An unmanned aerial vehicle hoisting and releasing device for overhead line spacer rods

Abstract

This invention discloses a UAV hoisting and release device for overhead power line spacer bars, belonging to the field of spacer bar installation technology. It includes a hoisting mechanism suspended below the UAV, connected to a clamp fixed to the end of the spacer bar. The clamp includes a fixed clamping arm, fixedly connected to the spacer bar; and a rotating clamping arm, hinged to the fixed clamping arm. Through a traction member that cooperates with the traction part on the rotating clamping arm, during the disassembly of the spacer bar, the elongated traction part on the traction member can precisely connect with the traction part even when the overhead power line is bent. Furthermore, by rotating the traction member to the swing arm, the traction member can adaptively adjust its cooperation with the traction part during the swing arm's movement, thereby generating an effective torque to drive the rotating clamping arm to rotate around the hinge axis, ensuring that the clamp smoothly releases the overhead power line.

Description

Technical Field

[0001] This invention relates to the field of spacer installation technology, and in particular to a UAV hoisting and release device for overhead line spacers. Background Technology

[0002] In high-voltage, ultra-high-voltage, and extra-high-voltage overhead transmission lines, spacers are the core hardware for ensuring the safe operation of split conductors. Their main function is to fix the spacing between each conductor, suppress conductor vibrations in the wind and oscillations between spans, prevent whipping and sticking between conductors, effectively reduce the probability of line operation failures, and ensure the long-term stable operation of the transmission line.

[0003] Chinese patent CN121791014B discloses a method and device for loading and unloading spacers using a drone. The method involves transporting spacers by a drone carrying a mounting component, and using the synergistic effect of an adjustment component and a clamping component to achieve precise positioning of the conductor and stable installation of the spacers. This method effectively solves the safety hazards and low efficiency associated with manual installation of spacers, and also addresses the difficulties in positioning and aligning two conductors during drone installation. Furthermore, it is compatible with spacer disassembly operations, making the operation safe and convenient.

[0004] During the disassembly of the spacer bar, the UAV loading and unloading device requires axial alignment of the connecting pins of the rotating block and the connecting holes of the rotating clamp before the rotating clamp can be driven to open outward, thus separating the clamp from the overhead conductor. Because both the connecting pins and connecting holes have circular cross-sections, after the UAV detaches from the spacer bar, the spacer bar's own load exerts a downward pressure on the overhead conductor, causing the conductor in the spacer bar installation area to bend downward (see the instruction manual for details). Figure 7 The deformation of the conductor changes the installation posture of the spacer, making it difficult to achieve precise vertical alignment between the connecting post and the connecting hole during subsequent disassembly, thus increasing the difficulty of disassembling the spacer.

[0005] Therefore, it is necessary to provide an overhead line spacer bar UAV hoisting and release device to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide an overhead line spacer bar UAV hoisting and release device to solve the technical problems mentioned in the background art.

[0007] Based on the above ideas, the present invention provides the following technical solution: an overhead line spacer bar UAV hoisting and release device, including a hoisting mechanism suspended below the UAV, wherein the hoisting mechanism is connected to a clamp fixed to the end of the spacer bar; The clamp includes: The clamping arm is fixedly connected to the spacer bar; The rotating clamping arm is hinged to the fixed clamping arm, and both the fixed clamping arm and the rotating clamping arm have slots on opposite sides that mate with overhead power lines. The hoisting mechanism includes: Top plate, used for connecting to the drone; The guide component is fixed to both sides of the bottom of the top plate. The inner side of the guide component is provided with an inclined guide part and a snap-fit ​​part that cooperates with the overhead power line. The movable plate is slidably positioned on both sides of the bottom of the top plate; The swing arm is hinged to the moving plate, and the hinge axis coincides with the rotation axis of the rotating clamping arm relative to the fixed clamping arm. The traction component is installed on the swing arm; The traction part is fixed relative to the rotating clamp arm. The traction part is inserted into and can slide relative to the traction member. The swing arm drives the rotating clamp arm to rotate synchronously so that it fits into the fixed clamp arm. The traction member and the traction part are in a vertically engaged state.

[0008] As a further aspect of the present invention: the traction member is rotatably engaged with the swing arm via a connecting shaft, and the traction member is elastically connected to the swing arm along the circumferential direction of the connecting shaft.

[0009] As a further aspect of the present invention: the swing arm is provided with two sets of limiting posts for limiting and fixing the traction member, and the limiting posts can move linearly relative to the swing arm along a direction parallel to the hinge axis of the swing arm and the moving plate.

[0010] As a further aspect of the present invention: the rectangular groove-shaped space inside the traction member is designated as the traction part, and the traction part is a columnar protrusion structure formed by the outward protrusion of one side of the rotating clamp arm. The protrusion extends into the traction part and slides in cooperation with the traction part.

[0011] As a further embodiment of the present invention: a second telescopic unit is provided on one side of the movable plate, the tail end of the second telescopic unit is hinged to the movable plate, and the telescopic end of the second telescopic unit is hinged to the end of the swing arm near the top plate.

[0012] As a further aspect of the present invention: the top of the movable plate is provided with a mounting seat, the mounting seat passes through a pre-set through groove on the top plate, and a first telescopic unit is connected between the two mounting seats.

[0013] As a further aspect of the present invention: a limiting pin is provided at one end of the swing arm near the top plate, and the moving plate is provided with a limiting groove through which the limiting pin passes. The limiting groove is arc-shaped and its center coincides with the rotation axis of the swing arm.

[0014] As a further embodiment of the present invention: linear slide rails are fixedly connected to both sides of the bottom of the top plate, and a slider that slides with the linear slide rails is provided on the movable plate.

[0015] As a further aspect of the present invention: a lock head is fixedly connected to the inner side of the rotating clamping arm. The lock head is a columnar structure with a central hole, and a lock hole that cooperates with the lock head is opened on the inner wall of the fixed clamping arm.

[0016] As a further embodiment of the present invention: a locking unit that cooperates with the lock head is elastically provided inside the fixed clamping arm. The locking unit has an overall U-shaped structure. Its shorter section is set as a locking pin and is axially aligned with the lock head inserted into the lock hole. Its longer section is set as an extension section. The extension section passes through the fixed clamping arm and extends to the outer region of the fixed clamping arm. A movable plate is fixedly connected to a top rod that cooperates with one end of the locking unit that extends out of the fixed clamping arm.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the traction member to cooperate with the traction part on the rotating clamp arm, during the process of disassembling the spacer bar, the long strip-shaped traction part on the traction member can accurately dock with the traction part when the overhead wire is bent; and by rotating the traction member to the swing arm, the traction member can adaptively adjust its cooperation state with the traction part during the swing arm swing, thereby forming an effective torque to drive the rotating clamp arm to rotate around the hinge axis, ensuring that the clamp can smoothly release the overhead wire. Attached Figure Description

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

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the hoisting mechanism and the spacer bar of the present invention; Figure 3 This is a schematic diagram of the guide component of the present invention in conjunction with an overhead power line; Figure 4 This is a schematic diagram of the fixture structure of the present invention; Figure 5 This is a schematic diagram of the connection structure between the second telescopic unit and the swing arm of the present invention; Figure 6 This is a schematic diagram of the connection structure between the first telescopic unit and the movable plate of the present invention; Figure 7 This is a schematic diagram showing that the traction part and the traction part are staggered along the Y direction in the existing scheme; Figure 8 This is a schematic diagram of the initial engagement between the traction member and the traction part of the present invention; Figure 9This is a schematic diagram of the state of the guide after the rotating clamp arm and the fixed clamp arm of the present invention are in contact; Figure 10 This is a schematic diagram of the state of the guide member of the present invention after it has deflected relative to the swing arm; Figure 11 This is a schematic diagram of the locking unit structure of the present invention.

