Labor-saving bicycle convenient for speed regulation

The utility model discloses a labor-saving bicycle convenient for speed regulation, which comprises a front wheel assembly, a rear wheel assembly and a frame, the front wheel assembly and the rear wheel assembly are respectively arranged at the front end and the rear end of the frame, and the bicycl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	ZENG DONGBIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES PECULIAR TO CYCLES AND NOT OTHERWISE PROVIDED FOR,e.g. ARTICLE CARRIERS, CYCLE PROTECTORS CYCLE SADDLES OR SEATS CYCLES LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS PERFORMING OPERATIONS POWERED PROPULSION OF SLEDGES OR RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES TRANSPORTING
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Beschreibung
Zusammenfassung:	The utility model discloses a labor-saving bicycle convenient for speed regulation, which comprises a front wheel assembly, a rear wheel assembly and a frame, the front wheel assembly and the rear wheel assembly are respectively arranged at the front end and the rear end of the frame, and the bicycle is characterized by further comprising a four-bar mechanism, a chain wheel, a chain A and a transmission mechanism which are used for converting the dead weight of a rider into swinging force, the four-connecting-rod mechanism is installed on the frame, the chain wheel is rotatably installed on the frame and meshed with the middle of the chain A, the chain wheel is in transmission connection with the rear wheel assembly through the transmission device, one end of the chain A is connected to anoutput connecting frame rod of the four-connecting-rod mechanism in a sliding mode, and the end, connected with the frame, of the output connecting frame rod extends to form a bent part. The other end of the chain A is conne