CN110444931B - Grounding wire clamp - Google Patents

Grounding wire clamp Download PDF

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Publication number
CN110444931B
CN110444931B CN201910605128.3A CN201910605128A CN110444931B CN 110444931 B CN110444931 B CN 110444931B CN 201910605128 A CN201910605128 A CN 201910605128A CN 110444931 B CN110444931 B CN 110444931B
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CN
China
Prior art keywords
hole
screw rod
pawl
clamping plate
splint
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Application number
CN201910605128.3A
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Chinese (zh)
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CN110444931A (en
Inventor
刘雨欣
梅平
张富伟
许朋波
王金
任普普
刘琦
马佳良
刘波
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State Grid Shandong Electric Power Co Linqu County Power Supply Co
State Grid Corp of China SGCC
Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Shandong Electric Power Co Linqu County Power Supply Co
State Grid Corp of China SGCC
Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Application filed by State Grid Shandong Electric Power Co Linqu County Power Supply Co, State Grid Corp of China SGCC, Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Shandong Electric Power Co Linqu County Power Supply Co
Priority to CN201910605128.3A priority Critical patent/CN110444931B/en
Publication of CN110444931A publication Critical patent/CN110444931A/en
Application granted granted Critical
Publication of CN110444931B publication Critical patent/CN110444931B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/26End pieces terminating in a screw clamp, screw or nut

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  • Clamps And Clips (AREA)

Abstract

The utility model provides an earth clamp, the power distribution box comprises a box body, be equipped with X shape splint in the box, X shape splint include left splint and right splint, first round pin axle is worn to be equipped with by left side splint and the criss-cross position of right splint, first round pin epaxial is equipped with first reset spring, the upper portion of X shape splint is equipped with the driving medium, the right side of driving medium bottom and the upper end sliding connection of left splint, the left side of driving medium bottom and the upper end sliding connection of right splint, be equipped with first through-hole on the driving medium, be equipped with the screw rod in the first through-hole, screw rod and box threaded connection, the upper end of screw rod is fixed on the box and is continuous with the output shaft of motor, the screw rod drives. The application provides a ground clamp has the tertiary reinforcement effect of gear pair screw thread auxiliary lever to need not to adopt the motor of taking to embrace the function, make motor capacity, cost and power consume etc. all reduce to some extent. In addition, the clamping process is stable, and the impact force on the wire is also greatly reduced.

