Ground wire quick chuck and ground wire device

Abstract

The invention relates to the technical field of electric power operation and maintenance auxiliary equipment, and provides a ground wire quick chuck and a ground wire device, and the ground wire quick chuck comprises a chuck body which comprises a pair of clamping parts with openable and closable clamping openings; the elastic mechanism is used for closing the clamping opening; the actuating mechanism is used for opening the clamping opening; the trigger connecting rod comprises a pair of trigger rods arranged at the clamping opening and a pair of locking parts; the ends of the trigger rods are hinged, and the other ends of the trigger rods are hinged to the two clamping parts respectively. The locking part is formed at the position, close to the hinge point, of the trigger rod; when the clamping opening is opened to a first state, the trigger rod is in a straight line and abuts against the locking part, and when the clamping opening is closed, the first hinge point moves away from the opening direction of the clamping opening; according to the arrangement, alignment of the clamping opening and the cable is easy; the clamping opening is controlled to be closed by touching the triggering rod through a cable, complex operation is not needed, and the hooking success rate is high; and the elastic mechanism pulls the clamping part to clamp the cable, so that the hooking reliability is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary equipment for power operation and maintenance, and particularly relates to a quick clamp for a grounding wire and a grounding wire device. Background Art

[0002] In the power system, the grounding wire is an important tool to ensure the safety of staff when unexpected voltage appears on the de-energized equipment and lines. During the maintenance and repair of power equipment or cable lines, it is necessary to ensure the reliable grounding of the power equipment or cable lines to prevent the dangerous voltage generated by sudden power-on or the induced voltage generated by adjacent lines from causing harm to the human body. At the same time, it is also used to discharge the remaining charge of the de-energized equipment or lines to avoid electric shock accidents for operators.

[0003] Portable short-circuit grounding wires are mainly used at the power line work site, and the grounding wires are manually connected. The traditional grounding wire connection tool adopts an operating rod type, which is composed of several insulating rods and a grounding wire clamp.

[0004] In the related art, the grounding wire clamps mainly include screw clamping type, spring tongue clamping type, ratchet self-locking type, etc.

[0005] However, in actual applications, the grounding wire clamp is at the end of the insulating rod. According to different working conditions, the insulating rod often has a length of 6 - 8 meters. The grounding wire clamps in the related art have low action accuracy, difficult operation, low connection success rate, and it is difficult to ensure the connection reliability. Summary of the Invention

[0006] The embodiments of the present invention provide a quick clamp for a grounding wire and a grounding wire device, which are used to solve the problems in the prior art that the grounding wire clamp has low action accuracy, difficult operation, and it is difficult to ensure sufficient clamping with the cable, and have the advantages of simple operation, high connection success rate, and stable and reliable connection.

[0007] The present invention provides a quick clamp for a grounding wire, including:

[0008] A clamp body is provided with a grounding wire connection point. The clamp body includes a pair of clamping parts, and an openable and closable clamping mouth is formed between the pair of clamping parts;

[0009] An elastic mechanism is used to drive the pair of clamping parts to move to close the clamping mouth;

[0010] An actuating mechanism is used to drive the pair of clamping parts to move to open the clamping mouth;

[0011] The trigger link is arranged at the clamping opening and includes a pair of trigger rods and a pair of locking parts; one ends of the pair of trigger rods are hinged to form a first hinge point, and the other ends are respectively hinged to the two clamping parts; the pair of locking parts are respectively formed at positions of the pair of trigger rods close to the first hinge point;

[0012] When the clamping opening is opened to the first state, the pair of trigger rods are on a straight line and the pair of locking parts are in contact with each other, and when the clamping opening is closed, the moving direction of the first hinge point is away from the opening direction of the clamping opening.

[0013] According to a quick clamp for a grounding wire provided by the present invention, the clamping part includes a clamping head and a driving arm, and a pair of clamping parts are hinged to form a second hinge point, the second hinge point is located between the clamping head and the driving arm, and the clamping opening is formed between the two clamping heads.

[0014] According to a quick clamp for a grounding wire provided by the present invention, the actuating mechanism includes a chute and a sliding pin;

[0015] The chute is arranged on the driving arm and extends along the length direction of the driving arm;

[0016] The sliding pin is embedded in the chute and can move towards or away from the second hinge point in a first direction. When the clamping opening is in a closed state, at least part of the extending direction of the chute forms an angle with the first direction.

[0017] According to a quick clamp for a grounding wire provided by the present invention, the first direction is the angular bisector direction of the two driving arms.

[0018] According to a quick clamp for a grounding wire provided by the present invention, it further includes a housing, and the clamping head is exposed at the top end of the housing;

[0019] A guiding groove extending along the first direction is arranged on the housing, and the sliding pin passes through the guiding groove and can slide along the guiding groove.

[0020] According to a quick clamp for a grounding wire provided by the present invention, the elastic mechanism includes a tension spring; one end of the tension spring is connected to the sliding pin, and the other end is connected to the bottom of the housing; the elastic force direction of the tension spring is parallel to the sliding direction of the sliding pin.

[0021] According to a quick clamp for a grounding wire provided by the present invention, the chute includes a first section, a second section and a third section connected in sequence, and the first section is close to the clamping head;

[0022] When the clamping opening is in a closed state, the angle between the first section and the first direction is greater than the angle between the second section and the first direction, and the third section extends along the first direction.

[0023] A grounding wire quick clamp provided by the present invention further includes an unlocking member drivingly connected to the sliding pin.

[0024] According to a grounding wire quick clamp provided by the present invention, the unlocking member comprises:

[0025] An unlocking handle, hinged to the outside of the housing, comprising a first portion and a second portion arranged at an angle, a hinge point being located between the first portion and the second portion, and the second portion extending in a direction away from the clamping opening;

[0026] A transmission rod is hinged to one end of the second part away from the first part, and one end of the transmission rod away from the second part is hinged to the sliding pin.

[0027] According to a grounding wire quick clamp provided by the present invention, a threaded adapter is fixedly connected to one end of the shell away from the clamping head.

[0028] The present invention also provides a grounding wire device, comprising an extension rod and the grounding wire quick clamp connected to the end of the extension rod.

[0029] According to a grounding wire device provided by the present invention, the extension rod is threadedly connected to the threaded adapter of the grounding wire quick clamp.

[0030] The present invention provides a grounding wire quick clamp and a grounding wire device. When the grounding wire is hung on the cable, the grounding wire is first installed at the grounding wire connection point, and then the actuating mechanism drives a pair of clamping parts to move to open the clamp. During this process, a pair of trigger rods rotate and unfold around a first hinge point. When the pair of trigger rods are in a straight line and a pair of locking parts abut against each other, a dead point of the mechanism is formed. At this time, the clamp is opened to the maximum state, and locked under the action of the dead point of the mechanism, so that the clamp remains in the maximum open state. Then the clamp can be installed on the insulating rod, and the clamp body together with the grounding wire is lifted toward the position of the cable through the insulating rod, and the clamp moves toward the direction of the cable.

[0031] Since the trigger link is located at the clamp, the trigger rod will touch the cable when the clamp moves toward the cable. During this process, the cable will exert a force on the trigger rod to make the trigger rod rotate and fold around the first hinge point, and the dead point will fail. Under the action of the elastic mechanism, a pair of clamping parts are pulled to move to close the clamp, thereby clamping the cable to achieve grounding. Compared with the related art, during the hanging process, the clamp is always in the maximum open state, which makes it easier to align with the cable, and the closing of the clamp is controlled by the cable touching the trigger rod. There is no need for complicated operations, and the success rate of hanging is high. The clamping part is pulled by the elastic mechanism to clamp the cable, so the reliability of the hanging is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 This is one of the structural schematic diagrams of the grounding wire quick clamp provided by an embodiment of the present invention;

[0034] Figure 2 This is the second structural schematic diagram of the grounding wire quick clamp provided by the embodiment of the present invention;

[0035] Figure 3 It is a schematic structural diagram of a clamping portion provided in an embodiment of the present invention.

[0036] Reference numerals:

[0037] 1. Clamp body; 10. Ground wire connection point; 11. Clamping part; 110. Clamping head; 111. Driving arm; 112. Fixed pin hole; 2. Elastic mechanism; 3. Actuating mechanism; 30. Slide groove; 300. First section; 301. Second section; 302. Third section; 31. Sliding pin; 4. Trigger link; 40. Trigger rod; 41. Bump; 42. Protrusion; 5. Shell; 50. Clearance hole; 51. Guide groove; 6. Fixed pin; 7. Unlocking member; 70. Unlocking handle; 700. First part; 701. Second part; 71. Transmission rod; 8. Threaded adapter; 9. Extension rod. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In order to facilitate the understanding of the grounding wire quick clamp and the grounding wire device provided by the present invention, the application background thereof is first explained. The grounding wire is an important tool for ensuring the safety of workers when voltage unexpectedly appears on equipment and lines that have been powered off. Portable short-circuit grounding wires are mainly used at power line work sites, and are manually hung. Traditional grounding wire hanging tools adopt an operating rod type, and the operating rod is composed of a plurality of insulating rods and a grounding wire clamp. In the related art, the grounding wire clamps mainly include spiral clamping type, spring tongue clamping type and ratchet self-locking type.

[0040] However, in practical applications, the grounding wire clamp is at the top of the insulating rod. According to different working conditions, the insulating rod often has a length of 6 - 8 meters. When the staff holds the insulating rod by hand on the ground for hanging and connecting operations, this results in low action precision of the grounding wire clamp, difficult operation, low hanging and connecting success rate, and it is difficult to ensure the stability of the hanging and connecting.

[0041] Based on the above, the present invention provides a quick grounding wire clamp and a grounding wire device, which have the advantages of simple operation, high hanging and connecting success rate, and stable and reliable hanging and connecting.

[0042] The following Figures 1 - 3 describes the quick grounding wire clamp and the grounding wire device of the present invention.

[0043] Referring to Figure 1 and Figure 2 , a quick grounding wire joint includes a chuck body 1, an elastic mechanism 2, an actuating mechanism 3 and a trigger link 4; wherein, a grounding wire connection point 10 is provided on the chuck body 1, which is suitable for providing a connection position for the grounding wire. The grounding wire connection point 10 can be set in a hole shape or other structures, as long as the stable connection of the grounding wire can be achieved; the chuck body 1 includes a pair of clamping parts 11, and an openable and closable clamping mouth is formed between the pair of clamping parts 11 for clamping or loosening the cable; the elastic mechanism 2 is used to drive the pair of clamping parts 11 to move to close the clamping mouth; the actuating mechanism 3 is used to drive the pair of clamping parts 11 to move to open the clamping mouth.

[0044] The trigger link 4 is arranged at the clamping mouth, and it includes a pair of trigger rods 40 and a pair of locking parts; wherein, one ends of the pair of trigger rods 40 are hinged to form a first hinge point, and the other ends are respectively hinged to the two clamping parts 11. When the clamping mouth is opened, the pair of trigger rods 40 will rotate and unfold around the first hinge point, and when the clamping mouth is closed, the pair of trigger rods 40 will rotate and fold around the first hinge point.

[0045] A pair of locking parts are respectively formed at positions of the pair of trigger rods 40 close to the first hinge point. When the clamping mouth is opened to the first state, the pair of trigger rods 40 are on a straight line and the pair of locking parts are in contact with each other, forming a dead point of the mechanism to keep the clamping mouth in an open state, and when the clamping mouth is closed, the movement direction of the first hinge point is away from the opening direction of the clamping mouth.

[0046] In practical applications, first, a grounding wire is installed at the grounding wire connection point 10. Then, the actuating mechanism 3 drives a pair of clamping parts 11 to move, causing the jaws to open. During this process, a pair of trigger rods 40 rotate and unfold around the first hinge point. When the pair of trigger rods 40 are in a straight line and a pair of locking parts are in contact with each other, a dead point of the mechanism is formed. At this time, the jaws are opened to the maximum state, and locking is achieved under the action of the dead point of the mechanism, keeping the jaws in the maximum open state. Then, the chuck can be installed on the insulating rod, and the chuck body 1 together with the grounding wire is held high towards the position of the cable through the insulating rod, and the jaws are moved towards the direction of the cable.

[0047] Since the trigger link 4 is located at the jaws, the trigger rod 40 will touch the cable during the process of the jaws moving towards the cable. During this process, the cable will exert a force on the trigger rod 40, causing the trigger rod 40 to rotate and fold around the first hinge point, and the dead point fails. Under the action of the elastic mechanism 2, a pair of clamping parts 11 are pulled to move, closing the jaws, thereby clamping the cable to achieve grounding. Compared with the related technology, during the hanging process, the jaws are always in the maximum open state, making it easier to align with the cable. And by the cable touching the trigger rod 40 to control the closing of the jaws, no complex operation is required, and the hanging success rate is high. By the elastic mechanism 2 pulling the clamping parts 11 to clamp the cable, the reliability of the hanging is ensured.

[0048] Specifically, a convex block 41 is provided at a position of one trigger rod 40 close to the first hinge point, forming one of the locking parts. A protrusion 42 is formed at the end of the other trigger rod 40, forming the other locking part. When the jaws are opened to the first state, the protrusion 42 and the convex block 41 are in contact with each other, forming a dead point of the mechanism, and preventing the trigger link 4 from folding towards the opening direction of the jaws through a shape - matching method.

[0049] Of course, the locking parts are not limited to the above - mentioned shape, formation method, and formation position. Specifically, they can be selected according to actual needs, as long as when the jaws are in the maximum open state, a pair of locking parts are in contact with each other to form a dead point of the mechanism and prevent the trigger link 4 from folding towards the opening direction of the jaws.

[0050] Refer to Figure 1 and Figure 2 As shown in [relevant figure numbers], the grounding wire quick - chuck further includes a housing 5. The housing 5 constitutes the support of the entire device and can provide connection positions for each component; the clamping part 11 includes a clamping head 110 and a driving arm 111. Two clamping parts 11 are hinged to form a second hinge point, which is located between the clamping head 110 and the driving arm 111. The jaws are formed between the two clamping heads 110. By the mutual approach or separation of the two clamping parts 11, the two clamping heads 110 can be driven to approach or separate from each other, realizing the opening and closing of the jaws.

[0051] Specifically, a fixed pin 6 is fixedly connected inside the housing 5. The fixed pin 6 extends along the radial direction of the housing 5 and is fixedly connected to the opposite side walls of the housing 5 at both ends. The clamping head 110 of the clamping part 11 extends out of the top end of the housing 5, and the driving arm 111 is placed inside the housing 5. A fixed pin hole 112 is provided between the clamping head 110 and the driving arm 111. The fixed pin 6 sequentially passes through the fixed pin holes 112 of the two clamping parts 11 and is rotationally matched with the fixed pin holes 112, so that the two clamping parts 11 are both rotationally connected to the housing 5, thereby realizing the hinge fit between the two clamping parts 11.

[0052] Strip-shaped relief holes 50 are formed in the opposite sides of the housing 5. The extending direction of the relief holes 50 is parallel to the axis of the housing 5 and its position corresponds to the position of the driving arm 111. When the clamping opening is opened and closed, the strip-shaped relief holes 50 can provide relief for the movement of the driving arm 111, so that the driving arm 111 has sufficient movement space. During the process of closing the clamping opening, the two driving arms 111 move towards each other and finally fold inside the housing 5. During the process of opening the clamping opening, the two driving arms 111 move away from each other and extend out of the housing 5 through the strip-shaped relief holes 50.

[0053] In order to control the opening of the clamping opening, referring to Figure 2 and Figure 3 , the actuating mechanism 3 includes a chute 30 and a sliding pin 31. Among them, the chute 30 is arranged on the driving arm 111 and extends along the length direction of the driving arm 111. The sliding pin 31 is embedded in the chute 30 and can move towards or away from the second hinge point along the first direction. When the clamping opening is in the closed state, the extending direction of at least part of the chute 30 forms an angle with the first direction.

[0054] When the clamping opening is in the closed state, since the extending direction of at least part of the chute 30 forms an angle with the first direction, when the sliding pin 31 slides, it will exert a force on the driving arm 111, forcing the driving arm 111 to rotate around the second hinge point. When the sliding pin 31 moves towards the second hinge point, it will force the two driving arms 111 to move away from each other around the second hinge point, opening the clamping opening; when the sliding pin 31 moves away from the second hinge point, it will force the two driving arms 111 to move towards each other around the second hinge point, closing the clamping opening.

[0055] Specifically, the sliding pin 31 is located on the angular bisector of the two driving arms 111, and the above-mentioned first direction is the angular bisector of the two driving arms 111. When the sliding pin 31 approaches the second hinge point along the first direction, it forces the two driving arms 111 to move away from each other to open the clamping opening. When the sliding pin 31 moves away from the second hinge point along the first direction, it forces the two driving arms 111 to move towards each other to close the clamping opening.

[0056] Specifically, a guiding groove 51 is formed in the housing 5, and the extending direction of the guiding groove 51 is parallel to the axis of the housing 5; the sliding pin 31 is inserted into the guiding groove 51 and is in sliding fit with the guiding groove 51; the guiding groove 51 can limit and guide the sliding of the sliding pin 31 to ensure that the clamping jaws can be opened and closed stably.

[0057] Specifically, the elastic mechanism 2 includes a tension spring. One end of the tension spring is fixedly connected to the sliding pin 31, and the other end is connected to the bottom of the housing 5. The elastic force direction of the tension spring is parallel to the sliding direction of the sliding pin 31; when the sliding pin 31 moves towards the second hinge point to open the clamping jaws, the tension spring undergoes elastic deformation; when the trigger link 4 touches the cable, the cable applies a force to the trigger rod 40 to cause the trigger rod 40 to rotate and fold around the first hinge point, and the dead point of the mechanism fails. Under the pulling of the tension spring, the sliding pin 31 moves in the direction away from the second hinge point. Due to the interaction between the sliding pin 31 and the sliding groove 30, the driving arm 111 will be forced to move during the sliding of the sliding pin 31, so that the clamping jaws are closed to lock the cable.

[0058] Specifically, the sliding groove 30 includes a first section 300, a second section 301, and a third section 302 that are connected in sequence; wherein, the first section 300 is close to the clamping head 110; in the state where the clamping jaws are closed, the angle between the first section 300 and the first direction is greater than the angle between the second section 301 and the first direction, and the third section 302 extends along the first direction.

[0059] With such a setting, since the angle between the first section 300 and the first direction is relatively large, the driving arm 111 can swing by a large amplitude when the sliding pin 31 moves a small distance, and the clamping jaws can be quickly opened or closed; the angle between the second section 301 and the first direction is relatively small, and the configuration is a force-saving lever, which can close the clamping jaws tightly; and the third section 302 extends along the first direction. After the sliding pin 31 is pulled into the third section 302 under the action of the tension spring, the sliding pin 31 no longer applies a force to the driving arm 111, and the interaction force between the driving arm 111 and the sliding pin 31 when the driving arm 111 swings is perpendicular to the first direction. That is to say, the force applied by the driving arm 111 to the sliding pin 31 has no component force in the first direction. Therefore, the sliding pin 31 will not slide along with the swing of the driving arm 111, realizing the locking of the driving arm 111, thereby realizing the self-locking of the clamping jaws. At this time, the clamping force has nothing to do with the elastic force of the tension spring, and the self-locking state can only be released by applying a force to the sliding pin 31 along the first direction. In this way, the closed clamping jaws are not affected by external factors such as vibration, improving the reliability.

[0060] For the convenience of unlocking, refer to Figure 1 and Figure 2, the ground wire quick chuck further includes an unlocking member 7 that is drivingly connected to the sliding pin 31. After the construction is completed, the sliding pin 31 can be driven by the unlocking member 7 to slide along the first direction, completing the unlocking and driving the clamping opening to open. At this time, the separation of the chuck body 1 from the cable can be achieved.

[0061] Specifically, the unlocking member 7 includes an unlocking handle 70 and a transmission rod 71. Among them, the unlocking handle 70 is hinged outside the housing 5, and it includes a first part 700 and a second part 701 arranged at an angle. The hinge point is between the first part 700 and the second part 701, and the second part 701 extends in a direction away from the clamping opening. The transmission rod 71 is hinged to one end of the second part 701 away from the first part 700, and one end of the transmission rod 71 away from the second part 701 is hinged to the sliding pin 31.

[0062] When unlocking, rotate the unlocking handle 70. The first part 700 of the unlocking handle 70 moves in a direction away from the clamping head 110, and the second part 701 of the unlocking handle 70 moves in a direction towards the clamping head 110. The transmission rod 71 will exert a component force along the first direction on the sliding pin 31, causing the sliding pin 31 to slide along the guide groove 51. The sliding pin 31 disengages from the third section 302 of the sliding groove 30 to achieve unlocking. During the process of sliding along the second section 301 and the first section 300 of the sliding groove 30, it will force the driving arm 111 to move, opening the clamping opening. At this time, the separation of the chuck body 1 from the cable can be achieved.

[0063] Specifically, both ends of the fixed pin 6 are exposed outside the housing 5, and the unlocking handle 70 is hinged to the housing 5 through the fixed pin 6. The unlocking member 7 simplifies the structure and realizes lightweight by reusing the fixed pin 6 and the guide groove 51 on the housing 5, making it easier to operate and carry.

[0064] In a specific application scenario, the staff can hold an insulating tool to hook and pull the unlocking handle 70 to achieve unlocking.

[0065] In another embodiment, the unlocking member 7 may further include an insulating rope. One end of the insulating rope is fixedly connected to the unlocking handle 70, and the other end hangs down to the ground. The staff can achieve unlocking and open the clamping opening by pulling the insulating rope, realizing the separation of the chuck body 1 from the cable.

[0066] Specifically, a threaded adapter 8 is fixedly connected to one end of the housing 5 away from the clamping head 110, facilitating the connection of the ground wire quick chuck and extension components such as an insulating rod.

[0067] Next, the ground wire device provided by the present invention will be described. The ground wire device described below can be mutually referred to with the ground wire quick chuck described above.

[0068] Refer to Figure 1 and Figure 2, a ground wire device, comprising an extension rod 9 and the above-mentioned ground wire quick clamp connected to the end of the extension rod 9.

[0069] Among them, the extension rod 9 is made of insulating material, and the ground wire quick connector is connected to the end of the extension rod 9 through a threaded adapter 8.

[0070] The innovation point of the present invention lies in that: the dead point of the mechanism formed by the trigger link 4 can keep the clamping mouth in an open state. The trigger link 4 is arranged at the clamping mouth. During the process of the clamping mouth moving towards the cable, the trigger rod 40 will touch the cable. During this process, the cable will exert a force on the trigger rod 40 to make the trigger rod 40 rotate around the first hinge point, and the dead point fails. Under the action of the elastic mechanism 2, a pair of clamping parts 11 are pulled to move to close the clamping mouth, so as to clamp the cable to achieve grounding. Compared with the related technology, during the hanging process, the clamping mouth is always in the maximum open state, which is relatively easy to align with the cable. And the closing of the clamping mouth is controlled by the cable touching the trigger rod 40, without complex operations, and the hanging success rate is high. The reliability of the hanging is ensured by the elastic mechanism 2 pulling the clamping part 11 to clamp the cable.

[0071] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick clamp for a grounding wire, characterized in that, it includes: A chuck body (1) provided with a grounding wire connection point (10), including a pair of clamping parts (11), and a closable and openable clamping mouth is formed between the pair of clamping parts (11); An elastic mechanism (2) for driving the pair of clamping parts (11) to move to close the clamping mouth; An actuating mechanism (3) for driving the pair of clamping parts (11) to move to open the clamping mouth; A trigger link (4) arranged at the clamping mouth, including a pair of trigger rods (40) and a pair of locking parts; one ends of the pair of trigger rods (40) are hinged to form a first hinge point, and the other ends are respectively hinged to the two clamping parts (11); the pair of locking parts are respectively formed at positions of the pair of trigger rods (40) close to the first hinge point; When the clamping mouth is opened to the first state, the pair of trigger rods (40) are in a straight line and the pair of locking parts are in contact with each other, and when the clamping mouth is closed, the movement direction of the first hinge point is away from the opening direction of the clamping mouth.

2. The quick clamp for a grounding wire according to claim 1, characterized in that, The clamping part (11) includes a clamping head (110) and a driving arm (111), and the pair of clamping parts (11) are hinged to form a second hinge point, and the second hinge point is located between the clamping head (110) and the driving arm (111), and the clamping mouth is formed between the two clamping heads (110).

3. The quick clamp for a grounding wire according to claim 2, characterized in that, The actuating mechanism (3) includes a chute (30) and a sliding pin (31); The chute (30) is arranged on the driving arm (111) and extends along the length direction of the driving arm (111); The sliding pin (31) is embedded in the chute (30) and can move along a first direction towards or away from the second hinge point. In the state where the clamping mouth is closed, at least part of the extension direction of the chute (30) forms an angle with the first direction.

4. The quick clamp for a grounding wire according to claim 3, characterized in that, It further includes a housing (5), and the clamping head (110) is exposed at the top end of the housing (5); A guiding groove (51) extending along the first direction is arranged on the housing (5), and the sliding pin (31) passes through the guiding groove (51) and can slide along the guiding groove (51).

5. The quick clamp for a grounding wire according to claim 4, characterized in that, The elastic mechanism (2) includes a tension spring; one end of the tension spring is connected to the sliding pin (31), and the other end is connected to the bottom of the housing (5); the elastic force direction of the tension spring is parallel to the sliding direction of the sliding pin (31).

6. The quick clamp for a grounding wire according to claim 5, characterized in that, The chute (30) includes a first section (300), a second section (301) and a third section (302) connected in sequence, and the first section (300) is close to the clamping head (110); When the clamping opening is in a closed state, the included angle between the first section (300) and the first direction is greater than the included angle between the second section (301) and the first direction, and the third section (302) extends along the first direction.

7. The quick clamping head for a grounding wire according to claim 6, characterized in that, it further comprises an unlocking member (7) in transmission connection with the sliding pin (31).

8. The quick clamping head for a grounding wire according to claim 7, characterized in that, the unlocking member (7) comprises: an unlocking handle (70), hinged outside the housing (5), including a first part (700) and a second part (701) arranged at an included angle, the hinge point being between the first part (700) and the second part (701), and the second part (701) extending in a direction away from the clamping opening; a transmission rod (71), hinged to the end of the second part (701) far from the first part (700), and the end of the transmission rod (71) far from the second part (701) is hinged to the sliding pin (31).

9. The quick clamping head for a grounding wire according to claim 4, characterized in that, a threaded adapter (8) is fixedly connected to the end of the housing (5) far from the clamping head (110).

10. A grounding wire device, characterized in that, it further comprises an extension rod (9), and a quick clamping head for a grounding wire as described in any one of claims 1-9 connected to the end of the extension rod (9).

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