CN2780601Y

CN2780601Y - Folding portable bicycle

Info

Publication number: CN2780601Y
Application number: CN 200520057322
Authority: CN
Inventors: 刘俊旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-25
Filing date: 2005-04-25
Publication date: 2006-05-17
Anticipated expiration: 2015-04-25

Abstract

The utility model relates to a folding portable bicycle which comprises bicycle wheels, a seat pad, a seat pad supporting beam, a direction handle, a direction handle supporting beam, a chain, pedals, chain wheels, and a front frame, a middle frame and a back frame of a bicycle frame, wherein two connecting handles of a locking device are used for fixed connection between the front frame and the middle frame, the middle frame and the back frame, and the back frame and the seat pad supporting beam. The locking device can realize repositioning and refixation after the mutual included angles of components connected by the connecting handles are changed through the cooperation of a rotating hole of a rotating member, pin holes around the rotating hole, a positioning column and a rotating axle on a fixing member, a spring, etc. for achieving the folding function of the bicycle. Therefore, the bicycle reduces the space usage of the volume thereof by about three times and is stored in cities where living areas are tense, which saves space, and the utility model has very convenient conveying and carrying during going up and down stairs and mountains and can even be lift when placed in a knapsack. The utility model has the advantage of convenient use for families and trips and is suitable for popularization and application on bicycles.

Description

A kind of folding-type portable bicycle

Technical field: the utility model relates to a kind of bicycle, particularly a kind of folding-type portable bicycle.

Background technology: at present, everybody used bicycle generally all is made up of major part captive joint such as vehicle frame, wheel, seat cushion, seat cushion strutbeam, steering handle, steering handle strutbeam, chain, foot-operated, sprocket wheel, and wherein the side arm of vehicle frame, middle frame and after-frame are connected as a single entity.Therefore, after the assembling of this bicycle, shape and volume are fixed, and cannot fold and dwindle, exist to take up room when putting and take care of greatly, corridor or on when going down the hill, carry and carry problems such as inconvenience.

Summary of the invention: the purpose of this utility model be to provide a kind of collapsible, can dwindle the folding-type portable bicycle that takes up room and be convenient for carrying.

The purpose of this utility model can be achieved as follows: this folding-type portable bicycle, mainly form by vehicle frame, wheel, seat cushion, seat cushion strutbeam, steering handle, steering handle strutbeam, chain, foot-operated, sprocket wheel, wherein vehicle frame is divided into side arm, middle frame and after-frame, it is characterized in that: being connected all between described side arm and the middle frame, between middle frame and the after-frame and between after-frame and the seat cushion strutbeam connects by blocking device; Two connection handles of described blocking device are separately fixed at side arm and middle frame, on middle frame and after-frame or after-frame and the seat cushion strutbeam, on the revolving part on the connection handle rotating hole is arranged, be distributed with at least 1 pin-and-hole around the center of rotating hole, at least 1 the positioning of rotating post that is fixed on the connecting element is corresponding with at least 1 pin-and-hole on the revolving part, S. A. passes connecting element successively, rotating hole on two revolving parts, spring, rotating hole on connecting element and two revolving parts, and S. A. 6 is captiveed joint with connecting element 5, S. A. one end is spacing through fastener, and the other end then has handgrip and is connected with connecting element.

As further improvement of the utility model: this folding-type portable bicycle lacks the rotating hole on the pairing revolving part of registration mast of the connecting element of a side and this connecting element.

As further improvement of the utility model: the described handgrip of this folding-type portable bicycle is provided with torsion spring, and an end of torsion spring is withheld on handgrip, and the other end then suppresses on connecting element or revolving part.

Being connected all between the side arm that the utility model utilizes vehicle frame and the middle frame, between middle frame and the after-frame and between after-frame and the seat cushion strutbeam connects by blocking device, this blocking device by connection handle revolving part and on rotating hole and the registration mast on the pin-and-hole, connecting element and S. A., spring etc. realize vehicle frame side arm, middle frame, after-frame and seat cushion strutbeam between can be in the location of diverse location and angle, thereby realized the collapsible of bicycle.Therefore, this bicycle is by folding, having dwindled it greatly takes up room, about 3 times of its volume-diminished is deposited very conserve space of this bicycle in the city of living space anxiety, corridor or on when going down the hill, the carrying and carry also very convenient, even can put knapsack into and carry, at home, travelling use all very convenient, so be well suited for promotion and application on bicycle.

Description of drawings:

Fig. 1 is the running condition structural representation of the utility model folding-type portable bicycle;

Fig. 2 is the locking device structure scheme drawing of the utility model folding-type portable bicycle;

Fig. 3 is first lateral plan of the blocking device of the utility model folding-type portable bicycle;

Fig. 4 is second lateral plan of the blocking device of the utility model folding-type portable bicycle;

Fig. 5 is the 3rd lateral plan of the blocking device of the utility model folding-type portable bicycle;

Fig. 6 is the blocking device front elevation of the utility model folding-type portable bicycle;

Fig. 7 is the folded state structural representation of the utility model folding-type portable bicycle;

Fig. 8 is another scheme drawing of the blocking device of the utility model folding-type portable bicycle;

The specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing:

In Fig. 1, show the structure of folding-type portable bicycle, vehicle frame 16 is made of side arm 161, middle frame 162 and after-frame 163.Side arm 161 connects together with steering handle strutbeam 21, and the upper end of steering handle strutbeam 21 is equipped with steering handle 20, and the lower end then is equipped with front vehicle wheel 251, and side arm 161 is connected with middle frame 162 by blocking device 15.Middle frame 162 is connected with after-frame 163 by blocking device 15, after-frame 163 also is connected with seat cushion strutbeam 19 by blocking device 15, the upper end of seat cushion strutbeam 19 is equipped with seat cushion 18, and big minor sprocket 241,242, chain 22, foot-operated 23 and rear wheel 252 are installed on the after-frame 163.

The structure of blocking device 15 as shown in Figure 2, two connection handles 14 of blocking device 15 are fixedly connected on respectively on the connected parts as on side arm 161 and middle frame 162, middle frame 162 and after-frame 163 or after-frame and the seat cushion strutbeam.On the revolving part 11 on the connection handle 14 rotating hole 12 is arranged, be evenly distributed with 4 pin-and-holes 13 around the center of rotating

hole

12,4 positioning of rotating posts 10 that are fixed on the connecting element 5 are corresponding with 4 pin-and-holes 13 on the revolving part 11.S. A. 6 passes the rotating hole 12 on rotating hole 12 on connecting element 5, two revolving parts 11, spring 9, connecting element 5 and two revolving parts 11 successively, S. A. 6 is captiveed joint with connecting element 5, S. A. 6 one ends are realized spacing through fastener 17, fastener 17 is located at annular groove 7 places, the other end then has handgrip 1 and is connected with connecting element 5, the stomidium 8 that handgrip 1 passes two side holes 3 and S. A. 6 on the handgrip 1 by bearing pin 4 is realized hinged, but handgrip 1 and connecting element 5 are also captiveed joint and fixed as welding or screw thread etc. certainly.

Here, because suppress respectively on a side of a side of a connecting element 5 and a revolving part 11 at the two ends of spring 9, when the position that does not have external force and registration mast 10 and pin-and-hole 13 just on time, registration mast 10 under the effect of spring 9 on the connecting element 5 will enter in the pin-and-hole 13 on the revolving part 11, thereby to playing location and fixing effect with connection handle 14 bonded assembly parts; When external force, promptly spur handgrip 1 to overcome the elastic force of spring 9, the pin-and-hole 13 that registration mast 10 on the connecting element 5 is broken away from the revolving part 11, revolving part 11 and connection handle 14 bonded assembly parts just can be rotated around S. A. 6 like this, registration mast 10 is just aimed at again with the position of pin-and-hole 13 when rotating to certain angle, unclamp handgrip 1, registration mast 10 on the connecting element 5 enters again in the pin-and-hole 13 on the revolving part 11, realized and the once more location of connection handle 14 bonded assembly parts after having changed mutual angle and fixing the principle of work of Here it is blocking device 15.Therefore, be distributed with at least 1 pin-and-hole 13 around the center of the rotating hole 12 on the revolving part 11, promptly can be 1,2,3,4,5,6,7,8,10,20 or or even more a plurality of, when pin-and-hole is got over for a long time, connection handle 14 bonded assembly parts can select the mutual angle that changes just many more, to adapt to different needs, accordingly, being fixed at least 1 positioning of rotating post 10 on the connecting element 5, promptly can be 1,2,3,4,5,6,7,8,10,20 or or even more a plurality of.

