JPS62147260A - Installation device for electric air-conditioning duct in hollow slab - Google Patents

Abstract

PURPOSE:To permit the compact and simple installation of an electric duct and an air-conditioning duct in a small space as well as the increase of the ceiling height of respective floors as much as possible by a method wherein the electric duct and the air-conditioning duct are provided in a hollow slab along the continuous direction of the hollow sections thereof so that the electric duct is piled upon the air-conditioning duct in up-and-down relation. CONSTITUTION:An electric duct 6 is provided so as to be piled upon an air-conditioning duct 5 in up-and-down relation along the continuous direction of the hollow section 4 of a hollow slab A, made by the floor form of a PC board 1 and poured concrete. The air-conditioning duct 5 is formed by a metallic plate such as a galvanized iron sheet or the like so as to have an oblong channel section opened downward immediately and a cushioning plate 9, consisting of a soft plate such as Styrofoam plate or the like, is provided on the air-conditioning duct 5 while the electric duct 6 is provided o the air-conditioning duct 5 along the lengthwise direction thereof. The electric duct 6 is formed by a metallic plate such as the galvanized iron sheet or the like same as the air-conditioning duct 6 so as to have an oblong rectangular section while the section is divided into plural section in the widthwise direction thereof by providing partitioning plates 6a therein.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an installation device for electrical and air conditioning ducts in hollow slabs.

[Conventional technology]

When the cross-section of a slab is considerably thick due to the purpose of the building, hollow slabs (void slabs) are often used to reduce the weight of the slab.

Conventionally, even in such cases, electrical ducts and air conditioning ducts were installed under the slab, and in many cases they were buried in the attic by installing the ceiling below.

[Problem that the invention seeks to solve]

However, with this configuration, the slab would be quite thin and the ceiling would be quite high, so there was a drawback that the number of floors could not be increased considering the height of the building, and the ceiling height was also limited. .

Another disadvantage is that the installation of the duct requires various parts such as hanging bolts, and the work is relatively intensive due to the location constraints of being under the slab.

This invention was proposed in order to solve the above-mentioned conventional problems, and it is possible to install electrical ducts and air conditioning equipment compactly and extremely easily in a small space, and furthermore, the ceiling height of each floor can be reduced. The object is to provide an installation device for electrical and air conditioning ducts in a hollow slab that can be made as high as possible.

[Means for solving problems]

The Fang 1 invention according to this application is characterized in that an electric duct and an air conditioning duct are provided vertically in a continuous direction of the hollow part in a hollow slab made of cast-in-place concrete using a PC board as a floor form. do.

In addition, invention E.2 is characterized in that a foam is provided in a hollow slab made of cast-in-place concrete using a PC board as a floor form, and an electric duct is provided over the foam in the continuous direction of the hollow part. shall be.

〔Example〕

The present invention will be explained below with reference to an illustrated embodiment. The hollow slab A uses a precast concrete board 1 (hereinafter referred to as a PC board) such as an Omnia board or an ALC board as a floor form, and a circular or rectangular cross section is formed on this PCC 10. Alternatively, the hollow formwork 2 with a groove-shaped cross section opening directly below is installed in parallel while being separated by a predetermined distance, and concrete 3 is poured around it, so that the hollow formwork 2 is completely buried in the concrete 3. It is made up of.

Note that in the embodiment, a hollow formwork with a rectangular cross section is used.

A plurality of hollow parts 4 formed by the hollow formwork 2.・・・
An air conditioning duct 5 and an electric duct 6 are buried in the concrete 3 between the left and right hollow parts 4 at predetermined positions in the continuous direction of the hollow part 4.

The air conditioning duct 5 is formed in a horizontally long groove-shaped cross section that opens directly below a metal plate such as a galvanized iron plate, and has left and right side plates 5a, 5.
At the lower end of the air conditioning duct 5, there are provided protruding pieces sb, sb which project horizontally to the outside of the air conditioning duct 5 and are continuous in the longitudinal direction of the air conditioning duct 5.

The air conditioning duct 5 formed in this way has left and right mounting pieces 5b.
, 5b and the PC board 1, a banking material 7 is interposed between the PCC
It is installed horizontally on 10. And left and right mounting pieces 5
A rim material 8.8 made of an angle material is attached on top of the rim material 8.b, 5b, and the air conditioning duct 5 is fixed by fixing the left and right mounting pieces 5b, 5b together with the rim material 8.8 using PCC screws. If the air conditioning duct 5 is not installed, a foam member 12 with approximately the same cross-sectional size as the Soramachi duct can be used instead.
Install.

A buffer plate 9 made of a soft plate such as a Styroform board is installed on top of the air conditioning duct 5, and an electric duct 6 is installed on top of the buffer plate 9 by cutting it in the longitudinal direction of the air conditioning duct 5.

Like the air conditioning duct 5, the electric duct 6 is made of a metal plate such as a galvanized iron plate, and has a horizontally long rectangular cross section. Furthermore, the electric duct 6 is partitioned into a plurality of parts in nine width directions by providing a partition plate 6a therein.

At the ends of the left and right side plates 5a, 5a and the top plate 5C of the air conditioning vent 5, connecting bars 10°10 made of angle materials are attached by welding or the like.
The air conditioning ducts 5, 5 are connected by screwing the connection bars to and io at the ends of a and 5a. A backing material 7 is interposed between the connecting bars 10 and 10.

Further, a collar 11 of a predetermined length is attached to one end of the electric duct 6.
is attached by welding or the like, and by inserting one end of the other electric duct 6 into this collar 11 and welding, the electric ducts 6 and 6 are connected. Note that the top plate 11a of the collar 11 is attached after the ends of the electric ducts 6 and 6 are aligned and positioned.

Figure 6 shows that the air conditioning duct or electrical duct is tightly attached to the bottom surface of the PCC 10, and the PCC 10 is mounted almost integrally using multiple mounting frames 13 and mounting bolts 14, thereby preventing the duct from swinging due to earthquakes, etc. as much as possible. It is something.

Figure 4 shows the vicinity of the air intake to the air conditioning duct, where PCC 10 is an opening [5] that is continuous with the duct 6, and the air supply is installed in the downward ceiling in a direction perpendicular to the hollow part. The duct) 1G is connected to the opening 15 by a sound deadening duct ]7.

〔Effect of the invention〕

Since the present invention has the above configuration, it has the following effects.

■ Air conditioning ducts and electrical ducts are installed in one place inside the hollow slab, so it can be installed extremely compactly in an extremely small space.

■ Air-conditioning ducts and electrical ducts can be installed simply on top of the floor formwork, but these works can be done in parallel with slab construction, making construction easier and significantly shortening the construction period. .

■ Since the air conditioning ducts and electrical ducts are installed inside the hollow slab, there is no need to construct a ceiling to hide them, so even if the slab is slightly thicker, the number of floors and each room will be smaller than the height of the building. ceiling height can be increased as much as possible.

■ Even if there is no air conditioning duct, it is possible to install only the electrical duct by installing foam instead.

[Brief explanation of drawings]

``Figures A-1 to 113 show examples of the present invention, where Figure 1 is a cross-sectional view of a hollow slab showing the installed state of electrical and air conditioning ducts, Figure 2 is an exploded perspective view thereof,'') Fig. f-3 is a sectional view showing details of the vicinity of the air supply duct connection part, and Fig. 4 is a sectional view of the duct showing another embodiment. A...Hollow slab, 1...PC board, 2
...Hollow formwork, 3...Concrete,
4...Hollow part, 5...Air conditioning duct, 6
...Electric duct. □□--One Figure 2 Figure 4 Figure 3

Claims (2)

[Claims] (1) Electricity and air conditioning in a hollow slab characterized by having electrical ducts and air conditioning ducts stacked vertically along the continuous direction of the hollow part in a hollow slab made of cast-in-place concrete using a PC board as a floor form. Duct installation equipment. (2) Electrical duct in a hollow slab, characterized in that an electric duct is provided in a hollow slab made of cast-in-place concrete using a PC board as a floor form, and overlaid with a foam along the continuous direction of the hollow part. installation equipment.