CN202491887U

CN202491887U - Single fork rod type quick folding portable bicycle

Info

Publication number: CN202491887U
Application number: CN2011204593351U
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Taicang Chezhongbao Leisure Products Co Ltd
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-10-17
Anticipated expiration: 2021-11-18

Abstract

A single forked rod type quick folding portable bicycle comprises a folding base, a front frame, a rear fork rod, a seat, a front fork rod, a handlebar, a front wheel, a rear wheel, a shock absorber and a driving mechanism. The folding base comprises a folding box, a front part, a lower seat pipe, a connecting rod, a knob bolt, a double-wedged bolt, a five-way pipe, a pipe rest and the shock absorber. The front frame consists of a beam pipe and a front head pipe, the seat consists of an upper seat pipe and a saddle, the handlebar consists of a folding handle stem and a handle, and the driving mechanism comprises a center shaft, two cracks, two pedals, a front-level large crankset, a front-level small crankset, a rear-level crankset, a front-level chain, a rear-level chain and a flywheel. The front frame is connected with the front part of the folding base, the rear fork rod is connected with the rear of the folding base, the front fork rod is connected with the front head pipe of the front frame, the handlebar is connected with the front fork rod, the front wheel is mounted on the front fork rod, and the rear wheel is mounted on the rear fork rod.

Description

Quick-folding single tine bar portable bicycle

Technical field

The utility model relates to a kind of folding bicycle, particularly a kind of quick-folding single tine bar portable bicycle.

Technical background

The style of folding bicycle is numerous in the market, but general folding bicycle folding after, volume is still very big; The comfort feature that carries is very poor, though the folding bicycle that has can fold a little bit smallerly a little, its folding rate is very slow; The design people is design-calculated " quick-folding portable bicycle " formerly; Though part solved folding speed issue with folding after the volume problem, this utility model is width broad still in folding back, the integraty after folding not enough.

The utility model content

The purpose of the utility model is that a kind of more compact structure, the better quick-folding single tine of folding effect bar portable bicycle will be provided.The purpose of the utility model is achieved in that quick-folding single tine bar portable bicycle; Comprise folding pedestal, side arm, rear fork, vehicle seat, front fork stem, handlebar, front-wheel, trailing wheel and driver train; It is characterized in that: folding pedestal is leaned on by folded box, former piece, a following pipe, connecting rod, knob bolt, folding wedge tongue, five-way pipe, pipe and Shock absorber constitutes, and side arm is made up of beam pipe and front pipe, and vehicle seat is made up of seat of honour pipe and saddle; Handlebar is made up of folding grip standpipe and handgrip; Driver train is made up of axis, two cranks, two pedals, prime large toothed disk, the little chain wheel of prime, back level chain wheel, prime chain, back level chain and flywheel, and side arm is connected with the former piece of folding pedestal, and rear fork is connected with the rear portion of folding pedestal; Front fork stem is connected with the front pipe of side arm; Handlebar is connected with front fork stem, and front-wheel is installed on front fork stem, and trailing wheel is installed on rear fork.

The beneficial effect of the utility model is: the right side that the left side of rear fork is connected trailing wheel, front fork stem connects front-wheel, in the front lower place of folded box, and has a little oblique the shaft hole design of folded box; Can let the folding back of the utility model front and back wheel close up discharging, make its volume after folding littler, adopt the driver train of two-stage speedup; Make the flywheel needn't be too little, can let the rear axle overstriking and make trailing wheel firm, adopt elastomeric material as Shock absorber; Make shock-proof effect better, and cost is lower.

Description of drawings

Fig. 1 is the section of structure of the utility model.

Fig. 2 is the appearance figure of the utility model.

Fig. 3 is the constructional drawing of the driver train of the utility model two-stage speedup.

Fig. 4 is the utility model handlebar folding effect figure.

Fig. 5 is the utility model vehicle body folding process figure.

Fig. 6 is the folding design sketch that finishes of the utility model.

