CN2250874Y - Bottom bracket bearing mechanism capable of measuring pedal force - Google Patents
Bottom bracket bearing mechanism capable of measuring pedal force Download PDFInfo
- Publication number
- CN2250874Y CN2250874Y CN 96200182 CN96200182U CN2250874Y CN 2250874 Y CN2250874 Y CN 2250874Y CN 96200182 CN96200182 CN 96200182 CN 96200182 U CN96200182 U CN 96200182U CN 2250874 Y CN2250874 Y CN 2250874Y
- Authority
- CN
- China
- Prior art keywords
- eccentric sleeve
- fork
- bottom bracket
- antifriction
- sleeve
- 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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Abstract
The utility model belongs to the technical field of the structure design of a bicycle with an auxiliary engine. The centre shaft structure of the utility model comprises a centre shaft, a rolling bearing, a centre shaft sleeve, a pair of end covers, an eccentric sleeve and a swing rod which is fixedly connected with the eccentric sleeve, and the rolling bearing is composed of a set of big rolling bearings and a set of small rolling bearings, wherein, one set of small rolling bearings are arranged on both ends between the centre shaft and the eccentric sleeve, and the other set of big rolling bearings are arranged on both ends of the eccentric sleeve and the centre shaft sleeve. A pair of end covers are pressed and covered on both ends of the centre shaft sleeve. The utility model has the advantages of simple structure and sensitive response.
Description
The utility model belongs to electromotive power assisted bicycle structure-design technique field, the particularly improvement of the middle axle construction of electromotive power assisted bicycle.
Electromotive power assisted bicycle is the hand-held design vehicle of a kind of manpower driving and driven by power and usefulness, onrelevant between general electromotive power assisted bicycle manpower driving and the driven by power, for example electromotive power assisted bicycle of the various electric wheel hubs drivings of present home-trade.Advanced electromotive power assisted bicycle be the size of manpower propulsive effort is regulated electrical motor as control signal size of current as a kind of compensation of manually driven, not only alleviate the effect of manpower but also power saving, and can make bicycle keep certain moving velocity to reach.
The purpose of this utility model is to design a kind of middle axis mechanism of later-model electromotive power assisted bicycle, replace original axis, make it easy to measure the size of the power that scrunches that the bicyclist scrunches stretcher and change, and with the control signal of these data, reach laborsaving, convenient, control effects such as simple as the electric current of regulating electrical motor.
The utility model has designed a kind of middle axis mechanism of measuring foot-operated power, comprise axis, antifriction-bearing box, bottom bracket axle and a pair of end cap, it is characterized in that also comprising eccentric sleeve and the fork that is connected mutually with this eccentric sleeve, said antifriction-bearing box is made up of big or small two groups of antifriction-bearing boxs, wherein one group of little antifriction-bearing box places the two ends between said axis and the eccentric sleeve, another group large-diameter roller bearing places the two ends between said eccentric sleeve and the bottom bracket axle, and said a pair of end cap gland is in said bottom bracket axle two ends.The said fork of the utility model can be that an end is the fork of garden ring, and the garden ring can be placed in a termination of eccentric sleeve and be fixedly linked with a key piece and eccentric sleeve.The other end of fork also can connect a stage clip, the size of control fork pivot angle.
Adopt above-mentioned in axis mechanism, after pedal is stressed, pedal and chain tension act on eccentric bushing by axis with withing joint efforts, eccentric bushing will produce minor rotation owing to eccentric action, make fork outer end generation displacement, being in proportion of this displacement and pedal power.Therefore can measure the displacement of swing link end part by displacement pickup, and change electric signal into and output to control circuit and realize control the motor of electromotive power assisted bicycle.
The utility model is simple and reasonable, is quick on the draw, and result of use is good, has very strong practicality.
Description of drawings:
Fig. 1 is a kind of example structure assembling cut-away view of the present utility model.
Fig. 2 is a present embodiment major part structural representation.
The utility model provides a kind of axis mechanism for implementing example of measuring the electromotive power assisted bicycle of pedal power.As shown in Figure 1, 2, be described in detail as follows in conjunction with the accompanying drawings:
Fig. 1 is axis mechanism structure assembling cut-away view, wherein two little antifriction-bearing boxs 2 are installed at the two ends of electromotive power assisted bicycle axis 1, the outer shroud of this two antifriction-bearing box is installed in the eccentric sleeve 3, two large-diameter roller bearings 4 are installed at the eccentric sleeve two ends, the outer shroud of these two large-diameter roller bearings is installed in the axis sleeve 5, left and right end cap 6 is installed in axis sleeve two ends with screw thread respectively, plays axial location.Fig. 2 is a present embodiment major part structural representation.It is Figure 1A-A cut-away view, outwards is respectively axis 1 from the figure center, little antifriction-bearing box 2, eccentric sleeve 3 and fork 7, (large-diameter roller bearing and axis sleeve are not shown).Wherein the garden of fork 7 one ends ring links by key piece 8 and eccentric sleeve, the swing of eccentric sleeve can be spread out of, and a stage clip 9 is installed in the outer end of fork, the size of may command fork pivot angle.
Claims (3)
1, a kind of middle axis mechanism of measuring foot-operated power, comprise axis, antifriction-bearing box, bottom bracket axle and a pair of end cap, it is characterized in that also comprising eccentric sleeve and the fork that is connected mutually with this eccentric sleeve, said antifriction-bearing box is made up of big or small two groups of antifriction-bearing boxs, wherein one group of little antifriction-bearing box places the two ends between said axis and the eccentric sleeve, another group large-diameter roller bearing places the two ends between said eccentric sleeve and the bottom bracket axle, and said a pair of end cap gland is in said bottom bracket axle two ends.
2, middle axis mechanism as claimed in claim 1 is characterized in that said fork can be that an end is the fork of garden ring, and the garden ring can be placed in a termination of eccentric sleeve and be fixedly linked with a key piece and eccentric sleeve.
3, middle axis mechanism as claimed in claim 1 or 2 is characterized in that the other end of said fork also can connect a stage clip,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96200182 CN2250874Y (en) | 1996-01-05 | 1996-01-05 | Bottom bracket bearing mechanism capable of measuring pedal force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96200182 CN2250874Y (en) | 1996-01-05 | 1996-01-05 | Bottom bracket bearing mechanism capable of measuring pedal force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2250874Y true CN2250874Y (en) | 1997-04-02 |
Family
ID=33886836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96200182 Expired - Fee Related CN2250874Y (en) | 1996-01-05 | 1996-01-05 | Bottom bracket bearing mechanism capable of measuring pedal force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2250874Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673313A (en) * | 2011-06-20 | 2012-09-19 | 苏一清 | Double-shaft linked integrated centre shaft for bicycle |
-
1996
- 1996-01-05 CN CN 96200182 patent/CN2250874Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673313A (en) * | 2011-06-20 | 2012-09-19 | 苏一清 | Double-shaft linked integrated centre shaft for bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: QINGHUA UNIVERSITY TO: YANGZHOU YIAN ELECTRIC CAR LTD. |
|
| CP03 | Change of name, title or address |
Address after: 225200 Xindu Road, Jiangdu New District, Jiangsu Patentee after: Yi'an Electric Cycle Co., Ltd., Yangzhou Address before: Tsinghua Yuan, Haidian District, Beijing Patentee before: Tsinghua University |
|
| 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 |