An elevator shaft personnel fall protection system

Abstract

The invention discloses a lift shaft people falling protection system which comprises a people falling buffering device (1), an air source device (2), monitoring devices (3) and an electronic control system (4). The people falling buffering device (1) comprises a buffering cushion (1.1) and a buffering cylinder group (1.7), the buffering cushion is arranged above the buffering cylinder group, the height of the whole people falling buffering device is lower than that of a lift car squatting tank buffer (5) by 30-100mm, the buffering cylinder group comprises an outer cover (1.8) and a cylinder (1.9), the stroke of the cylinder is larger than 150mm, the air source device is arranged at the bottom of a lift shaft, the monitoring devices are composed of sensors and arranged along an inner wall of the lift shaft at intervals, a lithium battery is adopted as an electronic control system power supply, and the electronic control system power supply comprises a monitoring loop, a cylinder ejection loop, a cylinder returning loop and a test loop. The lift shaft people falling protection system can reduce risks of casualties caused by the fact that people falling to a well fall to the squatting tank buffer, is reusable and easy to maintain and can still serve protection effect under the conditions of main supply outage.

Description

technical field [0001] The invention relates to a personnel fall protection system, in particular to a personnel fall protection system in an elevator shaft, belonging to the field of elevator safety protection. Background technique [0002] With the development of society, the use of elevators has become more and more common. It has been used only in commercial buildings and hotels, and has been used in office buildings, residential buildings and other places. Vertical elevators are the most common. Popularity has brought convenience to people's lives, but the accompanying elevator accidents have gradually increased, and people have begun to pay more and more attention to the safety protection measures of vertical elevators. [0003] At present, there are many common elevator protection measures, generally consisting of elevator speed limiter, safety gear, rope clamp, car squatting buffer, safety touch panel, landing door lock, elevator safety window, elevator overload limi...

AI Technical Summary

Problems solved by technology

[0007] 3. The device structure of the pop-up life-saving net is relatively complicated, and it must be calculated accurately to achieve the cooperation between the pop-up life-saving net and the fixed hook, and it is often used for one-time use, the reuse rate is low, and the disassembly and assembly are very complicated;

[0008] 4. The traditional protection system can only function when there is mains electricity. Once the elevator is powered off, the device will not work

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