A disconnecting switch and its usage method

Abstract

This invention provides a disconnecting switch and its usage method, belonging to the technical field of disconnecting switches. It includes a crossarm, insulating columns, a first terminal frame, a second terminal frame, conductive components, and a lifting mechanism. The crossarm has multiple positioning holes at its upper end. Two insulating columns are fixedly connected to the upper end of the crossarm. The first terminal frame is fixedly connected to the upper end of one of the insulating columns, and its end near the other insulating column has a first hollow section, within which a positioning shaft is rotatably connected. The servo motor, worm gear, and worm wheel are housed within a waterproof space, effectively preventing rainwater erosion and extending service life. Furthermore, under the movable structure of the first and second hinge shafts, the lifting mechanism can shift accordingly when the conductive arm moves, making it more rational than a pulley structure, less prone to jamming, and improving safety.

Description

Technical Field

[0001] This invention belongs to the field of disconnecting switch technology, specifically relating to a disconnecting switch and its usage method. Background Technology

[0002] A disconnecting switch is a switching device mainly used for "isolating power supply, switching operations, and connecting and disconnecting small current circuits". It does not have an arc-extinguishing function. When the disconnecting switch is in the open position, there is an insulation distance between the contacts that meets the specified requirements and a clear disconnection mark. When the disconnecting switch is in the closed position, it can carry the current under normal circuit conditions and the current under abnormal conditions for a specified time.

[0003] Existing technologies disclose several patent documents related to disconnecting switches. Chinese patent application number CN202122894922.X discloses a vertically opening disconnecting switch, including a base frame with two insulators fixedly mounted on it. A main conductive base and a stationary contact base are fixedly mounted on the two insulators, respectively. Both the main conductive base and the stationary contact base are U-shaped structures. A conductive arm is movably hinged to the opening of the main conductive base. A lifting mechanism is slidably mounted on the base frame, with a top rod fixedly mounted at its upper end. One end of the top rod is movably hinged to the middle of the conductive arm. The lifting mechanism controls the raising and lowering of the top rod, controlling the vertical opening and closing action of the conductive arm and the stationary contact base. This invention eliminates the gear structure, and the screw motor in the lifting mechanism is not exposed, preventing rainwater corrosion and extending the equipment's service life. Simultaneously, the mechanism operates with low noise. The lifting mechanism allows for convenient control of the conductive arm's opening and closing action on the stationary contact base, simplifying operation.

[0004] Currently, most electrically operated mechanisms for high-voltage disconnect switches and grounding switches use motor-driven gear and worm gear reducers. These gears and reducers are exposed to the elements and susceptible to rain corrosion, affecting their lifespan. Furthermore, in the aforementioned solutions, a limit roller is used in conjunction with a lifting mechanism. When the lifting mechanism moves the conductive arm, the position of the lifting mechanism changes, and the limit roller moves with it. In actual use, prolonged use can easily cause the limit roller to deform and become stuck in the groove, affecting normal operation and posing a safety hazard. Therefore, we propose a disconnect switch and its operating method. Summary of the Invention

[0005] The purpose of this invention is to provide a disconnecting switch and its usage method, aiming to solve the problem in the prior art that uses a gear and worm gear reduction device driven by an electric motor, where the gear and worm gear reduction device are exposed to the outside, making them susceptible to rainwater corrosion, affecting service life, affecting normal use, and posing certain safety hazards.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A disconnecting switch and its usage method, comprising: The crossbeam has multiple positioning holes at its upper end; There are two insulating columns, both of which are fixedly connected to the upper end of the crossarm; The first electrical connection frame is fixedly connected to the upper end of one of the insulating pillars, and a first hollow part is provided at the end of the frame near the other insulating pillar. A positioning shaft is rotatably connected inside the first hollow part. The second electrical connection frame is fixedly connected to the upper end of another insulating column, and a second hollow part is provided at the end of the first electrical connection frame. A conductive component, disposed between the first and second hollow portions, is used to connect the first and second hollow portions to switch current on and off; and The lifting mechanism, located between two insulating pillars, pushes the conductive arm to move so that the connecting rod contacts and separates from the second hollow part, thereby achieving the purpose of connecting and disconnecting the current.

[0007] In a preferred embodiment of the present invention, the conductive component includes a conductive arm and a receiving rod, one end of the conductive arm is rotatably connected to the circumferential surface of the positioning shaft, and the receiving rod is fixedly connected to the other end of the conductive arm.

[0008] As a preferred embodiment of the present invention, the lifting mechanism includes: The first hinge shaft, one end of which is fixedly connected to the upper end of the crossarm, is located between two insulating posts; The protective box is fixedly connected to the other end of the first hinge shaft; The upper connecting tube is fixedly connected to the upper end of the protective box; The protective sleeve is slidably connected to the surface of the upper connecting cylinder; The second hinge shaft has one end fixedly connected to the lower end of the conductive arm and the other end fixedly connected to the upper end of the protective sleeve. A lifting assembly, located within the upper connecting cylinder, is used to move the protective sleeve up and down, thereby moving the conductive arm; and The drive component, located inside the protective box, is used to drive the lifting component.

[0009] In a preferred embodiment of the present invention, the lifting assembly includes a ball screw, a screw sleeve, a straight rod, and a reinforcing plate. The ball screw is rotatably connected between the lower inner wall of the protective box and the upper inner wall of the upper connecting cylinder. The screw sleeve is fitted onto the circumferential surface of the ball screw. The reinforcing plate is fixedly connected to the side of the screw sleeve. The straight rod is fixedly connected to the upper end of the reinforcing plate. The upper end of the upper connecting cylinder has an installation hole. The upper end of the straight rod passes through the installation hole and is fixedly connected to the protective sleeve.

[0010] In a preferred embodiment of the present invention, the drive assembly includes a servo motor, a worm gear, and a worm wheel. The servo motor is fixedly connected to the lower inner wall of the protective box, the worm gear is fixedly connected to the output end of the servo motor, and the worm wheel is fixedly connected to the circumferential surface of the ball screw. The worm gear and the worm wheel mesh with each other.

[0011] As a preferred embodiment of the present invention, the inner wall of the second hollow portion is fixedly connected to two arc-shaped plates, and the two arc-shaped plates are symmetrically arranged.

[0012] As a preferred embodiment of the present invention, the inner walls of the two arc-shaped plates near the second hollow portion are provided with extension portions, and springs are fixedly connected between the extension portions on the same side and the arc-shaped surfaces of the arc-shaped plates.

[0013] In a preferred embodiment of the present invention, a storage battery is fixedly connected to the lower inner wall of the protective box, and the servo motor is electrically connected to the storage battery.

[0014] In a preferred embodiment of the present invention, an inverter equipment box is fixedly connected to the upper end of the crossarm, a photovoltaic panel is fixedly connected to the side of the inverter equipment box, and the photovoltaic panel is electrically connected to the battery.

[0015] As a preferred embodiment of the present invention, the surface of the upper connecting cylinder and the inner wall of the protective sleeve are both smoothly polished.

[0016] As a preferred embodiment of the present invention, a method for using a disconnecting switch and its method of use includes the following steps: S1. The insulating column, the first junction frame, the second junction frame and other structures are fixed to the upper end of the crossarm by bolts, so that the protective box can rotate a certain angle under the connection of the first hinge shaft, and the protective sleeve can rotate a certain angle under the connection of the second hinge shaft. In the initial state, the junction rod is located on the upper side of the second hollow part. S2. When current needs to be connected, the servo motor is started, and the output end of the servo motor drives the worm gear to rotate. The worm gear drives the worm wheel to rotate, the worm wheel drives the ball screw to rotate, the ball screw drives the screw sleeve to move downward, the screw sleeve drives the reinforcing plate to move downward, the reinforcing plate drives the straight rod to move downward, the straight rod drives the protective sleeve to move downward, and the protective sleeve drives the end of the conductive arm near the second electrical receiving frame to move downward, so that the electrical receiving rod is inserted into the second hollow part. The electrical receiving rod moves and is stuck between the two arc plates. At this time, with the connection of the conductive arm and the electrical receiving rod, the current connection is realized. S3. When it is necessary to disconnect the current, similarly according to S2, the worm gear is driven to rotate through the output end of the servo motor, which in turn drives the connecting rod to move upward, causing the connecting rod to separate from the arc plate. At this time, the current is disconnected, thus realizing the current disconnection operation. Compared with the prior art, the beneficial effects of the present invention are: 1. In this solution, when current needs to be connected, the output end of the servo motor drives the worm gear to rotate, causing the connecting rod to insert into the second hollow part. The connecting rod moves and is locked between the two arc-shaped plates, making contact with the two arc-shaped plates. At this time, with the connection between the conductive arm and the connecting rod, the current is connected. This device forms a waterproof space through a protective box, upper connecting cylinder, and protective sleeve, and sets the servo motor, worm gear, worm wheel, and other structures inside the waterproof space, effectively avoiding rainwater corrosion and extending service life. Furthermore, under the action of the movable structure of the first and second hinge shafts, when the conductive arm moves, the lifting mechanism can shift accordingly, which is more reasonable than the pulley structure, less prone to jamming, and improves safety.

[0017] 2. In this solution, when the connecting pole is inserted between the two arc-shaped plates, both arc-shaped plates deform due to the connecting pole. Under the elastic action of the spring, a reaction force can be provided to the arc-shaped plates, so that after the connecting pole separates from the arc-shaped plates, the arc-shaped plates can return to their original shape under their own toughness and the action of the spring. This avoids the arc-shaped plates being difficult to recover after deformation, extends their service life, and ensures normal current flow.

[0018] 3. In this solution, the photovoltaic panels and inverter equipment box are used in combination to convert light energy into electrical energy, which charges the battery and further extends the driving range. Even in the event of a power outage, the servo motor can still be controlled, improving the safety of current transmission. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] In the attached diagram: Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a bottom view of the structure of the present invention; Figure 4 This is an exploded structural diagram of the present invention; Figure 5 This is a structural diagram of the second junction box of the present invention; Figure 6 This is a structural diagram of the arc-shaped plate of the present invention; Figure 7 This is a cross-sectional view of the protective box of the present invention; Figure 8 This is an exploded view of the lifting mechanism of the present invention.

[0021] The following are the labeling instructions in the diagram: 1. Crossarm; 101. Positioning hole; 2. Insulating post; 3. First junction box; 301. First hollow section; 302. Positioning shaft; 5. Second junction box; 501. Second hollow section; 6. Conductive arm; 7. Junction pole; 8. Photovoltaic panel; 9. Inverter equipment box; 10. First hinge shaft; 11. Protective box; 12. Upper connecting cylinder; 13. Protective sleeve; 14. Servo motor; 15. Worm gear; 16. Worm wheel; 17. Ball screw; 18. Screw sleeve; 19. Straight rod; 20. Second hinge shaft; 21. Reinforcing plate; 22. Mounting hole; 23. Arc plate; 24. Extension; 25. Spring; 26. Battery. 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] Example Please see Figures 1-8 The technical solution provided in this embodiment is as follows: A disconnecting switch and its method of use include a crossarm 1, insulating posts 2, a first terminal frame 3, a second terminal frame 5, a conductive component, and a lifting mechanism. The crossarm 1 has multiple positioning holes 101 at its upper end. Two insulating posts 2 are fixedly connected to the upper end of the crossarm 1. The first terminal frame 3 is fixedly connected to the upper end of one of the insulating posts 2, and has a first hollow portion 301 at its end near the other insulating post 2, with a positioning shaft 302 rotatably connected within the first hollow portion 301. The second terminal frame 5 is fixedly connected to the upper end of the other insulating post 2, and has a second hollow portion 501 at its end near the first terminal frame 3. The conductive component is disposed between the first hollow portion 301 and the second hollow portion 501, and is used to connect the first hollow portion 301 and the second hollow portion 501 to connect and disconnect the current. The lifting mechanism is disposed between the two insulating posts 2, and pushes the conductive arm 6 to move so that the terminal rod 7 contacts and separates from the second hollow portion 501, thereby achieving the purpose of connecting and disconnecting the current.

[0024] In a specific embodiment of the present invention, the positioning hole 101 is provided for installing bolts, thereby fixing the insulating column 2, the first connection frame 3, the first hinge shaft 10, and the inverter equipment box 9. The lifting mechanism is located on the lower side of the conductive arm 6. The first hinge shaft 10 and the second hinge shaft 20 are both movable structures. The positioning shaft 302 is the center of rotation of the conductive arm 6. The position of the connection rod 7 is close to the second hollow part 501. When current needs to be connected, the servo motor 14 is started, and the output end of the servo motor 14 drives the worm gear 15 to rotate. The worm gear 15 drives the worm wheel 16 to rotate. The worm wheel 16 drives the ball screw 17 to rotate. The ball screw 17 drives the screw sleeve 18 to move downward. The screw sleeve 18 drives the reinforcing plate 21 to move downward. The reinforcing plate 21 drives the straight rod 19 to move downward. The straight rod 19 drives the protective As the sleeve 13 moves downward, the protective sleeve 13 drives the conductive arm 6 to move downward near the end of the second power receiving frame 5, so that the power receiving rod 7 is inserted into the second hollow part 501. The power receiving rod 7 moves and is locked between the two arc plates 23. The power receiving rod 7 contacts the two arc plates 23. At this time, with the connection between the conductive arm 6 and the power receiving rod 7, the current is connected. This device forms a waterproof space through the protective box 11, the upper connecting cylinder 12 and the protective sleeve 13. The servo motor 14, worm gear 15, worm wheel 16 and other structures are set inside the waterproof space, which effectively avoids the corrosion of rainwater and extends the service life. In addition, under the action of the movable structure of the first hinge shaft 10 and the second hinge shaft 20, when the conductive arm 6 moves, the lifting mechanism can be offset accordingly. Compared with the pulley structure, it is more reasonable, less prone to jamming, and improves safety.

[0025] Specifically, the conductive component includes a conductive arm 6 and a receiving rod 7. One end of the conductive arm 6 is rotatably connected to the circumferential surface of the positioning shaft 302, and the receiving rod 7 is fixedly connected to the other end of the conductive arm 6.

[0026] In a specific embodiment of the present invention, both the conductive arm 6 and the connecting rod 7 are made of conductive material. The positioning shaft 302 is the center of movement of the conductive arm 6. The conductive arm 6 deflects around the positioning shaft 302. The connecting rod 7 is fixedly connected to one end of the conductive arm 6 near the second connecting frame 5. When the connecting rod 7 contacts the arc plate 23, the current is connected.

[0027] Specifically, the lifting mechanism includes a first hinge shaft 10, a protective box 11, an upper connecting cylinder 12, a protective sleeve 13, a second hinge shaft 20, a lifting assembly, and a drive assembly. Specifically: one end of the first hinge shaft 10 is fixedly connected to the upper end of the crossarm 1, located between two insulating posts 2; the protective box 11 is fixedly connected to the other end of the first hinge shaft 10; the upper connecting cylinder 12 is fixedly connected to the upper end of the protective box 11; the protective sleeve 13 is slidably connected to the surface of the upper connecting cylinder 12; one end of the second hinge shaft 20 is fixedly connected to the lower end of the conductive arm 6, and the other end is fixedly connected to the upper end of the protective sleeve 13; the lifting assembly is disposed within the upper connecting cylinder 12 and is used to push the protective sleeve 13 up and down, thereby pushing the conductive arm 6 to move; the drive assembly is disposed within the protective box 11 and is used to drive the lifting assembly to operate; the lifting assembly... The system includes a ball screw 17, a screw sleeve 18, a straight rod 19, and a reinforcing plate 21. The ball screw 17 is rotatably connected between the lower inner wall of the protective box 11 and the upper inner wall of the upper connecting cylinder 12. The screw sleeve 18 is fitted onto the circumferential surface of the ball screw 17. The reinforcing plate 21 is fixedly connected to the side of the screw sleeve 18. The straight rod 19 is fixedly connected to the upper end of the reinforcing plate 21. The upper end of the upper connecting cylinder 12 has a mounting hole 22. The upper end of the straight rod 19 passes through the mounting hole 22 and is fixedly connected to the protective sleeve 13. The drive assembly includes a servo motor 14, a worm gear 15, and a worm wheel 16. The servo motor 14 is fixedly connected to the lower inner wall of the protective box 11. The worm gear 15 is fixedly connected to the output end of the servo motor 14. The worm wheel 16 is fixedly connected to the circumferential surface of the ball screw 17. The worm gear 15 and the worm wheel 16 mesh with each other.

[0028] In a specific embodiment of the present invention, the lower end of the first hinge shaft 10 is fixed in the positioning hole 101 by bolts. Supported by the first hinge shaft 10 and the second hinge shaft 20, the protective box 11, the upper connecting cylinder 12, and the protective sleeve 13 form a waterproof space. The sealed space shifts as the conductive arm 6 rises and falls. When current needs to be applied, the servo motor 14 is started, and its output drives the worm gear 15 to rotate. The worm gear 15 drives the worm wheel 16 to rotate, the worm wheel 16 drives the ball screw 17 to rotate, and the ball screw 17 drives the screw sleeve 18 to move downwards. 18 drives the reinforcing plate 21 to move downwards, the reinforcing plate 21 drives the straight rod 19 to move downwards, the straight rod 19 drives the protective sleeve 13 to move downwards, and the protective sleeve 13 drives the conductive arm 6 to move downwards near the end of the second power receiving frame 5, so that the power receiving rod 7 is inserted into the second hollow part 501. The power receiving rod 7 moves and is stuck between the two arc plates 23. At this time, with the connection of the conductive arm 6 and the power receiving rod 7, the current is connected. The structure is reasonable. The servo motor 14, worm gear 15, worm wheel 16 and other structures are set inside the waterproof space, which effectively avoids the erosion of rainwater and extends the service life.

[0029] Specifically, the inner wall of the second hollow section 501 is fixedly connected to two arc-shaped plates 23, which are symmetrically arranged.

[0030] In a specific embodiment of the present invention, the arc-shaped plates 23 are all elastic arc-shaped structures with strong toughness. When the connecting rod 7 is inserted between the two arc-shaped plates 23, the two arc-shaped plates 23 are tightly fitted with the connecting rod 7 to ensure normal current flow.

[0031] Specifically, each of the two arc-shaped plates 23 has an extension 24 near the inner wall of the second hollow part 501, and a spring 25 is fixedly connected between the extension 24 on the same side and the arc surface of the arc-shaped plate 23.

[0032] In a specific embodiment of the present invention, when the connecting rod 7 is inserted between the two arc-shaped plates 23, both arc-shaped plates 23 deform due to the connecting rod 7. Under the elastic action of the spring 25, a reaction force can be provided to the arc-shaped plates 23, so that after the connecting rod 7 separates from the arc-shaped plates 23, the arc-shaped plates 23 can return to their original shape under their own toughness and the action of the spring 25, avoiding the difficulty of the arc-shaped plates 23 recovering after deformation and extending their service life.

[0033] Specifically, a battery 26 is fixedly connected to the lower inner wall of the protection box 11, and the servo motor 14 is electrically connected to the battery 26.

[0034] In a specific embodiment of the present invention, the storage battery 26 is provided to provide power to the servo motor 14 and extend its operating range.

