A hanging rope device for power transmission line maintenance

Abstract

The present invention relates to the field of electric power engineering technology, and in particular to a hanging rope device for transmission line maintenance, comprising a frame, a flip cover, an elastic member and a holding member, wherein the upper part of the frame is provided with a hanging groove with an opening facing downward, the opening is used for the cross arm of the transmission tower to enter the hanging groove; the flip cover is arranged below the opening and is connected to the lower part of the frame by rotating up and down; the elastic member is used to apply an elastic force to flip the flip cover upward, and under the elastic force of the elastic member, the flip cover is kept in a state of covering the lower end of the opening; the holding member is connected to the frame by sliding up and down, the upper end of the holding member is used to connect to a drone, the lower end of the holding member is connected to a pulling rope, and the end of the pulling rope away from the holding member is connected to a position of the flip cover deviating from the rotation center; when the drone pulls up the frame, the holding member and the pulling rope have pulled the flip cover to an open state, the drone directly lifts the frame to above the cross arm and then drops the frame to hang the hanging groove on the cross arm, and can automatically close the flip cover, the operation is simple, and the rope hanging efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power engineering, in particular to a hanging rope device for power transmission line maintenance. Background Art

[0002] To ensure the normal operation of power transmission lines, inspection and maintenance are essential. High-voltage transmission line towers are typically equipped with foot spikes for workers to climb up and down. Without proper safety protection, workers climbing towers can easily fall from height.

[0003] The Chinese utility model patent with authorization announcement number CN214344037U discloses an anti-fall rope for transmission line maintenance, including a hanging rope device and a rope body connected to the lower end of the hanging rope device, the hanging rope device includes a mounting plate and a hook fixed on the mounting plate, the hook includes a vertically arranged hook rod portion and a semicircular hook body portion, the lower end of the hook rod portion is fixedly connected to the mounting plate, the hook body portion is open downward, and a movable plate for closing the opening is hinged on one side of the hook rod portion, and a guide plate is provided at the end of the movable plate away from the hook rod portion. The guide plate is inclined and extends outside the hook portion. The hook rod portion is also provided with a torsion spring for applying an upward torsional force to the movable plate, so that the movable plate remains in a horizontal state, thereby closing the opening. During use, a drone is used to raise the rope hanging device to the bottom of the cross arm of the transmission tower, so that the guide plate extends to the part outside the hook and is located below the cross arm. Then the drone is used to lift the rope hanging device upward. When the hook moves upward, the cross arm pushes the end of the guide plate downward, so that the guide plate overcomes the elastic force of the torsion spring and rotates downward, thereby opening the opening of the hook part. Then the drone is used to move the hook part horizontally to the side close to the cross arm, and the opening of the hook part is moved above the cross arm. Then the drone is controlled to descend so that the hook is hung on the cross arm.

[0004] This type of rope hanging device requires the operator to first manipulate the drone to the side of the crossarm so that the end of the guide plate moves below the crossarm, then operate the drone to move upward, use the crossarm to push the guide plate downward to push open the movable plate, and then operate the drone to move horizontally so that the opening of the hook part is opposite to the crossarm up and down, and then operate the drone to move downward to hang the hook part on the crossarm. The operation process is cumbersome, resulting in low rope hanging efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that when operating the existing hanging rope device for a drone, the operation process is cumbersome and the hanging rope efficiency is low.

[0006] In order to solve the above technical problems, the purpose of the present invention is to provide a hanging rope device for power transmission line maintenance, comprising:

[0007] A frame, wherein the upper portion of the frame has a hanging slot, the hanging slot having a downward opening, the opening being used for allowing a cross arm of the transmission tower to enter the hanging slot;

[0008] A flip cover is arranged below the opening and is connected to the frame by rotating up and down;

[0009] an elastic member, the elastic member being used to apply an elastic force to the flip cover to flip upward, so that the flip cover covers the opening;

[0010] A holding member, the holding member being slidably connected to the frame body up and down, the upper end of the holding member being used to connect to the drone, the lower end of the holding member being connected to a pulling rope, and the end of the pulling rope away from the holding member being connected to a position of the flip cover that deviates from the rotation center;

[0011] Pull the holding member upward, the holding member slides upward and drives the pulling rope to pull the flip cover downward to open the opening; continue to pull the holding member upward, the pulling rope or the holding member pulls up the frame.

