CN205081432U - Strain clamp for power transmission line - Google Patents

Abstract

The utility model discloses a strain-resistant clamp for transmission lines, which comprises a clamp body (1), a steel anchor and a drainage assembly (3), the clamp body (1) is a hollow tube, and one end of the steel anchor is arranged The hanging hole (6), the power transmission wire (4) is connected in series in the clamp body (1), the part of the steel anchor protruding from the clamp body (1) is a cylindrical structure (21), and the steel anchor The part where the anchor extends into the clamp body (1) is a circular frustum structure (22), and the clamp body (1) is provided with an accommodating cavity (5) matching the circular cone structure. The utility model discloses a strain-resistant clamp for transmission lines. The hollow part at the tail end of the clamp body and the steel anchor that penetrates into the clamp body are all of a circular platform structure. The use of the circular platform structure can effectively increase the contact area between the cable clamp body and the steel anchor. , so that the tension resistance effect of the utility model is better.

Description

Tension clamp for transmission line

technical field

The utility model relates to electric power fittings, in particular to a strain clamp for transmission lines.

Background technique

Strain clamps are widely used in large-scale transmission lines, and play a vital role in line dredging and line fixation. In the prior art, compression-type strain clamps include hollow clamp main bodies, steel anchors and drainage plates. The steel anchor is generally pressed into the main body of the wire clamp with abrasive tools. Once the pressing force is not enough or the center of the hollow tube of the main body of the wire clamp is shifted, there is a risk that the steel anchor will be pulled out of the main body of the wire clamp; especially the current demand for power transmission is increasing. The larger the anchor, the larger the diameter of the transmission wire used, and the greater the risk of the steel anchor being pulled out in complex terrain or in bad weather.

Chinese patent application number 201220430833.8 (authorized announcement number CN202712790U) discloses a tension clamp, including a tension clamp body, a steel anchor, a drainage plate assembly and a drainage clamp. There is a tapered section, this structure avoids the nozzle deformation caused by the stress concentration of the head end during the crimping process, but the improvement of this structure can only improve the stress at the end of the clamp body, and cannot fundamentally solve the steel anchor The problem of being pulled out from the clamp body.

Utility model content

In view of this, the purpose of this utility model is to provide a tension clamp for transmission lines to address the deficiencies of the prior art, which can effectively prevent the risk of the steel anchor being pulled out from the clamp body by setting a mutual matching circular frustum structure.

In order to achieve the above object, the utility model adopts the following technical solutions:

A strain-resistant clamp for power transmission lines, comprising a clamp body, a steel anchor and a drain assembly, the clamp body is a hollow tube, one end of the steel anchor is provided with a hanging hole, and a transmission wire is connected in series to the clamp body Inside, the part of the steel anchor protruding from the clamp body is a cylindrical structure, the part of the steel anchor extending into the clamp body is a circular truncated structure, and the clamp body is set to match the circular truncated structure. Accommodating cavity.

Preferably, the diameter of the cylindrical structure is the same as the small diameter of the truncated circular structure, and the hanging hole is welded to the steel anchor.

Preferably, the diameter of the cylindrical structure is the same as the larger diameter of the truncated circular structure, and the end of the smaller diameter of the truncated circular structure is provided with a fixing piece for fastening the transmission wire.

Preferably, both the clamp body and the steel anchor are provided with threaded through holes, and the clamp body and the steel anchor are fixedly connected by a bolt structure.

Preferably, the steel anchor is connected to the hanging hole through a flange.

The beneficial effects of the utility model are:

The utility model discloses a strain clamp for power transmission lines. The steel anchor extends into the clamp body to form a circular platform structure. The cable clamp body is provided with a matching accommodation cavity. The contact area between the clamp body and the steel anchor makes the tension generated by the transmission wire disperse to the surface where the two are in contact with each other. Compared with the prior art, the tension borne by the steel anchor of the utility model is relatively borne by the circular frustum structure, effectively reducing the direct pull of the steel anchor. The risk of the outlet clip body, especially in areas with harsh weather conditions, the tension resistance effect of the utility model is more prominent.

In addition, the diameter of the cylindrical structure of the steel anchor protruding from the clamp body is the same as the small diameter of the circular table structure extending into the clamp body. The utility model can install the steel anchor as a whole from the tail section of the clamp body—that is, the end that penetrates the power transmission wire. In the body of the cable entry clip, the hanging hole is further welded to the steel anchor cylindrical structure. The installation process is simple and the structure after installation is also stable.

In addition, the diameter of the steel anchor cylindrical structure is the same as the large diameter of the circular truncated structure, and the end of the large diameter of the circular truncated structure is provided with a fixing piece for fastening the transmission wire. The steel anchor and the clamp body are tightened; in addition, the clamp body and the steel anchor are provided with threaded through holes, and the clamp body and the steel anchor are fixedly connected by a bolt structure, which further increases the structural stability of the steel anchor and the clamp body.

In addition, one end of the steel anchor cylindrical structure is provided with a flange that cooperates with the hanging hole, and the flanges are fixedly connected by bolts, which can make the utility model more convenient and quick in disassembly and assembly.

To sum up, the utility model has the advantages of stable structure, strong tensile strength and the like.

Description of drawings

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

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

detailed description

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

Embodiment one

As shown in Figure 1, a strain-resistant clamp for transmission lines includes a clamp body 1, a steel anchor and a drainage assembly 3, the clamp body 1 and the steel anchor 2 are provided with threaded through holes, and the clamp body 1 and the steel anchor The bolt structure 7 is fixedly connected, the clamp body 1 is a hollow tube, the left end of the steel anchor is welded with a hanging hole, the power transmission wire penetrates into the clamp body 1, the part of the steel anchor protruding from the clamp body 1 is a cylindrical structure 21, and the steel anchor The part extending into the clamp body 1 is a circular frustum structure 22, and the clamp body 1 is provided with an accommodation cavity 5 matching the circular frustum structure; the diameter of the cylindrical structure 21 is the same as the smaller diameter of the circular frustum structure 22, and the hanging hole 6 is welded to the steel anchor connect.

The utility model is designed with a circular platform structure 22 on the steel anchor, and is connected with the clamp body 1, so that the utility model maintains a good rigidity effect under the action of an external force, and effectively avoids the risk of the steel anchor loosening.

Embodiment two

As shown in Figure 2, this implementation is the same as most of the first embodiment, and the difference is that the diameter of the cylindrical structure is the same as the larger diameter of the truncated truncated structure, and the small end of the truncated circular structure is a hollow tube, and the hanging hole 6 is connected to the steel tube. The anchor is connected by a fixed pin, and the clamp body 1 and the steel anchor are provided with threaded through holes, and the clamp body and the steel anchor are fixedly connected by a bolt structure.

In this embodiment, the diameter of the cylindrical structure is the same as the larger diameter of the circular truncated structure, and the small end of the circular truncated structure is provided with a fixing piece for fastening the transmission wire 4, and the fixing piece can be buckled and fixed with bolts; the hanging hole 6 It is connected with the steel anchor through a fixed pin. During the slight vibration of the wire under the action of wind force, the pin connection method can relieve the amplitude of the vibration, reduce the tension between the steel anchor and the clamp body 1, and improve the strength of the strain clamp. In addition, bolts 8 are fixed between the steel anchor and the clamp body 1 to further enhance the structural stability of the utility model, so that the utility model can exert a more durable tension-resistant effect in harsh environments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model without limitation, other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the utility model, as long as they do not depart from the technical solution of the utility model The spirit and scope should be included in the claims of the present utility model.

Claims (5)

1. a power transmission line strain clamp, comprise wire clip body (1), steel anchor and drainage component (3), described wire clip body (1) is hollow tube, described steel anchor one end arranges hanging hole (6), transmission pressure (4) is serially connected in described wire clip body (1), it is characterized in that: the part that described steel anchor stretches out described wire clip body (1) is column structure (21), the part that described steel anchor stretches into described wire clip body (1) is frustum cone structure (22), and described wire clip body (1) arranges the container cavity (5) matched with described frustum cone structure (22).

2. a kind of power transmission line strain clamp according to claim 1, is characterized in that: the diameter that the diameter of described column structure (21) is little with described frustum cone structure (22) is identical, and described hanging hole (6) and described steel anchor are welded to connect.

3. a kind of power transmission line strain clamp according to claim 1, it is characterized in that: the diameter that the diameter of described column structure (21) is large with described frustum cone structure (22) is identical, and one end that described frustum cone structure (22) diameter is little arranges the fixture of fastening described transmission pressure (4).

4. a kind of power transmission line strain clamp according to claim 3, is characterized in that: described wire clip body (1) and described steel anchor (2) all arrange tapped through hole, and described wire clip body (1) is fixedly connected with by bolt arrangement (7) with described steel anchor.

5. a kind of power transmission line strain clamp according to claim 1, is characterized in that: described steel anchor (2) and described hanging hole (6) pass through Flange joint.