JP2573808Y2 - Septic tank - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a septic tank in which a flange formed around a lid member is fitted to a peripheral portion of a cylindrical main body to partition an internal space of the main body in a longitudinal direction thereof. .

[0002]

2. Description of the Related Art Conventionally, in this type of septic tank, the lid
The joint between the member and the septic tank main body has a so-called mat-joined structure in which a glass mat impregnated with a thermosetting resin such as unsaturated polyester is overlaid and bonded over the brim section and the septic tank main body.

[0003]

However, in order to perform the mat joining, it is necessary to previously sand the joining surface facing the mat to make it rough, which is not only time-consuming but also sanding. In the case of, for example, FRP
There is a problem that dusts such as plastics and glass fibers, which are materials of the mat, are generated, which may impair the health of workers, and that the glass fibers of the mat itself are not desirable in the working environment. In addition, since the glass mat before curing is soft, it must be arranged over the entire circumference while pressing the glass mat in order over each part, which takes time and effort, and also takes time and effort to cure it. However, there is a disadvantage that workability is poor because of the necessity. As one of the countermeasures, it is conceivable to apply an adhesive to one of the fitting surfaces of the septic tank main body and the lid member, and then fit and bond the two together. There is a possibility that the applied adhesive may be peeled off from the fitting surface at the time of fitting, so that there is no guarantee that the adhesive can be securely bonded over the entire circumference.

Accordingly, an object of the present invention is to provide a septic tank having a structure capable of solving the above-mentioned problems in the working environment and of easily and securely joining the lid member to the main body in a short time. .

[0005]

Means for Solving the Problems] characterizing feature of the septic tank according to the present invention for achieving this object, the flange portion of the lid member, between the contact portion of Setto a body peripheral portion, a body peripheral portion And a step for forming a gap is provided, and the gap is filled with an adhesive to join the lid member to the main body.

[0006]

The flange portion of the action The lid member, and a contact portion of the outer peripheral fitting portion and Setto of the body, between the outer peripheral fitting portion of the body, outer
When a step is formed to form a gap through which the adhesive can be injected from the main body, the step can be fitted to the main body in a stable posture because of the abutment part. Can be fitted to each other while securing the gap between the main body and the lid member , so that both can be securely joined while preventing the adhesive from being scraped off. Further, the collar portion is the book
The step portion is externally fitted to the body, and the adhesive is
A gap that opens to the outside in a position that can be injected
From above, the lid member was fitted to the outer peripheral fitting portion of the main body.
After that, adhesive can be injected into the gap,
Septic tanks, such as minimizing work in poor work environments
Can be efficiently assembled. Also, compared to the conventional septic tank structure which had to rely on mat joining, the septic tank of the present application has no problem in the working environment due to the glass fiber of the glass mat, and the joining surface is roughened by sanding. Therefore, problems in the working environment caused by dust such as plastic and glass fiber, which are materials of the lid member and the septic tank main body, are also eliminated. Also, it takes less time and effort to attach the lid member than is required for sanding and attaching and curing the glass mat.

[0007]

[Effect of the invention] In other words, the lid part accompanying the structure of the conventional septic tank
Eliminates problems in the work environment when installing materials ,
It was possible to provide a septic tank that can easily and reliably join the lid member to the main body in a short time and partition the internal space.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a septic tank according to the present invention will be described below with reference to the drawings. First, an outline of the structure of the septic tank will be described. FIG. 1A shows a vertical sectional side view of the septic tank 1.
(B) As shown in a schematic cross-sectional front view, the septic tank 1 is provided with a partition plate A serving as a wall member 3 near the center in the longitudinal direction of a cylindrical main body 2 having an oblong cross section. The main body 2 is partitioned in the longitudinal direction and divided into an anaerobic filter bed tank N and a contact aeration tank E, and both ends of the main body 2 are externally fitted with lid members B serving as bottomed cylindrical wall members 3. Is separated from the space. The septic tank 1 also needs interior members such as a partition plate, a filter bed, and internal piping other than the partition plate A and the lid member B, but a description thereof will be omitted.

Hereinafter, the structure of the septic tank according to the present invention will be described with respect to the lid member B. FIG. 2 is an enlarged cross-sectional view of the junction between the lid member B and the septic tank main body 2 in FIG. The flange portion F of the lid member B, the contact portion F ₁ to Setto and said body second end outer peripheral portion, the entire circumference a step consisting of the step portion F ₂ Metropolitan to form a gap between the main body 2 Over,
The gap B is filled with an adhesive C, and the lid B is joined to the main body 2 while also serving as a seal. As a procedure for obtaining this joining state, for example, after applying the adhesive C over the entire outer periphery fitting portion on the main body side, the lid member B may be externally fitted to the main body 2 or may be externally fitted first. The adhesive C may be injected into the gap later. still,
After the adhesive C injection, in some cases, it may be a structure in which a combination of mechanical bonding method of tightening and the stepped portion F ₂ and the main body 2 by such a blind rivet or bolt and nut for reinforcement.

Next, the mounting structure of the partition plate A will be described. As shown in FIG. 3 which shows a cross section of the joint portion with the main body 2, a gap is formed between the main body 2 and the contact portion F 1 that contacts the inner peripheral portion of the main body 2 at the flange portion F of the partition plate A. The gap F is filled with an adhesive C and is joined to the septic tank main body 2. In FIG. 1, the flange C is connected to the contact aeration tank E.
Although it is joined to the main body 2 in a state facing the side, a mounting structure in which the flange portion C faces the anaerobic filter bed tank N side may be adopted.

[0011] flange portion F of [Other Embodiment] partition member A, as shown the cross-section in FIG. 4, for example, while those having a contact portion F ₁ and the stepped portion F _2, a different shape You can also.

The adhesive C is an epoxy resin,
A urethane-based or acrylic-based adhesive can be used.

With the structure described above, a septic tank which is easy to assemble, has no liquid leakage and has sufficient strength can be obtained.

In the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view and a cross-sectional front view of a septic tank in an embodiment.

FIG. 2 is a longitudinal sectional side view of a joint between a lid member and a septic tank main body.

FIG. 3 is a longitudinal side view of a junction between a partition plate and a septic tank main body.

FIG. 4 is a vertical sectional side view of a junction with a septic tank main body in another embodiment.

[Description of Signs] 2 Septic tank main body 3 Wall member A Partition plate B Cover member C Adhesive material F Collar portion F1 Contact portion F2 Step portion

Continuing from the front page (72) Inventor: Dai Harada 2 at Takamatsu, Kosai-cho, Koga-gun, Shiga Prefecture Inside the Kubota Shiga Plant (72) Inventor: Kazuyuki Honda 2 shares, Takamatsu, Kosai-cho, Koga-gun, Shiga Prefecture (56) References JP-A-54-120682 (JP, A) JP-A-2-117096 (JP, U) JP-A-57-5112 (JP, Y2) (58) Fields investigated ( Int.Cl. ⁶ , DB name) C02F 3/00 B65D 88/00-88/78 B65D 90/00-90/66

Claims (1)

(57) [Scope of request for utility model registration] 1. A flange (F) formed around a lid member (B) is fitted to an outer peripheral fitting portion of a cylindrical main body (2) to reduce the internal space of the main body (2). A septic tank partitioning in the longitudinal direction, wherein a gap is formed in the collar (F) between a contact portion (F1) contacting the peripheral portion of the main body (2) and the peripheral portion of the body (2). A septic tank provided with a stepped portion (F2), and filled with the gap adhesive (C) to join the lid member (B) to the main body (2).