JPH0115737Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) The invention is based on concrete blocks for constructing waterways, which are used to construct ditches for various waterways such as drainage channels and lead-in channels. Concerning connection fittings for connection,
It is characterized by a structure that ensures reliable connectivity and reduces the manufacturing cost of the metal fittings themselves.

(Prior Art) A conventional connecting fitting of this type is as shown in Fig. 9.
It was designed to connect to concrete waterway construction blocks using an eccentric disk.

(Problem to be solved by the invention) In the conventional method as described above, the eccentric disk A
Due to its circular shape, the manufacturing process involves significant material loss during die-cutting and molding, which not only increases costs, but also requires an eccentric disc with respect to the protrusion 5c of the connecting plate 5, as shown in FIG. Since the blocks were connected by bringing the arc edges of A into contact with each other, if a force was applied to the connected block 1 to pull it apart, the eccentric disk A would rotate. This inevitably led to the problem of loose connections between the blocks.

The present invention is characterized in that it attempts to solve the above-mentioned problems.

(Means for Solving the Problems) The present invention has an insertion hole 5a formed in one half of the block for insertion of the first bolt 6 for screwing into one block to be connected, and the other half of the block is provided with an insertion hole 5a in the other half. A horizontally long hole 5b is drilled through which a second bolt is inserted to be screwed into the block.
(b) a connecting plate 5 formed with a protrusion 5c on the edge of the perforation side; a stopper plate 8 having a tapered elongated hole 8a bored in the plate surface and attached to a portion in front of the protrusion 5c so as to be able to rise and fall; A restraining plate 9 which is longer in length and width than the stopper plate 8, is curved forward as a whole, and has a second bolt insertion hole 9a in the center.
The second bolt 7 is inserted into the hole formed based on the three-hole alignment with the horizontally long hole 5b of the connecting plate 5, the circular hole 9a of the restraining plate 9, and the tapered long hole 8a of the stopper plate 8. configured to be inserted through the
Furthermore, the upper and lower end portions of the restraining plate 9 are configured to form bending portions 9b and 9c for contacting the upper and lower edges of the stopper plate 8 when the second bolt is fastened. This relates to a connecting fitting for waterway construction blocks.

(Function) In order to interconnect the waterway construction blocks 1 using the present invention, first bolts 6 are inserted into the bolt insertion holes 5a of the connecting plate 5 for the blocks to be joined at the end faces as shown in FIG. is inserted into the screw tube 4 in one block and tightened. Next, the connecting plate 5, the restraining plate 9, and the stopper plate 8 are sequentially superposed, and the horizontally long hole 5b of the connecting plate 5, the circular hole 9a of the restraining plate 9, and the tapered long hole 8a of the stopper plate 8 are formed. The second bolt 7 is inserted into the hole portion formed based on the matching of the holes, and is screwed into the threaded cylinder 4 of the other block for temporary fixation (see FIG. 7). In this state, if one block is brought closer to the other block as shown in FIG. 3 to make the joint between the two blocks even tighter, the second bolt 7 will move while lowering the stopper plate 8. becomes. When the two blocks are completely joined, the second bolt is fully tightened.

Next, bending portions 9b and 9c at both upper and lower ends of the restraining plate 9 interposed between the connecting plate 5 and the stopper plate 8 are brought into contact with both upper and lower ends of the stopper plate 8, as shown in FIG. When bent forward as shown in FIG.
In this case, the surplus hole portion appears to be closed by the circular hole 9a of the restraining plate 9.

Under the connected state of both blocks as described above,
Since one end edge of the stopper plate 8 is in contact with the protrusion 5c, even if a force is applied to separate both blocks, the tapered elongated hole 8a of the stopper plate 8
However, the second bolt 7 is prevented from moving along the horizontally long hole 5a of the connecting plate 5, and the surplus hole portion of the tapered long hole 8a is kept closed by the circular hole 9a of the restraining plate 9. This prevents the stopper plate 8 from being pushed up along the tapered elongated hole 8a, thereby effectively preventing the connection between the two blocks from loosening.

(Example) An example of the configuration of the present invention shown in the drawings will be described in detail as follows.

In the figure, reference numeral 1 denotes a U-shaped block for constructing a concrete waterway, and connecting grooves 3 having one end as an open edge are formed in the center of the outer surface of both ends of rising walls 2, respectively.

Reference numeral 4 denotes a threaded tube embedded approximately in the center of each of the connecting grooves 3, and the threaded tube 4 has an enlarged portion 4a formed at its base end to increase its pull-out strength. In addition, an anchor wire rod or the like may be fixed and buried in the threaded tube 4 as necessary.

5 is a metal connecting plate for being accommodated in a groove formed when the connecting grooves 3 of both blocks meet when the blocks 1 are joined at their end faces,
A bolt insertion hole 5a for screwing the first bolt 6 into the threaded tube 4 of one block 1 is bored approximately in the center of one half, and the other half has a bolt insertion hole 5a for screwing into the threaded tube 4 of one block 1 through the first bolt 6. A bolt insertion hole 5b for screwing the second bolt 7 into the threaded cylinder 4 of the block 1 is bored. Reference numeral 5c denotes a protrusion extending from the end edge of the connecting plate 5.

Reference numeral 8 denotes a rectangular stopper plate, and a tapered long hole 8a for bolt insertion is bored in the plate surface, and the tapered long hole 8a intersects with the horizontally long hole 5b of the connecting plate 5 described above. However, as the stopper plate 8 moves up and down, the bolt insertion hole constituted by the intersection is moved in the left-right direction, and the second bolt 7 is passed through this hole and inserted into the threaded cylinder 4. It is designed to be screwed together.

Reference numeral 9 denotes a restraining plate interposed between the aforementioned connecting plate 5 and the stopper plate 8, and the restraining plate 9
The entire body is curved forward, and a circular hole 9a for inserting the second bolt 7 is bored in the center portion. Further, the restraining plate 9 is configured such that its length and width are larger than the length and width of the stopper plate 8.

In addition, second bolts are fastened to both upper and lower ends of the stopper plate 9, so that when adjacent blocks are connected, they are brought into contact with the upper and lower edges of the stopper plate 8. It is configured to have bending portions 9b and 9c for preventing movement of the stopper plate 8.

(Effects of the invention) The present invention uses a rectangular stopper plate 8 without using the eccentric disk A as in the conventional connecting fittings of this type, so as mentioned above, manufacturing costs can be reduced. At the same time, there is no need to worry about the connection becoming loose due to stopping due to the arc edge.

Further, the present invention has a restraining plate 9 interposed between the connecting plate 5 and the stopper plate 8, and the horizontally long hole 5b of the connecting plate 5, the circular hole 9a of the restraining plate 9, and the tapered long hole of the stopper plate 8. The second bolt 7 is inserted into the hole formed based on the three-hole alignment with the stopper plate 8a, and the upper and lower end portions of the stopper plate 9 are connected to the stopper plate 8 when the second bolt is fastened. Bending portion 9 for contacting both upper and lower edges
b and 9c, one end edge of the stopper plate 8 is in contact with the protrusion 5c when both blocks are connected, so even if a force is applied to separate the blocks, the stopper plate 8 will not be affected. The tapered long hole 8a of the stopper plate 8 prevents the second bolt 7 from moving along the horizontally long hole 5a of the connecting plate 5,
In addition, since the surplus hole portion of the tapered long hole 8a is kept closed by the circular hole 9a of the stopper plate 9, it is absolutely impossible for the stopper plate 8 to be pushed up along the tapered long hole 8a. Therefore, loosening of the connection between the two blocks can be effectively prevented.

Furthermore, in the present invention, since the deterrent plate 9 has an appearance as if its entirety is curved forward,
The restraining plate 9 not only has an elastic effect and has an effect similar to a spring washer, but also
When the second bolt 7 is tightened, the bending portions 9b and 9c at both the upper and lower ends thereof protrude forward as shown in FIG.
The bending operation as shown in FIG. 8 for abutment against the holder can be accomplished very easily.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is an explanatory perspective view of a block for constructing a waterway using the inventive fittings, Figures 2 and 3 are explanatory front views showing the procedure for connecting blocks using the inventive fittings, and Fig. 4 is in the fastened state. 5 is a sectional view taken along line X-X in FIG. 4, FIGS. 6 to 8 are schematic diagrams for explaining the function of the restraining plate 9, and FIG. 9 is a conventional It is an explanatory front view showing a connection fitting. DESCRIPTION OF SYMBOLS 1... Block for waterway construction, 2... Standing wall, 3... Connection groove, 4... Thread tube, 4a... Ampulla, 5... Connection plate, 5a... Bolt insertion hole, 5
b...Horizontal hole for bolt insertion, 5c...Protrusion, 6...
...First bolt, 7...Second bolt, 8...Stopper plate, 8a...Tapered elongated hole, 9...Suppression plate, 9a...Circular hole.

Claims (1)

[Scope of utility model registration request] An insertion hole 5a for inserting a first bolt 6 for screwing into one block to be connected is bored in one half, and a second bolt for screwing into the other block is bored in the other half. A connecting plate 5 having a horizontally elongated hole 5b for insertion and having a protrusion 5c formed on the edge of the horizontally elongated hole 5b, and a connecting plate 5 having a tapered elongated hole 8a in the plate surface and having a protrusion 5c formed thereon. Stopper plate 8 attached to the front part of the
The length and width of the stopper plate 8 is larger than that of the stopper plate 8, and the entire plate is curved forward, and a second plate is provided in the center.
It consists of a restraining plate 9 in which bolt insertion holes 9a are bored, horizontally long holes 5b in the connecting plate 5, circular holes 9a in the restraining plate 9, and tapered long holes 8 in the stopper plate 8.
The structure is such that the second bolt 7 is inserted through the hole formed based on the three-hole alignment with the hole a, and furthermore, the upper and lower end portions of the above-mentioned restraint plate 9 are connected to the stopper plate 8 when the second bolt is fastened. A connecting fitting for a block for constructing a waterway, characterized in that it is configured to have bending parts 9b and 9c for contacting both upper and lower edges.