JP2012047058A - Electromagnetic pump - Google Patents

Electromagnetic pump Download PDF

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JP2012047058A
JP2012047058A JP2010187196A JP2010187196A JP2012047058A JP 2012047058 A JP2012047058 A JP 2012047058A JP 2010187196 A JP2010187196 A JP 2010187196A JP 2010187196 A JP2010187196 A JP 2010187196A JP 2012047058 A JP2012047058 A JP 2012047058A
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iron core
movable iron
check valve
electromagnetic pump
discharge port
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JP5640560B2 (en
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Masao Yoshida
雅雄 吉田
Yukihiro Shoji
幸広 庄司
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Nachi Fujikoshi Corp
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Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic pump that mechanically facilitates adjustment of a discharge amount by adjusting the stroke of a movable iron core while arranging an inlet port and a discharge port on the same side.SOLUTION: The electromagnetic pump 10 is configured such that the positions of a fluid inlet port 19 and a fluid discharge port 20 are arranged on one side of a movable iron core 28. An adjusting screw 30 and a nut member 31 respectively for adjusting the stroke S of the movable iron core 28 are arranged on the opposite side facing the positions of the inlet port 19 and the discharge port 20. Therefore, it prevents a fluid flow-path from communicating with the center of the movable iron core 28, thereby increasing a degree of freedom of arrangement of the inlet port 19 and the discharge port 20.

Description

本発明は、電磁ポンプに関し、さらに詳細には外部から容量を調整することが可能な電磁ポンプに関する。   The present invention relates to an electromagnetic pump, and more particularly to an electromagnetic pump whose capacity can be adjusted from the outside.

従来、この種の電磁ポンプは電磁コイルに流す電流のＯＮ−ＯＦＦを繰り返すことにより、プランジャが往復動し、流体を（ＩＮ）から吸い、（ＯＵＴ）から吐出する構造である。   Conventionally, this type of electromagnetic pump has a structure in which a plunger reciprocates by repeatedly turning on and off a current flowing through an electromagnetic coil, and sucks fluid from (IN) and discharges it from (OUT).

例えば、図３に示すように電磁ポンプ４０は電磁コイル４１の内側４１ｂに臨入され該電磁コイル４１の一端側に配設されたヨーク４２と、ヨーク４２に対向して前記電磁コイル４１の他端側より内側４１ｃに臨入された固定鉄心４３と、を備える。固定鉄心４３は、一側に電磁コイル４１の他端側に係合する鍔部４３ａと、該電磁コイル４１の内側４１ｃに嵌挿された中央部４３ｂと、他側に側壁部４３ｃと、を備える。前記中央部４３ｂは横断面凹状を有し、側壁部４３ｃに出口穴４３ｄを有する出口シート４４が形成されている。   For example, as shown in FIG. 3, the electromagnetic pump 40 is inserted into the inner side 41 b of the electromagnetic coil 41 and disposed on one end side of the electromagnetic coil 41, and the other side of the electromagnetic coil 41 facing the yoke 42. And a fixed iron core 43 inserted into the inner side 41c from the end side. The fixed iron core 43 has a flange 43a that engages with the other end of the electromagnetic coil 41 on one side, a central portion 43b that is fitted into the inner side 41c of the electromagnetic coil 41, and a side wall 43c on the other side. Prepare. The central portion 43b has a concave cross section, and an outlet sheet 44 having an outlet hole 43d is formed in the side wall portion 43c.

固定鉄心４３の中央部４３ｂには、吐出側本体４５の円筒部４５ａが嵌合されており、該吐出側本体４５の鍔部４５ｂを固定鉄心４３の鍔部４３ａとコイルケース４６の一端部４６ａとで加締め挟持することにより吐出側本体４５を固定鉄心４３に固定している。
前記吐出側本体４５には、軸心方向に貫通する貫通孔４５ｃが穿設され、該貫通孔４５ｃの一端にノズルを形成する２個の吐出口４７が設けられている。 A cylindrical portion 45 a of the discharge side main body 45 is fitted into the central portion 43 b of the fixed iron core 43, and the flange portion 45 b of the discharge side main body 45 is connected to the flange portion 43 a of the fixed iron core 43 and one end portion 46 a of the coil case 46. The discharge side main body 45 is fixed to the fixed iron core 43 by crimping.
The discharge side main body 45 is provided with a through hole 45c penetrating in the axial direction, and two discharge ports 47 forming nozzles are provided at one end of the through hole 45c.

吐出側本体４５の段付貫通孔４５ｃに嵌挿されたばね部材４８は、一端を段付貫通孔４５ｃの段部４９ａに係合し、他端を出口ボール５０に当接させており、該ばね部材４８の弾発力により出口ボール５０を軸心方向に付勢して、出口ボール５０を出口シート４４に押圧するように機能する。この場合、ばね部材４８、出口ボール５０、出口シート４４により一側（図３で下端）から他端（図３で上端）へのみ液体を通過させる出口逆止弁５１が形成される。   The spring member 48 fitted into the stepped through hole 45c of the discharge side main body 45 has one end engaged with the stepped portion 49a of the stepped through hole 45c and the other end abutted against the outlet ball 50. The outlet ball 50 is urged in the axial direction by the elastic force of the member 48 and functions to press the outlet ball 50 against the outlet seat 44. In this case, an outlet check valve 51 that allows liquid to pass only from one side (lower end in FIG. 3) to the other end (upper end in FIG. 3) is formed by the spring member 48, the outlet ball 50, and the outlet seat 44.

ヨーク４２に当接固定された中央貫通穴５２ｄを有するストッパー５２と固定鉄心４３との間には、軸心方向に往復運動可能に可動鉄心（プランジャ）５３が設けられている。
前記ストッパー５２には、吸入口５８が設けられた吸入側本体５９が当接して設けられている。
前記可動鉄心５３には、一側に入口シート５４を有する入口穴５３ｄが設けられ、他側が開口している。可動鉄心５３の内孔５３ａには、ばね部材（第２のばね部材）５５及び入口ボール５６が内装されている。前記ばね部材５５は、一端が固定鉄心４３の側壁部４３ｃの外端面に当接されており、他端が可動鉄心５３の内孔５３ａの内方端面に係合されている。前記入口ボール５６は、前記ばね部材５５の内方に遊挿されている。よって、入口ボール５６はばね部材５５の内方において撓み方向に沿って移動自在に配設されている。さらに、可動鉄心５３は、電磁コイル４１の非励磁時にばね部材５５の弾発力により該ばね部材５５及び入口ボール５６を入口シート５４に押圧されている。
この場合、ばね部材５５、入口ボール５６及び入口シート５４より他側（図３で下端）から一側（図３で上端）へのみ液体を通過させる入口逆止弁５７が形成される。
電磁ポンプ４０は、電磁コイル４１のＯＮ−ＯＦＦの繰り返しにより可動鉄心５３を軸心方向に往復動させ、入口逆止弁５７側から液体が吸入され、出口逆止弁５１から吐出され、吐出口４７を介して吐出される（例えば、特許文献１参照。）。 A movable iron core (plunger) 53 is provided between the stopper 52 having a central through hole 52d fixed in contact with the yoke 42 and the fixed iron core 43 so as to be capable of reciprocating in the axial direction.
The stopper 52 is provided with a suction side main body 59 provided with a suction port 58 in contact therewith.
The movable iron core 53 is provided with an inlet hole 53d having an inlet sheet 54 on one side and opened on the other side. A spring member (second spring member) 55 and an entrance ball 56 are housed in the inner hole 53 a of the movable iron core 53. One end of the spring member 55 is in contact with the outer end surface of the side wall 43 c of the fixed iron core 43, and the other end is engaged with the inner end surface of the inner hole 53 a of the movable iron core 53. The entrance ball 56 is loosely inserted inward of the spring member 55. Therefore, the inlet ball 56 is disposed in the spring member 55 so as to be movable along the bending direction. Further, the movable iron core 53 presses the spring member 55 and the entrance ball 56 against the entrance sheet 54 by the elastic force of the spring member 55 when the electromagnetic coil 41 is not excited.
In this case, an inlet check valve 57 that allows the liquid to pass only from the other side (lower end in FIG. 3) to one side (upper end in FIG. 3) from the spring member 55, the inlet ball 56, and the inlet seat 54 is formed.
The electromagnetic pump 40 reciprocates the movable iron core 53 in the axial direction by repeating ON-OFF of the electromagnetic coil 41, and liquid is sucked from the inlet check valve 57 side, discharged from the outlet check valve 51, and discharged from the outlet. 47 (see, for example, Patent Document 1).

