CN115684444B - Acquisition and extraction system and method for liquid chromatograph solvent - Google Patents
Acquisition and extraction system and method for liquid chromatograph solvent Download PDFInfo
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- CN115684444B CN115684444B CN202211182741.7A CN202211182741A CN115684444B CN 115684444 B CN115684444 B CN 115684444B CN 202211182741 A CN202211182741 A CN 202211182741A CN 115684444 B CN115684444 B CN 115684444B
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Abstract
The invention discloses a collecting and extracting system for a liquid chromatograph solvent, wherein a device adopted by the collecting and extracting system comprises a base, the upper end surface of the base is fixedly connected with a cylinder, and the upper end surface of the cylinder is slidably connected with a bracket. According to the invention, the test tube filled with the solvent is sequentially placed in the placing hole, the driving mechanism drives the support to rotate, so that the test tube is driven to rotate to the position to be extracted and stop, meanwhile, the driving wheel is driven to rotate, the suction tube is driven to move to the test tube at the position to be extracted through the driving mechanism, the solvent in the test tube is extracted through the vacuum pump and is transmitted to the chromatograph, the slide block continues to move along the second slide groove after the extraction is finished to drive the suction tube to move to the cleaning barrel for cleaning, and then the driving motor continues to drive the disc to rotate, so that the chromatograph can detect various different solutions, the detection efficiency is high, and the detection requirement of a large batch can be realized.
Description
Technical Field
The invention relates to the technical field of chromatograph solvent extraction, in particular to a collecting and extracting system and method for a liquid chromatograph solvent.
Background
The chromatographic analysis method is a separation and analysis method, and has very wide application in the fields of analytical chemistry, organic chemistry, biochemistry and the like, wherein the chromatographic analysis method is divided into gas chromatography, liquid chromatography, gas fixation chromatography, gas-liquid chromatography, liquid fixation chromatography and liquid-liquid chromatography according to the two phases of a mobile phase and a stationary phase in the chromatographic analysis process, wherein the liquid chromatography is generally adopted for analysis when the solution composition is analyzed, and the used analysis instrument is a liquid chromatograph.
Liquid chromatograph is in the use will wait to detect liquid through the liquid storage test tube dress in general then put the liquid storage test tube in the liquid storage tank reuse pipeline switch-on liquid storage test tube and detection device, so can only detect one kind and wait to detect liquid, detect more singlely and inefficiency, can't realize the detection demand in batches, if need detect multiple solution simultaneously, then need be provided with a plurality of liquid storage test tubes, cause the volume of liquid chromatograph equipment itself great, relatively heavy, it is also very inconvenient to change the liquid storage test tube simultaneously. Therefore, a system and method for collecting and extracting solvent for liquid chromatograph is provided.
Disclosure of Invention
The invention aims at: in order to solve the above problems, a system and a method for collecting and extracting a solvent for a liquid chromatograph are provided.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the device used for the liquid chromatograph solvent collecting and extracting system comprises a base, wherein the upper end surface of the base is fixedly connected with a barrel, the upper end surface of the barrel is slidably connected with a bracket, a placing hole is formed in the bracket, a test tube is placed in the placing hole, a driving mechanism for driving the bracket to intermittently rotate is arranged in the barrel, one side, far away from the barrel, of the upper end surface of the base is fixedly connected with a shell, the outer side wall of the shell is provided with an extracting mechanism matched with the test tube, and a transmission mechanism for connecting the driving mechanism and the extracting mechanism is arranged in the shell;
the extraction mechanism comprises a bottom plate, a second connecting shaft, a swing rod, a limit groove, a second sliding groove, a sliding block, a second sliding column, a moving table, a suction pipe, a connecting pipe and a cleaning cylinder, wherein the bottom plate is fixedly connected with the outer side wall of the shell, the second connecting shaft is rotationally connected to the bottom plate, one end of the second connecting shaft extends to one side of the bottom plate far away from the shell and is fixedly connected with the swing rod, the limit groove is formed in the swing rod, the second sliding groove is formed in the side surface wall of the bottom plate, the sliding block is connected in the sliding block in a sliding manner, the sliding block is fixedly connected with one end of the second sliding column, the moving table is fixedly connected with the other end of the second sliding column, the second sliding column is embedded in the limit groove and is in sliding connection with the limit groove, the suction pipe penetrates through the moving table, the upper end of the suction pipe extends to the upper side of the moving table and is connected with the connecting pipe through a screwing block, and the cleaning cylinder is fixedly connected to the bottom plate;
the transmission mechanism comprises a first supporting shaft, a swing arm, a second supporting shaft, an arc-shaped block, a first sliding groove and a first sliding column, wherein the first supporting shaft is rotationally connected with the bottom surface wall inside the shell, the first supporting shaft is driven by the driving mechanism, the upper end of the first supporting shaft is fixedly connected with the swing arm, the side surface wall inside the shell is rotationally connected with the second supporting shaft, the arc-shaped block is fixedly connected with the second supporting shaft, the first sliding groove is formed in the outer side wall of the arc-shaped block, the first sliding column is fixedly connected with one end of the swing arm far away from the first supporting shaft, the first sliding column is in sliding connection with the first sliding groove, and one end of the second connecting shaft far away from the swing rod extends into the shell and is coaxially and fixedly connected with the second supporting shaft;
