CN109368437B

CN109368437B - Anti-falling system of elevator

Info

Publication number: CN109368437B
Application number: CN201811537537.6A
Authority: CN
Inventors: 罗建华; 闵文辉; 周秋冬; 周轩
Original assignee: Konda Elevator Co Ltd
Current assignee: Konda Elevator Co Ltd
Priority date: 2018-12-15
Filing date: 2018-12-15
Publication date: 2023-07-14
Anticipated expiration: 2038-12-15
Also published as: CN109368437A

Abstract

The invention discloses an anti-falling system of an elevator, which comprises a lift car, an induction device, an anti-falling mechanism and a wall body provided with the induction device and the anti-falling mechanism, wherein the induction device and the anti-falling mechanism are arranged in the wall body, a box door and an upper block are arranged on the lift car, and the upper block is arranged at two ends of the box door. The induction device is arranged on the opposite surface of the box door, and the anti-falling mechanism is arranged on two sides of the car. The car is also provided with a guide rail, the induction device comprises a pressing block, a cavity, a roller and a spring, the roller is arranged at the front end of the pressing block, the rear end of the pressing block is provided with a blocking part, the blocking part is arranged in the cavity, and the spring is arranged on the blocking part. The blocking part is provided with a first upright post and a second upright post, the first upright post is provided with a first emitter, the second upright post is provided with a second emitter, and the cavity is provided with a first receiver and a second receiver. The anti-falling system of the elevator is simple in structure and high in anti-falling strength, and the falling accident of the elevator is prevented.

Description

Anti-falling system of elevator

Technical Field

The invention relates to the field of elevators, in particular to an anti-falling system of an elevator.

Background

An elevator is a motor-powered vertical elevator equipped with a box-like car for use in multi-story buildings to take passengers or to carry cargo. The elevator can also generate a plurality of problems when in use, particularly the elevator can be easily and rapidly lowered when the elevator fails, and the elevator can directly fall from the high altitude when serious, so that unpredictable injury can be caused to elevator passengers in the elevator.

Disclosure of Invention

In order to solve the defects existing in the prior art, the invention aims to provide an anti-falling system of an elevator.

The utility model provides an anti-falling system of elevator, includes car, induction system, anti-falling mechanism and installs induction system and anti-falling mechanism's wall body, its characterized in that, be equipped with chamber door and last piece on the car, it sets up to go up the piece the both sides of car, induction system sets up on the wall body of chamber door opposite face, anti-falling mechanism sets up go up the lower extreme of piece, still be equipped with the guide rail on the car, including briquetting, cavity, gyro wheel and spring in the induction system, the gyro wheel is installed through the rotation axis the front end of briquetting, the briquetting is installed in the cavity, the spring is installed the rear end of briquetting, the spring sets up in the cavity, including cylinder and lower piece in the anti-falling mechanism, be equipped with the cylinder pole on the cylinder pole down, be equipped with cavity groove and cylinder groove on the wall body, the cavity is installed in the cavity groove, the cylinder is installed in the cylinder groove.

In the elevator fall protection system of the present invention, the upper and lower ends of the guide rail are recessed in the direction of the car, and the middle of the guide rail is parallel to the outer surface of the car.

In the anti-falling system of the elevator, the rear end of the pressing block is provided with the blocking part, the blocking part is arranged in the cavity, the spring is installed on the blocking part, the middle of the spring is provided with the positioning column, and the positioning column is installed on the blocking part.

In the anti-falling system of the elevator, the blocking part is provided with the first upright post and the second upright post, the first upright post is provided with the first emitter, the second upright post is provided with the second emitter, and the inner wall of the cavity is provided with the first receiver and the second receiver.

In the anti-falling system of the elevator, the guide rail is provided with the cambered surface protruding part and the concave part, the concave parts are arranged on two sides of the cambered surface protruding part, the roller is provided with the cambered surface concave part and the convex part, the cambered surface concave part is correspondingly arranged on the cambered surface protruding part, and the convex part is correspondingly arranged in the concave part.

In the anti-falling system of the elevator, the upper block is provided with the positioning groove, the lower block is provided with the positioning convex block, and the positioning convex block can be installed in the positioning groove in a matching way.

The beneficial effects of the invention are as follows: the anti-falling system of the elevator is simple in structure, the upper end and the lower end of the elevator opening of each layer are provided with the sensing device and the anti-falling mechanism, once the elevator falls down in an accident, the elevator is blocked in the first time, and the accident is prevented. The safety of passengers taking the elevator is guaranteed, and the safety performance is improved.

Drawings

Fig. 1 is a schematic view of the fall arrest system of the elevator of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a schematic view of a portion of the structure of FIG. 1;

FIG. 4 is a schematic view of a portion of the structure of FIG. 1;

FIG. 5 is another schematic view of FIG. 4;

FIG. 6 is a schematic view of a portion of the structure of FIG. 5;

FIG. 7 is a schematic view of a portion of the structure of FIG. 5;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

fig. 9 is a schematic view of a portion of the structure in fig. 7.

Detailed Description

The invention is further described below with reference to examples.

As shown in fig. 1 to 9, the anti-falling system of the elevator of the present invention comprises a car 10, a sensing device 11, an anti-falling mechanism 12, and a wall body for mounting the sensing device 11 and the anti-falling mechanism 12, wherein the car 10 is a main body part of the elevator, the sensing device 11 is used for sensing whether the car 10 has arrived at a designated place, and the sensing device 10 is used for making a first time judgment. The anti-falling mechanism 12 is used for blocking the car 10, the car 10 falls down when a story appears, the car 10 can be blocked through the anti-falling mechanism 12, the anti-falling mechanism 12 is used for receiving the designation sent by the sensing device 11, and then judgment is made. The anti-falling mechanism 12 and the induction device 11 are arranged on a wall 13, and the wall 13 is a well, and is a well for placing an elevator. The sensing device 11 and the anti-falling mechanism 12 are arranged at the elevator exit of each floor. Therefore, the elevator can be prevented from falling directly, each floor can correspondingly block the elevator, and the accident rate of the elevator is reduced to the minimum.

The car 10 is provided with a door 14 and upper blocks 15, and the upper blocks 15 are provided on both sides of the car 10, on both sides of the door 14. Upper block 14 is adapted to ride on fall arrest mechanism 12 so that car 10 does not fall directly.

The induction device 11 is arranged on a wall 13 opposite to the door 14, the car 10 is also provided with a guide rail 16, and the guide rail 16 is directly arranged at the rear end of the car 10. The guide rail 16 is used for positioning the induction device 11, the upper end and the lower end of the guide rail 16 sink inwards towards the direction of the car 10, the middle of the guide rail 16 is parallel to the outer surface of the car 10, the upper end of the guide rail and the middle of the guide rail are in arc transition, and the lower end of the guide rail and the middle of the guide rail are in arc transition. The front end of the induction means 11 is in contact with the guide rail 16 when the elevator is in operation.

The anti-falling mechanism 12 is arranged at the lower end of the upper block 15, the anti-falling mechanism 12 is arranged on each layer, the anti-falling mechanism 12 comprises an air cylinder 17 and a lower block 18, an air cylinder rod 171 is arranged on the air cylinder 17, the lower block 18 is arranged on the air cylinder rod 171, a cavity groove 19 and an air cylinder groove 20 are arranged on the wall 13, the cavity 22 is arranged in the cavity groove 19, and the air cylinder 17 is arranged in the air cylinder groove 20. The upper block 15 is provided with a positioning groove 151, the lower block 18 is provided with a positioning lug 181, and the positioning lug 181 can be installed in the positioning groove 151 in a matching way. When the car 10 falls, the upper blocks 15 on both sides of the car 10 will fall on the lower blocks 18, and the positioning grooves 151 on the upper blocks 15 will directly correspond to the positioning protrusions 181 on the lower blocks 18, so that the dislocation of the car 10 can be prevented.

The induction device 11 comprises a pressing block 21, a cavity 22, a roller 23 and a spring 24, wherein the roller 23 is arranged at the front end of the pressing block 21 through a rotating shaft 25, the roller 23 can rotate on the pressing block 21 through the rotating shaft 25, and the roller 23 directly falls on the guide rail 16 when the elevator runs to the front end of the induction device 11. The guide rail 16 is provided with an arc surface convex part 161 and concave parts 162, the concave parts 162 are arranged on two sides of the arc surface convex part 161, the roller 23 is provided with an arc surface concave part 231 and a convex part 232, the arc surface concave part 231 is correspondingly arranged on the arc surface convex part 161, and the convex part 232 is correspondingly arranged in the concave part 162. In this way, the sensing device 11 can accurately fall on the guide rail 16 without being deviated through the cooperation of the guide rail 16 and the roller 23. The press block 21 is mounted in the cavity 22, and the press block 21 is movable in the cavity 22. The rear end of the pressing block 21 is provided with a blocking part 211, and the blocking part 211 is arranged in the cavity 22, so that the pressing block 21 cannot be separated from the cavity 22 when moving in the cavity 22 through the blocking part 211. The spring 24 is mounted on the blocking portion 211, a positioning column 26 is arranged in the middle of the spring 24, and the positioning column 26 is mounted on the blocking portion 211. And a spring 24 is installed at the rear end of the pressing block 21, the spring 24 being disposed in the cavity 22.

The blocking portion 211 is provided with a first pillar 27 and a second pillar 28, the first pillar 27 is provided with a first emitter 271, the second pillar 28 is provided with a second emitter 281, and the inner wall of the cavity 22 is provided with a first receiver 29 and a second receiver 30. The first receiver 29 is for receiving the signal transmitted by the first transmitter 271 and the second receiver 30 is for receiving the signal transmitted by the second transmitter 281. When the car 10 ascends, after the guide rail 16 contacts the roller 23, the roller 23 rolls on the guide rail 16, and when the roller 23 rolls to the middle of the guide rail 16, the spring 24 at the rear end of the pressing block 21 is compressed, the first emitter 27 corresponds to the first receiver 29, the lower block 18 in the falling prevention mechanism 12 at the upper end of the car 10 is in a contracted state, the falling prevention mechanism 12 at the lower end of the car 10 pushes out the lower block 18, and the lower block 18 corresponds to the lower end of the upper block 15 so as to prevent the falling of the car 10. When the car 10 descends, the guide rail 16 contacts the roller 23, the pressing block 21 compresses the spring 24, the second emitter 281 corresponds to the first emitter 271, then the anti-falling mechanism 12 at the upper end of the car 10 is in a contracted state, the anti-falling mechanisms 12 at the lower end of the car 10 are opened one by one, each time a layer is reached, the guide rail 16 pushes the pressing block 21, then the anti-falling mechanism 12 at the lower end of the car 10 is opened, and therefore the anti-falling mechanism 12 is ensured not to influence the descending of the elevator, and the next anti-falling mechanism 12 can block the car 10 when the elevator fails.

The anti-falling system of the elevator can ensure the safety performance of the elevator through the combination of the sensing device 11 and the anti-falling mechanism 12, so that the elevator can not directly fall down, but can be ensured at each layer, and accidents are prevented.

In summary, the foregoing description is only of the preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the invention.

Claims

1. The utility model provides an anti-falling system of elevator, includes car, induction system, anti-falling mechanism and installation induction system and anti-falling mechanism's wall body, its characterized in that, be equipped with chamber door and last piece on the car, it sets up to go up the piece the both sides of car, induction system sets up the chamber door is opposite on the wall body, anti-falling mechanism sets up go up the lower extreme of piece, still be equipped with the guide rail on the car, the upper end and the lower extreme of guide rail are inwards in the direction of car sink, the centre of guide rail with the external surface of car is parallel, including briquetting, cavity, gyro wheel and spring in the induction system, the gyro wheel is installed through the rotation axis the front end of briquetting, the briquetting is installed in the cavity, the spring is installed the rear end of briquetting, the spring sets up in the cavity, the rear end of briquetting is equipped with the blocking part, the spring is installed on the blocking part, the centre of spring is equipped with the reference column, the upper end and lower end of guide rail is towards the direction of car is sunk, the centre of guide rail with the location post, the location post is equipped with the second cylinder and is equipped with the air cylinder, the second cylinder is equipped with the air cylinder and the receiver in the second cylinder groove, the air cylinder is equipped with the first cylinder, the air cylinder is equipped with the air cylinder and the receiver.

2. The anti-falling system of an elevator according to claim 1, wherein the guide rail is provided with an arc surface protruding portion and a concave portion, the concave portion is arranged on two sides of the arc surface protruding portion, the roller is provided with an arc surface concave portion and a convex portion, the arc surface concave portion is correspondingly placed on the arc surface protruding portion, and the convex portion is correspondingly placed in the concave portion.

3. The fall protection system of an elevator according to claim 1, wherein the upper block is provided with a positioning groove, the lower block is provided with a positioning lug, and the positioning lug can be installed in the positioning groove in a matching manner.