Chain with adjustable length

Abstract

The utility model relates to a chain with adjustable length, which relates to the technical field of chain design, and comprises a first chain main body and a second chain main body, the first chain main body and the second chain main body are connected through a connecting rotating shaft and a connecting sleeve. The first chain body and the second chain body are replaced by matched chain mechanisms, and the matched chain mechanisms are connected to the two broken ends of the chain correspondingly. Buffering of the tooth ends of the gears can be achieved according to the connecting sleeves arranged on the first chain body and the second chain body in a sleeving mode, then when the length of the chain needs to be adjusted, a matched chain mechanism is adopted to act on the two broken ends of the chain correspondingly, and the length of the chain body can be removed by singular times according to the matched chain mechanism; the matching chain mechanism can adjust the length of the chain.

Description

Technical Field

[0001] The utility model relates to the technical field of chain design, in particular to a chain with adjustable length. Background Art

[0002] An adjustable chain generally refers to a chain that can be fine-tuned in length or tightness, so that the chain can be fine-tuned in situations involving special links or adjustment mechanisms, providing flexibility and convenience to the user.

[0003] For example, in the patent document with application number: 202320620518.X, a length-adjustable chain is disclosed, and it is specifically disclosed that the position of the second connecting head is adjusted by sliding the second telescopic plate on the inner side of the second connecting groove, so as to facilitate the adjustment of the length of the chain. At the same time, it is disclosed that through grooves for realizing chain drive are provided on the first chain body and the second chain body.

[0004] In the above technical solution, the through groove is rectangular. When the working gear cooperates with the through groove, the position of the through groove on the adjusted first chain body or the second chain body is offset, and the tooth end of the working gear will scratch the side wall of the through groove, or even cause jamming, which affects the driving effect of the chain and the service life of the chain body. Utility Model Content

[0005] The technical problem solved by the utility model is to solve the problem that when the through groove is rectangular, the tooth end of the acting gear easily acts on the side wall of the through groove, causing scratches or jamming of the chain.

[0006] The utility model can be implemented through the following technical scheme: a length-adjustable chain, including a first chain body and a second chain body, the first chain body and the second chain body are connected by a connecting shaft and a connecting sleeve, when a chain with a length of the chain body is removed, the first chain body and the second chain body are replaced by a matching chain mechanism, and the matching chain mechanism is respectively connected to the two ends of the broken chain.

[0007] A further technical improvement of the utility model is that the matching chain mechanism comprises a matching wide plate for connecting with the second chain body, and a wide-side rotating shaft is detachably provided on the matching wide plate.

[0008] A further technical improvement of the utility model is that the matching chain mechanism comprises a matching low plate for connecting with the first chain body, and a low-side rotating shaft is detachably provided on the matching low plate.

[0009] A further technical improvement of the utility model is that a detachable sleeve on the low-side rotating shaft is provided with a low-side matching sleeve.

[0010] A further technical improvement of the utility model is that a buffer arc plate for realizing drive buffering is arranged between the matching wide plate and the matching low plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The present application adopts a conventional first chain body and a second chain body, so that the gear tooth end can be buffered according to the connecting sleeves sleeved on the first chain body and the second chain body. Then, when the chain length needs to be adjusted, the present application adopts a matching chain mechanism to act on the two ends of the chain break respectively, so that when the length of the odd multiple of the chain body is removed, it can be realized according to the matching chain mechanism. The matching chain mechanism can adjust the chain length, and the matching chain mechanism of the present application can adapt to the connection of the chain, so this method can reduce the possibility of scratches or jams on the gear tooth end.

[0013] 2. The present application achieves buffering of the gear tooth ends by using a matching wide plate to match the second chain body, a matching low plate to match the first chain body, and a buffer arc plate arranged between the matching wide plate and the matching low plate. In the present application, the shape of the chain body is adjusted so that when a single chain body length is removed, it can be connected to the broken end of the chain separately, and corresponding connecting sleeves are mounted on the wide side shaft and the low side shaft to achieve buffering protection of the gear tooth ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the relative connection of the matching chain main body of the utility model;

[0016] Figure 2 This is a schematic diagram of the relative positions of the first chain body and the second chain body of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the matching chain mechanism of the utility model;

[0018] Figure 4 It is a schematic diagram of the position of the low side matching sleeve of the utility model.

[0019] In the figure: 1. first chain body; 11. first chain plate; 2. second chain body; 3. connecting sleeve; 4. connecting shaft; 5. matching chain mechanism; 51. matching wide plate; 52. wide side shaft; 53. low side shaft; 54. matching low plate; 55. buffer arc plate; 56. low side matching sleeve. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] See also Figure 1-4 As shown, a length-adjustable chain includes a matching chain mechanism 5, and the matching chain mechanism 5 is used to achieve length adjustment between chains.

[0022] A conventional chain includes a first chain body 1 and a second chain body 2 which are evenly distributed. The width of the first chain body 1 is greater than that of the second chain body 2, and a connecting sleeve 3 is arranged on the second chain body 2. A connecting shaft 4 is detachably arranged on the first chain body 1, and the connecting shaft 4 is sleeved on the connecting sleeve 3 to realize the rotational connection between the first chain body 1 and the second chain body 2. During this process, the connecting shaft 4 on the first chain body 1 is covered by the connecting sleeve 3. When the acting gear is working, the tooth end will be driven between the two columnar connecting sleeves 3. During this process, the columnar connecting sleeve 3 is used to realize the connection of the tooth end, thereby reducing the friction generated between the tooth end and the connecting sleeve 3.

[0023] However, in the above technical solution, when adjusting the length of the first chain body 1 and the second chain body 2, it is necessary to remove the first chain body 1 and the second chain body 2 as a group of chain groups so as to be suitable for connecting chain bodies of different widths in sequence. When some adjustments are required, the removal of a group of chain groups will make the chain tighter as a whole, which is not convenient for making small adjustments to the tightness of the chain, that is, when adjusting the width of a chain body, it needs to be adjusted again.

[0024] When adjusting the distance of the width of a chain body, the present application adopts a matching chain mechanism 5 to achieve it. Therefore, the matching chain mechanism 5 includes a matching wide plate 51 for connecting with the side of the first chain body 1 that is removed, and also includes a matching low plate 54 for connecting with the side of the second chain body 2 that is removed. When in use, the matching wide plate 51 and the matching low plate 54 are replaced with the original chain set for use. In the present application, the width of the matching wide plate 51 is the same as the width of the first chain plate 11 between the first chain body 1, and the width of the matching low plate 54 is the same as the width of the second chain plate between the second chain body 2, thereby realizing the replacement function.

[0025] As a further embodiment of the present application, the matching wide plate 51 and the matching low plate 54 are connected by a buffer arc plate 55. The buffer arc plate 55 is arc-shaped and is used to reduce the friction force generated when the tooth end enters the through groove.

[0026] The wide plate 51 is provided with a removable wide-side rotating shaft 52, and the low-side rotating shaft 53 is provided with a removable low-side rotating shaft 53 on the matching low plate 54. That is, when in use, the wide-side rotating shaft 52 is used to connect with the second chain body 2, that is, the wide-side rotating shaft 52 is passed through the corresponding connecting sleeve 3 on the second chain body 2, and the rotating connection between the wide plate 51 and the second chain body 2 is realized by utilizing the rotating connection between the wide-side rotating shaft 52 and the connecting sleeve 3. The low-side rotating shaft 53 is used to connect with the first chain body 1, that is, the low-side rotating shaft 53 is passed through the low-side matching sleeve 56, and then the first chain body 1 is connected to the low-side rotating shaft 53. The first chain body 1 is arranged on the outside of the matching low plate 54 to realize the connection of the first chain body 1. When in use, by disassembling the next group of chains, but at the same time, the use of the matching chain mechanism 5 can be utilized to realize the removal of a chain body length, so as to be suitable for the removal of a single multiple of the chain body length, so as to realize a more precise adjustment of the chain length.

[0027] When the utility model is used, when it is necessary to adjust the length of the double-numbered chain body, it is necessary to remove an integer number of chain groups as needed, that is, to remove an integer number of chain groups consisting of the first chain body 1 and the second chain body 2, so as to adjust the length of the chain;

[0028] When it is necessary to adjust the length of an odd-numbered chain body, it is necessary to remove the chain group consisting of an integer number of first chain bodies 1 and second chain bodies 2, and then activate the matching chain mechanism 5, under which the matching wide plate 51 and the second chain body 2 are connected, that is, the wide-side rotating shaft 52 is passed through the corresponding connecting sleeve 3 on the second chain body 2, and the rotational connection between the wide-side rotating shaft 52 and the connecting sleeve 3 is utilized to realize the rotational connection between the matching wide plate 51 and the second chain body 2, and then the low-side rotating shaft 53 is passed through the low-side matching sleeve 56, and then the first chain body 1 is connected to the low-side rotating shaft 53, and the first chain body 1 is arranged on the outside of the matching low plate 54 to realize the connection of the first chain body 1.

[0029] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A length-adjustable chain, comprising a first chain body (1) and a second chain body (2), wherein the first chain body (1) and the second chain body (2) are connected via a connecting shaft (4) and a connecting sleeve (3), characterized in that: When a chain having a chain body length is removed, the first chain body (1) and the second chain body (2) are replaced by a matching chain mechanism (5), and the matching chain mechanism (5) is respectively connected to the two ends of the broken chain.

2. A length-adjustable chain according to claim 1, characterized in that: The matching chain mechanism (5) comprises a matching wide plate (51) for connecting with the second chain body (2), and a wide-side rotating shaft (52) is detachably provided on the matching wide plate (51).

3. A length-adjustable chain according to claim 2, characterized in that: The matching chain mechanism (5) comprises a matching low plate (54) for connecting with the first chain body (1), and a low-side rotating shaft (53) is detachably provided on the matching low plate (54).

4. A length-adjustable chain according to claim 3, characterized in that: The low-side rotating shaft (53) is detachably sleeved with a low-side matching sleeve (56).

5. The length-adjustable chain according to claim 3, characterized in that: A buffer arc plate (55) for achieving drive buffering is arranged between the matching wide plate (51) and the matching low plate (54).

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