External water hose traction device with pipe diameter adjusting mechanism for metal extension ladder

Abstract

The invention relates to the technical field of traction devices, in particular to an external water hose traction device with a pipe diameter adjusting mechanism for a metal extension ladder. The external water hose traction device comprises a traction device main body, the traction device main body comprises an extension ladder shell, the inner wall of the extension ladder shell is connected with cross frames, the outer surface of one cross frame abuts against a first connecting ring, and the interior of the first connecting ring is connected with a suspension mechanism. According to the external water hose traction device with the pipe diameter adjusting mechanism for the metal extension ladder, a first traction ring can be effectively and conveniently fixed to the outer surface of one transverse frame through the arrangement of a hanging mechanism, and shaking, generated when a water hose is pressurized,of the first connecting ring is reduced; and the device is provided with the traction device, the water pressure weight in part of a water hose can be conveniently allocated to the waist of a firefighter, so that the operation time of fixed-point fire extinguishment is prolonged, and the fatigue feeling of the firefighter due to long-time fixed-point fire extinguishment can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of traction devices, in particular to an external hose traction device with a pipe diameter adjustment mechanism for metal ladders. Background technique [0002] Fire ladders are generally stretched out with ropes. The multi-section fire ladders extending in a straight line generally have two-section ladders and three-section ladder structures, and in fire-fighting and rescue operations on some low floors, it is necessary Use metal ladders. [0003] At present, some existing firefighters may need to use the ladder to enter the room from the outdoor balcony to attack inside when they are attacking in the fire room. At this time, when the firefighters carry the hose to climb the ladder and enter the room, The middle section of the hose is fixed on the surface of the ladder to facilitate the sharing of a part of the gravity of the hose by pulling the ladder, and at the same time, it can also increase a certain...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an externally connected hose traction device with a pipe diameter adjustment mechanism for a metal ladder, so as to solve the problem that some existing firefighters in the background technology mentioned in the above-mentioned background technology when they are fighting indoors when a fire occurs The problem of inconvenient water belt traction

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