Anti-falling protection device of elevator

Abstract

The invention discloses an anti-falling protection device of an elevator. According to the anti-falling protection device, when a lift car falls accidentally, rotating wheels of a first speed limiterand a second speed limiter above an elevator shaft change the centrifugal force due to too fast rotating speed so as to stop rotating, at the moment, the speed limiters stop rotating, so that a braking effect is generated on the falling of the car; safety ropes are arranged in the elevator shaft, and the length of the safety ropes is consistent with the height of the elevator shaft so that when the lift car falls, the safety ropes can ensure that the lift car cannot be collided with the ground; first buffer springs are arranged in the lift car, and second buffer springs and third buffer springs are arranged at the bottom of the lift car so that when the lift car falls, the three layers of buffer springs at the bottom can absorb the falling force; a polyurethane buffer is arranged at the position, corresponding to a counterweight block, below the lift car in the elevator shaft so that the falling lift car can be effectively buffered; and therefore, deceleration buffering is carried outon the falling elevator in the aspect of bottom buffering and upper power traction by the anti-falling protection device, the structure is simple, and the safety and reliability are high.

Description

technical field [0001] The invention relates to the technical field of an elevator anti-fall protection device, in particular to an elevator anti-fall protection device. Background technique [0002] At present, the elevator is a vertical lift powered by a motor, equipped with a box-like gondola, and used for multi-storey buildings to take people or carry goods. In recent years, accidents of casualties caused by elevator failures have occurred frequently, causing people In the elevator failure, the consequences of the elevator falling accident caused by the breaking of the lifting cable are the most serious. Such accidents often cause serious injuries and death to the people in the elevator. The shaking is too large, and there is only one lifting device. When the device is damaged, there is no other device to replace it, and accidents often occur. [0003] Therefore, there is a need for an efficient and stable elevator fall protection device to avoid disasters. Contents o...

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Problems solved by technology

[0002] At present, the elevator is a vertical lift powered by a motor, equipped with a box-like gondola, and used for multi-storey buildings to take people or carry goods. In recent years, accidents of casualties caused by elevator failures have occurred frequently, causing people In the elevator failure, the consequences of the elevator falling accident caused by the breaking of the lifting cable are the most serious. Such accidents often cause serious injuries and death to the people in the elevator. The shaking is too large, and there is only one lifting device. When the device is damaged, there is no other device to replace it, and accidents often occur

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