Grounding clamp

Abstract

This invention relates to the technical field of grounding fixtures for high-altitude operations, and discloses a grounding clamp comprising a first clamp body, a second clamp body, an elastic structure, and a collision rod. The second clamp body is rotatably connected to the first clamp body. The elastic force of the elastic structure drives the second clamp body and the first clamp body to maintain a clamped state to hold the target conductor. The tail end of the collision rod is rotatably connected to the first clamp body, and the head end is abutting against the second clamp body to maintain an open state or insert into an avoidance groove. One of the first and second clamp bodies has a hollowed-out groove at its head end. When clamped, the head end of the other clamp body enters the hollowed-out groove, causing the two clamp bodies to be misaligned and clamped. The elastic structure drives the two clamp bodies to continuously misalign until the conductor is clamped, and it can firmly clamp conductors with smaller outer diameters. Furthermore, by introducing a rotary joint, the first clamp body and the support rod can rotate freely, achieving a wider grounding protection range. A dual redundancy design of electric control and manual control is achieved through an electric tightening mechanism.

Description

Technical Field

[0001] This invention relates to the technical field of grounding fixtures for high-altitude operations, and in particular to a grounding clamp. Background Technology

[0002] In order to ensure the personal safety of workers during high-altitude electrical work, grounding clamps are needed to ground the conductors. Grounding clamps are key tools for ensuring grounding safety during high-altitude work.

[0003] Current traditional grounding clamps mostly adopt a fixed specification structure design, which can only accommodate conductors within a single outer diameter range. For example... Figure 1 As shown, when a grounding clamp adapted for thick conductors is used to clamp thin conductors, in traditional grounding clamps, even after the two front tongues used to guide the conductors in are fully closed, the clamping hole formed is still larger than the diameter of the thin conductor, resulting in a lack of tight contact. This can easily lead to problems such as excessive contact resistance, poor grounding, or even ineffective grounding. This reduces the efficiency of high-altitude operations and poses significant safety hazards, making it necessary to replace the grounding clamp with one of the appropriate specifications according to the conductor thickness during actual operations.

[0004] Therefore, how to securely clamp conductors of different outer diameters has become a pressing technical problem to be solved in the field of grounding equipment for high-altitude operations. Summary of the Invention

[0005] The technical problem to be solved by this invention is: how to achieve a firm clamping of wires with different outer diameters.

[0006] To solve the above-mentioned technical problems, the present invention provides a grounding clamp, comprising: a first clamp body; a second clamp body rotatably connected to the first clamp body; an elastic structure connecting the second clamp body and the first clamp body, the elastic force of the elastic structure driving the second clamp body and the first clamp body to maintain a clamped state, the first clamp body or the second clamp body being electrically connected to a ground wire, and the second clamp body having a clearance groove; a collision rod, one end of which is rotatably connected to the first clamp body, and the other end of which can abut against the second clamp body to keep the first clamp body and the second clamp body in an open state, and the other end of which can also be inserted into the clearance groove; wherein, the first clamp body and the second clamp body have a hollow groove at their head end, and when the first clamp body and the second clamp body are clamped, the head end of the other clamp body enters the hollow groove.

[0007] In one embodiment, the grounding clamp further includes a support rod. The first clamp body is connected to the first end of the support rod. A rotary joint is provided between the first clamp body and the support rod. The rotary joint includes a rotating shaft and two end face gears. One end face gear is connected to the first clamp body, and the other end face gear is connected to the support rod. The two end face gears rotate relative to each other. A plurality of radial teeth are provided on the meshing surfaces of the two end face gears.

[0008] In one embodiment, the rotating shaft is a lifting eye bolt, and a nut is fixed on the first clamp. The lifting eye bolt passes through two end face gears and is threadedly connected to the nut. When the lifting eye bolt and nut are loosened, the two end face gears disengage and rotate freely. When the lifting eye bolt and nut are tightened, the radial teeth of the two end face gears engage and are fixed.

[0009] In one embodiment, the grounding clamp further includes an electric tightening mechanism. One end of the electric tightening mechanism is connected to a support rod, and the other end is connected to the tail end of the second clamp body via a tightening rope. The electric tightening mechanism is used to pull the tail end of the second clamp body so that the second clamp body opens relative to the first clamp body.

[0010] In one embodiment, the electric tightening mechanism is an electric push rod, the fixed end of which is connected to the first clamp, one end of the tightening rope is connected to the tail end of the second clamp, and the other end of the tightening rope is connected to the telescopic end of the electric push rod.

[0011] In one embodiment, a lifting ring is provided on the telescopic end of the electric actuator, which is used to connect a tightening rope.

[0012] In one embodiment, the lifting ring is threadedly connected to the telescopic end of the electric actuator.

[0013] In one embodiment, the fixed end of the electric actuator is detachably connected to the support rod.

[0014] In one embodiment, the electric tightening mechanism is an electric reel, which is fixed on the first clamp. The electric reel includes a motor, a reducer, and a reel, and the tightening rope is wound around the reel.

[0015] In one embodiment, the reducer is a planetary reducer.

[0016] Compared with existing technologies, the grounding clamp of this invention has the following advantages: the first ends of the two clamping bodies are respectively designed as a solid structure and a hollow structure, and the solid structure can enter the hollow structure. Therefore, when opened, both the solid and hollow structures can guide the wire. When closed, because the solid structure can enter the hollow structure, the first and second clamping bodies are misaligned and clamped under the action of the elastic structure. Even if the outer diameter of the wire is small, the elastic structure can still drive the first and second clamping bodies to continuously misalign until the wire is clamped. Even if the diameter of the wire is small, a firm clamping can be achieved.

[0017] In a further embodiment, by introducing a rotary joint for structural optimization, the free rotation of the first clamp and the support rod is ensured, thereby achieving a wider grounding protection range.

[0018] In another embodiment, a dual redundancy design of electric and manual control is achieved through an electric tightening mechanism, which provides convenience while retaining the original operating method and provides reliable structural support for high-altitude grounding operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a conventional grounding clamp, as exemplarily shown in an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of a grounding clamp as exemplarily shown in an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram illustrating the structure of an electric push rod for a grounding clamp, as exemplarily shown in an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of a grounding clamp as exemplarily shown in an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the rotating joint of a grounding clamp, as exemplarily shown in an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram illustrating the structure of an electric reel for a grounding clamp, as exemplarily shown in an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram illustrating the wiring of a grounding clamp tightening rope, as exemplarily shown in an embodiment of the present invention.

[0026] Figure label: 1. Grounding clamp; 2. Conductor; 11. First clamp body; 12. Second clamp body; 13. Elastic structure; 14. Collision rod; 15. Support rod; 16. Rotary joint; 17. Electric push rod; 18. Electric reel; 19. Tightening rope; 20. Grounding wire; 111. Bearing; 121. Clearance groove; 151. Radial hole; 161. Shaft; 162. End face gear plate; 171. Telescopic end; 172. Fixed end; 173. Lifting ring; 181. Motor; 182. Reducer; 183. Reel; 1621. Radial toothed pattern. Detailed Implementation

[0027] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0028] It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish clips of the same type from one another. For example, without departing from the scope of this application, a first clip may also be referred to as a second clip, and similarly, a second clip may also be referred to as a first clip. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0029] In order to ensure the personal safety of workers during high-altitude electrical work, grounding clamps are needed to ground the conductors. Grounding clamps are key tools for ensuring grounding safety during high-altitude work.

[0030] Currently, most traditional grounding clamps adopt a fixed specification structure design, which can only be used for conductors with a single outer diameter range. In actual operation, it is necessary to replace the grounding clamp with the corresponding specification according to the thickness of the conductor.

