Lifting hook assembly for crane

Abstract

The utility model discloses a lifting hook assembly for a crane, which comprises a main rod, a U-shaped seat is arranged on the lower end face of the main rod, an L-shaped column is rotatably arranged in the U-shaped seat, a plurality of hooks are detachably arranged on the left end face and the lower end face of the L-shaped column, the hooks are different in model, a rotating shaft is arranged on the L-shaped column, and a lifting hook is arranged on the rotating shaft. Rotating holes corresponding to the rotating shaft are formed in the front end face and the rear end face of the U-shaped seat, rotating rings are arranged on the front side and the rear side of the outer end face of the rotating shaft, mounting blocks are arranged on the upper end faces of the hooks, mounting grooves corresponding to the mounting blocks are formed in the left end face and the lower end face of the L-shaped column, and first mounting holes are formed in the mounting blocks. And second mounting holes are formed in the positions, corresponding to the two mounting grooves, of the L-shaped column, the first mounting holes and the second mounting holes are connected through bolts, through the design of the L-shaped column, adaptation to external workpieces of different models is facilitated, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hooks, and more particularly to a hook assembly for a crane. Background Art

[0002] A crane refers to a multi-action lifting machinery that vertically lifts and horizontally carries heavy objects within a certain range. With the continuous development of my country's economy, the application scope and use field of cranes are becoming more and more extensive. The crane hook assembly is the main equipment for hooking external workpieces. When the existing hook assembly is in use, the hook model is fixed for different external workpieces, which is inconvenient to adjust and its practicality needs to be improved. Moreover, when the device is in use, after the hook adjustment is completed, the locking effect is poor and there is a lack of suitable reinforced locking mechanism. In addition, when the device is in use, the hook body and the entire device are subjected to force through rotation adjustment during the lifting process, and the overall strength is poor and there is a lack of suitable reinforced protection mechanism. Utility Model Content

[0003] (1) Technical problems solved

[0004] In response to the problems existing in the prior art, the utility model provides a hook assembly for a crane to solve the technical problem mentioned in the background art that the hook model of the hook assembly is fixed and inconvenient to adjust for different external workpieces.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A hook assembly for a crane, comprising a main rod, a U-shaped seat is provided on the lower end surface of the main rod, an L-shaped column is rotatably provided inside the U-shaped seat, the left end surface and the lower end surface of the L-shaped column are detachably provided with a hook, and a plurality of hooks are provided, and the plurality of hooks are provided with different models, a rotating shaft is provided on the L-shaped column, and a rotating hole is provided on the front and rear end surfaces of the U-shaped seat corresponding to the rotating shaft, and a rotating ring is provided on the front and rear sides of the outer end surface of the rotating shaft, and a plurality of upper end surfaces of the hooks are provided with mounting blocks, and a mounting groove is provided on the left and lower end surfaces of the L-shaped column corresponding to the mounting block, and a first mounting hole is provided on the plurality of mounting blocks, and a second mounting hole is provided on the L-shaped column corresponding to the two mounting grooves, and the first mounting hole and the second mounting hole are connected by bolts.

[0007] The present invention is further configured such that the front and rear end surfaces of the U-shaped seat are both provided with locking mechanisms corresponding to the L-shaped columns, so as to facilitate locking after adjustment.

[0008] The utility model is further configured such that both of the locking mechanisms include a locking rod and a locking plate, two locking rods are provided, both of the locking rods are arranged through the U-shaped seat, the locking plate is connected and arranged at the outer ends of the two locking rods, and the front and rear end faces of the L-shaped column are provided with locking holes corresponding to the multiple locking rods to achieve enhanced locking.

[0009] The utility model is further configured such that adjustment rods are rotatably provided on the front and rear end surfaces of the U-shaped seat, and adjustment holes are opened on the two locking plates corresponding to the adjustment rods, and the adjustment rods and the adjustment holes are threadedly connected to achieve locking adjustment.

[0010] The utility model is further configured such that limiting rods are provided on both the front and rear sides of the lower end face of the U-shaped seat, and limiting holes are provided on the two locking rods on the lower side corresponding to the limiting rods to facilitate the limiting of the locking rods.

[0011] The utility model is further configured such that the bottom ends of the two limit rods are each provided with a limit ring, and a spring is provided between the limit ring and the U-shaped seat to facilitate quick adjustment and reset.

[0012] The present invention is further configured such that a reinforcement mechanism is provided inside the U-shaped seat corresponding to the L-shaped column to improve the connection strength.

[0013] The utility model is further configured as follows: the reinforcement mechanism includes a reinforcement plate and a reinforcement rod, the reinforcement plate is fixedly arranged inside the U-shaped seat, the reinforcement rod is installed on the reinforcement plate, a threaded hole is opened on the reinforcement plate corresponding to the reinforcement rod, the reinforcement rod and the threaded hole are threadedly connected, a reinforcement hole is opened on the L-shaped column corresponding to the reinforcement rod, two reinforcement holes are provided, and the reinforcement hole and the reinforcement rod are threadedly connected to achieve a reinforced connection.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the present invention provides a crane hook assembly having the following features:

[0016] Beneficial effects:

[0017] 1. Through the design of the L-shaped column, hooks of different types are installed on both sides of the L-shaped column. The L-shaped column is equipped with a hook that can be rotated and adjusted relative to the U-shaped seat, which is convenient for adjusting the hook and adapting to different types of external workpieces, thereby improving practicality.

[0018] 2. Through the design of the locking mechanism, the locking rod and the locking hole of the locking mechanism are matched, the adjusting rod and the adjusting hole thread are matched, and the locking plate drives the locking rod to slide and adjust, so as to achieve locking after rotation, improve the locking effect after rotation adjustment, ensure the stability after rotation adjustment, and ensure the stability of subsequent lifting operations.

[0019] 3. Through the design of the reinforcement mechanism, the threaded holes of the reinforcement rod and the reinforcement plate of the reinforcement mechanism are matched, and the reinforcement rod is matched with the reinforcement hole thread of the L-shaped column after being raised and lowered, which facilitates the reinforcement of the overall connection of the device, improves the connection strength, and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the preferred overall structure of a crane hook assembly;

[0021] Figure 2 This is a schematic diagram of the internal structure of a U-shaped seat preferably used in a crane hook assembly;

[0022] Figure 3 This is a schematic diagram of an L-shaped column structure preferably used in a crane hook assembly;

[0023] Figure 4 A schematic diagram of the preferred structure of a locking rod and a locking plate for a crane hook assembly;

[0024] Figure 5 A schematic diagram of the preferred matching structure of a hook and a mounting block for a crane hook assembly;

[0025] Figure 6 for Figure 2 A magnified schematic diagram of the local structure of Figure A.

[0026] In the figure: 1. Main rod; 2. U-shaped seat; 3. L-shaped column; 4. Hook; 5. Rotating shaft; 6. Rotating hole; 7. Rotating ring; 8. Mounting block; 9. Mounting slot; 10. First mounting hole; 11. Second mounting hole; 12. Locking rod; 13. Locking plate; 14. Locking hole; 15. Adjusting rod; 16. Adjusting hole; 17. Limiting rod; 18. Limiting hole; 19. Limiting ring; 20. Spring; 21. Reinforcement plate; 22. Reinforcement rod; 23. Threaded hole; 24. Reinforcement hole. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0030] See also Figure 1-Figure 3 、 Figure 5 and Figure 6 A hook assembly for a crane includes a main rod 1, a U-shaped seat 2 is provided on the lower end surface of the main rod 1, an L-shaped column 3 is provided for rotation inside the U-shaped seat 2, the left end surface and the lower end surface of the L-shaped column 3 are detachable and provided with a hook 4, a plurality of hooks 4 are provided, and the multiple hooks 4 are provided with different models, a rotating shaft 5 is provided on the L-shaped column 3, and a rotating hole 6 is opened on the front and rear end surfaces of the U-shaped seat 2 corresponding to the rotating shaft 5, and a rotating ring 7 is provided on the front and rear sides of the outer end of the rotating shaft 5, and a plurality of hooks 4 are provided on the upper end surfaces. A mounting block 8 is provided, and a mounting groove 9 is opened on the left end surface and the lower end surface of the L-shaped column 3 corresponding to the mounting block 8. A first mounting hole 10 is opened on the multiple mounting blocks 8, and a second mounting hole 11 is opened on the L-shaped column 3 corresponding to the two mounting slots 9. The first mounting hole 10 and the second mounting hole 11 are connected by bolts.

[0031] In this embodiment, two commonly used hooks 4 are selected for installation, the mounting block 8 and the mounting groove 9 are installed in coordination, the first mounting hole 10 and the second mounting hole 11 are aligned, the bolts are passed through and tightened, the rotating shaft with the rotating ring 7 is rotated and adjusted relative to the rotating hole 6 of the base, the L-shaped column 3 drives the appropriate hook 4 to rotate to the lower position, and the appropriate hook 4 is put into use.

[0032] See also Figure 1 、 Figure 3 、 Figure 4 and Figure 6 As an implementation method of rotation locking: the front and rear end surfaces of the U-shaped seat 2 are respectively provided with a locking mechanism corresponding to the L-shaped column 3, and the two locking mechanisms include a locking rod 12 and a locking plate 13. There are two locking rods 12, and the two locking rods 12 are both arranged on the U-shaped seat 2. The locking plate 13 is connected to the outer ends of the two locking rods 12. The front and rear end surfaces of the L-shaped column 3 are respectively provided with locking holes 14 corresponding to multiple locking rods 12. The front and rear end surfaces of the U-shaped seat 2 are rotatably provided with an adjusting rod 15, and the two locking plates 13 are respectively provided with adjusting holes 16 corresponding to the adjusting rods 15. The adjusting rod 15 and the adjusting hole 16 are threadedly connected. A limiting rod 17 is penetrated on both the front and rear sides of the lower end surface of the U-shaped seat 2, and a limiting hole 18 is provided on the two lower locking rods 12 corresponding to the limiting rod 17. The bottom ends of the two limiting rods 17 are provided with a limiting ring 19, and a spring 20 is connected between the limiting ring 19 and the U-shaped seat 2.

[0033] Specifically, rotate the adjusting rod 15, the adjusting rod 15 and the adjusting hole 16 of the locking plate 13 are threadedly matched, and the locking plate 13 drives the locking rod 12 to be inserted inward into the locking hole 14 of the L-shaped column 3, and the rotated state is locked. Before the locking operation, grasp the limit ring 19 to pull the limit rod 17 downward, and the spring 20 is stretched. After rotating and adjusting to lock, loosen the limit ring 19, the spring 20 retracts, resets and inserts into the limit hole 18, and the sliding state of the locking rod 12 is locked to ensure the locking effect.

[0034] See also Figure 1-Figure 3 As an implementation method for strengthening locking: a reinforcement mechanism is provided inside the U-shaped seat 2 corresponding to the L-shaped column 3, and the reinforcement mechanism includes a reinforcement plate 21 and a reinforcement rod 22. The reinforcement plate 21 is fixedly arranged inside the U-shaped seat 2, and the reinforcement rod 22 is installed on the reinforcement plate 21. A threaded hole 23 is opened on the reinforcement plate 21 corresponding to the reinforcement rod 22, and the reinforcement rod 22 is threadedly connected to the threaded hole 23. A reinforcement hole 24 is opened on the L-shaped column 3 corresponding to the reinforcement rod 22, and there are two reinforcement holes 24, which are threadedly connected to the reinforcement rod 22.

[0035] Specifically, after the L-shaped column 3 is rotated and adjusted, the reinforcing rod 22 is rotated, the reinforcing rod 22 is threadedly engaged with the threaded hole 23, and the reinforcing rod 22 is threadedly engaged with the reinforcing hole 24 downward to be locked, thereby achieving reinforcing locking after adjustment.

[0036] In summary, the overall equipment is in use:

[0037] When in the installation and adjustment state, according to the needs of use, select two appropriate types of hooks 4 for installation, the mounting block 8 of the hook 4 corresponds to the mounting slot 9, the first mounting hole 10 and the second mounting hole 11 are aligned, the bolts are passed through and tightened, and according to the use situation, the appropriate hook 4 is rotated to the lower position and the lifting operation is performed corresponding to the outside world.

[0038] When in the rotation adjustment state, after the rotation adjustment of the L-shaped column 3 is completed, the adjusting rod 15 is rotated, and the adjusting rod 15 and the adjusting hole 16 of the locking plate 13 are threadedly matched. The locking plate 13 drives the locking rod 12 to be inserted into the appropriate locking hole 14 of the L-shaped column 3. Before rotation, grasp the limit ring 19 and pull the limit rod 17 downward. The spring 20 is stretched. After the rotation adjustment is completed, the limit ring 19 is released, the spring 20 retracts, and the limit rod 17 is reset and inserted into the limit hole 18, thereby strengthening the locking of the L-shaped column 3, ensuring the locking effect, and improving the overall strength after rotation adjustment.

[0039] When in the reinforced state after rotation, before the L-shaped column 3 is rotated, the reinforcing rod 22 is rotated, the reinforcing rod 22 and the threaded hole 23 are threadedly engaged, the reinforcing rod 22 is raised and lowered relative to the reinforcing plate 21, and the reinforcing rod 22 slides to the lower position and is threadedly engaged with the external reinforcing hole 24, so that the L-shaped column 3 is further strengthened and locked after rotation to ensure safety during lifting.

[0040] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hook assembly for a crane, comprising a main rod (1), characterized in that: The lower end surface of the main rod (1) is provided with a U-shaped seat (2), and an L-shaped column (3) is rotatably provided inside the U-shaped seat (2). The left end surface and the lower end surface of the L-shaped column (3) are both detachably provided with a hook (4), and a plurality of the hooks (4) are provided, and the plurality of the hooks (4) are provided with different models. A rotating shaft (5) is provided on the L-shaped column (3), and the front and rear end surfaces of the U-shaped seat (2) are both provided with a rotating hole (6) corresponding to the rotating shaft (5), and the front and rear ends of the outer end of the rotating shaft (5) are both provided with a rotating ring (7), and the upper end surfaces of the plurality of the hooks (4) are all provided with a mounting block (8), and the left end surface and the lower end surface of the L-shaped column (3) are both provided with a mounting groove (9) corresponding to the mounting block (8), and the plurality of the mounting blocks (8) are all provided with a first mounting hole (10), and the L-shaped column (3) is provided with a second mounting hole (11) corresponding to the two mounting grooves (9), and the first mounting hole (10) and the second mounting hole (11) are connected by bolts.

2. A crane hook assembly according to claim 1, characterized in that: The front and rear end surfaces of the U-shaped seat (2) are both provided with locking mechanisms corresponding to the L-shaped column (3).

3. A crane hook assembly according to claim 2, characterized in that: The two locking mechanisms each include a locking rod (12) and a locking plate (13). Two locking rods (12) are provided. Both locking rods (12) are provided through the U-shaped seat (2). The locking plate (13) is connected to the outer ends of the two locking rods (12). The front and rear end surfaces of the L-shaped column (3) are provided with locking holes (14) corresponding to the plurality of locking rods (12).

4. A crane hook assembly according to claim 3, characterized in that: The front and rear end surfaces of the U-shaped seat (2) are both rotatably provided with adjustment rods (15), and the two locking plates (13) are both provided with adjustment holes (16) corresponding to the adjustment rods (15), and the adjustment rods (15) and the adjustment holes (16) are threadedly connected.

5. The crane hook assembly according to claim 3, wherein: Limiting rods (17) are provided on both the front and rear sides of the lower end face of the U-shaped seat (2), and limiting holes (18) are provided on the two locking rods (12) on the lower side corresponding to the limiting rods (17).

6. A crane hook assembly according to claim 5, characterized in that: The bottom ends of the two limiting rods (17) are both provided with limiting rings (19), and a spring (20) is connected between the limiting rings (19) and the U-shaped seat (2).

7. The crane hook assembly according to claim 1, wherein: A reinforcement mechanism is provided inside the U-shaped seat (2) corresponding to the L-shaped column (3).

8. A crane hook assembly according to claim 7, characterized in that: The reinforcing mechanism comprises a reinforcing plate (21) and a reinforcing rod (22); the reinforcing plate (21) is fixedly arranged inside the U-shaped seat (2); the reinforcing rod (22) is mounted on the reinforcing plate (21); a threaded hole (23) is provided on the reinforcing plate (21) corresponding to the reinforcing rod (22); the reinforcing rod (22) and the threaded hole (23) are threadedly connected; a reinforcing hole (24) is provided on the L-shaped column (3) corresponding to the reinforcing rod (22); two reinforcing holes (24) are provided; and the reinforcing hole (24) and the reinforcing rod (22) are threadedly connected.

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