Lubricating system for elevator buffer
By designing a lubrication system in the elevator buffer, the lubricating oil can be sprayed evenly using the drive motor and transmission components, thus solving the problem of piston rod corrosion and improving the buffering effect and service life.
Patent Information
- Application Number
- CN202520274835.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-20
AI Technical Summary
The piston rod of the existing elevator buffer corrodes over time, affecting its mobility and cushioning effect.
A lubrication system was designed, in which a drive motor drives a transmission component to evenly spray lubricating oil pumped by a lubricating oil pump onto the piston rod surface to prevent rust.
It improves the smoothness of piston rod movement, enhances the buffering effect of the damper, and extends its service life.
Smart Images

Figure CN223823108U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of elevator buffer technology, specifically a lubrication system for elevator buffers. Background Technology
[0002] An elevator buffer is a safety device installed in the pit of the elevator shaft, directly below the car and counterweight. Its main function is to provide a final safety barrier in case of abnormal conditions during elevator operation, such as broken wire ropes, insufficient traction friction, insufficient braking force, or control system failure, causing the elevator to exceed the terminal floor (bottom or top floor). This prevents the elevator car or counterweight from directly impacting the bottom or top of the shaft, thus protecting the safety of passengers and equipment. Elevator buffers effectively reduce the impact force generated when the elevator suddenly stops or accelerates, ensuring the safety of the elevator and passengers and preventing unnecessary damage. Secondly, elevator buffers significantly reduce the noise generated when the elevator stops or accelerates, which is particularly important in quiet environments such as residential areas. Finally, by reducing impact force, elevator buffers protect various elevator components from damage caused by prolonged use, thereby extending the overall service life of the elevator. However, the piston rods of existing elevator buffers can corrode over time, affecting their movement and reducing their buffering effect. Utility Model Content
[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a lubrication system for elevator buffers, which effectively solves the problem that the surface of the piston rod of the existing elevator buffer will rust during long-term use, thereby affecting the movement of the piston rod and reducing the buffering effect.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a lubrication system for an elevator buffer, comprising an elevator buffer body, a storage box fixedly installed on one side of the elevator buffer body, an oil pump fixedly installed on the top of the storage box, a hose fixedly installed on the top of the oil pump, a movable ring fixedly installed at one end of the hose, a plurality of nozzles fixedly installed inside the movable ring, a piston rod movably installed inside the elevator buffer body, a support frame fixedly installed on the upper part of the other side of the elevator buffer body, a drive motor fixedly installed on one side of the support frame, a transmission component provided at the output end of the drive motor, the transmission component being connected to the movable ring in a transmission manner, and power being output to the movable ring through the transmission component when the drive motor is running.
[0005] Preferably, the transmission assembly includes a driving bevel gear, which is fixedly installed at the output end of the drive motor. A driven bevel gear is meshed with one side of the surface of the driving bevel gear. A shaft is fixedly installed in the middle of the driven bevel gear. Two bushings are rotatably installed on the surface of the shaft. The surfaces of the two bushings are fixedly connected to the elevator buffer body through support rods.
[0006] Preferably, worm gears are fixedly installed at both ends of the shaft, and rotating frames are rotatably installed at the ends of the two worm gears that are far apart from each other. Worm wheels are meshed with the upper part of the surface of the worm gears, and positioning frames are rotatably installed on one side of each of the two worm wheels. One end of each positioning frame is fixedly connected to the elevator buffer body, and one side of each of the two rotating frames is fixedly connected to the two positioning frames respectively. A rotating shaft is fixedly installed on the other side of each of the two worm wheels, and bearings are rotatably installed in the middle of the surface of each of the two rotating shafts. Both bearings are fixedly connected to the elevator buffer body.
[0007] Preferably, one end of each rotating shaft is rotatably mounted with a positioning seat, one end of each positioning seat is fixedly connected to the elevator buffer body, and transmission gears are fixedly mounted on the surfaces of the two rotating shafts and in the middle of the bearings and positioning seats. One side of each transmission gear is meshed with a rack, and a slider is fixedly mounted on the lower end of the two racks on the side closest to each other. Two sliding grooves are symmetrically opened on the surface of the elevator buffer body, and the two sliders are slidably mounted inside the two sliding grooves. The upper ends of the two racks on the side closest to each other are fixedly connected to the moving ring through a fixing head.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the operator starts the drive motor to drive the active bevel gear to rotate. When the active bevel gear rotates, it drives the shaft to rotate inside the two bushings through the driven bevel gear. When the shaft rotates, it drives the two worm gears to rotate along the two rotating frames. When the two worm gears rotate, they drive the two worm wheels to rotate along the two positioning frames. When the two worm wheels rotate, they drive the two rotating shafts to rotate along the two bearings and the two positioning seats. When the two rotating shafts rotate, they drive the two racks to move upward through the transmission gears.
[0009] When the racks move upward, they cause the slider to slide inside the groove, increasing the stability of the two racks during movement. When the two racks move upward, they also cause the moving ring to move upward through the fixed head. When the moving ring moves upward, it stretches the hose. At the same time as the moving ring moves upward, the oil pump sends the lubricating oil from the storage tank into the moving ring through the hose, and several nozzles inside spray the lubricating oil evenly onto the surface of the piston rod. This allows the elevator buffer to quickly and easily spray lubricating oil evenly onto the surface of the piston rod, preventing piston rod corrosion, ensuring the smooth movement of the piston rod, and thus improving the buffering effect. Attached Figure Description
[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0011] In the attached diagram:
[0012] Figure 1 This is a schematic diagram of the lubrication system structure for elevator buffers according to this utility model. Figure 1 ;
[0013] Figure 2 This is a schematic diagram of the lubrication system structure for elevator buffers according to this utility model. Figure 2 ;
[0014] Figure 3 This is a schematic diagram of the lubrication system structure for elevator buffers according to this utility model. Figure 3 ;
[0015] Figure 4 This is a schematic diagram of the lubrication system structure for elevator buffers according to this utility model. Figure 4 ;
[0016] Figure 5 This is a schematic diagram of the lubrication system structure for elevator buffers according to this utility model. Figure 5 ;
[0017] In the diagram: 1. Elevator buffer body; 2. Storage box; 3. Oil pump; 4. Hoses; 5. Moving ring; 6. Piston rod; 7. Support frame; 8. Drive motor; 9. Driving bevel gear; 10. Driven bevel gear; 11. Bushing; 12. Support rod; 13. Worm gear; 14. Rotating frame; 15. Worm wheel; 16. Positioning frame; 17. Rotating shaft; 18. Bearing; 19. Positioning seat; 20. Transmission gear; 21. Rack; 22. Fixed head; 23. Slider; 24. Slide groove; 25. Shaft. 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 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.
[0019] Depend on Figures 1 to 5The present invention includes an elevator buffer body 1, a storage box 2 fixedly installed on one side of the elevator buffer body 1, an oil pump 3 fixedly installed on the top of the storage box 2, a hose 4 fixedly installed on the top of the oil pump 3, a movable ring 5 fixedly installed at one end of the hose 4, a plurality of nozzles fixedly installed inside the movable ring 5, a piston rod 6 movably installed inside the elevator buffer body 1, a support frame 7 fixedly installed on the upper part of the other side of the elevator buffer body 1, a drive motor 8 fixedly installed on one side of the support frame 7, a transmission component provided at the output end of the drive motor 8, the transmission component being connected to the movable ring 5 for transmission, and the drive motor 8 outputting power to the movable ring 5 through the transmission component when it is running.
[0020] In use, the operator starts the drive motor 8 to drive the transmission component. When the transmission component is running, it moves the moving ring 5 upward. When the moving ring 5 moves upward, it stretches the hose 4. At the same time as the moving ring 5 moves upward, the oil pump 3 sends the lubricating oil inside the storage tank 2 into the moving ring 5 through the hose 4. Several nozzles inside then spray the lubricating oil evenly onto the surface of the piston rod 6. This allows the elevator buffer to quickly and easily spray lubricating oil evenly onto the surface of the piston rod 6, preventing the piston rod 6 from rusting, ensuring the smooth movement of the piston rod 6, and thus improving the buffering effect.
[0021] The transmission assembly includes a driving bevel gear 9, which is fixedly mounted on the output end of the drive motor 8. A driven bevel gear 10 is meshed with one side of the surface of the driving bevel gear 9. A shaft 25 is fixedly mounted in the middle of the driven bevel gear 10. Two bushings 11 are rotatably mounted on the surface of the shaft 25. The surfaces of the two bushings 11 are fixedly connected to the elevator buffer body 1 via support rods 12. Worms 13 are fixedly mounted at both ends of the shaft 25. Rotating frames 14 are rotatably mounted at the ends of the two worms 13 that are far apart from each other. Worm wheels 15 are meshed with the upper part of the surface of the worms 13. Positioning frames 16 are rotatably mounted on one side of each of the two worm wheels 15. One end of each positioning frame 16 is fixedly connected to the elevator buffer body 1. One side of each of the two rotating frames 14 is fixedly connected to the two positioning frames 16 respectively. On the other side, a rotating shaft 17 is fixedly installed. A bearing 18 is rotatably installed in the middle of the surface of each of the two rotating shafts 17. Both bearings 18 are fixedly connected to the elevator buffer body 1. A positioning seat 19 is rotatably installed at one end of each of the two rotating shafts 17. One end of each positioning seat 19 is fixedly connected to the elevator buffer body 1. A transmission gear 20 is fixedly installed on the surface of each of the two rotating shafts 17 and in the middle of the bearings 18 and the positioning seat 19. A rack 21 is meshed on one side of each of the two transmission gears 20. A slider 23 is fixedly installed at the lower end of each rack 21 on the side closest to each other. Two sliding grooves 24 are symmetrically opened on the surface of the elevator buffer body 1. The two sliders 23 are slidably installed inside the two sliding grooves 24. The upper end of each rack 21 on the side closest to each other is fixedly connected to the moving ring 5 through a fixing head 22.
[0022] The operator starts the drive motor 8, which drives the active bevel gear 9 to rotate. When the active bevel gear 9 rotates, it drives the shaft 25 to rotate inside the two bushings 11 through the driven bevel gear 10. When the shaft 25 rotates, it drives the two worm gears 13 to rotate along the two rotating frames 14. When the two worm gears 13 rotate, they drive the two worm wheels 15 to rotate along the two positioning frames 16. When the two worm wheels 15 rotate, they drive the two rotating shafts 17 to rotate along the two bearings 18 and the two positioning seats 19. When the two rotating shafts 17 rotate, they drive the two racks 21 to move upward through the transmission gear 20. When the racks 21 move upward, they drive the slider 23 to slide inside the slide groove 24, which increases the stability of the two racks 21 when they move. When the two racks 21 move upward, they drive the moving ring 5 to move upward through the fixed head 22.
Claims
1. A lubrication system for an elevator buffer, comprising an elevator buffer body (1), characterized in that: A storage box (2) is fixedly installed on one side of the elevator buffer body (1). An oil pump (3) is fixedly installed on the top of the storage box (2). A hose (4) is fixedly installed on the top of the oil pump (3). A moving ring (5) is fixedly installed at one end of the hose (4). Several nozzles are fixedly installed inside the moving ring (5). A piston rod (6) is movably installed inside the elevator buffer body (1). A support frame (7) is fixedly installed on the upper part of the other side of the elevator buffer body (1). A drive motor (8) is fixedly installed on one side of the support frame (7). A transmission component is provided at the output end of the drive motor (8). The transmission component is connected to the moving ring (5) in a transmission manner. When the drive motor (8) is running, it outputs power to the moving ring (5) through the transmission component.
2. The lubrication system for an elevator buffer according to claim 1, characterized in that: The transmission assembly includes a drive bevel gear (9), which is fixedly installed at the output end of the drive motor (8). A driven bevel gear (10) is meshed on one side of the surface of the drive bevel gear (9). A shaft (25) is fixedly installed in the middle of the driven bevel gear (10). Two bushings (11) are rotatably installed on the surface of the shaft (25). The surfaces of the two bushings (11) are fixedly connected to the elevator buffer body (1) through a support rod (12).
3. A lubrication system for an elevator buffer according to claim 2, characterized in that: Both ends of the shaft (25) are fixedly installed with worm gears (13). The ends of the two worm gears (13) that are far apart from each other are rotatably installed with rotating brackets (14). The upper part of the surface of the worm gears (13) is meshed with worm wheels (15). The side of the two worm wheels (15) is rotatably installed with positioning brackets (16). One end of the positioning brackets (16) is fixedly connected to the elevator buffer body (1). The side of the two rotating brackets (14) is fixedly connected to the two positioning brackets (16) respectively. The other side of the two worm wheels (15) is fixedly installed with rotating shafts (17). The middle part of the surface of the two rotating shafts (17) is rotatably installed with bearings (18). The two bearings (18) are fixedly connected to the elevator buffer body (1).
4. A lubrication system for an elevator buffer according to claim 3, characterized in that: One end of each of the rotating shafts (17) is rotatably mounted with a positioning seat (19). One end of each of the two positioning seats (19) is fixedly connected to the elevator buffer body (1). Transmission gears (20) are fixedly mounted on the surfaces of the two rotating shafts (17) and in the middle of the bearings (18) and the positioning seats (19). One side of each of the two transmission gears (20) is meshed with a rack (21). The lower ends of the racks (21) on the side closer to each other are fixedly mounted with sliders (23). Two sliding grooves (24) are symmetrically opened on the surface of the elevator buffer body (1). The two sliders (23) are slidably mounted inside the two sliding grooves (24). The upper ends of the racks (21) on the side closer to each other are fixedly connected to the moving ring (5) through a fixing head (22).