Bidirectional control electromagnetic valve

Abstract

The invention relates to the technical field of electromagnetic valves, in particular to a bidirectional control electromagnetic valve which comprises a main valve body, one side of the main valve body is connected with a valve cylinder through a sealing connecting ring, oil inlets are formed in one side of the middle of the valve cylinder, and a first oil outlet is formed in the side, away from the main valve body, of each oil inlet; a second oil outlet is formed in the side, away from the first oil outlet, of the oil inlet, an oil return opening is formed in the end of the valve cylinder, a valve element is arranged in the main valve body and movably connected with the main valve body, one end of the valve element extends into the valve cylinder to be connected with a first valve block, and the other end of the valve element extends into the valve cylinder to be connected with a second valve block. The outer wall of the first valve block abuts against the first oil outlet, and a second valve block is arranged on one side of the first valve block. Two-way control of the electromagnetic valve is achieved through interaction of the first electromagnet and the second electromagnet, the overall size of the electromagnetic valve is reduced through the integrated design, and the electromagnetic valve is suitable for being installed in a narrow space.

Description

Technical Field

[0001] The present application relates to the technical field of solenoid valves, and in particular to a two-way control solenoid valve. Background Art

[0002] A solenoid valve is a switch device that uses electromagnetic principles to control fluids. It is widely used in industrial automation control systems. Its core component is an electromagnet, which is activated by applying current to generate a magnetic field. When the electromagnet is energized, the magnetic field generated will cause the valve core to move, thereby changing the valve opening state and controlling the flow of fluid. This method of controlling the displacement of the valve core by changing the magnetic field achieves precise control of the fluid. In the prior art, the relevant technology of the solenoid valve can refer to the Chinese patent with the announcement number CN202629267U, which discloses a solenoid valve, including a valve body, a diaphragm, an isolation sleeve, a pressure plate, a fixed iron core, a movable iron core, a spring, a coil and a cover shell, wherein the valve body is provided with a water inlet and a water outlet at both ends, a diaphragm is installed in the valve body, an isolation sleeve is installed above the diaphragm, and the isolation sleeve is fixed to the valve body through the pressure plate on the valve body; the isolation sleeve is provided with a coil outside, and a movable iron core is installed inside the isolation sleeve, the spring is located in the movable iron core, and the upper end of the spring is fixedly connected to the fixed iron core; the upper end of the fixed iron core is fixed with a cover shell, wherein a center hole is opened in the middle of the diaphragm, and a needle valve for controlling the opening and closing of the water inlet and the water outlet is installed at the lower end of the movable iron core, and the valve stem of the needle valve passes through the center hole of the diaphragm and is fixedly connected to the lower end of the spring. The solenoid valve adopting this structure has good corrosion resistance and improves the service life of the solenoid valve. In the process of realizing this application, the inventor found that the prior art has the following problems: Existing two-way control solenoid valves usually rely on two independent electromagnetic coils to control the flow of fluid in two directions. Although this method can achieve two-way control, it requires additional space and power, resulting in a larger overall volume and higher power consumption. At the same time, the stress of the return spring in the solenoid valve may decrease as the working time continues after long-term use, resulting in stress relaxation, which can easily affect the control accuracy of the solenoid valve. Summary of the invention

[0003] The purpose of this application is to provide a two-way control solenoid valve.

[0004] In the first aspect, the present application provides a two-way control solenoid valve adopts the following technical solution: A two-way control solenoid valve comprises a main valve body, one side of the main valve body is connected to a valve cylinder through a sealing connecting ring, an oil inlet is arranged on one side of the middle part of the valve cylinder, a first oil outlet is arranged on the side of the oil inlet away from the main valve body, a second oil outlet is arranged on the side of the oil inlet away from the first oil outlet, an oil return port is arranged at the end of the valve cylinder, a connecting pipe is connected to one side of the oil return port, an end of the connecting pipe passes through and extends to one side of the inner wall of the valve cylinder to be provided with a first connecting port, a second connecting port is arranged on one side of the No. 1 connecting port, a valve core is arranged inside the main valve body, and the The valve core is movably connected to the main valve body, one end of the valve core extends into the valve cylinder and is connected to a valve block No. 1, the outer wall of the valve block No. 1 is abutted against the oil outlet No. 1, a valve block No. 2 is arranged on one side of the valve block No. 1, the outer wall of the valve block No. 2 is abutted against the oil outlet No. 2, and a protruding end of one side of the valve block No. 2 is abutted against the connecting port No. 2, the connecting port No. 1 is connected with the oil outlet No. 1, a guide pipe is penetrated on one side of the valve block No. 1, a guide port is arranged on the top of the guide pipe, the guide port is abutted against the inner wall of the valve cylinder, and the guide port corresponds to the connecting port No. 1.

