CN2343073Y - Speed increasing booster for bicycle - Google Patents
Speed increasing booster for bicycle Download PDFInfo
- Publication number
- CN2343073Y CN2343073Y CN 98220160 CN98220160U CN2343073Y CN 2343073 Y CN2343073 Y CN 2343073Y CN 98220160 CN98220160 CN 98220160 CN 98220160 U CN98220160 U CN 98220160U CN 2343073 Y CN2343073 Y CN 2343073Y
- Authority
- CN
- China
- Prior art keywords
- axle
- shell
- spring
- pedal axle
- output gear
- 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
Links
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model relates to a speed increasing booster for bicycles. A pedal axle arranged at the middle of a casing is provided with a connecting sleeve whose outer end is welded with a chain wheel. Inner end of the connecting sleeve is provided with an output gear. The pedal axle is provided with a drive gear through needle rollers. A clutch is arranged between the output gear and the drive gear. A shifting fork is arranged on a shifting fork axle of the upper part of the casing in a slide way. The upper end of the casing is provided with a shifting fork knob, and an intermediate axle of the lower part of the casing is provided with two intermediate gears which are respectively engaged with the output gear and the drive gear. The two intermediate gears are connected into a whole through a connecting disc, and are arranged on the intermediate axle through needle rollers. The utility model has the advantages of compact structure, long service life and convenient and flexible operation.
Description
The utility model belongs to the driving device technical field of bicycle.
At present, the transmission system that is used on the bicycle is mainly the sprocket-type structure, promptly realizes speed change by the conversion sprocket wheel, because this gear shift mode has destroyed the service conditions of sprocket wheel chain pair, has quickened the wearing and tearing of speed change parts, outside each parts all is exposed in addition, thereby the trouble in service height, service life is short., the patent No. improves to some extent its complex structure, productive costs height though being the bicycle speed increaser of ZL95214861.7.And above-mentioned transmission system all can't install work-saving device additional.
The purpose of this utility model provides a kind of easy to use and reliable labour-saving bicycle speedup assistor.
For achieving the above object, the utility model is by the following technical solutions: it has housing and is installed in the pedal axle at housing middle part, on the pedal axle adapter sleeve is installed, adapter sleeve stretches out the outer end of housing and is installed with chain wheel, and adapter sleeve the inner is equipped with output gear.Side in addition in enclosure interior has the driving gear that is installed on the pedal axle, and the power-transfer clutch that is installed on the pedal axle is being arranged between driving gear and output gear.On the top of housing a declutch shift shaft is installed, being slidingly installed on the axle is useful on the shift fork of stirring power-transfer clutch, in the housing upper end shift fork knob is installed.In lower part of frame a tween drive shaft is installed, two intermediate gears that are meshed with driving gear and output gear respectively are installed on this, two intermediate gears are connected as a single entity by terminal pad, and are installed on the tween drive shaft by two groups of needle rollers.
The utility model also turns and inboardly by spline the cover hub is installed being installed on right pedal on the pedal axle, by screw thread ratchet device is installed on the cover hub, by screw thread leaf spring promotion dish is installed in the ratchet device outside, be installed with spring boot in the chain wheel outside, the spring type leaf spring is housed in the spring boot, and the two ends of spring type leaf spring are separately fixed on leaf spring promotion dish and the spring boot.
Compare with existing derailleur, the utility model compact conformation, flexible and convenient to use, not easy to wear, long service life, good reliability, i.e. variable-ratio, but reinforcement again, the road surface, town and country is all applicable, thereby has improved the performance of existing bicycle.
Below in conjunction with drawings and Examples, structure of the present utility model and principle of work are further described.
Fig. 1 is a transverse sectional view of the present utility model, shows its integral structure;
Fig. 2 is the left view of Fig. 1.
In the embodiment that accompanying drawing provides, shell of the present utility model constitutes by housing 7 with by left cap 1 and right cap 20 that fastener is fixed in housing 7 both sides.On pedal axle 23, adapter sleeve 10 is installed by one group of needle roller, adapter sleeve 10 is installed on the shell right cap 20 by one group of ball 9, the end that adapter sleeve 10 stretches out shell is welded with bicycle chain wheel 16, and the inner of adapter sleeve 10 is equipped with and drives the output gear 8 that adapter sleeve 10 rotates.The in addition side of portion has by needle roller 26 and is installed in driving gear 2 on the pedal axle 23 in the enclosure, this end of pedal axle 23 is installed on the shell left cap 1 by 25 and one groups of balls of ball retaining, ball keeps off 25 outsides retaining nut 24 also is housed, and the axial location of pedal axle 23 on shell can be adjusted by retaining nut 24 and ball retaining 25.At driving gear 2 and 8 of output gears the denture clutch 3 that is installed on by spline on the pedal axle 23 is arranged, it can slidably reciprocate on axle 23, combines with two gears 2,8 respectively.A declutch shift shaft 4 is installed on the top of shell, is slidingly fitted with a shift fork 5 on the axle, two shift fork pawls of shift fork 5 bottoms place the annular groove on power-transfer clutch 3 surfaces.A shift fork knob 6 is installed in the upper end of housing 7, drives shift fork 5 by the eccentric structure on it and on axle, move.For guaranteeing the power-transfer clutch normal operation, also have registration device on the shift fork knob 6, this device is by being contained in the steel ball in the circular hole on the knob, and compression spring and trimming screw constitute.A tween drive shaft 17 is installed in the bottom of shell, two intermediate gears 19,21 that are meshed with driving gear 2 and output gear 8 respectively are installed on this, this two intermediate gear 19,21 connects as one by flathead screw and a terminal pad 18, and is installed on the tween drive shaft 17 by two groups of needle rollers.The utility model also is equipped with step-up system in chain wheel 16 outsides, this device comprises by spline and is installed in the cover hub 14 that right pedal turns 15 inboards, by screw thread existing bicycle rear general-duty ratchet device 22 is installed on the cover hub 14, by screw thread spring boot 13 is housed in ratchet device 22 outsides, spring type leaf spring 11 is housed in spring boot 13, the two ends of spring type leaf spring 11 are separately fixed on leaf spring promotion dish 12 and the spring boot 13, and make it be in the free motion state.
The utility model is installed between upright beam, cant beam and the back horizontal beam of cycle frame, should make its pedal axle 23 and chain wheel 16 still be in the position of existing bicycle pedal shaft and chain wheel after promptly above-mentioned each beam and the welding of its shell.During cruising, by shift fork knob 6 denture clutch 3 is pushed driving gear 2 one sides, pedal axle 23 drives driving gear 2 by power-transfer clutch 3 and rotates, drive output gear 8 by driving gear 2 by two intermediate gears 19,21 again, finally driving chain wheel 16 by output gear 8 by adapter sleeve 10 rotates, because the chronotropic action of each gear in transmission process, thereby make this bicycle speed of a motor vehicle be much higher than existing bicycle.When load greatly, against the wind or during up-hill journey, power-transfer clutch 3 can be allocated to output gear 8 one sides, this moment, pedal axle 23 directly drove output gear 8 rotations by power-transfer clutch 3, owing to without speed change, its speed of a motor vehicle can be identical with existing bicycle.In the bicycle running process, the rotation of pedal axle 23 can make leaf spring 11 screw, and when elastic force is increased to certain value, will react on the chain wheel 16, and promptly driving force for bicycles is not only by lever transmission, and the while is also by the elastic force transmission, thus the purpose of realization reinforcement.
Claims (2)
1, a kind of bicycle speedup assistor, have shell and the pedal axle (23) that is installed in the shell middle part, it is characterized in that: adapter sleeve (10) is installed on pedal axle (23), the end that adapter sleeve (10) stretches out shell is installed with chain wheel (16), and adapter sleeve (10) the inner is equipped with output gear (8); The side in addition of portion has the driving gear (2) that is installed on the pedal axle (23) in the enclosure, the power-transfer clutch (3) that is installed on the pedal axle (23) is arranged between driving gear (2) and output gear (8), a declutch shift shaft (4) is installed on the top of shell, be slidingly installed on the axle and be useful on the shift fork (5) of stirring power-transfer clutch (3), in the shell upper end shift fork knob (6) is installed, a tween drive shaft (17) is installed in the bottom of shell, two intermediate gears (19) (21) that are meshed with driving gear (2) and output gear (8) respectively are installed on this axle, two intermediate gears (19) (21) are connected as a single entity by terminal pad (18), and are installed on the tween drive shaft (17) by two groups of needle rollers.
2, bicycle speedup assistor according to claim 1, it is characterized in that turning that (15) are inboard to be equipped with cover hub (14) by spline being installed on right pedal on the pedal axle (23), cover hub (14) is gone up and by screw thread ratchet device (22) is installed, by screw thread leaf spring promotion dish (12) is installed in ratchet device (22) outside, be installed with spring boot (13) in chain wheel (16) outside, spring type leaf spring (11) is housed in spring boot (13), and the two ends of spring type leaf spring (11) are separately fixed on leaf spring promotion dish (12) and the spring boot (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220160 CN2343073Y (en) | 1998-01-15 | 1998-01-15 | Speed increasing booster for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220160 CN2343073Y (en) | 1998-01-15 | 1998-01-15 | Speed increasing booster for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2343073Y true CN2343073Y (en) | 1999-10-13 |
Family
ID=33972013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98220160 Expired - Fee Related CN2343073Y (en) | 1998-01-15 | 1998-01-15 | Speed increasing booster for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2343073Y (en) |
-
1998
- 1998-01-15 CN CN 98220160 patent/CN2343073Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201678014U (en) | Super-silent centrally-mounted power device for electric bicycle | |
| CN2343073Y (en) | Speed increasing booster for bicycle | |
| CN217969802U (en) | Rear bridge type power-assisted motor system structure | |
| CN2169593Y (en) | Two speed flying wheel | |
| CN201040574Y (en) | Bicycle center shaft structure | |
| CN2299012Y (en) | Lever driving gear of bicycle | |
| CN2194866Y (en) | Friction transmission speed-change and clutch device for bicycle | |
| CN2395977Y (en) | Transmission mechanism for electric car | |
| CN219172600U (en) | Electric power bicycle transmission system adopting rear hub motor | |
| CN211843961U (en) | Rear axle operating mechanism assembly | |
| CN2355971Y (en) | Reciprocating driven bicycle | |
| CN2217566Y (en) | Boosting tricycle | |
| CN2166078Y (en) | Multi-pedal bicycle driving device | |
| CN2357995Y (en) | Speed changer | |
| CN2211409Y (en) | High-speed labor-saving bicycle | |
| CN2238198Y (en) | Speed-increasing power-saving chain wheel device for bicycle or man-power tricycle | |
| CN2275994Y (en) | Wheel transmission gear | |
| CN2604367Y (en) | Two-axle bicycle | |
| CN2189587Y (en) | Bicycle driving device | |
| CN2305362Y (en) | Automatic speed changing wheel disc for bicycle | |
| CN2471692Y (en) | Speeding up energy saver for manpower tricycle on hilly path | |
| CN2410229Y (en) | Automatic variable two speed bicycle | |
| CN2545082Y (en) | Flange connected gearing mechanism for ordinary bicycle | |
| CN2359211Y (en) | Driving mechanism of electric bicycle | |
| CN2401446Y (en) | Inner speed variating wheel for bicycle |
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 |