JPH0215623Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a formwork for manufacturing concrete products such as, for example, a box-shaped fish reef, and is easy to assemble and disassemble.

Conventional formwork of this type has a complex structure, is troublesome to assemble and disassemble, is inconvenient to handle, and cannot be assembled firmly, making it difficult to place concrete inside it. The disadvantage was that it caused distortion and made it difficult to manufacture accurate products. However, the formwork according to the present invention
It is extremely easy to assemble and disassemble, the work can be done quickly, and the assembled product is strong and accurate, thus eliminating the above-mentioned drawbacks.

To explain its structure with reference to the drawings, 1 is a rectangular bottom plate with a rectangular through hole 2 in the center,
Bolt holes 3 and 4 are provided near the periphery of the bottom plate 1 and near the periphery of the through hole 2, and reinforcing ridges 5 are provided on the lower surface thereof. Reference numeral 6 denotes a side plate standing upright on the outer circumference of the upper surface of the bottom plate 1, with a through hole 7 provided in the center, and connecting strips 8, 8' provided on one side of the periphery and on the upper and lower outer circumferences;
On the other side, reinforcing strips 9 are provided slightly inwardly from the side edges, and reinforcing strips 10 are also provided slightly outwardly on the periphery of the central through hole 7. 11 is a bolt hole provided in the connecting strip 8, and 11' is a bolt hole provided in the connecting strip 8'. Reference numeral 12 indicates a bolt hole provided near the other edge of the side plate 6, and reference numeral 13 indicates a bolt hole provided near the periphery of the through hole 7. Four side plates 6, 6, 6, 6 are attached to the periphery of the bottom plate 1, the connecting strip 8' on one side is joined to the other side of the adjacent side plate 6, and bolts are inserted into the bolt holes 11' and 12 to tighten nuts. Tighten the bolt holes 3 on the bottom plate 1.
A bolt is inserted into the bolt hole 11 of the connecting strip 8 at the lower part of the side plate 6 and tightened with a nut. Reference numeral 14 denotes a column plate, which is formed into an M-shaped cross section by providing side portions 16 at right angles on both sides of the L-shaped portion 15, and side portions are provided at right angles outward from the upper and lower ends of the side portions 16. A rectangular plate part 17 with a width of 16 on one side is provided, and the upper and lower parts of the L-shaped part 15 are
Providing an extension part 18, 18, 18, 18 of one side of a rectangular shape, which is the length of that side and the length of the rectangular plate part 17,
The L-shaped part 15 and the side parts 16, 16 are cut at an angle so as to be lower toward the L-shaped part 15 than the side parts 16, 16 to form the inclined parts 19, 19'. The extension part 1 is formed on the pillar plates 14' and 14''.
8 and the outer edge of the square plate part 17 parallel to the side plate part 16 are provided with connecting strips 20' that are slightly bent inward (approximately 15 degrees). A parallel connecting strip 20'' is provided, and a right-angled connecting strip 20 is formed on the other peripheral edge.
Bolt holes 21, 21', 2 at 0, 20', 20''
1", and the inclined part 1 of the upper and lower pillar plates 14', 14"
9 and 19' are butted together, and a bolt is inserted into the bolt hole 21'' of the connecting strip 20'', 20'' and tightened with a nut to form a pillar plate 14, with the corner of the L-shaped portion 15 facing inward. As shown in FIG.
, insert the bolts into the bolt holes 13 and 21, and tighten the nuts. Reference numeral 22 is an intermediate plate having an L-shaped cross section, and connecting strips 23 are formed at right angles on both sides of the periphery of the intermediate plate, and connecting strips 23 are attached to both end faces at a slightly outward angle (approximately 15 degrees). A connecting strip 23',
These connecting strips 23, 23' have bolt holes 24,
24' is provided, and this is connected to the left and right pillar plates 14.
interposed between the upper and lower sides of the rectangular plate portion 17 and the connecting strips 20′ and 23′ on the side surfaces of the extension portion 18,
At the same time, insert the bolts into the bolt holes 21' and 24' and tighten the nuts. Vertical connecting strip 2
Bolts are inserted into the bolt holes 24 of No. 3 and the bolt holes 13 of the side plate 6 and tightened with nuts. 25
is a hollow cubic fish reef formed by the formwork of the present invention.

Since the present invention has the above-mentioned structure, the bottom plate 1
Lower column plates 14'' are erected at the four corners of the through hole 2, and the lower connecting strips 20 and the bottom plate 1 are connected with bolts and nuts. Next, the intermediate plate 22 is attached to the lower column plates 14'', 14''.
At the same time, the connecting strips 20' of the lower column plate 14'' and the connecting strips 23' at both ends of the intermediate plate 22 are connected with bolts and nuts, and the connecting strips 23 below the intermediate plate 22 and the bottom plate 1 are connected together. Connect with bolts and nuts,
Next, the side plate 6 is erected, and the lower connecting strip 8 of the side plate 6 and the peripheral edge of the bottom plate 1 are connected with bolts and nuts, and at the same time, the vertical connecting strip 8' of the side plate 6 and the reinforcing strip 9 of the adjacent side plate 6 are Bring the ends into contact and tighten the bolts and nuts to connect the connecting strip 20 of the lower pillar plate 14'' and the intermediate plate 22.
Tighten the connecting strip 23 to the side plate 6 with bolts and nuts,
Next, the upper column plate 14' is mounted on the lower column plate 14'', and the connecting strips 20'', 20'' are tightened with bolts and nuts, and are also fixed to the side plate 6, and the upper column plate 14', 14', an upper intermediate plate 22 is interposed,
At the same time as the connecting strips 20' and 23' are tightened with bolts and nuts, the connecting strip 23 of the intermediate plate 22 is assembled to the side plate 6 by tightening bolts and nuts. Therefore, the present invention is easy to assemble, and can be easily disassembled by performing the reverse operation, and because the assembly and disassembly work can be done quickly, products can be manufactured quickly. Moreover, the side plate 6 is
The lower part is fixed to the bottom plate 1, and the upper and lower pillar plates 14',
14'' and the intermediate plate 2 that connects the left and right pillar plates 14.
2 are fixed together, and the side plates 6 are also connected, so even if concrete is placed inside and pressure is applied, the side plates 6 will not bulge outward.
Since the pillar plate 14 is M-shaped and the intermediate plate 22 is L-shaped, it is strong without bulging inward even when internal pressure is applied, and a product with an accurate shape can be manufactured. be able to. When the poured concrete has hardened, it is first removed from the upper intermediate plate 22, which is removed diagonally downward on the inside.
The connecting strips 23' at both ends are inclined so as to open slightly outward, and the connecting strips 23' on the upper pillar plate 14'
0' is slightly tilted inward, making it easy to remove.
Next, remove the upper column plate 14', but this is to remove it diagonally downward on the inside, and the connecting strip 20'' below it.
Since it is slanted, it is also easy to remove.
The lower intermediate plate 22 is removed diagonally upward on the inside, and since the connecting strip 23' at the end is slightly opened outward, it is easy to remove, and the formwork can be easily separated without damaging the product. The product can be manufactured easily, and the structure can be made at low cost.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1 is a perspective view of the present invention with a part removed;
Figure 2 is a perspective view of the bottom plate, Figure 3 is a perspective view of the side plate,
Fig. 4 is a perspective view of the upper pillar plate, Fig. 5 is a perspective view of the lower pillar plate, Fig. 6 is a perspective view of the intermediate plate, and Fig. 7 is a perspective view of the product manufactured according to the present invention. . 1... Bottom plate, 2, 7... Through hole, 6... Side plate,
8, 8', 20, 20', 20'', 23, 23'...
Connecting strip, 14... Pillar plate, 14'... Upper pillar plate, 1
4″...Lower column plate, 15...L-shaped section, 16...
...Side part, 17... Square plate part, 18... Extension part,
19, 19'...inclined part, 22... intermediate part.

Claims (1)

[Scope of utility model registration request] On the periphery of the bottom plate 1 having a through hole 2 in the center, connecting strips 8, 8 are provided on the lower side and outside of one side, and side plates 6, 6, 6, 6 having a through hole 7 in the center are erected. 1 and the side plate 6, and the side plate 6 is connected to the side plate 6.
A bolt is inserted into the edge of the connecting strip 8 and the connecting strip 8 is tightened to connect the bolt.
are provided at right angles to form a cross-sectional shape, and the side portions 16
A rectangular plate part 17, whose width is one side of the side part 16, is provided at right angles outward from the upper and lower ends of the L-shaped part 15. An inclined part 1 is provided with a rectangular extension part 18 and is cut midway between the L-shaped part 15 and the side part 16 into an inclined shape so as to be lower than the side part 16 toward the L-shaped part 15.
9 and 19, and a connecting strip 20 is formed on the entire periphery thereof, and the connecting strip 20 is provided on the side of the extension portion 18, and the connecting strip 20 is provided on the side of the rectangular plate portion 17 parallel to the side portion 16. The upper and lower pillar plates 14, 1 are slightly bent inward.
The pillar plate 14, which is connected by inserting bolts into the connecting strips 20, 20 of the inclined parts 19, 19 of 4 and tightening the nuts, is present at the corner of the side plates 6, 6, 6, 6, and the pillar plate 1
Connecting strips 20 are superimposed on the bottom plate 1 and side plates 6, and bolts are inserted into these and tightened with nuts to secure the connecting strips 20. Connecting strips 23 are provided on both sides of the intermediate plate 22, which has an L-shaped cross section. By providing an outwardly bent connecting strip 23 and interposing it above and below the left and right pillar plates 14, 14, the connecting strips 23, 23 on both sides can be connected to the pillar plate 1.
At the same time, the vertical connecting strip 23 is brought into contact with the connecting strip 20 of
The formwork of a box-shaped fish reef is characterized in that the above is overlapped with the periphery of the through hole 7 of the side plate 6, and the bolts are inserted into the periphery of the through hole 7 and joined by tightening the nuts.