High-pressure self-telescopic anti-wear and corrosion-resistant fire hydrant

Abstract

The invention provides a high-pressure self-telescopic anti-wear and corrosion-resistant fire hydrant, which comprises a base disposed below the earth's surface, a telescopic hydrant body disposed onthe base, the telescopic fire hydrant body comprises a first fire riser and a second fire riser with coaxial movable sleeve inside the first fire riser, the second fire riser can move along the central axis of the first fire riser in the first fire riser, a limiting mechanism is disposed between the first fire riser and the second fire riser, the limiting mechanism is configured to restrict the second fire riser from being separated from the first fire riser, the limiting mechanism is a limit step disposed on the inner circular surface of water outlet end of the first fire riser and a limitingrib disposed on the outer circular surface of the connection tube, wherein the limiting step is a built-in step which is narrowed toward the center of the inner circular surface of the first fire riser, and when the limiting rib is in contact with the built-in step, the second fire riser stops moving, at this time, a first water guiding hole and a second water guiding hole are connected by connecting a ring groove.

Description

[0001] This invention is a divisional application for an invention patent with the application date of November 25, 2017, the application number: 2017111983039, and the invention name "Fire Hydrant Based on Linkage Control of High-Pressure Water Source Power". technical field [0002] The invention relates to a fire fighting equipment, in particular to a fire hydrant. Background technique [0003] 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 inv...

AI Technical Summary

Problems solved by technology

[0003] 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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