JP2000017705A - Sound arrester for drain system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep noise generated in a main drain passage having a plurality of vertical pipes connected thereto with a drain collecting pipe from leaking out of a resin made bowl body of a bowl trap. SOLUTION: This is a drain system provided with a bowl trap 2 including a resin made bowl body 12 and drains drain by merging it into a vertical main drain passage 1 through the bowl trap 2. In this present case, a noise insulating means 14 for preventing noise from propagating from the main drain passage 1 towards the bowl trap 2 side is provided between the bowl trap 2 and the main drain passage 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproofing system for preventing drainage of noise generated in a vertical main drainage line from leaking through a bowl trap in a drainage system for a middle or high-rise apartment house. It concerns the device.

[0002]

2. Description of the Related Art Conventionally, in a middle- and high-rise apartment house, a plurality of uprights are connected from an upper floor to a lower floor via a drainage collection pipe to form a main drainage pipe. A trap is connected to the pipe via a horizontal branch pipe or the like, and drainage from the trap is merged with a main drainage pipe to flow to a sewer.

[0003]

In a drainage system, a bowl trap is generally used for floor drainage. As the bowl trap, a bowl trap having a bowl made mainly of vinyl chloride resin is used. is there. Also, in the main drainage pipe, for example, the drainage falls vigorously from top to bottom in the main drainage pipe, and the drainage that merges from the horizontal branch pipe to the drainage pipe, and the main drainage pipe, Noise is generated due to various causes such as collision with drainage flowing from top to bottom, and this noise is transmitted to the bowl trap through a branch drainage pipe from the bowl trap to the drainage collection pipe, and There is a problem that the resin leaks out of the resin bowl of the bowl trap.

[0004] In view of the above problems, an object of the present invention is to prevent noise from leaking from a bowl trap in a drainage system.

[0005]

The technical means taken by the present invention to achieve the above object is to provide a bowl trap 2 having a resin bowl 12, through which waste water is discharged. In the drainage system in which the water flows along the main drainage pipe 1 in the vertical direction, sound is transmitted from the main drainage pipe 1 to the bowl trap 2 between the bowl trap 2 and the main drainage pipe 1. This is characterized in that a sound insulating means 14 for preventing the noise is provided.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show an embodiment, and FIG. 1 shows a part of a drainage system in a middle and high-rise apartment house. This drainage system is composed of a main drainage pipe 1 formed vertically from the upper floor to the lower floor.
The drainage discharged through the bowl trap 2 and other various traps is merged into the main drainage line 1 through the branch drainage line 3, and from the lower end of the main drainage line 1 to the sewer. A one-pipe drainage piping system that allows the water to flow is adopted.

In the example shown in the figure, the main drain pipe 1 connects upper and lower ends of a plurality of vertical pipes 4 arranged vertically to a drain collecting pipe 5 provided for each floor via a sealing material. It is configured. One end of one or a plurality of horizontal branch pipes 6 is connected to the drainage collecting pipe 5, and the other end of the horizontal branch pipe 6 is connected to the lower end of a vertical branch pipe 8 via a curved pipe 7. The upper end side of the branch pipe 8 is connected to the bowl trap 2. In the illustrated example, the horizontal branch pipe 6, the bent pipe 7 and the branch pipe 8 constitute the branch drainage pipe 3.

The bowl trap 2 has an upper opening-shaped case 10 provided so as to be immersed below the upper surface of the floor 9, and a drain port 11 penetrating through the bottom wall of the case 10 and projecting upward.
The drainage port 11 is covered with an interval from above so as to cover the drainage port 11 from above, so as to cover the upper end of the branch pipe 8 in the illustrated example. Mainly composed.

The drainage flowing into the case 10 from the upper surface of the floor 9 flows through the lower opening 12a of the bowl 12 into the drainage port 11 from the upper end opening. The bowl 12 is formed of a resin such as a vinyl chloride resin. A bowl trap 2 having this resin bowl 12
In this case, when the noise generated in the main drainage pipe 1 is transmitted to the drainage port 11 through the branch drainage pipe 3, there is a fear that the noise leaks out through the bowl 12 to the outside. In the present invention, between the bowl trap 2 and the main drain pipe 1, the sound (the above-mentioned noise) is transmitted from the main drain pipe 1 to the bowl trap 2 side (the bowl body 12).
Sound insulation means 14 for preventing transmission of the sound is provided.

As shown in FIG. 1 and FIG.
It is divided and connected by a joint pipe 15, and the sound insulating means 14 is provided on the joint pipe 15. The sound insulation means 14 is provided in the joint pipe 15 so as to block passage of the drainage A in the joint pipe 15 and includes a shielding member 16 having a soundproof property. The shield member 16 has an upper part swingable about a pivot shaft 17 via a pivot shaft 17 having an axis parallel to a line segment substantially perpendicular to the vertical direction and the tube axis direction. And a stopper 18 fixed to the upper part of the inner surface of the joint pipe 15.
The swinging in the upstream direction (the direction indicated by the arrow B in FIG. 2) is restricted by this, and is urged in the upstream direction by the urging means 19 composed of a spring (torsion coil spring) or the like.

Further, when the drainage A from the bowl trap 2 hits the shielding member 16, the shielding member 16 is easily moved in the downstream direction B as shown by the phantom line in FIG.
, And the drainage A can be circulated from the bowl trap 2 to the main drainage line 1. The urging force by the urging means 19 is such that the flow of the drainage A is not hindered. Is set to

The urging means 19 does not need to be particularly provided.
May be brought into contact with the stopper 18. Also,
The shielding member 16 may be pivotally supported at its lateral end by a support shaft having a vertical axis. FIG. 3 shows another embodiment, in which a sound insulating means 14 having substantially the same configuration as that described above is provided at a connection portion of the horizontal branch pipe 6 of the drainage collecting pipe 5, and the shielding member 1 is provided.
6, the discharge port 6a of the horizontal branch pipe 6 is closed. In this embodiment, the shielding member 16 is provided in the drainage collecting pipe 5.
The shielding member 16 is in contact with the end of the lateral branch pipe 6 to close the discharge port 6a.
Serves as the stopper 18 in the embodiment.

The place where the sound insulating means 14 is provided is not limited to the one in the above-described embodiment, but the bowl trap 2
Any location between the drainage pipe 1 and the drainage pipe 5 (drainage collecting pipe 5) may be used. For example, the upper end opening of the drainage port 11 may be closed. Further, a plurality of sound insulation means 14 may be provided.

[0014]

According to the present invention, the noise generated by the main drain pipe 1 is prevented from being transmitted to the bowl 12 of the bowl trap 2 by the sound insulation means 14, and the resin bowl of the bowl trap 2 is formed. 12 can be prevented from leaking.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a drainage system.

FIG. 2 is a side view of a main part of one embodiment.

FIG. 3 is a side view of a main part of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main drainage pipe 2 Bowl trap 12 Bowl body 14 Sound insulation means

Continued on the front page (72) Inventor Masakazu Takamoto 7-1-22 Minamionkajima, Taisho-ku, Osaka-shi, Osaka F-term in Kubota-Enkajima Plant Co., Ltd. 2D061 AA04 AA05 AB02 DA05 DD08 DD18

Claims (1)

[Claims] 1. A bowl trap (2) having a resin bowl (12) is provided, and drainage is merged with a vertical drain pipe (1) through the bowl trap (2) to flow therethrough. In the drainage system described above, a sound insulating means (between the bowl trap (2) and the main drainage pipe (1)) for preventing sound from being transmitted from the main drainage pipe (1) to the bowl trap (2) side. (14) A soundproofing device in a drainage system characterized by the provision of (14).