CN202093003U - Ion chromatography sample introduction device - Google Patents
Ion chromatography sample introduction device Download PDFInfo
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- CN202093003U CN202093003U CN2011202290994U CN201120229099U CN202093003U CN 202093003 U CN202093003 U CN 202093003U CN 2011202290994 U CN2011202290994 U CN 2011202290994U CN 201120229099 U CN201120229099 U CN 201120229099U CN 202093003 U CN202093003 U CN 202093003U
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Abstract
The utility model provides an ion chromatography sample introduction device. A motion driving power drives a bracket and a sliding table to change the relative positions; a suction pin telescopic driving power is set on the sliding table and drives a suction pin to conduct telescopic movement on a horizontal plane; and a suction pin vertical driving power, the motion driving power, the suction pin telescopic driving power and a sampling pump are connected with a control system. In the ion chromatography sample introduction device, the shape of the bracket for placing sample bottles is not restricted, the placement of the sample bottles is not restricted by the circumference, the placement rules and other requirements; the motion driving power enables that the projection of the telescopic motion trail of the suction pin is in the same straight line with the center of the sample bottles; the suction pin telescopic driving power drives the suction pin to be positioned above the center of the sample bottle at the operating position; and the sample introduction device provided by the utility model has the advantages of low accuracy demand, easiness in processing, low manufacturing cost and small maintenance workload.
Description
Technical field
The utility model belongs to the sampling device of solution being cut the chromatography of ions stream, is the chromatography of ions sampling device of one kind of multiple test sample sample introductions specifically.
Background technology
The chromatography of ions sampling device that sample bottle on existing suction spindle and the carriage that adopts on the rotation slide unit on a plurality of circumference cooperates, can finish more testing sample solution sample introduction by the leacheate special-purpose bottle is set, the suction spindle of this sampling device and sample bottle drive to the slide unit rotation that drives power and the rotation of driven in rotation slide unit by the sample bottle of driven bracket rotation just that power realizes.Sample bottle drives power and the slide unit rotation drives essential accurate installation of power, the running of close coordination, the sample bottle that could guarantee the working position is positioned at suction spindle and rotatablely moves on the intersection point of track projection and the circumference of placing sample bottle, control and work in order for easy, sample bottle will meet fixing placement rule request on circumference, so it is accurately essential, the position of related features of strict control rotation slide unit rotation center, place the position of related features of each circumference of sample bottle, the tolerance on fit of the position of related features of sample bottle and sample bottle and its installation through hole, it deny side, the vertical projection of suction spindle very easily depart from sample bottle the center and can't imbibition, even cause that suction spindle is stressed to fracture.The essential machining precision that improves of departure, this has just increased difficulty of processing and manufacturing cost significantly, and has strengthened the workload of after-sales service.
The utility model content
The utility model will solve existing chromatography of ions sampling device accuracy requirement height, the processing difficulties that adopts the rotation slide unit, cause the big technical matters of manufacturing cost and maintenance capacity, provide a kind of accuracy requirement low, handling ease, the cheap and little chromatography of ions sampling device of maintenance capacity of manufacturing cost.
In order to solve the problems of the technologies described above, the technical scheme that the utility model is taked is: a kind of chromatography of ions sampling device, comprise the carriage of placing sample bottle, drive suction spindle and make the suction spindle vertical drive power of vertical movement, suction spindle is communicated with sampling pump, sample bottle, suction spindle are vertically placed, and motion drives the power drive carriage and the slide unit relative position changes; Suction spindle telescopic drive power is placed on the slide unit, drives suction spindle and make stretching motion in surface level; Suction spindle vertical drive power, motion drive power, suction spindle telescopic drive power and sampling pump connection control system.
The vertical sample bottle of placing and the parallel axes of suction spindle.Motion drives the power drive carriage and the slide unit relative position changes, it is that independent slide unit motion drives the motion of power drive slide unit that motion drives power, or independent movement of bracket drives the power drive movement of bracket, or the slide unit motion drives power and movement of bracket driving power drives slide unit and movement of bracket respectively, motion drives power and makes suction spindle stretching motion track and hold the just sample bottle of test sample, promptly be in the sample bottle of working position, the projection of center on surface level point-blank; Suction spindle telescopic drive power drive suction spindle is done straight reciprocating motion in surface level, make suction spindle be positioned at the top at the sample bottle center of working position; Suction spindle vertical drive power drive suction spindle stretches in the liquid of sample bottle of working position, by sampling pump the inner chamber of liquid via suction spindle hollow is transported in the detection stream of chromatography of ions, and suction spindle vertical drive power drive suction spindle rises then, breaks away from sample bottle.Under the control system control of prior art, suction spindle vertical drive power, motion drive power, suction spindle telescopic drive power and sampling pump coordination, finish auto injection.The utility model to the carriage shape without limits, and the sample bottle on the carriage is not subjected to circumference, puts the restriction that rule etc. requires, carriage carrying sample bottle quantity increases greatly; Drive power drive carriage and the variation of slide unit relative position by motion, make the projection on surface level of suction spindle stretching motion track and sample bottle center point-blank, and the top that is positioned the sample bottle center of working position by suction spindle telescopic drive power drive suction spindle, so it is wide in range that the position of related features of slide unit installation site tolerance, sample bottle and sample bottle and its installation through hole tolerance on fit require, low, the handling ease of sampling device accuracy requirement, low cost of manufacture, maintenance capacity is little.There are many prior aries can realize that motion drives power drive carriage or slide unit motion, changes carriage and slide unit relative position.Such as the gearing mesh in the rotation center rotating shaft of the gear on the motion driving power spindle and carriage or slide unit, driven bracket or slide unit rotation; Drive the tooth bar engagement that the gear on the power spindle is fixedlyed connected with carriage or slide unit, driven bracket or slide unit rectilinear motion such as motion; Drive power such as motion and drive the sprocket wheel rotation, drive the carriage that is fixedly connected on the chain or slide unit rectilinear motion or the like.
It is the slide unit driving power that rotatablely moves that motion drives power, and slide unit rotatablely moves and drives the power drive slide unit and rotate around the slide unit rotation center on horizontal plane, and carriage is fixed.Slide unit rotatablely moves and drives power slide unit and bracket locations relation are changed.The sample bottle center is at the slide unit rotational trajectory, and the suction spindle track that rotatablely moves just is on the vertical direction of both sides angle in the projection.Slide unit rotatablely moves and drives the projection of sample bottle center on surface level that power makes suction spindle stretching motion track and working position point-blank.
It is the carriage driving power that rotatablely moves that motion drives power, and carriage rotatablely moves and drives the power drive carriage and rotate around the carriage rotation center on horizontal plane, and slide unit is fixed.Carriage rotatablely moves and drives power and carriage is concerned with the slide unit position change.The sample bottle center turns over the projection on the vertical direction of suction spindle stretching motion track.Carriage rotatablely moves and drives the projection of sample bottle center on surface level that power makes suction spindle stretching motion track and working position point-blank.
It is that the slide unit rectilinear motion drives power that motion drives power, and the slide unit rectilinear motion drives power drive slide unit moving linearly on horizontal plane, and carriage is fixed.The slide unit rectilinear motion drives power changes slide unit and bracket locations relation.Suction spindle stretching motion track is along with slide unit moves and translation, and the sample bottle center is dropped in the vertical projection of suction spindle stretching motion track moving range.The slide unit rectilinear motion drives the projection of sample bottle center on surface level that power makes suction spindle stretching motion track and working position point-blank.
It is that the slide unit rectilinear motion drives power and the slide unit driving power that rotatablely moves that motion drives power, the slide unit rectilinear motion drives power drive slide unit moving linearly on horizontal plane, and slide unit rotatablely moves and drives the power drive slide unit and rotate around the slide unit rotation center on horizontal plane; Carriage is fixed, and is divided into two parts, and slide unit places between two parts carriage.Slide unit is moving linearly on horizontal plane, earlier to the sample bottle sample introduction on a part of carriage, then, and the slide unit rotation, slide unit is moving linearly on horizontal plane, again to the sample feeding on another part carriage.This structure reduces the sampling device volume, in the time of can also be to the sample bottle sample introduction on a part of carriage the sample bottle on another part carriage be changed.
It is that the carriage rectilinear motion drives power that motion drives power, and the carriage rectilinear motion drives power drive carriage moving linearly on horizontal plane, and slide unit is fixed.The carriage rectilinear motion drives power changes the position relation of carriage and slide unit.The sample bottle center is by the vertical projection of suction spindle stretching motion track.The carriage rectilinear motion drives the projection of sample bottle center on surface level that power makes suction spindle stretching motion track and working position point-blank.
It is that carriage rotatablely moves and drives power and the slide unit driving power that rotatablely moves that motion drives power, carriage rotatablely moves and drives the power drive carriage and rotate around the carriage rotation center on horizontal plane, and slide unit rotatablely moves and drives the power drive slide unit and rotate around the slide unit rotation center on horizontal plane.Carriage rotatablely moves and drives power and slide unit and rotatablely move and drive position that power makes carriage and slide unit and concern and change.The slide unit rotational trajectory is dropped at the sample bottle center, and the suction spindle track that rotatablely moves just is on the vertical direction of both sides angle in the projection.Carriage rotatablely moves and drives power and slide unit and rotatablely move and drive the projection of sample bottle center on surface level that power makes suction spindle stretching motion track and working position point-blank.Carriage and the rotation of slide unit reverse direction, the sample bottle center that can accelerate suction spindle and working position aligns speed, reduces the anglec of rotation of carriage and slide unit.
It is that the carriage rectilinear motion drives power and the slide unit rectilinear motion drives power that motion drives power, the carriage rectilinear motion drives power drive carriage moving linearly on horizontal plane, and the slide unit rectilinear motion drives power drive slide unit moving linearly on horizontal plane.The carriage rectilinear motion drives power and slide unit rectilinear motion driving power changes carriage and slide unit position relation.Suction spindle stretching motion track is along with slide unit moves and translation, and the sample bottle center is dropped in the vertical projection of suction spindle stretching motion track moving range.The carriage rectilinear motion drives power and slide unit rectilinear motion and drives the projection of sample bottle center on surface level that power makes suction spindle stretching motion track and working position point-blank.The carriage rectilinear motion drives power and slide unit rectilinear motion driving power is used, and carriage or slide unit move distance are little when being used alone motion driving power, are beneficial to the volume that reduces sampling device.
Motion drives the power drive carriage and the slide unit relative position changes, and makes the projection of sample bottle center on surface level of suction spindle stretching motion track and working position that multiple textural association form be arranged point-blank, is not limited to the said structure combination.
Sample bottle is placed in the through hole of the carriage of being made up of upper tray and lower tray.
Slide unit rotatablely moves and drives power is slide unit rotation drive stepping motor, and the output shaft of slide unit rotation drive stepping motor connects slide unit.Slide unit rotation drive stepping motor drives slide unit and rotates around the slide unit rotation center on horizontal plane.
The slide unit rectilinear motion drives power and is mounted in slide unit linear drives stepper motor on the base, and the output shaft of slide unit linear drives stepper motor connects slide unit and moves the driving screw mandrel, and slide unit moves and drives screw mandrel and cooperate with screw on the slide unit.Slide unit linear drives step motor drive slide unit moving linearly on horizontal plane.
Carriage rotatablely moves and drives power is the sample bottle drive stepping motor, and the output shaft of sample bottle drive stepping motor is connected with the carriage center.Sample bottle on the sample bottle drive stepping motor driven bracket is made circular motion around the carriage rotation center on horizontal plane.
The carriage rectilinear motion drives power and is mounted in carriage linear drives stepper motor on the base, and the output shaft of carriage linear drives stepper motor connects carriage and moves the driving screw mandrel, and carriage moves and drives screw mandrel and cooperate with screw on the carriage.Carriage linear drives step motor drive carriage moving linearly on horizontal plane.
Suction spindle vertical drive power is mounted in the suction spindle vertical drive stepper motor on the slide unit, and the output shaft of suction spindle vertical drive stepper motor connects suction spindle vertical drive screw mandrel, and suction spindle vertical drive screw mandrel cooperates with screw on the suction spindle telescopic drive electric machine support; Suction spindle telescopic drive power is mounted in the suction spindle telescopic drive stepper motor on the suction spindle telescopic drive electric machine support, the output shaft of suction spindle telescopic drive stepper motor connects suction spindle telescopic drive screw mandrel, suction spindle telescopic drive screw mandrel cooperates with screw on the suction spindle support, and suction spindle is installed on the suction spindle support.Suction spindle vertical drive step motor drive suction spindle telescopic drive electric machine support, suction spindle telescopic drive stepper motor and suction spindle are done vertical movement, suction spindle telescopic drive step motor drive suction spindle is done straight reciprocating motion in surface level, the reciprocating route of suction spindle forms suction spindle stretching motion track.
The sample bottle of placing on the carriage that holds testing sample solution equates with the sample bottle quantity that holds leacheate.Suction spindle alternately stretches into the sample bottle that holds testing sample solution and holds in the sample bottle of leacheate, and the suction spindle of being infected with testing sample solution cleans through leacheate, has avoided exerting an influence between the testing sample.
Sample bottle on the carriage holds testing sample solution; The leacheate special-purpose bottle that holds leacheate is centered close on the vertical projection of suction spindle stretching motion track.After testing sample solution sample introduction, check and analysis were finished, before next testing sample solution sample introduction, motion drove power and makes suction spindle stretching motion track and the projection of leacheate special-purpose bottle center on surface level point-blank; Suction spindle telescopic drive power drive suction spindle is positioned the top at leacheate special-purpose bottle center, and suction spindle vertical drive power drive suction spindle stretches into the leacheate neutralization and rises from leacheate, and the suction spindle medial and lateral are cleaned, and has avoided exerting an influence between the testing sample.Sample bottle on the carriage holds testing sample solution merely, has improved sampling device sample introduction quantity greatly, fully played sampling device efficiently, advantage flexibly.
The leacheate special-purpose bottle connects sampling pump by transfer valve, and transfer valve connects sampling pump, control system and leacheate hold-up vessel.
