Adjustable shelf device and refrigerator having the same

Abstract

The application discloses an adjustable shelf device and a refrigerator with the same, wherein the adjustable shelf device comprises a shelf assembly and a slide assembly, the shelf assembly comprises a shelf body and a support, the slide assembly comprises a track slot, a sliding plate and at least two stop positions, the sliding plate is provided with a pulley, the support is provided with a hook on a side facing the track slot, the hook is matched with the pulley, can rotate with the pulley, the central axis of the pulley is used as a rotating shaft, and an interference part matched with the pulley is arranged below the hook, the interference part is provided as a two-section ramp, the two-section ramp is smoothly connected and the included angle is obtuse, and the included angle is provided as an opening structure towards the track slot. The adjustable shelf only needs to lift or pull the shelf body, so that the position of the shelf device can be conveniently adjusted or disassembled, interference feedback is provided in the process, so that the specific position condition is prompted, and the user operation is facilitated.

Description

Technical Field

[0001] This invention relates to an adjustable shelf device and a refrigerator having the same, and more particularly to a shelf with adjustable position and sliding rails and a refrigerator having the same. Background Technology

[0002] Currently, to increase the internal volume ratio of refrigerators, mainstream refrigerators generally have multiple vertically arranged ribs of fixed height on the inside of the refrigerator compartment. Shelves are installed at the height corresponding to the ribs, allowing more food to be stored on each shelf. However, when it is necessary to adjust the position of the shelf, it is often necessary to release the latch of the rear mechanism of the shelf, pull the shelf out along the rib, move the shelf onto the corresponding rib, push it inward, and then latch the rear mechanism to complete the adjustment of the shelf's vertical position. The whole process is quite complicated. In addition, for anti-slip performance, the coefficient of friction between the ribs and the sides of the shelves is usually designed to be relatively high. Therefore, it is necessary to continuously overcome the friction between the ribs and the sides of the shelves during the movement, which is very inconvenient. Summary of the Invention

[0003] One of the objectives of this invention is to provide an adjustable shelf device that can solve the technical problems of complex operation during the up-and-down movement of the shelf and difficulty in knowing the specific buckle position of the bracket.

[0004] One of the objectives of this invention is to provide a refrigerator with an adjustable shelf device.

[0005] To achieve one of the above-mentioned objectives, one embodiment of the present invention provides an adjustable shelf device.

[0006] The device includes a shelf assembly and a slide assembly. The shelf assembly includes a shelf body and a support frame. The slide assembly includes a track groove. After the shelf assembly is assembled into the slide assembly, the track groove is perpendicular to the shelf body. The track groove has at least two stops and a sliding plate. The at least two stops are spaced apart along the track groove. The support frame is selectively limited and fixed to the stops. The sliding plate has a pulley. The support frame has a hook on the side facing the track groove. The hook cooperates with the pulley, is supported by the pulley, and moves along with the pulley. The pulley's central axis rotates, and an interference portion cooperating with the pulley is provided below the hook. The interference portion is configured as a two-section ramp with a smooth transition between the two sections, and the angle between the first and second sections is an obtuse angle. The angle is set as an open structure facing the track groove. The bracket has a first hook near the end of the shelf body in a direction perpendicular to the shelf body. Below the first hook are a first interference portion and a first support portion. The first support portion is a protrusion with a slope in a relatively vertical direction, and the slope has a self-locking angle with the first mating portion of the stop surface.

[0007] As a further improvement of one embodiment of the present invention, the sliding plate is provided with a first pulley corresponding to the first hook.

[0008] As a further improvement of one embodiment of the present invention, at least two of the brackets are respectively fixed on both sides of the shelf body, and at least two slide rail assemblies and pulleys are respectively used in conjunction with the brackets to assemble the shelf assembly.

[0009] As a further improvement of one embodiment of the present invention, the pulley is provided with a groove on its side. When the shelf assembly and the slide assembly are assembled and relatively stationary, the hook engages with the groove and is snapped onto the pulley with its opening facing downward.

