A connection device for adjusting the slack of a transmission line

Abstract

The present invention discloses a connection device for adjusting the slack of a power transmission line, comprising a power pole, a mounting bracket fixedly connected to the outer surface of the power pole, a cable line arranged on the top of the mounting bracket, an adjustment device arranged on one side of the top of the mounting bracket, a deicing device fixedly connected to one side of the adjustment device, and the above scheme adjusts the intervals between the adjustment devices at both ends of the top of the adjustment frame so that the device can adapt to the design requirements of different types of power transmission lines and improve the adaptability of the device; the movable frame will move in the opposite direction toward one side of the deicing device to reduce the bending degree of the cable line, thereby achieving the slack of the cable line, realizing automatic adjustment, reducing manual adjustment, and making the adjustment of the device more convenient; the cable line vibrates, thereby causing ice and snow on the surface to fall off, realizing automatic cleaning of ice and snow, and avoiding the accumulation of ice and snow, which causes the slack of the cable line to be too large or too small, affecting the adjustment of the adjustment device and the service life of the cable line.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission line regulation, and more particularly to a connection device for slack regulation of power transmission lines. Background Art

[0002] The transmission line is a very important part of the power system. It is responsible for transmitting the electricity generated by the power plant to the user end. The transmission line uses a transformer to step up the voltage of the electric energy generated by the generator, and then connects it to the transmission line through control equipment such as circuit breakers. It is usually composed of metal wires (such as aluminum alloy, copper, etc.) and is installed in a single or double circuit. The wires are connected to the towers through insulators, and the towers are fixed to the ground. It plays a key role in power transmission.

[0003] Since overhead transmission lines are installed in the air, the suspended parts of the cables will fall under the action of gravity. In addition, since the transmission lines are set up outdoors for a long time, they are particularly affected by the thermal expansion and contraction of the temperature. The relatively loose transmission lines are affected by various severe weather such as strong winds, thunderstorms, hail, and ice, and are easily damaged by factors such as shaking. If they are too tight, they will be easily broken due to factors such as snow accumulation and ice coverage, which not only poses a major safety hazard, but also brings economic losses. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a connection device for adjusting the slack of a transmission line, which can adapt to the design requirements of different types of transmission lines, improve the adaptability of the device, realize the slack of the cable, realize automatic adjustment, reduce manual adjustment, make the adjustment of the device more convenient, and realize automatic clearing of ice and snow to avoid the accumulation of ice and snow, which will cause the slack of the cable to be too large or too small, affecting the adjustment of the adjustment device and the service life of the cable, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a connection device for adjusting the slack of a power transmission line, comprising a power pole, a mounting bracket is fixedly connected to the outer surface of the power pole, a cable is arranged on the top of the mounting bracket, an adjustment device is arranged on one side of the top of the mounting bracket, and a deicing device is fixedly connected to one side of the adjustment device;

[0006] The mounting bracket comprises a mounting piece, one side of the mounting piece is fixedly connected to an angle steel, a plurality of insulators are arranged on the top of the angle steel, the top of the insulators are connected to the cable, and a side of the mounting piece away from the angle steel is fixedly connected to an adjustment frame;

[0007] The adjustment frame includes fixed steel, a movable opening is opened in the middle of the fixed steel, sliding grooves are opened at both ends of the top of the fixed steel, two-way screws are rotatably installed at both ends of the interior of the fixed steel, a hexagonal head is fixedly connected to one side of the two-way screw, the hexagonal head is rotatably installed inside the movable opening, sliding blocks are threadedly connected to the outer surfaces of both ends of the two-way screw, a fixed rail is fixedly connected to the bottom surface of the fixed steel, a socket block is slidably installed on the outer surface of the fixed rail, the top of the socket block is fixedly connected to the bottom of the sliding block, and the sliding block is slidably installed inside the fixed steel.

[0008] In a preferred embodiment, the adjusting device includes an adjusting steel frame, one end of the bottom of the adjusting steel frame is fixedly connected to a connecting slider, the connecting slider is fixedly connected to the top of the sliding block, the connecting slider is slidably installed inside the sliding groove, one side of the adjusting steel frame is fixedly connected to a supporting frame, and a positioning roller is rotatably installed on the top of the supporting frame.

