Device for controlling incoming/outgoing of water flow of a sprinkler
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 1, 1994
Grant Date -
N/A
app pub date -
Apr 28, 1994
filing date -
Apr 28, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for controlling incoming/outgoing of water flow of a sprinkler, comprising a control tube, a control pin, a pushing block, a frame member and a spring, wherein the control tube has a water incoming end and a water outgoing end and an outer surface of the control tube is formed with a rectangular recess. A pin chamber is disposed at a middle section of the recess and extends downward therefrom. The pin chamber having a first side wall formed with a water inlet, a second side wall formed with a water outlet, and a bottom wall formed with a communicating hole. The control pin has a substantially semispherical head section and three projecting ring sections. Each ring section of the control pin is formed with an annular groove receiving a sealing ring. The pushing block has a bottom face formed with a depression, two lateral projecting ribs, and an inclined wall located in the depression. The frame member is formed with an elliptic hole and a rectangular peripheral groove surrounding the elliptic hole. The switching operation of the present invention can be easily performed by single hand without using great force.
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