Dual-shaft clutch varying speed device

A dual-shaft clutch varying speed device, comprising:

• a drive unit;
• an input shaft having an input gear is coupled with the drive unit;
• an output shaft with an end thereof penetrates through the input shaft and the drive unit, while its other end has at least an odd-numbered output gear and at least an even-numbered output gear;
• a housing having a housing gear;
• at least an odd-numbered clutch unit being furnished at an inner part of the housing has an odd-numbered clutch shaft and an odd-numbered clutch gear;
• and
• at least an even-numbered clutch unit being furnished at the inner part of the housing has an even-numbered clutch shaft and an even-numbered clutch gear;
• wherein one end of the odd-numbered clutch shaft penetrates through the even-numbered clutch shaft and juts out of the even-numbered clutch shaft, and the odd-numbered clutch gear being furnished at an end of the odd-numbered clutch shaft and is meshed with odd-numbered output gear juts out of an end of the even-numbered clutch shaft;
• an end of the even-numbered clutch shaft penetrates through the housing and juts out of the housing, the even-numbered clutch gear being meshed with the even-numbered output gear is furnished at the end where the even-numbered clutch shaft juts out of the housing;
• where the odd-numbered clutch shaft juts out of the even-numbered clutch shaft;
• the odd-numbered clutch gear is meshed with the odd-numbered output gear, one end of the odd-numbered clutch shaft penetrates through the even-numbered clutch shaft and juts out of the even-numbered clutch shaft, and the odd-numbered clutch gear is furnished at an end where the odd-numbered clutch shaft juts out of the even-numbered clutch shaft;
• the odd-numbered clutch gear is meshed with the odd-numbered output gear.