Mechanical self-locking wire spacer fitting and unmanned aerial vehicle hoisting installation system thereof

Abstract

The present application relates to the field of power equipment, especially to a mechanical self-locking wire spacer fitting and a UAV hoisting installation system thereof, the spacer fitting comprising a spacer frame body and a wire fixing and clamping device; the wire spacer fitting omits screws and pins, realizes primary self-locking by means of a dead point clamping mechanism, and then realizes secondary locking by means of an independent mechanical locking mechanism, thereby forming double locking protection; the spacer fitting is convenient to install and has high clamping reliability; meanwhile, the UAV hoisting installation system is used in cooperation with the mechanical self-locking wire spacer fitting, drives a locking device to realize driving of the dead point clamping mechanism to complete automatic clamping of the wire, and then can be separated from the fitting itself, thereby avoiding increase of the weight of the fitting and reduction of the influence on the power transmission line.

Description

Technical Field

[0001] This invention relates to the field of power equipment, and in particular to a mechanical self-locking conductor spacer fitting and its UAV hoisting and installation system. Background Technology

[0002] In the operation of overhead transmission lines, in order to limit the spacing between conductors of different phases (or between multiple sub-conductors of the same phase) and reduce the impact of conductor galloping, wind deflection and other factors on the safe operation of transmission lines, it is usually necessary to install spacers between conductors (spacers installed between single conductors of different phases are usually called phase spacers; spacers installed between multiple sub-conductors of the same phase are usually called split conductor spacers).

[0003] Whether it's phase-to-phase spacers or split conductor spacers, there are currently two known spacer hardware solutions that can be installed on UAVs: Option 1: Manually pre-tighten the screws to secure the wire fixing device and install the pins for positioning; after the drone is hoisted into place from the air, the screws need to be loosened and removed manually to complete the clamping and fixing. This option involves many steps, requiring manual high-altitude operation to tighten the screws and pins on the hardware, and the screws and pins are prone to falling and being lost during manual operation.

[0004] The second option involves integrating an electric tightening tool onto the spacer fitting itself. During operation, a drone lifts the spacer with the integrated electric tightening mechanism to the work position, and the screws are tightened using the fitting's built-in electric mechanism to clamp and fix the conductor. This option has a significant drawback: the integrated electric actuator makes the fitting heavy, and once the spacer is installed and fixed to the conductor, it is significantly affected by wind disturbances, which could adversely impact the safety of the transmission line operation. Summary of the Invention

[0005] Based on the above problems, the purpose of this invention is to provide a mechanically self-locking conductor spacer fitting and its UAV hoisting and installation system. The conductor spacer fitting achieves primary self-locking through a dead-point mechanism, and then a secondary locking is achieved by an independent mechanical locking mechanism for the top clamping rod. The UAV hoisting and installation system is equipped with a jacking drive mechanism, which drives the spacer fitting through the dead-point mechanism to clamp and lock the conductor. The conductor clamping and fixing can be completed without manual high-altitude screw tightening. After the spacer fitting and conductor are clamped and fixed, the jacking drive mechanism can automatically separate from the spacer fitting along with the UAV.

[0006] The present invention adopts the following technical solution: This invention provides a mechanically self-locking conductor spacer fitting, characterized in that it includes: A spacer frame, which is used to support and space adjacent conductors; A wire fixing clamping device is used to clamp and fix wires. Multiple wire fixing clamping devices are fixed to the spacer frame. Each device includes a fixed jaw, a movable jaw, and a jaw seat. The fixed jaw and the movable jaw cooperate to clamp the wire. The fixed jaw is fixedly connected to the spacer frame, and the jaw seat is fixedly connected to the spacer frame. The jaw seat is provided with a dead-point clamping mechanism that drives the movable jaw to open or close.

[0007] Preferably, the over-dead-point clamping mechanism includes a drive arm, a gripper arm, and a connecting arm. The upper end of the drive arm is rotatably connected to the gripper seat. The front end of the gripper arm is fixedly connected to the movable gripper, and the rear end is rotatably connected to the gripper seat. The upper end of the connecting arm is rotatably connected to the gripper arm, and the lower end is rotatably connected to the drive arm. The front of the connecting arm is provided with a limiting protrusion, and after the drive arm passes the dead point position, the limiting protrusion abuts against the bottom of the gripper arm.

[0008] Preferably, the gripper seat is provided with a mechanical locking mechanism for locking the over-dead-point clamping mechanism.

[0009] Preferably, the mechanical locking mechanism includes a locking hook, the rear end of which is rotatably connected to the drive arm. The locking hook is provided with a guide groove and a barb groove with downward opening from front to back, and the transition connection position between the guide groove and the barb groove is an inclined surface. The locking hook engages with the locking pin, and the locking pin is fixed to the gripper seat.

[0010] Preferably, the grooves of the fixed gripper and the movable gripper are provided with anti-slip rubber pads.

[0011] Preferably, the mechanically self-locking conductor spacer is used to split conductor spacers; the spacer frame is an integral metal frame. The spacer frame includes a crossbeam, and the number of crossbeams is at least one. Each crossbeam is provided with a wire fixing clamping device at both ends. Each of the beam ends is provided with an arc-shaped guide angle, and the arc-shaped guide angle is provided with a hoisting hole.

[0012] Preferably, two adjacent crossbeams are connected by multiple vertical plates; a lower extension bracket is provided on the lowest crossbeam.

[0013] This invention provides a drone hoisting and installation system, used in conjunction with the aforementioned mechanical self-locking conductor spacer fitting for splitting conductor spacing. The system includes an electric release device, a drive locking device, an insulated suspension system, and a limit switch. The upper end of the electric release device is connected to the drone via an insulated rod, and the lower end is connected to the hoisting hole. The drive locking device is connected to the insulated suspension system, the upper end of which is connected to the drone. The drive locking device has two drive ends, which simultaneously move closer or further apart. Each drive end of the drive locking device is equipped with a U-shaped claw, which engages with a support member mounted on the drive arm. The limit switch is mounted on the U-shaped claw, and after the drive arm passes the dead center position, the travel arm of the limit switch contacts the drive arm.

[0014] Preferably, the mechanically self-locking conductor spacer is used for phase-to-phase conductor spacing; the spacer frame is an insulating support, and each end of the spacer frame is provided with a conductor fixing clamping device.

[0015] This invention provides a drone hoisting and installation system, which is used in conjunction with the aforementioned mechanical self-locking conductor spacer hardware for phase-to-phase conductor spacing, including an insulating hanger, a drive locking device, an insulating suspension system, and a limit switch; The insulating hanger is installed and fixed at the bottom of the UAV, and the insulating hanger is connected to the spacer frame through two electrically operated release devices arranged at left and right intervals; There are two drive locking devices, each corresponding to the wire fixing clamping device; the drive locking device is rotatably connected to the insulating hanger, and a U-shaped claw is provided on the drive end of the drive locking device, which abuts and engages with the support member provided on the drive arm. The insulated suspension system includes an insulated rope, the upper end of which is connected to the drone, and a power supply device is installed on the insulated rope. The limit switch is mounted on the U-shaped claw. After the drive arm passes the dead point position, the limit arm of the limit switch contacts the drive arm.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are as follows: (1) The conductor spacer hardware eliminates screws and pins, and relies on the dead point clamping mechanism to achieve first-level self-locking, and then uses an independent mechanical locking mechanism for secondary locking, forming double locking protection; the spacer hardware is easy to install and has high clamping reliability.

