Detachable metal chain

Abstract

The utility model relates to the technical field of metal chains, and discloses a detachable metal chain which comprises two inner chain plates, two outer chain plates installed outside the two inner chain plates and shaft sleeves installed inside the two inner chain plates, a plug pin is connected into each shaft sleeve in a sliding mode, and the two ends of each plug pin sequentially penetrate through the inner chain plates and the outer chain plates on the two sides. The baffles and the dismounting assemblies are located on the outer sides of the two outer chain plates correspondingly and abut against the sides, away from each other, of the two outer chain plates correspondingly. According to the detachable metal chain, the inner chain plates and the outer chain plates can be connected through the baffles, the plug pins and the detaching assemblies, when the chain is partially damaged and use is affected, connection between the inner chain plates and the outer chain plates can be detached through the detaching assemblies, and the damaged part can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of metal chains, and particularly relates to a detachable metal chain. Background Art

[0002] A metal chain is a flexible component formed by connecting metal rings or metal sheets through welding, riveting or perforation, and is widely used in many fields such as industry, decoration, transportation, and fashion accessories.

[0003] For example, the patent with the publication number CN216343697U discloses a detachable metal chain, which includes outer chain plates, inner chain plates and first bushings; connection holes are opened at both ends on one side of the outer chain plates and the inner chain plates, second bushings are fixedly arranged at both ends of the first bushing, the cross-section of the connection hole is larger than the cross-section of the second bushing, the inner chain plates pass through the second bushings and are movably connected with the first bushings, the outer chain plates pass through the second bushings and are movably connected with the inner chain plates, and elastic clips are movably connected to the outer surfaces of the second bushings. By arranging second bushings at both ends of the first bushing, both the outer chain plates and the inner chain plates are movably connected with the outer surfaces of the second bushings through the connection holes, and one side of the inner chain plates is movably connected with the second bushings. When it is necessary to repair or replace the inner chain plates or the outer chain plates, the limit sleeve is rotated to separate the fixed column from the elastic clip, and then the rubber ring and the elastic clip are removed, and the outer chain plates and the inner chain plates can be removed.

[0004] However, the metal chain in the above technology still has the following problems:

[0005] Since the chain itself is used for the transmission between two components, during the high-speed rotation of the chain, the vibration generated during the chain transmission is extremely likely to cause the rubber ring to fall off or even break from the elastic clip, and then cause the elastic clip to become loose, resulting in the breakage of the metal chain, and the use stability is poor. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a detachable metal chain, for example: it can make the connection of the chain more firm and stable while being convenient for disassembly and maintenance.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A detachable metal chain, including two inner chain plates, two outer chain plates installed outside the two inner chain plates, and bushings installed inside the two inner chain plates. A pin is slidably connected inside the bushing. The two ends of the pin sequentially penetrate through the inner chain plates and the outer chain plates on both sides, and are respectively connected with a baffle plate and a disassembly component. The baffle plate and the disassembly component are respectively located outside the two outer chain plates, and respectively abut against the mutually remote sides of the two outer chain plates.

[0008] Further, the disassembly component includes an external thread post and an internal thread ring. The external thread post is fixedly connected to the end of the plug pin away from the baffle. The internal thread ring is threadedly connected to the external thread post. The internal thread ring abuts against the adjacent outer chain plate. A limiting groove is formed at the end of the external thread post away from the plug pin, and a limiting component is connected in the limiting groove.

[0009] Further, the number of the limiting grooves is two, and the two limiting grooves are symmetrically arranged.

[0010] Further, the limiting component includes a telescopic spring and a limiting block. One end of the telescopic spring is fixedly connected to the inner wall of the limiting groove, and the other end of the telescopic spring is fixedly connected to the limiting block. The limiting block is slidably connected to the limiting groove. The side of the limiting block close to the plug pin abuts against the internal thread ring.

[0011] Further, a limiting hole is formed through the side of the limiting block close to the telescopic spring. A limiting rod is fixedly connected in the limiting groove. The other end of the limiting rod sequentially passes through the telescopic spring and the limiting hole and is slidably connected to the limiting hole.

[0012] Further, an anti - detachment hole is formed on the side of the limiting hole away from the telescopic spring. An anti - detachment block is fixedly connected to the end of the limiting rod close to the limiting hole. The anti - detachment block is slidably connected to the anti - detachment hole.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] For this detachable metal chain, through the baffle, the plug pin and the disassembly component, the inner chain plate and the outer chain plate can be connected. When part of the chain is damaged and affects the use, the connection between the inner chain plate and the outer chain plate can be disassembled through the disassembly component, which is convenient for replacing the damaged part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall external connection structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the connection structure of a single - group inner chain plate and outer chain plate of the present utility model;

[0017] Figure 3 is an exploded schematic diagram of a partial connection structure based on Figure 2 ;

[0018] Figure 4 is a schematic diagram of a partial connection structure based on Figure 3 ;

[0019] Figure 5 is a schematic cross - sectional view of the connection structure based on Figure 4 ;

[0020] Figure 6 is based onFigure 5 Schematic diagram of the limit block connection structure

[0021] In the figure: 1, inner link plate; 2, outer link plate; 3, bushing; 4, pin; 5, baffle; 6, external thread post; 7, internal thread ring; 8, limit block; 9, limit rod; 10, anti - detachment block; 11, telescopic spring; 601, limit groove; 801, limit hole; 802, anti - detachment hole Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments

[0023] Please refer to Figure 1 - Figure 6 , a detachable metal chain, including two inner link plates 1, two outer link plates 2 installed outside the two inner link plates 1, and a bushing 3 installed inside the two inner link plates 1. A pin 4 is slidably connected inside the bushing 3. The two ends of the pin 4 sequentially penetrate through the inner link plates 1 and the outer link plates 2 on both sides, and are respectively connected with a baffle 5 and a disassembly component. The baffle 5 and the disassembly component are respectively located outside the two outer link plates 2, and respectively abut against the mutually - remote sides of the two outer link plates 2

[0024] As Figure 1 - Figure 6 shown, a detachable metal chain in the present utility model is similar in structure to the existing detachable metal chain. For example, a detachable metal chain disclosed in the patent with the publication number CN216343697U. The main improvement point of the present utility model is that while facilitating disassembly, it can ensure the stability of the chain connection position, avoiding the situation of chain disconnection during use. As Figures 1 to 6 shown, when the detachable metal chain in the present utility model is in use, the two outer link plates 2 are sleeved outside the inner link plates 1. Then, the pin 4 is inserted into the bushing 3 from one side of the outer link plate 2 and the inner link plate 1 and penetrates out from the other end. Then, the disassembly component is used for fixation, and in cooperation with the baffle 5 at the other end, the outer link plate 2 and the inner link plate 1 are connected. When a certain section of the outer link plate 2 or the inner link plate 1 of the chain is damaged, the pin 4 can be pulled out through the disassembly component, so as to disassemble the connection between the outer link plate 2 and the inner link plate 1, thereby replacing the chain, and the disassembly and maintenance are more convenient and fast

[0025] As Figure 1 - Figure 6As shown, the disassembly component includes an external thread post 6 and an internal thread ring 7. The external thread post 6 is fixedly connected to one end of the pin 4 away from the baffle 5. The internal thread ring 7 is threadedly connected to the external thread post 6. The internal thread ring 7 abuts against the adjacent outer link plate 2. A limiting groove 601 is formed at one end of the external thread post 6 away from the pin 4, and a limiting component is connected in the limiting groove 601. The internal thread ring 7 is screwed inward on the external thread post 6, so that the internal thread ring 7 gradually approaches the outer link plate 2 on the inner side. With the cooperation of the baffle 5 at the other end of the pin 4, the outer link plates 2 on both sides are installed on the outer sides of the inner link plates 1 on both sides. Subsequently, the internal thread ring 7 is limited by the limiting components in the two limiting grooves 601, avoiding the internal thread ring 7 from rotating outward and loosening or even falling off after installation, and improving the connection firmness of the internal thread ring 7.

[0026] As Figure 1 - Figure 6 shown, the number of the limiting grooves 601 is two, and the two limiting grooves 601 are symmetrically arranged. Setting the limiting grooves 601 to two and arranging them symmetrically can form a more firm and stable limiting effect on the internal thread ring 7, avoiding the internal thread ring 7 from being squeezed and tilted on the external thread post 6.

[0027] As Figure 1 - Figure 6 shown, the limiting component includes a telescopic spring 11 and a limiting block 8. One end of the telescopic spring 11 is fixedly connected to the inner wall of the limiting groove 601, the other end of the telescopic spring 11 is fixedly connected to the limiting block 8, the limiting block 8 is slidably connected to the limiting groove 601, and one side of the limiting block 8 close to the pin 4 abuts against the internal thread ring 7. The telescopic spring 11 pushes the limiting block 8 outward from the limiting groove 601 by a certain distance, so that the limiting block 8 presses the internal thread ring 7 screwed on the external thread post 6 inward, thus preventing the internal thread ring 7 from moving outward and falling off the external thread post 6. When it is necessary to disassemble the internal thread ring 7 from the external thread post 6, the limiting block 8 is pressed inward into the limiting groove 601, so that the limiting block 8 is located in the limiting groove 601, and the internal thread ring 7 can be screwed and disassembled from the external thread post 6.

[0028] As Figure 1 - Figure 6 shown, a limiting hole 801 is formed through one side of the limiting block 8 close to the telescopic spring 11. A limiting rod 9 is fixedly connected in the limiting groove 601. The other end of the limiting rod 9 sequentially passes through the telescopic spring 11 and the limiting hole 801 and is slidably connected to the limiting hole 801. Through the connection between the limiting rod 9 and the limiting hole 801, support can be provided for the limiting block 8 to prevent the limiting block 8 from sliding off the inner side of the limiting groove 601.

[0029] As Figure 1 - Figure 6As shown, an anti - detachment hole 802 is formed on the side of the limit hole 801 away from the telescopic spring 11. One end of the limit rod 9 close to the limit hole 801 is fixedly connected with an anti - detachment block 10, and the anti - detachment block 10 is slidably connected with the anti - detachment hole 802. When the telescopic spring 11 pushes the limit block 8 outward, through the connection between the anti - detachment block 10 and the anti - detachment hole 802, the connection between the limit block 8 and the limit rod 9 can be prevented from disengaging, improving the connection stability of the limit block 8 in the limit groove 601.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. A detachable metal chain, comprising two inner link plates (1), two outer link plates (2) installed outside the two inner link plates (1), and a bushing (3) installed inside the two inner link plates (1), characterized in that: A pin (4) is slidably connected inside the bushing (3). The two ends of the pin (4) sequentially penetrate through the inner link plates (1) and the outer link plates (2) on both sides, and are respectively connected with a baffle (5) and a disassembly component. The baffle (5) and the disassembly component are respectively located outside the two outer link plates (2), and respectively abut against the sides of the two outer link plates (2) that are away from each other. The disassembly component includes an external thread column (6) and an internal thread ring (7). The external thread column (6) is fixedly connected to the end of the pin (4) away from the baffle (5). The internal thread ring (7) is threadedly connected to the external thread column (6). The internal thread ring (7) abuts against the adjacent outer link plate (2). A limiting groove (601) is opened at the end of the external thread column (6) away from the pin (4). A limiting component is connected inside the limiting groove (601). The number of the limiting grooves (601) is two, and the two limiting grooves (601) are symmetrically arranged. The limiting component includes a telescopic spring (11) and a limiting block (8). One end of the telescopic spring (11) is fixedly connected to the inner wall of the limiting groove (601). The other end of the telescopic spring (11) is fixedly connected to the limiting block (8). The limiting block (8) is slidably connected to the limiting groove (601). The side of the limiting block (8) close to the pin (4) abuts against the internal thread ring (7).

2. A detachable metal chain according to claim 1, characterized in that: A limiting hole (801) is opened through the side of the limiting block (8) close to the telescopic spring (11). A limiting rod (9) is fixedly connected inside the limiting groove (601). The other end of the limiting rod (9) sequentially passes through the telescopic spring (11) and the limiting hole (801), and is slidably connected to the limiting hole (801).

3. A detachable metal chain according to claim 2, wherein: An anti - detachment hole (802) is opened on the side of the limiting hole (801) away from the telescopic spring (11). An anti - detachment block (10) is fixedly connected to the end of the limiting rod (9) close to the limiting hole (801). The anti - detachment block (10) is slidably connected to the anti - detachment hole (802).

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