High-voltage vacuum circuit breaker

Abstract

The invention discloses a high-voltage vacuum circuit breaker which comprises a vacuum switch capable of being switched between a closed state and an open state and an isolating switch connected with the vacuum switch, the isolating switch can be switched between an open state and a closed state, and the driving end of the isolating switch is connected with a counter weight. The counter weight is connected with the winding unit through a control line, and the winding unit controls the position of the counter weight in the vertical direction by winding / releasing the control line; the device has the advantages that the counter weight releases gravitational potential energy to obtain power, the internal structure can be greatly simplified, and a more stable operation structure is achieved; in addition, the size of instant disconnection power can be regulated and controlled by adjusting the traction rope between the counter weight and the isolation switch.

Description

Technical Field

[0001] The invention relates to a high-voltage vacuum circuit breaker. Background Art

[0002] High-voltage vacuum circuit breakers are important switching devices that protect power equipment and power grids from overcurrent, short circuits or other electrical faults. They are mainly used to disconnect and connect high-voltage circuits in power systems. High-voltage vacuum circuit breakers use vacuum as the arc-extinguishing medium, so they have particularly excellent electrical performance and a long service life. They are widely used in distribution networks and industrial power systems.

[0003] Existing high-voltage vacuum circuit breakers mainly adopt spring operating mechanisms, electromagnetic operating mechanisms, and hydraulic operating mechanisms. The most common and commonly used high-voltage vacuum circuit breakers are spring operating mechanisms. The spring mechanism uses the mechanical energy of the energy storage spring to complete the closing and opening actions of the contacts. During operation, the spring is first stored with energy through a manual crank, motor or other external force. The existing spring operating mechanism has high requirements for the coordination between various components, and the transmission of multiple components also significantly increases the equipment cost. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a high-voltage vacuum circuit breaker that disconnects the energy storage circuit by converting gravitational potential energy. The gravitational potential energy can provide a large instantaneous pulling force for the isolating switch to quickly cut off the vacuum switch; and the control line unit provided by the present invention can realize unidirectional movement control of the counterweight through the control line, and the winding unit can unidirectionally drive the counterweight to move upward to complete the internal energy storage.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0006] A high-voltage vacuum circuit breaker comprises a vacuum switch capable of switching between a closed state and an open state and an isolating switch connected to the vacuum switch. The isolating switch can switch between an open state and a closed state. A counterweight is connected to the driving end of the isolating switch. The counterweight is connected to a winding unit through a control line. The winding unit controls the vertical position of the counterweight by winding / releasing the control line.

[0007] In the technical solution provided by the present invention, the high-voltage vacuum circuit breaker uses a counterweight to release gravitational potential energy to drive it to switch between closing and opening. Traditional high-voltage vacuum circuit breakers mostly use energy storage springs as the cutting power, and also need to rely on the mutual cooperation of mechanisms such as cams and ratchets to complete the work. In the present invention, the counterweight is used to release gravitational potential energy to obtain power, which can greatly simplify the internal structure and have a more stable operating structure; in addition, in the present invention, the traction rope between the counterweight and the isolating switch can be adjusted to control the size of the instantaneous cutting power, and the length of the traction rope is equivalent to the distance of the free fall of the counterweight in the vertical direction.

[0008] A further improvement and optimization of the above technical solution is that a line control unit is arranged between the winding unit and the counterweight, and the line control unit can switch between a line-catching state and a line-releasing state. When the line control unit switches to the line-releasing state, the counterweight will pull the winding unit to release the line and drive the isolating switch to switch to the open state; under the action of the line control unit, the control line can move unidirectionally from the counterweight to the winding unit; its function is that the line control unit controls the counterweight by capturing and releasing the control line, and under the action of the line control unit, the control line can be unidirectionally wound and reeled in the winding unit, and at the same time, when the line control unit switches to the release state, the counterweight can apply a driving force to the isolating switch.

[0009] More optimally, the line control unit includes a line control frame fixedly installed in the shell, the line control frame is rotatably connected with the main control wheel and the line pressing guide wheel, the line control frame is provided with a line control guide groove, the line control guide groove includes a vertical section and an inclined section, the inclined direction of the inclined section is toward the main control wheel, a resistance wheel is slidably matched in the line control guide groove, the surface of the resistance wheel is set to a rough surface, when the resistance wheel enters the inclined section, the resistance wheel and the main control wheel clamp the control line, and the control line is led out from the winding drum and enters between the main control wheel and the resistance wheel from the lower end of the resistance wheel. area, and is connected to the counterweight under the guidance of the wire-pressing guide wheel; its function is that when the counterweight pulls the control line, under the action of friction, the control line will pull the resistance wheel into the inclined section, and as the resistance wheel further slides toward the main control wheel, the pressure applied by the resistance wheel to the control line will further increase. In addition, when the winding drum rotates, the control line moves toward the winding drum, and the traction force on the control line will drive the resistance wheel to slide and make the resistance wheel deviate from the main control wheel, and the control line can move normally toward the winding drum.

[0010] A more detailed optimization lies in that a pressure plate which can move in a vertical direction is slidably arranged on the line control frame, the pressure plate is located at the upper end of the resistance wheel, the resistance wheel extends to the outer side of the control line as a protrusion, and the pressure plate applies downward pressure to the protrusion; a control rod which can slide along its own axial direction is movably arranged in the frame, a control switch is arranged between the control rod and the line control unit, the control switch can receive the thrust of the control rod and push the pressure plate to move downward, one end of the control rod extends to the outside of the shell, and the other end is located in the shell and is connected to a relay, and the relay pulls the control rod to move inward and transmits a downward force to the pressure plate after power is turned on; its function is that by pressing the control rod, the control rod can apply a force to the pressure plate, and the pressure plate drives the resistance wheel to deviate from the main control wheel, thereby providing space for releasing the control line, and in addition, when a line fault occurs, the relay will be energized and pull the control rod to move to realize the release of the control line, thereby achieving the function of automatically controlling the on and off of the circuit.

[0011] A further improvement and optimization is that the control switch includes a control base fixedly mounted on the frame, a control slide plate that can slide in a vertical direction is slidably arranged on the control base, a control spring is arranged between the control base and the control slide plate, the elastic force provided by the control spring is used to push the control slide plate to move upward and deviate from the pressure plate, a pressing base surface is arranged on the control slide plate, a moving block is fixedly arranged on the control rod, a pushing base surface matching the pressing base surface is arranged on the moving block, and the thrust transmitted by the control rod to the moving block can realize that the moving block pushes the pressure plate to move downward; its function is that under the elastic force of the control spring, the control slide plate always tends to move upward and eliminates the pressure on the pressure plate, and when the control rod moves inward, the moving block fixedly connected to the control rod will push the pressure plate to move downward and provide avoidance space for the movement of the control line.

[0012] Preferably, an annular protrusion is provided on the control rod, and a return spring is sleeved on the control rod, one end of the return spring abuts against the wire control frame, and the other end abuts against the annular protrusion, and the elastic force provided by the return spring is used to push the control rod to move outward; its function is that the return spring is used to realize the resetting of the control rod, and after the control rod moves by pressing control or driven by a relay, it will be driven by the return spring to quickly reset.

[0013] The above technical solution can also be improved in that the isolating switch includes a main control rod hinged to the shell, a traction rod is hinged between the main control rod and the lower end of the vacuum switch, one end of the traction rod is hinged to the middle position of the main control rod, and the other end is hinged to the driving end of the vacuum switch, and a tension spring is arranged between the shell and the main control rod, and the elastic force provided by the tension spring is used to pull the main control rod to deflect upward, and the suspended end of the main control rod is connected to the counterweight through a traction line; its function is that, under the action of the tension spring, the main control rod can push the traction rod to move upward and prompt the vacuum switch to close, thereby turning on the circuit, and the kinetic energy generated by the free fall of the counterweight will be able to instantly apply a huge force to the main control rod, and the vacuum switch will be pulled open by the traction rod.

[0014] To further improve the above technical solution, a line straightening unit for combing the traction line is provided in the shell. Its function is that the movement of the counterweight in the shell will easily cause the traction line to be dispersed in the shell and in a disordered state. In addition, the length of the traction line also determines the distance of the free fall of the counterweight. The traction line can be combed by using the line straightening unit.

[0015] In order to further optimize the above-mentioned technical features, the line-straightening unit includes a line-straightening base fixed in a shell, a line-straightening slide sliding in a horizontal direction is slidably arranged on the line-straightening base, a line-straightening spring is arranged between the line-straightening base and the line-straightening slide, one end of the line-straightening spring abuts against the line-straightening base, and the other end abuts against the line-straightening slide, the elastic force provided by the line-straightening spring is used to push the line-straightening slide away from the counterweight, and an avoidance gap for the traction line to pass through is arranged on the line-straightening slide; its function is that the elastic force provided by the line-straightening spring pushes the line-straightening slide to deviate outward, and the wall of the avoidance gap pulls the traction line to deviate synchronously, so that the traction line deviates from the line control unit.

