Gas chromatograph-mass spectrometer interface device for printing ink detection

Abstract

The utility model discloses a gas chromatograph-mass spectrometer interface device for printing ink detection, which belongs to the technical field of printing ink detection, and comprises a sleeve, one end of the sleeve is fixedly connected with a chromatographic column body, one end of the chromatographic column body is fixedly sleeved with a mounting disc, one end of the sleeve is provided with a cover plate, and the cover plate is provided with an opening. During installation, only the insertion block needs to be aligned with the insertion groove to be inserted into the insertion groove, in the gradual insertion process, the reset spring conducts the action of compressing firstly and then resetting, the clamping column is clamped in the clamping hole, at the moment, the clamping column is clamped in the clamping hole, the clamping column is clamped in the clamping hole, the clamping column is clamped in the clamping hole, and the clamping column is clamped in the clamping hole. The sealing ring is inserted into the annular sealing groove, so that the sealing performance of the connection between the chromatographic column body and the main body part is improved, on the contrary, the locking of the insertion block can be released by only pulling the pull rod outwards, the sleeve is convenient to disassemble, the operation is convenient and fast, the sleeve is convenient to maintain and replace, and the practicability of the device is favorably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing ink detection technical field more specifically, and it is a kind of printing ink detection gas chromatograph-mass spectrometer interface device. BACKGROUND

[0002] Gas chromatograph-mass spectrometer is the instrument that gas chromatograph and mass spectrometer are combined and used, is a commonly used analytical instrument, is used to separate, detect and qualitative quantitative gas and volatile compound, is widely applied to environmental monitoring, food safety, chemical analysis etc.Field.For printing ink detection, gas chromatograph-mass spectrometer can be used to detect volatile organic compounds (VOCs) in ink, solvent component and other harmful substances.

[0003] When carrying out printing ink gas chromatograph-mass spectrometry analysis, gas chromatography (GC) part is responsible for separating the components in sample, and mass spectrometry (MS) part carries out qualitative and quantitative analysis on these components.In order to make ink sample can successfully enter GC-MS system, it needs to be equipped with some specific interface device.

[0004] Search the public number CN221745957U disclosed a kind of gas chromatograph-mass spectrometer interface device, the first connecting part of connecting shaft extends the end of sleeve and is sealed by screw and graphite sleeve combination and connected with chromatographic column of gas chromatograph module, its interface connection place usually adopts the combination of stainless screw and graphite pad to seal, installation and disassembly are more cumbersome, inconvenient to maintain, for this, we propose a kind of printing ink detection gas chromatograph-mass spectrometer interface device to solve the above problems. Utility model content

[0005] The utility model aims at solving the problems that the existing printing ink detection gas chromatograph-mass spectrometer interface device is connected with chromatographic column of gas chromatograph module more cumbersome, installation and disassembly are more time-consuming and laborious, inconvenient to maintain, and provides a kind of printing ink detection gas chromatograph-mass spectrometer interface device.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of printed ink detection gas chromatograph interface device, including sleeve, one end of the sleeve is fixedly connected with chromatographic column body, one end of the chromatographic column body is fixedly sleeved with mounting disc, one end of the sleeve is provided with cover plate, the inside of the sleeve is provided with main part, one end of the main part is fixedly connected with connector outside by cover plate extension, the both sides outer wall of the sleeve close to chromatographic column body one end is symmetrically provided with plug-in component, the both sides outer wall of the sleeve close to chromatographic column body one end is symmetrically opened and is inserted into slot, one end of the chromatographic column body is symmetrically fixedly connected with sleeve column, the inside of the sleeve column is fixedly installed with compression spring, one end of the compression spring is fixedly connected with plug-in block, the one side of the plug-in block is opened and is provided with clamping hole.

[0008] As further description of the above technical solution, the plug-in component includes the installation groove opened in the outer wall of the sleeve, one end of the installation groove is fixedly connected with baffle, the baffle is inserted with pull rod on one side, the pull rod is fixedly connected with moving block on one end of installation groove, the pull rod is sleeved with reset spring on one end close to moving block, the moving block is fixedly connected with clamping column matched with clamping hole on one side away from pull rod.

[0009] As further description of the above technical solution, the both sides of the moving block are symmetrically fixedly connected with sliding block, the both sides of the installation groove are symmetrically opened and are provided with sliding slot, and the sliding block and the sliding slot form sliding connection structure.

[0010] As further description of the above technical solution, the outer end of the clamping column and the plug-in block is rounded, and the clamping column is inserted into the clamping hole.

[0011] As further description of the above technical solution, one end of the connector is fixedly connected with sealing ring, and one end of the chromatographic column body is opened and is provided with annular sealing groove matched with the sealing ring.

[0012] As further description of the above technical solution, the outer wall of the main part is sleeved with heating pipe, the one end of the sleeve away from chromatographic column body is provided with boss, and the one end of the main part is provided with connecting shaft outside through the boss.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] When installing, only the plug-in block is inserted into the insertion slot, and in the process of gradually inserting, the reset spring is compressed and reset, so that the clamping column is clamped in the clamping hole, at this time, the sealing ring is inserted into the annular sealing groove, thereby improving the sealing performance of the connection between the chromatographic column body and the main part, and vice versa, only the pull rod is pulled outward, the pull rod drives the moving block to move outward along the installation groove, thereby driving the clamping column to move outward and separate from the clamping hole, so that the locking of the plug-in block is released, the sleeve is convenient to disassemble, the operation is convenient, the maintenance and replacement of the sleeve are convenient, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a kind of printed ink detection gas chromatography interface device overall structure schematic view.

[0016] Figure 2 It is a kind of printed ink detection gas chromatography interface device sleeve profile and chromatographic column body explosion structure schematic view.

[0017] Figure 3 It is the A enlarged structure schematic view of Figure 2

[0018] Figure 4 It is the B enlarged structure schematic view of Figure 2

[0019] Reference signs: 1, sleeve;2, chromatographic column body;3, plug-in assembly;31, installation groove;32, pull rod;33, reset spring;34, moving block;35, clamping column;36, baffle;37, sliding groove;38, sliding block;4, mounting disc;5, boss;6, connecting shaft;7, main body;8, heating pipe;9, cover plate;10, connector;11, sealing ring;12, annular sealing groove;13, sleeve column;14, compression spring;15, plug;16, clamping hole;17, insertion slot. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings, which show several embodiments of the present application, but the present application can be realized in different forms, and is not limited to the embodiments described in the text, on the contrary, these embodiments are provided to make the disclosed content of the present application more thorough and comprehensive.

[0021] The utility model provides a kind of printed ink detection gas chromatography interface device, please refer to Figures 1-4 As shown in the drawing, it includes sleeve 1, one end of sleeve 1 is fixedly connected with chromatographic column body 2, one end of chromatographic column body 2 is fixedly sleeved with mounting disc 4, one end of sleeve 1 is provided with cover plate 9, the inside of sleeve 1 is provided with main body 7, one end of main body 7 fixedly connected with connector 10 extending to outside through cover plate 9, plug-in assembly 3 is symmetrically arranged on the outer wall of one end of sleeve 1 close to chromatographic column body 2, insertion slot 17 is symmetrically opened on one end of sleeve 1 close to chromatographic column body 2, sleeve column 13 is symmetrically fixedly connected on one end of chromatographic column body 2, compression spring 14 is fixedly installed in the inside of sleeve column 13, one end of compression spring 14 is fixedly connected with plug 15, clamping hole 16 is opened on one side of plug 15.

[0022] ​​In the embodiments of the present application, during use, when installing, only need to align the plug block 15 with the insertion slot 17 and insert, in the process of gradually inserting, the reset spring 33 first compresses and then resets, so that the clamping column 35 is clamped in the clamping hole 16, at this time, the sealing ring 11 is inserted into the annular sealing groove 12, and the sealing ring 11 is more tightly inserted with the annular sealing groove 12 through the compression of the compression spring 14, so as to improve the sealing performance of the connection between the chromatographic column body 2 and the main body 7, on the contrary, only need to pull the pull rod 32 outward, the pull rod 32 drives the moving block 34 to move outward along the installation slot 31, so as to drive the clamping column 35 to move outward and separate from the clamping hole 16, so as to release the locking of the plug block 15, facilitate the disassembly of the sleeve 1, convenient operation, convenient maintenance and replacement of the sleeve 1.

[0023] Further, the plug-in assembly 3 comprises the installation slot 31 formed on the outer wall of the sleeve 1, one end of the installation slot 31 is fixedly connected with the baffle 36, one side of the baffle 36 is inserted with the pull rod 32, one end of the pull rod 32 located at one end of the installation slot 31 is fixedly connected with the moving block 34, one end of the pull rod 32 close to the moving block 34 is sleeved with the reset spring 33, one side of the moving block 34 away from the pull rod 32 is fixedly connected with the clamping column 35 matched with the clamping hole 16, during use, the plug block 15 is inserted into the insertion slot 17, in the process of gradually inserting, the reset spring 33 first compresses and then resets, so that the clamping column 35 is clamped in the clamping hole 16, on the contrary, only need to pull the pull rod 32 outward, the pull rod 32 drives the moving block 34 to move outward along the installation slot 31, so as to drive the clamping column 35 to move outward and separate from the clamping hole 16, so as to release the locking of the plug block 15, facilitate the disassembly of the sleeve 1, convenient operation, convenient maintenance and replacement of the sleeve 1.

[0024] Further, the moving block 34 is fixedly connected with the sliding block 38 on both sides, the installation slot 31 is symmetrically provided with the sliding groove 37 on both sides, and the sliding block 38 and the sliding groove 37 form a sliding connection structure, during use, the sliding block 38 slides along the sliding groove 37, so that the movement of the moving block 34 is more stable.

[0025] Further, the clamping column 35 and the outer end of the plug block 15 are both rounded, and the clamping column 35 is inserted into the clamping hole 16.

[0026] Further, one end of the connecting head 10 is fixedly connected with the sealing ring 11, and one end of the chromatographic column body 2 is provided with the annular sealing groove 12 matched with the sealing ring 11, during use, the sealing ring 11 is matched with the annular sealing groove 12, so as to improve the sealing performance of the connection between the sleeve 1 and the chromatographic column body 2.

[0027] Further, the outer wall of the main body 7 is sleeved with a heating pipe 8, the sleeve 1 is provided with a boss 5 away from the chromatographic column body 2, the main body 7 is provided with a connecting shaft 6 at the end extending to the outside through the boss 5, in use, the heating pipe 8 is arranged, the ink in the main body 7 is heated, and the ink is evaporated into the GC-MS system, the sample is heated and the complex compound is decomposed through the heating pipe 8, and subsequent analysis is facilitated.

[0028] The working principle of the utility model is: when installing, only need to insert the plug block 15 to the slot 17, in the process of gradually inserting, the reset spring 33 makes the action of compressing first and resetting, so that the clamping column 35 is clamped in the clamping hole 16, at this moment, the sealing ring 11 is inserted into the annular sealing groove 12, through the compression of the compression spring 14, the insertion of the sealing ring 11 and the annular sealing groove 12 is more compact, so that the sealing property of the connection between the chromatographic column body 2 and the main body 7 is improved, on the contrary, only need to pull the pull rod 32 outward, the pull rod 32 drives the moving block 34 to move outward along the installation slot 31, so that the clamping column 35 is driven to move outward and separate from the clamping hole 16, that is, the locking of the plug block 15 can be released, the sleeve 1 can be disassembled conveniently, the operation is convenient, and the maintenance and replacement of the sleeve 1 are facilitated.

[0029] The utility model is described exemplarily in combination with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, as long as the method concept and technical scheme of the utility model are adopted for this non-essential improvement or the concept and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A gas chromatograph interface device for printed ink detection comprising a sleeve (1) characterised in that: One end of the sleeve (1) is fixedly connected with a chromatographic column body (2), one end of the chromatographic column body (2) is fixedly sleeved with a mounting disc (4), one end of the sleeve (1) is provided with a cover plate (9), the inside of the sleeve (1) is provided with a main body part (7), one end of the main body part (7) extending to the outside through the cover plate (9) is fixedly connected with a connector (10), both sides of the end of the sleeve (1) close to the chromatographic column body (2) are symmetrically provided with a plug-in assembly (3), the end of the sleeve (1) close to the chromatographic column body (2) is symmetrically provided with a plug-in slot (17), one end of the chromatographic column body (2) is symmetrically fixedly connected with a sleeve column (13), the inside of the sleeve column (13) is fixedly installed with a compression spring (14), one end of the compression spring (14) is fixedly connected with a plug-in block (15), one side of the plug-in block (15) is provided with a clamping hole (16).

2. The GC interface device for printed ink detection according to claim 1, characterized in that: The plug-in assembly (3) comprises a mounting groove (31) provided on the outer wall of the sleeve (1), one end of the mounting groove (31) is fixedly connected with a baffle (36), one side of the baffle (36) is inserted with a pull rod (32), one end of the pull rod (32) located in the mounting groove (31) is fixedly connected with a moving block (34), one end of the pull rod (32) close to the moving block (34) is sleeved with a return spring (33), one side of the moving block (34) away from the pull rod (32) is fixedly connected with a clamping column (35) matched with the clamping hole (16).

3. The GC interface device for printed ink detection according to claim 2, characterized in that: Both sides of the moving block (34) are symmetrically fixedly connected with a sliding block (38), both sides of the mounting groove (31) are symmetrically provided with a sliding groove (37), and the sliding block (38) and the sliding groove (37) constitute a sliding connection structure.

4. The GC interface device for printed ink detection according to claim 2, wherein: The outer end of the clamping column (35) and the plug-in block (15) are both rounded, and the clamping column (35) is inserted into the clamping hole (16).

5. The GC interface device for printed ink detection according to claim 1, wherein: One end of the connector (10) is fixedly connected with a sealing ring (11), and one end of the chromatographic column body (2) is provided with an annular sealing groove (12) matched with the sealing ring (11).

6. The GC interface device for printed ink detection according to claim 1, wherein: The outer wall of the main body part (7) is sleeved with a heating pipe (8), one end of the sleeve (1) away from the chromatographic column body (2) is provided with a boss (5), and one end of the main body part (7) extending to the outside through the boss (5) is provided with a connecting shaft (6).

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