JPH10272207A - Close type sprinkler head forcedly opening device and extinguishing equipment with it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To instantly open a head as soon as starting by constituting a heat sensing part breaking mechanism so as to give external force to a heat sensing part by fluid pressure to break. SOLUTION: At the time of opening a manual starting valve 9 at the time of a fire, a foaming solution passes through a feeding pipe 8 and flows into a cylinder container 2 through the feeding port 7 of a forcedly opening device 1. A piston part 3 moves upward against the spring force of a spring 3a by the solution pressure. Thereby, a stopper 5 is pulled out from the stopper insertion hole 4a of a breaking pin 4. Then, the moving regulation of the pin 4 is released and the pin 4 moves in the direction of an arrow A1 by the spring force of the spring 6. At this time, the hook part and the projecting part of the pin 4 break a glass valve 11 to open a heat 10 to discharge the foaming solution. Then, the heat is instantly opened as soon as starting.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forcible opening device for forcibly opening a closed sprinkler head that is normally kept closed by a heat-sensitive portion.

[0002] The present invention also relates to a fire extinguisher equipped with the forced opening device.

[0003]

2. Description of the Related Art A closed-type sprinkler head in which a discharge port is kept closed by a heat-sensitive part uses a solder or a glass bulb as the heat-sensitive part. It constitutes a part of a link mechanism for maintaining the closed state of the head, and in the event of a fire, when the solder, glass bulb, or the like is melted or ruptured by heat, the closed state of the head by the link mechanism is released and the head is released. Are automatically opened.

In a fire extinguishing system equipped with such a closed sprinkler head, when a fire occurs, the head is forcibly opened at an early stage of the fire before the head is automatically opened by the heat. Some devices have a head forced opening device.

As the head forcible opening device, for example, a heater is provided in the vicinity of a heat-sensitive portion of a head, a power supply and an energizing switch are connected to the heater, and the energizing switch is turned on to cause the heater to generate heat. In some cases, the ambient temperature of the head is raised to forcibly open the head by melting or bursting the heat-sensitive part, that is, the solder or glass bulb.

[0006]

However, in the above-described conventional head forcible opening device, even if the opening device is started, that is, the heater is heated by turning on the energizing switch, the heat-sensitive portion is not heated. It takes a certain amount of time to raise the ambient temperature until the heat-sensitive part, ie, the solder or glass bulb is melted or ruptured.

Therefore, the conventional head forcible opening device cannot immediately open the head after its activation.

In view of the above circumstances, an object of the present invention is to provide a forcible opening device for a closed-type sprinkler head that can open the head immediately after startup.

It is another object of the present invention to provide a fire extinguishing system equipped with the forcible opening device for the closed type sprinkler head.
It is.

[0010]

According to the present invention which achieves the above object, it is used for a closed type sprinkler head which is kept closed by a heat-sensitive part,
A closed-type sprinkler head forced-opening device for forcibly opening the closed-type sprinkler head, wherein the closed-type sprinkler-head forced-opening device applies an external force to a heat-sensitive portion of the closed-type sprinkler head by a pressure of a fluid, The apparatus is provided with a heat-sensitive part breaking mechanism that moves so as to break the heat-sensitive part.

A closed sprinkler head which is kept closed by a heat-sensitive portion, a sprinkler pipe to which the closed sprinkler head is connected, and a closed sprinkler head forcibly opening the closed sprinkler head. This is a fire extinguisher equipped with an opening device.

According to the closed-type sprinkler head forcible opening device and the fire extinguishing equipment provided with the same, if the heat-sensitive part breaking mechanism in the forcible opening device is moved by the pressure of the fluid, that is, the forcible opening device is activated. In this case, the heat-sensitive portion breaking mechanism in the forced opening device applies an external force to the heat-sensitive portion of the head to break the heat-sensitive portion. If the heat-sensitive part is destroyed, the closed state of the head is released and the head is opened.

Therefore, the head can be immediately opened by activating the heat-sensitive portion destroying mechanism, that is, by activating the forcible opening device.

Further, by moving the heat-sensitive part breaking mechanism by the pressure of the fluid, the electric connection part can be eliminated, for example, in comparison with the above-mentioned conventional forced opening device requiring electric energy. Therefore, construction of the equipment and maintenance after the construction are easy, and the reliability as the equipment is also good.

