Movable hanger with self-locking function for high-altitude operation lifting device and using method of movable hanger

Abstract

The invention relates to the technical field of high-altitude operation auxiliary devices in the power industry, and provides a movable hanger with a self-locking function for a high-altitude operation lifting device and a use method of the movable hanger, a hook has a locking safety function, and when the hanger is hung on a wire, the hook and a locking rod of the hanger form a closed space, so that the hanger is prevented from falling off, and the operation safety is greatly improved; the suspension bracket is connected with the two hooks respectively, so that when high-place operation is carried out, a static rope for the lifting device and an anti-falling backup protection rope for high-place operation personnel are used separately, and the safety and the reliability of the high-place operation are effectively improved; the connecting holes are formed in the lower ends of the two hooks on the hanging frame respectively, when high-place operation is carried out, a static rope for a lifting device and an anti-falling backup protection rope for high-place operation personnel can be tied to the connecting holes through one rope head, the use length of the rope only needs to be matched with the height of an operation point, and the requirement can be met; compared with an operation method of throwing and hanging a traction rope by using an unmanned aerial vehicle, the length of the rope used for operation can be reduced by half.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary tools for high-altitude operations in the electric power industry, and in particular to a movable self-locking hanging bracket of a high-altitude operation lifting device and a use method thereof. Background Art

[0002] In the operation, maintenance and construction of power grids, aerial work is an inevitable part, including the installation, maintenance and troubleshooting of power equipment. Aerial work lifting devices are usually used to transport working tools or workers, and this lifting device plays an important role. It can help workers install, repair and maintain units and power transmission and transformation equipment of important power facilities such as power plants, substations and transmission lines.

[0003] Application No.: 2014208345621 discloses a high-altitude work pulley, in particular, a transmission line anti-falling overhead line pulley, the structural key points of which are that it includes an overhead line pulley frame and a rope pulley frame, the overhead line pulley frame includes an open frame, an upper pulley and a closed member, the closed pin is a long structure, located outside the open side plate of the inverted U-shaped frame, a guide groove is arranged in the middle of the closed pin along the longitudinal axis, the wheel shaft end of the upper pulley and the limit bolt are located in the guide groove of the closed pin, one end of the compression spring is connected to the wheel shaft end of the upper pulley, and the other end is fixedly connected to the rear end of the closed pin, the operating pull ring is located at the rear end of the closed pin, and is integrally constructed with the closed pin, under normal conditions, the compression spring is in a pre-tightened state, and the closed pin just closes the entire opening of the open frame. The advantages are: avoiding the situation of bouncing and falling off, fully adapting to the needs of long-distance high-altitude operations of overhead lines, easy operation, high safety, and good reliability.

[0004] Although the above technical solution solves the problem that the wiring pulley is easy to fall off the overhead line, it still has the following disadvantages: 1. It is easily restricted by the work site. During use, the pulley will move in the sag direction of the conductor, affecting the work of the operators. When the work site is at a higher position, it is difficult to install it through the insulating operating rod; 2. The rope is inconvenient to disassemble and assemble, and cannot be removed directly from the pulley; 3. The position of the pulley is relatively fixed, and the pull rope is easy to get knotted; 4. The installation is difficult. It is installed through the insulating operating rod. Once the installation distance is far, the operating skills of the operators are required to be high.

[0005] At present, there are two main ways of using lifting devices for high-altitude operations in the power industry: one is to use a drone to drop a traction rope onto the equipment that needs to be operated, and use the traction rope to carry the static rope used for the lifting device and the backup protection rope for personal fall protection; the main problem of using this operation method is that the rope used will rub against the equipment, which will reduce the performance of the rope, and the length of the rope used needs to be twice the height of the operating equipment, which increases the weight of the rope and brings inconvenience to the operation.

[0006] Another method is to use a drone to carry a bracket with a static rope for a lifting device, and the drone hangs the bracket on the operating equipment. Then, the drone carries another bracket with a backup protection rope for workers to prevent falling, and the drone hangs the bracket on the operating equipment. The main problem of this operation method is that the bracket used for the lifting device operation requires the drone to fly twice for installation and twice for removal, and the bracket does not have the function of moving and self-locking anti-falling insurance when hung on the operating equipment. Some operations also require workers to go to the lifting device, climb up the ground wire and walk to the operating point to carry out the operation, which brings many inconveniences and possible risks of falling to high-altitude operations.

[0007] Based on this, the present invention provides a movable self-locking bracket for an aerial work lifting device and a use method thereof, so as to reduce the difficulty of bracket installation and improve the bracket installation efficiency. Summary of the invention

[0008] The purpose of the present invention is to solve the deficiencies of the prior art and to provide a movable self-locking bracket for an aerial work lifting device and a method of using the same, so as to reduce the difficulty of bracket installation during aerial work and improve the bracket installation efficiency.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A movable self-locking hanging bracket of an aerial work lifting device comprises: a hanging bracket, a hook fixedly connected to the bottom of the hanging bracket, a movable fixing bracket respectively arranged on both sides of the hook, and a hanging mechanism arranged on the top of the hanging bracket;

[0011] The top of the hook is fixedly connected to the bottom of the hanging bracket. The hook is C-shaped. A locking rod is hinged on the top of the hook opening. The locking rod can rotate along the top of the hook opening. An arc-shaped extension portion is provided on the upper end of the locking rod.

[0012] Preferably, the hooks are provided with two groups, a mounting groove is provided at the arc-shaped top of the hook, a locking rod is connected in the mounting groove via a rotating shaft, and the length of the locking rod is greater than the opening distance of the hook.

[0013] Preferably, after the arc-shaped extension portion provided on the upper end of the locking rod is rotated into the installation groove, the lower bottom surface of the arc-shaped extension portion is higher than the position where the hook and the wire are engaged.

[0014] Preferably, a counterweight block is provided at the end of the arc-shaped extension portion of the locking rod.

[0015] Preferably, the movable fixed frame comprises: a mounting bracket, a pulley slidably connected to the mounting bracket, a movable fixed pin shaft, and a spring sleeved with the movable fixed pin shaft; the mounting bracket is U-shaped, and sliding grooves are provided on both side walls of the mounting bracket, and the pulley can slide up and down along the sliding grooves, and the pin shafts on both sides of the pulley pass through the sliding grooves provided on the two side walls of the mounting bracket, and the pin shafts on both sides of the pulley are fixedly connected to a movable fixed pin shaft respectively, the movable fixed pin shaft is sleeved with the top of the mounting bracket, and a limit block is provided on the top of the movable fixed pin shaft, and the spring is placed between the movable fixed pin shaft and the mounting bracket; the spring is in a compressed state; the clamping position of the pulley and the wire is lower than the clamping position of the hook and the wire; the distance that the pulley can slide up and down along the sliding groove is greater than the distance between the clamping position of the pulley and the wire and the clamping position of the hook and the wire.

[0016] Preferably, the suspension mechanism is annular.

[0017] Preferably, a connecting hole is provided at the bottom of the hook, and a plurality of weight-reducing grooves are provided on the hook.

[0018] Another object of the present invention is to provide a method for using a movable self-locking bracket of an aerial work lifting device, comprising the following steps:

[0019] S1. Determine whether it is in a drone no-fly zone;

[0020] If it is not in the drone prohibited flying zone, a drone will be used to assist the aerial work lifting device to be mounted on a movable self-locking bracket; if it is in the drone prohibited flying zone, the aerial work personnel will climb to the pole tower to mount the aerial work lifting device on a movable self-locking bracket;

[0021] S2. Connect the hanger and the rope; the ground operator assembles the static rope used for the hanger and the lifting device and the anti-fall protection rope used by the height operator;

[0022] S3. UAV mounting bracket. Ground operators control the UAV to hang the bracket on the working wire. The arc-shaped extension of the locking rod on the bracket is clamped with the wire. Under the pressure of the deadweight of the bracket and the rope, the hook of the bracket and the locking rod form a closed space to prevent the bracket from falling off. At this time, the bottom of the pulley is clamped with the wire, and the top of the hook has a gap with the wire. Ground operators adjust the bracket position by pulling the static rope and the anti-fall protection rope used by high-altitude operators.

[0023] S4. Connect the lifting device. The ground operator installs the static rope on the lifting device and tests the function of the lifting device. At this time, since the lifting device is connected, the pulley slides up along the mounting bracket, and the top of the hook is directly connected to the wire. At this time, the bracket is fastened to the wire.

[0024] S5. Workers working at heights climb up and operate; Workers working at heights wear safety belts and anti-fall protection ropes, ride on the lifting device and operate the lifting equipment to reach the working position;

[0025] S6. Complete the operation and remove the bracket. After the operation is completed, operate the lifting device to return to the ground, and the ground operator operates the drone to remove the bracket.

[0026] Preferably, the aerial work personnel climbing to the pole tower to carry out the aerial work lifting device movable with self-locking hanging bracket hanging comprises the following steps:

[0027] a. Transfer rope installation: A high-altitude operator carries the transfer rope and climbs to the tower to install the transfer rope;

[0028] b. Assemble the bracket and ropes; the ground operator assembles the bracket with the static rope and anti-fall protection rope used for the lifting device, and passes the operating rod and bracket to the operator at height through the transfer rope;

[0029] c. Hang the rack; the operator at height uses the operating lever to hang the rack on the working conductor, and the arc-shaped extension of the locking rod on the rack is clamped with the conductor. Under the pressure of the deadweight of the rack and the rope, the hook of the rack and the locking rod form a closed space to prevent the rack from falling off; at this time, the bottom of the pulley is clamped with the wire, and a gap is left between the top of the hook and the wire. The ground operator pulls the static rope and the anti-fall protection rope used by the operator at height to pull the rope on the rack to adjust the rack to the vicinity of the working point;

[0030] d. Connect the lifting device; the ground operator installs the static rope on the lifting device and tests the function of the lifting device; at this time, since the lifting device is connected, the pulley slides up along the mounting bracket, and the top of the hook is directly connected with the wire. At this time, the bracket is fastened to the wire;

[0031] e. Workers working at heights climb up to perform operations; Workers working at heights wear safety belts and anti-fall protection ropes, ride on the lifting device and operate the lifting equipment to reach the working position;

[0032] f. Complete the operation and remove the bracket. After the operation is completed, operate the lifting device to return to the ground, and the ground workers will pull the bracket back to the vicinity of the pole tower. The high-altitude workers will use the operating lever to remove the bracket, and use the transfer rope to cooperate with the ground workers to put the bracket back to the ground. The high-altitude workers will carry the transfer rope back to the ground along the pole tower.

[0033] Preferably, in step S3, when the drone is mounting the hanger, a hook that can be controlled by remote control is carried on the drone to first hook the hanger mechanism, and the ground operator operates the drone to fly above the working wire and hang the hook on the wire; when the drone removes the hanger, the ground operator operates the drone to fly above the working wire so that the hook hooks the hanger mechanism, and the drone lifts the hanger upwards. At this time, the locking rod and the hook are no longer closed, and the drone is operated to drive the hanger back to the ground.

[0034] The present invention discloses an overhead line maintenance operation method combining a lifting device with a lateral walking device, which has the following beneficial effects.

[0035] The hook of the present invention has a locking safety function. When the hook is hung on the wire, the hook of the hanger and the locking rod form a closed space to prevent the hanger from falling off, which greatly improves the safety of the operation. The suspension bracket is connected to the two hooks respectively. When working at height, the static rope used by the lifting device and the backup protection rope for the workers at height are used separately, which effectively improves the safety and reliability of the work at height. The lower ends of the two hooks on the hanger are respectively provided with connecting holes. When working at height, the static rope used by the lifting device and the backup protection rope for the workers at height can be tied to the connecting hole with one rope head. The length of the rope only needs to be adapted to the height of the operation point to meet the requirements. Compared with the operation method of using a drone to throw and hang a traction rope, the length of the rope used in the operation can be reduced by half.

[0036] When the present invention cooperates with the installation of the lifting device, such as using a drone, it only needs to fly twice to complete the installation and removal operations. Compared with the current operation method, the operation steps of the drone operation can be reduced by two times; the invented bracket can be installed and removed by using an operating rod. This method is easy to operate, flexible to move, and not restricted by the working environment. Compared with the traditional operation method, it can reduce the process of workers working at heights walking on the ground wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The present invention is a schematic diagram of the overall structure of a movable self-locking bracket of an aerial work lifting device.

[0038] Figure 2 The present invention is a schematic side view of the overall structure of a movable self-locking hanger of an aerial work lifting device.

[0039] Figure 3 It is a front view schematic diagram of the overall structure of a movable self-locking hanger of the aerial work lifting device of the present invention.

[0040] Figure 4 The present invention is a flow chart of a method for using a movable self-locking bracket of an aerial work lifting device in Embodiment 2 of the present invention.

[0041] In the attached drawings: 1-suspension bracket; 2-suspension mechanism; 3-hook; 4-locking rod; 5-movable fixed frame; 6-pulley; 7-spring; 8-movable fixed pin; 9-arc-shaped extension; 10-pin seat; 11-connecting hole; 12-installation slot; 13-counterweight block. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0044] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0045] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0046] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] Example 1

[0048] Reference Figure 1A movable self-locking bracket of an aerial work lifting device comprises: a suspension bracket 1, a hook 3 fixedly connected to the bottom of the suspension bracket 1, a movable fixing bracket 5 respectively arranged on both sides of the hook 3, and a suspension mechanism 2 arranged on the top of the suspension bracket 1;

[0049] The top of the hook 3 is fixedly connected to the bottom of the suspension bracket 1. The hook 3 is C-shaped. A locking rod 4 is hinged at the top of the opening of the hook 3. The locking rod 4 can rotate along the top of the opening of the hook 3. An arc-shaped extension part 9 is provided at the upper end of the locking rod 4.

[0050] like Figure 1 and 3 As shown, preferably, in this embodiment, two groups of hooks 3 are provided, and a mounting groove 12 is provided at the arc-shaped portion of the top of the hook 3. The locking rod 4 is connected to the mounting groove 12 through a rotating shaft. The length of the locking rod 4 is greater than the opening distance of the hook 3, and the rotating shaft is connected to the hook 3 through a latch seat 10. Preferably, in this embodiment, after the arc-shaped extension 9 provided at the upper end of the locking rod 4 is rotated into the mounting groove 12, the bottom surface of the arc-shaped extension 9 is higher than the position where the hook 3 and the wire are clamped. Preferably, in this embodiment, a counterweight 13 is provided at the end of the arc-shaped extension 9 of the locking rod 4. When the hook 3 is not connected to the wire, the locking rod 4 is separated from the hook 3 under gravity. The lower part of the locking rod 4 is a straight rod, and the top is an arc-shaped extension part 9. The lower straight rod has a guiding function. It is only necessary to place the locking rod 4 above the wire, close to the wire, and hang the hook 3 on the wire. The arc-shaped extension part 9 of the locking rod 4 rotates downward under the pressure of the deadweight of the hanger and the rope, and the straight rod falls and locks automatically, and the hook 3 of the hanger and the locking rod 4 form a closed space.

[0051] Preferably, in this embodiment, a connecting hole 11 is provided at the bottom of the hook 3 , and a weight-reducing groove is provided on the hook 3 .

[0052] In this embodiment, two hooks 3 are provided, and connecting holes 11 are respectively provided at the bottom of the two hooks 3, one connecting hole 11 is used to connect a static rope, and the other is used to connect a backup protection rope for workers at heights to prevent falling; when working at heights, the static rope for the lifting device and the backup protection rope for workers at heights to prevent falling are used separately, which effectively improves the safety and reliability of working at heights; the connecting holes 11 are respectively provided at the lower ends of the two hooks 3 on the bracket, when working at heights, the static rope for the lifting device and the backup protection rope for workers at heights to prevent falling can be tied to the connecting hole 11 with one rope head, and the use length of the rope only needs to be adapted to the height of the working point to meet the requirements. Compared with the method of using a drone to throw and hang a traction rope, the length of the rope used in the operation can be reduced by half.

[0053] like Figure 2As shown, as preferably, in this embodiment, the movable fixed frame 5 includes: a mounting bracket, a pulley 6 slidably connected to the mounting bracket, a movable fixed pin shaft 8, and a spring 7 sleeved with the movable fixed pin shaft 8; the mounting bracket is U-shaped, and a slide groove is provided on the two side walls of the mounting bracket, the pulley 6 can slide up and down along the slide groove, and the pin shafts on both sides of the pulley 6 pass through the slide grooves provided on the two side walls of the mounting bracket, and the pin shafts on both sides of the pulley 6 are fixedly connected with a movable fixed pin shaft 8 respectively, the movable fixed pin shaft 8 is sleeved on the top of the mounting bracket, and a limit block is provided on the top of the movable fixed pin shaft 8, and the spring 7 is placed between the movable fixed pin shaft 8 and the mounting bracket; the spring 7 is in a compressed state; the position where the pulley 6 is clamped with the wire is lower than the position where the hook 3 is clamped with the wire; the distance that the pulley 6 can slide up and down along the slide groove is greater than the distance where the pulley 6 is clamped with the wire is lower than the distance where the hook 3 is clamped with the wire. In this embodiment, when only the movable self-locking hanger of the aerial work lifting device is hung on the wire with the auxiliary rope, the bottom of the pulley 6 is engaged with the wire, and a gap is left between the top of the hook 3 and the wire. The ground workers pull the rope on the hanger by pulling the static rope and the anti-fall protection rope used by the height workers to adjust the hanger to the vicinity of the work point. When the lifting device is connected, the pulley 6 slides up along the mounting bracket, and the top of the hook 3 is directly engaged with the wire. At this time, the hanger is fastened to the wire.

[0054] Example 2

[0055] Please refer to Figure 4 Based on Example 1, this embodiment provides a method for using a movable self-locking bracket of an aerial work lifting device, comprising the following steps:

[0056] S1. Determine whether it is in a drone no-fly zone;

[0057] If it is not in the drone prohibited flying zone, a drone will be used to assist the aerial work lifting device to be mounted on a movable self-locking bracket; if it is in the drone prohibited flying zone, the aerial work personnel will climb to the pole tower to mount the aerial work lifting device on a movable self-locking bracket;

[0058] S2. Connect the hanger and the rope; the ground operator assembles the static rope used for the hanger and the lifting device and the anti-fall protection rope used by the height operator;

[0059] S3, the drone is mounted on the rack; the ground operator controls the drone to hang the rack on the working wire, the arc-shaped extension part 9 of the locking rod 4 on the rack is clamped with the wire, and the arc-shaped extension part 9 is pressed by the deadweight of the rack and the rope, and the hook 3 of the rack and the locking rod 4 form a closed space to prevent the rack from falling off; at this time, the bottom of the pulley 6 is clamped with the wire, and the top of the hook 3 leaves a gap with the wire. The ground operator adjusts the position of the rack by pulling the static rope and the anti-fall protection rope used by the high-altitude operators;

[0060] Preferably, in step S3 of the present embodiment, when the drone is mounted with a hanger, a hook that can be controlled by remote control is carried on the drone to first hook the hanger mechanism 2, and the ground operator operates the drone to fly above the working wire and hang the hook 3 on the wire; when the drone removes the hanger, the ground operator operates the drone to fly above the working wire so that the hook hooks the hanger mechanism 2, and the drone lifts the hanger upward. At this time, the locking rod 4 and the hook 3 are no longer closed, and the drone is operated to drive the hanger back to the ground.

[0061] S4, connect the lifting device; the ground operator installs the static rope on the lifting device and tests the function of the lifting device; at this time, since the lifting device is connected, the pulley 6 slides up along the mounting bracket, and the top of the hook 3 is directly connected with the wire, and the bracket is fastened to the wire;

[0062] S5. Workers working at heights climb up and operate; Workers working at heights wear safety belts and anti-fall protection ropes, ride on the lifting device and operate the lifting equipment to reach the working position;

[0063] S6. Complete the operation and remove the bracket. After the operation is completed, operate the lifting device to return to the ground, and the ground operator will operate the drone to remove the bracket. This method only requires the drone to fly once for installation and once for removal to complete the operation. Compared with the current operation method, it can reduce the operation steps of the drone to operate twice.

[0064] Example 3

[0065] Based on Embodiments 1 and 2, this embodiment provides a method for a high-altitude worker to climb to a pole tower to hang a movable self-locking hanger of a high-altitude work lifting device, including the following steps:

[0066] a. Transfer rope installation: A high-altitude operator carries the transfer rope and climbs to the tower to install the transfer rope;

[0067] b. Assemble the bracket and ropes; the ground operator assembles the bracket with the static rope and anti-fall protection rope used for the lifting device, and passes the operating rod and bracket to the operator at height through the transfer rope;

[0068] c. Hanging the rack; the operator at height uses the operating lever to hang the rack on the working conductor, and the arc-shaped extension part 9 of the locking rod 4 on the rack is clamped with the conductor. Under the pressure of the deadweight of the rack and the rope, the hook 3 of the rack and the locking rod 4 form a closed space to prevent the rack from falling off; at this time, the bottom of the pulley 6 is clamped with the conductor, and a gap is left between the top of the hook 3 and the conductor. The ground operator pulls the rope on the rack by pulling the static rope and the anti-fall protection rope used by the operator at height to adjust the rack to the vicinity of the working point;

[0069] d. Connect the lifting device; the ground operator installs the static rope on the lifting device and tests the function of the lifting device; at this time, since the lifting device is connected, the pulley 6 slides up along the mounting bracket, and the top of the hook 3 is directly connected to the wire. At this time, the bracket is fastened to the wire;

[0070] e. Workers working at heights climb up to perform operations; Workers working at heights wear safety belts and anti-fall protection ropes, ride on the lifting device and operate the lifting equipment to reach the working position;

[0071] f. Complete the operation and remove the rack; after the operation is completed, operate the lifting device to return to the ground, the ground operator pulls the rack back to the vicinity of the pole tower, and the high-altitude operator uses the operating rod to remove the rack, and uses the transmission rope to cooperate with the ground operator to put the rack back to the ground. The high-altitude operator carries the transmission rope and returns to the ground along the pole tower. This method is easy to operate, flexible to move, and not limited by the working environment. Compared with the traditional operation method, it can reduce the process of high-altitude operators walking on the ground wire.

[0072] The above are only preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be a substitution of a part of the structure, device, method step, or a complete technical solution. Any equivalent replacement or change according to the technical solution and the inventive concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A movable self-locking bracket of an aerial work lifting device, characterized in that: include: A hanging bracket, a hook fixedly connected to the bottom of the hanging bracket, movable fixing frames respectively arranged on both sides of the hook, and a hanging mechanism arranged on the top of the hanging bracket; The top of the hook is fixedly connected to the bottom of the hanging bracket. The hook is C-shaped. A locking rod is hinged on the top of the hook opening. The locking rod can rotate along the top of the hook opening. An arc-shaped extension portion is provided on the upper end of the locking rod.

2. The movable self-locking bracket of the aerial work lifting device according to claim 1 is characterized in that: The hooks are provided with two groups, and a mounting groove is provided at the arc-shaped portion of the top of the hook. A locking rod is connected in the mounting groove via a rotating shaft, and the length of the locking rod is greater than the opening distance of the hook.

3. The movable self-locking bracket of the aerial work lifting device according to claim 2 is characterized in that: After the arc-shaped extension portion provided at the upper end of the locking rod is rotated into the installation groove, the lower bottom surface of the arc-shaped extension portion is higher than the position where the hook and the wire are clamped.

4. The movable self-locking bracket of the aerial work lifting device according to claim 1 or 3, characterized in that: A counterweight block is arranged at the end of the arc-shaped extension portion of the locking rod.

5. The movable self-locking bracket of the aerial work lifting device according to claim 1 is characterized in that: The movable fixed frame comprises: a mounting bracket, a pulley slidably connected to the mounting bracket, a movable fixed pin shaft, and a spring sleeved with the movable fixed pin shaft; the mounting bracket is U-shaped, and sliding grooves are provided on both side walls of the mounting bracket, and the pulley can slide up and down along the sliding grooves, and the pin shafts on both sides of the pulley pass through the sliding grooves provided on the two side walls of the mounting bracket, and the pin shafts on both sides of the pulley are fixedly connected to a movable fixed pin shaft respectively, the movable fixed pin shaft is sleeved with the top of the mounting bracket, and a limit block is provided on the top of the movable fixed pin shaft, and the spring is placed between the movable fixed pin shaft and the mounting bracket; the spring is in a compressed state; the clamping position of the pulley and the wire is lower than the clamping position of the hook and the wire; the distance that the pulley can slide up and down along the sliding groove is greater than the distance between the clamping position of the pulley and the wire and the clamping position of the hook and the wire.

6. The movable self-locking bracket of the aerial work lifting device according to claim 1 is characterized in that: The suspension mechanism is ring-shaped.

7. The movable self-locking bracket of the aerial work lifting device according to claim 1 is characterized in that: A connecting hole is provided at the bottom of the hook, and a plurality of weight-reducing grooves are provided on the hook.

8. A method for using a movable self-locking bracket for an aerial work lifting device, using the movable self-locking bracket for an aerial work lifting device according to any one of claims 1 to 7, characterized in that: The steps include: S1. Determine whether it is in a drone no-fly zone; If it is not in the drone prohibited flying zone, a drone will be used to assist the aerial work lifting device to be mounted on a movable self-locking bracket; if it is in the drone prohibited flying zone, the aerial work personnel will climb to the pole tower to mount the aerial work lifting device on a movable self-locking bracket; S2. Connect the hanger and the rope; the ground operator assembles the static rope used for the hanger and the lifting device and the anti-fall protection rope used by the height operator; S3. UAV mounting bracket. Ground operators control the UAV to hang the bracket on the working wire. The arc-shaped extension of the locking rod on the bracket is clamped with the wire. Under the pressure of the deadweight of the bracket and the rope, the hook of the bracket and the locking rod form a closed space to prevent the bracket from falling off. At this time, the bottom of the pulley is clamped with the wire, and the top of the hook has a gap with the wire. Ground operators adjust the bracket position by pulling the static rope and the anti-fall protection rope used by high-altitude operators. S4. Connect the lifting device. The ground operator installs the static rope on the lifting device and tests the function of the lifting device. At this time, since the lifting device is connected, the pulley slides up along the mounting bracket, and the top of the hook is directly connected to the wire. At this time, the bracket is fastened to the wire. S5. Workers working at heights climb up and operate; Workers working at heights wear safety belts and anti-fall protection ropes, ride on the lifting device and operate the lifting equipment to reach the working position; S6. Complete the operation and remove the bracket. After the operation is completed, operate the lifting device to return to the ground, and the ground operator operates the drone to remove the bracket.

9. The method for using the movable self-locking bracket of the aerial work lifting device according to claim 8, characterized in that: The high-altitude workers climb to the pole tower to hang the movable self-locking bracket of the high-altitude work lifting device, which includes the following steps: a. Transfer rope installation: A high-altitude operator carries the transfer rope and climbs to the tower to install the transfer rope; b. Assemble the bracket and ropes; the ground operator assembles the bracket with the static rope and anti-fall protection rope used for the lifting device, and passes the operating rod and bracket to the operator at height through the transfer rope; c. Hang the rack; the operator at height uses the operating lever to hang the rack on the working conductor, and the arc-shaped extension of the locking rod on the rack is clamped with the conductor. Under the pressure of the deadweight of the rack and the rope, the hook of the rack and the locking rod form a closed space to prevent the rack from falling off; at this time, the bottom of the pulley is clamped with the wire, and a gap is left between the top of the hook and the wire. The ground operator pulls the static rope and the anti-fall protection rope used by the operator at height to pull the rope on the rack to adjust the rack to the vicinity of the working point; d. Connect the lifting device; the ground operator installs the static rope on the lifting device and tests the function of the lifting device; at this time, since the lifting device is connected, the pulley slides up along the mounting bracket, and the top of the hook is directly connected with the wire. At this time, the bracket is fastened to the wire; e. Workers working at heights climb up to perform operations; Workers working at heights wear safety belts and anti-fall protection ropes, ride on the lifting device and operate the lifting equipment to reach the working position; f. Complete the operation and remove the rack; After the operation is completed, the lifting device is operated to return to the ground, and the ground workers pull the bracket back to the vicinity of the pole tower. The high-altitude workers use the operating rod to remove the bracket, and use the transfer rope to cooperate with the ground workers to put the bracket back to the ground. The high-altitude workers carry the transfer rope back to the ground along the pole tower.

10. The method for using the movable self-locking bracket of the aerial work lifting device according to claim 8, characterized in that: In step S3, when the drone is mounting the hanger, a hook that can be controlled by remote control is carried on the drone to first hook the hanger mechanism, and the ground operator operates the drone to fly above the working wire and hang the hook on the wire; when the drone removes the hanger, the ground operator operates the drone to fly above the working wire so that the hook hooks the hanger mechanism, and the drone lifts the hanger upward. At this time, the locking rod and the hook are no longer closed, and the drone is operated to drive the hanger back to the ground.

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