Multifunctional lifting appliance conversion device for crane

Abstract

The utility model discloses a multifunctional lifting appliance conversion device for a crane, which relates to the technical field of crane lifting equipment and comprises a main body, a plurality of chain grooves are formed in the periphery of the main body, chain lock components are arranged in the chain grooves, a plurality of T-shaped grooves are formed in the periphery of the main body, and the T-shaped grooves and the chain grooves are alternately arranged. A T-shaped groove is formed in the upper surface of the main body, a plurality of grooves are formed in the step surfaces of the two sides of the T-shaped groove, a lifting lug assembly is slidably connected to the interior of the T-shaped groove, a plurality of lifting hooks are arranged on the periphery of the upper surface of the main body, and U-shaped buckles are rotationally connected to the upper portions of the lifting hooks. The utility model provides a multifunctional lifting appliance conversion device for a crane, and aims to design a conversion device capable of adapting to most lifting appliance interfaces on the market by researching the lifting appliance interfaces on the market, so as to solve the problem that the lifting appliance interfaces need to be synchronously replaced when different lifting appliances are replaced.

Description

Technical Field

[0001] This utility model relates to the field of crane lifting equipment technology, specifically to a multi-functional lifting tool conversion device for cranes. Background Technology

[0002] In various engineering construction and cargo loading and unloading scenarios, cranes, with their powerful lifting capacity, undertake the critical task of lifting heavy objects. Crane spreaders, as components that directly contact the objects being lifted, act like the crane's "grip," playing an irreplaceable and vital role in the entire lifting operation process. By utilizing different types of spreaders, cranes can function in multiple fields such as construction, port loading and unloading, metallurgical manufacturing, and logistics warehousing, completing various complex lifting tasks and meeting diverse industrial production needs.

[0003] In the field of industrial lifting, lifting tools once played a vital role in heavy object handling operations due to their unique advantages. However, with the rapid development of the industry and the continuous changes in operational needs, traditional lifting tools have gradually exposed many drawbacks. Among them, incompatible interfaces and the inconvenience of replacing lifting tools have greatly restricted operational efficiency and the further development of the industry. Utility Model Content

[0004] This utility model provides a multi-functional lifting tool conversion device for cranes. One objective is to design a conversion device that can adapt to most lifting tool interfaces on the market, solving the problem of needing to simultaneously change the lifting tool interface when changing to different lifting tools. Another objective is to simplify the lifting tool installation process, making it more convenient for workers.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A multi-functional lifting device for cranes includes a main body, with several chain grooves formed around its perimeter. A chain lock assembly is installed inside each chain groove. Several T-slots are formed around the main body, alternating with the chain grooves. Several grooves are provided on the stepped surfaces on both sides of each T-slot. A lifting lug assembly is slidably connected inside each T-slot. Several hooks are arranged around the upper surface of the main body, with a U-shaped buckle rotatably connected above each hook. Several sliding grooves are formed on the upper surface of the main body, extending through to the T-slots.

[0007] Preferably, an adjustment disc is provided at the center of the upper surface of the main body, a positioning buckle is provided at the center of the adjustment disc, a lifting ring is fixedly connected above the positioning buckle, a toothed ring is provided at the center of the adjustment disc, a gear is provided below the positioning buckle, and the adjustment disc and the positioning buckle are meshed and connected.

[0008] Preferably, the bottom surface of the positioning buckle is provided with a rectangular groove, and a rectangular block is fixedly connected to the center of the upper surface of the main body. The positioning buckle and the main body are slidably connected through the rectangular groove and the rectangular block, and a tension spring is provided between the positioning buckle and the main body.

[0009] Preferably, the upper and lower surfaces of the main body are provided with a plurality of power sockets, and a protective cover is fixedly connected to one side of the interface of the power socket.

[0010] Preferably, the chain lock assembly includes a chain body, one end of which is fixedly connected to a sliding pin, and both sides of the chain groove are provided with slide rails. The two ends of the sliding pin are slidably connected to the slide rails. The other end of the chain body is movably connected to a pin lock. One end of the pin lock is provided with an anti-detachment pin. The chain body and the pin lock are fixed by the anti-detachment pin. The other end of the pin lock is provided with a fixing block, and the center of the fixing block is provided with a through hole.

[0011] Preferably, the lifting lug assembly includes a lifting lug, a locking pin is movably connected to the lower part of the lifting lug, one end of the locking pin is provided with an anti-detachment pin, the lifting lug and the anti-detachment pin are fixed together by the anti-detachment pin, a rotating shaft is fixedly connected to the upper part of the lifting lug, a load-bearing block is fixedly connected to the upper part of the rotating shaft, a plurality of positioning beads are provided around the bottom surface of the load-bearing block, the rotation angle of the lifting lug assembly is fixed by the engagement between the positioning beads and the groove, a top spring is provided above the load-bearing block, a washer is provided above the top spring, a stud is fixedly connected to the center position above the load-bearing block, a sliding nut is threaded to the top of the stud, and the sliding nut is located above the adjusting plate;

[0012] Preferably, the adjustment plate is provided with four support legs around its perimeter, and each of the four support legs has a through groove in its center. The space formed by the intersection of the through groove and the sliding groove positions the lifting lug assembly, and the stud extends through the space to the outside of the adjustment plate.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a multi-functional lifting tool conversion device for cranes. Through the chain lock assembly and adjustable lifting lug assembly set on the conversion device, it can be adapted to most lifting tool interfaces on the market. Through the movable pin lock, the worker can easily install the lifting tool on the conversion device.

[0015] 2. This utility model provides a multi-functional lifting tool conversion device for cranes. By setting multiple power interfaces on the conversion device, lifting tools that require external power can be connected to the conversion device, reducing the interruption of external power caused by equipment compression. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a multi-functional lifting device conversion device for a crane according to the present invention;

[0017] Figure 2 This is a schematic diagram of the bottom structure of a multi-functional lifting device conversion device for a crane according to the present invention;

[0018] Figure 3 This is a schematic diagram of the adjustment device structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the chain lock assembly structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the lifting lug assembly of this utility model.

[0021] In the diagram: 1. Main body; 2. Chain lock assembly; 201. Chain body; 202. Sliding pin; 203. Pin lock; 204. Anti-detachment pin; 205. Fixing block; 3. T-slot; 4. Hook; 5. U-shaped buckle; 6. Sliding nut; 7. Lifting lug assembly; 701. Lifting lug; 702. Stud; 703. Shaft; 704. Load-bearing block; 705. Positioning bead; 706. Top spring; 707. Washer; 8. Adjusting plate; 9. Positioning buckle; 10. Protective cover; 11. Slide groove; 12. Power socket; 13. Tension spring. Detailed Implementation

[0022] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0023] like Figure 1-3As shown, a multi-functional lifting device for cranes includes a main body 1. The main body 1 has several chain grooves around its perimeter, with chain lock assemblies 2 installed inside each chain groove. Several T-shaped grooves 3 are also provided around the main body 1, alternating with the chain grooves. Several recesses are provided on the stepped surfaces on both sides of each T-shaped groove 3. Lifting lug assemblies 7 are slidably connected inside each T-shaped groove 3. Several hooks 4 are arranged around the upper surface of the main body 1, with U-shaped buckles 5 rotatably connected above each hook 4. The hooks are connected via U-shaped buckles. The buckle 5 allows the device to be connected to a crane. The upper surface of the main body 1 has several sliding grooves 11, which extend to the T-slot 3. An adjusting disc 8 is rotatably mounted at the center of the upper surface of the main body 1. The lifting lug assembly 7 is movably connected to the adjusting disc 8 via a sliding nut 6. A positioning buckle 9 is located at the center of the adjusting disc 8, and a lifting ring is fixedly connected above the positioning buckle 9. If necessary, the positioning buckle 9 can be lifted by passing a pry bar through the lifting ring. A toothed ring is located at the center of the adjusting disc 8, and the lower part of the positioning buckle 9... The main body 1 is equipped with gears, and the adjusting disc 8 is meshed with the positioning buckle 9. The bottom surface of the positioning buckle 9 has a rectangular groove. A rectangular block is fixedly connected to the center of the upper surface of the main body 1. The positioning buckle 9 and the main body 1 are slidably connected through the rectangular groove and the rectangular block. A tension spring 13 is provided between the positioning buckle 9 and the main body 1, providing tension between them to ensure a tight fit. The upper and lower surfaces of the main body 1 are provided with several power sockets 12, which can be used for various hanging devices. The device provides an external power supply to ensure the normal operation of the lifting device. A protective cover 10 is fixedly connected to one side of the power socket 12 interface. The protective cover 10 can prevent rainwater, dust and debris from entering the power socket 12 and causing damage. The adjustment plate 8 is provided with four legs around its perimeter, and each of the four legs has a through groove in its center. The space formed by the intersection of the through groove and the sliding groove 11 positions the lifting lug assembly 7. The lifting lug assembly 7 can be adjusted to different positions by rotating the adjustment plate at different angles to adapt to the interfaces of different lifting devices.

[0024] like Figure 4As shown, the chain lock assembly 2 includes a chain body 201. One end of the chain body 201 is fixedly connected to a sliding pin 202. Slides are provided on both sides of the chain groove. The two ends of the sliding pin 202 are slidably connected to the slides. The chain lock assembly can be stored in the chain groove through the slides. The other end of the chain body 201 is movably connected to a pin lock 203. The pin lock 203 can quickly combine the lifting device interface with the chain lock assembly 2. One end of the pin lock 203 is provided with an anti-detachment pin 204. The chain body 201 and the pin lock 203 are fixed by the anti-detachment pin 204. The other end of the pin lock 203 is provided with a fixing block 205. The center of the fixing block 205 is provided with a through hole. When the chain lock assembly 2 is stored in the chain groove, the chain lock assembly 2 can be fixed to the main body 1 with screws through the through hole.

[0025] like Figure 5 As shown, the lifting lug assembly 7 includes a lifting lug 701. A locking pin 203 is movably connected to the lower part of the lifting lug 701, allowing the lifting tool interface to be quickly combined with the lifting lug 701 via the locking pin 203. One end of the locking pin 203 is provided with an anti-detachment pin 204, which secures the lifting lug 701 to the anti-detachment pin 204. A rotating shaft 703 is fixedly connected to the upper part of the lifting lug 701, allowing the lifting lug assembly 7 to rotate within the T-slot 3. A load-bearing block 704 is fixedly connected to the upper part of the rotating shaft 703, and several positioning beads 705 are arranged around the bottom surface of the load-bearing block 704. The rotation angle of the lifting lug assembly 7 is fixed by the engagement between the positioning bead 705 and the groove. A top spring 706 is provided above the load-bearing block 704. The top spring 706 can make the positioning bead and the groove engage more tightly. A washer 707 is provided above the top spring 706. The washer 707 can reduce the friction between the top spring 706 and the T-slot 3 and prevent the top spring 706 from being damaged. A stud 702 is fixedly connected to the center position above the load-bearing block 704. A sliding nut 6 is threaded to the top of the stud 702. The stud 702 extends through the through groove to the outside of the adjusting plate 8, and the sliding nut 6 is located above the adjusting plate 8.

[0026] The working principle of the multi-functional lifting device used in this crane will be explained in detail below.

[0027] like Figure 1-5As shown, the worker connects the device to the crane using the U-shaped buckle 5, and then selects to use either the chain lock assembly 2 or the lifting lug assembly 7 according to the interface shape of the lifting device. If the chain lock assembly 2 is used, the worker loosens the screws and removes the chain lock assembly 2 from the chain groove in sequence, then removes the anti-detachment pin 204 from the pin lock 203, then removes the pin lock 203 from the chain body 201, then lowers the lifting device interface to the chain body 201 with the pin lock 203, and finally inserts the anti-detachment pin 204 back in. The above operation is repeated for each chain lock assembly 2. If a lifting lug assembly is selected, adjust the lugs according to the interface type of the selected lifting device. First, adjust the rotation direction of the lugs. The worker holds the lower part of the lifting lug assembly 7 and pushes it upwards while rotating the lug assembly 7. Release the worker after adjusting it to the appropriate position. Repeat the above steps to adjust each lifting lug assembly 7 in turn. Then, adjust the position of the lifting lug assembly 7. First, lift the positioning buckle 9, then rotate the adjusting plate 8 to move the lifting lug assembly 7 to the appropriate position and release the positioning buckle 9. Finally, remove the pin lock 203 below the lifting lug 701 and fix the lifting device interface to the lifting lug 701 with the pin lock 203. If the lifting device used needs to be connected to an external power source, open the protective covers 10 on the top and bottom of the main body 1, connect the power interface of the lifting device to the power interface below the main body 1, and connect the power interface on the top of the device to the external power source. The entire lifting device and lifting device conversion device installation is now complete.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A multi-functional lifting device for cranes, comprising a main body (1), characterized in that: The main body (1) has several chain grooves around its perimeter, and a chain lock assembly (2) is provided inside the chain groove. The main body (1) has several T-shaped grooves (3) around its perimeter, and the T-shaped grooves (3) and chain grooves are placed alternately. Several grooves are provided on the stepped surfaces on both sides of the T-shaped grooves (3). A lifting lug assembly (7) is slidably connected inside the T-shaped grooves (3). Several hooks (4) are provided around the upper surface of the main body (1). A U-shaped buckle (5) is rotatably connected above the hooks (4). Several sliding grooves (11) are provided on the upper surface of the main body (1), and the sliding grooves (11) extend through the T-shaped grooves (3).

2. The multi-functional lifting device for a crane according to claim 1, characterized in that: An adjustment disc (8) is provided at the center of the upper surface of the main body (1). A positioning buckle (9) is provided at the center of the adjustment disc (8). A hanging ring is fixedly connected above the positioning buckle (9). A toothed ring is provided at the center of the adjustment disc (8). A gear is provided below the positioning buckle (9). The adjustment disc (8) and the positioning buckle (9) are meshed together.

3. A multi-functional lifting device for a crane according to claim 2, characterized in that: The bottom surface of the positioning buckle (9) is provided with a rectangular groove, and a rectangular block is fixedly connected to the center of the upper surface of the main body (1). The positioning buckle (9) and the main body (1) are slidably connected through the rectangular groove and the rectangular block, and a tension spring (13) is provided between the positioning buckle (9) and the main body (1).

4. A multi-functional lifting device for a crane according to claim 1, characterized in that: The upper and lower surfaces of the main body (1) are provided with a plurality of power sockets (12), and a protective cover (10) is fixedly connected to one side of the interface of the power socket (12).

5. A multi-functional lifting device for a crane according to claim 1, characterized in that: The chain lock assembly (2) includes a chain body (201), one end of which is fixedly connected to a sliding pin (202). Slides are provided on both sides of the chain groove. The two ends of the sliding pin (202) are slidably connected to the slides. The other end of the chain body (201) is movably connected to a lock pin (203). One end of the lock pin (203) is provided with an anti-detachment pin (204). The chain body (201) and the lock pin (203) are fixed together by the anti-detachment pin (204). The other end of the lock pin (203) is provided with a fixing block (205). The center of the fixing block (205) is provided with a through hole.

6. A multi-functional lifting device for a crane according to claim 1, characterized in that: The lifting lug assembly (7) includes a lifting lug (701), a locking pin (203) is movably connected to the lower part of the lifting lug (701), and an anti-detachment pin (204) is provided at one end of the locking pin (203). The lifting lug (701) and the anti-detachment pin (204) are fixed together by the anti-detachment pin (204). A rotating shaft (703) is fixedly connected to the upper part of the lifting lug (701), and a load-bearing block (704) is fixedly connected to the upper part of the rotating shaft (703). The bottom surface of the load-bearing block (704) is circumferentially covered with a load-bearing block (704). A plurality of positioning beads (705) are provided. The rotation angle of the lifting lug assembly (7) is fixed by the engagement between the positioning beads (705) and the groove. A top spring (706) is provided above the load-bearing block (704). A washer (707) is provided above the top spring (706). A stud (702) is fixedly connected to the center position above the load-bearing block (704). A sliding nut (6) is threadedly connected to the top of the stud (702). The sliding nut (6) is located above the adjusting plate (8).

7. A multi-functional lifting device for a crane according to claim 2, characterized in that: The adjustment plate (8) is provided with four legs around its perimeter, and each of the four legs has a through groove in its center. The space formed by the intersection of the through groove and the slide groove (11) positions the lifting lug assembly (7), and the stud (702) extends through this space to the outside of the adjustment plate (8).

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