CN219369668U - Sample inlet sealing mechanism of gas chromatograph-mass spectrometer - Google Patents
Sample inlet sealing mechanism of gas chromatograph-mass spectrometer Download PDFInfo
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- CN219369668U CN219369668U CN202320653334.3U CN202320653334U CN219369668U CN 219369668 U CN219369668 U CN 219369668U CN 202320653334 U CN202320653334 U CN 202320653334U CN 219369668 U CN219369668 U CN 219369668U
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- groove
- sealing
- fixedly connected
- mass spectrometer
- air duct
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The utility model relates to the technical field related to a spectrum mass spectrometer and discloses a sample inlet sealing mechanism of a gas chromatograph-mass spectrometer, which comprises a mass spectrometer, wherein one side of the mass spectrometer is provided with a mounting groove, a first thread groove is fixedly connected to the mounting groove, a first thread mounting head is connected to the first thread groove in a threaded manner, an air duct is fixedly connected to the first thread mounting head, a sealing groove is fixedly connected to the air duct, two groups of sealing ports are arranged at two ends of the sealing groove, an air duct is arranged between the sealing ports, a fixing frame is fixedly connected to the inner wall of the air duct, which is close to one end of the mass spectrometer, a positioning rod is fixedly connected to the fixing frame, and a positioning cylinder is connected to the positioning rod in a sliding manner.
Description
Technical Field
The utility model relates to the technical field of spectrum and mass spectrometer, in particular to a sample inlet sealing mechanism of a gas chromatography and mass spectrometer.
Background
The gas chromatograph-mass spectrometer is widely applied to the fields of environmental protection industry, electronic industry, textile industry, petrochemical industry, essence and spice industry, medicine industry, agriculture, food safety and the like, and is used for analyzing pollution in air, water quality and soil, analyzing pesticide residues, animal residues and medicine residues, analyzing aroma components of the essence and spice and detecting harmful substances in the textile industry.
In the process of transporting samples, the gas chromatograph-mass spectrometer can not carry out sealed transport, so that the samples are easy to leak, and the inspection result of the samples can not meet the specified requirements.
Disclosure of Invention
The utility model aims to provide a sample inlet sealing mechanism of a gas chromatograph-mass spectrometer, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a sample inlet sealing mechanism of gas chromatograph mass spectrometer, includes the mass spectrometer, mass spectrometer one side is provided with the mounting groove, fixedly connected with first screw thread groove on the mounting groove, first screw thread inslot threaded connection has first screw thread installation head, first screw thread installation overhead fixedly connected with air duct, fixedly connected with seal groove in the air duct, the seal groove both ends are provided with two sets of sealing ports, are provided with the air duct between the sealing ports, fixedly connected with mount on the inner wall that the air duct is close to the one end of mass spectrometer, fixedly connected with locating lever on the mount, sliding connection has a positioning cylinder on the locating lever, is provided with first spring in the positioning cylinder, be provided with the connecting rod in the air duct, connecting rod both ends fixedly connected with two sets of sealing blocks, sealing block and two sets of sealing ports mutually support, a set of sealing block fixedly connected with is on the positioning cylinder, another set of fixedly connected with needle on the sealing block, the air duct other end internally connected with second screw thread groove, threaded connection has the second screw thread installation head in the second screw thread groove, fixedly connected with high-pressure gas cylinder on the second screw thread installation head still includes: and a valve assembly coupled within the second threaded mounting head.
As a further scheme of the utility model: the first thread groove and the second thread groove are internally provided with clamping grooves, sealing rings are installed in the clamping grooves, and the sealing rings are matched with the first thread installation head and the second thread installation head.
As a further scheme of the utility model: the air valve assembly comprises an exhaust groove arranged in the second threaded mounting head, a spring groove is formed in one side, close to the high-pressure air cylinder, of the exhaust groove, a second spring is arranged in the spring groove, one end, far away from the high-pressure air cylinder, of the second spring is connected with a stop block, one side of the stop block is fixedly connected with a sliding rod, and the sliding rod is in sliding connection with the second threaded mounting head.
As a further scheme of the utility model: and an air guide hole for communicating the high-pressure air bottle with the exhaust groove is arranged in the second threaded mounting head.
As still further aspects of the utility model: an exhaust port is arranged on one side of the exhaust groove, a sealing rod is connected in the exhaust port in a sliding mode, and one end of the sealing rod is fixedly connected to the stop block.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the air duct is subjected to double-layer sealing through the arrangement of the two groups of sealing ports and the sealing blocks, so that the sealing performance of the device is improved, the sealing effect is better, and meanwhile, the air tightness at the outlet of the device is improved and the practicability of the device is improved through the arrangement of the valve needle and the air valve assembly.
Drawings
Fig. 1 is a schematic structural diagram of a sample inlet sealing mechanism of a gas chromatograph-mass spectrometer in the present utility model.
Fig. 2 is a schematic diagram of the internal structure of the gas guide tube in the sealing mechanism of the sample inlet of the gas chromatograph-mass spectrometer.
Fig. 3 is a schematic diagram of the internal structure of a high-pressure gas cylinder in a sample inlet sealing mechanism of a gas chromatograph-mass spectrometer.
In the figure: 1-mass spectrometer, 2-mounting groove, 3-first screw groove, 4-clamping groove, 5-sealing ring, 6-first screw mounting head, 7-air duct, 8-sealing groove, 9-sealing port, 10-air duct, 11-fixing frame, 12-locating rod, 13-locating cylinder, 14-first spring, 15-sealing block, 16-connecting rod, 17-valve needle, 18-second screw groove, 19-high-pressure gas cylinder, 20-second screw mounting head, 21-air exhaust groove, 22-spring groove, 23-sliding rod, 24-stop, 25-second spring, 26-air duct, 27-air outlet and 28-sealing rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, in the embodiment of the utility model, a sample inlet sealing mechanism of a gas chromatograph-mass spectrometer comprises a mass spectrometer 1, one side of the mass spectrometer 1 is provided with a mounting groove 2, a first thread groove 3 is fixedly connected to the mounting groove 2, a first thread mounting head 6 is connected to the first thread groove 3 in an internal thread manner, an air duct 7 is fixedly connected to the first thread mounting head 6, a sealing groove 8 is fixedly connected to the air duct 7, two groups of sealing ports 9 are arranged at two ends of the sealing groove 8, an air duct 10 is arranged between the sealing ports 9, a fixing frame 11 is fixedly connected to the inner wall of the air duct 7 close to one end of the mass spectrometer 1, a positioning rod 12 is fixedly connected to the fixing frame 11, a positioning cylinder 13 is connected to the positioning rod 12 in a sliding manner, a first spring 14 is arranged in the positioning cylinder 13, a connecting rod 16 is arranged in the air duct 10, two groups of sealing blocks 15 are fixedly connected to two ends of the connecting rod 16, the sealing blocks 15 are mutually matched with the two groups of sealing ports 9, one group of sealing blocks 15 is fixedly connected to the positioning cylinder 13, the other group of sealing blocks 15 is fixedly connected to the air duct 17, a second thread groove 18 is connected to the second thread groove 20, and a second thread 20 is connected to the second thread groove 20, and the second thread groove 20 is fixedly connected to the second thread groove 20, and the sealing block is provided with the second thread groove 20, and the second thread groove is provided with the second thread groove, and the sealing groove is provided with the sealing groove is the sealing groove, and the sealing groove is the sealing groove and the sealing groove is the sealing groove. The air valve assembly is connected in the second threaded mounting head 20, the air duct 7 is firstly mounted and fixed on the mass spectrometer 1 through the threaded connection of the first threaded mounting head 6 and the first threaded groove 3, when the high-pressure air cylinder 19 is not mounted, the device elastically pushes the positioning cylinder 13 through the arrangement of the first spring 14, the positioning cylinder 13 drives the two groups of sealing blocks 15 through the connecting rod 16 to slide and push out so as to seal the two groups of sealing ports 9, then when the device body is required to be input, the device firstly seals and mounts the high-pressure air cylinder 19 on the air duct 7 through the threaded connection of the second threaded mounting head 20 and the second threaded groove 18, and in the mounting process, the air valve assembly is jacked up through the valve needle 17, so that the air valve assembly is opened, and in the screwing process of the high-pressure air cylinder 19, the air valve assembly pushes the valve needle 17, the two groups of sealing blocks 15 are pushed through the connecting rod 16, so that the two groups of sealing blocks 15 are separated from the two groups of sealing ports 9, and at the moment, air in the high-pressure air cylinder 19 flows into the mass spectrometer 1 along the air duct 10 in the air duct 7.
In one case of the present embodiment, referring to fig. 1 to 3, a clamping groove 4 is disposed in the first thread groove 3 and the second thread groove 18, a sealing ring 5 is installed in the clamping groove 4, and the sealing ring 5 is matched with the first thread installation head 6 and the second thread installation head 20, so that the sealing is performed between the thread groove and the thread installation head through the arrangement of the sealing ring 5.
In one case of this embodiment, referring to fig. 1 to 3, the air valve assembly includes an air vent 21 disposed in the second threaded mounting head 20, a spring groove 22 is disposed on one side of the air vent 21 close to the high pressure air bottle 19, a second spring 25 is disposed in the spring groove 22, one end of the second spring 25 far away from the high pressure air bottle 19 is connected with a stop 24, one side of the stop 24 is fixedly connected with a sliding rod 23, the sliding rod 23 is slidably connected with the second threaded mounting head 20, an air vent 26 communicating the high pressure air bottle 19 with the air vent 21 is disposed in the second threaded mounting head 20, an air vent 27 is disposed on one side of the air vent 21, a sealing rod 28 is slidably connected in the air vent 27, one end of the sealing rod 28 is fixedly connected to the stop 24, the stop 24 elastically pushes the sealing rod 28 through the second spring 25, so that the sealing rod 28 is slidably sealed in the air vent 27, and then when the high pressure air bottle 19 is mounted, the air valve assembly can push the sealing rod 28 to the air vent 21 to shrink, thereby open the air vent 27 along the air vent 27 and flow into the air vent 27 along the air vent 27.
The working principle of the utility model is as follows: according to the utility model, firstly, the air duct 7 is installed and fixed on the mass spectrometer 1 through the threaded connection of the first threaded installation head 6 and the first threaded groove 3, when the high-pressure air cylinder 19 is not installed, the device elastically pushes the positioning cylinder 13 through the arrangement of the first spring 14, the positioning cylinder 13 drives the two groups of sealing blocks 15 to slide and push out through the connecting rod 16, so that the two groups of sealing ports 9 are sealed, then when the device needs to input a device body, firstly, the device seals and installs the high-pressure air cylinder 19 on the air duct 7 through the threaded connection of the second threaded installation head 20 and the second threaded groove 18, and pushes the sealing rod 28 through the valve needle 17 in the installation process, the sealing rod 28 is contracted into the air exhaust groove 21, so that the air outlet 27 is opened, at the moment, the air in the high-pressure air cylinder 19 flows into the air exhaust groove 21 along the air guide hole 26 and flows into the air duct 7 along the air outlet 27, and simultaneously pushes the valve needle 17 through the connecting rod 16, so that the two groups of sealing blocks 15 are pushed through the connecting rod 16, so that the two groups of sealing blocks 15 are separated from the two groups of sealing ports 9, and the air in the high-pressure air cylinder 19 flows into the air duct 10 along the air duct 1.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (5)
1. The utility model provides a sample inlet sealing mechanism of gas chromatograph mass spectrometer, includes the mass spectrometer, and its characterized in that, mass spectrometer one side is provided with the mounting groove, fixedly connected with first screw thread groove on the mounting groove, first screw thread inslot threaded connection has first screw thread installation head, first screw thread installation overhead fixedly connected with air duct, fixedly connected with seal groove in the air duct, the seal groove both ends are provided with two sets of seal openings, are provided with the air duct between the seal openings, fixedly connected with mount on the inner wall that the air duct is close to the one end of mass spectrometer, fixedly connected with locating lever on the mount, sliding connection has a positioning cylinder on the locating lever, is provided with first spring in the positioning cylinder, be provided with the connecting rod in the air duct, connecting rod both ends fixedly connected with two sets of sealing blocks, sealing block and two sets of sealing openings mutually support, a set of sealing block fixedly connected with needle on the positioning cylinder, the other set of fixedly connected with needle in the air duct other end, second screw thread groove internal thread connection has second screw thread installation head, fixedly connected with high-pressure gas cylinder on the second screw thread installation head, still includes: and a valve assembly coupled within the second threaded mounting head.
2. The sample inlet sealing mechanism of the gas chromatography-mass spectrometer of claim 1, wherein clamping grooves are formed in the first thread groove and the second thread groove, a sealing ring is installed in the clamping grooves, and the sealing ring is matched with the first thread installation head and the second thread installation head.
3. The sample inlet sealing mechanism of the gas chromatography-mass spectrometer of claim 1, wherein the air valve assembly comprises an air exhaust groove arranged in the second threaded mounting head, a spring groove is arranged on one side, close to the high-pressure gas cylinder, of the air exhaust groove, a second spring is arranged in the spring groove, one end, far away from the high-pressure gas cylinder, of the second spring is connected with a stop block, one side of the stop block is fixedly connected with a sliding rod, and the sliding rod is in sliding connection with the second threaded mounting head.
4. The sample inlet sealing mechanism of the gas chromatography-mass spectrometer of claim 3, wherein the second threaded mounting head is internally provided with a gas guide hole for communicating the high-pressure gas cylinder with the gas discharge groove.
5. The sample inlet sealing mechanism of the gas chromatograph-mass spectrometer of claim 4, wherein an exhaust port is arranged on one side of the exhaust groove, a sealing rod is connected in the exhaust port in a sliding manner, one end of the sealing rod is fixedly connected to the stop block, and the sealing rod is matched with the valve needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320653334.3U CN219369668U (en) | 2023-03-29 | 2023-03-29 | Sample inlet sealing mechanism of gas chromatograph-mass spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320653334.3U CN219369668U (en) | 2023-03-29 | 2023-03-29 | Sample inlet sealing mechanism of gas chromatograph-mass spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219369668U true CN219369668U (en) | 2023-07-18 |
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ID=87140594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320653334.3U Active CN219369668U (en) | 2023-03-29 | 2023-03-29 | Sample inlet sealing mechanism of gas chromatograph-mass spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219369668U (en) |
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2023
- 2023-03-29 CN CN202320653334.3U patent/CN219369668U/en active Active
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