Improved structure of EVA (Ethylene Vinyl Acetate) sole

Abstract

The utility model provides an EVA (ethylene vinyl acetate) sole improved structure, which belongs to the technical field of EVA sole improved structures and structurally comprises an outer sole, a middle sole is hermetically wrapped in a cavity on the top surface of the outer sole, a half sole air cavity structure and a heel air cavity structure are formed on the left side and the right side between the outer sole and the middle sole after the outer sole and the middle sole are hermetically wrapped, the outer sole is made of rubber, the middle sole is made of EVA, and the middle sole is made of EVA. The sole is light, anti-skid and wear-resistant through the design that the insole is completely wrapped, sealed and attached by the outer sole, the half sole air cavity structure and the heel air cavity structure are formed between the outer sole and the insole, cavities of the two sets of air cavity structures are communicated with each other, the air cavity space of the half sole air cavity structure and the air cavity space of the heel air cavity structure are increased, and the air cavity space is increased. The shock-absorbing shoe sole can provide strong shock-absorbing performance for the shoe sole, does not need additional air bags, reduces cost, can also provide buffering and shock-absorbing performance for the shoe sole during side kicking, enables the shock-absorbing performance of the shoe sole to be more diversified, and is strong in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to an improved structure of EVA shoe sole belongs to the technical field of improved structure of EVA shoe sole. BACKGROUND

[0002] The shoe sole plays an important role in the structure of shoes, and the enterprise not only considers the production cost when producing the shoe sole, but also considers the comfort of people when wearing shoes.

[0003] The EVA shoe sole is a kind of single-layer shoe sole, and the EVA single-layer shoe sole is light and easy to wear, but the shock absorption and wear resistance and slip resistance of the EVA single-layer shoe sole are poor, and the improved structure of EVA shoe sole is provided for the above-mentioned deficiencies. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an improved structure of EVA shoe sole to solve the existing problems.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: an improved structure of EVA shoe sole, which comprises an outsole, and the outsole is sealed and wrapped with a midsole in the top surface cavity, and the left and right sides between the outsole and the midsole after sealed and wrapped form a forefoot air cavity structure and a heel air cavity structure, the outsole is made of rubber material, and the midsole is made of EVA material;

[0006] The forefoot air cavity structure is composed of a forefoot main air cavity, a first forefoot side cavity and a second forefoot side cavity connected by air passages;

[0007] The heel air cavity structure is composed of a heel main air cavity, a first heel side cavity and a second heel side cavity connected by air passages.

[0008] Further improvement is that a sleeve cavity for nesting and sealing the midsole is provided in the middle of the top surface of the outsole, first forefoot side recesses and second forefoot side recesses are provided on the front and rear end side walls of the forefoot area of the sleeve cavity, and first heel side recesses and second heel side recesses are provided on the front and rear end side walls of the heel area of the sleeve cavity.

[0009] Further improvement is that forefoot anti-skid protrusions and heel anti-skid protrusions are respectively provided on the left and right sides of the bottom surface of the outsole.

[0010] Further improvement is that a forefoot recess is provided on the left side of the bottom surface of the midsole, and first air passages and second air passages are longitudinally provided on the front and rear groove walls of the forefoot recess.

[0011] Further improvement is that a heel recess is provided on the right side of the bottom surface of the midsole, and third air passages and fourth air passages are longitudinally provided on the groove wall of the heel recess.

[0012] The beneficial effects of the utility model are:

[0013] This utility model provides an improved EVA sole structure. Through the full-wrap sealing design of the outsole to the midsole, the sole is lightweight, slip-resistant, and wear-resistant. The forefoot air chamber structure and heel air chamber structure formed between the outsole and midsole allow multiple interconnections between the chambers of both air chamber structures, increasing the air chamber space of the forefoot and heel air chamber structures. This provides stronger shock absorption performance to the sole, eliminating the need for external airbags, reducing costs, and also providing cushioning and shock absorption performance during lateral kicks. This makes the shock absorption performance of the sole more versatile and practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the top surface structure of an improved EVA shoe sole structure according to this utility model;

[0015] Figure 2 This is a schematic diagram of the outer bottom and top surface structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the bottom structure of the outer bottom of this utility model;

[0017] Figure 4 This is a schematic diagram of the bottom structure of the insole of this utility model;

[0018] Figure 5 This is a cross-sectional view of an improved EVA shoe sole structure according to this utility model. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figures 1-5 The present invention provides a schematic diagram of an improved EVA shoe sole structure: the structure includes an outsole 1, and a midsole 2 is sealed and wrapped inside the cavity on the top surface of the outsole 1. After the outsole 1 and the midsole 2 are sealed and wrapped, a forefoot air chamber structure 3 and a heel air chamber structure 4 are formed on the left and right sides. The outsole 1 is made of rubber, and the midsole 2 is made of EVA. The forefoot air chamber structure 3 is formed by the connection of a forefoot main air chamber 31, a first forefoot side chamber 32 and a second forefoot side chamber 33 through an air channel. The heel air chamber structure 4 is formed by the connection of a heel main air chamber 41, a first heel side chamber 42 and a second heel side chamber 43 through an air channel.

[0021] The outer sole 1 top surface middle part is provided with a sleeve cavity 11 for nesting and sealing the middle sole 2, and the front and rear end sidewalls of the forefoot area of the sleeve cavity 11 are provided with a first forefoot side recess 12 and a second forefoot side recess 13, and the front and rear end sidewalls of the heel area of the sleeve cavity 11 are provided with a first heel side recess 14 and a second heel side recess 15.

[0022] The left and right sides of the bottom surface of the outer sole 1 are provided with a forefoot anti-skid convex tooth 16 and a heel anti-skid convex tooth 17.

[0023] The left side of the bottom surface of the middle sole 2 is provided with a forefoot recess 21, and the front and rear groove walls of the forefoot recess 21 are longitudinally provided with a first air channel 211 and a second air channel 212.

[0024] The right side of the bottom surface of the middle sole 2 is provided with a heel recess 22, and the groove wall of the heel recess 22 is longitudinally provided with a third air channel 221 and a fourth air channel 222.

[0025] Working principle:

[0026] When the shoe sole is used, the outer sole 1 is made of rubber material, and the middle sole 2 is made of EVA material, so that the overall weight of the shoe sole is lighter than that of the pure rubber material, and the characteristics of keeping light and convenient are maintained. The bottom surface of the outer sole 1 is provided with a forefoot anti-skid convex tooth 16 and a heel anti-skid convex tooth 17, which can improve the anti-skid and wear-resistant performance, and prolong the service life of the shoe sole. The forefoot air cavity structure 3 and the heel air cavity structure 4 are directly wrapped and sealed by the outer sole 1 and the middle sole 2, without the need for additional embedded air bags, which is lower in cost and can maintain good shock absorption performance.

[0027] In addition, the communication design of the first forefoot side cavity 32, the second forefoot side cavity 33 and the forefoot main air cavity 31, and the communication design of the first heel side cavity 42, the second heel side cavity 43 and the heel main air cavity 41 make the air cavity space of the forefoot air cavity structure 3 and the heel air cavity structure 4 larger, and the shock absorption is better. The design of the first forefoot side cavity 32, the second forefoot side cavity 33, the first heel side cavity 42 and the second heel side cavity 43 can also make the shoe sole have strong shock absorption when kicking sideways.

[0028] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0029] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An improved EVA shoe sole structure, characterized by: Its structure includes the outer sole, and the outer sole top surface cavity is sealed and wrapped with the midsole, the left and right sides of the outer sole and the midsole are sealed and wrapped, and the front palm air cavity structure and the heel air cavity structure are formed, the outer sole is made of rubber material, and the midsole is made of EVA material; The front palm air cavity structure is composed of a front palm main air cavity, a first front palm side cavity and a second front palm side cavity which are connected by air passages; The heel air cavity structure is composed of a heel main air cavity, a first heel side cavity and a second heel side cavity which are connected by air passages.

2. The EVA shoe sole improvement structure according to claim 1, characterized in that: The outer sole top surface is provided with a sleeve cavity in the middle for nesting and sealing the midsole, first front palm side grooves and second front palm side grooves are formed on the front and rear end side walls of the front palm area of the sleeve cavity, and first heel side grooves and second heel side grooves are formed on the front and rear end side walls of the heel area of the sleeve cavity.

3. The EVA shoe sole improvement structure according to claim 2, characterized in that: The left and right sides of the bottom surface of the outer sole are respectively provided with front palm anti-skid convex teeth and heel anti-skid convex teeth.

4. The EVA shoe sole improvement structure according to claim 3, characterized in that: The left side of the bottom surface of the midsole is provided with a front palm groove, and the front and rear groove walls of the front palm groove are longitudinally provided with a first air passage and a second air passage.

5. The EVA shoe sole improvement structure according to claim 4, wherein: The right side of the bottom surface of the midsole is provided with a heel groove, and the groove wall of the heel groove is longitudinally provided with a third air passage and a fourth air passage.

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