Power line support power fitting

Abstract

The present application relates to the technical field of electric power fittings, in particular to a kind of electric power fittings for electric power line frame, comprising: insulating puncture wire clamp body, the insulating puncture wire clamp body includes upper shell, lower shell, the outer wall of the insulating puncture wire clamp body is detachably connected with moving mechanism;The moving mechanism includes inverted U shell, the inner peripheral wall of the inverted U shell is provided with a plurality of sliding grooves, the inner wall of the sliding groove is slidably connected with sliding shell.The equipment is integrated with moving mechanism, automatic cleaning system and intelligent installation mechanism, and a complete automatic operation closed loop is constructed, the device can be independently positioned along cable, under the coordination of PLC controller, wet sponge and dry sponge are sequentially rotated to clean the surface of cable, effectively removing oxide layer and dirt;When installing, the screw tightening torque is intelligently judged by speed monitoring, to ensure that the puncture depth is accurately controllable, without manual intervention throughout, greatly improving installation efficiency and consistency.

Description

Technical Field

[0001] This invention relates to the field of power fittings technology, specifically to a power fitting for power line erection. Background Technology

[0002] In the overhead installation of power lines, insulation piercing clamps are a key hardware widely used in cable branch connections. Traditional piercing clamps usually rely on manual installation, requiring operators to perform steps such as positioning, tightening bolts, and insulation piercing on site. This results in problems such as low efficiency, high labor intensity, and installation quality depending on the experience of the personnel.

[0003] Existing insulation piercing clamps have significant functional defects, primarily insufficient automation and a failure to form a complete closed-loop operation. Firstly, in the pre-installation stage, automated cable surface cleaning is generally lacking, allowing dirt and oxide layers to increase contact resistance. Secondly, in the crucial tightening stage, bolt tightening relies on preset programs or manual judgment, failing to detect changes in piercing depth and torque in real time, posing a risk of poor connection or damage from overtightening. Finally, after installation, the lack of real-time online monitoring of the connection status creates potential hazards for long-term line operation. These deficiencies in key aspects of the entire process severely restrict the improvement of installation efficiency and quality. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a power fitting for power line erection.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides power fittings for power line erection, comprising:

[0007] An insulating piercing clamp body, comprising an upper shell and a lower shell, wherein a moving mechanism is detachably connected to the outer wall of the insulating piercing clamp body;

[0008] The moving mechanism includes an inverted U-shaped shell, the inner peripheral wall of which is provided with multiple sliding grooves, the inner wall of which is slidably connected to a sliding shell, the inner wall of which is rotatably connected to a driving wheel and a driven wheel, the outer wall of which is fixedly connected to a first motor, the output end of which is fixedly connected to the driving wheel, and the inner wall of which is fixedly connected to a second electric telescopic rod, the telescopic end of which is fixedly connected to the outer wall of which.

[0009] An automatic installation mechanism includes two sliding grooves on the outer wall of the lower shell. A push rod is slidably connected to the inner wall of each sliding groove. A permanent magnet plate is fixedly connected to the inner wall of each sliding groove. An electromagnetic block is embedded at the front end of each push rod. The electromagnetic block is magnetically attracted to the permanent magnet plate. A mounting plate is fixedly connected to the outer wall of each push rod. A horizontal plate is fixedly connected to the outer wall of the mounting plate. A multi-stage electric telescopic rod is fixedly connected between the horizontal plate and the inverted U-shaped shell.

[0010] Preferably, the insulating piercing clamp body further includes two symmetrical flexible connecting strips fixedly connected between the lower shell and the upper shell. The top end of the lower shell has two symmetrical threaded grooves, and the top end of the upper shell has two symmetrical insertion holes. Two bolts are inserted into the insertion holes, and the ends of the bolts are threaded to the inner wall of the threaded grooves. The bottom end of the upper shell is fixedly connected to two symmetrical upper piercing tooth plates, and the top end of the lower shell is fixedly connected to two symmetrical lower piercing tooth plates. Temperature detectors are embedded inside the upper and lower piercing tooth plates, and the outer shells of the temperature detectors are made of insulating material. A frustum-shaped protective head is fixedly connected between the upper shell and the lower shell. The temperature detectors are electrically connected to a PLC controller.