[0017] (2) After the drive locking device realizes the automatic clamping of the conductor by the drive dead point clamping mechanism, it can be separated from the hardware itself along with the UAV hoisting and installation system, so as to avoid increasing the weight of the hardware and reduce the impact on the transmission line. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a front view of the mechanical self-locking conductor spacer hardware in Embodiment 1; Figure 2 This is a schematic diagram of the mechanical self-locking conductor spacer hardware in Example 1; Figure 3 This is a schematic diagram of the wire fixing and clamping device in the closed state in Embodiment 1; Figure 4 This is a schematic diagram of the wire fixing clamping device in the open state in Embodiment 1; Figure 5 This is an exploded view of the wire fixing and clamping device in Embodiment 1; Figure 6 This is a schematic diagram showing the positions of the three hinge points A, B, and C on the wire fixing clamping device in Embodiment 1 before they pass the dead point. Figure 7 This is a schematic diagram showing the positions of the three hinge points A, B, and C on the wire fixing clamping device in Embodiment 1 as they cross the dead point. Figure 8 This is a partially enlarged view of the mechanical locking mechanism in Embodiment 1; Figure 9 This is a schematic diagram of the spacer frame in Example 1; Figure 10 This is a schematic diagram of the structure of the spacer bracket extending and connecting spacer rod in the lower part of the spacer frame in Embodiment 1; Figure 11 This is a front view of the UAV hoisting and installation system and the spacer bar hardware hoisting and assembly in Example 1; Figure 12 This is a side view of the UAV hoisting and installation system and the spacer bar hardware hoisting and assembly in Example 1; Figure 13 This is a schematic diagram of a partial structure of the UAV hoisting and installation system and the spacer bar fittings in Example 1; Figure 14 This is a schematic diagram showing the installation and cooperation of the drive locking device and the over-dead-point clamping mechanism in Embodiment 1; Figure 15 This is a schematic diagram of the drive locking device in Embodiment 1; Figure 16 This is a front view of the mechanical self-locking conductor spacer hardware in Embodiment 2; Figure 17 This is a front view of the mechanical self-locking conductor spacer hardware in Embodiment 3; Figure 18 This is a front view of the mechanical self-locking conductor spacer hardware in Example 4; Figure 19 This is a schematic diagram of the mechanical self-locking conductor spacer hardware in Example 5.

[0020] Explanation of reference numerals in the attached drawings: 1. Spacing frame; 101. Crossbeam; 102. Arc-shaped guide angle for conductor; 103. Lifting hole; 104. Vertical plate; 105. Lower hanging extension bracket; 2. Conductor fixing and clamping device; 201. Fixed gripper; 202. Movable gripper; 203. Gripper seat; 204. Over-dead-point clamping mechanism; 204-1. Drive arm; 204-2. Gripper arm; 204-3. Connecting arm; 204-4. Limiting protrusion; 205. Mechanical locking mechanism; 205-1. Locking hook; 205-2 1. Guide groove; 205-3. Barbed groove; 205-4. Inclined surface; 205-5. Locking pin; 206. Anti-slip rubber pad; 3. Electric unhooking device; 301. Insulated lifting rod; 4. Drive locking device; 401. U-shaped claw; 402. Support component; 403. Drive motor; 404. Screw; 405. Movable block; 406. Support rod; 407. Drive block; 5. Insulated suspension system; 501. Insulated lifting rope; 502. Power supply device; 6. Limit switch; 7. Insulated hanger; 8. Unmanned aerial vehicle (UAV). Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] Example 1 like Figure 1 and 2 As shown, this embodiment discloses a mechanically self-locking conductor spacer fitting, including a spacer frame 1 and a conductor fixing and clamping device 2. The spacer frame 1 is used to support and space adjacent conductors. The conductor fixing and clamping device 2 is used to clamp and fix the conductors, and there are multiple conductor fixing and clamping devices 2, all of which are fixed on the spacer frame 1.

[0023] like Figure 3 As shown, the wire fixing clamping device 2 includes a fixed clamp 201, a movable clamp 202, and a clamp seat 203. The fixed clamp 201 and the movable clamp 202 cooperate to clamp the wire. The fixed clamp 201 is fixedly connected to the spacer frame 1, and the clamp seat 203 is fixedly connected to the spacer frame 1. The clamp seat 203 is provided with a dead-point clamping mechanism 204 that drives the movable clamp 202 to open or close.

[0024] like Figure 4 and 5As shown, the over-dead-point clamping mechanism 204 includes a drive arm 204-1, a gripper arm 204-2, and a connecting arm 204-3. The upper end of the drive arm 204-1 is rotatably connected to the gripper seat 203. The front end of the gripper arm 204-2 is fixedly connected to the movable gripper 202, and the rear end is rotatably connected to the gripper seat 203. The upper end of the connecting arm 204-3 is rotatably connected to the gripper arm 204-2, and the lower end is rotatably connected to the drive arm 204-1. A limiting protrusion 204-4 is provided at the front of the connecting arm 204-3. After the drive arm 204-1 passes the dead-point position, the limiting protrusion 204-4 abuts against the bottom of the gripper arm 204-2.

[0025] like Figure 6 and 7 As shown, the rotation point between the drive arm 204-1 and the gripper seat 203 is A, the rotation point between the drive arm 204-1 and the connecting arm 204-3 is C, and the rotation point between the connecting arm 204-3 and the gripper arm 204-2 is B. When the drive arm 204-1 is rotated, it pushes the gripper arm 204-2 to swing with the help of the connecting arm 204-3. When connecting rods AC and BC are collinear, this is the dead point position of the over-dead-point clamping mechanism 204. Continuing to rotate the drive arm 204-1 will enable the over-dead-point clamping mechanism 204 to self-lock, maintaining the clamping force of the fixed gripper 201 and the movable gripper 202 on the wire. At this time, the limiting protrusion 204-4 abuts against the bottom of the gripper arm 204-2.

[0026] It should be noted that a clearance opening is provided at the bottom of the gripper seat 203. When the over-dead-point clamping mechanism 204 is in operation, the upper end of the connecting arm 204-3 will move into the clearance opening.

[0027] like Figure 8 As shown, to further improve the safety and stability of the wire fixing clamping device 2, a mechanical locking mechanism 205 for locking the over-dead-point clamping mechanism 204 is provided on the gripper seat 203. The mechanical locking mechanism 205 includes a locking hook 205-1, the rear end of which is rotatably connected to the drive arm 204-1. The locking hook 205-1 is provided with a guide groove 205-2 with an opening facing downward and a barb groove 205-3 in sequence from front to back. The transition connection position between the guide groove 205-2 and the barb groove 205-3 is an inclined surface 205-4. The locking hook 205-1 engages with the locking pin 205-5, which is fixed to the gripper seat 203. In the unlocked state, the guide groove 205-2 rests against the locking pin 205-5. When the over-dead-point clamping mechanism 204 passes the dead-point position, the locking pin 205-5 slides through the inclined surface 205-4 into the barbed groove 205-3. Thus, after the over-dead-point clamping mechanism 204 passes the dead-point and completes the wire clamping self-locking, the mechanical locking mechanism 205 locks and limits the drive arm 204-1, preventing it from swinging back in the opposite direction, forming a double locking protection.

[0028] In this embodiment, anti-slip rubber pads 206 are provided in the claw grooves of the fixed claw 201 and the movable claw 202.

[0029] like Figure 9 As shown, in this embodiment, a mechanically self-locking conductor spacer is used to split conductor spacers; the spacer frame 1 is an overall metal frame; the spacer frame 1 includes a crossbeam 101, and the number of crossbeams 101 is at least one, with conductor fixing clamping devices 2 provided at both ends of each crossbeam 101. In this embodiment, the same phase conductor is split into four sub-conductors, and the conductor voltage is usually 500KV. Therefore, there are two crossbeams 101 in this embodiment, and the two adjacent crossbeams 101 are connected by multiple vertical plates 104; the vertical plates 104 are fixed to the crossbeams 101 by bolt assemblies.

[0030] In this embodiment, an arc-shaped guide angle 102 is provided on the upper part of each end of the crossbeam 101. When the spacer rod hardware is hoisted by a drone, the spacer rod hardware moves upward from below the guide wire. The arc-shaped guide angle 102 can push the guide wire to both sides of the hardware, so that the hardware can pass through the space between the guide wires.

[0031] In this embodiment, a lifting hole 103 is provided on the arc-shaped guide angle 102. The lifting hole 103 facilitates unseen lifting operations.

[0032] like Figure 10 As shown, a lower extension bracket 105 can also be installed on the bottommost crossbeam 101. The lower extension bracket 105 suspends the same spacer rod hardware through an insulated hanger rod, thus realizing the slinging and extension of the spacer rod hardware.

[0033] Figures 11 to 13 As shown, this embodiment also provides a drone hoisting and installation system, which is used in conjunction with the aforementioned mechanical self-locking conductor spacer hardware. The drone hoisting and installation system includes an electric release hook 3, a drive locking device 4, an insulated suspension system 5, and a limit switch 6.

[0034] The upper end of the insulated suspension system 5 is connected to the drone 8. The insulated suspension system 5 includes an insulated suspension rope 501, on which a power supply device 502 is installed. The power supply device 502 can supply power to the limit switch 6 and the drive locking device 4.

[0035] The upper end of the electric unhooking device 3 is connected to the drone 8 via an insulated rod 301, and the lower end is connected to the hoisting hole 103; the controller controls the action of the electric unhooking device 3 to achieve automatic unhooking. The controller module can be installed on the drone controller so that the drone controller can control the unhooking.

[0036] like Figure 14 As shown, the drive locking device 4 is connected to the insulating suspension rope 501 of the insulating suspension system 5. The drive locking device 4 is located below the crossbeam 101. The wire fixing clamping devices 2 at both ends of the same crossbeam 101 share the same drive locking device 4.

[0037] The drive locking device 4 has two drive ends, each corresponding to one drive locking device 4. The two drive ends of the drive locking device 4 move closer or further apart simultaneously. Each drive end of the drive locking device 4 is equipped with a U-shaped claw 401, which abuts and engages with the support member 402 mounted on the drive arm 204-1. In use, the drive locking device 4 drives the two drive ends to move away from each other, causing the U-shaped claw 401 to engage with the drive arm 204-1, thus forming a single unit with the spacer rod hardware. After the UAV hoists the spacer rod hardware into place, the drive locking device 4 continues to drive the two drive ends to move away from each other, thereby pushing the over-dead-point clamping mechanism 204 past the dead-point position. Then, the drive locking device 4 drives the two drive ends to retract, causing the U-shaped claw 401 to disengage from the support 402 on the drive arm 204-1. In this way, the drive locking device 4 is separated from the entire hardware. After the electric unhooking device 3 is unhooked, the drone 8 lifts the drive locking device 4 off through the insulated suspension system 5.

[0038] like Figure 15 As shown. In this embodiment, the drive locking device 4 is a scissor-type structure. The drive locking device 4 includes a drive motor 403, and a lead screw 404 is provided on the power shaft of the drive motor 403. The lead screw 404 is provided with two threaded sections with opposite directions of rotation. Each threaded section is provided with a movable block 405. Two support rods 406 are rotatably connected to each movable block 405. The support rods 406 on the same movable block 405 are symmetrically arranged about the lead screw 404. The two support rods 406 on the same side are rotatably connected to the drive block 407. The U-shaped claw 401 is fixed on the drive block 407.

[0039] In this embodiment, the support member 402 is a push-pull electromagnet. The body of the push-pull electromagnet is fixed on the drive arm 204-1. The push rod of the push-pull electromagnet extends out, and the U-shaped claw 401 is engaged with the push rod. When the drive end of the drive locking device 4 cannot retract due to an accident, the controller controls the push-pull electromagnet to be energized. After being energized, the push-pull electromagnet generates magnetic force to pull the push rod back. In this way, the U-shaped claw 401 loses its limiting structure, causing the U-shaped claw 401 to be forcibly separated from the support member 402.

[0040] It should be noted that the push-pull electromagnet requires power from the power supply device in the insulated suspension system 5. The push-pull electromagnet is connected to the power supply device via a plug-in terminal. When no one is carrying the insulated suspension system 5 away, the plug-in terminal on the wire can be pulled out, thus leaving the push-pull electromagnet on the drive arm 204-1.

[0041] In this embodiment, a limit switch 6 is installed on the U-shaped gripper 401. When the drive arm 204-1 passes the dead position, the limit switch 6 contacts the drive arm 204-1. The limit switch 6 feeds back an electrical signal to the controller, which then controls the drive motor 403 to stop working. This prevents the wire clamping device 2 from continuing to clamp after clamping the cable, which could damage the system.

[0042] Example 2 like Figure 16 As shown, this embodiment discloses a mechanical self-locking conductor spacer hardware. In this embodiment, there is one crossbeam 101 of the spacer hardware and two conductor fixing clamping devices 2. It is suitable for scenarios where the same phase conductor is split into two sub-conductors, and is generally suitable for conductors with voltages of 110KV and 220KV.

[0043] Example 3 like Figure 17 As shown, this embodiment discloses a mechanical self-locking conductor spacer hardware. In this embodiment, there are three crossbeams 101 of the spacer hardware and six conductor fixing clamping devices 2. It is suitable for scenarios where the same phase conductor is split into six sub-conductors, and is generally suitable for conductors with voltage of 750KV and some 500KV.

