Novel noise reduction one-way valve

Abstract

The utility model relates to a novel noise reduction one-way valve which comprises a valve sleeve. The valve element is movably installed in the valve sleeve in the axis direction of the valve sleeve. The elastic element is provided with a suspended movable end, and when the elastic element is not compressed, the movable end extends to the outer position of the valve element; when the valve element moves in the axial direction of the valve sleeve in the process from valve closing to valve opening, the movable end of the elastic element can firstly make contact with the end wall position of the valve sleeve, and the elastic element is gradually compressed; the one-way valve is reasonable in design structure, in the opening process of the one-way valve, the elastic element can move along with the movement of the valve element, the movable end of the elastic element is located outside the valve element and can make contact with the end wall position of the valve sleeve firstly, the speed reduction and buffering effects on the valve element are achieved, and the safety of the one-way valve is improved. Therefore, the valve element can be prevented from violently impacting the valve sleeve after being opened, and the noise is prevented from being too large.

Description

Technical Field

[0001] The present application relates to the technical field of one-way valves, and in particular to a novel noise-reducing one-way valve. Background Art

[0002] A one-way valve is a fluid control valve that allows fluid to flow in one direction while preventing it from flowing in the opposite direction. This type of valve is commonly used in piping systems to ensure that fluid flows in only one direction to prevent backflow or reverse flow. Currently, one-way valves are noisy and easily damaged during use. The main reason is that when the one-way valve switches from closed to open, the valve core moves rapidly under the action of the fluid, causing the end of the valve core to collide violently with the inner wall end of the valve sleeve, resulting in noise during use. This can also cause accelerated damage to the valve core or valve sleeve after long-term use, affecting the service life of the one-way valve. In addition, when the system pressure is unstable, the valve core will also move inside the one-way valve in the open state, which will also generate noise, giving users a bad user experience. Utility Model Content

[0003] In order to solve the problems of high noise and easy damage of the existing one-way valve during use raised in the above background technology, the present application provides a new noise-reducing one-way valve.

[0004] The novel noise reduction one-way valve provided in this application adopts the following technical solution:

[0005] A new noise reduction one-way valve, comprising:

[0006] valve sleeve;

[0007] The valve core is movably installed in the valve sleeve along the axis of the valve sleeve;

[0008] an elastic element having a movable end in a suspended state, wherein the movable end extends to an outer position of the valve core when the elastic element is not compressed;

[0009] When the valve core moves from closing the valve to opening the valve, the valve core moves along the axial direction of the valve sleeve, and the movable end of the elastic element can first contact the end wall position of the valve sleeve, so that the elastic element is gradually compressed.

[0010] By adopting the above technical solution, during the opening process of the one-way valve, the elastic element can move with the movement of the valve core, and since the movable end of the elastic element is located outside the valve core, it can first contact the end wall position of the valve sleeve, thereby reducing the speed and buffering the valve core, thereby avoiding the valve core from violently colliding with the valve sleeve after opening, and preventing excessive noise.

[0011] Optionally, the valve seat has a valve port therein, the valve sleeve is coaxially connected to the end position of the valve seat, and the valve core can contact the valve port when moving to disconnect the internal passage of the one-way valve;

[0012] The valve body is fixed in the valve seat.

[0013] By adopting the above technical solution, the valve seat, valve body, valve core and elastic element are integrally combined to form a one-way valve structure, and the on-off effect of the one-way valve is controlled by the movement of the valve core.

[0014] Optionally, the valve core is a cup-shaped structure, and has a tapered portion at one end close to the cup bottom, and the size of the tapered portion gradually decreases from the middle of the valve core to the cup bottom.

[0015] The above technical solution is adopted mainly to enable the tapered portion to be positioned at the valve port of the valve seat to realize the on-off switching of the valve port. In addition, after the valve core is opened, the tapered portion of the valve core can facilitate the fluid to pass through the first liquid hole of the valve sleeve to realize the rapid flow of the fluid.

[0016] Optionally, the other end of the elastic element away from the movable end is a limiting end, and the limiting end of the elastic element extends to the inner cavity of the cup-shaped valve core.

[0017] By adopting the above technical solution, the limiting end of the elastic element is placed inside the cup-shaped valve core to reduce the overall length of the valve core and the elastic element after assembly, making the overall structure compact, and the limiting end can be used to achieve the end limiting effect of the elastic element.

[0018] Optionally, the inner wall of the valve core has a convex ring extending toward the center thereof, and the end face of the convex ring is fixedly connected to the limiting end of the elastic element.

[0019] By adopting the above technical solution, the limiting end of the valve core can be fixed to the end face of the convex ring by welding, which has the advantage of a stronger connection between the two.

[0020] Optionally, the elastic element is a spring.

[0021] By adopting the above technical solution, the advantages of low cost, easier acquisition and good elastic effect are achieved.

[0022] Optionally, when the one-way valve is in a closed state, there is a gap between the movable end of the elastic element and the end wall of the valve sleeve.

[0023] By adopting the above technical solution, the problem of excessive resistance to valve core movement caused by the movable end contacting the end wall of the valve sleeve when the valve is opened is avoided.

[0024] Optionally, a first liquid hole is opened in the circumferential direction of the valve sleeve.

[0025] By adopting the above technical solution, the fluid is mainly used to flow forward from the first liquid hole in the valve open state.

[0026] Optionally, a second liquid hole is formed at the end of the valve sleeve.

[0027] By adopting the above technical solution, the problem of local high pressure in the cavity formed by the valve core and the valve sleeve is avoided, and adverse effects on the movement of the valve core are prevented.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] The utility model has a reasonable design structure. During the opening process of the one-way valve, the elastic element can move with the movement of the valve core. Since the movable end of the elastic element is located outside the valve core, it can first contact the end wall of the valve sleeve, which has the effect of slowing down and buffering the valve core, thereby avoiding the valve core from colliding violently with the valve sleeve after opening, and preventing excessive noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of the utility model in the valve-opening state;

[0031] Figure 2 This is a structural diagram of the utility model in the valve closing state;

[0032] Figure 3 This is a structural diagram of the connection between the valve sleeve, valve core and elastic element of the utility model.

[0033] Description of reference numerals:

[0034] 1. Valve seat;

[0035] 2. Valve body;

[0036] 3. Valve core; 301. Conical portion; 302. Protruding ring;

[0037] 4. Valve sleeve; 401. First liquid hole; 402. Second liquid hole;

[0038] 5. Elastic element; 501. Limiting end; 502. Movable end. DETAILED DESCRIPTION

[0039] The present application is further described in detail below with reference to the accompanying drawings.

[0040] like Figure 1-3 As shown, the embodiment of the present application discloses a novel noise reduction one-way valve, comprising:

[0041] Valve sleeve 4;

[0042] The valve core 3 is movably installed in the valve sleeve 4 along the axial direction of the valve sleeve 4;

[0043] The elastic element 5 has a suspended movable end 502 , wherein the movable end 502 extends to an outer position of the valve core 3 when the elastic element 5 is not compressed;

[0044] The valve seat 1 has a valve port inside. The valve sleeve 4 is coaxially connected to the end of the valve seat 1. The valve core 3 can contact the valve port during movement to disconnect the internal passage of the one-way valve. After the valve core 3 moves away from the valve port, the internal passage of the one-way valve is connected, and fluid can flow inside the one-way valve.

[0045] The valve body 2, the valve seat 1 is fixed in the valve body 2, and the fixed connection between the two can be achieved by welding;

[0046] When the valve core 3 moves from closing the valve to opening the valve, the valve core 3 moves along the axial direction of the valve sleeve 4, and the movable end 502 of the elastic element 5 can first contact the end wall position of the valve sleeve 4, so that the elastic element 5 is gradually compressed.

[0047] Specifically, the valve core 3 is a cup-shaped structure, and has a tapered portion 301 at one end close to the cup bottom. The size of the tapered portion 301 gradually decreases from the middle of the valve core 3 to the cup bottom.

[0048] Specifically, the other end of the elastic element 5 away from the movable end 501 is a limiting end 501, and the limiting end 501 of the elastic element 5 extends into the inner cavity of the cup-shaped valve core 3. That is, the limiting end 501 can achieve the limiting effect of the elastic element 5, and the limiting end 501 can be installed in the valve core 3 in a fixed or non-fixed manner.

[0049] In this example, the inner wall of the valve core 3 has a convex ring 302 extending toward its center, and the end face of the convex ring 302 is fixedly connected to the limiting end 501 of the elastic element 5. In this example, the elastic element 5 is a spring, and the limiting end 501 of the spring is welded to the convex ring 302.

[0050] Specifically, when the one-way valve is in the closed state, there is a gap between the movable end 502 of the elastic element 5 and the end wall of the valve sleeve 4. In the initial stage of opening the valve, the valve core 3 moves away from the valve port, and the elastic element 5 does not contact the end wall of the valve sleeve 4 to limit the movement of the valve core 3.

[0051] Specifically, the valve sleeve 4 is provided with first liquid holes 401 in the circumferential direction. In this example, there are three first liquid holes 401 , which are evenly distributed around the center line of the valve sleeve 4 .

[0052] Specifically, a second liquid hole 402 is formed at the end of the valve sleeve 4 .

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A new type of noise reduction one-way valve, characterized in that: include: Valve sleeve (4); A valve core (3) is movably mounted in the valve sleeve (4) along the axis of the valve sleeve (4); An elastic element (5) having a suspended movable end (502), wherein when the elastic element (5) is not compressed, the movable end (502) extends to an external position of the valve core (3); When the valve core (3) moves from closing the valve to opening the valve, the valve core (3) moves along the axial direction of the valve sleeve (4), and the movable end (502) of the elastic element (5) can first contact the end wall position of the valve sleeve (4), so that the elastic element (5) is gradually compressed.

2. A novel noise reduction one-way valve according to claim 1, characterized in that: Also includes: A valve seat (1) having a valve port therein, the valve sleeve (4) being coaxially connected to an end portion of the valve seat (1), and the valve core (3) being able to contact the valve port during movement to disconnect the internal passage of the one-way valve; A valve body (2), wherein the valve seat (1) is fixed in the valve body (2).

3. A novel noise reduction one-way valve according to claim 1, characterized in that: The valve core (3) is a cup-shaped structure, and has a tapered portion (301) at one end thereof close to the cup bottom. The size of the tapered portion (301) gradually decreases from the middle of the valve core (3) to the cup bottom.

4. A novel noise reduction one-way valve according to claim 3, characterized in that: The other end of the elastic element (5) away from the movable end (502) is a limiting end (501), and the limiting end (501) of the elastic element (5) extends to the inner cavity of the cup-shaped valve core (3).

5. A novel noise reduction one-way valve according to claim 4, characterized in that: The inner wall of the valve core (3) is provided with a convex ring (302) extending toward the center thereof, and the end surface of the convex ring (302) is fixedly connected to the limiting end (501) of the elastic element (5).

6. A novel noise reduction one-way valve according to claim 1, characterized in that: The elastic element (5) is a spring.

7. The novel noise reduction one-way valve according to claim 1 is characterized in that: When the one-way valve is in a closed state, there is a gap between the movable end (502) of the elastic element (5) and the end wall of the valve sleeve (4).

8. The novel noise reduction one-way valve according to claim 1 is characterized in that: The valve sleeve (4) is provided with a first liquid passage hole (401) in the circumferential direction.

9. The novel noise reduction one-way valve according to claim 2 is characterized in that: A second liquid passage hole (402) is provided at the end of the valve sleeve (4).

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