Portable ground clamp

Abstract

The utility model relates to the technical field of electric power operation equipment discloses a portable ground wire clamp, include: center pole, be equipped with two clamping body on the center pole, be equipped with wire slot on the clamping body, one of clamping body is fixed on the center pole, and the other clamping body is connected on the center pole slidingly, the utility model discloses a sliding clamping body, reset spring and open and close part are set up on the center pole, realized the quick clamping and stable location of ground wire clamp, in work, spring a is used to provide the spring force of open and reset, makes two clamping body can be automatic clamping conductor after loosening operation, reduces manual regulation, the cooperation of the touch board and the convex platform slope part forms the mechanical transmission structure, can complete conductor clamping and release under one -hand operation, improves the security and convenience of high altitude and narrow space operation.

Description

Technical Field

[0001] This utility model relates to the field of power operation equipment technology, specifically to a portable grounding clamp. Background Technology

[0002] In power systems, when overhauling medium- and high-voltage transmission lines or related equipment such as 10kV and 35kV, it is usually necessary to first de-energize the equipment or lines to ensure the personal safety of maintenance personnel, and then carry out maintenance work after confirming that there is no power. However, to prevent electric shock accidents caused by accidental energization, induced voltage, or operational errors during maintenance, it is also necessary to further ground the de-energized lines.

[0003] Existing grounding operations typically employ grounding tools consisting of a grounding wire and grounding clamps at both ends. During use, one end of the grounding clamp holds the transmission line conductor, while the other end holds the grounding electrode or grounding busbar, thus establishing a reliable grounding loop and ensuring the de-energized line remains at a low potential.

[0004] However, in practice, traditional grounding clamps are mostly screw-type clamps, requiring workers to manually rotate the clamp screw multiple times to complete the clamping and fixing process. This operation is not only time-consuming and labor-intensive, but it is also more likely to cause inconvenience and safety hazards when working at heights or in confined spaces. Furthermore, the clamping force is not easy to maintain consistently, affecting the reliability of the contact. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a portable grounding clamp, which aims to alleviate the above problems to at least some extent.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A portable grounding clamp, comprising: A central rod, on which two clamps are provided, and the clamps are provided with wire grooves; One of the clamps is fixed to the central rod, and the other clamp is slidably connected to the central rod; A base located at the bottom of the central rod is provided with multiple ground plugs; A tensioning member is provided between the two clamps for moving one of the clamps, and the tensioning member can limit the clamp after the position of one of the clamps is adjusted.

[0007] Preferably, a spring a is connected between the two clamps.

[0008] Preferably, the opening and closing component includes two contact plates slidably connected to the central rod, a spring b connecting the contact plates to the central rod, the contact plates being located between the two clamping bodies, and a boss being connected to the top of the lower clamping body, the boss having a ramp portion on its side near the contact plate.

[0009] Preferably, the opening and closing component further includes a connection port opened on the central rod, two limiting strips are slidably connected in the connection port, the limiting strips are in contact with one of the clamps at the lower part, a spring c is connected between the two limiting strips, and the upper part of the limiting strips is in contact with the guide rod on the touch plate.

[0010] Preferably, the bottom of the touch plate has a predetermined distance from the ramp portion on the protrusion.

[0011] Preferably, the base is threadedly engaged with the center rod via a threaded section on the center rod.

[0012] In summary, the present invention has the following main advantages: This invention achieves rapid clamping and stable positioning of the grounding clamp by incorporating a sliding clamp, a return spring, and an opening / closing component on the central rod. During operation, spring a provides the elastic force for opening and returning, allowing the two clamps to automatically grip the wire after release, reducing manual adjustment. The contact plate and the ramp of the boss form a force transmission structure, enabling wire clamping and release with one hand, improving safety and convenience in high-altitude and confined space operations. The unlocking mechanism, consisting of the limiting strip, guide rod, and spring c, prioritizes releasing the clamp's limit during the initial pressing phase, followed by clamp movement via the ramp. The segmented action avoids structural interference. The base uses a threaded connection for easy assembly and disassembly, facilitating portability and rapid deployment.

[0013] In summary, the portable grounding clamp of this utility model has the advantages of simple operation, reliable clamping, compact structure and automatic reset, which can effectively shorten the grounding preparation time during power maintenance and improve work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is another schematic diagram of the overall structure of this utility model; Figure 3 This is a cross-sectional schematic diagram of the central rod structure of this utility model; Figure 4 yes Figure 3 A magnified schematic diagram of the local structure at point A.

[0015] Figure label: 100. Center rod; 101. Clamp; 102. Cable tray; 103. Base; 104. Floor plug; 105. Spring a; 200. Contact plate; 201. Spring b; 202. Boss; 203. Slope; 300, Connecting port; 301, Limiting strip; 302, Spring c. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] refer to Figures 1-4 This embodiment provides a portable grounding clamp, which includes a longitudinally arranged central rod 100, two clamping bodies 101 for holding conductors, a set of opening and closing components for adjusting the spacing of the clamping bodies 101, and a base 103 structure at the bottom for connecting to the ground.

[0018] The central rod 100 is arranged vertically and serves as the main supporting component of this device. The two clamping bodies 101 are distributed vertically along the central rod 100, each equipped with a semi-circular wire groove 102 for accommodating electrical wires. The upper clamping body 101 is fixedly connected to the top of the central rod 100 and cannot move; the lower clamping body 101 is slidably connected along the central rod 100, and its distance from the upper clamping body 101 can be adjusted by raising and lowering it on the central rod 100.

[0019] A clamping mechanism is provided between the two clamping bodies 101. When a conductor needs to be clamped, the lower clamping body 101 slides downward along the central rod 100 to facilitate clamping the conductor. Then, the lower conductor slides upward to allow the two clamping bodies 101 to hold the conductor. Furthermore, after adjusting to the appropriate position, the limiting mechanism automatically locks the clamping bodies 101 in place to prevent loosening and ensure a secure clamping. This structure makes the clamping process fast and efficient, and simple to operate, avoiding the cumbersome steps of multiple rotations required by traditional spiral wire clamps.

[0020] The bottom end of the central rod 100 is provided with an integrally connected base 103 structure. The base 103 unfolds in a triangular plane, which has strong support stability. The end of each extension arm of the base 103 is provided with a pointed conical grounding plug 104 for insertion into the ground or connection to a grounding body, so as to realize the overall grounding plug 104 structure of the device is reasonably arranged, which not only enhances stability, but also facilitates the rapid construction of grounding path.

[0021] In this embodiment, a spring a105 is connected between the two clamping bodies 101. The spring a105 is located between the upper clamping body 101 and the lower clamping body 101, on one side of the central rod 100, and is used to provide a pre-tensioning force for opening when not in operation.

[0022] Specifically, when the lower clamp 101 is not pushed by an external force, the spring a105 is in a naturally extended state, maintaining a certain distance between the lower clamp 101 and the upper clamp 101, thus facilitating the placement of the wire into the corresponding groove 102 of the two clamps 101. During the clamping operation, the operator overcomes the elastic force of the spring a105 by using the opening and closing mechanism, pushing the lower clamp 101 away from the upper clamp 101, making it easier for the groove 102 on the two clamps 101 to fit onto the wire. Then, the opening and closing mechanism is used to release the force on the lower clamp 101, and the spring a105 releases its potential energy, allowing the lower clamp 101 to return to its original position. The potential energy of the spring a105 is used to clamp the wire.

[0023] In this embodiment, the opening and closing component includes two contact plates 200 located on both sides of the central rod 100 and slidably connected to the central rod 100. The contact plates 200 are disposed between the upper clamping body 101 and the lower clamping body 101, and cooperate with the central rod 100 through guide grooves to achieve reciprocating sliding in the horizontal direction.

[0024] Each contact plate 200 is connected to the central rod 100 by a spring b201. The spring b201 provides an outward opening force, allowing the two contact plates 200 to naturally move away from the central rod 100 without external force, maintaining a ready-to-operate state. When the user needs to perform a clamping operation, they can press the two contact plates 200, causing them to move towards the central rod 100, thereby driving the cooperating lower clamp 101 to complete the movement.

[0025] Specifically, a boss 202 is connected to the top of the lower clamp 101, and a ramp 203 is provided on the side of the boss 202 near the contact plate 200. The ramp 203 forms a mating inclined surface with the inner side of the contact plate 200. When the two contact plates 200 are pressed inward at the same time, the ramp 203 slides downward under force, causing the lower clamp 101 to slide downward along the central rod 100, which can increase the distance between the two clamps 101, making it easier to pass through the wire. When the contact plate 200 is released, the contact plate 200 returns to its original position under the combined action of spring a105 and spring b201, and the lower clamp 101 returns to its initial position under the guidance of the ramp 203, realizing automatic clamping.

[0026] This structure achieves one-handed rapid control of the opening and closing of the clamp 101 through the elastic cooperation between the double-sided touch plates 200 and the central rod 100, as well as the oblique linkage between the ramp of the boss 202 and the inclined surface of the touch plate 200, which greatly improves the ease of operation and reliability of the device in high-altitude and confined spaces.

[0027] In this embodiment, the opening and closing component further includes a connection port 300 formed on the central rod 100. The connection port 300 extends along the length of the central rod 100, forming an internal sliding channel for mounting the limiting strips 301 and their reset elastic elements. Two independent limiting strips 301 are slidably connected within the connection port 300, arranged opposite to each other, with their lower ends contacting the lower clamping body 101.

[0028] A spring c302 is provided between the two limiting bars 301 to provide an elastic force for separation. When the device is not in operation, the spring c302 keeps the two limiting bars 301 outward, limiting the position of the clamp 101. The upper end of each limiting bar 301 contacts the guide rod on the contact plate 200. When the operator presses the contact plate 200, the guide rod on the contact plate 200 can press the limiting bar 301, forcing the limiting bar 301 to slide inward toward the center rod 100. At this time, the lower end of the limiting bar 301 moves away from the lower clamp 101, releasing the lower clamp 101 from its limiting position.

[0029] When the operation is released, the contact plate 200 resets, and the limiting bar 301 returns to its initial position under the elastic force of the spring c302, thereby contacting the lower clamp 101 again to limit its position and prevent the clamp 101 from shaking or slipping when not in operation.

[0030] In this embodiment, the bottom of the contact plate 200 and the ramp portion 203 on the boss 202 have a predetermined distance. This predetermined distance is used to allow time for the inward movement of the limiting strip 301 in the initial stage of operation, so that the release of the limiting and the movement of the clamp 101 are carried out sequentially, avoiding movement collision between the mechanisms.

[0031] Specifically, when the operator presses the touch plate 200, the touch plate 200 first drives the limiting strip 301 to slide inward toward the center rod 100 via the guide rod on it, thereby disengaging the lower end of the limiting strip 301 from the lower clamp 101 and unlocking the clamp 101. At this time, the bottom of the touch plate 200 has not yet come into contact with the ramp 203 on the boss 202.

[0032] As the contact plate 200 continues to move, after the limiting bar 301 is completely released from its limit, the bottom of the contact plate 200 contacts the ramp 203 of the boss 202. The ramp 203 slides upward under force and drives the lower clamping body 101 to move upward along the central rod 100, thereby realizing the clamping action.

[0033] By presetting this spacing, the unlocking and clamping actions can be completed in stages, ensuring a smooth and continuous process. This avoids structural interference and improves the mechanical reliability of the device during repeated operations.

[0034] In this embodiment, the base 103 is threadedly connected to the center rod 100 via a threaded section on the center rod 100. This threaded connection allows the base 103 to be quickly disassembled or installed as needed, facilitating flexible arrangement of the device in different operating environments.

[0035] When in use, the operator can directly tighten the base 103 to form a stable connection with the center rod 100, thereby achieving reliable support and grounding on the working surface; when transporting or storing, the base 103 can be detached from the center rod 100 by rotating it to reduce the overall volume and facilitate carrying and storage.

[0036] The detachable design of the threaded section not only improves the portability and maintenance convenience of the device, but also avoids the replacement difficulties caused by traditional welding or fixed connection methods, enabling the grounding clamp to complete the installation and removal operations more efficiently during on-site maintenance.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable grounding clamp, characterized in that, include: A central rod (100) is provided with two clamps (101), and the clamps (101) are provided with wire grooves (102). One of the clamps (101) is fixed to the central rod (100), and the other clamp (101) is slidably connected to the central rod (100); A base (103) is provided at the bottom of the central rod (100), and a plurality of ground plugs (104) are provided thereon. A tensioning member is provided between the two clamps (101) for moving one of the clamps (101), and the tensioning member is able to limit the clamp (101) after adjusting the position of one of the clamps (101).

2. A portable grounding clamp according to claim 1, characterized in that, A spring a (105) is connected between the two clamps (101).

3. A portable grounding clamp according to claim 1, characterized in that, The opening and closing component includes two contact plates (200) slidably connected to the central rod (100). A spring b (201) is connected between the contact plates (200) and the central rod (100). The contact plates (200) are located between the two clamping bodies (101). A boss (202) is connected to the top of the lower clamping body (101). The boss (202) has a ramp (203) on the side near the contact plate (200).

4. A portable grounding clamp according to claim 3, characterized in that, The opening and closing component also includes a connection port (300) opened on the central rod (100), and two limiting strips (301) are slidably connected in the connection port (300). The limiting strips (301) are in contact with one of the clamps (101) at the lower part. A spring c (302) is connected between the two limiting strips (301). The upper part of the limiting strips (301) is in contact with the guide rod on the touch plate (200).

5. A portable grounding clamp according to claim 3, characterized in that, The bottom of the touch plate (200) has a predetermined distance from the ramp portion (203) on the boss (202).

6. A portable grounding clamp according to claim 3, characterized in that, The base (103) is threadedly engaged with the center rod (100) via a threaded section on the center rod (100).

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