US 7,258,286 B1Granted

Water shutoff and discharge control device for sprinklers

AssigneeYuan Mei Corp.

InventorsKing Yuan Wang, Shun Nan Lo, Chi Han Cheng

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Abstract

A water shutoff and discharge control device for sprinklers comprises a water intake assembly mounted to a support seat and swung back-and-forth by a sprinkling control assembly wherein the water intake assembly has a tube with multiple bores drilled thereon for the mounting of a sealing strip equipped with multiple spray nozzles and water-sealing areas. Both end sections of the tube are disposed multiple control channels each connecting to the interior of the tube for the extension of a control shaft with a plug mounted thereto. Each plug having an inlet aperture and an abutment surface is corresponded to a water-sealing area of the sealing strip to reveal a movement space there-between, permitting the plug flushed by the water flow to climb upwards and, depending on the movement of the control shaft, to switch in position relative to the spray nozzle for easy control of water shutoff or discharge thereby.

Claims14

Dependent claims

A water shutoff and discharge control device for sprinklers, comprising a sprinkler wherein a water intake assembly is equipped with a tube having a top side defined by a platform, and the platform has a plane surface defining the internal wall and a plurality of bores drilled thereon for the mounting of a sealing strip equipped with a plurality of spray nozzles and a base;

a water-sealing ring and a water-sealing area are respectively disposed protruding around an outer periphery of each said spray nozzle on a top and bottom surface of the base thereof, and the water-sealing ring is closely abutted against the internal plane surface of the platform;
on, both end sides of the platform are disposed multiple control channels each communicating with the tube for the extension of a control shaft there-through with a plug mounted thereto;
wherein the water shutoff and discharge control device for sprinklers is characterized by that the plug is situated to precisely correspond to the water-sealing area of the sealing strip with a movement space preset there-between, and on both sides of the plug are respectively disposed an inlet aperture and an abutment surface, permitting the plug flushed by the water flow to climb upwards and abut tight against the water-sealing area;
therefore, depending on the sliding movement of the control shaft, the inlet aperture and the abutment surface of the plug will be switched in position to respectively correspond to the spray nozzle thereof, achieving control of water shutoff and discharge;
whereby the control shaft can be smoothly slid in an easy manner;
even when the control shaft is moved in the state of water discharge, the plug is abutted against the water-sealing area, reducing the contact area between the control shaft and the sealing strip and, thus, cutting down the frictional coefficient there-between for more efforts-saving operation of the control shaft.

3 more elements

A water shutoff and discharge control device for sprinklers wherein a sprinkler comprises a water intake assembly transversely mounted to a support seat thereon and actuated by a sprinkling control assembly to swing back-and-forth into different angles;

the water intake assembly is equipped with a tube having a top side defined by a platform, and the platform has a plane surface defining the internal wall and a plurality of bores drilled thereon for the mounting of a sealing strip equipped with a plurality of spray nozzles and a base;
around the outer periphery of each spray nozzle on the top and bottom surfaces of the base thereof are respectively disposed a water-sealing ring and a water-sealing area, and the water-sealing ring is abutted watertight against the internal plane surface of the platform therewith;
on, both end sides of the platform are disposed a plurality of control channels each connecting to the interior of the tube for the extension of a control shaft there-through;
the control shaft has a flat surface levelly cut thereon to precisely abut tight against the water-sealing area of the sealing strip thereby, and a water-intake area is indented at an appropriate position of the flat surface thereon wherein the flat surface of the control shaft is allowed to slide along the water-sealing area of the sealing strip and move back-and-forth within the control channel of the tube so as to reduce the contact area there-between, permitting more efforts-saving operation of the control shaft thereby;
therefore, depending on the sliding movement of the control shaft, the water-intake area and the flat surface of the control shaft will be switched in position to respectively correspond to the spray nozzle and the water-sealing area thereof, achieving easy control of water discharge thereby.

2 more elements

Dependencies are inferred from the claim text.