A device for replacing jumper insulator strings of transmission lines

Abstract

The present invention discloses a device for replacing a jumper insulator string for a power transmission line, and specifically relates to a technical field related to the device for replacing an insulator string, including a support block, one end of the support block is provided with a first connection block for maintaining the device in a horizontal state, a J-shaped groove is provided on the upper end of the first connection block close to the support block, a slide plate is provided inside the J-shaped groove, the upper end of the slide plate extends to the outside of the first connection block and is provided with a magnet plate for adsorbing the cross arm of the tower, a second movable groove is provided on the top wall of the J-shaped groove away from the support block, and an L-shaped connection plate extending to the outside of the first connection block is provided inside the second movable groove. The device for replacing a jumper insulator string for a power transmission line described in the present invention, after replacing an insulator string, uses the rollers on the slide plate and the magnet plate to roll on the cross arm to drive the device to move left and right, thereby reducing the time for re-fixing, and thus improving the replacement efficiency of the insulator string.

Description

Technical Field

[0001] The present invention relates to the technical field related to insulator string replacement devices, and in particular to a transmission line jumper insulator string replacement device. Background Art

[0002] An insulator string refers to two or more insulator elements combined together. It is an important component of the transmission line. Due to environmental pollution, the internal dielectric insulation level is reduced, or the insulation of the conductor to the pole and tower is reduced due to lightning strikes on the insulator, resulting in a line grounding fault and a line power outage. Therefore, the insulator needs to be replaced.

[0003] When replacing an insulator string, workers need to carry multiple items such as a wire clamp, a wire tensioner, and a rope, which may cause the following problems:

[0004] 1. Connect the crossarm on the tower with a rope, and then use the tensioner and the clamp to tighten the insulated wire to remove the insulator string. However, when removing the second insulator string, the rope needs to be removed from the crossarm and re-fixed, which reduces the replacement efficiency of the insulator string.

[0005] 2. During and after the removal of the insulator string, the staff is required to hold the insulator string at all times to prevent the insulator string from falling. However, this can easily increase the labor intensity of the staff, causing arm pain and endangering their health. Summary of the invention

[0006] The main purpose of the present invention is to provide a transmission line jumper insulator string replacement device, which can effectively solve the problems of reduced efficiency in replacing insulator strings and arm pain caused by workers carrying insulator strings for a long time.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A device for replacing a jumper insulator string of a power transmission line comprises a support block, one end of the support block is provided with a first connecting block for keeping the device in a horizontal state, a J-shaped groove is provided on a side of the upper end of the first connecting block close to the support block, a slide is provided inside the J-shaped groove, the upper end of the slide extends to the outside of the first connecting block and is provided with a magnet plate for adsorbing a cross arm of an electric tower, a second open groove is provided on the upper part of the slide plate, a roller is rotatably connected inside the second open groove, a second movable groove is provided on the top wall of the J-shaped groove on a side away from the support block, a second receiving groove is provided on the inner wall of the second movable groove on a side away from the slide plate, an air bag communicating with the second movable groove is provided at the lower end of the slide plate, and the first The interior of the two movable grooves is provided with an L-shaped connecting plate extending to the outside of the first connecting block, and the vertical part of the L-shaped connecting plate is provided with a plurality of first plug-in grooves penetrating the side walls on both sides thereof, and one of the first plug-in grooves and the interior of the second receiving groove are jointly provided with a grinding plate for fixing the L-shaped connecting plate, and the end of the grinding plate away from the slide plate is provided with a plug-in rod, and the end of the plug-in rod away from the grinding plate extends to the outside of the first connecting block and is provided with a pull ring, and the interior of the support block is provided with a T-shaped slot penetrating one side outer wall thereof, and the interior of the T-shaped slot is provided with a T-shaped movable rod extending to the outside of the support block, and the end of the T-shaped movable rod away from the support block is provided with a second connecting block, and the upper end of the second connecting block is provided with a clamping mechanism for fixing the insulated wire.

[0009] Preferably, the clamping mechanism includes an L-shaped fixing plate and a bottom plate fixedly connected to the upper end of the second connecting block, two ladder-shaped grooves are provided at one end of the vertical part of the L-shaped fixing plate close to the bottom plate, and two ladder-shaped blocks slidably connected to the inside of the ladder-shaped grooves are provided at the front end of the bottom plate.

[0010] Preferably, the lower end of the horizontal portion of the L-shaped fixing plate is an inclined surface structure that is higher in the front and lower in the back.

[0011] Preferably, a plurality of pressing plates are provided at the lower end of the horizontal part of the L-shaped fixing plate, and the lower ends of the plurality of pressing plates are located at the same horizontal height, and the distance between the lower end of the pressing plate and the upper end of the base plate is greater than the distance between the lower end of the L-shaped fixing plate and the upper end of the base plate.

[0012] Preferably, the left and right outer end walls of the L-shaped fixed plate are each provided with a second connecting rod, the left and right outer end walls of the bottom plate are each provided with a slide groove, the first connecting rod is slidably arranged inside the two slide grooves, the outer surfaces of the first connecting rod and the second connecting rod located on the same side are rotatably connected together with a rotating plate for pulling and moving, the outer surface of the first connecting rod is provided with a movable plate, and the end of the movable plate away from the first connecting rod is provided with an extrusion plate for fixing the insulated wire.

[0013] Preferably, a pull rope is provided at the lower end of the vertical part of the L-shaped fixing plate, a plurality of second plug-in grooves are evenly opened at the front end of the second connecting block, a second rotating rod 42 is provided at the front end of the second connecting block and the second rotating rod is located in the middle position of the plurality of second plug-in grooves, a part of the pull rope away from the L-shaped fixing plate is wrapped around the outer surface of the second rotating rod, a baffle is provided on the outer surface of the second rotating rod in front of the pull rope, an adapter plate is provided at one end of the second rotating rod away from the second connecting block, a sliding rod passing through the front and rear ends of the adapter plate is provided at a part of the adapter plate away from the second rotating rod, and a grinding block is provided at one end of the sliding rod close to the second connecting block and slidably connected to the inside of the second plug-in groove.

[0014] Preferably, a first open slot is provided in the middle of one end of the horizontal part of the T-shaped moving rod, and a groove is provided on the inner walls of the first open slot except the front inner wall, and a second rack is fixedly installed on the bottom wall of the groove, and a first rotating rod extending to the T-slot and the inside of the groove is provided on the outer wall of the support block on one side close to the T-shaped moving rod, a first rotating rod meshing with the second rack is provided on a portion of the outer surface of the first rotating rod located inside the groove, and a turntable is provided on the end of the first rotating rod away from the first rack.

[0015] Preferably, a first movable groove is provided in the middle of the top wall of the T-shaped groove, a first receiving groove is provided on the top wall of the first movable groove and passes through the front and rear ends of the support block, and two support plates for supporting the insulator string are provided inside the first receiving groove.

[0016] Preferably, a triangular plate is provided at the upper end of the vertical portion of the T-shaped moving rod, and the upper portion of the triangular plate passes through the first moving groove and extends to the interior of the first receiving groove.

[0017] Preferably, the sum of the lengths of the triangular plate and the support plate is equal to the length of the first movable groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention arranges an L-shaped connecting plate and a sliding plate on the first connecting block, so that the sliding plate moves upward as the L-shaped connecting plate and the first connecting block are constantly approached, and then the opening of the L-shaped connecting plate is blocked by the mutual adsorption of the magnet plate and the cross arm of the tower, so that the device is fixed on the cross arm. After replacing an insulator string, the device is moved by rolling the roller on the cross arm, thereby reducing the time for re-fixing and improving the replacement efficiency of the insulator string.

