JPH0320558Y2 - - Google Patents
Info
- Publication number
- JPH0320558Y2 JPH0320558Y2 JP16145483U JP16145483U JPH0320558Y2 JP H0320558 Y2 JPH0320558 Y2 JP H0320558Y2 JP 16145483 U JP16145483 U JP 16145483U JP 16145483 U JP16145483 U JP 16145483U JP H0320558 Y2 JPH0320558 Y2 JP H0320558Y2
- Authority
- JP
- Japan
- Prior art keywords
- suction cover
- lower edge
- impeller
- pump casing
- pump
- 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
Links
- 239000007787 solid Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000013505 freshwater Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【考案の詳細な説明】
［考案の技術分野］
本考案は、固形物を含んだ汚水中でも使用し得
られる水中ポンプに関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a submersible pump that can be used even in wastewater containing solids.
［従来技術とその問題点］
一般に水中ポンプでは、ポンプケーシング内に
おいて羽根車が、その羽根板下縁を吸込カバー盤
面上に接近させた状態で収容されてあり、汚水中
で使用した場合にはポンプケーシング内に固形物
が詰まり易いという欠点を有している。[Prior art and its problems] Generally, in a submersible pump, the impeller is housed in the pump casing with the lower edge of the blade plate close to the surface of the suction cover board. It has the disadvantage that solid matter tends to get stuck inside the pump casing.
また、羽根板下縁を吸込カバー盤面上から大き
く離隔させた構造であれば、固形物が詰まること
は防止し得るが、これはポンプ性能を犠性にする
ことになるので、清水中で使用するポンプには不
適当である。 In addition, if the lower edge of the vane plate is separated from the surface of the suction cover panel by a large distance, it is possible to prevent solid matter from clogging, but this will sacrifice pump performance, so it should not be used in fresh water. It is unsuitable for pumps that
［考案の目的］
本考案はこのような事情に鑑み、汚水中で使用
する場合には吸込カバー盤面を羽根車下縁から大
きく離隔させて固形物の通過を容易にし、また、
清水中で使用する場合には吸込カバー盤面と羽根
車下縁との間の間〓を狭小にしてポンプ性能が低
下しないように、羽根車下縁と吸込カバー盤面と
の対向状態が用途に応じて切換えられる水中ポン
プを提供するのが目的である。[Purpose of the invention] In view of these circumstances, the present invention is designed to make it easier for solids to pass through by separating the suction cover panel surface from the lower edge of the impeller by a large distance when used in sewage.
When using in fresh water, the opposing state of the impeller lower edge and the suction cover disk surface should be adjusted according to the application so that the gap between the suction cover disk surface and the lower edge of the impeller is narrowed and the pump performance does not deteriorate. The purpose is to provide a submersible pump that can be switched over.
［考案の構成］
本考案に係る水中ポンプにおいては、中央に吸
込孔を設けた吸込カバーの外縁部分をポンプケー
シングへの取付部となし、該取付部の一面を他面
よりも高く凸出する凸環状面に形成し、吸込カバ
ーの一面を羽根車下縁に対向させてポンプケーシ
ングに定着することにより羽根車下縁との間に広
い間〓を形成せしめ、または吸込カバーの他面を
羽根車下縁に対向させてポンプケーシングに定着
することにより羽根車下縁との間に狭小な間〓を
形成せしめるのである。[Structure of the invention] In the submersible pump according to the invention, the outer edge portion of the suction cover with the suction hole in the center is used as the attachment part to the pump casing, and one side of the attachment part protrudes higher than the other side. By forming the suction cover into a convex annular surface and fixing it to the pump casing with one side of the suction cover facing the lower edge of the impeller, a wide gap can be formed between the suction cover and the lower edge of the impeller, or the other side of the suction cover can be attached to the impeller. By being fixed to the pump casing facing the lower edge of the vehicle, a narrow gap is formed between the lower edge and the impeller.
［実施例］
実施例の図面について説明すると、１はポンプ
ケーシング２内においてモーター軸３に嵌着せら
れた羽根車、４は羽根車１の下縁１ｅと対向する
吸込カバーであつて、中央部に吸込孔５を穿設し
外縁部分をポンプケーシング２への取付部６とな
し、かつ、該取付部６の一面６ａが他面６ｂより
も高く凸出した凸環状面に形成せられている。従
つて、第１図Ａのように吸込カバー４の一面４ａ
を羽根車下縁１ｅに対向させた場合には羽根車１
の下方に固形物通過用の広い間〓G1が形成せら
れ、ポンプケーシング２内に固形物を詰まらせる
ことなく汚水中での使用に適した状態となる。ま
た、第１図Ｂのように吸込カバー４の他面４ｂを
羽根車下縁１ｅに対向させた場合には羽根車１の
下方に狭小な間〓G2のみが形成せられ、ポンプ
性能が低下することなく清水中での使用に適した
状態となる。これら何れかの状態により、取付ボ
ルト７……７をボルト孔８……８からネジ孔９…
…９へ螺締して、吸込カバー４をポンプケーシン
グ２の下縁部へ着脱自在に定着させるのである。[Example] To explain the drawings of the example, 1 is an impeller fitted on the motor shaft 3 in the pump casing 2, 4 is a suction cover facing the lower edge 1e of the impeller 1, and the central part is A suction hole 5 is bored in the pump casing 2, and the outer edge portion is used as a mounting portion 6 to the pump casing 2, and one surface 6a of the mounting portion 6 is formed into a convex annular surface protruding higher than the other surface 6b. . Therefore, as shown in FIG. 1A, one surface 4a of the suction cover 4
When facing the impeller lower edge 1e, the impeller 1
A wide gap G1 for solid matter to pass through is formed below the pump casing 2, making it suitable for use in waste water without clogging the inside of the pump casing 2 with solid matter. In addition, when the other surface 4b of the suction cover 4 is made to face the lower edge 1e of the impeller 1 as shown in FIG. It becomes suitable for use in fresh water without deterioration. Depending on any of these conditions, the mounting bolts 7...7 can be inserted from the bolt holes 8...8 to the screw holes 9...
... 9 to fix the suction cover 4 to the lower edge of the pump casing 2 in a detachable manner.
［考案の効果］
本考案によれば、吸込カバー４の取付面を変更
するだけの簡単な作業により、汚水中で使用して
も固形物を詰まらせない状態となし、また、清水
中での使用においてポンプ性能の低下しない状態
となし、１台のポンプを用途に応じ二様に使い分
けることができるので至極便利である。[Effects of the invention] According to the invention, by simply changing the mounting surface of the suction cover 4, it can be used in dirty water without getting clogged with solids, and can be used in clean water. It is extremely convenient because the pump performance does not deteriorate during use and one pump can be used in two different ways depending on the application.
第１図は本考案ポンプの要部縦断側面図であつ
て、Ａは汚水中での使用に適した態様に吸込カバ
ーを装着させた事例を示し、Ｂは清水中での使用
に適した態様に吸込カバーを装着させた事例を示
す。第２図は本考案ポンプにおける吸込カバーを
４ａ面の方向から見た平面図、第３図は第２図の
Ａ−Ａ線における縦断側面図、第４図は本考案ポ
ンプにおける吸込カバーを４ｂ面の方向から見た
平面図、第５図は第４図のＢ−Ｂ線における縦断
側面図である。
１……羽根車、１ｅ……羽根車下縁、２……ポ
ンプケーシング、４……吸込カバー、４ａ……一
面、４ｂ……他面、５……吸込孔、６……取付
部、６ａ……一面、６ｂ……他面、G1……広い
間〓、G2……狭小な間〓。
Fig. 1 is a vertical sectional side view of the main part of the pump of the present invention, where A shows an example in which a suction cover is attached in a manner suitable for use in dirty water, and B shows an example in which a suction cover is attached in a manner suitable for use in clean water. An example is shown in which a suction cover is attached to the Fig. 2 is a plan view of the suction cover in the pump of the present invention viewed from the 4a side, Fig. 3 is a longitudinal side view taken along line A-A in Fig. 2, and Fig. 4 is a plan view of the suction cover in the pump of the present invention as viewed from the 4b side. FIG. 5 is a plan view seen from the surface direction, and FIG. 5 is a longitudinal sectional side view taken along line BB in FIG. 4. 1... Impeller, 1e... Lower edge of impeller, 2... Pump casing, 4... Suction cover, 4a... One side, 4b... Other side, 5... Suction hole, 6... Mounting part, 6a ...One side, 6b...The other side, G 1 ...Wide space, G 2 ...Narrow space.
Claims (1)
分をポンプケーシング２への取付部６となし、該
取付部６の一面６ａを他面６ｂよりも高く凸出す
る凸環状面に形成し、吸込カバー４の一面４ａを
羽根車下縁１ｅに対向させてポンプケーシング２
に定着することにより羽根車下縁１ｅとの間に広
い間〓G1を形成せしめ、または吸込カバー４の
他面４ｂを羽根車下縁１ｅに対向させてポンプケ
ーシング２に定着することにより羽根車下縁１ｅ
との間に狭小な間〓G2を形成せしめるよう構成
してなる水中ポンプ。 An outer edge portion of the suction cover 4 having a suction hole 5 in the center is used as a mounting portion 6 to the pump casing 2, and one surface 6a of the mounting portion 6 is formed into a convex annular surface protruding higher than the other surface 6b, The pump casing 2 is installed with one side 4a of the suction cover 4 facing the lower edge 1e of the impeller.
By fixing the suction cover 4 to the lower edge 1e of the impeller to form a wide gap G1, or by fixing the suction cover 4 to the pump casing 2 with the other surface 4b facing the lower edge 1e of the impeller. Car lower edge 1e
A submersible pump configured to form a narrow gap 〓G 2 between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16145483U JPS6069390U (en) | 1983-10-18 | 1983-10-18 | underwater pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16145483U JPS6069390U (en) | 1983-10-18 | 1983-10-18 | underwater pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6069390U JPS6069390U (en) | 1985-05-16 |
| JPH0320558Y2 true JPH0320558Y2 (en) | 1991-05-02 |
Family
ID=30354819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16145483U Granted JPS6069390U (en) | 1983-10-18 | 1983-10-18 | underwater pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6069390U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0730959Y2 (en) * | 1989-05-09 | 1995-07-19 | 松下電器産業株式会社 | Centrifugal pump |
| JP2008008196A (en) * | 2006-06-29 | 2008-01-17 | Nidec Sankyo Corp | Centrifugal pump, method for adjusting characteristics of same and method for manufacturing same |
-
1983
- 1983-10-18 JP JP16145483U patent/JPS6069390U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6069390U (en) | 1985-05-16 |
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