A perspiration system for waterproof shoes and waterproof shoes with the same
By incorporating pressure chambers, sweat-wicking channels, and one-way valves into the soles of waterproof shoes, the pressure changes during walking solve the problem of traditional waterproof shoes being unable to balance waterproofing and sweat wicking. This allows for effective removal of sweat and heat while maintaining waterproofing, thus improving wearing comfort.
Patent Information
- Application Number
- CN202521679568.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-08
AI Technical Summary
Traditional waterproof shoes cannot effectively balance waterproof and sweat-wicking performance, resulting in damp and stuffy feet, affecting wearing comfort, and potentially breeding bacteria.
Waterproof shoes are equipped with pressure chambers, sweat-wicking channels, and one-way valves on the soles. By utilizing the pressure changes during walking, sweat and heat are expelled through the sweat-wicking channels, while preventing water and air from entering, thus achieving airflow circulation.
While maintaining waterproof performance, it effectively wicks away heat and sweat from inside the shoe, improving comfort and making it suitable for various scenarios such as outdoor activities, sports, and rainy days.
Smart Images

Figure CN224670943U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of footwear technology, specifically to a waterproof shoe sweat-wicking system and a waterproof sweat-wicking shoe. Background Technology
[0002] Currently, footwear is a highly developed technological field with a wide variety of types, such as casual shoes, athletic shoes, boots (both tall and short), and rain boots. Casual shoes, athletic shoes, and boots (both tall and short) with uppers made of fabric, textiles, or natural leather can effectively wick away sweat and moisture from the feet, but they cannot prevent external moisture from seeping in. In wet conditions, they are easily splashed with water, causing discomfort. Furthermore, due to work or daily life needs, many people still go out in the rain and choose to wear waterproof shoes. To achieve their waterproof function, waterproof shoes typically use highly sealed materials and structural designs. For example, the upper of a waterproof shoe usually consists of a waterproof membrane and an outer layer adhered to the outside of the waterproof membrane. The upper and the inner lining glued to the inside of the waterproof membrane are used to make casual shoes, sports shoes, and boots of various lengths, such as waterproof rain boots. Waterproof rain boots are made of rubber and are injection molded. Since rubber itself has waterproof properties, and the rain boots are injection molded in one piece without gaps, they can provide waterproof protection for the user's feet. However, waterproof shoes and rain boots cannot wick moisture from the inside out, and air cannot circulate, resulting in excessively high internal temperatures. After wearing them for a long time, the sweat and moisture exhaled by the user's feet cannot be expelled and accumulate inside the shoes, leading to damp and stuffy feet. This not only affects wearing comfort but also easily breeds bacteria, causing problems such as odor and athlete's foot.
[0003] Currently, some waterproof shoes attempt to improve sweat-wicking performance by adding ventilation holes, but the presence of ventilation holes compromises the shoe's waterproofness, allowing water to easily enter the shoe through the holes. Some waterproof shoes also use breathable membrane materials; however, the sweat-wicking efficiency of breathable membranes is limited, and they are difficult to meet the sweat-wicking needs when the feet sweat a lot, thus failing to achieve a good balance between waterproof and sweat-wicking performance.
[0004] In rainy weather, outdoor water, or wading situations, people have a high demand for waterproof shoes. They also want shoes with good sweat-wicking properties to keep their feet dry and comfortable. The shortcomings of traditional waterproof shoes make it difficult to meet these needs. Therefore, it is particularly necessary to develop a waterproof shoe sweat-wicking system that can effectively balance waterproof and sweat-wicking performance. Utility Model Content
[0005] The purpose of this invention is to provide a sweat-wicking system for waterproof shoes and waterproof sweat-wicking shoes thereof, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a sweat-wicking system for waterproof shoes, the waterproof shoes comprising a waterproof upper and a sole connected to the waterproof upper, the sweat-wicking system being disposed on the sole, the sweat-wicking system comprising a pressure chamber, a sweat-wicking channel communicating with the pressure chamber, and a one-way valve disposed on the sweat-wicking channel, one end of the sweat-wicking channel communicating with the inside of the shoe, and the other end communicating with the outside of the shoe, the one-way valve being a valve body controlled by pressure to open or close, its opening direction being the same as the fluid flow direction of the sweat-wicking channel, the valve body having a flat opening, when the fluid pressure inside the shoe and / or the pressure chamber is applied to the valve body, the opening opens under the action of fluid pressure to communicate with the outside, allowing sweat to be discharged through the sweat-wicking channel, when the fluid pressure disappears, it remains closed to prevent water and / or air from entering the shoe.
[0007] Furthermore, the end of the sweat-wicking channel facing inwards from the shoe forms a first connecting hole that communicates with the air inside the shoe, and the end of the sweat-wicking channel facing outwards from the shoe forms a second connecting hole that communicates with the outside of the shoe.
[0008] Furthermore, the one-way valve is disposed on the perspiration channel between the pressure chamber and the second connecting hole, so that fluid is discharged unidirectionally from the pressure chamber to the second connecting hole, and water and / or air are prevented from entering the shoe.
[0009] Furthermore, the one-way valve is disposed on the perspiration channel between the first connecting hole and the pressure chamber, so that fluid enters the pressure chamber unidirectionally from the first connecting hole.
[0010] Furthermore, the perspiration channel has a Tesla valve structure, with the direction from the first connecting hole to the pressure chamber being the low-resistance direction and the direction from the second connecting hole to the pressure chamber being the high-resistance direction.
[0011] Furthermore, the pressure chamber is located at the corresponding heel position.
[0012] Furthermore, the valve body has an inclined surface or a curved surface, and the inclination of the inclined surface or the curvature of the curved surface gradually decreases towards the opening direction.
[0013] A waterproof and moisture-wicking shoe includes a waterproof upper and a sole connected to the waterproof upper, wherein the sole is provided with the aforementioned moisture-wicking system of the waterproof shoe.
[0014] Furthermore, the upper and / or lower surfaces of the sole are recessed inward to form pressure chamber grooves and sweat-wicking channels. When a bonding piece is tightly bonded to the upper and / or lower surfaces of the sole, it forms pressure chambers and sweat-wicking channels with the pressure chamber grooves and sweat-wicking channels.
[0015] Furthermore, the sole includes a midsole and an outsole. The lower surface of the midsole is recessed inward to form a pressure chamber groove and a sweat-wicking channel. When the upper surface of the outsole is sealed and bonded to the lower surface of the midsole, a pressure chamber and a sweat-wicking channel are formed between it and the pressure chamber groove and the sweat-wicking channel.
[0016] Furthermore, the waterproof upper is made of TPU material.
[0017] Furthermore, the waterproof upper is formed by attaching a waterproof membrane.
[0018] Furthermore, the sole includes a midsole and an outsole, with the waterproof upper integrally formed with the midsole. The sole includes a midsole and an outsole, with the lower surface of the midsole recessed inward to form a pressure chamber groove and a sweat-wicking channel. When the upper surface of the outsole is sealed and bonded to the lower surface of the midsole, a pressure chamber and a sweat-wicking channel are formed between it and the pressure chamber groove and the sweat-wicking channel.
[0019] Furthermore, the waterproof upper and midsole are made of either TPU or EVA.
[0020] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model sets up a pressure chamber, a sweat-wicking channel, and a one-way valve on the sole of the waterproof shoe. Utilizing the pressure changes experienced by the wearer while walking, when pressure is applied, the fluid in the pressure chamber is squeezed and discharged through the sweat-wicking channel; when the pressure is released, the pressure chamber rebounds, drawing sweat from inside the shoe into the pressure chamber for continuous circulation, forming an airflow circulation inside the shoe, improving airflow, and effectively expelling heat and sweat from inside the shoe while ensuring waterproofing, keeping the inside of the shoe dry and cool, and improving comfort. Moreover, the valve body of the one-way valve closes quickly when the fluid pressure is released, preventing external water and air from opening the closed opening to enter the shoe. While ensuring external waterproofing, it efficiently wicks away sweat from inside the shoe, ensuring the waterproof performance of the waterproof shoe and solving the problem of poor sweat wicking in traditional waterproof shoes. It can meet the usage needs of various scenarios such as outdoor activities, sports, rainy days, and wading, providing users with a dry and comfortable wearing experience. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the waterproof and sweat-wicking shoe of this utility model;
[0022] Figure 2 This is a schematic diagram of the waterproof upper structure in the waterproof and sweat-wicking shoes of this utility model;
[0023] Figure 3 This is a schematic diagram of the assembly structure of the waterproof and sweat-wicking shoes of this utility model;
[0024] Figure 4 This is a schematic diagram of the sole structure of the waterproof and sweat-wicking shoe of this utility model;
[0025] Figure 5This is a schematic diagram of the one-way valve structure in the waterproof and sweat-wicking shoes of this utility model;
[0026] Figure 6 This is a schematic diagram of the sole assembly structure of the waterproof and sweat-wicking shoe according to Embodiment 1 of this utility model;
[0027] Figure 7 This is a schematic diagram of another assembly structure of the sole of the waterproof and sweat-wicking shoe according to Embodiment 1 of this utility model;
[0028] Figure 8 This is a schematic diagram of the sole assembly structure of the waterproof and sweat-wicking shoe according to Embodiment 2 of this utility model;
[0029] Figure 9 This is a schematic diagram of the sole assembly structure of the waterproof and sweat-wicking shoe according to Embodiment 3 of this utility model;
[0030] Figure 10 This is a schematic diagram of another assembly structure of the sole of the waterproof and sweat-wicking shoe according to Embodiment 3 of this utility model;
[0031] Figure 11 This is a schematic diagram of another assembly structure of the sole of the waterproof and sweat-wicking shoe according to Embodiment 3 of this utility model;
[0032] Figure 12 This is a schematic diagram of another assembly structure of the sole of the waterproof and sweat-wicking shoe according to Embodiment 3 of this utility model;
[0033] In the diagram, 100-sole, 101-midsole, 102-outsole, 200-waterproof upper, 201-outer upper, 202-waterproof membrane, 203-inner lining, 1-pressure chamber, 2-sweat wicking channel, 21-first connecting hole, 22-second connecting hole, 23-front section of sweat wicking channel, 24-rear section of sweat wicking channel, 25-groove, 26-groove, 3-one-way valve, 31-opening. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] like Figures 1-12As shown, this embodiment provides a waterproof and moisture-wicking shoe, which includes a waterproof upper 200 and a sole 100. A moisture-wicking system is provided on the sole 100. The moisture-wicking system includes a pressure chamber 1, a moisture-wicking channel 2 communicating with the pressure chamber 1, and a one-way valve 3 disposed on the moisture-wicking channel 2. The pressure chamber 1 is located at the corresponding heel position, which is the part of the body that experiences the greatest impact during walking and running; its placement here provides better shock absorption and protection. One end of the moisture-wicking channel 2 connects to the inside of the shoe, and the other end connects to the outside of the shoe. The end of the moisture-wicking channel 2 facing the inside of the shoe forms a first connecting hole 21 that communicates with the air inside the shoe, and the end of the moisture-wicking channel 2 facing the outside of the shoe forms a second connecting hole 22 that communicates with the outside of the shoe. In this embodiment, as shown... Figure 5 As shown, the one-way valve 3 is a valve body that is controlled by pressure to open or close. Its opening direction is the same as the fluid flow direction of the sweat-wicking channel 2. The valve body has a flat opening 31, for example, the rear end of the valve body can be cut open with a utility knife to form a flat opening 31. When the fluid pressure inside the shoe and / or the pressure chamber 1 is applied to the valve body, the opening 31 opens under the action of fluid pressure to connect with the outside, allowing sweat to be discharged through the sweat-wicking channel 2. When the fluid pressure disappears, it remains closed to prevent water and / or air from entering the shoe. The valve body has an inclined surface or a curved surface, and the inclination of the inclined surface or the curvature of the curved surface gradually decreases towards the opening 31, similar to a duckbill valve. A duckbill valve or other one-way valves without moving parts can also be used. In this way, the one-way valve has no moving parts, avoiding the failure problem caused by wear and jamming of valve discs, springs and other components in traditional one-way valves, thus improving the stability and service life of the product. The forming method of the pressure chamber 1 and the sweat-wicking channel 2 is as follows:
