CN201736177U - Pistol-type pin puller - Google Patents

Abstract

The utility model discloses a pistol-type pin remover, which is used to extract split pins on insulators of power transmission lines. A gun handle is welded below the rear barrel, and the hook bar of the draw hook passes through the front barrel, the wrench and is pushed against the spring located in the rear barrel. The front end of the draw hook is a hook head; With U-shaped card slot. By adopting the utility model, the labor intensity of operators can be reduced, the working efficiency can be improved and the working safety can be guaranteed.

Description

A pistol type pin lifter

technical field

The utility model relates to a hand tool, which is used for extracting R-shaped cotter pins on insulators of power transmission lines, in particular to a pistol-type pin lifter.

Background technique

At present, the spring pins of some synthetic insulators and NGK porcelain insulators used on transmission lines are R-shaped pins. During the operation, because the spring pins are highly elastic and there is no special tool for removing the R-shaped spring pins, generally use hand pliers to pull them out forcefully or use The wrench is smashed out from the large opening of the steel cap, especially when the composite insulator is replaced with electricity, the operator must climb on the cross arm of the tower to operate. The distance between the steel cap of the insulator and the cross arm is small. It is difficult to remove the spring pin, and it is easy to bruise your hands.

Under normal circumstances, the specifications of the cotter pins of insulators are different from their own conditions, requiring staff to deal with various possible situations. It is time-consuming and laborious to pull them out with pliers or smash them out with a wrench, and the staff spends a lot of time on the pole tower. A large part of the physical strength is affected, which affects the work below. Due to the lack of on-site practical experience, tool manufacturers have not been able to produce convenient and practical tools suitable for workers. If excessive force is encountered during the work process, it may cause the pliers or wrench to fall off, and even cause the insulator to fall off. If it falls off, it will cause loss of tools and materials in light cases, and cause casualties of ground staff in severe cases.

Utility model content

The technical problem to be solved by the utility model is to provide a pistol-type pin lifter that can reduce the labor intensity of operators, improve work efficiency, and ensure work safety. It adopts a lever linkage device to achieve labor-saving effect.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a pistol-type pin lifter, the structure of which is that the front barrel and the rear barrel are connected through a connecting piece, and the wrench is hinged on the connecting piece. The gun handle is welded below the rear barrel, the hook bar of the drag hook passes through the front barrel, the wrench and is pushed against the spring located in the rear barrel, the front end of the drag hook is a hook head; the front end of the front barrel is provided with U-shaped card slot.

As a further improvement, an adjusting bolt is also provided at the rear end of the above-mentioned rear gun barrel. Adjust the preload of the spring by adjusting the bolt.

The beneficial effects produced by adopting the above technical scheme are: 1. The lever principle is adopted in the structure, and the pull hook is pulled by the friction force between the wrench and the hook bar, so that the operator can easily pull out the R-shaped spring pin, and the utility model can Different lengths can be set according to the needs of the work to reduce the degree of bending of the operator, and it is no longer necessary to use a large bending action to complete the extraction of the spring pin, thereby reducing labor intensity.

2. It takes about one minute to disassemble an R-shaped spring pin in the original operation, but it only takes about 2 seconds to use the utility model, which greatly improves the work efficiency.

3. During the operation project, there is no need to worry about the fall of the spring pin and the operation tool, which ensures the safety of the workers.

Description of drawings

Fig. 1 is the schematic diagram of the utility model;

Fig. 2 is a partial sectional view of the utility model;

Among them, 1. Front barrel; 2. Connector; 3. Rear barrel; 4. Adjusting bolt; Shape card slot; 9, spring.

Detailed ways

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

Referring to accompanying drawing 1 and accompanying drawing 2, the utility model is similar in shape to a pistol, and it utilizes the principle of leverage to pull the pull hook to complete the extraction of the spring pin by turning the wrench. The front gun barrel 1 and the rear gun barrel 3 are fixedly connected by a connector 2, and the connector 2 and the front gun barrel 1, and the connector 2 and the rear gun barrel 3 are welded firmly. A wrench 7 is hinged on the connecting piece 2, and the wrench 7 is provided with a hole that can accommodate the hook rod 6-1 to pass through. A compression spring 9 is arranged inside the rear gun barrel 3, and the reset of the draw hook is completed by the elastic force of the spring 9, and the draw hook is composed of a hook rod 6-1 and a hook head 6-2. Rear gun barrel 3 rear ends are threadedly connected with adjusting bolt 4, and adjusting bolt can adjust the elastic force size of spring 9. The front end portion of the front gun barrel 1 is equipped with a U-shaped slot 8, which can block the R-shaped spring pin during work. Also have a section breach on the front gun barrel 1, can move for drag hook.

Under normal circumstances, due to the action of the spring 9, the wrench 7 is in an open state. When in use, the operator puts his hand on the wrench 7, aligns with the spring pin to be pulled out, and then pulls the wrench 7, which easily realizes the pull out. The spring pins work. Pistol pin lifters of different sizes and sizes can be designed according to various pole types and insulator models, and their lengths can also be changed and designed according to requirements to meet the requirements of various working environments.

Claims (2)

1. pistol type pin extractor, it is characterized in that: the preceding gun barrel (1) of its setting is connected through connector (2) with back gun barrel (3), spanner (7) is articulated on the connector (2), be welded with the small of the stock (5) in described back gun barrel (3) below, the shank of drag hook (6-1) passes preceding gun barrel (1), spanner (7) and withstands on the spring of being located in the back gun barrel (3) (9), and the front end of drag hook is gib head (6-2); The front end of gun barrel before described (1) offers U-shaped draw-in groove (8).

2. pistol type pin extractor according to claim 1 is characterized in that: also be provided with in the rear end of described back gun barrel (3) and regulate bolt (4).

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