JP2002206685A - Double hole type pipe joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate insertion of a pipe periphery of a double hole pipe in inserting the pipe periphery and a partition plate of the double hole pipe to be aligned with the pipe periphery and pipe peripheral groove of a double hole type pipe joint, surely and easily fit the partition plate and a partition wall to each other, and facilitate joining work. SOLUTION: This joint is provided for joining to a double hole pipe. A joining part of the partition wall of the joint has at least two joining pieces, the surfaces of which are opposite to each other to be fitted to the partition plate of the double hole pipe, one joining piece is a long piece, and the other joining piece is a short piece. The end part of the long piece is positioned outside the pipe peripheral end face of the joint or the pipe peripheral end face of the joint. The central part in the cross direction of the long piece is formed to be projected from the pipe inside of the double hole pipe joint toward the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for joining a two-hole pipe in which one pipe has two pipes,
The inside of the joint pipe is divided into two pipes by a partition wall, and the joint portion of the partition wall has a two-piece joint piece of a long joint piece (long piece) and a short joint piece (short piece) whose surfaces are opposed to each other. Fittings and more
A two-hole pipe joint in which the end of the long piece is located on the same plane as the outer peripheral end face of the two-hole pipe joint or outside thereof, or a two-hole pipe in which the center of the long piece (the part inside the both ends) is convex. For joints.

[0002]

2. Description of the Related Art Conventionally, a two-hole pipe joint for connecting a two-hole pipe whose inside is divided into two pipes by a partition plate, as shown in FIG. Perforated tube (not shown)
And a partition wall 53 that divides the conduit of the two-way pipe joint 50 into two conduits, and a main pipe 51 that communicates the two-directional joint pipes. Two joint pieces 55a, 55a of the same length for fitting a partition plate of a two-hole pipe (not shown) are provided in the joint portion 54 of the wall 53 with their surfaces facing each other. The two-hole pipe joint 50 formed such that the distal end of the pipe 55a is located on the same plane as the joint end (pipe peripheral end face 50a) of the joint pipes 52, 52, and
No. 000-120966 discloses a two-hole pipe joint 6
As shown in FIG. 0, the ends of two joint pieces 65a, 65a of the same length, which are provided with the surfaces facing each other, are joined to the joint portion 64 of the partition wall 63 fitted with the partition plate of the two-hole tube (not shown). Both joint pipe 62,
A two-hole pipe joint 60 (FIG. 27) formed so as to be located inward from a joint end (pipe peripheral end face 60 a) of the pipe periphery of 62 is known.

[0003]

Generally, a two-hole pipe joint comprises a joint pipe into which a two-hole pipe is inserted when joining the two-hole pipe, a main pipe communicating with the joint pipe, and a two-hole pipe joint. And a partition wall for dividing into two pipelines. An example of the above prior art (FIG. 2)
In 6), the two-hole pipe joint 50 is provided with a pipe groove for inserting the pipe part of the two-hole pipe between the widthwise end of the partition wall 53 and the pipe inner wall 52a of the joining pipe 52. The partition wall 53 is provided with a partition groove 55 for fitting a partition plate of a two-hole pipe, which is made up of joining pieces 55a, 55a of the same length whose surfaces are opposed to each other. At this time, it is necessary to insert the pipe circumferential portion of the two-hole pipe so as to match the pipe circumferential groove of the two-hole pipe joint 50 and the partition plate so as to match the partition groove 55 of the two-hole pipe joint 50, respectively. Pipe peripheral end face 50a of perforated pipe joint 50 and partition wall 5
If the end of No. 3 (that is, the end of the joint piece) is located on the same plane, this operation involves considerable difficulty.

[0004] Therefore, in order to make it easy to insert the two-hole pipe into the two-hole pipe joint, the joint end of the partition wall fitted with the partition plate (that is, the tip of the joint piece of the same length whose surfaces are opposed to each other) is formed in the two-hole pipe. A method of positioning the joint inside the pipe peripheral end face (Fig. 27) was also implemented. However, although the two-hole pipe joint of the above method can also improve the insertion work of the pipe circumference, the fitting position between the partition plate and the partition wall becomes deep inside the pipe, so that it becomes impossible to visually check the fitting and it is difficult to match the fitting. Was.

