CN202175147U

CN202175147U - Foldable bicycle

Info

Publication number: CN202175147U
Application number: CN201120195720XU
Authority: CN
Inventors: 匡焱
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-08
Filing date: 2011-06-08
Publication date: 2012-03-28
Anticipated expiration: 2021-06-08

Abstract

The utility model discloses a foldable bicycle, which solves the problem of inconvenience in carrying and storage of an existing bicycle. The foldable bicycle is characterized in that a frame of the bicycle is in a foldable structure consisting of a front 'U'-shaped supporting rod (2) and a rear 'U'-shaped supporting rod (9), a rotary shaft is arranged in the middle of the front 'U'-shaped supporting rod (2), a handlebar (1) is arranged at one end of an upper supporting rod of the front 'U'-shaped supporting rod, a lower supporting rod of the front 'U'-shaped supporting rod is provided with a front fork, a bearing hole is arranged at one end of the lower supporting rod, a front wheel (3) is fixed on the front fork by a front axle (4), a shaft hole for mounting the rotary shaft in the middle of the front 'U'-shaped supporting rod (2) is arranged in the middle of the rear 'U'-shaped supporting rod (9), the 'U'-shaped supporting rod (9) is provided with a locking device (19), a fixing shaft (18) for mounting a saddle (8) is arranged at the back of an upper supporting rod of the rear 'U'-shaped supporting rod, and a driving system is arranged in the middle of a lower supporting rod of the rear 'U'-shaped supporting rod. The foldable bicycle has the advantages of attractive appearance, brightness in color, elegancy without flashy appearance, low dead weight, easiness in riding, high strength, novel style, low price, high competitiveness and the like, has wide market prospect and brings more social and economical benefits.

Description

Folding bicycle

Technical field

The utility model belongs to the vehicle, relates in particular to a kind ofly can fold the bicycle that stores.

Background technology

At present, the bicycle of selling on the market is various in style, like road cycling, and Track Cycling; All there are a tangible problem in bicycle for tourist etc., numerous bicycles, are exactly very convenient to carry; This makes troubles to the user undoubtedly, especially in the epoch of this high speed development, therefore; People press for a kind of simple in structure, use flexibly the vehicle of being convenient to store.

Summary of the invention

The purpose of the utility model is exactly in order to overcome the more existing drawbacks of bicycle, provides a kind of novel, and is simple for structure reasonable, can easily fold and launch, and carries with easy to use comfortable, very easily popularizes, has very much the new type foldable bicycle of market outlook.

The technical scheme of the utility model is: it partly is made up of kickstand, handlebar, front and back tire, saddle, drive system and brake system etc.; Kickstand is the folding structure that front and back " U " type strut bar constitutes, and is provided with rotating shaft in the middle of said preceding " U " type strut bar, and its upper rack posts end is provided with handlebar; Fix by handlebar anchor shaft and locking hinge; Lower fulcrum bar is provided with front fork, and its end is provided with bearing hole, by front wheel spindle front-wheel is fixed on the front fork; The axis hole of " U " type strut bar intermediate rotary shaft before the middle part of said back " U " type strut bar is provided with and installs, and be provided with latching device, its upper rack posts rear portion is provided with the anchor shaft that saddle is installed; Its lower fulcrum bar middle part is provided with drive system, and this drive system is made up of rotating shaft, sprocket wheel, crank, pedal, chain and flywheel, and the rotating shaft of drive sprocket is installed on the lower fulcrum bar; The two ends mounting crank of rotating shaft; The other end of crank is provided with the hole of placing pedal, and pedal is placed in crank end through the pedal axle, and back vent adopts with the lower bracket end that the sprocket wheel rotating shaft is set and flexibly connects; Trailing wheel is fixedly installed in the back vent end through hind axle; And the respective sprockets side is installed flywheel and back brake on hind axle, and parking brake before and after install respectively the handlebar both sides links to each other with the trailing wheel brake with the front-wheel brake through brake cable.

The beneficial effect of the utility model is: not only simple for structure reasonable; Can easily fold and launch; Have easy to carry with use advantages such as comfortable; And can bring life more easily to the user, and having extensive market prospects, its application will produce good social benefit and economic benefit.

Below in conjunction with accompanying drawing the utility model is described further.

Description of drawings

Fig. 1 is the running condition structural representation of the utility model;

Fig. 2 is the folded state structural representation of the utility model.

Among the figure: 1 is handlebar, and 2 is " U " type strut bar, and 3 is front-wheel, and 4 is front wheel spindle, and 5 is spoke, and 6 is crank; 7 is pedal, and 8 is saddle, and 9 is " U " type strut bar, and 10 is sprocket wheel, and 11 is chain; 12 is trailing wheel, and 13 is brake, and 14 is flywheel, and 15 is hind axle, and 16 are the locking hinge; 17 is the handlebar anchor shaft, and 18 is anchor shaft, and 19 is latching device, and 20 are rotating shaft, and 21 is the pedal axle.

The specific embodiment

As shown in Figure 1, kickstand adopts linear flow shape steel pipe manufacturing to form, and " U " type bracing frame 2 is a radius R 35mm steel pipe manufacturing before it; The centre is provided with rotating shaft; Its upper rack posts end is provided with handlebar 1, and fixing with locking hinge 16 by handlebar anchor shaft 17, lower fulcrum bar is provided with front fork; Its end is provided with bearing hole, by front wheel spindle 4 front-wheel 3 is fixed on the front fork.Back " U " type bracing frame 9 is a radius R 40mm steel pipe manufacturing; The axis hole of " U " type bracing frame 2 intermediate rotary shaft before the middle part is provided with and installs, and be provided with latching device 19, its upper rack posts rear portion is provided with the anchor shaft 18 that saddle 8 is installed; The wheel hub of front and back wheel all adopts the Stainless Steel material; Its radius is R180mm, and the tire of front and back wheel is to process with the antifriction rubber material, and its radius is R200mm.The lower fulcrum bar middle part of " U " type bracing frame 9 is provided with drive system in the back; This drive system is made up of rotating shaft 20, sprocket wheel 10, crank 6, pedal 7, chain 11 and flywheel 14; The rotating shaft 20 of drive sprocket 10 is installed on the lower fulcrum bar; The two ends mounting crank 6 of rotating shaft 20, the other end of crank 6 are provided with the hole of placing pedal 7, and pedal 7 is placed in crank 6 ends through pedal axle 21.Back vent adopts with the lower bracket end that the sprocket wheel rotating shaft is set and flexibly connects; Trailing wheel 12 is fixedly installed in the back vent end through hind axle 15; And respective sprockets 10 sides are installed flywheel 14 and back brake 13 on hind axle 15; Parking brake before and after install respectively handlebar 1 both sides links to each other with trailing wheel brake 13 with the front-wheel brake through brake cable.When implementing the utility model; Through of the rotation of the fixing of locking hinge 16 realization handlebars 1 with 90 °; Realize the certain angle rotation of saddle 8 through saddle 18 anchor shafts; Through of the rotation of the fixing of " U " type bracing frame 2 before latching device 19 realizations,, realize 180 ° of rotations of pedals 7 through pedal axle 21 through the lower fulcrum bar end of back " U " type strut bar 9 and upwards 60 ° the rotation of flexible connection realization back vent of back vent with 180 °.When people have tired out maybe need be with car stowage the time by bike, can be through rotation saddle 8,60 ° of rotation back vents, " U " type bracing frame 2 Rotate 180s ° before making, handlebar 1 Rotate 180 °, pedal 7 Rotate 180s are ° folding with it.Like this, people can hold handlebar 1 simply easily and push away (drawing) car and advanced, and also can it be stored in indoor suitable place.Have handsome in appearance, bright in luster, magnificent and original, from heavy and light, ride light, intensity is high, style is new, good and cheap, advantage such as competitive power is strong, has extensive market prospects, will bring good social benefit and economic benefit.

Claims

1. folding bicycle, it comprises kickstand, handlebar, front and back tire, saddle, drive system and brake system, it is characterized in that: kickstand is the folding structure that front and back " U " type strut bars (2,9) constitute; Be provided with rotating shaft before said in the middle of " U " type strut bar (2); Its upper rack posts end is provided with handlebar (1), and fixing by handlebar anchor shaft (17) and locking hinge (16), lower fulcrum bar is provided with front fork; Its end is provided with bearing hole, by front wheel spindle (4) front-wheel (3) is fixed on the front fork; The axis hole of " U " type strut bar (2) intermediate rotary shaft before the middle part of said back " U " type strut bar (9) is provided with and installs; And be provided with latching device (19), and its upper rack posts rear portion is provided with the anchor shaft (18) that saddle (8) is installed, and its lower fulcrum bar middle part is provided with drive system; This drive system is made up of rotating shaft (20), sprocket wheel (10), crank (6), pedal (7), chain (11) and flywheel (14); The rotating shaft (20) of drive sprocket (10) is installed on the lower fulcrum bar, the two ends mounting crank (6) of rotating shaft (20), and the other end of crank (6) is provided with the hole of placing pedal (7); Pedal (7) is placed in crank (6) end through pedal axle (21); Back vent adopts with the lower bracket end that the sprocket wheel rotating shaft is set and flexibly connects, and trailing wheel (12) is fixedly installed in the back vent end through hind axle (15), and goes up respective sprockets (10) side at hind axle (15) flywheel (14) and back brake (13) are installed; Parking brake before and after install respectively handlebar (1) both sides links to each other with trailing wheel brake (13) with the front-wheel brake through brake cable.