The sample bottle or the interior liquid level of leacheate special-purpose bottle that hold leacheate are higher than liquid level in the sample bottle that holds testing sample solution, what assurance held that the sample bottle of leacheate or drip washing special-purpose bottle can both be authentic and valid carries out the cleaning of outside surface with suction spindle, takes place with the situation of avoiding contaminated samples.After sample bottle held testing sample solution, film was sealed in its covering suitable for reading, sealed film and was used for dustproof and avoids sample oxidation by air, suction spindle to puncture sealing film stretching in the liquid of sample bottle.
The utility model has the advantages that: to the carriage shape of placing sample bottle without limits, and place sample bottle and be not subjected to circumference, put the restriction that rule etc. requires, carriage carrying sample bottle quantity increases greatly.Drive power drive carriage and the variation of slide unit relative position by motion, make the projection on surface level of suction spindle stretching motion track and sample bottle center point-blank, be positioned the top at the sample bottle center of working position by suction spindle telescopic drive power drive suction spindle, so it is wide in range that the position of related features of slide unit installation site tolerance, sample bottle and sample bottle and its installation through hole tolerance on fit require, low, the handling ease of sampling device accuracy requirement, manufacturing cost is cheap, and maintenance capacity is little.
Description of drawings
Fig. 1 is the structural representation of first embodiment of the utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of second embodiment of the utility model;
Fig. 4 is the structural representation of the 3rd embodiment of the utility model;
Fig. 5 is the vertical view of Fig. 4.
Embodiment
Accompanying drawings.For clear display, the part shell with slide unit 5 in the middle of the accompanying drawing removes.
Among first embodiment illustrated in figures 1 and 2, it is that carriage rotatablely moves and drives power and the slide unit driving power that rotatablely moves that motion drives power, carriage rotatablely moves and drives the power drive carriage and rotate around carriage rotation center 4 on horizontal plane, and slide unit rotatablely moves and drives power drive slide unit 5 and rotate around slide unit rotation center 6 on horizontal plane.The suction spindle vertical drive power of present embodiment sampling device, motion drive power, suction spindle telescopic drive power and sampling pump connection control system, the sampling pump of present embodiment is a peristaltic pump 18, under the control system control of prior art, the sampling device auto injection of present embodiment, the control system of not drawing among the figure.
Carriage comprises diameter identical upper tray 1 and lower tray 20, and the upper tray 1 of refining aluminum alloy material and lower tray 20 are by gib screw 3 interval and concentric being fixed as one.The through hole of placing sample bottle 2 is arranged on the circumference of three circles on the upper tray 1, and three circles are to be the concentric circles in the center of circle with carriage rotation center 4.Sample bottle 2 tops are cylindrical, and the bottom is taper.On the lower tray 20 with upper tray 1 on the through hole center of circle relative position small sircle hole is arranged, small sircle hole is used for the taper of sample bottle lower end location.The carriage of present embodiment rotatablely moves and drives power is the sample bottle drive stepping motor 19 that is fixedly mounted on the base 17, the output shaft of sample bottle drive stepping motor 19 is fixedlyed connected with the tapering coupling shaft is concentric, the center taper hole of tapering coupling shaft and upper tray 1 and lower tray 20 is connected, and the sample bottle 2 on sample bottle drive stepping motor 19 driven brackets is made circular motion around carriage rotation center 4 on horizontal plane.The slide unit of present embodiment rotatablely moves and drives power is the slide unit rotation drive stepping motor 16 that is fixed on the base 17, and the output shaft of slide unit rotation drive stepping motor 16 connects the lower end of slide unit 5.Slide unit rotation drive stepping motor 16 drives slide unit 5 and rotates around slide unit rotation center 6 on horizontal plane.The reflection infrared sensor that control system is installed on the base 17 of below, sample bottle 2 working positions is in order to control sample bottle drive stepping motor 19.Under control system control, when the shutter rotation of lower floor's pallet 20 working position sample bottle central lower settings shelters from infrared sensor, carriage is rotated in place, the infrared sensor output low level, and control system control sample bottle drive stepping motor 19 quits work; Control system control slide unit rotation drive stepping motor 16 anglecs of rotation.The suction spindle vertical drive power of present embodiment is mounted in the suction spindle vertical drive stepper motor 14 on the suction spindle vertical drive electric machine support 15 in the slide unit 5, its vertical output axle connects high precision suction spindle vertical drive screw mandrel 12, suction spindle vertical drive screw mandrel 12 cooperates with screw on the suction spindle telescopic drive electric machine support 11, does not show screw among the figure.The position of the limit switch of control system in order to 21 rises of control suction spindle and decline installed at screw mandrel 12 upper and lower positions; Also can the correlation infrared sensor of control system be installed at screw mandrel 12 upper and lower positions, when electric machine support 11 is being with suction spindle 21 to shelter from infrared sensor, the infrared sensor output low level, control system control suction spindle vertical drive stepper motor 14 stops, and makes suction spindle 21 reach the height and position of appointment.The output shaft of slide unit rotation drive stepping motor 16 is one group of parallel vertical line with the output shaft of suction spindle vertical drive stepper motor 14.Suction spindle telescopic drive power is mounted in the suction spindle telescopic drive stepper motor 10 on the suction spindle telescopic drive electric machine support 11, the output shaft of suction spindle telescopic drive stepper motor 10 connects high precision suction spindle telescopic drive screw mandrel 9, suction spindle telescopic drive screw mandrel 9 cooperates with screw on the suction spindle support 29, suction spindle 21 is installed on the suction spindle support 29, does not show screw among the figure.Sample bottle 2 belows are installed the reflection infrared sensor of control system and are done straight reciprocating motion in order to control suction spindle 21 in surface level, under control system control, do not arrive at suction spindle 21 working position sample bottle 2 centers above, infrared sensor does not have when blocking, infrared sensor output high level, 10 work of suction spindle telescopic drive stepper motor are adjusted the position of suction spindle 21, are positioned at the top at the sample bottle center of working position until suction spindle 21.Suction spindle vertical drive stepper motor 14 drives suction spindle telescopic drive electric machine support 11, suction spindle telescopic drive stepper motor 10 and suction spindle 21 and does vertical movement, and suction spindle 21 moves along suction spindle vertical movement track 22.Suction spindle telescopic drive stepper motor 10 drives suction spindle 21 and do straight reciprocating motion in surface level, and suction spindle 21 reciprocating routes form suction spindle stretching motion track.Above-mentioned sample bottle drive stepping motor 19 is each pulse step angle 0.9 degree, the three-phase four of power supply DC+24V/3A is clapped the system stepper motor, slide unit rotation drive stepping motor 16 and suction spindle vertical drive stepper motor 14 are each pulse step angle 0.9 degree, the three-phase four of power supply DC+24V/2A is clapped the system stepper motor, suction spindle telescopic drive stepper motor 10 is each pulse step angle 0.9 degree, and the three-phase four of power supply DC+24V/1A is clapped the system stepper motor.The material of the hollow needle suction spindle 21 of present embodiment is a stainless steel, the fixedly connected suction spindle support 29 in the upper end of suction spindle 21.The parallel axes of sample bottle 2 and suction spindle 21.Dust and other impurity that the slide unit shell of plastic material blocks chromatography of ions sampling device space outerpace enter slide unit inside.Inside from upper tray 1 outer rim, evenly place on circumference of first circle on the circumference of evenly placing 2, the three circles of 20 sample bottles on the circumference of 2, the second circles of 40 sample bottles and evenly place 16 sample bottles 2.In the projection of the surface level of three circumference, sample bottle 2 and slide unit 5, the included angle A of the center of two adjacent sample bottles 2 and carriage rotation center 4 lines equals 9 degree on the circumference of first circle, the included angle B of the center of two adjacent sample bottles 2 and carriage rotation center 4 lines equals 18 degree on the circumference of second circle, and the angle C of the center of two adjacent sample bottles 2 and carriage rotation center 4 lines equals 22.5 degree on the circumference of the 3rd circle; Suction spindle 21 is with slide unit 5 rotations, suction spindle the rotatablely move angle D of the intersection point of circumference of track and second circle and slide unit rotation center 6 lines of intersection point, the suction spindle of circumference of track and first circle that rotatablely moves equals 11.7 and spends, suction spindle the rotatablely move intersection point of circumference of track and the 3rd circle and the angle E of slide unit rotation center 6 lines of intersection point, the suction spindle of circumference of track and second circle that rotatablely move equals 17.1 degree, and suction spindle rotatablely moves here, and slide unit rotational trajectory 7 is consistent among track and the figure.The chromatography of ions sampling device that sample bottle on existing suction spindle and the carriage that adopts on the rotation slide unit on a plurality of circumference cooperates, its suction spindle and sample bottle drive to the slide unit rotation that drives power and the rotation of driven in rotation slide unit by the sample bottle of driven bracket rotation just that power realizes, the sample bottle that requirement is in the working position is at the rotatablely move intersection point place of track and circumference of suction spindle, because processing, technologic reasons such as installation, there are error in slide unit rotation center and bracket locations, and then make actual suction spindle the rotatablely move intersection point of track and circumference of the intersection point of track and circumference and theoretic suction spindle that rotatablely moves have deviation, therefore the vertical projection of suction spindle 21 very easily depart from the sample bottle center can't imbibition, even cause that suction spindle is stressed to fracture.So slide unit rotation center 6 is theoretic slide unit rotation centers in the present embodiment accompanying drawing, that is the slide unit rotation center when not having error, rotatablely move track and slide unit rotational trajectory 7 of same suction spindle also is rotatablely move track and slide unit rotational trajectory 7 of theoretic suction spindle.Finishing the testing sample that detects the after stain low concentration for the sample of avoiding high concentration detects, sample bottle that holds testing sample solution 2 on the same circumference and sample bottle 2 interphase distributions that hold leacheate, the sample bottle 2 that holds testing sample solution is connected transfer valve and peristaltic pump 18 with the sample bottle 2 that holds leacheate by pipeline 13, the transfer valve connection control system, transfer valve does not draw among the figure.The interior liquid level of sample bottle that holds leacheate is higher than liquid level in the sample bottle that holds testing sample solution, and the outside surface of suction spindle 21 is cleaned completely.After sample bottle 2 held testing sample solution, its suitable for reading being covered with was sealed film, sealed film and was used for dustproof and avoids sample oxidation by air, suction spindle 21 to puncture sealing film stretching in the testing sample solution of sample bottle 2.
The workflow of present embodiment is as follows: automatic sampling apparatus is in reference position, and suction spindle 21 is in the rise state.After the energized, the rotation of sample bottle drive stepping motor 19 driven brackets, it is the working position that the sample bottle of wanting test sample 2 on the carriage forwards place circumference and the theoretic suction spindle intersection of locus position that rotatablely moves to, slide unit rotation drive stepping motor 16 drives slide unit 5 rotations, the projection of sample bottle center on surface level of suction spindle stretching motion track and working position point-blank, suction spindle telescopic drive stepper motor 10 drives the top that suction spindles 21 are positioned to be positioned at the sample bottle center of working position.Suction spindle vertical drive stepper motor 14 drives suction spindle 21 and stretches in the sample bottle 2 that is in the working position, and peristaltic pump 18 is opened and drawn testing sample solution, and after sample introduction finished, peristaltic pump 18 was closed.Suction spindle vertical drive stepper motor 14 drives suction spindle 21 and rises, and thereupon, ion chromatograph begins testing sample is carried out check and analysis.After the check and analysis of testing sample are finished, the rotation of sample bottle drive stepping motor 19 driven brackets, on the carriage on the same circumference the adjacent sample bottle that holds leacheate 2 to forward place circumference and the theoretic suction spindle intersection of locus position that rotatablely moves to be the working position, suction spindle 21 stretches in this adjacent sample bottle 2, peristaltic pump 18 is opened and is drawn leacheate, in suction spindle 21, outside surface and whole sample introduction pipeline wash, after flushing finishes, peristaltic pump 18 is closed, suction spindle vertical drive stepper motor 14 rises suction spindle 21 once more, so mode operates, until whole detections of all samples on the circumference of first circle and analysis are finished, the chromatography of ions sampling device is back to the start position place again.Slide unit rotation drive stepping motor 16 drives slide unit 5 and turns clockwise, make on suction spindle stretching motion track and second circumference projection of sample bottle center on surface level that holds testing sample solution on the working position point-blank, after all samples on the circumference of second circle detected and analysis finishes, all samples that carries out on the circumference of the 3rd circle detected and analyzes.
Shown in Figure 3 is second embodiment of the present utility model, with the difference of Fig. 1 and first embodiment of Fig. 2 be that the sample bottle 2 of evenly arranging on the circumference of the 3rd circle on the carriage on the circumference of 2, three circles of 15 sample bottles all holds testing sample solution.A leacheate special-purpose bottle 24 that holds leacheate is positioned at projection on the vertical direction that carriage is outer, suction spindle rotatablely moves track both sides angle, vertically is placed on the base 17, does not have any interference with other parts.The interior liquid level of leacheate special-purpose bottle that holds leacheate is higher than liquid level in the sample bottle that holds testing sample solution.In the projection of the surface level of leacheate special-purpose bottle 24 and slide unit 5, the rotatablely move angle of intersection point and slide unit rotation center 6 lines of circumference of track and first circle of leacheate special-purpose bottle 24 centers and theoretic slide unit rotation center 6 lines and suction spindle equals 13.5 and spends, transfer valve 25 is arranged on the pipeline 13, leacheate special-purpose bottle 24 connects peristaltic pump 18 by transfer valve 25, peristaltic pump 18, transfer valve 25 and suction spindle 21 are by pipeline 13 series connection, transfer valve 25 connection control system and leacheate hold-up vessel, the leacheate hold-up vessel does not draw among the figure.During detection, suction spindle 21 replaces stretches in the sample bottle 2 and leacheate special-purpose bottle 24 on the carriage, suction spindle 21 draw the process of testing sample solutions with embodiment 1, slide unit rotation drive stepping motor 16 drives slide unit 5 rotations, suction spindle stretching motion track and the projection of leacheate special-purpose bottle center on surface level are point-blank, suction spindle telescopic drive stepper motor 10 drives the top that suction spindle 21 is positioned to be positioned at leacheate special-purpose bottle center, and suction spindle vertical drive stepper motor 14 drives suction spindle 21 and stretches in the leacheate or rise.After suction spindle 21 medial and lateral were cleaned, the ring waste in the leacheate special-purpose bottle 24 was drained through transfer valve 25, and then, transfer valve 25 switches, and peristaltic pump 18 pumps in the leacheate special-purpose bottle 24 new leacheate standby from the leacheate hold-up vessel.Sample bottle 2 on the carriage holds testing sample solution merely, has improved sampling device sample introduction quantity greatly, fully played sampling device efficiently, advantage flexibly.
