An EVA protective device for replacing EVA foam.

Abstract

This utility model discloses an EVA protective device for replacing EVA foam, including a protective plate. Multiple mounting ports are provided on one side of the protective plate, and a driving cavity is formed on the inner wall of the protective plate. Connecting ports are provided between the mounting ports and the driving cavity. A pull plate is slidably fitted onto the inner wall of the driving cavity. Multiple sets of U-shaped blocks are provided on one side of the pull plate, and fixing plates are rotatably fitted onto the inner walls of the U-shaped blocks. This utility model, by providing a driving component, mounting ports, and fixing plates, allows the pull plate to be driven by rotating a handwheel, enabling the fixing plate to open and close, thereby fixing and loosening the EVA foam. The replacement operation is simple, requiring no complex tools or professional skills, saving time and labor costs. Furthermore, by distributing multiple EVA foam bodies, individual replacement based on the damage condition of the EVA foam can be achieved, avoiding overall replacement, reducing protection costs, and improving material utilization.

Description

Technical Field

[0001] This utility model relates to the field of EVA protective device technology, specifically to an EVA protective device for replacing EVA foam. Background Technology

[0002] EVA protective devices typically refer to protective equipment made of vinyl acetate copolymer or using EVA material as a key protective component. They mainly utilize the excellent properties of EVA material itself, such as cushioning, shock absorption, sound insulation, heat insulation, and wear resistance, to protect other objects or people from adverse effects such as impact, vibration, noise interference, and heat transfer in different application scenarios.

[0003] Typically, protective devices are fixed to the outside of transported equipment. Utilizing the cushioning properties of EVA foam, they effectively absorb impact forces during collisions and bumps, preventing damage to the items and protecting them. In traditional methods, EVA foam is usually fixed as a whole. When protecting irregularly shaped items, the pressure, friction, and other forces experienced by different parts vary due to varying degrees of contact between the item and the EVA foam. If a part is damaged, the entire device must be replaced, discarding parts of the foam that still have good protective performance and can be reused. This results in unnecessary material waste and increased protection costs. Therefore, it is essential to design a practical EVA protective device that allows for the replacement of EVA foam while effectively reducing material waste. Utility Model Content

[0004] The purpose of this invention is to provide an EVA protective device for replacing EVA foam, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an EVA protective device for replacing EVA foam, including a protective plate, a plurality of mounting holes on one side of the protective plate, a driving cavity on the inner wall of the protective plate, a connecting port between the plurality of mounting holes and the driving cavity, a pulling plate slidably fitted on the inner wall of the driving cavity, a plurality of U-shaped blocks on one side of the pulling plate, a fixing plate rotatably fitted on the inner wall of the plurality of U-shaped blocks, and a plurality of teeth fixedly connected on one side of the fixing plate;

[0006] Multiple sets of force-bearing plates are fixedly connected to one side of the pull plate. A spring is fixedly connected to the adjacent side of each set of force-bearing plates. One end of the spring is fixed to one side of the fixed plate. EVA foam bodies are provided on the inner walls of the multiple mounting ports. A drive assembly is provided on one side of the pull plate.

[0007] According to the above technical solution, the drive assembly includes an adjusting screw threaded to the other side of the protective plate and rotating with the pull plate, and a hand-tightening disc fixedly connected to one end of the adjusting screw.

[0008] According to the above technical solution, two abutment blocks are fixedly connected to the inner walls of each of the multiple mounting ports, and the two abutment blocks abut against one side of the EVA foam body.

[0009] According to the above technical solution, mounting blocks are fixedly connected to both sides of the protective plate, and fixing holes are fixedly connected to the upper side of both mounting blocks.

[0010] According to the above technical solution, two fixing slots are opened on the other side of the protective plate, and a locking pin that is slidably engaged with the fixing slot is provided on the hand-tightening plate. A tensioning piece is provided between the locking pin and the hand-tightening plate.

[0011] According to the above technical solution, a guide groove is provided on the upper side of the drive cavity, and a guide block that is fixedly connected to the pull plate is slidably fitted on the inner wall of the guide groove.

[0012] According to the above technical solution, one side of the fixing plate is in contact with the inner wall of the connecting port, and one side of the EVA foam body is provided with a fixing end that cooperates with the teeth.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model, by setting a drive component, an installation port, and a fixing plate, can realize the opening and closing operation of the fixing plate by rotating the hand-wrench disc, thereby realizing the fixing and loosening of EVA foam. The replacement operation is simple, requiring no complicated tools or professional skills, saving time and labor costs. Furthermore, by distributing multiple EVA foam bodies, individual replacement can be carried out according to the damage of the EVA foam, avoiding the need for overall replacement, reducing protection costs, and improving material utilization. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall three-dimensional cross-sectional structure of this utility model;

[0017] Figure 3 This is the utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a rear-view three-dimensional schematic diagram of the protective plate of this utility model;

[0019] Figure 5 This is the utility model Figure 4 Enlarged structural diagram at point B;

[0020] In the diagram: 1. Protective plate; 2. Mounting port; 3. Drive cavity; 4. Connecting port; 5. Pull plate; 6. U-shaped block; 7. Fixing plate; 8. Tooth; 9. Force plate; 10. Spring; 11. EVA foam body; 12. Drive assembly; 121. Adjusting screw; 122. Hand-tightening disc; 13. Support block; 14. Mounting block; 15. Fixing hole; 16. Fixing groove; 17. Locking pin; 18. Tensioning plate; 19. Guide groove; 20. Guide block; 21. Fixing end. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 The present invention provides a technical solution: an EVA protective device for replacing EVA foam, comprising a protective plate 1, a plurality of mounting ports 2 on one side of the protective plate 1, a driving cavity 3 on the inner wall of the protective plate 1, a connecting port 4 between the plurality of mounting ports 2 and the driving cavity 3, a pulling plate 5 slidably fitted on the inner wall of the driving cavity 3, a plurality of U-shaped blocks 6 on one side of the pulling plate 5, a fixing plate 7 rotatably fitted on the inner wall of the plurality of U-shaped blocks 6, a side of the fixing plate 7 contacting the inner wall of the connecting port 4, and a plurality of teeth 8 fixedly connected on one side of the fixing plate 7, the teeth 8 being conical in shape;

[0023] Multiple sets of force plates 9 are fixedly connected to one side of the pull plate 5. Springs 10 are fixedly connected to the adjacent sides of the multiple sets of force plates 9. The springs 10 can be made of alloy spring steel, which has the characteristics of high strength and good toughness. One end of the spring 10 is fixed to one side of the fixed plate 7. EVA foam bodies 11 are provided on the inner walls of multiple mounting ports 2. A drive assembly 12 is provided on one side of the pull plate 5.

[0024] Please see Figure 4The drive assembly 12 includes an adjusting screw 121 threaded onto the other side of the protective plate 1 and rotating with the pull plate 5, and a hand-tightening disc 122 fixedly connected to one end of the adjusting screw 121. By holding the hand-tightening disc 122, the adjusting screw 121 can be rotated. When the adjusting screw 121 rotates and moves on the protective plate 1, it can push or pull the pull plate 5 to move accordingly, thereby achieving drive adjustment.

[0025] Please see Figure 2 and Figure 3 Each of the multiple mounting ports 2 has two fixedly connected abutment blocks 13 on its inner wall. The two abutment blocks 13 abut against one side of the EVA foam body 11. When the EVA foam body 11 is installed, one side of it contacts the abutment blocks 13, thereby limiting the EVA foam body 11 and making it accurately positioned in the appropriate position.

[0026] Please see Figure 1 Mounting blocks 14 are fixedly connected to both sides of the protective plate 1. Fixing holes 15 are fixedly connected to the upper side of the two mounting blocks 14. By passing the corresponding fasteners through the fixing holes 15, the mounting blocks 14 are fixed to ensure the balance and stability of the protective plate 1 after installation. This ensures that it will not easily tilt or shake when faced with external forces such as impacts or vibrations, thus ensuring the reliability of the protection.

[0027] Please see Figure 4 On the other side of the protective plate 1, there are two fixing slots 16. The hand-tightening plate 122 is slidably fitted with a locking pin 17 that is inserted into the fixing slot 16. A tensioning piece 18 is provided between the locking pin 17 and the hand-tightening plate 122. When it is necessary to fix and connect the relevant components, the locking pin 17 is inserted into the corresponding fixing slot 16 by the action of the tensioning piece 18, thereby limiting the hand-tightening plate 122 and reducing the occurrence of its rotation.

[0028] Please see Figure 3 A guide groove 19 is provided on the upper side of the drive cavity 3. A guide block 20 is slidably fitted on the inner wall of the guide groove 19 and fixedly connected to the pull plate 5. When the pull plate 5 moves, its guide block 20 will move in the corresponding guide groove 19 to play a guiding role and ensure that the pull plate 5 can move smoothly in a straight line.

[0029] Please see Figure 2 One side of the EVA foam body 11 is provided with a fixing end 21 that cooperates with the teeth 8. When the two fixing plates 7 are tightened, they can fix the fixing end 21 through the teeth 8, thereby further fixing the EVA foam body 11.

[0030] The implementation principle of this application is as follows: When in use, the protective plate 1 is fixed next to the equipment that needs to be protected, and the EVA foam body 11 comes into contact with the item that needs to be protected, thereby achieving protection for the corresponding equipment. The EVA foam body 11 is placed in multiple mounting ports 2, and two abutting blocks 13 on the inner wall of the mounting port 2 abut against the EVA foam body 11 from one side, playing a preliminary positioning and a certain degree of fixing role. Then, the adjusting screw 121 is driven to rotate by rotating the hand-tightening disc 122. Since the adjusting screw 121 is threaded with the other side of the protective plate 1 and rotates with the pulling plate 5, the pulling plate 5 will move in the driving cavity 3 during the rotation of the screw. The guide block 20 will slide along the guide groove 19, playing a guiding role and ensuring that the pulling plate 5 can move smoothly in a straight line.

[0031] When the pull plate 5 moves, the fixed plate 7 moves together through multiple sets of force plates 9 and springs 10. While the fixed plate 7 rotates inside the U-shaped block 6, it moves closer to the connecting port 4. Finally, one side of the fixed plate 7 contacts the inner wall of the connecting port 4, and the teeth 8 on the fixed plate 7 cooperate with the fixed end 21 on one side of the EVA foam body 11. From the other side, the EVA foam body 11 is firmly fixed in the installation port 2, completing the installation and fixing of the EVA foam. At this time, the protective device can play its protective role normally.

[0032] When it is necessary to replace the EVA foam body 11, first pull the locking pin 17 out of the fixing groove 16, then turn the handwheel 122 in the opposite direction to drive the adjusting screw 121 to rotate in the opposite direction, so that the pulling plate 5 moves in the opposite direction. The movement of the pulling plate 5 pulls the spring 10 through the force plate 9. The spring 10 drives the fixing plate 7 to disengage from the inner wall of the connecting port 4 and the fixing end 21 of the EVA foam body 11, thereby releasing the fixing restriction on the EVA foam body 11. At this time, the EVA foam body 11 that needs to be replaced can be easily taken out from the installation port 2. According to the damage, a new EVA foam body 11 can be inserted, which can easily replace the damaged part, reduce unnecessary material waste, effectively reduce protection costs, and improve the overall practicality and efficiency of use. Then repeat the above installation and fixing operation process to complete the replacement of EVA foam, so that the protective device can continue to be used.

[0033] 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.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An EVA protective device for replacing EVA foam, comprising a protective plate (1), characterized in that: The protective plate (1) has multiple mounting ports (2) on one side, and a driving cavity (3) is provided on the inner wall of the protective plate (1). A connecting port (4) is provided between the multiple mounting ports (2) and the driving cavity (3). A pulling plate (5) is slidably fitted on the inner wall of the driving cavity (3). Multiple sets of U-shaped blocks (6) are provided on one side of the pulling plate (5). A fixing plate (7) is rotatably fitted on the inner wall of the multiple sets of U-shaped blocks (6). Multiple teeth (8) are fixedly connected on one side of the fixing plate (7). A plurality of force plates (9) are fixedly connected to one side of the pull plate (5), and springs (10) are fixedly connected to the adjacent sides of the plurality of force plates (9). One end of the spring (10) is fixed to one side of the fixed plate (7). EVA foam bodies (11) are provided on the inner walls of the plurality of mounting ports (2), and a drive assembly (12) is provided on one side of the pull plate (5).

2. The EVA protective device for replacing EVA foam according to claim 1, characterized in that: The drive assembly (12) includes an adjusting screw (121) threaded to the other side of the protective plate (1) and rotatingly engaged with the pull plate (5), and a hand-wringing disc (122) fixedly connected to one end of the adjusting screw (121).

3. The EVA protective device for replacing EVA foam according to claim 1, characterized in that: Two abutment blocks (13) are fixedly connected to the inner walls of each of the multiple mounting ports (2), and the two abutment blocks (13) abut against one side of the EVA foam body (11).

4. The EVA protective device for replacing EVA foam according to claim 1, characterized in that: Mounting blocks (14) are fixedly connected to both sides of the protective plate (1), and fixing holes (15) are fixedly connected to the upper side of both mounting blocks (14).

5. The EVA protective device for replacing EVA foam according to claim 2, characterized in that: Two fixing slots (16) are provided on the other side of the protective plate (1). A locking pin (17) that is inserted into the fixing slot (16) is slidably fitted on the hand-tightening plate (122). A tensioning piece (18) is provided between the locking pin (17) and the hand-tightening plate (122).

6. The EVA protective device for replacing EVA foam according to claim 1, characterized in that: The upper side of the drive cavity (3) is provided with a guide groove (19), and the inner wall of the guide groove (19) is slidably fitted with a guide block (20) that is fixedly connected to the pull plate (5).

7. The EVA protective device for replacing EVA foam according to claim 1, characterized in that: One side of the fixing plate (7) is in contact with the inner wall of the connecting port (4), and one side of the EVA foam body (11) is provided with a fixing end (21) that cooperates with the teeth (8).

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