Recyclable EVA foamed shoe sole

Abstract

The utility model relates to the technical field of foamed shoe sole field, a kind of recyclable EVA foamed shoe sole, including EVA foamed shoe sole body and recess, recess is processed in the inner wall of EVA foamed shoe sole body, the inner wall surface of EVA foamed shoe sole body is processed honeycomb groove, the inner wall of EVA foamed shoe sole body is fixedly connected with first adhesive layer, the outer wall of first adhesive layer is connected with peripheral mechanism. Through the EVA plate, second adhesive layer, corrugated layer and antiskid shoe sole on its dismounting mechanism, the antiskid shoe sole can be replaced after wearing, prolong the life of body, comply with environmental protection concept, honeycomb groove reduces weight while guaranteeing strength, improves wearing lightness, the lug, outer cover and decorative strip on peripheral mechanism enhance side support and improve appearance, identification paste facilitates product information identification and recycling classification, realize overall structure to give consideration to durability and resource circulation.

Description

Technical Field

[0001] This utility model relates to the technical field of foamed shoe soles, specifically a recyclable EVA foamed shoe sole. Background Technology

[0002] EVA soles refer to soles made of EVA material. EVA soles have high resilience and tensile strength, high toughness, good shock absorption and cushioning performance, excellent heat insulation and cold protection, and excellent low-temperature performance. They can withstand severe cold, have closed-cell structure, good sound insulation, are non-absorbent, moisture-proof, and have good water resistance. They are also resistant to seawater, oils, acids, alkalis and other chemical corrosion, and are antibacterial, non-toxic, odorless and pollution-free.

[0003] For example, a high-durability rubber-modified EVA foam sole with authorization announcement number "CN216165574U" solves the problem of foot odor caused by prolonged wear of existing high-durability rubber-modified EVA foam soles. The aforementioned method involves pressing a rubber ball to allow air from its inner cavity to enter the inner cavity of the cushioning air bladder. Releasing the rubber ball allows outside air to enter, creating a cycle that inflates the cushioning air bladder. When deflation is needed, simply pressing the deflation valve opens it, allowing air to escape and adjusting the sole's cushioning capacity, preventing deformation, and increasing durability. However, existing high-durability rubber-modified EVA foam soles, while featuring cushioning grooves, breathable blocks, and interconnected vertical and horizontal ventilation grooves, as well as air inlets, outlets, and one-way valves, are mostly one-way ventilation or fixed cushioning designs, resulting in lower reusability. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing high-durability rubber-modified EVA foam shoe soles are mostly designed with one-way ventilation or fixed cushioning, resulting in low recyclability. Therefore, this invention proposes a recyclable EVA foam shoe sole.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reusable EVA foam shoe sole, comprising an EVA foam shoe sole body and a groove, wherein the inner wall of the EVA foam shoe sole body is processed with a groove, and the surface of the inner wall of the EVA foam shoe sole body is processed with a honeycomb groove, the inner wall of the EVA foam shoe sole body is fixedly connected to a first adhesive layer, and the outer wall of the first adhesive layer is connected to an external mechanism.

[0006] This design, featuring honeycomb grooves in the EVA foam sole, reduces the overall weight of the sole while ensuring structural strength, thus improving comfort and ease of wear. The grooves also provide a foundation for a stable connection between the sole and the upper fabric.

[0007] Preferably, the peripheral mechanism includes a protrusion, the outer wall of the protrusion is fixedly connected to the adhesive layer, the outer wall of the protrusion is fixedly connected to the outer sleeve, and the outer wall of the outer sleeve is fixedly connected to the decorative strip.

[0008] The protrusions in the outer mechanism of this design are tightly fixed to the EVA foam sole body through the first adhesive layer, which not only enhances the lateral support of the sole, but also improves the aesthetics of the sole with the decorative strip.

[0009] Preferably, the surface of the EVA foam sole body is fixedly connected to the label sticker, and the lower end of the EVA foam sole body is connected to a disassembly mechanism.

[0010] This label can display basic product information, such as the material composition of the sole, size specifications, environmental protection label for recycling, and production batch, making it easy for consumers to quickly understand the product characteristics. It also facilitates the identification and classification of the material type and recyclability of the sole during the recycling process.

[0011] Preferably, the disassembly mechanism includes an EVA board, the upper end of which is fixedly connected to the EVA foam shoe sole body, the lower end of which is fixedly connected to a second adhesive layer, and the lower end of the second adhesive layer is fixedly connected to a corrugated layer.

[0012] The connection structure between the EVA board, the second adhesive layer, the corrugated layer, and the anti-slip sole in this disassembly mechanism makes the connection between the anti-slip sole and the EVA board more secure. After wear, the sole can be replaced to achieve recycling, effectively extending the service life of the EVA foam sole body, which is in line with the concept of environmental protection and resource conservation.

[0013] Preferably, the lower end of the corrugated layer is fixedly connected to the anti-slip shoe sole.

[0014] The wave-shaped structure of this corrugated layer effectively disperses the impact force generated during walking, improves the cushioning performance of the sole, and enhances the fit between the sole and the non-slip sole, ensuring that the two are not easily separated during long-term use, further guaranteeing the stability and durability of the overall sole structure.

[0015] Preferably, the outer wall of the EVA board is in contact with the anti-slip shoe sole.

[0016] This design ensures that the outer wall of the EVA plate fits tightly against the inner wall of the anti-slip sole, forming a robust wrapping structure. This fit not only provides lateral support to the EVA plate, preventing it from shifting under stress, but also enhances the overall stability of the disassembly mechanism. This ensures that even after prolonged walking or exercise under complex stress conditions during daily wear, the anti-slip sole and EVA plate maintain a stable connection, preventing loosening or misalignment. This provides a reliable structural foundation for the convenient disassembly and replacement of the anti-slip sole in the future.

[0017] The present invention proposes a recyclable EVA foam shoe sole, which has the following advantages: the EVA plate, second adhesive layer, corrugated layer and anti-slip sole on its disassembly mechanism can be replaced after the anti-slip sole wears out, extending the life of the shoe body and conforming to the concept of environmental protection; the honeycomb groove reduces weight while ensuring strength and improving the ease of wearing; the protrusions, outer cover and decorative strips on the outer mechanism enhance side support and improve aesthetics; the label sticker facilitates product information identification and recycling classification, and the overall structure takes into account both durability and resource recycling. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the EVA foam sole body and EVA plate assembly;

[0020] Figure 3 for Figure 1 Schematic diagram of the EVA foam sole body assembly;

[0021] Figure 4 for Figure 2 Schematic diagram of the middle and outer perimeter organizational structure;

[0022] Figure 5 for Figure 1 Schematic diagram of the corrugated layer structure;

[0023] Figure 6 for Figure 1 Schematic diagram of the honeycomb trough structure.

[0024] In the diagram: 1. EVA foam sole body, 2. Groove, 3. Honeycomb groove, 4. First adhesive layer, 5. Peripheral mechanism, 501. Protrusion, 502. Outer layer, 503. Decorative strip, 6. Identification sticker, 7. Disassembly mechanism, 701. EVA board, 702. Second adhesive layer, 703. Corrugated layer, 8. Anti-slip sole. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] Please see Figure 1-6 In this embodiment, a reusable EVA foam shoe sole includes an EVA foam shoe sole body 1 and a groove 2. The inner wall of the EVA foam shoe sole body 1 is processed with the groove 2, and the inner wall surface of the EVA foam shoe sole body 1 is processed with honeycomb grooves 3. The inner wall of the EVA foam shoe sole body 1 is fixedly connected to a first adhesive layer 4, and the outer wall of the first adhesive layer 4 is connected to an outer peripheral mechanism 5.

[0027] The peripheral mechanism 5 includes a protrusion 501, the outer wall of the protrusion 501 is fixedly connected to the adhesive layer 4, the outer wall of the protrusion 501 is fixedly connected to the outer sleeve 502, and the outer wall of the outer sleeve 502 is fixedly connected to the decorative strip 503.

[0028] The surface of the EVA foam sole body 1 is fixedly connected to the label 6. A disassembly mechanism 7 is connected to the lower end of the EVA foam sole body 1. The disassembly mechanism 7 includes an EVA plate 701. The upper end of the EVA plate 701 is fixedly connected to the EVA foam sole body 1, the lower end of the EVA plate 701 is fixedly connected to the second adhesive layer 702, and the lower end of the second adhesive layer 702 is fixedly connected to the corrugated layer 703.

[0029] The EVA board 701, second adhesive layer 702, corrugated layer 703, and anti-slip sole 8 on the disassembly mechanism 7 allow the anti-slip sole 8 to be replaced after wear, extending the lifespan of the shoe and conforming to environmental protection principles. The honeycomb groove 3 reduces weight while ensuring strength, improving comfort. The protrusions 501, outer jacket 502, and decorative strip 503 on the outer mechanism 5 enhance side support and improve aesthetics. The label 6 facilitates product information identification and recycling classification, achieving a comprehensive structure that balances durability and resource recycling.

[0030] The lower end of the corrugated layer 703 is fixedly connected to the anti-slip sole 8, and the outer wall of the EVA board 701 is in contact with the anti-slip sole 8.

[0031] Working principle:

[0032] In the production process, firstly, EVA raw materials are mixed evenly with appropriate amounts of foaming agents, crosslinking agents and other additives. Then, through a high-temperature and high-pressure foaming process, the front end of the expanded EVA foam sole body 1 has the effect of forming honeycomb grooves 3, so as to reduce the weight of the sole and improve the cushioning performance.

[0033] The processing of groove 2 can ensure a stable connection with the upper fabric. The first adhesive layer 4 should be applied evenly and with a moderate thickness to ensure its bonding strength with the EVA foam sole body 1 and the outer mechanism 5. When the protrusion 501 and outer sleeve 502 in the outer mechanism 5 are connected to the first adhesive layer 4, the connection is ensured by increasing the contact area of ​​the adhesive surface to prevent separation during use. The installation of decorative strip 503 should ensure that its position is accurate and its fit is tight to enhance the aesthetics of the sole.

[0034] The label sticker 6 must be applied flat and firmly to ensure that the product information is clearly visible. The assembly of the disassembly mechanism 7 is equally important. The connection between the EVA board 701 and the second adhesive layer 702, the corrugated layer 703 and the anti-slip sole 8 must be firm and reliable. When installing the corrugated layer 703, its wavy structure must be kept intact to fully play its role in dispersing impact and enhancing adhesion.

[0035] In terms of performance, the honeycomb grooves 3 and the corrugated layer 703 give the sole excellent cushioning performance, effectively reducing pressure on the feet during walking or exercise and reducing fatigue. The anti-slip sole 8 provides good friction, ensuring walking safety. At the same time, the disassembly mechanism 7 makes it easy to replace the anti-slip sole 8 after wear. The first adhesive layer 4 on the outer jacket 502 is separated from the EVA foam sole body 1 by a special method, realizing the recycling of the sole and extending its service life, which is in line with the concept of environmental protection and resource conservation. The label 6 provides consumers with basic product information, facilitating product identification and recycling.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A recyclable EVA foam shoe sole, comprising an EVA foam shoe sole body (1) and a groove (2), wherein the inner wall of the EVA foam shoe sole body (1) is processed with the groove (2), characterized in that: The inner wall surface of the EVA foam shoe sole body (1) is processed with honeycomb grooves (3), the inner wall of the EVA foam shoe sole body (1) is fixedly connected to the first adhesive layer (4), and the outer wall of the first adhesive layer (4) is connected to an external mechanism (5).

2. The reusable EVA foam sole according to claim 1, characterized in that: The peripheral mechanism (5) includes a protrusion (501), the outer wall of the protrusion (501) is fixedly connected to the adhesive layer (4), the outer wall of the protrusion (501) is fixedly connected to the outer sleeve (502), and the outer wall of the outer sleeve (502) is fixedly connected to the decorative strip (503).

3. The reusable EVA foam sole according to claim 1, characterized in that: The surface of the EVA foam sole body (1) is fixedly connected to the label (6), and the lower end of the EVA foam sole body (1) is connected to a disassembly mechanism (7).

4. The reusable EVA foam sole according to claim 3, characterized in that: The disassembly mechanism (7) includes an EVA board (701), the upper end of which is fixedly connected to the EVA foam shoe sole body (1), the lower end of which is fixedly connected to the second adhesive layer (702), and the lower end of the second adhesive layer (702) is fixedly connected to the corrugated layer (703).

5. The reusable EVA foam sole according to claim 4, characterized in that: The lower end of the corrugated layer (703) is fixedly connected to the anti-slip sole (8).

6. The reusable EVA foam sole according to claim 4, characterized in that: The outer wall of the EVA board (701) is attached to the anti-slip shoe sole (8).

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