JPS6387564U - - Google Patents

Info

Publication number
JPS6387564U
JPS6387564U JP18246986U JP18246986U JPS6387564U JP S6387564 U JPS6387564 U JP S6387564U JP 18246986 U JP18246986 U JP 18246986U JP 18246986 U JP18246986 U JP 18246986U JP S6387564 U JPS6387564 U JP S6387564U
Authority
JP
Japan
Prior art keywords
motor
discharge side
sensor member
speed rotation
ball
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.)
Pending
Application number
JP18246986U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP18246986U priority Critical patent/JPS6387564U/ja
Publication of JPS6387564U publication Critical patent/JPS6387564U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Reciprocating Pumps (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例を示す装置の構成図
、第２図は同上装置における電極の構造を示す断
面図、第３，４図は、それぞれ本考案の他の実施
例を示す装置の断面図、及び第５図は従来の液体
クロマトグラフ用送液ポンプの送液パターンを示
す説明図である。 １……プランジヤポンプ本体、１ａ……プラン
ジヤ、１ｂ……シリンダ、３……吸引側逆止弁、
４……吐出側逆止弁、４ａ……弁座シート、４ｂ
……ボールシート、４ｃ……ボール、５，５……
電極、１０，１１……導光材、２１……磁気セン
サ。 Fig. 1 is a configuration diagram of an apparatus showing one embodiment of the present invention, Fig. 2 is a sectional view showing the structure of an electrode in the same device, and Figs. 3 and 4 are apparatuses showing other embodiments of the invention. and FIG. 5 are explanatory diagrams showing a liquid feeding pattern of a conventional liquid chromatograph liquid feeding pump. 1...Plunger pump body, 1a...Plunger, 1b...Cylinder, 3...Suction side check valve,
4...Discharge side check valve, 4a...Valve seat, 4b
...Ball seat, 4c...Ball, 5,5...
Electrode, 10, 11... Light guide material, 21... Magnetic sensor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 可変速度型モータに接続されてシリンダ内でプ
ランジヤが往復動するとともに、吸引側と吐出側
に逆止弁を備えたポンプの前記吐出側逆止弁のボ
ールが閉塞位置を接離したことを検出するセンサ
部材を設けるとともに、前記センサ部材からの信
号により前記モータを高速回転から低速回転に切
換える制御回路を備えたことを特徴とする高速液
体クロマトグラフ用移動相送液装置。 A plunger connected to a variable speed motor reciprocates within a cylinder, and detects when the ball of the discharge side check valve of a pump equipped with check valves on the suction side and discharge side approaches and leaves the closed position. What is claimed is: 1. A mobile phase liquid feeding device for a high performance liquid chromatograph, comprising: a sensor member for rotating the motor; and a control circuit for switching the motor from high-speed rotation to low-speed rotation based on a signal from the sensor member.
JP18246986U 1986-11-27 1986-11-27 Pending JPS6387564U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18246986U JPS6387564U (en) 1986-11-27 1986-11-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18246986U JPS6387564U (en) 1986-11-27 1986-11-27

Publications (1)

Publication Number Publication Date
JPS6387564U true JPS6387564U (en) 1988-06-07

Family

ID=31128297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18246986U Pending JPS6387564U (en) 1986-11-27 1986-11-27

Country Status (1)

Country Link
JP (1) JPS6387564U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011013285A1 (en) * 2009-07-28 2011-02-03 株式会社 日立ハイテクノロジーズ Liquid supply device using check valve and reactive liquid chromatography system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011013285A1 (en) * 2009-07-28 2011-02-03 株式会社 日立ハイテクノロジーズ Liquid supply device using check valve and reactive liquid chromatography system
JP2011027046A (en) * 2009-07-28 2011-02-10 Hitachi High-Technologies Corp Liquid supply device using check valve and reactive liquid chromatography system
US8551423B2 (en) 2009-07-28 2013-10-08 Hitachi High-Technologies Corporation Liquid supply device using check valve and reactive liquid chromatography system

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