JPS60191142A - Soundproof structure of ventilating fan - Google Patents

Abstract

PURPOSE:To enable to prevent the interior sounds from leaking outdoors together with exhaust by a structure wherein a sound-damping cover is concavely provided on the exhaust port of a ventilating fan and baffle plates are detachably attached in the concavity. CONSTITUTION:The exhaust port 2 of a ventilating fan 1 is freely openably covered by a sound-damping cover 3, which is concavely provided in the opposite side with respect to the exhaust port 2. Further, baffle plates 6 are detachably mounted in a concavity 4 leading from the exhaust port 2 to a discharge port 5. When exhaustion is intended, a fan 8 is put into operation under the state that the exhaust port 2 is covered by closing the sound-damping cover 3. At this time, the sounds of the fan 8 and of a motor and the interior noises are damped down by colliding with the baffle plates 6 while passing through the concavity 4 and passing through holes 14, resulting in discharging only exhaust outdoors from the discharge port 5.

Description

[Detailed Description of the Invention] Technique 11j Field 1 The present invention relates to a soundproof structure for a ventilation fan that prevents indoor sounds from going outside when air is lost from a ventilation Ail. Noise from karaoke, etc., or various noises at home can be heard 2M outside, causing so-called noise pollution. For this reason, in the past, soundproofing work was done on walls, ceilings, floors, etc., but even if these soundproofing measures were taken, indoor sounds leaked out from ventilation fans along with air. There was a problem.

[Objective of the Invention 1 The present invention has been invented in view of the above points, and its purpose is to prevent indoor I'f from being discharged outdoors with loss of air by 11-. , and ventilation 1i, I 1IJ that allows easy cleaning of baffle plates for prevention 1] 1'.
J iT 4Nj structure is provided.

The soundproof structure of the ventilation fan of the present invention is as follows:
” 2 with a sound deadening cover 3 that can be opened and closed freely, and the sound deadening cover 3 is closed.
is recessed toward the side opposite to the exhaust port 2, and when the exhaust CI 2 is covered with the sound deadening cover 3, these four parts 4 are communicated with the antistatic 1"2, and an exhaust 1"5 is provided on the sound deadening cover 3. 4 and the outdoors are communicated with the exhaust 1 knee 15, and the evil 1ffi & 6 is freely installed in the four parts 4 extending from the exhaust port 2 to the exhaust port 5, and has such a configuration. Accordingly, the above-mentioned object of the present invention has been achieved.

Hereinafter, the present invention will be explained in detail with reference to Examples. 1 in the figure is conversion 'A'
The frame 7 of the ventilation fan 1 is provided with a 7-ring 8, and this frame 7 is fitted into the penetration 1]10 of the outer wall 9 of the building. 1 ki mouth 2, and 1 ki inkstone]] 2 has 11 louver pieces for passing. On one side of the outdoor side of the frame '7, there is a pivot 12 and il'l 15 cover: ( It is pivotally supported on the negative side of the cover, so that when the inside of the sound deadening cover is turned on, it covers the exhaust air 11 of the ventilation fan 1.The inside of the sound deadening cover is recessed toward the opposite side of the ventilation fan 1. (in other words, it is recessed toward the outdoors), and these four parts 4 are equipped with a sound deadening cover 3 to
When it is covered, a part of the four parts 4 communicates with the exhaust air 1''2. In addition, 411 is attached to the lower outer surface of the sound deadening cover 3
An outlet 5 is provided, which communicates the recess 4 with the outdoors.

Now close the sound deadening cover 3 and close the sound deadening cover 3 to the exhaust port 2.
When the air bleed port 2 and a part of the fourth part 4 are made to communicate with each other, an exhaust path is formed between the air 1-12 and the first part 1; 4 dorsal space [
Take out the baffle plate 6 from 21, fit it freely, and remove it.
That's it. When removing the baffle plate 6, for example, as in the embodiment shown in FIG.
is provided, and the rail 13 can be freely put in and taken out.
This is what we support. ! It! A perforated metal plate such as a magic plate 6 belly plate is used, and the diameter of the hole 14 of each perforated metal plate is different. For example, the diameter of the hole 14 is 151 cocoon, 10 + n + o, 12 ma in order from -I.
If it is different, such as n, it will be zero. Note that the lowest baffle plate 6 is mounted on the four-part 4 side of the discharge 1''5. Then, close the sound deadening cover 3 to exhaust the air] 7.
Turn T-ton 8 to exhaust the air, but at the second time 7-8
Indoor noise as well as the sound of the engine and motor collides with the baffle plate 6 as it passes through the interior of the section 4, passes through the hole 14 and is muffled, and only the exhaust gas is discharged outdoors from the exit 5 of the door 1. . By the way, oil and dust contained in the exhaust gas accumulate on the baffle plate 6, which is +3 (= 1) inside the four parts 4. When cleaning the baffle plate 6, open the sound deadening cover 3 and Remove the baffle &6 from the back opening of the baffle plate 6 to clean the baffle plate 6. In the figure, reference numeral 15 is a lock handle, and when the sound deadening cover 3 is closed, the lock handle 15 is removed.
Operate to lock the locking tool 1G of the lock handle 15 in the locking hole 17 provided in the frame 7. 7) When opening the 7-tone cover 3, operate the lock handle 15, remove the locking tool 16 from the locking hole 17, and open the sound-muffling cover 3. It is.

[Effects of the Invention] As described above, the present invention has a structure in which the ventilation fan's exhaust air ``1'' is recessed in a sound-deadening cover facing the opposite side from the exhaust port, and these four parts are covered with the sound-deadening cover. At the same time, the ventilation fan is connected to the exhaust port, and an exhaust port is provided in the sound deadening cover to communicate the four parts with the outdoors through the exhaust port. Indoor noise tries to escape outdoors with the exhaust air, but when it passes through the sound-absorbing cover, the noise is suppressed by the belly plate, and indoor noise does not leak outdoors. In addition, the sound deadening cover can be opened and closed freely and can be placed inside the recess (=I can! Even if the baffle plate becomes dirty with oil or dust, it can be easily removed and cleaned.

Figure 1 is a cross-sectional view of one embodiment of the present invention, Figure 2 is a perspective view of the same 1-1 block 011, No. 1;
Remove the baffle plate on the t'1 cover (this is a perspective view of the broken state, 1 is ventilation 1.i?+, 2 is viscosity 11.3?l
'f I:' (cover, 4 is the recess, 5 is the first appearance 11.6 is the baffle plate.

Agent Patent Attorney (i’LIJ) Figure 7 1 Figure 2 Figure 3

Claims (1)

[Claims] (1) The exhaust port of the ventilation fan is covered with a sound deadening cover that can be opened and closed freely, the sound deadening cover is recessed toward the side opposite to the exhaust port, and these four parts are connected to the bleed air when the exhaust port is covered with the sound deadening cover. Asaide 1] is installed on the sound deadening cover to communicate between the fourth part and the outdoors at 71 and 11, and from p1ki1-1 to #+7
1i A soundproof structure for ventilation with a baffle board that can be freely removed inside the gate leading to 11.