A shelf assembly and a refrigerator

Abstract

The utility model provides a kind of shelf assembly and refrigerator, it is related to refrigeration equipment technical field, shelf assembly includes: shelf body and be located in the telescopic shaft adjusting mechanism of shelf body, telescopic telescopic shaft adjusting mechanism includes adjusting handle, transmission and two support telescopic shaft, telescopic shaft is movably arranged in shelf body, and can linearly reciprocate relative to shelf body;Wherein, adjusting handle is connected with transmission, transmission is connected with two support telescopic shaft, adjusting handle is driven two support telescopic shaft synchronous mutual approach or mutual away movement by transmission;When adjusting handle occurs rotation, transmission converts the rotation of adjusting handle into two opposite direction linear motion, to drive two support telescopic shaft synchronous mutual approach or mutual away. User only needs to rotate adjusting handle this action to complete the installation or disassembly of shelf assembly, one-handed operation can be realized, human-computer interaction is strong, assembly efficiency is high, user experience is good.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to shelf components and refrigerators. Background Technology

[0002] As refrigerator consumption upgrades, users have higher demands for the user experience. Shelves are one of the interior components of a refrigerator. Shelves are detachably mounted to the inner wall of the refrigerator. When taller items need to be placed, users remove the shelves from the refrigerator. When more and shorter items need to be placed, users attach the shelves to the refrigerator.

[0003] However, the current shelving is extremely inconvenient to disassemble and install, requiring users to perform excessive movements to make adjustments, which greatly hinders human-computer interaction, results in low assembly efficiency, and leads to a poor user experience.

[0004] In view of this, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the issues of poor user experience and low assembly efficiency, the purpose of this utility model is to provide a shelf component and refrigerator that features strong human-computer interaction, high assembly efficiency, and a good user experience.

[0006] To achieve the above objectives, the present invention employs the following technical means: In a first aspect, this utility model provides a shelf assembly, comprising: a shelf body and a telescopic shaft adjustment mechanism disposed on the shelf body, the telescopic shaft adjustment mechanism comprising an adjustment handle, a transmission device and two supporting telescopic shafts, the telescopic shafts being movably disposed within the shelf body and capable of linear reciprocating motion relative to the shelf body; The adjusting handle is connected to the transmission device, which is connected to the two supporting telescopic shafts. The adjusting handle drives the two supporting telescopic shafts to move synchronously closer to or further away from each other through the transmission device.

[0007] Optionally, it includes two telescopic shaft adjustment mechanisms, and a transmission link connects the two telescopic shaft adjustment mechanisms.

[0008] Optionally, the transmission device includes a balance wheel and two telescopic shaft swing arms, with the balance wheel connected to each of the two telescopic shaft swing arms respectively; when the balance wheel rotates clockwise, the two telescopic shaft swing arms move away from each other; when the balance wheel moves clockwise, the two telescopic shaft swing arms move closer to each other.

[0009] Optionally, two balance wheel slots are provided at opposite ends of the balance wheel, and the two telescopic shafts are provided with two shafts, which are engaged in the two balance wheel slots.

[0010] Optionally, the adjustment handle includes a handle base, a handle fixing shaft, and two handle connecting posts. The handle fixing shaft is located at the center of the handle base. The balance wheel has a balance wheel fixing hole, and the handle fixing shaft passes through the balance wheel fixing hole. The two handle connecting posts are respectively inserted into the two balance wheel slots, so that the balance wheel rotates relative to the balance wheel about the handle fixing shaft as an axis.

[0011] Optionally, it also includes a shelf cover plate, which covers the shelf body; the shelf cover plate has a cover plate connecting hole and two cover plate sliding grooves, the handle fixing shaft passes through the cover plate connecting hole, and is fastened through the through hole of the handle fixing shaft, the cover plate connecting hole and the swing wheel fixing hole; the two handle connecting posts pass through the two cover plate sliding grooves respectively.

[0012] Optionally, the shelf cover is further provided with guide plates and / or limiting plates. There are multiple guide plates, which are arranged in two rows along the shelf cover. The telescopic shaft swing rod is located between the two rows of guide plates. The telescopic shaft swing arm is sleeved on the limiting plate and can move back and forth linearly relative to the limiting plate.

[0013] Optionally, the two ends of the telescopic shaft swing arm are a mounting end and a free end, respectively. The mounting end is connected to the supporting telescopic shaft, and an elastic element is sleeved on the free end. One end of the elastic element is connected to the limiting plate, and the other end is connected to the telescopic shaft swing arm.

[0014] Optionally, a clearance hole is provided on the side wall of the shelf cover, and the transmission connecting rod passes through the clearance hole to connect with the telescopic shaft rocker arm; The transmission device also includes a telescopic connecting rod sleeve, which covers the transmission connecting rod.

[0015] A second aspect of this utility model provides a refrigerator, characterized in that it includes any of the shelf assemblies described above.

[0016] Compared with the prior art, this utility model brings the following technical effects: The shelf assembly of this utility model consists of an adjustment handle, a transmission device, and two supporting telescopic shafts. When the adjustment handle is rotated, the transmission device converts the rotation of the adjustment handle into two linear movements in opposite directions, thereby driving the two supporting telescopic shafts to move closer or further apart synchronously. This allows the two supporting telescopic shafts to simultaneously disengage from or insert into the insertion holes on the side wall of the refrigerator. Users only need to rotate the adjustment handle to complete the installation or disassembly of the shelf assembly. This single-handed operation provides a strong sense of human-machine interaction, high assembly efficiency, and a good user experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 The diagram shows a structural schematic of a shelf assembly according to some embodiments of the present invention; Figure 2 Structural diagrams of shelf assemblies according to some embodiments of the present invention are shown; Figure 3 The following is a schematic diagram of the structure of the telescopic shaft adjustment mechanism according to some embodiments of the present invention; Figure 4 It shows Figure 3 A magnified view of part A; Figure 5 An exploded structural diagram of a shelf assembly according to some embodiments of the present invention is shown; Figure 6 An exploded view of the adjusting handle, balance wheel, and washer screw of some embodiments of the present invention is shown; Figure 7 The diagram shows a structural schematic of a modified shelf according to some embodiments of the present invention; Figure 8 A schematic diagram of the rear structure of a shelf assembly according to some embodiments of the present invention is shown; Figure 9 A front structural schematic diagram of a shelf assembly according to some embodiments of the present invention is shown; Figure 10 Structural diagrams of refrigerators according to some embodiments of the present invention are shown; Figure 11 An exploded structural diagram of a refrigerator according to some embodiments of the present invention is shown; Figure 12 A partially enlarged schematic diagram of part B of this utility model is shown.

[0019] Explanation of key component symbols: 100-Shelf assembly; 10-Shelf body; 20-Telescopic shaft adjustment mechanism; 21-Adjusting handle; 211-Handle connecting column; 212-Handle fixing shaft; 22-Support telescopic shaft; 23-Transmission device; 231-Swing wheel; 2311-Swing wheel groove; 2312-Swing wheel fixing hole; 232-Telescopic shaft swing rod; 2321-Swing rod shaft; 233-Washed screw; 234-Elastic element; 235-Transmission connecting rod; 236-Telescopic connecting rod sleeve; 30-Shelf cover plate; 31-Cover plate slide groove; 32-Cover plate connecting hole; 33-Guide plate; 34-Limiting plate; 35-Allowing hole; 200-Box body; 300-Mounting shelf; 310-Mounting hole; 400-Fixing slot cover; 410-Hinge; 420-Lid; 430-Plug. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0022] Please see Figure 1 and Figure 2 The present invention provides a shelf assembly 100, including: a shelf body 10 and a telescopic shaft adjustment mechanism 20 disposed on the shelf body 10. The telescopic shaft adjustment mechanism 20 includes an adjustment handle 21, a transmission device 23 and two supporting telescopic shafts 22. The telescopic shafts are movably disposed within the shelf body 10 and can move linearly back and forth relative to the shelf body 10. The adjusting handle 21 is connected to the transmission device 23, and the transmission device 23 is connected to two supporting telescopic shafts 22. The adjusting handle 21 drives the two supporting telescopic shafts 22 to move synchronously closer to or further away from each other through the transmission device 23.

[0023] The shelf assembly 100 of this utility model consists of an adjustment handle 21, a transmission device 23, and two supporting telescopic shafts 22, configured as a telescopic shaft adjustment mechanism 20. When the adjustment handle 21 is rotated, the transmission device 23 converts the rotation of the adjustment handle 21 into two linear movements in opposite directions, thereby driving the two supporting telescopic shafts 22 to move closer or further away from each other synchronously, so that the two supporting telescopic shafts 22 can simultaneously disengage from or insert into the sockets on the side wall of the refrigerator. Users only need to rotate the adjustment handle 21 to complete the installation or disassembly of the shelf assembly 100, which has a strong human-computer interaction, high assembly efficiency, and good user experience.