Among the figure: 1---folding pedestal, 2---side arm, 3---rear fork, 4---vehicle seat, 5---front fork stem, 6---handlebar, 7---front-wheel, 8---trailing wheel, 9---driver train; Wherein folding pedestal 1 also comprises: 11---folded box, and 12---former piece, 13---following pipe, 14---connecting rod, 15---the knob bolt, 16---the folding wedge tongue, 17---five-way pipe, 18---pipe leans on 19---Shock absorber; Side arm 2 also comprises: 21---the beam pipe, and 22---the front pipe; Vehicle seat 4 also comprises: 41---seat of honour pipe, and 42---saddle, handlebar 6 also comprises: 61---the folding grip standpipe, 62---handgrip; Driver train 9 also comprises: 91---axis, and 92---crank, 93---pedal, 94---the prime large toothed disk, 95---the little chain wheel of prime, 96---back level chain wheel, 97---the prime chain, 98---back level chain, 99---flywheel.

The specific embodiment

According to Fig. 1, Fig. 2, Fig. 3, Fig. 5, described quick-folding single tine bar portable bicycle comprises folding pedestal 1, side arm 2, rear fork 3, vehicle seat 4, front fork stem 5, handlebar 6, front-wheel 7, trailing wheel 8 and driver train 9;

Described folding pedestal 1 comprises that folded box 11, former piece 12, following pipe 13, connecting rod 14, knob bolt 15, folding wedge tongue 16, five-way pipe 17, pipe lean on 18 and Shock absorber 19.

Described folded box 11 is that a sheetmetal strikes out the top connection; The following all box-shaped component of opening in front and back; Said folded box 11 preceding down, in go up, in down and the rear all have perforation; Wherein said preceding position down perforation is had a little is oblique, and hole, position, described middle and lower part is the connecting bore of five-way pipe 17, and hole, described rear is for connecting the connecting bore of rear fork 3; There is a spill gap in the front at said folded box 11 tops along the middle part, respectively there is an interlocking hole on the both sides of said folded box 11 spill gap.

Described former piece 12 is the mountain words that become to be sidelong, and said former piece 12 top cross are arranged with three holes, and the mesopore in said three holes is the last knock hole of said knob bolt 15; Said three holes two lateral opening be the guide hole of said folding wedge tongue 16; Said former piece 12 middle parts and the described knock hole of going up are to there being the following knock hole of a knob bolt 15, and the last knock hole of said former piece 12 and described knock hole down penetrate described knob bolt 15, described knob bolt 15; Be a bolt the head on be connected with the plastics handgrip of screwing; Also twist on the described knob bolt 15 and be connected to described folding wedge tongue 16, described folding wedge tongue 16 be in the middle of a screw, both sides are respectively with the parts of a wedge-like tongue; Described folding wedge tongue 16 is directed in the guide hole of said former piece 12; And described folding wedge tongue 16 interlockings respectively have a hole before and after the bottom of said former piece 12 in two interlocking holes of said folded box 11, the preceding hole of said former piece 12 bottoms has a little oblique; The oblique hole of said former piece 12 is corresponding with the oblique hole at said folded box 11 preceding positions down; And through the lock bolt is connected, the metapore of said former piece 12 bottoms is through being connected with described connecting rod 14 the lock bolt, and said former piece 12 has a groove with the junction of said connecting rod 14.

Described connecting rod 14 is parts of double headed roller oscillating bearing, and of described connecting rod 14 is connected with described former piece 12, and the other end is through managing 13 times and be rotatably connected to boring a hole with described following the lock bolt.

Described following pipe 13 is metal circular tubes; The bottom has break slot; The bottom has two pairs up and down side by side to perforation, and the top has a pipe clamp, and going up of said following pipe 13 passed through the lock bolt perforation; With the position, middle and upper part of said folded box 11 perforation is rotatably connected, 41 sockets are managed through the pipe clamp and the described seat of honour in said following pipe 13 tops.

Described pipe leans on 18 to be sheetmetals of camber concave surface, and said pipe leans on 18 the arc-shaped concave and the circle of said following pipe 13 directly to be complementary, said pipe by 18 and said folded box 11 be welded in the top of said five-way pipe 18; The back upper place of said folded box 11 also connects Shock absorber 19; Described Shock absorber 19 comprises front shock-proof device seat, back shock-absorbing seat and antivibration pad; Described front shock-proof device seat is welded in the back upper place of said folded box 11, and described back shock-absorbing seat is welded in the front upper part of rear fork 3, and described antivibration pad is that rubber or other nonmetallic elastomeric material are processed; Described antivibration pad becomes cylindric, and described antivibration pad is connected between described front shock-proof device seat and the described back shock-absorbing seat.

Described rear fork 3 is the metal tubes that curve wavy bending; Front end welds a wire loop; Left side, rear end captive joint one rear axle; The connecting bore of the rear of bolt and the said folded box 11 of the wire loop of said rear fork 3 through a tape spool head is rotatably connected, and described trailing wheel 8 is installed on the said rear axle on the described rear fork 3.

Described side arm 2 comprises beam pipe 21 and front pipe 22, and the rear end of said beam pipe 21 and described former piece 12 weld.

Described front fork stem 5 is right side, metal tube lower end captive joint one front axles that curve wavy bending, and the top of said front fork stem 5 is rotatably connected through seven bowls and described front pipe 22, and described front-wheel 7 is installed on the said front axle of said front fork stem 5.

Described vehicle seat 4 comprises seat of honour pipe 41 and saddle 42, and described saddle 42 is installed on the top of said seat of honour pipe 41.

Said handlebar 6 comprises folding grip standpipe 61 and handgrip 62, and described folding grip standpipe 61 comprises that lower component, upper-part, inside extending tube, handle riser, screw cylinder and band are bolt; Described lower component; Be that a sheetmetal strikes out semicircle pocket flat bottomed dustpan shape; There is the flange auricle both sides, bottom surface of said lower component, and are with holes on the auricle, the gap of the semicircle pocket top band one U font of said lower component; A circular hole is with in the bottom of said lower component, and the circular hole of said lower component bottom welds described inside extending tube; Described upper-part is the cylindrical part of inferior horn zone circle, said upper-part and described handle riser socket; The circle of said upper-part is rotatably connected through two auricles to lock bolt and said lower component; Said upper-part and said handle riser socket place have perforation, penetrate described screw cylinder to turning in the perforation, and there is a slotted hole vertical position to perforation of said upper-part and said handle riser socket place; Slotted hole on said is corresponding with the gap of the U font of said bottom; Described band is bolt, is to be connected with the plastics handgrip on the head of a bolt, and described band penetrates bolt in the slotted hole of said upper-part and handle riser socket place; Be screwed in the screw of said screw cylinder, the top of said folding grip standpipe 61 connects described handgrip 62 again.

The described driver train 9 of

; Comprise axis 91, two cranks 92, two pedals 93, prime large toothed disk 94, prime denticle dish 95, back level chain wheel 96, prime chain 97, back level chain 98 and flywheel 99; Described axis 91 is installed in the described five-way pipe 18 through the axis accessory; Described two cranks 93 are installed on two of said axis 91; Described prime large toothed disk 94 is fixed with described right crank 92; Described two pedals 93 are installed on said two cranks 92; Described prime denticle dish 95 and described back grade chain wheel 96 are connected with beam barrel; Be inlaid with two bearings in the described beam barrel; Described prime denticle dish 95 and described back level chain wheel 96 be through the bearing in the said beam barrel, is socketed on the spindle nose of said folded box 11 and the said tape spool hook bolt of rear fork 3, and described flywheel 99 is installed on the right of said trailing wheel 8; Described prime chain 97 is wire-wrapped in said prime large toothed disk 94 and coils on 95 with said prime denticle, and a described back level chain 98 is wire-wrapped on said back level chain wheel 96 and the described flywheel 99.

Claims

1. a quick-folding single tine bar portable bicycle comprises folding pedestal, side arm, rear fork, vehicle seat, front fork stem, handlebar, front-wheel, trailing wheel, Shock absorber and driver train, it is characterized in that: folding pedestal is leaned on by folded box, former piece, a following pipe, connecting rod, knob bolt, folding wedge tongue, five-way pipe, pipe and Shock absorber constitutes; Side arm is made up of beam pipe and front pipe; Vehicle seat is made up of seat of honour pipe and saddle, and handlebar is made up of folding grip standpipe and handgrip, and driver train is made up of axis, two cranks, two pedals, prime large toothed disk, the little chain wheel of prime, back level chain wheel, prime chain, back level chain and flywheel; Side arm is connected with the former piece of folding pedestal; Rear fork is connected with the rear portion of folding pedestal, and front fork stem is connected with the front pipe of side arm, and handlebar is connected with front fork stem; Front-wheel is installed on front fork stem, and trailing wheel is installed on rear fork.

