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Bidirectional safe pliers for elevator

A technology of safety gear and elevators, which is applied in elevators, transportation and packaging, etc. It can solve the problems of occupied space structure, complexity, and inability to realize two-way braking, so as to achieve the effect of improving comfort

Active Publication Date: 2016-12-21
浙江西子富沃德电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the asymmetric progressive safety gear can prevent the car from lateral displacement or guide rail deformation when the safety gear is working, it cannot achieve bidirectional braking. In actual use, multiple safety gears in different directions need to be installed, which not only takes up space but also structural complex

Method used

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  • Bidirectional safe pliers for elevator
  • Bidirectional safe pliers for elevator
  • Bidirectional safe pliers for elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1~2 As shown, the two-way safety gear includes a bracket 1, a flat clamp body 7, a wedge clamp body group, a double wedge 6 and a linkage frame 2, Figure 1~2 Shown in is the front of bracket 1. The rail groove 3 is vertically arranged on the front of the support 1 .

[0038] The double wedges 6 and the flat pliers 7 are installed on the bracket 1 and are respectively located on both sides of the guide rail groove 3 . Such as Figure 6 As shown, the upper and lower ends of the front of the bracket 1 are respectively provided with slideways 25, and the double wedges 6 and the flat pliers 7 are slidably inserted into the slideways 25 at both ends. A limit pin 24 is installed on the bracket 1 on the left side of the guide rail groove 3 to limit the sliding position of the flat pliers body 7 .

[0039]The upper and lower ends of the right side of the bracket 1 are respectively provided with elastic parts 11, the fixed end of the elastic part 11 is fixed ...

Embodiment 2

[0056] Such as Figure 7 , Figure 8 As shown, the difference between embodiment 2 and embodiment 1 is that the linkage frame 2 connected with the double wedge 6 and the flat pliers body 7 is a U-shaped leaf spring 2', and the U-shaped leaf spring 2' is close to the flat pliers body Disc spring 9 is not provided between an end of 7 and flat pliers body 7 . Since the U-shaped leaf spring 2' itself is an elastic reset member, when the double wedge 6 squeezes one end of the U-shaped leaf spring 2', the other end will simultaneously squeeze the flat pliers body 7 to generate a braking force to prevent the car from laterally moving. Displacement or rail deformation. Other structures of the two-way safety gear in Embodiment 2 are the same as those in Embodiment 1, so details are not repeated here.

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Abstract

The invention relates to bidirectional safe pliers for an elevator. The bidirectional safe pliers for the elevator comprise a bracket, a flat pliers body, a wedge pliers body group, a double-wedge block and a linkage frame, wherein the bracket is provided with a guide rail groove; the flat pliers body and the wedge pliers body group are arranged on the two sides of the guide rail groove of the bracket respectively; the double-wedge block is matched with the wedge pliers group; the linkage frame is connected with the flat pliers body and the double-wedge block; the wedge pliers body group comprises an upper wedge pliers body and a lower wedge pliers body which are symmetrical; the double-wedge block is correspondingly provided with two wedge surfaces which are matched with the upper wedge pliers body and the lower wedge pliers body respectively; the bidirectional safe pliers for the elevator also comprises a guide mechanism which is used for limiting the upper wedge pliers body and the lower wedge pliers body to sliding along the respective matched wedge surfaces; the upper wedge pliers body and the lower wedge pliers body are connected through a linkage piece; one of the wedge pliers bodies serves as a trigger mechanism of the bidirectional safe pliers; and a reset mechanism applied to the wedge pliers bodies is arranged on the bracket. The bidirectional safe pliers realize bidirectional braking and protect a guide rail maximally.

Description

technical field [0001] The invention relates to the field of safety gear for elevators, in particular to a two-way safety gear for elevators. Background technique [0002] Conventional safety gears currently on the market are installed on the elevator car or the counterweight, and are provided with guide rail grooves in the longitudinal direction, and wedge blocks are provided on one or both sides. When the elevator car is in normal running state, keep a certain distance between the wedge and the guide rail. [0003] When the upward or downward speed of the car reaches a certain upper limit speed, the speed limiter pulls the speed limiter rope, and the speed limiter rope drives the lifting mechanism of the safety gear, and the lifting mechanism pulls the movable wedge upward or downward to make the movable wedge move The gap between the wedge and the guide rail disappears, and friction is generated after the movable wedge contacts the guide rail to continue to drive the mov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/22
CPCB66B5/22
Inventor 陈桂兵刘培胡先高刘勤
Owner 浙江西子富沃德电机有限公司
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