Grounding mechanism assembled and disassembled through unmanned aerial vehicle

Abstract

The invention discloses a grounding mechanism assembled and disassembled through an unmanned aerial vehicle, and relates to the technical field of electric power overhaul, the grounding mechanism comprises a mounting seat, the bottom of the mounting seat is provided with a wire groove, the top of the mounting seat is provided with a positioning block used for being in butt joint with the unmanned aerial vehicle, two clamping jaws are symmetrically and rotatably connected to the side wall of the wire groove, and each clamping jaw comprises a jaw part and a handle part which are connected; when the unmanned aerial vehicle is disassembled, the push block is pushed again to drive the push rod to move, then the push rod pushes the end to be still located on the side face of the ejector block on the outer side of the through groove, the ejector block is driven to slide, and the ejector block drives the lock hook fixedly connected with the ejector block to slide; the lock hook drives the lock rod to slide till the lower surface of the lock rod does not make contact with the upper surface of the handle of the clamping jaw any more, unlocking operation is completed, an operator does not get close to the high-voltage bare wire in the mounting and dismounting process, the automation degree of cooperation of the device and an unmanned aerial vehicle is high, time is saved, efficiency is improved, and meanwhile the operation danger coefficient is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power maintenance, and specifically to a grounding mechanism that can be loaded and unloaded by a drone. Background Art

[0002] A grounding wire is a safety tool used to temporarily short-circuit and ground de-energized equipment. Its function is to prevent the equipment from suddenly being energized and the induction voltage generated by adjacent high-voltage energized equipment from harming the human body when performing maintenance or other work on high-voltage equipment. At the same time, it discharges the remaining charge of the de-energized equipment. In some areas of high-voltage lines, there is an insulating layer, and in some areas, bare wires are arranged. During the maintenance operation of bare-wire high-voltage lines, it undoubtedly increases the risk coefficient of the operation for the operator to climb by hand and install the grounding wire clamp on the bare wire.

[0003] For example, a grounding wire clamp disclosed in the publication number CN106654635A includes a clamp body, a fastening screw, a terminal post, and a protective housing. Opposite static jaws and fastening screw holes are provided on the clamp body. The fastening screw is threadedly connected to the fastening screw hole. By rotating the fastening screw, it can move towards the static jaws, thereby clamping the bare cable wire. The protective housing includes a protective layer covering the outer surface of the clamp body, protective films for protecting both ends of the wire-passing cavity, a first protective cover for protecting the side of the wire-passing cavity, and a second protective cover for protecting the terminal post. The protective film is made of an elastic material and is provided with a wire-passing hole for the cable to pass through. The first protective cover and / or the second protective cover is hinged to the protective layer. When in use, the second protective cover is opened, and the grounding device is connected to the terminal post and conductively connected to the bare cable wire through the clamp body. The present invention has a simple structure, is convenient to use, has good safety, strong versatility, and can greatly improve the grounding maintenance efficiency.

[0004] Another example is a grounding wire clamp disclosed in the publication number CN110444931A, which includes a box body. An X-shaped clamping plate is provided inside the box body. The X-shaped clamping plate includes a left clamping plate and a right clamping plate. A first pin shaft is passed through the intersecting position of the left clamping plate and the right clamping plate. A first return spring is provided on the first pin shaft. A transmission member is provided at the upper part of the X-shaped clamping plate. The right side of the bottom of the transmission member is slidably connected to the upper end of the left clamping plate, and the left side of the bottom of the transmission member is slidably connected to the upper end of the right clamping plate. A first through hole is provided on the transmission member, and a screw is provided inside the first through hole. The screw is threadedly connected to the box body, and the upper end of the screw is fixed to the box body and connected to the output shaft of the motor. The screw drives the transmission member to move up and down to open and close the left clamping plate and the right clamping plate. The grounding wire clamp provided in this application has the three-stage force-increasing effect of a gear pair, a screw pair, and a lever, and does not require a motor with a holding function, which reduces the motor capacity, cost, and power consumption. In addition, the clamping process is stable, and the impact force on the wire is also greatly reduced.

[0005] In the prior art such as the above-mentioned patent, the wire clamp has the advantages of simple structure, convenient use, good safety, strong versatility, and can greatly improve the efficiency of grounding maintenance. However, the existing grounding wire clamp technology still relies on manual operation, and there are potential safety hazards in the high-voltage bare wire operation environment. Summary of the Invention

[0006] The purpose of the present invention is to provide a grounding mechanism that can be loaded and unloaded by a drone to solve the deficiencies in the above-mentioned prior art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A grounding mechanism that can be loaded and unloaded by a drone, including a mounting base with a wire groove at the bottom and a positioning block for docking with the drone at the top, two clamping jaws rotatably connected symmetrically to the side wall of the wire groove, each clamping jaw including a claw part and a handle part connected to each other, the lower side of the handle part having an arc-shaped guiding part, two locking rods elastically sliding symmetrically on the mounting base, the two locking rods corresponding to the two clamping jaws one by one, an arc plate vertically sliding on the top of the wire groove, when the high-voltage wire enters the wire groove, it can squeeze the arc plate to make the sliding plate move upward in the wire groove, the arc plate drives the two clamping jaws to rotate and close to clamp the high-voltage wire through a transmission component, the guiding parts of the two claw handles respectively squeeze past the corresponding locking rods, and the two locking rods rebound to lock the corresponding clamping jaws in the state of clamping the high-voltage wire, and a locking release component for sliding the locking rods to release the locking of the two clamping jaws.

[0008] Further, the locking release component includes two pushing blocks horizontally slidably mounted on the positioning block respectively, an elastic member is arranged between the two pushing blocks, push rods are respectively fixedly connected to the two pushing blocks, a support plate is fixedly connected to each push rod, a weight unit includes two guide sleeves fixedly connected to the mounting base respectively, movable rods are vertically slidably connected in the two guide sleeves respectively, weight blocks are fixedly connected to the bottoms of the two movable rods respectively, two sliding members are horizontally slidably connected corresponding to the two movable rods one by one, each sliding member includes a top block and a locking hook fixedly connected through a connecting rod, the top block can be in butt-joint cooperation with the top of the corresponding wire sleeve, the top block can be in butt-joint cooperation with the corresponding push rod, the top block can be supported by the support plate, and the locking hook can be in clamping cooperation with the corresponding locking rod.

[0009] Further, the transmission component includes two connecting plates symmetrically mounted on both sides of the arc plate, two symmetrically distributed toothed plates are vertically slidably mounted on the mounting base, two gears are rotatably mounted on the mounting base, the two gears are symmetrically distributed with the axis of the wire groove, the two gears are meshed with the adjacent toothed plates, and the gears are coaxially fixedly connected to the rotating shafts of the clamping jaws on the same side.

[0010] Further, when the two clamping jaws are in the clamping state, the upper end faces are combined into a continuous arc shape, and the inside of the wire groove is in an arc shape adapted to the outer surface of the high-voltage wire.

[0011] Further, the movable rod is slidably mounted in the guide sleeve with damping in the vertical direction.

[0012] Further, one side of the locking rod close to the guide sleeve is fixedly connected with a telescopic rod. The other end of the telescopic rod is fixedly connected to the side wall of the guide sleeve. A spring is sleeved on the outer wall of the telescopic rod. One end of the spring abuts against the guide sleeve, and the other end abuts against the locking rod. A locking groove for cooperating with the locking hook is provided on the upper surface of the locking rod.

[0013] Further, when the locking hook moves downward along with the movable rod, the hook part of the locking hook is vertically opposite to the locking groove.

[0014] Further, a second elastic member is installed between the top block and the movable rod. When the second elastic member resumes deformation, it drives the top block to move towards the push rod.

[0015] Further, the second elastic member is a compression spring. One end of the compression spring abuts against the movable rod, and the other end abuts against the top block.

[0016] In the above technical solution, a grounding mechanism loaded and unloaded by a drone provided by the present invention, through the existing technology of connecting the drone with the robotic arm, cooperates with the positioning block at the top of the device to facilitate the positioning and clamping of the drone. When the high-voltage wire enters the wire groove, it can squeeze the arc plate to make the arc plate move upward in the wire groove. Under the action of the transmission component, the clamping jaws rotate. When moving to the position where the two claw parts are attached to the outer surface of the bare wire, the arc surfaces of the claw parts of the clamping jaws and the arc surface of the wire groove are in close contact with the bare wire, realizing surface contact, thereby enhancing the conduction efficiency. When the drone performs secondary operations, it pushes the push block again to drive the push rod to move. Then, the push rod pushes the side surface of the top block whose end is still outside the through groove, thereby driving the top block to slide. The top block drives the locking hook fixedly connected thereto to slide, and the locking hook drives the locking rod to slide until the lower surface of the locking rod no longer contacts the upper surface of the handle part of the clamping jaw, completing the unlocking operation. During the installation and removal process, the operator does not approach the high-voltage bare wire, and the degree of automation of the cooperation between the device and the drone is high, saving time and improving efficiency while greatly reducing the operation risk coefficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the present invention; Figure 3 For the present invention Figure 2Enlarged schematic view at position A in the [device / component name]; Figure 4 Schematic view of the state before the robotic arm clamping device of the present invention; Figure 5 Schematic view of the state after the gripper of the present invention clamps the bare wire and before the unmanned aerial vehicle (UAV) detaches; Figure 6 Schematic view of the state after the UAV of the present invention detaches; Figure 7 For the present invention Figure 6 Enlarged schematic view at position B in the [device / component name].

[0019] Explanation of reference numerals: 1. Mounting base; 11. Positioning block; 2. Gripper; 3. Locking rod; 31. Telescopic rod; 32. Spring; 4. Arc plate; 41. Transmission assembly; 411. Connecting plate; 412. Rack; 413. Gear; 5. Locking release assembly; 51. Pushing block; 511. Elastic member; 512. Push rod; 513. Support plate; 52. Counterweight unit; 521. Guide sleeve; 522. Movable rod; 523. Counterweight block; 53. Sliding member; 531. Top block; 5311. Second elastic member; 5312. Compression spring; 532. Locking hook. Detailed implementation manners

[0020] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Please refer to Figures 1-7 , A grounding mechanism for loading and unloading by an unmanned aerial vehicle provided in an embodiment of the present invention includes a mounting base 1, which has a wire groove at the bottom and a positioning block 11 for docking with the unmanned aerial vehicle at the top, two grippers 2, which are symmetrically rotatably connected to the side wall of the wire groove, each gripper 2 includes a connected claw part and a handle part, the lower side of the handle part has an arc-shaped guiding part, an arc plate 4, which is vertically slidably connected to the top of the wire groove, when a high-voltage wire enters the wire groove, it can squeeze the arc plate 4 to make the arc plate 4 move upward in the wire groove, the transmission assembly 41 includes two connecting plates 411 symmetrically installed on both sides of the arc plate 4, two symmetrically distributed racks 412 are vertically slidably installed on the mounting base 1, two gears 413 are rotatably installed on the mounting base 1, the two gears 413 are symmetrically distributed with respect to the axis of the wire groove, the two gears 413 are engaged with the adjacent racks 412, the gears 413 are coaxially fixed with the rotating shafts of the grippers 2 on the same side, when the two grippers 2 are in a clamped state, the upper end faces are combined into a continuous arc-shaped surface, the inside of the wire groove is arranged in an arc-shaped surface, and both are arranged in cooperation with the outer surface radian of the high-voltage wire.

