CN208248413U - A kind of positive and negative drive multi-speed bicycle - Google Patents
A kind of positive and negative drive multi-speed bicycle Download PDFInfo
- Publication number
- CN208248413U CN208248413U CN201721100326.7U CN201721100326U CN208248413U CN 208248413 U CN208248413 U CN 208248413U CN 201721100326 U CN201721100326 U CN 201721100326U CN 208248413 U CN208248413 U CN 208248413U
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- China
- Prior art keywords
- drive shaft
- gear
- ratchet
- axle
- axis
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- Expired - Fee Related
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Abstract
The utility model is providing one kind just, it is anti-to drive multi-speed bicycle, including vehicle frame, in the middle part of vehicle frame and tail portion is respectively equipped with drive shaft and hind axle, drive shaft both ends are connected with crank and pedal, hind axle is equipped with flywheel, it is characterized in that drive shaft with just, anti-driven gear is connected, it is described just, anti-driven gear includes the driving gear in drive shaft, the driving gear is and front gear, middle gear is meshed, front gear, middle gear is separately fixed at front axle, axis one end, the front axle other end is equipped with the preceding ratchet with one-way clutch, the axis other end is equipped with the middle ratchet with one-way clutch, before, middle ratchet intermeshing, middle ratchet is also meshed with backgear, backgear is fixed on rear axle one end, the rear axle other end is fixed with sprocket wheel, the sprocket wheel is connected by chain with flywheel, and it is preceding unidirectional The number of teeth of gear is greater than the number of teeth of middle ratchet.Front or rear pedal can ride forward, solve the problems, such as only to pedal forward and bring legs and feet tired.
Description
Technical field
The utility model relates to a kind of bicycles, especially a kind of just to drive the multi-speed bicycle that counter can also drive, and belong to
Bicycle designs manufacturing technology field.
Background technique
With the continuous promotion of people's environmental consciousness and health perception, more and more people start to select again bicycle as
The walking-replacing tool of daily trip and the tool of body-building.Whether mountainous region or road cycling, are largely fitted with speed change
External member, it can be changed the speed of bicycle by the chain connection between changing different size of forward and backward fluted disc, be made
Bicycle can adapt to different landform.Speed change kit used at present is mostly 30 fast structures, for ordinary people, these speed
Degree proportion is only furnished mostly, is seldom used, and this kind of speed changer structure is complicated, and reliability is not high, is often gone out when in use
The case where now hanging not cochain.In addition, high-grade speed change kit price is extremely expensive, general population is difficult to bear.In addition, existing
Multi-speed bicycle be positive and drive bicycle, cannot achieve it is anti-driven, this to ride for a long time, at a distance be it is unfavorable,
It is easy to increase the fatigue strength of bicyclist.It is therefore desirable to be improved the prior art.
Summary of the invention
Traveling can only be just driven to solve existing multi-speed bicycle, anti-driven cannot be travelled, and be easy to keep bicyclist tired, together
When speed change structure is complicated, reliability is poor, and speed proportion is excessive, and the problems such as ordinary people is rarely employed, the utility model mentions
Can just drive for one kind counter can also drive and speed change is reliable, structure is simple, the multi-speed bicycle of application.
The utility model is completed by following technical proposal: a kind of positive and negative drive multi-speed bicycle, including vehicle frame, in vehicle frame
Portion and tail portion are respectively equipped with drive shaft and hind axle, and drive shaft both ends are connected with crank and pedal, and hind axle is equipped with flywheel,
It is characterized in that drive shaft is connected with positive and negative driving gear, the positive and negative driving gear includes being set in drive shaft
Driving gear, which is meshed with front gear, middle gear, and front gear, middle gear are separately fixed at front axle, axis
One end, the front axle other end are equipped with the preceding ratchet with one-way clutch, and the axis other end is equipped with the middle list with one-way clutch
To gear, preceding, middle ratchet intermeshing, middle ratchet is also meshed with backgear, and backgear is fixed on rear axle one end,
The rear axle other end is fixed with sprocket wheel, which is connected by chain with flywheel, and the number of teeth of preceding ratchet be greater than in unidirectional tooth
The number of teeth of wheel.When just being driven so as to drive shaft, middle ratchet is inverted by driving gear, middle gear, axis and is worked, band
Dynamic backgear, rear axle, sprocket wheel, chain, flywheel rotate forward, and realization is ridden at a slow speed, and front gear, front axle reversion at this time, preceding unidirectional tooth
Wheel is only rotated forward therewith under clutch effect but is not worked；Simultaneously when drive shaft is anti-driven by driving gear, front gear,
Ratchet is rotated forward and is worked before front axle makes, and ratchet reversion drives backgear, rear axle, sprocket wheel, chain, flywheel again in drive
It rotates forward, realization is quickly ridden, and middle gear, axis rotate forward at this time, and middle ratchet is only to slide under clutch effect
Reversion.
The drive shaft, front axle, axis, the both ends of rear axle are fixed on a mounting board by corresponding bearing respectively, with
Facilitate the rotation of each axis.
The front axle, axis, rear axle height be below drive shaft, and front axle is located at drive shaft front lower place, axis is located at
Drive shaft lower section, rear axle are located at the drive shaft back lower place, keep positive and negative driving gear more compact.
