CN106596810B - Use method of oil sample chromatographic analysis quantitative sampling device with dust plug - Google Patents
Use method of oil sample chromatographic analysis quantitative sampling device with dust plug Download PDFInfo
- Publication number
- CN106596810B CN106596810B CN201710065211.7A CN201710065211A CN106596810B CN 106596810 B CN106596810 B CN 106596810B CN 201710065211 A CN201710065211 A CN 201710065211A CN 106596810 B CN106596810 B CN 106596810B
- Authority
- CN
- China
- Prior art keywords
- pressing
- clamping
- motor
- longitudinal
- movable block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/18—Injection using a septum or microsyringe
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/18—Injection using a septum or microsyringe
- G01N2030/185—Injection using a septum or microsyringe specially adapted to seal the inlet
Abstract
The invention relates to a use method of a quantitative sample injection device with a dustproof plug for oil sample chromatographic analysis, which comprises a support rod on a support, a movable block, a pressing component and a sample injection port plugging component on the support rod, wherein the movable block is provided with a longitudinal transmission device, a mounting seat for mounting a syringe and a clamping device for fixing the syringe, the longitudinal transmission device comprises a longitudinal motor and a transmission gear set, the mounting seat comprises a U-shaped opening and a mounting cavity, the clamping device comprises a fixed seat, a clamping motor, a clamping lead screw, a clamping slide block, a connecting rod and a clamping claw, the pressing component comprises a pressing motor, a pressing lead screw, a guide shaft, a transmission gear set and a pressing slide block which are connected with the movable block, and the sample injection port plugging component comprises a dustproof electromagnetic coil with an inner iron core, a support arm and a dustproof plug. The invention is safe and convenient, has accurate sample introduction, effectively solves the problems of sample waste, experimental data deviation and low efficiency, can be applied to sampling of oil samples, and has wide application range and easy popularization.
Description
Technical Field
The invention relates to a use method of a quantitative sample introduction device with a dust plug for oil sample chromatographic analysis.
Background
In the daily operation process of the power transformer, the insulating oil can generate gas dissolved in the insulating oil under the action of a strong electric field, an electromagnetic environment and various external environments, and the insulating oil chromatographic analysis method is a diagnostic technology for evaluating the state of oil-filled equipment. The device provides effective insulation supervision for the electrical equipment, and ensures the safe and stable operation of the electrical equipment. The method specifically comprises the steps of determining the component content of dissolved gas in insulating oil by using a gas chromatography, and determining whether latent faults such as overheating and discharging exist in oil-filled power equipment in operation or not by a power supply enterprise according to a measurement result so as to ensure safe and effective operation of a power grid, and the method is also a necessary means for oil-filled electrical equipment manufacturers to carry out factory inspection on the equipment.
The syringe currently in use is of a conventional glass syringe for medical use. In the test, a sample needs to be injected into a gasification chamber of a chromatograph, gasified, separated and subjected to chromatographic analysis. The speed requirement is high during sample injection, if the injection speed is low, the vaporization process of the sample is lengthened, the initial spectral band of the sample entering the chromatographic column is widened, and the analysis is influenced; in addition, in the existing manual sample injection, the fingers are easy to transfer heat to the needle cylinder, so that the temperature of the sample is influenced, and the analysis result is further influenced; meanwhile, a sample inlet of the chromatograph has certain pressure, about 0.2Mpa, the injector piston is easy to eject, so that the test operation fails, accurate quantification cannot be performed according to requirements, and in severe cases, if an operator carelessly pushes the injector piston by high-pressure gas, the piston is flushed out to injure people, and personal injury is caused.
Therefore, a sample introduction device which is safe and convenient to introduce samples and accurate in sample introduction is urgently needed at present, so that sample waste is avoided, and the accuracy of test data and the sample introduction efficiency are improved.
The invention discloses an insulating oil chromatographic analysis sample injection device, which consists of an injector, a fixed clamp, a quantitative clamping piece and an anti-slip ring. The invention can only solve the problems of manual quantitative sampling and prevention of the ejection of the syringe piston during sampling, cannot solve the problems of automatic sampling and automatic ejection after sampling, and simultaneously has the problems of loosening of the quantitative clamping rod after long use, error generation of sampling volume and inaccurate measuring result.
Chinese patent publication No. CN101639420A discloses a quantitative sampling device for liquid or fluid, which comprises a mounting frame, an injector, a sampling valve and a displacement control mechanism, wherein the injector is fixed on the mounting frame, and the displacement control mechanism acts on a piston of the injector to control the movement of the piston. The invention can automatically sample and sample, but can not be conveniently fixed with the instrument, and can only push the piston, and can not automatically insert or extract the instruments such as the injector, the chromatograph and the like, and the intelligent degree is low.
Disclosure of Invention
The invention provides a use method of an oil sample chromatographic analysis quantitative sampling device with a dust plug, aiming at the technical problems to be solved by the background technology, the oil sample chromatographic analysis quantitative sampling device with the dust plug is safe and convenient, accurate in sampling, capable of effectively solving the problems of sample waste and low experimental data deviation and efficiency, simultaneously applicable to sampling of oil samples, wide in application range and easy to popularize.
The technical scheme adopted by the invention for solving the problems is as follows: a method for using the quantitative sample introduction device with a dust plug for oil sample chromatographic analysis comprises a support with a T-shaped cross section and comprising a top plate, a side plate and a base, wherein the inner side surface of the side plate is provided with a vertical T-shaped chute and a vertical rack, the base is of a Y-shaped structure, the base is provided with an adsorption device, the adsorption device is a base electromagnetic coil with an armature arranged in the base or (and) a vacuum chuck, a support rod consisting of a cylindrical non-magnetic conductive material is longitudinally arranged between the top plate and the base,
the support rod is sleeved with a movable block and a hollow pressing screw rod in a sliding mode.
A sliding block matched with the sliding groove is arranged on one side of the movable block facing the side plate, the movable block can longitudinally slide in the sliding groove under the guidance of the sliding block, a longitudinal transmission device is arranged on the movable block and comprises a longitudinal motor which is longitudinally arranged, a longitudinal turbine gear is arranged on an output shaft of the longitudinal motor, a longitudinal gear is fixedly arranged on the movable block, the longitudinal gear is respectively meshed and matched with the longitudinal turbine gear and a longitudinal rack to push the movable block to longitudinally move on the supporting rod, an installation seat is arranged on the movable block, a longitudinally through U-shaped opening is arranged on the installation seat, a U-shaped installation cavity is arranged in the U-shaped opening, a support lug of the injector is clamped in the installation cavity of the U-shaped opening, a clamping device is arranged on the movable block and is arranged below the installation seat, the clamping device comprises a fixed seat arranged on a movable block, a horizontal dovetail groove which takes a U-shaped opening central axis as a central symmetry axis is arranged on the fixed seat, symmetrical clamping jaws are arranged in the dovetail groove in a sliding manner, a clamping motor is arranged on one side of the fixed seat, a clamping lead screw which penetrates through the fixed seat is arranged on an output shaft of the clamping motor, a clamping slide block is connected on the clamping lead screw in a rolling manner through threads, connecting rods are arranged between the clamping slide block and the clamping jaws, each side of each side is provided with two parallel groups of connecting rods, a rubber layer is arranged in a clamping face of the clamping jaw, a pressure sensor is arranged on the inner side of at least one clamping face of the clamping jaw, when an injector lug is clamped and arranged in an installation cavity, the clamping device is used for clamping and fixing a cylinder body of the injector, a proximity switch is arranged on the movable block, the working face direction of the proximity switch is the same as the opening direction of the U-shaped opening and points to the central axis of the U-shaped opening, a pressing motor is arranged on the upper side of the movable block, and a pressing turbine gear is arranged on an output shaft of the pressing motor.
The pushing screw rod is located on the upper side of the movable block and is connected with the movable block in a rotating mode, a screw rod gear is formed on the pushing screw rod, and the screw rod gear is meshed with the pushing turbine gear in a matched mode.
The movable block upside is provided with the guiding axle parallel with the lead screw that pushes down, guiding axle both ends are provided with spacing switch and lower limit switch on adjustable, the end of pushing down lead screw and guiding axle is provided with the end plate, the end plate rotates with the lead screw that pushes down to be connected, end plate and guiding axle fixed connection, the side of going up of end plate is provided with the end plate switch, the trigger part of end plate switch can touch mutually with the roof, and it is provided with down to slide on pushing down lead screw and guiding axle and pushes down the slider, it moves between last limit switch and lower limit switch to push down the slider, push down slider and push down lead screw thread roll connection, push down slider and guiding axle closely sliding connection.
Be provided with horizontal depression bar on the push down slider, be provided with the controller on the depression bar, the depression bar is provided with micro-gap switch towards clamping device one side, micro-gap switch's trigger part, U type open-ended the central axis and the clamping face the central axis of gripper coincide in longitudinal direction still be provided with the push down switch that can vertically adjust on the bracing piece, push down switch is in between movable block and the base, push down switch's trigger part can touch with the movable block mutually, and when push down switch was triggered by the movable block, the syringe needle that the syringe was established at the installation intracavity to the card inserted in the introduction port of chromatograph.
The support rod is provided with a guide groove below the press switch, the guide groove is arranged in a spiral quarter circle, an upper magnet ring and a lower magnet ring which are opposite in polarity direction are fixed on the support rod, the support rod is sleeved with a dustproof electromagnetic coil capable of sliding up and down, the dustproof electromagnetic coil is fixed on the outer side of an inner iron core with an I-shaped cross section, the inner iron core is sleeved on the support rod between the upper magnet ring and the lower magnet ring in a sliding manner, the dustproof electromagnetic coil is a bidirectional electromagnetic coil, a support arm is arranged on the dustproof electromagnetic coil, a conical dustproof plug is arranged on one side, facing the base, of the support arm, a guide block clamped in the guide groove is arranged on the inner surface of the inner iron core, the guide block slides along the guide groove in the up-and-down movement process of the inner iron core, and when the guide block is at the lower end position of the guide groove, the, the downside of dustproof plug laminates with the introduction port of chromatograph mutually, and interior iron core downside is inhaled the laminating with magnet ring looks magnetism down, when the guide block was in guide slot upper end position, dustproof plug rotates 90 degrees in the horizontal plane direction, and interior iron core upper flank is inhaled the laminating with last magnet ring looks magnetism.
The base electromagnetic coil, the proximity switch, the clamping motor, the pressure sensor, the pressing motor, the micro switch, the upper limit switch, the lower limit switch, the end plate switch, the longitudinal motor, the pressing switch and the dustproof electromagnetic coil are respectively electrically connected with the controller.
The quantitative sample introduction device with the dust plug for oil sample chromatographic analysis is used according to the following method:
step 1: mounting and fixing of sample introduction device
Place near the introduction port of chromatograph with sampling device, adjust sampling device's position makes the inlet coincidence of dust plug and chromatograph to closely laminate, open adsorption equipment afterwards, control base solenoid circular telegram promptly through the controller, base solenoid produces magnetic field force, adsorbs on the shell of chromatograph, if base solenoid can't adsorb on the shell of chromatograph, then adopts vacuum chuck and chromatograph shell to adsorb mutually, reaches fixed sampling device's purpose.
Step 2: initial ready state
After the sample feeding device is installed and fixed and powered on, the sample feeding device is in a standby state, namely a clamping claw of the clamping device is in an open state, the pressing slide block is contacted with the trigger part of the upper limit switch, the trigger part of the end plate switch is contacted with the top plate, and the inner iron core is attached to the lower magnet ring in a magnetic attraction mode.
And step 3: placement and fixation of syringes
After the oil sample injector extracts an oil sample, a lug of the injector is hung in the installation cavity, a barrel body of the injector passes through the U-shaped opening and hangs downwards, after the proximity switch detects the barrel body of the injector, the controller controls the clamping device to clamp the barrel body, namely, the clamping motor drives the clamping screw to rotate forwards, the clamping screw drives the clamping slide block to move inwards, the connecting rod drives the clamping claw to draw in towards the middle, the pressure sensor on the inner side of the clamping claw detects the pressure between the clamping claw and the barrel body of the injector in real time, when the clamping pressure reaches a certain value, the controller controls the clamping motor to stop working, and therefore, the injector is placed and fixed.
And 4, step 4: stopping of syringe injection piston
After the injector is fixed, namely after the clamping motor stops working, the controller controls the downward pressing motor to rotate in the forward direction, the downward pressing turbine gear drives the lead screw gear on the downward pressing lead screw to rotate in the forward direction, the downward pressing slide block slowly and stably moves downwards along with the forward rotation of the downward pressing lead screw, and after the trigger component of the microswitch on the pressing rod is triggered by the injection piston of the injector, the controller controls the downward pressing motor to stop working;
and 5: retraction of dust plugs
After the push-down motor stops working, the controller controls the dustproof electromagnetic coil to be electrified with forward current for 3-5 seconds and then to be disconnected with the current, when the forward current is switched on, the dustproof electromagnetic coil generates forward magnetic field force, the magnetic field force is repelled by the lower magnet ring and attracted by the upper magnet ring, so that the dustproof electromagnetic coil drives the inner iron core to move upwards, finally the inner iron core and the upper magnet ring are magnetically attracted and attached, meanwhile, due to the guide of the guide groove to the guide block, the inner iron core rotates 90 degrees in the horizontal plane direction, the support arm rotates 90 degrees, and the dustproof plug is separated from the sample inlet and avoids the advancing route of the syringe needle.
Step 6: syringe insertion
After the dustproof electromagnetic coil is started by the controller, the controller then controls the longitudinal motor to rotate in the forward direction, the movable block stably moves downwards along with forward transmission of the longitudinal turbine gear and the longitudinal gear on the longitudinal rack, after the movable block triggers the trigger part of the press-down switch, the controller controls the longitudinal motor to stop working, and at the moment, the plug of the injector is inserted into the sample inlet of the chromatograph.
And 7: oil sample introduction
After the longitudinal motor stops working, the controller controls the pressing motor to rotate forwards again, the pressing slide block moves downwards to press the injection piston of the injector to move downwards, an oil sample in the injector is injected into a sample inlet of the chromatograph, and after the pressing slide block triggers a triggering part of the lower limit switch, the controller controls the pressing motor to stop working.
And 8: syringe pull-out
After the lower limit switch is triggered by the pressing sliding block, the controller controls the longitudinal motor to rotate reversely, along with the reverse transmission of the longitudinal turbine gear and the longitudinal gear on the longitudinal rack, the movable block moves stably upwards to pull out the needle head of the injector from the sample inlet of the chromatograph, after the trigger part of the end plate switch is triggered by the top plate, the controller controls the longitudinal motor to stop working, and at the moment, the plug of the injector is pulled out from the sample inlet of the chromatograph.
And step 9: release of the Syringe
When the longitudinal motor stops working, the controller controls the downward pressing motor to rotate reversely, the downward pressing turbine gear drives the screw rod gear on the downward pressing screw rod to rotate reversely, the downward pressing slide block moves upwards stably along with the reverse rotation of the downward pressing screw rod, after the downward pressing slide block triggers the triggering part of the upper limit switch, the controller controls the downward pressing motor to stop working, the controller controls the clamping motor in the clamping device to rotate reversely while the downward pressing motor rotates reversely, the clamping jaws loosen the clamped syringe barrel body, after the clamping jaws expand to the standby initial position, the controller controls the clamping motor to stop working, and an operator can take the syringe down at any time.
Step 10: sealing of dust plug
After the end plate switch trigger part is triggered by the roof, the controller controls the dustproof electromagnetic coil to be switched off after 3-5 seconds of reverse current is introduced, when the reverse current is switched on, the dustproof electromagnetic coil generates reverse magnetic field force, the magnetic field force is attracted by the lower magnet ring and is repelled by the upper magnet ring, the dustproof electromagnetic coil drives the inner iron core to move downwards, finally the inner iron core is magnetically attracted and attached to the lower magnet ring, the guide groove guides the guide block, the support arm rotates for 90 degrees, the dustproof plug is finally attached to and sealed with the sample inlet of the chromatograph, the sample introduction device finishes working, and next sample introduction is waited.
Preferably, the pressing motor and the clamping motor are servo motors.
The invention has the following beneficial effects:
1. the compression bar device has the function of limiting the injector piston, and effectively prevents the piston from being ejected out by high pressure in the sample inlet of the chromatograph;
2. the clamping and fixing device can play a good longitudinal positioning role in the insertion and extraction of the injector, and the deviation between the needle head and the sample inlet is avoided;
3. the whole device can be conveniently and tightly fixed with a chromatograph, and the device is prevented from shaking when in use to influence the sample introduction of a detected sample;
4. when the device is used, the sampling amount is accurately determined, the deviation of experimental data is reduced, the measurement accuracy is improved, and the waste is reduced;
5. the injector is suitable for injectors with various specifications, and the utilization rate of the device is improved;
6. the injector is fast and accurate in the process of inserting and pulling out, the sample injection time is shortened, and the efficiency is improved;
7. the device is not only suitable for quantitative sample injection detection of a chromatograph, but also suitable for quantitative sampling detection;
8. this device can take out the back at the syringe, seals dustproof to the introduction port of chromatograph, places the dust that drops, influences the measuring result.
Drawings
The invention will be further explained with reference to the drawings and the embodiments;
FIG. 1 is a schematic structural cross-sectional view of a preferred embodiment of the present invention;
FIG. 2 is a front elevational view of the preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view A of the preferred embodiment of the present invention;
FIG. 4 is a cross-sectional view B of the preferred embodiment of the present invention;
fig. 5 is a cross-sectional view C of the preferred embodiment of the present invention.
In the drawings:
100. a bracket 110, a top plate 120, a side plate 121, a longitudinal rack 130, a base 131, a base electromagnetic coil,
200. the support rod, 210, the guide groove,
300. a movable block is arranged on the base plate,
310. a mounting seat 311, a mounting cavity 312, a U-shaped opening 313, a proximity switch,
320. a clamping device 321, a fixed seat 322, a clamping motor 323, a clamping screw rod 324, a clamping slide block 325, a clamping claw 326 and a connecting rod,
330. a pressing motor 331, a pressing turbine gear,
400. a down-pressing screw 401, a screw gear 402, a down-pressing slider 403, a pressing rod 404 and a micro switch,
410. guide shaft 411, upper limit switch 412, lower limit switch 413, end plate 414 and end plate switch
500. A longitudinal motor 501, a longitudinal turbine gear 502, a longitudinal gear 503, a push-down switch,
600. a dustproof electromagnetic coil 601, an inner iron core 602, a supporting arm 603, a dustproof plug 604, an upper magnet ring 605, a lower magnet ring,
700. a controller;
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In addition, it should be noted that, unless otherwise specified or indicated, the terms "upper", "lower", and the like that may be referred to in the specification are only used for distinguishing various components, elements, steps, and the like in the specification, and are not used for indicating logical relationships or sequential relationships among the various components, elements, steps, and the like.
The relative terms "forward rotation" and "reverse rotation" of the clamp motor 322, the push-down motor 330, and the longitudinal motor 500 are for convenience of description only and do not represent a specific operation direction of the motors.
The relative terms "forward energization" and "reverse energization" of the dust-proof solenoid 600 are merely for convenience of description and do not represent the specific energization current direction of the solenoid.
A quantitative sample introduction device with a dust plug for oil sample chromatographic analysis comprises a support 100 with a T-shaped cross section and comprising a top plate 110, a side plate 120 and a base 130, wherein a longitudinal T-shaped chute and a longitudinal rack 121 are arranged on the inner side surface of the side plate 120, the base 130 is in a Y-shaped structure, an adsorption device is arranged on the base 130, and further the adsorption device is a base electromagnetic coil 131 with an armature iron and arranged in the base 130; further, the suction device may also be one or more sets of vacuum suction cups disposed on the underside of the base 130.
A support rod 200 formed of a cylindrical non-magnetic material is longitudinally disposed between the top plate 110 and the base 130.
A movable block 300 and a hollow down-pressing screw 400 are slidably sleeved on the support rod 200.
A sliding block matched with the sliding groove is arranged on one side of the movable block 300 facing the side plate 120, and the movable block 300 slides longitudinally in the sliding groove under the guidance of the sliding block.
The movable block 300 is provided with a longitudinal transmission device, the longitudinal transmission device comprises a longitudinal motor 500 which is longitudinally arranged, a longitudinal turbine gear 501 is mounted on an output shaft of the longitudinal motor 500, a longitudinal gear 502 is fixedly mounted on the movable block 300, the longitudinal gear 502 is respectively meshed with the longitudinal turbine gear 501 and the longitudinal rack 121, and the movable block 300 is pushed to longitudinally move on the support rod 200 by mutual transmission between the gears along with the rotation of the longitudinal motor 500.
The movable block 300 is provided with an installation seat 310, the installation seat 310 is provided with a longitudinally through U-shaped opening 312, a U-shaped installation cavity 311 is arranged in the U-shaped opening 312, and a support lug of the injector is clamped in the installation cavity 311 of the U-shaped opening 312.
The movable block 300 is provided with a clamping device 320 below the mounting seat 310, the clamping device 320 comprises a fixed seat 321 arranged on the movable block 300, the fixed seat 321 is provided with a horizontal dovetail groove which takes the central axis of the U-shaped opening 312 as a central symmetry axis, symmetrical clamping claws 325 are arranged in the dovetail groove in a sliding manner, a clamping motor 322 is arranged on one side of a fixed seat 321, a clamping screw 323 passing through the fixed seat 321 is arranged on an output shaft of the clamping motor 322, a clamping slide block 324 is connected on the clamping screw 323 in a rolling manner through a thread, a connecting rod 326 is arranged between the clamping slide block 324 and the clamping claws 325, two parallel groups of connecting rods 326 are arranged on each side, a rubber layer is arranged in the clamping surface of the clamping claws 325, a pressure sensor is arranged on the inner side of the clamping surface of at least one clamping claw 325, when the syringe support lug is clamped in the mounting cavity 311, the clamping device 320 is used for clamping and fixing the syringe barrel.
The movable block 300 is provided with a proximity switch 313, the proximity switch 313 is positioned between the mounting seat 310 and the clamping device 320, the working surface direction of the proximity switch 313 is the same as the opening direction of the U-shaped opening 312, and the proximity switch 313 points to the central axis of the U-shaped opening 312.
The upper side of the movable block 300 is provided with a press motor 330, and the output shaft of the press motor 330 is provided with a press turbine gear 331.
The downward-pressing screw 400 is positioned on the upper side of the movable block 300 and is rotationally connected with the movable block 300, a screw gear 401 is arranged on the downward-pressing screw 400, and the screw gear 401 is meshed with the downward-pressing turbine gear 331.
The upper side of the movable block 300 is provided with a guide shaft 410 parallel to the downward-pressing screw 400, two ends of the guide shaft 410 are provided with an adjustable upper limit switch 411 and an adjustable lower limit switch 412, the tail ends of the downward-pressing screw 400 and the guide shaft 410 are provided with an end plate 413, the end plate 413 is rotatably connected with the downward-pressing screw 400, the end plate 413 is fixedly connected with the guide shaft 410, the upper side surface of the end plate 413 is provided with an end plate switch 414, and a trigger component of the end plate switch 414 can be contacted with the top plate 110.
A lower pressing slider 402 is arranged on the lower pressing screw 400 and the guide shaft 410 in a sliding manner, the lower pressing slider 402 moves between an upper limit switch 411 and a lower limit switch 412, the lower pressing slider 402 is in threaded rolling connection with the lower pressing screw 400, the lower pressing slider 402 is in tight sliding connection with the guide shaft 410, a transverse press rod 403 is arranged on the lower pressing slider 402, a controller 700 is arranged on the press rod 403, a micro switch 404 is arranged on one side of the press rod 403 facing the clamping device 320, and the triggering part of the micro switch 404, the central axis of the U-shaped opening 312 and the central axis of the clamping surface of the clamping claw 325 are overlapped in the longitudinal direction.
A push-down switch 503 capable of being adjusted longitudinally is further disposed on the supporting rod 200, the push-down switch 503 is disposed between the movable block 300 and the base 130, a trigger part of the push-down switch 503 can touch the movable block 300, and when the push-down switch 503 is triggered by the movable block 300, a syringe needle installed in the mounting cavity 311 is inserted into a sample inlet of the chromatograph.
The support rod 200 is provided with a guide groove 210 below the down-press switch 503, the guide groove 210 is arranged in a spiral quarter circle, an upper magnet ring 604 and a lower magnet ring 605 with opposite polarity directions are fixed on the support rod 200, the support rod 200 is sleeved with a dustproof electromagnetic coil 600 capable of sliding up and down, the dustproof electromagnetic coil 600 is fixed on the outer side of an inner iron core 601 with an I-shaped cross section, the inner iron core 601 is sleeved on the support rod 200 between the upper magnet ring 604 and the lower magnet ring 605 in a sliding manner, the dustproof electromagnetic coil 600 is a bidirectional electromagnetic coil, the dustproof electromagnetic coil 600 is provided with a support arm 602, one side of the support arm 602 facing the base 130 is provided with a conical column-shaped dustproof plug 603, the inner surface of the inner iron core 601 is provided with a guide block clamped in the guide groove 210, the guide block slides along the guide groove 210 in the up and down movement process of the inner iron core 601, and when the guide block is at the lower end position of the guide, the lower side of the dust plug 603 is attached to the sample inlet of the chromatograph, the inner core 601 is magnetically attached to the lower magnet ring 605, when the guide block is at the upper end of the guide groove 210, the dust plug 603 rotates 90 degrees in the horizontal plane direction, and the upper side of the inner core 601 is magnetically attached to the upper magnet ring 604.
The base electromagnetic coil 131, the proximity switch 313, the clamping motor 322, the pressure sensor, the pressing motor 330, the micro switch 404, the upper limit switch 411, the lower limit switch 412, the end plate switch 414, the longitudinal motor 500, the pressing switch 503 and the dustproof electromagnetic coil 600 are respectively electrically connected with the controller 700.
Further, the pressing motor 330 and the chucking motor 322 employ servo motors.
Further, the use method of the quantitative sample injection device with the dust plug for the chromatographic analysis of the oil sample comprises the following steps:
step 1: mounting and fixing of sample introduction device
Place near the introduction port of chromatograph with sampling device, adjust sampling device's position, make dust plug 603 and chromatograph's introduction port coincidence, and closely laminate, open adsorption equipment afterwards, control base solenoid 131 through controller 700 promptly and circular telegram, base solenoid 131 produces magnetic field force, adsorb on the shell of chromatograph, if base solenoid 131 can't adsorb on the shell of chromatograph, then adopt vacuum chuck and chromatograph shell to adsorb mutually, reach fixed sampling device's purpose.
Step 2: initial ready state
After the sample injection device is installed and fixed and powered on, the sample injection device is in a standby state, that is, the clamping claws 325 of the clamping device 320 are in an open state, the downward-pressing slider 402 contacts with the trigger part of the upper limit switch 411, the trigger part of the end plate switch 414 contacts with the top plate 110, and the inner iron core 601 is magnetically attached to the lower magnet ring 605.
And step 3: placement and fixation of syringes
After the oil sample injector extracts the oil sample, the support lug of the injector is hung in the mounting cavity 311, the cylinder body of the injector passes through the U-shaped opening 312 and hangs downwards, after the proximity switch 313 detects the cylinder body of the injector, the controller 700 controls the clamping device 320 to clamp the cylinder body, namely, the clamping motor 322 drives the clamping screw 323 to rotate in the positive direction, the clamping screw 323 drives the clamping slide block 324 to move inwards, the connecting rod 326 drives the clamping claw 325 to fold towards the middle, the pressure sensor on the inner side of the clamping claw 325 detects the pressure between the clamping claw 325 and the cylinder body of the injector in real time, when the clamping pressure reaches a certain value, the controller 700 controls the clamping motor 322 to stop working, and at this time, the injector is placed and fixed.
And 4, step 4: stopping of syringe injection piston
After the injector is fixed, that is, after the clamping motor 322 stops working, the controller 700 controls the pressing motor 330 to rotate forward, the pressing turbine gear 331 drives the screw rod gear 401 on the pressing screw rod 400 to rotate forward, the pressing slider 402 slowly and stably moves downward along with the forward rotation of the pressing screw rod 400, and after the trigger component of the microswitch 404 on the pressing rod 403 is triggered by the injection piston of the injector, the controller 700 controls the pressing motor 330 to stop working.
And 5: retraction of dust plug 603
After the push-down motor 330 stops working, the controller 700 controls the dustproof electromagnetic coil 600 to supply forward current for 3-5 seconds and then to cut off the current, when the forward current is supplied, the dustproof electromagnetic coil 600 generates forward magnetic field force, the magnetic field force is repelled from the lower magnet ring 605 and attracted to the upper magnet ring 604, so that the dustproof electromagnetic coil 600 drives the inner iron core 601 to move upwards, finally the inner iron core 601 and the upper magnet ring 604 are magnetically attracted and attached, meanwhile, due to the guide of the guide groove 210 to the guide block, the inner iron core 601 rotates 90 degrees in the horizontal plane direction in the upward movement process, the support arm 602 rotates 90 degrees, and the dustproof plug 603 is separated from the sample inlet and avoids the advancing route of the syringe needle.
Step 6: syringe insertion
After the controller 700 starts the dustproof electromagnetic coil 600, the controller 700 then controls the longitudinal motor 500 to rotate in the forward direction, and along with the forward transmission of the longitudinal turbine gear 501 and the longitudinal gear 502 on the longitudinal rack 121, the movable block 300 moves downwards stably, after the movable block 300 triggers the trigger part of the push-down switch 503, the controller 700 controls the longitudinal motor 500 to stop working, and at the moment, the plug of the injector is inserted into the sample inlet of the chromatograph.
And 7: oil sample introduction
After the longitudinal motor 500 stops working, the controller 700 controls the down-pressure motor 330 to rotate forward again, the down-pressure slider 402 moves downward to press the injection piston of the injector to move downward, the oil sample in the injector is injected into the sample inlet of the chromatograph, and after the down-pressure slider 402 triggers the trigger part of the lower limit switch 412, the controller 700 controls the down-pressure motor 330 to stop working.
And 8: syringe pull-out
After the lower limit switch 412 is triggered by pressing the sliding block 402 downwards, the controller 700 controls the longitudinal motor 500 to rotate in the reverse direction, the movable block 300 moves upwards stably along with the reverse transmission of the longitudinal turbine gear 501 and the longitudinal gear 502 on the longitudinal rack 121 to pull out the needle of the injector from the sample inlet of the chromatograph, when the trigger part of the end plate switch 414 is triggered by the top plate 110, the controller 700 controls the longitudinal motor 500 to stop working, and at the moment, the plug of the injector is pulled out from the sample inlet of the chromatograph.
And step 9: release of the Syringe
When the longitudinal motor 500 stops working, the controller 700 controls the pressing motor 330 to rotate reversely, the pressing turbine gear 331 drives the screw gear 401 on the pressing screw 400 to rotate reversely, the pressing slider 402 moves up stably along with the reverse rotation of the pressing screw 400, when the pressing slider 402 triggers the trigger part of the upper limit switch 411, the controller 700 controls the pressing motor 330 to stop working, the controller 700 controls the clamping motor 322 in the clamping device 320 to rotate reversely while the pressing motor 330 rotates reversely, the clamping claws 325 release the clamped syringe barrel, when the clamping claws 325 expand to the standby initial position, the controller 700 controls the clamping motor 322 to stop working, and the operator can take the syringe down at any time.
Step 10: sealing of dust plug 603
After the trigger part of the end plate switch 414 is triggered by the top plate 110, the controller 700 controls the dustproof electromagnetic coil 600 to switch on 3-5 seconds of reverse current and then switch off the current, when the reverse current is switched on, the dustproof electromagnetic coil 600 generates reverse magnetic field force, the magnetic field force is attracted to the lower magnet ring 605 and is repelled to the upper magnet ring 604, so that the dustproof electromagnetic coil 600 drives the inner iron core 601 to move downwards, finally, the inner iron core 601 and the lower magnet ring 605 are magnetically attracted and attached, because the guide groove 210 guides the guide block, the support arm 602 rotates for 90 degrees, and the dustproof plug 603 is finally attached and sealed with the sample inlet of the chromatograph, so far, the sample introduction device finishes working and waits for next sample.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and various changes and modifications can be made by workers in the light of the above description without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and all equivalent changes and modifications in the shape, structure, characteristics and spirit of the scope of the present invention are included in the scope of the claims of the present invention.
