JPH0461698B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] When the present invention detects a set temperature higher than normal temperature in a building such as a house or building, water is automatically spouted to provide the necessary water for initial extinguishing. This invention relates to sprinkler heads and sprinkler devices.

[Conventional technology]

One such fire extinguishing system that has been widely used in the past has a sensor that activates when a preset temperature is reached and sprays high-pressure water from the ceiling to extinguish the fire initially. Specifically, the structure is as follows. That is, the main pipe is connected to a pressurized water supply system connected to fire prevention water, and this main pipe is connected to the sprinkler head attached to the ceiling of the room of the building through the sub pipes, and when the predetermined temperature is reached, A set temperature sensor activates a solenoid valve built into the sprinkler, causing water to be squirted out of the sprinkler head.

[Problem that the invention seeks to solve]

However, in such devices, all components such as sensors and solenoid valves are operated by electricity, so if the electric wires are cut due to a fire such as an electric leak, the device may not operate or the device may stop working while the fire is being extinguished. This has caused problems such as the system sometimes stopping and making it impossible to extinguish the fire reliably. In addition, some water supplied to the sprinkler head is configured so that the pump of the pressurized water supply system is activated when this sensor is activated, so the water spout may be affected by the sensor's operation. There was a slight delay and a time lag. Furthermore, there are various other problems such as the need for a separate power source in order to eliminate the inability of the pump due to a power outage.

[Means for solving problems]

The present invention was invented for the purpose of solving the above-mentioned problems and quickly extinguishing fire in an initial stage without being related to a power outage. hole 1
A pressure-resistant sheet 12 is attached to the main body block 10 so as to close the through-hole 11, and a pressure-resistant sheet 12 is attached to the main body block 10 with the pressure-resistant sheet 12 in between. A guide block 2 in which a guide hole 23 is formed in which a movable member 30 having a sharp protrusion 31 on its extension is movably built in, and a nozzle 25 for guiding water from the through hole 11 outward is formed radially.
0 is fixed, and an operating member is inserted into the guide block 20 that acts on the movable member 30 so that the sharp protrusion 31 projects into the through hole 11 when the temperature exceeds a set temperature. A temperature-sensitive agent 40 that is disposed between the guide block 20 and the movable member 30 in the guide hole 23 and changes from solid to liquid when a preset temperature is reached, and a spring 41 that always elastically biases the movable member 30. a spring made of or made of a shape memory alloy;
Reliable sprinkler head operation over temperature. In addition, by connecting the accumulator tank 3 to the main pipe 4 communicating with the sprinkler head 6 of this configuration and connecting the pump 1 to the accumulator tank 3 via the check valve 2, the sprinkler This allows the device to respond quickly.

[Effect]

Water supplied under pressure from the fire prevention water by the pump 1 is stored in the accumulator tank 3 at a predetermined pressure. This water reaches the sprinkler head 6 through pipes 4 and 5 connected to the sprinkler head 6 attached to the ceiling of each room, hallway, and other necessary locations in the building. The water having a predetermined pressure is blocked from being ejected by the pressure-resistant sheet 12. On the other hand, the movable member 30 having a sharp protrusion 31 at its tip is configured in advance so that no acting member acts within the guide block 20. In this state, if a fire occurs indoors, the temperature will rise rapidly. As a result, when the preset temperature is reached, the action member acts, and the moving member 30 moves the sharp protrusion 31 onto the pressure sheet 1.
Move so as to pierce 2. As a result, the pressure sheet 12 ruptures, and the water that has been blocked until now is ejected from the through hole 11 through the nozzle 25 and sprayed into the room.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings. In FIG. 3, 1 is a pump that pressurizes water from fire prevention water to a predetermined pressure, and this pump 1 is connected to an accumulator tank 3 via a check valve 2.
is connected. This accumulator tank 3 stores water pressurized to a predetermined pressure, and is connected to a main pipe 4 for supplying this water into the building. Sub pipes 5 are branched and connected to the main pipe 4 in accordance with the sprinkler heads 6 required for each room.
A sprinkler head 6 is attached to the.

