FLOWING WATER DETECTING DEVICE - Yamato Protec Co., Ltd.

Title:

FLOWING WATER DETECTING DEVICE

Document Type and Number:

Japanese Patent JP3655978

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide the certainty of a fire alarm by certainly prevent erroneous information at the time of momentary water passing in a flowing water control valve in a working valve type flowing water detecting device.
SOLUTION: The outside of a valve main body 2 is provided with a limit switch 24 for switchingly actuating an alarm means 32 by detecting the rotating angle of the spindle protruding end 19a of a check valve element, and a rotary body 33 for opening and closing the limit switch 24 is journalled to the above outside. A tension spring 40 for damping the opening rotary speed of a spindle and a rotary damper 45 whose one directional rotation is large in resistance load are provided between the protruding end 19a of the spindle and the rotary body 33.

Inventors:

Takeshi Hori
Mitsuhiro Kotaki

Application Number:

JP30013896A

Publication Date:

June 02, 2005

Filing Date:

November 12, 1996

Export Citation:

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