CN114577963B - Anti-blocking microinjector sucking device for gas chromatograph test - Google Patents
Anti-blocking microinjector sucking device for gas chromatograph test Download PDFInfo
- Publication number
- CN114577963B CN114577963B CN202210261579.1A CN202210261579A CN114577963B CN 114577963 B CN114577963 B CN 114577963B CN 202210261579 A CN202210261579 A CN 202210261579A CN 114577963 B CN114577963 B CN 114577963B
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- unit valve
- gas chromatograph
- microinjector
- pipe
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- 238000002474 experimental method Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 56
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/18—Injection using a septum or microsyringe
-
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
Landscapes
- 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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses anti-blocking microinjector suction equipment for gas chromatograph experiments, which belongs to the field of chromatograph experiment microinjectors and comprises a shell structure, wherein the shell structure comprises a cylindrical barrel, two round holes are formed in the lower end of the cylindrical barrel, a filtering bin is fixedly connected to the edge of the round hole on the right side of the cylindrical barrel, twelve filtering grooves are formed in the edge of the filtering bin at equal intervals, a fixing frame is fixedly connected to the middle part of the cylindrical barrel, a linkage structure is slidingly connected to the middle part of the fixing frame, the linkage structure comprises a push rod, the lower end of the push rod is fixedly connected with a rubber plug, a placing groove is formed in the middle part of the rubber plug, liquid can enter the filtering bin from a second unit valve for filtering, then flows out from the second unit valve, and a cleaning device cleans the filtering bin, so that blockage is not easy to occur when the suction equipment is re-injected, and the success rate of the gas chromatograph is improved.
Description
Technical Field
The invention relates to the field of chromatograph experiment microsyringes, in particular to anti-blocking microsyringes sucking equipment for gas chromatograph experiments.
Background
Gas chromatograph refers to a chromatographic instrument using gas as mobile phase. The principle is mainly to realize the separation of the mixture by utilizing the differences of the boiling point, the polarity and the adsorption property of the substances.
The gas chromatograph experiment sends liquid into the chromatograph through the sample injection system, and the chromatograph analysis is carried out to the sample injection liquid, and this needs the passageway to advance sample suction equipment.
The traditional sampling suction device sucks liquid from a sample through a micro-injector and sends the liquid into a chromatograph sample inlet, and as the liquid sample to be analyzed is mostly solid-liquid mixture, the solid components in the liquid agglomerate in the micro-injector to block the needle head of the aspirator after the aspirator sucks the liquid, so that a sampling system is damaged, and the gas chromatograph test fails.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the anti-blocking microinjector suction device for the gas chromatograph test, which can realize that liquid enters a filter bin from a second unit valve to be filtered, then flows out through a first unit valve, and a cleaning device cleans the filter bin, so that the suction device is not easy to be blocked when the suction device is re-injected, and the success rate of the gas chromatograph is improved.
In order to solve the problems, the invention adopts the following technical scheme.
The utility model provides an anti-blocking microinjector suction equipment for gas chromatograph is experimental, includes the cylinder section of thick bamboo, two round holes have been seted up to cylinder section of thick bamboo lower extreme, be located cylinder section of thick bamboo one side's round hole edge fixedly connected with filtration storehouse, twelve filter tanks have been seted up to filtration storehouse edge equidistance, cylinder section of thick bamboo middle part fixedly connected with mount, mount middle part sliding connection has the linkage structure, mount middle part sliding connection has the push rod, push rod lower extreme fixedly connected with rubber stopper, the standing groove has been seted up at the rubber stopper middle part, standing groove middle part fixedly connected with cleaning device, cleaning device includes the body, the disk hose is installed to the body outer end, body lower extreme fixedly connected with storage box, storage box outer end is connected with twelve rectangular pipes, the delivery port has been seted up to the storage box upper end, the delivery port upper end is articulated through spacing hinge and is connected with the mount, disk hose upper end and body sliding connection, cylinder section of thick bamboo lower extreme fixedly connected with the connecting block, two fixed orifices have been seted up at the middle part, two fixed orifices are fixedly connected with the rubber stopper, two fixed orifices have the second valve unit and the upper end and second valve unit, the second valve unit and the second valve unit are connected with the second valve unit, the second valve unit is connected with the end of the second valve unit.
Further, the first unit valve controls the liquid to flow out of the device only, the second unit valve controls the liquid to flow into the device only from the outside, and the first unit valve and the second unit valve limit the stop block at the water passing hole through the compression spring, so that the second unit valve controls the liquid to be sucked from the suction device, and the first unit valve controls the liquid to be discharged from the suction device.
Furthermore, the area of the water outlet is larger than the cross section of the rectangular pipe, and particles in the filter tank flow into the storage box through the rectangular pipe, so that the water pressure generated at the water outlet position is larger than the water pressure generated at the rectangular pipe, and the water pressure generated at the water outlet covers the water outlet through the cover plate in the stretching process of the disc-shaped hose.
Furthermore, the rotation angle of the limiting hinge is 0-30 degrees, and the cover plate is matched with the water outlet, so that the limiting hinge can rotate to a proper angle, and the cover plate can cover the water outlet.
Further, the cleaning device is located in the middle of the filter bin, and the rectangular pipes correspond to the filter tanks respectively, so that the rectangular pipes can absorb impurities in the filter tanks.
Further, the pipe body is communicated with the dish-shaped hose, and the inside material of the dish-shaped hose is elastic plastic, so that the dish-shaped hose can generate negative pressure in the storage box through the pipe body, and the dish-shaped hose can reset through elastic deformation.
Further, the sliding groove is formed in the edge of the shell, and the sliding groove is matched with the cross rod, so that the stop block is not easy to deviate in the moving process.
Further, the stop block of the second unit valve is jacked up from the middle of the water passing hole under the action of negative pressure, and the compression spring resets the stop block after the negative pressure disappears, so that the stop block can control whether the water passing hole passes through water flow or not.
Further, the push rod is a quadrangular, and the length of the push rod is ten centimeters, so that the push rod is not easy to rotate in the up-and-down motion process, and the rubber plug is prevented from being damaged due to rotation.
Further, U-shaped pipe outer end fixedly connected with sheath, and draw the needle and run through the sheath and be linked together with the U-shaped pipe for the difficult emergence of U-shaped pipe is damaged under the effect of sheath.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) According to the scheme, liquid enters the filter bin through the second unit valve to be filtered, and flows out through the first unit valve, and the filter bin is cleaned by the cleaning device, so that blockage is not easy to occur when the suction device is subjected to reinjection, and the success rate of the gas chromatograph is improved.
(2) The first unit valve controls liquid to flow out of the device only, the second unit valve controls liquid to flow into the device only from the outside, and the first unit valve and the second unit valve limit the stop block at the water passing hole through the compression spring, so that the second unit valve controls liquid to be sucked from the suction device, and the first unit valve controls liquid to be discharged from the suction device.
(3) The area of the water outlet is larger than the cross section of the rectangular pipe, and particles in the filter tank flow into the storage box through the rectangular pipe, so that the water pressure generated at the water outlet position is larger than the water pressure generated at the rectangular pipe, and the water pressure generated at the water outlet covers the water outlet through the cover plate in the stretching process of the disc-shaped hose.
(4) The rotation angle of the limiting hinge is 0-30 degrees, and the cover plate is matched with the water outlet, so that the limiting hinge can rotate to a proper angle, and the cover plate can cover the water outlet.
(5) The cleaning device is located at the middle of the filter bin, and the rectangular pipes correspond to the filter tanks respectively, so that the rectangular pipes can absorb impurities in the filter tanks.
(6) The body is linked together with the dish hose, and the inside material of dish hose is elastic plastic for the dish hose can produce the negative pressure in with the storage box through the body, and the dish hose can reset through elastic deformation.
(7) The sliding groove is formed in the edge of the shell, and the sliding groove is matched with the cross rod, so that the stop block is not easy to deviate in the movement process.
(8) The dog of second unit valve is by the jack-up from the water hole middle part under the negative pressure effect, and compression spring resets the dog after the negative pressure disappears for the dog can control whether the water hole passes through rivers.
(9) The push rod is the quadrangular, and the length of push rod is ten centimetres for the push rod is difficult for taking place to rotate in the up-and-down motion in-process, avoids the rubber buffer to take place to damage because of rotating.
(10) The sheath is fixedly connected with to the outer end of the U-shaped pipe, and the sucking needle penetrates through the sheath and is communicated with the U-shaped pipe, so that the U-shaped pipe is not easy to damage under the action of the sheath.
Drawings
FIG. 1 is an overall perspective view of the present invention;
FIG. 2 is an overall exploded view of the present invention;
FIG. 3 is an interior view of a cylindrical drum of the present invention;
FIG. 4 is an interior view of the push rod and rubber stopper of the present invention;
FIG. 5 is a semi-sectional view of a first unit valve and a second unit valve of the present invention;
FIG. 6 is a flow chart of the suction and filtration of a liquid to be tested according to the invention;
FIG. 7 is a flow chart of the liquid discharge apparatus to be tested according to the present invention;
FIG. 8 is a semi-sectional view of the cleaning device and filter cartridge of the present invention;
FIG. 9 is an extended state front sectional view of the cleaning device of the present invention;
fig. 10 is a front sectional view showing a contracted state of the cleaning device of the present invention.
The reference numerals in the figures illustrate:
1. A cylinder barrel; 2. a round hole; 3. a filtering bin; 4. a filter tank; 5. a fixing frame; 6. a push rod; 7. a rubber stopper; 8. a placement groove; 9. a cleaning device; 901. a tube body; 902. a dish-shaped hose; 903. a storage box; 904. a rectangular tube; 905. a water outlet; 906. a limit hinge; 907. a cover plate; 10. a connecting block; 11. a fixing hole; 1201. a housing; 1202. a water passing hole; 1203. a compression spring; 1204. a stop block; 1205. a cross bar; 13. a U-shaped tube; 14. a sheath; 15. and sucking needle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of the element of the adapting model. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples
Referring to fig. 1-4, an anti-blocking microinjector suction device for gas chromatograph test comprises a cylindrical barrel 1, two round holes 2 are formed at the lower end of the cylindrical barrel 1, a filter bin 3 is fixedly connected with the edge of the round hole 2 positioned at one side of the cylindrical barrel 1, twelve filter grooves 4 are equidistantly formed at the edge of the filter bin 3, a fixing frame 5 is fixedly connected with the middle part of the cylindrical barrel 1, a linkage structure is slidingly connected with the middle part of the fixing frame 5, a push rod 6 is slidingly connected with the lower end of the push rod 6, a rubber plug 7 is fixedly connected with the lower end of the push rod 6, a placing groove 8 is formed in the middle part of the rubber plug 7, a cleaning device 9 is fixedly connected with the middle part of the placing groove 8, the cleaning device 9 comprises a pipe body 901, a dish-shaped hose 902 is arranged at the outer end of the pipe body 901, a storage box 903 is fixedly connected with the lower end of the pipe body 901, twelve rectangular pipes 904 are connected with the outer end of the storage box 903 at equal angles, a water outlet 905 is formed at the upper end of the storage box 903, the upper end of the water outlet 905 is hinged with a cover plate 907 through a limit hinge 906, the upper end of the dished flexible pipe 902 is in sliding connection with the pipe body 901, the lower end of the cylindrical barrel 1 is fixedly connected with a connecting block 10, two fixing holes 11 are formed in the middle of the connecting block 10, a first unit valve and a second unit valve are respectively and fixedly connected in the middle of the two fixing holes 11, each of the first unit valve and the second unit valve comprises a shell 1201, water passing holes 1202 are formed in the upper end and the lower end of the shell 1201, a compression spring 1203 of the second unit valve is fixedly connected in the upper end of the middle of the shell 1201 of the second unit valve, a compression spring 1203 of the first unit valve is fixedly connected in the lower end of the middle of the shell 1201 of the first unit valve, a stop 1204 is fixedly connected in the middle of the shell 1201, a cross rod 1205 is fixedly connected in the same angle as the outer end of the stop 1204, a U-shaped pipe 13 is fixedly connected in the lower end of the connecting block 10, the lower end of the U-shaped pipe 13 is connected with a sucking needle 15.
