CN201800842U

CN201800842U - Folding bicycle with telescopic cross beam

Info

Publication number: CN201800842U
Application number: CN2010205498449U
Authority: CN
Inventors: 华瑞栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-30
Filing date: 2010-09-30
Publication date: 2011-04-20
Anticipated expiration: 2020-09-30

Abstract

The utility model relates to a folding bicycle with a telescopic cross beam, and relating to the field of a bicycle, in particular to a folding type bicycle which is characterized in that a folding frame of the bicycle is provided with a telescopic cross beam structure; the structure comprises more than two sections of inner and outer sleeves and a locking mechanism; the inner and outer sleeves are mutually sheathed; the telescopic cross beam is extended and is locked to reach the required center distance dimension between the front and rear wheels of the ordinary bicycle so as to be suitable for being ridden when the folding bicycle is unfolded; and when the bicycle is folded, the telescopic cross beam is shortened, thus the folding bicycle has smaller overall dimension and is convenient in carrying.

Description

A kind of folding bicycle with flexible crossbeam

Affiliated technical field

The utility model relates to bicycle field, particularly Folding Bicycle.

Background technology

Existing Folding Bicycle adopts vehicle frame folding, handle vertical pipe is folding, seatpillar is flexible reaches bicycle folding to less size purpose, but because the bicycle wheels width between centers generally has nearly about 1 meter, can be comparatively suitable during rider, therefore when vehicle frame folding overlaps front and back wheel, often just have bigger fore-and-aft direction contour dimension, carry inconvenience.

Summary of the invention

In order to dwindle the fore-and-aft direction contour dimension after Folding Bicycle folds, the utility model has designed a kind of Folding Bicycle with flexible crossbeam, elongation crossbeam when it launches, can reach the required front and back wheel width between centers of Regular Bicycle size, shrink crossbeam when folding, can have less fore-and-aft direction contour dimension again.

The technical scheme that its technical matters that solves the utility model adopts is: a kind of folding bicycle with flexible crossbeam, comprise front-wheel, front brake, folding vertical tube, chain gear combination, trailing wheel, back brake, Foldable frame, saddle composition, Foldable frame is provided with flexible beam structure, and this structure is formed by being no less than the two mutual fits of joint and telescopic outer tube, inner sleeve and catch gear; Also has the latch structure of forming by latch and pin-and-hole on the flexible beam structure; And can be provided with a plurality of pin-and-holes; Catch gear is made up of eccentric handle and bearing pin; The outer tube and the inner sleeve of fit can be designed to pipe mutually, also can be designed to the flat pipe, and the large-size of flat pipe is arranged in vertical direction; Flexible beam structure is arranged horizontally, and also can be designed to be in tilted layout to the trailing wheel below; Outer tube is arranged in by saddle one side, and inner sleeve is arranged in the forward side that takes turns.

The beneficial effects of the utility model are: when folding bicycle launches, can reach the required front and back wheel width between centers of normal bicycle size by extending flexible crossbeam, suit by bike, when folding, can have less fore-and-aft direction contour dimension again by shortening flexible crossbeam, be easy to carry.

The beneficial effects of the utility model are: when folding bicycle launched, left and right sides pedal can conveniently insert in the stomidium of left and right sides crank, and was lived by stopper structure stopper, and is promptly rideable; When bicycle folding, pedal combination is extracted in crank hole, turn 180 ° and insert from the crank hole another side and stopper is lived, the combination of two pedals places in the inner space behind the bicycle folding about making, reduced pedal and taken the space of folding bicycle left and right sides Width, be easy to carry.

Description of drawings

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

Fig. 1 is that expression the utility model is positioned at the H-H that folding bicycle launches subjective figure and analyses and observe the position.

Fig. 2 is first kind of version of the utility model shown in H-H analyses and observe.

Fig. 3 is the version that adopts non-round backing pin among Fig. 2 in the stopper structure.

Fig. 4 is second kind of version of the utility model shown in H-H analyses and observe.

Fig. 5 is the third version of the utility model shown in H-H analyses and observe.

Fig. 6 is the 4th kind of version of the utility model shown in H-H analyses and observe.

Fig. 7 is that two pedals insert the scheme drawing of placing behind the bicycle folding from the crank hole opposite side.

1. pedals combination among the figure, 2. crank, 3. pedal axle, 4. non-circular axle head, 5. non-circular hole, 6. circular axle head, 7. circular hole, 8. backing pin, 9. aperture, 10. spring, 11. base plates, 12. bolt ends, 13. nuts, 14. screw A, 15. screw A, 16. hole A, 17. screw B, 18. screw B, 19. hole B, 20. non-round backing pins, 21. special-shaped apertures.

The specific embodiment

A kind of pedal of folding bicycle is connected with crank, is made up of pedal combination (1), crank (2), pedal axle (3), and an end of pedal axle (3) inserts in the hole of crank (2) one ends with free-running fit, and is provided with the backset structure.One end of interconnective pedal axle (3) is designed to non-circular axle head (4), and the hole of corresponding crank (2) one ends is designed to non-circular hole (5); Also can be designed to circular axle head (6) and circular hole (7).

Embodiment 1: an end of pedal axle (3) is non-circular axle head (4), the hole of one end of crank (2) is non-circular hole (5), outside axle head (4) stretches out hole (5), dispose pipe (19) in backing pin (8), the little and flat, and the large-size of flat pipe is arranged in vertical direction (Fig. 6).

Flexible beam structure (9) can horizontal arrangement (Fig. 1), also can be in tilted layout (Fig. 7) to trailing wheel (5) below, can make folding rear cradling (8) reduce to lower height like this.

Therefore, having the folding bicycle of flexible crossbeam, the front and back wheel width between centers can reach normal bicycle required size upon deployment, when folding, can have less front and back contour dimension again, is easy to carry.

Claims

1. folding bicycle with flexible crossbeam, comprise front-wheel (1), front brake (2), folding vertical tube (3), chain gear combination (4), trailing wheel (5), back brake (6), Foldable frame (7), saddle (8) composition, it is characterized in that: Foldable frame (7) is provided with flexible beam structure (9), and this structure is formed by being no less than the two mutual fits of joint and telescopic outer tube (10), inner sleeve (11) and catch gear (12).

2. according to claim 1 described a kind of folding bicycle with flexible crossbeam, it is characterized in that: flexible beam structure (9) is provided with the latch structure of being made up of latch (14) and pin-and-hole (15) (13).

3. according to claim 1 or 2 described a kind of folding bicycles with flexible crossbeam, it is characterized in that: catch gear (12) is made up of eccentric handle (16) and bearing pin (17).

4. according to claim 1 or 2 described a kind of folding bicycles with flexible crossbeam, it is characterized in that: outer tube (10), inner sleeve (11) are pipe.

5. according to claim 1 or 2 described a kind of folding bicycles with flexible crossbeam, it is characterized in that: outer tube is that flat outer tube (18), inner sleeve are pipe (19) in the flat, and the large-size of flat pipe is arranged in vertical direction.

6. according to claim 1 or 2 described a kind of folding bicycles with flexible crossbeam, it is characterized in that: flexible beam structure (9) is arranged horizontally.

7. according to claim 1 or 2 described a kind of folding bicycles with flexible crossbeam, it is characterized in that: flexible beam structure (9) is for being in tilted layout to trailing wheel (5) below.

8. according to claim 1 or 2 described a kind of folding bicycles with flexible crossbeam, it is characterized in that: outer tube (10) is arranged in by saddle (8) one sides, and inner sleeve (11) is arranged in forward (1) one side that takes turns.

9. according to claim 1 or 2 described a kind of folding bicycles with flexible crossbeam, it is characterized in that: flexible beam structure (9) is provided with a plurality of pin-and-holes (20).