Shelf assembly and refrigerator

Abstract

The shelf assembly comprises a shelf component, a supporting structure and a guide rail, the shelf component is connected to the guide rail through the supporting structure, and the supporting structure comprises a supporting frame, a first fixing block, a second fixing block and a synchronous connecting rod. The supporting frame drives the first fixing block and the second fixing block to be close to or away from each other in the moving process. When the first fixing block and the second fixing block are close to each other, the clamping space between the first fixing block and the second fixing block becomes smaller and is locked with the guide rail. When the first fixing block and the second fixing block are far away from each other, the clamping space between the first fixing block and the second fixing block is enlarged, and the guide rail is loosened. According to the shelf assembly and the refrigerator, the problems that in the prior art, due to the fact that the position of a shelf of a refrigerator cannot be freely adjusted, user operation is inconvenient, and user experience is poor are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, and in particular to a shelf assembly and a refrigerator. Background Art

[0002] With the continuous progress of society and the continuous improvement of people's living standards, refrigerators, as a refrigeration and preservation appliance, are increasingly used by people and have entered the daily lives of more and more people. Shelves are important carriers for storing food and are also a separation tool for classifying food. However, the space in the box is limited. If the classification space can be flexibly adjusted according to the volume of food, the storage capacity of the refrigerator for food can be effectively increased.

[0003] Existing refrigerators generally add ribs inside the box to place shelves. However, due to the number and structural limitations of the ribs, users cannot adjust the height of the shelves at will, which makes the operation inconvenient and the user experience poor.

[0004] The prior art discloses a shelf with rails on both sides and a buckle in the middle for locking and limiting. However, due to the position of the buckle in the middle, the shelf can only be placed at the buckle locking position and cannot be freely adjusted, which is inconvenient for users to operate and has a poor user experience.

[0005] In summary, in the prior art, the position of the refrigerator shelves cannot be freely adjusted, which causes inconvenience in user operation and poor user experience. Utility Model Content

[0006] The utility model provides a shelf assembly and a refrigerator in the embodiment to solve the problem in the prior art that the position of the refrigerator shelf cannot be freely adjusted, resulting in inconvenient operation for the user and poor user experience.

[0007] To achieve the above-mentioned purpose, the utility model provides a shelf assembly, including a shelf component, a support structure and a guide rail, wherein the shelf component is connected to the guide rail through the support structure, and the support structure includes: a support frame, the shelf component is arranged on the support frame, the support frame is used to support the shelf component, and the support frame has a first mounting hole and a second mounting hole; a first fixing block, a first end of the first fixing block is pivotally connected to the first mounting hole; a second fixing block, a first end of the second fixing block is pivotally connected to the second mounting hole; the first fixing block and the second fixing block are arranged opposite to each other and clamp the guide rail; a synchronous connecting rod, the synchronous connecting rod has a third mounting hole and a fourth mounting hole The first fixing block is pivotally connected to the third fixing hole, and the second end of the second fixing block is pivotally connected to the fourth fixing hole. The first fixing hole, the second fixing hole, the third fixing hole, and the fourth fixing hole form four vertices of a parallelogram, and the support frame drives the first fixing block and the second fixing block to move closer to or away from each other during movement. When the first fixing block and the second fixing block are closer to each other, the clamping space between the first fixing block and the second fixing block becomes smaller and is locked with the guide rail. When the first fixing block and the second fixing block are farther away from each other, the clamping space between the first fixing block and the second fixing block becomes larger and releases the guide rail.

[0008] Furthermore, a first stroke limiter is provided on the second fixed block, and a second stroke limiter is provided on the support frame; the first stroke limiter is a limit pin or a stroke limiting hole, and the second stroke limiter is a stroke limiting hole or a limit pin that cooperates with the first stroke limiter; the limit pin is slidably located in the stroke limiting hole; the cooperation between the second stroke limiter and the first stroke limiter is used to guide and limit the moving stroke of the second fixed block.

[0009] Furthermore, the synchronous connecting rod and the supporting frame are connected and pre-tightened with each other through a pre-tightening structure.

[0010] Furthermore, the pre-tensioning structure is a pre-tensioning spring, a first end of the pre-tensioning spring is connected to the synchronization link, a second end of the pre-tensioning spring is connected to the support frame, and a pre-tensioning force of the pre-tensioning spring is in a direction in which the synchronization link approaches the support frame.

[0011] Furthermore, the support frame is arranged in the horizontal direction to support the shelf; the two ends of the support frame in the horizontal direction are respectively an operating end and a mating end; the guide rail is located at the mating end of the support frame, the first fixed block and the second fixed block are respectively located on both sides of the guide rail, the first fixed block is located on the side of the guide rail facing away from the operating end, and the second fixed block is located on the side of the guide rail facing the operating end.

[0012] Further, the guide rail extends in a vertical direction, a line connecting the center of the first mounting hole and the center of the third mounting hole is parallel to the extension direction of the guide rail, and a line connecting the center of the second mounting hole and the center of the fourth mounting hole is parallel to the extension direction of the guide rail.

[0013] Furthermore, the first mounting hole is located at the mating end of the support frame, and the second mounting hole is located below the first mounting hole; when the operating end of the support frame is lifted, the first fixing block and the second fixing block move away from each other; when the support frame is subjected to a downward force in a vertical direction, the first fixing block and the second fixing block move closer to each other.

[0014] Furthermore, it also includes: a decorative cover plate, which is connected to the synchronous connecting rod; a third stroke limiter is arranged on the decorative cover plate, and a fourth stroke limiter is arranged on the support frame; the third stroke limiter is a limit pin shaft or a stroke limiting hole, and the fourth stroke limiter is a stroke limiting hole or a limit pin shaft that cooperates with the third stroke limiter; the limit pin shaft is slidably located in the stroke limiting hole; the cooperation between the fourth stroke limiter and the third stroke limiter is used to limit the stroke of the support frame.

[0015] According to another aspect of the utility model, a refrigerator is provided, comprising the above-mentioned shelf assembly.

[0016] Furthermore, the shelf assembly is arranged in the box of the refrigerator, the guide rails are multiple and arranged on the back of the box, at least two of the guide rails are symmetrically installed on both sides of the shelf component, and one support frame is correspondingly installed on each guide rail.

[0017] In the shelf assembly of the utility model, the support structure is directly installed on the guide rail through the relative clamping of the first fixed block and the second fixed block, without the need for other support structures. The first mounting hole, the second mounting hole, the third mounting hole, and the fourth mounting hole form the four vertices of a parallelogram, so that the corresponding parts of the first fixed block, the support frame, the second fixed block, and the synchronous connecting rod respectively form the four sides of the parallelogram. The parallelogram has a degree of freedom. The above parallelogram can drive the first fixed block and the second fixed block to move closer to or away from each other under the above connection and cooperation. When the support frame is placed horizontally or there is a heavy object on the shelf component, one vertex angle of the parallelogram is reduced, and the first fixed block and the second fixed block quickly approach each other and clamp the guide rail and lock. Under the action of weight, self-locking and fixing are achieved. If the weight on the shelf component is heavier, the first fixed block and the second fixed block are clamped more tightly, and the locking effect is better, which can meet the support. When the user needs to adjust the position of the shelf component on the guide rail, the support frame is lifted. When the support frame is lifted, the vertex angle of the parallelogram increases to, the first fixed block and the second fixed block move away from each other and release the guide rail. At this time, the user can adjust the position of the shelf component and the support frame to any desired position, and then put down the shelf component and the support frame. The first fixed block and the second fixed block return to the position relationship locked with the guide rail to complete the self-locking, and the user does not need to perform any other operations. It can be seen that the user can make infinite adjustments to the shelf component as needed, and can adjust the shelf component to any position on the guide rail. It will not be restricted by the fixed structure and can be adjusted freely. During the entire operation, you only need to lift the shelf component and the support frame. The shelf assembly can complete self-locking when not operated. The overall operation is more convenient, which improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the shelf assembly of the embodiment of the utility model when the guide rail is locked;

[0019] Figure 2 It is a schematic structural diagram of the shelf assembly of the embodiment of the utility model when the guide rail is released;

[0020] Figure 3 It is a schematic diagram of the structure decomposition of the shelf assembly of an embodiment of the utility model;

[0021] Figure 4 It is a force diagram of the shelf assembly of the embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of the assembly of a part of the structure of the shelf assembly of an embodiment of the utility model;

[0023] Figure 6It is a structural schematic diagram of a first fixing block and a second fixing block of a shelf assembly according to an embodiment of the utility model;

[0024] Figure 7 It is a structural schematic diagram of a support frame of a shelf assembly according to an embodiment of the utility model;

