Reciprocating descent control device

Abstract

The invention discloses a reciprocating descent control device. A rotating shaft is arranged on a bracket and is provided with a winding drum; a steel wire rope is wound on the winding drum around a pulley; a damping cylinder is arranged on the bracket close to the rotating shaft; a piston of the damping cylinder is connected with the rotating shaft through a crank slider mechanism; and a small hole is formed on the piston. The preferable scheme of the invention is that: the reciprocating descent control device is provided with two damping cylinders, and a rotation angle of the crank slider mechanism which is connected with the damping cylinders is staggered for 90 degrees. Therefore, the dead center of the crank slider mechanism is avoided, the speed is steady during descent control, and the winding of the steel wire rope due to the speed change is avoided. The reciprocating descent control device is not controlled by a user at all during use, can realize continuous descent control, and has the advantages of steady operation, safety and reliability, and low production cost.

Description

technical field [0001] The invention relates to a high-rise escape device when a disaster occurs, in particular to a reciprocating descending device which uses a damping cylinder to delay the descending speed. Background technique [0002] With the development of society, more and more people live in high-rise buildings. Out of consideration for their own safety, people pay more and more attention to the design and development of high-rise escape devices, especially when a disaster occurs. People who don't know how to deal with danger in tall buildings are even more thought-provoking. [0003] In recent years, many enterprises and individuals at home and abroad have also carried out research and improvement on high-rise escape devices, and some have even been pushed into the market, including soft ladders, ropes, mechanically controlled and electric, and there are many types. But some escape distances of these escape devices are short and cannot be used for high-rise escape...

AI Technical Summary

Problems solved by technology

However, some of these escape devices have a short escape distance and cannot be used for escape from high-rise buildings; some are used for one-time escape.

[0004] Chinese patent CN200720139704.2 provides a slow-down device with hydraulic damping. Both ends of the hydraulic cylinder are connected through oil pipes, and a valve is set in the middle of the oil pipe to realize slow-down through the resistance generated by the flow of hydraulic oil in different sections. , but the structure of this method is more complicated, the production cost is higher, and the connection points of the pipeline are more, which increases the probability of failure

[0005] The existing descending devices mostly use hooks during installation, and are fixed by hooks, screws or bolts. However, it should be considered that at the scene of an emergency, it is difficult for people to find a place for fixing because of time urgency or psychological panic. or find tools for immobilization, delaying the escape time

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