CN203326127U - Spacing-adjustable ground wire clamp - Google Patents

Abstract

A grounding wire clip with adjustable spacing relates to a grounding wire clip and mainly solves the problem of inconvenient grounding of busbars with different thicknesses in power maintenance operations. It includes the upper contact of the wire clamp, the movable contact, the lower contact of the wire clamp and the crimping plate of the grounding wire. In the chute on the wire crimping plate, there is a movable contact between the upper contact of the wire clamp and the lower contact of the wire clamp, and a spring is arranged between the movable contact and the lower contact of the wire clamp, and the grounding wire is crimped The lower part of the plate is provided with a bolt connected to the ground wire. Through the clamping space surrounded by the contacts on the clamp and the movable contacts and the compression effect of the spring, the problem of inconvenient grounding of busbars with different thicknesses in power maintenance operations is effectively solved.

Description

A ground wire clip with adjustable spacing

technical field

The utility model relates to a wire clamp, in particular to a grounding wire clamp used in electric power maintenance operations.

Background technique

When overhauling electrical equipment, it is necessary to install reliable grounding wires at all possible incoming electricity terminals to prevent the staff from being in danger when a sudden incoming electricity comes in. The clamp of the grounding wire is a kind of power fitting that connects the grounding point of the power equipment with the grounding wire. In actual use, since the thickness of the bus bar that needs to be grounded is not constant, the distance between the two contacts of the grounding clamp can be set to one layer, two layers, or three layers to adapt to different bus bars. The fixed-distance grounding clips used usually cannot adapt to different busbar thicknesses, which requires frequent replacement of the clips, which is very inconvenient to use.

The grounding wire clamp disclosed in Chinese patent 201210066253 provides a grounding wire clamp with upper and lower pressure plates, and adjusts the distance between the upper and lower pressure plates and the upper and lower pressure lines through the threads on the upper and lower pressure plates. The crimping groove on the board clamps busbars and cables of different thicknesses; the grounding wire clamp disclosed in Chinese patent 201210537966.7 provides a crimping clamp that can clamp conductors of different shapes. The grounding wire clamp with a universal joint disclosed in Chinese patent 201210180871 provides a rotatable grounding wire clamp. The above-mentioned inventions have a complex structure, and fail to provide a grounding wire clip with a simple structure and easy operation.

Utility model content

The purpose of this utility model is to provide a grounding wire clamp with adjustable spacing, which is used to solve the problem of different thickness female wires in power maintenance operations through the clamping space surrounded by the upper contact and the movable contact of the wire clamp and the compression effect of the spring. The problem of inconvenient grounding.

The technical scheme adopted by the utility model to solve the technical problem is: a grounding wire clip with adjustable spacing, including the upper contact of the wire clip, the movable contact, the lower contact of the wire clip and the grounding wire crimping plate.

The grounding wire crimping plate is a strip metal plate, and the side of the grounding wire crimping plate is provided with a chute for installing the upper contact of the wire clip and the lower contact of the wire clip; the upper contact of the wire clip and the lower contact of the wire clip The contacts are all metal plates, and screw rods are fixed on their sides. The screw rods are inserted into the chute of the ground wire crimping plate, and the clamps are fixed on the contacts through the wing nuts arranged on the other side of the ground wire crimping plate. and the lower contact of the clamp are fixed on the ground wire crimping plate.

There is a cylindrical hole on the lower contact of the wire clip; the movable contact includes an auxiliary contact, a slide bar and a stopper, and the auxiliary contact is a metal plate arranged parallel to the upper contact of the wire clip, and is located at the center of the auxiliary contact. A cylindrical sliding rod is fixed, and the lower end of the sliding rod is fixed with a circular stopper through threads; the sliding rod is set in the cylindrical hole on the lower contact of the wire clamp, and a set is provided between the auxiliary contact and the lower contact of the wire clamp There are springs.

A stepped hole is arranged on the lower part of the ground wire crimping plate, and a ground bolt is arranged in the stepped hole.

The beneficial effect of the utility model is: through the clamping space surrounded by the upper contact of the clamp and the movable contact and the compression effect of the spring, the problem of inconvenient grounding of busbars with different thicknesses in power maintenance operations is effectively solved.