As shown in FIG. 1, a main body block 10 of a sprinkler head 6 attached to the ceiling 7 is fixed to the sub pipe 5, and this sub pipe 5 is connected to one side of a through hole 11 formed in the main body block 10. is connected to. A pressure-resistant sheet 12 made of fluororesin, rubber, or plastic is attached to the other side of the through hole 11.
The end of 1 is closed. Further, a guide block 20 having a flap-shaped umbrella 21 is fixed to the main body block 10 with the pressure sheet 12 in between, and the guide block 20 has the through hole 11 fixed thereto.
An operating section 22 is provided in which a guide hole 23 having the same center line as the operating section 22 is formed. In this operation part 22, a plurality of nozzles 25 which communicate with the through hole 11 when the pressure-resistant sheet 12 is removed are radially bored diagonally downward along the outer periphery of this operation part 22.

Further, a moving member 30 is inserted into the guide hole 23 and is movable upward along the center line.
This moving member 30 has a bar member 32 having a sharp protrusion 31 integrally formed at the tip facing toward the pressure sheet 12 . This sharp protrusion 31 has a movement distance sufficient for the tip to break through the pressure sheet 12, and there is a gap between this moving member 30 and the end surface of the guide hole 23 of the guide block 20, which is set in advance to be higher than room temperature. A solid temperature-sensitive agent 40 that liquefies only at high temperatures is fitted. Furthermore,
The moving member 30 has a small hole 33 through which the temperature-sensitive agent 40 passes in the form of a liquid.
A spring 41 is disposed between the movable member 30 and the movable member 30. Also, guide block 2
The operation part 22 and lid body 24 of 0 have communication holes 22 for quickly transmitting changes in outside temperature to the guide holes 23.
a and 24a are formed respectively.

Next, the operation of this embodiment will be explained. Water is pressurized by the pump 1 and passes through the check valve 2 in the route shown in FIG. Water is stored in a humerator tank 3. On the other hand, the movable member 30 having a sharp protrusion 31 integrally fixed to a bar 32 at its tip is always elastically biased by a spring 41 so that the sharp protrusion 31 always pierces the pressure sheet 12 in the guide hole 23 of the operating section 22. The moving member 30 is prevented from moving by a solid temperature sensitive agent 40 disposed between it and the upper surface of the guide hole 23 so that the sharp protrusion 31 does not touch the pressure sheet 12.

In this way, when a fire breaks out indoors with this device attached to the ceiling 7 of each room and hallway of the building, the temperature inside the room will rise rapidly. As a result, when the room temperature reaches the set temperature of the temperature-sensitive agent 40, the temperature-sensitive agent 40 liquefies, and as shown in FIG. is moved by the spring 41, and the sharp protrusion 31 pierces the pressure sheet 12, causing it to burst. At this time, the liquefied temperature-sensitive agent 40 moves toward the spring 41 side of the guide hole 23. As a result of this action, the water, which had been prevented from being supplied while being pressurized, flows from the through hole 11 to the nozzle 25.
The water passes through the water, is ejected, and is sprayed indoors. At this time, the sprinkled water is transferred to the umbrella 21 of the guide block 20.
Since the water collides with the water, the water is evenly sprayed downward.

In this embodiment, the operating member for operating the sharp protrusion 31 that breaks the pressure sheet 12 is operated by a spring 41 that elastically biases the movable member 30 so that the sharp protrusion 31 moves forward, and the movable member 30 is operated to reach a set temperature. It is composed of a solid temperature-sensitive agent 40 that blocks up to
The present invention is not limited thereto, and a shape memory alloy spring (not shown) which is adapted to deform the operating member at a set temperature higher than room temperature may also be used.

〔Effect of the invention〕

As is clear from the embodiments described above, the present invention provides through holes 11 in the pipes 4 and 5 that communicate with the pipes 4 and 5.
A pressure resistant sheet 12 is attached to the main body block 10 so as to close the through hole 11.
A movable member 3 having a sharp protrusion 31 on an extension of the through hole 11 is disposed on the main body block 10 with 2 in between.
A guide block 20 is formed with a guide hole 23 in which a movable tube 0 is built in, and a nozzle 25 radially formed to guide water from the through hole 11 to the outside.
is fixed, and an operating member that acts on the movable member 30 is inserted into the guide block 20 so that the sharp protrusion 31 projects into the through hole 11 when the temperature exceeds a set temperature.

