High-rise escape backpack with controllable slow descent speed

Abstract

The invention discloses a high-rise escape backpack with a controllable slow descent speed, relates to the technical field of escape backpacks, and solves the technical defect that the slow descent speed of an existing escape backpack cannot be controlled. According to the technical scheme, the high-rise escape backpack comprises a backpack body and a slow descent device, and the slow descent device comprises a fixing frame, a central shaft, a winding wheel disc, a planetary gear mechanism and a friction damping mechanism. The high-rise escape backpack has the beneficial effects that the friction damping mechanism comprises a passive centrifugal type speed reducing mechanism and an active air brake type speed reducing mechanism, and the active air brake type speed reducing mechanism comprises a first brake assembly, a second brake assembly and a pneumatic brake control assembly; and each brake assembly comprises a brake bin, a brake wheel disc, a brake ejector rod, a limiting base, a driving gear disc, a driving rack and a brake air cylinder, the brake air cylinders are controlled by the pneumatic brake control assembly to push the driving racks so that the driving gear discs can rotate, and the brake ejector rods are driven by arc-shaped driving grooves to clamp the brake wheel discs so as to increase friction damping of the descent control device, so that the descent control speed is controlled, the structure is simple and reliable, and the use is convenient.

Description

technical field [0001] The invention relates to the technical field of escape backpacks, and more specifically relates to a high-rise escape backpack capable of adjusting the damping size according to actual needs during use to control the slow-down speed. Background technique [0002] With the enhancement of people's safety awareness, residents living on higher floors usually equip high-rise escape backpacks at home. The basic mechanism of the utility model includes a fixed frame, in which a winding roulette is rotatably connected to a central shaft, and a wire rope that can drive the winding roulette to rotate is coiled on the winding roulette. The tail end of the wire rope is fixed on the winding reel, and the head end of the wire rope is provided with a safety hook that extends out of the escape backpack through the upper end of the fixing frame and is hung on the indoor fixed anchor point. The slow descender is also equipped with a planetary gear mechanism for driving ...

AI Technical Summary

Problems solved by technology

[0005] In summary, the purpose of the present invention is to solve the technical deficiencies of the existing escape backpacks, such as unreasonable structural design, unadjustable damping size, uncontrollable slow-down speed, and low applicability, and provide an escape backpack that can be used according to actual conditions during use. It is necessary to adjust the damping size at any time, so as to control the slow down speed, which is suitable for high-rise escape backpacks used by people of different weights

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