JPH0826566B2 - Drainage system for buildings - Google Patents

Description

TECHNICAL FIELD The present invention relates to a drainage pipe used in a building such as a middle- and high-rise house, and in particular, a one-pipe drainage pipe for flowing sewage and miscellaneous drainage into the same drainage pipe. Concerning the provided drainage equipment.

(Prior art) In buildings such as apartment houses, hotels, and offices, drainage from the drainage device provided in the living room is connected to the drainage device at one end and the drainage pipe at the other end. It is done by a horizontal drain pipe connected to.

In this case, washing and replacing drainage pipes and horizontal drainage pipes in the living space will be a nuisance to residents, so the drainage pipes should be installed upright in the outdoor area so that these tasks can be performed in the outdoor area. At the same time, the other end of the horizontal drain pipe, one end of which is connected to the drainage device arranged in the interior of the building, is connected to the main body of the joint of the drainage standing pipe in the outdoor area via the elbow joint pipe. (See, for example, JP-A-57-3935).

(Problems to be solved by the invention) In order to carry out the cleaning work inside the pipe in the outdoor area, a water guiding hose for ejecting high-pressure water from a cleaning port provided in the outdoor portion of the drainage vertical pipe or the horizontal drainage pipe is inserted, The inside of the pipe may be washed with washing water from the hose.

However, if a cleaning port is provided in the middle of the drainage pipe, the cleaning port will open sideways, so there is a risk that drainage from the upper floor will flow out from the cleaning port during cleaning work. To prevent this, it is necessary to stop drainage from the upper floors and perform cleaning work.

On the other hand, since the horizontal drainage pipe connected to the kitchen sink is severely deteriorated due to the adhesion of oil stains etc., the flexible inner pipe is inserted into the rigid outer pipe and only this inner pipe is replaced. There is a case.

However, if a cleaning port is provided in the middle of the horizontal drain pipe, drainage from the upper floor can be prevented from flowing out during the cleaning work, but even if you try to replace the inner pipe using the cleaning port,
Since the cleaning port is located in the middle of the horizontal drain pipe, it is difficult to insert the inner pipe over the entire length of the horizontal drain pipe.

On the other hand, not only the horizontal drain pipe for kitchen but also another horizontal drain pipe for other drainage appliances is often connected to the joint pipe body of the drainage vertical pipe. Multiple lateral drainage pipes will be connected.

However, with the means of providing a cleaning port in the middle of the horizontal drainage pipe, only the horizontal drainage pipe with the cleaning port can be inserted with the water conduit hose. Each pipe must be provided with a joint pipe with a cleaning port, which increases equipment costs.

In view of the above situation, the present invention is to perform the cleaning work inside the pipe without stopping the drainage from the upper floor, and moreover, to enable the replacement work of the inner pipe inside the horizontal drainage pipe to be performed simply and quickly. To aim.

Another object of the present invention is to enable cleaning of a plurality of lateral drainage pipes connected to the joint pipe body from a single cleaning port.

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

That is, according to the present invention, the other end of the horizontal drain pipe 5a, one end of which is connected to the drainage device 4 disposed in the building room 1,
In a drainage device for a building, which is connected to a joint pipe body 8 of a drainage vertical pipe 6 provided in an outdoor area via an elbow joint pipe 7, the elbow joint pipe 7 connects the horizontal drain pipe 5a to a water conduit hose.
A cleaning port 21 having a larger inner diameter than that of the horizontal drainage pipe 5a for inserting the cleaning port 27 and a lid 22 for detachably attaching the cleaning port 21 are provided. Is formed in an upper opening shape at the upper part of the bent portion (claim 1).

In this case, the horizontal drain pipe 5a has a double pipe structure in which one end is connected to the kitchen sink 4a and a rigid outer pipe 9 and a flexible inner pipe 10 are inserted into the outer pipe 9. It is possible (claim 2).

In addition to the horizontal drainage pipe 5a for the kitchen sink 4a, another horizontal drainage pipe 5b connected at one end to the other drainage appliances 4b, 4c, 4d, 4e except the kitchen sink 4a is a side surface of the joint pipe body 8. When directly connected to the elbow joint pipe 7, the joint pipe body 8 of the other horizontal drain pipe 5b is inserted so that the water guide hose 27 is inserted from the cleaning port 21 to the other horizontal drain pipe 5b. According to the present invention, since the drainage vertical pipe 6 is arranged outdoors, replacement work and cleaning work of the horizontal drainage pipe 5a are preferable. Etc. can be performed outdoors, and a cleaning machine is inserted through the cleaning port 21 for cleaning.

In this case, since the cleaning port 21 is formed in an upper opening shape at the upper part of the bent portion of the elbow joint pipe 7, even if the cleaning body 21 is removed and the cleaning port 21 is opened, the drainage from the upper floor is not cleaned. It does not flow out of mouth 21.

Further, since the cleaning port 21 is opened larger than the inner diameter of the horizontal drainage pipe 5a, the flexible inner pipe 10 can be inserted from the cleaning port 21 to the horizontal drainage pipe 5a, and the cleaning port 21 is also connected to the elbow joint pipe. 7, the inner pipe 10 having substantially the same length as the horizontal drain pipe 5a (outer pipe 9) is inserted from the cleaning port 21 to distribute the inner pipe 10 over the entire length of the horizontal drain pipe 5a. It can be provided (claims 1 and 2).

On the other hand, since the elbow joint pipe 7 is provided at substantially the same height as the connecting portion of the other horizontal drain pipe 5b to the joint pipe body 8, the elbow joint pipe 7 is connected to the other horizontal drain pipe 5b from the cleaning port 21.
A water conduit hose 27 can be inserted into the inside (claim 3).

(Example) Hereinafter, the Example of this invention is described based on drawing.

FIG. 1 is a plan view of a drainage pipe of a living room 1 of a high-rise apartment house, and the living room 1 is provided with an outdoor area 3 by a wall 2.
It is separated from (eg balcony).

Inside living room 1, kitchen sink 4a, toilet 4b, washbasin
Drainage devices 4 such as 4c, a bathtub 4d, and a laundry 4e are provided, and the drainage from these drainage devices 4 is guided to the drainage vertical pipe 6 by the horizontal drainage pipes 5a and 5b and discharged.

The horizontal drainage pipes 5a and 5b distinguish the systems,
One pipe 5a has a double pipe structure exclusively for the kitchen sink 4a, and the other pipe 5b is composed of a single pipe connected to the drainage device 4 other than the sink 4a and is substantially parallel to each other and has the wall 2 It penetrates orthogonally.

The horizontal drainage pipe 5a having a double pipe structure has one end connected to the sink 4a and the other end connected to the drainage standpipe 6 via the elbow joint pipe 7 and the joint pipe body 8 to virtually extend the pipe 5a. The portion is made so as not to directly intersect with the joint pipe body 8, and the outer space is wide so as not to disturb the cleaning.

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

The collecting end of the horizontal drainage pipe 5b is connected to the pipe joint portion 11 of the joint pipe body 8 in a direction orthogonal to the joint pipe body 8.

The drainage vertical pipe 6 is arranged in the outdoor area 3, and as shown in FIG. 2 and FIG. 3, at the upper and lower joints 13 and 14 of the joint pipe main body 8 fixed to each floor slab 12 of the building. It is connected.

The bend joint pipe 7 has a pipe joint portion 15 provided in a direction orthogonal to the pipe joint portion 11 provided in the joint pipe body 8 in a direction orthogonal to the pipe axis, and has an L-shaped end when viewed from a plane. Moreover, the other end is detachably attached by the bolt 16 so that the other end opening faces the same direction as the opening of the pipe joint portion 11.
Further, the other end opening of the joint pipe 7 is formed as a pipe joint portion 17,
As shown in FIG. 5, an adjustment outer pipe 20 screwed to one end of the outer pipe 9 of the lateral drainage pipe 5a is connected via a cap nut 18 and a ring seal 19.

Further, the elbow joint pipe 7 is connected to the horizontal drain pipe 5a with a water conduit hose.
A cleaning port 21 for inserting the cleaning port 27 and a lid 22 for detachably covering the cleaning port 21 are provided. The cleaning port 21 is formed to be larger than the inner diameter of the horizontal drainage pipe 5a and the elbow. The upper portion of the bent portion of the joint pipe 7 is formed in an upward opening shape.
The lid 22 is detachably fixed by a bolt 23.

Further, as shown in FIG. 6 and FIG. 7, the elbow joint pipe 7 is provided so that the water conduit hose 27 can be inserted from the cleaning port 21 into another horizontal drain pipe 5b other than the kitchen horizontal drain pipe 5a. It is provided at almost the same height as the connection portion of another horizontal drainage pipe 5b to the joint pipe body 8.

After fixing the pipe of the outer pipe 9, the inner pipe 10 is inserted from the cleaning port 21 while measuring the length thereof, and the tip of the inner pipe 10 is projected from the outer pipe 9 as shown in FIG. Sink 4a
It is connected to the elbow pipe 24 directly below the water trap (not shown). On the other hand, the rear end of the inner pipe 10 has a ring-shaped rubber seal on the inner surface of the pipe joint portion 17 of the elbow joint pipe 7, as shown in FIG.
It is fixed in a watertight manner via 25, and its length measured at the time of inserting the inner tube 10 is displayed 26 on the upper surface of the lid 22 (for example, 8 m to the trap, 8 m insertion length, etc.).

According to the embodiment of the present invention, first, when cleaning the horizontal drainage pipes 5a and 5b, as shown in FIGS.
22 is removed and the cleaning port 21 is opened, and a water guide hose 27 for cleaning is inserted from the cleaning port 21 into the pipes 5a and 5b, and high pressure water 29 is supplied from a nozzle 28 attached to the tip of the hose 27 in the insertion direction. By ejecting in the opposite direction, the deposits or accumulated substances on the inner surface of the pipe are separated and removed.

At this time, the mixed wastewater of the clean wastewater and solid matters such as adhered matters flows in the horizontal drainage pipes 5a, 5b toward the joint pipe body 8 and flows down from the standing pipe 6.

When cleaning the inner pipe 10 of the horizontal drain pipe 5a,
Since the length of 10 is displayed 26 on the upper surface of the lid 22, insert the water guiding hose 27 while checking the insertion length, and if the length of the display 22 of the lid 22 is reached, insert the water guiding hose 27. When the nozzle is stopped, the nozzle 28 is located at the bend pipe 24 and does not break the trap to reach the drainage device 4a. Therefore, the accident of jetting clean water does not occur.

The horizontal drainage pipe 5b can be cleaned by inserting a water guide hose 27 into the horizontal drainage pipe 5b from the cleaning port 21 provided in the elbow joint pipe 7, as shown in FIG.

However, the horizontal drain pipe 5b is branched in the room,
Due to the structure of such a pipe, it is difficult to insert the water conduit hose 27 from the cleaning port 21 to the drainage devices 4b to 4e, so a lid is provided on the floor of the living room, and an auxiliary cleaning port provided in the middle of the pipe 5b, etc. Using. Therefore, the length from the auxiliary cleaning port to the water sealing portion of each of the drainage devices 4b to 4e can be known by visual inspection or the like, and the nozzle 28 does not break through the water sealing portion.

When the drainage pipe 6 is to be cleaned, the cleaning water guide hose 27 is inserted from the cleaning port 21 in the same manner as described above, and it is possible to work from the upper floor to the lower floor in order, and it is possible to work outdoors.

Further, the cleaning water guide hose 27 is inserted in the wall 2
Since the direction is orthogonal to the plane, the hose 27 can be easily inserted.

When the inner pipe 10 is replaced, the bend pipe 24 leading to the sink 4a is separated from the inner pipe 10, the elbow joint pipe 7 is separated from the drain joint pipe body 8, and then the outer pipe 20 for adjustment is externally fitted. Remove the cap nut 18 from the elbow joint pipe 7 and pull out the elbow joint pipe 7 from the inner pipe 10. Then, the inner tube 10 may be pulled out toward the outer space of the outdoor area 3 using a pulling tool. Then, the new inner pipe 10 can be inserted in the direction of the wall 2 from the outer space using a jig or the like, and can be attached in the reverse order of the above-mentioned inner pipe extracting procedure. It can be replaced efficiently without the risk of getting dirty.

A plurality of pipe joints 17 of the elbow joint pipe 7 may be arranged in parallel, and the display 6 may be provided at a place other than the lid 22 which is easy to see.

(Effect of the Invention) According to the present invention, even if the lid 22 is removed and the cleaning port 21 is opened, the drainage from the upper floor does not flow out from the cleaning port 21, so that the drainage from the upper floor is not stopped and Along with being able to perform cleaning work, the horizontal drain pipe 5a is formed on the elbow joint pipe 7 and
Since the inner pipe 10 can be inserted through the cleaning port 21 that is larger than the inner diameter of the inner pipe 10, the inner pipe 10 can be replaced easily and quickly over the entire length of the horizontal drain pipe 5a (claims 1 and 2).

Further, according to the present invention, the water guide hose 27 can be inserted into the horizontal drain pipes 5a, 5b connected to the joint pipe body 8 from the cleaning port 21 of the elbow joint pipe 7, and therefore the horizontal drain pipe 5a, Since the cleaning of 5b can be performed from one cleaning port 21, it is not necessary to provide a cleaning port in each of the horizontal drain pipes 5a and 5b, and the facility cost can be reduced (claim 3).

[Brief description of drawings]

1 shows a plan view of a living room drainage pipe, FIG. 2 is a plan view of a joint pipe body and an elbow joint pipe, FIG. 3 is a side view of FIG. FIG. 4 is a side view for explaining a connection state of the joint pipe main body with the standing pipe and the pipe, FIG. 5 is a detailed sectional view of a joint portion between the elbow joint pipe and the pipe, and FIG. 6 is a plane for explaining a cleaning work procedure. FIG. 7 and FIG. 7 are side views of the same. 1 ... Room, 3 ... Outdoor area, 4 ... Drainage equipment, 5a ... Horizontal drainage pipe,
6 ... Drainage vertical pipe, 8 ... Joint pipe main body, 21 ... Cleaning port, 22 ... Lid.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideki Takahashi 3-3-2 Nihombashi Muromachi, Chuo-ku, Tokyo Kubota Iron Works Co., Ltd. (56) References JP-A-57-3935 (JP, A) JP-A-SHO 62-185933 (JP, A) Actual development Sho-49-41758 (JP, U)

Claims (3)

[Claims] 1. A drainage standpipe (5a), one end of which is connected to a drainage device (4) arranged in a room (1) of a building, and the other end of which is a drainage pipe provided in an outdoor area ( In the drainage device for a building, which is connected to the joint pipe body (8) of 6) via an elbow joint pipe (7), the elbow joint pipe (7) is connected to the horizontal drain pipe (5a) with a water hose ( The cleaning port (21), which is larger than the inner diameter of the horizontal drainage pipe (5a) for inserting the cleaning port (27), and the lid body (22) that detachably covers the cleaning port (21) are provided. The mouth (21) is formed in an upper opening shape at the upper part of the bent portion of the elbow joint pipe (7), and the drainage device for a building is characterized. 2. The horizontal drain pipe (5a) has a kitchen sink (4) at one end.
a rigid outer tube (9) connected to a) and this outer tube (9)
The drainage system for a building according to claim 1, which has a double pipe structure in which a flexible inner pipe (10) is inserted. 3. A horizontal drain pipe (5b) of which one end is connected to other drainage appliances (4b) (4c) (4d) (4e) except the kitchen sink (4a) is a joint pipe body (8). The elbow joint pipe (7) is directly connected to the side surface, and the elbow joint pipe (7) is inserted into the other horizontal drain pipe (5b) from the cleaning port (21) to the other horizontal drain pipe (5b). 3. The drainage device for a building according to claim 2, wherein the drainage device is provided at substantially the same height as a connection portion of the above) to the joint pipe body (8).