Vertical elevator emergency brake anti-falling device and method thereof

Abstract

This invention discloses an emergency braking and fall prevention device and method for a vertical elevator, comprising an elevator main frame and an emergency braking and fall prevention device. The elevator main frame houses a car, and a car buffer is located at the center of the bottom end of the elevator main frame. A traction controller is located at the top of the elevator main frame, with a traction steel cable at one end connected to the car and the other end connected to a counterweight located on one side of the elevator main frame. A guide wheel is located on one side of the top of the elevator main frame. In this invention, the fall prevention system consists of an emergency braking and fall prevention device and a speed detector, integrating the two parts into one unit. This ensures the stability of the system's operation, provides more accurate malfunction assessment, and allows for timely prevention of dangerous situations, ensuring the safety of passengers inside.

Description

Technical Field

[0001] This invention relates to the field of elevators, specifically to an emergency braking and anti-fall device and method for a vertical elevator. Background Technology

[0002] An elevator is a vertical lifting machine powered by an electric motor, equipped with a box-shaped cabin, used for transporting people or goods in multi-story buildings. There are also escalator-type elevators, where steps are mounted on a continuous running track. They are commonly known as escalators or moving walkways. They are fixed lifting devices that serve designated floors. A vertical elevator has a car that runs between at least two vertical rigid guide rails. The size and structure of the car facilitate passenger entry and exit and loading and unloading of goods. Conventionally, regardless of its driving method, elevator is used as a general term for vertical transportation tools within a building.

[0003] Existing technologies for vertical elevators still have certain drawbacks in use. When traditional vertical elevators malfunction, they usually fall directly from the top to the bottom, causing casualties. They do not have emergency braking and fall prevention functions, resulting in poor safety. Summary of the Invention

[0004] The purpose of this invention is to provide an emergency braking and anti-fall device and method for vertical elevators, in order to solve the problem mentioned in the background art that traditional vertical elevators, when malfunctioning, usually fall directly from the top to the bottom, causing casualties, and lack emergency braking and anti-fall functions, resulting in poor safety.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an emergency braking and anti-fall device for a vertical elevator, comprising an elevator main frame and an emergency braking and anti-fall device. The elevator main frame contains a car, and a car buffer is located at the center of the bottom end of the elevator main frame. A traction controller is located at the top of the elevator main frame, with a traction steel cable at one end of the traction controller. One end of the traction steel cable is connected to the car, and the other end is connected to a counterweight. The counterweight is located on one side of the elevator main frame. A [further details about the top of the elevator main frame are missing]. The elevator has guide wheels, and fixed steel wire ropes are installed at the four corners of the front and rear ends inside the main frame of the elevator. An emergency brake anti-fall device is installed at the bottom of the car, aligned with the fixed steel wire ropes. The emergency brake anti-fall device includes an emergency brake motor and a rotating locking head. A positioning retaining sleeve is installed below the rotating locking head. A support rod is installed on one side of the positioning retaining sleeve. A speed detector is installed inside the support rod. The emergency brake anti-fall device is located below the common base plate. A backup battery is installed on one side of the common base plate. A controller is installed at one end of the backup battery.

[0006] In a further embodiment, the output terminal of the controller is electrically connected to the input terminal of the speed detector, and the speed detector is fixedly connected to the common base plate by a bracket, and the bracket is designed as an L-shaped structure.

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

[0008] In a further embodiment, the outer ring of the surface of the rotary locking head is provided with locking teeth, and there are four locking teeth in total, and the cross-section of the inner end of the locking teeth is set as a triangular structure.

[0009] In a further embodiment, a protective cover is provided at the center of the front end of the rotary locking head, and the two ends of the protective cover are fixedly connected to the rotary locking head through fixing posts, and the rotary locking head is slidably connected to the fixing wire rope.

[0010] In a further embodiment, the positioning retaining sleeve has limiting teeth at the four corners on both sides of its interior, and the front and rear ends of the positioning retaining sleeve have hollow light-transmitting openings. The positioning retaining sleeve is slidably connected to the fixing wire rope.

[0011] A method for preventing falls in a vertical elevator using an emergency braking device includes the following steps:

[0012] S1. Insert the fixing wire rope into the positioning retaining sleeve and the rotating locking head, and weld the fixing wire rope to the four corners of the front and rear ends of the elevator main frame. Use bolts to install the common base plate at the bottom of the car, aligned with the fixing wire rope.

[0013] S2. The speed of the car's vertical movement is monitored in real time by a speed measuring device. When the car's downward position is higher than the normal operating speed, the speed measuring device sends a signal to the controller.

[0014] S3. The emergency braking motor is controlled by the controller, which drives the rotating locking head to rotate clockwise, so that the locking teeth intersect with the fixed steel wire rope, thereby locking the car in the descending position and preventing the car from falling downward.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The fall prevention system in this invention consists of two parts: an emergency brake fall prevention device and a speed detector. Combining these two parts into one unit ensures the stability of the system's operation, provides more accurate judgment of malfunctions, and can promptly stop dangerous situations, ensuring the safety of passengers inside. When the elevator falls, the car descends at a speed at least twice as fast as the normal operating speed. The speed detector can monitor the car's descent speed in real time. When the car's speed exceeds the set speed, it sends a signal to the controller, which then sends a command to the emergency brake fall prevention device, causing the emergency brake motor to run. This drives the rotating locking head to rotate and lock with the fixed steel wire rope, preventing the car from falling downwards and thus achieving the fall prevention function, giving it an emergency braking fall prevention function. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a vertical elevator emergency braking and anti-fall device and method according to the present invention;

[0018] Figure 2 This is a schematic diagram showing the detailed structure of part A of the present invention;

[0019] Figure 3 This is a side view of the emergency braking fall arrestor of the present invention;

[0020] Figure 4 This is a side view of the speed measuring device of the present invention.

[0021] In the diagram: 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 retaining sleeve; 10. Emergency brake fall arrestor; 11. Locking tooth; 12. Rotary locking head; 13. Protective cover; 14. Hollowed-out light-transmitting opening; 15. Support rod; 16. Speed ​​detector; 17. Bracket; 18. Fixed column; 19. Common base plate; 20. Limiting tooth; 21. Backup battery; 22. Controller; 23. Emergency brake motor. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Please see Figure 1-4An embodiment of the present invention provides an emergency braking and anti-fall device for a vertical elevator, comprising an elevator main frame 1 and an emergency braking and anti-fall device 10. The elevator main frame 1 contains a car 7. A car buffer 8 is located at the center of the bottom end of the elevator main frame 1. A traction controller 3 is located at the top of the elevator main frame 1. One end of the traction controller 3 is connected to a traction steel wire rope 2, which is connected to the car 7. The other end of the traction steel wire rope 2 is connected to a counterweight 5, which is located on one side inside the elevator main frame 1. A guide wheel 4 is located on one side of the top of the elevator main frame 1. Fixed steel wire ropes 6 are located at the four corners of the front and rear ends inside the elevator main frame 1. An emergency braking and anti-fall device 10 is located at the bottom of the car 7, aligned with the fixed steel wire ropes 6. The emergency braking and anti-fall device 10 includes an emergency braking motor 23 and a rotating locking head 12. A positioning retaining sleeve 9 is located below the rotating locking head 12. A support rod 15 is located on one side of the positioning retaining sleeve 9, and a speed detector 1 is located inside the support rod 15. 6. The emergency braking fall arrestor 10 is located below the common base plate 19. A backup battery 21 is located on one side below the common base plate 19. A controller 22 is located at one end of the backup battery 21. The car 7 carries passengers. The car buffer 8 is used to cushion the lowest position of the car 7 as it descends. The guide wheel 4 is used to guide and position the traction steel wire rope 2. The traction controller 3 is used to control the sliding position of the traction steel wire rope 2. The fixed steel wire rope 6 is used to support and position the locking position of the emergency braking fall arrestor 10. The emergency braking fall arrestor 10 is used to prevent the car 7 from falling. The rotating locking head 12 is used to install the locking teeth 11 and to rotate and adjust the position of the locking teeth 11. The positioning retaining sleeve 9 is used to position the speed measuring device 16 for testing. The speed measuring device 16 is used to test the descent position of the car 7. The backup battery 21 is used to store electricity as a backup to avoid power outages.

[0024] The output terminal of the controller 22 is electrically connected to the input terminal of the speed detector 16. The speed detector 16 is fixedly connected to the common base plate 19 through the bracket 17, which is designed as an L-shaped structure and is used to suspend the speed detector 16. The input terminal of the emergency brake motor 23 is electrically connected to the output terminal of the controller 22, and the rotating locking head 12 is fixedly connected to the electric shaft on the emergency brake motor 23 through bolts. The bolts facilitate the installation and fixation of the rotating locking head 12 and the emergency brake motor 23.

[0025] The outer ring of the surface of the rotary locking head 12 is provided with locking teeth 11. There are four locking teeth 11 in total, and the inner end of the locking teeth 11 has a triangular cross-section. The locking teeth 11 are used to prevent the car 7 from descending. The center of the front end of the rotary locking head 12 is provided with a protective cover 13. The two ends of the protective cover 13 are fixedly connected to the rotary locking head 12 through the fixing post 18. The rotary locking head 12 is slidably connected to the fixed steel wire rope 6. 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 rotary locking head 12 are installed more securely.

[0026] The positioning retaining sleeve 9 has four corners on both sides inside, and the front and rear ends of the positioning retaining sleeve 9 have hollow light-transmitting openings 14. The positioning retaining sleeve 9 is slidably connected to the fixed steel wire rope 6. The limiting teeth 20 are used to limit the width of the positioning retaining sleeve 9, and the hollow light-transmitting openings 14 are used to increase the internal light, which is convenient for the speed measuring device 16 to measure.

[0027] A method for preventing falls in a vertical elevator using an emergency braking device includes the following steps:

[0028] S1. Insert the fixing wire rope 6 into the positioning retaining sleeve 9 and the rotating locking head 12, and weld the fixing wire rope 6 to the four corners of the front and rear ends inside the elevator main frame 1. Use bolts to install the common base plate 19 at the bottom of the car 7, aligned with the fixing wire rope 6.

[0029] S2. The speed of the car 7 moving up and down is monitored in real time by the speed measuring device 16. When the car 7 is lowered to a position higher than the normal operating speed, the speed measuring device 16 sends a signal to the controller 22.

[0030] S3. The emergency braking motor 23 is controlled by the controller 22 to drive the rotating locking head 12 to rotate clockwise, so that the locking teeth 11 intersect with the fixed steel wire rope 6, thereby locking the position of the car 7 as it descends and preventing the car 7 from falling downward.

[0031] Working principle: In use, the fixed steel wire rope 6 is threaded into the positioning 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 inside the elevator main frame 1. The common base plate 19 is installed at the bottom of the car 7, aligned with the fixed steel wire rope 6, using bolts. The speed of the car 7 moving up and down is monitored in real time by the speed sensor 16. When the downward position of the car 7 is higher than the normal operating speed, the speed sensor 16 sends a signal to the controller 22. The controller 22 controls the emergency brake motor 23, which drives the rotating locking head 12 to rotate clockwise, so that the locking teeth 11 intersect with the fixed steel wire rope 6, thereby locking the downward position of the car 7 and preventing the car 7 from falling.

[0032] It will be apparent to those skilled in the art that the present 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 its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vertical elevator emergency braking and fall prevention device, comprising an elevator main frame (1) and an emergency braking and fall prevention device (10), characterized in that, The elevator main frame (1) has a car (7) inside. A car buffer (8) is located at the center of the bottom of the elevator main frame (1). A traction controller (3) is located at the top of the elevator main frame (1). A traction wire rope (2) is located 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 located on one side inside the elevator main frame (1). A guide wheel (4) is located on one side of the top of the elevator main frame (1). Fixed wire ropes (6) are located at the four corners of the front and rear ends of the elevator main frame (1). The bottom of the car (7) An emergency braking fall arrestor (10) is provided at a position aligned with the fixed steel wire rope (6). The emergency braking fall arrestor (10) includes an emergency braking motor (23) and a rotating locking head (12). A positioning retaining sleeve (9) is provided below the rotating locking head (12). A support rod (15) is provided on one side of the positioning retaining sleeve (9). A speed measuring device (16) is provided inside the support rod (15). The emergency braking fall arrestor (10) is located below the common base plate (19). A spare battery (21) is provided on one side below the common base plate (19). A controller (22) is provided at one end of the spare battery (21). The battery (21) supplies power to the controller (22). The output terminal of the controller (22) is electrically connected to the input terminal of the speed measuring device (16). The speed measuring device (16) is fixedly connected to the common base plate (19) through a bracket (17), and the bracket (17) is designed as an L-shaped structure. The input end of the emergency braking motor (23) is electrically connected to the output end of the controller (22), and the rotating locking head (12) is fixedly connected to the electric shaft on the emergency braking motor (23) by bolts; The outer ring of the surface of the rotating locking head (12) is provided with locking teeth (11), and there are four locking teeth (11) in total. The cross-section of the inner end of the locking teeth (11) is set as a triangular structure. The center of the front end of the rotary locking head (12) is provided with a protective cover (13), and the two ends of the protective cover (13) are fixedly connected to the rotary locking head (12) through a fixing post (18), and the rotary locking head (12) is slidably connected to the fixing wire rope (6). The positioning retaining sleeve (9) has limiting teeth (20) at the four corners on both sides inside. The positioning retaining sleeve (9) has hollow light-transmitting openings (14) at the front and rear ends. The positioning retaining sleeve (9) is slidably connected to the fixing wire rope (6). The working method of the aforementioned emergency braking and fall prevention device for a vertical elevator includes the following steps: S1. Insert the fixed wire rope (6) into the positioning retaining sleeve (9) and the rotating locking head (12), and weld the fixed wire rope (6) to the four corners of the front and rear ends of the elevator main frame (1). Use bolts to install the common base plate (19) at the bottom of the car (7) aligned with the fixed wire rope (6). S2. The speed of the car (7) moving up and down is monitored in real time by the speed measuring device (16). When the car (7) moves down to a position higher than the normal operating speed, the speed measuring device (16) sends a signal to the controller (22). S3. The emergency braking motor (23) is controlled by the controller (22) to drive the rotating locking head (12) to rotate clockwise, so that the locking teeth (11) intersect with the fixed steel wire rope (6), thereby locking the position of the car (7) as it descends and preventing the car (7) from falling down.

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