JPS638056U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a side view showing a state in which the receiving fitting and the extinguishing agent container constituting the connecting device of the extinguishing agent transfer pipe for an automatic fire extinguishing system of the present invention are connected via the inlet side extinguishing agent transfer pipe, and Fig. 2 is A plan view of the outlet-side fire extinguishing agent transfer pipe with a nozzle attached to its tip, and the receiving fitting and insertion fitting that make up the connection device, Figure 3 is a sectional view taken along line A-A in Figure 2, and Figure 4 shows the connected state. Figure 3 is a similar view, and Figures 5 and 6 are Figure 3, which shows a second embodiment of the present invention.
4 is a sectional view corresponding to the right side of FIG. 4, and FIG. 7 is a partial longitudinal sectional side view showing a conventional automatic fire extinguishing system. 1: Fire extinguisher container, 2: Bag nut, 3: Lid, 4
: Extinguishing agent transfer pipe, 5: Nozzle, 6: Siphon pipe,
7: Receiving metal fitting, 8: Inlet side extinguishing agent transfer pipe, 9: Outlet side extinguishing agent transfer pipe, 10: Insert fitting, 11: Circular hole, 11a: Large diameter part, 11b: Small diameter part, 11c:
Inclined surface, 12: Connection part, 13: Valve body, 13a: End part, 14: Through hole, 15: Sliding part, 16: Support part,
17: Packing, 18: Lid body, 19: Packing, 20: Compression spring, 21: Male screw, 22: Cap nut, 23: Opposing flange, 24: Locking groove,
25, 26: Packing, 27: Center hole.

Claims (1)

[Scope of utility model registration request] A receiving fitting having a cylindrical circular hole in which a large diameter part and a small diameter part are continuous with a mortar-like continuous part, and a piston-shaped valve body fitted inside, and the inside of the small diameter part of this receiving fitting. It is a connection device consisting of a circular tubular insertion fitting that can be freely inserted into the socket, and the inside of the large diameter part constituting the circular hole of the receiving fitting is connected to the extinguishing agent outlet of the extinguishing agent container, and the insertion fitting is inserted into the extinguishing agent outlet of the extinguishing agent container. The valve body, which can be freely connected to the outlet-side fire extinguishing agent transfer pipe leading to the jetting nozzle, and which is fitted inside the circular hole of the receiving fitting, has a sliding part that can be freely fitted into the small diameter part of this circular hole. At the same time, a passage for passage of extinguishing agent is formed in the sliding part, and between the inner surface of the circular hole located near the continuous part and the outer peripheral surface of the valve body, there is a passageway for the passage of the valve body inside the circular hole. A packing is attached to the open end of the extinguishing agent passageway that can be opened and closed during the movement, and a compression spring is installed between this valve body and a lid body that closes the opening at one end of the receiving fitting. The valve body is given elasticity in the direction of closing the opening end of the passage for passage of the extinguishing agent by the packing, and is engraved on the outer peripheral surface of the other end of the receiving fitting that is not closed by the lid body. A cap nut that can be freely engaged with a male screw is attached to the outer periphery of the insert fitting, and the cap nut is attached to at least one surface of the inner circumferential surface of the small diameter part of the receiving fitting and the outer circumferential surface of the insert fitting to be inserted into this small diameter part. Attach the packing to the locking groove formed around the entire circumference, and set the length of the above-mentioned insert fitting when the cap nut is screwed onto the male thread on the outer circumferential surface of the end of the receiving fitting and tightened. Fire extinguishing system for pressure-accumulating automatic fire extinguishing system, in which the packing provided between the outer peripheral surface of the valve body that is pressed and the inner surface of the circular hole of the receiving fitting opens the open end of the passage for passage of extinguishing agent. Connection device for agent transfer pipe.