[0025] Figure 8 It is a structural schematic diagram of a shelf component and a supporting structure of a shelf assembly of an embodiment of the utility model;

[0026] Fig. 9 It is a structural schematic diagram of a refrigerator according to an embodiment of the utility model;

[0027] Fig.10 It is a cross-sectional view of a refrigerator box of an embodiment of the utility model;

[0028] Fig.11 It is a schematic diagram of the structural assembly of a refrigerator according to an embodiment of the utility model;

[0029] Fig.12 yes Fig.11 A partial enlarged view of

[0030] Fig.13 It is a schematic diagram of the structure decomposition of the shelf component of the refrigerator in an embodiment of the utility model;

[0031] Fig.14 yes Fig.13 A partial enlarged view of the trim of the shelf component;

[0032] Fig.15 yes Fig.13 A partial enlarged view of the side edge of the shelf component;

[0033] Fig.16 yes Fig.15 Schematic diagram of the side hemming fixing screw countersunk head giving way;

[0034] Fig.17 yes Fig.15 Schematic diagram of the structure of the installation groove of the side edge. DETAILED DESCRIPTION

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0036] See also Figures 1 to 8 As shown, according to an embodiment of the utility model, a shelf assembly is provided, the shelf assembly comprising a shelf component A, a support structure B and a guide rail C, the shelf component A is connected to the guide rail C through the support structure B, and the support structure B comprises:

[0037] A support frame 10, the shelf component A is arranged on the support frame 10, the support frame 10 is used to support the shelf component A, and the support frame 10 has a first mounting hole D1 and a second mounting hole D2;

[0038] A first fixing block 21, wherein a first end of the first fixing block 21 is pivotally connected to the first mounting hole D1;

[0039] A second fixing block 22, a first end of the second fixing block 22 is pivotally connected to the second mounting hole D2; the first fixing block 21 and the second fixing block 22 are arranged opposite to each other and clamp the guide rail C;

[0040] A synchronous connecting rod 30, wherein the synchronous connecting rod 30 has a third mounting hole D3 and a fourth mounting hole D4, wherein the second end of the first fixing block 21 is pivotally connected to the third mounting hole D3, and the second end of the second fixing block 22 is pivotally connected to the fourth mounting hole D4;

[0041] The first mounting hole D1, the second mounting hole D2, the third mounting hole D3, and the fourth mounting hole D4 form four vertices of a parallelogram, and the support frame 10 drives the first fixing block 21 and the second fixing block 22 to move closer to or away from each other during movement;

[0042] When the first fixing block 21 and the second fixing block 22 are close to each other, the clamping space between the first fixing block 21 and the second fixing block 22 becomes smaller and is locked with the guide rail C;

[0043] When the first fixing block 21 and the second fixing block 22 move away from each other, the clamping space between the first fixing block 21 and the second fixing block 22 becomes larger and the guide rail C is released.

[0044] In the shelf assembly of the utility model, the support structure B is directly installed on the guide rail C through the relative clamping of the first fixing block and the second fixing block, without the need for other supporting structures. The first mounting hole D1, the second mounting hole D2, the third mounting hole D3, and the fourth mounting hole D4 form the four vertices of a parallelogram, so that the corresponding parts of the first fixing block, the support frame, the second fixing block, and the synchronous connecting rod respectively form the four sides of the parallelogram. The parallelogram has a degree of freedom. Under the above-mentioned connection and cooperation, the above-mentioned parallelogram can drive the first fixing block 21 and the second fixing block 22 to move closer to or away from each other when the support frame moves. See Figure 1When the support frame is placed horizontally or there is a heavy object on the shelf component, one of the apex angles ∠a of the parallelogram decreases, and the first fixing block 21 and the second fixing block 22 quickly approach each other and clamp the guide rail C and lock. Under the action of weight, self-locking and fixation are achieved. If the weight on the shelf component is heavier, the first fixing block 21 and the second fixing block 22 clamp more tightly, and the locking effect is better, which can meet the support requirements. When the user needs to adjust the position of the shelf component on the guide rail, lift the support frame, see Figure 2 When the support frame is lifted, the vertex angle of the parallelogram increases to ∠a', the first fixed block and the second fixed block move away from each other and release the guide rail. At this time, the user can adjust the position of the shelf assembly and the support frame to the desired position, and then put down the shelf assembly and the support frame. The first fixed block and the second fixed block return to the position relationship locked with the guide rail to complete the self-locking, and the user does not need to perform any other operations. It can be seen that the user can perform stepless adjustment of the shelf assembly as needed, and can adjust the shelf assembly to any position on the guide rail. It will not be restricted by the fixed structure and can be adjusted freely. During the entire operation, you only need to lift the shelf assembly and the support frame. The shelf assembly can complete self-locking when not operated. The overall operation is more convenient, which improves the user experience.

[0045] It should be noted that the specific positions of the vertices of the parallelogram, the structural shape of the support frame, the shape of the first fixed block, the shape of the second fixed block, and the shape of the synchronous connecting rod can be selected and changed according to actual conditions. The embodiment of the utility model provides an implementation method, but no specific limitation is made. Through the characteristics of the parallelogram and the four vertices are pivotally connected, as long as the support frame can drive the first fixed block and the second fixed block to complete the structural coordination of approaching and moving away during movement. In this embodiment, the first fixed block and the second fixed block are respectively connected to the first mounting hole, the second mounting hole, the third mounting hole, and the fourth mounting hole through a hinge axis, see the connection of Figure 3 The pivot connection method can also adopt other pivot axes, which will not be described here.

[0046] Preferably, a first stroke limiter E1 is provided on the second fixed block 22, and a second stroke limiter E2 is provided on the support frame 10; the first stroke limiter E1 is a limiter pin or a stroke limiting hole, and the second stroke limiter E2 is a stroke limiting hole or a limiter pin that cooperates with the first stroke limiter E1; the limiter pin is slidably located in the stroke limiting hole; the cooperation between the second stroke limiter E2 and the first stroke limiter E1 is used to guide and limit the moving stroke of the second fixed block 22. In this embodiment, the first stroke limiter E1 is a limiter pin, and is provided at the first end of the second fixed block 22, and the limiter pin corresponds to the pivot installation position of the first end of the second fixed block 22, see for details Figure 3 and Figure 5 The stroke limiting hole may be a waist-shaped hole, and the positions of the first stroke limiting member E1 and the second stroke limiting member E2 may be adjusted according to the specific structural shape.

[0047] The first stroke limiter E1 and the second stroke limiter E2 are provided to guide and limit the movement of the second fixed block 22, so that the second fixed block 22 can move away from the first fixed block 11 smoothly, and the movement range of the second fixed block 22 can be limited to be too large, so as to prevent the support structure B from being separated from the guide rail C and increase the structural stability. The structure of the limit pin and the stroke limiting hole is selected to make the overall structure simple and stable.

[0048] The synchronous connecting rod 30 is connected and pre-tightened with the support frame 10 through a pre-tightening structure. The function of the pre-tightening structure is to prevent the shelf assembly from shaking, which leads to a reduction in the clamping force on the guide rail and the shelf component sliding, thereby improving the stability of the shelf assembly.

[0049] Preferably, the preload structure is a preload spring 40, a first end of the preload spring 40 is connected to the synchronization link 30, a second end of the preload spring 40 is connected to the support frame 10, and the preload force of the preload spring 40 is directed toward the direction in which the synchronization link 30 approaches the support frame 10. Both the synchronization link 30 and the support frame 10 are provided with hooks that cooperate with the preload spring.

[0050] Since the preload spring is in a tension state after connecting the synchronous link 30 and the support frame 10, the preload spring applies tension along the spring axis, thereby applying preload force to the entire mechanism assembly. Through the force relationship, the clamping and locking of the guide rail by the first fixed block and the second fixed block is kept stable. The preload spring is used to provide preload force to the entire structure to prevent the shelf assembly from not having enough clamping force to fix its position when unloaded. At the same time, after adjustment, the mechanism can quickly clamp and lock the guide rail to prevent errors in the adjustment position.

[0051] Combination Figure 1 and Figure 2 As shown, the support frame 10 is arranged in the horizontal direction to support the shelf; the two ends of the support frame 10 in the horizontal direction are respectively the operating end 11 and the mating end 12; the guide rail C is located at the mating end 12 of the support frame 10, the first fixing block 21 and the second fixing block 22 are respectively located on both sides of the guide rail C, the first fixing block 21 is located on the side of the guide rail C facing away from the operating end 11, and the second fixing block 22 is located on the side of the guide rail C facing the operating end 11.

[0052] The operating end 11 of the support frame 10 is located on one side of the refrigerator door, which is convenient for users to directly operate. The matching end 12 of the support frame 10 is located inside the box, and the guide rail is also arranged on the surface inside the box. Such a structure makes the shelf assembly not occupy too much space.

[0053] Preferably, the guide rail C extends in a vertical direction, a line connecting the center of the first mounting hole D1 and the center of the third mounting hole D3 is parallel to the extension direction of the guide rail C, and a line connecting the center of the second mounting hole D2 and the center of the fourth mounting hole D4 is parallel to the extension direction of the guide rail C.

[0054] Combination Figure 2 and Fig. 9 As shown, the guide rail C extends in the vertical direction, so that the shelf component can be freely adjusted up and down. The user can adjust the shelf component to any height, realizing stepless adjustment and providing a good user experience. Figure 6 The shape of the first fixed block as a whole extends in the vertical direction. The first fixed block is respectively arranged with a first upper hinge shaft hole 21a and a first lower hinge shaft hole 21b which are spaced apart from each other up and down, corresponding to the first mounting hole D1 and the third mounting hole D3. The second fixed block is respectively arranged with a second upper hinge shaft hole 22a and a second lower hinge shaft hole 22b which are spaced apart from each other up and down, corresponding to the second mounting hole D2 and the fourth mounting hole D4. The first fixed block has a first clamping surface 21c which extends in the vertical direction, and the second fixed block has a matching second clamping surface 22c. The two clamping surfaces clamp the guide rail and are locked by friction.

[0055] Further preferably, the first mounting hole D1 is located at the mating end 12 of the support frame 10, and the second mounting hole D2 is located below the first mounting hole D1;

[0056] When the operating end 11 of the support frame 10 is lifted, the first fixing block 21 and the second fixing block 22 move away from each other;

[0057] When the support frame 10 is subjected to a downward force in a vertical direction, the first fixing block 21 and the second fixing block 22 move closer to each other.

[0058] Through the above-mentioned structural setting and specific cooperation, when the operating end 11 of the support frame 10 is lifted, the guide rail can be loosened to unlock and adjust the up and down position of the shelf component. When the support frame 10 is pressed down or there is a heavy object on the shelf component A, it can be automatically locked on the guide rail. The structure is simple and easy to operate, and it can automatically achieve locking, which provides a better user experience.

[0059] Combination Figure 4As shown, G is the force exerted on the support frame by the gravity of the stored object; G' is the force at the second mounting hole D2; Gx is the component of G' in the horizontal direction, that is, the clamping force of the support structure B on the guide rail C; Gy is the component of G' in the vertical direction; L1 is the force arm of the stored object; L2 is the force arm at the second mounting hole D2.

[0060] The formula is satisfied: G*L1=G'*L2, Gx=G'*cos∠a, so Gx=G*L1 / L2*cos∠a; from this formula, it can be seen that when G increases, Gx also increases, that is, the heavier the weight of the storage items on the shelf component (within the load-bearing range of the shelf component), the greater the clamping force of the support structure B on the guide rail C, and the tighter the clamping under the mechanical conduction of the overall structure, the better the locking effect.

[0061] See also Figure 5 and Figure 7 The shelf assembly further comprises a decorative cover plate 50, wherein the decorative cover plate 50 is connected to the synchronous connecting rod 30; a third travel limiter E3 is provided on the decorative cover plate 50, and a fourth travel limiter E4 is provided on the support frame 10;

[0062] The third stroke limiter E3 is a limit pin or a stroke limiting hole, and the fourth stroke limiter E4 is a stroke limiting hole or a limit pin that cooperates with the third stroke limiter E3; the limit pin is slidably located in the stroke limiting hole;

[0063] The fourth stroke limiting member E4 cooperates with the third stroke limiting member E3 to limit the stroke of the support frame 10 .

[0064] The decorative cover plate 50 is clamped on the synchronous link 30 through a fixed buckle, and is further limited with the support frame through the third travel limiter E3. The decorative cover plate 50 can not only protect the synchronous link 30 and the support frame 10, but also limit and guide the movement of the support frame 10 to prevent the support frame from lifting too much and causing the entire shelf assembly to fail.

[0065] Combination Figures 1 to 3 As shown, the specific structure of the shelf assembly of this embodiment has the following movement process and coordination in different situations:

[0066] Since the center distance between the first mounting hole D1 and the second mounting hole D2 remains unchanged, when the user adjusts the position of the shelf component A, the support frame (or the shelf component A fixedly connected to the support frame) is lifted upward, and the operating end of the support frame moves in the direction of F. At this time, the first fixed block is regarded as a relatively fixed state, and the support frame rotates counterclockwise in a circular manner with the first mounting hole D1 as the axis, driving the second fixed block to move upward. Since multiple parts constitute a parallelogram connecting rod, the synchronous connecting rod rotates counterclockwise in a circular manner parallel to the support frame with the third mounting hole D3 as the axis, and the second fixed block moves upward parallel to the first fixed block. At this time, ∠a gradually increases until it reaches the position where the second fixed block is limited by the second travel limiter. At this time, the angle increases to ∠a'. According to the right triangle formula (sina's formula), since the distance between the two axial holes remains unchanged, when ∠a increases, the distance between the two fixed blocks also increases. At this time, the guide rail 04 is released, and the shelf component can be adjusted up and down. At the same time, because the structure of the guide rail can adjust the position of the shelf component arbitrarily without being affected by other factors, the user can infinitely adjust the shelf according to the stored items. After the user adjusts the position, the shelf assembly quickly completes the clamping action through the preload spring and the influence of the gravity of the shelf itself. The heavier the storage on the shelf component, the greater the gravity position torque exerted by the storage on the shelf. Under the mechanical conduction of the overall structure, the guide rail is clamped more tightly, and the locking effect is better, preventing the problem of heavy objects falling off.

[0067] See also Figures 9 to 17 As shown, the utility model provides an embodiment of a refrigerator, including the shelf assembly of the above embodiment.

[0068] The shelf assembly is arranged in the box 60 of the refrigerator, the guide rails C are multiple and arranged on the back of the box 60, at least two guide rails C are symmetrically installed on both sides of the shelf component, and one support frame 10 is correspondingly installed on each guide rail C.

[0069] The two guide rails C are symmetrically installed on both sides of the shelf component A, and can play the dual role of guide rails and stable supports. The two guide rails can make the overall placement and movement process of the shelf component A more stable.

[0070] The number of shelf components A can be multiple, arranged at intervals along the vertical direction, effectively utilizing the space of the box. Fig.10 , Fig.11 . Combined Fig.12 As shown, the guide rail and the front side of the air duct mask are in the same plane, which has a beautiful appearance. The design can be carried out together with the hidden air outlet. After the air outlet is hidden in this gap, the appearance is improved.

[0071] Combination Figures 13 to 17As shown, the shelf component A includes a glass plate A01, two symmetrical side edges A02, and two decorative strips A03. The edge fixing structure and screw fixing holes on the decorative strips have the same structure at the other end. The fixing screws of the side edges are countersunk and give way (the other end has the same structure). The two are fixed by countersunk screws, and the glass plate is wrapped by the two decorative strips front and back and fixed together by the side edges on both sides. Since the side edges have a symmetrical structure, the support frames on both sides are respectively clamped in the installation grooves of the side edges on both sides. This structure makes it convenient for users to disassemble and assemble the glass shelf for cleaning.

[0072] The user can adjust the shelf position up and down by slightly lifting the front end of the shelf, without being affected by various limit devices, thereby achieving the purpose of stepless adjustment and improving space utilization. This structure can be clamped and positioned quickly, and under the influence of gravity, the heavier the storage items on the shelf, the tighter the clamping, improving user experience and positioning reliability. Finally, the design of the rear guide rail improves the appearance of the refrigerator.

[0073] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0074] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0075] Of course, the above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the basic principles of the present invention, and these improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A shelf assembly, comprising a shelf component (A), a support structure (B) and a guide rail (C), wherein the shelf component (A) is connected to the guide rail (C) via the support structure (B), characterized in that: The support structure (B) comprises: A support frame (10), the shelf component (A) is arranged on the support frame (10), the support frame (10) is used to support the shelf component (A), and the support frame (10) has a first mounting hole (D1) and a second mounting hole (D2); A first fixing block (21), wherein a first end of the first fixing block (21) is pivotally connected in the first mounting hole (D1); a second fixing block (22), wherein a first end of the second fixing block (22) is pivotally connected to the second mounting hole (D2); the first fixing block (21) and the second fixing block (22) are arranged opposite to each other and clamp the guide rail (C); A synchronous connecting rod (30), the synchronous connecting rod (30) having a third mounting hole (D3) and a fourth mounting hole (D4), the second end of the first fixing block (21) being pivotally connected in the third mounting hole (D3), and the second end of the second fixing block (22) being pivotally rotated in the fourth mounting hole (D4); The first mounting hole (D1), the second mounting hole (D2), the third mounting hole (D3), and the fourth mounting hole (D4) form four vertices of a parallelogram, and the support frame (10) drives the first fixing block (21) and the second fixing block (22) to move closer to or farther from each other during movement; When the first fixing block (21) and the second fixing block (22) are brought closer to each other, the clamping space between the first fixing block (21) and the second fixing block (22) becomes smaller and is locked with the guide rail (C); When the first fixing block (21) and the second fixing block (22) move away from each other, the clamping space between the first fixing block (21) and the second fixing block (22) becomes larger and the guide rail (C) is released.

2. The shelf assembly according to claim 1, characterized in that: The second fixed block (22) is provided with a first stroke limiter (E1), and the support frame (10) is provided with a second stroke limiter (E2); The first stroke limiting member (E1) is a limiting pin or a stroke limiting hole, and the second stroke limiting member (E2) is a stroke limiting hole or a limiting pin that cooperates with the first stroke limiting member (E1); the limiting pin is slidably located in the stroke limiting hole; The cooperation between the second stroke limiting member (E2) and the first stroke limiting member (E1) is used to guide and limit the moving stroke of the second fixed block (22).

3. The shelf assembly according to claim 1, characterized in that: The synchronous connecting rod (30) and the supporting frame (10) are connected and pre-tightened with each other via a pre-tightening structure.

4. The shelf assembly according to claim 3, characterized in that: The pre-tightening structure is a pre-tightening spring (40), a first end of the pre-tightening spring (40) is connected to the synchronous connecting rod (30), a second end of the pre-tightening spring (40) is connected to the support frame (10), and the pre-tightening force of the pre-tightening spring (40) is in the direction of approaching the synchronous connecting rod (30) and the support frame (10).

5. The shelf assembly according to claim 1, characterized in that: The support frame (10) is arranged in a horizontal direction to support the shelf; two ends of the support frame (10) in the horizontal direction are respectively an operating end (11) and a matching end (12); The guide rail (C) is located at the mating end (12) of the support frame (10); the first fixing block (21) and the second fixing block (22) are respectively located on two sides of the guide rail (C); the first fixing block (21) is located on the side of the guide rail (C) facing away from the operating end (11); and the second fixing block (22) is located on the side of the guide rail (C) facing the operating end (11).

6. The shelf assembly according to claim 5, characterized in that: The guide rail (C) extends in a vertical direction, a line connecting the center of the first mounting hole (D1) and the center of the third mounting hole (D3) is parallel to the extension direction of the guide rail (C), and a line connecting the center of the second mounting hole (D2) and the center of the fourth mounting hole (D4) is parallel to the extension direction of the guide rail (C).

7. The shelf assembly according to claim 6, characterized in that: The first mounting hole (D1) is located at the mating end (12) of the support frame (10), and the second mounting hole (D2) is located below the first mounting hole (D1); When the operating end (11) of the support frame (10) is lifted, the first fixing block (21) and the second fixing block (22) move away from each other; When the support frame (10) is subjected to a downward force in the vertical direction, the first fixing block (21) and the second fixing block (22) move closer to each other.

8. The shelf assembly according to claim 7, characterized in that: Also includes: A decorative cover plate (50), wherein the decorative cover plate (50) is connected to the synchronous connecting rod (30); The decorative cover plate (50) is provided with a third travel limiter (E3), and the support frame (10) is provided with a fourth travel limiter (E4); The third stroke limiting member (E3) is a limiting pin or a stroke limiting hole, and the fourth stroke limiting member (E4) is a stroke limiting hole or a limiting pin that cooperates with the third stroke limiting member (E3); the limiting pin is slidably located in the stroke limiting hole; The fourth stroke limiting member (E4) cooperates with the third stroke limiting member (E3) to limit the stroke of the support frame (10).

9. A refrigerator comprising the shelf assembly according to any one of claims 1 to 8.

10. The refrigerator according to claim 9, characterized in that: The shelf assembly is arranged in a refrigerator box (60); the guide rails (C) are multiple and arranged on the back of the box (60); at least two guide rails (C) are symmetrically installed on both sides of the shelf component; and one support frame (10) is correspondingly installed on each guide rail (C).

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