CN107882848A - Overhead transmission line metal bolt locking pin - Google Patents

Abstract

The present invention provides an anti-loosening bolt for overhead power transmission line fittings, which includes an unclosed annular body. The middle of the body is curved. The invention has a simple structure, and the nuts on the bolts are prevented from coming off through the ring-shaped anti-loosening pins, and the installation and dismantling operations can be completed without additional tools, thereby reducing the workload of operators.

Description

Overhead transmission line fittings and bolts to prevent out of stock

technical field

The invention relates to an out-of-out prevention bolt for an overhead power transmission line hardware bolt.

Background technique

The tower of the overhead transmission line has been operated outdoors for a long time. Under the influence of bad weather for a long time, some screw caps 101 will come loose from the bolts 100, which will affect the safe operation of the tower. An R-shaped pin 102 is added to the pin hole 103 at the tail, as shown in Figure 1. After installation, it is still necessary to manually "open" the two bifurcations at the tail of the R-shaped pin with a vise, that is, to the two sides Unscrew it, the purpose of this treatment is to prevent the R-shaped pin from loosening. When it is necessary to untie the metal screw cap, it is necessary to use a vise to destroy the R-shaped pin. The R-shaped pin needs to be handled manually with vices when it is installed and removed, which is very troublesome.

Contents of the invention

The present invention improves the above-mentioned problems, that is, the technical problem to be solved by the present invention is that the bolts on the existing electric line iron towers use R-shaped pins to prevent detachment, which requires additional tools to operate, which is complicated and troublesome.

The specific embodiment of the present invention is: an overhead power transmission line fittings bolt out-of-pin prevention, including an unclosed annular body, the two ends of the annular body extend upward and downward in a spiral shape, and one end extends to the outer end of the annular body , and the other end bends toward the middle of the ring.

Further, the annular body includes an inner layer of an iron core and a dustproof rubber sleeve wrapped around the iron core.

Compared with the prior art, the present invention has the following beneficial effects: the structure of the present invention is simple, and the nuts on the bolts are prevented from falling off through the ring-shaped anti-dropping pins, and the installation and removal operations can be completed without additional tools, reducing the number of operators. amount of labor.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic diagram of the structure of the present invention.

Fig. 3 is a schematic side view of the structure of the present invention.

Fig. 4 is a schematic diagram of the structure of the use state of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 2 to 4, a bolt-out prevention pin for overhead transmission line fittings includes an unclosed annular body 10. The two ends of the annular body extend spirally to the upper and lower parts respectively, and one end of the annular body is directed toward the outer end of the annular body. Extend, and bend the other end toward the middle of the ring. In order to have better moisture-proof and anti-corrosion capabilities, the annular body includes an inner layer of the iron core and a dust-proof rubber sleeve wrapped around the iron core to avoid corrosion of the annular body and the pin hole 110 at the tail of the bolt 100 .

In use, the outer end 201 extending toward the outer end facilitates inserting the bolt 100 more conveniently, while the inner end 202 bent toward the middle of the annular body makes it easier to disengage the bolt 100 .

Unless otherwise stated, the terms used in any of the technical solutions disclosed in the present invention to indicate positional relationships or shapes include states or shapes that are similar, similar or close to them.

Any component provided by the present invention can be assembled from multiple individual components, or can be a single component manufactured by integral forming process.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the present invention can still be Modifications to the specific implementation of the invention or equivalent replacement of some technical features; without departing from the spirit of the technical solution of the present invention, should be included in the scope of the technical solution claimed in the present invention.

Claims (2)

1. A kind of 1. overhead transmission line metal bolt locking pin, it is characterised in that including unclosed annular solid, the annular solid Both ends extend respectively to top and lower part helical shape, wherein one end is extended to the outboard end of annular solid, and the other end is to annular solid Middle bent.
2. A kind of 2. overhead transmission line metal bolt locking pin according to claim 1, it is characterised in that the annular solid Including iron core internal layer and it is wrapped in the dust protection rubber set of iron core.