JPS6225613Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is intended to provide an underfloor ventilation system for buildings having a novel configuration.

Regarding this kind of thing that is conventionally provided,
A ventilation opening body with a lid that can be opened and closed is provided at the foundation of the building. However, since this system only utilizes natural ventilation, sufficient ventilation is not necessarily achieved. As a result, the area under the floor is not dry, and due to moisture, the wood rots.
This causes problems such as the formation of seawater.

The present invention is intended to fully solve this problem, and one embodiment thereof will be described in detail below with reference to the drawings.

1 is the proposed underfloor ventilation system. The structure is such that an intake opening 2B and an exhaust opening 2C are provided on the foundation 2A of the building 2, and the exhaust opening 2C is provided with an intake opening 2B and an exhaust opening 2C.
and the attic 2D of the building 2 are connected by a pipe-shaped body 4, and a ventilation opening 2E is provided in the attic. In this case, the pipe-shaped body 4 is made of, for example, FRP, and has a substantially square cross section as shown in FIG.
The ventilation opening 2E may be attached along the side wall 2F'' of the building, or it may be shaped like a rectangular tube.The ventilation opening 2E is a well-known one.3 is a ventilation system. It is located near the ridge.
Therefore, the configuration of this device 3 has an opening 2 on the roof.
A truncated conical ventilation tube 3A is connected to the opening, a ventilator 3B is connected to the upper opening of the ventilation tube, and a bottom plate 3C is attached to the bottom surface of the ventilation tube. An opening 3D is formed in the bottom plate, and a projecting edge 3E is formed around the opening. 3G is a urethane foam stretched on the inner surface of the ventilation tube. Reference numeral 5 denotes a rising pipe-shaped intake pipe connected to the opening 2B. Therefore, the configuration of this intake pipe 5 is such that the vertically long surface plate portion 5
A vertical frame 5C is formed by connecting left and right side walls 5B to the left and right edges of A in a substantially rectangular shape in cross section. The plate portions 5D are arranged in series, and a suitable number of horizontal groove-shaped openings 5D'' are formed in the upper plate portion. 5F is a connecting cylinder. In addition, in FIG. Although the case where two openings 2C are provided is shown,
An appropriate number will be installed depending on the size and shape of the building.

Since the proposed proposal is structured as described above,
The openings 2B and 2C can ensure ventilation since they will be covered with snow. in this case,
For example, wind enters under the floor from one opening 2B,
Air flows into the attic from the other opening 2C via the pipe-like body 4, and is exhausted to the outside air through the ventilation opening 2E and the ventilation device 3, thereby promoting ventilation under the floor. In this case, the temperature in the attic is 30°C in the summer and 20°C in the winter, and the temperature under the floor is about 15°C in the summer and 10°C in the winter, so the air in the pipe-like body 4 is promoted to rise.
As a result, efficient ventilation is carried out, preventing the occurrence of white stains, sloping roofs, etc., as well as preventing corrosion of the foundation and the like. In addition, the humid air rising inside the pipe-shaped body is removed by the ventilation device 3.
When this happens, ventilator 3B attempts to exhaust the air to the outside air. At this time, since a projecting edge 3E is formed around the opening of this ventilation device, even if dew condensation occurs, this part can catch it, and
Since the inside surface of the ventilation tube 3A is covered with urethane foam, it is insulated from the outside temperature and can minimize the occurrence of condensation.Furthermore, since the ventilation tube is configured in a truncated cone shape, it is possible to It can also prevent snow from accreting during a blizzard blowing from any direction.

[Brief explanation of the drawing]

Figure 1 is an enlarged front view of the main part, Figure 2 is the same as A-
3 is an enlarged view of the main part of FIG. 2, FIG. 4 is an enlarged sectional view taken along line B-B of FIG. 1, FIG. 5 is a front view of the present application, and FIG. is a schematic longitudinal sectional view taken along the line C-C of the same as above, FIG. 7 is a front view of the object of the present application, FIG.
The figure is an enlarged sectional view of the main part of FIG. 6. 1...Underfloor ventilation system, 2...Building, 2B...Intake opening, 2C...Exhaust opening, 2D...Attic, 4...Pipe-shaped body.

Claims (1)

[Scope of utility model registration request] An intake opening 2B and an exhaust opening 2C are provided in the foundation 2A of the building 2, and the exhaust opening 2C and the attic 2D of the building 2 are connected by a pipe-shaped body 4. A ventilation system 3 is provided near the ridge part of the roof, and the ventilation system 3 has a conical ventilation pipe 3A connected to the opening 2F' formed in the roof, and the upper end opening of the ventilation pipe 3A has a conical ventilation pipe 3A. A ventilator 3B is connected, a bottom plate 3C is provided on the lower surface of the ventilation tube 3A, an opening 3D is formed in the bottom plate 3C, and a ridge 3E is formed around the opening.
is formed, and a urethane foam 3G is stretched on the inner surface of the ventilation tube 3A, the upper end of the intake opening 2B is sealed, and a rising edge having a horizontal groove-shaped opening 5D' is formed on the upper side wall. An underfloor ventilation system characterized by connecting pipe-shaped intake pipes 5.