Therefore, all operating parts of this operating section operate mechanically, so they can operate regardless of power outages, and in particular, they cannot operate accurately even in the event of a fire caused by an electrical leak. , works effectively for initial fire extinguishing. Furthermore, the device does not stop operating during the process of extinguishing a fire, and reliable fire extinguishing work can be achieved. Further, since a spring, a solid temperature-sensitive material, a spring made of a shape memory alloy, or the like is used as a working member, the structure becomes simple and compact.

Furthermore, by connecting the accumulator tank 3 to the main pipe 4 communicating with the sprinkler head having such an effect, and connecting the pump 1 to the accumulator tank 3 via the check valve 2, Since the water supplied to the sprinkler head is always under a predetermined pressure, as soon as the temperature reaches the set temperature, water will be ejected and sprayed where needed, making it possible to quickly extinguish the fire in the initial stage. Remarkable effects such as

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional front view showing a sprinkler head, and FIG.
The first diagram shows the operational status of the sprinkler head.
FIG. 3 is a cross-sectional front view similar to that shown in the figure, and FIG. 3 is a system diagram showing the system of the present invention. 1 is the pump, 2 is the check valve, 3 is the accumulator tank, 4 is the main pipe, 5 is the sub pipe, 6 is the sprinkler head, 7 is the ceiling, 10 is the main block, 11 is the through hole, 12 is the pressure resistant sheet , 20
is a guide block, 21 is an umbrella, 22 is an operating section, 2
2a is a communication hole, 23 is a guide hole, 24 is a lid body, 2
4a is a communication hole, 25 is a nozzle, 30 is a moving member,
31 is a sharp projection, 32 is a bar, 33 is a small hole, 4
0 is a temperature sensitive agent, 41 is a spring.

Claims (1)

[Claims] 1. A sub pipe 5 branched from the main pipe 4.
A main body block 10 having a through hole 11 communicating with the main body block 10 is fixed thereto, a pressure sheet 12 is attached to this main body block 10 so as to close the through hole 11, and a pressure sheet 12 is attached to the main body block 10 with this pressure sheet 12 in between. 10, a guide hole 23 is formed on an extension of the through hole 11, in which a movable member 30 having a sharp protrusion 31 is movably built in, and a nozzle 25 for guiding water from the through hole 11 outward is formed radially. The guide block 20 is fixed, and an operating member that acts on the movable member 30 is inserted into the guide block 20 so that the sharp protrusion 31 projects into the through hole 11 when the temperature exceeds a set temperature. sprinkler head. 2 The working members are the guide block 20 and the guide hole 3
The temperature sensitive agent 40 is disposed between the moving member 30 in the 0 and changes from a solid to a liquid when a preset temperature is reached, and a spring 41 always elastically biases the moving member 30. A sprinkler head as claimed in claim 1. 3. The sprinkler head according to claim 1, wherein the acting member is a spring made of a shape memory alloy. 4 Sub pipe 5 branched from main pipe 4
A main body block 10 having a through hole 11 communicating with the main body block 10 is fixed thereto, a pressure sheet 12 is attached to this main body block 10 so as to close the through hole 11, and a pressure sheet 12 is attached to the main body block 10 with this pressure sheet 12 in between. 10, a guide hole 23 is formed on an extension of the through hole 11 in which a movable member 30 having a sharp protrusion 31 is movably built in, and a nozzle 25 for guiding water from the through hole 11 outward is formed in a radial manner. The guide block 20 is fixed, and the movable member 30 is placed inside this guide block 20.
When the temperature exceeds the set temperature, the sharp protrusion 31 closes the through hole 1.
A working member acting on the movable member 30 is inserted so as to protrude into the main pipe 4, and an accumulator tank 3 is connected to the main pipe 4, and the pump 1 is connected to the accumulator tank 3 via a check valve 2. A sprinkler device, characterized in that: