Waterproof, breathable, shock-absorbing shoe sole

By designing cavities, spiral channels, and through-hole structures in the sole, the problems of poor shock absorption, insufficient breathability, and insufficient waterproofing in existing soles have been solved, achieving better shock absorption, breathability, and waterproofing effects, and improving wearing comfort and usage scenarios.

CN224344386UActive Publication Date: 2026-06-12MAOTAI FUJIAN SOLES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAOTAI FUJIAN SOLES CO LTD
Filing Date
2025-07-02
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing shoe soles have poor shock absorption, poor breathability, and lack waterproof structure, affecting wearing comfort and usage scenarios.

Method used

Design a waterproof, breathable, and shock-absorbing shoe sole that uses a cavity and spiral channel structure between the midsole and outsole, combined with through holes and ventilation channels, to achieve cushioning, breathability, and waterproofing functions.

Benefits of technology

It improves the shock absorption of the sole, keeps feet dry, expands the usage scenarios, and enhances the environmental adaptability and comfort of the sole.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a waterproof and breathable shock attenuation shoe sole, including insole and compound in the lower end of insole big bottom, be equipped with cavity and spiral channel between above-mentioned insole and above-mentioned big bottom, spiral channel from the cavity rim by inside to outside convolute expansion to intercommunicate outside, the top wall of cavity is equipped with through -hole. The insole of the present application is equipped with the cavity between big bottom, can high -efficiently buffer ground impact force, when walking, the stress of foot is greatly reduced, alleviates fatigue, forms more optimal protection to joint, improves the comfort and safety of motion and daily walking.
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Description

Technical Field

[0001] This utility model relates to the field of shoe soles, and in particular to a waterproof, breathable and shock-absorbing shoe sole. Background Technology

[0002] Shoes, as an essential part of daily life, serve functions such as warmth, protection, and aesthetics. Currently, conventional shoe soles generally have poor shock absorption performance, failing to effectively cushion the impact of the ground during walking or exercise, easily leading to foot fatigue and potentially affecting joint health. Their poor breathability also hinders air circulation, causing feet to become damp after prolonged wear, fostering bacterial growth and odor, thus reducing comfort. Furthermore, most traditional shoe soles lack waterproofing, allowing moisture to easily seep into the shoe in wet or humid environments, wetting the feet and impacting usability and overall experience. Therefore, developing improved shoe soles to address these issues is necessary. Utility Model Content

[0003] This invention provides a waterproof, breathable, and shock-absorbing shoe sole to solve the problems of poor shock absorption, poor breathability, and lack of waterproof structure in existing shoe soles.

[0004] The present invention adopts the following technical solution:

[0005] A waterproof, breathable, and shock-absorbing shoe sole includes a midsole and an outsole bonded to the lower end of the midsole. A cavity and a spiral channel are provided between the midsole and the outsole. The spiral channel expands from the inside to the outside of the cavity edge and connects to the outside. The top wall of the cavity is provided with a through hole.

[0006] Furthermore, the upper surface of the aforementioned midsole is provided with interlocking venting grooves, and the upper opening of the aforementioned through hole is located at the bottom of the venting groove.

[0007] Furthermore, the bottom wall of the cavity protrudes downwards in a hemispherical shape.

[0008] Furthermore, the diameter of the through hole is 2.0-4.0 mm, preferably 3.0 mm.

[0009] Furthermore, the aforementioned midsole is made of EVA or TPU material, with the aforementioned midsole being made of EVA material.

[0010] Furthermore, the lower surface of the outsole is provided with anti-slip patterns, and the outsole is made of rubber or TPU material, preferably rubber.

[0011] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages:

[0012] 1. The cavity between the midsole and outsole of this application can effectively cushion the impact of the ground, greatly reduce the force on the foot during walking and exercise, relieve fatigue, provide better protection for the joints, and improve the comfort and safety of sports and daily walking.

[0013] 2. The sole of this application uses a cavity and a spiral channel to cooperate. The top wall of the cavity has a through hole to create a good air circulation channel, accelerate the air exchange inside the shoe, keep the feet dry, inhibit bacterial growth and odor, and maintain a comfortable experience even after long-term wear.

[0014] 3. The midsole and outsole of this application are provided with a spiral channel and a unique waterproof structure design, which effectively prevents water from seeping in. In wet and water-filled scenarios, it can keep the inside of the shoe dry, expand the usage scenarios, improve the environmental adaptability of the sole, optimize the performance of the sole in all aspects, and meet the diverse needs of users. Attached Figure Description

[0015] Figure 1 This is a bottom view of the sole structure of the present invention.

[0016] Figure 2 This is a top-view structural diagram of the midsole of this utility model.

[0017] Figure 3 This is a cross-sectional view of the midsole structure of this utility model.

[0018] Figure 4 This is a top view of the sole structure of the present invention.

[0019] Figure 5 The sole edge of this utility model Figure 4 A schematic diagram of the cross-sectional structure along the AA direction.

[0020] Among them, 1 is the midsole; 10 is the cavity; 11 is the venting groove; 101 is the through hole; 102 is the spiral channel; 2 is the outsole; and 21 is the bottom wall of the cavity. Detailed Implementation

[0021] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0022] Reference Figures 1-5 A waterproof, breathable, and shock-absorbing shoe sole includes a midsole 1 and an outsole 2 composited at the lower end of the midsole 1. A cavity 10 and a spiral channel 102 are provided between the midsole 1 and the outsole 2. The spiral channel 102 expands from the inside to the outside of the cavity 10 through the spiral channel 102. The cavity 10 is connected to the outside of the shoe sole through the spiral channel 102. A through hole 101 is provided on the top wall of the cavity 10. The cavity 10 is connected to the inside of the shoe cavity through the through hole 101.

[0023] Reference Figure 3 , Figure 4 The upper surface of the midsole 1 is provided with interlocking ventilation grooves 11. The upper opening of the through hole 101 is located at the bottom of the ventilation groove 11. The ventilation groove 11 increases the breathability of the surface of the midsole 1, so that the foot can maintain good breathability when stepping on the midsole 1.

[0024] Reference Figure 3 The cavity bottom wall 21 protrudes downwards in a hemispherical shape. When the sole touches the ground, the cavity bottom wall 21 flattens under the pressure of the ground, and the air inside the cavity 10 is simultaneously blown towards the through hole 101 and the spiral channel 102, making it difficult for water on the ground to enter the sole along the spiral channel 102. When the cavity bottom wall 21 is subjected to a brief impact, the cavity 10 enhances the shock absorption function of the sole because the air inside the cavity 10 is simultaneously blown towards the through hole 101 and the spiral channel 102 for a delayed time.

[0025] Reference Figure 2 , Figure 3 The radius of curvature of the groove in the spiral channel 102 decreases from the outside to the inside, and the tension of the inner wall of the spiral channel 102 increases from the outside to the inside. When gas or water flows inward along the spiral channel 102, the rotational resistance it encounters increases. Since the mass of the water is greater than that of the gas, the interaction force between the water and the inner wall of the spiral channel 102 is much greater than the interaction force between the gas and the inner wall of the spiral channel 102. The water will stop at the outer layer of the spiral channel 102, while the gas can spiral inward to the inner layer of the spiral channel 102 and then enter the shoe through the ventilation holes. Therefore, the waterproof and breathable sole can effectively combine breathability and waterproofing.

[0026] The diameter of the through hole 101 is 2.0-4.0 mm, preferably 3.0 mm.

[0027] The aforementioned midsole 1 is made of EVA or TPU material. The aforementioned midsole 1 is made of EVA material, which is soft and has good elasticity.

[0028] The lower surface of the outsole 2 is provided with an anti-slip pattern, which enhances the anti-slip function of the sole. The outsole 2 is made of rubber or TPU, preferably rubber.

[0029] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A waterproof, breathable, and shock-absorbing shoe sole, comprising a midsole and an outsole bonded to the lower end of the midsole, characterized in that: A cavity and a spiral channel are provided between the insole and the outsole. The spiral channel expands from the inside to the outside along the edge of the cavity to connect with the outside. The top wall of the cavity is provided with a through hole.

2. The waterproof, breathable, and shock-absorbing shoe sole as described in claim 1, characterized in that: The upper surface of the midsole is provided with interlocking venting grooves, and the upper opening of the through hole is located at the bottom of the venting groove.

3. The waterproof, breathable, and shock-absorbing shoe sole as described in claim 1, characterized in that: The bottom wall of the cavity bulges downward in a hemispherical shape.

4. The waterproof, breathable, and shock-absorbing shoe sole as described in claim 1, characterized in that: The diameter of the through hole is 2.0-4.0 mm.

5. The waterproof, breathable, and shock-absorbing shoe sole as described in claim 1, characterized in that: The midsole is made of EVA or TPU material.

6. The waterproof, breathable, and shock-absorbing shoe sole as described in claim 1, characterized in that: The lower surface of the outsole is provided with an anti-slip pattern.