the acquisition and extraction method of the acquisition and extraction system comprises the following steps:
s1: and (3) adding a solvent: sequentially placing test tubes filled with solvent into the placing holes;
s2: extraction solvent: the driving mechanism drives the support to intermittently rotate, meanwhile, the driving mechanism drives the first supporting shaft to rotate, the swing arm is driven to rotate, the arc-shaped block is driven to reciprocally swing by sliding in the first sliding groove through the first sliding column, the swing rod is driven to reciprocally swing by driving of the second supporting shaft and the second connecting shaft, and therefore the sliding block is driven to reciprocally slide in the second sliding groove, and the suction pipe is driven to firstly enter a test tube at a corresponding position to extract solvent;
s3: cleaning: after the extraction is finished, the waste water enters a cleaning cylinder along the path of the second chute for cleaning;
s4: repeating the operation: the driving mechanism drives the bracket to rotate, the next test tube is moved to the designated position, and meanwhile, the driving mechanism drives the suction tube to move into the test tube through the transmission mechanism to perform the operation of extracting the solvent again.
Preferably, the actuating mechanism includes driving motor, drive gear, driven gear, brace table, head rod, disc, breach, first connecting axle, dwang, gyro wheel, pawl, stopper, ratchet and second connecting rod, the inside end table wall fixedly connected with driving motor of barrel, driving motor's output fixedly connected with coaxial drive gear that sets up, barrel inside wall fixedly connected with brace table, rotate on the brace table and be connected with the head rod, the lower extreme of head rod extends to the below of brace table and fixedly connected with coaxial driven gear that sets up, drive gear and driven gear meshing are connected, the top of head rod extends to the top of brace table and fixedly connected with coaxial disc that sets up, the breach has been seted up to the disc periphery, rotate with the dwang through first connecting axle on the brace table, the dwang is close to disc one side and is connected with the gyro wheel, the dwang opposite side rotates and is connected with the pawl, terminal surface fixedly connected with coaxial second connecting rod under the support, the second connecting rod lower extreme extends to the inside and is fixedly connected with the ratchet that sets up to the same with the ratchet, the ratchet is close to one side of the ratchet that sets up with the ratchet.
Preferably, a torsion spring is sleeved on the rotating shaft between the pawl and the rotating block, and two ends of the torsion spring are fixedly connected with the rotating block and the pawl respectively so as to keep the open end of the pawl to be always attached to the ratchet wheel.
Preferably, the periphery of the disc is provided with a first magnetic strip, and the periphery of the roller is provided with a second magnetic strip with opposite magnetism to the first magnetic strip so as to keep the roller always attached to the disc.
Preferably, the output end of the driving motor is fixedly connected with a driving wheel which is coaxially arranged, the first supporting shaft is fixedly connected with a driven wheel which is coaxially arranged, and the driving wheel is connected with the driven wheel through a belt.
Preferably, a first through groove is formed in the side wall of the cylinder body, a second through groove is formed in the side wall of the shell, and the belt penetrates through the first through groove and the second through groove.
Preferably, the second chute is of a structure, and the connecting pipe is a hose.
Preferably, one end of the connecting pipe away from the suction pipe is connected with a vacuum pump.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
the application starts the driving motor to drive the driving gear to rotate, the driving gear rotates to drive the driven gear to rotate, the first connecting rod drives the disc to rotate, the disc is always attached to the roller, when the disc rotates to the notch to attach to the roller, the rotating block is driven to rotate, the limiting block is driven to separate from the ratchet, the limiting of the ratchet is canceled, meanwhile, the pawl is moved to the next adjacent tooth slot by one tooth slot on the ratchet, when the disc continues to rotate, the roller is attached to the periphery of the disc again, the rotating block is driven to reset, the pawl pushes the ratchet to rotate for a certain distance, the limiting block forms limiting on the ratchet again, the ratchet rotates to drive the bracket through the second connecting rod, thereby driving the test tube to rotate to the position to be extracted and stop, the driving motor drives the driving gear to rotate and simultaneously drives the driving wheel to rotate, the driven wheel and the first supporting shaft are driven to rotate through the transmission of the belt, the swing arm is driven to rotate around the axis of the first supporting shaft, the arc-shaped block is driven to swing back and forth through the movement of the first sliding column in the first sliding groove, the swing rod is driven to swing back and forth through the second supporting shaft and the second connecting shaft, the sliding block is driven to move along the path of the second sliding groove through the sliding of the second sliding column and the limiting groove, the suction pipe is driven to move into the test tube at the position to be extracted, the solvent in the test tube is extracted through the vacuum pump and is transmitted to the chromatograph, the sliding block continues to move along the second sliding groove after the extraction is completed to drive the suction pipe to move into the cleaning cylinder for cleaning, the disc is driven to rotate continuously by the driving motor, so that the chromatograph can detect various different solutions, the detection efficiency is higher, and the detection requirement of a large batch can be realized, simultaneously, a plurality of test tubes filled with solvent are placed on the support, after the solvent is extracted, an operator can conveniently take down and replace the test tubes, and the detection efficiency is further improved on the basis of not increasing the volume of equipment of the chromatograph.
Drawings
FIG. 1 shows a schematic overall structure provided in accordance with an embodiment of the present invention;
FIG. 2 illustrates another angular schematic view of the overall structure provided in accordance with an embodiment of the present invention;
FIG. 3 illustrates a cross-sectional view of an overall structure provided in accordance with an embodiment of the present invention;
FIG. 4 illustrates another angular cross-sectional view of the overall structure provided in accordance with an embodiment of the present invention;
FIG. 5 is a schematic diagram showing the structural cooperation of a driving mechanism and an extracting mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic view showing another angle of the driving mechanism and the extracting mechanism according to the embodiment of the invention;
FIG. 7 is a schematic diagram of a driving mechanism according to an embodiment of the present invention;
fig. 8 shows a schematic structural diagram of a driving wheel and a driven wheel according to an embodiment of the present invention;
FIG. 9 shows a schematic diagram of a transmission mechanism provided according to an embodiment of the present invention;
fig. 10 shows a schematic structural diagram of an extraction mechanism according to an embodiment of the present invention.
Legend description:
1. a base; 2. a cylinder; 3. a bracket; 4. placing the hole; 5. a test tube; 6. a driving motor; 7. a driving wheel; 8. a drive gear; 9. a driven gear; 10. a support table; 11. a first connecting rod; 12. a disc; 13. a notch; 14. a first connecting shaft; 15. a rotating block; 16. a roller; 17. a pawl; 18. a limiting block; 19. a ratchet wheel; 20. a second connecting rod; 21. a belt; 22. a first through groove; 23. a housing; 24. a second through slot; 25. a first support shaft; 26. driven wheel; 27. swing arms; 28. a second support shaft; 29. an arc-shaped block; 30. a first chute; 31. a first strut; 32. a bottom plate; 33. a second connecting shaft; 34. swing rod; 35. a limit groove; 36. a second chute; 37. a slide block; 38. a second strut; 39. a mobile station; 40. a suction pipe; 41. a connecting pipe; 42. and (5) cleaning the cylinder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, the present invention provides a technical solution:
the device used for the collecting and extracting system of the liquid chromatograph solvent comprises a base 1, wherein the upper end surface of the base 1 is fixedly connected with a cylinder body 2, the upper end surface of the cylinder body 2 is slidably connected with a bracket 3, a placing hole 4 is formed in the bracket 3, a test tube 5 is placed in the placing hole 4, a driving mechanism for driving the bracket 3 to intermittently rotate is arranged in the cylinder body 2, one side, far away from the cylinder body 2, of the upper end surface of the base 1 is fixedly connected with a shell 23, the outer side wall of the shell 23 is provided with an extracting mechanism matched with the test tube 5, and a transmission mechanism for connecting the driving mechanism and the extracting mechanism is arranged in the shell 23; the extraction mechanism comprises a bottom plate 32, a second connecting shaft 33, a swinging rod 34, a limit groove 35, a second sliding groove 36, a sliding block 37, a second sliding column 38, a movable table 39, a suction pipe 40, a connecting pipe 41 and a cleaning cylinder 42, wherein the bottom plate 32 is fixedly connected with the outer side wall of the shell 23, the second connecting shaft 33 is rotatably connected to the bottom plate 32, one end of the second connecting shaft 33 extends to the side, far away from the shell 23, of the bottom plate 32 and is fixedly connected with the swinging rod 34, the swing rod 34 is provided with the limit groove 35, the side surface wall of the bottom plate 32 is provided with the second sliding groove 36, the sliding block 37 is connected with the sliding block 37 in a sliding manner, one end of the sliding block 37 is fixedly connected with the second sliding column 38, the other end of the second sliding column 38 is fixedly connected with the movable table 39, the second sliding column 38 is embedded in the limit groove 35 and is connected with the connecting pipe 41 in a sliding manner, the upper end of the movable table 39 extends to the upper end of the movable table 40 and is connected with the connecting pipe 41 through a screwing block, and the cleaning cylinder 42 is fixedly connected with the bottom plate 32; the transmission mechanism comprises a first supporting shaft 25, a swing arm 27, a second supporting shaft 28, an arc-shaped block 29, a first sliding groove 30 and a first sliding column 31, wherein the first supporting shaft 25 is rotationally connected with the bottom surface wall inside the shell 23, the first supporting shaft 25 is driven by the driving mechanism, the swing arm 27 is fixedly connected with the upper end of the first supporting shaft 25, the second supporting shaft 28 is rotationally connected with the side surface wall inside the shell 23, the arc-shaped block 29 is fixedly connected with the second supporting shaft 28, the first sliding groove 30 is formed in the outer side wall of the arc-shaped block 29, the first sliding column 31 is fixedly connected with one end of the swing arm 27, far away from the first supporting shaft 25, the first sliding column 31 is in sliding connection with the first sliding groove 30, and one end of the second connecting shaft 33, far away from the swing rod 34, extends into the shell 23 and is coaxially and fixedly connected with the second supporting shaft 28;
the acquisition and extraction method of the acquisition and extraction system comprises the following steps:
s1: and (3) adding a solvent: placing test tubes 5 filled with solvent into the placing holes 4 in sequence;
s2: extraction solvent: the driving mechanism drives the bracket 3 to intermittently rotate, meanwhile, the driving mechanism drives the first supporting shaft 25 to rotate, the swing arm 27 is driven to rotate, the arc-shaped block 29 is driven to reciprocally swing by sliding the first sliding column 31 in the first sliding groove 30, the swing rod 34 is driven to reciprocally swing by driving the second supporting shaft 28 and the second connecting shaft 33, so that the sliding block 37 is driven to reciprocally slide in the second sliding groove 36, and the suction pipe 40 is driven to firstly enter the test tube 5 at the corresponding position to extract solvent;
s3: cleaning: after the extraction is finished, the cleaning solution moves into the cleaning barrel 42 along the path of the second chute 36 for cleaning;
s4: repeating the operation: the driving mechanism drives the bracket 3 to rotate, the next test tube 5 is moved to a designated position, and meanwhile, the driving mechanism drives the suction tube 40 to move into the test tube 5 through the transmission mechanism to perform the operation of extracting the solvent again.
The driving mechanism comprises a driving motor 6, a driving gear 8, a driven gear 9, a supporting table 10, a first connecting rod 11, a disc 12, a notch 13, a first connecting shaft 14, a rotating block 15, a roller 16, a pawl 17, a limiting block 18, a ratchet 19 and a second connecting rod 20, wherein the driving motor 6 is fixedly connected to the bottom surface wall inside the cylinder 2, the driving gear 8 is fixedly connected to the output end of the driving motor 6, the supporting table 10 is fixedly connected to the inner side wall of the cylinder 2, the first connecting rod 11 is rotatably connected to the supporting table 10, the lower end of the first connecting rod 11 extends to the lower portion of the supporting table 10 and is fixedly connected with the driven gear 9 which is coaxially arranged, the driving gear 8 is meshed with the driven gear 9, the upper end of the first connecting rod 11 extends to the upper portion of the supporting table 10 and is fixedly connected with the disc 12 which is coaxially arranged, the notch 13 is formed in the periphery of the disc 12, the supporting table 10 is rotatably connected to the rotating block 15 through the first connecting shaft 14, the roller 16 is rotatably connected to one side of the rotating block 15, the other side of the rotating block 15 is rotatably connected to the ratchet 20 which is coaxially arranged, the lower end surface of the supporting table 3 is fixedly connected to the second connecting rod 20 which is coaxially arranged, and the ratchet 19 is fixedly connected to the inner side of the ratchet 19 which is coaxially arranged near the disc 12, and is fixedly connected to the ratchet 19. A torsion spring is sleeved on the rotating shaft between the pawl 17 and the rotating block 15, and two ends of the torsion spring are fixedly connected with the rotating block 15 and the pawl 17 respectively so as to keep the open end of the pawl 17 to be always attached to the ratchet 19. The periphery of the disc 12 is provided with a first magnetic strip, and the periphery of the roller 16 is provided with a second magnetic strip which is opposite to the first magnetic strip in magnetism so as to keep the roller 16 always attached to the disc 12. The output end of the driving motor 6 is fixedly connected with a driving wheel 7 which is coaxially arranged, a driven wheel 26 which is coaxially arranged is fixedly connected on a first supporting shaft 25, and the driving wheel 7 is connected with the driven wheel 26 through a belt 21. The side wall of the cylinder body 2 is provided with a first through groove 22, the side wall of the shell 23 is provided with a second through groove 24, and the belt 21 penetrates through the first through groove 22 and the second through groove 24. The second chute 36 has a "" type structure, and the connection pipe 41 is a hose. The end of the connecting tube 41 remote from the suction tube 40 is connected to a vacuum pump.
Specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9 and fig. 10, the device adopted by the collecting and extracting system comprises a base 1, the upper end surface of the base 1 is fixedly connected with a cylinder body 2, the upper end surface of the cylinder body 2 is slidably connected with a bracket 3, a placing hole 4 is formed in the bracket 3, a test tube 5 is placed on the placing hole 4, a driving mechanism for driving the bracket 3 to intermittently rotate is arranged in the cylinder body 2, a shell 23 is fixedly connected to one side, far away from the cylinder body 2, of the upper end surface of the base 1, an extracting mechanism matched with the test tube 5 is arranged on the outer side wall of the shell 23, and a transmission mechanism for connecting the driving mechanism and the extracting mechanism is arranged in the shell 23; the extraction mechanism comprises a bottom plate 32, a second connecting shaft 33, a swinging rod 34, a limit groove 35, a second sliding groove 36, a sliding block 37, a second sliding column 38, a movable table 39, a suction pipe 40, a connecting pipe 41 and a cleaning cylinder 42, wherein the bottom plate 32 is fixedly connected with the outer side wall of the shell 23, the second connecting shaft 33 is rotatably connected to the bottom plate 32, one end of the second connecting shaft 33 extends to the side, far away from the shell 23, of the bottom plate 32 and is fixedly connected with the swinging rod 34, the swing rod 34 is provided with the limit groove 35, the side surface wall of the bottom plate 32 is provided with the second sliding groove 36, the sliding block 37 is connected with the sliding block 37 in a sliding manner, one end of the sliding block 37 is fixedly connected with the second sliding column 38, the other end of the second sliding column 38 is fixedly connected with the movable table 39, the second sliding column 38 is embedded in the limit groove 35 and is connected with the connecting pipe 41 in a sliding manner, the upper end of the movable table 39 extends to the upper end of the movable table 40 and is connected with the connecting pipe 41 through a screwing block, and the cleaning cylinder 42 is fixedly connected with the bottom plate 32; the transmission mechanism comprises a first supporting shaft 25, a swinging arm 27, a second supporting shaft 28, an arc-shaped block 29, a first sliding groove 30 and a first sliding column 31, wherein the first supporting shaft 25 is rotationally connected with the bottom surface wall inside the shell 23, the first supporting shaft 25 is driven by a driving mechanism, the upper end of the first supporting shaft 25 is fixedly connected with the swinging arm 27, the second supporting shaft 28 is rotationally connected with the side surface wall inside the shell 23, the arc-shaped block 29 is fixedly connected with the second supporting shaft 28, the first sliding groove 30 is arranged on the outer side wall of the arc-shaped block 29, the first sliding column 31 is fixedly connected with one end of the swinging arm 27 far away from the first supporting shaft 25, the first sliding column 31 is in sliding connection with the first sliding groove 30, one end of the second connecting shaft 33 far away from the swinging rod 34 extends into the shell 23 and is coaxially and fixedly connected with the second supporting shaft 28, firstly, a test tube 5 filled with solvent is sequentially placed into a placing hole 4, the bracket 3 is driven by the driving mechanism to rotate, thereby driving the test tube 5 to rotate to the position to be extracted and stop, driving the driving wheel 7 to rotate while driving the bracket 3 to rotate, driving the driven wheel 26 and the first supporting shaft 25 to rotate through the transmission of the belt 21, thereby driving the swing arm 27 to rotate around the axle center of the first supporting shaft 25, driving the arc-shaped block 29 to swing reciprocally through the movement of the first sliding column 31 in the first sliding groove 30, driving the swing rod 34 to swing reciprocally through the second supporting shaft 28 and the second connecting shaft 33, driving the sliding block 37 to move along the path of the second sliding groove 36 through the sliding of the second sliding column 38 and the limiting groove 35, driving the suction tube 40 to move into the test tube 5 to be extracted, extracting the solvent in the test tube 5 through the vacuum pump and transmitting to the chromatograph, continuously moving the suction tube 40 along the second sliding groove 36 after the extraction is completed to clean, then the driving motor 6 continuously drives the disc 12 to rotate, and the disc is reciprocated in such a way that the chromatograph can detect a plurality of different solutions, the detection efficiency is higher, and the detection requirement of a large batch can be realized;
the acquisition and extraction method of the acquisition and extraction system comprises the following steps:
s1: and (3) adding a solvent: placing test tubes 5 filled with solvent into the placing holes 4 in sequence;
s2: extraction solvent: the driving mechanism drives the bracket 3 to intermittently rotate, meanwhile, the driving mechanism drives the first supporting shaft 25 to rotate, the swing arm 27 is driven to rotate, the arc-shaped block 29 is driven to reciprocally swing by sliding the first sliding column 31 in the first sliding groove 30, the swing rod 34 is driven to reciprocally swing by driving the second supporting shaft 28 and the second connecting shaft 33, so that the sliding block 37 is driven to reciprocally slide in the second sliding groove 36, and the suction pipe 40 is driven to firstly enter the test tube 5 at the corresponding position to extract solvent;
s3: cleaning: after the extraction is finished, the cleaning solution moves into the cleaning barrel 42 along the path of the second chute 36 for cleaning;
s4: repeating the operation: the driving mechanism drives the bracket 3 to rotate, the next test tube 5 is moved to a designated position, and meanwhile, the driving mechanism drives the suction tube 40 to move into the test tube 5 through the transmission mechanism to perform the operation of extracting the solvent again.
Specifically, as shown in fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, the driving mechanism comprises a driving motor 6, a driving gear 8, a driven gear 9, a supporting table 10, a first connecting rod 11, a disc 12, a notch 13, a first connecting shaft 14, a rotating block 15, a roller 16, a pawl 17, a limiting block 18, a ratchet 19 and a second connecting rod 20, the driving motor 6 is fixedly connected to the bottom surface wall inside the cylinder 2, the driving gear 8 is fixedly connected to the output end of the driving motor 6, the supporting table 10 is fixedly connected to the inner side wall of the cylinder 2, the first connecting rod 11 is rotatably connected to the supporting table 10, the driven gear 9 is fixedly connected to the lower end of the first connecting rod 11 and is extended to the lower portion of the supporting table 10, the driving gear 8 is meshed with the driven gear 9, the upper end of the first connecting rod 11 is extended to the upper portion of the supporting table 10 and is fixedly connected to the disc 12 which is coaxially arranged, the notch 13 is formed in the periphery of the disc 12, the supporting table 10 is rotatably connected to the rotating block 15 through the first connecting shaft 14, one side of the rotating block 15 is rotatably connected to the rotating block 15, the rotating block 15 is adjacent to the roller 12, the driving gear 16 is fixedly connected to the other side of the rotating block 16, the ratchet 19 is coaxially connected to the ratchet 19 is fixedly connected to the lower end of the ratchet 19, and is fixedly connected to the inner side of the ratchet 19. A torsion spring is sleeved on the rotating shaft between the pawl 17 and the rotating block 15, and two ends of the torsion spring are fixedly connected with the rotating block 15 and the pawl 17 respectively so as to keep the open end of the pawl 17 to be always attached to the ratchet 19. The periphery of the disc 12 is provided with a first magnetic strip, and the periphery of the roller 16 is provided with a second magnetic strip which is opposite to the first magnetic strip in magnetism so as to keep the roller 16 always attached to the disc 12. The output end of the driving motor 6 is fixedly connected with a driving wheel 7 which is coaxially arranged, a driven wheel 26 which is coaxially arranged is fixedly connected on a first supporting shaft 25, and the driving wheel 7 is connected with the driven wheel 26 through a belt 21. The side wall of the barrel 2 is provided with a first through groove 22, the side wall of the shell 23 is provided with a second through groove 24, the belt 21 penetrates through the first through groove 22 and the second through groove 24, the driving motor 6 drives the driving gear 8 to rotate, the driving gear 8 rotates to drive the driven gear 9 to rotate, the first connecting rod 11 drives the disc 12 to rotate, when the disc 12 is always attached to the roller 16, the disc 12 rotates to the notch 13 to be attached to the roller 16, the rotating block 15 is driven to rotate, the limiting block 18 is driven to separate from the ratchet 19, the limit on the ratchet 19 is canceled, simultaneously, the pawl 17 is moved to the next adjacent tooth groove by one tooth groove on the ratchet 19, when the disc 12 continues to rotate, the roller 16 is attached to the periphery of the disc 12 again, the rotating block 15 is driven to reset, the pawl 17 pushes the ratchet 19 to rotate a certain distance, meanwhile, the limiting block 18 forms limit on the ratchet 19 again, the ratchet 19 rotates to drive the bracket 3 through the second connecting rod 20, thereby driving the test tube 5 to the position to be extracted and stop, the driving motor 6 drives the driving gear 8 to rotate, and drives the driving wheel 7 to rotate, and the automatic operation units are combined and optimized, and the automatic equipment is adjusted, so that a higher degree of equipment is formed.
Specifically, as shown in fig. 5, 6 and 10, the second chute 36 has a "" structure, and the connection pipe 41 is a hose. One end of the connecting pipe 41 far away from the suction pipe 40 is connected with a vacuum pump, the second chute 36 is of a '' structure and is matched with the positions of the test tube 5 and the cleaning cylinder 42, the overall stability of the device is improved, and meanwhile, the connecting pipe 41 is a hose, so that the suction pipe 40 can be conveniently moved.
In summary, the collecting and extracting system and method for liquid chromatograph solvent provided in this embodiment sequentially place the test tube 5 containing solvent into the placement hole 4, start the driving motor 6 to drive the driving gear 8 to rotate, drive the driving gear 8 to rotate to drive the driven gear 9 to rotate, and drive the disc 12 to rotate by the first connecting rod 11, because the disc 12 is always jointed with the roller 16, when the disc 12 rotates to the notch 13 to be jointed with the roller 16, drive the rotating block 15 to rotate, drive the limiting block 18 to disengage from the ratchet 19, cancel the limit on the ratchet 19, simultaneously move the pawl 17 from one tooth slot on the ratchet 19 to the next adjacent tooth slot, when the disc 12 continues to rotate, and the roller 16 is jointed with the periphery of the disc 12 again, drive the rotating block 15 to reset, so that the pawl 17 pushes the ratchet 19 to rotate a certain distance, and simultaneously the limiting block 18 forms limit on the ratchet 19 again, the ratchet wheel 19 rotates to drive the bracket 3 to rotate through the second connecting rod 20, so as to drive the test tube 5 to rotate to the position to be extracted and stop, the driving motor 6 drives the driving gear 8 to rotate and simultaneously drives the driving wheel 7 to rotate, the driven wheel 26 and the first supporting shaft 25 are driven to rotate through the transmission of the belt 21, the swing arm 27 is driven to rotate around the axle center of the first supporting shaft 25, the arc-shaped block 29 is driven to swing back and forth through the first sliding column 31 to move in the first sliding groove 30, the swing rod 34 is driven to swing back and forth through the second supporting shaft 28 and the second connecting shaft 33, the sliding block 37 is driven to move along the path of the second sliding groove 36 through the sliding of the second sliding column 38 and the limiting groove 35, so as to drive the suction tube 40 to move into the test tube 5 to the position to be extracted, the solvent in the test tube 5 is extracted through the vacuum pump and is transmitted to the chromatograph, after the extraction is finished, the sliding block 37 continuously moves along the second sliding groove 36 to drive the suction pipe 40 to move into the cleaning cylinder 42 for cleaning, and then the driving motor 6 continuously drives the disc 12 to rotate, so that the operation is repeated in a circulating way.
The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The collecting and extracting system for the liquid chromatograph solvent is characterized in that a device adopted by the collecting and extracting system comprises a base (1), wherein the upper end face of the base (1) is fixedly connected with a cylinder body (2), the upper end face of the cylinder body (2) is slidably connected with a support (3), a placing hole (4) is formed in the support (3), a test tube (5) is placed in the placing hole (4), a driving mechanism for driving the support (3) to intermittently rotate is arranged in the cylinder body (2), one side, far away from the cylinder body (2), of the upper end face of the base (1) is fixedly connected with a shell (23), the outer side wall of the shell (23) is provided with an extracting mechanism matched with the test tube (5), and a transmission mechanism for connecting the driving mechanism and the extracting mechanism is arranged in the shell (23);
the extraction mechanism comprises a bottom plate (32), a second connecting shaft (33), a swing rod (34), a limit groove (35), a second sliding groove (36), a sliding block (37), a second sliding column (38), a moving table (39), a suction pipe (40), a connecting pipe (41) and a cleaning cylinder (42), wherein the bottom plate (32) is fixedly connected with the outer side wall of the shell (23), the second connecting shaft (33) is rotationally connected on the bottom plate (32), one end of the second connecting shaft (33) extends to one side of the bottom plate (32) far away from the shell (23) and is fixedly connected with the swing rod (34), the swing rod (34) is provided with the limit groove (35), the side surface wall of the bottom plate (32) is provided with the second sliding groove (36), the sliding block (37) is connected with one end of the second sliding column (38) in a sliding manner, the other end of the second sliding column (38) is fixedly connected with the moving table (39), the second sliding column (38) is embedded in the limit groove (35) and is fixedly connected with the limiting groove (35) through the sliding table (40), the suction pipe (40) extends to the moving table (41), a cleaning cylinder (42) is fixedly connected to the bottom plate (32);
the transmission mechanism comprises a first supporting shaft (25), a swing arm (27), a second supporting shaft (28), an arc-shaped block (29), a first sliding groove (30) and a first sliding column (31), wherein the first supporting shaft (25) is rotationally connected with the bottom surface wall inside the shell (23), the first supporting shaft (25) is driven by the driving mechanism, the swing arm (27) is fixedly connected with the upper end of the first supporting shaft (25), the second supporting shaft (28) is rotationally connected with the side surface wall inside the shell (23), the arc-shaped block (29) is fixedly connected with the second supporting shaft (28), the first sliding groove (30) is formed in the outer side wall of the arc-shaped block (29), the first sliding column (31) is fixedly connected with one end of the swing arm (27), which is far away from the first supporting shaft (25), the first sliding column (31) is slidingly connected with the first sliding groove (30), and one end of the second connecting shaft (33) is far away from the swing rod (34) extends into the shell (23) and is coaxially and fixedly connected with the second supporting shaft (28);
the acquisition and extraction method of the acquisition and extraction system comprises the following steps:
s1: and (3) adding a solvent: sequentially placing test tubes (5) filled with solvent into the placing holes (4);
s2: extraction solvent: the driving mechanism drives the bracket (3) to intermittently rotate, meanwhile, the driving mechanism drives the first supporting shaft (25) to rotate, the swing arm (27) is driven to rotate, the arc-shaped block (29) is driven to reciprocally swing by sliding the first sliding column (31) in the first sliding groove (30), the swing rod (34) is driven to reciprocally swing by the transmission of the second supporting shaft (28) and the second connecting shaft (33), so that the sliding block (37) is driven to reciprocally slide in the second sliding groove (36), and the suction pipe (40) is driven to firstly enter the test tube (5) at the corresponding position to extract solvent;
s3: cleaning: after the extraction is finished, the waste water enters a cleaning cylinder (42) along the path of a second chute (36) for cleaning;
s4: repeating the operation: the driving mechanism drives the bracket (3) to rotate, the next test tube (5) is moved to a designated position, and meanwhile, the driving mechanism drives the suction tube (40) to move into the test tube (5) through the transmission mechanism to perform the operation of extracting the solvent again.
2. The collecting and extracting system for the liquid chromatograph solvent according to claim 1, wherein the driving mechanism comprises a driving motor (6), a driving gear (8), a driven gear (9), a supporting table (10), a first connecting rod (11), a disc (12), a notch (13), a first connecting shaft (14), a rotating block (15), a roller (16), a pawl (17), a limiting block (18), a ratchet wheel (19) and a second connecting rod (20), the driving motor (6) is fixedly connected to the bottom surface wall inside the cylinder (2), the driving gear (8) is fixedly connected to the output end of the driving motor (6) and coaxially arranged, the supporting table (10) is fixedly connected to the inner side wall of the cylinder (2), the first connecting rod (11) is rotationally connected to the supporting table (10), the lower end of the first connecting rod (11) extends to the lower part of the supporting table (10) and is fixedly connected with the coaxially arranged driven gear (9), the driving gear (8) is in meshed connection with the driven gear (9), the upper end of the first connecting rod (11) extends to the upper part of the supporting table (10) and is fixedly connected with the periphery of the disc (12), the supporting table (10) is rotationally connected with the rotating block (15) through the first connecting shaft (14), the rotating block (15) is rotationally connected with the roller (16) close to one side of the disc (12), the other side of the rotating block (15) is rotationally connected with the pawl (17), the lower end face of the support (3) is fixedly connected with the coaxially arranged second connecting rod (20), the lower end of the second connecting rod (20) extends to the inside of the cylinder (2) and is fixedly connected with the coaxially arranged ratchet (19), and the rotating block (15) is fixedly connected with a limiting block (18) matched with the ratchet (19) close to one side of the ratchet (19).
3. The collecting and extracting system for the liquid chromatograph solvent according to claim 2, wherein a torsion spring is sleeved on the rotating shaft between the pawl (17) and the rotating block (15), and two ends of the torsion spring are fixedly connected with the rotating block (15) and the pawl (17) respectively so as to keep the open end of the pawl (17) always attached to the ratchet wheel (19).
4. The collecting and extracting system for the liquid chromatograph solvent according to claim 2, wherein the first magnetic stripe is arranged on the periphery of the disc (12), and the second magnetic stripe with opposite magnetism to the first magnetic stripe is arranged on the periphery of the roller (16) so as to keep the roller (16) always attached to the disc (12).
5. The collecting and extracting system for the liquid chromatograph solvent according to claim 2, wherein the output end of the driving motor (6) is fixedly connected with a coaxially arranged driving wheel (7), the first supporting shaft (25) is fixedly connected with a coaxially arranged driven wheel (26), and the driving wheel (7) is connected with the driven wheel (26) through a belt (21).
6. The collecting and extracting system for the liquid chromatograph solvent according to claim 5, wherein a first through groove (22) is formed in the side wall of the barrel (2), a second through groove (24) is formed in the side wall of the shell (23), and the belt (21) penetrates through the first through groove (22) and the second through groove (24).
7. The extraction system for solvent collection of liquid chromatograph of claim 1, wherein the second chute (36) is of a "" type structure and the connecting tube (41) is a hose.
8. The extraction system for solvent collection of liquid chromatograph of claim 7, wherein a vacuum pump is connected to an end of the connecting tube (41) remote from the suction tube (40).
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| CN202211182741.7A CN115684444B (en) | 2022-09-27 | 2022-09-27 | Acquisition and extraction system and method for liquid chromatograph solvent |
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