A detachable assembly chain

By introducing telescopic and locking mechanisms into the chain, the problem of the chain being difficult to adapt to different machine models is solved, and the chain is made detachable and length adjustable, improving adaptability and ease of maintenance.

CN224550707UActive Publication Date: 2026-07-24恒利达(福建)重工发展有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
恒利达(福建)重工发展有限公司
Filing Date
2025-08-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing detachable metal chains are difficult to adapt to various machine models, and the entire chain cannot work when the detachable components are damaged, affecting work efficiency.

Method used

A detachable assembly chain was designed, employing a telescopic mechanism and a locking mechanism. Through the combination of a movable sleeve, a compression spring, and a locking mechanism, the chain can be detached and its length adjusted, ensuring connection stability and adaptability to different machine sizes.

Benefits of technology

This achieves chain adaptability to different machine sizes, avoiding the problem of the entire chain failing to work due to damage to a single component, and improving work efficiency and ease of maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to metal chain technical field, and disclose a detachable assembly chain, this detachable assembly chain, including outer chain board, the inside of outer chain board is provided with excavated hole no. 2, the inner wall of excavated hole no. 2 is provided with excavated groove no. 1, the inner surface of excavated groove no. 1 is connected with the outer surface of protruding ring, the one end of protruding ring away from excavated groove no. 1 is fixedly connected with inner chain board, the inside of inner chain board is provided with excavated hole no. 1, be provided with telescopic mechanism on inner chain board, outer chain board, the inside of movable sleeve setting excavated hole no. 1, excavated hole no. 2. This detachable assembly chain, through being provided with telescopic mechanism, when meeting the machine equipment of different size, the force of the lock cap of both sides will produce the force of pushing in the direction of baffle under the action of pressure, drive movable sleeve to translate inwards, to push compression spring to change the overall size of chain, to realize the purpose of matching the machine of different size, improve production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of metal chain technology, specifically a detachable assembly chain. Background Technology

[0002] Chains comprise four main series: drive chains, conveyor chains, traction chains, and special-purpose chains. These are a series of links or rings, often made of metal: chain-like structures used to obstruct traffic (such as in streets, river or harbor entrances); and chains used for mechanical transmission. Chain manufacturing capability is the decisive factor in the chain manufacturing industry, and the core of chain manufacturing strength lies in the level of chain manufacturing technology. The level of chain manufacturing technology largely depends on the professionalism of chain consumers. The strength of the technological equipment directly affects the production efficiency, product quality, and economic benefits of chain manufacturing companies.

[0003] According to the above-mentioned application of a detachable metal chain (publication number: CN219639351U), a disassembly component is set on the outer chain plate and the inner chain plate. The sleeve is fixedly connected between the two inner chain plates. The outer chain plate and the inner chain plate are movably connected by a pin. The outer wall of the sleeve is movably fitted with rollers, thus forming a chain condition. If they are to be arranged in sequence, a chain is formed. Square grooves are opened at both ends of the pin, and the inner wall of the square groove is integrally formed with an internal thread limit ring, which facilitates the threaded pin on the locking cover to be threadedly connected with the internal thread limit ring, thereby realizing the disassembly and assembly of the chain.

[0004] However, in actual use, the dimensions of the disassembled components of the above-mentioned equipment are fixed. Even with the function of disassembly, it is still difficult to adapt to various models of machines on the market. If any sleeve in a traditional chain is naturally damaged or deliberately damaged, the entire chain will not work. In view of this, we propose a detachable assembly chain. Utility Model Content

[0005] The purpose of this invention is to provide a detachable assembly chain to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A detachable assembly chain includes an outer chain plate, the outer chain plate having a second hole inside, the inner wall of the second hole having a first groove, a protruding ring being engaged with the inner surface of the first groove, and an inner chain plate being fixedly connected to the end of the protruding ring away from the first groove, the inner chain plate having a first hole inside, and a telescopic mechanism being provided on the inner chain plate and the outer chain plate, the telescopic mechanism including: A movable sleeve has two internal holes, one end of which is fixedly connected to a telescopic spring. The other end of the movable sleeve has a threaded protrusion on its outer surface. The end of the compression spring away from the movable sleeve is fixedly connected to a baffle, and the outer surface of the baffle is fixedly connected to a sleeve.

[0007] Preferably, a locking mechanism is provided at one end of the movable sleeve principle baffle. The locking mechanism includes an internal thread limiting ring, which is threadedly connected to the outer surface of the threaded protrusion. A limiting cylinder is fixedly connected to the outer wall of the internal thread limiting ring. A locking cover is fixedly connected to the end of the limiting cylinder away from the movable sleeve. A groove is provided on the outer surface of the locking cover.

[0008] Preferably, the inner and outer chain plates achieve relative displacement through the extension and retraction of the movable sleeve.

[0009] Preferably, the groove is horizontally and vertically arranged on the outer surface of the lock cover.

[0010] Preferably, the size of the protruding ring matches the size of the groove.

[0011] Preferably, the internal threaded limiting ring is integrally formed and connected to the inner wall of the limiting cylinder, and the protrusion is integrally formed and connected to the side of the movable sleeve away from the baffle.

[0012] Preferably, there are multiple sets of movable sleeves and compression springs, with each pair of movable sleeves and compression springs distributed in a mirror image on both sides of the baffle.

[0013] Compared with the prior art, this utility model provides a detachable assembly chain, which has the following advantages: 1. This detachable assembly chain, equipped with a telescopic mechanism, when encountering machines of different sizes, the locking covers on both sides will generate an inward pushing force under pressure, causing the movable sleeve to move inward and thus pushing the compression spring to complete the change of the overall size of the chain, thereby achieving the purpose of matching machines of different sizes.

[0014] 2. This detachable assembly chain, through the hole one on the inner chain plate and the protruding ring and hole two on the outer chain plate, ensures that the protruding ring and hole two will still engage when the telescopic sleeve is damaged, so that the assembly chain can continue to work. This avoids the entire assembly chain from going out of service due to damage to the telescopic sleeve, thus improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the inner and outer chain plates of the present invention. Figure 3 This is a schematic diagram of the structure of the lock cover of this utility model; Figure 4 This is a schematic diagram of the telescopic mechanism of this utility model.

[0016] In the diagram: 101, outer chain plate; 102, inner chain plate; 103, protruding ring; 104, groove one; 105, hole one; 106, hole two; 2, telescopic mechanism; 201, fixed sleeve; 202, baffle; 203, compression spring; 204, movable sleeve; 205, threaded protrusion; 3, locking mechanism; 301, locking cover; 302, groove two; 303, limiting sleeve; 304, internal thread limiting ring. Detailed Implementation

[0017] like Figures 1-4 As shown, this utility model provides a technical solution: a detachable assembly chain, including an outer chain plate 101, an inner hole 106, an inner groove 104, a protruding ring 103, an inner chain plate 102 fixedly connected to the inner end of the protruding ring 103 away from the groove 104, an inner chain plate 102, an inner hole 105, and a telescopic mechanism 2 on the inner chain plate 102 and the outer chain plate 101. The telescopic mechanism 2 includes a fixed sleeve 201, a baffle 202, a compression spring 203, a movable sleeve 204, and a threaded protrusion 205.

[0018] In one embodiment of this utility model, a movable sleeve 204 is disposed inside the first hole 105 and the second hole 106. A compression spring 203 is fixedly connected to one end of the movable sleeve 204, and a threaded protrusion 205 is provided on the outer surface of the other end of the movable sleeve 204. A baffle 202 is fixedly connected to the end of the compression spring 203 away from the movable sleeve 204, and a fixed sleeve 201 is fixedly connected to the outer surface of the baffle 202.

[0019] In this embodiment of the utility model, the outer chain plate 101 and the inner chain plate 102 are initially connected by the snap-fit ​​engagement of the protruding ring 103 and the slot 104. Then, the chain is detachably assembled and its length adjusted by the elastic extension and retraction of the telescopic mechanism 2 and the threaded locking of the locking mechanism 3. The protruding ring 103 of the inner chain plate 102 is embedded in the slot 104 of the outer chain plate 101, and the size of the protruding ring 103 perfectly matches the slot 104 to ensure connection stability. The inner chain plate 102 and the outer chain plate 101 are respectively provided with a first slot 105 and a second slot 106 at their centers to accommodate the telescopic mechanism 2. The internal threaded limiting ring 304 is threadedly connected to the threaded protrusion 205 of the movable sleeve 204. The groove 302 on the outer surface of the lock cover 301 facilitates locking or loosening by rotating with tools. During disassembly, rotating the lock cover 301 causes the inner threaded limit ring 304 to disengage from the threaded protrusion 205, thus separating the inner chain plate 102 and the outer chain plate 101. During maintenance, the damaged compression spring 203 or the movable sleeve 204 can be replaced separately without replacing the entire chain. Through the cooperation of the telescopic mechanism 2 and the locking mechanism 3, the chain length can be adjusted and locked as needed, making it suitable for different working conditions. The snap-fit ​​design between the protruding ring 103 and the groove 104 ensures connection strength, while the threaded locking further increases stability. The modular design facilitates quick disassembly, repair, or replacement of parts, reducing operating costs.

[0020] In addition, to achieve the telescopic effect of the assembled chain, a telescopic mechanism 2 is provided, including a symmetrically arranged fixed sleeve 201, a baffle 202, a compression spring 203, and a movable sleeve 204. One end of the movable sleeve 204 is connected to the baffle 202 via the compression spring 203, and the other end is provided with a threaded protrusion 205. When the chain is under tension, the movable sleeve 204 slides within the first hole 105 and the second hole 106, compressing the compression spring 203 and achieving elastic telescopic movement of the chain. When the external force disappears, the compression spring 203 pushes the movable sleeve 204 back to its original position, restoring the chain to its original width, thus enabling the chain of this device to achieve a telescopic effect to match machines of different sizes.

[0021] In this utility model, during use, the protruding ring 103 of the inner chain plate 102 is aligned with the groove 104 of the outer chain plate 101 and pressed in to lock it, so that the two chain plates form a rotatable connection. Then, the telescopic mechanism 2, which consists of the compression spring 203 connecting the baffle 202 and the movable sleeve 204, is installed into the groove 105 and the groove 206 of the chain plate. Then, the threaded protrusion 205 at the end of the movable sleeve 204 is screwed into the internal threaded limiting ring 304 of the locking mechanism 3, the limiting sleeve 303 is fitted, and the part with the groove 202 is installed. During debugging, the smoothness of sliding of the movable sleeve 204 and the rebound performance of the compression spring 203 are tested by stretching the cover 301. The locking effect is checked by rotating the cover 301. When in use, simply rotate the cover 301 to unlock, adjust the chain length, and then relock. During maintenance, the parts can be disassembled and replaced by reversing the operation. The parts must be kept clean throughout the assembly process. The threaded connections should be checked regularly, fatigued springs should be replaced in time, and the locking force should be moderate. This design realizes convenient assembly, adjustment and maintenance of the chain through a modular structure.

[0022] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A detachable assembly chain, comprising an outer chain plate (101), wherein the outer chain plate (101) has a second hole (106) inside, the inner wall of the second hole (106) has a first groove (104), a protruding ring (103) is engaged with the inner surface of the first groove (104), an inner chain plate (102) is fixedly connected to the end of the protruding ring (103) away from the first groove (104), and the inner chain plate (102) has a first hole (105) inside, characterized in that: The inner chain plate (102) and the outer chain plate (101) are provided with telescopic mechanisms (2), the telescopic mechanisms (2) include: A movable sleeve (204) is disposed inside the first hole (105) and the second hole (106). A compression spring (203) is fixedly connected to one end of the movable sleeve (204), and a threaded protrusion (205) is provided on the outer surface of the other end of the movable sleeve (204). A baffle (202) is fixedly connected to the end of the compression spring (203) away from the movable sleeve (204), and a fixed sleeve (201) is fixedly connected to the outer surface of the baffle (202).

2. The detachable assembly chain according to claim 1, characterized in that: A locking mechanism (3) is provided at the end of the movable sleeve (204) away from the baffle (202). The locking mechanism (3) includes an internal thread limiting ring (304). The internal thread limiting ring (304) is threadedly connected to the outer surface of the threaded protrusion (205). A limiting sleeve (303) is fixedly connected to the outer wall of the internal thread limiting ring (304). A locking cover (301) is fixedly connected to the end of the limiting sleeve (303) away from the movable sleeve (204). A groove (302) is provided on the outer surface of the locking cover (301).

3. A detachable assembly chain according to claim 1, characterized in that: The inner chain plate (102) and the outer chain plate (101) achieve relative displacement through the extension and retraction of the movable sleeve (204).

4. A detachable assembly chain according to claim 2, characterized in that: The second groove (302) is set horizontally and vertically on the outer surface of the lock cover (301).

5. A detachable assembly chain according to claim 1, characterized in that: The dimensions of the protruding ring (103) match the dimensions of the first trench (104).

6. A detachable assembly chain according to claim 2, characterized in that: The internal threaded limiting ring (304) is integrally formed and connected to the inner wall of the limiting sleeve (303), and the threaded protrusion (205) is integrally formed and connected to the end of the movable sleeve (204) away from the baffle (202).

7. A detachable assembly chain according to claim 1, characterized in that: The movable sleeve (204) and compression spring (203) are provided in multiple sets, and every two sets of the movable sleeve (204) and compression spring (203) are distributed in a mirror image on both sides of the baffle (202).