Claims (2)
1. The utility model provides a method for using of oil appearance chromatography quantitative sampling device with dust plug which characterized in that:
the quantitative sample introduction device with the dust plug for oil sample chromatographic analysis comprises a support (100) which has a T-shaped cross section and comprises a top plate (110), a side plate (120) and a base (130), wherein a longitudinal T-shaped sliding groove and a longitudinal rack (121) are arranged on the inner side surface of the side plate (120), the base (130) is of a Y-shaped structure, an adsorption device is arranged on the base (130), the adsorption device is a base electromagnetic coil (131) or a vacuum sucker which is arranged in the base (130) and is provided with an armature, a support rod (200) which is formed by a cylindrical non-magnetic-conductive material is longitudinally arranged between the top plate (110) and the base (130),
the support rod (200) is sleeved with a movable block (300) and a hollow down-pressing screw rod (400) in a sliding way,
a sliding block matched with the sliding groove is arranged on one side of the movable block (300) facing the side plate (120), the movable block (300) can slide longitudinally in the sliding groove under the guidance of the sliding block,
the movable block (300) is provided with a longitudinal transmission device, the longitudinal transmission device comprises a longitudinal motor (500) which is longitudinally arranged, an output shaft of the longitudinal motor (500) is provided with a longitudinal turbine gear (501), a longitudinal gear (502) is fixedly arranged on the movable block (300), the longitudinal gear (502) is respectively meshed and matched with the longitudinal turbine gear (501) and a longitudinal rack (121) to push the movable block (300) to longitudinally move on the supporting rod (200),
the movable block (300) is provided with a mounting seat (310), the mounting seat (310) is provided with a longitudinally through U-shaped opening (312), a U-shaped mounting cavity (311) is arranged in the U-shaped opening (312), a support lug of the injector is clamped in the mounting cavity (311) of the U-shaped opening (312),
the clamping device (320) is arranged on the movable block (300), the clamping device (320) is arranged below the mounting seat (310), the clamping device (320) comprises a fixed seat (321) arranged on the movable block (300), a horizontal dovetail groove which takes the central axis of the U-shaped opening (312) as a central symmetry axis is arranged on the fixed seat (321), symmetrical clamping claws (325) are arranged in the dovetail groove in a sliding manner,
a clamping motor (322) is arranged on one side of the fixed seat (321), a clamping lead screw (323) penetrating through the fixed seat (321) is arranged on an output shaft of the clamping motor (322), a clamping slide block (324) is connected to the clamping lead screw (323) in a rolling mode through threads, a connecting rod (326) is arranged between the clamping slide block (324) and the clamping claw (325), two parallel groups of connecting rods (326) are arranged on each side, a rubber layer is arranged in a clamping surface of the clamping claw (325), a pressure sensor is arranged on the inner side of the clamping surface of at least one clamping claw (325), and when the syringe support lug is clamped in the installation cavity (311), the clamping device (320) is used for clamping and fixing the syringe body,
a proximity switch (313) is arranged on the movable block (300), the proximity switch (313) is positioned between the mounting seat (310) and the clamping device (320), the direction of the working surface of the proximity switch (313) is the same as the opening direction of the U-shaped opening (312) and points to the central axis of the U-shaped opening (312),
a lower pressing motor (330) is arranged on the upper side of the movable block (300), a lower pressing turbine gear (331) is arranged on an output shaft of the lower pressing motor (330),
the downward-pressing screw rod (400) is positioned at the upper side of the movable block (300) and is rotationally connected with the movable block (300),
a screw rod gear (401) is formed on the downward pressing screw rod (400), the screw rod gear (401) is meshed and matched with the downward pressing turbine gear (331),
a guide shaft (410) parallel to the downward-pressing screw rod (400) is arranged on the upper side of the movable block (300), an adjustable upper limit switch (411) and an adjustable lower limit switch (412) are arranged at two ends of the guide shaft (410),
the tail ends of the pressing screw rod (400) and the guide shaft (410) are provided with end plates (413), the end plates (413) are rotatably connected with the pressing screw rod (400), the end plates (413) are fixedly connected with the guide shaft (410), the upper side faces of the end plates (413) are provided with end plate switches (414), and trigger parts of the end plate switches (414) can be touched with the top plate (110),
a lower pressing sliding block (402) is arranged on the lower pressing screw rod (400) and the guide shaft (410) in a sliding manner, the lower pressing sliding block (402) moves between an upper limit switch (411) and a lower limit switch (412), the lower pressing sliding block (402) is in threaded rolling connection with the lower pressing screw rod (400), and the lower pressing sliding block (402) is in tight sliding connection with the guide shaft (410),
a transverse pressure lever (403) is arranged on the downward-pressing sliding block (402), a controller (700) is arranged on the pressure lever (403),
a microswitch (404) is arranged on one side of the pressure lever (403) facing the clamping device (320), the triggering part of the microswitch (404), the central axis of the U-shaped opening (312) and the central axis of the clamping surface of the clamping claw (325) are superposed in the longitudinal direction,
a lower press switch (503) which can be longitudinally adjusted is also arranged on the supporting rod (200), the lower press switch (503) is positioned between the movable block (300) and the base (130), the triggering part of the lower press switch (503) can be contacted with the movable block (300), when the lower press switch (503) is triggered by the movable block (300), the needle head of the injector clamped in the mounting cavity (311) is inserted into the sample inlet of the chromatograph,
the support rod (200) is provided with a guide groove (210) below the lower pressure switch (503), the guide groove (210) is arranged in a spiral quarter circle, an upper magnet ring (604) and a lower magnet ring (605) with opposite polarity directions are fixed on the support rod (200), the support rod (200) is sleeved with a dustproof electromagnetic coil (600) capable of sliding up and down, the dustproof electromagnetic coil (600) is fixed on the outer side of an inner iron core (601) with an I-shaped cross section, the inner iron core (601) is sleeved on the support rod (200) between the upper magnet ring (604) and the lower magnet ring (605) in a sliding manner, the dustproof electromagnetic coil (600) is a bidirectional electromagnetic coil, a support arm (602) is arranged on the dustproof electromagnetic coil (600), a conical cylindrical dustproof plug (603) is arranged on one side of the support arm (602) facing the base (130), and a guide block clamped in the guide groove (210) is arranged on the inner surface of the inner iron core (601), the inner iron core (601) slides along the guide groove (210) in the up-and-down movement process, when the guide block is arranged at the lower end of the guide groove (210), the central axis of the dustproof plug (603) coincides with the central axis of the U-shaped opening (312), the lower side of the dustproof plug (603) is attached to a sample inlet of a chromatograph, the lower side of the inner iron core (601) is magnetically attached to the lower magnet ring (605), when the guide block is arranged at the upper end of the guide groove (210), the dustproof plug (603) rotates 90 degrees in the horizontal plane direction, the upper side of the inner iron core (601) is magnetically attached to the upper magnet ring (604),
the base electromagnetic coil (131), the proximity switch (313), the clamping motor (322), the pressure sensor, the pressing motor (330), the microswitch (404), the upper limit switch (411), the lower limit switch (412), the end plate switch (414), the longitudinal motor (500), the pressing switch (503) and the dustproof electromagnetic coil (600) are respectively and electrically connected with the controller (700),
the quantitative sample introduction device with the dust plug for oil sample chromatographic analysis is used according to the following method:
step 1: mounting and fixing of sample introduction device
Placing a sample introduction device near a sample introduction port of a chromatograph, adjusting the position of the sample introduction device to enable a dustproof plug (603) to coincide with the sample introduction port of the chromatograph and be tightly attached, then starting an adsorption device, namely controlling a base electromagnetic coil (131) to be electrified through a controller (700), enabling the base electromagnetic coil (131) to generate magnetic field force to be adsorbed on a shell of the chromatograph, and if the base electromagnetic coil (131) cannot be adsorbed on the shell of the chromatograph, adopting a vacuum chuck to adsorb the shell of the chromatograph to achieve the purpose of fixing the sample introduction device;
step 2: initial ready state
After the sample feeding device is installed and fixed and powered on, the sample feeding device is in a standby state, namely a clamping claw (325) of a clamping device (320) is in an open state, a pressing slide block (402) is in contact with a trigger part of an upper limit switch (411), a trigger part of an end plate switch (414) is in contact with a top plate (110), and an inner iron core (601) is in magnetic attraction joint with a lower magnet ring (605);
and step 3: placement and fixation of syringes
After an oil sample injector extracts an oil sample, a lug of the injector is hung in an installation cavity (311), a cylinder body of the injector passes through a U-shaped opening (312) and hangs downwards, after a proximity switch (313) detects the cylinder body of the injector, a controller (700) controls a clamping device (320) to clamp the cylinder body, namely a clamping motor (322) drives a clamping lead screw (323) to rotate in the positive direction, the clamping lead screw (323) drives a clamping slide block (324) to move inwards, a connecting rod (326) drives a clamping claw (325) to fold towards the middle, a pressure sensor on the inner side of the clamping claw (325) detects the pressure between the clamping claw (325) and the cylinder body of the injector in real time, and when the clamping pressure reaches a certain value, the controller (700) controls the clamping motor (322) to stop working, so far, the injector is placed and fixed;
and 4, step 4: stopping of syringe injection piston
After the injector is fixed, namely after the clamping motor (322) stops working, the controller (700) controls the downward-pressing motor (330) to rotate in the forward direction, the downward-pressing turbine gear (331) drives the lead screw gear (401) on the downward-pressing lead screw (400) to rotate in the forward direction, the downward-pressing slider (402) slowly and stably moves downward along with the forward rotation of the downward-pressing lead screw (400), and when the trigger part of the microswitch (404) on the pressing rod (403) is triggered by the injection piston of the injector, the controller (700) controls the downward-pressing motor (330) to stop working;
and 5: retraction of dust plug (603)
After the down-pressing motor (330) stops working, the controller (700) controls the dustproof electromagnetic coil (600) to be electrified for 3-5 seconds and then to be disconnected, when the forward current is switched on, the dustproof electromagnetic coil (600) generates forward magnetic field force, the magnetic field force is repelled from the lower magnet ring (605) and attracted to the upper magnet ring (604), so that the dustproof electromagnetic coil (600) drives the inner iron core (601) to move upwards, finally the inner iron core (601) is attached to the upper magnet ring (604) in a magnetic attraction manner, and meanwhile, due to the guide of the guide groove (210) to the guide block, the inner iron core (601) rotates 90 degrees in the horizontal plane direction in the upward moving process, the support arm (602) rotates 90 degrees, so that the dustproof plug (603) is separated from the sample inlet and avoids the advancing route of the syringe needle;
step 6: syringe insertion
After the controller (700) starts the dustproof electromagnetic coil (600), the controller (700) then controls the longitudinal motor (500) to rotate in the forward direction, the movable block (300) moves downwards stably along with the forward transmission of the longitudinal turbine gear (501) and the longitudinal gear (502) on the longitudinal rack (121), after the movable block (300) triggers the trigger part of the down-pressing switch (503), the controller (700) controls the longitudinal motor (500) to stop working, and at the moment, the plug of the injector is inserted into the sample inlet of the chromatograph;
and 7: oil sample introduction
After the longitudinal motor (500) stops working, the controller (700) controls the pressing motor (330) to rotate forward again, the pressing slider (402) moves downwards to press the injection piston of the injector to move downwards, an oil sample in the injector is injected into a sample inlet of the chromatograph, and after the pressing slider (402) triggers a triggering part of the lower limit switch (412), the controller (700) controls the pressing motor (330) to stop working;
and 8: syringe pull-out
After the lower limit switch (412) is triggered by pressing the sliding block (402) downwards, the controller (700) controls the longitudinal motor (500) to rotate reversely, the movable block (300) moves upwards stably along with the reverse transmission of the longitudinal turbine gear (501) and the longitudinal gear (502) on the longitudinal rack (121) to pull out the needle of the injector from the sample inlet of the chromatograph, when the trigger part of the end plate switch (414) is triggered by the top plate (110), the controller (700) controls the longitudinal motor (500) to stop working, and at the moment, the plug of the injector is pulled out from the sample inlet of the chromatograph;
and step 9: release of the Syringe
When the longitudinal motor (500) stops working, the controller (700) controls the pressing motor (330) to rotate reversely, the pressing turbine gear (331) drives the lead screw gear (401) on the pressing lead screw (400) to rotate reversely, the pressing slider (402) moves upwards stably along with the reverse rotation of the pressing lead screw (400), after the pressing slider (402) triggers the trigger component of the upper limit switch (411), the controller (700) controls the pressing motor (330) to stop working, when the pressing motor (330) rotates reversely, the controller (700) controls the clamping motor (322) in the clamping device (320) to rotate reversely, the clamping claw (325) loosens the clamped syringe barrel, when the clamping claw (325) expands to the standby initial position, the controller (700) controls the clamping motor (322) to stop working, and an operator can take down the syringe at any time;
step 10: sealing of dust plug (603)
After the trigger part of the end plate switch (414) is triggered by the top plate (110), the controller (700) controls the dustproof electromagnetic coil (600) to be electrified with reverse current for 3-5 seconds and then to be disconnected, when the reverse current is electrified, the dustproof electromagnetic coil (600) generates reverse magnetic field force, the magnetic field force is attracted with the lower magnet ring (605) and is repelled with the upper magnet ring (604), so that the dustproof electromagnetic coil (600) drives the inner iron core (601) to move downwards, finally, the inner iron core (601) is magnetically attached to the lower magnet ring (605), due to the guide of the guide block by the guide groove (210), the support arm (602) rotates for 90 degrees, the dustproof plug (603) is finally attached to and sealed with the sample inlet of the chromatograph, and the sample introduction device finishes working till the next sample introduction is waited.
