One-way valve, ventilation mechanism, ventilation insole and sole

Abstract

A one-way valve, a ventilation mechanism, a ventilation insole and a sole relate to the technical field of shoe structures. The one-way valve comprises a valve body, an air inlet hole is provided at the air inlet end of the valve body, a flat mouth is provided at the air outlet end of the valve body, a flow guide is provided at the air outlet end of the flat mouth, and a gap is left between the flow guide and the flat mouth; the air entering through the air inlet hole can flow to the other end of the one-way valve through the valve body, the flat mouth, the gap between the flow guide and the flat mouth, and when the airflow flows in the reverse direction, the air flowing directly to the flat mouth can be diverted to both sides of the flat mouth under the action of the flow guide, so that the flat mouth is closed by the pressure of the airflow. The present invention is provided with a normally open flat mouth for normal air intake, and when exhausting, the flat mouth can be flattened and closed under the action of the airflow pressure to prevent gas from flowing out, thereby realizing a one-way ventilation function, and at the same time the flow guide can prevent the reverse airflow from rushing directly into the flat mouth and affecting its normal closure. The present invention is not only simple in structure, low in failure rate, and more durable, but also easy to implement.

Description

Technical Field

[0001] The present invention relates to the technical field of shoe structures, and in particular to a one-way valve, a ventilation mechanism, a ventilation insole and a sole. Background Art

[0002] Currently, some shoes on the market are equipped with ventilation mechanisms to improve the breathability of the shoes. The ventilation mechanism generally includes an air bag and a one-way valve that controls the air intake and exhaust of the air bag. Chinese patent document CN 215110727 U discloses a one-way gas control valve, which includes a first cavity, a spring, a silicone valve core, and a second cavity. One end of the first cavity is provided with an air outlet. The outside of the first cavity is fixedly connected to the second cavity. The inside of the second cavity is provided with a silicone valve core, and one side of the silicone valve core is provided with a spring. Although the one-way gas control valve realizes a one-way ventilation function, its structure is relatively complex. It is mainly assembled from multiple parts such as the first cavity, the spring, the silicone valve core, and the second cavity. The complex structure makes the one-way valve have a high failure rate and poor durability. Summary of the Invention

[0003] The object of the present invention is to provide a one-way valve with a simple structure, a low failure rate and better durability.

[0004] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a one-way valve, comprising a valve body, an air inlet end of the valve body is provided with an air inlet hole, an air outlet end of the valve body is provided with a flat mouth, an air outlet end of the flat mouth is provided with a flow guide, and a gap is left between the flow guide and the flat mouth;

[0005] The air entering through the air inlet can flow to the other end of the one-way valve through the gap between the valve body, the flat mouth, and the guide piece and the flat mouth. When the airflow flows in the opposite direction, the air flowing directly to the flat mouth can be diverted to both sides of the flat mouth under the action of the guide piece, causing the flat mouth to close under the action of the airflow pressure.

[0006] Preferably, the flat mouth includes fitting parts on the upper and lower sides and connecting parts on the left and right sides, the fitting parts and the connecting parts are connected as one, and the fitting parts can fit together inwards when subjected to airflow pressure, thereby closing the flat mouth.

[0007] Preferably, an outwardly expanding bulge is provided in the middle of the fitting portion, and the bulge is used to pull the two ends of the fitting portion to limit the vibration generated when it is subjected to air flow fluctuations.

[0008] Preferably, the one-way valve further comprises a valve housing, the valve body is mounted in the valve housing, two sides of the flow guide are fixed to the inner wall of the valve housing, and a gap is left between the other two sides and the inner wall of the valve housing.

[0009] Preferably, the valve housing is provided with a blocking portion for blocking the airflow from flowing toward the rear of the flat mouth.

[0010] Preferably, the side wall of the flow guide extends toward the flat mouth and passes over the air outlet end of the flat mouth, thereby covering the air outlet end of the flat mouth.

[0011] In one embodiment of the present invention, a ventilation mechanism is also provided, which includes an air bag, wherein the air bag is provided with an air inlet pipe and an air outlet pipe, the air outlet pipe is provided with a one-way air outlet valve, and the air inlet pipe is provided with the above-mentioned one-way valve.

[0012] In another embodiment of the present invention, there is also provided a ventilation insole, which includes the above-mentioned ventilation mechanism, wherein the ventilation mechanism is arranged inside the insole, and the air inlet pipe and the air outlet pipe are both connected to the outside of the insole and are staggered.

[0013] In another embodiment of the present invention, a ventilation sole is also provided, which includes the above-mentioned ventilation mechanism, wherein the ventilation mechanism is arranged inside the sole, and the air inlet pipe and the air outlet pipe are both connected to the outside of the sole and are staggered.

[0014] Preferably, the airbag includes an upper bladder body and a bottom cover, an inner recess is provided at the rear end of the bottom of the sole, the airbag is installed in the inner recess and the upper bladder body is of the same shape as the inner recess and is connected as a whole, the bottom cover includes a bottom wall and a U-shaped side wall, the U-shaped side wall is provided with an inwardly protruding limiting portion at a position below the top end thereof, the length of the bottom wall is greater than the length of the inner recess, the upper bladder body, U-shaped side wall and bottom wall are interconnected and surround an inner cavity to form the airbag, and the limiting portion rests on the upper wall of the inner recess, and the bottom wall and the U-shaped side wall are both fixedly connected to the outer wall of the sole.

[0015] Preferably, an air outlet slot is provided on the upper surface of the sole at a position away from the air bag, and the air outlet pipe is connected to the air outlet slot through an air transmission channel provided in the sole.

[0016] The present invention provides a normally open flat mouth for normal air intake. During exhaust, the flat mouth is compressed and closed by the airflow pressure, preventing air from flowing out, thereby achieving a one-way ventilation function. Simultaneously, the flow guide prevents reverse airflow from directly entering the flat mouth and affecting its normal closure. The present invention not only has a simple structure, a low failure rate, and improved durability, but is also easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 For the three-dimensional one-way valve Figure 1 ;

[0018] Figure 2 For the three-dimensional one-way valve Figure 2 ;

[0019] Figure 3 It is a three-dimensional picture of a flat mouth;

[0020] Figure 4 is a cross-sectional view of a one-way valve;

[0021] Figure 5 A three-dimensional diagram of the insole;

[0022] Figure 6 is a schematic diagram of the structure of the lower pad;

[0023] Figure 7 A three-dimensional image of the sole;

[0024] Figure 8 is a cross-sectional view of the sole;

[0025] Figure 9 Schematic diagram of the structure of the sole;

[0026] Figure 10 The three-dimensional bottom cover Figure 1 ;

[0027] Figure 11 The three-dimensional bottom cover Figure 2 .

[0028] In the picture:

[0029] 1——Valve body 2——Air inlet 3——Flat mouth

[0030] 3a——fitting part 3a1——raised part 3b——connecting part

[0031] 4 - Valve housing 4a - blocking part

[0032] 5 - guide piece 6 - air bag 7 - intake pipe

[0033] 8 - Exhaust pipe 9 - One-way exhaust valve 10 - Insole

[0034] 11 - sole 12 - upper bladder 13 - bottom cover

[0035] 13a——bottom wall 13b——U-shaped side wall 13c——limiting part

[0036] 14 - inner concave portion 15 - air outlet slot 16 - air transmission channel

[0037] 17——End plate 18——Exhaust hole 19——Connecting channel

[0038] 20——Upper pad 21——Lower pad 22——Return spring

[0039] 23-Elastic skeleton. DETAILED DESCRIPTION

[0040] In the description of the present invention, it should be understood that terms such as "front," "rear," "inner," and "outer" indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. The term "plurality" refers to two or more (including two).

[0041] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the embodiments and the accompanying drawings. The contents mentioned in the embodiments are not intended to limit the present invention. Figures 1 to 11 .

[0042] Example 1

[0043] like Figures 1 to 4 As shown, this embodiment provides a one-way valve comprising a hollow valve body 1. An air inlet 2 is provided at the inlet end of the valve body 1, a flat spout 3 is provided at the outlet end of the valve body 1, and a flow guide 5 is provided at the outlet end of the flat spout 3, with a gap between the flow guide 5 and the flat spout 3. Air entering through the air inlet 2 can flow through the valve body 1, the flat spout 3, and the gap between the flow guide 5 and the flat spout 3 to the other end of the one-way valve (air flows from the inlet end of the one-way valve to the outlet end). However, when airflow is reversed (air flows from the outlet end of the one-way valve to the inlet end), air flowing directly toward the flat spout 3 can be diverted to either side of the flat spout 3 under the guidance of the flow guide 5, causing the flat spout 3 to close under the pressure of the airflow. The flat spout 3 is made of an elastic material and is normally open (when air is flowing in the forward direction). However, when air is flowing in the reverse direction, the sidewalls of the flat spout 3 can deform inward and be flattened, closing under the pressure of the external airflow. The guide member 5 can be made of a hard material or a soft material, preferably a hard material. The guide member 5 is a cover body, and its shape can be an umbrella shape.

[0044] The present invention provides a normally open flat mouth 3 for normal air intake. During exhaust, the flat mouth 3 can be flattened and closed by the airflow pressure, preventing air from flowing out, thereby achieving a one-way ventilation function. At the same time, the flow guide 5 can prevent reverse airflow from directly rushing into the flat mouth 3 and affecting its normal closure. The present invention not only has a simple structure, a low failure rate, and better durability, but is also easy to implement.

[0045] In this embodiment, see the attached Figure 4 The flat mouth 3 is in an open state under normal circumstances. Compared with the flat mouth 3 which is in a closed state under normal circumstances, the airflow can pass through the flat mouth 3 without squeezing the flat mouth 3 open, which can reduce the loss of airflow and shorten the air intake time, so that more and faster air can flow into the one-way valve from the flat mouth 3, thereby improving the air intake efficiency.

[0046] The flat mouth 3 includes a fitting portion 3a on the upper and lower sides and a connecting portion 3b on the left and right sides. The fitting portion 3a and the connecting portion 3b are connected as a whole, and the fitting portion 3a can fit together inward when subjected to air pressure, thereby closing the flat mouth 3. Figure 3 . The flat mouth 3 in this embodiment is integrally formed, and the two fitting parts 3a that fit together inward to close the flat mouth 3 and the two connecting parts 3b connecting the fitting parts 3a are connected as a whole and are not separated. Compared with the two separate flaps of the duckbill type that can be opened and closed, the noise generated is smaller. This is mainly because, in the opening and closing structure of the duckbill type, the two flaps are fixed at only one end, which makes it easy to cause vibration and generate noise when air flows through. The flat mouth 3 in this embodiment is different. Its structure is sleeve-shaped, with only the air outlet end not fixed, and the other parts are connected as a whole, so that it is not easy to vibrate when air flows through, thereby reducing noise.

[0047] Among them, the middle of the fitting part 3a is provided with a convex part 3a1 that expands outwards. The convex part 3a1 is used to pull the two ends of the fitting part 3a to limit the vibration generated when it is subjected to air flow fluctuations. Figure 3 . The raised portion 3a1 can be in an arc shape (equivalent to providing an arc-shaped curved portion on the flat side wall of the flat mouth 3). It should be noted that the airflow speed generated during the compression of the airbag is different, which can easily cause the side wall of the flat mouth 3 (i.e., the fitting portion 3a) to vibrate and cause the distance between the two fitting portions 3a to change, thereby generating noise. In this embodiment, by providing an outward-expanding raised portion 3a1 in the middle of the flat mouth 3, it can exert a pulling effect on the side walls at both ends (i.e., the two ends of the fitting portion 3a), thereby reducing the vibration of the side walls (the two ends of the fitting portion 3a) and avoiding noise. It can also keep the distance between the side walls of the flat mouth 3 (the two fitting portions 3a) unchanged, thereby avoiding noises such as "whistling" due to the reduction in the distance between the fitting portions 3a. On the other hand, although the noise can be reduced by increasing the width of the flat mouth 3, it will increase the difficulty of closing the flat mouth 3. Moreover, due to the space limitation of the one-way valve, the width of the flat mouth 3 cannot be set larger.

