Protective device for cleaning power transmission line

Abstract

The invention relates to the field of power transmission line cleaning protection, and discloses a protection device for power transmission line cleaning, which comprises a protection frame body arranged below a power transmission line, the protection device further comprises a protection cover installed on the protection frame body, a protection net installed on the protection frame body and correspondingly located below the protection cover, an installation frame fixed to the protection frame body and assisting the protection frame body to be installed on the elevator, and a dust cover rotationally installed on the protection frame body and used for shielding and cleaning dust. A sliding seat is slidably mounted on the protective frame body, a supporting frame is fixedly mounted on the sliding seat, and a supporting assembly for limiting a power transmission line cleaning area and preventing cable cleaning shaking is arranged on the supporting frame; according to the protection device, the cable to be cleaned can be stretched and tightened, the cable is kept in a stable state during cleaning, and the cleaning construction safety of workers is improved.

Description

Technical Field

[0001] The invention relates to the field of power transmission line cleaning and protection, and in particular to a protection device for power transmission line cleaning. Background Art

[0002] Cleaning of transmission lines is an important part of ensuring safe and stable operation of the power system. Transmission lines are erected outdoors to transmit electricity. There are many unstable factors outdoors, such as birds building nests on transmission lines, kites or long banners entangled on transmission lines, etc. Foreign objects on the surface of transmission lines will cause transmission failures. Therefore, daily cleaning and maintenance of transmission lines are the basis for maintaining the normal operation of transmission lines. Some transmission lines are under greenhouses, houses, factories, trees, mining areas, etc. The cleaned foreign objects will fall downwards and affect the safety of the space below. Therefore, the use of protective devices when cleaning transmission lines can improve the safety of cleaning personnel and the cleaning environment.

[0003] Chinese patent CN208209392U discloses a protective tool for cleaning debris on a transmission line, comprising a device body and a water tank, a lifting connecting rod is provided at the lower end of the device body, a tool box is provided on the upper surface of the device body, a detachable bottom plate is provided on the inner surface of the device body, and a No. 1 rotating device and a No. 2 rotating device are provided at the upper end of the detachable bottom plate, a water spray device is provided at the lower end of the water tank, a plastic scraper is provided on one side of the No. 1 rotating device, and a scraper is provided on one side of the No. 2 rotating device; the protective tool is provided with a tool box, a water spray device and a plastic scraper, can carry tools to assist in cleaning debris, is conducive to the completion of the cleaning work, can clean the cable while cleaning, has a better cleaning effect, can clean the debris that the scraper has not cleaned up more thoroughly, and improves the quality of cable cleaning work.

[0004] Some transmission line cables are installed over long distances, and the cable connections between poles are relatively loose. Some existing cleaning and protective devices are not convenient for supporting and reinforcing the cables. During the cable cleaning process, the cables are touched and shaken, affecting the stability of the connection between the cables and the components on the poles. Some cable cleaning is done under power, and cable shaking also affects the safety of cleaning. In addition, large foreign objects on the surface of some cables are easy to clean up manually, and the protective devices can catch the fallen debris to avoid safety hazards caused by gravity. However, small foreign objects and dust on the surface of the cables are widely distributed and numerous, making them inconvenient for manual cleaning at high altitudes. Some protective devices cannot effectively protect against the diffuse dust during cleaning, interfering with the cleaning operations of the staff. Summary of the invention

[0005] In response to the above problems, a protective device for cleaning power transmission lines is provided. The power transmission line cables to be cleaned can be reinforced and tightened through the support assembly to keep the cables stable during cleaning. This solves the problem that the cables are shaken and impacted during cleaning, which affects the stability of the connection between the cables and the components on the poles. In addition, some cables are cleaned while energized, and cable shaking also affects the safety of cleaning.

[0006] In order to solve the problems of the prior art, the present invention provides a protective device for cleaning power transmission lines, comprising a protective frame arranged below the power transmission lines, the protective device also comprising a protective cover installed on the protective frame, a protective net installed on the protective frame and corresponding to below the protective cover, a mounting frame fixed on the protective frame to assist its installation on a lift, and a dust cover rotatably installed on the protective frame to block dust during cleaning; a sliding seat is slidably installed on the protective frame, a supporting frame is fixedly installed on the sliding seat, and a supporting component is provided on the supporting frame to limit the power transmission line cleaning area and prevent the cable from shaking during cleaning.

[0007] Preferably, the support assembly includes a C-shaped seat fixedly mounted on the support frame, a steering bracket is rotatably mounted in the C-shaped seat, a slider is longitudinally slidably mounted on the steering bracket, a main clamping seat is fixedly mounted on the slider, and the main clamping seat is snap-fitted and slidably mounted on the steering bracket; a bidirectional screw is rotatably mounted in the steering bracket, an internally threaded moving block is threadedly mounted on the bidirectional screw, and the internally threaded moving block is fixedly assembled with the slider.

[0008] Preferably, a convex disc is fixedly mounted on the main clamping seat, a guide rod is slidably connected to the convex disc, a reset spring is connected between the guide rod and the convex disc, an insulating auxiliary clamping seat is fixedly mounted on the guide rod, and the insulating auxiliary clamping seat is slidably mounted in the main clamping seat; the main clamping seat is provided with a rolling mechanism for evenly pushing the insulating auxiliary clamping seat downward to strengthen the clamping of the cable.

[0009] Preferably, the rolling mechanism includes a fixed frame fixedly mounted on the main clamping seat, a rolling plate is rotatably mounted on the fixed frame, a steering gear is mounted on the rolling plate, a limiting slide is laterally slidably connected to the fixed frame, and a steering rack meshing with the steering gear is fixedly mounted on the limiting slide.

[0010] Preferably, a driving rod is fixedly mounted on the limiting slide, a power rotating rod is rotatably mounted on the steering bracket, and the power rotating rod is rotatably connected to the driving rod.

[0011] Preferably, a cylinder is fixedly mounted on the protection frame body, a positioning seat is fixedly mounted on the lifting end of the cylinder, a positioning support rod is rotatably mounted on the positioning seat, and the positioning support rod is rotatably assembled with the sliding seat.

[0012] Preferably, the dust cover is provided with an air jet component for jet cleaning the surface of the power transmission line cable.

[0013] Preferably, the jet assembly includes a jet fixedly mounted on a dust cover, a jet main pipe for controlling gas transmission is mounted on the jet, and the jet main pipe is fixedly mounted on the dust cover; a plurality of nozzles are rotatably mounted at equal intervals on the jet main pipe, a support is fixedly mounted on the dust cover, and the nozzles are rotatably assembled with the support.

[0014] Preferably, a bevel gear is coaxially fixedly connected to the nozzle, and a through groove is provided on the dust cover, and the position of the through groove corresponds to the position of the bevel gear; a fixing frame is fixedly installed on the protective frame body, and a vertical pole is fixedly installed on the fixing frame, and the vertical pole is arranged through the through groove, and a conical gear ring is fixedly installed on the vertical pole, and the conical gear ring is meshingly assembled with the bevel gear.

[0015] Preferably, a mounting base that is engaged with the elevator is fixedly mounted on the mounting frame, a threaded pressure rod is threadedly assembled on the mounting base, and a mounting pressure plate is fixedly mounted on the threaded pressure rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with a support assembly to reinforce the cables of the power transmission line to prevent the cables from shaking during cleaning. The cables distributed in a horizontal row are clamped and limited by the main clamping seat in the support assembly. The insulating auxiliary clamping seat embedded in the main clamping seat is pressed on the surface of the cable. The insulating auxiliary clamping seat is evenly pressed on the surface of the cable by the rolling assembly. The operating cylinder pushes the positioning seat to move, and the sliding seat is pushed to move laterally under the transmission of the positioning support rod, so that the two groups of support assemblies move in opposite directions to stretch and tighten the cables of the power transmission line, so that the area of ​​the cable to be cleaned is tightened and fixed, avoiding the shaking and shaking of the cables under the force during the cleaning process, thereby improving the safety of the cable cleaning operation.

[0018] 2. The present invention is provided with structures such as a dust cover and a rotating nozzle. After cleaning large foreign objects on the cable surface, the dust cover is controlled to rotate to one side of the cable. The dust cover is controlled to rotate back and forth to drive the nozzle installed on the dust cover to rotate back and forth up and down. While the nozzle rotates up and down, the bevel gear and the conical gear ring are meshed to drive the nozzle to rotate back and forth left and right, so that the nozzle rotates in multiple directions to spray and clean small foreign objects and dust on the cable surface. During cleaning, the dust cover is blocked between the cable and the staff to prevent dust from spreading and affecting the staff. The protective device provides comprehensive protection and can spray to clean the cable surface, thereby increasing the functionality of the protective device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1The present invention is a schematic diagram of the three-dimensional structure of a protective frame of a protective device for cleaning power transmission lines.

[0020] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a protective cover of a protective device for cleaning power transmission lines.

[0021] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of a protective net of a protective device for cleaning power transmission lines.

[0022] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of a dust cover of a protective device for cleaning power transmission lines.

[0023] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of a mounting frame of a protective device for cleaning power transmission lines.

[0024] Figure 6 The present invention is a schematic diagram of the three-dimensional structure of a conical gear ring of a protective device for cleaning power transmission lines.

[0025] Figure 7 The present invention is a schematic diagram of the three-dimensional structure of a support frame of a protective device for cleaning power transmission lines.

[0026] Figure 8 The present invention is a schematic diagram of the three-dimensional structure of a main clamping seat of a protective device for cleaning power transmission lines.

[0027] Fig. 9 The present invention is a schematic diagram of a three-dimensional structure of a bidirectional screw of a protective device for cleaning power transmission lines.

[0028] Fig.10 The present invention is a schematic diagram of the three-dimensional structure of a driving rod of a protective device for clearing power transmission lines.

[0029] Fig.11 The present invention is a schematic diagram of the three-dimensional structure of an insulating pair clamping seat of a protective device for cleaning power transmission lines.

[0030] Fig.12 The present invention is a schematic diagram of the three-dimensional structure of a rolling plate of a protective device for cleaning power transmission lines.

[0031] Fig.13 The present invention is a schematic diagram of the three-dimensional structure of a guide rod of a protective device for cleaning power transmission lines.

[0032] Fig.14 The present invention is a schematic diagram of the three-dimensional structure of a steering gear of a protective device for cleaning power transmission lines.

[0033] Fig.15 The present invention is a schematic diagram of the side view structure of a steering rack of a protective device for clearing power transmission lines.

[0034] The numbers in the figure are:

[0035] 1. Protective frame; 21. Protective cover; 22. Protective net; 3. Mounting frame; 31. Mounting base; 32. Threaded pressure rod; 33. Mounting plate; 4. Dust cover; 41. Jet; 42. Jet main pipe; 43. Spray head; 431. Bevel gear; 432. Through groove; 433. Fixed frame; 434. Vertical rod; 435. Conical gear ring; 44. Support; 51. Sliding seat; 511. Cylinder; 512. Positioning seat; 513. Positioning support rod; 52. Support frame; 53. Support assembly; 531. C-type seat; 532. Steering bracket; 533. Sliding block; 534. Main clamping seat; 5341. Convex plate; 5342. Guide rod; 5343. Reset spring; 5344. Insulating auxiliary clamping seat; 535. Bidirectional screw; 536. Internal thread moving block; 6. Rolling mechanism; 61. Fixed stand; 62. Rolling plate; 63. Steering gear; 64. Limiting slide; 65. Steering rack; 66. Driving rod; 67. Power rotating rod. DETAILED DESCRIPTION

[0036] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] See also Figure 1-Figure 3 , Figure 7-10 As shown, a protective device for cleaning a power transmission line comprises a protective frame 1 arranged below the power transmission line, the protective device further comprises a protective cover 21 mounted on the protective frame 1, a protective net 22 mounted on the protective frame 1 and corresponding to below the protective cover 21, a mounting frame 3 fixed on the protective frame 1 to assist its installation on a lift, and a dust cover 4 rotatably mounted on the protective frame 1 to shield dust from cleaning; a slide 51 is slidably mounted on the protective frame 1, a support frame 52 is fixedly mounted on the slide 51, and a support assembly 53 is arranged on the support frame 52 to limit a power transmission line cleaning area and prevent the cable from shaking during cleaning; two groups of support assemblies 53 are symmetrically arranged about the central axis of the protective frame 1, and the two groups of support assemblies 53 are respectively clamped and supported at two sides of the area to be cleaned of the transmission line cables.

[0038] The transmission line cables are installed at a high height. When there are foreign objects on the surface that need to be cleaned, construction workers need to climb up to clean them. A lift can be used to lift the construction workers to the side of the cables. The protective frame 1 is installed at the edge of the lift bucket through the mounting frame 3. The protective cover 21 and the protective net 22 are arranged in the lower area of ​​the cables. The two sides of the cables to be cleaned are clamped and supported by the support assembly 53. The control slide 51 is sleeved on the protective frame 1 and slides, so that the two groups of support assemblies 53 move in opposite directions, so that the cables in the clamping area of ​​the two groups of support assemblies 53 are stretched and tightened to both sides to protect the cables. The stability of the cable in the clamping area is maintained. When the staff uses tools to clean foreign objects on the surface of the cable, such as bird nests, strip banners, kites, etc., the taut cable is stably confined above the protective cover 21. When the staff touches the cable during cleaning, the cable will not shake or sway, etc., thereby maintaining construction safety. Foreign objects cleaned from the surface of the cable fall downward into the protective cover 21. The protective cover 21 can be made of materials such as a net bag or a cloth bag. A protective net 22 is arranged under the protective cover 21 to protect the protective cover 21 and improve the carrying capacity of the protective device to receive and clean foreign objects.

[0039] The dust cover 4 is connected to the output end of the motor and rotates through the control of the motor. When cleaning large pieces of foreign matter, the dust cover 4 is controlled to rotate and be stored in the protective cover 21, so as to keep an unobstructed state between the cable to be cleaned and the staff, so that the staff can perform the cleaning operation, and it is also convenient for the staff to observe the state of the cable surface; when cleaning small pieces of foreign matter or dust, in order to reduce the impact of dust diffusion on the staff, the dust cover 4 is rotated to block between the cable and the staff, so as to enhance the protection of the staff when cleaning the cable.

[0040] See also Figure 7-10 As shown, the support assembly 53 includes a C-shaped seat 531 fixedly mounted on the support frame 52, a steering bracket 532 is rotatably mounted in the C-shaped seat 531, a slider 533 is longitudinally slidably mounted on the steering bracket 532, a main clamping seat 534 is fixedly mounted on the slider 533, and the main clamping seat 534 is slidably mounted on the steering bracket 532 in an engaging manner; a bidirectional screw 535 is rotatably mounted in the steering bracket 532, an internally threaded moving block 536 is threadedly mounted on the bidirectional screw 535, and the internally threaded moving block 536 is fixedly assembled with the slider 533; the steering bracket 532 is connected to the output end of the motor and rotated by the motor control.

[0041] The two sets of main clamping seats 534 are adjusted to the positions next to the cables, so that the cables are in the middle of the two sets of main clamping seats 534. The steering bracket 532 is then controlled to rotate so that the two sets of main clamping seats 534 are rotated to a state perpendicular to the cables, and the two sets of main clamping seats 534 are respectively located at the upper and lower positions of the cables. The operating motor controls the rotation of the bidirectional screw 535. Under the action of the threaded transmission, the internal threaded moving block 536 pushes the slider 533 sleeved on the steering bracket 532 to slide longitudinally. The slider 533 drives the main clamping seat 534 to move longitudinally synchronously, so that the upper and lower sets of main clamping seats 534 both move in the direction close to the cables, thereby clamping and limiting the cables.

[0042] See also Figure 7-Figure 15 As shown, a boss 5341 is fixedly mounted on the main clamping seat 534, a guide rod 5342 is slidably connected to the boss 5341, a return spring 5343 is connected between the guide rod 5342 and the boss 5341, an insulating auxiliary clamping seat 5344 is fixedly mounted on the guide rod 5342, and the insulating auxiliary clamping seat 5344 is slidably mounted in the main clamping seat 534; the main clamping seat 534 is provided with a rolling mechanism 6 which evenly pushes the insulating auxiliary clamping seat 5344 downward to strengthen the clamping of the cable.

[0043] While the main clamping seat 534 moves longitudinally to clamp and limit the cable, the rolling mechanism 6 evenly pushes the insulating sub-clamping seat 5344 embedded on the main clamping seat 534 to move further in the direction close to the cable. The insulating sub-clamping seat 5344 drives the guide rod 5342 to slide through the convex plate 5341, and the guide rod 5342 elastically stretches the reset spring 5343. The insulating sub-clamping seat 5344 evenly applies force to the surface of the cable, so that multiple cables distributed in a horizontal row can be clamped, so that when the mobile support assembly 53 stretches and tightens the cables, the multiple cables in the horizontal row can be stretched and tightened synchronously, avoiding the situation where some cables are not clamped and cannot be effectively stretched and tightened due to sliding with the support assembly 53.

[0044] See also Figure 11-Figure 15As shown, the rolling mechanism 6 includes a fixed frame 61 fixedly mounted on the main clamping seat 534, a rolling plate 62 is rotatably mounted on the fixed frame 61, a steering gear 63 is mounted on the rolling plate 62, a limiting slide 64 is laterally slidably connected to the fixed frame 61, a steering rack 65 meshing with the steering gear 63 is fixedly mounted on the limiting slide 64, a driving rod 66 is fixedly mounted on the limiting slide 64, a power rotating rod 67 is rotatably mounted on the steering bracket 532, and the power rotating rod 67 is rotatably connected to the driving rod 66; the rolling plate 62 and the steering gear 63 are eccentrically connected.

[0045] When the main clamping seat 534 moves longitudinally to clamp the cable, the driving rod 66 installed on the main clamping seat 534 moves synchronously with it. When the driving rod 66 moves in the direction close to the cable, the two ends of the power rotating rod 67 connected between the driving rod 66 and the steering bracket 532 rotate, and the rotating power rotating rod 67 pushes the driving rod 66 to move in the direction close to the steering bracket 532, and moves synchronously with the limiting slide 64 fixed with the driving rod 66. The limiting slide 64 is connected to the fixed stand 61 and slides. The limiting slide 64 drives the steering rack 65 to move horizontally. The steering rack 65 is meshed and assembled with the steering gear 63, and the steering gear 63 is driven to rotate under the action of the meshing transmission. The rolling plate 62 on the steering gear 63 moves in the direction of pressing the insulating auxiliary clamping seat 5344, so that the insulating auxiliary clamping seat 5344 evenly applies a clamping force to the cable surface, keeping the multiple cables distributed in a horizontal row able to be stably clamped and limited above the protective cover 21, so that the cable surface can be cleaned more safely later.

[0046] See also Figure 1-Figure 3 As shown, a cylinder 511 is fixedly installed on the protection frame body 1, a positioning seat 512 is fixedly installed on the lifting end of the cylinder 511, a positioning support rod 513 is rotatably installed on the positioning seat 512, and the positioning support rod 513 is rotatably assembled with the sliding seat 51.

[0047] After the two sides of the cable are firmly clamped by the support assembly 53, the operating cylinder 511 pushes the positioning seat 512 to move up and down, and the two ends of the positioning support rod 513 connected between the positioning seat 512 and the slide 51 rotate. The rotating positioning support rod 513 pushes the slide 51 to slide horizontally on the protective frame 1. The two groups of slides 51 move in opposite directions, so that the two groups of support assemblies 53 move in opposite directions to stretch and tighten the cables, keeping the cable area to be cleaned stably distributed above the protective cover 21.

[0048] See also Figure 1-Figure 6 As shown, the dust cover 4 is provided with an air jet component for jet cleaning the surface of the power transmission line cable.

[0049] When it is necessary to clean the dust on the cable surface, the dust cover 4 is controlled to rotate to block between the clamped cable and the staff, and the dust on the cable surface is cleaned through the jet assembly. The cleaned dust is diffused and shielded by the dust cover 4 to reduce interference with the staff.

[0050] See also Figure 1-Figure 6 As shown, the jet assembly includes a jet 41 fixedly mounted on the dust cover 4, a jet main pipe 42 for controlling gas transmission is installed on the jet 41, and the jet main pipe 42 is fixedly mounted on the dust cover 4; a plurality of nozzles 43 are rotatably mounted on the jet main pipe 42 at equal intervals, a support 44 is fixedly mounted on the dust cover 4, and the nozzle 43 and the support 44 are rotatably assembled.

[0051] Gas is input into the jet main pipeline 42 through the jet machine 41, and the gas is sprayed out through the nozzle 43 to clean the dust on the cable surface. The dust cover 4 in the upright state is controlled to reciprocate within the moving angle range. The reciprocating dust cover 4 can drive the nozzle 43 to reciprocate synchronously. The nozzle 43 reciprocates up and down to expand the jet cleaning area, thereby improving the dust cleaning effect on the cable surface.

[0052] See also Figure 4-Figure 6 As shown, a bevel gear 431 is coaxially fixedly connected to the nozzle 43, a through slot 432 is provided on the dust cover 4, and the position of the through slot 432 corresponds to the position of the bevel gear 431; a fixing frame 433 is fixedly installed on the protective frame body 1, a vertical rod 434 is fixedly installed on the fixing frame 433, the vertical rod 434 is penetrated in the through slot 432, a conical gear ring 435 is fixedly installed on the vertical rod 434, and the conical gear ring 435 is meshed and assembled with the bevel gear 431.

[0053] When the dust cover 4 drives the nozzle 43 to rotate back and forth up and down, the bevel gear 431 coaxially connected below the nozzle 43 rotates in a circle corresponding to the side of the conical gear ring 435, and the bevel gear 431 rotates on itself while rotating in a circle. The rotation of the bevel gear 431 drives the nozzle 43 to rotate back and forth in the left and right directions. The multi-directional rotation of the nozzle 43 can expand the range of jet cleaning of the cable surface, effectively clean the dust on the cable surface, and the cleaned dust falls into the protective cover 21 to avoid falling to the ground below to form a safety hazard.

[0054] See also Figure 4-Figure 6 As shown, a mounting base 31 engaged with the lifter is fixedly mounted on the mounting frame 3 , a threaded pressure rod 32 is threadedly assembled on the mounting base 31 , and a mounting pressure plate 33 is fixedly mounted on the threaded pressure rod 32 .

[0055] When installing the protective frame 1 and the lifting bucket of the lifting frame, the installation socket 31 is engaged and installed at the edge of the lifting bucket on the lifting frame. The staff stands in the lifting bucket of the elevator and controls the threaded pressure rod 32 to rotate, pushing the installation pressure plate 33 to move toward the edge of the lifting bucket to quickly press the protective frame 1 and install it on the lifting bucket. The installation is convenient and fast.

[0056] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A protective device for cleaning a power transmission line, comprising a protective frame (1) arranged below the power transmission line, characterized in that: The protective device further comprises a protective cover (21) mounted on the protective frame (1), a protective net (22) mounted on the protective frame (1) and corresponding to the bottom of the protective cover (21), a mounting frame (3) fixed on the protective frame (1) to assist the protective frame (1) in mounting on the elevator, and a dust cover (4) rotatably mounted on the protective frame (1) to block and clean dust; a slide seat (51) is slidably mounted on the protective frame (1), a support frame (52) is fixedly mounted on the slide seat (51), and a support assembly (53) is provided on the support frame (52) for limiting a power transmission line cleaning area and preventing the cable from shaking during cleaning.

2. A protective device for cleaning power transmission lines according to claim 1, characterized in that: The support assembly (53) comprises a C-shaped seat (531) fixedly mounted on the support frame (52); a steering bracket (532) is rotatably mounted in the C-shaped seat (531); a sliding block (533) is longitudinally slidably mounted on the steering bracket (532); a main clamping seat (534) is fixedly mounted on the sliding block (533); the main clamping seat (534) is slidably mounted on the steering bracket (532); a bidirectional screw (535) is rotatably mounted in the steering bracket (532); an internally threaded moving block (536) is threadedly mounted on the bidirectional screw (535); and the internally threaded moving block (536) is fixedly mounted on the sliding block (533).

3. A protective device for cleaning power transmission lines according to claim 2, characterized in that: A convex disc (5341) is fixedly mounted on the main clamping seat (534), a guide rod (5342) is slidably connected to the convex disc (5341), a return spring (5343) is connected between the guide rod (5342) and the convex disc (5341), an insulating auxiliary clamping seat (5344) is fixedly mounted on the guide rod (5342), and the insulating auxiliary clamping seat (5344) is slidably mounted in the main clamping seat (534); the main clamping seat (534) is provided with a rolling mechanism (6) for evenly pushing the insulating auxiliary clamping seat (5344) downward to strengthen the clamping of the cable.

4. A protective device for cleaning power transmission lines according to claim 3, characterized in that: The rolling mechanism (6) comprises a fixed frame (61) fixedly mounted on the main clamping seat (534), a rolling disc (62) rotatably mounted on the fixed frame (61), a steering gear (63) mounted on the rolling disc (62), a limit slide (64) laterally slidably connected to the fixed frame (61), and a steering rack (65) meshingly assembled with the steering gear (63) fixedly mounted on the limit slide (64).

5. A protective device for cleaning power transmission lines according to claim 4, characterized in that: A driving rod (66) is fixedly mounted on the limiting slide (64), a power rotating rod (67) is rotatably mounted on the steering bracket (532), and the power rotating rod (67) is rotatably connected to the driving rod (66).

6. A protective device for cleaning power transmission lines according to claim 1, characterized in that: A cylinder (511) is fixedly mounted on the protection frame (1); a positioning seat (512) is fixedly mounted on the lifting end of the cylinder (511); a positioning support rod (513) is rotatably mounted on the positioning seat (512); and the positioning support rod (513) is rotatably assembled with the sliding seat (51).

7. A protective device for cleaning power transmission lines according to claim 1, characterized in that: The dust cover (4) is provided with an air jet component for jet cleaning the surface of the power transmission line cable.

8. A protective device for cleaning power transmission lines according to claim 7, characterized in that: The jet assembly comprises a jet (41) fixedly mounted on the dust cover (4), a jet main pipeline (42) for controlling gas transmission being mounted on the jet (41), and the jet main pipeline (42) being fixedly mounted on the dust cover (4); A plurality of nozzles (43) are rotatably mounted on the jet main pipe (42) at equal intervals, a support (44) is fixedly mounted on the dust cover (4), and the nozzles (43) and the support (44) are rotatably assembled.

9. A protective device for cleaning power transmission lines according to claim 8, characterized in that: A bevel gear (431) is coaxially fixedly connected to the nozzle (43), a through slot (432) is provided on the dust cover (4), and the position of the through slot (432) corresponds to the position of the bevel gear (431); A fixing frame (433) is fixedly mounted on the protection frame body (1), a vertical rod (434) is fixedly mounted on the fixing frame (433), the vertical rod (434) is arranged to penetrate the through groove (432), a conical gear ring (435) is fixedly mounted on the vertical rod (434), and the conical gear ring (435) is meshedly assembled with the bevel gear (431).

10. A protective device for cleaning power transmission lines according to claim 1, characterized in that: The mounting frame (3) is fixedly mounted with a mounting base (31) that is engaged with the elevator, the mounting base (31) is threadedly mounted with a threaded pressure rod (32), and the threaded pressure rod (32) is fixedly mounted with a mounting pressure plate (33).

Images