CN205397768U

CN205397768U - Elevator tenesmus buffer

Info

Publication number: CN205397768U
Application number: CN201521060009.8U
Authority: CN
Inventors: 吴优良
Original assignee: CHONGQING WESTER ELEVATOR Co Ltd
Current assignee: CHONGQING WESTER ELEVATOR Co Ltd
Priority date: 2015-12-19
Filing date: 2015-12-19
Publication date: 2016-07-27
Anticipated expiration: 2025-12-19

Abstract

This patent specifically discloses elevator tenesmus buffer, car and buffer gear including the elevator, buffer gear is including lieing in the buffer board between the car and the elevator wall of a well, extension spring, friction disc and air bag, the lower extreme of buffer board and the lower extreme activity hinge joint of car, the fixed extension spring that is provided with between the upper end of car and the buffer board, air bag is fixed to be set up between buffer board and car, air bag includes the acceleration of gravity sensor, the control modul, and gasbag module, the acceleration of gravity sensor, control module and gasbag module electricity are connected. That the device can be independent of other safety arrangement and can slow down the falling speed of car when out of control, and the passenger who is in the car provides the biggest safety.

Description

Elevator tenesmus buffer unit

Technical field

This utility model relates to elevators field, is specifically related to a kind of elevator tenesmus buffer unit.

Background technology

Elevator is vertical transport instrument, and car is the pith of passenger loading, and therefore the safety of car is most important.In running process of elevator, car moves up and down along guide rail, and passenger stands at the bottom of at sedan-chair and moves with car.When lift car runs downwards, due to the disconnected rope of hoist ropes, car overload, safety tongs limiter of speed be failure to actuate, skidding between traction sheave and hoist ropes, misfunctioning of brake, brakeless moment and the reason such as limit switch is inoperative, car can be caused to pit whereabouts out of control.At this moment the buffer being contained in below car in pit can alleviate the impact between car and pit, but only by the buffering effect of buffer offer still it cannot be guaranteed that car and passenger are injury-free.Because making buffer directly and car effect, when car contacts with buffer, the falling speed of car has reached maximum, and now car and buffer directly act on and still can the member in car be damaged.For this, be badly in need of exploitation a kind of can independent of other safety guard, to slow down car out of control time the buffer unit of falling speed.

Utility model content

The purpose of this utility model is in that to solve deficiency of the prior art, it is provided that a kind of can independent of other safety guard, to slow down car out of control time the elevator tenesmus buffer unit of falling speed.

For reaching above-mentioned purpose, base case of the present utility model is: elevator tenesmus buffer unit, car and buffer gear including elevator, buffer gear includes the buffer board between car and hoistway wall, extension spring, friction plate and air bag, the lower end of buffer board and the lower end of car are movably hinged, it is fixedly installed extension spring between upper end and the buffer board of car, air bag is fixedly installed between buffer board and car, air bag includes Gravity accelerometer, control module, and air bag module, air bag module includes gas generator and air bag, Gravity accelerometer, control module and air bag module electrical connection.

Operation principle and the advantage of this programme are in that: when elevator is properly functioning, extension spring hold buffer board to prevent friction plate from contacting with hoistway wall.When car is out of control fall downwards rapidly in elevator time, Gravity accelerometer detects that the falling speed of car exceedes early warning value, then controlled gas generator by control module and open air bag, the air bag opened overcomes the resistance of extension spring and friction plate is pressed to hoistway wall simultaneously, due to the mutual rubbing action between friction plate and hoistway wall, the falling speed of car will slow down or even car stops tenesmus.

The buffer gear arranged on car effectively slow down the falling speed of car even can also allow car be stuck in elevator; the air bag adopted is also independent from other safety guard; so this device can independent of other safety guard and can slow down car out of control time falling speed, and provide maximum safety for the passenger in car.

Preferred version one: based on the preferred version of scheme, including two buffer gears, two buffer gears are symmetrically arranged at the left and right sides of car.Two change mechanism into and act on the frictional force that can improve between car and elevator further simultaneously, provide bigger guarantee for the passenger safety in car.

Preferred version two: the preferably preferred version of, buffer board is additionally provided with withstand the top of hoistway wall.The top speed that can reduce car tenesmus that arranges or even allow car stop tenesmus, top bigger has ensured the safety of passenger in car so arranging.

Preferred version three: the preferably preferred version of two, buffer board is additionally provided with catch on the barb of hoistway wall.Arrange barb can reduce car tenesmus speed or even allow car stop tenesmus, so arrange barb bigger ensured the safety of passenger in car.

Accompanying drawing explanation

Fig. 1 is the mounting structure schematic diagram of this utility model elevator tenesmus buffer unit embodiment.

Detailed description of the invention

Below by detailed description of the invention, this utility model is described in further detail:

Accompanying drawing labelling in Figure of description includes: hoistway wall 1, car 2, extension spring 3, friction plate 4, top 5, air bag module 6, gripper shoe 7, barb 8, Gravity accelerometer 9.

Embodiment is substantially as shown in Figure 1:

Elevator tenesmus buffer unit, including the buffer gear arranged on the sidewall of car 2, buffer gear includes the buffer board between car 2 and hoistway wall 1, extension spring 3, friction plate 4 and air bag, the lower end of the lower end of buffer board and car 2 is movably hinged, being fixedly installed extension spring 3 between upper end and the buffer board of car 2, friction plate 4 is between hoistway wall 1 and buffer board and is fixedly installed on buffer board.Air bag is fixedly installed between buffer board and car 2.The air bag module 6 that in the present embodiment, air bag includes Gravity accelerometer 9, controls module and constitutes together with being done with air bag etc. by gas generator, Gravity accelerometer 9, controls module and air bag module 6 electrically connects.Gravity accelerometer 9 is arranged on the car 2 of elevator, and Gravity accelerometer 9 and gas generator are concurrently accessed control module.As it is shown in figure 1, at ordinary times, extension spring 3 buffer board is held to prevent friction plate 4 from contacting with hoistway wall 1.When car 2 is out of control fall downwards rapidly in elevator time, Gravity accelerometer 9 detects that the falling speed of car 2 exceedes early warning value, then controlled gas generator by control module and open air bag, the air bag opened overcomes the resistance of extension spring 3 and friction plate 4 is pressed to hoistway wall 1 simultaneously, due to the mutual rubbing action between friction plate 4 and hoistway wall 1, the falling speed of car 2 will slow down or even car 2 stops tenesmus.

As it is shown in figure 1, in the present embodiment, the sidewall of car 2 is provided with two buffer gears, two buffer gears are symmetricly set on the left and right sides of car 2.The generation effect simultaneously of two such buffer gear will be safer.In order to play the effect of buffer board further, buffer board is additionally provided with withstand top the 5 of hoistway wall 1 and in order to catch on the barb 8 of hoistway wall 1.Top 5 and the barb 8 arranged can reduce the speed of car 2 tenesmus.

Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the premise without departing from this utility model structure, it is also possible to make some deformation and improvement; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim.

Claims

1. elevator tenesmus buffer unit, it is characterized in that, car and buffer gear including elevator, described buffer gear includes the buffer board between car and hoistway wall, extension spring, friction plate and air bag, the lower end of buffer board and the lower end of car are movably hinged, it is fixedly installed extension spring between upper end and the buffer board of car, air bag is fixedly installed between buffer board and car, air bag includes Gravity accelerometer, control module and air bag module, air bag module includes gas generator and air bag, Gravity accelerometer, control module and air bag module electrical connection.

2. elevator according to claim 1 tenesmus buffer unit, it is characterised in that described buffer gear is provided with two, and two buffer gears are symmetrically arranged at the left and right sides of car.

3. elevator according to claim 2 tenesmus buffer unit, it is characterised in that be additionally provided with on described buffer board to withstand the top of hoistway wall.

4. elevator according to claim 3 tenesmus buffer unit, it is characterised in that be additionally provided with to catch on the barb of hoistway wall on described buffer board.