CN216072602U

CN216072602U - Bidirectional falling-proof device for elevator

Info

Publication number: CN216072602U
Application number: CN202122749868.XU
Authority: CN
Inventors: 田纪云; 王建立
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-03-18
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a bidirectional anti-falling device for an elevator, which comprises a car arranged in an elevator shaft, wherein a plurality of brake blocks are arranged on the wall of the elevator shaft; the utility model discloses a car, including car, top cap, double-shaft motor, threaded rod, line on the threaded rod, the top cap has set firmly on the top surface of car, install double-shaft motor in the top cap, all fixedly connected with threaded rod, two on two power output shaft of double-shaft motor the line on the threaded rod is reverse setting, two all threaded connection has a screw thread section of thick bamboo on the threaded rod, fixed cover is equipped with the fixed plate on the screw thread section of thick bamboo, the below of fixed plate is provided with buffer gear. According to the elevator car anti-falling device, the brake block, the top cover, the double-shaft motor, the threaded rod, the threaded cylinder, the fixing plate and the connecting plate are arranged, when the car falls, the double-shaft motor is started, two power output shafts of the double-shaft motor drive the two threaded rods to rotate, the threaded cylinder and the fixing plate extend out of the top cover, the connecting plate extending out of the top cover can be lapped on the brake block, and the car cannot move downwards continuously.

Description

Bidirectional falling-proof device for elevator

Technical Field

The utility model relates to the field of elevator anti-falling equipment, in particular to an elevator bidirectional anti-falling device.

Background

In recent years, with the advancement of urbanization and the improvement of living standard of residents, elevators become indispensable vertical transportation means in production and life of people, and in order to ensure the operation safety, the general vertical elevators are provided with anti-falling devices which are mainly realized by devices such as a speed limiter, a safety gear, a buffer at the bottom of a hoistway and the like. Once the elevator is over-speed and descends, the speed limiter firstly stops the elevator driving main machine, if the main machine is still not stopped, the speed limiter lifts the safety tongs to clamp the guide rail of the locking device, the car is forced to be stopped on the guide rail of the locking device, and in addition, if the car directly impacts the buffer within a certain speed, the car is also stopped.

However, when any link of the system is in error or components are out of order, the whole anti-falling system can be broken down, when the elevator car falls to the ground at a very high speed, the buffer can reduce the impact force of the elevator striking the bottom of the shaft when the elevator falls, but the effect is limited, and the injury and death of passengers in the elevator can still be caused. Although the existing vertical elevator is provided with the two anti-falling protection devices, the occurrence of elevator falling accidents cannot be completely avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bidirectional anti-falling device of an elevator, which solves at least one technical problem.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a bidirectional anti-falling device of an elevator comprises a car arranged in an elevator shaft, wherein a plurality of brake blocks are arranged on the wall of the elevator shaft; the top cover is fixedly arranged on the top surface of the lift car and is of a cavity structure, a double-shaft motor is arranged in the top cover, threaded rods are fixedly connected to two power output shafts of the double-shaft motor, lines on the two threaded rods are arranged in a reverse direction, threaded cylinders are in threaded connection to the two threaded rods, fixed plates are fixedly sleeved on the two threaded cylinders, and buffer mechanisms are arranged below the two fixed plates; install in the car and be used for controlling the shift knob that the biax motor stopped.

Preferably, buffer gear includes the connecting plate, the connecting plate is located the fixed plate under, a plurality of telescopic links of fixedly connected with are a plurality of on the top surface of fixed plate the extension end of telescopic link all with fixed plate fixed connection, the cover is equipped with the spring on the telescopic link, the both ends of spring respectively with fixed plate, connecting plate fixed connection.

Preferably, a battery for supplying power to the double-shaft motor is installed in the top cover.

Preferably, the outer surface of the fixing plate is in contact with the inner wall of the cavity of the top cover, and the fixing plate cannot rotate in the cavity of the top cover.

Preferably, the top surface of top cap is equipped with solid fixed ring, gu be connected with wire rope on the fixed ring.

