Patent ID: 8485063

Claim:
A device for disassembling and assembling pedals synchronously, comprising a locking mechanism for locking or unlocking a pedal ( 17 ) relative to a crank ( 1 ); a driving mechanism; at least two transmission racks ( 61 ; 81 ); two actuating rings ( 6 ; 88 ), each of which is connected with at least one of said at least two transmission racks ( 61 ; 81 ) so that the driving mechanism is rotatably connected with the at least two transmission racks ( 61 ; 81 ), wherein the driving mechanism drives each of the actuating rings to move in a direction parallel to an axis of the actuating rings; a motion mechanism, comprising: a connection assembly which is pivotably joined with the crank ( 1 ) at one end and connected with the pedal ( 17 ) at the other end; a motion control device for controlling the connection assembly so that the pedal ( 17 ) is displaced a predetermined distance and rotated a predetermined angle relative to the crank ( 1 ), wherein a driving effect of the driving mechanism is outputted to the motion control device at each end of a bottom bracket ( 7 ) through one of the at least two transmission racks connected with one of the two actuating rings ( 6 ; 88 ) and another of the at least two transmission racks connected with the other of the two actuating rings ( 6 , 88 ), so that the pedals at both ends of the bottom bracket ( 7 ) are synchronously displaced a predetermined distance and rotated a predetermined angle relative to the crank ( 1 ), and wherein the motion control device at each end of the bottom bracket ( 7 ) is rotatable relative to the driving mechanism wherein the motion control device comprises: a pushing control mechanism, configured to drive the pedal to displace relative to the crank, the pushing control mechanism comprising: a pushing rack ( 93 a ), a pushing driven rack, and a pushing transmission gear ( 93 ) is engaged with the pushing rack ( 93 a ) and the pushing driven rack, wherein the pushing driven rack comprises a first rack ( 91 a ) and a second rack ( 91 b ) hinged to each other, wherein the first rack ( 91 a ) or the second rack ( 91 b ) is fixed with the pedal ( 17 ) at unhinged end thereof, wherein the pushing driven rack and the pushing transmission gear ( 93 ) are arranged on a fixing frame ( 9 ) pivotably joined with a fixing seat; and a rotation control mechanism, configured to drive the pedal to rotate relative the crank, the rotation control mechanism comprising a rotating rack ( 95 ), a rotation transmission gear ( 94 ), and a rotation limiting mechanism ( 94 b , 94 a ) configured to limit the rotating rack ( 95 ) from driving the rotation transmission gear ( 94 ) to rotate, wherein the pushing transmission gear ( 93 ) is coaxially pivoted with the rotation transmission gear ( 94 ); and wherein the rotation transmission gear ( 94 ) is fixed relative to the fixing frame ( 9 ).