Power grid wiring auxiliary device

Abstract

The invention relates to the technical field of power grid wiring auxiliary equipment, in particular to a power grid wiring auxiliary device which comprises two fixing frames and further comprises a fixed pulley, an adjusting mechanism, two movable pulleys, two bottom plates and two limiting mechanisms, and the adjusting mechanism comprises a U-shaped mounting frame, a driving assembly, two square mounting frames, two telescopic assemblies and four moving assemblies. According to the device, the fixed pulley and the two movable pulleys can be adjusted from the horizontal state to the bent state, the horizontal state is suitable for linear wiring or the situation that a certain direction needs to be kept, and the bent state facilitates adjustment of the cable wiring direction. And meanwhile, the cable can effectively bypass obstacles during wiring, so that the device can bend and straighten the pay-off pulley according to specific use requirements and use environments, and more flexible and efficient wiring operation can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of power grid wiring auxiliary equipment, in particular to a power grid wiring auxiliary device. Background Art

[0002] The power grid refers to the whole composed of substations and transmission and distribution lines of various voltages in the power system, which has the function of transmitting and distributing electric energy and changing voltage. The power grid wiring refers to laying cables between various poles to realize the transmission of current. In the process of power grid wiring, the cable laying pulley is an indispensable auxiliary device in cable laying. It is mainly used to protect the cables when laying them, avoiding damage and rupture of the cables during the laying process.

[0003] The existing auxiliary wire-laying pulleys for power grid wiring have the following shortcomings: The structure of the existing pay-off pulley is fixed. When it is necessary to change the cable routing direction or bypass obstacles, the existing pay-off pulley cannot be bent according to specific usage requirements and usage environment. When laying cables, a pay-off pulley of one specification can only correspond to cables of one thickness. When laying cables of different diameters, different types of pay-off pulleys are required.

[0004] In view of the above problems, a power grid wiring auxiliary device is now provided. Summary of the invention

[0005] The object of the present invention is to provide a power grid wiring auxiliary device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A power grid wiring auxiliary device comprises two fixing frames, a fixed pulley, an adjusting mechanism, two movable pulleys, two bottom plates and two limiting mechanisms; The fixed pulley is located between the two fixed frames, and the two movable pulleys are symmetrically arranged on both sides of the fixed pulley; The adjustment mechanism includes a U-shaped mounting frame, a driving assembly, two square mounting frames, two telescopic assemblies and four moving assemblies, the U-shaped mounting frame is fixed between the two fixed frames, the fixed pulley is rotatably arranged inside the U-shaped mounting frame, the two square mounting frames are symmetrically arranged on both sides of the U-shaped mounting frame, each movable pulley is rotatably arranged inside a square mounting frame, every two moving assemblies are installed on a fixed frame, and each moving assembly is located at one end of a square mounting frame, each telescopic assembly is installed between two moving assemblies on a fixed frame, and the driving assembly is installed between the two fixed frames and the two moving assemblies; The two limiting mechanisms are respectively installed on two square mounting frames, each limiting mechanism includes a rotating component, two limiting wheels and two swinging components, the two limiting wheels are symmetrically arranged at the top of a movable pulley, each swinging component is installed between the square mounting frame and a limiting wheel, and the rotating component is installed between the square mounting frame and the two swinging components.

[0007] As a further solution of the present invention: each moving component includes a first plug rod, an arc groove, a sliding sleeve, a moving rod and a mounting seat, the arc groove is opened on the surface of the fixed frame, the first plug rod is inserted into the inside of the arc groove, one end of the first plug rod is fixedly connected to the square mounting frame, the other end of the first plug rod is fixedly connected to the sliding sleeve, the mounting seat is slidably arranged on the bottom plate, the moving rod is fixedly installed inside the mounting seat, and the sliding sleeve is slidably arranged on the moving rod through a sliding bearing.

[0008] As a further solution of the present invention: each telescopic assembly includes a central axis, a rotating rod and two hinged rods. The central axis is rotatably arranged on one side of the fixed frame, the middle part of the rotating rod is fixedly installed on the central axis, the two ends of the rotating rod are respectively hinged to the two hinged rods, and the other end of each hinged rod is hinged to a mounting seat.

[0009] As a further solution of the present invention: a vertical rod is fixed to the bottom end of each mounting seat, a slider is fixed to the bottom end of each vertical rod, two guide rails are symmetrically installed on the top end of each base plate, and each slider is slidably set inside a guide rail.

[0010] As a further solution of the present invention: the driving assembly includes a first motor, a rotating shaft, two first sprockets, two second sprockets and two chains, a first sprocket is fixed to the end of each central shaft, the rotating shaft is rotatably arranged between two fixed frames, the two second sprockets are fixedly installed at both ends of the rotating shaft, each chain is sleeved on a first sprocket and a second sprocket, the first motor is fixed to the top of one of the base plates, and the output end of the first motor is fixedly connected to one end of the rotating shaft.

[0011] As a further solution of the present invention: a connecting block is fixedly installed on one side of the two fixing frames close to each other, and the other end of each connecting block is fixedly connected to the U-shaped mounting frame.

[0012] As a further solution of the present invention: each swing assembly includes an avoidance groove, a rocker arm, a first U-shaped seat, a strip groove, a second plug rod, a turntable and a side plate, the avoidance groove is opened on one side of the square mounting frame, the rocker arm is rotatably arranged inside the avoidance groove, the first U-shaped seat is fixedly installed on one end of the rocker arm close to the limiting wheel, the limiting wheel is rotatably arranged inside the first U-shaped seat, the strip groove is opened at one end of the rocker arm away from the first U-shaped seat, the side plate is located on one side of the rocker arm and fixed on the surface of the square mounting frame, the turntable is rotatably arranged on the side plate, one end of the second plug rod is fixed at the surface edge of the turntable, and the other end of the second plug rod is inserted into the inside of the strip groove.

[0013] As a further solution of the present invention: the rotating assembly includes a second motor, a mounting plate, a belt and two pulleys, each pulley is located at an end of the side plate away from the turntable, each pulley is coaxial with the turntable and fixedly connected, the belt sleeve is arranged on the two pulleys, the mounting plate is installed on one side of the square mounting frame, the second motor is installed on the mounting plate, and the output end of the second motor is fixedly connected to one of the pulleys.

[0014] As a further solution of the present invention: each square mounting frame is rotatably provided with four guide rods for guiding the belts at one end away from the fixed pulley, and each belt is sleeved on the four guide rods.

[0015] As a further solution of the present invention: a second U-shaped seat is provided above the two fixing frames, two ends of the second U-shaped seat are respectively fixedly connected to the two fixing frames, and a hook is installed above the second U-shaped seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. A power grid wiring auxiliary device of the present invention can adjust the positions of two movable pulleys on both sides by setting two telescopic components and four movable components, so that a fixed pulley and two movable pulleys can be adjusted from a horizontal state to a bent state. The horizontal state is suitable for straight wiring or situations where a certain direction needs to be maintained. The bent state is convenient for adjusting the cable wiring direction, and also convenient for the cable to effectively bypass obstacles during wiring, thereby improving the protective effect of cable wiring. Therefore, the device can bend and straighten the pay-off pulley according to specific use requirements and use environment, is more flexible to use, and can achieve more flexible and efficient wiring operations.

[0017] 2. A power grid wiring auxiliary device of the present invention, by setting a driving component, enables the two movable pulleys to be adjusted synchronously, without the need to adjust the positions of the two movable pulleys in sequence, which is beneficial to reducing the time required for the bending of the pay-off pulley and is beneficial to improving the power grid wiring efficiency.

[0018] 3. A power grid wiring auxiliary device of the present invention can limit the cable by arranging two limiting wheels at the top of each movable pulley, thereby ensuring that the cable can be stably transported on the fixed pulley and the two movable pulleys. At the same time, the positions of the two limiting wheels on a movable pulley can be adjusted by using a swing assembly, so that the size of the gap formed by the movable pulley and the two limiting wheels can be adjusted, thereby facilitating the auxiliary wiring of cables of different diameters. The device has a wide range of applications. During actual wiring, there is no need to equip a variety of different types of pay-off pulleys, so that the device can meet the wiring requirements of cables of different diameters.

[0019] 4. A power grid wiring auxiliary device of the present invention can be installed on a seat for use by setting a base plate, and can be hung on a hanging plate for use by setting a hook, so that the device has the function of being used as a seat or hanging, and can be flexibly selected according to specific usage scenarios and needs. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure of part A.

[0022] Figure 3 It is a side view of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the present invention without the fixed pulley and the movable pulley.

[0024] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of part B.

[0025] Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure of part C.

[0026] Figure 7 It is a structural schematic diagram of the square mounting frame in the present invention.

[0027] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of part D.

[0028] Fig. 9 It is a schematic diagram of the bending state of the present invention.

[0029] Among them: 11, fixed frame; 12, fixed pulley; 13, U-shaped mounting frame; 14, movable pulley; 15, square mounting frame; 16, connecting block; 17, first plug rod; 18, arc groove; 19, sliding sleeve; 20, moving rod; 21, mounting seat; 22, vertical rod; 23, slider; 24, guide rail; 25, central axis; 26, rotating rod; 27, hinged rod; 28, first sprocket; 29, second sprocket; 30, chain; 31, first motor; 32, rotating shaft; 33, avoidance groove; 34, swing rod; 35, first U-shaped seat; 36, limiting wheel; 37, strip groove; 38, second plug rod; 39, turntable; 40, side plate; 41, pulley; 42, belt; 43, guide rod; 44, second motor; 45, mounting plate; 46, second U-shaped seat; 47, hook; 48, bottom plate. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] The present invention provides the following preferred embodiments: Embodiment 1, as Figure 1-Figure 9 As shown, a power grid wiring auxiliary device includes two fixed frames 11, the two fixed frames 11 are symmetrically arranged, and also include a fixed pulley 12, an adjustment mechanism, two movable pulleys 14, two bottom plates 48 and two limit mechanisms. Specifically, the fixed pulley 12 and the two movable pulleys 14 are of the same shape and size; The fixed pulley 12 is located between the two fixed frames 11, and the two movable pulleys 14 are symmetrically arranged on both sides of the fixed pulley 12, and each movable pulley 14 is located between the two fixed frames 11; The adjustment mechanism includes a U-shaped mounting frame 13, a driving assembly, two square mounting frames 15, two telescopic assemblies and four moving assemblies. The U-shaped mounting frame 13 is fixed between two fixed frames 11. The fixed pulley 12 is rotatably arranged inside the U-shaped mounting frame 13. The two square mounting frames 15 are symmetrically arranged on both sides of the U-shaped mounting frame 13. Each movable pulley 14 is rotatably arranged inside a square mounting frame 15. Every two moving assemblies are installed on a fixed frame 11, and each moving assembly is located at one end of a square mounting frame 15. Each telescopic assembly is installed between two moving assemblies on a fixed frame 11. The driving assembly is installed between the two fixed frames 11 and the two moving assemblies. By setting two telescopic components and four moving components, the positions of the two movable pulleys 14 on both sides can be adjusted, so that one fixed pulley 12 and two movable pulleys 14 can be adjusted from a horizontal state to a curved state. The horizontal state is suitable for straight line wiring or when a certain direction needs to be maintained. The curved state is convenient for adjusting the cable wiring direction, and it is also convenient for the cable to effectively bypass obstacles during wiring, thereby improving the protective effect of cable wiring. Therefore, the device can bend and straighten the pay-off pulley according to specific use requirements and use environment, which is more flexible to use and can achieve more flexible and efficient wiring operations. By setting up a driving component, the two movable pulleys 14 can be adjusted synchronously without having to adjust the positions of the two movable pulleys 14 one by one, which is beneficial to reducing the time required for the bending of the pay-off pulley and improving the efficiency of power grid wiring.

[0032] The two limiting mechanisms are respectively installed on two square mounting frames 15, each limiting mechanism can limit the cable above a movable pulley 14, each limiting mechanism includes a rotating component, two limiting wheels 36 and two swinging components, the two limiting wheels 36 are symmetrically arranged at the top of a movable pulley 14, and by arranging two limiting wheels 36 at the top of each movable pulley 14, the movable pulley 14 and the two limiting wheels 36 can play a role in limiting the cable, ensuring that the cable can be stably transported on the fixed pulley 12 and the two movable pulleys 14, and each swinging component is installed It is installed between a square mounting frame 15 and a limiting wheel 36, and the rotating component is installed between the square mounting frame 15 and two swinging components. The rotating component can drive the two swinging components to work synchronously. The swinging component can be used to adjust the positions of the two limiting wheels 36 on a movable pulley 14, so that the size of the gap formed by the movable pulley 14 and the two limiting wheels 36 is adjustable, thereby facilitating the auxiliary wiring of cables of different diameters. The application range is wide. During actual wiring, there is no need to equip a variety of different types of pay-off pulleys, so that the device can meet the wiring requirements of cables of different diameters.

