CN2474456Y

CN2474456Y - Folding bicycle

Info

Publication number: CN2474456Y
Application number: CN 01222742
Authority: CN
Inventors: 姜富军
Original assignee: BICYCLE MANUFACTURE Co OF ZHONGHUA BICYCLE (GROUP) Co Ltd SHENZHEN
Current assignee: BICYCLE MANUFACTURE Co OF ZHONGHUA BICYCLE (GROUP) Co Ltd SHENZHEN
Priority date: 2001-05-15
Filing date: 2001-05-15
Publication date: 2002-01-30
Anticipated expiration: 2011-05-15

Abstract

The utility model relates to a folding bicycle, which is equipped with a seat tube folding mechanism, a seat tube support bar, a rocker, a handle bar folding mechanism, and a saddle folding mechanism, wherein one end of a support tube is welded with the seat tube folding mechanism in one body, the seat tube is articulated with a lower tube of the support tube by a shaft through the seat tube folding mechanism, and the lower portion of the seat tube folding mechanism is inserted into a locating slot of a back triangular. The upper end of the seat tube support bar is articulated with a support seat tube through a connection shaft, a draw-in gear of the lower end of the seat tube support bar is snapped in an upper locating clamp of the back triangular, and the lower tube of the support tube is connected with the back triangular through a movable connection shaft of the rocker. The utility model relates to a folding bicycle which has the advantages of novel folding structure, science and reasonability, small folded volume, and convenient carrying.

Description

Folding bicycle

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

At present, though existing multi-form folding bicycle, the following deficiency of ubiquity: 1, aspect moulded, the intensity of riding and rigidity and unsatisfactory, be difficult to satisfy the high standard requirement of people to bicycle; Though 2, these Folding Bicycles have folding function, the width after ubiquity is folding, the defective that volume and weight is all still bigger; 3, actual folding process and inconvenient, folding effect is not good.4, generally all can not stand after folding, can not carry out after folding.Because have these deficiencies, Folding Bicycle is difficult to promote the use of.

The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art, proposes a kind of foldable structure novelty, scientific and reasonable, the folding bicycle that volume after folding is little, easy to carry.

Realize the technical scheme of above-mentioned purpose: a kind of folding bicycle, comprise handlebar, support tube, the seat pipe, saddle and Vee formation, it is characterized in that: be provided with seat pipe fold mechanism, seat pipe pole and rocking bar, the head pipe of support tube is pipe integral type welding base pipe fold mechanism down, the seat pipe is hinged by the following effective axle of seat pipe fold mechanism and support tube, insert in the positioning groove of Vee formation seat pipe fold mechanism bottom, Vee formation is the integral type welded structure, the upper end of seat pipe pole is by the hinged supporting seat pipe of adapter shaft, the lower end dop of seat pipe pole snaps in the locating clamp plate of Vee formation top, flexibly connects axle by rocking bar between the following pipe of support tube and the Vee formation and is connected.

Saddle is provided with the saddle fold mechanism that spins upside down down.

The saddle fold mechanism is made up of handle, pressing plate, base, rotating shaft, saddle beam and flap, saddle beam on the saddle is fixed between pressing plate and the flap by folder, the head of handle is by spring and base clamping, and base is hinged by rotating shaft and flap, and the saddle fold mechanism is connected with the upper end of seat pipe.

Between handlebar and vertical tube of front fork, handlebar folding mechanism is set.

Handlebar folding mechanism is made up of handle, pulling shaft, last box, following box and rotating shaft, handle connects pulling shaft, pulling shaft is held box down, the head of handle is an eccentric orfice, and last box is hinged by rotating shaft with following box, last box and the welding of handlebar bottom, following box middle part has the hole, be enclosed within outside the vertical tube of front fork, the box upper nut is turned round on vertical tube of front fork, and the box folder is fixed on retaining centre on nut and the front fork.

Be provided for blocking the elastic force retaining silk of seat pipe pole bottom dop in the locating clamp plate of Vee formation top.

Hook is set and the corresponding hanging hole on the connection Vee formation when folded state on the following pipe of support tube.

The upper end of seat pipe pole is hinged with the seat pipe by pipe clamp spiral shell axle, and the bottom dop of seat pipe pole is the adjustable screw connection structure of length.

