WO2018010415A1

WO2018010415A1 - Drawer slider mechanism and refrigerator having same

Info

Publication number: WO2018010415A1
Application number: PCT/CN2017/071787
Authority: WO
Inventors: 陆日勇; 李登强; 刘昀曦; 纪璇
Original assignee: 青岛海尔股份有限公司
Priority date: 2016-07-15
Filing date: 2017-01-20
Publication date: 2018-01-18
Also published as: CN106152695A; CN106152695B

Abstract

Provided are a drawer slider mechanism and a refrigerator having the same. The drawer slider mechanism is used for pulling a drawer (100) out of a refrigerator body (200) or pushing the drawer (100) back into the refrigerator body (200) and comprises a first slide assembly (10) and a second slide assembly (10) oppositely arranged. Each of the slide assemblies (10) comprise a slide strip (20) and a slide groove (30) cooperating with each other. The slide strip (20) is arranged on a side edge of the drawer (100). The slide groove (30) is arranged in an inner frame of the refrigerator body (200). Each slide assembly (10) further comprises a rack (40) and a gear assembly (50) cooperating with each other. The rack (40) is located on a side edge of the drawer (100). The gear assembly (50) is located in the inner frame of the refrigerator body (200) and comprises a gear (51) that can rotate in situ. When the drawer (100) is pulled out of or pushed into the refrigerator body (200), the gear (51) engages with the rack (40). When the rack (40) moves with the drawer (100), the gear (51) of the gear assembly (50) engages with the rack (40), so that the support of the gear (51) to the rack (40), the support of the slide strip (20), and the support of the slide groove (30) form a triangular support structure, enabling stable support of the drawer (100).

Description

Drawer sliding mechanism and refrigerator having the same

The present application claims the priority of the Chinese patent application entitled "Drawer sliding mechanism and refrigerator having the same" as the application date is July 15, 2016, the application number is 201610562777.6, the entire contents of which are incorporated herein by reference. .

Technical field

The present invention relates to the field of refrigeration, and in particular to a drawer sliding mechanism and a refrigerator having the same.

Background technique

At present, there is a certain gap between the fruit and vegetable box (or drawer) that is easily pulled by the refrigerator on the market and the refrigerator box, so that the fruit and vegetable box (or drawer) can enter and exit. However, the design of such a gap brings many problems, mainly including the following two points: (1) when the user pulls out or pushes the force of the fruit and vegetable box (or drawer) not in the depth center line of the fruit and vegetable box (or drawer), Because there is no mechanism-assisted correction, the fruit and vegetable box (or drawer) will gradually shift to the depth center line. When the distance is continued to be pulled or closed, the end of the fruit and vegetable box (or drawer) will collide with the inner body of the refrigerator box. Noise is generated; (2) When a collision occurs, it also causes the pull-out or propulsion process to be unsmooth. At this time, the direction of the force needs to be changed, otherwise the pull-out or propulsion operation cannot be continued.

In the prior art, a recessed structure is designed on the door panel of the fruit and vegetable box (or drawer) to imply that the user places the hand at the recessed structure to complete the pull-out or push operation. The position of the concave structure is where the depth center line and the horizontal center point meet, so that there is a certain improvement in the smoothness of the pull-out or advancement process, but the influence of the user's force deviation cannot be eliminated, and therefore, it is still not very Solve the above problems well.

Summary of the invention

An object of the present invention is to provide a drawer sliding mechanism and a refrigerator having the same.

To achieve one of the above objects, an embodiment of the present invention provides a drawer sliding mechanism for pulling or pushing a drawer in a casing, comprising a first sliding component and a second sliding component disposed opposite each other, each sliding component including a sliding bar and a sliding groove, the sliding bar is disposed at a side of the drawer, the sliding slot is disposed at the inner body of the box, and each sliding component further comprises: a rack and a gear assembly that cooperate with each other, The rack is located at a side of the drawer, the gear assembly is located at the inner body of the case, wherein the gear assembly includes a gear that is rotatable in situ, when the drawer is pulled or advanced within the case, The gear is always meshed with the rack.

As a further improvement of an embodiment of the present invention, the gear assembly further includes an adjustment assembly for controlling the gear to move in a first direction to cause the gear to always mesh with the rack, the first The direction is one of the racks on either side of the drawer facing the other of the racks.

As a further improvement of an embodiment of the present invention, the adjusting component comprises a housing, a cover body located in the housing and a top spring, the housing is fixed at the inner casing, and the cover body is sleeved on Outside the gear, the top spring is located between the cover body and the housing, wherein the gear is rotatable relative to the cover body, and in the first direction, the cover body and the cover The gear is relatively stationary, and the top spring drives the cover and the gear to move together in a first direction.

As a further improvement of an embodiment of the present invention, the cover body has a "door" shape, and the cover body comprises a bottom wall and two side walls protruding from the bottom wall, the bottom wall and the side wall Forming a cavity to accommodate the gear, wherein each of the side walls is provided with an opening, and a central portion of the gear protrudes toward the side wall to form a protrusion, and when the protrusion and the opening cooperate with each other The gear is rotatable relative to the cover.

According to a further improvement of an embodiment of the present invention, a side of the bottom wall protruding from the side of the housing is formed in a first direction, and the top spring is sleeved on the cylinder, and the top is The two ends of the spring respectively correspond to the bottom wall and the casing, wherein the column and the top spring are movable relative to the casing to drive the cover body and the gear to move together in the first direction .

As a further improvement of an embodiment of the present invention, the housing is formed with a groove that cooperates with the stud, and the post moves in the groove when the gear moves in the first direction.

As a further improvement of an embodiment of the present invention, the housing includes a front housing and a rear housing that cooperate with each other, the rear housing is trapped in the inner casing, and the front housing is located at the inner casing One side of the drawer.

As a further improvement of an embodiment of the present invention, the front casing is formed with a continuous perforation, and the gear passes through the through hole to be meshed with the rack.

As a further improvement of an embodiment of the present invention, in the direction in which the drawer is advanced, the end of the rack has a slope, the tooth of the rack closest to the slope is a first tooth, and the slot is provided with a lower limit And the first tooth is engaged with the gear when the drawer advances and the slider and the lower limit member interfere with each other.

To achieve one of the above objects, an embodiment of the present invention provides a refrigerator including the drawer sliding mechanism according to any one of the above aspects.

Compared with the prior art, the beneficial effects of the present invention are: when the rack of the embodiment of the present invention moves with the drawer, the gear of the gear assembly always engages with the rack, so that the gear supports the rack and The support between the slider and the chute forms a triangular support to achieve stable support for the drawer.

DRAWINGS

1 is a schematic view showing a fitting structure of a drawer and a casing according to an embodiment of the present invention;

2 is an exploded view of a drawer and a casing according to an embodiment of the present invention;

3 is a schematic view showing a process of completing a pushing operation of a drawer according to an embodiment of the present invention;

Figure 4 is an exploded view of Figure 3;

Figure 5 is a schematic view showing the drawer in an initial state of pushing in an embodiment of the present invention;

6 is a schematic view of a chute according to an embodiment of the present invention;

Figure 7 is a partial cross-sectional view showing the engagement of a slide assembly according to an embodiment of the present invention;

Figure 8 is an exploded view of a gear assembly in accordance with an embodiment of the present invention;

Figure 9 is a cross-sectional view showing a first position of a gear assembly according to an embodiment of the present invention;

Fig. 10 is a cross-sectional view showing the second position of the gear unit according to the embodiment of the present invention.

detailed description

The invention will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, the embodiments are not intended to limit the invention, and the structural, method, or functional changes made by those skilled in the art in accordance with the embodiments are included in the scope of the present invention.

As shown in FIGS. 1 to 4, a refrigerator (not shown) according to an embodiment of the present invention includes a casing 200 in which a drawer 100 is movably provided, and the number of drawers 100 is not limited.

One embodiment of the present invention provides a sliding mechanism for the drawer 100 to be pulled or advanced within the casing 200, including two sets of sliding assemblies 10 disposed opposite each other. Of course, the sliding mechanism can also be used for drawing, expanding or contracting of other structures. It should be noted that the two sets of sliding assemblies 10 can be disposed on the left and right. In other embodiments, the two sets of sliding assemblies 10 can also be disposed above and below. In the present invention, two sets of sliding assemblies are disposed on the left and right as an example.

In addition, terms such as "upper", "above", "lower", "lower", "left", "right", and the like, used herein, are used to describe the relative position of the space for the purpose of illustration. The relationship of one unit or feature to another unit or feature. Terms of spatial relative position may be intended to include different orientations of the device in use or operation other than the orientation shown in the figures. For example, elements that are described as "below" or "beneath" other elements or features are "above" other elements or features. Thus, the exemplary term "lower" can encompass both the above and the The device may be oriented (rotated 90 degrees or other orientation) in other ways and the spatially related descriptors used herein interpreted accordingly.

A sliding mechanism according to an embodiment of the present invention is used to assist the drawer 100 to be pulled out or advanced within the casing 200.

The sliding mechanism includes a first sliding assembly 10a and a second sliding assembly 10b, the first sliding assembly 10a and the second sliding The components 10b are respectively disposed on both sides of the drawer 100 to assist the drawers 100 to enter and exit simultaneously.

Each of the sliding assemblies 10 includes a sliding bar 20 and a sliding slot 30. The sliding bar 20 is disposed at a side of the drawer 100, and the sliding slot 30 is disposed at a casing of the casing 200.

Each slide assembly 10 also includes a rack 40 and a gear assembly 50 that cooperate with one another.

The rack 40 is located on the side of the drawer 100, and the gear assembly 50 is located at the inner casing of the case 200.

Therein, the gear assembly 50 includes a gear 51 that is rotatable in situ, and the gear 51 always meshes with the rack 40 when the drawer 100 is pulled or advanced within the casing 200.

Here, the cooperation of the slider 20 and the sliding slot 30 can preliminarily realize that the drawer 100 is pushed or pulled out without deviation, and at the same time, the left and right sides of the drawer 100 are synchronously accessed. However, it should be noted that at this time, the moving paths of the matching structures of the left and right sliding bars 20 and the sliding grooves 30 are substantially two parallel lines on the left and right, and the supporting effect on the drawer 100 is not ideal, and the drawer 100 is pushed or pulled out. There will still be offset or non-synchronization during the process.

In the present embodiment, on the basis of the slider 20 and the sliding slot 30, each sliding assembly 10 further includes a rack 40 and a gear assembly 50 that cooperate with each other. When the rack 40 moves with the drawer 100, the gear assembly 50 The gear 51 is always meshed with the rack 40. Thus, another support point is realized between the gear 51 and the rack 40, and cooperates with the linear support of the slider 20 and the chute 30 to realize the triangular support of the drawer 100. .

It can be understood that when the user's force appears to deviate from the depth center line, the cooperation of the slider 20 with the chute 30, and the cooperation of the gear 51 and the rack 40 can assist in adjusting the direction of the pull-out or advancement process of the entire drawer 100, well. The problem that the drawer 100 is pulled out or the process of the pushing process is offset and there is noise, the drawer 100 is pulled out or the pushing process is not smooth, and the left and right portions of the drawer 100 are not synchronized.

In the present embodiment, the extending direction of the rack 40 is parallel to the extending direction of the slider 30, and the extending direction of both is the driving direction of the drawer 100 to control the pushing or pulling direction of the drawer 100.

The gear assembly 50 is disposed near the opening of the casing 200.

Further, in the present embodiment, in conjunction with FIG. 5 to FIG. 7, in the direction in which the drawer 100 is advanced, the end of the rack 40 has a slope 41, and the tooth of the rack 40 closest to the slope 41 is the first. Teeth 42.

The chute 30 is provided with a lower limit member 31. When the drawer 100 is advanced and the slider 20 and the lower limit member 31 interfere with each other, the first tooth 42 is in mesh with the gear 51.

The end of the slider 20 is formed with a seating portion 21, and when the drawer 100 is advanced, the seating portion 21 first interferes with the lower limit member 31.

Here, when the user loads the drawer 100 into the box 200, the alignment portions 21 of the left and right side sliders 20 enter the corresponding sliding slots 30. Under normal circumstances, the left and right sides can be ensured by the user's fine adjustment. The alignment portion 21 simultaneously interferes with the corresponding lower limit portion 31. Even if there is no simultaneous interference, since the lower limit portion 31 has a certain blocking effect on the alignment portion 21, when the lower limit portion 31 and the opposite portion 21 on one side interfere with each other and the other side does not interfere with each other, it can be on one side. When the mutual interference is maintained, the alignment portion 21 on the other side is adjusted so as to interfere with the corresponding lower limit portion 31 as well.

Since the alignment portions 21 on the left and right sides simultaneously interfere with the corresponding lower limit portion 31, that is, the first teeth 42 of the left and right racks 40 are simultaneously meshed with the corresponding gears 51, so that the left and right sides can be secured. The racks 40 move synchronously, thereby further assisting the simultaneous movement of the left and right sides of the drawer 100, and the drawer 100 does not shift.

In addition, the chute 30 further includes an upper limit member (not shown), and the drawer 100 has a convex portion (not labeled). When the user needs to pull the drawer 100 out a certain distance, the convex portion interferes with the upper limit portion. At this time, the drawer 100 needs to be lifted at an angle while continuing to pull out to take out the drawer 100, and the upper limit portion controls the limit pull-out position of the drawer 100.

Further, in the present embodiment, the gear assembly 50 further includes an adjustment assembly 52 for controlling the gear 51 to move in the first direction X such that the gear 51 is always toothed with the rack 40 The first direction X is a direction in which one of the racks 40 of the racks 40 on both sides of the drawer faces the other rack 40, that is, the first direction X is a horizontal direction, and the first direction X includes the gear 51 toward or Keep away from the direction of the rack 40.

Here, the gear 51 can move toward or away from the rack 40, but always keep the gear 51 and the rack 40 in mesh with each other. When the drawer When the 100 push or pull process is offset, the gear 51 always gives the rack 40 a resisting force toward the first direction X to eliminate the influence of the offset, so that the moving direction of the rack 40 remains stable, thereby ensuring that the drawer 100 is pulled. The exit or advancement process is not offset.

Specifically, in conjunction with FIGS. 8-10 , the adjustment assembly 52 includes a housing 53 , a cover 54 located within the housing 53 , and a top spring 55 .

The housing 53 is fixed to the inner casing, the cover 54 is sleeved outside the gear 51 , and the top spring 55 is located between the cover 54 and the casing 53 .

The gear 51 is rotatable relative to the cover 54 in the first direction X, the cover 54 is relatively stationary with the gear 51, and the top spring 55 drives the cover 54 and The gears 51 move together in a first direction X.

The cover 54 has a "door" shape, and the cover 54 includes a bottom wall 541 and two side walls 542 protruding from the bottom wall 541. The bottom wall 541 and the side wall 542 define a cavity. To accommodate the gear 51.

Each of the side walls 542 is provided with an opening 543. The middle portion of the gear 51 protrudes toward the side wall 542 to form a protrusion 511. When the protrusion 511 and the opening 543 cooperate with each other, The gear 51 is rotatable relative to the cover 54.

That is, the gear 51 can be rotated relative to the cover 54 , but the gear 51 does not move relative to the cover 54 in the first direction X or other directions, so that the gear 51 can be moved by the cover 54 in the first direction X, and The gear 51 can always remain in a rotating state during the movement.

A groove 534 is formed on the housing 53 to cooperate with the protrusion 511. The channel 534 extends in the first direction A. When the gear 51 moves, the protrusion 511 is in the channel 532. Moving, the channel 534 limits the direction of movement of the gear 51.

The housing 53 includes a front housing 531 and a rear housing 532 that are engaged with each other. The rear housing 532 is trapped in the inner casing, and the front housing 531 is located at a side of the inner casing near the drawer 100. side.

Here, the rear housing 532 is a semi-closed housing, the rear housing 532 is entirely trapped in the inner casing, and the front housing 531 and the rear housing 532 are engaged with each other. The front housing 531 is a flat-like structure, a flat structure. The claws (not shown) are projected to engage with the rear housing 532. In this way, it can be easily installed and disassembled.

The front housing 531 is formed with an edge portion 533 protruding toward the rear housing 532. The edge portion 533 is located inside the rear housing 532 and is located outside the cover body 54. The edge portion 533 is formed with the groove. Lane 534, the stud 511 of the gear 51 passes through the opening 543 in the cover 54 and is confined within the channel 534.

In addition, the front housing 531 is formed with a permanent through hole 535 through which the gear 51 passes to the rack 40. Here, the through hole 535 may be enclosed by the above-described edge portion 534.

Further, in the embodiment, the bottom wall 541 protrudes from the side of the rear housing 532 and protrudes in the first direction X to form a column 544. The top spring 55 is sleeved on the column 544. And the two ends of the top spring 55 correspond to the bottom wall 541 and the casing 53, respectively, wherein the pillar 544 and the top spring 55 are movable relative to the rear casing 532 to drive the The cover 54 and the gear 51 move together in the first direction X.

The rear housing 532 is formed with a hollow cylinder 536 protruding toward the cylinder 544. The cylinder 544 and the top spring 55 are confined in the hollow cylinder 536 to control the moving direction of the cylinder 544 and the top spring 55.

Preferably, the cylinder 544 is a cylinder, the inner cavity of the hollow cylinder 536 has a cylindrical shape, and the inner diameter of the hollow cylinder 536 is larger than the outer diameter of the cylinder 544.

It can be understood that the arrangement of the cylinder 544 and the hollow cylinder 536 can effectively control the deformation direction of the top spring 55, thereby ensuring that the force of the gear 51 on the rack 40 is always maintained in the first direction X.

Here, when the top spring 55 is in the uncompressed state, the cylinder 544 has a certain distance from the rear housing 532; when the top spring 55 is in the compressed state, the cylinder 544 gradually moves toward the rear housing 532; when the cylinder 544 When the rear housing 532 is resisted, the top spring 55 reaches the maximum compression amount.

Next, the pull-out advancement process of the drawer 100 in the casing 200 will be described.

When the drawer 100 is pushed into the cabinet 200, the drawer 100 is first inserted into the casing 200 at an oblique angle so that the slider 20 enters the chute 30, and the inclined surface 41 of the rack 40 slides relative to the gear 51.

The position of the drawer 100 is adjusted left and right so that the alignment portions 21 of the sliders 20 on the left and right sides simultaneously contact the corresponding lower limit portion 31. At this time, the first teeth 42 of the left and right racks 40 are respectively meshed with the corresponding gears 51. .

Continuing to push the drawer 100, the aligning portion 21 moves over the lower limit portion 31 and continues to move in the advancing direction, and the rack 40 continues to move in the advancing direction under the action of the gear 51 in the first direction X. At this time, the drawer 100 may be absent. The movement is shifted in the advancing direction until the drawer 100 reaches the extreme position.

When the drawer 100 is pulled out of the case 200, the rack 20 is moved in the pull-out direction by the force of the gear 51 in the first direction X, and the drawer 100 can be moved in the pull-out direction without any deviation.

When the pull-out process produces a frustration, the user needs to lift the drawer 100 such that the projection on the drawer 100 is disengaged from the upper limit portion and the drawer 100 is pulled away from the case 200.

It should be understood that, although the description is described in terms of embodiments, the embodiments are not intended to be construed as a single. The technical solutions in the embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions set forth above are merely illustrative of the possible embodiments of the present invention, and are not intended to limit the scope of the present invention. Changes are intended to be included within the scope of the invention.

Claims

A drawer sliding mechanism for pulling or pushing a drawer in a box body, comprising a first sliding component and a second sliding component disposed oppositely, each sliding component comprising a sliding slider and a sliding groove, wherein the sliding bar is provided The sliding groove is disposed at the side of the drawer, and the sliding groove is disposed at the inner body of the casing, wherein each sliding assembly further comprises: a cooperating rack and gear assembly, the rack is located at a side of the drawer The gear assembly is located at the inner casing of the casing, wherein the gear assembly includes a gear that is rotatable in situ, the gear always meshing with the rack when the drawer is pulled or advanced within the casing.
A drawer slide mechanism according to claim 1, wherein said gear assembly further includes an adjustment assembly for controlling said gear to move in a first direction to cause the gear to always mesh with said rack The first direction is a direction in which one of the racks on both sides of the drawer faces the other of the racks.
The drawer sliding mechanism according to claim 2, wherein the adjustment assembly comprises a housing, a cover body located in the housing, and a top spring, the housing being fixed at the inner casing, The cover body is sleeved on the outside of the gear, and the top spring is located between the cover body and the casing, wherein the gear wheel is rotatable relative to the cover body, and in the first direction, The cover is relatively stationary with the gear, and the top spring drives the cover and the gear to move together in a first direction.
The drawer sliding mechanism according to claim 3, wherein the cover body has a "door" shape, and the cover body comprises a bottom wall and two side walls protruding from the bottom wall, the bottom wall and The side wall encloses a cavity to receive the gear, wherein each of the side walls is provided with an opening, and a middle portion of the gear protrudes toward the side wall to form a protrusion, when the protrusion is When the openings are mated with each other, the gears are rotatable relative to the cover.
The drawer sliding mechanism according to claim 4, wherein a side of the bottom wall protruding from the side of the housing is formed in a first direction, and the top spring is sleeved on the cylinder. And the two ends of the top spring respectively correspond to the bottom wall and the casing, wherein the pillar and the top spring are movable relative to the casing to drive the cover body and the gear together Move in the first direction.
The drawer sliding mechanism according to claim 4, wherein the housing is formed with a groove that cooperates with the stud, and when the gear moves in the first direction, the stud is Move inside the channel.
The drawer sliding mechanism according to claim 1, wherein the housing comprises a front housing and a rear housing that cooperate with each other, the rear housing is trapped in the inner casing, and the front housing is located at the The liner is adjacent to one side of the drawer.
A drawer sliding mechanism according to claim 7, wherein said front casing is formed with a continuous perforation, and said gear passes through said through hole to be engaged with said rack.
The drawer sliding mechanism according to claim 1, wherein in the drawer advancing direction, the end of the rack has a slope, and the tooth of the rack closest to the slope is a first tooth, the chute A lower limit member is disposed thereon, and the first tooth is engaged with the gear when the drawer advances and the slider and the lower limit member interfere with each other.
A refrigerator characterized by comprising the drawer sliding mechanism according to any one of claims 1-9.