CN2034568U

CN2034568U - Adjustable folding miniature bicycle

Info

Publication number: CN2034568U
Application number: CN 87217244
Authority: CN
Inventors: 钟超英
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-12-31
Filing date: 1987-12-31
Publication date: 1989-03-22

Abstract

The utility model belongs to the improvement of a bicycle. The vehicle body of the bicycle is divided to front and rear two portions which are connected telescopically by a square cylinder telescopic clamp sleeve. Handlebars, the extension rod of the head of the bicycle, the seat of the bicycle and the extension rod of the seat of the bicycle are connected by a dismountable circular pipe spring pin. A pedal front axle and a pedal rear axle are adopted by pedal plates and foldably connected by a hinge plate which can be turned for 90 DEG. Solid wheels are adopted by front and rear wheels, and thus the bicycle body can be quickly shrunk by hand without any tools when the bicycle is not ridden. The pedal plates are folded. The handlebars, the extension rod of the head of the bicycle, the seat of the bicycle and the extension rod of the seat of the bicycle are folded and respectively installed on prearranged positions to make the integral bicycle shrunk to an oblong body of (0.45M*0.35M*0.2M) which is favorable for carrying.

Description

Adjustable folding miniature bicycle

The utility model belongs to a kind of improvement of bicycle.

Along with the development of socialist construction, human communication is more frequent, and there is thousands of people in the whole nation among journey every day, behind the station of theirs everywhere, harbour and the airport, total hope arrives the destination early, but often owing to the deficiency of city, cities and towns mass transportation facilities, is difficult to make one's wish fulfilled.The utility model provides and can stretch, folds, installs and removes portable miniature bike, makes the travelling people just can be assembled into the bicycle that can travel rapidly everywhere, realizes going to the destination by bike, avoids the restriction of public transport deficiency.And can solve at waiting room implementation Li Wenti.

Characteristics of the present utility model are: when not riding, can shrink vehicle body, the Folding pedal plate, tear imperial handlebar, headstock extension bar, vehicle seat and vehicle seat extension bar open, and be contained in preposition separately, and make the miniature one-tenth cuboid of full car (0.45 meter * 0.35 meter * 0.2 meter), be easy to carry.

Its structure, stretch, fold, install and remove into miniature can be referring to total figure Fig. 1, Fig. 2 and local structure schematic diagram Fig. 3, Fig. 4, Fig. 5.

This car adopts general chain gearing, driving big gear wheel 17 by manpower (riding) rotates, driving flywheel 19 by chain 18 rotates, advanced by the ratchet drives trailing wheel, big gear wheel and rear wheel are overlapping, and front and back wheel adopts solid wheel, after cross member 1(is referring to Fig. 1) be that a rectangular metal pipe is made, the below is welded with rear wheel fork 2 and molar wheel support 15, and the top, middle part is provided with pipe spring joint 6 and is connected with vehicle seat extension bar 14, and vehicle seat extension bar 14 is connected with vehicle seat 5 by pipe spring joint 6.The horizontal direction of after cross member 1 is provided with and inserts handlebar 11 usefulness when handlebar socket aperture 8 is used for miniature type.Vehicle seat extension bar socket 12 of the left surface of after cross member 1 weldering is used for the vehicle seat extension bar to be inserted this seat when miniature.After cross member 1 front lower place is welded with square tube telescopic card 7 and is connected with front cross rail 3, and front cross rail 3 the place aheads are welded on the front-wheel member 16, and the left front of front-wheel member 16 is welded with the usefulness of inserting the headstock extension bar when headstock extension bar socket 9 is used for miniature type.Front-wheel member 16 tops are connected with headstock extension bar 4 by pipe spring pin joint 6, and headstock extension bar 4 upper ends are connected with handlebar 11 by pipe spring pin joint 6.The 10th, crank throw and stretcher 13 spiral shells link and connect, the driving of this car and ride to sail with Regular Bicycle and be as good as.

Fig. 3 is front and back crossbeam telescopic construction schematic diagrams, 20 are opened by 21 spring tensions for square bayonet lock, 22 grades of pins are to be welded in front cross rail 3(Fig. 1) the shelves pin of afterbody below, when just using state, front cross rail 3 is in the posterior end stop position that shelves pin 22 is stuck in the rectangle guide hole of molar wheel support 15 tops, 20 side's bayonet locks then are stuck on the both sides front end of square tube telescopic card 7, and crossbeam maintains static before and after making.When miniature type, only with hand refers to square bayonet lock 20 is pressed into to front cross rail 3 outerplanars, front cross rail 3 can be pushed away and be reduced to the shortest position.

Fig. 4 is the schematic diagram of structure of pipe spring pin joint 6.The 23rd, the circle bayonet lock is loaded in joint (front-wheel member 16 upper ends, handlebar 11 middle parts, vehicle seat 5 lower ends, the vehicle seat extension bar 14 lower ends) pipe.The 24th, spring will be justified bayonet lock 23 and open, when car is in running condition, in corresponding two holes, two members are formed a fixed connection on circle bayonet lock 23 insertion joint (headstock extension bar 4 lower ends and upper end, after cross member 1 middle part, vehicle seat extension bar 14 upper ends) the pipe walls.When miniature type, only with hand refers to that circle bayonet lock 23 is pressed into interior pipe periphery can split out.This car 4 place's pipe spring pin joints 6 all adopt this aufbauprinciple.

Fig. 5 first and second is structure and folding schematic diagrams of stretcher 13.The 25th, pedal shelves cap, be used for shelves and live running-board bracket 27, one end of pedal front axle 26 is connected with crank throw with the spiral shell button, the rear end is connected with pedal rear axle 33 with pin 28 by two blocks of rotating hinge plates 29, one end of antero posterior axis adapter plate 34 is connected with pedal front axle 26 with screw pin 36, the other end is connected with pedal rear axle 33 with T shape screw 35, and unlikely antero posterior axis is folding during running condition.When miniature type, 35T type screw to be outwarded winding, front and back can be folded into second figure state around semi arch.And will fold adapter plate 30 and take apart with T shape screw 31 and be tightened in the screw 8 of pedal rear axle 33.Pedal rear axle 33 and crank throw 10 are maintained static.

Full car its state of miniature back such as Fig. 2.

Claims

1, a kind of telescopic folding mounting or dismounting miniature bike is characterized in that front and rear wheel adopts solid wheel; Two partly before and after vehicle body was divided into, by after cross member (1) and front cross rail (3) with being connected that square tube flexible ferrule (7) can be stretched or contract; Vehicle seat (5) and vehicle seat extension bar (14), vehicle seat extension bar (14) everywhere all adopts removable pipe spring pin joint (6) method to be connected with headstock extension bar (4) and headstock extension bar (4) with front-wheel member (16) with after cross member (1), handlebar (11); Stretcher adopts pedal front axle (26) to cut with scissors collapsible connections of plate (29) with pedal rear axle (33) by rotating 90 °;

2, according to the described miniature bike of claim 1, it is characterized in that vehicle seat (5) and vehicle seat extension bar (14), vehicle seat extension bar (14) and after cross member (1), front-wheel member (16) and headstock extension bar (4) and headstock extension bar (4) and dismantled and assembled connection of handlebar (11) are to be contained in little pipe two apertures of joint by circle bayonet lock (23) spring (24), joint great circle tube wall occupies corresponding two apertures and cooperates and realize.

3, according to the described miniature bike of claim 1, it is characterized in that after cross member (1) and the flexible of front cross rail (3) are to be loaded in two apertures of front cross rail square tube wall by square bayonet lock (20) and spring (1), and outstanding outside is stuck on square tube telescopic card (7) front side edge, and is stuck in by being welded in the terminal backing pin (22) of front cross rail (3) that the rectangle guide hole lower end of molar wheel support (15) realizes.

4, according to the described miniature bike of claim 1, it is characterized in that folding stretcher (13) is that pedal front axle (26) is connected pedal rear axle (33) by two blocks of rotating hinge plates (29) with two pins (28), and can be around folding 90 ° of semi arch, antero posterior axis adapter plate (34) makes pedal front axle (26) become to be connected with one heart with screw pin (36) and T shape screw (35).