[0048] Among them, the above-mentioned one-way valve also includes a valve housing 4, the valve body 1 is installed in the valve housing 4, two sides of the guide member 5 are fixed on the inner wall of the valve housing 4, and a gap is left between the other two sides and the inner wall of the valve housing 4. The gap can guide the airflow directly flowing to the flat mouth 3 in the valve housing 4 to the two sides of the flat mouth 3 so that the flat mouth 3 is flattened and closed by the airflow pressure.

[0049] Among them, when the airflow in the valve housing 4 flows toward the air inlet 2, it is easy to pass over the flat mouth 3 and continue to flow to the rear of the flat mouth 3, reducing the closing efficiency of the flat mouth 3. Therefore, a blocking portion 4a for blocking the airflow from flowing to the rear of the flat mouth 3 can be provided on the valve housing 4. Figure 4The setting position of the blocking portion 4a corresponds to the connection between the flattenable area of ​​the flat mouth 3 and the non-flattenable area of ​​the flat mouth 3, so that the airflow entering the two sides of the flat mouth 3 along the guide member 5 can better and faster cause the flat mouth 3 to be flattened inward and closed.

[0050] Among them, see Appendix Figure 4 The side wall of the guide member 5 extends toward the flat mouth 3 and passes over the air outlet end of the flat mouth 3, thereby covering the air outlet end of the flat mouth 3, so that the air flow diverted by the guide member 5 can better flow to the two sides of the flat mouth 3 and directly squeeze it, so that the flat mouth 3 is flattened and closed, which has a higher closing efficiency.

[0051] It should be noted that the one-way valve can adopt an assembled structure for ease of manufacture and installation. The one-way valve is composed of a valve body 1, a flat nozzle 3, and a valve housing 4. The flow guide 5 is integrally connected to the valve housing 4. The flat nozzle 3 is tightly mounted on the valve body 1, and the valve housing 4 is tightly mounted where the flat nozzle 3 connects to the valve body 1. The end of the valve body 1 can be provided with an end plate 17, and the two can be integrally formed or detachably connected. The air inlet 2 is provided on the end plate 17. The outer dimensions of the end plate 17 can be larger than those of the valve body 1 to facilitate better fixation.

[0052] Example 2

[0053] like Figure 6 、 8 As shown, this embodiment provides a ventilation mechanism comprising an airbag 6, which is a compressible and self-restoring flexible shell made of TPU. Airbag 6 is provided with an inlet pipe 7 and an outlet pipe 8. The outlet pipe 8 is provided with a one-way outlet valve 9, while the inlet pipe 7 is provided with the one-way valve of Example 1. By providing the one-way valve of Example 1, this embodiment reduces the failure rate of the ventilation mechanism and improves its durability.

[0054] Example 3

[0055] like Figures 7-11 As shown, this embodiment provides a ventilation sole, which includes the ventilation mechanism in Example 2. The ventilation mechanism is arranged inside the sole 11, and the air inlet pipe 7 and the air outlet pipe 8 are both connected to the outside of the sole 11 and are staggered.

[0056] The sole 11 includes a forefoot portion and a heel portion, and the airbag 6 can be located at the bottom of the forefoot portion or the bottom of the heel portion, so that the airbag 6 can be compressed by being stepped on by the forefoot when the forefoot touches the ground, or by being stepped on by the heel when the heel touches the ground. In this embodiment, the airbag 6 is preferably located at the bottom of the heel portion. The air inlet pipe 7 of the airbag 6 can be used to connect the inner cavity of the airbag 6 with the external space on the side of the sole 11, specifically in multiple directions including front, back, left, and right. The air outlet pipe 8 can be used to connect the inner cavity of the airbag 6 with the space above the sole 11. In this way, air can be blown toward the top of the sole 11 when the airbag 6 is compressed, and air can be absorbed when the airbag 6 rebounds and resets. The absorbed gas can be gas blown out of the airbag 6 and retained in the shoe, or it can be outside air that enters the shoe through the gap between the shoe opening and the foot. Of course, the gas blown out of the airbag 6 can also escape from the shoe opening along the edge of the foot. Applying the above-mentioned sole 11 to shoes can realize ventilation inside the shoe body, keep the shoe dry, eliminate the conditions for bacterial growth and reproduction, make the wearer feel ventilated and comfortable, and make the feet less susceptible to bacterial infection.

[0057] To ensure that the gas blown out of the air outlet pipe 8 can better enter the shoe, an air outlet slot 15 can be provided on the upper surface of the forefoot portion, away from the airbag 6, and an air transmission channel 16 can be provided in the sole 11 to connect the air outlet slot 15 and the air outlet pipe 8. The provision of the air outlet slot 15 also allows the blown gas to directly dry the forefoot area, reducing moisture inside the shoe caused by foot sweating. The air outlet slots 15 can be strip-shaped grooves, with multiple slots 15 spaced apart on the upper surface of the forefoot portion. Each air outlet slot 15 is interconnected, allowing the gas from the air outlet pipe 8 to enter the shoe more dispersedly through the strip grooves, keeping all areas of the shoe as dry as possible.

[0058] Furthermore, a return spring 22 is provided within the airbag 6 to facilitate its rebound and return to its original position when no pressure is applied. Furthermore, an elastic framework 23 with a three-dimensional mesh structure, woven from air fibers, can be provided within the airbag 6 to provide better support for the inner wall of the airbag 6, preventing the return spring 22 from being suspended in the air and causing localized stress. This prevents the wearer from experiencing a noticeable discomfort when stepping on the airbag 6 (which would be caused by the stiff return spring 22). Furthermore, the airbag 6 can be constructed as an assembled structure, making it easier to implement and manufacture. The details are as follows: the airbag 6 includes an upper bladder body 12 and a bottom cover 13. The rear end of the bottom of the sole 11 is provided with an inner recess 14. The airbag 6 is installed in the inner recess 14 and the upper bladder body 12 is of a shape equivalent to that of the inner recess 14 (the outline of the upper bladder body 12 can also be adapted to the inner cavity shape of the inner recess 14) and are connected as one. The upper wall of the inner recess 14 can also be directly used as the upper bladder body 12. The bottom cover 13 includes a bottom wall 13a and a U-shaped side wall 13b. The U-shaped side wall 13b is provided with an inwardly protruding limiting portion 13c at a position lower than its top end. The length of the bottom wall 13a is greater than the length of the inner recess 14. The upper bladder body 12, the U-shaped side wall 13b, and the bottom wall 13a are connected to each other and surround the inner cavity of the airbag 6, and the limiting portion 13c is against the upper wall of the inner recess 14. The bottom wall 13a and the U-shaped side wall 13b are both fixedly connected to the outer wall of the sole 11, and they can be fixed together by bonding. The limiting portion 13c can form an L-shaped structure with the upper end of the U-shaped side wall 13b, which supports the upper wall of the inner recess 14. When the sole 11 is compressed downward by pressing force, it can reduce the relative sliding between the outer wall of the sole 11 and the U-shaped side wall 13b, prevent the U-shaped side wall 13b from falling off the side wall of the sole 11, and thus improve its durability.

[0059] Example 4

[0060] like Figure 5 、 6 As shown, this embodiment provides a ventilation insole, which includes the ventilation mechanism of Example 2. The ventilation mechanism is disposed inside the insole 10, and the air inlet pipe 7 and the air outlet pipe 8 are both connected to the outside of the insole 10 and are staggered. It should be noted that the principle of the ventilation mechanism disposed in the insole 10 is the same as that of Example 3 and will not be repeated here.

[0061] In this embodiment, the replaceable insole 10 in the shoe provides a wider range of applications and greater adaptability. The insole 10 has an exhaust hole 18 on its upper surface. An exhaust pipe 8 connects to the exhaust hole 18 via a connecting channel 19 provided in the insole 10, thereby blowing air upward through the exhaust hole 18 to the foot. The insole 10 also has an intake pipe 7 connected to the rear of the insole 10 for drawing in external air. The insole 10 may include an upper pad 20 and a lower pad 21, which fit together, with a ventilation mechanism sandwiched between the upper and lower pads 20 and 21.

