One-way flow control valve

Abstract

The utility model discloses a one-way flow control valve which comprises a main valve seat, a valve cavity, a spring and a ball, the valve cavity is arranged in the valve seat, the spring comprises a cylindrical part and a circular truncated cone part which are connected, the circular truncated cone part is located above the cylindrical part, the cylindrical part is borne in the valve cavity, and the ball is arranged in the valve cavity. The round ball is contained in the circular truncated cone part and abuts against the inner wall of the valve cavity. The ball is contained in the circular truncated cone portion of the spring and keeps moving stably, the spring exerts upward pressure on the ball, the ball tightly abuts against the inner wall of the valve cavity, and therefore the channel is closed to prevent fluid from flowing back. When the fluid countercurrent pressure is too large, the pressure overcomes the spring force to push the ball to move downwards, and the valve is opened to allow the fluid to pass through; compared with the prior art, not only is the number of parts reduced, but also the contact between the spring and the ball is more stable when the valve works in a high-pressure environment, and the fault risk caused by looseness or damage of the parts is reduced, so that the overall reliability and durability of the valve are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of angle valve devices, in particular to a one-way flow control valve. Background Art

[0002] One-way flow control valve is an indispensable key component in hydraulic system. Its main function is to ensure that the fluid can flow smoothly in one direction, while preventing or limiting the reverse flow of the fluid. It is widely used in various hydraulic pipelines to prevent pressure backflow, maintain the working pressure of the system or control the system flow, thereby ensuring the normal operation and safety of machinery and equipment.

[0003] In order to achieve stable contact between the ball and the spring, a traditional one-way flow control valve usually needs to introduce a connector that can keep the ball moving in the correct position and always maintain effective contact with the spring, thereby responding to pressure changes in the hydraulic system and allowing or preventing the flow of fluid.

[0004] However, when the pressure in the hydraulic system is too high, the high-pressure environment places higher requirements on the material strength and structural stability of the connectors. The above connectors may be damaged or even ruptured, and the damaged connectors will cause the valve to fail, which not only reduces the reliability and service life of the valve itself, but may also cause more serious consequences, such as the system pressure out of control, resulting in a threat to the safe and stable operation of the entire hydraulic system. It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0005] In view of the above-mentioned deficiencies of the prior art, the purpose of the present utility model is to provide a one-way flow control valve for solving the problem of excessive parts and low safety of the one-way flow control valve in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a one-way flow control valve, including a main valve seat, a valve cavity, a spring and a ball, the valve seat is provided with the valve cavity, the spring includes a connected cylindrical portion and a frustum portion, the frustum portion is located above the cylindrical portion, the cylindrical portion is supported in the valve cavity, the frustum portion contains the ball, and the ball is abutted against the inner wall of the valve cavity.

[0007] In one embodiment of the utility model, it also includes a liquid inlet channel and a liquid outlet channel, the top of the valve cavity is connected to the liquid outlet channel, the liquid inlet channel is connected to the side wall of the valve cavity, and the ball is located above the connection between the liquid inlet channel and the valve cavity.

[0008] The beneficial effects of the above embodiments are as follows: the arrangement of the liquid inlet channel and the liquid outlet channel optimizes the flow path of the fluid in the valve, allowing the fluid to pass more smoothly during forward flow, reducing pressure loss and flow rate restriction, and improving the flow performance of the valve.

[0009] In one embodiment of the utility model, it also includes a valve core seat and a valve core body, the valve core seat is fixed on the main valve seat, the valve core body is movably arranged in the valve core seat, and the free end of the valve core body is located in the liquid inlet channel.

[0010] The beneficial effects of the above embodiments are as follows: the valve core seat and the valve core body provide precise control for the flow of fluid through the liquid inlet channel, enhance the adjustment capability and flexibility of the valve, and can meet the specific requirements under different working conditions.

[0011] In an embodiment of the present invention, a first sealing member is disposed between the valve core seat and the main valve seat.

[0012] The beneficial effect of the above embodiment is that the first sealing member is used to improve the sealing between the valve core seat and the main valve seat, prevent leakage, and ensure the reliability and safety of the valve under high pressure.

[0013] In one embodiment of the present invention, a rotating handle is further included, and the rotating handle can be detachably mounted on the valve core body.

