Elevator buffer protection device

By designing a combined buffer mechanism of multi-layer springs and support rods, the problems of instability and short lifespan of elevator buffer devices were solved, achieving stable and safe landing of the elevator and extending the service life of the device.

CN223779733UActive Publication Date: 2026-01-09ZHEJIANG FEIYA ELEVATOR
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Patent Information

Application Number
CN202520643391.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-01-09
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

Existing elevator buffer devices lack a stable graded buffer mechanism, resulting in unstable elevator landing, low safety factor, and short device lifespan.

Method used

An elevator buffer protection device was designed, which includes an auxiliary buffer mechanism and a graded buffer mechanism. Through the combination of multiple springs and support rods, the force of the elevator is gradually decomposed, and the elastic deformation of the multiple springs is used for buffering and degradation.

Benefits of technology

This ensures a smooth landing for the elevator, improves safety and extends the lifespan of the device, and prevents damage to components due to overload.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of buffering protection, in particular to an elevator buffering protection device which comprises an abutting plate, auxiliary buffering mechanisms are fixedly arranged on the two sides of the bottom end of the abutting plate, and each auxiliary buffering mechanism comprises a first spring, a supporting rod, a base table and a movable groove. When an elevator falls on the sponge cushion, the abutting plate can move downwards, the movable rods on the two sides of the fixing part expand outwards along with extrusion, due to the fact that the other ends of the movable rods are movably connected with the attachment part, the installation blocks can move towards the two ends on the fixing supporting rod along with expansion of the movable rods, and due to the fact that the second springs are arranged on the two sides of the fixing supporting rod, the fixing supporting rod can be fixed. The device is provided with a stable graded buffering mechanism, the acting force applied to the elevator can be effectively degraded, the acting force is dispersed to the two movable rods to be gradually degraded, damage to different degrees caused by the fact that all the parts bear large force is avoided, and the service life of the elevator is prolonged. And the service life of the device is greatly prolonged.
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Description

Technical Field

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

[0002] With the rapid development of high-rise buildings in my country, elevators, as an effective means of transportation, are being used more and more widely. However, elevator accidents have occurred frequently in recent years, causing significant casualties. One of the reasons is the inadequate design of existing elevator pit buffer devices. When the elevator car or counterweight loses control, the car cannot stop and falls directly from a height at high speed to the bottom of the elevator shaft, impacting the buffer device located in the pit. Therefore, the quality of the buffer device design is directly related to people's safety.

[0003] As disclosed in announcement number CN 205367386 U, an elevator buffer protection device is provided with elastic rubber columns on both sides of the buffer plate. The elastic rubber columns are arranged alternately in pairs and fixed with bolts. The elastic rubber columns are made of EPDM rubber, which can improve the compressive strength of the buffer plate. The interior of the elastic support column is honeycomb. This device does not have a stable graded buffer mechanism and cannot effectively degrade the force applied by the elevator, distributing the force to the two moving rods for gradual degradation. The components may suffer varying degrees of damage due to the large force they bear, greatly reducing the service life of the device. Without the setting of an auxiliary buffer mechanism, it cannot take into account the elastic buffer on both sides of the buffer plate, resulting in an unstable landing of the elevator and a lack of safety. Utility Model Content

[0004] The purpose of this invention is to provide an elevator buffer protection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An elevator buffer protection device includes a stop plate. An auxiliary buffer mechanism is fixedly arranged on both sides of the bottom end of the stop plate. The auxiliary buffer mechanism includes a first spring, a support rod, a base platform, and a movable groove. A plurality of first springs are fixedly arranged on both sides of the bottom end of the stop plate. A support rod is movably arranged inside the first spring. A base platform is fixedly arranged on the other side of the first spring. A movable groove is opened on the upper surface of the base platform near the first spring. The movable groove is movably connected to the support rod.

[0007] A graded buffer mechanism is fixedly installed at the bottom end of the abutment plate. The graded buffer mechanism includes a fixing component, a movable rod, an attachment component, a mounting block, a fixed support rod, and a second spring. Two fixing components are fixedly installed at the bottom end of the abutment plate. Movable rods are movably installed on both sides of the bottom end of the fixing components. An attachment component is movably installed at the other end of the movable rod. A mounting block is fixedly installed at the bottom end of the attachment component. A fixed support rod is movably installed inside the mounting block. A second spring is fixedly installed on both sides of the outside of the fixed support rod. One end of the second spring is fixedly connected to the base platform, and the other end of the second spring is fixedly connected to the mounting block.

[0008] Preferably, a sponge pad is fixedly provided at the top of the support plate, which can reduce wear and tear between the elevator and the support plate.

[0009] Preferably, a fixing plate is fixedly provided on the top of the base platform near the first spring, and the fixing plate can be used to extend the rod.

[0010] Preferably, the top of the fixed plate is movably provided with several positioning screws, which can be used to stably fix the fixed plate on the base platform.

[0011] Preferably, a telescopic rod is fixedly installed at the top of the fixed plate, and the telescopic rod, together with the third spring, can effectively buffer the two sides of the abutment plate.

[0012] Preferably, a third spring is fixedly installed around the top of the telescopic rod. The top of the third spring is fixedly connected to both sides of the bottom of the abutment plate. The third spring utilizes elastic deformation to effectively buffer and reduce the force applied by the elevator, thereby improving its safety factor.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This elevator buffer protection device, when the elevator lands on a sponge pad, causes the stop plate to move downwards. The movable rods on both sides of the fixed component expand outwards under pressure. Since the other end of the movable rod is movably connected to the attachment component, the mounting block also moves to both ends on the fixed support rod as the movable rod expands. Because the fixed support rod has second springs on both sides, the mounting block compresses the second springs, causing them to undergo elastic deformation, thus elastically buffering and degrading the applied force. While the bottom of the stop plate provides pressure buffering, its sides also provide auxiliary buffering and degradation. The first springs on both sides of the bottom of the stop plate undergo elastic deformation under pressure, causing the bottom of the support rod to movably connect with the movable groove. Combined with the assistance of the third spring and the telescopic rod, the bottom of the stop plate can also achieve effective elastic buffering on both sides.

[0015] This elevator buffer protection device features a stable, tiered buffer mechanism that effectively degrades the force applied to the elevator. The force is distributed to two moving rods for gradual degradation, preventing damage to components caused by excessive force and significantly extending the device's lifespan. The auxiliary buffer mechanism also provides elastic cushioning on both sides of the landing plate, ensuring a smooth landing and guaranteeing the stability and safety of the elevator descent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal perspective structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the installation of the step-by-step buffer structure of this utility model;

[0019] Figure 4 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Support plate; 2. First spring; 3. Support rod; 4. Base platform; 5. Movable groove; 6. Fixing component; 7. Movable rod; 8. Attachment component; 9. Mounting block; 10. Fixed support rod; 11. Second spring; 12. Sponge pad; 13. Fixing plate; 14. Positioning screw; 15. Telescopic rod; 16. Third spring. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0023] An elevator buffer protection device includes a stop plate 1. Auxiliary buffer mechanisms are fixedly installed on both sides of the bottom end of the stop plate 1. The auxiliary buffer mechanisms include a first spring 2, a support rod 3, a base platform 4, and a movable groove 5. A plurality of first springs 2 are fixedly installed on both sides of the bottom end of the stop plate 1. The support rod 3 is movably installed inside the first spring 2. The base platform 4 is fixedly installed on the other side of the first spring 2. The upper surface of the base platform 4 is provided with a movable groove 5 on the side near the first spring 2. The movable groove 5 is movably connected to the support rod 3.

[0024] A graded buffer mechanism is fixedly installed at the bottom end of the abutment plate 1. The graded buffer mechanism includes a fixing component 6, a movable rod 7, an attachment component 8, a mounting block 9, a fixed support rod 10, and a second spring 11. Two fixing components 6 are fixedly installed at the bottom end of the abutment plate 1. Movable rods 7 are movably installed on both sides of the bottom end of the fixing components 6. An attachment component 8 is movably installed at the other end of the movable rod 7. A mounting block 9 is fixedly installed at the bottom end of the attachment component 8. A fixed support rod 10 is movably installed inside the mounting block 9. A second spring 11 is fixedly installed on both sides of the outside of the fixed support rod 10. One end of the second spring 11 is fixedly connected to the base platform 4, and the other end of the second spring 11 is fixedly connected to the mounting block 9.

[0025] In this embodiment, preferably, a sponge pad 12 is fixedly provided at the top of the support plate 1. The sponge pad can reduce the wear and tear between the elevator and the support plate.

[0026] In this embodiment, preferably, a fixing plate 13 is fixedly provided on the top of the base platform 4 near the first spring 2. The fixing plate can be used to extend the rod.

[0027] In this embodiment, preferably, a plurality of positioning screws 14 are movably provided at the top of the fixed plate 13, and the fixed plate can be stably fixed on the base platform by means of the positioning threads.

[0028] In this embodiment, preferably, a telescopic rod 15 is fixedly provided at the top of the fixed plate 13. The telescopic rod, together with the third spring, can effectively buffer the two sides of the abutment plate.

[0029] In this embodiment, preferably, a third spring 16 is fixedly provided around the top of the telescopic rod 15. The top of the third spring 16 is fixedly connected to both sides of the bottom end of the abutment plate 1. The setting of the third spring utilizes elastic deformation to effectively buffer and reduce the force applied by the elevator, thereby improving its safety factor.

[0030] In this embodiment of the elevator buffer protection device, when the elevator lands on the sponge pad 12, the abutment 1 moves downward, and the movable rods 7 on both sides of the fixing member 6 expand outward with the compression. Since the other end of the movable rod 7 is movably connected to the attachment member 8, the mounting block 9 also moves to both ends on the fixed support rod 10 as the movable rod 7 expands. Since the fixed support rod 10 is provided with second springs 11 on both sides, the mounting block 9 compresses the second springs 11, causing them to undergo elastic deformation, thus elastically buffering and degrading the applied force. While the bottom end of the abutment 1 provides pressure buffering, its sides also provide auxiliary buffering and degradation. The first springs 11 on both sides of the bottom end of the abutment 1 provide pressure buffering. Spring 2 undergoes elastic deformation under compression, causing the bottom end of support rod 3 to connect movably with movable groove 5. Combined with the assistance of the third spring 16 and telescopic rod 15, effective elastic buffering is achieved on both sides of the bottom of the stop plate 1. This device features a stable, graded buffering mechanism that effectively degrades the force applied by the elevator, distributing the force to the two movable rods 7 for gradual degradation. This prevents damage to components caused by excessive force, significantly extending the device's lifespan. The auxiliary buffering mechanism, by balancing the elastic buffering on both sides of the stop plate 1, ensures a smooth elevator landing, guaranteeing the stability and safety of the elevator descent.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An elevator buffer protection device, characterized in that: Includes a stop plate (1), and auxiliary buffer mechanisms are fixedly provided on both sides of the bottom end of the stop plate (1). The auxiliary buffer mechanism includes a first spring (2), a support rod (3), a base platform (4) and a movable groove (5). Several first springs (2) are fixedly provided on both sides of the bottom end of the stop plate (1). The support rod (3) is movably provided inside the first spring (2). The base platform (4) is fixedly provided on the other side of the first spring (2). The movable groove (5) is opened on the upper surface of the base platform (4) near the first spring (2). The movable groove (5) is movably connected to the support rod (3). The bottom end of the abutment (1) is fixedly provided with a graded buffer mechanism. The graded buffer mechanism includes a fixing part (6), a movable rod (7), an attachment part (8), a mounting block (9), a fixed support rod (10), and a second spring (11). The bottom end of the abutment (1) is fixedly provided with two fixing parts (6). Movable rods (7) are movably provided on both sides of the bottom end of the fixing parts (6). An attachment part (8) is movably provided on the other end of the movable rod (7). A mounting block (9) is fixedly provided on the bottom end of the attachment part (8). A fixed support rod (10) is movably provided inside the mounting block (9). A second spring (11) is fixedly provided on both sides of the outside of the fixed support rod (10). One end of the second spring (11) is fixedly connected to the base platform (4), and the other end of the second spring (11) is fixedly connected to the mounting block (9).

2. The elevator buffer protection device according to claim 1, characterized in that: A sponge pad (12) is fixedly installed at the top of the abutment (1).

3. The elevator buffer protection device according to claim 1, characterized in that: A fixing plate (13) is fixedly installed on the top of the base platform (4) near the side of the first spring (2).

4. The elevator buffer protection device according to claim 3, characterized in that: The top of the fixed plate (13) is movably provided with several positioning screws (14).

5. The elevator buffer protection device according to claim 3, characterized in that: A telescopic rod (15) is fixedly installed at the top of the fixed plate (13).

6. The elevator buffer protection device according to claim 5, characterized in that: A third spring (16) is fixedly installed around the top of the telescopic rod (15), and the top of the third spring (16) is fixedly connected to both sides of the bottom end of the abutment plate (1).

Citation Information

Patent Citations

  • Elevator buffering protector

    CN205367386U