CN204131005U - Double loop tangent tower steeple head cross-arm jig - Google Patents

Abstract

The utility model relates to a device for replacing insulator strings of double and multi-circuit linear towers on the same tower during the live maintenance work of transmission lines, more specifically, it relates to a double-circuit linear tower spire head cross-arm fixture. The jig body is composed of left and right sub-card bodies. Each sub-card body is equipped with an adjustable hook and a load-bearing screw respectively. The two sub-card bodies are connected symmetrically. Through the first adjustable The fixing bolts of the device are connected together; the load-bearing screw rods are located at both ends of the fixture body, and the adjustable pole-holding hook is located between the two load-bearing screw rods. The utility model solves the problem of the limitation of the wire diameter and the lifting load in the operation of replacing 110kV double and multi-circuit straight tower head insulator strings in the live maintenance work of the transmission line.

Description

Double-loop linear spire cross-arm fixture

technical field

The utility model relates to a device for replacing insulator strings of double and multi-circuit linear towers on the same tower during the live maintenance work of a transmission line, more specifically, it relates to a double-circuit linear tower spire cross-arm fixture.

Background technique

At present, in the live maintenance work of transmission lines, on the 110kV transmission line, when the tower shape is a steel pipe tower, a multi-circuit straight line, a spire, a square cross-arm structure, due to the special tower head, there is no corresponding special fixture for live work, which limits the replacement of 110kV The development of live work on double and multi-circuit straight tower insulator strings.

Contents of the invention

The utility model just aims at the above-mentioned problems, and provides a double-circuit linear spire head cross-arm fixture. In order to achieve the above purpose, the utility model adopts the following technical scheme. The fixture body is composed of two sub-card bodies, left and right. The sub-clamp bodies are connected symmetrically, and are connected together by fixing bolts of the first adjustable device; the load-bearing screw rods are located at both ends of the fixture body, and the adjustable pole hook is located between the two load-bearing screw rods. The adjustable pole hook is fixed on the fixture body through the fixing bolt of the second adjustable device, and the heads of the two hooks are opposite. The load-bearing screw rod is fixed on the fixture body by the load-bearing screw rod fixing bolt .

The beneficial effects of the utility model:

The utility model solves the problem of restricting the development of the work due to the diameter of the wire and the lifting load in the replacement of the 110kV double and multi-circuit straight tower head insulator strings in the live maintenance work of the transmission line; it solves the problem that the tower shape of the line is The square cross-arms at the head of the straight steel pipe tower have different widths and are difficult to install and fix. It solves the problem that tools and appliances are easy to slip outside after bearing the force, which will easily cause the wire to shift after being hoisted and the safety distance to the tower body is insufficient. The problem of serious accidents; solve the problem that in the case of single lifting point lifting, in order to avoid serious accidents where the live wires fall to the ground, it is necessary to take back measures to prevent the wires from slipping. Lifting and falling wires can be freely retracted through the screw rod, without the cooperation of ground personnel, which saves time and effort, simplifies the work, improves the safety of the operation, and reduces the labor intensity of the personnel.

Description of drawings:

Fig. 1 is the structural representation of the utility model. In Figure 1, 1 is the fixture body, 2 is the fixing bolt of the first adjustable device, 3 is the adjustable pole hook, 4 is the fixing bolt of the second adjustable device, 5 is the bearing screw rod, and 6 is the bearing wire Rod fixing bolts. FIG. 2 is a top view of FIG. 1 . In Fig. 2, 1 is the fixture body, 2 is the fixing bolt of the first adjustable device, 3 is the adjustable pole hook, and 4 is the fixing bolt of the second adjustable device .

Detailed ways:

As can be seen from Figure 1-2, the fixture body of the present utility model is composed of left and right sub-card bodies, and each sub-card body is respectively provided with an adjustable pole-holding hook and a load-bearing screw rod, and two sub-cards The body adopts a symmetrical connection, and is connected together by fixing bolts of the first adjustable device; the load-bearing screw rods are located at both ends of the fixture body, and the adjustable pole-holding hook is located between the two load-bearing screw rods. The adjustable pole hook is fixed on the fixture body through the fixing bolt of the second adjustable device, and the heads of the two hooks are opposite. The load-bearing screw rod is fixed on the fixture body by the load-bearing screw rod fixing bolt. When in use, by adjusting the width of the adjustable tower body fixing device of the fixture body, the fixture is fixed on the cross arm of the steeple head, the load-bearing screw rods at both ends of the fixture are assembled and connected, and then connected with the connector, pull plate, lifting Connector, etc. Tighten and loosen the screw rod at the tower head side to complete the work of replacing the insulator string. The above-mentioned embodiments are only descriptions of preferred implementations of the present utility model, and are not intended to limit the concept and scope of the present utility model. On the premise of not departing from the design concept of the present utility model, various modifications and improvements made by ordinary persons in the art to the technical solution of the present utility model shall fall within the protection scope of the present utility model.

Claims (3)

1. double loop tangent tower steeple head cross-arm jig, it is characterized in that, jig body is made up of left and right two points of cards, each point of card is arranged respectively an adjustable pole hook and a load screw mandrel, two points of cards adopt symmetrical expression to connect, and are linked together by the first adjustable apparatus set bolt; Load screw mandrel is positioned at the two ends of jig body, and adjustable pole hook is between two load screw mandrels.

2. double loop according to claim 1 tangent tower steeple head cross-arm jig, it is characterized in that, adjustable pole hook is fixed in jig body by the second adjustable apparatus set bolt, and two heads hooked are relative.

3. double loop according to claim 1 tangent tower steeple head cross-arm jig, it is characterized in that, load screw mandrel is fixed in jig body by load screw mandrel set bolt.