CN2035729U

CN2035729U - Multi-function collapsible bicycle

Info

Publication number: CN2035729U
Application number: CN 88212000
Authority: CN
Inventors: 宋云鹏
Original assignee: SHANGHAI ASTRONAVIGATION ASSOCIATION
Current assignee: SHANGHAI ASTRONAVIGATION ASSOCIATION
Priority date: 1988-07-02
Filing date: 1988-07-02
Publication date: 1989-04-12

Abstract

The utility model provides a multi-function folding bicycle. The beam of the multi-function folding bicycle is divided into an inner sleeve beam and an outer sleeve beam; the outer sleeve beam comprises a front beam, a main beam and a back beam; the inner sleeve beam comprises a front inner beam and a back inner beam. When the utility model is folded, a band ring screw is loosened, the inner sleeve beam is drawn out and is rotated, the front wheel and the back wheel of the bicycle are folded together, and a front storage rack and a back storage rack are locked tightly. The utility model has the advantages of convenient fold, light weight, small size, easy carry and easy assembly. The multi-function folding bicycle has multi-use and can be used as a tetra-wheel barrow, a tri-wheel barrow, a side-hopper tricycle, etc. The multi-function folding bicycle can be widely used for traffic, tourism and family.

Description

Multi-function collapsible bicycle

The utility model relates to a kind of folding of bicycle.

Existing Folding Bicycle, mostly function singleness can not be locked after folding, and can not shove along, or make transportation means, and this makes troubles to travelling, has limited the range of use of folding bicycle.

The purpose of this utility model provides a kind of multifunction folding bicycle, and folding back two-wheeled is concordant, the locking of front and back shelf, and can shove along, serve many purposes.

The purpose of this utility model is achieved in that a kind of multifunction folding bicycle that includes folded beam, wheel, handle, shelf, front vehicle frame, spider composition.Its folded beam divides inside and outside two layers, and the overcoat beam casing is on Nei Taoliang.The overcoat beam is made up of front-axle beam, girder, the back rest, and interior cover beam is made up of preceding inner beam, back inner beam.Preceding inner beam and front connector welding, back inner beam and back joint welding are welded with nut on the girder, and interior overcoat beam tightens up with nut mutually by ring bolt.

Fig. 1 is an overall schematic of the present utility model.

Fig. 2 is the constructional drawing of folded beam.

Fig. 3 is front and back shelf latching device scheme drawings.

Fig. 4 is a spike wheel apparatus site plan.

Fig. 5 is the four-wheeled scheme drawing after folding.

Fig. 6 is the scheme drawing that little three wheel barrows are made at this car rear portion.

Fig. 7 is the three-wheel vehicle scheme drawing of this car rim sidecar.

The utility model is described in further detail below with reference to drawings and Examples.

With reference to Fig. 2, the utility model folded beam adopts inside and outside two layers of cover beam mode, and it is by front-axle beam 2, girder 3, and the overcoat beam that the back rest 5 is formed, preceding inner beam 9, the Nei Taoliang of back inner beam 7 compositions, the overcoat beam casing is on Nei Taoliang.In cover groove 10 is arranged on the beam, it can make Nei Taoliang move forward and backward, and changes the length of vehicle body or folding.There is notch 11 side, two ends of girder 3, makes girder have elasticity, is convenient to tighten up with interior cover beam.Front connector 1 is sleeved on the front vehicle frame, and an end welds mutually with preceding inner beam 9.Back joint 6 is sleeved on the spider, and an end welds mutually with back inner beam 7, is welded with two nuts 8 on the girder 3, and interior overcoat beam tightens up with nut 8 mutually by two ring bolts 4.

When folding, ring bolt 4 is unclamped,, make ring bolt 4 slide into head, and be the center with ring bolt 4 along the groove 10 of cover beam in the front and back cover beam 9,7 each outside extraction in the front and back.Make except that girder interior overcoat beam each towards the folding direction half-twist, be converted into folded form as shown in Figure 5.

With reference to Fig. 3, after this car is folding, to lock by the front and back shelf, it is by preceding shelf 12, Connecting jont 13, guided missile formula connecting rod 16, back shelf 17, screw 18, the latching device of nut 19 compositions.

During locking, earlier that guided missile formula connecting rod 16 is vertical around pin 14, vertical shelf plane, and then change 90 ° towards the horizontal folding direction around pin 15, by screw 18, nut 19 tightens up guided missile formula connecting rod 16.The front and back shelf link to each other with spider with front vehicle body respectively by screw 20.Another effect of preceding shelf is to put article in the car front.

With reference to Fig. 4, be welded with axis ear 22 on the central axis seat 21 of heel brace wheel apparatus by spider, spike 27 is equipped with two Casters 29 and forms on the spike.Each hole on the axis ear 22 is the position of laying spike 27, and spike is fixed in the hole by pin 26 and spring 28, and Caster has not same-action on each hole site.Hole 23 is positions that car is used as kiddie car after folding, and hole 24 is garage positions when advancing, and hole 25 is the positions when stopping, and hole 26 is the positions when begining to learn bicycle, and when car skewed, Caster contacted to earth, and was the formula of standing like the legs of a tripod, and was difficult for falling down.

With reference to Fig. 5, after the car beam was folding, shelf before and after the locking put down and support Caster 29, just become a four-wheel go-cart.During tourism, cabin baggage can be advanced station, harbour, airport, replace baggage car.Pack up Caster 29, can directly carry by bus.Utilize two ring bolts 4, the dress braces can be hung piggyback on ring.

With reference to Fig. 6, if ring bolt 4 is all unclamped, slough front vehicle frame, put down and support Caster 29, just become little three wheel barrows.Can be used for buying coal, grain, supermarket buys vegetables etc.If the people is sitting on the shelf of back, step sole, can carry out the skill match of kiddie car.If stand in singlehanded walker beam on the rear axle, one hand shakes stretcher, can do single wheel stunt racing car.

With reference to Fig. 7, this car installs sidecar support 30 additional, installs a wheel and wagon box again additional, just can make end bay formula three-wheel vehicle.The sidecar support is contained on the hind axle 31, and an end is connected with triangle flat-topped ridge 32, the other end with install wheel additional and 33 be connected, wagon box is contained on the sidecar rack pin shaft 34.This garage's car is stable, does not have the anxiety of toppling over, and becomes and picks old, weak, sick, residual, the young car that makes things convenient for.

The utility model folding convenient, in light weight, volume is little, Portable belt, vehicle body can shorten, and shelf can be locked, and easily combination has the multiplex advantage of a car.

Claims

1, a kind of multifunction folding bicycle that includes folded beam, wheel, handle, shelf, front vehicle frame, spider composition.It is characterized in that:

A. the skin of beam is by front-axle beam 2, girder 3, and the overcoat beam that the back rest 5 is formed,

B. the internal layer of beam is by preceding inner beam 9, the Nei Taoliang that back inner beam 7 is formed,

C. preceding inner beam 9 welds mutually with front connector 1, and back inner beam 7 welds mutually with back joint 6, is welded with nut 8 on the girder 3,

D. the overcoat beam casing is on Nei Taoliang, and by ring bolt 4, nut 8 is fastened.

2, multifunction folding bicycle according to claim 1 has groove 10 on inner beam 9 and the back inner beam 7 before it is characterized in that, there is notch 11 side, two ends of girder 3.

3, multifunction folding bicycle according to claim 1 is characterized in that shelf can be latching devices, and it is by preceding shelf 12, Connecting jont 13, and guided missile formula connecting rod 16, back shelf 17, screw 18, nut 19 is formed.

4, multifunction folding bicycle according to claim 1 is characterized in that on the central axis seat 21 of spider axis ear 22 being arranged, heel brace 27, the spike wheel apparatus that Caster 29 is formed.

5, multifunction folding bicycle according to claim 1 is characterized in that a sidecar support 30 can be arranged on the hind axle.