[0033] like Figure 1-Figure 9 As shown, each moving assembly includes a first plug rod 17, an arc groove 18, a sliding sleeve 19, a moving rod 20 and a mounting seat 21. The arc groove 18 is provided on the surface of the fixing frame 11, the first plug rod 17 is inserted into the inside of the arc groove 18, one end of the first plug rod 17 is fixedly connected to the square mounting frame 15, the other end of the first plug rod 17 is fixedly connected to the sliding sleeve 19, the mounting seat 21 is slidably arranged on the bottom plate 48, the moving rod 20 is fixedly installed inside the mounting seat 21, and the sliding sleeve 19 is slidably arranged on the moving rod 20 through a sliding bearing; When the telescopic assembly drives the mounting seat 21 to move, the mounting seat 21 can drive the moving rod 20 to move, thereby driving the sliding sleeve 19 and the first insertion rod 17 to move. Since the first insertion rod 17 slides inside the arc groove 18, when the mounting seat 21 moves, it can drive the first insertion rod 17 to slide along the arc groove 18, so that the square mounting frame 15 can slide along the arc groove 18, thereby driving the movable pulley 14 to move, and adjusting the position of the movable pulley 14, so that one fixed pulley 12 and two movable pulleys 14 can be adjusted from a horizontal state to a bent state.

[0034] like Figure 1-Figure 9 As shown, each telescopic assembly includes a central shaft 25, a rotating rod 26 and two hinged rods 27. The central shaft 25 is rotatably arranged on one side of the fixed frame 11. The middle part of the rotating rod 26 is fixedly installed on the central shaft 25. The two ends of the rotating rod 26 are respectively hinged to the two hinged rods 27. The other end of each hinged rod 27 is hinged to a mounting seat 21. When the driving assembly is working, it can drive the central shaft 25 to rotate, and the central shaft 25 can drive the rotating rod 26 to rotate. Since the mounting seat 21 is slidably set on the bottom plate 48, when the rotating rod 26 rotates, the two mounting seats 21 on both sides can be driven to move horizontally under the action of the two hinged rods 27.

[0035] like Figure 1-Figure 9 As shown, a vertical rod 22 is fixed to the bottom end of each mounting seat 21, a slider 23 is fixed to the bottom end of each vertical rod 22, two guide rails 24 are symmetrically installed on the top end of each base plate 48, and each slider 23 is slidably set inside a guide rail 24. The sliding connection between the slider 23 and the guide rail 24 can guide the movement of the mounting seat 21 and ensure the stability of the mounting seat 21 when moving.

[0036] like Figure 1-Figure 9 As shown, the driving assembly includes a first motor 31, a rotating shaft 32, two first sprockets 28, two second sprockets 29 and two chains 30. A first sprocket 28 is fixed to the end of each central shaft 25. The rotating shaft 32 is rotatably arranged between the two fixing frames 11. The two second sprockets 29 are fixedly mounted on both ends of the rotating shaft 32. Each chain 30 is sleeved on a first sprocket 28 and a second sprocket 29. The first motor 31 is fixed to the top of one of the bottom plates 48. The output end of the first motor 31 is fixedly connected to one end of the rotating shaft 32. During use, when it is necessary to adjust a fixed pulley 12 and two movable pulleys 14 from a horizontal state to a bent state, the first motor 31 is controlled to work, and the first motor 31 can drive the rotating shaft 32 to rotate. When the rotating shaft 32 rotates, it can drive the two second sprockets 29 on the rotating shaft 32 to rotate. Under the action of the two chains 30, when the two second sprockets 29 rotate, they can drive the two first sprockets 28 to rotate, so that the two center shafts 25 can rotate, so that the two telescopic components can work, so that the four movable components can work, and the position of the two movable pulleys 14 can be adjusted.

[0037] like Figure 1-Figure 9 As shown, a connecting block 16 is fixedly installed on one side of the two fixing frames 11 close to each other, and the other end of each connecting block 16 is fixedly connected to the U-shaped mounting frame 13. The connecting block 16 can realize a fixed connection between the fixing frame 11 and the U-shaped mounting frame 13, ensuring that the fixed pulley 12 is in a stable and stationary state.

[0038] like Figure 1-Figure 9 As shown, each swing assembly includes an avoidance groove 33, a swing rod 34, a first U-shaped seat 35, a strip groove 37, a second plug rod 38, a turntable 39 and a side plate 40. The avoidance groove 33 is opened at one side of the square mounting frame 15, the swing rod 34 is rotatably arranged inside the avoidance groove 33, the first U-shaped seat 35 is fixedly installed at one end of the swing rod 34 close to the limiting wheel 36, the limiting wheel 36 is rotatably arranged inside the first U-shaped seat 35, the strip groove 37 is opened at one end of the swing rod 34 away from the first U-shaped seat 35, the side plate 40 is located at one side of the swing rod 34 and fixed to the surface of the square mounting frame 15, the turntable 39 is rotatably arranged on the side plate 40, one end of the second plug rod 38 is fixed at the surface edge of the turntable 39, and the other end of the second plug rod 38 is inserted into the inside of the strip groove 37; When the positions of the two limiting wheels 36 above the movable pulley 14 need to be adjusted, the rotating assembly can drive the turntable 39 to rotate, and when the turntable 39 rotates, the second plug rod 38 can be driven to rotate. Since the second plug rod 38 is inserted into the inside of the strip groove 37, when the second plug rod 38 rotates with the turntable 39, it can drive the swing rod 34 to swing inside the avoidance groove 33, so that the limiting wheel 36 can be driven to swing through the first U-shaped seat 35, so that the position of the limiting wheel 36 is adjustable, so that the limiting wheel 36 can contact the surface of the cable, and the movable pulley 14 and the two limiting wheels 36 can play a role in limiting the cable, ensuring that the cable can be stably transported on the fixed pulley 12 and the two movable pulleys 14; At the same time, by adjusting the position of the limiting wheel 36, the size of the gap formed by the movable pulley 14 and the two limiting wheels 36 can be adjusted, thereby facilitating auxiliary wiring of cables with different diameters and having a wide range of applications.

[0039] like Figure 1-Figure 9As shown, the rotating assembly includes a second motor 44, a mounting plate 45, a belt 42 and two pulleys 41. Each pulley 41 is located at an end of the side plate 40 away from the turntable 39. Each pulley 41 is coaxial with the turntable 39 and fixedly connected. The belt 42 is sleeved on the two pulleys 41. The mounting plate 45 is installed on one side of the square mounting frame 15. The second motor 44 is installed on the mounting plate 45. The output end of the second motor 44 is fixedly connected to one of the pulleys 41.

[0040] Four guide rods 43 are rotatably provided at one end of each square mounting frame 15 away from the fixed pulley 12 for guiding the belt 42. Each belt 42 is sleeved on the four guide rods 43. The guide rods 43 guide the belt 42 so that the belt 42 can be away from the cable to avoid the cable. When the turntable 39 needs to be rotated, the second motor 44 is controlled to work, and the second motor 44 can drive a pulley 41 connected to its output end to rotate. Under the action of the belt 42, the two pulleys 41 can rotate synchronously. Since the pulley 41 and the turntable 39 are coaxial and fixedly connected, the turntable 39 can be driven to rotate when the pulley 41 rotates.

[0041] like Figure 1-Figure 9 As shown, a second U-shaped seat 46 is provided above the two fixing frames 11, and both ends of the second U-shaped seat 46 are fixedly connected to the two fixing frames 11 respectively. A hook 47 is installed above the second U-shaped seat 46. By setting a bottom plate 48, the device can be installed on a seat for use. By setting a hook 47, the device can be hung on a hanging plate for use, so that the device has the function of being a seat or a hanging, and can be flexibly selected according to specific usage scenarios and needs.

[0042] The specific working process of the present invention is as follows: First, the device is installed at a suitable position using the bottom plate 48 or the hook 47. When the transmission direction of the cable needs to be changed or the cable needs to be bypassed by an obstacle, after the device is installed at a suitable position, the first motor 31 is controlled to work. The first motor 31 can drive the rotating shaft 32 to rotate. When the rotating shaft 32 rotates, the two second sprockets 29 on the rotating shaft 32 can be driven to rotate. Under the action of the two chains 30, when the two second sprockets 29 rotate, the two first sprockets 28 can be driven to rotate, so that the two central shafts 25 can be rotated. The central shaft 25 can rotate with the rotating rod 26. Since the mounting seat 21 is slidably arranged on the bottom plate 48, when the rotating rod 26 rotates, the two mounting seats 21 on both sides can be driven to move horizontally under the action of the two hinged rods 27. The mounting seat 21 can drive the moving rod 20 to move, thereby driving the sliding sleeve 19 and the first plug rod 17 to move. Since the first plug rod 17 slides inside the arc groove 18, when the mounting seat 21 moves, it can drive the first plug rod 17 to slide along the arc groove 18, so that the square mounting frame 15 can slide along the arc groove 18, thereby driving the movable pulley 14 to move. By adjusting the position of the movable pulley 14, one fixed pulley 12 and two movable pulleys 14 can be adjusted from a horizontal state to a bent state. The bent state is convenient for adjusting the cable wiring direction, and it is also convenient for the cable to effectively bypass obstacles during wiring, thereby improving the protective effect of cable wiring. Then, one end of the cable is passed through the fixed pulley 12 and the two movable pulleys 14, and the second motor 44 is controlled to work. The second motor 44 can drive a pulley 41 connected to its output end to rotate. Under the action of the belt 42, the two pulleys 41 can rotate synchronously. Since the pulley 41 and the turntable 39 are coaxial and fixedly connected, when the pulley 41 rotates, the turntable 39 can be driven to rotate. When the turntable 39 rotates, the second plug rod 38 can be driven to rotate. Since the second plug rod 38 is inserted into the inside of the strip groove 37, when the second plug rod 38 rotates with the turntable 39, it can drive the swing rod 34 to swing inside the avoidance groove 33, so that the limiting wheel 36 can be driven to swing through the first U-shaped seat 35, so that the position of the limiting wheel 36 is adjustable, so that the limiting wheel 36 can contact the surface of the cable, and the movable pulley 14 and the two limiting wheels 36 can play a role in limiting the cable, ensuring that the cable can be stably transported on the fixed pulley 12 and the two movable pulleys 14; When wiring the power grid, the use of the rotatable fixed pulley 12 and the movable pulley 14 can not only ensure the transportation of the cable, but also guide and protect the cable, and can effectively prevent the cable from contacting the ground, and avoid damage and breakage of the cable during the wiring process. At the same time, by adjusting the position of the limiting wheel 36, the size of the gap formed by the movable pulley 14 and the two limiting wheels 36 can be adjusted, thereby facilitating the auxiliary wiring of cables of different diameters, and having a wide range of applications.

[0043] The beneficial effects of the present invention are specifically embodied in that 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 principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power grid wiring auxiliary device, comprising two fixing frames (11), characterized in that: It also includes a fixed pulley (12), an adjustment mechanism, two movable pulleys (14), two bottom plates (48) and two limit mechanisms; The fixed pulley (12) is located between the two fixed frames (11), and the two movable pulleys (14) are symmetrically arranged on both sides of the fixed pulley (12); The adjustment mechanism comprises a U-shaped mounting frame (13), a driving assembly, two square mounting frames (15), two telescopic assemblies and four moving assemblies, wherein the U-shaped mounting frame (13) is fixed between two fixed frames (11), a fixed pulley (12) is rotatably arranged inside the U-shaped mounting frame (13), two square mounting frames (15) are symmetrically arranged on both sides of the U-shaped mounting frame (13), each moving pulley (14) is rotatably arranged inside a square mounting frame (15), every two moving assemblies are mounted on a fixed frame (11), and each moving assembly is located at one end of a square mounting frame (15), each telescopic assembly is mounted between two moving assemblies on a fixed frame (11), and the driving assembly is mounted between the two fixed frames (11) and the two moving assemblies; The two limiting mechanisms are respectively mounted on two square mounting frames (15), each limiting mechanism comprising a rotating assembly, two limiting wheels (36) and two swinging assemblies, the two limiting wheels (36) being symmetrically arranged on the top of a movable pulley (14), each swinging assembly being mounted between the square mounting frame (15) and a limiting wheel (36), and the rotating assembly being mounted between the square mounting frame (15) and the two swinging assemblies.

2. A power grid wiring auxiliary device according to claim 1, characterized in that: Each moving assembly comprises a first insertion rod (17), an arc groove (18), a sliding sleeve (19), a moving rod (20) and a mounting seat (21); the arc groove (18) is formed on the surface of the fixing frame (11); the first insertion rod (17) is inserted into the inside of the arc groove (18); one end of the first insertion rod (17) is fixedly connected to the square mounting frame (15); the other end of the first insertion rod (17) is fixedly connected to the sliding sleeve (19); the mounting seat (21) is slidably arranged on the bottom plate (48); the moving rod (20) is fixedly installed inside the mounting seat (21); and the sliding sleeve (19) is slidably arranged on the moving rod (20) via a sliding bearing.

3. A power grid wiring auxiliary device according to claim 2, characterized in that: Each telescopic assembly comprises a central shaft (25), a rotating rod (26) and two hinged rods (27); the central shaft (25) is rotatably arranged on one side of the fixed frame (11); the middle part of the rotating rod (26) is fixedly mounted on the central shaft (25); the two ends of the rotating rod (26) are respectively hinged to the two hinged rods (27); and the other end of each hinged rod (27) is hinged to a mounting seat (21).

4. A power grid wiring auxiliary device according to claim 3, characterized in that: A vertical rod (22) is fixed to the bottom end of each mounting seat (21), a slider (23) is fixed to the bottom end of each vertical rod (22), two guide rails (24) are symmetrically mounted on the top end of each base plate (48), and each slider (23) is slidably disposed inside a guide rail (24).

5. A power grid wiring auxiliary device according to claim 4, characterized in that: The driving assembly comprises a first motor (31), a rotating shaft (32), two first sprocket wheels (28), two second sprocket wheels (29) and two chains (30), wherein a first sprocket wheel (28) is fixed to the end of each central shaft (25), the rotating shaft (32) is rotatably arranged between two fixing frames (11), the two second sprocket wheels (29) are respectively fixedly mounted on the two ends of the rotating shaft (32), each chain (30) is sleeved on a first sprocket wheel (28) and a second sprocket wheel (29), the first motor (31) is fixed to the top end of one of the base plates (48), and the output end of the first motor (31) is fixedly connected to one end of the rotating shaft (32).

6. A power grid wiring auxiliary device according to claim 5, characterized in that: A connecting block (16) is fixedly mounted on one side of the two fixing frames (11) close to each other, and the other end of each connecting block (16) is fixedly connected to the U-shaped mounting frame (13).

7. A power grid wiring auxiliary device according to claim 6, characterized in that: Each swing assembly comprises an avoidance groove (33), a swing rod (34), a first U-shaped seat (35), a strip groove (37), a second insertion rod (38), a turntable (39) and a side plate (40); the avoidance groove (33) is opened on one side of the square mounting frame (15); the swing rod (34) is rotatably arranged inside the avoidance groove (33); the first U-shaped seat (35) is fixedly mounted on one end of the swing rod (34) close to the limiting wheel (36); the limiting wheel (36) is rotatably arranged inside the avoidance groove (33); The first U-shaped seat (35) is arranged inside the first U-shaped seat, the strip groove (37) is opened at one end of the swing rod (34) away from the first U-shaped seat (35), the side plate (40) is located on one side of the swing rod (34) and is fixed to the surface of the square mounting frame (15), the rotating disk (39) is rotatably arranged on the side plate (40), one end of the second insertion rod (38) is fixed at the edge of the surface of the rotating disk (39), and the other end of the second insertion rod (38) is inserted into the strip groove (37).

8. A power grid wiring auxiliary device according to claim 7, characterized in that: The rotating assembly comprises a second motor (44), a mounting plate (45), a belt (42) and two pulleys (41), each pulley (41) being located at one end of the side plate (40) away from the rotating disk (39), each pulley (41) being coaxial with and fixedly connected to the rotating disk (39), the belt (42) being sleeved on the two pulleys (41), the mounting plate (45) being mounted on one side of the square mounting frame (15), the second motor (44) being mounted on the mounting plate (45), and the output end of the second motor (44) being fixedly connected to one of the pulleys (41).

9. A power grid wiring auxiliary device according to claim 8, characterized in that: Four guide rods (43) for guiding the belts (42) are rotatably provided at one end of each square mounting frame (15) away from the fixed pulley (12), and each belt (42) is sleeved on the four guide rods (43).

10. A power grid wiring auxiliary device according to claim 9, characterized in that: A second U-shaped seat (46) is provided above the two fixing frames (11), two ends of the second U-shaped seat (46) are respectively fixedly connected to the two fixing frames (11), and a hook (47) is installed above the second U-shaped seat (46).

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