JP2014066404A - Outer wall terminal ventilation opening - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure water tightness by being adaptable to several kinds of ducts with different outer diameters.SOLUTION: An outer wall terminal ventilation opening is configured in such a manner that a duct connection part 11 having a seal packing 10 which covers a duct 7 and to which an inner peripheral part 9 having an opening whose inner diameter dimension A is smaller than an outer diameter dimension B of the duct 7 is attached is provided at an opening part 3 of a flange part 4. Thereby, water tightness can be secured by the duct connection part 11 which is adaptable to several kinds of ducts with different diameters, and even when rain, snow and the like infiltrate into the outer wall terminal ventilation opening during a snowstorm or a storm, a problem can be eliminated in which, in a cold district during a severe winter season, dew condensation water and rain water flowing out of the outer wall terminal ventilation opening freeze and cause peeling damage on an outer wall 1, and also, damage on durability of house materials can be prevented. Therefore, the outer wall terminal ventilation opening can be acquired which can secure water tightness by being adaptable to several kinds of ducts with different outer diameters.

Description

  The present invention relates to an outer wall terminal ventilation port that is attached to the outdoor side of a ventilation port to ventilate a building.

  In recent years, a house in a cold district has a heat insulating structure on its outer wall so that the indoor temperature is not affected by the outside air temperature, and the air tightness in the room is also increased accordingly. For this reason, a ventilation opening is required, but rainwater may enter from the outer wall terminal ventilation opening attached to the outdoor side of the ventilation opening during heavy winds, and condensation water in the duct may occur in winter. The outer wall may be peeled and damaged by freezing water drops in winter.

  A conventional external wall terminal ventilation port of this type is formed by integrating a rubber packing entirely between a mounting plate and a ventilation plate of a duct installed on the outer wall surface of a ventilation path communicating between the room and the outside described in Patent Document 1. It has been known that it is mounted and the peripheral edge of the through hole of the rubber packing is naturally bent and brought into close contact with the duct, and a hood body is installed outside the ventilation plate.

  Hereinafter, the outer wall terminal ventilation opening will be described with reference to FIGS. 5 and 6.

  As shown in FIG. 5, a rubber packing 104 is integrally attached between the mounting plate 102 and the ventilation plate 103 of the duct 101 installed on the outer wall surface of the ventilation path communicating between the room and the outside. The peripheral edge of the through hole is naturally bent 105 and brought into close contact with the duct 101, and a hood body is installed outside the ventilation plate 103.

JP 2007-40610 A

  In such a conventional outer wall terminal ventilation opening, there are several types of ducts that form a ventilation path that communicates with each other even if the nominal duct diameter is the same, such as a vinyl chloride duct and a spiral steel pipe. When the diameter of the nominal duct is φ100, such as a duct or an aluminum flexible duct, the outer diameter is slightly different from φ102 mm to φ114 mm.

  Further, as shown in FIG. 5, when attached to the outer diameter of the duct 101 having an outer diameter of φ114 mm, the contact area between the rubber packing 104 and the duct 101 is closely adhered to ensure water tightness. As described above, when the same rubber packing 104 is attached to the outer diameter of the duct 106 having an outer diameter of φ102 mm, the contact area between the rubber packing 104 and the duct 101 is small, and there is a possibility that the tight adhesion portion is reduced and water tightness cannot be secured. There was a problem that there was a possibility.

  Therefore, the present invention solves the above-described conventional problems, and an object of the present invention is to provide an outer wall terminal ventilation port that can ensure water tightness corresponding to several types of ducts having different outer diameters.

  In order to achieve this object, the present invention is attached to the outer wall, and has a flange portion having an opening at the substantially center in communication with the outdoor side opening provided on the outer wall, and is attached to the flange portion. A hood that is inserted into the outdoor side opening and communicates with a duct that communicates between the room and the outside, and when the flange portion is attached to the outer wall, the hood has a predetermined length from the outdoor side opening. A duct connecting portion having a seal packing that surrounds the duct and is provided so as to protrude only on the outer periphery of the duct, the inner diameter of which is smaller than the outer diameter of the duct, and the inner periphery of the opening closely contacts the duct. This is provided at the opening, thereby achieving the intended purpose.

  According to the present invention, a flange portion that is attached to the outer wall and has an opening portion that communicates with an outdoor side opening portion provided in the outer wall at a substantially center, and the flange portion is attached to the outdoor side opening portion. A hood that is inserted and communicated with a duct that communicates between the room and the outdoors, and is provided so as to protrude by a predetermined length from the outdoor side opening into the hood when the flange portion is attached to the outer wall. A structure is provided in which the duct connection portion having a seal packing that wraps around the duct and has an inner peripheral portion of the opening that is smaller than the outer diameter size of the duct is provided in the opening portion of the flange portion on the outer periphery of the duct. As a result, water tightness can be secured with duct connections that can accommodate several types of ducts with different outer diameters, and rain, snow, etc. enter the outer wall terminal ventilation openings during snowstorms and storms. However, condensation water and rain water overflowing from the outer wall terminal vent in a cold region in the severe winter season will freeze and cause peeling damage to the outer wall, thereby preventing the durability of the housing material from being impaired. Therefore, it is possible to provide an effect that it is possible to provide an outer wall terminal ventilation port that can ensure water tightness corresponding to several types of ducts having different outer diameters.

The perspective view which shows the structure of the outer wall terminal ventilation port of Embodiment 1 of this invention. Side sectional view showing the configuration of the outer wall terminal ventilation opening The perspective view which shows the duct connection part of the outer wall terminal ventilation opening Side sectional view showing the configuration of the outer wall terminal ventilation opening Side sectional view showing the configuration of a conventional outer wall terminal ventilation opening Side sectional view showing another duct diameter configuration of the outer wall terminal ventilation opening

  The outer wall terminal ventilation port according to claim 1 of the present invention is attached to the outer wall, and has a flange portion having an opening communicating with an outdoor side opening provided in the outer wall at a substantially center, and is attached to the flange portion. And a hood that is inserted into the outdoor side opening and communicates with a duct that communicates the room and the outdoors, and when the flange portion is attached to the outer wall, a predetermined length in the hood from the outdoor side opening. A duct connecting portion having a seal packing that wraps around the duct and has an inner peripheral portion having an inner diameter smaller than the outer diameter of the duct is in close contact with the outer periphery of the duct provided so as to protrude. The opening is provided at the opening.

  As a result, watertightness can be ensured in the duct connection part that also supports several types of ducts with different outer diameters, even if rain, snow, etc. intrudes into the outer wall terminal ventilation opening during a snowstorm or storm, In the cold region of the severe winter season, the condensed water and rain water overflowing from the outer wall terminal vents will freeze, causing no peeling damage to the outer wall and preventing damage to the durability of the housing. There is an effect that it is possible to provide an outer wall terminal ventilation opening that can secure water tightness corresponding to several types of ducts having different diameters.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1 and FIG. 2, a flange portion 4 attached to the outer wall 1 and having an opening 3 communicating with an outdoor-side opening 2 provided on the outer wall 1 at the substantially center, and attached to the flange portion 4 When the flange 4 is attached to the outer wall 1 with, for example, a screw (not shown), the hood 8 is connected to the duct 7 that is inserted into the outdoor side opening 2 and communicates between the indoor 5 and the outdoor 6. The duct 7 is wrapped around the outer periphery of the duct 7 provided so as to protrude from the outdoor side opening 2 into the hood 8 by a predetermined length (for example, only slightly protruding from the duct connecting portion 11 described later). The diameter of the inner peripheral portion 9) is smaller than the outer diameter B of the duct 7 and the opening portion 3 of the flange portion 4 is provided with a duct connecting portion 11 having a seal packing 10 to which the inner peripheral portion 9 of the opening closely contacts. .

  The seal packing 10 is made of, for example, a rubber-like material having elasticity and flexibility.

  The outer diameter dimension of the duct 7 shown in FIG. 2 is φ114 mm.

  With the above configuration, the elasticity of the seal packing 10 is utilized and the duct 7 is compressed and brought into close contact, so that the water tightness of the outer periphery of the seal packing 10 and the duct 7 is ensured.

  As shown in FIG. 3, since the duct connecting portion 11 has a simple shape, different inner diameter dimensions A (see FIG. 1) at the time of attaching the seal packing 10 to different duct outer diameter dimensions B (see FIG. 1). 1)) can be easily manufactured.

  Therefore, as shown in FIG. 4, a duct connecting portion 11A having a seal packing 10A corresponding to the duct 7A whose outer diameter is φ102 mm smaller than φ114 mm shown in FIG. 2 can be obtained, and compressed into the duct 7A. The water tightness is secured.

  As a result, watertightness can be ensured corresponding to several types of ducts having different outer diameters.

  Since the outer wall terminal ventilation opening according to the present invention makes it possible to ensure water tightness, it is also useful as an air supply opening installed indoors.

DESCRIPTION OF SYMBOLS 1 Outer wall 2 Outdoor side opening 3 Opening part 4 Flange part 5 Indoor 6 Outdoor 7 Duct 7A Duct 8 Hood 9 Inner peripheral part 10 Seal packing 10A Seal packing 11 Duct connection part 11A Duct connection part A Inner diameter B Duct outer diameter

Claims (1)

A flange portion that is attached to the outer wall and has an opening that communicates with an outdoor-side opening provided in the outer wall, and a flange portion that is attached to the flange portion and is inserted into the outdoor-side opening to allow indoor and outdoor use. A hood that communicates with a duct that communicates, and when the flange portion is attached to the outer wall, on the outer periphery of the duct that is provided so as to project a predetermined length into the hood from the outdoor side opening, An outer wall terminal ventilation characterized in that a duct connection part having a seal packing that wraps around the duct and has an inner peripheral part of an opening having an inner diameter smaller than the outer diameter of the duct is in close contact with the opening. mouth.

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