Instantaneous type safety gear for elevator

A safety gear and elevator technology, applied in elevators, transportation and packaging, etc., can solve the problems of low elevator manufacturing cost, high manufacturing cost and high braking force, and achieve the effect of low manufacturing cost, lower elevator load-bearing and high braking force.

Active Publication Date: 2013-07-31
HANGZHOU HUNING ELEVATOR PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an instantaneous safety gear with high braking force and low elevator manufacturing cost for the elevator industry, to overcome the problems caused by the low braking force and the need to install a thick steel plate at the bottom of the elevator car in the existing instantaneous safety gear. Disadvantages of higher manufacturing costs

Method used

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  • Instantaneous type safety gear for elevator
  • Instantaneous type safety gear for elevator
  • Instantaneous type safety gear for elevator

Examples

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Embodiment Construction

[0015] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] see figure 1 , the instant embodiment elevator safety gear, it is installed on the bottom of the elevator car, it includes a clamp body 1, the clamp body 1 is provided with a channel 1-1 with a trapezoidal cross section, the trapezoidal channel is wide at the bottom and narrow at the top. The pliers channel 1-1 passes through the elevator guide rail 4 longitudinally, and the elevator guide rail 4 is located in the middle of the channel 1-1. Double roller sets 2 and wedges 3 that can move up and down along the corresponding slopes are respectively installed on both sides in the pliers channel. The surface of the side 3-1 of the wedge 3 facing the elevator guide rail 4 is corrugated. The other side 3-2 of the wedge 3 that is compatible with the pliers slope 1-2 forms a step 3-3, and correspondingly, a step 1-3 is also formed on the pliers slope ...

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Abstract

The invention discloses an instantaneous type safety gear for an elevator, which comprises a gear body which is provided with a channel with a trapezoidal section, wherein the channel is wide at the bottom and narrow at the top; double pin roller groups and a wedge block are mounted on two sides in the gear channel respectively; the double pin roller groups and the wedge block can move up and down along a corresponding gear body inclined surface; one side surface, corresponding to the gear body inclined surface, of the wedge block forms a step, and correspondingly, a step is formed on the inclined surface of the gear body; and when the safety gear is triggered to act until the action is completed, the step of the wedge block is contacted with the step on the gear body inclined surface. According to the instantaneous type safety gear, the matched steps are arranged on the wedge block and the corresponding gear body inclined surface to replace a steel plate in the prior art; and in comparison, the instantaneous type safety gear provided by the utility model has the advantages of larger braking force and simple structure, simplifies the elevator structure, and reduces the elevator load bearing and elevator manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of elevator safety device manufacture, and in particular relates to an elevator instantaneous safety gear. Background technique [0002] Early momentary elevator safety gear, such as the safety gear disclosed in Chinese Patent No. ZL97219405.3, when the actual safety gear is in action, the double roller set and the wedge will move upwards, and it is necessary to install a very small piece at the bottom of the elevator car. Thick steel plates are used to prevent the one-sided wedge from moving upwards beyond the limit and detaching from the tong body, otherwise the energy absorbed by the safety tongs will be greatly reduced, which will affect the safe operation of the elevator. The reality is that although the addition of steel plates can meet the needs of actual use, this has led to a substantial increase in the manufacturing cost of the elevator. In addition, adding steel plates also complicates the struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/22
Inventor 邹家春何新陈明星
Owner HANGZHOU HUNING ELEVATOR PARTS CO LTD
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