Flame-retardant and environment-friendly EVA foamed shoe sole

Abstract

The utility model discloses a kind of flame-retardant environment-friendly EVA foamed shoe sole, including composite shoe sole structure;The utility model is sequentially provided with reinforcing lower bottom, heat-insulating middle bottom and elastic upper bottom by being set in shoe sole cavity from bottom to top, wherein reinforcing lower bottom has the characteristics of high strength, high temperature resistance, by reinforcing lower bottom prevents composite shoe sole structure from being easily burnt from bottom, pierced, heat-insulating middle bottom can effectively insulate heat conduction, protect foot from being easily burned, elastic upper bottom uses the same EVA foamed material with shoe sole main body, with good resilience, ensure wearing comfort, and flame-retardant layer is set in the bottom of shoe sole main body, to greatly improve the flame-retardant performance of the bottom of shoe sole main body, so that composite shoe sole structure can be quickly extinguished after leaving fire source, protect foot from being burned, can provide effective protection for user.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole technology, specifically to a flame-retardant and environmentally friendly EVA foam shoe sole. Background Technology

[0002] EVA is a high-molecular-weight environmentally friendly material commonly used in shoe sole manufacturing. EVA's closed-cell foam structure can absorb more than 50% of the impact force, providing excellent resilience to the sole and possessing good shock absorption and cushioning performance, making it suitable for sports such as running and basketball that require frequent jumping.

[0003] Existing patent application number: CN202423285497.4 A shoe sole with shock absorption function includes an abrasion-resistant outer layer, and a composite inner layer is bonded to the top of the abrasion-resistant outer layer. The composite inner layer includes a comfort top layer, a microporous plate, a shock-absorbing middle layer, a stable support layer, a cushioning airbag layer, and an elastic memory layer arranged from top to bottom. The shock-absorbing middle layer includes a first shock-absorbing plate, a second shock-absorbing plate, a third shock-absorbing plate, and a fourth shock-absorbing plate arranged from top to bottom.

[0004] The aforementioned patent describes a sole structure. Commercially available EVA foam soles have insufficient flame retardant properties, and the soles are easily burned through when stepped on burning materials, making it difficult to provide effective protection for the wearer's feet. Therefore, we propose a flame-retardant and environmentally friendly EVA foam sole to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a flame-retardant and environmentally friendly EVA foam shoe sole to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a flame-retardant and environmentally friendly EVA foam shoe sole, comprising a composite shoe sole structure, the composite shoe sole structure comprising a shoe sole body, a shoe sole cavity, a reinforced undersole, a heat-insulating midsole, an elastic upper, and a flame-retardant layer. The shoe sole body has a shoe sole cavity at the top, and the reinforced undersole, heat-insulating midsole, and elastic upper are arranged sequentially from bottom to top inside the shoe sole cavity. The bottom surface of the shoe sole cavity is laid and fixed to the reinforced undersole with adhesive, the top surface of the reinforced undersole is bonded and fixed to the heat-insulating midsole with adhesive, the top surface of the heat-insulating midsole is bonded and fixed to the elastic upper with adhesive, and a flame-retardant layer is bonded and embedded at the bottom of the shoe sole body.

[0007] Preferably, the reinforced undersole is entirely made of aramid fiber.

[0008] Preferably, the heat-insulating midsole is made entirely of TPU material.

[0009] Preferably, the elastic upper is made of the same EVA foam material as the main body of the shoe sole.

[0010] Preferably, the flame-retardant layer is made of a rubber-based flame-retardant material.

[0011] Preferably, the elastic upper surface is provided with a plurality of airbags, which are distributed in the ball and heel areas of the elastic upper.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention features a composite sole structure, consisting of a reinforced undersole, a heat-insulating midsole, and an elastic upper, arranged sequentially from bottom to top inside the sole cavity. The reinforced undersole boasts high strength and high-temperature resistance, preventing the composite sole structure from being easily burned or punctured from the bottom. The heat-insulating midsole effectively isolates heat conduction, protecting the feet from burns. The elastic upper uses the same EVA foam material as the main sole, providing excellent resilience and ensuring wearing comfort. Furthermore, a flame-retardant layer is incorporated at the bottom of the main sole, significantly improving its flame-retardant properties and enabling the composite sole structure to extinguish quickly after being removed from a fire source, further protecting the feet from burns and providing effective protection for the user.

[0013] This invention improves the cushioning performance of the elastic upper by incorporating airbags on the surface of the upper. These airbags can disperse pressure through deformation, thereby enhancing the wearing experience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a disassembled structural diagram of the composite sole structure in this utility model; Figure 3 This is a schematic diagram of the main structure of the shoe sole in this utility model; Figure 4 This is a schematic diagram of the elastic upper bottom structure in this utility model.

[0015] In the diagram: Composite sole structure-1, sole body-11, sole cavity-12, reinforced undersole-13, heat-insulating midsole-14, elastic upper-15, airbag-151, flame-retardant layer-16. Detailed Implementation

[0016] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0017] Please see Figure 1-3This utility model provides a flame-retardant and environmentally friendly EVA foam shoe sole, including a composite shoe sole structure 1. The composite shoe sole structure 1 includes a shoe sole body 11, a shoe sole cavity 12, a reinforced undersole 13, a heat-insulating midsole 14, an elastic upper sole 15, and a flame-retardant layer 16. The shoe sole body 11 has a shoe sole cavity 12 at the top. The reinforced undersole 13, the heat-insulating midsole 14, and the elastic upper sole 15 are arranged sequentially from bottom to top inside the shoe sole cavity 12. The bottom surface of the shoe sole cavity 12 is laid and fixed to the reinforced undersole 13 with adhesive. The top surface of the reinforced undersole 13 is bonded and fixed to the heat-insulating midsole 14 with adhesive. The top surface of the heat-insulating midsole 14 is bonded and fixed to the elastic upper sole 15 with adhesive. The elastic upper sole 15 uses the same EVA foam material as the shoe sole body 11. The closed-cell structure of EVA can provide excellent elasticity and ensure wearing comfort. The flame-retardant layer 16 is bonded and embedded at the bottom of the shoe sole body 11.

[0018] To further explain, the reinforced undersole 13 is made entirely of aramid fiber. Aramid fiber has the characteristics of high strength and high temperature resistance. By reinforcing the undersole 13, the composite sole structure 1 is prevented from being easily burned or punctured from the bottom, thus providing effective protection.

[0019] The heat-insulating midsole 14 is made entirely of TPU material, which has excellent heat insulation properties, enabling the heat-insulating midsole 14 to effectively block heat conduction and protect the feet from burns.

[0020] Among them, the flame retardant layer 16 is made of rubber-based flame retardant material, which greatly improves the flame retardant performance of the bottom of the sole body 11, and the composite sole structure 1 can be quickly extinguished after leaving the fire source, protecting the feet from burns.

[0021] By setting up a composite sole structure 1, the sole cavity 12 is provided with a reinforced undersole 13, a heat-insulating midsole 14, and an elastic upper 15 arranged sequentially from bottom to top. The reinforced undersole 13 has high strength and high temperature resistance, which prevents the composite sole structure 1 from being easily burned or punctured from the bottom. The heat-insulating midsole 14 can effectively isolate heat conduction and protect the feet from burns. The elastic upper 15 uses the same EVA foam material as the main body of the sole 11, which has good resilience and ensures wearing comfort. Furthermore, a flame-retardant layer 16 is set at the bottom of the main body of the sole 11 to greatly improve the flame-retardant performance of the bottom of the main body of the sole 11, so that the composite sole structure 1 can be quickly extinguished after being removed from the fire source, protecting the feet from burns and providing effective protection for the user.

[0022] Please see Figure 4 This utility model provides a flame-retardant and environmentally friendly EVA foam sole. The surface of the elastic upper sole 15 is provided with a plurality of airbags 151. The airbags 151 are distributed in the forefoot and heel of the elastic upper sole 15. The airbags 151 can disperse pressure through deformation, further improve the cushioning performance of the elastic upper sole 15, and improve the wearing experience.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flame-retardant and environmentally friendly EVA foam shoe sole, characterized in that: The composite sole structure (1) includes a sole body (11), a sole cavity (12), a reinforced undersole (13), a heat-insulating midsole (14), an elastic upper (15), and a flame-retardant layer (16). The sole body (11) has a sole cavity (12) at the top. The sole cavity (12) is provided with a reinforced undersole (13), a heat-insulating midsole (14), and an elastic upper (15) from bottom to top. The bottom surface of the sole cavity (12) is fixed to the reinforced undersole (13) with adhesive. The top surface of the reinforced undersole (13) is fixed to the heat-insulating midsole (14) with adhesive. The top surface of the heat-insulating midsole (14) is fixed to the elastic upper (15) with adhesive. The bottom of the sole body (11) is fitted with a flame-retardant layer (16).

2. The flame-retardant and environmentally friendly EVA foam shoe sole according to claim 1, characterized in that: The reinforced underside (13) is entirely made of aramid fiber.

3. The flame-retardant and environmentally friendly EVA foam shoe sole according to claim 1, characterized in that: The heat-insulating midsole (14) is made entirely of TPU material.

4. The flame-retardant and environmentally friendly EVA foam shoe sole according to claim 1, characterized in that: The elastic upper (15) is made of the same EVA foam material as the main body of the sole (11).

5. The flame-retardant and environmentally friendly EVA foam shoe sole according to claim 1, characterized in that: The flame retardant layer (16) is made of rubber-based flame retardant material.

6. The flame-retardant and environmentally friendly EVA foam shoe sole according to claim 1, characterized in that: The surface of the elastic upper (15) is provided with a plurality of airbags (151), which are distributed on the ball of the foot and the heel of the elastic upper (15).

Images