| 摘要 |
The invention relates to a swinging arm for a fluid transfer device. The arm comprises a fixed end for mounting, the arm further comprises a triggering end parallel to the fixed end, the triggering end connects with the fixed end through a vertical arm vertical to the fixed end, the triggering end at the middle portion thereof has a through hole for matting with the extension spring, the triggering end away from the vertical arm has a beak-like rod, the angle made with the beak and the rod of the beak-like rod is an obtuse angle, the end of the beak is round, the connection between the rod and the beak is round, the rod and beak each facing the side of triggering block respectively have a first plane and a second plane, they tangentially connect with each other through a first arcuate surface, the beak facing the side of the triggering block has a second arcuate surface, four of them intermittently mate with the triggering block. <Figure 5> |
