JP3771068B2 - Normal inverted pump - Google Patents

Normal inverted pump Download PDF

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Publication number
JP3771068B2
JP3771068B2 JP33862398A JP33862398A JP3771068B2 JP 3771068 B2 JP3771068 B2 JP 3771068B2 JP 33862398 A JP33862398 A JP 33862398A JP 33862398 A JP33862398 A JP 33862398A JP 3771068 B2 JP3771068 B2 JP 3771068B2
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Japan
Prior art keywords
flow path
suction
switching device
inverted
automatic switching
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JP33862398A
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JP2000161206A (en
Inventor
義幸 角田
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/0068—Jars
    • A45D40/0075—Jars with dispensing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1009—Piston pumps actuated by a lever
    • B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke

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  • Closures For Containers (AREA)
  • Details Of Reciprocating Pumps (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、正倒立両用ポンプに関するものである。
【０００２】
【従来の技術】
トリガー式正倒立両用ポンプは、ポンプ本体の吸込口に正立流路と倒立流路とを切り替える吸込流路自動切替装置を備え、その正立流路側に吸上パイプを連繋して該吸上パイプを容器体内下部に伸出させるようにするとともに、その倒立流路を容器体内ヘッド部に開口させるようにしている。また、液体の噴出に伴う容器体内の負圧化を防止すべく、ポンプ本体にトリガーを引くことで開路する外気導入路を備えている。
このトリガー式正倒立両用ポンプは、液体を収容した容器体の口頸部に装着して使用するが、正立時には、その吸込流路自動切替装置が正立流路のみを開路させ、したがって、トリガーを操作してポンプ本体を作動させることにより、容器体内の液体が吸上パイプを通じてポンプ本体内に吸い上げられ、ノズルから噴出される。また、倒立時には、その吸込流路自動切替装置が倒立流路のみを開路させ、したがって、トリガーを操作してポンプ本体を作動させることにより、倒立に伴い容器体内ヘッド部に入った液体が倒立流路を介してポンプ本体内に吸い上げられ、ノズルから噴出される。そして、トリガーを操作する度に外気導入路が開路して、容器体内へと外気が流入し、液体の噴出に伴う容器体内の負圧化が防止される。
【０００３】
【発明が解決しようとする課題】
しかしながら、この種のトリガー式正倒立両用ポンプでは、倒立時に導入された負圧化防止用の外気が、倒立姿勢にてその容器体内ヘッド部に入った液体中に気泡となって進入し、これが本来液体のみを吸入すべき倒立流路に入り込んで、ノズルからの噴出状態を悪化させる。
そこで、本発明は、倒立時におけるポンプ本体へのこのような空気の侵入を阻止して、ノズルからの噴出状態の悪化を防ぎ、併せて、吸込流路自動切替装置を簡潔なものにしようとするものである。
【０００４】
【課題を解決するための手段】
上記目的達成のため、請求項１の発明は、ポンプ本体１の吸込口２に吸込流路自動切替装置３を介して吸上パイプ４を連繋させ、その吸込流路自動切替装置３には、上記吸上パイプ４を上記吸込口２へと連通させた正立流路５と、当該装置の周面適所に流路口７を有して上記吸込口２へと連通させた倒立流路６を設けるとともに、両流路５，６を姿勢に相応して自動的に切り替える流路切替手段８を講じ、また、上記ポンプ本体１にトリガー９を引くことで外部から容器体Ｂ内へと開通する外気導入路10を形成した正倒立両用ポンプにおいて、上記吸込流路自動切替装置３の外側に下端開放のエア排除筒11を被着させて、上記流路口７を液通可能に覆ったことを特徴とする。
【０００５】
請求項２の発明は、請求項１の正倒立両用ポンプにあって、上記流路切替手段８として、倒立姿勢にて上記流路口７から上記倒立流路６に流入する液体を上記正立流路５へと自然流入させる構造とし、かつ、その倒立流路６内に専ら正立姿勢で自動閉弁する流路制御弁12を装備させて成る。
【０００６】
請求項３の発明は、請求項１又は請求項２の正倒立両用ポンプにあって、上記流路口７を上記吸込流路自動切替装置３の前面に設け、該吸込流路自動切替装置及び上記エア排除筒11をともに前方へと傾斜させて成る。
【０００７】
請求項４の発明は、請求項２又は請求項３の正倒立両用ポンプにあって、上記吸込流路自動切替装置３として、底壁14から前面に外気導入溝16を有する外嵌合筒15と下端を開放した内嵌合筒17とを立設して成る基筒部13を設けて、その外嵌合筒15を上記ポンプ本体１の下端部18の内周へと嵌合連結させるとともに、その内嵌合筒17を上記ポンプ本体１の吸込口２へと嵌合連結させ、そして、その基筒部12の底壁14から上記内嵌合筒17へと開通させて上記エア排除筒11を一体に垂設し、該エア排除筒内に上述の正立流路５、倒立流路６及び流路制御弁12を有する中子19を嵌合させ、該中子の下端から上記吸上パイプ４を垂設して成る。
【０００８】
請求項５の発明は、請求項４の正倒立両用ポンプにあって、上記流路口７を上記吸込流路自動切替装置３の前面に設け、また、上記基筒部13の底壁14を前高後低に傾斜させることで、上記吸込流路自動切替装置３及び上記エア排除筒11をともに前方へと傾斜させて成る。
【０００９】
【発明の実施の形態】
図面は、本発明に係る正倒立両用ポンプの実施の形態を示している。
図において、Ａは、トリガー式正倒立両用ポンプ、Ｂは、該トリガー式正倒立両用ポンプを装着した容器体であり、いずれも合成樹脂製のものである。
【００１０】
トリガー式正倒立両用ポンプＡは、正倒立両用のポンプ本体１の吸込口２に吸込流路自動切替装置３を介して吸上パイプ４を嵌合連繋させ、その吸込流路自動切替装置３の周りに配してポンプ本体１の下端部18に回転自在に装備させた装着筒20により容器体Ｂの口頸部Baに着脱自在に螺着し、吸上パイプ４の下端をその容器体Ｂの内底コーナー部まで伸出させるようにしている。
ポンプ本体１は、前部からトリガー９を前後動自在に垂設し、該トリガーの背後に前方へ向けてポンプシリンダ21を配し、該ポンプシリンダ内に摺動自在に嵌合させたポンプピストン22をそのトリガーの中途部で出入摺動させるようにしている。23は、ポンプ本体１の前端に装備させたノズル、24は、吸込口２とポンプシリンダ21の間の流路に介在させた吸込弁、25は、ポンプシリンダ21とノズル23の間の流路に介在させた吐出弁である。
ポンプシリンダ21の下部には、トリガー９を引くことで外部から容器体Ｂ内へと開通する外気導入路10、すなわち、ポンプシリンダ21の下部に、出状態のポンプピストン22で閉孔、入状態のポンプピストンで開口される透孔26を穿設することで、ポンプシリンダ内前部から通じる外気導入路10を形成している。
【００１１】
吸込流路自動切替装置３には、吸上パイプ４を吸込口２へと連通させた正立流路５と、当該装置の前面にて容器体内ヘッド部へと開口する流路口７を有して上記吸込口２へと連通させた倒立流路６を設けるとともに、両流路５，６を姿勢に相応して自動的に切り替える流路切替手段８を講じ、また、吸込流路自動切替装置３の外側に下端開放のエア排除筒11を被着させて、上記流路口７を液通可能に覆っている。
流路切替手段８は、倒立姿勢にて上記流路口７から上記倒立流路６に流入する液体を上記正立流路５へと自然流入させる構造とし、かつ、その倒立流路６内に専ら正立姿勢で自動閉弁する玉弁とテーパ弁座とから成る流路制御弁12を装備させている。ただし、該流路制御弁は、倒立姿勢においてその自然流入に悪影響を与えない状態で開弁するものとする。
【００１２】
また、吸込流路自動切替装置３では、底壁14から前面に外気導入溝16を有する外嵌合筒15と下端を開放させた内嵌合筒17とを立設して基筒部13を設け、その外嵌合筒15をポンプ本体１の下端部18の内周へと嵌合連結させるとともに、その内嵌合筒17をポンプ本体１の吸込口２へと嵌合連結させ、基筒部12の底壁14から内嵌合筒17へと開通させてエア排除筒11を一体に垂設し、該エア排除筒内に上述の正立流路５、倒立流路６及び流路制御弁12を有する中子19を嵌合させ、該中子の下端に設けた嵌合垂筒27に吸上パイプ４の上端を嵌合させて垂設し、更に、基筒部13の底壁14を前高後低に傾斜させることで、上記吸込流路自動切替装置３及び上記エア排除筒11を前方へと傾斜させ、吸上パイプ４も合わせて前方へと傾斜させている。
【００１３】
如上の構成であり、容器体Ｂに液体を収容してトリガー式正倒立両用ポンプＡを作動させるが、まず、正立姿勢の場合には、吸込流路自動切替装置３において、流路制御弁12がテーパ弁座への玉弁の着座で閉弁しており、したがって、容器体Ａ内の液体が吸上パイプ４、吸込流路自動切替装置３の正立流路５を経てポンプ本体１に吸い上げられ、該ポンプ本体のノズル23から噴出される。
また、ノズル23を下にした横倒しの際には、前方へと傾斜した吸上パイプ４により、容器体Ａ内の液体が少なくなっていても残る大半が支障なく吸い上げられる。
次に、深い前倒姿勢乃至倒立姿勢の際には、吸込流路自動切替装置３において流路制御弁12がテーパ弁座からの玉弁の離間で開弁し、したがって、容器体Ａ内ヘッド部の液体が流路口７から倒立流路６を経て正立流路５へと流入し、ポンプ本体１に吸い込まれて、該ポンプ本体のノズル23から噴出される。なお、この倒立姿勢において、倒立流路６から正立流路５に至る流路が液中に没している限り、この流路へ倒立容器体Ｂ内の液体が自然流入するので、倒立容器体Ｂ内の空気が吸上パイプ４から正立流路５へと流入するようなことはない。
その深い前倒姿勢の際には、倒立流路６の流路口７が下方に位置するので、容器体Ａの液体が少なくなっていてもヘッド部内の液体は容易にポンプ本体１に吸い込まれる。
このようにして容器体Ａ内の液体がポンプ本体１に吸い込まれてノズル23から噴出されると、容器体Ａ内が負圧化して、該容器体Ａ内には外気導入路10を通じて外気が吸入される。ただし、この外気導入路10は、トリガー９の操作でポンプピストン22が押し込まれたときに開通して外気を導入し、外気導入溝16を通じて容器体Ａ内へと供給する。
【００１４】
