CN2429427Y

CN2429427Y - Bicycle frame with high adjustable drive axle

Info

Publication number: CN2429427Y
Application number: CN 00238727
Authority: CN
Inventors: 朴永浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-16
Filing date: 2000-06-16
Publication date: 2001-05-09
Anticipated expiration: 2010-06-16

Abstract

The utility model relates to a bicycle frame with a central shaft with adjustable height. A transverse sleeve and a saddle supporting pipe of the utility model are in split telescopic structure, the transverse sleeve is provided with the central shaft and a bearing, and an inserting pipe is fixedly connected to the middle part of the transverse sleeve transversely, is corresponding to a pipe hole of the saddle supporting pipe and is clamped and locked by a pipe which is fixedly connected to a pipe opening on the lower end of the saddle supporting pipe. The utility model can be assembled into a bicycle, and the height of a central shaft of the bicycle and the terrain clearance of a pedal of the bicycle are adjustable. The utility model can be ridden on uneven roads and can be made into baby carriers with wide suitable age ranges.

Description

Axis adjustable height cycle frame

The utility model relates to bicycle, relates in particular to a kind of axis adjustable height cycle frame.

Bicycle is the widely used walking-replacing tool of China both urban and rural residents, still transport the thing instrument in many rural areas, even it is growing at vehicular transport, small passenger car begins to enter today of family, bicycle is owing to ride light, not high to rto request, pollution-free, low cost and other advantages still keep powerful growth momentum.The vehicle frame of existing bicycle, its position that axis is installed is changeless, but in reality is used fixing in the vehicle frame of shaft position also bring many inconvenience sometimes, for example on the hill path by bike because ground relief, pedal can scrape ground sometimes.Existing children ride the bicycle of usefulness, the all ages and classes section need be ridden the bicycle with differing heights, in the child growth process, need use the perambulator of many differing heights instead, the bicycle that has middle shaft position to regulate increased the investment of family, if can address the above problem, make things convenient for the customer, yet there are no such bicycle in the market.

The purpose of this utility model is to fill up above-mentioned deficiency, a kind of axis adjustable height cycle frame is provided, it can be assembled into axis and the adjustable bicycle of pedal terrain clearance, riding when it can be applicable to ground relief, and make the wide perambulator of adaptation age bracket.

The purpose of this utility model is achieved in that

A kind of axis adjustable height cycle frame, this vehicle frame is by front sleeve, crossbeam, preceding down tube, the saddle support tube, crotch retreads, the horizontal crotch in back is affixed to be whole, the horizontal cover that axis and bearing are installed is arranged in saddle support tube lower end, it is characterized in that: the horizontal cover of described installation axis and bearing and saddle support tube are the telescopic structure of split, the affixed intubate of this horizontal cover lateral middle, the pore of this intubate and saddle support tube is corresponding, by the affixed pipe clamp locking of the lower end mouth of pipe of saddle support tube, this pipe clamp is the opening sleeve that two card ears are arranged, and Ka Erzhong is equipped with the binding bolt with nut locking.

The utility model has following actively useful effect:

On the hill path by bike because ground relief, pedal scrapes ground often, rides the car of using this telescoping crank, when on the hill path, travelling, can car crank contraction in length some, can increase substantially moving velocity and safety factor.

2. existing several children ride the bicycle of usefulness, because children, juvenile growing height are very fast, the same year zero section to not change the bicycle of riding differing heights, use the car of the utility model axis telescoping vehicle frame, regulate and the axis height adjustment by saddle height, it can adapt to the age bracket broad the child ride usefulness, reduce family investment.

3. this product is applicable to bicycle, three-wheel vehicle, sporting car, perambulator etc.

Now in conjunction with the accompanying drawings:

Fig. 1 is the structural representation of the utility model one embodiment, shows retracted mode;

Fig. 2 shows the state of stretching out with Fig. 1;

Fig. 3 is the structural representation that the horizontal cover of axis and bearing is installed among Fig. 1;

Fig. 4 is the lateral plan of Fig. 3;

Fig. 5 is the birds-eye view of Fig. 3;

Fig. 6 is the local structure scheme drawing of the pipe clamp dress transverse tube of Fig. 1 medial saddle seat supports pipe;

Fig. 7 is the structural representation power of pipe clamp among Fig. 6, is front elevation;

Fig. 8 is the lateral plan of Fig. 7;

Fig. 9 is the birds-eye view of Fig. 7.

Accompanying drawing number

1. vehicle frame

Down tube before (101. the entrucking handle) front sleeve 102. crossbeams 103.

The horizontal crotch in crotch 106. backs 104. saddle support tube 105. retreads

2. (install axis and bearing) horizontal cover 201. intubate

3. axis

4. pipe clamp 401. blocks ears 402. openings

403. bolt hole 404. bolts

Please refer to Fig. 1, Fig. 2, the utility model is a kind of axis adjustable height cycle frame, this vehicle frame is by front sleeve 101, crossbeam 102, preceding down tube 103, saddle support tube 104, crotch 105 retreads, the horizontal crotch in back 106 is affixed be integral body, the horizontal cover 2 that axis 3 and bearing are installed is arranged in saddle support tube 104 lower ends, the horizontal cover 2 of described installation axis and bearing is the telescopic structure of split with saddle support tube 104, please be simultaneously with reference to Fig. 3, Fig. 4, the affixed intubate 201 of the lateral middle of this horizontal cover 2 of Fig. 5, this intubate 201 is corresponding with the pore of saddle support tube 104, see Fig. 6 by a pipe clamp 4 lockings that the lower end mouth of pipe of saddle support tube 104 is affixed, please be simultaneously with reference to Fig. 7, Fig. 8, Fig. 9, this pipe clamp 4 is for there being the cover that opening 402 is arranged of two card ears 401, and Ka Erzhong is equipped with the binding bolt 404 with nut locking.

Use this vehicle frame, by the height adjustment (prior art) of saddle and the height adjustment of axis, when it is applied to perambulator, the child that can adapt to the age bracket broad rides usefulness, the child in for example original 6-13 year changes the car of three differing heights possibly, and a present car is with regard to the broad age bracket in applicable 6-13 year.

Claims

1. axis adjustable height cycle frame, this vehicle frame is by front sleeve, crossbeam, preceding down tube, the saddle support tube, crotch retreads, the horizontal crotch in back is affixed to be whole, the horizontal cover that axis and bearing are installed is arranged in saddle support tube lower end, it is characterized in that: the horizontal cover of described installation axis and bearing and saddle support tube are the telescopic structure of split, the affixed intubate of this horizontal cover lateral middle, the pore of this intubate and saddle support tube is corresponding, by the affixed pipe clamp locking of the lower end mouth of pipe of saddle support tube, this pipe clamp is the opening sleeve that two card ears are arranged, and Ka Erzhong is equipped with the binding bolt with nut locking.