JPH06159782A - Damping and sound proofing sleeve for air conditioning duct - Google Patents

Abstract

PURPOSE:To simplify the fitting of vibration proof rubber to provide a small- sized and low cost vibration proof and damping sleeve. CONSTITUTION:Outside board receiving members 8 and 9 are mounted to a side wall 6 of a sleeve main body 3. Cushion members 11 and 12 comprising a rubber band or a flat board square-shaped ring and rubber gaskets 15 and 16 are mounted to the outside board receiving members. There rubber members 11, 12, 15 and 16 are joined with the internal surface of an outside board 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration-proof and sound-insulating sleeve used in a connecting portion of an air conditioning duct.

[0002]

2. Description of the Related Art Since an air-conditioning duct is installed so as to penetrate a wall, ceiling, floor, etc. in a building, a so-called sleeve is placed on the wall, ceiling, floor, etc. It has a structure that is connected through. In this case,
In the sleeve portion, in addition to sound insulation and heat insulation, it is necessary to perform vibration isolation so that vibration is not transmitted between the duct and the body. FIG. 10 shows the structure of a conventional vibration-proof and sound-insulating sleeve that has both heat insulation and sound insulation. 10 is a cross-sectional side view of a conventionally known vibration-proof and sound-insulating sleeve, and FIG. 11 is a cross-sectional view taken along the line BB of FIG.

In FIGS. 10 and 11, reference numeral 30 designates a sleeve main body of a vibration-proof and sound-insulating sleeve, which is formed of a hollow quadrangle and has flanges 31 and 32 for connecting ducts at both ends thereof. The ducts 1 and 2 are connected to the flanges 33 and 34 by bolts (not shown). Further, the entire side surface of the sleeve body 30 has an outer plate 3 having a U-shaped cross section.
5 is surrounded by a heat insulating material 36 such as rock wool, and a side wall 37 of the sleeve body 30.
The outer plate 35 and the outer plate 35 are connected to each other with an anti-vibration rubber 38 at appropriate intervals.

The anti-vibration rubber 38 has stud bolts 39 fixed at both ends with an adhesive or the like, and these stud bolts 39 are attached to the side wall 37 of the sleeve body 30 and the outer plate 35.
It is adapted to be passed through a hole provided in and to be fixed by tightening with a nut 40. The nut 40 on the outer plate side is the concrete wall 1
Embedded in 00 or the like. A small gap formed between the outer plate 35 and the side wall 37 is closed by a rubber seal 41.

Since the sleeve body 30 of the above-described vibration-proof and sound-insulating sleeve is semi-fixed to a concrete wall or the like via a vibration-proof rubber 38, vibration of one duct 1 caused by air flow is prevented. Since it is absorbed by the vibrating rubber 38 and the vibration is not transmitted to the other duct 2,
The noise can be reduced.

[0006]

In the conventionally known vibration-proof and sound-insulating sleeve, it is necessary to connect the side wall 37 and the outer plate 35 with a large number of vibration-proof rubbers 38 as described above. Moreover,
Since the anti-vibration rubber 38 has the stud bolts 39 fixed to both ends, the anti-vibration rubber 38 is very difficult and troublesome to attach. In addition, the number of parts is large and the cost is high. Further, in order to sufficiently secure the vibration absorbing function of the vibration isolating rubber 38, it is necessary to lengthen the length thereof to some extent, which makes the vibration isolating sleeve large.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a small and inexpensive vibration-proof and sound-insulating sleeve having a simple structure.

[0008]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by connecting an outer plate and a vibration-proof and sound-insulating sleeve body through a rubber packing and a cushioning material. That is, the configuration that characterizes the present invention is that the sleeve body having flanges for duct connection at both ends, the outer plate having a U-shaped cross-section provided so as to surround the side surface of the sleeve body, and the inside of the outer plate. A heat insulating material filled and an outer plate receiving member fixed on the side surface of the sleeve body, in which a rubber packing and a cushioning material are mounted in a gap between the outer plate, and a concrete wall fixed on the side surface of the outer plate. A vibration-proof and sound-insulating sleeve for an air-conditioning duct, comprising:

Further, according to the present invention, the rubber packing and the cushioning material are constituted by a flat plate rectangular ring which is mounted in a gap between the outer plate receiving member and the flange portion of the outer plate. It can also be provided inside the outer plate.

[0010]

The outer plate is firmly fixed by the retaining member embedded in the body of the penetrating portion, and the sleeve body inserted inside the outer plate has a rubber packing and a cushion installed in the gap between the outer plate receiving member. It is semi-fixedly connected to the skin by the material. For this reason, the rubber packing and the cushioning material can be configured as a rubber band or a flat plate rectangular ring, and the vibration of the duct can be sufficiently absorbed. Further, the rubber packing and the cushioning material can be attached simply by wrapping them around the outer plate receiving member or by adhering to either one of the outer plate and the receiving member in advance with an adhesive or the like. Also, the entire inside of the outer plate can be filled with a heat insulating material.

[0011]

【Example】

Example 1. 1 is a sectional side view showing a first embodiment of the present invention,
2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a front view, and FIG. 4 is a side view. The first embodiment is a case of a wall-embedded type, and shows a vibration and sound insulation sleeve 10 having the same length dimension as the thickness of the concrete wall 100. Hollow square sleeve body 3
Are flanges 4 and 5 for connecting ducts 1 and 2 at both ends
Have. The flanges 4 and 5 are made of an angle material and are attached to the inside of the side wall 6 of the sleeve body 3 by spot welding or the like. The outer plate 7 has a U-shaped cross section, and surrounds the entire side wall 6 of the sleeve body 3. Inside the outer plate 7, outer plate receiving members 8 and 9 made of a channel material are fixed to both sides of the side wall 6 of the sleeve body 3 by spot welding or the like, and a cushioning material 11 made of a silicone rubber band or the like. 12 is the outer plate receiving member 8,
It is wrapped around the outer circumference of 9. The inner surface of the outer plate 7 is brought into close contact with these cushioning materials 11 and 12 so as to also perform a sealing action. Then, the outer plate receiving member 8,
Rubber packings 15 and 16 formed of flat square rings are mounted in the gaps between the flange 9 and the flanges 13 and 14 of the outer plate 7. The rubber packings 15 and 16 are fixedly attached to one of the outer surface of the web of the outer plate receiving members 8 and 9 or the inner surface of the flange of the outer plate 7 with an adhesive. Furthermore,
Sealing materials 17 and 18 made of the same material as the cushioning materials 11 and 12 are attached to the gap formed between the inner peripheral ends of the flanges 13 and 14 of the outer plate 7 and the side wall 6. Further, a space surrounded by the outer plate receiving members 8 and 9 on both sides inside the outer plate 7 is filled with a heat insulating material 19 such as rock wool. A retaining member 20 embedded in the concrete wall 100 is attached to the outer periphery of the outer plate 7 by spot welding.

Next, the operation of the first embodiment will be described. The outer plate 7 of the present vibration-proof and sound-insulating sleeve 10 is firmly fixed to the inside of the concrete wall 100 by a retaining member 20 made of an angle material or the like. Further, the sleeve body 3 is attached to the outer plate 7 in a semi-fixed state via the cushioning materials 11 and 12 on the outer plate receiving members 8 and 9 and the rubber packings 15 and 16. The sealing materials 17, 18 are also cushioning materials 11,
12, it has the same vibration absorbing function as the rubber packings 15 and 16. Therefore, the ducts 1 and 2 are connected to the vibration-proof and sound-insulating sleeve 10 by a flange joint, and even if vibration is generated on one side of the duct 1 due to air conditioning, the sleeve body 3 has the cushioning materials 11, 12 and the rubber as described above. Since they are semi-fixed through the packings 15 and 16 and the sealing materials 17 and 18, the vibrations are absorbed by these rubber members, so that the vibrations are not transmitted between the duct and the body and no noise is generated. Further, the heat insulating function of the present vibration-proof and sound-insulating sleeve 10 is performed by the heat insulating material 19 filled inside the outer plate 7.

Example 2. Next, FIG. 5 shows a second embodiment of the present invention.
6 is a side view showing a cross section of FIG. The second embodiment shows a case of a wall penetration type. Since the vibration-proof and sound-insulating sleeve 10 of the second embodiment is longer than the thickness of the concrete wall 100, the outer plate 7 is also wider accordingly. The outer plate receiving member 2 is also provided at the center of the sleeve body 3.
1 is provided, and the cushioning material 22 is configured to be in close contact with the inner surface of the outer plate 7. The duct connecting flanges 4 and 5 are attached outward. The other configuration is the first embodiment.
Is the same as. The operation of the second embodiment is almost the same as that of the first embodiment.

Example 3. 7 is a sectional side view showing a third embodiment of the present invention, FIG. 8 is a top view, and FIG. 9 is a side view. The third embodiment is a slab-embedded type, and is provided in a penetrating portion of the slab 101 such as a ceiling or a floor. In the case of the third embodiment, the cushioning materials 11 and 12 are configured by flat plate rectangular rings, and like the rubber packings 15 and 16, between the flange portions 13 and 14 of the outer plate 7 and the outer plate receiving members 8 and 9. It is installed in the gap. Therefore, the flat rubber members 11, 1
2, 15 and 16 adhesive surfaces (adhesive surfaces to the flange portions 13 and 14 of the outer plate 7 and the outer plate receiving members 8 and 9)
Receives lateral vibration and absorbs it.

[0015]

As described above, according to the present invention, the outer plate and the sleeve body are semi-fixedly connected by the rubber packing or the rubber packing composed of a flat plate-shaped rectangular ring and the cushioning material. Vibration can be absorbed sufficiently,
No noise is generated. Moreover, the rubber packing and the cushioning material can be attached very easily, the number of parts is small, and the size and cost can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional side view of a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a front view of the first embodiment.

FIG. 4 is a side view of the first embodiment.

FIG. 5 is a sectional side view of a second embodiment of the present invention.

FIG. 6 is a side view of the second embodiment.

FIG. 7 is a sectional side view of a third embodiment of the present invention.

FIG. 8 is a top view of the third embodiment.

FIG. 9 is a side view of the third embodiment.

FIG. 10 is a sectional side view of a conventional vibration-proof and sound-insulating sleeve.

11 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

 1, 2 Duct 3 Sleeve main body 4, 5 Duct connecting flange 6 Side wall 7 Outer plate 8, 9 Outer plate receiving member 10 Sound insulation sleeve 11, 12 Cushioning material 13, 14 Outer plate flange part 15, 16 Rubber packing 17, 18 Sealing material 19 Insulation material 20 Preventive member

Claims (3)

[Claims] 1. A sleeve main body having flanges for connecting ducts at both ends, an outer plate having a U-shaped cross section provided so as to surround a side surface of the sleeve main body, and a heat insulating material filled inside the outer plate. An outer plate receiving member fixed on a side surface of the sleeve body and having rubber packing and a cushioning material mounted in a gap between the outer plate and a through hole body such as a concrete wall fixed on a side surface of the outer plate. A vibration-proof and sound-insulating sleeve for an air-conditioning duct, comprising an embedded retaining member. 2. The air-conditioning duct protection according to claim 1, wherein the rubber packing and the cushioning material are flat plate rectangular rings mounted in a gap between the outer plate receiving member and a flange portion of the outer plate. Vibration insulation sleeve. 3. The vibration-proof and sound-insulating sleeve for an air-conditioning duct according to claim 1, wherein the outer plate receiving member is provided inside the outer plate.