特開２００５−２５８０８８号公報Japanese Patent Laid-Open No. 2005-258088

しかしながら、特許文献１では電磁コイルのＯＮ−ＯＦＦの１回で吐出量Ｑは、可動鉄心の寸法と該可動鉄心の移動量で決定される。
従って、複数個の容量の個体差を小さくするためには、可動鉄心の直径と該可動鉄心のストローク寸法の精度を上げる必要がある。特に、ストローク寸法は複数部品の寸法のばらつきの累積となるため、個々の部品は非常に高精度に仕上る必要がある。
本発明は、係る課題を解決するためになされたもので、吸入口（ＩＮ）と吐出口（ＯＵＴ）を可動鉄心の同一側に配置して可動鉄心のストロークの調整を容易に出来るようにした電磁ポンプを提供することを目的とする。 However, in Patent Document 1, the discharge amount Q is determined by the size of the movable iron core and the amount of movement of the movable iron core once the electromagnetic coil is turned on and off.
Therefore, in order to reduce the individual difference between the plurality of capacities, it is necessary to improve the accuracy of the diameter of the movable core and the stroke dimension of the movable core. In particular, since the stroke dimension is a cumulative variation of the dimensions of a plurality of parts, each part needs to be finished with very high accuracy.
The present invention has been made to solve such problems, and the suction port (IN) and the discharge port (OUT) are arranged on the same side of the movable core so that the stroke of the movable core can be easily adjusted. An object is to provide an electromagnetic pump.

前記の課題を解決するために、本発明の請求項１は、
円筒形状のボディと、
前記ボディに嵌挿されソレノイドを形成する円筒形状のコイルと、
前記コイルの内側に設けられ鍔部が前記コイルの一側に係合する円筒形状のヨークと、
前記ヨークの円筒部の内側に摺動可能に嵌挿され一側に開口する凹形状の可動鉄心と、
前記可動鉄心に対向して前コイルに内側に設けられ一側に開口する凹部を形成する固定鉄心と、
前記ボディに取り付けられ前記ボディの軸心方向に対して直交して同一線上で対向して設けられた吸入口及び吐出口を有するポンプ本体と、
前記ポンプ本体に形成され前記吸入口に連通する貫通孔に設けた入口逆止弁と、
前記ポンプ本体に形成され前記吐出口に連通する貫通孔に設けた出口逆止弁と、
前記ボディに取り付けられ前記可動鉄心を押圧して該可動鉄心のストロークを規制する調整機構と、
を備え、
前記可動鉄心及び前記ポンプ本体は前記固定鉄心を挿んで対向して配設され、前記可動鉄心及び前記調整機構は隣接して設けられたことを特徴とする。
本発明によれば、流体の流路を可動鉄心の中心に連通しないようにしたことで、吸入口及び吐出口の配置の自由度が広がった。
さらに、電磁ポンプを構成する部品の累積寸法誤差をキャンセルできる構造にすることにより、可動鉄心のストロークＳの精度を向上させることができる。 In order to solve the above-mentioned problem, claim 1 of the present invention provides:
A cylindrical body;
A cylindrical coil that is inserted into the body to form a solenoid;
A cylindrical yoke provided on the inner side of the coil and having a flange engaged with one side of the coil;
A concave movable iron core that is slidably inserted inside the cylindrical portion of the yoke and opens to one side;
A fixed iron core that forms a concave portion that is provided on the inner side of the front coil and opens to one side facing the movable iron core,
A pump body having a suction port and a discharge port, which are attached to the body and provided to face each other on the same line perpendicular to the axial direction of the body;
An inlet check valve provided in a through hole formed in the pump body and communicating with the suction port;
An outlet check valve provided in a through hole formed in the pump body and communicating with the discharge port;
An adjustment mechanism that is attached to the body and presses the movable core to restrict the stroke of the movable core;
With
The movable iron core and the pump main body are arranged to face each other with the fixed iron core inserted, and the movable iron core and the adjustment mechanism are provided adjacent to each other.
According to the present invention, since the fluid flow path is not communicated with the center of the movable iron core, the degree of freedom of arrangement of the suction port and the discharge port is expanded.
Furthermore, the accuracy of the stroke S of the movable iron core can be improved by adopting a structure capable of canceling the cumulative dimensional error of the parts constituting the electromagnetic pump.

