JPH0325234A - Ventilation device for ventilation fan - Google Patents

Abstract

PURPOSE:To prevent rain water from entering at a front surface of a hood from a lower direction by a method wherein a louver is placed between the hood and an opening of a ventilation cylinder, the hood is formed into a polygonal shape having a plurality of slant surfaces and at the same time a cover circumscribing the hood is placed at the front surface of the hood with a predetermined spacing being set thereagainst. CONSTITUTION:A hood 12 is fixed to one end of an aeration cylinder 10, projects outwardly and is formed into a polygonal shape having a plurality of slant surfaces. A louver 13 is arranged between the hood and an opening 11 of the ventilation cylinder 10. The louver 13 is fixed by screws 15 of which upper ends are held by a spring plate 14 and the cylinder 10. A cover 20 is arranged to circumscribe the hood 12 with a predetermined spacing being held to the hood 12 and its both ends are fixed to the end side wall of the cylinder 10. with such an arrangement, rain water sound dropped onto the hood 12 is shielded by the polygonal shape and in turn the rain water is prevented from entering the hood 12 from its front and lower direction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ventilator for ventilation that is used by being attached to an outer wall or the like.

[Conventional technology]

Figures 5 and 6 are for example Utility Model Application No. 56-130631.
It is a sectional view showing a conventional ventilation aerator shown in the publication, in which (1) is a wall, (21 is a duct provided in this wall, and (31 is one end fitted into this duct). At the same time, it is a ventilation cylinder provided in the wall (1), and the other end protrudes from the wall (1).(4) is a hood fixed to the other end of this ventilation cylinder, and the upper part is shaped like a hemisphere. The shape bulges outward, and the lower part is cut out in an arc shape to form an air intake part (51). (6) is the lower end of this air intake part, (7) is the hood (4). ) and the opening of the ventilation pipe (3), (8) is a puddle. Conventional ventilation aerators are horizontally controlled as described above, and the ventilation pipe L
By fitting l+ into the duct (2), the hood (4
) is attached to the wall (1) so as to protrude from the outside, and the duct (
Indoor air is taken in or exhausted by a blower (not shown) provided at the tip of the 2L.

[Problem to be solved by the invention]

In the conventional ventilation aerator as described above, the hood (4) prevents rainwater from entering the duct (2), but it prevents rainwater from spraying from the front and bottom of the hood (4). There was a problem with rainwater entering the duct (2) from the air intake part (C5). This invention was made to solve the problem,
The object of the present invention is to obtain a ventilator for ventilation that prevents rainwater from entering from the front and bottom of the hood.

[Means to solve the problem]

The ventilation aerator according to the present invention includes: a ventilation cylinder having an opening attached to a wall; a hood fixed to one end of the ventilation cylinder and projecting outward with an inclination; A shutter is provided between the opening of the ventilation cylinder, the hood is formed into a polygonal shape having a plurality of sloped surfaces, and a cover is provided on the front surface of the hood to go around the hood at a predetermined interval. be. Additionally, a drainer is provided at the lower end of the shutter that protrudes toward the hood, and a wall drainer is provided with one end overlapping the drainer and facing the wall surface. Additionally, a fire damper is installed inside the ventilation cylinder. [Function] In this invention, the hood is shaped like a polygon with a plurality of sloped surfaces, and a cover is provided that goes around the hood at a predetermined interval in front of the hood, thereby reducing the sound of rainwater falling from above. The sound is reduced on the hood, and
The cover prevents rainwater from entering from the front and from below.

Also, by providing a drainer and a wall drainer, rainwater running down the surface of the hood flows outward.

In addition, a fire damper is installed inside the vent pipe to prevent fire from occurring inside the vent pipe. [Example] Figures 1 to 3 are diagrams showing an example of the present invention.
In the figure, (1) and (2) show the same or equivalent parts as the above conventional example, and the opening (1) is attached to the wall (1).
1), and (12) is a hood fixed to one end of the vent cylinder and protruding outward, and is shaped like a polygon with a plurality of inclined surfaces. (13) is an armor door installed between this hood and the opening (1l) of the ventilation pipe, the upper end of which is supported by a spring plate (l4) and the ventilation pipe, and is fixed with a screw (l5). ing. (16) is a drainer, and the lower end of the above-mentioned shutter (l3) is the above-mentioned hood (12).
) and its tip is bent downward. <171 is a wall drainer with one end overlapping this drainer and secured with a screw (l5), and the other end extending downward facing the wall (1) surface. (l8) is the mounting hole provided on this wall drainer, (l9) is the fixing metal fitting, (20)
is a cover, which is provided so as to go around the hood (l2) at a predetermined distance from the hood (12), and is connected to the ventilation cylinder {
Both ends are fixed to the end measuring wall of 10}.

In the ventilation aerator constructed horizontally as described above, the duct (2) provided in the wall (1) as in the conventional case is connected to the ventilation pipe Q.
By being fixed inside the OI with the fixing metal fittings (19), the main body is installed so as to protrude to the outside of the room, and the above-mentioned duct (
2) A blower (not shown) provided at the other end takes in or exhausts indoor or outdoor air.In this way, the hood (l2) is formed into a polygonal shape with an inclination, and the hood ( By providing the force bar (20} that goes around the hood (12) at a predetermined interval on the front surface of the hood (12), the sound of rainwater falling on the hood (12) is insulated by the polygonal shape. ) Rainwater from the front and below is prevented from entering by the cover (20).Furthermore, the drainer (l6) and wall drainer (l7)
), the drainage performance from the hood (l2) is improved, and water flows downward without forming a puddle inside the hood (l2).

In addition, FIG. 4 shows another embodiment of the present invention, in which a fire damper (22) having an outer frame (21) that can be fitted with an attachment type is provided inside the ventilation cylinder, so that it can be installed easily. The spread of fire can be prevented.

〔Effect of the invention〕

Since this invention is elliptical as described above, it produces the effects described below.

The ventilation aerator according to claim (1) comprises: a ventilator having an opening attached to a wall; a hood fixed to one end of the ventilator and projecting outward with an inclination; A shutter is provided between the hood and the opening of the ventilation pipe, the hood is shaped like a polygon having a plurality of inclined surfaces, and a cover is provided around the hood at a predetermined interval in front of the hood. By providing this cover, the cover prevents rainwater from entering from the front and bottom of the hood, preventing rainwater from entering the hood. In the ventilation aerator of the claim (self), a drainer is provided at the lower end of the shutter that projects toward the hood, and
By providing a wall drainer with one end polymerized and facing the wall surface, drainage performance is improved without creating a puddle inside the hood.

In the ventilation aerator according to claim (3), by providing a fire prevention damper in the ventilation pipe, the spread of fire can be easily prevented.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing one embodiment of the invention, FIG. 2 is a front sectional view, FIG. 3 is a longitudinal sectional view, and FIG. 4 is a longitudinal sectional view showing another embodiment of the invention. FIG. 5 is a cross-sectional view of a conventional ventilation aerator, and FIG. 6 is a front view of the same conventional ventilation aerator. It is. In addition, the same reference numerals in each figure indicate the same or equivalent parts.
1) is a wall, a vent is a ventilator, <11) is an opening, (12) is a hood, (l3) is a shutter, (l6) is a drainer, (l7)
) is a wall drainer, (20) is a cover, and (22) is a fire damper.

Claims (3)

[Claims] (1) A ventilation cylinder having an opening attached to a wall, a hood fixed to one end of the ventilation cylinder and projecting outward with an inclination, and a space between the hood and the opening of the ventilation cylinder. A ventilator for ventilation, characterized in that the hood is formed in a polygonal shape having a plurality of inclined surfaces, and a cover is provided in front of the hood to go around the hood at a predetermined interval. . (2) A drainer projecting toward the hood is provided at the lower end of the shutter, and a wall drainer is provided with one end overlapping the drainer and facing the wall surface. Ventilation aerator as described. (3) The ventilator for ventilation according to claim 1, characterized in that a fireproof damper is provided in the ventilation cylinder.