Gas chromatography column connector
A gas chromatographic column and chromatographic column technology, applied in the field of gas chromatographic column connectors, can solve the problems of difficult air tightness control, time-consuming and labor-intensive problems, and achieve the effect of solving looseness and tight connection
Active Publication Date: 2020-09-11
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, the existing chromatographic column connectors need to be installed with tools, and the airtightness is difficult to control, so the chromatographic column is often cut off, which is time-consuming and laborious to use
Method used
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[0020] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] Please refer to Figure 1 to Figure 3 As shown, a gas chromatography column connector includes a thumb screw 1 , a thumb nut 4 , a column connecting liner 6 , a support pad 7 and an anti-loosening spring 8 .
[0022] The thumb screw 1 includes a screw fastening rod 2 and an ear piece arranged on the outer periphery of the screw fastening rod 2 . The screw fastening rod 2 is a hollow structure with an open end, which is used for socketing with the chromatographic column connecting liner 6 , and the outer wall of the end is provided with a hand screw outer thread 3 , and the center of the other end is provided with a screw chromatographic column hole 9 .
[0023] The thumb nut 4 includes a nut fastening cap 5 and ear pieces ...
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The invention discloses a gas chromatography column connector. The gas chromatography column connector comprises a hand screw, a hand nut, a chromatographic column connecting lining pipe, supporting pads and anti-loosening springs; the hand screw and the hand nut are each of a hollow structure with one end open, and after the hand screw and the hand nut are in screwed connection, a cylindrical cavity is formed in the hand screw and the hand nut; the chromatographic column connecting lining pipe is arranged in the cylindrical cavity in a sleeved manner, one end of the chromatographic column connecting lining pipe is connected with the hand screw through one supporting pad and one anti-loosening spring, and the other end of the chromatographic column connecting lining pipe is connected withthe hand nut through the other supporting pad and the other anti-loosening spring; and the hand screw is provided with a screw chromatographic column hole, the hand nut is provided with a nut chromatographic column hole, the supporting pads are provided with through holes, the chromatographic column connecting lining pipe is provided with a chromatographic column channel, and the screw chromatographic column hole, one through hole, the chromatographic column channel, the other through hole and the nut chromatographic column hole communicate in sequence to form a chromatographic column installation channel. According to the gas chromatographic column connector, two chromatographic columns can be well connected just by hand screwing; and besides, the situation that the test result is affected by frequent temperature rise and fall air leakage will not occur, the use efficiency of the instrument is improved, the service life of the instrument is prolonged, and the chromatographic columns are protected.
Description
technical field [0001] The invention relates to the field of analytical testing instruments, in particular to a gas chromatography column connector. Background technique [0002] In the analysis and testing process of gas chromatography-mass spectrometry, it is usually necessary to install a pre-column to solve the problem of high boiling point component pollution, and install a vacuum damping capillary to solve the problem of vacuum release when changing columns. However, the existing chromatographic column connectors need to be installed with tools, and the airtightness is difficult to control, so the chromatographic column is often cut off, which is time-consuming and laborious to use. Contents of the invention [0003] In order to solve the above problems, the present invention provides a gas chromatographic column connector, which can connect two chromatographic columns just by hand-tightening, and will not affect the test results due to frequent heating and cooling, ...
Claims
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IPC IPC(8): F16B37/14F16B37/16F16B35/06F16B35/04F16B39/24F16B39/26F16B43/00F16B7/06G01N30/60
CPCF16B7/06F16B35/041F16B35/06F16B37/145F16B37/16F16B39/24F16B39/26F16B43/001G01N30/6039
Inventor 刘世君王小曼梁正付娟卢思
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI