JPH0457822B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a joint structure for a waterway formed by connecting waterway construction blocks such as secondary concrete products.

[Prior Art] In the conventional waterway joint structure disclosed in JP-A-58-173212, two nut bodies (upper and lower) are embedded and fixed at each joint end of the waterway construction blocks adjacent to each other on the left and right. Bolts passed through the holes at the left and right ends of the two connecting plates are screwed into each of the nut bodies to connect the left and right waterway construction blocks, and a connection is constructed diagonally between the left and right waterway construction blocks. The upper and lower ends of the rod are fixed to the bolts.

[Problems to be Solved by the Invention] This joint structure has advantages such as being able to prevent uneven settlement of block rows in soft ground, allowing a longer span, and reducing the number of pedestals and support piles to be installed.

However, the basic design concept of this joint structure is to suppress as much as possible the misalignment between multiple blocks connected in series and to restrict the vertical movement of the block rows, so a large overload can be avoided. There are difficulties in applying it to areas that are subject to repeated loads.

For example, on a road where a large vehicle or the like travels, the road ground sinks due to excessive overload when the vehicle arrives, and rises again when the vehicle passes in accordance with the ground's unique coefficient of repulsion.

In this way, each time a vehicle passes, the road ground vibrates vertically in waves, and road buried objects are subject to stress in the vertical direction from the road ground. When applied to a crossing waterway, etc., the joint structure has a shape that directly resists the stress. Therefore, the road crossing channel cannot follow the wave phenomenon of the road ground, and the joints and block bodies are subject to damage such as cracks.

Therefore, the object of the present invention is to provide a waterway that can be used in locations where excessive overload is repeatedly applied, such as road-crossing waterways, and also in waterway construction blocks that are becoming larger and heavier. The object of the present invention is to provide a joint structure that can be applied safely and effectively.

[Means for Solving the Problems] The basic structure of the present invention will be described below using reference numerals in the attached drawings. Nut bodies 9a, 9b and 10a, 10b are embedded and fixed, through holes 17, 18 and 19, 20 are provided at each left and right end of the upper and lower two communication plates 12, 13, and waterway construction blocks 11A, B are formed. Natsuto body 9
Through holes 17, 1 of the upper connecting plate 12 are located at a, 9b.
Screw in the bolts 14a and 14b that have passed through the nut bodies 10a and 10a of the waterway construction blocks 11A and B.
Through holes 19 and 20 of the lower communication plate 13 are located at 10b.
This is a waterway joint structure in which the waterway construction blocks 11A, B are connected by screwing in the bolts 15a, 15b passed through them.

Summary of the waterway joint structure according to claim 1 In this basic structure, receiving holes 28a, 28b, 29a, 29b
are provided, and the bolts 14a, 14b and 15a, 1
5b through the receiving holes 28a, 28b and 29a, 29b, and the through holes 17, 18, 19, 20 and at least one of the receiving holes 28a, 28b, 29a, 29b and the bolts 14a, 14b, 15a, 15.
With at least one of the connecting plates 12, 13 and the connecting rods 16A, 16B loosely fitted together and the elastic sealing material 4 being pressed between the waterway construction blocks 11A, 11B, the connecting plates 12, 13 and the connecting rods 16A, 16B are connected to the bolts 14a, 14b, 15
Each bolt was tightened to such an extent that it could rotate around a and 15b.

The gist of the waterway joint structure of claim 2 is that nut bodies 45a, 46a are attached to the upper and lower wall surfaces of the waterway construction block 11A separately from the nut bodies 9a, 10a.
Nut bodies 45b and 46b are buried separately from nut bodies 9b and 10b in the upper and lower wall surfaces of the waterway construction block 11B, and two nuts are installed diagonally between the waterway construction blocks 11A and 11B. A receiving hole 28a is provided at each upper and lower end of the connecting rods 16A and 16B.
28b, 29a, 29b are provided, bolts 47a,
47b and 48a, 48b into the receiving holes 28a, 28b.
and 29a, 29b, and the nut body 45
a, 45b and 46a, 46b, the through holes 17, 18, 19, 20 and the receiving holes 28a, 2
At least one of the bolts 8b, 29a, 29b and at least one of the bolts 47a, 47b, 48a, 48b are loosely fitted, and the waterway construction block 11A,
With the elastic sealing material 4 pressed between 11B,
The connecting plates 12, 13 and the connecting rods 16A, 16
B is that the bolts 14a, 14b, 15a, 15b and bolts 47a, 47b, 48a, 48b are tightened to such an extent that they can rotate.

[Function] In the joint structure of the present invention, when the waterway installation ground vibrates up and down due to excessive overload, the outer peripheral surfaces of the bolts 14a, 14b, 15a, 15b and the through holes 17, 18, 19, 20 and receiving holes 28a, 28
b, 29a, 29b due to the play that exists between the inner circumferential surfaces of the connecting plates 12, 13 and the connecting rod 16.
A, 16B are the bolts 14a, 14b, 15
A plurality of waterway construction blocks 11A, which are rotatable around a and 15b and connected in series;
11B... uses the joint portion as a joint, and waves up and down in response to the movement of the laying ground.

[Embodiment] In the embodiment shown in FIGS. 1, 3, and 4, the nut bodies 9a, 9b buried in the waterway construction blocks 11A and 11B are fixed to the anchor reinforcing bars 24, and the nut bodies 10a, 10b are fixed to the anchor reinforcing bars 24. is anchor reinforcing bar 2
It is fixed to 5. Seat plates 26 and 27 are fixed to the upper and lower ends of each connecting rod 16, and a receiving hole 2 is attached to the seat plate 26.
8a, 29 are provided, and receiving holes 28a, 29 are provided in the seat plate 27.
b is provided. The through holes 17, 18 and 19, 20 of the communication plates 12, 13 are both circular holes. Seat plate 2 fixed to one of the connecting rods 16A
The thickness of 6, 27 is thicker than the thickness of the seat plate 26, 27 fixed to the other connecting rod 16B by the diameter of the connecting rod 16B, and the thickness of the two connecting rods 16A, 16
B intersect without interfering with each other.

The bolt 14a is inserted into the receiving hole 2 of the seat plate 26 of the connecting rod 16A.
8a and the through hole 17 of the upper communication plate 12, and is screwed into the nut body 9a of the waterway construction block 11A. The bolt 14b is inserted into the receiving hole 28b of the seat plate 26 of the connecting rod 16B and the through hole 18 of the upper connecting plate 12, and then the bolt 14b is inserted into the waterway construction block 11B.
is screwed into the nut body 9b.

The bolt 15a is inserted into the receiving hole 2 of the seat plate 27 of the connecting rod 16B.
9b and the through hole 19 of the lower communication plate 13, and then insert the nut body 10a of the waterway construction block 11A.
is screwed into. Bolt 15b is a continuous rod 16A
The receiving hole 29a of the seat plate 27 and the lower connecting plate 13
The waterway construction block 11 is inserted into the through hole 20 of the waterway construction block 11.
It is screwed into the nut body 10b of B.

In the embodiments shown in FIGS. 3 and 5, the nut bodies 45a and 46a of the waterway construction block 11A are arranged with their positions shifted in the lateral direction from the nut bodies 9a and 10a, and are fixed to the anchor reinforcing bars 32 and 33. ing. Nut body 45 of waterway construction block 11B
b, 46b are also arranged with their positions shifted in the lateral direction of the nut bodies 9b, 10b, and the anchor reinforcing bars 32, 33
is fixed to. The through holes 17 and 18 of the communication plates 12 and 13 are constituted by circular holes, and another through hole 1
Reference numerals 9 and 20 are horizontally elongated holes. Each row 16
Seat plates 26 and 27 are fixed to the upper and lower ends of A and 16B, and each seat plate 26 and 27 has a receiving hole 28a and 28b.
and 29a and 29b are provided.

The bolt 14a is inserted into the through hole 1 of the upper connecting plate 12.
7 and screwed into the nut body 9a of the waterway construction block 11A. The bolt 14b is inserted into the through hole 18 of the upper communication plate 12 and screwed into the nut body 9b of the waterway construction block 11B. The bolt 15a is attached to the lower connecting plate 13
The waterway construction block 11 is inserted through the through hole 19 of the waterway construction block 11.
It is screwed into the nut body 10a of A. The bolts 15b are inserted into the through holes 20 of the lower connecting plate 13, and then the bolts 15b are inserted into the nut bodies 10 of the waterway construction block 11B.
It is screwed into b.

The bolt 47a is inserted into the receiving hole 2 of the seat plate 26 of the connecting rod 16A.
8a and screwed into the nut body 45a of the waterway construction block 11A. Bolt 47b
is inserted into the receiving hole 28b of the seat plate 26 of the connecting rod 16B, and the nut body 45b of the waterway construction block 11B is inserted.
is screwed into. Bolt 48a is a continuous rod 16B
It is inserted into the receiving hole 29b of the seat plate 27 and screwed into the nut body 46a of the waterway construction block 11A. The bolt 48b is inserted into the receiving hole 29a of the seat plate 27 of the connecting rod 16A, and the bolt 48b is inserted into the waterway construction block 11B.
It is screwed into the nut body 46b of. The rest of the structure is the same as the embodiment shown in FIG.

In the embodiment shown in FIG.
The through holes 17, 18 and 19, 20 of Nos. 2 and 13 are both horizontally elongated holes. Receiving hole 2 of connecting rod 16
Similarly, the holes 8 and 29 can be constructed of large-diameter circular holes or horizontally elongated holes. As shown in FIG. 7, the connecting rod 16 may be constructed entirely of a strip.

In the embodiment shown in FIGS. 8 and 10, an eccentric seat plate 33 is used as the length adjustment means, and the connecting rod 16
The seat plate 27 fixed to the lower end of A, 16B has a large diameter hole 3 into which the disk portion 33a of the eccentric seat plate 33 is fitted.
2 is provided.

The bolt 14a is inserted into the receiving hole 2 of the seat plate 26 of the connecting rod 16A.
8a and the through hole 17 of the upper communication plate 12, and is screwed into the nut body 9a of the waterway construction block 11A. The bolt 14b is inserted into the receiving hole 28b of the seat plate 26 of the connecting rod 16B and the through hole 18 of the upper connecting plate 12, and then the bolt 14b is inserted into the waterway construction block 11B.
is screwed into the nut body 9b.

The bolt 15a is inserted through the eccentric shaft hole 34 of the eccentric seat plate 33 of the connecting rod 16B and the through hole 19 of the lower communication plate 13, and is screwed into the nut body 10a of the water channel construction block 11A. The bolt 15b is inserted through the eccentric shaft hole 34 of the eccentric seat plate 33 of the connecting rod 16A and the through hole 20 of the lower communication plate 13, and is screwed into the nut body 10b of the waterway construction block 11B. The rest of the structure is the same as the embodiment shown in FIG.

In the embodiment shown in FIGS. 9 and 11, an eccentric seat plate 38 is used as the length adjustment means, and each link 1
The seat plate 27 fixed to the lower end of 6A, 16B has
Stopper protrusions 36, 3 that the circumferential surface of the eccentric seat plate 38 comes into contact with
7 are provided in parallel on both sides of the horizontally elongated hole 35.

The bolt 14a is inserted into the receiving hole 2 of the seat plate 26 of the connecting rod 16A.
8a and the through hole 17 of the upper communication plate 12, and is screwed into the nut body 9a of the waterway construction block 11A. The bolt 14b is inserted into the receiving hole 28b of the seat plate 26 of the connecting rod 16B and the through hole 18 of the upper connecting plate 12, and then the bolt 14b is inserted into the waterway construction block 11B.
is screwed into the nut body 9b.

The bolt 15a is inserted into the eccentric shaft hole 39 of the eccentric seat plate 38 of the connecting rod 16B, the horizontally elongated hole 35 of the seat plate 27, and the through hole 19 of the lower communication plate 13, and then screwed into the nut body 10a of the waterway construction block 11A. It's included. The bolt 15b is inserted into the eccentric shaft hole 39 of the eccentric seat plate 38 of the connecting rod 16A, the horizontally elongated hole 35 of the seat plate 27, and the through hole 20 of the lower communication plate 13, and then screwed into the nut body 10b of the waterway construction block 11B. It's included. The rest of the structure is the same as the embodiment shown in FIG.

In the embodiment shown in FIGS. 12 and 13, one connecting rod 16B has an upper portion 16a and an intermediate portion 16c.
and a lower portion 16b.
Reinforcing plate portions 41, 42 and rising plate portions 40 are welded to the upper and lower ends of the intermediate portion 16c consisting of a strip plate, and each rising plate portion 40 is provided with through holes 23 facing each other in a straight line. be.

A male screw portion 21 is provided at each connecting end between the upper portion 16a and the lower portion of the connecting rod 16B, and a retaining nut 22 is screwed into the male screw portion 21 which is loosely fitted into the through hole 23. ing. By rotating the nut 22, the entire length of the divided connecting rod 16B is adjusted to expand or contract. Other configurations are similar to the embodiment shown in FIG. 11.

In the embodiment shown in FIGS. 14 and 15, both of the two connecting rods 16A and 16B are connected to the upper portion 16a.
The upper portion 16a and the lower portion 16b are connected via a common cross member 49 made of a flat plate.

Reinforcing plate parts 41 and 42 and a rising plate part 40 are welded to the four corner parts of the cross member 49, and a through hole 44 is provided in each rising plate part 40 so as to be diagonally opposed to each other. Each connecting end of the upper portion 16a and lower portion of each connecting rod 16A, 16B has a male screw portion 2.
1, and a retaining nut 22 is screwed into the male screw portion 21 loosely fitted into the through hole 44. By rotating the nut 22,
The entire length of each of the divided connecting rods 16A, 16B is adjusted for expansion and contraction. The other configurations are the same as those of the previous embodiment.

In the embodiment shown in FIG. 16, the common cross member 49 is composed of a cross-shaped flat plate, and reinforcing plate parts 41, 42 and a rising plate part 40 are welded to the four technical end parts, and each rising part The plate portion 40 is provided with through holes 44 facing each other in a straight line. Each link 16A,
A male screw portion 21 is provided at each connecting end between the upper portion 16a and the lower portion of the 16B, and a retaining nut 22 is provided on the male screw portion 21 loosely fitted into the through hole 44.
are screwed together. By rotating the nut 22, each of the divided connecting rods 16A, 1
The entire length of 6B can be expanded or contracted. The other configurations are the same as those of the previous embodiment.

In the embodiment shown in FIGS. 17 to 20, the common cross member 49 is formed into a short cylindrical body, and a reinforcing cover plate 43 is welded to an opening on one side thereof. Four through holes 44 are provided in the peripheral wall of the cross member 49. Upper part 1 of each connecting rod 16A, 16B
A male screw portion 21 is provided at each connecting end of the lower portion 6a, and a retaining nut 22 is screwed into the male screw portion 21 loosely fitted into the through hole 44. By rotating the nut 22, the entire length of each of the divided connecting rods 16A, 16B is adjusted to expand or contract. The other configurations are the same as those of the previous embodiment.

In any of the embodiments, the connecting rod is not limited to a round bar, and flat bars, pipe materials, wire rods, etc. can be used as appropriate, and the fixing method is not limited to welding or bolting, but other methods such as keying, riveting, etc. Fixing means can also be employed.

[Effects of the Invention] As described above, in the waterway joint structure of the present invention as described in claim 1, the waterway construction blocks 11A, 11B pass through the through holes 17, 18 and 19, 20 of the upper and lower communication plates 11, 12. Bolts 14a, 1 screwed into nut bodies 9a, 9b and 10a, 10b of
4b, 15a, 15b are all or partially connected to corresponding through holes 17, 18, 19, 20 and connecting rods 16A, 1
The bolts are loosely fitted into the receiving holes 28a, 28b and 29a, 29b of 6B, and the bolts are tightened to such an extent that the connecting plates 12, 13 and the connecting rods 16A, 16B can rotate. When an overload load is repeatedly applied, the row of blocks for constructing a waterway follow the wave motion of the laying ground and wave up and down at each joint, thereby avoiding damage to the joints and block bodies.

Further, two connecting rods 16A, 16B extending diagonally between the waterway construction blocks 11A, 11B are attached to the waterway construction blocks 11A, 11B by the bolts 14a, 14b and 15a, 15b. Therefore, waterway construction blocks 11A, 11
B can accurately prevent excessive subsidence or uplift beyond a certain limit. Therefore, the waterway construction block 11
The elastic sealing material 4 provided between the joining end surfaces 7 and 8 of A and 11B is maintained under sufficient pressure, and the sealing materials 4 are in close contact with each other, or the sealing material 4 and the joining end surfaces 7, 8 are maintained in a sufficiently compressed state.
8, the water-stopping function is firmly maintained.

Furthermore, in this waterway joint structure, the tension of the diagonally spanning connecting rods 16A and 16B suppresses subsidence or uplift beyond a certain limit, so the span can be set long, and the cradle 2 installed on the installation base 1 The number of waterway construction blocks placed between the support piles 3 and 3 is set to 2, 3,
The number can be four or more.
Further, the number of driven support piles 3 and the number of pedestals 2 installed can be reduced, so the construction cost of the waterway can be reduced.

In addition, since the two connecting rods 16A and 16B are spanned between the waterway construction blocks 11A and 11B,
The supporting force of the connecting rods is doubled, and a waterway joint structure can be obtained that can be safely and effectively applied to large and heavy waterway construction blocks.

In the waterway joint structure according to claim 2, the bolts 14a are screwed into the nut bodies 9a, 9b and 10a, 10b of the waterway construction blocks 11A, 11B from the through holes 17, 18, 19, 20 of the communication plates 11, 12. , 14b and 15a, 15b are loosely fitted into the corresponding through holes 17, 18, 19, 20, while the receiving holes 28 of the continuous rods 16A, 16B
Bolts 47a, 4 are screwed from a, 28b and 29a, 29b into the nut bodies 45a, 45b and 46a, 46b of the waterway construction blocks 11A, 11B.
All or part of 7b and 48a, 48b are loosely fitted into the corresponding receiving holes 28a, 28b, 29a, 29b, and each connecting plate 12, 13 and each connecting rod 16
Since each of the bolts is tightened to such an extent that A and 16B can rotate, not only the necessary and sufficient follow-up deformability and supporting force are obtained as in the waterway joint structure of claim 1, but also the connection plates 12 and 13 are The tensile force acting on the nut bodies 9a, 9b, 10a, 10b is applied to the nut bodies 9a, 9b, 10a, 10b, while the tensile force acting on each of the connecting rods 16A, 16B is distributed and loaded on the nut bodies 45a, 45b, 46a, 47b. block 11A,
Excessive concentration of tensile stress on 11B is avoided,
Even in heavy blocks, damage to the joint ends and occurrence of cracks can be accurately prevented.

In the waterway joint structure according to claim 3, one of the two connecting rods 16A, 16B is divided into an upper portion 16a, a lower portion 16b, and an intermediate portion 16c, and the upper portion 16a and the lower portion 16b are separated. Since it is connected to the intermediate portion 16c so that it can expand and contract in the length direction, the entire length of the divided connecting rod 16A or 16B is finely adjusted so that the waterway construction blocks 11A and 11B are brought into close contact with each other. Or by tensioning 16B, the waterway construction block 11
It is possible to more accurately ensure the close contact between A and 11B.

Further, in the waterway joint structure according to claim 4, both of the connecting rods 16A and 16B are divided into an upper portion 16a and a lower portion 16b, and each upper portion 16
a and the lower portion 16b are connected to a common cross member 49 so as to be extendable and retractable in the length direction, so that the two continuous rods 1
By finely adjusting the overall length of the waterway construction blocks 11A and 11B and tensioning each of the connecting rods 16A and 16B, it is possible to more accurately ensure the tightness of the waterway construction blocks 11A and 11B.

Furthermore, in the waterway joint structure according to claim 5, the upper portion 16a of the connecting rod 16A or 16B which is divided into parts.
A male screw portion 21 is provided at the connecting end of the lower portion 16b, and a through hole 23 is provided in the intermediate portion 16c.
Since the retaining nut 12 is screwed onto the male threaded portion 21 inserted into the threaded part 3, the entire length of the divided connecting rod can be easily adjusted by turning the nut 22, and the connecting rod can be adjusted to the required length. can make you nervous.

Further, in the waterway joint structure according to claim 6, the upper portion 16a and the lower portion 1 of each of the connecting rods 16A, 16B.
A male screw portion 21 is provided at the connecting end of the cross member 49, a through hole 44 is provided in the cross member 49, and a retaining nut 22 is screwed into the male screw portion 21 inserted into the through hole 44, so turn the nut 22. Continuation 16
The overall length of A and 16B can be easily adjusted, and each link can be tensioned to the necessary and sufficient extent.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a waterway joint structure before construction according to an embodiment of the present invention, and FIG. 2 is a front view of the waterway joint structure after construction. FIG. 3 is a front view of main parts of a waterway joint structure according to another embodiment of the present invention. FIG. 4 is a longitudinal cross-sectional view showing a loosely fitted state of the bolt and the through hole of the connecting plate in the waterway joint structure shown in FIG. 2. FIG. 5 is a longitudinal cross-sectional view showing a loosely fitted state of the bolt and the through hole of the connecting plate in the waterway joint structure shown in FIG. 3. FIG. 6 is a longitudinal cross-sectional view showing a loosely fitted state of a bolt and a through hole of a connecting plate of a waterway joint structure according to still another embodiment of the present invention. FIG. 7 is a perspective view of another embodiment of the connecting rod used in the waterway joint structure of the present invention. 8 and 9 are perspective views of still another connecting rod used in the waterway joint structure of the present invention. FIG. 10 is a front view of the main part of the embodiment using the connecting rod shown in FIG.
The figure is a front view of essential parts of an embodiment using the connecting rod shown in FIG. 9. FIG. 12 is a front view of main parts of a waterway joint structure according to another embodiment of the present invention, and FIG. 13 is a sectional view taken along the line A--A in FIG. 12. FIG. 14 is a front view of a main part of another connecting rod used in the waterway joint structure of the present invention, and FIG. 15 is a sectional view taken along the line B--B in FIG. 14. FIG. 16 is a front view of a main part of yet another connecting rod used in the waterway joint structure of the present invention.
FIG. 17 is a front view of main parts of a waterway joint structure according to still another embodiment of the present invention. FIG. 18 is a front view of main parts of a waterway joint structure according to still another embodiment of the present invention. FIG. 19 is a front view of the connecting rod used in the waterway joint structure shown in FIGS. 17 and 18, and FIG. 20 is a sectional view taken along the line CC in FIG. 19. 1... Laying base, 2... pedestal, 3... support pile,
4... Fixed sealing material, 5, 6... Receiving groove, 7, 8...
...joint end surface, 9a, 9b, 10a, 10b...nut body, 11A, 11B...block for waterway construction, 12, 13...connection plate, 14a, 14
b, 15a, 15b... bolt, 16... connecting rod,
17, 18...Through hole, 19,20...Through hole, 21
... Male thread, 22 ... Removal locking nut, 23 ...
Through hole, 24, 25... Anchor reinforcing bar, 26, 27
... Seat plate, 28a, 28b ... Receiving hole, 29a, 2
9b... Receiving hole, 45a, 45b... Nut body, 4
6a, 46b... nut body, 47a, 47b...
Bolts, 48a, 48b...Bolts, 49...Cross members.

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 and 10b are buried and fixed, and through holes 1 are made at each left and right end of the upper and lower two communication plates 12 and 13.
7, 18 and 19, 20, and the bolts 14 are passed through the through holes 17, 18 of the upper connecting plate 12 through the nut bodies 9a, 9b of the waterway construction blocks 11A, B.
Screw a and 14b into waterway construction block 11
Bolts 15 passed through the through holes 19 and 20 of the lower connecting plate 13 through the nut bodies 10a and 10b of A and B
Screw in a and 15b and create waterway construction block 1
In the waterway joint structure connecting waterway construction blocks 11A and 11B, receiving holes 28a, 28b and 29a, 29b are provided at the upper and lower ends of two connecting rods 16A, 16B diagonally installed between waterway construction blocks 11A, 11B. , the bolts 14a, 14b and 15a, 15b
through the receiving holes 28a, 28b and 29a, 29b, and at least one of the through holes 17, 18, 19, 20 and the receiving holes 28a, 28b, 29a, 29b.
and the bolts 14a, 14b, 15a, 15b
At least one of the connecting plates 12, 13 and the connecting rod 16 are loosely fitted, and the elastic sealing material 4 is pressed between the waterway construction blocks 11A and 11B.
A, 16B are bolts 14a, 14b, 15a, 1
A waterway joint structure characterized in that each bolt is tightened to such an extent that it can rotate around 5b. 2 Two adjacent waterway construction blocks 11A,
Two upper and lower nut bodies 9a are attached to each joint end of 11B,
9b, 10a and 10b are buried and fixed, and through holes 1 are made at each left and right end of the upper and lower two communication plates 12 and 13.
7, 18 and 19, 20, and the bolts 14 are passed through the through holes 17, 18 of the upper connecting plate 12 through the nut bodies 9a, 9b of the waterway construction blocks 11A, B.
Screw a and 14b into waterway construction block 11
Bolts 15 passed through the through holes 19 and 20 of the lower connecting plate 13 through the nut bodies 10a and 10b of A and B
Screw in a and 15b and create waterway construction block 1
In the waterway joint structure connecting waterway construction blocks 1A and 1B, nut bodies 45a, 45b and 46a, 46b are buried separately from the nut bodies 9a, 9b and 10a, 10b in the waterway construction blocks 11A, 11B. Receiving holes 28a, 28b and 29a, 29b are provided at the upper and lower ends of the two connecting rods 16A, 16B diagonally installed between 11A, 11B, and bolts 47a, 47b and 48a, 48b are inserted into the receiving holes 28a, 28b. Through 28b and 29a, 29b,
Screwed into the nut bodies 45a, 45b and 46a, 46b, and at least one of the through holes 17, 18, 19, 20 and the receiving holes 28a, 28b, 29a, 29b and the bolts 47a, 47b, 48a, 4
8b, and the elastic sealing material 4 is pressed between the waterway construction blocks 11A, 11B, the connecting plates 12, 13 and the connecting rods 16A, 16B are connected to the bolts 14a, 14b, 15.
a, 15b and bolts 47a, 47b, 48a,
A waterway joint structure characterized in that each bolt is tightened to such an extent that it can rotate around 48b. 3 One of the two diagonally intersecting rods 16 is connected to the upper part 16a, the lower part 16b and the middle part 16c.
The waterway joint structure according to claim 1 or 2, characterized in that the upper part 16a and the lower part 16b are connected to the intermediate part 16c so as to be expandable and contractible in the length direction. 4 Both of the two connecting rods 16, 16 are attached to the upper part 16
according to claim 1 or 2, characterized in that it is divided into an upper portion 16a and a lower portion 16b, and each upper portion 16a and lower portion 16b are connected to a common cross member 49 so as to be extendable and contractible in the length direction. waterway joint structure. 5 Upper part 16a and lower part 16b of the connecting rod 16
A male screw part 21 is provided at the connecting end of the intermediate part 16.
4. The waterway joint structure according to claim 3, wherein a through hole 23 is provided in the through hole 23, and a retaining nut 22 is screwed onto the male screw portion 21 inserted into the through hole 23. 6 Upper part 16a and lower part 16b of the connecting rod 16
A male screw portion 21 is provided at the connecting end of the cross member 4.
5. The waterway joint structure according to claim 4, wherein a through hole 44 is provided in the through hole 44, and a retaining nut 22 is screwed onto the male screw portion 21 inserted into the through hole 44.