CN204832222U - Automatic sampling system of discernment liquid level - Google Patents
Automatic sampling system of discernment liquid level Download PDFInfo
- Publication number
- CN204832222U CN204832222U CN201520502489.2U CN201520502489U CN204832222U CN 204832222 U CN204832222 U CN 204832222U CN 201520502489 U CN201520502489 U CN 201520502489U CN 204832222 U CN204832222 U CN 204832222U
- Authority
- CN
- China
- Prior art keywords
- sample introduction
- introduction needle
- liquid level
- conduction
- tube
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 73
- 238000005070 sampling Methods 0.000 title claims abstract description 37
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 238000009413 insulation Methods 0.000 claims description 26
- 239000013078 crystal Substances 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 230000002209 hydrophobic effect Effects 0.000 claims description 8
- 238000011161 development Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000003908 quality control method Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000012085 test solution Substances 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000002381 plasma Anatomy 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an automatic sampling system of discernment liquid level, which comprises a frame, sample test tube conveyor, it presss from both sides tight cantilever to be equipped with an insulating syringe in the frame, the extension end of the insulating tight arm of syringe clamp presss from both sides the fastening decides a syringe who is used for detecting the liquid level, syringe is including electrically conductive inner tube, electrically conductive outer tube, be equipped with the insulating layer between electrically conductive inner tube and the electrically conductive outer tube, the feed liquor end of electrically conductive inner tube extends electrically conductive outer tube lower extreme, electrically conductive inner tube connects the negative electrode through the wire, electrically conductive outer tube connects the positive electrode through the wire, electrically conductive inner tube upper end is used for passing through insulating conduit with the sampling pump and links to each other, the controller is connected with syringe, sample test tube conveyor's driving motor, elevator motor and sampling pump electricity respectively, and the controller is used for receiving controls sample test tube conveyor's driving motor, the elevator motor and the sampling pump work of frame behind syringe's the liquid level signal respectively. The utility model discloses simple structure, it is with low costs, reached the automatic effect of following the liquid level of feeding needle.
Description
Technical field
The utility model relates to a kind of experiment detector device, is specifically related to a kind of sampling system of automatic identification liquid level.
Background technology
In medical science, chemistry and physical field, often need to carry out qualitative and quantitative analysis to material, thus understand the Wuli-Shili-Renli system approach of its research material.When carrying out experimental study, operating personnel draw test solution to be measured by entry needle from test tube, are then inserted in liquid injection port by entry needle, are injected in analyser by test solution to be measured and check.Each test all needs to detect large quantities of test tube solution, therefore needs testing crew from different test tubes, to extract test solution to be measured with entry needle frequently.Adopt the workload not only increasing experimenter in this way, reduce work efficiency, add cost of labor, and for the solution of layering easy in test tube, as upper and lower 2 layers or multilayer time, liquid level to be tested is a certain specific position below liquid level, in test solution sampling process to be measured, hand sampling is usually inaccurate, causes test figure to have error, as: the blood after centrifugal.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of sampling system of automatic identification liquid level, increases work efficiency, can identify liquid level, carry out automatic sampling, reduces test error and labour cost.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of sampling system of automatic identification liquid level, comprise frame, sample tube conveying device, described frame installs lifting motor, it is characterized in that: described frame is provided with a sample introduction needle jacking gear driven by lifting motor, described sample introduction needle jacking gear is provided with the sample introduction needle clamping cantilever of an insulation, the elongated end of the sample introduction needle clamp arm of described insulation is fixedly clamped one for detecting the sample introduction needle of liquid level, sample introduction needle is positioned at the top of sample tube conveying device, the described sample introduction needle for detecting liquid level comprises pipe in conduction, conduction outer tube, insulation course is provided with between pipe and conduction outer tube in described conduction, in conduction, the liquid feeding end of pipe extends conduction outer tube lower end, in described conduction, pipe connects negative electrode by wire, described conduction outer tube connects positive electrode by wire, and in described conduction, pipe upper end is used for being connected by insulated conduit with sampling pump, one controller is electrically connected with the drive motor of sample introduction needle, sample tube conveying device, lifting motor and sampling pump respectively, described controller for receive sample introduction needle liquid level signal after the drive motor of Quality control test tube conveying device, lifting motor and sampling pump work respectively.
