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High-sensitivity completely-passive anti-stall elevator

A high-sensitivity, passive technology, applied in the field of elevators, can solve problems such as failure or delayed triggering, low sensitivity of elevator speed limiters, hidden safety hazards, etc., to achieve the effect of high sensitivity

Active Publication Date: 2019-04-23
阿联商贸(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Its technical defect lies in: the elevator speed limiter with centrifugal hammer structure has low sensitivity, and may fail or delay triggering when the elevator overspeeds, and there are certain safety hazards

Method used

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  • High-sensitivity completely-passive anti-stall elevator
  • High-sensitivity completely-passive anti-stall elevator
  • High-sensitivity completely-passive anti-stall elevator

Examples

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Embodiment Construction

[0031] refer to Figures 1 to 6 , a high-sensitivity fully passive anti-stall elevator, including a guide rail 1 arranged in the hoistway and a car 2 moving along the guide rail 1 in the hoistway, the car 2 is provided with a roller 3, a speed measuring cylinder 4 and a locking device, the roller 3 Roll along the length of the guide rail 1 .

[0032] The speed measuring cylinder 4 includes a cylinder 5 fixed on the car 2, a first piston 6 and a second piston 7 arranged in the cylinder 5, and the first piston 6 and the second piston 7 divide the inner cavity of the cylinder 5 into The first cavity 8 , the second cavity 9 and the third cavity 10 , one end of the first piston 6 is provided with a first sliding rod 11 , and the first sliding rod 11 passes through the first cavity 8 and extends out of the cylinder 5 In addition, one end of the second piston 7 is provided with a second sliding rod 12, the second sliding rod 12 passes through the third cavity 10 and extends out of t...

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Abstract

The invention discloses a high-sensitivity completely-passive anti-stall elevator. A first one-way valve is arranged on a first piston and allows gas in a first chamber to flow to a second chamber ina one-way manner; a second one-way valve is arranged on a cylinder block and allows gas in the second chamber to flow out of the cylinder block in a one-way manner; and when the gas pressure in the second chamber increases to push a second piston to drive a second slide rod to move out of the cylinder block, the second slide rod triggers a locking device, which contacts a guide rail and prevents alift car from moving along the guide rail. The high-sensitivity completely-passive anti-stall elevator has the following beneficial effects: when the elevator runs over a speed limit, the rotation speed of a roller increases and the reciprocating movement of the first piston accelerates; because the gas exhausting capability of the second one-way valve is limited, the gas pressure in the second chamber can increase rapidly to push the second slide rod to move out of the cylinder block, so as to trigger the locking device to brake the elevator. The elevator has high sensitivity, and up-going and down-going overspeed of the elevator can be detected. The invention relates to an elevator.

Description

technical field [0001] The present invention relates to elevators, in particular to high-sensitivity fully passive anti-stall elevators. Background technique [0002] In the prior art, the elevator governor generally adopts a centrifugal hammer structure, which is one of the safety control components in the elevator safety protection system. When the elevator is running, for whatever reason, the car is overspeeding, or even in danger of falling, and all other safety protection devices do not work, the speed limiter and the safety gear will act in linkage to stop the elevator car. live. [0003] The technical defect lies in the fact that the elevator speed limiter of the centrifugal hammer structure has low sensitivity, and may fail or delay triggering when the elevator is over-speeding, which has certain potential safety hazards. SUMMARY OF THE INVENTION [0004] The technical problem to be solved by the present invention is to provide a high-sensitivity completely passi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/04B66B5/26
CPCB66B5/044B66B5/26
Inventor 郭春丽郭峰彭姣凤
Owner 阿联商贸(深圳)有限公司