Adopt technique scheme, because the utility model is provided with seat pipe fold mechanism, seat pipe pole and rocking bar, the head pipe of support tube is pipe integral type welding base pipe fold mechanism down, Vee formation is the integral type welded structure, not only foldable structure uniqueness, novelty, and whole vehicle frame is rigid unitary, and it is stable, safe, reliably to guarantee to ride.In addition, because the utility model foldable structure is scientific and reasonable, trailing wheel is near front-wheel when folded state, and handlebar can fold, and saddle can fold, and makes that volume after folding is little, cost is low, complete vehicle weight is light, easy to carry, and practicality is extremely strong.

Below by embodiment, and in conjunction with the accompanying drawings, the utility model is described in further detail:

Fig. 1 is a kind of deployed condition structural representation of folding bicycle.

Fig. 2 is the folded state structural representation of Fig. 1 folding bicycle.

Fig. 3 is the structural representation of support tube 4 among Fig. 1.

Fig. 4 is A-A cross-sectional view of Fig. 3.

Fig. 5 is that the A of Fig. 3 is to revolved view.

Fig. 6 is handlebar folding mechanism structure (a cuing open) view among Fig. 1.

Fig. 7 is the left view of Fig. 6.

Fig. 8 is the birds-eye view of Fig. 6.

Fig. 9 is the hinged pivot structure scheme drawing of handlebar folding mechanism.

Figure 10 is that the A of Fig. 6 is to partial view.

Figure 11 is a saddle fold mechanism scheme drawing among Fig. 1.

Figure 12 is the birds-eye view of Figure 11.

Figure 13 is a Vee formation shelf structure front view among Fig. 1.

A, B among Figure 14 (a) and (b), (c), the corresponding Figure 13 of (d) difference, C, D are to view.

Embodiment: in conjunction with Fig. 1 ~ Figure 14, a kind of folding bicycle, comprise front-wheel 1, trailing wheel 19, handlebar 6, front fork 2, support tube 4, Vee formation 17, seat pipe 8, seat pipe fold mechanism 13, rocking bar 7, seat pipe pole 11, saddle 9 and saddle fold mechanism 10, be connected by handlebar folding mechanism 5 between handlebar 6 and the vertical tube of front fork 2, the head pipe of support tube 4, following pipe is the integral type welded structure with seat pipe fold mechanism 13 bottoms, Vee formation 17 is the integral type welded structure, insert in Vee formation 17 positioning grooves seat pipe fold mechanism 13 bottoms, seat pipe pole 11 bottom dops snap in the Vee formation 17 top locating clamp plates 22, the elastic force retaining silk 21 on Vee formation 17 tops blocks seat pipe pole 11 bottom dops, rocking bar 7 with between the following pipe of support tube 4 and the Vee formation 17 by

adapter shaft

23,24 connect, the following pipe of support tube 4 is provided with the hanging hole 17-1 that connects when hook 25 is used for folded state on the Vee formation, seat pipe 8 is hinged with the following effective axle 14 of support tube 4 by seat pipe fold mechanism 13, the upper end of seat pipe 8 connects saddle fold mechanism 10, seat pipe pole 11 is hinged with seat pipe 8 by pipe clamp spiral shell axle 12, seat pipe pole 11 is managed 8 upper support at the rear portion with seat, guarantee the rigidity of seat pipe 8, seat pipe pole 11 bottom dops are the adjustable screw connection structures of length.It is rigid unitary that said mechanism makes whole vehicle frame, and it is stable, safe, reliable to guarantee to ride, and complete vehicle weight is light, cost is low, folding back volume is little, easy to carry.

Handlebar folding mechanism 5 is by handle 5-1, pulling shaft 5-2, last box 5-3, following box 5-5 and rotating shaft 5-6 form (referring to Fig. 6 ~ 10), in the time of closed and locked, pulling shaft 5-2 holds box 5-5 down, the head of handle 5-1 is an eccentric orfice, handle turns over turnback can loosen pulling shaft spare 5-2, handle turn 90 degrees and can allow pulling shaft 5-2 head deviate from from the hole of following box 5-5, last box 5-3 and following box 5-5 are hinged by rotating shaft 5-6, two boxes are the handlebar folding position after turning over turnback, last box 5-3 and the welding of handlebar 6 bottoms, following box 5-5 middle part has the hole, is enclosed within outside the standpipe of front fork 2, the box upper nut is turned round on vertical tube of front fork, and the box folder is fixed on retaining centre on nut and the front fork.

Saddle fold mechanism 10 is formed (referring to Figure 11 ~ 12) by handle 10-1, pressing plate 10-2, base 10-3, rotating shaft 10-4, saddle beam 10-6 and flap 10-7, it among the figure closed and locked position, saddle beam 10-6 on the saddle 9 is fixed between pressing plate 10-2 and the flap 10-7 by folder, driving handle 10-1 upwards, its head can be thrown off with base 10-3.Base 10-3 is hinged by rotating shaft 10-4 and flap 10-7.Two boxes about 95 degree backs of overturning are the saddle folding position.

Whether the utility model component configuration alerting ability installs parts such as front fender 3, clothes hanger 15, back mud plate 16, the neither car load main functionality that influences, above-mentioned zero, parts of dismounting arbitrarily in the use.

Folding step:

1, opens handlebar folding mechanism 5, with handlebar turnback left to the front-wheel;

2, push away seat pipe pole 11 bottoms forward, its dop is deviate from from clamp 22;

3, open saddle fold mechanism 10, tube's axis is approaching parallel down in the saddle that upwards the overturns seat pipe 8 that fell forward simultaneously, the axis that makes seat pipe 8 and support tube 4;

4, seat being managed fold mechanism 13 bottoms extracts from the positioning groove of Vee formation 17, simultaneously with whole rear portion around rocking bar 7 lower end rotational, and while rocking bar 7 is around the upper end rotational, until trailing wheel 19 and front-wheel 1 are closed up (front and back applying), the following hook of elastic force hook 25 hooks the knock hole on the five-way pipe in the Vee formation 17 at this moment.

The bicycle of folded state as shown in Figure 2.

Deployment step of the present utility model and opposite the getting final product of above-mentioned folding step clause.

In addition, adopt the folding bicycle of said structure, also can realize standing behind the folding and rolling over the back and carry out.

Stand behind the folding: all folding after poppet 18 lower ends, two drift angles and front-wheel 1, trailing wheel 19 bottoms substantially in one plane, car load can be stablized and stands.

Carry out the folding back: seat pipe 8, saddle 9 place not folding position.All the other each parts place whole folding positions.Hand steered saddle 9 with front-wheel slightly overhead only allows trailing wheel contact with ground, can conveniently carry out.

The utility model is after all folding, and the following pipe of portable support tube 4 can be convenient for carrying.

Claims

1, a kind of folding bicycle, comprise handlebar, support tube, the seat pipe, saddle and Vee formation, it is characterized in that: be provided with seat pipe fold mechanism, seat pipe pole and rocking bar, the head pipe of support tube is pipe integral type welding base pipe fold mechanism down, the seat pipe is hinged by the following effective axle of seat pipe fold mechanism and support tube, insert in the positioning groove of Vee formation seat pipe fold mechanism bottom, Vee formation is the integral type welded structure, the upper end of seat pipe pole is by the hinged supporting seat pipe of adapter shaft, the lower end dop of seat pipe pole snaps in the locating clamp plate of Vee formation top, flexibly connects axle by rocking bar between the following pipe of support tube and the Vee formation and is connected.

2, according to the described folding bicycle of claim 1, it is characterized in that: saddle is provided with the saddle fold mechanism that spins upside down down.

3, according to the described folding bicycle of claim 2, it is characterized in that: the saddle fold mechanism is made up of handle, pressing plate, base, rotating shaft, saddle beam and flap, saddle beam on the saddle is fixed between pressing plate and the flap by folder, the head of handle is by spring and base clamping, base is hinged by rotating shaft and flap, and the saddle fold mechanism is connected with the upper end of seat pipe.

4, according to the described folding bicycle of claim 1, it is characterized in that: between handlebar and vertical tube of front fork, handlebar folding mechanism is set.

5, according to the described folding bicycle of claim 4, it is characterized in that: handlebar folding mechanism is made up of handle, pulling shaft, last box, following box and rotating shaft, handle connects pulling shaft, and pulling shaft is held box down, and the head of handle is an eccentric orfice, last box is hinged by rotating shaft with following box, last box and the welding of handlebar bottom, following box middle part has the hole, is enclosed within outside the vertical tube of front fork, the box upper nut is turned round on vertical tube of front fork, and the box folder is fixed on retaining centre on nut and the front fork.

6, according to the described folding bicycle of claim 1, it is characterized in that: the elastic force retaining silk that is provided for blocking seat pipe pole bottom dop in the locating clamp plate of Vee formation top.

7, according to the described folding bicycle of claim 1, it is characterized in that: hook is set and the corresponding hanging hole on the connection Vee formation when folded state on the following pipe of support tube.

8, according to the described folding bicycle of claim 1, it is characterized in that: the upper end of seat pipe pole is hinged with the seat pipe by pipe clamp spiral shell axle, and the bottom dop of seat pipe pole is the adjustable screw connection structure of length.