Anti-tempering-type drilling type fire-fighting lance

Abstract

The invention discloses an anti-tempering-type drilling type fire-fighting lance. The fire-fighting lance comprises a support, a fixing sleeve, a drilling pipe, a top end fixing seat and a sealing sliding seat, wherein handles are symmetrically arranged on the left side and the right side of the support, and a tripod is arranged below the support; the fixing sleeve is arranged in the middle of thesupport, and drilling sawteeth are arranged at the front end of the drilling pipe; the top end fixing seat is slidably connected with the drilling pipe through a top end shaft sleeve, and a top end sealing ring is arranged at the front end of the top end fixing seat; and the sealing sliding seat is nested in the inner side of the drilling pipe, and a water lance nozzle is arranged at the front end of the sealing sliding seat. According to the fire-fighting lance, drilling can be conducted on the space where the explosion may occur through the drilling pipe, corresponding sealing structures can be arranged on the outer side and in the middle of the drilling pipe, so that the space can still keep closed after drilling, the outside air can be prevented from entering, the sealing sliding seatis arranged in the middle of the drilling pipe, and can slide in the drilling pipe, so that the water lance nozzle can be pushed to enter the closed space from the drilling pipe, the water lance nozzle can perform water spraying and extinguishing work in the closed space, so that the danger of fire explosion is eliminated.

Description

technical field [0001] The invention relates to fire-fighting equipment, in particular to an anti-backfire drilling type fire-fighting water gun. Background technique [0002] There is a very dangerous phenomenon at the fire scene. When a fire occurs in a confined space, because the space is relatively sealed and oxygen is insufficient, incomplete combustion will generally occur and a large amount of toxic, flammable and explosive gases such as carbon monoxide will be produced. However, due to insufficient oxygen, so These toxic, flammable and explosive gases cannot be burned and consumed, and the components are accumulated in the confined space. At this time, if the doors and windows of the confined space are opened and a large amount of fresh air is poured in, the large amount of toxic, flammable and explosive gases in the confined space will instantly reach the deflagration point, resulting in Deflagration or even explosion, this is the backfire phenomenon, and it is very...

AI Technical Summary

Problems solved by technology

[0002] There is a very dangerous phenomenon at the fire scene. When a fire occurs in a confined space, because the space is relatively sealed and oxygen is insufficient, incomplete combustion will generally occur and a large amount of toxic, flammable and explosive gases such as carbon monoxide will be produced. However, due to insufficient oxygen, so These toxic, flammable and explosive gases cannot be burned and consumed, and the components are accumulated in the confined space. At this time, if the doors and windows of the confined space are opened and a large amount of fresh air is poured in, the large amount of toxic, flammable and explosive gases in the confined space will instantly reach the deflagration point, resulting in Deflagration or even explosion, this is the backfire phenomenon, and it is very dangerous for firefighters to encounter this situation in the fire scene

The applicant finds that the existing fire-fighting equipment is difficult to cope with this kind of fire. In order to eliminate this danger, it is often necessary to extinguish the fire while keeping the space airtight, reduce the temperature of the space, and eliminate the open flame point, so that the flammable and explosive gas cannot reach the fire. ignited, but existing firefighting equipment cannot do this

Images