Floor wind resistance prevention helicopter emergency escape ladder for fire

Abstract

The invention discloses a floor wind resistance prevention helicopter emergency escape ladder for a fire disaster, and relates to the technical field of emergency escape ladder equipment. The floor wind resistance prevention helicopter emergency escape ladder for the fire comprises a differential adjusting device, a pressure connecting device and a wind resistance prevention ladder assembly, the pressure connecting device is movably installed at the bottom of the differential adjusting device, and the wind resistance prevention ladder assembly is movably connected to the bottom of the pressure connecting device. According to the floor wind resistance prevention helicopter emergency escape ladder for the fire disaster, a motor is used for driving a gear to rotate, and the diameter difference between the gear and a semicircular large gear is too large during rotation, so that the semicircular large gear and a connecting frame block can be very stably prized by taking a [frame shaft as a fulcrum when the gear rotates; due to the meshing effect of the motor driving gear and the semicircular large gear, the clamping effect can be achieved, the pressure connecting device and the windproof ladder assembly are almost not shaken after being indirectly driven to move, the trouble of manual control of people is reduced, and the stability of the windproof ladder assembly is greatly enhanced.

Description

technical field [0001] The invention relates to the technical field of life-saving ladder equipment, in particular to a fire-resistant floor wind-resistant helicopter life-saving ladder. Background technique [0002] The life-saving ladder is a mobile ladder used to rescue and evacuate people trapped in a fire scene. It can be stored in a packaging bag. It is used for life-saving in critical situations where the stair passage is closed in the event of a fire or accident in a building. effective tool. [0003] When encountering a higher floor with a relatively serious fire, the fire at the bottom burns from the outside of the floor, making it impossible for people to directly use the ladder to enter the floor from the bottom. At this time, under certain conditions permitting, it may even be possible to use a direct machine to carry out rescue directly. mission, while using a helicopter in the rescue process, due to the long radius of the direct propeller, it needs to keep a ...

AI Technical Summary

Problems solved by technology

[0003] When encountering a higher floor with a relatively serious fire, the fire at the bottom burns from the outside of the floor, making it impossible for people to directly use the ladder to enter the floor from the bottom. At this time, under certain conditions permitting, it may even be possible to use a direct machine to carry out rescue directly. mission, while using a helicopter in the rescue process, due to the long radius of the direct propeller, it needs to keep a certain distance from the floor, which requires a strong and stable ladder to extend one end of the ladder to the edge of the floor is the window sill , due to the small internal space of the helicopter, the retracted state must be ensured when the lifesaving ladder is not in use, and the stability of the ladder cannot be guaranteed under the folded and contracted state. The longer the ladder point extends, the lower the stable type will be, so that the lifeguard cannot smoothly transport the ladder end to the window sill. Therefore, a kind of fire-proof floor wind resistance helicopter life-saving ladder is invented.

Images