A drone-based spacer installation system

Abstract

This invention relates to a drone-based spacer installation system in the field of spacer installation technology. The system includes a drone body, a spacer ring, and multiple wire clamps. The spacer ring has lifting lugs, and the drone body has lifting hooks. Each wire clamp includes a clamp ring composed of a fixed arc segment and a movable arc segment. One end of the fixed and movable arc segments are rotatably connected, and the outer wall of the other end is respectively connected to a fixed arm and a movable arm. Both the fixed and movable arc segments are fixed with elastic insulating bushings. The inner ring surface of the clamp ring has multiple grooves evenly distributed, each groove containing a movable insulating ball. A spring is provided between the insulating ball and the bottom of the groove. The elastic insulating bushing has an exposed hole corresponding to the groove, and the inner end wall of the exposed hole is arc-shaped. One end of the fixed arm is fixed with a clip and a strap, and the other end of the strap has a locking hole. This spacer installation system allows for manual pre-installation near power towers and utilizes drones to reduce construction difficulty and installation risks.

Description

Technical Field

[0001] This invention relates to the field of spacer installation technology, and in particular to a spacer installation system based on unmanned aerial vehicles (UAVs). Background Technology

[0002] As is well known, the current installation of spacers requires installers to climb to the top of the power tower with the spacers, then, with safety ropes in place, walk along the power line to the location requiring support. The spacers then have multiple wire clamps securely fastened to the corresponding wires. Because the spacers are heavy, transportation is difficult, and in the middle of the power line away from the tower, workers must ensure their own safety while securing each clamp and tightening the bolts. If the distance between two power towers is 300-400 meters, at least five spacers need to be installed on adjacent towers. This traditional installation method is extremely physically demanding, cumbersome, and requires workers to work in a suspended environment for extended periods under heavy loads, posing significant safety risks. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art and solve the existing technical problems, the present invention discloses a spacer installation system based on drones, which can be pre-installed manually near power towers and uses drones to reduce construction difficulty and installation risks.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A spacer bar installation system based on a drone includes a drone body, a spacer ring, and multiple wire clamps uniformly mounted on the outer surface of the spacer ring. The spacer ring body is connected to lifting lugs, and hooks corresponding to the lifting lugs are mounted on the lower surface of the drone body. Each wire clamp includes a clamp ring composed of a fixed arc segment and a movable arc segment. One end of each fixed and movable arc segment is rotatably connected, and the outer walls of the other ends of each segment are respectively connected to a fixed arm and a movable arm. The fixed and movable arms are detachably connected by bolts. Both the fixed and movable arc segments have elastic insulating linings fixed to their inner arc surfaces; the inner ring surface of the clamp ring is uniformly provided with multiple grooves, each groove containing a movable insulating ball, and a spring is provided between the insulating ball and the bottom of the corresponding groove; the elastic insulating lining has an exposed hole corresponding to the groove, and the inner end wall of the exposed hole is an arc-shaped constriction that fits the insulating ball and allows part of the ball to be exposed; the fixed arm has a pin and a strap fixed to one end, and the other end of the strap has a locking hole that allows the pin to be engaged after the strap passes over the movable arm.

[0006] Furthermore, the end face of the movable arm is fixed with two spaced-apart connecting plates, the gap between the two connecting plates is such that the threaded part of the bolt passes through and is smaller than the outer diameter of the bolt head, and the body of the fixed arm is provided with a threaded hole for the threaded part of the bolt to be screwed in.

[0007] Furthermore, the wire clamps are provided in three or four positions, and the bolts are positioned with their heads facing upwards or correspondingly located on the side of the spacer ring.

[0008] Furthermore, a boom is connected to the center of the lower surface of the drone body, and a swing arm controlled by a motor is rotatably connected to the bottom end of the boom. A hook is connected to one end of the swing arm, and an automatic screwdriver corresponding to a bolt is connected to the other end of the swing arm. A camera is installed on the side of the lower surface of the drone body near the automatic screwdriver.

[0009] Furthermore, the boom is configured as an electrically telescopic boom.

[0010] Furthermore, the grooves are provided in four or six places.

[0011] Furthermore, the insulating ball is made of ceramic material or PTFE material.

[0012] Furthermore, the inner end wall of the exposed hole is fitted with an abutment sleeve made of the same material as the insulating ball.

[0013] Furthermore, the maximum exposed height of the insulating ball is 0.8 times the radius of the insulating ball.

[0014] Furthermore, both the fixed arm and the movable arm have grooves on their walls for corresponding straps to be inserted.

[0015] By employing the technical solution described above, the present invention has the following beneficial effects:

[0016] The spacer installation system based on drones disclosed in this invention can first use the drone to hook the lifting lugs of the spacer and hoist it to the top of the power tower. Then, workers can operate the spacer near the top of the power tower, which has stable support and safety protection, using straps to keep the fixed and movable arc sections wrapped around the conductor but not tightened. At this time, since the clamp rings are only hanging on the conductor, each clamp ring only shares a small part of the weight of the entire spacer. The insulating ball can then be exposed under the action of the spring force, rolling against the conductor. The entire spacer can then be moved and transported along the conductor by the traction of the drone and the rolling contact of the insulating ball. This allows workers to pre-install multiple spacers needed in a safe position near the power tower, and then push the spacer along the conductor. Every 50-60m, the bolts are tightened to squeeze the clamp rings, and one spacer is completely installed. This not only saves time and labor, but also greatly reduces the potential risks of installing spacers suspended in the middle of the conductor due to the improved safety of pre-installation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the pre-installation implementation structure of the spacer bar;

[0018] Figure 2 This is a schematic diagram of the pre-installation structure of the wire clamp;

[0019] Figure 3 yes Figure 2 A partial side view of the structure with bolted connections;

[0020] Figure 4 This is a schematic diagram of the installation structure of the wire clamp;

[0021] Figure 5 yes Figure 4 A magnified structural diagram of part A in the diagram;

[0022] Figure 6 This is a structural schematic diagram of the unmanned aerial vehicle.

[0023] In the diagram: 1. Wire clamp; 101. Elastic insulating liner; 102. Fixed arc segment; 103. Movable arc segment; 104. Fixed arm; 105. Insulating ball; 106. Spring; 107. Groove; 108. Slot; 109. Clip; 110. Strap; 111. Exposed hole; 112. Bolt; 113. Contact sleeve; 114. Movable arm; 115. Connecting plate; 116. Threaded hole; 2. Spacer ring; 3. Lifting lug; 4. Unmanned aerial vehicle body; 5. Lifting rod; 6. Lifting hook; 7. Automatic screwdriver; 8. Camera. Detailed Implementation

[0024] The technical solution of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the accompanying drawings of the present invention for the convenience of describing the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation. Example 1:

[0025] Combined with appendix Figures 1-6 The aforementioned spacer installation system based on UAV includes a UAV body 4, a spacer ring 2, and multiple wire clamps 1 uniformly arranged on the outer ring surface of the spacer ring 2. The spacer ring 2 is connected to a lifting lug 3, which is generally located between two wire clamps 1. The lower surface of the UAV body 4 is equipped with a hook 6 corresponding to the lifting lug 3. The UAV body 4 can transport the entire spacer by hooking the lifting lug 3 with the hook 6.

[0026] The wire clamp 1 includes a clamping ring composed of a fixed arc segment 102 and a movable arc segment 103, which can be adapted to clamp the wire. One end of the fixed arc segment 102 and the movable arc segment 103 are rotatably connected, and the outer wall of the other end of the fixed arc segment 102 and the movable arc segment 103 are respectively connected to a fixed arm 104 and a movable arm 114. The fixed arm 104 and the movable arm 114 are detachably connected by bolts 112. When the fixed arm 104 and the movable arm 114 are close and tightly connected, the fixed arc segment 102 and the movable arc segment 103 are also completely closed. The entire rotating clamping structure is similar to the existing clamp structure. The inner arc surfaces of the fixed arc segment 102 and the movable arc segment 103 are both fixed with elastic insulating pads 101, which can protect the wire and ensure insulation.

[0027] The inner ring surface of the wire clamp is uniformly provided with multiple grooves 107. As needed, four or six grooves 107 can be provided, and they are symmetrically arranged on the fixed arc segment 102 and the movable arc segment 103 to ensure that the number of insulating balls 105 can achieve the effect of rolling support for the conductor. Each groove 107 is provided with an insulating ball 105. The insulating ball 105 is made of ceramic material or PTFE material to ensure a certain support hardness while having good insulation. A spring 106 is provided between the insulating ball 105 and the bottom of the corresponding groove 107. The elastic insulating liner 101 is provided with an exposed hole 111 corresponding to the groove 107. The inner end wall of the exposed hole 111 is an arc-shaped constriction shape that fits the insulating ball 105 to abut and can expose part of the ball. Under the action of the spring force of the spring 106, the insulating ball 105 can abut the inner end wall of the exposed hole 111 and expose part of the ball for rolling contact. As needed, the inner end wall of the exposed hole 111 is fitted with an abutment sleeve 113 of the same material as the insulating ball 105, thereby reducing the direct contact area between the insulating ball 105 and the elastic insulating liner 101 and increasing the rotational flexibility of the insulating ball 105. In addition, the maximum exposed height of the insulating ball 105 is 0.8 times the radius of the insulating ball 105, which facilitates contact with the wire during pre-installation. The wall of the fixed arm 104 is fixed with a clip 109 and a strap 110 at one end. The other end of the strap 110 is provided with a locking hole that can be fitted with the clip 109 after the strap 110 passes around the movable arm 114. The locking hole and the clip 109 cooperate to facilitate quick assembly and disassembly. As needed, the walls of both the fixed arm 104 and the movable arm 114 are provided with corresponding slots 108 for the strap 110 to be inserted. The slots 108 can prevent the strap 110 from moving up and down and disengaging from the movable arm 114 connected to the movable arc segment 103.

[0028] The spacer installation system based on the UAV of this invention allows for the initial use of the hook 6 connected to the UAV body 4 to hook the spacer's lifting lug 3, hoisting the spacer to the top of the power tower. Then, workers can pre-install the spacer near the top of the power tower, where it has stable support and safety protection. Specifically, the fixed arc segment 102 and the movable arc segment 103 can be wrapped around the conductor, and the binding strap 110 is used to prevent the two fixed arms 104 and the movable arm 114 from completely separating. This ensures that the wire clamp is only attached to the conductor and is not tightened. At this point, the spacer is securely installed. The insulating ball 105 can expose the elastic insulating liner 101 under the force of the spring 106, and roll against the wire. This facilitates the movement and transportation along the wire by the traction of the unmanned vehicle body 4 and the rolling contact of the insulating ball 105. After the spacer is delivered to the position, the fixed arc segment 102 and the movable arc segment 103 are tightened by the bolt 112. At this time, the spring 106 is forced to retract into the groove 107, and the wire can directly contact the elastic insulating liner 101. The spring 106 provides a reverse preload force for the bolt 112, thereby enhancing the stability of the bolt 112 connection and preventing the connection from loosening. Example 2:

[0029] Combined with appendix Figure 2 , 3 As shown in Figure 6, based on Embodiment 1, the end face of the movable arm 114 is fixed with two spaced-apart connecting plates 115. The gap between the two connecting plates 115 is such that the threaded part of the bolt 112 passes through and is smaller than the outer diameter of the bolt head. The body of the fixed arm 104 is provided with a threaded hole 116 for threading the threaded part of the bolt 112. By tightening the bolt 112, the head of the bolt 112 abuts against the connecting plate 115 and drives the movable arm 114 closer to the fixed arm 104 for connection and fixation. In this way, when the line clamp is pre-installed on the wire, the bolt 112 can also be pre-screwed into the threaded hole 116 for holding and conveying. After the spacer is delivered to the position, it is tightened and fixed. As needed, the lower surface of the unmanned aerial vehicle body 4 is connected to the center of the threaded hole 116. The boom 5 is an electrically telescopic boom, which facilitates the adjustment of the lifting length. The bottom end of the boom 5 is rotatably connected to a swing arm controlled by a motor. The motor controls the rotation angle of the swing arm. The hook 6 is connected to one end of the swing arm, and the other end of the swing arm is connected to an automatic screwdriver 7 corresponding to the bolt 112. The automatic screwdriver 7 can automatically tighten the bolt 112. A camera 8 is installed on the lower surface of the drone body 4 near the automatic screwdriver 7. The image information collected by the camera 8 is used to control the drone body 4 so that the automatic screwdriver 7 is aligned with the bolt 112 for tightening. In addition, there are three or four wire clamps 1, with the head of the bolt 112 facing upwards or located on the side of the spacer ring 2, so that the automatic screwdriver 7 can rotate the corresponding bolt 112.

[0030] The parts of this invention not described in detail are prior art. It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims within this invention, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A spacer installation system based on unmanned aerial vehicles (UAVs), characterized in that: The system includes an unmanned aerial vehicle (UAV) body (4), a spacer ring (2), and multiple wire clamps (1) uniformly arranged on the outer ring surface of the spacer ring (2). The spacer ring (2) is connected to a lifting lug (3), and the lower surface of the UAV body (4) is equipped with a hook (6) corresponding to the lifting lug (3). A lifting rod (5) is connected to the center of the lower surface of the UAV body (4). The bottom end of the lifting rod (5) is rotatably connected to a swing rod controlled by a motor. The hook (6) is connected to one end of the swing rod, and the other end of the swing rod is connected to an automatic screw gun (7) corresponding to the bolt (112). 4) A camera (8) is installed on the lower surface near the side of the automatic screwdriver (7); the wire clamp (1) includes a wire clamp ring composed of a fixed arc segment (102) and a movable arc segment (103). One end of the fixed arc segment (102) and the movable arc segment (103) are rotatably connected. The outer wall of the other end of the fixed arc segment (102) and the movable arc segment (103) are respectively connected to a fixed arm (104) and a movable arm (114). The fixed arm (104) and the movable arm (114) are detachably connected by bolts (112). Two spaced-apart connecting plates (115) are fixed to the end face of the rod. The gap between the two connecting plates (115) is such that the threaded part of the bolt (112) passes through and is smaller than the outer diameter of the head of the bolt (112). The rod body of the fixed arm (104) is provided with a threaded hole (116) for the threaded part of the bolt (112) to be screwed in. The inner arc surfaces of the fixed arc segment (102) and the movable arc segment (103) are both fixed with elastic insulating bushings (101). The inner ring surface of the wire clamp ring is uniformly provided with multiple grooves (107), and each groove (107) is movably provided with an insulating ball (105). A spring (106) is provided between the insulating ball (105) and the bottom of the corresponding groove (107). The elastic insulating liner (101) is provided with an exposed hole (111) corresponding to the groove (107). The inner end wall of the exposed hole (111) is adapted to the insulating ball (105) to abut and can expose part of the ball in an arc-shaped constriction. The wall of the fixed arm (104) is fixed with a clip (109) and a strap (110). The other end of the strap (110) is provided with a clip hole that can be fitted with the clip (109) after the strap (110) passes around the movable arm (114).

2. The spacer installation system based on unmanned aerial vehicles according to claim 1, characterized in that: The wire clamp (1) is provided in three or four parts, and the head of the bolt (112) is set upward.

3. The spacer installation system based on unmanned aerial vehicles (UAVs) according to claim 1, characterized in that: The boom (5) is an electric telescopic boom.

4. The spacer installation system based on unmanned aerial vehicles according to claim 1, characterized in that: The groove (107) has four or six.

5. The spacer installation system based on unmanned aerial vehicles according to claim 1, characterized in that: The insulating ball (105) is made of ceramic material or PTFE material.

6. The spacer installation system based on unmanned aerial vehicles according to claim 1, characterized in that: The inner end wall of the exposed hole (111) is fitted with an abutment sleeve (113) made of the same material as the insulating ball (105).

7. The spacer installation system based on unmanned aerial vehicles according to claim 1, characterized in that: The maximum exposed height of the insulating ball (105) is 0.8 times the radius of the insulating ball (105).

8. The spacer installation system based on unmanned aerial vehicles according to claim 1, characterized in that: The walls of both the fixed arm (104) and the movable arm (114) are provided with slots (108) into which the corresponding straps (110) are inserted.

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