Storage mounting rack, shelf and refrigerated cabinet

Abstract

The utility model discloses a shelf mounting rack, a shelf and a refrigerated cabinet. The shelf mounting rack comprises a frame, partition pieces and supporting pieces. Wherein the frame comprises a front side plate and a rear side plate, the partition pieces are flat components with the sections being large in height and small in width, the multiple partition pieces are arranged between the front baffle and the rear baffle side by side, and the two ends of each partition piece are fixedly connected with the front side plate and the rear side plate respectively; a supporting piece is arranged at the bottom of each partition piece, and the supporting pieces extend from the bottoms of the partition pieces in the lateral direction to form supporting parts used for supporting the sliding ways. According to the storage mounting rack, the thickness of the part used for bearing the slide way is greatly reduced, and the vertical space utilization rate of the refrigerated cabinet is improved.

Description

Technical Field

[0001] This utility model relates to shelves, specifically to a shelf mounting rack, a shelf unit, and a refrigerated cabinet. Background Technology

[0002] Supermarkets and convenience stores use shelves to store goods (mainly bottled beverages, wine, and water). Early shelves lacked an automatic sliding mechanism; once a customer took a bottle, the next one wouldn't slide forward automatically, requiring frequent restocking and making them inconvenient. Later, shelves with sliding tracks appeared. These shelves consist of a mounting frame and sliding tracks. The mounting frame acts as a support, connecting to the refrigerated display case. Multiple tracks are arranged side-by-side within the mounting frame. Goods are placed on the tracks, which are typically angled. After the first bottle is taken, the next bottle slides forward automatically due to gravity, making it easier for customers to access and reducing restocking costs. To facilitate separation of goods between different tracks, dividers are usually installed between adjacent tracks.

[0003] In existing shelving systems, the mounting rack typically includes a rectangular frame with multiple crossbeams and / or longitudinal beams to increase its strength and load-bearing capacity. Multiple slides are pre-connected into a whole by the frame, and then the entire slide is placed on the mounting rack and fixed. The dividers can be fixed to the slides or to the mounting rack.

[0004] For example, the utility model patent with authorization announcement number CN219868738U discloses a high-strength, deformation-resistant shelf slide assembly, including a base frame 1, a support beam 2 on the base frame 1, and multiple parallel guide slides 3 on the base frame 1. The upper surface of each guide slide 3 has multiple guide protrusions 4 for guiding material sliding. Support plates 5 extending along the length of the guide slide 3 and pressing against the support beam 2 are respectively provided on both sides of the bottom end of the guide slide 3. At least one reinforcing plate 6 is provided in the middle of the bottom end of the guide slide 3 between the two support plates 5, and the reinforcing plate 6 is parallel to the support plates 5. The guide slide 3 has a plug-in end 9 at each of its front and rear ends, one end of which can be inserted into a plug-in slot. The plug-in end 9 has a clearance slot 91 for inserting the reinforcing plate 6. The base frame 1 has two opposing and spaced-apart mounting strips 11, each with a slot 12 for inserting the other end of the plug-in end 9. All the guide slides 3 are connected into a whole by the two mounting strips 11.

[0005] The aforementioned high-strength, deformation-resistant shelf slide assembly improves its bending strength by setting support plates 5 and reinforcing plates 6 on the guide plates 3 and connecting all the guide plates 3 into a whole by two mounting strips 11. However, the following shortcomings still exist:

[0006] The base frame 1, which supports the overall guide plate 3 and the weight of the goods, is a rectangular frame structure. In order to obtain sufficient strength, the base frame 1 and its supporting beams 2 need to have sufficient thickness in the vertical direction. The shelves in the refrigerated cabinet are arranged vertically. The greater the thickness of the base frame 1 and its supporting beams 2, the smaller the effective space for placing goods. The existing base frame structure has a large thickness, which is not conducive to making full use of the effective height space of the refrigerated cabinet, and the space utilization rate needs to be improved. Utility Model Content

[0007] The purpose of this utility model is to overcome the above-mentioned problems and provide a shelf mounting rack that greatly reduces the thickness of the part used to support the slide rail, thereby improving the vertical space utilization of the refrigerator.

[0008] Another objective of this invention is to provide a shelf that includes the aforementioned shelf mounting bracket.

[0009] The third objective of this invention is to provide a refrigerator that includes the aforementioned shelves.

[0010] The objective of this utility model is achieved through the following technical solution:

[0011] A shelf mounting rack includes a frame, dividers, and support plates; wherein the frame includes a front side plate and a rear side plate, the dividers are flat members with a large height and a small width in cross-section, and there are multiple dividers arranged side by side between the front baffle and the rear baffle, with both ends of the dividers fixedly connected to the front side plate and the rear side plate respectively; each divider has a support plate at its bottom, which extends laterally from the bottom of the divider to form a support portion for supporting the slide rail.

[0012] In a preferred embodiment of this utility model, the partition and support plate are rectangular sheet-like components. The partition and support plate are interconnected to form a T-shaped component, with both end faces of the T-shaped component connected to the inner surfaces of the front and rear side plates, respectively. The end faces of the T-shaped component formed by the partition and support plate are welded to the inner surfaces of the front and rear side plates, meaning that both ends of the support plate are also connected to the front and rear side plates. This further improves the bending resistance of the shelf and thus enhances its overall load-bearing capacity.

[0013] Furthermore, the T-shaped component can be connected to the front and rear side plates using welding, or other connection methods such as snap-fitting and riveting can also be used.

[0014] In a preferred embodiment of this invention, the frame further includes a left side plate and a right side plate. Each of the left and right side plates has a support piece at its bottom facing the separator. This support piece extends from the bottom of the left and right side plates towards the separator to form a support portion for supporting the slide rails. This ensures that the two outermost slide rails are also supported by the two support portions.

[0015] In a preferred embodiment of this invention, the front side panel is provided with a mounting structure for installing labels. This further simplifies the frame structure and increases the cargo capacity. In the prior art, the front side panel and the label mounting plate are two separate components, which reduces the cargo capacity of the frame in the front-to-back direction and makes the structure complex. This preferred embodiment integrates the front side panel and the label mounting plate into one unit, resulting in a more compact structure and further increasing the cargo capacity.

[0016] In a preferred embodiment of this utility model, the left and right sides of the frame are provided with side guards for protecting goods located at the edges; the front side of the frame is provided with a front guard for protecting goods located at the front.

[0017] In a preferred embodiment of this utility model, the two ends of the separator are respectively provided with mounting holes between the front side plate and the rear side plate, so as to install sealing strips at both ends of the slide rails, thereby fixing multiple slide rails together. Furthermore, the outermost support plates on both the left and right sides each have only a support portion on the inner side.

[0018] In a preferred embodiment of this utility model, the two ends of the separator are provided with dip-coating notches between them and the front and rear side panels, respectively. The purpose of these notches is to allow the shelf to be dip-coated after it is obtained, thus wrapping it with a plastic layer for multi-faceted protection. During dip-coating, the shelf is placed in the dip-coating tank and then lifted out after a certain period. If the two ends of the separator were not provided with dip-coating notches, the area between the two ends of the separator and the front and rear side panels would be a relatively closed dead corner, resulting in poor flow, powder accumulation, uneven dip-coating thickness, and poor surface quality. This embodiment, by providing dip-coating notches, transforms the dead corner into a flow opening, greatly improving flowability, reducing powder accumulation, resulting in a more uniform dip-coating thickness and improved surface quality.

[0019] Furthermore, both ends of the partition are provided with bent and welded portions, which are respectively attached to the front side plate and the rear side plate, and are fixedly connected by welding. This can improve the strength between the partition and the front and rear side plates.

[0020] Furthermore, both ends of the support piece are provided with reinforcing connecting parts that connect to the front and rear side plates respectively, and these reinforcing connecting parts are located below the dip-coating notch. The advantages of this design are twofold: first, it can limit the slide rail laterally to prevent it from loosening laterally; second, it can serve as a reinforcing structure to improve the strength of the connection between the separator and the front and rear side plates.

[0021] Furthermore, the reinforcing connection is a stepped bending structure. One end face of the stepped bending structure is attached to the front side plate and the rear side plate respectively, and fixedly connected by welding. The other end face of the stepped bending structure is connected to the support plate and the partition respectively, which can further improve the strength of the connection between the various structures.

[0022] Furthermore, the reinforcing connection is integrally formed with the support piece and is created through a stamping process.

[0023] A shelf includes a shelf mounting frame and slides, wherein a plurality of dividers in the shelf mounting frame divide the frame into a plurality of slide mounting spaces, each slide space having an independent slide installed therein, and the bottom of each slide being supported on the support.

[0024] In a preferred embodiment of this invention, the slide rail and the shelf mounting bracket are connected together by a connecting structure. This allows the slide rail to be fixed in the shelf mounting bracket, preventing it from becoming loose.

[0025] In a preferred embodiment of this utility model, the slide rail includes a roller frame, balls, and a plug.

[0026] As a preferred embodiment, the connection structure includes an elastic hook disposed on the plug, which is connected and fixed to the support plate.

[0027] As a second preferred embodiment, the connecting structure includes an upper limit portion and a side limit portion disposed on the front and rear side plates. The upper limit portion is located above the plug, and two side limit portions are provided, each located on one side of the plug. Thus, the position of the slide can be restricted by the upper limit portion and the side limit portion, in conjunction with the support plate.

[0028] As a third preferred embodiment, the connection structure includes an integral limiting groove disposed on the upper side of the plug and integral limiting portions disposed on the front and rear side plates, wherein the integral limiting portions are embedded in the integral limiting groove. In this way, the integral limiting portions can prevent the slide rail from disengaging upwards or left or right, thereby achieving the positioning of the slide rail.

[0029] As a fourth preferred embodiment, the connection structure includes an upper limiting part and a reinforcing connection part. The upper limiting part is disposed on the front side plate and the rear side plate, and the upper limiting part is located above the end cap of the slide.

[0030] A refrigerator includes a plurality of shelves arranged vertically along the refrigerator.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] 1. In the shelf mounting rack of this utility model, by setting the dividers as flat components with a large height and a small width in cross-section, and connecting the two ends of the dividers to the front and rear side panels, the dividers of the above structure have strong bending resistance in the vertical plane (bearing direction). The whole structure formed by connecting the two ends of multiple dividers to the front and rear side panels gives the entire shelf mounting rack sufficient strength and rigidity to support the slide and goods. Thus, the support beam in the prior art can be eliminated, and instead, support plates are used to support the slide. The support plates are only used to support the slide and do not need to be components that bear the strength and rigidity of the shelf mounting rack. Therefore, their thickness can be set to be much smaller than the thickness of the base frame and support beam in the prior art. Thus, while ensuring the overall strength and rigidity of the shelf mounting rack, the thickness of the part of the shelf mounting rack used to support the slide and goods is greatly reduced, thereby increasing the effective vertical placement space of the refrigerator and improving the space utilization rate of the refrigerator.

[0033] 2. The shelf mounting rack of this utility model cleverly utilizes sheet-like dividers as reinforcing components of the frame. These dividers also serve as dividers between slides, achieving two goals at once.

[0034] 3. In the shelf of this utility model, multiple dividers in the shelf mounting rack divide the frame into multiple slide rail mounting spaces. Each slide rail space is equipped with an independent slide rail. Compared with the existing technology of assembling multiple slide rails into a whole by mounting strips and then placing it on the bottom shelf, on the one hand, it can reduce the slide rail production process and save the material cost, processing cost and production assembly cost of the mounting strips. On the other hand, since the two ends of the slide rail do not need to be connected to the mounting strips, a longer effective placement space can be obtained, which is conducive to placing more goods and avoids the phenomenon of "stranding" of goods located at the back side, ensuring that goods located at the back side can slide down normally. Attached Figure Description

[0035] Figures 1-2 These are three-dimensional structural schematic diagrams from two different perspectives of the first embodiment of the shelf of this utility model.

[0036] Figure 3 This is a three-dimensional structural diagram of the first embodiment of the shelf mounting rack of this utility model.

[0037] Figure 4 This is a top view of the first embodiment of the shelf mounting rack of this utility model.

[0038] Figure 5 for Figure 2 A magnified view of X in the image.

[0039] Figure 6 This is a three-dimensional structural diagram of the second embodiment of the shelf of this utility model.

[0040] Figure 7 for Figure 6 A magnified view of the Y-axis.

[0041] Figure 8 This is a partial three-dimensional structural diagram of the third embodiment of the shelf of this utility model.

[0042] Figure 9 This is a partial three-dimensional structural diagram of the fourth embodiment of the shelf of this utility model.

[0043] Figure 10 This is a partial three-dimensional structural diagram of the fifth embodiment of the shelf of this utility model.

[0044] Figure 11 for Figure 10 A magnified view of Z in the image. Detailed Implementation

[0045] To enable those skilled in the art to fully understand the technical solution of this utility model, the present utility model will be further described below in conjunction with the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0046] Example 1

[0047] Combination Figures 1-4 The refrigerator of this embodiment includes multiple shelves arranged vertically along the refrigerator. Each shelf includes a mounting rack and slide rails. The mounting rack includes a frame, dividers 1, and support plates 2. The frame includes a front panel 3 and a rear panel 4. The dividers 1 are flat components with a high cross-section and a narrow width. Multiple dividers 1 are arranged side-by-side between the front panel 3 and the rear panel 4, with both ends of each divider 1 fixedly connected to the front panel 3 and the rear panel 4, respectively. Each divider 1 has a support plate 2 at its bottom, which extends from the bottom of the divider 1 to both sides to form a support portion for supporting the slide rails.

[0048] Specifically, the separator 1 is a rectangular partition plate with several through holes to reduce weight. The separator 1 of this invention utilizes a flat structure, which has a small width, minimizing space occupation when used to divide shelves, while having a relatively large height. This cross-section provides excellent bending resistance in the vertical plane, allowing the shelf to maintain good strength, rigidity, and load-bearing capacity without the need for crossbeams or longitudinal beams at the bottom. Of course, the separator 1 does not need to be a single piece of board. For example, arranging multiple thin rods vertically in a roughly flat structure also provides good bending resistance and should be considered a flat structure as defined in this invention. The support plate 2 is a horizontally extending sheet-like component with a rectangular cross-section. Its main function is to support the slide rail, replacing the crossbeams or longitudinal beams in the prior art.

[0049] Furthermore, the multiple dividers 1 in the shelf mounting bracket divide the frame into multiple slide rail mounting spaces, each slide rail space has an independent slide rail installed, and the bottom of each slide rail is supported on the support.

[0050] Combination Figures 1-4 The partition 1 and support plate 2 are rectangular sheet-like components. They are interconnected to form a T-shaped component, with both ends connected to the inner surfaces of the front panel 3 and the rear panel 4, respectively. The end faces of the T-shaped component formed by the partition 1 and support plate 2 are welded to the inner surfaces of the front panel 3 and the rear panel 4, meaning that both ends of the support plate 2 are also connected to the front panel 3 and the rear panel 4. This further improves the bending resistance of the shelf and thus enhances its overall load-bearing capacity.

[0051] Furthermore, the T-shaped component can be connected to the front side plate 3 and the rear side plate 4 by welding, or other connection methods such as snap-fitting and riveting can also be used.

[0052] Combination Figures 1-4 The frame also includes a left side plate 5 and a right side plate 6. Each of the left side plate 5 and right side plate 6 has a support piece 2 at its bottom facing the separator 1. This support piece 2 extends from the bottom of the left side plate 5 and right side plate 6 towards the separator 1 to form a support portion for supporting the slide rails. This ensures that the two outermost slide rails are also supported by the two support portions.

[0053] Combination Figures 1-4 The front side panel 3 is provided with a mounting structure for installing labels. This further simplifies the frame structure and increases the cargo capacity. In the prior art, the front side panel 3 and the label mounting plate are two separate components, which reduces the cargo capacity of the frame in the front-to-back direction and makes the structure complex. This preferred solution integrates the front side panel 3 and the label mounting plate into one unit, resulting in a more compact structure and further increasing the cargo capacity.

[0054] Combination Figures 1-4 The frame is provided with side guards 7 on the left and right sides for protecting goods located on the edge; the frame is provided with front guards 8 on the front side for protecting goods located on the front side.

[0055] Combination Figures 1-4 The slide rail includes a roller frame 9, ball bearings 10, and a plug 11. The slide rail is connected to the shelf mounting bracket via a connecting structure. This secures the slide rail within the shelf mounting bracket, preventing it from becoming loose.

[0056] Combination Figure 5 The connection structure includes an elastic hook 12 disposed on the plug 11, which is connected and fixed to the support plate 2. During installation, the slide is inserted into the slide installation space from above, wherein the elastic hook 12 on the plug passes over the support plate 2 through elastic deformation and then locks into the bottom surface of the support plate 2, thereby fixing the slide.

[0057] In this embodiment of the shelf mounting rack, by setting the dividers as flat components with a large height and a small width, and connecting the two ends of the dividers to the front and rear side panels, the dividers of the above structure have strong bending resistance in the vertical plane (load-bearing direction). The whole structure formed by connecting the two ends of multiple dividers to the front and rear side panels provides sufficient strength and rigidity for the entire shelf mounting rack to support the slide and goods. This eliminates the need for the support beams in the prior art, replacing them with support plates to support the slide. The support plates are only used to support the slide and do not need to be components that bear the strength and rigidity of the shelf mounting rack. Therefore, their thickness can be set much smaller than the thickness of the base frame and support beams in the prior art. This greatly reduces the thickness of the parts of the shelf mounting rack used to support the slide and goods while ensuring the overall strength and rigidity of the shelf mounting rack, thereby increasing the effective vertical placement space of the refrigerator and improving the space utilization rate of the refrigerator. For example, the base frame and support beams in the prior art are usually made of metal rods with circular or rectangular cross sections. In order to obtain sufficient strength, their cross section height is generally more than 8mm. However, the shelf mounting rack of this utility model provides strength mainly through the overall structure formed by the dividers and the frame. Therefore, the support plates can be made of sheet material with a thickness of 1mm to meet the usage requirements. A single shelf can save 7mm of space. For a refrigerator with about 5-6 shelves, it can accommodate one more shelf or significantly increase the height of each shelf, making it easier to retrieve goods and less likely to get stuck. This maximizes the vertical space utilization of the refrigerator.

[0058] Example 2

[0059] Combination Figures 6-7Unlike Embodiment 1, in this embodiment, the front side panel 3 and the rear side panel 4 are independently set from the label mounting plate 18.

[0060] Example 3

[0061] Combination Figure 8 Unlike other embodiments, the connection structure in this embodiment includes an upper limit part 13 and a side limit part 14 disposed on the front side plate 3 and the rear side plate 4. The upper limit part 13 is located above the plug 11, and there are two side limit parts 14, each located on one side of the plug 11. Thus, the position of the slide can be restricted by the upper limit part 13 and the side limit part 14, in conjunction with the support piece 2. The upper limit part 13 and the side limit part 14 are directly punched and bent into one piece from the front side plate 3 and the rear side plate 4, saving production costs.

[0062] Example 4

[0063] Combination Figure 9 Unlike other embodiments, the connection structure in this embodiment includes an integral limiting groove 15 on the upper side of the plug 11 and an integral limiting part 16 on the front side plate 3 and the rear side plate 4. The integral limiting part 16 is embedded in the integral limiting groove 15. The integral limiting part 16 is directly punched and bent from the front side plate 3 and the rear side plate 4, saving production costs. In this way, the integral limiting part 16 can prevent the slide rail from detaching upwards or left or right, thereby achieving the positioning of the slide rail. The integral limiting part 16 has a certain degree of elasticity, and the slide rail can pass over the integral limiting part 16 from top to bottom during installation.

[0064] Example 5

[0065] Combination Figures 10-11 Unlike other embodiments, in this embodiment, the two ends of the separator 1 are provided with dip-coating notches 17 between the separator 1 and the front side plate 3 and the rear side plate 4, respectively. The purpose of these notches is to allow the shelf to be dip-coated after it is obtained, thus wrapping it with a plastic layer for multi-faceted protection. During dip-coating, the shelf is placed in the dip-coating tank and then lifted out after a certain period. If the separator did not have dip-coating notches at its ends, the area between the separator and the front side plate 3 and the rear side plate 4 would be a relatively closed dead corner, resulting in poor flow, powder accumulation, uneven dip-coating thickness, and poor surface quality. This solution, however, incorporates dip-coating notches, transforming the dead corner into a flow opening, significantly improving flowability, reducing powder accumulation, resulting in a more uniform dip-coating thickness and improved surface quality.

[0066] Furthermore, both ends of the separator 1 are provided with bent and welded portions 1-1, which are respectively attached to the front side plate 3 and the rear side plate 4 and fixedly connected by welding. This can improve the strength between the separator and the front side plate 3 and the rear side plate 4.

[0067] Furthermore, both ends of the support piece 2 are provided with reinforcing connecting portions 19 that are respectively connected to the front side plate 3 and the rear side plate 4, and the reinforcing connecting portions 19 are located below the dip-coating notch 17. The advantages of this arrangement are that, firstly, it can limit the slide rail laterally to prevent the slide rail from loosening laterally; secondly, it can serve as a reinforcing structure to improve the strength of the connection between the separator and the front side plate 3 and the rear side plate 4.

[0068] Furthermore, the reinforcing connection 19 is a stepped bending structure. One end face of the stepped bending structure is attached to the front side plate 3 and the rear side plate 4 respectively, and is fixedly connected by welding. The other end face of the stepped bending structure is connected to the support piece and the partition piece respectively, which can further improve the strength of the connection between the various structures.

[0069] Furthermore, the reinforcing connection 19 is integrally formed with the support piece 2 and is formed by a stamping process.

[0070] Furthermore, the connection structure includes an upper limiting part 20 and a reinforcing connection part 19. The upper limiting part is disposed on the front side plate 3 and the rear side plate 4, and the upper limiting part is located above the end cap of the slide.

[0071] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A shelf mount, characterized in that, The system includes a frame, partitions, and support plates. The frame includes a front panel and a rear panel. The partitions are flat components with a high cross-section and a narrow width. There are multiple partitions arranged side by side between the front and rear panels, and both ends of the partitions are fixedly connected to the front and rear panels, respectively. Each partition has a support plate at its bottom, which extends laterally from the bottom of the partition to form a support portion for supporting the slide.

2. The shelf mount of claim 1, wherein The separator and support plate are rectangular sheet-like components. The separator and support plate are connected to each other to form a T-shaped component. The two ends of the T-shaped component are connected to the inner surfaces of the front and rear side plates, respectively.

3. The shelf mount of claim 1, wherein The frame also includes a left side plate and a right side plate, which have support plates at their bottoms facing the separator. These support plates extend from the bottoms of the left side plate and the right side plate toward the separator to form a support portion for supporting the slide.

4. The shelf mount of claim 1, wherein The front panel is provided with a mounting structure for installing labels; The frame has side guards on the left and right sides for protecting goods located at the edges; the frame has a front guard for protecting goods located at the front.

5. The article holder of claim 1, wherein The two ends of the separator are respectively provided with dip-molding notches between the front side plate and the rear side plate; Both ends of the separator are provided with bent and welded parts, which are respectively attached to the front side plate and the rear side plate, and are fixedly connected by welding; Both ends of the support plate are provided with reinforcing connecting parts that are respectively connected to the front side plate and the rear side plate, and the reinforcing connecting parts are located below the dip-coating notch; The reinforcing connection is a stepped bending structure. One end face of the stepped bending structure is attached to the front side plate and the rear side plate respectively, and fixedly connected by welding. The other end face of the stepped bending structure is connected to the support piece and the partition piece respectively. The reinforcing connection is integrally formed with the support piece and is formed by a stamping process.

6. A shelf characterized in that, The device includes the shelf and slide rail as described in any one of claims 1-5, wherein a plurality of partitions in the shelf divide the frame into a plurality of slide rail mounting spaces, each slide rail space is equipped with an independent slide rail, and the bottom of each slide rail is supported on the support.

7. The shelf of claim 6, wherein The slide rail and the shelf mounting frame are connected together by a connecting structure; The slide rail includes a roller frame, ball bearings, and a plug.

8. The shelf of claim 7, wherein, The connection structure includes an elastic hook disposed on the plug, which is connected and fixed to the support plate.

9. The shelf of claim 7, wherein, The connection structure includes an upper limit part and a side limit part disposed on the front side plate and the rear side plate. The upper limit part is located above the plug, and there are two side limit parts, which are respectively located on both sides of the plug. Alternatively, the connection structure may include an integral limiting groove disposed on the upper side of the plug and an integral limiting part disposed on the front side plate and the rear side plate, wherein the integral limiting part is embedded in the integral limiting groove.

10. A cold storage cabinet, characterized in that It includes multiple shelves as described in claim 6, with the multiple shelves arranged vertically along the refrigerator.

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