Fig. 4 and shown in Figure 5 be the 3rd embodiment of the present utility model, with the difference of embodiment 1 be that carriage is fixed, it is that the slide unit rectilinear motion drives power and the slide unit driving power that rotatablely moves that motion drives power, the slide unit rectilinear motion drives power drive slide unit 5 moving linearly on horizontal plane, and slide unit rotatablely moves and drives power drive slide unit 5 and rotate around slide unit rotation center 6 on horizontal plane.Two identical carriages of the left and right sides are arranged, and the upper tray 1 and the lower tray 20 of carriage are rectangle, and area equates that carriage is fixedly mounted on the base 17 by tray rack 8.Place 11 row on each carriage, 4 row sample bottles 2.Slide unit 5 places between two parts slide unit.The right side of left side bracket, centre position, front and back are provided with a leacheate special-purpose bottle 24, and the left side of right brackets, centre position, front and back also are provided with a leacheate special-purpose bottle 24, and leacheate special-purpose bottle 24 is placed on the base 17.Transfer valve 25 is arranged on the pipeline 13, leacheate special-purpose bottle 24 connects peristaltic pump 18 by transfer valve 25, peristaltic pump 18, transfer valve 25 and suction spindle 21 are connected by pipeline 13, transfer valve 25 connection control system and leacheate hold-up vessel, and the leacheate hold-up vessel does not draw among the figure.It is the slide unit linear drives stepper motor 23 that is fixedly mounted on the base 17 that the slide unit rectilinear motion of present embodiment drives power, and slide unit rotatablely moves and drives power is the slide unit rotation drive stepping motor 16 that is fixed on the slide unit rotation drive stepping motor support 28.The output shaft of slide unit linear drives stepper motor 23 moves driving screw mandrel 26 with slide unit fixedlys connected, slide unit moves driving screw mandrel 26 and cooperates with the screw that slide unit rotates on the drive stepping motor support 28, do not show screw among the figure, slide unit shifting sledge 27 is fixed on the base 17, slide unit linear drives stepper motor 23 drives slide unit 5 along slide unit shifting sledge 27 front and back rectilinear motions, and slide unit rotation drive stepping motor 16 drives slide unit 5 and rotates around slide unit rotation center 6 on horizontal plane.Slide unit linear drives stepper motor 23 is each pulse step angle 0.9 degree, and the three-phase four of power supply DC+24V/3A is clapped system stepper motor, connection control system.Slide unit 5 moving linearly on horizontal plane, earlier to 2 sample introductions of the sample bottle on the left side bracket, then, and slide unit 5 Rotate 180 degree, slide unit 5 moving linearly on horizontal plane is again to the sample feeding on the right brackets, referring to the slide unit 5 of dotted line among Fig. 5.This structure reduces the sampling device volume, can also change the sample bottle 2 on another part carriage that does not have sample introduction in 2 sample introductions of the sample bottle on a part of carriage.Present embodiment rectangular bracket handling ease, sample bottle 2 on carriage with parallel neatly the arranging in rectangle limit, it is convenient to install solution to be measured additional.
Claims (10)
1. chromatography of ions sampling device, comprise the carriage of placing sample bottle (2), drive suction spindle (21) and make the suction spindle vertical drive power of vertical movement, suction spindle (21) is communicated with sampling pump, sample bottle (2), the vertical placement of suction spindle (21) is characterized in that motion drives the power drive carriage and slide unit (5) relative position changes; Suction spindle telescopic drive power is placed on the slide unit (5), drives suction spindle (21) and make stretching motion in surface level; Suction spindle vertical drive power, motion drive power, suction spindle telescopic drive power and sampling pump connection control system.
2. chromatography of ions sampling device according to claim 1, it is characterized in that it is the slide unit driving power that rotatablely moves that motion drives power, slide unit rotatablely moves and drives power drive slide unit (5) and rotate around slide unit rotation center (6) on horizontal plane, and carriage is fixed.
3. chromatography of ions sampling device according to claim 1, it is characterized in that it is the carriage driving power that rotatablely moves that motion drives power, carriage rotatablely moves and drives the power drive carriage and rotate around carriage rotation center (4) on horizontal plane, and slide unit (5) is fixing.
