A one-way valve for use in a down jacket
By installing a one-way valve on the down jacket, the high-elasticity diaphragm deforms during movement to expel hot and moist air, and seals off cold air when stationary, thus solving the problem of air venting during movement and achieving convenient changing and warmth retention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ERAL DOWN PRODS
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-03
AI Technical Summary
Existing down jackets have difficulty effectively expelling heat and moisture during strenuous exercise, resulting in a stuffy and damp feeling for the wearer. Furthermore, when the fabric has good breathability, cold air from the outside can easily enter, affecting the warmth retention.
Design a one-way valve for down jackets, comprising a valve body, an inner seat, and a highly elastic diaphragm. It is easy to replace via a snap-fit assembly. The inner seat has an exhaust port and an outlet port. The highly elastic diaphragm deforms during movement to expel hot and humid air, and closes to prevent cold air from entering when stationary.
It effectively expels heat and moisture during exercise, locks in warmth when stationary, and allows for easy replacement of the one-way valve if damaged, without requiring disassembly of the down jacket, thus improving both wearing comfort and warmth.
Smart Images

Figure CN224440487U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of one-way valve technology, and in particular to a one-way valve for breathability in down jackets. Background Technology
[0002] A check valve is a type of valve that allows fluid to flow freely in one direction while blocking flow in the opposite direction. It is typically used to prevent fluid backflow and protect system equipment from the effects of reverse flow.
[0003] In most current down jacket designs, there are many shortcomings in achieving breathability. The breathability of ordinary down jacket fabrics is relatively fixed. When the wearer engages in strenuous exercise, the body generates a lot of heat and moisture. Due to the lack of an effective breathability mechanism, it is difficult to expel heat and moisture in time by relying solely on the breathability of the fabric itself, causing the wearer to feel stuffy and damp, which seriously affects the wearing comfort. On the other hand, if the fabric has good breathability and can easily expel moisture and heat, then cold air from the outside will also enter the body, affecting the warmth retention.
[0004] To address this, a one-way valve for breathability in down jackets is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a one-way valve for breathability in down jackets, 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 one-way valve for ventilation of down jackets, wherein the one-way valve is installed on the down jacket and is used to expel moisture and heat from the down jacket. The one-way valve includes a valve body, an inner seat on the valve body, and a highly elastic diaphragm in the inner seat. A snap-fit assembly is provided between the valve body and the inner seat to facilitate quick replacement of the inner seat. The snap-fit assembly includes an elastic hook fixedly connected to the inner seat. The valve body has a disassembly port and a hook port for connecting with the elastic hook.
[0007] Preferably, the valve body has a built-in platform, and the inner seat is located in the built-in platform.
[0008] Preferably, the inner seat has a hollow platform and an exhaust port, and a high-elasticity diaphragm is located in the hollow platform and corresponds to the exhaust port. The arc edge of the high-elasticity diaphragm is fixedly connected to the inner seat.
[0009] Preferably, the inner seat has an air outlet, which corresponds to the highly elastic diaphragm.
[0010] Preferably, an mounting plate (13) is fixedly connected to the inner seat (4), and a blocking post (14) for limiting the high elastic diaphragm (5) is fixedly connected to the mounting plate (13).
[0011] Preferably, an outer cover (15) is fixedly connected to the inner seat (4), and the outer cover (15) has a plurality of openings (16) for venting air outward.
[0012] The beneficial effects of this utility model are:
[0013] This invention incorporates a one-way valve on a down jacket, allowing for flexible adjustment of its installation position. When the wearer is exercising, the heat and moisture in the body can compress a highly elastic diaphragm, causing the diaphragm to deform and lift upwards, thus facilitating the outward discharge of heat and moisture. Compared to relying solely on the fabric itself for heat dissipation, the one-way valve provides better heat dissipation. Furthermore, when exercise stops, the internal heat cannot be dissipated, thus locking in the temperature and preventing external cold air from entering.
[0014] This invention features a snap-fit assembly that allows the inner seat to be easily removed and replaced when the internal structure of the one-way valve is damaged. This is achieved by prying open the elastic hook to disengage it from the hook opening. Alternatively, the internal structure of the one-way valve can be replaced by pressing the elastic hook, causing the inner seat to enter the built-in platform. The elastic hook, under its own elasticity, engages with the hook opening, thus completing the connection between the inner seat and the valve body. Replacement is simple and convenient; when the internal structure of the one-way valve is damaged, it can be replaced without disassembling the one-way valve from the down jacket. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of a one-way valve for breathability in down jackets, according to an embodiment of the present invention.
[0017] Figure 2 This is a schematic diagram of the outer cover structure of a one-way valve for breathability in down jackets, according to an embodiment of the present invention.
[0018] Figure 3 This is a schematic diagram of the inner seat structure of a one-way valve for breathability in down jackets, according to an embodiment of the present invention.
[0019] Figure 4 This is a cross-sectional view of the outer cover of a one-way valve for breathability in down jackets, according to an embodiment of the present invention.
[0020] Figure 5 This is a schematic cross-sectional view of the inner seat of a one-way valve for breathability in down jackets, according to an embodiment of the present invention.
[0021] Figure 6 This is a schematic diagram of the valve body structure of a one-way valve for breathability in down jackets, according to an embodiment of the present invention.
[0022] The following are labeled in the diagram: 1. One-way valve; 2. Down jacket; 3. Valve body; 4. Inner seat; 5. High-elasticity diaphragm; 6. Elastic hook; 7. Disassembly port; 8. Hook port; 9. Built-in platform; 10. Hollow platform; 11. Exhaust vent; 12. Air outlet; 13. Mounting plate; 14. Baffle post; 15. Outer cover; 16. Notch. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] like Figures 1 to 6As shown, a specific embodiment of this utility model provides a one-way valve for ventilation of down jackets. The one-way valve 1 is installed on the down jacket 2. The one-way valve 1 is used to expel moisture and heat from the down jacket 2. The one-way valve 1, located on the down jacket 2, allows a large amount of heat and moisture generated in the wearer's body to be expelled during strenuous exercise, thus maintaining wearing comfort. The connection method between the one-way valve 1 and the down jacket 2 is existing technology and will not be described in detail here. The one-way valve 1 includes a valve body 3, with an inner seat 4 on the valve body 3. A highly elastic membrane is provided in the inner seat 4. Piece 5; A snap-fit assembly is provided between the valve body 3 and the inner seat 4 to facilitate quick replacement of the inner seat 4. By setting the snap-fit assembly, when the one-way valve 1 is used on the down jacket 2 for a long time and the one-way valve 1 is damaged, such as the high elastic diaphragm 5 losing its elasticity, it can be replaced without separating the entire one-way valve 1 from the down jacket 2. The snap-fit assembly includes an elastic hook 6 fixedly connected to the inner seat 4. The valve body 3 has a disassembly port 7 and a hook port 8 for connecting with the elastic hook 6.
[0026] like Figures 1 to 6 As shown, specifically, the valve body 3 has an internal platform 9, and the inner seat 4 is located in the internal platform 9. The inner seat 4 has a hollow platform 10, and an exhaust port 11 is provided on the inner seat 4. The high-elasticity diaphragm 5 is located in the hollow platform 10, and the high-elasticity diaphragm 5 corresponds to the exhaust port 11. The arc edge of the high-elasticity diaphragm 5 is fixedly connected to the inner seat 4. When wearing the down jacket 2 and engaging in vigorous exercise, due to the large range of arm movements, the air inside the down jacket 2 is compressed, enhancing its fluidity. The compressed hot and humid air reaches the bottom of the high-elasticity diaphragm 5 through the exhaust port 11 on the inner seat 4, and the hot and humid air can compress the high-elasticity diaphragm 5. Because the high-elasticity diaphragm 5 itself has very high elasticity... The high-elasticity diaphragm 5 has a strong deformation capacity, allowing it to deform under the pressure of hot and humid air. One end of the diaphragm 5 is lifted upwards, creating an interconnected connection between the exhaust vent 11 and the hollow platform 10. Hot and humid air can enter the hollow platform 10 through the exhaust vent 11. An installation plate 13 is fixedly connected to the inner seat 4, and a blocking post 14 for limiting the movement of the high-elasticity diaphragm 5 is fixedly connected to the installation plate 13. When the high-elasticity diaphragm 5 deforms and lifts upwards, the blocking post 14 on the top installation plate 13 blocks the high-elasticity diaphragm 5, preventing excessive deformation during long-term deformation and loss of deformation recovery ability, thereby increasing its service life.
[0027] like Figures 1 to 6As shown, specifically, an air outlet 12 is provided in the inner seat 4, corresponding to the high-elasticity diaphragm 5. An outer cover 15 is fixedly connected to the inner seat 4, and the outer cover 15 has several openings 16 for exhausting air. In the above process, hot and humid air enters the hollow platform 10 and is discharged upward through the air outlet 12, thus entering the outer cover 15 and gradually being discharged outward through the openings 16 on the outer cover 15. That is, the hot and humid air generated in the body is discharged outward. When not exercising, the body... The hot air inside cannot be compressed, thus preventing the high-elasticity diaphragm 5 from deforming and preventing the hot air from escaping. This effectively locks in the temperature and prevents heat loss. Simultaneously, cold air from the outside, after entering the inner seat 4, is also prevented from entering the down jacket 2 by the high-elasticity diaphragm 5. If the one-way valve 1 is damaged, such as by the high-elasticity diaphragm 5 affecting its operation, a tool such as a small screwdriver can be inserted into the disassembly port 7 to pry open the elastic hook 6, allowing the... The elastic hook 6, which has the ability to deform, is pried open and gradually detaches from the hook opening 8. At the same time, after the elastic hook 6 detaches from the hook opening 8, the inner seat 4 can be lifted up and pried out, so that the inner seat 4 can be removed from the inner platform 9, and then a new inner seat 4 can be replaced. This achieves the replacement of internal structures such as the high-elasticity diaphragm 5. During installation, the new inner seat 4 is gradually installed into the inner platform 9. During the installation process, the elastic hook 6 is squeezed by fingers, so that it deforms under force to facilitate its entry into the inner platform 9. After the inner seat 4 is gradually installed into the inner platform 9, when the elastic hook 6 moves to the hook opening 8, the elastic hook 6 can automatically reset under its own elasticity, so as to lock into the hook opening 8 and complete the locking. This completes the connection between the inner seat 4 and the valve body 3. This allows the replacement of the internal structure of the one-way valve 1 without disassembling the one-way valve 1 from the down jacket 2. It is simple and quick. The entire one-way valve 1 can also be set in the armpit position of the down jacket 2. The installation position can be flexibly adjusted, so as to facilitate the exhaust and heat dissipation of the inside of the down jacket 2.
[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0029] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A one-way valve for breathability in down jackets, characterized in that, The one-way valve (1) is installed on the down jacket (2) and is used to discharge moisture and heat from the down jacket (2). The one-way valve (1) includes a valve body (3) and an inner seat (4) is provided on the valve body (3). A highly elastic diaphragm (5) is provided in the inner seat (4). A snap-fit assembly is provided between the valve body (3) and the inner seat (4) to facilitate quick replacement of the inner seat (4). The snap-fit assembly includes an elastic hook (6) fixedly connected to the inner seat (4). The valve body (3) has a disassembly port (7) and a hook port (8) for connecting with the elastic hook (6).
2. A one-way valve for use in a down jacket according to claim 1, wherein, The valve body (3) has an internal platform (9) and the inner seat (4) is located in the internal platform (9).
3. A one-way valve for use in a down jacket according to claim 1, wherein, A hollow platform (10) is provided in the inner seat (4), and an exhaust port (11) is provided on the inner seat (4). A high-elasticity diaphragm (5) is located in the hollow platform (10), and the high-elasticity diaphragm (5) corresponds to the exhaust port (11). The arc edge of the high-elasticity diaphragm (5) is fixedly connected to the inner seat (4).
4. A one-way valve for use in a down jacket according to claim 1, wherein, An air outlet (12) is provided in the inner seat (4), and the air outlet (12) corresponds to the high elastic diaphragm (5).
5. A one-way valve for breathability in down jackets according to claim 1, characterized in that, An mounting plate (13) is fixedly connected to the inner seat (4), and a blocking post (14) for limiting the high elastic diaphragm (5) is fixedly connected to the mounting plate (13).
6. A one-way valve for use in a down-filled garment according to claim 1, wherein, An outer cover (15) is fixedly connected to the inner seat (4), and the outer cover (15) has several openings (16) for venting air outward.