A plastic tray with built-in limiting function

Abstract

This utility model discloses a plastic pallet with built-in limiting function, comprising: a pallet, the pallet being rectangular with rounded corners at its four corners; a top cover plate, the top cover plate being inserted and installed on the top of the pallet; a positioning plate, the top of the positioning plate being rotatably connected to a screw, the screw being threadedly connected to the inner wall of the top cover plate, and elastic limiting rods being evenly installed at the bottom of the positioning plate. This invention relates to the field of plastic pallets, achieving a tight connection between the pallet and the top cover plate through insertion positioning and mechanical locking. Combined with the height-adjustable elastic limiting rods, it can adapt to goods of different sizes and form a three-dimensional fixation, effectively reducing the sliding and collision of goods during transportation and lowering the damage rate of fragile items, precision instruments, and other goods.

Description

Technical Field

[0001] This utility model relates to the field of plastic pallet technology, specifically a plastic pallet with built-in limiting function. Background Technology

[0002] In the fields of logistics, transportation, warehousing, and cargo stacking, plastic pallets have gradually replaced traditional wooden pallets due to their advantages such as light weight, corrosion resistance, and low cost, becoming the core load-bearing tool in industries such as food, electronics, and pharmaceuticals. However, existing plastic pallets generally suffer from a lack of structural functionality and containment mechanisms to limit and position items within them. When goods are placed on ordinary plastic pallets, they are prone to displacement due to bumps, tilting during transportation, or shaking during stacking in storage, and may even slip off the pallet edges, leading to damage. This is especially true for fragile items with delicate packaging, such as glassware, precision instruments, or small loose parts, where the loss rate can reach over 15%. To address this issue, the industry often uses auxiliary methods such as additional binding ropes, metal baffles, or anti-slip mats. However, these methods have significant drawbacks: rope binding is cumbersome, inefficient, and prone to loosening and failure. Utility Model Content

[0003] The purpose of this utility model is to provide a plastic tray with built-in limiting function to solve the problem mentioned in the background art of lacking a limiting and positioning structure for items in the plastic tray.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A plastic tray with built-in limiting function, comprising:

[0006] The tray is rectangular, and the four corners of the tray are rounded.

[0007] A top cover plate, which is inserted and installed on the top of the tray;

[0008] A positioning plate, with a rotatably connected screw at the top of the positioning plate, the screw being threaded to the inner wall of the upper cover plate, and elastic limiting rods evenly installed at the bottom of the positioning plate.

[0009] In a preferred embodiment of this utility model, the bottom of the upper cover plate is provided with a plug-in ring, and the outer wall of the plug-in ring is engaged with the inner wall of the tray.

[0010] In a preferred embodiment of this utility model, hooks are fixedly installed on both the front and rear outer walls of the tray, and hooks that are adapted to the hooks are rotatably connected to the front and rear outer walls of the tray.

[0011] In a preferred embodiment of this utility model, the hook and the buckle cooperate to lock the upper cover and the tray, the top of the upper cover is provided with a groove, and the top of the upper cover is provided with a frame around its perimeter.

[0012] In a preferred embodiment of this utility model, the outer wall of the upper cover plate and the tray are flush, a handwheel is fixedly installed on the top of the screw, and the elastic limiting rod includes a sleeve.

[0013] In a preferred embodiment of this utility model, the sleeve is fixedly installed on the bottom outer wall of the positioning plate, and the inner wall of the sleeve is slidably connected to the limiting rod.

[0014] In a preferred embodiment of this utility model, the top of the limiting rod is connected to the inner wall of the top of the sleeve by a spring, and a protective pad is provided on the bottom outer wall of the limiting rod.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0016] 1. The pallet and the top cover are tightly connected by plug-in positioning and mechanical locking. With the adjustable height elastic limit rod, it can adapt to different sizes of goods and form three-dimensional fixation, effectively reducing the sliding and collision of goods during transportation and reducing the damage rate of fragile items, precision instruments and other goods.

[0017] 2. The design of the top cover being flush with the outer wall of the pallet does not affect the stacking stability. Combined with the positioning structure, it can achieve multi-layer tight stacking, which is convenient for mechanized handling and avoids additional parts occupying space, making it suitable for various scenarios such as logistics transportation and warehousing. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 A schematic diagram of the main structure of a plastic tray with built-in limiting function;

[0020] Figure 2 This is an exploded structural diagram of a plastic tray with built-in limiting function.

[0021] Figure 3 A bottom view of the cover plate of a plastic tray with built-in limiting function;

[0022] Figure 4 A top view of the structure of a plastic pallet with built-in limiting function;

[0023] Figure 5This is an exploded view of the elastic limiting post in a plastic tray with built-in limiting function.

[0024] In the diagram: tray 100, hook 110, top cover 200, plug ring 210, frame 220, hook 230, groove 240, positioning plate 300, screw 310, handwheel 320, sleeve 330, spring 340, limit rod 350. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] Example 1: As Figures 1-5 ,include:

[0027] Tray 100 is set as a rectangle, and the four corners of tray 100 are rounded.

[0028] The top cover 200 is inserted and installed on the top of the tray 100;

[0029] Positioning plate 300, top of positioning plate 300 is rotatably connected screw 310, screw 310 is threaded to the inner wall of upper cover plate 200, and elastic limit rods are evenly installed at the bottom of positioning plate 300.

[0030] The specific application scenario of this embodiment is as follows: The pallet 100 serves as a rectangular load-bearing base, and the rounded corners reduce bumps and damage during handling. The top cover 200 is inserted and installed on the top of the pallet 100, forming a closed cargo-accommodating space. When the screw 310 is rotated, since the screw is threadedly connected to the inner wall of the top cover 200, the positioning plate 300 can be driven to rise and fall vertically, thereby adapting to cargo of different heights. The elastic limiting rod at the bottom of the positioning plate 300 fits tightly against the top of the cargo through its own elastic deformation, which not only prevents the cargo from shaking but also buffers the bumps and impacts during transportation. The overall structure, through the adjustable positioning plate and the elastic limiting, achieves upper and lower limit fixation of the cargo, which is suitable for scenarios that require multi-layer stacking or transportation of fragile items, and can effectively prevent the cargo from shifting within the pallet.

[0031] Example 2: Figure 1 and Figure 2The bottom of the upper cover plate 200 is provided with a plug ring 210. The outer wall of the plug ring 210 is connected to the inner wall of the tray 100. The outer walls of the front and rear sides of the tray 100 are fixedly installed with hooks 230. The outer walls of the front and rear sides of the tray 100 are rotatably connected with hooks 110 that are compatible with the hooks 230. The hooks 110 and the hooks 230 cooperate to lock the upper cover plate 200 and the tray 100. The top of the upper cover plate 200 is provided with a groove 240. The top of the upper cover plate 200 is provided with a frame 220 around its perimeter.

[0032] The specific application scenario of this embodiment is as follows: The top cover 200 is inserted into the inner wall of the pallet 100 through the bottom insertion ring 210 to achieve initial positioning and ensure the accurate relative position of the top cover and the pallet. Rotating the hooks 110 on both sides of the pallet 100 makes them engage with the hooks 230 on the top cover, which can lock the connection between the top cover and the pallet and prevent the top cover from falling off due to vibration during transportation. The groove 240 on the top of the top cover facilitates the insertion of forklift or handling equipment fork teeth, improving the convenience of handling. This structure enhances the overall sealing and stability of the pallet through the dual cooperation of mechanical locking and insertion positioning. It is suitable for transportation scenarios that require dust prevention or prevention of small items falling off, and is especially suitable for cargo transfer in the logistics transit process.

[0033] Example 3: Figure 2 and Figure 4 The outer walls of the top cover plate 200 and the tray 100 are flush. The handwheel 320 is fixedly installed on the top of the screw 310. The elastic limit rod includes a sleeve 330, which is fixedly installed on the bottom outer wall of the positioning plate 300. The inner wall of the sleeve 330 is slidably connected to the limit rod 350. The top of the limit rod 350 is connected to the top inner wall of the sleeve 330 by a spring 340. The bottom outer wall of the limit rod 350 is provided with a protective pad.

[0034] The specific application scenario of this embodiment is as follows: the top cover plate 200 is flush with the outer wall of the pallet 100, ensuring that adjacent pallets fit tightly when stacked, saving storage space. Turning the handwheel 320 can drive the screw 310 to rotate, thereby adjusting the height of the positioning plate 300. The operation is labor-saving and convenient. In the elastic limiting rod, the limiting rod 350 slides in the sleeve 330. The elastic force of the spring 340 makes the limiting rod always have downward pressure, which can adapt to goods of different heights and fit tightly. The protective pad at the bottom of the limiting rod can avoid scratching the surface of the goods, while increasing the friction to further prevent the goods from sliding. This structure, through elastic buffering and adjustable design, can not only firmly fix the goods, but also protect the appearance of the goods. It is suitable for the transportation and storage of goods with high requirements for packaging integrity.

[0035] The working principle of this utility model is as follows: When used by those skilled in the art, the pallet 100 serves as a rectangular load-bearing base, with rounded corners to reduce bumps during handling and provide stable support for the overall structure. The top cover 200 is initially positioned by inserting a bottom insertion ring 210 into the inner wall of the pallet 100, and then is mechanically locked by hooks 110 on both sides of the pallet and hooks 230 on the top cover, preventing the top cover from falling off due to vibration during transportation. At the same time, the top cover is flush with the outer wall of the pallet, ensuring a tight fit when stacked and saving storage space. The positioning plate 300 is threadedly connected to the top cover 200 by a screw 310, and the positioning plate can be driven to rise and fall vertically by turning the handwheel 320 to accommodate goods of different heights. The elastic limiting rod at the bottom of the positioning plate uses spring force to keep it tightly against the top of the goods, achieving adaptive pressure adjustment. This not only securely fixes the goods but also cushions against transport bumps. The protective pad at the bottom of the limiting rod prevents scratching the surface of the goods and increases friction to prevent slippage. The groove 240 on the top of the cover plate facilitates forklift fork insertion, improving handling convenience. The overall structure, through the combination of "plug-in positioning + mechanical locking + elastic limiting + adjustable height," achieves stable fixation of goods of different sizes and types while ensuring safety during transportation and efficient space utilization during storage. It is suitable for various scenarios such as logistics transportation and warehouse stacking, and is especially suitable for fragile items, precision instruments, and other goods with high requirements for fixation and protection.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A plastic pallet with built-in stopper function, characterized in that, include: The tray (100) is rectangular and has rounded corners at its four corners. A top cover (200) is inserted and mounted on top of a tray (100); A positioning plate (300) is provided, with a rotatable connecting screw (310) at the top of the positioning plate (300). The screw (310) is threadedly connected to the inner wall of the upper cover plate (200). Elastic limiting rods are uniformly installed at the bottom of the positioning plate (300).

2. The plastic pallet with built-in stopper function according to claim 1, wherein, The bottom of the upper cover plate (200) is provided with a plug ring (210), and the outer wall of the plug ring (210) is connected to the inner wall of the tray (100) by plugging.

3. The plastic pallet with built-in stopper function according to claim 2, wherein, The tray (100) has hooks (230) fixedly installed on both the front and rear outer walls, and the front and rear outer walls of the tray (100) are rotatably connected to hooks (110) that are compatible with the hooks (230).

4. The plastic pallet with built-in stopper function according to claim 3, wherein, The hook (110) and the hook (230) work together to lock the upper cover (200) and the tray (100). The top of the upper cover (200) has a groove (240) and the top of the upper cover (200) has a frame (220) around it.

5. The plastic pallet with built-in stopper function according to claim 1, wherein, The outer walls of the upper cover plate (200) and the tray (100) are flush, a handwheel (320) is fixedly installed on the top of the screw (310), and the elastic limiting rod includes a sleeve (330).

6. A plastic tray with built-in limiting function according to claim 5, characterized in that, The sleeve (330) is fixedly installed on the bottom outer wall of the positioning plate (300), and the inner wall of the sleeve (330) is slidably connected to the limiting rod (350).

7. The plastic pallet with built-in stopper function according to claim 6, wherein, The top of the limiting rod (350) is connected to the inner wall of the top of the sleeve (330) by a spring (340), and the bottom outer wall of the limiting rod (350) is provided with a protective pad.

Images