[0010] As a further improvement of one embodiment of the present invention, the pulley has two pulley ends connected by a pulley connecting part, the pulley connecting part being cylindrical, and the pulley ends and the pulley connecting part together forming the groove.

[0011] As a further improvement of one embodiment of the present invention, the ends of the two pulleys are frustum-shaped, and the cylindrical diameter of the pulley connection is smaller than the diameter of the frustum at the ends of the two pulleys.

[0012] As a further improvement of one embodiment of the present invention, the bracket is provided with a second hook at a location away from the shelf body in a direction perpendicular to the shelf body. The hook bend of the second hook is a strip-shaped groove. The strip-shaped groove extends in a direction parallel to the track groove and its size is larger than the diameter of the pulley connection part. When the shelf assembly and the slide assembly are assembled and relatively stationary, the surface of the pulley connection part contacts the end face of the strip-shaped groove near the track groove.

[0013] As a further improvement of one embodiment of the present invention, the inner diameter of the first hook bend is equal to the diameter of the pulley connection portion.

[0014] As a further improvement of one embodiment of the present invention, the bracket is provided with a second hook at a location away from the shelf body in a direction perpendicular to the shelf body; a second interference part and a second support part of the L-shaped handle structure are provided below the second hook, which are limited and fixed with the second mating part of the stop surface, and the second mating part is a groove that mates with the upper and lower end faces of the L-shaped handle structure.

[0015] As a further improvement of one embodiment of the present invention, the stop includes a guide portion that cooperates with the pulley. The guide portion is a curved arc surface, and the curvature direction is towards the back side of the track groove.

[0016] To achieve one of the above-mentioned objectives, one embodiment of the present invention provides a refrigerator, including storage compartments with different temperature zones and doors for opening and closing the storage compartments. The refrigerator also includes an adjustable shelf device according to any of the above-mentioned technical solutions, wherein the adjustable shelf device is arranged in at least one storage compartment of the refrigerator.

[0017] Compared with the prior art, the adjustable shelf device and refrigerator of the present invention, through the internal pulleys, can easily realize the adjustment and disassembly of the shelf position by lifting and pushing down operations. At the same time, due to the interference part matching the pulleys, the user can fully know the current status of the device during the adjustment of the shelf position, which is more conducive to user operation and extends the overall service life of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation of an adjustable shelf device for a refrigerator according to one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the adjustable shelf device after assembly according to one embodiment of the present invention.

[0020] Figure 3 This is an exploded view of the sliding component of an adjustable shelf device according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the pulley structure in an adjustable shelf device according to an embodiment of the present invention;

[0022] Figure 5 This is an assembly diagram of the shelf assembly and sliding plate of the adjustable shelf device according to an embodiment of the present invention.

[0023] Figure 6 This is an assembly diagram of the shelf assembly and pulleys of an adjustable shelf device according to an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the adjustable shelf device in a stationary state according to an embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of an adjustable shelf device in a movable state according to an embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram of the adjustable shelf device in a disassembled state according to an embodiment of the present invention. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0028] like Figure 1 As shown, in one embodiment of the present invention, the adjustable shelf device can be installed in a refrigerator.

[0029] The refrigerator includes storage compartments with different temperature zones and doors for opening and closing these compartments. Typically, a refrigerator has a refrigerator compartment with a temperature above 0 degrees Celsius and a freezer compartment with a temperature below 0 degrees Celsius. Adjustable shelving units are arranged in at least one storage compartment of the refrigerator.

[0030] In this embodiment, the adjustable shelf device is installed in the refrigerator compartment to divide the storage space of the refrigerator compartment for convenient storage. Of course, in other embodiments, the adjustable shelf device can also be installed in the freezer compartment or the variable temperature compartment.

[0031] Taking the refrigerator compartment as an example in this embodiment, the adjustable shelf device includes a shelf assembly 1 and a slide assembly 2. The slide assembly 2 is located on the back panel of the refrigerator compartment. The shelf assembly 1, in conjunction with the slide assembly 2, is height-adjustable within the storage space of the refrigerator compartment. There may be one or more shelf assemblies 1, and one or more slide assemblies 2.

