The invention relates to a cage anti-falling
speed reduction buffer device. The cage anti-falling
speed reduction buffer device is composed of an
electromagnetic induction speed reduction device and an auxiliary
inflatable buffer device; an aluminum plate ring is fixed on a cage channel, when the cage falls, a speed sensor or an acceleration sensor exceeds a specified maximum value, automatic circuit conduction is achieved on the speed sensor or the acceleration sensor, the strong current generates a strong
magnetic field, according to the Lenz's law, when the cage passes through the aluminumplate ring, the
magnetic field of the induced current is always used for blocking the change of the
magnetic flux of the induced current, the generated resistance enables the cage to achieve speed reduction to be descended, the cage is descended safely through the step type speed reduction, the safety of the personnel is guaranteed, and the first protection effect is achieved; and a proximity switch enables a trigger to act, the current is sent to an igniter, the
sodium nitride propellant contained in the igniter is ignited, then a large amount of harmless gas which takes
nitrogen as a main gas can be generated, an air bag is inflated to a full state, and a second protection effect is achieved. According to the cage anti-falling speed reduction buffer device, the design is simple, the weight of the cage cannot be increased, the long-standing technical problem that the cage falls due to the facts that the case suffers from
rope breakage, failed braking and failure of an anti-falling device are solved, the work is reliable, the safety performance is high, and the practicability is high.