Emergency braking anti-falling device and method for vertical elevator

Abstract

The vertical elevator emergency braking anti-falling device comprises an elevator main frame body and an emergency braking anti-falling device, a lift car is arranged in the elevator main frame body, a lift car buffer is arranged in the center of the bottom end in the elevator main frame body, a traction controller is arranged at the top of the elevator main frame body, and an emergency braking anti-falling device is arranged at the bottom end of the elevator main frame body. A traction controller is arranged in the elevator main frame body, a traction steel wire rope is arranged at one end of the traction controller, one end of the traction steel wire rope is connected with the elevator car, the other end of the traction steel wire rope is connected with a balance weight, the balance weight is arranged on one side in the elevator main frame body, and a guide wheel is arranged on one side of the top of the elevator main frame body. The anti-falling system is composed of the emergency braking anti-falling device and the velometer, and the two parts are combined into a whole, so that the working stability of the system can be guaranteed, the fault condition judgment is more accurate, the dangerous condition can be stopped in time, and the safety of internal passengers is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of elevators, and in particular to a vertical elevator emergency braking anti-falling device and a method thereof. Background Art

[0002] An elevator is a vertical lift powered by an electric motor, equipped with a box-shaped cabin, used for carrying people or goods in multi-story buildings. It also has step-type treads mounted on tracks and running continuously, commonly known as escalators or moving walkways, which are fixed lifting equipment serving specified floors. A vertical elevator has a car that runs between at least two rows of vertical rigid guide rails. The size and structure of the car are convenient for passengers to enter and exit and to load and unload goods. It is customary to use elevators as a general term for vertical transportation vehicles within buildings, regardless of their driving mode.

[0003] There are still certain drawbacks in the use of vertical elevators in the prior art. When a traditional vertical elevator fails, it usually falls directly from the sky to the bottom, causing casualties. It does not have an emergency braking anti-falling function and has poor safety. Summary of the invention

[0004] The purpose of the present invention is to provide a vertical elevator emergency braking anti-falling device and method thereof, so as to solve the problem that the traditional vertical elevator proposed in the above background technology usually falls directly from the top to the bottom when a failure occurs, causing casualties, and has no emergency braking anti-falling function and poor safety.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vertical elevator emergency braking anti-falling device, comprising an elevator main frame and an emergency braking anti-falling device, a car is arranged inside the elevator main frame, a car buffer is arranged at the center position of the bottom end inside the elevator main frame, a traction controller is arranged on the top of the elevator main frame, a traction wire rope is arranged at one end of the traction controller, one end of the traction wire rope is connected to the car, the other end of the traction wire rope is connected to a counterweight, the counterweight is arranged on one side of the elevator main frame, and a There are guide wheels, and fixed steel wire ropes are provided at the four corners of the front and rear ends of the elevator main frame. An emergency brake anti-fall device is provided at the position where the bottom of the car is aligned with the fixed steel wire rope. The emergency brake anti-fall device includes an emergency brake motor and a rotating locking head. A positioning and retaining sleeve is provided below the rotating locking head, a support rod is provided on one side of the positioning and retaining sleeve, a speed meter is provided inside the support rod, and the emergency brake anti-fall device is provided below the common bottom plate, and a backup battery is provided on one side below the common bottom plate, and a controller is provided at one end of the backup battery.

[0006] In a further embodiment, the output end of the controller is electrically connected to the input end of the speed meter, the speed meter is fixedly connected to the common base plate via a bracket, and the bracket is configured as an L-shaped structure.

[0007] In a further embodiment, the input end of the emergency brake motor is electrically connected to the output end of the controller, and the rotary locking head is fixedly connected to the electric shaft on the emergency brake motor by bolts.

[0008] In a further embodiment, locking teeth are provided at the outer circle position of the surface of the rotating locking head, and there are four locking teeth in total, and the cross-section of the inner end of the locking tooth is set to be a triangular structure.

[0009] In a further embodiment, a protective cover is provided at the center position of the front end of the rotating locking head, and both ends of the protective cover are fixedly connected to the rotating locking head through fixed columns, and the rotating locking head is connected to the fixed wire rope through sliding.

[0010] In a further embodiment, limiting teeth are provided at the four corners on both sides of the interior of the positioning and retaining sleeve, hollow light-transmitting openings are provided at the front and rear ends of the positioning and retaining sleeve, and the positioning and retaining sleeve is connected to the fixed steel wire rope by sliding.

[0011] A vertical elevator emergency braking anti-falling method uses a vertical elevator emergency braking anti-falling device; comprising the following steps:

[0012] S1. Insert the fixed steel wire rope into the positioning and holding sleeve and the rotating locking head, and weld the fixed steel wire rope to the four corners of the front and rear ends of the elevator main frame. Use bolts to install the common bottom plate at the bottom of the car in alignment with the fixed steel wire rope;

[0013] S2, the speed of the car is monitored in real time by the speed meter. When the car is lowered to a position higher than the normal operating speed, the speed meter sends a signal to the controller;

[0014] S3. The emergency brake motor is controlled by the controller to drive the rotating locking head to rotate clockwise, so that the locking teeth and the fixed wire rope are interlaced, thereby locking the descending position of the car to prevent the car from falling down.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The anti-fall system in the invention is composed of an emergency brake anti-fall device and a speed meter. The two parts are combined into one to ensure the stability of the system's operation, make more accurate judgments on fault conditions, and stop dangerous situations in time to ensure the safety of passengers inside. When the elevator falls, the speed at which the car descends is at least twice as fast as the normal operating speed. The speed meter can monitor the speed of the car's descent in real time. When the car's speed exceeds the set speed, a signal will be sent to the controller, which will issue a command to the emergency brake anti-fall device to run the emergency brake motor, drive the rotating locking head to rotate, and lock it with the fixed wire rope to stop the car from falling, thereby playing an anti-fall role and giving it an emergency brake anti-fall function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a vertical elevator emergency braking anti-falling device and method thereof of the present invention;

[0018] Figure 2 It is a detailed structural diagram of part A of the present invention;

[0019] Figure 3 A side view of the emergency brake fall arrester of the present invention;

[0020] Figure 4 It is a side view of the speed meter of the present invention.

[0021] In the figure: 1. Elevator main frame; 2. Traction wire rope; 3. Traction controller; 4. Guide wheel; 5. Counterweight; 6. Fixed wire rope; 7. Car; 8. Car buffer; 9. Positioning and retaining sleeve; 10. Emergency brake anti-fall device; 11. Locking teeth; 12. Rotating locking head; 13. Protective cover; 14. Hollow light-transmitting port; 15. Support rod; 16. Speed ​​meter; 17. Bracket; 18. Fixed column; 19. Common bottom plate; 20. Limiting teeth; 21. Backup battery; 22. Controller; 23. Emergency brake motor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figure 1-4, an embodiment of the present invention: a vertical elevator emergency brake anti-fall device, comprising an elevator main frame 1 and an emergency brake anti-fall device 10, a car 7 is arranged inside the elevator main frame 1, a car buffer 8 is arranged at the center of the bottom end of the elevator main frame 1, a traction controller 3 is arranged on the top of the elevator main frame 1, a traction wire rope 2 is arranged at one end of the traction controller 3, one end of the traction wire rope 2 is connected to the car 7, and the other end of the traction wire rope 2 is connected to the counterweight 5, the counterweight 5 is arranged on one side of the elevator main frame 1, a guide wheel 4 is arranged on one side of the top of the elevator main frame 1, fixed wire ropes 6 are arranged at the four corners of the front and rear ends of the elevator main frame 1, an emergency brake anti-fall device 10 is arranged at the position where the bottom of the car 7 is aligned with the fixed wire rope 6, the emergency brake anti-fall device 10 includes an emergency brake motor 23 and a rotary locking head 12, a positioning and retaining sleeve 9 is arranged below the rotary locking head 12, a support rod 15 is arranged on one side of the positioning and retaining sleeve 9, and a speed meter 1 is arranged inside the support rod 15 6. The emergency brake anti-fall device 10 is arranged below the common bottom plate 19. A backup battery 21 is arranged on one side below the common bottom plate 19. A controller 22 is arranged at one end of the backup battery 21. The car 7 is used to carry passengers. The car buffer 8 is used to buffer the lowest position of the car 7 when it is lowered downward. The guide wheel 4 is used to guide and position the upper and lower positions of the traction wire rope 2. The traction controller 3 is used to control the sliding position of the traction wire rope 2. The fixed wire rope 6 is used to support and position the locked position of the emergency brake anti-fall device 10. The emergency brake anti-fall device 10 is used to prevent the car 7 from falling. The rotating locking head 12 is used to install the locking tooth 11 and rotate and adjust the position of the locking tooth 11. The positioning and retaining sleeve 9 is used to locate the test position of the speed meter 16. The speed meter 16 is used to test the descending position of the car 7. The backup battery 21 is used to store electricity as a backup to avoid power outages.

[0024] The output end of the controller 22 is electrically connected to the input end of the speed meter 16, and the speed meter 16 is fixedly connected to the common base plate 19 through a bracket 17, and the bracket 17 is set to an L-shaped structure, and the bracket 17 is used to suspend and install the speed meter 16; the input end of the emergency brake motor 23 is electrically connected to the output end of the controller 22, and the rotary locking head 12 is fixedly connected to the electric shaft on the emergency brake motor 23 by bolts, and the rotary locking head 12 and the emergency brake motor 23 are conveniently installed and fixed by bolts.

[0025] A locking tooth 11 is provided at the outer circle position of the surface of the rotating locking head 12, and there are four locking teeth 11 in total, and the cross-section of the inner end of the locking tooth 11 is set as a triangular structure, and the locking tooth 11 is used to prevent the car 7 from descending; a protective cover 13 is provided at the center position of the front end of the rotating locking head 12, and the two ends of the protective cover 13 are fixedly connected to the rotating locking head 12 through a fixing column 18, and the rotating locking head 12 is connected to the fixed steel wire rope 6 through a sliding connection, and the protective cover 13 is used to prevent the fixed steel wire rope 6 from shifting, so that the fixed steel wire rope 6 and the rotating locking head 12 are installed more firmly.

[0026] Limiting teeth 20 are provided at the four corners on both sides of the interior of the positioning and retaining sleeve 9, and hollow light-transmitting openings 14 are provided at the front and rear ends of the positioning and retaining sleeve 9. The positioning and retaining sleeve 9 is connected to the fixed steel wire rope 6 by sliding. The limiting teeth 20 are used to limit the width of the positioning and retaining sleeve 9, and the hollow light-transmitting opening 14 is used to increase the internal light to facilitate measurement by the speed meter 16.

[0027] A vertical elevator emergency braking anti-falling method uses a vertical elevator emergency braking anti-falling device; comprising the following steps:

[0028] S1. Insert the fixed steel wire rope 6 into the positioning and holding sleeve 9 and the rotating locking head 12, and weld the fixed steel wire rope 6 to the four corners of the front and rear ends of the elevator main frame 1, and use bolts to install the common bottom plate 19 at the bottom of the car 7 in alignment with the fixed steel wire rope 6;

[0029] S2, the speed of the car 7 is monitored in real time by the speed meter 16. When the downward position of the car 7 is higher than the normal operating speed, the speed meter 16 transmits a signal to the controller 22;

[0030] S3. The emergency brake motor 23 is controlled by the controller 22 to drive the rotary locking head 12 to rotate clockwise, so that the locking teeth 11 are interlaced with the fixed wire rope 6, thereby locking the descending position of the car 7 to prevent the car 7 from falling downward.

[0031] Working principle: When in use, the fixed steel wire rope 6 is inserted into the interior of the positioning and retaining sleeve 9 and the rotating locking head 12, and the fixed steel wire rope 6 is welded and fixed to the four corners of the front and rear ends of the elevator main frame 1, and the common bottom plate 19 is installed at the bottom of the car 7 with bolts in alignment with the fixed steel wire rope 6. The speed of the car 7 up and down is monitored in real time by the speed meter 16. When the downward position of the car 7 is higher than the normal operating speed, the speed meter 16 transmits a signal to the controller 22, and the emergency brake motor 23 is controlled by the controller 22 to drive the rotating locking head 12 to rotate clockwise, so that the locking teeth 11 are staggered with the fixed steel wire rope 6, thereby locking the descending position of the car 7 to prevent the car 7 from falling down.

[0032] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A vertical elevator emergency brake anti-fall device, comprising an elevator main frame (1) and an emergency brake anti-fall device (10), characterized in that: A car (7) is provided inside the elevator main frame (1), a car buffer (8) is provided at the center of the bottom end of the elevator main frame (1), a traction controller (3) is provided at the top of the elevator main frame (1), a traction wire rope (2) is provided at one end of the traction controller (3), one end of the traction wire rope (2) is connected to the car (7), the other end of the traction wire rope (2) is connected to a counterweight (5), the counterweight (5) is arranged on one side of the elevator main frame (1), a guide wheel (4) is provided on one side of the top of the elevator main frame (1), and fixed wire ropes (6) are provided at the four corners of the front and rear ends of the elevator main frame (1). ), an emergency brake anti-fall device (10) is provided at a position where the bottom of the car (7) is aligned with the fixed wire rope (6), the emergency brake anti-fall device (10) comprises an emergency brake motor (23) and a rotary locking head (12), a positioning and retaining sleeve (9) is provided below the rotary locking head (12), a support rod (15) is provided on one side of the positioning and retaining sleeve (9), a speed meter (16) is provided inside the support rod (15), the emergency brake anti-fall device (10) is provided below a common bottom plate (19), a backup battery (21) is provided on one side below the common bottom plate (19), and a controller (22) is provided at one end of the backup battery (21).

2. A vertical elevator emergency braking anti-falling device according to claim 1, characterized in that: The output end of the controller (22) is electrically connected to the input end of the speed meter (16), and the speed meter (16) is fixedly connected to the common bottom plate (19) via a bracket (17), and the bracket (17) is set to an L-shaped structure.

3. A vertical elevator emergency braking anti-falling device according to claim 1, characterized in that: The input end of the emergency brake motor (23) is electrically connected to the output end of the controller (22), and the rotary locking head (12) is fixedly connected to the electric shaft on the emergency brake motor (23) by bolts.

4. A vertical elevator emergency braking anti-falling device according to claim 1, characterized in that: The outer ring position of the surface of the rotating locking head (12) is provided with locking teeth (11), and there are four locking teeth (11) in total, and the cross section of the inner end of the locking tooth (11) is set as a triangular structure.

5. A vertical elevator emergency braking anti-falling device according to claim 1, characterized in that: A protective cover (13) is provided at the center of the front end of the rotating locking head (12), and both ends of the protective cover (13) are fixedly connected to the rotating locking head (12) via fixing columns (18), and the rotating locking head (12) is connected to the fixed steel wire rope (6) by sliding.

6. A vertical elevator emergency braking anti-falling device according to claim 1, characterized in that: Limiting teeth (20) are provided at the four corners on both sides of the interior of the positioning and retaining sleeve (9), hollow light-transmitting openings (14) are provided at the front and rear ends of the positioning and retaining sleeve (9), and the positioning and retaining sleeve (9) is connected to the fixed steel wire rope (6) by sliding.

7. A vertical elevator emergency braking anti-falling method according to claim 1, characterized in that: A vertical elevator emergency braking anti-falling device according to any one of claims 1 to 6 is used; comprising the following steps: S1. Insert the fixed steel wire rope (6) into the interior of the positioning and retaining sleeve (9) and the rotating locking head (12), and weld and fix the fixed steel wire rope (6) to the four corners of the front and rear ends of the elevator main frame (1), and use bolts to install the common bottom plate (19) at the bottom of the car (7) in a position aligned with the fixed steel wire rope (6); S2, monitoring the speed of the car (7) in real time by means of a speed meter (16); when the downward position of the car (7) is higher than the normal operating speed, the speed meter (16) transmits a signal to the controller (22); S3. The emergency brake motor (23) is controlled by the controller (22) to drive the rotary locking head (12) to rotate clockwise, so that the locking teeth (11) and the fixed steel wire rope (6) are interlaced, thereby locking the descending position of the car (7) to prevent the car (7) from falling downward.

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