CN202997083U - Lightningproof ground ring - Google Patents

Abstract

The utility model discloses a lightningproof ground ring, which comprises a puncture lock block, a line clamp seat, a bolt assembly, an insulated multi-ring and an insulating sheath, wherein the puncture lock block is fixed on the line clamp seat by the bolt assembly, the insulated multi-ring is arranged at the bottom of the line clamp seat, an arc striking ball is arranged at a bottom corner of the insulated multi-ring, the middle part of the bottom margin of the insulated multi-ring is exposed to atmosphere, and the rest part of the insulated multi-ring and the arc striking ball are both sheathed with the insulating sheaths. According to the lightningproof ground ring disclosed by the utility model, the structure is simple and the design in reasonable, the arc striking ball is arranged on the ground ring, when thunder and lightning occur, a discharge is generated between the arc striking ball and an earth plate to move a follow current power frequency electric arc to the arc striking ball to be ignited, thereby protecting an insulated conductor from being damaged.

Description

A lightning protection grounding ring

technical field

The utility model belongs to the technical field of electric power fittings, in particular to a lightning protection grounding ring.

Background technique

At present, a large number of overhead insulated wires have been used in the overhead installation of wires and cables at home and abroad. However, the problem of lightning breakage of some overhead wire insulated wires is more prominent. Some developed countries have successively adopted many measures and methods to prevent lightning breakage. Among them Including overhead lightning conductors, zinc oxide arresters, clamp insulators, line overvoltage protectors, etc. to prevent lightning strikes and disconnection. The main principle of lightning protection is that when lightning flashover causes power frequency freewheeling, the metal wire clip and other drainage devices are used to guide or weaken the power frequency freewheeling until the power frequency freewheeling is extinguished, so as to avoid burning insulators and fusing insulation wire.

Contents of the invention

In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a lightning protection grounding ring, which has better lightning protection effect.

In order to achieve the above-mentioned purpose of the invention, the utility model adopts the following technical solutions:

A lightning protection grounding ring, comprising a puncture pressing block, a wire clamp seat, a bolt assembly, an insulating multi-purpose ring and an insulating sheath, the bolt assembly fixes the puncture pressing block on the wire clamp seat, and the bottom of the wire clamp seat is provided with an insulating multi-purpose The bottom corner of the insulating multi-purpose ring is provided with an arc ball, the middle part of the bottom edge of the insulating multi-purpose ring is exposed to the atmosphere, and the rest of the insulating multi-purpose ring and the arc ball are covered with insulating sheaths.

Further, grooves for clamping cables are provided on opposite surfaces of the piercing pressure block and the clamp seat, and piercing teeth are provided in the grooves.

Further, the puncture pressing block, the clamp seat and the bolt assembly are all located in the insulating sheath.

Due to the above-mentioned technical scheme, the utility model has the following advantages:

The utility model is simple in structure and reasonable in design. The arc ball is arranged on the grounding ring. When lightning occurs, the arc ball and the grounding plate are discharged, so that the continuous flow power frequency arc moves to the arc ball for burning, thereby protecting the insulation. The wires are not damaged.

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the figure: 1-insulated wire; 2-insulator; 3-bolt assembly; 4-insulation sheath;

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

As shown in Figure 1, a lightning protection grounding ring includes a puncture pressing block 5, a clamp seat 6, a bolt assembly 3, an insulating multi-purpose ring 7 and an insulating sheath 4, and the bolt assembly 3 fixes the puncture pressing block 5 on the line On the clamp seat 6, the bottom of the wire clamp seat 6 is provided with an insulating multi-purpose ring 7, and a corner of the bottom of the insulating multi-purpose ring 7 is provided with an arc ball, and the middle part of the bottom edge of the insulating multi-purpose ring is exposed in the atmosphere, and the rest of the insulating multi-purpose ring and An insulating sheath 4 is sheathed on the arcing ball.

Grooves for clamping cables are provided on opposite surfaces of the piercing pressure block 5 and the clamp seat 6, and piercing teeth are arranged in the grooves.

The puncture pressing block 5 , the clamp seat 6 and the bolt assembly 3 are all located in the insulating sheath 4 .

Claims (3)

1. A lightning protection grounding ring, including a puncture pressing block (5), a clamp seat (6), a bolt assembly (3), an insulating multipurpose ring (7) and an insulating sheath (4), characterized in that: The bolt assembly (3) fixes the puncture pressing block (5) on the clamp seat (6), the bottom of the clamp seat is provided with an insulating multi-purpose ring (7), and the corner of the bottom of the insulating multi-purpose ring (7) is provided with an arc ball. The middle part of the bottom edge of the insulating multi-purpose ring is exposed in the atmosphere, and an insulating sheath (4) is sheathed on the rest of the insulating multi-purpose ring and the arc ball. 2. The lightning protection grounding ring according to claim 1, characterized in that: grooves for clamping cables are provided on the opposite surfaces of the puncture pressing block (5) and the clamp seat (6), and Piercing teeth are arranged in the groove. 3. The lightning protection grounding ring according to claim 1, characterized in that: the puncture pressing block (5), the clamp seat (6) and the bolt assembly (3) are all located in the insulating sheath (4).

Images