JPH0654027B2 - Drainage pipe water collector for building - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a drainage pipe water collecting device suitable for a long pipe in a vertical direction such as a building, particularly a high-rise hotel or a high-rise house, and a mounting method thereof. is there.

[Prior Art] A drainage pipe water collecting device for a high-rise building is a vertical pipe (straight pipe) that connects each floor to the top and bottom, and these straight pipes are vertically joined together, and the drainage generated in that floor is collected. It consists of a combination of associative joints that are introduced into straight pipes.

In order to attach this device, the work is usually performed in the order shown in FIGS.

A. At the time of placing concrete floor boards (slabs) of each floor, the formwork 1 is placed at a predetermined position on the concrete panel 2b.
Place 3 and pour soil concrete 3b to solidify.

B. After the solidification, the concrete panel 2b and the mold 13 are removed to form a space 14b that opens vertically.

C. The association joint 1b is inserted into the space 14b.

D. Cement mortar 15b is filled and solidified in the space between the association joint 1b and the space 14b through the abutment plate 16b pressed against the ceiling surface of the lower floor.

E. After solidification, the contact plate 16b is removed, and the lower end 6a of the straight pipe 5a is inserted into the upper opening 4b of the association joint 1b.

F. The upper joint 7a of the upper floor, which is inserted through the space 14a of the upper floor plate 3a, is inserted into the expanded upper end 7a of the straight pipe 14a.

G. When the position of the upper-layer association joint 1a is determined, the cement mortar 15a is filled and solidified in the space 14a around the upper-layer association joint 1a via the contact plate 16a pressed against the ceiling surface of the lower floor.

After that, the same procedure is repeated, and the building is piled up by delaying the building by one pitch.

[Problems to be Solved by the Invention] When following such a conventional general procedure, first, a temporary frame material is procured in advance to prepare the temporary frame material in order to fill the assembly joint in the floorboard, and the temporary frame and the temporary frame are prepared. Carry-in, installation, concrete placement,
25 steps or more are required in the work procedure, such as temporary removal, attachment of joint joints, attachment of contact plates, pouring of mortar into the gap, removal of contact plates, etc., and the work required for preparation and procurement is extremely troublesome. . For example, there are various sizes and shapes of the associative joints, and an extremely large formwork is sometimes required in order to provide a space portion that accommodates them.
The higher the number of floors in a high-rise building, the higher the number of vertical movements, resulting in higher production costs and operational safety. In particular, the work of inserting the lower end of the associative joint on the upper floor into the expanded upper end of the straight pipe is a high place near the ceiling and requires scaffolding (see FIG. 4F). Furthermore, in the stacking method from below, since the lower end of the straight pipe is inserted into the upper opening of the associative joint and abuttingly supported, the joint becomes rigid and cannot be displaced in the vertical and horizontal directions. Expansion, contraction,
There is a risk of bursting without being able to withstand the connection or the tube while being restrained because of insufficient vibration absorption.

Next, in this method, since the lower end of the joint joint projects from the ceiling surface of the upper floor and the upper end of the straight pipe is inserted into this, the length of the straight pipe must be determined and cut according to the dimensions of the joint. I won't.

Due to these two reasons, even a slight dimensional error cannot be tolerated, so that adjustment work is required for each floor and each vertical pipe system, and therefore a skilled worker is required.

The present invention has been made in order to solve the above-mentioned problems, has a small number of work steps, guarantees work safety, and is adaptable to displacement. It is intended to provide.

[Means for Solving the Problems] In order to achieve the above object, the drainage pipe water collecting apparatus according to the present invention includes an upper opening portion embedded and fixed in a floorboard of each floor of a building and the upper opening portion. A lower associative joint pipe having a small-diameter lower opening and a branch pipe, an upper associative joint pipe having a branch pipe inserted and connected to an upper portion of the lower associative joint pipe at a lower floor through an elastic packing, and an upper floor. Of the lower associative joint pipe, which has a flange part at the upper end that is inserted from the upper opening of the lower opening and engages with the lower end of the lower opening by elastic packing to suspend it That is, the lower end of the straight pipe with one flange is inserted and connected to the upper assembly joint pipe of the lower floor through an elastic packing.

[Operation] After inserting and connecting the upper associative joint pipe having the branch pipe through the elastic packing into the upper part of the lower associative joint pipe on the lower floors of the lower associative joint pipes embedded in the floorboards of the respective floors in advance, Insert a straight pipe with a single flange from the upper opening of the lower associative joint pipe, and suspend the flange of the straight pipe by engaging it with the lower end of the lower opening via an elastic packing, The lower end of the pipe is inserted and connected to the upper associative joint pipe on the lower floor through elastic packing. Then, these operations are repeated on all floors. Therefore, the work for that is extremely easy, and not only the man-hours are greatly reduced, but also the connection work of the straight pipe with one flange can be done entirely on the floor plate, and can be arbitrarily constructed without any time restriction. .

Further, since the upper association joint pipe can be finely adjusted and rotated up and down even after the pipe is connected, it is easy to connect the drain pipe to the branch pipe.

Also, after connecting over multiple stories, the straight pipe
It can be easily attached and detached by taking out the upper association joint pipe.

In addition, after inserting and connecting the straight pipe with a flange on the lower floor to the lower assembling joint pipe, elastically connecting the lower end of the straight pipe with a flange on the upper floor through the upper assembling joint pipe, that is, two-stage connection Pack volume (especially radial thickness)
Is smaller than that in the case where a straight pipe with a single flange is directly connected to the lower associative joint pipe, the water tightness is less deteriorated.

[Embodiment] An embodiment of the present invention will be described with reference to FIGS. 1A and 1B and FIGS.

First, a lower associative joint pipe 1 having an upper opening 4, a lower opening 8 having a diameter smaller than that of the upper opening 4, and a branch pipe 12 is set at a predetermined position of a concrete panel 2 and the soil concrete including its surroundings is placed. 3 is cast and a floor board is formed. When a corrugated iron plate is used instead of the concrete panel 2, the position of the lower assembly joint pipe must be determined and cut out in advance.

When the concrete panel 2 is removed after the soil concrete 3 is solidified, all the lower associative joint pipes 1 are embedded and fixed in predetermined positions.

In the following description, the upper floor side is denoted by A after the symbol, and the lower floor side is denoted by B after the symbol.

Next, to pipe through the lower associative joint pipes 1A, 1B embedded in the concrete floors 3A, 3B on each floor,
From the upper opening 4A of the lower associative joint pipe 1A embedded in the earth concrete 3A of the upper floor, a straight pipe 5A with a single flange having a flange portion 7A at the upper end and a lower end 6 thereof.
Insert from A and insert through the inside of the lower associative joint pipe 1A.

Before connecting the straight pipe 5A with one flange, the straight pipe 5B with one flange is attached to the lower assembly joint pipe 1B by a rubber packing 9B.
It is connected via B.

Further, after connecting the straight pipe 5B with one flange, the upper association joint pipe 11B is inserted and connected onto the lower association joint pipe 1B fixed to the soil concrete 3B through the rubber packing 10B. The upper association joint 11B also has one branch pipe 18B.

When the flange portion 7A at the upper end of the straight pipe 5A with a single flange reaches the lower opening 8A of the lower associative joint pipe 1A, here,
The flange portion 7A at the upper end is engaged with the lower end portion of the lower opening portion 8A of the lower association joint pipe 1A via the rubber packing 9A,
While suspending the straight pipe 5A, a lower end 6A of the lower pipe 6B is buried in a concrete floor 3B of the lower floor to join the lower joint pipe 1B.
It is inserted and connected through the rubber packing 17B into the upper associative joint pipe 11B connected to the above.

Following these steps, one straight flanged straight pipe 5
Is joined to the lower association joint pipe 1 via the upper association joint pipe 11 to form a drainage water collecting apparatus. Then, the upper end of the straight pipe 5 with one flange and the lower opening of the lower associative joint pipe 1, the lower end of the straight pipe 5 with one flange, the upper associative joint pipe 11, the upper associative joint pipe 11 and the lower associative joint pipe 1, The water sealing action is satisfied by the interposition of the rubber packings, and the drainage of each layer is introduced into the straight pipe 5 with one flange through the drainage pipe (not shown) connected to the branch pipes 12 and 18.

In the above embodiment, the branch pipes 12A and 12B are provided in the lower association joint pipes 1A and 1B, and the branch pipe 18 is provided in the upper association joint pipe 11B.
A type called a downflow swivel joint in which one B is installed horizontally is adopted, but the same action and effect can be obtained even if two or more branch pipes are installed side by side in one association joint.

Further, a centrifugal cast iron pipe is preferable as the straight pipe with one flange, and a sheet-like flange gasket or a ξ type rubber ring connecting a plurality of O-rings is preferable as the rubber packing.

[Effect of the Invention] The present invention has the following effects due to the above configuration.

Of the lower association joint pipe having an upper opening fixedly embedded in the floorboard of each floor of the building and a lower opening having a smaller diameter than the upper opening and having a branch pipe, and the lower association joint pipe of the lower floor An upper assembly joint pipe having a branch pipe inserted and connected through an elastic packing in the upper part, and inserted from the upper opening of the lower assembly pipe of the upper floor and engaged with the lower end of the lower opening via the elastic packing. It consists of a straight pipe with a single flange having a suspended flange portion at the upper end and the same diameter, and the lower end of the straight pipe with a single flange was inserted and connected to the upper assembly joint pipe on the lower floor via elastic packing. Since the lower associative joint pipe is fixed at the same time as placing the concrete in the soil, the productivity is high and the installation cost is greatly reduced.

In addition, a single-flange straight pipe is inserted from the upper opening of the lower associative joint on the upper floor, and the flange of the straight pipe is engaged with and suspended from the lower end of the lower opening. Since the lower end can be inserted and connected to the upper associative joint pipe on the lower floor, the joining work is extremely easy.

In addition, the joint work of the straight pipe with one flange can be done on the floorboard and can be done arbitrarily, and the flexibility of the work process is large without any time restrictions.

Further, since the straight pipe with a single flange is engaged with and suspended from the lower association joint pipe at the flange portion at the upper end thereof, and is simply inserted and connected to the upper association joint pipe at the lower end portion, the joint is variable. It can cope with some vibration and swing. For this reason, it is possible to guarantee safe work and to be economical.

Further, since the upper association joint pipe can be finely adjusted and rotated up and down even after the pipe is connected, it is easy to connect the drain pipe to the branch pipe.

Also, after connecting over multiple stories, the straight pipe
Since it can be easily attached and detached by taking out the upper assembly joint pipe, it can be inspected and repaired even in the event of water leakage.

Also, after inserting and connecting the straight pipe with a flange on the lower floor to the lower assembling joint pipe, the lower end of the straight pipe with a flange on the upper floor was connected through the upper assembling joint pipe, that is, two stages were connected.
The volume of the elastic packing (especially the thickness in the radial direction) is
Compared with the case where a straight pipe with one flange is directly connected to the lower associative joint pipe, the water tightness is not significantly reduced because it does not become large.

[Brief description of drawings]

1A and 1B are front views showing an embodiment of the present invention, FIG. 2 is a front view showing an embodiment of the present invention in a connected state, and FIG. 3 is a second view.
FIG. 4 is an enlarged detailed view of an essential part of the drawing, and FIGS. 4A to 4G are front views showing a conventional technique. 1 ... Lower assembly pipe 1A ... Lower assembly pipe on upper floor 1B ... Lower assembly pipe on lower floor 4 ... Upper opening, 5 ... Straight pipe with one flange 6 ... Lower end, 7 ... ... Flange 8 ... Lower opening 9A, 9B, 10B, 17B ... Rubber packing (elastic packing) 11B ... Upper assembly joint pipe 12, 12A, 12B ... Branch pipe 18B ... Branch pipe

Front page continuation (72) Inventor Takeshi Yonezawa 1620 Kuroda, Iwatsuki, Saitama Prefecture Kurimoto Drainage Pipe Co., Ltd. (72) Inventor Yoshinosuke Yamamoto 7-28-209 Minami Showa-cho, Nishinomiya-shi, Hyogo (72) Invention Author Masanobu Arai 2-10-14, Higashi-Naruo-cho, Nishinomiya-shi, Hyogo (72) Inventor Tadao Ooka 2-5-17, Tatsunishi, Ikuno-ku, Osaka-shi, Osaka (56) References -26765 (JP, U) Actual development 59-179916 (JP, U) Actual public 48-35004 (JP, Y1) Actual public 60-15808 (JP, Y2)

Claims (1)

[Claims] 1. A lower associative joint pipe having an upper opening embedded in and fixed to a floorboard of each floor of a building, a lower opening having a diameter smaller than the upper opening, and a branch pipe, and An upper assembly joint pipe having a branch pipe inserted and connected to the upper portion of the lower association joint pipe via an elastic packing, and an upper assembly joint pipe having an upper opening of the lower association joint pipe of the upper floor and an elastic packing at the lower end of the lower opening. A straight pipe with a single flange having the same diameter and having a flange portion that is engaged and suspended at the upper end, and the lower end of the straight pipe with a single flange is attached to the upper associative joint pipe on the lower floor via an elastic packing. A drainage pipe water collecting device for buildings, characterized by being inserted and connected as a structure.