JP3151483B2 - Vibration and sound insulation sleeve for air conditioning duct - Google Patents

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 for a connection part of an air conditioning duct.

[0002]

2. Description of the Related Art Air-conditioning ducts are provided through walls, ceilings, floors and the like in a building. It is structured to be connected via In this case,
At the portion of the sleeve, it is necessary to provide vibration insulation in addition to sound insulation and heat insulation so that no vibration is transmitted between the duct and the wall . FIG. 10 shows a configuration of a conventional vibration-proof and sound-insulating sleeve having both such heat insulation and sound insulation. FIG. 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 line BB of FIG.

[0003] In Figs. 10 and 11, reference numeral 30 denotes a sleeve body of a vibration-proof and sound-insulating sleeve, which is formed in a hollow square shape, and has flanges 31 and 32 for connecting ducts at both ends. And the flanges 33 and 34 of the ducts 1 and 2 of FIG. The entire side surface of the sleeve body 30 has an outer plate 3 having a U-shaped cross section.
5, the inside of which is filled with a heat insulating material 36 such as rock wool, and a side wall 37 of the sleeve body 30.
And the outer plate 35 are connected to each other at an appropriate interval by a vibration-proof rubber 38.

[0004] The vibration isolating rubber 38 has stud bolts 39 fixed to both ends thereof 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.
Through a hole provided in the nut and tightened and fixed with a nut 40. The nut 40 on the outer plate side is the concrete wall 1
Embedded in 00 or the like. The 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-mentioned vibration-proof and sound-insulating sleeve is semi-fixed to a concrete wall or the like via the vibration-proof rubber 38, the vibration of one duct 1 caused by the flow of air is prevented. Since the vibration is not absorbed by the vibration rubber 38 and transmitted to the wall 100 , noise can be reduced.

[0006]

The conventionally known vibration-proof and sound-insulating sleeves need to be connected between 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 mounting of the anti-vibration rubber 38 is very difficult and troublesome. 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 increase the length thereof to some extent, so that the vibration isolating and insulating sleeve becomes large.

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

[0008]

The present invention has solved the above-mentioned problems by connecting an outer plate and a vibration-proof and sound-insulating sleeve body via a cushioning material. That is, the characteristic feature of the present invention is that the sleeve body 3 having the flanges 4 for duct connection at both ends, the outer plate 7 having a U-shaped cross section provided so as to surround the side surface of the sleeve body 3, The heat insulating material 19 filled in the inside of the plate 7 is fixed on the side surface of the sleeve body 3, and rubber packings 15, 16 and cushioning materials 11, 12 are mounted in gaps with the outer plate 7, An air conditioner having outer plate receiving members 8 and 9 provided inside the outer plate 7 and a retaining member 20 fixed on a side surface of the outer plate 7 and embedded in a through portion such as a concrete wall. Located on the vibration and sound insulation sleeve of the duct.

[0009]

[0010]

The outer plate is firmly fixed by a retaining member embedded in the body of the through portion, and the sleeve body inserted inside the outer plate is a rubber packing and cushioning material mounted in a gap between the outer plate receiving member. Is semi-fixedly connected to the outer plate. For this reason, the rubber packing and the cushioning material can be formed as a rubber band or a flat rectangular ring, and can sufficiently absorb the vibration of the duct. Further, the rubber packing and the cushioning material can be attached simply by wrapping the rubber packing on the outer plate receiving member or pasting it to one of the outer plate and the receiving member with an adhesive or the like. Further, the entire inside of the outer plate can be filled with the heat insulating material.

[0011]

【Example】

Embodiment 1 FIG. FIG. 1 is a sectional side view showing a first embodiment of the present invention,
2 is a sectional view taken along line AA of FIG. 1, FIG. 3 is a front view, and FIG. 4 is a side view. Example 1 is a case of a wall-embedded type, and shows a vibration-proof and sound-insulating sleeve 10 having the same length as the thickness of the concrete wall 100. Hollow square sleeve body 3
Are flanges 4 and 5 at both ends for connecting with ducts 1 and 2
Having. 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 is formed in 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 is provided. 12 is the outer plate receiving member 8,
9 is wound around the outer periphery. The inner surface of the outer plate 7 is brought into close contact with these cushioning materials 11 and 12, and also performs a sealing action. And the outer plate receiving member 8,
Rubber packings 15 and 16 composed of flat rectangular rings are mounted in gaps between the flange 9 and the flange portions 13 and 14 of the outer plate 7. The rubber packings 15 and 16 are fixed to one of the outer surfaces of the webs of the outer plate receiving members 8 and 9 and the inner surfaces of the flanges of the outer plate 7 with an adhesive. Furthermore,
Sealing members 17 and 18 made of the same material as the cushioning members 11 and 12 are attached to gaps formed between the inner peripheral ends of the flange portions 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 mounted on the outer periphery of the outer panel 7 by spot welding.

Next, the operation of the first embodiment will be described. The outer plate 7 of the vibration-proof and sound-insulating sleeve 10 is firmly fixed in the through portion 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 and the rubber packings 15 and 16 on the outer plate receiving members 8 and 9. Sealing materials 17, 18 are also cushioning materials 11,
12, 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 occurs on one of the ducts 1 side due to air conditioning, the sleeve main body 3 retains the cushioning materials 11 and 12, Since the rubber members are semi-fixed via the packings 15, 16 and the sealing members 17, 18, vibrations are absorbed by these rubber members, so that vibrations are not transmitted between the duct and the frame and no noise is generated. The heat insulation effect of the vibration-proof and sound-insulating sleeve 10 is performed by a heat insulating material 19 filled in the outer plate 7.

Embodiment 2 FIG. Next, FIG. 5 shows Embodiment 2 of the present invention.
FIG. 6 is a side view. The second embodiment shows a case of a through-wall 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 widened accordingly. The outer plate receiving member 2 is also provided at the center of the sleeve body 3.
1 is provided, and the cushioning member 22 closely adheres to the inner surface of the outer plate 7. In addition, the flanges 4 and 5 for duct connection are attached outward. Other configurations are described in the first embodiment.
Is the same as The operation of the second embodiment is almost the same as that of the first embodiment.

Embodiment 3 FIG. 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 of a slab-embedded type, and is provided at a penetrating portion of the slab 101 such as a ceiling or a floor. In the case of the third embodiment, the cushioning members 11 and 12 are formed of flat 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. Mounted in the gap. Therefore, the flat rubber members 11, 1
Bonding surfaces of 2, 15, and 16 (bonding surfaces to flange portions 13 and 14 of outer plate 7 and 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 main body are semi-fixedly connected by the rubber packing or the cushioning material formed of the rubber band or the flat rectangular ring. Vibration can be sufficiently absorbed,
Does not generate noise. Further, the mounting of the rubber packing and the cushioning material is extremely simple, the number of parts is small, and the size and cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional side view of Embodiment 1 of the present invention.

FIG. 2 is a sectional view taken along 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 Embodiment 2 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 cross-sectional side view of a conventional vibration-proof and sound-insulating sleeve.

FIG. 11 is a sectional view taken along line BB of FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 2 Duct 3 Sleeve body 4, 5 Duct connection flange 6 Side wall 7 Outer plate 8, 9 Outer plate receiving member 10 Sound insulation sleeve 11, 12 Buffer material 13, 14 Outer plate flange portion 15, 16 Rubber packing 17, 18 Sealing material 19 Insulating material 20 Retaining member

Claims (1)

(57) [Claims] 1. A sleeve main body 3 having a flange 4 for duct connection at both ends, an outer plate 7 having a U-shaped cross section provided so as to surround a side surface of the sleeve main body 3, and filling the inside of the outer plate 7 Heat insulating material 19, rubber packings 15, 16 and cushioning materials 11, 12, which are fixed on the side surface of the sleeve body 3 and are
Are attached, and outer plate receiving members 8 and 9 provided inside the outer plate 7, and a retaining member buried in a penetrating portion such as a concrete wall fixed on a side surface of the outer plate 7. 20. A vibration-proof and sound-insulating sleeve for an air conditioning duct, comprising: