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Bi-directional safety tongs

A safety gear and roller technology, applied in the field of safety gear, can solve problems such as inconvenient installation

Active Publication Date: 2013-10-23
XJ SCHINDLER XUCHANG ELEVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a two-way safety gear to solve the problem of inconvenient installation in the narrow space of the hoistway when two sets of overspeed brake safety gear are used to brake the elevator car in two directions in the prior art

Method used

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  • Bi-directional safety tongs

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Embodiment Construction

[0009] An embodiment of a two-way safety gear, in figure 1 Among them, the installation frame is square, with two side plates 3 on both sides, and the two side plates 3 are arranged in parallel, and an end plate 2 is fixedly arranged at one end of the two side plates 3, and the end plate 2 connects the two side plates Connected together, a guide hole is provided on the end plate 2, and the brake roller linkage rod 1 is guided through the guide hole, and the brake roller linkage rod 1 is fixed on the part between the two side plates 3 The pulling plate 7 and the lifting plate 7 are provided with two chute 8, and the two chute 8 are respectively located on both sides of the roller linkage rod 1, and the extension direction of the two chute 8 is perpendicular to the two side plates 3. Drive wedges 5 are respectively fixed on the inner side walls of the two side plates, and leaf springs 4 are set between the two drive wedges 5 and the corresponding side plates 3 . One side of th...

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Abstract

The invention discloses a bi-directional safety tongs. A guiding hole is arranged on an end plate of an installing frame body; a braking roller linkage rod is arranged in the guiding hole in a penetrating way; a lifting plate is fixed on the braking roller linkage rod; sliding chutes with extending directions being vertical to two side plates are respectively arranged on two sides of the braking roller linkage rod on the lifting plate; a braking roller is arranged in each sliding chute; one end of a wheel axle of each braking roller is inserted in the corresponding sliding chute in a sliding way; square drive wedge blocks are respectively fixed on inner side faces of the two side plates; a plate spring is arranged between each drive wedge block and the corresponding side plate; corresponding faces of the two drive wedge blocks are V-shaped faces matched with wheel faces of the braking rollers in a rolling way; V-shaped sliding chutes are arranged on two limiting plates on the two side plates; and the other ends of the wheel axles of the two braking rollers are in sliding fit with walls of the corresponding V-shaped sliding chutes. When the braking roller linkage rod drives the lifting plate to move up or down, the two braking rollers can move together, and can clamp a track to realize braking of a lift car.

Description

technical field [0001] The invention relates to a safety gear for braking an elevator car, in particular to a two-way safety gear for braking an elevator car when the elevator car is overspeeding upward or downward. Background technique [0002] In order to prevent the elevator from going up or down too fast and causing accidents, safety gears are generally installed at both ends of the lower beam. When the car overspeeds, the speed limiter set in the elevator shaft moves to drive the safety gear to clamp the track to stop the car. , the elevator braking device in the prior art generally realizes the clamping of the track through the sliding of triangular wedges, and is usually divided into two sets of systems, the uplink overspeed brake safety gear and the downlink overspeed brake safety gear. Wedges cannot complete the clamping of the guide rail in two directions. The two sets of system equipment are relatively large, and it is inconvenient or even difficult to install whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/18
Inventor 孙红亮亢伟超王继培李扬寇珊迪
Owner XJ SCHINDLER XUCHANG ELEVATOR
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