CN2226015Y - Tetracycle for child - Google Patents

Abstract

The utility model relates to a carriage for children carried on the back seat of a bicycle, which can be rid and pushed for advancing; the distance of a pedal and a saddle can be adjusted. A sleeve barrel, top thread, a bracket, a press plate, screws, a middle wheel and tight thread are added on the basis of a front wheel, pedals, handlebars, a cross beam, a saddle and back wheels. The front wheel, the pedals, the handlebars and the cross beam form a first part; the bracket forms a second part; the top thread, the saddle, the back wheels, the press plate, the screws, the middle wheel and thetight thread form a third part. The first and third parts are connected and combined a three-wheeled carriage for children whose distance of the saddle and the pedals is adjustable; the second and third parts are connected and combined a four-wheel push pram for children and can be carried on the back seat of the bicycle after fixed.

Description

Perambulator

The utility model relates to the perambulator that a kind of children use, and particularly steps on riding, regulating to step on distance, implementation and rear bicycle and take advantage of with combined integrated perambulator.

At present, known perambulator (three-wheel) structure be by front-wheel, handlebar, pin step on, crossbeam, vehicle seat, trailing wheel connect one and form.Children use operation during perambulator, with its health seat on vehicle seat, both hands hold the handlebar controlling party to, step on respectively with left and right sides pin and to step on left and right sides pin and step on and make that its front-wheel rotates, perambulator is walked.The simple function but used perambulator (three-wheel) is only ridden, and step on and step on apart from not reconciling, child growth, growth are comparatively fast, early stage children need seat to be carried out by the adult in perambulator, along with child growth in advance with the later stage because children's leg is too short or long, step on relatively and step on length or shorter and inapplicable of distance, cause for perambulator to a certain extent and use restriction, its function singleness.

The purpose of this utility model is for a kind of perambulator, and it not only can be ridden for children, and scalable is stepped on and stepped on distance, can be used as stroller and uses, and can be used as rear bicycle again and takes advantage of the band children to use.

The purpose of this utility model is achieved in that perambulator partly forms by three, first by front-wheel, pin step on, handlebar, crossbeam form one.Second portion is made of carriage.Third part is formed one by covering, handle, vehicle seat, sleeve, jackscrew, middle wheel, tight silk, pressing plate, screw, trailing wheel, and wherein middle wheel is the center of circle with middle wheel small end, can rotate 90 °, and is by tight silk that it is in position fixing during use.Three parts respectively are a part independently, the connection of three parts be by first's crossbeam or second portion carriage lower end with the 3rd sleeve, by gap before and after its crossbeam or carriage lower end (sectional dimension is identical) are in sleeve slide (having only a degree of freedom that moves forward and backward) in position the jackscrew captive joint combine.With after third part sleeve jackscrew is captiveed joint, the horizontal aspect of wheel transposition in its mat woven of fine bamboo strips three parts is fixing by tight silk, and have only front-wheel and trailing wheel kiss the earth this moment, thereby form a complete toy tricycle, reaches children's purpose by bike by first's crossbeam.When first was connected with third part, crossbeam slides in the sleeve gap certain conciliation distance, can regulate the fixed range of crossbeam in sleeve according to children's leg length, stepped on the purpose of stepping on distance thereby reach to reconcile.By the second portion carriage with after third part sleeve jackscrew is captiveed joint, wheel transposition vertical ground direction in the third part is fixing by tight silk, wheel and four wheels of trailing wheel kiss the earth in having only this moment, thereby form a complete four-wheel perambulator, children can carry out in Che Zhongyou adult by seat, thereby reach the order ground of carrying out perambulator.By the combination of third part or second and third part, because sitting the bottom at car, third part makes shape with rear bicycle symbol shape, it is put in rear bicycle by pressing plate, screw retention, children just can seat reach therein by the adult and take advantage of band and the purpose of row.

Owing to adopt such scheme, can on perambulator, realize riding, regulate to step on to step on and take advantage of band apart from, implementation and rear bicycle, only adopt crossbeam, sleeve, carriage, middle wheel and pressing plate parts on the baby carriage structure, simple in structure.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is main apparent structure figure of the present utility model (master map).

Fig. 2 is mansion apparent structure figure of the present utility model (auxiliary view).

Fig. 4 is the part sectional view of Fig. 1.

Among the figure 1. pin step on, 2. front-wheel, 3. handlebar, 4. crossbeam, 5. carriage, 6. hide, 7. handle, 8. vehicle seat, 9. sleeve, 10. wheel, 15. tight silks in jackscrew, 11. trailing wheels, 12. pressing plates, 13. screws, 14..

In Fig. 1, pin is stepped on (1), front-wheel (2), handlebar (3), crossbeam (4) is that one is formed first, carriage (5) is that a part is formed second portion separately, and covering (6), handle (7), vehicle seat (8), sleeve (9), jackscrew (10), trailing wheel (11), pressing plate (12), screw (13), middle wheel (14), tight silk (15) are formed third part for one.Form perambulator jointly by above-mentioned one, two, three parts.Wheel (14) is that rotate at the center with the small end wherein, and in level or vertically can fix by tight silk (15) with ground location.

In Fig. 3, be the component diagram of carriage (5), the lower end of carriage (5) is sleeve (9) junction with third part, its sectional dimension shape is identical with first crossbeam connection place fully.

In Fig. 4, be the partial enlarged drawing of Fig. 1, be the critical component of first and second partial sum third part junction combination.Crossbeam (4) and carriage (5) slide in sleeve (9) intermediate gap, and the one degree of freedom that only moves forward and backward is fixed by jackscrew (10), and horizontal stroke during use (4) or carriage (5) can not be used in combination with sleeve (9) simultaneously, only use one.Crossbeam (4) has certain length with the slide assembling part branch of sleeve (9), uses for reconciling.

First (pin steps on 1, front-wheel 2, handlebar 3, crossbeam 4) same third part in Fig. 1 (hide 6, handle 7, vehicle seat 8, sleeve 9, jackscrew 10, trailing wheel 11, pressing plate 12, screw 13, middle wheel 14, tight silk 15) is connected, it be toy tricycle that middle wheel (14) is placed the fixing back of the tight silk of level attitude (15), and crossbeam (4) can move conciliation and steps on and step on distance in sleeve (9).The same third part of second portion (carriage 5) (covering 6, handle 7, vehicle seat 8, sleeve 9, jackscrew 10, trailing wheel 11, pressing plate 12, screw 13, middle wheel 14, tight silk 15) is connected, middle wheel (14) is placed the upright position, the fixing back of tight silk (15) is the four-wheel stroller, and can be put in rear bicycle by pressing plate (12) by second and third part combination or third part, screw (13) is fixing, ushers to seat for its bicycle children take advantage of.

Claims (4)

1, a kind of can riding, carry out, adjusting is stepped on and is stepped on distance, rear bicycle is taken advantage of the perambulator of band, comprise front-wheel, pin is stepped on, handlebar, crossbeam, vehicle seat, hide, handle, trailing wheel, it is characterized in that: perambulator is made up of three parts, front-wheel, pin is stepped on, handlebar, crossbeam connects and composes first, carriage constitutes second portion, sleeve, jackscrew, vehicle seat, hide, handle, trailing wheel, pressing plate, screw, tight silk connects and composes third part, one or two parts are passed through crossbeam, sleeve, jackscrew is connected and is one, and two or three parts are passed through carriage, sleeve, jackscrew is connected and is one.

2, according to right 1 described perambulator, it is characterized in that: crossbeam or carriage lower end and sleeve are free-running fits, and be fixed by jackscrew and be one, cross sectional shape, the size of crossbeam and carriage lower end are identical, crossbeam or carriage lower end only move forward and backward one degree of freedom in sleeve, crossbeam and sleeve have certain length of fit.

3, according to right 1 described perambulator, wheel is that rotate at the center with middle wheel small end in it is characterized in that, and can or vertically be fixed by tight with ground-surface position in level.

4,, it is characterized in that pressing plate, screw can be fixed in rear bicycle with third part or two or three parts composition according to right 1 described perambulator.

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