JPH05172078A - Motor-driven pump - Google Patents
Motor-driven pumpInfo
- Publication number
- JPH05172078A JPH05172078A JP2241691A JP2241691A JPH05172078A JP H05172078 A JPH05172078 A JP H05172078A JP 2241691 A JP2241691 A JP 2241691A JP 2241691 A JP2241691 A JP 2241691A JP H05172078 A JPH05172078 A JP H05172078A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- electric pump
- motor
- water
- casing
- 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.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、電動ポンプに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric pump.
【0002】[0002]
【従来の技術】従来の電動ポンプについて、非自吸式う
ず巻きポンプを例として、図3および図4により説明す
る。図3は従来の電動ポンプの平面図、図4は図3の電
動ポンプの側面断面図である。2. Description of the Related Art A conventional electric pump will be described with reference to FIGS. 3 and 4, taking a non-self-priming spiral pump as an example. 3 is a plan view of a conventional electric pump, and FIG. 4 is a side sectional view of the electric pump of FIG.
【0003】図3において、従来の電動ポンプは、立形
電動機1と、その上端面に複数本のビス2で固定された
うず巻きポンプ3とから構成されている。In FIG. 3, a conventional electric pump comprises a vertical electric motor 1 and a spiral pump 3 fixed to the upper end surface thereof by a plurality of screws 2.
【0004】図4において、上記のうず巻きポンプ3
は、外周面に接線方向に形成された吐出口4aを有する
ケーシング4と、このケーシング4の上方開口部を覆
い、かつ中央に吸入口5aを有するカバー5と、ケーシ
ング4の中に収納された、上記の立形電動機1の回転軸
6に固定された羽根車7から構成されている。また、上
記の回転軸6からの水漏れを防止するため、ケーシング
4の内周にメカニカルシール8が、またケーシング4と
カバー5との間を密封するため、パッキング9が装着さ
れている。さらに、回転軸6から漏れる水が、立形電動
機1に入らないようにケーシング4の下方近傍に水切り
板10が装着されている。In FIG. 4, the spiral pump 3 described above is used.
Is housed in the casing 4; a casing 4 having a discharge port 4a formed tangentially on the outer peripheral surface; a cover 5 covering an upper opening of the casing 4; and a cover 5 having a suction port 5a in the center. It is composed of an impeller 7 fixed to the rotary shaft 6 of the vertical electric motor 1. Further, in order to prevent water leakage from the rotary shaft 6 described above, a mechanical seal 8 is attached to the inner circumference of the casing 4, and a packing 9 is attached to seal between the casing 4 and the cover 5. Further, a draining plate 10 is mounted near the lower part of the casing 4 so that water leaking from the rotary shaft 6 does not enter the vertical electric motor 1.
【0005】なお、上記のビス2を取り付けるため、ケ
ーシング4およびカバー5には、取付け用のビス孔4b
および5bが、それぞれ設けられている。Since the screws 2 are attached, the casing 4 and the cover 5 are provided with screw holes 4b for attachment.
And 5b are provided respectively.
【0006】以上のように構成された電動ポンプの動作
について説明する。まず、始動時は、カバー5の吸入口
5aから水と空気が流入し、羽根車7の回転により、水
と空気の混合水が吐出口4aから外部へ吐き出され、ケ
ーシング4内の空気が排出される。次に、吸入口5aか
ら水が流入して本格的な水送出状態に入ると、水は、羽
根車7の回転により、吐出口4aから外部へ吐出する。The operation of the electric pump configured as described above will be described. First, at the time of start-up, water and air flow in from the suction port 5a of the cover 5, the rotation of the impeller 7 causes the mixed water of water and air to be discharged from the discharge port 4a to the outside, and the air in the casing 4 is discharged. To be done. Next, when water flows in through the suction port 5a and enters a full-scale water delivery state, the water is discharged from the discharge port 4a to the outside by the rotation of the impeller 7.
【0007】[0007]
【発明が解決しようとする課題】しかしながら、上記の
ような構成では、近年、電動ポンプへ給水圧が高くな
り、カバー5に高水圧がかかる結果、カバー5における
パッキン9のシール面が変形して隙間が生じ、水漏れが
発生するという問題があった。However, in the above-mentioned structure, the water supply pressure to the electric pump has increased in recent years and a high water pressure is applied to the cover 5, resulting in deformation of the sealing surface of the packing 9 in the cover 5. There was a problem that a gap was created and water leakage occurred.
【0008】本発明の目的は、上記の問題を解決するも
ので、カバーのビス間の変形を防止し、高水圧下におい
てもパッキンから水が漏れない電動ポンプを提供するも
のである。An object of the present invention is to solve the above problems and to provide an electric pump which prevents deformation of the cover between screws and prevents water from leaking from the packing even under high water pressure.
【0009】[0009]
【課題を解決するための手段】上記の課題を解決するた
め、本発明の電動ポンプは、カバーの上面外周近傍に、
ビス座をつなぐ円環状に強化用リブを設けたものであ
る。In order to solve the above-mentioned problems, the electric pump of the present invention has a cover near the outer periphery of the upper surface.
An annular reinforcing rib is provided to connect the screw seats.
【0010】[0010]
【作用】上記の構成により、カバーの剛性が向上するの
で、高水圧が掛ってもカバーの変形が防止され、水漏れ
しなくなる。With the above structure, the rigidity of the cover is improved, so that the cover is prevented from being deformed even when a high water pressure is applied, and the water does not leak.
【0011】[0011]
【実施例】本発明の実施例について図1および図2によ
り説明する。Embodiments of the present invention will be described with reference to FIGS.
【0012】図1は、本発明による電動ポンプ一実施例
の平面図、図2は図1の実施例の側面断面図である。FIG. 1 is a plan view of an embodiment of an electric pump according to the present invention, and FIG. 2 is a side sectional view of the embodiment of FIG.
【0013】両図において、本実施例が、図3および図
4に示した従来例と異なる点は、カバー5の上面の外周
近傍に、ビス座5dをつなぐように円環状の強化用リブ
5cを設けた点である。その他は従来例と変りがないの
で、対応する構成部品には同一符号を付して、その説明
は省略する。In both figures, the present embodiment differs from the conventional example shown in FIGS. 3 and 4 in that an annular reinforcing rib 5c is formed near the outer periphery of the upper surface of the cover 5 so as to connect a screw seat 5d. This is the point where Others are the same as in the conventional example, and corresponding components are designated by the same reference numerals and the description thereof is omitted.
【0014】以上のように構成された電動ポンプの基本
的な動作は、従来例と同じなのでその説明も省略する。
しかし、高水圧が掛った場合には、強化用リブ5cによ
って、カバー5の剛性が増しているので、変形を起こす
ことなく、従って、パッキング9から水が漏れることは
ない。Since the basic operation of the electric pump constructed as described above is the same as that of the conventional example, its explanation is omitted.
However, when a high water pressure is applied, the rigidity of the cover 5 is increased by the reinforcing ribs 5c, so that the cover 5 is not deformed, and accordingly, the water does not leak from the packing 9.
【0015】[0015]
【発明の効果】以上説明したように、本発明によれば、
ビス座の間に設けた強化用リブによって、剛性が高くな
るので、高水圧が掛っても、カバーが変形せず、従っ
て、パッキンからの水漏れが生じない信頼性の高い電動
ポンプを提供できる。As described above, according to the present invention,
Since the reinforcing ribs provided between the screw seats increase the rigidity, the cover does not deform even when a high water pressure is applied, so that it is possible to provide a highly reliable electric pump in which water does not leak from the packing. .
【図1】本発明による電動ポンプの一実施例の平面図で
ある。FIG. 1 is a plan view of an embodiment of an electric pump according to the present invention.
【図2】図1の電動ポンプのA−O−B断面を示す側面
断面図である。FIG. 2 is a side sectional view showing an AOB section of the electric pump of FIG.
【図3】従来の電動ポンプの平面図である。FIG. 3 is a plan view of a conventional electric pump.
【図4】図3のC−O−D断面を示す側面断面図であ
る。FIG. 4 is a side sectional view showing a C-O-D section of FIG. 3.
1…立形電動機、 2…ビス、 3…うず巻きポンプ、
4…ケーシング、4a…吐出口、 4b,5b…ビス
孔、 5…カバー、 5c…強化用リブ、 5d…ビス
座、 6…回転軸、 7…羽根車、 8…メカニカルシ
ール、 9…パッキン、 10…水切り板。1 ... Vertical electric motor, 2 ... Screw, 3 ... Whirlpool pump,
4 ... Casing, 4a ... Discharge port, 4b, 5b ... Screw hole, 5 ... Cover, 5c ... Reinforcing rib, 5d ... Screw seat, 6 ... Rotating shaft, 7 ... Impeller, 8 ... Mechanical seal, 9 ... Packing, 10 ... Drainer.
Claims (1)
てパッキンを介して取り付けたカバーの中に羽根車を収
容したポンプを、複数本のビスで連結した電動ポンプに
おいて、前記カバーの上面外周近傍に、ビス座をつなぐ
円環状の強化用リブを設けたことを特徴とする電動ポン
プ。1. An electric pump in which a pump, in which an impeller is housed in a cover attached to a casing via packing, is connected to a casing of an output end surface of an electric motor by a plurality of screws, and the vicinity of an outer periphery of an upper surface of the cover. The electric pump is characterized in that an annular reinforcing rib for connecting the screw seat is provided on the.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2241691A JPH05172078A (en) | 1991-02-16 | 1991-02-16 | Motor-driven pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2241691A JPH05172078A (en) | 1991-02-16 | 1991-02-16 | Motor-driven pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH05172078A true JPH05172078A (en) | 1993-07-09 |
Family
ID=12082067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2241691A Pending JPH05172078A (en) | 1991-02-16 | 1991-02-16 | Motor-driven pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH05172078A (en) |
-
1991
- 1991-02-16 JP JP2241691A patent/JPH05172078A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH05172078A (en) | Motor-driven pump | |
US4923366A (en) | Reversible turbine pump | |
JP4685292B2 (en) | Cand motor pump and manufacturing method thereof | |
US5464329A (en) | Water ring type pump with sidewall water reflux passage | |
US20030133811A1 (en) | Mini water pump | |
JPH0544682A (en) | Pump | |
EP0534381A1 (en) | Discharge device for washing machines and the like | |
JPS6343598B2 (en) | ||
JPH04209997A (en) | Electric pump | |
JPH0979171A (en) | Drainage pump | |
JPH07293496A (en) | Submerged pump | |
KR100469683B1 (en) | A chemical process pump | |
JP2855794B2 (en) | pump | |
JP3239179B2 (en) | underwater pump | |
JP4517426B2 (en) | pump | |
JP3693511B2 (en) | Waste water drainage pump | |
JPS58101295A (en) | Pumping apparatus | |
JPH07286595A (en) | Pump casing for submerged pump | |
JPH1018999A (en) | Drain pump | |
JP2616238B2 (en) | Water ring vacuum pump | |
JP2003083297A (en) | Pump | |
JPH0545834Y2 (en) | ||
JP3305586B2 (en) | Dishwasher pump | |
JPS6014954Y2 (en) | centrifugal pump | |
JPS6131686A (en) | Water sealing pump |