公开(公告)号：US5421552A

公开(公告)日：1995-06-06

申请号：US305829

申请日：1994-09-14

Applicant: Wen-Bin Wang ,  Fang-Hsiung Chang

Inventor： Wen-Bin Wang ,  Fang-Hsiung Chang

IPC: E03C1/05 ,  F16K31/62 ,  F16K31/44

CPC classification number: F16K31/62 ,  E03C1/052 ,  Y10T74/2133

Abstract: A foot-operated valve includes a valve set with a hollow seat and a push rod that extends movably and slidably into the hollow seat and that has a bottom end with a plug provided therearound. The push rod is biased to a first position, wherein the plug blocks normally a distal bottom end of a tubular sleeve that is secured in the hollow seat. When downward pressure is applied on the push rod to move the push rod to a second position, the plug ceases to block the bottom end of the tubular sleeve to permit communication between water outlet and inlet holes of the hollow seat. A control unit is secured to the hollow seat and includes a button retaining seat, a button and a rotary member. The control unit is operable to retain releasably the push rod in a depressed state to maintain communication between the water outlet and inlet holes even when the downward pressure applied on the push rod is extinguished.

Abstract translation: 脚踏阀包括具有中空座椅的阀组和可移动地且可滑动地延伸到中空座椅中的推杆，并且具有底端并且在其周围设置有塞子。 推杆被偏压到第一位置，其中塞子通常固定在中空座椅中的管状套筒的远端底端。 当在推杆上施加向下的压力以将推杆移动到第二位置时，塞子停止阻塞管状套筒的底端以允许中空座椅的出水口和入口孔之间的连通。 控制单元被固定到中空座椅上并且包括按钮保持座，按钮和旋转构件。 控制单元可操作地将推杆可释放地保持在凹陷状态，以便即使施加在推杆上的向下的压力熄灭，也能保持出水口和入口孔之间的连通。