[0020] In the diagram: 1. Unmanned Aerial Vehicle (UAV); 2. Lifting Mechanism; 201. Crossbar; 202. Top Plate; 203. Moving Plate; 2031. Mounting Base; 2032. Limiting Groove; 2033. Top Rod; 204. Guide Component; 2041. Guide Section; 2042. Snap-fit ​​Section; 205. Linear Slide Rail; 206. First Telescopic Unit; 207. Swing Arm; 2071. Traction Section; 208. Pin; 209. Fixing Component; 210. Traction Component; 211. 1. Connecting shaft; 212. Elastic element; 213. Second telescopic unit; 214. Limiting post; 215. Limiting pin; 3. Spacer bar; 4. Sling; 5. Clamp; 501. Fixed clamping arm; 5011. Locking hole; 502. Rotating clamping arm; 5021. Lock head; 5022. Pulled part; 503. Protective pad; 504. Hinge shaft; 6. Wire; 7. Locking unit; 701. Extension part; 702. Locking pin part; 703. Limiting spring. Detailed Implementation

[0021] like Figures 1 to 11 As shown, an overhead power line spacer unmanned aerial vehicle (UAV) hoisting and release device includes a hoisting mechanism 2, which is suspended from the bottom of a UAV 1 via a sling 4 and connected to a spacer 3. Clamps 5 are fixedly mounted at both ends of the spacer 3, and the clamps 5 are used to clamp and fix external overhead power lines 6. The UAV 1 is equipped with a camera device, which can observe the relative position of the hoisting mechanism 2 and the overhead power line 6 in real time, assisting in achieving precise docking between the hoisting mechanism 2 and the overhead power line 6. In this embodiment, the UAV uses an existing mature model, and its specific structure will not be described in detail here.

[0022] During operation, the drone 1 is used to lift the spacer 3 to the preset installation position of the overhead power line 6, and then the lifting mechanism 2 and the spacer 3 are lowered. After the clamps 5 at both ends of the spacer 3 firmly hold the overhead power line 6, the lifting mechanism 2 is disconnected from the spacer 3 and removed from the work area together with the drone 1.

[0023] Combination Figure 4As shown, the clamp 5 includes a fixed clamping arm 501 and a rotating clamping arm 502 hinged to the fixed clamping arm 501 via a hinge shaft 504. The fixed clamping arm 501 is fixed to the end of the spacer 3 by bolts. Both the fixed clamping arm 501 and the rotating clamping arm 502 have semi-circular slots on opposite sides that mate with the overhead power line 6, and a rubber protective pad 503 is fixed to the inner circular surface of the slot to prevent damage to the overhead power line 6 during clamping.

[0024] Combination Figures 2 to 6 It can be seen that the hoisting mechanism 2 includes a crossbar 201, with top plates 202 fixed to both ends of the crossbar 201, and guide members 204 fixed to both sides of the bottom of each top plate 202. Figure 2 , Figure 3 As shown, the two support arms of the guide member 204 are inclined outward, forming an overall figure-eight shape; the inner side is provided with an inclined guide part 2041, and the junction of the top ends of the two guide parts 2041 is provided with an arc-shaped snap-fit ​​part 2042. The width of the snap-fit ​​part 2042 along the axial direction of the crossbar 201 is adapted to the outer diameter of the overhead wire 6, and the diameter of the snap-fit ​​part 2042 can match the diameter of the slot on the fixed clamp arm 501.

[0025] When the hoisting mechanism 2 and the clamp 5 at the end of the spacer bar 3 are assembled in place, the locking part 2042 and the fixed clamp arm 501 are aligned. When the hoisting mechanism 2 and the clamp 5 fall to the overhead power line 6, the overhead power line 6 can be simultaneously embedded into the slots of the locking part 2042 and the fixed clamp arm 501.

[0026] During the process of the drone 1 lowering the hoisting mechanism 2, the figure-eight shaped guide 204 can improve the alignment tolerance range. As long as the overhead power line 6 falls between the two sets of guides 2041, it can slide smoothly into the locking part 2042 along the guide 2041 as the hoisting mechanism 2 falls.

[0027] Movable plates 203 are slidably mounted on both sides of the bottom of the top plate 202 in a direction perpendicular to the axis of the crossbar 201. Figure 5 As shown, a swing arm 207 for driving the rotating clamping arm 502 to rotate is hinged to one side of the movable plate 203. A pin 208 fixed to the swing arm 207 passes through the movable plate 203 and rotatably engages with the movable plate 203. This allows the swing arm 207 to rotate relative to the movable plate 203 around the pin 208. It should be noted that the axis of the pin 208 coincides with the axis of the hinge shaft 504, enabling the swing arm 207 to drive the rotating clamping arm 502 to rotate synchronously.

[0028] A second telescopic unit 213 is provided on one side of the movable plate 203. The tail end of the second telescopic unit 213 is hinged to the movable plate 203, and the telescopic end of the second telescopic unit 213 is hinged to the end of the swing arm 207 near the top plate 202.

[0029] Furthermore, the second telescopic unit 213 can be an electric push rod. A limiting pin 215 is fixedly connected to one end of the swing arm 207 near the second telescopic unit 213. A sleeve is fixedly connected to the telescopic end of the second telescopic unit 213, and the sleeve is rotatably sleeved on the outside of the limiting pin 215, so that the telescopic end of the second telescopic unit 213 is hinged to the limiting pin 215. (Combined) Figure 5 As shown, the movable plate 203 is provided with an arc-shaped limiting groove 2032 that cooperates with the limiting pin 215, and the center of the limiting groove 2032 is located on the axis of the pin 208. This allows the limiting pin 215 to move along the limiting groove 2032 during the swinging process of the second telescopic unit 213 driving the swing arm 207. The constraint of the limiting pin 215 by the limiting groove 2032 helps to further improve the stability of the swing arm 207.

[0030] In some designs, to enable the swing arm 207 to synchronously drive the rotating clamping arm 502 to rotate, a traction portion 5022 is provided on the side of the rotating clamping arm 502 near the swing arm 207, while a traction portion 2071 is provided on the swing arm 207 to engage with the traction portion 5022. Specifically, the traction portion 5022 is a circular hole opened on the side of the rotating clamping arm 502, while the traction portion 2071 is a circular protrusion fixed to the swing arm 207. When the UAV 1 lowers the hoisting mechanism 2 so that the fixed clamping arm 501 and the guide member 204 fall onto the overhead power line 6, the second telescopic unit 213 drives the swing arm 207 to rotate. By utilizing the engagement of the circular protrusion and the circular hole, the swing arm 207 can synchronously drive the rotating clamping arm 502 to rotate so that the rotating clamping arm 502 rotates to a state of contact with the fixed clamping arm 501. However, in actual operation, after the drone 1 and the hoisting mechanism 2 are simultaneously removed, the pressure of the spacer bar 3 on the overhead power line 6 causes the overhead power line 6 to bend downwards in the area where it is located. (See details...) Figure 7 As shown, the curvature will further increase over time. This leads to a situation where, during the subsequent disassembly of the spacer bar 3 using the hoisting mechanism 2, when the guide member 204 in the hoisting mechanism 2 falls onto the overhead power line 6, its traction part 2071 and the traction part 5022 on the rotating clamp arm 502 are in the vertical direction (i.e., Figure 7 The direction Y shown will be misaligned, making it difficult to achieve the insertion and engagement between the traction part 2071 and the traction part 5022.

[0031] For the reasons mentioned above, this design features a columnar protrusion on the side of the rotating clamping arm 502 near the swing arm 207, extending outward along its slot axis. This protrusion is the traction part 5022. The swing arm 207, near the rotating clamping arm 502, has a U-shaped traction member 210. The internal square slot of the traction member 210 is the traction part 2071. The width of the traction part 2071 matches the diameter of the traction part 5022, and the length of the traction part 2071 is greater than the diameter of the traction part 5022. The traction part 5022 on the rotating clamping arm 502 can be inserted into the traction member 210.

[0032] Of course, in another embodiment, the traction part 5022 can also be a long strip-shaped groove structure provided on the side of the rotating clamp arm 502, while the traction part 2071 is a protrusion structure provided on the traction member 210. Considering that opening a long strip-shaped groove on the side of the rotating clamp arm 502 would increase its overall size, in this solution, the protrusion structure is preferably provided on the rotating clamp arm 502 and serves as the traction part 5022, while the internal space of the traction member 210 serves as the traction part 2071.

[0033] Initially, the rotating clamp 502 is in Figure 8 The open state is shown, while the traction member 210 is approximately in the open state. Figure 8 The horizontal state is shown in the figure. During the rotation of the swing arm 207 around the pin 208 driven by the second telescopic unit 213, pressure is applied to the pulled part 5022 through the inner wall b of the traction member 210, which simultaneously drives the rotating clamping arm 502 to rotate relative to the fixed clamping arm 501. When the rotating clamping arm 502 is in contact with the fixed clamping arm 501, the traction member 210 is in the position shown in the figure. Figure 9 The vertical position is shown. Because the length of the traction part 2071 is greater than the diameter of the pulled part 5022, even if the overhead power line 6 bends downwards in the area of ​​the spacer 3, the traction part 2071 and the pulled part 5022 can still move along the vertical direction during the disassembly of the spacer 3 via the hoisting mechanism 2. Figure 7 The Y-direction shown is aligned so that the traction part 5022 can be accurately inserted into the traction part 2071, which is beneficial for the rotating clamping arm 502 to be separated from the fixed clamping arm 501 by the swing arm 207.

[0034] Combination Figure 9As shown, when the traction member 210 is in a vertical state and the pulled part 5022 on the rotating clamping arm 502 is inserted into the traction member 210, during the swinging process of the swing arm 207, the inner wall a of the traction member 210 will contact the pulled part 5022 and form pressure F1. Under these circumstances, the pressure of the traction member 210 on the pulled part 5022 is difficult to generate an effective torque for the rotating clamping arm 502 to rotate relative to the fixed clamping arm 501 around its hinge axis, thus making it difficult to drive the rotating clamping arm 502 to deflect. Based on this, this solution rotatably engages the traction member 210 with the swing arm 207. Figures 5-6 As shown, the end of the traction member 210 away from the pin 208 is provided with a connecting shaft 211, so that the traction member 210 is rotatably engaged with the swing arm 207 through the connecting shaft 211, and the traction member 210 is elastically connected to the swing arm 207 along the circumferential direction of the connecting shaft 211. Furthermore, such as Figure 5 As shown, when the traction member 210 is in its initial state, there are limit posts 214 on both sides of the traction member 210. The limit posts 214 can pass through the swing arm 207 and be threadedly connected to the swing arm 207.

[0035] Initially, both limiting posts 214 extend to both sides of the traction member 210 to limit the deflection of the traction member 210, allowing the traction member 210 to... Figure 8 The state shown causes the pulled part 5022 to deflect; when the spacer bar 3 is disassembled, the limiting post 214 on one side of the traction member 210 can be rotated to make it offset from the traction member 210, so that the traction member 210 has the freedom to deflect to one side around the connecting shaft 211, while the traction member 210 abuts against the limiting post 214 on the other side under elastic force and remains in a vertical state. When the traction component 210 is in such a state Figure 9 In the state shown, as the swing arm 207 swings inward to drive the rotating clamp arm 502 to deflect outward, the traction member 210 can deflect around the connecting shaft 211 under the obstruction of the traction part 5022, specifically as follows: Figure 10 As shown, when the inner end c of the traction member 210 contacts the traction part 5022, as the swing arm 207 swings, the pressure F2 of the traction member 210 on the traction part 5022 can form an effective torque for the rotating clamping arm 502 to rotate relative to the fixed clamping arm 501 around its hinge axis, which is beneficial to drive the rotating clamping arm 502 to deflect away from the fixed clamping arm 501.

[0036] The specific process of installing the spacer bar 3 by the hoisting mechanism 2: Drive the swing arm 207 to deflect outwards to... Figure 8In the open state shown, the limiting posts 214 on both sides of the traction member 210 are rotated to fit against both sides of the traction member 210 to fix the traction member 210, and the two sets of moving plates 203 are driven to move closer to each other so that the traction part 5022 on the side wall of the rotating clamp arm 502 is inserted into the traction member 210. The drone 1 lifts the hoisting mechanism 2 and the spacer 3 as a whole to the area to be installed on the overhead power line 6 and lowers the hoisting mechanism 2. The guide 204 allows the overhead power line 6 to enter the snap-fit ​​part 2042 and the fixed clamp arm 501 at the same time. The second telescopic unit 213 drives the swing arm 207 to swing so that the rotating clamp arm 502 deflects around its hinge axis toward the fixed clamp arm 501 and finally fits with the fixed clamp arm 501, so that the spacer 3 is installed on the overhead wire 6 by the clamp 5.

[0037] The specific process of disassembling the spacer bar 3 by the hoisting mechanism 2: Pre-adjust the swing arm 207 to be in the position as Figure 9 The closed state shown allows the traction member 210 to be vertically positioned. Rotating the limiting post 214 on one side of the traction member 210 gives the guide member 204 the freedom to rotate to one side around the connecting shaft 211, so that the traction member 210 can abut against the limiting post 214 on the other side and maintain a vertical posture under elastic force. Adjusting the two sets of moving plates 203 to move away from each other allows the clamp 5 at the end of the spacer bar 3 to fall between the two sets of moving plates 203. The hoisting mechanism 2 is lifted to the corresponding area by the drone 1 and then lowered so that the guide 204 falls on the overhead power line 6 and the moving plate 203 is outside the clamp 5. The two sets of moving plates 203 are driven to move closer to each other, so that the traction part 5022 on the side wall of the rotating clamp arm 502 can be inserted into the traction member 210, specifically as follows: Figure 9 As shown, as the swing arm 207 opens outward, the traction member 210 is resisted by the traction part 5022 and rotates relative to the swing arm 207 about the connecting shaft 211, so that the end of the traction member 210 eventually contacts the traction part 5022 and forms an effective torque that allows the rotating clamp arm 502 to rotate about its hinge axis. As the swing arm 207 continues to open outward, the rotating clamp arm 502 can deflect away from the fixed clamp arm 501 so that the clamp 5 eventually releases the overhead power line 6, which is beneficial for the UAV 1 to drive the hoisting mechanism 2 and the spacer bar 3 to withdraw synchronously.

[0038] In summary, this solution, through the cooperation between the traction member 210 and the traction part 5022 on the rotating clamping arm 502, allows for precise docking with the traction part 5022 even when the overhead power line 6 is bent, thanks to the elongated traction part 2071 on the traction member 210 during the disassembly of the spacer bar 3. Furthermore, by rotatably connecting the traction member 210 to the swing arm 207, the traction member 210 can adaptively adjust its cooperation with the traction part 5022 during the swing of the swing arm 207, thereby generating an effective torque to drive the rotating clamping arm 502 to rotate around the hinge axis, ensuring that the clamp 5 smoothly releases the overhead power line 6.

[0039] Combination Figure 4 , Figure 11 As shown, a lock head 5021 is fixedly connected to the inner side of the rotating clamping arm 502, away from its hinge axis. The lock head 5021 is a columnar structure with a central hole. The inner wall of the fixed clamping arm 501 has a lock hole 5011 that mates with the lock head 5021. When the rotating clamping arm 502 is in contact with the fixed clamping arm 501, the lock head 5021 can be inserted into the lock hole 5011 to lock the rotating clamping arm 502 and the fixed clamping arm 501.

[0040] Furthermore, referring to Figure 11 As shown, a locking unit 7 that cooperates with the lock head 5021 is provided inside the fixed clamping arm 501. The locking unit 7 has an overall U-shaped structure. Its shorter section is set as a locking pin 702 and is axially aligned with the lock head 5021 inserted into the lock hole 5011. Its longer section is set as an extension 701, which passes through the fixed clamping arm 501 and extends to the outer region of the fixed clamping arm 501. The locking unit 7 is elastically engaged with the fixed clamping arm 501 along the axial direction of the groove on the fixed clamping arm 501. A push rod 2033 is fixedly connected to one of the moving plates 203, which cooperates with the end of the locking unit 7 that extends to the outer side of the fixed clamping arm 501.

[0041] During the process of driving the two sets of moving plates 203 to approach each other so that the pulled part 5022 is inserted into the traction part 2071, the top rod 2033 on the side wall of the moving plate 203 can press the locking unit 7 to one end extending to the outside of the fixed clamping arm 501 and push the locking unit 7 to move as a whole, so that the shorter part of the locking unit 7 is separated from the lock head 5021 to unlock the rotating clamping arm 502 from the fixed clamping arm 501, thereby facilitating the cooperation between the clamp 5 and the external overhead power line 6; When the spacer bar 3 is installed on the outer overhead power line 6 by the clamp 5, during the process of driving the two sets of moving plates 203 away from each other so that the pulled part 5022 gradually exits from the pulling part 2071, the shorter section of the locking unit 7 can be inserted into the lock hole 5011 of the lock head 5021, thereby locking the rotating clamp arm 502. When the pulled part 5022 completely exits the pulling part 2071, the drone 1 can drive the hoisting mechanism 2 to withdraw synchronously, while the spacer bar 3 is locked to the overhead power line 6 by the clamp 5.

[0042] Combination Figures 4-6 As shown, linear slide rails 205 are fixedly connected to both sides of the bottom of the top plate 202. A slider is provided on the movable plate 203 to slide in cooperation with the linear slide rails 205. Alternatively, a groove can be provided on the movable plate 203 to slide in cooperation with the linear slide rails 205. A mounting base 2031 is fixedly connected to the top of the movable plate 203, and the mounting base 2031 passes through a pre-set through slot on the top plate 202. (Refer to...) Figure 6 As shown, a first telescopic unit 206 is connected between the two mounting bases 2031. The first telescopic unit 206 can be an electric push rod, and both ends of the electric push rod can be hinged or fixedly connected to the mounting base 2031 respectively. The extension and retraction of the electric push rod can drive the moving plate 203 to move linearly back and forth relative to the top plate 202. Furthermore, an elastic element 212 is connected between the mounting base 2031 and the guide member 204. The elastic element 212 can be a tension spring, so that the mounting base 2031 and the guide member 204 elastically cooperate along the length direction of the top plate 202, thereby improving the stability of the sliding of the moving plate 203.

[0043] Combination Figure 6 As shown, the fixed clamping arm 501 has an opening, and the integrally formed protrusion on the rotating clamping arm 502 is inserted into the opening and rotates with the fixed clamping arm 501 through the hinge shaft 504. Of course, in actual use, the two can also be hinged together by means of hinges or other components.

[0044] Refer again Figure 6 As shown, a plate-shaped fixing member 209 is fixedly installed on the swing arm 207 by bolts, and the connecting shaft 211 fixed to the traction member 210 is rotatably engaged with the fixing member 209. A torsion spring is sleeved on the outside of the connecting shaft 211, and the two ends of the torsion spring are respectively connected to the connecting shaft 211 and the fixing member 209, so that the traction member 210 is elastically engaged with the swing arm 207.

[0045] Reference Figure 8Initially, the traction part 5022 is inserted into the traction member 210 and fits against the end of the traction member 210, which helps to constrain the spacer 3 along the axial direction of the spacer 3, prevents the spacer 3 from shifting relative to the hoisting mechanism 2, and facilitates the precise docking of the clamp 5 with the external overhead power line 6.