[0062] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has disclosed the preferred embodiments as above, it is not intended to limit the product form and style of the present invention. Any technician familiar with this profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, all contents that do not depart from the technical solution of the present invention fall within the patent scope of the technical solution of the present invention.

Claims

1. A one-way valve, characterized in that: It comprises a valve body (1), wherein the air inlet end of the valve body (1) is provided with an air inlet hole (2), the air outlet end of the valve body (1) is provided with a flat mouth (3), the air outlet end of the flat mouth (3) is provided with a flow guide (5), and a gap is left between the flow guide (5) and the flat mouth (3); The air entering through the air inlet (2) can flow to the other end of the one-way valve through the gap between the valve body (1), the flat mouth (3), the flow guide (5) and the flat mouth (3); and when the airflow flows in the reverse direction, the air flowing directly toward the flat mouth (3) can be diverted to both sides of the flat mouth (3) under the action of the flow guide (5), so that the flat mouth (3) is closed by the pressure of the airflow; The flat mouth (3) comprises fitting portions (3a) on upper and lower sides and connecting portions (3b) on left and right sides, the fitting portions (3a) and the connecting portions (3b) being connected as one body, and the fitting portions (3a) can fit together inwards when subjected to airflow pressure, thereby closing the flat mouth (3); An outward-expanding protrusion (3a1) is provided in the middle of the fitting portion (3a), and the protrusion (3a1) is used to pull the two ends of the fitting portion (3a) to limit the vibration generated when the fitting portion (3a) is subjected to air flow fluctuations; The one-way valve further comprises a valve housing (4), the valve body (1) being mounted in the valve housing (4), two sides of the flow guide member (5) being fixed to the inner wall of the valve housing (4), and a gap being left between the other two sides and the inner wall of the valve housing (4); The valve housing (4) is provided with a blocking portion (4a) for blocking the airflow from flowing toward the rear of the flat mouth (3).

2. The one-way valve according to claim 1, characterized in that: The side wall of the flow guide (5) extends toward the flat mouth (3) and passes over the air outlet end of the flat mouth (3), thereby covering the air outlet end of the flat mouth (3).

3. A ventilation mechanism, characterized in that: The air bag (6) is provided with an air inlet pipe (7) and an air outlet pipe (8), the air outlet pipe (8) is provided with a one-way air outlet valve (9), and the air inlet pipe (7) is provided with the one-way valve according to claim 1 or 2.

4. A ventilation insole, characterized by: The invention comprises the ventilation mechanism according to claim 3, wherein the ventilation mechanism is arranged inside the insole (10), and the air inlet pipe (7) and the air outlet pipe (8) are both connected to the outside of the insole (10) and are staggered.

5. A ventilation sole, characterized in that: The invention comprises the ventilation mechanism according to claim 3, wherein the ventilation mechanism is arranged inside the sole (11), and the air inlet pipe (7) and the air outlet pipe (8) are both connected to the outside of the sole (11) and are staggered.

6. The ventilation sole according to claim 5, characterized in that: The airbag (6) comprises an upper bladder body (12) and a bottom cover (13); a concave portion (14) is provided at the rear end of the bottom of the sole (11); the airbag (6) is installed in the concave portion (14); the upper bladder body (12) and the concave portion (14) are of similar shape and connected as a whole; the bottom cover (13) comprises a bottom wall (13a) and a U-shaped side wall (13b); the U-shaped side wall (13b) is provided with an inwardly protruding limiting portion (13c) at a position slightly below the top end thereof; the length of the bottom wall (13a) is greater than the length of the concave portion (14); the upper bladder body (12), the U-shaped side wall (13b), and the bottom wall (13a) are connected to each other and surround an inner cavity forming the airbag (6); the limiting portion (13c) abuts against the upper wall of the concave portion (14); the bottom wall (13a) and the U-shaped side wall (13b) are both fixedly connected to the outer wall of the sole (11).

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