Ventilation device applied to shoe sole, preparation method of ventilation device, shoe sole and shoe

Abstract

The invention relates to a breathable device applied to a shoe sole and a preparation method thereof, the shoe sole and a shoe, the breathable device comprises a gasket and waterproof breathable cloth covering the surface of the gasket, a plurality of protrusions are arranged on the surface of the gasket, a plurality of breathable holes are formed in the protrusions, and a plurality of round holes are formed in the periphery of the waterproof breathable cloth. A gasket is arranged on the peripheral edge of the waterproof breathable cloth in an overlapped mode and integrally formed with the gasket through the penetrating round holes. A mold A is adopted for manufacturing a semi-finished inner ring part, then the inner ring part is put into a lower mold of a mold B, TPU materials are injected into the mold B, the TPU materials flow into a groove of the inner ring part and the peripheral edge of a mold cavity of the lower mold of the mold B, and meanwhile the TPU materials penetrate through round holes of waterproof breathable cloth to flow into an annular groove of an upper mold of the mold B; the inner ring part, the waterproof breathable cloth and the secondarily injected TPU material cloth are bonded and integrally formed, the TPU material vertically clamps the peripheral edge of the waterproof breathable cloth, the waterproof breathable cloth and the inner ring part are firmly connected, and the peripheral edge is not prone to delaminating.

Description

Technical Field

[0001] The invention relates to the technical field of breathable shoes, in particular to a breathable device applied to a sole and a preparation method thereof, a sole and a shoe. Background Art

[0002] Shoes are composed of uppers and soles, which are used to protect the feet from being stabbed by sharp objects when walking on the road. Traditional shoes use the uppers to improve the ventilation effect, and the soles are made of heat-insulating materials. The soles are not breathable, which makes it difficult for sweat to be discharged from the soles of the feet, breed fungi and mold, and cause athlete's foot, which is harmful to the wearer's foot health.

[0003] In order to enhance the air permeability, shoes on the market have vents on the side of the sole, and air is sucked or discharged through the sole to enhance the air circulation efficiency between the shoes and the outside world. For example, referring to the Chinese utility model patent with the authorization announcement number CN219939844U, a kind of sole with good air permeability and shoes including the sole are disclosed, including a sole body, a shoe groove with an upper opening is provided on the sole body, the shoe groove bottom wall is provided with a supporting edge and a supporting beam, the supporting edge outer wall is connected to the shoe groove inner wall, and the body is also provided with a plurality of air holes that penetrate the supporting edge, and the insole adopts a breathable insole, which can ensure its good air permeability effect while achieving a certain waterproof effect. However, this kind of shoes has poor waterproof and dustproof performance. After walking on a road with more dust on the bottom for a period of time, the small air holes are easily blocked by accumulated dust, the air permeability of the sole is greatly reduced, and the water on the road surface easily enters the sole from the air holes, the waterproof effect is poor, and the wearing experience is not good. Summary of the invention

[0004] The present invention provides a ventilation device applied to a sole and a preparation method thereof, a sole and a shoe, so as to solve the problems that the ventilation holes of the above-mentioned shoes are easily blocked by dust, resulting in poor air permeability, water easily enters the shoes through the ventilation holes to form water accumulation, and the waterproof effect is poor.

[0005] The present invention adopts the following technical solution:

[0006] A ventilation device applied to the sole of a shoe comprises a gasket and a waterproof breathable cloth covering the surface of the gasket, wherein the surface of the gasket is provided with a plurality of convex portions, the convex portions are provided with a plurality of ventilation holes, the peripheral edge of the waterproof breathable cloth is provided with a plurality of circular holes, a gasket is stacked on the peripheral edge of the waterproof breathable cloth, and the gasket is integrally formed with the gasket by penetrating the circular holes.

[0007] Furthermore, the plurality of protrusions form interconnected grooves, which are used for secondary injection molding and bonding of the waterproof and breathable fabric.

[0008] Furthermore, a plurality of protrusions are provided at the bottom of the groove, and the protrusions are used to abut against the waterproof and breathable cloth.

[0009] Furthermore, the gasket and washer are integrally formed by injection molding of TPU material.

[0010] Furthermore, the thickness of the gasket is 1-3 mm.

[0011] A method for preparing a breathable device applied to a shoe sole comprises the following steps:

[0012] 1) placing the TPU raw material in the lower mold cavity of mold A, closing the upper mold of mold A, heating and molding, cooling and opening the mold, and obtaining a semi-finished inner ring component of the breathable device, wherein the convex parts are grooved, and all the grooves are interconnected to form a grid;

[0013] 2) Take a piece of waterproof breathable cloth, punch holes in the waterproof breathable cloth, and arrange the holes of the waterproof cloth to fit the periphery of the inner ring component to form a circle;

[0014] 3) The inner ring component obtained in the previous step is placed in the lower mold cavity of mold B, leaving a gap between the inner ring component and the peripheral wall of the mold cavity, a waterproof breathable cloth is hung on the upper mold of mold B, the upper mold of mold B is closed, and TPU material is injected into the mold cavity of mold B. The inner ring component is bonded to the waterproof breathable cloth through the newly injected TPU material to form an integral body;

[0015] 4) Cooling, opening the mold, and cutting off the excess waterproof breathable fabric along the edge of the breathable device to obtain the breathable device.

[0016] Furthermore, the bottom surface of the upper mold of the mold B is provided with an annular groove aligned with the peripheral edge of the lower mold, and the newly injected TPU material can pass through the circular holes of the waterproof breathable cloth and flow into the annular groove.

[0017] Furthermore, the mold cavities of the lower mold of the mold A and the lower mold of the mold B are provided with corresponding positioning posts, and the inner ring component is provided with positioning holes that cooperate with the positioning posts.

[0018] A shoe sole comprises a midsole, wherein the upper surface of the midsole is provided with a groove, the groove is provided with the above-mentioned ventilation device applied to the shoe sole, and the bottom of the groove is penetrated with through holes corresponding to the above-mentioned ventilation holes one by one.

[0019] Furthermore, the bottom of the midsole is bonded with an outsole.

[0020] A waterproof and breathable shoe comprises a shoe upper and the above-mentioned sole equipped with a breathable device, wherein the shoe upper is connected to the upper end of the sole.

[0021] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following advantages:

[0022] 1. This application adopts mold A to manufacture a semi-finished inner ring component, and then places the inner ring component into the lower mold of mold B, and injects TPU material into mold B. The TPU material flows into the groove of the inner ring component and the peripheral edge of the lower mold cavity of mold B. At the same time, the TPU material penetrates the circular hole of the waterproof and breathable cloth and flows into the annular groove of the upper mold of mold B, so that the inner ring component and the waterproof and breathable cloth are bonded with the secondary injected TPU material cloth to form an integral body. The TPU material clamps the peripheral edge of the waterproof and breathable cloth from top to bottom, and the waterproof and breathable cloth is firmly connected to the inner ring component, and the peripheral edge is not easy to delaminate.

[0023] 2. The groove of the inner ring component of the present application is reserved with a convex block, and the convex block is connected to the waterproof breathable cloth, so that the waterproof breathable cloth remains flat and is not easy to sink into the groove. The groove remains unobstructed, which facilitates the uniform injection of TPU material into the groove.

[0024] 3. The inner ring component of the present application is provided with multiple protrusions, and the protrusions are provided with anti-puncture inclined plates. Air holes are formed between the inclined plates. The air holes have a large aperture and are not easily clogged by dust, and have good ventilation effect. The waterproof and breathable cloth covers the surface of the protrusions, and the waterproof and breathable cloth is not easy to clog the air holes. The inner ring component has excellent waterproof and breathable effects.

[0025] 4. The ventilation device of the present application is installed on the sole, and the sole is provided with a groove adapted to the ventilation device. The bottom of the groove is provided with multiple ventilation holes, and the aperture of the ventilation holes is large. The air permeability of the sole is optimized, and the waterproof and breathable effect is good.

[0026] 5. The convex part of the present application is provided with parallel arranged inclined plates, and strip-shaped air holes are formed between the inclined plates. The inclined plates have anti-puncture function to protect the soles of the feet from being stabbed by sharp objects on the bottom, making the shoes safer to wear and walking, and the structural design is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the mold A and the lower mold of this application.

[0028] Figure 2 This is a schematic diagram of the structure of mold B of this application.