2. The quantitative sampling device with the dust plug for oil sample chromatographic analysis according to claim 1, characterized in that:
the pressing motor (330) and the clamping motor (322) adopt servo motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065211.7A CN106596810B (en) | 2017-02-06 | 2017-02-06 | Use method of oil sample chromatographic analysis quantitative sampling device with dust plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065211.7A CN106596810B (en) | 2017-02-06 | 2017-02-06 | Use method of oil sample chromatographic analysis quantitative sampling device with dust plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106596810A CN106596810A (en) | 2017-04-26 |
| CN106596810B true CN106596810B (en) | 2020-12-04 |
Family
ID=58585574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710065211.7A Active CN106596810B (en) | 2017-02-06 | 2017-02-06 | Use method of oil sample chromatographic analysis quantitative sampling device with dust plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106596810B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019006706A1 (en) * | 2017-07-05 | 2019-01-10 | 广东欧珀移动通信有限公司 | Dust screen assembly, electroacoustic assembly, housing assembly, and electronic device |
| CN111366396B (en) * | 2020-03-20 | 2022-07-29 | 北京空间飞行器总体设计部 | Small celestial body integrated sampler with grinding and clamping functions |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062310A (en) * | 1990-03-01 | 1991-11-05 | Jade Systems, Inc. | Probe inlet apparatus and method |
| US5882601A (en) * | 1997-06-18 | 1999-03-16 | Merck & Co., Ltd. | Deflected septum seal access port |
| US6840456B1 (en) * | 2002-09-11 | 2005-01-11 | The United States Of America As Represented By The Secretary Of The Army | Injection valves |
| CN1755358A (en) * | 2004-09-30 | 2006-04-05 | 安捷伦科技公司 | Injection port sealing apparatus and its gas phase analyzer system |
| CN200996957Y (en) * | 2006-10-10 | 2007-12-26 | 北京东西分析仪器有限公司 | Magnetic-fixed gas-phase chromatography sampling head |
| CN102091455A (en) * | 2010-12-16 | 2011-06-15 | 中国科学院高能物理研究所 | Automatic continuous filter |
| CN103608672A (en) * | 2011-06-09 | 2014-02-26 | 安捷伦科技有限公司 | Sample injector with disconnectable injection needle |
| CN105929185A (en) * | 2016-06-21 | 2016-09-07 | 鹿钦宇 | Full-automatic biochemical instrument and reagent adding method thereof |
-
2017
- 2017-02-06 CN CN201710065211.7A patent/CN106596810B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062310A (en) * | 1990-03-01 | 1991-11-05 | Jade Systems, Inc. | Probe inlet apparatus and method |
| US5882601A (en) * | 1997-06-18 | 1999-03-16 | Merck & Co., Ltd. | Deflected septum seal access port |
| US6840456B1 (en) * | 2002-09-11 | 2005-01-11 | The United States Of America As Represented By The Secretary Of The Army | Injection valves |
| CN1755358A (en) * | 2004-09-30 | 2006-04-05 | 安捷伦科技公司 | Injection port sealing apparatus and its gas phase analyzer system |
| CN200996957Y (en) * | 2006-10-10 | 2007-12-26 | 北京东西分析仪器有限公司 | Magnetic-fixed gas-phase chromatography sampling head |
| CN102091455A (en) * | 2010-12-16 | 2011-06-15 | 中国科学院高能物理研究所 | Automatic continuous filter |
| CN103608672A (en) * | 2011-06-09 | 2014-02-26 | 安捷伦科技有限公司 | Sample injector with disconnectable injection needle |
| CN105929185A (en) * | 2016-06-21 | 2016-09-07 | 鹿钦宇 | Full-automatic biochemical instrument and reagent adding method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106596810A (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106885863B (en) | A kind of oil sample chromatography quantitative sampling device and application method | |
| CN106596810B (en) | Use method of oil sample chromatographic analysis quantitative sampling device with dust plug | |
| CN104001563B (en) | Pipettor | |
| CN106872622B (en) | Oil sample chromatographic analysis quantitative sampling device with dustproof plug | |
| CN111693823A (en) | Withstand voltage testing device | |
| CN108568666B (en) | Automobile door handle assembly equipment | |
| CN107860853A (en) | A kind of needle type extraction device and its application method for concentrating volatile benzene homologues | |
| CN206920457U (en) | A kind of new automatic micro-sampling arm | |
| CN110927300A (en) | Automatic injection device of oil chromatogram gas sample | |
| CN202870254U (en) | Test device specially used for module type circuit breaker | |
| CN203944404U (en) | A kind of pipettor | |
| CN202024846U (en) | Testing device for impact force of tripper | |
| CN210742350U (en) | Switch needle card device | |
| CN208155951U (en) | A kind of gas chromatograph | |
| CN104569227B (en) | Gas injection device and method for insulating oil container | |
| CN203738635U (en) | Electrode clamping device | |
| CN208477069U (en) | High-power IGCT device test fixture slide unit positioning mechanism | |
| CN208782696U (en) | A kind of safe quick-changing mechanism of charging ram | |
| CN207571088U (en) | A kind of needle type extraction device for concentrating volatile benzene homologues | |
| CN219104837U (en) | Liquid chromatograph | |
| CN202994442U (en) | Axial force testing device for fluorescent lamp holder | |
| CN215641693U (en) | Electromagnetic switch performance detection equipment | |
| CN209417063U (en) | A kind of full-automatic micro-sampling arm of small-sized single-pass | |
| CN216327855U (en) | Automatic positioning device for test tube | |
| CN108372083B (en) | Automatic glue injection device for capillary electrophoresis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201116 Address after: No.35, Yaoting Yang, Zhuangwan village, Xucun Town, Haining City, Jiaxing City, Zhejiang Province, 314000 Applicant after: Haining Zhongbao Home Textile Co., Ltd Address before: 265400 Zhaoyuan City, Shandong Province, Jincheng Road, No. 169 State Grid Shandong electric power company, Zhaoyuan power supply company, Applicant before: STATE GRID SHANDONG ELECTRIC POWER COMPANY ZHAOYUAN CITY POWER SUPPLY Co. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |