CN201961467U

CN201961467U - Portable quick folding bicycle

Info

Publication number: CN201961467U
Application number: CN2011200164624U
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Taicang Chezhongbao Leisure Products Co Ltd
Priority date: 2011-01-19
Filing date: 2011-01-19
Publication date: 2011-09-07
Anticipated expiration: 2021-01-19

Abstract

A portable quick folding bicycle comprises a folding mechanism, a rear fork, a bicycle beam, a front head tube, a saddle, a handle bar, a front fork, front and rear wheels and a driving mechanism and is characterized in that the folding mechanism is a four-link structure taking a folding box as a basis and is locked or loosened through semicircular locking shafts; the rear fork is connected to the rear part of the folding box of the folding mechanism; the bicycle beam is rotationally connected with the folding box through a folding blade; the front head tube is connected with the front end of the bicycle beam; a saddle tube of the saddle is rotationally connected with the folding box; a connecting rod can be rotationally connected to the folding blade of the folding mechanism and the lower end of the saddle tube; the front fork can be rotationally connected to the front head tube; the handle bar comprises folding rising pipes and handlebars; the folding rising pipe is connected to the front fork; the front wheel is arranged on the front fork; the rear wheel is arranged on the rear fork; an intermediate shaft of the driving mechanism is connected to a five-way pipe; a crank and a crankset are connected to the intermediate shaft; a fly wheel is connected to the rear wheel; a chain rounds and is connected to the crankset and the fly wheel; and pedals are connected to the crank.

Description

Quick-folding portable bicycle

Technical field:

The utility model relates to a kind of folding bicycle, particularly a kind of opening or folding quick-folding portable bicycle easily rapidly.

Technical background:

Though occurred many kinds of folding bicycles in the market, finish but can within two seconds, fold or open, simultaneously can fold very for a short time again, after having folded, the folding bicycle that can put within the hand baggage nowhere to search, and the design people is at " quick-folding portable bicycle " (application number: 2009100508198), make folding bicycle folding again for a short time and fast though reached of first to file, but because reasons in structure, dropping into volume production still has the stable inadequately phenomenon of folding effect.

The utility model content:

The purpose of this utility model is will provide a kind of bicycle folding can be got not only fast but also for a short time, can be fit to the quick-folding portable bicycle of volume production again.The purpose of this utility model is achieved in that quick-folding portable bicycle, comprise fold mechanism, back vent, the car beam, the front pipe, vehicle seat, handlebar, front fork, front and back wheel and driver train, it is characterized in that: fold mechanism is a four-bar linkage structure based on folded box, and with semicircle lock shaft locking or unclamp, back vent is connected in the rear portion of the folded box of fold mechanism, the car beam is rotatably connected by folding leaf and folded box, the front pipe is connected with the front end of car beam, the seat pipe of vehicle seat is rotatably connected with folded box, connecting rod is rotationally connected with on the folding leaf of fold mechanism and the lower end of seat pipe, front fork is rotationally connected with on the pipe of front, handlebar comprises folding grip standpipe and handgrip, the folding grip standpipe is connected in front fork, front-wheel is installed on front fork, trailing wheel is installed on back vent, driver train comprises axis, crank, pedal, chain wheel, flywheel and chain, axis is rotationally connected with the five-way pipe that is connected on the folded box, crank and chain wheel are connected in axis, flywheel is connected in trailing wheel, chain is wire-wrapped on chain wheel and the flywheel, and pedal is connected on the crank.

The beneficial effects of the utility model are: adopted the four-bar linkage structure based on folded box, make the fold mechanism of quick-folding portable bicycle more firm, production technology is simpler, and quality is more stable during volume production, fold mechanism adopts the locking of semicircle lock shaft, makes this car outward appearance more attractive in appearance.

Description of drawings:

Fig. 1 is a complete vehicle structure scheme drawing of the present utility model

Fig. 2 is a fold mechanism structural representation of the present utility model

Fig. 3 is the folding back of a fold mechanism of the present utility model structural representation

Fig. 4 is the design sketch after folding grip standpipe of the present utility model folds

Fig. 5 is the folding design sketch that finishes of car load of the present utility model

Among the figure: 1-fold mechanism, 2-back vent, 3-car beam, 4-front pipe, 5-vehicle seat, 6-handlebar, 7-front fork, 81-front-wheel, 82-trailing wheel, 9-driver train, wherein fold mechanism 1 also comprises: 11-folded box, 12-folding leaf, 13-semicircle lock shaft, 14-lock handle, 15-button, 16-connecting rod, folded box 11 also comprises: 111-closedtop, 112-seat pipe backer, 113-five-way pipe, 114-shaft hole, 115-seat tubular axis hole, 116-lock shaft hole; Folding leaf 12 also comprises: 121-rotating shaft pipe, 122-engaging lug; Vehicle seat 5 also comprises: 51-seat pipe, 52-saddle; Handlebar 6 also comprises: 61-folding grip standpipe, 611-upright folder, 62-handgrip, driver train 9 also comprises: 91-axis, 92-crank, 93-pedal, 94-chain wheel, 95-flywheel, 96-chain.

The specific embodiment:

According to Fig. 1, Fig. 2, Fig. 3, described quick-folding portable bicycle comprises fold mechanism 1, back vent 2, car beam 3, front pipe 4, vehicle seat 5, handlebar 6, front fork 7, front-wheel 81, trailing wheel 82 and driver train 9;

Described fold mechanism 1, comprise folded box 11, folding leaf 12, semicircle lock shaft 13, lock handle 14, button 15 and connecting rod 16, described folded box 11 tops connect a closedtop 111, on the described closedtop 111 hole is arranged, in the described folded box 11, be connected with the seat pipe backer 112 of half sheet pipe shape, the bottom of described folded box 11, be connected with five-way pipe 113, the front portion of described folded box 11, have a pair ofly slightly with oblique shaft hole 114, the front upper part of described folded box 11 has a pair of lock shaft hole 116, the top of described folded box 11, have a pair of seat tubular axis hole 115, described folding leaf 12 is upper side band hook-types, following and described shaft hole 114 corresponding oblique connection one rotating shaft pipes 121, also connect an engaging lug 122 on the described folding leaf 12, the described rotating shaft pipe 121 of described folding leaf 12 is rotatably connected by the described shaft hole 114 to lock bolt and described folded box 11, and described seat pipe 51 is rotatably connected by the described seat tubular axis hole 115 to lock bolt and described folded box 11.

The rod connecting rod that described connecting rod 16 is double headed roller oscillating bearings, a lower end that is rotationally connected with described seat pipe 51 of described connecting rod 16, the other end of described connecting rod 16 is rotationally connected with on the described engaging lug 122 of described folding leaf 12.

Described semicircle lock shaft 13 is the semicircle steel rolling of one section two ends band screw, described lock handle 14 is metallic stamping pieces that both sides are bent into the tobacco pipe tee section, have semicircle orifice on two folding surfaces of described lock handle 14, the other end of described lock handle 14, have a button 15, described is button 15 Y-piece of the prominent point of head band, described button 15 is connected with described lock handle 14 by bolt, described semicircle lock shaft 13 penetrates in the described lock shaft hole 116 of the semicircle orifice of described lock handle 14 and described folded box 11, be screwed in the described screw at described semicircle lock shaft 13 two ends with two bolts then, on the described lock handle 14 button 15, with the hole corresponding matching on the described closedtop 111 of described folded box 11.

Described back vent 2 is connected in the rear portion of described folded box 11, described trailing wheel 82 is installed on the described back vent 2, the front end of described car beam 3 connects described front pipe 4, the rear end of described car beam 3 connects described folding leaf 12, described front fork 7 comprises front fork tube and wheel fork, described front fork 7 cooperates seven bowls and described front pipe 4 to be rotatably connected by front fork tube, and described front-wheel 81 is installed on described wheel of described front fork 7 and sticks.

Described vehicle seat 5 comprises seat pipe 51 and saddle 52, described seat pipe 51 is upper end band pipe clamps, the lower end band is to perforation and notch, the bottom of described seat pipe 51 also connects a tubular axis sleeve pipe, being connected of described tubular axis hole 115 of described seat pipe 51 and described folded box 11, be by described seat pipe 51 described seat tubular axis sleeve pipe with cooperate and be rotatably connected locking bolt, one of described connecting rod 16 with being connected of seat pipe 51 lower ends, be that described saddle 52 is installed on described and manages on 51 by described seat pipe 51 lower ends perforation is rotatably connected with the lock bolt is cooperated.

Described handlebar 6 comprises folding grip standpipe 61 and handgrip 62, described folding grip standpipe 61 also comprises upright folder 611, handle riser and Nei Sai pipe, upright folder 611 upper ends of described handle connect handle riser, plug pipe in the lower end connects, the described interior plug pipe of described folding grip standpipe 61, penetrate in the described front fork tube of described front fork 7, cooperate with the hanging bolt and the plug that expands again, described folding grip standpipe 61 can be connected with described front fork 7, the described handle of the folding grip standpipe 61 after the installation founds folder 611, and is at 45 oblique with described car beam 3.

Described driver train 9 comprises axis 91, crank 92, pedal 93, chain wheel 94, flywheel 95 and chain 96, described axis 91 is rotatably connected by axis accessory and described five-way pipe 113, the described chain wheel 94 of one described crank 92 inconjunction withs is installed on the right-hand member of described axis 91, one described crank 92 is installed on the left end of described axis, two described pedals 93 are installed on the two described cranks 92, described flywheel 95 is installed on the described trailing wheel 82, on described chain 96 solderless wrapped connections and described flywheel 95 and the described chain wheel 94.

Claims

1. quick-folding portable bicycle, comprise fold mechanism, back vent, the car beam, the front pipe, vehicle seat, handlebar, front fork, front and back wheel and driver train, it is characterized in that: fold mechanism is a four-bar linkage structure based on folded box, and with semicircle lock shaft locking or unclamp, back vent is connected in the rear portion of the folded box of fold mechanism, the car beam is rotatably connected by folding leaf and folded box, the front pipe is connected with the front end of car beam, the seat pipe of vehicle seat is rotatably connected with folded box, connecting rod is rotationally connected with on the folding leaf of fold mechanism and the lower end of seat pipe, front fork is rotationally connected with on the pipe of front, handlebar comprises folding grip standpipe and handgrip, the folding grip standpipe is connected in front fork, front-wheel is installed on front fork, trailing wheel is installed on back vent, driver train comprises axis, crank, pedal, chain wheel, flywheel and chain, axis is rotationally connected with the five-way pipe that is connected on the folded box, crank and chain wheel are connected in axis, flywheel is connected in trailing wheel, chain is wire-wrapped on chain wheel and the flywheel, and pedal is connected on the crank.

2. quick-folding portable bicycle according to claim 1, it is characterized in that: described fold mechanism, comprise folded box, folding leaf, the semicircle lock shaft, lock handle, button and connecting rod, described folded box top connects a closedtop, one hole is arranged on the described closedtop, in the described folded box, be connected with the seat pipe backer of half sheet pipe shape, the bottom of described folded box, be connected with the five-way pipe, the front portion of described folded box has a pair of slightly with oblique shaft hole, the front upper part of described folded box, have a pair of lock shaft hole, the top of described folded box has a pair of seat tubular axis hole, described folding leaf is the upper side band hook-type, the corresponding oblique connection one rotating shaft pipe of following and described shaft hole also connects an engaging lug on the described folding leaf, the described rotating shaft pipe of described folding leaf, be rotatably connected by the described shaft hole to lock bolt and described folded box, described seat pipe is rotatably connected by the described seat tubular axis hole to lock bolt and described folded box.

3. quick-folding portable bicycle according to claim 2, wherein said fold mechanism, it is characterized in that: described connecting rod is the rod connecting rod of double headed roller oscillating bearing, a lower end that is rotationally connected with described seat pipe of described connecting rod, the other end of described connecting rod is rotationally connected with on the described engaging lug of described folding leaf.

4. quick-folding portable bicycle according to claim 2, wherein said fold mechanism, it is characterized in that: described semicircle lock shaft is the semicircle steel rolling of one section two ends band screw, described lock handle is the metallic stamping pieces that both sides are bent into the tobacco pipe tee section, have semicircle orifice on two folding surfaces of described lock handle, the other end of described lock handle, have a button, described is button the Y-piece of the prominent point of head band, described the button be connected with described lock handle by bolt, described semicircle lock shaft penetrates in the described lock shaft hole of the semicircle orifice of described lock handle and described folded box, be screwed in the described screw at described semicircle lock shaft two ends with two bolts then, on the described lock handle button, with the hole corresponding matching on the described closedtop of described folded box.

5. quick-folding portable bicycle according to claim 1, it is characterized in that: described back vent is connected in the rear portion of described folded box, described trailing wheel is installed on the described back vent, the front end of described car beam connects described front pipe, the rear end of described car beam connects described folding leaf, described front fork comprises front fork tube and wheel fork, and described front fork cooperates seven bowls and described front pipe to be rotatably connected by front fork tube, and described front-wheel is installed on described wheel of described front fork and sticks.

6. quick-folding portable bicycle according to claim 1, it is characterized in that: described vehicle seat comprises seat pipe and saddle, described seat pipe is a upper end band pipe clamp, the lower end band is to perforation and notch, the bottom of described seat pipe also connects a tubular axis sleeve pipe, being connected of described tubular axis hole of described seat pipe and described folded box, be by described seat pipe described seat tubular axis sleeve pipe with cooperate and be rotatably connected locking bolt, one of described connecting rod with being connected of seat pipe lower end, be that described saddle is installed on described the pipe by described seat pipe lower end perforation is rotatably connected with the lock bolt is cooperated.

7. quick-folding portable bicycle according to claim 1, it is characterized in that: described handlebar comprises folding grip standpipe and handgrip, described folding grip standpipe also comprises upright folder, handle riser and Nei Sai pipe, the upright folder of described handle upper end connects handle riser, plug pipe in the lower end connects, the described interior plug pipe of described folding grip standpipe, penetrate in the described front fork tube of described front fork, cooperate with the hanging bolt and the plug that expands again, described folding grip standpipe can be connected with described front fork, the described handle of the folding grip standpipe after the installation founds folder, and is at 45 oblique with described car beam.