CN2209640Y - Foldable bicycle - Google Patents

Abstract

The utility model relates to a folding light-duty bicycle which is mainly composed of a bicycle handle 1, a front fork 9, a bicycle frame, bicycle wheels and a bicycle saddle, wherein, the front wheel 10 is a small wheel, and the rear wheel 17 is a large wheel. The bicycle handle 1 can be folded forwards by 90 DEG, and a front frame 5 can be folded by 180 DEG to the left and the right directions around a middle vertical lever 12. The front fork 9 is folded by 90 DEG to the front upper direction around a fork shoulder 7, the front end of a rear saddle frame 16 is provided with a saddle pipe 18, and the rear end of the rear saddle frame 16 is provided with a rear root 19 with a horse race slot. The front fork, the front frame and the rear tripod of the whole bicycle can be folded. The volume of the utility model is small after the utility model is folded. The utility model is convenient for going up and down on floors and convenient to park in home.

Description

Foldable bicycle

The utility model belongs to the light-duty folding bicycle of a kind of spy.

Existing bicycle volume is big, quality big, it is inconvenient downstairs to go up, and being in to park occupies, and the inconvenience of going out is carried, and too high being not easy to of vehicle seat walked in crowded crowd.

The purpose of this utility model is that a kind of spy will be provided light-duty folding bicycle, and it can natural reduced volume in folding process.

The purpose of this utility model is achieved in that front-wheel is a steamboat, and trailing wheel is a bull wheel.The back jacket casing of side arm on the perpendicular thick stick, has forcing screw on the tube behind the side arm in the Vee formation frame, unclamp forcing screw, during side arm can be scratched perpendicular shoulder right-hand left rotation nearly 180 ° with the Vee formation frame by disturbing; Preceding fork shaft lower end jacket casing is on the front fork shoulder, and fork shaft lower end tube screw before unclamping can make front fork rotate 90 ° to the front upper place, and is parallel to the ground; The handlebar sleeve unclamps upper end tube screw in very heavy axle upper end tube, the handlebar handle can to the front lower place rotate 180 ° with front-wheel by disturbing.

The utility model is because divide three joints folding, so structure is simple especially.Can dwindle the volume of bicycle after folding effectively.

Accompanying drawing (1) is the utility model constructional drawing

Below in conjunction with details and the service condition of figure (1) detailed description according to the concrete structure that the utility model proposes.

This car is made of handlebar 1, front fork 9, side arm 5, Vee formation frame 14, front-wheel 10, trailing wheel 17 and seat 16.

Handlebar handle 1.Be enclosed within the upper end card tube 2 of handlebar axis 3, on the long tube 2 in upper end forcing screw 4 arranged.Unclamp forcing screw 4, handlebar handle 1 can to the front lower place rotate 90 ° with front-wheel 10 by disturbing.

On the perpendicular thick stick 12, the back tube of side arm 5 has open card screw 13 to the back jacket casing of side arm 5 in Vee formation frame 14, and there is forcing screw 11 lower end, unclamps screw 13,11, side arm 5 can to the left back nearly rotate 180 ° with Vee formation frame 14 by disturbing.

There is fork shoulder 7 upper end of front fork 9, in the open card of fork shaft 6 lower ends, forcing screw 8 is arranged on the open card before fork shoulder 7 is enclosed within, and unclamps forcing screw 8, front fork 9 can to the front upper place rotate 90 ° parallel to the ground.

16 is seat, and there is back 19 of band race groove at the rear portion, and front end has vehicle seat axle 18, and sofa seat 15 is installed on the mounting 16.The horse race groove of back root 19 cooperates the height that can regulate mounting 16 with seat axle 18.

The utility model is simple in structure, and materials are saved, folding convenient, and moving velocity is fast, is the flat desirable walking-replacing tool of traveling around taking general charge of an entire area at the grass-roots level.

Claims (6)

1, the light-duty folding bicycle of a kind of spy, this car be by handlebar 1, side arm 5, and Vee formation frame 14, front-wheel 6, trailing wheel 17 and vehicle seat position 16 constitute, and it is characterized in that front fork, side arm, Vee formation frame divide three joints folding.

2, bicycle according to claim 1 is characterized in that its handlebar handle 1 is enclosed within the upper end open card 2 of handlebar axis 3, and forcing screw 4 can be controlled the position of handlebar handle 1 and handlebar axis 3.

3, device according to claim 1, the back jacket casing that it is characterized in that side arm 5 on the perpendicular thick stick 12, there is open card 13 tube upper end, side arm 5 back, there is forcing screw 11 lower end.

4, device according to claim 1 is characterized in that the fork shoulder 7 of front fork 9 upper ends is enclosed within the open card of preceding fork shaft 6 lower ends, and forcing screw 8 is arranged on the open card.

5, bicycle according to claim 1 is characterized in that the front end of mounting 16 has the pipe of seat 18, and there is back 19 of band horse race groove the rear end, and sofa seat 15 is arranged above.

6, bicycle according to claim 1, front-wheel 6 is a steamboat, trailing wheel 17 is a bull wheel.

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