[0024] The shelf assembly 100 is used in the refrigerator compartment. The shelf body 10 is horizontally oriented and used for placing items. The telescopic shaft adjustment device is used to fix the shelf body 10 to the side walls of the refrigerator, or to detach the shelf body 10 from the side walls of the refrigerator.

[0025] The refrigerator has a socket on its side wall for inserting the telescopic support shaft 22. The shelf body 10 has a cavity for accommodating the telescopic support shaft 22, and the cavity has a through hole. The through hole and the socket are located on the movement path of the telescopic support shaft 22.

[0026] Specifically, when the adjusting handle 21 is rotated clockwise, the adjusting handle 21 drives the two supporting telescopic shafts 22 to move away from each other through the transmission device 23, so that the two supporting telescopic shafts 22 can be inserted into the insertion holes on the side wall of the refrigerator. When the adjusting handle 21 is rotated counterclockwise, the adjusting handle 21 drives the two supporting telescopic shafts 22 to move closer to each other through the transmission device 23, so that the two supporting telescopic shafts 22 disengage from the insertion holes on the side wall of the refrigerator and return to their original positions within the shelf body 10.

[0027] It should be noted that the adjusting handle 21 needs to be rotated to a sufficient angle for the support telescopic shaft 22 to be inserted into or disengaged from the socket.

[0028] In one specific embodiment, the shelf assembly 100 includes two telescopic shaft adjustment mechanisms 20, and a transmission link 235 is connected between the two telescopic shaft adjustment mechanisms 20.

[0029] One telescopic shaft adjustment mechanism 20 is located at one end of the shelf body 10, and the other telescopic shaft adjustment mechanism 20 is located at the other end of the shelf body 10. The two telescopic shaft adjustment mechanisms 20 ensure the stability of the shelf body 10 during installation. Furthermore, this structure ensures that the front and rear control components of the shelf assembly 100 are identical, eliminating the need for a foolproof design, solving the problem of employees installing components backwards during assembly, reducing production time, increasing production efficiency, and improving the commonality rate of parts.

[0030] The transmission link 235 can synchronously transmit the power of one telescopic shaft adjustment mechanism 20 to another telescopic shaft adjustment mechanism 20. This allows the two supporting telescopic shafts 22 connected to one telescopic shaft adjustment mechanism 20 to move synchronously with the other. In other words, by rotating the adjustment handle 21, the user can simultaneously control all four supporting telescopic shafts 22 to extend or retract synchronously from the shelf body 10, further simplifying user operation, increasing assembly efficiency, and improving user experience. Furthermore, this embodiment employs a mechanical synchronization scheme using the transmission link 235, which offers strong stability.

[0031] Since the four supporting telescopic shafts 22 are fixed in the corresponding cabinet sockets, the shelf assembly 100 will not move inside the refrigerator after the precise matching dimensions are designed. This solves the problem of shelf shaking when the refrigerator leaves the factory, further reduces the fixed cost of the shelf assembly 100, lowers the overall cost of the refrigerator, and improves market competitiveness.

[0032] To maintain the neat and aesthetically pleasing appearance of the shelf assembly 100, a telescopic connecting rod sleeve 236 is provided on the outer cover of the transmission assembly. When the shelf is placed at a high position on the top of the refrigerator and the adjustment handle 21 cannot be reached, the telescopic connecting rod sleeve 236 can be removed as needed, and the transmission linkage 235 can be directly moved to achieve the same effect. That is, the control support telescopic shaft 22 can be used to simultaneously extend or retract the shelf body 10.

[0033] Please see Figure 3 In one specific embodiment, the transmission device 23 includes a balance wheel 231 and two telescopic shaft swing rods 232. The balance wheel 231 is connected to the two telescopic shaft swing rods 232 respectively. When the balance wheel 231 rotates clockwise, the two telescopic shaft swing rods 232 move away from each other. When the balance wheel 231 moves clockwise, the two telescopic shaft swing rods 232 move closer to each other.

[0034] The balance wheel 231 can rotate around its own center, and the telescopic shafts 232 are located at both ends of the balance wheel 231 in the radial direction. The rotation of the adjustment handle 21 is synchronized through the balance wheel 231, and the rotation of the balance wheel 231 is converted into two linear motions in opposite directions through the two telescopic shafts 232. A relatively complex transmission can be achieved with these three parts: the balance wheel 231 and the two telescopic shafts 232, and the structure is simple and compact.

[0035] Please see Figure 4 In one specific embodiment, two balance wheel grooves 2311 are provided at opposite ends of the balance wheel 231, and two support telescopic shafts 22 are provided with two swing arm shafts 2321, which are engaged in the two balance wheel grooves 2311.

[0036] By locking the balance rod shaft 2321 into the balance wheel groove 2311, the balance wheel 231 and the telescopic shaft balance rod 232 are connected for transmission, and the rotation of the balance wheel 231 is converted into the linear reciprocating motion of the balance rod.

[0037] Please see Figure 5 and Figure 6 In one specific embodiment, the adjusting handle 21 includes a handle base, a handle fixing shaft 212, and two handle connecting posts 211. The handle fixing shaft 212 is located at the center of the handle base. The balance wheel 231 has a balance wheel fixing hole 2312, through which the handle fixing shaft 212 passes. The two handle connecting posts 211 are respectively inserted into the two balance wheel slots 2311, so that the balance wheel 231 rotates relative to the balance wheel 231 with the handle fixing shaft 212 as the axis.

[0038] The handle fixing shaft 212 restricts the balance wheel 231 from rotating relative to the adjusting handle 21 about the handle fixing shaft 212. The handle connecting post 211 passes through the balance wheel groove 2311 to realize the transmission of the adjusting handle 21 to the balance wheel 231. In this way, the balance wheel 231 is assembled with the adjusting handle 21, and the operation of the balance wheel 231 is stable and reliable.

[0039] Please see Figure 5 and Figure 7 In one specific embodiment, it also includes a shelf cover plate 30, which covers the shelf body 10; the shelf cover plate 30 has a cover plate connecting hole 32 and two cover plate sliding grooves 31, the handle fixing shaft 212 passes through the cover plate connecting hole 32, and is fastened through the through hole of the handle fixing shaft 212, the cover plate connecting hole 32 and the balance wheel fixing hole 2312; the two handle connecting posts 211 pass through the two cover plate sliding grooves 31 respectively.

[0040] The handle fixing shaft 212, the cover plate connecting hole 32, and the balance wheel fixing hole 2312 are all rectangular oblong holes to prevent slippage and inability to adjust. The length of the cover plate slide groove 31 limits the movement distance of the supporting telescopic shaft 22. The fastener is a washer screw 233. The washer screw 233 simplifies assembly and improves assembly efficiency.

[0041] The base of the adjusting handle 21 is located outside the shelf cover 30 for easy user operation. The balance wheel 231 and the telescopic shaft swing rod 232 are located inside the shelf cover 30 and protected by the shelf cover 30, resulting in a neat and aesthetically pleasing appearance and a long service life.

[0042] In one specific embodiment, the shelf cover plate 30 is also provided with guide plates 33 and limiting plates 34. There are multiple guide plates 33, which are arranged in two rows along the shelf cover plate 30. The telescopic shaft swing rod 232 is located between the two rows of guide plates 33. The telescopic shaft swing rod 232 is sleeved on the limiting plate 34 and can move back and forth linearly relative to the limiting plate 34.

[0043] Each telescopic shaft rocker arm 232 is equipped with a guide plate 33 and a limiting plate 34. A transmission device 23 has two telescopic shaft rocker arms 232, thus requiring two sets of guide plates 33 and limiting plates 34. The guide plates 33 and limiting plates 34 work in coordination to ensure that when the telescopic shaft rocker arm 232 deviates, there are multiple fulcrums to correct its direction of movement, preventing stress concentration and deformation, thereby extending its service life.

[0044] In other alternative configurations, the shelf cover 30 may only have a guide plate 33, or the shelf cover 30 may only have a limiting plate 34. This also achieves the same guiding function for the telescopic shaft swing arm 232.

[0045] Please see Figure 1 , Figure 2 , Figure 3 and Figure 7 In one specific embodiment, the two ends of the telescopic shaft swing arm 232 are an installation end and a free end, respectively. The installation end is connected to the supporting telescopic shaft 22, and the free end is fitted with an elastic element 234. One end of the elastic element 234 is connected to the limiting plate 34, and the other end is connected to the telescopic shaft swing arm 232.

[0046] Specifically, the elastic element 234 is a telescopic spring. When the user does not control the adjustment handle 21, the telescopic spring tends to drive the telescopic shaft lever 232 to move outward, so as to provide a continuous elastic force to push the telescopic shaft lever 232 to push the support telescopic shaft 22 into the insertion hole on the side wall of the refrigerator, and the assembly of the shelf assembly 100 is stable and reliable.

[0047] Please see Figure 5 and Figure 7 In one specific embodiment, a clearance hole 35 is provided on the side wall of the shelf cover plate 30, and the transmission connecting rod 235 passes through the clearance hole 35 and is connected to the telescopic shaft swing rod 232; the transmission device 23 also includes a telescopic connecting rod sleeve 236, which covers the transmission connecting rod 235.

[0048] The width of the clearance hole 35 is set to be wider than the width of the transmission link 235 so that the transmission link 235 can move within the clearance hole 35. Furthermore, the width of the clearance hole 35 also determines the range of motion of the transmission link, thereby defining the range of motion of the telescopic shaft rocker arm 232 and the supporting telescopic shaft 22. The telescopic connecting rod sleeve 236 is fitted onto the transmission link 235, which can prevent external interference with the operation of the transmission link 235 and improve the operational stability of the transmission link 235.

[0049] It should be noted that the transmission link 235 is connected to the two telescopic shaft swing arms 232 that are closer together in the two telescopic shaft adjustment mechanisms 20.

[0050] One of the transmission devices 23 has two telescopic shaft swing arms 232 and a balance wheel 231. When one of the telescopic shaft swing arms 232 is driven by the transmission link 235, the telescopic shaft swing arm 232 drives the balance wheel 231 to rotate, and the balance wheel 231 then drives the other telescopic shaft swing arm 232 to move in the opposite direction, thereby realizing that the two telescopic shaft swing arms 232 drive the supporting telescopic shaft 22 to move closer to each other or further away from each other.

[0051] For example, when the user pulls the transmission link 235 outward, the support telescopic shaft 22 inserts into the socket on the side wall of the refrigerator. When the user pushes the transmission link 235 inward, the support telescopic shaft 22 disengages from the socket on the side wall of the refrigerator.

[0052] Please see Figure 8 and Figure 9 The transmission linkage 235 is located on the back of the shelf body 10, with the back of the shelf body 10 facing downwards, facilitating the user's assembly of taller shelf components 100. The adjustment handle 21 is located on the front of the shelf body 10, with the front of the shelf body 10 facing upwards, facilitating the user's assembly of shorter shelf components 100. In summary, by setting the adjustment handle 21 and the transmission linkage 235, the user can choose to use either the adjustment handle 21 or the transmission linkage 235 to assemble the shelf component 100 according to its height, resulting in high assembly efficiency and a good user experience.

[0053] Please see Figures 10-12 A second aspect of this utility model provides a refrigerator, including the shelf assembly 100 of any of the above embodiments.

[0054] The refrigerator of this utility model, by adopting the shelf assembly 100 of any of the above embodiments, sets the telescopic shaft adjustment mechanism 20 as an adjustment handle 21, a transmission device 23, and two supporting telescopic shafts 22. When the adjustment handle 21 is rotated, the transmission device 23 converts the rotation of the adjustment handle 21 into two linear movements in opposite directions, thereby driving the two supporting telescopic shafts 22 to move closer or further away from each other synchronously, so that the two supporting telescopic shafts 22 can simultaneously disengage from or insert into the insertion holes on the side wall of the refrigerator. The user only needs to rotate the adjustment handle 21 to complete the installation or disassembly of the shelf assembly 100, and the refrigerator assembly efficiency is high.

[0055] Specifically, the refrigerator has a cabinet 200, and a plurality of shelf assemblies 100 are arranged at height intervals in the refrigerator compartment of the cabinet 200. The shelf assemblies 100 are all mounted on the two side walls of the cabinet 200.

[0056] Furthermore, each inner sidewall of the housing 200 is provided with two mounting shelves 300, which are spaced apart along the depth direction of the housing 200. Each mounting shelf 300 has multiple mounting holes 310 along its height. The support telescopic shaft of the shelf assembly 100 is inserted into the mounting holes 310 at different heights to fix the shelf assembly 100 at different heights.

[0057] In one specific embodiment, the outer wall of the refrigerator is also provided with a plurality of fixing groove covers 400, and the fixing groove covers 400 are provided in a one-to-one correspondence with the mounting holes 310.

[0058] When the shelf assembly 100 is installed inside the refrigerator, the support telescopic shaft 22 of the shelf assembly 100 is inside the refrigerator's insertion holes, and the fixing slot cover 400 is opened by being pushed out by the support shafts at the four corners of the shelf. Other mounting holes 310 where shelves are not placed and insertion holes on the side wall of the refrigerator are covered by the fixing slot cover 400 using gravity, thereby achieving a simple and bright effect in the internal structure of the entire cabinet 200 and improving the user experience.

[0059] Specifically, the fixed slot cover 400 includes a hinge 410, a cover body 420, and a plug 430. The hinge 410 is located at the upper end of the cover body 420 so that when it is held in place by the support telescopic shaft 22, it drives the cover body 420 to rotate counterclockwise upwards, and when it is released from the support telescopic shaft 22, it drives the cover body 420 to cover the mounting hole 310 of the shelf and the insertion hole on the side wall of the refrigerator. The plug 430 is located on the side of the cover body 420 facing the cabinet 200 so that when the cover body 420 covers the mounting hole 310 of the mounting shelf 300 and the insertion hole on the side wall of the refrigerator, it is inserted into the mounting hole 310 of the mounting shelf 300 and the insertion hole on the side wall of the refrigerator.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom still fall within the protection scope of this invention.

Claims

1. A shelf assembly, characterized in that, include: The shelf body and the telescopic shaft adjustment mechanism provided on the shelf body, the telescopic shaft adjustment mechanism includes an adjustment handle, a transmission device and two supporting telescopic shafts, the telescopic shafts are movably provided in the shelf body and can move linearly back and forth relative to the shelf body; The adjusting handle is connected to the transmission device, which is connected to the two supporting telescopic shafts. The adjusting handle drives the two supporting telescopic shafts to move synchronously closer to or further away from each other through the transmission device.

2. The shelf assembly according to claim 1, characterized in that, It includes two telescopic shaft adjustment mechanisms, and a transmission link connects the two telescopic shaft adjustment mechanisms.

3. The shelf assembly according to claim 2, characterized in that, The transmission device includes a balance wheel and two telescopic shaft swing arms, with the balance wheel connected to each of the two telescopic shaft swing arms respectively. When the balance wheel rotates clockwise, the two telescopic shaft swing arms move away from each other; when the balance wheel moves clockwise, the two telescopic shaft swing arms move closer to each other.

4. The shelf assembly according to claim 3, characterized in that, Two balance wheel slots are provided at opposite ends of the balance wheel, and the two telescopic shafts are provided with two shafts, which are engaged in the two balance wheel slots.

5. The shelf assembly according to claim 4, characterized in that, The adjustment handle includes a handle base, a handle fixing shaft, and two handle connecting posts. The handle fixing shaft is located at the center of the handle base. The balance wheel has a balance wheel fixing hole, and the handle fixing shaft passes through the balance wheel fixing hole. The two handle connecting posts are respectively inserted into the two balance wheel slots, so that the balance wheel rotates relative to the balance wheel with the handle fixing shaft as the axis.

6. The shelf assembly according to claim 5, characterized in that, It also includes a shelf cover plate, which is placed on the shelf body; the shelf cover plate has a cover plate connection hole and two cover plate sliding grooves, the handle fixing shaft passes through the cover plate connection hole, and fasteners pass through the through hole of the handle fixing shaft, the cover plate connection hole and the swing wheel fixing hole; the two handle connecting posts pass through the two cover plate sliding grooves respectively.

7. The shelf assembly according to claim 6, characterized in that, The shelf cover is also provided with guide plates and / or limiting plates. There are multiple guide plates, which are arranged in two rows along the shelf cover. The telescopic shaft swing rod is located between the two rows of guide plates. The telescopic shaft swing arm is sleeved on the limiting plate and can move back and forth linearly relative to the limiting plate.

8. The shelf assembly according to claim 7, characterized in that, The telescopic shaft swing arm has an installation end and a free end at its two ends. The installation end is connected to the supporting telescopic shaft, and an elastic element is sleeved on the free end. One end of the elastic element is connected to the limiting plate, and the other end is connected to the telescopic shaft swing arm.

9. The shelf assembly according to claim 6, characterized in that, The shelf cover plate has a clearance hole on its side wall, and the transmission link passes through the clearance hole to connect with the telescopic shaft swing rod; The transmission device also includes a telescopic connecting rod sleeve, which covers the transmission connecting rod.

10. A refrigerator, characterized in that, Includes the shelf assembly as described in any one of claims 1 to 9.

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