[0009] In a preferred embodiment, one end of the adjusting steel frame is fixedly connected to an adjusting motor, one side of the adjusting motor is fixedly connected to a rotating screw, the rotating screw is rotatably installed inside the adjusting steel frame, a moving groove is opened on the top of the adjusting steel frame, a moving block is threadedly connected to the outer surface of the rotating screw, a moving frame is fixedly connected to the top of the moving block, the moving frame is slidably installed inside the moving groove, and a moving roller is rotatably installed on the top of the moving frame.

[0010] In a preferred embodiment, the cables are movably sleeved on the outer surfaces of the positioning roller and the movable roller, respectively, and the cables are staggered and wound around the outer surfaces of the positioning roller and the movable roller, respectively.

[0011] In a preferred embodiment, the de-icing device includes a fixing frame, which is fixedly mounted on one end of the top of the adjusting device, a sleeve hole is opened at the lower end inside the fixing frame, and a support roller is rotatably mounted below the sleeve hole inside the fixing frame, and a pressure sensor is arranged at the bottom of the support roller.

[0012] In a preferred embodiment, the cable is movably sleeved in a sleeve hole of the fixing frame, and the cable is movably sleeved on an outer surface of the supporting roller.

[0013] In a preferred embodiment, the top of the fixed frame is fixedly connected to a top block, one side of the top of the fixed frame is fixedly connected to an impact motor, one side of the impact motor is provided with a movable cam, the other side of the upper end of the fixed frame is fixedly connected to a limiting frame, the internal movable sleeve of the limiting frame is provided with a lifting rod, the bottom of the lifting rod is fixedly connected to an impact wheel, and the impact wheel is located at the top of the cable.

[0014] In a preferred embodiment, a fixed sleeve block is fixedly sleeved on the outer surface of the lower end of the lifting rod, a return spring is movably sleeved on the outer surface of the lifting rod, the return spring is located between the fixed sleeve block and the limit frame, the top of the lifting rod is fixedly connected to a connecting plate, the bottom of one side of the connecting plate is fixedly connected to an extrusion rod, and a ball is rotatably installed on the bottom of the extrusion rod.

[0015] In a preferred embodiment, the extrusion rod is movably sleeved inside the top block, the connecting plate is located on the top of the top block, the movable cam has a "6" shape, and the ball is rotatably mounted on the outer surface of the movable cam.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention sets a bidirectional screw and a sliding block. During installation, according to the design and requirements of the transmission line (on a transmission line, the spacing of the transmission lines is usually determined according to factors such as voltage level, load requirements, and terrain conditions), the hexagonal head is rotated by a wrench to rotate the bidirectional screw, thereby causing the sliding blocks at both ends to move toward or in opposite directions inside the fixed steel, thereby adjusting the spacing of the adjustment devices at both ends of the top of the adjustment frame, so that the device can adapt to the design requirements of different types of transmission lines, thereby improving the adaptability of the device.

[0018] 2. The cable of the present invention droops above the supporting roller. When the cable is in a relatively loose state, the cable droops due to gravity. When the pressure sensor reaches a certain threshold, it will move to the side away from the de-icing device through the moving frame, so that the moving roller pulls a part of the cable to slide on the top of the adjusting steel frame and forms a curve between the positioning roller, thereby tightening the cable and supporting the cable to reduce the gravity of the cable on the supporting roller. At the same time, when the pressure sensor senses that the pressure on the top of the supporting roller is too small, the moving frame will move in the opposite direction to the side of the de-icing device to reduce the degree of bending of the cable, thereby achieving relaxation of the cable, realizing automatic adjustment, reducing manual adjustment, and making the device adjustment more convenient.

[0019] 3. The lifting rod of the present invention rises inside the top block, and while the fixed sleeve block rises, the reset spring is squeezed to make the impact wheel rise on the top of the cable line, and the reset spring is reset by the rotation of the movable cam, the impact wheel descends, and impacts the upper part of the suspended cable line, causing the cable line to vibrate, thereby causing ice and snow on the surface to fall off, realizing automatic cleaning of ice and snow, avoiding the accumulation of ice and snow, resulting in excessive or insufficient slack of the cable line, affecting the adjustment of the adjustment device, and also affecting the service life of the cable line. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the mounting bracket structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the adjustment frame of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the regulating device of the present invention.

[0024] Figure 5 It is a schematic diagram of the internal structure of the regulating device of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the deicing device of the present invention.

[0026] Figure 7 It is a schematic diagram of the structure of location A of the present invention.

[0027] The accompanying drawings are marked as follows: 1. electric pole; 2. mounting bracket; 3. cable line; 4. adjusting device; 5. deicing device; 21. mounting piece; 22. angle steel; 23. insulator; 24. adjusting frame; 241. fixing steel; 242. sliding groove; 243. movable opening; 244. hexagonal head; 245. bidirectional screw; 246. fixing rail; 247. sliding block; 248. socket block; 41. adjusting steel frame; 42. supporting frame; 43. positioning roller; 44. Moving groove; 45. Moving frame; 46. Moving roller; 47. Adjusting motor; 48. Rotating screw; 49. Connecting slider; 51. Fixed frame; 52. Supporting roller; 53. Pressure sensor; 54. Limiting frame; 55. Lifting rod; 56. Impact wheel; 57. Fixed sleeve block; 58. Impact motor; 59. Top block; 510. Connecting plate; 511. Extrusion rod; 512. Ball bearing; 513. Movable cam; 514. Reset spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] First embodiment

[0030] As attached Figure 1-3As one embodiment of the present invention, a bidirectional screw 245 and a sliding block 247 are provided. During installation, according to the design and requirements of the transmission line, the spacing of the transmission lines is usually determined based on factors such as voltage level, load requirements, and terrain conditions on a transmission line. The bidirectional screw 245 is rotated by a wrench, so that the sliding blocks 247 at both ends move toward or in opposite directions inside the fixed steel 241, thereby adjusting the spacing of the adjustment devices 4 at both ends of the top of the adjustment frame 24, so that the device can adapt to the design requirements of different types of transmission lines, thereby improving the adaptability of the device.

[0031] A connection device for adjusting the slack of a power transmission line comprises a power pole 1, a mounting bracket 2 is fixedly connected to the outer surface of the power pole 1, a cable 3 is arranged on the top of the mounting bracket 2, an adjustment device 4 is arranged on one side of the top of the mounting bracket 2, and a deicing device 5 is fixedly connected to one side of the adjustment device 4;

[0032] The mounting bracket 2 includes a mounting member 21, one side of the mounting member 21 is fixedly connected to an angle steel 22, a plurality of insulators 23 are arranged on the top of the angle steel 22, the top of the insulator 23 is connected to the cable 3, and the side of the mounting member 21 away from the angle steel 22 is fixedly connected to an adjustment frame 24

[0033] The insulator 23 is arranged at one end of the mounting member 21, and the adjustment frame 24 is arranged at the other end of the mounting member 21, so that there is a large space on both sides of the cable 3, so as to avoid the adjustment device 4 being restricted by the cable 3 and being unable to adjust the distance inside the adjustment frame 24;

[0034] The adjusting frame 24 includes a fixed steel 241, a movable opening 243 is opened in the middle of the fixed steel 241, sliding grooves 242 are opened at both ends of the top of the fixed steel 241, and two-way screws 245 are rotatably installed at both ends inside the fixed steel 241. A hexagonal head 244 is fixedly connected to one side of the two-way screw 245, and the hexagonal head 244 is rotatably installed inside the movable opening 243. The outer surfaces of both ends of the two-way screw 245 are threadedly connected with sliding blocks 247, and the bottom surface of the fixed steel 241 is fixedly connected with a fixed rail 246, and the outer surface of the fixed rail 246 is slidably installed with a socket block 248, the top of the socket block 248 is fixedly connected to the bottom of the sliding block 247, and the sliding block 247 is slidably installed inside the fixed steel 241.

[0035] Second embodiment

[0036] As attached Figure 1-5As an embodiment of the present invention, the cable 3 sags above the support roller 52. When the cable 3 is in a relatively loose state, the cable 3 sags due to gravity. When the pressure sensor 53 reaches a certain threshold, it will move to the side away from the de-icing device 5 through the movable frame 45, so that the movable roller 46 pulls a part of the cable 3 to slide on the top of the adjustment steel frame 41 and forms a bend between the positioning roller 43, thereby tightening the cable 3 and supporting the cable 3, so that the gravity of the cable 3 on the support roller 52 is reduced. At the same time, when the pressure sensor 53 senses that the pressure on the top of the support roller 52 is too small, the movable frame 45 will move in the opposite direction to the side of the de-icing device 5, so that the degree of bending of the cable 3 is reduced, thereby achieving relaxation of the cable 3, realizing automatic adjustment, reducing manual adjustment, and making the device adjustment more convenient.

[0037] The second embodiment is further optimized relative to the first embodiment in that the adjusting device 4 includes an adjusting steel frame 41, one end of the bottom of the adjusting steel frame 41 is fixedly connected with a connecting slider 49, the connecting slider 49 is fixedly connected to the top of the sliding block 247, the connecting slider 49 is slidably installed inside the sliding groove 242, one side of the adjusting steel frame 41 is fixedly connected with a supporting frame 42, and a positioning roller 43 is rotatably installed on the top of the supporting frame 42.

[0038] Among them, one end of the adjusting steel frame 41 is fixedly connected to an adjusting motor 47, one side of the adjusting motor 47 is fixedly connected to a rotating screw 48, the rotating screw 48 is rotatably installed inside the adjusting steel frame 41, a moving groove 44 is opened on the top of the adjusting steel frame 41, a moving block is threadedly connected to the outer surface of the rotating screw 48, a moving frame 45 is fixedly connected to the top of the moving block, the moving frame 45 is slidably installed inside the moving groove 44, and a moving roller 46 is rotatably installed on the top of the moving frame 45.

[0039] Among them, the cable 3 is movably connected to the outer surfaces of the positioning roller 43 and the movable roller 46, and the cable 3 is staggered and wound around the outer surfaces of the positioning roller 43 and the movable roller 46. During the movement of the movable frame 45, the positioning roller 43 and the movable roller 46 respectively support the two sides of the cable 3. During the pulling of the cable 3, the cable 3 is bent and tightened, thereby adjusting the slack and sag of the cable 3 to avoid damage or breakage of the cable 3, which would reduce the service life of the cable 3.

[0040] Third embodiment

[0041] As attached Figure 1-7This is an embodiment of the present invention. When the surface of the cable 3 is covered with ice or snow, the impact motor 58 is started to rotate the movable cam 513 and push the extrusion rod 511 to make the lifting rod 55 rise inside the top block 59. While the fixed sleeve block 57 rises, the reset spring 514 is squeezed to make the impact wheel 56 rise at the top of the cable 3. The reset spring 514 is reset by the rotation of the movable cam 513. The impact wheel 56 descends and impacts the upper part of the suspended cable 3, causing the cable 3 to vibrate, thereby shaking off the ice and snow on the surface, realizing automatic cleaning of ice and snow, and avoiding the accumulation of ice and snow, which causes the cable 3 to be too loose or too small, affecting the adjustment of the adjustment device 4, and also affecting the service life of the cable 3.

[0042] The third embodiment is further optimized relative to the second embodiment in that the de-icing device 5 includes a fixing frame 51, which is fixedly mounted on one end of the top of the adjusting device 4, a sleeve hole is provided at the lower end inside the fixing frame 51, and a supporting roller 52 is rotatably mounted inside the fixing frame 51 below the sleeve hole, and a pressure sensor 53 is provided at the bottom of the supporting roller 52.

[0043] The cable 3 is movably sleeved in the sleeve hole of the fixing frame 51 , and the cable 3 is movably sleeved on the outer surface of the supporting roller 52 .

[0044] Among them, the top of the fixed frame 51 is fixedly connected with a top block 59, one side of the top of the fixed frame 51 is fixedly connected with an impact motor 58, one side of the impact motor 58 is provided with a movable cam 513, the other side of the upper end of the fixed frame 51 is fixedly connected with a limiting frame 54, the internal movable sleeve of the limiting frame 54 is connected with a lifting rod 55, the bottom of the lifting rod 55 is fixedly connected with an impact wheel 56, and the impact wheel 56 is located at the top of the cable 3.

[0045] Among them, the outer surface of the lower end of the lifting rod 55 is fixedly sleeved with a fixed sleeve block 57, and the outer surface of the lifting rod 55 is movably sleeved with a return spring 514, the return spring 514 is located between the fixed sleeve block 57 and the limit frame 54, the top of the lifting rod 55 is fixedly connected to a connecting plate 510, the bottom of one side of the connecting plate 510 is fixedly connected to an extrusion rod 511, and the bottom of the extrusion rod 511 is rotatably installed with a ball 512.

[0046] Among them, the squeezing rod 511 is movably sleeved inside the top block 59, the connecting plate 510 is located at the top of the top block 59, the movable cam 513 has a "6" shape, and the ball 512 is rotatably installed on the outer surface of the movable cam 513. By setting the shape of the movable cam 513 to be "6", when the movable cam 513 rotates, it will gradually push the squeezing rod 511 and the ball 512 at the bottom to move upward. When it reaches one side of the movable cam 513, due to the influence of the shape of the movable cam 513, the squeezing rod 511 loses its supporting force, and under the action of the reset spring 514, the reset spring 514 pushes the fixed sleeve block 57 to descend, and the fixed sleeve block 57 drives the lifting rod 55 to descend, and the impact wheel 56 hits the top of the cable 3, causing the cable 3 to vibrate, and shake off the ice and snow on the top of the cable 3.

[0047] Working principle of the present invention: During installation, according to the design and requirements of the power transmission line, the hexagonal head 244 is rotated by a wrench to rotate the bidirectional screw 245, thereby causing the sliding blocks 247 at both ends to move toward or in the opposite direction inside the fixed steel 241, and the sliding blocks 247 drive the adjustment steel frame 41 to move, thereby adjusting the interval between the adjustment devices 4 at both ends of the top of the adjustment frame 24;

[0048] Subsequently, the cable 3 is passed through the outer surface of the positioning roller 43 and one side of the moving roller 46, and the cable 3 droops above the supporting roller 52. When the cable 3 is in a relatively relaxed state, the cable 3 droops due to gravity. When the pressure sensor 53 reaches a certain threshold, it will be moved to the side away from the de-icing device 5 through the moving frame 45, so that the moving roller 46 pulls a part of the cable 3 to slide on the top of the adjusting steel frame 41 and forms a bend with the positioning roller 43, thereby achieving the tightening of the cable 3 and supporting the cable 3, so that the gravity of the cable 3 on the supporting roller 52 is reduced. At the same time, when the pressure sensor 53 senses that the pressure on the top of the supporting roller 52 is too small, the moving frame 45 will move in the opposite direction to one side of the de-icing device 5, so that the bending degree of the cable 3 is reduced, thereby achieving the relaxation of the cable 3.

[0049] When the surface of the cable 3 is covered with ice or snow, the impact motor 58 is started to rotate the movable cam 513 and push the extrusion rod 511 to make the lifting rod 55 rise inside the top block 59. While the fixed sleeve block 57 rises, the reset spring 514 is squeezed to make the impact wheel 56 rise on the top of the cable 3. The reset spring 514 is reset by the rotation of the movable cam 513, and the impact wheel 56 descends and impacts the upper part of the suspended cable 3, causing the cable 3 to vibrate, thereby shaking off the ice and snow on the surface, realizing automatic cleaning of ice and snow, and avoiding the accumulation of ice and snow, which causes the cable 3 to be too loose or too small, affecting the adjustment of the adjustment device 4, and also affecting the service life of the cable 3.

[0050] Finally, a few points should be explained: the drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection device for adjusting the slack of a power transmission line, comprising a power pole (1), a mounting bracket (2) being fixedly connected to the outer surface of the power pole (1), a cable (3) being arranged on the top of the mounting bracket (2), characterized in that: An adjustment device (4) is provided on one side of the top of the mounting bracket (2), and a deicing device (5) is fixedly connected to one side of the adjustment device (4); The mounting bracket (2) comprises a mounting member (21), one side of the mounting member (21) is fixedly connected to an angle steel (22), a plurality of insulators (23) are arranged on the top of the angle steel (22), the tops of the insulators (23) are connected to the cables (3), and a side of the mounting member (21) away from the angle steel (22) is fixedly connected to an adjustment frame (24); The adjustment frame (24) comprises a fixed steel (241), a movable opening (243) is provided in the middle of the fixed steel (241), sliding grooves (242) are provided at both ends of the top of the fixed steel (241), bidirectional screws (245) are rotatably mounted at both ends of the interior of the fixed steel (241), a hexagonal head (244) is fixedly connected to one side of the bidirectional screw (245), the hexagonal head (244) is rotatably mounted inside the movable opening (243), and the outer surfaces of both ends of the bidirectional screw (245) are threadedly connected to sliding grooves (242). The fixing steel (241) has a bottom surface fixedly connected to a fixing rail (246), an outer surface of the fixing rail (246) is slidably mounted with a sleeve block (248), a top of the sleeve block (248) is fixedly connected to a bottom of a sliding block (247), and the sliding block (247) is slidably mounted inside the fixing steel (241); the adjusting device (4) comprises an adjusting steel frame (41), one end of the bottom of the adjusting steel frame (41) is fixedly connected to a connecting slide block (49), and the connecting slide block (49) is slidably mounted to the sliding block (247). The top of the movable block (247) is fixedly connected, the connecting slider (49) is slidably installed in the sliding groove (242), one side of the adjusting steel frame (41) is fixedly connected to the supporting frame (42), and the top of the supporting frame (42) is rotatably installed with a positioning roller (43); one end of the adjusting steel frame (41) is fixedly connected to the adjusting motor (47), one side of the adjusting motor (47) is fixedly connected to a rotating screw (48), and the rotating screw (48) is rotatably installed in the adjusting steel frame (41), and the adjusting steel frame ( A moving groove (44) is provided on the top of the rotating screw (48), a moving block is threadedly connected to the outer surface of the rotating screw (48), a moving frame (45) is fixedly connected to the top of the moving block, the moving frame (45) is slidably installed inside the moving groove (44), and a moving roller (46) is rotatably installed on the top of the moving frame (45); the cable (3) is movably sleeved on the outer surfaces of the positioning roller (43) and the moving roller (46), and the cable (3) is staggered and wound around the outer surfaces of the positioning roller (43) and the moving roller (46).

2. A connection device for adjusting the slack of a power transmission line according to claim 1, characterized in that: The deicing device (5) comprises a fixing frame (51), the fixing frame (51) being fixedly mounted on one end of the top of the adjusting device (4), a sleeve hole being provided at the lower end inside the fixing frame (51), and a supporting roller (52) being rotatably mounted inside the fixing frame (51) below the sleeve hole, and a pressure sensor (53) being provided at the bottom of the supporting roller (52).

3. A connection device for adjusting the slack of a power transmission line according to claim 2, characterized in that: The cable (3) is movably sleeved in a sleeve hole of the fixing frame (51), and the cable (3) is movably sleeved on an outer surface of the supporting roller (52).

4. A connection device for adjusting the slack of a power transmission line according to claim 3, characterized in that: The top of the fixed frame (51) is fixedly connected to a top block (59), one side of the top of the fixed frame (51) is fixedly connected to an impact motor (58), one side of the impact motor (58) is provided with a movable cam (513), the other side of the upper end of the fixed frame (51) is fixedly connected to a limit frame (54), the inner part of the limit frame (54) is movably sleeved with a lifting rod (55), the bottom of the lifting rod (55) is fixedly connected to an impact wheel (56), and the impact wheel (56) is located at the top of the cable (3).

5. A connection device for adjusting the slack of a power transmission line according to claim 4, characterized in that: A fixed sleeve block (57) is fixedly sleeved on the outer surface of the lower end of the lifting rod (55); a return spring (514) is movably sleeved on the outer surface of the lifting rod (55); the return spring (514) is located between the fixed sleeve block (57) and the limit frame (54); a connecting plate (510) is fixedly connected to the top of the lifting rod (55); an extrusion rod (511) is fixedly connected to the bottom of one side of the connecting plate (510); and a ball (512) is rotatably mounted on the bottom of the extrusion rod (511).

6. A connection device for adjusting the slack of a power transmission line according to claim 5, characterized in that: The extrusion rod (511) is movably sleeved inside the top block (59), the connection plate (510) is located at the top of the top block (59), the movable cam (513) has a "6" shape, and the ball (512) is rotatably mounted on the outer surface of the movable cam (513).

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