Detachable multifunctional lifting lug

Abstract

The application relates to a detachable multifunctional lifting lug, belonging to the technical field of mechanical engineering, which comprises a connecting mechanism, the front side of the connecting mechanism is fixedly connected with a limiting mechanism; the connecting mechanism comprises a base plate, the front side of the base plate is fixedly connected with a cross vertical plate, the outer portion of the cross vertical plate is fixedly connected with a supporting column, the front side of the supporting column is fixedly connected with a top plate, the inner wall of the base plate is screw-connected with a plurality of nuts I, the limiting mechanism comprises a fixed block, the rear side of the fixed block is fixedly connected with the front side of the top plate, the inner wall of the fixed block is fixedly connected with a connecting plate, and the front side inner wall of the fixed block is screw-connected with a nut II. The application has the effect that the base plate and the rack are conveniently installed and detached by rotating the nut I, the nut I is screw-rotated in the mounting hole, and the convenience of the lifting lug installation and detachment is improved.

Description

Technical Field

[0001] This application relates to the field of mechanical engineering technology, and in particular to a detachable multi-functional lifting lug. Background Technology

[0002] As a key component in lifting operations, the lifting lugs serve to provide a reliable lifting connection point for the object. By working with lifting equipment such as hooks and wire ropes, they evenly transmit the lifting force to the object, preventing damage caused by localized stress concentration. At the same time, properly designed lifting lugs can ensure that the object remains balanced and stable during lifting, handling, and installation, effectively avoiding safety hazards such as swaying, tilting, or even falling. This significantly improves the safety and efficiency of lifting operations, and they are widely used in various scenarios requiring lifting operations, such as construction, machinery manufacturing, and ship loading and unloading.

[0003] When the lifting lugs are in operation, they form a stable force support point through their fixed connection with the object being lifted. When the hook or rope of the lifting equipment catches the lifting lugs, the lifting force is transmitted to the object being lifted through the structure of the lifting lugs. By utilizing the strength of the materials and a reasonable structural design, the concentrated load is distributed into a uniform force. At the same time, the position and layout of the lifting lugs ensure that the center of gravity of the object being lifted coincides with the lifting force line, thereby maintaining the balance of the object during the lifting process and avoiding deformation or imbalance caused by uneven force, thus achieving safe and stable lifting operations.

[0004] However, in existing technologies, some lifting lugs are directly welded to the frame, resulting in poor flexibility. Since welding is a permanent connection, once the lifting lug is welded, its position cannot be easily adjusted. If subsequent changes in production needs or equipment modifications require rearranging the lifting lug, the original lug must be cut and re-welded, which is not only time-consuming and labor-intensive but also prone to damaging the frame structure. Furthermore, fixed welded lifting lugs are difficult to adapt to different specifications and types of lifting equipment. When lifting operations require changing hooks or ropes with different connection methods, the lifting lug structure cannot be flexibly adjusted to meet new requirements, resulting in poor versatility and flexibility. This significantly limits the efficiency of lifting operations and increases equipment maintenance and transportation costs for enterprises. Therefore, a detachable, multi-functional lifting lug is proposed to solve these problems. Utility Model Content

[0005] The purpose of this application is to provide a detachable multi-functional lifting lug, which aims to improve the problem of poor flexibility when the lifting lug is directly welded and fixed to the frame.

[0006] The detachable multi-functional lifting lug provided in this application adopts the following technical solution: A detachable multi-functional lifting lug includes a connecting mechanism, and a limiting mechanism is fixedly connected to the front side of the connecting mechanism; the connecting mechanism includes a base plate, a cross vertical plate is fixedly connected to the front side of the base plate, a support column is fixedly connected to the outside of the cross vertical plate, a top plate is fixedly connected to the front side of the support column, and a plurality of nuts are threadedly connected to the inner wall of the base plate. Through the above technical solution: when installing and disassembling the detachable multi-functional lifting lug, by rotating the multiple nuts connected by the threads on the inner wall of the base plate, the nuts rotate in the mounting hole and generate axial displacement, thereby driving the base plate to fit tightly or separate from the frame, realizing the rapid installation and disassembly of the lifting lug.

[0007] Preferably, the limiting mechanism includes a fixing block, the rear side of which is fixedly connected to the front side of the top plate, a connecting plate fixedly connected to the inner wall of the fixing block, a second nut threadedly connected to the inner wall of the front side of the fixing block, a plurality of limiting holes opened on the front side of the fixing block, a first rotating shaft rotatably connected to the top end of the connecting plate, a limiting plate fixedly connected to the outside of the first rotating shaft, a second rotating shaft fixedly connected to the rear side of the limiting plate, and fixed chambers rotatably connected to both ends of the second rotating shaft. By adopting the above technical solution, rotating nut two causes nut two to rotate on the inner wall of the front side of the fixing block and the inner thread of the connecting plate, which drives the connecting plate to move along the limiting hole on the front side of the fixing block, and then drives the limiting plate to rotate around the rotating shaft two through the rotating shaft one; with the support of the fixed chamber on the rotating shaft two, the limiting plate can flexibly adjust its position and angle to adapt to the installation requirements of different suspension ropes.

[0008] Preferably, the bottom end of the fixing chamber is fixedly connected to the top end of the base plate, and the bottom end of the fixing chamber is fixedly connected to the top end of the cross vertical plate; By adopting the above technical solution, the bottom end of the fixed chamber is fixedly connected to the base plate and the top end of the cross vertical plate, providing a stable support base for the restriction plate, so that the restriction plate can rotate flexibly around the second pivot.

[0009] Preferably, a slot is provided on the front side of the fixed compartment, and the rear side of the limiting plate is slidably connected to the front inner wall of the fixed compartment. By adopting the above technical solution, the slot on the front side of the fixed compartment and the outer rear side of the limiting plate form a sliding fit structure. When it is necessary to adjust the position of the limiting plate, the limiting plate can slide along the slot on the inner wall of the front side of the fixed compartment to change the extension length and angle of the limiting plate.

[0010] Preferably, the inner wall of the front side of the limiting plate is provided with a slot, and the top end of the connecting plate is slidably connected to the inner wall of the front side of the limiting plate. By adopting the above technical solution, the groove on the inner wall of the front side of the limiting plate and the outer top of the connecting plate form a sliding connection structure. When the second nut is rotated, the connecting plate can slide along the groove on the inner wall of the front side of the limiting plate under the drive of the second nut.

[0011] Preferably, the external thread of the second nut is connected to the inner wall of the connecting plate, and the external thread of the second nut is connected to the inner wall of the limiting hole; By adopting the above technical solution, when the second nut is rotated, the second nut, by means of the thread engagement between its external thread and the inner wall of the connecting plate and the inner wall of the limiting hole, generates axial displacement on the inner wall of the front side of the fixing block, thereby driving the connecting plate to move along the direction of the limiting hole.

[0012] Preferably, the outer side of the cross-shaped vertical plate has multiple lifting holes, and the inner side of the base plate has multiple mounting holes; By adopting the above technical solution, the multiple lifting holes on the outside of the cross vertical plate provide connection points for the lifting ropes. The position of the lifting holes can be flexibly selected according to the lifting requirements to adapt to lifting objects of different weights and shapes. The multiple mounting holes inside the base plate cooperate with the nut. By rotating the nut in the mounting hole, the base plate and the frame can be fastened or disassembled.

[0013] Preferably, the rear side of the support column is fixedly connected to the front side of the base plate, and the external threads of the plurality of nuts are connected to the inner walls of the plurality of mounting holes; By adopting the above technical solution, the fixed connection between the rear side of the support column and the front side of the base plate forms a stable support structure, providing solid support for the top plate and the limiting mechanism; multiple nuts, through threaded engagement with the mounting holes inside the base plate, generate axial displacement during rotation, causing the base plate to fit tightly or separate from the frame, realizing the rapid installation and disassembly of the lifting lugs, ensuring the stability and efficiency of the lifting operation.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. In this utility model, the base plate and the frame are detachably connected by rotating the first nut, which rotates in the mounting hole. The cross vertical plate ensures the overall structural strength. The lifting rope can be sleeved on the support cylinder for overhead crane operation. The top plate is used to prevent the lifting slippage from the support cylinder, thereby achieving the effect of convenient installation and disassembly of the base plate and the frame, and improving the convenience of installation and disassembly of the lifting lugs.

[0015] 2. In this utility model, by rotating the second nut, the second nut rotates in the limiting hole and the internal thread of the connecting plate, causing the connecting plate to slide along the limiting plate. Then, the first rotating shaft drives the limiting plate to rotate around the second rotating shaft, so that the limiting plate can adapt to different positions of the lifting ropes on the support column, thereby achieving the effect of flexibly adjusting the position of the limiting plate to engage different lifting ropes, preventing the lifting ropes from falling off, and improving the safety of hoisting. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a detachable multi-functional lifting lug proposed in this utility model; Figure 2 This is a schematic diagram of the connection mechanism for a detachable multifunctional lifting lug proposed in this utility model; Figure 3 This is a schematic diagram of the fixing block for a detachable multifunctional lifting lug proposed in this utility model; Figure 4 This is a schematic diagram of the support column for a detachable multifunctional lifting lug proposed in this utility model; Explanation of reference numerals in the attached drawings: 1. Connecting mechanism; 11. Base plate; 12. Cross vertical plate; 13. Support column; 14. Top plate; 15. Nut 1; 16. Lifting hole; 17. Mounting hole; 2. Restricting mechanism; 21. Fixing block; 22. Connecting plate; 23. Nut 2; 24. Limiting hole; 25. Rotating shaft 1; 26. Restricting plate; 27. Fixing chamber; 28. Rotating shaft 2. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0018] Example: A detachable multi-functional lifting lug, see reference. Figures 1 to 3 The system includes a connecting mechanism 1, with a limiting mechanism 2 fixedly connected to the front of the connecting mechanism 1. The connecting mechanism 1 serves as the basic support structure for the lifting lug. Through the fixed connection between the front and the limiting mechanism 2, a collaborative working system of installation support and limiting protection is formed. The connecting mechanism 1 is responsible for detachably fixing to the frame and providing a force support point for the lifting operation, while the limiting mechanism 2 limits the position of the lifting rope through the subsequent structure. The two are fixedly connected to form a functionally complementary whole, ensuring that the lifting lug can be stably installed during the lifting process and preventing the lifting rope from falling off, thereby improving the safety of the operation. Specifically, the connecting mechanism 1 serves as the basic structure, and is fixedly connected to the limiting mechanism 2 at the front, combining the two into a whole. During hoisting operations, the connecting mechanism 1 is responsible for a secure connection with the frame, while the limiting mechanism 2 can limit the hoisting rope. The two work together to ensure that the lifting lugs can be reliably installed and that the hoisting rope can be effectively prevented from falling off.

[0019] The connecting mechanism 1 includes a base plate 11. A cross-shaped vertical plate 12 is fixedly connected to the front side of the base plate 11. A support column 13 is fixedly connected to the outside of the cross-shaped vertical plate 12. The support column 13 enhances the bending strength of the cross-shaped vertical plate 12 and prevents the cross-shaped vertical plate 12 from deforming due to force during hoisting. On the other hand, the support column 13 provides a front support point for the top plate 14 and the limiting mechanism 2. The top plate 14 is fixedly connected to the front side of the support column 13. The top plate 14 transmits the force of the limiting mechanism 2 to the support column 13 and the cross-shaped vertical plate 12 through the fixed connection with the support column 13, and then transmits it to the base plate 11 and the frame. Multiple nuts 15 are threadedly connected to the inner wall of the base plate 11. When the nuts 15 are tightened, the base plate 11 and the frame fit tightly together. The self-locking characteristic of the threaded connection realizes the stable installation of the lifting lug. When the nuts 15 are loosened, the base plate 11 separates from the frame, which facilitates the disassembly and transfer of the lifting lug. Specifically, the base plate 11, as the core load-bearing component, is detachably fixed to the frame through the nut 15 connected by the inner wall thread; the cross vertical plate 12, the support column 13 and the top plate 14 are fixedly connected in sequence to form a stable three-dimensional support structure. The cross vertical plate 12 and the support column 13 provide lateral and vertical support, while the top plate 14 can bear the restraint mechanism 2.

[0020] Reference Figures 2 to 4 The limiting mechanism 2 includes a fixing block 21, whose rear side is fixedly connected to the front side of the top plate 14. The block structure of the fixing block 21 provides an installation carrier for internal components such as the connecting plate 22 and nut 23, and transmits the tension of the suspension rope from the limiting plate 26 through the top plate 14, support column 13, and cross vertical plate 12 to the base plate 11 and frame. The connecting plate 22 is fixedly connected to the inner wall of the fixing block 21. When the nut 23 rotates, it drives the connecting plate 22 to move up and down along the inner wall of the fixing block 21 via threaded transmission, thereby driving the limiting plate 26 to rotate via the rotating shaft 25. Nut 23 is threadedly connected to the inner front wall of the fixing block 21. When the operator rotates nut 23, it generates axial displacement under the action of threaded transmission, causing the connecting plate 22 to move along the direction of the limiting hole 24 on the front side of the fixing block 21, thereby adjusting the angle of the limiting plate 26. Specifically, the fixed block 21 obtains stable support through its fixed connection with the top plate 14, and the fixing of the connecting plate 22 on the inner wall of the fixed block 21 provides a connection basis for the subsequent structure. When the second nut 23 is rotated, its threaded rotation on the inner wall of the front side of the fixed block 21 generates axial displacement, which drives the connecting plate 22 to move, thereby driving the limiting plate 26 connected to the connecting plate 22 to adjust its angle and position.

[0021] The front side of the fixing block 21 has multiple limiting holes 24. Nut 23 passes through the limiting holes 24 and is threadedly connected to the connecting plate 22. The limiting holes 24 restrict the radial movement of nut 23, allowing it to move only axially, thereby precisely controlling the movement direction of the connecting plate 22. A rotating shaft 25 is rotatably connected inside the top of the connecting plate 22. When the connecting plate 22 moves up and down under the drive of nut 23, the rotating shaft 25 rotates within the rotating hole of the connecting plate 22, causing the limiting plate 26 to rotate around the rotating shaft 28, thus achieving angle adjustment. The limiting plate 26 is fixedly connected to the outside of the rotating shaft 25. When the rotating shaft 25 rotates under the drive of the connecting plate 22, the limiting plate 26 rotates around the rotating shaft 28. Its front surface can fit the suspension rope at different angles, and the friction and the slot structure prevent the suspension rope from falling off. A rotating shaft 28 is fixedly connected to the rear interior of the limiting plate 26. The fixed connection between the rotating shaft 28 and the limiting plate 26 provides a stable rotation center for the limiting plate 26. Its diameter and strength are designed according to the lifting load to ensure that it does not deform when subjected to the tension of the lifting rope, thus maintaining the limiting accuracy of the limiting plate 26. Fixed chambers 27 are rotatably connected to both ends of the rotating shaft 28. The outer side of the fixed chamber 27 is fixed to the base plate 11, the top plate 14 or other supporting structures, while the inner side provides support and protection for the rotating shaft 28. Specifically, when the second nut 23 is rotated, its thread rotation in the limiting hole 24 causes the connecting plate 22 to move. The connecting plate 22 drives the limiting plate 26 to rotate around the second rotating shaft 28 through the first rotating shaft 25. The fixed chamber 27 provides support to both ends of the second rotating shaft 28 to ensure that the limiting plate 26 rotates smoothly.

[0022] Reference Figures 1 to 3 The bottom end of the fixed chamber 27 is fixedly connected to the top end of the base plate 11. The base plate 11, as the bottom load-bearing structure, is usually made of thick steel plate, which can provide a stable mounting surface for the fixed chamber 27. The bottom end of the fixed chamber 27 is fixedly connected to the top end of the cross vertical plate 12. This prevents the fixed chamber 27 from tilting during operation and further improves the stability of the structure. A slot is provided on the front side of the fixed chamber 27. The slot is a key structure for realizing the connection and functional coordination between the fixed chamber 27 and the limiting plate 26. It defines a precise trajectory for the movement of the limiting plate 26, making the movement of the limiting plate 26 on the front side of the fixed chamber 27 controllable. The rear side of the limiting plate 26 is slidably connected to the front inner wall of the fixed chamber 27. The operator can manually or mechanically drive the limiting plate 26 to slide on the front inner wall of the fixed chamber 27. Specifically, the fixed chamber 27 forms a stable support structure through a fixed connection with the base plate 11 and the cross vertical plate 12; the outer rear side of the limiting plate 26 slides in a slot with the inner front side of the fixed chamber 27, so that the limiting plate 26 can move along the slot and rotate around the second pivot 28.

[0023] A slot is provided on the inner front wall of the limiting plate 26. This slot provides a sliding guide and mounting base for the connecting plate 22, ensuring that the connecting plate 22 can slide smoothly on the inner front wall of the limiting plate 26. When it is necessary to fix the connecting plate 22, the connecting plate 22 can be fixed in position by engaging with the slot using components such as nut 23. The top of the connecting plate 22 is externally slidably connected to the inner front wall of the limiting plate 26. During structural operation, the height of the connecting plate 22 can be adjusted according to actual needs to adapt to different working scenarios and component installation requirements. The external thread of nut 23 is connected to the inner wall of the connecting plate 22. The threaded connection provides good tightness and adjustability, allowing operators to easily adjust and fix the position of the connecting plate 22 as needed. The external thread of nut 23 is also connected to the inner wall of the limiting hole 24. Nut 23 is threadedly connected to both the inner wall of the connecting plate 22 and the inner wall of the limiting hole 24, providing a double fixing function to firmly fix the connecting plate 22 in a specific position. Specifically, when rotating nut 23, it engages with the inner wall of connecting plate 22 and the inner wall of limiting hole 24 through threaded contact, causing connecting plate 22 to slide along the groove on the front inner wall of limiting plate 26; the sliding of connecting plate 22 drives limiting plate 26 to rotate around rotating shaft 28 through rotating shaft 1 25, so that the position and angle of limiting plate 26 can be adjusted, thereby adapting to different ropes and preventing them from falling off.

[0024] The cross-shaped vertical plate 12 has multiple lifting holes 16 on its exterior, allowing for convenient hoisting of the cross-shaped vertical plate 12 and its connected components. The base plate 11 has multiple mounting holes 17 inside. These mounting holes 17 are used to install bolts, screws, and other connectors, which fix the base plate 11 to the frame. The rear side of the support column 13 is fixedly connected to the front side of the base plate 11, transferring the weight of the base plate 11 and its components to the ground or other supporting structures, enhancing the stability and load-bearing capacity of the structure. Multiple nuts 15 have external threads that connect to the inner walls of the mounting holes 17. The cooperation of the nuts 15 and the mounting holes 17 further enhances the stability and reliability of the connection, preventing loosening of components during use and ensuring the stability of the entire structure during operation. Specifically, the multiple lifting holes 16 on the outside of the cross plate 12 provide diverse connection points for the lifting ropes, which can be selected to suit different lifting objects as needed; the mounting holes 17 inside the base plate 11 are threadedly engaged with the nut 15, and rotating the nut 15 causes the base plate 11 to be fastened or separated from the frame; the rear side of the support column 13 is fixed to the front side of the base plate 11, providing stable support for the cross plate 12, the top plate 14 and the limiting mechanism 2, ensuring reliable force transmission during lifting.

[0025] The implementation principle of this application embodiment is as follows: When installing and disassembling the detachable multi-functional lifting lug and the frame, the nut 15, as the core driving structure, rotates through the thread on the inner wall of the mounting hole 17 inside the base plate 11, driving the base plate 11 to move back and forth, so as to achieve close contact installation or separation and disassembly between the base plate 11 and the frame, thereby realizing the effect of quick and stable installation and convenient disassembly of the lifting lug and the frame. This not only improves the efficiency of installation and disassembly, but also facilitates the flexible application and transfer of the lifting lug under different working conditions. At the same time, it reduces the operational difficulty and labor intensity during the installation and disassembly process, and ensures the efficient implementation of lifting operations.

[0026] When the limiting plate 26 needs to be adapted to different lifting ropes on the support column 13, the second nut 23 is rotated. The second nut 23 rotates in the threaded connection between the limiting hole 24 and the inner wall of the connecting plate 22, causing the connecting plate 22 to slide along the groove on the front inner wall of the limiting plate 26. Then, through the first rotating shaft 25, the limiting plate 26 is rotated around the second rotating shaft 28, changing the position and angle of the limiting plate 26 to fit the installation requirements of different lifting ropes. Through the threaded transmission structure of the second nut 23, the limiting hole 24, and the connecting plate 22, combined with the rotation and sliding structure of the first rotating shaft 25 and the second rotating shaft 28, the limiting plate 26 can be flexibly adjusted in position and angle to adapt to different lifting ropes, effectively preventing the lifting ropes from falling off during the lifting process and improving the safety and stability of the lifting operation.

[0027] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A detachable multi-functional lifting lug, comprising a connecting mechanism (1), characterized in that: The front side of the connecting mechanism (1) is fixedly connected to the limiting mechanism (2); The connecting mechanism (1) includes a base plate (11), a cross vertical plate (12) is fixedly connected to the front side of the base plate (11), a support column (13) is fixedly connected to the outside of the cross vertical plate (12), a top plate (14) is fixedly connected to the front side of the support column (13), and a plurality of nuts (15) are threadedly connected to the inner wall of the base plate (11).

2. The detachable multi-functional lifting lug according to claim 1, characterized in that: The limiting mechanism (2) includes a fixing block (21), the rear side of which is fixedly connected to the front side of the top plate (14), a connecting plate (22) is fixedly connected to the inner wall of the fixing block (21), a nut (23) is threadedly connected to the inner wall of the front side of the fixing block (21), a plurality of limiting holes (24) are opened on the front side of the fixing block (21), a rotating shaft (25) is rotatably connected to the top of the connecting plate (22), a limiting plate (26) is fixedly connected to the outside of the rotating shaft (25), a rotating shaft (28) is fixedly connected to the rear side of the limiting plate (26), and a fixing chamber (27) is rotatably connected to both ends of the rotating shaft (28).

3. A detachable multi-functional lifting lug according to claim 2, characterized in that: The bottom end of the fixed chamber (27) is fixedly connected to the top end of the base plate (11), and the bottom end of the fixed chamber (27) is fixedly connected to the top end of the cross vertical plate (12).

4. A detachable multi-functional lifting lug according to claim 2, characterized in that: The front side of the fixed chamber (27) is provided with a slot, and the rear side of the limiting plate (26) is slidably connected to the front inner wall of the fixed chamber (27).

5. A detachable multi-functional lifting lug according to claim 2, characterized in that: The front inner wall of the limiting plate (26) is provided with a slot, and the top of the connecting plate (22) is slidably connected to the front inner wall of the limiting plate (26).

6. A detachable multi-functional lifting lug according to claim 2, characterized in that: The external thread of the second nut (23) is connected to the inner wall of the connecting plate (22), and the external thread of the second nut (23) is connected to the inner wall of the limiting hole (24).

7. A detachable multi-functional lifting lug according to claim 1, characterized in that: The cross-shaped vertical plate (12) has multiple lifting holes (16) on its exterior, and the base plate (11) has multiple mounting holes (17) on its interior.

8. A detachable multi-functional lifting lug according to claim 7, characterized in that: The rear side of the support column (13) is fixedly connected to the front side of the base plate (11), and the external threads of the plurality of nuts (15) are connected to the inner walls of the plurality of mounting holes (17).

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