CN102620512A

CN102620512A - Drawer component and refrigerator with same

Info

Publication number: CN102620512A
Application number: CN2012101246160A
Authority: CN
Inventors: 吴刚; 李利云
Original assignee: Hefei Midea Rongshida Refrigerator Co Ltd
Current assignee: Hefei Midea Refrigerator Co Ltd
Priority date: 2012-04-25
Filing date: 2012-04-25
Publication date: 2012-08-01
Anticipated expiration: 2032-04-25
Also published as: CN102620512B

Abstract

The invention discloses a drawer component, which comprises a drawer, a slide rail and a self-closing device, wherein the upper surface of the bottom wall of the slide rail is provided with a concave part; the self-closing device comprises a gear box, a first roller, a second roller, first to fourth gears, a transmission gear and an elastic member; when the second roller is positioned outside the concave part, the first roller is separated from the upper surface of the bottom wall of the slide rail; when the second roller is positioned in the concave part, the first roller is in contact with the upper surface of the bottom wall of the slide rail; the firth to fourth gears are rotatablely arranged in the gear box; the transmission gear is rotatablely arranged in the gear box; when the second roller is positioned in a front section of the concave part, the first roller rotates in a first direction and energy is accumulated by the elastic member; and when the second roller is positioned in a rear section of the concave part, the elastic member is used for driving the first roller to roll in the first direction. The drawer component according to the invention has an automatic door closing and locking function. The invention also discloses a refrigerator.

Description

Drawer appliance and refrigerator with it

Technical field

The present invention relates to art of refrigeration units, especially relate to a kind of drawer appliance and refrigerator with it.

Background technology

In the refrigerator of traditional band drawing and pulling type door body, can fasten common one section mild plane of tip designs at box bilateral wall for guaranteeing the door body; Rely on a separation of drawer gravity that it is inwardly slided realizing closing the door purpose, but when beating opening door body, can drawer be raised slightly; This just needs to increase the door spacing can not interfere between the assurance door body, and bigger door spacing has not only influenced the outward appearance of refrigerator, increases design difficulty; Simultaneously because the door closing force that the terminal inclined-plane of slide rail produces is fainter; Offset the inefficacy that causes closing the door, poor practicability easily by frictional force.

Summary of the invention

The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or provides a kind of useful commerce to select at least.

For this reason, one object of the present invention is to propose a kind of drawer appliance, and said drawer appliance has the function that auto lock is closed the door in the process of closing.

Another object of the present invention is to propose a kind of refrigerator with above-mentioned drawer appliance.

Drawer appliance according to first aspect present invention embodiment comprises: drawer; Slide rail, the upper surface of the diapire of said slide rail is provided with recess, and said recess is from the rear end face of the said slide rail preset width that stretches out towards the front end face definite length extended of said slide rail and from the interior edge of the upper surface of the diapire of said slide rail; And self-closing device, said self-closing device comprises: gear housing, said gear housing are installed on the said drawer; First and second rollers; Wherein the upper surface of said first roller and the diapire of said slide rail breaks away from when said second roller is positioned at said recess outside, and said first roller contacts with the upper surface of the diapire of said slide rail and the upper surface disengaging of the diapire of said second roller and said slide rail when said second roller is positioned at said recess; First to fourth gear, said first to fourth gear is installed in rotation in the said gear housing; Travelling gear, said travelling gear are rotatably installed in the said gear housing; And elastic component; Wherein said second gear and said travelling gear break away from engagement, said first gear drive with said the 3rd gears engaged and said first roller that said first and second gears rotate so that through the said elastic component accumulation of energy of said the 3rd gear drive on first directions when said second roller is positioned at the leading portion of said recess, and wherein the disengaging of said first gear and said the 3rd gear is meshed when said second roller is positioned at the back segment of said recess, the said second and the 4th gear meshes with said travelling gear respectively and said elastic component drives the second direction rotation opposite with said first direction of said the 4th gear edge so that said the 4th gear scrolls up in said first party through said travelling gear and said first roller of said second gear drive.

According to the drawer appliance of the embodiment of the invention, through self-closing device is set, in the process that the promotion drawer is closed the door, self-closing device can impose on restoring force that is used to close the door of drawer; Final realization is closed the door automatically thereby the promotion drawer continues to move backward, and easy to operate, practicality is good; And it is reliable to close the door, the not generation of tight phenomenon of avoiding closing the door in the process of closing the door, in addition; Self-closing device adopts gear drive, compact conformation not only, and transmission is accurate; And long service life, not fragile, reduced maintenance cost.

In addition, drawer appliance according to the above embodiment of the present invention can also have following additional technical feature:

In one embodiment of the invention, said the 4th gear and said travelling gear mesh all the time.

In one embodiment of the invention, said elastic component is a wind spring, and an end of said wind spring and the said third and fourth gear relative fixed and the other end and said gear housing are fixed.Through elastic component is set, in the process that drawer is closed, said elastic component can be drawer a restoring force that is used to close the door is provided, thereby realizes the function of closing the door automatically of drawer.

In one embodiment of the invention; Said first and second gears are installed on the roller shaft of said first roller; And said third and fourth gear is installed in the said gear housing through same gear shaft, and an end of said elastic component is fixed on the said gear shaft and the other end links to each other with said gear housing.

In one embodiment of the invention, each in said first to fourth gear includes the wheel body and the gear teeth that are formed on a part of outer peripheral face of said wheel body, and the gear teeth of said travelling gear are formed on the whole outer peripheral face of its wheel body.

Alternatively, the said first and the 4th gear and said travelling gear are the cylinder external gear.

Alternatively, said guide rail is the channel-section steel shape.

In one embodiment of the invention, the upper surface of the diapire of the upper surface of said recess and said guide rail passes through chamfered transition.Thus, can prevent that second roller from moving to recess after, second roller directly falls into the vibrations that recess brings; And then self-closing device is being closed the door or backward in the button fly front process; First roller and second roller can be changed reposefully, increase the service life of self-closing device, reduce use cost.

In one embodiment of the invention; Said guide rail comprises left rail that is positioned at said drawer left side and the right guide rail that is positioned at said drawer right, and said self-closing device comprises and is located at said drawer left side and right side and corresponding with said left rail and right guide rail respectively left self-closing device and right self-closing device respectively.Thus; Through the left and right sides self-closing device is set respectively at drawer; Thereby on the one hand sufficient more restoring force can be provided in the process that drawer is closed; Guaranteed also that on the other hand drawer constantly being in balance in the closed procedure of pass automatically, prevents because drawer disequilibrium generation catching phenomenon causes the inefficacy of closing the door.

According to the drawer appliance of the embodiment of the invention, have the locking function of closing the door automatically, and simple in structure, it is reliable to close the door, and practicality is good.

Refrigerator according to second aspect present invention embodiment comprises: casing has chamber between refrigeration in the said casing; With drawer appliance according to the above embodiment of the present invention, the guide rail of wherein said drawer appliance is installed on the sidewall of chamber between said refrigeration and said drawer can be pulled out and can push chamber between said refrigeration along said guide rail.

Refrigerator according to the embodiment of the invention; Have the drawer appliance of self-closing locking function through setting, avoided closing and occur closing the door not tight phenomenon in the closed procedure, prevent cold air and hot outside convection current in the refrigerator at drawer; Thereby reduce the energy consumption of refrigerator, practice thrift use cost.

Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.

Description of drawings

Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:

Fig. 1 is the sectional perspective explosive view according to the drawer appliance of the embodiment of the invention;

Fig. 2 is the enlarged drawing of diagram C portion among Fig. 1;

Fig. 3 is said second roller according to the drawer appliance of the embodiment of the invention when being positioned at said recess leading portion, each gear meshing sketch map in the said self-closing device;

Fig. 4 shows first gear described in Fig. 3 and said the 3rd gear meshing state;

Fig. 5 shows the engagement of second gear described in Fig. 3, said the 4th gear and said travelling gear;

Fig. 6 is said second roller according to the drawer appliance of the embodiment of the invention when being positioned at said recess back segment, each gear meshing sketch map in the said self-closing device;

Fig. 7 shows first gear described in Fig. 6 and said the 3rd gear meshing state; With

Fig. 8 shows the engagement of second gear described in Fig. 6, said the 4th gear and said travelling gear.

The specific embodiment

Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, be intended to be used to explain the present invention, and can not be interpreted as limitation of the present invention.

In description of the invention; It will be appreciated that; The orientation of indications such as term " " center ", " vertically ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " vertically ", " level ", " top ", " end " " interior ", " clockwise ", " counterclockwise " or position relation are for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the present invention; rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.

In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more a plurality of these characteristics can be shown or impliedly comprised to the characteristic that is limited with " first ", " second " clearly.In description of the invention, except as otherwise noted, the implication of " a plurality of " is two or more, only if clear and definite qualification is arranged in addition.

In the present invention, only if clear and definite regulation and qualification are arranged in addition, broad understanding should be done in terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected, and also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can understand above-mentioned term concrete implication in the present invention as the case may be.

In the present invention; Only if clear and definite regulation and qualification are arranged in addition; First characteristic second characteristic it " on " or D score can comprise that first and second characteristics directly contact, can comprise that also first and second characteristics are not directly contacts but through the contact of the additional features between them.And, first characteristic second characteristic " on ", " top " and " above " comprise first characteristic directly over second characteristic and oblique upper, or only represent that the first characteristic level height is higher than second characteristic.First characteristic second characteristic " under ", " below " and " below " comprise first characteristic directly over second characteristic and oblique upper, or only represent that the first characteristic level height is less than second characteristic.

Following with reference to the drawer appliance 100 of figure 1-Fig. 8 description according to the embodiment of the invention.

According to the drawer appliance 100 of the embodiment of the invention, comprise drawer 1, slide rail 2 and self-closing device 3.

Like Fig. 1-shown in Figure 2, the upper surface of the diapire of slide rail 2 is provided with recess 21, and recess 21 is from the rear end face of slide rail 2 preset width that stretches out towards the front end face definite length extended of slide rail 2 and from the interior edge of the upper surface of the diapire of slide rail 2.In other words, like Fig. 1-shown in Figure 2, recess 21 is formed on the rear portion of slide rail 2, its center dant from the left side of slide rail 2 along right extension the backward, and recess 21 along the width of left and right directions less than the width of slide rail 2 along left and right directions.

Here, what need specification is that " preceding " in the foregoing description promptly depended on nearly user's direction; " back " promptly refers to the direction away from the user, and " left side " promptly refers to user's left side, and " right side " promptly refers to user's right side; As shown in Figure 1; In the description on concerned direction " preceding ", " back ", " left side ", " right side ",, all do this understanding below if there is not specified otherwise.

Self-closing device 3 comprises gear housing 39, first roller 37 and second roller 38, first gear 31, second gear 32, the 3rd gear 33, the 4th gear 34, travelling gear 35 and elastic component 36, like Fig. 3-shown in Figure 8.Need to prove; Be the engagement of clearly illustrating between each gear; Fig. 4 only illustrates shows first gear 31 and the 3rd gear meshing state among Fig. 3, and Fig. 5 only illustrates shows among Fig. 3 the engagement of second gear 32, the 4th gear 34 and travelling gear 35, correspondingly; Fig. 7 only illustrates shows the engagement of first gear 31 and the 3rd gear 33 among Fig. 6, the engagement that shows among Fig. 6 second gear 32, the 4th gear 34 and travelling gear 35 of signal only among Fig. 8.

Gear housing 39 is installed on the drawer 1.First roller 37 broke away from the upper surface of the diapire of slide rail 2 when second roller 38 was positioned at recess 21 outsides, and first roller 37 contacts with the upper surface of the diapire of slide rail 2 and the upper surface disengaging of the diapire of second roller 38 and slide rail 2 when second roller 38 is positioned at recess 21.That is to say; On above-below direction, be higher than and the tangent tangent line of second roller, 38 minimum points with the tangent tangent line of first roller, 37 minimum points; Like this when second roller 38 slides on the slide rail 2 of recess 21 front sides; Because the tangent line of first roller, 37 minimum points is higher than the tangent line of second roller, 38 minimum points, therefore first roller 37 is maked somebody a mere figurehead above slide rail 2, and this moment, first roller 37 did not roll; And when second roller 38 moved in the recess 21, owing to the built on stilts effect of

recess

21,37 beginnings of first roller were rolled on slide rail 2, and this moment second, roller 38 was owing to being maked somebody a mere figurehead by recess 21 and not rolling.

First gear 31, second gear 32, the 3rd gear 33 and the 4th gear 34 are installed in rotation in the gear housing 39.Travelling gear 35 is rotatably installed in the gear housing 39.Elastic component 36 is located in the gear housing 39; Wherein second gear 32 and travelling gear 35 break away from engagement,

first gear

31 and 33 engagements of the 3rd gear and first roller 37 and drive first gears 31 and second gear 32 and go up at first direction (direction A as shown in Figure 3) and rotate so that drive elastic components 36 accumulation of energys through the 3rd gear 33 when second roller 38 is positioned at the leading portion of recess 21, wherein when second roller 38 is positioned at the back segment of recess 21 first gear 31 and the 3rd gear 33 break away from engagement, second gear 32 and the 4th gear 34 respectively with travelling gear 35 engagements and elastic component 36 drive the 4th gear 34 edges opposite with first direction second direction (the direction B shown in Fig. 6) rotation so that the 4th gear 34 scrolls up in first party through travelling gear 35 and second gear, 32 drivings, first roller 37.

In other words, clear for describing, moving backward with drawer 1 driven gear casing 39 is that example describes with the process of closing the door promptly.At first, when sliding on the slide rail 21 of second roller 38 in the front side of recess 21, because first roller, 37 quilts are built on stilts, so each gears all do not produce relative motion in the gear housing 39; When second roller 38 moves in the recess 21, self-closing device 3 is started working, and wherein second motion of roller 38 in recess 21 can be divided into two parts; A part is the leading portion that second roller 38 is positioned at recess 21, and a part is the back segment that second roller 38 is positioned at recess 21, need to prove; Here " leading portion " is appreciated that the front portion into recess 21; " back segment " is appreciated that to the rear portion of recess 21, that is to say, " leading portion " and " back segment " constitutes recess 21; Promptly can be understood as with a certain position on the recess 21 is critical localisation; The recess 21 that is positioned at this critical localisation front side is " leading portion ", and correspondingly, the recess 21 that is positioned at this critical localisation rear side is " back segment ".

Particularly; When second roller 38 is positioned at the leading portion of recess 21; First roller 37 rolls to drive first gear 31 with second gear 32 is rotated in a first direction along first direction, and first gear 31 and the 3rd gear 33 engagement fit are as shown in Figure 4 at this moment; The 4th gear 34 second gear 32 and travelling gear 35 disengaging engagements with travelling gear 35 engagement fit; As shown in Figure 5, therefore the 3rd gear 33 second direction rotation in the drive lower edge of first gear 31, the 4th gear 34 also rotates along second direction under the drive of the 3rd gear 33; Travelling gear 35 is the first direction rotation in the drive lower edge of the 4th gear 34, and the 3rd gear 33 and the 4th gear 34 also can drive elastic component 36 deposit elastic potential energys along the second direction rotation.

When second roller 38 was positioned at the back segment of recess 21, first gear 31 and the 3rd gear 33 break away from engagement, and be as shown in Figure 7; Second gear 32 and the 4th gear 34 cooperate with travelling gear 35 respectively; As shown in Figure 8, the energy of storage promptly rotated along first direction to drive the

3rd gear

33 and 34 reverse rotations of the 4th gear before elastic component 36 meetings this moment discharged; The 4th gear 34 drives travelling gear 35 and rotates along second direction; Travelling gear 35 and then drive second gear 32 along first direction rotation, second gear 32 further drives first rollers 37 and rolls the rotating direction when promptly first roller 37 still keeps second roller 38 to be positioned at recess 21 leading portions along first direction; That is to say first roller 37 still driven gear casing 39 and drawer 1 move backward, finally accomplish the action of closing the door of drawer 1.

That is to say that second roller 38 is when the preceding lateral movement of recess 21, self-closing device 3 is not worked; When second roller 38 moves to recess 21 backs and is positioned at the leading portion of recess 21; Self-closing device 3 is started working and by elastic component 36 energy reserves; When second roller 38 is positioned at the back segment of recess 21; Elastic component 36 releases energy and continues motion backward to drive drawer 1, and promptly elastic component 36 can impose on 37 1 restoring forces of closing the door of first roller, the said restoring force of closing the door effect under; First roller 37 can drives drawer 1 return back to the position of closing the door, the not tight phenomenon of closing the door that realizes the function of closing the door automatically and avoided conventional drawer 1 when closing, to exist.The process of wherein opening the door is opposite with the above-mentioned process of closing the door, and is not described in detail here.

According to the drawer appliance 100 of the embodiment of the invention, through self-closing device 3 is set, in the process that promotion drawer 1 is closed the door, self-closing device 3 can impose on restoring force that is used to close the door of drawer; Final realization is closed the door automatically thereby promotion drawer 1 continues to move backward, and easy to operate, practicality is good; And it is reliable to close the door, the not generation of tight phenomenon of avoiding closing the door in the process of closing the door, in addition; Self-closing device 3 adopts gear drives, compact conformation not only, and transmission is accurate; And long service life, not fragile, reduced maintenance cost.

It will be appreciated that in an embodiment of the present invention, gear housing 39 should be made broad understanding, for example can be independent casing, also can form the part of drawer, as long as said gear can be installed.

In one embodiment of the invention, elastic component 36 can be wind spring, and an end of said wind spring and the 3rd gear 33 and the 4th gear 34 relative fixed and the other end and gear housing 39 are fixing.For example; The free end of wind spring can be fixing with the 3rd gear 33 and the 4th gear 34; Such the 3rd gear 33 and the 4th gear 34 are in the process of rotation; Can stretch or compress said reel, thereby make said wind spring savings elastic potential energy and in the process that drawer 1 is closed, the restoring force of closing the door is provided for drawer 1.Wherein be formed with the fixed head 392 that is used for fixing wind spring on the gear housing 39, fixed head 392 can be from the inboard of the roof of gear housing 39 to extending below, and is as shown in Figure 3.

Like Fig. 3-shown in Figure 5; For the structure that makes self-closing device 3 simpler, compact; First gear 31 and second gear 32 can be installed on the axis of rolling 371 of first roller 37; That is to say that first through hole 393 and first gear 31 and second gear 32 that the axis of rolling 371 of first roller 37 passes on the gear housing 39 are rigidly connected; Further; The 3rd gear 33 and the 4th gear 34 are installed in the gear housing 39 through same gear shaft 391; And an end of elastic component 36 is fixed on the gear shaft 391 and the other end links to each other with gear housing 39, and in other words, the 3rd gear 33, the 4th gear 34 and elastic component 36 are fixing with gear shaft 391 respectively; One end of gear shaft 391 rotatably is located in second through hole 394 of gear housing 39, and wherein second through hole 394 can be formed on the bottom of fixed head 392.Thus; Make the structure of gear housing 39 compact and reasonable more that becomes; Make things convenient for the transmission between each parts to cooperate, reduce the energy loss in the transmission process, thereby make self-closing device 3 that the stable restoring force of closing the door can be provided in the process that drawer 1 is closed; Realize the function of closing the door automatically of drawer 1, laborsaving convenience.

Travelling gear 35 can be installed on the said gear housing 39 through rotating shaft 353; It is an end of rotating shaft 353 and travelling gear 35 is rigidly connected and the other end rotatably is located in the third through-hole 395 of gear housing 39; Wherein alternatively, the 4th gear 34 meshes with travelling gear 35 all the time.

Individual in a concrete example of the present invention; Like Fig. 1-shown in Figure 8; In first gear 31, second gear 32, the 3rd gear 33 and the 4th gear 34 each includes wheel body and is formed on the gear teeth on a part of outer peripheral face of wheel body, and the gear teeth of travelling gear 35 are formed on the whole outer peripheral face of its wheel body.

In other words, like Fig. 4-Fig. 5, Fig. 7-shown in Figure 8, first gear 31 comprises first wheel body 311 and first gear teeth 312 that are formed on a part of outer circumference surface of first wheel body 311; Second gear teeth 32 comprise second gear teeth 322 on second wheel body 321 and a part of outer peripheral face that is formed on second wheel body 321; The 3rd gear 33 comprises the third round tooth 332 on third round body 331 and a part of outer peripheral face that is formed on third round body 331; The 4th gear 34 comprises the 4th gear 342 on four-wheel body 341 and a part of outer peripheral face that is formed on four-wheel body 341; Travelling gear 35 comprises the 5th gear teeth 352 on the 5th wheel body 351 and the whole outer peripheral face that is formed on the 5th wheel body 351.That is to say that first gear 31, second gear 32, the 3rd gear 33 and the 4th gear 34 are half gear, and travelling gear 35 is the full-depth tooth wheel.Here, need to prove that half gear is appreciated that to the gear teeth and only is formed on the part outer peripheral face of wheel body.

Need to prove; The one of ordinary skilled in the art can be according to actual conditions; For example come to change flexibly some parameters of first gear 31, second gear 32, the 3rd gear 33 and the 4th gear 34 according to the factors such as length of the size of drawer 1, slide rail 2 upper recess 21, what of the size of wheel body or the gear teeth for example, thus make self-closing device 3 can adapt to different drawers 1 better; The stable restoring force of closing the door is provided in the process that drawer 1 is closed, and that realizes drawer 1 closes locking function automatically.

Through first gear 31, second gear 32, the 3rd gear 33 and the 4th gear 34 are set to half gear; Thereby when self-closing device 3 work, can realize engagement and separation (breaking away from engagement) between each gear better, guarantee the reliability of transmission; For example when second roller 38 is positioned at the leading portion of recess 21;

First gear

31 and 33 engagements of the 3rd gear, and when second roller 38 was positioned at the back segment of recess 21, first gear 31 and the 3rd gear 33 broke away from engagement; Adopt half gear structure also further to reduce the volume of self-closing device 3 simultaneously, thereby make the structure of self-closing device 3 more reasonable, compact.Alternatively, first gear 31, second gear 32, the 3rd gear 33, the 4th gear 34 and travelling gear 35 are the cylinder external gear.

Wherein for further improving drawer 1 suffered restoring force of closing the door in closing the door; Guarantee that simultaneously drawer 1 is in the balance of closing automatically in the closed procedure; Guide rail 2 can comprise the left rail that is positioned at drawer 1 left side and the right guide rail that is positioned at drawer 1 right side, and self-closing device 3 comprises and is located at drawer 1 left side and right side and corresponding with left rail and right guide rail respectively left self-closing device and right self-closing device respectively.Thus; Through the left and right sides self-closing device is set respectively at drawer 1; Thereby on the one hand sufficient more restoring force can be provided in the process that drawer 1 is closed; Guaranteed also that on the other hand drawer 1 constantly being in balance in the closed procedure of pass automatically, prevents because drawer 3 disequilibrium generation catching phenomena cause the inefficacy of closing the door.

The shape of guide rail 2 does not have specific (special) requirements, and alternatively, guide rail 2 can be the channel-section steel shape.Its center dant 21 is formed on the inboard at the rear portion of guide rail 2, and the upper surface of recess 21 is can be with the upper surface of the diapire of guide rail 2 smooth excessively, for example through the inclined-plane excessively or excessive through cambered surface.Thus; After can preventing that second roller 38 from moving to recess 21; Second roller 38 directly falls into the vibrations that recess 21 brings, and then self-closing device 3 is being closed the door or in the button fly front process, first roller 37 and second roller 38 can be changed reposefully backward; Increase the service life of self-closing device 3, reduce use cost.

With reference to Fig. 1-Fig. 8 the motion state according to drawer appliance 100 each parts in the process of closing the door of the embodiment of the invention is described below; Wherein convenient, clear for describing; With elastic component 36 is wind spring; Wind spring, the 3rd gear 33, the 4th gear 34 are fixed on the gear housing 39 through gear shaft 391, and first gear 31 and second gear 32 are fixing with roller shaft 371 respectively, first direction for counterclockwise and second direction be that instantaneous time is that example describes.

In the process that drawer 1 is closed; Second roller 38 at first slides on the slide rail 2 of recess 21 front sides, and this moment, therefore first roller 37 was maked somebody a mere figurehead on slide rail 2 because the bottom surface of first roller 37 is higher; Each gear in first roller 37 and the gear housing 39 is not worked, and promptly self-closing device 3 stays out of.

Like Fig. 3-shown in Figure 5, to continue to promote drawer 1 and move backward, second roller 38 moved to recess 21 and was maked somebody a mere figurehead by recess 21 this moment, and first roller 37 contacts with slide rail 2 and begins rolling work.When second roller 38 is positioned at the leading portion of recess 21;

First gear

31 and 33 engagements of the 3rd gear; Second gear 32 breaks away from engagement with travelling gear 35, because drawer 1 move backward, therefore first roller 37 rolls counterclockwise and is rotated counterclockwise through roller shaft 371 drive first gears 31 and second gear 32; First gear 31 and then drive the 3rd gear 33 and gear shaft 391 turns clockwise; Gear shaft 391 is owing to fix with an end of wind spring, but so gear shaft 391 rotation tension coil springs, thereby make wind spring savings and deposit elastic potential energy.

Like Fig. 6-shown in Figure 8; When first roller 37 continued motion backward and second roller 38 and is positioned at the back segment of recess 21, first gear 31 just broke away from engagement with the 3rd gear 33, and second gear 32 and the 4th gear 34 cooperate with travelling gear 35 respectively; This moment since first gear 31 and the 3rd gear 33 no longer mesh; No longer exist outer force urges the 3rd gear 33 and turn clockwise, the wind spring that therefore is in extended state is with the form release of the elastic potential energy of laying in elastic force, i.e. driven gear axle 391 and the

3rd gear

33 and 34 reverse rotations of the 4th gear; Promptly be rotated counterclockwise; Owing to thereby the engagement of the 4th gear 34 and travelling gear 35 makes travelling gear 35 along the pointers rotation, travelling gear 35 meshes with second gear 32 again, so second gear 32 is rotated counterclockwise and then drives roller shaft 371 and first roller 37 is rotated counterclockwise; Promptly first roller 37 still rolls according to initial rotating direction; That is to say, but the motion backward automatically of first roller, 37 drives drawer 1, the locking function of closing the door automatically of realization drawer 1.

Drawer 1 is in the process of opening, and the course of work of self-closing device 3 is just opposite with said process, is not described in detail here.

Drawer appliance 100 according to the embodiment of the invention has the locking function of closing the door automatically, and simple in structure, and it is reliable to close the door, and practicality is good.

Refrigerator according to the embodiment of the invention; Comprise casing and drawer appliance 100; Has chamber between refrigeration in the casing; Drawer appliance 100 is a drawer appliance 100 according to the above embodiment of the present invention, and wherein the guide rail 2 of drawer appliance 100 is installed on the sidewall of chamber between said refrigeration and drawer 1 can be pulled out and can push chamber between said refrigeration along guide rail 2.

Refrigerator according to the embodiment of the invention; Have the drawer appliance 100 of self-closing locking function through setting, avoided closing and occur closing the door not tight phenomenon in the closed procedure, prevent cold air and hot outside convection current in the refrigerator at drawer 1; Thereby reduce the energy consumption of refrigerator, practice thrift use cost.

For example constitute evaporimeter, compressor and electrical system etc. and operation has been known by the one of ordinary skilled in the art according to other of the refrigerator of the embodiment of the invention, be not described in detail here.

In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.

Although illustrated and described embodiments of the invention above; It is understandable that; The foregoing description is exemplary; Can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change the foregoing description under the situation that does not break away from principle of the present invention and aim within the scope of the invention, modification, replacement and modification.

Claims

1. a drawer appliance is characterized in that, comprising:

Drawer;

Slide rail, the upper surface of the diapire of said slide rail is provided with recess, and said recess is from the rear end face of the said slide rail preset width that stretches out towards the front end face definite length extended of said slide rail and from the interior edge of the upper surface of the diapire of said slide rail; With

Self-closing device, said self-closing device comprises:

Gear housing, said gear housing are installed on the said drawer;

First and second rollers; Wherein the upper surface of said first roller and the diapire of said slide rail breaks away from when said second roller is positioned at said recess outside, and said first roller contacts with the upper surface of the diapire of said slide rail and the upper surface disengaging of the diapire of said second roller and said slide rail when said second roller is positioned at said recess;

First to fourth gear, said first to fourth gear is installed in rotation in the said gear housing;

Travelling gear, said travelling gear are rotatably installed in the said gear housing; With

Elastic component; Wherein said second gear and said travelling gear break away from engagement, said first gear drive with said the 3rd gears engaged and said first roller that said first and second gears rotate so that through the said elastic component accumulation of energy of said the 3rd gear drive on first directions when said second roller is positioned at the leading portion of said recess, and wherein the disengaging of said first gear and said the 3rd gear is meshed when said second roller is positioned at the back segment of said recess, the said second and the 4th gear meshes with said travelling gear respectively and said elastic component drives the second direction rotation opposite with said first direction of said the 4th gear edge so that said the 4th gear scrolls up in said first party through said travelling gear and said first roller of said second gear drive.

2. drawer appliance according to claim 1 is characterized in that, said the 4th gear and said travelling gear mesh all the time.

3. drawer appliance according to claim 1 and 2 is characterized in that, said elastic component is a wind spring, and an end of said wind spring and the said third and fourth gear relative fixed and the other end and said gear housing are fixed.

4. according to each described drawer appliance among the claim 1-3; It is characterized in that; Said first and second gears are installed on the roller shaft of said first roller; And said third and fourth gear is installed in the said gear housing through same gear shaft, and an end of said elastic component is fixed on the said gear shaft and the other end links to each other with said gear housing.

5. according to each described drawer appliance among the claim 1-4; It is characterized in that; The gear teeth of each in said first to fourth gear are formed on a part of outer peripheral face of its wheel body, and the gear teeth of said travelling gear are formed on the whole outer peripheral face of its wheel body.

6. drawer appliance according to claim 5 is characterized in that, the said first and the 4th gear and said travelling gear are the cylinder external gear.

7. according to each described drawer appliance among the claim 1-6, it is characterized in that said guide rail is the channel-section steel shape.

8. according to each described drawer appliance among the claim 1-7, it is characterized in that the upper surface of the upper surface of said recess and the diapire of said guide rail passes through chamfered transition.

9. according to each described drawer appliance among the claim 1-8; It is characterized in that; Said guide rail comprises left rail that is positioned at said drawer left side and the right guide rail that is positioned at said drawer right, and said self-closing device comprises and is located at said drawer left side and right side and corresponding with said left rail and right guide rail respectively left self-closing device and right self-closing device respectively.

10. a refrigerator is characterized in that, comprising:

Casing has chamber between refrigeration in the said casing;

Drawer appliance, said drawer appliance are according to each described drawer appliance among the claim 1-9, and the guide rail of wherein said drawer appliance is installed on the sidewall of chamber between said refrigeration and said drawer can be pulled out and can push chamber between said refrigeration along said guide rail.