JPH0328246Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention relates to the improvement of pipe hoods attached to the outer wall side of ventilation ducts of buildings, and improves the performance of heavy rain, snow, bird prevention, and ventilation. The aim is to create a pipe hood with excellent design.

<Prior Art> As shown in FIG. 3, a conventional pipe hood in which a louver 1 and a flange 2 are provided on substantially the same plane is well known.

<Problem that the invention attempts to solve> However, in such a pipe hood,
Regarding the rain and snow carried by the blowing wind, it is assumed that the intrusion reaches up to the inside of the hood 3, and the rain and snow that has penetrated up to the inside of the hood are dispersed for the first time in the louver 1.
Since it is intended to prevent the intrusion from reaching the inside of the duct 6 by allowing the adhesion to flow down, the effect of preventing rain and snow is inevitably unsatisfactory.

In addition, in the conventional pipe hood, a hood 5 having a substantially hemispherical shape and an opening 4 at the bottom is simply attached to a flange 2 with a louver 1, so birds can freely enter the inside of the hood 3. In addition, since the louver 1 becomes a suitable anchorage for birds to nest,
The problem of impossibility of ventilation due to birds nesting inside the hood 3 and hygiene problems have not been solved yet.

In conventional pipe hoods, approximately half of the main part is occupied by the opening, and furthermore,
Since the pipe hood is installed at a relatively high position in the building, the apparent area occupied by the opening is larger, which tends to spoil the design of the building in which the pipe hood is installed.

<Means for Solving the Problems> The present invention has been devised to solve the above-mentioned drawbacks of the conventional pipe hood, and has the following configuration for this purpose.

The pipe hood of the present invention is provided with an insertion part 7 for fitting into a duct 6, a flange 2 at one end that comes into contact with an outer wall surface 8, and has a substantially hemispherical shape with an opening 4 at the bottom. The provided hood 5 is mounted on the flange 2, and a net 9 is attached to the opening 4 of the hood 5 so as to form substantially the same spherical surface as the hood 5.

<Function> In the pipe hood of the present invention, indoor and outdoor ventilation is obtained from the opening 4 through the inside of the hood 3, the inside of the insertion part 7, and the duct 6, and the hood 5 removes rain and snow from above. 6 to prevent intrusion into the interior,
By making the net 9 almost the same hemispherical surface as the hood 5,
Birds nesting inside the hood 3 and the duct 6 and insects are prevented from entering the room through the duct 6, and rain and snow carried by the blowing wind are prevented from being scattered by the mesh 9 on the outside of the hood 5. This is prevented by allowing the adhesion to flow down. In addition, by making the net 9 substantially spherical, the opening area is larger compared to a planar shape, which increases the amount of ventilation, and like the hood 5, the net 9 surface protrudes toward the outside air. This makes it possible to wash well with rain and snow, prevents clogging, and allows the use of materials with a dense mesh.

When a dense mesh is used in the present invention, the opening 4 and the inside of the duct 6 seen through the opening 4 in the conventional pipe hood are covered with substantially the same hemisphere formed by the hood 5 and the mesh 9. This results in a pipe hood that is in harmony with the design of the building.

<Embodiment> An embodiment of the present invention will be described based on FIGS. By single or plural retaining springs 10 provided in the
The flange 2 and the outer wall surface 8 are fixed so as to be in close contact with each other. Further, a hood 5 having a substantially half-shaped opening 4 at the bottom is crowned on the flange 2 surface, and a net 9 forming substantially the same hemisphere as the hood 5 is provided in the opening 4. The mesh of the mesh 9 is preferably dense enough not to impair the insect repellent effect.

Furthermore, in order to replace the fuse when a fire damper is installed, it is possible to do so by making the hood 5 removable. Furthermore, the effect of rain and snow protection can be enhanced.

<Effects of the invention> The pipe hood according to the invention has the above-mentioned configuration, so that rain and snow flying from above can be collected through the hood 5, and rain and snow carried by the blowing wind can also be collected through the opening 4 at the bottom of the hood 5. The installed net 9 allows the rain and snow to scatter and adhere to the ground before it enters the hood 3. Furthermore, by making the net 9 spherical, the area that hits perpendicularly to the flying direction of rain and snow is reduced, and the duct 6
This reduces the rate at which rain and snow scatter inward. In addition, in order to further enhance the effect of rain and snow protection, it is possible to use the same method as in the past, such as installing the louver 1 on the same surface as the flange 2, or it is possible to use a louver 1 on the same surface as the flange 2, or to use a louver with a tight mesh to improve the effect. It is. In addition, the fact that the mesh 9 protrudes toward the outside air in the same way as the hood causes rain and snow to wash away well, reducing clogging.
This ensures stable ventilation.

In addition, since the entire surface of the opening 4 is covered with the net 9, it not only has an insect repellent effect, but also has a spherical surface that is almost the same as the hood 5, so there is no space or locking part that is convenient for birds to nest. This ensures safe and hygienic ventilation at all times.

By making the main part of the pipe hood into a substantially identical hemispherical shape by the hood 5 and the net 9, it has a unique design compared to conventional ones, and when installed in a building, The opening 4 and the inside of the duct 6 are not noticeable, and the aesthetic appearance of the building can be avoided.

In addition, the fact that the net 9 is made spherical increases the opening area compared to when a flat net is used.
It increases breathability and allows the use of densely meshed materials.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the pipe hood of the present invention. Second
The figure is a cross-sectional view of the pipe hood of this invention when it is installed. Third
The figure is a sectional view when a conventional pipe hood is constructed. 1... louver, 2... flange, 3... inside the hood, 4... opening, 5... hood, 6... duct, 7... insertion part, 8... outer wall surface, 9... net, 1
0... Locking spring.

Claims (1)

[Scope of utility model registration request] In a pipe hood that has an insertion part for fitting into a duct and a flange at one end of the insertion part for contacting the outer wall surface, the hood is approximately hemispherical and has an opening at the bottom on the flange surface. A pipe hood, which is fitted with a cap and has a net at its opening, and the surfaces of the hood and the net form substantially the same hemispherical shape.