Situation when registration mast 10 being shown in Fig. 3, Fig. 4 breaking away from pin-and-holes 13, the situation that side-looking when registration mast 10 enters into pin-and-hole 13 has been shown in Fig. 5 and Fig. 6 and has faced.

Because the side arm 161 of the utility model folding-type portable bicycle and middle frame 162, middle frame 162 and after-frame 163 or after-frame and seat cushion strutbeam are all by blocking device 15, therefore, during use, this bicycle as shown in Figure 1, similar with ordinary bicycle, when folding, relocate and fixing getting final product after only needing the mutual angle between side arm 161 and the middle frame 162, between middle frame 162 and the after-frame 163, between after-frame and the seat cushion strutbeam to be changed by the principle of work of blocking device 15, simple, according to this folding of bicycle as shown in Figure 7, its volume has dwindled at least 3 times greatly.

In addition, in blocking device 15, also can lack the rotating hole 12 on the registration mast 10 pairing revolving parts 11 of the connecting element 5 of a side and this connecting element 5, promptly as shown in Figure 8, compared to Figure 1 the connecting element 5 in left side and the rotating hole 12 on the revolving part 11 have been lacked, but can realize the function of blocking device 15 equally, just bonded assembly intensity is poor slightly.Simultaneously, in blocking device 15, handgrip 1 is provided with torsion spring 2, torsion spring 2 is enclosed within on the bearing pin 4, one end of torsion spring 2 is withheld on handgrip 1, and the other end then suppresses on connecting element 5 or revolving part 11, like this under the effect of torsion spring 2, when handgrip 1 does not have external force just all the time inwardly near, can not be in and freely rock.

Claims

1. folding-type portable bicycle, mainly form by vehicle frame (16), wheel (251,252), seat cushion (18), seat cushion strutbeam (19), steering handle (20), steering handle strutbeam (21), chain (22), foot-operated (23), sprocket wheel (241,242), wherein vehicle frame (16) is divided into side arm (161), middle frame (162) and after-frame (163), it is characterized in that: being connected all between described side arm (161) and the middle frame (162), between middle frame (162) and the after-frame (163) and between after-frame and the seat cushion strutbeam connects by blocking device (15); Two connection handles (14) of described blocking device (15) are separately fixed at side arm (161) and middle frame (162), on middle frame (162) and after-frame (163) or after-frame and the seat cushion strutbeam, on the revolving part (11) on the connection handle (14) rotating hole (12) is arranged, be distributed with at least 1 pin-and-hole (13) around the center of rotating hole (12), at least 1 the positioning of rotating post (10) that is fixed on the connecting element (5) is corresponding with at least 1 pin-and-hole (13) on the revolving part (11), S. A. (6) passes connecting element (5) successively, rotating hole (12) on two revolving parts (11), spring (9), rotating hole (12) on connecting element (5) and two revolving parts (11), S. A. (6) one ends are spacing through fastener (17), and the other end then has handgrip (1) and is connected with connecting element (5).

2, folding-type portable bicycle according to claim 1 is characterized in that: lack the rotating hole (12) on the pairing revolving part of registration mast (10) (11) of the connecting element (5) of a side and this connecting element (5).

3, folding-type portable bicycle according to claim 1 is characterized in that: described handgrip (1) is provided with torsion spring (2), and an end of torsion spring (2) is withheld on handgrip (1), and the other end then suppresses on connecting element (5) or revolving part (11).