JP2652329B2 - A small-sized PVC-made caliber that can be installed in extremely narrow ground - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-diameter PVC muffler which can be installed in a very small area.

[0002]

2. Description of the Related Art As is well known, an inversion bureau is installed at a junction of drain pipes to check and clean the drain pipes.

[0003] By the way, with the narrowing of residential land and the use of PVC pipes for drainage pipes, PVC small-diameter trusses having a small-diameter check tube are widely used (for example, Japanese Utility Model No. 2-45350).
And Japanese Utility Model Publication No. 3-29672).

[0004] Such a small-diameter PVC sculpture is characterized by the following features: 1) it does not take up a lot of residential land space, does not impair the aesthetic appearance, 2) reduces the cost, 3) is fast in construction, and has the same excavation width as the pipeline. It has the feature that it can be constructed with.

[0005] Such a small-diameter PVC sculpture is formed using a PVC Y-joint, DT joint, LT joint, or the like. A Y-joint type small diameter squeeze that joins a drain pipe buried in residential land will be described.

In FIG. 6, upper and downstream ports 3, 3 are provided on a main shaft a of the main body 1, and the main flow pipe 2 buried in the residential land is connected to these ports 3 by TS joining (Taper). Si
ge joint), and 45 ° upstream with respect to the main shaft a.
A branch pipe receiving port 4 is provided on the inclined sub shaft b. A horizontally arranged distribution pipe 5 is connected to the distribution pipe receiving port 4 via an increaser (not shown). In addition, the main body 1 is provided with a small-diameter inspection tube receptacle 6 on the ground surface side orthogonal to the main shaft a.
It is S-joined and stands upright.

[0007] A first elbow (or bend) 8, a vertical pipe 9 and a second elbow (or bend) 10 are connected to the diversion pipe 5 so that drainage from a washroom on the floor or the like flows. I have.

In the Y-joint type small-diameter masque, the main flow pipe 2 and the vertical pipe 9 reduce the size of the branch pipe 5 to a minimum, and directly join the branch pipe receiving port 4 and the first elbow 8 to the receiving port. Even if it does so, since it is a Y type, the distance d remains, and therefore, the advantage that it can be constructed with the same excavation width as the pipeline, which is one of the features of the small-diameter masquerade, cannot be sufficiently exhibited.
As shown in (1), TS bonding in a very small land where the building 11 is close (after thoroughly wiping the receiving port and the spigot with a rag or the like, applying an adhesive, immediately inserting and bonding, and allowing to stand for 10 to 30 seconds There was a complaint that the work to be carried out was difficult.

Therefore, in order to eliminate such a complaint, a small-diameter pipe is provided at both ends on the main shaft of the main body, which is connected to the main flow pipe, and a downstream port is provided at each end of the main body. In the meantime, the branch pipe receiving port is formed in the same direction as the main stream pipe receiving port on the upstream side so as to be parallel to the main axis.
A proposal has been made for a so-called parallel spar for a drop, in which a vertical tube is connected via an elbow (Japanese Patent Laid-Open No. 4-2).
09221).

[0010] The proposed parallel head for dropping head is said to further minimize the gap between the main body and the vertical pipe, thereby facilitating construction on narrow land. However, although the proposed parallelism for heads can be expected to achieve the above-mentioned effects in the construction of shunting pipes in extremely narrow grounds, the sewerage laying work is essentially a shunting pipe without a head, that is, a shunting pipe. Because the construction that does not stand up and the construction in a place that is not so narrow are overwhelmingly large, this oversized parallel can not be used as it is for such overwhelming construction, and a new 90 ° elbow is added (In this case, 90
(Only when there is room to add an elbow)), the use of the parallel head for this head must be stopped, and the LT joint type masque or Y joint type masque must be used as in the past. Therefore, there is a problem that the advantage of mass production is impaired because the parallel head for drop can be used only for extremely limited construction.

[0011]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve such a problem, and the gist of the invention is as follows: 1) An upper and a lower port are provided on a main shaft of a main body. , An inspection tube receptacle is provided on the ground surface orthogonal to the main shaft,
In the case of a small-diameter PVC made of a small-diameter PVC that can be installed on an extremely narrow ground with a branch pipe receiving port on one side of the main body, the cut-off point on the sub-shaft inclined 45 ° to the upstream side with respect to the main shaft is 4
A connecting port for a diversion pipe inclined at 5 ° is provided, and a 45 ° elbow that can be rotated forward and reverse within a range of 180 ° and has an elbow receiving port as the receiving port for the diversion pipe is connected to the connecting port for the diversion pipe. The direction of the receiving port is parallel or perpendicular to the main axis, and it is configured to have two types of small diameter squares.
2) The direction of the elbow receptacle is parallel, and the direction of the elbow is used for the head for drainage on the floor, and the direction of the elbow is orthogonal to the non-head for the drainage of the floor. Available in PVC small caliber masu.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail with reference to an embodiment shown in the accompanying drawings. FIG. 1 is an overall schematic plan view of an embodiment of the present invention, and FIG.
FIG. 3 is a detailed exploded view of a main part of FIG. 1, FIG. 4 is a detailed view of a main part of FIG. 1, and FIG. The same or equivalent parts in FIG. 6 are denoted by the same reference numerals and are omitted.

The small-diameter PVC sculpture of this embodiment has a mainstream pipe 2 buried in a residential area having a diameter of 75 ^{mm to} 150 ^mm ,
Is applied to the size of 100 ^mm φ ~ 200 ^mm φ,
In addition, this small-diameter masu is installed in a place where drainage from a washroom, a washing machine, a flush toilet, etc. installed on the floor joins the mainstream pipe 2 or a place where drainage downstairs joins the mainstream pipe 2. You can do it.

First, the overall outline of the small-diameter flask of this embodiment will be described. First, upper and downstream ports 3, 3a are provided on the main shaft a of the main body 1, and the main flow pipe 2 buried in the residential land is TS-joined to these ports 3, 3a. In addition, the main body 1 is provided with an inspection tube port 6 at right angles to the main shaft a on the ground surface side.
Is provided, and an inspection tube (see FIG. 6) is TS-bonded to the inspection tube. Here, a step c is formed at the bottom of each of the upper and downstream receiving ports 3 and 3a as shown in FIG. To match.
Therefore, the small caliber of this embodiment can be referred to as a mason with a tube bottom.

The main body 1 is provided with a sub-shaft b inclined at an angle of 45 ° to the upstream side with respect to the main shaft a, and a connection port 12 for a branch pipe is provided on the sub-shaft b. The cutout e of the branch pipe connection port 12 is inclined by 45 ° with respect to the main axis a. As shown in FIGS. 1 and 3, a 45 ° elbow (referred to as an elbow forming a 45 ° bend) 13 is rotatably connected to the branch pipe connection port 12. The 45 ° elbow 13 is rotated conically around the sub-axis b in the direction of arrow f in FIG.
Is made parallel to the main axis a as shown by a two-dot chain line in FIG. 1 or orthogonal as shown by a solid line.

Therefore, according to the small-diameter squeeze of this embodiment, the branch pipe 5 is connected to the main stream pipe 2 in parallel or orthogonally. Can be used in two ways, a small diameter masque that merges drainage downstairs by making the diversion pipe 5 horizontal, and it is overwhelmingly common to use both small diameter masquerades at the same time In the construction site, the types of materials to be brought in can be reduced.

Next, a description will be given of an example of use of the small-diameter truss of the present embodiment in the case where the existing drainage diversion pipe 15 below the floor cannot be moved in the pipe axis direction. 5A is a plan view, and FIG. 5B is a side view. In this use example, as shown in FIG. 5A, the main body 1, the 45 ° elbow 13, the first drainage pipe 15a and the If the second drainage pipe 15b is connected and laid and there is no room for the second drainage pipe 15b to move in the pipe axis direction, the connection is made in the following manner. That is, the first drainage diversion pipe 15a is TS-joined to the elbow receiving port 14 in advance, and the socket 16 is TS-joined to the second drainage diversion pipe 15b. Next, the second drainage pipe 15b is slightly bent as shown in FIG. 5B, and the first drainage pipe 15a is
By rotating at 5 ° elbow 13 so as to be separated from / adjacent to each other, and by TS joining and so that both axes are aligned by so-called engagement, connection can be made conveniently.

Next, the main part of the embodiment will be described in detail. The branch port connection port 12 and the 45 ° elbow 13 are
The connection is established via an O-ring 17 by pressure fitting utilizing resin deformation. In other words, four resin-deformable elbow-side tongues 18 are provided on the anti-elbow receiving side of the 45 ° elbow 13, and a locking flange 19 is provided over the entire outer circumference of the branch pipe connection port 12. The member 18 is pushed over the locking flange 19 and deformed until the contact portion 21 is fitted.

At the opening edge of the 45 ° elbow 13 where the tongue piece 18 on the elbow side is located, a notch 22 is provided over 180 °, and the step is provided on the outer periphery of the connection port 12 for the branch pipe.
The stopper projection 20 is made to be visible. Therefore, the 45 ° elbow 13 can rotate the branch pipe connection port 12 forward and reverse in a conical shape in the ground space within a range of 180 °, and the elbow socket 14 is parallel and orthogonal to the main shaft a as described above. Can be set with The stopper projections 20 are slightly shifted on the sub shaft b (in the case of the branch pipe connection port 12 having an inner diameter of 107 ^mm φ, 1 to
Shifting 2 ^mm), when directing the elbow socket 14 at right angles to the major axis a, the receptacle is slightly turned upward, so that to form a predetermined gradient in the tube bottom of the 45 ° elbow 13.
In addition, 23 in FIG. 1 shows a knob piece. Further, the case where a branch pipe having the same diameter as that of the main flow pipe port is connected to the branch pipe connection port 12 of the present embodiment has been described. However, the present invention is not limited to this. It is also possible to connect a flow dividing pipe in which the flow dividing pipes are integrally juxtaposed, or to provide a 45 ° elbow on the side opposite to the illustration.

[0020]

According to the present invention, a single-diameter shunt can be formed in a direction perpendicular to and parallel to the main axis of a single-diameter shunt. Can be used in two ways.
Not only can the type of material brought to the construction site be reduced, but it can also be mass-produced and produced inexpensively. Since the 45 ° elbow can be conically rotated within the range of 180 °, it can contribute to what is called a mating connection. When using a 45 ° elbow with the elbow socket orthogonal to the main axis, the countershaft is at 45 °, so compared to the conventional LT joint type small diameter square with a socket orthogonal to the main axis. However, the drainage flowing through the branch pipe and the drainage flowing through the main pipe do not flow back to each other. In order to lay a non-head diversion pipe perpendicular to the main shaft on a very narrow ground, the parallel head for head described in JP-A-4-209221 cannot be used as it is, and a 90 ° elbow is newly added or separately. Type LT joint type masu etc. must be used. However, the parallel joint for the head differs from the LT joint type square in the overall shape of the pipe bottom and the like, and if these are connected and used uniformly, the excavation depth and other construction accuracy will vary. However, with the small caliber masque of the present invention,
Since the same main body is used for heads and non-heads, construction accuracy is improved and construction is easy.

[Brief description of the drawings]

FIG. 1 is an overall schematic plan view of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of FIG.

FIG. 3 is a detailed exploded view of a main part of FIG. 1;

FIG. 4 is a detailed view of a main part of FIG. 1;

FIG. 5 is a diagram illustrating an example of use of the present embodiment.

FIG. 6 is a perspective view of a conventional example.

[Explanation of symbols]

1 ... mass body, 2 ... main flow pipe, 3,3a ... main flow pipe receptacle,
4, ... diversion pipe receptacle, 6 ... check pipe receptacle, 9 ... vertical pipe,
12: connection port for branch pipe, 13: 45 ° elbow, 14: elbow socket, a: main shaft, b: sub shaft, e: cut end

Claims (2)

(57) [Claims] Claims: 1. An upper and a downstream receiving port are provided on a main shaft of a main body, and a check tube receiving port is provided on a surface side of the main body orthogonal to the main shaft,
In a small-diameter PVC made of a small-diameter PVC that can be installed on a very narrow ground with a branch pipe receiving port on one side of the main body, the cut end is 45 ° on the sub-axis that is inclined 45 ° to the upstream side with respect to the main axis. An inclined diversion pipe connection port is provided, and the diversion pipe connection port can be rotated forward and reverse within a range of 180 °, and an elbow port is used as the diversion pipe port as a 45 ° port.
An elbow is connected, and the direction of the elbow receiving port is configured to be parallel or orthogonal to the main axis so as to be configured in two types of small caliber trusses. Caliber. 2. The elbow receptacle can be installed in a very narrow space as described in claim 1, wherein the direction of the elbow receiving port is parallel to the head for drainage flowing downstairs, and orthogonal to the non-headfall for draining drainage downstairs. PVC small caliber.