JPH0913522A - Underfloor ventilating device with underfloor submersion prevention function - Google Patents

Abstract

PURPOSE: To prevent the incursion of rain water under a floor by opening a door with weight of a weight in the case of drying, and absorbing rain water in a sprinkling state with a moisture absorbable sponge on the door surface in the case of rain to increase weight. CONSTITUTION: An interior wall 2 having a vent-hole 2a is provided to the inside of a case 1. A joint section between the interior wall 2 and the upper end of a door 3 is connected with an adjustable hardware 4, the door 3 as the vent-hole 2a is capable of opening and closing. An L-type bracket 7 is provided to one end of the door 3, and a weight hardware 8 is provided to the front end. An absorbable sponge or cloth 5 is mounted to the side of the door 3 with weight of the weight 8, and a felt sheet 6 is mounted to an opposite side. By the constitution, the door 3 is opened with the weight 8 in normal time, and dried air is guided under a floor. Rain water in a sprinkling state infiltrates through the sponge or cloth 5 with strong wind in the case of rain, weight is increased to lower the door 3, and the vent-hole 2a is closed to prevent the incursion of water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor ventilation device with an underfloor infiltration prevention function.

[0002]

2. Description of the Related Art Conventional underfloor ventilation is either ventilation with only natural ventilation with a simple opening or forced ventilation with a blower. Underfloors during rainstorms and floods. There were no preventive measures against flooding.

[0003]

In the underfloor of a house without a ventilating device, moisture contained in the soil under the floor is gradually evaporated, and the moisture accumulated under the floor is absorbed in the space of the wall on the side exposed to direct sunlight. The air is overheated and becomes an updraft and stays in the attic,
And, on the other side, for example, it descends the space of the wall where direct sunlight does not reach and stays under the floor, that is, the accumulated moisture causes a permanent circulation action and causes damage to the house preservation. is there.

Therefore, in order to eliminate the above-mentioned drawbacks, the attic is equipped with a simple waterproof device having a gap, but in the case of heavy fog or storm A strong wind accompanied by thick fog and rainwater penetrates the attic through the openings for introducing the air gaps and ventilation, corrodes the timber of the structure of the house, and rusts the iron material, which significantly shortens the life of the house. There is rainwater that has infiltrated the sky and drops into the room as water droplets, causing tatami mats to rot, but these problems are unavoidable and are simply being removed as rain leaks.

Even in the case of an underfloor problem, since it is simply provided with an opening for ventilation, it causes rainwater in rainstorms and inundation under the floor without limit in floods. Although it is only taking measures to remove moisture using mechanical devices such as, it is in a state of no value during rainstorms and floods, and wind pressure with rainwater during rainstorms and water pressure during floods There is a drawback in that the moisture that has entered against the wind pressure of the blower causes a failure in the electric system and causes a fire.

[0006] If there is no device for removing water that has penetrated under the floor in the above-mentioned state, there is a drawback that it permanently accumulates, or moisture that permeates the soil under the floor permanently evaporates and damages the house. .

[0007] Therefore, in the recent technology, a huge amount of money is invested to perform various works in the underfloor to prevent the infiltration of water into the soil under the floor and to evaporate the water from the soil. Although there is a measure to prevent it, if there is no device to discharge the moisture that has entered the underfloor, the moisture that has penetrated under the floor will be permanently accumulated, and the permanently evaporated moisture will be the wood of the house structure. In addition, it causes corrosion and rust of iron material and significantly shortens the life of the house.

A number of openings are provided under the floor to remove moisture for the purpose of preserving the house, but during storms or floods,
It also has the opposite effect and causes the adverse effects as described above.

If the total area of this opening is, for example, 1 square meter, and if the amount of rainfall during a storm is 100 mm / hour, 100 liters of water per hour will enter the house through this opening. In addition, the amount of inundation during a long storm is probably several tons.In addition, the inundation amount during a flood is unlimited, and the water level during a flood is the underfloor water level. If it is 100 square meters,
If there is no way to drain such a large amount of water, which is likely to inundate several tens of tons, it will only dry up by evaporation and probably take a long time, but such a large amount of moisture over a long period of time is likely to occur. If it is kept indoors, house damage is an inevitable phenomenon.

Therefore, in order to solve the above-mentioned problems, there is nothing but to prevent thorough underfloor intrusion of water.
Therefore, the present invention is provided to solve the above problems.

[0011]

If the present invention is installed in an opening provided under the floor of a house, ventilation wind will enter the underfloor through the open door of the present invention on the windward side in a normal state. A ventilation device for ventilating the inside of the floor, which is configured to discharge moisture from the door of the present invention installed on the leeward side.

[0012] If the rainwater invades during a storm or the underfloor flooding occurs during a flood, the hygroscopic sponge of the present invention, or
This is an underfloor inundation prevention device configured to shut down underfloor inundation by closing the ventilation holes by closing the ventilation holes by lowering the door by increasing the weight of water permeating the fabric.

[0013]

Embodiments will be described with reference to the drawings.
When the present invention A is installed in the opening B provided under the floor of the house, the dry outside air penetrates under the floor from the door 3 which is normally opened by the weight of the hanging drip 8 under normal conditions, and the air containing moisture is leeward. It is discharged to the outside from the side door 3 and the underfloor is ventilated.

The strong wind at the time of rain or the rainwater that is agitated by the strong wind at the time of rainstorm permeates the sponge or the cloth 5 to increase its weight and the door 3 descends to lower the ventilation holes 2a.
To prevent the ingress of moist wind.

However, when the invading water is not in the splash state, the water does not penetrate into the sponge or the cloth 5, so that the door 3 cannot be closed, for example, when the embankment breaks or at high tide. Since the overflowed seawater or the like is in a state of natural water increase, the sponge or the cloth 5 is at a high place, so that water cannot penetrate into the sponge or the cloth 5. Therefore, the ventilation hole 2a is closed by the door 3. Is also impossible, and there is a problem of flooding the underfloor without any resistance from the vent hole that has been released.

Therefore, as a condition for closing the door 3, up to the duct 10 installed at the upper end of the baffle plate 9 provided to prevent the infiltration of water until the water level is maintained to some extent in order to allow water to permeate into the cloth 5 in advance. When the water level rises, the water introduced through the duct 10 permeates the sponge or cloth 5 provided on the side surface of the door 3 to increase the weight, and the heavy metal fitting provided at the tip of the L-shaped bracket 7 8
In order to prevent underfloor inundation, the door 3 is pressed down and the ventilation hole 2a is closed by overwhelming the weight.

The middle of the closed door 3 and the baffle acts as a water tank 13 for accumulating water, and the door 3 is constantly and evenly pressed with a constant water pressure, so that the wind pressure changes in a storm. The drainage door 11 has a function of preventing water leakage due to the vibration opening and closing of the door 3, and when the storm and the flood are eventually released, the drainage hole 11 that has blocked the drainage hole 12 by the pressure from the outside, that is, the wind pressure of the storm and the water pressure of the flood. However, the water in the water tank 13 is pressed and opened, the water in the water tank is discharged and discharged through the gaps of the dust-proof net 14, and the water penetrates and the wet sponge or cloth 5 dries. It is an underfloor ventilation device with an underfloor infiltration prevention function that is configured to ventilate the inside of the floor by opening the door 3 due to the weight of the hanging 8 when it becomes lighter.

The felt sheet 6 plays a role of packing and acts to prevent the water leakage by making the closed portion more tight.

The dustproof net 14 provided at one end of the case 1 prevents dust from entering and impedes the functional parts of the present invention.

The baffle plate 9 and the dustproof net 14 are removed together with the screw 15 which is detachably fixed to the case 1, and the sponge or the cloth when it is aged is replaced.

Since the present invention is constructed as described above, it has the following effects.

By installing the present invention in an opening under the floor, it is possible to ventilate the inside of the floor, and to inject damp air, for example, rainwater in case of heavy fog or storm and underfloor in case of flood. It is an underfloor ventilation system with an underfloor infiltration prevention function that is configured to shut off inundation and complete house preservation.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an underfloor ventilation device with an underfloor infiltration prevention function.

FIG. 2 is a layout diagram of the present invention.
4

[Explanation of symbols]

 A Underfloor opening of a house 1 Case 2 Inner wall 2a Ventilation hole 3 Door 4 Flexible hardware 5 Sponge or cloth 6 Felt sheet 7 L-shaped bracket 8 Heavy hanging 9 Baffle plate 10 Duct 11 Drainage door 12 Drainage hole 13 Water tank 14 Dustproof mesh 15 Screw

Claims (2)

[Claims] 1. A ventilation hole (2a) inside a case (1).
Equipped with an inner wall (2), a free hardware (4) is provided at the upper end of the door (3) to open and close the ventilation hole (2a), and an L-shaped bracket (7) is provided at one end of the door (3). The underfloor ventilator is provided with a heavy hanging metal (8) at its tip, and the door (3) is always opened by this weight. 2. A hygroscopic sponge or cloth (4) is provided on the side surface of the door (3) according to claim 1, a felt sheet (6) is provided on the opposite side surface, and one end of the door (3) is provided.
Inside the case (1), a duct (10) is provided near the upper end of a baffle plate (9) detachably provided with a screw (15),
A drainage door (11) that operates freely is provided at the lower end to open and close the drainage hole (12) to drain the water accumulated in the water tank (13). The dustproof net (14) is provided at one end of the case (1).
Is an underfloor infiltration prevention device, which is detachably fixed with screws (15).