JPH10288389A - Connecting duct - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect ducts together so as to adjust a space. SOLUTION: A connecting duct comprises a pair of third side wall members 2C provided along the direction X of piping and connected by bearing members 3C and a third cover member 5C detachably attached to the third side wall members 2C. For each of a pair of third side wall members 2C, a holding part 14 is provided for holding the edge part 13A of a first cover member 5A at one end side in the direction X of piping while permitting the relative movement of the first cover member 5A in the direction X of piping. At the other end in the direction X of piping, a third upper edge part 6C is provided for attaching a third cover member 5C. A cut-out part 11 is provided for internally inserting first side wall members 2A between the holding member 14 and the third upper edge part 6C so that the duct is externally fitted to a first duct D1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a first duct having a pair of first side wall members, a first lid member detachably attachable to the pair of first side wall members, and a pair of second side walls. A connection duct attached between the first duct and the second duct to connect the member and a second duct having a second lid member detachably attachable to the pair of second side wall members. About.

[0002]

2. Description of the Related Art Conventionally, for example, when air conditioning piping is installed on each floor from an air conditioner installed on the roof of a building or the like, especially on the roof, it is laid using a duct for piping. May be. In this case, a large number of fixed-size ducts are sequentially connected to form a duct for piping. For example, in order to connect the first duct and the second duct to each other, a connecting tool is provided over the first side wall member of the first duct and the second side wall member of the second duct, and the connecting tool is provided. And the first side wall member, and the connecting tool and the second side wall member are fastened by a male screw member, and then the connection lid member is attached to the first lid member of the first duct and the second lid member of the second duct. The method of bridging is used.

[0003]

However, when the ducts are connected to each other by using the above-mentioned conventional connecting tool, there are the following problems. In other words, when a duct for piping is installed over a predetermined distance, a so-called rising portion is formed using a curved duct at a specific location on an installation route due to a structure on a rooftop and other installations. In some cases, a falling portion or a corner portion must be formed.
Usually, since each duct is formed in a fixed length, it is necessary to cut or cut a duct connected to a rising portion or the like whose position is limited as described above to a predetermined distance. For this reason, piping work may be very troublesome.

[0004] It is an object of the present invention to solve the above-mentioned drawbacks of the prior art and to provide a connecting duct capable of connecting the ducts at an adjustable distance.

[0005]

The features of the present invention for achieving this object will be described with reference to the example shown in FIG.

(Structure 1) The connecting duct of the present invention is provided along the piping direction X as described in claim 1,
It has a pair of third side wall members 2C connected by a receiving member 3C, and a third lid member 5C detachably attachable to the third side wall members 2C, and each of the pair of third side wall members 2C. To the first end in the pipe direction X,
A holder 14 for holding the edge 13A of the first lid member 5A while allowing the lid member 5A to relatively move in the piping direction X is provided, and the third lid is provided on the other end side in the piping direction X. A notch 11 in which a third upper edge 6C for mounting the member 5C is provided and the first side wall member 2A can be inserted inside between the holding portion 14 and the third upper edge 6C.
Is provided so as to be externally fitted to and attached to the first duct D1. (Operation / Effect) According to the connection duct of this configuration, at the end on the first duct side, the holding portion holds the edge of the first lid member related to the first duct. The holding portion allows the first lid member to relatively move in the pipe direction with respect to the connection duct, so that the first duct and the second duct can be connected to each other with an adjustable distance therebetween. . The connection duct is provided with a cutout inside the third side wall member so that the first side wall member can be inserted. That is, the connection duct is fitted to the first duct outside. With this configuration, the internal space of the first duct or the second duct is not eroded, and there is no obstacle to laying various pipes inside the duct.

(Structure 2) As described in claim 2, the connection duct according to the present invention is characterized in that the end of the third side wall member 2C on the side where the third upper edge 6C is provided is provided at the end. Second
A connection fixing portion for connecting and fixing to the side wall member 2B can be provided. (Operation / Effect) As in the present configuration, the connection duct may be simply connected and fixed to the second duct. Therefore, even when the connection duct is inserted between the first duct and the second duct to be originally connected. However, the number of locations to be connected and fixed does not increase. Therefore, the first duct and the second duct can be connected only by performing an operation equivalent to the original installation operation.

[0008] In the description of the means for solving the above problems, reference is made to the drawings and, in order to facilitate comparison with the drawings, the reference numerals are used, but the present invention is limited to the configuration shown in the accompanying drawings. Not something.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

[0010] The connection duct according to the present invention is provided with various pipes P
This is for connecting ducts used in connection with the pipe direction X to adjust the distance between the two ducts. FIG. 1 shows an appearance in a case where linear ducts are connected to each other using the connection duct. The connection duct is applicable not only to connecting straight ducts, but also to a connection between a straight duct and a curved duct.

The duct to be connected has the following configuration.
That is, the duct D has the bottom edge 1 and a pair of side wall members 2 provided along the pipe direction X connected by the plurality of receiving members 3, and the pair of side wall members 2. It comprises a bottom member 4 that can be detachably attached, and a lid member 5 that can be detachably attached to the pair of side wall members 2. The side wall member 2 is formed by bending the upper edge portion 6 and the bottom edge portion 1. The upper edge 6 is used as a mounting portion for the lid member 5, and the bottom edge 1 is used as a mounting portion for the bottom member 4. In addition, by bending and configuring in this manner, the side wall member 2 can be reinforced.

The pair of side wall members 2 are connected by a plurality of receiving members 3. The receiving member 3 also has a function of placing various pipes P laid inside the duct D.
The side wall member 2 and the receiving member 3 are detachably fixed by a male screw member N.

As shown in FIGS. 3 and 4, from the inside of the pair of side wall members 2, a bottom member 4 is attached. The bottom members 4 are configured to have dimensions corresponding to the intervals between the receiving members 3 adjacent to each other in the pipe direction X, and each of the bottom members 4 is individually set so as to close the opening between the receiving members 3. Attach. The bottom member 4 is provided with a contact side portion 7 that can be in contact with the pair of bottom edges 1 from inside on both sides along the pipe direction X.
have. In addition, a step 8 for mounting on the edge of the receiving member 3 is formed on both sides in the pipe direction X. Holes 9A and 9B are provided in the contact side portion 7 and the bottom edge 1 of the side wall member 2, and the male screw member is formed on the contact side portion 7 and the bottom edge 1 from outside the duct D. N, and is screwed and fixed to a female screw member n provided inside the duct D.

In order to attach the lid member 5 to the upper edge 6,
As shown in FIG. 1, a male screw member N is inserted from above into a hole provided in the lid member 5 and a hole provided in the upper edge 6, and a female screw provided on the back side of the hole in the upper edge 6. This is performed by screwing the male screw member N into the member n. The internal thread member n
For example, a female screw may be formed directly in the hole of the upper edge 6, or a female screw member separately formed may be attached by welding or the like.

Next, an example in which the first duct D1 and the second duct D2 are connected using the connection duct of the present invention is shown in FIGS. The third duct D3 is connected to the first duct D1 and the second duct D1.
It is attached between the first duct D1 and the second duct D2 while the distance between the duct D2 and the duct D2 is adjustable. The third duct D3 includes a pair of third side wall members 2C connected by at least one third receiving member 3C, a third lid member 5C detachably attachable to the third side wall member 2C, and a third lid member 5C. And three bottom members 4C.

The third duct D3 is connected to, for example, the first duct D1 so as to be relatively movable along the pipe direction X. On the other hand, the third duct D3 is connected to the second duct D2 so as to be relatively immovable along the pipe direction X. As shown in FIG.
The side wall member 2C is also formed by bending similarly to the first side wall member 2A and the like. On the side of the third lid member 5C, the third lid member 5
A third upper edge 6C for attaching C is formed. However, the third upper edge portion 6C is formed from the second duct D2 side in the pipe direction X over approximately half the length of the third side wall member 2C. In the remaining area where the third upper edge portion 6C is not formed, a notch such that the first side wall member 2A of the first duct D1 can freely move back and forth along the pipe direction X with respect to the third side wall member 2C. 11 is provided. The notch 11 is
In addition to cutting off the third upper edge 6C, the bent portion 1
It is formed over the region of 2C.

The third duct D3 and the first duct D1
Is connected as follows. At one end of the third side wall member 2C in the pipe direction X on one end side of the first duct D1 side, the first lid member 5A of the first duct D1 is allowed to relatively move in the pipe direction X. A holding portion for holding the first edge portion 13A of the first lid member 5A is provided. The tip of the holding portion 14 is bent so as to be substantially parallel to the bent portion 12C and to have a different surface height from the bent portion 12C. The first edge 13A is inserted between the bent portion 12C and the tip of the holding portion 14, and the first lid member 5A is moved relative to the third duct D3 so that the third side wall member 2C can move relative to the third duct D3. Is held. The first edge 1
In order to insert 3A into the holding portion 14, the first edge 1
It is desirable that 3A be slightly separated from the bent portion 12A of the first side wall member 2A in advance. For example, the first lid member 5A
Is attached to the first side wall member 2A, the first edge 13A
And the bent portion 12A of the first side wall member 2A may be configured to be separated substantially in parallel.
The inclination angle of the first edge 13A may be made shallow with respect to the inclination angle of A, and the first edge 13A may be separated from the bent portion 12A. The third duct D3
The relative movable stroke between the first duct D <b> 1 and the first duct D <b> 1 is determined by the length of the notch 11 in the pipe direction X. That is, as long as the first edge portion 13A of the first lid member 5A is held by the holding portion 14, the third duct D3 and the first
It can be separated from the duct D1. On the other hand, the first duct D1
And the second duct D2 are closest to each other because the first duct D1 is inserted deeper into the third duct D3, and the end face 15A of the first lid member 5A is the end face of the third upper edge 6C. 15C.

The third lid member 5C includes a pair of third side wall members 2
In this case, the male screw member N is attached to the hole 16 provided in the third upper edge 6C and the hole 17 provided in the third lid member 5C. that time,
A female screw member n may be attached in advance to the back side of the hole 16 provided in the third upper edge 6C. When the third lid member 5C is attached, the third edge 13C of the third lid member 5C is
As shown in FIG. 1, the third side wall member 2 near the third upper edge portion 6 </ b> C is in a state of covering the front end portion of the holding portion 14.
C is separated from the bent portion 12C. The upper surface 18A of the first lid member 5A and the upper surface 18C of the third upper edge portion 6C are substantially flush with each other, and particularly when the third lid member 5C is attached to the third upper edge portion 6C. No problem. The attachment of the third lid member 5C may be performed after the first duct D1 is inserted into the third duct D3, or may be performed before the first duct D1 is inserted.

On the other hand, the connection between the second duct D2 and the third duct D3 is performed as follows using a normal connecting tool. The connection tool is attached to a connection fixing portion 19 provided at an end of the second side wall member 2B and a connection fixing portion 19 provided at an end of the third side wall member 2C. And a connection lid member 21 and a lid backing plate 22.

FIGS. 1 and 2 and FIG.
, The second side wall member 2B and the third side wall member 2
It is formed by bending according to the shape of C. The connector main body 20 has holes 23 corresponding to holes 19B provided as connection fixing portions in the second side wall member 2B and holes 19C provided as connection fixing portions in the third side wall member 2C. The male screw member N is penetrated through these holes 19B, 19C, and 23 to connect the second side wall member 2B and the third side wall member 2C. The male screw member N penetrates from the outside of the duct D toward the inside, and is screwed to the female screw member n inside the second side wall member 2B and inside the third side wall member 2C.
The female screw member n is formed in the hole 19 of the second side wall member 2B.
B and the hole 19C of the third side wall member 2C may be formed directly, or the separately formed female screw member n may be welded or the like to the second side wall member 2B or the third side wall member 2C.
May be fixed. A seal member 24 is provided on the back surface of both sides located at both ends in the pipe direction X in the peripheral portion of the connector main body 20 for the purpose of preventing rainwater from entering the inside of the duct D. deep. The seal member 24 can be made of, for example, a general rubber member (CR), various sponge-like resins, felt, or other fibers.

The connection lid member 21 and the lid backing plate 2
2 is attached as follows. At the upper edge of the connection tool body 20 after the attachment is completed, a cover backing plate receiving portion 25 is provided to extend inward of the duct D. The lid backing plate receiving portion 25 is formed in a hook shape having a groove portion 26 as shown in FIG. The lid backing plate 22 is temporarily fixed to a pair of lid backing plate receiving portions 25 attached to the left and right side wall members 2B and 2C. Female screw members n are attached to the back surfaces of both ends of the lid backing plate 22 in a direction perpendicular to the pipe direction X. The female screw member n is for screwing a male screw member N used for fastening the lid backing plate 22 and the connection lid member 21.
The lid backing plate 22 is placed on the upper surface of the lid backing plate receiving portion 25 while being properly fitted into the groove 26 of FIG. In this case, the both end portions of the lid backing plate 22 are the lid backing plate receiving portion 25 and the second upper edge portion, and the lid backing plate receiving portion 25 and the third upper edge portion 6C. And sandwiched between. With this configuration, when the connection lid member 21 is subsequently covered, the lid backing plate 22
Does not escape, and the connection lid member 21 can be easily attached. In particular, when these ducts D are laid in the vertical direction, the connector main body 20 may be attached so that the groove 26 of the lid backing plate receiving portion 25 opens upward. In this case, since the female screw member n of the lid backing plate 22 is locked in the groove portion 26, when the connection lid member 21 is put on, the lid backing plate 22 does not drop and the connection lid member 2
1 can be attached efficiently.

The connection lid member 21 is placed over the upper surface of the second lid member 5B and the upper surface of the third lid member 5C.
The connecting lid member 21 and the lid backing plate 22 are located on a straight line passing through the vicinity of the center of the plane of the connecting lid member 21 and perpendicular to the pipe direction X.
And a mounting hole 21A for connection between Attachment holes 22A are also provided at similar positions on the lid backing plate 22, and male screw members N are passed through the attachment holes 21A and 22A, and female screw members n provided inside the lid backing plate 22 are provided. By screwing, the connection lid member 21 and the lid backing plate 22 are attracted, and the second lid member 5B and the third lid member 5C are sandwiched. In addition, as shown in FIG. 5, a counterbore 27 is provided in the mounting hole 21A of the connection lid member 21, and a dish-shaped head is used as the male screw member N. With this configuration, it is possible to prevent the head of the male screw member N from protruding from the surface of the connection lid member 21. further,
As shown in FIG. 3 and FIG. 4, in the peripheral portion of the connection lid member 21, on the back side of the two sides along the direction perpendicular to the pipe direction X, rainwater is prevented from entering the inside of the duct D. Each is provided with a sealing member 28. The seal member 28 is
It can be made of the same material as that provided on the connector body 20.

Although not shown, the second duct D
A leg member for mounting both ducts D2 and D3 is usually attached to a connection portion between the second duct D3 and the third duct D3. By the leg member, both ducts D2 and D3 can be piped away from the floor, and the upper surface of the leg member has a bottom member of the second duct D2 and a bottom member 4C of the third duct D3. The connection portion also has a function as a bottom cover member of the connection portion.

As described above, if the connection duct of the present invention is used, the first duct D1 and the second duct D2 can be connected so that the distance between them can be adjusted. Moreover, the connection duct is connected to the first duct D1 and the second duct D
Since it is mounted so as to be fitted to the outside of the duct 2, the piping space inside the duct D is not damaged.

[Alternative Embodiment] In the above embodiment, the bottom member is provided in each of the ducts D. However, the present invention is not limited to this embodiment. The function of the connection duct is not affected at all.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a duct connection portion using a connection duct of the present invention.

FIG. 2 is a partially assembled perspective view of a duct connector.

FIG. 3 is a longitudinal sectional view of a third duct.

FIG. 4 is a longitudinal sectional view of a connection fixing portion between a second duct and a third duct.

FIG. 5 is an exploded longitudinal sectional view of a connection fixing portion between a second duct and a third duct.

FIG. 6 is a longitudinal sectional view of a connection lid member.

[Explanation of symbols]

 D1 first duct D2 second duct 2A first side wall member 2B second side wall member 2C third side wall member 3C receiving member 5A first lid member 5B second lid member 5C third lid member 6C third upper edge 11 notch 13A Edge of first lid member 14 Holder X Pipe direction

Claims (2)

[Claims] 1. A first duct having a pair of first side wall members and a first lid member detachably attachable to the pair of first side wall members, a pair of second side wall members, and the pair of first side wall members. A connection duct that is attached across the first duct and the second duct to connect a second duct having a second lid member detachably attachable to the two side wall members; And a pair of third side wall members connected by a receiving member, and a third lid member detachably attachable to the third side wall member. The pair of third side wall members A holding portion for holding an edge of the first lid member while allowing the first lid member to relatively move in the piping direction at one end side in the piping direction; At the other end in the direction, the third lid member is attached. And a notch that allows the first side wall member to be inserted inwardly between the holding portion and the third upper edge. A connection duct that is configured to be fitted to the outside. 2. A connection fixing portion for connecting and fixing with the second side wall member is provided at an end of the both end portions of the third side wall member where the third upper edge portion is provided. 2. The connection duct according to 1.