Corrosion- and wear-resistant fire hydrants

Abstract

The invention provides an anti-corrosion wear-resistant fire hydrant which comprises a fire hydrant body. The fire hydrant body is embedded into underground, can be switched over a state of automatically extending out of the ground and a state of automatically contracting to the underground and is used for supplying a water source for firefighters. The fire hydrant body comprises a first fire-fighting vertical pipe and a second fire-fighting vertical pipe, the first fire-fighting vertical pipe is fixedly arranged, the second fire-fighting vertical pipe is coaxially and movably arranged insidethe first fire-fighting vertical pipe in a sleeving manner and moves along the central axis of the first fire-fighting vertical pipe to achieve contraction / extension, a limit mechanism for limiting movement of the second fire-fighting vertical pipe along the central axis of the first fire-fighting vertical pipe and away from the first fire-fighting vertical pipe is further arranged between the first fire-fighting vertical pipe and the second fire-fighting vertical pipe, the first fire-fighting vertical pipe is connected with the second fire-fighting vertical pipe, a transition cavity is formedamong the wall of an inner cavity of the first fire-fighting vertical pipe, a conduction block and a first shell, and the first fire-fighting vertical pipe is connected with the second fire-fightingvertical pipe when a positioning conduction mechanism moves to the limit mechanism.

Description

technical field [0001] The invention relates to a fire fighting equipment, in particular to a fire hydrant. Background technique [0002] While fire brings convenience to human beings, it also brings great disasters to human beings. Fire hydrant is a necessary fire-fighting facility in a city, which marks the development speed of a city. Fire-fighting facilities in cities are generally located above the ground, and often Crashed or even crashed by passing vehicles, the damaged fire hydrant will discharge a large amount of water, which not only affects urban traffic and urban beautification, but also wastes water resources. Fire rescue has brought huge threat to people's life and property safety. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the object of the present invention is to provide a retractable fire hydrant installed below the ground. [0004] In order to realize the above-mentioned technical purpose, the technical schem...

AI Technical Summary

Problems solved by technology

[0002] While fire brings convenience to human beings, it also brings great disasters to human beings. Fire hydrant is a necessary fire-fighting facility in a city, which marks the development speed of a city. Fire-fighting facilities in cities are generally located above the ground, and often Crashed or even crashed by passing vehicles, the damaged fire hydrant will discharge a large amount of water, which not only affects urban traffic and urban beautification, but also wastes water resources. fire rescue, which poses a huge threat to the safety of people's lives and property

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