Preferably, a plurality of the brake blocks are distributed at equal intervals along the height direction of the elevator shaft wall; the fixed plate is made of steel.

The utility model has the beneficial effects that:

1. according to the elevator car anti-falling device, the brake block, the top cover, the double-shaft motor, the threaded rod, the threaded cylinder, the fixing plate and the connecting plate are arranged, when the car falls, the double-shaft motor is started, two power output shafts of the double-shaft motor drive the two threaded rods to rotate, the threaded cylinder and the fixing plate extend out of the top cover, the connecting plate extending out of the top cover can be lapped on the brake block, and the car cannot move downwards continuously.

2. According to the utility model, the spring and the telescopic rod are arranged, when the brake block supports the connecting plate, the spring and the telescopic rod can be compressed, and the resilience force of the compressed spring can provide certain buffering for the fixing plate, so that certain buffering and shock absorption are provided for the top cover and the lift car, and the shock on the lift car is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;

FIG. 3 is a side view of the fixing plate and the connecting plate of the present invention;

FIG. 4 is a schematic view of the fixing plate of the present invention extending out of the top cover;

reference numerals: 1. an elevator shaft; 2. a brake pad; 3. a car; 4. a top cover; 5. a double-shaft motor; 6. a battery; 7. a switch button; 8. a threaded rod; 9. a threaded barrel; 10. a fixing plate; 11. a connecting plate; 12. a telescopic rod; 13. a spring; 14. a fixing ring; 15. a steel cord.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood, the utility model is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the utility model, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

Examples

As shown in fig. 1-4, the elevator bidirectional anti-falling device comprises a car 3 arranged in an elevator shaft 1, wherein a plurality of brake blocks 2 are arranged on the wall of the elevator shaft 1; a top cover 4 is fixedly arranged on the top surface of the lift car 3, the top cover 4 is of a cavity structure, a double-shaft motor 5 is arranged in the top cover 4, threaded rods 8 are fixedly connected to two power output shafts of the double-shaft motor 5, lines on the two threaded rods 8 are arranged in a reverse direction, threaded cylinders 9 are in threaded connection with the two threaded rods 8, fixed plates 10 are fixedly sleeved on the two threaded cylinders 9, and buffer mechanisms are arranged below the two fixed plates 10; a switch button 7 for controlling the start and stop of the double-shaft motor 5 is arranged in the car 3.

In this embodiment, specifically, the buffer mechanism includes a connecting plate 11, the connecting plate 11 is located right below the fixing plate 10, a plurality of telescopic rods 12 are fixedly connected to the top surface of the fixing plate 10, the extending ends of the plurality of telescopic rods 12 are all fixedly connected to the fixing plate 10, springs 13 are sleeved on the telescopic rods 12, and two ends of each spring 13 are respectively fixedly connected to the fixing plate 10 and the connecting plate 11; through setting up telescopic link 12, spring 13, when fixed plate 10 stretches out outside top cap 4, also can take connecting plate 11 to stretch out outside top cap 4, when car 3 falls downwards, connecting plate 11 that is located outside top cap 4 can contact with brake block 2, make brake block 2 hold connecting plate 11, and then make car 3 unable continuation downstream, and when brake block 2 held connecting plate 11, spring 13 and telescopic link 12 can be compressed, the resilience force that is compressed spring 13 can provide certain buffering for fixed plate 10, thereby for top cap 4, car 3 provides certain buffering, the shock attenuation, thereby reduce the vibrations that car 3 received.

In this embodiment, specifically, a battery 6 for supplying power to the dual-shaft motor 5 is installed in the top cover 4.

In this embodiment, specifically, the outer surface of the fixing plate 10 contacts the inner wall of the cavity of the top cover 4, and the fixing plate 10 cannot rotate in the cavity of the top cover 4; when the double-shaft motor 5 starts, the threaded rod 8 can be driven to rotate, and the fixing plate 10 cannot rotate in the cavity of the top cover 4, so that when the threaded rod 8 rotates, the threaded cylinder 9 cannot rotate along with the threaded rod 8, and only horizontal movement can be achieved.

In this embodiment, specifically, a fixing ring 14 is installed on the top surface of the top cover 4, and a steel wire rope 15 is connected to the fixing ring 14.

In this embodiment, specifically, the plurality of brake blocks 2 are distributed at equal intervals along the height direction of the shaft wall of the elevator shaft 1; the fixing plate 10 is made of steel.

The working principle is as follows: when the elevator car 3 falls in a specific use process, the switch button 7 is pressed to start the double-shaft motor 5, so that two power output shafts of the double-shaft motor 5 drive the two threaded rods 8 to rotate, the fixing plates 10 cannot rotate in the cavity of the top cover 4, when the threaded rods 8 rotate, the threaded cylinders 9 can only horizontally move, and the grains on the two threaded rods 8 are reversely arranged, so that the two threaded cylinders 9 can simultaneously drive the two fixing plates 10 to move in opposite directions, the two fixing plates 10 and the two connecting plates 11 extend out of the top cover 4, the connecting plates 11 extending out of the top cover 4 can be in contact with the brake block 2, the brake block 2 supports the connecting plates 11, and the elevator car 3 cannot continuously move downwards;

and when the connecting plate 11 is held in the support of brake pads 2, spring 13 and telescopic link 12 can be compressed, and the resilience force of compressed spring 13 can provide certain buffering for fixed plate 10 to provide certain buffering, shock attenuation for top cap 4, car 3, thereby reduce the vibrations that car 3 received, protected the people in the car 3.

When car 3 moves up suddenly, through pressing shift knob 7, start double-shaft motor 5, and then make two power output shaft of double-shaft motor 5 drive two threaded rods 8 rotatory, and then make two screw thread section of thick bamboo 9 drive two fixed plates 10 simultaneously and remove to opposite direction, and then make two fixed plates 10 stretch outside top cap 4, stretch the outer fixed plate 10 of top cap 4 can with 2 butts of brake pads to make car 3 stop moving.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An elevator bidirectional anti-falling device comprises a car (3) installed in an elevator shaft (1), and is characterized in that: a plurality of brake blocks (2) are mounted on the wall of the elevator shaft (1); a top cover (4) is fixedly arranged on the top surface of the car (3), the top cover (4) is of a cavity structure, a double-shaft motor (5) is installed in the top cover (4), threaded rods (8) are fixedly connected to two power output shafts of the double-shaft motor (5), lines on the two threaded rods (8) are arranged in a reverse direction, threaded cylinders (9) are connected to the two threaded rods (8) in a threaded mode, fixing plates (10) are fixedly arranged on the two threaded cylinders (9), and a buffer mechanism is arranged below the two fixed plates (10); install in car (3) and be used for controlling double-shaft motor (5) and open shift knob (7) that stop.

2. The elevator bi-directional fall arrest device of claim 1, characterized in that: buffer gear includes connecting plate (11), connecting plate (11) are located fixed plate (10) under, a plurality of telescopic link (12) of fixedly connected with on the top surface of fixed plate (10), it is a plurality of the extension end of telescopic link (12) all with fixed plate (10) fixed connection, the cover is equipped with spring (13) on telescopic link (12), the both ends of spring (13) respectively with fixed plate (10), connecting plate (11) fixed connection.

3. The elevator bi-directional fall arrest device of claim 1, characterized in that: and a battery (6) for supplying power to the double-shaft motor (5) is arranged in the top cover (4).

4. The elevator bi-directional fall arrest device of claim 1, characterized in that: the outer surface of the fixing plate (10) is in contact with the inner wall of the cavity of the top cover (4), and the fixing plate (10) cannot rotate in the cavity of the top cover (4).

5. The elevator bi-directional fall arrest device of claim 1, characterized in that: install solid fixed ring (14) on the top surface of top cap (4), gu be connected with wire rope (15) on fixed ring (14).

6. The elevator bi-directional fall arrest device of claim 2, characterized in that: the brake blocks (2) are distributed at equal intervals along the height direction of the wall of the elevator shaft (1); the fixing plate (10) is made of steel.