CN201009990Y - Portable folding bicycle - Google Patents
Portable folding bicycle Download PDFInfo
- Publication number
- CN201009990Y CN201009990Y CNU2007200005759U CN200720000575U CN201009990Y CN 201009990 Y CN201009990 Y CN 201009990Y CN U2007200005759 U CNU2007200005759 U CN U2007200005759U CN 200720000575 U CN200720000575 U CN 200720000575U CN 201009990 Y CN201009990 Y CN 201009990Y
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- CN
- China
- Prior art keywords
- folding bicycle
- changeover mechanism
- portable folding
- wheel
- utility
- 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.)
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Abstract
The utility model relates to a portable foldable bicycle, which comprises a handle bar and a handle bar main shaft, a chassis, wheels and a saddle; the utility model also comprises a switching mechanism; the cross beam of the chassis comprises three segments of cross beams in series; the front segment of the cross beam is hinged with the central segment of the cross beam through the switching mechanism; the central segment of the cross beam is rotarily connected with the rear segment of the cross beam in vertical direction; the central segment of the cross beam and the saddle brace beam appear in arc chape, which corresponds with external outline of the wheels; the bottom of the saddle brace beam is hinged with the chassis through the switching mechanism; a wheel driving mechanism is composed of two-stage chain wheel driving mechanisms. The utility model has the advantages of simple structure, light weight, smaller volume after being folded, being strong and reliable, and convenient handling and storage.
Description
Technical field
The utility model relates to bicycle, particularly a kind of portable folding bicycle.
Background technology
Existing bicycle is the vehicle that people use always, rides conveniently, but because of its volume is bigger, in some occasion, as rides in a bus, and inconvenience is carried in the trip of driving, and how restrictedly uses.Raising and Tourism development along with people's living standard, portable folding bicycle becomes the new lover of people's life, the folding bicycle frame of market is two folded structures now, after the vehicle body doubling, be exposed at outside the wheel and also have a segment length, folding is incomplete, the folded state volume is small and exquisite inadequately, weight is big, collection, and it is convenient inadequately to carry.
The utility model content
The purpose of this utility model just is: a kind of portable folding bicycle is provided, and advantage is simple in structure, and is in light weight, and volume is littler behind the bicycle folding, firm reliable, easy to carry and store.
For solving the problems of the technologies described above, technical scheme provided by the utility model is:
A kind of portable folding bicycle, comprise handlebar and handlebar main shaft, vehicle frame, wheel, vehicle seat, also comprise changeover mechanism, the crossbeam of vehicle frame is composed in series by three sections crossbeams, articulate by changeover mechanism between leading portion crossbeam and the breast beam, be rotationally connected at vertical direction between breast beam and the back segment crossbeam; Breast beam and vehicle seat support beam all are circular arc, conform to the wheel outline; Vehicle seat support beam bottom articulates by changeover mechanism with vehicle frame, and the transmission device of wheel is the double stage chain wheel transmission device.
Described changeover mechanism comprises two chovr bodies compositions, connects by rotating shaft on one side between two chovr bodies, and another side fastens by terraced steps, and the upper and lower limit of two chovr bodies snaps together.
Also be provided with rotating damping spring on the described breast beam, the other end of damping spring is butted on the changeover mechanism of vehicle seat support beam bottom.
Described transmission device comprises drive sprocket, driving chain wheel and driven sprocket, and drive sprocket axle position and crank connecting link, power axle are fixed in the rotating shaft between breast beam and the back segment crossbeam, and driven sprocket is installed on the rear axle.
Described handlebar main shaft middle part forms the joint that can bend 180 ° downwards, overcoat fixed muffle.
According to the technical scheme that the utility model provides, it has following advantage with respect to prior art:
The crossbeam of vehicle frame is composed in series by three sections crossbeams, articulate by changeover mechanism between leading portion crossbeam and the breast beam, be rotationally connected at vertical direction between breast beam and the back segment crossbeam, compare with folding bicycle in the past, during folded state, the partial-length that vehicle frame partly stretches out wheel reduces, and the folding volume is littler.Breast beam and vehicle seat support beam all are circular arc, conform to the wheel outline, and breast beam and vehicle seat support beam are coiled on the wheel when folding, reach perfect folding state, make the volume after the folding reach minimum, easy to carry and store, and the intensity of car is constant, and is firm reliable.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the utility model running condition reference diagram;
Fig. 2 is one of jackknife action reference diagram of the present utility model;
Fig. 3 is two of a jackknife action reference diagram of the present utility model;
Fig. 4 is a folded state reference diagram of the present utility model;
Fig. 5 is the changeover mechanism open mode scheme drawing in the utility model;
Fig. 6 is the changeover mechanism snap action scheme drawing in the utility model;
Fig. 7 is the changeover mechanism buckling state scheme drawing in the utility model.
The specific embodiment
A kind of portable folding bicycle, as shown in Figure 1, structure comprises handlebar 1, vehicle frame 2, wheel 3, vehicle seat 4, structure also comprises changeover mechanism 5, the crossbeam 21 of vehicle frame is composed in series by three sections crossbeams, articulate 5 by changeover mechanism between leading portion crossbeam 211 and the breast beam 212, be rotationally connected at vertical direction between breast beam 212 and the back segment crossbeam 213; Breast beam 212 and vehicle seat support beam 41 all are circular arc, conform to wheel 3 outlines; Vehicle seat support beam 41 bottoms and vehicle frame 2 articulate by changeover mechanism 5.The transmission device of wheel is the double stage chain wheel transmission device, transmission device comprises drive sprocket, driving chain wheel and driven sprocket, drive sprocket axle position and crank connecting link, power axle are fixed in the rotating shaft between breast beam and the back segment crossbeam, and driven sprocket is installed on the rear axle.
As Fig. 5, Figure 6 and Figure 7, changeover mechanism 5 comprises two chovr bodies, 51 compositions, connects by rotating shaft on one side between two chovr bodies 51, and another side fastens by terraced steps, and the upper and lower limit of two chovr bodies snaps together, as shown in Figure 6 and Figure 7.Handlebar main shaft middle part forms the joint (not shown) that can bend 180 ° downwards, overcoat fixed muffle 11, as shown in Figure 2.Also be provided with rotating damping spring 6 on the breast beam, the other end of damping spring 6 is butted on the changeover mechanism of vehicle seat support beam bottom.
Other parts of bicycle and ordinary bicycle are general.The vehicle frame overall structure links through hinge with multi-section circular arc, and the replaceable combination of each section is adjusted to the plurality of specifications vehicle, and its jackknife action can be with reference to as Fig. 2, Fig. 3 and shown in Figure 4.Folding back totally only be the two-wheeled volume and 130/100, can conveniently take to be contained on other vehicle and go on a long journey.Changeover mechanism stressed can the four sides in conjunction with self-locking, damping spring adjustable-length and spring pressure, vibration damping axle double as S. A. and fixing chain idler.Foldable handlebar is concisely reliable.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, therefore, all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (5)
1. portable folding bicycle, comprise handlebar and handlebar main shaft, vehicle frame, wheel, vehicle seat, it is characterized in that: also comprise changeover mechanism, the crossbeam of vehicle frame is composed in series by three sections crossbeams, articulate by changeover mechanism between leading portion crossbeam and the breast beam, be rotationally connected at vertical direction between breast beam and the back segment crossbeam; Breast beam and vehicle seat support beam all are circular arc, conform to the wheel outline; Vehicle seat support beam bottom articulates by changeover mechanism with vehicle frame, and the transmission device of wheel is the double stage chain wheel transmission device.
2. a kind of portable folding bicycle as claimed in claim 1, it is characterized in that: described changeover mechanism comprises two chovr bodies compositions, connect by rotating shaft on one side between two chovr bodies, another side fastens by terraced steps, and the upper and lower limit of two chovr bodies snaps together.
3. a kind of portable folding bicycle as claimed in claim 1 is characterized in that: also be provided with rotating damping spring on the described breast beam, the other end of damping spring is butted on the changeover mechanism of vehicle seat support beam bottom.
4. a kind of portable folding bicycle as claimed in claim 1, it is characterized in that: described transmission device comprises drive sprocket, driving chain wheel and driven sprocket, drive sprocket axle position and crank connecting link, power axle is fixed in the rotating shaft between breast beam and the back segment crossbeam, and driven sprocket is installed on the rear axle.
5. portable folding bicycle as claimed in claim 1 is characterized in that: described handlebar main shaft middle part forms the joint that can bend 180 ° downwards, overcoat fixed muffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200005759U CN201009990Y (en) | 2007-01-15 | 2007-01-15 | Portable folding bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200005759U CN201009990Y (en) | 2007-01-15 | 2007-01-15 | Portable folding bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201009990Y true CN201009990Y (en) | 2008-01-23 |
Family
ID=39044927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200005759U Expired - Fee Related CN201009990Y (en) | 2007-01-15 | 2007-01-15 | Portable folding bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201009990Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010027997A1 (en) * | 2009-09-09 | 2011-03-10 | Volkswagen Ag | Two-wheeled vehicle, use of the two-wheeled vehicle and motor vehicle |
-
2007
- 2007-01-15 CN CNU2007200005759U patent/CN201009990Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010027997A1 (en) * | 2009-09-09 | 2011-03-10 | Volkswagen Ag | Two-wheeled vehicle, use of the two-wheeled vehicle and motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20110115 |