CN112816606A - Chromatographic separation and analysis device with high automation degree - Google Patents
Chromatographic separation and analysis device with high automation degree Download PDFInfo
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- 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
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- G01N30/18—Injection using a septum or microsyringe
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Abstract
The application relates to a chromatographic separation analysis device with high automation degree, relating to the technical field of chromatograph, comprising a machine body and a sample inlet arranged on the outer side wall of the machine body, wherein the sample inlet is communicated with the interior of the machine body, and a controller is arranged in the machine body; a first sample inlet pipe communicated with the sample inlet is fixedly arranged on the outer side wall of the machine body, one end of the first sample inlet pipe, far away from the machine body, is communicated with a second sample inlet pipe, and the second sample inlet pipe is arranged along the vertical direction; a group of mounting rods are symmetrically and fixedly arranged on the machine body, a clamping assembly is arranged between the mounting rods and above the second sample injection tube, a pressing assembly is arranged on the machine body and above the clamping assembly, and the pressing assembly is used for pressing a piston rod in the needle cylinder; the clamping assembly and the pressing assembly are connected with the controller. This application has the effect that realizes annotating the appearance with the solution in the cylinder to the device in automatically, reduces staff's the operation degree of difficulty and intensity of labour.
Description
Technical Field
The application relates to the technical field of chromatographs, in particular to a chromatographic separation analysis device with high automation degree.
Background
At present, ion chromatography is one of high performance liquid chromatography, also called high performance ion chromatography or modern ion chromatography, which is different from traditional ion exchange chromatography column chromatography mainly in that resin has high crosslinking degree and low exchange capacity, sample introduction volume is small, and a plunger pump is used for conveying leacheate to generally carry out on-line automatic continuous conductivity detection on leacheate.
The Chinese patent with the application number of CN203365395U designed in the related technology provides a high-precision ion chromatography detection device, which comprises a column temperature box provided with a chromatographic column, a conductance cell provided with a conductance cell and an inhibitor, and an inhibitor box respectively arranged in a case of an ion chromatograph, wherein the column temperature box is respectively adjacent to a protective column, the inhibitor and the conductance cell, a sample inlet is arranged on the edge of a door plate, and a needle cylinder is adopted for solution injection during sample injection.
In view of the above-mentioned related technologies, the inventor believes that when the chromatography detection device injects detection liquid through the syringe, one hand of a worker is needed to stabilize the syringe, the other hand pushes the piston rod in the syringe, the operation of the worker is cumbersome, the worker is inconvenient to work for a long time, and when a plurality of samples are detected, the labor intensity of the worker is high.
Disclosure of Invention
In order to realize that the solution in the needle cylinder is automatically injected into the device, the operation difficulty and the labor intensity of workers are reduced, and the chromatographic separation analysis device with high automation degree is convenient to provide.
The application provides a chromatographic separation analytical equipment that degree of automation is high adopts following technical scheme:
a chromatographic separation analysis device with high automation degree comprises a machine body and a sample inlet arranged on the outer side wall of the machine body, wherein the sample inlet is mutually communicated with the interior of the machine body, and a controller is arranged in the machine body; a first sample inlet pipe communicated with the sample inlet is fixedly arranged on the outer side wall of the machine body, one end of the first sample inlet pipe, far away from the machine body, is communicated with a second sample inlet pipe, and the second sample inlet pipe is arranged along the vertical direction; a group of mounting rods are symmetrically and fixedly arranged on the machine body, clamping assemblies are arranged between the mounting rods and above the second sample injection pipe, and the clamping assemblies are used for clamping and fixing the needle cylinder; a pressing component is arranged on the machine body and above the clamping component, and the pressing component is used for pressing a piston rod in the needle cylinder; the clamping assembly and the pressing assembly are connected with the controller.
Through adopting above-mentioned technical scheme, when annotating a sample in to the organism through the cylinder, the staff inserts the needle mouth on with the cylinder and establishes to the second injection tube in, through controller control centre gripping subassembly work this moment, centre gripping subassembly carries out the centre gripping to the cylinder fixed, ensure that the cylinder is in vertical state, then the work of controller control pressing assembly, pressing assembly presses down the piston rod on the cylinder, thereby inject the detection liquid in the cylinder to the second injection tube in, it circulates to the first injection tube in to detect liquid from the second injection tube, and finally get into in the injection port, need not artificial support and press the cylinder, the degree of automation when having improved the device appearance of advance, staff's the operation degree of difficulty and intensity of labour have been reduced.
Optionally, the clamping assembly includes a first motor, a driving rod, a guide rod and an arc-shaped clamping block, the first motor is fixedly mounted on an outer side wall of one of the mounting rods, the driving rod is rotatably disposed between the two mounting rods, the guide rod is fixedly disposed between the two mounting rods, and a driving shaft of the first motor is fixedly connected with the driving rod; the arc-shaped clamping blocks are arranged on the guide rod in a sliding mode, a first thread section and a second thread section are symmetrically arranged on the outer side wall of the driving rod, the screwing directions of the first thread section and the second thread section are opposite, one of the first thread section and the second thread section is in threaded connection with the arc-shaped clamping block, and the other one of the first thread section and the second thread section is in threaded connection with the arc-shaped clamping block.
Through adopting above-mentioned technical scheme, inserting the needle mouth on the cylinder and establishing to the back in the second sampling tube, first motor control actuating lever rotates, because the precession opposite direction of first screw thread section and second screw thread section, the guide bar leads the arc grip block this moment, and two arc grip blocks can be simultaneously opposite movement or back-to-back motion, utilize the arc grip block to offset the lateral wall of cylinder to the realization is fixed to the spacing of cylinder, and is fixed effectual.
Optionally, a first pressure sensor is arranged on the opposite surface of the arc-shaped clamping block and located at the center, the first pressure sensor is connected with a controller, the first motor is connected with the controller, and the controller is used for controlling the first motor to stop working when the first pressure sensor detects that the pressure exceeds a set value.
Through adopting above-mentioned technical scheme, when two arc grip blocks of first motor control are close to each other, first pressure sensor on the arc grip block offsets with the cylinder lateral wall, first pressure sensor detects the pressure between arc grip block and the cylinder, first pressure sensor transmits the pressure detection signal for the controller, when the pressure value exceeded the setting value, the first motor stop work of controller control, avoid the arc grip block to produce the damage to the cylinder extrusion, the centre gripping subassembly can carry out the centre gripping automatically to the cylinder of different diameters size fixedly, the suitability of device has been improved.
Optionally, the pressing assembly includes a second motor, a screw rod, a sliding block and a pressing plate, a sliding groove is formed in the outer side wall of the machine body along the vertical direction, the screw rod is rotatably arranged in the sliding groove, the second motor is fixedly mounted on the machine body, a driving shaft of the second motor is fixed to the screw rod, the sliding block is slidably arranged in the sliding groove and is in threaded connection with the screw rod, an end wall of the sliding block is fixedly connected with the pressing plate, and the pressing plate is located right above the second sample inlet pipe; the second motor is interconnected with the controller.
Through adopting above-mentioned technical scheme, after the centre gripping subassembly was fixed to the cylinder centre gripping, the second motor drive lead screw rotated, and the slider offsets with the inside wall of spout this moment, and then drives the clamp plate and move on vertical direction, offsets the piston rod on clamp plate and the cylinder to the realization is to the press work of piston rod.
Optionally, a relief is provided on the lower surface of the pressure plate.
Through adopting above-mentioned technical scheme, the burr has increased the frictional force of clamp plate lower surface, when the clamp plate is pressing the tip of cylinder piston rod, is difficult for taking place to slide between cylinder tip and the clamp plate to the cylinder takes place the slope when avoiding advancing the appearance.
Optionally, a support rod is fixedly arranged on the outer side wall of the machine body, the support rod abuts against the lower surface of the first sample injection pipe, and a second pressure sensor is arranged between the support rod and the first sample injection pipe; the second pressure sensor is connected with the controller, and the controller is used for controlling the second motor to stop working when the second pressure sensor detects that the pressure exceeds a set value.
By adopting the technical scheme, when the pressing assembly extrudes the needle cylinder, the supporting rod supports the first sampling tube and the second sampling tube, so that the strength of the device is improved; meanwhile, the second pressure sensor detects the pressure on the supporting rod, and when the pressure value detected by the second pressure sensor exceeds a set value, the controller controls the pressing assembly to stop working, so that the needle cylinder is prevented from being damaged by the pressure of the pressing assembly, and the device can adapt to the sample injection of the needle cylinders with different length specifications.
Optionally, a touch groove has been seted up on the top of second sampling pipe, be provided with the light touch switch in the touch groove, the light touch switch links to each other with the controller, the controller is used for successively controlling first motor and second motor work after the light touch switch detects touch signal.
Through adopting above-mentioned technical scheme, when needing to advance kind to the detection liquid in the cylinder and detect, the staff inserts the needle mouth and establishes to the second sampling pipe in, and the end wall and the light touch switch of cylinder offset, and the light touch switch detects the cylinder and takes one's place and sends the signal to the controller, and the controller is control clamping component and is pressed the subassembly work successively to need not the start of artificial control first motor and second motor, the degree of automation of device is high.
Optionally, the inner side wall of the second sample injection pipe and the top of the inner side wall are fixedly provided with a rubber ring.
Through adopting above-mentioned technical scheme, the staff is inserting the needle mouth of cylinder and is establishing to the back in the second sampling tube, and the rubber ring offsets with the inside wall of needle mouth to fix in advance the cylinder, thereby the centre gripping subassembly is before fixed with the complete centre gripping of cylinder, and the staff need not to hand the cylinder, can guarantee that the cylinder is in vertical state, has further improved staff's convenient operation nature.
Optionally, fixed mounting has the mounting panel on the lateral wall of first appearance pipe, the fixed appearance cylinder that pushes away that is provided with on the mounting panel, the piston rod that pushes away the appearance cylinder stretches into in the first appearance pipe, the piston rod fixedly connected with that pushes away the appearance cylinder pushes away the appearance stopper, the lateral wall that pushes away the appearance stopper offsets with the inside wall of first appearance pipe, it links to each other with the controller to push away the appearance cylinder.
Through adopting above-mentioned technical scheme, after pressing the subassembly and extrudeing the detection liquid in the cylinder to the second sampling tube, detect liquid and circulate to first sampling tube through the second sampling tube in, controller control pushes away a kind cylinder work this moment, pushes away a kind cylinder and orders about and pushes away a kind stopper and slide in first sampling tube, can be fast with detecting liquid extrusion to the sampling port in the first sampling tube in, improved detection efficiency.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the first sample inlet pipe, the second sample inlet pipe, the mounting rod, the first motor, the driving rod, the guide rod, the arc-shaped clamping block, the second motor, the lead screw, the slide block, the slide groove, the pressing plate and the convex patterns, when the detection liquid in the needle cylinder is subjected to sample injection, the needle cylinder does not need to be manually supported and pressed, the automation degree of the device during sample injection is improved, and the operation difficulty and the labor intensity of workers are reduced;
2. by arranging the controller, the first pressure sensor, the second pressure sensor and the tact switch, the automation degree of the device is improved, the applicability of the device is improved, and the needle cylinders with different specifications and sizes can be conveniently fed into the machine body;
3. through setting up the mounting panel, pushing away a kind cylinder and pushing away a kind stopper, can extrude the detection liquid in the first sampling pipe to the introduction port fast in, improved detection efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a highly automated chromatographic separation and analysis device in an embodiment of the present application.
Fig. 2 is an enlarged view of a portion a in fig. 1.
FIG. 3 is a schematic cross-sectional view of a highly automated chromatographic separation device in an embodiment of the present application.
Fig. 4 is an enlarged view of a portion B in fig. 3.
Fig. 5 is a system block diagram of a highly automated chromatographic separation and analysis device in an embodiment of the present application.
