A nestable stackable plastic tote

Abstract

The utility model relates to the technical field of plastic turnover box, especially a nestable plastic turnover box, the nestable plastic turnover box, including the box, the box top symmetry is equipped with the positioning hole, the box bottom symmetry is fixedly connected with the locating post, the box outside is installed with self -locking mechanism, and self -locking mechanism can make the turnover box nestable stacking through the grafting connection mode, can greatly promote the stability of stacking, can effectively resist the transportation jolt, the handling impact and so on external force impact after the close engagement, prevents the box body from falling and collapsing, guarantees the goods safety, the utility model discloses through the cooperation of locking lever and locking block and connects the locking of multiple plastic turnover boxes, prevents the problem that the plastic turnover box appears unstable and unbalanced center of gravity in the stacking process and leads to the dumping.

Description

Technical Field

[0001] This utility model relates to the field of plastic turnover box technology, specifically a nestable and stackable plastic turnover box. Background Technology

[0002] Plastic turnover boxes are logistics containers made from high-density polyethylene or polypropylene and other high-quality plastics through injection molding and other processes. They feature standardized dimensions and are cleverly designed for nesting and stacking. When empty, they can be nested together to save storage space, and when loaded with goods, they can be stably stacked to fully utilize vertical space. Their smooth surface makes them easy to clean and label, and they are also durable and resistant to chemical corrosion. Suitable for warehousing, logistics, manufacturing, retail, agriculture, and many other industries, they are used for the storage, handling, transportation, and display of goods, making them an indispensable tool in modern supply chain systems.

[0003] Existing plastic crates often exhibit poor stability when nested and stacked due to structural design deficiencies. The stacking slots and protrusions of some crates are not precisely matched, making it difficult for them to fit tightly and prone to slipping under slight external force. The friction design of the nesting parts is also flawed; either too low a friction factor causes the nested crates to separate automatically during handling, or too high a friction factor increases the difficulty of nesting and removing them. Furthermore, many crates lack effective stacking locking mechanisms, allowing relative displacement between crates during multi-layer stacking or transport bumps, potentially leading to the entire stack collapsing. This poses safety hazards for storage and transportation, and reduces logistics efficiency.

[0004] To address this, we propose a nestable and stackable plastic turnover box. Utility Model Content

[0005] The purpose of this invention is to provide a nestable and stackable plastic turnover box to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a nestable and stackable plastic turnover box, comprising:

[0007] The box body has symmetrically opened positioning holes on the top and symmetrically fixedly connected positioning posts on the bottom.

[0008] The self-locking mechanism is installed on the outside of the box. The self-locking mechanism includes a moving groove. Moving grooves are opened on both sides of the box. Moving blocks are slidably installed inside the moving grooves. Connecting blocks are fixedly connected to both sides of the moving blocks.

[0009] Preferably, the inner wall of the box is symmetrically provided with sliding grooves, and sliding blocks are slidably installed inside the sliding grooves. A partition plate is fixedly connected between two sliding blocks.

[0010] Preferably, the self-locking mechanism further includes a locking rod. The locking rod is fixedly connected to the bottom of the connecting block, and a fixing plate is symmetrically fixedly connected to the bottom of the box. A telescopic rod is fixedly connected to the top of the fixing plate, and the other end of the telescopic rod is fixedly connected to the moving block. A spring is installed on the outside of the telescopic rod. The weight of the upper box acts on the support plates on both sides of the lower box, causing the support plates to drive the movable plate to slide upward along the movable groove. The limiting block at the front end of the movable plate moves accordingly, squeezing the pressing plate. After being squeezed, the pressing plate rotates around the rotating rod, and one end of it exerts a squeezing force on the connecting block, causing the connecting block to drive the moving block to slide downward along the movable groove.

[0011] Preferably, rotating rods are symmetrically mounted on both sides of the housing, and a pressing plate is fixedly connected to the outer side of each rotating rod. One end of the pressing plate contacts the outer side of the connecting block. Symmetrical movable slots are formed on both sides of the housing, and movable plates are slidably mounted inside each movable slot. A limit block is fixedly connected to the front end of each movable plate, and the other end of the pressing plate contacts the outer side of the limit block. A support plate is fixedly connected to the bottom of each movable plate. As the moving block moves downward, it compresses the telescopic rod on the fixed plate, causing it to retract. The spring on the outer side of the telescopic rod is compressed and stores elastic potential energy. As the moving block moves downward, the locking rod at the bottom of the connecting block rises synchronously and precisely inserts into the locking holes inside the locking blocks on both sides of the upper housing.

[0012] Preferably, locking blocks are symmetrically fixedly connected to both sides of the box body, and locking holes are symmetrically opened inside the locking blocks, with the locking holes having the same size and shape as the locking rods.

[0013] Preferably, the front and rear ends of the housing are fixedly connected with reinforcing ribs.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by using a self-locking mechanism to nest and stack turnover boxes, the stability of the stack can be greatly improved. After the boxes are tightly interlocked, they can effectively resist external impacts such as transportation bumps and handling collisions, prevent the boxes from slipping and collapsing, and ensure the safety of goods. At the same time, this connection method is simple and quick to operate, requiring no complicated tools or professional skills. Workers can quickly complete the nesting, stacking and disassembling of turnover boxes, significantly improving the efficiency of logistics operations. Attached Figure Description

[0015] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0016] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the plastic turnover box of this utility model;

[0018] Figure 4 This is a schematic diagram of the self-locking mechanism of this utility model.

[0019] In the diagram: 1. Box body; 2. Positioning hole; 3. Positioning post; 4. Sliding groove; 5. Sliding block; 6. Divider plate; 7. Moving groove; 8. Moving block; 9. Connecting block; 10. Locking rod; 11. Fixing plate; 12. Telescopic rod; 13. Spring; 14. Rotating rod; 15. Pressing plate; 16. Movable groove; 17. Movable plate; 18. Limiting block; 19. Support plate; 20. Locking block; 21. Locking hole; 22. Reinforcing rib. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 A nestable and stackable plastic turnover box, comprising:

[0022] Box 1, the top of which is symmetrically provided with positioning holes 2, and the bottom of which is symmetrically fixedly connected with positioning posts 3;

[0023] The self-locking mechanism is installed on the outside of the housing 1. The self-locking mechanism includes a moving groove 7. The moving groove 7 is opened on both sides of the housing 1. A moving block 8 is slidably installed inside the moving groove 7. A connecting block 9 is fixedly connected to both sides of the moving block 8.

[0024] Please see Figure 3 The inner wall of the box 1 is symmetrically provided with sliding grooves 4, and sliding blocks 5 are slidably installed inside the sliding grooves 4. A partition plate 6 is fixedly connected between two sliding blocks 5.

[0025] Please see Figure 4 The self-locking mechanism also includes a locking rod 10. The locking rod 10 is fixedly connected to the bottom of the connecting block 9. A fixing plate 11 is symmetrically fixedly connected to the bottom of the box 1. A telescopic rod 12 is fixedly connected to the top of the fixing plate 11, and the other end of the telescopic rod 12 is fixedly connected to the moving block 8. A spring 13 is installed on the outside of the telescopic rod 12. The gravity of the upper box 1 will act on the support plates 19 on both sides of the lower box 1, causing the support plates 19 to drive the movable plate 17 to slide upward along the movable groove 16. The limiting block 18 at the front end of the movable plate 17 moves accordingly, squeezing the pressing plate 15. After being squeezed, the pressing plate 15 rotates around the rotating rod 14, and one end of it generates a squeezing force on the connecting block 9, causing the connecting block 9 to drive the moving block 8 to slide downward along the movable groove 7.

[0026] Please see Figure 4 The housing 1 has symmetrical rotating rods 14 mounted on both sides. A pressing plate 15 is fixedly connected to the outer side of each rotating rod 14, with one end of the pressing plate 15 contacting the outer side of the connecting block 9. The housing 1 has symmetrical movable slots 16 on both sides, with a movable plate 17 slidably mounted inside each slot. A limit block 18 is fixedly connected to the front end of the movable plate 17, and the other end of the pressing plate 15 contacts the outer side of the limit block 18. A support plate 19 is fixedly connected to the bottom of the movable plate 17. As the moving block 8 moves downward, it compresses the telescopic rod 12 on the fixed plate 11, causing it to retract. The spring 13 on the outer side of the telescopic rod 12 is compressed and stores elastic potential energy. As the moving block 8 moves downward, the locking rod 10 at the bottom of the connecting block 9 rises synchronously and precisely inserts into the locking holes 21 inside the locking blocks 20 on both sides of the upper housing 1.

[0027] Please see Figure 3 The box body 1 is symmetrically fixedly connected with locking blocks 20 on both sides. The locking blocks 20 are symmetrically provided with locking holes 21 inside, and the locking holes 21 are the same size and shape as the locking rod 10.

[0028] Please see Figure 1 The front and rear ends of the box body 1 are fixedly connected with reinforcing ribs 22.

[0029] Working Principle: When nesting and stacking turnover boxes, initial positioning is achieved first through the positioning hole 2 on the top of box 1 and the positioning post 3 on the bottom of another box 1, ensuring the alignment of the upper and lower boxes 1. At this time, the self-locking mechanism is activated. The gravity of the upper box 1 acts on the support plates 19 on both sides of the lower box 1, causing the support plates 19 to drive the movable plate 17 to slide upward along the movable groove 16. The limiting block 18 at the front end of the movable plate 17 moves accordingly, pressing the compression plate 15. After being compressed, the compression plate 15 rotates around the rotating rod 14, and one end of it exerts a compressive force on the connecting block 9, causing the connecting block 9 to drive the moving block 8 to slide downward along the movable groove 7. As the moving block 8 moves downward, it compresses the telescopic rod 12 on the fixed plate 11 to retract, and the spring 13 on the outside of the telescopic rod 12 is compressed and stores elastic potential energy. As the moving block 8 moves down, the locking rod 10 at the bottom of the connecting block 9 rises simultaneously and is precisely inserted into the locking holes 21 inside the locking blocks 20 on both sides of the upper box 1. The upper and lower boxes 1 are tightly locked through the insertion connection, which greatly improves the stacking stability and effectively resists external impacts such as transportation bumps and handling collisions.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0031] 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 nestable and stackable plastic turnover box, characterized in that, include: The box body (1) has symmetrically opened positioning holes (2) on the top and symmetrically fixedly connected positioning columns (3) at the bottom. The self-locking mechanism is installed on the outside of the box (1). The self-locking mechanism includes a moving groove (7). The moving groove (7) is opened on both sides of the box (1). A moving block (8) is slidably installed inside the moving groove (7). A connecting block (9) is fixedly connected to both sides of the moving block (8).

2. The nestable and stackable plastic turnover box according to claim 1, characterized in that: The inner wall of the box (1) is symmetrically provided with sliding grooves (4), and sliding blocks (5) are slidably installed inside the sliding grooves (4). A partition plate (6) is fixedly connected between the two sliding blocks (5).

3. The nestable and stackable plastic turnover box according to claim 1, characterized in that: The self-locking mechanism also includes a locking rod (10), the bottom of the connecting block (9) is fixedly connected to the locking rod (10), the bottom of the box (1) is symmetrically fixedly connected to a fixing plate (11), the top of the fixing plate (11) is fixedly connected to a telescopic rod (12), and the other end of the telescopic rod (12) is fixedly connected to the moving block (8), and a spring (13) is installed on the outside of the telescopic rod (12).

4. A nestable and stackable plastic turnover box according to claim 1, characterized in that: The box body (1) is symmetrically mounted with rotating rods (14) on both sides. A pressing plate (15) is fixedly connected to the outside of the rotating rod (14), and one end of the pressing plate (15) contacts the outside of the connecting block (9). The box body (1) is symmetrically provided with movable grooves (16) on both sides. A movable plate (17) is slidably installed inside the movable groove (16). A limit block (18) is fixedly connected to the front end of the movable plate (17), and the other end of the pressing plate (15) contacts the outside of the limit block (18). A support plate (19) is fixedly connected to the bottom of the movable plate (17).

5. A nestable and stackable plastic turnover box according to claim 1, characterized in that: The box (1) is symmetrically fixedly connected with locking blocks (20) on both sides. The locking blocks (20) are symmetrically provided with locking holes (21) inside, and the locking holes (21) are the same size and shape as the locking rod (10).

6. A nestable and stackable plastic turnover box according to claim 1, characterized in that: The front and rear ends of the box (1) are fixedly connected with reinforcing ribs (22).

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