JP2510135Y2 - Peristaltic pump - Google Patents
Peristaltic pumpInfo
- Publication number
- JP2510135Y2 JP2510135Y2 JP12782989U JP12782989U JP2510135Y2 JP 2510135 Y2 JP2510135 Y2 JP 2510135Y2 JP 12782989 U JP12782989 U JP 12782989U JP 12782989 U JP12782989 U JP 12782989U JP 2510135 Y2 JP2510135 Y2 JP 2510135Y2
- Authority
- JP
- Japan
- Prior art keywords
- peristaltic pump
- tube
- roller
- tube retainer
- retainer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、ペリスタポンプ（しごきポンプ）、特に化
学分析機器における試料液等の送液に使用されるペリス
タポンプの改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of a peristaltic pump (ironing pump), particularly a peristaltic pump used for feeding a sample liquid or the like in a chemical analysis instrument.
（従来の技術） 従来のペリスタポンプは、チューブ押えに、柔軟なチ
ューブを当て、回転体の周囲に回転可能に取り付けられ
たローラを回動させて該チューブをしごき、流体を送り
出していた。(Prior Art) In a conventional peristaltic pump, a flexible tube is applied to a tube retainer, and a roller rotatably mounted around a rotating body is rotated to squeeze the tube to deliver fluid.
この、チューブ押えやローラは、チューブが老朽化し
亀裂が生じて液漏れがあった場合の腐蝕を避けるためポ
リアセタール等の樹脂製のものを用いている。The tube retainer and the roller are made of resin such as polyacetal in order to avoid corrosion when the tube deteriorates and cracks to cause liquid leakage.
（考案が解決しようとする課題） しかしながら、従来のペリスタポンプでは、例えば検
出部に電極を用いるイオン濃度測定装置など、試料液中
の成分の電気的特性を検出して分析する化学分析機器の
試料液の送液に用いた場合、試料液が流れていない状態
でも、第２図に示す検出データのa1、a2、a3のように原因
不明のノイズが生じて分析精度を低下させていた。(Problems to be solved by the invention) However, in the conventional peristaltic pump, for example, a sample liquid of a chemical analysis device that detects and analyzes the electrical characteristics of components in the sample liquid, such as an ion concentration measuring device that uses an electrode for the detection unit. When it was used for the liquid transfer, the noise of unknown cause was generated like the detection data a 1 , a 2 , and a 3 shown in Fig. 2 and the analysis accuracy was degraded even when the sample liquid was not flowing. .
本考案者は、研究の結果、このノイズの原因が、ペリ
スタポンプのチューブしごき部で発生する静電気にある
ことを解明した。As a result of research, the present inventor has clarified that the cause of this noise is static electricity generated in the tube ironing part of the peristaltic pump.
即ち、チューブを樹脂製のローラでしごくことにより
その部分で静電気が発生し、従来のローラやチューブ押
えはポリアセタール等の安価な樹脂製（不導電性）であ
ったため、チューブが帯電し、これが電気的検出部に悪
影響を与えて、ノイズを発生することを発見した。That is, when the tube is squeezed with a resin roller, static electricity is generated at that portion, and since the conventional roller and tube retainer were made of an inexpensive resin (non-conductive) such as polyacetal, the tube was charged and It was discovered that it adversely affects the static detection part and generates noise.
本考案は、この解明に基づき極めて簡単な構成によ
り、上記ノイズの発生を防止したペリスタポンプを提供
するこを目的とする。An object of the present invention is to provide a peristaltic pump which prevents the above noise from being generated by an extremely simple structure based on this clarification.
（課題を解決するための手段） 本考案に係るペリスタポンプは、上記目的を達成する
ため、柔軟なチューブをチューブ押えに当てて、これを
ローラでしごいて流体を送り出すペリスタポンプにおい
て、前記チューブ押え又はローラの少なくとも一方を導
電性樹脂で構成したことを特徴とする。(Means for Solving the Problems) In order to achieve the above-mentioned object, the peristaltic pump according to the present invention is a peristaltic pump in which a flexible tube is applied to a tube retainer and the fluid is squeezed by rollers to deliver the fluid. At least one of the rollers is made of a conductive resin.
（作用） チューブ押え又はローラの少なくとも一方を導電性樹
脂で構成したので、この部分で発生した静電気は当該チ
ューブ押え又はローラを介して放電され、チューブが帯
電しない。(Operation) Since at least one of the tube retainer and the roller is made of the conductive resin, the static electricity generated at this portion is discharged through the tube retainer or the roller, and the tube is not charged.
また、樹脂製なので、万一液漏れが生じても、腐蝕が
起きない。Further, since it is made of resin, even if a liquid leaks, corrosion does not occur.
（実施例） 以下第１図により、本考案の一実施例を説明するが、
本考案の構成はこの実施例に限られるものではない。(Embodiment) An embodiment of the present invention will be described below with reference to FIG.
The configuration of the present invention is not limited to this embodiment.
第１図（イ）は、本実施例のペリスタポンプの正面
図、第１図（ロ）は、同側面図を示す。FIG. 1A shows a front view of the peristaltic pump of this embodiment, and FIG. 1B shows a side view thereof.
１は、ペリスタポンプ本体を示し、本体１の側面の中
ほどには、超高分子量ポリエチレンなどの導電性樹脂
（例えば商品名タキロン・ウルモラUP-309:表面抵抗率1
06〜107Ω）で形成されたチューブ押え２がピン３によ
り回転可能に取り付けられており、その下には回転体４
が回転軸５に固持され、この回転軸５はペリスタポンプ
本体１内に内蔵された回転駆動手段（図示せず）に連結
されている。回転体４は２枚の円板4a,4bから構成さ
れ、この２枚の円板の間に、複数のローラ６が円板の周
囲から少しはみでるようにして、均等間隔で回転可能に
取付けられている。Reference numeral 1 denotes a main body of the peristaltic pump, and a conductive resin such as ultra-high molecular weight polyethylene (for example, Takiron Ulmora UP-309: surface resistivity 1 is provided in the middle of the side surface of the main body 1).
A tube retainer 2 formed of 0 6 to 10 7 Ω) is rotatably attached by a pin 3, and a rotating body 4 is provided below it.
Is fixed to the rotary shaft 5, and the rotary shaft 5 is connected to a rotary drive means (not shown) built in the peristaltic pump body 1. The rotating body 4 is composed of two discs 4a and 4b, and a plurality of rollers 6 are rotatably mounted at equal intervals between the two discs so that the rollers 6 slightly protrude from the periphery of the discs. .
このローラ６はチューブ押え２と同じ導電性樹脂で形
成されている。The roller 6 is made of the same conductive resin as the tube retainer 2.
チューブ押え２と回転体４に間には、柔軟な樹脂性チ
ューブ７が配置され、チューブ押え２の上方には、この
チューブ押え２を回転体４方向に付勢するパッド８が、
パッド保持部９により保持されている。パッド８の位置
は、パッド保持部９のネジ9aをつまみ9bにより回転する
ことにより適宜調整できるようになっている。A flexible resin tube 7 is arranged between the tube retainer 2 and the rotating body 4, and a pad 8 for urging the tube retainer 2 toward the rotating body 4 is provided above the tube retainer 2.
It is held by the pad holder 9. The position of the pad 8 can be appropriately adjusted by rotating the screw 9a of the pad holding portion 9 with the knob 9b.
チューブ７のＡ方向は電気的検出器（たとえばイオン
電極）を介して試料液注入部に連結されており、Ｂ方向
は廃液部に連結されている。The direction A of the tube 7 is connected to the sample liquid injection part via an electrical detector (for example, an ion electrode), and the direction B is connected to the waste liquid part.
前記図示しない回転駆動手段で回転体４を矢印の方向
に回転させると、ローラ６が、チューブ押え２に押さえ
られたチューブ７を回転方向にしごき、チューブ７内に
試料液等を吸引しＢ方向に送り出す。第２図（Ｂ）は、
この考案を実施した場合の、イオン濃度測定装置の検出
データであるが、試料液が流れていない場合には、b1、b
2、b3のようにノイズの発生を最少限にとどめることがで
きた。When the rotating body 4 is rotated in the direction of the arrow by the rotation driving means (not shown), the roller 6 squeezes the tube 7 held by the tube retainer 2 in the rotating direction, sucks the sample solution or the like into the tube 7 and moves in the direction B Send to. FIG. 2 (B) shows
This is the detection data of the ion concentration measuring device when this invention was implemented, but when the sample solution is not flowing, b 1 , b
It was possible to minimize the generation of noise as in 2 and b 3 .
なお、本実施例では、チューブ押え２とローラ２の双
方を導電性樹脂で構成したが、どちらか一方を導電性樹
脂で構成するだけでもよい。In this embodiment, both the tube retainer 2 and the roller 2 are made of conductive resin, but either one may be made of conductive resin.
また、チューブ押え２に導線を連結してこれをアース
し、または回転体４の円板4a,4bを導電性の物質で構成
し、これをアースすれば、静電気をより効果的に排除
し、更によい結果を得ることが可能となる。In addition, if a conductor is connected to the tube retainer 2 and grounded, or if the discs 4a and 4b of the rotating body 4 are made of a conductive material and grounded, the static electricity can be eliminated more effectively, It is possible to obtain even better results.
（考案の効果） 本考案は、以上のように構成したので、電気的検出器
に対して極めてノイズの少ないペリスタポンプを提供す
ることができる。(Effects of the Invention) Since the present invention is configured as described above, it is possible to provide a peristaltic pump with extremely low noise with respect to an electrical detector.
第１図（イ）は、本考案に係るペリスタポンプの一実施
例の正面図、第１図（ロ）は同側面図、第２図（Ａ）は
従来のペリスタポンプを用いたイオン濃度測定装置の検
出データ、第２図（Ｂ）は、本考案に係るペリスタポン
プを用いたイオン濃度測定装置における検出データ、を
それぞれ示す。 1:ペリスタポンプ本体、2:チューブ押え 4:回転体、6:ローラ 7:チューブ、8:パッドFIG. 1 (a) is a front view of an embodiment of a peristaltic pump according to the present invention, FIG. 1 (b) is a side view thereof, and FIG. 2 (a) is an ion concentration measuring device using a conventional peristaltic pump. The detection data, FIG. 2B shows the detection data in the ion concentration measuring device using the peristaltic pump according to the present invention, respectively. 1: Peristaltic pump body, 2: Tube retainer 4: Rotating body, 6: Roller 7: Tube, 8: Pad
Claims (1)
これをローラでしごいて流体を送り出すペリスタポンプ
において、前記チューブ押え又はローラの少なくとも一
方を導電性樹脂で構成したことを特徴とするペリスタポ
ンプ。1. A flexible tube is applied to the tube retainer,
A peristaltic pump for squeezing this with a roller to send out a fluid, wherein at least one of the tube retainer and the roller is made of a conductive resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12782989U JP2510135Y2 (en) | 1989-10-31 | 1989-10-31 | Peristaltic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12782989U JP2510135Y2 (en) | 1989-10-31 | 1989-10-31 | Peristaltic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0365877U JPH0365877U (en) | 1991-06-26 |
| JP2510135Y2 true JP2510135Y2 (en) | 1996-09-11 |
Family
ID=31675572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12782989U Expired - Lifetime JP2510135Y2 (en) | 1989-10-31 | 1989-10-31 | Peristaltic pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2510135Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009046406B4 (en) * | 2009-11-04 | 2012-04-26 | Fresenius Medical Care Deutschland Gmbh | peristaltic pump |
-
1989
- 1989-10-31 JP JP12782989U patent/JP2510135Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0365877U (en) | 1991-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4929313A (en) | Amperometric electrochemical ion sensors and method for determining ion concentration | |
| RU97117939A (en) | MATRIX SENSOR FOR DETECTING ANALYTES IN LIQUIDS | |
| ES2144737T3 (en) | SET OF SENSORS TO DETECT ANALYZES IN FLUIDS. | |
| DE3688078D1 (en) | AGENT FOR ELECTRICALLY CONNECTING ELECTRODES TO VARIOUS SURFACES OF PIEZOELECTRIC POLYMER FILMS. | |
| DK0923722T3 (en) | Electrochemical cell | |
| CA2105510A1 (en) | Amperometric measuring device having an electrochemical sensor | |
| JP2510135Y2 (en) | Peristaltic pump | |
| US5225785A (en) | Apparatus for sensing the thickness of a moving sheet of film | |
| JPH06273304A (en) | Quartz oscillator for chemical measurement and chemical measuring equipment | |
| US4829833A (en) | Liquid impedance flow monitors | |
| ATE165586T1 (en) | SELF-GENERATING DEVICE FOR TREATING LIQUIDS USING EXTERNAL ELECTRODES | |
| GB2027897A (en) | Flow-throug ionic test cell | |
| US5200052A (en) | Ion concentration analyzer | |
| JPH08313481A (en) | Free chlorine measuring device | |
| JPS5938752Y2 (en) | pulse generator | |
| JPS6474440A (en) | Raindrop detecting device | |
| EP0314688A1 (en) | Method and apparatus for amperometric detection | |
| CN108982606A (en) | Sarcosine electrochemical detection method based on polyamic acid and sarcosine oxidase | |
| Lee et al. | Influence of Channel Thickness and Counterion Composition on the Performance and Stability of Interdigitated Organic Electrochemical Transistors (OECTs) Using Electrochemically Deposited PEDOT | |
| SU796663A1 (en) | Device for measuring geometrical dimensions of bodies of revolution | |
| JPH074566Y2 (en) | Rotating electrode analyzer | |
| JPS6273110A (en) | Slant angle sensor | |
| JPS60225023A (en) | Angle sensor | |
| JPH0339195Y2 (en) | ||
| FR2410817A1 (en) | Liq. e.g. blood change of state detector - measures cyclic variation in electrical resistance as agitator rotates |