JP4424639B2 - Structure using pipe joints - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
When the present invention is installed through a pipe in a floor fireproof section of a building, the solid propagation sound generated from the pipe can be blocked from being directly transmitted to the floor such as concrete by the drainage flowing through the pipe. The present invention relates to a structure using a pipe joint and a pipe joint that blocks solid-borne sound.
[0002]
[Prior art]
In recent years, many high-rise houses have been built to make effective use of land. In particular, recently, high-rise houses such as the 20th and 30th floors have appeared due to the effect of the relaxation of the land area ratio. In such a high-rise house, there are many people who live, and along with this, a large amount of domestic wastewater flows, and a drainage facility for treating this is also required. In high-rise housing, drainage pipes are installed through the floor of each floor so that water can drain from the upper floor to the lower floor.
FIG. 3 is a view showing an example of a drain pipe installed through a conventional floor portion. As shown in this figure, in order to penetrate the pipe (pipe joint 10) in the floor penetration part, a hole 12a slightly larger than the pipe diameter is opened, and the pipe 10 is penetrated through the hole 12a. Then, the gap between the pipe and the hole is backfilled with mortar, concrete, or the like 13 so that the upper and lower floors have fire resistance and sound insulation.
[0003]
[Problems to be solved by the invention]
By the way, in such a conventional technique, since the pipe is in direct contact with concrete, the drainage sound generated in the pipe, such as bath, toilet, kitchen, etc., is directly transmitted to the dwelling part inside the building as a solid propagation sound. There was a drawback of causing noise problems throughout the building. In particular, it was extremely unpleasant for downstairs residents to hear the sound of household wastewater leaking downstairs at night, and this was ranked high in the complaints of apartment houses.
[0004]
Then, the objective of this invention is providing the structure using the pipe joint which can interrupt | block solid propagation sound.
[0005]
[Means for Solving the Problems]
In invention of Claim 1, it arrange | positions around the part which contacts the inner side of the said through-hole of the pipe joint installed through the through-hole provided in the floor part, and interrupts a propagation sound And a mortar buried in the space between the solid propagation sound blocking material and the through-hole disposed therein, and a structure using a pipe joint, In order to protect the returned mortar from flame, the object is achieved by arranging the solid propagation sound blocking material on the lower side of the through-hole so as to have an L-shaped cross section.
[0006]
The invention according to claim 2 is the invention according to claim 1 , wherein the solid propagation sound blocking material is a combination of one or more of an artificial inorganic fiber, a natural inorganic fiber, an organic fiber, and a fireproof sealing material. By the above, the above object is achieved.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIG. 1 and FIG.
FIG. 1 is a cross-sectional view of a structure in which a floor penetration portion is backfilled using a pipe joint having a solid propagation sound blocking material attached to the periphery according to the present embodiment.
As shown in this figure, the pipe joint 10 is installed in the penetration hole 12a of the floor concrete 12 that separates the upper floor and the lower floor of the apartment house. The through-hole 12a has a diameter slightly larger than the diameter of the pipe joint 10 because of the necessity for construction. By installing the pipe joint 10 through the floor concrete 12, the domestic waste water can flow from the upper floor to the lower floor. In the installed state, the pipe joint 10 is slightly thinner from the upper part toward the lower part.
[0008]
A solid propagation sound insulation material 14 having a soundproofing effect is disposed on the contact surface between the pipe joint 10 and the through hole 12 a of the floor concrete 12. A backfill mortar 13 is filled around the solid propagation sound insulation material 14.
The solid-propagating sound insulation material 14 is made of a material having a large difference in specific gravity from mortar and concrete, high sound-absorbing performance, difficult to transmit solid-propagating sound, and fire resistance. Specifically, they are glass wool, rock wool, ceramic fiber, slag wool, asbestos, sepiolite, incombustible synthetic pulp, and heat resistant synthetic fiber.
The solid propagation sound insulation material 14 may be attached around the pipe joint 10 in advance, or may be applied in the space between the pipe joint 10 and the through hole 12a.
In the example shown in FIG. 1, the lower part of the solid propagation sound blocking material 14 is L-shaped, which is to protect the backfill mortar 13 from flames in the event of a fire.
In addition, it is necessary to firmly fix the sealing material 15 on the upper part of the solid propagation sound blocking material 14 and the lower part with an adhesive 16 after the construction.
[0009]
FIG. 2 is a diagram showing a cross-sectional structure of another embodiment. In this example, unlike the example of FIG. 1, the lower part of the solid propagation sound insulation material 14 is not L-shaped.
Therefore, in this structure, as a method of protecting the backfill mortar 13 from the flame, the slate material 17 is provided below the solid propagation sound blocking material 14. It is good also as a structure covered with a metal plate instead of this slate material 17. In such a method, the number of treatment steps during construction increases, but the flameproofing effect can be improved more reliably.
[0010]
【The invention's effect】
In the present invention, it is possible to prevent the solid propagation sound generated by the drainage flowing in the pipe from being transmitted directly to the floor such as concrete, and to protect the mortar backfilled in the event of a fire from the flame.
[Brief description of the drawings]
FIG. 1 is a structural sectional view using a pipe joint according to an embodiment of the present invention.
FIG. 2 is a structural sectional view using a pipe joint according to another embodiment of the present invention.
FIG. 3 is a structural cross-sectional view of a conventional floor penetration portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Pipe joint 12 Floor concrete 12a Penetration hole 13 Backfill mortar 14 Solid propagation sound insulation material 15 Sealing material 16 Adhesive 17 Slate material

Claims (2)

A pipe joint installed through a through-hole provided in the floor,
A solid propagation sound blocking material that is disposed around the portion of the pipe joint that contacts the inside of the through hole and has an effect of blocking the propagation sound;
A mortar buried back in the space between the solid propagation sound blocking material and the through-hole disposed, and a structure using a pipe joint,
In order to protect the backfilled mortar from flame, a structure using a pipe joint in which the shape of the solid propagation sound blocking material on the lower side of the through hole is arranged in an L-shaped cross section. 2. The structure using a pipe joint according to claim 1, wherein the solid propagation sound blocking material is one or a combination of artificial inorganic fibers, natural inorganic fibers, organic fibers, and fireproof sealing materials.

Images