JPH0220734A - Drain pipe cleaning method and drainage system for building - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to drainage pipes used in buildings such as medium-sized and high-rise residences, particularly single-pipe drainage piping that drains sewage and gray water into the same drainage pipe. This article relates to a method for cleaning the provided drainage equipment and its side drainage branch pipes.

(Conventional technology) In buildings such as apartment complexes, hotels, and offices,
Drainage from the drainage equipment installed in the living room is carried out by a horizontal drainage branch pipe that is connected to the drainage equipment at one end and to a drainage standpipe at the other end, and the drainage standpipe is placed inside the living room. The side drain pipe was assumed to be a single pipe.

Therefore, if the drainage standpipe deteriorates, it needs to be replaced, but with conventional equipment, the drainage standpipe was placed inside the living room, so a worker would have to enter the living room to replace it. . However, when a person is actually living in the living room, pipe replacement work becomes troublesome. In addition, the side drain branch pipes through which kitchen wastewater flows are cleaned to prevent clogging, but they are severely deteriorated and need to be replaced regularly. Replacement work inside the living room is troublesome and requires removing the floorboards. Therefore, the cost was also high.

In order to solve this problem, the present applicant has already designed the horizontal drainage branch pipe to have a double pipe structure so that only the inner pipe can be replaced, and also installed the drainage standpipe outside to facilitate cleaning. We are proposing a drainage system that does this.

(Problem to be Solved by the Invention) By the way, in the above-mentioned drainage system, when cleaning the inside of the pipe, a high aqua regia cleaning method is adopted. If a drain pipe is inserted, the length of the side drain branch pipe is unknown and the location of the water seal such as a trap is not known, so it breaks through the water seal, and the cleaning water flows backwards from the drainage device and gushes into the room. There is a problem that the water gets soaked.

The present invention has been made to solve the above problems.

(Means for Solving the Problems) In order to achieve the above object, the present invention has taken the following technical means.

That is, the method for cleaning a drainage pipe of a building according to the first invention includes a horizontal drainage branch pipe 5a that connects a drainage fixture 4 installed inside a room 1 of a building and a drainage standpipe 6 installed outside the room 1. In the cleaning method, the length from the cleaning tool insertion port to the side drain branch pipe 5a to a position near the drain device 4 is measured in advance before cleaning,
Based on this measurement result, a cleaning tool is inserted into the side drainage branch pipe 5a for a distance equal to or less than the measurement value to clean it.

Further, the drainage system for a building according to the second invention is provided in a room 1 of a building.
A drainage device in which a drainage fixture 4 installed inside the room 1 and a drainage standpipe 6 installed outside the room 1 are connected by a horizontal drainage branch pipe 5a, and the horizontal drainage branch pipe 5a and the drainage standpipe A cleaning port 21 and its opening/closing lid 22 are provided at the connection part 6, and the length up to the vicinity of the drainage device 4 is the horizontal drainage branch pipe 5a and the drainage standpipe 6.
Alternatively, it is characterized in that it is displayed 26 in the area outside the room 1 of the connection part.

Furthermore, the drainage system for a building according to the third invention provides a drainage system for a building in a building.
This is a drainage device in which a drainage fixture 4 installed inside the room 1 and a drainage standpipe 6 installed outside the room 1 are connected by a horizontal drainage branch pipe 5a, and the horizontal drainage branch pipe 5a and the drainage standpipe 6 are connected to each other by a horizontal drainage branch pipe 5a. A cleaning port 21 and its opening/closing lid 22 are provided at the connecting portion, and the length to the vicinity of the drainage device 4 is indicated 26 on the building wall near the connecting portion.

(Function) According to the present invention, cleaning work, etc. is performed by inserting a washer through the cleaning port 21, but before the work, the length from the cleaning port 21 of the horizontal drain branch pipe 5a to the drain device 4 is pre-planned. Measure the humidity,
This length is displayed at or near the opening/closing M22, so measure the hose length of the washer while cleaning, and stop inserting the hose when the displayed length reaches the 1st point. , the washing machine can be stopped before the indoor drainage equipment 4. Therefore, the water sealing part is not destroyed by the washing machine, and cleaning work can be performed without causing an accident of backflow of washing water.

(Example) Hereinafter, an example apparatus and a cleaning method thereof according to the present invention will be explained based on the drawings.

FIG. 1 is a plan view of a drainage pipe in a living room 1 of a high-rise apartment building, and this living room 1 is separated from an outdoor area 3 by a wall 2.

Inside the living room 1, drainage equipment 4 such as a kitchen sink 4a, a toilet bowl 4h, a wash basin 4c, a bathtub 4d, and a laundry area 4e are arranged. Drainage from these drainage equipment 4 is carried out through a horizontal drainage branch pipe 5a,
5b and is led to a drainage standpipe 6 and discharged.

The horizontal drainage branch pipes 5a and 5b are separated into systems, with one branch pipe 5a having a double pipe structure for exclusive use of the kitchen sink 4a, and the other branch pipe 5b being used for drainage equipment other than the sink 4a. 4 are connected to each other, and are substantially parallel to each other and pass through the wall 2 at right angles.

One end of the horizontal drainage branch pipe 5a having a double pipe structure is connected to the sink 4a, and the other end is connected to the drainage standpipe 6 via an elbow joint pipe 7 and a collecting pipe 8, and is directly orthogonal to the collecting pipe 8. I am forced not to do it.

The outer pipe 9 of the branch pipe 5a is a rigid pipe, and the flexible inner pipe 10
is a flexible pipe made of heat-resistant synthetic resin (eg, polyethylene pipe, polybutene pipe, etc.).

The collecting end of the horizontal drainage branch pipe 5b is connected to the branch pipe joint 11 of the collecting pipe 8 in a manner perpendicular to the collecting pipe 8.

The drainage standpipe 6 is arranged in the outdoor area 3, and is connected to the upper and lower joints 13 and 14 of the collecting pipe 8 fixed to each floor slab 12 of the building, as shown in FIGS. 2 and 3. has been done.

The bend joint pipe 7 has one end connected to a branch pipe joint 15 provided perpendicularly to the branch pipe joint 11, which is provided in the direction perpendicular to the pipe axis of the collecting pipe 8, in the same way as the branch pipe joint 11, which is provided in the direction perpendicular to the pipe axis. It is removably attached with a bolt 16 in such a shape that the other end opening faces in the same direction as the opening of the branch pipe joint 11. Further, the other end opening of the joint pipe 7 is connected to the branch pipe joint 1
7, as shown in FIG.
8. An adjustment outer pipe 20 is connected to one end of the outer pipe 9 of the horizontal drainage branch pipe 5a through a ring seal 19 and is screwed to one end.

Furthermore, a cleaning opening 21 is provided on the upper surface of the bend joint pipe 7, and an opening/closing lid 22 is removably fixed with bolts 23.

After the outer tube 9 is fixed, the flexible inner tube 10 is inserted through the cleaning port 21 while measuring its length.
As shown in the figure, the distal end of the flexible inner tube 10 protrudes from the outer tube 9 and is connected to an elbow tube 24 directly below the water seal trap (not shown) of the sink 4a. On the other hand, the rear end of the flexible inner tube 10 is watertightly fixed to the inner surface of the branch pipe joint 17 of the elbow joint tube 7 via a ring-shaped rubber seal 25, as shown in FIG. The length measured when inserting the inner tube 10 is displayed 26 on the top surface of the opening/closing M22 (for example, 8 to the trap).
m, or insertion length 8m, etc.).

In addition to the above measurement method, the length to the trap can also be measured by measuring the length of the outer tube 9 during piping construction.

According to the embodiment of the present invention, first, the horizontal drainage branch pipe 5a.

5b, as shown in FIGS. 6 and 7, remove the opening/closing lid 22, open the cleaning port 21, and connect the cleaning water guide hose 27 from the cleaning port 21 to the branch pipes 5a, 5b.
High-pressure water 29 is ejected from a nozzle 28 attached to the tip of the hose 27 in a direction opposite to the direction of insertion to separate and remove deposits or stagnation on the inner surface of the tube.

At this time, the wastewater mixed with cleaning wastewater and solid matter such as deposits flows through the horizontal drainage branch pipes 5a and 5b toward the collecting pipe 8,
It flows down from the standpipe 6.

In addition, when cleaning the inside of the flexible inner pipe 10 of the horizontal drainage branch pipe 5a, the length of the flexible inner pipe 10 is displayed 26 on the top surface of the opening/closing M22.
Therefore, when inserting the water guide hose 27 while checking the insertion length, and when the opening/closing lid 22 reaches the length indicated by 26, when the water guide hose 27 is stopped being inserted, the nozzle 28 is inserted at the bend pipe 24. Since the trap is located at 1, the trap will not be broken and the water will not reach the draining device 4a, and therefore, an accident of clean water spouting out will not occur.

In addition, when cleaning the horizontal drainage branch pipe 5b, due to the structure of the piping, the water guide hose 27 is connected from the cleaning port 21 to the drainage equipment 4b.
4e Since it is difficult to insert the pipe 4e, an opening/closing lid is provided on the floor of the living room, and an auxiliary cleaning port provided in the middle of the branch pipe 5b is used for cleaning. The length from the auxiliary cleaning port to the water sealing part of each drainage device 4b to 4e can be determined by visual measurement, and the nozzle 28 will not break through the water sealing part.

When cleaning the drain standpipe 6, do the same as above,
The cleaning can be done outdoors by inserting the cleaning water hose 27 through the cleaning port 21 and sequentially moving from the upper floor to the lower floor.

Furthermore, the insertion direction of the cleaning water guide hose 27 is set to the wall 2.
Since the direction is perpendicular to the plane, insertion of the hose 27 is easy.

A plurality of branch pipe joints 17 of the elbow joint pipe 7 can be arranged in parallel, and the display 26 can be provided in an easily visible place other than the opening/closing lid 22, for example, on the building wall (including the door) near the connection part. can.

In the above embodiments, the horizontal drainage branch pipe 5a has a double-pipe structure, but for branch pipes that do not have a double-pipe structure, the length to the drainage device is similarly displayed and scales are displayed. Of course.

(Effects of the Invention) As described above, in the present invention, the drainage fixture 4 installed inside the room 1 of the building and the drainage standpipe 6 installed outside the room 1 are connected by the horizontal drainage branch pipe 5a. This drainage device is provided with a cleaning port 21 and an opening/closing lid 22 at or near the connecting portion of the horizontal drainage branch pipe 5a, and the length up to the vicinity of the drainage device 4 is measured in advance, Moreover, since it is characterized by being displayed 26 in an appropriate place, the cleaning work of the horizontal drainage branch pipe 5a can be performed easily and efficiently, and the insertion length of the cleaning water guide hose 27 can be adjusted. Measurement results or their display 2
6, it is possible to insert the washer by a distance equal to or less than the measured value or its display and stop the tip of the washer before a water sealing part such as a trap. Therefore, the tip of the washing machine does not break through the water sealing part, and accidents such as washing water flowing back from the drain device 4 and gushing into the room can be prevented, and the cleaning work can be carried out with peace of mind without the risk of staining the living room. I can do it.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view of a residential room drainage pipe, Fig. 2 is a plan view of a collecting pipe and an elbow joint pipe, and Fig. 3 is a side view of Fig. 2; Figure 4 is a side view for explaining the connection state between the collecting pipe, stand pipe, and branch pipe, Figure 5 is a detailed cross-sectional view of the joint between the elbow joint pipe and the branch pipe, and Figure 6 is a plan view for explaining the cleaning work procedure. 7 are side views of the same. 1... Room, 4... Drainage equipment, 5a... Lateral drainage branch pipe, 6... Drain standpipe, 21... Cleaning opening, 22... Opening/closing lid, 26... Display. Kaya 7 Figure 2 Figure 910;! 4 㢢a Figure 6 Figure 6

Claims (3)

[Claims] (1) A method for cleaning a horizontal drainage branch pipe 5a connecting a drainage fixture 4 installed inside a room 1 of a building and a drainage standpipe 6 installed outside the room 1, in which the Measure the length from the cleaning tool insertion port to the side drain branch pipe 5a to a position near the drain device 4, and based on the measurement result, insert the cleaning tool into the side drain branch pipe 5a by a distance equal to or less than the measured value. A method for cleaning a drainage pipe of a building, which is characterized by cleaning. (2) Drainage equipment 4 installed in room 1 of the building and room 1
This is a drainage device in which a drainage standpipe 6 erected outside is connected by a horizontal drainage branch pipe 5a, and a cleaning port 21 and its opening/closing lid are provided at the connection between the horizontal drainage branch pipe 5a and the drainage standpipe 6. 22, and the length up to the vicinity of the drainage device 4 is indicated 26 on the side drainage branch pipe 5a, the drainage standpipe 6, or the area outside the room 1 of the connection part. Device. (3) A drainage device in which a drainage fixture 4 installed in a room 1 of a building and a drainage standpipe 6 installed outside the room 1 are connected by a horizontal drainage branch pipe 5a, the horizontal drainage A cleaning port 21 and its opening/closing lid 22 are provided at the connection between the branch pipe 5a and the drainage standpipe 6, and the length up to the vicinity of the drainage device 4 is indicated 26 on the wall of the building near the connection. A drainage system for a building characterized by: