WO2005085639A1 - Reciprocating pump structure with detachable pump head part - Google Patents

Reciprocating pump structure with detachable pump head part Download PDF

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Publication number
WO2005085639A1
WO2005085639A1 PCT/JP2005/003374 JP2005003374W WO2005085639A1 WO 2005085639 A1 WO2005085639 A1 WO 2005085639A1 JP 2005003374 W JP2005003374 W JP 2005003374W WO 2005085639 A1 WO2005085639 A1 WO 2005085639A1
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WO
WIPO (PCT)
Prior art keywords
pump
reciprocating
diaphragm
foot
pump head
Prior art date
Application number
PCT/JP2005/003374
Other languages
French (fr)
Japanese (ja)
Inventor
Tetsuo Owada
Original Assignee
Namiki Seimitsu Houseki Kabusikikaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Namiki Seimitsu Houseki Kabusikikaisha filed Critical Namiki Seimitsu Houseki Kabusikikaisha
Priority to JP2006510671A priority Critical patent/JP4734519B2/en
Publication of WO2005085639A1 publication Critical patent/WO2005085639A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Definitions

  • the present invention relates to a reciprocating pump structure in a reciprocating pump such as a diaphragm pump, in which a pump head unit and a pump driving unit can be easily attached and detached.
  • a reciprocating pump using a piston, a diaphragm, or the like is generally known, but a micropump for sending a small amount of liquid has many mechanism principles.
  • a micropump having a mechanism such as a diaphragm valve or a piston type using a small motor in a drive system has been generally known for a long time. 1).
  • This type of micropump is used as a microfluid supply device for medical equipment and chemical analysis equipment, and is used for the constant injection of chemicals and for transporting fluids such as reaction mixture gas.
  • fluids such as reaction mixture gas.
  • Small and versatile micropumps are being developed.
  • FIG. 6 shows an example of a conventional diaphragm-type micropump developed by the present applicant (Patent Document 2).
  • the micropump 44 shown in the sectional view of the Q section in FIG. 1A and the micropump 44 shown in FIG. 6B uses a small motor 45 such as a coreless motor as a driving source on the driving side, and drives the small motor 45.
  • the pump section includes a valve head section 53 having a suction port 51 and a discharge port 52, and a knob case section 55 having one suction and discharge valve mechanism 54.
  • a diaphragm 56 and a diaphragm mount 57 for fixing the diaphragm 56 to the valve case 55.
  • valve head 53, the valve case 55, and the diaphragm mount 57 are fastened to the slider case 50 by screws 58.
  • the diaphragm 56 is outside its circle so as to be sandwiched between the valve case 55 and the diaphragm mount 57.
  • a peripheral foot is fixed, and a diaphragm foot 59 formed on the diaphragm 56 is screwed to the connecting slider 48.
  • the screw 58 is removed, the diaphragm 56 is screwed to the connecting slider 48 with the diaphragm foot 59 and the disassembly is not easy, so that the pump head 60 and the pump
  • the part 61 has a structure that cannot be easily attached and detached.
  • the pump head section 60 uses the disk-shaped diaphragm 56, which is also made of an elastic sheet material such as synthetic rubber.
  • a pump chamber 62 for temporarily storing a fluid is formed by being held by the diaphragm mount 57 at the outermost circumference of the case 55.
  • the diaphragm foot 59 is screwed to the tip of the connecting slider 48 that moves back and forth in the up and down direction, and is elastically deformed to allow a movement with amplitude.
  • the volume of the pump chamber 62 is increased or decreased by displacing the center plane portion of the diaphragm 56 up and down by the connecting slider 48, and the pressure fluctuation generated at that time is used for the fluid.
  • This is a pump characterized by repeating a series of operations from the inlet 51 to the outlet 52 to send fluid in one direction.
  • Patent Document 1 JP-A-62-291484
  • Patent Document 2 JP 2001-012356
  • the pump head and the pump driving unit are fastened with screws or the like, and the diaphragm is fixed to the diaphragm mount and the connecting slider. Therefore, it is not easy to remove the pump head part. It was troublesome to disassemble during maintenance and inspection, which was inconvenient. In addition, in order to replace the pump head to change the fluid, considering the time and effort of disassembly, the entire pump drive was changed together, so the cost was high.
  • an object of the present invention is to solve the above-mentioned problems and to provide a reciprocating pump structure in which the pump head and the pump driving unit can be easily attached and detached in one stroke.
  • the invention according to claim 1 has a pump head portion and a pump drive portion, and the pump head portion has a suction port, a discharge port, and a valve structure that determines a fluid flow path from a suction side to a discharge side.
  • the upper and lower tapers provided on the foot are engaged with the tapered substantially U-shaped notch provided at one end of the connecting slider.
  • a reciprocating pump structure characterized in that the pump head portion and the pump drive portion are provided with an uneven shape so as to fit in the vertical direction, and are slidably fitted.
  • the invention according to claim 2 is the reciprocating pump structure according to claim 1, wherein the pump structure takes a diaphragm type.
  • the invention according to claim 3 is the reciprocating pump structure according to claim 1, wherein the pump structure takes a piston type.
  • the invention according to claim 4 is the reciprocating pump structure according to claims 1 to 3, wherein a substantially U-shaped cutout portion provided in the foot portion with a taper is provided at one end of the connecting slider.
  • the upper and lower tapered constrictions can be locked, and the pump head and pump drive are provided with an uneven shape so that they fit in the vertical direction, and are slide-fitted.
  • This is a reciprocating pump structure.
  • the pump head section and the pump drive section are fitted to each other, and the foot section is locked to the connecting slider.
  • the pump head can be easily attached to and detached from the pump drive unit in one stroke, so that the pump head unit, that is, the liquid contacting unit, can be disposable.
  • This has the advantage of hygiene, the convenience of maintenance and inspection, and the ability to switch the flow of various fluids with one pump drive and multiple pump heads. No. In addition, this configuration does not depend on the type of the pump.
  • FIG. 2 shows a diaphragm type reciprocating pump 1 as a first embodiment.
  • the reciprocating pump 1 includes a pump head 2 and a pump driving unit 3.
  • the pump head section 2 includes an inlet 4, an outlet 5, valve mechanisms 6 and 7, a diaphragm 8, a diaphragm foot 9, a valve head 10, a valve case 11, and a diaphragm mount 12. Further, the valve head 10, the valve case 11, and the diaphragm mount 12 are fastened to the body by screws 13.
  • the pump drive unit 3 also includes a motor 14 as a drive source, a drive shaft 15 of the motor 14, an eccentric 16 provided on the drive shaft 15, and an eccentric motion of the eccentric 16 to move up and down.
  • a connecting slider 17 and a slider case 18 are provided.
  • the output of the pump drive unit 3 is transmitted to the diaphragm 8 fixed to the diaphragm foot 9 via the eccentric 16 and the connecting slider 17, and the center plane portion of the diaphragm 8 is vertically displaced. Increase or decrease the volume of the pump chamber 19. By utilizing the pressure fluctuation generated at that time, the fluid is sent in one direction from the suction port 4 to the discharge port 5 by repeating a series of operations.
  • FIG. 3 shows a cross-sectional view of a portion T in FIG. 2 (b).
  • a substantially U-shaped notch 20 is provided at one end of the connecting slider 17.
  • the pump head unit 2 and the pump drive unit 3 are vertically fitted with each other, and are further provided with concave and convex shapes 21 and 22 so as to be slidable.
  • a constricted portion 23 is provided at the center of the diaphragm foot 9 so as to be locked to the notched portion 20, and these concave and convex shapes 21 and 22, the notched portion 20, and the constricted portion 23 are all shown in FIG. It can be slid in the direction A as shown.
  • the constricted portion 23 is tapered at both ends. Further, the notch 20 provided in the connecting slider 17 is also tapered. For this reason, the taper serves as a guide, and the displacement of the connecting slider 17 in the vertical movement can be corrected. (Second Embodiment)
  • FIG. 5 shows a piston type reciprocating pump 24 as a second embodiment.
  • This reciprocating pump 24 is also composed of a pump head unit 25 and a pump driving unit 26 as in the first embodiment.
  • the pump head section 25 includes a suction port 27, a discharge port 28, valve mechanisms 29 and 30, pistons 31, a piston foot 32, a valve head 33, and a valve case 34. Further, at the screw 35, the valve head 33 and the valve case 34 are integrally fastened. Note that the diaphragm foot 9 and the piston foot 32 are collectively referred to as a foot portion.
  • the pump driving unit 26 includes a motor 36 serving as a driving source, a driving shaft 37 of the motor 36, an eccentric 38 provided on the driving shaft 37, and an eccentric motion of the eccentric 38.
  • a connecting slider 39 and a slider case 40 are provided.
  • the output of the pump drive unit 26 is transmitted to the piston 31 fixed to the piston foot 32 via the eccentric 38 and the connecting slider 39, and the piston 31 is displaced up and down to Increase or decrease the volume. Utilizing the pressure fluctuation generated at that time, a series of operations are repeated from the suction port 27 to the discharge port 28 to send the fluid in one direction.
  • the pump head portion 25 and the pump driving portion 26 are vertically fitted to each other, and furthermore, the concave and convex shapes 42 and 43 are slidable.
  • a notch is provided in the connecting slider 39 so that the constricted portion of the piston foot 32 can be locked, and these concave and convex shapes 42 and 43, the notched portion, and the constricted portion slide in a certain direction. Configured to be possible.
  • the pump head portion and the pump drive portion can be easily attached and detached.
  • the same effect as the present invention can be obtained.
  • the embodiment shown in FIG. 7 is a diaphragm type reciprocating pump. By providing a notch in the diaphragm foot 63 and a constriction in the connecting slider 64, the pump head 65 and the pump drive 66 can be easily attached and detached.
  • the embodiment shown in FIG. 8 is a piston type reciprocating pump. By providing a notch in the piston foot 67 and a constriction in the connecting slider 68, the pump head 69 and the pump drive 70 can be easily attached and detached.
  • the pump head section and the pump drive section are slidably fitted to each other, so that the pump head section can be easily attached and detached in one stroke. If the diaphragm ⁇ valve is eroded by chemicals or the like, only the pump head section can be replaced. As a result, there is no need to replace the entire pump, and the maintenance of the pump device is excellent.
  • the present invention provides a small-sized microfluidic fluid for use in medical equipment, chemical analysis equipment, and the like, since the pump head section slide-fits and the pump head section and the pump drive section can be easily attached and detached in one stroke.
  • the liquid contact part can be used and discarded.
  • FIG. 1 (a) is a schematic perspective view showing the appearance of a diaphragm type reciprocating pump of the present invention and a conventional micropump. (B) It is a schematic perspective view showing the appearance of the piston type reciprocating pump of the present invention.
  • FIG. 2 (a) is a sectional view of a P part in FIG. 1 (a) of the first embodiment of the present invention.
  • FIG. 2 (b) is a sectional view of a Q part in FIG. 1 (a) of the first embodiment of the present invention.
  • FIG. 3 is a sectional view of a portion T in FIG. 2.
  • FIG. 4 is a sectional view showing a state where a pump head section is slid in FIG. 2.
  • FIG. 5 (a) is a sectional view of an R portion in FIG. 1 (b) of the second embodiment of the present invention.
  • (B) It is a sectional view of the S section in FIG. 1 (b) of the second embodiment of the present invention.
  • FIG. 6 (a) is a cross-sectional view of a P part in FIG. 1 (a) showing a structure of a conventional micropump.
  • FIG. 1 (b) is a sectional view of a portion Q in FIG. 1 (a) showing a structure of a conventional micropump.
  • FIG. 7 (a) FIG. 1 showing an example in which the shapes of the foot portion and the connecting slider of the present invention are changed.
  • FIG. 4 is a cross-sectional view of a P part in FIG.
  • FIG. 1 (b) is a cross-sectional view of a portion Q in FIG. 1 (a) showing an example in which the shapes of a foot portion and a connecting slider of the present invention are changed.
  • FIG. 8 (a) FIG. 1 showing an example in which the shapes of the foot portion and the connecting slider of the present invention are changed.
  • FIG. 4B is a cross-sectional view of the R portion in FIG. (B)
  • FIG. 1 is a cross-sectional view of an S portion in FIG.

Abstract

[PROBLEMS] To provide a reciprocating pump structure enabling the easy attachment/detachment of a pump head part to and from a pump drive part. [MEANS FOR SOLING PROBLEMS] Recessed and projected parts are formed in the pump head part and on the pump drive part so as to be fitted to each other, and the narrowed part of a foot part is locked to an approximately U-shaped cutout part formed in a connecting slider. Accordingly, the pump head part is allowed to slide relative to the pump drive part. Thus, since the pump head part can be easily attached to and detached from the pump drive part, the pump head part is made disposable.

Description

明 細 書  Specification
ポンプヘッド部が着脱可能な往復動ポンプ構造  Reciprocating pump structure with removable pump head
技術分野  Technical field
[0001] 本発明は、ダイアフラムポンプ等、往復動ポンプにおける、ポンプヘッド部とポンプ 駆動部が容易に着脱可能となる往復動ポンプ構造に関する。  The present invention relates to a reciprocating pump structure in a reciprocating pump such as a diaphragm pump, in which a pump head unit and a pump driving unit can be easily attached and detached.
背景技術  Background art
[0002] 従来、往復動ポンプとしては、ピストンやダイアフラム等を用いたものが一般的に知 られている力 なかでも、微量な液体を送液するマイクロポンプには数多くの機構原 理が存在し、例えば弁機構においてはリードバルブ型、バルブレス型など力 又、駆 動系では小型モータを用いたダイヤフラム型、ピストン型などの機構を有するマイクロ ポンプが以前から一般的に知られている（特許文献 1)。この種のマイクロポンプは、 医療機器及び化学分析機器の微量流体供給装置として、薬液の定量注入や反応混 合ガス等の流体物を搬送するために用いられ、現在、より高精度な制御ができる小 型で汎用性のあるマイクロポンプの開発が進められて 、る。  Conventionally, a reciprocating pump using a piston, a diaphragm, or the like is generally known, but a micropump for sending a small amount of liquid has many mechanism principles. For example, for a valve mechanism, a micropump having a mechanism such as a diaphragm valve or a piston type using a small motor in a drive system has been generally known for a long time. 1). This type of micropump is used as a microfluid supply device for medical equipment and chemical analysis equipment, and is used for the constant injection of chemicals and for transporting fluids such as reaction mixture gas.Currently, more precise control is possible. Small and versatile micropumps are being developed.
[0003] 図 6は、本出願人が開発した従来タイプのダイヤフラム型マイクロポンプの一例であ る（特許文献 2)。図 1 (a)の Q部断面図、図 6 (b)で示されるマイクロポンプ 44は、駆 動部側としては、例えばコアレスモータなどの小型モータ 45を駆動源とし、前記小型 モータ 45の駆動軸 46と、前記駆動軸 46に備えられたエキセントリック 47と、前記ェ キセントリック 47と摺動するコネクティングスライダ 48からなる、前記駆動軸 46の回転 運動を往復ピストン運動に変換するスライダ'カム機構 49と、スライダーケース 50より 構成され、また、ポンプ部側としては、吸入口 51と排出口 52を備えるバルブヘッド部 53と、吸排出用のバルブ機構 54をそれぞれ 1箇所ずつ有するノ レブケース部 55と 、ダイアフラム 56と、前記ダイアフラム 56を前記バルブケース部 55に固定するダイァ フラムマウント 57から概略構成されて 、る。  FIG. 6 shows an example of a conventional diaphragm-type micropump developed by the present applicant (Patent Document 2). The micropump 44 shown in the sectional view of the Q section in FIG. 1A and the micropump 44 shown in FIG. 6B uses a small motor 45 such as a coreless motor as a driving source on the driving side, and drives the small motor 45. A slider cam mechanism 49 for converting the rotational movement of the drive shaft 46 into a reciprocating piston movement, comprising a shaft 46, an eccentric 47 provided on the drive shaft 46, and a connecting slider 48 that slides on the eccentric 47. The pump section includes a valve head section 53 having a suction port 51 and a discharge port 52, and a knob case section 55 having one suction and discharge valve mechanism 54. A diaphragm 56 and a diaphragm mount 57 for fixing the diaphragm 56 to the valve case 55.
[0004] 前記バルブヘッド部 53と、前期バルブケース 55と、前記ダイアフラムマウント 57は ネジ 58によって前記スライダーケース 50に締結される。また、前記ダイアフラム 56は 前記バルブケース 55と前記ダイアフラムマウント 57に挟み込まれる様に、その円外 周部を固定され、前記ダイアフラム 56に形成されるダイアフラムフット 59は前記コネク ティングスライダ 48にネジ締結されている。このため、前記ネジ 58を外しても、前記ダ ィァフラム 56は、前記ダイアフラムフット 59をもって、前記コネクティングスライダ 48に ネジ締結されており、その分解が容易でないことから、ポンプヘッド部 60とポンプ駆 動部 61が容易に着脱ができな 、構造となって 、る。 [0004] The valve head 53, the valve case 55, and the diaphragm mount 57 are fastened to the slider case 50 by screws 58. In addition, the diaphragm 56 is outside its circle so as to be sandwiched between the valve case 55 and the diaphragm mount 57. A peripheral foot is fixed, and a diaphragm foot 59 formed on the diaphragm 56 is screwed to the connecting slider 48. For this reason, even if the screw 58 is removed, the diaphragm 56 is screwed to the connecting slider 48 with the diaphragm foot 59 and the disassembly is not easy, so that the pump head 60 and the pump The part 61 has a structure that cannot be easily attached and detached.
[0005] また、上記マイクロポンプ 44の作動原理は次のとおりである。前記ポンプヘッド部 6 0には、図 6の正面断面図（a)に示すように、合成ゴムなどの弾性シート材カもなる円 盤状の前記ダイヤフラム 56を用い、その円外周部は前記バルブケース 55の最外郭 径の円周部で前記ダイアフラムマウント 57に保持されることにより、流体を一時的に 溜めるポンプ室 62が形成される。また、前記ダイヤフラムフット 59は、上下方向に往 復運動する前記コネクティングスライダ 48の先端にネジ締結され、弾性変形して振幅 のある動きが可能となる。  [0005] The operating principle of the micropump 44 is as follows. As shown in the front sectional view (a) of FIG. 6, the pump head section 60 uses the disk-shaped diaphragm 56, which is also made of an elastic sheet material such as synthetic rubber. A pump chamber 62 for temporarily storing a fluid is formed by being held by the diaphragm mount 57 at the outermost circumference of the case 55. The diaphragm foot 59 is screwed to the tip of the connecting slider 48 that moves back and forth in the up and down direction, and is elastically deformed to allow a movement with amplitude.
[0006] 以上より、前記マイクロポンプは、コネクティングスライダ 48によってダイヤフラム 56 の中央平面部分を上下に変位させて前記ポンプ室 62の容積を増減させ、その際に 発生する圧力変動を利用して、流体を吸入口 51から排出口 52まで、一連の動作を 繰り返して一方向に流体を送流する事を特徴とするポンプである。  [0006] As described above, in the micropump, the volume of the pump chamber 62 is increased or decreased by displacing the center plane portion of the diaphragm 56 up and down by the connecting slider 48, and the pressure fluctuation generated at that time is used for the fluid. This is a pump characterized by repeating a series of operations from the inlet 51 to the outlet 52 to send fluid in one direction.
特許文献 1：特開昭 62— 291484  Patent Document 1: JP-A-62-291484
特許文献 2 :特開 2001-012356  Patent Document 2: JP 2001-012356
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0007] し力しながら、従来タイプのダイヤフラム型マイクロポンプ構造では、ポンプヘッド部 とポンプ駆動部はネジ等で締結されて 、る上、ダイァフラムはダイァフラムマウントとコ ネクティングスライダに固定されて 、るため、ポンプヘッド部の取り外しは容易ではな ぐ保守 ·点検の際には分解に手間がかかり、不便であった。また、流体を変更する ためにポンプヘッド部を交換するには、分解の手間を考えると、ポンプ駆動部ごと一 緒に変更していたため、コストも力かっていた。  [0007] In the conventional diaphragm-type micropump structure, the pump head and the pump driving unit are fastened with screws or the like, and the diaphragm is fixed to the diaphragm mount and the connecting slider. Therefore, it is not easy to remove the pump head part. It was troublesome to disassemble during maintenance and inspection, which was inconvenient. In addition, in order to replace the pump head to change the fluid, considering the time and effort of disassembly, the entire pump drive was changed together, so the cost was high.
[0008] したがって、本発明は、上記の問題点を解決し、ポンプヘッド部とポンプ駆動部が 容易に一行程で着脱可能である往復動ポンプ構造を提供することを目的とする。 課題を解決するための手段 [0008] Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a reciprocating pump structure in which the pump head and the pump driving unit can be easily attached and detached in one stroke. Means for solving the problem
[0009] 請求項 1記載の発明は、ポンプヘッド部とポンプ駆動部を有し、ポンプヘッド部には 、吸入口、排出口、及び流体の流路を吸入側から排出側に決定するバルブ構造と、 流体の流路と、ポンプ室と、そのポンプ室の容積を変動させる部品と、それに固定さ れたフット部を備え、ポンプ駆動部には、駆動源力もの出力を伝えるコネクティンダス ライダを備える往復動ポンプ構造にぉ 、て、コネクティングスライダの一端に設けられ たテーパのついた略 U字型の切欠き部に、フット部に設けられた上下にテーパのつ いた括れ部を係止可能にし、また、ポンプヘッド部とポンプ駆動部とが上下方向に嵌 合するように凹凸形状が設けられ、スライド嵌合されることを特徴とした往復動ポンプ 構造  [0009] The invention according to claim 1 has a pump head portion and a pump drive portion, and the pump head portion has a suction port, a discharge port, and a valve structure that determines a fluid flow path from a suction side to a discharge side. A fluid passage, a pump chamber, a component for changing the volume of the pump chamber, and a foot fixed to the pump chamber. In the reciprocating pump structure, the upper and lower tapers provided on the foot are engaged with the tapered substantially U-shaped notch provided at one end of the connecting slider. A reciprocating pump structure characterized in that the pump head portion and the pump drive portion are provided with an uneven shape so as to fit in the vertical direction, and are slidably fitted.
