Multidirectional anti-seismic self-locking buffer device for elevator

Abstract

The utility model discloses a multidirectional anti-seismic self-locking buffer device for an elevator, which belongs to the technical field of elevator braking safety protection and comprises an elevator car, a connecting beam fixedly connected to the bottom of the elevator car and a lever type emergency brake mounted below the connecting beam. Upper connecting seats are symmetrically mounted at the bottom of the connecting beam, lower connecting seats are mounted below the upper connecting seats, the upper connecting seats and the lower connecting seats are compressed and deformed through spring shock absorbers and are used for reducing inertia acting force, meanwhile, the upper connecting seats and the lower connecting seats are infinitely close, and the upper connecting seats and the lower connecting seats are fixed through mutual correspondence of like magnetic poles between two magnetic blocks mounted on a fixing seat; therefore, when the magnetic blocks approach to each other, the magnetic blocks repel each other by utilizing magnetic force, so that a reverse acting force is applied to the compression direction of the spring shock absorber, the inertia acting force can be further reduced through multi-direction shock resistance, and the protection effect on passengers in the elevator car is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator braking safety protection technology, and more specifically, to an elevator multi-directional anti-vibration self-locking buffer device. Background Technology

[0002] Elevator braking is a safety device used for elevator safety. It works by using electromagnetic force to quickly stop the elevator and keep it in a designated position in case of an emergency, thus ensuring the safety of passengers.

[0003] In existing elevators, during emergency braking, the car begins to fall rapidly. The speed governor rotates along with the steel cable. As the speed governor's rotation speed increases, after reaching a critical point, the crank arm connecting the hook in the speed governor is thrown away from the center under the action of centrifugal force. Once the hook catches the barb on the inner ring of the speed governor, the rotation is immediately cut off, and the connected steel cable immediately stops moving. The lever on the brake connected to the steel cable stops moving, while the car continues to fall. In this way, the lever moves upward relative to the car, driving the clamp on the emergency brake to lock the guide rail, forcing the car to continue moving. Because a large inertial force is generated during braking, it can cause injury to passengers in the car. Therefore, we propose a multi-directional anti-vibration self-locking buffer device for elevators to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a multi-directional anti-vibration self-locking buffer device for elevators. It uses the compression deformation of a spring damper to reduce inertial forces, while simultaneously bringing the upper and lower connecting seats infinitely close. The like poles of two magnetic blocks installed on the fixed seat correspond to each other, so when the magnetic blocks approach each other, they are repelled by magnetic force, thus providing a reverse force in the direction of compression of the spring damper. Therefore, through multi-directional anti-vibration, the inertial forces can be further reduced, improving the protection effect for passengers inside the elevator car.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A multi-directional anti-seismic self-locking buffer device for elevators includes an elevator car, a connecting beam fixedly connected to the bottom of the elevator car, and a lever-type emergency brake installed below the connecting beam. The bottom of the connecting beam is symmetrically equipped with an upper connecting seat, and a lower connecting seat is installed below the upper connecting seat.

[0009] The lower surface of the upper connecting seat and the upper surface of the lower connecting seat are each equipped with a fixing seat, and a magnetic block is installed on the inner side of the fixing seat.

[0010] Both sides of the fixed base are fixedly connected with connecting pins;

[0011] A damper and a spring shock absorber are respectively installed between the two longitudinally arranged connecting pin seats, and a pin for fixing the damper and the spring shock absorber is detachably connected to the connecting pin seat.

[0012] Furthermore, the same magnetic poles of the two magnetic blocks correspond to each other.

[0013] Furthermore, the bent portion of the connecting pin seat is welded with reinforcing ribs arranged in a right-angled triangular structure, and multiple reinforcing ribs are evenly spaced.

[0014] Furthermore, both ends of the damper and the spring shock absorber are welded with lifting rings.

[0015] Furthermore, the lifting ring is fixedly connected to the connecting pin seat via the pin shaft.

[0016] Furthermore, a mounting base is fixedly connected to the top of the lever-type emergency brake, and the mounting base is connected to the lower connecting base by bolts.

[0017] Furthermore, the lever arm on the lever-type emergency brake is connected to the steel wire rope connecting the elevator car.

[0018] 3. Beneficial effects

[0019] Compared with existing technologies, the advantages of this utility model are:

[0020] (1) In this scheme, the clamp on the lever-type emergency brake grips the guide rail for emergency braking. During the braking process, the elevator car will generate a downward inertial force, which will compress and deform the spring shock absorber installed between the upper and lower connecting seats to reduce the inertial force. At the same time, the upper and lower connecting seats will be brought infinitely close. The same magnetic poles of the two magnetic blocks installed on the fixed seat correspond to each other. Therefore, when the magnetic blocks are close, they will be repelled by magnetic force, which will give the spring shock absorber a reverse force in the direction of compression. Therefore, the inertial force can be further reduced through multi-directional shock resistance, which improves the protection effect for passengers inside the elevator car.

[0021] (2) In this scheme, the active end of the damper is compressed to reduce the energy transfer caused by vibration, impact or other forms of motion, thereby improving the energy absorption effect and avoiding the situation where the elevator car jumps up and down due to the rebound force of the spring damper, thus ensuring the overall stability of the elevator car during the buffering process. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the upper connecting seat and the lower connecting seat of this utility model;

[0024] Figure 3 This is a schematic diagram of the connecting pin seat structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the damper and spring shock absorber structure of this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. Elevator car; 2. Connecting beam; 3. Lever-type emergency brake; 4. Upper connecting seat; 5. Lower connecting seat; 6. Fixed seat; 7. Magnetic block; 8. Connecting pin seat; 9. Reinforcing rib; 10. Pin shaft; 11. Damper; 12. Spring shock absorber; 13. Lifting ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Example:

[0030] Please see Figure 1-4 An elevator multi-directional anti-vibration self-locking buffer device includes an elevator car 1, a connecting beam 2 fixedly connected to the bottom of the elevator car 1, and a lever-type emergency brake 3 installed below the connecting beam 2. An upper connecting seat 4 is symmetrically installed at the bottom of the connecting beam 2, and a lower connecting seat 5 is installed below the upper connecting seat 4.

[0031] A fixing seat 6 is installed on the lower surface of the upper connecting seat 4 and the upper surface of the lower connecting seat 5 respectively, and a magnetic block 7 is installed on the inner side of the fixing seat 6.

[0032] Both sides of the fixed base 6 are fixedly connected with connecting pin seats 8;

[0033] A damper 11 and a spring damper 12 are respectively installed between two longitudinally arranged connecting pin seats 8. A pin 10 for fixing the damper 11 and the spring damper 12 is detachably connected to the connecting pin seat 8.

[0034] It should be noted that when the multi-directional anti-vibration self-locking buffer device of this elevator is in use, if the elevator car 1 falls suddenly due to a malfunction, the clamp on the lever-type emergency brake 3 will hold the guide rail for emergency braking. During the braking process, the elevator car 1 will generate a downward inertial force, which will compress and deform the spring shock absorber 12 installed between the upper connecting seat 4 and the lower connecting seat 5 to reduce the inertial force. At the same time, the upper connecting seat 4 and the lower connecting seat 5 will be brought infinitely close. The same magnetic poles of the two magnetic blocks 7 installed on the fixed seat 6 correspond to each other. Therefore, when the magnetic blocks 7 are close, they will repel each other with magnetic force, which will give the spring shock absorber 12 a reverse force in the direction of compression. Therefore, the multi-directional anti-vibration can further reduce the inertial force and improve the protection effect for the passengers inside the elevator car 1.

[0035] By compressing the movable end of the damper 11, the energy transfer caused by vibration, impact or other forms of motion is reduced, thereby improving the energy absorption effect and preventing the elevator car 1 from jumping up and down due to the rebound force of the spring damper 12, thus ensuring the overall stability of the elevator car 1 during the buffering process.

[0036] like Figure 2 , Figure 3 As shown, the like magnetic poles of the two magnetic blocks 7 correspond to each other;

[0037] It should be noted that the same magnetic poles of the two magnetic blocks 7 installed on the fixed base 6 correspond to each other. Therefore, when the magnetic blocks 7 approach each other, they are repelled by magnetic force, which gives the spring shock absorber 12 a reverse force in the direction of compression. Thus, the inertial force can be further reduced by multi-directional shock resistance.

[0038] like Figure 3 , Figure 4 As shown, the bent part of the connecting pin seat 8 is welded with a reinforcing rib 9 arranged in a right-angled triangle structure, and multiple reinforcing ribs 9 are arranged at equal intervals. Both ends of the damper 11 and the spring shock absorber 12 are welded with lifting rings 13, and the lifting rings 13 are fixedly connected to the connecting pin seat 8 through the pin shaft 10.

[0039] It should be noted that after the lifting ring 13 is fixed to the connecting pin seat 8 by the pin 10, the reinforcing rib 9 is used to enhance the strength, rigidity and torsional resistance of the bent part of the connecting pin seat 8. This can overcome the product distortion caused by uneven stress due to the difference in wall thickness of the connecting pin seat 8, thereby increasing the strength of the mating surface.

[0040] like Figure 2 As shown, a mounting base is fixedly connected to the top of the lever-type emergency brake 3, and the mounting base is connected to the lower connecting base 5 by bolts;

[0041] It should be noted that this facilitates the installation and fixation of the lever-type emergency brake 3.

[0042] The lever arm on the lever-type emergency brake 3 is connected to the steel wire rope connecting the elevator car 1.

[0043] It should be noted that after the steel cable connected to the elevator car 1 stops moving, the lever connected to the steel cable on the lever-type emergency brake 3 also stops moving synchronously, while the car continues to fall. As a result, the lever will move upward relative to the car, driving the clamp on the emergency brake to lock the guide rail and achieve braking.

[0044] In use: When the elevator car 1 malfunctions and falls suddenly, the clamps on the lever-type emergency brake 3 hold the guide rail for emergency braking. During the braking process, the elevator car 1 will generate a downward inertial force, which will compress and deform the spring shock absorber 12 installed between the upper connecting seat 4 and the lower connecting seat 5 to reduce the inertial force. At the same time, the upper connecting seat 4 and the lower connecting seat 5 will be brought closer together. The same magnetic poles of the two magnetic blocks 7 installed on the fixed seat 6 correspond to each other. Therefore, when the magnetic blocks 7 are close together, they will repel each other with magnetic force, which will give the spring shock absorber 12 a reverse force in the direction of compression. Therefore, through multi-directional shock resistance, the inertial force can be further reduced, and the protection effect for the passengers inside the elevator car 1 can be improved.

[0045] The damper 11 is compressed by its movable end, which reduces the energy transfer caused by vibration, impact or other forms of motion, thereby improving the energy absorption effect and preventing the elevator car 1 from jumping up and down due to the rebound force of the spring damper 12.

[0046] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A multi-directional anti-seismic self-locking buffer device for an elevator, comprising an elevator car (1), a connecting beam (2) fixedly connected to the bottom of the elevator car (1), and a lever-type emergency brake (3) installed below the connecting beam (2), characterized in that: The bottom of the connecting beam (2) is symmetrically provided with an upper connecting seat (4), and the lower surface of the upper connecting seat (4) is correspondingly provided with a lower connecting seat (5); The lower surface of the upper connecting seat (4) and the upper surface of the lower connecting seat (5) are correspondingly provided with a fixing seat (6), and the inner side of the fixing seat (6) is provided with a magnetic block (7); The two sides of the fixing seat (6) are fixedly connected with a connecting pin seat (8); Two longitudinally arranged connecting pin seats (8) are respectively provided with a damper (11) and a spring shock absorber (12), and the connecting pin seat (8) is detachably connected with a pin shaft (10) for fixing the damper (11) and the spring shock absorber (12).

2. The multi-directional anti-seismic self-locking buffer device for elevator according to claim 1, characterized in that: The same magnetic poles between the two magnetic blocks (7) correspond to each other.

3. The multi-directional anti-seismic self-locking buffer device for elevator according to claim 1, characterized in that: The bending part of the connecting pin seat (8) is welded with a reinforcing rib (9) arranged in a right triangle structure, and the reinforcing rib (9) is equidistantly provided with a plurality of reinforcing ribs.

4. The multi-directional anti-seismic self-locking buffer device for elevator according to claim 1, characterized in that: The two ends of the damper (11) and the spring shock absorber (12) are welded with a lifting ring (13).

5. The multi-directional anti-shock self-locking buffer device for elevator according to claim 4, characterized in that: The lifting ring (13) is fixedly connected with the connecting pin seat (8) through the pin shaft (10).

6. The multi-directional anti-shock self-locking buffer device for elevator according to claim 1, characterized in that: The top of the lever type emergency brake (3) is fixedly connected with a mounting seat, and the mounting seat is connected with the lower connecting seat (5) through bolts.

7. The multi-directional anti-shock self-locking buffer device for elevator according to claim 1, characterized in that: The lever arm of the lever type emergency brake (3) is connected with the steel wire rope connected with the elevator car (1).

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