CN102937135A - Bicycle center shaft - Google Patents
Bicycle center shaft Download PDFInfo
- Publication number
- CN102937135A CN102937135A CN2012105049602A CN201210504960A CN102937135A CN 102937135 A CN102937135 A CN 102937135A CN 2012105049602 A CN2012105049602 A CN 2012105049602A CN 201210504960 A CN201210504960 A CN 201210504960A CN 102937135 A CN102937135 A CN 102937135A
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- CN
- China
- Prior art keywords
- shaft
- center shaft
- bicycle center
- tenon
- jump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Motorcycle And Bicycle Frame (AREA)
Abstract
The invention relates to a bicycle center shaft. The bicycle center shaft comprises a shaft body, a shaft platform, a bead frame in matched connection with a bearing inner ring, a clamp spring groove, square tenons, internal threads and bolt holes, wherein the bead frame has a bright and clean cambered surface and is positioned between the shaft platform and the clamp spring groove; the bolt holes are formed in the square tenons; the internal threads are formed on the inner walls of the bolt holes; the shaft platform, the bead frame, the clamp spring groove and the square tenons are arranged on a shaft body; and the square tenons are arranged at two ends of the shaft body. The bicycle center shaft has the advantages of convenience for assembly and use, high concentricity, high sensitivity, long service life and the like.
Description
Technical field
The present invention relates to a kind of bicycle assembly parts, be specifically related to a kind of bicycle middle shaft.
Background technique
Bicycle middle shaft is one of most important component of bicycle, and the person is trampled the foot-operated moment of torsion that produces and is delivered to flywheel by axis, and it is the most important that the quality of axis directly has influence on the concentricity requirement of the quality of bicycle car load, particularly axis.Bicycle middle shaft generally is to adopt steel ball and axle bowl to connect at present, and concentricity is low in rolling, poor sensitivity, and working life is short.
Summary of the invention
Goal of the invention: the objective of the invention is provides the bicycle middle shaft of the high long service life of a kind of concentricity for overcoming not enough place of the prior art.
Technological scheme: a kind of bicycle middle shaft, comprise axle body, pillow block, be used for the pearl frame, jump-ring slot, square tenon, internal thread and the bolt hole that connect with bearing inner race, described pearl frame is bright and clean cambered surface, the pearl chord position is between pillow block and jump-ring slot, tenon inside, side is provided with bolt hole, the bolt hole inwall is internal thread, and axle body is provided with pillow block, pearl frame, jump-ring slot, square tenon, and square tenon is located at the axle body two ends.
Beneficial effect: bicycle middle shaft of the present invention has that assembling is easy to use, concentricity is high, sensitivity good and the advantage such as long service life.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention is described further below in conjunction with accompanying drawing:
A kind of bicycle middle shaft, comprise axle body 1, pillow block 2, be used for the pearl frame 3, jump-ring slot 4, square tenon 5, internal thread 6 and the bolt hole 7 that connect with bearing inner race, described pearl frame 3 is bright and clean cambered surface, pearl frame 3 is between pillow block 2 and jump-ring slot 4, tenon 5 inside, side are provided with bolt hole 7, and bolt hole 7 inwalls are internal thread 6.Axle body 1 is provided with pillow block 2, pearl frame 3, jump-ring slot 4, square tenon 5, and square tenon 5 is located at axle body 1 two ends.
Claims (1)
1. bicycle middle shaft, it is characterized in that: comprise axle body (1), pillow block (2), be used for the pearl frame (3) that connects with bearing inner race, jump-ring slot (4), side's tenon (5), internal thread (6) and bolt hole (7), described pearl frame (3) is bright and clean cambered surface, pearl frame (3) is positioned between pillow block (2) and the jump-ring slot (4), tenon (5) inside, side is provided with bolt hole (7), bolt hole (7) inwall is internal thread (6), axle body (1) is provided with pillow block (2), pearl frame (3), jump-ring slot (4), side's tenon (5), square tenon (5) is located at axle body (1) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105049602A CN102937135A (en) | 2012-11-27 | 2012-11-27 | Bicycle center shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105049602A CN102937135A (en) | 2012-11-27 | 2012-11-27 | Bicycle center shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102937135A true CN102937135A (en) | 2013-02-20 |
Family
ID=47696049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105049602A Pending CN102937135A (en) | 2012-11-27 | 2012-11-27 | Bicycle center shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102937135A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201231842Y (en) * | 2008-04-29 | 2009-05-06 | 孙桂发 | Chain wheel axle for bicycle |
-
2012
- 2012-11-27 CN CN2012105049602A patent/CN102937135A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201231842Y (en) * | 2008-04-29 | 2009-05-06 | 孙桂发 | Chain wheel axle for bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130220 |