Description of drawings

Fig. 1 is the perspective view of the utility model;

Fig. 2 is the front view of the utility model;

Fig. 3 is the left view of the utility model;

In the figure: 1. Clamp upper contact, 21. Auxiliary contact, 22. Slide bar, 23. Baffle plate, 3. Spring, 4. Wire clamp lower contact, 5. Grounding bolt, 6. Grounding wire crimping plate, 61. Chute, 7. Butterfly shape nut.

Detailed ways

As shown in FIGS. 1 to 3 , the utility model includes an upper contact 1 of the clamp, a movable contact, a spring 3 , a lower contact 4 of the clamp, a grounding bolt 5 and a grounding wire crimping plate 6 .

The ground wire crimping plate 6 is an elongated metal plate, and on the side of the grounding wire crimping plate 6 is provided a elongated chute 61 for installing the upper contact 1 of the wire clip and the lower contact 4 of the wire clip. The upper contact 1 of the wire clip and the lower contact 4 of the wire clip are rectangular metal plates with a screw fixed on the side. The wing nut 7 on one side fixedly connects the ground wire crimping plate 6 with the upper contact 1 of the wire clamp and the lower contact 4 of the wire clamp; at the maintenance site, the wing nut 7 can be tightened or loosened by hand, and The wing nut 7 has a larger crimping surface with the side of the ground wire crimping plate 6 .

The center position of the lower contact 4 of the wire clamp is provided with a cylindrical hole, and a movable contact is arranged between the upper contact 1 of the wire clamp and the lower contact 4 of the wire clamp. The movable contact includes an auxiliary contact 21, a slide bar 22 and a stopper. plate 23, the auxiliary contact 21 is a rectangular metal plate, a cylindrical slide bar 22 is fixed in the middle of the auxiliary contact 21, an external thread is provided on the lower part of the slide bar 22, and a circular baffle 23 is fixed by the thread, The plate 23 can prevent the movable contact from falling off from the lower contact 4 of the clamp. A spring sleeved on the slide bar 22 is arranged between the lower contact 4 of the clamp and the auxiliary contact 21 .

A stepped hole is provided on the lower side of the ground wire crimping plate 6 , and a grounding bolt 5 is arranged in the stepped hole, and is fixed on the ground wire crimping plate 6 by a nut.

When in use, first fix the ground wire on the ground bolt 5, and adjust the position of the upper contact 1 of the wire clip or the lower contact 4 of the wire clip according to the thickness of the busbar, so that the upper contact 1 of the wire clip and the auxiliary contact 21 The distance between them is slightly smaller than the thickness of the busbar, then compress the spring 3, move the upper contact 1 and the auxiliary contact 21 of the clamp to the two sides of the busbar, release the spring 3, and the upper contact 1 and the auxiliary contact 21 of the clamp will be Snap the busbar firmly.

Claims (3)

1. the earthing wire clip that spacing is adjustable, comprise contact and earth connection crimping plate under wire clamp upper contact head, movable contact, wire clamp, it is characterized in that,

Under described wire clamp upper contact head and wire clamp, contact is the reguline metal part, side is fixed with screw rod, screw rod is inserted in the vertical chute on earth connection crimping plate, and by securing member, contact under wire clamp upper contact head and wire clamp is fixed on earth connection crimping plate, and described earth connection crimping plate is the strip metal plate;

Be provided with cylindrical hole on contact under wire clamp, movable contact is located under wire clamp upper contact head and wire clamp between contact, described movable contact comprises auxiliary contact, slide bar and the block be fixedly connected sequentially from top to bottom, described auxiliary contact is the reguline metal plate, with the wire clamp upper contact head, be arranged in parallel, slide bar is cylindrical bar and slides under wire clamp in the cylindrical hole on contact, be provided with the spring be enclosed within on slide bar between contact under auxiliary contact and wire clamp;

Bottom at earth connection crimping plate is fixed with earth stud.

2. the adjustable earthing wire clip of a kind of spacing according to claim 1, is characterized in that, described securing member is wing nut.

3. the adjustable earthing wire clip of a kind of spacing according to claim 2, is characterized in that, described earth connection crimping plate bottom is provided with counter sink, is provided with earth stud in counter sink, and is fixed on earth connection crimping plate by nut.

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