[0032] In this embodiment, the slide assembly 2 is arranged vertically in the refrigerator compartment. When the shelf assembly 1 is assembled to the slide assembly 2 and is stationary relative to the slide assembly 2, the shelf body 11 of the shelf assembly 1 is arranged horizontally. When the back panel of the refrigerator compartment is vertically arranged, the shelf body 11 is arranged perpendicular to the back panel. This makes the items placed on the shelf body 11 more stable.

[0033] In this embodiment, the shelf assembly 1 can move on the slide assembly 2, that is, it can move vertically on the refrigerator compartment. Multiple shelf assemblies 1 can be moved to adjust the spacing between them, as well as the spacing between the shelf assembly 1 and the top and bottom plates of the refrigerator compartment, to accommodate more items of different heights.

[0034] like Figure 2 and Figure 3 As shown, in this embodiment, the shelf assembly 1 includes a shelf body 11 and supports 12. There are two or more supports 12, each fixed to one side of the shelf body 11, and the number of slide assemblies 2 that cooperate with the supports 12 is the same. In this embodiment, the supports 12 are fixed to both sides of the shelf body 11, thus maintaining the balance of both sides of the shelf body 11 during the adjustment of the vertical position of the shelf assembly 1.

[0035] In this embodiment, the slide assembly 2 includes a track groove 21, a stop 22, a sliding plate 23, and a pulley 24.

[0036] When assembled into the refrigerator, the track groove 21 is fixed to the back panel of the refrigerator compartment through the screw holes provided on the back side. Preferably, a fixing block 212 is provided at the lower end of the track groove 21. The lower surface of the fixing block 212 is in partial contact with the upper surface of the track groove 21, and the screw holes on it correspond. After the track groove 21 is placed on the surface of the back panel, the fixing block 212 is aligned with the track groove 21, and the two are fixed together to the back panel of the refrigerator compartment with screws to enhance the overall structural strength.

[0037] The stop 22 and the sliding plate 23 are disposed inside the track groove 21, and the sliding plate 23 is slidably connected to the track groove 21. In addition, the pulley 24 is fixed inside the sliding plate 23.

[0038] The track groove 21 is vertically spaced with at least two stops 22, the spacing of which can be controlled according to the needs of the adjustable shelving device, thereby selectively limiting and fixing it to the bracket 12. In this embodiment, the stops 22 are arranged close to the rear back of the track groove 21. Of course, in other embodiments, the stops 22 can also be arranged close to the side of the track groove 21.

[0039] like Figure 3As shown, in this embodiment, when the track groove 21 is arranged vertically, the stop position 22 is disposed within the strip-shaped stop portion 220, which is disposed close to the rear back of the track groove 21. This maintains the stopping effect without affecting the relative movement between the sliding plate 23 and the track groove 21, and also facilitates disassembly and replacement. Of course, other embodiments exist, such as placing the stop portion 220 close to both sides of the inside of the track groove 21, which also achieves the same stopping effect on the bracket 12.

[0040] The stop portion 220 has a groove at its lower end, which can be fixed to the lower end of the track groove 21, thereby closing the lower end of the track groove 21 and limiting the movement of the sliding plate 23 inside the track groove 21. Furthermore, slide rails 211 are arranged on both sides inside the track groove 21. Of course, in other embodiments, such as arranging stop portions 22 on both sides inside the track groove 21, the slide rails 211 can be fixed to the rear back of the track groove 21.

[0041] In this embodiment, the slide rail 211 includes an inner rail 211a and an outer rail 211b, which are slidably connected by ball bearings. The inner rail 211a is fixed to the sliding plate 23, and the outer rail 211b is fixedly connected to the inner sidewall of the track groove 21.

[0042] When the sliding plate 23 moves up and down under force, it can drive the inner rail 211a and the ball bearings between it and the outer rail 211b to move relative to the outer rail 211b and its fixed track groove 21.

[0043] like Figures 4 to 6 As shown, in this embodiment, the sliding plate 23 is provided with a pulley 24 that is snapped into the hook 121 on the bracket 12. The two ends of the pulley 24 are fixed in the groove of the sliding plate 23. The pulley 24 has a groove on its side. When the shelf assembly 1 and the slide assembly 2 are assembled and relatively stationary, the hook 121 cooperates with the groove and snaps into the pulley 24 with the opening facing downward. After snapping, the pulley 24 provides an upward support force to the hook 121, thereby supporting the bracket 12.

[0044] Furthermore, the pulley 24 can rotate around its central axis. When the shelf assembly 1 and the slide assembly 2 are assembled and the shelf assembly 1 and the track groove 21 move vertically relative to each other, the cooperative structure of the pulley 24 and the hook 121 can provide vertical support force for the sliding plate 23.

[0045] like Figure 4As shown, the pulley structure includes pulley ends 241 at both ends and a pulley connecting portion 242 connecting the two pulley ends 241. Both the pulley ends 241 and the pulley connecting portion 242 have circular cross-sections, with the radius of the connecting portion 242 being smaller than that of the pulley ends 241. It is understood that the shapes and sizes of the two pulley ends 241 can be different, allowing the pulley ends 241 and the connecting portion 242 to form any shape and size that can accommodate the bracket hook 121, achieving the desired technical effect. Of course, the pulley ends 241 and the connecting portion 242 can be integrally formed, or they can be separate components formed by corresponding protrusions or through holes, using tenon joints or snap-fit ​​methods.

[0046] In this embodiment, the pulley end 241 is generally shaped like a frustum. Each pulley 24 has two pulley ends 241. The edges of the frustum are treated with chamfering and other processes. Thus, when the pulley 24 is fixed to the hook 121 on the bracket 12, the side of the frustum and the chamfer form a guide structure, which makes it easier to fix the hook 121 to the groove on the pulley 24. The lower surface of the frustum faces outward, and the two upper surfaces face each other and connect with the pulley connecting part 242. The pulley connecting part 242 is a cylinder with a bottom diameter smaller than the diameter of the upper surface of the frustum. The side of the cylinder and the upper surfaces of the left and right frustums together form a groove. The width of the groove, that is, the height of the cylinder of the pulley connecting part 242, is equal to the center thickness of the hook 121 on the bracket 12, so that the hook 121 can be fixed to the pulley 24.

[0047] like Figure 5 and Figure 6 As shown, in this embodiment, when the sliding plate 23 is fixed in the vertical direction, two pulleys 24 are provided in the longitudinal direction inside it. After the sliding plate 23 is fixed to the bracket 12 by the pulleys 24, the first pulley 24a near the support surface of the shelf body 11 cooperates with the first hook 121a on the bracket 12, and the second pulley 24b away from the support surface 11 of the shelf body cooperates with the second hook 121b on the bracket 12. In order to enable the bracket 12 to rotate around the central axis of the first pulley 24a, it can be understood that the inner diameter of the hook bend of the first hook 121a is equal to the diameter of the pulley connection part 242, and the hook bend of the second hook 121b is a strip-shaped groove. The strip-shaped groove extends in the vertical direction and its size is larger than the diameter of the pulley connection part 242, so that the second pulley 24b can move in the horizontal direction inside it.

[0048] Furthermore, when the shelf assembly 1 and the slide assembly 2 are assembled and relatively stationary, the surface of the pulley connection part 242 contacts the end face of the strip groove away from the track groove 21. After the shelf body 11 is lifted upward and the shelf assembly 2 rotates a certain angle around the central axis of the first pulley 24a, the pulley connection part 242 gradually moves from the end face of the strip groove away from the track groove 21 to the end face of the strip groove close to the track groove 21.

[0049] In this embodiment, in addition to the hook structure 121, the bracket 12 also includes an interference portion 122 located in the downward extension direction of the hook 121 and a support portion 123 connected to the interference portion 122. The interference portion 122 is a two-section ramp structure with a smooth transition and an obtuse angle. The included angle is set as an opening structure in the direction of the track groove 21. That is, the first section of the ramp 1221 is connected to the hook 121 and extends in the vertical direction away from the track groove 21, and the second section of the ramp 1222 is connected to the support portion 123 and extends in the horizontal direction away from the shelf body 11.

[0050] Furthermore, the support part 123 mates with the corresponding structure on the stop position 22. The structure on the bracket 12 is integrally formed.

[0051] like Figure 6 As shown, in order to cooperate with at least two pulleys 24 and at least two corresponding hooks 121, in this embodiment, the first hook 121a is provided with a first interference portion 122a and a first support portion 123a, and the second hook 121b is provided with a second interference portion 122b and a second support portion 123b. The first section of the 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. Thus, stronger interference feedback can be provided without affecting the function of the support portion connected to it, while also providing excellent guiding function. Of course, the pulleys 24 and their corresponding hooks 121, interference portions 122, and support portions 123 can also be provided in three or more sets, as long as the structure is sufficient to allow the bracket to rotate around the center of the first pulley 24.

[0052] In this embodiment, the assembly of the shelf assembly 1 is completed by the cooperation of the pulleys 24a and 24b inside the sliding plate 23 in the slide assembly 2 with the two hooks 121a and 121b on the bracket 12. It can be understood that after the shelf assembly 1 is assembled on the slide assembly 2 and reaches a relatively stationary state, the track groove 21 is set perpendicular to the shelf body 11. The shelf body 11 is fixedly set relative to the sliding plate 23 through the bracket 12, and the sliding plate 23 is slidably assembled on the track groove 21.

[0053] like Figure 7In the static state of the adjustable shelf device, the second support part 123b is preferably an L-shaped handle structure, which is limited and fixed with the second mating part 22b in the stop position 22 provided inside the track groove 21. Preferably, the second mating part 22b is a groove, which is used to mate with the upper and lower end faces of the L-shaped handle structure, and the cross-section is L-shaped. At the same time, in this embodiment, the spacing of the stop positions 22 is set such that when the bracket 12 is fixed on the stop position 22, there are two sets of stop positions 22 between the first support part 123a and the second support part 123b.

[0054] Furthermore, the first support portion 123a is a protrusion with an inclined surface that is relatively inclined to the vertical direction. This inclined surface has a self-locking angle with the first mating portion 22a in the stop position 22. This self-locking angle can provide frictional force to the shelf assembly 1 in the unloaded state so that it does not move relative to the strip stop portion 220. On the other hand, this mating structure can reduce the wear of the second support portion 123b and the second mating portion 22b during use to a certain extent.

[0055] In a static state, the second mating part 22b on the stop 22 is fixed to the second support part 123b on the bracket 12. At this time, there is surface contact between the stop 22 and the lower end face of the second support part 123b. At the same time, the first support part 123a and the first mating part 22a are self-locked. When the shelf body 11 supports the load, due to the lever principle, the first support part 123a and the second support part 123b will respectively give the first mating part 22a and the second mating part 22b a horizontal pressure towards the inside of the stop 22. Correspondingly, the first mating part 22a and the second mating part 22b will respectively provide support forces in opposite directions. At this time, since there is a coefficient of friction between the support part 123 and the stop 22, the friction force on the contact surface increases, thereby making the overall structure of the adjustable shelf device stable.

[0056] In a stationary state, if the shelf body 11 is lifted upwards, the shelf assembly 1 will rotate a certain angle around the central axis of the first pulley 24a, thus switching the adjustable shelf device to a movable state, i.e., as shown in the image. Figure 8 As shown.

[0057] At this point, the first support part 123a disengages from the first mating part 22a, and the second support part 123b disengages from the second mating part 22b, thereby releasing the self-locking and limiting structure. After disengagement, the second pulley 24b is engaged with the side of the second hook 121b away from the track groove 21 and close to the track groove 21. Furthermore, by lifting or pushing the shelf body 11 vertically, the sliding plate 23 fixed to the bracket 12 can move up and down vertically.

[0058] Understandably, during the process of the adjustable shelf device switching from a moving state to a stationary state, due to the closed design of the slide assembly 2, the user cannot see the positional relationship between the first mating part 22a and the second mating part 22b in the internal stop position 22, and therefore it is difficult to accurately limit the corresponding support part 123. Therefore, the stop position 22 is also provided with a guide part 22c that mates with the second support part 123b. The guide part 22c is located between the first mating part 22a and the second mating part 22b. In this embodiment, the outer edge of the guide portion 22c is an arc surface, which is curved towards the rear back of the track groove 21. That is, when the strip-shaped stop portion 220 is arranged in the vertical direction, the center of the arc is located inside the strip-shaped stop portion 220 and diagonally above the guide portion 22c. When the second support portion 123b contacts the first mating portion 22a or the guide portion 22c, the curved surface of the guide portion 22c can make the second support portion 123b slide downward, thereby limiting and fixing it with the second mating portion 22b located below the guide portion 22c.

[0059] In this embodiment, when the adjustable shelf is in a movable state, the user lifts the shelf assembly 1 to move it vertically upward relative to the slide rail assembly 2. At this time, the bracket 12 provides an upward support force to the pulley 24 inside it through the hook tip of the hook 121, thereby driving the sliding plate 23 and the inner rail 211a of the slide rail 211 to which it is fixed to move upward relative to the outer rail 211b and the track groove 21 of the slide rail 211. Similarly, when moving downward, the user pushes or pulls the shelf assembly 1 downward. At this time, the hook bend of the hook 121 provides a downward support force to the pulley 24, thereby driving the sliding plate 23 and the inner rail 211a to move downward relative to the outer rail 211b and the track groove 21.

[0060] In the moving state, the edge of the shelf body 11 near the track groove 21 is further lifted, thereby disengaging the first hook 121a from the first pulley 24a and the second hook 121b from the second pulley 24b. At this time, the adjustable shelf device switches to the disassembled state, i.e. Figure 9 As shown.

[0061] After the pulley 24 disengages from the hook 121, it continues to lift the shelf assembly 1. The pulley 24 moves downward relative to the bracket 12 and collides mechanically with the interference part 122 located below the hook 121. More specifically, it collides with the second ramp 1222, forming interference feedback, so that the user can understand the position of the pulley 24 and the bracket 12 at this time. Then, the shelf assembly 1 is pulled out horizontally, which will disengage the shelf assembly 1 from the slide assembly 2.

[0062] When pulled out horizontally, pulley 24 moves relative to bracket 12 along the second ramp 1222 of interference portion 122. Correspondingly, during installation, by sliding pulley 24 relative to bracket 12 along the second ramp 1222 of interference portion 122 towards shelf body 11, support portion 123 can be sent into slide assembly 2. Further, pulley 24 collides mechanically with interference portion 122, more specifically, with first ramp 1221, forming interference feedback. At this time, shelf assembly 1 is slowly lowered along first ramp 1221, and finally pulley 24 is fixed in place by hook 121, thus completing the installation of shelf assembly 1 and slide assembly 2.

[0063] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0064] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. An adjustable shelf device, comprising a shelf assembly (1) and a slide assembly (2), The shelf assembly (1) includes a shelf body (11) and a support (12). The slide assembly (2) includes a track groove (21). After the shelf assembly (1) is assembled into the slide assembly (2), the track groove (21) is perpendicular to the shelf body (11). Its features are, The track groove (21) is provided with at least two stop positions (22) and a sliding plate (23). The at least two stops (22) are arranged at intervals along the direction of the track groove (21), and the bracket (12) can be selectively limited and fixed to the stops (22). The sliding plate (23) is provided with a pulley (24), and the bracket (12) is provided with a hook (121) on the side facing the track groove (21). The hook (121) cooperates with the pulley (24), is supported by the pulley (24), and can rotate together with the pulley (24) about the central axis of the pulley (24). The hook (121) is provided with an interference part (122) below it that cooperates with the pulley (24). The interference section (122) is configured as a two-section ramp with a smooth transition between the two sections. The angle between the first section ramp (1221) and the second section ramp (1222) is an obtuse angle, and the angle is configured as an opening structure in the direction of the track groove (21). The bracket (12) has a first hook (121a) near the end of the shelf body (11) in a direction perpendicular to the shelf body (11); a first interference part (122a) and a first support part (123a) are provided below the first hook (121a); ​​the first support part (123a) is a protrusion with a slope in a relatively vertical direction, and the slope has a self-locking angle with the first mating part (22a) on the surface of the stop (22); The bracket (12) has a second hook (121b) located away from the shelf body (11) in a direction perpendicular to the shelf body (11); a second interference part (122b) and a second support part (123b) of the L-shaped handle structure are provided below the second hook (121b), which are limited and fixed with the second mating part (22b) on the surface of the stop (22), and the second mating part (22b) is a groove that mates with the upper and lower end faces of the L-shaped handle structure.

2. The adjustable shelf device according to claim 1, characterized in that, The sliding plate (23) is provided with a first pulley (24a) corresponding to the first hook (121a).

3. The adjustable shelf device according to claim 1, characterized in that, At least two of the brackets (12) are respectively fixed to both sides of the shelf body (11); At least two slide rail assemblies (2) and pulleys (24) are respectively used in conjunction with the bracket (12) to assemble the shelf assembly (1).

4. The adjustable shelf device according to claim 1, characterized in that, The pulley (24) has a groove on its side. When the shelf assembly (1) and the slide assembly (2) are assembled and relatively stationary, the hook (121) engages with the groove and is snapped onto the pulley (24) with its opening facing downward.

5. The adjustable shelf device according to claim 4, characterized in that, The pulley (24) has two pulley ends (241), which are connected by a pulley connecting part (242). The pulley connecting part (242) is cylindrical, and the pulley ends (241) and the pulley connecting part (242) together form the groove.

6. The adjustable shelf device according to claim 4, characterized in that, The pulleys (24) have frustum-shaped ends (241) at both ends, and the diameter of the cylinder of the pulley connection part (242) is smaller than the diameter of the frustum at both ends (241).

7. The adjustable shelf device according to claim 5, characterized in that, The bracket (12) has a second hook (121b) located away from the shelf body (11) in a direction perpendicular to the shelf body (11). The hook (121b) has a strip-shaped groove at the bend. The strip-shaped groove extends in a direction parallel to the track groove (21) and its size is larger than the diameter of the pulley connection part (242). When the shelf assembly (1) and the slide assembly (2) are assembled and relatively stationary, the surface of the pulley connection part (242) contacts the end face of the strip-shaped groove away from the track groove (21).

8. The adjustable shelf device according to claim 5, characterized in that, The inner diameter of the bend of the first hook (121a) is equal to the diameter of the pulley connection (242).

9. The adjustable shelf device according to claim 1, characterized in that, The bracket (12) has a second hook (121b) located away from the shelf body (11) in a direction perpendicular to the shelf body (11); a second interference part (122b) and a second support part (123b) of the L-shaped handle structure are provided below the second hook (121b), which are limited and fixed with the second mating part (22b) on the surface of the stop (22), and the second mating part (22b) is a groove that mates with the upper and lower end faces of the L-shaped handle structure.

10. The adjustable shelf device according to claim 1, characterized in that, The stop (22) includes a guide (22c) that cooperates with the pulley (24). The guide (22c) is a curved arc surface with the curvature direction facing the back of the track groove (21).

11. A refrigerator comprising storage compartments with different temperature zones, and doors for opening and closing the storage compartments, characterized in that, The refrigerator further includes an adjustable shelf device as described in any one of claims 1-10, the adjustable shelf device being arranged in at least one storage compartment of the refrigerator.

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