A multifunctional crane accessory quick change device

Abstract

This utility model discloses a multifunctional crane accessory quick-change device, relating to the field of crane equipment technology. The utility model includes a positioning plate and a lifting device. The lifting device is installed below the positioning plate. A fixed frame is fixedly installed at the bottom of the positioning plate. A threaded rod is rotatably installed inside the fixed frame. Two threaded sliders are threadedly fitted onto the outer side of the threaded rod. Rotating plates are rotatably installed on both sides of the threaded sliders. A fixed plate is fixedly installed at the bottom of the positioning plate. Symmetrically distributed insert rods are movably inserted into the fixed plate. Symmetrically distributed external slots are fixedly installed at the bottom of the positioning plate. Symmetrically distributed connecting plates are fixedly installed at the top of the lifting device, and the connecting plates are movably inserted into the external slots. This utility model, through the coordinated structure of the threaded rod, threaded sliders, insert rods, and external slots, allows for the replacement and installation of different lifting devices, enabling quick replacement of different lifting devices in different working environments, thereby improving replacement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of crane equipment technology, specifically a multi-functional crane accessory quick-change device. Background Technology

[0002] A crane is a mechanical device used for lifting, hoisting, and moving heavy objects, widely used in construction sites, ports, factories, and warehouses. It connects to heavy objects through various attachments (such as hooks, grabs, and slings), relying on a fixed support structure and a movable boom to achieve operations at different angles and heights. Cranes come in various types, including tower cranes, wheeled cranes, and crawler cranes, to meet the needs of different loads and operating environments. Crane attachments are various devices and accessories used to assist cranes in lifting, moving, and securing objects, typically connected to the crane main unit via hooks, chains, or joints. These attachments include hooks, grabs, slings, clamps, and electromagnetic lifting devices, adaptable to different shapes and types of loads according to operational needs, thereby improving operational efficiency and safety. Crane attachments play a vital role in industries such as construction, manufacturing, and logistics.

[0003] When hoisting different goods, it is necessary to change different hooks, grippers, slings or electromagnetic tools to facilitate the hoisting of goods. However, the operation of changing different hooks and other lifting tools with existing accessories is too complicated, making the replacement cumbersome and the installation not stable enough. In order to solve the above problems, the inventor proposes a multi-functional crane accessory quick change device. Utility Model Content

[0004] To address the issue of complex operations during the replacement of different lifting devices, the purpose of this utility model is to provide a multifunctional crane accessory quick-change device.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a multi-functional crane accessory quick-change device, including a positioning plate and a lifting device, wherein the lifting device is installed below the positioning plate, a fixed frame is fixedly provided at the bottom of the positioning plate, a threaded rod is rotatably provided inside the fixed frame, two threaded sliders are threadedly sleeved on the outside of the threaded rod, rotating plates are rotatably provided on both sides of the threaded sliders, a fixed plate is fixedly provided at the bottom of the positioning plate, symmetrically distributed insert rods are movably inserted into the fixed plate, a symmetrically distributed external slot is fixedly provided at the bottom of the positioning plate, a symmetrically distributed connecting plate is fixedly provided at the top of the lifting device, the connecting plate is movably inserted into the external slot, the insert rods are movably inserted through the external slot and the connecting plate, and the ends of the four rotating plates away from the threaded sliders are respectively rotatably connected to the four insert rods.

[0006] Preferably, the top of the lifting device is fixed with symmetrically distributed L-shaped plates on both sides, and bolts are fixed at the top of the L-shaped plates. The positioning plate has connecting slots arranged in a rectangular array. The four bolts are movably inserted into the four connecting slots. Hexagonal nuts are threaded on the outside of the bolts, and the four hexagonal nuts are located at the top of the positioning plate.

[0007] Preferably, the top of the positioning disk is fixed with connecting rings arranged in a rectangular array, and steel wire ropes are installed on the outside of the four connecting rings. The ends of the steel wire ropes are sleeved on the outside of the connecting rings, and the bottom of the lifting device is fixed with hooks arranged in a rectangular array.

