JPH0735193Y2 - Drainage vertical pipe fitting - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a joint for a drainage vertical pipe, and more particularly to a joint for a drainage vertical pipe in an apartment house.

[Conventional technology]

The drainage system of a multi-story apartment house is usually a so-called centralized drainage system in which vertical drainage pipes that penetrate through each floor are connected together with drainage branch pipes from each room. .

By the way, in the case of removing scales, scales, etc. accumulated in the drainage pipe in the above drainage system, conventionally, as shown in FIG. 6 (a), a drainage source 20 such as a sink or a washbasin
By inserting the cleaning tool 24 having a nozzle at the tip and washing with high pressure by jetting water, or as shown in FIG. 6 (b), from the cleaning opening 26 of the joint 23 'where the cleaning opening 25 is provided in advance. It was performed by inserting the cleaning tool 24.

[Problems of conventional technology]

However, in the former means shown in FIG. 6 (a), since the nozzle is inserted from the drainage source 20, the direction of the jetted water flow of the nozzle and the natural downward direction of the cleaning drainage are opposite and not only the cleaning efficiency is poor, but also The wash water may be blown back toward the drainage source 20.

Further, in the latter means shown in FIG. 6 (b), since the removed dirt and the like flows down through the lower drainage pipe as it is, it does not have the above-mentioned drawbacks, but on the other hand, during cleaning work, it is more likely that the upper floors When the wastewater of the above flows down, sewage may flow out from the cleaning port 26, which is a drawback that cleaning becomes very difficult.

In particular, when cleaning the inside of the horizontal pipe 22 by jetting high-pressure water, the high-pressure water may blow out vigorously from the cleaning port, which has the drawback of significantly contaminating the surroundings. Further, as shown in FIG. 7, when the joint 28 is provided with the trap 28, the high pressure washing water flows backward from the cleaning port 26 when the branch pipe 22 is cleaned because the water flow is blocked by the trap portion. May overflow.

On the other hand, a cleaning tool that goes inside the vertical pipe 21 beyond the trap 28
Since 24 can not be inserted, if you want to clean the inside of the vertical pipe 21, you have to provide a separate joint 29 for the cleaning port of the vertical pipe, and the backwash water easily flows out from the cleaning port 29 'part. Moreover, if there was a drainage flow from the upper floors during this cleaning, there was a problem that it would overflow to the outside.

[Problems to be solved by the device]

In view of the above drawbacks, the present invention can reliably prevent backflow spout accidents from the cleaning port even when sewage is flowing down or when cleaning with high-pressure water jets, and it is possible to perform cleaning, etc. under clean conditions. The purpose of the invention is to provide a vertical pipe joint.

[Technology for solving problems]

That is, in the drainage vertical pipe joint of the present invention, the upper end of a short pipe having a vertical axis is a pipe connecting portion, and a straight pipe branch pipe is connected to a side surface of the short pipe at a right angle to the axis. The open end of the branch pipe serves as a pipe connecting portion, and an opening is provided at a position on the upper surface side of the branch pipe that directly opens the inside of the short pipe to the outside, and the opening can be opened and closed. It is characterized in that a lid is provided, as an embodiment, a branch pipe is detachably attached to the short pipe, and the axis of the straight pipe branch pipe and the axis of the short pipe are in both axes. The projection planes that are parallel to each other are orthogonal to each other, and the projection planes that are orthogonal to any of the axes include a positional deviation.

〔Example〕

 Next, this invention will be described with reference to examples.

1 (a) is a front view of an embodiment of the present invention, FIG. 1 (b) is a plan view of FIG. 1 (a), and FIG. 2 is a front view of another embodiment.
FIG. 3 (a) is a front view of still another embodiment, FIG. 3 (b) is a plan view of FIG. 3 (a), FIG. 3 (c) is a front view of another embodiment, and FIG. 4 (a). , (B) are plan views of still another embodiment, and FIGS. 5 (A) and 5 (B) are perspective views showing a usage state of the embodiment.

In the drainage vertical pipe joint 1 of the present invention, the upper end of a short pipe 2 having a vertical axis L is made into a pipe connecting portion 3, for example, a receiving port, a union joint, and a side face 2A of this short pipe is orthogonal to the axis L. A tubular branch pipe 4 is communicated, and an open end 5 of the branch pipe 4 serves as a pipe connection portion of a drainage branch pipe (not shown), for example, a receiving port, a union joint, and An opening 6 '(Figs. 5 (a) and (b)) is provided on the upper surface side 4A at a position where the inside of the short tube 2 is directly opened to the outside, and the lid 6 which can be opened and closed is provided at the opening 6'. Is provided and configured.

In the figure, 7 and 7 indicate bolts for fixing the lid body 6.

Although the case where only one branch pipe 4 is provided is shown in the above embodiment, it may be provided on both sides of the short pipe 2 as shown in FIG.

Further, although the case where the branch pipe 4 is a straight pipe is shown in the above embodiment, it may be a curved pipe as shown in FIGS.

Further, the branch pipe 4 may be formed integrally with the short pipe 2 and may be detachable by a flange 4B or the like as shown in FIGS. 4 (a) and 4 (b). The crossing state of the short pipe 2 and the branch pipe 4 is shown in FIG. 1 (a) (b) or FIG. 3 (a) (b).
In addition to the state where the axes L and M of both tubes intersect as shown in,
As shown in FIGS. 4 (a) and (b), the axis M of the straight tube-shaped branch pipe 4 and the axis L of the short pipe 2 are orthogonal to each other on a projection plane parallel to both the axes L and M. On the projection plane orthogonal to the axis, the positional relationship may be deviated.

As shown in FIGS. 5 (a) and 5 (b), the drainage vertical pipe joint 1 of the present invention has upstream pipes 8 and 9 connected to the pipe connection portions 3 and 5, respectively, and a short pipe. Lower end of 2 is downstream drain pipe 1
Connected to 0 via color 11, etc.

[Action]

In the drainage pipe line connected by the drainage vertical pipe joint 1 of the present invention, as shown in FIGS. 5A and 5B, the inside of the pipe is opened to the outside by removing the lid body 6.

Therefore, from the opening 6 ', for example, when cleaning a branch pipe, the nozzle N for injecting high-pressure water to the branch pipe is used, and when cleaning a vertical pipe, a flexible flexible hose 12 is used. Then, the nozzle N is inserted, water is jetted, and high pressure cleaning is performed.

In the figure, H indicates a pressure resistant hose for supplying water to the nozzle N.

At this time, the high-pressure water ejected from the nozzle N vigorously flows down to the downstream side of the drain pipe, but since the opening 6'where the lid 6 is provided is located on the upper surface of the branch pipe, it directly flows out to the outside. Is prevented, and in the case of cleaning in a vertical pipe, the opening 6 '
Is a position offset to the vertical pipe side, so even if other drainage flows down, it will flow down to the vertical pipe as it is,
It does not overflow from the open mouth.

〔effect〕

Since this invention is configured as described above, if the lid at the joint part of the drainage pipe is opened, the inside of the pipe can be easily cleaned from here, and the opening port is offset to the vertical and horizontal drainage pipes. High pressure water for cleaning or
Even if other wastewater may flow down at the same time, it will flow out to the outside,
It does not overflow and can be cleaned very easily and in a clean state.

[Brief description of drawings]

1 (a) is a front view of an embodiment of the present invention, FIG. 1 (b) is a plan view of FIG. 1 (a), and FIG. 2 is a front view of another embodiment.
FIG. 3 (a) is a front view of yet another embodiment, FIG. 3 (b) is a plan view of FIG. 3 (a), FIG. 3 (c) is a front view of yet another embodiment, and FIG. ) And (B) are plan views of still another embodiment, FIGS. 5 (A) and (B) are perspective views showing the usage state of the embodiment, and FIGS. 6 (A) and (B) are conventional examples. Explanatory drawing, No. 7
The figure is an explanatory view of still another conventional example. 1 ... Fitting for drainage vertical pipe, 2 ... Short pipe, 2A ... Side 3,
5 ... Pipe connection part (receptacle) 4 ... Branch pipe, 6 ... Lid, L ... Short pipe axis, M ...
Branch pipe axis

Claims (3)

[Scope of utility model registration request] 1. An upper end of a short pipe having a vertical axis serves as a pipe connecting portion, and a straight pipe-shaped branch pipe communicates with a side surface of the short pipe at a right angle to the axis, and an open end of the branch pipe is provided. An opening is provided on the upper surface side of the branch pipe at a position for directly opening the inside of the short pipe to the outside, and the opening is provided with a lid that can be opened and closed. A drainage vertical pipe joint characterized by the following. 2. The drainage vertical pipe joint according to claim 1, wherein the branch pipe is detachably attached to the short pipe. 3. The straight pipe branch pipe axis and the short pipe axis line,
The joint for a drainage vertical pipe according to claim 1, wherein the positional relationship is such that it is orthogonal on a projection plane parallel to both axis lines and deviated on a projection plane orthogonal to either axis line.