請求項２は、前記固定鉄心の鍔部にはリテーナにより凹部が形成され該凹部に前記吸入口及び前記吐出口が前記貫通孔、前記入口逆止弁及び出口逆止弁を介して連通しているので、前記吸入口及び前記吐出口が共に一側に設けられているので、電磁ポンプの形状をコンパクトにすることができ、好適である。   According to a second aspect of the present invention, a recess is formed in the flange portion of the fixed iron core by a retainer, and the suction port and the discharge port communicate with the recess through the through hole, the inlet check valve, and the outlet check valve. Therefore, since both the suction port and the discharge port are provided on one side, the shape of the electromagnetic pump can be made compact, which is preferable.

請求項３では、前記入口逆止弁及び前記出口貫通孔に設けられたばね部材と、前記ばね部材の弾発力により押圧されるボール部材と、を備えるので、構造が簡素にすることができる。   According to the third aspect of the present invention, since the spring member provided in the inlet check valve and the outlet through hole and the ball member pressed by the elastic force of the spring member are provided, the structure can be simplified.

請求項４では、前記調整機構は、前記ボディに取り付けられたボス部に螺着し前記可動鉄心に係合するねじ部材と、前記ねじ部材に螺合し前記ボス部に固締されるナット部材と、を備えているので、構造が簡単でよい。   5. The adjustment mechanism according to claim 4, wherein the adjustment mechanism includes a screw member that is screwed into a boss portion attached to the body and engages the movable iron core, and a nut member that is screwed into the screw member and fixed to the boss portion. Therefore, the structure may be simple.

本発明は、吸入口及び吐出口の配置の自由度が広がり、電磁ポンプを構成する部品の累積寸法誤差をキャンセルできる構造にすることにより、可動鉄心のストロークＳの精度を向上させることができる。   According to the present invention, the degree of freedom of the arrangement of the suction port and the discharge port is widened, and the accuracy of the stroke S of the movable iron core can be improved by adopting a structure that can cancel the accumulated dimensional error of the parts constituting the electromagnetic pump.

本発明の実施の形態に係る電磁ポンプの概略構造図である。1 is a schematic structural diagram of an electromagnetic pump according to an embodiment of the present invention. 本発明の実施の形態に係る電磁ポンプの動作説明図である。It is operation | movement explanatory drawing of the electromagnetic pump which concerns on embodiment of this invention. 従来の電磁ポンプの概略構造図である。It is a schematic structure figure of the conventional electromagnetic pump.

以下、本発明に係る電磁ポンプにつき好適の実施の形態を挙げ、添付図面を参照して詳細に説明する。
図１は、本発明の実施の形態に係る電磁ポンプ１０の概略構造図である。
図１に示す電磁ポンプ１０は、円筒形状のボディ１１と、該ボディ１１の一端（図１で上端）に螺着されたボス部１２と、ボディ１１の他側（図１で下端）に螺着されたポンプ本体１３と、を備える。 Preferred embodiments of the electromagnetic pump according to the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of an electromagnetic pump 10 according to an embodiment of the present invention.
An electromagnetic pump 10 shown in FIG. 1 includes a cylindrical body 11, a boss portion 12 screwed to one end of the body 11 (upper end in FIG. 1), and a screw on the other side of the body 11 (lower end in FIG. 1). And a worn pump body 13.

さらに、電磁ポンプ１０はボディ１１に内装された電磁コイル（コイル）１４と、該電磁コイル１４の内側１４ａに臨入され該電磁コイル１４の一端側（図１で上端側）に配設されたヨーク１５と、該ヨーク１５に対向して前記電磁コイル１４の他端側（図１で下端側）より内側１４ａに臨入された固定鉄心１６と、を備える。
ヨーク１５は、一側に電磁コイル１４の一端側に係合する鍔部１５ａと、該電磁コイル１４の内側１４ａに嵌挿された中央部１５ｂと、を備える。前記中央部１５ｂは円筒形状を有している。ボス部１２の下面とヨーク１５の鍔部１５ａ、並びに鍔部１５ａの下面と電磁コイル１４の鍔部１４ｃは、Oリング部材を介して液密にシールされている。 Further, the electromagnetic pump 10 is disposed on one end side (the upper end side in FIG. 1) of the electromagnetic coil 14 that enters the inner side 14a of the electromagnetic coil 14 and the electromagnetic coil (coil) 14 built in the body 11. A yoke 15 and a fixed iron core 16 that is opposed to the yoke 15 and enters the inner side 14a from the other end side (the lower end side in FIG. 1) of the electromagnetic coil 14 are provided.
The yoke 15 includes, on one side, a flange portion 15a that engages with one end side of the electromagnetic coil 14, and a central portion 15b that is fitted and inserted into the inner side 14a of the electromagnetic coil 14. The central portion 15b has a cylindrical shape. The lower surface of the boss portion 12 and the flange portion 15a of the yoke 15, and the lower surface of the flange portion 15a and the flange portion 14c of the electromagnetic coil 14 are liquid-tightly sealed through an O-ring member.

固定鉄心１６は、一側に電磁コイル１４の他端側（図１で下端側）に係合する鍔部１６ａと、該電磁コイル１４の内側１４ａに嵌挿された円筒部１６ｂと、該円筒部１６ｂに穿設された連通孔１７と、を備える。
ポンプ本体１３の内端面１３ａと固定鉄心１６との下面との間には、リテーナ１８が挿設されおり、内端面１３ａとリテーナ１８の下面、該リテーナ１８の上面と固定鉄心１６の下面は、Oリング部材を介して液密にシールされている。前記リテーナ１８は入口逆止弁２４及び出口逆止弁２７を構成する部品をポンプ本体１３から飛び出さないように上から押さえている。 The fixed iron core 16 has, on one side, a flange portion 16a that engages with the other end side (the lower end side in FIG. 1) of the electromagnetic coil 14, a cylindrical portion 16b that is fitted into the inner side 14a of the electromagnetic coil 14, and the cylinder. And a communication hole 17 formed in the portion 16b.
A retainer 18 is inserted between the inner end surface 13a of the pump body 13 and the lower surface of the fixed iron core 16. The inner end surface 13a and the lower surface of the retainer 18, the upper surface of the retainer 18 and the lower surface of the fixed iron core 16 are Liquid-tightly sealed through an O-ring member. The retainer 18 presses the components constituting the inlet check valve 24 and the outlet check valve 27 from above so as not to jump out of the pump body 13.

ポンプ本体１３は、流体の吸入口１９と、流体の吐出口２０が形成されている。吸入口１９は、該吸入口１９に連通する吸入路２１がリテーナ１８に穿設された穴１８Ａａより固定鉄心１６の下面に形成された流体の貯留部である凹部２２に連通している。
一方、吐出口２０は、該吐出口２０に連通する吐出路２３がリテーナ１８に穿設された穴１８ｂより固定鉄心１６の下面に形成された流体の貯留部である凹部２２に連通している。 The pump body 13 is formed with a fluid inlet 19 and a fluid outlet 20. The suction port 19 communicates with a recess 22 which is a fluid storage portion formed on the lower surface of the fixed iron core 16 through a hole 18 </ b> Aa formed in the retainer 18 with a suction passage 21 communicating with the suction port 19.
On the other hand, the discharge port 20 communicates with a recess 22, which is a fluid storage portion formed on the lower surface of the fixed iron core 16, through a hole 18 b formed in the retainer 18 with a discharge path 23 communicating with the discharge port 20. .

吸入路２１の途中には、ポンプ本体１３に設けられた入口逆止弁２４が配設されている。入口逆止弁２４は、ばね部材２５、ボール部材２６より構成され、吸入口１９より流入する流体を固定鉄心１６の凹部２２側のみ通過させる機能を有する。
吐出路２３の途中には、ポンプ本体１３に設けられた出口逆止弁２７が配設されている。出口逆止弁２７は、ばね部材２５、ボール部材２６より構成され、吐出路２３より吐出する流体を吐出口２０側のみ通過させる機能を有する。 An inlet check valve 24 provided in the pump body 13 is disposed in the suction path 21. The inlet check valve 24 includes a spring member 25 and a ball member 26 and has a function of allowing the fluid flowing from the suction port 19 to pass only through the concave portion 22 side of the fixed iron core 16.
In the middle of the discharge passage 23, an outlet check valve 27 provided in the pump body 13 is disposed. The outlet check valve 27 includes a spring member 25 and a ball member 26, and has a function of allowing the fluid discharged from the discharge passage 23 to pass only on the discharge port 20 side.

参照符号２８はヨーク１５の内孔１５ｃに摺動自在に嵌挿された可動鉄心で、該可動鉄心２８と下面２８ｂと固定鉄心１６の上面１６ｃとの間にはばね部材２９が介挿されており、該ばね部材２９の弾発力により可動鉄心２８を図１で上方に移動させるようにしている。
参照符号３０はボス部１２に螺着された調整ねじで、先端が可動鉄心２８の上面２８aに当接しており、該調整ねじ３０（調整機構）の上下方向の移動により可動鉄心２８のストロークＳを適宜、調整可能にしており、調整ねじ３０に螺合するナット部材３１（調整機構）をボス部１２に締め付けて可動鉄心２８の位置を決定している。 Reference numeral 28 denotes a movable iron core slidably fitted into the inner hole 15 c of the yoke 15, and a spring member 29 is interposed between the movable iron core 28, the lower surface 28 b and the upper surface 16 c of the fixed iron core 16. The movable iron core 28 is moved upward in FIG. 1 by the elastic force of the spring member 29.
Reference numeral 30 is an adjustment screw screwed to the boss portion 12, the tip of which is in contact with the upper surface 28 a of the movable iron core 28, and the stroke S of the movable iron core 28 by the vertical movement of the adjustment screw 30 (adjustment mechanism). The position of the movable iron core 28 is determined by tightening a nut member 31 (adjustment mechanism) screwed to the adjustment screw 30 to the boss portion 12.

図１に示すように、電磁ポンプ１０は流体の吸入口１９及び吐出口２０の位置を可動鉄心２８の動作位置の一方側の配置しており、また、吸入口１９及び吐出口２０の位置に対向した反対側に可動鉄心２８のストロークＳを調整できる調整ねじ３０及びナット部材３１を配置した。
このため、従来は可動鉄心５３の中心を流体の流路とし、吸入口５８（ＩＮ）及び吐出口４７（ＯＵＴ）を略直線上に配置したが、本発明の実施の形態では流体の流路を可動鉄心５３の中心に連通しないようにしたことで、吸入口１９及び吐出口２０の配置の自由度が広がった。
さらに、電磁ポンプ１０を構成する部品の累積寸法誤差をキャンセルできる構造にすることにより、可動鉄心５３のストロークＳの精度を向上させることができる。
本発明の実施の形態を示す図１において、電磁ポンプ１０は縦方向（図１で上下方向）の向きに配設したが、横方向（図１で左右方向）に配置してもよい。
してください。 As shown in FIG. 1, the electromagnetic pump 10 has the fluid suction port 19 and the discharge port 20 positioned on one side of the operating position of the movable iron core 28, and is positioned at the position of the suction port 19 and the discharge port 20. An adjusting screw 30 and a nut member 31 that can adjust the stroke S of the movable iron core 28 are arranged on the opposite side opposite to each other.
Therefore, conventionally, the center of the movable iron core 53 is used as a fluid flow path, and the suction port 58 (IN) and the discharge port 47 (OUT) are arranged on a substantially straight line. However, in the embodiment of the present invention, the fluid flow path is used. By not communicating with the center of the movable iron core 53, the degree of freedom of arrangement of the suction port 19 and the discharge port 20 is expanded.
Furthermore, the accuracy of the stroke S of the movable iron core 53 can be improved by adopting a structure capable of canceling the cumulative dimensional error of the parts constituting the electromagnetic pump 10.
In FIG. 1 showing the embodiment of the present invention, the electromagnetic pump 10 is arranged in the vertical direction (vertical direction in FIG. 1), but may be arranged in the horizontal direction (horizontal direction in FIG. 1).
please.

本発明の実施の形態に係る電磁ポンプ１０は基本的には以上のように構成されたものであり、動作について説明する。
電磁コイル１４を励磁すると図２で可動鉄心２８が下方にストロークＳだけ固定鉄心１６側に吸引され、凹部２２に貯留された液体（図示しない）が穴１８ｂ、出口逆止弁２７、吐出路２３、吐出口２０より吐出される。（図２参照）
一方、電磁コイル１４を非励磁にすると可動鉄心２８がばね部材２９の弾発力によりストロークＳだけ調整ねじ３０側に移動する。これにより、液体が吸入口１９、吸入路２１、入口逆止弁２４、穴１８ａを経て凹部２２に貯留される。（図１参照） The electromagnetic pump 10 according to the embodiment of the present invention is basically configured as described above, and its operation will be described.
When the electromagnetic coil 14 is excited, the movable iron core 28 is attracted downward to the fixed iron core 16 side by the stroke S in FIG. 2, and the liquid (not shown) stored in the recess 22 is filled with the hole 18b, the outlet check valve 27, and the discharge path 23. , And discharged from the discharge port 20. (See Figure 2)
On the other hand, when the electromagnetic coil 14 is de-excited, the movable iron core 28 moves toward the adjusting screw 30 by the stroke S by the elastic force of the spring member 29. Thereby, the liquid is stored in the recess 22 through the suction port 19, the suction passage 21, the inlet check valve 24, and the hole 18a. (See Figure 1)

１０ 電磁ポンプ １１ ボディ
１３ ポンプ本体 １４ 電磁コイル
１５ ヨーク １６ 固定鉄心
２４ 入口逆止弁 ２７ 吐出逆止弁
３０ 調整ねじ ３１ ナット部材
DESCRIPTION OF SYMBOLS 10 Electromagnetic pump 11 Body 13 Pump main body 14 Electromagnetic coil 15 Yoke 16 Fixed iron core 24 Inlet check valve 27 Discharge check valve 30 Adjustment screw 31 Nut member

Claims (4)

円筒形状のボディと、
前記ボディに嵌挿されソレノイドを形成する円筒形状のコイルと、
前記コイルの内側に設けられ鍔部が前記コイルの一側に係合する円筒形状のヨークと、
前記ヨークの円筒部の内側に摺動可能に嵌挿され一側に開口する凹形状の可動鉄心と、
前記可動鉄心に対向して前コイルに内側に設けられ一側に開口する凹部を形成する固定鉄心と、
前記ボディに取り付けられ前記ボディの軸心方向に対して直交して同一線上で対向して設けられた吸入口及び吐出口を有するポンプ本体と、
前記ポンプ本体に形成され前記吸入口に連通する貫通孔に設けた入口逆止弁と、
前記ポンプ本体に形成され前記吐出口に連通する貫通孔に設けた出口逆止弁と、
前記ボディに取り付けられ前記可動鉄心を押圧して該可動鉄心のストロークを規制する調整機構と、
を備え、
前記可動鉄心及び前記ポンプ本体は前記固定鉄心を挿んで対向して配設され、前記可動鉄心及び前記調整機構は隣接して設けられたことを特徴とする電磁ポンプ。 A cylindrical body;
A cylindrical coil that is inserted into the body to form a solenoid;
A cylindrical yoke provided on the inner side of the coil and having a flange engaged with one side of the coil;
A concave movable iron core that is slidably inserted inside the cylindrical portion of the yoke and opens to one side;
A fixed iron core that forms a concave portion that is provided on the inner side of the front coil and opens to one side facing the movable iron core,
A pump body having a suction port and a discharge port, which are attached to the body and provided to face each other on the same line perpendicular to the axial direction of the body;
An inlet check valve provided in a through hole formed in the pump body and communicating with the suction port;
An outlet check valve provided in a through hole formed in the pump body and communicating with the discharge port;
An adjustment mechanism that is attached to the body and presses the movable core to restrict the stroke of the movable core;
With
2. The electromagnetic pump according to claim 1, wherein the movable iron core and the pump main body are arranged to face each other with the fixed iron core inserted, and the movable iron core and the adjusting mechanism are provided adjacent to each other. 請求項１記載の電磁ポンプにおいて、
前記固定鉄心の鍔部にはリテーナにより凹部が形成され該凹部に前記吸入口及び前記吐出口が前記貫通孔、前記入口逆止弁及び出口逆止弁を介して連通することを特徴とする電磁ポンプ。 The electromagnetic pump according to claim 1,
A recess is formed in the flange portion of the fixed iron core by a retainer, and the suction port and the discharge port communicate with the recess through the through hole, the inlet check valve, and the outlet check valve. pump. 請求項１または２記載の電磁ポンプにおいて、
前記入口逆止弁及び前記出逆止弁は、前記貫通孔に設けられたばね部材と、前記ばね部材の弾発力により押圧されるボール部材と、を備えることを特徴とする電磁ポンプ。 The electromagnetic pump according to claim 1 or 2,
The inlet check valve and the outlet check valve each include a spring member provided in the through-hole and a ball member pressed by the elastic force of the spring member. 請求項１乃至３記載のいずれか１の電磁ポンプにおいて、
前記調整機構は、前記ボディに取り付けられたボス部に螺着し前記可動鉄心に係合するねじ部材と、前記ねじ部材に螺合し前記ボス部に固締されるナット部材と、を備えることを特徴とする電磁ポンプ。

The electromagnetic pump according to any one of claims 1 to 3,
The adjustment mechanism includes a screw member that is screwed to a boss portion attached to the body and engages with the movable iron core, and a nut member that is screwed to the screw member and fixed to the boss portion. An electromagnetic pump characterized by

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850926A (en) * 2014-03-28 2014-06-11 天津市精诚高压泵制造有限责任公司 Threaded connection and combination type liquid feed/drainage valve set
CN103850927A (en) * 2014-03-28 2014-06-11 天津市精诚高压泵制造有限责任公司 Liquid inlet and outlet valve group of high-pressure pump
CN104785396A (en) * 2014-11-25 2015-07-22 杭州哈帝环保科技有限公司 Jet device and control method thereof

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JPS554303U (en) * 1978-06-23 1980-01-12
JPH0521180U (en) * 1991-08-30 1993-03-19 株式会社イワキ Stroke length adjustment mechanism of metering pump
JP2006291914A (en) * 2005-04-14 2006-10-26 Nachi Fujikoshi Corp Electromagnetic pump

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Publication number Priority date Publication date Assignee Title
JPS554303U (en) * 1978-06-23 1980-01-12
JPH0521180U (en) * 1991-08-30 1993-03-19 株式会社イワキ Stroke length adjustment mechanism of metering pump
JP2006291914A (en) * 2005-04-14 2006-10-26 Nachi Fujikoshi Corp Electromagnetic pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850926A (en) * 2014-03-28 2014-06-11 天津市精诚高压泵制造有限责任公司 Threaded connection and combination type liquid feed/drainage valve set
CN103850927A (en) * 2014-03-28 2014-06-11 天津市精诚高压泵制造有限责任公司 Liquid inlet and outlet valve group of high-pressure pump
CN104785396A (en) * 2014-11-25 2015-07-22 杭州哈帝环保科技有限公司 Jet device and control method thereof

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