Antiskid goods shelf

Abstract

The utility model relates to the technical field of logistics, and discloses an anti-skidding goods shelf which comprises a support and a goods plate, a cross beam is fixedly connected to the support, an inclined layer is arranged on the support, the inclined layer comprises a storage plate, a partition plate and an air bag, the partition plate is fixedly connected with the support and arranged under the storage plate, and rotating rods are arranged in the middles of the two ends of the storage plate. The rotating rod penetrates through the cross beam, the air bag comprises an upper air bag and a lower air bag, the lower air bag is arranged in a gap between the storage plate and the partition plate, the storage plate is provided with a plurality of holes, and the upper air bag is matched with the corresponding holes to prevent goods from falling off; the transmission assembly is used for driving the storage plate to rotate along the central axis of the rotating rod so as to incline the storage plate. The anti-skid goods shelf has the advantages of being anti-skid and improving the convenience of taking goods on a high-layer goods shelf, and the problem that the goods on the high-layer goods shelf are prone to being separated from the goods shelf when being taken is solved.

Description

Technical Field

[0001] This utility model relates to the field of warehousing and logistics technology, specifically to an anti-slip shelf. Background Technology

[0002] With the development of the logistics industry, express delivery stations, requiring large inventory and cargo transportation capabilities, have made shelving an important tool for improving work efficiency. However, many existing shelving systems on the market do not consider the slippage of goods, especially during the picking process, which often causes goods to fall off the shelves, resulting in stacked goods falling off, lost or damaged goods, and other operational hazards. Therefore, improving the safety and stability of goods stacking has always been a pressing issue in the field of shelving technology.

[0003] To address the aforementioned technical problems, Chinese Patent Application No. CN201920867346.X discloses an anti-slip shelf. This shelf features omnidirectional wheels for easy movement, raised protrusions to prevent items from slipping, and connecting grooves that engage with vertical bars and protrusions on the bars for convenient installation. This solves the problems of existing shelves on the market, which lack free movement and easy installation, and are prone to knocking over adjacent goods when retrieving items.

[0004] While this type of anti-slip shelf increases surface friction and prevents items from slipping, it only uses protrusions to increase friction without considering the ease of accessing goods on higher shelves or the stability of the shelf when placed. Because of its uneven surface, goods are actually more difficult to retrieve when being dragged around. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an anti-slip shelf, which has the advantages of being anti-slip and improving the convenience of retrieving goods located on high shelves, thus solving the problem that goods located on high shelves are easily detached from the shelves when being retrieved.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An anti-slip shelf includes a support frame and a shelf, wherein a crossbeam is fixedly connected to the support frame, and the anti-slip shelf further includes:

[0010] An inclined layer is provided on the support, the inclined layer includes a shelf, a partition and multiple airbags, the partition is fixedly connected to the support, the partition is located directly below the shelf, a rotating rod is provided at the middle position of both ends of the shelf and is rotatably connected to a crossbeam, the rotating rod passes through the crossbeam, the airbag is composed of an upper airbag and a lower airbag that are interconnected, the lower airbag is located in the gap between the shelf and the partition, the shelf has multiple holes, and each upper airbag is installed in the corresponding hole;

[0011] The transmission assembly 4 has a transmission assembly at the end of the rotating rod away from the shelf, and the transmission assembly is used to drive the shelf to rotate along the central axis of the rotating rod.

[0012] Preferably, the transmission assembly includes a drive assembly and a limiting assembly. The drive assembly includes a drive gear, a drive shaft, a drive sprocket, a driven sprocket, and a chain. A transmission gear is fixedly connected to the rotating rod. The transmission gear meshes with the drive gear. Both the drive sprocket and the drive gear are connected to the drive shaft via splines. Their function is to drive the drive shaft to rotate when the drive sprocket rotates, so that the drive shaft drives the drive gear to rotate, thereby causing the transmission gear meshing with the drive gear to rotate, thus realizing the function of the shelf being rotatable.

[0013] Preferably, a driven sprocket is rotatably connected to the bracket. The driven sprocket is used to support and change the direction of the chain. The chain is a closed loop chain with the front and rear connected. One end of the chain hangs on one side of the bracket, and the other end is wrapped around the drive sprocket. Pulling the chain drives the drive sprocket to rotate.

