JPH0131876Y2 - - 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, at the outdoor opening end facing outdoors through the wall of each ventilation path (indicating an exhaust path or an air supply path) of an air conditioning ventilation fan, etc., there is conventionally a downwardly open piece as shown in Fig. 1 or 2. A weather cover 103 covered with a roof-shaped weather cover 101 or an approximately cup-shaped rainproof cap 102 was attached. Since the weather cover 101 as shown in Fig. 1 has a fixed air supply or exhaust direction, it has the advantage that supply/exhaust short circuits are less likely to occur even if it is attached to the outdoor open end of a simultaneous supply/exhaust type air conditioning ventilation fan. However, there was a drawback in that the rainproof function was poor against raindrops blowing up from below and raindrops entering the air supply. On the other hand, in a weather cover 103 as shown in FIG. 2, the outdoor opening end for supplying or exhausting air is covered with a rainproof cap 102, so that air supply or exhaust is performed from the outer surface of the wall. Although it has a good rainproof function, it has the disadvantage that it can easily cause supply/exhaust short circuits when attached to the outdoor open end of an air conditioning ventilation fan.

The object of the present invention is to provide a weather cover equipped with a rainproof cap that can solve the problem of short circuit between air supply and exhaust.

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 the figures from Figure 3 onwards has an air supply path for an air conditioning ventilation fan, etc. that penetrates the wall W and protrudes sideways to the outdoors for simultaneous air supply and exhaust. 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 housing that accommodates the open end side of the connection port member 3. It is mainly composed of a cap 4. The connection port member 3 is connected to one end side of a connecting cylinder portion 5 having a threaded portion formed on its inner circumferential surface, which is connected by screw fitting to a threaded portion formed on the outer circumferential surface of the outdoor exposed portion of the duct 1. A rainproof flange 6 extending in the radial direction is integrally formed.
It is a cylindrical body with both ends open. Rainproof cap 4 is
It is a cup-shaped cylindrical body with one end closed, and the open end side of its body is made up of a mesh 7 around almost the entire circumference. The inner diameter of the rainproof cap 4 is larger than the outer diameter of the rainproof 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. 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 is pressed against the outer surface of the wall W by the end face of the connecting cylinder section 5. . 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 them together, the rainproof cap 4 is supported in a neutral position where the inner surface does not come into contact with the connection port member 3. 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 rainproof cap 4 is in contact with the entire rainproof flange 6 of the connection port member 3 and the connection cylinder portion 5. A part of the mesh 7 is housed inside the body. Further, the open end of the rainproof flange 6 of the connection port member 3 and the closed end surface 4A of the rainproof cap 4 face each other with a sufficient distance, and the open end on the side of the rainproof flange 6 is connected to the rainproof cap. It communicates with the outside through the ventilation section formed by the mesh 7 of No. 4. The body made of the mesh 7 becomes a substantial outside air intake when provided in the air supply duct 1, and serves as a substantial outside air intake port when installed in the air supply duct 1.
If it is installed, it becomes a substantial exhaust port. In particular, in this example, the body part by mesh 7 is
A circular arc portion spanning approximately 90° is closed as a closing portion 12, and air supply or exhaust from this portion is restricted. Therefore, if the direction of the blocking part 12 is faced to each other when the rainproof cap 4 is installed, the air supply and exhaust air can be separated from each other, and it is possible to prevent an air supply and exhaust short circuit in an air conditioning ventilation fan that performs air supply and exhaust at the same time. can.

As is clear from the above description of the embodiments, the weather cover of the present invention is a weather cover that is individually installed at each outdoor opening end that opens on the outer wall of the air supply and exhaust passage of an air conditioning ventilation fan, etc. that simultaneously supplies and exhausts air. , a connection port member having open ends at both ends having a connection cylinder connected to each outdoor opening end, and surrounding the outer circumference of one opening side of this connection port member with a ventilation interval maintained, and the outer surface of the wall body. and a substantially cup-shaped rainproof cap forming a circumferential ventilation portion communicating with one open end of the connection port member, and the ventilation portion has a partially closed portion. ,
Since the closed parts on the air supply side and the exhaust side are installed facing each other, the air supply and exhaust can be separated, and short circuits in air supply and exhaust can be prevented in air conditioning ventilation fans that supply and exhaust air at the same time. .

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams showing different types of weather covers as conventional examples, FIG. 3 is an exploded perspective view showing a weather cover as an application example of the present invention, and FIG. 4 is an explanatory view showing a weather cover as an application example of the present invention. It is an explanatory view showing the function of the weather cover. 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...Rainproof flange, 7...Mesh, 12...
Occlusion.

Claims (1)

[Scope of utility model registration request] A weather cover provided individually at each outdoor opening end of an air supply/exhaust passage of an air conditioning ventilation fan, etc. that simultaneously supplies and exhausts air, the weather cover having openings at both ends having a connecting tube connected to each of the outdoor opening ends. A ventilation section that surrounds the connection port member and the outer circumference of one opening side of the connection port member while maintaining a ventilation interval, and that communicates with the one open end of the connection port member between the outer surface of the wall body and the outer surface of the wall body. and a substantially cup-shaped rainproof cap formed in a circumferential shape, and the ventilation section is provided with a closed part in a part thereof, and the closed part on the air supply side and the exhaust side are installed facing each other. Weather cover.