CN203521963U - Torque spanner specially used for centrally installed type handcart circuit breaker contact conducting arm - Google Patents

Abstract

The utility model discloses a special torque wrench for the conductive arm of the contact of the center-mounted handcart circuit breaker, which includes a grip handle, a torque wrench and an extension rod. The grip handle and the torque wrench are fixedly connected. One end is connected to the torque wrench through a square blind hole that is consistent with the square bar of the torque wrench. Since the extension rod can be conveniently inserted into the inside of the contact conductive arm of the center-mounted handcart circuit breaker, the bolts are tightened. The utility model fully satisfies the torque requirement for the fixing bolt of the contact conductive arm of the center-mounted handcart circuit breaker through the improvement of the torque wrench.

Description

Special torque wrench for contact conductive arm of center-mounted handcart circuit breaker

technical field

The utility model relates to a wrench, in particular to a special torque wrench for the conductive arm of the contact of a center-mounted handcart circuit breaker.

Background technique

The center-mounted handcart circuit breaker is the main equipment of the complete set of power distribution devices for indoor 12-40.5V single busbar and single busbar segmental systems. It is widely used in power plants, factory power distribution systems, and substations of power systems. And with the development of the power industry, the usage is increasing.

The fixing bolts of the contact conductive arm of the center-mounted handcart circuit breaker are designed deep inside the conductive arm. Conventional tools are difficult to fasten. Although some self-made tools used on site can meet the basic requirements for fastening, they are not used Torque wrench, so it cannot accurately meet the torque requirements of the bolt standard. Once the contact arm of the circuit breaker becomes loose and heats up during operation, it will directly affect the safe and reliable operation of the power system.

Utility model content

The purpose of the utility model is to provide a special torque wrench for the conductive arm of the circuit breaker contact that meets the torque requirements of the fixing bolts of the contact conductive arm of the center-mounted handcart circuit breaker.

The utility model is achieved in that:

The special torque wrench for the conductive arm of the circuit breaker contact includes a grip handle, a torque wrench and an extension rod. The grip handle and the torque wrench are fixedly connected. One end of the extension rod is fixedly connected to the hexagonal rod, and the other end is consistent with the square rod of the torque wrench. The quadrilateral blind hole is connected to the torque wrench, which is easy to disassemble and carry, and can be conveniently inserted into the inner conductive arm of the center-mounted handcart circuit breaker to fasten the bolts.

The utility model fully satisfies the torque requirement for the fixing bolt of the conductive arm of the circuit breaker through the improvement of the torque wrench, and the adopted rod has firm structure, good performance and convenient processing and manufacture.

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.

Fig. 1 is the top view of the utility model;

Fig. 2 is the front view of the utility model.

Among them: 1. Hexagonal rod, 2. Extension rod, 3. Holding handle, 4. Torque wrench, 5. Square blind hole.

Detailed ways

As shown in Figure 1 and Figure 2, the special torque wrench for the conductive arm of the center-mounted handcart circuit breaker contact of the utility model includes an extension rod 2, a grip handle 3 and a torque wrench 4, and the grip handle 3 and torque wrench 4 are fixed To connect, one end of the extension rod is fixedly connected with the hexagonal rod, and the other end is connected to the torque wrench through a square blind hole 5 consistent with the square rod of the torque wrench 4 .

Extend the extension rod of the special torque wrench into the bolts that need to be tightened inside the conductive arm of the circuit breaker contact. The torque wrench 4 is adjusted according to the torque requirements of the bolts to ensure that the bolt torque requirements are met. The connected grip handles 3 interact so that the forces are balanced and evenly tightened on the bolts.

The torque wrench 4 and the extension rod 2 of the special torque wrench for the contact conductive arm of the center-mounted handcart circuit breaker are connected by a square rod and a square blind hole 5, which is convenient for disassembly and carrying.

Claims (1)

1. the special-purpose torque spanner of middle truck contact of breaker conductive arm, comprise gripping handle, torque spanner and extension bar, it is characterized in that: described gripping handle is fixedly connected with torque spanner, one end of described extension bar is fixedly connected with six square bars, the other end is connected on described torque spanner with the consistent cubic blind hole of described torque spanner four directions bar by one.

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