Waterproof and breathable EVA (Ethylene Vinyl Acetate) insole structure

Abstract

The utility model relates to the technical field of EVA midsoles, in particular to a waterproof breathable EVA midsole structure which comprises a midsole body, a waterproof breathable mechanism is arranged in the midsole body, and through grooves are formed in the top and the two sides of the midsole body. The waterproof ventilation mechanism comprises a ventilation cushion fixedly connected to the interior of the insole body, a flow guide groove is formed in the center of the interior of the ventilation cushion, ventilation holes are formed in the top of the flow guide groove, and air inlet grooves are formed in the upper portions of the centers of the two sides of the outer wall of the flow guide groove; according to the waterproof breathable EVA insole structure, the waterproof breathable mechanism in the waterproof breathable EVA insole structure is used for exchanging air with the outside, and the problems that an existing insole structure is generally made of EVA materials, has good elasticity and flexibility, is not prone to cracking, and is not prone to deformation are solved. However, the air permeability of the EVA material is poorer, so that the air permeability of the manufactured sole cannot meet the use requirement.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical fields, concretely is a waterproof and ventilative EVA middle sole structure. BACKGROUND

[0002] The middle sole is the structure for playing the role of shock attenuation support in the sole, but the existing middle sole structure still has the deficiency, specifically: the existing middle sole structure generally adopts the EVA material to manufacture, and it has good elasticity and flexibility and is not easy to crack, but the air permeability of EVA material is poor, leading to the air exchange performance of the manufactured sole not satisfying the use requirement.

[0003] Therefore, a waterproof and ventilative EVA middle sole structure is needed to solve the problems in the above background technology. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a waterproof and ventilative EVA middle sole structure to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A waterproof and ventilative EVA middle sole structure, including the middle sole body, the inside of the middle sole body is provided with waterproof and ventilative mechanism, the top and both sides of the middle sole body are all set up with the through slot;

[0007] The waterproof and ventilative mechanism includes the air exchange pad fixedly connected in the inside of the middle sole body, the inside center of the air exchange pad is set up with the flow guide groove, the top of the flow guide groove is set up with the air exchange hole, the top of the both sides center of the flow guide groove outer wall is set up with the air inlet groove, the bottom of the flow guide groove and at the position close to the air inlet groove is set up with the air outlet groove, the top and bottom of the air inlet groove inner wall and at the position close to the flow guide groove are all fixedly connected with the air inlet closure piece, the both sides of the air outlet groove inner wall and at the position close to the flow guide groove are all fixedly connected with the air outlet closure piece, the inner wall of the through slot and at the both sides of the air exchange pad are all fixedly connected with the waterproof pad.

[0008] As the preferred scheme of the utility model, the middle sole body is made of EVA, and the through slot is provided with multiple groups.

[0009] As the preferred scheme of the utility model, the air exchange pad, the air outlet closure piece and the air inlet closure piece are all made of silica gel, and the air outlet grooves are all designed in L-shaped structure.

[0010] As the preferred scheme of the utility model, the air inlet grooves, the air outlet grooves and the air exchange holes are all provided with multiple groups, and the waterproof pad is made of waterproof and ventilative film.

[0011] As the preferred scheme of the utility model, the exhaust closing piece and the air inlet closing piece are both designed as semicircular structure, and the exhaust groove is below the air inlet groove.

[0012] As the preferred scheme of the utility model, the waterproof pad is obliquely installed in the through groove, and the shape of the waterproof pad is matched with the shape of the through groove.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、in the utility model, through design a kind of waterproof breathable EVA midsole structure, utilize the waterproof breathable mechanism in the device to exchange air with outside, after receiving extrusion, the air exchange pad in midsole body is compressed, the air in the air guide groove in air exchange pad is extruded, the air in the air guide groove will push away exhaust closing piece, and is discharged through exhaust groove, air inlet closing piece will block air inlet groove, air cannot be discharged from air inlet groove, after the extrusion of outside disappears, midsole body and air exchange pad will rebound to original shape, the space in the air guide groove recovers normal, the air pressure in the air guide groove reduces, outside air will flow into air inlet groove under the action of pressure difference and push away air inlet closing piece and flow into the air guide groove, the air in the air guide groove flows into the sole through air exchange hole and through groove, realize the air flow in the sole, and the waterproof pad made of waterproof breathable film in the through groove can prevent water vapor in the air from entering the midsole body, and the inclined waterproof pad can prevent water vapor from accumulating on its surface, solve the problem that the existing midsole structure is generally made of EVA material, which has good elasticity and flexibility and is not easy to crack, but the air permeability of EVA material is poor, so that the air exchange performance of the manufactured sole cannot meet the use requirement. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 It is the utility model Figure 2 Enlarged view of A.

[0018] In the drawing: 1, midsole body;2, waterproof breathable mechanism;3, through groove;201, air exchange pad;202, air guide groove;203, air exchange hole;204, air inlet groove;205, exhaust groove;206, air inlet closing piece;207, exhaust closing piece;208, waterproof pad. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0020] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings, and several embodiments of the present application are given, but the present application can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element, and the terms "vertical", "horizontal", "left", "right" and the like used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs, and the terms used herein in the specification are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application, and the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] Embodiments, please refer to Figures 1-3 The present application provides a technical solution:

[0024] A waterproof and breathable EVA midsole structure, comprising a midsole body 1, a waterproof and breathable mechanism 2 is arranged in the midsole body 1, and a through groove 3 is formed in the top and both sides of the midsole body 1;

[0025] The midsole body 1 is made of EVA, and the through groove 3 is provided with multiple groups;

[0026] In this embodiment, reference is made to Figure 2 and Figure 3The waterproof and breathable mechanism 2 comprises an air exchange pad 201 fixedly connected inside the midsole body 1, a flow guide groove 202 is formed at the center of the inside of the air exchange pad 201, an air exchange hole 203 is formed at the top of the flow guide groove 202, an air inlet groove 204 is formed above the center of the outer wall of the flow guide groove 202 on both sides, an air outlet groove 205 is formed at the bottom of the flow guide groove 202 and close to the air inlet groove 204, an air inlet closing piece 206 is fixedly connected to the top and bottom of the inner wall of the air inlet groove 204 and close to the flow guide groove 202, an air outlet closing piece 207 is fixedly connected to the inner wall of the air outlet groove 205 and close to the flow guide groove 202, and a waterproof pad 208 is fixedly connected to the inner wall of the through groove 3 and on both sides of the air exchange pad 201;

[0027] The air exchange pad 201, the air outlet closing piece 207 and the air inlet closing piece 206 are all made of silica gel, the air outlet groove 205 is of L-shaped structure, the air inlet groove 204, the air outlet groove 205 and the air exchange hole 203 are all provided with multiple groups, the waterproof pad 208 is made of waterproof and breathable film, the air outlet closing piece 207 and the air inlet closing piece 206 are both of semicircular structure, the air outlet groove 205 is below the air inlet groove 204, the waterproof pad 208 is obliquely installed in the through groove 3, the shape of the waterproof pad 208 is matched with the shape of the through groove 3, after the midsole body 1 is extruded by the outside, the midsole body 1 and the air exchange pad 201 inside are compressed, the air in the flow guide groove 202 of the air exchange pad 201 is extruded, the air in the flow guide groove 202 pushes away the air outlet closing piece 207 and is discharged through the air outlet groove 205, at the same time, the air inlet closing piece 206 blocks the air inlet groove 204, so that the air cannot be discharged from the air inlet groove 204, after the extrusion of the outside disappears, the midsole body 1 and the air exchange pad 201 rebound to the original shape, the space in the flow guide groove 202 returns to normal, the air pressure in the flow guide groove 202 decreases, the outside air flows into the air inlet groove 204 and pushes away the air inlet closing piece 206 to flow into the flow guide groove 202 under the action of the pressure difference, the air outlet closing piece 207 blocks the air outlet groove 205, so that the air cannot flow into the flow guide groove 202 through the air outlet groove 205, the air in the flow guide groove 202 flows into the sole through the air exchange hole 203 and the through groove 3, so as to realize the air flow in the sole, and the waterproof pad 208 made of waterproof and breathable film in the through groove 3 can prevent the water vapor in the air from entering the midsole body 1.

