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Upward travel protector for lift

A technology for protection devices and elevators, applied in hoisting devices, transportation and packaging, elevators, etc., can solve problems such as old and new, achieve volume reduction, safe and reliable braking process, and avoid the effects of elevator topping accidents

Inactive Publication Date: 2008-01-30
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are hundreds of thousands of elevators in use in China, and they are different from old to new. It is a very complicated problem to carry out the transformation of safety devices to meet the requirements of uplink overspeed protection, and it is inevitable to put forward various requirements for elevator uplink protection devices.

Method used

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  • Upward travel protector for lift

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with accompanying drawing.

[0011] As shown in Fig. 1 and Fig. 2, the present invention includes a clamping mechanism, a trigger mechanism and a reset mechanism; the whole device is hinged on the base 10 with a box body 11, and three horizontal shafts are supported in the middle of the box body 11, which are respectively the cam shaft 15, Movable shaft 16 and lever body shaft 17. The cam body 2 is hinged on the cam body shaft 15, the movable shaft 16 is installed on one side of the cam body 2, and can rotate around the cam body shaft 15 with the cam body 2, and one end of the power spring 1 installed in the spring guide body 19 is fixed Hinged, the other end is pressed on the lower side of the cam body 2 to form a clamping mechanism, the guide groove on the box body 11 is equipped with a movable brake plate 3 and a fixed brake plate 4, two brake plates 3, 4 The side with the brake lining faces each o...

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Abstract

The upward travel protector for lift includes a clamping mechanism, a triggering mechanism and a resetting mechanism, and is held inside one box hinged to the pedestal. The power spring drives one end of the cam body to generate rotation moment, and cam surface presses the braking board to realize braking; the motion of the eccentric wheel and the rod generates reverse rotation torque to make the protector release; and the triggering force is reduced with the lever and the control board in special structure. The present invention can brake lift in case of accident overspeed during upward traveling. The present invention operates mechanically and has safe and reliable braking, greatly reduced triggering force, timely and accurate triggering, and compact structure. The present invention is also suitable for the braking of other system with steel cable.

Description

technical field [0001] The invention relates to an elevator upward protection device, in particular to an elevator upward protection device which utilizes a cam and combined with lever action to brake. Background technique [0002] In general, an elevator is a device for carrying passengers and goods in a high-rise building, and it is connected with a traction rope using a driving motor to perform lifting. As the safety protection device of the elevator, the elevator brake and the upward protection device are directly related to the performance of the elevator and the safety of passengers' lives and property. [0003] With the development of the elevator industry, countries around the world have higher and higher requirements for elevator operation safety. In the 1998 edition of the standard EN81-1 "Safety Code for Elevator Manufacturing and Installation" formulated by CEN, Article 9.10 has clearly stipulated that traction The driven elevator should be equipped with an upwa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/24B66B15/00B66D5/16B66B5/04
Inventor 徐兵张鸿墩张斌马吉恩
Owner ZHEJIANG UNIV
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