[0036] 1. The upper surface of the sole 100 is recessed inward to form a pressure chamber groove and a sweat-wicking channel. When a bonding piece is tightly attached to the upper surface of the sole, a pressure chamber 1 and a sweat-wicking channel 2 are formed between the bonding piece and the pressure chamber groove and the sweat-wicking channel. Figure 2 As shown, the waterproof upper 200 is made of TPU material, which has good waterproof performance. It can also be formed by attaching a waterproof membrane, for example, it consists of a waterproof membrane 202, an outer upper 201 attached to the outside of the waterproof membrane 202, and an inner lining 203 attached to the inside of the waterproof membrane 202. The waterproof membrane can also be a waterproof and breathable membrane. The sole can be made of TPU foam particles. TPU foam particles have low density, good wear resistance, low hardness, good resilience, high tensile strength, and good tear resistance, which makes the sole lightweight, elastic, and cushioning, and increases the shock absorption performance of the sole. There is no limitation here, as long as it can be attached to the waterproof membrane to form a waterproof upper. The bonding sheet is bonded to the upper surface of the sole 100 by hot melting or adhesive.
[0037] 2. The lower surface of the sole 100 is recessed inward to form a pressure chamber groove and a sweat-wicking channel. When a bonding piece is tightly bonded to the lower surface of the sole, a pressure chamber 1 and a sweat-wicking channel 2 are formed between the pressure chamber groove and the sweat-wicking channel. The materials of the waterproof upper and sole and the bonding method with the bonding piece are the same as in method 1.
[0038] 3. The sole 100 includes a midsole 101 and an outsole 102. The lower surface of the midsole 101 is recessed inward to form a pressure chamber groove and a sweat-wicking channel. When the upper surface of the outsole 102 is sealed and bonded to the lower surface of the midsole 101, a pressure chamber 1 and a sweat-wicking channel 2 are formed between it and the pressure chamber groove and the sweat-wicking channel. The waterproof upper 200 and the midsole 101 are made of the same material as in method 1. The outsole 102 is made of rubber material and has good wear resistance.
[0039] 4. The sole 1 includes a midsole 101 and an outsole 102. The upper surface of the midsole 101 is recessed downward to form a pressure chamber groove and a front section of a sweat-wicking channel. When a bonding piece is tightly bonded to the upper surface of the midsole 101, a pressure chamber 1 and a front section of a sweat-wicking channel (referring to the section from the first connecting hole 21 to the pressure chamber 1) are formed between the pressure chamber groove and the front section of the sweat-wicking channel. When a bonding piece is tightly bonded to the upper surface of the outsole, a pressure chamber 1 and a front section of a sweat-wicking channel are formed between the pressure chamber groove and the front section of the sweat-wicking channel. The lower surface of the midsole 101 is recessed upward to form a rear section of a sweat-wicking channel (referring to the section from the pressure chamber 1 to the second connecting hole 22). When the upper surface of the outsole 102 is sealed and bonded to the lower surface of the midsole 101, a rear section of a sweat-wicking channel is formed between the upper surface of the outsole 102 and the rear section of the sweat-wicking channel. The waterproof upper 200 and the midsole 101 are made of the same material as in method 1. The outsole 102 is made of rubber material and has good wear resistance.
[0040] 5. For example Figure 3 As shown, the sole 1 includes a midsole 101 and an outsole 102. The waterproof upper 200 is integrally formed with the midsole. The lower surface of the midsole 101 is recessed inward to form a pressure chamber groove and a sweat-wicking channel. When the upper surface of the outsole 102 is sealed and bonded to the lower surface of the midsole 101, a pressure chamber 1 and a sweat-wicking channel 2 are formed between it and the pressure chamber groove and the sweat-wicking channel. The waterproof upper 200 and the midsole 101 are made of EVA material, which is lightweight, elastic, and flexible, and has cushioning and elastic effects. There is no limitation here, as long as it is a waterproof material. The outsole 102 is made of rubber material, which has good wear resistance.
[0041] Among them, waterproof and sweat-wicking shoes made by molding methods 1 to 4 are suitable for casual shoes, sports shoes, etc., and can also be used for rain boots and rain shoes. Waterproof and sweat-wicking shoes made by molding method 5 are more suitable for rain boots, rain shoes, or environments that require long-term immersion in water.
[0042] This embodiment uses molding method 3 as an example for further explanation:
[0043] Example 1:
[0044] like Figures 4-7 As shown, the one-way valve 3 is disposed on the perspiration channel 2 between the first connecting hole 21 and the pressure chamber 1, so that fluid enters the pressure chamber 1 unidirectionally from the first connecting hole 21. For ease of understanding, the perspiration channel between the first connecting hole 21 and the pressure chamber 1 is referred to as the front section 23 of the perspiration channel, and the perspiration channel between the pressure chamber 1 and the second connecting hole 22 is referred to as the rear section 24 of the perspiration channel. The front section 23 of the perspiration channel has a groove 25, and the one-way valve 3 is disposed in the groove 25. The one-way valve 3 is positioned close to the pressure chamber 1, and one end of the one-way valve 3 opposite to the opening 31 is connected to the perspiration channel 2. The opening 31 faces the pressure chamber 1. The perspiration channel 2 can be a normal flow channel or a one-way channel, such as a Tesla valve structure. The flow channel, from the first connecting hole 21 to the pressure chamber 1, is in a low-resistance direction. The first connecting hole 21 is located at the end of the front section 23 of the sweat-wicking channel. One or more holes can be set. It extends through the upper surface of the sole and communicates with the inside of the shoe. The rear section 24 of the sweat-wicking channel is also a one-way channel, such as the flow channel of a Tesla valve structure. The flow channel, from the second connecting hole 22 to the pressure chamber 1, is in a high-resistance direction. It extends from the pressure chamber 1 to the outside of the sole. The second connecting hole 22 is located on the outside of the sole. It can be located at the rear of the sole or on the side of the sole. When it is located on the side of the sole, the rear section 24 of the sweat-wicking channel also extends to the side, forming a visible air outlet. To enhance the visibility, the extension is sealed by a transparent sealing strip. The rear section 24 of the sweat-wicking channel has a through hole on the transparent sealing strip that matches the second connecting hole 22, allowing the user to intuitively feel the air-venting effect. When the wearer walks and steps down, the pressure chamber 1 is compressed under the influence of body weight. Due to the single or double one-way nature of the one-way valve 3 and the Tesla valve, the one-way valve 3 is closed, making it difficult for fluid to enter the sweat-wicking channel 2 through the first connecting hole 21. Therefore, the hot and humid air and sweat in the pressure chamber 1 are discharged through the rear section 24 of the sweat-wicking channel from the second connecting hole 22. The hot and humid air and sweat discharged from the second connecting hole 22 are then discharged outside the shoe. Correspondingly, when the foot is lifted, the pressure chamber 1 returns to its original position. Due to the one-way nature of the Tesla valve, outside air and moisture are discharged. Since it is difficult for the sweat to enter through the rear section 24 of the sweat-wicking channel, the hot and humid air and sweat inside the shoe enter the sweat-wicking channel 2 through the first connecting hole 21. The opening 31 of the one-way valve 3 opens under the action of fluid pressure, and the hot and humid air and sweat are discharged through the opening 31 and sucked into the pressure chamber 1. After the fluid pressure disappears, the opening 31 closes, preventing fluid backflow on the one hand and preventing outside air and moisture from entering on the other. When the raised foot touches the ground again, it squeezes the pressure chamber 1 again. The hot and humid air and sweat in the pressure chamber 1 are discharged through the rear section 24 of the sweat-wicking channel from the second connecting hole 22. The hot and humid air and sweat discharged from the second connecting hole 22 are discharged out of the shoe. This cycle is repeated to achieve one-way discharge of hot and humid air and sweat from the shoe to the outside.
[0045] Example 2:
[0046] like Figure 4 , Figure 5 and Figure 8 As shown, this embodiment has the same sole structure as Embodiment 1. The difference is that in this embodiment, the one-way valve 3 is located on the sweat-wicking channel 2 between the pressure chamber 1 and the second connecting hole 22, specifically in the rear section 24 of the sweat-wicking channel. This allows fluid to drain unidirectionally from the pressure chamber 1 to the second connecting hole 22, preventing water and / or air from entering the shoe. The rear section 24 of the sweat-wicking channel has a groove 26, and the one-way valve 3 is located within this groove 26. The one-way valve 3 is positioned close to the pressure chamber 1, with one end of the one-way valve 3 facing away from the opening 31, which communicates with the rear section 24 of the sweat-wicking channel. The sweat-wicking channel 2 is a one-way channel, such as a flow channel with a Tesla valve structure. The direction from the first connecting hole 21 to the pressure chamber 1 is a low-resistance direction. The first connecting hole 21 is located at the end of the air intake duct 2; one or more holes can be installed. It extends through the upper surface of the sole and connects to the inside of the shoe. The rear section 24 of the sweat-wicking channel can be a normal flow channel or a one-way channel, such as a flow channel with a Tesla valve structure. The direction from the second connecting hole 22 to the pressure chamber 1 is a high-resistance direction. It extends from the pressure chamber 1 to the outside of the sole. The second connecting hole 22 is located on the outside of the sole, either at the rear or side. When located on the side, the rear section 24 of the sweat-wicking channel also extends to the side, forming a visible air outlet. To enhance visibility, a transparent sealing strip seals the extended rear section 24 of the sweat-wicking channel, and a through-hole matching the second connecting hole 22 is opened on the transparent sealing strip, allowing the user to intuitively feel the exhaust effect. When the wearer walks and steps down, the pressure chamber 1 is compressed under the force of the wearer's weight. Due to the one-way nature of the Tesla valve... Due to the directional nature of the fluid, it is difficult for the fluid to enter the perspiration channel 2 through the first connecting hole 21. Therefore, the hot and humid air and sweat in the pressure chamber 1 enter the rear section 24 of the perspiration channel through the one-way valve 3. The opening 31 of the one-way valve 2 opens under the action of fluid pressure, and the hot and humid air and sweat are discharged through the opening, enter the rear section 24 of the perspiration channel, and are discharged through the second connecting hole 22. The discharged hot and humid air and sweat are discharged outside the shoe. Afterward, the fluid pressure disappears, and the opening 31 closes, preventing fluid backflow and preventing outside air and moisture from entering. Correspondingly, when When the foot is lifted, the pressure chamber 1 returns to its original position. Due to the one-way nature of the Tesla valve and the opening and closing of the one-way valve 31, it is difficult for outside air to enter through the rear section 24 of the sweat-wicking channel. Therefore, the hot and humid air and sweat inside the shoe are drawn into the pressure chamber 1 through the first connecting hole 21 and the front section 23 of the sweat-wicking channel. When the lifted foot touches the ground again, it squeezes the pressure chamber 1 again. The hot and humid air and sweat inside the pressure chamber 1 are discharged through the rear section 24 of the sweat-wicking channel and the second connecting hole 22. This cycle is repeated to achieve one-way discharge of hot and humid air and sweat from inside the shoe to the outside.
