Ladders and Fire Trucks

Abstract

The invention discloses an aerial ladder. The aerial ladder comprises a straight ladder unit and a folding ladder (1), wherein the straight ladder unit can relatively extend out and retract along the height direction of the aerial ladder, and the folding ladder is located on the top of the aerial ladder at the extension state of the aerial ladder; the straight ladder unit and the folding ladder are driven by a winch (2) so as to ensure that the folding ladder extends out before the straight ladder unit extends out and retracts after the straight ladder unit retracts. The invention also discloses a fire fighting truck which is provided with the aerial ladder. Compared with a straight-arm aerial ladder in the prior art, the aerial ladder has the advantage that the capacity of the aerial ladder adapting to complicated rescue environments is improved. By adopting the aerial ladder, the structure of the fire fighting truck with a crank arm aerial ladder in the prior art can be simplified, and manufacturing cost of the fire fighting truck with the crank arm aerial ladder is reduced.

Description

Technical field [0001] The present invention relates to the field of fire protection, in particular, to an aerial ladder and a fire truck. Background technique [0002] Ladder fire trucks play a very important role in high-altitude operations, fire fighting, fire fighting, rescue, and earthquake rescue and rescue. The ladder fire trucks can be divided into straight arm ladder fire trucks and curved arm ladder fire trucks according to the presence or absence of folding ladders. At present, the crank arm ladder fire truck is only produced by a few foreign manufacturers, and there is no domestic manufacturer. [0003] Attached figure 1 It is a schematic structural diagram of a straight arm ladder in the prior art. The straight-arm ladder has a multi-section straight ladder, and each section of the straight ladder is generally synchronized with the pulling of a steel wire rope, and the steel wire rope is driven by the hoist 2. For ease of illustration, figure 1 Shown in is the effec...

AI Technical Summary

Problems solved by technology

Straight-arm aerial ladders have poor ability to adapt to complex rescue environments, and each section of the vertical ladder can only be retracted synchronously, and the ability to quickly adjust in a small area is poor, and the rescue efficiency is not high

The curved-arm aerial ladder needs to be equipped with a driving device for double hoists, which leads to high manufacturing costs, and the hoist takes up a large space, which has obvious disadvantages for professional vehicles such as aerial ladder fire trucks that require a very compact structure.

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