Detachable high-efficiency hoisting chain

By designing a detachable chain body and connectors, the problem of fixed structure in traditional lifting chains is solved, enabling convenient disassembly and assembly of the chain, improving installation efficiency and usage flexibility, reducing maintenance costs, and ensuring operational safety.

CN224414251UActive Publication Date: 2026-06-26JINSHIDA (HEBEI) HOISTING EQUIPMENT MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINSHIDA (HEBEI) HOISTING EQUIPMENT MANUFACTURING CO LTD
Filing Date
2025-09-02
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The fixed length of traditional lifting chains is due to their overall structure, making them difficult to adapt flexibly. They also occupy a large amount of storage space, have high maintenance costs and are complex to repair, thus affecting production progress.

Method used

The design incorporates a detachable first and second chain section, with a connectable structure that allows for opening and closing. Protective components and limiting blocks further enhance connection stability and extend service life.

Benefits of technology

It enables convenient disassembly and assembly of the chain, improves installation efficiency and usage flexibility, reduces maintenance costs, and ensures operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to hoisting chain technical field discloses a detachable high -efficient hoisting chain, include: first chain body department and second chain body department, one end of first chain body department with one end of second chain body department rotatory connection, when the other end of first chain body department with the other end of second chain body department between installation has the connecting piece, when the other end of first chain body department rotates to with the other end of second chain body department opposite position, the other end of first chain body department passes through connecting piece and is connected with the other end of second chain body department.
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Description

Technical Field

[0001] This utility model relates to the field of lifting chain technology, and in particular to a detachable high-efficiency lifting chain. Background Technology

[0002] In many fields such as industrial production, logistics and transportation, port loading and unloading, and construction, lifting chains are the core key components for lifting and transporting heavy objects. Their load-bearing capacity, structural stability, and operational safety are directly related to the level of production efficiency and the safety of personnel and equipment, thus holding an irreplaceable and important position.

[0003] Traditional lifting chains typically use a one-piece structure for overall connection. Their fixed length and rigid form make them difficult to adapt flexibly, severely limiting their applicability. To meet diverse operational needs, companies must pre-stock various chain lengths and specifications, which not only occupies significant storage space but also significantly increases equipment procurement and storage costs. Furthermore, when lifting chains experience localized wear, deformation, or breakage, the indivisible nature of their structure prevents individual replacement or repair. A cutting machine must be used to remove the damaged portion, followed by welding repairs using specialized equipment. This not only complicates and increases maintenance costs but also disrupts operations due to equipment repair or replacement, wasting considerable production time and severely impacting overall production progress. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] A detachable, high-efficiency lifting chain, comprising:

[0006] A first chain portion and a second chain portion, one end of the first chain portion and one end of the second chain portion are rotatably connected. When a connector is installed between the other end of the first chain portion and the other end of the second chain portion, when the other end of the first chain portion rotates to a position opposite to the other end of the second chain portion, the other end of the first chain portion is connected to the other end of the second chain portion through the connector.

[0007] As an improvement to the above technical solution, both the first chain section and the second chain section are composed of two straight pipes connected by an arc-shaped bend, and both the first chain section and the second chain section are U-shaped in shape.

[0008] As an improvement to the above technical solution, the connector includes a first threaded groove and a threaded sleeve. The first threaded groove is formed at the other end of the second chain body, and the threaded sleeve is movably installed at the other end of the first chain body. The threaded sleeve is threaded onto the second chain body through the first threaded groove.

[0009] As an improvement to the above technical solution, an annular groove is provided at the other end of the first chain body, and the threaded sleeve is movably installed in the annular groove.

[0010] As an improvement to the above technical solution, the same protective element is fitted on the other end of the first chain body, the other end of the second chain body, and the outer wall of the connector.

[0011] As an improvement to the above technical solution, the protective component includes a first protective sleeve and a second protective sleeve. One end of the first protective sleeve and one end of the second protective sleeve are rotatably connected by a hinge. Rubber sleeves are installed on the inner walls of both the first and second protective sleeves.

[0012] As an improvement to the above technical solution, the protective component further includes multiple mounting blocks, all of which are fixedly mounted on the other end of the first protective sleeve. The other end of the second protective sleeve is provided with a mounting groove that matches the mounting blocks. The second protective sleeve and the multiple mounting blocks are provided with slots, and the same limiting rod is movably mounted at the multiple slots.

[0013] As an improvement to the above technical solution, the protective component further includes a second threaded groove, which is formed at the lower end of the limiting rod, and the limiting rod is threaded onto the second protective sleeve through the second threaded groove.

[0014] As an improvement to the above technical solution, the protective component further includes two limiting blocks, which are respectively fixedly installed on the inner walls of the first protective sleeve and the second protective sleeve. The two limiting blocks are both semi-circular arc-shaped. When the protective component is installed on the outer walls of the first chain body and the second chain body, the two limiting blocks are located in the gap within the annular groove.

[0015] The beneficial effects of this utility model are:

[0016] 1. This detachable high-efficiency lifting chain, by setting a first chain body, a second chain body and a connector, forms an openable structure, realizing convenient disassembly and assembly of the chain, and improving the installation efficiency and usage flexibility of the chain in lifting operations.

[0017] 2. This detachable high-efficiency lifting chain, by incorporating protective components, can enclose and protect the connection between the first and second chain sections and the connecting parts, thereby extending its service life. Simultaneously, the limiting block abuts against the threaded sleeve, preventing rotation of the threaded sleeve during chain operation and improving the safety of the device. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the present invention;

[0019] Figure 2 This is a partial structural diagram of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the present invention;

[0021] Figure 4 This is a structural diagram of the first chain body, the second chain body, and the connector in this utility model;

[0022] Figure 5 This is a structural diagram of the protective component in this utility model.

[0023] In the diagram: 11. First chain body; 12. Second chain body; 2. Connector; 21. First threaded groove; 22. Threaded sleeve; 23. Annular groove; 3. Protective component; 31. First protective sleeve; 32. Second protective sleeve; 33. Rubber sleeve; 34. Mounting block; 35. Mounting groove; 36. Slot; 37. Limiting rod; 38. Second threaded groove; 39. Limiting block. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0025] like Figures 1-5 As shown:

[0026] A detachable, high-efficiency lifting chain, comprising:

[0027] A first chain body 11 and a second chain body 12 are connected at one end of the first chain body 11 and at one end of the second chain body 12. A connector 2 is installed between the other end of the first chain body 11 and the other end of the second chain body 12. When the other end of the first chain body 11 rotates to a position opposite to the other end of the second chain body 12, the other end of the first chain body 11 is connected to the other end of the second chain body 12 through the connector 2.

[0028] In this embodiment, by setting a first chain body 11 and a second chain body 12, one end of the first chain body 11 and the second chain body 12 are rotatably connected, and the other end is detachably connected through the connector 2, forming an openable structure, realizing convenient disassembly and assembly of the chain, and improving the installation efficiency and usage flexibility of the chain in lifting operations.

[0029] The first chain section 11 and the second chain section 12 are both composed of two straight pipes connected by an arc-shaped bend pipe, and the first chain section 11 and the second chain section 12 are both U-shaped.

[0030] In this embodiment, the geometric characteristics of the U-shaped structure disperse the load-bearing pressure, the curved bend can buffer the impact force during lifting, and the two straight sections ensure the straight transmission of force.

[0031] The connector 2 includes a first threaded groove 21 and a threaded sleeve 22. The first threaded groove 21 is opened at the other end of the second chain body 12, and the threaded sleeve 22 is movably installed at the other end of the first chain body 11. The threaded sleeve 22 is threadedly installed on the second chain body 12 through the first threaded groove 21.

[0032] The other end of the first chain body 11 has an annular groove 23, and the threaded sleeve 22 is movably installed in the annular groove 23.

[0033] In this embodiment, by providing an annular groove 23, the threaded sleeve 22 can slide up and down and rotate freely within the annular groove 23, which facilitates the installation of the threaded sleeve 22 onto the second chain body 12 or its removal from the second chain body 12 via the first threaded groove 21.

[0034] The same protective element 3 is fitted on the other end of the first chain part 11, the other end of the second chain part 12, and the outer wall of the connector 2.

[0035] In this embodiment, by providing a protective member 3, the connection between the first chain body 11 and the second chain body 12 can be wrapped up to isolate it from the external environment. At the same time, the connecting member 2 can be protected to prevent wear on the threads on the first threaded groove 21 and the threaded sleeve 22.

[0036] The protective component 3 includes a first protective sleeve 31 and a second protective sleeve 32. One end of the first protective sleeve 31 and one end of the second protective sleeve 32 are rotatably connected by a hinge. A rubber sleeve 33 is installed on the inner wall of both the first protective sleeve 31 and the second protective sleeve 32.

[0037] In this embodiment, the first protective sleeve 31 and the second protective sleeve 32 are flexibly opened and closed by hinge rotation, which facilitates the quick installation or removal of the protective component 3. At the same time, the elastic properties of the rubber sleeve 33 enhance the fit with the outer wall of the first chain body 11, the second chain body 12 and the connector 2, which can more effectively isolate external impurities, prevent moisture from entering the first chain body 11, the second chain body 12 and the connector 2, prevent rusting at the connection between the first chain body 11 and the second chain body 12 and at the threads of the first threaded groove 21 and the threaded sleeve 22, extend the service life of the first chain body 11, the second chain body 12 and the connector 2, and ensure the safety and reliability of lifting operations.

[0038] The protective component 3 also includes multiple mounting blocks 34, which are all fixedly installed on the other end of the first protective sleeve 31. The other end of the second protective sleeve 32 is provided with a mounting groove 35 that matches the mounting blocks 34. The second protective sleeve 32 and the multiple mounting blocks 34 are provided with slots 36, and the same limiting rod 37 is movably installed at the multiple slots 36.

[0039] In this embodiment, when the protective member 3 is fitted onto the first chain body 11 and the second chain body 12, the multiple mounting blocks 34 rotate sequentially into the multiple mounting slots 35. By inserting the limiting rod 37, the limiting rod 37 passes through the second protective sleeve 32 and the slots 36 on the multiple mounting blocks 34, thereby connecting the first protective sleeve 31 and the second protective sleeve 32 together, which facilitates the installation and removal of the protective member 3.

[0040] The protective component 3 also includes a second threaded groove 38, which is formed at the lower end of the limiting rod 37. The limiting rod 37 is threaded onto the second protective sleeve 32 through the second threaded groove 38.

[0041] In this embodiment, when the limiting rod 37 is installed between the first protective sleeve 31 and the second protective sleeve 32 through the slot 36, the limiting rod 37 is rotated so that the lower end of the limiting rod 37 is threadedly connected to the second protective sleeve 32, thereby improving the stability of the connection between the first protective sleeve 31 and the second protective sleeve 32.

[0042] The protective component 3 also includes two limiting blocks 39, which are fixedly installed on the inner walls of the first protective sleeve 31 and the second protective sleeve 32 respectively. Both limiting blocks 39 are semi-circular arc-shaped. When the protective component 3 is installed on the outer walls of the first chain body 11 and the second chain body 12, both limiting blocks 39 are located in the gap within the annular groove 23.

[0043] In this embodiment, by setting two limiting blocks 39, when the protective member 3 is sleeved on the first chain body 11 and the second chain body 12, both limiting blocks 39 are located in the annular groove 23, and the two limiting blocks 39 abut against the first connecting part and the threaded sleeve 22, thereby preventing the threaded sleeve 22 from rotating accidentally during use and improving the stability of the lifting chain.

[0044] Working principle: In use, first rotate the first chain body 11 and the second chain body 12 until their ends are opposite. The connection is completed by screwing the threaded sleeve 22 in the annular groove 23 into the first threaded groove 21 of the second chain body 12. Then, the first protective sleeve 31 and the second protective sleeve 32 of the protective component 3 are fitted onto the connection part through the hinge, so that the mounting block 34 is embedded in the mounting groove 35. The limiting rod 37 is inserted and passes through the slot 36. Then, the limiting rod 37 is rotated and tightened and fixed to the second protective sleeve 32 through the second threaded groove 38. At this time, both limiting blocks 39 are located in the annular groove 23, thereby preventing the threaded sleeve 22 from rotating accidentally during use. When it is necessary to adjust the overall length of the chain, rotate the limiting rod 37 in the opposite direction, open the protective component 3, and then loosen the threaded sleeve 22 to separate one end of the first chain body 11 and the second chain body 12, so as to realize the quick disassembly and reassembly of the chain and its reuse.

[0045] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A detachable, high-efficiency lifting chain, characterized in that, include: The chain consists of a first chain section (11) and a second chain section (12). One end of the first chain section (11) is rotatably connected to one end of the second chain section (12). A connector (2) is installed between the other end of the first chain section (11) and the other end of the second chain section (12). When the other end of the first chain section (11) rotates to a position opposite to the other end of the second chain section (12), the other end of the first chain section (11) is connected to the other end of the second chain section (12) through the connector (2).

2. The detachable high-efficiency lifting chain according to claim 1, characterized in that: Both the first chain section (11) and the second chain section (12) are composed of two straight pipes connected by an arc-shaped bend. Both the first chain section (11) and the second chain section (12) are U-shaped in shape.

3. The detachable high-efficiency lifting chain according to claim 1, characterized in that: The connector (2) includes a first threaded groove (21) and a threaded sleeve (22). The first threaded groove (21) is opened at the other end of the second chain body (12). The threaded sleeve (22) is movably installed at the other end of the first chain body (11). The threaded sleeve (22) is threaded onto the second chain body (12) through the first threaded groove (21).

4. The detachable high-efficiency lifting chain according to claim 3, characterized in that: The other end of the first chain body (11) is provided with an annular groove (23), and the threaded sleeve (22) is movably installed in the annular groove (23).

5. A detachable high-efficiency lifting chain according to claim 4, characterized in that: The same protective element (3) is fitted on the other end of the first chain part (11), the other end of the second chain part (12), and the outer wall of the connector (2).

6. A detachable high-efficiency lifting chain according to claim 5, characterized in that: The protective component (3) includes a first protective sleeve (31) and a second protective sleeve (32). One end of the first protective sleeve (31) and one end of the second protective sleeve (32) are rotatably connected by a hinge. Rubber sleeves (33) are installed on the inner walls of both the first protective sleeve (31) and the second protective sleeve (32).

7. A detachable high-efficiency lifting chain according to claim 6, characterized in that: The protective component (3) also includes multiple mounting blocks (34), which are fixedly installed on the other side of the first protective sleeve (31). The other side of the second protective sleeve (32) is provided with a mounting groove (35) that matches the mounting block (34). The second protective sleeve (32) and the multiple mounting blocks (34) are provided with slots (36), and the same limiting rod (37) is movably installed at the multiple slots (36).

8. A detachable high-efficiency lifting chain according to claim 7, characterized in that: The protective component (3) also includes a second threaded groove (38), which is formed at the lower end of the limiting rod (37). The limiting rod (37) is threaded onto the second protective sleeve (32) through the second threaded groove (38).

9. A detachable high-efficiency lifting chain according to claim 8, characterized in that: The protective component (3) also includes two limiting blocks (39), which are fixedly installed on the inner walls of the first protective sleeve (31) and the second protective sleeve (32), respectively. The two limiting blocks (39) are both semi-circular arc-shaped. When the protective component (3) is installed on the outer walls of the first chain body (11) and the second chain body (12), the two limiting blocks (39) are located in the gap within the annular groove (23).