JP4006744B2 - Bulkhead frame and septic tank - Google Patents
Bulkhead frame and septic tank Download PDFInfo
- Publication number
- JP4006744B2 JP4006744B2 JP26475197A JP26475197A JP4006744B2 JP 4006744 B2 JP4006744 B2 JP 4006744B2 JP 26475197 A JP26475197 A JP 26475197A JP 26475197 A JP26475197 A JP 26475197A JP 4006744 B2 JP4006744 B2 JP 4006744B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- septic tank
- manhole
- bulky
- height
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Landscapes
- Treatment Of Biological Wastes In General (AREA)
Description
【０００１】
【発明の属する技術分野】
本発明は、浄化槽のマンホール部の高さを調整するための嵩上枠及びその嵩上枠を用いた浄化槽に関する。
【０００２】
【従来の技術】
浄化槽は、汚水を浄化するための装置であり、通常は地中に埋設して使用する場合が多い。図２は、汎用されている浄化槽の全体図（正面図）で、流入口から流入した汚水は、浄化槽内（槽内部の構造は省略）で有機物は分解・処理され、処理水は放流口から放流される。浄化槽の上面には、浄化槽内部の機器及び水質の点検の際に使用するマンホールが複数個設けられている。
【０００３】
従来のマンホール部の構造のいくつかの例を図３〜図５に示す。図３は、ボルト及びナットを用いて、浄化槽の立上り部２にマンホール枠３を固定し、そのマンホール枠３上にマンホール蓋４を載置する構造である。
【０００４】
図４は、図３の構造の変形で立上り部２とマンホール枠３の間にスペーサ５を挾み、高さを調整する構造である。
図５は、浄化槽の立上り部２とマンホール枠３の間に嵩上枠６を設け、高さを調整する構造である。
【０００５】
【発明が解決しようとする課題】
前述した通り、浄化槽は通常、地中に埋設して使用する場合が多い。浄化槽を地中に埋設する際には、マンホール蓋が地面高さになるように穴を掘るが、配管の関係で流入口を下げる等の必要が生じた場合には、より深い穴を掘ることとなる。一方、マンホール蓋の高さ（地表と同じ高さ）は変えることができないので、マンホール部の構造は高さを調整できるものでなければならない。
しかし、図３に示したマンホール部の構造では、マンホール蓋の高さを調整することができない。
【０００６】
図４に示したマンホール部の構造では、スペーサを挾む手間を要し、また高さ調整も容易ではない。
図５に示したマンホール部の構造は、所定高さのものを予め用意しておけば、不必要部分を切断するだけなので高さ調整は容易であるが、切断カスが廃棄物となり無駄となる。
本発明は、スペーサを必要とせず、あるいは切断カス（廃棄物）を発生させずに、容易にマンホール蓋の高さを調整でき、現場における浄化槽の設置時間が短縮するマンホール部の構造を提供することを目的とする。
【０００７】
【課題を解決するための手段】
本発明は、下部を浄化槽立上がり部に固定され、上部をマンホール枠に固定されるジャバラ構造の筒体と、この筒体の外力を加えないときの高さよりも長い棒状支持体とを備え、浄化槽立上り部と筒体との固定、及び、筒体とマンホール枠との固定が、上記棒状支持体によりなされ、この棒状支持体が、ネジ部を有するボルト・ナットであり、上記固定をボルト・ナットのネジ固定により行う嵩上枠を提供する。また、本発明は、この嵩上枠を備えた浄化槽を提供するものである。
【０００８】
【発明の実施の形態】
本発明の一実施形態における、浄化槽立上り部とマンホール部（断面図）を図１に示した。立上り部２に嵩上枠６が接続・固定され、その嵩上枠の上部にマンホール枠３が接続・固定され、そのマンホール枠３にマンホール蓋４が載置されている。嵩上枠６はジャバラ構造を有する筒体であるゆえにマンホール枠３の高さ（すなわち、マンホール蓋４の高さ）が調整できる。
なお、図１の（Ａ）は嵩上枠６に外力を加えないときの状態の図であり、図１の（Ｂ）は嵩上枠６に垂直方向に（固定具による）締め付け力を加えて、嵩上枠６を縮めた状態の図である。
【０００９】
嵩上枠の材質は、垂直方向に伸縮可能な特性を考慮するとプラスチックが好ましく、そのプラスチックとしては、例えば、ポリエチレン、ポリプロピレン、軟質塩化ビニル等があり、好ましくはポリプロピレンである。
垂直方向に伸縮可能な特性は、嵩上枠のジャバラ構造と材料（プラスチック）の柔軟性によって発揮される。嵩上枠（筒体）の厚みは、１〜４ｍｍ、好ましくは２〜３ｍｍで均一とし、ジャバラ構造の隣合う山と谷の長さ（間隔）は約２０〜４０ｍｍとし、山（又は谷）の数は約４〜２０個とする。嵩上枠（筒体）の径の大きさは人の出入り可能な大きさとし、嵩上枠（筒体）の高さは外力を加えない状態で約５０〜３００ｍｍとする。このようなジャバラ構造の嵩上枠は、プラスチックの成形等により製造できる。
【００１０】
マンホール用立上り部と嵩上枠の接続・固定、並びに嵩上枠とマンホール枠との固定は種々の方法を用いることができるが、好ましいものとしては、棒状支持体を介するものである。棒状支持体を使用する場合、その棒状支持体の下部でマンホール用立上り部と嵩上枠とを接続・固定し、棒状支持体の上部で嵩上枠とマンホール枠とを接続・固定する。
【００１１】
棒状支持体としては、前記嵩上枠の外力を加えないときの円筒高さ（約５０〜３００ｍｍ）よりも少し長めの棒状体が好ましく、このようなものとして例えば、ネジ部を有するボルト・ナット等がある。その材質は特に限定されるものではないが、強度や安定性を確保する点からステンレスや防錆処理された鉄等が好ましく用いられる。棒状支持体としてネジ部を有するボルト・ナットを用いる場合、マンホール枠と嵩上枠の接続・固定は、前記図１に示したように、ボルトの頭による支持とボルト・ナットのネジ固定により行ない、また、嵩上枠とマンホール枠との固定はボルト・ナットのネジ固定により行なうことができる。ボルト
・ナットのネジ込み深さを調整することにより嵩上げ高さを調整できる。
本発明の嵩上枠はジャバラ構造を有するので垂直方向の力には弱い。そのため、棒状支持体は複数個とし、好ましくは３〜６本とする。
【００１２】
本発明の浄化槽は、マンホール用立上り部に、前記した本発明の嵩上枠を接続・固定し、これにマンホール枠を接続・固定し、これにマンホール蓋を載置した構造で、全体外観は先に述べた図２と同様である。浄化槽本体はプラスチック製であり、その内部は上流側から嫌気濾床槽、好気濾床槽、沈殿槽（又は処理水槽）、消毒槽等に区切られている。
【００１３】
【発明の効果】
本発明の嵩上枠を用いれば、スペーサを必要とせず、あるいは切断カス（廃棄物）を発生させずに、浄化槽のマンホール蓋の高さを容易に調整できる。そのため、現場における浄化槽の設置時間を短縮できる。また、浄化槽を設置する土地が多少傾斜していても、固定具（ネジ固定等）の調整によりその土地の傾斜に適応させることができる。
【図面の簡単な説明】
【図１】本発明の浄化槽における、浄化槽立上り部とマンホール部の断面図である。（Ａ）は嵩上枠に外力を加えないときの状態であり、（Ｂ）は嵩上枠に垂直方向に（固定具による）締め付け力を加えて、嵩上枠を縮めた状態の図である。
【図２】汎用されている浄化槽の全体図（正面図）である。
【図３】従来の浄化槽マンホール部の構造を示す断面図である。
【図４】従来の他の例の浄化槽マンホール部の構造を示す断面図である。
【図５】従来の別の例の浄化槽マンホール部の構造を示す断面図である。
【符号の説明】
１…浄化槽 ２…立上り部 ３…マンホール枠
４…マンホール蓋 ５…スペーサ ６…嵩上枠
７…ボルト ８…ナット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bulky frame for adjusting the height of a manhole portion of a septic tank and a septic tank using the bulky frame.
[0002]
[Prior art]
A septic tank is a device for purifying sewage, and is usually used by being buried in the ground. Fig. 2 is a general view of a septic tank that is widely used (front view). The sewage that flows in from the inlet is decomposed and treated in the septic tank (the structure inside the tank is omitted), and the treated water is discharged from the outlet. It is released. On the upper surface of the septic tank, there are provided a plurality of manholes used when checking the equipment inside the septic tank and water quality.
[0003]
Some examples of the structure of the conventional manhole part are shown in FIGS. FIG. 3 shows a structure in which a manhole frame 3 is fixed to the rising
[0004]
FIG. 4 shows a structure in which the spacer 5 is sandwiched between the rising
FIG. 5 shows a structure in which a
[0005]
[Problems to be solved by the invention]
As described above, the septic tank is usually used by being buried in the ground. When burying the septic tank underground, dig a hole so that the manhole cover is at the ground level, but if it is necessary to lower the inlet due to piping, dig a deeper hole. It becomes. On the other hand, since the height of the manhole cover (the same height as the ground surface) cannot be changed, the structure of the manhole part must be capable of adjusting the height.
However, the manhole cover structure shown in FIG. 3 cannot adjust the height of the manhole cover.
[0006]
In the structure of the manhole portion shown in FIG. 4, it takes time and effort to hold the spacer, and the height adjustment is not easy.
The structure of the manhole portion shown in FIG. 5 is easy to adjust the height if it is prepared in advance with a predetermined height so that unnecessary portions are cut, but the cutting waste becomes waste and is wasted. .
The present invention provides a manhole structure that can easily adjust the height of the manhole cover without requiring a spacer or generating cutting waste (waste), and shortening the installation time of the septic tank at the site. For the purpose.
[0007]
[Means for Solving the Problems]
The present invention comprises a bellows-structured cylindrical body whose lower part is fixed to the rising part of the septic tank and whose upper part is fixed to the manhole frame, and a rod-like support longer than the height when no external force is applied to the cylindrical body, The rising part and the cylinder and the cylinder and the manhole frame are fixed by the rod-like support body. The rod-like support body is a bolt and nut having a threaded portion, and the bolt and nut are fixed. A bulky frame is provided by fixing the screws. Moreover, this invention provides the septic tank provided with this bulky frame.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The septic tank rising part and the manhole part (sectional view) in one embodiment of the present invention are shown in FIG. A raised
1A is a view of a state when no external force is applied to the
[0009]
The material of the bulkhead frame is preferably a plastic in consideration of the property that it can expand and contract in the vertical direction. Examples of the plastic include polyethylene, polypropylene, and soft vinyl chloride, and preferably polypropylene.
The property of expanding and contracting in the vertical direction is exhibited by the bellows structure of the bulky frame and the flexibility of the material (plastic). The thickness of the bulky frame (cylinder) is 1 to 4 mm, preferably 2 to 3 mm, and the length (interval) between adjacent peaks and valleys of the bellows structure is about 20 to 40 mm. The number of is about 4-20. The size of the diameter of the bulky frame (cylinder) is a size that allows people to enter and exit, and the height of the bulky frame (cylinder) is about 50 to 300 mm without applying external force. Such a bulky frame having a bellows structure can be manufactured by plastic molding or the like.
[0010]
Various methods can be used for connecting and fixing the rising portion for the manhole and the bulky frame, and for fixing the bulky frame and the manhole frame, but it is preferable to use a rod-like support. When a rod-shaped support is used, the manhole rising part and the bulky frame are connected and fixed at the lower part of the bar-shaped support, and the bulky frame and the manhole frame are connected and fixed at the upper part of the bar-shaped support.
[0011]
The rod-like support is preferably a rod-like body that is slightly longer than the cylindrical height (about 50 to 300 mm) when the external force of the bulky frame is not applied. Etc. The material is not particularly limited, but stainless steel, rust-proof iron or the like is preferably used from the viewpoint of ensuring strength and stability. When a bolt / nut having a threaded portion is used as the rod-like support, the manhole frame and the bulky frame are connected and fixed by supporting the bolt head and fixing the bolt / nut with screws as shown in FIG. Moreover, the bulky frame and the manhole frame can be fixed by fixing bolts and nuts. The raised height can be adjusted by adjusting the screw-in depth of the bolt and nut.
Since the bulky frame of the present invention has a bellows structure, it is weak against vertical force. Therefore, there are a plurality of rod-shaped supports, preferably 3-6.
[0012]
The septic tank of the present invention has a structure in which the above-described bulky frame of the present invention is connected and fixed to the rising part for the manhole, and the manhole frame is connected and fixed to this, and the manhole cover is placed on this. This is the same as FIG. 2 described above. The main body of the septic tank is made of plastic, and the inside thereof is divided into an anaerobic filter bed tank, an aerobic filter bed tank, a settling tank (or treated water tank), a disinfection tank, and the like from the upstream side.
[0013]
【The invention's effect】
If the bulky frame of the present invention is used, the height of the manhole cover of the septic tank can be easily adjusted without the need for spacers or the generation of cutting waste (waste). Therefore, the installation time of the septic tank at the site can be shortened. Moreover, even if the land where the septic tank is installed is slightly inclined, it can be adapted to the inclination of the land by adjusting a fixture (screw fixing, etc.).
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a septic tank rising part and a manhole part in a septic tank of the present invention. (A) is a state when no external force is applied to the bulky frame, and (B) is a diagram in a state in which the bulky frame is contracted by applying a tightening force (by a fixture) in the vertical direction to the bulky frame. is there.
FIG. 2 is an overall view (front view) of a septic tank that is widely used.
FIG. 3 is a cross-sectional view showing the structure of a conventional septic tank manhole.
FIG. 4 is a cross-sectional view showing the structure of a septic tank manhole part according to another conventional example.
FIG. 5 is a cross-sectional view showing a structure of a septic tank manhole part according to another conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ...
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26475197A JP4006744B2 (en) | 1997-09-30 | 1997-09-30 | Bulkhead frame and septic tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26475197A JP4006744B2 (en) | 1997-09-30 | 1997-09-30 | Bulkhead frame and septic tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11105977A JPH11105977A (en) | 1999-04-20 |
| JP4006744B2 true JP4006744B2 (en) | 2007-11-14 |
Family
ID=17407688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26475197A Expired - Fee Related JP4006744B2 (en) | 1997-09-30 | 1997-09-30 | Bulkhead frame and septic tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4006744B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20055700L (en) * | 2005-12-23 | 2007-06-24 | Uponor Innovation Ab | Tank |
| JP5599273B2 (en) * | 2010-09-18 | 2014-10-01 | フジクリーン工業株式会社 | Wastewater treatment equipment |
| JP5769192B2 (en) * | 2011-06-24 | 2015-08-26 | 田中 卓也 | Raising frame for septic tank |
-
1997
- 1997-09-30 JP JP26475197A patent/JP4006744B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11105977A (en) | 1999-04-20 |
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