[0031] An exemplary conventional grounding clamp, such as Figure 1 As shown, the two clamping bodies of a traditional grounding clamp are rotatably connected, and the two front tongues are used to guide the wire into the clamping area when it is opened. The tail of the clamping body is connected to the ground wire.

[0032] When a grounding clamp adapted for thick wires is used to clamp thin wires, the clamping hole formed after the two front tongues are fully closed has a preset inner diameter. If the preset inner diameter does not match, for example, if it is still larger than the diameter of the thin wire, it will cause the clamp and the wire to not make close contact, which can easily lead to problems such as excessive contact resistance, poor grounding, or even ineffective grounding. This not only reduces the efficiency of high-altitude operations, but also poses significant safety hazards.

[0033] Therefore, how to securely clamp conductors of different outer diameters has become a pressing technical problem to be solved in the field of grounding equipment for high-altitude operations.

[0034] Based on this, such as Figure 2 As shown, a preferred embodiment of the present invention provides a grounding clamp 1, which includes: a first clamp body 11, a second clamp body 12, an elastic structure 13, and a collision rod 14.

[0035] The second clamp 12 is rotatably connected to the first clamp 11. The elastic structure 13 connects the second clamp 12 and the first clamp 11. The elastic force of the elastic structure 13 drives the second clamp 12 and the first clamp 11 to maintain a clamped state. The first clamp 11 or the second clamp 12 is electrically connected to the ground wire 20. The second clamp 12 is provided with a relief groove 121. One end of the collision rod 14 is rotatably connected to the first clamp 11. The other end of the collision rod 14 can abut against the second clamp 12 so that the first clamp 11 and the second clamp 12 are kept open. The other end of the collision rod 14 can also be inserted into the relief groove 121.

[0036] Among them, the first clamp 11 and the second clamp 12 have a hollowed-out groove at their head end. When the first clamp 11 and the second clamp 12 are clamped together, the head end of the other clamp enters the hollowed-out groove.

[0037] It is understood that, in this invention, as Figure 2 As shown, the clearance groove 121 on the second clamp 12 is used to avoid the collision rod 14. Figure 4 As shown, when the first clamp 11 and the second clamp 12 open, the head end of the collision rod 14 abuts against the second clamp 12 to maintain the open state. Guided by the head ends of the two clamps, the wire 2 strikes the collision rod 14, causing the collision rod 14 to rotate and disengage from the second clamp 12. After disengaging, the collision rod 14 can extend from the clearance groove 121, no longer obstructing the clamping tendency of the first clamp 11 and the second clamp 12. The unobstructed first clamp 11 and the second clamp 12 close to clamp the wire 2.

[0038] And such Figure 2 As shown, when the first clamp 11 and the second clamp 12 are closed, since one clamp can enter the hollow groove of the other clamp, the first clamp 11 and the second clamp 12 are misaligned and clamped under the action of the elastic structure 13. Even if the outer diameter of the wire 2 is small, the elastic structure 13 can drive the first clamp 11 and the second clamp 12 to continue to misalign and clamp until the wire 2 is clamped. Since there is less interference between the two clamps, the grounding clamp 1 is adapted to wires 2 with different outer diameters.

[0039] It is understood that, in this invention, either the first clamping body 11 or the second clamping body 12 may have a hollowed-out groove at its head end. The accompanying drawings of this invention use the example of the first clamping body 11 having a hollowed-out groove at its head end, but this is not intended to limit the scope of protection of this invention; both configurations are applicable to this invention.

[0040] Preferably, considering that the second clamping body 12 has a relief groove 121, in order to ensure structural strength, the first clamping body 11 can be selected with a hollow groove at its head. Since the first clamping body 11 does not have a relief groove 121, the hollow groove can be set to be longer, so as to further improve the clamping range of the first clamping body 11 and the second clamping body 12.

[0041] In a further embodiment, such as Figure 2 As shown, a limiting part can be provided at the head end of the collision rod 14. When the grounding clamp 1 is opened, the limiting part can reduce the risk of the collision rod 14 sliding when it comes into contact with the second clamp 12.

[0042] In this invention, the elastic structure 13 can be one or more of a tension spring, a compression spring, and a torsion spring, or a combination thereof.

[0043] When performing high-altitude grounding work, there are not only difficulties in matching the equipment, but also a series of entry permit procedures are required before entering the work area to install the grounding clamp 1. This results in excessively long working time and seriously affects work efficiency.

[0044] Therefore, in one embodiment of the present invention, as Figure 2 As shown, the grounding clamp 1 may also include a support rod 15, and the first clamp body 11 is connected to the first end of the support rod 15.

[0045] Because of the presence of the support rod 15, the operator can operate outside the station. By holding the support rod 15, the operator can remotely connect the conductor 2 to the grounding clamp 1 to achieve grounding outside the station. This eliminates the need for the prior station entry permit procedure. The station entry permit procedure can be applied for while the operation is being carried out, and the clamp can be removed after the operation is completed.

[0046] When emergency work is required, this solution eliminates the risk of unauthorized contact with other lines and enables rapid grounding for off-site maintenance.

[0047] It is understood that in this invention, the ground wire 20 can be connected to the first clamp 11 or the second clamp 12. Both clamps can form an electrical connection with the target wire 2, so there is no need to distinguish which clamp is used as the carrier, depending on the actual needs.

[0048] The connection between the ground wire 20 and the clamp can be fixed to the clamp by pressing the terminal on the ground wire 20 and then threading it into the clamp.

[0049] During testing, the inventors discovered that when working at close range, the clamp can be swung around freely, but when working at long distance, the angle is easily mismatched, and the wire within the operating range cannot be grounded. Even if it is clamped, the contact area is insufficient or it may even fall off directly because there is an angle between the grounding clamp 1 and the wire 2.

[0050] Therefore, in a further embodiment, such as Figure 4 and Figure 5 As shown, a rotary joint 16 is provided between the first clamping body 11 and the support rod 15. The rotary joint 16 includes a rotating shaft 161 and two end face gear disks 162. One end face gear disk 162 is connected to the first clamping body 11, and the other end face gear disk 162 is connected to the support rod 15. The two end face gear disks 162 rotate relative to each other. Several radial teeth 1621 are provided on the meshing surfaces of the two end face gear disks 162.

[0051] The rotating joint 16 allows the first clamp 11 and the second clamp 12 as a whole to rotate freely with the support rod 15. The end face toothed disc 162 has a large rotational friction, which can firmly lock the rotation and reduce the risk of deviating from the preset angle.

[0052] Furthermore, the introduction of the rotary joint can adapt to the grounding requirements of conductors in different directions, allowing for a wider range of target conductors to be grounded, thus providing a broader grounding protection range and optimizing the grounding workflow.

[0053] It is understood that the end face toothed disk 162 has different specifications, such as different diameters and different numbers of teeth. In this invention, end face toothed disks 162 with different diameters and different numbers of teeth all fall within the protection scope of this invention.

[0054] To further enhance convenience, in one embodiment of the present invention, as follows: Figure 5 As shown, the rotating shaft 161 can be a lifting eye bolt, and a nut is fixed on the first clamp 11. The lifting eye bolt passes through the two end face gears 162 and is threadedly connected to the nut. When the lifting eye bolt and nut are loosened, the two end face gears 162 disengage and rotate freely. When the lifting eye bolt and nut are tightened, the radial teeth 1621 of the two end face gears 162 engage and are fixed.

[0055] Eye bolts offer several advantages. When angle adjustments are needed, the eye 173 provides a large lever arm, facilitating manual adjustment. Furthermore, when not in use, eye bolts provide a reliable suspension point, making them easy to store and retrieve for future use.

[0056] Moreover, compared to manufacturing other hand-tightening bolts using molds, directly selecting the 173 eye nut not only provides higher structural strength but also significantly reduces production costs. It is suitable for low-cost retrofitting of existing work tools, reducing subsequent maintenance costs.

[0057] It is understood that, for ease of use and storage, the nut is preferably fixed to the first clamping body 11 in this invention, and there are several possible fixing methods. One method is to directly weld the metal nut to the first clamping body 11. Another feasible method is to open a polygonal hole corresponding to the nut on the first clamping body 11, and then perform axial positioning or welding, thereby reducing the torsional stress on the weld point.

[0058] Further use revealed that while reducing and optimizing installation time can decrease operating time, a series of preparatory and licensing procedures are still required.

[0059] To significantly reduce unnecessary time costs and improve convenience, in one embodiment of the present invention, the grounding clamp 1 further includes an electric tightening mechanism. One end of the electric tightening mechanism is connected to the support rod 15, and the other end is connected to the tail end of the second clamp 12 through the tightening rope 19. The electric tightening mechanism is used to pull the tail end of the second clamp 12 so that the second clamp 12 opens relative to the first clamp 11.

[0060] An electric tightening mechanism connected to the tail end of the first clamp 11 is used to remotely pull the tightening rope 19, and then further pull the tail end of the second clamp 12. This allows disassembly work to be carried out without entering the station, which not only reduces the operation time of disassembling the grounding clamp 1, but also allows the work to be completed without entering the station because it can be disassembled remotely. Therefore, no station entry permit is required, which greatly shortens the overall operation time.

[0061] The electric tightening mechanism has a variety of feasible specific structures and installation positions, which are exemplified in this invention.

[0062] In one embodiment of the present invention, the electric tightening mechanism can be an electric push rod 17, the fixed end 172 of the electric push rod 17 is connected to the first clamp 11, one end of the tightening rope 19 is connected to the tail end of the second clamp 12, and the other end of the tightening rope 19 is connected to the telescopic end 171 of the electric push rod 17.

[0063] In this design, the electric push rod 17 is mounted on the first clamp 11. By adjusting the installation angle, the electric push rod 17 can either push the tightening rope 19 to pull the second clamp 12, or it can pull the second clamp 12 directly, thus electrically opening the first clamp 11 and the second clamp 12. Regardless of the installation method, the first clamp 11 and the second clamp 12 remain clamped or tend to be clamped by the elastic force of the elastic mechanism 13.

[0064] Based on this, the electric actuator 17, battery pack, control unit, and other components can be packaged as a whole and then connected to the first clamp 11, such as... Figure 4 As shown, the electric actuator 17, battery pack, control unit and other components are packaged into a cylinder and connected to the first clamp 11. At this time, the support rod is only connected to the first clamp 11. No matter how the rotary joint 16 rotates, it will not interfere with the use of the electric actuator 17, and has high control precision.

[0065] Meanwhile, components such as the electric actuator 17, battery pack, and control unit are packaged into modules, which facilitates later maintenance and allows for complete replacement, reducing maintenance and preparation time.

[0066] Furthermore, the electric push rod 17 in this embodiment can be controlled by remote wire control or remote control, such as by pairing it with a wireless remote controller of 433MHz, 2.4GHz or other frequencies, or by extending the remote control line to the end of the operating rod for control, all of which fall within the protection scope of this invention.

[0067] like Figure 2 and Figure 3As shown, in another embodiment, the electric tightening mechanism can be an electric push rod 17, which is connected to the support rod 15 to indirectly connect to the first clamp 11. The support rod 15 has a hollow structure, and a radial hole 151 is provided at one end of the support rod 15 near the first clamp 11. One end of the tightening rope 19 is connected to the tail end of the second clamp 12, and the other end of the tightening rope 19 passes through the radial hole 151 into the support rod 15 and is connected to the telescopic end 171 of the electric push rod 17. The fixed end 172 of the electric push rod 17 is connected to the end of the support rod 15 away from the first clamp 11.

[0068] It is understood that the electric push rod 17 is a combination of the motor 181 and the lead screw, which has both pushing and pulling functions. In this embodiment of the invention, the pulling function is used.

[0069] The hollow support rod 15 can pass through the tightening rope 19, and the radial hole 151 directly provides the entrance for the tightening rope 19. The tightening rope 19, fixed at the tail end of the second clamp 12, enters the interior of the support rod 15 through the radial hole 151 and is then connected to the telescopic end 171 of the electric push rod 17. Since the fixed end 172 of the electric push rod 17 is connected to the other end of the support rod 15, when the electric push rod 17 retracts, it can pull the tightening rope 19 further into the support rod 15. Since the support rod 15 and the first clamp 11 are connected, the tightening rope 19 can pull the tail end of the second clamp 12 to rotate relative to the first clamp 11, and the rotation tends to overcome the direction of the elastic structure 13, that is, the opening direction of the grounding clamp 1, so as to achieve the purpose of detaching the conductor 2 at a distance.

[0070] It is understood that the tightening rope 19 in this invention can be a steel wire rope, aramid rope, nylon rope, Dyneema braided rope, etc.

[0071] In an optional embodiment of the present invention, a protective ring can be provided on the radial hole 151. Due to the angle, friction inevitably occurs between the tightening rope 19 and the radial hole 151, leading to wear. The presence of the protective ring can significantly reduce the friction between the radial hole 151 and the tightening rope 19, thereby improving the service life of the tightening rope 19.

[0072] Based on this, the protective ring can be made of low-friction, wear-resistant materials such as Teflon, polyoxymethylene, nylon, polyetheretherketone, graphite copper sleeve, ceramics, etc. Any material used falls within the protection scope of this invention.

[0073] Furthermore, the specifications of the electric push rod 17 are determined based on the dimensions of the first clamp 11 and the second clamp 12. The effective extension length of the electric push rod 17 is strongly related to the movement distance required for the tightening rope 19 to pull the first clamp 11 and the second clamp 12 apart, and the specific length depends on the actual product specifications. This invention does not impose specific restrictions on this, and any electric push rod 17 of any specification should fall within the protection scope of this invention.

[0074] Understandably, the electric actuator 17 is a mature single device with high replaceability. Therefore, the solution of using the electric actuator 17 can directly replace the whole device when the electric actuator 17 is damaged, with low maintenance cost and difficulty.

[0075] There are several ways to connect the electric actuator 17 and the support rod 15. In a relatively simple connection method, the size of the fixed end 172 of the electric actuator 17 is larger than the inner diameter of the support rod 15, while the size of the telescopic end 171 is smaller than the inner diameter of the support rod 15. Therefore, when the electric actuator 17 is working, the fixed end 172 abuts against the outside of the support rod 15, and its supporting force can effectively resist the tightening force of the tightening rope 19.

[0076] In another feasible embodiment, the fixed end 172 of the electric push rod 17 may be provided with a connection hole, through which it is connected to the support rod 15.

[0077] Regardless of the connection method used, and whether it is remote or near-end installation, the electric actuator 17 and its encapsulation module maintain a certain degree of independence, have high replaceability, and are easy to maintain and care for.

[0078] In addition, when there is insufficient power or when working in an environment without electricity, the electric push rod 17 can be manually pulled, which in turn pulls the tightening rope 19 to open and close the first clamp 11 and the second clamp 12.

[0079] Furthermore, the present invention also provides a connection structure between the tightening rope 19 and the electric push rod 17. In one embodiment of the present invention, a hanging ring 173 is provided on the telescopic end 171 of the electric push rod 17, and the hanging ring 173 is used to connect the tightening rope 19. The addition of the hanging ring 173 facilitates the fixed connection of the tightening rope 19.

[0080] In addition, when there is no power input or the electric actuator 17 is damaged, the electric actuator 17 can be bypassed and the lifting ring 173 can be pulled manually to achieve manual opening and closing. The advantage of this operation is that the electric actuator 17 will not be subjected to force, reducing the risk of internal damage to the electric actuator 17 caused by human intervention.

[0081] To facilitate later maintenance and repair, in one embodiment of the present invention, the lifting ring 173 is threadedly connected to the telescopic end 171 of the electric actuator 17. This threaded connection allows for quick assembly and disassembly of the lifting ring 173 and the telescopic end 171. This design means that when replacing the electric actuator 17, it is not necessary to untie the tightening rope 19; replacement can be achieved simply by tightening the threads. It is understood that the lifting ring 173 also provides a good lever arm, making tightening relatively easy.

[0082] In addition, the fixed end 172 of the electric actuator 17 is detachably connected to the support rod 15, also to reduce the assembly and disassembly process.

[0083] Furthermore, the present invention also provides another electrically operated tightening mechanism, such as... Figure 4 and Figure 6 As shown, in one embodiment of the present invention, the electric tightening mechanism is an electric reel 18, which is fixed on the first clamp 11. The electric reel 18 includes a motor 181, a reducer 182 and a reel 183, and the tightening rope 19 is wound on the reel 183.

[0084] By designing an electric reel 18 near the first clamp 11, the layout of tightening the rope 19 through structures such as radial holes 151 is no longer necessary, reducing the force transmission path, making the structure more compact, and improving transmission efficiency.

[0085] The combination of the reducer 182 and the motor 181 can provide a large torque in a small volume in order to adapt to different elastic structures 13.

[0086] Thanks to the elastic structure 13 between the first clamp 11 and the second clamp 12, the electric reel 18 only needs to provide the force to pull the rope in, while the force to release the rope can be provided by the elastic structure 13.

[0087] Regardless of whether the electric tightening mechanism adopts the form of an electric push rod 17 or an electric reel 18, it can be packaged into a module with components such as the battery pack and control unit, and then detachably connected to the first clamp to form a module that is easy to replace as a whole.

[0088] For example, the control unit may include one or more of the following: a motor drive, a signal receiver, an angle sensor, a distance sensor, etc.

[0089] In an optional embodiment, the reducer 182 is a planetary reducer 182. The planetary reducer 182 has the advantages of small size and high reduction ratio, and is preferably suitable for the structure of the electric reel 18 in this invention.

[0090] It is understood that, in this invention, the tightening rope 19, which is led out by the electric reel 18 or the electric push rod 17, can be directly connected to the second clamp 12.

[0091] In another embodiment, such as Figure 7 As shown, a bearing 111 can also be provided at the tail end of the first clamping body 11, such as... Figure 7 As indicated by the dotted arrow in the diagram, the tightening rope 19, which is led out by the electric reel 18 or the electric push rod 17, winds around the bearing 111 and then connects to the second clamp 12. This is used to adjust the rope output direction of the electric reel 18 and reduce wear between components.

[0092] This invention provides a grounding clamp 1, whose structure includes a first clamping body 11, a second clamping body 12, and a collision rod 14. An elastic structure 13 adapts to conductors 2 with different outer diameters, and the linkage function of the collision rod 14 optimizes clamping accuracy. In the first clamping body 11 and the second clamping body 12, the hollowed-out groove design ensures that the clamping hole matches the diameter of the conductor 2, avoiding excessive contact resistance. The clearance groove 121 of the second clamping body 12 achieves dynamic adjustment through the contact of the collision rod 14, reducing the risk of slippage. An electric tightening mechanism, combined with a threaded connection to the lifting ring 173, enables remote disassembly. Simultaneously, the optimized structure of the rotating joint 16 ensures free rotation of the first clamping body 11 and the support rod 15, further enhancing operational flexibility. This design not only improves work efficiency but also reduces maintenance costs through multiple connection methods, making it suitable for high-altitude work scenarios and significantly improving the adaptability and practicality of the grounding clamp 1.

[0093] This invention has advantages in structural flexibility, ease of operation and safety. It can effectively meet the adaptation requirements of different conductors 2. At the same time, through the linkage and remote operation function of the collision rod 14, it realizes the efficient use of the grounding clamp 1, reduces manual intervention, reduces operation time and maintenance costs, and is suitable for the grounding tooling needs of power operation and high-altitude scenarios.

[0094] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A grounding clamp, characterized in that, include: First clamp (11); The second clamp (12) is rotatably connected to the first clamp (11); An elastic structure (13) is provided, which connects the second clamp (12) and the first clamp (11). The elastic force of the elastic structure (13) drives the second clamp (12) and the first clamp (11) to remain in a clamped state. The first clamp (11) or the second clamp (12) is electrically connected to the ground wire (20). The second clamp (12) is provided with a clearance groove (121). The collision rod (14) has one end rotatably connected to the first clamp (11) and the other end of the collision rod (14) can abut against the second clamp (12) so that the first clamp (11) and the second clamp (12) remain open. The other end of the collision rod (14) can also be inserted into the avoidance groove (121). Among them, the first clamp (11) and the second clamp (12) have a hollowed-out groove at their head end. When the first clamp (11) and the second clamp (12) are clamped together, the head end of the other clamp enters the hollowed-out groove.

2. The grounding clamp according to claim 1, characterized in that, The grounding clamp (1) also includes a support rod (15). The first clamp body (11) is connected to the first end of the support rod (15). A rotating joint (16) is provided between the first clamp body (11) and the support rod (15). The rotating joint (16) includes a rotating shaft (161) and two end face gears (162). One end face gear (162) is connected to the first clamp body (11), and the other end face gear (162) is connected to the support rod (15). The two end face gears (162) rotate relative to each other. Several radial teeth (1621) are provided on the meshing surfaces of the two end face gears (162).

3. The grounding clamp according to claim 2, characterized in that, The rotating shaft (161) is a lifting eye bolt, and a nut is fixed on the first clamp (11). The lifting eye bolt passes through the two end face gears (162) and is threadedly connected to the nut. When the eye bolt and the nut are loosened, the two end face toothed discs (162) disengage and rotate freely; when the eye bolt and the nut are tightened, the radial teeth (1621) of the two end face toothed discs (162) engage and are fixed.

4. The grounding clamp according to claim 2, characterized in that, The grounding clamp (1) also includes an electric tightening mechanism. One end of the electric tightening mechanism is connected to the first clamp body (11), and the other end is connected to the tail end of the second clamp body (12) through a tightening rope (19). The electric tightening mechanism is used to pull the tail end of the second clamp body (12) so that the second clamp body (12) opens relative to the first clamp body (11).

5. The grounding clamp according to claim 4, characterized in that, The electric tightening mechanism is an electric push rod (17). The fixed end (172) of the electric push rod (17) is connected to the first clamp (11). One end of the tightening rope (19) is connected to the tail end of the second clamp (12). The other end of the tightening rope (19) is connected to the telescopic end (171) of the electric push rod (17).

6. The grounding clamp according to claim 5, characterized in that, The telescopic end (171) of the electric push rod (17) is provided with a lifting ring (173), which is used to connect the tightening rope (19).

7. The grounding clamp according to claim 6, characterized in that, The lifting ring (173) is threadedly connected to the telescopic end (171) of the electric push rod (17).

8. The grounding clamp according to claim 5, characterized in that, The fixed end (172) of the electric push rod (17) is detachably connected to the support rod (15).

9. The grounding clamp according to claim 4, characterized in that, The electric tightening mechanism is an electric reel (18), which is fixed on the first clamp (11). The electric reel (18) includes a motor (181), a reducer (182), and a reel (183). The tightening rope (19) is wound around the reel (183).

10. The grounding clamp according to claim 9, characterized in that, The speed reducer (182) is a planetary speed reducer (182).

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