Tear-resistant EVA (Ethylene Vinyl Acetate) sheet

By designing the interlaced structure of transverse and longitudinal tensile strips in EVA sheets and combining the wavy structure of the buffer components, the problem of insufficient tear resistance performance of existing EVA sheets is solved, significantly improving tear resistance and practicality.

CN222628852UActive Publication Date: 2025-03-18HUIZHOU RUIFENG IND CO LTD
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Patent Information

Application Number
CN202421196786.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-03-18
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

The tear resistance of existing EVA sheets is poor, especially in sports equipment, especially when used as yoga mats, and it is necessary to improve tear resistance to improve practicality.

Method used

A tear-resistant EVA sheet is designed, and the sheet body is composed of transverse tensile strips and longitudinal tensile strips. The two are connected to each other in a crisscrossing structure, and are made of nylon material to improve tensile resistance. Meanwhile, a buffer assembly is provided in the connecting layer of the sheet body, including first and second elastic arc blocks, for increasing the buffering effect and breathability.

Benefits of technology

Through the design of the tear-resistant assembly, the tear resistance of the EVA sheet is significantly improved, making it better tensile resistance and tear resistance when used. The design of the cushioning assembly increases the cushioning effect and breathability of the sheet, thereby improving overall practicality and comfort.

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Abstract

The utility model relates to the technical field of EVA sheets, in particular to a tear-resistant EVA sheet which comprises a sheet body, a connecting layer is arranged on the outer side of the sheet body, a buffering assembly is arranged in the connecting layer, and a tear-resistant assembly is arranged at the end, away from the sheet body, of the connecting layer. A breathable layer is arranged at the end, away from the connecting layer, of the anti-tearing assembly, and a wear-resisting layer is arranged at the end, away from the anti-tearing assembly, of the breathable layer. The anti-tearing assembly is used for improving the anti-tearing effect of the sheet main body; the buffering assembly is used for improving the buffering effect of the sheet body, the anti-tearing assembly is composed of transverse tensile strips and longitudinal tensile strips, the transverse tensile strips are located at the end, away from the sheet body, of the connecting layer, and the longitudinal tensile strips are located on the outer sides of the transverse tensile strips and located on the outer side of the connecting layer. Compared with the existing EVA sheet material, the EVA sheet material has the advantage that the overall practicability of the EVA sheet material can be improved through the design.
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Description

Technical Field

[0001] The utility model relates to the technical field of EVA sheets, in particular to a tear-resistant EVA sheet. Background Art

[0002] EVA, also known as ethylene-vinyl acetate copolymer, is a widely used material. Due to its good plasticity, elasticity, and processability, as well as its low density, good mechanical properties, and easy coloring after foaming, EVA sheets have a wide range of applications. Its products are suitable for photovoltaic module encapsulation films, shoe materials, handbags, adhesive products, electronic accessories, lighting, artificial flower factories, computer mice, floor mats, toys and gifts, sports equipment, etc.

[0003] Since EVA sheets are soft materials, their tear resistance is average. In particular, EVA sheets used in sports equipment, such as EVA sheets used as yoga mats, have higher requirements for their tear resistance and need to be further improved. Therefore, it is particularly important to improve the existing EVA sheets and design a new tear-resistant EVA sheet to solve the above-mentioned technical defects and improve the practicality of the overall EVA sheet. Utility Model Content

[0004] The purpose of the utility model is to provide a tear-resistant EVA sheet, in which transverse tensile strips and longitudinal tensile strips are connected to each other in a limiting manner, and the transverse tensile strips and longitudinal tensile strips are in a criss-cross structure. Combined with the nylon material itself, the sheet has good tensile resistance, which can increase the tear resistance of the sheet body, thereby increasing the tear resistance of the sheet body. At the same time, when the sheet body is in use, the buffering effect of the sheet body can be increased by the buffering component, and the pressure on the sheet body can be absorbed, so that the sheet body has resilience and can increase comfort, thereby increasing the practicality of the sheet body and improving the overall practicality of the EVA sheet, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tear-resistant EVA sheet, comprising a sheet body, a connecting layer is arranged on the outside of the sheet body, a buffer component is arranged inside the connecting layer, an end of the connecting layer away from the sheet body is provided with an anti-tear component, an end of the anti-tear component away from the connecting layer is provided with a breathable layer, and an end of the breathable layer away from the anti-tear component is provided with a wear-resistant layer;

[0007] The anti-tear component is used to increase the anti-tear effect of the sheet body;

[0008] The buffer component is used to increase the buffer effect of the sheet body.

[0009] As a preferred solution of the utility model, the anti-tear component is composed of transverse tensile strips and longitudinal tensile strips, multiple groups of the transverse tensile strips are located at one end of the connecting layer away from the sheet body, and multiple groups of the longitudinal tensile strips are located on the outside of the transverse tensile strips and on the outside of the connecting layer.

[0010] As a preferred solution of the utility model, multiple groups of connecting grooves are opened on the outer side of the transverse tensile strip, the internal structure size of the connecting groove is designed to correspond to the external structure size of the longitudinal tensile strip, and the transverse tensile strip is connected to the longitudinal tensile strip through the connecting groove.

[0011] As a preferred solution of the utility model, the transverse tensile strips and the longitudinal tensile strips are nylon transverse tensile strips and nylon longitudinal tensile strips respectively.

[0012] As a preferred solution of the utility model, the buffer assembly consists of a first elastic arc block and a second elastic arc block, multiple groups of the first elastic arc blocks are located inside the connecting layer, and the second elastic arc blocks are located outside the first elastic arc blocks and inside the connecting layer.

[0013] As a preferred solution of the present invention, multiple groups of the first elastic arc blocks and multiple groups of the second elastic arc blocks are all designed with a wavy structure inside the connecting layer.

[0014] As a preferred solution of the utility model, through grooves are formed inside the connecting layer between the plurality of groups of the first elastic arc blocks and the plurality of groups of the second elastic arc blocks.

[0015] As a preferred solution of the utility model, a plurality of groups of air holes are provided inside the air permeable layer, and the plurality of groups of air holes are distributed at equal intervals inside the air permeable layer. Nano-scale activated carbon is provided inside the air permeable layer.

[0016] As a preferred solution of the utility model, a plurality of groups of elastic wear-resistant blocks are provided at one end of the wear-resistant layer away from the breathable layer, and the plurality of groups of elastic wear-resistant blocks are distributed at equal intervals on the outside of the wear-resistant layer, and the outsides of the elastic wear-resistant blocks and the wear-resistant layer are covered with PU coating and polytetrafluoroethylene coating.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In the utility model, through the design of the tear-resistant component, when the sheet body is in use, the transverse tensile strips and the longitudinal tensile strips are connected to each other in a limiting manner, and the transverse tensile strips and the longitudinal tensile strips are in a criss-cross structure, which, combined with its own nylon material, has better tensile resistance, thereby increasing the tear-resistant effect of the sheet body, thereby increasing the tear-resistant effect of the sheet body.

[0019] 2. In the utility model, through the design of the buffer component, when the sheet body is in use, through the wavy structure of multiple groups of first elastic arc blocks and multiple groups of second elastic arc blocks, when the sheet body is subjected to pressure, the multiple groups of first elastic arc blocks and multiple groups of second elastic arc blocks are deformed with each other, and the deformed multiple groups of first elastic arc blocks and multiple groups of second elastic arc blocks cooperate with their own elasticity to buffer and absorb the pressure on the sheet body, so that the sheet body has resilience and can increase comfort, thereby increasing the practicality of the sheet body, and at the same time, when the sheet body is in use, the through grooves formed by multiple groups of first elastic arc blocks and multiple groups of second elastic arc blocks can increase the air permeability of the sheet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of the sheet material of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the tear-resistant component of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the buffer component of the utility model.

[0024] In the figure: 1. sheet body; 2. connecting layer; 3. buffer component; 4. tear-resistant component; 5. breathable layer; 6. wear-resistant layer; 7. transverse tensile strip; 8. longitudinal tensile strip; 9. connecting groove; 10. first elastic arc block; 11. second elastic arc block; 12. through groove; 13. air hole; 14. elastic wear-resistant block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0028] A tear-resistant EVA sheet comprises a sheet body 1, a connecting layer 2 is arranged on the outer side of the sheet body 1, a buffer component 3 is arranged inside the connecting layer 2, and an anti-tear component 4 is arranged at one end of the connecting layer 2 away from the sheet body 1, a breathable layer 5 is arranged at one end of the anti-tear component 4 away from the connecting layer 2, and a wear-resistant layer 6 is arranged at one end of the breathable layer 5 away from the anti-tear component 4;

[0029] The tear-resistant component 4 is used to increase the tear-resistant effect of the sheet body 1;

[0030] Furthermore, the tear-resistant component 4 is composed of transverse tensile strips 7 and longitudinal tensile strips 8. Multiple groups of transverse tensile strips 7 are located at one end of the connecting layer 2 away from the sheet body 1, and multiple groups of longitudinal tensile strips 8 are located on the outside of the transverse tensile strips 7 and on the outside of the connecting layer 2. When the sheet body 1 is in use, the tear-resistant effect of the sheet body 1 can be increased by the tear-resistant component 4, thereby increasing the service life of the sheet body 1.

[0031] Among them, multiple groups of connecting grooves 9 are opened on the outer side of the transverse tensile strip 7, and the internal structure size of the connecting groove 9 is designed to correspond to the external structure size of the longitudinal tensile strip 8. The transverse tensile strip 7 is connected to the longitudinal tensile strip 8 through the connecting groove 9, and the longitudinal tensile strip 8 is connected to the connecting groove 9, so that the longitudinal tensile strip 8 can be connected to the transverse tensile strip 7. The transverse tensile strip 7 and the longitudinal tensile strip 8 are nylon transverse tensile strips and nylon longitudinal tensile strips respectively. When the sheet body 1 is in use, the transverse tensile strip 7 and the longitudinal tensile strip 8 are connected to each other in a limited manner. The transverse tensile strip 7 and the longitudinal tensile strip 8 are in a criss-cross structure, and combined with the nylon material itself, it has better tensile resistance, which can increase the tear resistance of the sheet body 1, thereby increasing the tear resistance of the sheet body 1.

[0032] The buffer component 3 is used to increase the buffer effect of the sheet body 1;

[0033] Furthermore, the buffer component 3 is composed of a first elastic arc block 10 and a second elastic arc block 11. Multiple groups of first elastic arc blocks 10 are located inside the connecting layer 2, and the second elastic arc block 11 is located on the outside of the first elastic arc block 10 and inside the connecting layer 2. When the sheet body 1 is in use, the buffer component 3 can increase the buffering effect of the sheet body 1 and absorb the pressure on the sheet body 1, so that the sheet body 1 has resilience and can increase comfort, thereby increasing the practicality of the sheet body 1.

[0034] Furthermore, the multiple groups of first elastic arc blocks 10 and the multiple groups of second elastic arc blocks 11 are all designed with a wavy structure inside the connecting layer 2. When the sheet body 1 is in use, through the wavy structure of the multiple groups of first elastic arc blocks 10 and the multiple groups of second elastic arc blocks 11, when the sheet body 1 is subjected to pressure, the multiple groups of first elastic arc blocks 10 and the multiple groups of second elastic arc blocks 11 are deformed against each other. The deformed multiple groups of first elastic arc blocks 10 and the multiple groups of second elastic arc blocks 11 cooperate with their own elasticity to buffer and absorb the pressure on the sheet body 1, so that the sheet body 1 has resilience and can increase comfort, thereby increasing the practicality of the sheet body 1.

[0035] Furthermore, through grooves 12 are formed inside the connecting layer 2 between the multiple groups of first elastic arc blocks 10 and the multiple groups of second elastic arc blocks 11. When the sheet body 1 is in use, the through grooves 12 formed by the multiple groups of first elastic arc blocks 10 and the multiple groups of second elastic arc blocks 11 can increase the air permeability of the sheet body 1.

[0036] Furthermore, a plurality of groups of air holes 13 are provided inside the air-permeable layer 5, and the plurality of groups of air holes 13 are evenly spaced inside the air-permeable layer 5. Nano-scale activated carbon is provided inside the air-permeable layer 5. When the sheet body 1 is in use, the air-permeable layer 5 and the plurality of groups of air holes 13 inside can increase the air permeability of the sheet body 1, and dissipate the heat inside the sheet body 1 to prevent the sheet body 1 from being damaged due to long-term use, thereby affecting its use. The filled activated carbon particles can play a deodorizing role, and can further increase the user's comfort experience.

[0037] Furthermore, a plurality of groups of elastic wear-resistant blocks 14 are provided at one end of the wear-resistant layer 6 away from the breathable layer 5, and the plurality of groups of elastic wear-resistant blocks 14 are distributed at equal intervals on the outside of the wear-resistant layer 6, and the outsides of the elastic wear-resistant blocks 14 and the wear-resistant layer 6 are covered with PU coating and polytetrafluoroethylene coating. When the sheet body 1 is in use, the wear-resistant layer 6 can cooperate with the plurality of groups of elastic wear-resistant blocks 14 to increase the wear resistance of the sheet body 1. Both the PU coating and the polytetrafluoroethylene coating have excellent wear resistance, and a double-layer wear-resistant protection is formed on the top of the sheet body 1, which effectively reduces the chance of surface wear of the sheet body 1 during use and improves the wear resistance of the sheet body 1.

[0038] In this embodiment, the implementation scenario is specifically as follows: when the sheet body 1 is in use, the transverse tensile strips 7 and the longitudinal tensile strips 8 are connected to each other in a limiting manner, and the transverse tensile strips 7 and the longitudinal tensile strips 8 are in a criss-cross structure, which, combined with its own nylon material, has good tensile resistance, which can increase the tear resistance of the sheet body 1, thereby increasing the tear resistance of the sheet body 1. When the sheet body 1 is in use, through the wavy structure of multiple groups of first elastic arc blocks 10 and multiple groups of second elastic arc blocks 11, when the sheet body 1 is subjected to pressure, the multiple groups of first elastic arc blocks 10 and the multiple groups of second elastic arc blocks 11 are deformed with each other, and the deformed multiple groups of first elastic arc blocks 10 and the multiple groups of second elastic arc blocks 11 cooperate with their own elasticity to buffer it and absorb the pressure on the sheet body 1, so that the sheet body 1 has resilience and can increase comfort, thereby increasing the practicality of the sheet body 1. When the sheet body 1 is in use, through the wavy structure of multiple groups of first elastic arc blocks 10 and multiple groups of second elastic arc blocks 11, when the sheet body 1 is subjected to pressure, the multiple groups of first elastic arc blocks 10 and the multiple groups of second elastic arc blocks 11 are deformed with each other, and the deformed multiple groups of first elastic arc blocks 10 and the multiple groups of second elastic arc blocks 11 are combined with their own elasticity to buffer it and absorb the pressure on the sheet body 1, so that the sheet body 1 has resilience and can increase comfort, thereby increasing the practicality of the sheet body 1. The through groove 12 formed by the arc-shaped block 10 and multiple groups of second elastic arc-shaped blocks 11 can increase the air permeability of the sheet body 1. When the sheet body 1 is in use, the air permeable layer 5 cooperates with the multiple groups of air holes 13 inside to increase the air permeability of the sheet body 1, and the heat inside the sheet body 1 is dissipated to prevent the sheet body 1 from being damaged due to long-term use, thereby affecting its use. The filled activated carbon particles can play a deodorizing role, which can further increase the user's comfort experience. When the sheet body 1 is in use, the wear-resistant layer 6 can cooperate with multiple groups of elastic wear-resistant blocks 14 to increase the wear resistance of the sheet body 1. Both the PU coating and the polytetrafluoroethylene coating have excellent wear resistance. A double-layer wear-resistant protection is formed on the top of the sheet body 1, which effectively reduces the probability of the surface of the sheet body 1 being worn during use and improves the wear resistance of the sheet body 1. Compared with the existing EVA sheet, the utility model can improve the overall practicality of the EVA sheet through design.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tear-resistant EVA sheet, comprising a sheet body (1), characterized in that: A connecting layer (2) is provided on the outer side of the sheet body (1), a buffer component (3) is provided inside the connecting layer (2), and an anti-tear component (4) is provided at one end of the connecting layer (2) away from the sheet body (1), a breathable layer (5) is provided at one end of the anti-tear component (4) away from the connecting layer (2), and a wear-resistant layer (6) is provided at one end of the breathable layer (5) away from the anti-tear component (4); The anti-tear component (4) is used to increase the anti-tear effect of the sheet body (1); The buffer component (3) is used to increase the buffer effect of the sheet body (1).

2. The tear-resistant EVA sheet according to claim 1, characterized in that: The tear-resistant component (4) is composed of transverse tensile strips (7) and longitudinal tensile strips (8), wherein multiple groups of the transverse tensile strips (7) are located at one end of the connecting layer (2) away from the sheet body (1), and multiple groups of the longitudinal tensile strips (8) are located on the outside of the transverse tensile strips (7) and on the outside of the connecting layer (2).

3. The tear-resistant EVA sheet according to claim 2, characterized in that: A plurality of connection grooves (9) are provided on the outer side of the transverse tensile strip (7), the internal structure size of the connection groove (9) is designed to correspond to the external structure size of the longitudinal tensile strip (8), and the transverse tensile strip (7) is connected to the longitudinal tensile strip (8) via the connection groove (9).

4. The tear-resistant EVA sheet according to claim 2, characterized in that: The transverse tensile strips (7) and the longitudinal tensile strips (8) are nylon transverse tensile strips and nylon longitudinal tensile strips respectively.

5. The tear-resistant EVA sheet according to claim 1, characterized in that: The buffer component (3) is composed of a first elastic arc block (10) and a second elastic arc block (11), wherein a plurality of groups of the first elastic arc blocks (10) are located inside the connection layer (2), and the second elastic arc blocks (11) are located outside the first elastic arc blocks (10) and inside the connection layer (2).

6. The tear-resistant EVA sheet according to claim 5, characterized in that: The plurality of groups of the first elastic arc-shaped blocks (10) and the plurality of groups of the second elastic arc-shaped blocks (11) are all designed in a wave-shaped structure inside the connection layer (2).

7. The tear-resistant EVA sheet according to claim 5, characterized in that: Through grooves (12) are formed inside the connection layer (2) between the plurality of groups of the first elastic arc-shaped blocks (10) and the plurality of groups of the second elastic arc-shaped blocks (11).

8. The tear-resistant EVA sheet according to claim 1, characterized in that: The air permeable layer (5) has a plurality of groups of air permeable holes (13) arranged inside, and the plurality of groups of air permeable holes (13) are distributed at equal intervals inside the air permeable layer (5). Nano-scale activated carbon is arranged inside the air permeable layer (5).

9. The tear-resistant EVA sheet according to claim 1, characterized in that: A plurality of groups of elastic wear-resistant blocks (14) are provided at one end of the wear-resistant layer (6) away from the air-permeable layer (5), and the plurality of groups of elastic wear-resistant blocks (14) are distributed at equal intervals on the outside of the wear-resistant layer (6), and the outsides of the elastic wear-resistant blocks (14) and the wear-resistant layer (6) are both covered with a PU coating and a polytetrafluoroethylene coating.