CN213735330U - Mounting mechanism of bicycle chain cover - Google Patents
Mounting mechanism of bicycle chain cover Download PDFInfo
- Publication number
- CN213735330U CN213735330U CN202021574073.9U CN202021574073U CN213735330U CN 213735330 U CN213735330 U CN 213735330U CN 202021574073 U CN202021574073 U CN 202021574073U CN 213735330 U CN213735330 U CN 213735330U
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- Prior art keywords
- extension
- section
- arc
- chain cover
- side wall
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- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- 238000005452 bending Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 7
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to an installation mechanism of a bicycle chain cover, which comprises a gear assembly (3) and a chain cover body (1), wherein the chain cover body (1) is used for covering part of the gear assembly (3), and the chain cover body (1) comprises a top wall (11); the chain guard body (1) further comprises a front side wall (12) connected with the front edge (111a) of the top wall (11), a space between the front side wall (12) and the top wall (11) is used for accommodating a gear assembly (13), and the outer edge (3a) of the gear assembly (13) is positioned behind the front side wall (12). By providing a front side wall, the outer edge of the gear assembly is located behind the front side wall, so that the front side wall covers the outer edge of the gear assembly, having the effect of protecting the front side portion of the gear assembly.
Description
Technical Field
The utility model relates to a bicycle technical field, concretely relates to installation mechanism of bicycle chain cover.
Background
Bicycles generally include a frame, a gear assembly provided on the frame, a chain guard for protecting the gear assembly, and the like. The gear assembly mainly comprises a gear and a chain arranged on the gear.
For example, chinese utility model application No. CN200920116582.4 (publication No. CN201390321Y) discloses "a narrow and long bicycle chain cover", which comprises a narrow and long cover plate having an inner folded edge, the front end of the cover plate is bent into a semi-circular arc shape, and the arc transition of the cover plate has a triangular protruding piece protruding outward in an arc shape. The chain cover has the advantages of simple structure, easy production, low cost, convenient installation, beauty and practicability.
However, the chain cover can only protect the gear assembly from the circumference, and cannot protect the front side portion of the gear assembly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's current situation, provide an installation mechanism of bicycle chain cover that can protect the front portion of gear assembly.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a mounting mechanism for a bicycle chain guard comprises
A gear assembly; and
a chain cage body for covering a portion of the gear assembly, the chain cage body including a top wall;
the method is characterized in that:
the chain guard body also includes a front side wall connected to the front edge of the top wall, the space between the front side wall and the top wall for receiving a gear assembly, the outer edge of the gear assembly being located behind the front side wall.
The structure of the top wall may be various, and preferably, the top wall includes a first extension extending in a transverse direction and a first arc-shaped section connected at a top thereof to the first extension, the first arc-shaped section being bent toward one side of the first extension.
The configuration of the front side wall may be various, and preferably, the front side wall includes
A second extension extending transversely, the second extension being connected to the front edge of the first extension of the top wall; and
the top of the second arc-shaped section is connected with the second extension section, the second arc-shaped section bends towards one side of the second extension section, the outer edge of the second arc-shaped section is connected with the front edge of the first arc-shaped section of the top wall, and the bending directions of the second arc-shaped section and the first arc-shaped section are consistent;
the outer edge of the gear assembly is located behind the second arcuate segment.
The chain guard body may have a variety of configurations, and preferably, the chain guard body further includes a rear side wall connected to a rear edge of the top wall, the rear side wall having a first mounting hole for mounting the chain guard body to the frame.
The structure of the rear side wall may be various, and preferably, the rear side wall includes
The third arc-shaped section is connected with the rear edge of the first arc-shaped section, the bending directions of the third arc-shaped section and the first arc-shaped section are consistent, and the front side wall is connected with the front edge of the top wall; and
the third extension section extends transversely, the third extension section is connected with the top of the third arc-shaped section, the third extension section and the second extension section are oppositely arranged, the top edge of the third extension section is connected with the rear edge of the first extension section, and the height of the third extension section is less than or equal to that of the second extension section;
the space between the top wall, the front side wall and the rear side wall is for receiving a gear assembly, a portion of the outer edge of which is located between the third arcuate segment and the second arcuate segment.
For the chain cover line to be smooth, the widths of the first extension section and the first arc-shaped section are equal, the widths of the second extension section and the second arc-shaped section are equal, and the widths of the third extension section and the third arc-shaped section are equal. Therefore, the lines of the chain cover are smooth, and the chain cover looks beautiful and stiff.
The inner edge of the second arcuate segment is closer to the middle of the gear assembly than the inner edge of the third arcuate segment for aesthetic reasons. Thus, the third arc-shaped section can not be seen from the front side, and the chain cover is simple and attractive.
In order to enable the chain cover to be suitable for frames with different sizes, the front side wall comprises a second extension section extending transversely, a protruding block is arranged on the back of the second extension section or the bottom of the first extension section, and a through hole is formed in the protruding block;
the mounting mechanism of the bicycle chain cover further comprises a chain cover taking and paying device which is connected with the chain cover body in a sliding mode, and the chain cover taking and paying device is inserted into the through hole in a sliding mode.
Therefore, the chain cover is taken and paid close to or far away from the chain cover body, so that the transverse size of the chain cover can be changed, and the bicycle can also adapt to bicycles with different sizes.
As an improvement, the height of the bump is less than or equal to the height of the second extension section;
and the chain cover is taken and paid and is included the first section of taking and paying and the second section of taking and paying that link to each other, and this first section of taking and paying extends and slip and insert in this through-hole along the length direction of chain cover body, and this second section of taking and paying downwardly extending links to each other with the front edge of first section of taking and paying, and this second section of taking and paying has the second mounting hole that is used for installing the second section of taking and paying on the frame.
The height of the lug is less than or equal to that of the second extension section, so that the lug is not easy to see from the front side, and the appearance is attractive;
or/and the first taking and paying section and the second taking and paying section are arranged, so that a user can conveniently act on the second taking and paying section to move the whole chain cover to take and pay.
The function of the gear assembly may be varied, preferably the gear assembly comprises
A gear; and
the protecting cover sets up with the gear is coaxial, and the outward flange size of this protecting cover is greater than the external diameter of gear just is less than the inner wall size of roof, and the protecting cover is located between preceding lateral wall and the gear.
Compared with the prior art, the utility model has the advantages that: by providing a front side wall, the outer edge of the gear assembly is located behind the front side wall, so that the front side wall covers the outer edge of the gear assembly, having the effect of protecting the front side portion of the gear assembly.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic view of FIG. 1 with the gear assembly installed;
FIG. 3 is a schematic view from another angle of FIG. 1;
FIG. 4 is a schematic view from another angle of FIG. 2;
FIG. 5 is a schematic view of FIG. 1 from yet another angle;
FIG. 6 is a schematic view of FIG. 2 from yet another angle;
FIG. 7 is a schematic view of FIG. 1 from yet another angle;
FIG. 8 is a schematic view of FIG. 2 from yet another angle;
FIG. 9 is an exploded view of FIG. 2;
fig. 10 is a schematic perspective view of a gear assembly according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 10, a preferred embodiment of the mounting mechanism of the bicycle chain cover of the present invention is shown.
The mounting mechanism of the bicycle chain cover comprises a gear assembly 3, a chain cover body 1 and a chain cover taking-up and paying-off device 2.
Wherein, the chain cover body 1 is used for covering part of the gear wheel assembly 3, and the chain cover body 1 comprises a top wall 11, a front side wall 12 and a rear side wall 13.
The top wall 11 includes a first extension 111 extending in a transverse direction, and a first arc-shaped section 112 connected to the first extension 111 at the top, and the first arc-shaped section 112 is bent toward one side of the first extension 111. The front side wall 12 is connected to the front edge 111a of the top wall 11, the space between the front side wall 12 and the top wall 11 being for accommodating a gear assembly 13, the outer edge 3a of the gear assembly 13 being located behind the front side wall 12.
The front side wall 12 includes a second extension 121 and a second arcuate section 122. A second extension 121 extends transversely, which second extension 121 is connected to the front edge 111a of the first extension 111 of the top wall 11. The back of the second extension segment 121 has a bump 1b, and the through hole is located on the bump 1 b; in other embodiments, the protrusion 1b may also be disposed at the bottom of the first extension section 111. The height of the projection 1b is less than that of the second extension 121; in other embodiments, the height of the bump 1b may be equal to the height of the second extension 121. The second arc-shaped section 122 is connected to the second extension section 121 at the top, the second arc-shaped section 122 is bent toward one side of the second extension section 121, the outer edge of the second arc-shaped section 122 is connected to the front edge 111a of the first arc-shaped section 112 of the top wall 11, and the bending directions of the second arc-shaped section 122 and the first arc-shaped section 112 are consistent. The inner edge of the second arcuate segment 122 is closer to the middle of the gear assembly 6 than the inner edge of the third arcuate segment 132, so that the third arcuate segment 132 is not visible from the front side, and is aesthetically pleasing and compact.
The rear side wall 13 is connected to the rear edge 111b of the top wall 11, and the rear side wall 13 has a first mounting hole 133 for mounting the chain cover body 1 to the vehicle frame. The rear sidewall 13 includes a third arcuate segment 132 and a third extension 131. The third curved section 132 is connected to the rear edge 111b of the first curved section 112, the third curved section 132 is curved in the same direction as the first curved section 112, and the front side wall 12 is connected to the front edge 111a of the top wall 11. A third extension 131 extends transversely, the third extension 131 is connected to the top of a third arc-shaped segment 132, the third extension 131 is arranged opposite to the second extension 121 and the top edge 131a thereof is connected to the rear edge 111b of the first extension 111, and the height of the third extension 131 is smaller than that of the second extension 121. In other embodiments, it is also possible that the height of the third extension 131 is equal to the height of the second extension 121. The space between the top wall 11, the front side wall 12 and the rear side wall 13 is used to accommodate the gear assembly 3, part of the outer edge 3a of the gear assembly 3 being located between the third arc-shaped section 132 and the second arc-shaped section 122. In addition, the first extension 111 and the first arc-shaped segment 112 have the same width, the second extension 121 and the second arc-shaped segment 122 have the same width, and the third extension 131 and the third arc-shaped segment 132 have the same width. Therefore, the lines of the chain cover are smooth, and the chain cover looks beautiful and stiff.
In order to adapt the chain cover to the vehicle frames with different sizes, the chain cover taking and paying device 2 is connected with the chain cover body 1 in a sliding mode, and the chain cover taking and paying device 2 is inserted into the through hole in a sliding mode. The chain cover taking and paying device 2 comprises a first taking and paying section 21 and a second taking and paying section 22 which are connected, the first taking and paying section 21 extends along the length direction of the chain cover body 1 and is inserted in the through hole in a sliding mode, the second taking and paying section 22 extends downwards and is connected with the front edge 211 of the first taking and paying section 21, and the second taking and paying section 22 is provided with a second mounting hole 221 used for mounting the second taking and paying section 22 on the frame.
Referring to fig. 10, the gear assembly 3 comprises a gear 31, a protective cover 32 and a chain (not shown) arranged on the gear 31, the protective cover 32 is arranged coaxially with the gear 31, the outer edge of the protective cover 32 is larger than the outer diameter of the gear 31 and smaller than the inner wall of the top wall 11, and the protective cover 32 is located between the front side wall 12 and the gear 31.
The mounting structure of the bicycle chain cover has the following working principle and using process.
When the size of the chain cover needs to be adjusted, the third arc-shaped section 132 of the rear side wall 13 is fixed on the frame through the first mounting hole 133, the chain cover take-up and pay-off 2 is transversely slid to a proper position, and then the chain cover take-up and pay-off 2 is mounted on the corresponding position of the frame through the fastener passing through the second mounting hole 221.
By arranging the front side wall 12 and the protective cover 32 between the front side wall 12 and the gear 31, the size of the protective cover 32 is larger than the outer diameter of the gear 31, which is beneficial for the protective cover 32 and the chain cover body 1 to protect a chain (not shown in the figure), especially the front part of the chain; in addition, the chain is not easy to see when the chain is seen from the front side, so that the appearance is attractive.
Claims (10)
1. A mounting mechanism for a bicycle chain guard comprises
A gear assembly (3); and
a chain cage body (1) for covering a part of the gear assembly (3), the chain cage body (1) comprising a top wall (11);
the method is characterized in that:
the chain guard body (1) further comprises a front side wall (12) connected with the front edge (111a) of the top wall (11), a space between the front side wall (12) and the top wall (11) is used for accommodating a gear assembly (3), and the outer edge (3a) of the gear assembly (3) is positioned behind the front side wall (12).
2. The mounting mechanism for a bicycle chain cover as set forth in claim 1, wherein: the top wall (11) comprises a first extension (111) extending transversely and a first arc-shaped section (112) connected to the first extension (111) at the top, and the first arc-shaped section (112) is bent toward one side of the first extension (111).
3. The mounting mechanism for a bicycle chain cover as set forth in claim 2, wherein: the front side wall (12) comprises
A second extension (121), the second extension (121) extending transversely, the second extension (121) being connected to the front edge (111a) of the first extension (111) of the top wall (11); and
a second arc-shaped section (122) with the top connected with the second extension section (121), wherein the second arc-shaped section (122) bends towards one side of the second extension section (121), the outer edge of the second arc-shaped section (122) is connected with the front edge (111a) of the first arc-shaped section (112) of the top wall (11), and the bending directions of the second arc-shaped section (122) and the first arc-shaped section (112) are consistent;
the outer edge (3a) of the gear assembly (3) is located behind the second arcuate section (122).
4. The mounting mechanism for a bicycle chain cover as set forth in claim 3, wherein: the chain cover body (1) further comprises a rear side wall (13) connected with the rear edge (111b) of the top wall (11), and the rear side wall (13) is provided with a first mounting hole (133) for mounting the chain cover body (1) to a vehicle frame.
5. The mounting mechanism for a bicycle chain cover as set forth in claim 4, wherein: the rear side wall (13) comprises
A third arc-shaped segment (132) connected to the rear edge (111b) of the first arc-shaped segment (112), the third arc-shaped segment (132) and the first arc-shaped segment (112) being bent in the same direction, the front side wall (12) being connected to the front edge (111a) of the top wall (11); and
a third extension (131), the third extension (131) extending transversely, the third extension (131) being connected to the top of a third arc-shaped segment (132), the third extension (131) being disposed opposite the second extension (121) and having a top edge (131a) connected to the rear edge (111b) of the first extension (111), the third extension (131) having a height less than or equal to the height of the second extension (121);
the space between the top wall (11), the front side wall (12) and the rear side wall (13) is used for accommodating a gear assembly (3), and part of the outer edge (3a) of the gear assembly (3) is positioned between the third arc-shaped section (132) and the second arc-shaped section (122).
6. The mounting mechanism for a bicycle chain cover as set forth in claim 5, wherein: the first extension section (111) and the first arc-shaped section (112) are equal in width, the second extension section (121) and the second arc-shaped section (122) are equal in width, and the third extension section (131) and the third arc-shaped section (132) are equal in width.
7. The mounting mechanism for a bicycle chain cover as set forth in claim 5, wherein: the inner edge of the second arcuate segment (122) is closer to the middle of the gear assembly (6) than the inner edge of the third arcuate segment (132).
8. The mounting mechanism for a bicycle chain cover as set forth in claim 3, wherein: the front side wall (12) comprises a second extension section (121) extending transversely, a bump (1b) is arranged at the back of the second extension section (121) or at the bottom of the first extension section (111), and a through hole is formed in the bump (1 b);
the mounting mechanism of the bicycle chain cover further comprises a chain cover taking and paying device (2) which is connected with the chain cover body (1) in a sliding mode, and the chain cover taking and paying device (2) is inserted into the through hole in a sliding mode.
9. The mounting mechanism for a bicycle chain cover as set forth in claim 8, wherein: the height of the bump (1b) is less than or equal to the height of the second extension (121);
or/and the chain cover taking and paying (2) comprises a first taking and paying section (21) and a second taking and paying section (22) which are connected, the first taking and paying section (21) extends along the length direction of the chain cover body (1) and is inserted into the through hole in a sliding mode, the second taking and paying section (22) extends downwards and is connected with the front edge (211) of the first taking and paying section (21), and the second taking and paying section (22) is provided with a second mounting hole (221) used for mounting the second taking and paying section (22) on the frame.
10. The mounting mechanism for a bicycle chain cover as claimed in any one of claims 1 to 9, wherein: the gear assembly (3) comprises
A gear (31); and
the protecting cover (32) is coaxially arranged with the gear (31), the size of the outer edge of the protecting cover (32) is larger than the size of the outer diameter of the gear (31) and smaller than the size of the inner wall of the top wall (11), and the protecting cover (32) is located between the front side wall (12) and the gear (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021574073.9U CN213735330U (en) | 2020-07-31 | 2020-07-31 | Mounting mechanism of bicycle chain cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021574073.9U CN213735330U (en) | 2020-07-31 | 2020-07-31 | Mounting mechanism of bicycle chain cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213735330U true CN213735330U (en) | 2021-07-20 |
Family
ID=76839206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021574073.9U Expired - Fee Related CN213735330U (en) | 2020-07-31 | 2020-07-31 | Mounting mechanism of bicycle chain cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213735330U (en) |
-
2020
- 2020-07-31 CN CN202021574073.9U patent/CN213735330U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210720 |