[0044] Example 4 like Figure 18 As shown, this embodiment discloses a mechanical self-locking conductor spacer hardware. In this embodiment, there are four crossbeams 101 of the spacer hardware and eight conductor fixing clamping devices 2. It is suitable for scenarios where the same phase conductor is split into eight sub-conductors, and is generally suitable for conductors with voltages of 1000KV UHV AC and 800KV UHV DC.

[0045] Example 5 like Figure 19 As shown, in this embodiment, the mechanically self-locking conductor spacer is used for phase-to-phase conductor spacing; The spacer frame 1 is an insulating support component, and a wire fixing clamping device 2 is provided at each end of the spacer frame 1. The specific structure of the wire fixing clamping device 2 is the same as that in Embodiment 1.

[0046] This embodiment also provides a drone hoisting and installation system, which is compatible with... Figure 19 The mechanical self-locking conductor spacer shown is used in conjunction with the system, which includes an insulating hanger 7, a drive locking device 4, an insulating suspension system 5, and a limit switch 6.

[0047] The insulated suspension system 5 includes an insulated suspension rope 501, the upper end of which is connected to the drone 8. A power supply device 502 is installed on the insulated suspension rope 501. The power supply device 502 can supply power to the limit switch 6 and the drive locking device 4. The structure of the insulated suspension system 5 is the same as that in Embodiment 1.

[0048] An insulated hanger 7 is installed and fixed to the bottom of the drone 8. The insulated hanger 7 is connected to the spacer frame 1 via two electrically operated release devices 3 arranged at intervals on the left and right. The controller controls the operation of the electrically operated release devices 3 to achieve automatic release. The controller module can be installed on the drone controller so that the drone controller can control the release.

[0049] In this embodiment, there are two drive locking devices 4, which correspond to the wire fixing clamping device 2 respectively. The drive locking device 4 is rotatably connected to the insulating hanger 7. The drive end of the drive locking device 4 is provided with a U-shaped claw 401, which abuts and engages with the support member 402 provided on the drive arm 204-1.

[0050] In use, the drive locking device 4 drives a U-shaped claw 401 to engage with the drive arm 204-1. When the U-shaped claw 401 pushes the over-dead-point clamping mechanism 204 past its dead-point position, the drive locking device 4 then drives the U-shaped claw 401 to disengage from the support member 402 on the drive arm 204-1. This separates the drive locking device 4 from the entire fitting. Because the drive locking device 4 is rotatably connected to the insulating hanger 7, it will not fall off. After the electric unhooking device 3 disengages, the drone 8 uses the insulating hanger 7 to lift and detach the drive locking device 4.

[0051] In this embodiment, the drive locking device 4 is also a scissor-type structure, and the main structure is the same as that in Embodiment 1. The difference is that a U-shaped claw 401 is installed on one side of the drive block 407, and the drive block 407 on the other side is rotatably connected to the insulating hanger 7.

[0052] In this embodiment, the support member 402 can also be a push-pull electromagnet. In addition, the limit switch 6 is installed on the U-shaped claw 401. After the drive arm 204-1 passes the dead point position, the limit arm of the limit switch 6 contacts the drive arm 204-1.

[0053] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A mechanically self-locking conductor spacer fitting, characterized in that; include Spacer frame (1), the spacer frame (1) is used to support and space adjacent conductors; A wire fixing clamping device (2) is used to clamp and fix the wire. There are multiple wire fixing clamping devices (2) and they are all fixed on the spacer frame (1). The wire fixing clamping device (2) includes a fixed clamp (201), a movable clamp (202) and a clamp seat (203). The fixed clamp (201) and the movable clamp (202) cooperate to clamp the wire. The fixed clamp (201) is fixedly connected to the spacer frame (1). The clamp seat (203) is fixedly connected to the spacer frame (1). The clamp seat (203) is provided with a dead-point clamping mechanism (204) that drives the movable clamp (202) to open or close.

2. The mechanical self-locking conductor spacer fitting according to claim 1, characterized in that: The dead-point clamping mechanism (204) includes a drive arm (204-1), a gripper arm (204-2), and a connecting arm (204-3). The upper end of the drive arm (204-1) is rotatably connected to the gripper seat (203). The front end of the gripper arm (204-2) is fixedly connected to the movable gripper (202), and the rear end is rotatably connected to the gripper seat (203). The upper end of the connecting arm (204-3) is rotatably connected to the gripper arm (204-2), and the lower end is rotatably connected to the drive arm (204-1). The front of the connecting arm (204-3) is provided with a limiting protrusion (204-4). After the driving arm (204-1) passes the dead point position, the limiting protrusion (204-4) abuts against the bottom of the gripper arm (204-2).

3. The mechanical self-locking conductor spacer fitting according to claim 2, characterized in that: The gripper seat (203) is provided with a mechanical locking mechanism (205) for locking the over-dead-point clamping mechanism (204).

4. The mechanical self-locking conductor spacer fitting according to claim 3, characterized in that: The mechanical locking mechanism (205) includes a locking hook (205-1), the rear end of which is rotatably connected to the drive arm (204-1). The locking hook (205-1) is provided with a guide groove (205-2) and a barb groove (205-3) with the opening facing downward from front to back. The transition connection position between the guide groove (205-2) and the barb groove (205-3) is an inclined surface (205-4). The locking hook (205-1) is engaged with the locking pin (205-5), and the locking pin (205-5) is fixed on the gripper seat (203).

5. The mechanical self-locking conductor spacer fitting according to claim 1, characterized in that: The fixed gripper (201) and the movable gripper (202) are provided with anti-slip rubber pads (206) in their gripper grooves.

6. The mechanical self-locking conductor spacer fitting according to claim 1, characterized in that: The mechanical self-locking conductor spacer is used to split conductor spacers; the spacer frame (1) is an integral metal frame; The spacer frame (1) includes a crossbeam (101), and the number of the crossbeams (101) is at least one. Each of the crossbeams (101) is provided with a wire fixing clamping device (2) at both ends. Each of the beams (101) has an arc-shaped guide angle (102) on its upper end, and a hoisting hole (103) is provided on the arc-shaped guide angle (102).

7. The mechanical self-locking conductor spacer fitting according to claim 6, characterized in that: Two adjacent horizontal beams (101) are connected by multiple vertical plates (104); A lower extension bracket (105) is provided on the bottommost crossbeam (101).

8. A drone hoisting and installation system, used in conjunction with the mechanical self-locking conductor spacer hardware as described in claim 7, characterized in that: Includes an electric unhooking device (3), a drive locking device (4), an insulated suspension system (5), and a limit switch (6); The upper end of the electric unhooking device (3) is connected to the drone (8) via an insulated rod (301), and the lower end is connected to the hoisting hole (103); The drive locking device (4) is connected to the insulating suspension system (5), the upper end of the insulating suspension system (5) is connected to the drone (8), the drive locking device (4) has two drive ends, the two drive ends of the drive locking device (4) are simultaneously close to or far away from each other, each drive end of the drive locking device (4) is provided with a U-shaped claw (401), the U-shaped claw (401) abuts and engages with the support member (402) provided on the drive arm (204-1); The limit switch (6) is mounted on the U-shaped claw (401). After the drive arm (204-1) passes the dead point position, the limit arm of the limit switch (6) contacts the drive arm (204-1).

9. The mechanical self-locking conductor spacer fitting according to claim 1, characterized in that: The mechanically self-locking conductor spacer is used for phase-to-phase conductor spacing. The spacer frame (1) is an insulating support, and each end of the spacer frame (1) is provided with a wire fixing clamping device (2).

10. A drone hoisting and installation system, used in conjunction with the mechanical self-locking conductor spacer hardware as described in claim 9, characterized in that: Includes an insulating hanger (7), a drive locking device (4), an insulating suspension system (5), and a limit switch (6); The insulating hanger (7) is installed and fixed at the bottom of the UAV (8), and the insulating hanger (7) is connected to the spacer frame (1) through two electric unhookers (3) arranged at left and right intervals. There are two drive locking devices (4), which correspond to the wire fixing clamping device (2) respectively; the drive locking device (4) is rotatably connected to the insulating hanger (7), and a U-shaped claw (401) is provided on the drive end of the drive locking device (4), and the U-shaped claw (401) abuts and engages with the support member (402) provided on the drive arm (204-1); The insulated suspension system (5) includes an insulated suspension rope (501), the upper end of which is connected to the drone (8), and a power supply device (502) is provided on the insulated suspension rope (501). The limit switch (6) is mounted on the U-shaped claw (401). After the drive arm (204-1) passes the dead point position, the limit arm of the limit switch (6) contacts the drive arm (204-1).

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