[0014] In one embodiment of the utility model, a spring nut is further included. The bottom of the valve cavity is threadedly connected with the spring nut, and the spring is compressed in the spring nut.

[0015] The beneficial effect of the above embodiment is that the spring nut is used to adjust and maintain the compression amount of the spring, so that the opening pressure of the valve can be accurately controlled to adapt to different working pressure requirements.

[0016] In an embodiment of the present invention, a second sealing member is provided at the connection between the spring nut and the valve chamber.

[0017] The beneficial effect of the above embodiment is that the second sealing member further enhances the sealing performance of the connection between the spring nut and the valve chamber, prevents fluid leakage caused by pressure fluctuations, and ensures the stability of the valve under extreme working conditions.

[0018] In an embodiment of the present invention, the round ball is a steel ball.

[0019] The beneficial effect of the above embodiment is that the steel ball has the advantages of high hardness and good wear resistance, so that the valve can maintain a long service life and stable performance even under the action of long-term high-speed flow of fluid.

[0020] As described above, the one-way flow control valve of the utility model has the following beneficial effects: the ball is accommodated in the conical part of the spring and maintains stable movement, and the spring applies upward pressure to the ball, so that the ball is tightly against the inner wall of the valve cavity, thereby closing the channel to prevent fluid backflow; when the backflow pressure of the fluid is too large, the pressure overcomes the spring force, pushing the ball downward, and the valve opens to allow the fluid to pass; not only the number of parts is reduced, but also when working in a high-pressure environment, the contact between the spring and the ball is more stable, reducing the risk of failure due to loose or damaged components, thereby improving the overall reliability and durability of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of a one-way flow control valve provided by the utility model;

[0023] Figure 2 This is a partial structural schematic diagram of the one-way flow control valve provided by the utility model.

[0024] Component number description

[0025] 1 Main valve seat 8 Liquid inlet channel

[0026] 2 Valve chamber 9 Valve core seat

[0027] 3 Spring 10 Valve core body

[0028] 4 Ball 11 First seal

[0029] 5 Cylindrical part 12 Rotating handle

[0030] 6 Cone 13 Spring nut

[0031] 7 Liquid outlet channel 14 Second sealing member DETAILED DESCRIPTION

[0032] The utility model provides a one-way flow control valve. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail below with reference to the accompanying drawings and embodiments.

[0033] In the description of the present invention, it should be understood that the terms "up, down, left, right, etc." indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and should not be understood as limiting the present invention; in addition, the terms "installation" and "connection" should be understood in a broad sense, and those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0034] See also Figure 1 and Figure 2 The utility model provides a one-way flow control valve, comprising a main valve seat 1, a valve cavity 2, a spring 3 and a ball. The valve cavity 2 is provided inside the valve seat, and the spring 3 is composed of a cylindrical portion 5 and a frustum portion 6 connected to each other, wherein the frustum portion 6 is located above the cylindrical portion 5, the cylindrical portion 5 is supported in the valve cavity 2, and the frustum portion 6 is provided with the ball, and the ball contacts the inner wall of the valve cavity 2.

[0035] In this embodiment, it also includes a liquid inlet channel 8 and a liquid outlet channel 7. The top of the valve cavity 2 is connected to the liquid outlet channel 7. The liquid inlet channel 8 is connected to the side wall of the valve cavity 2. The ball 4 is located above the connection between the liquid inlet channel 8 and the valve cavity 2. It can be understood that the liquid inlet channel 8 and the liquid outlet channel 7 optimize the flow path of the fluid in the valve, allowing the forward flowing fluid to pass smoothly, reducing pressure loss and speed limitation, thereby improving the flow performance of the valve.

[0036] See also Figure 1 The one-way flow control valve also includes a valve core seat 9 and a valve core body 10. The valve core seat 9 is fixed on the main valve seat 1, and the valve core body 10 is movably arranged in the valve core seat 9. The free end of the valve core body 10 is located in the liquid outlet channel 7. The valve core body 10 moves in the liquid inlet channel 8 to accurately control the fluid passing through the liquid inlet channel 8, thereby enhancing the adjustment ability and flexibility of the valve.

[0037] In order to enhance the sealing between the valve core seat 9 and the main valve seat 1 and prevent leakage, a first sealing member 11 is provided between the valve core seat 9 and the main valve seat 1 to ensure the reliability and safety of the valve under high pressure. Optionally, a sealing assembly is also provided on the valve core body 10, and the sealing assembly is made of Teflon. In addition, a rotating handle 12 detachably mounted on the valve core body 10 is also included to provide convenient operation for users.

[0038] The bottom of the valve cavity 2 is threadedly connected with a spring nut 13, which is used to adjust and maintain the compression of the spring 3, so as to accurately control the opening pressure of the valve to adapt to different working pressure requirements. A second seal 14 is provided at the connection between the spring nut 13 and the valve cavity 2. The second seal 14 enhances the sealing performance, can prevent fluid leakage caused by pressure fluctuations, and ensure the stability of the valve under extreme working conditions. Optionally, the first seal 11 and the second seal 14 are of the same model for easy installation and maintenance.

[0039] Preferably, the round ball is a steel ball, which has high hardness and good wear resistance, so that the valve can maintain a long service life and stable performance even under the action of long-term high-speed flow of fluid.

[0040] The working principle of the one-way flow control valve in this embodiment is as follows: the spring 3 is composed of a cylindrical portion 5 and a truncated cone portion 6, wherein the cylindrical portion 5 is carried in the valve cavity 2, and the truncated cone portion 6 is located above the cylindrical portion 5 and a ball is placed in the truncated cone portion 6. Under normal conditions, the spring 3 applies upward pressure to the ball, so that the ball is tightly against the inner wall of the valve cavity 2, thereby closing the channel to prevent the fluid from flowing back; when the fluid backflow pressure is too large, the pressure overcomes the spring force, pushing the ball downward, and the valve opens to allow the fluid to pass. When the fluid stops or flows forward, the spring 3 force presses the ball against the inner wall of the valve cavity 2 again, closing the valve to prevent the fluid from flowing back.

[0041] In summary, in the one-way flow control valve of the present invention, the ball is contained in the truncated cone portion 6 of the spring 3 to keep stable movement, and the spring 3 applies upward pressure to the ball, so that the ball and the inner wall of the valve chamber 2 are tightly held, thereby closing the channel to prevent fluid backflow; when the backflow pressure of the fluid is too large, the pressure overcomes the spring force, pushes the ball downward, and the valve opens to allow the fluid to pass; not only the number of parts is reduced, but also when working under high pressure, the contact between the spring 3 and the ball is more stable, reducing the risk of failure caused by loose or damaged parts, thereby improving the overall reliability and durability of the valve. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0042] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A one-way flow control valve, comprising a main valve seat, characterized in that: It also includes a valve cavity, a spring and a ball. The valve cavity is opened in the valve seat. The spring includes a connected cylindrical part and a conical part. The conical part is located above the cylindrical part. The cylindrical part is supported in the valve cavity. The conical part contains the ball. The ball is abutted against the inner wall of the valve cavity.

2. The one-way flow control valve according to claim 1, characterized in that: It also includes a liquid inlet channel and a liquid outlet channel. The top of the valve cavity is connected to the liquid outlet channel. The liquid inlet channel is connected to the side wall of the valve cavity. The ball is located above the connection between the liquid inlet channel and the valve cavity.

3. The one-way flow control valve according to claim 2, characterized in that: It also includes a valve core seat and a valve core body. The valve core seat is fixed on the main valve seat. The valve core body is movably arranged in the valve core seat. The free end of the valve core body is located in the liquid inlet channel.

4. The one-way flow control valve according to claim 3, characterized in that: A first sealing member is arranged between the valve core seat and the main valve seat.

5. The one-way flow control valve according to claim 3, characterized in that: It also includes a rotating handle, which is detachably mounted on the valve core body.

6. The one-way flow control valve according to claim 1, characterized in that: It also includes a spring nut. The bottom of the valve cavity is threadedly connected with the spring nut, and the spring is compressed in the spring nut.

7. The one-way flow control valve according to claim 6, characterized in that: A second sealing member is provided at the connection between the spring nut and the valve cavity.

8. The one-way flow control valve according to claim 1, characterized in that: The round balls are steel balls.

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