JPH03129838U

JPH03129838U -

Info

Publication number: JPH03129838U
Application number: JP3825090U
Authority: JP
Priority date: 1990-04-10
Filing date: 1990-04-10
Publication date: 1991-12-26

Description

[Brief explanation of drawings]

第１図は本考案の換気装置の一実施例を示す正
面断面図、第２図は同装置の側断面図、第３図は
同装置において強風が作用したときの状態を示す
正面断面図、第４図は従来の換気孔に取付けられ
た風雨侵入防止構造の一例を示す斜視図、第５図
は従来の換気孔に取付けられた風雨侵入防止構造
の他の例を示す斜視図である。図中、１０は室内、１１は屋外、１２は壁、１
５は換気扇、１６は主排気通路、１７は導風管、
１７ｂは開口部、１８ａは外壁、１８ｂは内壁、
１９は補助排気通路、２０は補助排気孔、２１は
外部開口、２２は開閉弁、２３は排気孔、２４は
下方ストツパ、３０は上方ストツパである。 Fig. 1 is a front sectional view showing an embodiment of the ventilation device of the present invention, Fig. 2 is a side sectional view of the same device, and Fig. 3 is a front sectional view showing the state when strong winds act on the same device. FIG. 4 is a perspective view showing an example of a conventional structure for preventing wind and rain intrusion installed in a ventilation hole, and FIG. 5 is a perspective view showing another example of a conventional structure for preventing wind and rain intrusion installed in a ventilation hole. In the figure, 10 is indoors, 11 is outdoors, 12 is a wall, 1
5 is a ventilation fan, 16 is a main exhaust passage, 17 is an air guide pipe,
17b is an opening, 18a is an outer wall, 18b is an inner wall,
19 is an auxiliary exhaust passage, 20 is an auxiliary exhaust hole, 21 is an external opening, 22 is an on-off valve, 23 is an exhaust hole, 24 is a lower stopper, and 30 is an upper stopper.

Claims

[Scope of Claim for Utility Model Registration] (1) An air guide pipe installed to communicate between the indoor side and the outdoor side of a building, and at least a portion of which is arranged above and below, and the indoor side of this air guide pipe. a ventilation fan disposed near the opening of the air guide pipe; an on-off valve disposed so as to be vertically movable inside a portion disposed above and below the air guide pipe; and an on-off valve that opens when the on-off valve is located at a lower position; It is characterized by comprising: an exhaust hole that is closed when the on-off valve is located above or below; and an auxiliary exhaust hole formed on a side wall of the air guide pipe upstream from a portion where the on-off valve is installed. Ventilation equipment. (2) The on-off valve has a shape in which the upper surface protrudes to disperse the air flow from the ventilation fan to the periphery, the exhaust hole is formed in the periphery, and the air guide pipe has a portion below the on-off valve. a lower stopper that restricts upward movement of the on-off valve and does not block the exhaust hole when the on-off valve is in contact with the exhaust hole; 2. The ventilator according to claim 1, further comprising an upper stopper for closing the ventilator. (3) The air guide pipe has a double structure consisting of an inner wall and an outer wall, and the auxiliary exhaust hole is formed in the inner wall, and the auxiliary exhaust hole is connected to the auxiliary exhaust hole formed between the inner wall and the outer wall. The ventilation system according to claim 1 or 2, which communicates with the outdoors through an exhaust passage and further through an external opening formed in an outer wall.