A cable insulation layer repairing device for electric power engineering

Abstract

The application relates to the technical field of electric power engineering, and discloses a cable insulation layer repairing device for electric power engineering, which comprises a repairing support, a flue gas detection mechanism is arranged on the repairing support, the flue gas detection mechanism comprises a rack, a moving groove, a moving block, a mounting frame, a driving motor, a worm, a gear and a smoke sensor, the rack is fixedly installed at the top of the repairing support, the moving groove is arranged at the top of the rack, the moving block is in sliding connection with the inner wall of the moving groove, and the mounting frame is fixedly connected to the top of the moving block. The rack, the moving groove, the moving block, the driving motor, the worm and the gear can drive the mounting frame to move, thereby driving the smoke sensor to move, flue gas detection is carried out on the upper part of the cable, the sound and light alarm is arranged, sound and light alarm can be carried out when the cable is on fire, so that the nearby staff can be reminded, the loss caused by the cable fire is reduced, and the safety of the on-site staff is improved.

Description

Technical Field

[0001] This invention relates to the field of power engineering technology, specifically to a cable insulation repair device for power engineering. Background Technology

[0002] Electrical engineering is related to the production, transmission, and distribution of electrical energy, including projects that use electricity as a power source and energy source in multiple fields. During the construction of electrical engineering projects, if cables are damaged, it is necessary to repair the cable insulation layer using repair equipment.

[0003] According to Chinese Patent Publication No. CN117410892B, a cable insulation repair device for power engineering is disclosed, relating to the field of power engineering equipment technology. It includes: a frame with arc-shaped ends and a cleaning mechanism installed on the sides; a cleaning mechanism including a sliding groove on both sides of the frame; and a coating mechanism installed on the top of the frame, including a support with its bottom slidably mounted inside the sliding groove. By using a cleaning plate to clean the damaged area of ​​the cable, a sliding plate moves along the sliding groove, while a guide plate moves along a guide groove, allowing the cleaning plate to clean the damaged area from all angles. This ensures the cleanliness of the damaged area, improves the adhesion between the repair adhesive and the cable, and solves the problem in existing repair equipment where dust easily accumulates when the cable insulation is damaged and exposed to air, affecting the contact between the repair adhesive and the cable.

[0004] However, when repairing cable insulation, high-temperature tools such as hot air welding guns or soldering irons are usually used. Cables are prone to catching fire in high-temperature environments, posing certain safety hazards. Therefore, a cable insulation repair device for power engineering is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a cable insulation repair device for power engineering, which addresses the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a cable insulation layer repair device for power engineering, including a repair bracket, on which a smoke detection mechanism is provided. The smoke detection mechanism includes a rack, a moving groove, a moving block, a mounting frame, a drive motor, a worm gear, a gear, and a smoke sensor. The rack is fixedly installed on the top of the repair bracket, the moving groove is opened on the top of the rack, the moving block is slidably connected to the inner wall of the moving groove, the mounting frame is fixedly connected to the top of the moving block, the drive motor is fixedly installed on the front of the mounting frame, one end of the worm gear is fixedly connected to the output end of the drive motor, and the other end of the worm gear passes through the front of the mounting frame through a bearing and is rotatably connected to the inner wall of the mounting frame, the gear is fixedly sleeved on the outer wall of the worm gear, and the gear meshes with the bottom of the rack, and the smoke sensor is fixedly installed on the top of the inner wall of the mounting frame.

[0007] Preferably, a mounting bracket is fixedly connected to the top of the mounting frame, a carbon dioxide fire extinguisher is mounted on the mounting bracket, an air pipe is connected to the carbon dioxide fire extinguisher, a first control valve is mounted on the air pipe, and the other end of the air pipe is fixedly inserted through the front of the mounting frame. An audible and visual alarm is fixedly mounted on the top of the repair bracket, and the audible and visual alarm is electrically connected to the smoke sensor.

