JP2002282382A - Sensitive mechanism for deluge valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability during installation by eliminating any jobs such as iron pipe cutting, screw threading, insertion of screwed-in seals, and the like, and furthermore to reduce labor costs as well as to be free from a fear of freezing by eliminating a process of filling water. SOLUTION: The interval between a deluge valve 1 and a thermosensitive operation part 5 as well as that between the operation parts 5, are linked with a wire 4. The operation part 5 reacts to a fire heat to release linking of one end of the wire 4 or both opposite ends of the wire 4, which lets the deluge valve 1 open.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alternative to a sensing pipe of a simultaneous opening valve used in sprinkler equipment, foam fire extinguishing equipment, and the like, that is, to a sensing mechanism of a simultaneous opening valve.

[0002]

In the conventional sensing pipe of the simultaneous opening valve, since the pipe is an iron pipe and water is put in the pipe, work such as cutting of the iron pipe, thread cutting, and inserting a screw-in seal in the pipe work. There is a problem that not only does the pipe work need to be carried out due to the necessity of implementation, but also there is a risk of freezing, which hinders the fire detection.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem, and the use of a wire eliminates the necessity of cutting an iron pipe, cutting a screw, and inserting a screw-in seal. In addition to improving the workability, the step of watering is eliminated, so that not only the cost such as labor costs can be reduced, but also there is no danger of freezing.

[0004]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 One embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an overall view, and FIG. 2 is an enlarged view showing the heat-sensitive operating section of FIG.

In the figure, 1 is a simultaneous release valve, 2 is a start valve of the simultaneous release valve 1, 3 is an arm of the start valve 2,
Reference numeral 4 denotes a wire for pulling the arm 3 against a restoring force (for example, a pulling force by a spring). Reference numeral 5 denotes a heat-sensitive operating portion disposed between the two wires 4 so as to connect the wire 4. It is composed of a low-melting metal 7 connecting both ends of the wire 4 facing each other inside the envelope 6.

In the installed state as shown in FIG. 1, the wire 4 is tensioned to pull the arm 3 of the starting valve 2 against the return force. When the low-melting metal 7 of the heat-sensitive operating unit 5 is melted by the heat of the fire, both ends of the wire 4 are separated inside the envelope 6 and the tension of the wire 4 is released. Due to the return force, the rotary valve is rotated to the position indicated by the dotted line in FIG.

As shown in FIG. 1, when a single wire 4 provided with a heat-sensitive operating part 5 is brought to the site, it is only necessary to connect it to the arm 3 of the starting valve 2 at the site, and the workability at the time of installation is improved. You get better and you don't have to water it.

Embodiment 2 In the first embodiment, the heat-sensitive operating portion 5 has a structure having the low-melting metal 7 shown in FIG. 2, but both ends of the wire 4 are bundled with a melting cord 8 such as nylon as shown in FIG. May be connected. In this case, since the wires 4 are simply cut and bundled with the cords 8 at the site, it is possible to perform the application with good application.

Embodiment 3 In the first embodiment described above, the starting valve 2 is used as a means for opening the simultaneous opening valve 1. However, as shown in FIG.
And the arm 9 may be directly driven by the wire 4.

[0010]

As described above, according to the present invention, since a wire is used, it is not necessary to cut an iron pipe, cut a screw, insert a screw-in seal, etc., thereby improving workability at the time of installation and spreading water. This eliminates the need for steps and reduces costs such as personnel costs, and also eliminates the possibility of freezing.

[Brief description of the drawings]

FIG. 1 is an overall view showing a first embodiment of the present invention.

FIG. 2 is an enlarged view showing a heat-sensitive operation unit of FIG.

FIG. 3 is a main part view showing a second embodiment of the present invention.

FIG. 4 is a main part diagram showing a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Simultaneous release valve 2 Start-up valve 3 Arm 4 Wire 5 Heat-sensitive operation part 6 Enclosure 7 Low melting metal 8 Melting cord

Claims (1)

[Claims] 1. A wire is connected between the simultaneous release valve side and the heat-sensitive operating part and between the heat-sensitive operating parts by wires.
The heat-sensitive operating portion is operated by fire heat to release the connection of one end of the wire or both ends of the opposing wire, and the simultaneous release valve is opened by this release. Simultaneous release valve sensing mechanism.