Elastic damping EVA (Ethylene Vinyl Acetate) plate

Abstract

The utility model discloses an elastic shock-absorbing EVA plate, which comprises a first EVA layer, one side of the first EVA layer is provided with a reinforcing component used for increasing the bending resistance of the plate, the other side of the first EVA layer is provided with a protection component used for protecting the first EVA layer, the reinforcing component comprises a connecting layer arranged on one side of the first EVA layer, and the connecting layer is provided with a damping layer. A second rubber layer is arranged on one side of the connecting layer, and a second EVA layer is arranged on one side of the second rubber layer. Through the design of the first rubber layer, the second rubber layer and the reinforcing piece, when the EVA plate is extruded, the bending of the plate is reduced through the design of the first rubber layer and the second rubber layer and the pull-back of the first rubber layer, the second rubber layer and the reinforcing piece when the plate surface is extruded; meanwhile, stress on the EVA plate during bending is dispersed through the rubber layer, stress concentration generated on the surface or the edge of the plate is reduced, and therefore the fracture risk of the plate in the bending process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of EVA boards, and particularly relates to an elastic shock-absorbing EVA board. Background Art

[0002] An EVA board is a material board made of ethylene-vinyl acetate copolymer, which has the characteristics of elastic shock absorption. This means that it can absorb energy when subjected to external impact or vibration, and reduce the impact force transmitted to other structures or devices. During use, there may be a situation where the board is bent due to shaking or other reasons, and after being bent, there may be a situation where cracks appear on its surface due to the bending. Content of the Utility Model

[0003] The purpose of the utility model is to provide an elastic shock-absorbing EVA board to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: An elastic shock-absorbing EVA board, including a first EVA layer, a strengthening component for increasing the anti-bending property of the board is arranged on one side of the first EVA layer, a protection component for protecting the first EVA layer is arranged on the other side of the first EVA layer. The strengthening component includes a connection layer arranged on one side of the first EVA layer, a second rubber layer is arranged on one side of the connection layer, a second EVA layer is arranged on one side of the second rubber layer, a first rubber layer is arranged on one side of the second EVA layer, and a reinforcing member is arranged on one side of the first rubber layer.

[0005] Preferably, a first wear-resistant layer is arranged on one side of the first rubber layer.

[0006] Preferably, the horizontal longitudinal section of the first rubber layer is arranged in a wavy shape, and the horizontal longitudinal sections of the arranged first wear-resistant layer and the side of the second EVA layer close to the first rubber layer are both in a wavy shape.

[0007] Preferably, the reinforcing member includes reinforcing ribs symmetrically and fixedly connected to one side of the first rubber layer. A first through hole is symmetrically opened in the middle of the second EVA layer, a second through hole is symmetrically opened in the middle of the second rubber layer, and the reinforcing ribs are sequentially inserted and connected inside the first through hole and the second through hole.

[0008] Preferably, the first through hole and the second through hole communicate with each other.

[0009] Preferably, one end of the reinforcing rib is fixedly connected with a reinforcing block, and the reinforcing block is inserted and connected to one side of the second rubber layer.

[0010] Preferably, the protection component includes a waterproof layer arranged on the other side of the first EVA layer, and a second wear-resistant layer is arranged on one side of the waterproof layer.

[0011] Technical effects and advantages of the present utility model:

[0012] Through the design of the first rubber layer, the second rubber layer and the reinforcing member, when the EVA board is extruded, through the design of the first rubber layer and the second rubber layer, when the board surface is extruded, through the pulling back of the first rubber layer, the second rubber layer and the reinforcing member, the bending of the board is reduced. At the same time, the rubber layer is used to disperse the stress on the EVA board when it is bent, reducing the stress concentration generated on the surface or edge of the board, thereby reducing the risk of fracture of the board during the bending process. Description of the drawings

[0013] Figure 1 It is a schematic diagram of the layer connection structure of the present utility model.

[0014] Figure 2 For the present utility model Figure 1 The enlarged structural schematic diagram of part A in it.

[0015] In the figure: 1. The first EVA layer; 2. The first wear-resistant layer; 3. The first rubber layer; 4. The second rubber layer; 5. The second EVA layer; 6. The reinforcing rib; 7. The reinforcing block; 8. The waterproof layer; 9. The second wear-resistant layer; 10. The first through hole; 11. The second through hole; 12. The connection layer. Specific embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] The present utility model provides an elastic shock-absorbing EVA board as shown in Figure 1 and Figure 2 , which includes a first EVA layer 1. A reinforcing component for increasing the anti-bending property of the board is arranged on one side of the first EVA layer 1, and a protection component for protecting the first EVA layer 1 is arranged on the other side of the first EVA layer 1. The reinforcing component includes a connection layer 12 arranged on one side of the first EVA layer 1. A second rubber layer 4 is arranged on one side of the connection layer 12. A second EVA layer 5 is arranged on one side of the second rubber layer 4. A first rubber layer 3 is arranged on one side of the second EVA layer 5. A reinforcing member is arranged on one side of the first rubber layer 3. The horizontal longitudinal section of the first rubber layer 3 is arranged in a wavy shape. The horizontal longitudinal sections of the arranged first wear-resistant layer 2 and the side of the second EVA layer 5 close to the first rubber layer 3 are both in a wavy shape.

[0018] It should be noted that the first EVA layer 1 is ethylene-vinyl acetate copolymer, which is a commonly used thermoplastic with good flexibility, chemical corrosion resistance and low temperature resistance; the first rubber layer 3 and the second rubber layer 4 are both made of rubber, and the rubber material is used to absorb external impacts and vibrations, thereby reducing the influence caused by the force on the plate and protecting the plate from being easily damaged. The first rubber layer 3 is set in a wavy shape to provide more bending space when the plate is under pressure or bending, thereby reducing the risk of bending deformation and extending the service life of the plate; a first wear-resistant layer 2 formed by setting a polyvinyl chloride film on the EVA board is used for protection, improving the wear resistance and service life of the EVA board. By adding a PVC film on the surface of the EVA board as a protective layer, the EVA board can be effectively protected from damage caused by factors such as scratches, pollution and light.

[0019] Furthermore, through the design of the first rubber layer 3 and the second rubber layer 4, when the plate surface is squeezed, the first rubber layer 3, the second rubber layer 4 and the reinforcing member pull back to reduce the bending of the plate. At the same time, the rubber layer is used to disperse the stress on the EVA board when it is bent, reducing the stress concentration generated on the surface or edge of the plate, thereby reducing the fracture risk of the plate during the bending process.

[0020] Specifically, the first wear-resistant layer 2 is arranged on one side of the first rubber layer 3.

[0021] It should be noted that the first wear-resistant layer 2 is a polyvinyl chloride film, and its material is polyvinyl chloride. Because its molecular structure contains chlorine atoms, it has wear resistance and chemical resistance and is used to protect the first rubber layer 3 during use to avoid wear of the first rubber layer 3 during use.

[0022] Specifically, the reinforcing member includes a reinforcing rib 6 fixedly connected symmetrically about the center on one side of the first rubber layer 3. A first through hole 10 is symmetrically opened at the center of the middle part of the second EVA layer 5, and a second through hole 11 is symmetrically opened at the center of the middle part of the second rubber layer 4. The first through hole 10 and the second through hole 11 communicate with each other, and the reinforcing rib 6 is sequentially inserted and connected inside the first through hole 10 and the second through hole 11.

[0023] Specifically, one end of the reinforcing rib 6 is fixedly connected with a reinforcing block 7, and the reinforcing block 7 is inserted and connected on one side of the second rubber layer 4.

[0024] It should be noted that the reinforcing block 7 is inserted and fixedly connected on one side of the second rubber layer 4. When the first rubber layer 3 deforms, the first rubber layer 3 is pulled towards the side of the second rubber layer 4 through the reinforcing block 7, thereby accelerating the speed of the first rubber layer 3 to recover from deformation.

[0025] Specifically, the protective component includes a waterproof layer 8 provided on the other side of the first EVA layer 1, and a second wear-resistant layer 9 is provided on one side of the waterproof layer 8.

[0026] It should be noted that the provided waterproof layer 8 is a solid bio-wax. By applying the solid bio-wax on the first EVA layer 1, the first EVA layer 1 at the bottom of the solid bio-wax is protected to prevent rainwater from seeping in, thereby realizing the function of non-water seepage, keeping the first EVA layer 1 dry, and thus its elastic force will not decrease due to moisture. The provided second wear-resistant layer 9 is made of the same material as the first wear-resistant layer 2 and is used to protect the waterproof layer 8 during use to prevent the waterproof layer 8 from being damaged.

[0027] Furthermore, when manufacturing this EVA board, the first wear-resistant layer 2, the first rubber layer 3, the second rubber layer 4, the connecting layer 12, the first EVA layer 1, the waterproof layer 8, and the second wear-resistant layer 9 are stacked in sequence, and the adjacent two layers are fixed by bonding; when fixing the second EVA layer 5 on the top of the first rubber layer 3, align the first through-hole 10 with the reinforcing rib 6, and make the reinforcing rib 6 pass through the second EVA layer 5 through the first through-hole 10. When fixing the second rubber layer 4 on one side of the second EVA layer 5, first apply glue to the end of the reinforcing rib 6, then align the reinforcing rib 6 with the second through-hole 11 on the second rubber layer 4, and insert the end of the reinforcing rib 6 into the second through-hole 11, and fix the end of the reinforcing rib 6 on one side of the reinforcing block 7 with glue.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An elastic shock-absorbing EVA plate, comprising a first EVA layer (1), characterized in that: A reinforcing component for increasing the bending resistance of the plate is arranged on one side of the first EVA layer (1), and a protective component for protecting the first EVA layer (1) is arranged on the other side of the first EVA layer (1). The reinforcing component comprises a connecting layer (12) arranged on one side of the first EVA layer (1), a second rubber layer (4) is arranged on one side of the connecting layer (12), a second EVA layer (5) is arranged on one side of the second rubber layer (4), a first rubber layer (3) is arranged on one side of the second EVA layer (5), and a reinforcing member is arranged on one side of the first rubber layer (3).

2. The elastic shock-absorbing EVA board according to claim 1, characterized in that: A first wear-resistant layer (2) is provided on one side of the first rubber layer (3).

3. The elastic shock-absorbing EVA board according to claim 2, characterized in that: The horizontal longitudinal cross-section of the first rubber layer (3) is arranged to be wavy, and the horizontal longitudinal cross-sections of the first wear-resistant layer (2) and the second EVA layer (5) close to the first rubber layer (3) are both wavy.

4. The elastic shock-absorbing EVA board according to claim 1, characterized in that: The reinforcing member comprises a reinforcing rib (6) centrally and symmetrically fixedly connected to one side of the first rubber layer (3); a first through hole (10) is centrally and symmetrically opened in the middle of the second EVA layer (5); a second through hole (11) is centrally and symmetrically opened in the middle of the second rubber layer (4); and the reinforcing rib (6) is sequentially inserted and connected inside the first through hole (10) and the second through hole (11).

5. The elastic shock-absorbing EVA board according to claim 4, characterized in that: The first through hole (10) and the second through hole (11) are interconnected.

6. The elastic shock-absorbing EVA board according to claim 4, characterized in that: One end of the reinforcing rib (6) is fixedly connected to a reinforcing block (7), and the reinforcing block (7) is inserted and connected to one side of the second rubber layer (4).

7. The elastic shock-absorbing EVA board according to claim 1, characterized in that: The protection component comprises a waterproof layer (8) arranged on the other side of the first EVA layer (1), and a second wear-resistant layer (9) is arranged on one side of the waterproof layer (8).

Images