CN111649050B - Gas chromatography column connector - Google Patents
Gas chromatography column connector Download PDFInfo
- Publication number
- CN111649050B CN111649050B CN202010441892.4A CN202010441892A CN111649050B CN 111649050 B CN111649050 B CN 111649050B CN 202010441892 A CN202010441892 A CN 202010441892A CN 111649050 B CN111649050 B CN 111649050B
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- CN
- China
- Prior art keywords
- hand
- chromatographic column
- screwed
- screw
- nut
- 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.)
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Links
- 238000004817 gas chromatography Methods 0.000 title claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/14—Cap nuts; Nut caps or bolt caps
- F16B37/145—Sleeve nuts, e.g. combined with bolts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/16—Wing-nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
- F16B39/26—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object with spring washers fastened to the nut or bolt-head
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
- F16B43/001—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/06—Turnbuckles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/60—Construction of the column
- G01N30/6034—Construction of the column joining multiple columns
- G01N30/6039—Construction of the column joining multiple columns in series
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention discloses a gas chromatographic column connector, which comprises a hand-screwed screw, a hand-screwed nut, a chromatographic column connecting liner tube, a supporting pad and a locking spring, wherein the hand-screwed screw is connected with the hand-screwed nut; the hand-screwed screw and the hand-screwed nut are both hollow structures with one open ends, and a cylindrical cavity is formed in the hand-screwed screw and the hand-screwed nut after the hand-screwed screw and the hand-screwed nut are screwed; the chromatographic column connecting liner tube is sleeved in the cylindrical cavity, one end of the chromatographic column connecting liner tube is connected with the hand-screwed screw through a supporting pad and a locking spring, and the other end of the chromatographic column connecting liner tube is connected with the hand-screwed nut through the supporting pad and the locking spring; the hand-screwed screw is provided with a screw chromatographic column hole, the hand-screwed nut is provided with a nut chromatographic column hole, the supporting pad is provided with a through hole, and the chromatographic column connecting liner tube is provided with a chromatographic column channel which is communicated in sequence to form a chromatographic column mounting channel. According to the gas chromatographic column connector, two chromatographic columns can be connected well only by screwing by hands, the test result cannot be influenced by frequent temperature rise, temperature fall and air leakage, the service efficiency and the service life of an instrument are improved, and the chromatographic columns are protected.
Description
Technical Field
The invention relates to the field of analytical test instruments, in particular to a gas chromatographic column connector.
Background
In the analysis and test process of a gas chromatography-mass spectrometer, a section of pre-column is generally required to be additionally arranged to solve the problem of high-boiling-point component pollution, and a section of vacuum damping capillary is additionally arranged to solve the problem of vacuum leakage required for column replacement. However, the existing chromatographic column connector needs to be installed by using a tool when in use, the air tightness is difficult to control, and the chromatographic column is often cut off, so that the use is time-consuming and labor-consuming.
Disclosure of Invention
In order to solve the problems, the invention provides the gas chromatographic column connector, two chromatographic columns can be connected well only by screwing by hands, the test result cannot be influenced by frequent temperature rise, temperature fall and air leakage, the service efficiency and the service life of the instrument are improved, and the chromatographic columns are protected.
In order to achieve the purpose, the invention adopts the technical scheme that:
a gas chromatographic column connector comprises a hand-screwed screw, a hand-screwed nut, a chromatographic column connecting liner tube, a supporting pad and a locking spring;
the hand-screwed screw and the hand-screwed nut are both hollow structures with one open ends, and a cylindrical cavity is formed in the hand-screwed screw and the hand-screwed nut after the hand-screwed screw and the hand-screwed nut are screwed;
the chromatographic column connecting liner tube is sleeved in the cylindrical cavity, one end of the chromatographic column connecting liner tube is connected with the hand-screwed screw through a supporting pad and a locking spring, and the other end of the chromatographic column connecting liner tube is connected with the hand-screwed nut through the supporting pad and the locking spring;
the hand-screwed screw is provided with a screw chromatographic column hole, the hand-screwed nut is provided with a nut chromatographic column hole, the supporting pad is provided with a through hole, and the chromatographic column connecting liner tube is provided with a chromatographic column channel which is communicated in sequence to form a chromatographic column mounting channel.
As a modification of the invention, the two ends of the chromatographic column channel of the chromatographic column connecting liner tube are conical outwards.
As an improvement of the invention, the supporting gasket is also provided with a groove for placing the universal graphite sealing gasket.
As an improvement of the invention, the hand-screwed screw and the hand-screwed nut are both provided with lugs which are convenient to screw.
Compared with the prior art, the invention has the beneficial effects that:
1. the two chromatographic columns can be connected well by screwing the screw rod by hand and screwing the nut by hand, so that the problem that tools are needed for installing the chromatographic column connector is solved, and the device is convenient and fast.
2. The problem of tight butt joint of chromatographic column joints is solved by using chromatographic columns with different inner diameters to connect the liner tubes.
3. Through install locking spring and supporting pad additional at hand screw rod and hand screw nut inside cavity both ends bottom, it is not hard up because of expend with heat and contract with cold arousing to have solved the chromatographic column connector.
Drawings
FIG. 1 is an overall schematic view of a gas chromatography column connector of the present invention;
FIG. 2 is an exploded view of the gas chromatography column connector of the present invention;
FIG. 3 is a front cross-sectional view of a gas chromatography column connector of the present patent;
description of reference numerals: 1-screwing the screw by hand; 2-screw fastening rod; 3-screwing the outer screw of the screw rod by hand; 4-screwing the nut by hand; 5-nut fastening cap; 6-connecting a liner tube with a chromatographic column; 7-a support pad; 8-a locking spring; 9-screw chromatographic column hole; 10-nut chromatographic column holes; 11-screwing the inner thread of the nut by hand; 12-chromatography column channel.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1 to 3, a gas chromatography column connector includes a hand-screwed screw 1, a hand-screwed nut 4, a column connecting liner 6, a support pad 7 and a locking spring 8.
The hand-screwed nut 4 comprises a nut fastening cap 5 and lug pieces arranged on the periphery of the nut fastening cap 5. Nut fastening cap 5 is the open cavity stair structure of one end, and the macropore that is close to the tip is equipped with hand and twists nut internal thread 11, and the aperture of keeping away from the tip is used for being connected bushing pipe 6 with the chromatographic column and cup joints, and 5 other end centers of nut fastening cap then are equipped with nut chromatographic column hole 10.
The hand-screwed screw rod 1 and the hand-screwed nut 4 are assembled together through the hand-screwed screw rod outer thread 3 and the hand-screwed nut inner thread 11, and a cylindrical cavity is formed inside the hand-screwed screw rod 1 and the hand-screwed nut 4 after the assembly.
The chromatographic column connecting liner tube 6 is internally provided with a circular pore canal which is used as a chromatographic column channel 12, and the two ends of the pore canal are conical so as to be convenient for the insertion of the chromatographic column. The chromatographic columns with different sizes can be connected with the liner tube 6 by the chromatographic column matched with the chromatographic column.
Supporting pad 7 and check spring 8 are 2, connect bushing pipe 6, supporting pad 7, check spring 8's mode location through check spring 8, supporting pad 7, chromatographic column in the cylindrical cavity that screw rod 1 and hand screwed nut 4 are constituteed is twisted to the hand.
The supporting pad 7 is also provided with a groove for placing a general graphite sealing gasket, and the center of the groove is provided with a through hole for the chromatographic column to pass through.
When the chromatographic column is used, the anti-loosening spring 8 and the supporting pad 7 are sequentially placed in the screw 1 by hand close to the bottom, and one chromatographic column sequentially penetrates through the screw chromatographic column hole 9, the anti-loosening spring 8, the supporting pad 7 and the universal graphite sealing pad; and a locking spring 8 and a supporting pad 7 are sequentially placed in the hand-screwed nut 4 and tightly attached to the bottom, and the other chromatographic column sequentially penetrates through a nut chromatographic column hole 10, the locking spring 8, the supporting pad 7 and the universal graphite sealing pad. After the fittings are sequentially penetrated, the two chromatographic columns are respectively inserted into the two ends of the chromatographic column channel 12 of the chromatographic column connecting liner tube 6, so that the two chromatographic columns are ensured to be inserted with almost the same length and are tightly butted. Through manual hand screw up screw rod outer silk 3 and hand screw up nut inner silk 11, with hand screw up screw rod 1 and hand screw up nut 4 assembly together, it is spacing with chromatographic column connection liner pipe 6 that the cylindrical cavity of forming is inside to rotate the fastening back hand screw up screw rod 1 and hand screw up nut 4. The screw rod fastening rod 2 and the nut fastening cap 5 can also be adjusted in tightness by using a spanner. Locking spring 8 is located supporting pad 7 below, and the hand is twisted screw rod 1 and the hand and is twisted 4 assembly fastening backs, and locking spring 8 gives supporting pad 7 certain support, prevents because of the not hard up gas leakage of chromatographic column connector that expend with heat and contract with cold arouses, makes the instrument test more stable.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (4)
1. A gas chromatography column connector, comprising: comprises a hand-screwed screw, a hand-screwed nut, a chromatographic column connecting liner tube, a supporting pad and a locking spring;
the hand-screwed screw and the hand-screwed nut are both hollow structures with one open ends, and a cylindrical cavity is formed in the hand-screwed screw and the hand-screwed nut after the hand-screwed screw and the hand-screwed nut are screwed;
the chromatographic column connecting liner tube is sleeved in the cylindrical cavity, one end of the chromatographic column connecting liner tube is connected with the hand-screwed screw through a supporting pad and a locking spring, and the other end of the chromatographic column connecting liner tube is connected with the hand-screwed nut through the supporting pad and the locking spring;
the hand-screwed screw is provided with a screw chromatographic column hole, the hand-screwed nut is provided with a nut chromatographic column hole, the supporting pad is provided with a through hole, and the chromatographic column connecting liner tube is provided with a chromatographic column channel which is communicated in sequence to form a chromatographic column mounting channel.
2. A gas chromatography column connector as recited in claim 1, wherein: the two ends of the chromatographic column channel of the chromatographic column connecting liner tube are conical outwards extending.
3. A gas chromatography column connector as recited in claim 1, wherein: the supporting pad is also provided with a groove for placing the universal graphite sealing pad.
4. A gas chromatography column connector as recited in claim 1, wherein: the hand-screwed screw rod and the hand-screwed nut are respectively provided with a lug piece convenient to screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010441892.4A CN111649050B (en) | 2020-05-22 | 2020-05-22 | Gas chromatography column connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010441892.4A CN111649050B (en) | 2020-05-22 | 2020-05-22 | Gas chromatography column connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111649050A CN111649050A (en) | 2020-09-11 |
| CN111649050B true CN111649050B (en) | 2021-07-20 |
Family
ID=72349707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010441892.4A Active CN111649050B (en) | 2020-05-22 | 2020-05-22 | Gas chromatography column connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111649050B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002086486A2 (en) * | 2001-04-20 | 2002-10-31 | Bayer Cropscience Ag | Chromatographic column with automatic axial compression by hydraulic means |
| CN202141702U (en) * | 2011-06-20 | 2012-02-08 | 苏州赛分科技有限公司 | Liquid phase chromatographic column |
| CN203479771U (en) * | 2010-10-29 | 2014-03-12 | 赛默菲尼根有限责任公司 | Device for connecting chromatographic column to pipeline |
| CN205027705U (en) * | 2015-08-14 | 2016-02-10 | 中国石油天然气股份有限公司 | Gas chromatography column valve connecting device |
| CN207421531U (en) * | 2017-11-10 | 2018-05-29 | 瓯亚管业有限公司 | A kind of feed pipe bracing means |
-
2020
- 2020-05-22 CN CN202010441892.4A patent/CN111649050B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002086486A2 (en) * | 2001-04-20 | 2002-10-31 | Bayer Cropscience Ag | Chromatographic column with automatic axial compression by hydraulic means |
| CN203479771U (en) * | 2010-10-29 | 2014-03-12 | 赛默菲尼根有限责任公司 | Device for connecting chromatographic column to pipeline |
| CN202141702U (en) * | 2011-06-20 | 2012-02-08 | 苏州赛分科技有限公司 | Liquid phase chromatographic column |
| CN205027705U (en) * | 2015-08-14 | 2016-02-10 | 中国石油天然气股份有限公司 | Gas chromatography column valve connecting device |
| CN207421531U (en) * | 2017-11-10 | 2018-05-29 | 瓯亚管业有限公司 | A kind of feed pipe bracing means |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111649050A (en) | 2020-09-11 |
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