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Elevator emergency stop device

A stop device, emergency technology, applied in the direction of transportation and packaging, lifts, etc.

Inactive Publication Date: 2011-04-20
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In addition, in other existing elevator emergency stop devices, instead of elastic components, a pressure vessel encapsulating a fluid is provided, and by adjusting the pressure in the pressure vessel and the fluid Viscosity is used to adjust the pressing force. Therefore, there is always fluid pressure acting on the pressure vessel, so it is necessary to manage the leakage of fluid pressure, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0041] Figure 1 to Figure 6 It is a figure explaining the elevator emergency stop device in Embodiment 1 for implementing this invention, figure 1 It is a figure which shows the whole structure diagram of an elevator, Fig. 2, image 3 It is a figure showing the main part of the door of the car, Figure 4 is a diagram showing the main parts of the elevator emergency stop device, Figure 5 , Figure 6 It is a diagram explaining the operation of the elevator emergency stop device.

[0042] exist figure 1 Among them, the lifting body 1 includes: a car 2 for carrying passengers; and a frame body 3 for supporting the car 2 . In addition, a car chassis 3a is provided at the bottom of the frame body 3. In order to prevent the vibration from the frame body 3 from being transmitted to the car 2 during lifting, a rubber rubber rubber is installed between the car chassis 3a and the car 2. Elastomer4. In addition, a weighing device 5 for measuring the mass of passengers entering a...

Embodiment approach 2

[0073] Figure 7 It is a figure which shows the elevator emergency stop apparatus in Embodiment 2 for carrying out this invention. Compared with Embodiment 1, in this embodiment, the sprag position adjustment means 56 which consists of the stopper 56a and the drive body 56b using a rack and pinion mechanism is changed. exist Figure 7 Among them, the wedge position adjustment unit 57 of the emergency stop device 12a of this embodiment is provided with a stopper 57a that can slide up and down along the frame member 51 and abuts against the upper end of the wedge 55. and a driver 57b that drives the stopper 57a. The stopper 57a is formed in a rod shape and is threaded. Moreover, in the wedge position adjustment unit 57, there are also provided: a nut 58 screwed on the stopper 57a; a belt 59 wound around the nut 58; and a pulley 60 rotated by the driver 57b. , and the belt 59 is wound around the pulley 60 . In addition, the constituent elements having the same reference nume...

Embodiment approach 3

[0077] Figure 8 , Figure 9 , Figure 10 An elevator emergency stop device in Embodiment 3 for carrying out the present invention is shown. Figure 8 It is a figure which shows the main part of the elevator emergency stop apparatus 12b of this embodiment. exist Figure 8Among them, with respect to Embodiment 1, this embodiment is provided with: a locking body 70, its locking stopper 56a; The numbers in the mark indicate the corresponding part. The locking body 70 is formed in a substantially L-shape, one end is pivotally attached to the rotation shaft 70a, and the other end has a terminal portion 70b formed to mesh with the teeth of the driving body 56b. The drive body 56b is locked by the meshing of the terminal portion 70b with the teeth of the drive body 56b, whereby the stopper 56a is locked. Furthermore, the locking body 70 has a restoring unit that restores the terminal portion 70b in a direction away from the driving body 56b, that is, in the direction of the arr...

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PUM

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Abstract

An emergency stop device for an elevator, moderating deceleration in braking operation without complex control and with a simple construction, thereby not causing discomfort to passengers and damage to an elevator body and a counterweight. The emergency stop device for an elevator has an elevator body traveling up and down along a guide rail and having an elevator car in which passengers are received and a frame body supporting the elevator car, a wedge piece moving upward, relative to the elevator body, along the guide rail in emergency, and a pressing body for pressing the wedge piece to the guide rail by using an elastic member. The emergency stop device also has a pressing force regulation means that reduces pressing force to the wedge piece when elevator body loaded mass, varied by the getting on and off of passengers, is greater, and increases the pressing force to the wedge piece when the elevator body loaded mass is less.

Description

technical field [0001] The invention relates to an elevator emergency stop device for braking a lifting body descending at an overspeed. Background technique [0002] The existing elevator emergency stop device includes: a wedge, which is arranged on a lifting body suspended by a main rope and lifted along a guide rail, and moves upward relative to the lifting body along the guide rail; The wedge is pressed on the guide rail; and the frame part, which accommodates these structural parts, the pressing body is formed with an inclined surface facing the inclined surface of the wedge and parallel to the inclined surface of the wedge, and the inclined surface of the wedge and the pressing Rollers rolling along the inclined surfaces are arranged between the inclined surfaces of the body. In addition, in an emergency, that is, when the descending speed of the lifting body exceeds the rated speed and reaches the preset overspeed due to the failure of the control equipment or the br...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/22
CPCB66B5/22B66B5/04B66B5/18
Inventor 冈田峰夫
Owner MITSUBISHI ELECTRIC CORP
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