CN216309891U - Gas chromatography-mass spectrometer sample inlet sealing device - Google Patents
Gas chromatography-mass spectrometer sample inlet sealing device Download PDFInfo
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- CN216309891U CN216309891U CN202121619559.4U CN202121619559U CN216309891U CN 216309891 U CN216309891 U CN 216309891U CN 202121619559 U CN202121619559 U CN 202121619559U CN 216309891 U CN216309891 U CN 216309891U
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- sample inlet
- instrument body
- fixedly connected
- stepping motor
- gas chromatography
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- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 239000011521 glass Substances 0.000 claims description 5
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 19
- 239000007789 gas Substances 0.000 description 14
- 230000006872 improvement Effects 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000574 gas--solid chromatography Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a gas chromatography-mass spectrometer sample inlet sealing device which comprises an instrument body, wherein a sample inlet is formed in the middle end of the right side of the instrument body, an operation box is fixedly connected to the upper end of the right side of the instrument body, a first stepping motor is fixedly installed at the top of the inner cavity of the operation box, and a first threaded rod is fixedly installed at the output end of the first stepping motor. The double-sealing device realizes the purpose of double sealing of the sample inlet on the instrument body under the mutual matching action of the operation box, the first stepping motor, the first threaded rod, the threaded block, the fixed rod, the fixed support, the second stepping motor, the rotating sleeve, the second threaded rod, the sealing plate, the instrument body and the sample inlet, greatly improves the sealing effect of the sample inlet, effectively avoids gas leakage, is convenient and quick to integrally operate, and brings great convenience to people.
Description
Technical Field
The utility model relates to the technical field of gas chromatography-mass spectrometry, in particular to a gas chromatography-mass spectrometry sample inlet sealing device.
Background
A gas chromatography-mass spectrometer is a mass spectrometer and is applied to medicine and physics, wherein a mobile phase of gas chromatography is inert gas, an adsorbent with large surface area and certain activity is used as a stationary phase in gas-solid chromatography, when a multi-component mixed sample enters a chromatographic column, because the adsorption force of the adsorbent to each component is different, after a certain time, the running speed of each component in the chromatographic column is different, the component with weak adsorption force is easy to desorb, firstly leaves the chromatographic column to enter a detector, and the component with strongest adsorption force is not easy to desorb, and finally leaves the chromatographic column, so that the components can be separated from each other in the chromatographic column, and sequentially enter the detector to be detected and recorded.
However, the existing gas chromatography-mass spectrometer has poor sealing effect of the sample inlet, gas leakage is easy to occur in the using process, manual completion is manually performed in the sealing operation, the operation is complex, and great inconvenience is brought to the work of people.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a gas chromatography-mass spectrometer sample inlet sealing device which has the advantages of good sealing effect and convenience in operation, and solves the problems that the existing gas chromatography-mass spectrometer sample inlet is poor in sealing effect, gas leakage is easy to occur in the using process, meanwhile, the sealing operation is manually completed manually, and the operation is complicated.
In order to achieve the purpose, the utility model provides the following technical scheme: a sample inlet sealing device of a gas chromatography-mass spectrometer comprises an instrument body, wherein a sample inlet is formed in the middle end of the right side of the instrument body, an operation box is fixedly connected to the upper end of the right side of the instrument body, a first stepping motor is fixedly mounted at the top of an inner cavity of the operation box, a first threaded rod is fixedly mounted at the output end of the first stepping motor, the bottom of the first threaded rod is movably connected to the middle end of the bottom of the inner cavity of the operation box through a bearing, a threaded block is connected to the upper end of the first threaded rod in a threaded manner, fixing rods are fixedly connected to the two sides of the threaded block respectively, fixed supports are fixedly connected to the bottoms of the fixing rods, a second stepping motor is fixedly mounted at the lower ends of the two fixing supports, which are far away from one side each other, a rotating sleeve is fixedly mounted at the output end of the second stepping motor, and the outer surface of the rotating sleeve is movably connected to the lower ends of the fixing supports through bearings, the inner surface of the rotating sleeve is in threaded connection with a second threaded rod, and a sealing plate is fixedly connected to one side, close to each other, of the second threaded rods.
Preferably, a rubber sealing gasket is fixedly mounted on one side, close to each other, of each of the two sealing plates, and the thickness of each rubber sealing gasket is five millimeters.
Preferably, the lower end of the fixed support is movably connected with a limiting slide rod above the rotating sleeve, and the surface of the limiting slide rod is fixedly connected to the upper end of the sealing plate.
Preferably, both ends of the bottom of the operation box are fixedly connected with limiting sleeves, and the inner surfaces of the limiting sleeves are movably connected to the surfaces of the fixed supports.
Preferably, the limiting grooves are formed in two sides of the inner cavity of the operating box, and one end, far away from the thread block, of the surface of the fixing rod is movably connected to the surface of each limiting groove.
Preferably, the periphery of the bottom of the outer surface of the instrument body is fixedly connected with supporting blocks, the upper end of the front surface of the instrument body is provided with an observation port, the surface of the observation port is fixedly connected with a transparent glass plate, and the lower end of the front surface of the instrument body is fixedly provided with a control panel.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model can drive the first threaded rod to rotate by starting the first stepping motor in the operation box, so that the threaded block can move downwards along the surface of the first threaded rod, the threaded block can drive the fixed rod and the fixed support to move downwards, the fixed support can drive the second stepping motor, the rotating sleeve, the second threaded rod and the sealing plate to move downwards while moving, after two sealing plates are respectively positioned at two sides of the sample inlet on the instrument body, the rotating sleeve can be driven to rotate by starting the second stepping motor to work, so that the second threaded rod approaches to one side of the sample inlet along the inner surface of the rotating sleeve, the sealing plate is driven to move while moving, until the sealing plates at two sides are respectively clung to the surfaces of the instrument body at the periphery of the sample inlet, thereby achieving the effect of quickly and doubly sealing the sample inlet, convenient operation is swift, very big improvement the sealed effect to the introduction port, under whole complex effect, realized carrying out the purpose of dual seal to the introduction port on the instrument body, very big improvement the sealed effect to the introduction port, effectually avoided the gas emergence to reveal, and whole convenient operation is swift, the use of giving people brings very big facility, it is relatively poor to have solved the sealed effect of current gas chromatography mass spectrometer introduction port, the gas is revealed easily to take place in the use, the manual completion of manual work is carried out in the sealed operation adoption simultaneously, complex operation's problem.
2. According to the utility model, the sealing performance between the sealing plate and the sample inlet on the instrument body is improved through the arrangement of the rubber sealing gasket, the purpose of limiting the sealing plate is achieved through the arrangement of the limiting slide rod, the purpose of limiting the fixing support is achieved through the arrangement of the limiting sleeve, the purpose of limiting the fixing rod is achieved through the arrangement of the limiting groove, the purpose of supporting the whole body is achieved through the arrangement of the supporting block, and the observation of the state inside the instrument body is facilitated for a user through the arrangement of the observation port and the transparent glass plate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of the operation box of the present invention;
fig. 3 is a partial structural schematic view of the fixing bracket of the utility model.
In the figure: 1. an instrument body; 2. a support block; 3. a viewing port; 4. an operation box; 5. a first stepper motor; 6. a thread block; 7. a first threaded rod; 8. a limiting sleeve; 9. fixing the rod; 10. a limiting groove; 11. fixing a bracket; 12. a limiting slide bar; 13. a second stepping motor; 14. a sealing plate; 15. a sample inlet; 16. a second threaded rod; 17. a rubber gasket; 18. rotating the sleeve; 19. a control panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1-3, a sample inlet sealing device for a gas chromatography-mass spectrometer comprises an instrument body 1, wherein supporting blocks 2 are fixedly connected to the periphery of the bottom of the outer surface of the instrument body 1, the purpose of supporting the whole body is achieved by the arrangement of the supporting blocks 2, an observation port 3 is formed in the upper end of the front surface of the instrument body 1, a transparent glass plate is fixedly connected to the surface of the observation port 3, a user can observe the state inside the instrument body 1 conveniently by arranging the observation port 3 and the transparent glass plate, a control panel 19 is fixedly installed at the lower end of the front surface of the instrument body 1, a sample inlet 15 is formed in the middle end of the right side of the instrument body 1, an operation box 4 is fixedly connected to the upper end of the right side of the instrument body 1, a first stepping motor 5 is fixedly installed at the top of the inner cavity of the operation box 4, and a first threaded rod 7 is fixedly installed at the output end of the first stepping motor 5, the bottom of the first threaded rod 7 is movably connected to the middle end of the bottom of the inner cavity of the operation box 4 through a bearing, the upper end of the first threaded rod 7 is in threaded connection with a threaded block 6, both sides of the threaded block 6 are fixedly connected with fixed rods 9, both sides of the inner cavity of the operation box 4 are respectively provided with a limit groove 10, the surface of each fixed rod 9 and one end far away from the threaded block 6 are movably connected to the surface of the corresponding limit groove 10, the purpose of limiting the fixed rods 9 is achieved through the arrangement of the limit grooves 10, the bottom of each fixed rod 9 is fixedly connected with a fixed support 11, both ends of the bottom of the operation box 4 are respectively and fixedly connected with a limit sleeve 8, the inner surface of each limit sleeve 8 is movably connected to the surface of the fixed support 11, the purpose of limiting the fixed support 11 is achieved through the arrangement of the limit sleeves 8, the lower end far away from one side of the two fixed supports 11 is fixedly provided with a second stepping motor 13, the output end of the second stepping motor 13 is fixedly provided with a rotating sleeve 18, the outer surface of the rotating sleeve 18 is movably connected to the lower end of the fixed support 11 through a bearing, the inner surface of the rotating sleeve 18 is in threaded connection with a second threaded rod 16, one side, close to each other, of the two second threaded rods 16 is fixedly connected with a sealing plate 14, one side, close to each other, of the two sealing plates 14 is fixedly provided with a rubber sealing gasket 17, the thickness of the rubber sealing gasket 17 is five millimeters, the sealing performance between the sealing plate 14 and the sample inlet 15 in the instrument body 1 is improved through the arrangement of the rubber sealing gasket 17, the lower end of the fixed support 11 is movably connected with a limiting slide rod 12 above the rotating sleeve 18, the surface of the limiting slide rod 12 is fixedly connected to the upper end of the sealing plate 14, the purpose of limiting the sealing plate 14 is achieved through the arrangement of the limiting slide rod 12, the first stepping motor 5 in the operation box 4 can drive the first threaded rod 7 to rotate through starting operation, the thread block 6 can move downwards along the surface of the first threaded rod 7, the thread block 6 can move to drive the fixing rod 9 and the fixing support 11 to move downwards, the fixing support 11 can drive the second stepping motor 13, the rotating sleeve 18, the second threaded rod 16 and the sealing plates 14 to move downwards while moving, until the two sealing plates 14 are respectively positioned at two sides of the sample inlet 15 on the instrument body 1, the second stepping motor 13 is started to work to drive the rotating sleeve 18 to rotate, so that the second threaded rod 16 approaches to one side of the sample inlet 15 along the inner surface of the rotating sleeve 18, the second threaded rod 16 drives the sealing plates 14 to move while moving, until the sealing plates 14 at two sides are respectively attached to the surfaces of the instrument body 1 around the sample inlet 15, and further the effect of performing quick double sealing on the sample inlet 15 is achieved, and the operation is convenient and rapid, very big improvement to the sealed effect of introduction port 15, under whole complex effect, realized carrying out the purpose of dual seal to introduction port 15 on the instrument body 1, very big improvement to the sealed effect of introduction port 15, effectually avoided the gas emergence to reveal, and whole convenient operation is swift, the use of giving people brings very big facility, it is relatively poor to have solved the sealed effect of current gas chromatography mass spectrometer introduction port, the gas is revealed easily to take place in the use, sealed operation adopts the manual work to carry out manual completion simultaneously, complex operation's problem.
All the components in the utility model are universal standard components or components known by those skilled in the art, the structure and principle of the components can be known by technical manuals or conventional experimental methods, meanwhile, the standard components used in the application document can be purchased from the market, the components in the application document can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each component adopts the conventional means of mature bolts, rivets, welding and the like in the prior art, the machinery, the components and equipment adopt the conventional models in the prior art, the control mode is automatically controlled through a controller, the control circuit of the controller can be realized through simple programming of those skilled in the art, the components belong to the common knowledge in the art, and the application document is mainly used for protecting mechanical devices, so the detailed explanation of the control mode and circuit connection is omitted, no specific description will be made herein.
When the instrument is used, the first threaded rod 7 can be driven to rotate by starting the first stepping motor 5 in the operation box 4, so that the threaded block 6 can move downwards along the surface of the first threaded rod 7, the threaded block 6 can drive the fixed rod 9 and the fixed support 11 to move downwards by starting, the fixed support 11 can drive the second stepping motor 13, the rotating sleeve 18, the second threaded rod 16 and the sealing plates 14 to move downwards while moving, until the two sealing plates 14 are respectively positioned at two sides of the sample inlet 15 on the instrument body 1, the rotating sleeve 18 can be driven to rotate by starting the second stepping motor 13 to make the second threaded rod 16 approach to one side of the sample inlet 15 along the inner surface of the rotating sleeve 18, the sealing plates 14 are driven to move while moving by starting the second threaded rod 16 until the sealing plates 14 at two sides are respectively attached to the surfaces of the instrument body 1 around the sample inlet 15, and then reached and carried out quick double sealing's effect to going into appearance mouth 15, convenient operation is swift, very big improvement to the sealed effect of going into appearance mouth 15, under whole complex effect, realized carrying out the purpose of double sealing to going into appearance mouth 15 on the instrument body 1, very big improvement to the sealed effect of going into appearance mouth 15, effectually avoided the gas emergence to reveal, and whole convenient operation is swift, the use of giving people brings very big facility.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a gas chromatography-mass spectrometry appearance introduction port sealing device, includes instrument body (1), its characterized in that: the instrument comprises an instrument body (1), a sample inlet (15) is formed in the middle end of the right side of the instrument body (1), an operation box (4) is fixedly connected to the upper end of the right side of the instrument body (1), a first stepping motor (5) is fixedly mounted at the top of an inner cavity of the operation box (4), a first threaded rod (7) is fixedly mounted at the output end of the first stepping motor (5), the bottom of the first threaded rod (7) is movably connected to the middle end of the bottom of the inner cavity of the operation box (4) through a bearing, a threaded block (6) is connected to the upper end of the first threaded rod (7) in a threaded manner, fixing rods (9) are fixedly connected to both sides of the threaded block (6), fixing supports (11) are fixedly connected to the bottom of the fixing rods (9), a second stepping motor (13) is fixedly mounted at the lower ends, far away from one side of the two fixing supports (11), and a rotating sleeve (18) is fixedly mounted at the output end of the second stepping motor (13), the outer surface of the rotating sleeve (18) is movably connected to the lower end of the fixed support (11) through a bearing, the inner surface of the rotating sleeve (18) is in threaded connection with second threaded rods (16), and a sealing plate (14) is fixedly connected to one side, close to each other, of each of the second threaded rods (16).
2. The gas chromatography-mass spectrometer sample inlet sealing device according to claim 1, characterized in that: two one side fixed mounting that sealing plate (14) are close to each other has rubber packing (17), rubber packing (17)'s thickness is five millimeters.
3. The gas chromatography-mass spectrometer sample inlet sealing device according to claim 1, characterized in that: the lower end of the fixed support (11) is movably connected with a limiting sliding rod (12) above the rotating sleeve (18), and the surface of the limiting sliding rod (12) is fixedly connected to the upper end of the sealing plate (14).
4. The gas chromatography-mass spectrometer sample inlet sealing device according to claim 1, characterized in that: both ends of operation box (4) bottom are equal fixedly connected with stop collar (8), the internal surface swing joint of stop collar (8) is in the surface of fixed bolster (11).
5. The gas chromatography-mass spectrometer sample inlet sealing device according to claim 1, characterized in that: limiting grooves (10) are formed in two sides of an inner cavity of the operating box (4), and one end, far away from the thread block (6), of the surface of the fixing rod (9) is movably connected to the surface of each limiting groove (10).
6. The gas chromatography-mass spectrometer sample inlet sealing device according to claim 1, characterized in that: the instrument is characterized in that supporting blocks (2) are fixedly connected to the periphery of the bottom of the outer surface of the instrument body (1), an observation port (3) is formed in the upper end of the front surface of the instrument body (1), a transparent glass plate is fixedly connected to the surface of the observation port (3), and a control panel (19) is fixedly mounted at the lower end of the front surface of the instrument body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121619559.4U CN216309891U (en) | 2021-07-16 | 2021-07-16 | Gas chromatography-mass spectrometer sample inlet sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121619559.4U CN216309891U (en) | 2021-07-16 | 2021-07-16 | Gas chromatography-mass spectrometer sample inlet sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216309891U true CN216309891U (en) | 2022-04-15 |
Family
ID=81085583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121619559.4U Expired - Fee Related CN216309891U (en) | 2021-07-16 | 2021-07-16 | Gas chromatography-mass spectrometer sample inlet sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216309891U (en) |
-
2021
- 2021-07-16 CN CN202121619559.4U patent/CN216309891U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220415 |
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| CF01 | Termination of patent right due to non-payment of annual fee |