CN2597316Y

CN2597316Y - Portable folding bicycle

Info

Publication number: CN2597316Y
Application number: CNU022484701U
Authority: CN
Inventors: 朱国一
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-30
Filing date: 2002-09-30
Publication date: 2004-01-07
Anticipated expiration: 2012-09-30

Abstract

The utility model discloses a portable foldaway bicycle which is characterized in that: a vehicle body pipe, a vehicle tail pipe and a front pipe are provided with a series of permanent seats. The permanent seat of the front pipe is connected with the permanent seat of the vehicle body pipe. The permanent seat of a dual hole connection rod is connected with a dual hole connection rod, the other end of which is connected with a three hole connecting rod, the center hole of which is connected with the permanent seat of the connecting rod and the other end of which is connected with a spring connecting rod, the other end of which is connected with the permanent seat of the vehicle tail pipe. The permanent seat of the shock absorber is connected with one end of the shock absorber, the other end of which is connected with a supporting device which is connected with a lock clip. An installation sleeve is provided with a connecting axis which is provide with a bridge large and a bridge small chain wheels which are connected with the chain wheels on the front and rear wheels through two chains. A halter pie is provided with a handle folding device; the utility model has the advantages of convenient folding, easy to carry, labor saving in use and therefore, and is suitable for the manufacturing of foldaway bicycle.

Description

A kind of portable folding bicycle

Technical field

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

Background technology

At present, people all be by take bus, subway, or mode on and off duty, go out working, tourism etc. such as oneself driving, but between family and station, parking area and the office, exist the distance of a Dingyuan between the places such as parking area, station and office, sight spot, and in this section distance, lack the vehicle easily again, if the walking walking, dislike the time oversize again, make the people tired.The somebody has adopted method by bike to ride instead of walk, yet present bicycle volume ratio is bigger, be not easy to portably use, also unsve situation may occur when passing in and out some narrow local time, though some Foldable bicycles are arranged at present, they exist the shortcoming of folding difficulty, trouble a bit, be not easy to use, and, the rider is not only difficultly required great effort, and cause fatigue easily because transmission device and against shock are provided with the shortcoming that exists.

Summary of the invention

In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of folding convenient, is easy to carry, labour-saving portable folding bicycle when using.

The technical scheme that its technical matters that solves the utility model adopts is:

A kind of portable folding bicycle, comprise vehicle body pipe, cushion pipe, cushion, tailstock pipe, preceding facial canal, faucet, front-wheel, front fork, trailing wheel, back vent and foot-operated, preceding facial canal permanent seat, connecting rod permanent seat, tailstock pipe permanent seat, locking folder and chain wheel-mounting sleeve are arranged on the vehicle body pipe; Bumper permanent seat, spring link permanent seat, mounting sleeve are housed on the tailstock pipe; On the preceding facial canal vehicle body pipe permanent seat, two hole connecting rod permanent seats are arranged; Vehicle body pipe permanent seat before preceding facial canal permanent seat axle center connects on the facial canal, connecting rod permanent seat axle center, two holes connects an end of one two hole connecting rod, the other end axle center of two hole connecting rods connects an end of one three hole connecting rod, the interstitial hole axle center of three hole connecting rods is connected on the connecting rod permanent seat, the other end axle center of three hole connecting rods connects an end of a spring link, the other end axle center of spring link connects tailstock pipe permanent seat, the bumper permanent seat connects an end of bumper, the other end of bumper connects bracing or strutting arrangement, the bracing or strutting arrangement axle center connects the locking folder, the axle center that is connected that connects vehicle body pipe and tailstock pipe is housed on the mounting sleeve, adapter shaft has gap bridge minor sprocket and gap bridge hinge wheel in the heart, on the preceding chain wheel-mounting sleeve preceding sprocket wheel is housed, preceding sprocket wheel is connected with the gap bridge minor sprocket by a big chain, the gap bridge hinge wheel is connected with back sprocket wheel on the trailing wheel by gimmal, and the handle folding device is installed on the faucet; Bracing or strutting arrangement is to be welded with to connect folder on a hold-down arm, and U-shaped clamp and supporting blade have two symmetrical concave points on the U-shaped clamp; The handle folding device is to be welded with guide head on faucet, the faucet bottom has groove, be installed in the preceding facial canal, one folding handles is welded with eccentric rotary locking folder, on the eccentric rotary locking folder positioned trigger is arranged, and the bottom of eccentric rotary locking folder connects a hanging bolt, positioned trigger is equipped with torsion spring, the hanging bolt head has mounting hole and positioning step, and hanging bolt is packed in the faucet, in the hanging bolt bottom tapered cup nut and spring is housed.

The beneficial effects of the utility model are: this portable folding bicycle has adopted a series of axle center connection structure, use the point of attachment place of hand lower spring connecting rod and three hole connecting rods during use, just can be easily that cycle frame is folding, folding very convenient, simultaneously positioned trigger is upwards pulled, can folding handles is folding, and faucet is to lower slider, finish the folding of tap part, folding very convenient, and the transmission device of this bicycle has adopted double-stranded bar structure, bigger transmitting ratio has guaranteed adopting less front and back wheel also can obtaining fast speeds when reducing size, and is provided with the against shock device on the cushion, and is laborsaving, comfortable, bicycle volume after folding is little, is easy to carry.

Description of drawings

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

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a framed structure scheme drawing of the present utility model;

Fig. 3 is a gap bridge flywheel scheme of installation of the present utility model;

Fig. 4 is a cushion pipe locking scheme drawing of the present utility model;

Fig. 5 is the birds-eye view of the structure of Fig. 4;

Fig. 6 is that cushion pipe of the present utility model unclamps scheme drawing;

Fig. 7 is the birds-eye view of the structure of Fig. 6;

Fig. 8 is a faucet locking state scheme drawing of the present utility model;

Fig. 9 is the I portion enlarged drawing of the structure of Fig. 8;

Figure 10 is the folding scheme drawing of faucet folding handles of the present utility model;

Figure 11 is the I portion enlarged drawing of the structure of Figure 10;

Figure 12 is a framed structure folding operation constitution diagram of the present utility model;

Figure 13 is folding completion status figure of the present utility model.

The specific embodiment

With reference to Fig. 1, Fig. 2, Fig. 3, a kind of portable folding bicycle of the present utility model, comprise vehicle body pipe 1, cushion pipe 2, cushion 3, tailstock pipe 4, preceding facial canal 5, faucet 6, front-wheel 71, front fork 72, trailing wheel 73, back vent 74 and ride 75, facial canal permanent seat 21, connecting rod permanent seat 22, tailstock pipe permanent seat 23, locking folder 24 and chain wheel-mounting sleeve 25 before on vehicle body pipe 1, being welded with; Be welded with bumper permanent seat 11, spring link permanent seat 12, mounting sleeve 13 on the tailstock pipe 4; Be welded with vehicle body pipe permanent seat 31, two hole connecting rod permanent seats 32 on the preceding facial canal 5; Vehicle body pipe permanent seat 31 before preceding facial canal permanent seat 21 connects on the facial canal, the connecting rod permanent seat 32 of preceding facial canal connects an end of one two hole connecting rod 61, the other end of two hole connecting rods 61 connects an end of one three hole connecting rod 62, the interstitial hole of three hole connecting rods 62 is connected on the vehicle body pipe permanent seat 22, the other end of three hole connecting rods 62 connects an end of a spring link 63, the other end of spring link 63 connects tailstock pipe permanent seat 12, bumper permanent seat 11 on the tailstock pipe connects an end of bumper 10, the other end of bumper 10 connects bracing or strutting arrangement 90, bracing or strutting arrangement 90 connects locking folder 24, have on the mounting sleeve 13 connect vehicle body pipe and tailstock pipe be connected axle center 41, connect on the axle center 41 gap bridge minor sprocket 83 and gap bridge hinge wheel 84 are arranged, sprocket wheel 81 before being equipped with on the preceding chain wheel-mounting sleeve 25, preceding sprocket wheel 81 is connected with gap bridge minor sprocket 83 by a big chain 110, gap bridge hinge wheel 84 is connected with back sprocket wheel 82 on the trailing wheel 73 by a gimmal 120, and handle folding device 130 is installed on the faucet 6.

Before junction between preceding facial canal permanent seat 21 mounting holes on vehicle body pipe permanent seat 31 mounting holes and the vehicle body pipe 1 on the facial canal 5 be by rivet or boltedly be connected axle center 210, and vehicle body pipe 1 can freely be rotated around being connected axle center 210 with preceding facial canal 5; Before connecting rod permanent seat 32 mounting holes and junction between two hole connecting rods, 61 1 end mounting holes on the facial canal 5 be by rivet or boltedly be connected axle center 220, and free to rotate; The mounting hole of two hole connecting rods, 61 other ends and junction between an end mounting hole of three hole connecting rods 62 be with rivet or boltedly be connected axle center 230, and free to rotate; Locate between connecting rod permanent seat 22 mounting holes on the mounting hole in the middle of the three hole connecting rods 62 and the vehicle body pipe to be with rivet or boltedly to be connected axle center 240, and free to rotate; Be with rivet between the mounting hole of three hole connecting rods, 62 other ends and spring link 63 1 end mounting holes or boltedly be connected axle center 250, and free to rotate; Be with rivet between the mounting hole of the connecting rod permanent seat 12 on the mounting hole of spring link 63 other ends and the tailstock pipe or boltedly be connected axle center 270, and free to rotate.

Modes such as gap bridge hinge wheel 84 and gap bridge minor sprocket 83 usefulness bolts are fixed in the mounting hole of tailstock pipe mounting sleeve 13 and vehicle body pipe rotation seat 23, the pivot center of gap bridge flywheel be tailstock pipe with the vehicle body pipe be connected axle center 291.The hinge wheel 84 of passing a bridge simultaneously is contained on the axle with gap bridge minor sprocket 83, gap bridge hinge wheel 84, gap bridge minor sprocket 83 relative fixed, and the gap bridge chain wheel assembly is free to rotate.Connect preceding sprocket wheel 81 and gap bridge minor sprocket 83 with big chain 110, connect gap bridge hinge wheel 84 and back sprocket wheel 82 with another root gimmal 120, can finish the manufacturing of driving system, and bigger transmitting ratio has guaranteed adopting less front and back wheel also can obtain fast speeds when reducing size.

Bumper 10 is spring installations that there is mounting hole at two ends.

Bracing or strutting arrangement 90 is to be welded with to connect folder 92 on a hold-down arm 91, and U-shaped clamp 93 and supporting blade 94 have two symmetrical concave points 95 on the U-shaped clamp 93.

With reference to Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the cushion part is in use fixing, concave point 95 on the U-shaped clamp 93 of bracing or strutting arrangement 90 and vehicle body pipe are locked and are gripped 24 and overlap, concave point 95 compressing vehicle body pipe locking folders 24 on the U-shaped clamp 93 inwardly clamp, the flange 96 that sees through groove on the vehicle body pipe 1 on the vehicle body pipe locking folder 24 is pushed down cushion pipe 4, makes it and can not move.

Cushion pipe 2 is installed in the vehicle body pipe 1, and cushion pipe 2 can slide to regulate cushion 3 height along vehicle body pipe 1 when folding.

With reference to Fig. 8, Fig. 9, Figure 10 and Figure 11, handle folding device 130 is to be welded with guide head 51 on faucet 6, with guide head 51 folding handles 131 is arranged, folding handles 131 is welded with eccentric rotary locking folder 132, on the eccentric rotary locking folder 132 positioned trigger 133 is arranged, positioned trigger 133 is equipped with torsion spring 135, the bottom of eccentric rotary locking folder 132 connects a hanging bolt 134, hanging bolt 134 heads have mounting hole and positioning step, hanging bolt 134 is packed in the faucet 6, in hanging bolt 134 bottoms tapered cup nut 136 and spring 137 are housed, faucet 6 bottoms have groove 139, and are installed in the preceding facial canal 5, load onto front fork D in front in the pipe, front fork 72 connects front-wheel 71, and front fork 72 can be managed in 5 in front and freely be rotated.Eccentric rotary on the folding handles 131 locking folder 132 mounting holes, trigger 133 mounting holes and hanging bolt 134 top mounting holes are linked together, load onto torsion spring 135 simultaneously.With hanging bolt 134 faucet 6 of packing into, load onto tapered cup nut 136 and spring 137 in hanging bolt 134 bottoms then.Faucet 6 is installed in front fork tube 72, faucet 6 can be in front fork 72 the slide control tap height, and the eccentric stiffener of the eccentric rotary locking folder 132 by folding handles 131 is realized the faucet location.

There is eccentric b in the eccentric rotary of the welding locking folder 132 mounting hole centers of circle on the folding handles 131, when folding handles 131 launches, eccentric b makes hanging bolt 134 that tapered cup nut 136 is upwards drawn, force the groove 139 of faucet 6 bottoms to open, prop up the inwall of front fork tube 72, produce very big friction force between faucet 6 and the front fork tube 72, make faucet 6 fixing; Folding handles 131 springs in the positioning step of hanging bolt 134 heads spanner 133 along being welded on after guide head 51 on the faucet 6 slides into shown position by torsion spring 135, makes the folding handles 131 can not be around 138 rotations, and whole tap part is in stationary state.

In the chain wheel-mounting sleeve 25 of vehicle body pipe 1, load onto preceding sprocket wheel 81 and ride 75,, can adopt collapsible riding in order to reduce folding back size.

Convenience when the utility model is structure when realizing moving like this relatively stable and folding:

The utility model in use, the people is sitting on the cushion 3, thereby people's gravity make bumper 10, hold-down arm device 90, tailstock pipe 4 and vehicle body pipe 1 form stable triangular structure make tailstock pipe 4 and vehicle body pipe 1, spring link 63 and connecting rod 62 structure also become metastable triangular structure, vehicle body pipe 1 can not rotated around point of attachment 291 with tailstock pipe 4.With relative fixed under the effect of bumper 10 and bracing or strutting arrangement 10 owing to three hole connecting rods 62 and two hole connecting rods 61, at this moment preceding facial canal 5, vehicle body pipe 1, three hole connecting rods 62, two hole connecting rods 61 are formed stable triangular structure, and facial canal 5 can 210 rotations around the axle center with vehicle body pipe 1 before making.

When frame part, cushion part, tap part are in stationary state, the utility model structure in use is very firm.

With reference to Figure 12, Figure 13, be to realize fast folding like this when bicycle is finished using:

Be connected 250 places, axle center with hand lower spring connecting rod 63 and three hole connecting rods 62, at this moment 250 places, axle center sink, drive three hole connecting rods 62 around the axle center 250, axle center 240 rotations, two hole connecting rods 61 are 220,230 rotations around the axle center, and further drive tailstock pipe 4 291 rotations,

vehicle body pipe

1 and 210 rotations of preceding facial canal 5 around the axle center around the axle center, bracing or strutting arrangement 90 and bumper 10 are around axle center rotation separately simultaneously, and the supporting blade 94 on the bracing or strutting arrangement 90 is thrown off cushion pipes 2.

U-shaped clamp 93 on the bracing or strutting arrangement 90 is after 290 rotations of axle center, concave point 95 above the U-shaped clamp 93 separates with vehicle body

pipe locking folder

24,24 resiliences after the compressing that loses concave point 95 on the U-shaped clamp 93 of vehicle body pipe locking folder, its flange a that sees through vehicle body pipe locking slot opens, no longer compress cushion pipe 4, cushion pipe 4 can be finished folding to lower slider in vehicle body pipe 1.

Because the big chain 110 of driving system, gimmal 120 are installed on the folded frame with preceding sprocket wheel 81, back sprocket wheel 82, gap bridge hinge wheel, gap bridge minor sprocket, framework is finished folding the time, it is folding that driving system has also been finished, driving system be folded into 291 doublings around the axle center.

The folding handles device 130 of tap part is folded into the planform as Figure 10, and part faucet 6 slide into before in the facial canal 5, reduce occupation space, finish folding.

Claims

1. portable folding bicycle, comprise vehicle body pipe (1), cushion pipe (2), cushion (3), tailstock pipe (4), preceding facial canal (5), faucet (6), front-wheel (71), front fork (72), trailing wheel (73), back vent (74) and foot-operated (75), it is characterized in that preceding facial canal permanent seat (21) is arranged on the vehicle body pipe (1), connecting rod permanent seat (22), tailstock pipe permanent seat (23), locking press from both sides (24) and chain wheel-mounting sleeve (25); Bumper permanent seat (11), spring link permanent seat (12), mounting sleeve (13) are arranged on the tailstock pipe (4); On the preceding facial canal (33) vehicle body pipe permanent seat (31), two hole connecting rod permanent seats (32) are arranged; Preceding facial canal permanent seat (21) connects vehicle body pipe permanent seat (31), two hole connecting rod permanent seats (32) connect an end of one two hole connecting rod (61), one end of the one three hole connecting rod of another termination (62) of two hole connecting rods (61), the interstitial hole of three hole connecting rods (62) is connected on the connecting rod permanent seat (22), the other end of three hole connecting rods (62) connects an end of a spring link (63), the other end of spring link (63) connects spring link permanent seat (12), bumper permanent seat (11) connects an end of bumper (10), the other end of bumper (10) connects bracing or strutting arrangement (90), bracing or strutting arrangement (90) connects locking folder (24), be equipped with on the mounting sleeve (13) and connect axle center (291), connect on the axle center (291) gap bridge minor sprocket (83) and gap bridge hinge wheel (84) are arranged, preceding sprocket wheel (81) is housed on the chain wheel-mounting sleeve (25), preceding sprocket wheel (81) connects with gap bridge minor sprocket (83) by a big chain (110), gap bridge hinge wheel (84) connects with back sprocket wheel (82) on the trailing wheel (73) by a gimmal (120), and handle folding device (130) is installed on the faucet (6).

2. a kind of portable folding bicycle according to claim 1, it is characterized in that described bracing or strutting arrangement (90) is to be welded with to connect folder (92) on a hold-down arm (91), U-shaped clamp (93) and supporting blade (94) have two symmetrical concave points (95) on the U-shaped clamp (93).

3. a kind of portable folding bicycle according to claim 1, it is characterized in that described handle folding device (130) is to be welded with guide head (51) on the faucet (6), with guide head (51) folding handles (131) is arranged, folding handles (131) is welded with eccentric rotary locking folder (132), on the eccentric rotary locking folder (132) positioned trigger (133) is arranged, positioned trigger (133) is equipped with torsion spring (135), the bottom of eccentric rotary locking folder (132) connects a hanging bolt (134), hanging bolt (134) head has mounting hole and positioning step, hanging bolt (134) is packed in the faucet (6), in hanging bolt (134) bottom tapered cup nut (136) and spring (137) are housed, faucet (6) bottom has groove (139), and is installed in the preceding facial canal (5).

4. a kind of portable folding bicycle according to claim 1 is characterized in that described bumper (10) is the spring installation that there is mounting hole at two ends.