JP2501252Y2 - Ventilation equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device attached to an outer wall of a building for ventilation of the building.

[0002]

2. Description of the Related Art As a conventional ventilator of this type, a ventilator having a structure as shown in FIG. 6 is known. That is, this ventilation device has a cylindrical portion 1 penetrating through a hole formed in a wall of a building, a circular flange portion 2 that is screwed by abutting against an outer surface of the wall of the building, and protrudes outward from the flange portion 2. It is provided with a hood part 3 and the like. The circular flange portion 2 has a flat outer surface, and the hood portion 3 is provided in case of rain.
Rainwater attached to the outer surface of the flange portion 2 spreads to the outer periphery of the flange portion 2, and dirt attached to the outer surface of the hood portion 3 and the flange portion 2 moves to the outer surface of the building wall together with the rainwater during long-term use, There was a problem of soiling the outer wall of the building.

[0003]

The present invention solves such a problem. In rainy weather, rainwater adhering to the outer surface of the hood portion or the flange portion does not move to the outer surface of the building wall, and It is an object of the present invention to provide a ventilation device that does not stain the outer surface of a wall.

[0004]

In order to solve this problem, the present invention is directed to a cylindrical body which penetrates through a hole formed in a wall of a building, and an insect repellent which is set in the front end portion of the cylindrical body. And a circular flange part that is externally fitted to the front end part of the cylindrical body and abuts on the outer surface of the wall of the building and is screwed, and projects outward from the inner peripheral part of the flange part. It is composed of a substantially spherical hood portion, a ventilation hole is further formed in the front lower part of the hood portion, and a water repellent portion connected in an annular shape except the lower end portion is protruded forward on the outer periphery of the flange portion. It will be.

[0005]

With this configuration, when raining, rainwater attached to the outer surface of the flange prevents the rainwater attached to the outer surface of the hood and the flange from spreading to the outer surface of the flange and moving to the outer surface of the building wall. There is no problem that dirt adhering to the outer surface of the hood portion or the flange portion moves to the outer surface of the wall of the building together with the rainwater and stains the outer surface of the wall of the building.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 5, a ventilator according to the present embodiment has a cylindrical body 13 penetrating a hole 12 formed in a wall 11 of a building.
And a insect-proof net body 14 that is fitted and set in the front end portion of the cylinder body 13, and is fitted onto the front end portion of the cylinder body 13 and abuts against the outer surface of the wall 11 of the building and is fixed with screws 15. And a substantially spherical hood portion 17 protruding outward from the inner peripheral portion of the flange portion 16. More specifically, one end of a pipe 18 extending toward the building is externally fitted and connected to the cylindrical body 13. Also, the net body 14
A water drain hole 19 for draining water that has entered the inside is provided at the lower end of the. Further, the front lower part of the hood portion 17 is cut off at a substantially right angle in a side surface shape to form a vent hole 20, and a plurality of ribs 21 are provided in the vent hole 20 at appropriate intervals in the left-right direction when viewed from the front. It is designed to prevent nesting of small birds. Further, the outer periphery of the flange portion 16 is a water-repelling portion connected in an annular shape except at the lower end portion.
22 is projected forward, the water-repelling portion 22 faces downward at the lower end of the flange portion 16, and the downward-facing portion 23 from the flange portion 16 extends between the water-repelling portions 22 at the lower end. 24 is a vent hole formed inside the rear end of the cylindrical body 13, 25 is a tongue formed at the rear end of the cylindrical body 13 at equal intervals in the circumferential direction,
The tongue piece 25 is deformed outward so as to come into pressure contact with the inner surface of the pipe 18.

By the way, the above-mentioned components are made of a synthetic resin such as ABS resin, and the fitting portions of the tubular body 13 and the net body 14 are fixed by adhesion, and the tubular body 13 and the flange. The fitting portion with the portion 16 is also adhesively fixed.

In the above structure, the ventilator installed so as to penetrate the wall 11 of the building has a hollow interior, and air is in the vicinity of the vent hole 20 in the lower front part of the hood part 17 and the rear end of the cylindrical body 13. Ventilated through internal vents 24. The vent hole 20 at the lower front side of the hood portion 17 is directed downward, so that rainwater etc. do not easily enter the inside of the ventilation device,
Even if rainwater or the like enters the inside of the net body 14, it will escape through the water drain hole 19 and be discharged to the outside. Further, as described above, the outer periphery of the flange portion 16 is formed with the water-repelling portion 22 which is connected to the outside of the lower end portion in an annular shape. It is possible to prevent the adhered rainwater from spreading to the outer periphery of the flange portion 16 and moving to the outer surface of the wall 11 of the building by the water repelling portion 22, and the rainwater is a flange between the water repelling portions 22 at the lower end. It can be dropped from the portion 16 below the downward portion 23, and the outer surface of the wall 11 of the building is not soiled by the dirt attached to the outer surfaces of the hood portion 3 and the flange portion 2.

[0009]

As described above, according to the present invention, in rainy weather, rainwater adhering to the outer surface of the hood portion or the flange portion spreads to the outer periphery of the flange portion and moves to the outer surface of the wall of the building. There is a problem that the water provided on the outer periphery can be prevented, and the dirt attached to the outer surface of the hood portion and the flange portion moves to the outer surface of the wall of the building together with the rainwater and stains the outer surface of the wall of the building. Absent.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a ventilation device according to an embodiment of the present invention.

FIG. 2 is a perspective view from the front showing the assembled state of the ventilation device.

FIG. 3 is a perspective view from the rear showing a completed state of assembly of the ventilation device.

FIG. 4 is a cross-sectional view of the ventilation device in a completed assembled state.

FIG. 5 is a cross-sectional view showing a state in which the ventilation device is attached to a wall of a building.

FIG. 6 is a perspective view of a ventilation device in a conventional example.

[Explanation of symbols]

 11 Wall 12 Hole 13 Cylindrical Body 14 Net Body 15 Screw 16 Flange 17 Hood 18 Pipe 19 Water Draining Hole 20 Vent 21 Rib 22 Water Shield 23 Vent

Claims (1)

(57) [Scope of utility model registration request] 1. A tubular body that penetrates through a hole formed in a wall of a building, an insect-proof net body that is set by being fitted into the front end portion of the tubular body, and an external fitting to the front end portion of the tubular body. It is composed of a circular flange part that integrally comes into contact with the outer surface of the wall of the building and is fixed with a screw, and a substantially spherical hood part that projects outward from the inner peripheral part of the flange part. The ventilator is characterized in that a vent is formed in the lower part of the front side, and a water-repelling part connected to the outside of the lower end part in an annular shape is projected forward on the outer periphery of the flange part.