Automatic opening and closing device for high-voltage switch

Abstract

An automatic opening and closing device for a high-voltage switch belongs to the technical field of electrical equipment, and aims to solve the problems of failure of opening or closing, possible power failure or equipment damage, incapability of automatically switching operation modes in emergency, dependence on manual intervention and delay of response time caused by complete failure of a driving assembly when the driving assembly is damaged in the prior art. The high-voltage switch comprises a high-voltage switch body, the high-voltage switch body is connected with a driving assembly, the output end of the driving assembly is fixedly connected with one end of a knife switch, the upper end of a transfer assembly is further connected with two locking assemblies, and the two locking assemblies are symmetrically arranged about the knife switch front and back. The driving assembly achieves remote control over opening and closing of a knife switch, the hidden danger that an operator makes direct contact with a high-voltage component is eliminated, the pulse hydraulic assembly drives a hydraulic piston through a coil alternating-current magnetic field, a corrugated pipe assembly is automatically activated to push the knife switch in the case of a fault, manual intervention is not needed, and the operation efficiency is improved. The operation safety is ensured.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, specifically to an automatic opening and closing device for a high-voltage switch. Background Technology

[0002] In power systems, high-voltage switches are core components for controlling and protecting critical equipment. The background technology of their automatic opening and closing devices stems from the increasing complexity of power networks and the growing safety requirements. Traditional manually operated switch systems pose high risks in high-voltage environments, including human error, response delays, and exposure of operators to electric arc injuries. This has driven the development of automation technology.

[0003] Existing technology completely fails when the drive component is damaged, resulting in failure to open or close the circuit breaker, which may cause power outages or equipment damage. It cannot automatically switch operating modes in emergency situations, relying on manual intervention and delaying response time.

[0004] To address the above problems, an automatic opening and closing device for high-voltage switches is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic high-voltage switch opening and closing device. By using this device, the problems of the prior art mentioned above, such as the complete failure of the drive component when it is damaged, resulting in failure to open or close the switch, which may cause power outages or equipment damage, and the inability to automatically switch the operating mode in emergency situations, relying on manual intervention and delaying the response time, are solved.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An automatic high-voltage switch opening and closing device is provided, comprising a high-voltage switch body, a drive assembly connected to the high-voltage switch body, an output end of the drive assembly fixedly connected to one end of a switch blade, a switch blade fixedly connected to the upper end of a bellows assembly, a lower end of the bellows assembly fixedly connected to the upper end of a transfer assembly, two locking assemblies connected to the upper end of the transfer assembly, the two locking assemblies being symmetrically arranged about the front and rear of the switch blade, a lower end of the transfer assembly fixedly connected to the upper end of a one-way valve, a lower end of the one-way valve being fixedly connected to the upper end of a pulse hydraulic assembly, and a lower end of the pulse hydraulic assembly fixedly connected to the high-voltage switch body.

[0007] Furthermore, the drive assembly includes a motor, which is fixedly connected to the high-voltage switch body. The output end of the motor is fixedly connected to a bevel gear. A drive shaft is fixedly connected to the left end of the switch, and the drive shaft is rotatably connected to the high-voltage switch body. Another bevel gear is fixedly connected to the drive shaft, and the two bevel gears mesh.

[0008] Furthermore, the pulse hydraulic assembly includes a hydraulic chamber 1, which is fixedly connected to the high-voltage switch body. A coil is fixedly connected to the outer wall of the hydraulic chamber 1. A hydraulic piston 1 is slidably connected inside the hydraulic chamber 1. A magnet is fixedly connected to the lower end of the hydraulic piston 1. The upper end of the hydraulic piston 1 is fixedly connected to one end of a spring 1. The other end of the spring 1 is fixedly connected to the top of the inner cavity of the hydraulic chamber 1.

[0009] Furthermore, the pulse hydraulic assembly also includes a liquid supply chamber, which is fixedly connected to the high-pressure switch body. The liquid supply chamber has a liquid supply port, and a liquid inlet is provided on the side of the hydraulic chamber. The liquid inlet is fixedly connected to one end of a one-way valve, and the other end of the one-way valve is fixedly connected to one end of a liquid supply hose. The other end of the liquid supply hose is fixedly connected to the liquid supply port.

[0010] Furthermore, the upper end of the hydraulic chamber is provided with a liquid outlet, which is fixedly connected to one end of the one-way valve. The transfer assembly includes a transfer chamber, the lower end of which is fixedly connected to the other end of the one-way valve.

[0011] Furthermore, the liquid supply chamber is also provided with a return port, and the transfer chamber is provided with a second outlet on the left side. A solenoid valve is fixedly connected to the second outlet, and the solenoid valve is fixedly connected to one end of the hose, while the other end of the hose is fixedly connected to the return port.

[0012] Furthermore, a second liquid inlet is provided at the bottom center of the transfer chamber, and the other end of the third check valve is fixedly connected to the second liquid inlet. Two extrusion plates are slidably connected inside the transfer chamber, and the two extrusion plates are symmetrically arranged on both sides of the second liquid inlet. The two extrusion plates are fixedly connected to one end of the second spring, and the other end of the second spring is fixedly connected to the inner wall of the transfer chamber. A connecting cover is fixedly connected to the upper end of the transfer chamber, and two third liquid outlets are provided on the connecting cover.

[0013] Furthermore, two hydraulic chambers are fixedly connected to the connecting cover. The two hydraulic chambers are respectively located at the positions of two liquid outlets. A hydraulic piston is slidably connected inside the two hydraulic chambers. One end of the hydraulic piston is fixedly connected to a spring, and the other end of the spring is fixedly connected to the top of the inner cavity of the hydraulic chamber. The lower end of the hydraulic piston is fixedly connected to the L-shaped push rod, and the L-shaped push rod is slidably connected to the top of the hydraulic chamber.

[0014] Furthermore, both locking components include a bend rod with a groove on it. The upper end of the L-shaped top rod is slidably connected in the groove. A rotating shaft is also fixedly connected to the bend rod, and a torsion spring is sleeved on the rotating shaft. The rotating shaft is rotatably connected to the transfer chamber. A stop rod is fixedly connected to the upper end of the bend rod.

[0015] Furthermore, the upper end of the connecting cover is provided with a connecting port, the corrugated pipe assembly includes a corrugated pipe, the lower end of the corrugated pipe is fixedly connected to the connecting port, a spring four is provided inside the corrugated pipe, the upper end of the spring four is fixedly connected to the top of the inner cavity of the corrugated pipe, and the lower end of the spring four is fixedly connected to the lower end of the corrugated pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The drive assembly enables remote control of the switch opening and closing, eliminating the risk of operators directly contacting high-voltage components. The pulse hydraulic assembly uses the AC magnetic field of the coil to drive the hydraulic piston, and automatically activates the bellows assembly to push the switch in case of a fault, without the need for manual intervention, ensuring operational safety.

[0017] After the circuit is closed, the locking assembly presses the switch knife with the L-shaped top rod to prevent the switch knife from loosening and ensure the stability of electrical contact.

[0018] When the circuit is closed, the solenoid valve opens, and the liquid in the bellows flows back to the supply chamber under the action of gravity. During this process, the liquid gradually flows into the supply chamber. When the switch is deflected clockwise, the liquid and the bellows have a buffering effect on the switch, avoiding damage to the high-voltage switch body caused by the impact of the switch on the high-voltage switch body.

[0019] 4. When the drive component is damaged, the pulse hydraulic component reciprocates, pushing the liquid into the transfer component and the bellows component to achieve automatic opening or closing of the circuit breaker, ensuring uninterrupted operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a cross-sectional view of the overall three-dimensional structure of the present invention; Figure 3 This is a front view of the overall three-dimensional structure of the present invention; Figure 4 For the present invention Figure 1 Enlarged view of region A in the middle; Figure 5 For the present invention Figure 2 Enlarged view of region B in the middle; Figure 6 For the present invention Figure 3 Enlarged view of region C; Figure 7 For the present invention Figure 4 Enlarged view of region D in the middle; Figure 8 For the present invention Figure 5 Enlarged view of region E in the middle; Figure 9 For the present invention Figure 5 Enlarged view of the middle F region; Figure 10 For the present invention Figure 5 Enlarged view of the G region.

[0021] In the diagram: 1. High-voltage switch body; 2. Drive assembly; 21. Motor; 22. Drive shaft; 3. Knife switch; 4. Bellows assembly; 41. Bellows; 42. Spring four; 5. Transfer assembly; 51. Transfer chamber; 510. Outlet two; 511. Inlet two; 52. Solenoid valve; 53. Squeezing plate; 54. Spring two; 55. Connecting cover; 550. Outlet three; 56. Hydraulic chamber two; 57. Hydraulic piston two; 58. Spring 3; 59. L-shaped top rod; 6. Locking assembly; 61. Angle rod; 62. Slide groove; 63. Rotating shaft; 64. Torsion spring; 65. Push rod; 7. One-way valve 3; 8. Pulse hydraulic assembly; 81. Hydraulic chamber 1; 810. Outlet 1; 82. Coil; 83. Hydraulic piston 1; 84. Magnet; 85. Spring 1; 86. Supply chamber; 860. Return port; 87. Supply port; 88. Inlet port 1; 89. One-way valve 1. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Reference Figure 1 and Figure 3 As shown, an automatic high-voltage switch opening and closing device includes a high-voltage switch body 1, a drive assembly 2 connected to the high-voltage switch body 1, an output end of the drive assembly 2 fixedly connected to one end of a switch 3, a switch 3 fixedly connected to the upper end of a bellows assembly 4, a lower end of the bellows assembly 4 fixedly connected to the upper end of a transfer assembly 5, two locking assemblies 6 connected to the upper end of the transfer assembly 5, the two locking assemblies 6 being symmetrically arranged about the front and rear of the switch 3, a lower end of the transfer assembly 5 fixedly connected to the upper end of a one-way valve 7, a lower end of the one-way valve 7 fixedly connected to the upper end of a pulse hydraulic assembly 8, and a lower end of the pulse hydraulic assembly 8 fixedly connected to the high-voltage switch body 1.

[0024] This device is used in AC circuits. When the high-voltage switch needs to be opened, the drive assembly 2 is activated, and the drive assembly 2 rotates forward, causing the switch 3 to deflect counterclockwise, thereby disengaging the right end of the switch 3 from the high-voltage switch body 1, thus opening the switch. When the high-voltage switch needs to be closed, the drive assembly 2 is activated, and the drive assembly 2 rotates in the opposite direction, causing the switch 3 to deflect clockwise, thereby making the right end of the switch 3 contact the high-voltage switch, thus closing the switch. This setting can avoid electric shock caused by manual opening. When the drive assembly 2 is activated, that is, when the drive assembly 2 rotates forward or in the opposite direction, the pulse hydraulic assembly 8 is activated at the same time. The pulse hydraulic assembly 8 works reciprocally, so that the liquid in the pulse hydraulic assembly 8 enters the transfer assembly 5 through the one-way valve 3 7. When the circuit breaker is open, the transfer assembly 5 is in the closed state. The liquid entering the transfer assembly 5 will enter the bellows assembly 4, which will increase the hydraulic pressure in the bellows assembly 4 and cause the bellows assembly 4 to extend. In the event of damage to the drive assembly 2, the extension of the bellows assembly 4 will push the switch 3 to disengage from the high-voltage switch body 1, thus achieving the opening of the circuit breaker. When the circuit breaker is closed, the pulse hydraulic assembly 8 will continuously press liquid into the transfer assembly 5, while the transfer assembly 5 is in the open state. At this time, the liquid in the transfer assembly 5 and the liquid in the bellows assembly 4 will gradually decrease, causing the bellows assembly 4 to contract. When the bellows assembly 4 contracts, it will pull the switch 3 to achieve the closing of the circuit breaker. This structure can achieve the closing of the circuit breaker in an emergency.

[0025] Reference Figure 2 As shown, the drive assembly 2 includes a motor 21, which is fixedly connected to the high-voltage switch body 1. The output end of the motor 21 is fixedly connected to a bevel gear. The left end of the switch 3 is fixedly connected to a drive shaft 22, which is rotatably connected to the high-voltage switch body 1. Another bevel gear is fixedly connected to the drive shaft 22, and the two bevel gears mesh.

[0026] During use, when the motor 21 is damaged, it is not locked. Its output can rotate with the transmission shaft 22. When closing or opening the circuit breaker, the motor 21 rotates in the forward or reverse direction. The rotation of the motor 21 drives a bevel gear fixedly connected to it to rotate. Through the meshing of the two bevel gears, the other bevel gear rotates, which in turn drives the transmission shaft 22 to rotate. This, in turn, drives the switch 3 fixedly connected to the transmission shaft 22 to deflect clockwise or counterclockwise, thereby achieving closing or opening the circuit breaker.

[0027] Reference Figure 2 and Figures 5-6As shown, the pulse hydraulic assembly 8 includes a hydraulic chamber 81, which is fixedly connected to the high-voltage switch body 1. A coil 82 is fixedly connected to the outer wall of the hydraulic chamber 81. A hydraulic piston 83 is slidably connected inside the hydraulic chamber 81. A magnet 84 is fixedly connected to the lower end of the hydraulic piston 83. The upper end of the hydraulic piston 83 is fixedly connected to one end of a spring 85. The other end of the spring 85 is fixedly connected to the top of the inner cavity of the hydraulic chamber 81.

[0028] When the circuit is closed or opened, the motor 21 starts, and the coil 82 is energized. In the case of AC power, when the coil 82 is energized, a magnetic field is generated, and its direction changes continuously, that is, the magnetic field direction is upward or downward. The frequency of the change is proportional to the frequency of AC power. When the magnetic field direction is upward, it pushes the magnet 84 to move upward, which in turn causes the hydraulic piston 83 to move upward in the hydraulic chamber 81. The spring 85 is compressed, and the liquid above the hydraulic piston is squeezed by the hydraulic piston 83, which causes the liquid to exert a squeezing force on the one-way valve 7, which in turn causes the one-way valve 7 to open, and the liquid enters the transfer component 5. When the magnetic field direction is downward, it pushes the magnet to move downward, which in turn causes the hydraulic piston 83 to move downward. The spring 58 returns to its original position, and a negative pressure is formed above the hydraulic piston 83.

[0029] Reference Figure 2 and Figures 5-6 As shown, the pulse hydraulic assembly 8 also includes a liquid supply chamber 86, which is fixedly connected to the high-pressure switch body 1. A liquid supply port 87 is provided on the liquid supply chamber 86, and a liquid inlet 88 is provided on the side of the hydraulic chamber 81. The liquid inlet 88 is fixedly connected to one end of a check valve 89, and the other end of the check valve 89 is fixedly connected to one end of a liquid supply hose. The other end of the liquid supply hose is fixedly connected to the liquid supply port 87.

[0030] After a negative pressure is formed above the hydraulic piston 83, the liquid in the supply chamber 86 is forced to enter the hydraulic chamber 81 through the supply port 87, the supply hose, the check valve 89, and the inlet port 88. The liquid in the hydraulic chamber 81 is positioned above the hydraulic piston 83 due to the obstruction of the hydraulic piston 83. When the magnetic field generated by the energized coil 82 is directed upward, the liquid above the hydraulic piston 83 is forced back into the transfer assembly 5.

[0031] Reference Figure 3 and Figure 6 As shown, the upper end of the hydraulic chamber 81 has a liquid outlet 810, which is fixedly connected to one end of the one-way valve 7. The transfer assembly 5 includes a transfer chamber 51, the lower end of which is fixedly connected to the other end of the one-way valve 7. The liquid above the hydraulic piston 83 is squeezed by the hydraulic piston 83 and enters the transfer chamber 51 through the one-way valve 7.

[0032] Reference Figure 2 and Figure 4 As shown, a return port 860 is also provided on the liquid supply chamber 86, and a second liquid outlet 510 is provided on the left side of the transfer chamber 51. A solenoid valve 52 is fixedly connected to the second liquid outlet 510. The solenoid valve 52 is fixedly connected to one end of the hose, and the other end of the hose is fixedly connected to the return port 860.

[0033] When the circuit is closed, the solenoid valve 52 opens, and the hydraulic piston 83 squeezes the liquid above it into the transfer chamber 51. The liquid then flows through the solenoid valve 52 into the hose, and then flows back into the supply chamber 86 through the hose and the return port 860. When the circuit is opened, the solenoid valve 52 closes, and the hydraulic piston 83 squeezes the liquid above it into the transfer chamber 51, causing the liquid in the transfer chamber 51 to increase rapidly.

[0034] Reference Figure 5 and Figure 8 As shown, a liquid inlet 2 511 is provided at the bottom center of the transfer chamber 51. The other end of the one-way valve 3 7 is fixedly connected to the liquid inlet 2 511. Two extrusion plates 53 are slidably connected inside the transfer chamber 51. The two extrusion plates 53 are symmetrically arranged on both sides of the liquid inlet 2 511. The two extrusion plates 53 are fixedly connected to one end of the spring 2 54 respectively. The other end of the spring 2 54 is fixedly connected to the inner wall of the transfer chamber 51. A connecting cover 55 is fixedly connected to the upper end of the transfer chamber 51. Two liquid outlets 3 550 are provided on the connecting cover 55.

[0035] When the valve is opened, liquid enters the transfer chamber 51 through inlet 2 511 and check valve 3 7. It is limited by the two squeezing plates 53. As the liquid in the transfer chamber 51 increases rapidly, the pressure of the liquid on the two squeezing plates 53 increases rapidly, which causes the two squeezing plates 53 to move in opposite directions. Spring 2 54 is compressed. When the two squeezing plates 53 move in opposite directions, the volume of the area formed by the squeezing plates 53 and the inner walls of the front and rear ends of the transfer chamber 51 decreases rapidly, which increases the gas pressure in this area.

[0036] Reference Figure 5 and Figure 9 As shown, two hydraulic chambers 56 are fixedly connected to the connecting cover 55. The two hydraulic chambers 56 are respectively located at the positions of the two liquid outlets 550. A hydraulic piston 57 is slidably connected inside the two hydraulic chambers 56. One end of the hydraulic piston 57 is fixedly connected to a spring 58, and the other end of the spring 58 is fixedly connected to the top of the inner cavity of the hydraulic chamber 56. The lower end of the hydraulic piston 57 is fixedly connected to the L-shaped push rod 59, and the L-shaped push rod 59 is slidably connected to the top of the hydraulic chamber 56.

[0037] The air pressure in the area formed by the inner walls of the front and rear ends of the extrusion plate 53 and the transfer chamber 51 increases. Under the action of air pressure, the hydraulic piston 57 is pushed to slide upward along the direction of the hydraulic chamber 56, which compresses the spring 58. When the hydraulic piston 57 slides upward, it drives the L-top rod 59 to slide upward synchronously.

[0038] Reference Figure 5 , Figure 7 and Figure 10 As shown, both locking components 6 include a bend rod 61, a groove 62 is provided on the bend rod 61, the upper end of the L-top rod 59 is slidably connected in the groove 62, a rotating shaft 63 is fixedly connected to the bend rod 61, a torsion spring 64 is sleeved on the rotating shaft 63, the rotating shaft 63 is rotatably connected to the transfer chamber 51, and a stop rod 65 is fixedly connected to the upper end of the bend rod 61.

[0039] When the L-top rod 59 slides upward, it pushes the angle rod 61 to deflect upward, which in turn drives the rotating shaft 63 to rotate on the transfer chamber 51, causing the torsion spring 64 to deform, and at the same time the abutment rod 65 disengages from the knife gate 3.

[0040] Reference Figure 2 and Figure 5 As shown, the upper end of the connecting cover 55 is provided with a connecting port. The bellows assembly 4 includes a bellows 41. The lower end of the bellows 41 is fixedly connected to the connecting port. A spring 42 is provided inside the bellows 41. The upper end of the spring 42 is fixedly connected to the top of the inner cavity of the bellows 41, and the lower end of the spring 42 is fixedly connected to the lower end of the bellows 41.

[0041] During both opening and closing, coil 82 is energized. During opening, solenoid valve 52 is closed. When motor 21 fails, coil 82, connected to AC power, generates an alternating magnetic field. This field causes magnet 84 to move up and down, which in turn moves hydraulic piston 83 up and down. When hydraulic piston 83 moves upward, the liquid above it is squeezed by the piston, forcing it into transfer chamber 51. When hydraulic piston 83 moves downward, negative pressure causes liquid in supply chamber 86 to enter hydraulic chamber 81. This process repeats, filling transfer chamber 51 with liquid. The liquid volume increases rapidly. After the liquid volume in the transfer chamber 51 is full, the liquid volume in the transfer chamber 51 continues to increase. The liquid enters the bellows 41, causing the liquid volume in the bellows 41 to increase rapidly. Under the action of liquid pressure, the bellows 41 extends, causing the spring 42 to be stretched. Through the extension of the bellows 41, the switch 3 deflects counterclockwise by a small angle, realizing the opening. At this time, the bellows 41 will bend to the left. The bending angle is small, and under the support of the spring 42, the bellows 41 will not collapse. Therefore, the opening will not fail. When the right end of the switch 3 is separated from the high-voltage switch body 1, the coil 82 stops being energized. During the closing process, the solenoid valve 52 opens. When the motor 21 fails, the liquid in the bellows 41 flows into the transfer chamber 51 under gravity. Then, it flows through the solenoid valve 52 and the hose, and enters the supply chamber 86 from the return port 860. As the liquid in the bellows 41 decreases, the spring 42 gradually resets. Under the pull of the spring 42, the switch 3 deflects clockwise, thus achieving the purpose of closing. When closing, the liquid in the transfer chamber 51 decreases. At the moment when the right end of the switch 3 contacts the high-voltage switch body 1, the spring 54 resets, thus pushing the squeeze plate 53 to reset. At the same time, the spring 58 resets, the hydraulic piston 57 resets, and the L-top rod 59 moves downward, thus causing the angle rod 61 to deflect towards the switch 3. The abutment rod 65 on the angle rod 61 presses the switch 3 tightly. After closing is completed, the power supply to the coil 82 is stopped.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic opening and closing device for a high-voltage switch, characterized in that: The device includes a high-voltage switch body (1), on which a drive assembly (2) is connected. The output end of the drive assembly (2) is fixedly connected to one end of a knife switch (3). The knife switch (3) is fixedly connected to the upper end of a bellows assembly (4). The lower end of the bellows assembly (4) is fixedly connected to the upper end of a transfer assembly (5). The upper end of the transfer assembly (5) is also connected to two locking assemblies (6). The two locking assemblies (6) are symmetrically arranged about the knife switch (3). The lower end of the transfer assembly (5) is fixedly connected to the upper end of a one-way valve (7). The lower end of the one-way valve (7) is fixedly connected to the upper end of a pulse hydraulic assembly (8). The lower end of the pulse hydraulic assembly (8) is fixedly connected to the high-voltage switch body (1).

2. The high-voltage switch automatic opening and closing device according to claim 1, characterized in that: The drive assembly (2) includes a motor (21), which is fixedly connected to the high voltage switch body (1). The output end of the motor (21) is fixedly connected to a bevel gear. The left end of the switch (3) is fixedly connected to a drive shaft (22), which is rotatably connected to the high voltage switch body (1). Another bevel gear is fixedly connected to the drive shaft (22), and the two bevel gears mesh.

3. The high-voltage switch automatic opening and closing device according to claim 1, characterized in that: The pulse hydraulic assembly (8) includes a hydraulic chamber (81), which is fixedly connected to the high-voltage switch body (1). A coil (82) is fixedly connected to the outer wall of the hydraulic chamber (81). A hydraulic piston (83) is slidably connected inside the hydraulic chamber (81). A magnet (84) is fixedly connected to the lower end of the hydraulic piston (83). The upper end of the hydraulic piston (83) is fixedly connected to one end of a spring (85), and the other end of the spring (85) is fixedly connected to the top of the inner cavity of the hydraulic chamber (81).

4. The high-voltage switch automatic opening and closing device according to claim 3, characterized in that: The pulse hydraulic assembly (8) also includes a liquid supply chamber (86), which is fixedly connected to the high-pressure switch body (1). The liquid supply chamber (86) is provided with a liquid supply port (87). The side of the hydraulic chamber (81) is provided with a liquid inlet (88). The liquid inlet (88) is fixedly connected to one end of a one-way valve (89). The other end of the one-way valve (89) is fixedly connected to one end of a liquid supply hose. The other end of the liquid supply hose is fixedly connected to the liquid supply port (87).

5. The automatic opening and closing device for a high-voltage switch according to claim 3, characterized in that: The upper end of the hydraulic chamber (81) is provided with an outlet (810), which is fixedly connected to one end of the check valve (7). The transfer assembly (5) includes a transfer chamber (51), and the lower end of the transfer chamber (51) is fixedly connected to the other end of the check valve (7).

6. The automatic opening and closing device for a high-voltage switch according to claim 5, characterized in that: The liquid supply chamber (86) is also provided with a return port (860), and the transfer chamber (51) is provided with a second outlet (510) on the left side. A solenoid valve (52) is fixedly connected to the second outlet (510). The solenoid valve (52) is fixedly connected to one end of the hose, and the other end of the hose is fixedly connected to the return port (860).

7. The high-voltage switch automatic opening and closing device according to claim 5, characterized in that: The transfer chamber (51) has a liquid inlet 2 (511) at the bottom center. The other end of the one-way valve 3 (7) is fixedly connected to the liquid inlet 2 (511). Two extrusion plates (53) are slidably connected inside the transfer chamber (51). The two extrusion plates (53) are symmetrically arranged on both sides of the liquid inlet 2 (511). The two extrusion plates (53) are fixedly connected to one end of the spring 2 (54). The other end of the spring 2 (54) is fixedly connected to the inner wall of the transfer chamber (51). A connecting cover (55) is fixedly connected to the upper end of the transfer chamber (51). Two liquid outlet 3 (550) are opened on the connecting cover (55).

8. The high-voltage switch automatic opening and closing device according to claim 7, characterized in that: Two hydraulic chambers (56) are fixedly connected to the connecting cover (55). The two hydraulic chambers (56) are respectively located at the positions of two liquid outlets (550). A hydraulic piston (57) is slidably connected inside the two hydraulic chambers (56). One end of the hydraulic piston (57) is fixedly connected to one end of the spring (58). The other end of the spring (58) is fixedly connected to the top of the inner cavity of the hydraulic chamber (56). The lower end of the hydraulic piston (57) is fixedly connected to the L-rod (59). The L-rod (59) is slidably connected to the top of the hydraulic chamber (56).

9. The automatic opening and closing device for a high-voltage switch according to claim 8, characterized in that: Both locking components (6) include a bend rod (61), a groove (62) is provided on the bend rod (61), the upper end of the L-top rod (59) is slidably connected in the groove (62), a rotating shaft (63) is fixedly connected to the bend rod (61), a torsion spring (64) is sleeved on the rotating shaft (63), the rotating shaft (63) is rotatably connected to the transfer chamber (51), and a stop rod (65) is fixedly connected to the upper end of the bend rod (61).

10. The high-voltage switch automatic opening and closing device according to claim 7, characterized in that: The upper end of the connecting cover (55) is provided with a connecting port. The corrugated pipe assembly (4) includes a corrugated pipe (41). The lower end of the corrugated pipe (41) is fixedly connected to the connecting port. A spring four (42) is provided inside the corrugated pipe (41). The upper end of the spring four (42) is fixedly connected to the top of the inner cavity of the corrugated pipe (41), and the lower end of the spring four (42) is fixedly connected to the lower end of the corrugated pipe (41).

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