Self-reciprocating high-frequency valve

Abstract

The invention discloses a self-reciprocating high-frequency valve, which belongs to the technical field of valves and comprises an oil tank, a valve seat is arranged at one end of the oil tank, a connecting piece detachably connected with the oil tank is arranged on the valve seat, a reciprocating motion rod body is slidably arranged in the valve seat, an oil pump is arranged in the oil tank, and an overflow valve is arranged at an oil outlet of the oil pump. An oil outlet of the oil pump is connected with an oil conveying pipe, one end, away from the oil tank, of the oil conveying pipe is connected with the valve seat, a first electric valve is arranged on the oil conveying pipe, and a first oil return pipe is fixed to the peripheral face of the oil conveying pipe and located at one end, close to the valve seat, of the first electric valve. A second electric valve is arranged on the first oil return pipe, a motor is arranged at the other end of the oil tank, an output shaft of the motor is connected with the oil pump, and a reset piece used for enabling the reciprocating motion rod body to reset is arranged on the valve seat. The self-reciprocating high-frequency valve has the effect of improving the use efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a self-reciprocating high-frequency valve. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shutoff valves to the various valves used in extremely complex automatic control systems. Valves can be used to control the flow of various types of fluids, such as air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media.

[0003] In the related art, a Chinese invention patent with publication number CN116181710A discloses a self-reciprocating high-frequency valve, including a reciprocating rod body, a breathable guide sleeve, a hydraulic cylinder, a return spring 1, a valve seat, a sliding valve core, a return spring 2, a sliding valve core adjustment screw, a relief valve, an oil pump, a motor, an oil tank, an oil supply channel, an oil return channel and a working chamber; the reciprocating rod body is arranged in the valve seat, the return spring 1 is arranged on the reciprocating rod body, the breathable guide sleeve is connected to the reciprocating rod body, and the hydraulic cylinder The oil pump is arranged at the rear of the oil pump and is connected with the oil pump; the oil tank is arranged outside the oil pump and is connected with the oil pump; an oil supply channel and an oil return channel are arranged on the oil tank; a working chamber is arranged in the valve seat; the oil supply channel and the oil return channel are respectively connected with the working chamber.

[0004] In the above-mentioned related technology, since the sliding valve core is driven by the return spring 2, the elastic performance of the return spring 2 will gradually decrease when the return spring 2 is used for a long time, so that the high-pressure oil will push the sliding valve core upward when it does not push the reciprocating rod to move to the left, so that the return oil channel is opened, thereby reducing the use efficiency of the self-reciprocating high-frequency valve. Summary of the invention

[0005] In order to improve the problem that when high-pressure oil does not push the reciprocating rod to move leftward, the sliding valve core is pushed upward to open the return oil channel, thereby reducing the use efficiency of the self-reciprocating high-frequency valve, the present application provides a self-reciprocating high-frequency valve.

[0006] The self-reciprocating high-frequency valve provided in this application adopts the following technical solution: , The oil pump extends into the oil pump end face, and the oil pump end face is provided with an oil pump cap, and the oil pump cap is provided with an oil pump cap, and the oil pump cap, the oil pump cap being provided with an oil pump cap. A motor is provided at one end, and an output shaft of the motor is connected to the oil pump, a plurality of circular holes are provided on the outer circumference of the reciprocating rod body, a moving column is slidably provided in the circular hole, a spring 2 is fixed to the end surface of the moving column close to the central axis of the reciprocating rod body, an end of the spring 2 away from the moving column is fixed to the inner wall of the circular hole, a semicircular ball is fixed to the end of the moving column away from the spring 2, a plurality of semicircular grooves are provided on the inner circumference of the valve seat, the outer circumference of the semicircular ball is fitted with the inner circumference of the semicircular groove, a driving block is fixed in the semicircular groove, the bottom end of the driving block is circular, a resetting member for resetting the reciprocating rod body is provided on the valve seat, and a control unit for controlling the opening and closing of the electric valve 1 and the electric valve 2 is provided on the oil tank.

[0007] By adopting the above technical solution, when in use, the electric valve 1 is in the open state and the electric valve 2 is in the closed state, then the motor is started, the motor drives the oil pump to start outputting high-pressure oil, the oil pump transports the oil in the oil tank to the oil pipe through the overflow valve, the oil in the oil pipe is transported to the valve seat through the electric valve 1, so that the high-pressure oil pushes the reciprocating rod body to move in the direction away from the oil tank, when the reciprocating rod body moves to the end point, the control unit controls the electric valve 1 to close, controls the electric valve 2 to open, and at the same time the drive block drives the semicircular ball to move into the circular hole, so that a gap is formed between the reciprocating rod body and the inner circumference of the semicircular groove, so that the oil passes through the semicircular groove. The oil pump runs out of the circular groove, and the pressure on the side of the reciprocating rod of the valve seat close to the motor is relieved, thereby reducing the high pressure in the oil pipeline and the possibility of damage to the oil pipeline. At this time, the reciprocating rod moves towards the direction close to the oil tank under the action of the reset member, so that the reciprocating rod pushes the oil in the valve seat, and the oil in the valve seat is transported to the oil tank through the return oil pipe 1. When the reciprocating rod returns to the terminal, the control unit controls the electric valve 1 to open and the electric valve 2 to close, so that the reciprocating rod extends under the action of the high-pressure oil, and the delivery and recovery of the high-pressure oil are controlled by the control unit, thereby improving the use efficiency of the self-reciprocating high-frequency valve.

[0008] Preferably, the reciprocating rod body includes a moving block slidably arranged in the valve seat and a moving rod fixed on the side of the moving block away from the oil tank, the circular hole is opened on the outer peripheral surface of the moving block, one end of the moving rod away from the moving block passes through the side of the valve seat away from the oil tank, the moving rod is slidably connected to the valve seat, and the reset member includes a spring 1 sleeved on the circumference of the moving rod, one end of the spring 1 abuts against the side of the moving block away from the oil tank, and the other end of the spring 1 abuts against the inner side surface of the valve seat.

[0009] By adopting the above technical solution, when the reciprocating rod body moves to the end point in the direction away from the oil tank under the action of high-pressure oil, the control unit controls electric valve one to close and controls electric valve two to open. At this time, the reciprocating rod body moves toward the direction close to the oil tank under the elastic force of spring one, so that spring one drives the reciprocating rod body to move toward the direction close to the oil tank, so that the reciprocating rod body moves to the initial position.

[0010] Preferably, the control unit includes a controller arranged on the oil tank, and a pressure transmitter is arranged on the outer peripheral surface of the oil pipeline, and the pressure transmitter is located on the side of the return oil pipe away from the electric valve one, and the output end of the pressure transmitter is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the control ends of the electric valve one and the electric valve two, respectively, so as to control the opening and closing of the electric valve one and the electric valve two in response to the pressure signal of the pressure transmitter.

[0011] By adopting the above technical solution, when in use, electric valve 1 is in an open state and electric valve 2 is in a closed state, then the motor is started, the motor drives the oil pump to start outputting high-pressure oil, the oil pump transports the oil in the oil tank to the oil pipe through the overflow valve, the oil pipe transports the oil to the valve seat, so that the high-pressure oil pushes the reciprocating rod body to move in the direction away from the oil tank, when the reciprocating rod body moves to the end point, the oil in the oil pipe continues to be transported to the valve seat, so that the pressure in the oil pipe continues to increase, the pressure transmitter transmits the detected pressure signal value to the controller, the controller compares the received signal with the set signal, when the signal received by the controller is greater than the set maximum pressure signal value, the controller controls electric valve 1 to close and controls the electric valve When the oil return pipe 1 is opened, the delivery pipe cannot deliver high-pressure oil to the valve seat. At this time, the reciprocating rod moves towards the oil tank under the action of spring 1, so that the reciprocating rod pushes the oil in the valve seat, and the oil in the valve seat is delivered to the oil tank through the return oil pipe 1. When the reciprocating rod returns to the terminal, the pressure in the oil delivery pipe detected by the transformer gradually decreases, and the detected pressure signal is transmitted to the controller. The controller compares the received pressure signal with the set pressure signal. When the pressure signal received by the controller is less than the set minimum pressure signal, the controller controls the electric valve 1 to open and the electric valve 2 to close, so that the reciprocating rod extends under the action of high-pressure oil, thereby realizing the reciprocating linear motion of the reciprocating rod.

[0012] Preferably, a return oil pipe 2 is fixed to the outer peripheral surface of the oil pipeline, and the return oil pipe 2 is located on the side of the electric valve 1 away from the return oil pipe 1. An electric valve 3 is arranged on the return oil pipe 2, and the output end of the controller is also connected to the control end of the electric valve 3 to control the opening and closing of the electric valve 3 in response to the pressure signal of the pressure transmitter.

[0013] By adopting the above technical scheme, when the controller controls electric valve one to close and controls electric valve two to open according to the pressure signal detected by the pressure transmitter, the controller also controls electric valve three to open, so that the oil in the valve seat is transported to the oil tank through the return oil pipe one, and the oil transported to the oil pipe by the oil pump is transported back to the oil tank through the return oil pipe two, thereby reducing the possibility of damage to the oil pump; when the controller controls electric valve one to open according to the pressure signal detected by the pressure transmitter, the controller controls electric valve two and electric valve three to close, thereby facilitating the oil pump to transport high-pressure oil to the valve seat through the delivery pipe.

[0014] Preferably, a connecting pipe is fixed to the outer peripheral surface of the valve seat, the connecting pipe is connected to the inside of the valve seat, the connecting pipe is located on the side of the moving block away from the spring, the bottom end of the connecting pipe is sleeved with a connecting ring, the connecting ring is rotatably connected to the connecting pipe, the end of the oil pipe away from the oil tank is inserted into the connecting ring, and the oil pipe is threadedly connected to the connecting ring.

[0015] By adopting the above technical solution, one end of the oil pipeline close to the valve seat is inserted into the connecting ring, and the connecting ring is rotated to move the oil pipeline toward the connecting pipe, so that the end faces of the connecting pipe and the oil pipeline close to each other abut against each other, thereby tightly connecting the oil pipeline and the connecting pipe, making it easier for the oil in the oil pipeline to be transported to the valve seat through the connecting pipe.

[0016] Preferably, an annular groove is provided on the inner circumferential surface of the connecting pipe, a plug-in ring is fixed to the end surface of the oil delivery pipe close to the valve seat, the plug-in ring is inserted in the annular groove, a rubber ring is fixed to the inner side surface of the annular groove close to the valve seat, and the plug-in ring abuts against the side surfaces of the rubber ring close to each other.

[0017] By adopting the above technical solution, when the oil pipeline is inserted into the connecting ring, the connecting ring is rotated to move the oil pipeline toward the connecting pipe, so that the plug-in ring is inserted into the annular groove, and the sides of the plug-in ring and the rubber ring that are close to each other are abutted, thereby reducing the possibility of oil leakage at the connection between the connecting pipe and the oil pipeline.

[0018] Preferably, a limiting ring is fixed to the inner circumferential surface of the valve seat, and the limiting ring is located between the moving block and the connecting pipe.

[0019] By adopting the above technical solution, a limit ring is set on the inner circumference of the valve seat. When the moving block moves toward the oil tank under the elastic force of spring 1, the limit ring limits the moving block, thereby reducing the possibility of the moving block blocking the connecting pipe.

[0020] Preferably, the connecting member includes a connecting plate fixed on the outer peripheral surface of the valve seat, a plurality of through holes are opened on the side of the connecting plate, a plurality of threaded holes are opened on the side of the oil tank close to the connecting plate, the plurality of threaded holes correspond to the plurality of through holes, bolts are inserted into the through holes, the bolts pass through the through holes and are inserted into the threaded holes, the bolts are threadedly connected to the inner walls of the threaded holes, and the heads of the bolts abut against the side of the connecting plate away from the oil tank.

[0021] By adopting the above technical solution, the valve seat is abutted against the side of the oil tank away from the motor, the through hole on the connecting plate is aligned with the threaded hole on the side of the oil tank, and then the bolt is inserted into the threaded hole through the through hole, and the bolt is rotated so that the head of the bolt abuts against the side of the connecting plate away from the oil tank, thereby fixing the valve seat and the oil tank.

[0022] Preferably, the outer peripheral surface of the oil tank is provided with a thermal insulation layer.

[0023] By adopting the above technical solution, an insulation layer is provided on the outer peripheral surface of the oil tank, so that the oil in the oil tank can be kept warm in winter, the possibility of cooling and solidifying the oil can be reduced, and the flow of the oil can be facilitated.

[0024] Preferably, an oil return pipe three is fixed to the outer peripheral surface of the valve seat, the oil return pipe three is connected to the valve seat, the top of the oil return pipe three is located on the side of the moving block away from the oil tank, the end of the oil return pipe three away from the valve seat is connected to the oil pipeline, and a one-way valve is provided on the oil return pipe three, and the oil in the valve seat can flow into the oil pipeline through the one-way valve.

[0025] By adopting the above technical solution, an oil return pipe three is set on the valve seat. When the moving block drives the moving rod to move in a direction away from the motor, the oil released from the valve seat flows into the oil pipeline through the oil return pipe three, thereby reducing the possibility that the oil released from the valve seat hinders the movement of the moving block.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When in use, the electric valve 1 is in the open state, and the electric valve 2 is in the closed state. Then the motor is started, and the motor drives the oil pump to start outputting high-pressure oil. The oil pump transports the oil in the oil tank to the oil pipe through the overflow valve. The oil in the oil pipe is transported to the valve seat through the electric valve 1, so that the high-pressure oil pushes the reciprocating rod body to move in the direction away from the oil tank. When the reciprocating rod body moves to the end point, the control unit controls the electric valve 1 to close and controls the electric valve 2 to open. At the same time, the drive block drives the semicircular ball to move into the circular hole, so that a gap is formed between the reciprocating rod body and the inner circumference of the semicircular groove, so that the oil flows out through the semicircular groove. The pressure is released on the side of the valve seat reciprocating rod body close to the motor to reduce the possibility of damage to the oil pipeline caused by the high pressure in the oil pipeline; at this time, the reciprocating rod body moves towards the direction close to the oil tank under the action of the reset member, so that the reciprocating rod body pushes the oil in the valve seat, and the oil in the valve seat is transported to the oil tank through the return oil pipe 1. When the reciprocating rod body returns to the terminal, the control unit controls the electric valve 1 to open and the electric valve 2 to close, so that the reciprocating rod body extends under the action of the high-pressure oil, so that the delivery and withdrawal of the high-pressure oil are controlled by the control unit, thereby improving the use efficiency of the self-reciprocating high-frequency valve; 2. When the controller controls the electric valve 1 to close and controls the electric valve 2 to open according to the pressure signal detected by the pressure transmitter, the controller also controls the electric valve 3 to open, so that the oil in the valve seat is transported to the oil tank through the return oil pipe 1, and the oil transported to the oil pipe by the oil pump is transported back to the oil tank through the return oil pipe 2, thereby reducing the possibility of damage to the oil pump; when the controller controls the electric valve 1 to open according to the pressure signal detected by the pressure transmitter, the controller controls the electric valve 2 and the electric valve 3 to close, thereby facilitating the oil pump to transport the high-pressure oil to the valve seat through the delivery pipe; 3. Insert the end of the oil pipeline close to the valve seat into the connecting ring, rotate the connecting ring to move the oil pipeline toward the connecting pipe, and make the end faces of the connecting pipe and the oil pipeline close to each other abut against each other, so that the oil pipeline and the connecting pipe are tightly connected, which facilitates the oil in the oil pipeline to be transported to the valve seat through the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is an exploded schematic diagram of the valve seat and the oil tank in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view of the oil tank in the embodiment of the present application.

[0030] Figure 4 yes Figure 3 A magnified schematic diagram of center A.

[0031] Figure 5 It is a cross-sectional view of the moving block in the embodiment of the present application.

[0032] 1. Oil tank; 2. Insulation layer; 3. Valve seat; 4. Connecting plate; 5. Through hole; 6. Threaded hole; 7. Bolt; 8. Reciprocating rod; 9. Moving block; 10. Moving rod; 11. Limiting ring; 12. Connecting pipe; 13. Connecting ring; 14. Annular groove; 15. Rubber ring; 16. Spring one; 17. Oil pump; 18. Motor; 19. Overflow valve; 20. Oil pipeline; 21. Plug-in ring; 22. Electric valve one; 23. Pressure transmitter; 24. Controller; 25. Oil return pipe one; 26. Electric valve two; 27. Oil return pipe two; 28. Electric valve three; 29. ​​Round hole; 30. Moving column; 31. Spring two; 32. Semicircular ball; 33. Semicircular groove; 34. Driving block; 35. Oil return pipe three; 36. One-way valve; 37. Block; 38. Oil drain hole. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The embodiment of the present application discloses a self-reciprocating high-frequency valve.

[0035] Reference Figure 1 and Figure 2A self-reciprocating high-frequency valve includes an oil tank 1 and a valve seat 2 arranged at one end of the oil tank 1, and an insulation layer 11 is fixed to the outer peripheral surface of the oil tank 1. A connecting disk 21 is fixed to the outer peripheral surface of the valve seat 2, and the side of the connecting disk 2 close to the oil tank 1 is coplanar with the end surface of the valve seat 2 close to the oil tank 1. A plurality of through holes 22 are provided on the outer peripheral surface of the connecting disk 21, and the plurality of through holes 22 are arranged at equal intervals along the circumference of the connecting disk 21. A plurality of threaded holes 23 are provided on the side of the oil tank 1 close to the valve seat 2, and the plurality of threaded holes 23 correspond to the plurality of through holes 22. Bolts 24 are inserted into the plurality of through holes 22, and the bolts 24 pass through the through holes 22 and are inserted into the threaded holes 23, and the heads of the bolts 24 abut against the side of the connecting disk 21 away from the oil tank 1.

[0036] Reference Figure 1 and Figure 3 A reciprocating rod body 3 is arranged in the valve seat 2. The reciprocating rod body 3 includes a moving block 31 slidably arranged in the valve seat 2. A moving rod 32 is fixed to the side of the moving block 31 away from the oil tank 1. The side of the moving rod 32 away from the oil tank 1 passes through the side of the valve seat 2 away from the oil tank 1, and the moving rod 32 is slidably connected with the valve seat 2. A spring 1 38 is sleeved on the outer circumference of the moving rod 32. One end of the spring 1 38 abuts against the side of the moving block 31 away from the oil tank 1, and the other end of the spring 1 abuts against the inner side of the valve seat 2. A limiting ring 33 is fixed to the inner circumference of the valve seat 2. The limiting ring 33 is located on the side of the moving block 31 close to the oil tank 1, and the sides of the moving block 31 and the limiting ring 33 close to each other abut.

[0037] Reference Figure 3 and Figure 4 An oil pump 4 is fixed to the inner side of the oil tank 1 away from the valve seat 2, and a motor 41 is fixed to the side of the oil tank 1 away from the valve seat 2, and the output shaft of the motor 41 is fixedly connected to the oil pump 4. An overflow valve 42 is fixedly connected to the oil outlet of the oil pump 4, and an oil pipe 43 is fixedly connected to the oil outlet of the oil pump 4, and one end of the oil pipe 43 away from the oil pump 4 passes through the outer peripheral surface of the oil tank 1 and the insulation layer 11. A connecting pipe 34 is fixed to the outer peripheral surface of the valve seat 2, and the connecting pipe 34 is connected to the inside of the valve seat 2. The connecting pipe 34 is located on the side of the limit ring 33 away from the moving block 31. A connecting ring 35 is sleeved on the bottom end of the connecting pipe 34, and the connecting ring 35 is rotatably connected to the connecting pipe 34. One end of the oil pipe 43 away from the oil tank 1 is inserted into the connecting pipe 34, and the connecting ring 35 is threadedly connected to the oil pipe 43. An annular groove 36 is formed on the inner circumferential surface of the connecting pipe 34, and the annular groove 36 passes through the bottom surface of the connecting pipe 34. A rubber ring 37 is fixed to the inner top surface of the annular groove 36. A plug-in ring 44 is fixed to the end surface of the oil delivery pipe 43 away from the oil tank 1. The plug-in ring 44 is inserted in the annular groove 36, and the plug-in ring 44 and the rubber ring 37 are in contact with each other.

[0038] Reference Figure 1 and Figure 3The outer circumference of the oil delivery pipe 43 is fixed with an electric valve 45 and a pressure transmitter 46. The pressure transmitter 46 is used to detect the pressure in the oil delivery pipe 43. The pressure transmitter 46 is located on the side of the electric valve 45 close to the valve seat 2. The outer circumference of the oil delivery pipe 43 is fixed with a return oil pipe 5. The return oil pipe 5 is located between the pressure transmitter 46 and the electric valve 45. The end of the return oil pipe 5 away from the oil delivery pipe 43 passes through the insulation layer 11 and is fixedly connected to the outer circumference of the oil tank 1. The return oil pipe 5 is connected to the oil tank 1. The outer circumference of the return oil pipe 5 is fixed with an electric valve 2 51. A return oil pipe 2 52 is fixed to the outer circumference of the oil delivery pipe 43. The return oil pipe 2 52 is located on the side of the electric valve 1 45 away from the pressure transmitter 46. One end of the return oil pipe 2 52 away from the oil delivery pipe 43 passes through the insulation layer 11 and is fixedly connected to the outer circumference of the oil tank 1. The return oil pipe 2 52 is in communication with the oil tank 1. The electric valve 3 53 is fixed to the outer circumference of the return oil pipe 2 52. A controller 47 is fixed to the outer circumference of the oil tank 1. The output end of the pressure transmitter 46 is electrically connected to the input end of the controller 47. The output end of the controller 47 is electrically connected to the control ends of the electric valve 1 45, the electric valve 2 51 and the electric valve 3 53, respectively, to respond to the pressure signal detected by the pressure transmitter 46 and control the opening and closing of the electric valve 1 45, the electric valve 2 51 and the electric valve 3 53.

[0039] Reference Figure 1 , Figure 3 and Figure 5 The outer circumference of the moving block 31 is provided with a plurality of circular holes 6, and the plurality of circular holes 6 are arranged at equal intervals along the circumference of the moving block 31. A moving column 61 is slidably arranged in the circular hole 6, and a spring 2 62 is fixed to the end surface of the moving column 61 close to the central axis of the moving block 31, and one end of the spring 2 62 away from the moving column 61 is fixed to the inner wall of the circular hole 6 close to the central axis of the moving block 31. A semicircular ball 63 is fixed to the end of the moving column 61 away from the spring 2 62, and a plurality of semicircular grooves 64 are provided on the inner circumference of the valve seat 2, and the outer circumference of the semicircular ball 63 is fitted with the inner circumference of the semicircular groove 64. A driving block 65 is fixed in the semicircular groove 64, and the bottom end of the driving block 65 is circular, and the driving block 65 can drive the semicircular ball 63 to move toward the circular hole 6. Two blocks 68 are fixed to the inner circumference of the valve seat 2. The two blocks 68 are symmetrically arranged along the central axis of the valve seat 2. The side of the block 68 close to the oil tank 1 can abut against the side of the moving block 31 away from the oil tank 1. A return oil pipe 3 66 is fixed to the outer circumference of the valve seat 2. An oil drain hole 69 is provided on the outer circumference of the valve seat 2. The top of the return oil pipe 3 66 is inserted into the through hole. The top of the return oil pipe 3 66 is located on the side of the moving block 31 away from the oil tank 1. The end of the return oil pipe 3 66 away from the valve seat 2 is connected to the oil pipeline 43. A one-way valve 67 is provided on the return oil pipe 3 66. The oil in the valve seat 2 can flow into the oil pipeline 43 through the one-way valve 67.

[0040] The implementation principle of a self-reciprocating high-frequency valve in the embodiment of the present application is: when in use, the electric valve 1 45 is in an open state, and the electric valve 2 51 and the electric valve 3 53 are in a closed state. Then start the motor 41, so that the motor 41 drives the oil pump 4 to rotate and work, the oil pump 4 draws the oil in the oil tank 1 through the overflow valve 42 into the oil pipe 43, the oil pipe 43 transports the oil to the connecting pipe 34, and the connecting pipe 34 transports the oil to the valve seat 2, so that the oil pushes the reciprocating rod body 3 to move in the direction away from the oil tank 1, so that the reciprocating rod body 3 extends out of the valve seat 2. When the reciprocating rod body 3 moves to the end point, the inside of the valve seat 2 is filled with oil, and the pressure in the oil pipe 43 gradually increases. The pressure transmitter 46 transmits the detected pressure signal to the controller 47, and the controller 47 compares the received pressure signal with the set pressure signal value. When the pressure signal value received by the controller 47 is greater than the set maximum pressure signal, the controller 47 controls the electric valve 1 45 to close, and at the same time controls the electric valve 2 51 and the electric valve 3 53 to open, so that the oil pipe 43 stops transporting oil to the valve seat 2. At this time The pressure at one end of the oil delivery pipe 43 close to the valve seat 2 gradually decreases, and the reciprocating rod body 3 moves towards the direction close to the oil tank 1 under the elastic force of the spring 1 38, so that the reciprocating rod body 3 pushes the oil in the valve seat 2, and the oil in the valve seat 2 is delivered to the oil tank 1 through the return oil pipe 1 5, and at the same time, the oil pumped out of the oil pump 4 is delivered to the oil tank 1 through the return oil pipe 2 52. When the pressure signal delivered by the pressure transmitter 46 received by the controller 47 is lower than the set minimum pressure signal, the controller 47 controls the electric valve 1 45 to open, and at the same time controls the electric valve 2 51 and the electric valve 3 53 to close, so that the oil pumped out of the oil pump 4 is delivered to the valve seat 2 through the oil delivery pipe 43, and the oil pushes the reciprocating rod body 3 to extend out of the valve seat 2, and so on and so forth, thereby realizing the reciprocating movement of the reciprocating rod body 3, so that the delivery and recovery of the high-pressure oil in the oil tank 1 are controlled by the controller 47, thereby improving the use efficiency of the self-reciprocating high-frequency valve.

[0041] The above are all 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 self-reciprocating high-frequency valve, characterized in that: The invention comprises an oil tank (1), wherein a valve seat (2) is arranged at one end of the oil tank (1), a connecting piece for detachably connecting with the oil tank (1) is arranged on the valve seat (2), a reciprocating rod body (3) is slidably arranged in the valve seat (2), an oil pump (4) is arranged in the oil tank (1), a relief valve (42) is arranged at the oil outlet of the oil pump (4), an oil delivery pipe (43) is connected to the oil outlet of the oil pump (4), the oil delivery pipe (43) passes through the outer peripheral surface of the oil tank (1), and the oil delivery pipe (43) is away from the outer peripheral surface of the oil tank (1). One end of the oil tank (1) is connected to the valve seat (2), an electric valve (45) is provided on the oil delivery pipe (43), an oil return pipe (5) is fixed to the outer peripheral surface of the oil delivery pipe (43), the oil return pipe (5) is located at the end of the electric valve (45) close to the valve seat (2), the end of the oil return pipe (5) away from the oil delivery pipe (43) is fixedly connected to the outer peripheral surface of the oil tank (1), the oil return pipe (5) is provided with an electric valve (51), and the other end of the oil tank (1) is provided with an electric valve (52). The motor (41) is connected to the oil pump (4), the outer peripheral surface of the reciprocating rod body (3) is provided with a plurality of circular holes (6), a movable column (61) is slidably arranged in the circular hole (6), a spring (62) is fixed to the end surface of the movable column (61) close to the central axis of the reciprocating rod body (3), an end of the spring (62) away from the movable column (61) is fixed to the inner wall of the circular hole (6), and an end of the movable column (61) away from the spring (62) is fixed to the inner wall of the circular hole (6). A semicircular ball (63) is fixed thereon, and the inner circumference of the valve seat (2) is provided with a plurality of semicircular grooves (64), the outer circumference of the semicircular ball (63) is in contact with the inner circumference of the semicircular groove (64), a driving block (65) is fixed in the semicircular groove (64), and the bottom end of the driving block (65) is circular, a reset member for resetting the reciprocating rod body (3) is arranged on the valve seat (2), and a control unit for controlling the opening and closing of the electric valve 1 (45) and the electric valve 2 (51) is arranged on the oil tank (1).

2. A self-reciprocating high-frequency valve according to claim 1, characterized in that: The reciprocating rod body (3) comprises a moving block (31) slidably arranged in the valve seat (2) and a moving rod (32) fixed on the side of the moving block (31) away from the oil tank (1); the circular hole (6) is opened on the outer peripheral surface of the moving block (31); one end of the moving rod (32) away from the moving block (31) passes through the side of the valve seat (2) away from the oil tank (1); the moving rod (32) is slidably connected to the valve seat (2); the reset member comprises a spring (38) sleeved on the peripheral side of the moving rod (32); one end of the spring (38) abuts against the side of the moving block (31) away from the oil tank (1); and the other end of the spring (38) abuts against the inner side surface of the valve seat (2).

3. A self-reciprocating high-frequency valve according to claim 2, characterized in that: The control unit comprises a controller (47) arranged on the oil tank (1), a pressure transmitter (46) is arranged on the outer peripheral surface of the oil delivery pipe (43), and the pressure transmitter (46) is located on the side of the oil return pipe (5) away from the electric valve (45). The output end of the pressure transmitter (46) is electrically connected to the input end of the controller (47), and the output end of the controller (47) is electrically connected to the control ends of the electric valve (45) and the electric valve (51) respectively, so as to control the opening and closing of the electric valve (45) and the electric valve (51) in response to the pressure signal of the pressure transmitter (46).

4. A self-reciprocating high-frequency valve according to claim 3, characterized in that: A second oil return pipe (52) is fixed to the outer peripheral surface of the oil delivery pipe (43). The second oil return pipe (52) is located on the side of the electric valve (45) away from the first oil return pipe (5). The second oil return pipe (52) is provided with a third electric valve (53). The output end of the controller (47) is also connected to the control end of the third electric valve (53) to control the opening and closing of the third electric valve (53) in response to the pressure signal of the pressure transmitter (46).

5. A self-reciprocating high-frequency valve according to claim 2, characterized in that: A connecting pipe (34) is fixed to the outer peripheral surface of the valve seat (2), and the connecting pipe (34) is connected to the inside of the valve seat (2). The connecting pipe (34) is located on the side of the moving block (31) away from the spring (38). A connecting ring (35) is sleeved on the bottom end of the connecting pipe (34), and the connecting ring (35) is rotatably connected to the connecting pipe (34). One end of the oil delivery pipe (43) away from the oil tank (1) is inserted into the connecting ring (35), and the oil delivery pipe (43) is threadedly connected to the connecting ring (35).

6. A self-reciprocating high-frequency valve according to claim 5, characterized in that: The inner circumferential surface of the connecting pipe (34) is provided with an annular groove (36); the end surface of the oil delivery pipe (43) close to the valve seat (2) is fixed with a plug-in ring (44); the plug-in ring (44) is inserted into the annular groove (36); the inner side surface of the annular groove (36) close to the valve seat (2) is fixed with a rubber ring (37); the plug-in ring (44) and the rubber ring (37) are in contact with each other at their adjacent sides.

7. A self-reciprocating high-frequency valve according to claim 6, characterized in that: A limiting ring (33) is fixed on the inner circumferential surface of the valve seat (2), and the limiting ring (33) is located between the moving block (31) and the connecting pipe (34).

8. A self-reciprocating high-frequency valve according to claim 1, characterized in that: The connecting member comprises a connecting plate (21) fixed on the outer peripheral surface of the valve seat (2), a plurality of through holes (22) are provided on the side of the connecting plate (21), a plurality of threaded holes (23) are provided on the side of the oil tank (1) close to the connecting plate (21), the plurality of threaded holes (23) correspond to the plurality of through holes (22), a bolt (24) is inserted into the through hole (22), the bolt (24) passes through the through hole (22) and is inserted into the threaded hole (23), the bolt (24) is threadedly connected to the inner wall of the threaded hole (23), and the head of the bolt (24) abuts against the side of the connecting plate (21) away from the oil tank (1).

9. A self-reciprocating high-frequency valve according to claim 1, characterized in that: The outer peripheral surface of the oil tank (1) is provided with a heat-insulating layer (11).

10. A self-reciprocating high-frequency valve according to claim 3, characterized in that: An oil return pipe (66) is fixed to the outer peripheral surface of the valve seat (2). The oil return pipe (66) is connected to the valve seat (2). The top end of the oil return pipe (66) is located on the side of the moving block (31) away from the oil tank (1). The end of the oil return pipe (66) away from the valve seat (2) is connected to the oil delivery pipe (43). A one-way valve (67) is provided on the oil return pipe (66), and the oil in the valve seat (2) can flow into the oil delivery pipe (43) through the one-way valve (67).

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