Gas backflush slowly descending elevator anti-falling device and method

Abstract

The invention relates to the technical field of elevator safety equipment, in particular to a device and method for realizing elevator anti-falling in a gas backflush mode. The special device is applied to anti-falling under an emergency condition of an elevator, the device comprise the following parts of an elevator structure frame, a falling speed sensor, an elevator-to-ground height sensor, liquid gas storage columns and gas backflush ejectors; and the device is characterized in that the falling speed sensor is installed on the elevator structure frame, the elevator-to-ground height sensoris installed on the elevator structure frame, the liquid gas storage columns are installed at the bottom of the elevator structure frame, and the gas backflush ejectors are installed under the liquidgas storage columns. According to the device and method for realizing elevator anti-falling in the gas backflush mode, the structure is compact, the implementation is easy, elevator falling-down accidents can be effectively avoided, the safe reliability in the use process of the elevator is greatly improved, and a novel method and a novel approach are provided for an elevator anti-falling safety technology.

Description

technical field [0001] The invention relates to the technical field of elevator safety equipment, in particular to a device and method for realizing elevator fall prevention through gas recoil. Background technique [0002] With the development of the trend of urban population concentration, the number of high-rise buildings in the city is increasing year by year, and the use of elevators has become particularly extensive. Elevator safety has gradually become an issue of increasing concern, especially for vertical take-off and landing elevators. Once a failure occurs, there is a danger of falling. The occupants in the elevator will not only suffer serious physical threats to their lives, but also bear a huge psychological burden. [0003] At present, there are many elevator anti-fall devices to prevent the elevator from falling when it fails, but these anti-fall devices still have many disadvantages and limitations. For example 1: The elevator speed limiter and rope gripper...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many elevator anti-fall devices to prevent the elevator from falling when it fails, but these anti-fall devices still have many disadvantages and limitations.

For example 1: The elevator speed limiter and rope gripper used in the past are used to prevent the elevator from falling. The disadvantage is that the speed limiter and the rope gripper can only work when the elevator needs to fall at a certain speed. Unavoidable elevator fall

For example 2: Using the electric drive safety locks such as electric control locks in the past to realize the form of elevator fall prevention, its disadvantage: when the elevator suddenly loses power, the electric control lock is prone to failure under power failure conditions, and it cannot guarantee that the elevator will lock the elevator to prevent it from falling to fall

[0004] The above shortcomings affect the safety of the elevator to a certain extent. In order to solve the above problems, this patent uses the reaction force formed by the compressed gas injection to realize the principle of deceleration and slow down during the elevator's falling process, and proposes a gas recoil slow down elevator. The anti-fall device and method can realize the safety function of decelerating and descending to protect the elevator occupants when the elevator fails and falls

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