CN2858472Y - Speed-increasing device for bicycle - Google Patents
Speed-increasing device for bicycle Download PDFInfo
- Publication number
- CN2858472Y CN2858472Y CN 200520076991 CN200520076991U CN2858472Y CN 2858472 Y CN2858472 Y CN 2858472Y CN 200520076991 CN200520076991 CN 200520076991 CN 200520076991 U CN200520076991 U CN 200520076991U CN 2858472 Y CN2858472 Y CN 2858472Y
- Authority
- CN
- China
- Prior art keywords
- bicycle
- sleeve pipe
- speed increaser
- transmission sleeve
- wheel
- 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.)
- Expired - Fee Related
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- Transmission Devices (AREA)
Abstract
The utility model relates to a bicycle accelerator including a middle axes, a driven sleeve, a chain wheel, and a planetary gear accelerating structure, characterised in that rolling needles are provided out of the chanin wheel and out of the driven sleeve at an inner side of the planetary gear accelerating structure, respectively, bearing seats are mounted on the rolling needles. The utility model has a small space between the chanin wheel and the planetary gear accelerating structure, and is convenient to be mounted.
Description
One, technical field
The utility model relates to a kind of speed increaser, relates in particular to a kind of bicycle speed increaser.
Two, technical background
The speed increaser of bicycle comprises axis, transmission sleeve pipe, connector bushing, sprocket wheel, needle bearing and planetary wheel speedup structure at present.Sprocket wheel and planet speedup structure are installed in the two ends of axis respectively, are connected suit drive sleeve pipe by needle bearing on sprocket wheel and the interstructural axis of planet speedup, are connected with connector bushing at transmission sleeve pipe external application needle bearing.Earlier transmission sleeve pipe and connector bushing are installed on the axis with needle bearing when being fixed on speed increaser on the bicycle, be fixed on the middle joint of bicycle with the screen cap again, again sprocket wheel and planetary wheel speedup structure are fixedly mounted on the two ends of axis respectively.This speed increaser is owing to being fixedly connected on speed increaser on the middle joint of bicycle with the screen cap, so increased the spacing of sprocket wheel and planetary wheel speed increasing mechanism, while speed increaser inconvenience when installing and fixing.
Three, technology contents
At above-mentioned shortcoming, the purpose of this utility model is to provide a kind of and reduces the spacing of sprocket wheel and planetary wheel speed increasing mechanism and be convenient to install and fix speed increaser.
Technology contents of the present utility model is, a kind of bicycle speed increaser, comprise axis, transmission sleeve pipe, sprocket wheel and planetary wheel speedup structure, it is characterized by outside the transmission sleeve pipe of sprocket wheel and planetary wheel speedup structure inboard to install respectively and is connected a needle bearing, and connection one bearing seat is installed on needle bearing.
The advantage that the utility model is compared with prior art had is:
1, reduced the spacing of sprocket wheel and planetary wheel speed increasing mechanism.
2, speed increaser installs and fixes conveniently.
Four, description of drawings
Be illustrated as structural scheme of mechanism of the present utility model.
Five, specific embodiment
As shown in the figure, a kind of bicycle speed increaser, comprise axis 1, transmission sleeve pipe 2, sprocket wheel 4 and planetary wheel speedup structure 8, it is characterized by outside the transmission sleeve pipe 2 of sprocket wheel 4 and planetary wheel speedup structure 8 inboards to install respectively and is connected a needle bearing 7, connection one bearing seat 5 is installed on needle bearing.
Earlier transmission sleeve pipe 2 and needle bearing 3 are installed on the axis when being fixed on speed increaser on the bicycle, use needle bearing 7 connections one bearing seat 5 more respectively at the two ends of transmission sleeve pipe 2, by bearing seat 5 axis 1 and transmission sleeve pipe 2 are installed on the middle joint 6 of bicycle, fixedly mount upper sprocket wheel 4 and planetary wheel speedup structure 8 more respectively at the two ends of transmission sleeve pipe 2, inside face at bearing seat 5 and middle joint 6 bonded assembly outside faces and middle joint 6 has screw thread respectively, speed increaser can be fixedly mounted on the bicycle by tightening diaxon bearing 5.
When axis rotated, planetary wheel speedup structure 8 drove transmission sleeve pipe 2 and rotates, and was rotated by transmission sleeve pipe 2 drive sprockets 4 again.
Claims (2)
1, a kind of bicycle speed increaser, comprise axis (1), transmission sleeve pipe (2), sprocket wheel (4) and planetary wheel speedup structure (8), it is characterized by outside the transmission sleeve pipe (2) of sprocket wheel (4) and planetary wheel speedup structure (8) inboard, to install respectively and be connected a needle bearing (7), installation connection one bearing seat (5) on needle bearing.
2, bicycle speed increaser according to claim 1, the outside face that it is characterized by at bearing seat (5) has screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520076991 CN2858472Y (en) | 2005-11-03 | 2005-11-03 | Speed-increasing device for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520076991 CN2858472Y (en) | 2005-11-03 | 2005-11-03 | Speed-increasing device for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2858472Y true CN2858472Y (en) | 2007-01-17 |
Family
ID=37611329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520076991 Expired - Fee Related CN2858472Y (en) | 2005-11-03 | 2005-11-03 | Speed-increasing device for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2858472Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101382A1 (en) * | 2007-02-16 | 2008-08-28 | Shengwen Guo | A central shaft acceleration gearing |
-
2005
- 2005-11-03 CN CN 200520076991 patent/CN2858472Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101382A1 (en) * | 2007-02-16 | 2008-08-28 | Shengwen Guo | A central shaft acceleration gearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |