JPH023065Y2 - - Google Patents

Description

[Detailed explanation of the invention] Industrial field of application This invention provides a ventilation wall made of heat insulating material inside the exterior wall of a building, under the roof, etc., and connects this exterior wall with the ventilation wall. A housing system that adjusts the temperature and humidity of a building by forming a ventilation layer in the gap, absorbing solar heat through walls, roofs, etc., or introducing natural ventilation to control the flow and stop of airflow within the ventilation layer. The present invention relates to an improvement of an air damper having heat insulating properties that is attached to the vent of the ventilation wall in order to control airflow in the housing system (hereinafter referred to as the subject housing system).

Prior Art In the present housing system, conventional valves or dampers for controlling airflow in the ventilation layer are those described in Utility Model Application No. 57-14303, and Utility Model Application No. 58-111323, which was written by the same inventor as the present invention. There was a number etc.

In each of these, a valve is supported in a space chamber provided in the casing (box) so as to be openable and closable, and an air inlet that communicates with the space chamber is provided on one side of the box in the front and back direction.
Further, the box body has an air outlet that communicates with the space chamber on the other side in the front and rear directions, and is attached to the ventilation wall with the air outlet facing, for example, the above-mentioned ventilation layer. Then, the valve is opened by the negative pressure generated by the airflow flowing from the bottom to the top through the ventilation layer, and the valve is opened by the airflow flowing from the top to the bottom inside the ventilation layer.

Problems to be solved by the invention However, in such a damper, when the valve is opened, the air that flows in from the inlet passes around the tip and other parts of the valve, and then escapes from the outlet to the ventilation layer. Therefore, to ensure smooth ventilation, it is necessary to open the valve sufficiently in response to the negative pressure on the outlet side. However, in order to guarantee a large opening/closing angle of the valve, the thickness of the damper must increase accordingly. Furthermore, in order to increase the amount of ventilation, it is also necessary to widen the width of the damper. Due to these factors, the damper has to be large. Therefore, when installed on a ventilation wall, it tends to come into contact with pillars, braces, and other structural materials, which sometimes creates difficulties when selecting an installation location and performing installation work.

In addition, conventional dampers are installed by locking the flanges protruding on the upper and lower surfaces of the dampers to the upper and lower edges of a vent formed in the ventilation wall.
Since there are various thicknesses of boards used as ventilation walls, it is necessary to prepare many types of dampers having flanges with thicknesses corresponding to these boards.

In view of these problems of the conventional technology, the present invention was developed by
One purpose is to provide an adiabatic damper that can smoothly vent ventilation without increasing the thickness of the damper or increasing the width of the damper.

Another object of the present invention is to provide a heat insulating air damper that can be attached to a plurality of types of ventilation walls having different thicknesses, although it is a single type of damper.

Means for Solving the Problems The present invention provides an insulating air damper that is attached to a ventilation wall in order to communicate the inner space of the ventilation wall with the ventilation layer formed between the outer wall, etc. and the ventilation wall. , consists of a box body and a one-way valve swingably suspended within the box body, the box body is made of a heat insulating material such as expanded styrene, and air is provided at the bottom of the front radiation prevention wall. an air inlet at the bottom of the rear radiation prevention wall, an air chamber inside that communicates with the mainstream outlet and inlet and reaches the upper part of the box body; Each of the valves is provided with a sub-outlet for air communicating with the space chamber in the upper part, and the valve is formed of a lightweight sheet body such as a plastic film, and allows the air to flow from a mounting portion provided on the ceiling of the space chamber. It is suspended so as to cover the opening on the side of the space chamber at the entrance, and has an opening at the upper part of its surface that allows air to pass through, and the negative pressure generated by the airflow flowing from the bottom to the top within the ventilation layer. is operated to open the air from the inner space of the ventilation wall through the inlet, the space chamber, and the main outlet, and through the inlet, the space chamber, the valve opening, and the sub-outlet to the ventilation layer. In addition, in the air damper having the above structure, the box is located below the front radiation prevention wall. A lower flange with a required thickness is provided, and an upper flange is provided above the rear radiation prevention wall, and a plurality of steps are formed on the front side of the upper flange in the thickness direction of the flange. The part from the bottom of the box to the back of the lower flange is engaged with the lower edge of a vent for installing a damper formed at a predetermined position in the ventilation wall, while a predetermined step on the front of the upper flange is engaged. It is characterized in that it is locked to the upper edge of the vent.

Function In this invention, a sub-air outlet is provided at the top of the front radiation prevention wall of the box body, and an opening is also provided at the top of the valve that is swingably suspended in the space chamber communicating with the sub-outlet. When the valve is opened due to negative pressure generated on the front side of the box, not only the inlet, the space chamber, and the main stream outlet but also the inlet, the space chamber, the opening of the above-mentioned valve, and the side flow are opened. Air flows through the outlet, and good ventilation can be achieved without increasing the opening/closing angle of the valve, ie, the thickness of the box, or the width of the box.

In addition, since multiple steps are formed on the front side of the upper flange in the thickness direction of the flange, when installing this air damper to the vent of the ventilation wall, it is necessary to By locking the step to the upper edge of the ventilation hole, it is possible to adapt to the thickness of the ventilation wall even though it is a single air damper.

Embodiments Hereinafter, the present invention will be described in detail based on illustrated embodiments.

Figures 1 to 3 show a heat insulating air damper according to an embodiment of the present invention, and reference numeral 1 in the figures indicates a box that constitutes the air damper, and the entire body is made of a heat insulating material such as expanded styrene. A main air outlet 3 is provided along the width direction at the lower part of the front radiation prevention wall 2, and a similar sub-outlet 4 is provided at the upper part, and a lower part of the rear radiation prevention wall 5 is provided. has an air inlet 6. Both radiation prevention walls 2, 5
This suppresses heat radiation between the ventilation layer 17 and the space inside the ventilation wall when this damper is attached to a ventilation hole 19 provided in a ventilation wall 18 (see FIG. 5), which will be described later.

Reference numeral 7 denotes a space chamber provided inside the box body 1 for housing a valve, the lower part of which communicates with the inlet 6 and the main stream outlet 3, and the upper part thereof communicates with the sub-outlet 4 containing the upper air. 8
is the open end of the inlet 6 on the space chamber side.

Reference numerals 9 and 10 are mounting flanges formed overhanging the lower front and upper rear surfaces of the box body 1, and the upper flanges 9 have multiple steps 11 on the front side in the thickness direction of the flanges. The lower flange 10 is formed to have a predetermined thickness so that it does not come into contact with the inner surface of the outer wall when inserted into the ventilation layer through the ventilation hole.

Furthermore, the reference numeral 12 in the figure is a valve, which is swingably suspended from a mounting bar 13 fixed to the ceiling of the space chamber 7, and whose lower end is connected to the opening end 8 of the inlet 6 described above.
It extends to a position that covers the This valve 12 is formed of a lightweight sheet body such as plastic film, and the lower end is heated by negative pressure when the air in the ventilation layer heated by solar heat rises from the bottom to the top. It opens when the air bubbles rise up, while it closes when the air inside the ventilation layer cools and flows from top to bottom.

As shown in FIG. 4, the valve 12 has mounting holes 15 at the top for hooking a plurality of pins 14 protruding from the plate surface of the mounting bar 13, and an opening 1 for ventilation.
6 is formed.

As shown in FIG.
7, and the lower flange 10 from the bottom of the box 1
The part extending to the rear side of the vent hole 19 is fixed to the lower edge 20 of the damper mounting vent 19 provided in the ventilation wall 18, and the predetermined step 11 on the front side of the upper flange 9 is connected to the lower edge 20 of the vent hole 19 provided in the ventilation wall 18. It is fixed to the ventilation wall 18 by being locked to the upper edge 21.

When the air within the ventilation layer is warmed by solar heat during the daytime in winter, an upward air current is generated within the ventilation layer. This rising air current creates a negative pressure in the ventilation layer, and the valve 12 is opened by the air that enters from the inlet. Air flows around the lower end of the valve 12 and smoothly escapes from the main outlet 3 and from the space 7 between the valve 12 and the back radiation prevention wall 5 through the ventilation opening 16 of the valve 12 to the secondary outlet 4.

When the outer wall of the building gets cold, such as at night, the air inside the ventilation layer is also cooled and a downward airflow is generated within the ventilation layer, but the valve 12 does not open toward the rear radiation prevention wall 5, so the air inside the ventilation wall 18 No cold air enters the space.

Effects of the invention As described above, according to the invention, the box body is provided with a main stream outlet and a sub-outlet, and ventilation is provided at a position corresponding to the sub-outlet of the valve suspended in the space inside the box body. When the valve is opened, air flows around the lower end of the valve from the main outlet, and from the space between the valve and the back radiation prevention wall through the ventilation opening of the valve to the secondary outlet. This allows for smooth ventilation without having to widen the depth of the space chamber and ensure a large opening/closing angle of the valve. This increases the thickness of the box body and the amount of ventilation, making it possible to reduce the width of the box body as much as possible.As a result, the degree of freedom in selecting the damper installation location is increased, and installation work is also simplified. This makes it possible to easily provide an insulating air damper that is optimal for the housing system.

Further, according to the present invention, a plurality of steps are provided on the front side of the upper flange in the thickness direction of the flange, and the upper edge of the ventilation opening is locked to the steps selected according to the thickness of the ventilation wall. Therefore, although it is a single type of damper, it can be attached to multiple types of ventilation walls having different thicknesses.

[Brief explanation of the drawing]

FIG. 1 is a front view of an adiabatic air damper according to an embodiment of the present invention, FIG. 2 is a rear view thereof, FIG. 3 is a vertical sectional view thereof, and FIG. 4 is an explanatory diagram of a valve used therein. FIG. 5 is a sectional view showing the state in which it is used. 1...Box body, 2...Front radiation prevention wall, 3...Main stream outlet, 4...Sub-outlet, 5...Back radiation prevention wall, 6...Inlet, 7...Space chamber, 9... Upper flange, 10... Lower flange, 11... Step, 12...
Valve, 16... Ventilation opening, 17... Ventilation layer, 18
...Ventilation wall, 19...Vent.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In an insulating air damper that is attached to a ventilation wall in order to communicate the inner space of the ventilation wall with the ventilation layer formed between the outer wall, etc. and the ventilation wall, It consists of a box body and a one-way valve that is swingably suspended within the box body, and the box body is made of a heat insulating material such as expanded styrene, and air is vented to the lower part of the front radiation prevention wall. A main stream outlet, an air inlet at the bottom of the rear radiation prevention wall, an air chamber inside that communicates with the mainstream outlet and inlet and reaches the upper part of the box body, and an upper part of the front radiation prevention wall. are each provided with a sub-outlet for air that communicates with the space chamber, and the valve is formed of a lightweight sheet such as a plastic film, and the valve is connected to the air inlet from a mounting portion provided on the ceiling of the space chamber. It is suspended so as to cover the opening on the side of the space chamber, and has an opening at the top of its surface that allows air to pass through. Therefore, the opening operation causes air from the inner space of the ventilation wall to flow into the ventilation layer through the inlet, the space chamber, and the main outlet, and through the inlet, the space chamber, the valve opening, and the sub-outlet. A heat insulating air damper is characterized in that it allows air to circulate and closes due to the airflow flowing from top to bottom within the ventilation layer. (2) In the heat insulating air damper according to claim 1 of the utility model registration claim, the box body has a lower flange of a required thickness below the front radiation prevention wall and an upper flange above the rear radiation prevention wall. A plurality of steps are formed on the front side of the upper flange in the thickness direction of the flange, and the part from the bottom of the box to the back of the lower flange is a part of the ventilation wall. It is characterized in that the lower edge of the damper mounting vent formed at a predetermined position is engaged with the lower edge, and a predetermined step on the front surface of the upper flange is engaged with the upper edge of the vent. Insulated air damper.