Referring to fig. 5-9, the first unit valve controls the liquid to flow out of the device only, and the second unit valve controls the liquid to flow in the device only from the outside, and the first unit valve and the second unit valve limit the stopper 1204 at the water passing hole 1202 through the compression spring 1203, so that the second unit valve controls the liquid to be sucked from the suction device, and the first unit valve controls the liquid to be discharged from the suction device. The area of the water outlet 905 is larger than the cross section of the rectangular pipe 904, and the particles in the filter tank 4 flow into the storage box 903 through the rectangular pipe 904, so that the water pressure generated at the water outlet 905 is larger than the water pressure generated at the rectangular pipe 904, and the water pressure generated at the water outlet 905 covers the water outlet 905 by the cover plate 907 in the stretching process of the dish-shaped hose 902.
Referring to fig. 4-7, the rotation angle of the limit hinge 906 is 0 ° -30 °, and the cover plate 907 is matched with the water outlet 905, so that the limit hinge 906 can rotate to a proper angle, and the cover plate 907 can cover the water outlet 905. The cleaning device 9 is located at the middle part of the filter bin 3, and the rectangular pipes 904 respectively correspond to the filter tanks 4, so that the rectangular pipes 904 can absorb impurities in the filter tanks 4.
Referring to fig. 2-8, the tube 901 is in communication with the disc-shaped flexible tube 902, and the inner material of the disc-shaped flexible tube 902 is elastic plastic, so that the disc-shaped flexible tube 902 can generate negative pressure in the storage box 903 through the tube 901, and the disc-shaped flexible tube 902 can be reset through elastic deformation. The edge of the shell 1201 is provided with a sliding groove, and the sliding groove is matched with the cross rod 1205, so that the stopper 1204 is not easy to deviate in the movement process.
Referring to fig. 7-10, the second unit valve stopper 1204 is pushed away from the middle of the water hole 1202 under the negative pressure, and the compression spring 1203 resets the stopper 1204 after the negative pressure is lost, so that the stopper 1204 can control whether the water hole 1202 passes through the water flow. The push rod 6 is a quadrangular prism, and the length of the push rod 6 is ten centimeters, so that the push rod 6 is not easy to rotate in the up-and-down motion process, and the rubber plug 7 is prevented from being damaged due to rotation. The sheath 14 is fixedly connected to the outer end of the U-shaped tube 13, and the sucking needle 15 penetrates through the sheath 14 and is communicated with the U-shaped tube 13, so that the U-shaped tube 13 is not easy to damage under the action of the sheath 14.
Referring to fig. 1-10, in use, a user holds the outer wall of the cylinder 1, lifts the push rod 6 upwards, under the action of pressure, liquid flows into the U-shaped pipe 13 through the suction needle 15, due to the negative pressure, the stopper 1204 in the second unit valve is pushed upwards by water pressure, the liquid flows into the second unit valve from the water hole 1202, the liquid flows into the filter house 3 through the water hole 1202 again through the second unit valve, under the filtering effect of the filter house 3 and the filter tank 4, larger solid particles in the liquid are filtered, meanwhile, the rubber plug 7 drives the cleaning device 9 to move upwards, the dish-shaped hose 902 is extruded and contracted by the filter house 3 in the rising process of the cleaning device 9, the liquid or gas therein is discharged through the water outlet 905, the suction needle 15 is aligned with the chromatograph inlet after the suction is finished, the push rod 6 is pressed down, the liquid is blocked by the second unit valve, simultaneously, the first unit valve is opened to enable liquid to flow into the sucking needle 15 from the first unit valve, the rubber plug 7 drives the cleaning device 9 to move downwards when the push rod 6 is pressed down, the disc-shaped hose 902 starts to stretch under the action of elastic deformation, the middle part of the disc-shaped hose 902 is in a vacuum state, the liquid flows back into the disc-shaped hose 902, when the liquid enters the storage box 903 from the water outlet 905, the water pressure pushes the cover plate 907 to rotate along the limiting hinge 906 due to the fact that the water pressure is generated by the flowing of the liquid, the cover plate 907 enables the water outlet 905 to be blocked, the liquid can only flow into the disc-shaped hose 902 of the storage box 903 through the rectangular pipe 904, the solid impurities clamped in the middle part of the filter tank 4 are sucked into the storage box 903 due to the suction force generated by the pipe orifice of the rectangular pipe 904, the filter tank 3 is prevented from being blocked, and the sample injection work of a gas chromatograph experiment of sucking equipment is completed. Can realize that liquid filters in getting into filtering storehouse 3 by the second unit valve, the rethread first unit valve flows to the cleanness of filtering storehouse 3 of cleaning device 9 for be difficult for taking place to block up when sucking the equipment and advance again, improve gas chromatograph's success rate.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (8)