The utility model has following advantages and effect: using the above scheme, it is convenient to be driven forwards by foot pedal
When, middle ratchet is inverted through driving gear, middle gear, axis and is worked, and is driven backgear, rear axle, sprocket wheel, chain, is flown
Wheel rotates forward, and realization is ridden at a slow speed, and front gear, front axle reversion at this time, preceding ratchet under clutch effect only therewith just
Turn but does not work；When can back-drive simultaneously by foot pedal again, make preceding ratchet just through driving gear, front gear, front axle
Turning and works, ratchet reversion drives backgear, rear axle, sprocket wheel, chain, flywheel to rotate forward again in drive, and realization is quickly ridden,
And middle gear, axis rotate forward at this time, and middle ratchet is only sliding reversion under clutch effect.No matter bicyclist to
Preceding or foot pedal of kicking backward can ride forward easily, freely, and the problem for avoiding only pedaling and bringing legs and feet fatigue forward is led to
Alternating movement forward, backward is crossed, while completing to ride, legs and feet muscle is tempered, achievees the purpose that body-building.This is practical
Novel interest of not only riding is strong, but also reliability, safety are higher, of simple structure and low cost.Actually one it is ideal just,
It is anti-to drive multi-speed bicycle.
Detailed description of the invention
Fig. 1 is the utility model local main view structure figure；
Fig. 2 is the top view of Fig. 1.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Positive and negative drive multi-speed bicycle provided by the utility model, including vehicle frame 18,18 middle part of vehicle frame and tail portion are respectively equipped with
Drive shaft 2 and hind axle 15,2 both ends of drive shaft are connected with crank 1 and pedal, and hind axle 15 is equipped with flywheel 16, in which: drive
Moving axis 2 is equipped with driving gear 3, which is meshed with front gear 5, middle gear 8, and front gear 5, middle gear 8 are distinguished
It is fixed on front axle 4,7 one end of axis, 4 other end of front axle is equipped with the preceding ratchet 6 with one-way clutch, and 7 other end of axis is set
Have a middle ratchet 9 with one-way clutch, preceding, middle ratchet 6,9 is intermeshed, middle ratchet 9 also with backgear 11
Be meshed, backgear 11 is fixed on 10 one end of rear axle, and 10 other end of rear axle is fixed with sprocket wheel 12, the sprocket wheel 12 by chain 14 with
Flywheel 16 is connected, and the number of teeth of preceding ratchet 6 is greater than the number of teeth of middle ratchet 9.
The drive shaft 2, front axle 4, axis 7, rear axle 10 both ends be fixed on respectively by bearing corresponding with each axis
On mounting plate 17, to facilitate the rotation of each axis.
The front axle 4, axis 7, rear axle 10 height be below drive shaft 2, specifically: it is front lower that front axle 4 is located at drive shaft 2
Side, axis 7 are located at 2 lower section of drive shaft, rear axle 10 is located at 2 back lower place of drive shaft, keep positive and negative driving gear more compact.
When riding, when making drive shaft 2 rotate (positive driving) forward by crank 1 and pedal, through driving gear 3, middle tooth
When wheel 8, axis 7 make middle ratchet 9 invert and work, backgear 11, rear axle 10, sprocket wheel 12, chain 14, flywheel 16 are being driven just
Turn, realization is ridden at a slow speed, and front gear 5, front axle 4 invert at this time, preceding ratchet 6 under the effect of its clutch only therewith just
Turn but does not work.
When riding, when by crank 1 and pedal make drive shaft 2 rotate backward (anti-driven) when, by driving gear 3, preceding
After ratchet 6 is rotated forward and worked before gear 5, front axle 4 make, ratchet 9 inverts, drives backgear 11, rear axle again in drive
10, sprocket wheel 12, chain 14, flywheel 16 rotate forward, and realization is quickly ridden, and middle gear 8, axis 7 rotate forward at this time, and middle ratchet
9 are only sliding reversion under the effect of its clutch and transmit power.
Claims (2)
1. a kind of positive and negative drive multi-speed bicycle, including vehicle frame, vehicle frame middle part and tail portion are respectively equipped with drive shaft and hind axle, drive
End shaft is connected with crank and pedal, and hind axle is equipped with flywheel, it is characterised in that drive shaft and positive and negative driving variable-speed motor
Structure is connected, and the positive and negative driving gear includes the driving gear in the drive shaft, the driving gear with front gear,
Middle gear is meshed, and front gear, middle gear are separately fixed at front axle, axis one end, and the front axle other end is equipped with band one-way clutch
Preceding ratchet, the axis other end is equipped with the middle ratchet with one-way clutch, the intermeshing of preceding, middle ratchet, in
Ratchet is also meshed with backgear, and backgear is fixed on rear axle one end, and the rear axle other end is fixed with sprocket wheel, which passes through
Chain is connected with flywheel, and the number of teeth of preceding ratchet is greater than the number of teeth of middle ratchet；
The drive shaft, front axle, axis, the both ends of rear axle are fixed on a mounting board by corresponding bearing respectively；
The front axle, axis, rear axle height be below drive shaft.
2. positive and negative drive multi-speed bicycle according to claim 1, it is characterised in that it is front lower that the front axle is located at drive shaft
Side, axis are located at below drive shaft, rear axle is located at the drive shaft back lower place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100326.7U CN208248413U (en) | 2017-08-30 | 2017-08-30 | A kind of positive and negative drive multi-speed bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100326.7U CN208248413U (en) | 2017-08-30 | 2017-08-30 | A kind of positive and negative drive multi-speed bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208248413U true CN208248413U (en) | 2018-12-18 |
Family
ID=64618832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721100326.7U Expired - Fee Related CN208248413U (en) | 2017-08-30 | 2017-08-30 | A kind of positive and negative drive multi-speed bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208248413U (en) |
-
2017
- 2017-08-30 CN CN201721100326.7U patent/CN208248413U/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 |
Granted publication date: 20181218 Termination date: 20190830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |