Device for controlling incoming/outgoing of water flow of a sprinkler

• US 5,360,172 A
• Filed: 04/28/1994
• Issued: 11/01/1994
• Est. Priority Date: 04/28/1994
• Status: Expired due to Fees

• Current Assignee: Yuan MEI Corporation
• Original Assignee: Yuan MEI Corporation
• Inventors: Wang, King Y.
• Primary Examiner(s): Kashnikow, Andres
• Assistant Examiner(s): TRAINOR, CHRISTOPHER
• Application Number:
  US08/234,363
• Time in Patent Office: 187 Days
• Field of Search: 239/530, 239/583, 239/586, 251/257, 251/263
• US Class Current: 239/586
• CPC Class Codes: B05B 1/3026 the controlling element being a gate valve, a sliding valve or a cock B05B1/3006, B05B1/326 take precedence; gate valves or sliding valves in general F16K3/00; cocks in general F16K5/00

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.

Claims

1. A device for controlling incoming/outgoing of water flow of a sprinkler, comprising a control tube, a control pin fitted into said control tube for controlling water flow, a pushing block for urging said control pin to move to a lower opening position, a frame member with which said pushing block is slidably associated, and a spring for restoring said control pin to an upper closing position, wherein:

said control tube has a water incoming end and a water outgoing end, an outer surface of said control tube being formed with a rectangular recess and a pin chamber being disposed at a middle section of said recess and extends downward therefrom, said 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;

said control pin has a substantially semispherical head section, a first projecting ring section formed with an annular groove and located at an upper section of said control pin, a second projecting ring section formed with an annular groove and located at a lower section of said control pin, and a third projecting ring section formed with an annular groove and located at said lower section of said control pin below said second projecting ring section, a water sealing ring being disposed in each annular groove;

said pushing block has a bottom face formed with a depression, two lateral projecting ribs, and an inclined wall located in said depression;

said frame member is formed with an elliptic hole and a rectangular peripheral groove surrounding said elliptic hole, Whereby said spring and control pin are fitted into said pin chamber of said control tube and said pushing block is fitted into said frame member from a bottom side thereof, and said frame member is affixed on said rectangular recess of said control tube, so that said pushing block is switchable to displace said control pin between said lower opening position and said upper closing position so as to control incoming/outgoing of water flow of the sprinkler.