JPH1144012A - Ventilation device used combinedly for water-tight fire proofing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation device providing an opening and closing flap capable of being opened and closed in an air passage linking both air inlet and outlet provided to positions opposed to both ends in a movable manner, providing a closing device capable of forcedly closing the air passage near to the opening and closing flap by turning the opening and closing flap with great heat in the case of a fire and capable of preventing the incursion of wind and rain and the invasion of hot air and flames. SOLUTION: An air inlet 8 is provided to the lower part of an external wall 2 in a cylindrical body 1, an air outlet 9 is provided to the upper part of an internal wall 5, and an opening and closing flap 11 is pivoted on the inside of an air passage 10 linking the air inlet 8 and air outlet 9 in a turnable manner. A closing device 13 constituted of a coil spring 15, a moving member 16, a fixed frame 18 and a fuse member 19 soldering two fuses 19a and 19b to each other is provided in the vicinity of the opening and closing flap 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilating device for a wall of a building, and more particularly to a method in which rainwater during a typhoon or hot air or flame during a fire enters an air passage provided in the ventilating device. The present invention relates to a watertight fire / ventilation / ventilation device that can prevent both.

[0002]

2. Description of the Related Art As a ventilator capable of preventing rainwater from entering a room when a strong wind such as a typhoon occurs, for example, Japanese Patent Publication No.
No. 29516 (first known technology)
JP-A-3-251548 (second known technique), JP-A-5-295959 (third known technique), Japanese Patent Publication No. 49-3
No. 5781 (fourth known technology) and Japanese Utility Model Application Laid-Open No. 63-16
A technique disclosed in, for example, Japanese Patent No. 7589 (fifth known technique) is known.

[0003] The structure of the ventilating device of the first to fifth known arts described above is extremely complicated as a whole, and is provided with eaves, eaves, etc., because rainwater easily penetrates during a typhoon or the like. There is a problem that it is difficult to use only a place, and it is difficult to mount and use it in a place where there is no eaves, eaves or the like.

In order to solve the above-mentioned conventional problems, the inventor of the present invention has disclosed an internal structure of a vertical cylindrical body having upper and lower ends closed, a vent provided at a lower portion of an outer wall, and a vent provided at an upper portion of an inner wall. A vertical cylinder type ventilator has been developed in which the opening / closing flap capable of vertically closing and separating the vertical cylinder body is rotatably mounted substantially at the center, and a patent application has already been filed (Japanese Patent Application No. Hei 8- 200078).

[0005] The vertical cylinder type ventilator developed by the inventor described above can be used even when it is mounted on a wall without eaves, eaves and the like.
When the wind power increases, the opening / closing flap in the cylinder rotates and automatically closes the air passage, preventing rainwater from entering the room through the internal air passage during a typhoon etc. I have.

[0006]

However, in the ventilating apparatus exemplified in the above-mentioned prior art including the vertical cylinder type ventilating apparatus, rainwater simply enters the room through an air passage. Since it is a ventilator intended to prevent this, it was not possible to prevent hot air or flame from entering the room through the air passage of the ventilator in the event of a fire. Therefore, as described in the technology of the above-mentioned patent application, a fire damper is separately provided on the back side of the ventilation device, and in the case of a fire, the fire enters the room by using the fire damper. Or, it was prevented from spouting from the indoor side to the outdoor side.

[0007] Therefore, in the prior art, a ventilation device for preventing the invasion of wind and rain during a typhoon and the like and a fire damper for preventing the intrusion of hot air and flame during a fire are separately prepared.
These had to be used side by side. Therefore, many materials are required, processing and assembling are complicated, and there is a problem that cost is increased. In addition, a space for providing a ventilation device and a fire damper must be provided on the wall of the building, and there is a problem that the design of the building is limited.

The watertight fire / ventilation apparatus according to the present invention is a completely new technique developed in view of the above-mentioned conventional problems, and particularly connects a ventilation inlet and a ventilation outlet provided at corresponding positions at both ends. An opening / closing flap capable of opening and closing the air passage is movably mounted in the air passage to be opened, and a closing device capable of forcibly closing the air passage by rotating the opening / closing flap by high heat at the time of fire is attached near the opening / closing flap. Accordingly, it is an object of the present invention to provide a technique of a ventilation device capable of preventing invasion of wind and rain and invasion of hot wind and flame.

[0009]

SUMMARY OF THE INVENTION A watertight fire / ventilation / ventilation apparatus according to the present invention is a technique which fundamentally improves on the above-mentioned conventional problems, and the gist of the first invention is that it is mounted on a wall of a building. In a cylindrical ventilator that is used after being formed, a ventilation inlet and a ventilation outlet are formed at positions corresponding to both ends, and an air passage communicating between the ventilation inlet and the ventilation outlet is provided inside. An opening / closing flap capable of opening and closing the air passage is rotatably mounted in the air passage of the provided cylindrical body, and the air passage can be forcibly closed by rotating the opening / closing flap by high heat at the time of fire. A watertight fireproof / ventilating apparatus characterized in that a closing device is mounted near the opening / closing flap.

In the first aspect of the present invention, since the opening / closing flap is rotatably mounted in the air passage which connects the ventilation inlet and the ventilation outlet of the cylindrical body to each other, wind and rain start to enter the air passage. Then, the opening / closing flap is rotated by the force of the wind and rain to close the air passage, thereby preventing the intrusion of the wind and rain thereafter. Also, when hot air or flame starts to enter the air passage at the time of fire, the closing device is operated by the heat and the opening / closing flap is rotated to close the air passage.

The second embodiment of the watertight fire / ventilation / ventilation apparatus according to the present invention
The gist of the invention is that the closing device is constituted by an elastic body such as a coil spring and a leaf spring and a fuse member capable of temporarily attaching the elastic body to the cylindrical body. It is a ventilation device.

According to the second invention, the closing device for forcibly closing the opening / closing flap according to the first invention is temporarily attached to an elastic body such as a coil spring or a leaf spring and the elastic body to a cylindrical body. Since the fuse member is obtained, the movable member is separated from the fixed frame by the action of the elastic body when the fuse member is melted by heat, and the opening / closing flap is rotated to forcibly close the air passage. I can do it.

[0013]

FIG. 1 is a longitudinal sectional view of a watertight fireproof / ventilating apparatus according to a first embodiment of the present invention. FIG. 1 is a longitudinal sectional view of a watertight fireproof / ventilating apparatus according to a first embodiment of the present invention. FIG. 2 is a partially cutaway perspective explanatory view showing the configuration of the ventilator of FIG. 1, and FIG. 3 is a transverse sectional explanatory view of a main part of FIG. 1.

FIGS. 4A, 4B and 4C are longitudinal sectional views respectively showing a state in which the opening / closing flap of the ventilator of FIG. 1 is operated by wind, rain, or heat, and FIG. 5 is a ventilation of the second embodiment. FIGS. 6A, 6B and 6C are longitudinal sectional views showing a ventilation device according to a third embodiment.

Referring to FIGS. 1 to 4, the ventilation device of the first embodiment will be described.
Left and right side walls 3 and 4, inner wall 5, upper plate 6 and lower plate 7
It is formed in a rectangular tube shape. A ventilation port 8 is provided at a lower portion of the outer wall 2 of the cylinder 1, and a ventilation port 9 is provided at an upper portion of the inner wall 5 of the cylinder 1 corresponding to this position. An air passage 10 is provided for communicating the ventilation inlet 8 and the ventilation outlet 9 with each other.

Numeral 11 denotes a wing-plate-shaped opening / closing flap, whose substantially central portion is rotatably mounted on a shaft 12. As shown in FIGS. 4B and 4C, the opening / closing flap 11 closes the air passage 10 of the cylindrical body 1 as necessary.
Alternatively, as shown in FIG. 1A, the air passage 10 is configured to be openable.

Reference numeral 13 denotes a closing device mounted near a predetermined portion of the opening / closing flap 11, and when this is operated, the opening / closing flap 11 is rotated, as shown in FIG. The first air passage 10 is forcibly closed.

The closing device 13 includes a coil spring 15 wound around a shaft 14 and one end 1 of the coil spring 15 as is particularly apparent from FIGS.
An L-shaped moving member 16 connected to 5a, a U-shaped fixing frame 18 fixed to the inner wall 5 of the tubular body 1 with screws 17 and two fuses 19a and 19b soldered to each other. And a fuse member 19.

One fuse 19a of the fuse member 19 is fixed to the moving member 16 by a screw 20, and the other fuse 19b 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.

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 flame enters the air passage 10 and the temperature rises, the closing device 13 has a fuse. Since the solder in which the fuses 19a and 19b of the member 19 are welded to each other melts, the fuse 19
The fuse members 19 are cut off from each other.

At this time, the moving member 16 which has been regulated by the fuse member 19 moves by the action of the coil spring 15 to forcibly push one end of the opening / closing flap 11 as shown in FIG. The air passage 10 of the cylinder 1 is closed while moving the opening / closing flap 11.

In the figure, reference numeral 22 denotes a wall frame on the building frame side, and an outer wall panel 23 is attached to the outside of the wall frame 22 on the outdoor side. Therefore, the cylindrical body 1 of the ventilation device is fitted into a part of the wall surface of the building including the wall frame 22 and the outer wall panel 23, and the ventilation inlet 8 and the ventilation outlet 9 of the cylindrical body 1 It is configured such that indoor ventilation can be performed through an air passage 10 communicating these.

The operation of the watertight fire / ventilation system according to the present invention will be described with reference to FIGS. 4 (A), 4 (B) and 4 (C).
As shown in FIG. That is, in a normal state, as shown in FIG. 2A, 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 supplied to the air passage. After passing through 10, the air flows into the room of the building from the ventilation outlet 9. In this state, the air inside the room is also discharged outside the room (not shown).

Next, when strong wind and rain starts to enter the air passage 10 from the ventilation inlet 8 during a typhoon or the like, the opening and closing flap 11 is rotated by the pressure of the wind and rain, as shown in FIG.
The air passage 10 is closed, so that the wind and rain can
It can be prevented from flowing into the room through the air outlet 9 and the ventilation outlet 9.

Further, when a fire occurs and hot air or flame starts to enter the air passage 10 through the ventilation inlet 8, FIG.
As shown in (C), since the temperature in the air passage 10 rises, when this temperature reaches a predetermined set temperature (for example, 120 ° C.), the solder of the fuse member 19 of the closing device 13 is changed as described above. And the two fuses 19a and 19b temporarily attached with solder are separated from each other.
The moving member 16 is moved by the action of
The air passage 10 can be closed by the opening / closing flap 11 by rotating the opening / closing flap 11.

Accordingly, it is possible to prevent the hot air and the flame from entering the room through the air passage 10 and the vent 9.
Further, when a fire occurs in the room, hot air and flame start to enter the air passage 10 from the ventilation outlet 9. In this case as well, the closing device 13 operates to close the air passage 10 with the opening / closing flap 11. In addition, it is possible to prevent hot air and flame from escaping from the indoor side to the outside (not shown).

In the first embodiment, FIGS.
As shown in FIG. 5, a ventilation inlet 8 is provided at the lower part of the outer wall 2 of the cylinder 1, but as in the second embodiment shown in FIG.
Is buried deep 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.
Can be configured to be exposed outside the house.

In the first embodiment and the second embodiment, the closing device 13 is constituted by using the coil spring 15, but the third embodiment shown in FIGS. 6A, 6B and 6C. As in the example, the closing device 25 can be configured to have a simple structure by the leaf spring 26 and the fuse member 19.

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 pivoted.
A fuse member 1 is provided between the mold bent portion 26a and the fixed frame 18.
9, one fuse 19 a of the fuse member 19 is fixed to the L-shaped bent portion 26 a by a screw 21, and the other fuse 19 b is fixed to the fixing frame 18 by a screw 20. The opening / closing flap 11 is pivotally attached to the shaft 12 at both ends via bearing members 27.

In the case of the third embodiment, as in the first embodiment, when the temperature of the air passage 10 reaches a predetermined temperature, the solder of the fuse member 19 is melted.
a, 19b are separated from each other, and the L-shaped bent portion 26a at the tip end of the leaf spring 26 is brought into contact with the opening / closing flap 11 by the action of the leaf spring 26, and forcibly rotates this.
1 closes the air passage 10, thereby preventing hot air or flame of a fire from passing through the air passage 10.

[0031]

According to the present invention, the opening / closing flap is pivotally attached to the air passage of the cylindrical body as described above,
The air passage can be opened and closed by the opening and closing flap, and a closing device is provided near the opening and closing flap so that the opening and closing flap can be forcibly rotated in the event of a fire. When the temperature of the air passage rises in the event of a fire, the opening / closing flap is forcibly rotated to close the air passage, thereby preventing hot air or flame from passing through the air passage.

In the case where the above-mentioned 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, when the temperature reaches a predetermined temperature, the fuse member is opened. Is separated, and the closing flap in the vicinity can be forcibly rotated by the action of the elastic body.

The watertight fire / ventilation system according to the present invention prevents the wind and rain during a typhoon from entering and passing through the air passage of the cylindrical body as described above, and also allows hot air or flame from the fire to enter the air passage. Because it can be prevented from invading and passing,
It can have both ventilation function and fire protection function. Therefore, by using this device, it is not necessary to add a fire damper separately from the ventilation device unlike the conventional one, and it is extremely economical, and the ventilation fire protection space on the wall of the building can be minimized. It has a great effect.

[Brief description of the drawings]

FIG. 1 is an explanatory longitudinal sectional view of a watertight fireproof / ventilating apparatus according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing the configuration of the ventilator of FIG. 1;

FIG. 3 is an explanatory cross-sectional view of a main part of FIG. 1;

4 (A), 4 (B), and 4 (C) are longitudinal sectional views showing states in which the opening / closing flap of the ventilation device of FIG. 1 is operated by wind, rain, or heat.

FIG. 5 is a longitudinal sectional view showing a ventilation device according to a second embodiment.

FIGS. 6A, 6B and 6C are longitudinal sectional views each showing a ventilation device according to a third embodiment.

[Explanation of symbols]

Reference Signs List 1 cylindrical body 2 outer wall 3,4 side wall 5 inner wall 6 upper plate 7 lower plate 8 ventilation inlet 9 ventilation outlet 10 air passage 11 opening / closing flap 12 shaft 13 closing device 14 shaft 15 coil spring 16 moving member 17,20,21 screw 18 fixed Frame 19 Fuse member 19a, 19b Fuse 22 Wall frame 23 Outer wall panel 24 Duct 25 Closing device 26 Leaf spring 27 Bearing member

Continuation of the front page (72) Inventor Tsukasa Mura 2-20-5 Shimotani, Taito-ku, Tokyo Inside Nippon Chemical Industry Co., Ltd.

Claims (2)

[Claims] In a cylindrical ventilation device mounted on a wall of a building and used, a ventilation inlet and a ventilation outlet are formed at positions corresponding to both ends, and the ventilation inlet and the ventilation are formed. An opening / closing flap capable of opening / closing the air passage is rotatably mounted in the cylindrical air passage provided with an air passage communicating with the outlet, and the opening / closing flap is rotated by high heat at the time of fire. A watertight fire / ventilation / ventilator, wherein a closing device capable of forcibly closing an air passage is mounted near the opening / closing flap. 2. The watertight fire protection system according to claim 1, wherein said closing device comprises an elastic body such as a coil spring or a leaf spring and a fuse member capable of temporarily attaching said elastic body to said cylindrical body. Ventilation equipment.