[0020] 2. The present invention arranges structures such as support plates on the support blocks, so that the support plates expand outward as the T-shaped moving rod goes deeper, thereby expanding the horizontal area of ​​the support blocks to support the insulator strings, making it convenient for workers to take a break, thereby reducing the labor intensity of the workers, alleviating arm pain, and protecting their health. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 is a cross-sectional view of the first connecting block of the present invention;

[0023] Figure 3 for Figure 2 A magnified view of point B;

[0024] Figure 4 for Figure 2 Another perspective structural diagram of;

[0025] Figure 5 It is a schematic diagram of the connection structure between the second connection block and the clamping mechanism of the present invention; Figure 6 for Figure 1 A magnified image of point A;

[0026] Figure 7 It is a schematic diagram of the overall structure of the bottom plate of the present invention; Figure 8 It is the working state diagram of the present invention;

[0027] Fig. 9 for Figure 8 Enlarged view of point C;

[0028] Fig.10 It is a schematic diagram of the overall structure of the T-shaped moving rod of the present invention; Fig.11 is a side sectional view of the support block of the present invention;

[0029] Fig.12 It is a cross-sectional view of the working state of the support block of the present invention.

[0030] In the figure: 1, support block; 11, turntable; 12, first rotating rod; 13, first rack; 14, T-slot; 15, first receiving slot; 16, support plate; 17, first moving slot; 2, T-shaped moving rod; 21, triangle plate; 22, first opening slot; 221, groove; 23, second rack; 3, first connecting block; 31, second moving slot; 32, L-shaped connecting plate; 321, first plug-in slot; 322, grinding plate; 323, plug-in rod; 324, pull ring; 33, J-slot; 34, airbag; 35, slide plate; 36, magnetic Iron plate; 361, second opening groove; 362, roller; 37, second receiving groove; 4, second connecting block; 41, second plug-in groove; 42, second rotating rod; 43, baffle; 44, adapter plate; 45, slide rod; 451, grinding block; 5, clamping mechanism; 51, bottom plate; 511, slide groove; 512, first connecting rod; 513, moving plate; 514, squeezing plate; 515, ladder block; 52, L-shaped fixing plate; 521, second connecting rod; 522, rotating plate; 523, pressing plate; 524, pull rope; 525, ladder groove. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Example

[0032] like Figure 1-4 As shown, a transmission line jumper insulator string replacement device includes a support block 1, one end of the support block 1 is provided with a first connecting block 3 for keeping the device in a horizontal state, the first connecting block 3 is vertically connected to the support block 1, so that the entire replacement device remains in a horizontal state, thereby facilitating the disassembled insulator string to be placed on the support block 1, so that the staff can relax slightly, and the height of the first connecting block 3 is greater than the height of the support block 1 to avoid mutual influence between the insulator string and the replacement device.

[0033] For details, please refer to Figure 2-4A J-shaped groove 33 is provided on one side of the upper end of the first connecting block 3 close to the supporting block 1, and each corner side of the J-shaped groove 33 is an arc-shaped side to avoid damage to the inflated airbag 34. A slide plate 35 is provided inside the J-shaped groove 33, and the upper end of the slide plate 35 extends to the outer side of the first connecting block 3 and is provided with a magnet plate 36 for adsorbing the cross arm of the power tower. When the slide plate 35 moves up to a certain height, the magnet plate 36 will be adsorbed on the cross arm, thereby blocking the left side of the L-shaped connecting plate 32 to prevent the L-shaped connecting plate 32 from being separated from the cross arm during the replacement of the insulator string. A second open groove 361 is provided on the upper part of the slide plate 35 that passes through the upper end of the magnet plate 36, and a roller 362 is rotatably connected inside the second open groove 361. When an insulator string is replaced, the fixation of the insulated wire is first loosened, and then the device is moved left and right, so that the roller 362 rolls on the cross arm, thereby driving the device to move left and right, and there are a number of pits on both sides of the outer surface of the roller 362 to increase the left and right movement of the device When swinging, the friction between the roller 362 and the cross arm prevents the L-shaped connecting plate 32 from being separated from the cross arm. A second moving groove 31 is provided on the top wall of the J-shaped groove 33 on the side away from the support block 1. A second receiving groove 37 is provided on the inner wall of the second moving groove 31 on the side away from the slide plate 35. When the grinding plate 322 moves into the second receiving groove 37, the L-shaped connecting plate 32 can move up and down in the second moving groove 31. The lower end of the slide plate 35 is provided with an air bag 34 that is connected to the second moving groove 31. The air bag The opening of the J-shaped groove 34 is fixedly connected with a part of the inner wall of the J-shaped groove 33 close to the second movable groove 31, so that the L-shaped connecting plate 32 moves downward to squeeze all the air into the airbag 34, thereby inflating it and lifting the slide plate 35. The inside of the second movable groove 31 is provided with an L-shaped connecting plate 32 extending to the outside of the first connecting block 3, and the lower end surface of the horizontal part of the L-shaped connecting plate 32 is coated with polytetrafluoroethylene to reduce the friction between the L-shaped connecting plate 32 and the cross arm, so that it can move better;

[0034] For further information, see Figure 4 The vertical part of the L-shaped connecting plate 32 is provided with a plurality of first plug-in grooves 321 that penetrate the side walls on both sides thereof. The diameter of the first plug-in groove 321 is equal to the diameter of the second receiving groove 37. One of the first plug-in grooves 321 and the second receiving groove 37 are jointly provided with a grinding plate 322 for fixing the L-shaped connecting plate 32. When the grinding plate 322 slides from the second receiving groove 37 into the first plug-in groove 321, the L-shaped connecting plate 32 and the first connecting block 3 remain fixed, so that the upper end of the first connecting block 3 is close to the lower end of the cross arm to prevent the device from falling. The end of the grinding plate 322 away from the slide plate 35 is provided with a plug-in rod 323, and the end of the plug-in rod 323 away from the grinding plate 322 extends to the outside of the first connecting block 3 and is provided with a pull ring 324. By pulling the pull ring 324, the grinding plate 322 and the plug-in rod 323 are controlled to move left and right, so as to fix the L-shaped connecting plate 32 and the first connecting block 3.

[0035] Therefore, first hang the L-shaped connecting plate 32 on the horizontal plane on the upper part of the crossarm, then press the L-shaped connecting plate 32 and control the first connecting block 3 to move upward, so that the air in the second movable groove 31 enters the airbag 34 to inflate it, thereby pushing the slide plate 35 upward, and after the slide plate 35 moves up a certain distance, the magnet plate 36 will attract the crossarm, causing the roller 362 to be tightly attached to the lower end of the horizontal part of the crossarm, and after replacing an insulator string, the first connecting block 3 is moved to make the roller 362 roll on the crossarm, so that the device moves to the position of the next insulator string to be replaced. Example

[0036] like Figure 5-9 As shown, a T-slot 14 is provided inside the support block 1 and passes through the outer wall of one side thereof, and a T-shaped movable rod 2 is provided inside the T-slot 14 and extends to the outside of the support block 1, and the vertical portion of the T-shaped movable rod 2 is always located in the T-slot 14 to prevent the support block 1 and the T-shaped movable rod 2 from being separated, and a second connecting block 4 is provided at one end of the T-shaped movable rod 2 away from the support block 1, and a clamping mechanism 5 for fixing the insulated conductor is provided at the upper end of the second connecting block 4. The clamping mechanism 5 is used to fix the insulated conductor to prevent the insulated conductor from falling and being unable to immediately install the replaced insulator string, thereby affecting the replacement speed of the insulator string.

[0037] For details, please refer to Figure 5-7The clamping mechanism 5 includes an L-shaped fixing plate 52 and a bottom plate 51 fixedly connected to the upper end of the second connecting block 4. The lower end of the horizontal part of the L-shaped fixing plate 52 is an inclined surface structure with a high front and a low back, which is convenient for the L-shaped fixing plate 52 to push the insulated wire to move to the lower side of the pressing plate 523 during the downward movement, and at the same time cooperate with the squeezing plate 514 to limit the insulated wire to prevent the clamping mechanism 5 from detaching from the opening formed by the bottom plate 51 and the L-shaped fixing plate 52. The left and right outer end walls of the L-shaped fixing plate 52 are both provided with a second connecting rod 521. The second connecting rod 521 uses the rotating plate 522 to pull the squeezing plate 514 to move in the direction of the insulated wire, thereby preventing the insulated wire from separating from the clamping mechanism 5. The vertical part of the L-shaped fixing plate 52 is close to the bottom plate 51. One end is provided with two ladder-shaped grooves 525. The inner side wall of the ladder-shaped groove 525 is relatively rough, so that the L-shaped fixing plate 52 will not fall freely without external force, affecting the progress of the insulated wire. The bottom plate 51 is inserted between the bottom plate 51 and the L-shaped fixing plate 52. The front end of the bottom plate 51 is provided with two ladder blocks 515 slidably connected to the inside of the ladder groove 525, so that the bottom plate 51 can only slide up and down on the side wall of the L-shaped fixing plate 52 to squeeze and fix the insulated wire, and it is suitable for insulated wires of different specifications and sizes. A plurality of pressing plates 523 are provided at the lower end of the horizontal part of the L-shaped fixing plate 52, and the lower ends of the plurality of pressing plates 523 are located at the same horizontal height to avoid that the insulated wire is blocked by a pressing plate 523 closest to the squeezing plate 514 before it enters the angle between the bottom plate 51 and the L-shaped fixing plate 52, so that the insulated wire cannot be completely fixed. The distance between the lower end of the pressing plate 523 and the upper end of the bottom plate 51 is greater than the distance between the lower end of the L-shaped fixing plate 52 and the upper end of the bottom plate 51. That is, the pressing plate 523 cannot touch the bottom plate 51, so that the insulated wire cannot be detached from the side of the clamping mechanism 5.

[0038] Specifically, a pull rope 524 is provided at the lower end of the vertical portion of the L-shaped fixing plate 52, and a plurality of second plug-in grooves 41 are evenly opened at the front end of the second connecting block 4. The grinding block 451 is slidably inserted into the second plug-in groove 41 to stop the sliding rod 45 and the second rotating rod 42 from rotating, so as to prevent the L-shaped fixing plate 52 from loosening and causing the insulated wire to separate from the clamping mechanism 5. A second rotating rod 42 is provided at the front end of the second connecting block 4 and the second rotating rod 42 is located in the middle position of the plurality of second plug-in grooves 41, that is, the plurality of second plug-in grooves 41 are evenly distributed on the outer periphery of the second rotating rod 42, and a portion of the pull rope 524 away from the L-shaped fixing plate 52 is wound around the outer surface of the second rotating rod 42, and the rotation of the second rotating rod 42 is utilized to make the pull rope 524 continuously wound around the second rotating rod 42, thereby making the L-shaped fixing plate 52 loose. The type fixing plate 52 continuously squeezes the insulated wire to fix it, and the outer surface of the second rotating rod 42 is provided with a baffle 43 located in front of the pull rope 524 to prevent the pull rope 524 from winding up too much and causing it to be entangled with other components such as the slide rod 45, affecting the normal use of the clamping mechanism 5. The end of the second rotating rod 42 away from the second connecting block 4 is provided with an adapter plate 44, and a part of the adapter plate 44 away from the second rotating rod 42 is provided with a slide rod 45 that passes through the front and rear ends of the adapter plate 44, that is, the slide rod 45 can slide horizontally on the adapter plate 44, and the end of the slide rod 45 close to the second connecting block 4 is provided with a grinding block 451 slidably connected to the inside of the second plug-in slot 41. When the grinding block 451 is slidably inserted into the second plug-in slot 41, the clamping mechanism 5 will no longer change, thereby preventing the insulated wire from separating from the clamping mechanism 5;

[0039] For further information, see Fig. 9 The left and right outer end walls of the bottom plate 51 are both provided with sliding grooves 511, and the first connecting rods 512 are slidably arranged inside the two sliding grooves 511. The outer surfaces of the first connecting rod 512 and the second connecting rod 521 located on the same side are rotatably connected with a rotating plate 522 for pulling and moving. The second connecting rod 521 moves downward together with the L-shaped fixing plate 52, thereby pulling the rotating plate 522 away from the bottom plate 51 to move in the direction of the bottom plate 51, so that the extrusion plate 514 moves in the direction of the bottom plate 51 to extrude and fix the insulated wire. The outer surface of the first connecting rod 512 is provided with a moving plate 513, and the end of the moving plate 513 away from the first connecting rod 512 is provided with an extrusion plate 514 for fixing the insulated wire. In addition to performing secondary extrusion and fixation on the insulated wire, the extrusion plate 514 can also push the insulated wire to accelerate its movement in the direction of the bottom plate 51.

[0040] Therefore, first place the insulated wire on the bottom plate 51, and then shake the sliding bar 45 to make the second rotating bar 42 rotate to reel in the pull rope 524, and pull the L-shaped fixing plate 52 downward to squeeze and fix the insulated wire. At the same time, the second connecting rod 521 moves downward to pull the rotating plate 522 and the first connecting rod 512, forcing the squeezing plate 514 to move toward the L-shaped fixing plate 52, thereby pushing the insulated wire to move toward the bottom plate 51 until the insulated wire and the pressing plate 523 are tightly attached to each other. Finally, the grinding block 451 is controlled to slide and insert into the second plug-in slot 41 to keep the L-shaped fixing plate 52 fixed, thereby fixing the insulated wire. Example

[0041] like Figure 10-12 As shown, a first opening slot 22 is provided in the middle of one end of the horizontal part of the T-shaped moving rod 2, and a groove 221 is provided on the inner wall of the first opening slot 22 except the inner wall on the front side to prevent the first rack 13 and the first rotating rod 12 from leaving the first opening slot 22, and a second rack 23 is fixedly installed on the bottom wall of the groove 221, and an outer wall of one side of the support block 1 close to the T-shaped moving rod 2 is provided with a first rotating rod 12 extending to the T-slot 14 and the inside of the groove 221, and a part of the outer surface of the first rotating rod 12 located inside the groove 221 is provided with a first rack 13 meshing with the second rack 23, The first rack 13 and the second rack 23 are meshed with each other to make the T-shaped moving rod 2 move left and right along with the rotation of the first rotating rod 12, thereby tightening the insulated wire, thereby facilitating the disassembly and assembly of the insulator string. In addition, the meshing between the two makes it impossible for the T-shaped moving rod 2 to move without the rotation of the first rotating rod 12, thereby keeping the insulated wire in a tightened state during the replacement of the insulator string. A rotating disk 11 is provided at one end of the first rotating rod 12 away from the first rack 13, thereby facilitating the external control of the first rotating rod 12 to rotate, thereby controlling the movement of the T-shaped moving rod 2.

[0042] For further information, see Fig.12A first movable groove 17 is provided in the middle of the top wall of the T-slot 14, and a first receiving groove 15 is provided on the top wall of the first movable groove 17, which runs through the front and rear ends of the support block 1. Two support plates 16 for supporting the insulator string are provided inside the first receiving groove 15, and the support plate 16 is rotatably connected to the inside of the first receiving groove 15, and in the initial state, one side of the support plate 16 close to the triangular plate 21 is an arc structure, so that the triangular plate 21 can squeeze and unfold the support plate 16, and a triangular plate 21 is provided at the upper end of the vertical part of the T-shaped movable rod 2, and the upper part of the triangular plate 21 passes through the first movable groove 17 and extends to the inside of the first receiving groove 15, so that the triangular plate 21 can move in the first movable groove 17 and the first receiving groove 15 to squeeze and press the two support plates 16, and the sum of the lengths of the triangular plate 21 and the support plate 16 is equal to the length of the first movable groove 17, that is, when the support block 1 and the T-shaped movable rod 2 are at the maximum length, the support plate 16 retracts into the first receiving groove 15 to maintain a closed state.

[0043] In summary, the specific implementation method is: rotate the turntable 11, control the first rotating rod 12 and the first rack 13 to rotate, and use the engagement between the first rack 13 and the second rack 23 to retract the T-shaped movable rod 2 into the T-slot 14. While the T-shaped movable rod 2 moves, the triangular plate 21 will also squeeze the two support plates 16 in the first receiving groove 15 to expand them outward to support the insulator string, making it convenient for the staff to take a break, thereby reducing the labor intensity of the staff.

[0044] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A transmission line jumper insulator string replacement device, comprising a support block (1), characterized in that: A first connecting block (3) for keeping the device in a horizontal state is provided at one end of the supporting block (1); a J-shaped groove (33) is provided on a side of the upper end of the first connecting block (3) close to the supporting block (1); a slide plate (35) is provided inside the J-shaped groove (33); the upper end of the slide plate (35) extends to the outside of the first connecting block (3) and is provided with a magnet plate (36) for adsorbing a cross arm of the power tower; a second opening groove (361) is provided on the upper part of the slide plate (35) and passes through the upper end of the magnet plate (36); a roller (362) is rotatably connected inside the second opening groove (361); a second movable groove (31) is provided on a top wall of a side of the J-shaped groove (33) away from the supporting block (1); and an inner wall of the second movable groove (31) away from the slide plate (35) is provided. A second receiving groove (37) is provided, the lower end of the slide plate (35) is provided with an air bag (34) communicating with the second moving groove (31), the interior of the second moving groove (31) is provided with an L-shaped connecting plate (32) extending to the outside of the first connecting block (3), the vertical portion of the L-shaped connecting plate (32) is provided with a plurality of first plug-in grooves (321) penetrating through the side walls on both sides thereof, one of the first plug-in grooves (321) and the interior of the second receiving groove (37) are jointly provided with a grinding plate (322) for fixing the L-shaped connecting plate (32), the end of the grinding plate (322) away from the slide plate (35) is provided with a plug-in rod (323), the end of the plug-in rod (323) away from the grinding plate (322) extends to the outside of the first connecting block (3) and is provided with a pull ring (324); The support block (1) is provided with a T-shaped slot (14) penetrating through an outer wall of one side thereof, the T-shaped slot (14) is provided with a T-shaped movable rod (2) extending to the outside of the support block (1), the end of the T-shaped movable rod (2) away from the support block (1) is provided with a second connecting block (4), and the upper end of the second connecting block (4) is provided with a clamping mechanism (5) for fixing the insulated wire.

2. A transmission line jumper insulator string replacement device according to claim 1, characterized in that: The clamping mechanism (5) comprises an L-shaped fixing plate (52) and a bottom plate (51) fixedly connected to the upper end of the second connecting block (4); two ladder-shaped grooves (525) are provided at one end of the vertical portion of the L-shaped fixing plate (52) close to the bottom plate (51); and two ladder-shaped blocks (515) slidably connected to the inside of the ladder-shaped grooves (525) are provided at the front end of the bottom plate (51).

3. A transmission line jumper insulator string replacement device according to claim 2, characterized in that: The lower end of the horizontal portion of the L-shaped fixing plate (52) is an inclined surface structure with a high front and a low rear.

4. A transmission line jumper insulator string replacement device according to claim 3, characterized in that: A plurality of pressing plates (523) are provided at the lower end of the horizontal portion of the L-shaped fixing plate (52), and the lower ends of the plurality of pressing plates (523) are located at the same horizontal height, and the distance between the lower end of the pressing plate (523) and the upper end of the bottom plate (51) is greater than the distance between the lower end of the L-shaped fixing plate (52) at a lower height and the upper end of the bottom plate (51).

5. A transmission line jumper insulator string replacement device according to claim 4, characterized in that: The left and right outer end walls of the L-shaped fixing plate (52) are both provided with a second connecting rod (521), the left and right outer end walls of the bottom plate (51) are both provided with a slide groove (511), the inside of the two slide grooves (511) are both provided with a first connecting rod (512) slidably arranged, the outer surfaces of the first connecting rod (512) and the second connecting rod (521) located on the same side are rotatably connected to a rotating plate (522) for pulling and moving, the outer surface of the first connecting rod (512) is provided with a moving plate (513), and the end of the moving plate (513) away from the first connecting rod (512) is provided with an extrusion plate (514) for fixing the insulated wire.

6. A transmission line jumper insulator string replacement device according to claim 5, characterized in that: A pull rope (524) is provided at the lower end of the vertical part of the L-shaped fixing plate (52), a plurality of second plug-in slots (41) are evenly opened at the front end of the second connecting block (4), a second rotating rod (42) is provided at the front end of the second connecting block (4) and the second rotating rod (42) is located in the middle of the plurality of second plug-in slots (41), a portion of the pull rope (524) away from the L-shaped fixing plate (52) is wound around the outer surface of the second rotating rod (42), a baffle (43) is provided on the outer surface of the second rotating rod (42) and is located in front of the pull rope (524), an adapter plate (44) is provided at one end of the second rotating rod (42) away from the second connecting block (4), a sliding rod (45) penetrating the front and rear ends of the adapter plate (44) is provided at a portion of the adapter plate (44) away from the second rotating rod (42), and a grinding block (451) slidably connected to the inside of the second plug-in slot (41) is provided at one end of the sliding rod (45) close to the second connecting block (4).

7. A transmission line jumper insulator string replacement device according to claim 1, characterized in that: A first opening slot (22) is provided in the middle of one end of the horizontal part of the T-shaped moving rod (2); a groove (221) is provided on the inner walls of the first opening slot (22) except the front inner wall; a second rack (23) is fixedly mounted on the bottom wall of the groove (221); a first rotating rod (12) extending into the T-slot (14) and the groove (221) is provided on the outer wall of the support block (1) on one side close to the T-shaped moving rod (2); a first rack (13) meshing with the second rack (23) is provided on a portion of the outer surface of the first rotating rod (12) located inside the groove (221); and a rotating disk (11) is provided on the end of the first rotating rod (12) away from the first rack (13).

8. A transmission line jumper insulator string replacement device according to claim 7, characterized in that: A first movable groove (17) is provided in the middle of the top wall of the T-shaped groove (14), a first receiving groove (15) penetrating the front and rear ends of the support block (1) is provided on the top wall of the first movable groove (17), and two support plates (16) for supporting the insulator string are provided inside the first receiving groove (15).

9. A transmission line jumper insulator string replacement device according to claim 8, characterized in that: A triangular plate (21) is provided at the upper end of the vertical portion of the T-shaped moving rod (2), and the upper portion of the triangular plate (21) passes through the first moving groove (17) and extends to the interior of the first receiving groove (15).

10. A transmission line jumper insulator string replacement device according to claim 9, characterized in that: The sum of the lengths of the triangular plate (21) and the support plate (16) is equal to the length of the first movable groove (17).

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