4. chromatography of ions sampling device according to claim 1 is characterized in that it is that the slide unit rectilinear motion drives power that motion drives power, and the slide unit rectilinear motion drives power drive slide unit (5) moving linearly on horizontal plane, and carriage is fixed.
5. chromatography of ions sampling device according to claim 1, it is characterized in that it is that the slide unit rectilinear motion drives power and the slide unit driving power that rotatablely moves that motion drives power, the slide unit rectilinear motion drives power drive slide unit (5) moving linearly on horizontal plane, and slide unit rotatablely moves and drives power drive slide unit (5) and rotate around slide unit rotation center (6) on horizontal plane; Carriage is fixed, and is divided into two parts, and slide unit (5) places between two parts carriage.
6. chromatography of ions sampling device according to claim 1 is characterized in that it is that the carriage rectilinear motion drives power that motion drives power, and the carriage rectilinear motion drives power drive carriage moving linearly on horizontal plane, and slide unit (5) is fixing.
7. chromatography of ions sampling device according to claim 1, it is characterized in that it is that carriage rotatablely moves and drives power and the slide unit driving power that rotatablely moves that motion drives power, carriage rotatablely moves and drives the power drive carriage and rotate around carriage rotation center (4) on horizontal plane, and slide unit rotatablely moves and drives power drive slide unit (5) and rotate around slide unit rotation center (6) on horizontal plane.
8. chromatography of ions sampling device according to claim 1, it is characterized in that it is that the carriage rectilinear motion drives power and the slide unit rectilinear motion drives power that motion drives power, the carriage rectilinear motion drives power drive carriage moving linearly on horizontal plane, and the slide unit rectilinear motion drives power drive slide unit (5) moving linearly on horizontal plane.
9. according to claim 4 or 5 or 8 described chromatography of ions sampling devices, it is characterized in that slide unit rectilinear motion driving power is mounted in the slide unit linear drives stepper motor (23) on the base (17), the output shaft of slide unit linear drives stepper motor (23) connects slide unit and moves and drive screw mandrel (26), and slide unit moves and drives screw mandrel (26) and cooperate with screw on the slide unit (5).
10. chromatography of ions sampling device according to claim 1, it is characterized in that suction spindle vertical drive power is mounted in the suction spindle vertical drive stepper motor (14) on the slide unit (5), the output shaft of suction spindle vertical drive stepper motor (14) connects suction spindle vertical drive screw mandrel (12), and suction spindle vertical drive screw mandrel (12) cooperates with screw on the suction spindle telescopic drive electric machine support (11); Suction spindle telescopic drive power is mounted in the suction spindle telescopic drive stepper motor (10) on the suction spindle telescopic drive electric machine support (11), the output shaft of suction spindle telescopic drive stepper motor (10) connects suction spindle telescopic drive screw mandrel (9), suction spindle telescopic drive screw mandrel (9) cooperates with screw on the suction spindle support (29), and suction spindle (21) is installed on the suction spindle support (29).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202290994U CN202093003U (en) | 2011-06-21 | 2011-06-21 | Ion chromatography sample introduction device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202290994U CN202093003U (en) | 2011-06-21 | 2011-06-21 | Ion chromatography sample introduction device |
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| Publication Number | Publication Date |
|---|---|
| CN202093003U true CN202093003U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202290994U Expired - Fee Related CN202093003U (en) | 2011-06-21 | 2011-06-21 | Ion chromatography sample introduction device |
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| CN104555280A (en) * | 2014-12-31 | 2015-04-29 | 江苏安德信超导加速器科技有限公司 | Automatic sample changing device in radiation environment |
| CN105035724A (en) * | 2015-08-10 | 2015-11-11 | 苏州听毅华自动化设备有限公司 | Sampling device |
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| CN109856296A (en) * | 2019-02-25 | 2019-06-07 | 浙江省食品药品检验研究院 | A kind of gas chromatograph that can voluntarily select detection sample |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104555280A (en) * | 2014-12-31 | 2015-04-29 | 江苏安德信超导加速器科技有限公司 | Automatic sample changing device in radiation environment |
| CN105035724A (en) * | 2015-08-10 | 2015-11-11 | 苏州听毅华自动化设备有限公司 | Sampling device |
| CN107321399A (en) * | 2017-07-14 | 2017-11-07 | 西北工业大学 | The High Precision Automatic sampling system of multicomponent towards centrifugal type microfludic chip optional position |
| CN109307781A (en) * | 2018-12-13 | 2019-02-05 | 中国科学院西北高原生物研究所 | Adjustable full-automatic sample injector, the elemental analyser for varying position |
| CN109307781B (en) * | 2018-12-13 | 2023-11-14 | 中国科学院西北高原生物研究所 | Full-automatic sample injector with changeable sample position and element analyzer |
| CN109856296A (en) * | 2019-02-25 | 2019-06-07 | 浙江省食品药品检验研究院 | A kind of gas chromatograph that can voluntarily select detection sample |
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