JP2523699B2 - Drainage system for buildings - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a drainage device for a building including a horizontal drainage pipe to which a drainage device in a room is connected.

(Prior art) In a multi-storey building, drainage from a drainage device such as a kitchen sink or washbasin unit connects one end of a horizontal drain pipe to a drainage device and the other end to a vertical drain pipe. By doing so, drainage is performed. The vertical drain pipe is composed of a vertical main pipe and a joint pipe, and the joint pipe has a connecting portion with the vertical main pipe at the upper and lower ends of its main body and a connecting portion with the horizontal drain pipe at the side surface.

In the drainage device as described above, with respect to dirt on the inner surface of the drainage pipe, for example, a flexible hose is inserted from a cleaning port that is openably and closably provided in the joint pipe, and high-pressure water ejected from a nozzle at the end of the hose is used. We are cleaning.

By the way, when a large amount of grease is contained like in kitchen drainage, the scale adhesion to the horizontal drainage pipe causes a significant clogging. Then, when such a clogging cannot be removed only by cleaning, the work of replacing the horizontal drain pipe itself is performed.

(Problems to be Solved by the Invention) However, when the horizontal drainage pipe is replaced as described above, it is necessary to remove the floor plate in the room, which causes a problem that the work is complicated and the cost is increased.

The present invention has been made in view of the above problems, and an object thereof is to provide a drainage device for a building that can efficiently replace a horizontal drainage pipe.

(Means for Solving Problems) The present invention is characterized in that it solves the problems of the conventional arts. Is provided with a joint pipe main body to which the partition wall is connected, and a lateral drainage pipe that penetrates through the partition wall and can be inserted into and removed from the room. Piping is performed by defining the partition wall penetrating position so that it is located outside the outer peripheral surface of the pipe body, and the outdoor end of the horizontal drainage pipe is connected to the joint pipe body via an auxiliary joint that is removable from the joint pipe body. There is a point.

(Operation) According to the above configuration, when the horizontal drain pipe is inserted into or removed from the outdoor side, the joint pipe main body is located at a position displaced from the insertion / removal direction. A work space for inserting and removing the horizontal drain pipe is secured to the side of the joint pipe body simply by removing the auxiliary joint while maintaining the connection state with the vertical drain pipe. As a result, the lateral drainage pipe can be easily replaced from the outdoor side, and the efficiency of replacement work is improved.

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

FIG. 1 is a plan view of a living room 1 of a high-rise apartment house, which is separated from an outdoor area 3 by a partition wall 2.

Inside the living room 1, 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, while a vertical drainage pipe 6 is arranged in the outdoor area 3. The drainage from the kitchen sink 4a is drained to the vertical drainage pipe 6 through a horizontal drainage double pipe 5a, which will be described later, which is provided exclusively for this kitchen sink 4a, while the drainages from the other drainage devices 4b to 4e are The water is drained to the vertical drainage pipe 6 via the horizontal drainage pipe 5b formed of a pipe.

This single pipe type horizontal drainage pipe 5b includes a horizontal main pipe 9 and this horizontal hand pipe 9
And a lateral branch pipe 10 connecting the drainage devices 4b to 4e. The horizontal branch pipe of the horizontal main pipe 9 that is connected to the laundry 4e
An auxiliary cleaning port 11 to which a cap 12 to be described later is attached so as to be openable and closable is provided at a connecting portion with the device 10.

As shown in FIG. 3, the vertical drainage pipe 6 is composed of a joint pipe main body 16 fixed to each floor slab 13 of a building and a vertical main pipe 15 arranged between the joint pipe main bodies 16 of each floor. .

The joint pipe main body 16 has a connecting portion at its upper and lower ends with the vertical main pipe 15.
17, 18 are formed, and a connecting portion 19 to which the single-pipe lateral drainage pipe 5b is inserted is formed on the side surface. And
On the side surface of the joint pipe body 16, an auxiliary joint that communicates with this body 16.
20 is detachably attached by a bolt 21. The outdoor joint end of the horizontal drainage double pipe 5a is connected to the auxiliary joint 20.

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 horizontal drainage double pipe 5a. The horizontal drainage double pipe 5a is composed of an outer pipe 7 and an inner pipe 8 which will be described later.
The method of connecting 5a to the connecting portion 66 will be described with reference to FIGS.
It will be described with reference to FIG.

First, as shown in FIG. 4, a through hole 24 is provided in the living room partition wall 2 facing the auxiliary joint 20 of the vertical drainage pipe 6 arranged outdoors. As shown in FIG. 5, the outer pipe 7 of the horizontal drainage double pipe 5a 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 an outer pipe 23 for adjustment of the auxiliary joint 20 is formed there.
The outer tube 7 is positioned by screwing the projecting ends of the. The indoor end of the outer pipe 7 is piped up to the vicinity of the kitchen sink 4a.

Once the outer pipe 7 is positioned, as shown in FIG. 6, mortar 26 is filled between the through holes 24 of the partition wall 2 and the outer pipe 7 to solidify the outer pipe 7 and the outer pipe 7 is adjusted. 23 is removed and the main body 22 of the auxiliary joint 20 is 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 pipe 8 functions as a horizontal drain pipe exclusively for the kitchen sink to drain the drainage from the kitchen sink 4a to the vertical drain pipe 6, whereas the outer pipe 7 is formed of a rigid pipe. The inner tube 8 is formed of a flexible tube made of heat-resistant synthetic resin (for example, polyethylene pipe, polybutene pipe, etc.). When inserting the inner tube 8 through the inner tube guide 27, an inner tube inserting / removing tool 29 is used that pushes and pulls the inner tube 8 by sandwiching it with the rollers 28.

Then, as shown in FIG. 8, the inner pipe 8 protruding 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. And is connected via a ring seal 31 and a cap nut 32.
In addition, as shown in FIG. 9, the outer tube 7 is supported via a supporting device 33. The support device 33 has a base 34 bolted to the floor slab 13 described above, a U-shaped bolt 35 standing upright on the base 34, and both ends inserted through the bolt 35 to clamp the outer pipe 7. It is composed of a pair of upper and lower holding pieces 36 and a fastening nut 37 of the holding pieces 36.

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.

Next, as shown in FIG. 12, the main body 22 of the auxiliary joint 20 is externally fitted to the inner pipe 8 through the cap nut 39 and the ring seal 40, and the main body 22 is fixed to the joint main body 16. In this state,
Tighten the cap nut 39 as shown in FIG. That is, the inner pipe 8 is slid into the inner periphery of the branch pipe portion 41 of the auxiliary joint 20 via the annular rubber seal 42, and the seal 40 fitted onto the inner pipe 8 is attached to the end face of the branch pipe portion 41 by the cap nut 39. The cap nut 39 is screwed onto the outer circumference of the branch pipe portion 41 so as to be pressed by. As a result, the inner pipe 8 is connected to the auxiliary joint 20.

On the other hand, as shown in FIG. 14, the single pipe type horizontal drainage pipe 5b is connected to the joint pipe body 16 by connecting the horizontal drainage pipe 5b to the through hole of the partition wall 2.
43, insert the outdoor side end into the connecting portion 19 of the joint pipe body 16, fit a seal (not shown) on the lateral drainage pipe 5b, and attach this seal to the end face of the connecting portion 19 with the cap nut 44. Press down.
Each indoor end of the single-pipe lateral drainage pipe 5b, as shown in FIG. 15,
Connect to an elbow 45 that connects to each drainage device 4b-4e.

Next, a method of connecting the joint pipe body 16 and the vertical main pipe 15 in the vertical drain pipe 6 will be described with reference to FIGS. 16 to 22. In the following, the joint pipe body 16 and the auxiliary joint 20 will be collectively referred to as the 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
It is fitted and connected to the upper end of the lower joint pipe 14. This connection is
As shown in FIG. 22, a seal 48 is provided on the inner periphery of the connecting portion 17 at the upper end of the joint pipe 14 so as to expand and contract in the radial direction, and the vertical pipe 15 is inserted in a tight fit through the seal 48. To do.

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 lower end of the joint pipe 14 so as to project. The ring-shaped joint 49 is the 20th
As shown in FIGS. 21 and 21, a rubber cylindrical seal 51 is surrounded by a split plate 52, and bolts inserted into bolt receivers 53 projecting radially outward from both ends of the split plate 52.
It is supposed to expand and contract in the radial direction by twisting 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 coincide with each other. Next, as shown in FIG. 19, the slide 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. After that, by twisting the bolt 54 with a tool 55, the ring-shaped joint 49 is reduced in the radial direction, and the upper end of the vertical main pipe 15 and the lower end of the joint pipe 14 are fastened to each other to connect both pipes 14, The gap of 15 is closed by the cylindrical seal 51.

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. Thereby, as shown in the drawing, the water guide hose 58 for cleaning is inserted from the cleaning port 57 into the inner pipe 8, the single-pipe horizontal drainage pipe 5b, and the vertical drainage pipe 6, and the nozzle attached to the tip of the hose 58.
The inner surface of the pipe is cleaned by ejecting high-pressure water 60 from 59. Further, when inserting the water guide hose 58 from the cleaning port 57 of the auxiliary joint 20, it is difficult to insert the hose 58 into the horizontal branch pipe 10 of the single-pipe horizontal drainage pipe 5b, and therefore, as shown in FIGS. As shown in Fig. 26, open the lid 69 of the living room floor 68,
The cap 12 that covers the auxiliary cleaning port 11 is removed, and the water guide hose 58 is inserted from the cleaning port 11 to clean the lateral branch pipe 10.

When the inner pipe 8 is replaced, contrary to the above-mentioned inner pipe mounting procedure, first, the elbow pipe 30 and the inner pipe 8 leading to the kitchen sink 4a are removed, and the auxiliary joint 20 is attached to the joint pipe main body 16 Cap nut removed from the main unit and screwed into the branch pipe 41 of the auxiliary joint 20.
39 is removed, the auxiliary joint body 22 is pulled out 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 inserted into the inner pipe insertion / removal tool 29.
Insert it in the roller 28 and pull it 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 hand pipe 15 and the upper joint pipe 14 are 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, attach the hanging band 63 to the upper joint pipe 14, attach the wire 64 hooked to this band 63 to the main pipe 15,
It can be pulled out easily by pulling up 64 with lifting tool 65. 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 shown in FIG. 1. In FIG. 29, as in FIG. Drainage double pipe 5a
It has a two-system drainage pipe configuration with a single-pipe horizontal drainage pipe 5b for other drainage appliances, but in FIG. 30, two single-piped horizontal drainage pipes 5b are provided for a total of three drainage pipes. It is considered to be a system. In this case, the horizontal drainage double pipe 5a and one of the single horizontal drainage pipes 5b are connected to the auxiliary joint 20. Therefore, as shown in FIGS. 31 to 33, the auxiliary joint 20 has a connecting portion 67 with the single-pipe lateral drainage pipe 5b in addition to the connecting portion 66 with the horizontal drainage double pipe 5a. Is configured.

(Effects of the Invention) As described above, in the drainage system for a building of the present invention, a lateral drainage pipe is provided which penetrates the partition wall and can be inserted into and removed from the room. The outdoor side region and the extended region along the are connected to the joint pipe body via auxiliary joints by defining partition wall penetrating positions so as to be located outside the outer peripheral surface of the joint pipe body. This allows
A work space for inserting and removing the horizontal drain pipe is secured to the side of the joint pipe body simply by removing the auxiliary joint. In other words, it is not necessary to peel off the floorboard in the room, and the horizontal drainage pipe can be replaced from the outdoor side while maintaining the connection state of the joint pipe body with the upper and lower vertical drainage pipes. The replacement work efficiency is improved.

[Brief description of drawings]

1 is a plan view of a drainage pipe of a living room, FIG. 2 is a plan view of a joint pipe, FIG. 3 is a side view of the same, and FIGS. 4 to 12 are lateral views. Explanatory drawing showing the piping procedure of the drainage double pipe in sequence, Fig. 13 is a cross-sectional view showing the connection structure between the auxiliary joint and the horizontal drainage double pipe, and Fig. 14 is the connection between the joint pipe and the single-pipe horizontal drainage pipe. Diagram showing the structure, FIG. 15 is a diagram showing the connection structure of the drainage device and the single-pipe horizontal drainage pipe, FIGS. 16 to 19 are explanatory views sequentially showing the piping procedure of the vertical drainage pipe, FIG. 20 is Fig. 21 is a plan view of the ring-shaped joint, Fig. 21 is a sectional view taken along the line AA of Fig. 20, Fig. 22 is a partial sectional view of the upper end of the joint pipe, and Fig. 23 is a plan view showing a cleaning procedure from the auxiliary joint. Fig. 24 is the same side view, Fig. 25 is a plan view showing the cleaning procedure of the lateral branch pipe, Fig. 26 is the same side view, and Figs. 27 and 28 are explanatory views of the method of removing the vertical main pipe, respectively. Figure and Figure 30 are different Plan view of a residence chamber drain pipe according to 施例 a plan view of an auxiliary fitting according to FIG. 31 different embodiments, FIG. 32 is a side view of the same, FIG. 33 front view of the same,
FIG. 34 is a cross-sectional view showing a connection structure between the horizontal drain pipe and the drain elbow. 5a: Horizontal drainage double pipe, 6 ... Vertical drainage pipe, 7 ... Outer pipe, 8
…… Inner pipe (horizontal drainage pipe), 14 …… Joint pipe, 15 …… Vertical main pipe,
16 …… Fitting body, 20 …… Auxiliary fitting.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideki Takahashi 3-3-2 Nihonbashi Muromachi, Chuo-ku, Tokyo Inside Kubota Iron Works Co., Ltd. (56) Reference JP-A-59-106790 (JP, A) JP-A-SHO 61-79092 (JP, A) Actually developed 50-1918 (JP, U)

Claims (1)

(57) [Claims] 1. A joint pipe main body, which is arranged on the outdoor side of a partition wall for partitioning indoors and outdoors and has vertical main pipes connected to upper and lower ends thereof, and a horizontal drainage pipe which can be inserted into and removed from the room by penetrating the partition wall. This lateral drainage pipe is installed with the partition wall penetrating position so that the outdoor side region along the partition wall penetrating direction and its extension region are located outside the outer peripheral surface of the joint pipe body. A drainage device for a building, wherein the outdoor side end of the lateral drainage pipe is connected to the joint pipe body via an auxiliary joint that is detachable from the body.