JP3227519U - Duct body and air conditioning duct using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a lightweight duct main body while preventing deformation due to an increase in weight due to the provision of a branch pipe. Further, by combining the duct main bodies, it is possible to provide an air outlet at an arbitrary position in the construction of an air conditioning system, and to provide an air conditioning duct that can be installed at any installation location.
SOLUTION: A duct main body 10 is inserted into a main pipe 20 for ventilating an air flow, a branch pipe 30 connected to a side surface of the main pipe 20 to branch the air flow in the main pipe 20, and the main pipe 20 and the branch pipe 30. A reinforcing tool 40 is provided, and the reinforcing tool 40 includes a main pipe reinforcing member 41 that abuts on the inner peripheral surface of the main pipe 20, a branch pipe reinforcing member 43 that abuts on the inner peripheral surface of the branch pipe 30, and a main pipe reinforcement. It is composed of a joint member 42 that connects the member 41 and the branch pipe reinforcing member 43.
[Selection diagram] Fig. 1

Description

The present invention relates to a duct main body and an air conditioning duct using the duct body for branching the air flow in the air conditioning duct.

Conventionally, in the construction of an air-conditioning system that harmonizes air in a building such as a building, a plurality of flexible ducts are arranged in a space such as the ceiling or the inside of a wall, and in order to merge or branch airflow between the flexible ducts. A chamber or the like connected to the end of the flexible duct is used. When a branch of airflow is provided at a location other than the end of the flexible duct, the outer peripheral surface of the flexible duct is cut out and opened, and the periphery of the opening is fixed so as to be sandwiched from the inner and outer peripheral surfaces of the flexible duct. Various branch pipes (see, for example, cheese 3 (Patent Document 1), branch pipe member 30 (Patent Document 2), and T-shaped duct joint (Patent Document 3)) provided with a fixing member are disclosed.

Japanese Unexamined Patent Publication No. 7-127899 Japanese Unexamined Patent Publication No. 10-9655 Japanese Unexamined Patent Publication No. 10-205867

However, since the above-mentioned branch pipe is fixedly connected from both the inner peripheral surface and the outer peripheral surface of the flexible duct, it is deformed as the weight around the branch pipe increases and the strength of the flexible duct decreases. There is a risk. In addition, in the construction of an air conditioning system, as the weight of the entire flexible duct increases, it is equipped with a hanging member with sufficient supporting strength and load-bearing performance that can be installed by hanging it on the ceiling or fixing it to a support. It takes time and effort to select the installation location and work with a large number of people. Therefore, the flexible duct equipped with the above-mentioned branch pipe is not suitable because it has a large space such as a library or an airport, and the installation location is limited in a facility with few ceilings or walls.

Therefore, it is an object of the present invention to prevent deformation of the duct body due to an increase in weight due to the provision of the branch pipe in the duct body, and to realize a lightweight duct body. Further, by combining the duct main bodies, it is possible to provide an air outlet at an arbitrary position in the construction of an air conditioning system, and to provide an air conditioning duct that can be installed at any installation location. Is to be.

In view of the above problems, the duct main body of the present invention includes a main pipe for ventilating airflow, a branch pipe connected to the side surface of the main pipe, and a reinforcing tool inserted in the main pipe and the branch pipe.
The reinforcing tool includes a main pipe reinforcing member that contacts the inner peripheral surface of the main pipe, a branch pipe reinforcing member that contacts the inner peripheral surface of the branch pipe, and a joint member that connects the main pipe reinforcing member and the branch pipe reinforcing member. It is characterized by being composed of.

Further, in addition to the above-described configuration, the main pipe reinforcing member has a contact portion that contacts the inner peripheral surface around the branch opening portion of the main pipe and two annular annular portions that contact the inner peripheral surface of the main pipe. Is preferable.

Further, in addition to the above-described configuration, the joint member may have a short tubular shape having holes at both ends, and may have a plurality of protrusions projecting from the periphery of the holes at one end in the central axial direction. preferable.

Further, in addition to the above-described configuration, it is preferable that the branch pipe reinforcing member has a long tubular shape having holes at both ends and has a wind direction and air volume adjusting portion at one end thereof.

Further, the air conditioning duct of the present invention is characterized in that a plurality of duct main bodies having the above-described configuration are connected.

According to the invention according to claim 1-4, it is possible to prevent a decrease in the strength of the duct body and reduce the weight of the duct body by using a reinforcing tool having no fixing member on the outer peripheral surface of the duct body.

Further, according to the device according to claim 5, since the duct main body is sufficiently lightened, the duct body may be arranged behind the ceiling or a wall of a conventional building, or may not be hung from the ceiling. Also in the space, it is possible to provide an air conditioning duct provided with an outlet hole to be fixed to a support or the like.

It is an exploded perspective view which shows an example of the duct main body which concerns on embodiment of this invention. It is an exploded perspective view which shows only the reinforcing tool of the duct main body of FIG. FIG. 1A is a front view showing an air conditioning duct formed by connecting a plurality of duct main bodies of FIG. 1, and FIG.

An example of the duct body 10 of the present invention will be described in detail with reference to FIG. 1-2.
The duct main body 10 shown in the present embodiment is manufactured at a factory with the main pipe 20, the branch pipe 30, and the reinforcing tool 40, which will be described later, as one unit, and then a plurality of duct main bodies 10 are connected at the construction site. This constitutes an air conditioning duct.

The duct main body 10 includes a main pipe 20 for ventilating the air flow, a branch pipe 30 connected to the side surface of the main pipe 20 for branching the air flow in the main pipe 20, and a reinforcing tool 40 inserted in the main pipe 20 and the branch pipe 30. , Is provided.

The main pipe 20 is formed of a substantially tubular body having holes 21 and 21 at both ends, and is formed by cutting out a part of a side surface for connecting the branch pipe 30. It has a part 22. The main pipe 20 is mainly made of a high-density material such as glass wool having heat insulating properties and sound absorbing properties, the diameters of the openings 21 and 21 are about 65 cm, the total length is about 165 cm to 200 cm, and the side surfaces are covered with an outer skin material. Is formed. The branch opening portion 22 has a substantially circular shape having a diameter larger than the opening portion 31 of the branch pipe 30 described later and smaller than the opening portion 21 of the main pipe 20 when viewed from the side surface direction of the main pipe 20. It is formed by notching in. Although not shown, the main pipe 20 is made of a material such as glass wool in order to close one of the openings 21 of the main pipe 20 when the airflow used at the end of the air conditioning duct is ventilated only to the branch pipe 30. A plate-shaped closing plate having a high density may be provided.

The branch pipe 30 is formed of a substantially tubular body having holes 31 and 31 at both ends, and the branch pipe 20 has a branch hole in order to be brought into close contact with the branch hole 22 of the main pipe 20. It is bonded and fixed to the outer peripheral surface 24 around the portion 22 with a liquid adhesive, and the periphery thereof is bonded with an adhesive member 32 such as an adhesive tape. The periphery of the opening portion 31 on the side where the branch pipe 30 is adhesively fixed is formed in a curved shape along the inner peripheral surface 23 around the branch opening portion 22 without protruding into the main pipe 20. Similar to the main pipe 20 described above, the branch pipe 30 is formed by forming a high-density material such as glass wool having heat insulating properties and sound absorbing properties into a substantially tubular body, and covering the side surfaces with an outer skin material. The hole is opened in a substantially circular shape having a total length of about 25 cm and a diameter of about 45 cm.

Next, a reinforcing tool 40 for reinforcing a state in which one end of the branch pipe 30 is adhesively fixed to the branch opening portion 22 of the main pipe 20 described above will be described.
The reinforcing tool 40 includes a main pipe reinforcing member 41 that abuts on the inner peripheral surface 23 of the main pipe 20, a branch pipe reinforcing member 43 that abuts on the inner peripheral surface 23 of the branch pipe 20, and a main pipe reinforcing member 41 and a branch pipe reinforcing member 43. It is composed of a joint member 42 to be connected.

The main pipe reinforcing member 41 includes a thin plate-shaped contact portion 41a curved to abut the inner peripheral surface 23 of the main pipe 20, an opening portion 41b formed near the center of the contact portion 41a, and the main pipe 20. It has two annular portions 41c and 41c that abut and support on the inner peripheral surface 23 of the above. The opening portion 41b is formed so as to have a diameter smaller than that of the opening portion 43a of the branch pipe reinforcing member 43, which will be described later. For example, the diameter is preferably about 20 cm. Further, the annular portions 41c and 41c are fixed by fixing members such as screws from around the left and right edges of the abutting portion 41a, respectively, and are formed in an annular shape so as to abut over the entire inner peripheral surface 23 of the main pipe 20. It is a thing. Further, the main pipe reinforcing member 41 has a strip-shaped portion 41d bridged between the annular portions 41c and 41c at a position facing the contact portion 41a in order to further reinforce the main pipe 20. The main pipe reinforcing member 41 is preferably formed by using a thin plate mainly made of a metal material such as a stainless steel material.

The joint member 42 has a short tubular shape having holes at both ends, and has a plurality of projecting pieces 42a and 42a projecting from the periphery of the holes at one end in the central axial direction. The projecting pieces 42a and 42a have enough strength to be bent by a tool such as pliers, and after inserting the opening portion on the main pipe side of the joint member 42 into the opening portion 41b of the main pipe reinforcing member 41, 90 The projecting pieces 42a and 42a bent in the radial direction at an angle of about 120 degrees from degrees are bonded and fixed by welding or the like. Further, a plurality of fan-shaped blades for reducing the air volume are provided in the opening on the main pipe side of the joint member 42. The joint member 42 is preferably formed by using a thin plate mainly made of a metal material such as a stainless steel material, similarly to the main pipe reinforcing member 41.

The branch pipe reinforcing member 43 is a long tubular body having holes 43a and 43a at both ends, and is fitted to a joint member 42 previously inserted into the main pipe 20 and is a fixing member such as a screw. Is fixed to the joint member 42. The holes 43a and 43a have a diameter of about 45 cm and are smaller in diameter than the holes 21 and 21 of the main pipe 20. Further, the branch pipe reinforcing member 43 is provided on the inner peripheral surface in the vicinity of the opening portions 43a, 43a in order to attach the wind direction air volume adjusting portion 43b to the opening portions 43a, 43a of the branch pipe reinforcing member 43 to form a blowout hole. It has a mounted portion made of a convex piece provided with a mounting hole. It should be noted that the branch pipe reinforcing member 43 is preferably formed by using a material mainly made of a lightweight synthetic resin material such as plastic.

The wind direction air volume adjusting portion 43b has an annular nozzle 43c and a mounting portion 43d for fixing with a fixing member such as a screw to be attached to the mounted portion. The wind direction and air volume adjusting unit 43b may use a rotatable blade body, a shutter such as a rotating plate, or the like instead of the nozzle.

The above-mentioned reinforcing tool 40 can fit and hold the branch pipe reinforcing member 43 by the joint member 42 without requiring a mounting member on the outer peripheral surface side of the duct main body 10, and the outer skin of the outer peripheral surface of the duct main body 10. By providing a branching hole 22 formed of a material or the like with only a minimum notch and inserting a lightweight reinforcing tool 40, the vicinity of the branching hole 22 of the main pipe 20 and the branch are formed. It is possible to reinforce the pipe 30.

Next, a state in which the above-mentioned duct main body 10 is combined and an air conditioning duct formed by connecting the duct main body 10 having an outlet hole is installed will be described with reference to FIG.
In a facility having a large space, this air-conditioning duct ventilates cold air and warm air in the air-conditioning duct and then blows out from the outlet of the branch pipe 30. The duct main body 10 is formed by wrapping both ends of a plurality of duct main bodies 10 with adhesive tape or the like to connect them to form one straight line, and then arranging a plurality of these air conditioning ducts in parallel on the columns 50 and 50. is there. Further, the duct main body 10 supports and fixes the duct main body 10 to the columns 50, 50 via support members 51, 51 made of substantially fan-shaped plate members.

Therefore, in the above-mentioned air conditioning duct, since the duct main body 10 is sufficiently lightened, it may be arranged on the ceiling or wall of a conventional building or in a large space where it cannot be hung from the ceiling. It is possible to provide an air-conditioning duct having an outlet hole that can be supported and fixed from the side surface direction of the duct main body 10 to the columns 50 and 50 that are simply provided.

10 Duct body,
20 Main pipe, 21 Opening part, 22 Opening part for branching, 23 Inner peripheral surface, 24 Outer peripheral surface,
30 branch pipe, 31 perforation, 32 adhesive member,
40 reinforcements,
41 Main pipe reinforcement member, 41a contact part, 41b perforated part, 41c annular part, 41d band-shaped part,
42 fittings, 42a projectiles,
43 Branch pipe reinforcement member, 43a opening part, 43b wind direction air volume adjustment part, 43c nozzle, 43d mounting part,
50 stanchions, 51 support members.

Claims (5)

It is provided with a main pipe for ventilating airflow, a branch pipe connected to the side surface of the main pipe, and a reinforcing tool inserted in the main pipe and the branch pipe.
The reinforcing tool includes a main pipe reinforcing member that contacts the inner peripheral surface of the main pipe, a branch pipe reinforcing member that contacts the inner peripheral surface of the branch pipe, and a joint member that connects the main pipe reinforcing member and the branch pipe reinforcing member. The duct body is characterized by being composed of. Claim 1 is characterized in that the main pipe reinforcing member has a contact portion that contacts the inner peripheral surface around the branch opening portion of the main pipe and two annular annular portions that contact the inner peripheral surface of the main pipe. The described duct body. The first aspect of the present invention, wherein the joint member has a short tubular shape having holes at both ends, and has a plurality of protrusions projecting from the periphery of the holes at one end in the central axial direction. Duct body. The duct body according to any one of claims 1 to 3, wherein the branch pipe reinforcing member has a long tubular shape having holes at both ends and has a wind direction and air volume adjusting portion at one end thereof. An air-conditioning duct characterized in that a plurality of duct bodies according to any one of claims 1 to 4 are connected.

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