Automatic grounding wire clamp

Abstract

The invention provides an automatic grounding wire clamp which comprises a grounding wire clamp body, an electric locking mechanism and an execution assembly, the electric locking mechanism comprises a locking sliding block driven by the execution assembly to move, and the execution assembly is started when a locking switch and an unlocking switch are triggered. The locking sliding block is driven to move close to the hook part of the grounding wire clamp main body to form a locking state for locking the cable and to move away from the hook part to form an unlocking state for unlocking the cable; a locking push block is movably arranged at the groove cavity of the hook part, is extruded by the cable sliding into the groove cavity of the hook part, and slides to trigger the locking switch; the upper part of the grounding wire clamp main body is provided with a lifting ring for lifting the unmanned aerial vehicle, the lifting ring can slide along the vertical direction, an unlocking push block is fixed on the lifting ring, and the unlocking switch is triggered when the unlocking push block slides upwards along with the lifting ring. According to the invention, automatic locking and unlocking can be realized in the mounting and dismounting process of the grounding wire clamp.

Description

Technical Field

[0001] The invention relates to the technical field of wiring clamps, and in particular to an automatic grounding wire clamp. Background Art

[0002] When the power supply system and electrical equipment are shut down for maintenance, they need to be temporarily grounded to prevent electric shock accidents to operators caused by sudden power supply to the power outage line or equipment. The grounding clamp is a connection structure used between the grounding wire and the cable.

[0003] Most of the existing grounding wire clamps are provided with a duck tongue at the opening of the hook-shaped bending part on the grounding wire clamp body. The duck tongue is driven by a screw and can clamp the cable together with the bending part or unlock the cable without opening the bending part. Most of these grounding wire clamps are installed in the form of throwing and hanging. After the bending part is hooked on the cable, a person manually holds the insulating rod and brings the top of the insulating rod close to the operating end of the screw. A transmission connection is formed between the connecting piece at the top of the insulating rod and the screw. The insulating rod is manually rotated to drive the screw to drive the duck tongue to a state of clamping the cable. Obviously, this method of manually rotating the screw has the problem of insufficient convenience.

[0004] In actual implementation, although the rotation process of the screw rod can be automated by setting a motor, the grounding wire clamp may fall due to the fact that the bending part is not hooked on the cable in the installation form of throwing and hanging; at this time, the motor on the grounding wire clamp is often damaged by hitting the ground during the fall. In addition, although the installation form of throwing and hanging can also be solved by the hoisting form of drones in the prior art, when the drone hoisting is combined with the form of motor-driven screw rod, the start and stop of the motor still needs to be manually controlled by a remote control. It is difficult to realize the automatic locking of the screw rod by the motor after the grounding wire clamp is in place during the installation process, and the automatic unlocking of the screw rod by the motor after the drone is hoisted in place during the disassembly process. This causes the operator to be distracted from operating the remote control of the motor while operating the drone. However, in actual implementation, the timing of the motor start and stop determines whether the grounding wire clamp can be accurately and efficiently hooked on the cable during the installation process, and whether it can cooperate with the drone to achieve efficient and non-falling unlocking during the disassembly process. Therefore, how to realize the automatic control of the motor during the installation and disassembly of the grounding wire clamp is a problem that needs to be solved urgently. Summary of the invention

[0005] In view of this, an object of the present invention is to provide an automatic grounding clamp to solve or at least partially solve the above-mentioned problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides an automated grounding wire clamp, including a grounding wire clamp body, an electric locking mechanism, and an actuator, wherein the grounding wire clamp body is provided with a plurality of threaded holes, an adapter plate is installed at the threaded holes, the locking switch is threadedly engaged with the adapter plate through a nut carried by the grounding wire clamp body, the grounding wire clamp body is connected to a fixing plate through screws, the fixing plate is provided with a plurality of threaded holes, the unlocking switch is fixedly connected to the threaded holes on the fixing plate through screws, a hook portion is installed on the wiring clamp body, a locking thrust block is movably arranged at the groove cavity of the hook portion, the locking thrust block is squeezed by a cable sliding into the groove cavity of the hook portion, and slides to trigger the locking switch, a lifting ring for drone hoisting is provided on the upper part of the grounding wire clamp body, the lifting ring can slide in a vertical direction, and an unlocking thrust block is fixed on the lifting ring, and the unlocking thrust block triggers the unlocking switch when the unlocking thrust block slides upward with the lifting ring;

[0007] The wiring clamp body is also provided with a locking slider, which is lifted and slidably matched on the grounding clamp body, and the locking slider is driven to slide by the actuator. The electric locking mechanism includes a locking slider driven to slide by the actuator. The actuator is activated when the locking switch and the unlocking switch are respectively triggered, and drives the locking slider to approach the hook part of the grounding clamp body to move to form a locked state of the locking cable, and drives the locking slider away from the hook part of the grounding clamp body to move to form an unlocked state of the unlocking cable.

[0008] Furthermore, the hook portion opening faces downward, the locking slider is located directly below the hook portion opening, and the actuator drives the locking slider to slide upward and downward.

[0009] Furthermore, a vertically arranged track column is fixed to the bottom of the grounding wire clamp body, and the electric locking mechanism also includes a slide seat arranged directly below the locking slider, the slide seat is slidably fitted on the track column, a bidirectional motor is installed on the upper part of the slide seat, and a lifting screw rod that is threadedly fitted with the grounding wire clamp body is coaxially fixed on the upper output shaft of the bidirectional motor, the top end of the lifting screw rod is rotationally fitted with the locking slider, and the locking slider is lifted and slidably fitted on the grounding wire clamp body.

[0010] Furthermore, the lifting screw is also provided with a manual operating part for driving, and the manual operating part includes a driven gear coaxially fixed on the lifting screw, a driving gear rotatably matched with the driven gear for meshing and rotating with the driven gear is provided on the slide, a cross-axis coupling is provided under the slide, a cross-axis coupling extending to the bottom of the slide is coaxially fixed to the bottom of the driving gear, and an operating ring is fixed to the bottom of the cross-axis coupling.

[0011] Furthermore, a guide rod is fixed at the short side of the hook part to guide the cable to slide into the groove cavity of the hook part. From the perspective along the groove length direction of the hook part, the groove bottom contour of the hook part is a circular structure, the outer wall contour of the short side of the hook part is a first arc curve of an arc structure, and the lower edge contour of the guide rod is a two-stage broken line structure formed by a first straight line and a second straight line. With the center of the groove bottom of the hook part as the origin, the first arc curve satisfies the following formula:

[0012]

[0013] Wherein, x is the direction perpendicular to the slot length, y is the direction parallel to the slot length, and R is the radius of the inner wall of the bottom of the hook portion slot;

[0014] The second straight line satisfies the following formula:

[0015] y=0.58x

[0016] The first straight line satisfies the following formula:

[0017] y=0.7x-7.

[0018] Furthermore, the lifting ring is connected to the drone through a connecting assembly, and the connecting assembly includes a vertically arranged connecting rod and a hook plate hinged at the lower end of the connecting rod around a horizontal rotating axis. A locking assembly is provided on the connecting rod, and the hook plate has a free end inclined upward for hanging the lifting ring. The hook plate is locked by the locking assembly on the connecting rod to maintain the lifting state, and the locking assembly can be controlled and unlocked by remote control.

[0019] Furthermore, the connecting rod includes a fixed rod and a rocker arm connected in sequence end to end through a horizontal hinge seat, the axis of the horizontal hinge seat is parallel to the axis of the horizontal rotating shaft, the upper end of the fixed rod is fixed to the drone, and the lower end of the rocker arm is fixed with a support plate, and the locking assembly and the hook plate are both arranged on the support plate.

[0020] Furthermore, a card slot is provided on the hook plate, and the slot is directed upward. The locking assembly is provided with a linear power mechanism and a card block. The linear power mechanism is used to drive the lifting and lowering of the card block. When the hook plate is in a lifting state, the card block descends and slides into the bottom of the card slot to lock the hook plate to maintain the lifting state, and the hook plate is unlocked after the card block slides upward and separates from the card slot.

[0021] Furthermore, a protrusion is fixed at the notch of the clamping slot, and the protrusion abuts against the clamping block when the hook plate is reset to the hoisting state to position the hook plate in the hoisting state.

[0022] Furthermore, the linear motion power mechanism is an unlocking cylinder.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. When installing the grounding wire clamp body, the grounding wire clamp body is hoisted by a drone, and the hook part on the grounding wire clamp body is hooked to the outer periphery of the cable. At this time, under the squeezing effect of the cable, the locking push block at the groove of the hook part triggers the locking switch, so that the electric locking mechanism automatically drives the hook part close to the grounding wire clamp body to move, so as to form a locking state of the locked cable. Compared with the traditional locking of the electric locking mechanism controlled by a remote control, the present invention can trigger the start of the electric locking mechanism at the moment the cable enters the hook part, and has better control over the opening timing of the electric locking mechanism, so that the grounding wire clamp body can be accurately and efficiently hooked on the cable;

[0025] 2. When disassembling the main body of the grounding wire clamp, the lifting ring is driven to slide upwards through the lifting ring of the drone. At this time, the lifting ring drives the unlocking push block to slide synchronously and triggers the unlocking switch. At this time, the electric locking mechanism automatically drives the locking slider to move away from the hook part to form an unlocked state of the unlocking cable. Compared with the traditional method of unlocking the electric locking mechanism by remote control, the present invention can trigger the start of the electric locking mechanism while the lifting ring is lifted by the drone, and better control the opening timing of the electric locking mechanism. Not only is the unlocking process efficient, but it also effectively prevents the problem of the main body of the grounding wire clamp falling due to the early unlocking of the electric locking mechanism before the drone hooks the lifting ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic structural diagram of a grounding clamp body provided by an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of a partial structure of a grounding clamp body provided in an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the main structure of the grounding wire clamp body provided by an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the structure of a hook portion and a guide rod provided in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of the connection state between the grounding wire clamp and the drone provided in an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the structure of a connection assembly provided in an embodiment of the present invention;

[0033] Figure 7 A schematic diagram of the structure of a hook portion provided by an embodiment of the present invention;

[0034] Figure 8 A schematic diagram of the unlocking process of the hook portion provided in an embodiment of the present invention.

[0035] In the figure, 10, grounding wire clamp body; 11, track column; 12, guide rod; 12a, first straight line; 12b, second straight line; 13, lifting ring; 131, unlocking push block; 14, hook part; 14a, first arc curve; 14b, second arc curve; 15, locking push block; 16, locking switch; 17, unlocking switch; 18, electric locking mechanism; 19, slide seat; 20, bidirectional motor; 21, lifting screw rod; 22, locking slider; 23, manual operation part; 24, driven gear; 25, driving gear; 26, cross shaft coupling; 27, operating ring; 28, connecting assembly; 29, fixing rod; 30, swing rod; 301, support plate; 302, unlocking cylinder; 303, card block; 31, hook plate; 311, card slot; 312, protrusion. DETAILED DESCRIPTION

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The enumerated embodiments are only used to explain the present invention and are not used to limit the scope of the present invention.

[0037] Reference Figure 1-Figure 8 The present embodiment provides an automated grounding wire clamp, comprising a grounding wire clamp body 10, an electric locking mechanism 20, and an actuator. The grounding wire clamp body 10 is provided with a plurality of threaded holes, an adapter plate is installed at the threaded holes, the locking switch 16 is threadedly matched with the adapter plate through the nut carried by the grounding wire clamp body 10, the grounding wire clamp body 10 is connected to a fixing plate through screws, the fixing plate is provided with a plurality of threaded holes, the unlocking switch 17 is fixedly connected to the threaded holes on the fixing plate through screws, a hook portion 14 is installed on the wiring clamp body 10, a locking thrust block 15 is movably arranged at the groove cavity of the hook portion 14, the locking thrust block 15 is squeezed by the cable sliding into the groove cavity of the hook portion 14, and slides to trigger the locking switch 16, the upper part of the grounding wire clamp body 10 is provided with a lifting ring 13 for hoisting a drone, the lifting ring 13 can slide in the vertical direction, and an unlocking thrust block 131 is fixed on the lifting ring, and the unlocking thrust block 131 triggers the unlocking switch 17 when the lifting ring 13 slides upward.

[0038] The wiring clamp body 10 is also provided with a locking slider 22, and the locking slider 22 is lifted and slidably matched on the grounding clamp body 10, and the locking slider 22 is driven to slide by the actuator. The electric locking mechanism 18 includes a locking slider 22 driven to slide by the actuator. The actuator is activated when the locking switch 16 and the unlocking switch 17 are triggered respectively, and drives the locking slider 22 to approach the hook part 14 of the grounding clamp body 10 to form a locked state of the locking cable, and drives the locking slider 22 away from the hook part 14 of the grounding clamp body 10 to form an unlocked state of the unlocking cable; the problem of the grounding clamp body 10 falling caused by the electric locking mechanism 18 being unlocked in advance before the drone hooks the lifting ring 13 is effectively prevented.

[0039] The electric locking mechanism 18 can also be connected to a remote control. When the locking switch 16 or the unlocking switch 17 fails, the remote control is used to control the opening and closing of the electric locking mechanism 18. To ensure that the locking switch 16 can be stably triggered, the unlocking unit composed of the locking switch 16 and the locking thrust block 15 can be set into two groups, and they are respectively set at the two groove ends of the hook part 14.

[0040] The actuator for driving the locking slider 22 in the electric locking mechanism 18 may also be an electric cylinder, a pneumatic cylinder or other linear travel mechanism. The locking slider 22 in the electric locking mechanism 18 may also be in the form of rotational sliding, by rotating to the notch of the hook portion 14 or deviating from the notch of the hook portion 14 to form a locked state and an unlocked state respectively. In this embodiment, the actuator may be an existing mechanism that can realize rotational drive, such as a motor.

[0041] like Figure 3 As shown, the hook portion 14 opens downward, and the locking slider 22 is located directly below the opening of the hook portion 14. The actuator drives the locking slider 22 to slide up and down, so that the locking slider 22 forms a locked state and an unlocked state respectively. The hook portion 14 is arranged with the opening facing downward, so that when the hook portion 14 is hooked on the cable, the overall gravity of the grounding wire clamp body 10 allows the cable to stably slide into the inner cavity of the hook portion 14, and decompress the locking thrust block 15 to trigger the locking switch 16.

[0042] like Figure 3As shown, a vertically arranged track column 11 is fixed to the bottom of the grounding clamp body 10, and the electric locking mechanism 18 also includes a slide 19 arranged directly below the locking slider 22, and the slide 19 is slidably matched on the track column 11. A bidirectional motor 20 is installed on the upper part of the slide 19, and a lifting screw 21 that is threadedly matched with the grounding clamp body 10 is coaxially fixed on the upper output shaft of the bidirectional motor 20. The top end of the lifting screw 21 is rotatably matched with the locking slider 22, and the locking slider 22 is lifted and slidably matched on the grounding clamp body 10. The lifting screw 21 is lifted and lowered to push the locking slider 22 up and down, so that the electric locking mechanism 18 is arranged directly below the locking slider 22. On the premise of reducing the arrangement of the counterweight block, the overall center of gravity of the grounding clamp is as much as possible located directly below the hook portion 14, thereby reducing the overall deadweight of the grounding clamp.

[0043] The lifting screw 21 is also provided with a manual operating part 23 for driving. The manual operating part 23 includes a driven gear 24 coaxially fixed on the lifting screw 21. A driving gear 25 that meshes and rotates with the driven gear 24 is rotatably matched on the slide 19. A cross shaft coupling 26 is provided below the slide 19. A cross shaft coupling 26 extending to the bottom of the slide 19 is coaxially fixed to the bottom of the driving gear 25. An operating ring 27 is fixed to the bottom of the cross shaft coupling 26. The manual operating part 23 is used to realize emergency driving of the lifting screw 21 when a mechanical failure occurs in the electric locking mechanism 18. The setting of the cross shaft coupling 26 allows the operating ring 27 to have multi-angle activity space during the rotation process, thereby improving the convenience of manually operating the driving gear 25 to rotate.

[0044] like Figure 4 As shown, a guide rod 12 for guiding the cable to slide toward the groove cavity of the hook portion 14 is fixed at the short side of the hook portion 14. From the perspective of the groove length direction of the hook portion 14, the groove bottom contour of the hook portion 14 is a circular structure, and the circular structure is a half-circle structure. The outer wall contour of the short side of the hook portion 14 is a first arc curve 14a of an arc structure, and the arc curve of the internal opening of the hook portion 14 is a second arc curve 14b. The lower edge contour of the guide rod 12 is a two-stage broken line structure formed by a first straight line 12a and a second straight line 12b, and the first straight line 12a is adjacent to the hook portion 14, and the second straight line 12b is away from the hook portion 14. With the center of the groove bottom of the hook portion 14 as the origin, the first arc curve 14a satisfies the following formula:

[0045]

[0046] Wherein, x is the direction perpendicular to the slot length, y is the direction parallel to the slot length, and R is the radius of the inner wall of the bottom of the hook portion slot;

[0047] The second straight line 12b satisfies the following formula:

[0048] y=0.58x

[0049] The first straight line 12a satisfies the following formula:

[0050] y=0.7x-7.

[0051] like Figure 5 As shown, the present invention is also provided with a connection assembly 28 for hanging the hanging ring 13 of the UAV, and the hanging ring 13 is connected to the UAV through the connection assembly 28, as shown in FIG. Figure 6-Figure 7 As shown, the connection assembly 28 includes a vertically arranged connecting rod and a hook plate 31 hinged at the lower end of the connecting rod around a horizontal rotation axis. The connecting rod is provided with a locking assembly, such as Figure 8 As shown, the hook plate 31 has a free end inclined upward for hanging the lifting ring 13, and the hook plate 31 is locked by the locking assembly on the connecting rod to maintain the lifting state, that is, Figure 8 In addition, the locking assembly is remotely controlled and unlocks the hook plate 31, as shown in the state A; Figure 8 Thereafter, the hook plate 31 can be freely rotated to release the lifting state, such as Figure 8 As shown in the C state.

[0052] The locking assembly can be remotely controlled to unlock the hook plate 31. Therefore, when the grounding clamp and the cable fail to unlock or unlock in time, the locking assembly can be remotely controlled to unlock the hook plate 31, so that the hook plate 31 can be freely rotated to open as shown in FIG. Figure 8 The C state shown in , so that the UAV abandons the hanging ring 13, ensuring the flight safety of the UAV.

[0053] like Figure 6 As shown, the connecting rod comprises a fixing rod 29 and a swing rod 30 which are connected in sequence end to end through a horizontal hinge seat, the axis of the horizontal hinge seat is parallel to the axis of the horizontal rotating shaft, the upper end of the fixing rod 29 is fixed to the UAV, and a support plate 301 is fixed to the lower end of the swing rod 30, and the locking assembly and the hook plate 31 are both arranged on the support plate 301. When the connecting assembly 28 contacts the lifting ring 13 of the grounding wire clamp body 10, the rotation of the swing rod 30 is used to unload energy to prevent the complete rigid collision between the connecting assembly 28 and the lifting ring 13 from causing the UAV to lose balance.

[0054] like Figure 3As shown, the hook plate 31 is provided with a slot 311, and the notch direction of the slot 311 is upward. The locking assembly is provided with a linear power mechanism and a block 303. The linear power mechanism is used to drive the lifting and lowering of the block 303. When the hook plate 31 is in a hoisting state, the block 303 descends and slides into the bottom of the slot 311 to lock the hook plate 31 to maintain the hoisting state, and the block 303 slides upward and separates from the slot 311 to unlock the hook plate 31. The sliding engagement of the slot 311 and the block 303 has lower requirements on processing accuracy and less friction during the unlocking process, which facilitates the sliding separation of the block 303 and the slot 311.

[0055] The notch of the slot 311 is fixed with a protrusion 312, and the protrusion 312 abuts against the block 303 when the hook plate 31 is reset to the lifting state to position the hook plate 31 in the lifting state; when the hook plate 31 is reset, the protrusion 312 of the hook plate 31 can be directly rotated to abut against the block 303, and the block 303 slides into the slot 311, which improves the convenience of resetting the hook plate 31 to the lifting state. In actual implementation, when the hook plate 31 needs to be restored to the lifting state again after emergency unlocking during high-altitude operation, the unlocked hook plate 31 can be reset during the high-altitude operation of the drone; the drone operates the lifting connection assembly 28 to make the outer side of the hook plate 31 abut against the cable, and the hook plate 31 is reset by squeezing the cable to reset, and the protrusion 312 is reset to abut against the block 303, and then locked by the locking assembly, so that the drone does not need to adjust the hook plate 31 after falling and then take off for lifting operation.

[0056] like Figure 7 As shown, the linear power mechanism is an unlocking cylinder 302, which has the advantage of high efficiency and facilitates quick unlocking of the hook plate 31, so that the UAV can jettison the load more quickly. In actual implementation, the linear power mechanism can also adopt other mechanisms that can realize linear motion, such as hydraulic cylinders, electric cylinders or screw slider mechanisms.

[0057] In this embodiment, when installing the grounding clamp body 10, the grounding clamp body 10 is hoisted by an unmanned aerial vehicle, and the hook portion 14 on the grounding clamp body 10 is hooked to the outer periphery of the cable. At this time, under the squeezing action of the cable, the locking push block 15 at the groove of the hook portion 14 triggers the locking switch 16, so that the electric locking mechanism 18 automatically drives the hook portion 14 close to the grounding clamp body 10 to move, so as to form a locking state of the locked cable; compared with the traditional locking of the electric locking mechanism 18 controlled by a remote control, the present invention can trigger the start of the electric locking mechanism 18 at the moment the cable enters the hook portion 14, and better control the opening timing of the electric locking mechanism 18, so that the grounding clamp body 10 can be accurately and efficiently hooked on the cable.

[0058] When disassembling the grounding wire clamp body 10, the lifting ring 13 is driven to slide upward by hoisting the lifting ring 13 through the drone. At this time, the lifting ring 13 drives the unlocking push block 131 to slide synchronously and triggers the unlocking switch 17, so that the electric locking mechanism 18 automatically drives the locking slider 22 to move away from the hook portion 14 to form an unlocked state of the unlocking cable; compared with the traditional method of unlocking the electric locking mechanism 18 by controlling the remote control, the present invention can trigger the start of the electric locking mechanism 18 while the lifting ring 13 is hoisted by the drone, and the opening timing of the electric locking mechanism 18 can be better controlled. Not only is the unlocking process efficient, but it also effectively prevents the grounding wire clamp body 10 from falling due to the electric locking mechanism 18 being unlocked in advance before the drone hooks the lifting ring 13.

[0059] The bidirectional motor 20 is a motor that can rotate forward and reverse in the prior art. When working, the bidirectional motor 20 drives the lifting screw 21 to rotate forward or reverse, so that the lifting screw 21 cooperates with the thread of the grounding wire clamp body 10, and then the lifting screw 21 performs an ascending or descending movement; thereby driving the slide 19 as a whole to rise or fall along the length direction of the track column 11, and driving the locking slider 22 to rise or fall; compared with the traditional driving method that directly forms a screw slider mechanism through a screw rod and a locking slider 22, this driving method cooperates the locking slider 22 with the lifting screw 21 in rotation, and uses the lifting screw 21 itself to push the locking slider 22 to rise and fall, so that the electric locking mechanism 18 is arranged directly below the locking slider 22. On the premise of reducing the arrangement of the counterweight block, the overall center of gravity of the grounding wire clamp is as much as possible located directly below the hook portion 14, thereby reducing the overall deadweight of the grounding wire clamp.

[0060] When the manual operating part 23 is used, the insulating rod is held by hand and hooked into the operating ring 27 by the hook of the insulating rod, and the insulating rod is rotated to drive the operating ring 27 to rotate, thereby driving the driving gear 25 to engage with the driven gear 24 to realize emergency driving of the lifting screw rod 21.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automated grounding clamp, characterized in that: It includes a grounding wire clamp body, an electric locking mechanism, and an actuator. The grounding wire clamp body is provided with a plurality of threaded holes, an adapter plate is installed at the threaded holes, the locking switch is threadedly matched with the adapter plate through the nut carried by the grounding wire clamp body, the grounding wire clamp body is connected to a fixing plate through screws, the fixing plate is provided with a plurality of threaded holes, the unlocking switch is fixedly connected to the threaded holes on the fixing plate through screws, a hook part is installed on the wiring clamp body, a locking thrust block is movably arranged at the groove cavity of the hook part, the locking thrust block is squeezed by the cable sliding into the groove cavity of the hook part, and slides to trigger the locking switch, the upper part of the grounding wire clamp body is provided with a lifting ring for drone hoisting, the lifting ring can slide in the plumb direction, and an unlocking thrust block is fixed on the lifting ring, and the unlocking thrust block triggers the unlocking switch when the unlocking thrust block slides upward with the lifting ring; The wiring clamp body is also provided with a locking slider, which is lifted and slidably matched on the grounding clamp body, and the locking slider is driven to slide by the actuator. The electric locking mechanism includes a locking slider driven to slide by the actuator. The actuator is activated when the locking switch and the unlocking switch are respectively triggered, and drives the locking slider to approach the hook part of the grounding clamp body to move to form a locked state of the locking cable, and drives the locking slider away from the hook part of the grounding clamp body to move to form an unlocked state of the unlocking cable.

2. The automatic grounding clamp according to claim 1, characterized in that: The hook portion opening faces downward, the locking slider is located directly below the hook portion opening, and the actuator drives the locking slider to slide upward and downward.

3. The automatic grounding clamp according to claim 1, characterized in that: A vertically arranged track column is fixed to the bottom of the grounding wire clamp body, and the electric locking mechanism also includes a slide seat arranged directly below the locking slider, the slide seat is slidably fitted on the track column, a bidirectional motor is installed on the upper part of the slide seat, and a lifting screw rod that is threadedly fitted with the grounding wire clamp body is coaxially fixed on the upper output shaft of the bidirectional motor, the top end of the lifting screw rod is rotationally fitted with the locking slider, and the locking slider is lifted and slidably fitted on the grounding wire clamp body.

4. The automatic grounding clamp according to claim 3, characterized in that: The lifting screw is also provided with a manual operating part for driving, and the manual operating part includes a driven gear coaxially fixed on the lifting screw, a driving gear rotatably matched with the driven gear meshing and rotating on the slide, a cross-axis coupling is provided under the slide, a cross-axis coupling extending to the bottom of the slide is coaxially fixed to the bottom of the driving gear, and an operating ring is fixed to the bottom of the cross-axis coupling.

5. An automated grounding clamp according to any one of claims 1 to 4, characterized in that: A guide rod is fixed at the short side of the hook part to guide the cable to slide into the groove cavity of the hook part. From the perspective along the groove length direction of the hook part, the groove bottom contour of the hook part is a circular structure, the outer wall contour of the short side of the hook part is a first arc curve of an arc structure, and the lower edge contour of the guide rod is a two-stage broken line structure formed by a first straight line and a second straight line. With the center of the groove bottom of the hook part as the origin, the first arc curve satisfies the following formula: Wherein, x is the direction perpendicular to the slot length, y is the direction parallel to the slot length, and R is the radius of the inner wall of the bottom of the hook portion slot; The second straight line satisfies the following formula: y＝0.58 The first straight line satisfies the following formula: y＝0.7-7。 6. An automated grounding clamp according to any one of claims 1 to 4, characterized in that: The lifting ring is connected to the drone through a connecting assembly, and the connecting assembly includes a vertically arranged connecting rod and a hook plate hinged at the lower end of the connecting rod around a horizontal rotating axis. A locking assembly is provided on the connecting rod, and the hook plate has a free end inclined upward for hanging the lifting ring. The hook plate is locked by the locking assembly on the connecting rod to maintain the lifting state, and the locking assembly can be controlled and unlocked by remote control.

7. The automatic grounding clamp according to claim 6, characterized in that: The connecting rod comprises a fixed rod and a rocker arm connected in sequence end to end through a horizontal hinge seat, the axis of the horizontal hinge seat is parallel to the axis of the horizontal rotating shaft, the upper end of the fixed rod is fixed to the drone, the lower end of the rocker arm is fixed with a support plate, and the locking assembly and the hook plate are both arranged on the support plate.

8. The automatic grounding clamp according to claim 6, characterized in that: The hook plate is provided with a card slot, the notch of the card slot is facing upward, the locking assembly is provided with a linear power mechanism and a card block, the linear power mechanism is used to drive the lifting and lowering of the card block, when the hook plate is in a hoisting state, the card block descends and slides into the bottom of the card slot to lock the hook plate to maintain the hoisting state, and the hook plate is unlocked after the card block slides upward and separates from the card slot.

9. The automatic grounding clamp according to claim 8, characterized in that: A convex block is fixed at the notch of the clamping slot, and the convex block abuts against the clamping block when the hook plate is reset to the hoisting state to position the hook plate in the hoisting state.

10. The automatic grounding clamp according to claim 8, characterized in that: The linear stroke power mechanism is an unlocking cylinder.

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