JPH054846Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to sprinkler fire extinguishing equipment.

[Conventional technology]

Sprinkler fire extinguishing equipment is extremely effective equipment in which the sprinkler head installed on the ceiling is constantly filled with pressurized fire extinguishing water, the sprinkler head opens due to the heat of a fire, and pressurized water is immediately released to extinguish the fire. It is.

[Problems with conventional technology]

However, once the water discharge has started, it is necessary to close the control valves installed on each floor in order to stop it, which takes time, and in buildings with many tenants. Some people did not know about control valves, and although the fire was extinguished, the problem was that subsequent water damage would be large.

In order to prevent such water damage, a control valve is installed inside the sprinkler head, and the valve is opened at a predetermined temperature to begin discharging water, and when the ambient temperature drops, the valve is closed again to stop discharging water, a so-called on-off sprinkler head. However, the structure is complicated and expensive, and there is a risk that the valve will close due to the drop in ambient temperature due to water spraying, making it impossible to reliably extinguish the fire.

[Means for solving problems]

In view of the above-mentioned drawbacks, this invention aims to provide an inexpensive emergency water discharge stop device that can be easily installed in the piping to which the closed sprinkler head is connected. In sprinkler fire extinguishing equipment that is filled up to The present invention is made up of a cutoff ball, a wire connected to the cutoff ball and moored at a position where the cutoff ball does not interfere with water flow through the piping member at all times, and a locking means provided at the other end.

[Effect]

When the sprinkler head is opened due to a fire, the fire is extinguished, and the cutoff bulb secured by the flexible wire is released, the cutoff ball blocks the water outlet of the sprinkler head or the small diameter part of the piping and releases water. will be stopped immediately.

〔Example〕

The first to second embodiments of the device of this invention will be described below.
This will be explained using figures. In FIG. 1, a sprinkler head 1 is provided with a water outlet 2 and a thermal dissociation mechanism 3 for closing the water outlet 2.

This head 1 is installed on the ceiling of a hotel guest room or the like, and is connected to a pipe 7 through which fire extinguishing water is supplied via a reducer 4, a nipple 5, and a T-joint 6 as pipe members.

Among the piping members inserted between the water outlet 2 of the sprinkler head 1 and the piping 7, a shutoff ball 8 is provided at the top of the T-joint 6 that does not interfere with water flow, and its surface is coated with rubber or the like. is lined, and its diameter is slightly larger than the water outlet 2 of the head 1.

Reference numeral 9 denotes a flexible wire connected to the blocking bulb 8, and a ring 10 is provided at the other end.
The ring 10 is locked to a ring stopper 12 of an operation box 11 provided on a wall of the passenger compartment, thereby forming a locking means. Further, 13 is a ring holder.

Next, the operation of this device will be explained. The sprinkler head 1 is opened due to the heat generated by the fire, and fire extinguishing water is sprayed to extinguish the fire. After confirming that the fire has been extinguished, immediately open the operation box 11 on the wall and open the ring 10.
When the ball is removed from the ring stopper 12, the shutoff ball 8 falls along with the flow of fire extinguishing water, and the water discharge port 2 of the sprinkler head 1 is closed as shown by the dotted line, thereby stopping the water discharge. Note that the ring 10 is received by a ring receiver 13.

In addition, even if the thermal dissociation mechanism 3 of the head 1 is destroyed by the tip of the baggage carried by the customer and the cap is opened, if the operator box 11 is immediately opened and the ring 10 is removed from the ring stopper 12, the shutoff ball 8 will fall and the sprinkler head will be closed. 1 water outlet 2 is closed and water discharging is stopped.

FIG. 2 shows another embodiment of this invention, in which a small-diameter pipe 22 and a large-diameter pipe 23 are connected via a reducer 21, which is a piping member, and a plurality of closed sprinkler heads 24 are connected to the small-diameter pipe 22. provided. Further, the large-diameter pipe 23 is connected to a water supply device such as a pump, and a shutoff bulb 25 is provided near the reducer 21. This blocking ball 25 is the first
Similar to the device shown in the figure, it is locked with an operation box 27 via a flexible wire 26.

In this case as well, when the operation box 27 is opened and the locking of the shutoff ball 25 is released, the shutoff ball 25 falls and moves to block the reducer 21 and water discharging is stopped. The device of this embodiment has a plurality of heads installed indoors, and when one of the heads is opened, it is economical because it does not need to be installed individually as shown in Figure 1 in order to stop the water discharge in an emergency. be.

Although the above embodiment has been explained using a hotel guest room as an example, it can also be installed in an important location such as a jewelry store or a reference room.

〔effect〕

As explained above, the device of this invention includes a piping member and a small-diameter part of the piping member or a shut-off ball that blocks the water discharge port and the shut-off ball between the water discharge port of the sprinkler head and the piping. A device is inserted, which consists of a wire that is connected to the cut-off bulb and is moored at a position where it does not interfere with the water flow of the piping member at all times, and a locking means provided at the other end. However, the present invention has the effect of providing an emergency water discharge stop device for sprinkler equipment that is simple in structure, inexpensive, and can be operated at hand to stop water discharge, minimizing water damage.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of one embodiment of this invention, and FIG. 2 is a schematic diagram of another embodiment. 1, 24...closed sprinkler head, 2...
...Water outlet, 3...Thermal dissociation mechanism, 4,21...Register, 5...Nipple, 6...T joint, 7,2
2, 23... Piping, 8, 25... Shutoff ball, 9, 2
6...Flexible wire, 10...Ring, 1
1, 27...Operation box, 12...Ring stop, 13
...Ring receiver.

Claims (1)

[Scope of utility model registration request] In a sprinkler fire extinguishing system in which fire extinguishing water is filled through piping up to a closed sprinkler head at the terminal, this device is inserted between the connection between the above-mentioned piping and the water outlet of the closed sprinkler head, and is characterized in that it comprises a piping member, a shutoff ball which closes the small diameter part of the piping member or the above-mentioned water outlet, a wire connected to the shutoff ball and mooring the shutoff ball in a position so as not to interfere with the flow of water through the piping member at all times, and a locking means provided at the other end.