[0014] Preferably, the limiting component includes a limiting post and a limiting buckle. The limiting post is fixedly connected to the crossbeam, and the limiting buckle is detachably installed inside the limiting post for insertion into the gap between two adjacent teeth on the drive gear, thereby locking the drive gear. Its function is to facilitate the disassembly and replacement of the buckle, thereby increasing the durability of the shelf.

[0015] Preferably, the limiting post is provided with a groove, and the limiting buckle is inserted into the groove of the limiting post, which improves the convenience of disassembling and installing the buckle.

[0016] Preferably, the crossbeam is further provided with an arc-shaped groove located below the limiting buckle. A spring is provided in the arc-shaped groove. One end of the spring is fixedly connected to the bottom end of the arc-shaped groove, and the other end of the spring is connected to the drive shaft. The drive shaft is engaged with the arc-shaped groove and slides along the inner arc surface of the arc-shaped groove. Its function is to reserve the distance for the drive shaft to disengage from the limiting buckle downwards, thereby realizing the function of gear unlocking.

[0017] Preferably, the cross-section of the arc-shaped slide groove is T-shaped, and a large cylinder is provided at the end of the drive shaft near the crossbeam. The large cylinder slides within the T-shaped groove of the arc-shaped slide groove, which serves to fix the drive shaft within the arc-shaped slide groove, thereby effectively preventing the drive shaft from falling off.

[0018] Preferably, the holes are distributed along the central axis of the rotating rod, the holes are circular, the diameter of the holes increases with the increase of the vertical distance of the holes from the central axis, and the density of the holes increases with the increase of the vertical distance of the holes from the central axis. This design aims to differentiate the friction of the shelf surface, enhance the friction of the shelf edge area, and form a synergistic effect with the larger squeezing airbag force at the edge, thereby effectively preventing goods from falling.

[0019] Preferably, the bottom of the shelf near the partition is provided with a downwardly protruding pressure ring, which is used to squeeze the lower airbag so that the upper airbag protrudes from the hole.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, this utility model provides an anti-slip shelf with the following advantages:

[0022] 1. This anti-slip shelf features an inclined layer, with airbags installed in the gaps between the shelves and partitions. When the shelf is horizontal, the shelf surface remains flat, improving the stability of the goods. When the shelf is tilted, the rotating shelf compresses the airbags, increasing the surface friction of the shelf and preventing goods from falling off the shelf.

[0023] 2. This anti-slip shelf features a transmission component on one side of the support frame. Pulling the chain drives the drive sprocket to rotate, while the drive shaft slides down along the arc-shaped groove to disengage the drive gear from the limit latch, thus unlocking it. The rotation of the drive sprocket drives the drive shaft, which in turn drives the drive gear, causing the transmission gear meshing with the drive gear to rotate. This allows the shelf, integrated with the transmission gear, to rotate. When the chain is stopped, the drive shaft springs back, locking the shelf in place. This means that before taking or placing goods, pulling the chain tilts the shelf at a certain angle, lowering the height of one side and improving the convenience of accessing or placing items on higher shelves. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the anti-slip shelf of this utility model.

[0025] Figure 2 This is a front view of the inclined layer of the anti-slip shelf of this utility model.

[0026] Figure 3This is a schematic diagram of the inclined layer structure of the anti-slip shelf of this utility model.

[0027] Figure 4 This is an exploded view of the inclined layer structure of the anti-slip shelf of this utility model.

[0028] Figure 5 This is a schematic diagram of the airbag structure of the anti-slip shelf of this utility model.

[0029] Figure 6 This is a schematic diagram of the shelf structure of the anti-slip shelf of this utility model.

[0030] Figure 7 This is a side view of the anti-slip shelf of this utility model.

[0031] Figure 8 For the anti-slip shelf of this utility model Figure 7 Enlarged diagram of point A in the middle.

[0032] Figure 9 For the anti-slip shelf of this utility model Figure 7 Enlarged diagram of point B in the middle.

[0033] Figure 10 This is an enlarged schematic diagram of the arc-shaped slide groove of the anti-slip shelf of this utility model.

[0034] Figure 11 This is a schematic diagram of the arc-shaped slide groove structure of the anti-slip shelf of this utility model.

[0035] Figure 12 For the anti-slip shelf of this utility model Figure 11 Enlarged diagram of point B in the middle.

[0036] Figure 13 This is a schematic diagram of the drive component structure of the anti-slip shelf of this utility model.

[0037] In the diagram: 1. Support frame; 11. Crossbeam; 111. Arc-shaped slide; 112. Spring; 2. Cargo plate; 3. Inclined layer; 31. Airbag; 311. Upper airbag; 312. Lower airbag; 32. Partition; 33. Storage plate; 331. Hole; 332. Rotating rod; 3321. Transmission gear; 34. Pressure ring; 4. Transmission assembly; 41. Limiting assembly; 411. Limiting post; 412. Limiting buckle; 42. Drive assembly; 421. Drive gear;

[0038] 422. Drive shaft; 4221. Large cylinder; 423. Drive sprocket; 424. Driven sprocket; 425. Chain. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] Example 1:

[0044] This embodiment provides an anti-slip shelf with the following technical features.

[0045] Please see Figures 1-13 A non-slip shelving unit includes a support frame 1 and a shelf 2, designed to improve the stability of goods placed on the shelving and the convenience of picking up goods. A crossbeam 11 is fixedly connected to the support frame 1. Figures 4-6 As shown, the anti-slip shelf also includes:

[0046] An inclined layer 3 is provided at the top layer of the support 1. The inclined layer 3 includes a shelf 33, a partition 32 and 28 airbags 31. The partition 32 is fixed to the support 1 by bolts. The partition 32 is located directly below the shelf 33. A rotating rod 332 is rotatably connected to the crossbeam 11 at the middle position of both ends of the shelf 33. The rotating rod 332 passes through the crossbeam 11. The airbags 31 are composed of an upper airbag 311 and a lower airbag 312 that are interconnected. The lower airbag 312 is located in the gap between the shelf 33 and the partition 32. The shelf 33 is provided with multiple holes 331. Each upper airbag 311 is installed in the corresponding hole 331.

[0047] Transmission component 4, such as Figures 7-13 A transmission component 4 is provided at the end of the rotating rod 332 away from the shelf 33. The transmission component 4 is used to drive the shelf 33 to rotate along the central axis of the rotating rod 332.

[0048] Furthermore, the transmission assembly 4 includes a drive assembly 42 and a limiting assembly 41. The drive assembly 42 includes a drive gear 421, a drive shaft 422, a drive sprocket 423, a driven sprocket 424, and a chain 425. A transmission gear 3321 is fixedly connected to the rotating rod 332. The transmission gear 3321 meshes with the drive gear 421. Both the drive sprocket 423 and the drive gear 421 are connected to the drive shaft 422 via splines. Their function is to drive the drive shaft 422 to rotate when the drive sprocket 423 rotates, so that the drive shaft 422 drives the drive gear 421 to rotate, thereby causing the transmission gear 3321 meshing with the drive gear 421 to rotate, thus realizing the function of the shelf 33 being rotatable.

[0049] Furthermore, a driven sprocket 424 is rotatably connected to the bracket 1. The driven sprocket 424 is used to support and change the direction of the chain 425. The chain 425 is a closed-loop chain with the front and rear connected. One end of the chain 425 hangs on one side of the bracket 1, and the other end is wrapped around the drive sprocket 423. By pulling the chain 425, the drive sprocket 423 is driven to rotate.

[0050] Furthermore, the limiting component 41 includes a limiting post 411 and a limiting buckle 412. The limiting post 411 is fixedly connected to the crossbeam 11, and the limiting buckle 412 is detachably installed in the limiting post 411. It is used to insert into the gap between two adjacent teeth on the drive gear 421, thereby locking the drive gear 421. Its function is to facilitate the disassembly and replacement of the limiting buckle 412, thereby increasing the durability of the shelf.

[0051] Furthermore, the limiting post 411 is provided with a groove, and the limiting buckle 412 is inserted into the groove of the limiting post 411. Its function is to improve the convenience of disassembling and installing the limiting buckle 412.

[0052] Furthermore, the crossbeam 11 is also provided with an arc-shaped slide groove 111 located below the limiting buckle 412. A spring 112 is provided in the arc-shaped slide groove 111. One end of the spring 112 is fixedly connected to the bottom end of the arc-shaped slide groove 111, and the other end of the spring 112 is connected to the drive shaft 422. The drive shaft 422 is engaged with the arc-shaped slide groove 111, and the drive shaft 422 slides along the inner arc surface of the arc-shaped slide groove 111. Its function is to reserve the distance for the drive shaft 422 to disengage downward from the limiting buckle 412, thereby realizing the function of unlocking the drive gear 421.

[0053] Furthermore, the cross-section of the arc-shaped slide groove 111 is T-shaped, and a large cylinder 4221 is provided at the end of the drive shaft 422 near the crossbeam. The large cylinder 4221 slides in the T-shaped groove of the arc-shaped slide groove 111, which serves to fix the drive shaft 422 in the arc-shaped slide groove 111, thereby effectively preventing the drive shaft 422 from falling off.

[0054] Furthermore, the holes 331 are distributed along the central axis of the rotating rod. The holes 331 are circular, and the diameter of the holes 331 increases with the increase of the vertical distance of the holes 331 from the central axis. The density of the holes 331 also increases with the increase of the vertical distance of the holes 331 from the central axis. This design aims to differentiate the friction of the surface of the shelf 33, enhance the friction of the edge area of ​​the shelf 33, and form a synergistic effect with the force of the airbag 311 under the greater pressure of the edge, thereby effectively preventing the goods from falling.

[0055] Furthermore, the bottom of the shelf 33 near the partition is provided with a downwardly protruding pressure ring 34, which is used to squeeze the lower airbag 312 so that the upper airbag 311 protrudes from the hole 331.

[0056] Working principle:

[0057] The shelving unit consists of four support columns 1 and two pallets 2. The support columns 1 are all L-shaped support pillars, and the projection of the four support columns 1 on the horizontal plane is rectangular. Threaded holes are evenly distributed on the inner side of the support columns 1. The pallets 2 are bolted to the support columns 1. There are horizontally fixed crossbeams 11 between adjacent support columns 1 on the left and right sides of the shelving unit, and the support columns 1 and crossbeams 11 are fixedly connected by bolts.

[0058] The partition 32 is bolted to the bracket 1. A rotatable shelf 33 is provided above the partition 32. Rotating rods 332 are welded on both sides of the shelf 33. The rotating rods 332 pass through the crossbeams 11 on both sides. The shelf 33 is provided with evenly distributed holes 331. An airbag 31 corresponding to the holes 331 is provided in the gap between the shelf 33 and the partition 32. The airbag 31 includes an upper airbag 311 and a lower airbag 312. The lower airbag 312 is fixed to the partition 32 with industrial-strength tape or adhesive. The lower end of the upper airbag 311 is bent to facilitate the protrusion and retraction of the airbag 31. A pressure ring 34 is provided on the side of the shelf 33 near the partition 32. The shelf 33 is welded to the pressure ring 34 to compress the lower airbag 312.

[0059] A transmission gear 3321 is welded onto the rotating rod 332 on one side of the shelf 33. A transmission assembly 4 is provided at the end of the rotating rod 332 away from the shelf 33. The transmission assembly 4 includes a drive assembly 42 and a limiting assembly 41. The drive assembly 42 includes a drive gear 421, a drive shaft 422, a drive sprocket 423, a driven sprocket 424, and a chain 425. The limiting assembly 41 includes a limiting post 411 and a limiting buckle 412. One side of the rotating rod 332 is the driven sprocket 424, which is rotatably connected to the bracket 1. The other side of the rotating rod 332 includes the drive gear 421, the drive shaft 422, the drive sprocket 423, the limiting post 411, and the limiting buckle 412.

[0060] The transmission gear 3321 meshes with the drive gear 421. The drive sprocket 423 and the drive gear 421 are both connected to the drive shaft 422 via splines. One end of the chain 425 hangs on one side of the bracket 1 and the other end is wrapped around the drive sprocket 423. Pulling the chain 425 drives the drive sprocket 423 to rotate.

[0061] The limiting post 411 is welded to the crossbeam 11. The lower surface of the limiting post 411 is provided with a groove on the side near the drive shaft 422. The limiting buckle 432 is detachably installed in the limiting post 431 and is used to insert into the gap between two adjacent teeth on the drive gear 421.

[0062] The crossbeam 11 is also provided with an arc-shaped slide groove 111 located below the limiting buckle 412. A spring 112 is provided in the arc-shaped slide groove 111. One end of the spring 112 is welded to the bottom end of the arc-shaped slide groove 111, and the other end of the spring 112 is connected to the hook at the lower end of the drive shaft 422. The drive shaft 422 is fitted into the arc-shaped slide groove 111, and the drive shaft 422 slides along the inner arc surface of the arc-shaped slide groove 111.

[0063] Pulling the chain 425 causes the transmission gear to rotate, turning the vertical chain 425 into a horizontal chain 425. The horizontal chain 425 then drives the drive gear 421 to slide downwards. The drive gear 421 is splinedly connected to the drive shaft 422, causing the drive shaft 422 to slide along the inner arc surface of the arc-shaped groove 111. This allows the drive gear 421, splinedly connected to the drive shaft 422, to slide downwards and disengage from the limit latch 412, achieving the unlocked state and causing the shelf 33 to begin rotating.

[0064] Pulling the chain 425 causes the drive gear 421 to rotate the transmission gear 3321, causing one side of the shelf 33 to tilt downwards. When the chain 425 is stopped, the built-in spring 112 rebounds, causing the drive shaft 422 to slide upwards, thereby allowing the limit buckle 412 to be inserted into the gap between two adjacent teeth of the drive gear 421, achieving a locked state and keeping the shelf 33 stable.

[0065] When the shelf 33 tilts downward, the tilted end of the shelf 33 presses down on the airbag 31, causing the airbag 31 to bulge out from the hole 331. The greater the vertical distance between the hole 331 at the tilted end of the shelf 33 and the line of the rotating rod 332, the greater the squeezing force on the airbag 31, the more obvious the upward bulge, and the greater the increased friction. This causes the goods to slide towards the tilted end of the shelf 33, making it convenient to retrieve the goods and preventing them from falling off the shelf.

[0066] Pull the chain 425 again to disengage the drive gear 421 from the limit buckle 412, achieving the unlocked state. This causes the shelf 33 to start rotating. Once it reaches a horizontal position, stop pulling the chain 425. The drive gear 421 and the limit buckle 412 will relock, achieving the locked state. The airbag 31 will rebound and hide in the gap between the shelf 33 and the partition 32, maintaining the flatness of the shelf 33 surface to improve the stability of the goods placement.

[0067] In summary, this anti-slip shelf, by setting an inclined layer 3, that is, setting an airbag 31 in the gap between the shelf 33 and the partition 32, ensures that when the shelf is in a horizontal position, the surface of the shelf 33 is flat, improving the stability of the goods placement. When the shelf is tilted, the rotatable shelf 33 compresses the airbag 31, increasing the surface friction of the shelf 33, thus preventing the goods from falling off the shelf when the shelf 33 is tilted.

[0068] This anti-slip shelf also features a transmission assembly 4 on one side of the support 1. By pulling the chain 425, the drive sprocket 423 rotates, while the drive shaft 422 slides down along the arc-shaped groove 111 to disengage the drive gear 421 from the limit buckle 412, thus unlocking the shelf. When the drive sprocket 423 rotates, it drives the drive shaft 422 to rotate, which in turn drives the drive gear 421 to rotate. This causes the transmission gear 3321, which meshes with the drive gear 421, to rotate, enabling the shelf 33, which is integrated with the transmission gear 3321, to rotate. When the chain 425 is stopped, the drive shaft 422 springs back, locking the shelf 33 in place. This prevents the shelf from rotating. In other words, before taking or placing goods, pulling the chain 425 tilts the shelf 33 at a certain angle, lowering the height of one side of the shelf 33 and improving the convenience of taking or placing goods on higher shelves.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0070] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-slip shelf, comprising a support frame (1) and a shelf (2), wherein a crossbeam (11) is fixedly connected to the support frame (1), characterized in that, The anti-slip shelf also includes: An inclined layer (3) is provided on the support (1). The inclined layer (3) includes a shelf (33), a partition (32) and multiple airbags (31). The partition (32) is fixedly connected to the support (1). The partition (32) is located directly below the shelf (33). A rotating rod (332) is rotatably connected to the crossbeam (11) at the middle position of both ends of the shelf (33). The rotating rod (332) passes through the crossbeam (11). The airbag (31) is composed of an upper airbag (311) and a lower airbag (312) that are interconnected. The lower airbag (312) is disposed in the gap between the shelf (33) and the partition (32). The shelf (33) is provided with a plurality of holes (331), and each upper airbag (311) is installed in the corresponding hole (331). The transmission assembly (4) is provided at one end of the rotating rod (332) away from the shelf (33). The transmission assembly (4) is used to drive the shelf (33) to rotate along the central axis of the rotating rod (332).

2. The anti-slip shelf according to claim 1, characterized in that, The transmission assembly (4) includes a drive assembly (42) and a limiting assembly (41). The drive assembly (42) includes a drive gear (421), a drive shaft (422), a drive sprocket (423), a driven sprocket (424), and a chain (425). A transmission gear (3321) is fixedly connected to the rotating rod (332). The transmission gear (3321) meshes with the drive gear (421). The drive sprocket (423) and the drive gear (421) are both connected to the drive shaft (422) via splines.

3. The anti-slip shelf according to claim 2, characterized in that, A driven sprocket (424) is rotatably connected to the bracket (1). The driven sprocket (424) is used to support and change the direction of the chain (425). The chain (425) is a closed-loop chain connected front and back. One end of the chain (425) hangs on one side of the bracket (1), and the other end is wrapped around the drive sprocket (423). By pulling the chain (425), the drive sprocket (423) is driven to rotate.

4. The anti-slip shelf according to claim 2, characterized in that, The limiting component (41) includes a limiting post (411) and a limiting buckle (412). The limiting post (411) is fixedly connected to the crossbeam (11), and the limiting buckle (412) is detachably installed in the limiting post (411) for insertion into the gap between two adjacent teeth on the drive gear (421) to lock the drive gear (421).

5. The anti-slip shelf according to claim 4, characterized in that, The limiting post (411) is provided with a groove, and the limiting buckle (412) is inserted into the groove of the limiting post (411).

6. The anti-slip shelf according to claim 4, characterized in that, The crossbeam (11) is also provided with an arc-shaped slide groove (111) located below the limiting buckle (412). A spring (112) is provided in the arc-shaped slide groove (111). One end of the spring (112) is fixedly connected to the bottom end of the arc-shaped slide groove (111), and the other end of the spring (112) is connected to the drive shaft (422). The drive shaft (422) is engaged with the arc-shaped slide groove (111), and the drive shaft (422) slides along the inner arc surface of the arc-shaped slide groove (111).

7. The anti-slip shelf according to claim 6, characterized in that, The cross section of the arc-shaped slide groove (111) is T-shaped, and a large cylinder (4221) is provided at the end of the drive shaft (422) near the crossbeam. The large cylinder (4221) slides in the T-shaped groove of the arc-shaped slide groove (111).

8. The anti-slip shelf according to claim 1, characterized in that, The holes (331) are distributed along the central axis of the rotating rod. The holes (331) are circular. The diameter of the holes (331) increases with the increase of the vertical distance of the holes (331) from the central axis. The density of the holes (331) distribution also increases with the increase of the vertical distance of the holes (331) from the central axis.

9. The anti-slip shelf according to claim 1, characterized in that, The shelf (33) has a downward protruding pressure ring (34) near the bottom of the partition. The pressure ring (34) is used to squeeze the lower airbag (312) so that the upper airbag (311) protrudes from the hole (331).

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