| 摘要 |
<p>Disclosed is a bicycle double up combination air pouring system. The bicycle double up combination air pouring system comprises a bicycle double up combination air pouring system comprises: a sub frame for being longitudinally in double installed on the upper of the rear frame, on both of its side, a tighten piece having a penetration hole is projected, simultaneously with forming an open portion on the circumstance of the end at a sub frame, and thereby coupling a clip capable of elastically shrinking and widening and also coupling a tightness lever to be operated so that the tightness lever may be tighten or relaxed by a turn of a lever in a cam method to a penetration hole formed at the tighten piece, and a supporting member is projected and fixed to a fixing plate having a coupling hole at the position corresponding to a clip on a crank axis of a pedal installed at the lower end of a sub frame; and a cylinder housing having a cylinder chamber at its inside, which is downward formed perpendicularly to the circumstance of the clip at the supporting member, and the cylinder housing is fixedly incorporated with the front frame by the tightness lever and the rotation of the cylinder housing is controlled, a screw axis which is downward formed and projected perpendicularly to the lower end of the cylinder housing is penetrated through the coupling hole of the fixing plate and is projected to the exterior and then is engaged with a nut, the front frame which is installed in double on the rear frame is coupled and incorporated with the cylinder housing which can be rotated, a piston being coupled to the inner circumstance of the cylinder housing so as to be able to be rotated and then a pump grip is coupled to the upper end of a piston rod and incorporated with each other, the piston making an air to be pumped by the pump grip and the more pressed air being exited through an exit hole through which the cylinder at the lower of the cylinder housing is successively penetrated mutually with the exterior, and on the open upper end of the cylinder housing, a shielding cork having a engaging hole is joined and a piston rod is penetrated through the engaging hole, and an air pouring device is selectively engaged with a male screw at the circumstance of the piston rod according to whether an air pumping is operated or not.</p> |
