Elevator anti-falling protection mechanism
By setting limit columns and reinforcement ribs on the safety clamp frame of the elevator anti-fall protection mechanism, and using buffer springs to reduce impact force, the problem of loose connection between bolts and nuts after long-term use of the elevator anti-fall protection mechanism is solved, the fixing stability of the safety clamps and the safe operation of the elevator is improved, the occurrence of fall accidents is prevented, and the service life of the elevator is extended.
Patent Information
- Application Number
- CN202421870821.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-05
AI Technical Summary
After a long time of use, the existing elevator anti-fall protection mechanism may loosen due to factors such as vibration and temperature changes, resulting in unstable fixation of the safety pliers, unable to trigger or clamp the guide rails in time, and unable to prevent a fall accident in the elevator car.
By setting limit columns and reinforcement ribs on the safety clamp frame of the elevator anti-fall protection mechanism, the four-corner position of the frame is defined and the connection between the frame and the elevator is ensured to be stable. At the same time, the buffering spring is used to provide cushioning when the brake pads come into contact with the guide rails to reduce impact force.
It effectively avoids the problem of loose connection between bolts and nuts, improves the fixing stability of safety pliers, ensures the safe operation of the elevator, and can promptly trigger and clamp the guide rails in an emergency, prevents the occurrence of an accident of falling elevator car, and reduces the damage to components caused by the sudden stop of the elevator to extend the service life of the elevator.
Smart Images
Figure CN222947898U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of elevator anti-falling, and in particular relates to an elevator anti-falling protection mechanism. Background Art
[0002] Elevator anti-fall protection mechanisms are a series of safety devices installed on elevators. They are designed to prevent the elevator car from accidentally falling during operation, thereby ensuring the safety of passengers and equipment. These protection mechanisms include but are not limited to speed limiters, safety clamps, buffers, elevator speed monitors, etc. They can act quickly when abnormal elevator speed, car imbalance or other potential dangerous situations are detected, and slow down or stop the elevator through mechanical or electronic means to avoid falling accidents.
[0003] Although the elevator car and the safety clamp of the elevator anti-fall protection mechanism are usually fixed by bolts, this fixing method has certain problems after long-term use. Specifically, the connection between the bolts and nuts may become loose due to long-term influence of factors such as vibration and temperature changes. This looseness will reduce the fixing stability of the safety clamp, thereby affecting the safe operation of the elevator. In extreme cases, if the fixing of the safety clamp is unstable, it may cause the safety clamp to fail to be triggered in time in an emergency or fail to effectively clamp the guide rail, thereby failing to prevent the elevator car from falling. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an elevator anti-fall protection mechanism to solve the problem that the current anti-fall protection mechanism proposed in the above background technology is affected by factors such as vibration and temperature changes for a long time, and the connection between the bolt and the nut may become loose. This looseness will reduce the fixing stability of the safety clamp, thereby affecting the safe operation of the elevator. In extreme cases, if the fixing of the safety clamp is unstable, the safety clamp may not be triggered in time in an emergency or the guide rail cannot be effectively clamped, thereby failing to prevent the elevator car from falling.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator anti-fall protection mechanism, comprising a frame, a slide rail is fixedly connected to the lower end of the front surface of the frame, a slide groove is provided on the inner surface of the slide rail, a slider is slidably connected inside the slide groove, two sliders are provided, brake pads are fixedly connected to the inner sides of the two sliders, limiting columns are welded to the four corners of the rear surface of the frame, mounting blocks are welded to the four corners of the two side surfaces of the frame, fixing screw holes are penetrated on the surface of the mounting blocks, a connecting plate is fixedly connected to the middle part of the rear surface of the frame, reinforcing ribs are fixedly connected to the surface of the connecting plate, and a plurality of reinforcing ribs are provided.
[0006] Preferably, the slider and the brake pad are fixedly connected to each other via fixing bolts.
[0007] Preferably, the slide rail is fixedly connected to the front surface of the frame by fixing bolts.
[0008] Preferably, a fixing block is fixedly connected to the upper end of the slide rail.
[0009] Preferably, the side surfaces of the slider are connected to each other through a traction wire rope and an elevator speed limiter.
[0010] Preferably, a buffer rod is fixedly connected to the upper end of the front surface of the frame.
[0011] Preferably, a buffer spring is provided on the surface of the buffer rod.
[0012] Compared with the prior art, the utility model provides an elevator anti-fall protection mechanism, which has the following beneficial effects:
[0013] 1. The utility model sets limit columns and reinforcing ribs and other structures. When the frame of the safety clamp of the elevator anti-fall protection mechanism is installed, the four corners of the frame are limited by the limit columns. At the same time, the reinforcing ribs on the surface of the connecting plate ensure the stability of the connection between the frame and the elevator. At the same time, the stability of the overall structure of the elevator anti-fall protection mechanism is also ensured, effectively avoiding the current anti-fall protection mechanism being affected by vibration, temperature changes and other factors for a long time, and the connection between the bolts and nuts may become loose. This looseness will reduce the fixing stability of the safety clamp, thereby affecting the safe operation of the elevator. In extreme cases, if the fixing of the safety clamp is unstable, the safety clamp may not be triggered in time in an emergency or the guide rail cannot be effectively clamped, thereby failing to prevent the elevator car from falling.
[0014] 2. The utility model provides a buffer rod and a buffer spring. The buffer spring can provide a certain buffering effect at the moment when the brake pad contacts the guide rail, reduce the impact force, and protect the safety of passengers. At the same time, the buffer spring can also reduce the damage to various components caused by the sudden stop of the elevator, extend the service life of the elevator, and make the braking process of the safety clamp smoother, avoiding unnecessary damage to the car and passengers due to severe vibration. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0016] Figure 1This is an axonometric diagram of an elevator anti-fall protection mechanism proposed by the utility model;
[0017] Figure 2 The utility model provides an elevator anti-fall protection mechanism Figure 1 The enlarged view of point A in the middle;
[0018] Figure 3 This is a front view of an elevator anti-fall protection mechanism proposed by the utility model;
[0019] Figure 4 A schematic diagram of the rear side of an elevator anti-fall protection mechanism proposed by the utility model;
[0020] Figure 5 This is a rear view of an elevator anti-fall protection mechanism proposed by the utility model;
[0021] In the figure: 1. frame; 2. mounting block; 3. fixing screw hole; 4. limiting column; 5. connecting plate; 6. reinforcing rib; 7. fixing block; 8. slide rail; 9. slide groove; 10. slider; 11. fixing bolt; 12. brake pad; 13. buffer rod; 14. buffer spring. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-5The utility model provides a technical solution: an elevator anti-fall protection mechanism, including a frame 1, a slide rail 8 is fixedly connected to the lower end of the front surface of the frame 1, a slide groove 9 is provided on the inner surface of the slide rail 8, a slider 10 is slidably connected inside the slide groove 9, two sliders 10 are provided, and brake pads 12 are fixedly connected to the inner sides of the two sliders 10, the four corners of the rear surface of the frame 1 are welded and connected to the limiting columns 4, the four corners of the two side surfaces of the frame 1 are welded and connected to the mounting blocks 2, the surface of the mounting blocks 2 is penetrated with fixing screw holes 3, the middle part of the rear surface of the frame 1 is fixedly connected to the connecting plate 5, the connecting plate The surface of the connecting plate 5 is fixedly connected with a reinforcing rib 6, and a plurality of reinforcing ribs 6 are provided. Through the structures such as the limit columns 4 and the reinforcing ribs 6, when the frame 1 of the safety clamp of the elevator anti-fall protection mechanism is installed, the four corners of the frame 1 are limited by the limit columns 4. At the same time, the reinforcing ribs 6 on the surface of the connecting plate 5 ensure the stability of the connection between the frame 1 and the elevator, and also ensure the stability of the overall structure of the elevator anti-fall protection mechanism, effectively avoiding the current anti-fall protection mechanism from being affected by vibration, temperature changes and other factors for a long time, and the connection between the bolts and nuts may become loose. This looseness will reduce the fixing stability of the safety clamp, thereby affecting the safe operation of the elevator. In extreme cases, if the fixing of the safety clamp is unstable, the safety clamp may not be triggered in time or the guide rail cannot be effectively clamped in an emergency, thereby failing to prevent the elevator car from falling.
[0024] In the present invention, preferably, the slider 10 and the brake pad 12 are fixedly connected to each other via a fixing bolt 11 .
[0025] In the present invention, preferably, the slide rail 8 is fixedly connected to the front surface of the frame 1 by means of fixing bolts 11 .
[0026] In the present invention, preferably, the upper end of the slide rail 8 is fixedly connected with a fixing block 7 .
[0027] In the present invention, preferably, the side surfaces of the slider 10 are connected to each other through a traction wire rope and an elevator speed governor.
[0028] In the present invention, preferably, a buffer rod 13 is fixedly connected to the upper end of the front surface of the frame 1 .
[0029] In the utility model, preferably, a buffer spring 14 is provided on the surface of the buffer rod 13. Through the provided buffer rod 13 and buffer spring 14, the buffer spring 14 can provide a certain buffering effect at the moment when the brake pad 12 contacts the guide rail, reduce the impact force, and protect the safety of passengers. At the same time, the buffer spring 14 can also reduce the damage to various components caused by the sudden stop of the elevator, extend the service life of the elevator, and make the braking process of the safety clamp smoother, avoiding unnecessary damage to the car and passengers due to severe vibration.
[0030] Working principle and use process of the utility model: When in use, first fix the frame 1 on the elevator car through the limit column 4 and the reinforcing rib 6 to ensure that the connection between the frame 1 and the elevator is stable. Then, fix the slide rail 8 on the front surface of the frame 1 through the fixing bolt 11, and slide the slider 10 in the slide groove 9 on the inner side of the slide rail 8. Then, fix the brake pad 12 on the inner side of the two sliders 10, and fix the slider 10 and the brake pad 12 to each other through the fixing bolt 11. Next, fix the buffer rod 13 to the upper end of the front surface of the frame 1, and set the buffer spring 14 on the surface of the buffer rod 13. Finally, the side surface of the slider 10 is connected to the elevator speed limiter through the traction wire rope, so that the elevator anti-fall protection mechanism can be adjusted in real time according to the running state of the elevator. When the elevator is overspeeding, the elevator speed limiter will be triggered, and the slider 10 will move quickly through the traction wire rope, and the brake pad 12 will contact the guide rail, generating a huge friction force to stop the car. At the same time, the buffer spring 14 provides a certain buffering effect at the moment when the brake pad 12 contacts the guide rail, reduces the impact force, protects the safety of passengers, reduces the damage to various components caused by the sudden stop of the elevator, and prolongs the service life of the elevator.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An elevator anti-fall protection mechanism, comprising a frame (1), characterized in that: A slide rail (8) is fixedly connected to the lower end of the front surface of the frame (1), a slide groove (9) is provided on the inner surface of the slide rail (8), a slider (10) is slidably connected inside the slide groove (9), two sliders (10) are provided, and brake pads (12) are fixedly connected to the inner sides of the two sliders (10), the four corners of the rear surface of the frame (1) are welded to limit columns (4), the four corners of the two side surfaces of the frame (1) are welded to mounting blocks (2), the surface of the mounting blocks (2) is penetrated by fixing screw holes (3), the middle part of the rear surface of the frame (1) is fixedly connected to a connecting plate (5), the surface of the connecting plate (5) is fixedly connected to a reinforcing rib (6), and a plurality of reinforcing ribs (6) are provided.
2. An elevator anti-fall protection mechanism according to claim 1, characterized in that: The slider (10) and the brake pad (12) are fixedly connected to each other via fixing bolts (11).
3. The elevator anti-fall protection mechanism according to claim 1, characterized in that: The slide rail (8) is fixedly connected to the front surface of the frame (1) via fixing bolts (11).
4. An elevator anti-fall protection mechanism according to claim 3, characterized in that: The upper end of the slide rail (8) is fixedly connected to a fixing block (7).
5. The elevator anti-fall protection mechanism according to claim 1, characterized in that: The side surfaces of the slider (10) are connected to each other via a traction steel wire rope and an elevator speed governor.
6. The elevator anti-fall protection mechanism according to claim 1, characterized in that: A buffer rod (13) is fixedly connected to the upper end of the front surface of the frame (1).
7. An elevator anti-fall protection mechanism according to claim 6, characterized in that: A buffer spring (14) is provided on the surface of the buffer rod (13).