である。  It is.
[0010] 請求項 2記載の発明は、請求項 1記載の往復動ポンプ構造において、ポンプ構造 がダイアフラム形式を取ることを特徴とした往復動ポンプ構造である。  [0010] The invention according to claim 2 is the reciprocating pump structure according to claim 1, wherein the pump structure takes a diaphragm type.
[0011] 請求項 3記載の発明は、請求項 1記載の往復動ポンプ構造において、ポンプ構造 がピストン形式を取ることを特徴とした往復動ポンプ構造である。  [0011] The invention according to claim 3 is the reciprocating pump structure according to claim 1, wherein the pump structure takes a piston type.
[0012] 請求項 4記載の発明は、請求項 1乃至 3記載の往復動ポンプ構造において、フット 部に設けられたテーパのついた略 U字型の切欠き部に、コネクティングスライダの一 端に設けられた上下にテーパのついた括れ部を係止可能にし、また、ポンプヘッド部 とポンプ駆動部とが上下方向に嵌合するように凹凸形状が設けられ、スライド嵌合さ れることを特徴とした往復動ポンプ構造である。  [0012] The invention according to claim 4 is the reciprocating pump structure according to claims 1 to 3, wherein a substantially U-shaped cutout portion provided in the foot portion with a taper is provided at one end of the connecting slider. The upper and lower tapered constrictions can be locked, and the pump head and pump drive are provided with an uneven shape so that they fit in the vertical direction, and are slide-fitted. This is a reciprocating pump structure.
発明の効果  The invention's effect
[0013] 本発明は、ポンプヘッド部とポンプ駆動部とが互いに嵌合し、コネクティングスライダ にフット部が係止されるように構成されることにより、スライド嵌合可能であるから、ボン プヘッド部をポンプ駆動部より容易に一行程で着脱することが可能な為、ポンプへッ ド部つまり接液部を使い捨てにすることが可能である。これにより衛生面での利点や 、保守 ·点検時の利便性のある点、また、 1つのポンプ駆動部と複数のポンプヘッド部 にて、多種の流体の送流の切替が可能である点が挙げられる。また、この構成はボン プの形式を問わない。 発明を実施するための最良の形態 According to the present invention, the pump head section and the pump drive section are fitted to each other, and the foot section is locked to the connecting slider. The pump head can be easily attached to and detached from the pump drive unit in one stroke, so that the pump head unit, that is, the liquid contacting unit, can be disposable. This has the advantage of hygiene, the convenience of maintenance and inspection, and the ability to switch the flow of various fluids with one pump drive and multiple pump heads. No. In addition, this configuration does not depend on the type of the pump. BEST MODE FOR CARRYING OUT THE INVENTION
[0014] (第 1の実施の形態）  (First Embodiment)
第 1の実施の形態として、ダイアフラム形式の往復動ポンプ 1を図 2に示す。この往 復動ポンプ 1は、ポンプヘッド部 2及びポンプ駆動部 3より構成されている。前記ボン プヘッド部 2は吸入口 4、排出口 5、バルブ機構 6、 7、ダイアフラム 8、ダイアフラムフ ット 9、バルブヘッド 10、バルブケース 11、ダイアフラムマウント 12を備えている。さら にネジ 13により前記バルブヘッド 10、バルブケース 11、ダイアフラムマウント 12がー 体に締結されている。  FIG. 2 shows a diaphragm type reciprocating pump 1 as a first embodiment. The reciprocating pump 1 includes a pump head 2 and a pump driving unit 3. The pump head section 2 includes an inlet 4, an outlet 5, valve mechanisms 6 and 7, a diaphragm 8, a diaphragm foot 9, a valve head 10, a valve case 11, and a diaphragm mount 12. Further, the valve head 10, the valve case 11, and the diaphragm mount 12 are fastened to the body by screws 13.
[0015] また、ポンプ駆動部 3は、駆動源であるモータ 14、前記モータ 14の駆動軸 15、前 記駆動軸 15に備えられたエキセントリック 16、前記エキセントリック 16が偏心円運動 することにより上下運動するコネクティングスライダ 17、及びスライダーケース 18を備 えている。  [0015] The pump drive unit 3 also includes a motor 14 as a drive source, a drive shaft 15 of the motor 14, an eccentric 16 provided on the drive shaft 15, and an eccentric motion of the eccentric 16 to move up and down. A connecting slider 17 and a slider case 18 are provided.
[0016] ポンプ駆動部 3の出力を前記エキセントリック 16及び前記コネクティングスライダ 17 を介し、前記ダイアフラムフット 9に固定される前記ダイアフラム 8に伝達させ、前記ダ ィァフラム 8の中央平面部分を上下に変位させてポンプ室 19の容積を増減する。そ の際に発生する圧力変動を利用して、流体を前記吸入口 4から前記排出口 5まで、 一連の動作を繰り返して一方向に流体を送流する。  The output of the pump drive unit 3 is transmitted to the diaphragm 8 fixed to the diaphragm foot 9 via the eccentric 16 and the connecting slider 17, and the center plane portion of the diaphragm 8 is vertically displaced. Increase or decrease the volume of the pump chamber 19. By utilizing the pressure fluctuation generated at that time, the fluid is sent in one direction from the suction port 4 to the discharge port 5 by repeating a series of operations.
[0017] 図 3に、図 2 (b)における T部の断面図を示す。本発明では、前記コネクティングスラ イダ 17の一端に略 U字型の切欠き部 20を設けている。  FIG. 3 shows a cross-sectional view of a portion T in FIG. 2 (b). In the present invention, a substantially U-shaped notch 20 is provided at one end of the connecting slider 17.
[0018] また、前記ポンプヘッド部 2と前記ポンプ駆動部 3が互いに上下方向に嵌合し、更 に、スライド可能になるように凹凸形状 21、 22を設け、また、前記コネクティングスライ ダ 17の切欠き部 20に係止されるようにダイアフラムフット 9の中央部に括れ部 23を設 け、これらの前期凹凸形状 21、 22、前記切り欠部 20、前記括れ部 23は共に、図 4に 示す A方向にスライド可會 こなるように構成される。  The pump head unit 2 and the pump drive unit 3 are vertically fitted with each other, and are further provided with concave and convex shapes 21 and 22 so as to be slidable. A constricted portion 23 is provided at the center of the diaphragm foot 9 so as to be locked to the notched portion 20, and these concave and convex shapes 21 and 22, the notched portion 20, and the constricted portion 23 are all shown in FIG. It can be slid in the direction A as shown.
[0019] 尚、前記括れ部 23には、その両端にテーパがつけられている。また、前記コネクテ イングスライダ 17に設けられている前記切欠き部 20にもテーパがつけられている。こ の為、テーパがガイドの役目を果たし、前記コネクティングスライダ 17の上下運動に おける位置ズレを修整することができる。 [0020] (第 2の実施の形態） The constricted portion 23 is tapered at both ends. Further, the notch 20 provided in the connecting slider 17 is also tapered. For this reason, the taper serves as a guide, and the displacement of the connecting slider 17 in the vertical movement can be corrected. (Second Embodiment)
第 2の実施の形態として、ピストン形式の往復動ポンプ 24を図 5に示す。この往復 動ポンプ 24も第 1の実施形態と同様に、ポンプヘッド部 25及びポンプ駆動部 26より 構成されている。ポンプヘッド部 25は吸入口 27、排出口 28、バルブ機構 29、 30、ピ ストン 31、ピストンフット 32、バルブヘッド 33、バルブケース 34を備えている。さらにネ ジ 35にて前記バルブヘッド 33と前記バルブケース 34は一体に締結されている。尚、 前記ダイアフラムフット 9とピストンフット 32を総称してフット部とする。  FIG. 5 shows a piston type reciprocating pump 24 as a second embodiment. This reciprocating pump 24 is also composed of a pump head unit 25 and a pump driving unit 26 as in the first embodiment. The pump head section 25 includes a suction port 27, a discharge port 28, valve mechanisms 29 and 30, pistons 31, a piston foot 32, a valve head 33, and a valve case 34. Further, at the screw 35, the valve head 33 and the valve case 34 are integrally fastened. Note that the diaphragm foot 9 and the piston foot 32 are collectively referred to as a foot portion.
[0021] また、ポンプ駆動部 26は、駆動源であるモータ 36、前記モータ 36の駆動軸 37、前 記駆動軸 37に備えられたエキセントリック 38、前記エキセントリック 38が偏心円運動 することにより上下方向に運動するコネクティングスライダ 39、及びスライダーケース 4 0を備えている。  Further, the pump driving unit 26 includes a motor 36 serving as a driving source, a driving shaft 37 of the motor 36, an eccentric 38 provided on the driving shaft 37, and an eccentric motion of the eccentric 38. A connecting slider 39 and a slider case 40 are provided.
[0022] ポンプ駆動部 26の出力を前記エキセントリック 38及び前記コネクティングスライダ 3 9を介し、前記ピストンフット 32に固定される前記ピストン 31に伝達させ、前記ピストン 31を上下に変位させてポンプ室 41の容積を増減する。その際に発生する圧力変動 を利用して、流体を前記吸入口 27から前記排出口 28まで、一連の動作を繰り返して 一方向に流体を送流する。  The output of the pump drive unit 26 is transmitted to the piston 31 fixed to the piston foot 32 via the eccentric 38 and the connecting slider 39, and the piston 31 is displaced up and down to Increase or decrease the volume. Utilizing the pressure fluctuation generated at that time, a series of operations are repeated from the suction port 27 to the discharge port 28 to send the fluid in one direction.
[0023] 本発明でも第 1の実施形態と同様に、前記ポンプヘッド部 25と前記ポンプ駆動部 2 6が互いに上下方向に嵌合し、更に、スライド可能になるように凹凸形状 42、 43を設 け、また、前記ピストンフット 32の括れ部を係止できるように前記コネクティングスライ ダ 39に切欠き部を設け、これらの凹凸形状 42、 43、切り欠部、括れ部は、一定方向 にスライド可能になるように構成される。  In the present invention, similarly to the first embodiment, the pump head portion 25 and the pump driving portion 26 are vertically fitted to each other, and furthermore, the concave and convex shapes 42 and 43 are slidable. A notch is provided in the connecting slider 39 so that the constricted portion of the piston foot 32 can be locked, and these concave and convex shapes 42 and 43, the notched portion, and the constricted portion slide in a certain direction. Configured to be possible.
[0024] (第 3の実施の形態）  (Third Embodiment)
また、図 7、 8に示すように、フット部に切欠き部を設け、コネクティングスライダに括 れ部を設けることによつても、ポンプヘッド部とポンプ駆動部の着脱は容易に可能で あり、本発明と同様の効果を得ることができる。  Also, as shown in FIGS. 7 and 8, by providing a cutout portion in the foot portion and providing a constricted portion in the connecting slider, the pump head portion and the pump drive portion can be easily attached and detached. The same effect as the present invention can be obtained.
[0025] 図 7に示す実施形態はダイアフラム形式の往復動ポンプである。ダイアフラムフット 63に切欠き部を設け、コネクティングスライダ 64に括れ部を設けることにより、ポンプ ヘッド部 65とポンプ駆動部 66は容易に着脱可能となる。 [0026] また、図 8に示す実施形態はピストン形式の往復動ポンプである。ピストンフット 67 に切欠き部を設け、コネクティングスライダ 68に括れ部を設けることにより、ポンプへッ ド部 69とポンプ駆動部 70は容易に着脱可能となる。 The embodiment shown in FIG. 7 is a diaphragm type reciprocating pump. By providing a notch in the diaphragm foot 63 and a constriction in the connecting slider 64, the pump head 65 and the pump drive 66 can be easily attached and detached. The embodiment shown in FIG. 8 is a piston type reciprocating pump. By providing a notch in the piston foot 67 and a constriction in the connecting slider 68, the pump head 69 and the pump drive 70 can be easily attached and detached.
[0027] 以上より、ポンプヘッド部とポンプ駆動部がスライド嵌合することにより、容易に一行 程で着脱可能とし、ダイアフラムゃバルブが薬品等に浸食された場合、ポンプヘッド 部のみを交換可能としたため、ポンプ全体を交換する必要が無ぐその分ポンプ装置 の整備性にも優れる。  [0027] As described above, the pump head section and the pump drive section are slidably fitted to each other, so that the pump head section can be easily attached and detached in one stroke. If the diaphragm ゃ valve is eroded by chemicals or the like, only the pump head section can be replaced. As a result, there is no need to replace the entire pump, and the maintenance of the pump device is excellent.
産業上の利用可能性  Industrial applicability
[0028] 本発明は、ポンプヘッド部がスライド嵌合し、ポンプヘッド部とポンプ駆動部が容易 に一行程で着脱可能となるため、医療機器や化学分析機器等に用いる為の小型微 量流体供給装置にお!ヽて、接液部が使!ヽ捨て可能となる。 [0028] The present invention provides a small-sized microfluidic fluid for use in medical equipment, chemical analysis equipment, and the like, since the pump head section slide-fits and the pump head section and the pump drive section can be easily attached and detached in one stroke. In the supply device, the liquid contact part can be used and discarded.
図面の簡単な説明  Brief Description of Drawings
[0029] [図 1] (a)本発明のダイアフラム形式の往復動ポンプ及び従来のマイクロポンプの外 観を示す模式斜視図である。 （b)本発明のピストン形式の往復動ポンプの外観 を示す模式斜視図である。  FIG. 1 (a) is a schematic perspective view showing the appearance of a diaphragm type reciprocating pump of the present invention and a conventional micropump. (B) It is a schematic perspective view showing the appearance of the piston type reciprocating pump of the present invention.
[図 2] (a)本発明の第 1の実施の形態の図 1 (a)における P部断面図である。 (b) 本発明の第 1の実施の形態の図 1 (a)における Q部断面図である。  FIG. 2 (a) is a sectional view of a P part in FIG. 1 (a) of the first embodiment of the present invention. FIG. 2 (b) is a sectional view of a Q part in FIG. 1 (a) of the first embodiment of the present invention.
[図 3]図 2における T部断面図である。  FIG. 3 is a sectional view of a portion T in FIG. 2.
[図 4]図 2においてポンプヘッド部をスライドさせた状態の断面図である。  FIG. 4 is a sectional view showing a state where a pump head section is slid in FIG. 2.
[図 5] (a)本発明の第 2の実施の形態の図 1 (b)における R部断面図である。 （b) 本発明の第 2の実施の形態の図 1 (b)における S部断面図である。  FIG. 5 (a) is a sectional view of an R portion in FIG. 1 (b) of the second embodiment of the present invention. (B) It is a sectional view of the S section in FIG. 1 (b) of the second embodiment of the present invention.
[図 6] (a)従来のマイクロポンプの構造を示す図 1 (a)における P部断面図である。  FIG. 6 (a) is a cross-sectional view of a P part in FIG. 1 (a) showing a structure of a conventional micropump.
(b)従来のマイクロポンプの構造を示す図 1 (a)における Q部断面図である。  FIG. 1 (b) is a sectional view of a portion Q in FIG. 1 (a) showing a structure of a conventional micropump.
[図 7] (a)本発明のフット部とコネクティングスライダの形状を変更した一例を示す図 1 [FIG. 7] (a) FIG. 1 showing an example in which the shapes of the foot portion and the connecting slider of the present invention are changed.
(a)における P部断面図である。 （b)本発明のフット部とコネクティングスライダの 形状を変更した一例を示す図 1 (a)における Q部断面図である。 FIG. 4 is a cross-sectional view of a P part in FIG. FIG. 1 (b) is a cross-sectional view of a portion Q in FIG. 1 (a) showing an example in which the shapes of a foot portion and a connecting slider of the present invention are changed.
[図 8] (a)本発明のフット部とコネクティングスライダの形状を変更した一例を示す図 1 [FIG. 8] (a) FIG. 1 showing an example in which the shapes of the foot portion and the connecting slider of the present invention are changed.
(b)における R部断面図である。 （b)本発明のフット部とコネクティングスライダの 形状を変更した一例を示す図 1 (b)における S部断面図である 符号の説明 FIG. 4B is a cross-sectional view of the R portion in FIG. (B) The foot of the present invention and the connecting slider FIG. 1 is a cross-sectional view of an S portion in FIG.
ダイアフラム形式の往復動ポンプ  Diaphragm type reciprocating pump
2, 25, 60, 65, 69 ポンプヘッド部  2, 25, 60, 65, 69 Pump head
3, 26, 61, 66, 70 ポンプ駆動部  3, 26, 61, 66, 70 Pump drive
4, 27, 51 吸入口  4, 27, 51 Inlet
5, 28, 52 排出口  5, 28, 52 outlet
6, 7, 29, 30, 54 バルブ機構  6, 7, 29, 30, 54 Valve mechanism
8, 56 ダイァフラム  8, 56 Diaphragm
9, 59, 63 ダイァフラムフット  9, 59, 63 Diaphragm foot
10， 33, 53  10, 33, 53
11 34, 55 バルブケース  11 34, 55 Valve case
12 57 ダイアフラムマウント  12 57 Diaphragm mount
13 35, 58 ネジ  13 35, 58 Screw
14 36 モータ  14 36 Motor
15 37, 46 駆動軸  15 37, 46 Drive shaft
16 38, 47 エキセントリック  16 38, 47 Eccentric
17 39, 48, 64, 68 コネクティングスライダ  17 39, 48, 64, 68 Connecting slider
18 40, 50 スライダーケース  18 40, 50 slider case
19 41, 62 ポンプ室  19 41, 62 Pump room
20 切欠き部  20 Notch
21 22, 42, 43 凹凸形状  21 22, 42, 43 Uneven shape
23 括れ部  23 Constriction
24 ピストン形式の往復動ポンプ  24 piston type reciprocating pump
31 ピストン  31 piston
32 67 ピストンフット  32 67 Piston foot
44 従来タイプのダイァフラム型マイクロポンプ 45 小型モータ 49 スライダ'カム機構 44 Conventional diaphragm-type micropump 45 Small motor 49 Slider 'cam mechanism

Claims

請求の範囲 The scope of the claims
[1] ポンプヘッド部とポンプ駆動部を有し、ポンプヘッド部には、吸入口、排出口、及び 流体の流路を吸入側力 排出側に決定するバルブ構造と、流体の流路と、ポンプ室 と、そのポンプ室の容積を変動させる部品と、それに固定されたフット部を備え、ボン プ駆動部には、駆動源力 の出力を伝えるコネクティングスライダを備える往復動ポ ンプ構造において、  [1] A pump head unit and a pump drive unit, wherein the pump head unit has a suction port, a discharge port, and a valve structure that determines a fluid flow path on a suction side force discharge side, a fluid flow path, In a reciprocating pump structure including a pump chamber, a component for changing the volume of the pump chamber, and a foot portion fixed to the pump chamber, and a pump driving section including a connecting slider for transmitting an output of a driving source force,
コネクティングスライダの一端に設けられたテーパのついた略 U字型の切欠き部に The tapered, generally U-shaped notch at one end of the connecting slider
、フット部に設けられた上下にテーパのついた括れ部を係止可能にし、また、ポンプ ヘッド部とポンプ駆動部とが上下方向に嵌合するように凹凸形状が設けられ、スライ ド嵌合されることを特徴とした往復動ポンプ構造。 The upper and lower tapered constrictions provided on the foot can be locked, and the pump head and the pump drive are provided with an uneven shape so that they fit in the vertical direction. Reciprocating pump structure.
[2] 請求項 1記載の往復動ポンプ構造において、ポンプ構造がダイアフラム形式である ことを特徴とした往復動ポンプ構造。  [2] The reciprocating pump structure according to claim 1, wherein the pump structure is a diaphragm type.
[3] 請求項 1記載の往復動ポンプ構造において、ポンプ構造がピストン形式であること を特徴とした往復動ポンプ構造。 [3] The reciprocating pump structure according to claim 1, wherein the pump structure is a piston type.
[4] 請求項 1乃至 3記載の往復動ポンプ構造において、 [4] The reciprocating pump structure according to claims 1 to 3,
フット部に設けられたテーパのついた略 U字型の切欠き部に、コネクティングスライ ダの一端に設けられた上下にテーパのついた括れ部を係止可能にし、また、ポンプ ヘッド部とポンプ駆動部とが上下方向に嵌合するように凹凸形状が設けられ、スライ ド嵌合されることを特徴とした往復動ポンプ構造。  A tapered, generally U-shaped notch in the foot allows a vertically tapered neck at one end of the connecting slider to be locked. A reciprocating pump structure characterized in that an uneven shape is provided so that the driving unit and the driving unit are fitted in a vertical direction, and the driving unit is slide-fitted.
PCT/JP2005/003374 2004-03-05 2005-03-01 Reciprocating pump structure with detachable pump head part WO2005085639A1 (en)

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GB2432196A (en) * 2005-11-09 2007-05-16 Dlp Ltd Diaphragm pump
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US8015912B2 (en) 2005-11-09 2011-09-13 Dlp Limited Diaphragm pump having a twist and lock fastener
JP2010242698A (en) * 2009-04-09 2010-10-28 Tacmina Corp Pump
US8337175B2 (en) 2009-12-22 2012-12-25 Smith & Nephew, Inc. Disposable pumping system and coupler
US8932269B2 (en) 2009-12-22 2015-01-13 Smith & Nephew, Inc. Disposable pumping system and coupler
US9341184B2 (en) 2009-12-22 2016-05-17 Smith & Nephew, Inc. Disposable pumping system and coupler
ES2435504R1 (en) * 2012-06-18 2014-03-06 Samoa Industrial, S.A. Shaft, membranes and their coupling devices for fluid pumps
JP2015102093A (en) * 2013-11-27 2015-06-04 ガードナー デンバー トーマス インコーポレーテッドＧａｒｄｎｅｒ Ｄｅｎｖｅｒ Ｔｈｏｍａｓ，Ｉｎｃ． Pump having interchangeable heads
JP2017172466A (en) * 2016-03-24 2017-09-28 多田プラスチック工業株式会社 Diaphragm Pump
CN107228066A (en) * 2016-03-24 2017-10-03 多田塑料工业株式会社 Membrane pump
CN107228066B (en) * 2016-03-24 2019-09-24 多田塑料工业株式会社 Diaphragm pump

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