Title:
トンネル内消火栓設備
Document Type and Number:
Japanese Patent JP6921513
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To remotely open a separately-disposed hydrant valve by an operation of a hydrant valve opening/closing lever in a hose storage part side without any necessity of mechanical connection such as a wire link.SOLUTION: A hydrant valve 72 separately disposed from a hose storage part, includes a valve opening/closing mechanism that is opened by application of a pilot pressure by a supply of a fire-fighting water to a cylinder chamber 80, and that is closed by reduction in the pilot pressure by discharge of the fire-fighting water from the cylinder chamber 80. A manual pilot valve 90 is disposed at a hose storage part side and, by opening operation of the manual pilot valve 90, the fire-fighting water is supplied via pilot pipes 86a and 86b to the hydrant valve 72. This configuration can remotely open the hydrant valve by application of the pilot pressure.SELECTED DRAWING: Figure 4
Inventors:
Kenichi Osaki
Hiroshi Umehara
Hiroshi Umehara
Application Number:
JP2016236601A
Publication Date:
August 18, 2021
Filing Date:
December 06, 2016
Export Citation:
Assignee:
Hochiki Corporation
International Classes:
A62C35/62; A62C3/00; A62C5/02
Domestic Patent References:
| JP2016073693A | ||||
| JP2002291930A | ||||
| JP2014079407A |
Attorney, Agent or Firm:
Susumu Takeuchi