Lifting protection mechanism for elevator
Through the motor-driven spur gear meshing and hydraulic system with universal joints, the angle and position adjustment of the hoist protective cover is achieved, which solves the problem that the existing protective shell structure cannot adapt to different sizes and angles, and improves the adaptability and stability of the protective mechanism.
Patent Information
- Application Number
- CN202422055992.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The protective shell for existing hoists has a single structure and cannot adapt to hoists of different sizes and angles, resulting in a decrease in practicality.
The motor-driven spur gear meshing system and hydraulic rods are used to match universal joints to achieve angle and position adjustment of the protective cover, and combine the hydraulic cylinder and worm gear system to enhance stability and adapt to elevators of different sizes and angles.
It improves the adaptability and stability of the protective mechanism, ensuring flexible adaptation and safety protection for different elevators.
Smart Images
Figure CN223060661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevators, in particular to a lifting protection mechanism for an elevator. Background Technique
[0002] An elevator is a device used for vertically lifting or lowering materials, and is widely used in industrial production, construction projects, mines and other fields. Since the elevator may face risks such as accidental shutdown, power failure or mechanical failure during operation, it is crucial to use a lifting protection mechanism. These protection mechanisms can brake in time in case of emergency to prevent the materials from falling, thus ensuring the safety of the operators. At the same time, they can also protect the equipment from mechanical damage caused by overload or overspeed, ensure the smooth lifting of the materials, and improve the production efficiency. In addition, the lifting protection mechanism also helps the elevator comply with relevant safety regulations and avoid being punished for non-compliance. In short, the lifting protection mechanism not only improves the safety and stability of the elevator, but also protects the equipment and materials, ensuring the smooth progress of the production process.
[0003] In most cases, the existing protection mechanisms use a protective shell of a single size to be installed outside the elevator. After the protective shell is stably installed by a fixed installation method, the protective effect is achieved. However, in the actual use process, since the sizes and use angles of elevators are mostly not uniformly designed, the existing protective shell of a single size cannot adapt to elevators of different sizes, which leads to a significant decrease in the practicability of the protection mechanism. Therefore, a lifting protection mechanism for an elevator is proposed to solve the above problems. Content of the Utility Model
[0004] In order to make up for the above deficiencies, the utility model provides a lifting protection mechanism for an elevator, aiming to improve the problem that the structural size of the protective shell adopted in the existing technology is relatively simple and the functionality is low, and thus it cannot meet the use requirements of different elevators, resulting in a decrease in the practicability of the protection structure.
[0005] To achieve the above object, the present utility model provides the following technical solutions: A lifting protection mechanism for a hoist, including a hoist body, on the outer side of the hoist body are provided symmetrically left and right movable frames, on the upper surfaces of the two movable frames are fixedly connected with brackets, on one side of the outer wall of one bracket is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first spur gear, on one side of the outer wall of the bracket is rotatably connected with a connecting frame, on one side of the outer wall of the connecting frame is fixedly connected with a second spur gear, the second spur gear is meshed and connected with the first spur gear, on one side of the outer wall of the connecting frame is fixedly connected with a fixed frame, on the upper surface of the fixed frame are fixedly connected with a plurality of L-shaped protective covers, between the two brackets is fixedly connected with a telescopic arm, on one side of the outer wall of the telescopic arm is fixedly connected with a hydraulic rod, the output end of the hydraulic rod is provided with a universal joint, and inside the universal joint is installed a connecting component for connecting the movement of the bracket.
[0006] Further, the connecting component includes a connecting plate, the connecting plate is rotatably connected inside the universal joint, on one side of the outer wall of the connecting plate is rotatably connected with a first hinge seat, and on one side of the outer wall of the first hinge seat is fixedly connected to one side of the outer wall of the bracket.
[0007] Further, on the upper surface of the movable frame is fixedly connected with a second hinge seat, inside the second hinge seat is rotatably connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected with a hinge block.
[0008] Further, inside the hinge block is fixedly connected with a limiting post, and the limiting post is slidably connected inside the fixed frame.
[0009] Further, on one side of the outer wall of the movable frame is fixedly connected with a fixed cover, on the upper surface of the fixed cover is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with a worm.
[0010] Further, inside the fixed cover is rotatably connected with a rotating shaft, on the outer wall of the rotating shaft is fixedly connected with a worm gear, and the worm gear is meshed and connected with the worm.
[0011] Further, inside the fixed cover is slidably connected with a sliding column, inside the sliding column is rotatably connected with a connecting rod, and one side of the connecting rod is fixedly connected to the outer wall of the rotating shaft.
[0012] Further, on the lower surface of the sliding column is fixedly connected with a base, and the worm is rotatably connected inside the fixed cover.
[0013] The present utility model has the following beneficial effects:
[0014] 1. In the present utility model, the first motor drives the first spur gear to mesh and rotate with the second spur gear, thereby causing the second spur gear to drive the connecting frame to rotate, so as to achieve the effect of driving the L-shaped protective cover on the outer wall of the fixed frame to rotate. Through the adjustment of the fixed frame, the adjustment effect for elevators at different angles can be achieved. At the same time, through the cooperation of the universal joint and the connecting component, the adjustment effect for elevators of different sizes can be achieved, thereby improving the practicability of the protection mechanism.
[0015] 2. In the present utility model, the hydraulic cylinder drives the limit post inside the hinge block to slide inside the fixed frame, so as to achieve the effect of facilitating the rotation angle support of the fixed frame. At the same time, the second motor drives the worm to mesh and rotate with the worm wheel, thereby causing the rotating shaft to drive the connecting rod to rotate, so as to achieve the effect of driving the base on the lower surface of the sliding column to contact the ground, thereby increasing the stability of the mechanism and improving the practicability of the protection structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a three-dimensional structural schematic diagram of a lifting protection mechanism for an elevator proposed by the present utility model;
[0017] Figure 2 is a partial structural schematic diagram of the universal joint of a lifting protection mechanism for an elevator proposed by the present utility model;
[0018] Figure 3 is a partial structural schematic diagram of the connecting frame of a lifting protection mechanism for an elevator proposed by the present utility model;
[0019] Figure 4 is a partial structural schematic diagram of the bracket of a lifting protection mechanism for an elevator proposed by the present utility model;
[0020] Figure 5 is Figure 4 the enlarged view at A in
[0021] LEGEND DESCRIPTION:
[0022] 1. Elevator body; 2. Moving frame; 3. Bracket; 4. First motor; 5. First spur gear; 6. Connecting frame; 7. Second spur gear; 8. Fixed frame; 9. L-shaped protective cover; 10. Telescopic arm; 11. Hydraulic rod; 12. Universal joint; 13. Connecting component; 1301. Connecting plate; 1302. First hinge seat; 14. Second hinge seat; 15. Hydraulic cylinder; 16. Hinge block; 17. Limit post; 18. Fixed cover; 19. Second motor; 20. Worm; 21. Rotating shaft; 22. Worm wheel; 23. Connecting rod; 24. Sliding column; 25. Base. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] Referring to Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the present utility model: a lifting protection mechanism for a hoist, including a hoist body 1, symmetrically arranged moving frames 2 are provided on the outer side of the hoist body 1, brackets 3 are fixedly connected to the upper surfaces of the two moving frames 2, a first motor 4 is fixedly connected to one side of the outer wall of a bracket 3, a first spur gear 5 is fixedly connected to the output end of the first motor 4, a connecting frame 6 is rotatably connected to one side of the outer wall of the bracket 3, a second spur gear 7 is fixedly connected to one side of the outer wall of the connected frame 6, the second spur gear 7 is meshed and connected with the first spur gear 5, a fixing frame 8 is fixedly connected to one side of the outer wall of the connecting frame 6, a plurality of L-shaped protective covers 9 are fixedly connected to the upper surface of the fixing frame 8, a telescopic arm 10 is fixedly connected between the two brackets 3, a hydraulic rod 11 is fixedly connected to one side of the outer wall of the telescopic arm 10, a universal joint 12 is arranged at the output end of the hydraulic rod 11, and a connecting component 13 for connecting the movement of the bracket 3 is installed inside the universal joint 12; the connecting component 13 includes a connecting plate 1301, the connecting plate 1301 is rotatably connected inside the universal joint 12, a first hinge seat 1302 is rotatably connected to one side of the outer wall of the connecting plate 1301, and one side of the outer wall of the first hinge seat 1302 is fixedly connected to one side of the outer wall of the bracket 3.
[0025] Specifically, when the moving frame 2 is pushed to the outside of the bucket elevator body 1, by starting the first motor 4, the first motor 4 drives the first spur gear 5 and the second spur gear 7 to mesh with each other, driving the second spur gear 7 to rotate; this rotation further drives the connecting frame 6 to rotate, and the rotation of the connecting frame 6 realizes the adjustment of the L-shaped protective cover 9 on the outer wall of the fixing frame 8; the adjustment of the L-shaped protective cover 9 enables it to be flexibly adjusted according to hoists of different heights; at the same time, the hydraulic rod 11 is started, and through the drive of the hydraulic rod 11, the universal joint 12 moves, thereby driving the connecting plate 1301 to move accordingly; then through the telescopic action of the telescopic arm 10, the system can be accurately adjusted according to hoists of different sizes; this series of operations not only improves the adaptability of the protective cover, but also enhances the flexibility and adaptability of the entire system, effectively meeting the operation requirements of various hoists.
[0026] Referring to Figure 3 , Figure 4 and Figure 5, a hinge seat two 14 is fixedly connected to the upper surface of the moving frame 2. A hydraulic cylinder 15 is rotatably connected inside the hinge seat two 14. The output end of the hydraulic cylinder 15 is fixedly connected to a hinge block 16. A limiting column 17 is fixedly connected inside the hinge block 16. The limiting column 17 is slidably connected inside the fixed frame 8. A fixed cover 18 is fixedly connected to one side of the outer wall of the moving frame 2. A motor two 19 is fixedly connected to the upper surface of the fixed cover 18. The output end of the motor two 19 is fixedly connected to a worm 20. A rotating shaft 21 is rotatably connected inside the fixed cover 18. A worm gear 22 is fixedly connected to the outer wall of the rotating shaft 21. The worm gear 22 is meshed and connected with the worm 20. A sliding column 24 is slidably connected inside the fixed cover 18. A connecting rod 23 is rotatably connected inside the sliding column 24. One side of the connecting rod 23 is fixedly connected to the outer wall of the rotating shaft 21. A base 25 is fixedly connected to the lower surface of the sliding column 24. The worm 20 is rotatably connected inside the fixed cover 18.
[0027] Specifically, when the connecting frame 6 rotates, the hydraulic cylinder 15 is started simultaneously, so that the hydraulic cylinder 15 drives the limiting column 17 inside the hinge block 16 to perform limiting sliding inside the fixed frame 8. This action effectively supports the movement of the fixed frame 8, ensuring its stability and accuracy. When the adjustment of the moving frame 2 is completed, the motor two 19 is started. The motor two 19 drives the worm 20 to mesh with the worm gear 22, so that the rotating shaft 21 drives the connecting rod 23 to rotate. The rotation of the connecting rod 23 further pushes the sliding column 24 to perform limiting sliding inside the fixed cover 18. The movement of the sliding column 24 makes the base 25 on its lower surface contact the ground, thereby increasing the contact area of the mechanism and improving the overall stability. This series of precise actions and adjustments not only ensure the stability of the fixed frame 8, but also enhance the supporting effect of the base 25, ensuring the stable operation and efficient operation of the system.
[0028] Working principle: When in use, first push the moving frame 2 to the outside of the bucket elevator body 1. At this time, by starting the motor one 4, the motor one 4 drives the spur gear one 5 and the spur gear two 7 to mesh and rotate. At this time, through the rotation of the spur gear two 7, the effect of driving the connecting frame 6 to rotate is achieved. At this time, through the rotation of the connecting frame 6, the effect of driving the L-shaped protective cover 9 on the outer wall of the fixed frame 8 to rotate and adjust is achieved. At this time, through the adjustment of the L-shaped protective cover 9, the effect of adjusting according to elevators of different heights is achieved. At the same time, by starting the hydraulic rod 11, the hydraulic rod 11 drives the universal joint 12 to move, so as to achieve the effect of driving the connecting plate 1301 to move. At this time, through the telescoping of the telescopic arm 10, the effect of facilitating the adjustment according to elevators of different sizes is achieved;
[0029] Secondly, when the connecting frame 6 rotates, the hydraulic cylinder 15 is started at the same time. The limiting column 17 inside the hinge block 16 is driven by the hydraulic cylinder 15 to slide in a limited way inside the fixed frame 8, so as to achieve the effect of facilitating the support when the fixed frame 8 moves. After the moving frame 2 is adjusted, the second motor 19 is started. At this time, the worm 20 is driven by the second motor 19 to rotate meshingly with the worm gear 22. Furthermore, the rotating shaft 21 drives the connecting rod 23 to rotate. At this time, through the rotation of the connecting rod 23, the effect of driving the sliding column 24 to slide in a limited way inside the fixed cover 18 is achieved. Through the movement of the sliding column 24, the base 25 on the lower surface of the sliding column 24 is driven to contact the ground, achieving the effect of increasing the contact area of the mechanism.
[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A lifting protection mechanism for a hoist, comprising a hoist body (1), characterized in that: On the outside of the elevator body (1), there are symmetrically arranged movable frames (2) on the left and right. On the upper surfaces of the two movable frames (2), brackets (3) are fixedly connected. On one side of the outer wall of one of the brackets (3), a first motor (4) is fixedly connected. The output end of the first motor (4) is fixedly connected with a first spur gear (5). On one side of the outer wall of the bracket (3), a connecting frame (6) is rotatably connected. On one side of the outer wall of the connecting frame (6), a second spur gear (7) is fixedly connected. The second spur gear (7) is meshed and connected with the first spur gear (5). On one side of the outer wall of the connecting frame (6), a fixed frame (8) is fixedly connected. On the upper surface of the fixed frame (8), a plurality of L-shaped protective covers (9) are fixedly connected. Between the two brackets (3), a telescopic arm (10) is fixedly connected. On one side of the outer wall of the telescopic arm (10), a hydraulic rod (11) is fixedly connected. The output end of the hydraulic rod (11) is provided with a universal joint (12). Inside the universal joint (12), a connecting component (13) for connecting the movement of the bracket (3) is installed.
2. The lifting and protecting mechanism for a hoist according to claim 1, wherein: The connecting component (13) includes a connecting plate (1301). The connecting plate (1301) is rotatably connected inside the universal joint (12). On one side of the outer wall of the connecting plate (1301), a first hinge seat (1302) is rotatably connected. On one side of the outer wall of the first hinge seat (1302), it is fixedly connected to one side of the outer wall of the bracket (3).
3. The lifting and protecting mechanism for a hoist according to claim 2, characterized in that: On the upper surface of the movable frame (2), a second hinge seat (14) is fixedly connected. Inside the second hinge seat (14), a hydraulic cylinder (15) is rotatably connected. The output end of the hydraulic cylinder (15) is fixedly connected with a hinge block (16).
4. The lifting and protecting mechanism for a hoist according to claim 3, characterized in that: Inside the hinge block (16), a limiting column (17) is fixedly connected. The limiting column (17) is slidably connected inside the fixed frame (8).
5. The lifting and protecting mechanism for a hoist according to claim 4, characterized in that: On one side of the outer wall of the movable frame (2), a fixed cover (18) is fixedly connected. On the upper surface of the fixed cover (18), a second motor (19) is fixedly connected. The output end of the second motor (19) is fixedly connected with a worm (20).
6. The lifting and protecting mechanism for a hoist according to claim 5, characterized in that: Inside the fixed cover (18), a rotating shaft (21) is rotatably connected. On the outer wall of the rotating shaft (21), a worm gear (22) is fixedly connected. The worm gear (22) is meshed and connected with the worm (20).
7. The lifting and protecting mechanism for a hoist according to claim 6, wherein: Inside the fixed cover (18), a sliding column (24) is slidably connected. Inside the sliding column (24), a connecting rod (23) is rotatably connected. One side of the connecting rod (23) is fixedly connected to the outer wall of the rotating shaft (21).
8. The lifting and protecting mechanism for a hoist according to claim 7, characterized in that: On the lower surface of the sliding column (24), a base (25) is fixedly connected. The worm (20) is rotatably connected inside the fixed cover (18).