JPH07207902A - Ventilation port mounting structure for outer wall material - Google Patents

Abstract

(57) [Abstract] [Purpose] No indoor air leaks to the heat insulating space in the heat insulating wall from the ventilation hole that penetrates through the heat insulating wall, and the filling of the sealant at these necessary points and its confirmation are also possible. An object of the present invention is to provide a structure for easily attaching a ventilation port to an outer wall material. A through-cylinder 2 having a flange 2A on one outer periphery and having a length penetrating the outer wall 1 is inserted into a through hole 1A formed in the outer wall 1, and the flange 2A is brought into contact with the outer surface of the outer wall 1. A waterproof hood 3 that is positioned and fixed and is attached to the outdoor side end of the through-cylinder 2 is disposed with its base portion 3A in contact with the flange 2A, and the outer periphery of the flange 2A and the outer periphery of the base portion 3A of the waterproof hood 3 and the outer wall 1. The space between them is sealed with a sealing material 4 in a watertight manner, and an insert pipe 3B extending into the through cylinder 2 is integrally provided on the inner surface of the waterproof hood 3, and the outer surface of the insert pipe 3B and the through cylinder are provided. The seal ring 5 is press-fitted into the gap between the inner surface and the inner surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a ventilation port to an outer wall material.

[0002]

2. Description of the Related Art In an outer wall structure of a house or the like in a cold region, a heat insulating mat, a waterproof sheet or a heat insulating space is incorporated between an inner wall material and an outer wall material so that the indoor temperature in the cold season is not affected by the outside air temperature. It is usually said that.
By the way, since these outer wall structures have high heat insulation and airtightness in the room at the same time, it is necessary to provide one or more ventilation ports according to the size of the room volume.

Conventionally, as shown in FIG. 5, as a structure for attaching a ventilation port to the outer wall material, as shown in FIG. 5, an inner wall material W ₁ , a moistureproof sheet W ₂ , a heat insulating mat W ₃ , a heat insulating board W ₄ , a moisture resistant sheet W.
₅ , insulation wall W consisting of ventilation space W ₆ and outer wall material W ₇
A through hole H extending from the inside to the outside of the room is provided in the inside, and a corrosive resistant through cylinder P, for example, a synthetic resin round tube or a square tube P is penetratingly arranged and fixed to the outside of the through cylinder P. fitted a waterproof hood F with inserted pipe F ₂ to the flange portion F ₁ and the base inner surface to the base outer circumference, and seals between the flange portion F ₁ and the outer wall member W ₇ in the sealing material S, the indoor side For example, it has a structure in which a ventilation fan M is provided as needed.

[0004]

BACKGROUND Problems of the Related Art However, in the case of vent structure for mounting the exterior wall material, leak indoor warm air to the outer walls W ₇ rear surface of the ventilation space W _6, the outer wall occurs inside condensation by internal and external temperature difference in this part There was a problem that the frost damage phenomenon of the material W ₇ occurred. That is, in the case of the structure for attaching the ventilation port to the outer wall material,
As shown in the enlarged view of FIG. 6, a seal R ₁ is formed between the outer surface of the outdoor side of the through cylinder P and the outer wall material W _7, and a seal of R ₂ is formed between the inner surface of the through cylinder P and the outer surface of the inlet pipe F ₂ of the waterproof hood F. It is difficult to perform completely, and if the insect net N or the like provided in the waterproof hood F is clogged with dust, the exhaust performance deteriorates, and the damp air in the room due to the pressure of the forced fan M indicates the arrow X. As described above, the gas leaks into the ventilation space W ₆ through the gap R ₂ R ₁ and forms dew on the inner surface of the outer wall material W ₇ .

Such a problem can be prevented by filling the clearance R ₂ R ₁ with a sealing material. However, the installation work of the through cylinder P is performed after the heat insulating wall is completed, and the waterproof hood F is connected to the through cylinder P. Since it is usually carried out after the installation work is completed, the above-mentioned gap R ₂ R ₁ is covered by the flange portion F ₁ , and even if a sufficient amount of sealing material is put and fitted, the gap R ₂ R 1 It is not possible to confirm whether ₁ is completely filled. For this reason, incomplete sealing often occurs.

[0006]

SUMMARY OF THE INVENTION In view of the above problems, the present invention prevents the leakage of indoor air into a heat insulating space from a ventilation port penetrating a heat insulating wall, and yet seals these necessary parts. The purpose of the present invention is to provide a structure for attaching a ventilation port to an outer wall material that can be easily filled and confirmed.

[0007]

That is, in the structure for attaching a ventilation port to an outer wall member according to the present invention, a through cylinder 2 having a flange 2A on one outer periphery and having a length penetrating the outer wall 1 is formed in the outer wall 1. The flange 2A is inserted into the provided through hole 1A.
Is fixed to the outer surface of the outer wall 1 by positioning, and a waterproof hood 3 attached to the outdoor side end of the communicating cylinder 2 is disposed with its base 3A in contact with the flange 2A, and the outer periphery of the flange 2A and the waterproof hood. The outer periphery of the base portion 3A of 3 and the outer wall 1 are integrally and watertightly sealed by a sealing material 4, and the inner surface of the waterproof hood 3 is integrally provided with an insertion tube 3B extending into the through cylinder 2. The seal ring 5 is press-fitted into the gap between the outer surface of the insertion tube 3B and the inner surface of the through cylinder 2.

[0008]

Embodiments of the present invention will be described below. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is an enlarged sectional view of an essential part of the embodiment, FIG. 3 is an enlarged sectional view of an essential part of another embodiment, and FIG. 4 is a front view seen from the outside of the embodiment. It is a figure.

The ventilation port mounting structure for the outer wall member of the present invention has a length that penetrates the outer wall 1 and has a flange 2A on one outer periphery.
A through-hole cylinder 2 having a through hole 1A formed in the outer wall 1 is inserted, the flange 2A is brought into contact with the outer surface of the outer wall 1 to be positioned and fixed, and a waterproof hood 3 attached to the outdoor side end of the through-cylinder 2 is attached. Is arranged with its base 3A in contact with the flange 2A, and a sealing material 4 is provided between the outer periphery of the flange 2A and the outer periphery of the base 3A of the waterproof hood 3 and the outer wall 1.
Is integrally and watertightly sealed, and an insertion pipe 3B extending into the through cylinder 2 is integrally provided on the inner surface of the waterproof hood 3, and is provided in a gap between the outer surface of the insertion pipe 3B and the inner surface of the through cylinder 2. The seal ring 5 is press-fitted.

In the above embodiment, the through cylinder 2 is made of a corrosion resistant material, for example, a synthetic resin such as vinyl chloride resin. The flange 2A provided on the outer periphery of one end of the through cylinder 2 is provided at a position slightly inside the end of the through cylinder 2 as shown in FIG. 1, and as shown in FIG. It may be provided in the section. The former case has an advantage that the temporary fixing of the waterproof hood 3 is stable, and the latter case has an advantage that the structure is simple and the installation workability is improved. Further, the insertion tube 3B may be a straight tube, but it is preferable to use one in which a protruding ridge 3C for sealing is integrally formed at the end as shown in the figure. In this case, in cooperation with the seal ring 5, reliable sealing is possible and the strength of the end portion of the insertion tube 3B is improved, which is convenient. As the seal ring 5, a seal packing or the like having a rubber-like elasticity and having a thickness to be compressed and inserted in a gap between the outer surface of the insertion tube 3B and the inner surface of the through cylinder 2 is used.

It is desirable to provide a flange 3D on the outer surface of the base of the waterproof hood 3 as shown in the figure. Since the filling pocket of the sealing material 4 is formed by this flange 3D, the filling operation of the sealing material 4 becomes easy. Further, in the figure, 6 indicates an insect-proof net provided in the waterproof hood 3,
From the viewpoint of preventing clogging, it is possible to use insect repellent and as rough as possible. A water drop guide plate 3E is preferably provided on the lower surface of the waterproof hood 3 in order to prevent dew condensation water drops in the through cylinder or rain water drops blown into the waterproof hood from flowing along the outer wall.

[0012]

In the structure for attaching the ventilation port to the outer wall material of the present invention, since the opening of the through cylinder 2 is sealed with the sealing material 4 on the outer surface of the outer wall 1 together with the base portion of the waterproof hood 3, the inside of the through cylinder 2 is assumed. Even if dew condensation may occur, it does not flow into the inside of the outer wall 1. Further, the base of the waterproof hood 3 is supported on the inner surface of the through cylinder 2 by the insertion tube 3B, and the seal ring 5 is interposed between them, so that the dew condensation water flows from the inner surface of the through cylinder 2 to the waterproof hood 3 and the through cylinder 2. It is also prevented from penetrating along the contact interface. Further, the construction of the ventilation port mounting structure to the outer wall material of the present invention is performed by inserting the through cylinder 2 from the outdoor side after constructing the outer wall 1 and then inserting and connecting the waterproof hood 3 with the seal ring 5 mounted on the outer circumference of the insertion tube 3B. After that, since the sealing material 4 may be put on the outer periphery of the connection interface, a waterproof seal can be achieved safely and reliably without a construction failure.

[0013]

As described above, according to the present invention, the sealing portion of the through-cylinder 2 serving as the indoor / outdoor ventilation path is the outer surface of the outer wall 1, and the contact interface between the waterproof hood 3 and the through-cylinder 2 is the seal ring 5. Because of the sealed structure, it is possible to surely achieve the airflow blocking and waterproofing between the inner surface of the communicating cylinder 2 and the inner wall of the outer wall, and also the sealing of the ventilation port can be performed in a state that can be easily observed from the outside. It has various effects such as ensuring the sealing property.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the embodiment.

FIG. 3 is an enlarged cross-sectional view of a main part of another embodiment.

FIG. 4 is a front view of the embodiment as seen from the outside of the room.

FIG. 5 is a cross-sectional view of a conventional example.

FIG. 6 is an enlarged sectional view of a main part of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Outer wall 1A ... Through hole 2 ... Through cylinder 2A ... Flange 3 ... Waterproof hood 3A ... Base part 3B ... Insertion tube 4 ... Sealing material 5 ... Seal ring

Claims (1)

[Claims] 1. A through-cylinder 2 having a flange 2A at one end and having a length penetrating the outer wall 1 is inserted into a through hole 1A formed in the outer wall 1, and the flange 2A is brought into contact with the outer surface of the outer wall 1. A waterproof hood 3 that is positioned and fixed by being attached and is attached to the outdoor side end of the through-cylinder 2 is disposed with its base portion 3A in contact with the flange 2A, and the outer periphery of the flange 2A and the outer periphery of the base portion 3A of the waterproof hood 3 and the outer wall. 1 is integrally and watertightly sealed with a sealing material 4, and an insert pipe 3B extending into the through cylinder 2 is integrally provided on an inner surface of the waterproof hood 3 and an outer surface of the insert pipe 3B. A ventilation port mounting structure for an outer wall member, characterized in that a seal ring (5) is press-fitted into a gap between the inner surface of the through cylinder (2).