Description of reference numerals: 1. a body; 11. a sample inlet; 12. a controller; 13. mounting a rod; 14. a chute; 21. a first sample introduction pipe; 22. a second sample injection pipe; 3. a clamping assembly; 31. a first motor; 32. a drive rod; 321. a first thread segment; 322. a second thread segment; 33. a guide bar; 34. an arc-shaped clamping block; 341. a first pressure sensor; 4. a pressing assembly; 41. a second motor; 42. a screw rod; 43. a slider; 44. pressing a plate; 441. a relief pattern; 5. a support bar; 51. a second pressure sensor; 6. touching the groove; 61. a tact switch; 7. a rubber ring; 8. mounting a plate; 81. a sample pushing cylinder; 82. pushing a sample plug; 9. a needle cylinder; 91. a needle nozzle; 92. a piston rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses chromatographic separation analytical equipment that degree of automation is high. Referring to fig. 1 and 3, the apparatus includes a body 1 and a sample inlet 11 formed on an outer side wall of the body 1, the sample inlet 11 is communicated with an inside of the body 1, and the sample inlet 11 is used for conveying a detection liquid. The outer side wall of the machine body 1 is fixedly welded with a first sample inlet pipe 21 communicated with the sample inlet 11, and the first sample inlet pipe 21 is arranged along the horizontal direction. One end of the first sampling pipe 21, which is far away from the machine body 1, is communicated with a second sampling pipe 22, and the second sampling pipe 22 is arranged along the vertical direction.
Referring to fig. 3 and 4, the rubber ring 7 is fixedly bonded to the top of the inner sidewall of the second sample injection tube 22, the rubber ring 7 is coaxial with the second feed tube, when the syringe 9 is fed, the needle nozzle 91 of the syringe 9 is inserted into the second sample injection tube 22, and the rubber ring 7 abuts against the outer sidewall of the syringe 9 to prevent the syringe 9 from tilting.
Referring to fig. 1 and 2, a set of mounting rods 13 is symmetrically welded and fixed on the machine body 1, a clamping assembly 3 is arranged between the mounting rods 13 and above the second sample injection tube 22, the clamping assembly 3 includes a first motor 31, a driving rod 32, a guide rod 33 and an arc-shaped clamping block 34, the first motor 31 is fixedly mounted on the outer side wall of one of the mounting rods 13 through a bolt, the driving rod 32 is rotatably arranged between the two mounting rods 13, the guide rod 33 is welded and fixed between the two mounting rods 13, and a driving shaft of the first motor 31 is fixedly connected with the driving rod 32.
Referring to fig. 2, two arc-shaped clamping blocks 34 are arranged on the guide rod 33 in a sliding manner, the arc-shaped clamping blocks 34 can slide along the length direction of the guide rod 33, a first thread section 321 and a second thread section 322 are symmetrically arranged on the outer side wall of the driving rod 32 along the central line direction of the second sampling tube 22, and the screwing directions of the first thread section 321 and the second thread section 322 are opposite. One of the arc-shaped clamping blocks 34 is in threaded connection with the first threaded section 321, the other arc-shaped clamping block 34 is in threaded connection with the second threaded section 322, and the arc-shaped clamping blocks 34 are symmetrically arranged. After the needle nozzle 91 on the needle cylinder 9 is inserted into the second sample inlet tube 22, the first motor 31 drives the driving rod 32 to rotate, so as to drive the arc-shaped clamping blocks 34 to abut against the guide rod 33, so as to drive the two arc-shaped clamping blocks 34 to approach each other, and the arc-shaped clamping blocks 34 can abut against the outer side wall of the needle cylinder 9, so as to abut against and fix the needle cylinder 9.
Referring to fig. 2 and 5, the controller 12 is disposed in the machine body 1, the first pressure sensor 341 is disposed on the opposite surface of the arc-shaped clamping block 34 and at the center, and when the arc-shaped clamping block 34 clamps and tightly supports the syringe 9, the first pressure sensor 341 detects the acting force between the arc-shaped clamping block 34 and the syringe 9. The first pressure sensor 341 is connected to the controller 12, the first motor 31 is connected to the controller 12, the first pressure sensor 341 transmits a pressure detection signal to the controller 12, and when the controller 12 detects that the pressure signal exceeds a set value, the controller 12 controls the first motor 31 to stop working, so that the clamping assembly 3 can automatically clamp and fix the syringes 9 with different diameters.
Referring to fig. 3, a pressing assembly 4 is arranged on the machine body 1 and above the clamping assembly 3, the pressing assembly 4 includes a second motor 41, a screw rod 42, a slider 43 and a pressing plate 44, the machine body 1 is provided with a chute 14 on one side facing the direction of the second sample injection tube 22, the chute 14 is arranged along the vertical direction, the screw rod 42 is rotatably arranged in the chute 14 along the vertical direction, the second motor 41 is fixedly mounted on the machine body 1 through a bolt, and a driving shaft of the second motor 41 is mutually fixed with the screw rod 42.
Referring to fig. 2 and 3, the sliding block 43 is slidably disposed in the sliding chute 14, an outer side wall of the sliding block 43 is attached to an inner side wall of the sliding chute 14, the sliding block 43 is in threaded connection with the screw rod 42, an end wall of the sliding block 43 is fixedly connected with the pressing plate 44 by welding, the pressing plate 44 is horizontally disposed, and the pressing plate 44 is located right above the second sampling tube 22. The lower surface of the pressing plate 44 is provided with embossed patterns 441, and the embossed patterns 441 increase the frictional force of the lower surface of the pressing plate 44. After the clamping assembly 3 clamps and fixes the needle cylinder 9, the second motor 41 drives the screw rod 42 to rotate in the chute 14, at this time, the sliding block 43 abuts against the inner side wall of the chute 14, and further the sliding block 43 is driven to slide in the chute 14, so that the pressing plate 44 moves in the vertical direction, the bottom wall of the pressing plate 44 abuts against the piston rod 92 of the needle cylinder 9, and therefore the detection liquid in the needle cylinder 9 is injected into the second sample injection tube through the pressing plate 44.
Referring to fig. 3 and 5, a support rod 5 is fixedly welded to the outer side wall of the machine body 1, the support rod 5 abuts against the lower surface of the first sample tube 21, and a second pressure sensor 51 is disposed between the support rod 5 and the first sample tube 21. The second pressure sensor 51 is connected to the controller 12, and the second pressure sensor 51 detects the pressure applied to the support rod 5 when the pressing assembly 4 presses the syringe 9. The second motor 41 is connected to the controller 12, the second pressure sensor 51 transmits a detected pressure signal to the controller 12, and the controller 12 controls the second motor 41 to stop working when detecting that the pressure value exceeds a set value, so as to prevent the syringe 9 from being damaged by the pressure of the pressing assembly 4.
Referring to fig. 4 and 5, a touch groove 6 is formed in the top end of the second sample injection tube 22, a tact switch 61 is fixedly bonded in the touch groove 6, and the tact switch 61 is connected to the controller 12. When the worker inserts the needle nozzle 91 of the needle cylinder 9 into the second feeding pipe, the needle cylinder 9 and the tact switch 61 are in contact with each other, the tact switch 61 detects that the needle cylinder 9 is in position, the tact switch 61 sends a signal to the controller 12, then the controller 12 controls the clamping assembly 3 and the pressing assembly 4 to work in sequence, and the automation degree of the device is high.
Referring to fig. 3 and 5, a mounting plate 8 is fixedly mounted on the outer side wall of the first sample injection pipe 21, a sample pushing cylinder 81 connected with the controller 12 is fixedly arranged on the mounting plate 8 through bolts, a piston rod of the sample pushing cylinder 81 penetrates through the first sample injection pipe 21 and is fixedly connected with a sample pushing plug 82, and the sample pushing plug 82 is made of rubber. The outer side wall of the sample pushing plug 82 is abutted to the inner side wall of the first sample feeding pipe 21, after detection liquid in the second sample feeding pipe 22 flows into the first sample feeding pipe 21, the controller 12 controls the sample pushing cylinder 81 to work, the sample pushing cylinder 81 drives the sample pushing plug 82 to slide in the first sample feeding pipe 21, the sample pushing plug 82 rapidly extrudes the detection liquid in the first sample feeding pipe 21 into the sample inlet 11, and the detection efficiency is improved.
The implementation principle of the chromatographic separation analysis device with high automation degree in the embodiment of the application is as follows: when the detection liquid in the needle cylinder 9 needs to be injected into the machine body 1, after the needle nozzle 91 on the needle cylinder 9 is inserted into the second sample inlet tube 22 by a worker, the needle cylinder 9 abuts against the tact switch 61 at the moment, the tact switch 61 detects that the needle cylinder 9 is in place, then the controller 12 controls the first motor 31 to work, the first motor 31 drives the two arc-shaped clamping blocks 34 to mutually approach, when the pressure value detected by the first pressure sensor 341 exceeds a set value, the first motor 31 stops working, and at the moment, the two arc-shaped clamping blocks 34 clamp and fix the needle cylinder 9, so that the needle cylinder 9 is ensured to be in a vertical state.
Then, the controller 12 controls the second motor 41 to operate, the second motor 41 drives the screw rod 42 to rotate, and further drives the pressing plate 44 to move in the vertical direction, the pressing plate 44 extrudes the piston rod 92 on the syringe 9, and when the pressure value detected by the second pressure sensor 51 exceeds the set value, the second motor 41 stops operating, so that the detection liquid in the syringe 9 is injected into the second sampling tube.
Detect liquid and flow back in to first sampling pipe through the second sampling pipe, controller 12 control pushes away a kind cylinder 81 work, pushes away the material cylinder and drives and push away a kind stopper 82 and slide in first adoption pipe, will detect liquid and extrude fast to adopting in the mouth, realizes automatic injecting the detection liquid in cylinder 9 to injection port 11 in, need not artificially to support and press cylinder 9, has improved the degree of automation of device, has reduced staff's the operation degree of difficulty and intensity of labour.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A chromatographic separation analysis device with high automation degree comprises a machine body (1) and a sample inlet (11) arranged on the outer side wall of the machine body (1), wherein the sample inlet (11) is communicated with the interior of the machine body (1), and a controller (12) is arranged in the machine body (1); the method is characterized in that: a first sample inlet pipe (21) communicated with the sample inlet (11) is fixedly arranged on the outer side wall of the machine body (1), one end, far away from the machine body (1), of the first sample inlet pipe (21) is communicated with a second sample inlet pipe (22), and the second sample inlet pipe (22) is arranged in the vertical direction; a group of mounting rods (13) are symmetrically and fixedly arranged on the machine body (1), clamping assemblies (3) are arranged between the mounting rods (13) and above the second sample injection pipe (22), and the clamping assemblies (3) are used for clamping and fixing the needle cylinder; a pressing component (4) is arranged on the machine body (1) and above the clamping component (3), and the pressing component (4) is used for pressing a piston rod in the needle cylinder; the clamping assembly (3) and the pressing assembly (4) are connected with the controller (12) mutually.
2. A highly automated chromatographic separation analysis device in accordance with claim 1 wherein: the clamping assembly (3) comprises a first motor (31), a driving rod (32), a guide rod (33) and an arc-shaped clamping block (34), the first motor (31) is fixedly installed on the outer side wall of one of the installation rods (13), the driving rod (32) is rotatably arranged between the two installation rods (13), the guide rod (33) is fixedly arranged between the two installation rods (13), and a driving shaft of the first motor (31) is fixedly connected with the driving rod (32); arc centre gripping piece (34) are provided with two and slide and set up on guide bar (33), the symmetry is provided with first screw thread section (321) and second screw thread section (322) on the lateral wall of actuating lever (32), the precession direction of first screw thread section (321) and second screw thread section (322) is opposite, one of them arc centre gripping piece (34) and first screw thread section (321) threaded connection, another arc centre gripping piece (34) and second screw thread section (322) threaded connection.
3. A highly automated chromatographic separation analysis device in accordance with claim 2 wherein: the clamping device is characterized in that a first pressure sensor (341) is arranged on the opposite surface of the arc-shaped clamping block (34) and in the center, the first pressure sensor (341) is connected with a controller (12), the first motor (31) is connected with the controller (12), and the controller (12) is used for controlling the first motor (31) to stop working when the first pressure sensor (341) detects that the pressure exceeds a set value.
4. A highly automated chromatographic separation analysis device in accordance with claim 3 wherein: the pressing assembly (4) comprises a second motor (41), a screw rod (42), a sliding block (43) and a pressing plate (44), a sliding groove (14) is formed in the outer side wall of the machine body (1) in the vertical direction, the screw rod (42) is rotatably arranged in the sliding groove (14), the second motor (41) is fixedly installed on the machine body (1), a driving shaft of the second motor (41) is fixed with the screw rod (42) mutually, the sliding block (43) is slidably arranged in the sliding groove (14) and is in threaded connection with the screw rod (42), the end wall of the sliding block (43) is fixedly connected with the pressing plate (44), and the pressing plate (44) is located right above the second sample inlet pipe (22); the second motor (41) is interconnected with the controller (12).
5. The highly automated chromatographic separation analysis device of claim 4, wherein: the lower surface of the pressure plate (44) is provided with a convex pattern (441).
6. The highly automated chromatographic separation analysis device of claim 5, wherein: a support rod (5) is fixedly arranged on the outer side wall of the machine body (1), the support rod (5) is abutted against the lower surface of the first sample injection pipe (21), and a second pressure sensor (51) is arranged between the support rod (5) and the first sample injection pipe (21); the second pressure sensor (51) is connected with the controller (12), and the controller (12) is used for controlling the second motor (41) to stop working when the second pressure sensor (51) detects that the pressure exceeds a set value.
7. The highly automated chromatographic separation analysis device of claim 6, wherein: touch groove (6) have been seted up on the top of second advance appearance pipe (22), be provided with in touch groove (6) and dabble switch (61), dabble switch (61) links to each other with controller (12), controller (12) are used for touching switch (61) and detect behind the touch signal successively control first motor (31) and second motor (41) work.
8. A highly automated chromatographic separation analysis device in accordance with claim 1 wherein: and a rubber ring (7) is fixedly arranged on the inner side wall of the second sample inlet pipe (22) and positioned at the top of the second sample inlet pipe.
9. A highly automated chromatographic separation analysis device in accordance with claim 8 wherein: fixed mounting has mounting panel (8) on the lateral wall of first appearance pipe (21), fixed being provided with on mounting panel (8) pushes away appearance cylinder (81), the piston rod that pushes away appearance cylinder (81) stretches into in first appearance pipe (21), the piston rod fixedly connected with that pushes away appearance cylinder (81) pushes away appearance stopper (82), the lateral wall that pushes away appearance stopper (82) offsets with the inside wall of first appearance pipe (21), it links to each other with controller (12) to push away appearance cylinder (81).
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| CN202110162354.6A CN112816606A (en) | 2021-02-05 | 2021-02-05 | Chromatographic separation and analysis device with high automation degree |
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| CN202110162354.6A CN112816606A (en) | 2021-02-05 | 2021-02-05 | Chromatographic separation and analysis device with high automation degree |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113552279A (en) * | 2021-07-21 | 2021-10-26 | 常州民生环境检测有限公司 | Quick sample preparation equipment for ion chromatographic analysis test |
| CN117269388A (en) * | 2023-10-30 | 2023-12-22 | 西南大学 | Automatic sample injection device and method for gas chromatograph mass spectrometer |
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| CN113552279B (en) * | 2021-07-21 | 2024-02-06 | 常州民生环境检测有限公司 | Quick sample preparation equipment for ion chromatographic analysis test |
| CN117269388A (en) * | 2023-10-30 | 2023-12-22 | 西南大学 | Automatic sample injection device and method for gas chromatograph mass spectrometer |
| CN117269388B (en) * | 2023-10-30 | 2024-05-07 | 西南大学 | Automatic sample injection device and method for gas chromatograph mass spectrometer |
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