Rope hanging device for power transmission line maintenance

Abstract

The invention relates to the technical field of electric power engineering, in particular to a rope hanging device for power transmission line maintenance, which comprises a frame body, a turning cover, an elastic piece and a pulling piece, and is characterized in that the upper part of the frame body is provided with a hanging groove with a downward opening, and the opening is used for a cross arm of a power transmission tower to enter the hanging groove; the flip cover is arranged below the opening and rotatably connected to the lower part of the frame body up and down; the elastic piece is used for applying upward overturning elastic force to the flip cover, and the flip cover keeps a state of covering the lower end of the opening under the elastic force action of the elastic piece; the pulling piece is connected to the frame body in an up-down sliding mode, the upper end of the pulling piece is used for being connected with the unmanned aerial vehicle, the lower end of the pulling piece is connected with a traction rope, and the end, away from the pulling piece, of the traction rope is connected to the position, deviating from the rotating center, of the turning cover; when the unmanned aerial vehicle pulls the frame body upwards, the pulling piece and the traction rope pull the flip cover to be in an open state, the unmanned aerial vehicle directly lifts the frame body to the position above the cross arm and then falls down the frame body, the hanging groove can be hung on the cross arm, the flip cover can be automatically closed, operation is easy, 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] In order to ensure the normal operation of the transmission line, it is necessary to inspect and maintain it. High-voltage transmission line towers are generally equipped with foot spikes for workers on the tower to climb up and down the tower. When workers are climbing the tower, there is no safety protection, and it is easy to fall from height.

[0003] The Chinese utility model patent with authorization announcement number CN214344037U discloses an anti-fall rope for power transmission line maintenance, including a rope hanging device and a rope body connected to the lower end of the rope hanging device, the rope hanging device includes a mounting plate and a hook fixed on the mounting plate, the hook includes a vertically arranged hook rod and a semicircular hook body, the lower end of the hook rod is fixedly connected to the mounting plate, the hook body is open downward, one side of the hook rod is hinged with a movable plate for closing the opening, the end of the movable plate away from the hook rod is provided with a guide plate, the guide plate is inclined, and the guide plate extends outside the hook portion, the hook rod 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. When in use, the hanging rope device is raised to the bottom of the cross arm of the transmission tower by a drone, so that the part of the guide plate extending outside the hook is located under the cross arm, and then the hanging rope device is lifted upward by the drone. 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 turns downward, thereby opening the opening of the hook part, and 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 to above the cross arm, and 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 one side of the crossarm so that the end of the guide plate moves under the crossarm, and 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 and 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 when needed and the hanging rope efficiency is low.

[0006] In order to solve the above technical problems, the object 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 groove, and the hanging groove has a downward opening, and the opening is used for a cross arm of the transmission tower to enter the hanging groove;

[0008] A flip cover, which is arranged below the opening and is connected to the frame body by vertical rotation;

[0009] An elastic member, the elastic member is 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, wherein the holding member is slidably connected to the frame body up and down, the upper end of the holding member is used to connect the drone, the lower end of the holding member is connected to a pulling rope, and one end of the pulling rope away from the holding member is 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 cover-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 a first groove wall, the groove wall on the other side of the hanging groove is defined as a second groove wall, and the direction perpendicular to the first groove wall and the second groove wall is defined as a first direction;

[0016] An adjustment plate movable along the first direction is arranged 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 equipped 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 slidably guided and connected to the top wall of the hanging groove.

[0019] As a preferred embodiment, the rope hanging device for power transmission line maintenance includes a guide member, the upper end of which is connected to the lower end of the adjustment plate, and the lower end of which 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 flap, 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, and the opening is used for the cross arm of the power transmission tower to enter the hanging groove; the flap is arranged below the opening and is connected to the lower part of the frame by rotation up and down; the elastic member is used to apply an elastic force for flipping upward to the flap, and the flap is kept in a state of covering the lower end of the opening under the elastic force of the elastic member; the holding member is connected to the frame by sliding up and down, the upper end of the holding member is used for connecting a drone, and 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 the side of the flap. The invention relates to a hanging rope device for hanging ropes, which is a kind of hanging rope device for hanging ropes. The hanging rope device is used to hang the hanging rope device for hanging ropes, and the hanging rope device is used to hang the ... BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0029] Figure 3 It is a structural schematic diagram of a pulling member;

[0030] Figure 4 It is a schematic diagram of the connection structure between the adjusting screw and the adjusting plate;

[0031] Figure 5 It is a 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 a front view of the guide;

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

[0035] In the figure, 1, frame, 11, hanging groove, 12, opening, 13, first groove wall, 131, avoidance hole, 132, first threaded hole, 14, second groove wall, 15, positioning groove, 16, second mounting hole, 2, flip cover, 21, cover block section, 22, force application section, 3, elastic member, 4, holding member, 41, pull rod, 42, first cross bar, 43, first vertical rod, 44, second vertical rod, 45, second cross 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 specific implementation of the present invention is further described in detail below in conjunction with 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 orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of 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, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "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 comprises a frame 1, a flap 2, an elastic member 3 and a holding member 4, wherein the upper portion of the frame 1 is provided with a hanging groove 11, the hanging groove 11 having a downward opening 12, the opening 12 being used for the cross arm of the transmission tower to enter the hanging groove 11; the flap 2 is arranged below the opening 12 and is connected to the lower portion of the frame 1 by vertical rotation; the elastic member 3 is used for applying an elastic force for flipping upward to the flap 2, and under the elastic force of the elastic member 3, the flap 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 vertical sliding, the upper end of the holding member 4 is used for connecting a drone, the lower end of the holding member 4 is connected with a pulling rope 5, and one end of the pulling rope 5 away from the holding member 4 is connected to a position of the flap 2 deviating from the rotation center; the holding member 4 is pulled upward, the holding member 4 slides upward and drives the pulling rope 5 to pull the flap 2 to flip downward and open; the holding member 4 is continued to be pulled 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 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 the frame 1 is pulled up, the pulling rope 5 has already opened 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 gravity of the frame 1, the flap 2 remains in the open state; after the drone lifts the frame 1 to the top of 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, the frame 1 is hung on the cross arm and no longer falls, the holding member 4 continues to fall under its own gravity, and after losing the pulling force of the pull rod 41, the pulling rope moves down and releases the flap 2, and 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, and the drone directly lifts the frame 1 to the top of the cross arm and then drops the frame 1 to hang the hanging groove 11 on the cross arm, and the flap 2 can be automatically closed, which is simple to operate and improves the hanging rope efficiency.

[0040] There are many ways to set the flap 2, such as one end of the flap 2 is hinged to the frame 1, the lower end of the pull rope 5 is connected to the end of the flap 2 away from the rotation center, and the upper end of the pull rope 5 is connected to the lower end of the holding member 4 after passing the lower end of the flap 2. When this setting is adopted, the pull rope 5 needs to have a large stroke to flip the flap 2. In this embodiment, the flap 2 includes 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; the elastic member 3 is a tension spring, 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; the end of the pull rope 5 away from the holding member 4 is connected to the force-applying section 22.

[0041] Specifically, the cover section 21 is arranged below the opening 12 to cover the opening 12, so as to prevent the frame 1 from tilting or turning over after the frame 1 is placed on the crossbar by the drone and before the gravity of the operator is applied to the frame 1. The force-applying section 22 and the cover section 21 form a lever structure, and the rotation center of the flip cover 2 forms the fulcrum of the lever structure. The force-applying section 22 and the cover section 21 are arranged at an angle, and the length of the force-applying section 22 is shorter than that of the flip cover 2. When the flip cover 2 is in the covering state, the extension direction of the force-applying section 22 is downward and 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 during the rotation of the flip cover 2 is smaller; 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 is 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 made of aluminum alloy material as a whole, and the hanging groove 11 is square in shape as a whole. The groove wall on one side of the hanging groove 11 is defined as the first groove wall 13, and the groove wall on the other side of the hanging groove 11 is defined as the second groove wall 14. The normal direction of the first groove wall 13 and the second groove wall 14 is the first direction. An adjustment plate 61 that can move along the first direction is provided in the hanging groove 11, and the interval between the adjustment plate 61 and the first groove wall 13 or the interval between the second groove wall 14 forms a positioning groove 15 for positioning the cross arm. Transmission towers of different specifications have cross arms of different sizes. In this embodiment, before using the drone to lift the frame 1, the position of the adjustment plate 61 is adjusted according to the cross arm specifications of the transmission tower, so that the groove width of the positioning groove 15 matches the cross arm specifications, thereby ensuring the stability of the frame 1 hanging on the cross arm and ensuring the safety of the construction.

[0043] Furthermore, in order to facilitate the adjustment of the adjustment plate 61, in this embodiment, the holding member 4 is arranged on the outer side 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 132, and the axial direction of the first threaded hole 132 is arranged along the first direction. The adjustment screw 62 is threadedly assembled in the first threaded hole 132, and the adjustment screw 62 is rotated, and the adjustment screw 62 can move along the axial direction of the first threaded hole 132, so that the adjustment screw 62 drives the adjustment plate 61 to move along the first direction. Figure 5 As shown, the outer side of the threaded end of the adjusting screw 62 is provided with an annular groove 621, as shown in FIG. 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 arranged in the first mounting hole 611, a second threaded hole 612 is provided in the hole wall of the first mounting hole 611, the second threaded hole 612 extends along the radial direction of the adjustment screw 62, a locking screw is assembled in the second threaded hole 612, the locking screw is rotated, the threaded end of the locking screw is inserted into the annular groove 621, and the two sides of the locking screw are blocked by the two side walls of the annular groove 621, so that the adjustment screw 62 can rotate relative to the adjustment plate 61, but cannot move along its own axial direction relative to the adjustment plate 61. In this embodiment, in order to facilitate the operator to rotate the adjustment screw 62, the adjustment screw 62 is 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 hanging rope device for power transmission line maintenance includes 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 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 the bending section is connected to the lower end of the adjustment plate 61.

[0046] In order to avoid interference between the guide member 7 and the first groove wall 13 when the adjustment plate 61 is moved, in this embodiment, the first groove wall 13 is provided with an avoidance hole 131 for the lower end of the guide 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 arranged in the guide hole, and a lower stopper is provided on the outer side of the holding member 4 to stop the lower edge of the guide hole. The provision of the guide hole ensures the stability of the up and down movement of the holding member 4. In this embodiment, the frame 1 is pulled upward by pulling the rope 5, and the provision of the lower stopper can prevent the frame 1 from being separated from the holding member 4 when the rope breaks. In order 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 part, in this embodiment, an upper stopper is provided on the outer side of the holding member 4 to stop 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] In order to facilitate the connection of the drone to the hanging rope device for power line maintenance 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, 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 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 to move downward, and the insulating rope loop can be detached from the slot hook 46. In addition, in order to facilitate the hanging of the anti-fall rope at the lower end of the hanging rope device for power line maintenance, 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 with 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, and the pulling rope 5 can pull the flip cover 2 to flip down and open; thereafter, the pulling member 4 is continued to be pulled upward by the drone, and the pulling rope 5 or the holding member 4 pulls up the frame 1, and the frame 1 is Under the action of gravity, the flap 2 remains in the open state; after the drone lifts the frame 1 to the top of the crossarm, the position of the drone is adjusted so that the opening 12 is opposite to the crossarm, and then the drone is operated to fall, the frame 1 is lowered, and the crossarm 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 crossarm 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 flap 2, and the flap 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 comprises a frame 1, a flap 2, an elastic member 3 and a holding member 4, the hanging groove 11 of the frame 1 has a downward opening 12, the flap 2 is arranged below the opening 12 and is connected to the lower part of the frame 1 by rotation up and down; the elastic member 3 is used to apply an elastic force to flip the flap 2 upward, and under the elastic force of the elastic member 3, the flap 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, 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 flap 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 flap 2 to an open state, the drone directly lifts the frame 1 to the top of the cross arm and then drops the frame 1 to hang the hanging groove 11 on the cross arm, and can automatically close the flap 2, the operation is simple, and the hanging rope efficiency is improved.

[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 body (1), wherein the upper portion of the frame body (1) is provided with a hanging groove (11), the hanging groove (11) having a downward opening (12), the opening (12) being 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 a manner of rotating up and down; An elastic member (3), the elastic member (3) being used to apply an elastic force to the flip cover (2) to flip upward, so that the flip cover (2) covers the opening (12); A holding member (4), the holding member (4) is slidably connected to the frame (1) up and down, and the upper end of the holding member (4) is used to connect 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; The holding member (4) is pulled upwards, and the holding member (4) slides upwards and drives the pulling rope (5) to pull the flip cover (2) to flip downwards to open the opening (12); the holding member (4) is continued to be pulled upwards, and the pulling rope (5) or the holding member (4) pulls up the frame (1).

2. The hanging rope device for power transmission line maintenance according to claim 1, characterized in that: 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).

3. The hanging rope device for power transmission line maintenance according to claim 1, characterized in that: 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.

4. The hanging rope device for power transmission line maintenance according to claim 3, characterized in that: The holding member (4) is arranged on the outer side 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).

5. The hanging rope device for power transmission line maintenance according to claim 4, characterized in that: The upper end of the adjustment plate (61) is slidably guided and connected to the top wall of the hanging groove (11).

6. The hanging rope device for power transmission line maintenance according to claim 4, characterized in that: The transmission line maintenance rope hanging 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).

7. The hanging rope device for power transmission line maintenance according to claim 6, 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.

8. 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 which stops with the lower edge of the guide hole.

9. The hanging rope device for power transmission line maintenance according to claim 8, 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.

10. The hanging rope device for power transmission line maintenance according to claim 8, characterized in that: The upper end of the holding member (4) is connected to a hook (46) with an opening (12) facing downwards, and the rope hanging device for power transmission line maintenance 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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