EVA shoe sole with shock absorption and cushioning sandwich design
By introducing a double-layer foam pad structure, reinforced carbon plate, and deodorizing pad design into the EVA sole, the problems of EVA sole deformation and insufficient wear resistance are solved, achieving better shock absorption, anti-slip and deodorizing effects, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-09-26
- Publication Date
- 2026-07-14
AI Technical Summary
EVA soles are prone to deformation after prolonged use, resulting in poor shock absorption and cushioning, low energy return rate, and insufficient wear resistance and antibacterial and deodorizing effects of traditional EVA materials.
It adopts a double-layer foam pad structure, including a first foam pad and a second foam pad. The interior is injected with supercritical nitrogen to form closed-cell bubbles, combined with a reinforced carbon plate and a wear-resistant pad. The exterior is equipped with a deodorizing pad and an anti-slip strip. The deodorizing pad contains deodorizer and bactericide.
It enhances the shock absorption and support strength, wear resistance, and antibacterial and deodorizing effects of the sole, extends its service life, improves the problem of easy collapse of traditional EVA soles, and provides good anti-slip performance.
Smart Images
Figure CN224483176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of EVA shoe sole technology, specifically to an EVA shoe sole with a shock-absorbing and cushioning interlayer design. Background Technology
[0002] EVA soles refer to soles made of EVA material. EVA soles are characterized by good softness, rubber-like elasticity, good flexibility even below 0°C, good transparency and surface gloss, and good chemical stability.
[0003] EVA soles are soft and comfortable, but after prolonged use, their closed-cell foam structure will experience irreversible fatigue and damage, causing them to not fully rebound after being flattened. This results in a decrease in the shock absorption and cushioning effect of the sole. In addition, the energy return rate (i.e. the efficiency of releasing energy after being pressed) of traditional EVA materials is usually low, which can cause a loss of energy when running.
[0004] There is an urgent need for an EVA sole with a shock-absorbing and cushioning sandwich design to address the technical deficiencies mentioned above. Summary of the Invention
[0005] The purpose of this invention is to provide an EVA sole with a shock-absorbing and cushioning sandwich design to solve the problem of sole deformation mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock-absorbing and cushioning sandwich-type EVA shoe sole, comprising an EVA shoe sole body, wherein a first foam pad is disposed inside the EVA shoe sole body, a rubber pad is disposed at the bottom end of the first foam pad, a second foam pad is disposed at the bottom end of the rubber pad, both the first and second foam pads are disposed with air-injected foam, a deodorizing pad is fixedly adhered to the top end of the first foam pad, the deodorizing pad is disposed with a deodorizing agent and a bactericide respectively, a waterproof layer is disposed at the top end of the deodorizing pad, an arched groove is disposed at the bottom end of the EVA shoe sole body, a reinforcing carbon plate is fixedly connected to the bottom end of the EVA shoe sole body, a wear-resistant pad is fixedly connected to the bottom end of the reinforcing carbon plate, a first anti-slip strip, a second anti-slip strip and a third anti-slip strip are fixedly connected to the bottom end of the wear-resistant pad, and an anti-slip protrusion is fixedly connected to the outside of the third anti-slip strip.
[0007] As a further technical solution of this utility model, the first anti-slip strip is disposed on the left side of the bottom end of the wear-resistant pad, and the second anti-slip strip is disposed on the right side of the bottom end of the wear-resistant pad.
[0008] As a further technical solution of this utility model, the first anti-slip strip, the second anti-slip strip and the third anti-slip strip are all made of rubber.
[0009] As a further technical solution of this utility model, the first foam pad is made of thermoplastic polyurethane foam.
[0010] As a further technical solution of this utility model, the second foam pad is foamed with polyether block amide.
[0011] As a further technical solution of this utility model, the gas injection foaming uses supercritical nitrogen gas injected into the substrate to form bubbles.
[0012] As a further technical solution of this utility model, the deodorant adopts the microporous structure of activated carbon, and the bactericide adopts nano silver ion material.
[0013] As a further technical solution of this utility model, the deodorizer and bactericide are both soaked and immersed inside the deodorizing pad.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the EVA sole with shock-absorbing and cushioning sandwich design not only achieves the function of enhancing shock absorption and support strength and enhancing wear resistance, but also achieves the function of enhancing sterilization and deodorization.
[0015] By incorporating an EVA sole body, a first foam pad, an air-injected foam pad, a second foam pad, and a reinforcing carbon plate, the EVA sole body itself has strong shock absorption and protection. The addition of a first and second foam pad inside the EVA sole body forms a double-layer shock absorption structure. The reinforcing carbon plate at the bottom of the EVA sole body provides strong propulsion and torsional resistance, while also preventing excessive deformation of the midsole and extending its lifespan. The air-injected foam pads inside the first and second foam pads use supercritical nitrogen to form countless tiny, dense closed-cell bubbles. This structure can withstand more compressions and greatly improves the shortcomings of traditional EVA, which is prone to collapse. This structure achieves enhanced shock absorption and support strength.
[0016] By setting up an EVA sole body, a wear-resistant pad, a first anti-slip strip, a second anti-slip strip, and a third anti-slip strip, the wear-resistant pad at the bottom of the EVA sole body is made of a material with high wear resistance. The first anti-slip strip, the second anti-slip strip, and the third anti-slip strip at the bottom of the wear-resistant pad adopt an opposing structure to achieve the effect of anti-slip when walking forward and backward. This structure realizes the function of enhancing wear resistance and anti-slip effect.
[0017] The deodorizing pad is installed on top of the EVA sole body, and the deodorizing agent and bactericide inside the deodorizing pad have a strong bactericidal and deodorizing effect. The deodorizing agent adopts the activated carbon microporous structure, which has a huge specific surface area and rich microporous structure. It can strongly absorb sweat, odor molecules and microorganisms like a sponge to achieve efficient deodorization and enhance the overall bactericidal and deodorizing effect. Attached Figure Description
[0018] Figure 1 This is a frontal cross-sectional view of the present invention.
[0019] Figure 2 This is a top view of the structure of this utility model;
[0020] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0021] Figure 4 This is a front view cross-sectional structural diagram of the deodorizing pad of this utility model.
[0022] In the diagram: 1. EVA sole body; 2. First foam pad; 3. Inflated foam; 4. Deodorizing pad; 5. Waterproof layer; 6. Rubber pad; 7. Second foam pad; 8. Arch groove; 9. Reinforced carbon plate; 10. Wear-resistant pad; 11. First anti-slip strip; 12. Second anti-slip strip; 13. Third anti-slip strip; 14. Anti-slip bumps; 15. Deodorant; 16. Bactericide. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-4 The present invention provides an embodiment of an EVA shoe sole with a shock-absorbing and cushioning sandwich design, comprising an EVA shoe sole body 1, an internal first foam pad 2, a rubber pad 6 at the bottom end of the first foam pad 2, a second foam pad 7 at the bottom end of the rubber pad 6, an air-filled foam 3 inside both the first foam pad 2 and the second foam pad 7, a deodorizing pad 4 fixedly bonded to the top end of the first foam pad 2, a deodorizing agent 15 and a bactericide 16 respectively inside the deodorizing pad 4, a waterproof layer 5 at the top end of the deodorizing pad 4, an arched groove 8 at the bottom end of the EVA shoe sole body 1, a reinforcing carbon plate 9 fixedly connected to the bottom end of the reinforcing carbon plate 9, a wear-resistant pad 10 fixedly connected to the bottom end of the wear-resistant pad 10, a first anti-slip strip 11, a second anti-slip strip 12 and a third anti-slip strip 13 fixedly connected to the bottom end of the wear-resistant pad 10, and an anti-slip protrusion 14 fixedly connected to the outside of the third anti-slip strip 13.
[0025] The first foam pad 2 is made of thermoplastic polyurethane foam, the second foam pad 7 is made of polyether block amide foam, and the gas injection foam 3 uses supercritical nitrogen to inject into the substrate to form bubbles.
[0026] Specifically, such as Figure 1 and Figure 2 As shown, the EVA sole body 1 itself has a strong shock absorption and protection effect. The EVA sole body 1 has a first foam pad 2 and a second foam pad 7 added inside to form a double-layer shock absorption structure. The reinforced carbon plate 9 at the bottom of the EVA sole body 1 provides strong propulsion and anti-torsion ability, while also preventing excessive deformation of the midsole and extending its life. The air-injected foam 3 inside the first foam pad 2 and the second foam pad 7 uses supercritical nitrogen to form countless tiny, dense closed-cell bubbles. This structure can withstand more compressions and greatly improves the shortcomings of traditional EVA that are prone to collapse.
[0027] The first anti-slip strip 11 is located on the left side of the bottom end of the wear-resistant pad 10, and the second anti-slip strip 12 is located on the right side of the bottom end of the wear-resistant pad 10. The first anti-slip strip 11, the second anti-slip strip 12 and the third anti-slip strip 13 are all made of rubber.
[0028] Specifically, such as Figure 1 and Figure 3 As shown, the wear-resistant pad 10 at the bottom of the EVA sole body 1 is made of a material with high wear resistance. The first anti-slip strip 11, the second anti-slip strip 12 and the third anti-slip strip 13 at the bottom of the wear-resistant pad 10 adopt a relative structure to achieve the effect of anti-slip when walking forward and backward, and realize the function of enhancing wear resistance and anti-slip effect.
[0029] The deodorant 15 uses the microporous structure of activated carbon, and the bactericide 16 uses nano silver ion material. Both the deodorant 15 and the bactericide 16 are soaked into the interior of the deodorizing pad 4.
[0030] Specifically, such as Figure 1 and Figure 4 As shown, the deodorizing pad 4 is installed on the top of the EVA sole body 1. The deodorizing agent 15 and bactericide 16 inside the deodorizing pad 4 have a strong bactericidal and deodorizing effect. The deodorizing agent 15 adopts an activated carbon microporous structure, which has a huge specific surface area and rich microporous structure, and can strongly absorb sweat, odor molecules and microorganisms like a sponge to achieve efficient deodorization.
[0031] Working Principle: In use, the EVA sole body 1 possesses strong shock absorption and protection. A first foam pad 2 and a second foam pad 7 are added inside the EVA sole body 1 to form a double-layer shock absorption structure. The reinforcing carbon plate 9 at the bottom of the EVA sole body 1 provides strong propulsion and torsional resistance, while also preventing excessive deformation of the midsole and extending its lifespan. The air-filled foam 3 inside the first foam pad 2 and the second foam pad 7 uses supercritical nitrogen gas to form countless tiny, dense closed-cell bubbles. This structure can withstand more compressions, greatly improving the shortcomings of traditional EVA which is prone to collapse, and also deodorizing. The pad 4 is installed on top of the EVA sole body 1. The deodorizing agent 15 and bactericide 16 inside the deodorizing pad 4 have a strong bactericidal and deodorizing effect. The deodorizing agent 15 adopts an activated carbon microporous structure with a huge specific surface area and rich microporous structure. It can strongly absorb sweat, odor molecules and microorganisms like a sponge to achieve efficient deodorization. The wear-resistant pad 10 at the bottom of the EVA sole body 1 is made of a material with high wear resistance. The first anti-slip strip 11, the second anti-slip strip 12 and the third anti-slip strip 13 at the bottom of the wear-resistant pad 10 adopt a relative structure to achieve the effect of anti-slip when walking forward and backward, and realize the function of enhancing wear resistance and anti-slip effect.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A shock-absorbing and cushioning layered EVA sole, comprising an EVA sole body (1), characterized in that: The EVA sole body (1) is provided with a first foam pad (2) inside. A rubber pad (6) is provided at the bottom end of the first foam pad (2). A second foam pad (7) is provided at the bottom end of the rubber pad (6). Both the first foam pad (2) and the second foam pad (7) are provided with air-injected foam (3). A deodorizing pad (4) is fixedly attached to the top of the first foam pad (2). A deodorizing agent (15) and a bactericide (16) are respectively provided inside the deodorizing pad (4). 4) The top is provided with a waterproof layer (5), the bottom of the EVA sole body (1) is provided with an arched groove (8), the bottom of the EVA sole body (1) is fixedly connected with a reinforcing carbon plate (9), the bottom of the reinforcing carbon plate (9) is fixedly connected with a wear-resistant pad (10), the bottom of the wear-resistant pad (10) is fixedly connected with a first anti-slip strip (11), a second anti-slip strip (12) and a third anti-slip strip (13) respectively, and the outside of the third anti-slip strip (13) is fixedly connected with an anti-slip protrusion (14).
2. The EVA sole with shock-absorbing and cushioning sandwich design according to claim 1, characterized in that: The first anti-slip strip (11) is located on the left side of the bottom end of the wear-resistant pad (10), and the second anti-slip strip (12) is located on the right side of the bottom end of the wear-resistant pad (10).
3. The EVA sole with shock-absorbing and cushioning sandwich design according to claim 1, characterized in that: The first anti-slip strip (11), the second anti-slip strip (12) and the third anti-slip strip (13) are all made of rubber.
4. The EVA sole with shock-absorbing and cushioning sandwich design according to claim 1, characterized in that: The first foam pad (2) is made of thermoplastic polyurethane foam.
5. The EVA sole with shock-absorbing and cushioning sandwich design according to claim 1, characterized in that: The second foam pad (7) is foamed with polyether block amide.
6. The EVA sole with shock-absorbing and cushioning sandwich design according to claim 1, characterized in that: The gas injection foaming (3) uses supercritical nitrogen gas to inject into the substrate to form bubbles.
7. The EVA sole with shock-absorbing and cushioning sandwich design according to claim 1, characterized in that: The deodorant (15) adopts the microporous structure of activated carbon, and the bactericide (16) adopts nano silver ion material.
8. The EVA sole with shock-absorbing and cushioning sandwich design according to claim 1, characterized in that: The deodorant (15) and bactericide (16) are both soaked into the interior of the deodorizing pad (4).