CN205004715U - Lightning -arrest wave drag ware downlead support - Google Patents

Abstract

The utility model discloses a down-conductor support for a lightning arrester, which comprises an iron tower angle steel and an insulating support rod. A splint fixing mechanism is arranged on the iron tower angle steel. Fixing bolts are arranged, and fixing hardware is arranged at the other end of the insulating support rod, and the fixing bolts are connected with the threaded holes. The utility model avoids opening holes on the iron tower, does not damage the original iron tower angle steel, does not affect the structure of the iron tower itself, can flexibly adjust the installation position of the bracket, improves the convenience of bracket installation, reduces the installation cost of the bracket, and is suitable for various Tower angle steels in different directions have a simple structure and are suitable for promotion.

Description

A lightning arrester downconductor support

technical field

The utility model relates to the technical field of tower line construction, in particular to a downconductor support for a lightning arrester wave resistor.

Background technique

The traditional Franklin lightning rod is widely used in high-rise buildings because of its good anti-direct lightning effect and low construction cost because of its simple structure. The lightning current will eventually leak the lightning current into the earth through the grounding down conductor. However, for electric high-voltage transmission lines, the traditional Franklin lightning rod can only be used to prevent shielding near the tower, and cannot prevent the counterattack formed by lightning strikes on the tower.

The lightning arrester is a new type of lightning protection equipment for high-voltage transmission lines. It is installed on the top of the tower of the high-voltage transmission line. It forms an upward leader through the tip discharge effect and leads to the lightning current. The transmission characteristics can effectively reduce the frontal steepness and amplitude of the lightning wave, and realize the dual effects of shielding protection and counterattack protection for the lightning strike dangerous area near the tower. At the same time, because the lightning arrester is insulated from the top of the tower, this special structure will redistribute the lightning overvoltage on the top of the transmission line tower, further reduce the lightning overvoltage value of the insulator, and effectively reduce the lightning tripping rate of the transmission line.

Different from the conventional lightning rod on the top of the tower, the lightning arrester does not directly discharge into the earth through the steel tower on the top of the iron tower, but leads to the earth through an independent channel, and requires the grounding down-conductor to maintain a sufficient insulation distance from the iron tower to ensure Reasonable distribution of lightning potential at the top of the tower. The lightning arrester is insulated from the tower, and its lightning downconductor is also kept insulated from the tower of the transmission line.

In order to ensure the insulation between the lightning down conductor of the lightning arrester and the tower, in the lightning arrester system, a sufficient electrical insulation distance between the lightning down conductor and the iron tower is maintained through a special insulating support. One end of the insulating rod is installed on the iron tower, and the other end is used to support the lightning downconductor. The connection between the insulating rod and the pole tower is accomplished through the lightning downconductor support. Conventional down conductor brackets are made by opening holes in the iron tower angle steel and connecting them with the ends of insulating rods through bolts, which will cause certain damage to the structure of the tower and cannot flexibly change the installation position of the bracket, which increases the difficulty of bracket installation and improves the installation efficiency cost.

Utility model content

The problem to be solved by the utility model is to provide a lightning arrester downconductor bracket, which avoids opening holes on the iron tower, does not damage the original iron tower angle steel, does not affect the structure of the iron tower itself, and can flexibly adjust the installation position of the bracket, improving the Ease of bracket installation.

A down-conductor support for a lightning arrester, comprising an iron tower angle steel and an insulating support rod, a splint fixing mechanism is arranged on the iron tower angle steel, a threaded hole is arranged at one end of the splint fixing mechanism, and a fixing bolt is arranged at one end of the insulating support rod. The other end of the insulating support rod is provided with fixing hardware, and the fixing bolt is connected with the threaded hole.

Further, the splint fixing mechanism includes an inner L-shaped splint and an outer L-shaped splint matched with the iron tower angle steel, and both ends of the inner L-shaped splint and the outer L-shaped splint are connected by fastening bolts.

Further, an L-shaped bracket is arranged on the outer L-shaped splint, and a fixing ring matched with the insulating support rod is arranged on the L-shaped bracket.

Further, the wire-fixing hardware includes a wire-hanging ring, and an elastic protective layer is provided on the inner surface of the wire-hanging ring.

The utility model provides a down-conductor support for a lightning arrester, which includes an iron tower angle steel and an insulating support rod. A splint fixing mechanism is arranged on the iron tower angle steel. Fixing bolts are arranged, and fixing hardware is arranged at the other end of the insulating support rod, and the fixing bolts are connected with the threaded holes. The splint fixing mechanism clamps the iron tower angle steel as the support base of the down-conductor bracket. The splint fixing mechanism wraps and fixes the iron tower angle steel through two layers of splints, avoiding the defect that the iron tower angle steel needs to be perforated in traditional construction, and through the The adjustment of the splint fixing mechanism can set its fixing position flexibly, and the installation is flexible. The threaded hole at one end of the splint fixing mechanism is connected with the fixing bolt at one end of the insulating support rod, which plays a role of fixing and supporting the insulating support rod, and cooperates with the fixing hardware at the other end of the insulating support rod to support the down-conductor. Simple but solves the previous line construction problems.

The splint fixing mechanism includes an inner L-shaped splint and an outer L-shaped splint matched with the iron tower angle steel, and the two ends of the inner L-shaped splint and the outer L-shaped splint are connected by fastening bolts. This is one of the shapes of the splint fixing mechanism. Specifically, the inner L-shaped splint and the outer L-shaped splint can be designed for the iron tower angle steel mechanism. The edges of the two layers of splints are correspondingly provided with threaded holes, which are pressed by fastening bolts to play a role in insulating the support rods. supporting role.

An L-shaped bracket is arranged on the outer L-shaped splint, and a fixing ring matched with the insulating support rod is arranged on the L-shaped bracket. Only relying on the threaded holes and fixing bolts in the plan can fix and support the insulating support rods. In heavy wind and heavy rain, the violent shaking of the insulating support rods is very easy to cause the weak fracture of the fixing bolts and cause damage to the equipment. The L-shaped bracket is set on the outer L-shaped splint, and one end of the fixed ring is connected to the insulating support rod, and the insulating support rod is fixed by the fixed ring to increase the support strength of the down-conductor bracket.

The wire-fixing hardware includes a wire-hanging ring, and an elastic protective layer is provided on the inner surface of the wire-hanging ring. The wire hanging ring adopts a steel ring, which can be inserted into the down conductor. In order to prevent the down conductor and the wire hanging ring from being easily damaged due to large contact friction, an elastic protective layer is set for protection.

Beneficial effects of the utility model: the utility model avoids opening holes on the iron tower, does not damage the original iron tower angle steel, does not affect the structure of the iron tower itself, can flexibly adjust the installation position of the bracket, improves the convenience of bracket installation, and reduces the cost of the bracket. The installation cost is suitable for iron tower angle steels in various directions, and the structure is simple and suitable for promotion.

Description of drawings

Below in conjunction with accompanying drawing, the utility model will be further described:

Fig. 1 is a schematic structural view of the downconductor support of the lightning arrester of the present invention;

Fig. 2 is a structural schematic diagram of the utility model for fixing the wire fittings.

detailed description

As shown in Figure 1 and Figure 2: the utility model provides a lightning arrester downconductor support, including iron tower angle steel 1 and insulating support rod 2, the iron tower angle steel 1 is provided with a splint fixing mechanism 3, the splint One end of the fixing mechanism 3 is provided with a threaded hole 4 , one end of the insulating support rod 2 is provided with a fixing bolt 5 , and the other end of the insulating support rod 2 is provided with a fixing hardware 11 , and the fixing bolt 5 is connected with the threaded hole 4 . The splint fixing mechanism clamps the iron tower angle steel as the support base of the down-conductor bracket. The splint fixing mechanism wraps and fixes the iron tower angle steel through two layers of splints, avoiding the defect that the iron tower angle steel needs to be perforated in traditional construction, and through the The adjustment of the splint fixing mechanism can set its fixing position flexibly, and the installation is flexible. The threaded hole at one end of the splint fixing mechanism is connected with the fixing bolt at one end of the insulating support rod, which plays a role of fixing and supporting the insulating support rod, and cooperates with the fixing hardware at the other end of the insulating support rod to support the down-conductor. Simple but solves the previous line construction problems.

The splint fixing mechanism 3 includes an inner L-shaped splint 6 and an outer L-shaped splint 7 matched with the iron tower angle steel 1, and the two ends of the inner L-shaped splint 6 and the outer L-shaped splint 7 are fastened by fastening bolts 8 connect. This is one of the shapes of the splint fixing mechanism. Specifically, the inner L-shaped splint and the outer L-shaped splint can be designed for the iron tower angle steel mechanism. The edges of the two layers of splints are correspondingly provided with threaded holes, which are pressed by fastening bolts to play a role in insulating the support rods. supporting role.

An L-shaped bracket 9 is arranged on the outer L-shaped splint 7 , and a fixing ring 10 matched with the insulating support rod 2 is arranged on the L-shaped bracket 9 . Only relying on the threaded holes and fixing bolts in the plan can fix and support the insulating support rods. In heavy wind and heavy rain, the violent shaking of the insulating support rods is very easy to cause the weak fracture of the fixing bolts and cause damage to the equipment. The L-shaped bracket is set on the outer L-shaped splint, and one end of the fixed ring is connected to the insulating support rod, and the insulating support rod is fixed by the fixed ring to increase the support strength of the down-conductor bracket.

The wire-fixing hardware 2 includes a wire-hanging ring 11 , and an elastic protective layer 12 is provided on the inner surface of the wire-hanging ring 11 . The wire hanging ring adopts a steel ring, which can be inserted into the down conductor. In order to prevent the down conductor and the wire hanging ring from being easily damaged due to large contact friction, an elastic protective layer is set for protection.

Claims (4)

1. A lightning arrester down-conductor support, comprising an iron tower angle steel and an insulating support rod, characterized in that: a splint fixing mechanism is set on the iron tower angle steel, a threaded hole is arranged at one end of the splint fixing mechanism, and the insulating support rod One end is provided with a fixing bolt, and the other end of the insulating support rod is provided with fixing hardware, and the fixing bolt is connected with the threaded hole. 2. The lightning arrester downconductor support according to claim 1, wherein the splint fixing mechanism includes an inner L-shaped splint and an outer L-shaped splint matched with the iron tower angle steel, and the inner L-shaped splint The two ends of the splint and the outer L-shaped splint are connected by fastening bolts. 3. The lightning arrester downconductor support as claimed in claim 2, characterized in that: an L-shaped support is arranged on the outer L-shaped splint, and an L-shaped support is arranged on the L-shaped support to match the insulating support rod. M. 4. The downconductor support of the lightning arrester according to claim 1, wherein the wire fixing hardware includes a wire hanging ring, and an elastic protective layer is provided on the inner surface of the wire hanging ring.