CN204548315U - A kind of bicycle chain wheel cover of light structure - Google Patents
A kind of bicycle chain wheel cover of light structure Download PDFInfo
- Publication number
- CN204548315U CN204548315U CN201520118242.0U CN201520118242U CN204548315U CN 204548315 U CN204548315 U CN 204548315U CN 201520118242 U CN201520118242 U CN 201520118242U CN 204548315 U CN204548315 U CN 204548315U
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- China
- Prior art keywords
- cover
- oval
- shaped piece
- inner cover
- outer cover
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Abstract
The utility model relates to a kind of bicycle chain wheel cover of light structure, comprise inner cover and outer cover, outer cover comprises oval-shaped piece and tangent with the upper and lower two ends of oval-shaped piece and in an angle 2 flanks, inner cover is the tangent circular piece of upper and lower two ends and oval-shaped piece, the top of oval-shaped piece and inner cover is equipped with groove, form the rest area of chain after groove combination, flank upper end is provided with accommodation box, and the edge of outer cover bends inwards formation flanging; Oval-shaped piece is connected by movable axis with the side of inner cover, and oval-shaped piece is flexibly connected respectively by snap-in structure with the two ends up and down of inner cover.Its beneficial effect is: be easy to overhaul cycle chain, and can avoid chain releasing, light structure is brief, productive costs is low.
Description
Technical field
The utility model relates to bicycle part technical field, particularly a kind of bicycle chain wheel cover of light structure.
Background technology
Bicycle, as the vehicle of environmental protection, plays very important effect in life.Conventional bicycle mostly by manpower pedal as power; drive rear wheel by the driving gear be connected with pedal, driving wheel is connected with the driven gear of trailing wheel by chain, in order to protect chain; be provided with chain guard outside the chain of Regular Bicycle, inner side is provided with guar plate more more.Once in use there is the problem of chain-taking, due to the existence of chain guard and guar plate, not only inconvenient maintenance, and due to cycle chain and gear having a lot of lubricating oil, can cause being stained with greasy dirt on hand in maintenance process, very unhygienic.Existing chain guard and guar plate mostly are metal-enclosed type structure, not only increase the weight of bicycle, also not easy to assemble, generally need special tool just can open, bring great inconvenience to the go off daily of people.
Utility model content
The utility model be intended to propose a kind of rational in infrastructure, be easy to the light structure that cycle chain overhauls bicycle chain wheel cover.
The technical solution of the utility model is achieved in that
A bicycle chain wheel cover for light structure, comprises inner cover and outer cover,
Outer cover comprises oval-shaped piece and tangent with the upper and lower two ends of oval-shaped piece and in an angle 2 flanks, inner cover is the tangent circular piece of upper and lower two ends and oval-shaped piece, the top of oval-shaped piece and inner cover is equipped with groove, the rest area of chain is formed after groove combination, flank upper end is provided with accommodation box, and the edge of outer cover bends inwards formation flanging;
Oval-shaped piece is connected by movable axis with the side of inner cover, and oval-shaped piece is flexibly connected respectively by snap-in structure with the two ends up and down of inner cover.
Preferably, snap-in structure comprises draw-in groove and engaging member, and draw-in groove is arranged on inner cover, and engaging member is arranged on the flanging of outer cover.
Preferably, flywheel disassembling instrument is provided with in accommodation box.
Preferably, inner cover and outer cover are senior engineering plastic inner cover and senior engineering plastic outer cover.
Preferably, the oval-shaped piece of outer cover and flank one-body molded.
Compared with prior art, there is following advantage in the bicycle chain wheel cover of the light structure that the utility model proposes:
1, the top of inner cover and outer cover is equipped with groove, forms chain rest area after groove combination, and chain rest area limits the mal vibratory impulse of chain to a certain extent, improves the stability of chain gear, avoids chain releasing;
2, inner cover is flexibly connected with outer cover, can open inner cover flexibly, save trouble, save time, laborsaving when needing repairing by snap-in structure;
3, chain wheel cover is provided with accommodation box, some basic service toolies can be placed in case of need;
4, the utility model light structure, brief, processing raw MAT'L is few, cost is low.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the bicycle chain wheel cover of the light structure that the utility model proposes;
Fig. 2 is the inner cover of Fig. 1 and the top cross-sectional view of outer cover.
In figure: 1, outer cover; 11, oval-shaped piece; 12, flank; 2, inner cover; 21, draw-in groove; 3, engaging member; 4, movable axis; 5, accommodation box; 6, chain; 7, groove; 8, sprocket wheel.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1 and Fig. 2 jointly shown in: a kind of bicycle chain wheel cover of light structure, comprises inner cover 2 and outer cover 1,
Outer cover 1 comprises oval-shaped piece 11 and tangent with oval-shaped piece about 11 two ends and in an angle 2 flanks 12, inner cover 2 is the tangent circular piece of upper and lower two ends and oval-shaped piece 11, oval-shaped piece 11 is equipped with groove 7 with the top of inner cover 2, groove 7 combines the rest area of rear formation chain 6, flank 2 upper end is provided with accommodation box 5, and the edge of outer cover 1 bends inwards formation flanging;
Oval-shaped piece 11 is connected by movable axis 4 with the side of inner cover 2, and oval-shaped piece 11 is flexibly connected respectively by snap-in structure with the two ends up and down of inner cover 2.
Compared with prior art, there is following advantage in the utility model:
1, inner cover 2 is equipped with groove 7 with the top of outer cover 1, groove 7 combines the rest area (chain 6 is engaged on the gear teeth of sprocket wheel 8) of rear formation chain 6, rest area limits the mal vibratory impulse of chain to a certain extent, improves the stability of chain gear, avoids chain releasing;
2, inner cover 2 is flexibly connected with outer cover 1, can open inner cover 2 flexibly, save trouble, saves time, laborsaving when needing repairing by snap-in structure;
3, the inside bending in the edge of outer cover 1 forms flanging, carries out omnibearing protection to chain; Chain wheel cover is provided with accommodation box 5, some basic service toolies can be placed in case of need;
4, the utility model light structure, brief, processing raw MAT'L is few, cost is low.
As the preferred technical scheme of one, an embodiment more of the present utility model, snap-in structure comprises draw-in groove 21 and engaging member 3, and draw-in groove 21 is arranged on inner cover 2, and engaging member 3 is arranged on the flanging of outer cover 1.
During maintenance, can open engaging member 3, inner cover 2 separates naturally with outer cover 1.Because inner cover 2 and outer cover 1 one end are provided with movable axis 4, even if inner cover 2 and outer cover 1 are still partly connected separately, inner cover 2 can not be caused to lose or damage.
As the preferred technical scheme of one, an embodiment more of the present utility model, is provided with flywheel disassembling instrument in accommodation box 3.
As the preferred technical scheme of one, an embodiment more of the present utility model, inner cover 2 and outer cover 1 are senior engineering plastic inner cover and senior engineering plastic outer cover.Inner cover 2 and outer cover 1 preferably material are senior engineering plastic, significantly reduce the weight of bicycle, improve the gait of march of bicycle while alleviating chain wheel cover weight.
As the preferred technical scheme of one, an embodiment more of the present utility model, the oval-shaped piece 11 of outer cover 1 is one-body molded with flank 12.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a bicycle chain wheel cover for light structure, is characterized in that: comprise inner cover (2) and outer cover (1),
Described outer cover (1) comprises oval-shaped piece (11) and tangent with the upper and lower two ends of described oval-shaped piece (11) and in an angle 2 flanks (12), described inner cover (2) is upper and lower two ends and the tangent circular piece of described oval-shaped piece (11), described oval-shaped piece (11) is equipped with groove (7) with the top of described inner cover (2), the rest area of chain (6) is formed after described groove (7) combination, described flank (2) upper end is provided with accommodation box (5), and the edge of described outer cover (1) bends inwards formation flanging;
Described oval-shaped piece (11) is connected by movable axis (4) with the side of described inner cover (2), and described oval-shaped piece (11) is flexibly connected respectively by snap-in structure with the two ends up and down of described inner cover (2).
2. the bicycle chain wheel cover of light structure according to claim 1, it is characterized in that: described snap-in structure comprises draw-in groove (21) and engaging member (3), described draw-in groove (21) is arranged on described inner cover (2), and described engaging member (3) is arranged on the flanging of described outer cover (1).
3. the bicycle chain wheel cover of light structure according to claim 1, is characterized in that: described accommodation box is provided with flywheel disassembling instrument in (3).
4. the bicycle chain wheel cover of light structure according to claim 1, is characterized in that: described inner cover (2) and described outer cover (1) are senior engineering plastic inner cover and senior engineering plastic outer cover.
5. the bicycle chain wheel cover of the light structure according to any one of claim 1-4, is characterized in that: the oval-shaped piece (11) of described outer cover (1) is one-body molded with described flank (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118242.0U CN204548315U (en) | 2015-02-28 | 2015-02-28 | A kind of bicycle chain wheel cover of light structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118242.0U CN204548315U (en) | 2015-02-28 | 2015-02-28 | A kind of bicycle chain wheel cover of light structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204548315U true CN204548315U (en) | 2015-08-12 |
Family
ID=53823459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520118242.0U Expired - Fee Related CN204548315U (en) | 2015-02-28 | 2015-02-28 | A kind of bicycle chain wheel cover of light structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204548315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019233167A1 (en) * | 2018-06-03 | 2019-12-12 | Huang Yuebo | Chain cover |
-
2015
- 2015-02-28 CN CN201520118242.0U patent/CN204548315U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019233167A1 (en) * | 2018-06-03 | 2019-12-12 | Huang Yuebo | Chain cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20180228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |