Outdoor high-voltage switch cabinet

Abstract

The utility model provides an outdoor high-voltage switch cabinet, and relates to the technical field of electrical equipment. The outdoor high-voltage switch cabinet comprises a high-voltage switch cabinet body, a cable chamber and an instrument chamber, the cable chamber and the instrument chamber are both arranged in the high-voltage switch cabinet body, the two sides of the high-voltage switch cabinet body are both provided with first openings, the two sides of the high-voltage switch cabinet body are both provided with access doors, and the access doors are matched with the first openings; two movable frames are installed in the high-voltage switch cabinet in a sliding mode, the two ends, away from each other, of the two movable frames are hinged to the two access doors respectively, a second screw rod and a first screw rod are rotatably installed in the high-voltage switch cabinet, and the ends, close to each other, of the second screw rod and the first screw rod are fixedly connected. The outdoor high-voltage switch cabinet provided by the utility model has the advantages that the outdoor high-voltage switch cabinet is convenient to use and simple to operate, and maintenance personnel can conveniently maintain the outdoor high-voltage switch cabinet, so that potential safety hazards can be found in time.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to an outdoor high-voltage switchgear. Background Technology

[0002] Outdoor high-voltage switchgear is an electrical device used in outdoor power systems. Its main function is to control, protect, and monitor power lines under rated voltage. It can disconnect or connect circuits, and automatically disconnect the circuit when faults such as overload or short circuit occur, protecting the equipment and line safety. It can also monitor operating parameters such as current and voltage in real time. The cabinet is generally made of metal, with good sealing and mechanical strength. Inside, there are various electrical components such as circuit breakers, disconnect switches, instrument transformers, surge arresters, and busbars. Different components work together to achieve various functions.

[0003] Traditionally, when maintaining outdoor high-voltage switchgear, maintenance personnel can only operate by opening the front or back door. Some components located deep inside the switchgear near the sides are difficult to access, especially when carrying tools or when multiple people need to enter for complex maintenance. The narrow switchgear makes operation inconvenient and affects the maintenance progress. In addition, the ordinary door opening method can block the view inside the cable room. During inspections, it is difficult for maintenance personnel to observe the inside of the switchgear, which is not conducive to the timely detection of potential safety hazards.

[0004] Therefore, it is necessary to provide an outdoor high-voltage switchgear to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide an outdoor high-voltage switchgear that is easy to use, simple to operate, and convenient for maintenance personnel to perform maintenance, thereby enabling timely detection of potential safety hazards.

[0006] To solve the above-mentioned technical problems, the present invention provides an outdoor high-voltage switchgear, comprising: a high-voltage switchgear, a cable compartment, and an instrument compartment. The cable compartment and the instrument compartment are both located within the high-voltage switchgear. The high-voltage switchgear has first openings on both sides, and inspection doors are provided on both sides, each door being adapted to one of the first openings. Two movable frames are slidably installed inside the high-voltage switchgear, with their ends hinged to the two inspection doors. A second screw and a first screw are rotatably installed inside the high-voltage switchgear, with their ends fixedly connected. A first servo motor is fixedly installed on the inner wall of the cable compartment. Pulleys are fixedly installed on the output shaft of the first servo motor and on the outer side of the second screw. The same belt is fitted onto the outer sides of the two pulleys. Two knobs are rotatably installed on each of the two inspection doors. A connecting groove is provided inside the high-voltage switchgear, with two slots on the inner wall of the connecting groove, and the connecting groove communicating with the slots. The end of each knob near the first servo motor extends into the connecting groove and is fixedly fitted with a locking rod.

[0007] Preferably, a connecting limiting block is fixedly installed at one end of the second screw near the first screw, and the first screw is fixedly connected to the second screw through the connecting limiting block.

[0008] Preferably, a bearing is rotatably mounted on the outer side of the button cover, and the outer wall of the bearing is fixedly connected to the inspection door.

[0009] Preferably, the threads of the first screw and the second screw are arranged opposite to each other.

[0010] Preferably, two water collection tanks are fixedly installed on the bottom inner wall of the cable chamber. Each of the two water collection tanks has a water outlet on one side. A filter plate and a partition are hinged to the top of each of the two water collection tanks. Fixing holes are provided on the filter plate and the water collection tank. The two fixing holes are connected and have the same fixing bolt inside. Four second filter screens and a concentrator plate are fixedly installed inside the filter plate. A connecting hole is provided at the bottom of the concentrator plate. Multiple adsorption columns and two fans are fixedly installed on the side of the two filter plates that are far apart from each other and the side that are close to each other, respectively. An isolation frame is fixedly installed on the side of the two inspection doors that are close to the filter plates. Two first filter screens are fixedly installed inside the isolation frame. A cleaning brush is provided between the two first filter screens. A pull rod is provided at the top of the isolation frame. The bottom end of the pull rod extends into the isolation frame and is fixedly connected to the cleaning brush.

[0011] Preferably, the filter plate has a second opening at the top and one side of the concentrator plate, and each of the two second openings is provided with a cover plate.

[0012] Preferably, each of the two filter plates is provided with a water inlet trough on the side away from each other, and a plurality of adsorption columns are fixedly installed in the water inlet trough. A water inlet rope is also fixedly installed in the water inlet trough, and the bottom end of the water inlet rope extends into the water collection trough and contacts the bottom inner wall of the water collection trough.

[0013] Preferably, a smoke sensor and a second pipe are fixedly installed on the top inner wall of the instrument room. Multiple nozzles are fixedly installed at the bottom of the second pipe. A cylinder is fixedly installed on the top of the high-voltage switchgear. A first pipe is fixedly installed at both the outlet and inlet ends of the cylinder. The other end of the first pipe located at the outlet end of the cylinder extends into the instrument room and is fixedly connected to the second pipe. An electronic valve is fixedly installed on the first pipe. The two isolation frames have third openings on both sides and the top. A blocking plate is provided on both sides of the isolation frame. A fourth screw and a third screw are rotatably installed on the top of the isolation frame. The ends of the fourth screw and the third screw that are close to each other are fixedly connected. A second servo motor is fixedly installed on the top of the isolation frame. The other end of the second servo motor is fixedly connected to the output shaft of the second servo motor. Connecting ears are threaded to the outer sides of the fourth screw and the third screw. The bottom end of the connecting ear extends into the isolation frame and is fixedly connected to the blocking plate.

[0014] Preferably, the threads of the fourth screw and the third screw are arranged opposite to each other.

[0015] Preferably, the bottom inner wall of the isolation frame is provided with a guide groove, and the bottom of each of the two nozzles is rotatably mounted with a guide roller, which is located in the guide groove.

[0016] Compared with related technologies, the outdoor high-voltage switchgear provided by this utility model has the following beneficial effects:

[0017] This utility model provides an outdoor high-voltage switchgear. Through the cooperation of a movable frame, inspection door, pulley, second screw, connecting limit block, first screw, belt, first servo motor, button cover, bearing, locking rod, connecting groove and locking slot, it is convenient for maintenance personnel to operate when the button cover is rotated and the inspection door is opened. When repairing the equipment, it is easier to access the internal cables and components, avoiding the restriction of operating space and movement as in traditional methods. Secondly, it is convenient for maintenance personnel to carry tools or testing equipment into the switchgear, enabling them to discover potential safety hazards more quickly. When the two movable frames drive the two inspection doors outward, they can improve the ventilation conditions inside the switchgear, which is conducive to dissipating the heat generated during equipment operation while repairing. At the same time, it can also increase the internal lighting, allowing maintenance personnel to observe the equipment status more clearly and reduce operational errors caused by insufficient light.

[0018] The combination of an isolation frame, a first filter, a water collection tank, a fan, a filter plate, a second filter, a concentrator plate, water outlet holes, and fixing holes prevents dust and other impurities from entering the high-voltage switchgear, reducing internal dust accumulation and preventing dust buildup from reducing the insulation performance of electrical equipment and causing flashover faults. This ensures good insulation of the electrical equipment. Secondly, due to the large humidity fluctuations in the outdoor environment, moisture can cause equipment to become damp and corrode, leading to short circuits and other safety hazards. Placing silica gel desiccant in the concentrator plate removes most of the moisture in the air, ensuring dry air inside the switchgear and the normal operation of electrical components. The combination of a pull rod, a dust cleaning brush, an adsorption column, a connecting hole, and a water-guiding rope prevents moisture from entering. The adsorption column, with its fine cotton fibers on the outside, absorbs moisture and drains it into the water collection tank via the water-guiding rope, thus preventing moisture from entering the cable chamber. Pulling the pull rod up and down cleans the dust accumulated on the surface of the first filter, preventing excessive accumulation that could affect its air permeability and dust isolation effect.

[0019] By coordinating the cylinder, first pipe, electronic valve, second pipe, smoke sensor, and nozzles, when a fire occurs in the instrument room, the smoke sensor activates and opens the electronic valve, and the nozzles begin spraying heptafluoropropane extinguishing agent to control or extinguish the fire before it spreads, thus preventing serious damage to the instruments. Since the instruments are crucial for the normal monitoring and control of the switchgear, preventing them from being burned ensures the switchgear can continue to operate normally and maintain the stable operation of the power system. Through the coordination of the blocking plates, second servo motor, fourth screw, third screw, connecting lugs, and guide rollers, the second servo motor starts simultaneously with the smoke sensor, and the oxygen supply is cut off through the two blocking plates, causing the flames to extinguish due to lack of oxygen. This is especially beneficial for precision instruments and electrical components in the instrument room, preventing further damage to these devices from the fire. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of the first embodiment of the outdoor high-voltage switchgear provided by this utility model;

[0021] Figure 2 for Figure 1 The diagram shows a rear sectional view of the structure.

[0022] Figure 3 for Figure 1 A schematic diagram showing the outdoor high-voltage switchgear with the inspection doors on both sides in the open position.

[0023] Figure 4 for Figure 1 The diagram shows a partial structural representation.

[0024] Figure 5 for Figure 4 The diagram shown is a schematic representation of the unfolded structure.

[0025] Figure 6 for Figure 1 The diagram shows a cross-sectional view of the access door and the high-voltage switchgear.

[0026] Figure 7 for Figure 6 Another visual cross-sectional view showing the cooperation between the access door and the high-voltage switchgear;

[0027] Figure 8 A schematic diagram of the structure of the second embodiment of the outdoor high-voltage switchgear provided by this utility model;

[0028] Figure 9 for Figure 8 The diagram shows a partial structural representation.

[0029] Figure 10 for Figure 9 The diagram shows a partial sectional view of the structure.

[0030] Figure 11 for Figure 9 The diagram shows a partial structural representation.

[0031] Figure 12 for Figure 11 The diagram shows a cross-sectional view of the structure.

[0032] Figure 13 A schematic diagram of the third embodiment of the outdoor high-voltage switchgear provided by this utility model;

[0033] Figure 14 for Figure 13 The diagram shows a rear sectional view of the instrument room.

[0034] Figure 15 for Figure 13 The diagram shows a partial structural representation.

[0035] Figure 16 for Figure 15 The diagram shows a partial structural representation.

[0036] Figure 17 for Figure 16 The diagram shown is a bottom view of the two blocking plates in tandem.

[0037] Numbered in the diagram: 1. High-voltage switchgear; 2. Inspection door; 3. Cable compartment; 4. Button cover; 5. Guide roller; 6. Moving frame; 7. First screw; 8. Second screw; 9. First servo motor; 10. Pulley; 11. Belt; 12. Connecting limit block; 13. Bearing; 14. Locking rod; 15. Connecting groove; 16. Locking slot; 17. Filter plate; 18. Isolation frame; 19. Water outlet; 20. Water collection tank; 21. Baffle plate; 22. Fan; 23. 24. Cover plate; 25. Pull rod; 26. First filter screen; 27. Dust removal brush; 28. Water guide rope; 29. ​​Second filter screen; 30. Adsorption column; 31. Connecting hole; 32. Concentrating plate; 33. Fixing hole; 34. Blocking plate; 35. Cylinder; 36. First pipe; 37. Electronic valve; 38. Second pipe; 39. Nozzle; 40. Instrument compartment; 41. Smoke sensor; 42. Third screw; 43. Fourth screw; 44. Second servo motor; 45. Connecting lug. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] First embodiment:

[0040] Please refer to the following: Figures 1-7In the first embodiment of this utility model, the outdoor high-voltage switchgear includes: a high-voltage switchgear 1, a cable compartment 3, and an instrument compartment 39. The cable compartment 3 and the instrument compartment 39 are both located inside the high-voltage switchgear 1. The high-voltage switchgear 1 has first openings on both sides, and inspection doors 2 are provided on both sides of the high-voltage switchgear 1. The inspection doors 2 are adapted to the first openings. Two movable frames 6 are slidably installed inside the high-voltage switchgear 1. The two ends of the two movable frames 6, which are far apart from each other, are respectively hinged to the two inspection doors 2. A second screw 8 and a first screw 7 are rotatably installed inside the high-voltage switchgear 1. The ends of the second screw 8 and the first screw 7, which are close to each other, are fixedly connected. Since the threads of the first screw 7 and the second screw 8 are opposite, the two inspection doors 2 begin to move and move away from each other. A first servo motor 9 is fixedly installed on the inner wall of the cable compartment 3. Pulleys 10 are fixedly installed on the output shaft of the first servo motor 9 and on the outer side of the second screw 8. The outer sides of the two pulleys 10 are fitted with... On the same belt 11, two covers 4 are rotatably mounted on each of the two access doors 2. The high-voltage switchgear 1 has a connecting groove 15, and the inner wall of the connecting groove 15 has two slots 16 connected to it. One end of the cover 4 near the first servo motor 9 extends into the connecting groove 15 and is fixedly mounted with a locking rod 14. When the cover 4 is rotated, the locking rod 14 moves away from the slots 16 and rotates into the connecting groove 15. Then, the access door 2 is opened while the cover 4 is pulled out. This allows for the inspection and maintenance of the cable compartment 3. When the inspection door 2 is inconvenient for maintenance, the first servo motor 9 is started. The output shaft of the first servo motor 9 drives the pulley 10 to rotate, and through the belt 11, drives the pulley 10 on the second screw 8 to rotate, causing the second screw 8 and the first screw 7 to rotate simultaneously. At this time, the two inspection doors 2 begin to move and move away from each other, so that maintenance personnel can easily carry out maintenance inside the cable compartment 3. When opened, the interior lighting will also improve, allowing maintenance personnel to observe the equipment condition more clearly.

[0041] A connecting limiting block 12 is fixedly installed at one end of the second screw 8 near the first screw 7, and the first screw 7 is fixedly connected to the second screw 8 through the connecting limiting block 12.

[0042] A bearing 13 is rotatably mounted on the outer side of the button cover 4, and the outer wall of the bearing 13 is fixedly connected to the inspection door 2.

[0043] The threads of the first screw 7 and the second screw 8 are arranged opposite to each other. When the first screw 7 and the second screw 8 rotate, the two inspection doors 2 can move simultaneously and move away from each other, thus facilitating maintenance by multiple staff members on both sides.

[0044] The working principle of the outdoor high-voltage switchgear provided by this utility model is as follows:

[0045] This type of outdoor high-voltage switchgear is suitable for standalone outdoor operation, meaning it does not need to be connected with other high-voltage switchgear. When it is necessary to repair the cable components in the cable compartment 3, rotate the cover 4 to move the lever 14 away from the slot 16 and rotate it into the connecting slot 15. Then, while pulling out the cover 4, open the inspection door 2. At this time, maintenance personnel can repair and observe the relevant electrical equipment in the cable compartment 3.

[0046] When space is insufficient and the access door 2 is obstructive and inconvenient for maintenance, the first servo motor 9 is started. The output shaft of the first servo motor 9 drives the pulley 10 to rotate, and through the belt 11 drives the pulley 10 on the second screw 8 to rotate, so that the second screw 8 and the first screw 7 rotate simultaneously. Since the threads of the first screw 7 and the second screw 8 are set opposite, the two access doors 2 begin to move and move away from each other. When they have moved a certain distance, the first servo motor 9 is turned off. At this time, it is convenient for maintenance personnel to carry tools or testing equipment into the switch cabinet, and the internal lighting is improved, allowing maintenance personnel to observe the equipment status more clearly.

[0047] Compared with related technologies, the outdoor high-voltage switchgear provided by this utility model has the following beneficial effects:

[0048] The movable frame 6, inspection door 2, pulley 10, second screw 8, connecting limit block 12, first screw 7, belt 11, first servo motor 9, button cover 4, bearing 13, locking rod 14, connecting groove 15, and locking groove 16 work together to facilitate operation by turning the button cover 4 and opening the inspection door 2. This allows maintenance personnel to more easily access internal cables and components during equipment maintenance, avoiding the limitations on operating space and movement seen in traditional methods. Furthermore, it facilitates maintenance personnel bringing tools or testing equipment into the switch cabinet, enabling them to more quickly identify potential safety hazards. When the two movable frames 6 move the two inspection doors 2 outwards, they improve ventilation inside the switch cabinet, helping to dissipate heat generated during equipment operation while maintaining it. They also increase internal lighting, allowing maintenance personnel to better observe the equipment and reduce operational errors caused by insufficient light.

[0049] Second embodiment:

[0050] Based on the outdoor high-voltage switchgear provided in the first embodiment of this application, the second embodiment of this application proposes another type of outdoor high-voltage switchgear. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0051] The second embodiment of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0052] Please refer to the following: Figure 8-12 The outdoor high-voltage switchgear also includes two water collection tanks 20 fixedly installed on the bottom inner wall of the cable compartment 3. Each of the two water collection tanks 20 has a water outlet 19 on one side. A filter plate 17 and a partition plate 21 are hinged to the top of each of the two water collection tanks 20. The filter plate 17 and the water collection tanks 20 are each provided with fixing holes 32. The two fixing holes 32 are connected and contain the same fixing bolt. Four second filter screens 28 and a concentrator plate 31 are fixedly installed inside the filter plate 17. The bottom of plate 31 is provided with a connecting hole 30. Multiple adsorption columns 29 and two fans 22 are fixedly installed on the side of the two filter plates 17 that are far apart from each other and the side that are close to each other, respectively. An isolation frame 18 is fixedly installed on the side of the two inspection doors 2 that are close to the filter plates 17. Two first filter screens 25 are fixedly installed in the isolation frame 18. A dust cleaning brush 26 is provided between the two first filter screens 25. A pull rod 24 is provided on the top of the isolation frame 18. The bottom end of the pull rod 24 extends to the isolation frame. The filter plate 17 is fixedly connected to the cleaning brush 26 inside the frame 18. During maintenance, the fixing bolts in the fixing holes 32 can be removed, allowing the filter plate 17 to be laid flat to prevent obstruction of maintenance. After maintenance, the dust accumulated on the surface of the first filter screen 25 can be cleaned by pulling the lever 24 up and down to prevent excessive accumulation from affecting its air permeability. Then, the top and side covers 23 can be opened to remove the used silica gel desiccant and replace it with new silica gel desiccant. Then, the cover 23 is closed. When heat dissipation is required, the fan 22 draws air. Air is taken in and passes through the isolation frame 18. Impurities and dust are intercepted by the first filter screen 25. When the remaining air passes through the filter plate 17, some of the moisture in the air is absorbed by the adsorption column 29. Since the adsorption column 29 is provided with fine cotton fibers on the outside, it can absorb some moisture and concentrate the water in the water inlet tank. The water is introduced into the water collection tank 20 through the water inlet rope 27 and discharged through the water outlet 19. The remaining moisture is adsorbed by the silica gel desiccant in the concentration plate 31 and finally discharged through the connecting hole 30. Then, relatively clean air enters the cable chamber 3.

[0053] The filter plate 17 has a second opening at the top and one side of the central plate 31, and each of the two second openings is provided with a cover plate 23.

[0054] Each of the two filter plates 17 is provided with a water inlet groove on the side away from each other. Multiple adsorption columns 29 are fixedly installed in the water inlet groove. A water inlet rope 27 is also fixedly installed in the water inlet groove. When the adsorption column 29 adsorbs water, it can concentrate the water in the water inlet groove and introduce it into the water collection tank 20 through the water inlet rope 27. The bottom end of the water inlet rope 27 extends into the water collection tank 20 and contacts the bottom inner wall of the water collection tank 20.

[0055] When the temperature inside the cable compartment 3 is high and heat dissipation is required, the fan 22 is started. The fan 22 begins to draw air from outside the high-voltage switchgear 1. When the air passes through the isolation frame 18, impurities and dust in the air are intercepted by the first filter screen 25. When the remaining air passes through the filter plate 17, some of the moisture in the air is absorbed by the adsorption column 29. Since the outer side of the adsorption column 29 is equipped with fine cotton fibers, it can absorb some moisture and concentrate the water in the water inlet tank. The water is introduced into the water collection tank 20 through the water inlet rope 27 and discharged through the water outlet 19. The remaining moisture is adsorbed by the silica gel desiccant in the concentration plate 31 and finally discharged through the connecting hole 30. Then, relatively clean air enters the cable compartment 3. When it is necessary to clean the dust on the first filter screen 25, the pull rod 24 can be pulled at the same time as maintenance to move the cleaning brush 26 between the two first filters 25 and clean the dust. When it is necessary to process the silica gel desiccant and add new silica gel desiccant, the top is opened. With the cover plate 23 on one side, this utility model, through the setting of the above-mentioned components, prevents dust and other impurities from entering the high-voltage switchgear 1, reduces internal dust accumulation, prevents dust accumulation in the switchgear from reducing the insulation performance of electrical equipment and easily causing flashover and other faults, and ensures good insulation of electrical equipment. Secondly, due to the large humidity changes in the outdoor environment, the entry of moisture will cause the equipment to become damp and corroded, which will lead to safety hazards such as short circuits. When silica gel desiccant is placed in the central plate 31, most of the moisture in the air can be removed, ensuring that the air in the switchgear is dry and ensuring the normal operation of electrical components. The adsorption column 29 can prevent moisture from entering. Since the outer side of the adsorption column 29 is provided with fine cotton fibers, it can absorb moisture and discharge it into the water collection tank 20 through the water guide rope 27, thereby preventing moisture from entering the cable chamber 3. By pulling the pull rod 24 up and down, the dust accumulated on the surface of the first filter screen 25 can be cleaned to prevent excessive accumulation, which would affect its air permeability and dust isolation effect.

[0056] Third embodiment:

[0057] Based on the outdoor high-voltage switchgear provided in the second embodiment of this application, the third embodiment of this application proposes another type of outdoor high-voltage switchgear. The third embodiment is merely a preferred embodiment of the second embodiment, and the implementation of the third embodiment will not affect the separate implementation of the second embodiment.

[0058] The third embodiment of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0059] Please refer to the following: Figures 13-17 In the outdoor high-voltage switchgear provided in this embodiment, a smoke sensor 40 and a second pipe 37 are also fixedly installed on the top inner wall of the instrument room 39. Multiple nozzles 38 are fixedly installed at the bottom of the second pipe 37. A cylinder 34 is fixedly installed on the top of the high-voltage switchgear 1. A first pipe 35 is fixedly installed at both the outlet and inlet ends of the cylinder 34. The other end of the first pipe 35 located at the outlet end of the cylinder 34 extends into the instrument room 39 and is fixedly connected to the second pipe 37. An electronic valve 36 is fixedly installed on the first pipe 35. Both sides and the top of the two isolation frames 18 are provided with third openings. A blocking plate 33 is provided on both sides of each isolation frame 18. A fourth screw 42 and a third screw 41 are rotatably installed on the top of the isolation frame 18. 1. The two ends of the isolation frame 18 are fixedly connected. The top of the isolation frame 18 is fixedly installed with a second servo motor 43. The other end of the second servo motor 43 is fixedly connected to the output shaft of the second servo motor 43. The outer sides of the fourth screw 42 and the third screw 41 are threaded with connecting ears 44. The bottom end of the connecting ears 44 extends into the isolation frame 18 and is fixedly connected to the blocking plate 33. When the temperature in the instrument room 39 is high and causes a fire, the smoke sensor 40 is activated and the electronic valve 36 is opened. At this time, the nozzle 38 sprays heptafluoropropane extinguishing agent to control and extinguish the fire, avoiding serious damage to the instrument. At the same time as the electronic valve 36 is opened, the second servo motor 43 is also triggered to open and blocks the isolation frame 18 through the two blocking plates 33, thereby cutting off the oxygen supply and extinguishing the flame due to lack of oxygen.

[0060] The threads of the fourth screw 42 and the third screw 41 are arranged opposite to each other. The two blocking plates 33 begin to move relative to each other and block the isolation frame 18 to prevent air from entering the cable chamber 3.

[0061] The bottom inner wall of the isolation frame 18 is provided with a guide groove, and the bottom of the two nozzles 38 are rotatably mounted with guide rollers 5. The guide rollers 5 are located in the guide groove. The direction of movement of the blockage plate 33 can be controlled by the guide rollers 5 to avoid shaking and deviation during movement, which would prevent the oxygen supply from being completely cut off.

[0062] In this embodiment, when a short circuit occurs in the components or cables within the instrument compartment 39, leading to a fire, the smoke sensor 40 is activated, and the electronic valve 36 is triggered and opened. At this time, the heptafluoropropane extinguishing agent in the cylinder 34 is transported to the second pipe 37 through the first pipe 35 and sprayed out through the nozzle 38 to control or extinguish the fire, preventing serious damage to the instruments. Simultaneously, when the smoke sensor 40 is activated, the second servo motor 43 is also triggered and turned on. The second servo motor 43 drives the fourth screw 42 and the third screw 41 to rotate through the output shaft. Since the threads of the fourth screw 42 and the third screw 41 are arranged oppositely, the two blocking plates 33 begin to move relative to each other and block the isolation frame 18 to prevent air from entering the cable compartment 3. Inside, through the aforementioned components, when a fire occurs in the instrument room 39, the smoke sensor 40 is activated and the electronic valve 36 is opened, and the nozzle 38 begins to spray heptafluoropropane extinguishing agent, controlling or extinguishing the fire before it spreads, thereby preventing serious damage to the instruments. Since the instruments are crucial for the normal monitoring and control of the switch cabinet, preventing them from being burned ensures that the switch cabinet can continue to work normally and maintain the stable operation of the power system. At the same time as the smoke sensor 40 is activated, the second servo motor 43 is also activated, and the oxygen supply is cut off through the two blocking plates 33, which can extinguish the flames due to lack of oxygen. Especially for the precision instruments and electrical components in the instrument room 39, it can prevent the fire from further damaging these devices.

[0063] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An outdoor high-voltage switchgear, comprising a high-voltage switchgear, a cable compartment, and an instrument compartment, wherein the cable compartment and the instrument compartment are both located within the high-voltage switchgear, characterized in that: The high-voltage switchgear has a first opening on both sides, and an inspection door on each side. The inspection door is adapted to the first opening. Two movable frames are slidably installed inside the high-voltage switchgear, and the two ends of the two movable frames that are far apart from each other are respectively hinged to the two inspection doors. A second screw and a first screw are rotatably installed inside the high-voltage switchgear, and the ends of the second screw and the first screw that are close to each other are fixedly connected. A first servo motor is fixedly installed on the inner wall of the cable compartment. Pulleys are fixedly installed on the output shaft of the first servo motor and on the outside of the second screw. The same belt is fitted on the outside of the two pulleys. Two button covers are rotatably installed on each of the two inspection doors. A connecting groove is provided inside the high-voltage switchgear. The inner wall of the connecting groove has two slots, and the connecting groove is connected to the slots. The end of the button cover near the first servo motor extends into the connecting groove and is fixedly installed with a locking rod.

2. The outdoor high-voltage switchgear according to claim 1, characterized in that, A connecting limiting block is fixedly installed at one end of the second screw near the first screw, and the first screw is fixedly connected to the second screw through the connecting limiting block.

3. The outdoor high-voltage switchgear according to claim 1, characterized in that, A bearing is rotatably mounted on the outer side of the button cover, and the outer wall of the bearing is fixedly connected to the inspection door.

4. The outdoor high-voltage switchgear according to claim 1, characterized in that, The threads of the first screw and the second screw are arranged in opposite directions.

5. The outdoor high-voltage switchgear according to claim 1, characterized in that, Two water collection tanks are fixedly installed on the bottom inner wall of the cable chamber. Each of the two water collection tanks has a water outlet on one side. A filter plate and a partition are hinged to the top of each of the two water collection tanks. The filter plate and the water collection tank are provided with fixing holes. The two fixing holes are connected and have the same fixing bolt inside. Four second filter screens and a concentrator plate are fixedly installed inside the filter plate. The bottom of the concentrator plate has a connecting hole. Multiple adsorption columns and two fans are fixedly installed on the side of the two filter plates that are far apart from each other and the side that are close to each other, respectively. An isolation frame is fixedly installed on the side of the two inspection doors that are close to the filter plates. Two first filter screens are fixedly installed inside the isolation frame. A cleaning brush is provided between the two first filter screens. A pull rod is provided on the top of the isolation frame. The bottom end of the pull rod extends into the isolation frame and is fixedly connected to the cleaning brush.

6. The outdoor high-voltage switchgear according to claim 5, characterized in that, The filter plate has a second opening at the top and one side of the central plate, and each of the two second openings is provided with a cover plate.

7. The outdoor high-voltage switchgear according to claim 5, characterized in that, Each of the two filter plates is provided with a water inlet trough on the side away from each other. Multiple adsorption columns are fixedly installed in the water inlet trough. A water inlet rope is also fixedly installed in the water inlet trough. The bottom end of the water inlet rope extends into the water collection trough and contacts the bottom inner wall of the water collection trough.

8. The outdoor high-voltage switchgear according to claim 5, characterized in that, A smoke sensor and a second pipe are fixedly installed on the top inner wall of the instrument room. Multiple nozzles are fixedly installed at the bottom of the second pipe. A cylinder is fixedly installed on the top of the high-voltage switchgear. A first pipe is fixedly installed at both the outlet and inlet ends of the cylinder. The other end of the first pipe at the outlet end of the cylinder extends into the instrument room and is fixedly connected to the second pipe. An electronic valve is fixedly installed on the first pipe. The two isolation frames have third openings on both sides and the top. A blocking plate is provided on both sides of the isolation frame. A fourth screw and a third screw are rotatably installed on the top of the isolation frame. The ends of the fourth screw and the third screw that are close to each other are fixedly connected. A second servo motor is fixedly installed on the top of the isolation frame. The other end of the second servo motor is fixedly connected to the output shaft of the second servo motor. Connecting ears are threaded to the outer sides of the fourth screw and the third screw. The bottom end of the connecting ear extends into the isolation frame and is fixedly connected to the blocking plate.

9. The outdoor high-voltage switchgear according to claim 8, characterized in that, The threads of the fourth screw and the third screw are arranged in opposite directions.

10. The outdoor high-voltage switchgear according to claim 8, characterized in that, The bottom inner wall of the isolation frame is provided with a guide groove, and the bottom of each of the two nozzles is rotatably mounted with a guide roller, which is located in the guide groove.

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