JPH0357689B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for embedding a floor outlet, which is formed by connecting an outlet support having an outlet on an outlet box, during concrete pouring in forming a concrete floor.

(Prior art) Conventionally, as this type of embedding method, first, before pouring concrete, a pedestal is temporarily fixed on a frame plate for floor formation, an outlet box is fixed on the pedestal with screws, and then an outlet box is fixed on the frame plate. Pour fresh concrete over the outlet box, bury the outlet box in the concrete, and then, after the concrete has hardened, scrape off the concrete above the outlet box connection port to make a hole to expose the connection port. While replenishing the inner surface of the hole with ready-mixed concrete, use a trowel to repair the hole to create a symmetrical hole suitable for inserting and holding the next outlet support, then insert the outlet support through the repaired hole and place it in the outlet box. A commonly used method is to connect. However, in this conventional method, the hole is repaired by hand painting with a trowel, which not only requires a lot of work but also has drawbacks such as difficulty in forming the desired hole properly.

(Problems to be Solved by the Invention) An object of the present invention is to eliminate the conventional drawbacks.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the configuration of the present invention includes: temporarily fixing a pedestal on a frame plate for floor formation, and fixing an outlet box on the pedestal; Pour fresh concrete onto the frame board to the height of a predetermined floor surface in which the outlet box will be buried, and after the concrete has hardened, remove the concrete on the top surface of the connection port of the outlet box with the outlet support. making a hole to expose the connection port, and standing a repair frame with open ends at both ends, which has an outer diameter slightly larger than the outer diameter of the outlet support, in the hole and placing the open end against the connection port; Replenishing the outer periphery of the frame tube with fresh concrete to repair the hole into a symmetrical hole; After the supplementary concrete has hardened, the frame tube is removed, and an outlet support is inserted into the symmetrical hole, thereby forming the outlet box. It consists of: connecting to the connection port of; Embodiments of the method of the present invention will be described below with reference to the drawings.

First, as shown in the first diagram, a gate-shaped pedestal 2 is temporarily fixed to the upper surface of a wooden frame board 1 at a predetermined position on which the lower surface of the concrete floor is to be formed, with nails 3. Place the outlet box 4 of the outlet and tighten the screws 5 and 5 from the inside.
The outlet box 4 is fixed on the pedestal 2 by passing through the bottom plate of the outlet box 2 and screwing onto the top plate of the pedestal 2. The outlet box 4 is dish-shaped with an open top, and has a floor base 6 in the opening.The top of the floor base 6 is opened as a connection port, and a horizontal adjustment ring is provided on the inner peripheral surface of the opening. A groove is formed for support.

Next, as shown in the second figure, a suitable cover plate 7 is placed on the upper surface of the opening of the floor base 6 to cover the opening,
Next, fresh concrete 8 is poured onto the frame board 1 to a predetermined floor height in which the floor base 6 is buried.

After the concrete 8 has hardened, as shown in the third figure, the concrete above the opening of the floor base 6 is scraped off using a chisel or the like, and a hole 9 is used to expose the connection port with the cover plate 7 of the floor base 6. , and then remove the cover plate 7. In this case, the hole 9
Usually has a rough mortar shape.

Next, as shown in FIG. 4, the repair frame 10 with its open ends placed on the end surface of the connection port of the floor base 6 in the hole 9 is erected, and then the outer circumferential surface of the frame 10 and the Fresh concrete 11 is replenished between the inner surface of the hole 9 and the hole 9 is repaired by aligning its upper surface with the upper surface of the concrete 8.
The repair frame cylinder 10 is a cylindrical body whose outer diameter is slightly larger than the outer diameter of the outlet support, in this example, the outer diameter of the horizontal adjustment ring of the outlet support, and has a cylindrical body with an outer diameter slightly larger than the outer diameter of the horizontal adjustment ring of the outlet support in this example. A conical cylinder 13 having a diameter that can fit into the upper end 12 of the opening is tapered as appropriate.
A plurality of frame tubes 10 having such a structure are prepared, and a plurality of frame tubes 10 are arranged concentrically and projectingly as shown by the chain lines in FIG. 7 according to the thickness of the floor concrete. The joints 13 are successively fitted into the upper end 12 of the opening and used as additional parts. Note that the frame cylinder 10 of this example is
A protrusion in the generatrix direction is protruded on the outer peripheral surface of the cylinder according to the outer shape of the horizontal adjustment ring. Further, the frame tube 10 may be formed to be slightly tapered downward in order to facilitate removal after molding.

When the frame tube 10 is pulled upward after the supplementary concrete 11 has hardened, a symmetrical hole 14 is formed which exposes the connection port of the floor base 6, as shown in FIG.

In this example, the outlet support 15 has a flange-shaped floor plate 17 protruding from the upper end of an outer cylinder 16 which has a male screw on its outer circumferential surface, and a floor plate 17 that is movable upwardly and retractably from the surface of the floor plate 17 inside the outer cylinder 16. An inner cylinder is inserted, an outlet is attached to the side surface of the inner cylinder, and a horizontal adjustment ring is screwed onto the outer cylinder 16. First, the horizontal adjustment ring is separated from the outer tube 16 and fitted into the groove of the floor base 6 through the alignment hole 14, and then the outer tube 16 of the outlet support 15 is inserted into the alignment hole 14 as shown in the sixth figure. The floor plate 17 is screwed onto the horizontal adjustment ring, and the floor plate 17 is brought into contact with the upper surface of the concrete 11.

(Effects of the Invention) According to the method of embedding a floor outlet in a concrete floor of the present invention, by using a repair frame cylinder, it is possible to easily and reliably form a symmetrical hole suitable for inserting and holding an outlet support. I can do it,
This makes it possible to improve the efficiency of embedding floor outlets.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a schematic front view of the process in which the outlet box is fixed, FIG. 2 is the same view of the concrete pouring process, and FIG.
Figure 4 is the same diagram as above of the concrete removal process, Figure 4 is the same diagram as above of the hole repair process using a repair frame, Figure 5 is the same diagram as above after the repair frame is removed, and Figure 6 is the process of connecting the outlet support. FIG. 7 is a longitudinal sectional front view of the repair frame, and FIG. 8 is a top and bottom view of the same. 1... Frame, 2... Frame, 4... Outlet box, 8... Fresh concrete, 9... Hole, 1
0... Frame tube for repair, 11... Replenishment fresh concrete, 14... Balanced hole.

Claims (1)

[Scope of Claims] 1. Temporarily fixing a pedestal on a concrete floor forming frame plate and fixing an outlet box on the pedestal; burying ready-mixed concrete on the frame plate and burying the outlet box. pouring the concrete to a predetermined floor height; after the concrete has hardened, remove the concrete on the top surface of the connection port of the outlet box with the outlet support to make a hole to expose the connection port; and making a hole to expose the connection port; A repair frame with an outer diameter slightly larger than the outer diameter of the body and open at both ends is erected in the hole by placing the open ends against the connection port, and the hole is balanced by replenishing the outer periphery of the frame with ready-mixed concrete. Repairing the hole; After the supplementary concrete has hardened, the frame tube is removed, and an outlet support is then inserted into the sized hole and connected to the connection port of the outlet box. How to embed it in the floor.