[0035] Specifically, an inverter equipment box 9 is fixedly connected to the upper end of the crossarm 1, and a photovoltaic panel 8 is fixedly connected to the side of the inverter equipment box 9. The photovoltaic panel 8 is electrically connected to the battery 26.

[0036] In a specific embodiment of the present invention, the photovoltaic panel 8 and the inverter equipment box 9 are used together to convert light energy into electrical energy to charge the battery 26, further extending the battery life. Even in the event of a power outage, the servo motor 14 can be controlled, improving the safety of current transmission.

[0037] Specifically, the surface of the upper connecting sleeve 12 and the inner wall of the protective sleeve 13 are both smoothly polished.

[0038] In a specific embodiment of the present invention, the protective sleeve 13 slides on the surface of the upper connecting cylinder 12. The smooth polishing treatment can reduce friction and make the protective sleeve 13 move up and down more smoothly.

[0039] A disconnecting switch and its usage method include the following steps: S1. The insulating column 2, the first electrical connection frame 3, the second electrical connection frame 5 and other structures are fixed to the upper end of the crossarm 1 by bolts, so that the protective box 11 can rotate a certain angle under the connection of the first hinge shaft 10, and the protective sleeve 13 can rotate a certain angle under the connection of the second hinge shaft 20. In the initial state, the electrical connection rod 7 is located on the upper side of the second hollow part 501. S2. When current needs to be connected, the servo motor 14 is started. The output end of the servo motor 14 drives the worm gear 15 to rotate. The worm gear 15 drives the worm wheel 16 to rotate. The worm wheel 16 drives the ball screw 17 to rotate. The ball screw 17 drives the screw sleeve 18 to move downward. The screw sleeve 18 drives the reinforcing plate 21 to move downward. The reinforcing plate 21 drives the straight rod 19 to move downward. The straight rod 19 drives the protective sleeve 13 to move downward. The protective sleeve 13 drives the conductive arm 6 to move downward near the end of the second power receiving frame 5, so that the power receiving rod 7 is inserted into the second hollow part 501. The power receiving rod 7 moves and is stuck between the two arc plates 23. At this time, with the connection of the conductive arm 6 and the power receiving rod 7, the current connection is realized. S3. When it is necessary to disconnect the current, similarly according to S2, the worm gear 15 is driven to rotate through the output end of the servo motor 14, which in turn drives the connecting rod 7 to move upward, so that the connecting rod 7 is separated from the arc plate 23. At this time, the current is disconnected, realizing the current disconnection operation.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A disconnecting switch, characterized in that, It includes a crossarm, insulating column, first junction box, second junction box, conductive components, and lifting mechanism; Multiple positioning holes are provided at the upper end of the crossarm; two insulating posts are provided, both of which are fixedly connected to the upper end of the crossarm. The first electrical connection frame is fixedly connected to the upper end of one of the insulating columns, and a first hollow part is provided at the end of the frame closest to the other insulating column. A positioning shaft is rotatably connected inside the first hollow part. The second electrical connector is fixedly connected to the upper end of another insulating column, and a second hollow part is provided at the end of the first electrical connector; A conductive component is disposed between the first hollow portion and the second hollow portion to connect the first hollow portion and the second hollow portion, thereby connecting and disconnecting the current; The lifting mechanism is located between two insulating columns and is used to push the conductive arm to move so that the connecting rod contacts and separates from the second hollow part, thereby achieving the purpose of connecting and disconnecting the current. The conductive component includes a conductive arm and a receiving rod. One end of the conductive arm is rotatably connected to the circumferential surface of the positioning shaft, and the receiving rod is fixedly connected to the other end of the conductive arm. The lifting mechanism includes a first hinge shaft, a protective box, an upper connecting cylinder, a protective sleeve, a second hinge shaft, a lifting assembly, and a drive assembly; One end of the first hinge shaft is fixedly connected to the upper end of the crossarm and located between two insulating posts, and the protective box is fixedly connected to the other end of the first hinge shaft. The upper connecting tube is fixedly connected to the upper end of the protective box, and the protective sleeve is slidably connected to the surface of the upper connecting tube; One end of the second hinge is fixedly connected to the lower end of the conductive arm, and the other end is fixedly connected to the upper end of the protective sleeve; The lifting assembly is located inside the upper receiving cylinder and is used to push the protective sleeve up and down, thereby pushing the conductive arm to move. The drive component is located inside the protective box and is used to drive the lifting component. The lifting assembly includes a ball screw, a screw sleeve, a straight rod, and a reinforcing plate. The ball screw is rotatably connected between the lower inner wall of the protective box and the upper inner wall of the upper connecting cylinder. The screw sleeve is fitted onto the circumferential surface of the ball screw. The reinforcing plate is fixedly connected to the side of the screw sleeve. The straight rod is fixedly connected to the upper end of the reinforcing plate. The upper end of the upper connecting cylinder has an installation hole. The upper end of the straight rod passes through the installation hole and is fixedly connected to the protective sleeve. The drive assembly includes a servo motor, a worm gear, and a worm wheel. The servo motor is fixedly connected to the lower inner wall of the protective box, the worm gear is fixedly connected to the output end of the servo motor, and the worm wheel is fixedly connected to the circumferential surface of the ball screw. The worm gear and the worm wheel mesh with each other. The protective box, upper sleeve, and protective sleeve form a waterproof space, and the servo motor, worm gear, and worm wheel are all located inside this waterproof space; under the action of the movable structure of the first and second hinge shafts, the lifting mechanism shifts accordingly when the conductive arm moves.

2. The disconnecting switch according to claim 1, characterized in that: The inner wall of the second hollow section is fixedly connected to two arc-shaped plates, which are arranged symmetrically.

3. The disconnecting switch according to claim 2, characterized in that: Both of the arc-shaped plates have extensions on their inner walls near the second hollow section, and springs are fixedly connected between the extensions on the same side and the arc-shaped surfaces of the arc-shaped plates.

4. The disconnecting switch according to claim 1, characterized in that: A battery is fixedly connected to the lower inner wall of the protective box, and the servo motor is electrically connected to the battery.

5. The disconnecting switch according to claim 4, characterized in that: An inverter equipment box is fixedly connected to the upper end of the crossarm, and a photovoltaic panel is fixedly connected to the side of the inverter equipment box. The photovoltaic panel is electrically connected to the battery.

6. The disconnecting switch according to claim 1, characterized in that: The surface of the upper connecting cylinder and the inner wall of the protective sleeve are both smoothly polished.

7. A method of using the disconnecting switch as described in claim 3, characterized in that, Includes the following steps: S1. The insulating column, the first junction frame, and the second junction frame are fixed to the upper end of the crossarm by bolts, so that the protective box can rotate at a certain angle under the connection of the first hinge shaft, and the protective sleeve can rotate at a certain angle under the connection of the second hinge shaft. In the initial state, the junction rod is located on the upper side of the second hollow part. S2. When current needs to be connected, the servo motor is started, and the output end of the servo motor drives the worm gear to rotate. The worm gear drives the worm wheel to rotate, the worm wheel drives the ball screw to rotate, the ball screw drives the screw sleeve to move downward, the screw sleeve drives the reinforcing plate to move downward, the reinforcing plate drives the straight rod to move downward, the straight rod drives the protective sleeve to move downward, and the protective sleeve drives the end of the conductive arm near the second electrical receiving frame to move downward, so that the electrical receiving rod is inserted into the second hollow part. The electrical receiving rod moves and is stuck between the two arc plates. At this time, with the connection of the conductive arm and the electrical receiving rod, the current connection is realized. S3. When it is necessary to disconnect the current, similarly according to S2, the worm gear is driven to rotate through the output end of the servo motor, which in turn drives the connecting rod to move upward, so that the connecting rod separates from the arc plate. At this time, the current is disconnected, thus realizing the current disconnection operation.

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