Chain cover

Abstract

The utility model discloses a chain cover which comprises a first chain cover body arranged on one side of a bicycle chain and a second chain cover body arranged on the other side of the bicycle chain, and a first through hole matched with a flywheel and a second through hole matched with a chain wheel are formed in the two sides of the first chain cover body respectively. The second chain cover comprises a third cover body arranged at the crankset and provided with a third through hole matched with the crankset, and a fourth cover body arranged at the flywheel and provided with a fourth through hole matched with the flywheel; the third cover body and / or the fourth cover body are / is provided with at least one protection plate extending to the fourth cover body or the third cover body, and the third cover body and the fourth cover body are detachably connected. The first chain cover and the second chain cover are detachably connected. The first cover body is detachably connected with the second cover body, the third cover body is detachably connected with the second cover body, the first through hole is formed in the second cover body, the third cover body is connected with the first cover body and the second cover body in a buckled mode, and the fourth cover body is connected with the second cover body in a buckled mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycle accessories, and particularly relates to a chain cover. Background Art

[0002] A chain cover is a protective cover installed on the outside of a bicycle chain. Common chain covers are half chain covers and full chain covers. When the half chain cover is installed on the outside of a bicycle chain, a portion of the bicycle chain is exposed to the outside, which facilitates maintenance when the chain falls. For example, the existing utility model patent CN203497080U provides a "Bicycle Chain Cover", which discloses a semi-enclosed chain cover. Although it can protect the flywheel and the chainplate, it does not provide adequate protection for the chain. Therefore, it is very important to obtain a chain cover that overcomes the above-mentioned defects. Utility Model Content

[0003] To solve at least one of the above technical problems, the present invention provides a chain cover, comprising a first chain cover arranged on one side of a bicycle chain, and a second chain cover arranged on the other side of the bicycle chain, wherein the first chain cover is provided with a first through-hole cooperating with a flywheel and a second through-hole cooperating with a chain plate on both sides, and the second chain cover comprises a third cover body arranged at the chain plate and provided with a third through-hole cooperating with the chain plate, and a fourth cover body arranged at the flywheel and provided with a fourth through-hole cooperating with the flywheel, wherein the third cover body and / or the fourth cover body are provided with at least one guard plate extending to the fourth cover body or the third cover body, and the third cover body and the fourth cover body are detachably connected;

[0004] The first chain cover and the second chain cover are detachably connected, and a protective chamber for accommodating a flywheel, a chain, and a chainring is formed between the first chain cover and the second chain cover. The first chain cover is bent toward the second chain cover to form a thickness portion.

[0005] Through the above technical solution, the setting of the guard plate can realize the full enclosure of the chain cover. The range of the guard plate can be adapted to the chain to fully protect the flywheel, chain and chainring of the bicycle. In addition, the chain cover of the utility model protects the chain, chainring and flywheel from being exposed to the outside, avoiding injuries caused by people's fingers or feet touching the above parts.

[0006] The first chain cover includes a first cover body and a second cover body connected to the first cover body via a first detachable structure. The first detachable structure includes at least one first stop block disposed on the first cover body and / or the second cover body. The outer wall of at least one first stop block abuts against the inner wall of the second cover body or the first cover body during connection to limit the position. The first and second cover bodies are both provided with a semi-long hole, and the two semi-long holes form a second through-hole.

[0007] The first limiting block includes a first contact portion and a second contact portion having an included angle with the first contact portion, and the first contact portion and the second contact portion respectively contact the second cover body or two adjacent inner walls of the first cover body.

[0008] The second cover body and / or the first cover body is provided with a first groove adapted to the first limiting block.

[0009] There are two guard plates, and a spacing perforation is formed between the two guard plates, which can achieve ventilation and reduce the weight of the equipment.

[0010] The third cover body and the fourth cover body are connected via a second detachable structure, and the second connection structure includes at least one pair of first plug-ins respectively provided on the third cover body and the fourth cover body, and a first slot matched with the first plug-in.

[0011] The first chain cover and the third cover are connected by a third detachable structure, which includes at least one set of first hooks provided on the first chain cover and the third cover, and a first slot that cooperates with the first hooks. The first hooks are provided on the first and second covers, and the first slot is provided on the third cover.

[0012] The first chain cover and the fourth cover body are connected via a fourth detachable structure. The fourth detachable structure includes at least one set of second hooks provided on the first chain cover and the fourth cover body and a second slot matched with the second hook.

[0013] The end of the fourth cover forms a third hook, and the inner wall of the first chain cover is provided with a third slot that matches the third hook. The second hook and the third slot are provided on the second cover.

[0014] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, and the first cover body, the second cover body, the third cover body and the fourth cover body of the present invention are connected by a detachable structure, which can facilitate the installation and partial disassembly of the chain cover. For example, when repairing the chainring, the third cover body can be removed, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is an exploded view of the second chain cover of the present utility model;

[0017] Figure 3 This is an exploded view of the first chain cover of the present invention;

[0018] Figure 4 The utility model is a three-dimensional cross-section Figure 1 ;

[0019] Figure 5 The utility model is a three-dimensional cross-section Figure 2 ;

[0020] Figure 6 This is a three-dimensional diagram of the fourth cover body of the utility model;

[0021] Reference numerals:

[0022] 1 first chain cover; 101 first cover body; 1011 second through hole; 10111 semi-long hole; 102 second cover body; 1021 first through hole; 103 thickness portion;

[0023] 2 second chain cover; 201 third cover body; 2011 third through hole; 2012 guard plate; 2013 spacing through hole; 202 fourth cover body; 2021 fourth through hole;

[0024] 301 first limiting block; 3011 first contact portion; 3012 second contact portion; 302 first groove;

[0025] 401 first plug-in; 402 first slot;

[0026] 501 first hook; 502 first slot;

[0027] 601 second hook; 602 second slot; 603 third hook; 604 third slot. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention and thus more clearly define the scope of protection claimed in the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementations of the present invention, which are only a portion of the embodiments of the present invention. The specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not necessarily or directly limit the scope of implementation of the present invention.

[0029] Referring to the accompanying drawings, the present invention adopts the following technical solutions: a chain cover, comprising a first chain cover 1 configured on one side of the chain, and a second chain cover 2 configured on the other side of the chain, wherein the first chain cover 1 is provided with a first through-hole 1021 cooperating with the flywheel and a second through-hole 1011 cooperating with the chainring on both sides, the second chain cover 2 comprises a third cover 201 configured at the chainring and having a third through-hole 2011 cooperating with the chainring, and a fourth cover 202 configured at the flywheel and having a fourth through-hole 2021 cooperating with the flywheel, the third cover 201 and / or the fourth cover 202 being provided with at least one guard plate 2012 extending to the fourth cover 202 or the third cover 201, and the third cover 201 and the fourth cover 202 being detachably connected;

[0030] The first chain cover 1 and the second chain cover 2 are detachably connected, and a protective chamber for accommodating a flywheel, a chain, and a chainring is formed between the first chain cover 1 and the second chain cover 2. The first chain cover 1 is bent toward the second chain cover 2 to form a thickness portion 103.

[0031] Through the above technical solution, the setting of the guard plate 2012 can realize the full enclosure of the chain cover. The range of the guard plate 2012 can be adapted to the chain to fully protect the flywheel, chain and chainring of the bicycle. In addition, the chain cover of the utility model protects the chain, chainring and flywheel from being exposed to the outside, avoiding injuries caused by people's fingers or feet touching the above parts.

[0032] The first chain cover 1 includes a first cover 101 and a second cover 102 connected to the first cover 101 via a first detachable structure. The first detachable structure includes at least one first stopper 301 disposed on the first cover 101 and / or the second cover 102. The outer wall of at least one first stopper 301 contacts the inner wall of the second cover 102 or the first cover 101 during connection to limit the position. A semi-long hole 10111 is defined in both the first cover 101 and the second cover 102, and the two semi-long holes 10111 form a second through-hole 1011.

[0033] The first limiting block 301 includes a first contact portion 3011 and a second contact portion 3012 having an angle with the first contact portion 3011. The first contact portion 3011 and the second contact portion 3012 respectively contact two adjacent inner walls of the second cover body 102 or the first cover body 101, that is, they contact the inner wall of the first chain cover 1 and the inner wall of the thickness portion 103.

[0034] The second cover 102 and / or the first cover 101 are provided with a first groove 302 adapted to the first limit block 301. In this embodiment, the first groove 302 is configured on the first cover 101, and the first limit block 301 is provided on both the first cover 101 and the second cover 102.

[0035] There are two guard plates 2012, and a spacing perforation 2013 is formed between the two guard plates 2012, which can achieve ventilation and reduce the weight of the equipment.

[0036] The third cover 201 and the fourth cover 202 are connected via a second detachable structure. The second connection structure includes at least one pair of first plug-ins 401 provided on the third cover 201 and the fourth cover 202 and a first slot 402 matched with the first plug-in 401 .

[0037] The first chain cover 1 and the third cover 201 are connected via a third detachable structure, which includes at least one set of first hooks 501 provided on the first chain cover 1 and the third cover 201, and first slots 502 that cooperate with the first hooks 501. Several first hooks 501 are provided on the first cover 101 and the second cover 102, and the first slots 502 are provided on the third cover 201.

[0038] The first chain cover 1 and the fourth cover body 202 are connected via a fourth detachable structure. The fourth detachable structure includes at least one set of second hooks 601 provided on the first chain cover 1 and the fourth cover body 202 and a second slot 602 matched with the second hook 601 .

[0039] The end of the fourth cover 202 forms a third hook 603, and the inner wall of the first chain cover 1 is provided with a third slot 604 that cooperates with the third hook 603. The second hook 601 and the third slot 604 are provided on the second cover 102.

[0040] The first cover body 101 of the present invention is detachably connected to the second cover body 102, the third cover body 201 is detachably connected to the second cover body 102, the first through-hole 1021 is configured on the second cover body 102, the third cover body 201 is snap-connected to the first cover body 101 and the second cover body 102, and the fourth cover body 202 is snap-connected to the second cover body 102.

[0041] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, and the first cover body 101, the second cover body 102, the third cover body 201 and the fourth cover body 202 of the present invention are connected by a detachable structure, which can facilitate the installation and partial disassembly of the chain cover. For example, when repairing the chainring, the third cover body 201 can be removed, which is very convenient.

[0042] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A chain cover, characterized in that: The invention relates to a chain cover (1) configured on one side of a bicycle chain and a second chain cover (2) configured on the other side of the bicycle chain. The first chain cover (1) is provided with a first through hole (1021) cooperating with a flywheel and a second through hole (1011) cooperating with a toothed disc on both sides. The second chain cover (2) comprises a third cover (201) configured at the toothed disc and provided with a third through hole (2011) cooperating with the toothed disc, and a fourth cover (202) configured at the flywheel and provided with a fourth through hole (2021) cooperating with the flywheel. The third cover (201) and / or the fourth cover (202) are provided with at least one guard plate (2012) extending to the fourth cover (202) or the third cover (201). The third cover (201) and the fourth cover (202) are detachably connected. The first chain cover (1) and the second chain cover (2) are detachably connected, and a protective chamber for accommodating a flywheel, a chain, and a toothed disc is formed between the first chain cover (1) and the second chain cover (2).

2. The chain guard according to claim 1, characterized in that: The first chain cover (1) is bent toward the second chain cover (2) to form a thickness portion (103).

3. The chain cover according to claim 1 or 2, characterized in that: The first chain cover (1) comprises a first cover body (101) and a second cover body (102) connected to the first cover body (101) via a first detachable structure, wherein the first detachable structure comprises at least one first limiting block (301) configured on the first cover body (101) and / or the second cover body (102), wherein the outer wall of at least one first limiting block (301) contacts the inner wall of the second cover body (102) or the first cover body (101) to limit the position when connected.

4. The chain guard according to claim 3, characterized in that: The first limiting block (301) comprises a first contact portion (3011) and a second contact portion (3012) having an included angle with the first contact portion (3011); the first contact portion (3011) and the second contact portion (3012) respectively contact two adjacent inner walls of the second cover body (102) or the first cover body (101).

5. The chain guard according to claim 3, characterized in that: The second cover body (102) and / or the first cover body (101) is provided with a first groove (302) adapted to the first limiting block (301).

6. The chain guard according to claim 1, characterized in that: Two guard plates (2012) are provided, and a spacing through hole (2013) is formed between the two guard plates (2012).

7. The chain guard according to claim 1, wherein: The third cover body (201) and the fourth cover body (202) are connected via a second detachable structure, wherein the second connection structure comprises at least one pair of first plug-ins (401) respectively provided on the third cover body (201) and the fourth cover body (202), and a first slot (402) matched with the first plug-in (401).

8. The chain guard according to claim 1, wherein: The first chain cover (1) and the third cover body (201) are connected via a third detachable structure, and the third detachable structure comprises at least one group of first hooks (501) provided on the first chain cover (1) and the third cover body (201) and a first slot (502) matched with the first hook (501).

9. The chain guard according to claim 1, wherein: The first chain cover (1) and the fourth cover body (202) are connected via a fourth detachable structure, and the fourth detachable structure comprises at least one group of second hooks (601) provided on the first chain cover (1) and the fourth cover body (202) and a second slot (602) matched with the second hook (601).

10. The chain guard according to claim 9, characterized in that: A third hook (603) is formed at the end of the fourth cover body (202), and a third slot (604) cooperating with the third hook (603) is arranged on the inner wall of the first chain cover (1).

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