A lifting chain with anti-detachment structure
By designing an anti-slip structure on the lifting chain, and utilizing the double fixation of the anti-slip plate, the threaded sleeve of the hook, and the limit nut, combined with the double hook design, the risk of suspended items falling off during swaying and vibration is solved, achieving higher safety and adaptability.
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
- 2026-07-03
AI Technical Summary
Existing lifting chains pose a risk of falling off when suspending items due to swaying, vibration, or irregular force, and there is a lack of effective protective measures.
An anti-detachment structure was designed, including a suspension component, a connector, and an anti-detachment component. The suspension component consists of an installation rod and a hook. The anti-detachment component is double-fixed by the anti-detachment plate, the threaded sleeve of the hook, and the limiting nut, forming a closed limiting space. Combined with the double hook design, the force is distributed and balanced.
It effectively prevents items from falling off during lifting, improves safety and stability, adapts to different load-bearing requirements and working conditions, and enhances the adaptability and reliability of the lifting chain.
Smart Images

Figure CN224449991U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting chain technology, and in particular to a lifting chain with an anti-detachment structure. Background Technology
[0002] In modern industry, construction, and logistics, lifting chains are widely used as key material handling equipment in various hoisting operations.
[0003] Announcement No. CN216303047U discloses a lifting chain with an anti-detachment structure. This device places the lifting chain between two fixed plates and connects them with a connecting shaft. A connecting block is placed at the snap-fit plate, and a positioning plate is inserted into the connecting groove, so that the connecting shaft and the fixed shaft are connected as a whole. By rotating the pressing rod, the connecting shell is pressed against the snap-fit plate, limiting and fixing the connecting block. When the heavy object sways, the connecting shaft and the fixed shaft rotate, which can prevent the connecting shaft from falling off and ensure the safety of the lifting chain when lifting heavy objects.
[0004] As shown in the above technical solution, although the device can limit and fix the connecting block, prevent the connecting shaft from falling off, and ensure the safety of the lifting chain when lifting heavy objects, the suspended objects themselves are at risk of falling off due to shaking, vibration or irregular force during the lifting process, and there is a lack of targeted protective measures. Utility Model Content
[0005] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:
[0006] A lifting chain with an anti-derailment structure includes:
[0007] The lifting chain, the suspension component, and the connector are provided, wherein the suspension component is installed at one end of the lifting chain, and the connector is installed between the lifting chain and the suspension component.
[0008] An anti-detachment component installed on the suspension member, the anti-detachment component being used to prevent items suspended on the suspension member from falling off.
[0009] As an improvement to the above technical solution, the suspension component consists of a mounting rod and a hook, with the upper end of the mounting rod connected to the connector and the bottom of the mounting rod fixedly connected to the hook.
[0010] As an improvement to the above technical solution, two hooks are provided on the mounting rod, and the two mounting rods are arranged symmetrically.
[0011] As an improvement to the above technical solution, the connector includes a connecting block and a connecting plate. The connecting block is installed at the end of the lifting chain, and the suspension component is installed at the bottom of the connector. Both the connecting block and the connecting plate are provided with multiple matching threaded holes, and connecting bolts are movably installed at the threaded holes by means of threads.
[0012] As an improvement to the above technical solution, the connecting block is rotatably mounted on the end of the lifting chain.
[0013] As an improvement to the above technical solution, the connecting plate is provided in multiple models, and different connecting plates are equipped with different numbers and models of suspension parts and connecting blocks.
[0014] As an improvement to the above technical solution, the anti-detachment component includes an anti-detachment plate, which is sleeved on the mounting rod. Both ends of the anti-detachment plate are rotatably mounted with threaded sleeves and rotating rods. The rotating rods are fixedly mounted on the top of the threaded sleeves. The upper ends of the two hooks are provided with first threaded grooves, and the threaded sleeves are movably mounted on the hooks through the first threaded grooves.
[0015] As an improvement to the above technical solution, the anti-detachment component further includes a second threaded groove and a limiting nut. The second threaded groove is formed at the upper half of the mounting rod, and the limiting nut is threaded onto the mounting rod through the second threaded groove. The limiting nut is located above the anti-detachment plate.
[0016] The beneficial effects of this utility model are:
[0017] 1. This lifting chain with an anti-detachment structure, through the setting of an anti-detachment component, the anti-detachment plate in the anti-detachment component is tightly screwed into the hook through the threaded sleeve, and with the double fixation of the limit nut, can quickly form a stable closed limit space after the item is suspended. Even in the event of sudden violent vibration, it can firmly prevent the item from falling off the hook; the symmetrical double hook structure not only disperses the impact force when lifting heavy objects, but also can balance the force in time through the synergistic effect of the anti-detachment component when the force on one side is abnormal, thus preventing the item from slipping and falling off.
[0018] 2. This lifting chain with an anti-detachment structure allows for easy replacement of the suspension components through the installation of connecting parts. It can be flexibly adjusted according to different load-bearing requirements and operating scenarios, thus improving the adaptability of the lifting chain to different working environments. Attached Figure Description
[0019] Figure 1 This is an overall structural diagram of the present invention;
[0020] Figure 2 This is a partial structural diagram of the present invention;
[0021] Figure 3 This is an exploded view of the connector in this utility model;
[0022] Figure 4 This is a structural diagram of the suspension component and anti-detachment assembly in this utility model;
[0023] Figure 5 This is a structural diagram of the suspension component and anti-detachment assembly in another state of the present invention.
[0024] In the diagram: 11. Lifting chain; 12. Suspension component; 121. Mounting rod; 122. Hook; 13. Connector; 131. Connecting block; 132. Connecting plate; 133. Threaded hole; 134. Connecting bolt; 2. Anti-detachment component; 21. Anti-detachment plate; 22. Threaded sleeve; 23. First threaded groove; 24. Rotating rod; 25. Second threaded groove; 26. Limit nut. Detailed Implementation
[0025] 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.
[0026] like Figures 1-5 As shown:
[0027] A lifting chain with an anti-derailment structure includes:
[0028] The lifting chain 11, the suspension component 12, and the connector 13 are provided. The suspension component 12 is installed at one end of the lifting chain 11, and the connector 13 is installed between the lifting chain 11 and the suspension component 12.
[0029] An anti-detachment component 2 is installed on the suspension component 12 to prevent items suspended on the suspension component 12 from falling off.
[0030] In this embodiment, by setting an anti-detachment component 2 on the suspension member 12, the anti-detachment component 2 and the suspension member 12 cooperate to form a closed limiting space. When an item is suspended on the suspension member 12, the anti-detachment component 2 can block the item and prevent the item from slipping off the suspension member 12 due to shaking, vibration or other unexpected situations during the lifting process. This effectively enhances the safety performance of the lifting chain 11. Through the active protection of the anti-detachment component 2, the risk of suspended items falling off is greatly reduced, ensuring the stability and reliability of the lifting operation. In particular, it can provide strong protection for the safety of the operation under complex working conditions.
[0031] The suspension component 12 consists of a mounting rod 121 and a hook 122. The upper end of the mounting rod 121 is connected to the connector 13, and the bottom of the mounting rod 121 is fixedly connected to the hook 122. Two hooks 122 are provided on the mounting rod 121, and the two mounting rods 121 are arranged symmetrically.
[0032] In this embodiment, the anti-detachment component 2 cooperates with two symmetrical hooks 122 to form two closed spaces. When the item is suspended, the anti-detachment component 2 limits the item on each hook 122. With the symmetrical force design of the double hooks 122, the item is subjected to more even force during the lifting process, which further improves the safety performance and operational reliability of the lifting chain 11, while avoiding the risk of falling off due to the unbalanced force of a single hook 122.
[0033] The connector 13 includes a connecting block 131 and a connecting plate 132. The connecting block 131 is rotatably mounted on the end of the lifting chain 11. The suspension member 12 is mounted on the bottom of the connector 13. Both the connecting block 131 and the connecting plate 132 are provided with multiple matching threaded holes 133. Connecting bolts 134 are movably installed at the threaded holes 133 by means of threads.
[0034] In this embodiment, the connecting block 131 and the connecting plate 132 are fastened together by multiple matching threaded holes 133 and the threaded engagement of the connecting bolts 134, forming a stable force transmission structure. The threaded connection makes it easy to install and disassemble the connecting parts 13, and the multiple threaded holes 133 work together to enhance the connection strength and stability, ensuring the effective transmission of force. Combined with the anti-slip component 2 and the double hooks 122 design, it not only reduces the risk of items slipping and improves the suspension stability, but also enhances the overall structural load-bearing capacity and adaptability, ensuring safe and reliable operation under complex working conditions.
[0035] The connecting plate 132 has multiple models, and different connecting plates 132 are equipped with different numbers and models of suspension parts 12 and connecting blocks 131.
[0036] In this embodiment, the connecting plate 132 in the connector 13 is provided with multiple models. Different models correspond to the installation of different numbers and models of suspension parts 12 and connecting blocks 131. With the threaded connection of multiple matching threaded holes 133 and connecting bolts 134 on the connecting block 131 and the connecting plate 132, it can be flexibly adjusted according to different load-bearing requirements and working scenarios, thereby improving the adaptability of the lifting chain 11 to different working environments.
[0037] The anti-detachment component 2 includes an anti-detachment plate 21, which is sleeved on the mounting rod 121. Both ends of the anti-detachment plate 21 are rotatably mounted with threaded sleeves 22 and rotating rods 24. The rotating rods 24 are fixedly mounted on the top of the threaded sleeves 22. The upper ends of the two hooks 122 are provided with first threaded grooves 23. The threaded sleeves 22 are movably mounted on the hooks 122 through the first threaded grooves 23.
