Chain type binding reinforcing device
By improving the open tensioning element, flat hook design, and lightweight binding chain of the chain-type binding device, the problems of inconvenient adjustment, easy damage, and laborious operation in the existing technology have been solved, achieving efficient and safe cargo securing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-04-03
AI Technical Summary
The existing chain-type binding and fastening device has a closed fastening structure, which has a small and inconvenient adjustment space. The ram's horn hook changes the direction of force on the chain and is easily damaged. It lacks an anti-loosening structure, is difficult to operate and the wrench is easy to lose. It is also relatively heavy.
It adopts an open tensioning structure, uses R-pins and lock nuts, replaces the ram's horn hook with a flat hook, and is equipped with a foldable wrench and lock nuts. The chain is replaced with a binding chain to reduce weight.
It improves adjustment and disassembly efficiency, extends chain life, reduces operator workload, and ensures safety and ease of operation.
Smart Images
Figure CN224075835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cargo reinforcement technology, and in particular to a chain-type binding and reinforcement device. Background Technology
[0002] Chain lashing is a common and effective method for securing goods, equipment, or other items during land and sea transport, ensuring their stability and preventing displacement or damage caused by wind loads, bumps, acceleration, or other factors. Chain lashing typically consists of chains, buckles, and adjusters, and features high strength, corrosion resistance, adjustability, and versatility. With proper installation and regular inspection, chain lashing plays a vital role in cargo transport, ensuring safety and equipment stability.
[0003] Currently, the following shortcomings have been gradually discovered in the use of existing chain-link reinforcement devices:
[0004] 1) The fastening structure in most chain-type binding reinforcements is closed. Once the closed fastening structure is installed, its adjustment space is small. If it is necessary to change the reinforcement strength or adjust its position, it will be limited by the design of the closed structure, which increases the inconvenience in construction.
[0005] 2) Currently, when the ram's horn hook used to adjust the chain length is used with the chain, the chain lies horizontally and is stuck in the groove of the ram's horn hook. This changes the direction of force on the chain, resulting in poor stress on the chain, which makes it easy to be damaged and thus greatly shortens its lifespan.
[0006] 3) When adjusting the length of the chain, a special wrench is required. Finding a special wrench is time-consuming, which can lead to low work efficiency. Also, since the wrench and the binding and securing device are separate, the wrench is easy to lose.
[0007] 4) The chain is not equipped with an anti-loosening structure, which makes it prone to loosening or failure during use, and may cause safety accidents.
[0008] 5) Currently, the chain binding and reinforcement devices commonly available on the market are quite heavy, making them inconvenient and laborious to operate. Utility Model Content
[0009] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.
[0010] Specifically, the technical problem to be solved by this utility model is to provide a chain-type binding and reinforcement device to solve the technical problems of the current closed fastening structure having a small adjustment space and inconvenience in construction once it is installed.
[0011] To solve the above-mentioned technical problems, the present invention provides the following technical solution:
[0012] A chain-type binding and securing device includes a chain, a tensioning element installed at one end of the chain, a screw installed at one end of the chain, a wrench installed on the screw, a lock nut threaded onto the outer surface of the screw, and U-shaped bodies threaded onto both ends of the screw. A pin is movably connected inside the U-shaped body, the pin being located at the end away from the screw. One end of the chain is located inside the U-shaped body and movably connected thereto. One end of the pin passes through the chain and extends out of the U-shaped body. An R-pin is inserted inside the pin, the R-pin being located outside the U-shaped body. A flat hook is installed on the chain.
[0013] As an improved technical solution, a connecting rod is movably sleeved inside the screw, a nut is provided on one side of the screw, both ends of the connecting rod pass through the screw, one end of which is threadedly connected to the nut, and the other end is movably connected to a wrench.
[0014] As an improved technical solution, the U-shaped body is provided with a rope, and the rope is provided in two sets, with the other end of the two sets of ropes connected to the pin shaft and the R-pin, respectively.
[0015] As an improved technical solution, one end of the chain is movably connected to a ram's horn hook, which is located at the end away from the tensioner.
[0016] As an improved technical solution, a butterfly buckle is installed at one end of the tensioning member, an elongated ring is installed at the other end of the butterfly buckle, and a shackle is installed at one end of the elongated ring.
[0017] As an improved technical solution, the shackle is located at the end away from the butterfly buckle, and the shackle is D-shaped.
[0018] After adopting the above technical solution, the beneficial effects of this utility model are:
[0019] 1. This utility model changes the tensioning component from a closed structure to an open structure. The tensioning component is equipped with an R-pin, a wrench, and a lock nut, making it easy to identify the maximum length position of the tensioning component. The maximum length is when the end of the screw is flush with the inner wall of the U-shaped body, preventing accidental unscrewing of the screw and facilitating construction operations. In addition, by providing the R-pin, the tensioning component can be slightly loosened, the R-pin can be pulled out, and then the corresponding pin can be pulled out, disengaging the chain from the tensioning component and completing the disassembly of the tensioning component. This greatly improves disassembly efficiency and saves disassembly time.
[0020] 2. This utility model, by changing the ram's horn hook to a flat hook, allows the flat hook to hook into the chain, and the direction of force on the chain remains unchanged, still along the length of the chain, resulting in better force distribution and a longer service life for the chain.
[0021] 3. This utility model features a foldable wrench. When not in use, the wrench can be folded down to attach the tensioning element. When in use, the wrench can be unfolded for rotation. The handle is designed on the tensioning element, making it easy to operate, preventing loss, and ensuring safety and reliability. No separate wrench is required.
[0022] 4. This utility model, by providing an anti-loosening nut, ensures that after the tensioning component is tightened, the anti-loosening nut is pressed tightly against the U-shaped body, which can prevent the tensioning component from loosening during use and ensure the safety of equipment transportation.
[0023] 5. In this utility model, the chain is changed from a lifting short chain to a binding chain. The inner length and inner width of the rings of the binding chain are greater than those of the lifting short chain. For chains with the same nominal size and length, the binding chain is lighter than the lifting short chain, which helps to reduce the labor intensity of the operator and improve the operating efficiency. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0025] Figure 1 This is a schematic diagram of the overall structure of the chain-type binding and reinforcing device of this utility model.
[0026] Figure 2 This is a schematic diagram of the tensioning component structure of the chain-type binding reinforcement device of this utility model.
[0027] Figure 3 This is a schematic diagram of the screw and wrench structure of the chain-type binding and reinforcing device of this utility model.
[0028] Figure 4 This is a schematic diagram of the working structure of the tensioning component of the chain-type binding reinforcement device of this utility model.
[0029] Figure 5 This is a schematic diagram of the disassembly structure of the tensioning component of the chain-type binding reinforcement device of this utility model.
[0030] Figure 6 This is a schematic diagram of the disassembled tensioning component of the chain-type binding reinforcement device of this utility model.
[0031] Figure 7This is a schematic diagram of the installation process of the chain-type binding reinforcement device of this utility model.
[0032] Figure 8 This is a schematic diagram of the installation process of the chain-type binding reinforcement device of this utility model.
[0033] Figure 9 This is a schematic diagram of the installation process of the chain-type binding reinforcement device of this utility model.
[0034] Figure 10 This is a schematic diagram of the installation process of the chain-type binding reinforcement device of this utility model.
[0035] Figure 11 This is a schematic diagram of the installation process of the chain-type binding reinforcement device of this utility model.
[0036] Figure 12 This is a schematic diagram of the disassembly process of the chain-type binding reinforcement device of this utility model.
[0037] Figure 13 This is a schematic diagram of the disassembly process of the chain-type binding reinforcement device of this utility model.
[0038] Figure 14 This is a schematic diagram of the disassembly process of the chain-type binding reinforcement device of this utility model.
[0039] Explanation of reference numerals in the attached figures:
[0040] 1. Chain; 2. Tensioner; 21. Screw; 22. Wrench; 23. U-shaped body; 24. Locking nut; 25. Pin; 26. R-pin; 27. Connecting rod; 28. Nut; 29. Rope; 3. Slip hook; 4. Butterfly buckle; 5. Long ring; 6. Shackle; 7. Flat hook. Detailed Implementation
[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment 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 indicator will also change accordingly.
[0043] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.
[0044] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0045] like Figures 1 to 14 As shown in the figure, this embodiment provides a chain binding reinforcement device, which includes a chain 1, with a tensioning element 2 installed at one end of the chain 1. The chain 1 is changed from a "lifting short chain" to a "binding chain". The inner length and inner width of the ring of the binding chain are greater than those of the lifting short chain. For chains 1 with the same nominal size and length, the binding chain is lighter than the lifting short chain, which helps to reduce the labor intensity of the operator and improve the operating efficiency.
[0046] Tensioner 2 includes a screw 21 mounted on one end of chain 1, a wrench 22 mounted on screw 21, a lock nut 24 threaded onto the outer surface of screw 21, and U-shaped bodies 23 threaded onto both ends of screw 21. A pin 25 is movably connected inside the U-shaped body 23, located at the end furthest from screw 21. Tensioner 2 has an open structure, making it easy to identify its maximum length setting; the maximum length is achieved when the end of screw 21 is flush with the inner wall of the U-shaped body 23. Figure 4 [As shown] The screw 21 will not be accidentally unscrewed, and the anti-loosening nut 24 is provided. After the tensioner 2 is tightened, the anti-loosening nut 24 will be pressed tightly against the U-shaped body 23. [As shown] Figure 6 As shown, this prevents the tensioner 2 from loosening during use, ensuring the safety of equipment transportation;
[0047] One end of the chain 1 is located inside the U-shaped body 23 and is movably connected to it. One end of the pin 25 passes through the chain 1 and extends outside the U-shaped body 23. An R-pin 26 is inserted inside the pin 25. The R-pin 26 is located outside the U-shaped body 23 to facilitate the fixing of the chain 1. At the same time, the insertion method makes it easy to disassemble the chain 1. With the R-pin 26, the tensioner 2 is slightly loosened. Pull out the R-pin 26, and then pull out the corresponding pin 25. Figure 5 As shown, chain 1 is disengaged from tensioner 2, completing the disassembly of tensioner 2, which greatly improves disassembly efficiency and saves disassembly time;
[0048] A flat hook 7 is installed on the chain 1, replacing the ram's horn hook in the prior art. In use, the ram's horn hook and the chain 1 are engaged in such that the chain 1 lies horizontally and is locked in the groove of the ram's horn hook, which changes the direction of force on the chain 1. The chain 1 is subjected to poor force and is easily damaged, greatly shortening its lifespan. However, the flat hook 7 is hooked in the chain link, and the direction of force on the chain link remains unchanged, still along the length of the chain 1. The force condition is better, which can make the chain 1 have a longer service life.
[0049] A connecting rod 27 is movably sleeved inside the screw 21. A nut 28 is provided on one side of the screw 21. Both ends of the connecting rod 27 pass through the screw 21, and one end is threadedly connected to the nut 28, while the other end is movably connected to the wrench 22. This allows the wrench 22 to be folded down to attach to the tensioning member 2 when not in use, and unfolded for rotation when in use. By designing the wrench 22 on the tensioning member 2, operation is convenient, it will not be lost, and it is safe and reliable, thus eliminating the need for a separate wrench 22.
[0050] The U-shaped body 23 is provided with a cord 29, and there are two sets of cords 29. The other ends of the two sets of cords 29 are respectively connected to the pin 25 and the R-pin 26. Figure 5 As shown, this design prevents the pin 25 and R pin 26 from being lost, thus facilitating their use.
[0051] One end of the chain 1 is movably connected to a ram's horn hook 3, which is located at the end away from the tensioner 2.
[0052] One end of the tensioning element 2 is fitted with a butterfly buckle 4, the other end of the butterfly buckle 4 is fitted with a long ring 5, and one end of the long ring 5 is fitted with a shackle 6.
[0053] Shackle 6 is located at the end furthest from butterfly buckle 4, and shackle 6 is D-shaped.
[0054] When installing the binding device, adjust the tensioner 2 to the maximum stroke position using wrench 22. Figure 1 and Figure 4 [As shown], then connect the ram's horn hook 3 on the binding device to the binding point on the flatbed truck, and connect the other end to the binding point on the cargo using a long ring 5 or shackle 6 [as shown]. Figure 7 [As shown], then straighten chain 1 and use flat hook 7 to hook and pull the slack part of chain 1 [as shown]. Figure 8 [As shown], then rotate the wrench 22 to tighten the tensioning element 2, bringing the binding device into the working state [as shown]. Figure 9 As shown, rotate the anti-loosening nut 24 to make it fit tightly against the U-shaped body 23 to prevent the screw 21 from loosening. Figure 10 As shown in the image, the installation operation can then be completed by folding the wrench 22. Figure 11 As shown in the image.
[0055] When disassembling the binding device, reverse the installation steps: rotate the lock nut 24 to separate it from the U-shaped body 23, then open the wrench 22 upwards. Figure 12 As shown], and rotate the wrench 22 to slightly loosen the chain 1 of the binding device [as shown]. Figure 13 As shown in the image, finally, pull out R pin 26, then pull out pin 25 to separate tensioner 2 from chain 1, remove the binding device, and the unloading operation is complete. Figure 14 As shown in the image.
[0056] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.
Claims
1. A chain type bundling reinforcement characterized by: Including chain (1), one end of chain (1) is provided with tensioning piece (2); The tensioning piece (2) comprises a screw rod (21) installed at one end of the chain (1), the screw rod (21) is provided with a wrench (22), the outer surface of the screw rod (21) is threadedly connected with a lock nut (24), both ends of the screw rod (21) are threadedly connected with a U-shaped body (23), the inside of the U-shaped body (23) is movably connected with a pin shaft (25), the pin shaft (25) is located at one end away from the screw rod (21); One end of the chain (1) is located inside the U-shaped body (23) and movably connected therewith, one end of the pin shaft (25) penetrates the chain (1) and extends outside the U-shaped body (23), the inside of the pin shaft (25) is inserted with an R pin (26), the R pin (26) is located outside the U-shaped body (23); The chain (1) is provided with a flat hook (7).
2. The chain type bundling reinforcing device according to claim 1, characterized by: The inside of the screw rod (21) is movably sleeved with a connecting rod (27), one side of the screw rod (21) is provided with a nut (28), both ends of the connecting rod (27) penetrate the screw rod (21), one end of the connecting rod (27) is threadedly connected with the nut (28), and the other end of the connecting rod (27) is movably connected with the wrench (22).
3. The chain type bundle reinforcer according to claim 2, characterized in that: The U-shaped body (23) is provided with a string (29), the string (29) is provided with two groups, the other ends of the two groups of the string (29) are connected with the pin shaft (25) and the R pin (26) respectively.
4. The chain type bundle reinforcer according to claim 3, characterized in that: One end of the chain (1) is movably connected with a sheep horn slide hook (3), the sheep horn slide hook (3) is located at one end away from the tensioning piece (2).
5. The chain type bundle reinforcer according to claim 4, characterized in that: One end of the tensioning piece (2) is provided with a butterfly buckle (4), the other end of the butterfly buckle (4) is provided with an elongated ring (5), one end of the elongated ring (5) is provided with a release buckle (6).
6. The chain type bundle reinforcer according to claim 5, characterized in that: The release buckle (6) is located at one end away from the butterfly buckle (4), and the release buckle (6) is in a D shape.