JPH0324675Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an assembly type base body that can be easily used, for example, for erecting a tower for a television antenna.

``Prior art'' Generally, when installing a TV antenna in an area where TV viewing is difficult, for example, it is necessary to transport foundation materials to mountains or highlands and pour concrete, which requires a great deal of labor to construct the foundation. In addition, there is a disadvantage that the concrete curing period is required, which lengthens the construction period.

"Problems to be Solved by the Invention" The purpose of the present invention is to solve the above-mentioned conventional problems and to provide an assembly type base body that can be easily and quickly constructed as a foundation without requiring concrete pouring.

``Means for Solving the Problems'' In other words, the base body of the present invention that achieves the above objectives is ``a group of hollow concrete blocks arranged in a rectangular frame and attached to the corners of the rectangle. four connecting fittings, a tightening shaft inserted vertically into the cavity and the corner of the concrete block, and
It is composed of a presser plate placed on the top of the hollow concrete blocks arranged in the rectangular arrangement, and the connecting fitting has connecting parts in three axial directions, each having a mounting hole drilled therein, Therefore, it is configured to tighten and fix the connecting fittings at adjacent corners, as well as between the connecting fittings and the presser plate.

"Example" Hereinafter, the present invention will be described in detail based on the drawings of the example.
In Figures 1 to 4 showing one embodiment, Figure 1 is an orthogonal projection view showing the base body of the present invention (the back view appears the same as the front view, and the left side view appears the same as the right side view). , FIG. 2 is a perspective view of each member constituting the base body, and FIG. 4 is a diagram of the base body in use.

In the figure, the base body of the present invention is a hollow concrete block 1 (hereinafter simply referred to as concrete block 1) having a hollow part 5 penetrating through the body, such as a JISA5406 hollow concrete block, as shown in the first and fourth figures. ) group, the connecting fittings 2 attached to the corners of the concrete blocks 1 arranged in a rectangular combination, the presser plate 4 placed on the top of the concrete blocks 1, and the connecting fittings between the connecting fittings 2 and the connecting fittings. A tightening shaft 3 that connects and tightens between 2 and the presser plate 4.
The connecting fitting 2 has plate-shaped connecting parts 7A, 7B, and 7C in three axes directions perpendicular to each other, and mounting holes 8A, 8B, and 8C are formed in the connecting parts 7A, 7B, and 7C, respectively. It is formed on a drilled triaxial connecting fitting. Further, the tightening shaft 3 has threaded portions 9 formed at both ends of a shaft having a required length that penetrates into the hollow portion 5 of the concrete block 1. , and is tightened and fixed to the respective connecting portions 7A, 7B, and 7C with nuts. In addition, the holding plate 4 is placed on the top of the concrete blocks 1 arranged in a rectangular combination, and is intended to stably improve the mechanical strength of the base body. A mounting hole 10 is provided through which the threaded portion 9 is inserted and a nut is inserted.

The base body of the present invention is formed by the concrete block 1, the connecting fitting 2, the tightening shaft 3, etc. as described below. That is, referring to FIGS. 1 and 3, eight concrete blocks 1 are arranged in series in sets of two with their hollow parts 5 communicating with each other, each forming one side, and each side The edge of the inner side 1' of the concrete block 1 and the inner side 1' of the concrete block 1 forming the adjacent side.
Arrange them in a rectangular shape by bringing their edges into contact with each other. Then, the connecting parts 7A and 7B of the connecting fitting 2 in the X and Y directions are brought into contact with the end 6 of the concrete block 1 in the spaces created at the four corners of the square, and
The connecting portion 7C in the Z-axis direction is positioned upward. Then, the tightening shaft 3 passing through the cavity 5 is inserted into each of the mounting holes 8A and 8B, and nuts are fitted into the screw portions 9 and tightened, and the four corners of the first group of concrete blocks arranged in a rectangular manner are attached to the connecting fittings 2. This will firmly connect and tighten.

On the other hand, the holding plate 4 is placed in the groove at the top of each side of the concrete blocks 1 arranged in a rectangular arrangement, and the clamping shaft 3 is placed between the mounting hole 10 of the holding plate 4 and the mounting hole 7C of the connecting fitting 2 in the Z-axis direction. are attached in the vertical direction and firmly tightened and fixed to form the base body. Note that the threaded portion 9 at the upper end of the tightening shaft 3, which is installed in the vertical direction, is elongated so as to protrude slightly from the upper end of the concrete block 1, and when attaching the legs of a small tower etc. to the base body, 9 can also be used as the foundation bolt.

The base body of the present invention having the above structure is buried up to the ground level 12 as shown in FIG. Put 15 on it,
The threaded portion 9 of the tightening shaft 3 is inserted into the foundation bolt hole of the base plate 15 and tightened to form the foundation of a small tower or the like. Note that the space 16 inside the base body is appropriately filled with earth and sand, ready-mixed concrete, or the like.

"Operation and Effects of the Invention" The base body of the present invention explained above can form a foundation for erecting a tower, etc. by assembling and connecting each member and burying it in a desired position, so concrete pouring is not required. As a prefabricated base body, foundation construction can be done easily and quickly. Since each of the above-mentioned members is small and lightweight and easy to transport, it is extremely suitable for use as a base body for a parabolic antenna installed in a mountainous or high-altitude area, for example, in an area where television viewing is difficult. This will shorten the construction period for the foundation work and significantly reduce the required man-hours. Further, when the antenna or the like is to be removed, there is an advantage that it can be removed extremely easily.

In addition, in the base body of the present invention, the group of concrete blocks is mechanically firmly tightened by the three-axis connecting fitting 2 having the above structure, and the holding plate 4 is tightly fixed to the connecting fitting 2, so that the three-axis connecting fitting 2 has the structure described above. Since it is fixed in the axial direction, the base body has excellent mechanical strength and can perform safely and stably as a base body.

As described above, the present invention provides a useful assembly type base body having various practical effects.

[Brief explanation of the drawing]

Figure 1: Orthogonal projection view showing the base body of one embodiment of the present invention, A is its front and rear views, B is its top view, C is its left and right side views, D is its bottom view, and Figure 2: A perspective view of each member of the base body in Figure 1, where A is the connecting member, B is the tightening shaft, C is the holding plate, and D is the concrete block. Figure 3: A front sectional view of the base body in Figure 1. FIG. 4: A front view showing the usage state of the base body of FIG. 1. Main code: 1: Cavity concrete block;
2: Connecting metal fittings, 3: Tightening shaft, 4: Holding plate, 5: Cavity section, 7A, 7B, 7C: Mounting section, 8A, 8B,
8C: Mounting hole, 9: Threaded part.

Claims (1)

[Scope of utility model registration request] A group of hollow concrete blocks arranged in the shape of a rectangular frame enclosure, four connecting fittings attached to the corners of the rectangle, and a tightening device inserted vertically into the hollow part of the hollow concrete block and the corner. It consists of a shaft and a presser plate placed on the top of the hollow concrete block, and the connecting fitting has connection parts in three axial directions, and the connection between the connecting fittings and the connecting fitting is made through the tightening shaft. A base body characterized by a structure that tightens and fixes between a metal fitting and the holding plate.