CN216928967U

CN216928967U - Novel grounding end wire clamp

Info

Publication number: CN216928967U
Application number: CN202123381121.XU
Authority: CN
Inventors: 谢帅军; 秦丽; 张瑜; 王清; 李菲菲; 李珂; 郭晓颖
Original assignee: Changyuan Power Supply Co Of State Grid Henan Electric Power Co; State Grid Corp of China SGCC; Xinxiang Power Supply Co of State Grid Henan Electric Power Co Ltd
Current assignee: Changyuan Power Supply Co Of State Grid Henan Electric Power Co; State Grid Corp of China SGCC; Xinxiang Power Supply Co of State Grid Henan Electric Power Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-08
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a novel grounding end wire clamp which comprises a wire clamp, a grounding ring and an arc striking arm, wherein the arc striking arm is arranged at one corner of the lower end of the grounding ring and extends downwards in an inclined mode; the fastener is including the mounting, the lower part fastener that are used for fixed ground ring, with lower part fastener complex upper portion fastener and locking bolt, the mounting wraps the top of fixing at the ground ring, the top at the mounting is fixed to the lower part fastener, the lower part fastener passes through the mounting and is connected with the ground ring electricity, the opposite side of upper portion fastener and lower part fastener sets up four group's fastener passageways to front and back direction, left and right direction and diagonal line, the upper portion fastener passes through locking bolt and is fixed with the lower part fastener centre gripping. The grounding terminal wire clamp can adapt to installation requirements in various directions and is firmly and stably installed.

Description

Novel grounding end wire clamp

Technical Field

The utility model relates to the field of power equipment, in particular to a novel grounding end wire clamp.

Background

A ground terminal clamp is a device used for power line safety.

The lightning protection grounding terminal clamp is one of the lightning protection grounding terminal clamps and is mainly used for preventing the lightning stroke disconnection problem of the overhead insulated conductor.

The position relatively fixed of traditional lightning protection ground connection terminal clamp, the centre gripping direction of cable and the orientation of ground terminal clamp are fixed promptly, but in the lightning protection principle, the striking arm of ground ring below need with form the discharge gap between the ground plate on the insulator, take place the flashover when suffering the thunderbolt, form the short circuit, and then avoid the circuit impaired, based on this lightning protection principle, the orientation of striking arm just need aim at the ground plate as far as.

Traditional ground terminal fastener designs according to the standard form, does not have the controllability, and in the actual installation, the orientation of cable is various, and fixed form's ground terminal fastener is difficult to adapt to most ground wire circumstances.

The existing lightning protection grounding end wire clamp with the adjustable direction adopts a mode that the wire clamp and a grounding ring can rotate relatively to realize angle adjustment, but the relative rotation process is realized by threads, the state of the wire clamp is unstable, deflection is easy to occur, especially under the lightning stroke state, the grounding ring can deflect due to the explosion force caused by the lightning stroke, the wire clamp can only act for the first few times, and the deflection is likely to occur in the subsequent process.

In order to solve the problem, the structure of the grounding terminal clamp needs to be redesigned, and the problem of multi-direction is solved by a more stable structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides a novel grounding end clamp which can meet the installation requirements in various directions and is firm and stable in installation.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: a novel grounding end wire clamp comprises a wire clamp, a grounding ring and an arc striking arm, wherein the arc striking arm is arranged at one corner of the lower end of the grounding ring and extends obliquely downwards;

the fastener is including the mounting, the lower part fastener that are used for fixed ground ring, with lower part fastener complex upper portion fastener and locking bolt, the mounting wraps the top of fixing at the ground ring, the top at the mounting is fixed to the lower part fastener, the lower part fastener passes through the mounting and is connected with the ground ring electricity, the opposite side of upper portion fastener and lower part fastener sets up four group's fastener passageways to front and back direction, left and right direction and diagonal line, the upper portion fastener passes through locking bolt and is fixed with the lower part fastener centre gripping.

Basically, the inside of mounting is metal inner core, the outside is insulating casing, be provided with the perforation that is used for fixed ground ring on the metal inner core, the top of metal inner core expose and with the bottom of lower part fastener links together.

Basically, the mounting is the wafer formula structure, install together through fastening bolt between the mounting.

Basically, the thickness of lower fastener is greater than the thickness of upper fastener.

Basically, the four groups of wire clamp channels are all minor arc channels.

Basically, a plurality of spikes are densely distributed in the four groups of wire clamp channels.

Basically, the spikes in the same wire clamp channel are inclined towards the center of the wire clamp channel and are symmetrically arranged at the center of the wire clamp channel.

Basically, the arc striking arm is fixed with the ground ring in a welding mode.

Basically, the connecting holes arranged on the upper wire clamp and the lower wire clamp are in through hole structures, and the locking bolt is matched with the locking nut to lock and fix the upper wire clamp and the lower wire clamp.

Basically, the non-contact ends of the upper wire clamp and the lower wire clamp are provided with protective shells.

Compared with the prior art, the structure has substantive characteristics and progress, and particularly, the structure improves the wire clamp above the grounding ring on the basis of the traditional structure which can not change the relative angle between the wire clamp and the grounding ring, mainly forms wire clamping channels in four directions between the upper wire clamp and the lower wire clamp, the relative balance of each direction is realized, the angle which is closest to the relative position of an arc leading arm and a grounding plate on an insulator can be determined according to the actual situation, and then a cable is led in from the corresponding wire clamping channel.

Furthermore, the wire clamp channel adopts a minor arc structure, so that the wire clamp can be clamped more tightly.

Furthermore, a spine mechanism is arranged in the wire clamp channel and used for puncturing the wire into the cable to prevent the cable from moving axially.

Drawings

Fig. 1 is a schematic view of the overall structure of the novel ground terminal clamp of the present invention.

Fig. 2 is a side view of the novel ground terminal clamp of the present invention.

Fig. 3 is a schematic view of the structure of the upper clamp of the present invention.

In the figure: 1. a ground ring; 2. an arc striking arm; 3. a fixing member; 4. a lower wire clamp; 5. an upper wire clamp; 6. locking the bolt; 7. a wire clamp channel.

Detailed Description

The technical solution of the present invention is further described in detail by the following embodiments.

As shown in fig. 1-3, a novel grounding end clamp includes a clamp, a grounding ring 1 and an arc-striking arm 2, wherein the arc-striking arm 2 is disposed at an angle of a lower end of the grounding ring 1 and extends obliquely downward, and the arc-striking arm 2 is welded and fixed to the grounding ring 1.

The fastener is including being used for fixed ground ring's mounting 3, lower part fastener 4, with lower part fastener 4 complex upper portion fastener 5 and locking bolt 6, the top at ground ring 1 is fixed in the winding of mounting 3, lower part fastener 4 is fixed on the top of mounting 3, lower part fastener 4 is connected with ground ring 1 electricity through mounting 3, upper portion fastener 5 sets up four group's fastener passageways 7 of preceding back direction, left and right sides and diagonal line with lower part fastener 4's opposite side, upper portion fastener 5 passes through locking bolt 6 and fixes with lower part fastener 4 centre gripping.

The grounding ring comprises a fixing piece 3, wherein the fixing piece is internally provided with a metal inner core, the outside of the fixing piece is provided with an insulating shell, the metal inner core 3 is provided with a through hole for fixing a grounding ring 1, the top end of the metal inner core is exposed and is connected with the bottom end of a lower wire clamp, specifically, the fixing piece is of a wafer type structure, namely, the metal inner core is of a wafer type structure, the insulating shell is correspondingly provided with a wafer type structure, and the fixing pieces are installed together through fastening bolts.

The connecting holes arranged on the upper wire clamp 5 and the lower wire clamp 4 are of through hole structures, and the locking bolt 6 is matched with the locking nut to lock and fix the upper wire clamp 5 and the lower wire clamp 4.

In order to facilitate adjustment in the installation process, the thickness of the lower wire clamp 4 is larger than that of the upper wire clamp 5, the condition inside the wire clamp is easy to observe in the installation process, and adjustment is convenient.

In order to clamp more stably, the four groups of wire clamp channels are minor arc channels.

In order to realize the electrical connection with the internal conductor of the cable, a plurality of sharp spines (not shown in the figure) are densely distributed in the four groups of cable clamp channels 7 for preventing the cable from loosening, and the sharp spines in the same cable clamp channel incline to the center of the cable clamp channel and are symmetrically arranged at the center of the cable clamp channel.

In order to ensure that the installation and maintenance processes are safer, the non-contact ends of the upper wire clamp and the lower wire clamp are provided with protective shells.

The use process comprises the following steps:

firstly, the position relation and the angle relation between a cable to be connected and an insulator are determined, then the angle required to be installed is determined, a proper one of the four groups of wire clamp channels 7 is selected for installation, and the locking bolt 6 is locked to complete installation.

Finally, it should be noted that the above detailed description of the preferred embodiments of the present patent application is not limited to the above embodiments, and that various changes and modifications can be made within the knowledge of those skilled in the art without departing from the spirit of the present patent application.

Claims

1. The utility model provides a novel ground connection end clamp which characterized in that: the arc striking mechanism comprises a wire clamp, a grounding ring and an arc striking arm, wherein the arc striking arm is arranged at one corner of the lower end of the grounding ring and extends downwards in an inclined mode;

2. The novel ground end clamp of claim 1, wherein: the inside of mounting is metal inner core, the outside is insulating casing, be provided with the perforation that is used for fixed ground ring on the metal inner core, the top of metal inner core expose and with the bottom of lower part fastener links together.

3. The novel ground end clamp of claim 2, wherein: the fixing pieces are of wafer type structures and are mounted together through fastening bolts.

4. The novel ground end clamp of claim 3, wherein: the thickness of the lower wire clamp is larger than that of the upper wire clamp.

5. The novel ground end clamp of claim 4, wherein: the four groups of wire clamp channels are minor arc channels.

6. The novel ground end clamp of claim 5, wherein: and a plurality of spikes are densely distributed in the four groups of wire clamp channels.

7. The novel ground end clamp of claim 6, wherein: the sharp pricks in the same wire clamp channel incline towards the center of the wire clamp channel and are symmetrically arranged at the center of the wire clamp channel.

8. The novel ground end clamp of claim 7, wherein: and the arc striking arm is welded and fixed with the grounding ring.

9. The novel ground end clamp of claim 8, wherein: the upper wire clamp and the lower wire clamp are fixedly locked by the locking bolt matched with the locking nut.

10. The novel ground end clamp of claim 9, wherein: and the non-contact ends of the upper wire clamp and the lower wire clamp are provided with protective shells.