CN201296328Y

CN201296328Y - Novel portable folding bicycle

Info

Publication number: CN201296328Y
Application number: CNU2008201755494U
Authority: CN
Inventors: 唐井军
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-18
Filing date: 2008-10-18
Publication date: 2009-08-26
Anticipated expiration: 2018-10-18

Abstract

The utility model relates to a novel portable folding bicycle which mainly comprises wheels, a front fork sleeve pipe, a bicycle frame connecting piece, a bicycle frame, a bicycle frame positioning rod, handlebars, a saddle, a chain wheel transmission system, and the like. The bicycle frame is connected with the front fork sleeve pipe through the bicycle frame connecting piece, and a tubular structure at the front end of the bicycle frame connecting piece is sleeved outside the front fork sleeve pipe and can slide on the front fork sleeve pipe. The bicycle frame comprises a bicycle frame upper section and a bicycle frame lower section, and the axial rotation can be done between the bicycle frame upper section and the bicycle frame lower section. During the folding process, the bicycle frame connecting piece slides upwards along the front fork sleeve pipe, and the bicycle frame bends downwards taking a stud shaft on the bicycle frame connecting piece as the center; a saddle supporting rod (together with the saddle ) bends upwards taking a saddle supporting rod bolt at the lower end of the saddle supporting rod as the center; both the bicycle frame lower section and the front fork make axial rotation, finally, the front wheel and the rear wheel are combined together, and the bicycle frame is close to the front fork sleeve pipe and is mutually parallel with the front fork sleeve pipe; and the folded bicycle form a shape of a hand-pull type trailer, can be conveniently dragged for waling forward and getting upstairs, is suitable for being carried during the on business trip or the journey and solves the problem that the bicycle goes upstairs difficultly.

Description

A kind of novel portable folding bicycle

Technical field

The utility model relates to a kind of novel portable folding bicycle, be a kind of travel, go to school, the very convenient and practical walking-replacing tool in aspect such as trip.

Technical background

At present, Folding Bicycle major part on the market is to adopt modes such as vehicle frame doubling, handlebar are rolled over down, the downward modulation of peace seat to reach to reduce the bicycle oad, because the parts of doubling both sides are asymmetric, make the desirable effect of out of reach after the doubling, bicycle after folding still is not convenient for carrying very much and moves, particularly be not suitable for last ladder, go up subway and last train etc., bring inconvenience to the user.Though have partially folded formula bicycle after folding, can reach smaller volume,, be difficult to be promoted widely because of its profile and traditional bicycle differ too big.

Summary of the invention

Sign the problem in above-mentioned existence, the utility model provides a kind of novel portable folding bicycle, and the vehicle frame of novel portable folding bicycle can slide on the front fork sleeve pipe by frame connecting piece, and vehicle frame can be done axially rotation.After folding, front vehicle wheel and rear wheel can close up, and main support can be in a position of drawing close relatively and being parallel to each other, and forms the structure of hand pulling type trailer, and profile is very compact.Bicycle after folding still can tow or go up in tow ladder forward.

For achieving the above object, technical solution of the present utility model is finished as follows: the novel portable folding bicycle mainly is made up of front vehicle wheel, front fork, front fork sleeve pipe, frame connecting piece, vehicle frame, vehicle frame radius stay, handlebar, saddle, sprocket drive system and rear wheel etc.Front vehicle wheel is installed on the front fork, and front fork passes the front fork sleeve pipe and links to each other with handlebar, and front fork can rotate in the front fork sleeve pipe.The tubular structure of frame connecting piece front end is enclosed within the outside of front fork sleeve pipe, and can slide on the front fork sleeve pipe.There is the frame connecting piece locating dowel pin top of frame connecting piece, the frame connecting piece locating dowel pin can insert in the positioning groove of front fork sleeve pipe below, prevent in process by bike frame connecting piece on the front fork sleeve pipe, upwards slide (because of the reason of gravity, frame connecting piece generally only produces downward power by bike the time).The frame connecting piece rear end links to each other by stud shaft with the upper end of vehicle frame, and vehicle frame (together with the parts on the vehicle frame) can be that roll over downwards at the center with the stud shaft.Vehicle frame is made up of vehicle frame epimere and vehicle frame hypomere, can do axial rotation between vehicle frame hypomere and the vehicle frame epimere.Saddle links to each other with vehicle frame by saddle pole.The fast-open type clip is arranged on the saddle pole, be connected with the saddle strut on the fast-open type clip, the lower end of saddle strut links to each other by lower end position by bolt and vehicle frame hypomere.The front end of vehicle frame radius stay links to each other by the connect to ground below of part of bolt, and there are bathtub construction and frame lock in the rear end.Under normal circumstances (state of time by bike), last gulde edge on the vehicle frame epimere and the following gulde edge on the vehicle frame hypomere are in a straight line, both snap in the groove of frame connecting piece rear end simultaneously, and by frame lock bolt jail, making can not turn between vehicle frame hypomere and the vehicle frame epimere.

When folding, at first unclamp frame lock and frame connecting piece locating dowel pin on the vehicle frame radius stay, frame connecting piece can upwards be slided along the front fork sleeve pipe, and vehicle frame (together with the parts on the vehicle frame) can be that roll over downwards at the center with the stud shaft on the frame connecting piece then; Unclamp the fast-open type clip on the saddle pole, saddle pole (together with saddle) then can be upwards folding of center with the saddle pole bolt of its lower end; Vehicle frame hypomere (together with the parts on the vehicle frame) revolves in the direction of the clock and turn 90 degrees (because of doing axial rotation between vehicle frame hypomere and the vehicle frame epimere), front vehicle wheel (in aggregates with front fork and handlebar) revolves in the opposite direction and turn 90 degrees (front fork rotates) in the front fork sleeve pipe, and front vehicle wheel and rear wheel also are in the same place; The exposed junction of handlebar is rolled over downwards; Bicycle after folding forms hand pulling type trailer shape, can drag forward.

The utility model has the advantages that:

1, after the novel portable folding bicycle folded, front vehicle wheel and rear wheel can close up, and main support can be in a position of drawing close relatively and being parallel to each other, and profile is very compact, is easy to carry;

2, the folding back of novel portable folding bicycle forms the hand pulling type trailer configuration, can move ahead in tow easily and last ladder, also can load the article of saluting, and is suitable for to carry in going on business or travelling, and has solved the bicycle problem of difficulty upstairs.

3, profile after the novel portable folding bicycle launches and standard bicycle difference are little, more hold susceptible to user acceptance.

Description of drawings

Fig. 1 is total figure of novel portable folding bicycle

Fig. 2 is novel portable folding bicycle folding process figure one

Fig. 3 is novel portable folding bicycle folding process figure two

Fig. 4 is the folding back of a novel portable folding bicycle front elevation

Fig. 5 is the folding trailing flank figure of novel portable folding bicycle

The specific embodiment

With reference to Fig. 1, Fig. 2, the novel portable folding bicycle mainly is made up of front vehicle wheel (1), front fork (2), front fork sleeve pipe (4), frame connecting piece (3), vehicle frame (9), vehicle frame radius stay (15), handlebar (6), saddle (12), sprocket drive system (17) and rear wheel (18) etc.Front vehicle wheel (1) is installed on the front fork (2), and front fork (2) passes front fork sleeve pipe (4) and links to each other with handlebar (6) by clip (5), and front fork (2) can rotate in front fork sleeve pipe (4).The tubular structure of frame connecting piece (3) front end is enclosed within front fork sleeve pipe (4) outside, can go up at front fork sleeve pipe (4) and slide.Frame connecting piece (3) top has frame connecting piece locating dowel pin (7), frame connector locating dowel pin (7) can insert in the positioning groove of front fork sleeve pipe (4) below, prevents connect to ground the slip between the part (3) of in process by bike front fork sleeve pipe (4).Frame connecting piece (3) rear end links to each other by stud shaft (8) with vehicle frame (9) upper end, and vehicle frame (9) can be that down roll at the center with stud shaft (8).Vehicle frame (9) is made up of vehicle frame epimere (20) and vehicle frame hypomere (21), can do axial rotation between vehicle frame epimere (20) and the vehicle frame hypomere (21).The downside of vehicle frame epimere (20) has last gulde edge (19), and the downside of vehicle frame hypomere (21) has following gulde edge (22).The front end of vehicle frame radius stay (15) links to each other by the connect to ground below of part (3) of bolt, and there is frame lock (16) rear end.Under deployed condition (state of time by bike), the following gulde edge (22) of the last gulde edge (19) of vehicle frame epimere (20) downside and vehicle frame hypomere (21) downside is in a straight line, both snap in the draw-in groove of vehicle frame radius stay (15) rear end simultaneously, and by frame lock (16) bolt jail, making can not turn between vehicle frame epimere (20) and the vehicle frame hypomere (21).Saddle (12) is by the saddle pole bolt (10) of saddle pole (11) lower end and linking to each other by lower end position of vehicle frame hypomere (21), be with fast-open type clip (13) on the saddle pole (11), be connected with saddle strut (14) on the fast-open type clip (13), the lower end of saddle strut (14) links to each other with vehicle frame hypomere (21) by bolt.During deployed condition, triangular frame structure of the common formation in the lower end of saddle pole (11), saddle strut (14) and vehicle frame (9).When folding, at first unclamp the frame lock (16) and the frame connecting piece locating dowel pin (7) of vehicle frame radius stay (15) rear end, frame connecting piece (3) can upwards be slided along front fork sleeve pipe (4), and vehicle frame (9) (together with all parts on the vehicle frame) can be that roll over downwards at the center with the stud shaft (8) on the frame connecting piece (3) then; Unclamp the fast-open type clip (13) on the saddle pole (11), saddle pole (11) then can be upwards folding of center with the saddle pole bolt (10) of its lower end together with saddle (12); Vehicle frame hypomere (21) revolves in the direction of the clock and turn 90 degrees (because of doing axial rotation between vehicle frame epimere (20) and the vehicle frame hypomere (21)), and front fork (2) revolves in the opposite direction and turn 90 degrees, and makes front vehicle wheel (1) and rear wheel (18) and (as shown in Figure 3) together; The exposed junction of handlebar (6) is rolled over (as shown in Figure 3) downwards, form the shape (as Fig. 4, shown in Figure 5) of hand pulling type trailer at last, can drag forward.

Claims

1, a kind of novel portable folding bicycle mainly is made up of front vehicle wheel (1), front fork (2), frame connecting piece (3), front fork sleeve pipe (4), vehicle frame (9), vehicle frame radius stay (15), handlebar (6), saddle (12), sprocket drive system (17) and rear wheel (18) etc.; It is characterized in that: vehicle frame (9) links to each other with front fork sleeve pipe (4) by frame connecting piece (3); Frame connecting piece (3) front end and is enclosed within the outside of front fork sleeve pipe (4) in a tubular form; Frame connecting piece (3) can go up at front fork sleeve pipe (4) and slide; The rear end of frame connecting piece (3) links to each other by stud shaft (8) with the upper end of vehicle frame (9), and vehicle frame (9) can be that down roll at the center with stud shaft (8); The below of frame connecting piece (3) links to each other by the front end of bolt with vehicle frame radius stay (15), and vehicle frame radius stay (15) can be the center swing with the bolt of its front end; The rear end of vehicle frame radius stay (15) links to each other with vehicle frame (9) by frame lock (16); Similar leg-of-mutton framed structure of the common formation in the top of frame connecting piece (3), vehicle frame radius stay (15) and vehicle frame (9); After folding, can draw close and be parallel to each other between front vehicle wheel (1) and the rear wheel (18) and between vehicle frame (9) and the front fork sleeve pipe (4), form the shape of hand pulling type trailer at last.

2, by the described a kind of novel portable folding bicycle of claim 1, it is characterized in that: vehicle frame (9) becomes tubulose, it is made up of vehicle frame epimere (20) and vehicle frame hypomere (21), both link to each other with the axle shape structure in managing, and can do axial rotation between vehicle frame epimere (20) and the vehicle frame hypomere (21).

3, by the described a kind of novel portable folding bicycle of claim 1, it is characterized in that: the top of vehicle frame (9) lower end links to each other with saddle pole (11) by saddle pole bolt (10), be with fast-open type clip (13) on the saddle pole (11), be connected with saddle strut (14) on the fast-open type clip (13), the lower end of saddle strut (14) links to each other with vehicle frame (9) lower end by bolt; During deployed condition, saddle pole (11), saddle strut (14) and vehicle frame (9) constitute a triangular frame structure jointly; During fast-open type clip (13) on unclamping saddle pole (11), saddle pole (11) can be a upwards folding of center with saddle pole bolt (10) then together with saddle (12), and fast-open type clip (13) then can be along saddle pole (11) to lower slider; After folding, saddle pole (11) can be pressed close to vehicle frame (9), saddle strut (14) can be pressed close to saddle pole (11).