In the closed sprinkler head forcible opening device, the heat-sensitive portion breaking mechanism preferably moves by the pressure of the fire extinguishing fluid in the sprinkler pipe to which the closed sprinkler head is connected.

If the heat-sensitive portion destruction mechanism is moved by the pressure of the fluid in the sprinkler pipe, there is no need to separately provide an energy source, and the equipment can be simplified.

[0017]

FIG. 1 shows a first embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 shows a foam fire extinguisher S, in which a closed foam sprinkler head 10 is connected to a sprinkler pipe 20 filled with a foam aqueous solution as an example of a fire extinguishing fluid. . The head 10 includes a glass bulb 11 as an example of a heat-sensitive part, an arm 13, a deflector 14, and the like.
Is kept closed.

A forced opening device main body 1 is provided near the head 10 as an example of a heat sensitive portion destruction mechanism. The forcible opening device main body 1 includes a cylinder container 2
And a piston 3 housed in the container 2 and movable in a vertical direction, and a spring 6 provided below the piston 3 and movable in a horizontal direction and serving as an example of elasticity of an elastic body. A breaking pin 4 that moves in the A1 direction and breaks the glass bulb 11;

The piston portion 3 housed in the cylinder container 2 is normally urged downward by a spring 3a to be located at a lower position, and when a fluid is supplied into the cylinder container 2, It is provided so as to move upward by the pressure of the fluid.

The breaking pin 4 is provided so as to be able to move in the lateral direction as described above, but in a normal state, the stopper 5 provided at the lower end of the piston 3 is inserted into the stopper of the breaking pin 4. In the state inserted in the hole 4a,
Although it is urged in the direction of arrow A1 by the elastic force of the spring 6, its movement is regulated by the stopper portion 5.

Accordingly, when the fluid is supplied into the cylinder container 2 and the piston portion 3 moves upward, and the stopper portion 5 comes out of the stopper insertion hole 4a of the breaking pin 4, the breaking pin 4 moves. Is released, and the spring 6 moves in the direction of the arrow A1.

As shown in FIG. 2, the breaking pin 4 has a notch 4c formed at the tip thereof so as to form a hook 4b, and the hook 4b has a sharp tip. A protrusion 4d is provided.

Further, as shown in the figure, the position of the head 10 and the main body 1 of the forcible opening device are adjusted so that the glass bulb 11 of the head 10 is located in the notch 4c of the breaking pin 4.

As a result, when the restriction of the movement of the breaking pin 4 is released and the breaking pin 4 moves in the direction of arrow A1, the glass bulb 11 is broken by the hooks 4b and the protrusions 4d of the breaking pin 4. When the glass bulb 11 is broken, the external force of the breaking pin 4 is applied only to the glass bulb 11, so that no external force is applied to other parts, for example, the deflector 14 of the head 10.

A supply port 7 is formed in the main body 1 of the forcible opening device so that a fluid can be supplied into the cylinder container 2. The supply port 7 is connected to a sprinkler pipe 20. The supply pipe 8 for supplying a fluid into the cylinder container 2 is connected to the supply pipe 8. In this supply pipe 8,
Normally, the supply of the fluid into the cylinder container 2 of the forced opening device main body 1 is maintained in a stopped state, and the supply of the fluid to the cylinder container 2 is released and the supply of the fluid is started. A manual start valve 9 which is closed at the time is provided. Therefore, in normal times, the supply pipe 8
Means that the space from the connection with the sprinkler pipe 20 to the start valve 9 is filled with the aqueous foam solution.
The starting valve 9 in the supply pipe 8 is provided so as to be located at a height that can be manually operated, for example, at a height of about 1.5 meters from the floor surface.

As the energy source for the movement of the forcible opening device body 1, instead of the fire extinguishing fluid in the sprinkler pipe 20, for example, a cylinder filled with a pressurized fluid is provided. The pressure of the fluid may be used.

As described above, the forcible opening device main body 1 composed of the cylinder container 2, the piston portion 3, the breaking pin 4 and the like, the supply pipe 8 connected to the forcible opening device main body 1 and having the manually activated valve 9, etc. Thereby, a forced opening device of the closed type sprinkler head is configured.

In this embodiment, the head 10 connected to the sprinkler pipe 20 is a pipe that can move up, down, left and right, for example, a plurality of pipes rotatably connected via a universal joint. , A so-called dogleg pipe 12.

By doing so, the position of the head 10 can be freely adjusted, and the position of the head 10 and the forced opening device main body 1 can be easily adjusted.

The piping that can be moved up, down, left and right includes:
Instead of the dogleg pipe 12, for example, a bendable flexible pipe may be used.

Reference numeral 15 denotes a flowing water detecting device which detects flowing water in the sprinkler pipe 20 and outputs a flowing water signal, 16 a mixer for mixing water and foam concentrate, 17 a foam concentrate tank containing the foam concentrate, 18 is a pressure air tank for pressurizing the inside of the sprinkler pipe 20 to a predetermined pressure, 19 is a pressure switch that operates when the pressure in the pressure air tank 18 falls below a predetermined value, and 21 is a sprinkler pipe. A pump for pumping water into the pipe 20, 22 is the pump 21
A water tank 23 in which water pumped into the sprinkler pipe 20 is stored by the pressure air tank 18 receives a pressure drop signal in the sprinkler pipe 20 output through the pressure switch 19. Then, the receiver outputs a start signal to the pump 21.

The operation of the first embodiment will be described.

In the event of a fire, the manual start valve 9 is operated and the start valve 9 is opened. The foam aqueous solution flows into the cylinder container 2 through the supply port 7 in the forced opening device main body 1 through the supply pipe 8, and the pressure of the flowing foam aqueous solution overcomes the spring force of the spring 3a and moves the piston portion 3 upward. To move the piston portion 3 upward. When the piston portion 3 moves upward, the stopper portion 5 of the piston portion 3 comes out of the stopper insertion hole 4a of the breaking pin 4 accordingly.
Then, the regulation of the movement of the breaking pin 4 is released, and the breaking pin 4 moves in the direction of the arrow A1 by the elastic force of the spring 6, and at this time, the hook 4b and the projection 4d of the breaking pin 4 break the glass bulb 11 of the head 10. . The head 10 has its glass bulb 11
When is destroyed, the closed state is released and becomes an open state, and the aqueous foam solution is released as foam. At this time, the breaking pin 4 has moved to a position where it does not interfere with the release of bubbles from the head 10.

As described above, since the forcible opening device main body 1 moves so as to break the glass bulb 11, if the forcible opening device main body 1 starts to move, that is, if the forcible opening device main body 1 starts up. The head 10 can be immediately opened.

When bubbles are released from the head 10, the flowing water detecting device 15 outputs a flowing water signal and the pressure switch 1
9 detects a pressure drop in the pressurized air tank 18, outputs a pressure drop signal to the receiver, receives a start signal from the receiver 23, starts the pump 21 and starts the water in the water tank 22 into the pipe 20. Supply. The water supplied into the pipe 20 is mixed by the mixer 16 with the foam concentrate in the foam concentrate tank 17 at a predetermined ratio to form a foam aqueous solution, which is supplied to the head 11.

A second embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

The difference from the first embodiment is that an arrow A replaces the breaking pin 4 in the first embodiment.
The point is that a breaking pin 40 that is rotatable in two directions is provided. The breaking pin 40 is provided in a direction perpendicular to the breaking pin 40, and the shaft pin insertion hole 40a of the breaking pin 40 is provided.
The pivot pin 41 is provided so as to be rotatable in the direction of the arrow A2 by the restoring force of the mainspring spring 42. The breaking pin 40 is provided at the normal The stopper portion 5 is inserted into a stopper insertion hole 40b of the breaking pin 40,
The rotational movement of the breaking pin 40 is restricted.

As shown in FIG. 4, the breaking pin 40 has a curved portion 40c formed at the tip thereof.
The position of the head 10 and the forcible opening device main body 1A are adjusted so that the glass bulb 11 of the head 10 is located in the rotation locus of the head 10.

As a result, when the regulation of the rotational movement of the breaking pin 40 is released and the breaking pin 40 is rotated about the shaft pin 41 in the direction of the arrow A2, the glass bulb 11 is broken by the curved portion 40c of the breaking pin 40. It will be. In addition,
By providing a curved portion 40c on the breaking pin 40 and increasing the distance between the breaking pin 40 and the glass bulb 11, when the glass bulb 11 ruptures due to the heat of fire and releases water, the breaking pin does not hinder the water discharge. . After the glass bulb 11 ruptures due to the heat of the fire, the starting valve 9 is opened to release the breaking pin 40.
May be removed from the water discharge channel.

Another difference is that, in the second embodiment, the dogleg pipe 1 in the first embodiment is different from that of the first embodiment.
2 is provided between the head 10 and the pipe 20,
The point is that a dogleg pipe 43 is provided between the supply pipe 8 and the pipe 20.

Still another difference is that a string 9a is provided so that the starting valve 9 can be opened and closed so that the starting valve 9 can be remotely operated. By doing this,
Since the starting valve 9 itself may be at a high position, the piping can be simplified. The starting valve 9 may be constituted by an electric valve, and a push button for opening the electric valve may be provided in the protection area.

This makes it possible to freely adjust the position of the main body 1A of the forcible opening device, and to easily adjust the position of the head 10 and the main body 1A of the forcible opening device as in the first embodiment. Can be.

It is needless to say that a bendable flexible pipe may be used in place of the dogleg pipe 43. In addition, the breaking pin having the operation is, for example, 270.
A stopper for the breaking pin that stops when it is rotated by one degree may be provided in the forced opening device main body 1A.

A third embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the first or second embodiment, when a fluid is supplied into the cylinder container 2, the pressure causes the piston portion 3 to move upward, so that the breaking pin 4 or 4 is used.
0 is released, and the breaking pin 4 or 40 is moved by the elastic force of the spring 6 or the spring 42 to break the glass bulb 11, but in the third embodiment, the fluid The glass valve 11 is intended to be broken directly by the piston portion 30 which moves by the pressure of.

That is, in the forcible opening device main body 1B, the cylinder container 32 has an opening 32a on the side facing the fluid supply port 37.
2, the same direction as the inflow direction of the fluid, that is, the arrow A3
The piston part 30 movable in the direction is accommodated. The piston portion 30 has a fluid receiving portion 30a formed at a base end portion, that is, an end portion on the fluid receiving side.
Is provided so as to be in close contact with the inner surface of the cylinder container 32. The piston portion 30 is normally urged toward the supply port 37 by a spring 33 when the fluid flows into the cylinder container 32 from the supply port 37 in normal times. 30a will receive pressure. When the pressure of this fluid overcomes the elasticity of the spring 33 and moves the piston portion 30 in the direction of the arrow A3, the distal end 30b side of the piston portion 30 comes out of the opening portion 32a of the cylinder container 32. The position of the head 10 and the forcible opening device main body 1B is adjusted so that the glass bulb 11 of the head 10 is positioned in the movement trajectory of the tip 30b of the piston 30, and the piston 30 is moved in the direction indicated by an arrow A3.
When moved in the direction, the glass bulb 11 is broken by the tip 30b of the piston 30. In the third embodiment, when the head 10 is opened and the discharge is started, the starting valve 9 is closed and the supply of the fluid into the cylinder container 32 is stopped. If the supply of fluid is stopped,
Due to the elasticity of the spring 33, the piston 30 returns to its original position. When the piston 30 is returned to the original position in this manner, the piston 30 does not hinder the discharge of the fire-extinguishing fluid from the head 10.

The energy source for the movement of the main body of the forcible opening device in the first to third embodiments is, for example, a cylinder filled with a pressurized fluid instead of the fire extinguishing fluid in the sprinkler pipe 20. And the pressure of the fluid in the cylinder may be used.

A fourth embodiment of the present invention will be described with reference to FIG. In this embodiment, the pressure of the fluid is not used as the energy source of the forcible opening device body, and the piston 3 in the first or second embodiment is pushed up by the pressure of the fluid. not,
This is performed by making a lifting device and raising it by the lifting device. FIG. 6 shows a forcible opening device main body 1A according to the second embodiment in which a lifting device 70 is provided. As shown in the figure, one end 70b of a wire 70a is attached to the upper part of the piston portion 3, and the wire 70a is pulled out, and the other end 70c of the wire 70a is
Is provided at a height that can be manually operated, for example, about 1.5 m from the floor surface. Then, by manually pulling the wire, the piston portion 3 is moved upward, and the stopper of the breaking pin 40 is released.

In this way, the supply 7 and the supply pipe 4
No fluid supply means such as 0 can be required. Therefore, the forcible opening device main body 1A can be directly attached to the head 10, or can be attached to a wall surface, a ceiling surface, or the like via a hanging bracket or the like. A motor is attached to the other end 70c of the wire 70a to electrically connect the wire 70a.
The piston part 3 may be pulled up by winding a.

Although not shown, the lifting device 70 may of course be provided in the main body 1 of the forcible opening device in the first embodiment.

In the first to fourth embodiments, a closed sprinkler head using a glass bulb as a heat-sensitive part has been described as an example. However, a closed sprinkler head using, for example, solder as a heat-sensitive part is described. It may be. When forcibly opening a closed sprinkler head using this solder as a heat-sensitive portion, the solder may be broken in the same manner as the glass bulb 11 is broken.

[0052]

As described above, according to the closed-type sprinkler head forcibly opening device and the fire extinguishing system equipped with the same according to the present invention, the head can be immediately opened when the forcible opening device is activated. it can.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention, and is a system diagram including an enlarged sectional view of a main part.

FIG. 2 is an enlarged sectional view taken along the line II-II of FIG.

FIG. 3 shows a second embodiment of the present invention, and is a system diagram including an enlarged sectional view of a main part.

FIG. 4 is an enlarged sectional view taken along line VI-VI of FIG. 2;

FIG. 5 is a sectional view showing a main body of a forcible opening device according to a third embodiment of the present invention.

FIG. 6 shows a fourth embodiment of the present invention and is a system diagram including an enlarged sectional view of a main part.

[Description of References] 1 Main body of forced opening device 1 2 Cylinder container 3 Piston part 4 Breaking pin 10 Closed sprinkler head 11 Glass valve

Claims (6)

[Claims] 1. A closed-type sprinkler head forcibly opening device for use in a closed-type sprinkler head that is maintained in a closed state by a heat-sensitive portion and forcibly opening the closed-type sprinkler head, wherein the closed-type sprinkler head forcibly opens. The opening device is provided with a heat-sensitive part breaking mechanism that applies an external force to the heat-sensitive part of the closed-type sprinkler head by the pressure of the fluid and moves so as to break the heat-sensitive part. Opening device. 2. The closed sprinkler head forcible opening device according to claim 1, wherein said heat sensitive portion destruction mechanism moves by pressure of a fluid and elasticity of an elastic body. 3. The closed sprinkler head according to claim 1, wherein the heat sensitive portion destruction mechanism moves by a pressure of a fire extinguishing fluid in a sprinkler pipe to which the closed sprinkler head is connected. Force opening device. 4. The apparatus according to claim 1, wherein the heat-sensitive part breaking mechanism is moved by the pressure of a fire-extinguishing fluid in a sprinkler pipe to which the closed-type sprinkler head is connected and the elasticity of an elastic body. Closed sprinkler head forced opening device. 5. A closed-type sprinkler head forcibly opening device for use in a closed-type sprinkler head that is kept closed by a heat-sensitive portion, and forcibly opening the closed-type sprinkler head, wherein the closed-type sprinkler head is forcibly opened. The opening device is provided with a heat-sensitive portion destruction mechanism that applies an external force to the heat-sensitive portion of the closed-type sprinkler head by the elasticity of the elastic body and moves so as to break the heat-sensitive portion. apparatus. 6. A closed sprinkler head that is kept closed by a heat-sensitive part, a sprinkler pipe to which the closed sprinkler head is connected, and a closed sprinkler head forcibly opening the closed sprinkler head. A fire extinguisher equipped with an opening device, wherein the closed sprinkler head forced opening device is the closed sprinkler head forced opening device according to any one of claims 1, 2, 3, 4, and 5. Fire extinguishing equipment characterized by the following.