Quick release chain rigging

Abstract

The utility model relates to chain rigging technical field, and disclose a kind of quick disassembly chain rigging, including 8 chains and the hook of installation in each chain bottom end position place, the top of 8 chains is locked in the inside of locking box being set above, locking box inner bottom center is equipped with a whirling disc, whirling disc outer ring is uniformly provided with 8 through interface column, locking box inner center is also installed with the selected rotation driving element of driving whirling disc rotation 5 ° so that each through interface column is connected in each chain top inside, locking box bottom is provided with 8 each chain top is inserted into the insertion hole of each chain top insertion.

Description

Technical Field

[0001] This utility model relates to the field of chain rigging technology, specifically a quick-disassembly chain rigging. Background Technology

[0002] With the continuous advancement of industrialization, lifting operations play a crucial role in fields such as machinery manufacturing, construction, and port loading and unloading. Chain slings, as a commonly used lifting tool, have advantages such as simple structure, high load-bearing capacity, and flexible use, and are widely used in lifting operations involving various heavy loads. Traditional chain slings mostly use single chains or combinations of multiple chains, secured by mechanical connections or locks, which can meet certain lifting requirements.

[0003] However, with the increasing complexity and diversity of lifting tasks, traditional chain slings have revealed some shortcomings in practical applications. First, the locking and unlocking process of multiple chains is often cumbersome, requiring individual operation, consuming significant time and manpower, and reducing lifting efficiency. Second, traditional slings rely heavily on manual locking and unlocking, which can easily lead to inconsistencies or errors, affecting the safety and stability of the lifting operation. Third, when frequent load changes or chain adjustments are required, the slow disassembly speed of traditional slings cannot meet the requirements of rapid response. This is particularly disadvantageous in emergency rescues or high-efficiency production lines, limiting the overall efficiency of lifting operations. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a quick-disassembly chain rigging to solve the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-release chain rigging, comprising 8 chains and hooks installed at the bottom of each chain. The top ends of the 8 chains are locked inside a locking box located above. A rotating disc is located at the center of the bottom of the locking box, and 8 connecting pins are evenly arranged around the outer ring of the disc. A rotating drive is also installed at the center of the locking box to rotate the disc by 5° so that each connecting pin is connected to the top end of each chain. The bottom of the locking box has 8 insertion holes through which the top end of each chain passes.

[0006] As a preferred technical solution of this utility model, the connecting post is set as an L-shape, with one end of the right-angled side fixed to the outer ring of the rotating disk, and the other right-angled side inserted into the inside of the top of the chain.

[0007] As a preferred technical solution of this utility model, the bottom surface of the locking box is provided with 8 positioning seats that cooperate with the locking operation of each through post. When the outer end of each through post is at the top of the locking chain, it is inserted into the interior of the positioning seat.

[0008] As a preferred technical solution of this utility model, the rotary drive component includes a rotating shaft, a worm gear, a worm, a worm positioning plate, a servo motor, a drive gear, a transmission gear, and a driven gear. The rotating shaft is connected to the top center of the rotating disk, the worm gear is fixedly sleeved on the rotating shaft, the worm has two symmetrical meshing with the left and right sides of the worm gear, the worm positioning plate has two symmetrically installed front and rear on the top of the locking box as a positioning structure for the worm on both sides, the servo motor is installed on the top of the locking box, the drive gear is connected to the output end of the servo motor, the driven gear is respectively connected to the front end of the worm on both sides, and the transmission gear has two corresponding meshing between the drive gear and the driven gears on both sides.

[0009] As a preferred technical solution of this utility model, an installation ring is provided at the top center of the locking box.

[0010] As a preferred technical solution of this utility model, the top of the locking box can also be directly positioned on the upper hoisting structure by bolts.

[0011] Compared with the prior art, this utility model provides a quick-disassembly chain rigging, which has the following advantages: This quick-release chain sling utilizes an innovatively designed rotating disc and threaded pin locking mechanism to achieve simultaneous locking and releasing of eight chains. Its core advantage lies in the fact that a mere 5° rotation of the rotating disc forward and backward allows all eight L-shaped threaded pins to simultaneously insert or retract into the corresponding chain tips, thus enabling rapid locking or disassembly of multiple chains. Compared to the cumbersome traditional method of locking or disassembling chains one by one, this device significantly reduces locking and releasing time, greatly improving the efficiency and safety of lifting operations.

[0012] Specifically, the device achieves precise and synchronous rotation of the turntable through a worm gear transmission mechanism driven by a servo motor, ensuring the simultaneous operation of all eight chains and avoiding risks caused by human error and inconsistent operation. Furthermore, the locking box has a compact and robust structure, effectively fixing the position of the through-post in conjunction with the positioning seat, ensuring a stable and reliable locking process and greatly improving stability and safety during hoisting.

[0013] The quick-release function enables the chain to be quickly disassembled and relocked during hoisting, especially in scenarios where the load needs to be frequently changed or the chain length adjusted. This saves a lot of manpower and time costs and is suitable for various hoisting environments such as high-efficiency production lines, heavy equipment installation, and emergency rescue.

[0014] In summary, this quick-release chain sling, through its rational mechanical structure design and excellent transmission control, achieves synchronous locking and rapid release of multiple chains, significantly improving the efficiency and safety of lifting operations. This device not only simplifies the operation process of traditional chain slings and reduces labor intensity, but also ensures the stability and reliability of the lifting process through precise positioning and locking mechanisms. Its efficient and convenient disassembly function is particularly suitable for the needs of modern industry for rapid response and flexible adjustment of lifting equipment, and has broad application prospects and promotional value. In the future, it can be combined with intelligent control technology to further realize automated management and remote operation, promoting the development of lifting technology towards a more efficient, safe, and intelligent direction. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the locking box of this utility model; Figure 2 This is a schematic diagram of the locking box of this utility model in the locked state; Figure 3 This is a schematic diagram of the locking box of this utility model in the unlocked state; Figure 4 This is a schematic diagram of the structure of the rotary drive component of this utility model; Figure 5 This is a schematic diagram of the overall external structure of this utility model.

[0016] The components include: 1. Chain; 2. Hook; 3. Locking box; 4. Spindle; 5. Rotary drive component; 6. Through-joint post; 7. Positioning seat; 8. Through-hole; 31. Positioning ring; 51. Rotating shaft; 52. Worm gear; 53. Worm; 54. Worm positioning plate; 55. Servo motor; 56. Drive gear; 57. Transmission gear; 58. Driven gear. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0018] It should be noted that if the utility model embodiment involves directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0019] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

[0020] Please see Figure 1-5 A quick-release chain rigging includes eight chains 1 and hooks 2 installed at the bottom of each chain 1. The top ends of the eight chains 1 are locked inside a locking box 3 located above. A rotating disc 4 is located at the center of the bottom inside the locking box 3. Eight L-shaped connecting posts 6 are evenly arranged on the outer ring of the rotating disc 4. One end of the right-angled side of each connecting post 6 is fixed to the outer ring of the rotating disc 4, and the other end passes into the top end of the corresponding chain 1.

[0021] The inner bottom surface of the locking box 3, near the outer ring, has eight positioning seats 7, which are used to cooperate with the locking operation of each through post 6. In the locked state, one end of each through post 6 passes through the inside of the top of each chain 1 and is inserted into the corresponding positioning seat 7, thereby achieving a stable lock on the top of the chain 1.

[0022] The rotating disk 4 is driven to rotate by a rotary drive mechanism 5. The top center of the rotating disk 4 is connected to the rotating shaft 51 inside the rotary drive mechanism 5. A worm gear 52 is sleeved on the rotating shaft 51. The rotary drive mechanism 5 also includes two symmetrically arranged worms 53, which mesh with the two sides of the worm gear 52 respectively. The worms 53 are positioned and fixed by a worm positioning plate 54 installed on the top of the locking box 3. The servo motor 55 is installed on the top of the locking box 3, and its output end is connected to the drive gear 56. The drive gear 56 drives the driven gears 58 on both sides through the transmission gears 57 on both sides. The driven gears 58 mesh with the front end of the worm 53 respectively, realizing the rotation of the rotating shaft 51 and the rotating disk 4. By rotating the rotating disk 4 by 5°, the eight through-pins 6 sequentially pass through or exit the top of their respective chains 1, completing the locking or releasing of the eight chains 1, thereby enabling a quick disassembly operation.

[0023] The locking box 3 has a mounting ring 31 at the top center for connecting to the upper hoisting structure. The top of the locking box 3 can also be directly fixed to the upper hoisting structure by bolts to ensure the stability and reliability of the overall rigging.

[0024] In this embodiment, the bottom of the locking box 3 has eight insertion holes 8, corresponding to the insertion positions of the top ends of the eight chains 1, ensuring that the chains 1 can be smoothly inserted into the locking box and effectively connected to the connecting posts 6. Hooks 2 are installed at the bottom of each chain 1 for easy and quick attachment of loads.

[0025] The workflow for this quick-release chain rigging is as follows: First, the top ends of the eight chains 1 are inserted into the locking box 3 through the eight insertion holes 8 at the bottom of the locking box 3. When it is necessary to lock the chains 1, the servo motor 55 is activated, which drives the transmission gears 57 on both sides through the drive gear 56, and then drives the driven gear 58 to rotate. The driven gear 58 meshes with the front end of the worm gear 53, driving the worm gear 53 to rotate. The worm gear 53 then drives the rotating shaft 51 to rotate through the meshing worm wheel 52. The rotating shaft 51 drives the rotating disk 4 connected to it to rotate counterclockwise by 5°, so that the eight L-shaped through-pins 6 on the outer ring of the rotating disk 4 rotate synchronously. One end of each through-pin 6 passes through the interior of the corresponding top end of the chain 1 and is inserted into the positioning seat 7 set on the inner bottom surface of the locking box 3 near the outer ring, thereby completing the simultaneous locking of the eight chains 1.

[0026] When quick disassembly is required, the servo motor 55 rotates in the opposite direction, driving the turntable 4 to rotate 5° clockwise through the same transmission path, so that the eight through-posts 6 simultaneously exit the top of their respective chains 1 and the positioning seat 7, realizing the synchronous release of the eight chains 1 and completing the quick disassembly operation.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-release chain sling, comprising eight chains (1) and hooks (2) installed at the bottom end of each chain (1), characterized in that: The top ends of the eight chains (1) are locked inside the locking box (3) set above. A rotating disk (4) is provided at the bottom center of the locking box (3). Eight connecting posts (6) are evenly arranged on the outer ring of the rotating disk (4). A rotating drive (5) is also installed in the center of the locking box (3) to drive the rotating disk (4) to rotate by 5° so that each connecting post (6) is connected to the top end of each chain (1). Eight insertion holes (8) are opened at the bottom of the locking box (3) for each chain (1) to pass through.

2. The quick-release chain rigging according to claim 1, characterized in that: The threaded post (6) is L-shaped as a whole, with one end of the right angle fixed to the outer ring of the disc (4) and the other right angle inserted into the top of the chain (1).

3. The quick-release chain rigging according to claim 1, characterized in that: The inner bottom surface of the locking box (3) is provided with eight positioning seats (7) that cooperate with the locking operation of each of the through-pins (6). When the outer end of each through-pin (6) is at the top of the locking chain (1), it is inserted into the interior of the positioning seat (7).

4. A quick-release chain rigging according to claim 1, characterized in that: The rotary drive component (5) includes a rotating shaft (51), a worm gear (52), a worm (53), a worm positioning plate (54), a servo motor (55), a drive gear (56), a transmission gear (57), and a driven gear (58). The rotating shaft (51) is connected to the top center of the rotating disk (4). The worm gear (52) is fixedly sleeved on the rotating shaft (51). The worm (53) has two symmetrical meshing parts on the left and right sides of the worm gear (52). The worm positioning plate (54) Two symmetrically mounted front and rear on the top of the locking box (3) serve as positioning structures for the worm gears (53) on both sides. The servo motor (55) is mounted on the top of the locking box (3). The drive gear (56) is connected to the output end of the servo motor (55). The driven gears (58) are respectively connected to the front ends of the worm gears (53) on both sides. Two transmission gears (57) are correspondingly meshed between the drive gear (56) and the driven gears (58) on both sides.

5. A quick-release chain rigging according to claim 1, characterized in that: The locking box (3) has an installation ring (31) at the top center.

6. A quick-release chain rigging according to claim 5, characterized in that: The top of the locking box (3) can also be directly positioned on the upper hoisting structure by bolts.

Images