1. Anti-blocking microinjector sucking device for gas chromatograph test, which comprises a cylinder (1), and is characterized in that: two round holes (2) are formed in the lower end of the cylindrical drum (1), the round holes (2) are fixedly connected with a filter bin (3) at the edge of the round hole (2) on one side of the cylindrical drum (1), twelve filter tanks (4) are formed in the edge of the filter bin (3) at equal intervals, a fixing frame (5) is fixedly connected with the middle of the cylindrical drum (1), a linkage structure is slidingly connected with the middle of the fixing frame (5), a push rod (6) is slidingly connected with the middle of the fixing frame (5), a rubber plug (7) is fixedly connected with the lower end of the push rod (6), a placing groove (8) is formed in the middle of the rubber plug (7), a cleaning device (9) is fixedly connected with the middle of the placing groove (8), the cleaning device (9) comprises a pipe body (901), a flexible pipe (902) is arranged at the outer end of the pipe body (901), a storage box (903) is fixedly connected with the lower end of the pipe body (901), twelve pipes (904) are connected with the outer end of the storage box (903) at equal angles, a water outlet (905) is formed in the upper end of the storage box (903), a water outlet (905) is formed in the upper end of the storage box, the storage box is fixedly connected with a disc-shaped pipe (902) through a hinge joint (90), two fixed orifices (11) have been seted up at connecting block (10) middle part, two fixed orifices (11) middle part fixedly connected with first unit valve and second unit valve respectively, first unit valve and second unit valve all include casing (1201), water hole (1202) have all been seted up at both ends about casing (1201), compression spring (1203) of second unit valve are fixedly connected with second unit valve in casing (1201) middle part upper end, compression spring (1203) of first unit valve are fixedly connected with first unit valve in casing (1201) middle part lower extreme, casing (1201) middle part sliding connection has dog (1204), dog (1204) outer end equiangular fixedly connected with horizontal pole (1205), connecting block (10) lower extreme fixedly connected with U-shaped pipe (13), U-shaped pipe (13) lower extreme through-connection has suction needle (15), first unit valve control liquid only can flow from the equipment, and second unit valve control liquid only can follow external world inflow equipment to first unit valve and second unit valve will be pressed down in compression spring (1204) through compression spring (1204) top hole (1204) negative pressure at the top of second unit valve (1204) side-end equiangular fixedly connected with dog (1204).
2. An anti-clogging microinjector aspiration device for gas chromatograph experiments according to claim 1, wherein: the area of the water outlet (905) is larger than the cross section of the rectangular pipe (904), and particles in the filter tank (4) flow into the storage box (903) through the rectangular pipe (904).
3. An anti-clogging microinjector aspiration device for gas chromatograph experiments according to claim 1, wherein: the rotation angle of the limiting hinge (906) is 0-30 degrees, and the cover plate (907) is matched with the water outlet (905).
4. An anti-clogging microinjector aspiration device for gas chromatograph experiments according to claim 1, wherein: the cleaning device (9) is positioned in the middle of the filter bin (3), and the rectangular pipe (904) corresponds to the filter tank (4) respectively.
5. An anti-clogging microinjector aspiration device for gas chromatograph experiments according to claim 1, wherein: the pipe body (901) is communicated with the dish-shaped hose (902), and the inside material of the dish-shaped hose (902) is elastic plastic.
6. An anti-clogging microinjector aspiration device for gas chromatograph experiments according to claim 1, wherein: a chute is formed in the edge of the shell (1201), and the chute is matched with the cross rod (1205).
7. An anti-clogging microinjector aspiration device for gas chromatograph experiments according to claim 1, wherein: the push rod (6) is a quadrangular prism, and the length of the push rod (6) is ten centimeters.
8. An anti-clogging microinjector aspiration device for gas chromatograph experiments according to claim 1, wherein: the outer end of the U-shaped pipe (13) is fixedly connected with a sheath (14), and the suction needle (15) penetrates through the sheath (14) to be communicated with the U-shaped pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210261579.1A CN114577963B (en) | 2022-03-17 | 2022-03-17 | Anti-blocking microinjector sucking device for gas chromatograph test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210261579.1A CN114577963B (en) | 2022-03-17 | 2022-03-17 | Anti-blocking microinjector sucking device for gas chromatograph test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114577963A CN114577963A (en) | 2022-06-03 |
| CN114577963B true CN114577963B (en) | 2024-05-28 |
Family
ID=81775217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210261579.1A Active CN114577963B (en) | 2022-03-17 | 2022-03-17 | Anti-blocking microinjector sucking device for gas chromatograph test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114577963B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190910538A (en) * | 1909-05-04 | 1910-07-04 | George Higginson | Improvements in and relating to Syringes. |
| GB1037837A (en) * | 1963-12-24 | 1966-08-03 | George Francis Gilbert Clough | Improvements in or relating to strainers for liquids flowing under pressure |
| US4391274A (en) * | 1981-06-26 | 1983-07-05 | Becton, Dickinson And Company | Filtered hub device for aspirating and injecting liquids |
| WO1986001728A2 (en) * | 1984-09-07 | 1986-03-27 | Wolfgang Wagner | Injection device with sensor |
| KR101419839B1 (en) * | 2013-12-16 | 2014-07-15 | 송태섭 | Filter unit for syringe and syringe having the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3781940B1 (en) * | 2018-04-19 | 2024-05-29 | Waters Technologies Corporation | Filtration device for chromatographic instruments |
| US11371969B2 (en) * | 2019-12-23 | 2022-06-28 | Joseph George Bonda | Gas-analysis sample injection system and method |
-
2022
- 2022-03-17 CN CN202210261579.1A patent/CN114577963B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190910538A (en) * | 1909-05-04 | 1910-07-04 | George Higginson | Improvements in and relating to Syringes. |
| GB1037837A (en) * | 1963-12-24 | 1966-08-03 | George Francis Gilbert Clough | Improvements in or relating to strainers for liquids flowing under pressure |
| US4391274A (en) * | 1981-06-26 | 1983-07-05 | Becton, Dickinson And Company | Filtered hub device for aspirating and injecting liquids |
| WO1986001728A2 (en) * | 1984-09-07 | 1986-03-27 | Wolfgang Wagner | Injection device with sensor |
| KR101419839B1 (en) * | 2013-12-16 | 2014-07-15 | 송태섭 | Filter unit for syringe and syringe having the same |
Non-Patent Citations (1)
| Title |
|---|
| 2种微型化学实验过滤装置;张庆云;;化学教育;20090928(第09期);第59页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114577963A (en) | 2022-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114577963B (en) | Anti-blocking microinjector sucking device for gas chromatograph test | |
| CN116931119B (en) | Automatic fog monitoring device and using method | |
| CN214373606U (en) | Automatic sampling device for sewage discharge | |
| CN111855378B (en) | Wild natural water sample collection system and method | |
| CN216933017U (en) | Dirt collecting device and cleaning equipment | |
| CN211133242U (en) | Swimming pool and artificial lake landscape water treatment equipment | |
| CN209673434U (en) | Check sampling device | |
| CN208140424U (en) | A kind of Portable water sample sampler | |
| CN107328607B (en) | Specimen box subassembly and container | |
| CN217696425U (en) | Docking mechanism for clear water tank waterway and base station clear water tank waterway of floor washing robot | |
| CN218580784U (en) | High-efficient municipal drainage device | |
| CN217111661U (en) | Desalted water sampling measuring bottle | |
| CN216160601U (en) | Vertical water quality control instrument | |
| CN220104568U (en) | Water quality detection equipment | |
| CN212207214U (en) | High performance liquid chromatograph with prevent blockking up | |
| CN203507970U (en) | Slurry discharging device | |
| CN212007970U (en) | Water sampling device for sewage treatment convenient to operation | |
| CN213779600U (en) | Sampling device | |
| CN211585441U (en) | Water filter | |
| CN216062315U (en) | Novel sample filtering device | |
| CN215677726U (en) | Portable various sampler | |
| CN219179036U (en) | Continuous preparation device for water sample soluble organic matters | |
| CN220386071U (en) | Filtering device of gas chromatograph | |
| CN216621870U (en) | Sampling device that municipal administration sewage treatment used | |
| CN216677652U (en) | Toxic gas filtering and adsorbing device for Karl Fischer reagent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |