JPH0239150Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a noise-reducing ventilation casing that is attached to the outdoor part of a ventilation opening that ventilates the interior and exterior of a building to achieve a noise-reducing effect.

Ventilation vents installed in general houses, etc. are in communication with the outdoors through the ventilation path, making it easy for outside noise to enter directly.Therefore, there are some that adopt a sound-absorbing structure for the ventilation path inside the wall. but,
The disadvantage is that it has a complicated structure and requires a lot of effort to install it inside the wall. On the other hand, in order to eliminate the above-mentioned drawbacks, it has been considered to install it outdoors, but in the case of this outdoor type silencer,
Forming each of the vents in the ventilation path involves machining work inside the cavity, and manufacturing still requires a lot of effort. Moreover,
Even if manufacturing could be simplified, since the device is to be installed outdoors, a good appearance is naturally required so that the fixing screws and the like are not exposed to the outside.

The present invention was developed in view of the above points, and it is installed outdoors instead of inside a wall, which would have a complicated structure, and the main body of the device is constructed to be assembled by combining multiple members, so that the casing can be assembled. The purpose of this invention is to propose a noise-reducing ventilation casing that can be easily carried out, and also has a good appearance in which fixing screws and the like are not exposed to the outside because it is installed outdoors.

Therefore, the present invention is a noise-reducing ventilation casing that is attached to the outdoor part of a ventilation opening for ventilation between indoors and outdoors, and consists of the following requirements: a main body with a U-shaped cross section, side plates attached to both sides of the main body, A back plate having an indoor ventilation hole attached to the back side is each made of an extruded material, and the main body and the back plate are continuous in the horizontal and longitudinal directions, and the side plate is made of an extruded material that is continuous in the vertical direction. Inside the outdoor side of the main body, there are locking grooves that are continuous in the horizontal and longitudinal direction at the upper and lower parts, the upper locking groove opens downward, and the lower locking groove opens upward. An opening edge piece projecting inward is provided on the indoor side of the housing, and an insertion piece having a hook-shaped cross section that is bent toward the indoor side is vertically provided on the outdoor side of the side plate, corresponding to the locking groove. At the same time, a fastening piece is provided on the indoor side that projects inward, and the insertion piece of the side plate is inserted into the end of the locking groove of the main body to close the locking groove. By caulking the inside of the main body from the indoor side, and fixing the opening edge piece of the main body, the fastening pieces of the side plate, and the back plate from the indoor side with fastening tools, any ventilation path can be created inside the main body. The formed casing is assembled and configured.

An embodiment of the present invention shown in the drawings will be described in detail below. Figure 1 is a plan view of the silencing ventilation housing, Figure 2 is a sectional view taken along line A-A in Figure 1, Figure 3 is an exploded perspective view of the housing, and Figure 4 is an enlarged view of Figure 1 taken along line B-B. Cross section, 5th
The figure is a sectional view of the installed state.

In each of the above figures, the silencing ventilation casing of this embodiment is attached to the outdoor part of the ventilation opening 20 for ventilation between indoors and outdoors, and the main body 1 has a U-shaped cross section.
, side plates 2, 2 attached to both sides, and a back plate 3 attached to the back of the main body 1 are assembled to form an arbitrary ventilation path 10 inside.

The main body 1 has a U-shaped cross section with openings on both sides and the back, and vertically opposing locking grooves 4, 4 are provided on the interior of the outdoor side, and the end edge of the indoor side is provided with locking grooves 4, 4 facing each other. Opening edge pieces 7, 7 are provided which face each other vertically. That is, the above-described upper locking groove 4 opens downward, the lower locking groove 4 opens upward, and the opening edge pieces 7, 7 mutually project inward. An outdoor ventilation port 12 consisting of a plurality of openings is formed on one side of the lower surface of the main body 1.

The side plates 2, 2 are plate bodies having a shape that approximately matches the shape of the side opening of the main body 1, and have insertion pieces 5 protruding from the outdoor side corresponding to the locking grooves 4, 4, and the indoor side. Attaching pieces 6 are provided corresponding to both ends of the back plate 3. This side plate 2, 2
As shown in the figure, the insertion pieces 5 are inserted into the locking grooves 4, 4, and brought into contact with both side surfaces of the main body 1.
Therefore, when the locking grooves 4, 4 formed by inserting the insertion pieces 5 into the grooves are caulked so as to be crimped, the fourth
As shown in the figure, the insertion pieces 5 are clamped and locked in the locking grooves 4, 4, and the side plates 2, 2 are attached and fixed to the main body 1. In addition, by forming the hook portion 5a at the tip of the insertion piece 5, the hook portion 5a and the locking groove 4 are locked, so that the side plate 2 is fixed even more firmly. Since the caulking process described above can be performed from the rear opening of the main body 1, it can be easily performed even when the work is performed inside the housing.

The back plate 3 is made of a plate having a shape that approximately matches the shape of the back opening of the main body 1, and has an indoor ventilation port 11 bored in advance at an arbitrary location.
Screw holes 8a and 8b into which screws 9 are screwed are formed at locations corresponding to the fastening pieces 6 and at locations corresponding to the opening edge pieces 7 and 7 of the main body 1, respectively. This back plate 3
and each screw hole 8.
The back plate 3 is attached to the back of the main body 1 by screwing screws 9a and 9b through a and 8b. In addition to the above-mentioned screws 9a and 9b, screws, rivets, etc. can be freely used as fasteners. In addition, these fasteners 9
When the casing is attached to an outdoor wall, it is hidden between the wall and the casing is never exposed to the outside. In addition, by forming bent parts 3a, 3a bent at the back at the upper and lower ends of the back plate 3, when the case is mounted on an outdoor wall, the screws 9 on the back are fixed.
A, 9b can be prevented from coming into contact with the wall surface.

By attaching the side plates 2, 2 and the back plate 3 to the main body 1, a casing having an arbitrary ventilation passage 10 formed therein is assembled.

In the embodiment, a partition wall 13 is provided on the inner surface of the back plate 3 in the lateral direction to separate the ventilation passages 10 into upper and lower parts, and a folded opening 13a is provided at the end of the partition wall 13. In particular, the ventilation channel 10 is formed from two continuous layers: an upper chamber and a lower chamber. By forming the ventilation path 10 in two layers in this way, indoor air enters the upper ventilation path 10 from the indoor ventilation path 11, flows to the longitudinal end, and turns around, as shown in FIG. Mouth 13
The water changes direction at a point a, enters the lower ventilation passage 10, flows further in the longitudinal direction, and flows out through the outdoor ventilation opening 12. By making the ventilation path 10 have a two-layer reciprocating structure in this manner, outdoor noise that has entered the housing is also diffused while reciprocating through the ventilation path 10, making it possible to further enhance the noise reduction effect. Motomo ventilation path 1
0 may be formed in a single layer, and in this case, the indoor vent 11 and the outdoor vent 12 are formed on opposite sides in the longitudinal direction of the housing. Moreover, the outdoor ventilation port 12 may be formed by providing an arbitrary cover or the like on one side plate 2 without providing it on the main body 1.

Furthermore, in the embodiment, a sound deadening material 14 made of urethane, foam, etc. is attached to the entire inner peripheral surface of the upper chamber of the ventilation passage 10 to absorb outdoor noise and further enhance the sound deadening effect. It's like this. Moreover, a sound deadening material can also be provided in the lower chamber.

The main body 1, side plate 2, and back plate 3 described above are formed by extrusion molding of aluminum, aluminum alloy, or the like. Therefore, the above-mentioned main body 1 and its locking groove 4 are formed continuously in the horizontal and longitudinal direction, the side plate 2 and its insertion piece 5 are formed continuously in the vertical direction, and the back plate 3 is formed similarly to the main body 1. It is formed continuously in the horizontal and longitudinal direction. Since each member is continuous in the longitudinal direction, the size of the casing can be arbitrarily determined by cutting each member to an appropriate length. By forming the mold material, manufacturing can be further simplified. In this case, the side plate 2 may be constructed of two pieces by cutting out the middle part without providing the fastening piece 6 continuously in the longitudinal direction. The middle can be removed.

A cylindrical insertion pipe 15 is provided protruding from the above-mentioned indoor ventilation opening 11, and is inserted into the ventilation opening 20 formed through the wall as shown in the usage state diagram in FIG. It is set as. With this insertion tube 15,
The connection between the casing and the ventilation port 20 is made closer and stronger. A sound deadening material 14 is also attached to the inner peripheral surface of this insertion pipe 15, and a ring-shaped airtight material 16 is fitted to the outer peripheral surface to ensure airtightness when fitting and installing it into the ventilation opening 20. It is maintained and practiced.

As shown in FIGS. 3 and 5, a concave groove 13b is provided at the tip of the partition wall 13, and a packing 13c is provided in this groove so that the partition wall 13 and the inner wall of the main body 1 can be connected airtightly. It is set as. Further, a mounting piece 17 is provided protruding from the side end of the back plate 3, so that the assembled case can be firmly attached to the outdoor side wall surface. An opening/closing machine 21 is installed on the indoor side of the ventilation port 20 for opening and closing the ventilation port.

As described above, the noise-reducing ventilation casing of the present invention is configured to be installed in the outdoor part of a building, and has a sufficient sound-reducing effect. In addition, since each of these parts is formed with a caulking part and a screw part made of extruded material, assembly and production of the casing can be made extremely simple.

Moreover, the main body and the side plate are assembled by inserting the insertion piece into the locking groove and caulking the locking groove from the inside, and the main body, side plate, and back plate are screwed together from the inside. Since this is done from the indoor side, the caulking portions, screw fixing portions, etc. are not exposed to the outside at all, and it is possible to maintain a good appearance as a case to be installed outdoors.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the casing of the present invention, Fig. 2 is a sectional view taken along line AA in Fig. 1, Fig. 3 is an exploded perspective view of the casing, and Fig. 4 is an enlarged sectional view taken along BB in Fig. 1. FIG. 5 is a sectional view of the attached state. 1...Main body, 2...Side plate, 3...Rear plate, 4
...Latching groove, 5...Insertion piece, 6...Fixing piece, 7...
...Opening edge piece, 8...screw hole, 9...screw, 1
0...Vent passage, 11, 12...Vent hole, 13...
Bulkhead, 14... Sound deadening material.

Claims (1)

[Scope of claim for utility model registration] A noise-reducing ventilation casing that meets the following requirements and is installed in the outdoor part of a ventilation opening that provides ventilation between indoors and outdoors. (b) A main body having a U-shaped cross section, side plates attached to both sides of the main body, and a back plate having an indoor ventilation hole attached to the back of the main body are each made of extruded material, and the main body and back plate are The side plate is made of an extruded material that is continuous in the horizontal and longitudinal directions and continuous in the vertical direction. (b) The outdoor interior of the main body is provided with locking grooves that are continuous in the horizontal and longitudinal direction at the upper and lower parts, with the upper locking groove opening downward and the lower locking groove opening upward. An opening edge piece projecting inward is provided on the indoor side of the main body, and an insertion piece having a hook-shaped cross section that bends toward the indoor side in correspondence with the locking groove is provided on the outdoor side of the side plate. It protrudes continuously in the vertical direction, and is provided with a fastening piece that protrudes inward on the indoor side. (c) Insert the insertion piece of the side plate into the end of the locking groove of the main body and caulk the locking groove inside the main body from the indoor side, and fasten the opening edge piece of the main body and the side plate. By fixing the piece and the back plate from the indoor side with fasteners, a casing with an arbitrary ventilation path formed inside is assembled.