JPH0115662B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a joint structure for a waterway formed by consecutively arranging blocks for building a waterway, such as secondary concrete products.

(Prior art) As a conventional waterway joint structure, for example,
-There is one disclosed in Publication No. 4164. In this joint structure, nuts 6 and 7 are buried and fixed in the ends of the waterway construction blocks 1 and 1, as schematically shown in FIGS. 10 and 11.
1, screw the bolt 3 passing through the through hole at one end of the connecting plate 2 into the nut 6 of one waterway construction block 1, and connect the long hole at the other end of the connecting plate 2 and the eccentric seat plate. By screwing the bolt 4 passing through the eccentric shaft hole 5 into the nut 7 of the other waterway construction block 1, the two waterway construction blocks 1, 1 are joined.

(Problems to be solved by the invention) However, in such a waterway joint structure,
If the threaded tightening of the bolts 3 and 4 is weakened due to a construction error, or if the gap between the joint members is larger than a specified value due to a manufacturing error, the bolts may be weakened. When an unexpectedly large overload is applied to the ground, the block rows, which cannot resist this load, sometimes bend and sink.

Furthermore, the span of the joint part of this structure cannot be made very long, and in soft ground it is necessary to drive a large number of support piles and install a pedestal for each product, that is, for each joint part.

Therefore, an object of the present invention is to apply an appropriate pressing force to each waterway construction block even if the bolts are weakly tightened or the gap between the joints exceeds a predetermined value. Since the action is applied between the joint ends, the block row will not bend even if the ground is weak and unexpectedly large loads are applied, and the waterway joint structure allows for a sufficiently long installation span for support piles and pedestals. The goal is to provide the following.

(Means for Solving the Problems) The gist of the waterway joint structure of the present invention will be explained below using reference numerals in the attached drawings. 2 upper and lower nut bodies 9a, 9b, 10a, 1
0b and two upper and lower communication plates 12,1
A large diameter hole 17 and a small diameter hole 18 are provided at the left and right ends of 3,
Bolt 1 passed through small diameter hole 18 of upper connecting plate 12 through nut body 9b of waterway construction block 11B
4b, fit the disc part 22a of the eccentric seat plate 22 into the large diameter hole 17 of the upper connecting plate 12, and then screw the bolt 14a through the eccentric shaft hole 23 of the eccentric seat plate 22.
into the nut body 9a of the waterway construction block 11A, screw the bolt 15b passed through the small diameter hole 18 of the lower communication plate 13 into the nut body 10a of the waterway construction block 11A, and adjust the size of the lower communication plate 13. The disk portion 22 of the eccentric seat plate 22 is inserted into the diameter hole 17.
a, and screw the bolt 15a passing through the eccentric shaft hole 23 of the eccentric seat plate 22 into the nut body 10b of the water channel construction block 11B, and rotate the two eccentric seat plates 22 to construct two water channels. Block 11A, 1
In the waterway joint structure in which bolts 14a and 14b are tightened with the bolts 1B in close contact, the bolt 14a fixes the left end 12a of the upper connecting plate 12 to the left waterway construction block 11A, and the right end of the lower connecting plate 13. 13b to the bolt 15b fixed to the right channel construction block 11B by a connecting rod 16, or a bolt 14b fixed to the right end 12b of the upper connecting plate 12 to the right channel construction block 11B; The left end portion 13a of the lower connecting plate 13 is connected to the bolt 15a fixed to the left channel construction block 11A by a connecting rod 16.

(Function) In the waterway joint structure of the present invention, the nuts 9a, 10a of the adjacent waterway construction blocks 11A, 11B
The tightening bolts 14a and 15a are screwed in through the eccentric shaft hole 23 of the eccentric seat plate 22, and the eccentric seat plate 22 is rotated within the large diameter hole 17 of the upper and lower connecting plates 12 and 13. ，
When 11B is small and lightweight, the waterway construction blocks 11A and 11B are brought together and brought into close contact simply by rotating the eccentric seat plate 22. However, when the waterway construction blocks 11A, 11B are large and heavy objects, the waterway construction blocks 11A, 11B are moved by mechanical force.
It is necessary to rotate the eccentric seat plate 22 while pushing one side of the seat plate 11B.

(Embodiment) In the embodiment shown in FIG. 1, the connecting rod 16 of the joint between the waterway construction blocks 11A and 11B is connected to the bolt 14a passing through the small diameter hole 18 at the left end of the upper connecting plate 12, and the lower connecting rod 16. It is connected to the bolt 15b passing through the small diameter hole 18 at the right end of the plate 13, and
The connecting rod 16 of the joint between the waterway construction blocks 11B and 11C also has a bolt 14a passing through the small diameter hole 18 at the left end of the upper connecting plate 12 and the lower connecting plate 1.
It is connected to the bolt 15b passing through the right end small diameter hole 18 of No. 3, and is connected to the waterway construction block 11C, 11
Similarly, the connecting rod 16 of the joint between D and the bolt 14a passes through the small diameter hole 18 at the left end of the upper connecting plate 12.
and a bolt 15b passing through a small diameter hole 18 at the left end of the lower communication plate 13. Therefore, the arrangement directions of the connecting rods 16 in each joint portion are aligned in the same direction.

However, in another embodiment shown in FIG.
8 and the lower connecting plate 13
It is connected to the bolt 15b passing through the small diameter hole 18 at the right end of the waterway construction block 11B, 11.
The connecting rod 16 at the joint between C is connected to the upper connecting plate 1.
The bolt 14b passes through the eccentric shaft hole 23 of the eccentric seat plate 22 at the right end of the lower connecting plate 13, and the bolt 15 passes through the eccentric shaft hole 23 of the eccentric seat plate 22 at the left end of the lower communication plate 13.
a, and the next waterway construction block 11
The connecting rod 16 of the joint between C and 11D is a bolt 14 passing through a small diameter hole 18 at the left end of the upper connecting plate 12.
a and the right end small diameter hole 18 of the lower communication plate 13
It is connected to the bolt 15b passing through. That is,
The arrangement direction of each connecting rod 16 is reversed for each joint.

In the embodiment described above, the connecting rod 16 is connected to each bolt by welding, but in the embodiment shown in FIGS. 3 and 4, seat plates 27A, 27 are provided at both ends of the connecting rod 16.
B, and bolts 14 to the seat plates 27A and 27B.
Insertion holes 32 of a, 14b, 15a, and 15b are provided.

In the embodiment shown in FIGS. 5 and 6, the seat plate 27
A through hole 33 for fitting the eccentric seat plate 28 is provided in B. In this example, the bolt 14a is attached to the seat plate 27A.
through hole 32 and small diameter hole 18 of upper communication plate 12
The bolt 15b is inserted into the eccentric shaft hole 29 of the eccentric seat plate 28 and the small diameter hole 18 of the lower communication plate 13.

In the embodiment shown in FIG. 7, the seat plate 27B has a stopper protrusion 3 on which the circumferential side of the eccentric seat plate 30 comes into contact.
4, 35 are provided, and the stopper protrusions 34a, 3
A long hole 36 is provided between the holes 4b. In this example, the bolt 14a is inserted into the through hole 32 of the seat plate 27A and the small diameter hole 18 of the upper communication plate 12, and the bolt 15b is inserted into the eccentric shaft hole 31 of the eccentric seat plate 30 and the small diameter hole 18 of the lower communication plate 13. It is inserted.

In the embodiment shown in FIG. 5 and the embodiment shown in FIG. 7, there is no need to bring welding tools to the site, and water channels can be constructed quickly and reliably. Further, by rotating the eccentric seat plates 28 and 30, dimensional errors in the joint members, joint errors during construction, etc. can be easily absorbed and adjusted.

The connecting rod 16 is connected to the bolt 14 as in each of the above embodiments.
A, 14b, 15a, 15b, but can also be connected to the upper and lower communication plates 12, 13.

In any embodiment, the continuous rods 16, 26, 3
6 is not limited to a round bar, but a flat bar, pipe material, wire rod, etc. can be used as appropriate, and the fixing method is not limited to welding or bolting, but other fixing means such as keying, riveting, etc. can also be adopted.

In addition, as in the modification shown in FIG.
They can also be connected and fixed to appropriate locations on the waterway construction block by appropriate intervening means 37 and 38, without being connected to joint members such as connecting plates or fastening bolts.

FIG. 9 shows another modification of the present invention, in which the upper connecting plate 12 of the left channel construction block 11A is
A connecting rod 36 is connected and fixed to the left end bolt 14a of the waterway construction block 11B and the left end bolt 15a of the lower connecting plate 13 of the right channel construction block 11B. Further, a connecting rod 36 is connected to the right end bolt 15b of the lower connecting plate 13 of the right waterway construction block 11B and the right end bolt 15b of the upper connecting plate 12 of the waterway construction block 11C on the right side.
is bonded and fixed.

(Effects of the Invention) As described above, in the present invention, the two adjacent waterway construction blocks 11A and 11B are connected to the eccentric seat plate 22.
The bolts 14a, 14b, 15a, 15b are used to connect the upper and lower connecting plates 12 and 13, and the upper bolt 14a and the lower bolt 15b are connected by a connecting rod 16, so that the left and right water channels can be constructed. The pressing forces acting on the blocks 11A and 11B increase each other, and even if the bolts 14b and 15a are loosely screwed together or the gap between the joint gaps is larger than a predetermined value, the connecting rod 16 Since the horizontal component forces acting on the blocks act on each other as a moderate pressing force, even if the ground is weak and unexpectedly large loads or vibrations are applied, they can be sufficiently resisted, and the row of blocks will not bend or sink. .

Therefore, in the joint structure of the present invention, the span can be set long, and the number of waterway construction blocks arranged between the pedestals 7a and the support piles 7b can be set to 2, 3, 4, or more. . Support pile 7b
Since the number of screws driven in and the number of pedestals 7a installed can be reduced, the cost of constructing the waterway can also be reduced.

[Brief explanation of drawings]

FIG. 1 is a front view of a waterway joint structure according to an embodiment of the present invention, and FIG. 2 is a perspective view of a connecting plate and an eccentric seat plate used in the joint structure of FIG. 1. FIG. 3 is a front view of a waterway joint structure according to another embodiment of the present invention, and FIG. 4 is a perspective view of a connecting rod used in the joint structure shown in FIG. 3. FIG. 5 is a front view of essential parts of a waterway joint structure according to another embodiment of the present invention, and FIG. 6 is a perspective view of a connecting rod used in the joint structure of FIG. 5. FIG. 7 is a perspective view of a connecting rod used in a waterway joint structure according to still another embodiment of the present invention. FIG. 8 is a front view of a waterway joint structure according to a modification of the present invention, and FIG. 9 is a front view of a waterway joint structure according to another modification of the invention. FIG. 10 is a front view showing a conventional waterway joint structure, and FIG. 11 is a plan view of the waterway joint structure shown in FIG. 9a, 9b, 10a, 10b...nut body, 1
1A, 11B, 11C, 11D... Block for waterway construction, 12, 13... Connection plate, 14a,
14b, 15a, 15b... Bolt, 16, 2
6, 36... Continuous rod, 17... Large diameter hole, 18... Small diameter hole, 22, 28, 30... Eccentric seat plate, 23, 2
9, 31...Eccentric shaft hole, 27A, 27B...Seat plate.

Claims (1)

[Claims] 1 Two adjacent waterway construction blocks 11A,
Two upper and lower nut bodies 9a are attached to each joint end of 11B,
9b, 10a, 10b are buried, a large diameter hole 17 and a small diameter hole 18 are provided at the left and right ends of the two upper and lower communication plates 12, 13, and a small diameter hole of the upper communication plate 12 is provided in the nut body 9b of the waterway construction block 11B. Hole 18
Screw in the bolt 14b that has passed through it, and insert the disk portion 2 of the eccentric seat plate 22 into the large diameter hole 17 of the upper connecting plate 12.
2a, and screw the bolt 14a passing through the eccentric shaft hole 23 of the eccentric seat plate 22 into the nut body 9a of the waterway construction block 11A, and attach the lower connecting plate 1 to the nut body 10a of the waterway construction block 11A.
Screw in the bolt 15b passed through the small diameter hole 18 of No. 3, and fit the disk portion 22a of the eccentric seat plate 22 into the large diameter hole 17 of the lower connecting plate 13.
Screw the bolt 15a passing through the eccentric shaft hole 23 into the nut body 10b of the waterway construction block 11B, and
In a waterway joint structure in which two eccentric seat plates 22 are rotated to tighten bolts 14a and 14b with two waterway construction blocks 11A and 11B in close contact, the left end portion 12a of the upper connecting plate 12 is connected to the left side waterway construction block. A bolt 14a fixed to the waterway construction block 11A and a bolt 15b fixed to the right end 13b of the lower communication plate 13 to the right channel construction block 11B are connected by a connecting rod 16, or the upper communication plate 12 A bolt 14b that fixes the right end 12b of the lower connecting plate 13 to the right channel construction block 11B and a bolt 15a that fixes the left end 13a of the lower connecting plate 13 to the left channel construction block 11A are connected by a link 16. A waterway joint structure characterized by: