Wiring auxiliary device for power grid construction

Abstract

The invention discloses a stringing auxiliary device for power grid construction, and relates to the field of power construction, the stringing auxiliary device comprises a vertical plate, one side of the vertical plate is fixedly provided with a supporting seat, the top of the supporting seat is provided with a rotating seat, the rotating seat is rotatably connected with a jacking arm, and the end part of the jacking arm is provided with a bearing groove; and a cavity is formed in the supporting seat, the inner wall of the cavity is rotationally connected with a winding wheel, and a steel wire rope is wound on the outer portion of the winding wheel. According to the stringing auxiliary device for power grid construction, through mutual cooperation of the vertical plate, the locking hoop unit, the adjusting unit, the jacking arm, the steel wire rope and the winding wheel, a power transmission line can be jacked up in the stringing process, and under the cooperation effect of a large gear, a small gear and a telescopic pipe, the power transmission line can be conveniently stringed; by means of the jacking arm, the driving force needed to be provided in the jacking process of the jacking arm can be small, so that an operator can easily jack up the power transmission line for installation, and the stringing work safety of the power transmission line is higher.

Description

Technical Field

[0001] The invention relates to electric power construction technology, and in particular to a wiring auxiliary device used for power grid construction. Background Art

[0002] The laying of transmission lines requires the construction of transmission towers or transmission poles first, and the placement of transmission lines on the cross arms of the transmission towers or transmission poles. Construction workers then need to climb to the top of the transmission towers or transmission poles to install insulators. After the insulators are installed, the transmission lines are lifted into the top grooves of the insulators to complete the line construction.

[0003] At present, the construction of transmission line stringing is too dependent on manpower. In the process of lifting the transmission line to the groove on the top of the insulator, the construction workers need to support the heavy transmission line with their shoulders and lift the transmission line to the same height as the top of the insulator, and then adjust the position of the transmission line by moving the body, and string it into the groove on the top of the insulator. Since this process is carried out on the top of the transmission tower or transmission pole, and the construction workers mainly use foot buckles or cross arms as footholds, a slight carelessness will cause a fall accident, which poses a great threat to personnel safety. In addition, during the construction process, if a high-voltage transmission line with a thicker wire diameter is encountered during construction, the construction workers will need to consume more physical strength to lift the transmission line, which will cause greater physical consumption, which not only greatly increases the work risk of the construction workers, but also makes the stringing construction efficiency relatively low, which is not conducive to the stringing work of power grid construction. Summary of the invention

[0004] The object of the present invention is to provide a wiring auxiliary device for power grid construction to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a line-hanging auxiliary device for power grid construction, comprising a vertical plate, a support seat is fixedly installed on one side of the vertical plate, a rotating seat is arranged on the top of the support seat, a lifting arm is rotatably connected to the rotating seat, and a bearing groove is provided at the end of the lifting arm;

[0006] The support seat is provided with a cavity inside, the inner wall of the cavity is rotatably connected to a winding wheel, the outside of the winding wheel is wound with a wire rope, the inside of the vertical plate is provided with a guide groove in the vertical direction, the end of the wire rope away from the winding wheel enters from the bottom of the guide groove and passes through the top thereof and is fixedly connected to the end of the lifting arm away from the rotating seat, the outside of the winding wheel is coaxially fixedly connected to a large gear, the inner wall of the cavity is rotatably connected to a small gear, the surface of the support seat is rotatably connected to a rotating wheel coaxially arranged with the small gear, and the outside of the rotating wheel is installed with a telescopic tube;

[0007] Two sets of locking hoop units are installed on the other side of the vertical plate, and the locking hoop units are used to connect and fix the vertical plate to the electric pole;

[0008] An adjustment unit is installed between the rotating seat and the supporting seat, and the adjustment unit is used to adjust the lifting position of the jacking arm.

[0009] Furthermore, the bearing groove is arranged in an arc shape, and the shape of the bearing groove is three-quarters of a circle.

[0010] Furthermore, the lifting arm is tilted in an initial state, and the end of the lifting arm away from the vertical plate is tilted upward, the top end of the guide groove is higher than the connection point between the wire rope and the lifting arm, and rounded corners are provided at the notches at the upper and lower ends of the guide groove.

[0011] Furthermore, the large gear is meshed with the small gear, and the gear ratio between the large gear and the small gear is 5:1.

[0012] Furthermore, the locking hoop unit includes a mounting base fixedly installed, two groups of arc hoop plates are symmetrically rotatably connected on both sides of the mounting base, one end of the arc hoop plate away from the vertical plate is fixedly connected to a fixing plate, a bolt groove is provided on the surface of the fixing plate, the two fixing plates are connected by fastening bolts and fastening nuts, and an arc groove adapted to the two groups of arc hoop plates is provided on the surface of the mounting base, and the inner wall of the arc groove and the inner side surface of the arc hoop plate are both roughened.

[0013] Furthermore, the adjusting unit includes a rotating base rotatably connected to the top of the supporting seat, the rotating seat is rotatably connected to the top of the rotating base, a cylindrical groove is opened inside the rotating seat, the inner side surface of the cylindrical groove is slidably connected with a blocking piece, the top of the blocking piece is fixedly connected with a lifting rod, the top of the lifting rod passes through the top of the rotating seat, a compression spring is fixedly connected between the top of the blocking piece and the top of the inner wall of the cylindrical groove, the bottom of the blocking piece is fixedly connected with a positioning rod, and the surface of the rotating base is provided with four positioning grooves equidistantly distributed in a circular shape, the position and specification of the positioning grooves correspond to the positioning rod, and the positioning rod can be inserted into the positioning groove.

[0014] Furthermore, the outside of the support seat is rotatably connected to a ratchet that is coaxially fixedly connected to the large gear, and a circular cover is fixedly installed on the outside of the support seat. The inner wall of the circular cover is rotatably connected to a pawl that matches the ratchet, and an extrusion spring is fixedly connected between the surface of the pawl and the inner wall of the circular cover. The pawl can limit the ratchet to rotate in one direction.

[0015] Furthermore, a circular groove is provided inside the rotating wheel, and a limiting wheel located inside the circular groove is rotatably connected to the outside of the support seat. The limiting wheel is coaxially and fixedly connected to the pinion gear, and a plurality of matching grooves are provided in a circular ring shape on the limiting wheel. A plurality of groups of straight grooves are provided on the inner wall of the limiting wheel, and a connecting spring is fixedly connected to the inner wall of the straight groove, and a matching block is fixedly connected to the end of the connecting spring.

[0016] Furthermore, a first guiding inclined surface is provided on one side of the inner wall of the mating groove, a first driving straight surface is provided on the other side of the inner wall of the mating groove, and a second guiding inclined surface and a second driving straight surface corresponding to the first guiding inclined surface and the first driving straight surface respectively are provided on the mating block.

[0017] Furthermore, the direction in which the pawl limits the unidirectional rotation of the ratchet is consistent with the direction in which the second driving surface pushes the first driving surface to rotate.

[0018] Compared with the prior art, the present invention provides a wiring auxiliary device for power grid construction, which has the following beneficial effects:

[0019] 1. The auxiliary wire-stringing device for power grid construction can jack up the transmission line during the stringing process through the cooperation between the vertical plate, the locking hoop unit, the adjustment unit, the jacking arm, the wire rope, and the winding wheel. In addition, under the cooperation between the large gear, the small gear, and the telescopic tube, the driving force required to be provided by the jacking arm during the jacking process can be reduced, so that the operator can jack up and install the transmission line more easily, making the stringing work of the transmission line safer.

[0020] 2. The auxiliary line-hanging device for power grid construction limits the rotation direction of the winding wheel by the cooperation of the ratchet and the pawl, and the cooperation between the matching block and the matching groove on the limiting wheel enables the operator to provide power by reciprocating the telescopic tube within a certain angle range when the rotation of the telescopic tube provides driving force for the rotation of the winding wheel, so that the operator can always maintain a relatively relaxed and convenient state to lift the transmission line, making the transmission line hanging efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0023] Figure 2A schematic diagram of the structure of the fastening bolts, fastening nuts and fixing plates in the separated state provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the internal structure of a support base provided by an embodiment of the present invention;

[0025] Figure 4 The embodiment of the present invention provides Figure 3 The enlarged structural diagram at A in the middle;

[0026] Figure 5 A schematic diagram of a partial cross-sectional structure of a rotating seat and a rotating base provided in an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the internal structure of a circular cover provided in an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of the internal structure of a rotating wheel provided in an embodiment of the present invention;

[0029] Figure 8 The embodiment of the present invention provides Figure 7 Enlarged structural diagram at B in the middle.

[0030] Description of reference numerals:

[0031] 1. Vertical plate; 2. Support seat; 21. Rotating seat; 22. Lifting arm; 23. Loading groove; 3. Winding wheel; 31. Wire rope; 32. Guide groove; 33. Large gear; 34. Small gear; 35. Rotating wheel; 36. Telescopic tube; 4. Mounting seat; 41. Arc hoop plate; 42. Fixing plate; 43. Bolt groove; 44. Fastening bolt; 45. Fastening nut; 46. Arc groove; 5. Rotating base; 51. Cylindrical groove; 52. Blocking piece; 53. Lifting rod; 54. Compression spring; 55. Positioning rod; 56. Positioning groove; 6. Ratchet; 61. Round cover; 62. Ratchet pawl; 63. Extrusion spring; 64. Round groove; 65. Limiting wheel; 66. Matching groove; 67. Straight groove; 68. Connecting spring; 69. Matching block; 610. First guide inclined surface; 611. First driving straight surface; 612. Second guide inclined surface; 613. Second driving straight surface. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] Embodiment 1:

[0034] See also Figure 1-Figure 5A line-hanging auxiliary device for power grid construction comprises a vertical plate 1, a support seat 2 is fixedly mounted on one side of the vertical plate 1, a rotating seat 21 is arranged on the top of the support seat 2, a lifting arm 22 is rotatably connected to the rotating seat 21, and a bearing groove 23 is provided at the end of the lifting arm 22;

[0035] A cavity is provided inside the support seat 2, and a winding wheel 3 is rotatably connected to the inner wall of the cavity, and a steel wire rope 31 is wound on the outside of the winding wheel 3. A guide groove 32 is provided inside the vertical plate 1 in the vertical direction, and the end of the steel wire rope 31 away from the winding wheel 3 enters from the bottom of the guide groove 32 and passes through the top thereof and is fixedly connected to the end of the lifting arm 22 away from the rotating seat 21. A large gear 33 is coaxially fixedly connected to the outside of the winding wheel 3, and a small gear 34 is rotatably connected to the inner wall of the cavity. A rotating wheel 35 coaxially arranged with the small gear 34 is rotatably connected to the surface of the support seat 2, and a telescopic tube 36 is installed on the outside of the rotating wheel 35.

[0036] Two sets of locking hoop units are installed on the other side of the vertical plate 1, and the locking hoop units are used to connect and fix the vertical plate 1 to the electric pole;

[0037] An adjustment unit is installed between the rotating seat 21 and the supporting seat 2 , and the adjustment unit is used to adjust the lifting position of the lifting arm 22 .

[0038] It should be supplemented that the bearing groove 23 is arranged in an arc shape, and the shape of the bearing groove 23 is three-quarters of a circle, so that the bearing groove 23 can well bear the transmission line when the jacking arm 22 rotates upward.

[0039] It should be further explained that the lifting arm 22 is tilted in its initial state, and the end of the lifting arm 22 away from the vertical plate 1 is tilted upward, the top position of the guide groove 32 is higher than the connection point between the wire rope 31 and the lifting arm 22, and the upper and lower ends of the guide groove 32 are provided with rounded corners, so that the resistance of the wire rope 31 to the lifting arm 22 when it is initially pulled upward is small.

[0040] In this embodiment, the large gear 33 is meshed with the small gear 34 , and the gear ratio between the large gear 33 and the small gear 34 is 5:1.

[0041] It should be noted that the small gear 34 drives the large gear 33 to rotate to provide driving force for the upward rotation of the lifting arm 22, so that the power output required by the operator is small. At the same time, with the cooperation of the telescopic tube 36, the length of the power arm can be increased when the operator applies the rotation force, thereby greatly reducing the driving force required by the operator, making the upward rotation of the lifting arm 22 easier.

[0042] In this embodiment, the locking hoop unit includes two groups of arc hoop plates 41 fixedly installed on the mounting base 4, and the mounting base 4 has two groups of arc hoop plates 41 symmetrically rotatably connected on both sides. The arc hoop plate 41 is fixedly connected to the end away from the vertical plate 1 with a fixing plate 42. The surface of the fixing plate 42 is provided with a bolt groove 43. The two fixing plates 42 are connected with a fixing nut 45 by a fastening bolt 44. The surface of the mounting base 4 is provided with an arc groove 46 adapted to the two groups of arc hoop plates 41, and the inner wall of the arc groove 46 and the inner side surface of the arc hoop plate 41 are both roughened.

[0043] In this embodiment, the adjusting unit includes a rotating base 5 rotatably connected to the top of the supporting base 2, and the rotating base 21 is rotatably connected to the top of the rotating base 5. A cylindrical groove 51 is opened inside the rotating base 21, and a baffle 52 is slidably connected to the inner side surface of the cylindrical groove 51. The top of the baffle 52 is fixedly connected to a lifting rod 53, and the top of the lifting rod 53 passes through the top of the rotating base 21. A compression spring 54 is fixedly connected between the top of the baffle 52 and the top of the inner wall of the cylindrical groove 51, and a positioning rod 55 is fixedly connected to the bottom of the baffle 52. Four positioning grooves 56 equidistantly distributed in a circular shape are opened on the surface of the rotating base 5. The position and specification of the positioning groove 56 correspond to the positioning rod 55, and the positioning rod 55 can be inserted into the positioning groove 56.

[0044] During the process of lifting the transmission line, the operator climbs to the top of the pole and fits the vertical plate 1 to a suitable position on the pole so that the vertical plate 1 faces the routing direction of the transmission line, then rotates the arc-shaped hoop plates 41 on both sides, and connects and fixes the arc-shaped hoop plates 41 on both sides by means of the fastening bolts 44 and the fastening nuts 45, thus completing the installation of the vertical plate 1;

[0045] The operator pulls the lifting rod 53 upwards, and the lifting rod 53 moves to drive the blocking piece 52 and the positioning rod 55 upwards, so that the positioning rod 55 moves out of the positioning groove 56. At this time, the rotating seat 21 and the rotating base 5 can rotate relative to each other. Then the operator rotates the rotating seat 21, and the rotating seat 21 rotates to drive the jacking arm 22 to rotate, so that the jacking arm 22 rotates 90° to be perpendicular to the direction of the transmission line. After that, the lifting rod 53 is released, so that the positioning rod 55 can be re-inserted into the positioning groove 56, so that the jacking arm 22 has better stability in the subsequent work process. Then, the transmission line hanging down on one side of the cross arm is engaged in the bearing groove 23.

[0046] After the transmission line is connected to the lifting arm 22, the operator pulls the telescopic tube 36 outward to stretch it to its longest value, and then the operator applies a driving force to the end of the telescopic tube 36 away from the rotating wheel 35, so that the rotating wheel 35 rotates, and the rotation of the rotating wheel 35 drives the small gear 34 to rotate, and the rotation of the small gear 34 drives the large gear 33 to rotate, and the rotation of the large gear 33 drives the winding wheel 3 to rotate. During the rotation of the winding wheel 3, the wire rope 31 is wound. Under the guidance of the guide groove 32, when one end of the wire rope 31 is wound, the other end of the wire rope can pull the lifting arm 22 to rotate upward. When the lifting arm 22 rotates upward, it can drive the transmission line to move upward. When the transmission line is lifted to a suitable height, the operator stops rotating the telescopic tube 36 and pulls the lifting rod 53 upward, so that the rotating seat 21 can rotate relative to the rotating base 5. At this time, the operator can adjust the front and rear position of the transmission line by slightly rotating the lifting arm 22. In the process, the tension of the wire rope 31 can be adapted by slightly rotating the rotating wheel 35, so that the transmission line can fall more smoothly into the groove on the top of the insulator.

[0047] Embodiment 2:

[0048] See also Figure 6-Figure 8 This embodiment provides a technical solution based on the above embodiment: the outside of the support seat 2 is rotatably connected to a ratchet 6 coaxially fixedly connected to the large gear 33, and a circular cover 61 is fixedly installed on the outside of the support seat 2. The inner wall of the circular cover 61 is rotatably connected to a pawl 62 adapted to the ratchet 6, and an extrusion spring 63 is fixedly connected between the surface of the pawl 62 and the inner wall of the circular cover 61. The pawl 62 can limit the ratchet 6 from rotating in one direction.

[0049] In this embodiment, a circular groove 64 is provided inside the rotating wheel 35, and a limiting wheel 65 located inside the circular groove 64 is rotatably connected to the outside of the support seat 2. The limiting wheel 65 is coaxially fixedly connected to the pinion 34, and a plurality of matching grooves 66 are provided in a circular ring shape on the limiting wheel 65. A plurality of groups of straight grooves 67 are provided on the inner wall of the limiting wheel 65, and a connecting spring 68 is fixedly connected to the inner wall of the straight groove 67, and a matching block 69 is fixedly connected to the end of the connecting spring 68.

[0050] In this embodiment, a first guide bevel 610 is provided on one side of the inner wall of the mating groove 66, a first driving straight surface 611 is provided on the other side of the inner wall of the mating groove 66, and a second guide bevel 612 and a second driving straight surface 613 corresponding to the first guide bevel 610 and the first driving straight surface 611 respectively are provided on the mating block 69.

[0051] It should be added that the direction in which the pawl 62 limits the unidirectional rotation of the ratchet 6 is consistent with the direction in which the second driving surface 613 pushes the first driving surface 611 to rotate, and the rotatable direction of the ratchet 6 is consistent with the rotation direction of the winding wheel 3 when winding the wire rope 31.

[0052] When the driving force is output to the lifting arm 22, the operator can rotate the telescopic tube 36 according to his actual position, so that it can be rotated to an angle that is convenient for the operator to exert force, and in the process of driving the lifting arm 22 to rotate, after driving the small gear 34 to rotate a certain angle by rotating the telescopic tube 36, the operator can reversely rotate the telescopic tube 36 to make the rotating wheel 35 rotate in the reverse direction, and in this process, the reverse rotation of the large gear 33 is restricted by the cooperation between the ratchet 6 and the pawl 62, so that the lifting arm 22 cannot automatically reverse and reset after being lifted;

[0053] During the normal rotation of the rotating wheel 35, its rotation will drive the second driving straight surface 613 on the matching block 69 to abut against the first driving straight surface 611 in the matching groove 66 and apply thrust, so that the rotation of the rotating wheel 35 can drive the limiting wheel 65 to rotate synchronously, and the rotation of the limiting wheel 65 can drive the pinion 34 to rotate, so that the lifting arm 22 can be normally driven to rotate upward. When the rotating wheel 35 rotates in the reverse direction, the ratchet 6 and the pawl 62 cooperate to limit the reverse rotation of the pinion 34, that is, to limit the reverse rotation of the limiting wheel 65, so that the rotating wheel 35 When the second guide bevel 612 on the matching block 69 is reversed to abut against the first guide bevel 610 on the matching groove 66 and apply a thrust, under the guiding action of the second guide bevel 612 and the first guide bevel 610, the matching block 69 will move toward the inside of the straight groove 67 and compress the connecting spring 68, so that the matching block 69 and the limiting wheel 65 will rotate relative to each other, and the position of the telescopic tube 36 can be adjusted in the reverse direction, so that the rotation angle of the telescopic tube 36 is always within the range that the operator can easily apply force, thereby facilitating the operator to lift the transmission line upward.

[0054] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wiring auxiliary device for power grid construction, characterized in that: It comprises a vertical plate (1), a support seat (2) is fixedly mounted on one side of the vertical plate (1), a rotating seat (21) is arranged on the top of the support seat (2), a lifting arm (22) is rotatably connected to the rotating seat (21), and a bearing groove (23) is provided at the end of the lifting arm (22); The support seat (2) is provided with a cavity inside, the inner wall of the cavity is rotatably connected to a winding wheel (3), the outside of the winding wheel (3) is wound with a steel wire rope (31), the inside of the vertical plate (1) is provided with a guide groove (32) in the vertical direction, the end of the steel wire rope (31) away from the winding wheel (3) enters from the bottom of the guide groove (32) and passes through the top thereof to be fixedly connected to the end of the lifting arm (22) away from the rotating seat (21), the outside of the winding wheel (3) is coaxially fixedly connected to a large gear (33), the inner wall of the cavity is rotatably connected to a small gear (34), the surface of the support seat (2) is rotatably connected to a rotating wheel (35) coaxially arranged with the small gear (34), and the outside of the rotating wheel (35) is installed with a telescopic tube (36); Two groups of locking hoop units are installed on the other side of the vertical plate (1) and are distributed up and down, and the locking hoop units are used to connect and fix the vertical plate (1) to the electric pole; An adjustment unit is installed between the rotating seat (21) and the supporting seat (2), and the adjustment unit is used to adjust the lifting position of the lifting arm (22).

2. A wiring auxiliary device for power grid construction according to claim 1, characterized in that: The bearing groove (23) is arranged in an arc shape, and the shape of the bearing groove (23) is three-quarters of a circle.

3. A wiring auxiliary device for power grid construction according to claim 1, characterized in that: The lifting arm (22) is tilted in an initial state, and one end of the lifting arm (22) away from the vertical plate (1) is tilted upward, the top end of the guide groove (32) is higher than the connection point between the wire rope (31) and the lifting arm (22), and rounded corners are provided at the notches at both ends of the guide groove (32).

4. A wiring auxiliary device for power grid construction according to claim 1, characterized in that: The large gear (33) is meshed with the small gear (34), and the gear ratio between the large gear (33) and the small gear (34) is 5:

1.

5. A wiring auxiliary device for power grid construction according to claim 1, characterized in that: The locking hoop unit comprises a mounting base (4) fixedly mounted thereon, two groups of arc hoop plates (41) being symmetrically rotatably connected on both sides of the mounting base (4), one end of the arc hoop plate (41) away from the vertical plate (1) being fixedly connected to a fixing plate (42), a bolt groove (43) being provided on the surface of the fixing plate (42), the two fixing plates (42) being connected to a fixing nut (45) via a fastening bolt (44), an arc groove (46) matching the two groups of arc hoop plates (41) being provided on the surface of the mounting base (4), the inner wall of the arc groove (46) and the inner side surface of the arc hoop plate (41) being both roughened.

6. A wiring auxiliary device for power grid construction according to claim 1, characterized in that: The adjusting unit comprises a rotating base (5) rotatably connected to the top of the supporting base (2); the rotating base (21) is rotatably connected to the top of the rotating base (5); a cylindrical groove (51) is provided inside the rotating base (21); a baffle (52) is slidably connected to the inner side surface of the cylindrical groove (51); a top end of the baffle (52) is fixedly connected to a lifting rod (53); the top end of the lifting rod (53) passes through the top of the rotating base (21); a compression spring (54) is fixedly connected between the top of the baffle (52) and the top end of the inner wall of the cylindrical groove (51); a positioning rod (55) is fixedly connected to the bottom of the baffle (52); four positioning grooves (56) equidistantly distributed in a circular shape are provided on the surface of the rotating base (5); the position and specification of the positioning groove (56) correspond to those of the positioning rod (55); the positioning rod (55) can be inserted into the inside of the positioning groove (56).

7. A wiring auxiliary device for power grid construction according to claim 1, characterized in that: The outside of the support seat (2) is rotatably connected to a ratchet (6) coaxially fixedly connected to the large gear (33); a circular cover (61) is fixedly installed on the outside of the support seat (2); a ratchet pawl (62) adapted to the ratchet (6) is rotatably connected to the inner wall of the circular cover (61); a compression spring (63) is fixedly connected between the surface of the ratchet pawl (62) and the inner wall of the circular cover (61); and the ratchet pawl (62) can limit the ratchet (6) from rotating in one direction.

8. A wiring auxiliary device for power grid construction according to claim 7, characterized in that: A circular groove (64) is provided inside the rotating wheel (35); a limiting wheel (65) located inside the circular groove (64) is rotatably connected to the outside of the supporting seat (2); the limiting wheel (65) is coaxially fixedly connected to the pinion (34); a plurality of matching grooves (66) are provided in an annular shape on the limiting wheel (65); a plurality of groups of straight grooves (67) are provided on the inner wall of the limiting wheel (65); a connecting spring (68) is fixedly connected to the inner wall of the straight groove (67); and a matching block (69) is fixedly connected to the end of the connecting spring (68).

9. A wiring auxiliary device for power grid construction according to claim 8, characterized in that: A first guiding inclined surface (610) is provided on one side of the inner wall of the matching groove (66), a first driving straight surface (611) is provided on the other side of the inner wall of the matching groove (66), and a second guiding inclined surface (612) and a second driving straight surface (613) corresponding to the first guiding inclined surface (610) and the first driving straight surface (611) are provided on the matching block (69).

10. A wiring auxiliary device for power grid construction according to claim 9, characterized in that: The direction in which the pawl (62) limits the unidirectional rotation of the ratchet wheel (6) is consistent with the direction in which the second driving straight surface (613) drives the first driving straight surface (611) to rotate.

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