CN2595648Y

CN2595648Y - Portable travelling bicycle

Info

Publication number: CN2595648Y
Application number: CN 02243493
Authority: CN
Inventors: 李风华
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-06
Filing date: 2002-08-06
Publication date: 2003-12-31
Anticipated expiration: 2012-08-06

Abstract

The utility model relates to a portable traveling bicycle. A main body of the portable traveling bicycle is provided with three brackets composed of a connection bracket, a bicycle seat bracket and a bearing bracket. The utility model is simultaneously provided with three main folding points for limiting the angle of the bicycle. After the bicycle is folded, the three brackets are coincided. A front wheel and a back wheel of the utility model are pneumatic tires with the diameter of 20 cm and the volume of the bicycle is decreased. For enhancing the speed of the bicycle, both ends of a back shaft are supported by an integral bearing and are fixed to both sides of a back fork by two bearing seats with bayonets. A minor sprocket with the specific speed of 1: 6 is arranged on the back shaft. The back wheel is driven through saw-shaped teeth and the portable traveling bicycle has the advantages of fine speed and portability.

Description

Portable touring bicycle

The utility model relates to a kind of portable touring bicycle, and especially its volume is little, in light weight, easy to store, and travelling is easy to carry by bus.

Present existing Folding Bicycle although descended the very big time on structure and weight, but still does not solve problem easy to carry.If on the basis of original bicycle transmission, dwindle car body and wheel, reach portable purpose, its speed of a motor vehicle will reduce greatly.How under the situation that guarantees the original speed of a motor vehicle of bicycle, reach purpose easy to carry.

The utility model provides a kind of portable touring bicycle and solves above problem, and not only volume is little for it, and is in light weight, easy to carry, and speed is fast.

The purpose of this utility model is achieved in that car body adopts three-point fix, and promptly car body has three main breaks, limits the angle of bicycle.Forward folding mode had both folded the position and had all folded along bearing frame.Two handlebars and direction lever are linked by arm-tie and extension spring, folded 90 ° of fold-down, and direction lever is provided with plus-minus screw, can withdraw downwards, and many ribs pin rod is housed in the centre and front fork links.Direction lever and linkage frame one end are linked by the camber clamping plate, and dowel bolt is arranged on the clamping plate, and predetermined angle is 67 °.The other end of linkage frame is linked by little axle and bearing frame, and linkage frame can be folding to the bearing frame direction.Car seat and car are sat between the connecting rod and are provided with locating piece, sit angle in order to limit car, lift locating piece car seat and fall voluntarily.Car is sat connecting rod and car use of revenue to finance expense frame has kayser, presses the adjustable car load sitting height of kayser degree.Between car use of revenue to finance expense frame and the bearing frame shock absorber is housed, opening deck shock absorber and car use of revenue to finance expense frame can be folding along the bearing frame direction.The both sides pedal is provided with break, can be to 90 ° of invagination, and left foot is pedaled and is turned an end and square spare binding, and square spare is fixed on the axis.Left foot is pedaled and is turned collapsible 180 °, when the front and back wheel diameter is 20cm, in order to improve the speed of portable bicycle, one transmission speed be housed be 1: 6 minor sprocket on its rear axle, minor sprocket one side has a shell fragment, opposite side has saw type tooth, and the saw type tooth of minor sprocket is meshing by the saw type tooth on shell fragment and the trailing wheel wheel axle sleeve.When bicycle advanced, chain drove minor sprocket, and by the moving trailing wheel running of saw type cingulum, because chain restriction minor sprocket rotates, two saw type teeth forward slide, and are disengaged position when sliding under the effect of shell fragment.The rear axle two ends are supported by two integral metals and are fixed on the rear vehicle fork both sides by bearing seat, owing to dwindled front and back wheel, its integral structure dwindles thereupon, thereby has reached the purpose of portable touring bicycle.

Because adopt such scheme, portable touring bicycle has in light weight, volume is little, safety factor height, compact conformation, portable advantage.And easy to store, particularly in the block, can be placed on after using up on indoor or the balcony, both avoided loss, purified community environment again.Its trailing wheel has adopted the minor sprocket driving, has replaced the flywheel of original bicycle, has simplified manufacturing process.

Below in conjunction with drawings and Examples utility model is further specified:

Fig. 1 is first embodiment of portable touring bicycle, the planar view after the expansion.

Fig. 2 is second embodiment of portable touring bicycle, the planar view after folding.

Fig. 3 is the I-I cutaway view of Fig. 1.

Fig. 4 is the II-II cutaway view of Fig. 1.

Among the figure: 1. handlebar; 2. brake handle; 3. direction lever; 4. plus-minus screw; 5. camber clamping plate; 6. front-wheel; 7. front fork; 8. car is sat; 9. locating piece; 10. kayser; 11. car is sat connecting rod; 12. car use of revenue to finance expense frame; 13. right pedal; 14. right pedal turns; 15. hinge wheel; 16. linkage frame; 17. left foot is pedaled; 18. pedaling, left foot turns; 19. shock absorber; 20. shock absorber deck; 21. chain; 22. bearing frame; 23. trailing wheel; 24. back brake; 25. bearing seat; 26. shell fragment; 27. minor sprocket; 28. wheel wheel axle sleeve; 29. integral metal; 30. rear axle; 31. back vent; 32. screw; 33. many ribs pin rod; 34. square key

In Fig. 1, be connected by the connecting plate extension spring between handlebar 1 and the direction lever 3, plus-minus screw 4 is arranged in order to adjust the height of direction lever on the direction lever, link by camber clamping plate 5 between direction lever and the linkage frame 16, there is the dowel bolt predetermined angle centre, one end of linkage frame 16 and bearing frame 22 are linked by little axle, car seat 8 and car are sat has locating piece 9 to limit cars seat angles between the connecting rod 11, the locating piece angle is less than 90 °, car is sat and is provided with kayser 10 between connecting rod 11 and the car use of revenue to finance expense frame 12 in order to adjust the height that car is sat, link by shock absorber 19 between car use of revenue to finance expense frame 12 and the bearing frame 22, the upper end of shock absorber 19 is fixed on the car use of revenue to finance expense frame 12, the lower end is fixed on the bearing frame 22 by deck 20, deck 20 is to be made of handle and eccentric mounting, and the axis hole of the fixed orifice of eccentric mounting and support shock absorber 19 lifts the handle on the deck 20 not on a branch line, shock absorber 19 car use of revenue to finance expense framves 12 can be folded to bearing frame 22, bicycle such as Fig. 2 after folding.

Fig. 3 is the cutaway view of portable touring bicycle trailing wheel wheel, there are two integral metals 29 at rear axle 30 two ends, be fixed on the rear vehicle fork 31 by bayonet socket by bearing seat 25, shell fragment 26 is housed on the rear axle, minor sprocket 27, wheel wheel axle sleeve 28, minor sprocket 27, between the wheel wheel axle sleeve 28 combination of saw type tooth is arranged, wheel wheel axle sleeve 28 is fixed on the rear axle by screw 32.

Fig. 4 is the cutaway view of portable touring bicycle direction lever, in the middle of the direction lever 3 pin rod of rib more than one 33 is arranged, and the upper end is passed by the polygon hole of direction lever 3, and the lower end is connected with front fork 7 by a square key 34, in order to limit the direction of direction lever 3 and front fork 7.

Claims

1, a kind of portable touring bicycle, be to constitute by front and back wheel, driving device, support frame, it is characterized in that: the rear axle two ends have two integral metals to be fixed on the back vent both sides by two bearing seats with bayonet, shell fragment is housed on the rear axle, the minor sprocket of band saw type tooth and the wheel wheel axle sleeve that energy is meshing with the sawtooth of minor sprocket, described minor sprocket and rear axle slack running fit are describedly taken turns the wheel axle sleeve and rear axle closely cooperates.

2, portable touring bicycle according to claim 1 is characterized in that: the end at shock absorber is equipped with the eccentric deck of being with handle, and its fixed orifice and support shock absorber axis hole be in-line not.

3, portable touring bicycle according to claim 1 is characterized in that: car seat and car are sat between the connecting rod a positioning block, and its angle is less than 90 ℃.

4, portable touring bicycle according to claim 1 is characterized in that: have a polygon hole to be passed by many ribs pin rod in the middle of the direction lever, many ribs pin rod lower end links by a square key and front fork.