A safety protection system for elevators falling

A safety protection and elevator technology, applied in the field of safety protection system, can solve the problems of lack of buffering effect, bone damage, limited buffering effect, etc., to achieve the effect of avoiding vibration, protecting personal safety, and reducing the impact force of falling

Inactive Publication Date: 2020-06-02
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the built-in shock absorbers at the bottom of the elevator shaft are usually oil-filled cylinders and pistons, which basically have no buffering effect in case the cable breaks. There are also some inventions of buffering devices that have a certain buffering capacity, but for the number of layers The cushioning effect of taller buildings is very limited, and there are jumps in reducing the change of impact force, which is not stable enough. If there are old people and children in the car, or people are standing in an unstable posture, it is very easy to damage the bones of the people in the car. cause some damages

Method used

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  • A safety protection system for elevators falling
  • A safety protection system for elevators falling
  • A safety protection system for elevators falling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] For buildings below 100 floors, such as figure 1 , 2 , shown in 3 and 4, a safety protection system for when the elevator falls, including a shaft 7 and an elevator car 6, the elevator car 6 is arranged in the shaft 7, it also includes a linear motor buffer device 1, an air Spring device 2, magnetic levitation system buffer device 3, "claw" type airbag buffer device 4 and detection device 5;

[0035] The linear motor buffer device 1 is a linear motor, the primary 11 of the linear motor is placed on both sides of the hoistway 7, and the secondary 12 is placed on both sides of the elevator car 6 to be opposite to the primary 11;

[0036] The air spring device 2 is a group of air springs 21 with hyperbolic airbags evenly distributed in an annular array, which is arranged outside the bottom of the elevator car 6;

[0037]The magnetic levitation system 3 includes a telescopic cylinder 31, a bottom balance magnet 32, a coil 33, a balance base 34 and a linear Hall sensor 35,...

Embodiment 2

[0047] For buildings with more than 100 floors, the difference from the above-mentioned embodiment 1 is that the parameters of each device are improved to adapt to the sudden falling situation of different floors.

[0048] The main device parameters are described as follows:

[0049] The permanent magnet 111 that N pole, S pole are arranged alternately and the permanent magnet 341 of described balance base 34 can adopt strong magnetic material compared with embodiment 1, as NdFeB magnet, if necessary, in producing traveling wave magnetic field Under the premise, the permanent magnet 111 can be replaced by a combination of a coil and an iron core to form the same structure as the coil winding 121, greatly increase the reverse braking force, and ensure the safety of use on super high floors.

[0050] Further, the width of the coil winding 121 and iron core 122 of the secondary 12 of the linear motor is 35%-50% of the width of the car, and the optimal width is used depending on t...

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Abstract

The invention relates to a safety protection system used during elevator falling. The safety protection system comprises a well and an elevator car arranged in the well. The safety protection system further comprises a linear motor buffering device, an air spring device, a magnetic suspension system buffering device, a claw-shaped air bag buffering device and a detection device. A magnetic suspension system comprises a telescopic cylinder, a bottom balance magnet, a coil, a balance base and a linear hall sensor. The claw-shaped air bag buffering device comprises a claw-shaped air bag, a piezoelectric transducer and an inflation device. The detection device comprises a speed sensor, a microprocessor, a power amplifier and a storage battery. According to the safety protection system used during elevator falling, through multi-protection, the stable stepless buffering function can be achieved during elevator falling, personal safety can be protected as well, and the fighting fear of personnel in the elevator car to elevator falling is eliminated.

Description

technical field [0001] The invention relates to the technical field of elevator safety protection, in particular to a safety protection system for an elevator falling. Background technique [0002] The essence of the elevator is a lifting device. A fall accident in the lifting of the goods will directly cause damage to the goods, resulting in economic losses. When the elevator falls, it will directly threaten the safety of human life. Life is priceless. , so it is more necessary and important to reasonably and effectively protect the elevator from falling accidents. [0003] At present, although there are many safety measures for elevators, from a national perspective, such small-probability incidents also occur from time to time, and car elevators in public places such as residential buildings or commercial buildings are all safe for elevators falling out of control. There is no reasonable and effective response to the situation. At present, the built-in shock absorbers a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/28
CPCB66B5/282B66B5/284
Inventor 王爱红鲍东杰高有山李思超杨蓉萍王毅然弓旭峰
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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