JP2002147828A - Air-conditioner piping pipe joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost of a pipe joint A. SOLUTION: An air-conditioning piping pipe joint A is provided, to which an air-conditioning piping 1 is connected for conversion or branching of the air direction, and further in which a joint cylinder 60 of the air-conditioning piping is provided on a side surface of its rectangular joint body 10. The rectangular joint body 10 comprises a bottom longitudinal plate member 11, where a longitudinal plate is continuously raised on the longitudinal edge of a bottom plate, left and right side plate members 12, 13 for covering the left and right side surfaces and the upper surface of the bottom longitudinal plate member, a cover member 14, and a heat-insulating member 30 laid on respective inner surfaces of the bottom longitudinal plate member, the left and right side plate member, and a cover member. A joint cylinder 60 is provided on either of longitudinal and left and right surfaces of the foregoing bottom longitudinal plate member and left and right side plate member, and communicated with which joint cylinder 60 holes 50, 51 are formed inside the bottom longitudinal plate member, the left and right side plate member, and the heat-insulating member, both holes communicating with the inside thereof. The pipe joint A is anchored with a suspended lever 80 from a ceiling via a hole 70.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joint for an air-conditioning pipe provided behind a ceiling or the like.

[0002]

2. Description of the Related Art An air-conditioning pipe of this type will be described with reference to FIG. 10 which is an example of an embodiment of the present invention. And a pipe joint A is interposed at the direction change position or the branch position.

As shown in FIG. 17, for example, a galvanized steel wire 3 is provided on the outer peripheral surface of a cylindrical glass cloth 2 as shown in FIG.
Helically wound around the outer surface of glass wool 4 and vinyl chloride film (aluminum / polyethylene sheet)
5 is covered. In the case of a conventional pipe joint A, for example, for branching, as shown in FIG. 18, a glass wool 8 is wound around an outer peripheral surface of a T-shaped metal tubular joint body 7, and the outer surface is made of aluminum. It is covered with a sheet 9 such as a polyethylene sheet, and the end of the duct 1 is fitted and connected to each port 6a.

[0004]

Conventionally, since the duct 1 is cylindrical, it is considered that the pipe joint A also needs to have a circular cross section. For example, in the case of a branch pipe, it is considered that the pipe 1A has a cylindrical shape. In this configuration, the cylinder 1b is connected to the side surface (FIG. 18).
(A)). Since the connection between the cylinder 1a and the cylinder 1b is made by connecting the arc edge to the arc surface, the cutting shape and the welding shape are complicated, which causes an increase in product cost. Also, when winding the glass wool 8 around the arc surface, because of the arc surface,
Although skill is required, glass wool 8 having a shape along the circular arc surface is also manufactured, but it must be manufactured for each type of pipe joint A, which causes an increase in cost.

An object of the present invention is to reduce the cost of a pipe joint.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to an air-conditioning pipe, in which a pressure loss is caused by bending and branching of a duct (by turning air flow and branching), and It was discovered that even if the cross-section of the flow path was not arc-shaped, the overall pressure loss was not significantly affected, and the joint body was made into a rectangular body that was easy to manufacture.

[0007] As shown in the embodiments and examples described later, the rectangular shape can be manufactured by bending or joining flat plates, and the work is easy and inexpensive.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention relates to a pipe joint for an air-conditioning pipe connected to an air-conditioning pipe to change the direction or branch of an air flow. A structure with a joint tube is adopted.

In this configuration, if a hole communicating with the upper and lower surfaces of the joint body is formed, and a hanging rod from the ceiling is inserted into the hole to prevent it from falling off, and the hanging rod can be supported on the ceiling. If it is not possible to respond to a change in the branching / communication direction by rotating around the axis, the ceiling is supported by turning the top and bottom upside down and inserting a hanging rod into the hole to prevent it from falling out. The direction of the branch / communication can be changed (see FIG. 13). The hole is preferably on the square axis.

The specific shape of the above-mentioned rectangular joint body is the same as that of the dice-like configuration, and is well known in the art, such as assembling from a cross-shaped development state, joining one plate, and joining a total of six plates. The bottom front and rear plate members that are continuously raised at the front and rear edges of the bottom plate, the left and right side plate members and the lid member that cover the left and right side surfaces and the upper surface of the bottom front and rear plate members, and the bottom plate The joint tube is provided on one of front, rear, left and right surfaces of the bottom front and rear plate members and the left and right side plate members. It is possible to adopt a configuration in which holes are formed in the bottom front and rear plate members, the left and right side plate members, and the heat insulating material so as to communicate with the cylinder.

[0011] The joint body having the above structure has a bottom front and rear plate member,
The left and right side plate members are joined by welding (welding) etc., heat insulating material is stretched on the inner surface, if necessary, reinforcing ribs are arranged on the inner surface, and the lid member with heat insulating material is connected and manufactured I do. At this time, the bottom front and rear plate members, the left and right side plate members, and the lid member can be integrated by fitting other than welding, and the fitting is a one-touch operation, and the workability is good.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS. 1 to 7 and is a branch pipe joint A having a three-way opening having the same diameter. As shown in FIGS. 4 and 5, the pipe joint A is made of a cubic outer box 10 and an inner box 20 made of a zinc steel plate and a heat insulating material 3 made of glass wool.
0. The outer box 10 includes a bottom front and rear plate member 11,
Circular holes 50 are formed in the front and rear surfaces of the bottom front and rear plate members 11 and the right side plate member 12, and the joints for connection with the duct 1 are formed around the holes 50. The tube 60 is welded. A hole 51 is also formed in the heat insulating material 30 in accordance with the hole 50.

The inner box 20 includes a bottom front and rear plate member 21 and a cover member 24. The bottom front and rear plate member 21 has a hole 53 corresponding to the hole 50. The inner box 20 is for fixing the heat insulating material 30 to the outer box 10 and is not always necessary. The inner box 20 may have a frame structure as a whole, such as a rib structure on the bottom surface of the bottom plate 21. When the inner box 20 is not provided, a heat insulating material 30 is stretched over the outer box 10 with an adhesive or the like.

The bottom and front plate members 11 and 21, the left and right plate members 12 and 13, and the lid members 14 and 24 are connected to each other by holes 4.
This is carried out by fitting and locking the first piece and the rising piece 42 (FIG. 7), and fitting and locking the hole 41, the rising piece 42, and the member side wall. In the locking operation, for example, in the embodiment of FIG. 6, the lid member 24 is engaged by fitting the side wall 24a into the hole 41 and the rising piece 42 of the rib 21a of the bottom front and rear plate member 21 in the direction of the arrow. Stop and this work can be done with one touch.

In the members 11, 30, 21, 24 and 14 corresponding to the upper and lower surfaces (cover surface and bottom surface) of the pipe joint A, a through hole 70 is formed at the center (axis of a quadrilateral). Thus, it is suspended through this hole 70. Therefore, reinforcing ribs 21b and 24b are provided as appropriate. In addition,
A glass cloth or a nonwoven fabric may be attached to the inner surface (air contact surface) of the heat insulating material 30 for scattering prevention. In the figure, 43
Is a screw.

As shown in FIG. 5, the pipe joint A is constructed by assembling the outer box 10, putting the heat insulating material 30 on the inner surface thereof, fitting the inner box 20 on the inner surface thereof, and finally fitting the lid member 14. It is assembled by doing. That is, they are all assembled by fitting, and work such as welding is unnecessary. FIG. 1 shows a perspective view, FIG. 2 shows a cut front view, and FIG. 3 shows a cut plan view.

Although this embodiment has a three-way port, a two-way port is shown in FIG. 8 and a four-port port is shown in FIG. 9, and these are cylinders 60 corresponding to each port. And a hole 50 and the like are formed in each member.

In each of these embodiments, as shown in FIGS. 10 and 12, the suspension rod (bolt) 80 connected to the duct 1 is inserted from the ceiling wall into the hole 70 on the upper surface, and the nut 81 is fixed. It is arranged by. In the two-way mouth joint A, the direction of the mouth can be changed by turning the suspension rod 80 by 90 degrees around the suspension rod 80 (in the direction of the arrow or in the opposite direction), as indicated by the chain line from the solid line in FIG.

Here, when the diameter of each mouth is different, it may not be possible to cope with the change of the mouth direction by rotating the mouth. For example, in the case shown in each of FIGS. 13A and 13B, rotation around the suspension rod 80 (the hole 70) cannot respond. In that case, if you reverse the top and bottom as shown by the arrow,
Can respond. At this time, it is suspended using the hole 70 on the bottom surface. Here, the significance of forming the holes 70 on the upper and lower surfaces is significant. When the top and bottom are not reversed, only the holes 70 on the upper surface may be used. Alternatively, the hanging rod 80 may be inserted into the holes 70 and 70 on the upper and lower surfaces, and the nut may be fixed on the lower surface of the member 11.

In the air-conditioning pipe according to this embodiment, no pressure loss was found that would cause a problem as compared with the prior art. In particular, the difference was minimal at the branch.

As another configuration of the rectangular body (the pipe joint body) composed of the plate members 11, 12, 13, and 14, FIG.
As shown in FIG. 5, those 11a, 12a, 13a, 14
a are connected in a cross-shaped unfolded state,
Various shapes such as those formed by bending along the folding line r into the shape shown in FIG. 14 and those formed of a single plate 16a as shown in FIG. Can be adopted. In these, the joining tongue piece 15a
Can also be provided. The tongue piece 15a can be joined to the outer or inner surface. In the embodiment of FIG. 1, a piece 1 corresponding to a tongue piece
5 is on the outer surface but could be the inner surface.

[0022]

As described above, since the present invention has a rectangular shape, it can be easily manufactured and can be inexpensive.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment.

FIG. 2 is a cut left side view of the embodiment.

FIG. 3 is a cut-away plan view of the embodiment.

FIG. 4 is an exploded perspective view of the embodiment.

FIG. 5 is an explanatory view of the assembly of the embodiment.

FIGS. 6A and 6B are explanatory views of assembly of the embodiment, in which FIG. 6A is a partial perspective view and FIG. 6B is a sectional view of FIG.

FIGS. 7A and 7B are explanatory views of the assembly of the embodiment, in which FIG. 7A is a partial perspective view and FIG. 7B is a sectional view of FIG.

FIG. 8 is a perspective view of another embodiment.

FIG. 9 is a perspective view of another embodiment.

FIG. 10 is a diagram showing the use of each embodiment.

FIG. 11 is a diagram of use of each embodiment.

FIG. 12 is a sectional view of a main part of the usage example.

FIG. 13 is a perspective view of another embodiment.

FIG. 14 is a perspective view of another embodiment.

FIG. 15 is a diagram illustrating the production of the same embodiment.

FIG. 16 is an explanatory view showing the production of another embodiment.

FIG. 17 is a partially cutaway perspective view of a duct.

FIG. 18A is a perspective view of a conventional example, and FIG.

[Explanation of symbols]

 A pipe joint 1 duct 10 outer case 11 bottom front and rear plate member 12 right side plate member 13 left side plate member 14 cover member 20 inner box 21 bottom front and rear plate member 21b reinforcing rib 24 lid member 24b reinforcing rib 30 heat insulating material 50 air hole 60 connection Joint tube 70 Suspension hole 80 Suspension rod 81 Lock nut

Claims (4)

[Claims] An air-conditioning pipe joint A to which an air-conditioning pipe 1 is connected to change a direction or a branch of an air flow, wherein a joint cylinder 60 of the air-conditioning pipe 1 is provided on a side surface of a rectangular joint body 10. A pipe joint for air-conditioning piping, which is provided. 2. A hole 70 communicating with the upper and lower surfaces of the joint body 10.
The air-conditioning pipe pipe according to claim 1, wherein a hanging rod 80 from the ceiling is inserted into the hole 70 to prevent the hanging rod 80 from coming off, and the hanging rod 80 can be supported on the ceiling. Fittings. 3. The rectangular joint body 10 includes a bottom front and rear plate member 11 having front and rear plates continuously raised at front and rear edges of the bottom plate.
And left and right side plate members 12 and 13 and a lid member 14 which cover the left and right side surfaces and the upper surface of the bottom front and rear plate member 11, and tension on each inner surface of the bottom front and rear plate member 11, the left and right side plate members 12 and 13 and the lid member 14. The joint tube 60 is provided on any of the front and rear left and right surfaces of the bottom front and rear plate members 11 and the left and right side plate members 12 and 13.
Front and rear plate members 11, left and right plate members 12, 13
The pipe joint for an air conditioning pipe according to claim 1 or 2, wherein holes (50, 51) communicating with the inside of the heat insulating material (30) are formed. 4. The bottom front and rear plate member 11 and the left and right side plate members 1.
The pipe joint for an air-conditioning pipe according to claim 3, wherein the lids (2, 13) and the lid member (14) are integrated by fittings (41, 42).