JPH0720495Y2 - Ventilation ventilator - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a ventilation ventilation passage that is used by being attached to an outer wall or the like.

[Conventional technology]

5 and 6 are cross-sectional views showing a conventional ventilation fan disclosed in, for example, Japanese Utility Model Laid-Open No. 56-130631. In the figure, 1 is a wall, 2 is a duct provided in the wall 1, and 3 is a through-cylinder attached to the duct 2 so that one end is fitted and the other end projects from the wall 1. 4 is this cylinder 3
A hood fixed to the outdoor side end of the bulge, the upper part of which is bulged outward in a hemispherical shape, and the lower part of which is cut out in an arc shape so that the air intake part 5
Is formed. 6 is a lower end portion of the air intake portion 5, 7 is an armored door provided between the hood 4 and the opening of the through cylinder 3, 8 is a puddle, and 9 is installed inside the duct fitting side of the through cylinder 3. It is a fire-proof damper that is kept open with a thermal fuse.

The conventional ventilation aerator is configured as described above, and the ventilation cylinder 3
Is fitted to the duct 2 so that the hood 4 projects and is attached to the outside of the wall 1, that is, the outdoor side, and the air blower (not shown) provided at the tip of the duct 2 exhausts indoor air or exhausts outside air. Intake air into the room.

[Problems to be solved by the device]

In the above conventional ventilation aerator, the hood 4 prevents the rainwater from entering the duct 2.
The rainwater will infiltrate into the duct 2 from the air intake part 5 against the spraying of rainwater from the front and from the lower side, and even if it is desired to attach a insect net later, it cannot be easily attached, and a fire damper 9 is provided. However, there was a problem to be solved that the thermal fuse could not be replaced without removing the entire fuse.

This invention was made in order to solve the problem,
It is an object of the present invention to obtain a ventilation ventilator that can easily attach rain screens and replace the temperature fuses of fire dampers even after the ventilation ventilator is installed and that can prevent rainwater from entering.

[Means for Solving the Problems]

For this reason, in the present invention, a through-cylinder mounted on a wall and having an opening, and a hood provided on the upper side of the opening, the width being larger than the size of the opening and protruding from the outdoor side of the through-cylinder. A cylindrical door that covers the outside of the opening and is removable from the outside of the opening; With a cover.

Further, on the lower side of the opening, a drainer protruding toward the cover is provided with a size smaller than the protruding size of the hood with respect to the cover.

[Action]

In this device, wind and rain from above and from the sides are blocked by the hood and the cover and do not enter the opening. In addition, since a gap is formed between the hood and the cover, it is possible for wind and rain that hits the wall surface and blows into the cover from below the cover to pass upward through this gap. Therefore, all of the wind and rain that has penetrated into the cover loses its place of departure, and the penetration of wind and rain is greatly reduced compared to the conventional one in which all of the rain and rain penetrated into the opening. Moreover, since the cover has a tubular shape, the cover itself does not prevent the wind and rain from passing along the inner wall surface of the cover, and allows the wind and rain to pass smoothly.

Further, since the armor door can be attached and detached from the outside of the room, even after the ventilation fan is installed, the insect net can be installed afterwards by removing the armor door from the outside of the room.

Further, in the case where a member protruding toward the cover with a size smaller than the protruding size of the hood with respect to the cover is provided on the lower side of the opening, wind and rain trying to enter the inside of the cover from below the cover is liable to the protruding member. It becomes difficult to enter the cover directly because it is blocked, and it becomes difficult for wind and rain to enter the opening.Moreover, since the protruding part protrudes toward the cover side, the rising wind and rain is directed to the inner wall surface of the cover and further to the opening. It becomes easier to prevent the entry of wind and rain.

〔Example〕

1 to 3 show an embodiment of the present invention. In these figures, 1 and 2 indicate the same or corresponding portions as the above-mentioned conventional example. Reference numeral 10 is a through cylinder having an opening 11 attached to the wall 1, and 12 is a hood fixed to one end (outdoor end) of the through cylinder 10, which projects as a polygonal eave having a plurality of inclined surfaces. Reference numeral 13 denotes a armored door provided between the hood 12 and the opening 11 of the through cylinder 10, the upper end of which is sandwiched between the spring plate 14 and the end of the through cylinder 10, and the lower end of which is fixed by a screw 15. Reference numeral 16 denotes a drainer, which is configured such that the lower end portion of the armoring door 13 projects toward the hood 12 side, and the projecting end is bent downward. 17
Is a wall drainer whose one end is superposed on this drainer 16 and which is fixed by a screw 15, and the other end is extended downwards facing the wall 1 surface. Is also a member protruding toward the cover 20 side. The screw 15 that fastens the armored door 13 and the wall drainer 17 together can be tightened or loosened by an operation from the outside. Reference numeral 18 is a mounting hole provided in the wall drainer 17, and 19 is a fixing metal fitting. Reference numeral 20 is a cover, which opens the hood 12 through the hood 12 in front of the hood 12.
It is provided so as to circulate around 11, and both ends are fixed to the side wall of the end portion of the through cylinder 10. Reference numeral 21 denotes an insect net, which is attached by mounting the armoring door 13 between the armoring door 13 and the end of the opening 11 of the through cylinder.

In the ventilation aerator constructed as described above, the main body projects to the outside by fixing the ventilation cylinder 10 in the duct 2 provided in the wall 1 by the fixing metal fitting 19 as in the conventional example. Attached in a state where the air is blown out from the room by a blower (not shown) provided at the other end of the duct 2.
Alternatively, outdoor air can be taken into the room.

Furthermore, by providing a drainer 16 and a wall drainer 17,
The drainage from the hood 12 is improved, and the hood 12 can be made to flow downward without forming a puddle.

Incidentally, FIG. 4 shows another embodiment of the present invention.
An outer frame that can be fitted inside the through cylinder 10 by an attachment type
A fireproof damper 23 having 22 is provided.
In any of the embodiments, the insect net 21 can be attached by the detaching operation of the armor door 13 from the open portion on the lower side of the cover 20, and it can be performed from the outdoor side without any difficulty even after the main body is attached. Also, as in the embodiment shown in FIG.
In the case of the one provided with 23, the temperature fuse can be replaced easily from the outside of the room with the attached state by removing the armor door 13, and the maintenance becomes easy.

[Effect of device]

As described above, according to the present invention, as apparent from the embodiments,
In particular, since there is a gap between the hood and the cover, wind and rain that hits the wall surface and blows into the cover from below the cover can be blown upward through this gap as an escape route. It is possible to significantly reduce the intrusion of wind and rain into the cover as compared with the conventional one in which all of the wind and rain have lost their place of departure and infiltrated into the opening. Moreover, since the cover is tubular, the cover itself does not prevent the wind and rain from passing along the inner wall surface of the cover, and the wind and rain can pass smoothly.

Furthermore, since the armor door can be attached and detached from the outside of the room, even after installing the ventilator for ventilation, you can install the insect screen later by removing the armor door from the outside of the room, and the temperature fuse of the fire damper. It also has the effect that it can be replaced.

In addition, in the case where a drainer protruding toward the cover side with a size smaller than the protruding size of the hood to the cover is provided on the lower side of the opening, wind and rain trying to invade into the cover from below the cover will be transmitted to the protruding member. It becomes difficult to enter the cover directly because it is blocked, and it becomes difficult for wind and rain to enter the opening.Moreover, since the protruding part protrudes toward the cover side, the rising wind and rain is directed to the inner wall surface of the cover and further to the opening. It has the effect of making it easy to prevent the entry of wind and rain.

[Brief description of drawings]

FIG. 1 is a perspective view of a ventilation fan according to an embodiment of the present invention, FIG. 2 is a front sectional view of the same, FIG. 3 is a vertical sectional view of the same, and FIG. 4 is a vertical sectional view of another embodiment. FIG. 5 is a sectional view showing a conventional ventilation fan, and FIG. 6 is a front view showing the same ventilation fan. In the figure, 1 is a wall, 10 is a through cylinder, 11 is an opening, 12 is a hood, 13 is a round door, 14 is a spring plate, 15 is a screw, 20 is a cover, 21 is an insect net, and 23 is a fire damper. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (2)

[Scope of utility model registration request] 1. A through-cylinder (10) attached to a wall (1) and having an opening (11), and a width protruding from the outside of the through-cylinder (10) and larger than the size of the opening (11). The hood (12) provided on the upper side of the opening (11) and the armor door that covers the outdoor side of the opening (11) and is removable from the outdoor side of the opening (11), A ventilation air passage provided with a cylindrical cover (20) which is provided outside the hood (12) at a predetermined interval with respect to the hood (12) and has a vertical opening. 2. A drainer (16) or (17) projecting toward the cover (20) with a size smaller than the projecting size of the hood (12) with respect to the cover (20) is provided below the opening (11). The ventilator for ventilation according to claim 1, wherein