In addition, in any of the above-mentioned conventional methods, the distance between the partition grooves (the distance between the surfaces of the joining pieces facing each other) is narrow, so that it is difficult to apply the adhesive to the partition grooves, and the inner surface of the partition groove (the joining piece). However, there is a problem in that the contact resistance is increased due to the large contact area between the surfaces facing each other) and the partition plate, resulting in poor bonding workability.

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention facilitates fitting of a partition plate and a partition wall when joining a two-hole pipe and a two-hole pipe joint, and facilitates insertion of a pipe periphery, and furthermore, joining. An object of the present invention is to provide a two-hole pipe joint for making the entire operation reliable and easy and for facilitating the bonding operation.

[0007]

In order to solve the above-mentioned problems and achieve the object of the present invention, a two-hole pipe joint according to the first aspect of the present invention has a pipe inside which is divided into two pipes by a partition plate. A joint for joining with a perforated pipe, wherein a joint portion of a partition wall that divides the inside of the joint pipe into two pipes has at least two joint pieces whose surfaces face each other so as to be fittable with the partition plate. One of the joining pieces is a long piece, and the other joining piece is a short piece.

[0008] By joining the two-hole pipe to the two-hole pipe joint, the fitting of the partition plate and the partition wall is facilitated, and the pipe of the two-hole pipe to the two-hole pipe joint is easily joined. It is possible to provide a two-hole pipe joint for facilitating the insertion of the circumference, and thereby ensuring and facilitating the entire joining operation, and further facilitating the bonding operation.

Further, the two-hole pipe joint according to claim 2 is characterized in that the end of the long piece is located on the same plane as the pipe peripheral end face of the joint or outside the pipe peripheral end face. With the two-hole pipe joint having the above-described configuration, the end of the long piece is located on the same plane as the peripheral end face of the joint or outside the peripheral end face of the pipe, so that the partition plate of the two-hole pipe can be extended to the length of the two-hole pipe joint. When inserting between the piece and the short piece, the long piece is used as a guide to facilitate insertion, and the situation with the short piece of the partition plate of the two-hole tube on the long piece can be visually checked, so the work at the time of insertion is further improved Performance can be improved.

Further, the two-hole pipe joint according to a third aspect is characterized in that the central portion in the width direction of the long piece is convex toward the outside. Since the central portion of the long piece is outwardly convex due to the two-hole pipe joint having the above configuration, when the two-hole pipe is inserted into the two-hole pipe joint, the circumference of the two-hole pipe becomes two-hole. The two-hole pipe can be more smoothly inserted into the two-hole pipe joint without contacting the joint piece of the pipe joint.

Further, the two-hole pipe joint according to a fourth aspect is characterized in that a rib is provided on the back surface of the opposing surfaces of the two joining pieces. With the two-hole pipe joint having the above configuration, the thickness can be reduced without deteriorating the strength of the joint piece, and the gap between the two joint pieces can be prevented from becoming narrow. Thereby, when the partition plate of the two-hole tube is inserted between the two joining pieces, the workability can be further improved.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a case where two-hole pipes to be connected to each other or a two-hole pipe and a pipe other than the two-hole pipe are linearly connected,
When connecting at an appropriate angle such as a right angle or a semi-right angle depending on circumstances, various forms of a two-hole pipe joint can be selected. Also, various shapes and arrangements can be selected for the shape and installation of the joint of the partition wall of the two-hole pipe joint depending on the convenience of construction and the like. Hereinafter, an embodiment of the two-hole pipe joint of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side sectional view showing a state in which an L-shaped two-hole pipe joint 10 and a two-hole pipe 20 according to one embodiment of the present invention are joined.
FIG. 2 is a perspective view of the L-shaped two-hole pipe joint 10 shown in FIG. 1, FIG. 3 is a front view of the two-hole pipe joint 10 shown in FIG. FIG. 4 is a perspective view of a seal member 30 fitted into a pipe circumferential groove 17 and a partition groove 15 shown in FIG.

The two-hole pipe joint 10 shown in FIG. 1 is for connecting the two-hole pipes 20 to be connected to each other at a right angle, and the two-hole pipes 20 to be connected to each other are inserted. Pipes 12 and 12, a main pipe 11 for connecting the joined pipes 12 and 12 at right angles, and a partition wall 13 for dividing the two-hole pipe joint 10 into two conduits.

Each of the joint pipes 12 and 12 connected via the main pipe 11 forms a part of the two-hole pipe joint 10 formed integrally with the main pipe 11 and is inserted thereinto. One of the two-hole tubes 20 and the other
Is a part that communicates through In FIG. 1, both pipes communicated by the two-hole pipe joint 10 are both two-hole pipes, but the present invention restricts the other pipe which should communicate with one of the two-hole pipes 20 to the two-hole pipe. Instead, instead of the other two-hole tube 20 in FIG. 1, a tube having another desired shape such as a single-hole tube or a four-hole tube may be used as the case may be.

At the boundary between the joined pipe 12 and the main pipe 11, a portion where the inner peripheral wall 11a of the main pipe projects inward from the inner peripheral wall 12a of the joined pipe is entirely or partially formed around the pipe. And a step 16 is formed. When the two-hole pipe 20 is inserted, the step 16 between the inner peripheral wall 11a of the main pipe and the inner peripheral wall 12a of the joining pipe abuts on the two-hole pipe 20 to serve as a stopper. According to FIG. 3, in the front view of the two-hole pipe joint 10, a step is provided on the inner wall in four directions of up, down, left and right, but if it has a stopper function, it has another different arrangement and shape. Is also good.

The partition wall 13 shown in FIG. 1 has a position substantially at the pipe axis (center of the pipe diameter) of the two-hole pipe joint 10 in a side cross section.
The L-shaped plate-shaped plate is bent at a right angle, and both ends in the plate width direction are integrally joined to the inner peripheral wall 11a of the main pipe (that is, the inner wall of the two-hole pipe joint 10). Therefore, the two divided pipelines are surrounded by the inner wall of the two-hole pipe joint 10 and the partition wall 13, and are each a blocked and separated pipeline. Further, in the joint pipe, an interval slightly larger than the thickness of the pipe of the two-hole pipe 20 is formed between the inner peripheral wall 12a of the joint pipe and both ends in the width direction of the partition wall 13 with the step 16 as a groove bottom. The pipe circumference of the two-hole pipe is inserted into the pipe circumference groove 17 to fit the circumferences of the two-hole pipe joint 10 and the two-hole pipe 20 together.

Further, in the joining pipe, the partition wall 13 is divided into two joining pieces, a long piece 15a and a short piece 15b, whose surfaces are provided substantially parallel to each other with a space slightly larger than the thickness of the partition plate 23. A partition groove 15 is formed in the wall thickness portion of the partition wall 13 by the piece 15a and the short piece 15b. And two-hole pipe 2
0 is inserted into the partition groove 15 and the partition plate 23
And the partition wall 13 are fitted. The position of the joining end of the long piece 15a shown in FIG. 1 is the same as that of the pipe peripheral end face 10a of the two-hole pipe joint. If it is located outside the pipe peripheral end face 10a of the two-hole pipe joint, when the partition plate 23 is inserted into the partition groove 15, the long piece 15a acts as a guide so that workability is improved. Excellent. The joining end of the long piece 15a shown in FIG. 2 is constant in the width direction,
There is no need to make the joining ends of the long pieces 15a uniform,
The central portion of 5a (the portion inside from both ends) may be convex, such as semicircular or trapezoidal.

Further, when the two-hole pipe 20 and the two-hole pipe joint 10 are fitted with each other, if the sealing material 30 is provided over the pipe circumferential groove 17 and the partition groove 15, the wetting from the two pipe paths is prevented. In addition, according to FIG. 4, the sealing material 30 has a substantially I-shape, but may have another shape depending on the embodiment.

When the sealing material 30 is not required, the step 16 and the groove of the pipe circumferential groove 17 and the partition groove 15 may be flush with each other, but as shown in FIG. 1 or FIG. In the case where the material 30 is provided, if the depth of the groove bottom of the pipe circumferential groove 17 and the partition groove 15 is made deeper than the position of the stopper (step) (that is, the depth of the pipe deep into the main pipe), the seal is formed. It is excellent in prevention of detachment of the material, and the sealing becomes better.

Further, according to FIGS. 1 and 3, a part of the inner peripheral wall 11a of the main pipe extends beyond the position of the step 16 formed at the boundary between the junction pipe 12 and the main pipe 11 and extends into the junction pipe. A piece 11b is provided. The inner wall piece 11b
Is a part of the inner peripheral wall 11a of the main pipe extended to the joint pipe 12;
Can be protected so that the sealing material 30 does not come off when fitting. Further, as shown in FIG. 1, the shape and length of the inner wall piece 11b are such that the inner peripheral wall 11a of the main pipe at least near the partition wall is extended to form the inner wall shape of the main pipe (in the cross section of the pipe).
While maintaining the above, the desired length and shape may be selected according to the implementation situation. In some cases, without being limited to the inner wall shape of the main pipe, both ends of the partition wall 13 are replaced with inner wall pieces 11b formed by extending the inner wall 11a of the pipe as in the conventional example shown in FIG. A curved plate extending in the circumferential direction of the pipe may be used, but the inside of the pipe becomes narrow at a portion where the curved plate is provided, which is not preferable in terms of work.

Further, as shown in FIGS. 5 to 7, if the above-mentioned inner wall pieces and curved plates are not required, they may not be provided.
FIG. 5 is a side sectional view of an embodiment of the present invention in which the inner wall piece and the curved plate are not provided. FIG. 6 is a perspective view of FIG.
FIG. 6 is a front view of FIG. 5.

The configuration provided in the embodiment of the present invention has been described above. Next, the two-hole pipe 20 and the two-hole pipe joint 1 will be described.
The method of fitting 0 will be described with reference to FIG.
When joining the two-hole pipe 20 and the two-hole pipe joint 10, the sealing material 30 is previously fitted into both the partition groove 15 and the pipe circumferential groove 17; The sealing material 30 may be fitted beforehand, or may be fitted at the work site. When the sealing material 30 is inserted, the inner peripheral wall 11a of the main pipe extends to the joint pipe 12 with a configuration including a pipe peripheral groove 17 and a partition groove 15 having a depth that is deep inside the main pipe. The configuration having the inner wall piece 11b is effective for preventing the displacement of the sealing material 30.

Next, the outer peripheral surface of the end of the two-hole pipe 20, the front and back surfaces of the partition plate 23, the inner peripheral wall 12a (inner peripheral surface) of the joined pipe of the two-hole pipe joint 10, the long piece 15a and the short piece 15b are surrounded. After the adhesive is applied to the inner surface of the partition groove 15, first, the partition plate 23 of the two-hole pipe 20 is placed on the long piece 15a (joint piece) of the joint part 14 of the partition wall 13 of the two-hole pipe joint 10. , Double-hole tube 2
0 is visually fitted to the inner circumference of the two-hole pipe joint 10 and inserted. Further, the partition plate 23 of the two-hole pipe 20 is
The partition groove 1 formed in the wall thickness portion of the partition wall 13 by the joint piece of the long piece 15a and the short piece 15b of the joint portion 14 of the partition wall 13
5 and a pipe hole 22 formed so that the pipe circumference 22 of the two-hole pipe is fitted into the pipe circumferential groove 17 formed between the pipe circumference of the two-hole pipe joint 10 and both ends in the width (pipe diameter) direction of the partition wall 13. The procedure is performed by pushing the entire pipe 20 into the two-hole pipe joint 10.

In the above-mentioned fitting method, the seal material 30 may be made of any of an organic or inorganic material, and the shape can be formed according to the shape of the partition groove 15 or the pipe circumferential groove 17. If unnecessary, the seal member 30 may not be used. However, by fitting the seal member 30, it is possible to satisfactorily prevent fluid leakage from adjacent pipes of the two-hole tube. Also, when applying an adhesive to the inner surface of the partition groove 15 of the joint pipe 12 of the two-hole pipe joint 10, the gap between the inner surfaces of the partition groove 15 is often small and work is difficult. Since one piece is a short piece, the exposed surface of the long piece of the other piece (the surface corresponding to the inner surface of the partition groove) can be easily visually observed, so that the entire inner surface of the partition groove 15 can be easily adhered. An agent can be applied. In addition, since one of the joining pieces is a short piece, the space in the pipe is slightly widened, and the adhesive is somewhat easily applied to the inner peripheral wall 12a (inner peripheral surface) of the joining pipe facing the joining piece portion having no short piece. Can be applied.

When the two-hole pipe 20 and the two-hole pipe joint 10 are fitted, the long piece 15a of the partition wall 13 of the two-hole pipe joint 10 is inserted.
Can be easily visually observed, so that the partition plate 23 of the
Can easily be mounted on the long piece 15a of the partition wall 13 of the two-hole pipe joint 10, and furthermore, the partition wall 13 of the partition plate 23 can be mounted.
Of the two-hole pipe 20 into the pipe circumferential groove 17 of the two-hole pipe joint 10 is smoothly performed by using the joining piece of the long piece 15a below (in a mounted state) as a guide. The circumference can be easily fitted. Furthermore, the long piece 15a
If the (joining piece) is located outside the pipe peripheral end face 10a of the two-hole pipe joint 10, visual observation becomes easier and the guide is more effective. If the central portion of the long piece 15a is convex toward the outside of the pipe, the pipe circumference of the two-hole tube 20 is unlikely to abut on the long piece 15a, and the partition plate 23 is placed on the long piece 15a. Work becomes easier.

In the present embodiment shown in FIGS. 1 to 3, the joining piece of the partition wall 13 of the two-hole pipe joint 10 is such that the joining piece of one joining portion 14 at both ends of the partition wall 13 is long in the same pipeline. The joining piece of the other joining portion 14 is a short piece, but is not limited thereto. As shown in FIG. 5, as shown in FIG. The joining pieces of the joining portions 14 at both ends in the direction (pipe length direction) are short pieces,
In the other same conduit, the joining pieces of the joining portions 14 at both ends in the pipe axis direction of the partition wall 13 may be long pieces.

The present embodiment shown in FIGS.
The two-hole pipe joint 10 connects the two-hole pipes 20 to each other in an L-shape (substantially right angle). However, the connecting angle need not be limited to this, and as shown in FIG. It may be a two-hole pipe joint 10 in which the 20s are connected in a substantially rectangular shape.

The embodiment shown in FIG. 1 to FIG.
The two-way pipe joint 10 is a two-way pipe joint 10 for connecting two-hole pipes 20 connected from two directions of the same diameter and coaxial communication. The present invention relates to the number and diameter of pipes to be connected, The shaft does not need to be limited to this, and it is sufficient if the joint is a joint in two or more directions and can be joined to at least one two-hole tube 20. As shown in FIG. May be a three-way two-hole pipe joint for connecting a two-hole pipe to another two-pipe body, or these three-way pipe bodies may have a connection form of pipes of different diameters and different axes. .

Each of the embodiments shown in FIGS. 1 to 3 and FIGS. 5 to 9 is an example in which the connection direction between one two-hole tube and the other tube is changed. As shown in FIG. 13, one two-hole pipe and the other pipe to be connected to each other may be coaxial and linear.

FIG. 10 shows a socket-like structure in which pipes from two sides are communicated in a straight line. The two-way pipe and the other pipe to be connected to each other are coaxially and linearly connected to each other. It is a sectional side view of the two-hole pipe joint of an Example of an embodiment. In the two-hole pipe joint 10 shown in FIG. 10, the main pipe 11 is made short,
Such a configuration only needs to be functionally effective, and is excellent for weight reduction.

FIG. 11 shows a two-hole pipe joint 1 shown in FIG.
It is a front view which faces the 0 hole. According to FIG. 11, when viewed from the front, the shapes of the inner peripheral wall of the joint pipe of the two-hole pipe joint 10 and the main pipe, the peripheral groove 17 and the partition groove 15, and the center laterally long fitting into these grooves are long. The sealing material 30 and the inner wall piece 11b, the long piece 15a, and the short piece 15b surrounding it are shown.

FIG. 12 shows a two-hole pipe joint 10 for connecting one side of the two-hole pipe 20 and the other two-hole pipe 20 to be connected in a coaxial and linear manner. The two holes according to another embodiment of the present invention are located outside the peripheral end face 10a, and the ends of the long pieces 15a have a linear shape in the width direction, but the ends of the short pieces have a gentle arc shape. It is a perspective view which shows the form of the partition wall of a pipe joint.

FIG. 13 shows a two-hole pipe joint 1 shown in FIG.
0, the end of the long piece 15a is
FIG. 10 is a perspective view showing a form of a partition wall according to another embodiment of the present invention in which a central portion of a long piece 15a is located outside of the pipe peripheral end face 10a of the present invention, but a central portion of a long piece 15a is convex. . More specifically, in FIG. 13, the long piece 15a has a trapezoidal shape in which both ends in the pipe diameter direction of the joining piece are cut off.
The end of a (joining piece) may have an outwardly convex shape such as an arc, a semicircle, a dish, or a trapezoid. In addition, due to the state of construction, the end of the long piece 15a may be located inside the peripheral end face of the pipe. In this case, although it is effective for insertion of the pipe circumference, it is effective to insert the partition plate. Inferior as a guide.

The long piece 15 shown in FIGS.
Each of the joined pieces of the short piece 15a and the short piece 15b is one piece, but any of the joined pieces of the long piece and the short piece can be divided into a plurality of pieces. In addition, the protection of the sealing material is achieved by a curved plate 53a, which is formed by bending both side ends of a partition wall in the circumferential direction, which is implemented in the prior art.
63a may be used, but it is not preferable because the inside of the pipe becomes narrow at the portion where the curved plate is provided. As in the embodiment of the present invention shown in FIG. 12 and FIG. If the inner wall piece is formed by extending the inner wall of the main pipe into the joint pipe while maintaining the inner wall shape of the pipe, the bonding operation is further improved.

If unevenness in the pipe length direction or unevenness in the pipe circumferential direction (including a ring shape or a semicircular shape) is provided on the whole or a part of the outer surface of the two-hole pipe joint 10, slippage during handling is prevented,
Handling work becomes easy.

The embodiments shown in FIGS. 1 to 3 and FIGS. 5 to 9 and FIGS. 10 to 13 are all examples in which the long piece 15a and the short piece 15b, which are the joining pieces, are formed in a flat plate shape. For example, as shown in FIGS. 14 to 17, 18 to 21, and 22 to 25, a reinforcing rib 41 may be provided on the joining piece. FIG. 14 is a two-hole pipe joint for connecting one two-hole pipe and the other pipe to be connected to each other coaxially and in a straight line, and has another embodiment of the present invention having a reinforcing rib 41 on a joint piece. FIG. 3 is a side sectional view of the two-hole pipe joint according to FIG. 15 is a front view of the two-hole pipe joint 10 shown in FIG. 14 facing the peripheral end face of the pipe, FIG. 16 is a perspective view of the two-hole pipe joint 10 shown in FIG. 14, and FIG. 17 is shown in FIG. It is a fracture | rupture perspective view which fractures | ruptures and shows the two-hole pipe joint 10. FIG.

A long piece 15a and a short piece 15b forming a joining piece
A plurality of (for example, three) reinforcing ribs 41 extending in the pipe length direction are provided on the respective surfaces (surfaces facing the inner peripheral wall 12a) of the opposite surfaces (surfaces corresponding to the inner surfaces of the partition grooves 15). ,
, 41 are provided. Thereby, the thickness dimension can be reduced without impairing the strength of the joint piece,
It is possible to contribute to weight reduction and to prevent the interval between the long piece 15a and the short piece 15b from being narrowed,
The workability when inserting the partition plate 23 of the two-hole tube 20 between the short piece 15b and the short piece 15b can be improved. In addition, main 1
1 has a plurality of cutouts 4 along the circumferential direction of the pipe.
,..., 42 are provided.
.., 42 prevent slippage during handling of the two-hole pipe joint 10 and facilitates handling.

In the two-hole pipe joint 10 shown in FIGS. 14 to 17, the pipe circumferential groove 17 and the groove bottom 15 of the partition groove 15 are formed.
The depth of c is greater than the position of the stopper (step 16), and the inner wall piece 11b as shown in FIGS. 1 to 3 is omitted. In addition, the joint piece of the partition wall 13 of the two-hole pipe joint 10 is one of the two ends of the partition wall 13 in the same pipeline.
One joining piece is the long piece 15a and the other joining piece is the short piece 1
5b.

FIG. 18 shows a three-way two-hole pipe joint for connecting a one-tube two-hole pipe to another two-tube pipe, which has a reinforcing rib 41 on a joint piece. FIG. 19 is a side sectional view of the two-hole pipe joint according to the embodiment of FIG. 19, FIG. 19 is a front view of the two-hole pipe joint 10 shown in FIG. 18 facing the pipe peripheral end face, and FIG. 20 is the two-hole pipe joint shown in FIG. FIG. 21 is a perspective view of FIG. 10, and FIG. 21 is a cutaway perspective view of the two-hole pipe joint 10 shown in FIG. In the two-hole pipe joint 10, for example, pipes in three directions are connected to pipes having different diameters and different axes.

FIG. 22 is a side sectional view of an L-shaped two-hole pipe joint according to another embodiment of the present invention, which has a reinforcing rib 41 on a joint piece. 23 is FIG.
FIG. 24 is a front view of the two-hole pipe joint 10 shown in FIG. 2 facing the pipe peripheral end face, FIG. 24 is a perspective view of the two-hole pipe joint 10 shown in FIG. 22, and FIG. It is a fracture | rupture perspective view shown by fracture | rupture. In addition, for example, FIGS.
, 42 provided in a part of the outer surface of the main pipe 11 may be formed into an appropriate shape according to the work content of the work of handling the two-hole pipe joint 10.

In the two-hole pipe joint 10 shown in FIGS. 14 to 25, a plurality (for example, 3
, 41 are provided, but the extending direction of these reinforcing ribs 41, ..., 41 may be any direction, or only a single reinforcing rib 41 may be provided.

[0042]

As described above, the two-hole pipe joint according to the first aspect of the present invention, when joining the two-hole pipe to the two-hole pipe joint, is used to join the two-hole pipe partition plate and the two-hole pipe joint. The effect of facilitating the fitting and matching of the partition walls, facilitating the insertion of the perimeter of the two-hole pipe into the two-hole pipe joint, and also facilitating the bonding work between the two-hole pipe and the two-hole pipe joint To play. Furthermore, in the two-hole pipe joint according to the present invention, the end of the long piece (joining piece) is located on the same plane as the pipe peripheral end face of the two-hole pipe joint or outside the pipe peripheral end face. When inserting the partition plate of a two-hole tube into the partition groove between the long piece and the short piece, the long piece is used as a guide to facilitate the insertion and the long piece can be visually checked, so that the secure mating can be easily performed As a result, an effect that is more excellent in workability is achieved.
Furthermore, in the two-hole pipe joint of the present invention described in claim 3, the central portion (the portion inside the both ends) of the long piece (joining piece) is convex, so that when inserting the two-hole pipe, There is an effect that the circumference of the two-hole tube can be more smoothly inserted. further,
According to the four-hole pipe joint of the present invention as set forth in claim 4, since the joining piece is provided with the reinforcing rib, the thickness dimension can be reduced without impairing the strength of the joining piece. Can be prevented from becoming narrower between the joint pieces. Thereby, when the partition plate of the two-hole tube is inserted between the two joining pieces, the workability can be further improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view in the pipe axis direction showing a joint state between an L-shaped two-hole pipe joint and a two-hole pipe according to one embodiment of the present invention.

FIG. 2 is a perspective view of the two-hole pipe joint shown in FIG.

FIG. 3 is a front view of the two-hole pipe joint shown in FIG. 1;

FIG. 4 is a perspective view of the sealing material shown in FIG. 3;

FIG. 5 is a side sectional view of another embodiment of the L-shaped two-hole pipe joint of the present invention.

FIG. 6 is a perspective view of the two-hole pipe joint shown in FIG. 5;

FIG. 7 is a front view of the two-hole pipe joint shown in FIG. 5;

FIG. 8 is a perspective view of a semi-perpendicular two-hole pipe joint according to another embodiment of the present invention.

FIG. 9 is a perspective view of a three-way two-hole pipe joint according to another embodiment of the present invention.

FIG. 10 is a side sectional view of a two-hole pipe joint for joining linearly according to another embodiment of the present invention.

FIG. 11 is a front view of the two-hole pipe joint shown in FIG. 10;

FIG. 12 is a perspective view of a partition wall in another embodiment of the two-hole pipe joint shown in FIG.

FIG. 13 is a perspective view of a partition wall in another embodiment of the two-hole pipe joint shown in FIG.

FIG. 14 is a side sectional view of a two-hole pipe joint having a reinforcing rib according to another embodiment of the present invention.

FIG. 15 is a front view of the two-hole pipe joint shown in FIG.

FIG. 16 is a perspective view of the two-hole pipe joint shown in FIG. 14;

17 is a cutaway perspective view showing the two-hole pipe joint shown in FIG.

FIG. 18 is a side sectional view of a three-way two-hole pipe joint having a reinforcing rib according to another embodiment of the present invention.

FIG. 19 is a front view of the two-hole pipe joint shown in FIG. 18 facing a pipe peripheral end face;

FIG. 20 is a perspective view of the two-hole pipe joint shown in FIG. 18;

21 is a cutaway perspective view showing the two-hole pipe joint shown in FIG.

FIG. 22 is a side sectional view of an L-shaped two-hole pipe joint having a reinforcing rib according to another embodiment of the present invention.

FIG. 23 is a front view of the two-hole pipe joint shown in FIG.

FIG. 24 is a perspective view of the two-hole pipe joint shown in FIG. 22.

25 is a cutaway perspective view showing the two-hole pipe joint shown in FIG.

FIG. 26 is a side sectional view of a two-hole pipe joint according to an example of the related art.

FIG. 27 is a side sectional view of a two-hole pipe joint according to another example of the related art.

[Explanation of symbols]

 10, 50, 60 Double-hole pipe joint 10a, 50a, 60a Pipe peripheral end face 11, 51, 61 Main pipe 11a, 51a, 61a Main pipe peripheral inner wall 11b Inner wall piece 12, 52, 62 Joint pipe 12a, 52a, 62a Inner peripheral wall of joint pipe 13, 53, 63 Partition wall 14, 54, 64 Joint 15, 55, 65 Partition groove 15a, 55a, 65a Long piece or joint piece 15b Short piece 15c, 55c, 65c Groove bottom 16, 56, 66 Step 17 Pipe circumferential groove 20 Two-hole pipe 23 Partition plate 30 Sealing material 41 Reinforcement rib 42 Notch 53a, 63a Curved plate

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazuya Yoneda 2-12-10 Shiba-Daimon, Minato-ku, Tokyo Inside A & A Materials Co., Ltd. No. F-term in A & A Materials Co., Ltd. (reference) 3J106 AA01 AB01 BA01 BB04 BB07 BC06 BD01 BE29 DA01

Claims (4)

[Claims] A joint for joining a two-hole pipe divided into two pipes by a partition plate inside the pipe, wherein a joint of a partition wall that divides the inside of the pipe of the joint into two pipes is formed by the partition. A two-hole pipe joint, comprising at least two joint pieces whose surfaces are opposed to each other so as to be fittable with a plate, one of which is a long piece and the other of which is a short piece. 2. The two-hole pipe joint according to claim 1, wherein an end of the long piece is located on the same plane as a pipe peripheral end face of the joint or outside the pipe peripheral end face. 3. The two-hole pipe joint according to claim 1, wherein a central portion of the long piece in a width direction is convex outward. 4. The two-hole pipe joint according to claim 1, wherein a rib is provided on the back surface of the opposing surfaces of the two joining pieces.