JP2002004741A - Ventilating opening for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilating opening for a building, which changes the opening ratio of an air inlet passage of the ventilating opening depending on external wind pressure, to thereby regulate an inflow quantity of air and prevent occurring of condensation. SOLUTION: The ventilating opening is formed of a cylindrical body which is penetrated through a wall surface of the building and includes the air introducing passage for taking outside air into a room. The cylindrical body houses therein a flow rate regulating plate for blocking the air introducing passage, and the flow rate regulating plate has a spring attached thereto, whereby the opening degree of the flow rate regulating plate is regulated depending on a spring force and wind pressure. Further, a decorative cover which is upward openable is attached to the tip of the cylindrical body, and a heat insulating material is arranged on a rear surface of the decorative cover.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building vent capable of natural ventilation in a building room.

[0002]

2. Description of the Related Art Conventionally, a ventilation opening that penetrates a wall surface of a house and takes in outside air into a room has been widely used for natural ventilation in a building room. This building ventilation opening consists of a cylinder with an air introduction passage for taking in outside air into the room. The inflow of outside air was adjusted accordingly.

[0003]

However, in the conventional vent, the air inflow passage in the cylinder remains open.
The opening / closing degree of the louver of the grill at the tip of the cylindrical body was adjusted stepwise according to the season and changes in temperature, so that the opening ratio is constant during normal use. Therefore, when a strong wind blows outdoors, the inflow of air increases according to the strength of the outside wind,
In some cases, strong blowing occurred indoors.

Further, when the room is being heated in winter, the louver is adjusted in the closing direction to reduce the opening ratio. In this case, when a cold outside wind is blown on the louver of the grill, there is a problem that the louver is cooled, dew condensation occurs, and drips down to the indoor side.

[0005] In view of such circumstances, the present invention changes the opening ratio of the air inflow passage of the ventilation port by the external wind pressure,
It is an object of the present invention to provide a building ventilation port that regulates the amount of air flowing in and prevents condensation from forming at the ventilation port.

[0006]

In order to achieve such an object, a building vent according to the first aspect of the present invention (hereinafter referred to as a "building vent of the first aspect") is used for a building. A ventilation port formed of a cylindrical body having an air introduction passage for taking in outside air into the room through the wall surface of the air supply passage, and a flow regulating plate for shielding the air introduction passage is provided in the cylindrical body. Has a spring mounted thereon, and the degree of opening and closing of the flow rate adjusting plate is adjusted by the spring force and wind pressure. A decorative cover that can be opened and closed upward is provided at the tip of the cylindrical body. Is provided with a heat insulating material.

[0007]

In the ventilating opening for a building according to the first aspect, a flow rate adjusting plate for shielding an air introduction path is provided in the cylinder, a spring is attached to the flow rate adjusting plate, and the flow rate is adjusted by the spring force and the wind pressure. Since the degree of opening and closing of the plate is adjusted, the flow rate adjusting plate in the air introduction path of the ventilation port is normally set to a certain degree of opening, and outside air flows in. However, when the outside wind blows and strong wind pressure is applied to the air introduction passage of the ventilation opening, the flow rate adjustment plate changes the aperture ratio so as to block the air introduction passage against the spring force, and the air flowing into the air introduction passage is changed. Adjust the volume.

[0008] Further, a decorative cover which can be opened and closed upward is provided at the tip of the cylindrical body, and a heat insulating material is provided on the back surface of the decorative cover. And squirt upward. At this time, even if the decorative cover is cooled from the back side, the outside air can be taken into the room without dew condensation due to the presence of the heat insulating material.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing a state where a building ventilation opening of the present invention is attached to a wall surface.
FIG. 2 is a cross-sectional view of the ventilation port.

Reference numeral 1 denotes a building ventilation port, which is formed of a cylindrical body 3 having an air introduction passage 2 which penetrates a wall surface 10 of the building and takes in outside air into the room. In the cylindrical body 3, a partition plate 31 is provided in the middle of the air introduction path 2 so as to form a constant opening 21 vertically at right angles to the air flow direction, and the tip of the cylindrical body 3 is enlarged in diameter. A flanged air supply portion 32 is formed.

A back plate 34 having an air supply hole 33 formed between the flange-shaped air supply portion 32 and the air introduction passage 2 of the cylinder 3.
The support plate 35 is provided on the back plate 34. Reference numeral 4 denotes a flow rate adjusting plate, which is composed of a receiving plate 41 and an inner cylinder 41 slidably fitted in the supporting outer cylinder 35. The inner cylinder 41 projects from the back surface of the receiving surface 43 of the receiving plate 41. It is provided. The flow regulating plate 4 is attached to the support outer cylinder 35 by inserting the inner cylinder 41 from behind the cylinder 3 so as to shield the opening 21 of the air introduction path 2.

A compression spring 5 is provided between the back plate 34 and the receiving plate 41 in a state of being inserted inside the supporting outer cylinder 35 and the inner cylinder 41, and the flow adjusting plate 4 is free from external wind. At this time, the compression spring 5 is urged to push back to the outdoor side, and the interval between the partition plate 31 and the receiving plate 41 is widened. on the other hand,
When the receiving plate 41 is pressed against the indoor side by the pressure of the wind blown into the air introduction passage 2 from outside, the spring 5 is compressed, and the distance between the partition plate 31 and the receiving plate 41 is reduced.

