Anti-dropping hook of crane

Abstract

The utility model relates to the technical field of crane hooks, in particular to an anti-dropping hook of a crane, which comprises a hook, a fixed column is fixed at the top end of the hook, a buffer pad is adhered to the bottom end in the hook, and a hanging plate is mounted at the top end of the buffer pad. The anti-dropping hook has the beneficial effects that the spring is sprung to extend, and the two anti-dropping blocks are pushed to the middle of the hook and are intercepted above a hung object, so that the hung object is prevented from dropping from the hook; a second connecting plate and a clamping rod are arranged in a turnover mode through a connecting cylinder and a rotating rod, and a clamping bolt is arranged at the top end of the clamping rod, so that the two sides of an opening in the top end of the hook are connected in a reinforced mode, the strength of the hook is improved, and the weight of hung objects is increased.

Description

Technical Field

[0001] This utility model relates to the field of crane hook technology, and in particular to a crane anti-detachment hook. Background Technology

[0002] With social development, machinery plays an increasingly important role in people's daily lives and production. Due to its convenience and precision, machinery saves a lot of manpower and financial resources. Consequently, lifting equipment used for lifting large machinery has also developed and become an indispensable component. Traditional anti-detachment hooks are open hooks, which are prone to detachment when hooking or lifting goods, thus causing safety accidents and endangering the personal safety of workers.

[0003] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. With the continuous development of society, cranes are being used more and more widely. They not only have a large lifting capacity but also operate stably and can move while lifting heavy objects within a specific range. They are frequently used in ports, docks, factories, and other work locations. The connection between the crane and the heavy object is through hooks and lifting ropes. The crane hook is an essential component of a crane.

[0004] Therefore, a crane anti-detachment hook is proposed.

[0005] For example, the prior art Chinese patent publication number "CN215886030U" provides a crane anti-detachment hook, including a fixed hook, a slidably mounted limiting member on the fixed hook, a slidably mounted locking member on the fixed hook, and an elastic member on the locking member, the elastic member connecting the locking member to the fixed hook; the limiting member includes a limiting rod, the other end of the limiting rod is provided with a positioning block, the positioning block is provided with a positioning groove; the locking member includes a sliding frame, a rotatably mounted support shaft on the sliding frame, and a connecting rod frame on the support shaft; the fixed hook includes a hook body, a limiting groove on the hook body, a guide hole communicating with the limiting groove, an anti-detachment groove communicating with the guide hole, a mating hole on the hook body, and a sliding connection hole on the hook body.

[0006] This device is easy to operate and effectively limits the hanging objects, preventing them from falling off during transfer or other operations, thus protecting the personal safety of the operators. The limiting component, together with the fixing hook, forms a closed area, ensuring safety and stability.

[0007] Existing anti-detachment hooks for cranes have an inflexible anti-detachment structure, requiring manual opening and closing of the hook opening, which is inconvenient for quickly attaching items. Furthermore, the bottom of the hook's interior is subject to friction and wear after attaching items, which can easily lead to hook breakage due to the lack of protective structure. Additionally, when the hook is used to suspend heavy items, the hook opening is prone to bending under pressure, indicating insufficient strength. Utility Model Content

[0008] The purpose of this utility model is to solve the shortcomings of existing hook anti-detachment structures that are not flexible enough, require manual opening and closing of the hook opening, and are inconvenient for quickly hanging items. Therefore, a crane anti-detachment hook is proposed.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] Design a crane anti-detachment hook, including a hook, a fixing post fixed to the top of the hook, a buffer pad glued to the bottom of the hook, a hanging plate installed on the top of the buffer pad, first connecting plates fixed to both ends of the top of the hanging plate, a first connecting hole opened on the surface of the first connecting plate, a connecting rod passing through the inside of the first connecting hole, a nut connected to the top of the connecting rod at the top of the first connecting hole, a wear-resistant pad glued to the top of the hanging plate, an anti-detachment block slidably installed above the hanging plate, a guide rod fixed to the outside of the anti-detachment block, guide holes opened on both sides of the hook, the guide rod sliding through the guide holes, a spring slidably sleeved on the surface of the guide rod at the position between the guide hole and the anti-detachment block, and a limit plate fixed to the outer end of the guide rod.

[0011] Furthermore, a connecting cylinder is fixed to the outer side of the top of the hook, a rotating rod is rotatably installed inside the connecting cylinder, a second connecting plate is fixed to both ends of the rotating rod, a snap-fit ​​rod is fixed between the bottom ends of the two second connecting plates, a second connecting hole is opened on the top side of the hook, and a snap-fit ​​bolt is inserted into the second connecting hole.

[0012] Furthermore, the buffer pad is made of elastic rubber, the wear-resistant pad is made of wear-resistant rubber, the hanging plate has an arc-shaped concave structure, and the first connecting plate has a rectangular plate structure and is horizontally set.

[0013] Furthermore, the connecting rod is a threaded rod structure and is vertically fixed to the inner bottom end of the hook, and the bottom end of the hanging plate abuts against the top end of the buffer pad.

[0014] Furthermore, the anti-detachment block is a rectangular block structure and is horizontally arranged, with its top surface being an inclined surface structure, and the cross-sections of the guide rod and the guide hole are both rectangular structures.

[0015] Furthermore, the guide rod is horizontally positioned, the spring is positioned inside the hook, and the limiting plate is a rectangular plate structure, which is vertically positioned outside the hook.

[0016] Furthermore, the connecting cylinder has a cylindrical structure and is horizontally arranged, and the rotating rod has a round rod structure and is horizontally arranged, with its two ends protruding from the two ends of the connecting cylinder.

[0017] Furthermore, the second connecting plate is a rectangular plate structure and is inclinedly arranged above the open end of the hook. The second connecting hole is a threaded hole structure, and the snap-fit ​​bolt is horizontally arranged. The snap-fit ​​rod is horizontally snapped onto the outside of the hook and located at the bottom end of the snap-fit ​​bolt, which is also horizontally arranged.

[0018] The crane anti-detachment hook proposed in this utility model has the following advantages:

[0019] 1. This utility model provides guide holes on both sides of the hook, and the anti-detachment blocks are slidably installed inside the hook via guide rods. Thus, when the hook is used to hang an item, it first presses down on the inclined surface at the top of the anti-detachment block, causing the anti-detachment block to be pressed and retracted, thereby suspending the item. Then, the spring extends and pushes the two anti-detachment blocks to the middle of the hook, intercepting the item above it and preventing the item from falling off the hook.

[0020] 2. This utility model features a detachable hanging plate installed at the bottom of the hook via a connecting rod. A wear-resistant pad is bonded to the top of the hanging plate. Thus, the item is hung on the hook through the wear-resistant pad and the hanging plate, reducing friction and wear on the hook. Simultaneously, at the opening at the top of the hook, a second connecting plate and a locking rod are flipped up via a connecting cylinder and a rotating rod. A locking bolt is installed at the top of the locking rod, thereby reinforcing the connection on both sides of the opening at the top of the hook, increasing the strength of the hook and the weight of the hung item. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This utility model Figure 1 A schematic diagram of the hook section;

[0023] Figure 3 This utility model Figure 1 A schematic diagram of the mounting plate section;

[0024] Figure 4 This utility model Figure 1 A schematic diagram of the anti-detachment block section;

[0025] Figure 5 This utility model Figure 1 A schematic diagram of the snap-fit ​​rod section.

[0026] In the diagram: 1. Hook; 2. Limiting plate; 3. Guide rod; 4. Snap bolt; 5. Snap rod; 6. Second connecting plate; 7. Fixing post; 8. Anti-detachment block; 9. Connecting cylinder; 10. Rotating rod; 11. Spring; 12. First connecting plate; 13. Wear-resistant pad; 14. Hanging plate; 15. Connecting rod; 16. Buffer pad; 17. First connecting hole; 18. Guide hole; 19. Nut; 20. Second connecting hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example 1

[0029] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The figure shows a crane anti-detachment hook, including a hook 1, a fixing post 7 fixed to the top of the hook 1, a buffer pad 16 glued to the bottom of the hook 1, a hanging plate 14 installed on the top of the buffer pad 16, a first connecting plate 12 fixed to both ends of the top of the hanging plate 14, a first connecting hole 17 opened on the surface of the first connecting plate 12, a connecting rod 15 passing through the inside of the first connecting hole 17, a nut 19 connected to the top of the connecting rod 15 at the top of the first connecting hole 17, and a wear-resistant pad 13 glued to the top of the hanging plate 14.

[0030] An anti-detachment block 8 is slidably installed above the hanging plate 14. A guide rod 3 is fixed on the outside of the anti-detachment block 8. Guide holes 18 are opened on both sides of the hook 1. The guide rod 3 slides through the guide hole 18. A spring 11 is slidably sleeved on the surface of the guide rod 3 at the position between the guide hole 18 and the anti-detachment block 8. A limit plate 2 is fixed at the outer end of the guide rod 3.

[0031] Guide holes 18 are provided on both sides of the hook 1, and the anti-detachment block 8 is slidably installed inside the hook 1 through the guide rod 3. In this way, when the hook 1 hangs an item, it first presses down on the inclined surface at the top of the anti-detachment block 8, causing the anti-detachment block 8 to be pressed and retracted, thereby suspending the item. Then, the spring 11 springs and extends, pushing the two anti-detachment blocks 8 to the middle of the hook 1, intercepting the item above it, thereby preventing the item from falling off the hook 1.

[0032] The connecting rod 15 is a threaded rod structure and is vertically fixed to the bottom of the hook 1. The bottom of the hanging plate 14 abuts against the top of the buffer pad 16.

[0033] The anti-detachment block 8 is a rectangular block structure and is horizontally arranged. Its top surface is an inclined surface structure. The cross-sections of the guide rod 3 and the guide hole 18 are both rectangular structures.

[0034] The guide rod 3 is horizontally arranged, the spring 11 is arranged inside the hook 1, and the limiting plate 2 is a rectangular plate structure and is vertically arranged outside the hook 1.

[0035] Example 2

[0036] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The figure shows a crane anti-detachment hook, including a hook 1, a fixing post 7 fixed to the top of the hook 1, a buffer pad 16 glued to the bottom of the hook 1, a hanging plate 14 installed on the top of the buffer pad 16, a first connecting plate 12 fixed to both ends of the top of the hanging plate 14, a first connecting hole 17 opened on the surface of the first connecting plate 12, a connecting rod 15 passing through the inside of the first connecting hole 17, a nut 19 connected to the top of the connecting rod 15 at the top of the first connecting hole 17, and a wear-resistant pad 13 glued to the top of the hanging plate 14.

[0037] An anti-detachment block 8 is slidably installed above the hanging plate 14. A guide rod 3 is fixed on the outside of the anti-detachment block 8. Guide holes 18 are opened on both sides of the hook 1. The guide rod 3 slides through the guide hole 18. A spring 11 is slidably sleeved on the surface of the guide rod 3 at the position between the guide hole 18 and the anti-detachment block 8. A limit plate 2 is fixed at the outer end of the guide rod 3.

[0038] Guide holes 18 are provided on both sides of the hook 1, and the anti-detachment block 8 is slidably installed inside the hook 1 through the guide rod 3. In this way, when the hook 1 hangs an item, it first presses down on the inclined surface at the top of the anti-detachment block 8, causing the anti-detachment block 8 to be pressed and retracted, thereby suspending the item. Then, the spring 11 springs and extends, pushing the two anti-detachment blocks 8 to the middle of the hook 1, intercepting the item above it, thereby preventing the item from falling off the hook 1.

[0039] The buffer pad 16 is made of elastic rubber, the wear-resistant pad 13 is made of wear-resistant rubber, the hanging plate 14 has an arc-shaped concave structure, and the first connecting plate 12 has a rectangular plate structure and is horizontally set.

[0040] A connecting cylinder 9 is fixed to the outer side of the top of the hook 1. A rotating rod 10 is rotatably installed inside the connecting cylinder 9. A second connecting plate 6 is fixed to both ends of the rotating rod 10. A snap-fit ​​rod 5 is fixed between the bottom ends of the two second connecting plates 6. A second connecting hole 20 is opened at the top side of the hook 1. A snap-fit ​​bolt 4 is inserted into the second connecting hole 20.

[0041] A mounting plate 14 is detachably installed at the bottom of the hook 1 via a connecting rod 15. A wear-resistant pad 13 is bonded to the top of the mounting plate 14. In this way, the hooked item is hung on the hook 1 through the wear-resistant pad 13 and the mounting plate 14, reducing the friction and wear of the hook 1.

[0042] Meanwhile, at the opening at the top of the hook 1, the second connecting plate 6 and the snap-fit ​​rod 5 can be flipped and installed through the connecting cylinder 9 and the rotating rod 10, and the snap-fit ​​bolt 4 is installed at the top of the snap-fit ​​rod 5, thereby reinforcing the connection on both sides of the opening at the top of the hook 1, thereby increasing the strength of the hook 1 and increasing the weight of the hung items.

[0043] The connecting cylinder 9 is a cylindrical structure and is horizontally arranged. The rotating rod 10 is a round rod structure and is horizontally arranged, with its two ends protruding from the two ends of the connecting cylinder 9.

[0044] The second connecting plate 6 is a rectangular plate structure and is inclinedly arranged above the open end of the hook 1. The second connecting hole 20 is a threaded hole structure, and the snap-fit ​​bolt 4 is horizontally arranged. The snap-fit ​​rod 5 is horizontally snapped onto the outside of the hook 1 and located at the bottom end of the snap-fit ​​bolt 4. The snap-fit ​​bolt 4 is horizontally arranged.

[0045] Working method: Guide holes 18 are provided on both sides of the hook 1, and the anti-detachment block 8 is slidably installed inside the hook 1 through the guide rod 3. In this way, when the hook 1 hangs an item, it first presses down on the inclined surface at the top of the anti-detachment block 8, so that the anti-detachment block 8 is pressed and moves backward, thereby suspending the hanging item. Then, the spring 11 springs and extends, pushing the two anti-detachment blocks 8 to the middle of the hook 1, intercepting the hanging item above it, thereby preventing the hanging item from falling off the hook 1.

[0046] A mounting plate 14 is detachably installed at the bottom of the hook 1 via a connecting rod 15. A wear-resistant pad 13 is bonded to the top of the mounting plate 14. In this way, the hooked item is hung on the hook 1 through the wear-resistant pad 13 and the mounting plate 14, reducing the friction and wear of the hook 1.

[0047] Meanwhile, at the opening at the top of the hook 1, the second connecting plate 6 and the snap-fit ​​rod 5 can be flipped and installed through the connecting cylinder 9 and the rotating rod 10, and the snap-fit ​​bolt 4 is installed at the top of the snap-fit ​​rod 5, thereby reinforcing the connection on both sides of the opening at the top of the hook 1, thereby increasing the strength of the hook 1 and increasing the weight of the hung items.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crane anti-drop hook comprising a hook (1), characterized in that: The top end of the hook (1) is fixed with a fixed column (7), the inside bottom end of the hook (1) is bonded with a buffer pad (16), the top end of the buffer pad (16) is installed with a hanging plate (14), the top end of the hanging plate (14) is fixed with a first connecting plate (12) at both ends, the surface of the first connecting plate (12) is opened with a first connecting hole (17), the inside of the first connecting hole (17) is penetrated with a connecting rod (15), the top end of the connecting rod (15) is connected with a nut (19) at the top end of the first connecting hole (17), the top end of the hanging plate (14) is bonded with a wear-resistant pad (13), the top of the hanging plate (14) is slidingly installed with an anti-off block (8), the outer side of the anti-off block (8) is fixed with a guide rod (3), both sides of the hook (1) are opened with a guide hole (18), the guide rod (3) is slidingly penetrated through the guide hole (18), the surface of the guide rod (3) and the position between the guide hole (18) and the anti-off block (8) is slidingly sleeved with a spring (11), the outer end of the guide rod (3) is fixed with a limiting plate (2).

2. A load holding hook according to claim 1, characterised in that: The top end of the hook (1) is fixed with a connecting cylinder (9), the inside of the connecting cylinder (9) is rotatably installed with a rotating rod (10), the both ends of the rotating rod (10) are fixed with a second connecting plate (6), the bottom end between the two second connecting plates (6) is fixed with a clamping rod (5), the top end of the side of the hook (1) is opened with a second connecting hole (20), the inside of the second connecting hole (20) is inserted with a clamping bolt (4).

3. A load holding hook according to claim 1, characterised in that: The buffer pad (16) is made of elastic rubber material, the wear-resistant pad (13) is made of wear-resistant rubber material, the hanging plate (14) is arc concave structure, the first connecting plate (12) is rectangular plate structure and is horizontally arranged.

4. A load holding hook according to claim 1, characterised in that: The connecting rod (15) is a threaded rod structure and is vertically fixed at the inside bottom end of the hook (1), the bottom end of the hanging plate (14) abuts against the top end of the buffer pad (16).

5. A load holding hook according to claim 1, characterized in that: The anti-off block (8) is a rectangular block structure and is horizontally arranged, the top surface is an inclined surface structure, the guide rod (3) and the guide hole (18) are both rectangular structures in section.

6. A load holding hook according to claim 1, characterised in that: The guide rod (3) is horizontally arranged, the spring (11) is arranged at the inner side of the hook (1), the limiting plate (2) is a rectangular plate structure and is vertically arranged at the outer side of the hook (1).

7. A load holding hook according to claim 2, characterised in that: The connecting cylinder (9) is a cylindrical structure and is horizontally arranged, the rotating rod (10) is a circular rod structure and is horizontally arranged, the both ends protrude from the both ends of the connecting cylinder (9).

8. A load holding hook according to claim 2, characterised in that: The second connecting plate (6) is a rectangular plate structure and is obliquely arranged above the opening end of the hook (1), the second connecting hole (20) is a threaded hole structure, the clamping bolt (4) is horizontally arranged, the clamping rod (5) is horizontally clamped at the outer side of the hook (1) and is located at the bottom end of the clamping bolt (4), the clamping bolt (4) is horizontally arranged.

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