CN202405721U - Strain clamp - Google Patents

Abstract

A strain clamp includes a pipe body, the rear end of the pipe body is provided with a steel anchor, and the pipe body is also provided with a drainage plate, and the drainage plate is provided with a wire slot, and the opening of the wire slot is downward. The diversion plate of the utility model is in contact with both sides of the wire, the contact area is large, the contact resistance is small, the conductivity is strong, and the loss in the process of electric energy transmission is small; the mechanical strength of the diversion plate is increased, and the diversion plate is not easy to be subjected to excessive force during use. And fracture prolongs the service life of the drainage plate; improves the connection strength between the drainage plate and the wire, reduces the material and size requirements for the connecting bolts, improves the reliability of the installation, and reduces the installation cost.

Description

A strain-resistant clamp

technical field

The utility model relates to a wire clamp, in particular to a tension wire clamp used for a tension iron tower. the

Background technique

The tension clamp is used to fix the twisted wire on the tension insulator string of the tension pole tower, and acts as an anchor. It is an important fitting for large cross-section wires in high-voltage transmission lines. The electrical conductor must have good electrical performance on the basis of ensuring sufficient mechanical strength of the tension clamp. the

Commonly used strain clamps are composed of pipe body, drain plate, drain clamp and steel anchor, etc. The most common hydraulic strain clamp connects the steel core part of the wire to the steel anchor by crimping, and the aluminum wire is connected to the steel anchor. On the aluminum tube, the aluminum tube is fixedly connected to the steel anchor, and the transition wire is electrically connected to the aluminum tube through the diversion plate. the

This traditional strain clamp is shown in Figure 1. The drain plate and the wire are generally connected on one side, that is, one end of the drain plate is made into a flat plate, and the end of the wire is also pressed into a flat plate. Fixed with wires, this kind of connection often causes poor contact between the drain plate and the wires or overheating due to too small contact surface, which is poor in safety and reliability. the

Utility model content

In order to solve the problems of the prior art, the utility model provides a strain clamp with high safety and reliability and less power loss. the

The technical scheme of the utility model is: a strain clamp, including a pipe body, the rear end of the pipe body is provided with a steel anchor, and the pipe body is also provided with a drainage plate, and the drainage plate is provided with a wire groove. The trunking opens downward. the

The end of the wire is formed into a flat plate after being pressed, and inserted into the wire slot, so that the two surfaces of the wire end are in full contact with the two inner surfaces of the wire slot, which greatly increases the contact area and effectively reduces the contact resistance. The loss is reduced during the transmission process; at the same time, the installation method of the utility model can greatly reduce the shear force of the wire and the drainage plate on the connector, improve the strength of the connection, reduce the requirements for the material and size of the connector, and reduce the installation time. cost. the

Preferably, a drainage clip is arranged in the wire groove, and the drainage clip is fixedly connected with the drainage plate. the

Preferably, the drain plate and the drain clamp are provided with bolt holes, and the drain plate and the drain clamp are fixed to each other by bolts. the

Preferably, the drain clamp includes a connection part and a fixing plate fixedly connected to each other, and an angle between a central axis of the connection part and a central axis of the fixing plate is 10-30 degrees. the

Preferably, the drainage plate is connected to the pipe body through a hoop, and the drainage plate is electrically connected with the pipe body. the

Preferably, the inner surface of the hoop is provided with an anti-slip groove. the

In summary, the utility model has the following advantages:

1. The diversion plate is in contact with both sides of the wire, the contact area is large, the contact resistance is small, the conductivity is strong, and the loss during power transmission is small;

2. The mechanical strength of the drainage plate is increased, and the drainage plate is not easy to break due to excessive force during use, which prolongs the service life of the drainage plate;

3. The connection strength between the drain plate and the wire is improved, the material and size requirements for the connecting bolts are reduced, the reliability of the installation is improved, and the installation cost is reduced.

Description of drawings

Figure 1 is a schematic diagram of the connection between the traditional drain plate and the wire;

Fig. 2 is a structural schematic diagram of the utility model.

In the figure, 1, pipe body, 2, drain plate, 21, hoop, 22, wire groove, 23, anti-skid groove, 3, drain wire clip, 31, fixing plate, 32, wiring part, 4, bolt, 5, steel anchor. the

Detailed ways

Below with embodiment the utility model is described further. the

Embodiment one:

A strain clamp, as shown in Figure 2, includes a pipe body 1, the rear end of the pipe body 1 is provided with a steel anchor 5, the pipe body 1 is also provided with a drainage plate 2, and the drainage plate 2 is connected to the pipe body through a hoop 21 On the body 1, the inner surface of the hoop 21 is provided with an anti-slip groove 23, and the drain plate 2 is electrically connected with the pipe body 1. The drain plate 2 is provided with a wire slot 22 with an opening downward, and a drain wire clamp 3 is arranged in the wire slot , Both the drain plate 2 and the drain clamp 3 are provided with bolt holes, and the drain plate 2 and the drain clamp 3 are fixed to each other by bolts.

The drain clamp 3 includes a connection portion 32 and a fixing plate 31 which are fixedly connected to each other, and the angle between the central axis of the connection portion 32 and the central axis of the fixing plate 31 is 10 degrees. the

During installation, the wiring part 32 and one end of the pipe body 1 are respectively connected to the wires, the hoop 21 on the drain plate 2 is placed on the pipe body 1, the steel anchor 5 is sleeved on the fitting string, and the drain wire clip 3 The fixing plate 31 is inserted into the wire groove 22 of the flow guide plate 2 and fixed by bolts. the

Embodiment two:

The difference from Embodiment 1 is that the angle between the central axis of the connection portion 32 and the central axis of the fixing plate 31 is 30 degrees.

Embodiment three:

The difference from Embodiment 1 is that the angle between the central axis of the connection portion 32 and the central axis of the fixing plate 31 is 20 degrees.

Claims (6)

1. A strain clamp, comprising a pipe body, the rear end of the pipe body is provided with a steel anchor, and the pipe body is also provided with a drainage plate, characterized in that: the drainage plate is provided with a wire groove, and the wire groove The opening is downward. 2 . The strain clamp according to claim 1 , wherein a drainage clamp is arranged in the wire slot, and the drainage clamp is fixedly connected to the drainage plate. 3 . 3 . The strain clamp according to claim 2 , wherein bolt holes are provided on the drainage plate and the drainage clamp, and the drainage plate and the drainage clamp are fixed to each other by bolts. 4 . 4. The strain clamp according to claim 2, characterized in that: the drainage clamp comprises a connection part and a fixing plate fixedly connected to each other, and the center axis of the connection part and the center axis of the fixing plate The angle is 10~30 degrees. 5 . The strain clamp according to claim 1 , wherein the drain plate is connected to the pipe body through a hoop, and the drain plate is electrically connected to the pipe body. 6. The strain clamp according to claim 5, characterized in that: the inner surface of the hoop is provided with an anti-slip groove.

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