CN2258852Y

CN2258852Y - Single and double combined bicycle

Info

Publication number: CN2258852Y
Application number: CN 96226261
Authority: CN
Inventors: 贾昌勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-15
Filing date: 1996-05-15
Publication date: 1997-08-06
Anticipated expiration: 2006-05-15

Abstract

The utility model relates to a single and double combined bicycle which comprises a main handle bar, a main cradle, a front fork, a fore wheel, a main bicycle frame, a back wheel, a main roller cone, a flywheel, a main chain and a main pedal. The utility model is characterized in that an auxiliary bicycle frame is arranged between the front fork and the main bicycle frame; the upper part of a vertical beam of the auxiliary bicycle frame is connected with an auxiliary cradle; the lower part of the vertical beam, an auxiliary roller cone and an auxiliary pedal are in rotating connection. The auxiliary roller cone and the main roller cone are in transmission connection through an auxiliary chain; the front fork is inserted in a vertical tube at the front end of the cross beam of the auxiliary bicycle frame, and a vertical beam of the main bicycle is fixedly connected to the back end of the cross beam. The utility model has the advantages that the utility model can conveniently proceed with the structural transformation of single riding and double riding according to the requirements, the structure is simple, and the use is easy.

Description

Single two combination bicycle

The utility model belongs to a kind of bicycle, the two combination bicycles of particularly a kind of list.

Of a great variety in bikedom, but the overwhelming majority is single rider formula, for the bicycle structure more complicated of double rider formula structure, can not carry out single, double people easily simultaneously and ride the textural association conversion.

The purpose of this utility model provides the two combination bicycles of a kind of list, can carry out the double rider reconfiguration combination of list as required easily, and is simple in structure.

The purpose of this utility model is to realize like this; It comprises main handlebar, main saddle, front fork, front-wheel, main car frame, trailing wheel, cardinal teeth wheel, flywheel, main chain bar and main pedal, its technical characterictic is: between front fork and main car frame subframe is set, the vertical beam upper end of subframe connects secondary saddle, the vertical beam lower end is rotated and is connected secondary gear wheel and secondary pedal, secondary gear wheel connects the cardinal teeth wheel by secondary chain gear, the crossbeam front end standpipe grafting front fork of subframe, the affixed main car frame vertical beam in crossbeam rear end.

Principle of work of the present utility model: during double riding, two people step on respectively pedals the major-minor pedal, and secondary gear wheel is taken turns to cardinal teeth by secondary chain reinforcing, and two people are added in and drive the flywheel rotation by the main chain bar making a concerted effort on the cardinal teeth wheel, thereby make trailing wheel.When being transformed into single bicycle, chain is pulled down, then front fork is assembled on the preceding standpipe of main car frame.

The utility model has the advantages that: can carry out the conversion combination of single double rider structure as required easily, simple in structure, easy to use.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation.

Fig. 2 is a front fork and the scheme drawing that connects of standpipe.

Fig. 3 is that secondary vehicle seat connects secondary handlebar scheme drawing.

Fig. 4 is that the chassis cross-member rear end connects scheme drawing with the main car frame vertical beam.

Fig. 5 is that the utility model is transformed to single rider structural representation.

See Fig. 1-4, concrete structure is as follows: the crossbeam of subframe 19 and vertical beam 5 are fixedly connected, and the front end of crossbeam connects standpipe 3, and the lower end of vertical beam 5 is rotated and connected secondary gear wheel 17 and secondary pedal 18; The front fork 2 that front-wheel 1 is housed is actively plugged in the standpipe 3 of subframe 19 crossbeams, and the lower end screw thread of handlebar 4 is connected on the front fork 2; The rear end of chassis cross-member is by on the vertical beam of the affixed main car frame 9 of bolt.The top movable of subframe 19 vertical beams is inserted in the standpipe 6 of main car frame 9, and the lower end screw thread of secondary saddle 7 is connected on the vertical beam of subframe 19; Secondary handlebar 8 is installed on the secondary saddle 7, and affixed by bolt and main car frame 9.At secondary gear wheel 17 and the secondary chain 16 of 14 driving coupling of cardinal teeth wheel.Parts mounting structures such as the structure of main car frame 9 and trailing wheel 11, main saddle 10, flywheel 12, main chain bar 13, main pedal 15 are prior art.

See Fig. 5, the double rider reconfiguration of the utility model is become single rider structure, promptly remove subframe and secondary saddle, secondary gear wheel, secondary pedal, secondary chain, front fork 2 and main handlebar 4 are assembled on the main car frame 9.

Claims

1, the two combination bicycles of a kind of list, it comprises main handlebar, main saddle, front fork, front-wheel, main car frame, trailing wheel, cardinal teeth wheel, flywheel, main chain bar and main pedal, it is characterized in that: between front fork and main car frame, subframe is set, the vertical beam upper end of subframe connects secondary saddle, the vertical beam lower end is rotated and is connected secondary gear wheel and secondary pedal, secondary gear wheel connects cardinal teeth wheel, the crossbeam front end standpipe grafting front fork of subframe, the affixed main car frame vertical beam in crossbeam rear end by secondary chain gear.