CN200942843Y - Folding multi-speed bicycle - Google Patents
Folding multi-speed bicycle Download PDFInfo
- Publication number
- CN200942843Y CN200942843Y CN 200620076349 CN200620076349U CN200942843Y CN 200942843 Y CN200942843 Y CN 200942843Y CN 200620076349 CN200620076349 CN 200620076349 CN 200620076349 U CN200620076349 U CN 200620076349U CN 200942843 Y CN200942843 Y CN 200942843Y
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- China
- Prior art keywords
- bicycle
- bench
- back vent
- fork
- bearing pin
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- 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 pertains to bicycle technologies, in particular to a folding multi-speed bicycle, which comprises a frame that is composed of an upper beam, a front pillar, a lower beam and a rear fork that from a quadrangular structure and are movable connection, wherein the front pillar is in fixed connection with the front fork; upper end of the saddle pillar is in fixed connection with the saddle; middle part of the saddle pillar is in movable connection with the upper beam and the rear fork; lower end of the saddle pillar is in movable connection with middle part of the lower beam; the rear fork consists of an upper segment of the rear fork and a lower segment of the rear fork that are in movable connection, and a folding device is provided at the joint. The folding multi-speed bicycle has a beautiful outlook, and a rational and simple structure; besides, the utility model can be conveniently and fast unfolded, and when unfolded, the folding multi-speed bicycle can be reliably locked to ensure safe and reliable riding.
Description
Technical field
The present invention relates to technical field of bicycles, especially a kind of collapsible variable speed bicycle.
Background technology
The environmental protection vehicle of bicycle for extensively liked by people, but when not needing to ride, its occupation space is bigger, the higher resident family of some floors particularly, when for safety needing,, carry upstairs comparatively inconvenience because of its volume is big with the bicycle carry it upstairs, as its folding then can saving is greatly taken up room and easy to carry, Folding Bicycle has just arisen at the historic moment.Present Folding Bicycle or have the Folding Bicycle of speed changing function general what adopt is mode with bolt, in use, when bicycle is adjusted to the running condition structure, need manually tight a bolt with fixing body frame structure for automotive, in the time need not folding, need manually to looser a bolt once more, waste time and energy, the while does not tighten because of bolt owing to meeting or causes bolt looseness because jolting in the cycling process shaken, thereby influences the safety of riding.
Summary of the invention
In order to overcome the deficiency of existing Folding Bicycle, the invention provides the collapsible variable speed bicycle that a kind of deployed condition can effectively lock.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of collapsible variable speed bicycle, has vehicle frame, be set with the car front fork in vehicle frame the place ahead, car front fork top is provided with handlebar, the below is provided with front vehicle wheel, the vehicle frame rear is provided with rear wheel, above vehicle frame, be provided with bench, the rotating shaft of rear wheel is provided with the speed change ratchet, handlebar is provided with speed-change control device, described vehicle frame is by upper beam, underbeam, front pillar and bicycle back fork are formed, described upper beam, front pillar, underbeam, bicycle back fork forms quadrilateral structure and each point of connection flexibly connects, and front pillar is captiveed joint with the car front fork; Described bench below is provided with the bench pillar stiffener, captives joint with bench in bench pillar stiffener upper end, and bench pillar stiffener middle part flexibly connects with the junction of upper beam and bicycle back fork, and the middle part of bench pillar stiffener lower end and underbeam flexibly connects; Described bicycle back fork is made up of back vent epimere and back vent hypomere, and back vent epimere and back vent hypomere flexibly connect, and are provided with folding device in the junction.
Described folding device comprises positioning panel, is connected bearing pin, is sleeved on the returning spring that connects on the bearing pin with positioning panel flexibly connects; The lower end of described back vent epimere is sleeved on and connects on the bearing pin, and is connected that bearing pin flexibly connects and can be free to slide along the connection bearing pin, and returning spring is arranged on the back vent epimere and is connected between bearing pin two point of connection; Described positioning panel one end is captiveed joint with the upper end of back vent hypomere, and the other end is provided with and the consistent position-limited trough of back vent epimere profile.
In order to make collapsible variable speed bicycle speed changing effect better, it is more steady to ride, and increases the aesthetic property of car load simultaneously, and further: described rear wheel external diameter promptly adopts front vehicle wheel little greater than the external diameter of front vehicle wheel, the wheel combination structure that rear wheel is big.
Because the bench pillar stiffener has thicker caliber, the junction of realizing bench pillar stiffener and upper beam and bicycle back fork for convenience flexibly connects, again further: the junction of described upper beam and bicycle back fork is connected with fixed sleeving, and the bench pillar stiffener is sleeved in the fixed sleeving.
For realize can the free adjustment bench height to be fit to different height crowds' requirement by bike, further: described bench pillar stiffener is made up of upper support post and lower support post, the upper support column sleeve is contained in the lower support post, is provided with the anchor fitting that is used for fixing upper support post and lower support post relative position in the junction.
Collapsible variable speed bicycle appearance looks elegant described in the utility model, simple and reasonable, folding and expanding is convenient and swift, deployed condition energy positive lock, riding safety is reliable.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of Folding Bicycle of the present utility model.
Fig. 2 is the structural representation of the utility model back vent epimere and back vent hypomere active connection place.
1. vehicle frame 1-1. upper beam 1-2. underbeam 1-3. front pillar 1-4. bicycle back fork 1-41 back vent epimere 1-42. back vent hypomeres, 2. car front forks, 3. handlebars, 4. front vehicle wheels, 5. rear wheels, 6. benches, 7. speed change ratchets, 8. speed-change control devices, 9. bench pillar stiffener 9-1. upper supports are lived 9-2. lower support post 10. folding device 10-1. positioning panel 10-2. connection bearing pin 10-3. returning spring 11. position-limited troughs 12. fixed sleevings 13. anchor fittings among the figure
The specific embodiment
A kind of collapsible variable speed bicycle as shown in Figure 1, has vehicle frame 1, be set with car front fork 2 in vehicle frame the place ahead, car front fork top is provided with handlebar 3, the below is provided with front vehicle wheel 4, vehicle frame 1 rear is provided with rear wheel 5, above vehicle frame 1, be provided with bench 6, the rotating shaft of rear wheel 5 is provided with speed change ratchet 7, handlebar 3 is provided with speed-change control device 8, described vehicle frame 1 is by upper beam 1-1, underbeam 1-2, front pillar 1-3 and bicycle back fork 1-4 form, described upper beam 1-1, front pillar 1-3, underbeam 1-2, bicycle back fork 1-4 forms quadrilateral structure and each point of connection flexibly connects, and front pillar 1-3 is captiveed joint with car front fork 2; Described bench 6 belows are provided with bench pillar stiffener 9, captive joint with bench 6 in bench pillar stiffener 9 upper ends, the junction of upper beam 1-1 and bicycle back fork 1-4 is connected with fixed sleeving 12, bench pillar stiffener 9 is sleeved in the fixed sleeving 12, the junction of bench pillar stiffener 9 middle parts and upper beam 1-1 and bicycle back fork 1-4 is flexibly connected, and the middle part of bench pillar stiffener 9 lower ends and underbeam 1-2 flexibly connects; Described bicycle back fork 1-4 is made up of back vent epimere 1-41 and back vent hypomere 1-4, and back vent epimere 1-41 and back vent hypomere 1-42 flexibly connect, and are provided with folding device 10 in the junction.As shown in Figure 2, described folding device 10 comprises positioning panel 10-1, is connected bearing pin 10-2, is sleeved on the returning spring 10-3 that connects on the bearing pin 10-2 with positioning panel 10-1 flexibly connects; The lower end of described back vent epimere 1-41 is sleeved on and connects on the bearing pin 10-2, and is connected that bearing pin 10-2 flexibly connects and can be free to slide along connection bearing pin 10-2, and returning spring 10-3 is arranged on back vent epimere 1-41 and is connected between bearing pin 10-2 two point of connection; Described positioning panel 10-1 one end is provided with and the consistent position-limited trough 11 of back vent epimere 1-41 profile with upper end captive joint, the other end of back vent hypomere 1-42, after entering position-limited trough 11, the lower end of assurance back vent epimere 1-41 can not produce relative motion again, to guarantee the stability of whole vehicle frame 1.Specifically, described positioning panel 10-1 opens the curling outer upper part that is wrapped in back vent hypomere 1-42 of steel plate one end by a block length side to captive joint with back vent hypomere 1-42, and the other end of steel plate inwardly bends to two semiclosed openings in opposite directions, promptly described position-limited trough 11.In order to make collapsible variable speed bicycle speed changing effect better, it is more steady to ride, and increases the aesthetic property of car load simultaneously, and described rear wheel 5 external diameters promptly adopt front vehicle wheel 4 little greater than the external diameter of front vehicle wheel 4, the wheel combination structure that rear wheel 5 is big.Bench pillar stiffener 9 can adopt upper support post 9-1 and lower support post 9-2 two parts to form in addition, upper support post 9-1 is sleeved in the lower support post 9-2, be provided with the anchor fitting 13 that is used for fixing upper support post 9-1 and lower support post 9-2 relative position in the junction, suit tightness by anchor fitting 13 control upper support post 9-1 suits and lower support post 9-2 junction, fixed when making upper support post 9-1 in lower support post 9-2, freely stretch to correct position, realize the free adjustment of bench 6 height, to be fit to different height crowds' the requirement of riding.
When the collapsible variable speed bicycle of original running condition is folded, grasp back vent epimere 1-41, overcome the elastic force effect of certain returning spring 10-3, it is close in opposite directions that back vent epimere 1-41 lower end edge is connected bearing pin 10-2, back vent epimere 1-41 lower end is broken away from position-limited trough 11, after back vent epimere 1-41 lower end spins off in the position-limited trough 11 fully, back vent epimere 1-41 just can freely rotate around being connected bearing pin 10-2 with back vent hypomere 1-42, back vent epimere 1-41 and back vent hypomere 1-42 are outwards bent, because upper beam 1-1, underbeam 1-2, front pillar 1-3, flexible connection is all adopted in the junction of the back vent epimere 1-41 of bicycle back fork 1-4 and back vent hypomere 1-42 and bench pillar stiffener 9, make when back vent epimere 1-41 and back vent hypomere 1-42 outwards bend, interlock drives upper beam 1-1, underbeam 1-2, front pillar 1-3 and bench pillar stiffener 9 move together, upper beam 1-1 and underbeam 1-2 are close mutually, rear wheel 5 to bench side 6 to close, so just effectively reduced the developed area of bicycle, be more convenient for depositing and carry.When need launch the bicycle of folded state, undertaken by above-mentioned course of action is reverse, lower end until back vent epimere 1-41 is pressed into position-limited trough 11 fully under the effect of returning spring 10-3 elastic force, in the process of riding, because returning spring 10-3 struts the lower end of back vent epimere 1-41 and places in the position-limited trough 11, make the position relative fixed of back vent epimere 1-41 and back vent hypomere 1-42, thereby make upper beam 1-1, underbeam 1-2, front pillar 1-3, equal holding position is fixing between the back vent epimere 1-41 of bicycle back fork 1-4 and back vent hypomere 1-42 and the bench pillar stiffener 9, guarantee stability of structure, guaranteed riding safety.
Claims (5)
1. collapsible variable speed bicycle, has vehicle frame (1), be set with car front fork (2) in vehicle frame (1) the place ahead, car front fork (2) top is provided with handlebar (3), the below is provided with front vehicle wheel (4), vehicle frame (1) rear is provided with rear wheel (5), be provided with bench (6) in vehicle frame (1) top, the rotating shaft of rear wheel (5) is provided with speed change ratchet (7), handlebar (3) is provided with speed-change control device (8), it is characterized in that: described vehicle frame (1) is by put the beams in place (1-1), underbeam (1-2), front pillar (1-3) and bicycle back fork (1-4) are formed, described upper beam (1-1), front pillar (1-3), underbeam (1-2), bicycle back fork (1-4) forms quadrilateral structure and each point of connection flexibly connects, and front pillar (1-3) is captiveed joint with car front fork (2); Described bench (6) below is provided with bench pillar stiffener (9), captive joint with bench (6) in bench pillar stiffener (9) upper end, bench pillar stiffener (9) middle part flexibly connects with the junction of upper beam (1-1) and bicycle back fork (1-4), and the middle part of bench pillar stiffener (9) lower end and underbeam (1-2) flexibly connects; Described bicycle back fork (1-4) is made up of back vent epimere (1-41) and back vent hypomere (1-42), and back vent epimere (1-41) flexibly connects with back vent hypomere (1-42), is provided with folding device (10) in the junction.
2. collapsible variable speed bicycle according to claim 1 is characterized in that: described folding device (10) comprises positioning panel (10-1), is connected bearing pin (10-2), is sleeved on the returning spring (10-3) that connects on the bearing pin with positioning panel flexibly connects; The lower end of described back vent epimere (1-41) is sleeved on and connects on the bearing pin (10-2), with be connected that bearing pin (10-2) flexibly connects and can be free to slide along connecting bearing pin (10-2), returning spring (10-3) is arranged on back vent epimere (1-41) and is connected between bearing pin (10-2) two point of connection; Described positioning panel (10-1) end is provided with and the consistent position-limited trough (11) of back vent epimere (1-41) profile with upper end captive joint, the other end of back vent hypomere (1-42).
3. collapsible variable speed bicycle according to claim 1 is characterized in that: described rear wheel (5) external diameter is greater than the external diameter of front vehicle wheel (4).
4. collapsible variable speed bicycle according to claim 1 is characterized in that: the junction of described upper beam (1-1) and bicycle back fork (1-4) is connected with fixed sleeving (12), and bench pillar stiffener (9) is sleeved in the fixed sleeving (12).
5. collapsible variable speed bicycle according to claim 1, it is characterized in that: described bench pillar stiffener (9) is made up of upper support post (9-1) and lower support post (9-2), upper support post (9-1) is sleeved in the lower support post (9-2), is provided with the anchor fitting (13) that is used for fixing upper support post (9-1) and lower support post (9-2) relative position in the junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620076349 CN200942843Y (en) | 2006-09-04 | 2006-09-04 | Folding multi-speed bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620076349 CN200942843Y (en) | 2006-09-04 | 2006-09-04 | Folding multi-speed bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200942843Y true CN200942843Y (en) | 2007-09-05 |
Family
ID=38717472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620076349 Expired - Fee Related CN200942843Y (en) | 2006-09-04 | 2006-09-04 | Folding multi-speed bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200942843Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034158A1 (en) * | 2010-09-15 | 2012-03-22 | Peter Scott Rundle | Folding diamond type frame for a bicycle |
-
2006
- 2006-09-04 CN CN 200620076349 patent/CN200942843Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034158A1 (en) * | 2010-09-15 | 2012-03-22 | Peter Scott Rundle | Folding diamond type frame for a bicycle |
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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 |