[0016] For further improvement and optimization, a main shaft that can rotate around its own axis is movably arranged in the shell, and the winding unit includes a winding wheel fixedly connected to the main shaft, and the winding wheel can be driven to rotate synchronously and realize the line-winding operation by applying rotational force to the main shaft; its function is that in the energy storage stage, the main shaft can be rotated and the control line can be wound by the winding wheel to achieve the height of the counterweight in the vertical direction, so as to eliminate the tension of the traction line. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the layout structure of the vacuum switch, disconnector, and complete line unit in the installation shell.

[0018] Figure 2 It is a schematic diagram of the structure matching the traction rod, main control rod and vacuum switch.

[0019] Figure 3 This is a schematic diagram of the structure that matches the entire line base and the entire line slide.

[0020] Figure 4 It is a schematic diagram of the structure in which the counterweight, the winding unit and the line control unit match each other.

[0021] Figure 5 It is a schematic diagram of the structure of the matching control switch and the line control unit.

[0022] Figure 6 It is a schematic diagram of the structure matching the control switch and the pressure plate.

[0023] Figure 7 A schematic diagram of the structure that matches the main control wheel, the resistance wheel, and the line-pressing guide wheel.

[0024] Figure 8 It is a schematic diagram of the structure in which the resistance wheel, the pressure plate and the line control guide groove match each other.

[0025] Fig. 9 It is a schematic diagram of the structure matching the control rod, the moving block and the control slide plate.

[0026] Fig.10 It is a schematic diagram of the structure in which the static conductive rod and the dynamic conductive rod in the vacuum switch match each other.

[0027] The symbols in the figure are:

[0028] 10. Vacuum switch;

[0029] 20. Isolating switch; 21. Traction rod; 22. Main control rod; 23. Tension spring;

[0030] 30. Whole line unit; 31. Whole line base; 32. Whole line slide plate;

[0031] 40. Counterweight;

[0032] 50. Winding unit;

[0033] 60, line control unit; 610, main control wheel; 620, resistance wheel; 630, line pressing guide wheel; 640, pressing plate; 650, line control guide groove;

[0034] 70. Control lever; 710. Relay; 720. Control switch; 721. Control base; 722. Control slide; 723. Moving block. DETAILED DESCRIPTION

[0035] like Figure 1 , 2As shown, a high-voltage vacuum circuit breaker includes a shell for providing support and installation, a vacuum switch 10 and an isolating switch 20 are installed on the shell, the isolating switch 20 is connected to the vacuum switch 10 and is used to control the closing and opening of the vacuum switch 10, a counterweight 40 is connected to the driving end of the isolating switch 20, and a winding unit 50 is also installed in the shell, a control line is wound around the winding unit 50 and the suspended end of the control line is connected to the counterweight 40; when it is necessary to cut off the power line, the winding unit 50 releases the control line and provides sufficient movement space for the counterweight 40, and under the action of gravity, the counterweight 40 applies a force to the isolating switch 20 and prompts the isolating switch 20 to cut off the vacuum switch 10.

[0036] The vacuum switch 10 is an existing mature technology and is well known to ordinary technicians in this field. To facilitate the understanding of the present invention, the conventional internal structure of the vacuum switch 10 is now explained to facilitate the understanding of the present invention; the moving end cover plate, the static end cover plate, and the stainless steel bellows C constitute an airtight insulation system. The stainless steel bellows C can isolate the vacuum state in the vacuum arc chamber from the external atmospheric state, and can enable the moving contact together with the moving conductive rod B to move within a specified range. Under the traction action of the traction rod 21, the moving conductive rod B can control the movement of the moving conductive rod B toward or away from the static conductive rod A to complete the closing and disconnecting operations of the vacuum switch. When the vacuum chamber breaks the short-circuit current, the arc is absorbed by the shielding system.

[0037] like Figure 2 As shown, the isolating switch 20 includes a main control rod 22 hinged to the housing, a traction rod 21 is hinged between the main control rod 22 and the lower end of the vacuum switch 10, preferably, one end of the traction rod 21 is hinged to the middle position of the main control rod 22, and the other end is hinged to the driving end of the vacuum switch 10, a tension spring 23 is arranged between the housing and the main control rod 22, the elastic force provided by the tension spring 23 is used to pull the main control rod 22 to deflect upward, the suspension end of the main control rod 22 is connected to the counterweight 40 through a traction line, and the gravity of the counterweight is greater than the elastic force provided by the tension spring , so that under the action of the gravity of the counterweight, the isolating switch is ensured to remain in the closed state; when the counterweight 40 applies a force to the main control rod 22, the main control rod 22 will overcome the elastic force of the tension spring 23 and the traction rod 21 will pull the vacuum switch 10 from the closed state to the open state, thereby cutting off the circuit; when the counterweight 40 eliminates the force applied to the main control rod 22, the tension spring 23 will apply a traction force to the main control rod 22, and under the action of the traction rod 21, push the vacuum switch 10 to switch from the open state to the closed state.

[0038] like Figure 3As shown, a line-straightening unit 30 for combing the traction line is provided in the shell. Its function is that when the counterweight 40 moves in the vertical direction, the traction line arranged between the counterweight 40 and the main control rod 22 may be entangled or stuck with other mechanisms. The line-straightening unit 30 is used to control the range of movement of the traction line and isolate it from other mechanisms. Specifically, the line-straightening unit 30 includes a line-straightening base 31 fixedly provided in the shell 10, and a line-straightening slide sliding in the horizontal direction is slidably provided on the line-straightening base 31. 32, a line-straightening spring is arranged between the line-straightening base 31 and the line-straightening slide plate 32, one end of the line-straightening spring abuts against the line-straightening base 31, and the other end abuts against the line-straightening slide plate 32, and the elastic force provided by the line-straightening spring is used to push the line-straightening slide plate 32 away from the counterweight 40, and an avoidance gap for the traction line to pass through is arranged on the line-straightening slide plate 32; when the counterweight 40 does not apply a force to the traction line, the traction line is in a relaxed state, at this time, under the action of the line-straightening spring, the line-straightening slide plate 32 drags the traction line to move synchronously to achieve a line-straightening effect.

[0039] like Figure 4 As shown, a main shaft that can rotate around its own axis is movably arranged in the shell, and the winding unit 50 includes a winding wheel fixedly sleeved on the main shaft. By applying a rotational force to the main shaft, the winding wheel can be driven to rotate synchronously and the winding operation can be realized. When the control line is wound around the winding wheel, it can be regarded as the energy storage stage of the present invention. During the winding process, the winding wheel will drive the counterweight 40 to move upward, and the distance between the counterweight 40 and the main control rod 22 will be closer, thereby providing more free fall movement space for the counterweight 40.

[0040] like Figure 1-4 As shown, the present invention provides three groups of vacuum switches 10, three groups of isolating switches 20, three groups of winding units 50, and three groups of line control units 60, which are in a one-to-one correspondence. The three groups of vacuum switches 10 are provided to meet the connection needs of the power lines. In practical operation, the number of vacuum switches 10 and other corresponding mechanisms can be adjusted according to the needs of the power lines.

[0041] like Figure 5 , 6 As shown, a control line unit 60 for adjusting and controlling the control line is provided between the winding unit 50 and the counterweight 40. Specifically, when the line is normally conductive, the vacuum switch 10 should remain in a closed state, and the control line unit 60 locks the control line at this time, thereby stabilizing the position of the counterweight 40 in the vertical direction and eliminating the force exerted by the counterweight 40 on the isolating switch 20; when a power line fails and the line needs to be cut off, the control line unit 60 will release the control line, the counterweight 40 will fall freely, and use the traction line to exert force on the isolating switch, thereby cutting off the circuit in the vacuum switch 10.

[0042] More specifically, Figure 5 , 8 As shown in , 9, the line control unit 60 includes a line control frame fixedly installed in the shell, the line control frame is rotatably connected to the main control wheel 610 and the line pressing guide wheel 630, and the line control frame is provided with a line control guide groove 650, the line control guide groove 650 includes a vertical section and an inclined section, the inclined direction of the inclined section is toward the main control wheel 610, and a resistance wheel 620 is slidably matched in the line control guide groove 650, and the surface of the resistance wheel 620 is provided with a rough surface. When the resistance wheel 620 enters the inclined section, the resistance wheel 620 can lock the control line, and the control line is led out from the winding drum and enters from the lower end of the resistance wheel 620 to the area between the main control wheel 610 and the resistance wheel 620, and is connected to the counterweight 40 under the guidance of the line pressing guide wheel 630.

[0043] When the counterweight 40 applies a downward traction force to the control line, the control line will tend to move downward with the counterweight 40, and the control line will drive the resistance wheel 620 to slide along the control line guide groove 650. When the resistance wheel enters the inclined section of the control line guide groove 650, due to the shortening of the gap between the inclined section and the main control wheel 610, the resistance wheel 620 will apply pressure to the control line and the pressure will gradually increase as the resistance wheel 620 approaches the main control wheel 610 until the resistance wheel 620 locks the control line; when the main shaft is rotated to drive the winding drum to rotate, the winding drum starts to reel in the control line. At this time, the direction of the traction force on the control line will push the resistance wheel 620 to deviate from the main control wheel 610 along the inclined section, thereby realizing unidirectional movement of the control line in the line control unit 60.

[0044] like Figure 7 , 8 As shown, a pressure plate 640 that can move in the vertical direction is slidably provided on the line control frame, and the pressure plate 640 is located at the upper end of the resistance wheel 630. The resistance wheel 630 extends to the outer side of the control line as a protrusion, and the pressure plate 640 applies downward pressure to the protrusion; when the line control unit 60 needs to release the constraint on the control line, a downward thrust is applied to the pressure plate 640, and the pressure plate 640 pushes the resistance wheel 630 to deviate from the main control wheel 610. When the resistance wheel 630 deviates from the main control wheel 610, the interval between the resistance wheel 630 and the main control wheel 610 increases, thereby releasing the constraint on the control line.

[0045] like Figure 6 , 9As shown, a control rod 70 that can slide along its own axis is movably arranged in the frame, and a control switch 720 is arranged between the control rod 70 and the line control unit 60. The control switch 720 can receive the thrust of the control rod 70 and push the pressure plate 640 to move downward. One end of the control rod 70 extends to the outside of the housing, and the other end is located in the housing and connected to a relay 710. After power is turned on, the relay 710 pulls the control rod 70 to move inward and transmits a downward force to the pressure plate 640. The relay 710 is an existing mature technology. After power is turned on, the relay 710 pulls the control rod 70 and prompts the control switch 720 to apply a force to the resistance wheel 630. Ordinary technicians can easily know the specific structure of the relay 710, which will not be described in detail.

[0046] More specifically, the control switch 720 includes a control base 721 fixedly mounted on the frame, a control slide 722 that can slide in a vertical direction is slidably arranged on the control base 721, a control spring is arranged between the control base 721 and the control slide 722, the elastic force provided by the control spring is used to push the control slide 722 to move upward and deviate from the pressure plate 640, a pressing base surface is arranged on the control slide 722, a moving block 723 is fixedly arranged on the control rod 70, and a pushing base surface matching the pressing base surface is arranged on the moving block 723, and the thrust transmitted by the control rod 70 to the moving block 723 can enable the moving block 723 to push the pressure plate 640 to move downward.

[0047] like Fig. 9 As shown, the control rod 70 is provided with an annular protrusion, and a return spring is sleeved on the control rod 70. One end of the return spring abuts against the wire control frame, and the other end abuts against the annular protrusion. The elastic force provided by the return spring is used to push the control rod 70 to move outward. Under the action of the return spring, the moving block 723 will eliminate the thrust on the control slide 722 and realize the reset of the control slide 722.

Claims

1. A high-voltage vacuum circuit breaker, comprising a vacuum switch (10) capable of switching between a closed state and an open state, and an isolating switch (20) connected to the vacuum switch (10), wherein the isolating switch (20) can switch between an open state and a closed state, and wherein: A counterweight (40) is connected to the driving end of the isolating switch (20), and the counterweight (40) is connected to a winding unit (50) via a control line. The winding unit (50) controls the vertical position of the counterweight (40) by winding / releasing the control line.

2. The high voltage vacuum circuit breaker according to claim (1), characterized in that: A wire control unit (60) is provided between the winding unit (50) and the counterweight (40). The wire control unit (60) can switch between a wire catching state and a wire releasing state. When the wire control unit (60) switches to the wire releasing state, the counterweight (40) pulls the winding unit (50) to release the wire and drives the isolating switch (20) to switch to an open state. Under the action of the wire control unit (60), the control wire can move unidirectionally from the counterweight (40) to the winding unit (50).

3. The high voltage vacuum circuit breaker according to claim (2), characterized in that: The line control unit (60) comprises a line control frame fixedly installed in a housing, the line control frame is rotatably connected with a main control wheel (610) and a line pressing guide wheel (630), the line control frame is provided with a line control guide groove (650), the line control guide groove (650) comprises a vertical section and an inclined section, the inclined direction of the inclined section is toward the main control wheel (610), a resistance wheel (620) is slidably matched in the line control guide groove (650), the surface of the resistance wheel (620) is set to be a rough surface, when the resistance wheel (620) enters the inclined section, the resistance wheel (620) and the main control wheel (610) clamp the control line, the control line is drawn out from the winding drum, and then enters the area between the main control wheel (610) and the resistance wheel (620) from the lower end of the resistance wheel (620), and is connected to the counterweight (40) under the guidance of the line pressing guide wheel (630).

4. The high voltage vacuum circuit breaker according to claim (3), characterized in that: A pressure plate (640) that can move in a vertical direction is slidably arranged on the wire control frame, and the pressure plate (640) is located at the upper end of the resistance wheel (630). The resistance wheel (630) extends to the outer side of the control line to form a protrusion, and the pressure plate (640) applies downward pressure to the protrusion; a control rod (70) that can slide along its own axis direction is movably arranged in the frame, and a control switch (720) is arranged between the control rod (70) and the wire control unit (60). The control switch (720) can receive the thrust of the control rod (70) and push the pressure plate (640) to move downward. One end of the control rod (70) extends to the outside of the shell, and the other end is located in the shell and is connected to a relay (710). After power is turned on, the relay (710) pulls the control rod (70) to move inward and transmits a downward force to the pressure plate (640).

5. The high voltage vacuum circuit breaker according to claim (4), characterized in that: The control switch (720) includes a control base (721) fixedly mounted on the frame, a control slide plate (722) capable of sliding in a vertical direction is slidably arranged on the control base (721), a control spring is arranged between the control base (721) and the control slide plate (722), the elastic force provided by the control spring is used to push the control slide plate (722) to move upward and deviate from the pressure plate (640), a pressing base surface is arranged on the control slide plate (722), a moving block (723) is fixedly arranged on the control rod (70), and a pushing base surface matching the pressing base surface is arranged on the moving block (723), and the thrust transmitted by the control rod (70) to the moving block (723) can enable the moving block (723) to push the pressure plate (640) to move downward.

6. The high voltage vacuum circuit breaker according to claim (5), characterized in that: The control rod (70) is provided with an annular protrusion, and a return spring is sleeved on the control rod (70), one end of the return spring abuts against the wire control frame, and the other end abuts against the annular protrusion, and the elastic force provided by the return spring is used to push the control rod (70) to move outward.

7. The high voltage vacuum circuit breaker according to claim (1), characterized in that: The isolating switch (20) comprises a main control rod (22) hinged to a housing, a traction rod (21) hinged between the main control rod (22) and the lower end of the vacuum switch (10), one end of the traction rod (21) is hinged to the middle position of the main control rod (22), and the other end is hinged to the driving end of the vacuum switch (10), a tension spring (23) is arranged between the housing and the main control rod (22), the elastic force provided by the tension spring (23) is used to pull the main control rod (22) to deflect upward, and the suspended end of the main control rod (22) is connected to a counterweight (40) through a traction line.

8. The high voltage vacuum circuit breaker according to claim (7), characterized in that: A line-combining unit (30) for combing the traction line is arranged in the housing.

9. The high voltage vacuum circuit breaker according to claim (8), characterized in that: The line-aligning unit (30) comprises a line-aligning base (31) fixedly arranged in a housing (10); a line-aligning slide plate (32) slidingly arranged on the line-aligning base (31) and sliding in a horizontal direction; a line-aligning spring is arranged between the line-aligning base (31) and the line-aligning slide plate (32); one end of the line-aligning spring abuts against the line-aligning base (31) and the other end abuts against the line-aligning slide plate (32); the elastic force provided by the line-aligning spring is used to push the line-aligning slide plate (32) away from the counterweight (40); and an avoidance notch for the traction line to pass through is arranged on the line-aligning slide plate (32).

10. The high voltage vacuum circuit breaker according to claim (8), characterized in that: A main shaft capable of rotating around its own axis is movably arranged in the housing, and the winding unit (50) comprises a winding wheel fixedly sleeved on the main shaft, and the winding wheel can be driven to rotate synchronously and a winding operation can be realized by applying a rotational force to the main shaft.

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