Elevator suspension device

Abstract

This utility model relates to the field of elevator technology and discloses an elevator suspension device, including an elevator shaft and a car. A top plate is provided on the top of the car, and a steel rope is fixedly connected to the top outer surface of the top plate. The other end of the steel rope is connected to an external traction machine. A rotating rod is rotatably connected to the bottom outer surface of the top plate. A spring is fixedly connected between two connecting seats. Multiple sets of braking holes are opened on both sides of the inner wall of the elevator shaft. Two braking blocks adapted to the braking holes are fixedly connected to the outer surface of the connecting seats. During normal operation of the car, the steel rope exerts an upward force on the top plate, causing the included angle between the two rotating rods to tend towards parallelism and deforming the spring. When the steel rope breaks, the upward force on the top plate disappears, the spring returns to its original position, and the spring drives the braking blocks to insert into the braking holes, braking the car. This effectively brakes the elevator car in an emergency, ensuring safety during use.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator suspension device. Background Technology

[0002] Elevators, as a vertical transportation tool, play an irreplaceable role in our daily lives and work. Today, elevators have become an indispensable means of transportation. With technological advancements and increasing demand, buildings are being built taller and taller, and the use of elevators is becoming more widespread. Generally, elevators use steel cables to suspend the car, counterweight, and other components.

[0003] Since the traction suspension is directly connected to the steel wire rope, and the car is pulled up and down by the force of the steel wire rope, if the steel wire rope becomes loose or breaks, the suspension and the car will be in danger of falling. The emergency braking system of existing elevators is generally electrically controlled. In extreme cases, such as when the elevator loses power and the backup power supply fails or the controller is damaged, emergency braking cannot be guaranteed, which poses certain safety hazards. Therefore, an elevator suspension device is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides an elevator suspension device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elevator suspension device, comprising an elevator shaft and a car, wherein a top plate is provided on the top of the car, a steel rope is fixedly connected to the top outer surface of the top plate, the other end of the steel rope is connected to an external traction machine, a rotating rod is rotatably connected to the bottom outer surface of the top plate, a connecting seat is rotatably connected to the other end of the rotating rod, a spring is fixedly connected between the two connecting seats, multiple sets of braking holes are provided on both inner walls of the elevator shaft, and two braking blocks adapted to the braking holes are fixedly connected to the outer surface of the connecting seat.

[0006] Furthermore, two fixed blocks arranged symmetrically on the top outer surface of the car are fixedly connected, and a guide rod is fixedly connected between the two fixed blocks. Both connecting seats are movably sleeved on the outer surface of the guide rod.

[0007] Furthermore, the spring is sleeved on the outer surface of the guide rod.

[0008] Furthermore, a mounting base is fixedly connected to the outer surface of the brake block, and a pulley is provided on the outer surface of the mounting base. The side area of ​​the mounting base and the pulley is smaller than the area of ​​the brake block.

[0009] Furthermore, the connecting seat is provided with ball bearings inside, and the ball bearings are movably connected to the outer surface of the slide rod.

[0010] Furthermore, the side rod and brake block are made of low-alloy high-strength steel.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] When the elevator car is working normally, the steel cable exerts an upward force on the top plate, causing the angle between the two rotating rods to tend to be parallel and the spring to deform. When the steel cable breaks, the upward force on the top plate disappears, the spring returns to its original position, and the spring drives the brake block to insert into the brake hole to brake the car, thereby effectively braking the elevator car in an emergency and ensuring safety during use. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the elevator car and its related structures of this utility model;

[0015] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0016] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0017] In the diagram: 1. Elevator shaft; 2. Car; 3. Top plate; 4. Rotary rod; 5. Connecting seat; 6. Brake hole; 7. Spring; 8. Side rod; 9. Brake block; 10. Steel rope; 11. Guide rod; 12. Mounting seat; 13. Pulley. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please refer to the following: Figures 1-4This utility model provides a technical solution: an elevator suspension device, including an elevator shaft 1 and a car 2. A top plate 3 is provided on the top of the car 2. A steel rope 10 is fixedly connected to the outer surface of the top of the top plate 3. The other end of the steel rope 10 is connected to an external traction machine. A rotating rod 4 is rotatably connected to the outer surface of the bottom of the top plate 3. A connecting seat 5 is rotatably connected to the other end of the rotating rod 4. A spring 7 is fixedly connected between the two connecting seats 5. Multiple sets of brake holes 6 are opened on both sides of the inner wall of the elevator shaft 1. Two brake blocks 9, which are adapted to the brake holes 6, are fixedly connected to the outer surface of the connecting seat 5. Specifically, the spring 7 is made of spring steel, which has a fast rebound speed and can quickly return to its original position when the spring 7 is deformed. The traction machine and the steel rope... When the steel rope 10 is taut, it applies upward force to the top plate 3, causing the included angle between the two rotating rods 4 to tend to be parallel. The rotating rods 4 drive the connecting seat 5 to move towards the center, causing the spring 7 to deform. When the steel rope 10 breaks unexpectedly, the force on the top of the top plate 3 disappears, and the spring 7 returns to its original position. The instantaneous elastic force of the spring 7 drives the connecting seat 5 to move. The connecting seat 5 drives the side rod 8 to move the brake block 9 to both sides, so that the brake block 9 contacts the inner wall of the elevator shaft 1. When the brake block 9 contacts the brake hole 6, the elastic force of the spring 7 drives the brake block 9 to insert into the brake hole 6, braking and limiting the car 2, thereby effectively braking the elevator car 2 in an emergency and ensuring safety during use.

[0020] In this embodiment, two fixed blocks are fixedly connected to the top outer surface of the car 2, which are arranged symmetrically on the left and right. A guide rod 11 is fixedly connected between the two fixed blocks. Both connecting seats 5 are movably sleeved on the outer surface of the guide rod 11. Specifically, the connecting seats 5 slide on the guide rod 11 when moving, so that the connecting seats 5 move stably in a straight line.

[0021] In this embodiment, the spring 7 is sleeved on the outer surface of the guide rod 11. Specifically, the guide rod 11 limits the spring 7 to prevent the spring 7 from tilting.

[0022] In this embodiment, a mounting base 12 is fixedly connected to the outer surface of the brake block 9. A pulley 13 is provided on the outer surface of the mounting base 12. The side area of ​​the mounting base 12 and the pulley 13 is smaller than the area of ​​the brake block 9. Specifically, when the brake block 9 contacts the inner wall of the elevator shaft 1, the pulley 13 contacts the inner wall of the elevator shaft 1, causing the pulley 13 to slide on the inner wall of the elevator shaft 1. When the pulley 13 contacts the brake hole 6, the spring 7 is reset and springs into the interior of the brake hole 6.

[0023] In this embodiment, the connecting seat 5 is provided with a ball bearing inside. The ball bearing is movably connected to the outer surface of the slide rod. Specifically, when the connecting seat 5 slides on the slide rod, the ball bearing slides on the slide rod, generating rolling friction. As a result, when the spring 7 returns to its original position, the friction between the connecting seat 5 and the slide rod is small, allowing the spring 7 to return to its original position instantly.

[0024] In this embodiment, the side rod 8 and the brake block 9 are made of low-alloy high-strength steel. Specifically, the side rod 8 and the brake block 9 made of low-alloy high-strength steel have high strength, with a yield strength typically above 300MPa, enabling them to stably support and brake the car 2.

[0025] Working principle: In use, this utility model connects to the steel rope 10 via a traction machine. When the steel rope 10 is taut, it applies upward force to the top plate 3, causing the included angle between the two rotating rods 4 to tend to be parallel. The rotating rods 4 drive the connecting seat 5 to move towards the center, causing the spring 7 to deform. When the steel rope 10 breaks unexpectedly, the force on the top of the top plate 3 disappears, and the spring 7 returns to its original position. The instantaneous elastic force of the spring 7 drives the connecting seat 5 to move. The connecting seat 5 drives the side rod 8, causing the brake block 9 to move to both sides, so that the brake block 9 contacts the inner wall of the elevator shaft 1. When the brake block 9 contacts the brake hole 6, the elastic force of the spring 7 drives the brake block 9 to insert into the brake hole 6, braking and limiting the car 2, thereby effectively braking the elevator car 2 in an emergency and ensuring safety during use.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator suspension device, comprising an elevator shaft (1) and a car (2), characterized in that: The top of the car (2) is provided with a top plate (3), and a steel rope (10) is fixedly connected to the top outer surface of the top plate (3). The other end of the steel rope (10) is connected to an external traction machine. A rotating rod (4) is rotatably connected to the bottom outer surface of the top plate (3). A connecting seat (5) is rotatably connected to the other end of the rotating rod (4). A spring (7) is fixedly connected between the two connecting seats (5). Multiple sets of brake holes (6) are opened on both sides of the inner wall of the elevator shaft (1). Two brake blocks (9) that are compatible with the brake holes (6) are fixedly connected to the outer surface of the connecting seat (5).

2. The elevator suspension device according to claim 1, characterized in that: The top outer surface of the car (2) is fixedly connected to two fixed blocks arranged symmetrically on the left and right, and a guide rod (11) is fixedly connected between the two fixed blocks. The two connecting seats (5) are movably sleeved on the outer surface of the guide rod (11).

3. The elevator suspension device according to claim 1, characterized in that: The spring (7) is sleeved on the outer surface of the guide rod (11).

4. The elevator suspension device according to claim 1, characterized in that: The outer surface of the brake block (9) is fixedly connected to a mounting base (12), and a pulley (13) is provided on the outer surface of the mounting base (12). The side area of ​​the mounting base (12) and the pulley (13) is smaller than the area of ​​the brake block (9).

5. An elevator suspension device according to claim 1, characterized in that: The connecting seat (5) is provided with a ball bearing inside, and the ball bearing is movably connected to the outer surface of the slide rod.

6. An elevator suspension device according to claim 1, characterized in that: The side rod (8) and brake block (9) are made of low-alloy high-strength steel.

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