A loader safety lock device
By introducing components such as mounting plates, sliding grooves, limit grooves, and permanent magnet rings into the loader's safety locking device, the problem of poor movable locking ability was solved, and the flexible adjustment and stable effect of the safety locking device were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LAIZHOU JIANGUO CHEM MASCH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-19
AI Technical Summary
The existing safety locking device for the high-load lifting platform of loaders has poor locking capability and cannot be adjusted to the appropriate position and angle as needed, thus affecting the safety locking effect.
The device employs components such as mounting plates, sliding grooves, limit grooves, permanent magnet rings, electromagnetic rings, push blocks, limit blocks, strong springs, and return springs. Through the coordinated use of these components, the safety locking device can be adjusted and fixed, thereby improving the locking effect.
The active locking capability of the safety locking device has been improved, making it easier to adjust to a suitable position and angle, thereby enhancing the safety locking and fixing effect of the loader.
Smart Images

Figure CN224379003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loader technology, specifically a loader safety locking device. Background Technology
[0002] A loader is a type of earthmoving machinery widely used in construction projects such as highways, railways, buildings, hydropower, ports, and mines. It is mainly used for shoveling and loading loose materials such as soil, sand, gravel, lime, and coal. It can also perform light shoveling operations on ores and hard soil. With different auxiliary working devices, it can also perform bulldozing, lifting, and loading and unloading operations of other materials such as timber.
[0003] Existing technology publication CN215254368U discloses a safety locking device for a high-load lifting platform. The device includes a sliding groove on the inner wall of the frame, a fixed shaft at the top of the frame, and a pawl rotatably connected to the fixed shaft; a lifting rod with a sliding block fixed at its bottom, the sliding block slidably connected to the sliding groove; a first rotating assembly including a first rotating shaft rotatably connected to the frame, and a ratchet on the first rotating shaft that engages with the pawl; a second rotating assembly including a second rotating shaft rotatably connected to the frame, the input end of the second rotating shaft being drive-connected to the output end of the first rotating shaft, and the output end of the second rotating shaft being drive-connected to the lifting rod; and a gear set including a driving gear, a first driven gear, and a second driven gear. The driving gear is fixed to the first rotating shaft and rotates synchronously with it. The second driven wheels are all fixed to the second rotating shaft and rotate synchronously with the second rotating shaft. The driving wheel meshes with the first rotating wheel, and the second rotating wheel meshes with the lifting rod. The end of the first rotating shaft away from the lifting rod extends out of the frame. A handle is connected to the end of the first rotating shaft extending out of the frame. The outer surface of the end of the first rotating shaft extending out of the frame has several radial protrusions. The handle includes a connecting part, which is annular. The inner wall of the connecting part has several slots that are adapted to the radial protrusions. A bearing is provided at the connection between the first rotating shaft and the frame, and a bearing is provided at the connection between the second rotating shaft and the frame. A ratchet mechanism is formed by setting a ratchet and pawl, so that when the pawl is lowered, it can lock the ratchet, so that the ratchet can only rotate in one direction to lift the lifting rod. When the pawl is raised, it can lower the lifting rod, which is highly safe and can provide locking during the lifting process to prevent the ratchet from rotating in the opposite direction.
[0004] However, in the existing technology CN215254368U patent, the movable locking capability of a high-load lifting platform safety locking device is poor. As a result, in the actual use of the high-load lifting platform safety locking device, it is impossible to adjust the safety locking device to a suitable position and angle, making it inconvenient to safely lock the loader and affecting the safety locking effect of the high-load lifting platform safety locking device. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] The purpose of this invention is to provide a loader safety locking device to solve the problem of poor movable locking capability of a high-load lifting platform safety locking device mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a loader safety locking device, comprising a mounting plate, a mounting screw hole fixedly provided at the upper end of the mounting plate, a sliding groove fixedly provided at the upper end of the mounting plate, a limit groove fixedly provided inside the sliding groove, a traction rod movably provided at the upper end of the sliding groove, a limit shaft movably provided at the upper end of the traction rod, a permanent magnet ring fixedly provided at one end of the mounting plate, and a movable shaft movably provided at one end of the permanent magnet ring.
[0009] As a further improvement of this utility model: an electromagnetic ring is fixedly provided at one end of the movable shaft, and a push block is fixedly provided at the end of the movable shaft away from the electromagnetic ring. By improving the safety locking device, the movable locking capability of the safety locking device is improved. In the actual use of the safety locking device, the safety locking device can be adjusted to a suitable position and angle to facilitate the safe locking of the loader, thereby improving the safety locking effect of the loader safety locking device.
[0010] As a further improvement of this utility model: a limit block is fixedly provided at the upper end of the push block, and a strong spring is fixedly provided at one end of the limit block. The use of the mounting plate and mounting screw holes facilitates the installation and fixing of the loader safety locking device.
[0011] As a further improvement of this utility model: a reset spring is fixedly provided at the end of the limiting block away from the strong spring, a reserved groove is fixedly provided inside the mounting plate, and a shut-off valve is fixedly provided at one end of the pushing block. The use of the sliding groove and the limiting groove facilitates the movement adjustment of the traction rod and the limiting shaft. Then, the use of the permanent magnet ring, the movable shaft, and the electromagnetic ring facilitates the movement and stretching of the pushing block and the limiting block.
[0012] As a further improvement of this utility model: a rotating shaft is movably provided in the middle of the traction rod, and a fixing plate is movably provided at the lower end of the traction rod. By using a shut-off valve, the safety locking effect of the loader's safety locking device is further improved. Then, by using a strong spring and a return spring, the buffer return of the loader's safety locking device is facilitated.
[0013] As a further improvement of this utility model: the upper end of the fixing plate is fixedly provided with a fixing screw hole, and the upper end of the fixing plate is fixedly provided with a mounting block. By using the rotating shaft, the fixing block, and the fixing screw hole, the installation of the mounting block, the fixing bolt, the fixing block, and the mounting bolt is facilitated.
[0014] As a further improvement of this utility model: a fixing bolt is fixedly provided at the upper end of the mounting block, a fixing block is fixedly provided at one end of the mounting block, and a mounting bolt is fixedly provided at the upper end of the fixing block. By using the mounting block, fixing bolt, fixing block, and mounting bolt, the fixing effect of the loader safety locking device is improved.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. The loader safety locking device has improved its locking capability through improvements. In actual use, the safety locking device can be adjusted to a suitable position and angle to facilitate the safe locking of the loader, thus improving the safety locking effect of the loader safety locking device.
[0017] 2. The loader safety locking device, through the use of a rotating shaft, a fixing block, and fixing screw holes, facilitates the installation of the mounting block, fixing bolts, fixing block, and mounting bolts. Then, through the use of the mounting block, fixing bolts, fixing block, and mounting bolts, the fixing effect of the loader safety locking device is improved.
[0018] 3. The loader safety locking device facilitates installation and fixation through the use of mounting plates and mounting screw holes. The sliding groove and limit groove facilitate the adjustment of the pull rod and limit shaft. The permanent magnet ring, movable shaft, and electromagnetic ring facilitate the extension and retraction of the push block and limit block. The use of a shut-off valve further enhances the safety locking effect of the loader safety locking device. Finally, the use of a powerful spring and a return spring facilitates the buffer return of the loader safety locking device.
[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the mounting plate structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the shut-off valve structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the mounting block structure of this utility model.
[0024] In the diagram: 1. Mounting plate; 2. Mounting screw hole; 3. Sliding groove; 4. Limiting groove; 5. Traction rod; 6. Limiting shaft; 7. Permanent magnet ring; 8. Movable shaft; 9. Electromagnetic ring; 10. Push block; 11. Limiting block; 12. Strong spring; 13. Return spring; 14. Reserved groove; 15. Shut-off valve; 16. Rotating shaft; 17. Fixing plate; 18. Fixing screw hole; 19. Mounting block; 20. Fixing bolt; 21. Fixing block; 22. Mounting bolt. Detailed Implementation
[0025] 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.
[0026] Please see Figures 1-4 This utility model provides a technical solution: a loader safety locking device, including a mounting plate 1, a mounting screw hole 2 fixedly provided at the upper end of the mounting plate 1, a sliding groove 3 fixedly provided at the upper end of the mounting plate 1, a limit groove 4 fixedly provided inside the sliding groove 3, a traction rod 5 movably provided at the upper end of the sliding groove 3, a limit shaft 6 movably provided at the upper end of the traction rod 5, a permanent magnet ring 7 fixedly provided at one end of the mounting plate 1, and a movable shaft 8 movably provided at one end of the permanent magnet ring 7.
[0027] An electromagnetic ring 9 is fixedly installed at one end of the movable shaft 8. A push block 10 is fixedly installed at the end of the movable shaft 8 away from the electromagnetic ring 9. A limit block 11 is fixedly installed at the upper end of the push block 10. A strong spring 12 is fixedly installed at one end of the limit block 11. A return spring 13 is fixedly installed at the end of the limit block 11 away from the strong spring 12. A reserved groove 14 is fixedly installed inside the mounting plate 1. A shut-off valve 15 is fixedly installed at one end of the push block 10. The use of the mounting plate 1 and the mounting screw hole 2 facilitates the installation and fixing of the loader safety locking device. The use of the sliding groove 3 and the limit groove 4 facilitates the movement adjustment of the traction rod 5 and the limit shaft 6. The use of the permanent magnet ring 7, the movable shaft 8, and the electromagnetic ring 9 facilitates the movement extension of the push block 10 and the limit block 11. The use of the shut-off valve 15 further improves the safety locking effect of the loader safety locking device. The use of the strong spring 12 and the return spring 13 facilitates the buffer return of the loader safety locking device.
[0028] A rotating shaft 16 is movably mounted in the middle of the drawbar 5, and a fixing plate 17 is movably mounted at the lower end of the drawbar 5. A fixing screw hole 18 is fixedly mounted at the upper end of the fixing plate 17, and a mounting block 19 is fixedly mounted at the upper end of the mounting block 19. A fixing bolt 20 is fixedly mounted at the upper end of the mounting block 19, and a fixing block 21 is fixedly mounted at one end of the mounting block 19. A mounting bolt 22 is fixedly mounted at the upper end of the fixing block 21. The use of the rotating shaft 16, fixing block 21, and fixing screw hole 18 facilitates the installation of the mounting block 19, fixing bolt 20, fixing block 21, and mounting bolt 22. Furthermore, the use of the mounting block 19, fixing bolt 20, fixing block 21, and mounting bolt 22 improves the fixing effect of the loader's safety locking device.
[0029] Working principle: First, the use of mounting plate 1 and mounting screw hole 2 facilitates the installation and fixation of the loader's safety locking device. Then, the use of sliding groove 3 and limit groove 4 facilitates the adjustment of the traction rod 5 and limit shaft 6. Then, the use of permanent magnet ring 7, movable shaft 8, and electromagnetic ring 9 facilitates the extension and retraction of push block 10 and limit block 11. Then, the use of shut-off valve 15 further improves the safety locking effect of the loader's safety locking device. Then, the use of strong spring 12 and return spring 13 facilitates the buffer return of the loader's safety locking device. Then, the use of rotating shaft 16, fixing block 21, and fixing screw hole 18 facilitates the installation of mounting block 19, fixing bolt 20, fixing block 21, and mounting bolt 22. Finally, the use of mounting block 19, fixing bolt 20, fixing block 21, and mounting bolt 22 improves the fixing effect of the loader's safety locking device.
[0030] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.
Claims
1. A loader safety locking device, comprising a mounting plate (1), characterized in that: The upper end of the mounting plate (1) is fixedly provided with mounting screw holes (2), the upper end of the mounting plate (1) is fixedly provided with sliding groove (3), the inside of the sliding groove (3) is fixedly provided with limiting groove (4), the upper end of the sliding groove (3) is movably provided with traction rod (5), the upper end of the traction rod (5) is movably provided with limiting shaft (6), one end of the mounting plate (1) is fixedly provided with permanent magnet ring (7), and one end of the permanent magnet ring (7) is movably provided with movable shaft (8).
2. The loader safety locking device according to claim 1, characterized in that: An electromagnetic ring (9) is fixedly provided at one end of the movable shaft (8), and a push block (10) is fixedly provided at the other end of the movable shaft (8) away from the electromagnetic ring (9).
3. A loader safety locking device according to claim 2, characterized in that: A limit block (11) is fixedly provided at the upper end of the push block (10), and a strong spring (12) is fixedly provided at one end of the limit block (11).
4. A loader safety locking device according to claim 3, characterized in that: A reset spring (13) is fixedly installed at the end of the limiting block (11) away from the strong spring (12), a reserved groove (14) is fixedly installed inside the mounting plate (1), and a shut-off valve (15) is fixedly installed at one end of the pushing block (10).
5. A loader safety locking device according to claim 4, characterized in that: A rotating shaft (16) is movably provided in the middle of the traction rod (5), and a fixing plate (17) is movably provided at the lower end of the traction rod (5).
6. A loader safety locking device according to claim 5, characterized in that: The upper end of the fixing plate (17) is fixedly provided with a fixing screw hole (18), and the upper end of the fixing plate (17) is fixedly provided with a mounting block (19).
7. A loader safety locking device according to claim 6, characterized in that: The upper end of the mounting block (19) is fixedly provided with a fixing bolt (20), one end of the mounting block (19) is fixedly provided with a fixing block (21), and the upper end of the fixing block (21) is fixedly provided with a mounting bolt (22).