Easily-assembled conveying chain with self-locking function

Abstract

The easy-to-assemble conveying chain with the self-locking function comprises a plurality of adjacent chain links, each chain link comprises a connecting part, a middle part and two connecting plates, the connecting plates are installed on one side of the middle part, the two connecting plates are fixedly installed on the side, away from the connecting part, of the middle part, and the two connecting plates are parallel to each other; the distance between the two connecting plates is larger than the width of the connecting part, a connecting hole is formed in the connecting part, corresponding assembling holes are formed in the two connecting plates, a shaft pin is arranged between the two connecting plates, a connecting shaft is arranged on the shaft pin, the two ends of the shaft pin are located in the assembling holes and rotationally connected with the connecting plates, and a connecting groove is formed in the connecting shaft. The connecting part of one chain link is moved to the position between the two connecting plates of the other chain link, the shaft pin and the connecting shaft sequentially penetrate through the assembling hole and the connecting hole, the adjacent chain links can be conveniently connected, and after the connecting shaft moves into the connecting hole, the connecting part is moved so that the inner wall of the connecting hole can abut against the inner wall of the connecting groove. And the connection stability between the adjacent chain links is improved.

Description

Technical Field

[0001] This application relates to the technical field of chains, and in particular to an easy-to-assemble conveyor chain with a self-locking function. Background Technology

[0002] Chains, as common transmission devices, are widely used in heavy machinery, bicycles, escalators, and other fields. In transmission structures where high transmission precision is not required, sprockets and chain drives are mostly used. A chain is usually composed of several chain links connected by chain plates and fixed in series with connecting pins. A complete chain unit may include components such as two inner chain plates, two outer chain plates, bushings, pins, and rollers.

[0003] Traditional chains have some problems in assembly and use. For example, the connections between chain links may not be secure enough, and they are prone to loosening during transportation or use, thus affecting the chain's transmission efficiency and safety. Utility Model Content

[0004] To improve the stability of the connection between adjacent links, this application provides an easy-to-assemble conveyor chain with a self-locking function.

[0005] This application provides an easy-to-assemble conveyor chain with a self-locking function, using the following technical solution:

[0006] An easy-to-assemble conveyor chain with self-locking function includes several adjacent links. The connection includes a connecting part, a middle part, and two connecting plates. The connecting plate is installed on one side of the middle part, and the two connecting plates are fixedly installed on the side of the middle part away from the connecting part. The two connecting plates are parallel to each other, and the distance between the two connecting plates is greater than the width of the connecting part. The connecting part has a connecting hole, and the two connecting plates have corresponding assembly holes. A pin is provided between the two connecting plates, and a connecting shaft is provided on the pin. The two ends of the pin are located in the assembly holes and are rotatably connected to the connecting plates. A connecting groove is provided on the connecting shaft.

[0007] By adopting the above technical solution, the connecting part of one link is moved to the middle of the two connecting plates of another link, and the shaft pin and connecting shaft are passed through the assembly hole and connecting hole in sequence. The connecting shaft is located in the connecting hole, which facilitates the connection of adjacent links. After the connecting shaft is moved into the connecting hole, the connecting part is moved so that the inner wall of the connecting hole abuts against the inner wall of the connecting groove, thereby improving the stability of the connection between adjacent links.

[0008] Optionally, the inner wall of the connecting hole near the middle part has an arc surface, and the inner wall of the connecting hole away from the middle part has a flat surface.

[0009] By adopting the above technical solution, the connecting shaft is located inside the connecting hole, and the flat part of the connecting hole is located inside the connecting groove of the connecting shaft, which improves the stability of the connection between the connecting shaft and the connecting part. The arc surface of the connecting hole fits with the back of the connecting shaft. When the chain link rotates, the connecting part rotates, which drives the connecting shaft to rotate.

[0010] Optionally, the cross-section of the pin is circular, and the cross-section of the pin is smaller than the cross-section of the connecting shaft.

[0011] By adopting the above technical solution, the circular cross-section of the shaft pin facilitates rotation within the assembly hole.

[0012] Optionally, the cross-section of the connecting shaft is elliptical, and the size of the mounting hole matches the size of the cross-section of the connecting shaft.

[0013] By adopting the above technical solution, the size of the assembly hole matches the size of the connecting shaft cross section. When the pin rotates, the connecting shaft is prevented from detaching from the assembly hole because both the assembly hole and the connecting shaft cross section are elliptical.

[0014] Optionally, a groove is provided at the top of the middle portion.

[0015] By adopting the above technical solution, the overall weight of the chain links is reduced through the grooves, making it easier to handle and assemble the chain links.

[0016] Optionally, the connection position between the connecting plate and the middle part is set to an arc surface.

[0017] By adopting the above technical solution, the curved surface makes it easier for workers to pick up the chain links for assembly.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] Move the connecting part of one link to the middle of the two connecting plates of another link, and pass the pin and connecting shaft through the assembly hole and connecting hole in sequence. The connecting shaft is located in the connecting hole, which facilitates the connection of adjacent links. After the connecting shaft is moved into the connecting hole, move the connecting part so that the inner wall of the connecting hole abuts against the inner wall of the connecting groove, thereby improving the stability of the connection between adjacent links.

[0020] The connecting shaft is located inside the connecting hole, and the flat part of the connecting hole is located inside the connecting groove of the connecting shaft, which improves the stability of the connection between the connecting shaft and the connecting part. The arc surface of the connecting hole fits against the back of the connecting shaft. When the chain link rotates, the connecting part rotates, which drives the connecting shaft to rotate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an easy-to-assemble conveyor chain with a self-locking function.

[0022] Figure 2This is a schematic diagram illustrating the structure of the chain segment in the embodiments of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Link; 2. Connecting part; 21. Connecting hole; 3. Middle part; 31. Groove; 4. Connecting plate; 41. Assembly hole; 5. Shaft pin; 6. Connecting shaft; 61. Connecting groove. Detailed Implementation

[0024] The present application will be further described in detail below with reference to all the accompanying drawings.

[0025] This application discloses an easy-to-assemble conveyor chain with a self-locking function.

[0026] Reference Figure 1 and Figure 2 An easy-to-assemble conveyor chain with self-locking function includes several adjacent chain links 1. The connection includes a connecting part 2, a middle part 3, and two connecting plates 4. The connecting plate 4 is installed on one side of the middle part 3, and the two connecting plates 4 are fixedly installed on the side of the middle part 3 away from the connecting part 2. The two connecting plates 4 are parallel to each other, and the distance between the two connecting plates 4 is greater than the width of the connecting part 2. The connecting part 2 is provided with a connecting hole 21, and the two connecting plates 4 are provided with corresponding assembly holes 41. A shaft pin 5 is provided in the middle of the two connecting plates 4, and a connecting shaft 6 is provided on the shaft pin 5. The two ends of the shaft pin 5 are located in the assembly holes 41 and are rotatably connected to the connecting plates 4. A connecting groove 61 is provided on the connecting shaft 6. Move the connecting part 2 of one link 1 to the middle of the two connecting plates 4 of another link 1. Pass the pin 5 and the connecting shaft 6 through the assembly hole 41 and the connecting hole 21 in sequence. The connecting shaft 6 is located in the connecting hole 21, which facilitates the connection of adjacent links 1. After the connecting shaft 6 is moved into the connecting hole 21, move the connecting part 2 so that the inner wall of the connecting hole 21 abuts against the inner wall of the connecting groove 61, thereby improving the stability of the connection between adjacent links 1.

[0027] Reference Figure 1 and Figure 2 The inner wall of the connecting hole 21 near the middle part 3 has an arc surface, and the inner wall of the connecting hole 21 away from the middle part 3 has a flat surface. The connecting shaft 6 is located inside the connecting hole 21, and the flat part of the connecting hole 21 is located inside the connecting groove 61 of the connecting shaft 6, which improves the stability of the connection between the connecting shaft 6 and the connecting part 2. The arc surface of the connecting hole 21 fits against the back of the connecting shaft 6. When the chain link 1 rotates, the connecting part 2 rotates, which drives the connecting shaft 6 to rotate.

[0028] Reference Figure 1 and Figure 2 The cross-section of the pin 5 is circular, and its cross-section is smaller than that of the connecting shaft 6. The circular cross-section of the pin 5 facilitates rotation within the mounting hole 41.

[0029] Reference Figure 1 and Figure 2The cross-section of the connecting shaft 6 is elliptical, and the size of the mounting hole 41 matches the size of the cross-section of the connecting shaft 6. Because both the mounting hole 41 and the cross-section of the connecting shaft 6 are elliptical, when the shaft pin 5 rotates, the elliptical shape of both prevents the connecting shaft 6 from disengaging from the mounting hole 41.

[0030] Reference Figure 1 and Figure 2 The top of the middle part 3 has a groove 31. The groove 31 reduces the overall weight of the chain link 1, making it easier to transport and assemble the chain link 1.

[0031] Reference Figure 1 and Figure 2 The connection point between the connecting plate 4 and the middle part 3 is set as an arc surface. The arc surface makes it easier for workers to pick up the chain link 1 for assembly.

[0032] The implementation principle of an easy-to-assemble conveyor chain with self-locking function in this application embodiment is as follows: When two chain links 1 are kept parallel, the connecting hole 21 of the two chain links 1 is aligned with the assembly hole 41. The assembly hole 41 passing through one chain link 1 is inserted into the connecting hole 21 of the other chain link. The connecting shaft 6 is located in the connecting hole 21. The two chain links 1 are moved in opposite directions. The flat part of the connecting hole 21 is located in the connecting groove 61 of the connecting shaft 6. The arc surface of the connecting hole 21 is in contact with the back of the connecting shaft 6, which improves the stability of the connection between the connecting shaft 6 and the connecting part 2, improves the stability of the connection between adjacent chain links 1, and prevents the connecting shaft 6 from falling off between the two chain links 1.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An easy-to-assemble conveyor chain with self-locking function, comprising a plurality of adjacent chain links (1), characterized in that: The link (1) includes a connecting part (2), a middle part (3) and two connecting plates (4). The connecting plate (4) is installed on one side of the middle part (3). The two connecting plates (4) are fixedly installed on the side of the middle part (3) away from the connecting part (2). The two connecting plates (4) are parallel to each other. The distance between the two connecting plates (4) is greater than the width of the connecting part (2). The connecting part (2) has a connecting hole (21). The two connecting plates (4) have corresponding assembly holes (41). A shaft pin (5) is provided between the two connecting plates (4). A connecting shaft (6) is provided on the shaft pin (5). The two ends of the shaft pin (5) are located in the assembly holes (41) and are rotatably connected to the connecting plate (4). A connecting groove (61) is provided on the connecting shaft (6).

2. The easy-to-assemble conveyor chain with self-locking function according to claim 1, characterized in that: The inner wall of the connecting hole (21) near the middle part (3) has an arc surface, and the inner wall of the connecting hole (21) away from the middle part (3) has a flat surface.

3. The easy-to-assemble conveyor chain with self-locking function according to claim 1, characterized in that: The cross-section of the pin (5) is circular, and the cross-section of the pin (5) is smaller than the cross-section of the connecting shaft (6).

4. The easy-to-assemble conveyor chain with self-locking function according to claim 1, characterized in that: The cross-section of the connecting shaft (6) is elliptical, and the size of the assembly hole (41) matches the size of the cross-section of the connecting shaft (6).

5. The easy-to-assemble conveyor chain with self-locking function according to claim 1, characterized in that: The top of the middle part (3) is provided with a groove (31).

6. The easy-to-assemble conveyor chain with self-locking function according to claim 1, characterized in that: The connection position between the connecting plate (4) and the middle part (3) is set as an arc surface.

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