CN210197853U - Slide rail assembly and refrigeration equipment - Google Patents

Abstract

The utility model relates to the technical field of household appliances, in particular to a slide rail component, which comprises a first slide rail with a first chute, a second slide rail with a second chute, a first roller and a second roller; the first roller is arranged at the front end of the first slide rail; the second roller is arranged at the rear end of the second slide rail; at least one part of the second sliding groove forms a first clamping edge, the first idler wheel can roll along the second sliding groove, the peripheral outline surface of the first idler wheel is in close contact with the inner wall of the first clamping edge, at least one part of the first sliding groove forms a second clamping edge, the second idler wheel can synchronously roll along the first sliding groove and the first idler wheel, and the peripheral outline surface of the second idler wheel is in close contact with the inner wall of the second clamping edge. Through the transverse acting force of the first clamping edge and the second clamping edge on the first roller and the second roller, the problem that a gap between the roller and the sliding groove generates horizontal swinging is avoided, and the stability of the sliding rail assembly is improved.

Description

Slide rail assembly and refrigeration equipment

Technical Field

The utility model relates to a household electrical appliances technical field, concretely relates to slide rail set spare and refrigeration plant.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

In the modern society, with the development of electronic technology and the continuous improvement of living standard of people, various household appliances such as refrigerators are more and more popular, and the refrigerators become the indispensable household appliances in the life of people.

The roller type slide rail assembly 100' of the existing refrigerator is shown in fig. 1-2, and specifically comprises: the outer slide rail 11 ', the bearing roller 111 ' fixed on the outer slide rail 11 ', the inner slide rail 12 ' fixed on the box body, the bearing roller 121 ' fixed on the inner slide rail, and the limiting block 13 ' fixedly installed at the end part of the outer slide rail 11 '. When the roller type slide rail works, the outer slide rail 11 'is matched with the roller 121', the inner slide rail 12 'is matched with the roller 111', and the limiting block 13 'is matched with the inner slide rail 12' to ensure that the outer slide rail 11 'and the inner slide rail 12' move relatively in the same direction. Wherein, a clearance of about 1mm is left at the matching part of 111 'and 12', so the movement of the slide rail is only restricted by one direction, namely the slide rail can move relatively along the length direction of the slide rail and also can move transversely, which causes the slide rail to swing left and right or the extraction distances at two sides are asynchronous when the slide rail is extracted, thus causing the problem of instability of the drawer slide rail; in order to reduce the transverse movement, a limit block 13 ' is added between the guide grooves of the inner slide rail and the outer slide rail in the existing structure, and considering that the matching position of the limit block 13 ' and the inner slide rail 12 ' has no clearance, the side wall of the bearing roller can be subjected to large friction resistance to cause the slide rail to be drawn and pulled unsmoothly, and if the clearance exists, the roller has swinging space in the transverse direction inevitably to cause the slide rail to swing and be unstable. Based on the above situation, the existing structure can only reduce this gap as much as possible, for example, a gap of about 1mm is left at the matching position of the limiting block 13 'and the inner slide rail 12', so that the swing space between the bearing roller and the outer and inner slide rails is reduced, but the gap cannot be completely eliminated, even if the swing amplitude generated by the gap of 1mm at the end of the bearing roller and the outer and inner slide rails is enlarged by nearly 10 times, the problem of unstable slide rail still exists, and the problem of large drawer swing on the slide rails is caused.

Disclosure of Invention

The present invention aims to solve the above technical problems in the related art at least to some extent. Therefore, the utility model provides a slide rail set spare and refrigeration plant, the utility model discloses in through the horizontal effort of first centre gripping limit, second centre gripping limit to first gyro wheel, second gyro wheel, avoided the gap between gyro wheel and the spout to produce horizontal hunting's problem, improved slide rail set spare's stability.

In order to achieve the above object, a first aspect of the present invention provides a slide rail assembly, which includes a first slide rail having a first sliding groove, a second slide rail having a second sliding groove, a first roller, and a second roller; the first roller is arranged at the front end of the first slide rail; the second roller is arranged at the rear end of the second slide rail; at least one part of the second sliding groove forms a first clamping edge, the first roller can roll along the second sliding groove, the peripheral profile surface of the first roller is in close contact with the inner wall of the first clamping edge, at least one part of the first sliding groove forms a second clamping edge, the second roller can synchronously roll along the first sliding groove and the first roller, and the peripheral profile surface of the second roller is in close contact with the inner wall of the second clamping edge.

In order to achieve the above object, the second aspect of the present invention further provides a refrigeration device, which includes a box body and an upper slide rail assembly, wherein the first slide rail is fixedly mounted on the inner wall of the box body, and the second slide rail disposed on the drawer body can be connected to the drawer body to be pulled out of or pushed into the box body.

The utility model discloses a to set up first centre gripping limit, second centre gripping limit in first spout, second spout, simultaneously first gyro wheel, the periphery profile face and first centre gripping limit, second centre gripping limit in close contact with of second gyro wheel for first centre gripping limit, second centre gripping limit produce horizontal effort to first gyro wheel, second gyro wheel, avoided the gap between gyro wheel and the spout to produce the problem of horizontal hunting, slide rail set's stability has been improved, thereby refrigerator drawer's stability has been improved.

In addition, according to the utility model discloses above-mentioned slide rail set spare can also have following additional technical characterstic:

according to an embodiment of the present invention, the cross-sections of the first clamping edge and the second clamping edge are two side edges of an inverted V shape; the peripheral outlines of the first roller and the second roller are provided with inverted V-shaped bulges matched with the second sliding groove and the first sliding groove; the part of the second clamping edge on the outer side surface of the second roller wheel is bent downwards and extends to form a first flange and a second flange, a gap is reserved between the inner side surface of the first flange and the outer side surface of the second roller wheel, a gap is reserved between the inner side surface of the second flange and the outer side surface of the first roller wheel, when the first roller wheel moves to a preset position, the inner side surface of the first flange can be abutted against the outer side surface of the second roller wheel, and the inner side surface of the second flange can be abutted against the outer side surface of the first roller wheel.

According to an embodiment of the present invention, the first clamping edge and the second clamping edge are two sides of an isosceles trapezoid; the peripheral profiles of the first roller and the second roller are provided with trapezoidal bulges matched with the second sliding groove and the first sliding groove.

According to an embodiment of the present invention, the first clamping edge and the second clamping edge are two sides of an inverted U shape; the peripheral profiles of the first roller and the second roller are provided with inverted U-shaped bulges matched with the second sliding groove and the first sliding groove.

According to the utility model discloses an embodiment, the cross-section on first centre gripping limit, second centre gripping limit is a plurality of style of calligraphy of falling V, isosceles trapezoid or the type of falling U of interconnect.

According to the utility model discloses an embodiment, the notch of first spout, second spout is down, and the rear end of first slide rail is provided with the first backstop portion that can support with second slide rail rear end.

According to the utility model discloses an embodiment, first backstop portion is the couple, bends inwards in the rear end of first slide rail and forms first backstop portion.

According to the utility model discloses an embodiment, the position that closes on the rear end of second spout is provided with the second backstop portion that can support with first gyro wheel.

According to the utility model discloses an embodiment, second backstop portion is the recess, forms the recess in the outer cell wall undercut of second spout, and the lateral wall slope of recess sets up, has the contained angle between the lateral wall of recess and the roof of second spout, and the contained angle is the obtuse angle.

According to the utility model discloses an embodiment, the projection coincidence of first gyro wheel, second gyro wheel on second spout or first spout cross-sectional direction.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is an exploded view of a prior art slide rail assembly;

FIG. 2 is a diagram illustrating a slide rail assembly according to the prior art;

fig. 3 is an exploded view of the slide rail assembly of the present invention;

fig. 4 is a schematic structural view of a second slide rail of the present invention;

fig. 5 is a schematic structural view of the first slide rail of the present invention;

fig. 6 is a cross-sectional view of the sliding rail assembly of the present invention, shown in fig. 1;

fig. 7 is a cross-sectional view of the middle rail assembly of the present invention shown in fig. 2.

Wherein the reference numbers are as follows:

a slide rail assembly 100'; an outer slide rail 11'; a roller 111'; an inner slide rail 12'; a roller 121'; a stop block 13'; a slide rail assembly 100; a first slide rail 11; a first chute 111; a first stopper portion 112; a second clamping edge 1111; a first rib 1112; a second slide rail 12; a second chute 121; a second stopper portion 122; side walls 1221; a first clamping edge 1211; a second retaining edge 1212; a first bend 1213; a first roller 13; a second roller 14.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

For convenience of description, spatially relative terms, such as "bottom," "front," "upper," "oblique," "lower," "top," "inner," "horizontal," "outer," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. This spatially relative relationship is intended to encompass different orientations of the mechanism in use or operation in addition to the orientation depicted in the figures. For example, if the mechanism in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The mechanism may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 3 to 5, according to an embodiment of the first aspect of the present invention, the first aspect of the present invention provides a slide rail assembly 100, the slide rail assembly 100 includes a first slide rail 11 having a first sliding slot 111, a second slide rail 12 having a second sliding slot 121, a first roller 13, and a second roller 14; the first roller 13 is mounted at the front end of the first slide rail 11; the second roller 14 is arranged at the rear end of the second slide rail 12; at least a portion of the second sliding groove 121 forms a first clamping edge 1211, the first roller 13 can roll along the second sliding groove 121, and the peripheral profile of the first roller 13 is in close contact with the inner walls of the two first clamping edges 1211, at least a portion of the first sliding groove 111 forms a second clamping edge 1111, the second roller 14 can synchronously roll along the first sliding groove 111 and the first roller 13, and the peripheral profile of the second roller 14 is in close contact with the inner walls of the two second clamping edges 1111.

It should be noted that the close contact in this embodiment means that the first clamping edge 1211 and the second clamping edge 1111 can be seamlessly connected with the first roller 13 and the second roller 14, and the first roller 13 and the second roller 14 can roll against the first clamping edge 1211 and the second clamping edge 1111.

In this embodiment, the second slide rail 12 may be an outer slide rail, i.e. a movable slide rail, the first slide rail 11 may be an inner slide rail, i.e. a fixed slide rail, the two first clamping edges 1211 generate inward clamping force on the first roller 13, respectively, acting on the outer contour surface of the first roller 13, the two first clamping edges 1211 are opposite in clamping force direction on the first roller 13 and perpendicular to the rolling direction of the first roller 13, so as to prevent lateral (left-right) swing during rolling of the first roller 13, correspondingly, the two second clamping edges 1111 generate inward clamping force on the second roller 14, respectively acting on the outer contour surface of the second roller 14, the two second clamping edges 1111 are opposite in clamping force direction on the second roller 14 and perpendicular to the rolling direction of the second roller 14, so as to prevent lateral (left-right) swing during rolling of the second roller 14, meanwhile, the first roller 13 and the second roller 14 can synchronously roll, so that the whole sliding rail assembly rolls more stably. When the second slide rail 12 is about to swing left and right or move back and forth, the acting forces between the first roller 13 and the second slide rail 12 and between the second roller 14 and the first slide rail 11 hinder the movement, so that the problem of large amplitude of the left and right swing or the front and back movement of the slide rail caused by the matching clearance which must be reserved in the existing roller type slide rail is solved, and the phenomenon of instability of the drawer of the refrigerator is improved.

In this embodiment, as shown in fig. 6 and 7, the cross sections of the first clamping edge 1211 and the second clamping edge 1111 are two sides of an inverted V shape; the outer peripheral profiles of the first roller 13 and the second roller 14 are provided with inverted V-shaped bulges matched with the second sliding groove 121 and the first sliding groove 111; and the shapes and angles of the inverted V-shapes of the cross sections of the first sliding groove 111 and the second sliding groove 121 are consistent with the shapes and angles of the inverted V-shapes of the first roller 13 and the second roller 14, the parts of the first clamping edge 1211 and the second clamping edge 1111 on the outer side of the second roller 14 and the first roller 13 along the first sliding groove 111 and the second sliding groove 121 are bent downwards and extend to form a first rib 1112 and a second rib 1212, a gap is formed between the inner side of the first rib 1112 and the outer side of the second roller 14, a gap is formed between the inner side of the second rib 1212 and the outer side of the first roller 13, and when the first roller 13 moves to a preset position, the inner side of the first rib 1112 can abut against the outer side of the second roller 14, and the inner side of the second rib 1212 can abut against the outer side of the first roller 13. It should be noted that, when the first roller 13 rolls to a predetermined position, for example, at the predetermined position, the clamping force of the first clamping edge 1211 and the second clamping edge 1111 on the second roller 14 and the first roller 13 is not enough to limit the lateral movement of one side of the second roller 14 and the first roller 13, at this time, the inner side of the first rib 1112 can abut against the outer side of the second roller 14, and the inner side of the second rib 1212 can abut against the outer side of the first roller 13, so as to avoid the problem of derailment of the second roller 14 and the first roller 13, and improve the stability of the sliding rail assembly.

Further, the portion of the first clamping edge 1211 on the inner side surface of the first roller 13 along the second sliding groove 121 is bent downward and extends to form a first bending portion 1213 for being in clearance fit with the inner side surface of the first roller 13, specifically, a certain clearance is provided between the inner side surface of the first roller 13 and the inner wall of the first bending portion 1213 on the second sliding groove 121, when the first roller 13 rolls to a predetermined position, for example, at this position, the clamping force of the second clamping edge 1111 on the first roller 13 is not enough to limit the lateral movement of the other side of the first roller 13, and at this time, the first bending portion 1213 may have a lateral resisting force on the inner side surface of the first roller 13, thereby avoiding the sliding position of the first roller 13 from shifting, and ensuring the stability of the sliding rail assembly.

According to an embodiment of the present invention, the cross-sections of the first clamping edge 1211 and the second clamping edge 1111 are two sides of an isosceles trapezoid; the outer peripheral profiles of the first roller 13 and the second roller 14 have trapezoidal protrusions matched with the second sliding groove 121 and the first sliding groove 111. Of course, the cross-sections of the first clamping edge 1211 and the second clamping edge 1111 are two sides of an inverted U shape; the outer peripheral profiles of the first roller 13 and the second roller 14 have inverted U-shaped protrusions which are matched with the second sliding groove 121 and the first sliding groove 111. The utility model discloses do not be because of above three kinds of modes are the limit, and the cross sectional shape of first spout 111, second spout 121 can be selected in a flexible way as required to the technical staff in the field, and this embodiment is not inconsistent here and is repeated.

In this embodiment, the cross sections of the first clamping edge 1211 and the second clamping edge 1111 are formed as a plurality of inverted V-shaped, isosceles trapezoid or inverted U-shaped grooves connected to each other, and the first slide rail 11 may have a plurality of first sliding grooves 111 connected to each other, that is, the first slide rail 11 may be a wave-shaped slide rail formed by connecting a plurality of inverted V-shaped grooves to each other; the second slide rail 12 has a plurality of second sliding grooves 121 connected to each other, that is, the second slide rail 12 may be a wave-shaped slide rail formed by connecting a plurality of inverted V-shaped grooves to each other; accordingly, the outer peripheral profiles of the first and second rollers 13 and 14 have wave-shaped protrusions that are engaged with the wave-shaped sliding grooves of the second and first sliding grooves 121 and 111.

In this embodiment, the notches of the first sliding groove 111 and the second sliding groove 121 face downward, and the rear end of the first sliding rail 11 is provided with a first stopping portion 112 capable of abutting against the rear end of the second sliding rail 12. Specifically, the first stopping portion 112 may be a hook, and the first stopping portion 112 is formed by bending inward at the rear end of the first sliding rail 11. Further, a plastic pad (not shown in the figure) can be arranged on the hook, when the second slide rail 12 slides to the position of the first stopping portion 112, the first stopping portion 112 limits the sliding-in position of the second slide rail 12, so that the second slide rail 12 cannot slide backwards any more, the problem that the second slide rail 12 collides with the box body due to the fact that the second slide rail 12 slides into the first slide rail 11 too much can be avoided, and the impact noise generated by limiting can be greatly reduced through the plastic pad.

Further, the projections of the first roller 13 and the second roller 14 in the cross-sectional direction of the second sliding chute 111 or the first sliding chute 121 coincide, specifically, the first roller 13 and the second roller 14 synchronously roll along the length direction of the second sliding chute 111 and the first sliding chute 121, and the projection of the second roller 14 in the cross-sectional (width) direction of the second sliding chute 111 coincides with the projection of the first roller 13 in the cross-sectional direction of the second sliding chute 111. With continued reference to fig. 4 and 5, according to an embodiment of the present invention, a second stopping portion 122 capable of abutting against the first roller 13 is disposed at a position near the rear end of the second sliding chute 121. Specifically, the second stopping portion 122 limits the sliding-out position of the second slide rail 12, so as to avoid the problem that the second slide rail 12 slides out of the first slide rail 11. The second stopping portion 122 may be a groove, an outer groove wall of the second sliding groove 121 is recessed downward to form a groove, a side wall 1221 of the groove is inclined, and an included angle is formed between the side wall 1221 of the groove and a top wall of the second sliding groove 121, and the included angle is an obtuse angle. Specifically, the side wall 1221 of the groove hinders the sliding of the first roller 13, and when the second slide rail 12 slides outward and moves relative to the first slide rail 11, and when the first roller 13 moves to the second stopping portion 122, the second stopping portion 122 hinders the rolling of the first roller 13, so that the first roller 13 cannot slide backward, and the problem that the second slide rail 12 slides out of the first slide rail 11 is avoided.

Compared with the prior art, the embodiment of the utility model provides an in gyro wheel and slide rail cooperation department be the V-arrangement and closely cooperate, have eliminated fit clearance, the transverse motion of slide rail is hindered to the interaction force that usable slide rail bearing produced, makes the slide rail only can follow length direction relative motion, reaches the purpose that improves drawer slide rail stability. Meanwhile, the sliding rail assembly in the embodiment does not need an inner sliding rail guide groove and an outer sliding rail guide groove of the existing structure and limiting parts, so that the aims of reducing parts, simple structure, good effect and low cost are fulfilled.

According to an embodiment of the second aspect of the present invention, the second aspect of the present invention further provides a refrigeration apparatus, the refrigeration apparatus has a box body and the sliding rail assembly according to the first aspect of the present invention, wherein the first sliding rail is fixedly installed on an inner wall of the box body, and the second sliding rail arranged on the pulling body can be pulled out of or pushed into the box body together with the pulling body. In particular, in this embodiment, the refrigeration device may be a refrigerator and the drawer may be a fruit and vegetable box.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (11)

1. A slide rail assembly is characterized by comprising a first slide rail with a first sliding chute, a second slide rail with a second sliding chute, a first roller and a second roller; the first roller is arranged at the front end of the first sliding rail; the second roller is arranged at the rear end of the second sliding rail; at least one part of the second sliding groove forms a first clamping edge, the first roller can roll along the second sliding groove, the peripheral contour surface of the first roller is in close contact with the inner wall of the first clamping edge, at least one part of the first sliding groove forms a second clamping edge, the second roller can roll along the first sliding groove and the first roller synchronously, and the peripheral contour surface of the second roller is in close contact with the inner wall of the second clamping edge.

2. The slide rail assembly of claim 1 wherein the first and second clamping edges are inverted V-shaped in cross-section; the peripheral outlines of the first roller and the second roller are provided with inverted V-shaped bulges matched with the second sliding groove and the first sliding groove; follow the part of first centre gripping limit, the second centre gripping limit of first spout, second spout on the lateral surface of second gyro wheel, first gyro wheel is bent downwards and is extended and form first flange, second flange, the medial surface of first flange with the clearance has between the lateral surface of second gyro wheel, the medial surface of second flange with the clearance has between the lateral surface of first gyro wheel, and when first gyro wheel moved to preset position, the medial surface of first flange with the lateral surface of second gyro wheel can contradict, the medial surface of second flange with the lateral surface of first gyro wheel can contradict.

3. The slide rail assembly of claim 1 wherein the cross-section of the first clamping edge and the second clamping edge is the two sides of an isosceles trapezoid; the peripheral profiles of the first roller and the second roller are provided with trapezoidal bulges matched with the second sliding groove and the first sliding groove.

4. The slide rail assembly of claim 1 wherein the first clamping edge and the second clamping edge have two sides with an inverted U-shape in cross-section; the peripheral profiles of the first roller and the second roller are provided with inverted U-shaped bulges matched with the second sliding groove and the first sliding groove.

5. The slide rail assembly of claim 1, wherein the cross-section of the first clamping edge and the second clamping edge is a plurality of inverted V-shaped, isosceles trapezoid or inverted U-shaped connected with each other.

6. The slide rail assembly according to claim 1, wherein the notches of the first and second sliding grooves face downward, and a first stopper portion capable of abutting against the rear end of the second slide rail is disposed at the rear end of the first slide rail.

7. The slide rail assembly of claim 6 wherein the first stop is a hook and is formed by bending inward at the rear end of the first slide rail.

8. The slide rail assembly according to claim 6, wherein a second stopping portion capable of abutting against the first roller is disposed near the rear end of the second sliding groove.

9. The sliding rail assembly according to claim 8, wherein the second stopping portion is a groove, an outer groove wall of the second sliding groove is recessed downward to form the groove, a side wall of the groove is inclined, and an included angle is formed between the side wall of the groove and a top wall of the second sliding groove, and the included angle is an obtuse angle.

10. The slide rail assembly of claim 6 wherein the projections of the first and second rollers in the cross-sectional direction of the second or first runner coincide.

11. The refrigeration equipment is characterized by comprising a box body and the slide rail assembly as claimed in any one of claims 1 to 10, wherein the first slide rail is fixedly mounted on the inner wall of the box body, and the second slide rail arranged on the drawing body can be connected with the drawing body to be drawn out of or pushed into the box body together.

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