US 11,701,677 B2
Water stream stop valve for sprinkler
Tsung Min Chou, Taipei (TW)
Assigned to Plastico Corporation, Taipei (TW)
Filed by PLASTICO CORPORATION, Taipei (TW)
Filed on Jan. 11, 2021, as Appl. No. 17/145,685.
Prior Publication US 2022/0219183 A1, Jul. 14, 2022
Int. Cl. B05B 12/08 (2006.01); B05B 15/74 (2018.01)
CPC B05B 12/087 (2013.01) [B05B 15/74 (2018.02)] 3 Claims
OG exemplary drawing
 
1. A water stream stop valve for a sprinkler, comprising:
a tube body;
an annular cover arranged on an outer periphery of the tube body;
multiple securing units arranged vertically on the outer periphery of the tube body; and
a drainage body is arranged above the tube body by multiple support plates, a hole is formed at a center of the drainage body and a diameter of the hole is smaller than a top internal diameter of the tube body;
wherein the water stream stop valve is installed in a pop-up sprinkler, and the pop-up sprinkler includes a main body, an expansion pipe arranged on the main body having a stop member arranged at a top internal diameter of the expansion pipe, a spray head arranged at a top edge of the expansion pipe; and the water stream stop valve is arranged inside the expansion pipe and below the spray head; whereby responsive to the spray head being displaced from the expansion pipe during spraying, the water stream stop valve is pushed up to the top of the expansion pipe by water pressure, stops at the stop member for avoiding an overflow of water, and maintains spraying of water, delivering a service indication stream of water.