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Anti-fall elevator based on pressure and flow coupling control

A technology of coupling control and anti-fall, applied in the field of elevators, can solve the problems of delayed triggering, low sensitivity and failure of elevator speed limiters, and achieve the effect of improving sensitivity

Active Publication Date: 2020-12-15
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

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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  • Anti-fall elevator based on pressure and flow coupling control
  • Anti-fall elevator based on pressure and flow coupling control
  • Anti-fall elevator based on pressure and flow coupling control

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Embodiment Construction

[0025] refer to Figures 1 to 4 , an anti-fall elevator based on pressure and flow coupling control, including a car 2 set in the elevator shaft 1, a hanging wheel 3 set on the car 2, and several wheels that bypass the hanging wheel 3 and drive the car 2 to move. Wire rope, the car 2 is provided with a speed measuring cylinder linked with the suspension wheel 3 and a braking device that can make the car 2 decelerate and brake, and a speed changer is provided between the speed measurement cylinder and the suspension wheel 3.

[0026] The transmission includes a gear 4 linked with the suspension wheel 3 and a speed change mechanism 5 arranged between the gear 4 and the suspension wheel 3 . The speed change mechanism 5 can change the sensitivity of the speed measuring cylinder, so that the speed measuring cylinder can more sensitively monitor the upward or downward overspeed of the car 2. The first one-way valve 12 and the second one-way valve 13 make the air pressure in the sec...

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Abstract

The invention discloses a falling-preventing elevator based on pressure and flow coupling control. A speed measurement air cylinder comprises a cylinder body and a piston, wherein the piston is arranged in the cylinder body. An inner cavity of the cylinder body is divided by the piston into a first cavity and a second cavity. A rocker is arranged between a sliding rod and a gear. One end of the rocker is hinged with the end face of the gear, and the other end of the rocker is hinged with the sliding rod. A first one-way valve is arranged on the piston and enables the gas to flow to the secondcavity from the first cavity in a one-way mode. A second one-way valve is arranged on the cylinder body and enables the gas to flow out of the cylinder body from the second cavity in a one-way mode. The falling-preventing elevator based on pressure and flow coupling control has the beneficial effects that a speed change mechanism can change the sensitivity of the speed measurement air cylinder, and therefore the speed measurement air cylinder can more sensitively monitor the overspeed of ascent or descent of a lift car; and a pressure sensor and a flow sensor are linked to monitor the conditions of the air pressure and the flow in the second cavity, and therefore the speed measurement air cylinder can achieve pressure and flow coupling control, and the sensitivity of the speed measurementair cylinder can be improved. The invention relates to an elevator.

Description

technical field [0001] The invention relates to an elevator, in particular to an anti-fall elevator based on pressure and flow coupling control. Background technique [0002] In the prior art, the elevator speed 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 any reason, the car may overspeed or even fall, and all other safety protection devices do not work. live. Its technical defect is that: the elevator overspeed governor with centrifugal hammer structure has low sensitivity, and may fail or delay triggering when the elevator overspeeds, and there are certain potential safety hazards. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an anti-fall elevator based on the coupling control of pressure and flow, which can detect the elevator's upward and downward overspeed with high sens...

Claims

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Application Information

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Patent Type & Authority Patents(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
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