Plastic box convenient to move

Through the combined design of flange, through-hole, cover and roller, combined with the friction block fixing structure of the fixed tube and sliding rod, the problem of crushing damage to the items by the roller during the stacking process of the plastic box is solved, achieving the effect of convenient movement and stable stacking.

CN223174570UActive Publication Date: 2025-08-01JIANGSU HONGSHENG NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202422241226.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-08-01
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

During the stacking process of existing plastic boxes, the rollers are prone to enter the interior of the lower box, resulting in crushing and damage to the internal items, and it is difficult to achieve convenient movement and stable stacking at the same time.

Method used

The flange, through-hole, cover and roller structure are designed so that the roller can be inserted into the through-hole of the flange when stacking. Combined with the design of the fixed tube, sliding rod and friction block, the plastic box is fixed or moved by friction, thereby enhancing the connection strength and stability.

Benefits of technology

It realizes the convenience of the plastic box during movement, and at the same time, it avoids the rollers squeezing and damage to the internal items when stacking, and improves the neatness and stability of the stacking, enhancing the connection strength and fixing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic boxes, in particular to a plastic box convenient to move. According to the technical scheme, the plastic box comprises a plastic box body, a turned-over edge is arranged at the edge position of the upper surface of the plastic box body, housings are arranged at the positions, close to the two sides of the lower surface, of the front surface and the rear surface of the plastic box body correspondingly, and rolling wheels are rotationally installed in the four housings through wheel shafts correspondingly; penetrating openings are formed in the positions, above the four rolling wheels, of the upper surface of the turned-over edge. The plastic box is convenient to move in the using process, meanwhile, the plastic boxes are convenient to stack, and in the stacking process, the idler wheels cannot cause extrusion damage to objects placed in the box body.
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Description

Technical Field

[0001] The utility model relates to the technical field of plastic boxes, in particular to a plastic box convenient to move. Background Art

[0002] A plastic box is a storage container made of plastic materials, which has the advantages of being light, waterproof, corrosion-resistant, etc., and is widely used in the fields of logistics transportation, household storage, industrial production, etc.

[0003] At present, in order to facilitate the movement of the plastic box during use, rollers are usually arranged at the bottom of the box body. However, during the stacking process of plastic boxes, the rollers at the bottom of the upper box body will enter the interior of the lower box body, causing extrusion damage to the items placed inside the lower box body. For this reason, we propose a plastic box convenient to move. Content of the Utility Model

[0004] The purpose of the utility model is to provide a plastic box convenient to move, which has the advantages of facilitating the movement of the plastic box during use, facilitating the stacking of plastic boxes, and the rollers will not cause extrusion damage to the items placed inside the box body during the stacking process, and solves the problem that at present, in order to facilitate the movement of the plastic box during use, rollers are usually arranged at the bottom of the box body. However, during the stacking process of plastic boxes, the rollers at the bottom of the upper box body will enter the interior of the lower box body, causing extrusion damage to the items placed inside the lower box body.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A plastic box convenient to move, including a plastic box body, a flanging is arranged at the edge position of the upper surface of the plastic box body, covers are arranged at both sides of the lower surface near the front surface and the rear surface of the plastic box body, rollers are rotatably installed inside the four covers through wheel axles, and through holes are arranged at the positions above the four rollers on the upper surface of the flanging.

[0006] Preferably, reinforcing blocks are arranged between the upper surfaces of the four covers and the outer surface of the plastic box body.

[0007] Preferably, fixed tubes are arranged at both sides of the outer surface of the plastic box body, sliding rods are movably inserted inside the two fixed tubes, friction blocks are fixedly installed on the lower surfaces of the two sliding rods, lifting chutes are arranged at the positions near the upper surface on the outer sides of the two fixed tubes, and limiting sliders are fixedly installed at the positions near the upper surface on the outer surfaces of the two sliding rods.

[0008] Preferably, lifting blocks are fixedly installed on the upper surfaces of the two sliding rods.

[0009] Preferably, limiting grooves are arranged on the upper surfaces of the two fixed tubes.

[0010] Preferably, limiting rings are fixedly installed at positions below the limiting lifting sliding grooves on the inner walls of the two fixing pipes. Helical springs are fixedly connected to the outer surfaces of the two sliding rods at positions below the limiting rings, and the helical springs are helically wound around the outer surfaces of the sliding rods.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By providing the plastic box body, flanging, through holes, cover shell, wheel axle and rollers, the present utility model achieves the effects of facilitating the movement of the plastic box during use and also facilitating the stacking of plastic boxes. Moreover, during the stacking process, the rollers will not cause extrusion damage to the items placed inside the box body. The plastic box body can be moved through the four rollers, which facilitates the use of the plastic box body. When it is necessary to stack the plastic box body, the rollers on the upper plastic box body are inserted into the through holes on the flanging of the lower plastic box body, which facilitates the stacking of the plastic box body. At the same time, during the stacking process, the through holes and rollers play a positioning role, making the stacking of the plastic box body neater, preventing tipping, and for the stacked plastic box body, the rollers will not enter the inside of the plastic box body, so they will not cause extrusion damage to the items placed inside the plastic box body.

[0013] 2. By providing the strengthening blocks, the connection strength and stress strength between the cover shell and the plastic box body are improved, preventing cracks or fractures between the cover shell and the plastic box body.

[0014] 3. By providing the fixing pipes, sliding rods, friction blocks, limiting sliders and lifting sliding grooves, the present utility model achieves the effect of facilitating the fixing of the plastic box. When it is necessary to fix the plastic box body, the limiting sliders are made to enter the inside of the lifting sliding grooves, then the sliding rods descend, and the friction blocks contact the ground, and the plastic box body is fixed through the frictional force, preventing it from moving through the rollers. When it is necessary to move the plastic box body, the sliding rods are lifted and rotated, so that the limiting sliders are separated from the lifting sliding grooves and are staggered with each other. Then the limiting sliders are located on the upper surface of the fixing pipes, and the friction blocks are separated from the ground, and the plastic box body can be moved through the rollers.

[0015] 4. By providing the helical spring limiting rings, the present utility model achieves the effect of further improving the stability of the plastic box after fixing and preventing the plastic box from sliding. The elastic force of the helical spring acts on the friction blocks through the sliding rods, increasing the frictional force, preventing the plastic box from sliding, and improving its stability after fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0017] Figure 2Schematic perspective view of a partial fixed tube of the present utility model;

[0018] Figure 3 Schematic main sectional view of the present utility model;

[0019] Figure 4 Schematic main sectional view of a partial fixed tube of the present utility model.

[0020] Reference numerals: 1, main body of plastic box; 2, flanging; 3, through hole; 4, strengthening block; 5, cover shell; 6, roller; 7, wheel axle; 8, fixed tube; 9, friction block; 10, sliding rod; 11, limiting slider; 12, lifting chute; 13, lifting block; 14, limiting groove; 15, spiral spring; 16, limiting ring. Detailed implementation manners

[0021] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] As Figure 1 and Figure 3 shown, a plastic box convenient for moving proposed by the present utility model includes a plastic box convenient for moving, including a main body 1 of the plastic box. The main body 1 of the plastic box is made of materials such as polypropylene through an injection molding process, and is hollow inside and open at the upper part. A flanging 2 is provided at the edge position of the upper surface of the main body 1 of the plastic box. The flanging 2 and the main body 1 of the plastic box are integrally injection molded. Cover shells 5 are provided at both sides near the lower surface of the front surface and the rear surface of the main body 1 of the plastic box. The cover shells 5 and the main body 1 of the plastic box are integrally injection molded and are hollow inside and open at the lower part. Four rollers 6 are rotatably installed inside the four cover shells 5 through wheel axles 7. The main body 1 of the plastic box moves through the four rollers 6. Part of the rollers 6 is located outside the cover shells 5. Through holes 3 are provided at the upper surface of the flanging 2 above the four rollers 6. The size of the through holes 3 is adapted to the rollers 6, that is, the part of the rollers 6 located outside the cover shells 5 can be inserted into the through holes 3. Strengthening blocks 4 are provided between the upper surfaces of the four cover shells 5 and the outer surface of the main body 1 of the plastic box. The strengthening blocks 4 and the main body 1 of the plastic box are integrally injection molded. The strengthening blocks 4 improve the connection strength and stress strength between the cover shells 5 and the main body 1 of the plastic box, and prevent cracks or fractures from occurring between the cover shells 5 and the main body 1 of the plastic box.

[0024] When the utility model is in use, the plastic box body 1 can be moved through four rollers 6, which facilitates the use of the plastic box body 1. When the plastic box body 1 needs to be stacked, the rollers 6 on the upper plastic box body 1 are inserted into the through holes 3 on the flanges 2 of the lower plastic box body 1, which facilitates the stacking of the plastic box body 1. At the same time, during the stacking process, the through holes 3 and the rollers 6 play a positioning role, making the stacked plastic box body 1 more neat, preventing it from tipping over, and for the stacked plastic box body 1, the rollers 6 will not enter the interior of the plastic box body 1, so that the items placed inside the plastic box body 1 will not be damaged by extrusion.

[0025] Embodiment 2

[0026] As Figures 1 - 4 shown, a plastic box convenient for moving proposed by the utility model, compared with Embodiment 1, this embodiment further includes fixed tubes 8 arranged at both sides of the outer surface of the plastic box body 1. The fixed tubes 8 and the plastic box body 1 are integrally injection-molded. And two sliding rods 10 are movably inserted into both fixed tubes 8. Friction blocks 9 are fixedly installed on the lower surfaces of the two sliding rods 10. Lifting chutes 12 are arranged at positions close to the upper surfaces of the two fixed tubes 8. Limit sliders 11 are fixedly installed at positions close to the upper surfaces of the outer surfaces of the two sliding rods 10. Pulling blocks 13 are fixedly installed on the upper surfaces of the two sliding rods 10. By lifting the pulling block 13 or rotating the sliding rod 10, limit grooves 14 are arranged on the upper surfaces of the two fixed tubes 8. After the sliding rod 10 rotates, the limit slider 11 can enter into the limit groove 14 to prevent the limit slider 11 from entering into the lifting chute 12 due to the rotation of the sliding rod 10, resulting in the friction block 9 contacting the ground. Limit rings 16 are fixedly installed at positions below the limit lifting chutes 12 on the inner walls of the two fixed tubes 8. Helical springs 15 are fixedly connected to the outer surfaces of the two sliding rods 10 at positions below the limit rings 16, and the helical springs 15 are helically wound around the outer surfaces of the sliding rods 10.

[0027] In this embodiment, when the plastic box body 1 needs to be fixed, the limit slider 11 is made to enter into the lifting chute 12, then the sliding rod 10 descends, and the friction block 9 contacts the ground, and the plastic box body 1 is fixed by the frictional force. And the elastic force of the helical spring 15 acts on the friction block 9 through the sliding rod 10, then the frictional force is increased to prevent the plastic box body 1 from moving through the rollers 6. When the plastic box body 1 needs to be moved, the sliding rod 10 is lifted and rotated to separate the limit slider 11 from the lifting chute 12, and the limit slider 11 enters into the limit groove 14, then the friction block 9 is separated from the ground, and the plastic box body 1 can be moved through the rollers 6.

[0028] The above specific embodiments are only several preferred embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A plastic box that is convenient to move, comprising a plastic box body (1), characterized in that: At the edge position of the upper surface of the plastic box body (1), there is a flanging (2). On both sides of the lower surface near the front surface and the rear surface of the plastic box body (1), there are cover shells (5). Inside each of the four cover shells (5), there is a roller (6) rotatably installed through a wheel axle (7). At the positions above the four rollers (6) on the upper surface of the flanging (2), there are through holes (3).

2. The plastic box convenient for moving according to claim 1, wherein: Between the upper surfaces of the four cover shells (5) and the outer surface of the plastic box body (1), there are reinforcing blocks (4).

3. A plastic box that is convenient to move according to claim 1, characterized in that: On both sides of the outer surface of the plastic box body (1), there are fixed tubes (8). Inside each of the two fixed tubes (8), there is a sliding rod (10) movably inserted. On the lower surfaces of the two sliding rods (10), there are friction blocks (9) fixedly installed. Near the upper surface positions on the outer sides of the two fixed tubes (8), there are lifting sliding grooves (12). Near the upper surface positions on the outer surfaces of the two sliding rods (10), there are limiting sliding blocks (11) fixedly installed.

4. The plastic box convenient for moving according to claim 3, wherein: On the upper surfaces of the two sliding rods (10), there are lifting blocks (13) fixedly installed.

5. The plastic box convenient for movement according to claim 3, characterized in that: On the upper surfaces of the two fixed tubes (8), there are limiting grooves (14).

6. The plastic box convenient for moving according to claim 3, wherein: On the inner walls of the two fixed tubes (8) at positions below the limiting lifting sliding grooves (12), there are limiting rings (16) fixedly installed. Below the limiting rings (16) on the outer surfaces of the two sliding rods (10), there are spiral springs (15) fixedly connected, and the spiral springs (15) are spirally wound around the outer surfaces of the sliding rods (10).