[0011] Preferably, an arc-shaped plate is fixedly connected to the top of the upper shell, and the other end of the arc-shaped plate is slidably connected to the outer wall of the lower shell. Two symmetrical hinge plates are fixedly connected to the outer wall of the lower shell away from the arc-shaped plate. An arc-shaped protective plate is elastically hinged between the two hinge plates. A first magnetic block is fixedly connected to the top of the arc-shaped protective plate. A second magnetic block that is magnetically attracted to the first magnetic block is embedded in the outer wall of the upper shell. A connecting rod is fixedly connected to the outer wall of the inverted U-shaped shell, and the outer wall of the connecting rod is in contact with the outer wall of the arc-shaped protective plate.

[0012] Preferably, the moving mechanism further includes an arc-shaped groove formed on the outer wall of the inverted U-shaped shell, an arc-shaped rotating plate rotatably connected to the inner wall of the arc-shaped groove, a semi-tooth ring fixedly connected to the outer wall of the arc-shaped rotating plate, and two symmetrical second motors fixedly connected to the outer wall of the inverted U-shaped shell. The output end of the second motor is fixedly connected to a gear, and both gears mesh with the semi-tooth ring.

[0013] Preferably, the inner wall of the arc-shaped rotating plate has two symmetrical telescopic grooves, and a third electric telescopic rod is fixedly connected to the inner wall of the telescopic groove. The telescopic end of the third electric telescopic rod is fixedly connected to an arc-shaped fixing plate. A wet sponge and a dry sponge are respectively fixedly connected to the outer wall of opposite sides of the two arc-shaped fixing plates. The PLC controller is electrically connected to the first motor, the second motor, the second electric telescopic rod, and the third electric telescopic rod to form a moving cleaning circuit.

[0014] Preferably, the automatic installation mechanism further includes an L-shaped plate fixedly connected to the top of the inverted U-shaped shell. Two symmetrical third motors are fixedly connected to the bottom of the L-shaped plate. A first electric telescopic rod is fixedly connected to the output end of the third motor. The telescopic end of the first electric telescopic rod has an annular groove. Two symmetrical fixing grooves are formed on the inner wall of the annular groove. An electromagnetic plate is fixedly connected to the inner wall of the fixing groove. A plastic spring is fixedly connected to the outer wall of the electromagnetic plate. A permanent magnet is fixedly connected to the other end of the plastic spring. A stop block is fixedly connected to the top of the permanent magnet. One side of the stop block is an arc-shaped surface. The electromagnetic plate and the permanent magnet are magnetically repelled. Two symmetrical arc-shaped blocks are rotatably connected to the inner wall of the annular groove. One end of each of the two arc-shaped blocks contacts the arc-shaped surfaces of the two stop blocks respectively.

[0015] Preferably, the bottom ends of the two arc-shaped blocks are fixedly connected to a fixed shell, and the inner wall of the fixed shell is fixedly connected to two symmetrical miniature electric telescopic rods. The telescopic ends of the miniature electric telescopic rods are fixedly connected to clamping plates for holding bolts. The PLC controller is electrically connected to the third motor, the first electric telescopic rod, the electromagnetic plate, the electromagnetic block, and the multi-stage electric telescopic rod to form an installation circuit.

[0016] Preferably, a shaped plate is fixedly connected to the bottom end of the inverted U-shaped shell, and a hinge groove is provided on the outer wall of the shaped plate facing the inverted U-shaped shell, and a clamp is provided on the inner wall of the hinge groove.

[0017] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0018] 1. This equipment integrates a moving mechanism, an automatic cleaning system, and an intelligent installation mechanism to create a complete automated operation loop. The device can move and position itself along the cable autonomously. Under the coordination of the PLC controller, wet and dry sponges rotate and clean the cable surface in sequence, effectively removing oxide layers and dirt. During installation, the bolt tightening torque is intelligently determined by speed monitoring to ensure precise and controllable puncture depth. No manual intervention is required throughout the process, which greatly improves installation efficiency and consistency.

[0019] 2. By setting up a rotating cleaning process with wet and dry sponges, dirt and oxide layers on the cable surface are automatically removed, ensuring the cleanliness of the contact surface; after installation, the temperature detector inside the piercing tooth plate monitors the connection status in real time, and the automatically reset arc-shaped protection plate isolates environmental corrosion, thereby significantly reducing contact resistance and fault risk, and improving the long-term stability of the line.

[0020] 3. By integrating the moving mechanism, automatic cleaning system, and intelligent installation mechanism through the PLC controller, a complete closed loop of "autonomous movement - automatic cleaning - intelligent fastening - status monitoring" is formed, realizing unmanned intervention throughout the entire installation process of this type of hardware. The motor drive circuit and the signal amplification or switching control of the PLC controller are supported by metal oxide semiconductor field-effect transistors. At the same time, the control loop integrates an insulated gate bipolar transistor module to improve the power density and anti-interference capability of the loop, ensuring stable power supply and signal transmission for the moving cleaning and automatic installation processes. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0025] Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0026] Figure 5 This is a three-dimensional cross-sectional structural diagram of the first electric telescopic rod of the present invention;

[0027] Figure 6 This is a three-dimensional cross-sectional structural diagram of the insulating piercing clamp body of the present invention.

[0028] Reference numerals: 1. Insulating piercing clamp body; 11. Upper shell; 12. Lower shell; 13. Flexible connecting strip; 14. Bolt; 15. Upper piercing tooth plate; 16. Lower piercing tooth plate; 17. Frustum-shaped protective head; 18. Arc-shaped plate; 19. Hinge plate; 110. Arc-shaped protective plate; 111. First magnetic block; 112. Connecting rod; 2. Moving mechanism; 21. Inverted U-shaped shell; 22. Slide groove; 23. Sliding shell; 24. Driving wheel; 25. Driven wheel; 26. First motor; 27. Second electric telescopic rod; 28. Arc-shaped groove; 29. ​​Arc-shaped rotating plate; 210. Semi-toothed ring; 211. Second motor; 212. Gear; 213. Telescopic groove; 214. Third electric telescopic rod; 215. Wet sponge; 216. Dry sponge; 3. Automatic installation mechanism; 31. Sliding groove; 32. Push rod; 33. Permanent magnet plate; 34. Electromagnetic block; 35. Mounting plate; 36. Horizontal plate; 37. Multi-stage electric telescopic rod; 38. L-shaped plate; 39. Third motor; 310. First electric telescopic rod; 311. Circular groove; 312. Fixing groove; 313. Electromagnetic plate; 314. Plastic spring; 315. Permanent magnet block; 316. Stop block; 317. Arc-shaped block; 318. Fixing shell; 319. Miniature electric telescopic rod; 320. Clamping plate; 321. Irregularly shaped plate; 322. Hinge groove; 323. Clip. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] The present invention will be further described below with reference to embodiments.

[0031] Example: Refer to Figures 1 to 6 A power fitting for power line erection, comprising:

[0032] The insulating piercing clamp body 1 includes an upper shell 11 and a lower shell 12. A moving mechanism 2 is detachably connected to the outer wall of the insulating piercing clamp body 1.

[0033] The moving mechanism 2 includes an inverted U-shaped shell 21. The inner peripheral wall of the inverted U-shaped shell 21 is provided with multiple sliding grooves 22. The inner wall of the sliding grooves 22 is slidably connected to a sliding shell 23. The inner wall of the sliding shell 23 is rotatably connected to a driving wheel 24 and a driven wheel 25. The outer wall of the sliding shell 23 is fixedly connected to a first motor 26. The output end of the first motor 26 is fixedly connected to the driving wheel 24. The inner wall of the sliding shell 23 is fixedly connected to a second electric telescopic rod 27. The telescopic end of the second electric telescopic rod 27 is fixedly connected to the outer wall of the sliding shell 23.

[0034] The automatic installation mechanism 3 includes two sliding grooves 31 opened on the outer wall of the lower shell 12. Push rods 32 are slidably connected to the inner walls of the two sliding grooves 31. Permanent magnet plates 33 are fixedly connected to the inner walls of the sliding grooves 31. An electromagnetic block 34 is embedded at the front end of the push rod 32. The electromagnetic block 34 and the permanent magnet plate 33 are magnetically attracted. An installation plate 35 is fixedly connected to the outer wall of the push rod 32. A horizontal plate 36 is fixedly connected to the outer wall of the installation plate 35. A multi-stage electric telescopic rod 37 is fixedly connected between the horizontal plate 36 and the inverted U-shaped shell 21.

[0035] The insulating piercing clamp body 1 also includes two symmetrical flexible connecting strips 13 fixedly connected between the lower shell 12 and the upper shell 11. The top of the lower shell 12 has two symmetrical threaded grooves, and the top of the upper shell 11 has two symmetrical insertion holes. Two bolts 14 are inserted into the insertion holes, and the ends of the bolts 14 are threaded to the inner wall of the threaded grooves. The bottom of the upper shell 11 is fixedly connected to two symmetrical upper piercing tooth plates 15, and the top of the lower shell 12 is fixedly connected to two symmetrical lower piercing tooth plates 16. Temperature detectors are embedded inside the upper piercing tooth plates 15 and the lower piercing tooth plates 16, and the outer shells of the temperature detectors are made of insulating material. A frustum-shaped protective head 17 is fixedly connected between the upper shell 11 and the lower shell 12. The temperature detectors are electrically connected to a PLC controller.

[0036] An arc-shaped plate 18 is fixedly connected to the top of the upper shell 11. The other end of the arc-shaped plate 18 is slidably connected to the outer wall of the lower shell 12. Two symmetrical hinge plates 19 are fixedly connected to the outer wall of the lower shell 12 away from the arc-shaped plate 18. An arc-shaped protective plate 110 is elastically hinged between the two hinge plates 19. A first magnetic block 111 is fixedly connected to the top of the arc-shaped protective plate 110. A second magnetic block that is magnetically attracted to the first magnetic block 111 is embedded in the outer wall of the upper shell 11. A connecting rod 112 is fixedly connected to the outer wall of the inverted U-shaped shell 21. The outer wall of the connecting rod 112 is in contact with the outer wall of the arc-shaped protective plate 110.

[0037] The moving mechanism 2 also includes an arc-shaped groove 28 opened on the outer wall of the inverted U-shaped shell 21. An arc-shaped rotating plate 29 is rotatably connected to the inner wall of the arc-shaped groove 28. A semi-tooth ring 210 is fixedly connected to the outer wall of the arc-shaped rotating plate 29. Two symmetrical second motors 211 are fixedly connected to the outer wall of the inverted U-shaped shell 21. Gears 212 are fixedly connected to the output end of the second motors 211. Both gears 212 mesh with the semi-tooth ring 210.

[0038] The inner wall of the arc-shaped rotating plate 29 has two symmetrical telescopic grooves 213. The inner wall of the telescopic groove 213 is fixedly connected to a third electric telescopic rod 214. The telescopic end of the third electric telescopic rod 214 is fixedly connected to an arc-shaped fixing plate. The outer walls of the opposite sides of the two arc-shaped fixing plates are respectively fixedly connected to a wet sponge 215 and a dry sponge 216. The PLC controller is electrically connected to the first motor 26, the second motor 211, the second electric telescopic rod 27, and the third electric telescopic rod 214 to form a moving cleaning circuit.

[0039] The automatic installation mechanism 3 also includes an L-shaped plate 38 fixedly connected to the top of the inverted U-shaped shell 21. Two symmetrical third motors 39 are fixedly connected to the bottom of the L-shaped plate 38. A first electric telescopic rod 310 is fixedly connected to the output end of the third motor 39. A circular groove 311 is opened at the telescopic end of the first electric telescopic rod 310. Two symmetrical fixing grooves 312 are opened on the inner wall of the circular groove 311. An electromagnetic plate 313 is fixedly connected to the inner wall of the fixing groove 312. A plastic spring 314 is fixedly connected to the outer wall of the electromagnetic plate 313. A permanent magnet block 315 is fixedly connected to the other end of the plastic spring 314. A stop block 316 is fixedly connected to the top of the permanent magnet block 315. One side of the stop block 316 is an arc surface. The electromagnetic plate 313 and the permanent magnet block 315 are magnetically repelled. Two symmetrical arc blocks 317 are rotatably connected to the inner wall of the circular groove 311. One end of the two arc blocks 317 contacts the arc surface of the two stop blocks 316 respectively.

[0040] The bottom ends of the two arc-shaped blocks 317 are fixedly connected to a fixed shell 318. The inner wall of the fixed shell 318 is fixedly connected to two symmetrical miniature electric telescopic rods 319. The telescopic ends of the miniature electric telescopic rods 319 are fixedly connected to a clamping plate 320 for holding bolts 14. The PLC controller is electrically connected to the third motor 39, the first electric telescopic rod 310, the electromagnetic plate 313, the electromagnetic block 34, and the multi-stage electric telescopic rod 37 to form an installation circuit.

[0041] The bottom end of the inverted U-shaped shell 21 is fixedly connected to a shaped plate 321. A hinge groove 322 is provided on the outer wall of the section of the shaped plate 321 facing the inverted U-shaped shell 21. A clip 323 is provided on the inner wall of the hinge groove 322.

[0042] The working principle of this invention is as follows:

[0043] The operator first places the secondary cable to be spliced ​​precisely inside the arc-shaped protective plate 110 of the lower shell 12 of the insulation piercing clamp, and uses the special clamp 323 at the bottom of the inverted U shell 21 to secure it reliably, ensuring that the secondary cable remains stable and does not shift during subsequent movement.

[0044] After the fixing is completed, the inverted U-shaped shell 21 is placed on the main cable that needs to be diverted. Then the moving mechanism 2 is started. The inverted U-shaped shell 21 structure firmly "grips" the main cable through multiple sliding shells 23 on the inner side and the active wheel 24 driven by the first motor 26, driving the entire device to move smoothly along the line. Under the precise navigation of the PLC controller and manual control, the device accurately arrives at the predetermined installation area and automatically cleans the main cable.

[0045] The cleaning circuit is activated by the PLC controller, which controls the second motor 211 to drive the gear set 212, causing the arc-shaped rotating plate 29 equipped with a semi-toothed ring 210 to rotate uniformly around the cable. At the same time, the third electric telescopic rod 214 extends precisely, allowing the wet sponge 215 on the arc-shaped rotating plate 29 to first closely adhere to the cable surface. Through rotational friction, dirt and oxide layers are effectively removed. After wet wiping, the wet sponge 215 is retracted, and the dry sponge 216 extends out, using the same rotational method to dry the cable surface, creating clean and dry ideal contact conditions for subsequent installation.

[0046] After the cleaning process is completed, the core installation procedure is immediately started, and the automatic installation mechanism 3 begins a series of precise coordinated operations: the multi-stage electric telescopic rod 37 takes the lead in moving the horizontal plate 36 and the connected insulating piercing clamp body 1 toward the main cable, so that the upper shell 11 accurately covers the predetermined position. At the same time, during the movement of the insulating piercing clamp body 1, the clamp 323 that fixes the secondary cable will automatically release its constraint.

[0047] Then, the bolt 14 is tightened. First, the first electric telescopic rod 310 is moved downward by the PLC controller (the moving distance is a preset distance). Then, the micro electric telescopic rod 319 in the fixed shell 318 is activated to control the clamping plate 320 to firmly clamp the bolt 14. At this time, the bolt 14 tightening mechanism is in standby state: the electromagnetic plate 313 in the annular groove 311 is energized, generating a magnetic force that repels the permanent magnet block 315, overcoming the elastic force of the plastic spring 314, and pushing the stop block 316 upward to push the arc block 317, providing the necessary support for the rotation of the bolt 14.

[0048] With the continuous closing pressure provided by the multi-stage electric telescopic rod 37, the first electric telescopic rod 310 advances while being driven to rotate by the third motor 39 (with built-in speed detection function), smoothly screwing the bolt 14 into the threaded groove of the lower shell 12. During this tightening stage, the resistance to screwing the bolt 14 in is relatively large, and the third motor 39 detects that it is in a low-speed operating state. When the bolt 14 is tightened to the preset torque, the rotating arc block 317 will obtain sufficient torque, and its protruding part will forcefully press the stop block 316 downward, compressing the plastic spring 314 and overcoming the electromagnetic repulsion, so that the stop block 316 is released from the obstruction of the arc block 317.

[0049] Once stop 316 disengages, the rotational resistance decreases sharply, and the speed of the third motor 39 increases significantly. The PLC controller monitors this crucial speed change signal in real time. When it detects that the motor speed jumps from a low-speed load state to a high-speed no-load state, it immediately determines that bolt 14 has been tightened and sends a stop command to the third motor 39 and the first electric telescopic rod 310, closing the tightening process. This intelligent judgment mechanism based on speed feedback ensures the precise termination of the tightening process.

[0050] When the bolt 14 reaches the preset torque and the upper and lower shells 12 are fully tightened, the installation reaches a critical point—the upper and lower piercing teeth 16 pierce the cable insulation layer under strong pressure, forming a reliable electrical connection. After tightening, the multi-stage electric telescopic rod 37 drives the push rod 32 and the mounting plate 35 to retract (the connecting rod 112 no longer limits the arc-shaped protective plate 110), so that the installation mechanism is completely separated from the insulation piercing clamp body 1. At this time, the arc-shaped protective plate 110 of the lower shell 12 automatically resets under the action of elastic hinge, and then is fixed by the magnetic attraction of the first magnetic block 111 and the second magnetic block, which tightly shields the connection area like a protective cover, effectively preventing environmental corrosion.

[0051] Once installed, the insulation piercing clamp body 1 immediately enters the working state. The temperature detector embedded in the piercing tooth plate begins to monitor the temperature of the connection point in real time, and the data is continuously transmitted to the PLC controller to support intelligent early warning and maintenance decisions. At this point, the installation task at this point is successfully completed, and the moving mechanism 2 can detach from the insulation piercing clamp body 1, carrying the installation mechanism to the next location to start a new work cycle.

[0052] The metal-oxide-semiconductor field-effect transistors in the motor drive circuit and the signal amplification or switching control of the PLC controller provide underlying component support, and the insulated gate bipolar transistor module is integrated in the control circuit to improve the power density and anti-interference capability of the circuit, ensuring stable power supply and signal transmission for the mobile cleaning and automatic installation process.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power fitting for power line erection, characterized in that, include: The insulating piercing clamp body (1) includes an upper shell (11) and a lower shell (12). The outer wall of the insulating piercing clamp body (1) is detachably connected to a moving mechanism (2). The moving mechanism (2) includes an inverted U-shaped shell (21). The inner peripheral wall of the inverted U-shaped shell (21) is provided with a plurality of sliding grooves (22). The inner wall of the sliding grooves (22) is slidably connected to a sliding shell (23). The inner wall of the sliding shell (23) is rotatably connected to a driving wheel (24) and a driven wheel (25). The outer wall of the sliding shell (23) is fixedly connected to a first motor (26). The output end of the first motor (26) is fixedly connected to the driving wheel (24). The inner wall of the sliding shell (23) is fixedly connected to a second electric telescopic rod (27). The telescopic end of the second electric telescopic rod (27) is fixedly connected to the outer wall of the sliding shell (23). An automatic installation mechanism (3) includes two sliding grooves (31) opened on the outer wall of the lower shell (12). Push rods (32) are slidably connected to the inner walls of the two sliding grooves (31). A permanent magnet plate (33) is fixedly connected to the inner wall of the sliding grooves (31). An electromagnetic block (34) is embedded at the front end of the push rod (32). The electromagnetic block (34) is magnetically attracted to the permanent magnet plate (33). An installation plate (35) is fixedly connected to the outer wall of the push rod (32). A horizontal plate (36) is fixedly connected to the outer wall of the installation plate (35). A multi-stage electric telescopic rod (37) is fixedly connected between the horizontal plate (36) and the inverted U shell (21).

2. The power fitting for power line erection according to claim 1, characterized in that, The insulating piercing clamp body (1) also includes two symmetrical flexible connecting strips (13) fixedly connected between the lower shell (12) and the upper shell (11). The top of the lower shell (12) has two symmetrical threaded grooves, and the top of the upper shell (11) has two symmetrical insertion holes. Two bolts (14) are inserted into the insertion holes, and the ends of the bolts (14) are threaded to the inner wall of the threaded grooves. The bottom of the upper shell (11) is fixedly connected to two symmetrical upper piercing tooth plates (15), and the top of the lower shell (12) is fixedly connected to two symmetrical lower piercing tooth plates (16). Temperature detectors are embedded inside the upper piercing tooth plates (15) and the lower piercing tooth plates (16), and the outer shells of the temperature detectors are made of insulating material. A frustum-shaped protective head (17) is fixedly connected between the upper shell (11) and the lower shell (12). The temperature detectors are electrically connected to a PLC controller.

3. The power fitting for power line erection according to claim 2, characterized in that, An arc-shaped plate (18) is fixedly connected to the top of the upper shell (11). The other end of the arc-shaped plate (18) is slidably connected to the outer wall of the lower shell (12). Two symmetrical hinge plates (19) are fixedly connected to the outer wall of the lower shell (12) away from the arc-shaped plate (18). An arc-shaped protective plate (110) is elastically hinged between the two hinge plates (19). A first magnetic block (111) is fixedly connected to the top of the arc-shaped protective plate (110). A second magnetic block that is magnetically attracted to the first magnetic block (111) is embedded in the outer wall of the upper shell (11). A connecting rod (112) is fixedly connected to the outer wall of the inverted U-shaped shell (21). The outer wall of the connecting rod (112) is in contact with the outer wall of the arc-shaped protective plate (110).

4. The power fitting for power line erection according to claim 2, characterized in that, The moving mechanism (2) also includes an arc-shaped groove (28) opened on the outer wall of the inverted U-shaped shell (21). An arc-shaped rotating plate (29) is rotatably connected to the inner wall of the arc-shaped groove (28). A semi-tooth ring (210) is fixedly connected to the outer wall of the arc-shaped rotating plate (29). Two symmetrical second motors (211) are fixedly connected to the outer wall of the inverted U-shaped shell (21). A gear (212) is fixedly connected to the output end of the second motor (211). Both gears (212) mesh with the semi-tooth ring (210).

5. A power fitting for power line erection according to claim 4, characterized in that, The inner wall of the arc-shaped rotating plate (29) has two symmetrical telescopic grooves (213). The inner wall of the telescopic groove (213) is fixedly connected to a third electric telescopic rod (214). The telescopic end of the third electric telescopic rod (214) is fixedly connected to an arc-shaped fixing plate. The outer walls of the opposite sides of the two arc-shaped fixing plates are respectively fixedly connected to a wet sponge (215) and a dry sponge (216). The PLC controller is electrically connected to the first motor (26), the second motor (211), the second electric telescopic rod (27), and the third electric telescopic rod (214) to form a moving cleaning circuit.

6. A power fitting for power line erection according to claim 2, characterized in that, The automatic installation mechanism (3) further includes an L-shaped plate (38) fixedly connected to the top of the inverted U-shaped shell (21). Two symmetrical third motors (39) are fixedly connected to the bottom of the L-shaped plate (38). A first electric telescopic rod (310) is fixedly connected to the output end of each third motor (39). A circular groove (311) is provided at the telescopic end of the first electric telescopic rod (310). Two symmetrical fixing grooves (312) are provided on the inner wall of the circular groove (311). An electromagnetic plate (313) is fixedly connected to the inner wall of the fixing groove (312). A plastic spring (314) is fixedly connected to the outer wall of the magnetic plate (313). A permanent magnet block (315) is fixedly connected to the other end of the plastic spring (314). A stop block (316) is fixedly connected to the top of the permanent magnet block (315). One side of the stop block (316) is an arc-shaped surface. The electromagnetic plate (313) and the permanent magnet block (315) are magnetically repelled. Two symmetrical arc-shaped blocks (317) are rotatably connected to the inner wall of the annular groove (311). One end of each of the two arc-shaped blocks (317) contacts the arc-shaped surfaces of the two stop blocks (316).

7. A power fitting for power line erection according to claim 6, characterized in that, The bottom ends of the two arc-shaped blocks (317) are fixedly connected to a fixed shell (318). The inner wall of the fixed shell (318) is fixedly connected to two symmetrical miniature electric telescopic rods (319). The telescopic ends of the miniature electric telescopic rods (319) are fixedly connected to a clamping plate (320) for holding bolts (14). The PLC controller is electrically connected to the third motor (39), the first electric telescopic rod (310), the electromagnetic plate (313), the electromagnetic block (34), and the multi-stage electric telescopic rod (37) to form an installation circuit.

8. A power fitting for power line erection according to claim 1, characterized in that, The bottom end of the inverted U-shaped shell (21) is fixedly connected to a shaped plate (321). A hinge groove (322) is provided on the outer wall of the shaped plate (321) facing the inverted U-shaped shell (21). A clip (323) is provided on the inner wall of the hinge groove (322).

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