2. quick-folding single tine bar portable bicycle according to claim 1; Wherein said folding pedestal is characterized in that: described folded box is that a sheetmetal strikes out the top and connects, box-shaped component of opening all under the front and back; Said folded box preceding down, in go up, in down and the rear all have perforation; Wherein said preceding position down perforation is had a little is oblique, and hole, position, described middle and lower part is the connecting bore of five-way pipe, and hole, described rear is for connecting the connecting bore of rear fork; There is a spill gap in the front at said folded box top along the middle part, respectively there is an interlocking hole on the both sides of said folded box spill gap.

3. quick-folding single tine bar portable bicycle according to claim 2 is characterized in that: described former piece is the mountain word that becomes to be sidelong, and said former piece top cross is arranged with three holes; The mesopore in said three holes is the last knock hole of said knob bolt; Said three holes two lateral opening be the guide hole of said folding wedge tongue, said former piece middle part and the described knock hole of going up be to should there being the following knock hole of a knob bolt, the last knock hole of said former piece and the described knock hole that descends penetrate described knob bolt; One hole is respectively arranged before and after the bottom of said former piece; The preceding hole of said former piece bottom has a little oblique, and the oblique hole of said former piece is corresponding with the oblique hole at the preceding position down of said folded box, and through the lock bolt is connected; The metapore of said former piece bottom is through connecting the connecting rod of stating, and the junction of said former piece and said connecting rod has a groove.

4. quick-folding single tine bar portable bicycle according to claim 2; It is characterized in that: described folding wedge tongue is a middle screw; Both sides are respectively with the parts of a wedge-like tongue; Described folding wedge tongue is directed in the guide hole of said former piece, and described folding wedge tongue interlocking is in two interlocking holes of said folded box.

5. quick-folding single tine bar portable bicycle according to claim 2; It is characterized in that: described connecting rod is the parts of double headed roller oscillating bearing; One of described connecting rod is connected with described former piece, and the other end is through managing and be rotatably connected to boring a hole with described following the lock bolt.

6. quick-folding single tine bar portable bicycle according to claim 2; It is characterized in that: described following pipe is a metal circular tube, and the bottom has break slot, and the bottom has two pairs up and down side by side to perforation; The top has a pipe clamp; Going up perforation through to the lock bolt of said following pipe is rotatably connected to perforation with the position, middle and upper part of said folded box, manages the top and connects through pipe clamp and described seat of honour pipe box for said following.

7. quick-folding single tine bar portable bicycle according to claim 2; It is characterized in that: described Shock absorber comprises front shock-proof device seat, back shock-absorbing seat and antivibration pad; Described front shock-proof device seat is welded in the back upper place of said folded box, and described back shock-absorbing seat is welded in the front upper part of rear fork, and described antivibration pad is that rubber or other nonmetallic elastomeric material are processed; Described antivibration pad becomes cylindric, and described antivibration pad is connected between described front shock-proof device seat and the described back shock-absorbing seat.

8. quick-folding single tine bar portable bicycle according to claim 1; It is characterized in that: described rear fork is the metal tube that curves wavy bending; Front end welds a wire loop; The connecting bore of the rear of rear end left side captive joint one rear axle, the wire loop of said rear fork bolt and the said folded box through a tape spool head is rotatably connected, and described trailing wheel is installed on the said rear axle on the described rear fork; Described front fork stem is right side, metal tube lower end captive joint one front axle that curves wavy bending, and the top of said front fork stem is rotatably connected through seven bowls and described front pipe, and described front-wheel is installed on the said front axle of said front fork stem.

9. quick-folding single tine bar portable bicycle according to claim 1; Wherein said driver train; It is characterized in that: described axis is installed in the described five-way pipe through the axis accessory, and described two cranks are installed on two of said axis, and described prime large toothed disk and described right crank are fixed; Described two pedals are installed on said two cranks; The little chain wheel of described prime is connected with beam barrel with described back level chain wheel, is inlaid with two bearings in the described beam barrel, and little chain wheel of described prime and described back level chain wheel are through the bearing in the said beam barrel; Be socketed on the spindle nose of said tape spool hook bolt of said folded box and rear fork; Described flywheel is installed on the right of said trailing wheel, and described prime chain is wire-wrapped on said prime large toothed disk and the little chain wheel of said prime, and described back level chain is wire-wrapped on said back level chain wheel and the described flywheel.