JPH0316060U

JPH0316060U -

Info

Publication number: JPH0316060U
Application number: JP1990029954U
Authority: JP
Priority date: 1990-03-23
Filing date: 1990-03-23
Publication date: 1991-02-18

Description

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

第１図は液体クロマトグラフの説明図、第２図
は従来のチユーブの流路接続装置を示す断面図、
第３図は液体クロマトグラフにより得られるチヤ
ート図であつて、Ａはデツドボリユームが無い場
合のチヤート図、Ｂはデツドボリユームが有る場
合のチヤート図、第４図乃至第６図は本考案に係
るチユーブの流路接続装置の夫々別の実施例を示
す断面図である。３１……押しボルト、３２……チユーブ、３２
ａ……先端平面部、３３……フエラル、３４……
継手、３５……接続口部、３５ａ……底部、３６
……円筒形パツキン、３６ａ……チユーブ挿入凹
部、３６ｂ……液体流路、３６ｃ……第１シール
座面、３６ｃ……第２シール座面。 Figure 1 is an explanatory diagram of a liquid chromatograph, Figure 2 is a sectional view showing a conventional tube flow path connection device,
FIG. 3 is a chart obtained by a liquid chromatograph, where A is a chart without a dead volume, B is a chart with a dead volume, and FIGS. 4 to 6 are charts of the tube according to the present invention. FIG. 7 is a cross-sectional view showing different embodiments of the flow path connecting device. 31... Push bolt, 32... Tube, 32
a... Tip flat part, 33... Ferrule, 34...
Joint, 35...Connection port, 35a...Bottom, 36
... Cylindrical packing, 36a ... Tube insertion recess, 36b ... Liquid flow path, 36c ... First seal seat surface, 36c ... Second seal seat surface.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

接続口部に螺入される押圧部材によつて、チユ
ーブ先端近傍に固着した保持部材を押圧して、流
路を有する接続口部にチユーブを液密的に接続す
る液体クロマトグラフの流路接続装置において、
チユーブ挿入凹部と、これに連なる液体流路と、
該チユーブ挿入凹部内の液体流路の周囲に形成し
た第１シール座面と、前記接続口部の底部に対抗
する第２シール座面とを有する円筒形パツキンを
、前記接続口部に装填し、かつ前記チユーブ挿入
凹部に挿入されたチユーブの先端平面部を前記第
１シール座面に液密的に圧接せしめるとともに、
前記第２シール座面を接続口部の底部に圧接せし
めたことを特徴とする液体クロマトグラフの流路
接続装置。 A flow path connection for a liquid chromatograph in which a holding member fixed near the tip of the tube is pressed by a pressing member screwed into the connection port to fluid-tightly connect the tube to a connection port having a flow path. In the device,
A tube insertion recess, a liquid flow path connected to the tube insertion recess,
A cylindrical packing having a first sealing surface formed around the liquid flow path in the tube insertion recess and a second sealing surface opposing the bottom of the connecting port is loaded into the connecting port. , and bringing a flat end portion of the tube inserted into the tube insertion recess into fluid-tight pressure contact with the first seal seat surface,
A channel connection device for a liquid chromatograph, characterized in that the second seal seat surface is brought into pressure contact with the bottom of the connection port.