JP3831077B2 - Watertight fireproof combined ventilation system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilation device for a wall surface of a building, and in particular, watertight fire prevention that can prevent rainwater from intruding into an air passage provided in the ventilation device or hot air and flame from entering during a fire. The present invention relates to a combined ventilation device.
[0002]
[Prior art]
As a ventilator that can prevent rainwater from entering the room during strong winds such as typhoons, for example, Japanese Patent Publication No. 3-29516 (first known technique) or Japanese Patent Laid-Open No. Sho 63-251548 (second known technique). Technology), Japanese Patent Application Laid-Open No. 5-295959 (third known technology), Japanese Patent Publication No. 49-35781 (fourth known technology), Japanese Utility Model Publication No. 63-167589 (fifth known technology), and the like. Are known.
[0003]
The structure of the ventilators of the above-mentioned first to fifth known techniques is extremely complicated as a whole, and rainwater tends to enter during typhoons, so only the place where eaves, eaves, etc. are provided. It is difficult to use, and there is a problem that it is difficult to use it in places where there are no eaves or bags.
[0004]
In order to improve the above-mentioned conventional problems, the present inventor has substantially closed the center of the inside of a vertical cylinder body in which both upper and lower ends are closed, a vent hole is provided at the lower part of the outer wall, and a vent hole is provided at the upper part of the inner wall. A vertical cylinder type ventilator has been developed in which an open / close flap that can be closed and separated in the vertical direction is pivotally attached to the upper part, and a patent application has already been filed (Japanese Patent Application No. 8-200078). .
[0005]
Even when the vertical cylinder type ventilator developed by the inventor described above is mounted on a wall without eaves, bags, etc., when the wind force increases, the open / close flap inside the cylinder rotates to automatically open the air passage. It has a feature that it can be closed and prevent rainwater from entering the indoor side through the internal air passage during a typhoon or the like.
[0006]
[Problems to be solved by the invention]
However, in the ventilator exemplified in the above-mentioned known art including the vertical cylinder type ventilator, it is merely intended to prevent rainwater from entering the indoor side through the air passage. Since it is a ventilator, it was not possible to prevent hot air or flame from entering the indoor side through the air passage of the ventilator during a fire. Therefore, as explained in the technology of the patent application, a fire damper is additionally provided on the back side of the ventilation device, and in the event of a fire, a fire may enter the room by using the fire damper. Or, it was prevented from being ejected from the indoor side to the outside.
[0007]
Therefore, in the conventional technology, a ventilation device for preventing intrusion of wind and rain during a typhoon and a fire damper for preventing hot air and flame intrusion at the time of a fire are created separately and used together. Had to do. Therefore, many materials are required, processing and assembly are complicated, and there is a problem that costs increase. In addition, there is a problem that a space for installing a ventilation device and a fire damper on the wall of the building must be secured, and the design of the building is limited.
[0008]
The watertight fireproof and ventilating apparatus according to the present invention is a completely new technology developed in view of the above-mentioned conventional problems, and in particular, an air passage that connects a ventilation inlet and a ventilation outlet provided at corresponding positions at both ends. By detachably attaching an opening / closing flap that can be opened and closed inside, and by attaching a closing device near the opening / closing flap that can forcibly close the air passage by rotating the opening / closing flap by high heat during a fire, It is an object of the present invention to provide a ventilator technique capable of preventing intrusion of wind and rain and invasion of hot air and flame.
[0009]
[Means for Solving the Problems]
Watertight fire ventilation apparatus according to the present invention is a fundamentally improved techniques conventional problems described above, inventions aspect of that is of cylindrical type used is mounted on the wall of a building ventilation In the apparatus, a ventilation inlet and a ventilation outlet are formed at positions corresponding to both ends, and the air passage of the cylinder body in which an air passage that connects the ventilation inlet and the ventilation outlet is provided. within, the closing flap by the force of wind and rain can open and close the air passage mounted rotatably, and a fuse member in the coil spring or the coil spring or leaf spring the cylindrical body against the urging force of the leaf spring are temporarily stuck, said by high heat of a fire the fuse member is blown the coil spring or leaf spring the closing off forcibly closed may closing device the air passageway by rotating the closing flap by the biasing force of the Tsu is watertight fire ventilation apparatus characterized by being configured mounted in the vicinity of the flop.
[0010]
Is In the prior Symbol onset bright, since the closing flap into the air passage communicating the vent inlet and vent outlet of the cylindrical body mutually mounted rotatably, the weather in the air passage starts to penetrate, weather The opening / closing flap can be rotated by the force of the air to close the air passage to prevent subsequent invasion of wind and rain. Further, when hot air or flame begins to enter the air passage during a fire, the air passage can be closed by rotating the open / close flap by operating the closing device by the heat.
[0012]
Further, Open Closed flap forcibly closed may closing device coil spring, since it is configured with the fuse member may temporarily attached the elastic member and the elastic member into a cylindrical body such as a leaf spring, the fuse member in heat fusing As a result, the moving member is detached from the fixed frame by the action of the elastic body, and the air passage can be forcibly closed by rotating the opening / closing flap.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a longitudinal cross-sectional explanatory view of a watertight / fireproof and ventilating apparatus according to a first embodiment of the present invention, and FIG. FIG. 3 is a cross-sectional explanatory view of a main part of FIG. 1.
[0014]
4 (A), 4 (B), and 4 (C) are longitudinal sectional views showing a state in which the open / close flap of the ventilator of FIG. 1 is actuated by rain or heat, and FIG. 5 shows the ventilator of the second embodiment. FIG. 6A, FIG. 6B, and FIG. 6C are longitudinal sectional views showing the ventilating device of the third embodiment.
[0015]
1 to 4, the ventilation device according to the first embodiment will be described. Reference numeral 1 denotes a cylinder, which has four corners formed by an outer wall 2, left and right side walls 3, 4, an inner wall 5, an upper plate 6, and a lower plate 7. It is formed in a cylindrical shape. With aeration inlet 8 at a lower portion of the outer wall 2 of the tubular body 1 is provided, the vent exit 9 on the top of the inner wall 5 of the tubular body 1 corresponding to this position is provided, and in the interior of the cylindrical body 1 An air passage 10 is provided to communicate the ventilation inlet 8 and the ventilation outlet 9 with each other.
[0016]
Reference numeral 11 denotes a wing plate-like opening / closing flap, and a substantially central portion thereof is pivotally attached to the shaft 12. The opening / closing flap 11 closes the air passage 10 of the cylinder 1 as required, as shown in FIGS. 4B and 4C, or opens the air passage 10 as shown in FIG. 4A. It is configured as possible.
[0017]
Reference numeral 13 denotes a closing device attached in the vicinity of a predetermined portion of the opening / closing flap 11, and when this device is operated, the opening / closing flap 11 is rotated as shown in FIG. The passage 10 can be forcibly closed.
[0018]
1 and 2, the closing device 13 includes a coil spring 15 wound around a shaft 14, an L-shaped moving member 16 connected to one end 15a of the coil spring 15, a cylindrical body, and the like. A U-shaped fixed frame 18 fixed to a single inner wall 5 with screws 17 and a fuse member 19 formed of two fuses 19a and 19b soldered to each other.
[0019]
One fuse 19 a of the fuse member 19 is fixed to the moving member 16 by a screw 20, and the other fuse 19 b is fixed to the fixed frame 18 by a screw 21. Further, the other end 15 b of the coil spring 15 is fixed to the inner surface of the fixed frame 18.
[0020]
Since the closing device 13 having the above-described structure has the above-described structure, when a fire or the like occurs and hot air or a flame enters the air passage 10 and the temperature rises, Since the solder that welds the fuses 19a and 19b to each other melts, the fuses 19a and 19b peel off from each other, and the fuse member 19 is cut.
