JPS5938677Y2 - Intake/exhaust sleeve - Google Patents

Description

[Detailed explanation of the idea] This idea was designed to connect heating equipment, air conditioning ventilation fans, etc.

This invention relates to an outdoor pull-out type intake/exhaust sleeve for exhausting contaminated air such as combustion gas or intake of combustion air.

Conventional air intake sleeves, for example, have the possibility of rainwater entering from the open end outdoors, so they are installed at an angle or are provided with a hood-like weather cover or the like at the open end.

This is done for the same purpose with the exhaust sleeve, but in order to install it diagonally, you must either drill the mounting hole diagonally or drill a larger mounting hole than necessary. Therefore, the installation work becomes quite troublesome.

Additionally, when installing weather covers, etc., there are problems such as the structure of the part is bulky and may damage the appearance of the house, and since it is made of steel, it is expensive. be.

This invention aims to solve the above-mentioned conventional problems and is an easy-to-install air intake or The present invention provides an intake/exhaust sleeve for exhaust.

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

Intake sleeve 1 as an application example of the present invention shown in Fig. 1
is for sending combustion air to a heating device (not shown), and its outdoor exposed portion is a cylindrical portion of a bellows structure 2 except for the vicinity of the open end.

The bellows structure 2 is flexible and has enough flexibility to bend downward when the intake sleeve 1 is held horizontally with its heating device connection side supported.

This bending of the cylindrical portion of the bellows structure 2 may be caused by either the load on the distal end side of the cylindrical portion or the own weight of the cylindrical portion itself.

In order to provide the above-mentioned degree of flexibility to the cylindrical portion of the bellows structure 2, there may be cases where the rigidity of parts other than the cylindrical portion is insufficient, but this lack of rigidity can be overcome by inserting a reinforcing sleeve into the portion other than the cylindrical portion. It can be resolved.

Such an intake sleeve 1 can be installed by inserting it from the indoor side into a mounting hole 3 that is horizontally drilled in the outer wall structure W of a house and has a diameter slightly larger than the outer diameter of the intake sleeve 1. .

When the cylindrical part of the bellows structure 2 is exposed to the outdoors through the mounting hole 3, the opening end 1B hangs downward from that part while maintaining the central space as shown in FIG. This makes it almost impossible for an intrusion to occur.

In addition, when it is windy and rainy, the flexibility and pliability of the cylindrical portion (thereby, the opening end 1B of the intake sleeve 1 is directed to the leeward side by the action of the wind, as shown in Figure 3 A2B). ,
Even under such adverse conditions, it is possible to prevent rainwater from entering as much as possible.

Moreover, the above-described intake sleeve 1 can also be obtained by separately forming the cylindrical portion of the bellows structure 2 and connecting them.

Furthermore, regarding the exhaust sleeve, although some consideration must be given to the exhaust heat if it is for a heating device, the method is basically the same as that of the intake sleeve 1 described above (therefore, the present invention is applied). It can be expected to have the same effects and effects as those mentioned above.

Of course, the configuration of the previous example can be applied as is as an exhaust sleeve for an air conditioning ventilation fan (not shown) or the like.

As is clear from the description of the embodiments above, the present invention includes a cylindrical part made of a flexible bellows structure on the base side of the outdoor exposed part that penetrates the wall structure of the house and is exposed to the outdoors, By bending the cylinder, the open end normally opens downward to prevent rainwater from entering, and when there is an outside wind, it swings in response to the outside wind and the open end opens downwind. Wind and rain can be prevented from entering through the open end without providing a special cover or the like.

Moreover, its installation is easy as it only requires keeping the cylindrical part in a straight pipe shape and penetrating it from the indoor side into the wall structure.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an intake sleeve as an application example of the present invention, Fig. 2 is a sectional view showing the intake sleeve in an installed state, and Fig. 3 A and the opening are respectively used for intake against wind and rain. It is an explanatory view showing correspondence of a sleeve. Note that the same reference numerals in the figures indicate the same or equivalent parts. 1... Intake sleeve, 1 person... Outdoor exposed part, 1B... Open end, 2... Bellows structure, 3... Mounting hole, W...Outer wall structure.

Claims (1)

[Scope of utility model registration request] A cylindrical part made of a flexible bellows structure is included on the base side of the outdoor exposed part that penetrates the wall structure of the house and is exposed to the outdoors, and the cylindrical part has a flexible bellows structure. , an intake/exhaust sleeve 7° characterized in that the opening end swings to open toward the leeward depending on the direction of the outside wind.