[0046] Reference Figure 11 As shown, the fixed clamping arm 501 is provided with a mounting groove for mounting the locking unit 7, and a limit spring 703 is connected between the end of the mounting groove along the axial direction of the groove of the fixed clamping arm 501 and the locking unit 7, so that the locking unit 7 and the fixed clamping arm 501 are elastically engaged.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A UAV hoisting and release device for overhead line spacer bars, characterized in that, Includes a hoisting mechanism (2) suspended below the drone (1), the hoisting mechanism (2) being connected to a clamp (5) fixed to the end of the spacer (3); The clamp (5) includes: The fixed clamping arm (501) is fixedly connected to the spacer bar (3); The rotating clamping arm (502) is hinged to the fixed clamping arm (501), and both the fixed clamping arm (501) and the rotating clamping arm (502) have slots on opposite sides that cooperate with the overhead wire (6). The hoisting mechanism (2) includes: Top plate (202) for connection with UAV (1); The guide (204) is fixed to both sides of the bottom of the top plate (202). The guide (204) has an inclined guide part (2041) and a snap-fit ​​part (2042) that cooperates with the overhead wire (6). The movable plate (203) is slidably disposed on both sides of the bottom of the top plate (202); The swing arm (207) is hinged to the moving plate (203), and the hinge axis coincides with the rotation axis of the rotating clamping arm (502) relative to the fixed clamping arm (501). A traction component (210) is installed on the swing arm (207); The traction part (5022) is fixedly disposed relative to the rotating clamp arm (502). The traction part (5022) is inserted into and can slide relative to the traction member (210). The swing arm (207) drives the rotating clamp arm (502) to rotate synchronously so that it fits against the fixed clamp arm (501). The traction member (210) and the traction part (5022) are in a vertically engaged state.

2. The overhead line spacer bar UAV hoisting and release device according to claim 1, characterized in that: The traction member (210) is rotatably engaged with the swing arm (207) via the connecting shaft (211), and the traction member (210) is elastically connected to the swing arm (207) along the circumferential direction of the connecting shaft (211).

3. The overhead line spacer bar UAV hoisting and release device according to claim 2, characterized in that: The swing arm (207) is provided with two sets of limiting posts (214) for limiting and fixing the traction member (210). The limiting posts (214) can move linearly relative to the swing arm (207) along the direction parallel to the hinge axis of the swing arm (207) and the moving plate (203).

4. The overhead line spacer bar UAV hoisting and release device according to claim 1, characterized in that: The rectangular groove-shaped space inside the traction member (210) is designated as the traction part (2071). The traction part (5022) is a columnar protrusion structure formed by one side of the rotating clamp arm (502) protruding outward. The protrusion extends into the traction part (2071) and slides in cooperation with the traction part (2071).

5. The overhead line spacer bar UAV hoisting and release device according to claim 1, characterized in that: A second telescopic unit (213) is provided on one side of the movable plate (203). The tail end of the second telescopic unit (213) is hinged to the movable plate (203), and the telescopic end of the second telescopic unit (213) is hinged to one end of the swing arm (207) near the top plate (202).

6. The overhead line spacer bar UAV hoisting and release device according to claim 5, characterized in that: The top of the movable plate (203) is provided with a mounting base (2031), which passes through a pre-set through slot on the top plate (202), and a first telescopic unit (206) is connected between the two mounting bases (2031).

7. The overhead line spacer bar UAV hoisting and release device according to claim 1, characterized in that: The swing arm (207) is provided with a limit pin (215) at one end near the top plate (202), and the moving plate (203) is provided with a limit groove (2032) through which the limit pin (215) passes. The limit groove (2032) is arc-shaped and its center coincides with the rotation axis of the swing arm (207).

8. The overhead line spacer bar UAV hoisting and release device according to claim 1, characterized in that: The top plate (202) has linear slide rails (205) fixedly connected to both sides of its bottom, and the movable plate (203) is provided with a slider that slides in cooperation with the linear slide rails (205).

9. The overhead line spacer bar UAV hoisting and release device according to claim 1, characterized in that: A lock head (5021) is fixedly connected to the inner side of the rotating clamping arm (502). The lock head (5021) is a columnar structure with a central hole. The inner wall of the fixed clamping arm (501) is provided with a lock hole (5011) that cooperates with the lock head (5021).

10. The overhead line spacer bar UAV hoisting and release device according to claim 9, characterized in that: The fixed clamping arm (501) is elastically provided with a locking unit (7) that cooperates with the lock head (5021). The locking unit (7) is U-shaped in general. Its shorter section is set as a locking pin (702) and is axially aligned with the lock head (5021) inserted into the lock hole (5011). Its longer section is set as an extension (701). The extension (701) passes through the fixed clamping arm (501) and extends to the outer area of ​​the fixed clamping arm (501). One of the moving plates (203) is fixedly connected with a push rod (2033) that cooperates with one end of the locking unit (7) that extends out of the fixed clamping arm (501).

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