JPH1043121A - Pump for dishwasher - Google Patents
Pump for dishwasherInfo
- Publication number
- JPH1043121A JPH1043121A JP20388296A JP20388296A JPH1043121A JP H1043121 A JPH1043121 A JP H1043121A JP 20388296 A JP20388296 A JP 20388296A JP 20388296 A JP20388296 A JP 20388296A JP H1043121 A JPH1043121 A JP H1043121A
- Authority
- JP
- Japan
- Prior art keywords
- discharge port
- valve
- sewage
- washing water
- water discharge
- 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.)
- Granted
Links
Landscapes
- Washing And Drying Of Tableware (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、食器洗い機用ポ
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 a dishwasher pump.
【0002】[0002]
【従来の技術】食器洗い機のポンプは、食器を洗浄する
際に噴射ノズルから洗浄水を噴射する機能と、洗浄後の
汚水を機外へ排出する機能とを有する。従来は、洗浄水
の噴射用ポンプと、汚水の排出用ポンプを個別に設ける
ことが一般的であったが、装置の小形化を図るために、
1台のポンプを用い、その正転と逆転の切換えに伴い電
磁ソレノイドで駆動される弁により噴射通路と排水通路
とを切換えるようにしたものも知られている(実開平1
−145364号公報、特公平8−15477号公
報)。2. Description of the Related Art A dishwasher pump has a function of spraying washing water from a spray nozzle when washing dishes, and a function of discharging sewage after washing to the outside of the machine. In the past, it was common to separately provide a pump for injecting washing water and a pump for discharging sewage, but in order to reduce the size of the device,
It is also known that a single pump is used to switch between an injection passage and a drain passage by a valve driven by an electromagnetic solenoid in accordance with switching between normal rotation and reverse rotation.
145364, JP-B 8-15477).
【0003】更に、上記の切換弁を駆動するための電磁
ソレノイドを省略し、ポンプの正転・逆転時の水流と水
圧の変化とにより可動弁を作動させるものも知られてい
る(実開平1−108264号公報、実開平1−121
553号公報)。[0003] Further, there is also known an apparatus in which an electromagnetic solenoid for driving the above-mentioned switching valve is omitted, and a movable valve is operated by a change in water flow and water pressure when the pump rotates forward and backward (actually disclosed in Japanese Utility Model Application Laid-Open No. HEI 1-1991). -108264, Japanese Utility Model Laid-Open 1-121
553).
【0004】[0004]
【発明が解決しようとする課題】上記のように、ポンプ
の正転・逆転時の水流と水圧の変化によって可動弁を作
動させる形式のものは、可動弁を駆動させる電磁ソレノ
イド及びその制御装置が不要であるので、低コストであ
り、かつ小型化される利点がある。As described above, in the type in which the movable valve is actuated by a change in the water flow and the water pressure when the pump rotates forward and backward, the electromagnetic solenoid for driving the movable valve and its control device are used. Since it is unnecessary, there are advantages of low cost and downsizing.
【0005】しかし、上掲の公報に示されたものはいず
れも汚水吐出口にのみ可動弁を設けたものであるから、
ポンプを逆転させて汚水吐出口から汚水を吐出する場合
に、洗浄水吐出口は閉鎖されず開放されたままであるの
で、正転のときほど多くはないにしても幾分洗浄水が吐
出され、既に洗浄が完了した食器を濡らせる不都合があ
る。[0005] However, in all of the above publications, a movable valve is provided only at the sewage discharge port.
When the pump is reversed to discharge sewage from the sewage discharge port, the cleaning water discharge port is not closed but remains open, so that the cleaning water is discharged somewhat if not as much as in the normal rotation, There is an inconvenience of wetting dishes that have already been washed.
【0006】また、前記の可動弁が、単にヒンジにより
揺動自在に取付けられたものであるから、その可動弁上
に設けられた浮子(実開平1−121553号公報の場
合)や、抵抗壁(実開平1−108264号公報の場
合)に水流が当って乱流を生じるため可動弁が振動し、
閉鎖が不完全になる問題もある。Further, since the movable valve is simply mounted so as to be swingable by a hinge, a float provided on the movable valve (in the case of Japanese Utility Model Laid-Open No. 1-112553) and a resistance wall are provided. (In the case of Japanese Utility Model Laid-Open No. 1-108264), the movable valve vibrates due to the turbulent flow caused by the water flow,
There are also problems with incomplete closure.
【0007】そこで、この発明は、洗浄水を噴射する際
は、汚水の吐出を確実に停止せしめ、逆に汚水を吐出す
る際は洗浄水の噴射を確実に停止せしめるようにした食
器洗い機用ポンプを提供することを目的とする。In view of the above, the present invention provides a dishwasher pump in which the discharge of sewage is surely stopped when the wash water is injected, and the discharge of the wash water is surely stopped when the sewage is discharged. The purpose is to provide.
【0008】[0008]
【課題を解決するための手段】上記の目的を達成するた
めに、この発明は、ポンプケーシングに洗浄水吐出口と
汚水吐出口及びこれらの両吐出口に共通の吸込み口を備
え、モータの正転・逆転に応じて上記洗浄水吐出口と汚
水吐出口のいずれか一方から水を吐出する切換弁装置を
設けてなる食器洗い機用ポンプにおいて、上記切換弁装
置を、上記洗浄水吐出口と汚水吐出口を択一的に開閉す
る弁により構成し、上記弁に前記モータの正転及び逆転
時の水流を受ける正転流受圧面と逆転流受圧面を設けた
構成としたものである(請求項1)。In order to achieve the above object, the present invention provides a pump casing having a washing water discharge port, a sewage discharge port, and a common suction port for both of these discharge ports. In a dishwasher pump provided with a switching valve device that discharges water from one of the washing water discharge port and the sewage discharge port in accordance with inversion / reversal, the switching valve device is provided with the washing water discharge port and the sewage The discharge port is configured by a valve that selectively opens and closes, and the valve is provided with a forward flow receiving surface and a reverse flow receiving surface that receive a water flow at the time of forward rotation and reverse rotation of the motor. Item 1).
【0009】上記のポンプはその正転時において、弁に
設けた正転流受圧面が正転流に押圧されて作動し、洗浄
水吐出口と汚水吐出口のいずれか一方を閉止すると共
に、他方を開放する。ポンプの逆転時は上記と逆の作用
を行う。In the forward rotation of the pump, the forward rotation pressure receiving surface provided on the valve is pressed by the forward rotation flow to operate, closing one of the washing water discharge port and the sewage discharge port. Release the other. When the pump rotates reversely, the operation reverse to the above is performed.
【0010】上記の基本構成において、上記洗浄水吐出
口と汚水吐出口を上記ケーシング内周面の同一円弧面上
に形成し、上記弁を該円弧面に沿ってスライドする円弧
状の弁板により形成し、上記弁板にケーシング内方に突
き出した受圧リブを形成した構成を採用することができ
る(請求項2)。In the above basic configuration, the washing water discharge port and the sewage discharge port are formed on the same arc surface of the inner peripheral surface of the casing, and the valve is formed by an arc-shaped valve plate that slides along the arc surface. It is possible to adopt a configuration in which a pressure receiving rib protruding inwardly of the casing is formed on the valve plate.
【0011】この場合は、弁板に設けた受圧リブの一方
の面が正転流受圧面、他方の面が逆転流受圧面となり、
これらのいずれか一方の受圧面に流れが作用して、弁板
をスライドさせ、洗浄水吐出口と汚水吐出口を択一的に
開閉させる。In this case, one surface of the pressure receiving rib provided on the valve plate serves as a forward flow pressure receiving surface, and the other surface serves as a reverse flow pressure receiving surface.
The flow acts on any one of these pressure receiving surfaces to slide the valve plate to selectively open and close the wash water discharge port and the sewage discharge port.
【0012】また、上記の基本構成において、上記洗浄
水吐出口と汚水吐出口との間のケーシング内周面に弁板
のストロークに等しい周方向長さを有し、かつ一端が上
記汚水吐出口に達した凹所を設け、上記弁板背面に取付
けた補助弁を上記凹所に収納し、上記弁板が洗浄水吐出
口を全開したとき、上記補助弁により上記汚水吐出口を
閉止する位置に該補助弁等を取付けた構成を採用するこ
とができる(請求項3)。In the above basic configuration, the casing has an inner circumferential surface between the washing water discharge port and the sewage discharge port having a circumferential length equal to a stroke of a valve plate, and one end having the same length as the sewage discharge port. Where the auxiliary valve attached to the back of the valve plate is housed in the recess, and when the valve plate fully opens the wash water discharge port, the auxiliary valve closes the dirty water discharge port. A configuration in which the auxiliary valve or the like is attached to the second embodiment can be adopted (claim 3).
【0013】この場合は弁板以外に補助弁を有し、その
補助弁により汚水吐出口と閉止するようにしたので、汚
水吐出口を確実に閉止することができる。In this case, an auxiliary valve is provided in addition to the valve plate, and the auxiliary valve closes the sewage discharge port, so that the sewage discharge port can be reliably closed.
【0014】更に、上記の基本構成において、上記弁を
上記洗浄水吐出口と汚水吐出口をそれぞれ開閉する独立
した2枚の弁板により構成し、上記各弁板を上記洗浄水
吐出口と汚水吐出口の間の上記ポンプケーシングの周壁
に回転自在、かつそれぞれ該洗浄水吐出口と汚水吐出口
を外方回転により開閉するように取付け、上記各弁板の
背面相互間を各弁板が90度の位置関係を保って作動す
るようにリンクにより連結し、上記ポンプケーシングの
洗浄水吐出口と汚水吐出口の間の中間点と上記リンクの
中間点との間に付勢ばねを取付けた構成を採用すること
もできる(請求項4)。Further, in the above basic configuration, the valve is constituted by two independent valve plates for opening and closing the washing water discharge port and the sewage discharge port, respectively. The wash water discharge port and the sewage discharge port are rotatably mounted on the peripheral wall of the pump casing between discharge ports, and are respectively opened and closed by outward rotation. A structure in which the springs are connected by a link so as to operate while maintaining the positional relationship of degrees, and an urging spring is attached between an intermediate point between the wash water discharge port and the sewage discharge port of the pump casing and an intermediate point of the link. (Claim 4).
【0015】この場合は、洗浄水吐出口と汚水吐出口に
それぞれ設けられた各弁板の内面がそれぞれ正転流受圧
面、及び逆転流受圧面となり、付勢ばねとリンクにより
各弁板の択一的な開閉作用を確実にしている。In this case, the inner surfaces of the respective valve plates provided at the washing water discharge port and the sewage discharge port serve as a forward rotation pressure receiving surface and a reverse rotation pressure receiving surface, respectively. Ensures an alternative opening and closing action.
【0016】また、上記の基本構成において、上記ポン
プケーシングに形成した円弧状周壁に上記洗浄水吐出口
を設け、上記円弧状周壁に囲まれた該ポンプケーシング
の底面に上記汚水吐出口を設け、上記弁を上記円弧状周
壁内面を摺動する円弧状側面と両端面及び底面とからな
る扇形の箱形弁体と、その底面上の弁室に収納された玉
形弁体とにより構成し、上記箱形弁体の要め部分を上記
円弧状周壁の曲率中心に回転自在に取付け、上記弁室の
底面に上記玉形弁体が落ち込む底孔を設け、上記弁室の
位置を上記箱形弁体が上記洗浄水吐出口を開放した際に
上記底孔が上記汚水吐出口に合致する位置に設定し、上
記底孔に落ち込んだ玉形弁体により上記汚水吐出口を閉
止せしめる構成をとることもできる(請求項5)。In the above basic structure, the washing water discharge port is provided on an arc-shaped peripheral wall formed in the pump casing, and the sewage discharge port is provided on a bottom surface of the pump casing surrounded by the arc-shaped peripheral wall. The valve comprises a fan-shaped box-shaped valve body composed of an arc-shaped side surface and both end surfaces and a bottom surface sliding on the inner surface of the arc-shaped peripheral wall, and a ball-shaped valve body housed in a valve chamber on the bottom surface, A required portion of the box-shaped valve body is rotatably mounted on the center of curvature of the arc-shaped peripheral wall, and a bottom hole in which the ball-shaped valve body falls into the bottom surface of the valve chamber. When the valve body opens the washing water discharge port, the bottom hole is set at a position corresponding to the sewage discharge port, and the sewage discharge port is closed by a ball-shaped valve body that has fallen into the bottom hole. (Claim 5).
【0017】この場合は、扇形の箱形弁体の両側面が正
転流受圧面及び逆転流受圧面となり、洗浄水吐出口が開
放された状態で玉形弁体が汚水吐出口を閉止することに
より、汚水の排出を確実に閉止する。In this case, both side surfaces of the fan-shaped box-shaped valve element serve as a forward flow receiving pressure surface and a reverse flow receiving pressure surface, and the spherical valve element closes the sewage discharge port with the cleaning water discharge port opened. As a result, the discharge of sewage is reliably shut off.
【0018】ところで、上述した基本構成のポンプは、
ポンプケーシング内の洗浄水吐出口と汚水吐出口に切換
弁装置を設ける構成をとっているが、ポンプケーシング
の外部において切換弁装置を設ける構成を採用すること
ができる。By the way, the pump having the above-mentioned basic structure is as follows.
Although the switching valve device is provided at the cleaning water discharge port and the sewage discharge port in the pump casing, a configuration in which the switching valve device is provided outside the pump casing can be adopted.
【0019】この場合は、ポンプケーシングに洗浄水吐
出口と汚水吐出口及びこれらの両吐出口に共通の吸込み
口を備え、モータの正転・逆転に応じて上記洗浄水吐出
口又は汚水吐出口から圧力差のある水を排出する食器洗
い機用ポンプにおいて、上記洗浄水吐出口と汚水吐出口
にそれぞれ接続された補助ケーシングの内部を隔壁によ
り洗浄水室と汚水室に区画し、上記隔壁を上記洗浄水室
と汚水室との圧力差で変形する可変形部材により形成
し、上記洗浄水室に上記洗浄水吐出口に通じた洗浄水入
口と洗浄水出口を設け、上記汚水室に上記汚水吐出口に
通じた汚水入口と汚水出口とを設け、上記の洗浄水出口
と汚水出口とを上記隔壁の両側で対向して設け、上記隔
壁の圧力差による変形により、該洗浄水出口と汚水出口
のいずれか一方を閉止するようにした構成を採用する
(請求項6)。In this case, the pump casing is provided with a washing water discharge port, a sewage discharge port, and a common suction port for both of these discharge ports, and the washing water discharge port or the sewage discharge port is provided depending on whether the motor rotates normally or reversely. In a dishwasher pump that discharges water with a pressure difference from the above, the inside of the auxiliary casing connected to the wash water discharge port and the sewage discharge port is partitioned into a wash water chamber and a sewage chamber by a partition wall, and the partition wall is The cleaning water chamber is formed of a deformable member deformed by a pressure difference between the cleaning water chamber and the cleaning water chamber, and the cleaning water chamber is provided with a cleaning water inlet and a cleaning water outlet communicating with the cleaning water discharge port. A sewage inlet and a sewage outlet connected to the outlet are provided, and the washing water outlet and the sewage outlet are provided opposite to each other on both sides of the partition wall. Close either one To adopt a configuration which is adapted to (claim 6).
【0020】上記の構成によると、正転の際に補助弁ケ
ーシングの洗浄水室の圧力が汚水室の圧力より高くな
り、隔壁が汚水室側に変形し、これにより汚水出口を閉
止させる。また逆転の際に、上記とは逆に汚水室の圧力
が洗浄水室の圧力より高くなり、隔壁が洗浄水側に変形
し、これにより洗浄水吐出口を閉止させる。According to the above configuration, the pressure of the washing water chamber of the auxiliary valve casing becomes higher than the pressure of the sewage chamber at the time of normal rotation, and the partition wall is deformed toward the sewage chamber, thereby closing the sewage outlet. At the time of reverse rotation, the pressure in the sewage chamber becomes higher than the pressure in the rinsing water chamber, and the partition wall is deformed to the rinsing water side, thereby closing the rinsing water discharge port.
【0021】[0021]
【実施の形態】図1から図3に示した第1実施形態の食
器洗い機用ポンプは、ケーシング本体1、その蓋2、イ
ンペラ3、弁板4及びモータ5とにより構成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A dishwasher pump according to a first embodiment shown in FIGS. 1 to 3 comprises a casing body 1, a lid 2, an impeller 3, a valve plate 4, and a motor 5.
【0022】ケーシング本体1は、片面開放の円筒形に
形成され、その開放部分に蓋2が装着される。蓋2の中
央部に吸込み口6が設けられる。ケーシング本体1の中
心部分にモータ5の回転軸7が水密を保持して貫通さ
れ、その回転軸7にインペラ3が取付けられる。インペ
ラ3は、円板8の中心部にボス9を設け、そのボス9の
外周面に上記円板8と一体化された所要数の案内羽根1
1を設けたものであり、このインペラ3により遠心式ポ
ンプを構成する。上記インペラ3の回転方向は、図2
(b)の矢印A方向(インペラ3の外周に水を導く方
向)が正回転となる。The casing body 1 is formed in a cylindrical shape with one side open, and a lid 2 is attached to the open part. A suction port 6 is provided at the center of the lid 2. A rotating shaft 7 of the motor 5 is penetrated through the center of the casing body 1 while maintaining watertightness, and the impeller 3 is attached to the rotating shaft 7. The impeller 3 is provided with a boss 9 at the center of the disk 8, and a required number of guide vanes 1 integrated with the disk 8 on the outer peripheral surface of the boss 9.
1, a centrifugal pump is constituted by the impeller 3. The rotation direction of the impeller 3 is shown in FIG.
The direction of the arrow A (the direction of guiding water to the outer periphery of the impeller 3) in FIG.
【0023】上記のケーシング本体1の周壁には、接線
方向に洗浄水吐出口12が設けられ、その洗浄水吐出口
12から正回転方向に一定距離の周壁部分13を挟んで
離れた位置に、該洗浄水吐出口12と平行で、かつ若干
小径の汚水吐出口14が設けられる。A washing water discharge port 12 is provided on the peripheral wall of the casing main body 1 in a tangential direction, and is located at a position away from the cleaning water discharge port 12 with a peripheral wall portion 13 at a fixed distance in the forward rotation direction. A sewage discharge port 14 which is parallel to the wash water discharge port 12 and has a slightly smaller diameter is provided.
【0024】上記の洗浄水吐出口12、周壁部分13及
び汚水吐出口14は、前記の回転軸7を曲率中心とする
円弧状の周壁上に形成され、その周壁の内側面に切換弁
装置15が設けられる。The washing water discharge port 12, the peripheral wall portion 13, and the sewage discharge port 14 are formed on an arc-shaped peripheral wall having the rotation shaft 7 as a center of curvature, and a switching valve device 15 is provided on the inner surface of the peripheral wall. Is provided.
【0025】この切換弁装置15は、弁板4と、その弁
板4に設けられた受圧リブ16、その弁板4をスライド
自在に嵌合させる案内溝17、17’とにより構成され
る。弁板4は、上記の周壁の内面に沿う円弧状に形成さ
れる。また、案内溝17、17’は上記の周壁に沿った
ケーシング本体1の底面とこれに対向した蓋2の内面に
設けられ、弁板4の上下端面に設けた案内リブ18が各
案内溝17、17’にスライド自在に嵌合される。The switching valve device 15 comprises a valve plate 4, a pressure receiving rib 16 provided on the valve plate 4, and guide grooves 17, 17 'for slidably fitting the valve plate 4. The valve plate 4 is formed in an arc shape along the inner surface of the peripheral wall. The guide grooves 17 and 17 ′ are provided on the bottom surface of the casing body 1 along the peripheral wall and the inner surface of the lid 2 opposed thereto, and guide ribs 18 provided on the upper and lower end surfaces of the valve plate 4 are provided with the guide grooves 17 and 17 ′. , 17 '.
【0026】上記の弁板4は、洗浄水吐出口12とこれ
に隣接した周壁部分13にわたる幅、及び該周壁部分1
3からこれに隣接した汚水吐出口14にわたる幅のいず
れか大きい方に等しい幅を有し、図2(b)のように、
汚水吐出口14に密着してこれを閉止している場合は、
洗浄水吐出口12が開放される。逆に洗浄水吐出口12
が閉止される場合は汚水吐出口14が開放される。即
ち、上記の弁板4は洗浄水吐出口12と汚水吐出口14
を択一的に開閉する。The valve plate 4 has a width extending over the washing water discharge port 12 and the peripheral wall portion 13 adjacent thereto, and the width of the peripheral wall portion 1.
3 has a width equal to the larger of the widths extending from the sewage discharge port 14 adjacent thereto to the sewage discharge port 14, and as shown in FIG.
If the sewage discharge port 14 is tightly closed and closed,
The cleaning water discharge port 12 is opened. Conversely, the washing water outlet 12
Is closed, the wastewater discharge port 14 is opened. That is, the valve plate 4 is provided with the washing water discharge port 12 and the sewage discharge port 14.
Is opened and closed alternatively.
【0027】上記の弁板4の一側縁には、回転軸7と平
行な方向の受圧リブ16が内向きに突設される。この受
圧リブ16の一方の側面はポンプが正転する際の流れの
圧力を受ける面、即ち正転流受圧面19となり(図2
(c)参照)、他方の面は逆転流受圧面21となる。On one side edge of the valve plate 4, a pressure receiving rib 16 in a direction parallel to the rotation shaft 7 is provided so as to project inward. One side surface of the pressure receiving rib 16 is a surface for receiving the pressure of the flow when the pump rotates forward, that is, a forward rotation pressure receiving surface 19 (FIG. 2).
(See (c)), the other surface is the reverse flow pressure receiving surface 21.
【0028】上記の正転流受圧面19に正転流による水
圧が作用すると、弁板4は図2(b)の実線で示すよう
に汚水吐出口14を閉止し、また逆転流受圧面21に逆
転流による水圧が作用すると、二点鎖線で示すようにス
ライドして洗浄水吐出口12を閉止する。When the water pressure due to the forward flow acts on the forward flow receiving surface 19, the valve plate 4 closes the sewage discharge port 14 as shown by the solid line in FIG. When the water pressure due to the reverse flow acts on the washing water, the washing water discharge port 12 is closed by sliding as shown by a two-dot chain line.
【0029】以上の構成でなる第1実施形態のポンプ2
2は図3に示すように、食器洗い器23に使用され、ケ
ーシング本体1の吸込み口6を水槽24に接続すると共
に、洗浄水吐出口12を洗浄ノズル群25に接続し、更
に汚水吐出口14を排水口26に接続する。The pump 2 of the first embodiment having the above configuration
3 is used in a dishwasher 23, as shown in FIG. 3, connects the suction port 6 of the casing body 1 to a water tank 24, connects the cleaning water discharge port 12 to a cleaning nozzle group 25, and further connects the sewage discharge port 14 to the cleaning nozzle group 25. Is connected to the drain 26.
【0030】食器を洗浄する際は、外部から水槽24に
水を供給すると共に、ポンプ22を正回転させる。そう
すると、弁板4の正転流受圧面19に水圧が作用し、こ
れによって弁板4が移動され、洗浄水吐出口12を開放
すると共に、汚水吐出口14を閉止する。水は洗浄ノズ
ル群25から食器に向けて噴射され、食器を洗浄する。When washing dishes, water is supplied from outside to the water tank 24, and the pump 22 is rotated forward. Then, the water pressure acts on the forward rotation pressure receiving surface 19 of the valve plate 4, thereby moving the valve plate 4, opening the washing water discharge port 12 and closing the sewage discharge port 14. Water is sprayed from the washing nozzle group 25 toward the tableware to wash the tableware.
【0031】洗浄が終了するとポンプ22を逆転させ
る。そうすると、逆転流受圧面21に水圧が作用して弁
板4が移動され、汚水吐出口14を開放すると共に、洗
浄水吐出口12を閉止する。これにより、洗浄後の汚水
は排水口26から機外へ排出される。When the washing is completed, the pump 22 is reversed. Then, water pressure acts on the reverse flow pressure receiving surface 21 to move the valve plate 4, thereby opening the dirty water discharge port 14 and closing the wash water discharge port 12. As a result, the waste water after the cleaning is discharged from the drain port 26 to the outside of the machine.
【0032】図4及び図5に示した第2実施形態は、基
本的には前記の第1実施形態と同様である。相違する点
は、汚水吐出口14が洗浄水吐出口12に対して90度
向きを異にして設けられた点、洗浄水吐出口12と汚水
吐出口14との間の周壁部分13の内面に凹所27が設
けられた点、弁板4の背面に玉形の補助弁28が設けら
れた点、及び弁板4の両側縁に2本の受圧リブ16、1
6’を設けた点である。これらの2本の受圧リブ16、
16’にそれぞれ正転流受圧面19、19’及び逆転流
受圧面21、21’が設けられる。The second embodiment shown in FIGS. 4 and 5 is basically the same as the first embodiment. The difference is that the sewage discharge port 14 is provided so as to be 90 degrees different from the wash water discharge port 12, and the inner surface of the peripheral wall portion 13 between the wash water discharge port 12 and the sewage discharge port 14. A point where a recess 27 is provided, a point where a ball-shaped auxiliary valve 28 is provided on the back surface of the valve plate 4, and two pressure receiving ribs 16, 1 and 2 on both side edges of the valve plate 4.
6 'is provided. These two pressure receiving ribs 16,
16 ′ are provided with forward flow receiving surfaces 19 and 19 ′ and reverse flow receiving surfaces 21 and 21 ′, respectively.
【0033】上記の補助弁28は、図5(a)に示すよ
うに、弁板4が洗浄水吐出口12を全開した際に汚水吐
出口14を閉止する位置関係にあり、弁板4がスライド
して洗浄水吐出口12を閉止したときは、該補助弁28
は凹所27の一端に移動する。As shown in FIG. 5 (a), the auxiliary valve 28 has a positional relationship of closing the sewage discharge port 14 when the valve plate 4 fully opens the wash water discharge port 12. When the sliding water outlet 12 is closed by sliding, the auxiliary valve 28
Moves to one end of the recess 27.
【0034】第2実施形態のポンプは以上のごときもの
であり、汚水吐出口14を補助弁28で閉止するように
したので、その補助弁28として玉形弁のようなシール
性のよいものを選定することにより、洗浄時において一
層確実に汚水吐出口14を閉止することができる。The pump according to the second embodiment is as described above. Since the sewage discharge port 14 is closed by the auxiliary valve 28, the auxiliary valve 28 having a good sealing property such as a ball valve is used. By making a selection, the sewage discharge port 14 can be closed more reliably during cleaning.
【0035】図6及び図7に示した第3実施形態は、ケ
ーシング本体1は、周壁29が半円形部分の開放端と方
形部分の開放端とを連結一体化した形状をなし、その周
壁29に底壁31と端壁32を設けたものであり、半円
形部分の曲率中心部分にインペラ3を配置し、底壁31
を貫通したモータ5の回転軸7をこれに連結している。In the third embodiment shown in FIGS. 6 and 7, the casing body 1 has a shape in which the peripheral wall 29 is formed by integrally connecting the open end of the semicircular portion and the open end of the rectangular portion. , A bottom wall 31 and an end wall 32 are provided, and the impeller 3 is disposed at a center of curvature of a semicircular portion.
Is connected to the rotating shaft 7 of the motor 5 which penetrates through.
【0036】また方形部分の一方の側壁29aに沿って
インペラ3の正転方向に対して接線方向に延びた洗浄水
吐出口12が設けられ、他方の側壁29bに沿ってこれ
と平行の汚水吐出口14が設けられる。A washing water discharge port 12 is provided along one side wall 29a of the rectangular portion and extending tangentially to the normal rotation direction of the impeller 3, and a sewage discharge port is provided along the other side wall 29b in parallel therewith. An outlet 14 is provided.
【0037】上記の洗浄水吐出口12と汚水吐出口14
との間の周壁部分13は、その内面がインペラ3の外周
に沿った円弧面をなし、またその両端部に外向きに形成
された壁部33、33が前記の洗浄水吐出口12及び汚
水吐出口14の内側壁を形成する。The above-mentioned washing water discharge port 12 and sewage discharge port 14
The inner wall of the peripheral wall portion 13 forms an arcuate surface along the outer periphery of the impeller 3, and the wall portions 33, 33 formed at both ends thereof are outwardly facing the cleaning water discharge port 12 and the sewage water. An inner wall of the discharge port 14 is formed.
【0038】また、上記の壁部33、33の外端部にそ
れぞれ洗浄水弁板34と汚水弁板35がヒンジ36、3
7により回転自在に取付けられ、各弁板34、35に対
向した弁座38、39がそれぞれ両方の側壁29a、2
9bに設けられる。Washing water valve plates 34 and sewage valve plates 35 are attached to the outer ends of the wall portions 33, 33, respectively, by hinges 36, 3 respectively.
7, the valve seats 38, 39 opposed to the respective valve plates 34, 35 have both side walls 29a, 2
9b.
【0039】また、上記ケーシング本体1の方形部分の
端壁32には、洗浄水吐出口12に対向した洗浄水接続
口41、及び汚水吐出口14に対向した汚水接続口42
が設けられ、またこれらの両接続口41、42相互間の
端壁32の両側面には、各弁板34、35の開放時の休
止座43、44が設けられる。A washing water connection port 41 facing the washing water discharge port 12 and a sewage connection port 42 facing the sewage discharge port 14 are provided on the end wall 32 of the rectangular portion of the casing body 1.
In addition, on both side surfaces of the end wall 32 between these two connection ports 41, 42, rest seats 43, 44 when the respective valve plates 34, 35 are opened are provided.
【0040】各弁板34、35は、そのヒンジ36、3
7を中心として90度の範囲で回転し、弁座38、39
に接触することでそれぞれ洗浄水吐出口12及び汚れ吐
出口14を閉止し、また休止座43、44に戻ることに
より開放する。即ち、各弁板34、35は弁座38、3
9から外方において90度の範囲で回動する。Each valve plate 34, 35 has its hinge 36, 3
7, the valve seats 38, 39
, The cleaning water discharge port 12 and the dirt discharge port 14 are closed, respectively, and are returned to the rest seats 43 and 44 to be opened. That is, each valve plate 34, 35 is provided with a valve seat 38, 3
It rotates in a range of 90 degrees outward from 9.
【0041】上記の各弁板34、35の背面相互間には
リンク45の両端が回動自在に取付けられる。このリン
ク45は一方の弁板34と他方の弁板35が90度の位
置関係を常に保つことができる長さに設定される。Both ends of a link 45 are rotatably mounted between the rear surfaces of the valve plates 34 and 35. The link 45 is set to a length that allows the one valve plate 34 and the other valve plate 35 to always maintain a 90-degree positional relationship.
【0042】また、前記周壁部分13の両端の壁部3
3、33の中間部分において、ケーシング本体1の底壁
31にピン46が設けられ、そのピン46とリンク45
の中間部分に引張り形のコイルばね47が取付けられ
る。図7(a)の実線で示すように、洗浄水弁板34が
開放され、汚水弁板35が閉止されている場合は、リン
ク45が汚水弁板35側に偏位しているため、コイルば
ね47もその方向に傾いた状態にあり、そのコイルばね
47のばね力により汚水弁板35はその弁座39に押圧
されて汚水吐出口14を閉止する。一方、洗浄水弁板3
4はその休止座43に押圧されて洗浄水吐出口12を開
放する。リンク45及びコイルばね47の作用は上記の
各弁板34、35の開閉関係が逆になっても同様である
(図7(a)の2点鎖線参照)。The wall portions 3 at both ends of the peripheral wall portion 13
A pin 46 is provided on the bottom wall 31 of the casing main body 1 at an intermediate portion between the pin 46 and the link 45.
A tension type coil spring 47 is attached to an intermediate portion of the coil spring. As shown by the solid line in FIG. 7A, when the washing water valve plate 34 is opened and the sewage valve plate 35 is closed, the link 45 is deviated to the sewage valve plate 35 side. The spring 47 is also inclined in that direction, and the sewage valve plate 35 is pressed by the valve seat 39 by the spring force of the coil spring 47 to close the sewage discharge port 14. On the other hand, the washing water valve plate 3
4 is pressed by the rest seat 43 to open the washing water discharge port 12. The operation of the link 45 and the coil spring 47 is the same even when the opening and closing relationship of the valve plates 34 and 35 is reversed (see the two-dot chain line in FIG. 7A).
【0043】なお、上記コイルばね47のばね力は、イ
ンペラ3による正転流を洗浄水弁板34の内面側の面、
即ち正転流受圧面48で受けた際に該弁板34が開放さ
れると共に弁板35が閉止され、また逆転流を汚水弁板
35の内面側の逆転流受圧面49で受けた際に該弁板3
5が開放されると共に弁板34が閉止される程度の大き
さに設定される。その他、インペラ3の構造、吸込み口
6の構造等は前述のものと同様である。Incidentally, the spring force of the coil spring 47 causes the forward rotation flow by the impeller 3 to be directed to the inner surface of the flush water valve plate 34,
That is, when the valve plate 34 is opened and the valve plate 35 is closed when the reverse flow is received by the forward flow receiving surface 48, and when the reverse flow is received by the reverse flow receiving surface 49 on the inner side of the sewage valve plate 35. The valve plate 3
5 is set to such a size that the valve plate 34 is opened and the valve plate 34 is closed. In addition, the structure of the impeller 3 and the structure of the suction port 6 are the same as those described above.
【0044】第3実施形態のポンプは以上のごときもの
であり、これが正転すると、正転流の圧力により、洗浄
水弁板34が開放されると共に、リンク45に連動され
て汚水弁板35が閉止する(図7(a)の実線参照)。
また、ポンプが逆転すると、上乱と逆の作用により汚水
弁板35が開放されると共に、洗浄水弁板34が閉止さ
れる(図7(a)二点鎖線参照)。The pump of the third embodiment is as described above. When the pump rotates in the forward direction, the flush water valve plate 34 is opened by the pressure of the forward flow, and the sewage valve plate 35 is linked with the link 45. Are closed (see the solid line in FIG. 7A).
Further, when the pump reversely rotates, the sewage valve plate 35 is opened and the flush water valve plate 34 is closed by the action opposite to the disturbance (see the two-dot chain line in FIG. 7A).
【0045】次に、図8及び図9に示した第4実施形態
は、上下の位置関係が限定される。即ち、ケーシング本
体1は、相い対向した同一の大きさの半円形の周壁部分
51、51’をその半径と同程度の長さの平行な側壁5
2、52’で連結した長円形のものであり、天板54を
有し、その天板54に対向した下面が開放され、その開
放された下面に蓋53が取付けられる。Next, in the fourth embodiment shown in FIGS. 8 and 9, the vertical positional relationship is limited. That is, the casing main body 1 is formed by forming the opposing semicircular peripheral wall portions 51, 51 'of the same size facing each other into parallel side walls 5 having a length approximately equal to the radius thereof.
It is an oval shape connected by 2, 52 ', has a top plate 54, the lower surface facing the top plate 54 is opened, and a lid 53 is attached to the opened lower surface.
【0046】上記ケーシング本体1の一方の半円形の周
壁部分51の曲率中心にインペラ3が配置され、天板5
4を貫通したモータ5の回転軸7がこれに連結される。
またそのインペラ3に対向した蓋53の部分に吸込み口
6が設けられる。The impeller 3 is arranged at the center of curvature of one semicircular peripheral wall portion 51 of the casing body 1,
The rotation shaft 7 of the motor 5 penetrating through 4 is connected to this.
In addition, a suction port 6 is provided in a portion of the lid 53 facing the impeller 3.
【0047】また他方の半円形の周壁部分51’にイン
ペラ3の正転方向の接線方向に突出して洗浄水吐出口1
2が設けられる。The cleaning water discharge port 1 protrudes from the other semicircular peripheral wall portion 51 'in the tangential direction of the forward rotation direction of the impeller 3.
2 are provided.
【0048】上記他方の半円形の周壁部分51’を覆う
蓋53の部分には、上記他方の側壁52側に偏位して、
前記の洗浄水吐出口12より小径の汚水吐出口14が設
けられる。The portion of the lid 53 covering the other semicircular peripheral wall portion 51 ′ is displaced toward the other side wall 52 side,
A sewage discharge port 14 having a smaller diameter than the aforementioned wash water discharge port 12 is provided.
【0049】また、上記ケーシング本体1の他方の半円
径の周壁部分51’の曲率中心には、扇形の箱形弁体5
5の要め部分がピン56により天板54と蓋53とに回
転自在に取付けられる。A sector-shaped box-shaped valve element 5 is provided at the center of curvature of the other semicircular peripheral wall portion 51 'of the casing body 1.
The essential part 5 is rotatably attached to the top plate 54 and the lid 53 by pins 56.
【0050】上記の箱形弁体55は、扇形の底板57
と、周壁部分51’に沿って摺動する円弧状側面58
と、両端面59、59’とから成り、その底板57に前
記の汚水吐出口14と合致する底孔61が設けられ、そ
の底孔61を囲んだ弁室62が設けられる。上記の弁室
62内には玉形弁体63が収納され、上記底孔61が汚
水吐出口14と合致した際に、該玉形弁体63が底孔6
1に落ち込むと共に、該汚水吐出口14を閉止する。The box-shaped valve element 55 has a fan-shaped bottom plate 57.
And an arcuate side surface 58 sliding along the peripheral wall portion 51 '.
The bottom plate 57 is provided with a bottom hole 61 corresponding to the sewage discharge port 14, and a valve chamber 62 surrounding the bottom hole 61 is provided. A ball-shaped valve body 63 is housed in the valve chamber 62, and when the bottom hole 61 matches the sewage discharge port 14, the ball-shaped valve body 63 is
And the sewage discharge port 14 is closed.
【0051】上記の箱形弁体55は上述のように、玉形
弁体63が底孔61に落ち込んで汚水吐出口14を閉止
した状態で洗浄水吐出口12を開放し、また、その状態
から角度θ(図9(a)参照)だけ回転すると、円弧状
側面58で洗浄水吐出口12を閉止すると共に、玉形弁
体63を移動せしめ、汚水吐出口14を開放する。As described above, the box-shaped valve element 55 opens the washing water discharge port 12 in a state where the ball-shaped valve element 63 falls into the bottom hole 61 and closes the sewage water discharge port 14. When it rotates from the angle θ (see FIG. 9A), the cleaning water discharge port 12 is closed at the arc-shaped side surface 58, the ball valve body 63 is moved, and the dirty water discharge port 14 is opened.
【0052】いま、図9(a)のように、ポンプを正回
転させると、正転流が箱形弁体55の一方の端面59を
押圧して、洗浄水吐出口12を開放させると共に、玉形
弁体63が底孔61に落ち込んで汚水吐出口14を閉止
する。この場合箱形弁体55の端面59が正転流受圧面
となる。Now, as shown in FIG. 9 (a), when the pump is rotated forward, the forward flow presses one end face 59 of the box-shaped valve element 55 to open the washing water discharge port 12, and The ball-shaped valve body 63 falls into the bottom hole 61 and closes the sewage discharge port 14. In this case, the end face 59 of the box-shaped valve element 55 serves as a forward rotation pressure receiving face.
【0053】また、ポンプを逆転させると、逆転流が他
方の端面59’に作用して、箱形弁体55を図9(a)
の二点鎖線の状態に移動することにより、汚水吐出口1
4を開放すると共に、洗浄水吐出口12を閉止する。こ
の場合、箱形弁体55の端面59’が反転流受圧面とな
る。When the pump is reversed, the reverse flow acts on the other end face 59 ', causing the box-shaped valve body 55 to move as shown in FIG.
By moving to the state indicated by the two-dot chain line in FIG.
4 is opened, and the washing water discharge port 12 is closed. In this case, the end face 59 'of the box-shaped valve element 55 becomes the reverse flow pressure receiving face.
【0054】次に、図10(a)は第5実施形態、同
(b)は第6実施形態を示す。前述の第1〜第4実施形
態は、いずれもケーシングの内部に切換弁装置を設け、
洗浄水吐出口12と汚水吐出口14とを択一的に開閉す
るようにしていたが、第5及び第6実施形態のものは、
ポンプ64のケーシング65に上記のごとき切換弁装置
を設けることなく、単に正転・逆転可能なインペラ66
と洗浄水吐出口67と汚水吐出口68とを設けている。Next, FIG. 10A shows a fifth embodiment, and FIG. 10B shows a sixth embodiment. In each of the first to fourth embodiments, the switching valve device is provided inside the casing,
Although the washing water discharge port 12 and the sewage discharge port 14 are selectively opened and closed, the fifth and sixth embodiments have
Without providing the switching valve device as described above in the casing 65 of the pump 64, the impeller 66 that can simply rotate forward and reverse
And a cleaning water discharge port 67 and a sewage discharge port 68 are provided.
【0055】第5及び第6実施形態の場合は、上記ケー
シング65とは別体の補助ケーシング69を設け、その
内部を隔壁71により洗浄水室72と汚水室73とに区
画している。そして、洗浄水室72の側面に洗浄水入口
74、汚水室73の側面に汚水入口75をそれぞれ設
け、また洗浄水室72の上記隔壁71の中央部分と対向
した面に洗浄水出口76を設け、同様に汚水室73の隔
壁71の中央部分と対向した面に汚水出口77を設けて
いる。In the case of the fifth and sixth embodiments, an auxiliary casing 69 is provided separately from the casing 65, and the inside thereof is partitioned into a washing water chamber 72 and a sewage chamber 73 by a partition wall 71. A cleaning water inlet 74 is provided on the side of the cleaning water chamber 72, a sewage inlet 75 is provided on the side of the sewage chamber 73, and a cleaning water outlet 76 is provided on the surface of the cleaning water chamber 72 facing the central portion of the partition wall 71. Similarly, a sewage outlet 77 is provided on a surface of the sewage chamber 73 facing the central portion of the partition wall 71.
【0056】上記の隔壁71は、図10(a)の第5実
施形態の場合は、フレキシブルな薄板78の中央部の穴
79にプラスチックゴム等からなる柔軟な薄膜製の袋8
1の中に液体82を封入してなる可変部材83を取付け
ている。In the case of the fifth embodiment shown in FIG. 10A, the partition 71 is provided with a flexible thin film bag 8 made of plastic rubber or the like in a hole 79 at the center of a flexible thin plate 78.
A variable member 83 in which a liquid 82 is sealed is mounted in one.
【0057】上記の可変部材83は洗浄水室72と汚水
室73との圧力差によって変形し、洗浄水出口76又は
汚水出口77のいずれか一方を閉止し、他方を開放す
る。即ち、択一的に開閉する。The variable member 83 is deformed by a pressure difference between the washing water chamber 72 and the sewage chamber 73, and closes one of the washing water outlet 76 and the sewage outlet 77 and opens the other. That is, they are selectively opened and closed.
【0058】図10(b)の第6実施形態の場合は、隔
壁71自体がプラスチックゴム等の柔軟な薄膜からなる
可変部材83’により形成され、上記と同様に洗浄水室
72と汚水室73との圧力差によって、洗浄水出口76
と汚水出口77を択一的に開閉する。In the case of the sixth embodiment shown in FIG. 10B, the partition 71 itself is formed by a variable member 83 'made of a flexible thin film such as plastic rubber or the like. The cleaning water outlet 76
And the sewage outlet 77 is selectively opened and closed.
【0059】第5及び第6実施形態は以上のごときもの
であり、ポンプ64を正回転させた場合は、洗浄水吐出
口67から排出される流れの方が汚水吐出口68から排
出される流れより圧力が高いため、補助ケーシング69
内においては洗浄水室72が汚水室73より圧力が高く
なり、可変部材83、83’を二点鎖線で示すように汚
水室73側に変形させ、汚水出口77を閉止する。The fifth and sixth embodiments are as described above. When the pump 64 is rotated forward, the flow discharged from the washing water discharge port 67 is smaller than the flow discharged from the sewage discharge port 68. Since the pressure is higher, the auxiliary casing 69
Inside, the pressure of the washing water chamber 72 becomes higher than that of the sewage chamber 73, and the variable members 83 and 83 ′ are deformed toward the sewage chamber 73 as shown by a two-dot chain line, and the sewage outlet 77 is closed.
【0060】また、ポンプ64を逆回転させると、前記
と圧力関係が逆になり、可変部材83、83’が洗浄水
出口76を閉止する。When the pump 64 is rotated in the reverse direction, the pressure relationship is reversed, and the variable members 83 and 83 'close the washing water outlet 76.
【0061】図11は比較例として、1台のポンプ84
を用い、その吐出口85に切換弁装置86を設けたもの
を示す。この場合の切換弁装置86は、弁ケース87の
内部にボール弁88を収納し、そのボール弁88に設け
たT形通路により、洗浄水吐出口89と汚水吐出口91
を切換えるようにしたものである。該ボール弁88と弁
ケース87内面とのすり合わせを精確に仕上げることに
より、シール部材を用いることなく、シールを図ること
ができる利点があるが、ボール弁88を回転させるため
に電磁ソレノイドが必要となる。FIG. 11 shows one pump 84 as a comparative example.
And a switching valve device 86 provided at the discharge port 85 thereof. In the switching valve device 86 in this case, a ball valve 88 is housed inside a valve case 87, and a wash water discharge port 89 and a sewage discharge port 91 are provided by a T-shaped passage provided in the ball valve 88.
Is switched. By precisely finishing the ball valve 88 and the inner surface of the valve case 87, there is an advantage that sealing can be achieved without using a sealing member, but an electromagnetic solenoid is required to rotate the ball valve 88. Become.
【0062】[0062]
【発明の効果】以上のように、請求項1〜5の発明によ
れば、切換弁装置の弁板に正転流受圧面と逆転流受圧面
を設けて、弁板により洗浄水吐出口と汚水吐出口とを択
一的に開閉するようにしたため、一方の吐出口から吐出
している際に他方の吐出口を確実に閉止する効果があ
る。As described above, according to the first to fifth aspects of the present invention, a forward flow pressure receiving surface and a reverse flow pressure receiving surface are provided on the valve plate of the switching valve device, and the flush water discharge port is formed by the valve plate. Since the sewage discharge port is selectively opened and closed, there is an effect that when discharging from one discharge port, the other discharge port is securely closed.
【0063】また、請求項6の発明によれば、ポンプ内
部に切換弁装置を設けることなく、また電磁ソレノイド
などのアクチュエータを用いることなく洗浄水の吐出と
汚水の吐出を切換えることができる。According to the sixth aspect of the present invention, the discharge of the washing water and the discharge of the sewage can be switched without providing a switching valve device inside the pump and without using an actuator such as an electromagnetic solenoid.
【図1】第1実施形態の分解斜視図FIG. 1 is an exploded perspective view of a first embodiment.
【図2】(a)同上の縦断面図 (b)同上の横断面図 (c)同上の一部拡大断面図2A is a longitudinal sectional view of the same, FIG. 2B is a transverse sectional view of the same, and FIG.
【図3】同上の使用状態の概略図FIG. 3 is a schematic view of a use state of the above.
【図4】第2実施形態の分解斜視図FIG. 4 is an exploded perspective view of the second embodiment.
【図5】(a)同上の横断平面図 (b)同上の一部省略拡大断面図FIG. 5 (a) is a cross-sectional plan view of the same, and (b) is a partially omitted enlarged cross-sectional view of the same.
【図6】第3実施形態の分解斜視図FIG. 6 is an exploded perspective view of the third embodiment.
【図7】(a)同上の横断平面図 (b)同上の縦断面図FIG. 7A is a cross-sectional plan view of the same, and FIG.
【図8】第4実施形態の分解斜視図FIG. 8 is an exploded perspective view of the fourth embodiment.
【図9】(a)同上の横断底面図 (b)同上の縦断面図9A is a cross-sectional bottom view of the above-mentioned embodiment, and FIG.
【図10】(a)第5実施形態の断面図 (b)第6実施形態の断面図10A is a sectional view of a fifth embodiment, and FIG. 10B is a sectional view of a sixth embodiment.
【図11】(a)比較例の横断面図 (b)(a)図のb−b線の断面図 (c)(b)図のc−c線の断面図11A is a cross-sectional view of a comparative example. FIG. 11B is a cross-sectional view taken along line bb in FIG. 11A. FIG. 11C is a cross-sectional view taken along line cc in FIG.
1 ケーシング本体 2 蓋 3 インペラ 4 弁板 5 モータ 6 吸込み口 7 回転軸 8 円板 9 ボス 11 案内羽根 12 洗浄水吐出口 13 周壁部分 14 汚水吐出口 15 切換弁装置 16、16’ 受圧リブ 17、17’ 案内溝 18 案内リブ 19、19’ 正転流受圧面 21、21’ 逆転流受圧面 22 ポンプ 23 食器洗い器 24 水槽 25 洗浄ノズル群 26 排水口 27 凹所 28 補助弁 29 周壁 29a、29b 側壁 31 底壁 32 端壁 33 壁部 34 洗浄水弁板 35 汚水弁板 36、37 ヒンジ 38、39 弁座 41 洗浄水接続口 42 汚水接続口 43、44 休止座 45 リンク 46 ピン 47 コイルばね 48 正転流受圧面 49 逆転流受圧面 51、51’ 周壁部分 52、52’ 側壁 53 蓋 54 天板 55 箱形弁体 56 ピン 57 底板 58 円弧状側面 59、59’ 端面 61 底孔 62 弁室 63 玉形弁体 64 ポンプ 65 ケーシング 66 インペラ 67 洗浄水吐出口 68 汚水吐出口 69 補助ケーシング 71 隔壁 72 洗浄水室 73 汚水室 74 洗浄水入口 75 汚水入口 76 洗浄水出口 77 汚水出口 78 薄板 79 穴 81 袋 82 液体 83、83’ 可変部材 84 ポンプ 85 排出口 86 切換弁装置 87 弁ケース 88 ボール弁 89 洗浄水吐出口 91 汚水吐出口 DESCRIPTION OF SYMBOLS 1 Casing main body 2 Lid 3 Impeller 4 Valve plate 5 Motor 6 Suction port 7 Rotating shaft 8 Disk 9 Boss 11 Guide vane 12 Wash water discharge port 13 Peripheral wall part 14 Sewage discharge port 15 Switching valve device 16, 16 'Pressure receiving rib 17, 17 'guide groove 18 guide rib 19, 19' forward flow receiving surface 21, 21 'reverse flow receiving surface 22 pump 23 dishwasher 24 water tank 25 washing nozzle group 26 drain outlet 27 recess 28 auxiliary valve 29 peripheral wall 29a, 29b side wall 31 bottom wall 32 end wall 33 wall 34 flush water valve plate 35 sewage valve plate 36, 37 hinge 38, 39 valve seat 41 flush water connection port 42 sewage connection port 43, 44 rest seat 45 link 46 pin 47 coil spring 48 correct Commutation pressure receiving surface 49 Reverse commutation pressure receiving surface 51, 51 ′ Peripheral wall portion 52, 52 ′ Side wall 53 Cover 54 Top plate 55 Box-shaped valve body 56 Pin 57 Bottom plate 58 Arc-shaped side surface 59, 59 'End surface 61 Bottom hole 62 Valve chamber 63 Globe valve body 64 Pump 65 Casing 66 Impeller 67 Wash water discharge port 68 Waste water discharge port 69 Auxiliary casing 71 Partition wall 72 Cleaning water chamber 73 Waste water chamber 74 Wash water inlet 75 Sewage inlet 76 Wash water outlet 77 Sewage outlet 78 Thin plate 79 Hole 81 Bag 82 Liquid 83, 83 'Variable member 84 Pump 85 Outlet 86 Switching valve device 87 Valve case 88 Ball valve 89 Wash water outlet 91 Sewage spout Exit
Claims (6)
吐出口及びこれらの両吐出口に共通の吸込み口を備え、
モータの正転・逆転に応じて上記洗浄水吐出口と汚水吐
出口のいずれか一方から水を吐出する切換装置を設けて
なる食器洗い機用ポンプにおいて、上記切換弁装置を、
上記洗浄水吐出口と汚水吐出口を択一的に開閉する弁に
より構成し、上記弁に前記モータの正転及び逆転時の水
流を受ける正転流受圧面と逆転流受圧面を設けたことを
特徴とする食器洗い機用ポンプ。A pump casing provided with a washing water discharge port, a sewage discharge port, and a common suction port for both of these discharge ports;
In a dishwasher pump provided with a switching device that discharges water from one of the washing water discharge port and the sewage discharge port according to the forward rotation and reverse rotation of the motor, the switching valve device,
The cleaning water discharge port and the sewage discharge port are selectively opened and closed by a valve, and the valve is provided with a forward flow receiving pressure surface and a reverse flow receiving pressure surface for receiving the water flow at the time of forward rotation and reverse rotation of the motor. A dishwasher pump characterized by the following:
ーシング内周面の同一円弧面上に形成し、上記弁を該円
弧面に沿ってスライドする円弧状の弁板により形成し、
上記弁板にケーシング内方に突き出した受圧リブを形成
したことを特徴とする請求項1に記載の食器洗い機用ポ
ンプ。2. The cleaning water discharge port and the sewage discharge port are formed on the same arc surface of the casing inner peripheral surface, and the valve is formed by an arc-shaped valve plate that slides along the arc surface.
2. The dishwasher pump according to claim 1, wherein a pressure receiving rib protruding inward of the casing is formed on the valve plate.
ケーシング内周面に弁板のストロークに等しい周方向長
さを有し、かつ一端が上記汚水吐出口に達した凹所を設
け、上記弁板背面に取付けた補助弁を上記凹所に収納
し、上記弁板が洗浄水吐出口を全開したとき、上記補助
弁により上記汚水吐出口を閉止する位置に該補助弁を取
付けたことを特徴とする請求項2に記載の食器洗い機用
ポンプ。3. A recess having a circumferential length equal to a stroke of a valve plate and having one end reaching the sewage discharge port on an inner peripheral surface of the casing between the wash water discharge port and the sewage discharge port. The auxiliary valve mounted on the back of the valve plate is housed in the recess, and the auxiliary valve is mounted at a position where the auxiliary valve closes the sewage discharge port when the valve plate fully opens the wash water discharge port. 3. The dishwasher pump according to claim 2, wherein:
をそれぞれ開閉する独立した2枚の弁板により構成し、
上記各弁板を上記洗浄水吐出口と汚水吐出口の間の上記
ポンプケーシングの周壁に回転自在、かつそれぞれ該洗
浄水吐出口と汚水吐出口を外方回転により開閉するよう
に取付け、上記各弁板の背面相互間を各弁板が90度の
位置関係を保って作動するようにリンクにより連結し、
上記ポンプケーシングの洗浄水吐出口と汚水吐出口の間
の中間点と上記リンクの中間点との間に付勢ばねを取付
けたことを特徴とする請求項1に記載の食器洗い機用ポ
ンプ。4. The valve is constituted by two independent valve plates for opening and closing the wash water discharge port and the sewage discharge port, respectively.
Each of the valve plates is rotatably mounted on the peripheral wall of the pump casing between the wash water discharge port and the sewage discharge port, and the wash water discharge port and the sewage discharge port are respectively opened and closed by outward rotation. The rear surfaces of the valve plates are connected by a link so that each valve plate operates while maintaining a positional relationship of 90 degrees,
2. The dishwasher pump according to claim 1, wherein an urging spring is mounted between an intermediate point between the washing water discharge port and the sewage discharge port of the pump casing and an intermediate point of the link.
周壁に上記洗浄水吐出口を設け、上記円弧状周壁に囲ま
れた該ポンプケーシングの底面に上記汚水吐出口を設
け、上記弁を上記円弧状周壁内面を摺動する円弧状側面
と両端面及び底面とからなる扇形の箱形弁体と、その底
面上の弁室に収納された玉形弁体とにより構成し、上記
箱形弁体の要め部分を上記円弧状周壁の曲率中心に回転
自在に取付け、上記弁室の底面に上記玉形弁体が落ち込
む底孔を設け、上記弁室の位置を上記箱形弁体が上記洗
浄水吐出口を開放した際に上記底孔が上記汚水吐出口に
合致する位置に設定し、上記底孔に落ち込んだ玉形弁体
により上記汚水吐出口を閉止せしめることを特徴とする
請求項1に記載の食器洗い機用ポンプ。5. The cleaning water discharge port is provided on an arc-shaped peripheral wall formed in the pump casing, the sewage discharge port is provided on a bottom surface of the pump casing surrounded by the arc-shaped peripheral wall, and the valve is connected to the arc-shaped. A fan-shaped box-shaped valve body composed of an arc-shaped side surface sliding on the inner surface of the peripheral wall, both end surfaces, and a bottom surface, and a ball-shaped valve body housed in a valve chamber on the bottom surface thereof, The essential part is rotatably attached to the center of curvature of the arc-shaped peripheral wall, a bottom hole is provided in the bottom surface of the valve chamber where the ball-shaped valve element falls, and the position of the valve chamber is adjusted by the box-shaped valve element by the washing water. 2. The method according to claim 1, wherein when the discharge port is opened, the bottom hole is set at a position corresponding to the sewage discharge port, and the sewage discharge port is closed by a ball-shaped valve body that has fallen into the bottom hole. A dishwasher pump as described.
吐出口及びこれらの両吐出口に共通の吸込み口を備え、
モータの正転・逆転に応じて上記洗浄水吐出口又は汚水
吐出口から圧力差のある水を排出する食器洗い機用ポン
プにおいて、上記洗浄水吐出口と汚水吐出口にそれぞれ
接続された補助ケーシングの内部を隔壁により洗浄水室
と汚水室に区画し、上記隔壁を上記洗浄水室と汚水室と
の圧力差で変形する可変形部材により形成し、上記洗浄
水室に上記洗浄水吐出口に通じた洗浄水入口と洗浄水出
口を設け、上記汚水室に上記汚水吐出口に通じた汚水入
口と汚水出口とを設け、上記の洗浄水出口と汚水出口と
を上記隔壁の両側で対向して設け、上記隔壁の圧力差に
よる変形により、該洗浄水出口と汚水出口のいずれか一
方を閉止するようにしたことを特徴とする食器洗い機用
ポンプ。6. A pump casing having a washing water discharge port, a sewage discharge port, and a common suction port for both of these discharge ports,
In a dishwasher pump for discharging water having a pressure difference from the washing water discharge port or the sewage discharge port in accordance with the forward or reverse rotation of the motor, the auxiliary casing connected to the wash water discharge port and the sewage discharge port, respectively. The inside is divided into a washing water chamber and a sewage chamber by a partition, and the partition is formed by a deformable member deformed by a pressure difference between the washing water chamber and the sewage chamber, and the washing water chamber is connected to the washing water discharge port. Provide a washing water inlet and a washing water outlet, provide a sewage inlet and a sewage outlet that communicate with the sewage discharge port in the sewage chamber, and provide the rinsing water outlet and the sewage outlet opposite to each other on both sides of the partition wall. A dishwasher pump, wherein one of the washing water outlet and the sewage outlet is closed by deformation of the partition wall due to a pressure difference.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20388296A JP3338297B2 (en) | 1996-08-01 | 1996-08-01 | Dishwasher pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20388296A JP3338297B2 (en) | 1996-08-01 | 1996-08-01 | Dishwasher pump |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1043121A true JPH1043121A (en) | 1998-02-17 |
JP3338297B2 JP3338297B2 (en) | 2002-10-28 |
Family
ID=16481291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20388296A Expired - Fee Related JP3338297B2 (en) | 1996-08-01 | 1996-08-01 | Dishwasher pump |
Country Status (1)
Country | Link |
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JP (1) | JP3338297B2 (en) |
Cited By (11)
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KR100457589B1 (en) * | 2002-11-28 | 2004-11-17 | 엘지전자 주식회사 | A dish washer |
KR100457594B1 (en) * | 2003-01-06 | 2004-11-17 | 엘지전자 주식회사 | Dish washer |
JP2006177329A (en) * | 2004-12-24 | 2006-07-06 | Asahi Kogyo Kk | Pump |
KR100702206B1 (en) | 2006-09-14 | 2007-04-03 | 이강길 | Drainage apparatus for a dish washer |
CN100413448C (en) * | 2003-09-28 | 2008-08-27 | 乐金电子(天津)电器有限公司 | Mechanism for switching flow path of wash water in dishwasher |
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JP2009275639A (en) * | 2008-05-15 | 2009-11-26 | Nidec Shibaura Corp | Pump |
JP2012090838A (en) * | 2010-10-28 | 2012-05-17 | Harman Co Ltd | Dish washing and drying machine |
CN104500453A (en) * | 2014-12-19 | 2015-04-08 | 杭州信多达电器有限公司 | Water pump structure of dish washing machine |
CN106050681A (en) * | 2016-08-02 | 2016-10-26 | 台州凌霄泵业有限公司 | Water pump with double water outlets |
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-
1996
- 1996-08-01 JP JP20388296A patent/JP3338297B2/en not_active Expired - Fee Related
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100457589B1 (en) * | 2002-11-28 | 2004-11-17 | 엘지전자 주식회사 | A dish washer |
KR100457594B1 (en) * | 2003-01-06 | 2004-11-17 | 엘지전자 주식회사 | Dish washer |
CN100413448C (en) * | 2003-09-28 | 2008-08-27 | 乐金电子(天津)电器有限公司 | Mechanism for switching flow path of wash water in dishwasher |
CN100431464C (en) * | 2004-11-26 | 2008-11-12 | 乐金电子(天津)电器有限公司 | Flow path water leakage proofing structure of bowl washer |
JP2006177329A (en) * | 2004-12-24 | 2006-07-06 | Asahi Kogyo Kk | Pump |
KR100702206B1 (en) | 2006-09-14 | 2007-04-03 | 이강길 | Drainage apparatus for a dish washer |
JP2009275639A (en) * | 2008-05-15 | 2009-11-26 | Nidec Shibaura Corp | Pump |
JP2012090838A (en) * | 2010-10-28 | 2012-05-17 | Harman Co Ltd | Dish washing and drying machine |
CN104500453A (en) * | 2014-12-19 | 2015-04-08 | 杭州信多达电器有限公司 | Water pump structure of dish washing machine |
CN106050681A (en) * | 2016-08-02 | 2016-10-26 | 台州凌霄泵业有限公司 | Water pump with double water outlets |
EP3540233A1 (en) * | 2018-03-13 | 2019-09-18 | Grundfos Holding A/S | Centrifugal pump assembly with rotatable valve |
WO2019175133A1 (en) * | 2018-03-13 | 2019-09-19 | Grundfos Holding A/S | Centrifugal pump assembly |
US11460031B2 (en) | 2018-03-13 | 2022-10-04 | Grundfos Holding A/S | Centrifugal pump assembly |
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