Fault self-detection type high-voltage power distribution cabinet

Abstract

The invention discloses a fault self-checking type high-voltage power distribution cabinet, and belongs to the technical field of power distribution cabinets, the fault self-checking type high-voltage power distribution cabinet comprises a main body, a reaction mechanism is installed on the inner side wall of the main body, the reaction mechanism comprises a water scraping plate and a water containing hopper, and a shielding mechanism is installed at the top of the inner wall of the main body. And the shielding mechanism comprises two strip-shaped blocks, a first supporting block and a plurality of second supporting blocks are arranged in each strip-shaped block in a sliding mode, and shielding cloth is installed at the bottoms of the two first supporting blocks and the bottoms of the second supporting blocks. By designing the reaction mechanism and the shielding mechanism, whether condensate water generated by internal and external temperature difference caused by working temperature in the high-voltage power distribution cabinet can be quickly detected and completely treated or not can be detected, and the condensate water at the top can be timely prevented from dripping into internal elements, so that the potential safety hazard of the internal elements is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of power distribution cabinets, and in particular relates to a fault self-detection type high-voltage power distribution cabinet. Background Art

[0002] High-voltage distribution cabinets are crucial equipment for accessing, distributing, protecting, and monitoring high-voltage electrical energy within power systems. They are widely used in industries such as power generation, metallurgy, mining, chemicals, and transportation, particularly in substations, power plants, and industrial production lines. Their primary function is to safely distribute and manage electrical energy through devices such as high-voltage switches, circuit breakers, and protective relays, ensuring stable power system operation. With technological advancements, high-voltage distribution cabinets have been continuously optimized in design and material application, gradually incorporating more advanced safety features such as isolation, heat dissipation, and fire protection. This has enhanced their stability and safety, and promoted the automation and intelligent development of power systems.

[0003] When high-voltage distribution cabinets are working, the increased load easily produces a temperature difference between the inside and outside. When existing high-voltage distribution cabinets are working, the internal temperature is higher than the external temperature, resulting in condensation water on the inner wall. However, the drying device cannot handle the excessive condensation water in time, causing the accumulated condensation water to drip onto the internal components of the high-voltage distribution cabinet, thereby causing safety hazards such as fire in the internal components. At the same time, the condensation water cannot be discharged quickly during maintenance, causing some components to be unable to be reactivated, resulting in excessive maintenance costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a fault self-detection type high-voltage power distribution cabinet.

[0005] The technical solution adopted to solve the above technical problems is: a fault self-detection type high-voltage power distribution cabinet, comprising a main body, wherein the inner side wall of the main body is equipped with a reaction mechanism for scraping condensed water on the inner side wall and reacting according to the amount of condensed water; The reaction mechanism includes a scraper and a water collecting bucket. The scraper scrapes the condensed water on the inner wall of the main body and drops it into the water collecting bucket. The amount of condensed water inside is reflected according to the height of the water collecting bucket. A shielding mechanism is installed on the top of the inner wall of the main body to shield the condensed water on the top of the main body to reduce safety hazards. The shielding mechanism includes two bar blocks, and a first support block and multiple second support blocks are slid inside the two bar blocks for expanding the shielding. Shielding cloths are installed at the bottom of the two first support blocks and multiple second support blocks for shielding dripping condensation water.

[0006] A cabinet door for detection is installed at the front end of the main body, a drying device for ensuring internal dryness is installed on one side of the outer wall of the main body, and internal components are installed inside the main body.

[0007] Furthermore, a driving mechanism is installed on the top of the main body to provide power for scraping condensed water on the inner wall. The driving mechanism includes a threaded rod, and a second T-shaped gear located outside the main body is installed on the top of the threaded rod, and a first T-shaped gear is engaged with the outer wall of the second T-shaped gear. By driving the first T-shaped gear to rotate, the threaded rod at the bottom of the second T-shaped gear is driven to rotate. The middle end of the wiper is threadedly connected to the threaded rod, and a driving shaft is installed at one end of the first T-shaped gear, and a motor located at the top of the main body is installed at the other end of the driving shaft. The driving shaft is driven to rotate by the motor, thereby causing the first T-shaped gear to rotate.

[0008] Through the above technical solution, when in use, after the high-voltage distribution cabinet has been used for a period of time, the driving mechanism can be used to provide power to conduct a condensation water standard test inside the high-voltage distribution cabinet. If the amount of condensation water reaches a certain amount, the interior of the high-voltage distribution cabinet can be quickly tested to prevent excessive condensation water from damaging the internal components of the high-voltage distribution cabinet. It should be understood that if the heat generated by the internal components of the high-voltage distribution cabinet during operation is higher than the external temperature, condensation water will be generated. Under this condition, the relevant system is first dried by a drying device to ensure internal dryness. At the same time, the hot air rises. Therefore, during the entire process, the heat at the top is higher than that on both sides. Therefore, when the condensation water on both sides is scraped off excessively by the driving mechanism, the condensation water on the top will inevitably drip. Therefore, this method is used to detect excessive condensation water inside the high-voltage distribution cabinet and then infer the cause. Specifically, the starting motor drives the drive shaft to rotate, causing the first T-type gear to rotate, and then the threaded rod at the bottom of the second T-type gear rotates, providing power for the subsequent scraping of condensation water on the inner wall of the main body.

[0009] Furthermore, two guide columns are slidably connected to one side of the water trough plane, and the outer walls of the two guide columns are installed with springs located at the bottom of the water trough and the main body. The outer walls of the two guide columns are installed with fixed blocks whose other ends are fixed to the inner wall of the main body. As the water trough gradually contains condensed water, the corresponding springs are pressed downward between the two guide columns and the main body.

[0010] Through the above technical solution, when the driving mechanism starts to move, it will drive the reaction mechanism to operate, detect whether there is too much condensed water inside the high-voltage distribution cabinet, and make relevant responses to the condensed water. Specifically, when the threaded rod starts to rotate, it will drive the scraper to rise and fall along the inside of the high-voltage distribution cabinet to scrape. When there is condensed water inside the distribution cabinet, the condensed water will flow along the high-voltage distribution cabinet into the water bucket. The water bucket will carry the gravity of the condensed water and gradually move downward between the two guide columns and the main body. In addition, after the fault detection is completed and the condensed water inside the water bucket is processed, the spring will reset the water bucket due to its elastic potential energy. It should be understood that the elastic potential energy of the spring can only support the mass of the empty water bucket.

[0011] Furthermore, a connecting mechanism is installed on the other side of the outer wall of the main body for linking the reaction mechanism and the shielding mechanism to ensure the fault self-detection function while protecting the interior of the main body. The connecting mechanism includes a rack connected to the water bucket, and a slide groove for sliding the rack is provided on the surface of one side of the main body. A wire wheel is rotated on the surface of the other side of the outer wall of the main body, and a taut wire rope is rotated on the outer wall of the wire wheel. A plurality of teeth engaged with the rack are installed on the side of the outer wall of the wire wheel away from the wire rope. The rack is driven downward by the movement of the water bucket, and then the wire rope of the outer wall of the wire wheel is driven to rotate. Two first guide wheels located on the top of the wire wheel are installed on the surface of the other side of the outer wall of the main body, two second guide wheels for guiding the wire rope are installed inside the iron plate of the main body, and a third guide wheel for supporting the wire rope to form a closed loop is installed inside the main body.

[0012] Through the above technical solution, when there is condensed water inside the high-voltage distribution cabinet, the reaction mechanism will drive the connecting mechanism to move. Specifically, when the water bucket moves downward due to the gravity of the condensed water, it will drive the rack to move along the slide groove. At the same time, the rack will drive the wire wheel with multiple teeth to rotate, and then drive the closed-loop steel wire rope on the outer wall of the wire wheel to rotate along the two first guide wheels, the two second guide wheels and the third guide wheel, to respond to the condensed water inside the high-voltage distribution cabinet.

[0013] Furthermore, support bars are installed at the bottom of the two first support blocks and multiple second support blocks, and a connecting block fixed to the outer wall of the wire rope is sliding on the top of one of the support bars. A strip groove is opened on the top of one of the support bars for sliding the connecting block, and the rotation of the wire rope drives one of the support bars to slide to the other side of the main body, thereby causing the shielding cloth to unfold, and sliding wheels are installed on the front and rear surfaces of multiple second support blocks, and tracks are opened inside the two strip blocks for sliding of multiple sliding wheels.

[0014] Through the above technical solution, as the connecting mechanism moves, the shielding mechanism will be driven to shield the condensed water, preventing the condensed water on the top from dripping onto the internal components, thereby reducing safety hazards. Specifically, when the wire rope rotates, it will drive the connecting block on one of the support bars to slide to the other side of the main body, thereby driving the shielding cloth to unfold. Under the pull of the shielding cloth, the support bars connected by the multiple second support blocks are gradually unfolded along the tracks inside the two strip blocks, and flattened above the internal components, thereby achieving shielding of the top.

[0015] The beneficial effects of the present invention are as follows: (1) The present invention designs a driving mechanism, a reaction mechanism, a connecting mechanism and a shielding mechanism, so that the condensed water generated by the temperature difference between the inside and the outside of the high-voltage distribution cabinet due to the working temperature can be quickly detected and cleaned up, and the top condensed water can be prevented from dripping into the internal components in time, thereby reducing the safety hazards of the internal components. At the same time, the drying device can be detected according to the internal reaction to prevent the impact caused by the internal failure of the distribution cabinet, thereby realizing the self-detection function of the high-voltage distribution cabinet; (2) The present invention can realize the self-detection of the inner wall of the high-voltage distribution cabinet through the driving mechanism and the reaction mechanism. The reciprocating scraping motion enables the high-voltage distribution cabinet to be detected to see if there is condensed water on the inner wall, and to react promptly based on the condensed water to avoid complete hidden dangers; (3) The present invention can react promptly based on the amount of condensed water on the inner wall through the connecting mechanism and the shielding mechanism, and shield the condensed water on the top of the high-voltage distribution cabinet in time to avoid excessive condensed water dripping onto the internal components and causing fire and other faults. At the same time, the drying device in the high-voltage distribution cabinet can be repaired in time based on the internal reaction, or the internal components can be quickly detected based on abnormal phenomena in the high-voltage distribution cabinet to ensure the safe operation of the high-voltage distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention from a first perspective; Figure 2 It is a front view of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 yes Figure 3 A partial enlarged view of point A in the middle; Figure 5 It is a structural schematic diagram of the second viewing angle of the present invention; Figure 6 yes Figure 5 A partial enlarged view of point B in the middle; Figure 7 It is a schematic structural diagram of the driving mechanism and the wiper mechanism of the present invention; Figure 8 yes Figure 7 A partial enlarged view of point C in the middle; Figure 9 It is a structural schematic diagram of the shielding mechanism of the present invention; Figure 10 yes Figure 9 A partial enlarged view of point D in the middle.

[0017] Figure numerals: 11. main body; 12. cabinet door; 13. drying device; 14. internal components; 2. driving mechanism; 21. motor; 22. driving shaft; 23. first T-gear; 24. second T-gear; 25. threaded rod; 3. reaction mechanism; 31. wiper; 32. water hopper; 33. fixing block; 34. guide column; 35. spring; 4. connecting mechanism; 41. rack; 42. pulley; 43. gearing; 44. slide; 45. wire rope; 46. first guide wheel; 47. second guide wheel; 48. third guide wheel; 5. shielding mechanism; 51. connecting block; 52. strip block; 53. first support block; 54. second support block; 55. sliding wheel; 56. track; 57. support bar; 58. shielding cloth; 59. strip groove. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] like Figures 1-10As shown, a fault self-checking high-voltage distribution cabinet of this embodiment includes a main body 11, a cabinet door 12 for detection is installed at the front end of the main body 11, a drying device 13 for ensuring internal drying is installed on one side of the outer wall of the main body 11, an internal component 14 is installed inside the main body 11, and a driving mechanism 2 is installed on the top of the main body 11 for scraping condensed water on the inner wall to provide power. The driving mechanism 2 includes a threaded rod 25, a second T-shaped gear 24 located on the outside of the main body 11 is installed on the top of the threaded rod 25, and a first T-shaped gear 23 is engaged with the outer wall of the second T-shaped gear 24. By driving the first T-shaped gear 23 to rotate, the threaded rod 25 at the bottom of the second T-shaped gear 24 is driven to rotate. The middle end of the wiper 31 is threadedly connected to the threaded rod 25, a driving shaft 22 is installed at one end of the first T-shaped gear 23, and a motor 21 located at the top of the main body 11 is installed at the other end of the driving shaft 22. The driving shaft 22 is driven to rotate by the motor 21, thereby causing the first T-shaped gear 23 to rotate. When in use, when the high-voltage distribution cabinet is used for a period of time, this The driving mechanism 2 can be used to provide power to detect the condensation water quality inside the high-voltage distribution cabinet. If the amount of condensation water reaches a certain amount, the interior of the high-voltage distribution cabinet can be quickly inspected to prevent excessive condensation water from damaging the internal components 14 of the high-voltage distribution cabinet. It should be understood that if the heat generated by the internal components 14 of the high-voltage distribution cabinet during operation is higher than the external temperature, condensation water will be generated. Under this condition, the drying device 13 is first used to dry the relevant system to ensure internal dryness. At the same time, the hot air rises. Therefore, during the whole process, the heat at the top is higher than that on both sides. Therefore, when the condensation water on both sides is scraped excessively by the driving mechanism 2, the condensation water on the top will inevitably drip. Therefore, this method is used to detect excessive condensation water inside the high-voltage distribution cabinet and then infer the cause. Specifically, the starting motor 21 drives the drive shaft 22 to rotate, causing the first T-type gear 23 to rotate, and then the threaded rod 25 at the bottom of the second T-type gear 24 rotates, providing power for the subsequent scraping of condensation water on the inner wall of the main body 11.

[0020] like Figure 3-Figure 4 and Figure 7As shown, a reaction mechanism 3 is installed on the inner side wall of the main body 11 for scraping condensed water from the inner side wall and reacting according to the amount of condensed water. The reaction mechanism 3 includes a scraper 31 and a water bucket 32. The scraper 31 scrapes the condensed water from the inner wall of the main body 11 and drops it into the water bucket 32. The amount of condensed water inside is reflected according to the height of the water bucket 32. One side of the plane of the water bucket 32 ​​is slidably connected to two guide columns 34, and the outer walls of the two guide columns 34 are both installed with springs 35 located at the bottom of the water bucket 32 ​​and the main body 11. The outer walls of the two guide columns 34 are both installed with fixed blocks 33 whose other ends are fixed to the inner wall of the main body 11. As the condensed water gradually fills the inside of the water bucket 32, the corresponding spring 35 is pressed downward between the two guide columns 34 and the main body 11. When the driving mechanism 2 starts During movement, the reaction mechanism 3 will be driven to operate, and whether there is too much condensed water inside the high-voltage distribution cabinet will be detected, and relevant reactions will be made to the condensed water. Specifically, when the threaded rod 25 starts to rotate, it will drive the scraper 31 to rise and fall along the inside of the high-voltage distribution cabinet to scrape. When there is condensed water inside the distribution cabinet, the condensed water will flow along the high-voltage distribution cabinet into the water bucket 32. The water bucket 32 ​​will carry the gravity of the condensed water and gradually move downward between the two guide columns 34 and the main body 11. In addition, after the fault detection is completed and the condensed water inside the water bucket 32 ​​is processed, the spring 35 will reset the water bucket 32 ​​due to its elastic potential energy. It should be understood that the elastic potential energy of the spring 35 can only support the mass of the unloaded water bucket 32.

[0021] like Figure 5-Figure 6 and Figure 8As shown, a connecting mechanism 4 is installed on the other side of the outer wall of the main body 11, which is used for the linkage reaction mechanism 3 and the shielding mechanism 5 to ensure the fault self-detection function while protecting the inside of the main body 11. The connecting mechanism 4 includes a rack 41 connected to the water bucket 32. A slide groove 44 is provided on one side of the main body 11 for the rack 41 to slide. A wire wheel 42 is rotated on the other side of the outer wall of the main body 11, and a taut wire rope 45 is rotated on the outer wall of the wire wheel 42. A plurality of teeth 43 that mesh with the rack 41 are installed on the side of the outer wall of the wire wheel 42 away from the wire rope 45. The rack 41 is driven downward by the movement of the water bucket 32, and the wire rope 45 on the outer wall of the wire wheel 42 is driven to rotate. Two wire ropes 45 located on the top of the wire wheel 42 are installed on the other side of the outer wall of the main body 11. A first guide wheel 46, two second guide wheels 47 for guiding the steel wire rope 45 are installed inside the iron plate of the main body 11, and a third guide wheel 48 for supporting the steel wire rope 45 to form a closed loop is installed inside the main body 11. When there is condensed water inside the high-voltage distribution cabinet, the reaction mechanism 3 will drive the connecting mechanism 4 to move. Specifically, when the water bucket 32 ​​moves downward due to the gravity of the condensed water, it will drive the rack 41 to move along the slide groove 44. At the same time, the rack 41 will drive the wire wheel 42 with multiple teeth 43 to rotate, and then drive the closed-loop steel wire rope 45 on the outer wall of the wire wheel 42 to rotate along the two first guide wheels 46, the two second guide wheels 47 and the third guide wheel 48 to respond to the condensed water inside the high-voltage distribution cabinet.

[0022] like Figure 7-10As shown, a shielding mechanism 5 is installed on the top of the inner wall of the main body 11 to block the condensed water on the top of the main body 11 and reduce safety hazards. The shielding mechanism 5 includes two bar blocks 52, and a first support block 53 and a plurality of second support blocks 54 are slidably provided inside the two bar blocks 52 for unfolding the shield. A shielding cloth 58 is installed at the bottom of the two first support blocks 53 and the plurality of second support blocks 54 to block dripping condensed water. A support bar 57 is installed at the bottom of the two first support blocks 53 and the plurality of second support blocks 54, one of the support bars 57 has a connecting block 51 fixed to the outer wall of the wire rope 45 sliding on the top, and a strip groove 59 is opened on the top of one of the support bars 57 for providing the connecting block 51 with sliding. The rotation of the wire rope 45 drives one of the support bars 57 to the other side of the main body 11 One side slides, thereby causing the shielding cloth 58 to unfold. Sliding wheels 55 are installed on the front and rear surfaces of the multiple second support blocks 54, and tracks 56 are provided inside the two strip blocks 52 for the sliding of multiple sliding wheels 55. As the connecting mechanism 4 moves, the shielding mechanism 5 will be driven to shield the condensed water to prevent the condensed water on the top from dripping to the internal component 14, thereby reducing safety hazards. Specifically, when the wire rope 45 rotates, it will drive the connecting block 51 on one of the support bars 57 to slide to the other side of the main body 11, thereby driving the shielding cloth 58 to unfold. Under the pull of the shielding cloth 58, the support bars 57 connected to the multiple second support blocks 54 are gradually unfolded along the tracks 56 inside the two strip blocks 52, and are flattened above the internal component 14, thereby achieving shielding of the top.

[0023] The working principle of this embodiment is as follows. When in use, after the high-voltage distribution cabinet has been used for a period of time, the starting motor 21 drives the drive shaft 22 to rotate, causing the first T-shaped gear 23 to rotate, and then the threaded rod 25 at the bottom of the second T-shaped gear 24 to rotate. When the threaded rod 25 starts to rotate, it will drive the scraper 31 to rise and fall along the inside of the high-voltage distribution cabinet to scrape. When there is condensed water inside the distribution cabinet, the condensed water will flow along the high-voltage distribution cabinet into the water bucket 32. The water bucket 32 ​​will carry the gravity of the condensed water and gradually move downward between the two guide columns 34 and the main body 11. As the water bucket 32 ​​moves downward, it will drive the rack 41 to move along the slide 44. At the same time, the rack 41 will drive the wire wheel 42 provided with multiple teeth 43 It rotates, thereby driving the closed-loop wire rope 45 on the outer wall of the pulley 42 to rotate along the two first guide wheels 46, the two second guide wheels 47 and the third guide wheel 48. Then, when the wire rope 45 rotates, it will drive the connecting block 51 on one of the support bars 57 to slide to the other side of the main body 11, thereby driving the shielding cloth 58 to unfold. Under the pull of the shielding cloth 58, the support bars 57 connected by the multiple second support blocks 54 are gradually unfolded along the track 56 inside the two strip blocks 52, and flattened above the internal components 14, thereby achieving shielding of the top, thereby inferring an internal fault of the high-voltage distribution cabinet. After the fault detection is completed and the condensed water inside the water bucket 32 ​​is processed, the spring 35 resets the water bucket 32 ​​due to its elastic potential energy.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A fault self-checking high-voltage distribution cabinet, comprising a main body (11), characterized in that: The inner side wall of the main body (11) is provided with a reaction mechanism (3) for scraping condensed water from the inner side wall and reacting according to the amount of condensed water; The reaction mechanism (3) includes a scraper (31) and a water collecting bucket (32). The scraper (31) scrapes the condensed water on the inner wall of the main body (11) and drops it into the water collecting bucket (32). The amount of condensed water inside is reflected according to the height of the water collecting bucket (32) falling. A shielding mechanism (5) is installed on the top of the inner wall of the main body (11) to shield the condensed water on the top of the main body (11) and reduce safety hazards. The shielding mechanism (5) comprises two strip blocks (52), and a first support block (53) and a plurality of second support blocks (54) are slidably provided inside the two strip blocks (52) for deploying shielding, and shielding cloths (58) are installed at the bottom of the two first support blocks (53) and the plurality of second support blocks (54) for shielding dripping condensed water.

2. The fault self-detection type high-voltage distribution cabinet according to claim 1, characterized in that: A cabinet door (12) for detection is installed at the front end of the main body (11), a drying device (13) for ensuring internal drying is installed on one side of the outer wall of the main body (11), and an internal component (14) is installed inside the main body (11).

3. The fault self-detection type high-voltage distribution cabinet according to claim 1, characterized in that: A driving mechanism (2) is installed on the top of the main body (11) for scraping condensed water from the inner wall to provide power. The driving mechanism (2) includes a threaded rod (25). A second T-shaped gear (24) located outside the main body (11) is installed on the top of the threaded rod (25), and a first T-shaped gear (23) is meshed with the outer wall of the second T-shaped gear (24). By driving the first T-shaped gear (23) to rotate, the threaded rod (25) at the bottom of the second T-shaped gear (24) is driven to rotate. The middle end of the wiper (31) is threadedly connected to the threaded rod (25).

4. The fault self-detection type high-voltage distribution cabinet according to claim 3, characterized in that: A driving shaft (22) is mounted on one end of the first T-shaped gear (23), and a motor (21) located at the top of the main body (11) is mounted on the other end of the driving shaft (22). The driving shaft (22) is driven to rotate by the motor (21), thereby causing the first T-shaped gear (23) to rotate.

5. The fault self-detection type high-voltage power distribution cabinet according to claim 1, characterized in that: Two guide columns (34) are slidably connected to one side of the plane of the water hopper (32), and springs (35) located at the bottom of the water hopper (32) and the main body (11) are installed on the outer walls of the two guide columns (34).

6. The fault self-detection type high-voltage distribution cabinet according to claim 5, characterized in that: The outer walls of the two guide columns (34) are each provided with a fixing block (33) whose other end is fixed to the inner wall of the main body (11). As the interior of the water hopper (32) gradually receives condensed water, the corresponding spring (35) is pressed downward between the two guide columns (34) and the main body (11).

7. The fault self-detection type high-voltage power distribution cabinet according to claim 1, characterized in that: A connecting mechanism (4) is installed on the other side of the outer wall of the main body (11) for linking the reaction mechanism (3) and the shielding mechanism (5) to ensure the fault self-detection function while protecting the interior of the main body (11). The connecting mechanism (4) includes a rack (41) connected to the water bucket (32). A sliding groove (44) for providing sliding of the rack (41) is opened on one side of the surface of the main body (11). A wire wheel (42) is rotated on the other side of the outer wall of the main body (11), and a taut steel wire rope (45) is rotated on the outer wall of the wire wheel (42). A plurality of teeth (43) meshing with the rack (41) are installed on the side of the outer wall of the wire wheel (42) away from the steel wire rope (45). The rack (41) moves downward when the water bucket (32) moves, thereby driving the steel wire rope (45) on the outer wall of the wire wheel (42) to rotate.

8. The fault self-detection type high-voltage power distribution cabinet according to claim 7, characterized in that: Two first guide wheels (46) located on top of the wire wheel (42) are installed on the other side surface of the outer wall of the main body (11), two second guide wheels (47) for guiding the steel wire rope (45) are installed inside the iron plate of the main body (11), and a third guide wheel (48) for supporting the steel wire rope (45) to form a closed loop is installed inside the main body (11).

9. The fault self-detection type high-voltage power distribution cabinet according to claim 8, characterized in that: The bottoms of the two first support blocks (53) and the plurality of second support blocks (54) are each provided with a support bar (57), the top of one of the support bars (57) being provided with a connecting block (51) fixed to the outer wall of the steel wire rope (45) for sliding, and the top of one of the support bars (57) being provided with a strip groove (59) for providing the connecting block (51) with sliding, and the steel wire rope (45) is rotated to drive one of the support bars (57) to slide toward the other side of the main body (11), thereby causing the shielding cloth (58) to unfold.

10. The fault self-detection type high-voltage power distribution cabinet according to claim 9, characterized in that: Sliding wheels (55) are installed on the front and rear surfaces of the plurality of second support blocks (54), and tracks (56) for sliding the plurality of sliding wheels (55) are provided inside the two strip blocks (52).

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