A descender that absorbs energy through a damping element

Abstract

The invention relates to a descender that absorbs energy through a damping element, and belongs to the technical field of fire fighting and sports equipment. The lower sheave (3) and the upper sheave (5) of the present invention abut against the rubber spring (7) through grooves, so that the rubber spring 7 stretches and absorbs the kinetic energy of the person falling. The rubber spring (7) of the present invention abuts against the lower sheave (3) and the upper sheave (5) through the roller (71) and rolls relatively, avoiding sliding friction with the rope (4), and improving the strength of the rope (4) Service life. The rubber spring (7) of the present invention wraps the rubber layer, and through the rubber layer, the heat dissipation joint (61) of the sub-plate and the heat dissipation joint (12) of the main board are clamped to avoid foreign matter invasion and jamming, and can ensure safety and reliability, and the heat dissipation part is far away from the Rope (4) down also can fully dissipate heat. The invention adjusts the damping and energy-absorbing effect of the rubber spring (7) by adjusting the screw (66) and the control rope (9), thereby avoiding violent fluctuations in the descending speed and preventing panic.

Description

technical field [0001] The invention relates to a descender, which belongs to the technical field of fire fighting and sports equipment. Background technique [0002] The descender strengthens the cushioning effect by increasing the friction force on the rope, so as to achieve the purpose of slow descent, and is used for expanding training, working at heights, outdoor sports and protecting rescuers and trapped persons in rescue. At present, people have proposed various descenders, and the known 8-character ring is a simple descender. The invention patent with the application number 201711285325.9 proposes a self-locking descender with a handle and a cam, which can be fastened to the rope and can be used for outdoor sports, rescue and high-altitude operations, which can prevent panic and avoid the risk of accidental descent . The invention patent with the application number 201280019576.1 also proposes a self-braking descender with anti-panic function, which is provided wit...

AI Technical Summary

Problems solved by technology

[0004] Compared with the descending device, the descending device does not need to accommodate ropes, is light in weight, simple in structure, small in size, easy to manipulate, and good in heat dissipation, but it is easy to cause psychological panic

The descending device in the prior art is fixed on the rope, and the descending speed is controlled through the sliding friction between the descending device and the rope or between the rope and the rope. At the same time, the kinetic energy of the person descending is converted into heat energy, which will inevitably cause the local temperature of the friction part to rise. , it is easy to cause metal fatigue and deformation, and the rope is severely worn, which reduces the service life of the rope, and needs to be checked carefully in time

The current slow descent device winds the rope on the winding wheel, and through the friction or damping of the speed controller, the kinetic energy of the person's descent is converted into heat energy and kinetic energy of the rotating parts. failure risk

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