公开(公告)号：US06997393B1

公开(公告)日：2006-02-14

申请号：US10944019

申请日：2004-09-17

申请人： Russdon D. Angold ,  Steve S. H. Han ,  David E. Robertson

发明人： Russdon D. Angold ,  Steve S. H. Han ,  David E. Robertson

IPC分类号： B05B15/10

CPC分类号： B05B15/70 ,  B05B15/74

摘要： The pop-up irrigation sprinkler includes a pressure reducing valve, a spring-biased, pop-up riser, and a valve seal of unitary construction adjacent to the lower end of the riser having a valve body, a valve plug at the lower end of the valve body sealing the inlet port while the riser is in the retracted position, and a channel within the valve plug that is in fluid communication with the upper end of the valve body. The pressure reducing valve has a flow tube mounted for limited movement within the riser and lower port of the flow tube. The lower port of the flow tube is normally open when the riser is in the extended, operative position a pressure. The normally open lower port is urged against the upper surface of the valve plug when by a surge of pressurized water. A washer is provided in the lower end of the valve plug for sealing the inlet port from inflow and outflow of water from the sprinkler while the riser is in the retracted position.

摘要翻译： 弹出式灌溉喷洒器包括减压阀，弹簧偏置的弹出式立管和与提升管的下端相邻的整体结构的阀密封件，其具有阀体，阀体的下端具有阀塞 所述阀体在所述提升管处于所述缩回位置时密封所述入口端口，以及所述阀塞内的与所述阀体的上端流体连通的通道。 减压阀具有安装成在流管的提升管和下端口内有限运动的流管。 当提升管处于延伸的操作位置时，流管的下端口通常打开。 当通过加压水的浪涌时，常开的下端口被推靠在阀塞的上表面上。 在阀塞的下端设置有一个垫圈，用于密封入口端口，同时提升管处于缩回位置时，水从喷头上的流入和流出。