Description

Grounding wire clamp
Technical Field
The invention relates to the technical field of power wire end clamps, in particular to a ground clamp.
Background
Wire end clamps are commonly used technical tools during electrical power construction. At present, a clamping plate of a common wire end clamp adopts a swing type crocodile mouth to connect with a wire clamp, as shown in fig. 1, the wire clamp is composed of a left clamping plate and a right clamping plate, a grounding wire device is arranged on the left plate or the right clamping plate, and the left clamping plate and the right clamping plate which are hinged through a pin shaft are opened and closed through swing. The pin shaft divides the clamping plate into two parts, the front end of the pin shaft is generally called as a clamping handle, the left clamping blade and the right clamping blade are basically the same in length and are correspondingly provided with arc-shaped groove bayonets, and the contact surface is arc-shaped, so that a wire can be better clamped.
The clamp plate of the wire end clamp is used as an actuating mechanism for clamping and releasing the wire, and the opening and closing mode of the clamp plate can be swinging or translation. The opening and closing angle of the translation is larger than that of the swing, but the structure is complex, the volume is larger, the swing structure is simple, and the lever force increasing effect is achieved, so that the required driving force can be reduced.
However, in the actual working process, although the swing structure reduces the required driving force, the swing structure needs manual force to grip or prevent the left and right clamping plates from loosening, the problem of large manual operation amount still exists, the clamping process is not stable, the impact force on the wire in the clamping state is large, and the smooth in-and-out and clamping of the wires with different diameters cannot be ensured.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides the grounding wire clamp which can improve the force increasing effect, is stable in the clamping process and greatly reduces the impact force on a lead.
The invention provides a ground clamp which comprises a box body, wherein an X-shaped clamping plate is arranged in the box body, the X-shaped clamping plate comprises a left clamping plate and a right clamping plate, a first pin shaft penetrates through the crossed position of the left clamping plate and the right clamping plate, a first reset spring is arranged on the first pin shaft, a transmission part is arranged on the upper portion of the X-shaped clamping plate, the right side of the bottom of the transmission part is in sliding connection with the upper end of the left clamping plate, the left side of the bottom of the transmission part is in sliding connection with the upper end of the right clamping plate, a first through hole is formed in the transmission part, a screw rod is arranged in the first through hole and in threaded connection with the box body, the upper end of the screw rod is fixed on the box body and.
Furthermore, the first through hole is a unthreaded hole, the screw rod is in sliding connection with the transmission part, an opening is formed in the front side or the rear side of the transmission part, a pawl is arranged in the opening and is rotatably connected with the transmission part through a second pin shaft, threads matched with the threads of the screw rod are arranged at the lower end of the pawl, and a lever-type pawl triggering mechanism for controlling the pawl to be meshed with or separated from the screw rod is arranged between the pawl and the screw rod.
Furthermore, a second reset spring is arranged between the second pin shaft and the transmission part, one end of the second reset spring is connected with the second pin shaft, and the other end of the second reset spring is abutted against the transmission part.
Furthermore, the lever type pawl triggering mechanism comprises a return block arranged on one side of the pawl, a pull rod is arranged on the upper portion of the return block, the pull rod is pulled, and the return block moves upwards to enable the pawl to be separated from the screw rod.
Further, the upper portion of driving medium one side is equipped with the upper flange, and the lower part of driving medium one side is equipped with down the flange, is equipped with vertical through-hole on the return piece, is equipped with vertical last through-hole on the upper flange, is equipped with vertical lower through-hole on the lower flange, and last through-hole, vertical through-hole and lower through-hole three are on same vertical line, go up corresponding wearing to be equipped with the guide arm on through-hole, vertical through-hole and the lower through-hole.
Furthermore, a first compression spring is sleeved on the guide rod between the return block and the upper flange, and a second compression spring is sleeved on the guide rod between the lower flange and the wall of the box body.
Further, the homing block is disposed between the upper flange and the lower flange.
Further, the upper end of the left splint is provided with a first chute, a first pin is arranged on the right side of the bottom of the transmission part and is connected with the first chute in a sliding manner, a second chute is arranged on the upper end of the right splint, a second pin is arranged on the left side of the bottom of the transmission part and is connected with the second chute in a sliding manner.
Furthermore, the first through hole is a threaded hole, and the transmission part is in threaded connection with the screw rod.
Furthermore, a gear is arranged at one end of the screw rod, which extends out of the first through hole, and the screw rod is connected with an output shaft of the motor through the gear.
The invention has the beneficial effects that:
the invention provides a ground clamp which comprises a box body, wherein an X-shaped clamping plate is arranged in the box body, the X-shaped clamping plate comprises a left clamping plate and a right clamping plate, a screw rod is in threaded connection with the box body between the left clamping plate and the right clamping plate by virtue of a lever principle, a thread pair is formed by threaded connection between the screw rod and the box body, and the screw rod and a nut are screwed to transfer motion and power; the screw rod is connected with an output shaft of the motor through a gear to form a gear pair, so that the whole grounding wire clamp has a three-level boosting effect of a gear pair thread pair lever, and the motor with a holding function is not needed, so that the capacity, the cost, the power consumption and the like of the motor are reduced. In addition, the clamping process is stable, and the impact force on the wire is also greatly reduced.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a ground clip according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a lever type pawl triggering mechanism according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of the pull rod according to an embodiment of the present invention when the pull rod is not pulled.
Fig. 4 is a schematic structural diagram of a pull rod provided in an embodiment of the present invention when the pull rod is pulled.
In the figure, 1, a box body, 2, a left clamping plate, 3, a right clamping plate, 4, a first pin shaft, 5, a first return spring, 6, a transmission part, 7, a screw rod, 8, an opening, 9, a pawl, 10, a second pin shaft, 11, a second return spring, 12, a return block, 13, a pull rod, 14, an upper flange, 15, a lower flange, 16, a guide rod, 17, a first compression spring, 18, a second compression spring, 19, a first sliding groove, 20 and a second sliding groove.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following explains key terms appearing in the present invention.
The application provides a ground clamp, including box 1.
Fig. 1 is a schematic structural diagram of a ground clip according to an embodiment of the present invention. As shown in fig. 1, in order to facilitate observation of the structure in the box body 1, the box body 1 is indicated by a dotted line, an X-shaped clamp plate is arranged in the box body 1, the X-shaped clamp plate comprises a left clamp plate 2 and a right clamp plate 3, a first pin shaft 4 is arranged at the crossed position of the left clamp plate 2 and the right clamp plate 3 in a penetrating manner, and the left clamp plate 2 and the right clamp plate 3 are rotatably connected through the first pin shaft 4.
The first pin shaft 4 is provided with a first return spring 5, and the first return spring 5 is used for keeping the X-shaped clamping plate in an opening initial state.
One end of a first reset spring 5 is connected with the left clamping plate 2, the other end of the first reset spring 5 is connected with the right clamping plate 3, the middle part of the first reset spring 5 is fixed on a first pin shaft 4, when the first reset spring 5 is in an initial state, the left clamping plate 2 and the right clamping plate 3 are in a separated state, and when the first reset spring 5 is compressed, the left clamping plate 2 and the right clamping plate 3 are in a state of clamping a lead. As shown in fig. 1, the broken and solid lines in fig. 1 represent the extreme positions of closing and opening of the X-shaped clamping plates, respectively.
The transmission member 6 is disposed on the upper portion of the X-shaped splint, in this embodiment, the transmission member 6 is in an inverted V shape, and in other embodiments, the transmission member 6 may also be in an inverted U shape.
The right side of driving medium 6 bottom and the upper end sliding connection of left splint 2, the left side of driving medium 6 bottom and the upper end sliding connection of right splint 3.
In this embodiment, as shown in fig. 1, an arc-shaped first sliding groove 19 protruding rightward is formed in the upper end of the left clamping plate 2, a first pin is arranged on the right side of the bottom of the transmission member 6, the first pin is inserted into the first sliding groove 19, and the first pin is slidably connected with the first sliding groove 19; the upper end of the right clamping plate 3 is provided with a left convex arc-shaped second sliding groove 20, the left side of the bottom of the transmission part 6 is provided with a second pin, the second pin is inserted into the second sliding groove, and the second pin is in sliding connection with the second sliding groove 20.
In this embodiment, the transmission member 6 is made of an injection molding.
Be equipped with first through-hole on the driving medium 6, be equipped with screw rod 7 in the first through-hole, nut and 1 threaded connection of box are passed through to the upper end of screw rod 7, and the nut is fixed on the inside wall on box 1 upper portion, and first through-hole is worn out and the output shaft of motor links to each other to the upper end of screw rod 7.
In other embodiments, the first through hole can be a threaded hole, and the screw 7 is inserted into the first through hole and is in threaded connection with the transmission member 6.
For improving the increasing power ratio of the whole machine, one end of the screw 7 extending out of the first through hole is provided with a pair of gear pairs which are not shown in fig. 1, the screw 7 is connected with an output shaft of the motor through a gear, and the screw 7 is connected with the output shaft of the motor through the gear to form a gear pair.
The motor drives the screw rod 7 to rotate, and the screw rod 7 moves up and down through driving the transmission piece 6, so that the opening and closing of the left clamping plate 2 and the right clamping plate 3 are realized.
In this embodiment, the first through hole is a smooth hole, and the screw 7 is inserted into the first through hole and slidably connected with the transmission member 6. In this embodiment, the front side of the transmission member 6 is provided with the opening 8, and in other embodiments, the opening 8 may be provided at the rear side of the transmission member 6.
A pawl 9 is arranged in the opening 8, and the middle of the pawl 9 is rotatably connected with the transmission piece 6 through a second pin shaft 10. A second return spring 11 is arranged between the second pin shaft 10 and the transmission member 6, one end of the second return spring 11 is connected with the second pin shaft 10, and the other end of the second return spring 11 is abutted against the transmission member 6. When the second return spring 11 is in an unstressed state, the pawl 9 and the screw 7 are in an engaged state.
The upper end of the pawl 9 is a pawl handle, the lower end of the pawl 9 is provided with threads matched with the threads of the screw 7, and the pawl 9 can be rotated to realize the engagement and separation of the pawl 9 and the screw 7.
In this embodiment, a lever-type pawl triggering mechanism for controlling the pawl 9 to engage with or separate from the screw 7 is provided between the pawl 9 and the screw 7.
Fig. 2 is a schematic structural view of a lever type pawl triggering mechanism according to an embodiment of the present invention. As shown in fig. 2, the lever-type pawl triggering mechanism comprises a return block 12 arranged on the left side of the pawl 9, a pull rod 13 is fixedly connected to the upper portion of the return block 12, in the actual working process, the pull rod 13 is pulled, the pull rod 13 drives the return block 12 to move upwards, and the return block 12 touches a pawl handle at the upper end of the pawl 9, so that the pawl 9 rotates around a second pin shaft 10, and the pawl 9 is separated from the screw 7.
In the actual working process, considering that the diameter of a clamped wire is between 20 and 40m, the vertical stroke of the transmission piece 6 is required to meet the requirement that the X-shaped clamping plate can be opened and closed to a limit position meeting the requirement, when the wire with the minimum diameter is clamped, the included angle of the X-shaped clamping plate is minimum, namely the transmission piece 6 is at a lower position, at the moment, if the return block 12 is at a higher position, the return block 12 which is not clamped with the wire can contact the pawl 9 to rotate, and is separated from the engagement with the screw 7, so the return block 12 is required to be installed at the position which can not contact the pawl 9 when the wire with the minimum diameter is clamped, namely the installation position of the return block 12 is required to be deviated as far as possible, but if the return block is excessively deviated, when the wire with the thick wire is clamped, the pawl 9 is at the higher position, and the stroke for pulling the. Furthermore, because the screw 7 is vertically arranged, only one end of the screw is used as a support, and the screw 7 is required to have enough rigidity and strength when bearing relatively large axial force and when the left and right forces are unbalanced.
The upper part of one side of the transmission piece 6 is provided with an upper flange 14, the lower part of one side of the transmission piece 6 is provided with a lower flange 15, and the upper flange 14 and the lower flange 15 are arranged on the same side of the transmission piece 6. The index block 12 is disposed between an upper flange 14 and a lower flange 15.
In this embodiment, the upper flange 14 and the lower flange 15 are arranged on the left side of the transmission member 6, and in other embodiments, the upper flange 14 and the lower flange 15 may be arranged on the right side of the transmission member 6.
The return block 12 is provided with a vertical through hole, the upper flange 14 is provided with a vertical upper through hole, the lower flange 15 is provided with a vertical lower through hole, the upper through hole, the vertical through hole and the lower through hole are on the same vertical line, and the upper through hole, the vertical through hole and the lower through hole are correspondingly provided with a guide rod 16 in a penetrating manner.
The guide rods 16 are arranged in the three holes, and the two ends of the guide rods are fixed on the box body 1, so that the uneven force applied to the transmission piece 6 by the guide rods 16 is offset, the requirement on the rigidity and the strength of the guide rods 16 is reduced, and the guide function on the movement of the return block 12 can be realized.
A first compression spring 17 is sleeved on a guide rod 16 between the return block 12 and the upper flange 14, and when the first compression spring 17 is in an original state, the pawl 9 and the screw 7 are in an engaged state. A second compression spring 18 is sleeved on the guide rod 16 between the lower flange 15 and the wall of the box body.
When the transmission element 6 moves downwards, the return block 12 follows the transmission element 6 and rests against the lower flange 15 as far as the spring pressure of the first compression spring 17, and the upper flange 14 can also serve to limit the lifting travel of the return block 12 when the pull rod 13 is pulled, preventing the return block 12 from exceeding the uppermost edge of the pawl 9. Since the insulating cord is connected to the pull rod 13, it is desirable that the minimum force of the first compression spring 17 at least overcome the weight of the entire ground clamp, otherwise the pawl 9 may be disengaged from the screw 7 in advance during installation of the clamp, causing the screw 7 to idle. The second compression spring 2 is used for promoting the transmission piece 6 to move upwards quickly to release the wire by the X-shaped clamp plate.
The working principle of the invention is as follows:
fig. 3 is a schematic structural view of the pull rod 13 according to an embodiment of the present invention when it is not pulled. Fig. 4 is a schematic structural diagram of the pull rod 13 according to an embodiment of the present invention. As shown in fig. 3 and 4, during the clamping and releasing process, when the motor starts the driving screw 7 to rotate, the transmission member 6 moves downwards to drive the X-shaped clamp plate to rotate to clamp the wire, and the motor stops rotating and completes the mechanical action. When the motor rotates reversely, the transmission piece 6 moves upwards, and the X-shaped clamp plate releases the conducting wire. Because the screw transmission has good self-locking performance, the screw transmission can be realized by adopting a common direct current micro motor. In order to improve the force increasing ratio of the whole machine, a pair of gear pairs (not shown in fig. 1) can be added at the extending end of the screw 7, so that the whole machine has the three-stage force increasing effect of the gear pair screw thread pair lever.
The manual release can be realized only by disengaging the transmission member 6 from the screw 7, after the wire is clamped, the transmission member 6 is subjected to a larger acting force, the volume of the transmission member 6 is larger, and the lifting direction is the axial direction of the screw 7, so that the overall radial movement of the transmission member 6 is not easy to realize. This application adopts combination formula loose to put the mechanism, makes the unthreaded hole with the screw hole of driving medium 6, keeps sliding fit with screw rod 7, and 6 front side systems of driving medium have an opening, and the movable pawl 9 of processing screw thread replaces driving medium 6 and screw rod 7 to realize threaded connection to drive driving medium 6 and reciprocate, after pawl 9 and screw rod 7 break away from the meshing, driving medium 6 can slide from top to bottom in screw rod 7. Because the combination mode of the transmission part 6 and the pawl 9 is adopted, the transmission part 6 can adopt an injection molding part, thereby reducing the weight and the processing cost of the whole machine.
In order to conveniently realize the separation of the pawl 9 and the screw 7, a lever-type pawl 9 triggering mechanism is adopted, accessories such as a pull rod 13, a return block 12, a second return spring 11, a first compression spring 17, a second compression spring 18 and the like are additionally arranged in the mechanism, the pawl 9 is connected with the transmission piece 6 through a second pin shaft 10 and is in threaded connection with the screw 7 under the action of the second return spring 11, and the pull rod 13 is connected with the return block 12. When a fault occurs, an operator pulls the pull rod 13 with force, the return block 12 connected to the pull rod 13 moves upwards, the trigger pawl 9 overcomes the elastic force of the second return spring 11 to rotate, the engagement between the pawl 9 and the screw 7 is disconnected, the transmission part 6 moves upwards to drive the X-shaped clamp plate to open and release a wire, after the wire of the wire clamp is clamped, the return block 12 moves downwards, the pawl 9 is engaged with the screw 7 again under the action of the second return spring 11, and the initial state of use is recovered.
The application provides a ground clamp has tertiary reinforcement effect, need not to adopt the motor of taking to embrace the function, makes motor capacity, cost and power consume etc. all reduce to some extent. In addition, the clamping process is stable, and the impact force on the wire is also greatly reduced.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. The utility model provides a ground clamp which characterized in that: the box body (1) is provided with an X-shaped clamping plate in the box body (1), the X-shaped clamping plate comprises a left clamping plate (2) and a right clamping plate (3), a first pin shaft (4) penetrates through the crossed position of the left clamping plate (2) and the right clamping plate (3), a first reset spring (5) is arranged on the first pin shaft (4), a transmission part (6) is arranged on the upper portion of the X-shaped clamping plate, the right side of the bottom of the transmission part (6) is in sliding connection with the upper end of the left clamping plate (2), the left side of the bottom of the transmission part (6) is in sliding connection with the upper end of the right clamping plate (3), a first through hole is formed in the transmission part (6), a screw rod (7) is arranged in the first through hole, the screw rod (7) is in threaded connection with the box body (1), the upper end of the screw rod (7) is fixed on the box body (1) and is connected with an output shaft; the first through hole is a unthreaded hole, the screw rod (7) is in sliding connection with the transmission piece (6), an opening (8) is formed in the front side or the rear side of the transmission piece (6), a pawl (9) is arranged in the opening (8), the pawl (9) is rotatably connected with the transmission piece (6) through a second pin shaft (10), threads matched with the threads of the screw rod (7) are formed in the lower end of the pawl (9), and a lever-type pawl triggering mechanism for controlling the pawl (9) to be meshed with or separated from the screw rod (7) is arranged between the pawl (9) and the screw rod (7).
2. A ground clamp according to claim 1, characterized in that: and a second reset spring (11) is arranged between the second pin shaft (10) and the transmission part (6), one end of the second reset spring (11) is connected with the second pin shaft (10), and the other end of the second reset spring (11) is abutted against the transmission part (6).
3. A ground clamp according to claim 1, characterized in that: the lever type pawl triggering mechanism comprises a return block (12) arranged on one side of a pawl (9), a pull rod (13) is arranged on the upper portion of the return block (12), the pull rod (13) is pulled, and the return block (12) moves upwards to enable the pawl (9) to be separated from the screw rod (7).
4. A ground clamp according to claim 3, characterized in that: the upper portion of driving medium (6) one side is equipped with upper flange (14), and the lower part of driving medium (6) one side is equipped with lower flange (15), is equipped with vertical through-hole on return piece (12), is equipped with vertical last through-hole on upper flange (14), is equipped with vertical lower through-hole on lower flange (15), and upper through-hole, vertical through-hole and lower through-hole three are on same vertical line, and upper through-hole, vertical through-hole and lower through-hole are gone up and are corresponded wear to be equipped with guide arm (16).
5. A ground clamp according to claim 4, characterized in that: a first compression spring (17) is sleeved on a guide rod (16) between the return block (12) and the upper flange (14), and a second compression spring (18) is sleeved on the guide rod (16) between the lower flange (15) and the wall of the box body.
6. A ground clamp according to claim 4, characterized in that: the reset block (12) is arranged between the upper flange (14) and the lower flange (15).
7. A ground clamp according to claim 1, characterized in that: the upper end of left splint (2) is equipped with first spout (19), is equipped with first pin on the right side of driving medium (6) bottom, first pin and first spout (19) sliding connection, and the upper end of right splint (3) is equipped with second spout (20), is equipped with the second pin on the left side of driving medium (6) bottom, second pin and second spout (20) sliding connection.
8. A ground clamp according to claim 1, characterized in that: the first through hole is a threaded hole, and the transmission piece (6) is in threaded connection with the screw rod (7).
9. A ground clamp according to claim 1, characterized in that: and a gear is arranged at one end of the screw rod (7) extending out of the first through hole, and the screw rod (7) is connected with an output shaft of the motor through the gear.
CN201910605128.3A 2019-07-05 2019-07-05 Grounding wire clamp Active CN110444931B (en)

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Application Number Priority Date Filing Date Title
CN201910605128.3A CN110444931B (en) 2019-07-05 2019-07-05 Grounding wire clamp

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CN201910605128.3A CN110444931B (en) 2019-07-05 2019-07-05 Grounding wire clamp

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CN110444931A CN110444931A (en) 2019-11-12
CN110444931B true CN110444931B (en) 2020-10-30

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112350086B (en) * 2020-11-30 2021-11-23 中国南方电网有限责任公司超高压输电公司南宁局 Cross locking type anti-drop grounding wire clamp for power line

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