[0047] Example 3:
[0048] like Figure 4 , Figure 5 and Figures 9-12As shown, this embodiment has the same sole structure as Embodiment 1 or Embodiment 2. The difference is that the one-way valve 3 is simultaneously located on both the front section 23 and the rear section 24 of the sweat-wicking channel. This allows airflow to flow unidirectionally from the first connecting hole 21 into the pressure chamber 1, and unidirectionally from the pressure chamber 1 to the second connecting hole 22, preventing water and / or air from entering the shoe. The one-way valve 3 is positioned close to the pressure chamber 1. One end of the one-way valve 3 on the front section 23 of the sweat-wicking channel, facing away from the opening 31, is connected to the front section 23, with the opening 31 facing the pressure chamber 1. One end of the one-way valve 3 on the rear section 24 of the sweat-wicking channel, facing away from the opening 31, is connected to the pressure chamber 1, with the opening 31 also connected to the rear section 24. The sweat-wicking channel 2 can be... The flow channel can be a regular flow channel or a unidirectional channel, such as a Tesla valve structure flow channel. The direction from the first connecting hole 21 to the pressure chamber 1 is a low-resistance direction. The first connecting hole 21 is located at the end of the front section 23 of the sweat-wicking channel; one or more holes can be installed. It extends through the upper surface of the sole and connects to the inside of the shoe. The rear section 24 of the sweat-wicking channel can be a regular flow channel or a unidirectional air intake channel, such as a Tesla valve structure flow channel. The direction from the second connecting hole 22 to the pressure chamber 1 is a high-resistance direction, extending from the pressure chamber 1 to the outside of the sole. The second connecting hole 22 is located on the outside of the sole; it can be located at the rear of the sole or on the side of the sole. When located on the side of the sole, the rear section 24 of the sweat-wicking channel also extends to the side, forming a visible air outlet channel. To enhance the visual effect... The rear section 24 of the sweat-wicking channel is sealed by a transparent sealing strip, and a through hole matching the second connecting hole 22 is opened on the transparent sealing strip, allowing the user to intuitively feel the air-venting effect. When the wearer walks, the pressure chamber 1 is compressed under the action of body weight. Due to the single or double one-way nature of the one-way valve 3 and the Tesla valve, the one-way valve 3 is in a closed state, making it difficult for fluid to enter the sweat-wicking channel 2 through the first connecting hole 21. Therefore, the hot and humid air and sweat in the pressure chamber 1 enter the rear section 24 of the sweat-wicking channel through the one-way valve 3. The opening 31 of the one-way valve 2 opens under the action of fluid pressure, and the hot and humid air and sweat are discharged through the opening, enter the rear section 24 of the sweat-wicking channel, and are discharged from the second connecting hole 22. The discharged hot and humid air and sweat are removed from the shoe. When the fluid pressure disappears, opening 31 closes, preventing fluid backflow and the entry of outside air and moisture. Correspondingly, when the foot is lifted, pressure chamber 1 returns to its original position. Due to the one-way nature of the Tesla valve and the closure of the one-way valve 31, outside air and moisture cannot easily enter from the rear section 24 of the sweat-wicking channel. Therefore, the warm, humid air and sweat inside the shoe pass through the first connecting hole 21 and the one-way valve 3. The opening 31 of the one-way valve 3 opens under fluid pressure, allowing the warm, humid air and sweat to exit through opening 31 and enter the front section 23 of the sweat-wicking channel, where they are drawn into pressure chamber 1. When the fluid pressure disappears again, opening 31 closes, preventing fluid backflow and the entry of outside air and moisture. When the lifted foot touches the ground again, pressure chamber 1 is compressed again.The hot, humid air and sweat inside the pressure chamber 1 are discharged through the rear section 24 of the sweat-wicking channel and then through the second connecting hole 22. This process of humid air and sweat exiting through the second connecting hole 22 is then discharged outside the shoe, creating a continuous cycle that achieves unidirectional discharge of hot, humid air and sweat from inside the shoe.
[0049] This invention features a pressure chamber, a sweat-wicking channel, and a one-way valve on the sole of a waterproof shoe. The one-way valve is positioned on the sweat-wicking channel, creating airflow circulation within the shoe during walking. This improves air circulation inside the shoe, effectively expelling heat and sweat while maintaining waterproofing, keeping the shoe dry and cool and enhancing comfort. Furthermore, the one-way valve closes rapidly when the fluid pressure disappears, preventing external water and air from entering the shoe. This ensures efficient sweat drainage while maintaining external waterproofing, making it suitable for various weather conditions and environments, especially in rainy weather or when walking in puddles.
[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A sweat-wicking system for waterproof shoes, characterized in that: The waterproof shoe includes a waterproof upper and a sole connected to the waterproof upper. The wicking system is located on the sole and includes a pressure chamber, a wicking channel communicating with the pressure chamber, and a one-way valve on the wicking channel. One end of the wicking channel is connected to the inside of the shoe, and the other end is connected to the outside of the shoe. The one-way valve is a valve body that is controlled by pressure to open or close, and its opening direction is the same as the fluid flow direction of the wicking channel. The valve body has a flat opening. When the fluid pressure inside the shoe and / or the pressure chamber is applied to the valve body, the opening opens under the action of fluid pressure to communicate with the outside, allowing sweat to be discharged through the wicking channel. When the fluid pressure disappears, it remains closed to prevent water and / or air from entering the shoe.
2. The sweat-wicking system of the waterproof shoe according to claim 1, characterized in that: The end of the sweat-wicking channel facing inwards from the shoe forms a first connecting hole that communicates with the air inside the shoe, and the end of the sweat-wicking channel facing outwards from the shoe forms a second connecting hole that communicates with the outside of the shoe.
3. The sweat-wicking system of the waterproof shoe according to claim 2, characterized in that: The one-way valve is located on the perspiration channel between the pressure chamber and the second connecting hole, so that fluid can be discharged unidirectionally from the pressure chamber to the second connecting hole, and prevent water and / or air from entering the shoe.
4. The sweat-wicking system of the waterproof shoe according to claim 2 or 3, characterized in that: The one-way valve is installed on the perspiration channel between the first connecting hole and the pressure chamber, so that fluid can enter the pressure chamber unidirectionally from the first connecting hole.
5. The sweat-wicking system of the waterproof shoe according to claim 2, characterized in that: The perspiration channel has a Tesla valve structure, with the direction from the first connecting hole to the pressure chamber being the low-resistance direction and the direction from the second connecting hole to the pressure chamber being the high-resistance direction.
6. The sweat-wicking system of the waterproof shoe according to claim 1, characterized in that: The pressure chamber is located at the corresponding heel position.
7. The sweat-wicking system of the waterproof shoe according to claim 1, characterized in that: The valve body has an inclined surface or a curved surface, and the inclination of the inclined surface or the curvature of the curved surface gradually decreases towards the opening direction.
8. A waterproof and sweat-wicking shoe, characterized in that: The shoe includes a waterproof upper and a sole connected to the waterproof upper, wherein the sole is provided with a sweat-wicking system as described in any one of claims 1 to 7.
9. The waterproof and sweat-wicking shoes according to claim 8, characterized in that: The upper and / or lower surfaces of the sole are recessed inward to form a pressure chamber and a sweat-wicking channel. When a bonding piece is tightly bonded to the upper and / or lower surfaces of the sole, a pressure chamber and a sweat-wicking channel are formed between the bonding piece and the pressure chamber and the sweat-wicking channel.
10. The waterproof and sweat-wicking shoes according to claim 8, characterized in that: The sole includes a midsole and an outsole. The lower surface of the midsole is recessed inward to form a pressure chamber groove and a sweat-wicking channel. When the upper surface of the outsole is sealed and bonded to the lower surface of the midsole, a pressure chamber and a sweat-wicking channel are formed between it and the pressure chamber groove and the sweat-wicking channel.
11. The waterproof and sweat-wicking shoes according to any one of claims 8 to 10, characterized in that: The waterproof upper is made of TPU material.
12. The waterproof and sweat-wicking shoes according to any one of claims 8 to 10, characterized in that: The waterproof upper is formed by attaching a waterproof membrane.
13. The waterproof and sweat-wicking shoes according to claim 8, characterized in that: The sole includes a midsole and an outsole. The waterproof upper is integrally formed with the midsole. The lower surface of the midsole is recessed inward to form a pressure chamber groove and a sweat-wicking channel. When the upper surface of the outsole is sealed and bonded to the lower surface of the midsole, a pressure chamber and a sweat-wicking channel are formed between it and the pressure chamber groove and the sweat-wicking channel.
14. The waterproof and sweat-wicking shoes according to claim 13, characterized in that: The waterproof upper and midsole are made of either TPU or EVA.