JPH0432401Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a concrete product to which a connector is attached.

<Prior art> Conventionally, in concrete products such as U-shaped grooves for connecting multiple blocks to form waterways, drainage ditches, etc., nuts were buried in the outer wall surface at positions near adjacent connecting end surfaces. something is generally known.

In order to connect multiple concrete products with the nuts embedded in them to form a waterway or drainage ditch, a connecting plate is attached that spans the outer wall surface of adjacent concrete products, and bolts are inserted from this connecting plate side. Each of these concrete products was hinged to the nut to connect adjacent concrete products to form a waterway or drainage ditch.

However, with the conventional concrete products mentioned above, the bolts and nuts must be fitted each time at the construction site, which is extremely time-consuming. In addition, the positions of the holes in the connecting plate and the holes in the nuts embedded in the concrete product do not easily match, and this also causes work time and trouble, as it is necessary to have a tool for tightening the bolts. It was hot.

Furthermore, connecting plates and bolts, which are generally made of iron, are exposed and installed on the outside of the concrete product, and therefore corrode over a long period of time, posing a problem in their durability.

Furthermore, when connecting the conventional concrete products, in addition to using the connecting plate, a joint material was inserted into the connecting end surfaces of adjacent concrete products, but in some cases, the joint material and the concrete products were connected. In some cases, the adhesion was insufficient, and it was not possible to ensure the waterproofness of the connection point.

<Purpose of the invention> Thus, the present invention has been devised to address the above-mentioned drawbacks and problems of the conventional art. It is an object of the present invention to provide a concrete product with a connector that does not lose its durability even when used for a long period of time, and furthermore, can reliably prevent water leakage from the connection point when used in a drainage ditch or the like. This is the purpose.

<Structure of the invention> The concrete product with a connector according to the invention includes a buried piece 3 buried along the middle position of the solid part of the side end face 13 of the concrete product over almost the entire circumference.
and a connecting piece 2 formed integrally with the buried piece 3, protruding outward from the side end face 13, and having a plurality of connecting holes 4 bored therein, and having a U-shaped cross section provided at one end of the concrete product. A connecting member 1 which is formed by embedding a receiving member 8 in which a hollow part having the same cross-sectional shape as the connecting piece 2 is formed in the side end surface 14 on the other end side of the concrete product, and which fits into the connecting piece 2. grooves 7; communication holes 9 formed on the side wall surface of the concrete product on the side of the connection grooves 7 and communicating with the connection holes 4 through the receiving member 8; and communication holes 9 formed on the side wall surface of the concrete product on the side wall surface of the concrete product. ... and a locking rod 10 inserted into the connecting hole 4.

<Example> The present invention will be described below based on an example shown in the drawings.

Figures 1 to 3 show a concrete U-shaped groove A according to the present invention. A connector 1 is embedded in one end of this U-shaped groove A.

This connector 1 is formed of a plate material matching the cross-sectional shape of the U-shaped groove A.

The connector 1 has an embedded piece 3 and a connecting piece 2, and the embedded piece 3 is located at an intermediate position (intermediate position in the thickness direction) of the solid portion of the side end surface 13 on one end side of the U-shaped groove A. The buried piece 3 is buried along almost the entire circumference.
The connecting piece 2 integrally formed with the connecting piece 2 projects outward from the side end surface 13.

As shown in FIGS. 2 and 3, the connecting piece 2 is provided with a plurality of connecting holes 4 at predetermined positions.

Note that it is desirable that the surface of the connecting piece 2 be formed into a rough surface.

In addition, a plurality of through holes 5 are bored in the buried piece 3, and anchor bars 6 are connected to the ends of the buried piece 3, and the through holes 5 and the anchor bars 6...
serves as an anchor.

By the way, the material of the connector 1 is not limited at all, and may be made of a metal member, a hard rubber material, a synthetic resin member, or the like.

Further, a connecting groove 7 is formed on the side end surface 14 on the other end side of the U-shaped groove A, into which the connecting piece 2 protruding from the one end side is fitted.

This connecting groove 7 connects a receiving member 8 having a hollow portion having the same cross-sectional shape as the connecting piece 2 to the side end surface 14.
It is formed by being buried in the side.

Reference numerals 6 indicate anchor lines of the receiving member 8.
By the way, the U-shaped groove A in which the connecting groove 7 is formed
The outer wall surface on the other end side is formed with a plurality of through holes 9 that pass through the receiving member 8 and communicate with a plurality of connecting holes 4 that are bored in the connecting piece 2 of the connector 1. .

Now, to explain the connection of the U-shaped grooves A, A, one end side and the other end side of the U-shaped grooves A, A are butted against each other. Then, the connecting piece 2 protruding from one end side,
It fits into the connecting groove 7 formed on the other end side.

It is desirable to use various packing materials during this connection.

Next, the connecting holes 4 bored in the connecting piece 2 are made to communicate with the through holes 9 on the side of the connecting groove 7, and the locking rod 10 is inserted into both the holes 4 and 9 from the side end surface side.

After that, mortar may be filled from the through hole 9 side to connect and fix.

Drawings 4 and 5 show a second embodiment of the present invention. In the drawings, reference numeral B indicates a concrete sewer manhole.

A connector 1 having a substantially league-shaped cross section is provided at one end of the manhole B.

The connector 1 has a buried piece 3 buried along an intermediate position of the solid portion of the side end surface 13 of the manhole B, and a connecting piece 2 that projects outward from the side end surface 13.

A plurality of connecting holes 4 are bored at predetermined positions of the connecting piece 2.

Further, a receiving member 8 is buried in the other end side of the manhole B, and a connecting groove 7 that fits with the connecting piece 2 is bored.

Communication holes 9 that penetrate the receiving member 8 and communicate with the connection hole 4 are formed on the outer peripheral surface on the connection groove 7 side.

By the way, in this embodiment, it is preferable that the tip of the connecting piece 2 is made into a serrated tip 11, and a packing material 12 such as a rubber material is fitted into the bottom of the connecting strip 7 on the other end side. With this configuration, when the manholes B and B are connected in this embodiment, the pointed end 11 of the connecting piece 2 will surely come into close contact with the packing material 12 in the connecting groove 7, thereby preventing water leakage at the connecting part. This has the advantage that it can be prevented more reliably.

The connection method is the same as in the previous embodiment, and the connection piece 2 on one end side is inserted into the connection groove 7 formed on the other end side.

Next, the through hole 9 on the connecting groove 7 side and the connecting piece 2
The connecting holes 4 are communicated with each other, and the locking rods 10 are inserted into both holes 9 and 4 from the outer peripheral surface side, and then mortar is filled.

Finally, the connecting portion is filled with a joint material such as mortar to complete the connecting work.

Next, FIGS. 6 and 7 show a third embodiment of the present invention.

In this embodiment, the present invention is applied to a curb block C.

In this embodiment as well, the connector 1 is buried in one end of the curb block C with the connecting piece 2 protruding outward, and the receiving member 8 is buried in the other end so that the connecting piece 2 is buried. A connecting groove 7 that fits is formed.

The method of connecting the curb blocks C is also the same as in the embodiment described above.

Next, FIG. 8 and FIG. 9 show a fourth embodiment of the present invention. In this embodiment, the present invention is applied to a flow channel block D.

In this embodiment as well, the connecting piece 2 of the connecting tool 1 is fitted into the connecting groove 7 (receiving member 8), the locking rod 10 is inserted into the through hole 9 and the connecting hole 4 from the side end surface side, and then the mortar is applied. It is configured to be connected by filling it with.

<Effects of the invention> As explained above, according to the invention, the connecting piece of the connector provided on one end of a concrete product can be inserted into the connecting groove formed on the other end of another concrete product. By simply inserting the locking rod into the communication hole formed in the side wall surface on the side of the connecting groove, it is possible to connect and connect concrete products easily and accurately without performing positioning or the like.

Furthermore, since fasteners such as bolts and nuts and tools such as spanners are not used in connection construction, workability is good and work time can be significantly shortened.

In addition, the buried piece forming the connector is buried along the approximately center line position of the side end surface of the concrete product, and the connecting groove that fits therein is formed of a receiving member, and the connector and connector Since the grooves are formed over substantially the entire circumference of the side end face of the concrete product, the strength of the connection portion can be increased.

For this reason, it is difficult to deform even when external forces such as bending or torsion are applied to the connection part, making it suitable for construction on soft ground or when high strength is required in the event of an earthquake, and durable even for long-term use. No loss of sex.

Furthermore, even when the concrete product is used for drainage ditches, water leakage from the connection points can be reliably prevented.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the first embodiment of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a side view of Fig. 1, and Fig. 4 is a perspective view showing the second embodiment. , FIG. 5 is a plan view of FIG. 4, FIG. 6 is a perspective view of the third embodiment, FIG. 7 is a side view of FIG. 6, and FIG. 8 is a perspective view of the fourth embodiment. FIG. 9 is a plan view of FIG. 8. 1... Connector, 2... Connection piece, 3... Buried piece,
4... Connection hole, 5... Through hole, 6... Anchor bar,
7... Connection groove, 8... Receiving member, 9... Communication hole, 10... Locking rod, 11... Point end, 12...
Packing material, 13, 14... side end surface, A...U
Gutter, B...Sewerage manhole, C...Curb block, D...Waterway block.

Claims (1)

[Scope of Claim for Utility Model Registration] Buried piece 3 buried along the middle position of the solid part of the concrete product side end face 13 over almost the entire circumference
and a connecting piece 2 formed integrally with the buried piece 3, protruding outward from the side end surface 13, and having a plurality of connecting holes 4 bored therein, and a connecting tool 1 provided on one end side of the concrete product. , a connecting groove 7 which is formed by embedding a receiving member 8 in which a hollow part having the same cross-sectional shape as the connecting piece 2 is formed in the side end surface 14 on the other end side of the concrete product, and which fits into the connecting piece 2; Communication holes 9 are formed on the side wall surface of the concrete product on the side of the connecting groove 7 and penetrate through the receiving member 8 and communicate with the connection holes 4. A concrete product with a connector, characterized in that it has a locking rod 10 inserted into...