[0008] Preferably, the top of the lifting device is fixed with symmetrically distributed buffer pads on both sides, the top of the buffer pads is in contact with the positioning plate, the connecting plate is provided with symmetrically distributed circular grooves, the insertion rod is movably inserted into the circular grooves, and the end of the threaded rod is fixed with a rotating component.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. In this utility model, by setting up a threaded rod, a threaded slider, a plug rod, an external sliding groove and other structures to cooperate with each other, different lifting tools can be replaced and installed, so that different lifting tools can be quickly replaced in different working environments, thereby improving the efficiency of replacement;

[0011] 2. In this utility model, by setting bolts, connecting grooves, hexagonal nuts and L-shaped plates and other structures to cooperate with each other, the accessories can be reinforced after installation to prevent them from falling off during operation, thereby improving stability. Attached Figure Description

[0012] 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.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a side view of the overall structure of this utility model;

[0015] Figure 3 This is a cross-sectional schematic diagram of the positioning disk and its connecting structure of this utility model;

[0016] Figure 4 This utility model Figure 3Enlarged structural diagram at point A in the middle;

[0017] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B.

[0018] In the diagram: 1. Positioning plate; 11. Lifting device; 12. Connecting ring; 13. Wire rope; 14. Hook; 15. Buffer pad; 2. Fixing frame; 21. Threaded rod; 22. Threaded slider; 23. Rotating plate; 24. Fixing plate; 25. Insert rod; 26. External slot; 27. Connecting plate; 28. Circular groove; 29. ​​Rotating component; 3. L-shaped plate; 31. Bolt; 32. Connecting groove; 33. Hexagonal nut. Detailed Implementation

[0019] 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.

[0020] Example: Figure 1-5 As shown, this utility model provides a multifunctional crane accessory quick-change device, including a positioning plate 1 and a lifting device 11. The lifting device 11 includes a hook, grab bucket, sling, clamp, and electromagnetic lifting device 11, etc. By changing different lifting devices 11, different goods can be transferred. The lifting device 11 is installed below the positioning plate 1. A fixed frame 2 is fixedly provided at the bottom of the positioning plate 1. A threaded rod 21 is rotatably provided inside the fixed frame 2. Two threaded sliders 22 are threadedly sleeved on the outside of the threaded rod 21. Rotating plates 23 are rotatably provided on both sides of the threaded sliders 22. The movement of the threaded sliders 22 can drive the rotating plates 23 to move. The rotation drives the insertion rod 25 to move. A fixed plate 24 is fixedly provided at the bottom of the positioning plate 1. The insertion rods 25 are symmetrically distributed and movably inserted into the fixed plate 24. The bottom of the positioning plate 1 is fixedly provided with symmetrically distributed external slots 26. The top of the lifting device 11 is fixedly provided with symmetrically distributed connecting plates 27. The connecting plates 27 are movably inserted into the external slots 26. The insertion rods 25 are movably inserted through the external slots 26 and the connecting plates 27. The ends of the four rotating plates 23 away from the threaded slider 22 are rotatably connected to the four insertion rods 25 respectively. The positioning of the lifting device 11 is completed by inserting the insertion rods 25 into the external slots 26 and the connecting plates 27.

[0021] The top of the lifting device 11 is fixed with L-shaped plates 3 that are symmetrically distributed on both sides. Bolts 31 are fixed at the top of the L-shaped plates 3. The positioning plate 1 has connecting slots 32 that are distributed in a rectangular array. Four bolts 31 are movably inserted into the four connecting slots 32. Hexagonal nuts 33 are threaded on the outside of the bolts 31. The four hexagonal nuts 33 are located at the top of the positioning plate 1.

[0022] By adopting the above technical solution, the lifting device 11 can be reinforced to prevent it from falling or other accidents.

[0023] The top of the positioning disk 1 is fixed with connecting rings 12 arranged in a rectangular array, and steel wire ropes 13 are installed on the outside of the four connecting rings 12.

[0024] By adopting the above technical solution, the connecting ring 12 is connected to the wire rope 13.

[0025] The end of the wire rope 13 is sleeved on the outside of the connecting ring 12.

[0026] By adopting the above technical solution, the wire rope 13 can be installed on the connecting ring 12.

[0027] The bottom end of the lifting device 11 is fixed with hooks 14 arranged in a rectangular array.

[0028] By adopting the above technical solution, the hook 14 can be used to lift and load goods.

[0029] The top of the lifting device 11 is fixed with symmetrically distributed buffer pads 15 on both sides, and the top of the buffer pads 15 is in contact with the positioning plate 1.

[0030] By adopting the above technical solution, the buffer pad 15 can achieve the purpose of buffering.

[0031] The connecting plate 27 has symmetrically distributed circular grooves 28, and the insertion rod 25 is movably inserted into the circular grooves 28.

[0032] By adopting the above technical solution, the insertion rod 25 is inserted into the circular groove 28, thereby enabling the connection and installation of the lifting device 11 and the positioning plate 1.

[0033] A rotating part 29 is fixedly provided at the end of the threaded rod 21.

[0034] By adopting the above technical solution, the rotating part 29 is an internal hexagonal rotating block, which can be driven to rotate by an internal hexagonal wrench.

[0035] Working principle: First, the wire rope 13 is connected and installed with the crane equipment. When the lifting device 11 needs to be replaced or installed, the rotating part 29 is rotated by the tool, which drives the threaded rod 21 to rotate. The rotation of the threaded rod 21 drives the two threaded sliders 22 to move. The movement of the threaded sliders 22 drives the four insert rods 25 to move laterally through the rotating plate 23, so that the insert rods 25 disengage from the circular groove 28 and the external slot 26, thereby causing the insert rods 25 to lose their limiting position on the connecting plate 27, and then lose their limiting position on the lifting device 11. Then the hexagonal nut 33 can be removed, and the lifting device 11 can be disassembled. Different lifting devices 11 (hook, grab, sling, clamp and electromagnetic lifting device 11, etc.) can be installed on the positioning plate 1. Finally, by reversing the above operations, the installation limiting position of the replaced lifting device 11 can be set, thereby achieving the purpose of convenient installation and replacement.

[0036] 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 multi-functional crane accessory quick-change device, comprising a positioning plate (1) and a lifting device (11), characterized in that: The lifting device (11) is installed below the positioning plate (1). The bottom end of the positioning plate (1) is fixedly provided with a fixed frame (2). A threaded rod (21) is rotatably provided inside the fixed frame (2). Two threaded sliders (22) are threadedly sleeved on the outside of the threaded rod (21). Rotating plates (23) are rotatably provided on both sides of the threaded sliders (22). The bottom end of the positioning plate (1) is fixedly provided with a fixed plate (24). A symmetrically distributed insert rod (25) is movably inserted inside the fixed plate (24). The bottom end of the positioning plate (1) is fixedly provided with a symmetrically distributed external slot (26). The top end of the lifting device (11) is fixedly provided with a symmetrically distributed connecting plate (27). The connecting plate (27) is movably inserted into the external slot (26). The insert rod (25) is movably inserted through the external slot (26) and the connecting plate (27). The ends of the four rotating plates (23) away from the threaded sliders (22) are rotatably connected to the four insert rods (25) respectively.

2. The multi-functional crane accessory quick-change device as described in claim 1, characterized in that: The top of the lifting device (11) is fixed with L-shaped plates (3) that are symmetrically distributed on both sides. The top of the L-shaped plates (3) is fixed with bolts (31). The positioning disk (1) has connecting slots (32) that are distributed in a rectangular array. The four bolts (31) are movably inserted into the four connecting slots (32). The bolts (31) are threaded with hexagonal nuts (33) on the outside of the bolts (31). The four hexagonal nuts (33) are located at the top of the positioning disk (1).

3. The multi-functional crane accessory quick-change device as described in claim 1, characterized in that: The top of the positioning disk (1) is fixed with connecting rings (12) arranged in a rectangular array, and steel wire ropes (13) are installed on the outside of the four connecting rings (12).

4. The multi-functional crane accessory quick-change device as described in claim 3, characterized in that: The end of the wire rope (13) is sleeved on the outside of the connecting ring (12).

5. The multi-functional crane accessory quick-change device as described in claim 1, characterized in that: The bottom end of the lifting device (11) is fixed with hooks (14) arranged in a rectangular array.

6. The multi-functional crane accessory quick-change device as described in claim 1, characterized in that: The top of the lifting device (11) is fixed with symmetrically distributed buffer pads (15) on both sides, and the top of the buffer pads (15) is in contact with the positioning plate (1).

7. The multifunctional crane accessory quick-change device as described in claim 1, characterized in that: The connecting plate (27) has symmetrically distributed circular grooves (28), and the insertion rod (25) is movably inserted into the circular grooves (28).

8. The multi-functional crane accessory quick-change device as described in claim 1, characterized in that: The threaded rod (21) is fixedly provided with a rotating part (29) at its end.

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