A small high pressure valve with fast switching

Abstract

The utility model relates to high pressure valve field especially relates to a small high pressure valve of quick switching, including flow pipeline, be equipped with water inlet and water outlet in flow pipeline, be used for guiding fluid flow, wherein water inlet communicates with piston assembly, to allow fluid to flow from water inlet into piston assembly inside, piston assembly sets up in the upside position of water outlet, is used for closing water outlet, is provided with switching assembly on the upside of piston assembly, the movable joint has iron core in switching assembly, the lower end of iron core is provided with sealing piece no.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure valves, and more particularly to a small high-pressure valve with rapid switching. Background Technology

[0002] High-pressure valves are key devices used to control the flow of high-pressure fluids (such as gases and liquids). They can precisely regulate fluid pressure and flow rate, prevent system damage due to excessive pressure, and ensure the safe and stable operation of high-pressure equipment. They are widely used in high-pressure fields such as petrochemicals and aerospace.

[0003] However, existing mechanically driven valves, such as manual or pneumatic valves, mainly rely on external force transmission mechanisms such as gears and levers to achieve valve opening and closing actions. Because these valves have long action chains involving multiple stages of mechanical transmission, the switching time can be as long as hundreds of milliseconds to several seconds, which severely limits their application in high-frequency switching applications, such as hydraulic pulse systems and precision chemical injection. This reliance on multi-stage mechanical transmission not only increases the complexity of the system but also further slows down the valve's response speed, failing to meet the requirements for rapid and precise control of fluid flow. Utility Model Content

[0004] In order to overcome the problem that existing mechanically driven valves rely on multi-stage mechanical transmission, have long switching times, and cannot meet the requirements of high-frequency switching and rapid and precise control of fluid flow.

[0005] The technical solution of this utility model is as follows: a small high-pressure valve with rapid switching, including a flow pipe with an inlet and an outlet for guiding fluid flow. The inlet is connected to a piston assembly to allow fluid to flow into the piston assembly. The piston assembly is positioned above the outlet to close it. A switching assembly is located above the piston assembly, with an iron core movably connected inside. A sealing element is located at the lower end of the iron core, which is adapted to the output port of the piston assembly to form a sealing interface. The iron core is connected to the switching assembly via an elastic element, which provides a restoring force to maintain the sealing element in a closed state at the output port under normal conditions. One end of the switching assembly is integrated with an electrical connector for receiving external electrical energy input. When the connector is energized, an electromagnetic effect is generated inside the switching assembly, producing a magnetic field that drives the iron core to move linearly in the vertical direction, overcoming the restoring force of the elastic element, thereby causing the sealing element to disengage from the output port and open it.

[0006] Preferably, the piston assembly includes a connecting structure disposed on the flow pipe, a movable body disposed within the connecting structure, an outlet pipe and an inlet pipe disposed inside the movable body, the inlet pipe being connected to the inlet and the outlet pipe being connected to the outlet, and a sealing element 2 for sealing the outlet being disposed at the lower end of the movable body.

[0007] Preferably, the switching component includes a housing, inside which a coil that generates an electromagnetic effect is disposed, and a fixing block that encloses the housing is disposed on the upper part of the housing, with the end face of the fixing block connected to one end of an elastic element.

[0008] Preferably, the connection structure includes a connection base disposed on the flow pipe, an integrally disposed baffle plate inserted into the housing at the upper end of the connection base, and a sealing element three at the connection between the connection base and the flow pipe.

[0009] Preferably, the water inlet pipe includes an inclined water inlet branch one and a vertical water inlet branch two, with the inner diameter of the second water inlet branch being larger than that of the first water inlet branch.

[0010] Preferably, the water outlet pipe includes a vertically arranged water outlet branch one and a water outlet branch two, with the inner diameter of the water outlet branch two being larger than the inner diameter of the water inlet branch two.

[0011] Preferably, the cross-sectional area of ​​the inner cavity of the flow channel decreases from both sides toward the center.

[0012] The beneficial effects of this utility model are: By rapidly moving the iron core via electromagnetic drive, the seal and piston assembly outlet are quickly separated, thereby rapidly opening the outlet. This greatly improves the valve switching speed, effectively reduces the waiting time during fluid flow, and enhances work efficiency and response speed. It is advantageous for applications requiring frequent fluid path switching. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of one embodiment of a small high-pressure valve with rapid switching according to the present invention. Figure 2 The diagram shown is a front view of this utility model; Figure 3 The diagram shown is a top view of the present invention. Figure 4 What is shown is Figure 2 A sectional view; Figure 5 What is shown is Figure 4 Schematic diagram of the structure at point A in the middle.

[0014] Explanation of reference numerals in the attached diagram: 1. Flow pipe; 2. Inlet; 3. Outlet; 4. Iron core; 5. Seal 1; 6. Elastic element; 7. Plug; 8. Moving body; 9. Seal 2; 10. Outer shell; 11. Coil; 12. Fixing block; 13. Connecting base; 14. Isolation plate; 15. Seal 3; 16. Inlet branch 1; 17. Inlet branch 2; 18. Outlet branch 1; 19. Outlet branch 2. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please see Figure 1 - Figure 5This utility model provides an embodiment: a small high-pressure valve with rapid switching, including a flow pipe 1, an inlet 2 and an outlet 3 inside the flow pipe 1 for guiding fluid flow, wherein the inlet 2 is connected to a piston assembly to allow fluid to flow into the piston assembly from the inlet 2. The piston assembly is located above the outlet 3 to close the outlet 3. A switching assembly is provided on the upper side of the piston assembly, and an iron core 4 is movably connected inside the switching assembly. A sealing element 5 is provided at the lower end of the iron core 4. The sealing element 5 is adapted to the outlet of the piston assembly to form a sealing interface. The iron core 4 is connected to the switching assembly through an elastic element 6. The elastic element 6 provides a restoring force to maintain the sealing element 5 in the closed state of the outlet under normal conditions. One end of the switching assembly... The valve integrates an electrical connector 7 for receiving external electrical input. When connector 7 is energized, an electromagnetic effect is generated inside the switching assembly, producing a magnetic field that drives the iron core 4 to move linearly in the vertical direction, overcoming the restoring force of the elastic element 6. This causes the seal 5 to disengage from the output port, opening the output port. The flow pipe 1 is the channel for fluid flow in the entire small high-pressure valve, providing a clear transmission path for the fluid. The interior of the flow pipe 1 is precision-machined with a smooth surface to reduce fluid resistance during flow and lower energy loss. The piston assembly controls the flow of fluid from the inlet 2 to the outlet 3. The piston assembly allows fluid to flow into its interior from the inlet 2. Under normal power-off conditions, the piston assembly is in the closed position of the outlet 3, preventing fluid from flowing out of the outlet. Inlet 2 flows directly into outlet 3, effectively blocking fluid flow. When energized, the switching assembly activates, causing the piston assembly to move, changing its relative position to outlet 3 and allowing fluid to pass through. The switching assembly controls the piston assembly's state and enables rapid valve switching. By driving the iron core 4, it controls the opening and closing of the piston assembly. One end of the switching assembly integrates an electrical connector 7 to receive external power input, introducing external power into the switching assembly to provide energy for the electromagnetic effect. The iron core 4 is the electromagnetically driven actuator, made of a high-permeability metal material (such as soft iron), capable of rapid response and movement in an electromagnetic field. When the switching assembly is energized... When powered, the internal electromagnetic coil 11 generates a magnetic field. Under the influence of this magnetic field, the iron core 4 is attracted by electromagnetic force and moves linearly in the vertical direction. The movement of the iron core 4 drives the sealing element 5 at its lower end to move synchronously, thereby opening the outlet of the piston assembly. The sealing element 5 is made of elastic sealing material (such as rubber, silicone, etc.), which has good sealing performance and elastic deformation ability. When the power is off, the sealing element 5 is pressed tightly against the outlet of the piston assembly under the action of the elastic element 6, forming a reliable seal, thereby closing the outlet 3 of the piston assembly. When the iron core 4 moves upward under the action of electromagnetic force, the sealing element 5 disengages from the outlet, opening the outlet and allowing fluid to pass smoothly, relieving the pressure on the upper side of the piston assembly.This causes the pressure on the upper side of the piston assembly to be less than the pressure on the lower side, thus lifting the piston assembly and opening the outlet 3.

[0017] Please see Figure 4 In this embodiment, the piston assembly includes a connecting structure disposed on the flow pipe 1. A movable body 8 is disposed within the connecting structure. The movable body 8 has an outlet pipe and an inlet pipe inside. The inlet pipe communicates with the inlet 2, and the outlet pipe communicates with the outlet 3. A sealing element 9 is disposed at the lower end of the movable body 8 to seal the outlet 3. The switching assembly includes a housing 10. A coil 11 that generates an electromagnetic effect is disposed inside the housing 10. A fixing block 12 that seals the housing 10 is disposed on the upper part of the housing 10. The end face of the fixing block 12 is connected to one end of the elastic element 6. The connecting structure includes a connecting base 13 disposed on the flow pipe 1. A baffle plate 14 is integrally disposed at the upper end of the connecting base 13 and inserted into the housing 10. A sealing element 15 is disposed at the connection between the connecting base 13 and the flow pipe 1. The connecting base 13, disposed on the flow pipe 1, provides a foundation for the connection between the piston assembly and the flow pipe 1, ensuring the stability and sealing of the connection. The baffle plate 14, inserted into the housing 10 of the switching assembly, serves a positioning function, connecting the piston assembly and the switching assembly. The components are reasonably separated and connected to ensure their coordinated operation. Seal 15 is used to prevent fluid leakage from the connection. The movable body 8 is set inside the connection structure and is the component in the piston assembly that realizes fluid control and sealing functions. The movable body 8 can move to a certain extent within the connection structure to change the on / off state of the fluid channel. Seal 9 is used to close the outlet 3. Seal 9 fits tightly with the outlet 3 to prevent fluid from flowing out of the outlet 3. When the movable body 8 is moved under the control of the switching component, the seal 9 can change its contact state with the outlet 3 as the movable body 8 moves, realizing the opening and closing function of the outlet 3. The coil 11 is set inside the housing 10 and is the component that generates electromagnetic effect. When the electrical connector 7 is connected to an external power source, when current passes through the coil 11, a magnetic field is generated around the coil 11, thereby generating a corresponding electromagnetic force on the iron core 4, driving the iron core 4 to move linearly in the vertical direction. The fixing block 12 serves to close the housing 10 and fix the elastic element 6, providing a stable support point for the elastic element 6.

[0018] Please see Figure 4 and Figure 5In this embodiment, the inlet pipe includes an inclined inlet branch 16 and a vertically arranged inlet branch 2 17. The inner diameter of inlet branch 2 17 is larger than that of inlet branch 16. The outlet pipe includes a vertically arranged outlet branch 18 and an outlet branch 2 19. The inner diameter of outlet branch 2 19 is larger than that of inlet branch 2 17. The cross-sectional area of ​​the inner cavity of the flow pipe 1 decreases from both sides toward the center. The inclined inlet branch 16 guides the fluid into the interior of the moving body 8. The vertically arranged inlet branch 2 17 is connected to inlet branch 16, and its inner diameter is larger than that of inlet branch 16. This design ensures that when the fluid enters inlet branch 2 17 from inlet branch 16... The flow rate will decrease accordingly, and the pressure distribution will be more uniform, ensuring that the fluid can enter the interior of the moving body 8 with a stable flow rate and pressure. The vertically set outlet branch 18 is used to guide the fluid from the interior of the moving body 8 to the outlet 3. The inner diameter of the outlet branch 19 is larger than that of the inlet branch 17, so that the outflow of fluid is greater than the inflow, which in turn makes the pressure on the upper side of the moving body 8 less than the pressure on the lower side, thus allowing the moving body 8 to be lifted. The cross-section of the inner cavity of the flow pipe 1 decreases from both sides towards the middle. This design allows the fluid to gradually converge towards the middle of the pipe when flowing in the flow pipe 1, forming a relatively concentrated fluid stream, which can increase the flow rate of the fluid in the pipe and enhance the kinetic energy of the fluid.

[0019] Working principle: First, when the small high-pressure valve with rapid switching is in the de-energized state, the moving body 8 in the piston assembly is held in the lower position under the action of the elastic element 6, and the sealing element 2 9 is tightly fitted to the outlet 3 to form a reliable seal, preventing the fluid from flowing out of the outlet 3. At this time, the inlet 2 is connected to the inside of the moving body 8 through the inlet pipe (including the inclined inlet branch 16 and the vertical inlet branch 2 17), but because the outlet 3 is sealed, the fluid cannot flow out. When it is necessary to open the outlet 3, an external power supply is connected through the electrical connection plug 7. The current passes through the coil 11 in the switching component, and a magnetic field is generated around the coil 11, which generates an electromagnetic force on the iron core 4, driving the iron core 4 to move linearly in the vertical direction. The movement of the iron core 4 causes the sealing element 5 set at its lower end to move synchronously, so that the sealing element 5 is separated from the output port of the piston assembly, thereby releasing the seal on the upper side of the moving body 8. Because the inner diameter of the second outlet branch 19 is larger than that of the second inlet branch 17, when the fluid flows out from the inside of the moving body 8 through the outlet pipe (including the vertically arranged outlet branch 18 and outlet branch 19), the flow velocity will increase and the pressure distribution will change, so that the pressure on the upper side of the moving body 8 is less than the pressure on the lower side. Under the action of this pressure difference, the moving body 8 will be lifted up, and the second seal 9 will leave the outlet 3. The outlet 3 will open, and the fluid can flow out smoothly through the flow pipe 1. Meanwhile, the design of the inner cross-section of the flow pipe 1 decreasing from both sides towards the middle allows the fluid to gradually converge towards the middle of the pipe as it flows, forming a relatively concentrated fluid stream. This increases the flow velocity and kinetic energy of the fluid within the pipe, facilitating rapid fluid outflow. When it is necessary to close the outlet 3, simply disconnect the external power supply. The iron core 4 returns to its original position under the restoring force of the elastic element 6, and the first seal 5 presses tightly against the output port of the piston assembly again, forming a seal. The moving body 8 also returns to its lower position under the action of the elastic element 6, and the second seal 9 adheres to the outlet 3 again, preventing fluid from flowing out.

[0020] Through the above steps, the electromagnetically driven iron core 4 moves rapidly, quickly separating the seal 5 from the piston output port, and quickly opening the water outlet 3. This improves the valve switching speed, reduces waiting time, and enhances work efficiency and response speed. It solves the problem that existing mechanically driven valves rely on multi-stage mechanical transmission, have long switching times, and cannot meet the requirements of high-frequency switching and rapid and precise control of fluid flow.

Claims

1. A small, high-pressure valve with rapid switching capability, characterized in that: The system includes a flow channel (1), which has an inlet (2) and an outlet (3) for guiding fluid flow. The inlet (2) is connected to the piston assembly to allow fluid to flow into the piston assembly from the inlet (2). The piston assembly is located above the outlet (3) to close the outlet (3). A switching assembly is provided on the upper side of the piston assembly. An iron core (4) is movably connected inside the switching assembly. A sealing element (5) is provided at the lower end of the iron core (4). The sealing element (5) is adapted to the outlet of the piston assembly. To form a sealed interface, the iron core (4) is connected to the switching assembly through the elastic element (6). The elastic element (6) provides a restoring force to maintain the sealing element (5) in the closed state of the output port under normal conditions. One end of the switching assembly is integrated with an electrical connection plug (7) for receiving external power input. When the plug (7) is energized, an electromagnetic effect is formed inside the switching assembly, generating a magnetic field to drive the iron core (4) to move linearly in the vertical direction, overcoming the restoring force of the elastic element (6), thereby causing the sealing element (5) to disengage from the output port and realize the opening of the output port.

2. The small high-pressure valve with rapid switching according to claim 1, characterized in that: The piston assembly includes a connecting structure set on the flow pipe (1), and a movable body (8) is set inside the connecting structure. The movable body (8) has an outlet pipe and an inlet pipe inside. The inlet pipe is connected to the inlet (2), and the outlet pipe is connected to the outlet (3). The lower end of the movable body (8) is provided with a sealing element (9) to close the outlet (3).

3. The small high-pressure valve with rapid switching according to claim 2, characterized in that: The switching assembly includes a housing (10), a coil (11) that generates an electromagnetic effect is provided inside the housing (10), and a fixing block (12) that closes the housing (10) is provided on the upper part of the housing (10), with the end face of the fixing block (12) connected to one end of the elastic element (6).

4. A small, high-pressure valve with rapid switching according to claim 3, characterized in that: The connection structure includes a connection base (13) set on the flow pipe (1), an isolation plate (14) inserted into the outer shell (10) is integrally set at the upper end of the connection base (13), and a sealing element (15) is set at the connection between the connection base (13) and the flow pipe (1).

5. A small, high-pressure valve with rapid switching according to claim 4, characterized in that: The water inlet pipe includes an inclined water inlet branch one (16) and a vertical water inlet branch two (17), the inner diameter of which is larger than that of the inner diameter of the water inlet branch one (16).

6. A small, high-pressure valve with rapid switching according to claim 5, characterized in that: The water outlet pipe includes a vertically arranged water outlet branch 1 (18) and water outlet branch 2 (19), the inner diameter of water outlet branch 2 (19) is larger than the inner diameter of water inlet branch 2 (17).

7. A small, high-pressure valve with rapid switching according to claim 6, characterized in that: The cross-sectional area of ​​the inner cavity of the flow channel (1) decreases from both sides toward the middle.

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