CN201457598U

CN201457598U - Four-wheeled rollator

Info

Publication number: CN201457598U
Application number: CN2009200341443U
Authority: CN
Inventors: 贾庆国
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-06
Filing date: 2009-08-06
Publication date: 2010-05-12
Anticipated expiration: 2019-08-06

Abstract

The utility model relates to a four-wheeled rollator. The present various bicycles have defects as follows: the chain driving has a complicated structure and is not easy to process; two wheels are in touch with the ground, the stability is poor and the safety cannot be ensured; the body is heavy, and not easy to carry or store; riding is not comfortable, and a rider gets tired easily; the structural design is not reasonable, and cannot meet the riding requirements of middle-aged and old people and younger; and the frame is so conventional that the appearance is old-fashioned and inaesthetic. In the utility model, two front drive wheels are connected through a front rotating shaft, two rear wheels are connected through a rear rotating shaft, the upper parts of the front rotating shaft and the rear rotating shaft are respectively sleeved with sleeves, a connecting tube at the lower end of a rollator seat is connected with the sleeves, and the rollator frame is formed; and the rollator seat and a backrest adopt a box body type structure and connected into a whole through a zipper. The utility model has the advantages of safety and reliability, simple and compact structure, free speed control, and convenient stop and start; the structure is simple and easy to process; and the riding is comfortable, the seat is low, the rider can get on/off conveniently, and the backrest adopts the box body type structure, so that articles can be carried about.

Description

A kind of four-wheel travelling aided bicycle

Technical field

The utility model relates to a kind of four-wheel travelling aided bicycle.

Technical background

There is following shortcoming in existing miscellaneous bicycle: chain-type transmission, complex structure, difficult processing; Two-wheeled lands, and poor stability is dangerous; Vehicle body is long, and Heavy Weight is portable, deposit; Drive uncomfortable, fatiguability; Structure design is unreasonable, can not satisfy person in middle and old age and teenager drives; Vehicle frame relates to tradition, and pattern is outmoded not attractive in appearance.

The utility model content

The technical matters that the utility model solved provides a kind of simple in structure, and is portable, the four-wheel travelling aided bicycle of ride comfort.

For solving above-mentioned technical matters, the technical scheme that the utility model is taked:

The utility model comprises vehicle frame, two front driving wheels, two trailing wheels, handlebar, vehicle seat, backrest, two pedals, two front driving wheels connect by front rotary shaft, two trailing wheels connect by the back rotating shaft, its special character is: the top of described front rotary shaft and back rotating shaft is respectively arranged with sleeve pipe, the connection pipe of vehicle seat lower end is connected with sleeve pipe, constitutes vehicle frame; Described vehicle seat, backrest adopt box typed structure, and connect as one by slide fastener.

Above-mentioned vehicle seat, backrest adopt the pocket type structure, and connect as one by slide fastener.

Above-mentioned pedal and the rim of front driving wheel are by being threaded.

Above-mentioned front rotary shaft, back rotating shaft are respectively arranged with the sleeve pipe that length is 5-6cm.

Compared with prior art, the beneficial effects of the utility model: adopt four-wheel to land, thereby safe and reliable; Adopt the through-coupling mode, thus simple and compact for structure, and the driving speed stops walking conveniently freely; Easy processing simple in structure; Ride comfort, the seat is low, and is easy for going up and down, and backrest adopts box-type or pocket type structure, can personal effects, switch the sleeve pipe in front rotary shaft and the back rotating shaft, can pull the conversion of case and travelling aided bicycle.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the birds-eye view of Fig. 1;

Fig. 3 is an example structure scheme drawing of the present utility model.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

Referring to Fig. 1～2, the utility model comprises vehicle frame, two front driving wheels 1, two trailing wheels 2, handlebar 5, vehicle seat 3, backrest 4, two pedals 9, two front driving wheels 1 connect by front rotary shaft, two trailing wheels 2 connect by the back rotating shaft, the top of front rotary shaft and back rotating shaft is respectively arranged with sleeve pipe 6,7, and the connection pipe 8 of vehicle seat 3 lower ends is connected with sleeve pipe 6,7, constitutes vehicle frame, volume is little, and disassembly and assembly are convenient.

Referring to Fig. 3, front rotary shaft, back rotating shaft are respectively arranged with the

sleeve pipe

10,11 that length is 5-6cm, two front driving wheels 1 and two trailing wheels 2 are rotated, being adjusted to

sleeve pipe

10,11 is connected with the connection pipe 8 of vehicle seat 3 lower ends, bodywork height is turned down,

sleeve pipe

10,11 becomes handle, affects as the travelling aided bicycle walking that pulls case.

Vehicle seat 3, backrest 4 adopts box typed structure or pocket type structures, can place the article of going out in vehicle seat 3, backrest 4, and connect as one by slide fastener 12, and vehicle seat 3, backrest 4 are opened slide fastener 12 and backrest 4 is erected got final product.

The rim of pedal 9 and front driving wheel 1 drives two front driving wheels 1 and moves ahead by being threaded.

Claims

1. four-wheel travelling aided bicycle, comprise vehicle frame, two front driving wheels (1), two trailing wheels (2), handlebar (5), vehicle seat (3), backrest (4), two pedals (9), two front driving wheels (1) connect by front rotary shaft, two trailing wheels (2) connect by the back rotating shaft, it is characterized in that: the top of described front rotary shaft and back rotating shaft is respectively arranged with sleeve pipe (6,7), the connection pipe of vehicle seat lower end (8) is connected with sleeve pipe (6,7), constitutes vehicle frame; Described vehicle seat (3), backrest (4) adopt box typed structure, and connect as one by slide fastener (12).

2. a kind of four-wheel travelling aided bicycle according to claim 1 is characterized in that: described vehicle seat (3), backrest (4) adopt the pocket type structure, and connect as one by slide fastener (12).

3. a kind of four-wheel travelling aided bicycle according to claim 1 and 2 is characterized in that: the rim of described pedal (9) and front driving wheel (1) is by being threaded.

4. a kind of four-wheel travelling aided bicycle according to claim 3 is characterized in that: described front rotary shaft, back rotating shaft are respectively arranged with the sleeve pipe that length is 5-6cm (10,11).