Lifting hook mechanism for bridge crane
By introducing a threaded connecting rod and a lubrication structure into the hook mechanism of a bridge crane, the problem of loose hook caps was solved, improving the stability of the hook and the service life of the pulleys.
Patent Information
- Application Number
- CN202423109474.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The existing hook mechanism of bridge cranes has a simple structure, and the pressure cap is prone to loosening, resulting in poor stability during long-term use.
The system employs a combination structure of threaded connecting rod, threaded sleeve, threaded rod, rotating plate, and conical block. The hook is fixed by threaded connection, and a lubrication structure, including an oil box, elastic strip, and bristles, is installed on the hook beam to lubricate the pulley.
It effectively prevents the screw sleeve from loosening, improves the stability of the hook mechanism, and extends the service life of the pulley through the lubrication structure.
Smart Images
Figure CN223575946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge crane technology, specifically to a hook mechanism for a bridge crane. Background Technology
[0002] A bridge crane is a type of lifting equipment that spans across workshops, warehouses, and material yards for material handling. Its two ends rest on tall concrete pillars or metal supports, resembling a bridge, hence the name. The bridge frame of a bridge crane runs longitudinally along tracks laid on elevated structures on both sides, making full use of the space beneath the bridge frame for material handling without obstruction from ground equipment. The hook structure is one of the important components of a bridge crane. However, the hook mechanisms used in bridge cranes currently on the market are relatively simple, and the pressure caps may loosen over long-term use. Therefore, a new hook mechanism for bridge cranes is proposed. Utility Model Content
[0003] The purpose of this utility model is to provide a hook mechanism for bridge cranes, so as to solve the problem mentioned in the background art that the hook mechanism of bridge cranes currently used on the market has a relatively simple structure and the pressure cap may loosen during long-term use.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a hook mechanism for a bridge crane, comprising an outer cover, a pulley rotatably disposed inside the outer cover, two first pull plates fixedly disposed at the bottom of the pulley, a hook beam rotatably disposed between the two first pull plates, a hook disposed at the top of the hook beam, a threaded connecting rod fixedly disposed at the top of the hook and penetrating the hook beam, a threaded sleeve threadedly connected to the outer side of the threaded connecting rod, a threaded rod threadedly connected to the top of the threaded connecting rod, a rotating plate fixedly disposed at the top of the threaded rod, a conical block fixedly disposed at the bottom of the threaded rod, two L-shaped plates disposed inside the threaded connecting rod and one end of the L-shaped plates penetrating the threaded connecting rod, and a lubrication structure disposed on one side of the outer cover.
[0005] Preferably, the lubrication structure includes two latches, which are respectively fixedly installed on one side of the outer cover. An oil box is provided on one side of the outer cover. Both ends of the oil box are fixedly provided with latch plates, which fasten to the outside of the latches. A connecting pipe is fixedly connected to the top of the oil box. A sealing plug is inserted into the inside of the connecting pipe. An elastic strip is fixedly provided at the bottom of the sealing plug. Multiple bristles are fixedly provided on the outside of the elastic strip. A second pull plate is fixedly provided at the top of the sealing plug.
[0006] Preferably, the hook beam has a connecting hole inside, and the threaded connecting rod passes through the connecting hole.
[0007] Preferably, the threaded connecting rod has a threaded hole at its top, and the threaded rod is adapted to the size of the threaded hole.
[0008] Preferably, the top of the oil box has a through hole, and the connecting pipe is connected to the through hole.
[0009] Preferably, the buckle plate has a slot inside, which is fastened to the outside of the buckle rod.
[0010] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:
[0011] This utility model, by setting up a threaded connecting rod, a threaded sleeve, a threaded rod, a rotating plate, and a conical block, allows for the following operation: The hook is installed at the bottom of the hook beam, and the threaded connecting rod at the top of the hook passes through the hook beam. The threaded sleeve is then threadedly connected to the threaded connecting rod. Rotating the rotating plate causes the conical block at the bottom of the threaded rod to push two L-shaped plates to slide. One end of the L-shaped plate passes through the threaded connecting rod and abuts against the top of the threaded sleeve, preventing the sleeve from loosening over time. Simultaneously, an oil box is installed on one side of the outer cover. During oiling, a second pull plate separates the elastic strip and brush bristles from the oil box, allowing oil to be applied to the pulley. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a side view of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the connection structure between the hook beam and the threaded connecting rod of this utility model;
[0015] Figure 3 This is a schematic diagram of the lubrication structure of this utility model;
[0016] Figure 4 For the present utility model Figure 3 A magnified structural diagram of A in the diagram.
[0017] Explanation of reference numerals in the attached diagram: 1. Outer cover; 2. Pulley; 3. First pull plate; 4. Hook beam; 5. Hook; 6. Threaded connecting rod; 7. Screw sleeve; 8. Threaded rod; 9. Rotating plate; 10. Conical block; 11. L-shaped plate; 12. Buckle rod; 13. Oil box; 14. Buckle plate; 15. Connecting pipe; 16. Sealing plug; 17. Elastic strip; 18. Brush bristles; 19. Second pull plate. 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. 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.
[0019] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0020] Example
[0021] In the existing technology, the hook mechanism of the bridge crane currently used in the market has a relatively simple structure, and the pressure cap may loosen during long-term use.
[0022] Please see Figure 1-4 This utility model provides a technical solution: a hook mechanism for a bridge crane, including an outer cover 1, a pulley 2 rotatably arranged inside the outer cover 1, two first pull plates 3 fixedly arranged at the bottom of the pulley 2, a hook beam 4 rotatably arranged between the two first pull plates 3, a hook 5 arranged at the top of the hook beam 4, a threaded connecting rod 6 fixedly arranged at the top of the hook 5 and passing through the hook beam 4, a threaded sleeve 7 threadedly connected to the outer side of the threaded connecting rod 6, a threaded rod 8 threadedly connected to the top of the threaded connecting rod 6, a rotating plate 9 fixedly arranged at the top of the threaded rod 8, a conical block 10 fixedly arranged at the bottom of the threaded rod 8, and a... Two L-shaped plates 11 are provided, with one end of the L-shaped plate 11 passing through the threaded connecting rod 6. A lubrication structure is provided on one side of the outer cover 1. In use, the hook beam 4 is rotatably installed between the two first pull plates 3. Then, the hook 5 is installed at the bottom of the hook beam 4. The threaded connecting rod 6 at the top of the hook 5 passes through the hook beam 4. Then, the threaded sleeve 7 is threadedly connected to the threaded connecting rod 6 to fix the hook 5. Then, the rotating plate 9 is rotated to drive the threaded rod 8 to rotate. The conical block 10 at the top of the threaded rod 8 will push the two L-shaped plates 11 to slide. One end of the L-shaped plate 11 passes through the threaded connecting rod 6 and abuts against the top of the threaded sleeve 7, thereby limiting the threaded sleeve 7 and preventing the threaded sleeve 7 from loosening over a long period of time.
[0023] The lubrication structure includes two latches 12, which are fixedly installed on one side of the outer cover 1. An oil box 13 is provided on one side of the outer cover 1. Both ends of the oil box 13 are fixedly provided with latch plates 14, which are fastened to the outside of the latches 12. A connecting pipe 15 is fixedly connected to the top of the oil box 13. A sealing plug 16 is inserted into the inside of the connecting pipe 15. An elastic strip 17 is fixedly provided at the bottom of the sealing plug 16. Multiple bristles 18 are fixedly provided on the outside of the elastic strip 17. A second pull plate 19 is fixedly provided at the top of the sealing plug 16. In use, the oil box 13 is installed on one side of the outer cover 1 by connecting the latches 14 and the latches 12. Then, the sealing plug 16 is connected to the connecting pipe 15, so that the elastic strip 17 and the bristles 18 are installed inside the oil box 13. When applying oil, the elastic strip 17 and the bristles 18 are separated by the second pull plate 19, and then the oil is applied to the pulley 2.
[0024] The hook beam 4 has a connecting hole inside, and the threaded connecting rod 6 passes through the connecting hole. The hook 5 is installed at the bottom of the hook beam 4 through the threaded connecting rod 6.
[0025] The top of the threaded connecting rod 6 has a threaded hole, and the threaded rod 8 is adapted to the size of the threaded hole. The conical block 10 is moved by the brush bristles 18.
[0026] The top of the oil box 13 has a through hole, and the connecting pipe 15 is connected to the through hole so that oil can be injected into the oil box 13 through the connecting pipe 15.
[0027] The buckle plate 14 has a slot inside, which is fastened to the outside of the buckle rod 12, and the oil box 13 is connected to the buckle rod 12 through the buckle plate 14.
[0028] The working principle or structural principle is as follows: During use, the hook beam 4 is rotatably installed between the two first pull plates 3, and then the hook 5 is installed at the bottom of the hook beam 4. The threaded connecting rod 6 at the top of the hook 5 passes through the hook beam 4. Then, the threaded sleeve 7 is threadedly connected to the threaded connecting rod 6 to fix the hook 5. Then, the rotating plate 9 is rotated, which drives the threaded rod 8 to rotate. The conical block 10 at the bottom of the threaded rod 8 pushes the two L-shaped plates 11 to slide. One end of the L-shaped plate 11 passes through the threaded connecting rod 6 and abuts against the top of the threaded sleeve 7, thereby limiting the threaded sleeve 7 and preventing it from loosening over time. At the same time, the oil box 13 is installed on one side of the outer cover 1 through the buckle plate 14 and the buckle rod 12. Then, the sealing plug 16 is connected to the connecting pipe 15, so that the elastic strip 17 and the brush bristles 18 are installed inside the oil box 13. When applying oil, the elastic strip 17 and the brush bristles 18 are separated from the oil box 13 by the second pull plate 19, and then the pulley 2 is coated.
[0029] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
Claims
1. A hook mechanism for a bridge crane, comprising an outer cover (1), characterized in that: The outer cover (1) is rotatably equipped with a pulley (2). Two first pull plates (3) are fixedly installed at the bottom of the pulley (2). A hook beam (4) is rotatably installed between the two first pull plates (3). A hook (5) is installed at the top of the hook beam (4). A threaded connecting rod (6) is fixedly installed at the top of the hook (5) and the threaded connecting rod (6) passes through the hook beam (4). A threaded sleeve (7) is threadedly connected to the outside of the threaded connecting rod (6). A threaded rod (8) is threadedly connected to the top of the threaded connecting rod (6). A rotating plate (9) is fixedly installed at the top of the threaded rod (8). A conical block (10) is fixedly installed at the bottom of the threaded rod (8). Two L-shaped plates (11) are installed inside the threaded connecting rod (6) and one end of the L-shaped plate (11) passes through the threaded connecting rod (6). A lubrication structure is provided on one side of the outer cover (1).
2. The hook mechanism for a bridge crane according to claim 1, characterized in that: The lubrication structure includes two latches (12), which are fixedly installed on one side of the outer cover (1). An oil box (13) is provided on one side of the outer cover (1). Both ends of the oil box (13) are fixedly provided with latch plates (14), which are fastened to the outside of the latches (12). A connecting pipe (15) is fixedly connected to the top of the oil box (13). A sealing plug (16) is inserted into the inside of the connecting pipe (15). An elastic strip (17) is fixedly provided at the bottom of the sealing plug (16). Multiple bristles (18) are fixedly provided on the outside of the elastic strip (17). A second pull plate (19) is fixedly provided at the top of the sealing plug (16).
3. The hook mechanism for a bridge crane according to claim 1, characterized in that: The hook beam (4) has a connecting hole inside, and the threaded connecting rod (6) passes through the connecting hole.
4. The hook mechanism for a bridge crane according to claim 1, characterized in that: The threaded connecting rod (6) has a threaded hole at its top, and the threaded rod (8) is adapted to the size of the threaded hole.
5. A hook mechanism for a bridge crane according to claim 2, characterized in that: The top of the oil box (13) has a through hole, and the connecting pipe (15) is connected to the through hole.
6. A hook mechanism for a bridge crane according to claim 2, characterized in that: The buckle plate (14) has a slot inside, which is fastened to the outside of the buckle rod (12).