[0022] In the above technical solution, the bare wire contacts the arc plate 4. The drone flies to directly above the high-voltage bare wire under remote control, adjusts the wire groove to face the bare wire, and the drone descends under remote control. During the descent, the bare wire pushes the arc plate 4 to slide upward. The movement of the arc plate 4 drives the movement of the connecting plate 411, and further drives the toothed plate 412 to slide upward. The toothed plate 412 drives the gear 413 meshing with the toothed plate 412 to rotate, and further drives the clamping jaw 2 to rotate. When the positions of the two claw parts move to fit the outer surface of the bare wire, the arc surfaces of the claw parts of the clamping jaw 2 and the arc surface of the wire groove are in close contact with the bare wire, achieving surface contact, and thus enhancing the conduction efficiency.

[0023] Two locking rods 3 are symmetrically and elastically slidably connected to the mounting seat 1. The two locking rods 3 correspond to the two clamping jaws 2 one by one. The two locking rods 3 rebound to lock the corresponding clamping jaws 2 in the state of clamping the high-voltage wire. A telescopic rod 31 is fixedly connected to the side of the locking rod 3 close to the guide sleeve 521. The other end of the telescopic rod 31 is fixedly connected to the side wall of the guide sleeve 521. A spring 32 is sleeved on the outer wall of the telescopic rod 31. One end of the spring 32 abuts against the guide sleeve 521, and the other end abuts against the locking rod 3.

[0024] When the clamping jaw 2 rotates until its handle contacts the lock block, the arc-shaped guiding part of the handle of the clamping jaw 2 contacts the lock block, and thus pushes the lock block to slide along the direction of the telescopic rod 31. When the positions of the two claw parts move to fit the outer surface of the bare wire, the lock block resets under the elastic potential energy of the spring 32, and the lower surface of the lock block fits the upper surface of the clamping handle part, completing the locking of the clamping.

[0025] A lock hook 532 is horizontally slidably installed on the side of the movable rod 522 facing the through groove. A lock groove for cooperating with the lock hook 532 is provided on the upper surface of the locking rod 3.

[0026] Two pushing blocks 51 are respectively horizontally slidably installed on the positioning block 11. An elastic member 511 is arranged between the two pushing blocks 51. Push rods 511 are respectively fixedly connected to the two pushing blocks 51. A support plate 513 is fixedly connected to each push rod 511.

[0027] A counterweight unit 52 includes two guide sleeves 521 respectively fixedly connected to the mounting seat 1. Movable rods 522 are respectively vertically slidably connected in the two guide sleeves 521. Counterweight blocks 523 are respectively fixedly connected to the bottoms of the two movable rods 522.

[0028] Two sliding members 53 are horizontally slidably connected to the two movable rods 522 one by one. Each sliding member 53 includes a top block 531 and a lock hook 532 fixedly connected by a connecting rod. The top block 531 can be in butt joint with the top of the corresponding wire sleeve, the top block 531 can be in butt joint with the corresponding push rod 511, the top block 531 can be supported by the support plate 513, and the lock hook 532 can be in clamping connection with the corresponding locking rod 3.

[0029] In this embodiment, the top block 531 is in the shape of raised characters, and a through groove for avoiding the corresponding top block 531 is provided on the guide sleeve 521. While the top block 531 slides down along with the movable rod 522, the raised position of the top block 531 can slide within the through groove. Under the action of the gravity of the counterweight block 523, the movable rod 522 drives the sliding member 53 to move downward. After moving to the fixed position, the hook portion of the locking hook 532 is inserted into the locking groove of the locking rod 3. When the robotic arm clamps and pushes the block 51 again to drive the push rod 511 to move, the push rod 511 then pushes the side surface of the top block 531 whose end is still outside the through groove, thereby driving the top block 531 to slide. The top block 531 drives the locking hook 532 fixedly connected thereto to slide, and the locking hook 532 drives the locking rod 3 to slide until the lower surface of the locking rod 3 no longer contacts the upper surface of the handle portion of the clamping jaw 2. At this time, the clamping jaw 2 is in the unlocked state. At this time, under the action of the self-weight of the device, the clamping jaw 2 does not separate. When the drone takes off, the clamping jaw 2 will turn open under the thrust of the high-voltage bare wire, its own gravity, and the gravity of the arc plate 4.

[0030] Operating principle: At the work site, by positioning the position of the positioning block 11, the drone equipped with the robotic arm clamps and pushes the block 51. The two pushing blocks 51 move relatively and compress the elastic member 511. The movement of the pushing block 51 drives the push rod 511 fixedly connected thereto to move. The push rod 511 is pushed until the support plate 513 is located below the top block 531. At this time, there is a gap between the upper surface of the support plate 513 and the lower surface of the top block 531. During the continuous movement of the push rod 511, the side surface of the push rod 511 pushes the side surface of the top block 531 to move until the lower surface of the top block 531 no longer blocks the top of the guide sleeve 521. The movable rod 522 and the top block 531 move downward under the action of the gravity of the counterweight block 523 until the upper surface of the support plate 513 fits against the lower surface of the top block 531. The drone flies to directly above the high-voltage bare wire under remote control, adjusts the wire groove to face the bare wire correctly, and the drone descends under remote control. At this time, the two clamping jaws 2 are in an open state under their own gravity and the gravity of the arc plate 4. Subsequently, the bare wire continues to descend and contacts the arc plate 4. During the descent, the bare wire pushes the arc plate 4 to slide upward. The movement of the arc plate 4 drives the connecting plate 411 to move, and then drives the toothed plate 412 to slide upward. The toothed plate 412 drives the gear 413 meshing with the toothed plate 412 to rotate, and then drives the clamping jaw 2 to rotate. The clamping jaw 2 rotates until the handle portion contacts the locking block. The arc-shaped guiding portion of the handle portion of the clamping jaw 2 contacts the locking block, and then pushes the locking block to slide along the direction of the telescopic rod 31. When the positions of the two claw portions fit against the outer surface of the bare wire, the locking block resets under the elastic potential energy of the spring 32, and the lower surface of the locking block fits against the upper surface of the clamping handle portion, completing the locking of the clamping.

[0031] Subsequently, the operator remotely releases the robotic arm and withdraws the drone. After the robotic arm is released, the push block 51 is reset under the elastic potential energy of the elastic member 511. The reset of the push block 51 drives the reset of the push rod 511. As a result, the support plate 513 disengages from the top block 531. The elastic potential energy of the compression spring 5312 is released, causing the side wall of the top block 531 to fit against the side wall of the guide sleeve 521. Under the action of the gravity of the counterweight block 523, the movable rod 522 drives the sliding member 53 to move downward. After moving to the fixed position, the hook portion of the locking hook 532 is inserted into the locking groove of the locking rod 3, and the installation operation is completed, and the power maintenance operation can begin.

[0032] It is worth mentioning that, under the action of the gravity of the counterweight block 523 of the whole device and the downward movement of the counterweight block 523 driven by the movable rod 522 to lower the center of gravity of the device, the positioning block 11 is kept in an upward state, which facilitates the disassembly operation of the drone. After the power maintenance operation is completed, the drone is controlled to reach above the device. The robotic arm clamps the push block 51 and drives the push rod 511 to move. Then, the push rod 511 pushes the side surface of the top block 531 whose end is still outside the through groove, thereby driving the top block 531 to slide. The top block 531 drives the locking hook 532 fixedly connected to it to slide, and the locking hook 532 drives the locking rod 3 to slide until the lower surface of the locking rod 3 no longer contacts the upper surface of the handle of the jaw 2. At this time, the locking release assembly 5 operates effectively. When the drone flies upward, the jaw 2 will turn open under the thrust of the high-voltage bare wire, its own gravity, and the gravity of the arc plate 4, which facilitates the removal of the device, and the operation is completed.

[0033] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A grounding mechanism for loading and unloading by an unmanned aerial vehicle, characterized in that, Comprising: A mounting base, the bottom of which has a wire groove, and a positioning block for docking with a drone is provided on the top; Two clamping jaws, which are symmetrically rotatably connected to the side wall of the wire groove. Each clamping jaw includes a claw part and a handle part connected to each other, and an arc-shaped guiding part is provided on the lower side of the handle part; Two locking rods, which are symmetrically elastically slidably connected to the mounting base, and the two locking rods correspond to the two clamping jaws one by one; An arc plate, which is vertically slidably connected to the top of the wire groove. When the high-voltage wire enters the wire groove, it can squeeze the arc plate to make the arc plate move upward in the wire groove. The arc plate drives the two clamping jaws to rotate and close through a transmission component to clamp the high-voltage wire. The guiding parts of the two claw handles respectively squeeze over the corresponding locking rods, and the two locking rods rebound to lock the corresponding clamping jaws in the state of clamping the high-voltage wire; A locking release component, which is used to make the locking rods slide to release the locking of the two clamping jaws.

2. The grounding mechanism for loading and unloading by an unmanned aerial vehicle according to claim 1, characterized in that, The locking release component includes: Two pushing blocks, which are respectively horizontally slidably mounted on the positioning block. An elastic member is provided between the two pushing blocks. Push rods are respectively fixedly connected to the two pushing blocks, and a supporting plate is fixedly connected to each push rod; A counterweight unit, which includes two guide sleeves respectively fixedly connected to the mounting base. A live rod is vertically slidably connected in each guide sleeve, and a counterweight block is fixedly connected to the bottom of each live rod; Two sliding members, which are horizontally slidably connected corresponding to the two live rods one by one. Each sliding member includes a top block and a locking hook fixedly connected by a connecting rod. The top block can be in butt-joint cooperation with the top of the corresponding wire sleeve, the top block can be in butt-joint cooperation with the corresponding push rod, the top block can be supported by the supporting plate, and the locking hook can be in clamping cooperation with the corresponding locking rod.

3. The grounding mechanism for loading and unloading by an unmanned aerial vehicle according to claim 1, wherein, The transmission component includes two connecting plates symmetrically installed on both sides of the arc plate. Two symmetrically distributed toothed plates are vertically slidably installed on the mounting base. Two gears are rotatably installed on the mounting base. The two gears are symmetrically distributed with respect to the axis of the wire groove. The two gears are meshed with the adjacent toothed plates, and the gears are coaxially fixedly connected to the rotating shafts of the clamping jaws on the same side.

4. The grounding mechanism for loading and unloading by a drone according to claim 1, characterized in that, The inner part of the wire groove is in an arc shape adapted to the outer surface of the high-voltage wire.

5. The grounding mechanism for loading and unloading by an unmanned aerial vehicle according to claim 2, wherein, The live rod is slidably installed in the guide sleeve with damping in the vertical direction.

6. The grounding mechanism for loading and unloading by an unmanned aerial vehicle according to claim 2, wherein One side of the locking rod close to the guide sleeve is fixedly connected with a telescopic rod. The other end of the telescopic rod is fixedly connected to the side wall of the guide sleeve. A spring is sleeved on the outer wall of the telescopic rod. One end of the spring abuts against the guide sleeve, and the other end abuts against the locking rod. A locking groove for cooperating with the locking hook is provided on the upper surface of the locking rod.

7. The grounding mechanism for loading and unloading by a drone according to claim 6, characterized in that, When the locking hook moves downward along with the live rod, the hook part of the locking hook is vertically opposite to the locking groove.

8. The grounding mechanism for loading and unloading by an unmanned aerial vehicle according to claim 2, wherein, A second elastic member is installed between the top block and the live rod. When the second elastic member resumes deformation, it drives the top block to move towards the push rod.

9. The grounding mechanism for loading and unloading by an unmanned aerial vehicle according to claim 8, wherein The second elastic member is a compression spring. One end of the compression spring abuts against the live rod, and the other end abuts against the top block.

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