[0038] In this embodiment, by adjusting the height of the anti-detachment plate 21, and then by rotating the rotating rod 24, the threaded sleeve 22 can be screwed into or out of the first threaded groove 23, so that the anti-detachment plate 21 and the hook 122 form an adjustable closed limiting structure; the anti-detachment component 2 realizes the convenient opening and closing and fastening of the anti-detachment plate 21 through the threaded engagement, which enhances the stability of the suspended items, effectively prevents the items from falling off accidentally, and ensures the safety and stability of operation under complex working conditions.
[0039] The anti-detachment component 2 also includes a second threaded groove 25 and a limiting nut 26. The second threaded groove 25 is opened at the upper half of the mounting rod 121, and the limiting nut 26 is threaded onto the mounting rod 121 through the second threaded groove 25. The limiting nut 26 is located above the anti-detachment plate 21.
[0040] In this embodiment, after the threaded sleeve 22 on the anti-detachment plate 21 is installed, the limiting nut 26 is rotated. Since the limiting nut 26 matches the second threaded groove 25 opened on the mounting rod 121, the upward displacement of the anti-detachment plate 21 can be restricted. This prevents the threaded sleeve 22 from shifting due to vibration or other accidents during operation, thereby reducing the anti-detachment effect, improving its anti-detachment reliability, and ensuring its operational safety under complex working conditions.
[0041] Working principle: In use, first select the corresponding model of connecting plate 132 according to the lifting requirements. Install the matching quantity and model of connecting blocks 131 and suspension parts 12 on the connecting plate 132 through threaded holes 133 and connecting bolts 134. Then, hang the item to be lifted on the two symmetrical hooks 122. Slide the anti-detachment plate 21 to a suitable height. Rotate the rotating rod 24 to drive the threaded sleeve 22 into the first threaded groove 23 of the hook 122, so that the anti-detachment plate 21 and the hook 122 form a closed limiting structure. Then rotate the limiting nut 26 on the mounting rod 121 to the top of the anti-detachment plate 21 to fix the anti-detachment plate 21. During the lifting process, the anti-detachment component 2 and the double hooks 122 cooperate to prevent detachment. After the operation is completed, reverse the operation of the rotating rod 24 and the limiting nut 26 to remove the item. If it is necessary to change the working scene, the connecting plate 132 and related parts can be replaced by disassembling the connecting bolts 134.
[0042] 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 hoisting chain having a detaching prevention structure, characterized by comprising: include: The lifting chain (11), the suspension member (12) and the connector (13) are provided, wherein the suspension member (12) is installed at one end of the lifting chain (11) and the connector (13) is installed between the lifting chain (11) and the suspension member (12); An anti-detachment component (2) is installed on the suspension member (12) to prevent items suspended on the suspension member (12) from falling off; The suspension component (12) consists of a mounting rod (121) and a hook (122). The upper end of the mounting rod (121) is connected to the connector (13), and the bottom of the mounting rod (121) is fixedly connected to the hook (122). The anti-detachment component (2) includes an anti-detachment plate (21), which is sleeved on the mounting rod (121). Both ends of the anti-detachment plate (21) are rotatably mounted with threaded sleeves (22) and rotating rods (24). The rotating rods (24) are fixedly mounted on the top of the threaded sleeves (22). The upper ends of the two hooks (122) are provided with first threaded grooves (23). The threaded sleeves (22) are movably mounted on the hooks (122) through the first threaded grooves (23).
2. The load chain with anti-drop structure according to claim 1, characterized in that: Two hooks (122) are provided on the mounting rods (121), and the two mounting rods (121) are arranged symmetrically.
3. The load chain with anti-drop structure according to claim 1, characterized in that: The connector (13) includes a connecting block (131) and a connecting plate (132). The connecting block (131) is installed at the end of the lifting chain (11), and the suspension member (12) is installed at the bottom of the connector (13). Both the connecting block (131) and the connecting plate (132) have multiple matching threaded holes (133). A connecting bolt (134) is movably installed at the threaded hole (133) by means of threads.
4. The load chain with anti-drop structure according to claim 3, characterized in that: The connecting block (131) is rotatably mounted on the end of the lifting chain (11).
5. The load chain with anti-drop structure according to claim 3, characterized in that: The connecting plate (132) is provided in multiple models, and different connecting plates (132) are equipped with different numbers and models of suspension parts (12) and connecting blocks (131).
6. The load chain with anti-drop structure according to claim 1, characterized in that: The anti-detachment component (2) further includes a second threaded groove (25) and a limiting nut (26). The second threaded groove (25) is opened at the upper half of the mounting rod (121). The limiting nut (26) is threaded onto the mounting rod (121) through the second threaded groove (25). The limiting nut (26) is located above the anti-detachment plate (21).