[0008] Preferably, the flue gas detection mechanism further includes a base plate, a limiting rod, a worm gear module, a limiting groove, and a cleaning brush. The base plate is fixedly connected to the bottom of the mounting frame, the limiting rod is fixedly connected to the base plate, the worm gear module is meshed with a worm, the limiting groove is formed on the worm gear module, and the limiting rod is slidably connected to the inner wall of the limiting groove. The cleaning brush is disposed on the inner wall of the worm gear module.

[0009] Preferably, the worm gear module includes an upper worm gear, a lower worm gear, a retaining block, and a pin. The upper worm gear meshes with the worm, and a retaining groove is provided at the bottom of the upper worm gear. The top of the lower worm gear contacts the bottom of the upper worm gear. The retaining block is fixedly connected to the top of the lower worm gear and is slidably connected to the inner wall of the retaining groove. The pin passes through the retaining groove and the retaining block in sequence and is slidably connected to the retaining block. By setting the retaining block, the retaining groove, and the pin, it is convenient to install and disassemble the upper and lower worm gears.

[0010] Preferably, there are two racks and two gears, with the two racks symmetrically arranged on the top of the repair bracket. The purpose of using two racks and two gears is to make the mounting frame more stable when it moves.

[0011] Preferably, the repair bracket is provided with a protective mechanism, which includes a liquid storage tank, a drain pipe, a second control valve, an arc-shaped pipe, and a drain outlet. The liquid storage tank is fixedly connected to the top of the mounting frame. One end of the drain pipe is connected to the bottom of the liquid storage tank, and the other end of the drain pipe passes through the top of the mounting frame. The second control valve is provided on the drain pipe. The top of the arc-shaped pipe is connected to the bottom of the drain pipe, and the drain outlet is provided at the bottom of the arc-shaped pipe.

[0012] Preferably, a side plate is fixedly connected to the repair bracket, and a sliding groove is provided on the side plate. A slider is slidably connected to the inner wall of the sliding groove, and the slider is fixedly connected to the arc-shaped tube. A retaining seat is slidably connected to the inner wall of the limiting groove, and the retaining seat is fixedly connected to the arc-shaped tube through a connecting shaft. By setting the sliding groove, slider, connecting shaft, and retaining seat, the worm gear module can drive the arc-shaped tube to move at a uniform speed when moving, so that the water-based fireproof coating in the storage tank can be sprayed onto the cable more evenly.

[0013] Preferably, the repair bracket is provided with a power failure detection mechanism, which includes a frame, grippers, a pull rod, a pull block, a hinge block, a spring, and a hinge rod. The frame is fixedly connected to the repair bracket. The grippers are rotatably connected to the inner wall of the frame via a rotating shaft, and the inner wall of the grippers is provided with an elastic pad. The pull rod moves through the top of the repair bracket and the top of the frame. The pull block is fixedly connected to the top of the pull rod. The hinge block is fixedly connected to the bottom of the pull rod. The spring is sleeved on the pull rod. One end of the spring is fixedly connected to the top of the inner wall of the frame, and the other end of the spring is fixedly connected to the top of the hinge block. One end of the hinge rod is hinged to the hinge block, and the other end of the hinge rod is hinged to the grippers.

[0014] Preferably, there are two frames, which are respectively arranged on the left and right sides of the repair bracket, and each frame has two grippers.

[0015] Preferably, a clamp-on ammeter is fixedly installed on the frame on the left side. The clamp head of the clamp-on ammeter is fixedly connected to the jaws via a connecting rod. An indicator light is fixedly connected to the top of the repair bracket, and the indicator light is electrically connected to the clamp-on ammeter.

[0016] The present invention, by adopting the above technical solution, can bring the following beneficial effects: 1. This cable insulation repair equipment for power engineering uses a rack, a moving groove, a moving block, a drive motor worm gear, and a gear to move the mounting frame, thereby moving the smoke sensor to detect smoke above the cable. An audible and visual alarm is also included to alert nearby workers in case of cable fire, reducing losses caused by cable fires and improving on-site safety.

[0017] 2. This cable insulation repair equipment for power engineering can extinguish cable fires with carbon dioxide by setting up a carbon dioxide fire extinguisher, gas pipe and first control valve, thereby reducing the spread of cable fire and thus reducing the losses caused by cable fire and preventing the fire from escalating.

[0018] 3. This cable insulation repair equipment for power engineering, by setting up a base plate, limit rod, worm gear module, limit groove, and cleaning brush, can clean the surface of the cable when the installation frame moves, removing dust, oil, and other contaminants from the cable surface. This prevents contaminants on the cable surface from fueling the fire when the cable catches fire, thereby further reducing the losses caused by the cable fire. It also facilitates visual inspection, timely detection of insulation damage or other potential problems, and allows for maintenance or repair measures to be taken.

[0019] 4. This cable insulation repair equipment for power engineering includes a storage tank for storing water-based fire-retardant coatings. A drain pipe, a second control valve arc pipe, and a drain outlet facilitate the spraying of the water-based fire-retardant coating onto the cable surface. A sliding groove, slider, connecting shaft, and clamping seat enable the arc pipe to move evenly when the worm gear module moves, thus uniformly spraying the water-based fire-retardant coating onto the cable surface to form a fire-retardant layer. A cleaning brush is used to clean the cable surface, facilitating subsequent spraying of the water-based fire-retardant coating and preventing contaminants on the cable surface from affecting the formation of the fire-retardant layer. This results in a more stable fire-retardant layer formation, reducing the likelihood of cable ignition and improving the safety of cable insulation repair. Furthermore, it can isolate the fire in the event of a cable fire, preventing its spread and reducing losses caused by cable fires.

[0020] 5. This cable insulation repair equipment for power engineering uses pull rods, pull blocks, hinge blocks, springs, and hinge rods to drive clamps to hold and fix both ends of the cable, thereby improving the stability of cable insulation repair and preventing the cable from catching fire due to the high temperature generated when the high-temperature tool comes into contact with other parts of the cable during insulation repair caused by cable shaking. The clamp-on ammeter can detect the current in the cable, and the indicator light allows workers to easily observe whether there is current in the cable, avoiding safety hazards caused by the cable not being de-energized during insulation repair and improving the safety of workers. Attached Figure Description

[0021] Figure 1 This is a front view of a cable insulation repair device for power engineering according to the present invention; Figure 2 This is a schematic diagram of the back of a cable insulation repair device for power engineering according to the present invention; Figure 3This is a side sectional view of a cable insulation repair device for power engineering according to the present invention; Figure 4 This is a first front sectional view of a cable insulation repair device for power engineering according to the present invention; Figure 5 This is a second front sectional view of a cable insulation repair device for power engineering according to the present invention; Figure 6 This is a schematic diagram of the protective mechanism of a cable insulation repair device for power engineering according to the present invention; Figure 7 This is an enlarged view of point A of a cable insulation layer repair device for power engineering according to the present invention; Figure 8 This is an enlarged view of section B of a cable insulation repair device for power engineering according to the present invention; Figure 9 This is an enlarged view of section C of a cable insulation repair device for power engineering according to the present invention; Figure 10 This is a schematic diagram of a worm gear module for a cable insulation repair device used in power engineering according to the present invention.

[0022] In the diagram: 1. Repair bracket; 2. Smoke detection mechanism; 201. Rack; 202. Moving groove; 203. Moving block; 204. Mounting frame; 205. Drive motor; 206. Worm gear; 207. Gear; 208. Smoke sensor; 209. Mounting bracket; 210. Carbon dioxide fire extinguisher; 211. Gas pipe; 212. First control valve; 213. Audible and visual alarm; 214. Base plate; 215. Limiting rod; 216. Worm gear module; 2161. Upper worm gear; 2162. Lower worm gear; 2163. Locking block; 2164. Pin; 217. Limiting groove; 218. Cleaning brush; 3. Protective mechanism; 301. Liquid storage tank; 302. Drain pipe; 303. Second control valve; 304. Arc-shaped pipe; 305. Drain outlet; 306. Side plate; 307. Slide groove; 308. Slider; 309. Connecting shaft; 310. Card seat; 4. Power failure detection mechanism; 401. Frame; 402. Gripper; 403. Pull rod; 404. Pull block; 405. Hinge block; 406. Spring; 407. Hinge rod; 408. Clamp ammeter; 409. Connecting rod; 410. Indicator light. Detailed Implementation

[0023] 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.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a number" means two or more, unless otherwise explicitly specified.

[0027] Please see Figure 1-10 One embodiment of the present invention is: a cable insulation repair device for power engineering, comprising a repair bracket 1, on which a smoke detection mechanism 2 is provided. The smoke detection mechanism 2 includes a rack 201, a moving groove 202, a moving block 203, a mounting frame 204, a drive motor 205, a worm gear 206, a gear 207, and a smoke sensor 208. The rack 201 is fixedly installed on the top of the repair bracket 1, the moving groove 202 is formed on the top of the rack 201, and the moving block 203 slides against the inner wall of the moving groove 202. The mounting frame 204 is fixedly connected to the top of the moving block 203. The drive motor 205 is fixedly installed on the front of the mounting frame 204. One end of the worm gear 206 is fixedly connected to the output end of the drive motor 205, and the other end of the worm gear 206 passes through the front of the mounting frame 204 through a bearing and is rotatably connected to the inner wall of the mounting frame 204. The gear 207 is fixedly sleeved on the outer wall of the worm gear 206, and the gear 207 meshes with the bottom of the rack 201. The smoke sensor 208 is fixedly installed on the top of the inner wall of the mounting frame 204.

[0028] Preferably, a mounting bracket 209 is fixedly connected to the top of the mounting frame 204, a carbon dioxide fire extinguisher 210 is installed on the mounting bracket 209, an air pipe 211 is connected to the carbon dioxide fire extinguisher 210, a first control valve 212 is installed on the air pipe 211, and the other end of the air pipe 211 is fixedly inserted through the front of the mounting frame 204. An audible and visual alarm 213 is fixedly installed on the top of the repair bracket 1, and the audible and visual alarm 213 is electrically connected to the smoke sensor 208.

[0029] Preferably, the flue gas detection mechanism 2 further includes a base plate 214, a limiting rod 215, a worm gear module 216, a limiting groove 217, and a cleaning brush 218. The base plate 214 is fixedly connected to the bottom of the mounting frame 204, the limiting rod 215 is fixedly connected to the base plate 214, the worm gear module 216 is meshed with the worm 206, the limiting groove 217 is opened on the worm gear module 216, and the limiting rod 215 is slidably connected to the inner wall of the limiting groove 217. The cleaning brush 218 is disposed on the inner wall of the worm gear module 216.

[0030] Preferably, the worm gear module 216 includes an upper worm gear 2161, a lower worm gear 2162, a locking block 2163, and a pin 2164. The upper worm gear 2161 meshes with the worm 206, and a locking groove is provided at the bottom of the upper worm gear 2161. The top of the lower worm gear 2162 contacts the bottom of the upper worm gear 2161. The locking block 2163 is fixedly connected to the top of the lower worm gear 2162, and the locking block 2163 is slidably connected to the inner wall of the locking groove. The pin 2164 passes through the locking groove and the locking block 2163 in sequence and is slidably connected to the locking block 2163. By setting the locking block 2163, the locking groove, and the pin 2164, it is convenient to install and disassemble the upper worm gear 2161 and the lower worm gear 2162.

[0031] Preferably, there are two racks 201 and two gears 207. The two racks 201 are symmetrically arranged on the top of the repair bracket 1. The purpose of setting two racks 201 and two gears 207 is to make the mounting frame 204 more stable when it moves.

[0032] Preferably, the repair bracket 1 is provided with a protective mechanism 3, which includes a liquid storage tank 301, a drain pipe 302, a second control valve 303, an arc-shaped pipe 304, and a drain outlet 305. The liquid storage tank 301 is fixedly connected to the top of the mounting frame 204. One end of the drain pipe 302 is connected to the bottom of the liquid storage tank 301, and the other end of the drain pipe 302 passes through the top of the mounting frame 204. The second control valve 303 is provided on the drain pipe 302. The top of the arc-shaped pipe 304 is connected to the bottom of the drain pipe 302, and the drain outlet 305 is provided at the bottom of the arc-shaped pipe 304.

[0033] Preferably, a side plate 306 is fixedly connected to the repair bracket 1. A sliding groove 307 is provided on the side plate 306. A slider 308 is slidably connected to the inner wall of the sliding groove 307, and the slider 308 is fixedly connected to the arc tube 304. A retainer 310 is slidably connected to the inner wall of the limiting groove 217. The retainer 310 is fixedly connected to the arc tube 304 through the connecting shaft 309. By setting the sliding groove 307, slider 308, connecting shaft 309 and retainer 310, the purpose is to make the worm gear module 216 drive the arc tube 304 to move at a uniform speed when it moves, so that the water-based fireproof coating in the liquid storage tank 301 is sprayed onto the cable more evenly.

[0034] Working principle: First, the cleaning brush 218 on the upper worm gear 2161 contacts the top of the cable. Then, the locking block 2163 on the lower worm gear 2162 is inserted into the slot. Finally, the pin 2164 is inserted into the slot and the locking block 2163 to assemble the worm gear module 216. By starting the drive motor 205, the drive motor 205 drives the worm 206 to rotate. The rotation of the worm 206 drives the gear 207 to rotate. The rotation of the gear 207, under the action of the rack 201, drives the mounting frame 20. 4. The movement of the worm gear 206 causes the smoke sensor 208 to move, detecting the top of the cable. When the smoke sensor 208 detects smoke, it transmits a signal to the audible and visual alarm 213, which then triggers an audible and visual alarm to alert personnel. Simultaneously, the first control valve 212 is activated, spraying carbon dioxide gas from the carbon dioxide fire extinguisher 210 through the gas pipe 211 onto the cable to extinguish the fire. At the same time, the rotation of the worm gear 206 drives the worm... The rotation of the wheel module 216 drives the cleaning brush 218 to rotate, cleaning dust, oil, and other contaminants from the cable surface. This facilitates visual inspection, allowing for timely detection of insulation damage or other potential problems, enabling maintenance or repair measures to be taken. It also reduces the risk of contaminants on the cable surface fueling a fire in the event of one. When the mounting frame 204 moves the smoke sensor 208, it moves the liquid storage tank 301. By activating the second control valve 303, the water-based fire-retardant coating in the liquid storage tank 301 is sprayed onto the cable surface through the drain pipe 302 and the arc-shaped pipe 304 from the drain outlet 305, protecting the cable after cleaning with the cleaning brush 218. The worm gear module 216, with its sliding groove 307, slider 308, connecting shaft 309, and mounting bracket 310, moves the arc-shaped pipe 304 at a uniform speed, ensuring the water-based fire-retardant coating is evenly sprayed onto the cable surface. This reduces the risk of fire caused by high temperatures generated during cable insulation repair using high-temperature tools.

[0035] Please see Figure 1-10Based on the above embodiments, in another preferred embodiment of the present invention, the repair bracket 1 is provided with a power failure detection mechanism 4. The power failure detection mechanism 4 includes a frame 401, a gripper 402, a pull rod 403, a pull block 404, a hinge block 405, a spring 406, and a hinge rod 407. The frame 401 is fixedly connected to the repair bracket 1. The gripper 402 is rotatably connected to the inner wall of the frame 401 via a rotating shaft, and the inner wall of the gripper 402 is provided with an elastic pad. The pull rod 403 is movable. A pull block 404 is fixedly connected to the top of the pull rod 403 through the top of the repair bracket 1 and the top of the frame 401. A hinge block 405 is fixedly connected to the bottom of the pull rod 403. A spring 406 is sleeved on the pull rod 403. One end of the spring 406 is fixedly connected to the top of the inner wall of the frame 401, and the other end of the spring 406 is fixedly connected to the top of the hinge block 405. One end of the hinge rod 407 is hinged to the hinge block 405, and the other end of the hinge rod 407 is hinged to the gripper 402.

[0036] Preferably, there are two frames 401, which are respectively set on the left and right sides of the repair bracket 1, and each frame 401 has two grippers 402.

[0037] Preferably, a clamp ammeter 408 is fixedly installed on the left frame 401. The clamp head of the clamp ammeter 408 is fixedly connected to the jaws 402 via a connecting rod 409. An indicator light 410 is fixedly connected to the top of the repair bracket 1, and the indicator light 410 is electrically connected to the clamp ammeter 408.

[0038] Working principle: When cable insulation needs repair, place the repair bracket 1 above the cable. Pulling the pull block 404 upwards causes the pull rod 403 to move upwards, which in turn moves the hinge block 405 upwards. The upward movement of the hinge block 405 compresses the spring 406 and simultaneously causes the jaws 402 to swing via the hinge rod 407. Under the action of the connecting rod 409, the jaws of the clamp meter 408 swing, thus opening the jaws 402 and clamping head. The cable is placed between the jaws 402 and the clamping head of the clamp meter 408. Then, releasing the pull block 404 causes the hinge block 405 to move upwards. The cable descends, causing the hinge rod 407 to close the clamp 402, thus clamping and fixing the cable through the elastic pad. The clamp ammeter 408 detects the power failure of the cable. When there is no current in the cable, the clamp ammeter 408 cannot detect the current, and the indicator light 410 is off. When there is current in the cable, the clamp ammeter 408 detects the current and transmits the signal to the indicator light 410, which lights up. This reminds the staff that there is current in the cable and that the power must be cut off before repairing the cable insulation layer, thus avoiding electric shock to the staff during the cable repair process and improving the safety of cable insulation layer repair.

[0039] This invention provides a cable insulation repair device for power engineering. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A cable insulation repair device for power engineering, comprising a repair bracket (1), characterized in that: The repair bracket (1) is provided with a smoke detection mechanism (2), which includes a rack (201), a moving groove (202), a moving block (203), a mounting frame (204), a drive motor (205), a worm gear (206), a gear (207), and a smoke sensor (208). The rack (201) is fixedly installed on the top of the repair bracket (1), the moving groove (202) is opened on the top of the rack (201), the moving block (203) is slidably connected to the inner wall of the moving groove (202), and the mounting frame (204) is fixedly connected to the inner wall of the moving groove (202). The drive motor (205) is fixedly installed on the front of the mounting frame (204) and attached to the top of the moving block (203). One end of the worm (206) is fixedly connected to the output end of the drive motor (205), and the other end of the worm (206) passes through the front of the mounting frame (204) through a bearing and is rotatably connected to the inner wall of the mounting frame (204). The gear (207) is fixedly sleeved on the outer wall of the worm (206), and the gear (207) meshes with the bottom of the rack (201). The smoke sensor (208) is fixedly installed on the top of the inner wall of the mounting frame (204).

2. The cable insulation repair equipment for power engineering according to claim 1, characterized in that: The top of the mounting frame (204) is fixedly connected to a mounting bracket (209), a carbon dioxide fire extinguisher (210) is installed on the mounting bracket (209), a gas pipe (211) is connected to the carbon dioxide fire extinguisher (210), a first control valve (212) is installed on the gas pipe (211), and the other end of the gas pipe (211) is fixedly connected through the front of the mounting frame (204). The top of the repair bracket (1) is fixedly installed with an audible and visual alarm (213), and the audible and visual alarm (213) is electrically connected to the smoke sensor (208).

3. The cable insulation repair equipment for power engineering according to claim 2, characterized in that: The flue gas detection mechanism (2) also includes a base plate (214), a limiting rod (215), a worm gear module (216), a limiting groove (217), and a cleaning brush (218). The base plate (214) is fixedly connected to the bottom of the mounting frame (204). The limiting rod (215) is fixedly connected to the base plate (214). The worm gear module (216) is meshed with the worm (206). The limiting groove (217) is opened on the worm gear module (216), and the limiting rod (215) is slidably connected to the inner wall of the limiting groove (217). The cleaning brush (218) is set on the inner wall of the worm gear module (216).

4. The cable insulation repair equipment for power engineering according to claim 3, characterized in that: The worm gear module (216) includes an upper worm gear (2161), a lower worm gear (2162), a locking block (2163), and a pin (2164). The upper worm gear (2161) meshes with the worm (206), and a locking groove is provided at the bottom of the upper worm gear (2161). The top of the lower worm gear (2162) contacts the bottom of the upper worm gear (2161). The locking block (2163) is fixedly connected to the top of the lower worm gear (2162), and the locking block (2163) is slidably connected to the inner wall of the locking groove. The pin (2164) passes through the locking groove and the locking block (2163) in sequence and is slidably connected to the locking block (2163).

5. The cable insulation repair equipment for power engineering according to claim 4, characterized in that: The number of racks (201) and gears (207) is two, and the two racks (201) are symmetrically arranged on the top of the repair bracket (1).

6. The cable insulation repair equipment for power engineering according to claim 5, characterized in that: The repair bracket (1) is provided with a protective mechanism (3), which includes a liquid storage tank (301), a drain pipe (302), a second control valve (303), an arc-shaped pipe (304), and a drain outlet (305). The liquid storage tank (301) is fixedly connected to the top of the mounting frame (204). One end of the drain pipe (302) is connected to the bottom of the liquid storage tank (301), and the other end of the drain pipe (302) passes through the top of the mounting frame (204). The second control valve (303) is located on the drain pipe (302). The top of the arc-shaped pipe (304) is connected to the bottom of the drain pipe (302), and the drain outlet (305) is located at the bottom of the arc-shaped pipe (304).

7. A cable insulation repair device for power engineering according to claim 6, characterized in that: A side plate (306) is fixedly connected to the repair bracket (1). A sliding groove (307) is provided on the side plate (306). A slider (308) is slidably connected to the inner wall of the sliding groove (307), and the slider (308) is fixedly connected to the arc tube (304). A card seat (310) is slidably connected to the inner wall of the limiting groove (217). The card seat (310) is fixedly connected to the arc tube (304) through a connecting shaft (309).

8. A cable insulation repair device for power engineering according to claim 7, characterized in that: The repair bracket (1) is equipped with a power failure detection mechanism (4), which includes a frame (401), a gripper (402), a pull rod (403), a pull block (404), a hinge block (405), a spring (406), and a hinge rod (407). The frame (401) is fixedly connected to the repair bracket (1). The gripper (402) is rotatably connected to the inner wall of the frame (401) via a rotating shaft, and the inner wall of the gripper (402) is provided with an elastic pad. The pull rod (403) movably passes through the top of the repair bracket (1) and... At the top of the frame (401), the pull block (404) is fixedly connected to the top of the pull rod (403), the hinge block (405) is fixedly connected to the bottom of the pull rod (403), the spring (406) is sleeved on the pull rod (403), one end of the spring (406) is fixedly connected to the top of the inner wall of the frame (401), and the other end of the spring (406) is fixedly connected to the top of the hinge block (405). One end of the hinge rod (407) is hinged to the hinge block (405), and the other end of the hinge rod (407) is hinged to the gripper (402).

9. A cable insulation repair device for power engineering according to claim 8, characterized in that: There are two frames (401), and the two frames (401) are respectively set on the left and right sides of the repair bracket (1). Each frame (401) has two grippers (402).

10. A cable insulation repair device for power engineering according to claim 9, characterized in that: A clamp ammeter (408) is fixedly installed on the frame (401) on the left side. The clamp head of the clamp ammeter (408) is fixedly connected to the jaws (402) through the connecting rod (409). An indicator light (410) is fixedly connected to the top of the repair bracket (1), and the indicator light (410) is electrically connected to the clamp ammeter (408).

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