Fire hydrant convenient to rotate

Abstract

The invention discloses a conveniently rotatable fire hydrant, which comprises a fire hydrant body, an adjustment hand wheel, a water outlet, a drain valve, a decompression device, and a water passage. The water passage is divided into an upper water passage and a lower water passage. A valve stem and a valve disc are installed in the water pipeline. The lower water pipeline includes a first lower water pipeline and a second lower water pipeline. The valve stem includes an upper valve stem part and a lower valve stem part. The upper part of the lower stem part is connected together by a trapezoidal clutch. The trapezoidal clutch includes a first trapezoidal clutch part and a second trapezoidal clutch part; the upper end of the lower water pipe is provided with a groove along the circumferential direction, and an annular sealing strip and Spherical steel ball. The invention has the advantages of simple structure, strong practicability, more convenient fire extinguishing process, and the purpose of buffering can be realized without adding a buffer spring and a buffer valve cover.

Description

technical field [0001] The invention relates to a fire fighting equipment, in particular to a conveniently rotatable fire hydrant. Background technique [0002] The outdoor fire hydrant is a water supply facility installed on the fire water supply pipe network outside the building. It is mainly used for fire trucks to take water from the municipal water supply pipe network or outdoor fire water supply pipe network for fire extinguishing. It can also be directly connected to a hose or a water gun to extinguish fire. Therefore, the outdoor fire hydrant system is also one of the important fire-fighting facilities for fighting fires. [0003] The water pressure of the fire hydrant is high when it is out of water. If it is not treated, it will easily cause damage to the fire hose, buckle, water gun and other parts. Therefore, the existing fire hydrant is equipped with a buffer spring and a buffer valve cover at the water outlet. This makes the production more troublesome, and al...

AI Technical Summary

Problems solved by technology

[0003] The water pressure of the fire hydrant is high when it is out of water. If it is not treated, it will easily cause damage to the fire hose, buckle, water gun and other parts. Therefore, the existing fire hydrant is equipped with a buffer spring and a buffer valve cover at the water outlet. This makes the production more troublesome, and also increases the cost of production and processing; at the same time, because the outdoor fire hydrants are distributed in conspicuous places such as roadsides and streets, they are easy to use while being easy to use, such as cars, forklifts, etc. Accidents such as damage after impact, and a large amount of water will flow out after the fire hydrant is damaged, which will not only cause a great waste of water resources, but also hinder road traffic.

Moreover, the fire hydrant in the prior art has the disadvantage that the water outlet of the fire hydrant only faces one direction and cannot be turned when in use.

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