[0005] By adopting the above technical scheme, the main valve body plays a protective role for the solenoid valve shell. When the solenoid valve is powered off, the oil can flow through the oil inlet to the No. 1 connecting port and then be transmitted to the connecting pipe. Then, it is transmitted along the connecting pipe and flows out from the oil return port. The No. 1 oil outlet and the No. 2 oil outlet are in a closed state because the No. 1 valve block and the No. 2 valve block are abutted. At the same time, the No. 2 connecting port is also in a closed state. When the No. 1 electromagnet is energized, a magnetic field is generated. This magnetic field interacts with the magnetic material in the iron core to generate a force, so that the iron core overcomes the force of the reset spring and moves to the side of the No. 1 electromagnet in the direction of the No. 1 electromagnet. The movement of the iron core drives the valve core to move synchronously. The movement of the valve core drives the No. 1 valve block and the No. 2 valve block to move synchronously. The No. 1 valve block and the No. 2 valve block make the No. 1 oil outlet and the No. 2 oil outlet in an open state. At the same time, the guide port Following the movement of valve block No. 1, it moves to the position of connecting port No. 1 and is connected with it, so that the oil flows from the oil inlet to the oil outlet No. 1 and from the oil outlet No. 2 to the oil return port. When the No. 1 electromagnet is powered off and the No. 2 electromagnet is powered on, a new magnetic field is generated to move the iron core to the side close to the No. 2 electromagnet. The movement of the iron core drives the valve core to move synchronously. The movement of the valve core drives the No. 1 valve block and the No. 2 valve block to move synchronously, so that the outer wall of the No. 1 valve block abuts against the No. 1 connecting port, so that the No. 1 connecting port is closed. The No. 2 valve block is misaligned with the No. 2 connecting port, so that the No. 2 connecting port and the No. 2 oil outlet are connected with each other, so that the oil flows from the oil inlet to the No. 1 oil outlet, from the No. 2 oil outlet to the No. 2 connecting port, and then to the oil return port through the connecting pipe. The interaction between the No. 1 electromagnet and the No. 2 electromagnet realizes the two-way control of the solenoid valve.

[0006] The end of the valve core away from the valve cylinder is connected to an iron core, a coil is arranged around the outer wall of the iron core, a sealing ring is arranged on the inner wall of the connection between the main valve body and the valve cylinder, the sealing ring is sleeved on the outer wall of the valve core, a No. 1 electromagnet is connected to the outer wall of one side of the main valve body, a No. 2 electromagnet is arranged on one side of the No. 1 electromagnet, the end of the iron core away from the valve core is connected to a limiting movable plate, and a return spring is connected to one end of the limiting movable plate.

[0007] By adopting the above technical solution, the main purpose of winding the coil around the iron core is to generate a magnetic field. When the current of electromagnet No. 1 or electromagnet No. 2 passes through the coil, a magnetic field will be generated around the coil. This magnetic field will magnetize the iron core to form a magnetic pole. According to the law of magnetic lines of force, magnetic force will be generated between the magnetic poles. This magnetic force will cause the valve core to be attracted or repelled, thereby driving the iron core to move, so as to control the switch of the solenoid valve. The sealing performance of the fluid is ensured by the sealing ring, and the reset spring can ensure that the solenoid valve can automatically return to the preset state when the power is off.

[0008] A pressure sensor is arranged in the middle of the valve block No. 1 and the valve block No. 2, and the pressure sensor is connected to the inner wall of the valve cylinder. A temperature sensor is arranged on one side of the pressure sensor. A controller is connected to the outer wall of the main valve body away from the electromagnet No. 1, and a communication module is arranged on one side of the controller. The controller is connected to the communication module, the pressure sensor and the temperature sensor through wires.

[0009] By adopting the above technical solution, the temperature and pressure changes inside the solenoid valve can be monitored in real time through the pressure sensor and the temperature sensor, and the current of the solenoid coil can be automatically adjusted through the controller to achieve more precise fluid control.

[0010] A pressure regulating mechanism is provided at one end of the main valve body away from the valve cylinder, and the pressure regulating mechanism includes an extrusion plate, a threaded rod, a threaded cylinder, a limit rod and an adjusting knob. The extrusion plate is embedded in the main valve body, and one end of the return spring away from the limit movable plate is connected to the extrusion plate, and one end of the extrusion plate away from the return spring is connected to the threaded rod, and one end of the threaded rod away from the extrusion plate is threadedly connected to the threaded cylinder, and one end of the threaded cylinder away from the threaded rod is directly connected to the inner wall of the main valve body through a bearing.

[0011] By adopting the above technical solution, the stress of the reset spring in the solenoid valve may decrease as the working time continues after long-term use, resulting in stress relaxation. The No. 2 pressure sensor can detect the pressure between the extrusion plate and the iron core pushed by the reset spring when resetting. When the pressure decreases, the signal can be transmitted to the controller. The controller transmits the signal to the outside through the communication unit to remind the staff to make adjustments. The reset spring can be squeezed a certain distance through the pressure regulating mechanism so that its elastic force remains in a good state before stress relaxation, so as to improve the accuracy of the solenoid valve.

[0012] Limit rods are connected to both sides of the extrusion plate, and the ends of the limit rods penetrate the inner wall of the main valve body. An adjusting knob is arranged on the outer wall of one end of the main valve body, and the adjusting end of the adjusting knob is connected to the threaded barrel.

[0013] By adopting the above technical solution, the limit rod plays a limiting role, and the threaded barrel is driven to rotate synchronously by twisting the adjusting knob. The rotation of the threaded barrel drives the threaded rod to perform reciprocating translational motion. The translation of the threaded rod drives the extrusion plate to perform translational motion, thereby extruding the reset spring to facilitate its adjustment.

[0014] A No. 2 pressure sensor is provided on one side of the extrusion plate. The No. 2 pressure sensor is connected to the controller through an electric wire. Twisting the adjusting knob drives the threaded barrel to rotate synchronously. The rotation of the threaded barrel drives the threaded rod to perform reciprocating translational motion. The translation of the threaded rod drives the extrusion plate to perform translational motion, thereby extruding the reset spring.

[0015] By adopting the above technical solution, the No. 2 pressure sensor can detect the pressure between the extrusion plate and the iron core pushed by the reset spring during reset. When the pressure reduction is detected, the signal can be transmitted to the controller to facilitate adjustment through the pressure regulating mechanism.

[0016] The outer wall of the valve cylinder is sleeved with an adjusting cylinder, and the outer wall of the adjusting cylinder is arranged with through holes, which are respectively matched with the oil inlet, the first oil outlet and the second oil outlet, and the oil return port and the middle of the through holes are both provided with filters.

[0017] By adopting the above technical solution, the adjusting cylinder can rotate on the outer wall of the valve cylinder. The rotation of the adjusting cylinder drives the through hole to rotate synchronously. The through hole moves to produce a certain misalignment with the oil inlet, oil outlet No. 1 and oil outlet No. 2, so that the aperture through which the oil passes becomes smaller, thereby achieving the function of adjusting the flow rate of the oil passing through the solenoid valve. The impurities in the fluid entering the solenoid valve can be removed through the filter to prevent blockage and wear, thereby extending the service life of the solenoid valve.

[0018] The middle outer wall of the valve cylinder is provided with a limiting ring groove, the inner wall of the limiting ring groove is arranged with limiting grooves, and one side of the inner wall of the regulating cylinder is provided with a connecting ring, and the connecting ring is embedded in the limiting ring groove.

[0019] By adopting the above technical solution, the limiting ring groove plays a limiting role, and the connecting ring is embedded in the limiting ring groove so that the regulating cylinder can rotate on the outer wall of the valve cylinder.

[0020] The inner wall of the connecting ring is arranged with an active cavity, the inner wall of the active cavity is connected to a spring, one end of the spring away from the inner wall of the active cavity is connected to a top block, one end of the top block away from the spring passes through the active cavity and is embedded in the limiting groove, and the end of the top block is arc-shaped.

[0021] By adopting the above technical solution, the adjusting cylinder can drive the spring and the top block to rotate when the outer wall of the valve cylinder rotates. After the top block moves to the limiting groove, the elastic force of the spring causes the top block to be embedded in the limiting groove, thereby playing a limiting role, preventing the adjusting cylinder 34 from rotating arbitrarily on the outer wall of the valve cylinder 3.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the solenoid valve is powered off, the oil can flow through the oil inlet to the No. 1 connecting port and then be conducted into the connecting pipe, and then flow out from the oil return port after being conducted along the connecting pipe. The No. 1 and No. 2 oil outlets are in a closed state because the No. 1 valve block and the No. 2 valve block are in contact with each other, and the No. 2 connecting port is also in a closed state. When the No. 1 electromagnet is energized, a magnetic field is generated. This magnetic field interacts with the magnetic material in the iron core to generate a force, so that the iron core overcomes the force of the return spring and moves to one side of the No. 1 electromagnet in the direction of the No. 1 electromagnet. The movement of the iron core drives the valve core to move synchronously, and the movement of the valve core drives the No. 1 and No. 2 valve blocks to move synchronously. The No. 1 and No. 2 valve blocks make the No. 1 and No. 2 oil outlets open, and the guide port follows the movement of the No. 1 valve block to move to the No. 1 connecting port and connects with it, so that The oil flows from the oil inlet to the No. 1 oil outlet, and from the No. 2 oil outlet to the oil return port. When the No. 1 electromagnet is powered off and the No. 2 electromagnet is powered on, a new magnetic field is generated to move the iron core to the side close to the No. 2 electromagnet. The movement of the iron core drives the valve core to move synchronously. The movement of the valve core drives the No. 1 valve block and the No. 2 valve block to move synchronously, so that the outer wall of the No. 1 valve block abuts against the No. 1 connecting port, so that the No. 1 connecting port is closed. The No. 2 valve block and the No. 2 connecting port are misaligned so that the No. 2 connecting port and the No. 2 oil outlet are connected to each other, so that the oil flows from the oil inlet to the No. 1 oil outlet, and from the No. 2 oil outlet to the No. 2 connecting port, and then to the oil return port through the connecting pipe. The interaction between the No. 1 electromagnet and the No. 2 electromagnet realizes the two-way control of the solenoid valve. The integrated design reduces the overall volume of the solenoid valve, which is suitable for installation in a small space. 2. The No. 2 pressure sensor can detect the pressure between the extrusion plate and the iron core when the reset spring is reset. When the pressure decreases, the signal can be transmitted to the controller. The controller transmits the signal to the outside through the communication unit to remind the staff to make adjustments. The reset spring can be squeezed a certain distance through the pressure regulating mechanism so that its elastic force is maintained in a good state before stress relaxation, so as to improve the accuracy of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2 This is a schematic diagram of the internal structure of the main valve body of Example 1 of the present application; Figure 3 is a schematic diagram of the structure of the voltage regulating mechanism of Example 1 of the present application; Figure 4 is a schematic diagram of the valve core structure of Example 1 of the present application; Figure 5 It is a schematic diagram of the overall internal structure of Example 1 of the present application; Figure 6 This is a schematic diagram of the connection structure of the valve cylinder in different states of Example 1 of the present application; Figure 7 This is a schematic diagram of the connection structure between the connecting ring and the limiting ring groove of Example 1 of the present application; Explanation of reference numerals: 1. main valve body; 2. sealing connecting ring; 3. valve cylinder; 4. oil inlet; 5. No. 1 oil outlet; 6. No. 2 oil outlet; 7. oil return port; 8. connecting pipe; 9. No. 1 connecting port; 10. No. 2 connecting port; 11. valve core; 12. No. 1 valve block; 13. No. 2 valve block; 14. flow guide pipe; 15. flow guide port; 16. iron core; 17. coil; 18. sealing ring; 19. No. 1 electromagnet; 20. No. 2 electromagnet; 21. limit activity Plate; 22. Reset spring; 23. Pressure sensor; 24. Temperature sensor; 25. Controller; 26. Communication module; 27. Pressure regulating mechanism; 28. Extrusion plate; 29. ​​Threaded rod; 30. Threaded cylinder; 31. Limit rod; 32. Adjustment knob; 33. No. 2 pressure sensor; 34. Adjustment cylinder; 35. Through hole; 36. Top block; 37. Filter; 38. Limit ring groove; 39. Limit groove; 40. Connecting ring; 41. Movable cavity; 42. Spring. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1 - Attachment Figure 7 , further details of this application are given.

[0025] Embodiment 1: A two-way control solenoid valve comprises a main valve body 1, one side of the main valve body 1 is connected to a valve cylinder 3 through a sealing connection ring 2, an oil inlet 4 is arranged on one side of the middle of the valve cylinder 3, a No. 1 oil outlet 5 is arranged on the side of the oil inlet 4 away from the main valve body 1, a No. 2 oil outlet 6 is arranged on the side of the oil inlet 4 away from the No. 1 oil outlet 5, an oil return port 7 is arranged at the end of the valve cylinder 3, a connecting pipe 8 is connected to one side of the oil return port 7, an end of the connecting pipe 8 passes through and extends to a side of the inner wall of the valve cylinder 3 to be provided with a No. 1 connecting port 9, a No. 2 connecting port 10 is arranged on one side of the No. 1 connecting port 9, a valve core 11 is arranged inside the main valve body 1, the valve core 11 is movably connected to the main valve body 1, one end of the valve core 11 extends into the valve cylinder 3 and is connected to a No. 1 valve block 12, The outer wall of the No. 1 valve block 12 is in contact with the No. 1 oil outlet 5. A No. 2 valve block 13 is provided on one side of the No. 1 valve block 12. The outer wall of the No. 2 valve block 13 is in contact with the No. 2 oil outlet 6, and a protruding end of one side of the No. 2 valve block 13 is in contact with the No. 2 connecting port 10. The No. 1 connecting port 9 is connected with the No. 1 oil outlet 5. A guide pipe 14 is provided on one side of the No. 1 valve block 12. A guide port 15 is provided on the top of the guide pipe 14. The guide port 15 is in contact with the inner wall of the valve cylinder 3, and the guide port 15 corresponds to the No. 1 connecting port 9. The main valve body 1 plays a protective support role for the outer shell of the solenoid valve. When the solenoid valve is powered off, the oil can flow to the No. 1 connecting port 9 through the oil inlet 4 and then be conducted to the connecting pipe 8. Then, it flows out from the return oil port 7 after being conducted along the connecting pipe 8. The No. 1 oil outlet 5 and the No. 2 oil outlet 6 are in a closed state because the No. 1 valve block 12 and the No. 2 valve block 13 are abutted, and the No. 2 connecting port 10 is also in a closed state. When the No. 1 electromagnet 19 is energized, a magnetic field is generated. This magnetic field interacts with the magnetic material in the iron core 16 to generate a force, so that the iron core 16 overcomes the force of the return spring 22 and moves to the side of the No. 1 electromagnet 19 in the direction of the No. 1 electromagnet 19. The movement of the iron core 16 drives the valve core 11 to move synchronously. The movement of the valve core 11 drives the No. 1 valve block 12 and the No. 2 valve block 13 to move synchronously. The No. 1 valve block 12 and the No. 2 valve block 13 make the No. 1 oil outlet 5 and the No. 2 oil outlet 6 in an open state. At the same time, the guide port 15 follows the movement of the No. 1 valve block 12. The valve core 11 moves to the position of the No. 1 connecting port 9 and is connected thereto, so that the oil flows from the oil inlet 4 to the No. 1 oil outlet 5 and from the No. 2 oil outlet 6 to the oil return port 7. When the No. 1 electromagnet 19 is powered off and the No. 2 electromagnet 20 is powered on, a new magnetic field is generated to move the iron core 16 to the side close to the No. 2 electromagnet 20. The movement of the iron core 16 drives the valve core 11 to move synchronously. The movement of the valve core 11 drives the No. 1 valve block 12 and the No. 2 valve block 13 to move synchronously, so that the outer wall of the No. 1 valve block 12 abuts against the No. 1 connecting port 9, so that the No. 1 connecting port 9 is closed. The No. 2 valve block 13 is misaligned with the No. 2 connecting port 10, so that the No. 2 connecting port 10 and the No. 2 oil outlet 6 are connected to each other, so that the oil flows from the oil inlet 4 to the No. 1 oil outlet 5.From the No. 2 oil outlet 6 to the No. 2 connecting port 10, and then through the connecting pipe 8 to the oil return port 7, the interaction between the No. 1 electromagnet 19 and the No. 2 electromagnet 20 realizes the two-way control of the solenoid valve.

[0026] The end of the valve core 11 away from the valve cylinder 3 is connected to an iron core 16, and a coil 17 is arranged around the outer wall of the iron core 16. A sealing ring 18 is arranged on the inner wall of the connection between the main valve body 1 and the valve cylinder 3. The sealing ring 18 is sleeved on the outer wall of the valve core 11. A first electromagnet 19 is connected to the outer wall of one side of the main valve body 1. A second electromagnet 20 is arranged on one side of the first electromagnet 19. The end of the iron core 16 away from the valve core 11 is connected to a limited movable plate 21, and one end of the limited movable plate 21 is connected to a reset spring 22. The main purpose of the iron core 16 winding the coil 17 is to Generate a magnetic field. When the current of the No. 1 electromagnet 19 or the No. 2 electromagnet 20 passes through the coil 17, a magnetic field will be generated around the coil 17. This magnetic field will magnetize the iron core 16 to form a magnetic pole. According to the law of magnetic lines of force, magnetic force will be generated between the magnetic poles. This magnetic force will cause the valve core 11 to be attracted or repelled, thereby driving the iron core 16 to move, so as to control the switch of the solenoid valve. The sealing performance of the fluid is ensured by the sealing ring 18, and the reset spring 22 can ensure that the solenoid valve can automatically return to the preset state when the power is off.

[0027] A pressure sensor 23 is provided in the middle of the No. 1 valve block 12 and the No. 2 valve block 13. The pressure sensor 23 is connected to the inner wall of the valve cylinder 3. A temperature sensor 24 is provided on one side of the pressure sensor 23. A controller 25 is connected to the outer wall of the main valve body 1 away from the No. 1 electromagnet 19. A communication module 26 is provided on one side of the controller 25. The controller 25 and the communication module 26, the pressure sensor 23 and the temperature sensor 24 are all connected by wires. The temperature and pressure changes inside the solenoid valve can be monitored in real time through the pressure sensor 23 and the temperature sensor 24. The current of the electromagnetic coil 17 can be automatically adjusted through the controller 25 to achieve more precise fluid control.

[0028] A pressure regulating mechanism 27 is arranged at one end of the main valve body 1 away from the valve cylinder 3. The pressure regulating mechanism 27 includes an extrusion plate 28, a threaded rod 29, a threaded cylinder 30, a limit rod 31 and an adjusting knob 32. The extrusion plate 28 is embedded in the main valve body 1. One end of the return spring 22 away from the limit movable plate 21 is connected to the extrusion plate 28. One end of the extrusion plate 28 away from the return spring 22 is connected to the threaded rod 29. One end of the threaded rod 29 away from the extrusion plate 28 is threadedly connected to the threaded cylinder 30. One end of the threaded cylinder 30 away from the threaded rod 29 is directly connected to the inner wall of the main valve body 1 through a bearing. After long-term use, the stress of the reset spring 22 may decrease as the working time continues, resulting in stress relaxation. The No. 2 pressure sensor 33 can detect the pressure between the extrusion plate 28 and the iron core 16 pushed by the reset spring 22 when resetting. When the pressure reduction is detected, the signal can be transmitted to the controller 25. The controller 25 transmits the signal to the outside through the communication unit to remind the staff to make adjustments. The reset spring 22 can be squeezed a certain distance through the pressure regulating mechanism 27 so that its elastic force is maintained in a good state before stress relaxation, so as to improve the accuracy of the solenoid valve.

[0029] Limit rods 31 are connected to both sides of the extrusion plate 28. The ends of the limit rods 31 pass through the inner wall of the main valve body 1. An adjusting knob 32 is provided on the outer wall of one end of the main valve body 1. The adjusting end of the adjusting knob 32 is connected to the threaded barrel 30. The limit rod 31 plays a limiting role. By twisting the adjusting knob 32, the threaded barrel 30 is driven to rotate synchronously. The rotation of the threaded barrel 30 drives the threaded rod 29 to perform reciprocating translational motion. The translation of the threaded rod 29 drives the extrusion plate 28 to perform translational motion, thereby squeezing the return spring 22 for the convenience of adjusting it.

[0030] A No. 2 pressure sensor 33 is provided on one side of the extrusion plate 28. The No. 2 pressure sensor 33 is connected to the controller 25 through an electric wire. Twisting the adjusting knob 32 drives the threaded barrel 30 to rotate synchronously. The rotation of the threaded barrel 30 drives the threaded rod 29 to perform reciprocating translational motion. The translation of the threaded rod 29 drives the extrusion plate 28 to perform translational motion, thereby extruding the reset spring 22. The No. 2 pressure sensor 33 can detect the pressure between the extrusion plate 28 and the iron core 16 pushed by the reset spring 22 when resetting. When the pressure decreases, the signal can be transmitted to the controller 25 for adjustment through the pressure regulating mechanism 27.

[0031] An adjusting cylinder 34 is sleeved on the outer wall of the valve cylinder 3. Through holes 35 are arranged on the outer wall of the adjusting cylinder 34. The through holes 35 are matched with the oil inlet 4, the first oil outlet 5 and the second oil outlet 6 respectively. A filter screen 37 is provided in the middle of the oil return port 7 and the through hole 35. The adjusting cylinder 34 can rotate on the outer wall of the valve cylinder 3. The rotation of the adjusting cylinder 34 drives the through hole 35 to rotate synchronously. The through hole 35 moves to produce a certain misalignment with the oil inlet 4, the first oil outlet 5 and the second oil outlet 6, so that the aperture of the oil passing through becomes smaller, thereby realizing the function of adjusting the flow rate of the oil passing through the solenoid valve. The filter screen 37 can remove impurities in the fluid entering the solenoid valve to prevent blockage and wear, thereby extending the service life of the solenoid valve.

[0032] A limiting ring groove 38 is provided on the middle outer wall of the valve cylinder 3, and limiting grooves 39 are arranged on the inner wall of the limiting ring groove 38. A connecting ring 40 is provided on one side of the inner wall of the adjusting cylinder 34. The connecting ring 40 is embedded in the limiting ring groove 38. The limiting ring groove 38 plays a limiting role. By embedding the connecting ring 40 in the limiting ring groove 38, the adjusting cylinder 34 can rotate on the outer wall of the valve cylinder 3.

[0033] The inner wall of the connecting ring 40 is arranged with an active cavity 41, and the inner wall of the active cavity 41 is connected to a spring 42. The end of the spring 42 away from the inner wall of the active cavity 41 is connected to a top block 36. The end of the top block 36 away from the spring 42 passes through the active cavity 41 and is embedded in the limiting groove 39. The end of the top block 36 is in an arc shape. When the outer wall of the valve cylinder 3 rotates, the adjusting cylinder 34 can drive the spring 42 and the top block 36 to rotate. After the top block 36 moves to the limiting groove 39, the elastic force of the spring 42 makes the top block 36 embedded in the limiting groove 39, thereby playing a limiting role, preventing the adjusting cylinder 34 from rotating arbitrarily on the outer wall of the valve cylinder 3.

[0034] The implementation principle of the embodiment of the present application is as follows: first, the solenoid valve is installed in the oil tank. When the solenoid valve is powered off, the oil can flow through the oil inlet 4 to the No. 1 connecting port 9 and then be conducted into the connecting pipe 8. Then, it is conducted along the connecting pipe 8 and flows out from the oil return port 7. The No. 1 oil outlet 5 and the No. 2 oil outlet 6 are in a closed state because the No. 1 valve block 12 and the No. 2 valve block 13 are abutted. At the same time, the No. 2 connecting port 10 is also in a closed state. When the No. 1 electromagnet 19 is energized, a magnetic field is generated. This magnetic field interacts with the magnetic material in the iron core 16 to generate a force, so that the iron core 16 overcomes the force of the reset spring 22 and moves in the direction of the No. 1 electromagnet 19 to one side of the No. 1 electromagnet 19. The movement of the iron core 16 drives the valve core 11 to move synchronously. The valve core 11 moves, thereby driving the No. 1 valve block 12 and the No. 2 valve block 13 to move synchronously. The No. 1 valve block 12 and the No. 2 valve block 13 make the No. 1 oil outlet 5 and the No. 2 oil outlet 6 in an open state. At the same time, the guide port 15 follows the movement of the No. 1 valve block 12 and moves to the No. 1 connecting port 9 to be connected thereto, so that the oil flows from the oil inlet 4 to the No. 1 oil outlet 5, and from the No. 2 oil outlet 6 to the oil return port 7. When the No. 1 electromagnet 19 is powered off and the No. 2 electromagnet 20 is powered on, a new magnetic field is generated to move the iron core 16 to the side close to the No. 2 electromagnet 20. The movement of the iron core 16 drives the valve core 11 to move synchronously. The movement of the valve core 11 drives the No. 1 valve block 12 and the No. 2 valve block 13 to move synchronously, so that the No. 1 valve block 12 The outer wall of is in contact with the No. 1 connecting port 9, so that the No. 1 connecting port 9 is closed, the No. 2 valve block 13 is misaligned with the No. 2 connecting port 10, so that the No. 2 connecting port 10 and the No. 2 oil outlet 6 are connected to each other, so that the oil flows from the oil inlet 4 to the No. 1 oil outlet 5, and from the No. 2 oil outlet 6 to the No. 2 connecting port 10, and then to the return oil port 7 through the connecting pipe 8. The interaction between the No. 1 electromagnet 19 and the No. 2 electromagnet 20 realizes the two-way control of the solenoid valve. The main purpose of the iron core 16 wrapped around the coil 17 is to generate a magnetic field. When the current of the No. 1 electromagnet 19 or the No. 2 electromagnet 20 passes through the coil 17, a magnetic field will be generated around the coil 17. This magnetic field will magnetize the iron core 16 to form a magnetic pole. According to the law of magnetic lines of force, the magnetic A magnetic force will be generated between the poles, which will cause the valve core 11 to be attracted or repelled, thereby driving the iron core 16 to move, so as to control the switch of the solenoid valve. The sealing performance of the fluid is ensured by the sealing ring 18, and the reset spring 22 can ensure that the solenoid valve can automatically return to the preset state when the power is off. After long-term use, the stress of the reset spring 22 in the solenoid valve may decrease with the continuation of working time, thereby causing stress relaxation. The No. 2 pressure sensor 33 can detect the pressure between the extrusion plate 28 and the iron core 16 pushed by the reset spring 22 when resetting. When the pressure decreases, the signal can be transmitted to the controller 25. The controller 25 transmits the signal to the outside through the communication unit to remind the staff to make adjustments.The reset spring 22 can be squeezed for a certain distance by the pressure regulating mechanism 27 so that its elastic force is kept in a good state before stress relaxation, so as to improve the accuracy of the solenoid valve. The pressure between the reset spring 22 pushing the squeeze plate 28 and the iron core 16 when resetting can be detected by the No. 2 pressure sensor 33. When the pressure decreases, the signal can be transmitted to the controller 25 so as to adjust it through the pressure regulating mechanism 27. The regulating cylinder 34 can rotate on the outer wall of the valve cylinder 3. The rotation of the regulating cylinder 34 drives the through hole 35 to rotate synchronously. The through hole 35 moves to align with the oil inlet 4 and the No. 1 oil outlet. There is a certain misalignment between the port 5 and the second oil outlet 6, so that the aperture through which the oil passes becomes smaller, thereby realizing the function of adjusting the flow of the oil passing through the solenoid valve. The filter 37 can remove impurities in the fluid entering the solenoid valve to prevent blockage and wear, and extend the service life of the solenoid valve. When the regulating cylinder 34 rotates on the outer wall of the valve cylinder 3, the spring 42 and the top block 36 can be driven to rotate. After the top block 36 moves to the limit groove 39, the elastic force of the spring 42 makes the top block 36 embedded in the limit groove 39, thereby playing a limiting role, preventing the regulating cylinder 34 from rotating arbitrarily on the outer wall of the valve cylinder 3.

[0035] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A two-way control solenoid valve, comprising a main valve body (1), characterized in that: One side of the main valve body (1) is connected to a valve cylinder (3) via a sealing connection ring (2); an oil inlet (4) is arranged on one side of the middle of the valve cylinder (3); a first oil outlet (5) is arranged on the side of the oil inlet (4) away from the main valve body (1); a second oil outlet (6) is arranged on the side of the oil inlet (4) away from the first oil outlet (5); an oil return port (7) is arranged at the end of the valve cylinder (3); a connecting pipe (8) is connected to one side of the oil return port (7); a first connecting port (9) is arranged at the end of the connecting pipe (8) and extends to the inner wall of the valve cylinder (3); a second connecting port (10) is arranged on one side of the first connecting port (9); a valve core (11) is arranged inside the main valve body (1); a movable portion is provided between the valve core (11) and the main valve body (1). The valve core (11) is dynamically connected, one end of the valve core (11) extends into the valve cylinder (3) and is connected to a valve block (12); the outer wall of the valve block (12) is in contact with the oil outlet (5); a valve block (13) is provided on one side of the valve block (12); the outer wall of the valve block (13) is in contact with the oil outlet (6); a protruding end of one side of the valve block (13) is in contact with the connecting port (10); the connecting port (9) is connected to the oil outlet (5); a guide pipe (14) is provided on one side of the valve block (12); a guide port (15) is provided on the top of the guide pipe (14); the guide port (15) is in contact with the inner wall of the valve cylinder (3); and the guide port (15) corresponds to the connecting port (9).

2. A two-way control solenoid valve according to claim 1, characterized in that: An end of the valve core (11) away from the valve cylinder (3) is connected to an iron core (16), and a coil (17) is arranged around the outer wall of the iron core (16). A sealing ring (18) is arranged on the inner wall of the connection between the main valve body (1) and the valve cylinder (3), and the sealing ring (18) is sleeved on the outer wall of the valve core (11). A first electromagnet (19) is connected to the outer wall of one side of the main valve body (1), and a second electromagnet (20) is arranged on one side of the first electromagnet (19). An end of the iron core (16) away from the valve core (11) is connected to a limit movable plate (21), and one end of the limit movable plate (21) is connected to a return spring (22).

3. A two-way control solenoid valve according to claim 2, characterized in that: A pressure sensor (23) is provided in the middle of the No. 1 valve block (12) and the No. 2 valve block (13), the pressure sensor (23) is connected to the inner wall of the valve cylinder (3), a temperature sensor (24) is provided on one side of the pressure sensor (23), a controller (25) is connected to the outer wall of the main valve body (1) away from the No. 1 electromagnet (19), a communication module (26) is provided on one side of the controller (25), and the controller (25) is connected to the communication module (26), the pressure sensor (23), and the temperature sensor (24) through electric wires.

4. A two-way control solenoid valve according to claim 2, characterized in that: A pressure regulating mechanism (27) is provided at one end of the main valve body (1) away from the valve cylinder (3), and the pressure regulating mechanism (27) comprises an extrusion plate (28), a threaded rod (29), a threaded cylinder (30), a limit rod (31) and an adjusting knob (32). The extrusion plate (28) is embedded in the main valve body (1), and one end of the return spring (22) away from the limit movable plate (21) is connected to the extrusion plate (28), and one end of the extrusion plate (28) away from the return spring (22) is connected to the threaded rod (29), and one end of the threaded rod (29) away from the extrusion plate (28) is threadedly connected to the threaded cylinder (30), and one end of the threaded cylinder (30) away from the threaded rod (29) is directly connected to the inner wall of the main valve body (1) through a bearing.

5. A two-way control solenoid valve according to claim 4, characterized in that: Limit rods (31) are connected to both sides of the extrusion plate (28), the ends of the limit rods (31) penetrate the inner wall of the main valve body (1), an adjusting knob (32) is provided on the outer wall of one end of the main valve body (1), and the adjusting end of the adjusting knob (32) is connected to the threaded barrel (30).

6. A two-way control solenoid valve according to claim 5, characterized in that: A second pressure sensor (33) is provided on one side of the extrusion plate (28). The second pressure sensor (33) is connected to the controller (25) via an electric wire. The adjusting knob (32) is twisted to rotate and drive the threaded barrel (30) to rotate synchronously. The rotation of the threaded barrel (30) drives the threaded rod (29) to perform reciprocating translational motion. The translation of the threaded rod (29) drives the extrusion plate (28) to perform translational motion, thereby extruding the return spring (22).

7. A two-way control solenoid valve according to claim 1, characterized in that: The outer wall of the valve cylinder (3) is sleeved with an adjusting cylinder (34), and the outer wall of the adjusting cylinder (34) is provided with through holes (35) arranged in an array, the through holes (35) respectively matching the oil inlet (4), the first oil outlet (5) and the second oil outlet (6), and the oil return port (7) and the middle of the through holes (35) are both provided with filter screens (37).

8. A two-way control solenoid valve according to claim 7, characterized in that: A limiting ring groove (38) is provided on the middle outer wall of the valve cylinder (3), and limiting grooves (39) are arranged on the inner wall of the limiting ring groove (38). A connecting ring (40) is provided on one side of the inner wall of the regulating cylinder (34), and the connecting ring (40) is embedded in the limiting ring groove (38).

9. A two-way control solenoid valve according to claim 8, characterized in that: The inner wall of the connecting ring (40) is provided with movable cavities (41), the inner wall of the movable cavity (41) is connected to a spring (42), one end of the spring (42) away from the inner wall of the movable cavity (41) is connected to a top block (36), one end of the top block (36) away from the spring (42) passes through the movable cavity (41) and is embedded in the limiting groove (39), and the end of the top block (36) is in the shape of an arc surface.

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