ところで、深い前倒姿勢乃至倒立姿勢の際には、前述にように、倒立流路６が働いて、容器体Ａ内ヘッド部の液体が流路口７から倒立流路６を経て正立流路５へと流入し、ポンプ本体１に吸い込まれて、該ポンプ本体のノズル23から噴出されるが、その容器体Ａ内ヘッド部の液体中には外気導入路10を通じて導入された外気が気泡となって浮上し、流路口７の近くを通過するが、このとき流路口７を覆っているエア排除筒11が流路口７へ侵入するのを阻止する。
【００１５】
【発明の効果】
請求項１乃至請求項５の各発明によれば、吸込流路自動切替装置３の外側に下端開放のエア排除筒11を被着させて、流路口７を液通可能に覆っているので、深い前倒姿勢乃至倒立姿勢で、倒立流路６を働かせて使用した際にも、外気導入路10から容器体Ａ内ヘッド部の液体中へと流入した外気が流路口７に侵入するようなことはなく、したがって、ノズル23からの液体の噴出に悪影響が及ぶことはなく、常に良好な噴出を得ることができる。
【００１６】
加えて、請求項２の発明によれば、吸込流路自動切替装置３の流路切替手段８として、倒立姿勢にて流路口７から倒立流路６に流入する液体を正立流路５へと自然流入させる構造とし、かつ、その倒立流路６内に専ら正立姿勢で自動閉弁する流路制御弁12を装備させているので、吸込流路自動切替装置３には一つの流路制御弁12を設ければ足り、従来にように二つの流路制御弁を要しないから、構造を簡潔にすることができ、製作を容易にすることができて、コストを低減できる。
【００１７】
請求項３の発明によれば、流路口７を吸込流路自動切替装置３の前面に設け、吸込流路自動切替装置３及びエア排除筒11をともに前方へと傾斜させているので、吸上パイプ４の下端及び倒立流路６の流路口７を前方へと寄せることができ、容器体Ａ内の液体が少量になったときにも、横倒しの際にはその吸上パイプ４を用いて、また、深い前倒姿勢の際には倒立流路６を用いて、その液体を十分にポンプ本体１へと吸い込ませることができる。
【００１８】
請求項４、請求項５の発明によれば、吸込流路自動切替装置３として、底壁14から前面に外気導入溝16を有する外嵌合筒15と下端を開放した内嵌合筒17とを立設して成る基筒部13を設け、その外嵌合筒15をポンプ本体１の下端部18の内周へと嵌合連結させるとともに、内嵌合筒17をポンプ本体１の吸込口２へと嵌合連結させ、基筒部13の底壁14から内嵌合筒17へと開通させてエア排除筒11を一体に垂設し、該エア排除筒内に上述の正立流路５、倒立流路６及び流路制御弁12を有する中子19を嵌合させているから、吸込流路自動切替装置３乃至エア排除筒11を３部材の嵌合又は遊挿で簡潔に構成でき、その組み立ては容易であり、安価に提供できる。また、中子19の下端から吸上パイプ４を垂設しているので、該吸上パイプと正立流路５の連繋も簡潔かつ容易にすることができる。
【００１９】
更に、請求項５の発明によれば、吸込流路自動切替装置３の流路口７を前面に設け、また、請求項４の吸込流路自動切替装置３にあって、基筒部13の底壁14を前高後低に傾斜させることで、吸込流路自動切替装置３及びエア排除筒11をともに前方へと傾斜させているので、それらの前方への傾斜を簡単かつ的確に得ることができ、この傾斜についての設計も製作も頗る容易である。
【図面の簡単な説明】
【図１】 本発明に係る実施の形態を示す截断側面図である。
【図２】 同要部の下面図である。
【図３】 同要部部材の前方の側から見た斜視図である。
【図４】 同要部部材の後方の側から見た斜視図である。
【符号の説明】
Ａ…トリガー式正倒立両用ポンプ Ｂ…容器体
Ba…口頸部
１…ポンプ本体 ２…吸込口
３…吸込流路自動切替装置 ４…吸上パイプ
５…正立流路 ６…倒立流路
７…流路口 ８…流路切替手段
９…トリガー 10…外気導入路
11…エア排除筒 12…流路制御弁
13…基筒部 14…底壁
15…外嵌合筒 16…外気導入溝
17…内嵌合筒 18…下端部
19…中子 20…装着筒
21…ポンプシリンダ 22…ポンプピストン
23…ノズル 24…吸込弁
25…吐出弁 26…透孔
27…嵌合垂筒[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a right / left inverted pump.
[0002]
[Prior art]
The trigger type inverted pump is equipped with a suction channel automatic switching device that switches between an upright channel and an inverted channel at the suction port of the pump body, and a suction pipe is connected to the upright channel side to connect the suction channel. The pipe is extended to the lower part of the container body, and the inverted flow path is opened to the head part of the container body. Moreover, in order to prevent the negative pressure in the container body due to the ejection of the liquid, an outside air introduction path that opens by pulling a trigger on the pump body is provided.
This trigger type upside-down dual-use pump is used by being attached to the mouth and neck of the container body containing the liquid.At the time of erecting, the suction flow path automatic switching device opens only the erect flow path. By operating the trigger to operate the pump body, the liquid in the container is sucked into the pump body through the suction pipe and ejected from the nozzle. In addition, at the time of inversion, the suction channel automatic switching device opens only the inversion channel, so that the pump body is operated by operating the trigger, so that the liquid that has entered the head of the container in the inversion is inverted. It is sucked into the pump body through the passage and ejected from the nozzle. Whenever the trigger is operated, the outside air introduction path is opened, the outside air flows into the container body, and negative pressure in the container body due to the ejection of liquid is prevented.
[0003]
[Problems to be solved by the invention]
However, in this type of trigger type inverted pump, the outside air for preventing negative pressure introduced at the time of inversion enters into the liquid that has entered the head of the container in an inverted posture, and this is It enters the inverted flow path where the liquid only should be sucked and deteriorates the state of ejection from the nozzle.
Therefore, the present invention prevents such air intrusion into the pump body at the time of inversion, prevents deterioration of the ejection state from the nozzle, and also tries to simplify the suction flow path automatic switching device. To do.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the invention of claim 1 connects the suction pipe 4 to the suction port 2 of the pump body 1 via the suction flow path automatic switching device 3, and the suction flow path automatic switching device 3 includes: An upright flow path 5 that connects the suction pipe 4 to the suction port 2 and an inverted flow path 6 that has a flow path port 7 at a suitable place on the peripheral surface of the apparatus and communicates with the suction port 2. In addition, a flow path switching means 8 that automatically switches both flow paths 5 and 6 in accordance with the posture is provided, and a trigger 9 is pulled on the pump body 1 to open the container body B from the outside. In the front-reverse dual-purpose pump in which the outside air introduction path 10 is formed, the air outlet cylinder 11 with the lower end opened is attached to the outside of the suction flow path automatic switching device 3 to cover the flow path port 7 so that liquid can pass therethrough. Features.
[0005]
According to a second aspect of the present invention, there is provided the dual pump according to the first aspect, wherein as the flow path switching means 8, the liquid flowing into the inverted flow path 6 from the flow path port 7 in the inverted posture is supplied to the upright flow. It is structured so as to naturally flow into the passage 5 and is provided with a flow path control valve 12 that automatically closes in an upright position in the inverted flow path 6.
[0006]
According to a third aspect of the present invention, there is provided the dual inverted pump according to the first or second aspect, wherein the flow path port 7 is provided in front of the suction flow path automatic switching device 3, and the suction flow path automatic switching device and the Both the air exclusion cylinders 11 are inclined forward.
[0007]
According to a fourth aspect of the present invention, there is provided the upside-down dual-use pump according to the second or third aspect, wherein the suction pipe automatic switching device 3 has an external fitting cylinder 15 having an external air introduction groove 16 from the bottom wall 14 to the front surface. And an inner fitting cylinder 17 having an open lower end, and a base cylinder portion 13 is provided, and the outer fitting cylinder 15 is fitted and connected to the inner periphery of the lower end portion 18 of the pump body 1. The inner fitting cylinder 17 is fitted and connected to the suction port 2 of the pump main body 1 and is opened from the bottom wall 14 of the base cylinder portion 12 to the inner fitting cylinder 17 so that the air exclusion cylinder is opened. 11 is vertically suspended, and the core 19 having the above-described upright flow path 5, the inverted flow path 6 and the flow path control valve 12 is fitted into the air exhaust cylinder, and the suction pipe is inserted from the lower end of the core. The upper pipe 4 is provided vertically.
[0008]
According to a fifth aspect of the present invention, there is provided the dual pump according to the fourth aspect, wherein the flow passage port 7 is provided in front of the suction flow passage automatic switching device 3 and the bottom wall 14 of the base tube portion 13 is provided in front. Both the suction flow path automatic switching device 3 and the air evacuation cylinder 11 are tilted forward by inclining to high and low.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The drawings show an embodiment of a normal inverted pump according to the present invention.
In the figure, A is a trigger type upside-down pump, and B is a container body to which the trigger type upside-down pump is mounted, both of which are made of synthetic resin.
[0010]
In the trigger type inverted pump A, the suction pipe 4 is fitted and connected to the suction port 2 of the pump body 1 for the inverted pump via the suction channel automatic switching device 3, and the suction channel automatic switching device 3 Around the mouth and neck Ba of the container body B is detachably screwed by a mounting cylinder 20 which is arranged around and is rotatably mounted on the lower end portion 18 of the pump body 1, and the lower end of the suction pipe 4 is connected to the container body B. It extends to the inner bottom corner.
The pump body 1 has a trigger 9 suspended from the front so as to be movable back and forth, a pump cylinder 21 is disposed behind the trigger forward, and a pump piston slidably fitted in the pump cylinder. 22 is made to slide in and out in the middle of the trigger. 23 is a nozzle provided at the front end of the pump body 1, 24 is a suction valve interposed in the flow path between the suction port 2 and the pump cylinder 21, and 25 is a flow path between the pump cylinder 21 and the nozzle 23. Is a discharge valve interposed between the two.
In the lower part of the pump cylinder 21, an outside air introduction path 10 that opens from the outside into the container body B by pulling the trigger 9, that is, in the lower part of the pump cylinder 21, is closed by the pump piston 22 in the exit state, By forming a through hole 26 opened by the pump piston, an outside air introduction path 10 communicating from the front part in the pump cylinder is formed.
[0011]
The suction channel automatic switching device 3 has an upright channel 5 in which the suction pipe 4 communicates with the suction port 2, and a channel port 7 that opens to the head in the container at the front of the device. Inverted flow path 6 communicated with suction port 2 is provided, and flow path switching means 8 is provided for automatically switching both flow paths 5 and 6 in accordance with the posture. An air-exclusion cylinder 11 having an open lower end is attached to the outside of 3 to cover the flow path port 7 so that liquid can pass therethrough.
The flow path switching means 8 has a structure in which the liquid flowing into the inverted flow path 6 from the flow path port 7 in the inverted posture naturally flows into the upright flow path 5, and is exclusively in the inverted flow path 6. A flow path control valve 12 comprising a ball valve that automatically closes in an upright position and a tapered valve seat is provided. However, the flow path control valve is opened in a state that does not adversely affect the natural inflow in the inverted posture.
[0012]
Further, in the suction flow path automatic switching device 3, an outer fitting cylinder 15 having an outside air introduction groove 16 on the front surface from the bottom wall 14 and an inner fitting cylinder 17 having an open lower end are erected so that the base cylinder portion 13 is provided. The outer fitting cylinder 15 is fitted and connected to the inner periphery of the lower end portion 18 of the pump body 1, and the inner fitting cylinder 17 is fitted and connected to the suction port 2 of the pump body 1. The air exclusion cylinder 11 is vertically suspended from the bottom wall 14 of the portion 12 to the inner fitting cylinder 17, and the above-described upright flow path 5, inverted flow path 6 and flow path control are provided in the air exclusion cylinder. The core 19 having the valve 12 is fitted, the upper end of the suction pipe 4 is fitted to the fitting vertical cylinder 27 provided at the lower end of the core, and the bottom wall of the base cylinder portion 13 is further suspended. By tilting 14 forward and backward, the suction flow path automatic switching device 3 and the air evacuation cylinder 11 are tilted forward, and the suction pipe 4 is also tilted forward.
[0013]
In this configuration, the liquid is stored in the container body B and the trigger type upside-down dual-use pump A is operated. First, in the upright posture, the suction flow path automatic switching device 3 uses the flow path control valve. 12 is closed by the ball valve seating on the taper valve seat, so that the liquid in the container body A passes through the suction pipe 4 and the upright flow path 5 of the suction flow path automatic switching device 3, and the pump body 1. And is ejected from the nozzle 23 of the pump body.
Further, in the case of lying down with the nozzle 23 down, the suction pipe 4 that is inclined forward allows the majority of the remaining liquid to be sucked up without any trouble even if the liquid in the container body A is low.
Next, in the deep forward position or the inverted position, the flow path control valve 12 is opened by the separation of the ball valve from the taper valve seat in the suction flow path automatic switching device 3, and accordingly, the container body A head Part of the liquid flows from the channel port 7 through the inverted channel 6 into the upright channel 5, is sucked into the pump body 1, and is ejected from the nozzle 23 of the pump body. In this inverted posture, as long as the flow path from the inverted flow path 6 to the upright flow path 5 is submerged in the liquid, the liquid in the inverted container body B naturally flows into this flow path. The air in the body B does not flow from the suction pipe 4 into the upright flow path 5.
In the deep forward posture, the channel port 7 of the inverted channel 6 is positioned below, so that the liquid in the head part is easily sucked into the pump body 1 even when the liquid in the container body A is low.
When the liquid in the container body A is sucked into the pump body 1 and ejected from the nozzle 23 in this way, the inside of the container body A becomes negative pressure, and outside air is passed through the outside air introduction path 10 into the container body A. Inhaled. However, the outside air introduction path 10 is opened when the pump piston 22 is pushed by the operation of the trigger 9 to introduce outside air, and is supplied into the container body A through the outside air introduction groove 16.
[0014]
By the way, in the case of a deep forward posture or an inverted posture, as described above, the inverted flow path 6 works, and the liquid in the head portion in the container body A passes through the inverted flow path 6 from the flow path port 7 and becomes an upright flow path. 5, is sucked into the pump body 1 and is ejected from the nozzle 23 of the pump body, but the outside air introduced through the outside air introduction path 10 is bubbled into the liquid in the head of the container body A. The air evacuation cylinder 11 covering the flow path port 7 is prevented from entering the flow path port 7 at this time.
[0015]
【The invention's effect】
According to the inventions of claims 1 to 5, the air exclusion cylinder 11 having a lower end is attached to the outside of the suction flow path automatic switching device 3, and the flow path port 7 is covered so that liquid can pass therethrough. Even when the inverted flow path 6 is used in a deep forward posture or an inverted posture, the external air that has flowed into the liquid in the head part of the container body A from the external air introduction path 10 enters the flow path port 7. Therefore, the liquid jet from the nozzle 23 is not adversely affected, and a good jet can always be obtained.
[0016]
In addition, according to the invention of claim 2, as the flow path switching means 8 of the suction flow path automatic switching device 3, the liquid flowing into the inverted flow path 6 from the flow path port 7 in the inverted posture is transferred to the upright flow path 5. And a flow control valve 12 that automatically closes in an upright position in the inverted flow path 6 is provided in the inverted flow path 6 so that the suction flow path automatic switching device 3 has one flow path. It is sufficient to provide the control valve 12, and since two flow control valves are not required as in the prior art, the structure can be simplified, the manufacturing can be facilitated, and the cost can be reduced.
[0017]
According to the third aspect of the present invention, the flow path port 7 is provided on the front surface of the suction flow path automatic switching device 3, and both the suction flow path automatic switching device 3 and the air evacuation cylinder 11 are inclined forward. The lower end of the pipe 4 and the channel port 7 of the inverted channel 6 can be moved forward, and even when the amount of liquid in the container body A becomes small, the suction pipe 4 is used when lying down. In addition, the inverted flow path 6 can be used to sufficiently suck the liquid into the pump body 1 in the deep forward-facing posture.
[0018]
According to the invention of claim 4 and claim 5, as the suction flow path automatic switching device 3, the outer fitting cylinder 15 having the outside air introduction groove 16 on the front surface from the bottom wall 14 and the inner fitting cylinder 17 having the lower end opened. Is provided, and the outer fitting cylinder 15 is fitted and connected to the inner periphery of the lower end portion 18 of the pump body 1, and the inner fitting cylinder 17 is connected to the suction port of the pump body 1. 2 is fitted and connected, and is opened from the bottom wall 14 of the base cylinder portion 13 to the inner fitting cylinder 17 so that the air exclusion cylinder 11 is integrally suspended. 5. Since the core 19 having the inverted flow path 6 and the flow path control valve 12 is fitted, the suction flow path automatic switching device 3 to the air evacuation cylinder 11 are simply configured by fitting or loose insertion of three members. It is easy to assemble and can be provided at low cost. Further, since the suction pipe 4 is suspended from the lower end of the core 19, the connection between the suction pipe and the upright flow path 5 can be simplified and facilitated.
[0019]
Furthermore, according to the invention of claim 5, the flow path port 7 of the suction flow path automatic switching device 3 is provided on the front surface, and in the suction flow path automatic switching device 3 of the claim 4, the bottom of the base tube portion 13 is provided. By inclining the wall 14 forward and backward, the suction flow path automatic switching device 3 and the air evacuation cylinder 11 are both inclined forward, so that the forward inclination thereof can be obtained easily and accurately. It is easy to design and produce this slope.
[Brief description of the drawings]
FIG. 1 is a cutaway side view showing an embodiment according to the present invention.
FIG. 2 is a bottom view of the main part.
FIG. 3 is a perspective view of the main part member as viewed from the front side.
FIG. 4 is a perspective view of the main part member as seen from the rear side.
[Explanation of symbols]
A ... Trigger type inverted pump for both sides B ... Container body
Ba ... neck portion 1 ... pump body 2 ... suction port 3 ... suction channel automatic switching device 4 ... suction pipe 5 ... upright channel 6 ... inverted channel 7 ... channel port 8 ... channel switching means 9 ... trigger 10 ... Outside air introduction path
11… Air exclusion cylinder 12… Flow path control valve
13… Base tube 14… Bottom wall
15 ... Outer fitting tube 16 ... Outside air introduction groove
17 ... Inner fitting cylinder 18 ... Lower end
19 ... Core 20 ... Installed cylinder
21 ... Pump cylinder 22 ... Pump piston
23 ... Nozzle 24 ... Suction valve
25 ... Discharge valve 26 ... Through hole
27 ... Mating barrel

Claims (5)

ポンプ本体１の吸込口２に吸込流路自動切替装置３を介して吸上パイプ４を連繋させ、その吸込流路自動切替装置３には、上記吸上パイプ４を上記吸込口２へと連通させた正立流路５と、当該装置の周面適所に流路口７を有して上記吸込口２へと連通させた倒立流路６を設けるとともに、両流路５，６を姿勢に相応して自動的に切り替える流路切替手段８を講じ、また、上記ポンプ本体１にトリガー９を引くことで外部から容器体Ｂ内へと開通する外気導入路10を形成した正倒立両用ポンプにおいて、上記吸込流路自動切替装置３の外側に下端開放のエア排除筒11を被着させて、上記流路口７を液通可能に覆ったことを特徴とする正倒立両用ポンプ。A suction pipe 4 is connected to the suction port 2 of the pump body 1 via a suction flow path automatic switching device 3, and the suction pipe 4 is connected to the suction port 2 in the suction flow path automatic switching device 3. An upright flow path 5 is provided, and an inverted flow path 6 having a flow path port 7 at an appropriate place on the peripheral surface of the apparatus and communicating with the suction port 2 is provided. In the forward and reverse dual-use pump in which an outside air introduction path 10 that opens from the outside into the container body B by pulling the trigger 9 in the pump body 1 is provided. An upside-down dual-purpose pump characterized in that an air exclusion cylinder 11 having an open lower end is attached to the outside of the suction flow path automatic switching device 3 to cover the flow path port 7 so that liquid can pass therethrough. 上記流路切替手段８として、倒立姿勢にて上記流路口７から上記倒立流路６に流入する液体を上記正立流路５へと自然流入させる構造とし、かつ、その倒立流路６内に専ら正立姿勢で自動閉弁する流路制御弁12を装備させた請求項１記載の正倒立両用ポンプ。The flow path switching means 8 has a structure in which the liquid flowing into the inverted flow path 6 from the flow path port 7 in the inverted posture is allowed to naturally flow into the upright flow path 5, and the inverted flow path 6 2. The upside-down dual-purpose pump according to claim 1, further comprising a flow path control valve that automatically closes in an upright posture. 上記流路口７を上記吸込流路自動切替装置３の前面に設け、該吸込流路自動切替装置及び上記エア排除筒11をともに前方へと傾斜させた請求項１又は請求項２記載の正倒立両用ポンプ。3. The normal inversion according to claim 1 or 2, wherein the flow path port 7 is provided in front of the suction flow path automatic switching device 3, and both the suction flow path automatic switching device and the air exclusion cylinder 11 are inclined forward. Dual-use pump. 上記吸込流路自動切替装置３として、底壁14から前面に外気導入溝16を有する外嵌合筒15と下端を開放した内嵌合筒17とを立設して成る基筒部13を設けて、その外嵌合筒15を上記ポンプ本体１の下端部18の内周へと嵌合連結させるとともに、その内嵌合筒17を上記ポンプ本体１の吸込口２へと嵌合連結させ、そして、その基筒部13の底壁14から上記内嵌合筒17へと開通させて上記エア排除筒11を一体に垂設し、該エア排除筒内に上述の正立流路５、倒立流路６及び流路制御弁12を有する中子19を嵌合させ、該中子の下端から上記吸上パイプ４を垂設した請求項２又は請求項３記載の正倒立両用ポンプ。As the suction flow path automatic switching device 3, a base cylinder portion 13 is provided, which comprises an outer fitting cylinder 15 having an outside air introduction groove 16 on the front surface from the bottom wall 14 and an inner fitting cylinder 17 having an open lower end. Then, the outer fitting cylinder 15 is fitted and connected to the inner periphery of the lower end portion 18 of the pump body 1, and the inner fitting cylinder 17 is fitted and connected to the suction port 2 of the pump body 1, Then, the air exclusion cylinder 11 is vertically suspended from the bottom wall 14 of the base cylinder portion 13 to the inner fitting cylinder 17, and the above-described upright flow path 5 and the inverted channel are inverted in the air exclusion cylinder. The forward and reverse dual-use pump according to claim 2 or 3, wherein a core 19 having a flow path 6 and a flow path control valve 12 is fitted, and the suction pipe 4 is suspended from the lower end of the core. 上記流路口７を上記吸込流路自動切替装置３の前面に設け、また、上記基筒部13の底壁14を前高後低に傾斜させることで、上記吸込流路自動切替装置３及び上記エア排除筒11をともに前方へと傾斜させた請求項４記載の正倒立両用ポンプ。The flow path port 7 is provided on the front surface of the suction flow path automatic switching device 3, and the bottom wall 14 of the base cylinder portion 13 is inclined to a front height and a low level so that the suction flow path automatic switching device 3 and the above 5. The upside-down dual-purpose pump according to claim 4, wherein both the air exclusion cylinders 11 are inclined forward.
JP33862398A 1998-11-30 1998-11-30 Normal inverted pump Expired - Fee Related JP3771068B2 (en)

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Application Number Priority Date Filing Date Title
JP33862398A JP3771068B2 (en) 1998-11-30 1998-11-30 Normal inverted pump

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JP2000161206A JP2000161206A (en) 2000-06-13
JP3771068B2 true JP3771068B2 (en) 2006-04-26

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