A decorative cover 6 is provided on the front side of the flange-shaped air supply section 32 provided at the end of the cylindrical body 3 so as to close the opening 321. This decorative cover 6
The upper and lower parts are divided into a movable cover 61 and a fixed cover 62, and heat insulating materials 63 and 64 are provided on the back surface, respectively. The fixed cover 62 is fitted and fixed to a lower portion of the opening 321, and the movable cover 61 is rotatably attached to the upper end of the fixed cover 62 via a hinge 65. Above the middle part of the movable cover 61,
One end of the adjusting lever 66 is rotatably attached, and the other end of the adjusting lever 66 is slidably attached to a slit 322 formed in the flange-shaped air supply portion 32. 7
Is a filter that collects dust, soot, pollen, and the like contained in the outside air, and is attached to and held by the back plate 34 from the flange-shaped air supply unit 32 side.

Next, the method of using the building vent of the present invention will be described. First, as shown in FIG. 1, a duct 12 is provided in a through hole 11 provided through a wall 10 of a building, and a tubular body 131 of an outdoor hood 13 is fitted into the duct 12 from the outdoor side and connected. Subsequently, the tubular body 3 of the building ventilation opening 1 is fitted into the duct 12 from the indoor side and connected. The connection of the building ventilation opening 1 and the outdoor hood 13 to the duct 12 is made via an adhesive.

In the building ventilation port 1 connected to the duct 12 as described above, outside air flows from the outdoor hood in the direction of the arrow, passes through the duct, and enters the room through the building ventilation port 1. .

When there is no outside wind, the compression spring 5 urges the flow regulating plate 4 to push it back to the outdoor side by the spring force, so that the space between the partition plate 31 and the receiving plate 41 is widened, The opening ratio of the channel is large. Outside air is taken into the room and naturally ventilated. On the other hand, when the wind strongly blown from the outside enters the air introduction passage 2, the wind pressure is applied to the receiving plate 41 of the flow control plate 4, and the flow control plate 4 is pressed toward the indoor side. At this time, since the spring 5 is compressed and the interval between the partition plate 31 and the receiving plate 41 is reduced, the opening ratio of the air flow path is reduced, and the amount of outside air flowing into the room is adjusted to be reduced.

Further, when cold outside air flows into the air introduction passage 2, it hits the decorative cover 6 and blows upward. Although the decorative cover 6 is cooled from the back side, since the heat insulating materials 63 and 64 are provided, the outside air can be taken into the room without dew condensation.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific embodiment is not limited to this embodiment, and a design change or the like may be made without departing from the gist of the present invention. Even if present, it is included in the present invention.

For example, the flow rate adjusting plate 4 has a structure composed of a receiving plate 41 and an inner cylinder 41 slidably fitted in the supporting outer cylinder 35, and is urged by the compression spring 5 to push it back to the outdoor side. However, as shown in FIG. 3, one end of each of the flow control plates 4a, 4a is rotatably attached to the air introduction path 2a via the support shaft 40a so as to open to the outdoor side. A tension spring 5a may be attached between the flow rate adjusting plates 4a, 4a that are open to the outside.

The decorative cover is vertically movable.
Although the one divided into the fixed cover 62 and the fixed cover 62 is used, a single movable cover may be used.

[0021]

As described above, according to the ventilation port for a building of the present invention, a flow regulating plate for shielding the air introduction passage is provided in the cylinder, and a spring is attached to the flow regulating plate. Since the opening / closing degree of the flow control plate is adjusted by the force and the wind pressure, even if the outside wind blows strongly, the flow control plate blocks the air introduction path against the spring force and the aperture ratio is reduced. This eliminates the strong blowing of outside air into the room.

Further, a decorative cover which can be opened and closed upward is provided at the tip of the cylindrical body, and a heat insulating material is provided on the back surface of the decorative cover. The air that has spilled upward due to collision with the air is efficiently exchanged in the room due to natural convection, and fresh outside air can be introduced into the room without causing condensation on the decorative cover.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a state in which a building ventilation opening of the present invention is attached to a wall surface.

FIG. 2 is a cross-sectional view illustrating an embodiment of a building vent according to the present invention.

FIG. 3 is a cross-sectional view illustrating another example of a flow rate adjusting plate used for a building vent according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ventilation opening for buildings 2 Air introduction path 3 Cylindrical body 4, 4a Flow control plate 5, 5a Spring 6 Decorative cover 64, 65 Insulation material

Claims (1)

[Claims] 1. A ventilation port comprising a cylindrical body having an air introduction passage for penetrating a wall surface of a building and introducing outside air into a room, wherein a flow regulating plate for shielding the air introduction passage is provided in the cylinder. A spring is attached to the flow adjustment plate, and the opening and closing degree of the flow adjustment plate is adjusted by the spring force and wind pressure. A decorative cover that can be opened and closed upward is provided at the tip of the cylindrical body. A ventilation opening for a building, wherein a heat insulating material is provided on a back surface of the decorative cover.