CN201769971U

CN201769971U - Folding bicycle

Info

Publication number: CN201769971U
Application number: CN2010202856381U
Authority: CN
Inventors: 陆建英; 温韬
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-09
Filing date: 2010-08-09
Publication date: 2011-03-23
Anticipated expiration: 2020-08-09

Abstract

The utility model discloses a folding bicycle consisting of a direction part, a power part, a wheel part and a frame part, wherein a unilateral fork is served as a front fork of the direction part and is arranged at the same side with a sprocket of the power part; a front wheel and a rear wheel of the wheel part are respectively positioned at the opposite sides of the unilateral fork and the sprocket; and the frame part consists of a front beam and a rear beam that are connected by a hinge and fixed by a rear beam locking device, wherein the front beam is connected with the front fork by a folding steering fulcrum of a folding steering fastener and fixed by a front beam locking device; and a folding fixing buckle is arranged on a seat pipe. The folding bicycle is scientific and reasonable in structure, convenient and safe to operate, smart and attractive after being folded, and convenient to store or pull and carry, thus providing a portable and environment-friendly transportation for the trip of people.

Description

Folding bicycle

Technical field

The utility model relates to a kind of bicycle, especially a kind of folding bicycle.

Background technology

Under the overall background of advocating the low-carbon energy-saving life, bicycle becomes the popular vehicle of praising highly again.Particularly folding bicycle is convenient and swift when using because of it, and the market demand is vigorous day by day.Though present folding bicycle product has brought convenience for our life, also have some obviously deficiencies: fold mechanism complexity, complex operation, safety is not good enough; Folding profile is irregular, volume is bigger; The inconvenience of folding back promotes to carry.

Summary of the invention

The technical problems to be solved in the utility model provide a kind of simple in structure, processing ease, safe, folding regular, volume is less, the folding bicycle conveniently depositing and promote to carry.

Adopt following technical scheme for solving the problems of the technologies described above: this folding bicycle comprises direction part, power pack section, wheel part and vehicle frame part; The front fork of direction part is monolateral fork, and with the chain drum of power pack section in the same side; The front-wheel and the trailing wheel of wheel part lay respectively at monolateral fork and chain drum offside; Vehicle frame partly comprises the front-axle beam and the back rest, and both connect by car beam loose-leaf, and is fixed by back rest blocking device, and front-axle beam turns to the folding steering pivot of buckle to be connected with front fork by folding, and is fixed by the front-axle beam blocking device, and fixing buckle of folding is installed on the present pipe.

Front-axle beam blocking device or back rest blocking device comprise retracing spring, car beam latching device housing, locking pin, safety lock clasp nail; Car beam latching device housing is installed in the front-axle beam or the back rest, and the safety lock clasp nail is fixed on locking pin in the car beam latching device housing by retracing spring, and another retracing spring that is fixed on car beam latching device housing one side is supporting locking pin.

Front-wheel, front-axle beam, trailing wheel, the back rest and seat pipe are located at grade upon deployment.

Front-wheel, front-axle beam and trailing wheel, the back rest and seat pipe are in respectively on two planes that are parallel to each other after folding, and front-wheel and trailing wheel center align.

Two planes are between monolateral fork and chain drum.

The utility model is reasonable in design, and effect is remarkable:

1. fast folding: folding or launch processing ease, step is few, easy to use, folding back two-wheeled parallel near, whole flat rule takes up space little;

2. launch driving: this folding mode is fit to primary school to all ages of being grown up, Vehicle Frame Design science safety, and it is light comfortable to drive a vehicle, and is the good selection of healthy leisure activity;

3. poststack retinue: folding back compact conformation volume is easy to push-and-pull for a short time, carries when being convenient to go out and enters various public places, reduces stolen chance.

Description of drawings

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.

Front view when Fig. 1 is the expansion of the utility model folding bicycle.

Left view when Fig. 2 is the expansion of the utility model folding bicycle.

Fig. 3 is the cutaway view of the utility model folding bicycle along A-A line among Fig. 2.

Fig. 4 is the partial enlarged drawing of car beam part among Fig. 3.

Fig. 5 is the front view after the utility model folding bicycle folds.

Fig. 6 is the left view after the utility model folding bicycle folds.

Among the figure: 1 horizontal, 2 front-axle beams, 3 seat cushions, 4 seat cushion clips, 5 pipes, 6 fixing buckle of folding, 7 trailing wheels, 8 rear-wheel hubs, 9 chain drums, 10 is foot-operated, 11 back rest, 12 safety lock clasp nails, 13 car beam loose-leaves, 14 safety lock clasp nails, 15 front-wheels, 16 front wheels hub, 17 folding pivot points, 18 foldingly turn to buckle, 19 front forks, 20 handlebars, 21 retracing springs, 22 car beam latching device housings, 23 car beam locking pins, 24 vehicle latching device housings, 25 retracing springs, 26 front fork locking pins, 27 retracing springs, 28 retracing springs.

The specific embodiment

As depicted in figs. 1 and 2, folding bicycle of the present utility model comprises direction part, power pack section, wheel part and vehicle frame part.

Direction partly comprises handlebar 20, front fork 19, horizontal 1.Front fork 19 is monolateral forks, and with the chain drum 9 of power pack section in the same side, it is connected to realize front-wheel steering with the folding buckle 18 that turns to by the front-wheel steering bearing, steering bearing is installed in to fold and turns in the buckle 18.

Power pack section comprises foot-operated 10, chain drum 9.Foot-operated 10 are installed on the sprocket wheel of chain drum 9.Propulsive effort both can adopt manpower, also can adopt electric power or other power.

Wheel partly comprises front-wheel 15, front wheel hub 16, trailing wheel 7, rear-wheel hub 8.Front-wheel 15 and trailing wheel 7 lay respectively at monolateral fork and chain drum 9 offsides, and front-wheel 15 is connected with front fork 19 by front wheel hub 16, and trailing wheel 7 is connected on the chain drum 9 by rear-wheel hub 8.During expansion, (see Fig. 1 and Fig. 2) at grade and see at front-wheel, front-axle beam, trailing wheel, the back rest and seat pipe place; After folding, front-wheel, front-axle beam and trailing wheel, the back rest and seat are managed and are in respectively on two planes that are parallel to each other, and front-wheel and trailing wheel center align, and Fig. 5 and Fig. 6 (are seen) in above-mentioned two planes between monolateral fork and chain drum.

Vehicle frame partly comprises front-axle beam 2, the back rest 11, folding buckle 18, folding steering pivot 17, car beam loose-leaf 13, seat cushion 3, seat cushion clip 4, seat pipe 5, front fork clip 6, front-axle beam blocking device, the back rest blocking device of turning to.Front-axle beam 2 is connected by car beam loose-leaf 13 with the back rest 11, and is fixed by back rest blocking device; Front-axle beam 2 turns to the folding steering pivot 17 of buckle 18 to be connected with front fork 19 by folding, and is fixed by the front-axle beam blocking device; The back rest 11 is captiveed joint at a certain angle with chain drum 9, and seat cushion 3 is linked on the seat pipe 5 by seat cushion clip 4, and seat pipe 5 is connected with the back rest 11 by Fast detachable unit and can be flexible up and down as required, and fixing buckle of folding 6 is installed on the present pipe 5.

Fig. 3 and Fig. 4 show that the front-axle beam blocking device is installed in the front-axle beam 2, is made up of retracing spring 25, car beam latching device housing 24, front fork locking pin 26, retracing spring 28, safety lock clasp nail 14; Car beam latching device housing 24 is installed in the front-axle beam 2, safety lock clasp nail 14 is fixed on front fork locking pin 26 in the car beam latching device housing 24 by retracing spring 28, and another retracing spring 25 that is fixed on car beam latching device housing 24 1 sides is supporting front fork locking pin 26; Front fork locking pin 26 chucking fixed fold turn to buckle 18, and safety lock clasp nail 14 is locked front fork locking pin 26 again and played safety effect.Back rest blocking device is installed in the back rest 11, is made up of retracing spring 21, car beam latching device housing 22, car beam locking pin 23, retracing spring 27, safety lock clasp nail 12; Car beam latching device housing 22 is installed in the back rest 11, safety lock clasp nail 12 is fixed on car beam locking pin 23 in the car beam latching device housing 22 by retracing spring 27, and another retracing spring 21 that is fixed on car beam latching device housing 22 1 sides is supporting car beam locking pin 23; Car beam locking pin 23 chucking is being connected of front-axle beam 2 and the back rest 11 fixedly, and safety lock clasp nail 12 is locked car beam locking pin 23 again and played safety effect.

Below to folding bicycle of the present utility model launch, folded state describes.

Fig. 1 and Fig. 2 have shown the deployed condition of folding bicycle of the present utility model: horizontal stroke, front-wheel, front-axle beam, the back rest, seat pipe, trailing wheel all on same plane, front fork locking pin and front fork are folding to turn to buckle to be in locking state, the safety lock clasp nail is in locking state, car beam locking pin and car beam latching device housing are in locking state, the safety lock clasp nail is in locking state, has guaranteed riding safety.

Fig. 5 and Fig. 6 have shown the folded state of folding bicycle of the present utility model: front-wheel, trailing wheel are close to parallel can arbitrarily the promotion, and handlebar can fold and put down, and front fork is fixed in the seat pipe by fixing buckle of folding, and front-axle beam and front-wheel are at grade.

The using method of folding bicycle of the present utility model.

The folding operation of folding bicycle

1) operator stands in the left side of folding bicycle, left hand buttresses handlebar, right hand pulled down safety lock clasp nail, down stir until the safety lock clasp nail along the back rest and to automatically lock in next fixed position by retracing spring, this moment, car beam locking pin was pulled away from car beam latching device housing, by car beam loose-leaf rotation front-axle beam and the back rest to proper angle;

2) with right hand pulled down safety lock clasp nail, down stir until the safety lock clasp nail along front-axle beam and to automatically lock in next fixed position by retracing spring, this moment can be by handlebar or horizontal rotation front fork, and front fork revolves by folding pivot point and turn 90 degrees back and front-axle beam side by side;

3) front-wheel and trailing wheel are merged, this moment, front fork, front-axle beam, front-wheel were parallel with the back rest at grade, and 90 degree rotary folding clips also down push away until the fixing buckle of folding bayonet socket along the seat pipe and to block front fork;

4) the seat pipe down is urged to correct position and fixing, handle is folded down.

The expansion operation of folding bicycle

1) operator stands in the left side of folding bicycle, handlebar is connected, up stir the fixing buckle of folding bayonet socket with the right hand along the seat pipe, front-axle beam is pushed suitable angle aside through the car beam loose-leaf and the back rest, this moment, front fork became 90 degree by folding pivot point rotation back with front-axle beam by handlebar or horizontal rotation front fork;

2) spur the safety lock clasp nail once more with the right hand and tighten by retracing spring and the folding bayonet socket that turns to of front fork, decontrol the safety lock clasp nail then and automatically lock in a fixed position until the front fork locking pin;

3) front-axle beam is promoted as for the back rest parallel after, the right hand is stirred the safety lock clasp nail downwards, car beam locking pin is locked with car beam latching device housing through car beam latching device housing guiding by the promotion of retracing spring, decontrols the safety lock clasp nail and automatically locks in a fixed position;

4) the seat pipe is pulled up to desired height, and fixes at Che Liangshang.

Folding bicycle of the present utility model is simple to operate, step is few, safe, folding and expanding is convenient and swift, can make bicycle, mini-motorcycle, body-building apparatus during expansion, folding back profile is flat, be easy to deposit or push-and-pull is carried, adopt light-duty hard material to make more to alleviate deadweight and save muscle power, on and off duty for people, travel outdoors, the student goes to school that a kind of portable vehicle are provided.

Claims

1. folding bicycle comprises direction part, power pack section, wheel part and vehicle frame part, and it is characterized in that: the front fork of described direction part is monolateral fork, and with the chain drum of power pack section in the same side; The front-wheel and the trailing wheel of described wheel part lay respectively at monolateral fork and chain drum offside; Described vehicle frame partly comprises the front-axle beam and the back rest, and both connect by car beam loose-leaf, and is fixed by back rest blocking device, and front-axle beam turns to the folding steering pivot of buckle to be connected with front fork by folding, and is fixed by the front-axle beam blocking device, and fixing buckle of folding is installed on the present pipe.

2. folding bicycle according to claim 1 is characterized in that: described front-axle beam blocking device or back rest blocking device comprise retracing spring, car beam latching device housing, locking pin, safety lock clasp nail; Described car beam latching device housing is installed in the front-axle beam or the back rest, and the safety lock clasp nail is fixed on locking pin in the car beam latching device housing by retracing spring, and another retracing spring that is fixed on car beam latching device housing one side is supporting locking pin.

3. folding bicycle according to claim 1 is characterized in that: described front-wheel, front-axle beam, trailing wheel, the back rest and seat pipe are located at grade upon deployment.

4. folding bicycle according to claim 1 is characterized in that: described front-wheel, front-axle beam and trailing wheel, the back rest and seat pipe are in respectively on two planes that are parallel to each other after folding, and front-wheel and trailing wheel center align.

5. folding bicycle according to claim 4 is characterized in that: described two planes are between monolateral fork and chain drum.