JP2014140527A - Oral cavity washer - Google Patents

Oral cavity washer Download PDF

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JP2014140527A
JP2014140527A JP2013011169A JP2013011169A JP2014140527A JP 2014140527 A JP2014140527 A JP 2014140527A JP 2013011169 A JP2013011169 A JP 2013011169A JP 2013011169 A JP2013011169 A JP 2013011169A JP 2014140527 A JP2014140527 A JP 2014140527A
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water stop
liquid
stop piece
inflow
pipe
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Masahito Nagayama
正仁 永山
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To provide an oral cavity washer in which the usage direction is hardly limited, a washing liquid can be jetted effectively and the washing liquid hardly remains in a liquid storage part.SOLUTION: An oral cavity washer includes: a liquid storage part for storing a liquid for washing an oral cavity; a liquid supply mechanism for sending out the liquid from the liquid storage part to the oral cavity; and a guide mechanism for guiding the liquid flowing from the liquid storage part to the liquid supply mechanism. The guide mechanism includes: a first inflow part in which a first inflow port where the liquid flows in is formed; and a second inflow part in which a second inflow port where the liquid flows in is formed. When the liquid storage part is below the liquid supply mechanism, the second inflow port is located below the first inflow port.

Description

本発明は、口腔洗浄器に関する。   The present invention relates to an oral cleaner.

従来、洗浄液を口腔内に噴射する口腔洗浄器が知られている。使用者は、口腔洗浄器を用いて、歯間や歯頸部の洗浄、歯茎の刺激を行い得る。口腔洗浄器としては、設置型の口腔洗浄器（特許文献１参照）や、手持ち型の口腔洗浄器が知られている（特許文献２、３参照）。手持ち型の口腔洗浄器は、設置型の口腔洗浄器と比べて、設置場所が限定されず、かつ、小型化され得る。   2. Description of the Related Art Conventionally, an oral cleaning device that jets cleaning liquid into the oral cavity is known. The user can clean the interdental and cervical regions and stimulate the gums using the mouth washer. As the mouth washer, an installation type mouth washer (see Patent Document 1) and a hand-held mouth washer are known (see Patent Documents 2 and 3). The hand-held mouth washer is not limited to the place of installation and can be miniaturized compared to the place-type mouth washer.

図３２は、従来の手持ち型の口腔洗浄器１の部分断面図である。図３２を参照して、従来の手持ち型の口腔洗浄器の全体構成が説明される。口腔洗浄器１は、本体部２と貯液タンク３とノズル４とを備える。貯液タンク３には、洗浄液５が溜められる。本体部２は、パイプ６とポンプ（図示せず）とを備える。パイプ６は、先端に洗浄液５が流入する流入口６１を備える。パイプ６の先端は、洗浄液５に浸漬される。ポンプは、スイッチ７により駆動される。駆動されたポンプは、パイプ６内に吸引力を発生させて流入口６１から洗浄液５を吸引し、ノズル４から噴射させる。パイプ６の長さは、たとえば流入口６１が貯液タンク３の内底部３１に近接する位置に配置されるよう調整される。   FIG. 32 is a partial cross-sectional view of a conventional hand-held mouth washer 1. With reference to FIG. 32, the whole structure of the conventional hand-held type oral washer will be described. The oral cleaner 1 includes a main body 2, a liquid storage tank 3, and a nozzle 4. A cleaning liquid 5 is stored in the liquid storage tank 3. The main body 2 includes a pipe 6 and a pump (not shown). The pipe 6 includes an inlet 61 through which the cleaning liquid 5 flows at the tip. The tip of the pipe 6 is immersed in the cleaning liquid 5. The pump is driven by a switch 7. The driven pump generates a suction force in the pipe 6, sucks the cleaning liquid 5 from the inlet 61, and jets it from the nozzle 4. The length of the pipe 6 is adjusted so that, for example, the inlet 61 is disposed at a position close to the inner bottom 31 of the liquid storage tank 3.

図３３〜図３５は、使用時における口腔洗浄器１の向きを説明する概略図である。図３３によれば、使用者は、貯液タンク３よりも本体部２が上になるように口腔洗浄器１を把持して使用する。この状態で口腔洗浄器が使用される場合、使用者は、たとえば上顎の歯列を洗浄し得る。図３４および図３５によれば、使用者は、貯液タンク３よりも本体部２が下になるように口腔洗浄器１を把持して使用する。図３４によれば、使用者は、たとえば自身の下顎の歯列を洗浄し得る。図３５によれば、使用者（たとえば歯科医）は、他者（たとえば患者）の下顎の歯列を確認しながら洗浄し得る。   33 to 35 are schematic views for explaining the orientation of the oral cleaner 1 during use. According to FIG. 33, the user grips and uses the mouth washer 1 so that the main body 2 is above the liquid storage tank 3. When the mouth washer is used in this state, the user can clean the maxillary dentition, for example. According to FIGS. 34 and 35, the user grips and uses the oral cleaner 1 so that the main body 2 is below the liquid storage tank 3. According to FIG. 34, the user can clean his lower jaw dentition, for example. According to FIG. 35, the user (for example, a dentist) can perform cleaning while checking the dentition of the lower jaw of another person (for example, the patient).

特許第１１９５５３０号公報Japanese Patent No. 1195530 特公平７−２８８８１号公報Japanese Patent Publication No. 7-28881 特開昭５９−２３０５５０号公報JP 59-230550 A

口腔洗浄器１は、図３３に示される向きで使用される場合、パイプ６の先端が洗浄液５に浸漬されやすい。そのため、貯液タンク３内の洗浄液５が比較的少ない場合でも、洗浄液５は、ポンプにより吸引され、ノズル４から噴射されやすい。一方、口腔洗浄器１は、図３４および図３５に示される向きで使用される場合、パイプ６の先端が洗浄液５の液面から突き出やすい。この場合、洗浄液５の噴射が途切れ、流入口６１から貯液タンク３内の空気が流入される。その結果、洗浄液は、多くが貯液タンク３に残存される。すなわち、従来の口腔洗浄器は、使用する向きが制限されやすく、向きによっては洗浄液を連続的に噴射できず、多くの洗浄液を貯液部に残存させる。   When the oral cleaner 1 is used in the orientation shown in FIG. 33, the tip of the pipe 6 is easily immersed in the cleaning liquid 5. Therefore, even when the cleaning liquid 5 in the liquid storage tank 3 is relatively small, the cleaning liquid 5 is easily sucked by the pump and ejected from the nozzle 4. On the other hand, when the mouth washer 1 is used in the orientation shown in FIGS. 34 and 35, the tip of the pipe 6 tends to protrude from the surface of the cleaning liquid 5. In this case, the injection of the cleaning liquid 5 is interrupted, and the air in the liquid storage tank 3 flows from the inlet 61. As a result, most of the cleaning liquid remains in the liquid storage tank 3. That is, in the conventional oral cleaner, the direction of use is easily limited, and depending on the direction, the cleaning liquid cannot be continuously ejected, and a large amount of the cleaning liquid remains in the liquid storage part.

本発明は、このような従来の問題に鑑みてなされたものであり、使用する向きが制限されにくく、洗浄液を有効に噴射でき、貯液部に洗浄液が残存しにくい口腔洗浄器を提供することを目的とする。   The present invention has been made in view of such conventional problems, and provides an oral cleaning device in which the direction of use is not easily restricted, the cleaning liquid can be effectively sprayed, and the cleaning liquid does not remain in the liquid storage part. With the goal.

上記課題を解決する本発明の一局面の口腔洗浄器は、口腔内を洗浄するための液体を溜める貯液部と、該貯液部から前記口腔内へ前記液体を送り出す給液機構と、前記貯液部から前記給液機構へ流れる前記液体を案内する案内機構と、を備え、前記案内機構は、前記液体が流入する第１流入口が形成された第１流入部と、前記液体が流入する第２流入口が形成された第２流入部と、を含み、前記貯液部が前記給液機構の下方にあるとき、前記第２流入口は、前記第１流入口より下方に位置することを特徴とする。   The mouth washer of one aspect of the present invention that solves the above problems is a liquid storage part that stores liquid for cleaning the oral cavity, a liquid supply mechanism that sends the liquid from the liquid storage part into the oral cavity, and A guide mechanism that guides the liquid flowing from the liquid storage portion to the liquid supply mechanism, wherein the guide mechanism includes a first inflow portion in which a first inflow port through which the liquid flows is formed, and the liquid flows in A second inflow portion formed with a second inflow port, and when the liquid storage portion is below the liquid supply mechanism, the second inflow port is located below the first inflow port. It is characterized by that.

上記構成によれば、貯留部が給液機構の下方にあるとき、第２流入口が第１流入口より下方に位置する。そのため、液体は、第２流入口から流入されやすい。一方、貯留部が給液機構の上方にあるとき、第２流入口が第１流入口より上方に位置する。そのため、液体は、第１流入口から流入されやすい。したがって、口腔洗浄器を使用する向きは、制限されない。また、口腔洗浄器を使用する向きが使用途中で変更された場合であっても、洗浄液は、中断されずに吐出され得る。その結果、使用者は、洗浄液を有効に噴射でき、洗浄液は貯液部に残存しにくい。   According to the above configuration, the second inlet is located below the first inlet when the reservoir is below the liquid supply mechanism. Therefore, the liquid is likely to flow from the second inlet. On the other hand, when the reservoir is above the liquid supply mechanism, the second inlet is located above the first inlet. Therefore, the liquid is likely to flow from the first inflow port. Therefore, the direction in which the mouth washer is used is not limited. Moreover, even if the direction in which the mouth washer is used is changed during use, the cleaning liquid can be discharged without interruption. As a result, the user can effectively eject the cleaning liquid, and the cleaning liquid hardly remains in the liquid storage part.

上記構成において、前記第１流入部は、前記液体の流入を許容する開位置と、前記液体の流入を抑制する閉位置と、の間で変位する第１止水コマを有する第１制御部を含み、前記第２流入部は、前記液体の流入を許容する開位置と、前記液体の流入を抑制する閉位置と、の間で変位する第２止水コマを有する第２制御部を含み、前記第１止水コマおよび前記第２止水コマは、前記貯液部と前記給液機構との間の位置関係に応じて、前記開位置と前記閉位置との間で変位してもよい。   In the above configuration, the first inflow portion includes a first control unit having a first water stop piece that is displaced between an open position that allows the liquid to flow in and a closed position that suppresses the liquid inflow. The second inflow part includes a second control unit having a second water stop piece that is displaced between an open position that allows the liquid to flow in and a closed position that suppresses the inflow of the liquid; The first water stop piece and the second water stop piece may be displaced between the open position and the closed position according to a positional relationship between the liquid storage unit and the liquid supply mechanism. .

上記構成によれば、第１止水コマおよび第２止水コマは、貯液部と給液機構との間の位置関係に応じて、開位置と閉位置との間で変位する。そのため、第１流入口または第２流入口より流入する液体は、第１止水コマおよび第２止水コマにより、給液機構への案内が制御され得る。また、第１止水コマと第２止水コマとの変位によってのみ、給液機構への洗浄液の案内が制御されている。このため、別途の開閉機構（たとえば電磁弁）を流入口に設けて流入口の開閉を電気的に制御する必要がない。その結果、省電力効率、コスト面および省スペース性が、向上され得る。   According to the said structure, a 1st water stop piece and a 2nd water stop piece are displaced between an open position and a closed position according to the positional relationship between a liquid storage part and a liquid supply mechanism. Therefore, the liquid flowing in from the first inlet or the second inlet can be guided to the liquid supply mechanism by the first water stop piece and the second water stop piece. Further, the guide of the cleaning liquid to the liquid supply mechanism is controlled only by the displacement of the first water stop piece and the second water stop piece. For this reason, it is not necessary to provide a separate opening / closing mechanism (for example, a solenoid valve) at the inlet to electrically control the opening / closing of the inlet. As a result, power saving efficiency, cost, and space saving can be improved.

上記構成において、前記第１止水コマおよび前記第２止水コマのうち一方が、前記開位置に存する間、前記第１止水コマおよび前記第２止水コマのうち他方は、前記閉位置に存してもよい。   In the above configuration, while one of the first water stop piece and the second water stop piece is in the open position, the other of the first water stop piece and the second water stop piece is in the closed position. It may exist.

上記構成によれば、第１止水コマが開位置に存する間、第２止水コマは閉位置に存する。一方、第２止水コマが閉位置に存する間、第１止水コマは開位置に存する。そのため、液体は、第１制御部または第２制御部のいずれかにより給液機構に案内され得る。   According to the said structure, while a 1st water stop piece exists in an open position, a 2nd water stop piece exists in a closed position. On the other hand, while the second water stop piece is in the closed position, the first water stop piece is in the open position. Therefore, the liquid can be guided to the liquid supply mechanism by either the first control unit or the second control unit.

上記構成において、前記貯液部が前記給液機構の下方にあるとき、前記第２止水コマは、前記開位置に存し、前記貯液部が前記給液機構の上方にあるとき、前記第２止水コマは、前記閉位置に存してもよい。   In the above configuration, when the liquid storage part is below the liquid supply mechanism, the second water stop piece is in the open position, and when the liquid storage part is above the liquid supply mechanism, The second water stop piece may be in the closed position.

上記構成によれば、貯液部が給液機構の下方にあるとき、第２止水コマは開位置に存し、第１止水コマは閉位置に存する。この場合、液体は、第２流入部のみを介して給液機構に案内される。また、仮に第１流入口が液面よりも上方にある場合でも、第１流入口から空気が流入しにくい。一方、貯液部が給液機構の上方にあるとき、第２止水コマは閉位置に存し、第１止水コマは開位置に存する。この場合、液体は、第１流入部のみを介して給液機構に案内される。また、仮に第２流入口が液面よりも上方にある場合でも、第２流入口から空気が流入しにくい。そのため、案内機構は、口腔洗浄器が使用される向きによらず、液体を給液機構に適切に案内し得る。   According to the said structure, when a liquid storage part exists in the downward direction of a liquid supply mechanism, a 2nd water stop piece exists in an open position, and a 1st water stop piece exists in a closed position. In this case, the liquid is guided to the liquid supply mechanism only through the second inflow portion. Moreover, even if the first inlet is above the liquid level, it is difficult for air to flow from the first inlet. On the other hand, when the liquid storage part is above the liquid supply mechanism, the second water stop piece is in the closed position and the first water stop piece is in the open position. In this case, the liquid is guided to the liquid supply mechanism only through the first inflow portion. Further, even when the second inlet is above the liquid level, it is difficult for air to flow from the second inlet. Therefore, the guide mechanism can appropriately guide the liquid to the liquid supply mechanism regardless of the direction in which the mouth washer is used.

上記構成において、前記第１制御部は、前記給液機構への前記液体の流入を許容する第１接続管部を含む第１収容管片を含み、前記第２制御部は、前記給液機構への前記液体の流入を許容する第２接続管部を含む第２収容管片を含み、前記第１止水コマは、前記第１収容管片に収容され、前記第２止水コマは、前記第２収容管片に収容され、前記貯液部が前記給液機構の下方にあるとき、前記第１止水コマは前記第１接続管部を閉じる一方で、前記第２止水コマは前記第２接続管部を開き、前記貯液部が前記給液機構の上方にあるとき、前記第１止水コマは前記第１接続管部を開く一方で、前記第２止水コマは前記第２接続管部を閉じてもよい。   In the above configuration, the first control unit includes a first storage tube piece including a first connection pipe unit that allows the liquid to flow into the liquid supply mechanism, and the second control unit includes the liquid supply mechanism. Including a second connecting pipe piece including a second connecting pipe portion that allows the liquid to flow into the first water stop piece, the first water stop piece being housed in the first storage pipe piece, and the second water stop piece being When accommodated in the second accommodating pipe piece and the liquid storage part is below the liquid supply mechanism, the first water stop piece closes the first connection pipe part, while the second water stop piece is When the second connection pipe part is opened and the liquid storage part is above the liquid supply mechanism, the first water stop piece opens the first connection pipe part, while the second water stop piece is the You may close a 2nd connection pipe part.

上記構成によれば、貯液部が給液機構の下方にあるとき、第１止水コマは第１接続管部を閉じる一方で、第２止水コマは第２接続管部を開く。一方、貯液部が給液機構の上方にあるとき、第１止水コマは第１接続管部を開く一方で、第２止水コマは第２接続管部を閉じる。そのため、液体は、第１止水コマおよび第２止水コマの動作によってのみ、給液機構への案内が制御され得る。その結果、省電力効率、コスト面および省スペース性が、向上され得る。   According to the above configuration, when the liquid storage part is below the liquid supply mechanism, the first water stop piece closes the first connection pipe part, while the second water stop piece opens the second connection pipe part. On the other hand, when the liquid storage part is above the liquid supply mechanism, the first water stop piece opens the first connection pipe part, while the second water stop piece closes the second connection pipe part. Therefore, the liquid can be guided to the liquid supply mechanism only by the operations of the first water stop piece and the second water stop piece. As a result, power saving efficiency, cost, and space saving can be improved.

上記構成において、前記第１流入部は、前記第１流入口が形成された第１流入端を有する第１管を含み、前記第２流入部は、前記第２流入口が形成された第２流入端を有する第２管を含み、前記第１制御部は、前記第１流入端に接続され、前記第２制御部は、前記第２流入端に接続されてもよい。   In the above configuration, the first inflow portion includes a first pipe having a first inflow end in which the first inflow port is formed, and the second inflow portion is a second in which the second inflow port is formed. The second control unit may include a second pipe having an inflow end, the first control unit may be connected to the first inflow end, and the second control unit may be connected to the second inflow end.

上記構成によれば、第１制御部は第１流入端に接続され、第２制御部は第２流入端に接続される、との簡便な構成が採用される。そのため、コスト面やメンテナンス性は、さらに向上され得る。   According to the above configuration, a simple configuration is adopted in which the first control unit is connected to the first inflow end and the second control unit is connected to the second inflow end. For this reason, cost and maintenance can be further improved.

上記構成において、前記第１流入部は、前記第１流入口が形成された第１流入端を有する第１管を含み、前記第２流入部は、前記第２流入口が形成された第２流入端を有する第２管を含み、前記第１制御部は、前記第１流入端に接続され、前記第２制御部は、前記液体が前記第２流入端から前記給液機構に向けて案内される経路の途中に配置されてもよい。   In the above configuration, the first inflow portion includes a first pipe having a first inflow end in which the first inflow port is formed, and the second inflow portion is a second in which the second inflow port is formed. A second pipe having an inflow end, wherein the first control unit is connected to the first inflow end, and the second control unit guides the liquid from the second inflow end toward the liquid supply mechanism. It may be arranged in the middle of the route to be performed.

上記構成によれば、第２制御部は、液体が第２流入端から給液機構に向けて案内される経路の途中に配置される。そのため、第２管の長さや第２流入端を含む先端部分の形状は、貯液部の形状に合わせて調整され易い。その結果、貯液部の形状選択の幅が広がり得る。   According to the said structure, a 2nd control part is arrange | positioned in the middle of the path | route where a liquid is guided toward a liquid supply mechanism from a 2nd inflow end. Therefore, the length of the second tube and the shape of the tip including the second inflow end are easily adjusted according to the shape of the liquid storage part. As a result, the range of shape selection of the liquid storage part can be widened.

上記構成において、前記第１止水コマは、前記第１接続管部に挿入される第１挿入部と、該第１挿入部を取り巻くように形成された第１弾性部材と、前記第１挿入部と前記第１弾性部材とに隣接する第１基部と、を含み、前記貯液部が前記給液機構の下方にあるとき、前記第１基部は、前記第１収容管片と協働して前記第１弾性部材を圧縮し、前記第１接続管部を閉じてもよい。   In the above configuration, the first water stop piece includes a first insertion portion that is inserted into the first connection pipe portion, a first elastic member that is formed to surround the first insertion portion, and the first insertion portion. And a first base adjacent to the first elastic member, and the first base cooperates with the first accommodating tube piece when the liquid storage part is below the liquid supply mechanism. The first elastic member may be compressed to close the first connecting pipe portion.

上記構成によれば、貯液部が給液機構の下方にあるとき、第１基部は、第１収容管片と協働して第１弾性部材を圧縮し、第１接続管部を閉じる。そのため、第１止水コマが閉位置にある場合の止水性は、向上され得る。   According to the said structure, when a liquid storage part exists under the liquid supply mechanism, a 1st base cooperates with a 1st accommodating pipe piece, compresses a 1st elastic member, and closes a 1st connection pipe part. Therefore, the water stoppage when the first water stop piece is in the closed position can be improved.

上記構成において、前記第２止水コマは、前記第２接続管部に挿入される第２挿入部と、該第２挿入部を取り巻くように形成された第２弾性部材と、前記第２挿入部と前記第２弾性部材とに隣接する第２基部と、を含み、前記貯液部が前記給液機構の上方にあるとき、前記第２基部は、前記第２収容管片と協働して前記第２弾性部材を圧縮し、前記第２接続管部を閉じてもよい。   In the above configuration, the second water stop piece includes a second insertion portion that is inserted into the second connection pipe portion, a second elastic member that is formed to surround the second insertion portion, and the second insertion portion. And a second base adjacent to the second elastic member, and when the liquid reservoir is above the liquid supply mechanism, the second base cooperates with the second storage tube piece. The second elastic member may be compressed to close the second connecting pipe portion.

上記構成によれば、貯液部が給液機構の上方にあるとき、第２基部は、第２収容管片と協働して第２弾性部材を圧縮し、第２接続管部を閉じる。そのため、第２止水コマが閉位置にある場合の止水性は、向上され得る。   According to the said structure, when a liquid storage part exists above a liquid supply mechanism, a 2nd base cooperates with a 2nd accommodation pipe piece, compresses a 2nd elastic member, and closes a 2nd connection pipe part. Therefore, the water stoppage when the second water stop piece is in the closed position can be improved.

上記構成において、前記第１収容管片は、前記液体の流入方向に向けて拡がるテーパ状の流路を規定する第１テーパ壁を含み、前記貯液部が前記給液機構の下方にあるとき、前記第１基部は、前記第１テーパ壁と協働して前記第１弾性部材を圧縮し、前記第１接続管部を閉じてもよい。   In the above configuration, when the first storage tube piece includes a first taper wall that defines a tapered flow path that expands in the inflow direction of the liquid, and the liquid storage portion is below the liquid supply mechanism. The first base portion may compress the first elastic member in cooperation with the first tapered wall and close the first connecting pipe portion.

上記構成によれば、貯液部が給液機構の下方にあるとき、第１基部は、第１テーパ壁と協働して第１弾性部材を圧縮し、第１接続管部を閉じる。この場合、第１止水コマは、開位置から閉位置に変位する際に、第１基部が第１テーパ壁と接触した状態で案内され得る。そのため、たとえば開位置から閉位置へ変位する第１止水コマの姿勢が一時的に偏った場合であっても、当該姿勢は修正され得る。その結果、第１基部は、第１テーパ壁と適切に当接し、第１止水コマが閉位置に存する場合の止水性は、向上され得る。   According to the said structure, when a liquid storage part exists under the liquid supply mechanism, a 1st base cooperates with a 1st taper wall, compresses a 1st elastic member, and closes a 1st connection pipe part. In this case, when the first water stop piece is displaced from the open position to the closed position, the first base portion can be guided in a state where the first base portion is in contact with the first tapered wall. Therefore, for example, even when the posture of the first water stop piece that is displaced from the open position to the closed position is temporarily biased, the posture can be corrected. As a result, the first base portion appropriately contacts the first tapered wall, and the water stoppage when the first water stop piece is in the closed position can be improved.

上記構成において、前記第２収容管片は、前記液体の流入方向に向けて狭まるテーパ状の流路を規定する第２テーパ壁を含み、前記貯液部が前記給液機構の上方にあるとき、前記第２基部は、前記第２テーパ壁と協働して前記第２弾性部材を圧縮し、前記第２接続管部を閉じてもよい。   In the above configuration, when the second storage tube piece includes a second tapered wall that defines a tapered flow path that narrows in the liquid inflow direction, and the liquid storage part is above the liquid supply mechanism. The second base portion may compress the second elastic member in cooperation with the second tapered wall and close the second connecting pipe portion.

上記構成によれば、貯液部が給液機構の上方にあるとき、第２基部は、第２テーパ壁と協働して第２弾性部材を圧縮し、第２接続管部を閉じる。この場合、第２止水コマは、開位置から閉位置に変位する際に、第２基部が第２テーパ壁と接触した状態で案内され得る。そのため、たとえば開位置から閉位置へ変位する第２止水コマの姿勢が一時的に偏った場合であっても、当該姿勢は修正され得る。その結果、第２基部は、第２テーパ壁と適切に当接し、第２止水コマが閉位置に存する場合の止水性は、向上され得る。   According to the said structure, when a liquid storage part exists above a liquid supply mechanism, a 2nd base cooperates with a 2nd taper wall, compresses a 2nd elastic member, and closes a 2nd connection pipe part. In this case, when the second water stop piece is displaced from the open position to the closed position, the second base can be guided in a state in which the second base is in contact with the second tapered wall. Therefore, for example, even when the posture of the second water stop piece that is displaced from the open position to the closed position is temporarily biased, the posture can be corrected. As a result, the second base portion appropriately contacts the second tapered wall, and the water stoppage when the second water stop piece is in the closed position can be improved.

上記構成において、前記第１制御部は、前記第１挿入部を前記第１接続管部に挿入させる方向、または、前記第１挿入部を前記第１接続管部から抜き出す方向へ付勢する第１付勢部材を含んでもよい。   In the above configuration, the first control unit biases the first insertion part in a direction in which the first insertion part is inserted into the first connection pipe part or a direction in which the first insertion part is extracted from the first connection pipe part. One biasing member may be included.

上記構成によれば、第１付勢部材は、第１挿入部を第１接続管部に挿入させる方向、または、第１挿入部を第１接続管部から抜き出す方向へ付勢する。第１付勢部材が第１挿入部を第１接続管部に挿入させる方向に付勢する場合、第１止水コマは、開位置から閉位置へ、スムーズかつ的確に変位し得る。一方、第１付勢部材が第１挿入部を第１接続管部から抜き出す方向に付勢する場合、第１止水コマは、閉位置から開位置へ、スムーズかつ的確に変位し得る。   According to the above configuration, the first urging member urges the first insertion portion in the direction in which the first insertion portion is inserted into the first connection tube portion or the direction in which the first insertion portion is extracted from the first connection tube portion. When the first urging member urges in the direction in which the first insertion portion is inserted into the first connection pipe portion, the first water stop piece can be smoothly and accurately displaced from the open position to the closed position. On the other hand, when the first urging member urges the first insertion portion in the direction of extracting the first insertion portion from the first connecting pipe portion, the first water stop piece can be smoothly and accurately displaced from the closed position to the open position.

上記構成において、前記第２制御部は、前記第２挿入部を前記第２接続管部に挿入させる方向、または、前記第２挿入部を前記第２接続管部から抜き出す方向へ付勢する第２付勢部材を含んでもよい。   In the above configuration, the second control unit biases the second insertion part in a direction in which the second insertion part is inserted into the second connection pipe part or a direction in which the second insertion part is extracted from the second connection pipe part. Two urging members may be included.

上記構成によれば、第２付勢部材は、第２挿入部を第２接続管部に挿入させる方向、または、第２挿入部を第２接続管部から抜き出す方向へ付勢する。第２付勢部材が第２挿入部を第２接続管部に挿入させる方向に付勢する場合、第２止水コマは、開位置から閉位置へ、スムーズかつ的確に変位し得る。一方、第２付勢部材が第２挿入部を第２接続管部から抜き出す方向に付勢する場合、第２止水コマは、閉位置から開位置へ、スムーズかつ的確に変位し得る。   According to the above configuration, the second urging member urges the second insertion portion in the direction in which the second insertion portion is inserted into the second connection tube portion or the direction in which the second insertion portion is extracted from the second connection tube portion. When the second urging member urges in the direction in which the second insertion portion is inserted into the second connecting pipe portion, the second water stop piece can be smoothly and accurately displaced from the open position to the closed position. On the other hand, when the second urging member urges the second insertion portion in the direction of extracting the second insertion portion from the second connecting pipe portion, the second water stop piece can be smoothly and accurately displaced from the closed position to the open position.

本発明によれば、使用する向きが制限されにくく、洗浄液を有効に噴射でき、貯液部に洗浄液が残存しにくい口腔洗浄器が提供される。   ADVANTAGE OF THE INVENTION According to this invention, the direction which uses is hard to be restricted, a cleaning liquid can be sprayed effectively, and the oral cavity washing device which a cleaning liquid does not remain in a liquid storage part is provided.

第１の実施形態の口腔洗浄器の部分断面図である。It is a fragmentary sectional view of the mouth washer of a 1st embodiment. 第１流入口と第２流入口との位置関係を説明する部分断面図である。It is a fragmentary sectional view explaining the positional relationship of a 1st inflow port and a 2nd inflow port. 第１流入口と第２流入口との位置関係を説明する部分断面図である。It is a fragmentary sectional view explaining the positional relationship of a 1st inflow port and a 2nd inflow port. 第１自在栓の斜視図である。It is a perspective view of a 1st universal stopper. 第１自在栓のＡ−Ａ’断面図である。It is A-A 'sectional view of the 1st universal stopper. 第１自在栓のＢ−Ｂ’断面図である。It is B-B 'sectional drawing of a 1st universal stopper. 第１止水コマの斜視図である。It is a perspective view of the 1st water stop top. 閉位置にある第１止水コマの断面図である。It is sectional drawing of the 1st water stop top in a closed position. 第２自在栓の斜視図である。It is a perspective view of a 2nd free stopper. 第２自在栓のＡ−Ａ’断面図である。It is A-A 'sectional drawing of a 2nd free stopper. 第２止水コマの斜視図である。It is a perspective view of the 2nd water stop top. 閉位置にある第２止水コマの断面図である。It is sectional drawing of the 2nd water stop top in a closed position. 第１自在栓の断面図である。It is sectional drawing of a 1st universal stopper. 第１自在栓の断面図である。It is sectional drawing of a 1st universal stopper. 第１自在栓の断面図である。It is sectional drawing of a 1st universal stopper. 第２自在栓の断面図である。It is sectional drawing of a 2nd universal stopper. 第２自在栓の断面図である。It is sectional drawing of a 2nd universal stopper. 第２自在栓の断面図である。It is sectional drawing of a 2nd universal stopper. 第３の実施形態の口腔洗浄器の部分断面図である。It is a fragmentary sectional view of the mouth washer of a 3rd embodiment. 第３自在栓の斜視図である。It is a perspective view of a 3rd universal stopper. 第４の実施形態の口腔洗浄器の部分断面図である。It is a fragmentary sectional view of the mouth washer of a 4th embodiment. 第４自在栓の断面図である。It is sectional drawing of a 4th universal stopper. 第４止水コマの断面図である。It is sectional drawing of a 4th water stop top. 第４止水コマの断面図である。It is sectional drawing of a 4th water stop top. 開位置にある第４止水コマの断面図である。It is sectional drawing of the 4th water stop top in an open position. 第５自在栓の断面図である。It is sectional drawing of a 5th universal stopper. 第５止水コマの断面図である。It is sectional drawing of the 5th water stop top. 第５止水コマの断面図である。It is sectional drawing of the 5th water stop top. 閉位置にある第４自在栓の断面図である。It is sectional drawing of the 4th universal stopper in a closed position. 第３自在栓の別例を示す斜視図である。It is a perspective view which shows another example of a 3rd universal stopper. 第３流入機構の別例を示す断面図である。It is sectional drawing which shows another example of a 3rd inflow mechanism. 従来の手持ち型の口腔洗浄器の部分断面図である。It is a fragmentary sectional view of the conventional handheld oral cavity cleaner. 使用時における口腔洗浄器の向きを説明する概略図である。It is the schematic explaining the direction of the mouth washer at the time of use. 使用時における口腔洗浄器の向きを説明する概略図である。It is the schematic explaining the direction of the mouth washer at the time of use. 使用時における口腔洗浄器の向きを説明する概略図である。It is the schematic explaining the direction of the mouth washer at the time of use.

（第１の実施形態）
以下、本発明の口腔洗浄器の実施形態が、図面を参照して説明される。 (First embodiment)
Hereinafter, embodiments of the mouth washer of the present invention will be described with reference to the drawings.

＜口腔洗浄器１００の全体構成＞
図１は、本実施形態の口腔洗浄器１００の部分断面図である。図１を参照して、口腔洗浄器１００の全体構成が説明される。口腔洗浄器１００は、貯液タンク２００と吐出ノズル３００と口腔洗浄器本体４００とを含む。なお、口腔洗浄器１００における貯液タンク２００および吐出ノズル３００の位置は例示であり、特に限定されない。 <Whole structure of the mouth washer 100>
FIG. 1 is a partial cross-sectional view of an oral cleaning device 100 of the present embodiment. With reference to FIG. 1, the whole structure of the oral cavity cleaning device 100 is demonstrated. The oral cleaner 100 includes a liquid storage tank 200, a discharge nozzle 300, and an oral cleaner main body 400. In addition, the positions of the liquid storage tank 200 and the discharge nozzle 300 in the mouth washer 100 are examples and are not particularly limited.

貯液タンク２００は、口腔内を洗浄する洗浄液５００を溜めるための容器である。貯液タンク２００は、内底部２１０を有し、上端に開口が形成された有底の略楕円筒体からなる。貯液タンク２００の側面には、洗浄液５００を貯液タンク２００内に充填するための導液口２２０が形成されている。導液口２２０は、開閉自在の蓋材２３０により封止されている。導液口２２０と蓋材２３０との接触箇所には、気密性を高めるための弾性シール材２４０が設けられている。洗浄液５００としては、水道水、精製水、薬液（洗口剤、殺菌剤、液体歯磨き）が例示される。弾性シール材２４０としては、Ｏリングが例示される。貯液タンク２００の開口の近傍には、後述する口腔洗浄器本体４００と接続するための係合溝（図示せず）が形成されている。貯液タンク２００は、口腔内を洗浄するための液体を溜める貯液部として例示される。   The liquid storage tank 200 is a container for storing the cleaning liquid 500 for cleaning the oral cavity. The liquid storage tank 200 has an inner bottom portion 210 and is formed of a bottomed substantially oval cylindrical body having an opening at the upper end. On the side surface of the liquid storage tank 200, a liquid introduction port 220 for filling the liquid storage tank 200 with the cleaning liquid 500 is formed. The liquid introduction port 220 is sealed with an openable / closable lid member 230. An elastic seal material 240 is provided at a contact portion between the liquid introduction port 220 and the lid member 230 to enhance airtightness. Examples of the cleaning liquid 500 include tap water, purified water, and chemicals (a mouthwash, a bactericide, and a liquid toothpaste). An example of the elastic sealing material 240 is an O-ring. In the vicinity of the opening of the liquid storage tank 200, an engagement groove (not shown) is formed for connection to the oral cleaner main body 400 described later. The liquid storage tank 200 is exemplified as a liquid storage unit that stores a liquid for cleaning the oral cavity.

吐出ノズル３００は、口腔内に適宜進入させて使用され、洗浄液５００を所定の方向へ吐出するための器具である。吐出ノズル３００は、洗浄液５００が通過する内部通路３１０を備える管状の部材であり、洗浄液５００が吐出される吐出口が形成された吐出端３２０と、後述する口腔洗浄器本体４００のノズル接続口に接続される接続端３３０とを備える。吐出ノズル３００は、口腔洗浄器本体４００と着脱される。吐出端３２０を含む吐出ノズル３００の先端は、口腔内に進入させやすいように曲げられている。なお、吐出ノズル３００は、口腔洗浄器本体４００に固着されていてもよい。吐出ノズル３００は、たとえば射出成型された樹脂からなる。   The discharge nozzle 300 is used by appropriately entering the oral cavity, and is a device for discharging the cleaning liquid 500 in a predetermined direction. The discharge nozzle 300 is a tubular member having an internal passage 310 through which the cleaning liquid 500 passes, and is provided at a discharge end 320 formed with a discharge port through which the cleaning liquid 500 is discharged, and a nozzle connection port of the oral cleaner main body 400 described later. And a connection end 330 to be connected. The discharge nozzle 300 is attached to and detached from the oral cleaner main body 400. The tip of the discharge nozzle 300 including the discharge end 320 is bent so as to easily enter the oral cavity. Note that the discharge nozzle 300 may be fixed to the oral cleaner main body 400. The discharge nozzle 300 is made of, for example, injection molded resin.

口腔洗浄器本体４００は、貯液タンク２００より洗浄液５００を吸引し、吐出ノズル３００へ案内するための装置である。口腔洗浄器本体４００は、上面４１１と下面４１２とを有する略楕円筒状の筺体４１０を備える。筺体４１０の内部には、加圧装置４２０と、該加圧装置４２０と吐出ノズル３００とを繋ぐ連結パイプ４３０と、加圧装置４２０を駆動する電源系統４４０と、加圧装置４２０へ洗浄液５００を案内する案内系統４５０とが含まれる。上面４１１には、吐出ノズル３００の接続端を取り付けるためのノズル接続口（図示せず）が形成されている。下面４１２には、貯液タンク２００の係合溝と係合する係合突起（図示せず）が形成されている。側面４１３には、電源系統４４０を制御して加圧装置４２０を駆動するスイッチ４６０が形成されている。スイッチ４６０としては、押しボタンスイッチまたはスライドスイッチが例示される。筺体４１０は、たとえば射出成型された樹脂からなる。口腔洗浄器本体４００の形状は、使用者が把持しやすい形状であればよく、楕円筒状以外に円筒状であってもよい。また、スイッチ４６０の位置は例示であり、特に限定されない。   The oral cleaner main body 400 is a device for sucking the cleaning liquid 500 from the liquid storage tank 200 and guiding it to the discharge nozzle 300. The mouth washer main body 400 includes a substantially elliptic cylindrical casing 410 having an upper surface 411 and a lower surface 412. Inside the housing 410, the pressurizing device 420, a connecting pipe 430 that connects the pressurizing device 420 and the discharge nozzle 300, a power supply system 440 that drives the pressurizing device 420, and the cleaning liquid 500 to the pressurizing device 420. And a guidance system 450 for guidance. A nozzle connection port (not shown) for attaching a connection end of the discharge nozzle 300 is formed on the upper surface 411. An engagement protrusion (not shown) that engages with the engagement groove of the liquid storage tank 200 is formed on the lower surface 412. A switch 460 that controls the power supply system 440 to drive the pressurizing device 420 is formed on the side surface 413. The switch 460 is exemplified by a push button switch or a slide switch. The casing 410 is made of, for example, an injection molded resin. The shape of the oral cleaner main body 400 may be a shape that can be easily gripped by the user, and may be a cylindrical shape other than an elliptical cylindrical shape. Further, the position of the switch 460 is an example, and is not particularly limited.

加圧装置４２０は、貯液タンク２００から口腔内へ洗浄液５００を送り出すための装置である。加圧装置４２０には、案内系統４５０が接続される。加圧装置４２０は、案内系統４５０により案内された洗浄液５００が流入する給水口が形成された給水端４２１と、流入する洗浄液５００を加圧して搬送するポンプ部と、搬送された洗浄液５００が吐出される吐出口が形成された吐出端４２２とを備える。吐出端４２２は、連結パイプ４３０に接続される。加圧装置４２０としては、ギアポンプ、ピストンポンプが例示される。加圧装置４２０は、貯液部から口腔内へ液体を送り出す給液機構として例示される。   The pressurizing device 420 is a device for sending the cleaning liquid 500 from the liquid storage tank 200 into the oral cavity. A guide system 450 is connected to the pressure device 420. The pressurizing device 420 includes a water supply end 421 in which a water supply port into which the cleaning liquid 500 guided by the guide system 450 flows is formed, a pump unit that pressurizes and transports the flowing cleaning liquid 500, and discharges the transported cleaning liquid 500. A discharge end 422 formed with a discharge port. The discharge end 422 is connected to the connection pipe 430. Examples of the pressurizing device 420 include a gear pump and a piston pump. The pressurizing device 420 is exemplified as a liquid supply mechanism that delivers liquid from the liquid storage unit into the oral cavity.

連結パイプ４３０は、加圧装置４２０より吐出された洗浄液５００を、吐出ノズル３００へ送るための器具である。連結パイプ４３０は、洗浄液５００が通過する内部通路を備える管状の部材であり、加圧装置４２０の吐出端４２２とノズル接続口とを繋ぐ。連結パイプ４３０は、たとえば射出成型された樹脂からなる。   The connection pipe 430 is an instrument for sending the cleaning liquid 500 discharged from the pressurizing device 420 to the discharge nozzle 300. The connection pipe 430 is a tubular member having an internal passage through which the cleaning liquid 500 passes, and connects the discharge end 422 of the pressurizing device 420 and the nozzle connection port. The connection pipe 430 is made of, for example, an injection molded resin.

電源系統４４０は、加圧装置４２０を駆動するための電力を供給する。電源系統４４０は、内蔵電源４４１と電源回路４４２と駆動回路４４３とを含む。駆動回路４４３は、スイッチ４６０と電気的に接続される。内蔵電源４４１としては、蓄電池、乾電池が例示される。電源回路４４２は、内蔵電源４４１を制御する回路であり、タイマ（図示せず）と電圧電流調整器（図示せず）とを含む。駆動回路４４３は、タイマの設定や、加圧装置４２０の駆動信号または停止信号を生成する。スイッチ４６０は、駆動回路４４３のオンおよびオフを切り替える。スイッチ４６０により駆動回路４４３が駆動される場合（スイッチオン）、駆動回路４４３は、内蔵電源４４１からの電力の供給を許容し、加圧装置４２０の駆動信号を生成する。その後、駆動回路４４３は、駆動信号を加圧装置４２０へ送信し、加圧装置４２０を駆動する。一方、スイッチ４６０により駆動回路４４３の駆動が解除される場合（スイッチオフ）、駆動回路４４３は、内蔵電源４４１からの電力の供給を遮断して、ポンプを停止させる。なお、内蔵電源４４１は必須ではない。この場合、駆動回路４４３は、外部電源（図示せず）から電力の供給を受けてもよい。   The power supply system 440 supplies power for driving the pressure device 420. The power supply system 440 includes a built-in power supply 441, a power supply circuit 442, and a drive circuit 443. Drive circuit 443 is electrically connected to switch 460. Examples of the built-in power supply 441 include a storage battery and a dry battery. The power supply circuit 442 is a circuit that controls the built-in power supply 441 and includes a timer (not shown) and a voltage / current regulator (not shown). The driving circuit 443 generates a timer setting and a driving signal or a stop signal for the pressure device 420. Switch 460 switches drive circuit 443 on and off. When the drive circuit 443 is driven by the switch 460 (switch-on), the drive circuit 443 allows supply of power from the built-in power supply 441 and generates a drive signal for the pressure device 420. Thereafter, the drive circuit 443 transmits a drive signal to the pressure device 420 to drive the pressure device 420. On the other hand, when the drive of the drive circuit 443 is released by the switch 460 (switch off), the drive circuit 443 cuts off the supply of power from the built-in power supply 441 and stops the pump. The built-in power supply 441 is not essential. In this case, the drive circuit 443 may receive power from an external power supply (not shown).

案内系統４５０は、貯液タンク２００に溜められた洗浄液５００を加圧装置４２０へ案内する。案内系統４５０は、第１流入機構４５１と第２流入機構４５２とを含む。第１流入機構４５１は、第１パイプ６００と第１自在栓７００とを含む。第２流入機構４５２は、第２パイプ８００と第２自在栓９００とを含む。案内系統４５０は、貯液部から給液機構へ流れる液体を案内する案内機構として例示される。第１流入機構４５１は、液体が流入する第１流入口が形成された第１流入部として例示される。第２流入機構４５２は、液体が流入する第２流入口が形成された第２流入部として例示される。   The guide system 450 guides the cleaning liquid 500 stored in the liquid storage tank 200 to the pressurizing device 420. The guide system 450 includes a first inflow mechanism 451 and a second inflow mechanism 452. The first inflow mechanism 451 includes a first pipe 600 and a first universal plug 700. The second inflow mechanism 452 includes a second pipe 800 and a second universal plug 900. The guide system 450 is exemplified as a guide mechanism that guides the liquid flowing from the liquid storage unit to the liquid supply mechanism. The first inflow mechanism 451 is exemplified as a first inflow portion in which a first inflow port into which a liquid flows is formed. The second inflow mechanism 452 is exemplified as a second inflow portion in which a second inflow port into which a liquid flows is formed.

第１パイプ６００は、内部に洗浄液５００が通過する通路が設けられた管状部材であり、洗浄液５００が流入する第１流入口が形成された第１流入端６１０を備える。第１自在栓７００は、第１流入端６１０に接続される。第１自在栓７００の詳細および第１自在栓７００と第１流入端６１０との接続形態については後述される。第１パイプ６００は、第１流入口が形成された第１流入端を有する第１管として例示される。第１自在栓７００は、第１流入端に接続される第１制御部として例示される。   The first pipe 600 is a tubular member provided with a passage through which the cleaning liquid 500 passes, and includes a first inflow end 610 in which a first inflow port through which the cleaning liquid 500 flows is formed. The first universal plug 700 is connected to the first inflow end 610. Details of the first universal plug 700 and a connection form between the first universal plug 700 and the first inflow end 610 will be described later. The 1st pipe 600 is illustrated as a 1st pipe | tube which has the 1st inflow end in which the 1st inflow port was formed. The first universal plug 700 is exemplified as a first control unit connected to the first inflow end.

第２パイプ８００は、内部に洗浄液５００が通過する通路が設けられた管状部材であり、洗浄液５００が流入する第２流入口が形成された第２流入端８１０を備える。第２自在栓９００は、第２流入端８１０に接続される。第２自在栓９００の詳細および第２自在栓９００と第２流入端８１０との接続形態については後述される。第２パイプ８００は、第２流入口が形成された第２流入端を有する第２管として例示される。第２自在栓９００は、第２流入端に接続される第２制御部として例示される。   The second pipe 800 is a tubular member provided with a passage through which the cleaning liquid 500 passes, and includes a second inflow end 810 in which a second inflow port through which the cleaning liquid 500 flows is formed. The second universal plug 900 is connected to the second inflow end 810. Details of the second universal plug 900 and the connection form between the second universal plug 900 and the second inflow end 810 will be described later. The second pipe 800 is exemplified as a second pipe having a second inflow end formed with a second inflow port. The second universal plug 900 is exemplified as a second control unit connected to the second inflow end.

第１パイプ６００は、第１流入端６１０を含む一部が筺体４１０の下面４１２から外部に突出し、残る一部が筺体４１０内に配置されている。第２パイプ８００は、第２流入端８１０を含む一部が筺体４１０の下面４１２から外部に突出し、残る一部が筺体４１０内に配置されている。口腔洗浄器本体４００と貯液タンク２００とが接続される場合、筺体４１０の下面４１２から外部に突出した第１パイプ６００の一部と第２パイプ８００の一部とは、貯液タンク２００内に配置される。一方、筺体４１０内に配置された第１パイプ６００の一部と第２パイプ８００の一部とは、合流して１つの合流パイプ４５３を形成する。合流パイプ４５３は、加圧装置４２０の給水端４２１に接続される。なお、給水端が複数設けられた加圧装置を用いる場合、筺体４１０内に配置された第１パイプ６００の一部と第２パイプ８００の一部とは、それぞれ別々の給水端と接続され得る。そのため、合流パイプは必須ではない。   Part of the first pipe 600 including the first inflow end 610 protrudes from the lower surface 412 of the casing 410 to the outside, and the remaining part is disposed in the casing 410. A part of the second pipe 800 including the second inflow end 810 protrudes from the lower surface 412 of the casing 410 to the outside, and the remaining part is disposed in the casing 410. When the mouth washer main body 400 and the liquid storage tank 200 are connected, a part of the first pipe 600 and a part of the second pipe 800 protruding outside from the lower surface 412 of the housing 410 are inside the liquid storage tank 200. Placed in. On the other hand, a part of the first pipe 600 and a part of the second pipe 800 arranged in the housing 410 join together to form one joining pipe 453. The merge pipe 453 is connected to the water supply end 421 of the pressurizing device 420. In addition, when using the pressurization apparatus provided with two or more water supply ends, a part of 1st pipe 600 arrange | positioned in the housing 410 and a part of 2nd pipe 800 can each be connected with a separate water supply end. . Therefore, a merging pipe is not essential.

図２および図３は、第１流入口と第２流入口との位置関係を説明する部分断面図である。図２および図３を参照して、第１流入口と第２流入口との位置関係が説明される。図２に示されるように、貯液タンク２００が加圧装置４２０の下方にある場合、第２流入端８１０に形成される第２流入口は、第１流入端６１０に形成される第１流入口よりも下方に位置する。この状態において加圧装置４２０を駆動させる場合、洗浄液５００は、第２流入口から流入されやすい。一方、図３に示されるように、貯液タンク２００が加圧装置４２０の上方にある場合、第２流入端８１０に形成される第２流入口は、第１流入端６１０に形成される第１流入口よりも上方に位置する。この状態において加圧装置４２０を駆動させる場合、洗浄液５００は、第１流入口から流入されやすい。すなわち、洗浄液５００は、口腔洗浄器１００の向きに制限されず、第１流入口または第２流入口のいずれかより加圧装置４２０に案内され得る。   2 and 3 are partial cross-sectional views illustrating the positional relationship between the first inlet and the second inlet. The positional relationship between the first inlet and the second inlet will be described with reference to FIGS. 2 and 3. As shown in FIG. 2, when the liquid storage tank 200 is below the pressurizing device 420, the second inlet formed at the second inflow end 810 is the first flow formed at the first inflow end 610. Located below the entrance. When the pressure device 420 is driven in this state, the cleaning liquid 500 is likely to flow from the second inflow port. On the other hand, as shown in FIG. 3, when the liquid storage tank 200 is above the pressurizing device 420, the second inlet formed in the second inlet end 810 is the second inlet formed in the first inlet end 610. It is located above the 1 inlet. When the pressurizing device 420 is driven in this state, the cleaning liquid 500 is likely to flow from the first inflow port. That is, the cleaning liquid 500 is not limited to the direction of the mouth washer 100, and can be guided to the pressurizing device 420 from either the first inlet or the second inlet.

＜第１自在栓７００の構成＞
図４は、第１自在栓７００の斜視図である。図５は、第１自在栓７００のＡ−Ａ’断面図である。図６は、第１自在栓７００のＢ−Ｂ’断面図である。図４〜図６を参照して、第１自在栓７００の構成が説明される。 <Configuration of first universal stopper 700>
FIG. 4 is a perspective view of the first universal stopper 700. FIG. 5 is a cross-sectional view of the first universal plug 700 taken along the line AA ′. FIG. 6 is a cross-sectional view of the first universal plug 700 taken along the line BB ′. With reference to FIGS. 4-6, the structure of the 1st universal stopper 700 is demonstrated.

第１自在栓７００は、洗浄液５００が通過する第１内部通路７１１を備える第１自在栓筺体７１０と、該第１自在栓筺体７１０に収容され、第１内部通路７１１内を変位する第１止水コマ７２０とを含む。第１内部通路７１１は、比較的径の小さい下面側小径部７１１ａと、該下面側小径部７１１ａよりも洗浄液５００の流入方向Ａ１の下流側に形成された大径部７１１ｂと、さらに洗浄液５００の流入方向Ａ１の下流側に形成された上面側小径部７１１ｃとから構成される。下面側小径部７１１ａは、給液機構への液体の流入を許容する第１接続管部として例示される。   The first universal plug 700 includes a first universal plug housing 710 having a first internal passage 711 through which the cleaning liquid 500 passes, and a first stopper that is accommodated in the first universal plug housing 710 and is displaced in the first internal passage 711. A water top 720. The first internal passage 711 includes a lower-diameter portion 711a having a relatively small diameter, a large-diameter portion 711b formed downstream of the lower-surface-side small diameter portion 711a in the inflow direction A1 of the cleaning liquid 500, and the cleaning liquid 500 It is comprised from the upper surface side small diameter part 711c formed in the downstream of the inflow direction A1. The lower surface side small-diameter portion 711a is exemplified as a first connection pipe portion that allows liquid to flow into the liquid supply mechanism.

第１自在栓筺体７１０は、上面７１２ａと下面７１２ｂとを有する略円筒状の第１自在栓本体部７１２と、第１自在栓本体部７１２の上面７１２ａに設けられ、第１パイプ６００の第１流入口６１０に挿入される第１流入口挿入部７１３とを備える。第１流入口挿入部７１３は、略円筒状であり、第１内部通路７１１の開口である第１流入口側開口部７１３ａが形成されている。なお、第１自在栓本体部７１２の下面７１２ｂには、第１流入口挿入部７１３と同形状の第２流入口挿入部９１３が設けられている。この第２流入口挿入部９１３は、第１自在栓７００を、後述する第２自在栓９００として使用する場合に、第２流入口８１０に挿入される。第１自在栓筺体７１０は、第１接続管部を含む第１収容管片として例示される。   The first universal plug housing 710 is provided on a substantially cylindrical first universal plug main body 712 having an upper surface 712a and a lower surface 712b, and an upper surface 712a of the first universal plug main body 712. A first inlet insertion portion 713 to be inserted into the inlet 610. The first inlet insertion portion 713 has a substantially cylindrical shape, and is formed with a first inlet side opening 713 a that is an opening of the first internal passage 711. A second inlet insertion portion 913 having the same shape as the first inlet insertion portion 713 is provided on the lower surface 712b of the first universal plug main body 712. The second inlet insertion portion 913 is inserted into the second inlet 810 when the first universal stopper 700 is used as a second universal stopper 900 described later. The first universal plug housing 710 is exemplified as a first accommodation tube piece including a first connection tube portion.

図５および図６に示されるように、第１自在栓筺体７１０は、第１止水コマ７２０の変位を制止する第１制止部７４０を備える。第１制止部７４０は、第１止水コマ７２０と当接する第１当接部７４１と、該第１当接部７４１を第１内部通路７１１の軸方向の中心に配置するための第１接続片７４２とを備える。それぞれの第１接続片７４２の間には、洗浄液５００の流入を許容する第１貫通孔７４３が形成されている。第１当接部７４１は、第１止水コマ７２０の下面７２１ｂと当接する凸形状の部材である。第１止水コマ７２０は、第１当接部７４１と当接することにより、後述する閉位置と開位置を変位する際に転倒が防がれる。第１接続片７４２は、第１当接部７４１の外周壁と第１自在栓筺体７１０の内周壁とを接続する。第１接続片７４２の数や配置は特に限定されない。本実施形態では、４つの第１接続片７４２を等間隔で離間した配置が例示される。   As shown in FIGS. 5 and 6, the first universal stopper housing 710 includes a first stop 740 that stops the displacement of the first water stop piece 720. The first stop portion 740 includes a first contact portion 741 that contacts the first water stop piece 720 and a first connection for disposing the first contact portion 741 at the center of the first internal passage 711 in the axial direction. A piece 742. A first through hole 743 that allows the cleaning liquid 500 to flow in is formed between the first connection pieces 742. The first contact portion 741 is a convex member that contacts the lower surface 721 b of the first water stop piece 720. The first water stop piece 720 is in contact with the first contact portion 741, so that the first water stop piece 720 is prevented from being overturned when a closed position and an open position described later are displaced. The first connection piece 742 connects the outer peripheral wall of the first contact portion 741 and the inner peripheral wall of the first universal plug housing 710. The number and arrangement of the first connection pieces 742 are not particularly limited. In the present embodiment, an arrangement in which the four first connection pieces 742 are spaced apart at equal intervals is exemplified.

＜第１止水コマ７２０の構成＞
図７は、第１止水コマ７２０の斜視図である。図７を参照して、第１止水コマ７２０の構成が説明される。第１止水コマ７２０は、上面７２１ａおよび下面７２１ｂを有する第１基部７２１と、上面の中心に突設された第１挿入部７２２と、該第１挿入部７２２を取り巻くように形成された第１弾性部材７２３とを含む。第１基部７２１は、円盤状の第１基部天板７２１ｃと、該第１基部天板７２１ｃの周縁に沿って下方へ設けられた第１基部側壁７２１ｄとを含む。第１基部天板７２１ｃの径（上面の直径）は、大径部７１１ｂの内径よりも小さく、下面側小径部７１１ａの内径よりも大きい。第１弾性部材７２３の外径は第１基部天板７２１ｃの径よりも小さく、内径は第１挿入部７２２の径よりも大きい。第１挿入部７２２の径は、下面側小径部７１１ａの内径よりも小さい。第１止水コマ７２０は、このような寸法であるため、第１内部通路７１１内を洗浄液５００の流入方向に沿って摺動し得る。第１挿入部７２２は、止水コマが後述する閉位置に変位する際に下面側小径部７１１ａに挿入される。第１弾性部材７２３は、第１基部天板７２１ｃに形成された溝（図示せず）に一部が埋め込まれている。第１止水コマ７２０は、高密度材料をたとえば切削加工して作製され得る。高密度材料としては、ステンレス鋼、真ちゅうが例示される。第１弾性部材７２３としては、ゴムやエラストマーを成型したＯリングや角リングが例示される。第１挿入部７２２は、第１接続管部に挿入される第１挿入部として例示される。第１基部７２１は、第１挿入部と第１弾性部材とに隣接する第１基部として例示される。 <Configuration of first water stop piece 720>
FIG. 7 is a perspective view of the first water stop piece 720. With reference to FIG. 7, the structure of the 1st water stop top 720 is demonstrated. The first water stop piece 720 includes a first base portion 721 having an upper surface 721a and a lower surface 721b, a first insertion portion 722 projecting from the center of the upper surface, and a first insertion portion 722 formed to surround the first insertion portion 722. 1 elastic member 723. The first base 721 includes a disc-shaped first base top plate 721c and a first base side wall 721d provided downward along the periphery of the first base top plate 721c. The diameter (upper surface diameter) of the first base top plate 721c is smaller than the inner diameter of the large diameter portion 711b and larger than the inner diameter of the lower surface side small diameter portion 711a. The outer diameter of the first elastic member 723 is smaller than the diameter of the first base top plate 721c, and the inner diameter is larger than the diameter of the first insertion portion 722. The diameter of the 1st insertion part 722 is smaller than the internal diameter of the lower surface side small diameter part 711a. Since the first water stop piece 720 has such a size, the first water stop piece 720 can slide along the inflow direction of the cleaning liquid 500 in the first internal passage 711. The first insertion portion 722 is inserted into the lower surface side small diameter portion 711a when the water stop piece is displaced to a closed position described later. The first elastic member 723 is partially embedded in a groove (not shown) formed in the first base top plate 721c. The first water stop piece 720 can be produced by cutting a high-density material, for example. Examples of the high density material include stainless steel and brass. Examples of the first elastic member 723 include an O-ring and a square ring formed by molding rubber or elastomer. The 1st insertion part 722 is illustrated as a 1st insertion part inserted in the 1st connecting pipe part. The first base 721 is exemplified as a first base adjacent to the first insertion portion and the first elastic member.

図５に戻り、閉位置にある第１止水コマ７２０が説明される。図５に示される位置にある第１止水コマ７２０は、自重により、第１基部天板７２１ｃが第１弾性部材７２３を介して第１自在栓筺体７１０の内周壁に当接される。参照符号Ａ２は、重力方向を示している。この場合、下面側小径部７１１ａによる加圧装置４２０への洗浄液５００の流入が抑制される。このときの第１止水コマ７２０の存する位置を、第１止水コマ７２０の閉位置という。   Returning to FIG. 5, the first water stop piece 720 in the closed position will be described. In the first water stop piece 720 at the position shown in FIG. 5, the first base top plate 721 c is brought into contact with the inner peripheral wall of the first universal plug housing 710 via the first elastic member 723 due to its own weight. Reference sign A2 indicates the direction of gravity. In this case, the inflow of the cleaning liquid 500 into the pressurizing device 420 by the lower surface side small diameter portion 711a is suppressed. The position where the first water stop piece 720 is present is referred to as a closed position of the first water stop piece 720.

図８は、開位置にある第１止水コマ７２０の断面図である。図８を参照して、開位置にある第１止水コマ７２０が説明される。上記した閉位置にある第１止水コマ７２０が変位して、第１基部天板７２１ｃと第１自在栓筺体７１０の内周壁との当接状態が解除される場合、下面側小径部７１１ａによる加圧装置４２０への洗浄液５００の流入が許容される。閉位置から変位した第１止水コマ７２０の存する位置を、第１止水コマ７２０の開位置という。   FIG. 8 is a cross-sectional view of the first water stop piece 720 in the open position. With reference to FIG. 8, the 1st water stop top 720 in an open position is demonstrated. When the first water stop piece 720 in the closed position described above is displaced and the contact state between the first base top plate 721c and the inner peripheral wall of the first universal plug housing 710 is released, the lower surface side small diameter portion 711a The cleaning liquid 500 is allowed to flow into the pressure device 420. A position where the first water stop piece 720 displaced from the closed position is referred to as an open position of the first water stop piece 720.

第１止水コマ７２０は、第１収容管片に収容され、貯液部が給液機構の下方にあるとき第１接続管部を閉じ、貯液部が給液機構の上方にあるとき第１接続管部を開く第１止水コマとして例示される。   The first water stop piece 720 is accommodated in the first accommodation pipe piece, and closes the first connection pipe part when the liquid storage part is below the liquid supply mechanism, and first when the liquid storage part is above the liquid supply mechanism. It is exemplified as a first water stop piece that opens one connecting pipe portion.

第１止水コマ７２０を第１自在栓筺体７１０に組み入れる方法は特に限定されない。たとえば、上面側小径部７１１ｃと第１制止部７４０とを取り外した状態の第１自在栓筺体７１０に、第１止水コマ７２０をいれ、その後、第１制止部７４０と上面側小径部７１１ｃとを第１自在栓筺体７１０に戻し、超音波ホーンを当てて超音波溶着する方法を採用することができる。この方法によれば、第１止水コマ７２０は、第１自在栓筺体７１０内に収容される。なお、第１自在栓筺体７１０と第１制止部７４０との接続箇所や、第１自在栓筺体７１０と上面側小径部７１１ｃとの接続箇所には、適宜ピンや孔を配設してもよい。これにより、組み立て時の利便性や、第１自在栓７００の堅牢性が向上し得る。   The method for incorporating the first water stop piece 720 into the first universal stopper housing 710 is not particularly limited. For example, the first water stop piece 720 is placed in the first universal stopper housing 710 with the upper surface side small diameter portion 711c and the first stop portion 740 removed, and then the first stop portion 740 and the upper surface side small diameter portion 711c Can be returned to the first universal plug housing 710, and an ultrasonic welding can be applied by applying an ultrasonic horn. According to this method, the first water stop piece 720 is accommodated in the first universal stopper housing 710. In addition, you may arrange | position a pin and a hole suitably in the connection location of the 1st universal plug housing 710 and the 1st control part 740, and the connection location of the 1st universal plug housing 710 and the upper surface side small diameter part 711c. . Thereby, the convenience at the time of an assembly and the robustness of the 1st universal stopper 700 can be improved.

＜第２自在栓９００の構成＞
図９は、第２自在栓９００の斜視図である。図１０は、第２自在栓９００のＡ−Ａ’断面図である。図９および図１０を参照して、第２自在栓９００の構成が説明される。 <Configuration of second universal stopper 900>
FIG. 9 is a perspective view of the second universal stopper 900. FIG. 10 is a cross-sectional view of the second universal stopper 900 taken along the line AA ′. With reference to FIG. 9 and FIG. 10, the configuration of the second universal stopper 900 will be described.

第２自在栓９００は、洗浄液５００が通過する第２内部通路９１１を備える第２自在栓筺体９１０と、該第２自在栓筺体９１０に収容され、第２内部通路９１１内を変位する第２止水コマ９２０とを含む。第２内部通路９１１は、比較的径の小さい下面側小径部９１１ａと、該下面側小径部９１１ａよりも洗浄液５００の流入方向Ａ１の下流側に形成された大径部９１１ｂと、さらに洗浄液５００の流入方向Ａ１の下流側に形成された上面側小径部９１１ｃとから構成される。上面側小径部９１１ｃは、給液機構への液体の流入を許容する第２接続管部として例示される。   The second universal plug 900 includes a second universal plug housing 910 having a second internal passage 911 through which the cleaning liquid 500 passes, and a second stopper that is accommodated in the second universal plug housing 910 and is displaced in the second internal passage 911. A water top 920. The second internal passage 911 includes a lower-surface-side small-diameter portion 911a having a relatively small diameter, a large-diameter portion 911b formed downstream of the lower-surface-side small-diameter portion 911a in the inflow direction A1 of the cleaning liquid 500, and the cleaning liquid 500 It is comprised from the upper surface side small diameter part 911c formed in the downstream of the inflow direction A1. The upper surface side small-diameter portion 911c is exemplified as the second connection pipe portion that allows the liquid to flow into the liquid supply mechanism.

第２自在栓筺体９１０は、上面９１２ａと下面９１２ｂとを有する略円筒状の第２自在栓本体部９１２と、第２自在栓本体部９１２の上面９１２ａに設けられ、第２パイプ８００の第２流入口８１０に挿入される第２流入口挿入部９１３とを備える。第２流入口挿入部９１３は、略円筒状であり、第２内部通路９１１の開口である第２流入口側開口部９１３ａが形成されている。なお、第２自在栓本体部９１２の下面９１２ｂには、第２流入口挿入部９１３と同形状の第１流入口挿入部７１３が設けられている。この第１流入口挿入部７１３は、第２自在栓９００を、上記した第１自在栓７００として使用する場合に、第１流入口６１０に挿入される。第２自在栓筺体９１０は、第２接続管部を含む第２収容管片として例示される。   The second universal plug housing 910 is provided on a substantially cylindrical second universal plug main body 912 having an upper surface 912 a and a lower surface 912 b, and an upper surface 912 a of the second universal plug main body 912. A second inlet insertion portion 913 that is inserted into the inlet 810. The second inlet insertion portion 913 has a substantially cylindrical shape, and a second inlet side opening 913a that is an opening of the second internal passage 911 is formed therein. A first inlet insertion portion 713 having the same shape as the second inlet insertion portion 913 is provided on the lower surface 912b of the second universal plug main body portion 912. The first inlet insertion portion 713 is inserted into the first inlet 610 when the second universal stopper 900 is used as the first universal stopper 700 described above. The second universal plug housing 910 is exemplified as a second accommodation tube piece including a second connection tube portion.

第２自在栓筺体９１０は、第２止水コマ９２０の変位を制止する第２制止部９４０を備える。第２制止部９４０は、第２止水コマ９２０と当接する第２当接部９４１と、該第２当接部９４１を第２内部通路９１１の軸方向の中心に配置するための第２接続片９４２とを備える。それぞれの第２接続片９４２の間には、洗浄液５００の流入を許容する第２貫通孔９４３が形成されている。第２当接部９４１の構成は上記した第１当接部７４１（図６参照）の構成と同様であり、第２接続片９４２の構成は上記した第１接続片７４２（図６参照）の構成と同様であるため、これらの説明は省略される。   The second universal stopper housing 910 includes a second stop portion 940 that stops the displacement of the second water stop piece 920. The second stop portion 940 includes a second contact portion 941 that contacts the second water stop piece 920 and a second connection for disposing the second contact portion 941 at the center of the second internal passage 911 in the axial direction. A piece 942. A second through hole 943 that allows the cleaning liquid 500 to flow in is formed between the second connection pieces 942. The configuration of the second contact portion 941 is the same as the configuration of the first contact portion 741 (see FIG. 6), and the configuration of the second connection piece 942 is that of the first connection piece 742 (see FIG. 6). Since it is the same as that of a structure, these description is abbreviate | omitted.

＜第２止水コマ９２０の構成＞
図１１は、第２止水コマ９２０の斜視図である。図１１を参照して、第２止水コマ９２０の構成が説明される。第２止水コマ９２０は、上面９２１ａおよび下面９２１ｂを有する第２基部９２１と、上面９２１ａの中心に突設された第２挿入部９２２と、該第２挿入部９２２を取り巻くように形成された第２弾性部材９２３とを含む。第２基部９２１は、円盤状の第２基部天板９２１ｃと、該第２基部天板９２１ｃの周縁に沿って下方へ設けられた第２基部側壁９２１ｄとを含む。第２止水コマ９２０の寸法は上記した第１止水コマ７２０の寸法であるため、説明は省略される。第２挿入部９２２は、第２止水コマ９２０が後述する閉位置に変位する際に上面側小径部９１１ｃに挿入される。第２挿入部９２２は、第２接続管部に挿入される第２挿入部として例示される。第２基部９２１は、第２挿入部と第２弾性部材９２３とに隣接する第２基部として例示される。 <Configuration of second water stop piece 920>
FIG. 11 is a perspective view of the second water stop piece 920. With reference to FIG. 11, the structure of the 2nd water stop top 920 is demonstrated. The second water stop piece 920 is formed to surround the second base portion 921 having the upper surface 921a and the lower surface 921b, the second insertion portion 922 protruding from the center of the upper surface 921a, and the second insertion portion 922. A second elastic member 923. The second base 921 includes a disk-shaped second base top plate 921c and a second base side wall 921d provided downward along the periphery of the second base top plate 921c. Since the dimension of the 2nd water stop top 920 is a dimension of the above-mentioned 1st water stop top 720, description is abbreviate | omitted. The second insertion portion 922 is inserted into the upper surface side small diameter portion 911c when the second water stop piece 920 is displaced to a closed position described later. The 2nd insertion part 922 is illustrated as a 2nd insertion part inserted in the 2nd connecting pipe part. The second base 921 is exemplified as a second base adjacent to the second insertion portion and the second elastic member 923.

図１２は、閉位置にある第２止水コマ９２０の断面図である。図１２を参照して、閉位置にある第２止水コマ９２０が説明される。図１２に示される位置にある第２止水コマ９２０は、自重により、第２基部天板９２１ｃが第２弾性部材９２３を介して第２自在栓筺体９１０の内周壁に当接される。この場合、上面側小径部９１１ｃによる加圧装置４２０への洗浄液５００の流入が抑制される。このときの第２止水コマ９２０の存する位置を、第２止水コマ９２０の閉位置という。   FIG. 12 is a cross-sectional view of the second water stop piece 920 in the closed position. With reference to FIG. 12, the 2nd water stop top 920 in a closed position is demonstrated. In the second water stop piece 920 at the position shown in FIG. 12, the second base top plate 921 c is brought into contact with the inner peripheral wall of the second universal plug housing 910 via the second elastic member 923 due to its own weight. In this case, the flow of the cleaning liquid 500 into the pressurizing device 420 by the upper surface side small diameter portion 911c is suppressed. The position where the second water stop piece 920 exists at this time is referred to as a closed position of the second water stop piece 920.

図１０に戻り、開位置にある第２止水コマ９２０が説明される。上記した閉位置にある第２止水コマ９２０が変位して、第２基部天板９２１ｃと第２自在栓筺体９１０の内周壁との当接状態が解除される場合、上面側小径部９１１ｃによる加圧装置４２０への洗浄液５００の流入が許容される。閉位置から変位した第２止水コマ９２０の存する位置を、第２止水コマ９２０の開位置という。   Returning to FIG. 10, the second water stop piece 920 in the open position will be described. When the second water stop piece 920 in the closed position described above is displaced and the contact state between the second base top plate 921c and the inner peripheral wall of the second universal stopper housing 910 is released, the upper surface side small diameter portion 911c The cleaning liquid 500 is allowed to flow into the pressure device 420. The position where the second water stop piece 920 displaced from the closed position is referred to as the open position of the second water stop piece 920.

第２止水コマ９２０は、第２収容管片に収容され、貯液部が給液機構の下方にあるとき第２接続管部を開き、貯液部が給液機構の上方にあるとき第２接続管部を閉じる第２止水コマとして例示される。   The second water stop piece 920 is accommodated in the second accommodation pipe piece, and opens the second connection pipe part when the liquid storage part is below the liquid supply mechanism, and the second water stop piece 920 when the liquid storage part is above the liquid supply mechanism. It is illustrated as a 2nd water stop top which closes 2 connection pipe parts.

第２止水コマ９２０を第２自在栓筺体９１０に組み入れる方法は、上記した第１止水コマ７２０を第１自在栓筺体７１０に組み入れる方法と同様であるため、説明は省略される。   Since the method of incorporating the second water stop piece 920 into the second universal stopper housing 910 is the same as the method of incorporating the first water stop piece 720 into the first universal stopper housing 710, description thereof is omitted.

＜第１止水コマ７２０の変位と第２止水コマ９２０の変位との協働関係＞
第１止水コマ７２０および第２止水コマ９２０は、貯液タンク２００と加圧装置４２０との位置関係に応じて、開位置と閉位置との間で変位する。具体的には、第１止水コマ７２０が開位置に存する間、第２止水コマ９２０は閉位置に存し、第１止水コマ７２０が閉位置に存する間、第２止水コマ９２０は開位置に存する。図２および図３に戻り、第１止水コマ７２０の変位と第２止水コマ９２０の変位との協働関係が説明される。 <Cooperation relationship between displacement of first water stop piece 720 and displacement of second water stop piece 920>
The first water stop piece 720 and the second water stop piece 920 are displaced between the open position and the closed position according to the positional relationship between the liquid storage tank 200 and the pressurizing device 420. Specifically, while the first water stop piece 720 is in the open position, the second water stop piece 920 is in the closed position, and while the first water stop piece 720 is in the closed position, the second water stop piece 920 is present. Is in the open position. 2 and 3, the cooperative relationship between the displacement of the first water stop piece 720 and the displacement of the second water stop piece 920 will be described.

口腔洗浄器１００の向きが図３に示される向きから図２に示される向きに変更される場合、すなわち、貯液タンク２００が加圧装置４２０の上方から下方にあるよう向きが変えられる場合、第１止水コマ７２０は、自重により洗浄液５００の流入方向の上流側（重力方向Ａ２）へ移動し、閉位置に変位する。また、第２止水コマ９２０は、自重により洗浄液５００の流入方向の上流側（重力方向Ａ２）へ移動し、開位置に変位する。変位する第２止水コマ９２０は、第２当接部９４１と当接して制止される。第２当接部９４１に当接した第２止水コマ９２０は、自重により当接状態が維持される。   When the orientation of the mouth washer 100 is changed from the orientation shown in FIG. 3 to the orientation shown in FIG. 2, that is, when the orientation is changed so that the liquid storage tank 200 is below the pressurizing device 420, The first water stop piece 720 moves to the upstream side (gravity direction A2) in the inflow direction of the cleaning liquid 500 by its own weight, and is displaced to the closed position. Further, the second water stop piece 920 moves to the upstream side in the inflow direction of the cleaning liquid 500 (gravity direction A2) by its own weight and is displaced to the open position. The displaced second water stop piece 920 comes into contact with the second contact portion 941 and is restrained. The second water stop piece 920 that is in contact with the second contact portion 941 is maintained in contact with its own weight.

口腔洗浄器１００の向きが、図２の示される向きである場合、すなわち、貯液タンク２００が加圧装置４２０の下方にある場合、第１止水コマ７２０は閉位置に存し、第２止水コマ９２０は開位置に存する。この状態において加圧装置４２０を駆動させる場合、洗浄液５００は、下面側小径部９１１ａ、大径部９１１ｂの第２制止部９４０（第２貫通孔９４３）、上面側小径部９１１ｃを通過して、第２流入口から加圧装置４２０に案内される。一方、第１流入口は、洗浄液５００の液面より上方に配置されている。そのため、洗浄液５００は、第１流入口より流入されることがない。また、第１止水コマ７２０が閉位置に存するため、空気も、第１流入口から吸引されない。   When the orientation of the mouth washer 100 is the orientation shown in FIG. 2, that is, when the liquid storage tank 200 is below the pressurizing device 420, the first water stop piece 720 is in the closed position, and the second The still water piece 920 is in the open position. When driving the pressure device 420 in this state, the cleaning liquid 500 passes through the lower surface side small diameter portion 911a, the second stop portion 940 (second through hole 943) of the large diameter portion 911b, and the upper surface side small diameter portion 911c, Guided to the pressurizing device 420 from the second inlet. On the other hand, the first inlet is disposed above the liquid level of the cleaning liquid 500. Therefore, the cleaning liquid 500 does not flow from the first inflow port. Moreover, since the 1st water stop piece 720 exists in a closed position, air is not attracted | sucked from a 1st inflow port.

一方、口腔洗浄器１００の向きが図２に示される向きから図３に示される向きに変更される場合、すなわち、貯液タンク２００が加圧装置４２０の下方から上方にあるよう向きが変えられた場合、第１止水コマ７２０は、洗浄液５００の流入方向の下流側（重力方向）へ移動し、開位置に変位する。この変位は、主に、第１止水コマ７２０の自重と、第１内部通路７１１に流入する洗浄液５００が第１止水コマ７２０に与える流体力とによって起こる。変位する第１止水コマ７２０は、第１当接部７４１と当接して制止される。第１当接部７４１に当接した第１止水コマ７２０は、自重および洗浄液５００により加えられる流体力により当接状態が維持される。また、第２止水コマ９２０は、洗浄液５００の流入方向の下流側（重力方向Ａ２）へ移動し、閉位置に変位する。   On the other hand, when the orientation of the mouth washer 100 is changed from the orientation shown in FIG. 2 to the orientation shown in FIG. 3, that is, the orientation is changed so that the liquid storage tank 200 is above the pressurizing device 420. In this case, the first water stop piece 720 moves to the downstream side (gravity direction) in the inflow direction of the cleaning liquid 500 and is displaced to the open position. This displacement is mainly caused by the weight of the first water stop piece 720 and the fluid force that the cleaning liquid 500 flowing into the first internal passage 711 applies to the first water stop piece 720. The displaced first water stop piece 720 comes into contact with the first contact portion 741 and is restrained. The first water stop piece 720 that is in contact with the first contact portion 741 is maintained in contact with its own weight and the fluid force applied by the cleaning liquid 500. Further, the second water stop piece 920 moves to the downstream side (the gravity direction A2) in the inflow direction of the cleaning liquid 500 and is displaced to the closed position.

口腔洗浄器１００の向きが、図３の示される向きである場合、すなわち、貯液タンク２００が加圧装置４２０の上方にある場合、第１止水コマ７２０は開位置に存し、第２止水コマ９２０は閉位置に存する。この状態において加圧装置４２０を駆動させる場合、洗浄液５００は、下面側小径部７１１ａ、大径部７１１ｂの第１制止部７４０（第１貫通孔７４３）、上面側小径部７１１ｃを通過して、第１流入口から加圧装置４２０に案内される。一方、第２流入口は、洗浄液５００の液面より上方に配置されている。そのため、洗浄液５００は、第２流入口より流入されることがない。また、第２止水コマ９２０が閉位置に存するため、空気も、第２流入口から吸引されない。   When the orientation of the mouth washer 100 is the orientation shown in FIG. 3, that is, when the liquid storage tank 200 is above the pressurizing device 420, the first water stop piece 720 is in the open position, and the second The still water piece 920 is in the closed position. When driving the pressurizing device 420 in this state, the cleaning liquid 500 passes through the lower surface side small diameter portion 711a, the first stop portion 740 (first through hole 743) of the large diameter portion 711b, and the upper surface side small diameter portion 711c, It is guided to the pressurizing device 420 from the first inlet. On the other hand, the second inlet is disposed above the liquid level of the cleaning liquid 500. Therefore, the cleaning liquid 500 does not flow from the second inflow port. Moreover, since the 2nd water stop top 920 exists in a closed position, air is not attracted | sucked from a 2nd inflow port.

＜第１の実施形態の口腔洗浄器１００の特有の効果＞
本実施形態の口腔洗浄器１００では、第１流入口に第１自在栓７００が接続されており、第２流入口に第２自在栓９００が接続されている（図１参照）。貯液タンク２００が加圧装置４２０の下方にある場合（図２参照）、第２流入口は、第１流入口よりも下方に位置する。この場合、第１止水コマ７２０は閉位置に存し、第２止水コマ９２０は開位置に存する。そのため、洗浄液５００は、第２流入機構４５２のみを介して加圧装置４２０に案内される。また、仮に第１流入口が洗浄液５００の液面よりも上方にある場合でも、第１流入口から空気が流入しにくい。一方、貯液タンク２００が加圧装置４２０の上方にある場合（図３参照）、第２流入口は、第１流入口よりも上方に位置する。この場合、第１止水コマ７２０は開位置に存し、第２止水コマ９２０は閉位置に存する。そのため、洗浄液５００は、第１流入機構４５１のみを介して加圧装置４２０に案内される。また、仮に第２流入口が洗浄液５００の液面よりも上方にある場合でも、第２流入口から空気が流入しにくい。そのため、案内機構は、口腔洗浄器１００が使用される向きによらず、液体を給液機構に適切に案内し得る。そのため、使用者が口腔洗浄器１００を使用する向きや持ち方を途中で変更する場合であっても、洗浄液５００は、中断されずに吐出され得る。その結果、洗浄液５００は、有効に噴射され、貯液タンク２００に残存しにくい。 <The specific effect of the mouth washer 100 of the first embodiment>
In the mouth washer 100 of the present embodiment, the first universal plug 700 is connected to the first inlet, and the second universal plug 900 is connected to the second inlet (see FIG. 1). When the liquid storage tank 200 is below the pressurizing device 420 (see FIG. 2), the second inlet is located below the first inlet. In this case, the first water stop piece 720 is in the closed position, and the second water stop piece 920 is in the open position. Therefore, the cleaning liquid 500 is guided to the pressurizing device 420 only through the second inflow mechanism 452. Further, even when the first inlet is above the liquid level of the cleaning liquid 500, it is difficult for air to flow from the first inlet. On the other hand, when the liquid storage tank 200 is above the pressurizing device 420 (see FIG. 3), the second inlet is positioned above the first inlet. In this case, the first water stop piece 720 is in the open position, and the second water stop piece 920 is in the closed position. Therefore, the cleaning liquid 500 is guided to the pressurizing device 420 only through the first inflow mechanism 451. Further, even when the second inlet is above the liquid level of the cleaning liquid 500, it is difficult for air to flow from the second inlet. Therefore, the guide mechanism can appropriately guide the liquid to the liquid supply mechanism regardless of the direction in which the mouth washer 100 is used. Therefore, even when the user changes the direction or way of holding the oral cleaner 100 halfway, the cleaning liquid 500 can be discharged without interruption. As a result, the cleaning liquid 500 is effectively sprayed and hardly remains in the liquid storage tank 200.

また、第１自在栓７００は第１流入端に接続され、第２自在栓９００は第２流入端に接続されている。そのため、第１自在栓７００と第２自在栓９００とは、容易に取り外しが可能であり、メンテナンス性が優れる。   The first universal plug 700 is connected to the first inflow end, and the second universal plug 900 is connected to the second inflow end. Therefore, the first universal plug 700 and the second universal plug 900 can be easily removed, and the maintainability is excellent.

本実施形態の口腔洗浄器１００では、第１自在栓筺体７１０に収容された第１止水コマ７２０と、第２自在栓筺体９１０に収容された第２止水コマ９２０との変位によってのみ、加圧装置４２０への洗浄液５００の案内が制御されている。そのため、別途の開閉機構（たとえば電磁弁）を流入口に設けて流入口の開閉を電気的に制御する必要がない。その結果、省電力効率、コスト面および省スペース性が、向上され得る。   In the mouth washer 100 of this embodiment, only by the displacement of the first water stop piece 720 accommodated in the first universal plug case 710 and the second water stop piece 920 accommodated in the second universal plug case 910, The guide of the cleaning liquid 500 to the pressurizing device 420 is controlled. Therefore, it is not necessary to provide a separate opening / closing mechanism (for example, a solenoid valve) at the inlet and electrically control the opening / closing of the inlet. As a result, power saving efficiency, cost, and space saving can be improved.

（第２の実施形態）
以下、本発明の口腔洗浄器の別の実施形態が、図面を参照して説明される。本実施形態の口腔洗浄器は、第１自在栓７００に代えて第１自在栓７０１を備え、第２自在栓９００に代えて第２自在栓９０１を備える以外は、第１の実施形態の口腔洗浄器１００と同様の構成であるため、重複する説明は適宜省略される。 (Second Embodiment)
Hereinafter, another embodiment of the mouth washer of the present invention will be described with reference to the drawings. The oral irrigator of the present embodiment includes the first universal plug 701 instead of the first universal plug 700, and the oral cavity of the first embodiment except that the second universal plug 901 is provided instead of the second universal plug 900. Since it is the same structure as the washing | cleaning machine 100, the overlapping description is abbreviate | omitted suitably.

図１３は、第１自在栓７０１の断面図である。図１３を参照して、第１自在栓７０１の構成が説明される。第１自在栓７０１は、第１テーパ壁７３０をさらに備える以外は、第１自在栓７００と同様の構成であるため、重複する説明は省略される。第１テーパ壁７３０は、下面側小径部７１１ａと大径部７１１ｂとの接続部位において、洗浄液５００の流入方向Ａ１に向けて拡がるテーパ状の流路を規定する。第１テーパ壁７３０は、液体の流入方向に向けて拡がるテーパ状の流路を規定する第１テーパ壁として例示される。   FIG. 13 is a cross-sectional view of the first universal plug 701. With reference to FIG. 13, the structure of the 1st universal stopper 701 is demonstrated. The first universal plug 701 has the same configuration as the first universal plug 700 except that the first universal plug 701 further includes a first tapered wall 730, and thus a duplicate description is omitted. The first tapered wall 730 defines a tapered flow path that expands in the inflow direction A1 of the cleaning liquid 500 at a connection portion between the lower surface side small diameter portion 711a and the large diameter portion 711b. The first taper wall 730 is exemplified as a first taper wall that defines a tapered flow path that expands in the liquid inflow direction.

図１４および図１５は、第１自在栓７０１の断面図である。図１４および図１５を参照して、開位置から閉位置へ変位する第１止水コマ７２０の動作が説明される。第１テーパ壁７３０は、開位置から閉位置へ変位する第１止水コマ７２０の姿勢を自動的に修正する。具体的には、第１止水コマ７２０が閉位置へ変位する際に、重力方向Ａ２へ移動する第１止水コマ７２０の第１挿入部７２２が、下面側小径部７１１ａに直接挿入されず、第１自在栓筺体７１０の内周壁７１４と衝突する場合がある（図１４参照）。本実施形態の第１自在栓７０１は、第１テーパ壁７３０を備える。そのため、仮に第１挿入部７２２が下面側小径部７１１ａに直接挿入されず、内周壁７１４と衝突する場合であっても、第１止水コマ７２０は、第１テーパ壁７３０により矢印Ａ３方向へ姿勢が自動的に修正され、その後、第１挿入部７２２は、下面側小径部７１１ａの中心に挿入される（図１５参照）。第１基部７２１は、第１テーパ壁（第１収容管片）と協働して第１弾性部材を圧縮し、第１接続管部を閉じる第１基部として例示される。   14 and 15 are cross-sectional views of the first universal stopper 701. FIG. The operation of the first water stop piece 720 that is displaced from the open position to the closed position will be described with reference to FIGS. 14 and 15. The first tapered wall 730 automatically corrects the posture of the first water stop piece 720 that is displaced from the open position to the closed position. Specifically, when the first water stop piece 720 is displaced to the closed position, the first insertion portion 722 of the first water stop piece 720 that moves in the gravity direction A2 is not directly inserted into the lower surface side small diameter portion 711a. In some cases, the first universal plug housing 710 may collide with the inner peripheral wall 714 (see FIG. 14). The first universal plug 701 of this embodiment includes a first tapered wall 730. Therefore, even if the first insertion portion 722 is not directly inserted into the lower surface side small diameter portion 711a and collides with the inner peripheral wall 714, the first water stop piece 720 is moved in the direction of arrow A3 by the first taper wall 730. The posture is automatically corrected, and then the first insertion portion 722 is inserted into the center of the lower surface side small diameter portion 711a (see FIG. 15). The first base portion 721 is exemplified as the first base portion that compresses the first elastic member in cooperation with the first tapered wall (first accommodation tube piece) and closes the first connection tube portion.

図１６は、第２自在栓９０１の断面図である。図１６を参照して、第２自在栓９０１の構成が説明される。第２自在栓９０１は、第２テーパ壁９３０をさらに備える以外は、第２自在栓９００と同様の構成であるため、重複する説明は省略される。第２テーパ壁９３０は、大径部９１１ｂと上面側小径部９１１ｃとの接続部位には、洗浄液５００の流入方向Ａ１に向けて狭まるテーパ状の流路を規定する。第２テーパ壁９３０は、液体の流入方向に向けて狭まるテーパ状の流路を規定する第２テーパ壁として例示される。   FIG. 16 is a cross-sectional view of the second universal stopper 901. With reference to FIG. 16, the structure of the 2nd universal stopper 901 is demonstrated. Since the second universal plug 901 has the same configuration as the second universal plug 900 except that the second universal plug 901 further includes a second taper wall 930, a duplicate description is omitted. The second tapered wall 930 defines a tapered flow path that narrows in the inflow direction A1 of the cleaning liquid 500 at the connection portion between the large diameter portion 911b and the upper surface side small diameter portion 911c. The second taper wall 930 is exemplified as a second taper wall that defines a tapered flow path that narrows in the liquid inflow direction.

図１７および図１８は、第２自在栓９０１の断面図である。図１７および図１８を参照して、開位置から閉位置へ変位する第２止水コマ９２０の動作が説明される。第２テーパ壁９３０は、開位置から閉位置へ変位する第２止水コマ９２０の姿勢を自動的に修正する。具体的には、第１止水コマ７２０の動作と同様に、第２止水コマ９２０が閉位置へ変位する際に、重力方向Ａ４へ移動する第２止水コマ９２０の第２挿入部９２２が、上面側小径部９１１ｃに直接挿入されず、第２自在栓筺体９１０の内周壁９１４と衝突する場合がある（図１７参照）。本実施形態の第２自在栓９０１は、第２テーパ壁９３０を備える。そのため、仮に第２挿入部９２２が上面側小径部９１１ｃに直接挿入されず、内周壁９１４と衝突する場合であっても、第２止水コマ９２０は、第２テーパ壁９３０により矢印Ａ５方向へ姿勢が自動的に修正され、その後、第２挿入部９２２は、上面側小径部９１１ｃの中心に挿入される（図１８参照）。第２基部９２１は、第２テーパ壁９３０（第２収容管片）と協働して第２弾性部材９２３を圧縮し、第２接続管部を閉じる第２基部として例示される。   17 and 18 are cross-sectional views of the second universal stopper 901. FIG. The operation of the second water stop piece 920 that is displaced from the open position to the closed position will be described with reference to FIGS. 17 and 18. The second tapered wall 930 automatically corrects the posture of the second water stop piece 920 that is displaced from the open position to the closed position. Specifically, in the same manner as the operation of the first water stop piece 720, when the second water stop piece 920 is displaced to the closed position, the second insertion portion 922 of the second water stop piece 920 that moves in the gravity direction A4. However, it may not be directly inserted into the upper surface side small diameter portion 911c and may collide with the inner peripheral wall 914 of the second universal plug housing 910 (see FIG. 17). The second universal plug 901 of this embodiment includes a second tapered wall 930. Therefore, even if the second insertion portion 922 is not directly inserted into the upper surface side small diameter portion 911c and collides with the inner peripheral wall 914, the second water stop piece 920 is moved in the direction of arrow A5 by the second taper wall 930. The posture is automatically corrected, and then the second insertion portion 922 is inserted into the center of the upper surface side small diameter portion 911c (see FIG. 18). The second base portion 921 is exemplified as a second base portion that compresses the second elastic member 923 in cooperation with the second tapered wall 930 (second accommodating tube piece) and closes the second connecting tube portion.

＜第２の実施形態の口腔洗浄器の特有の効果＞
本実施形態の口腔洗浄器において、第１自在栓７０１は、第１テーパ壁７３０を含む。第１止水コマ７２０は、開位置から閉位置に変位する際に、第１基部７２１が第１テーパ壁７３０と接触することにより、第１止水コマ７２０の姿勢を適宜修正されながら案内され得る。その結果、第１基部７２１は、第１テーパ壁７３０と適切に当接し、第１止水コマ７２０が閉位置に存する場合の止水性は、向上され得る。同様に、第２自在栓９０１は、第２テーパ壁９３０を含む。第２止水コマ９２０は、開位置から閉位置に変位する際に、第２基部９２１が第２テーパ壁９３０と接触することにより、第２止水コマ９２０の姿勢を適宜修正されながら案内され得る。その結果、第２基部９２１は、第２テーパ壁９３０と適切に当接し、第２止水コマ９２０が閉位置に存する場合の止水性は、向上され得る。 <The effect peculiar of the mouth washer of a 2nd embodiment>
In the oral cleaner of the present embodiment, the first universal plug 701 includes a first tapered wall 730. When the first water stop piece 720 is displaced from the open position to the closed position, the first base portion 721 comes into contact with the first taper wall 730 and is guided while the posture of the first water stop piece 720 is appropriately corrected. obtain. As a result, the first base portion 721 can appropriately abut against the first tapered wall 730, and the water stoppage when the first water stop piece 720 is in the closed position can be improved. Similarly, the second universal plug 901 includes a second tapered wall 930. When the second water stop piece 920 is displaced from the open position to the closed position, the second base 921 comes into contact with the second taper wall 930, so that the posture of the second water stop piece 920 is guided while being appropriately corrected. obtain. As a result, the second base portion 921 is appropriately in contact with the second tapered wall 930, and the water stoppage when the second water stop piece 920 is in the closed position can be improved.

（第３の実施形態）
以下、本発明の口腔洗浄器の別の実施形態が、図面を参照して説明される。 (Third embodiment)
Hereinafter, another embodiment of the mouth washer of the present invention will be described with reference to the drawings.

＜口腔洗浄器１００ａの全体構成＞
図１９は、本実施形態の口腔洗浄器１００ａの部分断面図である。図１９を参照して、口腔洗浄器１００ａの全体構成が説明される。口腔洗浄器１００ａは、案内系統４５０ａにおいて第１の実施形態で上記した第２流入機構４５２（図１参照）に代えて第３流入機構４５２ａが設けられている以外は、第１の実施形態の口腔洗浄器１００と同様の構成であるため、重複する説明は適宜省略される。 <Whole structure of the mouth washer 100a>
FIG. 19 is a partial cross-sectional view of the mouth washer 100a of this embodiment. With reference to FIG. 19, the whole structure of the oral cavity cleaning device 100a is demonstrated. The mouth washer 100a is the same as that of the first embodiment except that a third inflow mechanism 452a is provided instead of the second inflow mechanism 452 (see FIG. 1) described in the first embodiment in the guide system 450a. Since it is the structure similar to the oral cavity cleaning device 100, the overlapping description is abbreviate | omitted suitably.

案内系統４５０ａは、第１流入機構４５１と、第３流入機構４５２ａとを含む。第３流入機構４５２ａは、第３パイプ８００ａと第３自在栓９００ａと第４パイプ８００ｂとを含む。第３流入機構４５２ａは、液体が流入する第２流入口が形成された第２流入部として例示される。   The guide system 450a includes a first inflow mechanism 451 and a third inflow mechanism 452a. The third inflow mechanism 452a includes a third pipe 800a, a third universal plug 900a, and a fourth pipe 800b. The 3rd inflow mechanism 452a is illustrated as the 2nd inflow part in which the 2nd inflow port into which a liquid flows in was formed.

第３パイプ８００ａは、内部に洗浄液５００が通過する通路が設けられた管状部材であり、洗浄液５００が流入する第３流入口が形成された第３流入端８１０ａと、第３自在栓９００ａとの接続口が形成された第３流出端８１１ａとを備える。第３流入口は、貯液タンクが加圧装置４２０の下方にあるとき、第１流入口より下方に位置する第２流入口として例示される。第３パイプ８００ａは、第２流入口が形成された第２流入端を有する第２管として例示される。   The third pipe 800a is a tubular member in which a passage through which the cleaning liquid 500 passes is provided. The third pipe 800a includes a third inflow end 810a in which a third inflow port into which the cleaning liquid 500 flows and a third universal plug 900a. And a third outflow end 811a formed with a connection port. The third inlet is exemplified as the second inlet located below the first inlet when the liquid storage tank is below the pressurizing device 420. The third pipe 800a is exemplified as a second pipe having a second inflow end formed with a second inflow port.

第４パイプ８００ｂは、内部に洗浄液５００が通過する通路が設けられた管状部材であり、第３自在栓９００ａとの接続口が形成された第４流入端８１０ｂを備える。第４パイプ８００ｂは、第４流入端８１０ｂを含む一部が筺体の下面から外部に突出し、残る一部が筺体内に配置されている。筺体内に配置された第１パイプ６００の一部と第４パイプ８００ｂの一部とは、合流して１つの合流パイプ４５３を形成する。   The fourth pipe 800b is a tubular member provided with a passage through which the cleaning liquid 500 passes, and includes a fourth inflow end 810b in which a connection port with the third universal plug 900a is formed. A part of the fourth pipe 800b including the fourth inflow end 810b projects outside from the lower surface of the casing, and the remaining part is disposed in the casing. A part of the first pipe 600 and a part of the fourth pipe 800b arranged in the housing join together to form one joining pipe 453.

＜第３自在栓９００ａの構成＞
図２０は、第３自在栓９００ａの斜視図である。第３自在栓９００ａの構成は、上記した第２自在栓９００の構成と同様であるため、重複する説明は、適宜省略される。第３自在栓９００ａは、洗浄液５００が通過する第３内部通路を備える第３自在栓筺体９１０と、該第３自在栓筺体９１０に収容され、第３内部通路内を変位する第３止水コマ（図示せず）とを含む。第３止水コマの構成は、上記した第２止水コマ９２０の構成と同様であるため、重複する説明は省略される。 <Configuration of third universal plug 900a>
FIG. 20 is a perspective view of the third universal stopper 900a. Since the configuration of the third universal plug 900a is the same as the configuration of the second universal plug 900 described above, the overlapping description will be omitted as appropriate. The third universal plug 900a includes a third universal plug housing 910 having a third internal passage through which the cleaning liquid 500 passes, and a third water stop piece that is accommodated in the third universal plug housing 910 and is displaced in the third internal passage. (Not shown). Since the structure of the 3rd water stop top is the same as that of the above-mentioned 2nd water stop piece 920, the overlapping description is abbreviate | omitted.

第３自在栓筺体９１０は、第３自在栓本体部９１０ａと、上記した第２流入口挿入部９１３に相当する第４パイプ側挿入部９１０ｂと、上記した第１流入口挿入部７１３に相当する第３パイプ側挿入部９１０ｃと、を備える。第３自在栓９００ａは、第２流入端に接続される第２制御部として例示される。また、第３自在栓９００ａは、液体が第２流入端から給液機構に向けて案内される経路の途中に配置される第２制御部として例示される。   The third universal plug housing 910 corresponds to the third universal plug main body 910a, the fourth pipe side insertion portion 910b corresponding to the second inlet insertion portion 913, and the first inlet insertion portion 713 described above. A third pipe side insertion portion 910c. The third universal plug 900a is exemplified as a second control unit connected to the second inflow end. In addition, the third universal plug 900a is exemplified as a second control unit that is disposed in the middle of a path through which the liquid is guided from the second inflow end toward the liquid supply mechanism.

＜第１止水コマ７２０の変位と第３止水コマの変位との協働関係＞
第１止水コマ７２０の変位と第３止水コマの変位との協働関係は、第１の実施形態において上記した第１止水コマ７２０の変位と第２止水コマ９２０の変位との協働関係と同様であるため、重複する説明は適宜省略される。第１止水コマ７２０および第３止水コマは、貯液タンクと加圧ポンプとの位置関係に応じて、開位置と閉位置との間で変位する。具体的には、第１止水コマ７２０が開位置に存する間、第３止水コマは閉位置に存し、第１止水コマ７２０が閉位置に存する間、第３止水コマは開位置に存する。 <Cooperation between displacement of first water stop piece 720 and displacement of third water stop piece>
The cooperative relationship between the displacement of the first water stop piece 720 and the displacement of the third water stop piece is the displacement between the displacement of the first water stop piece 720 and the displacement of the second water stop piece 920 described above in the first embodiment. Since it is the same as a cooperative relationship, the overlapping description will be omitted as appropriate. The first water stop piece 720 and the third water stop piece are displaced between the open position and the closed position according to the positional relationship between the liquid storage tank and the pressure pump. Specifically, while the first water stop piece 720 is in the open position, the third water stop piece is in the closed position, and while the first water stop piece 720 is in the closed position, the third water stop piece is open. In position.

＜第３の実施形態の口腔洗浄器１００ａの特有の効果＞
上記した第１の実施形態の口腔洗浄器１００では、第２自在栓９００は、第２流入口の第２流入端８１０に接続される。一方、本実施形態の口腔洗浄器１００ａでは、第３自在栓９００ａは、第３パイプ８００ａと第４パイプ８００ｂとに接続されるため、第３流入機構４５２ａの途中に配置され得る。そのため、第３自在栓９００ａの位置は限定されない。また、第３流入口は、貯液タンクが加圧装置４２０の下方にあるときに、第１流入口よりも下方にあればよい。そのため、第３パイプ８００ａの長さは貯液タンクの形状に合わせて自由に調整され得る。また、第３流入口の開口方向は、第３パイプ８００ａの径方向以外の方向（たとえば斜め方向）とされ得る。さらに、第３パイプ８００ａの形状を曲線形状（たとえばらせん状）としてもよい。その結果、貯液部の形状選択の幅が広がり得る。 <The specific effect of the mouth washer 100a of 3rd Embodiment>
In the mouth washer 100 of the first embodiment described above, the second universal plug 900 is connected to the second inflow end 810 of the second inflow port. On the other hand, in the mouth washer 100a of the present embodiment, the third universal stopper 900a is connected to the third pipe 800a and the fourth pipe 800b, and thus can be disposed in the middle of the third inflow mechanism 452a. Therefore, the position of the third universal plug 900a is not limited. Further, the third inlet may be located below the first inlet when the liquid storage tank is below the pressurizing device 420. Therefore, the length of the third pipe 800a can be freely adjusted according to the shape of the liquid storage tank. Further, the opening direction of the third inflow port may be a direction other than the radial direction of the third pipe 800a (for example, an oblique direction). Furthermore, the shape of the third pipe 800a may be a curved shape (for example, a spiral shape). As a result, the range of shape selection of the liquid storage part can be widened.

（第４の実施形態）
以下、本発明の口腔洗浄器の別の実施形態が、図面を参照して説明される。 (Fourth embodiment)
Hereinafter, another embodiment of the mouth washer of the present invention will be described with reference to the drawings.

＜口腔洗浄器１００ｂの全体構成＞
図２１は、本実施形態の口腔洗浄器１００ｂの部分断面図である。図２１を参照して、口腔洗浄器１００ｂの全体構成が説明される。口腔洗浄器１００ｂは、第１自在栓７００に代えて第４自在栓７００ａが設けられ、第２自在栓９００に代えて第５自在栓９００ｂが設けられている以外は、第１の実施形態の口腔洗浄器１００と同様の構成であるため、重複する説明は適宜省略される。 <Whole structure of the mouth washer 100b>
FIG. 21 is a partial cross-sectional view of the mouth washer 100b of this embodiment. With reference to FIG. 21, the whole structure of the oral cavity cleaning device 100b will be described. The oral cleaner 100b is the same as that of the first embodiment except that a fourth universal plug 700a is provided instead of the first universal plug 700, and a fifth universal plug 900b is provided instead of the second universal plug 900. Since it is the structure similar to the oral cavity cleaning device 100, the overlapping description is abbreviate | omitted suitably.

＜第４自在栓７００ａの構成＞
図２２は、第４自在栓７００ａの断面図である。図２２を参照して、第４自在栓７００ａの構成が説明される。 <Configuration of fourth universal plug 700a>
FIG. 22 is a cross-sectional view of the fourth universal stopper 700a. With reference to FIG. 22, the structure of the 4th universal stopper 700a is demonstrated.

第４自在栓７００ａは、洗浄液５００が通過する第４内部通路７６１を備える第４自在栓筺体７６０と、該第４自在栓筺体７６０に収容され、第４内部通路７６１内を変位する第４止水コマ７７０とを含む。第４内部通路７６１は、比較的径の小さい下面側小径部７６１ａと、該下面側小径部７６１ａよりも洗浄液５００の流入方向Ａ１の下流側に形成された大径部７６１ｂと、さらに洗浄液５００の流入方向Ａ１の下流側に形成された上面側小径部７６１ｃとから構成される。   The fourth universal plug 700a includes a fourth universal plug housing 760 having a fourth internal passage 761 through which the cleaning liquid 500 passes, and a fourth stopper which is accommodated in the fourth universal plug housing 760 and is displaced in the fourth internal passage 761. A water top 770. The fourth internal passage 761 includes a lower-diameter small-diameter portion 761a having a relatively small diameter, a large-diameter portion 761b formed downstream of the lower-surface-side small-diameter portion 761a in the inflow direction A1 of the cleaning liquid 500, and the cleaning liquid 500 It is comprised from the upper surface side small diameter part 761c formed in the downstream of the inflow direction A1.

第４自在栓筺体７６０は、後述する第４止水コマ７７０が接続される第１バネ接続部７９０を備える。第１バネ接続部７９０は、第４止水コマ７７０の第１バネ７７１の一端が接続される第１接続基部７９１と、該第１接続基部７９１を第４内部通路７６１の軸方向の中心に配置するための第１基部接続片７９２とを備える。それぞれの第１基部接続片７９２の間には、洗浄液５００の流入を許容する貫通孔７９３が形成されている。第１基部接続片７９２は、第１接続基部７９１の外周壁と第４自在栓筺体７６０の内周壁とを接続する。第１基部接続片７９２の数や配置は特に限定されない。本実施形態では、４つの第１基部接続片７９２を等間隔で離間した配置が例示される。   The fourth universal plug housing 760 includes a first spring connection portion 790 to which a later-described fourth water stop piece 770 is connected. The first spring connection portion 790 includes a first connection base 791 to which one end of the first spring 771 of the fourth water stop piece 770 is connected, and the first connection base 791 at the center of the fourth internal passage 761 in the axial direction. A first base connecting piece 792 for placement. Between each of the first base connecting pieces 792, a through hole 793 that allows the cleaning liquid 500 to flow is formed. The first base connection piece 792 connects the outer peripheral wall of the first connection base 791 and the inner peripheral wall of the fourth universal plug housing 760. The number and arrangement of the first base connecting pieces 792 are not particularly limited. In the present embodiment, an arrangement in which the four first base connecting pieces 792 are spaced apart at equal intervals is exemplified.

＜第４止水コマ７７０の構成＞
図２２および図２３は、第４止水コマ７７０の断面図である。図２２または図２３を参照して、第４止水コマ７７０の構成が説明される。第４止水コマ７７０は、第１バネ７７１をさらに含む以外は、第１止水コマ７２０と同様の構成であるため、重複する説明は適宜省略される。図２２は、自然長の長い第１バネ７７１を備える第４止水コマ７７０を示しており、図２３は、自然長の短い第１バネ７７１の備える第４止水コマ７７０を示している。 <Configuration of fourth water stop piece 770>
22 and 23 are cross-sectional views of the fourth water stop piece 770. The configuration of the fourth water stop piece 770 will be described with reference to FIG. 22 or FIG. The fourth water stop piece 770 has the same configuration as that of the first water stop piece 720 except that it further includes a first spring 771, and thus a duplicate description is omitted as appropriate. FIG. 22 shows a fourth water stop piece 770 provided with a first spring 771 having a long natural length, and FIG. 23 shows a fourth water stop piece 770 provided with a first spring 771 having a short natural length.

第１バネ７７１は、コイル状の鋼線からなり、第１基部天板７２１ｃの下面に接続される止水コマ側接続端７７１ａと、第１接続基部７９１に接続される基部側接続端７７１ｂとを備える。第１バネ７７１のコイル外径は、第１基部天板７２１ｃの下面の径と同程度である。また、第１バネ７７１のコイル内径は、第１接続基部７９１の外径と同程度である。止水コマ側接続端７７１ａは、コイルの外周縁と第１基部側壁７２１ｄの内周壁とが接触するよう嵌め込まれている。基部側接続端７７１ｂは、コイルの内周縁と基部側接続端７７１ｂとが接触するよう嵌め込まれている。第１バネ７７１は、第１挿入部を第１接続管部に挿入させる方向、または、第１挿入部を第１接続管部から抜き出す方向へ付勢する第１付勢部材として例示される。以下に、第１バネ７７１が第１挿入部を第１接続管部に挿入させる方向に付勢する場合と、第１バネ７７１が第１挿入部を第１接続管部から抜き出す方向へ付勢する場合とが説明される。   The first spring 771 is made of a coiled steel wire, and includes a water stop side connection end 771a connected to the lower surface of the first base top plate 721c, and a base side connection end 771b connected to the first connection base 791. Is provided. The outer diameter of the coil of the first spring 771 is approximately the same as the diameter of the lower surface of the first base top plate 721c. The coil inner diameter of the first spring 771 is approximately the same as the outer diameter of the first connection base 791. The water stop piece side connection end 771a is fitted so that the outer peripheral edge of the coil and the inner peripheral wall of the first base side wall 721d are in contact with each other. The base side connection end 771b is fitted so that the inner peripheral edge of the coil and the base side connection end 771b come into contact with each other. The first spring 771 is exemplified as a first urging member that urges the first insertion part in a direction in which the first insertion part is inserted into the first connection pipe part or a direction in which the first insertion part is extracted from the first connection pipe part. In the following, when the first spring 771 urges the first insertion portion in the direction of inserting the first insertion portion into the first connection tube portion, and when the first spring 771 urges the first insertion portion in the direction of extracting from the first connection tube portion. The case of doing is explained.

＜第１バネ７７１が第１挿入部７２２を第１接続管部に挿入させる方向に付勢する場合＞
第１バネ７７１の自然長が比較的長い場合（図２３参照）、第１バネ７７１は、第１挿入部７２２を第１接続管部に挿入させる方向に付勢する。 <When the first spring 771 biases the first insertion portion 722 in the direction of inserting the first insertion portion 722 into the first connection pipe portion>
When the natural length of the first spring 771 is relatively long (see FIG. 23), the first spring 771 biases the first insertion portion 722 in a direction to be inserted into the first connection pipe portion.

図２２に戻り、閉位置にある第４止水コマ７７０が説明される。第４止水コマ７７０において、第１バネ７７１は、自然長よりも圧縮されている。そのため、第１バネ７７１には、弾性エネルギーが蓄積され、自然長に戻るための復元力を備えている。当該復元力は、第１バネ７７１が、自身のバネ長をより長くする方向へ作用する。そのため、第４止水コマ７７０は、自重と第１バネ７７１の復元力とにより、第１挿入部７２２が下面側小径部７６１ａに挿入され、第１基部７２１が第１弾性部材７２３を介して第４自在栓筺体７６０の内周壁に当接される。この場合、下面側小径部７６１ａによる加圧装置４２０への洗浄液５００の流入が抑制される。このときの第４止水コマ７７０の存する位置を、第４止水コマ７７０の閉位置という。   Returning to FIG. 22, the fourth water stop piece 770 in the closed position will be described. In the fourth water stop piece 770, the first spring 771 is compressed more than the natural length. Therefore, the first spring 771 has a restoring force for accumulating elastic energy and returning to the natural length. The restoring force acts in a direction in which the first spring 771 makes its spring length longer. Therefore, in the fourth water stop piece 770, the first insertion portion 722 is inserted into the lower surface side small diameter portion 761a by its own weight and the restoring force of the first spring 771, and the first base portion 721 is interposed via the first elastic member 723. It abuts on the inner peripheral wall of the fourth universal plug housing 760. In this case, the inflow of the cleaning liquid 500 to the pressurizing device 420 by the lower surface side small diameter portion 761a is suppressed. The position where the fourth water stop piece 770 exists at this time is referred to as the closed position of the fourth water stop piece 770.

図２５は、開位置にある第４止水コマ７７０の断面図である。図２５を参照して、開位置にある第４止水コマ７７０が説明される。上記した閉位置にある第４止水コマ７７０が変位して、第１弾性部材７２３と第４自在栓筺体７６０の内周壁との当接状態が解除される場合、下面側小径部７６１ａによる加圧装置４２０への洗浄液５００の流入が許容される。閉位置から変位した第４止水コマ７７０の存する位置を、第４止水コマ７７０の開位置という。開位置において、第１バネ７７１は、上記した閉位置における状態よりもさらに圧縮されている。そのため、第１バネ７７１には、弾性エネルギー（自然長に戻るための復元力）が蓄積されている。閉位置から開位置への変位は、第４止水コマ７７０の自重と、第４内部通路７６１に流入する洗浄液５００が第４止水コマ７７０に与える流体力とによって起こる。この際、第１バネ７７１の復元力は、第４止水コマ７７０の自重と当該流体力との和よりも小さくなるよう、鋼材の種類、巻き数、径が調整される。   FIG. 25 is a cross-sectional view of the fourth water stop piece 770 in the open position. With reference to FIG. 25, the 4th water stop top 770 in an open position is demonstrated. When the fourth water stop piece 770 at the above-described closed position is displaced and the contact state between the first elastic member 723 and the inner peripheral wall of the fourth universal plug housing 760 is released, the additional pressure by the lower surface side small diameter portion 761a is released. Inflow of the cleaning liquid 500 into the pressure device 420 is allowed. The position where the fourth water stop piece 770 displaced from the closed position is referred to as the open position of the fourth water stop piece 770. In the open position, the first spring 771 is further compressed than in the closed position described above. Therefore, elastic energy (restoring force for returning to the natural length) is accumulated in the first spring 771. The displacement from the closed position to the open position is caused by the weight of the fourth water stop piece 770 and the fluid force that the cleaning liquid 500 flowing into the fourth internal passage 761 applies to the fourth water stop piece 770. At this time, the type, number of turns, and diameter of the steel material are adjusted so that the restoring force of the first spring 771 is smaller than the sum of the weight of the fourth water stop piece 770 and the fluid force.

＜第１バネ７７１が第１挿入部７２２を第１接続管部から抜き出す方向に付勢する場合＞
第１バネ７７１の自然長が比較的短い場合（図２４参照）、第１バネ７７１は、第１挿入部７２２を第１接続管部から抜き出す方向に付勢する。図２２に戻り、閉位置にある第４止水コマ７７０が説明される。図２２に示される位置にある第４止水コマ７７０において、第１バネ７７１は、自然長よりも引き伸ばされている。そのため、第１バネ７７１には、弾性エネルギー（自然長に戻るための復元力）が蓄積されている。当該復元力は、第１バネ７７１が自然長に戻る方向へ作用する。すなわち、第１バネ７７１は、第１挿入部７２２を下面側小径部７６１ａから抜き出す方向に付勢している。当該復元力が第４止水コマ７７０の自重よりも小さい場合、当該復元力は、第４止水コマ７７０の自重により打ち消される。そのため、第１挿入部７２２は下面側小径部７６１ａに挿入され、第１基部７２１が第１弾性部材７２３を介して第４自在栓筺体７６０の内周壁に当接される。第１バネ７７１の復元力は、第４止水コマ７７０の自重よりも小さくなるよう、鋼材の種類、巻き数、径が調整される。 <When the first spring 771 biases the first insertion portion 722 in the direction of extracting from the first connection tube portion>
When the natural length of the first spring 771 is relatively short (see FIG. 24), the first spring 771 biases the first insertion portion 722 in the direction of extracting it from the first connecting pipe portion. Returning to FIG. 22, the fourth water stop piece 770 in the closed position will be described. In the fourth water stop piece 770 at the position shown in FIG. 22, the first spring 771 is extended more than the natural length. Therefore, elastic energy (restoring force for returning to the natural length) is accumulated in the first spring 771. The restoring force acts in a direction in which the first spring 771 returns to the natural length. In other words, the first spring 771 biases the first insertion portion 722 in the direction of extracting from the lower surface side small diameter portion 761a. When the restoring force is smaller than the weight of the fourth water stop piece 770, the restoring force is canceled by the weight of the fourth water stop piece 770. Therefore, the first insertion portion 722 is inserted into the lower surface side small diameter portion 761a, and the first base portion 721 is brought into contact with the inner peripheral wall of the fourth universal plug housing 760 via the first elastic member 723. The type, number of turns, and diameter of the steel material are adjusted so that the restoring force of the first spring 771 is smaller than the weight of the fourth water stop piece 770.

図２５に戻り、開位置にある第４止水コマ７７０が説明される。上記した閉位置にある第４止水コマ７７０が変位して、第１弾性部材７２３と第４自在栓筺体７６０の内周壁との当接状態が解除される場合、下面側小径部７６１ａによる加圧装置４２０への洗浄液５００の流入が許容される。閉位置から変位した第４止水コマ７７０の存する位置を、第４止水コマ７７０の開位置という。閉位置から開位置への変位は、第４止水コマ７７０の自重と、第４内部通路７６１に流入する洗浄液５００が第４止水コマ７７０に与える流体力と、第１バネ７７１が自然長に戻るための復元力とによって起こる。   Returning to FIG. 25, the fourth water stop piece 770 in the open position will be described. When the fourth water stop piece 770 at the above-described closed position is displaced and the contact state between the first elastic member 723 and the inner peripheral wall of the fourth universal plug housing 760 is released, the additional pressure by the lower surface side small diameter portion 761a is released. Inflow of the cleaning liquid 500 into the pressure device 420 is allowed. The position where the fourth water stop piece 770 displaced from the closed position is referred to as the open position of the fourth water stop piece 770. The displacement from the closed position to the open position is caused by the dead weight of the fourth water stop piece 770, the fluid force that the cleaning liquid 500 flowing into the fourth internal passage 761 applies to the fourth water stop piece 770, and the first spring 771 having a natural length. Caused by the resilience to return to.

＜第５自在栓９００ｂの構成＞
図２６は、第５自在栓９００ｂの断面図である。図２６を参照して、第５自在栓９００ｂの構成が説明される。 <Configuration of fifth universal stopper 900b>
FIG. 26 is a sectional view of the fifth universal stopper 900b. With reference to FIG. 26, the configuration of the fifth universal stopper 900b will be described.

第５自在栓９００ｂは、洗浄液５００が通過する第５内部通路９６１を備える第５自在栓筺体９６０と、該第５自在栓筺体９６０に収容され、第５内部通路９６１内を変位する第５止水コマ９７０とを含む。第５内部通路９６１は、比較的径の小さい下面側小径部９６１ａと、該下面側小径部９６１ａよりも洗浄液５００の流入方向Ａ１の下流側に形成された大径部９６１ｂと、さらに洗浄液５００の流入方向Ａ１の下流側に形成された上面側小径部９６１ｃとから構成される。   The fifth universal plug 900b includes a fifth universal plug housing 960 having a fifth internal passage 961 through which the cleaning liquid 500 passes, and a fifth stopper that is accommodated in the fifth universal plug housing 960 and is displaced in the fifth internal passage 961. A water top 970. The fifth internal passage 961 includes a lower surface side small diameter portion 961a having a relatively small diameter, a large diameter portion 961b formed downstream of the lower surface side small diameter portion 961a in the inflow direction A1 of the cleaning liquid 500, and a cleaning liquid 500. It is comprised from the upper surface side small diameter part 961c formed in the downstream of the inflow direction A1.

第５自在栓筺体９６０は、後述する第５止水コマ９７０が接続される第２バネ接続部９９０を備える。第２バネ接続部９９０は、第２接続基部９９１と、４つの第２基部接続片９９２とを備える。それぞれの第２基部接続片９９２の間には、洗浄液５００の流入を許容する貫通孔９９３が形成されている。第２接続基部９９１および第２基部接続片９９２の構成は上記した第１接続基部７９１および第１基部接続片７９２（図２２参照）と同様であるため、これらの説明は省略される。   The fifth universal plug housing 960 includes a second spring connection portion 990 to which a fifth water stop piece 970 described later is connected. The second spring connection portion 990 includes a second connection base 991 and four second base connection pieces 992. A through hole 993 that allows the cleaning liquid 500 to flow in is formed between the second base connection pieces 992. Since the configurations of the second connection base 991 and the second base connection piece 992 are the same as those of the first connection base 791 and the first base connection piece 792 (see FIG. 22), description thereof will be omitted.

＜第５止水コマ９７０の構成＞
図２７および図２８は、第５止水コマ９７０の断面図である。図２７または図２８を参照して、第５止水コマ９７０の構成が説明される。第５止水コマ９７０は、第２バネ９７１をさらに含む以外は、第２止水コマ９２０と同様の構成であるため、重複する説明は適宜省略される。また、重複する構成については、同一の参照符号が付される。図２７は、自然長の長い第２バネ９７１を備える第５止水コマ９７０を示しており、図２８は、自然長の短い第２バネ９７１の備える第５止水コマ９７０を示している。 <Configuration of the fifth water stop piece 970>
27 and 28 are cross-sectional views of the fifth water stop piece 970. The configuration of the fifth water stop piece 970 will be described with reference to FIG. The fifth water stop piece 970 has the same configuration as that of the second water stop piece 920 except that the fifth water stop piece 970 further includes a second spring 971, and therefore, a duplicate description is omitted as appropriate. In addition, the same reference numerals are assigned to the overlapping configurations. FIG. 27 shows a fifth water stop piece 970 provided with a second spring 971 having a long natural length, and FIG. 28 shows a fifth water stop piece 970 provided with a second spring 971 having a short natural length.

第２バネ９７１は、コイル状の鋼線からなり、第２基部天板９２１ｃの下面に接続される止水コマ側接続端９７１ａと、第２接続基部９９１に接続される基部側接続端９７１ｂとを備える。第２バネ９７１の寸法および接続形態は、上記した第１バネ７７１と同様であるため、説明は省略される。第２バネ９７１は、第２挿入部を第２接続管部に挿入させる方向、または、第２挿入部を第２接続管部から抜き出す方向へ付勢する第２付勢部材として例示される。以下に、第２バネ９７１が第２挿入部を第２接続管部に挿入させる方向に付勢する場合と、第２バネ９７１が第２挿入部を第２接続管部から抜き出す方向へ付勢する場合とが説明される。   The second spring 971 is made of a coiled steel wire, and includes a water stop side connection end 971a connected to the lower surface of the second base top plate 921c, and a base side connection end 971b connected to the second connection base 991. Is provided. Since the dimension and connection form of the second spring 971 are the same as those of the first spring 771, the description is omitted. The second spring 971 is exemplified as a second urging member that urges the second insertion part in a direction in which the second insertion part is inserted into the second connection pipe part or a direction in which the second insertion part is extracted from the second connection pipe part. In the following, the second spring 971 biases the second insertion portion in the direction of inserting the second insertion portion into the second connection tube portion, and the second spring 971 biases the second insertion portion in the direction of extracting the second insertion portion from the second connection tube portion. The case of doing is explained.

＜第２バネ９７１が第２挿入部９２２を第２接続管部に挿入させる方向に付勢する場合＞
第２バネ９７１の自然長が比較的長い場合（図２７参照）、第２バネ９７１は、第２挿入部９２２を第２接続管部に挿入させる方向に付勢する。図２９は、閉位置にある第５止水コマ９７０の断面図である。図２９を参照して、閉位置にある第５止水コマ９７０の構成が説明される。図２９に示される位置にある第５止水コマ９７０において、第２バネ９７１は、自然長よりも圧縮されている。そのため、第２バネ９７１には、弾性エネルギー（自然長に戻るための復元力）が蓄積されている。当該復元力は、第２バネ９７１が、自身のバネ長をより長くする方向へ作用する。そのため、第５止水コマ９７０は、自重と第２バネ９７１の復元力とにより、第２挿入部９２２が上面側小径部９６１ｃに挿入され、第２基部９２１が第２弾性部材９２３を介して第５自在栓筺体９６０の内周壁に当接される。この場合、上面側小径部９６１ｃによる加圧装置４２０への洗浄液５００の流入が抑制される。このときの第５止水コマ９７０の存する位置を、第５止水コマ９７０の閉位置という。 <When the second spring 971 biases the second insertion portion 922 in the direction of inserting the second insertion portion 922 into the second connection pipe portion>
When the natural length of the second spring 971 is relatively long (see FIG. 27), the second spring 971 biases the second insertion portion 922 in a direction to be inserted into the second connection pipe portion. FIG. 29 is a cross-sectional view of the fifth water stop piece 970 in the closed position. With reference to FIG. 29, the structure of the 5th water stop top 970 in a closed position is demonstrated. In the fifth water stop piece 970 at the position shown in FIG. 29, the second spring 971 is compressed more than the natural length. Therefore, elastic energy (restoring force for returning to the natural length) is accumulated in the second spring 971. The restoring force acts in a direction in which the second spring 971 increases its own spring length. Therefore, in the fifth water stop piece 970, the second insertion portion 922 is inserted into the upper surface side small diameter portion 961c by its own weight and the restoring force of the second spring 971, and the second base portion 921 is interposed via the second elastic member 923. It abuts on the inner peripheral wall of the fifth universal plug housing 960. In this case, the flow of the cleaning liquid 500 into the pressurizing device 420 by the upper surface side small diameter portion 961c is suppressed. The position where the fifth water stop piece 970 exists at this time is referred to as a closed position of the fifth water stop piece 970.

図２６に戻り、開位置にある第５止水コマ９７０が説明される。上記した閉位置にある第５止水コマ９７０が変位して、第２弾性部材９２３と第５自在栓筺体９６０の内周壁との当接状態が解除される場合、上面側小径部９６１ｃによる加圧装置４２０への洗浄液５００の流入が許容される。閉位置から変位した第５止水コマ９７０の存する位置を、第５止水コマ９７０の開位置という。開位置において、第２バネ９７１は、上記した閉位置における状態よりもさらに圧縮されている。そのため、第２バネ９７１には、弾性エネルギー（自然長に戻るための復元力）が蓄積されている。閉位置から開位置への変位は、第５止水コマ９７０の自重と、第５内部通路９６１に流入する洗浄液５００が第５止水コマ９７０に与える流体力とによって起こる。この際、第２バネ９７１の復元力は、第５止水コマ９７０の自重と当該流体力との和よりも小さくなるよう、鋼材の種類、巻き数、径が調整される。   Returning to FIG. 26, the fifth water stop piece 970 in the open position will be described. When the fifth water stop piece 970 at the above-described closed position is displaced and the contact state between the second elastic member 923 and the inner peripheral wall of the fifth universal plug housing 960 is released, the addition by the upper surface side small diameter portion 961c is performed. Inflow of the cleaning liquid 500 into the pressure device 420 is allowed. The position where the fifth water stop piece 970 displaced from the closed position is referred to as the open position of the fifth water stop piece 970. In the open position, the second spring 971 is further compressed than in the state in the closed position described above. Therefore, elastic energy (restoring force for returning to the natural length) is accumulated in the second spring 971. The displacement from the closed position to the open position is caused by the weight of the fifth water stop piece 970 and the fluid force that the cleaning liquid 500 flowing into the fifth internal passage 961 applies to the fifth water stop piece 970. At this time, the type, number of turns, and diameter of the steel material are adjusted so that the restoring force of the second spring 971 is smaller than the sum of the weight of the fifth water stop piece 970 and the fluid force.

＜第２バネ９７１が第２挿入部９２２を第２接続管部から抜き出す方向に付勢する場合＞
第２バネ９７１の自然長が比較的短い場合（図２８参照）、第２バネ９７１は、第２挿入部９２２を第２接続管部から抜き出す方向に付勢する。図２９に戻り、閉位置にある第５止水コマ９７０が説明される。図２９に示される位置にある第５止水コマ９７０において、第２バネ９７１は、自然長よりも引き伸ばされている。そのため、第２バネ９７１には、弾性エネルギー（自然長に戻るための復元力）が蓄積されている。当該復元力は、第２バネ９７１が自然長に戻る方向へ作用する。すなわち、第２バネ９７１は、第２挿入部９２２を上面側小径部９６１ｃから抜き出す方向に付勢している。当該復元力が第５止水コマ９７０の自重よりも小さい場合、当該復元力は、第５止水コマ９７０の自重により打ち消されるため、第２挿入部９２２は上面側小径部９６１ｃに挿入され、第２基部９２１が第２弾性部材９２３を介して第５自在栓筺体９６０の内周壁に当接される。第２バネ９７１の復元力は、第５止水コマ９７０の自重よりも小さくなるよう、鋼材の種類、巻き数、径が調整される。 <When the second spring 971 biases the second insertion portion 922 in the direction of extracting from the second connection tube portion>
When the natural length of the second spring 971 is relatively short (see FIG. 28), the second spring 971 biases the second insertion portion 922 in the direction of extracting it from the second connection pipe portion. Returning to FIG. 29, the fifth water stop piece 970 in the closed position will be described. In the fifth water stop piece 970 at the position shown in FIG. 29, the second spring 971 is extended more than the natural length. Therefore, elastic energy (restoring force for returning to the natural length) is accumulated in the second spring 971. The restoring force acts in the direction in which the second spring 971 returns to the natural length. That is, the second spring 971 biases the second insertion portion 922 in the direction of extracting from the upper surface side small diameter portion 961c. When the restoring force is smaller than the dead weight of the fifth water stopping piece 970, the restoring force is canceled by the own weight of the fifth stopping water piece 970, so the second insertion portion 922 is inserted into the upper surface side small diameter portion 961c, The second base 921 is brought into contact with the inner peripheral wall of the fifth universal plug housing 960 via the second elastic member 923. The type, number of turns, and diameter of the steel material are adjusted so that the restoring force of the second spring 971 is smaller than the weight of the fifth water stop piece 970.

図２６に戻り、開位置にある第５止水コマ９７０が説明される。上記した閉位置にある第５止水コマ９７０が変位して、第２弾性部材９２３と第５自在栓筺体９６０の内周壁との当接状態が解除される場合、上面側小径部９６１ｃによる加圧装置４２０への洗浄液５００の流入が許容される。閉位置から変位した第５止水コマ９７０の存する位置を、第５止水コマ９７０の開位置という。閉位置から開位置への変位は、第５止水コマ９７０の自重と、第５内部通路９６１に流入する洗浄液５００が第５止水コマ９７０に与える流体力と、第２バネ９７１が自然長に戻るための復元力とによって起こる。   Returning to FIG. 26, the fifth water stop piece 970 in the open position will be described. When the fifth water stop piece 970 at the above-described closed position is displaced and the contact state between the second elastic member 923 and the inner peripheral wall of the fifth universal plug housing 960 is released, the addition by the upper surface side small diameter portion 961c is performed. Inflow of the cleaning liquid 500 into the pressure device 420 is allowed. The position where the fifth water stop piece 970 displaced from the closed position is referred to as the open position of the fifth water stop piece 970. The displacement from the closed position to the open position is caused by the self-weight of the fifth water stop piece 970, the fluid force that the cleaning liquid 500 flowing into the fifth internal passage 961 applies to the fifth water stop piece 970, and the second spring 971 is naturally long. Caused by the resilience to return to.

＜第４止水コマ７７０の変位と第５止水コマ９７０の変位との協働関係＞
第４止水コマ７７０の変位と第５止水コマ９７０の変位との協働関係は、第１の実施形態において上記した第１の止水コマの変位と第２の止水コマの変位との協働関係と同様であるため、重複する説明は適宜省略される。第４止水コマ７７０および第５止水コマ９７０は、貯液タンクと加圧ポンプとの位置関係に応じて、開位置と閉位置との間で変位する。具体的には、第４止水コマ７７０が開位置に存する間、第５止水コマ９７０は閉位置に存し、第４止水コマ７７０が閉位置に存する間、第５止水コマ９７０は開位置に存する。 <Cooperation between displacement of fourth water stop piece 770 and displacement of fifth water stop piece 970>
The cooperative relationship between the displacement of the fourth water stop piece 770 and the displacement of the fifth water stop piece 970 is the displacement of the first water stop piece and the displacement of the second water stop piece described above in the first embodiment. Since this is the same as the cooperative relationship, overlapping description will be omitted as appropriate. The fourth water stop piece 770 and the fifth water stop piece 970 are displaced between the open position and the closed position according to the positional relationship between the liquid storage tank and the pressure pump. Specifically, while the fourth water stop piece 770 is in the open position, the fifth water stop piece 970 is in the closed position, and while the fourth water stop piece 770 is in the closed position, the fifth water stop piece 970 is. Is in the open position.

＜第４の実施形態の口腔洗浄器１００ｂの特有の効果＞
本実施形態の口腔洗浄器１００ｂでは、第４止水コマ７７０が第１バネ７７１を含み、第５止水コマ９７０が第２バネ９７１を含む。第１バネ７７１は、第１挿入部７２２を下面側小径部７６１ａに挿入させる方向へ付勢する。この場合、第１止水コマ７２０は、開位置から閉位置へ、スムーズかつ的確に変位し得る。第２バネ９７１は、第２挿入部９２２を上面側小径部９６１ｃに挿入させる方向へ付勢する。この場合、第２止水コマ９２０は、開位置から閉位置へ、スムーズかつ的確に変位し得る。 <The peculiar effect of the mouth washer 100b of 4th Embodiment>
In the mouth washer 100b of this embodiment, the fourth water stop piece 770 includes a first spring 771 and the fifth water stop piece 970 includes a second spring 971. The first spring 771 biases the first insertion portion 722 in a direction in which the first insertion portion 722 is inserted into the lower surface side small diameter portion 761a. In this case, the first water stop piece 720 can be smoothly and accurately displaced from the open position to the closed position. The second spring 971 biases the second insertion portion 922 in a direction in which the second insertion portion 922 is inserted into the upper surface side small diameter portion 961c. In this case, the second water stop piece 920 can be smoothly and accurately displaced from the open position to the closed position.

（その他の変形実施形態）
本発明が実施形態により説明されたが、本発明はこれに限定されるものではなく、たとえば以下のような変形実施形態がある。 (Other modified embodiments)
Although the present invention has been described with the embodiment, the present invention is not limited to this, and for example, there are the following modified embodiments.

（１）上記した実施形態では、弾性部材の一部が止水コマの基部天板に埋め込まれる態様を例示した。これに代えて、本発明では、弾性部材の一部を自在栓筺体の内周壁に埋め込み、開位置から閉位置に変位する止水コマの基部天板が当接する態様を採用してもよい。   (1) In the above-described embodiment, an example in which a part of the elastic member is embedded in the base top plate of the water stop piece is illustrated. Instead, in the present invention, a mode in which a part of the elastic member is embedded in the inner peripheral wall of the universal stopper housing and the base top plate of the water stop piece that is displaced from the open position to the closed position may be employed.

（２）上記した実施形態（第３の実施形態）では、第１自在栓７００と第３自在栓９００ａとを備える口腔洗浄器１００ａを例示した（図１９参照）。すなわち、複数の自在栓が設けられた口腔洗浄器を例示した。これに代えて、本発明では、第１自在栓本体部７１２の外周壁と、第３自在栓本体部９１０ａの外周壁とを接合した一体型の自在栓を設けてもよい。この場合、加圧装置４２０へ繋がるパイプは、１本としてもよい。第１自在栓７００と第３自在栓９００ａとを一体的に形成することにより、部品点数が減少し、コスト面が向上され得る。   (2) In the above-described embodiment (third embodiment), the oral cleaning device 100a including the first universal plug 700 and the third universal plug 900a is illustrated (see FIG. 19). That is, the mouth washer provided with a plurality of universal stoppers. Instead of this, in the present invention, an integrated universal plug in which the outer peripheral wall of the first universal plug main body 712 and the outer peripheral wall of the third universal plug main body 910a may be provided. In this case, the number of pipes connected to the pressure device 420 may be one. By integrally forming the first universal plug 700 and the third universal plug 900a, the number of parts can be reduced and the cost can be improved.

（３）上記した実施形態（第３の実施形態）では、第３自在栓９００ａが、第３パイプ８００ａと第４パイプ８００ｂとの間に接続されることにより、第３自在栓９００ａが第３流入機構４５２ａの途中に配置された口腔洗浄器１００ａを例示した（図１９参照）。これに代えて、本発明では、第３流入機構４５２ａをパイプと該パイプの通路内に挿入される自在栓により構成してもよい。図３０は、第３自在栓９００ａの別例（自在栓９００ｃ）を示す斜視図である。図３１は、第３流入機構４５２ａの別例（流入機構４５２ｂ）を示す断面図である。図３０および図３１を参照して、第３流入機構４５２ａの別例が説明される。   (3) In the above-described embodiment (third embodiment), the third universal stopper 900a is connected between the third pipe 800a and the fourth pipe 800b, whereby the third universal stopper 900a is the third. The mouth washer 100a arranged in the middle of the inflow mechanism 452a was illustrated (refer FIG. 19). Instead, in the present invention, the third inflow mechanism 452a may be constituted by a pipe and a free plug inserted into the passage of the pipe. FIG. 30 is a perspective view showing another example (a universal plug 900c) of the third universal plug 900a. FIG. 31 is a cross-sectional view showing another example (inflow mechanism 452b) of the third inflow mechanism 452a. With reference to FIGS. 30 and 31, another example of the third inflow mechanism 452a will be described.

自在栓９００ｃは、洗浄液５００が通過する内部通路９１１ｃを備える円筒状の自在栓筺体９１０と、自在栓筺体９１０ｃに収容され、内部通路９１１ｃ内を変位する止水コマ９２０ｃとを含む。内部通路９１１ｃの形状は、第３の実施形態において上記した第３内部通路の形状と同様であり、止水コマ９２０ｃの形状および動作は、第３の実施形態において上記した第３止水コマの形状および動作と同様であるため、これらの説明は省略される。   The universal plug 900c includes a cylindrical universal plug housing 910 having an internal passage 911c through which the cleaning liquid 500 passes, and a water stop piece 920c that is accommodated in the universal plug housing 910c and is displaced in the internal passage 911c. The shape of the internal passage 911c is the same as the shape of the third internal passage described above in the third embodiment, and the shape and operation of the water stop piece 920c are the same as those of the third water stop piece described above in the third embodiment. Since the shape and operation are the same, the description thereof is omitted.

パイプ８００ｃは、伸縮性を備える樹脂からなる。パイプ８００ｃの内径は、自在栓筺体９１０ｃの外径よりもわずかに小さい。そのため、自在栓９１０は、パイプ８００ｃの通路内に挿入でき、かつ、パイプ８００ｃの通路途中に保持され得る。   The pipe 800c is made of a resin having elasticity. The inner diameter of the pipe 800c is slightly smaller than the outer diameter of the universal stopper housing 910c. Therefore, the universal plug 910 can be inserted into the passage of the pipe 800c and can be held in the middle of the passage of the pipe 800c.

本別例によれば、自在栓９１０は、パイプ８００ｃの通路内に挿入されて保持される。そのため、自在栓をパイプの流入口に接続する場合と比較して、自在栓やパイプの脱落が防がれる。その結果、口腔洗浄器は、故障の可能性が軽減され得る。   According to this example, the universal stopper 910 is inserted and held in the passage of the pipe 800c. Therefore, it is possible to prevent the free plug and the pipe from falling off compared to the case where the free plug is connected to the inlet of the pipe. As a result, the mouth washer can reduce the possibility of failure.

本発明の口腔洗浄器は、口腔内の歯間に詰まった食べかす除去や歯頸部の洗浄、歯茎の刺激による血流増加等を行うための口腔洗浄器に好適に適用される。具体的には、本発明の口腔洗浄器は、家庭内での個人的な使用に加え、たとえば、歯科医等の術者が、患者の口腔内を洗浄する際や、歯周病予防のために歯周ポケット内を清掃する際や、歯周ポケット内に薬液を注入する際に使用される。ほかにも、本発明の上記した原理は、たとえば、園芸用または家庭用の噴霧器、ハンディ型吸入器、塗装用スプレーの用途にも利用される。   The oral irrigator of the present invention is suitably applied to an oral irrigator for removing clogs clogged between teeth in the oral cavity, cleaning the tooth neck, increasing blood flow by stimulating gums, and the like. Specifically, the mouth washer of the present invention is used for personal use at home, for example, when a surgeon such as a dentist cleans the mouth of a patient or for prevention of periodontal disease. It is used when cleaning the periodontal pocket or injecting a chemical into the periodontal pocket. In addition, the above-described principle of the present invention is also used for, for example, horticultural or household sprayers, handy inhalers, and sprays for painting.

１００ 口腔洗浄器
２００ 貯液タンク
３００ 吐出ノズル
４００ 口腔洗浄器本体
４１０ 筺体
４２０ 加圧装置
４３０ 連結パイプ
４４０ 電源系統
４５０ 案内系統
４５１ 第１流入機構
４５２ 第２流入機構
５００ 洗浄液
６００ 第１パイプ
７００ 第１自在栓
８００ 第２パイプ
９００ 第２自在栓
DESCRIPTION OF SYMBOLS 100 Oral washer 200 Liquid storage tank 300 Discharge nozzle 400 Oral washer main body 410 Housing 420 Pressurizer 430 Connection pipe 440 Power supply system 450 Guide system 451 First inflow mechanism 452 Second inflow mechanism 500 Cleaning liquid 600 First pipe 700 First Universal stopper 800 Second pipe 900 Second universal stopper

Claims (13)

口腔内を洗浄するための液体を溜める貯液部と、
該貯液部から前記口腔内へ前記液体を送り出す給液機構と、
前記貯液部から前記給液機構へ流れる前記液体を案内する案内機構と、を備え、
前記案内機構は、
前記液体が流入する第１流入口が形成された第１流入部と、
前記液体が流入する第２流入口が形成された第２流入部と、を含み、
前記貯液部が前記給液機構の下方にあるとき、前記第２流入口は、前記第１流入口より下方に位置することを特徴とする口腔洗浄器。 A liquid storage part for storing a liquid for cleaning the oral cavity;
A liquid supply mechanism for delivering the liquid from the liquid storage part into the oral cavity;
A guide mechanism for guiding the liquid flowing from the liquid storage part to the liquid supply mechanism,
The guide mechanism is
A first inflow part formed with a first inflow port through which the liquid flows;
A second inflow part formed with a second inflow port through which the liquid flows in, and
When the liquid reservoir is below the liquid supply mechanism, the second inflow port is positioned below the first inflow port. 前記第１流入部は、前記液体の流入を許容する開位置と、前記液体の流入を抑制する閉位置と、の間で変位する第１止水コマを有する第１制御部を含み、
前記第２流入部は、前記液体の流入を許容する開位置と、前記液体の流入を抑制する閉位置と、の間で変位する第２止水コマを有する第２制御部を含み、
前記第１止水コマおよび前記第２止水コマは、前記貯液部と前記給液機構との間の位置関係に応じて、前記開位置と前記閉位置との間で変位することを特徴とする請求項１記載の口腔洗浄器。 The first inflow part includes a first control unit having a first water stop piece that is displaced between an open position that allows the liquid to flow in and a closed position that suppresses the liquid inflow;
The second inflow portion includes a second control unit having a second water stop piece that is displaced between an open position that allows the inflow of the liquid and a closed position that suppresses the inflow of the liquid,
The first water stop piece and the second water stop piece are displaced between the open position and the closed position in accordance with a positional relationship between the liquid storage unit and the liquid supply mechanism. The oral cavity cleaner according to claim 1. 前記第１止水コマおよび前記第２止水コマのうち一方が、前記開位置に存する間、前記第１止水コマおよび前記第２止水コマのうち他方は、前記閉位置に存することを特徴とする請求項２記載の口腔洗浄器。   While one of the first water stop piece and the second water stop piece is in the open position, the other of the first water stop piece and the second water stop piece is in the closed position. The mouth washer according to claim 2. 前記貯液部が前記給液機構の下方にあるとき、前記第２止水コマは、前記開位置に存し、
前記貯液部が前記給液機構の上方にあるとき、前記第２止水コマは、前記閉位置に存することを特徴とする請求項３記載の口腔洗浄器。 When the liquid reservoir is below the liquid supply mechanism, the second water stop piece is in the open position,
The oral cavity cleaner according to claim 3, wherein when the liquid storage part is above the liquid supply mechanism, the second water stop piece is in the closed position. 前記第１制御部は、前記給液機構への前記液体の流入を許容する第１接続管部を含む第１収容管片を含み、
前記第２制御部は、前記給液機構への前記液体の流入を許容する第２接続管部を含む第２収容管片を含み、
前記第１止水コマは、前記第１収容管片に収容され、
前記第２止水コマは、前記第２収容管片に収容され、
前記貯液部が前記給液機構の下方にあるとき、前記第１止水コマは前記第１接続管部を閉じる一方で、前記第２止水コマは前記第２接続管部を開き、
前記貯液部が前記給液機構の上方にあるとき、前記第１止水コマは前記第１接続管部を開く一方で、前記第２止水コマは前記第２接続管部を閉じることを特徴とする請求項３記載の口腔洗浄器。 The first control unit includes a first housing tube piece including a first connection tube unit that allows the liquid to flow into the liquid supply mechanism,
The second control unit includes a second accommodation tube piece including a second connection tube unit that allows the liquid to flow into the liquid supply mechanism,
The first water stop piece is housed in the first housing pipe piece,
The second water stop piece is housed in the second housing pipe piece,
When the liquid storage part is below the liquid supply mechanism, the first water stop piece closes the first connection pipe part, while the second water stop piece opens the second connection pipe part,
When the liquid storage part is above the liquid supply mechanism, the first water stop piece opens the first connection pipe part, while the second water stop piece closes the second connection pipe part. The mouth washer according to claim 3. 前記第１流入部は、前記第１流入口が形成された第１流入端を有する第１管を含み、
前記第２流入部は、前記第２流入口が形成された第２流入端を有する第２管を含み、
前記第１制御部は、前記第１流入端に接続され、
前記第２制御部は、前記第２流入端に接続されることを特徴とする請求項５記載の口腔洗浄器。 The first inflow portion includes a first pipe having a first inflow end formed with the first inflow port,
The second inflow portion includes a second pipe having a second inflow end in which the second inflow port is formed,
The first control unit is connected to the first inflow end,
The oral cleaner according to claim 5, wherein the second control unit is connected to the second inflow end. 前記第１流入部は、前記第１流入口が形成された第１流入端を有する第１管を含み、
前記第２流入部は、前記第２流入口が形成された第２流入端を有する第２管を含み、
前記第１制御部は、前記第１流入端に接続され、
前記第２制御部は、前記液体が前記第２流入端から前記給液機構に向けて案内される経路の途中に配置されることを特徴とする請求項５記載の口腔洗浄器。 The first inflow portion includes a first pipe having a first inflow end formed with the first inflow port,
The second inflow portion includes a second pipe having a second inflow end in which the second inflow port is formed,
The first control unit is connected to the first inflow end,
The oral cleaner according to claim 5, wherein the second control unit is disposed in the middle of a path in which the liquid is guided from the second inflow end toward the liquid supply mechanism. 前記第１止水コマは、前記第１接続管部に挿入される第１挿入部と、該第１挿入部を取り巻くように形成された第１弾性部材と、前記第１挿入部と前記第１弾性部材とに隣接する第１基部と、を含み、
前記貯液部が前記給液機構の下方にあるとき、前記第１基部は、前記第１収容管片と協働して前記第１弾性部材を圧縮し、前記第１接続管部を閉じることを特徴とする請求項５〜７のいずれか１項に記載の口腔洗浄器。 The first water stop piece includes a first insertion portion that is inserted into the first connection pipe portion, a first elastic member that is formed so as to surround the first insertion portion, the first insertion portion, and the first insertion portion. A first base adjacent to one elastic member,
When the liquid storage part is below the liquid supply mechanism, the first base cooperates with the first accommodation pipe piece to compress the first elastic member and close the first connection pipe part. The mouth washer according to any one of claims 5 to 7. 前記第２止水コマは、前記第２接続管部に挿入される第２挿入部と、該第２挿入部を取り巻くように形成された第２弾性部材と、前記第２挿入部と前記第２弾性部材とに隣接する第２基部と、を含み、
前記貯液部が前記給液機構の上方にあるとき、前記第２基部は、前記第２収容管片と協働して前記第２弾性部材を圧縮し、前記第２接続管部を閉じることを特徴とする請求項５〜７のいずれか１項に記載の口腔洗浄器。 The second water stop piece includes a second insertion portion that is inserted into the second connection pipe portion, a second elastic member that is formed to surround the second insertion portion, the second insertion portion, and the second insertion portion. A second base adjacent to the two elastic members;
When the liquid storage part is above the liquid supply mechanism, the second base part cooperates with the second storage pipe piece to compress the second elastic member and close the second connection pipe part. The mouth washer according to any one of claims 5 to 7. 前記第１収容管片は、前記液体の流入方向に向けて拡がるテーパ状の流路を規定する第１テーパ壁を含み、
前記貯液部が前記給液機構の下方にあるとき、前記第１基部は、前記第１テーパ壁と協働して前記第１弾性部材を圧縮し、前記第１接続管部を閉じることを特徴とする請求項８記載の口腔洗浄器。 The first accommodating pipe piece includes a first tapered wall that defines a tapered flow path that expands in the inflow direction of the liquid,
When the liquid reservoir is below the liquid supply mechanism, the first base cooperates with the first taper wall to compress the first elastic member and close the first connecting pipe. The mouth washer according to claim 8 characterized by. 前記第２収容管片は、前記液体の流入方向に向けて狭まるテーパ状の流路を規定する第２テーパ壁を含み、
前記貯液部が前記給液機構の上方にあるとき、前記第２基部は、前記第２テーパ壁と協働して前記第２弾性部材を圧縮し、前記第２接続管部を閉じることを特徴とする請求項９記載の口腔洗浄器。 The second accommodating pipe piece includes a second tapered wall that defines a tapered flow path that narrows in the inflow direction of the liquid,
When the liquid storage part is above the liquid supply mechanism, the second base part cooperates with the second tapered wall to compress the second elastic member and close the second connection pipe part. The oral cavity cleaner according to claim 9. 前記第１制御部は、前記第１挿入部を前記第１接続管部に挿入させる方向、または、前記第１挿入部を前記第１接続管部から抜き出す方向へ付勢する第１付勢部材を含むことを特徴とする請求項８または１０記載の口腔洗浄器。   The first control part is a first biasing member that biases the first insertion part in a direction in which the first insertion part is inserted into the first connection pipe part or a direction in which the first insertion part is extracted from the first connection pipe part. The mouth washer according to claim 8 or 10, comprising: 前記第２制御部は、前記第２挿入部を前記第２接続管部に挿入させる方向、または、前記第２挿入部を前記第２接続管部から抜き出す方向へ付勢する第２付勢部材を含むことを特徴とする請求項９または１１記載の口腔洗浄器。

The second control part is a second biasing member that biases the second insertion part in a direction in which the second insertion part is inserted into the second connection pipe part or a direction in which the second insertion part is extracted from the second connection pipe part. The mouth washer according to claim 9 or 11, comprising:

JP2013011169A 2013-01-24 2013-01-24 Oral cavity washer Pending JP2014140527A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024000573A1 (en) * 2022-07-01 2024-01-04 深圳纽迪瑞科技开发有限公司 Oral irrigator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024000573A1 (en) * 2022-07-01 2024-01-04 深圳纽迪瑞科技开发有限公司 Oral irrigator

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