CN201411008Y - Shopping tricycle - Google Patents

Abstract

The utility model relates to a novel small double functional shopping tricycle. The front part of the tricycle keeps the bicycle structure, and the structure of the back part of the tricycle is improved based on the traditional tricycle. The back part of the tricycle is characterized in that the diameters of the two back wheels are small, and the distance between the two wheels is small; at leastone strut is arranged on a tubular axle between the two wheels close to the two ends of the two wheels to support a plane back seat the horizontal height of which is 60cm, and the back seat is used tobe sit by people; a small bucket is arranged on the back seat, and the small bucket and the back seat adopt a non-fixed movable connecting mode that a 90-degree hook respectively arranged at the twosides of the bottom of the small bucket is sleeved in the two sides of the back seat, so that the small bucket can be freely disassembled or sleeved; and the small bucket can be disassembled when people is carried to sit on the back seat, and the small bucket can be sleeved when the objects are carried to be put in the bucket. The utility model is suitable for household shopping and particularly suitable for supermarket shopping.

Description

The three-wheel shopping cart

Technical field

The utility model relates to a kind of small-sized dual-purpose tricycle, and its structure is transformed on the basis of traditional trishaw.

Background technology

Traditional bicycle and trishaw be defectiveness all, and rear bicycle is too little, and does not have back bucket, can not carry more article, two wheels, poor stability.The trishaw car body is too big, and is very clumsy, do not have back seat again, can not sit the people, uses inconvenience.

Summary of the invention

The purpose of this utility model is to overcome the defective of traditional bicycle and trishaw and its long and a kind of new product that provide is provided.The utility model has designed a kind of tricycle of novel small and exquisite two functions.It both can carry more article, can sit the people again, and car body is small and exquisite, and simple for structure, the most suitable home shopping is the usefulness of family's supermarket shopping especially.

The purpose of this utility model reaches by the following technical programs: the predecessor of car keeps the structure of bicycle, and the rear structure of car is transformed on the basis of traditional trishaw.The rear portion characteristics of car are that two trailing wheels are little, and diameter is 45 centimetres, and the distance between the two-wheeled is less, are 50 centimetres.Have a strut at least near each end of two-wheeled two ends on the tubular axis between the two-wheeled, prop up a level height and be 60 centimetres plane back seat.Back seat is used for sitting the people.

Little bucket is set on the back seat, and back seat and little bucket are all on the two-wheeled wheel body.Take revocable mobilizable connection mode between little bucket and the back seat, method is: little bucket two bottom sides respectively has 90 degree crotches, packs into back seat dual-side portion.So little bucket can be with hand unloading, putting freely.Can unload little bucket when manned, the people is sitting on the back seat; Can put little bucket when loading, article are put in the bucket.Be convenient to carrying like this.

It more than is technical characterictic of the present utility model.

Traditional bicycle has only two wheels, does not have back bucket again, cannot carry more article, and poor stability.Its advantage is that integral structure is light and handy, travels freely.The defective of trishaw is to sit the people, and rear structure is big and heavy, the inconvenience of travelling.Its advantage is that good stability can carry more article.The utility model has both length concurrently and goes it short.Three wheels, good stability; Body is little, and is simple for structure light and handy, travels freely.Back seat is arranged, can sit the people; Little bucket is arranged, can loading, two kinds of functions.A lot of home shoppings slightly for a long time, bicycle can not carry, trishaw is big because of volume, travel clumsy and rare human it, so a lot of family can only sit other vehicle when purchasing more article.The utility model is with simple for structure, and body is light and handy, good stability, and two kinds of functions of manned loading are arranged, especially be fit to the usefulness of home shopping, and meet the need of market.Drive system is the same with traditional trishaw.

The brake principle of the principle of brake system and bicycle just changes on the structure too slightly, i.e. two brake cable of right hand sneek control, effect back two-wheeled respectively; And bicycle right hand sneek has only a brake cable, acts on a trailing wheel.

Description of drawings

Be described further below in conjunction with description of drawings and specific embodiment

Fig. 1 is a three-wheel shopping cart lateral plan

Fig. 2 is back seat and little bucket cross-sectional view

In Fig. 1, wherein 1 is foot-operated, the 2nd, and driven wheel, 3, the 4th, bottom linkage rod, 5, the 6th, brake cable, 7, the 8th, rear drive sprocket, 9, the 10th, circular brake wheel, 11, the 12nd, strut, 13, the 14th, hound, the 15th, back seat front rod, the 16th, gear, the 17th, tubular axis, the 41st, (in the tubular axis) roller bearing, the 18th, chain, the 19th, saddle, 20, the 21st, connecting rod, the 22nd, right hand sneek, the 23rd, left hand sneek, the 24th, handlebar, the 25th, front fork, the 26th, front-wheel, the 27th, saddle strut, the 28th, front brake, the 29th, plane back seat, the 30th, back seat the right bar, the 31st, back seat left side bar, the 33rd, back seat rear linking rod, the 34th, little bucket, the 35th, little bucket ear eye.

In Fig. 2, the left crotch of 36,37 (little bucket two bottom sides has 90 degree), right crotch, the 38, the 39th, back seat dual-side portion is a left lateral, the right portion, the 29th, back seat, the 40th, software cushion.

The specific embodiment

In Fig. 1, wherein vehicle frame is made up of front fork 25, connecting rod 20,21, saddle strut 27, bottom linkage rod 3,4 etc.Connecting rod 20,21 length are respectively 58 centimetres, 62 centimetres, saddle strut 27 long 58 centimetres, bottom linkage rod 3,4 each long 70 centimetres.

Drive system is by riding 1, gear 2, chain 18, gear 16, roller bearing 41 compositions such as grade that tubular axis is 17 li.

Brake system is by left sneek, right sneek, a brake cable on the left side, compositions such as two brake cable in the right, circular brake wheel and semicircle rubber skin.

In the embodiment shown in fig. 1, respectively hold up a strut 11 and 12 near the two-wheeled two ends on the tubular axis between two drive wheels, prop up a level height and be 60 centimetres plane back seat 29.Have two bars to connect back seat left and right sides side rod in the centre of plane back seat 29, promptly back seat front rod 15 is connected with back seat left side bar 31 with back seat the right bar 30 with back seat rear linking rod 33.Like this, two side levers of plane back seat 29 are that back seat the right bar 30, back seat left side bar 31 are formed this back seat plane with back seat front rod 15 and back seat rear linking rod 33.For increasing the stability of plane back seat, respectively connect a brace again in the bottom of strut 11,12 and be connected (or on tubular axis, hold up two braces again with the junction of strut 11,12 again be connected formation hound 13,14 with the end of back seat side rod 30,31) with the end of back seat side rod 30,31 near two-wheeled two ends tubular axis.The plane of back seat can be the metal hardboard, can settle cushion on the metal hardboard.The back seat of software is taken comfortable.The people can tiltedly sit, and also can lean against saddle and be seated.In the back seat rectangular planes, long 60 centimetres, wide 50 centimetres.

In the embodiment shown in Figure 2, two recesses of little bucket two bottom sides crotch 36,37 formation.When putting little bucket, two recesses are aimed at back seat dual-side portions 38,39, advance inward to get final product; Get final product toward post-tensioning when unloading.The height of software cushion is 1.5 centimetres.Crotch is high 1.55 centimetres, and is wide 1.5 centimetres.When putting little bucket, little bucket bottom and software cushion mutual extrusion, the software cushion has a top power that makes progress, and can better fix the position of little bucket, prevents the landing under steam of little bucket.Like this, form revocable type of attachment between little bucket and the back seat.

Little bucket can be that duroplasts is made, and the hardboard plane also can be the steel wire net structure; The steel wire net structure is given light sense.Little bucket two upper lateral parts of plastics hardboard respectively have an ear eye, are convenient to put in the little bucket of carrying with hand.Long 60 centimetres of little bucket, wide 50.5 centimetres, high 25 centimetres.

The driving system structure principle is the same with traditional trishaw.Pedal rides 1, transmission gear 2, and by chain 18, transmission gear 16, the roller bearing 41 in the gear 16 transmission tubular axis, roller bearing 41 and two trailing wheels are fixedly connected, and roller bearing rolls, and back two-wheeled rolls, thereby car is rolled to overtake.

The brake principle is the same with bicycle, and not same is two brake cable of right hand sneek control.Left hand sneek control front brake, front brake effect front-wheel.Two brake cable of right hand sneek control, two brake cable act on the circular brake wheel 9,10 in two backs respectively.Wherein the circular brake wheel structure in back is the same with the circular brake wheel of bicycle, and its position is placed on the roller bearing 41 of two trailing wheel inboards.When holding tight sneek, brake cable has a pulling force, brake cable links to each other with semi-circular rubber on the circular brake wheel, semi-circular rubber on the circular brake wheel is past drop-down, circular brake wheel 9,10 on rubber and the roller bearing 41 rubs, stop circular brake wheel to roll, thereby stop roller bearing, wheel rolling.

The front-wheel wheel footpath of car is 55 centimetres.Two drive wheels wheel footpath, back is 45 centimetres.Because the two-wheeled wheelspan is little, have only 50 centimetres, if two rear drive sprockets are too big, and the stablizing of turning of then travelling is bad, looks also not attractive in appearance.

The size of above this product of design-calculated, just this product is a kind of, and size wherein such as connecting rod 20,21 length are respectively 58 centimetres, 62 centimetres, saddle strut 27 long 58 centimetres, bottom linkage rod 3,4 each long 70 centimetres, 50 centimetres of two wheelspans are in the back seat rectangular planes, long 60 centimetres, wide 50 centimetres, long 60 centimetres of little bucket, wide 50.5 centimetres, it is not unique size of this product, so in claims, the size of each parts of this product is not unique size.

This product can be according to the length of back seat, little bucket three kinds of models of size design with wide ratio

The I type is the distance between both sides of growing up (length of connecting rod before or after the back seat) of back seat both sides side rod (the left and right side rod of back seat).To cooresponding little bucket, the length of its both sides is greater than the width between the both sides therewith.As above for example promptly be.Back seat both sides side rod length is 60 centimetres, and front and rear connecting rods is 50 centimetres.The length of little bucket is 60 centimetres, and wide is 50.5 centimetres.

The II type is that the length of back seat both sides side rod (the left and right side rod of back seat) equals the distance (back seat between the both sides

The length of front or rear connecting rod)).To cooresponding little bucket, the length of its both sides equals the width between the both sides therewith, and back seat and little bucket birds-eye view are square.

The length of III type back seat both sides side rods (the left and right side rod of back seat) is less than the distance between the both sides (length of connecting rod before or after the back seat).To cooresponding little bucket, the length of its both sides is less than the width between the both sides therewith. and at this moment, two rear drive sprockets distance can optionally corresponding growth.

Claims (1)

1. small and exquisite easy dual-purpose three-wheel shopping cart of sitting people's loading, comprise handlebar (24), front-wheel (26), vehicle frame, saddle (19), two trailing wheels (7), (8), it is characterized in that two rear wheel rotations footpath is little, two rear tracks are little, have at least two struts to prop up a plane back seat in the car bottom, little bucket is set on the back seat, adopt the flexible connection form between little bucket and the back seat, little bucket can be unloaded with hand loading onto freely.

Images