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Emergency stopping device of elevator

A stop device, emergency technology, applied in the direction of transportation, packaging, elevators, etc., can solve the problems of complex devices, fluid pressure leakage, uneconomical, etc., and achieve the effect of mitigating impact

Inactive Publication Date: 2012-10-17
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the pressing force adjustment unit is not a structure that adjusts the elastic member but adjusts the force of the elastic member itself, the device is very complicated and uneconomical.
Moreover, it is very uneconomical to equip a deceleration detection device for detecting the deceleration of the lifting body, which is not needed in general elevators.
[0014] In addition, in other existing emergency stop devices for elevators, instead of elastic components, a pressure vessel encapsulating fluid is provided, and the pressing force is adjusted by adjusting the pressure in the pressure vessel and the viscosity of the fluid. Therefore, there is always fluid pressure acting on the pressure. Containers, so it is necessary to manage the leakage of fluid pressure, etc.

Method used

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  • Emergency stopping device of elevator
  • Emergency stopping device of elevator
  • Emergency stopping device of elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0042] Figure 1 to Figure 6 It is a figure explaining the elevator emergency stop device in Embodiment 1 for implementing this invention, figure 1 is a diagram showing an overall structural diagram of an elevator, figure 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.

[0043] 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 ...

Embodiment approach 2

[0074] 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

[0078] 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 8 Among 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 ar...

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Abstract

The invention provides an emergency stopping device of an elevator, which needs no complicated control but a simple structure to relieve the deceleration during braking without causing passengers to fell comfortable and damaging the lifting body and the counterweight. For achieving the aim, the emergency stopping device of the elevator comprises a lifting body, a wedge block and a pressing body, wherein the lifting body lifts along a guide rail and is provided with a car for carrying passengers and a frame body for supporting the car; the wedge block is arranged on the lifting body and moves upwards along the guide rail relative to the lifting body in the emergency state; the pressing body is used for pressing the wedge block on the guide rail by using an elastic component; and the emergency stopping device further comprises a pressing force adjusting unit; when the carrying capacity of the lifting body changing due to the entrance and the exist of the passengers is increased, the pressing force adjusting unit reduces the pressing force of the wedge block; and when the carrying capacity of the lifting body is decreased, the pressing force adjusting unit increases the pressing force of the wedge block.

Description

[0001] This application is a divisional application, the application number of the original application is 200480043217.5, the international application number is PCT / JP2004 / 018720, the application date is December 15, 2004, and the invention name is "elevator emergency stop device". technical field [0002] The invention relates to an elevator emergency stop device for braking a lifting body descending at an overspeed. Background technique [0003] 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 r...

Claims

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Application Information

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