JPH0826565B2 - Drainage system for buildings - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a device for draining drainage from an indoor drainage fixture of a building from a horizontal drainage pipe through a vertical drainage pipe.

(Prior art) In a building such as an apartment house or a hotel, drainage appliances such as kitchen sinks and washbasins installed in the living room are piped under the floor through partition walls that partition the interior and exterior. The drainage from each drainage device is drained through the horizontal drainage pipe to the vertical drainage pipe arranged outdoors.

By the way, in particular, water containing grease (oil and fat) is drained from the kitchen sink, so that scale adhesion easily occurs on the horizontal drain pipe, which causes clogging. If such a clogging cannot be removed by cleaning or the like by inserting a hose from the cleaning port and ejecting high-pressure water, the horizontal drain pipe is replaced.

(Problems to be solved by the invention) However, the replacement work of the horizontal drain pipe as described above is
It is necessary to enter the living room to peel off the floor plate, which complicates the work and increases the cost.

 The present invention aims to solve the above problems.

(Means for Solving Problems) In order to solve the above-mentioned problems, the drainage device for a building of the present invention is a partition wall in which a plurality of drainage devices provided in a living room of the building partition the inside and outside. In the drainage device that is connected to the vertical drain pipe outside the living room through the horizontal drain pipe that penetrates through, the horizontal drain pipe dedicated to the kitchen sink that connects the kitchen sink to the vertical drain pipe independently of other drainage appliances is provided. The horizontal drain pipe for this kitchen sink is an outer pipe that is piped along the drainage path from the kitchen sink vicinity position to the partition penetrating part, and this outer pipe is inserted from the outdoor end side and the indoor end is the kitchen sink. In addition, the outdoor end is composed of a flexible inner pipe that is detachably connected to each of the vertical drain pipes.

(Operation) According to the above configuration, a horizontal drain pipe for double-sided kitchen sinks is provided, and since the inner pipe thereof has flexibility, the outer pipe is bent from the partition penetration position to the kitchen sink vicinity position. Even if the inner pipe is piped through the outer pipe, the inner pipe can be inserted and removed from the outside through the outer pipe. Therefore, when the horizontal drainage pipe is clogged due to the grease in the kitchen drainage, the drainage devices other than the kitchen sink and the horizontal drainage pipe to which they are connected do not need to be touched, and the floorboard must be removed. Since it can be dealt with by exchanging only the inner tube from the outside without peeling off, the work efficiency is improved. Moreover, since kitchen drainage does not flow into the horizontal drainage pipe to which other drainage devices are connected, clogging due to grease in the kitchen drainage does not occur, and therefore the smooth drainage state of the drainage system as a whole is maintained. Since it can be maintained only by the minimum necessary pipe replacement work, that is, the above-mentioned inner pipe replacement work, it is possible to reduce the cost for maintenance of the entire drainage device.

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

FIG. 1 is a plan configuration diagram of one living room 1 of a high-rise apartment house, and the living room 1 is separated from an outdoor area 3 by a partition wall 2 partitioning the inside and the outside.

Inside the living room 1, a plurality of drainage devices such as a kitchen sink 4a, a toilet 4b, a handwashing place 4c, a bath 4d and a laundry place 4e are provided, and the drainage from these drainage devices is a two-way horizontal drain pipe.
It is drained to the vertical drainage pipe 6 via 5a and 5b.

One of the horizontal drain pipes 5a is dedicated to the kitchen sink 4a, one end of which is connected to the kitchen sink 4a and the other end of which is connected to the vertical drain pipe 6, and is composed of a double pipe (hereinafter , This horizontal drainage pipe for kitchen sink is called double pipe type horizontal drainage pipe 5a). The outer tube 7 is a rigid tube, and the inner tube 8 described later is made of a flexible tube made of heat-resistant synthetic resin (for example, polyethylene pipe, polybutene pipe, etc.).

The other horizontal drainage pipe 5b to which the drainage devices 4b, 4c, 4d, and 4e other than the kitchen sink 4a are connected is composed of a single pipe. The single-pipe horizontal drainage pipe 5b includes the horizontal main pipe 9 and the horizontal main pipe 9 And a lateral branch pipe 10 for connecting the above drainage devices. In addition,
An auxiliary cleaning port 11 covered with a cap 12 described later is provided at a branch point of the lateral branch pipe 10 connected to the laundry 4e.

The vertical drainage pipes 6 are arranged in the outdoor area 3, and, as shown in FIG. 3, at the connecting portions 17 and 18 at the upper and lower ends of the joint pipe body 16 fixed to the floor slab 13 on each floor of the building, respectively. Vertical main pipe 1
Consists of 5 connected.

On the side surface of the joint pipe main body 16, there is formed a connecting portion 19 to which the single-pipe lateral drainage pipe 5b is inserted and connected. further,
An auxiliary joint 20 communicating with the body 16 is detachably attached to the side surface of the joint pipe body 16 with bolts 21.
The auxiliary pipe 20 is connected with the double-pipe lateral drainage pipe 5a.

As shown in FIG. 2, the auxiliary joint 20 is composed of a main body 22 and an adjusting outer pipe 23, and has a connecting portion 66 for connecting the double-pipe lateral drainage pipe 5a, and FIG. A method of connection with the double-pipe lateral drainage pipe 5a will be described with reference to FIG.

First, as shown in FIG. 4, a through hole 24 is provided in the partition wall 2 facing the auxiliary joint 20 of the vertical drainage pipe 6 arranged outdoors.
As shown in FIG. 5, the outer tube 7 of the double tube is inserted into the through hole 24. A male screw portion 25 is formed on the outer circumference of the outdoor end of the outer pipe 7, and the protruding end of the adjusting outer pipe 23 of the auxiliary joint 20 is screwed into the outer screw portion 25 to position the outer pipe 7. The indoor end of the outer pipe 7 is connected to the kitchen sink 4a.

After the outer tube 7 is positioned, as shown in FIG. 6, mortar 26 is filled between the through hole 24 of the partition wall 2 and the outer tube 7 to solidify it, and the outer tube 7 for adjustment is moved from the outer tube 7. At the same time as the removal, the main body 22 of the auxiliary joint 20 is also removed from the joint pipe main body 16.

Next, as shown in FIG. 7, the inner pipe guide 27 is attached to the outdoor end of the outer pipe 7, and the inner pipe 8 is pushed in from the end of the guide 27. The inner tube 8 is inserted by using an inner tube inserting / removing tool 29 that sandwiches the inner tube 8 with rollers 28 and pushes and pulls it.

Then, as shown in FIG. 8, the inner pipe 8 projecting from the outer pipe 7 at the end of the kitchen sink 4a is connected to the elbow pipe 30 communicating with the water trap of the kitchen sink 4a, as shown in FIG. ,
The ring seal 31 and the cap nut 32 are connected to each other. In addition, as shown in FIG. 9, the outer tube 7 is supported via a supporting device 33. This support device 33 corresponds to the floor slab 13 described above.
A base 34 that is bolted to the base 34, a U-shaped bolt 35 that is erected on the base 34, a pair of upper and lower clamping pieces 36 that are inserted through the bolt 35 to clamp the outer tube 7, and the clamping piece. It is composed of 36 fastening nuts 37.

Next, remove the above-mentioned inner pipe guide 27 from the outer pipe 7,
As shown in FIG. 10, the inner pipe 8 protruding from the outdoor end of the outer pipe 7
Is cut by a cutting tool 38 to have a predetermined protruding dimension. After that, the adjustment outer pipe 23 is externally fitted therein, and the adjustment outer pipe 23 is screwed onto the outdoor end of the outer pipe 7 as shown in FIG.

Then, the cap nut 39 and the ring seal 40 are sequentially wound around the outer circumference of the outer pipe 7, and the protruding end of the inner pipe 8 is inserted into the main body 22 of the auxiliary joint 20 as shown in FIG. This body
22 is fixed to the joint pipe body 16. Then, as shown in FIG. 13, on the outer periphery of the branch pipe portion 41 in the main body 22 of the auxiliary joint 20,
By screwing and tightening the above cap nut 39,
The work of connecting the double-pipe horizontal drainage pipe 5a to the auxiliary joint 20 is completed. As a result, the inner pipe 8 is in a connected state in which the annular rubber seal 42 provided on the inner peripheral surface of the branch pipe portion 41 is externally fitted, and the end face of the branch pipe portion 41 is pressed by the cap nut 39. The ring seal 40 is in a connected state in which the ring seal 40 is further fitted onto the adjustment outer pipe 23.

On the other hand, as shown in FIG. 14, the single-pipe lateral drainage pipe 5b is inserted into the through hole 43 of the partition wall 2, and the outdoor end thereof is inserted into the connecting portion 19 of the joint pipe body 16. In the horizontal drain pipe
The cap nut 44 is connected to the connecting portion 19 by screwing it so that a seal (not shown) externally fitted to the 5b is pressed against the end surface of the connecting portion 19. As shown in Fig. 15, each indoor end of this single-pipe horizontal drainage pipe 5b has an elbow that connects to each drainage device.
Connected to 45.

Next, a method of connecting the joint pipe body 16 of the vertical drainage pipe 6 and the vertical main pipe 15 will be described with reference to FIGS. 16 to 22. In the following, the joint pipe main body 16 and the auxiliary joint 20
Will be described as a joint pipe 14.

First, as shown in Fig. 16, connect the joint pipe 14 to each floor slab.
It is put in the through hole 46 of 13 and fixed by mortar 47 after positioning. Next, as shown in FIG. 17, the lower end of the vertical main pipe 15 is fitted and connected to the connecting portion 17 at the upper end of the lower joint pipe 14. In this connection, as shown in FIG. 22, a seal 48 is provided on the inner circumference of the connecting portion 17 of the joint pipe 14 so as to expand and contract in the radial direction, and the vertical main pipe 15 is inserted in a tight fit through the seal 48. Do that.

As shown in FIG. 17, a ring-shaped joint 49 is fitted on the upper end of the vertical main pipe 15, and a stopper 50 is provided on the outer periphery of the connecting portion 18 at the lower end of the joint pipe 14 so as to project. Above ring-shaped joint 49
As shown in FIGS. 20 and 21, the rubber-made cylindrical seal 51 is surrounded by a split plate 52, and the split plate 52 is
The bolts 54 are inserted in the bolt receivers 53 that project radially outward from both ends, and are expanded and contracted in the radial direction by twisting the bolts 54.

Then, as shown in FIG. 18, the vertical main pipe 15 has a vertical shape, and the upper end of the vertical main pipe 15 and the lower end of the upper joint pipe 14 are vertically opposed to each other so that the pipe cores are aligned. Next, as shown in FIG. 19, the ring-shaped joint 49 is moved upward so as to be fitted over the upper end of the vertical main pipe 15 and the lower end of the joint pipe 14. Here, the positioning of the ring-shaped joint 49 in the vertical direction is performed by abutting on the stopper 50. Then, bolt it with the tool 55.
By twisting 54, the ring-shaped joint 49 is contracted in the radial direction, the upper end of the vertical main pipe 15 and the lower end of the horizontal main pipe 9 are tightened to be connected, and the gap between both pipes 14 and 15 is closed by the rubber seal 51. To do.

The upper end of the auxiliary joint 20 is a cleaning port 57 that can be opened and closed by a lid 56, as shown in FIGS. 23 and 24. As a result, the water conduit hose for cleaning from the cleaning port 57.
58 is inserted into the horizontal drainage pipes 5a and 5b and the vertical drainage pipe 6, and high pressure water 60 is ejected from a nozzle 59 attached to the tip of the hose 58 to clean the inner surface of the pipe. In addition, when inserting the water conduit hose 58 from the cleaning port 57 of the auxiliary joint 20, use the single-pipe horizontal drain pipe.
Since it is difficult to insert the hose 58 up to the lateral branch pipe 10 of 5b, as shown in FIGS. 25 and 26, the opening / closing lid 69 of the living room floor 68 is opened, and the auxiliary cleaning port is further provided. Remove the cap 12 that closes 11 and use this cleaning port 11
58 is inserted and the side branch pipe 10 is cleaned.

When replacing the inner pipe 8 of the double-pipe type drain pipe 5a, the elbow pipe 30 and the inner pipe 8 leading to the kitchen sink 4a are first removed in the reverse order of the inner pipe mounting procedure, and the auxiliary joint 20 Is removed from the joint pipe body 16, the cap nut 32 screwed into the adjustment outer pipe 23 is removed, the auxiliary joint body 22 is removed from the inner pipe 8, and the adjustment outer pipe 23 is removed from the outer pipe 7. Then, a drawing wire (not shown) is attached to the outdoor end of the inner pipe 8, and an inner pipe guide 27 in which the wire is fitted is attached to the outdoor end of the outer pipe 7. Then, by pulling the wire, the inner pipe 8 is projected from the inner pipe guide 27, and the protruding portion is the inner pipe insertion / removal tool.
It is sandwiched by 29 rollers 28 and pulled out. The new inner pipe 8 is attached in the same procedure as described above.

When replacing the vertical main pipe 15 of the vertical drain pipe 6, as shown in FIG. 27, the ring-shaped joint 49 is loosened and moved to the vertical main pipe 15 side, and the upper end of the vertical main pipe 15 and the upper joint pipe 14 The saw 62 removes the scale 61 stuck between the lower end and the opposite side. Then, as shown in FIG. 28, by tilting the vertical main pipe 15,
The lower end of the lower joint pipe (14) from the upper end. When pulling out, a hanging band 63 is attached to the upper joint pipe 14, a wire 64 hooked on the band 63 is attached to the vertical main pipe 15, and the wire 64 is pulled up by a hoisting tool 65 so that it can be easily pulled out. The new vertical main pipe 15 is attached in the same procedure as described above.

It should be noted that FIGS. 29 and 30 each show a plan configuration of the living room 1 different from that in FIG. 1. In FIG. 29, the horizontal drainage pipe is a single pipe as in FIG. There are two systems, one of the type 5b and the one of the double tube type 5a, but in the one of FIG. 30, there are two systems of the single tube type 5b and one system of the double tube type 5a. There are three systems in and. The double-pipe horizontal drainage pipe 5a and one of the single horizontal drainage pipes 5b are shown in FIGS. 31 to 31.
As shown in FIG. 33, in addition to the connecting portion 66 with the double-pipe horizontal drainage pipe 5a, it is further connected with the auxiliary joint 20 having the connecting portion 67 with the single-pipe horizontal drainage pipe.

(Effect of the Invention) According to the present invention, a double-pipe horizontal drainage pipe dedicated to a kitchen sink is provided, and the flexible inner pipe can be exchanged from the outdoor side, which results from the grease in the kitchen drainage. When drainage pipes are clogged, the efficiency of drainage pipe replacement work is improved, and the smooth drainage condition of the entire drainage device can be maintained with the minimum amount of pipe replacement work. The cost can be reduced.

[Brief description of drawings]

1 is a plan view of a living room drainage pipe, FIG. 2 is a plan view of a joint pipe and an auxiliary joint pipe, and FIG.
FIG. 3 is a side view of the same, FIGS. 4 to 12 are explanatory views sequentially showing a piping procedure of a double pipe type horizontal drainage pipe, and FIG. 13 is a connecting structure between an auxiliary joint and a double pipe type horizontal drainage pipe. FIG. 14 is a sectional view showing the connection structure between the joint pipe and the single-pipe lateral drainage pipe, FIG. 15 is a view showing the connection structure between the drainage device and the single-pipe horizontal drainage pipe, and FIG.
FIGS. 19 to 19 are explanatory views sequentially showing the piping procedure of the vertical drainage pipe,
Fig. 20 is a plan view of the ring-shaped joint, and Fig. 21 is A- in Fig. 20.
A sectional view taken along the line A, Fig. 22 is a partial sectional view of the upper end of the joint pipe, Fig. 23 is a plan view showing the cleaning procedure from the auxiliary joint, Fig. 24 is the same side view, and Fig. 25 is the cleaning procedure of the lateral branch pipe. FIG. 26 is a plan view showing the same, FIG. 26 is a side view of the same, FIGS. 27 and 28 are explanatory views of a method of removing the vertical main pipe, and FIGS. 29 and 30 are living room drainage pipes according to different embodiments. Fig. 31 is a plan view of an auxiliary joint according to a different embodiment, Fig. 32 is a side view of Fig. 32, Fig. 33 is a front view of Fig. 34, and Fig. 34 is a double-pipe lateral drainage pipe. It is sectional drawing which shows the connection structure of a pipe and a drainage elbow pipe. 1 ... Living room, 2 ... Partition wall, 3 ... Outdoor area, 4a ... Kitchen sink,
5a ... Double pipe type horizontal drain pipe (horizontal drain pipe for kitchen sink), 6
... vertical drainage pipe, 7 ... outer pipe, 8 ... inner pipe.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideki Takahashi, 3-2 Nihombashi Muromachi, Chuo-ku, Tokyo Inside Kubota Iron Works Co., Ltd. (56) Reference JP-A-62-185933 (JP, A) JP-A-SHO 63-289130 (JP, A) Japanese Patent Sho 49-46972 (JP, B1) Actual 61-5426 (JP, Y2)

Claims (1)

[Claims] 1. A drainage device in which a plurality of drainage devices provided in a living room of a building are connected to a vertical drainage pipe outside the living room through a horizontal drainage pipe penetrating a partition partitioning the interior and exterior of the building into a kitchen sink. Is connected to the vertical drainage pipe independently of other drainage equipment, a horizontal drainage pipe for kitchen sink is provided, and this horizontal drainage pipe for kitchen sink is installed along the drainage route from the position near the kitchen sink to the bulkhead penetration. A flexible inner pipe that is inserted into the outer pipe from the outdoor end side, and the indoor end is detachably connected to the kitchen sink and the outdoor end is detachably connected to the vertical drain pipe. Drainage system for buildings characterized by being made of.