Anti-loose chain structure

Abstract

The utility model discloses an anti-loose chain structure, which relates to the technical field of chains, and comprises a plurality of chain links, a connecting structure is arranged between the adjacent chain links, the connecting structure comprises a connecting shaft, and the connecting shaft is inserted into the inner part between the adjacent chain links; the positioning sleeve assembly is fixedly connected to the middle of the connecting shaft; the locking assembly is in threaded connection with the end part of the connecting shaft, and the locking assembly is matched with the connecting shaft to be used for connecting adjacent chain links; and the gasket assembly is fixedly connected to one side of the locking assembly. The connecting shaft is connected between the two chain links in an inserted mode, then the locking assemblies are connected with the two ends of the connecting shaft, the two ends of the connecting shaft are fastened through the locking assemblies, the connecting shaft is tightly attached to the chain links, and meanwhile the positioning sleeve assemblies are matched, so that the connecting shaft is further tightly attached to the chain links; therefore, the phenomenon that the connecting shaft is loosened is avoided, and the chain is prevented from loosening.

Description

Technical Field

[0001] This utility model relates to the field of chain technology, and in particular to an anti-loosening chain structure. Background Technology

[0002] With the development of the machinery industry, the types of transmission parts have also increased. Among them, chains are an essential transmission part. Chains are generally metal links or rings, and are mostly used for mechanical transmission and traction. They are also used as chain-like objects to obstruct traffic passages (such as in streets, river or harbor entrances), and as chains used for mechanical transmission.

[0003] Existing chains are generally composed of chain plates, bushings, and connecting shafts. The bushings and connecting plates are connected by the connecting shafts to form chain links.

[0004] However, in actual use, the chains mentioned above are mainly connected by connecting shafts, which are mostly pin-type connectors. Since there is no secondary tightening, they may loosen, causing the entire chain to loosen. Therefore, we propose an anti-loosening chain structure. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-loosening chain structure. By setting a connection structure, it is convenient to use a locking component to fasten the connecting shaft. At the same time, the positioning sleeve component is used to tightly fit the connecting shaft and the chain link, thereby preventing the connecting shaft from loosening and thus preventing the chain from loosening.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-loosening chain structure, comprising multiple chain links, with a connecting structure provided between adjacent chain links, the connecting structure comprising:

[0007] A connecting shaft, which is inserted into the interior between adjacent chain links;

[0008] A positioning sleeve assembly, which is fixedly connected to the middle part of the connecting shaft;

[0009] A locking assembly, which is threaded to the end of a connecting shaft, and the locking assembly cooperates with the connecting shaft to connect adjacent chain links;

[0010] A washer assembly, which is fixedly connected to one side of the locking assembly.

[0011] Preferably, the link comprises:

[0012] Two chain plates;

[0013] Two outer bushings are fixedly connected between two chain plates;

[0014] An inner bushing is inserted into the interior of each of the outer bushings, and the inner bushings are fixedly connected to the chain plates on the adjacent chain links.

[0015] Preferably, the positioning sleeve assembly includes:

[0016] A positioning sleeve is fixedly connected to the outer surface of the connecting shaft;

[0017] An arc-shaped sleeve is connected to both ends of a positioning sleeve, and the outer diameter of the arc-shaped sleeve gradually increases from the end furthest from the positioning sleeve to the end closest to the positioning sleeve.

[0018] An annular strip is fixedly connected to the outer surface of the positioning sleeve body, and the positioning sleeve assembly is integrally formed.

[0019] Preferably, the locking assembly includes a main locking nut and a secondary locking nut that are sequentially threaded to the end of the connecting shaft, and the outer contour dimension of the secondary locking nut is smaller than that of the main locking nut.

[0020] Preferably, the washer assembly includes a stop washer fixedly connected to one side of the secondary locking nut and an anti-slip washer fixedly connected to one side of the main locking nut, both of which are made of rubber.

[0021] Preferably, the anti-slip washer includes an annular ring, a plurality of strip-shaped protrusions connected to the side of the annular ring near the chain link, and an anti-slip layer connected to the outer surface of the strip-shaped protrusions, and the anti-slip washer is integrally formed, wherein the anti-slip layer is specifically the anti-slip protrusions.

[0022] The technical effects and advantages of this utility model are as follows:

[0023] By inserting the connecting shaft between two chain links and then connecting it to both ends of the connecting shaft using a locking assembly, the two ends of the connecting shaft are tightened a second time using the locking assembly, making the connecting shaft and the chain links fit tightly together. At the same time, with the cooperation of the positioning sleeve assembly, the connecting shaft and the chain links are further tightened together, thereby preventing the connecting shaft from becoming loose after it is connected to the chain links, thus preventing the chain from becoming loose or shifting. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0025] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0026] Figure 3 This is a schematic diagram of the anti-slip washer structure of this utility model.

[0027] In the diagram: 1. Chain link; 101. Chain plate; 102. Outer bushing; 103. Inner bushing; 2. Connecting shaft; 3. Positioning sleeve assembly; 301. Positioning sleeve body; 302. Arc-shaped sleeve body; 303. Annular bar; 4. Locking assembly; 401. Main locking nut; 402. Secondary locking nut; 5. Washer assembly; 501. Stop washer; 502. Anti-slip washer; 5021. Annular ring; 5022. Strip-shaped protrusion; 5023. Anti-slip layer. Detailed Implementation

[0028] 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.

[0029] This utility model provides, for example Figure 1-3 The diagram shows an anti-loosening chain structure.

[0030] Example 1

[0031] The chain comprises multiple links 1, with a connecting structure between adjacent links 1. The connecting structure includes: a connecting shaft 2, which is inserted into the interior between adjacent links 1; a positioning sleeve assembly 3, which is fixedly connected to the middle of the connecting shaft 2; a locking assembly 4, which is threaded to the end of the connecting shaft 2 and cooperates with the connecting shaft 2 to connect adjacent links 1; and a washer assembly 5, which is fixedly connected to one side of the locking assembly 4. By inserting the connecting shaft 2 between two links 1, and then connecting the two ends of the connecting shaft 2 with the locking assembly 4, the two ends of the connecting shaft 2 are tightened a second time using the locking assembly 4, making the connecting shaft 2 and the link 1 fit tightly. At the same time, with the cooperation of the positioning sleeve assembly 3, the connecting shaft 2 and the link 1 are further tightened, thereby preventing the connecting shaft 2 from loosening after it is connected to the link 1. This prevents the chain from becoming loose or shifting, and the locking assembly 4 is not over-tightened, facilitating normal use of the chain.

[0032] Furthermore, link 1 includes: two chain plates 101; two outer bushings 102, which are fixedly connected between the two chain plates 101; and an inner bushing 103, in which an inner bushing 103 is inserted into each outer bushing 102, and the inner bushing 103 is fixedly connected to the chain plate 101 on the adjacent link 1. When assembling two adjacent links 1, the inner bushing 103 is pre-inserted into the outer bushing 102, and then the inner bushing 103 is assembled with the corresponding chain plate 101, and the outer bushing 102 is assembled with the corresponding chain plate 101. Finally, the connecting shaft 2 is inserted into the inner bushing 103, and then the locking assembly 4 is used to connect it to the connecting shaft 2.

[0033] Furthermore, the positioning sleeve assembly 3 includes: a positioning sleeve body 301, which is fixedly connected to the outer surface of the connecting shaft 2; an arc-shaped sleeve body 302, which is connected to both ends of the positioning sleeve body 301, and the outer diameter of the arc-shaped sleeve body 302 gradually increases from the end away from the positioning sleeve body 301 to the end closer to the positioning sleeve body 301; and an annular strip 303, which is fixedly connected to the outer surface of the positioning sleeve body 301. The positioning sleeve assembly 3 is integrally formed. By connecting the arc-shaped sleeve body 302, the connecting shaft 2 can be smoothly inserted into the inner bushing 103 with the positioning sleeve assembly 3, while the annular strip 303 is squeezed. By utilizing the cooperation between the annular strip 303 and the positioning sleeve body 301, the connecting shaft 2 is stably positioned inside the inner bushing 103, thereby avoiding loosening.

[0034] Furthermore, the locking assembly 4 includes a main locking nut 401 and a secondary locking nut 402 that are sequentially threaded to the end of the connecting shaft 2, and the outer contour dimension of the secondary locking nut 402 is smaller than that of the main locking nut 401. The main locking nut 401 is pre-connected to the connecting shaft 2 to fix the chain plate 101, and then the secondary locking nut 402 is further connected to the connecting shaft 2, so that the secondary locking nut 402 and the main locking nut 401 mutually restrain each other to prevent loosening.

[0035] Furthermore, the washer assembly 5 includes a stop washer 501 fixedly connected to one side of the secondary locking nut 402 and an anti-slip washer 502 fixedly connected to one side of the main locking nut 401. Both the stop washer 501 and the anti-slip washer 502 are made of rubber. By setting the stop washer 501, the friction between the main locking nut 401 and the secondary locking nut 402 is increased, thereby enhancing the restraining effect. The anti-slip washer 502 is to facilitate the stable and tight contact between the main locking nut 401 and the side of the chain plate 101.

[0036] Example 2

[0037] Example 2 further discloses, based on Example 1, that the anti-slip washer 502 includes an annular ring 5021, multiple strip-shaped protrusions 5022 connected to the annular ring 5021 near the chain link 1, and an anti-slip layer 5023 connected to the outer surface of the strip-shaped protrusions 5022. The anti-slip washer 502 is integrally formed, and the anti-slip layer 5023 is specifically an anti-slip protrusion. The design of the anti-slip layer 5023 can prevent slippage between the main locking nut 401 and the chain plate 101. The design of the strip-shaped protrusions 5022 is to facilitate better compression of the anti-slip washer 502, thereby preventing the connecting shaft 2 from loosening. It also has a certain deformation space to prevent the complete locking component 4 from completely locking the chain plate 101, causing it to be unable to rotate normally.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking chain structure comprising a plurality of chain links (1), characterized in that, A connecting structure is provided between adjacent chain segments (1), the connecting structure including: A connecting shaft (2) is inserted into the interior between adjacent chain links (1); Positioning sleeve assembly (3), which is fixedly connected to the middle part of the connecting shaft (2); Locking assembly (4), which is threaded to the end of connecting shaft (2), and the locking assembly (4) and connecting shaft (2) are used to connect adjacent chain links (1); Washer assembly (5), which is fixedly connected to one side of locking assembly (4).

2. A chain structure according to claim 1, wherein The link (1) includes: Two chain plates (101); Two outer bushings (102) are fixedly connected between two chain plates (101); An inner bushing (103) is inserted into the interior of each of the outer bushings (102), and the inner bushing (103) is fixedly connected to the chain plate (101) on the adjacent chain link (1).

3. A chain structure according to claim 2, wherein The positioning sleeve assembly (3) includes: Positioning sleeve (301), which is fixedly connected to the outer surface of the connecting shaft (2); An arc-shaped sleeve (302) is connected to both ends of a positioning sleeve (301), and the outer diameter of the arc-shaped sleeve (302) gradually increases from the end away from the positioning sleeve (301) to the end closer to the positioning sleeve (301). The annular strip (303) is fixedly connected to the outer surface of the positioning sleeve (301), and the positioning sleeve assembly (3) is integrally formed.

4. The chain structure according to claim 1, wherein The locking assembly (4) includes a main locking nut (401) and a secondary locking nut (402) that are threaded to the end of the connecting shaft (2) in sequence, and the outer contour dimension of the secondary locking nut (402) is smaller than that of the main locking nut (401).

5. A chain construction according to claim 4, c h a r a c t e r i s e d in that The washer assembly (5) includes a stop washer (501) fixedly connected to one side of the secondary locking nut (402) and an anti-slip washer (502) fixedly connected to one side of the main locking nut (401). Both the stop washer (501) and the anti-slip washer (502) are made of rubber.

6. A chain construction according to claim 5, c h a r a c t e r i s e d in that The anti-slip washer (502) includes an annular ring (5021), a plurality of strip-shaped protrusions (5022) connected to the side of the annular ring (5021) near the chain link (1), and an anti-slip layer (5023) connected to the outer surface of the strip-shaped protrusions (5022). The anti-slip washer (502) is integrally formed, and the anti-slip layer (5023) is specifically an anti-slip protrusion.

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