[0021]
At this time, the moving member 16, which has been regulated by the fuse member 19 until now, is moved by the action of the coil spring 15 to forcibly move one end of the opening / closing flap 11 as shown in FIG. Then, the air passage 10 of the cylinder 1 is closed while the opening / closing flap 11 is rotated.
[0022]
In the figure, reference numeral 22 denotes a wall frame assembly on the building frame side, and an outer wall panel 23 is attached to the outdoor side of the wall frame assembly 22. Therefore, the cylinder 1 of the ventilation device is fitted into a part of the wall surface of the building including the wall shaft set 22 and the outer wall panel 23, and the like. Indoor ventilation can be performed through an air passage 10 that communicates these.
[0023]
The operation status of the watertight / fireproof ventilation apparatus according to the present invention will be described as shown in FIGS. 4 (A), (B), and (C). That is, in the normal time, as shown in FIG. 3A, the opening / closing flap 11 is erected substantially vertically, the air passage 10 is opened, and the air taken in from the ventilation inlet 8 below the cylinder 1 is the air passage. 10 passes through the ventilation outlet 9 and flows into the room of the building. In this state, indoor air is also discharged to the outside of the room (not shown).
[0024]
Next, when strong wind and rain during a typhoon or the like begins to enter the air passage 10 from the air inlet 8, the opening / closing flap 11 is rotated by the wind and rain pressure to close the air passage 10 as shown in FIG. As a result, wind and rain can be prevented from flowing into the room through the air passage 10 and the ventilation outlet 9.
[0025]
Further, when a fire occurs and hot air or flame begins to enter the air passage 10 from the ventilation inlet 8, the temperature in the air passage 10 rises as shown in FIG. When the temperature (for example, 120 ° C.) is reached, the solder of the fuse member 19 of the closing device 13 is melted as described above, and the two fuses 19a and 19b temporarily attached with the solder are separated, so that the spring 15 The moving member 16 can be moved by this action, and at the same time, the opening / closing flap 11 can be rotated by the moving member 16 to close the air passage 10 with the opening / closing flap 11.
[0026]
Therefore, it is possible to prevent hot air and flame from entering the room through the air passage 10 and the ventilation outlet 9. When a fire occurs in the room, hot air and flame begin to enter the air passage 10 from the ventilation outlet 9. In this case, the closing device 13 is activated to close the air passage 10 with the opening / closing flap 11. It is possible to prevent hot air and flame from being blown out from the indoor side (not shown).
[0027]
In the first embodiment, as shown in FIGS. 1 to 4, the air inlet 8 is provided at the lower portion of the outer wall 2 of the cylindrical body 1. However, as in the second embodiment shown in FIG. 5, When the cylindrical body 1 is deeply embedded in the wall of the building and the outer wall 2 of the cylindrical body 1 is covered with the outer wall panel 23 of the building, a duct 24 is provided around the ventilation inlet 8, It is also possible to configure the duct 24 to be exposed outside the house.
[0028]
In the first embodiment and the second embodiment, the closing device 13 is configured by using the coil spring 15, but the third embodiment shown in FIGS. 6A, 6B, and 6C is used. In addition, the closing device 25 can be configured with a simple structure by the leaf spring 26 and the fuse member 19.
[0029]
That is, in the case of the third embodiment, one end of a leaf spring 26 having an L-shaped bent portion 26a at the tip is attached to the shaft 12 on which the opening / closing flap 11 is pivotally attached. A fuse member 19 is spanned between 26a and the fixed frame 18. One fuse 19a of the fuse member 19 is fixed to the L-shaped bent portion 26a by a screw 21, and the other fuse 19b is fixed to a screw 20 by a screw 20. It is being fixed to the fixed frame 18 by. The opening / closing flap 11 is pivotally attached to the shaft 12 via bearing members 27 at both ends thereof.
[0030]
Also in the case of the third embodiment, when the temperature of the air passage 10 reaches a predetermined temperature as in the first embodiment, the solder of the fuse member 19 is melted, whereby the fuses 19a and 19b are separated from each other, and the plate The L-shaped bent portion 26a at the tip of the leaf spring 26 is brought into contact with the opening / closing flap 11 by the action of the spring 26 and forcibly rotates the air passage 10 with the opening / closing flap 11, thereby causing a fire. The hot air or flame can be prevented from passing through the air passage 10.
[0031]
【The invention's effect】
In the present invention, as described above, the opening / closing flap is pivotally attached to the air passage of the cylindrical body, and the opening / closing flap can be opened / closed by the opening / closing flap. Since the closure device is provided in the vicinity of the door so that the opening / closing flap can be forcibly rotated in the event of a fire, if the temperature of the air passage rises during a fire, the opening / closing flap will be forcibly rotated. By closing the air passage, hot air or flame can be prevented from passing through the air passage.
[0032]
When the above-described closing device is constituted by an elastic body such as a coil spring or a leaf spring and a fuse member capable of temporarily attaching the elastic body to the cylindrical body, the fuse member is separated when the temperature reaches a predetermined temperature. The closing flap in the vicinity can be forcibly rotated by the action of the elastic body.
[0033]
The watertight fireproof and ventilator according to the present invention prevents wind and rain during the typhoon as described above from entering and passing through the air passage of the cylindrical body, and hot air or flame during a fire enters the air passage. Since it can prevent passing, it can have both a ventilation function and a fire prevention function. Therefore, by using this device, it is not necessary to install a fire damper separately from the ventilator as in the prior art, it is extremely economical, and the ventilation and fire prevention space on the wall of the building can be minimized. Has a great effect.
[Brief description of the drawings]
FIG. 1 is a longitudinal cross-sectional explanatory view of a watertight / fireproof and ventilating apparatus according to a first embodiment of the present invention.
2 is a partially cutaway perspective explanatory view showing the configuration of the ventilation device of FIG. 1; FIG.
FIG. 3 is a cross sectional explanatory view of a main part of FIG. 1;
4 (A), (B), and (C) are longitudinal sectional views showing states in which the open / close flaps of the ventilator of FIG. 1 are actuated by wind and rain or heat, respectively.
FIG. 5 is a longitudinal sectional view showing a ventilation device of a second embodiment.
6 (A), (B), and (C) are longitudinal sectional views showing a ventilating device of a third embodiment, respectively.
[Explanation of symbols]
1 ... Cylinder 2 ... Outer wall
3, 4 ... side wall 5 ... inner wall 6 ... upper plate 7 ... lower plate 8 ... vent inlet 9 ... vent outlet
10 ... Air passage
11 ... Opening and closing flap
12 ... axis
13 ... Closure device
14 ... axis
15 ... Coil spring
16 ... Moving member
17, 20, 21 ... screw
18 ... Fixed frame
19… Fuse member
19a, 19b ... fuse
22 ... Wall frame assembly
23… Outer wall panel
24 ... Duct
25 ... Closure device
26 ... leaf spring
27… Bearing member

Claims (1)

In a cylindrical ventilation device mounted on a wall of a building and used, a ventilation inlet and a ventilation outlet are formed at corresponding positions on both ends, and the ventilation inlet and the ventilation outlet are communicated with each other. in air passage of the air passage is provided inside the cylindrical body, rotatably attached to the closing flap which can open and close the air passage by the force of wind and rain, and the fuse member to the biasing force of the coil spring or leaf spring the coil spring or a leaf spring with anti is temporarily attached to the cylindrical body, said air said by high heat of a fire the fuse member is blown by rotating the closing flap by the urging force of the coil spring or leaf spring A watertight / fireproof and ventilating apparatus characterized in that a closing device capable of forcibly closing a passage is attached in the vicinity of the opening / closing flap.

Images