JPH024168Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an embedded metal fitting used in a concrete wall in a nuclear power plant or the like.

Generally, in a nuclear power plant, an embedded metal fitting consisting of a plate 1 as shown in FIG. 1 and a leg 2 fixed to one side of the plate is used, as shown in FIG. It is embedded in the concrete wall 3 so as to be exposed on the surface, and supporting members 5 for supporting pipes 4, cables, etc., or foundation members for construction scaffolding, etc., are welded to the exposed surface of the plate 1. However, welding the supporting member 5 and the foundation member requires a lot of work at high places, which is very dangerous and requires a lot of labor. In addition, the embedded hardware cannot be used for other operations until a fixing structure such as the support member 5 is attached.

In view of these circumstances, the present invention not only facilitates the installation of the fixing structure, but also allows various members other than the fixing structure to be freely attached and detached, which can be effectively used even before the fixing structure is attached. The embedded hardware is made up of a plate and a leg fixed to one side of the plate, and is embedded in a concrete wall so that the side opposite to the leg of the plate is exposed. This invention relates to an embedded metal fitting characterized in that a tap screw portion is provided at an appropriate location from the opposite side of the leg, and a plug is removably fitted and screwed into the tap screw portion.

Embodiments of the present invention will be described below based on the drawings.

As shown in Fig. 3, the embedded metal fitting of the present invention is
In the embedded metal fitting shown in the figure, tap screw portions 6 are carved from the opposite leg side at appropriate locations on the plate 1, and an appropriate chamfered portion 7 is further formed on the outer periphery of the tip, which is fitted into the tap screw portion 6 and screwed. It has a configuration equipped with a plug 8 that can be used.

Next, an example of the use of the embedded metal fitting of the present invention having the above structure will be explained with reference to FIGS. 4 to 6.

In the case of FIG. 4, embedded hardware is embedded in the concrete wall 3 which is the side wall, a hook 9 having a threaded portion at the base end is screwed into the tap screw portion 6, and the hose 10, cable, etc. are attached to the hook 9. It shows a state in which a cab tire, etc. is strung over it.

Fig. 5 shows a concrete wall 3 with plate 1 as a side wall.
The scaffolding support members 11 are embedded at predetermined intervals (the plates 1 are made long), and the scaffolding support members 11 are fixed with bolts 12 to the tap screw portions 6 of each of these plates 1.
1 shows a state in which a scaffold board 13 is placed on top of the scaffold board 13.

FIG. 6 shows a state in which a hook 14 is attached to an embedded metal fitting embedded in a concrete wall 3, which is a ceiling wall, using a tap screw portion 6, and a chain block 15 is suspended from this hook 14.

In each of the embodiments shown above, there is no welding work, so each member can be easily installed, and especially in the case of Fig. 4, it is possible to quickly realize the working environment, and in the case of Fig. 5, it is possible to quickly realize the working environment. It is possible to quickly lay construction scaffolding and secure safe passageways, and the 6th
In the case shown in the figure, parts can be easily transported. That is, the fourth
As shown in FIGS. 6 to 6, by using the tap screw part 6 of the embedded metal fitting of the present invention,
Since various parts including the fixing structure can be easily installed and removed, members other than the fixing structure can be freely attached and removed to make effective use of embedded metal parts. Can be done.

Furthermore, the embedded metal fitting of the present invention has the same shape as the conventional one by fitting the plug 8 into the tap screw part and welding the chamfered part 7, so the fixing structure can be welded as in the conventional case. There is no problem in this case.

Incidentally, the present invention is not limited to the above-mentioned embodiment, and the shape of the plate 1, the number and position of the tap screw portions 6, etc. can be arbitrarily selected.

As explained above, according to the present invention, parts can be easily attached and removed, making it possible to quickly realize a work environment, quickly secure a safe passage, quickly lay construction scaffolding, and facilitate the delivery of parts. It is possible to achieve
This has the excellent effect of improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional embedded metal fitting, FIG. 2 is a diagram showing an example of the use of a conventional embedded metal fitting, FIG. 3 is an explanatory diagram of the embedded metal fitting of the present invention, and FIGS. 4 to 6 Both are diagrams showing examples of use of the embedded metal object of the present invention. 1... Board, 2... Legs, 3... Concrete wall,
6...Tap screw part, 8...Plug.

Claims (1)

[Scope of utility model registration request] In the embedded hardware, which consists of a plate and a leg fixed to one side of the plate and is embedded in a concrete wall so that the side opposite to the leg of the plate is exposed, tap screws are provided at appropriate locations on the plate from the side opposite to the leg. A built-in metal fitting characterized by a plug that is removably fitted and screwed into a tap screw part.