CN114076486A

CN114076486A - Adjustable rack device and refrigerator with same

Info

Publication number: CN114076486A
Application number: CN202010839289.1A
Authority: CN
Inventors: 程学丽; 张振兴; 朱小兵
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2022-02-22
Anticipated expiration: 2040-08-19
Also published as: CN116951883A; CN114076486B; WO2022037549A1

Abstract

The invention discloses an adjustable rack device and a refrigerator with the same, wherein the adjustable rack device comprises a rack assembly and a slide way assembly, the rack assembly comprises a rack body and a support, the slide way assembly comprises a rail groove, a slide plate and at least two stop positions, the slide plate is provided with a pulley, the support is provided with a hook at one side facing the rail groove, the hook is matched with the pulley and can rotate along with the pulley by taking the central shaft of the pulley as a rotating shaft, an interference part matched with the pulley is arranged below the hook, the interference part is arranged into a two-section ramp, the two-section ramp is in smooth transition and has an obtuse angle, and the included angle is arranged into an opening structure facing the rail groove. The adjustable rack can conveniently adjust the position of the rack device or disassemble the rack device only by lifting or pulling the rack body, and interference feedback is provided in the process, so that the specific position condition is prompted, and the operation of a user is facilitated.

Description

Adjustable rack device and refrigerator with same

Technical Field

The present disclosure relates to a rack device and a refrigerator having the same, and more particularly, to a rack device with a sliding rail and a refrigerator having the same.

Background

At present, in order to improve the internal volume rate of a refrigerator, a plurality of liner ribs which are fixed in height and are vertically arranged are generally arranged at the inner side of a refrigeration chamber of a mainstream refrigerator, racks are arranged at the heights corresponding to the liner ribs, so that more food can be stored by utilizing each rack, when the position of each rack needs to be adjusted, a rear mechanism of each rack is usually required to be released from a buckle, the rack is pulled out along the liner ribs and then is moved onto the corresponding liner ribs, and the rear mechanism is buckled after being pushed inwards, so that the adjustment of the upper position and the lower position of each rack is completed.

Disclosure of Invention

An objective of the present invention is to provide an adjustable rack device, which can solve the technical problems that the rack is complex to operate during the up-and-down movement process, and the specific fastening position of the bracket is difficult to know.

One object of the present invention is to provide a refrigerator with an adjustable rack device.

To achieve one of the above objects, an embodiment of the present invention provides an adjustable rack device,

the rack assembly comprises a rack assembly and a slide way assembly, the rack assembly comprises a rack body and a support, the slide way assembly comprises a track groove, after the rack assembly is assembled on the slide way assembly, the track groove is perpendicular to the rack body, at least two stopping positions and a sliding plate are arranged in the track groove, the at least two stopping positions are arranged at intervals along the track groove, the support and the stopping positions can be selectively limited and fixed, a pulley is arranged on the sliding plate, a hook is arranged on one side of the support facing the track groove, the hook is matched with the pulley, is supported by the pulley and can rotate along with the pulley by taking the central shaft of the pulley as a rotating shaft, and an interference part matched with the pulley is arranged below the hook, wherein the interference part is a two-section type ramp, the two-section ramp is in smooth transition, and the included angle between the first-section ramp and the second-section ramp is an obtuse angle, the included angle is set to be an opening structure towards the direction of the track groove.

As a further improvement of an embodiment of the present invention, the support is provided with two hooks in a direction perpendicular to the shelf body, and two pulleys corresponding to the two hooks respectively are provided in the sliding plate.

As a further improvement of an embodiment of the present invention, at least two of the brackets are respectively fixed on two sides of the shelf body, and at least two of the sliding track assemblies and the pulleys are respectively matched with the brackets to assemble the shelf assembly.

As a further improvement of an embodiment of the present invention, a groove is provided on a side surface of the pulley, and when the rack assembly and the chute assembly are assembled and relatively stationary, the hook is engaged with the groove, and the opening is downwardly engaged with the pulley.

As a further improvement of an embodiment of the present invention, the pulley has two pulley ends, the pulley ends are connected by a pulley connecting portion, the pulley connecting portion is cylindrical, and the pulley ends and the pulley connecting portion together form the groove.

As a further improvement of an embodiment of the present invention, the pulley end portions of the pulleys are circular truncated cone-shaped, and the diameter of the cylinder of the pulley connecting portion is smaller than the diameter of the circular truncated cone of the pulley end portions on both sides.

As a further improvement of an embodiment of the present invention, the bracket is provided with a first hook at a position close to the end of the shelf body in a direction perpendicular to the shelf body, and a second hook at a position away from the shelf body, an inner diameter of a hook bend of the first hook is equal to a diameter of the pulley connecting portion, a hook bend of the second hook is a strip-shaped groove, the strip-shaped groove extends in a direction parallel to the rail groove and has a size larger than the diameter of the pulley connecting portion, and when the shelf assembly and the chute assembly are assembled and relatively static, a surface of the pulley connecting portion is in contact with an end surface of the strip-shaped groove close to the rail groove.

As a further improvement of an embodiment of the present invention, a first interference portion and a first supporting portion are disposed below the first hook, the first supporting portion is a protrusion having an inclined surface with respect to a vertical direction, and the inclined surface and the first matching portion of the stop surface have a self-locking angle.

As a further improvement of the embodiment of the present invention, a second interference portion and a second supporting portion of the L-shaped handle structure are disposed below the second hook, and are fixed to the second engaging portion of the stop surface in a limited manner, and the second engaging portion is a groove that engages with the upper and lower end surfaces of the L-shaped handle structure.

As a further improvement of an embodiment of the present invention, the stopper includes a guide portion engaged with the pulley, and the guide portion has a curved surface curved toward a rear back surface of the track groove.

In order to achieve the above object, an embodiment of the present invention provides a refrigerator, which includes storage compartments with different temperature regions, and a door for opening and closing the storage compartments, and the refrigerator further includes an adjustable rack device according to any of the above technical solutions, wherein the adjustable rack device is disposed in at least one storage compartment of the refrigerator.

Compared with the prior art, the adjustable rack device and the refrigerator with the same have the advantages that the position of the rack can be easily adjusted and disassembled by lifting, pushing and the like through the pulley arranged inside the adjustable rack device, and meanwhile, the interference part matched with the pulley is arranged, so that a user can fully know the current state of the device in the process of adjusting the position of the rack, and the operation of the user is facilitated, and the service life of the whole device is prolonged.

Drawings

FIG. 1 is a schematic view illustrating an adjustable rack apparatus of a refrigerator according to an embodiment of the present invention;

FIG. 2 is a schematic view of an adjustable rack apparatus according to one embodiment of the present invention after assembly;

FIG. 3 is an exploded perspective view of the sliding assembly of the adjustable rack device in accordance with one embodiment of the present invention;

FIG. 4 is a schematic diagram of a pulley of an adjustable rack device according to an embodiment of the present invention;

FIG. 5 is a schematic view of the assembly of the rack assembly and the sliding panel of the adjustable rack apparatus in one embodiment of the present invention;

FIG. 6 is an assembly view of a rack assembly and pulleys of an adjustable rack apparatus in accordance with one embodiment of the present invention;

FIG. 7 is a schematic view of an adjustable rack apparatus in a resting state according to one embodiment of the present invention;

FIG. 8 is a schematic view of an adjustable rack apparatus in a mobile state according to one embodiment of the present invention;

FIG. 9 is a schematic view of an adjustable rack apparatus in a disassembled state according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

As shown in fig. 1, in an embodiment of the present invention, an adjustable rack device may be disposed in a refrigerator.

The refrigerator comprises storage compartments in different temperature areas and a door body for opening and closing the storage compartments. Generally, a refrigerator is provided with a refrigerating compartment having a temperature higher than 0 degrees celsius and a freezing compartment having a temperature lower than 0 degrees celsius. An adjustable rack device is disposed within at least one storage compartment of the refrigerator.

In the present embodiment, the adjustable rack device is disposed in the refrigerating chamber to divide the storage space of the refrigerating chamber for storing articles. Of course, in other embodiments, the adjustable rack device can be arranged in the freezing chamber and the temperature changing chamber.

Taking the embodiment of the present invention as an example of being disposed in a refrigerating chamber, the adjustable rack device includes a rack assembly 1 and a slide assembly 2, wherein the slide assembly 2 is disposed at a back panel of a box body of the refrigerating chamber, and the rack assembly 1 is disposed in a storage space of the refrigerating chamber in a height-adjustable manner in cooperation with the slide assembly 2. The rack assembly 1 can be one or more, and the slide assembly 2 can also be provided with one or more.

In the present embodiment, the chute assembly 2 is arranged in the vertical direction of the refrigerating chamber, and when the rack assembly 1 is assembled to the chute assembly 2 and is stationary with respect to the chute assembly 2, the rack body 11 of the rack assembly 1 is arranged horizontally. When the back plate of the refrigerating chamber box body is vertically arranged, the shelf body 11 is perpendicular to the back plate. In this way, the articles placed on the shelf body 11 can be made more stable.

In the present embodiment, the rack assembly 1 is movable on the slide assembly 2, i.e. in a vertical direction on the refrigerator compartment. The space between the rack assemblies 1 and the space between the top plate and the bottom plate of the refrigerating chamber box body of the rack assemblies 1 can be adjusted by moving, so that more articles with different heights can be stored.

As shown in fig. 2 and 3, in the present embodiment, the rack assembly 1 includes a rack body 11 and a bracket 12. The number of the brackets 12 is more than two, the brackets are respectively fixed on two sides of the shelf body 11, and the number of the slide way components 2 matched with the brackets 12 is the same as that of the slide way components. In the present embodiment, the brackets 12 are fixed to both sides of the shelf body 11, so that the balance of both sides of the shelf body 11 can be maintained during the adjustment of the up-down position of the rack assembly 1.

In the present embodiment, the chute assembly 2 includes a rail groove 21, a stopper 22, a slide plate 23, and a pulley 24.

When the refrigerator is assembled, the rail groove 21 is fixed on a rear back plate of a refrigerator compartment through a screw hole formed in the rear back surface, a fixing block 212 is preferably arranged at the lower end of the rail groove 21, the lower surface of the fixing block 212 is in partial surface contact with the upper surface of the rail groove 21, the screw hole corresponds to the screw hole, the rail groove 21 is placed on the surface of the rear back plate, then the fixing block 212 corresponds to the rail groove 21, and the fixing block 212 and the rail groove 21 are fixed on the rear back plate of the refrigerating compartment together through screws, so that the overall structural strength is enhanced.

The stop position 22 and the slide plate 23 are provided inside the track groove 21, and the slide plate 23 is slidably connected to the track groove 21. Further, the pulley 24 is fixed inside the sliding plate 23.

The track groove 21 is provided with at least two stop positions 22 at intervals along the vertical direction, and the density of the track groove can be controlled according to the application requirement of the adjustable rack device, so that the track groove and the bracket 12 can be selectively limited and fixed. In the present embodiment, the stopper 22 is disposed adjacent to the rear surface of the rail groove 21. Of course, in other embodiments, the stop 22 may be disposed adjacent to the side surface of the track groove 21.

As shown in fig. 3, in the present embodiment, when the track groove 21 is arranged along the vertical direction, the stopping position 22 is disposed in the strip-shaped stopping portion 220, and the strip-shaped stopping portion 220 is disposed close to the back surface of the track groove 21, so that the stopping effect is maintained, and the relative movement between the sliding plate 23 and the track groove 21 is not affected, and the sliding plate can be conveniently detached and replaced. Of course, other embodiments exist, such as disposing the stopping portions 220 adjacent to two sides inside the track groove 21, and the effect of stopping the bracket 12 can be achieved as well.

The lower end of the stopping portion 220 is provided with a bracket which can be fixed with the lower port of the track groove 21, so that the lower end of the track groove 21 is sealed, and the effect of limiting the sliding plate 23 in the track groove 21 is achieved. Further, slide rails 211 are disposed at both sides inside the rail groove 21. Of course, in other embodiments, such as those in which the stop positions 22 are disposed on both sides inside the track groove 21, the slide rail 211 may be fixed to the rear back surface of the track groove 21.

In the present embodiment, the slide rail 211 includes an inner rail 211a and an outer rail 211b, and the inner rail 211a and the outer rail 211b are slidably connected by a ball. The inner rail 211a is fixed to the sliding plate 23, and the outer rail 211b is fixedly coupled to the inner sidewall of the rail groove 21.

In the process of the sliding plate 23 moving up and down under force, the sliding plate can drive the inner rail 211a to move relative to the outer rail 211b and the fixed rail groove 21 through the balls between the inner rail and the outer rail 211 b.

As shown in fig. 4 to 6, in the present embodiment, the sliding plate 23 is provided therein with a pulley 24 that is snap-connected with the hook 121 on the bracket 12, two ends of the pulley 24 are fixed in the grooves of the sliding plate 23, the sides of the pulley 24 are provided with grooves, when the rack assembly 1 and the slide assembly 2 are assembled and relatively stationary, the hook 121 fits into the grooves, the opening is downwardly clamped to the pulley 24, and the pulley 24 gives an upward supporting force to the hook 121 after clamping, thereby supporting the bracket 12.

Further, the pulley 24 can rotate around its central axis as a rotation axis, and when the rack assembly 1 is assembled with the slide rail assembly 2 and the rack assembly 1 and the rail groove 21 move relative to each other in the vertical direction, the matching structure of the pulley 24 and the hook 121 can provide a supporting force in the vertical direction for the sliding plate 23.

As shown in fig. 4, wherein the pulley structure includes two pulley ends 241 and a pulley connecting portion 242 connecting the two pulley ends 241, the pulley ends 241 and the pulley connecting portion 242 are circular in cross section, and the radius of the cross section of the pulley connecting portion 242 is smaller than that of the cross section of the pulley ends 241, it can be understood that the two pulley ends 241 may not be uniform in shape and size, and the pulley ends 241 and the pulley connecting portion 242 may be any shape and size sufficient to form a groove capable of accommodating the bracket hook 121, so as to achieve the desired technical effect. Of course, the pulley end 241 and the pulley connecting portion 242 may be integrally formed, and may also be formed in a split manner by a structure such as a corresponding protrusion or a through hole, and may be formed by a manner such as a joggle or a snap.

In this embodiment, the pulley end 241 is integrally shaped like a circular truncated cone, the two pulley ends 241 are arranged on a single pulley 24, and the edges of the circular truncated cone are processed by chamfering and cutting, so that when the pulley 24 is fixed with the hook 121 on the bracket 12, the side surfaces of the circular truncated cone and the chamfer form a guide structure, and the hook 121 can be more conveniently fixed with the groove on the pulley 24. The lower surfaces of the circular truncated cones are outward, the two upper surfaces of the circular truncated cones are opposite and connected with the pulley connecting portion 242, the pulley connecting portion 242 is a cylinder with the diameter of the bottom surface smaller than that of the upper surfaces of the circular truncated cones, the side surface of the cylinder and the upper surfaces of the circular truncated cones on the left side and the right side form a groove together, the width of the groove is equal to the thickness of the center of the hook 121 on the support 12, namely the height of the cylinder of the pulley connecting portion 242 is equal to the thickness of the center of the hook 121 on the support 12, and therefore the hook 121 can be fixed with the pulley 24.

As shown in fig. 5 and 6, in the present embodiment, when the sliding plate 23 is fixed in the vertical direction, two pulleys 24 are longitudinally provided inside the sliding plate 23, and after the sliding plate 23 is fixed to the bracket 12 by the pulleys 24, a first pulley 24a close to the support surface of the rack body 11 is engaged with a first hook 121a of the bracket 12, and a second pulley 24b far from the support surface 11 is engaged with a second hook 121b of the bracket 12, so that the bracket 12 can rotate about the central axis of the first pulley 24a as a rotation axis, it can be understood that the inner diameter of the hook of the first hook 121a is equal to the diameter of the pulley connecting portion 242, and the hook of the second hook 121b is a strip-shaped groove extending in the vertical direction and having a size larger than the diameter of the pulley connecting portion 242, so that the second pulley 24b can move in the inner horizontal direction.

Further, when the rack assembly 1 and the chute assembly 2 are assembled and relatively still, the surface of the pulley connecting portion 242 contacts with the end surface of the strip-shaped groove far from the rail groove 21, and is lifted up on the rack body 11, and after the rack assembly 2 rotates by a certain angle with the central axis of the first pulley 24a as the rotating axis, the pulley connecting portion 242 gradually moves from the end surface of the strip-shaped groove far from the rail groove 21 to the end surface of the strip-shaped groove close to the rail groove 21.

In this embodiment, the bracket 12 further includes, in addition to the hook structure 121, an interference portion 122 located in a downward extending direction of the hook 121 and a supporting portion 123 connected to the interference portion 122, where the interference portion 122 is a two-stage ramp structure, the ramp is in smooth transition, an included angle of the ramp is an obtuse angle, and the included angle is set to be an opening structure toward the track groove 21, that is, the first stage ramp 1221 is connected to the hook 121 and extends in a direction away from the track groove 21 in a vertical direction, and the second stage ramp 1222 is connected to the supporting portion 123 and extends in a horizontal direction away from the shelf body 11.

Further, the supporting portion 123 is matched with a corresponding structure on the stopping position 22. The upper structure of the bracket 12 is integrally formed.

As shown in fig. 6, in order to match at least two pulleys 24 and at least two hooks 121 correspondingly disposed, in the present embodiment, a first interference portion 122a and a first supporting portion 123a are disposed on the first hook 121a, and a second interference portion 122b and a second supporting portion 123b are disposed on the second hook 121b, wherein the first section of ramp 1221 of the first interference portion 122a and the second interference portion 122b have the same inclination angle, and the included angle between the two ramps of the second interference portion 122b is smaller than the included angle between the two ramps of the first interference portion 122a, so that a stronger interference feedback can be provided without affecting the functions of the supporting portions connected thereto, and an excellent guiding function can be provided. Of course, the pulley 24, the hook 121, the interference portion 122, and the support portion 123 provided corresponding thereto may be provided in three or more groups in the same manner, and the structure may be sufficient to allow the holder to rotate about the center of the first pulley 24.

In the present embodiment, the assembly of the rack assembly 1 is completed by the engagement of the

internal pulleys

24a and 24b of the sliding plate 23 in the slide assembly 2 with the two

hooks

121a and 121b of the bracket 12, and it can be understood that the rail groove 21 is disposed perpendicular to the rack body 11 after the rack assembly 1 is assembled to the slide assembly 2 and reaches the relatively stationary state. The shelf body 11 is fixedly disposed opposite to the sliding plate 23 through the bracket 12, and the sliding plate 23 is slidably fitted to the rail groove 21.

As shown in fig. 7, in the rest state of the adjustable rack device, the second supporting portion 123b is preferably an L-shaped handle structure, and is fixed in a limited manner with the second matching portion 22b in the stopping position 22 disposed inside the track groove 21, and the second matching portion 22b is preferably a groove, which is used to match the upper and lower end surfaces of the L-shaped handle structure and has an L-shaped cross section. Meanwhile, in the present embodiment, the distance between the stop positions 22 is set such that two sets of stop positions 22 are provided between the first support portion 123a and the second support portion 123b when the bracket 12 is fixed to the stop positions 22.

Further, the first supporting portion 123a is a protrusion having an inclined surface inclined with respect to the vertical direction, the inclined surface and the first matching portion 22a in the stopping position 22 have a self-locking angle, the self-locking angle can provide a friction force for the rack assembly 1 in a non-bearing state so that the rack assembly does not move relative to the bar-shaped stopping portion 220, and on the other hand, the matching structure can reduce the wear of the second supporting portion 123b and the second matching portion 22b in use to a certain extent.

Under the static state, the second matching part 22b on the stopping position 22 and the second supporting part 123b on the bracket 12 are fixed in a limiting way, at this time, the second matching part is in surface contact with the lower end face of the second supporting part 123b, meanwhile, the first supporting part 123a and the first matching part 22a are self-locked, when the supporting surface of the shelf body 11 bears the weight, due to the lever principle, the first supporting part 123a and the second supporting part 123b respectively give a horizontal pressure towards the inside of the stopping position 22 to the first matching part 22a and the second matching part 22b, and correspondingly obtain the supporting forces in opposite directions respectively provided by the first matching part 22a and the second matching part 22b, at this time, due to the friction coefficient between the supporting part 123 and the stopping position 22, the friction force of the contact surface is increased, and further, the whole structure of the adjustable shelf device is stable.

In the stationary state, if the shelf body 11 is lifted up, the shelf assembly 1 rotates by a certain angle using the central axis of the first pulley 24a as the rotation axis, and the adjustable shelf device can be switched to the moving state, as shown in fig. 8.

At this time, the first supporting portion 123a is separated from the first engaging portion 22a, the second supporting portion 123b is separated from the second engaging portion 22b, and the self-locking and position-limiting structure is released, and after the separation, the second pulley 24b is fastened to the second hook 121b on the side close to the rail groove 21 from the side far from the rail groove 21 in the second hook 121 b. Further, the shelf body 11 is supported or pushed down along the vertical direction, and the sliding plate 23 fixed with the bracket 12 can move up and down along the vertical direction.

It can be understood that, during the process of switching the adjustable rack device from the moving state to the stationary state again, due to the closed design of the slide assembly 2, it is difficult for the user to see the position relationship of the first and second

engaging portions

22a and 22b in the internal stop gear 22, and therefore it is difficult to accurately limit the corresponding supporting portion 123, and therefore, the stop gear 22 is further provided with a guiding portion 22c engaged with the second supporting portion 123b, and the guiding portion 22c is located between the first and second

engaging portions

22a and 22 b. In the present embodiment, the outer edge of the guiding portion 22c is a cambered surface, and the whole guiding portion is curved toward the back surface of the track groove 21, that is, when the strip-shaped stopping portion 220 is arranged along the vertical direction, the center of the circular arc is located inside the strip-shaped stopping portion 220 and obliquely above the guiding portion 22 c; when the second supporting portion 123b contacts the first engaging portion 22a or the guiding portion 22c, the curved surface of the guiding portion 22c enables the second supporting portion 123b to slide downward, so as to be fixed to the second engaging portion 22b under the guiding portion 22 c.

In this embodiment, when the adjustable rack is in a moving state, a user lifts the rack assembly 1 to move vertically upward relative to the slide assembly 2, and at this time, the bracket 12 provides an upward supporting force for the pulley 24 located inside the bracket through the hook point of the hook 121, so as to drive the sliding plate 23 and the inner rail 211a of the slide rail 211 fixed thereto to move upward relative to the outer rail 211b of the slide rail 211 and the rail groove 21. Similarly, when moving downward, the user pushes or pulls the rack assembly 1 downward, and the hook of the hook 121 provides a downward supporting force for the pulley 24, so as to drive the sliding plate 23 and the inner rail 211a fixed thereto to move downward relative to the outer rail 211b and the rail groove 21.

In the moving state, the edge of the shelf body 11 on the side close to the track groove 21 is further lifted, so that the first hook 121a is disengaged from the first pulley 24a, and the second hook 121b is disengaged from the second pulley 24b, at this time, the adjustable shelf device is switched to the disassembled state, as shown in fig. 9.

After the pulley 24 is disengaged from the hook 121, the rack assembly 1 is continuously lifted, the pulley 24 moves downward relative to the bracket 12 and mechanically collides with the interference portion 122 disposed below the hook 121, more specifically, collides with the second-stage ramp 1222 to form interference feedback, so that the user can know the position state of the pulley 24 and the bracket 12 at this time, and then the rack assembly 1 is horizontally pulled out, and the rack assembly 1 can be disengaged from the chute assembly 2.

When pulled out in the horizontal direction, the pulley 24 moves along the second ramp 1222 of the interference portion 122 with respect to the bracket 12. Correspondingly, it can be understood that, during the installation process, the pulley 24 slides along the second ramp 1222 of the interference portion 122 toward the rack body 11 relative to the bracket 12, so as to send the support portion 123 into the chute assembly 2, and further, the pulley 24 mechanically collides with the interference portion 122, more specifically, with the first ramp 1221, so as to form an interference feedback, at this time, the rack assembly 1 is slowly lowered along the first ramp 1221, and finally, the pulley 24 is fixed to the hook 121 in a limiting manner, so that the rack assembly 1 and the chute assembly 2 are completely installed.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. An adjustable rack device comprises a rack assembly (1) and a slideway assembly (2),

the shelf assembly (1) comprises a shelf body (11) and a bracket (12), the slideway assembly (2) comprises a track groove (21), the track groove (21) is vertical to the shelf body (11) after the shelf assembly (1) is assembled on the slideway assembly (2),

characterized in that at least two stop positions (22) and a sliding plate (23) are arranged in the track groove (21),

the at least two stop gears (22) are arranged at intervals along the direction of the track groove (21), the bracket (12) and the stop gears (22) can be selectively limited and fixed,

a pulley (24) is arranged on the sliding plate (23), a hook (121) is arranged on one side of the support (12) facing the track groove (21), the hook (121) is matched with the pulley (24), is supported by the pulley (24), can rotate along with the pulley (24) by taking the central shaft of the pulley (24) as a rotating shaft, and an interference part (122) matched with the pulley (24) is arranged below the hook (121),

the interference part (122) is arranged to be a two-section ramp, the two-section ramp is in smooth transition, an included angle between the first section ramp (1221) and the second section ramp (1222) is an obtuse angle, and the included angle is arranged to be an opening structure towards the track groove (21).

2. The adjustable rack device according to claim 1, wherein the bracket (12) is provided with two hooks (121) in a direction perpendicular to the rack body (11), and the sliding plate (23) is provided with two pulleys (24) corresponding to the two hooks (121), respectively.

3. The adjustable rack device according to claim 1, wherein at least two of said brackets (12) are fixed to both sides of said rack body (11), respectively;

at least two slideway components (2) and pulleys (24) are respectively matched with the bracket (12) to assemble the shelf component (1).

4. The adjustable rack device according to claim 1, wherein the pulley (24) is provided with a groove at the side, and when the rack assembly (1) and the slide assembly (2) are at the assembly completion and are relatively stationary, the hook (121) is engaged with the groove, and the opening is clamped downwards to the pulley (24).

5. The adjustable rack device according to claim 4, wherein the pulley (24) has two pulley ends (241), the pulley ends (241) being connected by a pulley connection (242), the pulley connection (242) being cylindrical, the pulley ends (241) and the pulley connection (242) together forming the groove.

6. The adjustable rack device according to claim 4, wherein both pulley ends (241) of the pulley (24) are truncated cone shaped, and the cylindrical diameter of the pulley connection (242) is smaller than the truncated cone diameter of both pulley ends (241).

7. The adjustable rack device according to claim 5, wherein the bracket (12) is provided with a first hook (121a) near the end of the rack body (11) and a second hook (121b) far from the rack body (11) in a direction perpendicular to the rack body (11), the inner diameter of the hook of the first hook (121a) is equal to the diameter of the pulley connecting part (242), the hook of the second hook (121b) is a strip-shaped groove, the strip-shaped groove extends in a direction parallel to the track groove (21) and has a size larger than the diameter of the pulley connecting part (242), and when the rack assembly (1) and the slide assembly (2) are assembled and relatively stationary, the surface of the pulley connecting part (242) is in contact with the end surface of the strip-shaped groove far from the track groove (21).

8. The adjustable rack device according to claim 3, wherein a first interference portion (122a) and a first support portion (123a) are provided under the first hook (121a), and the first support portion (123a) is a protrusion having a slope with respect to a vertical direction, the slope having a self-locking angle with the first engagement portion (22a) of the surface of the stopper (22).

9. The adjustable rack device according to claim 3, wherein a second interference portion (122b) and a second supporting portion (123b) of the L-shaped handle structure are provided under the second hook (121b) and are fixed in a limited manner with a second engaging portion (22b) on the surface of the stop portion (22), and the second engaging portion (22b) is a groove for engaging with the upper and lower end surfaces of the L-shaped handle structure.

10. The adjustable rack device according to claim 1, wherein said stop (22) comprises a guide portion (22c) cooperating with the pulley (24), the guide portion (22c) being a curved surface, the curvature being directed towards the rear back of the track groove (21).

11. A refrigerator comprising storage compartments of different temperature regions, and a door for opening and closing the storage compartments, characterized in that the refrigerator further comprises an adjustable rack device according to any of claims 1-10, which is arranged in at least one storage compartment of the refrigerator.