Electrified distribution line live insulation spraying tool

CN224926301UActive Publication Date: 2026-11-03STATE GRID QINGHAI ELECTRIC POWER CO HAINAN POWER SUPPLY CO
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Patent Information

Application Number
CN202522487400.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-11-03
Estimated Expiration
2035-11-24

AI Technical Summary

Technical Problem

Traditional cable insulation layer construction methods suffer from uneven coating quality, incomplete coverage, and high safety risks in high-altitude and long-span conductor construction, especially in strong wind environments where precise coating is difficult to achieve.

Method used

Employing a pneumatic plunger pump system, combined with a universal tube and atomizing nozzle design, and controlled by a remote control, the spraying tool offers convenient operation and precise, uniform spraying. An extended tube extends the working range, and an air compressor and insulating hose ensure stable air supply, meeting the needs of high-altitude insulation spraying.

Benefits of technology

It achieves efficient and uniform insulation material spraying, improves spraying accuracy and safety, overcomes the problems of small operating range and difficulty in directional adjustment, and adapts to the characteristics of continuous linear movement of cables.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses power distribution line electrified insulation spraying tool, including pneumatic plunger pump, pneumatic plunger pump is connected with gas source two joint spare through first gas supply pipe, and gas source two joint spare is connected with air compressor through second gas supply pipe, and pneumatic plunger pump feed opening is connected with feed module through first feed pipe, and pneumatic plunger pump discharge port is connected with material conveying unit through feed pipe, and material connecting unit is connected with operation execution unit, the utility model connects operation execution unit with material connecting unit, and the operator can select the splicing number of lengthening pipe according to different operation distance to realize the expansion of atomizing spray head operation distance, and the atomizing spray head evenly distributed on annular pipe can realize even, efficient insulation material spraying, and gas source two joint spare guarantees the stability of air compressor output pressure, and the stable gas source pressure makes the stable output coating of pneumatic plunger pump, and then ensures the consistency of coating thickness and quality, satisfies the spraying requirement of power distribution line bare conductor.
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Description

Technical Field

[0001] This utility model belongs to the field of power operation equipment technology, and relates to a live insulation spraying tool for power distribution lines. Background Technology

[0002] Cable insulation is crucial for ensuring electrical safety and reliable power transmission. However, while traditional extrusion coating processes are efficient, they lack flexibility and cannot be applied to on-site repairs or insulation upgrades of in-service cables. Traditional manual spraying methods suffer from significant drawbacks, including low efficiency, reliance on worker skills for coating quality, poor uniformity, environmental pollution, and high safety risks. Existing general-purpose spraying equipment is also ill-suited to the continuous linear movement characteristics of cables.

[0003] In live-line insulation spraying operations for power distribution networks, the limitations of working with high-altitude, long-span conductors are becoming a bottleneck restricting spraying quality. When the work position exceeds the effective extension range of conventional insulating rods or there is lateral deviation, existing equipment suffers from reduced nozzle positioning accuracy and unstable paint atomization flow field, directly leading to uneven coating thickness and insufficient coverage, severely weakening the dielectric strength and mechanical protective performance of the insulation layer. This technical shortcoming is particularly prominent in the high-altitude areas of Qinghai—strong winds exacerbate conductor swaying, causing spraying inaccuracies and frequent line-to-line contact leading to leakage and short circuits. Therefore, there is an urgent need for a specialized tool capable of providing rapid and effective insulation protection for bare conductors of power distribution lines while they are energized. Utility Model Content

[0004] The purpose of this utility model is to provide a live insulation spraying tool for power distribution lines, which is easy to assemble and disassemble, simple to operate, labor-saving, and provides precise and uniform spraying.

[0005] The technical solution adopted in this utility model is a live-line insulation spraying tool, including a pneumatic plunger pump. The pneumatic plunger pump is connected to an air source dual unit through a first air supply pipe. The air source dual unit is connected to an air compressor through a second air supply pipe. The pneumatic plunger pump feed port is connected to a feeding module through a first feeding pipe. The pneumatic plunger pump discharge port is connected to a material conveying unit through a feeding pipe. The material connection unit is connected to an operation execution unit.

[0006] The features of this utility model also include: The first battery is installed in the insulating housing of the air compressor.

[0007] The feeding module includes a three-way liquid valve. One end of the three-way liquid valve is threadedly connected to the first feeding pipe, and the other two ends of the three-way liquid valve are respectively threadedly connected to the cleaning box and the feeding box through the second feeding pipe and the third feeding pipe.

[0008] The material conveying unit includes a fixed shell, one end of which is connected to an insulating tube via a second heat fusion joint, and the other end of which is connected to a first heat fusion joint. The first heat fusion joint is connected to the operation execution unit. The feeding tube passes through the fixed shell and is connected to the operation execution unit via a quick connector. The quick connector is connected to the insulating tube via a fixed rope, and a handle is fixed on the insulating tube.

[0009] The operation execution unit includes a start-stop module, which is threadedly connected to the first hot melt joint via a fixed pipe. The start-stop module is also connected to the feeding pipe via a quick connector. One end of the start-stop module is connected to a universal tube, and the other end of the universal tube is connected to a spraying module.

[0010] The start / stop module includes a solenoid valve, which is threadedly connected to the first hot-melt joint via a fixed pipe, connected to the feed pipe via a quick connector, and connected to a universal joint. A controller and a second battery are installed on the solenoid valve.

[0011] The spraying module includes an internal threaded connector, one end of which is connected to a universal joint, and the other end of which is connected to an annular tube. Several atomizing nozzles are installed inside the annular tube.

[0012] The controller has a communication connection with a remote control.

[0013] One end of the insulating tube is connected to several extension tubes in sequence via a second heat fusion joint. Both ends of the extension tubes are connected to second heat fusion joints, and the last second heat fusion joint is connected to the fixed shell.

[0014] The lengths of both the insulating tube and the extension tube are 0.6m-1.8m.

[0015] The beneficial effects of this utility model are: This invention connects the work execution unit with the material connection unit, allowing operators to rationally select the number of extension tubes to be spliced ​​according to different working distances, thereby expanding the working distance of the atomizing nozzles. The atomizing nozzles evenly distributed on the annular tube can achieve uniform and efficient spraying of insulating materials. The air source dual unit ensures the stability of the air compressor's output pressure, and the stable air source pressure allows the pneumatic plunger pump to stably output coatings, thus ensuring the consistency of coating thickness and quality, meeting the spraying requirements of bare conductors in power distribution lines. The quick-assembly and disassembly structure of the material conveying unit ensures convenient operation of the tool, saves transportation space, and overcomes the problem of small operating range. The universal tube solves the problem of difficulty in adjusting the spraying direction and improves the accuracy of spraying. Wireless control via remote control improves operational safety. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram of the material conveying unit connection in this utility model; Figure 3 This is a structural diagram of the work execution unit in this utility model; Figure 4 This is a cross-sectional view of the work execution unit in this utility model.

[0017] In the diagram, 1. First battery, 2. Air compressor, 3. First air supply pipe, 4. Air source dual unit, 5. First feed pipe, 6. Pneumatic plunger pump, 7. Three-way liquid valve, 8. Cleaning box, 9. Feed box, 10. Fixed shell, 11. Quick connector, 12. First heat fusion connector, 13. Fixing rope, 14. Insulating tube, 15. Handle, 16. Solenoid valve, 17. Universal tube, 18. Internal threaded connector, 19. Atomizing nozzle, 20. Ring tube, 21. Controller, 22. Second battery, 23. Remote control, 24. Fixing tube, 25. Second air supply pipe, 26. Second feed pipe, 27. Third feed pipe, 28. Feeding pipe, 29. Second heat fusion connector, 30. Extension tube. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] For live-line insulation spraying tools, see [link / reference]. Figure 1 The system includes a pneumatic plunger pump 6, which is connected to an air source dual unit 4 via a first air supply pipe 3. The air source dual unit 4 is connected to an air compressor 2 via a second air supply pipe 25. The feed port of the pneumatic plunger pump 6 is connected to a feeding module via the first feeding pipe 5, and the discharge port of the pneumatic plunger pump 6 is connected to a material conveying unit via a feeding pipe 28. The material conveying unit is connected to an operation execution unit. A first battery 1 is installed in the insulating housing of the air compressor 2 and is electrically connected to the air compressor 2 to supply power to it. The air source dual unit 4 can stabilize the air source, keeping it in a constant state and reducing the impact of sudden changes in air source pressure on valves or... Damage to the actuator is addressed by simultaneously cleaning the air source and filtering out moisture from the compressed air to prevent moisture from entering the pneumatic plunger pump 6. One end of the air source dual unit 4, which has a pressure regulating function, is connected to the second air supply pipe 25 via an air pipe connector to receive compressed air, while the other end, which has a filtering function, is connected to the first air supply pipe 3 via an air pipe connector to output compressed air. The air compressor 2 provides power to the pneumatic plunger pump 6, driving it to pressurize the coating to the expected pressure. The pneumatic plunger pump 6 is equipped with a pressure reducing valve, which regulates the compressed air pressure to control the coating pressure. The coating pressure can reach tens of times the compressed air input pressure.

[0020] The feeding module includes a three-way liquid valve 7. One end of the three-way liquid valve 7 is threadedly connected to the first feeding pipe 5. The other two ends of the three-way liquid valve 7 are respectively threadedly connected to the cleaning tank 8 and the feeding tank 9 through the second feeding pipe 26 and the third feeding pipe 27. Both the feeding tank 9 and the cleaning tank 8 are provided with discharge ports. The second feeding pipe 26 and the third feeding pipe 27 extend into the corresponding discharge ports. The feeding tank 9 contains insulating coating. The insulating coating is selected based on the operation requirements and can be a reasonable spraying material or customized. The cleaning tank 8 contains insulating coating cleaning liquid.

[0021] See Figure 2 The material conveying unit includes a fixed shell 10. The fixed shell 10 is connected to one end of an insulating tube 14 via a second heat fusion joint 29. The other end of the insulating tube 14 is connected to a first heat fusion joint 12. The first heat fusion joint 12 is connected to the operation execution unit. The feeding tube 28 passes through the fixed shell 10 and is connected to the operation execution unit via a quick connector 11. The quick connector 11 is connected to the insulating tube 14 via a fixing rope 13. One end of the fixing rope 13 is tied to the quick connector 11 that needs to be fixed, and the other end is pre-embedded between the insulating tube 14 and the first heat fusion joint 12 through a pre-set hole in the wall of the insulating tube 14. The fixing rope 13 has high heat resistance and can be protected from damage by high temperature when fixing the first heat fusion joint 12. A handle 15 is fixed on the insulating tube 14. The handle 15 is made of rubber. The insulating tube 14 meets the requirements of the 10kV power distribution live-line operation standard.

[0022] See Figure 3 The operation execution unit includes a start-stop module, which is threadedly connected to the first hot melt joint 12 via a fixed pipe 24. The start-stop module is also connected to the feeding pipe 28 via a quick connector 11. One end of the start-stop module is connected to a universal tube 17, and the other end of the universal tube 17 is connected to a spraying module. The two ends of the universal tube 17 are rigid structures, while the middle is a flexible structure. One end of the universal tube 17 can rotate 360° around the other end. The inside of the pipe is hollow and it is threadedly connected to other components. The universal tube 17 serves both to change the direction of rotation and to transport the coating.

[0023] See Figure 4 The start / stop module includes a solenoid valve 16, which is threadedly connected to the first heat fusion joint 12 via a fixed pipe 24. The solenoid valve 16 is also connected to the feeding pipe 28 via a quick connector 11 and a universal joint 17 to adjust the relative angle between the universal joint 17 and the insulating pipe 14. A controller 21 and a second battery 22 are installed on the solenoid valve 16. The second battery 22 is powered by a removable lithium battery and is electrically connected to the solenoid valve 16 to supply power to the solenoid valve 16.

[0024] The spraying module includes an internal threaded connector 18, one end of which is connected to a universal tube 17, and the other end of which is connected to an annular tube 20. Several atomizing nozzles 19 are installed inside the annular tube 20.

[0025] The controller 21 is connected to a remote controller 23, which is an NEC infrared remote controller. It communicates wirelessly with the controller 21 through the existing NEC protocol to control the opening and closing of the solenoid valve 16.

[0026] The controller 21 includes a housing, inside which are installed a BQ-IRTM infrared codec module, an S8050 transistor, an HS0038B infrared emitting tube, an LM2596 step-down module, an STC89C52 microcontroller, and a 5V relay (G5V-1), and outside the housing is an HS0038 infrared receiving tube.

[0027] The controller 21 generates an coded signal conforming to the NEC protocol via an STC89C52 microcontroller. After being amplified by an S8050 transistor, it drives an HS0038B infrared emitting diode to transmit infrared commands with a 38kHz carrier modulation. The receiving end HS0038 infrared receiving diode demodulates the infrared signal into a baseband signal, which is then transmitted to the BQ-IRTM-16 infrared codec module for NEC protocol decoding. The decoding result is output to the STC89C52 microcontroller via the DATA pin. After detecting the decoded signal, the STC89C52 microcontroller outputs a control level to drive the S8050 transistor. The transistor controls the engagement or disengagement of the 5V relay (G5V-1). The normally open terminal of the 5V relay (G5V-1) connects or disconnects the circuit between the 24V power supply and the solenoid valve 16, thereby controlling the switching of the solenoid valve 16. The LM2596 step-down module converts the external 24V power supply to 5V to power the HS0038 infrared receiver, the STC89C52 microcontroller, and the 5V relay (G5V-1). The 1N4001 diode is connected in parallel across the coil of the 5V relay (G5V-1) to absorb the back electromotive force when the power is off, protecting the S8050 transistor.

[0028] One end of the insulating tube 14 is connected to several extension tubes 30 in sequence through the second heat fusion joint 29. Both ends of the extension tube 30 are connected to the second heat fusion joint 29. The last second heat fusion joint 29 is connected to the fixed shell 10. The lengths of the insulating tube 14 and the extension tubes 30 are both 0.6m-1.8m.

[0029] The working process of this utility model: Select and assemble the insulating tube 14 and extension tube 30 according to the work area. Adjust the relative angle between the universal tube 17 and the insulating tube 14 according to the spraying direction. Open the valve at the end of the three-way liquid valve 7 connected to the feed box 9. Turn on the air compressor 2. Drive the pneumatic plunger pump 6 with compressed air to draw paint from the feed box 9 and pressurize the paint. Send a remote control signal to the controller 21 through the remote controller 23. The controller 21 controls the solenoid valve 16 to open. The high-pressure paint reaches the atomizing nozzle 19, thereby realizing the spraying of insulating paint. After the spraying operation is completed, close the valve at the end of the three-way liquid valve 7 connected to the feed box 9. Open the valve at the end of the three-way liquid valve 7 connected to the cleaning box 8. Send a remote control signal to the controller 21 through the remote controller 23. The controller 21 controls the solenoid valve 16 to open. The cleaning liquid reaches the atomizing nozzle 19, thereby realizing the cleaning of tools.

[0030] Example 1: The live-line insulation spraying tool includes a pneumatic plunger pump 6. The pneumatic plunger pump 6 is connected to an air source dual unit 4 through a first air supply pipe 3. The air source dual unit 4 is connected to an air compressor 2 through a second air supply pipe 25. The feed port of the pneumatic plunger pump 6 is connected to a feeding module through a first feeding pipe 5. The discharge port of the pneumatic plunger pump 6 is connected to a material conveying unit through a feeding pipe 28. The material connection unit is connected to an operation execution unit.

[0031] The material conveying unit includes a fixed shell 10. One end of the fixed shell 10 is connected to an insulating tube 14 via a second heat fusion joint 29. The other end of the insulating tube 14 is connected to a first heat fusion joint 12. The first heat fusion joint 12 is connected to the operation execution unit. The feeding tube 28 passes through the fixed shell 10 and is connected to the operation execution unit via a quick connector 11. The quick connector 11 is connected to the insulating tube 14 via a fixed rope 13. A handle 15 is fixed on the insulating tube 14.

[0032] One end of the insulating tube 14 is connected to several extension tubes 30 in sequence through the second heat fusion joint 29. Both ends of the extension tube 30 are connected to the second heat fusion joint 29. The last second heat fusion joint 29 is connected to the fixed shell 10. The length of both the insulating tube 14 and the extension tube 30 is 0.6m.

[0033] Example 2: The live-line insulation spraying tool includes a pneumatic plunger pump 6. The pneumatic plunger pump 6 is connected to an air source dual unit 4 through a first air supply pipe 3. The air source dual unit 4 is connected to an air compressor 2 through a second air supply pipe 25. The feed port of the pneumatic plunger pump 6 is connected to a feeding module through a first feeding pipe 5. The discharge port of the pneumatic plunger pump 6 is connected to a material conveying unit through a feeding pipe 28. The material connection unit is connected to an operation execution unit. A first battery 1 is installed in the insulating housing of the air compressor 2.

[0034] The feeding module includes a three-way liquid valve 7. One end of the three-way liquid valve 7 is threadedly connected to the first feeding pipe 5, and the other two ends of the three-way liquid valve 7 are respectively threadedly connected to the cleaning box 8 and the feeding box 9 through the second feeding pipe 26 and the third feeding pipe 27.

[0035] The material conveying unit includes a fixed shell 10. One end of the fixed shell 10 is connected to an insulating tube 14 via a second heat fusion joint 29. The other end of the insulating tube 14 is connected to a first heat fusion joint 12. The first heat fusion joint 12 is connected to the operation execution unit. The feeding tube 28 passes through the fixed shell 10 and is connected to the operation execution unit via a quick connector 11. The quick connector 11 is connected to the insulating tube 14 via a fixed rope 13. A handle 15 is fixed on the insulating tube 14.

[0036] One end of the insulating tube 14 is connected to several extension tubes 30 in sequence through the second heat fusion joint 29. Both ends of the extension tube 30 are connected to the second heat fusion joint 29. The last second heat fusion joint 29 is connected to the fixed shell 10. The length of both the insulating tube 14 and the extension tube 30 is 1.2m.

[0037] Example 3: The live-line insulation spraying tool includes a pneumatic plunger pump 6. The pneumatic plunger pump 6 is connected to an air source dual unit 4 through a first air supply pipe 3. The air source dual unit 4 is connected to an air compressor 2 through a second air supply pipe 25. The feed port of the pneumatic plunger pump 6 is connected to a feeding module through a first feeding pipe 5. The discharge port of the pneumatic plunger pump 6 is connected to a material conveying unit through a feeding pipe 28. The material connection unit is connected to an operation execution unit.

[0038] The feeding module includes a three-way liquid valve 7. One end of the three-way liquid valve 7 is threadedly connected to the first feeding pipe 5, and the other two ends of the three-way liquid valve 7 are respectively threadedly connected to the cleaning box 8 and the feeding box 9 through the second feeding pipe 26 and the third feeding pipe 27.

[0039] The material conveying unit includes a fixed shell 10. One end of the fixed shell 10 is connected to an insulating tube 14 via a second heat fusion joint 29. The other end of the insulating tube 14 is connected to a first heat fusion joint 12. The first heat fusion joint 12 is connected to the operation execution unit. The feeding tube 28 passes through the fixed shell 10 and is connected to the operation execution unit via a quick connector 11. The quick connector 11 is connected to the insulating tube 14 via a fixed rope 13. A handle 15 is fixed on the insulating tube 14.

[0040] The operation execution unit includes a start-stop module, which is threadedly connected to the first hot melt joint 12 via a fixed pipe 24. The start-stop module is also connected to the feeding pipe 28 via a quick connector 11. One end of the start-stop module is connected to a universal tube 17, and the other end of the universal tube 17 is connected to a spraying module.

[0041] One end of the insulating tube 14 is connected to several extension tubes 30 in sequence through the second heat fusion joint 29. Both ends of the extension tube 30 are connected to the second heat fusion joint 29. The last second heat fusion joint 29 is connected to the fixed shell 10. The length of both the insulating tube 14 and the extension tube 30 is 1.8m.

[0042] Example 4: The live-line insulation spraying tool includes a pneumatic plunger pump 6. The pneumatic plunger pump 6 is connected to an air source dual unit 4 through a first air supply pipe 3. The air source dual unit 4 is connected to an air compressor 2 through a second air supply pipe 25. The feed port of the pneumatic plunger pump 6 is connected to a feeding module through a first feeding pipe 5. The discharge port of the pneumatic plunger pump 6 is connected to a material conveying unit through a feeding pipe 28. The material connection unit is connected to an operation execution unit.

[0043] The material conveying unit includes a fixed shell 10. One end of the fixed shell 10 is connected to an insulating tube 14 via a second heat fusion joint 29. The other end of the insulating tube 14 is connected to a first heat fusion joint 12. The first heat fusion joint 12 is connected to the operation execution unit. The feeding tube 28 passes through the fixed shell 10 and is connected to the operation execution unit via a quick connector 11. The quick connector 11 is connected to the insulating tube 14 via a fixed rope 13. A handle 15 is fixed on the insulating tube 14.

[0044] The operation execution unit includes a start-stop module, which is threadedly connected to the first hot melt joint 12 via a fixed pipe 24. The start-stop module is also connected to the feeding pipe 28 via a quick connector 11. One end of the start-stop module is connected to a universal tube 17, and the other end of the universal tube 17 is connected to a spraying module.

[0045] The spraying module includes an internal threaded connector 18, one end of which is connected to a universal tube 17, and the other end of which is connected to an annular tube 20. Several atomizing nozzles 19 are installed inside the annular tube 20.

[0046] Example 5: The live-line insulation spraying tool includes a pneumatic plunger pump 6. The pneumatic plunger pump 6 is connected to an air source dual unit 4 through a first air supply pipe 3. The air source dual unit 4 is connected to an air compressor 2 through a second air supply pipe 25. The feed port of the pneumatic plunger pump 6 is connected to a feeding module through a first feeding pipe 5. The discharge port of the pneumatic plunger pump 6 is connected to a material conveying unit through a feeding pipe 28. The material connection unit is connected to an operation execution unit.

[0047] The material conveying unit includes a fixed shell 10. One end of the fixed shell 10 is connected to an insulating tube 14 via a second heat fusion joint 29. The other end of the insulating tube 14 is connected to a first heat fusion joint 12. The first heat fusion joint 12 is connected to the operation execution unit. The feeding tube 28 passes through the fixed shell 10 and is connected to the operation execution unit via a quick connector 11. The quick connector 11 is connected to the insulating tube 14 via a fixed rope 13. A handle 15 is fixed on the insulating tube 14.

[0048] The operation execution unit includes a start-stop module, which is threadedly connected to the first hot melt joint 12 via a fixed pipe 24. The start-stop module is also connected to the feeding pipe 28 via a quick connector 11. One end of the start-stop module is connected to a universal tube 17, and the other end of the universal tube 17 is connected to a spraying module.

[0049] The start / stop module includes a solenoid valve 16, which is threadedly connected to the first hot melt joint 12 via a fixed pipe 24, connected to the feed pipe 28 via a quick connector 11, and connected to a universal joint 17. A controller 21 and a second battery 22 are installed on the solenoid valve 16.

[0050] Example 6: The live-line insulation spraying tool includes a pneumatic plunger pump 6. The pneumatic plunger pump 6 is connected to an air source dual unit 4 through a first air supply pipe 3. The air source dual unit 4 is connected to an air compressor 2 through a second air supply pipe 25. The feed port of the pneumatic plunger pump 6 is connected to a feeding module through a first feeding pipe 5. The discharge port of the pneumatic plunger pump 6 is connected to a material conveying unit through a feeding pipe 28. The material connection unit is connected to an operation execution unit. A first battery 1 is installed in the insulating housing of the air compressor 2.

[0051] The material conveying unit includes a fixed shell 10. One end of the fixed shell 10 is connected to an insulating tube 14 via a second heat fusion joint 29. The other end of the insulating tube 14 is connected to a first heat fusion joint 12. The first heat fusion joint 12 is connected to the operation execution unit. The feeding tube 28 passes through the fixed shell 10 and is connected to the operation execution unit via a quick connector 11. The quick connector 11 is connected to the insulating tube 14 via a fixed rope 13. A handle 15 is fixed on the insulating tube 14.

[0052] The operation execution unit includes a start-stop module, which is threadedly connected to the first hot melt joint 12 via a fixed pipe 24. The start-stop module is also connected to the feeding pipe 28 via a quick connector 11. One end of the start-stop module is connected to a universal tube 17, and the other end of the universal tube 17 is connected to a spraying module.

[0053] The start / stop module includes a solenoid valve 16, which is threadedly connected to the first hot melt joint 12 via a fixed pipe 24, connected to the feed pipe 28 via a quick connector 11, and connected to a universal joint 17. A controller 21 and a second battery 22 are installed on the solenoid valve 16.

[0054] The spraying module includes an internal threaded connector 18, one end of which is connected to a universal tube 17, and the other end of which is connected to an annular tube 20. Several atomizing nozzles 19 are installed inside the annular tube 20.

[0055] The controller 21 is connected to the remote controller 23. One end of the insulating tube 14 is connected to several extension tubes 30 in sequence through the second heat fusion joint 29. Both ends of the extension tubes 30 are connected to the second heat fusion joint 29. The last second heat fusion joint 29 is connected to the fixed shell 10.

Claims

1. A live-line insulation spraying tool for power distribution lines, characterized in that, It includes a pneumatic plunger pump (6), which is connected to an air source dual unit (4) through a first air supply pipe (3). The air source dual unit (4) is connected to an air compressor (2) through a second air supply pipe (25). The feed port of the pneumatic plunger pump (6) is connected to a feeding module through a first feeding pipe (5). The discharge port of the pneumatic plunger pump (6) is connected to a material conveying unit through a feeding pipe (28). The material connection unit is connected to an operation execution unit.

2. The live-line insulation spraying tool for power distribution lines according to claim 1, characterized in that, The first battery (1) is installed in the insulating housing of the air compressor (2).

3. The live-line insulation spraying tool for power distribution lines according to claim 1, characterized in that, The feeding module includes a three-way liquid valve (7), one end of which is threaded to the first feeding pipe (5), and the other two ends of the three-way liquid valve (7) are threaded to the cleaning box (8) and the feeding box (9) through the second feeding pipe (26) and the third feeding pipe (27), respectively.

4. The live-line insulation spraying tool for power distribution lines according to any one of claims 1-3, characterized in that, The material conveying unit includes a fixed shell (10), which is connected to one end of an insulating tube (14) via a second heat fusion joint (29). The other end of the insulating tube (14) is connected to a first heat fusion joint (12), which is connected to an operation execution unit. A feeding tube (28) passes through the fixed shell (10) and is connected to the operation execution unit via a quick connector (11). The quick connector (11) is connected to the insulating tube (14) via a fixed rope (13), and a handle (15) is fixed on the insulating tube (14).

5. The live-line insulation spraying tool for power distribution lines according to claim 4, characterized in that, The operation execution unit includes a start-stop module. The start-stop module is threadedly connected to the first hot melt joint (12) through a fixed pipe (24). The start-stop module is connected to the feeding pipe (28) through a quick connector (11). The start-stop module is connected to one end of a universal tube (17), and the other end of the universal tube (17) is connected to a spraying module.

6. The live-line insulation spraying tool for power distribution lines according to claim 5, characterized in that, The start / stop module includes a solenoid valve (16), which is threadedly connected to the first hot melt joint (12) via a fixed pipe (24), and is connected to the feeding pipe (28) via a quick connector (11). The solenoid valve (16) is also connected to a universal joint (17), and a controller (21) and a second battery (22) are installed on the solenoid valve (16).

7. The live-line insulation spraying tool for power distribution lines according to claim 5 or 6, characterized in that, The spraying module includes an internal threaded connector (18), one end of which is connected to a universal tube (17), and the other end of which is connected to an annular tube (20). Several atomizing nozzles (19) are installed inside the annular tube (20).

8. The live-line insulation spraying tool for power distribution lines according to claim 6, characterized in that, The controller (21) is communicatively connected to a remote controller (23).

9. The live-line insulation spraying tool for power distribution lines according to claim 4, characterized in that, One end of the insulating tube (14) is connected to several extension tubes (30) in sequence through a second heat fusion joint (29). Both ends of the extension tubes (30) are connected to the second heat fusion joints (29), and the last second heat fusion joint (29) is connected to the fixed shell (10).

10. The live-line insulation spraying tool for power distribution lines according to claim 9, characterized in that, The lengths of both the insulating tube (14) and the extended tube (30) are 0.6m-1.8m.