Intelligent locking device for crane hook

Abstract

The utility model discloses an intelligent locking device for a crane hook, and relates to the technical field of hooks. The lifting hook comprises a lifting hook body, a connecting plate is arranged at the top end of the lifting hook body, two fixing plates which are symmetrically distributed are fixedly installed at the top end of the connecting plate, a connecting block is fixedly installed at the top end of each fixing plate, a first rotating shaft rotationally penetrates through the middle of each connecting block, and a first gear is fixedly installed outside each first rotating shaft; a rack is connected to the outer side of the first gear in a meshed mode, a second gear is connected to the outer side of the rack in a meshed mode, a second rotating shaft is fixedly installed in the middle of the second gear, a third gear is fixedly installed outside the second rotating shaft, and a fourth gear is connected to the outer side of the third gear in a meshed mode; a third rotating shaft is fixedly mounted in the middle of the fourth gear; according to the lifting hook locking device, the lifting hook can be automatically locked, manual operation is not needed, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of hook technology, specifically to an intelligent locking device for crane hooks. Background Technology

[0002] Publication number "CN214989712U" discloses a crane hook device. Addressing the issues of poor anti-detachment performance and cumbersome operation of existing crane hook anti-detachment structures, which reduce safety during lifting operations, this invention proposes the following solution: A hook body has a circular hole on its front side. A circular rod is rotatably mounted within the hole. A gear and two baffles are fixedly sleeved on the outer side of the circular rod. The two baffles movably abut against the front and rear sides of the hook body, respectively. A fixing plate is fixedly mounted on the front side of the hook body. A connecting spring is fixedly connected to the bottom of the fixing plate. A horizontal plate is fixedly connected to the bottom of the connecting spring. A rack is fixedly mounted on the bottom of the horizontal plate, and the rack meshes with the gear. This invention improves the anti-detachment effect and ensures safety by stably fixing the baffles on the crane hook.

[0003] However, the above technologies still require manual operation to achieve the locking function, which greatly reduces work efficiency. Utility Model Content

[0004] To address the issue that manual operation is still required to achieve the locking function, which greatly reduces work efficiency, the purpose of this utility model is to provide an intelligent locking device for crane hooks.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an intelligent locking device for a crane hook, comprising a hook, a connecting plate at the top of the hook, two symmetrically distributed fixing plates fixedly installed at the top of the connecting plate, a connecting block fixedly installed at the top of the fixing plate, a first rotating shaft rotatably passing through the middle of the connecting block, a first gear fixedly installed on the outside of the first rotating shaft, a rack meshing with the outside of the first gear, a second gear meshing with the outside of the rack, a second rotating shaft fixedly installed in the middle of the second gear, a third gear fixedly installed on the outside of the second rotating shaft, a fourth gear meshing with the outside of the third gear, a third rotating shaft fixedly installed in the middle of the fourth gear, two symmetrically distributed baffles fixedly installed on the outside of the third rotating shaft, a U-shaped plate at the top of the connecting block, and the first, second, and third rotating shafts all rotatably passing through the U-shaped plate.

[0006] Preferably, a plug rod is fixedly installed on the upper surface of the hook, a slot for cooperating with the plug rod is opened through the middle of the connecting plate, an L-shaped plate is fixedly installed on the right side of the fixing plate away from the slot, an L-shaped rod is slidably engaged in the middle of the L-shaped plate, a spring is provided on the outside of the L-shaped rod, one end of the spring is fixedly connected to the L-shaped plate, and stop bars that fit against the spring are fixedly installed on both the upper and lower sides of the L-shaped rod, a through groove for cooperating with the stop bars is opened through the middle of the right fixing plate, a circular groove is opened through the middle of the through groove in the middle of the right fixing plate, a fixing groove for cooperating with the L-shaped rod is opened through the top of the plug rod, and the L-shaped rod passes through the left fixing plate.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. This application realizes automatic locking of the hook, eliminating the need for manual operation and greatly improving work efficiency;

[0009] 2. This application does not require any tools, making it easy to install the connecting plate and the hook, thus improving installation and disassembly efficiency. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of the U-shaped plate in this utility model.

[0013] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0014] Figure 4 This is a schematic diagram of the connection structure between the insert rod and the slot in this utility model.

[0015] Figure 5 This is a schematic diagram of the connection structure between the L-shaped rod and the stop rod in this utility model.

[0016] In the diagram: 1. Hook; 11. Connecting plate; 12. Fixing plate; 13. Connecting block; 14. First rotating shaft; 15. First gear; 16. Rack; 17. Second gear; 18. Second rotating shaft; 19. Third gear; 2. Fourth gear; 21. Third rotating shaft; 22. Baffle; 23. U-shaped plate; 3. Insert rod; 31. Slot; 32. L-shaped plate; 33. L-shaped rod; 34. Spring; 35. Stop rod; 36. Through groove; 37. Circular groove; 38. Fixing groove; 4. Horizontal plate; 41. Slide; 5. Vertical plate; 6. Clamping plate; 61. Clamping groove. Detailed Implementation

[0017] 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.

[0018] Example: Figure 1-5 As shown, this utility model provides an intelligent locking device for a crane hook, including a hook 1. A connecting plate 11 is provided at the top of the hook 1. Two symmetrically distributed fixing plates 12 are fixedly installed at the top of the connecting plate 11. A connecting block 13 is fixedly installed at the top of the fixing plate 12. A first rotating shaft 14 rotatably passes through the middle of the connecting block 13. A first gear 15 is fixedly installed on the outside of the first rotating shaft 14. A rack 16 is meshed with the outside of the first gear 15. A second gear 17 is meshed with the outside of the rack 16. A second rotating shaft 18 is fixedly installed in the middle of the second gear 17. A third gear 19 is fixedly installed on the outside of the first shaft 14, the second shaft 18, and the third shaft 2 are meshed with the outer side of the third gear 19. A third rotating shaft 21 is fixedly installed in the middle of the fourth gear 2. Two baffles 22 are symmetrically distributed and fixedly installed on the outside of the third rotating shaft 21. A U-shaped plate 23 is provided at the top of the connecting block 13. The first rotating shaft 14, the second rotating shaft 18, and the third rotating shaft 21 all rotate through the U-shaped plate 23. The first rotating shaft 14 is driven by a motor. The motor is installed on the U-shaped plate 23, and the driving end of the motor is fixedly connected to the first rotating shaft 14. The motor is controlled by an external controller.

[0019] A rod 3 is fixedly installed on the upper surface of the hook 1. A slot 31 for use with the rod 3 is opened through the middle of the connecting plate 11. An L-shaped plate 32 is fixedly installed on the right side of the fixing plate 12 away from the slot 31. An L-shaped rod 33 is slidably attached to the middle of the L-shaped plate 32. A spring 34 is provided on the outside of the L-shaped rod 33. One end of the spring 34 is fixedly connected to the L-shaped plate 32. A stop bar 35 that fits against the spring 34 is fixedly installed on both the upper and lower sides of the L-shaped rod 33. A through groove 36 for use with the stop bar 35 is opened through the middle of the right fixing plate 12. A circular groove 37 is opened through the middle of the through groove 36 in the middle of the right fixing plate 12. A fixing groove 38 for use with the L-shaped rod 33 is opened through the top of the rod 3. The L-shaped rod 33 passes through the left fixing plate 12.

[0020] A horizontal plate 4 is fixedly installed at the bottom end of the rack 16. A slide block 41 is slidably sleeved on the outside of the horizontal plate 4. The slide block 41 is fixedly connected to the inner wall of the U-shaped plate 23. By setting the horizontal plate 4 and the slide block 41, the rack 16 is supported, so that the rotation of the first gear 15 can drive the rack 16 to move.

[0021] Vertical plates 5 are fixedly installed at both ends of the horizontal plate 4. By setting the vertical plates 5, when the right vertical plate 5 contacts the right side of the slide 41, it means that the rack 16 can no longer move to the left. At the same time, it means that the baffle 22 is in contact with the opening of the hook 1. When the left vertical plate 5 contacts the left side of the slide 41, it means that the hook 1 and the baffle 22 have moved away from each other and away from the object to be lifted. This makes it clear where the rack 16 needs to be moved to so that it does not need to move anymore. At the same time, it also prevents the rack 16 from disengaging from the first gear 15 when moving to the left and from disengaging from the second gear 17 when moving to the right.

[0022] Both the front and rear sides of the insertion rod 3 are fixedly installed with a clamping plate 6, and the middle of the connecting plate 11 is provided with a slot 61 that works with the clamping plate 6. By setting the clamping plate 6 and the slot 61, the insertion rod 3, which is stuck in the slot 31, is more stable. At the same time, it is easier to align the L-shaped rod 33 with the fixing slot 38 to realize the installation between the hook 1 and the connecting plate 11.

[0023] The diameter of the circular groove 37 is larger than the diameter of the spring 34, which makes it easier for the spring 34 to move in the circular groove 37.

[0024] Working principle: In actual use, when it is necessary to lift an item, firstly, the motor is started by controlling the external controller. The motor drives the first rotating shaft 14 and the hook 1 to rotate, so that the hook 1 slowly engages with the hook on the item to be lifted. As the first rotating shaft 14 rotates, it drives the first gear 15 to rotate. The rotation of the first gear 15 drives the rack 16 to move from the right to the left. As the rack 16 moves, it meshes with the second gear 17, which drives the second rotating shaft 18 and the third gear 19 to rotate, thereby driving the fourth gear 2 to rotate. The meshing of the third gear 19 and the fourth gear 2 drives the third rotating shaft 21 and the baffle 22 to rotate in opposite directions, so that the baffle 22 moves closer to the hook 1 at the same time. When the hook 1 is fully engaged with the hook on the lifted item, the baffle 22 is just in contact with the opening of the hook 1, thereby locking the hook 1.

[0025] When installing the hook 1 and the connecting plate 11, insert the rod 3 on the hook 1 into the slot 31, so that the top surface of the hook 1 is in contact with the bottom surface of the connecting plate 11. At the same time, pull the L-shaped rod 33 so that the stop bar 35 on the L-shaped rod 33 corresponds to the through slot 36. Then the spring 34 loses resistance and drives the L-shaped rod 33 and the spring 34 to pass through the circular slot 37. The stop bar 35 passes through the through slot 36, and the L-shaped rod 33 passes through the fixing slot 38 on the rod 3. When the stop bar 35 is in contact with the rod 3, it means that the L-shaped rod 33 has completely passed through the rod 3 and through the fixing plate 12 on the left side, thus realizing the installation between the hook 1 and the connecting plate 11.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A crane hook intelligent locking device, comprising a hook (1), characterized in that: The top of the hook (1) is provided with a connecting plate (11), and two symmetrically distributed fixing plates (12) are fixedly installed on the top of the connecting plate (11). A connecting block (13) is fixedly installed on the top of the fixing plate (12). A first rotating shaft (14) is rotatably passed through the middle of the connecting block (13). A first gear (15) is fixedly installed on the outside of the first rotating shaft (14). A rack (16) is meshed with the outside of the first gear (15). A second gear (17) is meshed with the outside of the rack (16). A second rotating shaft (18) is fixedly installed in the middle of the first rotating shaft (14), a third gear (19) is fixedly installed on the outside of the second rotating shaft (18), a fourth gear (2) is meshed on the outside of the third gear (19), a third rotating shaft (21) is fixedly installed in the middle of the fourth gear (2), two baffles (22) are fixedly installed on the outside of the third rotating shaft (21), and a U-shaped plate (23) is provided at the top of the connecting block (13). The first rotating shaft (14), the second rotating shaft (18), and the third rotating shaft (21) all rotate through the U-shaped plate (23).

2. The intelligent locking device for a crane hook as described in claim 1, characterized in that, A rod (3) is fixedly installed on the upper surface of the hook (1). A slot (31) for use with the rod (3) is opened through the middle of the connecting plate (11). An L-shaped plate (32) is fixedly installed on the right side of the fixing plate (12) away from the slot (31). An L-shaped rod (33) is slidably attached to the middle of the L-shaped plate (32). A spring (34) is provided on the outside of the L-shaped rod (33). One end of the spring (34) is fixedly connected to the L-shaped plate (32). (33) has a stop bar (35) fixedly installed on both the upper and lower sides to fit the spring (34). A through groove (36) for use with the stop bar (35) is opened through the middle of the right fixed plate (12). A circular groove (37) is opened through the middle of the through groove (36) in the middle of the right fixed plate (12). A fixing groove (38) for use with the L-shaped rod (33) is opened through the top of the insert rod (3). The L-shaped rod (33) passes through the left fixed plate (12).

3. A crane hook intelligent locking device according to claim 1, characterized in that, A horizontal plate (4) is fixedly installed at the bottom end of the rack (16), and a slide block (41) is slidably sleeved on the outside of the horizontal plate (4). The slide block (41) is fixedly connected to the inner wall of the U-shaped plate (23).

4. A crane hook intelligent locking device according to claim 3, characterized in that, Vertical plates (5) are fixedly installed at both ends of the horizontal plate (4).

5. A crane hook intelligent locking device according to claim 2, characterized in that, The insert (3) is fixedly installed with a card plate (6) on both the front and rear sides, and the middle of the connecting plate (11) is provided with a card slot (61) that works with the card plate (6).

6. A crane hook intelligent locking device according to claim 2, characterized in that, The diameter of the circular groove (37) is larger than the diameter of the spring (34).

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