CN210313016U

CN210313016U - Elevator falling prevention device

Info

Publication number: CN210313016U
Application number: CN201921372904.1U
Authority: CN
Inventors: 仲大林
Original assignee: Suzhou Youli Elevator Technology Co ltd
Current assignee: Suzhou Youli Elevator Technology Co ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-04-14
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses an elevator anti-falling device relates to elevator safety technical field, including elevator car, elevator car's back fixedly connected with connecting plate, the middle part of connecting plate is equipped with the slide rail, one side fixedly connected with pulley of connecting plate, pulley and slide rail swing joint, elevator car's top fixedly connected with anti-falling device. The utility model discloses a hydraulic press, the oil pressure groove, the voussoir, cooperation setting between slider and the braking piece, can carry out emergency braking to the elevator, it relies on the pulling force that the stay cord produced to brake the elevator because the not enough speed that the elevator descends of the pulling force of stay cord leads to the cracked problem of stay cord to have solved the elevator and taking place to descend with higher speed after for, through the buffer board, flexible groove, the erection column, the cooperation setting between spring groove and the first spring, can cushion, the impulsive force that the gravitational acceleration that has solved the elevator and descend to produce after the braking of elevator anti-falling device leads to the fact personnel injured's problem with higher speed.

Description

Elevator falling prevention device

Technical Field

The utility model relates to an elevator safety technical field, in particular to elevator anti-falling device.

Background

The elevator is widely used in high-rise buildings, the safety performance of the elevator is the most important of the design of the elevator, people pay attention to the elevator, and the elevator falling prevention device is a device for protecting the elevator from falling when the elevator is in an accident.

At present, current elevator safety hook makes at the bottom installation safety hook of elevator, causes the slope of elevator easily for causing danger, and current elevator safety hook is mostly through safety tongs centre gripping guide rail to realize elevator car's braking, prevent that elevator car from falling, the pulling force that utilizes the stay cord comes restriction elevator decline security performance poor, and current elevator safety hook does not have buffer function and arouses easily that the inside human of elevator is business.

Therefore, it is necessary to provide a fall-preventing device for an elevator to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elevator anti-falling device to solve the current elevator anti-falling device security performance poor and the problem that does not have buffer that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an elevator anti-falling device comprises an elevator car, wherein the back of the elevator car is fixedly connected with a connecting plate, the middle part of the connecting plate is provided with a slide rail, one side of the connecting plate is fixedly connected with a pulley, the pulley is movably connected with the slide rail, the top end of the elevator car is fixedly connected with an anti-falling device, one end of the anti-falling device is sleeved on the outer side of the slide rail, the inside of the elevator car is fixedly connected with a guardrail, the inside of the bottom end of the elevator car is provided with a telescopic groove, the inside of the telescopic groove is movably connected with a buffer plate, the buffer plate is matched with the telescopic groove, the bottom of the buffer plate is fixedly connected with a fixed column, the inside of the fixed column is provided with a buffer groove, the inside of the telescopic groove is fixedly connected with a mounting column, the inside of the, one end of the first spring is fixedly connected with the buffer slot;

the anti-falling device is characterized in that a mounting groove and an oil pressure groove are formed in the anti-falling device, a hydraulic press is fixedly connected to the inside of the mounting groove, a push rod is fixedly connected to one end of the hydraulic press, the push rod is movably connected with the oil pressure groove, an oil pressure pipe is fixedly connected to one side of the oil pressure groove, a movable groove is formed in the inside of one end of the anti-falling device, a sliding block is movably connected to the inside of the movable groove, one end of the oil pressure pipe is fixedly connected with the movable groove, a wedge block is fixedly connected to one side of the sliding block, a braking piece is fixedly connected to one end of the wedge.

Optionally, the number of the movable grooves is two, the two movable grooves are symmetrically arranged, and the movable grooves are matched with the sliding block.

Optionally, the connecting plates are multiple, the connecting plates are symmetrically arranged, the pulleys are multiple, the pulleys are symmetrically arranged, a groove is formed in the middle of each pulley, and the groove is matched with the sliding rail.

Optionally, there are two fixing columns, the two fixing columns are symmetrically arranged, and the fixing columns correspond to the mounting columns.

Optionally, the number of the mounting columns is two, the two mounting columns are symmetrically arranged, and the mounting columns are matched with the buffer grooves.

Optionally, there are two oil pressure pipes, two oil pressure pipes are symmetrically arranged, and the oil pressure pipes are L-shaped.

Optionally, the brake piece is arc-shaped, and the brake piece is matched with the slide rail.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a hydraulic press, oil pressure groove, voussoir, the cooperation setting between slider and the braking piece can carry out emergency braking to the elevator, has solved the elevator and has come the braking elevator because the not enough speed that the elevator descends of pulling force of stay cord leads to the cracked problem of stay cord for later acceleration decline to rely on the pulling force that the stay cord produced taking place.

2. The utility model discloses a cooperation setting between buffer board, flexible groove, erection column, spring groove and the first spring can cushion, has solved the impulsive force that the acceleration of gravity that the elevator produced descends with higher speed produced behind the braking of elevator anti-falling device and has caused personnel injured's problem.

Drawings

FIG. 1 is a rear view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the structure of the present invention;

FIG. 3 is a schematic top view of the structure of the present invention;

fig. 4 is an enlarged schematic view of the structure at a in fig. 2 according to the present invention.

In the figure: 1. an elevator car; 2. a guardrail; 3. the anti-falling device; 4. a buffer plate; 5. a telescopic groove; 6. a slide rail; 7. a connecting plate; 8. a pulley; 9. a buffer tank; 10. fixing a column; 11. mounting a column; 12. a spring slot; 13. a first spring; 14. mounting grooves; 15. a hydraulic press; 16. an oil pressure tank; 17. an oil pressure pipe; 18. a movable groove; 19. a wedge block; 20. a slider; 21. a second spring; 22. a brake pad; 23. a push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The utility model provides an anti-falling device for an elevator, which is shown in figures 1, 2 and 3 and comprises an elevator car 1, wherein the back of the elevator car 1 is fixedly connected with a connecting plate 7, the connecting plate 7 is provided with a plurality of connecting plates 7, the connecting plates 7 are symmetrically arranged, a plurality of pulleys 8 are symmetrically arranged, the middle part of each pulley 8 is provided with a groove, the grooves are matched with a slide rail 6, the middle part of each connecting plate 7 is provided with a slide rail 6, one side of each connecting plate 7 is fixedly connected with the corresponding pulley 8, the corresponding pulley 8 is movably connected with the corresponding slide rail 6, the top end of the elevator car 1 is fixedly connected with an anti-falling device 3, one end of the anti-falling device 3 is sleeved outside the slide rail 6, the interior of the elevator car 1 is fixedly connected with a guardrail 2, the interior of the bottom end of the elevator car 1 is provided with a telescopic groove 5, the bottom of the buffer plate 4 is fixedly connected with two fixed columns 10, the two fixed columns 10 are symmetrically arranged, the fixed columns 10 correspond to the mounting columns 11, the buffer grooves 9 are formed in the fixed columns 10, the mounting columns 11 are fixedly connected to the inner portion of the telescopic groove 5, the two mounting columns 11 are symmetrically arranged, the mounting columns 11 are matched with the buffer grooves 9, the spring grooves 12 are formed in the mounting columns 11, the first springs 13 are fixedly connected to the inner portions of the spring grooves 12, one ends of the first springs 13 are fixedly connected with the buffer grooves 9, buffering can be achieved through the matching arrangement of the buffer plate 4, the telescopic groove 5, the mounting columns 11, the spring grooves 12 and the first springs 13, and the problem that personnel are injured due to impulsive force generated by gravity acceleration generated by accelerated descending of an elevator after the elevator falling prevention device 3 is braked is solved;

as shown in fig. 4, a mounting groove 14 and an oil pressure groove 16 are formed inside the anti-falling device 3, a hydraulic press 15 is fixedly connected inside the mounting groove 14, one end of the hydraulic press 15 is fixedly connected with a push rod 23, the push rod 23 is movably connected with the oil pressure groove 16, one side of the oil pressure groove 16 is fixedly connected with two oil pressure pipes 17, the two oil pressure pipes 17 are symmetrically arranged, the oil pressure pipes 17 are L-shaped, a movable groove 18 is formed inside one end of the anti-falling device 3, the movable grooves 18 are two, the two movable grooves 18 are symmetrically arranged, the movable grooves 18 are matched with a sliding block 20, a sliding block 20 is movably connected inside the movable grooves 18, the elevator can be emergently braked by the cooperation of the hydraulic press 15, the oil pressure groove 16, a wedge block 19, the sliding block 20 and a brake block 22, and the problem that the elevator is broken due to the insufficient elevator descending speed caused by the pulling force generated by the pulling force, one end of the oil pressure pipe 17 is fixedly connected with the movable groove 18, one side of the sliding block 20 is fixedly connected with a wedge block 19, one end of the wedge block 19 is fixedly connected with a brake piece 22, the brake piece 22 is arc-shaped, the brake piece 22 is matched with the sliding rail 6, and one side of the sliding block 20 is fixedly connected with a second spring 21.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

This practical theory of operation: when the elevator is used, the elevator ascends, when an accident occurs to the elevator, the elevator descends in an accelerated manner, the groove of the pulley 8 is attached to the sliding rail 6 to rotate and move downwards, the anti-falling device 3 is started, the hydraulic press 15 pushes the push rod 23 to extend out, the push rod 23 pushes hydraulic oil in the hydraulic groove 16, the hydraulic oil enters the movable groove 18 through the hydraulic pipe 17, the hydraulic oil pushes the sliding block 20 to move towards the outside of the movable groove 18, the sliding block 20 drives the wedge block 19 to move, the wedge block 19 drives the brake block 22 to move, the brake block 22 extends out of the fastening sliding rail, meanwhile, the sliding block 20 extends out to extrude the second spring 21, the second spring 21 contracts to generate elastic force, after braking, gravity drives the buffer plate 4 to move downwards, the buffer plate 4 moves to drive the fixed column 10 to move, the fixed column 10 moves to extrude the first spring 13, the first spring 13 contracts to generate elastic force, the elastic force of the first spring 13 pushes the fixed column 10 to move upwards, and the fixed column 10 drives the buffer plate 4 to move upwards to buffer.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. An elevator anti-falling device comprises an elevator car (1), and is characterized in that: the back of the elevator car (1) is fixedly connected with a connecting plate (7), the middle part of the connecting plate (7) is provided with a sliding rail (6), one side of the connecting plate (7) is fixedly connected with a pulley (8), the pulley (8) is movably connected with the sliding rail (6), the top end of the elevator car (1) is fixedly connected with an anti-falling device (3), one end of the anti-falling device (3) is sleeved on the outer side of the sliding rail (6), the inside of the elevator car (1) is fixedly connected with a guardrail (2), a telescopic groove (5) is formed in the bottom end of the elevator car (1), a buffer plate (4) is movably connected in the telescopic groove (5), the buffer plate (4) is matched with the telescopic groove (5), the bottom of the buffer plate (4) is fixedly connected with a fixed column (10), and a buffer groove (9) is formed in the fixed column (10), an installation column (11) is fixedly connected to the inside of the telescopic groove (5), a spring groove (12) is formed in the installation column (11), a first spring (13) is fixedly connected to the inside of the spring groove (12), and one end of the first spring (13) is fixedly connected with the buffer groove (9);

the anti-falling device is characterized in that a mounting groove (14) and an oil pressure groove (16) are formed in the anti-falling device (3), a hydraulic press (15) is fixedly connected to the inside of the mounting groove (14), a push rod (23) is fixedly connected to one end of the hydraulic press (15), the push rod (23) is movably connected with the oil pressure groove (16), an oil pressure pipe (17) is fixedly connected to one side of the oil pressure groove (16), a movable groove (18) is formed in the inside of one end of the anti-falling device (3), a sliding block (20) is movably connected to the inside of the movable groove (18), one end of the oil pressure pipe (17) is fixedly connected with the movable groove (18), a wedge block (19) is fixedly connected to one side of the sliding block (20), a braking block (22) is fixedly connected to one end of the wedge block (19), and a second spring (21.

2. An elevator fall arrest device according to claim 1, characterised in that:

the number of the movable grooves (18) is two, the two movable grooves (18) are symmetrically arranged, and the movable grooves (18) are matched with the sliding block (20).

3. An elevator fall arrest device according to claim 1, characterised in that:

the connecting plates (7) are arranged in a plurality of symmetrical mode, the connecting plates (7) are arranged in a symmetrical mode, the pulleys (8) are arranged in a plurality of symmetrical mode, the pulleys (8) are arranged in a symmetrical mode, the middle of each pulley (8) is provided with a groove, and the grooves are matched with the sliding rails (6).

4. An elevator fall arrest device according to claim 1, characterised in that:

the number of the fixing columns (10) is two, the two fixing columns (10) are symmetrically arranged, and the fixing columns (10) correspond to the mounting columns (11).

5. An elevator fall arrest device according to claim 1, characterised in that:

the mounting columns (11) are two, the two mounting columns (11) are symmetrically arranged, and the mounting columns (11) are matched with the buffer tank (9).

6. An elevator fall arrest device according to claim 1, characterised in that:

the number of the oil pressure pipes (17) is two, the two oil pressure pipes (17) are symmetrically arranged, and the oil pressure pipes (17) are L-shaped.

7. An elevator fall arrest device according to claim 1, characterised in that:

the brake block (22) is arc-shaped, and the brake block (22) is matched with the slide rail (6).