Fire-fighting lance capable of adjusting water flow spraying distance for public safety

Abstract

The invention discloses a fire-fighting lance capable of adjusting the water flow spraying distance for public safety. The fire-fighting lance comprises a fire-fighting lance body, a water-inlet valvebody is arranged at the rear end of the fire-fighting lance body, a pipeline is arranged at the position, close to the water-inlet valve body, of one end of the fire-fighting lance body, a fire-fighting lance head is arranged at the front end of the fire-fighting lance body, a water-inlet valve element is arranged in the water-inlet valve body, a water-inlet valve seat is welded to the bottom ofthe water-inlet valve body, a water inlet is formed in the bottom of the water-inlet valve seat, a water-inlet valve hand wheel is arranged at the top of the water-inlet valve element, a rapid flow channel is formed in a speed regulating valve element, a speed regulating valve seat is arranged at the front end of the speed regulating valve element, a slow flowing channel is arranged in the speed regulating valve seat, and a wear-resisting nozzle is arranged at the front end of the fire-fighting lance head. A water spraying opening is formed in the wear-resisting nozzle, the structure is simple, the connection is convenient, the service lifetime is prolonged through the arrangement of a filter screen plate and the wear-resisting lance head, the water flow spraying distance can be adjusted,the usage by a user is facilitated, and the fire-fighting lance is more suitable for public occasions.

Description

technical field [0001] The invention relates to the technical field of fire-fighting equipment, in particular to a fire-fighting water gun for public safety with adjustable water jetting distance. Background technique [0002] The fire water gun is a common device in the field of fire protection. It is used to spray water to a long distance. The range of the water gun determines the scope of application of the water gun. The distance of the range of the fire water gun in the prior art is related to the water pressure, the nozzle of the water gun and the length of the pipeline connection. Usually, when the fire is extinguished, the nozzle of the fire water gun is fixed, and the water pressure pumped into the water gun is adjusted unchanged. , is also relatively fixed. [0003] The existing equipment is inconvenient to adjust the distance, wastes a lot of resources, cannot be used in public places, has a short service life, is easy to block the gun body, and is too close to t...

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a fire-fighting water gun with adjustable spraying distance for public safety, which can effectively improve the inconvenience of adjusting the distance described in the background technology, the waste of resources is large, it cannot be used in public places, and the service life is not long. It is easy to block the gun body, too close to the fire source, causing unnecessary casualties and other problems

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