JPH023062Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is installed individually at each outdoor opening end opening on the outer wall of the air supply/exhaust path of an air conditioning ventilation fan, etc.
The present invention relates to a weather cover that prevents rainwater from entering through an outdoor opening.

Conventionally, for example, a weather cover in the form of a single roof with an open bottom as shown in Fig. 1 has been installed at the outdoor opening end of each ventilation path (exhaust path or air supply path) of an air conditioning fan, etc. that passes through the wall and faces the outdoors. 101 was installed. The weather cover 101 having such a configuration has no problem in terms of its rainproof function against raindrops coming from above or diagonally from the sides, but it does have a problem in preventing raindrops from blowing up from below. Particularly in the case of an air supply path that sucks outside air, there is a problem in that raindrops enter the weather cover 101 along with the flow of air from the lower open portion of the weather cover 101 and enter into the air supply path.

The purpose of this invention is to provide a weather cover that has sufficient rainproof function against raindrops from any direction and when applied to an air supply path, has good external wind resistance, and is easy to install. It is something to do.

Next, the configuration of the present invention will be specifically explained based on an embodiment shown in the drawings.

The weather cover as an example of application of the present invention shown in each figure after Figure 2 is an air cover that penetrates a wall W and protrudes sideways to the outdoors, and is connected to an air supply path and an exhaust air passage for an air-conditioning ventilation fan that simultaneously supplies and exhausts air. A connection port member 3 that connects to the outdoor open end 2 of the duct 1 that forms a substantial outdoor open end of the duct 1, and a cup-shaped rainproof device that accommodates the open end side of the connection port member 3. It is mainly composed of a cap 4. Connection port member 3
is connected in a radial direction to one end side of the connecting cylinder part 5 having a threaded part formed on its inner peripheral surface, which is connected by screw fitting to the threaded part formed on the outer peripheral surface of the outdoor exposed part of the duct 1. It is a cylindrical body with openings at both ends and integrally formed with a rainproof flange 6. rainproof cap 4
is a cup-shaped cylindrical body with one end closed, and the open end side of the body is constructed of a mesh 7 around the entire circumference. The inner diameter of the rainproof cap 4 is larger than the outer diameter of the flange 6 of the connection port member 3, and can cover the outer circumference of the connection port member 3 connected to the duct 1 in a lid-like manner while maintaining a gap. The rainproof cap 4 is supported by two opposing mounting legs 9 that protrude from a fixing plate 8 that is fitted onto the outer periphery of the duct 1 and pressed against the outer surface of the wall W by the end face of the connecting tube 5.
It is carried out by. That is, a flat part 10 with a screw hole is formed at the free end of the mounting leg 9, and a screw 11 is passed through the screw hole of the mounting leg 9 from a screw insertion hole formed on the closed end surface 4A of the rainproof cap 4. By fastening it, the inner surface becomes the connection port member 3.
The rainproof cap 4 is supported in a neutral position where it does not come into contact with the rain cap. The rainproof cap 4 supported by the mounting legs 9 of the fixed plate 8 has the free end of the mesh 7 in contact with the outer surface of the wall W, and the entire flange 6 of the connection port member 3 and one part of the connection cylinder portion 5. The parts are housed in the body part other than the mesh 7. In addition, connection port member 3
The open end on the side of the flange 6 and the closed end surface 4A of the rainproof cap 4 face each other with a sufficient distance,
The open end on the flange 6 side communicates with the outside through a ventilation section formed by the mesh 7 of the rainproof cap 4.

Therefore, the weather cover of this example has a ventilation section formed by the mesh 7 around the entire circumference of the wall W near the outer surface.
In the case of an exhaust path, exhaust air is discharged from here, and in the case of an air supply path, outside air is taken in from here. Raindrops can only enter the weather cover in the ventilation section covered with the mesh 7, but the raindrops hit the mesh 7 and scatter, and rarely pass through the mesh 7 directly. Even if raindrops pass through the mesh 7, they are often taken out of the weather cover from the mesh 7 below, and almost never reach the opening end of the connection port member 3 on the flange 6 side. That is, even if raindrops or splashes pass through the mesh 7 and head toward the opening end on the flange 6 side, their path will be obstructed by the radially extending flange 6 of the connection port member 3. Therefore, since it can perform the same rainproof function as mentioned above even against raindrops that enter through the intake air flow, it can be satisfactorily applied to air supply channels, has good resistance to outside wind intrusion, and is easy to install. It's easy.

As is clear from the above description of the embodiments, the weather cover of the present invention uses a cup-shaped rainproof cap to maintain a space around the outer circumference of the connection port member having the connection tube that connects to the outdoor open end of the ventilation path. It is completely enclosed and has a mesh-structured ventilation area all around the outer surface of the rainproof cap's wall, so even if raindrops enter through the ventilation area of the rainproof cap, they will remain at the bottom. Since the mesh-structured ventilation section does not allow raindrops to freely pass through without colliding with each other, it has a sufficient rainproof function against raindrops from all directions. I can do it. In addition, since the flange is located in the middle of the passage, it has good resistance to external winds.
Furthermore, ease of installation is improved.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a weather cover as a conventional example, FIG. 2 is a longitudinal sectional view showing a weather cover as an application example of the present invention, and FIG. 3 is an exploded perspective view thereof. Note that the same reference numerals in the figures indicate the same or equivalent parts. 1...Duct, 2...Outdoor opening end, 3...Connection port member, 4...Rainproof cap, 5...Connection cylinder part,
6...Flange, 7...Meshyu.

Claims (1)

[Scope of utility model registration request] A weather cover that is installed individually at each outdoor opening end of an air supply and exhaust passage of an air conditioning ventilation fan, etc. that simultaneously supplies and exhausts air, and has a connecting cylinder portion that is connected to each outdoor opening end by screwing. At one end of the connecting cylinder part, there is a connection port member with open ends at both ends that has a flange that extends in the radial direction, and a mounting leg that is pressed and held against the outer wall surface by screwing into the outdoor open end of this connection port member, and that protrudes forward from the wall surface. a fixing plate having a fixing plate, which is attached to the mounting leg of the fixing plate by tightening screws from the outside, surrounds the outer circumference of the opening on the flange side of the connection port member while maintaining a ventilation interval, and the wall body The weather cover is provided with a substantially cup-shaped rainproof cap whose entire periphery forms a mesh-structured ventilation portion communicating with the open end of the connection port member.