[0028] The utility model discloses a work flow: when using waterproof and breathable EVA midsole structure designed by the scheme, after the midsole body 1 is extruded by outside, the midsole body 1 and the air exchange pad 201 in it are compressed, the air in the air guide groove 202 in the air exchange pad 201 is extruded, the air in the air guide groove 202 pushes away the exhaust closing piece 207 and is discharged through the exhaust groove 205, simultaneously, the air inlet closing piece 206 will block the air inlet groove 204, and the air cannot be discharged from the air inlet groove 204, after the extrusion of outside disappears, the midsole body 1 and the air exchange pad 201 will rebound to the original shape, the space in the air guide groove 202 restores normal, the air pressure in the air guide groove 202 reduces, and the outside air will flow into the air inlet groove 204 under the action of pressure difference and push away the air inlet closing piece 206 and flow into the air guide groove 202, the exhaust closing piece 207 will block the exhaust groove 205, and the air cannot be recorded into the air guide groove 202 through the exhaust groove 205, the air in the air guide groove 202 flows into the sole through the air exchange hole 203 and the through groove 3, realizes the air flow in the sole, and the waterproof pad 208 made of waterproof and breathable film in the through groove 3 can prevent the water vapor in the air from entering the midsole body 1.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof and breathable EVA midsole structure comprising a midsole body (1), characterized in that: The inside of the midsole body (1) is provided with a waterproof and breathable mechanism (2), and the top and both sides of the midsole body (1) are provided with a through groove (3); The waterproof and breathable mechanism (2) comprises an air exchange pad (201) fixedly connected inside the midsole body (1), a flow guide groove (202) is formed at the inside center of the air exchange pad (201), an air exchange hole (203) is formed at the top of the flow guide groove (202), air inlet grooves (204) are formed above the centers of the two sides of the outer wall of the flow guide groove (202), air outlet grooves (205) are formed at the bottom of the flow guide groove (202) and close to the air inlet grooves (204), air inlet closing pieces (206) are fixedly connected to the top and bottom of the inner wall of the air inlet groove (204) and close to the flow guide groove (202), air outlet closing pieces (207) are fixedly connected to the two sides of the inner wall of the air outlet groove (205) and close to the flow guide groove (202), and waterproof pads (208) are fixedly connected to the inner wall of the through groove (3) and on both sides of the air exchange pad (201).

2. The waterproof and breathable EVA midsole structure according to claim 1, characterized in that: The midsole body (1) is made of EVA, and the through groove (3) is provided with multiple groups.

3. The waterproof and breathable EVA midsole structure according to claim 1, characterized in that: The air exchange pad (201), the air outlet closing piece (207) and the air inlet closing piece (206) are all made of silica gel, and the air outlet grooves (205) are all designed in L-shaped structure.

4. The waterproof and breathable EVA midsole structure according to claim 1, characterized in that: The air inlet grooves (204), the air outlet grooves (205) and the air exchange hole (203) are all provided with multiple groups, and the waterproof pad (208) is made of waterproof and breathable film.

5. The waterproof and breathable EVA midsole structure according to claim 1, characterized in that: The air outlet closing piece (207) and the air inlet closing piece (206) are both designed in semicircular structure, and the air outlet grooves (205) are located below the air inlet grooves (204).

6. The waterproof and breathable EVA midsole structure according to claim 1, characterized in that: The waterproof pad (208) is obliquely installed in the through groove (3), and the shape of the waterproof pad (208) is matched with the shape of the through groove (3).

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