[0029] Figure 3 This is a schematic diagram of the structure of the lower mold of mold B of this application.

[0030] Figure 4 This is a schematic diagram of the structure of the waterproof and breathable fabric of this application.

[0031] Figure 5 This is a schematic structural diagram of the inner ring component of the present application.

[0032] Figure 6 This is a schematic diagram of the structure of the gasket of this application.

[0033] Figure 7This is a schematic diagram of the structure of the gasket and waterproof breathable fabric of this application.

[0034] Figure 8 This is a schematic diagram of the structure of the midsole of the present application without a breathable device installed.

[0035] Fig. 9 This is a schematic structural diagram of a midsole equipped with a breathable device according to the present application.

[0036] Fig.10 This is a schematic cross-sectional structural diagram of a midsole equipped with a breathable device according to the present application.

[0037] Fig.11 This is a schematic diagram of the structure of the sole of the present application when viewed from above. DETAILED DESCRIPTION

[0038] Reference Figures 1 to 7 A breathable device applied to a sole includes a gasket 1 and a waterproof breathable cloth 3 covering the surface of the gasket 1. The surface of the gasket 1 is provided with a plurality of convex portions 12, and a plurality of breathable holes 120 are provided in the convex portions 12. A plurality of circular holes 30 are provided on the peripheral edge of the waterproof breathable cloth 3. A gasket 111 is stacked on the peripheral edge of the waterproof breathable cloth 3. The gasket 111 is integrally formed with the gasket 1 by penetrating the circular holes 30.

[0039] Reference Figure 5 , Figure 6 The plurality of protrusions 12 form interconnected grooves 122, which are used for secondary injection molding and bonding the waterproof and breathable fabric 3.

[0040] Reference Figure 5 The bottom of the groove 122 is provided with a plurality of protrusions 13, and the protrusions 13 are used to abut against the waterproof and breathable cloth 3.

[0041] The gasket 1 and the washer 111 are integrally formed by injection molding of TPU material, and the washer 111 and the gasket 1 clamp the edge of the waterproof and breathable cloth 3 from top to bottom.

[0042] The thickness of the gasket 1 is 1-3 mm, and preferably the thickness of the gasket 1 is 2 mm.

[0043] A method for preparing a breathable device applied to a shoe sole comprises the following steps:

[0044] 1) placing TPU raw material in the cavity of the lower mold A-2 of mold A, closing the upper mold A-2 of mold A, heating and molding, cooling and opening the mold, and obtaining a semi-finished inner ring component 11 of the breathable device, wherein the convex parts 12 and the convex parts 12 form a groove 122 structure, and all the grooves 122 are interconnected to form a grid shape;

[0045] 2) Take a piece of waterproof breathable cloth 3, punch holes in the waterproof breathable cloth 3, and arrange the circular holes 30 of the waterproof cloth to fit the periphery of the inner ring component 11 to form a circle;

[0046] 3) The inner ring component 11 prepared in the previous step is placed in the cavity of the lower mold B-2 of the mold B, with a gap between the inner ring component 11 and the peripheral side wall of the cavity. The waterproof breathable cloth 3 is hung on the upper mold B-1 of the mold B, and the upper mold B-1 of the mold B is closed. The upper mold B-1 is provided with a feed hole b4 connected to the injection molding equipment, and the waterproof breathable cloth 3 is provided with a hole 31 aligned with the feed hole b4. TPU material is injected into the cavity b2 of the mold B. The TPU material flows into the cavity b2 of the mold B through the feed hole b4 along the guide hole b1, and the inner ring component 11 is bonded with the waterproof breathable cloth 3 and the inner ring component 11 through the newly injected TPU material to form an integrated body;

[0047] 4) Cooling, opening the mold, and cutting the excess waterproof breathable fabric 3 along the edge of the breathable device to obtain the breathable device.

[0048] The bottom surface of the upper mold of the mold B is provided with an annular groove b3 aligned with the peripheral edge of the lower mold, and the newly injected TPU material can pass through the circular holes 30 of the waterproof breathable cloth 3 and flow into the annular groove b3.

[0049] The mold cavities of the lower molds of the mold A and the mold B are provided with corresponding positioning posts 4 , and the inner ring component 11 is provided with positioning holes 100 matched with the positioning posts 4 .

[0050] Reference Figures 8 to 11 A sole comprises a midsole 2, wherein a groove 20 is provided on the upper surface of the midsole, wherein the above-mentioned ventilation device applied to the sole is arranged in the groove 20, and through holes 201 corresponding to the above-mentioned ventilation holes 120 are arranged through the bottom of the groove 20, and the midsole 2 is connected to the outside world through the ventilation holes 201.

[0051] The bottom of the midsole is bonded with an outsole 21, and the bottom surface of the outsole 21 is provided with an anti-slip pattern.

[0052] A waterproof and breathable shoe comprises an upper and the above-mentioned sole equipped with a breathable device, wherein the upper is connected to the upper end of the sole 2.

[0053] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A ventilation device applied to a shoe sole, characterized in that: It includes a gasket and a waterproof breathable cloth covering the surface of the gasket. The surface of the gasket is provided with multiple convex parts, and multiple air holes are provided in the convex parts. The peripheral edge of the waterproof breathable cloth is provided with multiple circular holes. A gasket is stacked on the peripheral edge of the waterproof breathable cloth. The gasket is integrally formed with the gasket by penetrating the circular holes.

2. A breathable device for a shoe sole as claimed in claim 1, characterized in that: The plurality of protrusions form interconnected grooves, which are used for secondary injection molding and bonding of the waterproof and breathable fabric.

3. A breathable device for shoe soles according to claim 2, characterized in that: The bottom of the groove is provided with a plurality of protrusions, and the protrusions are used for abutting the waterproof and breathable cloth.

4. A breathable device for shoe soles according to claim 1, characterized in that: The gasket and the washer are integrally formed by injection molding of TPU material.

5. The breathable device for shoe soles according to claim 1, characterized in that: A plurality of inclined plates are arranged in the convex portion, and the air vents are formed between the inclined plates.

6. The breathable device for shoe soles according to claim 1, characterized in that: The thickness of the gasket is 1-3 mm.

7. The method for preparing a breathable device for a shoe sole according to claim 1, characterized in that: The steps include: 1) placing the TPU raw material in the lower mold cavity of mold A, closing the upper mold of mold A, heating and molding, cooling and opening the mold, and obtaining a semi-finished inner ring component of the breathable device, wherein the convex parts are grooved, and all the grooves are interconnected to form a grid; 2) Take a piece of waterproof breathable cloth, punch holes in the waterproof breathable cloth, and arrange the holes of the waterproof cloth to fit the periphery of the inner ring component to form a circle; 3) The inner ring component obtained in the previous step is placed in the lower mold cavity of mold B, leaving a gap between the inner ring component and the peripheral wall of the mold cavity, a waterproof breathable cloth is hung on the upper mold of mold B, the upper mold of mold B is closed, and TPU material is injected into the mold cavity of mold B. The inner ring component is bonded to the waterproof breathable cloth through the newly injected TPU material to form an integral body; 4) Cooling, opening the mold, and cutting off the excess waterproof breathable fabric along the edge of the breathable device to obtain the breathable device.

8. The method for preparing a breathable device for a shoe sole according to claim 7, characterized in that: The bottom surface of the upper mold of the mold B is provided with an annular groove aligned with the peripheral edge of the lower mold, and the newly injected TPU material can pass through the circular holes of the waterproof and breathable cloth and flow into the annular groove.

9. The method for preparing a breathable device for a shoe sole according to claim 7, characterized in that: The mold cavities of the lower mold of mold A and the lower mold of mold B are provided with corresponding positioning columns, and the inner ring component is provided with positioning holes that cooperate with the positioning columns.

10. A shoe sole, comprising a midsole, characterized in that: A groove is provided on the upper surface of the midsole, in which a ventilation device applied to the sole as claimed in any one of claims 1 to 9 is arranged, and through holes corresponding to the ventilation holes are arranged through the bottom of the groove.

11. A shoe sole according to claim 10, characterized in that: The bottom of the midsole is bonded with an outsole.

12. A waterproof and breathable shoe, characterized in that: The shoe comprises a shoe upper and a shoe sole equipped with a breathable device as claimed in claim 10, wherein the shoe upper is connected to the upper end of the shoe sole.

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