Three-position angle valve

Abstract

The utility model relates to the technical field of valves, in particular to a three-position angle valve. A three-position angle valve comprises a valve body, a valve element and a driving part arranged at one end of the valve body, the valve body is internally provided with a cavity, a first air channel, a second air channel and a valve seat matched with the valve element, the first air channel and the second air channel are communicated with the cavity, and the driving end of the driving part is connected with the valve element. The driving piece is provided with an electromagnetic valve used for controlling the driving piece to drive the valve element to move linearly. The electromagnetic valve is used for controlling the driving part to drive the valve element, so that accurate control over the fluid flow can be achieved, the accurate control is crucial to industrial application needing high-precision fluid management, the stability and reliability of a system can be ensured, meanwhile, the air cylinder serves as the driving part, push-pull action can be rapidly completed in a short time, and the cost is reduced. And the control precision and the response speed are further improved.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a three-position angle valve. Background Art

[0002] Vacuum technology, as a technology that creates and maintains a pressure below one atmosphere in a specific space, is widely used in semiconductor manufacturing, aerospace, scientific research experiments, food processing, medical and pharmaceutical industries, and vacuum valves, as a key component in the vacuum system, can control the flow of gas to achieve precise control of key parameters such as vacuum degree, flow and pressure. Specifically, the opening and closing functions of the vacuum valve can reduce gas leakage and pollution, thereby maintaining the stability and reliability of the vacuum system.

[0003] The vacuum valve in the related technology opens or closes the valve by raising and lowering the valve disc through linear motion, thereby isolating the vacuum system from other systems. However, this design makes the flow control relatively rough and difficult to achieve high-precision adjustment, because the lifting and lowering action of the valve disc can usually only achieve a fully open, fully closed or partially open state, but cannot achieve fine flow adjustment. In addition, the adjustment method is usually relatively simple and lacks feedback and automatic control systems. As a result, the stop valve may not meet the requirements in application scenarios that require real-time and precise control of gas flow and vacuum degree.

[0004] In order to solve the above problems, a three-position angle valve is provided. Utility Model Content

[0005] The present application provides a three-position angle valve, which aims to solve the problems of insufficient flow control accuracy, lack of real-time feedback and automatic control system in vacuum valves in related technologies.

[0006] The three-position angle valve provided in this application adopts the following technical solution:

[0007] A three-position angle valve comprises a valve body, a valve core and a driving member arranged at one end of the valve body, wherein the valve body has a chamber, a first air channel and a second air channel respectively connected to the chamber, and a valve seat adapted to the valve core, the driving end of the driving member is connected to the valve core, and the driving member is provided with an electromagnetic valve for controlling the driving member to drive the valve core to move in a straight line.

[0008] By adopting the above technical solution: using the solenoid valve set on the driving part to control the movement of the driving part, and then driving the movement of the valve core, it has the advantages of fast response speed and high control accuracy, and is suitable for occasions where precise control of fluid flow is required. This design has the advantages of compact structure, high control accuracy, fast response speed, etc., can meet the needs of complex and delicate fluid control, and has broad application prospects in the fields of industrial automation and fluid control.

[0009] Preferably, one end of the solenoid valve is connected to an automatic control system.

[0010] By adopting the above technical solution: remote monitoring and management of the three-position angle valve can be realized, reducing the possibility of manual intervention and erroneous operation. At the same time, the automatic control system can also adjust the position of the valve core in real time according to production needs to optimize the flow and control effect of the fluid.

[0011] Preferably, a valve cover is provided between the valve body and the driving member, and an O-ring is provided on the contact surface between the valve cover and the valve body.

[0012] By adopting the above technical solution: the O-ring can effectively form a seal between the valve cover and the valve body to prevent fluid or gas from leaking from the contact surface. This sealing performance is crucial to ensure the stable operation and safety of the angle valve.

[0013] Preferably, the valve core includes a piston shaft and a reset member, and the reset member can return the piston shaft to an initial state without being affected by external forces.

[0014] By adopting the above technical solution: after the piston shaft is subjected to external force and changes its position, once the external force disappears, the piston shaft can be automatically pushed back or pulled back to the initial position. This automatic reset function ensures that the angle valve can be restored to its initial state without manual intervention, thereby improving the automation level and reliability of the system;

[0015] In addition, the automatic reset function can ensure that in abnormal situations (such as power outages, control system failures, etc.), the angle valve can be quickly closed or restored to a safe state, thereby preventing safety accidents such as fluid leakage or system loss of control.

[0016] Preferably, the reset element is a reset spring.

[0017] By adopting the above technical solution: the three-position angle valve using a reset spring as a reset member has the advantages of high reliability, low cost, strong adaptability, easy installation and maintenance, and improved system stability, and is an economical and practical technical choice.

[0018] Preferably, a sealing member is provided on the valve seat for sealing the valve seat in the valve body.

[0019] By adopting the above technical solution, a reliable barrier is formed between the valve seat and the valve body to prevent fluid or gas from leaking from the gap between the valve body and the valve seat when the valve seat is closed. This enhanced sealing performance can significantly improve the working efficiency and safety of the angle valve.

[0020] Preferably, the driving member is a cylinder.

[0021] By adopting the above technical solution: the cylinder usually has high reliability and stability, and can operate stably under various working conditions. Its structure is simple, durable, and the maintenance cost is relatively low, which makes the three-position angle valve using the cylinder as the driving part have a long service life and a low failure rate.

[0022] Preferably, the driving member is an electric push rod.

[0023] By adopting the above technical solution: the electric push rod is electrically driven and can quickly complete the push-pull action in a short time, thereby realizing fast and precise control of the angle valve.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The present application uses a solenoid valve to control the driving member to drive the valve core, so that the fluid flow can be precisely controlled. Whether the valve is in a closed state, a partially open state, or a fully open state, the valve can maintain an excellent sealing effect. This precise control is essential for industrial applications that require high-precision fluid management and can ensure the stability and reliability of the system. At the same time, when the vacuum pump stops working or the power supply is suddenly interrupted, the solenoid valve can automatically close the vacuum system and fill the pump cavity with atmospheric air through the pump's air inlet, thereby preventing the pump oil from reflux and contaminating the vacuum system. This helps maintain the stability and reliability of the vacuum system and prevents system failures caused by external factors.

[0026] 2. This application can realize remote monitoring and management of the three-position angle valve by connecting the solenoid valve to the automatic control system, and has a fast switching function, which can complete the state switching from closed to partially open or fully open in a short time. This feature enables the vacuum system to respond quickly to changes in external conditions and improve the flexibility and stability of the system. This reduces the possibility of manual intervention and erroneous operation, and also enables the system to adjust the position of the valve core in real time according to production needs, optimizing the flow and control effect of the fluid. This high degree of automation and remote control function greatly improves the flexibility and adaptability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the three-position angle valve of Example 1 of the present application;

[0028] Figure 2 It is a partial cross-sectional structural schematic diagram of a three-position angle valve in Example 1 of the present application;

[0029] Figure 3 It is a schematic diagram of the overall structure of the three-position angle valve in Example 2 of the present application.

[0030] Figure numerals: 1. valve body; 11. first air channel; 12. second air channel; 13. valve seat; 131. sealing member; 2. valve core; 21. piston shaft; 22. reset member; 3. driving member; 4. solenoid valve; 5. automatic control system; 6. valve cover; 7. O-ring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] Example 1

[0033] Embodiment 1 of the present application discloses a three-position angle valve, referring to Figure 1 , including a valve body 1 and a valve core 2. The valve body 1 is a three-way right-angle valve, and has a chamber inside. The chamber is respectively connected to a first air passage 11 and a second air passage 12 opened on the valve body 1, and a valve seat 13 is installed at the connection between the valve body 1 and the first air passage 11. The valve core 2 can be adapted to be installed with the valve seat 13, so that the entire valve is closed;

[0034] A driving member 3 is installed at the outlet of the valve body 1 except the first air channel 11 and the second air channel 12. In this embodiment, it is a cylinder. The driving end of the cylinder is connected to the valve core 2, so that it can drive the valve core 2 to reciprocate linearly in the valve body 1, and an electromagnetic valve 4 is installed on the outside of the cylinder. The electromagnetic valve 4 can achieve precise control of the valve by controlling the flow of gas.

[0035] Reference Figure 2 The valve core 2 is composed of a piston shaft 21 and a reset member 22. The reset member 22 can make the piston shaft 21 return to the initial state without the action of external force. In this embodiment, the reset member 22 is a reset spring. The two ends of the reset spring are respectively in contact with the valve seat 13 and the valve cover 6. When the piston shaft 21 is driven by the cylinder to stand and change its position, once the external force disappears, the reset spring can automatically push or pull the piston shaft 21 back to the initial position. This automatic reset function ensures that the angle valve can be restored to the initial state without manual intervention, thereby improving the automation level and reliability of the system.

[0036] In addition, the automatic reset function can ensure that in abnormal situations (such as power outages, control system failures, etc.), the three-position angle valve can be quickly closed or restored to a safe state, thereby preventing safety accidents such as fluid leakage or system loss of control.

[0037] In order to realize remote control and save labor costs, one end of the solenoid valve 4 is also connected to an automatic control system 5. By using the automatic control system 5, remote monitoring and management of the three-position angle valve can be realized, reducing the possibility of manual intervention and erroneous operation. At the same time, the automatic control system 5 can also adjust the position of the valve core 2 in real time according to production needs to optimize the flow and control effect of the fluid.

[0038] In addition, to ensure the sealing of the three-position angle valve, refer to Figure 2 A valve cover 6 is installed between the valve body 1 and the cylinder. The driving end of the cylinder passes through the valve cover 6 and extends into the chamber of the valve body 1. O-rings 7 are installed on the contact surfaces between the valve cover 6 and the valve body 1, as well as the contact surfaces between the valve cover 6 and the cylinder. At the same time, a seal 131 is installed on the contact surface between the valve seat 13 and the first air channel 11, which effectively reduces the risk of fluid or gas leakage from the contact surface. This sealing performance is crucial to ensuring the stable operation and safety of the three-position angle valve.

[0039] The working process and implementation principle of Example 1 are as follows:

[0040] Initial state: The three-position angle valve is in the closed state. The valve core 2 (composed of the piston shaft 21 and the reset member 22) is pressed against the valve seat 13 by the reset member 22 (a reset spring in this example), sealing the first air passage 11 to prevent fluid or gas from passing through. The solenoid valve 4 is in the closed state and does not provide driving gas to the cylinder;

[0041] The automatic control system 5 is connected to the solenoid valve 4, but does not send any control signal.

[0042] Opening process: After receiving the opening command, the automatic control system 5 sends a control signal to the solenoid valve 4. After receiving the control signal, the solenoid valve 4 opens the channel allowing the gas to flow, allowing the gas to enter the driving end of the cylinder. Under the action of the gas, the driving end of the cylinder pushes the valve core 2 (piston shaft 21) to move linearly in the valve body 1 and leave the valve seat 13, thereby opening the first airway 11 and allowing the fluid or gas to pass through;

[0043] When the valve core 2 is in a half-open state, the control fluid flow enters the vacuum system to form a stable vacuum system;

[0044] The return spring is compressed during the movement of the valve core 2.

[0045] Keep Status:

[0046] When the valve core 2 moves to the desired position, the automatic control system 5 stops sending control signals to the solenoid valve 4, the solenoid valve 4 closes the channel for gas flow, the gas pressure in the cylinder is maintained, the valve core 2 stays at the current position, and the fluid or gas flows through the opened first air channel 11 and the second air channel 12.

[0047] Closing process:

[0048] After receiving the closing command, the automatic control system 5 sends a control signal to the solenoid valve 4 again. The solenoid valve 4 changes the direction of gas flow, so that the gas at the driving end of the cylinder is discharged, the pressure is reduced, and the return spring is compressed before, and now releases energy, pushing the valve core 2 (piston shaft 21) back to the initial position, and closes the valve seat 13 again, closing the first air channel 11;

[0049] The automatic control system 5 stops sending the control signal to the solenoid valve 4, and the solenoid valve 4 is closed.

[0050] During the entire working process, the O-ring 7 between the valve cover 6, the cylinder and the valve body 1 and the seal 131 between the valve seat 13 and the first air channel 11 ensure good sealing to prevent fluid or gas leakage.

[0051] The presence of the solenoid valve 4 ensures that in abnormal situations (such as power outages, control system failures, etc.), the three-position angle valve can be quickly closed or restored to a safe state to prevent the occurrence of safety accidents. In addition, through the automated control system 5, the three-position angle valve can be remotely monitored and managed, the state of the angle valve can be viewed in real time, and the position of the valve core 2 can be adjusted according to production needs to optimize the fluid control effect.

[0052] Example 2

[0053] A three-position angle valve, which differs from Example 1 in that, referring to Figure 3 , the driving member 3 is an electric push rod.

[0054] The working process and implementation principle of Example 2 are as follows:

[0055] In the initial state, the electric push rod is not activated, and the valve core 2 closes the first airway 11. When it is necessary to open, the automatic control system 5 sends a signal to the solenoid valve 4, the electric push rod starts, drives the valve core 2 to leave the valve seat 13, and opens the airway. When in the holding state, the push rod maintains the position of the valve core 2. When closing, the control system sends a signal again, the electric push rod retracts, and the return spring pushes the valve core 2 back to the initial position, closing the airway. During the whole process, the seal 131 and the O-ring 7 ensure airtightness, and the automatic control system 5 realizes remote monitoring and precise control.

[0056] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A three-position angle valve, characterized in that: The invention comprises a valve body (1), a valve core (2) and a driving member (3) arranged at one end of the valve body (1); the valve body (1) has a chamber, a first air channel (11) and a second air channel (12) respectively connected to the chamber, and a valve seat (13) adapted to the valve core (2); the driving end of the driving member (3) is connected to the valve core (2); and the driving member (3) is provided with a solenoid valve (4) for controlling the driving member (3) to drive the valve core (2) to move in a straight line.

2. The three-position angle valve according to claim 1, characterized in that: One end of the solenoid valve (4) is connected to an automatic control system (5).

3. The three-position angle valve according to claim 1, characterized in that: A valve cover (6) is arranged between the valve body (1) and the driving member (3), and an O-type sealing ring (7) is arranged on the contact surface between the valve cover (6) and the valve body (1).

4. The three-position angle valve according to claim 1, characterized in that: The valve core (2) comprises a piston shaft (21) and a reset member (22), wherein the reset member (22) can return the piston shaft (21) to an initial state when no external force is applied.

5. The three-position angle valve according to claim 4, characterized in that: The reset element (22) is a reset spring.

6. The three-position angle valve according to claim 1, characterized in that: The valve seat (13) is provided with a sealing member (131) for sealing the valve seat (13) in the valve body (1).

7. The three-position angle valve according to claim 1, characterized in that: The driving member (3) is a cylinder.

8. The three-position angle valve according to claim 1, characterized in that: The driving member (3) is an electric push rod.

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