Patent ID: 8870213

Claim:
A Single-Hand Foldable Baby Stroller which comprises: A Hand Tube ( 1 ), a Front Leg Tube ( 2 ), a Front Helm ( 21 ), a Rear Leg Tube ( 3 ), a Rear Helm ( 31 ), and 2 Joint Components ( 4 ); Said Joint Components connect the Hand Tube ( 1 ), the Front Leg Tube ( 2 ) and the Rear Leg Tube ( 3 ) together; Each of said Joint Component ( 4 ) includes an Upper Joint ( 41 ), a Lower Joint ( 42 ), a Sleeve Tube ( 44 ), a Limiting Pedestal ( 43 ) and a Folding Operation Component ( 5 ); said Upper Joint ( 41 ) is connected with the Hand Tube ( 1 ), and said Lower Joint ( 42 ) is connected with the Front Leg Tube ( 2 ); One end of said Sleeve Tube ( 44 ) is inserted in the Limiting Pedestal ( 43 ), and another end is sleeved in the Rear Leg Tube ( 3 ); Said Upper Joint ( 41 ), Lower Joint ( 42 ) and Sleeve Limiting Pedestal ( 43 ), are connected and rotatable, an Alignment Pin ( 45 ) is inserted through said Upper Joint ( 41 ), Lower Joint ( 42 ), Sleeve Tube ( 44 ) and Limiting Pedestal ( 43 ), and two Path Grooves ( 411 ) ( 421 ) separately on top of said Upper Joint ( 41 ) and the bottom of said Lower Joint ( 42 ) which face opposingly to each other; there is a common intersection point between said Path Groove ( 411 ) ( 421 ), and a Latch ( 46 ) that is inserted through said Path Grooves ( 411 ) ( 421 ) and Sleeve Tube ( 44 ); Said Folding Operation Component ( 5 ) includes a Restoring Spring ( 51 ) inside the Sleeve Tube ( 44 ), a Pulling Component ( 52 ), a Fastening Component ( 53 ) that positions said Sleeve Tube ( 44 ) in the Rear Leg Tube ( 3 ), and a Button Component ( 54 ) that drives the Fastening Component ( 53 ); Said Button Component ( 54 ) drives the Fastening Component ( 53 ) to detach from the Rear Leg Tube ( 3 ), and the Fastening Component ( 53 ) drives the Sleeve Tube ( 44 ) to move, leading the Latch to move through the Path Grooves ( 411 ) ( 421 ), and cause the Upper Joint ( 41 ) and Lower Joint ( 42 ) both turn counter-clockwise.