Powder fire truck

Abstract

The invention discloses a powder fire truck, comprising a chassis; a swing mechanism arranged on the chassis; a jib arranged on the swing mechanism; and a driving gas source, a powder supply device, apowder conveying pipeline and an injection device which are sequentially connected, wherein the injection device is arranged on the tail end of the powder conveying pipeline. The jib comprises at least three jib sections, with their head ends and tail ends sequentially hinged together; and when the jib is in an unfolding trend, at least two jib sections rotate around the respective head-end hingejoint in opposite directions. With such a structure, the jib can realize forward and backward folding in opposite directions, and is thus more flexible in motion, stronger in obstacle climbing ability and better in precise adjustment ability; so the conveying pipeline arranged along the jib can quickly and accurately reach an ignition point under the driving of the jib, or even reach an ignitionpoint below the position of the fire truck, for precise spraying of powder at a close distance, and thus, the fire extinguishing capacity and the applicable range of the powder fire truck are greatlyimproved, and the fire extinguishing efficiency of the powder fire truck is higher.

Description

technical field [0001] The invention relates to the field of fire-fighting machinery, in particular to a powder fire-fighting vehicle. Background technique [0002] At present, in order to transport the powder to the ignition point, the powder fire truck adopts the following methods: figure 1 The conveying pipeline shown sprays the powder directly, and the second is to use a telescopic straight arm or such as figure 2 The one-way folding arm shown is used as a boom structure to support the conveying pipeline for spraying powder. In this way, whether it is directly adjusting the length and direction of the conveying pipeline or indirectly adjusting the length and direction of the conveying pipeline by controlling the telescopic straight arm or the one-way folding arm, the conveying pipeline is not flexible enough due to itself or the arm frame. Weak obstacle surmountability and poor precision adjustment ability, the conveying pipeline cannot reach the ignition point quickl...

AI Technical Summary

Problems solved by technology

In this way, whether it is directly adjusting the length and direction of the conveying pipeline or indirectly adjusting the length and direction of the conveying pipeline by controlling the telescopic straight arm or the one-way folding arm, the conveying pipeline is not flexible enough due to itself or the arm frame. Weak obstacle surmountability and poor precision adjustment ability, the conveying pipeline cannot reach the ignition point quickly and accurately, and even cannot flexibly reach some ignition points (for example, some ignition points lower than fire trucks) to spray powder, which greatly reduces the power of powder fire trucks. Fire extinguishing efficiency and capacity

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