JPH10174985A - Septic tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent transfer and deformation in the main body of a partition and to simplify molding by inserting a reinforcing material in the gap between the upper part of the partition and the surface of a main body inner wall and fixing the material. SOLUTION: The inside of a main body 1 is partitioned into an anaerobic treatment chamber, an aerobic treatment chamber, a precipitation separation chamber, a disinfection chamber, etc., by FRP partitions 2. A corrugated plate 22 is set in a frame 21 to form the partition 2. An FRP reinforcing material 3 is composed of a longitudinal piece 31 and a lateral piece 32 projectingly formed in the intermediate part of the piece 31, and a recession 33 is formed below the base of the piece 32. The piece 31 is bonded to the side of a recessed dam part 23 formed in the upper middle part of the partition 2. The projection of the opening angular part of the dam part 23 is inserted into the recession 33 of the material 3, and the upper end of the piece 31 is inserted into a recession formed by the lower end outer surface of the short cylinder part 12 of a manhole 11 and the upper end inner surface of a slanted wall 13. In this way, the material 3 is inserted into the gap between the partition 1 and the main body 1 and fixed, earth pressure from above etc., are dispersed, and the transfer and deformation of the partition 2 can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a septic tank, and more particularly to a septic tank provided with a partition in a main body.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open No. 2-112399.
As described in Japanese Unexamined Patent Publication, a septic tank in which a partition is provided in the main body, and the inside of the main body is partitioned by the partition into an anaerobic treatment chamber, an aerobic treatment chamber, a sedimentation separation chamber, a disinfection chamber, etc. I have.

[0003]

However, in the conventional septic tank, the partition wall is attached only at one or two places on the side inner wall surface or the upper inner wall surface of the main body, and the earth pressure is applied above the main body. A load is applied to the bulkhead itself or the upper part of the main body due to the case or water pressure, etc.
The upper part of the main body or the partition may be deformed.

In order to prevent such movement of the partition wall and deformation of the main body or the partition wall, it is conceivable to embed an angle reinforcing material in the partition wall or to protrude a reinforcing rib. However, molding is troublesome or cost is high. It is inevitable to become.

The present invention has been made in view of such problems in the conventional septic tank, and an object of the present invention is to solve the problems in the conventional septic tank and to move the partition in the main body. Another object of the present invention is to provide a septic tank which is free from the risk of deformation of the upper part of the main body or the partition wall, and which does not require complicated molding or cost increase.

[0006]

In order to achieve the above object, a septic tank according to the present invention has a partition wall provided in a main body, and a reinforcing material is inserted and fixed in a gap between an upper part of the partition wall and an inner wall surface of the main body. It is characterized by having.

In the present invention, the materials of the main body, the partition and the reinforcing material are not particularly limited, and those which have been conventionally used as the material of the main body and the partition of the septic tank can be used. Rigid vinyl chloride resin,
Those having a certain degree of mechanical strength and high corrosion resistance, such as FRP, are preferable.

[Operation] In the septic tank of the present invention, since the reinforcing material is inserted and fixed in the gap between the upper part of the partition and the inner wall surface of the main body, even if earth pressure or the like is applied from above, the load is applied via the reinforcing material. Dispersed by body and partition.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway perspective view showing an essential part of an example of the septic tank of the present invention, FIG. 2 is a partially cutaway perspective view showing an enlarged part A of FIG. 1, and FIG. 3 is the present invention shown in FIGS. It is sectional drawing of the principal part of the septic tank.

1 to 3, reference numeral 1 denotes a septic tank main body made of FRP; 11, a manhole provided above the main body 1;
Reference numeral 2 denotes a short cylindrical portion provided in the manhole 11, and reference numeral 13 denotes an inclined wall that supports the short cylindrical portion 12. Reference numeral 2 denotes a partition made of FRP provided in the main body 1 so that the inside of the main body 1 is partitioned by the partition 2 into an anaerobic treatment room, an aerobic treatment room, a sedimentation separation room, a disinfection room, and the like. Has become. The partition 2 is configured such that a corrugated plate 22 is provided in a frame 21. 2
Reference numeral 3 denotes a concave weir provided at the upper center of the partition 2.

Reference numeral 3 denotes a reinforcing member made of FRP. The reinforcing member 3 is configured such that a horizontal piece 32 protrudes from a middle portion of a vertical piece 31 and a concave portion 33 is provided below a base of the horizontal piece 32. .
The vertical piece 31 of the reinforcing material 3 is adhered to the side surface of the concave weir 23 of the partition 2, and the convex part 231 at the corner of the opening of the concave weir 23 is inserted into the concave 33 of the reinforcing material 3. The upper end of the vertical piece 31 is the outer surface of the lower end of the short cylindrical portion 12 of the manhole 11 and the inclined wall 1
The reinforcing member 3 is inserted and fixed in a gap between the partition wall 2 and the main body 1 by being inserted into a concave portion formed by the inner surface of the upper end 3.

In the septic tank of the present invention shown in FIGS.
As described above, since the reinforcing member 3 is inserted and fixed in the gap between the partition wall 2 and the main body 1, even when an earth pressure or the like is applied from above the main body 1 in use, the load is applied via the reinforcing member 3 to the main body 1. 1
And the partition walls 2 disperse, so that the partition walls 2 do not move in the main body 1 or the upper part of the main body 1 or the partition walls 2 are deformed.

FIG. 4 is a sectional view showing another example of the septic tank according to the present invention. In the septic tank of the present invention shown in FIG.
This is an example of a case where no manhole is provided above the base member. The reinforcing member 3 has an E-shape, and the bottom plate 34 of the E-shape reinforcing member 3 is substantially the same as the concave weir 23 of the partition 2. The top plate 35 of the reinforcing member 3 is bonded and fixed to the inner surface of the main body 1 while being bonded to the central portion.

Although the embodiment of the present invention has been described with reference to the drawings, the specific configuration of the present invention is not limited to the illustrated embodiment, and the design of the present invention does not depart from the gist of the present invention. Modifications and the like are included in the present invention.

For example, the wave direction of the corrugated plate 22 of the partition 2 may be vertical or horizontal. Further, as the reinforcing material, a material which is further reinforced by projecting a rib may be used.

[0016]

In the septic tank of the present invention, even if earth pressure or the like is applied from above, the load is dispersed by the main body and the partition via the reinforcing material, so that the partition moves within the main body or the upper part of the main body. Or, there is no fear that the partition wall is deformed.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a main part of an example of a septic tank according to the present invention.

FIG. 2 is a partially cutaway perspective view showing an enlarged part A of FIG. 1;

FIG. 3 is a sectional view of a main part of the septic tank of the present invention shown in FIGS.

FIG. 4 is a cross-sectional view of a main part of another example of the septic tank of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 11 Manhole 12 Short cylindrical part 13 Sloping wall 2 Partition wall 21 Frame 22 Corrugated board 23 Concave weir part 3 Reinforcement material 31 Vertical piece 32 Horizontal piece 33 Depression 34 Bottom plate 35 Top plate

Claims (1)

[Claims] 1. A septic tank in which a partition is provided in a main body, wherein a reinforcing material is inserted and fixed in a gap between an upper portion of the partition and an inner wall surface of the main body.