[0012] As a preferred solution, the flip cover includes a blocking section located on one side of the rotation center and a force-applying section located on the other side of the rotation center;

[0013] One end of the elastic member is connected to the force applying section, and the other end is connected to the frame;

[0014] One end of the pulling rope away from the holding member is connected to the force applying section.

[0015] As a preferred solution, the groove wall on one side of the hanging groove is defined as the first groove wall, the groove wall on the other side of the hanging groove is defined as the second groove wall, and the direction perpendicular to the first groove wall and the second groove wall is defined as the first direction;

[0016] An adjustment plate movable along the first direction is provided in the hanging groove, and a spacing between the adjustment plate and the first groove wall or a spacing between the second groove walls forms a positioning groove for positioning the cross arm.

[0017] As a preferred solution, the holding member is arranged on the outer side of the second groove wall, the first groove wall is threadedly assembled with an adjusting screw, and the threaded end of the adjusting screw is rotatably connected to the adjusting plate.

[0018] As a preferred solution, the upper end of the adjustment plate is slidingly guided and connected to the top wall of the hanging groove.

[0019] As a preferred solution, the rope hanging device for power line maintenance includes a guide member, the upper end of the guide member is connected to the lower end of the adjustment plate, and the lower end of the guide member extends downward and away from the second slot wall.

[0020] As a preferred solution, the first groove wall is provided with an avoidance hole for the lower end of the guide member to pass through.

[0021] As a preferred solution, a guide hole is provided on the frame, the lower end of the holding member is slidably arranged in the guide hole, and a lower stopper is provided on the outer side of the holding member to stop the lower edge of the guide hole.

[0022] As a preferred embodiment, the holding member includes a pull rod, a first cross rod, a second cross rod, a first vertical rod and a second vertical rod; the middle portion of the first cross rod is fixedly connected to the lower end of the pull rod, the upper end of the first vertical rod and the upper end of the second vertical rod are fixedly connected to the first cross rod, and the lower end of the first vertical rod and the lower end of the second vertical rod are both fixedly connected to the second cross rod;

[0023] The guide holes include a first guide hole and a second guide hole, the first vertical rod and the second vertical rod are slidably inserted into the first guide hole and the second guide hole respectively; the second cross rod forms the lower stopper.

[0024] As a preferred embodiment, the upper end of the holding member is connected to a hook with an opening facing downward, and the hanging rope device for power line maintenance also includes an insulating rope loop, the lower end of the insulating rope loop is used to be hung in the hook, and the upper end of the insulating rope loop is used to connect the drone.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The hanging rope device for power line maintenance of the present invention comprises a frame, a flip cover, an elastic member and a pulling member, the upper part of the frame is provided with a hanging groove with an opening facing downward, the opening is used for the cross arm of the transmission tower to enter the hanging groove; the flip cover is arranged below the opening and is connected to the lower part of the frame by rotating up and down; the elastic member is used to apply an elastic force to flip the flip cover upward, and under the elastic force of the elastic member, the flip cover is kept in a state of covering the lower end of the opening; the pulling member is connected to the frame by sliding up and down, the upper end of the pulling member is used to connect to the drone, the lower end of the pulling member is connected to a pulling rope, and the end of the pulling rope away from the pulling member is connected to the side of the flip cover The invention relates to a hanging rope device for a drone, wherein the holding member is pulled upward by the drone, the holding member slides upward, the holding member drives the pulling rope to pull the flap to overcome the elastic force of the elastic member and flip it downward to open, the holding member is further pulled upward by the drone, the pulling rope or the holding member pulls up the frame, and the frame is lifted above the cross arm so that the opening and the cross arm are vertically opposite, and then the drone falls, the frame is lowered, the cross arm enters the hanging groove through the opening, the drone is further lowered, the holding member falls under the action of its own gravity, the pulling rope releases the flap, and the flap automatically covers the opening under the action of the elastic force of the elastic member. According to the hanging rope device of the present invention, when the drone pulls up the frame, the holding member and the pulling rope have already pulled the flap to the open state, the drone directly lifts the frame to the cross arm and then drops the frame to hang the hanging groove on the cross arm, and the flap can be automatically closed, which is simple to operate and improves the hanging rope efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the hanging rope device for power transmission line maintenance of the present invention when the flip cover is in the closed state;

[0028] Figure 2 This is a schematic structural diagram of the rope hanging device for power transmission line maintenance according to the present invention when the flip cover is in the open state;

[0029] Figure 3 Schematic diagram of the structure of the holding member;

[0030] Figure 4 Schematic diagram of the connection structure between the adjusting screw and the adjusting plate;

[0031] Figure 5 Schematic diagram of the structure of the adjusting screw;

[0032] Figure 6 is a cross-sectional view of the adjustment plate;

[0033] Figure 7 is the main view of the guide;

[0034] Figure 8 is a side view of the guide;

[0035] In the figure, 1. frame, 11. hanging slot, 12. opening, 13. first slot wall, 131. avoidance hole, 14. second slot wall, 15. positioning slot, 16. second mounting hole, 2. flip cover, 21. cover section, 22. force section, 3. elastic member, 4. holding member, 41. pull rod, 42. first horizontal bar, 43. first vertical bar, 44. second vertical bar, 45. second horizontal bar, 46. hook, 5. pulling rope, 61. adjusting plate, 611. first mounting hole, 612. second threaded hole, 62. adjusting screw, 621. annular groove, 7. guide member, 71. main body, 72. bending section. DETAILED DESCRIPTION

[0036] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0038] like Figures 1 to 8 As shown, a preferred embodiment of the hanging rope device for power line maintenance of the present invention includes a frame 1, a flip cover 2, an elastic member 3 and a holding member 4. The upper part of the frame 1 is provided with a hanging groove 11, and the hanging groove 11 has a downward opening 12, and the opening 12 is used for the cross arm of the transmission tower to enter the hanging groove 11; the flip cover 2 is arranged below the opening 12 and is connected to the lower part of the frame 1 by rotating up and down; the elastic member 3 is used to apply an elastic force to the flip cover 2 to flip upward, and under the elastic force of the elastic member 3, the flip cover 2 remains in a state of covering the lower end of the opening 12; the holding member 4 is connected to the frame 1 by sliding up and down, and the upper end of the holding member 4 is used to connect a drone, and the lower end of the holding member 4 is connected to a pulling rope 5, and the end of the pulling rope 5 away from the holding member 4 is connected to a position of the flip cover 2 deviating from the rotation center; pull the holding member 4 upward, the holding member 4 slides upward and drives the pulling rope 5 to pull the flip cover 2 to flip downward and open; continue to pull the holding member 4 upward, and the pulling rope 5 or the holding member 4 pulls up the frame 1.

[0039] When in use, first place the frame 1 on the ground near the transmission tower or hold the frame 1 by hand, and then use the drone to pull the holding piece 4 upward to drive the holding piece 4 to slide upward. At this time, the frame 1 does not move, and the holding piece 4 drives the upper end of the pulling rope 5 to move upward. Since the lower end of the pulling rope 5 is connected to the position where the flip cover 2 deviates from the rotation center, the pulling rope 5 can pull the flip cover 2 to overcome the elastic force of the elastic piece 3 and flip it downward, thereby opening the opening 12. The force required to open the flip cover 2 is less than the gravity of the frame 1. Before pulling up the frame 1, the pulling rope 5 has already pulled open the flip cover 2, and then the holding piece continues to be pulled upward by the drone. 4, the pulling rope 5 or the holding member 4 pulls up the frame 1, and under the action of the gravity of the frame 1, the flap 2 remains in the open state; after the drone lifts the frame 1 above the crossarm, the drone adjusts its position so that the opening 12 is vertically aligned with the crossarm, and then the drone is operated to drop, lowering the frame 1. The crossarm enters the hanging groove 11 through the opening 12, and the drone continues to be lowered. The frame 1 hangs on the crossarm and stops falling. The holding member 4 continues to fall under its own gravity. After the tension of the pull rod 41 is lost, the pulling rope moves downward and releases the flap 2. The flap 2 automatically covers the opening 12 under the elastic force of the elastic member 3. Therefore, in the hanging rope device of the present invention, when the drone pulls up the frame 1, the holding member 4 and the pulling rope 5 have already pulled the flap 2 to the open state. The drone can directly lift the frame 1 above the crossarm and then drop the frame 1 to hang the hanging groove 11 on the crossarm, and the flap 2 can be automatically closed. The operation is simple and the hanging efficiency is improved.

[0040] The flap 2 can be arranged in a variety of ways, such as one end of the flap 2 being hinged to the frame 1, with the lower end of the pull cord 5 connected to the end of the flap 2 away from the center of rotation, and the upper end of the pull cord 5 passing around the lower end of the flap 2 before connecting to the lower end of the holding member 4. This arrangement requires the pull cord 5 to have a large travel range to flip the flap 2. In this embodiment, the flap 2 includes a cover-blocking section 21 located on one side of the center of rotation and a force-applying section 22 located on the other side of the center of rotation. The elastic member 3 is a tension spring, with one end of the elastic member 3 connected to the force-applying section 22 and the other end connected to the frame 1. The end of the pull cord 5 away from the holding member 4 is connected to the force-applying section 22.

[0041] Specifically, the cover section 21 is positioned below the opening 12 to cover the opening 12, thereby preventing the frame 1 from tilting or flipping after the drone places the frame 1 on the crossbar and before the operator's weight is applied to the frame 1. The force-applying section 22 and the cover section 21 form a lever structure, with the rotation center of the flip cover 2 forming the fulcrum of the lever structure. The force-applying section 22 is arranged at an angle to the cover section 21 and is shorter than the flip cover section 21. When the flip cover 2 is in the closed position, the force-applying section 22 extends downward, away from the cover section 21. The lower end of the pulling rope 5 is connected to the end of the force-applying section 22 away from the rotation center, so that the travel of the pulling rope 5 is smaller during the rotation of the flip cover 2; and when the flip cover 2 is in the closed state, the force-applying section 22 extends downward and away from the cover-blocking section 21. Therefore, it can be ensured that when the pulling rope 5 pulls the force-applying section 22 upward, the rotation angle of the force-applying section 22 can be not less than 90°, thereby ensuring that the opening 12 can be fully opened, making it convenient for the cross arm to enter the hanging groove 11.

[0042] In this embodiment, the frame 1 is entirely made of aluminum alloy. The hanging slot 11 is generally square in shape. The slot wall on one side of the hanging slot 11 is defined as a first slot wall 13, and the slot wall on the other side of the hanging slot 11 is defined as a second slot wall 14. The normal direction of the first slot wall 13 and the second slot wall 14 is the first direction. An adjustment plate 61 is provided within the hanging slot 11, which is movable along the first direction. The gap between the adjustment plate 61 and the first slot wall 13, or the gap between the second slot walls 14, forms a positioning slot 15 for positioning the crossarm. Transmission towers of different specifications have crossarms of different sizes. In this embodiment, before the frame 1 is raised using a drone, the position of the adjustment plate 61 is adjusted according to the specifications of the tower's crossarms, so that the width of the positioning slot 15 matches the specifications of the crossarms. This ensures the stability of the frame 1 when hanging on the crossarms and ensures construction safety.

[0043] Furthermore, to facilitate adjustment of the adjustment plate 61, in this embodiment, the holding member 4 is arranged on the outside of the second groove wall 14, and the first groove wall 13 is threadedly assembled with an adjustment screw 62, and the threaded end of the adjustment screw 62 is rotatably connected to the adjustment plate 61. Specifically, the first groove wall 13 is provided with a first threaded hole, and the axial direction of the first threaded hole is arranged along the first direction. The adjustment screw 62 is threadedly assembled in the first threaded hole. When the adjustment screw 62 is rotated, the adjustment screw 62 can move along the axial direction of the first threaded hole, thereby causing the adjustment screw 62 to drive the adjustment plate 61 to move along the first direction. Figure 5 As shown, an annular groove 621 is provided on the outer side of the threaded end of the adjusting screw 62. Figure 6As shown, the adjustment plate 61 is provided with a first mounting hole 611 for mounting the adjustment screw 62. The adjustment screw 62 is rotatably mounted in the first mounting hole 611. A second threaded hole 612 is provided in the wall of the first mounting hole 611. The second threaded hole 612 extends radially along the adjustment screw 62. A locking screw is mounted in the second threaded hole 612. The locking screw is rotated to insert the threaded end of the locking screw into the annular groove 621. The two sides of the locking screw are blocked by the side walls of the annular groove 621, thereby allowing the adjustment screw 62 to rotate relative to the adjustment plate 61, but not to move axially relative to the adjustment plate 61. In this embodiment, to facilitate the operator's rotation of the adjustment screw 62, the adjustment screw 62 is configured as a butterfly bolt.

[0044] To ensure stable installation of the adjustment plate 61, in this embodiment, the upper end of the adjustment plate 61 is slidably guided and connected to the top wall of the hanging groove 11. Specifically, the top wall of the hanging groove 11 and the adjustment plate 61 are slidably guided and connected via a guide rail and guide groove structure, and the length direction of the guide rail and guide groove structure is arranged along the first direction.

[0045] In order to facilitate the cross arm entering the hanging groove 11 through the opening 12 to smoothly enter the positioning groove 15, in this embodiment, the transmission line maintenance rope hanging device includes a guide 7, the upper end of the guide 7 is connected to the lower end of the adjustment plate 61, and the lower end of the guide 7 extends downward and away from the second groove wall 14. Specifically, Figure 7 、 Figure 8 As shown, in this embodiment, the guide member 7 is formed by bending a rod body, and the guide member 7 includes a main body 71 with a U-shaped structure. The ends of the two straight rod sections of the main body 71 are provided with bending sections. When the guide member 7 is installed on the adjustment plate 61, the bending section is arranged vertically and connected to the lower end of the adjustment plate 61.

[0046] In order to prevent the guiding member 7 from interfering with the first slot wall 13 when the adjusting plate 61 is moved, in this embodiment, the first slot wall 13 is provided with an escape hole 131 for the lower end of the guiding member 7 to pass through.

[0047] In this embodiment, a guide hole is provided on the frame 1, and the lower end of the holding member 4 is slidably disposed in the guide hole. A lower stopper is provided on the outer side of the holding member 4 to stop against the lower edge of the guide hole. The provision of the guide hole ensures the stability of the upward and downward movement of the holding member 4. In this embodiment, the frame 1 is pulled upward by the pull rope 5, and the provision of the lower stopper prevents the frame 1 from being separated from the holding member 4 in the event of a rope breakage. To prevent the holding member 4 from being inserted too deeply into the frame 1 and interfering with or getting stuck with the elastic member 3 or the force-applying portion, an upper stopper is provided on the outer side of the holding member 4 to stop against the upper edge of the guide hole.

[0048] In order to avoid rotation between the holding member 4 and the frame 1 when the holding member 4 is pulled upward, the holding member 4 can be set to a polygonal structure. In this embodiment, the holding member 4 includes a pull rod 41, a first cross bar 42, a second cross bar 45, a first vertical bar 43 and a second vertical bar 44; the middle part of the first cross bar 42 is fixedly connected to the lower end of the pull rod 41, the upper end of the first vertical bar 43 and the upper end of the second vertical bar 44 are fixedly connected to the first cross bar 42, and the lower end of the first vertical bar 43 and the lower end of the second vertical bar 44 are both fixedly connected to the second cross bar 45; the guide hole includes a first guide hole and a second guide hole, and the first vertical bar 43 and the second vertical bar 44 are respectively slidably penetrated into the first guide hole and the second guide hole; the second cross bar 45 forms a lower stopper, the first cross bar 42 forms an upper stopper, and the pulling rope 5 is connected to the second cross bar 45.

[0049] To facilitate the connection of the drone to the power line maintenance hanging rope device of the present invention, in this embodiment, the upper end of the holding member 4 is connected to a hook 46 with an opening 12 facing downward. The power line maintenance hanging rope device also includes an insulating rope loop, the lower end of the insulating rope loop is used to be hung in the hook 46, and the upper end of the insulating rope loop is used to connect the drone. The insulating rope loop can prevent the drone from being electrocuted due to the rope loop accidentally touching the power line. The drone drives the insulating rope loop downward, and the insulating rope loop can be detached from the hook 46. In addition, to facilitate the hanging of the anti-fall rope at the lower end of the power line maintenance hanging rope device, in this embodiment, the lower end of the frame 1 is provided with a second mounting hole 16, and the second mounting hole 16 is penetrated by a connecting bolt for connecting the anti-fall rope.

[0050] The method of using the hanging rope device for power transmission line maintenance of the present invention is as follows:

[0051] First, check the transmission tower drawing to determine the specifications of the crossarm on the transmission tower, rotate the adjusting screw 62, and adjust the adjusting plate 61 to the appropriate position so that the positioning groove 15 matches the specifications of the crossarm; then, connect the anti-fall rope to the lower end of the frame 1, fix the upper end of the insulating rope sleeve to the drone landing gear, and connect the insulating rope sleeve to the hook 46 at the upper end of the holding member 4. Then, use the drone to pull the holding member 4 upward to drive the holding member 4 to slide upward. At this time, the frame 1 does not move, and the holding member 4 drives the upper end of the pulling rope 5 to move upward. The pulling rope 5 can pull the flip cover 2 to flip down and open; thereafter, the drone continues to pull the holding member 4 upward, and the pulling rope 5 or the holding member 4 pulls up the frame 1. Under the action of gravity, the flip cover 2 remains in the open state; after the drone lifts the frame 1 to above the cross arm, the position of the drone is adjusted so that the opening 12 is opposite to the cross arm, and then the drone is operated to fall, the frame 1 is lowered, and the cross arm enters the hanging groove 11 through the opening 12, and the drone is continued to be lowered, and the frame 1 is hung on the cross arm and no longer falls; the drone continues to drop, and when the first hook 46 at the lower end of the insulating rope loop is engaged, the drone is moved horizontally so that the drone drives the insulating rope loop to detach from the hook 46; thereafter, the holding member 4 continues to fall under the action of its own gravity, and after losing the pulling force of the pull rod 41, the pull rope moves downward and releases the flip cover 2, and the flip cover 2 automatically covers the opening 12 under the elastic force of the elastic member 3.

[0052] In summary, the hanging rope device for power line maintenance of the present invention includes a frame 1, a flip cover 2, an elastic member 3 and a holding member 4. The hanging groove 11 of the frame 1 has a downward opening 12, and the flip cover 2 is arranged below the opening 12 and is connected to the lower part of the frame 1 by rotating up and down; the elastic member 3 is used to apply an elastic force to the flip cover 2 to flip upward, and under the elastic force of the elastic member 3, the flip cover 2 remains covered at the lower end of the opening 12; the holding member 4 is connected to the frame 1 for sliding up and down, and the upper end of the holding member 4 is used to connect the drone, and the lower end of the holding member 4 is connected to a pulling rope 5, and the end of the pulling rope 5 away from the holding member 4 is connected to the position of the flip cover 2 deviating from the rotation center; when the drone pulls up the frame 1, the holding member 4 and the pulling rope 5 have pulled the flip cover 2 to the open state. The drone directly lifts the frame 1 above the cross arm and then drops the frame 1 to hang the hanging groove 11 on the cross arm, and can automatically close the flip cover 2, which is simple to operate and improves the hanging rope efficiency.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A hanging rope device for power transmission line maintenance, characterized in that: include: A frame (1), wherein the upper portion of the frame (1) has a hanging groove (11), the hanging groove (11) has a downward opening (12), and the opening (12) is used for allowing a cross arm of a transmission tower to enter the hanging groove (11); A flip cover (2), the flip cover (2) being arranged below the opening (12) and connected to the frame (1) in an up-and-down rotation manner; an elastic member (3), the elastic member (3) being used to apply an upward-turning elastic force to the flip cover (2), so that the flip cover (2) covers the opening (12); A holding member (4), the holding member (4) is connected to the frame (1) by sliding up and down, and the upper end of the holding member (4) is used to connect to the drone; the lower end of the holding member (4) is connected to a pulling rope (5), and the end of the pulling rope (5) away from the holding member (4) is connected to a position of the flip cover (2) that deviates from the rotation center; Pull the holding member (4) upwards, the holding member (4) slides upwards and drives the pulling rope (5) to pull the flip cover (2) downwards to open the opening (12); continue to pull the holding member (4) upwards, the pulling rope (5) or the holding member (4) pulls up the frame (1); The flip cover (2) comprises a cover-blocking section (21) located on one side of the rotation center and a force-applying section (22) located on the other side of the rotation center; One end of the elastic member (3) is connected to the force-applying section (22), and the other end is connected to the frame (1); One end of the pulling rope (5) away from the holding member (4) is connected to the force applying section (22); The groove wall on one side of the hanging groove (11) is defined as a first groove wall (13), the groove wall on the other side of the hanging groove (11) is defined as a second groove wall (14), and the direction perpendicular to the first groove wall (13) and the second groove wall (14) is defined as a first direction; An adjustment plate (61) movable along the first direction is provided in the hanging groove (11), and a spacing between the adjustment plate (61) and the first groove wall (13) or the second groove wall (14) forms a positioning groove (15) for positioning the cross arm; The holding member (4) is arranged on the outside of the second groove wall (14); the first groove wall (13) is threadedly assembled with an adjusting screw (62); the threaded end of the adjusting screw (62) is rotatably connected to the adjusting plate (61); The upper end of the adjustment plate (61) is slidably guided and connected to the top wall of the hanging groove (11).

2. The hanging rope device for power transmission line maintenance according to claim 1, characterized in that: The transmission line maintenance hanging rope device comprises a guide member (7), the upper end of the guide member (7) is connected to the lower end of the adjustment plate (61), and the lower end of the guide member (7) extends downward and away from the second slot wall (14).

3. The hanging rope device for power transmission line maintenance according to claim 2, characterized in that: The first groove wall (13) is provided with an avoidance hole (131) for the lower end of the guide member (7) to pass through.

4. The hanging rope device for power transmission line maintenance according to claim 1, characterized in that: The frame (1) is provided with a guide hole, the lower end of the holding member (4) is slidably arranged in the guide hole, and the outer side of the holding member (4) is provided with a lower stopper that stops with the lower edge of the guide hole.

5. The hanging rope device for power transmission line maintenance according to claim 4, characterized in that: The holding member (4) comprises a pull rod (41), a first cross rod (42), a second cross rod (45), a first vertical rod (43) and a second vertical rod (44); the middle portion of the first cross rod (42) is fixedly connected to the lower end of the pull rod (41), the upper end of the first vertical rod (43) and the upper end of the second vertical rod (44) are fixedly connected to the first cross rod (42), and the lower end of the first vertical rod (43) and the lower end of the second vertical rod (44) are fixedly connected to the second cross rod (45); The guide hole comprises a first guide hole and a second guide hole, the first vertical rod (43) and the second vertical rod (44) are respectively slidably arranged in the first guide hole and the second guide hole; the second cross rod (45) forms the lower stopper.

6. The hanging rope device for power transmission line maintenance according to claim 4, characterized in that: The upper end of the holding member (4) is connected to a hook (46) with an opening (12) facing downwards. The transmission line maintenance rope hanging device also includes an insulating rope loop, the lower end of the insulating rope loop is used to be hung in the hook (46), and the upper end of the insulating rope loop is used to connect to the drone.

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