Described controller comprises microprocessor, power circuit, sample introduction needle signal circuit, oscillating circuit and reset and start-up circuit, described power circuit is electrically connected with microprocessor and sample introduction needle signal circuit respectively, described sample introduction needle signal circuit, oscillating circuit, reset and start-up circuit are electrically connected with microprocessor respectively, described sample introduction needle signal circuit is for gathering test tube liquid level signal, described power circuit is powered to microprocessor and sample introduction needle signal circuit, whether described oscillating circuit touches liquid level for detecting sample introduction needle, and send to microprocessor, described reset and start-up circuit are used for making microprocessor recovery arrive initial state, the test tube liquid level signal that described microprocessor is used for receiving carries out AD conversion, analyze liquid level signal.
Described sample introduction needle signal circuit comprises crystal oscillator YIA, electric capacity C14, filter capacitor Y2, junction block J3, rectifier D2, computing follower U3, electric capacity C15, electric capacity C16 and resistance R5, the positive source VCC pin of described crystal oscillator YIA is electrically connected with power circuit, the power cathode GND pin ground connection of crystal oscillator YIA, the NC pin of oscillator YIA is empty pin, the output terminal OUT pin of crystal oscillator YIA is connected with one end of electric capacity C14, the other end of electric capacity C14 respectively with one end of filter capacitor Y2, 1 pin of junction block J3 connects, 1 pin of junction block J3 is connected with the conduction outer tube of sample introduction needle, 2 pin of junction block J3 are connected with pipe in the conduction of sample introduction needle, the other end of filter capacitor Y2 is connected with one end of rectifier D2, the other end of rectifier D2 respectively with the positive terminal of electric capacity C15, the in-phase input end of computing follower U3 connects, the negative pole end ground connection of electric capacity C15, the inverting input of computing follower U3, output terminal is connected with one end of electric capacity C16 and resistance R5 respectively, the other end ground connection of electric capacity C16 and resistance R5: the electric signal that described crystal oscillator YIA exports passes through electric capacity C14 through junction block J3 to sample introduction needle dividing potential drop, and by filter capacitor Y2 filtering, rectifier D2 rectification, computing follower U3 follows, send to microprocessor.
Described conduction outer tube outer wall is provided with hydrophobic coating, and in conduction, the downward development length of pipe is 2 ~ 5mm.
Described insulation course adopts insulation tube, described insulation tube in conduction between pipe and conduction outer tube, the length of insulation tube with conduct electricity in manage identical.
In described conduction, pipe all adopts stainless-steel tube with conduction outer tube.
Described sample introduction needle jacking gear comprises sample introduction needle bracing frame, the seat that is slidably installed, guide pole and tubular shaft, and the two ends up and down of described sample introduction needle bracing frame are respectively equipped with lower support platform and lower support platform, and upper and lower horizontal support platform is respectively equipped with through hole; Described guide pole is fixed between the upper and lower support platform of sample introduction needle bracing frame, described in the seat that is slidably installed install on the guide bar by clutch shaft bearing; The axle of described lifting motor is straight up through the through hole of lower support platform, the motor nut of lifting motor is connected with the seat that is slidably installed, described tubular shaft empty set is on the axle of lifting motor, tubular shaft lower end is fixedly connected on and is slidably installed on seat, the top of tubular shaft is arranged in the upper support platform of sample introduction needle bracing frame by the second bearing, and extend and upper support platform, one end that the upper end of described tubular shaft clamps cantilever with the sample introduction needle of insulation is connected.
Described lifting motor adopts linear stepping motor.
Described sample tube conveying device comprises support for rotary disc, stores rotating disk and drive motor, described drive motor is arranged on support for rotary disc, the output shaft of drive motor upwards, drive motor is connected with storage rotating disk by shaft coupling, and described storage rotating disk is circumferentially provided with some mounting grooves inserted for test tube.
The beneficial effects of the utility model: the utility model is provided with the sample introduction needle clamping cantilever of an insulation on sample introduction needle jacking gear, the elongated end of the sample introduction needle clamp arm of described insulation is fixedly clamped one for detecting the sample introduction needle of liquid level, sample introduction needle by conduct electricity interior pipe and conduction outer tube form, be provided with insulation course between pipe and conduction outer tube in conduction, in conduction, pipe connects negative electrode by wire; Conduction outer tube connects positive electrode by wire, and in described conduction, pipe upper end is used for being connected by insulated conduit with sampling pump; Controller for receive sample introduction needle liquid level signal after the drive motor of Quality control test tube conveying device, lifting motor and sampling pump work respectively.Described conduction external pipe connection positive electrode, in conduction, pipe connects negative electrode, with the size of Detection capacitance variable quantity, variable quantity can pre-set, the best can be carried out according to the electric conductivity of dissimilar sample to arrange, achieve stable, reliably to detect different conductivity liquid level, effectively solve a difficult problem for different conductivity liquid level identification, and detect the liquid of layer to be measured accurately.As: the deionized water of 18.25M, also can normally identify.Controller is adopted to carry out controlling to be able to batch operation in automatic Samples detection process, alleviate operator's workload, achieve automatic streamlineization operation, reduce infection rate, and blood plasma need not be isolated in advance to the blood plasma sampling detection of stratified liquid (after centrifugal blood).Therefore the utility model structure is simple, cost is low, be convenient to safeguard and change, adopt capacitance level detection mode, automatically can detect liquid level, locate the liquid level position of liquid accurately, according to how many adjustment sample introduction needle of suction amount decline and stretch into the height of liquid level, and for the organic solvent of electrical conductance difference, can be sensitive detect liquid level signal, improve reaction effect, reach the effect of charging pin automatic following liquid level.
Described controller comprises microprocessor, power circuit, sample introduction needle signal circuit, oscillating circuit and reset and start-up circuit, this controller adopts sample introduction needle signal circuit to gather level information, detect sample introduction needle by this oscillating circuit and whether touch liquid level, and send to microprocessor, improve accuracy and the degree of stability of liquid level collection signal.
Described conduction outer tube outer wall is provided with hydrophobic coating, in described conduction, the downward development length of pipe is 2 ~ 5mm, this hydrophobic coating avoids detection liquid to be measured in test tube and remains in conduction outer tube wall, can shorten pipe in conduction and, to the length of downward-extension, improve the sensitivity of sample introduction needle.
In described conduction, pipe all adopts stainless-steel tube with conduction outer tube, can ensure conduction inner and outer pipe conduction, turn avoid by corrosion to be tested in test tube.
Described sample tube conveying device comprises support for rotary disc, stores rotating disk and drive motor, adopt storage rotating disk to be not only convenient to place some test tubes to be measured, and floor area is little, conserve space.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model sample introduction needle;
Fig. 3 is the utility model circuit theory diagrams;
Fig. 4 is sample introduction needle signal circuit diagram in the utility model;
Fig. 5 is the utility model oscillating circuit figure.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
See shown in Fig. 1 to Fig. 5, a kind of sampling system of automatic identification liquid level, comprise frame 6, sampling pump 17, controller 16, sample tube conveying device 19, described frame 6 can be fixed on work top, frame 6 is provided with motor mounting hole, frame 6 is installed a sample introduction needle jacking gear 18, described sample introduction needle jacking gear 18 comprises sample introduction needle bracing frame 8, guide pole 9, be slidably installed seat 10 and tubular shaft 12, the two ends up and down of described sample introduction needle bracing frame 8 are respectively equipped with support platform 8-1 and lower support platform 8-2, on, lower horizontal support platform is respectively equipped with through hole 8-3, described sample introduction needle bracing frame 8 is fixed on the motor mounting hole of frame 6 by lower support platform 8-2 and screw, described guide pole 9 is fixed on the upper of sample introduction needle bracing frame 8, between lower support platform, the described seat 10 that is slidably installed is provided with bearing mounting hole and motor shaft through hole, clutch shaft bearing 11 is provided with in described bearing mounting hole, the seat 10 that is slidably installed is arranged on guide pole 9 by clutch shaft bearing 11, the seat 10 that is slidably installed can slide up and down along guide pole 9, the lower surface of the lower support platform 8-2 of sample introduction needle bracing frame 8 fixedly mounts a lifting motor 7, described lifting motor 7 adopts linear stepping motor, the axle of described lifting motor 7 is straight up through the through hole 8-3 of lower support platform 8-2 and the motor shaft through hole of the seat 10 that is slidably installed, the axle of lifting motor 7 is provided with motor nut 15, the motor nut 15 of lifting motor 7 is fixedly connected with the seat 10 that is slidably installed, and described lifting motor 7 moves up and down for driving the seat 10 that is slidably installed, described tubular shaft 12 is vertically fixed on and is slidably installed on seat 10, described tubular shaft 12 empty set is on the axle of lifting motor 7, the axle of lifting motor 7 is positioned at the center of tubular shaft 12, the tubular shaft 12 be slidably installed on seat 10 is driven to move up and down together by lifting motor 7, the top of tubular shaft 12 is arranged on the upper support platform 8-1 of sample introduction needle bracing frame 8 by the second bearing 13, and upwards extend and upper support platform 8-1, one end that top and the sample introduction needle insulated of described tubular shaft 12 clamp cantilever 14 is fixedly connected with.The elongated end of the sample introduction needle clamp arm 14 of described insulation is fixedly clamped one for detecting the sample introduction needle 1 of liquid level, the described sample introduction needle 1 for detecting liquid level comprises pipe 1-1 in conduction, conduction outer tube 1-3, in described conduction, pipe 1-1 all adopts stainless steel blank pipe with conduction outer tube 1-3, insulation course 1-2 is provided with between pipe 1-1 and conduction outer tube 1-3 in described conduction, described insulation course 1-2 adopts insulation tube, the length of described insulation tube is identical with the length of pipe 1-1 in conduction, the length of insulation tube also can be set to: the length of insulation tube is less than the length of pipe 1-1 in conduction, be greater than the length of conduction outer tube 1-3, conduction outer tube 1-3 outer wall is provided with hydrophobic coating, hydrophobic coating adopts existing hydrophobic coating, in conduction, the liquid feeding end of pipe 1-1 extends conduction outer tube 1-3 lower end, in conduction, the downward development length of pipe 1-1 is 2 ~ 5mm, in conduction, the outlet end of pipe 1-1 extends upward conduction outer tube 1-3, as during without hydrophobic coating, the downward development length of pipe 1-1 should at more than 5mm to prevent water droplet from affecting in conduction, in described conduction, pipe 1-1 connects negative electrode by wire, pipe 1-1 ground connection in conduction, described conduction outer tube 1-3 connects positive electrode by wire, in described conduction, pipe 1-1 upper end is used for being connected by insulated conduit with sampling pump 17, in conduction, pipe 1-1 outlet end is connected with sampling pump 17 by insulated conduit, be convenient in vitro to extract out from test tube by testing liquid, sampling pump 17 can be arranged in frame 6, also can be arranged on outside frame 6.
It is other that described sample tube conveying device 19 is positioned at frame 6, sample introduction needle 1 for detecting liquid level is positioned at the top of sample tube conveying device 19, described sample tube conveying device 19 comprises support for rotary disc 4, stores rotating disk 3 and drive motor 5, drive motor 5 adopts stepper motor, described drive motor 5 is arranged on support for rotary disc 4, the output shaft of drive motor 5 upwards, drive motor 5 is connected with storage rotating disk 3 by shaft coupling, described storage rotating disk 3 is circumferentially provided with some mounting grooves inserted for test tube 2, is inserted with the test tube 2 being loaded with test solution to be measured in each mounting groove.
Described controller 16 is electrically connected with the drive motor 5 of sample introduction needle 1, sample tube conveying device, lifting motor 7 and sampling pump 17 respectively, described controller 16 for receive sample introduction needle 1 liquid level signal after the drive motor 5 of Quality control test tube conveying device, lifting motor 7 and sampling pump 17 work respectively.
Described controller 16 comprises microprocessor, power circuit, sample introduction needle signal circuit, oscillating circuit and reset and start-up circuit, described power circuit is electrically connected with microprocessor and sample introduction needle signal circuit respectively, described sample introduction needle signal circuit, oscillating circuit, reset and start-up circuit are electrically connected with microprocessor respectively, described power circuit is powered to microprocessor and sample introduction needle signal circuit, and described power circuit can adopt existing conventional power circuit.Described sample introduction needle signal circuit for gathering test tube liquid level signal, and sends to microprocessor.Described oscillating circuit is for processing the signal of sample introduction needle, detects sample introduction needle and whether is grounding to liquid level, deliver to microprocessor after process.Described microprocessor is for analyzing the test tube liquid level signal received, and described microprocessor U2 adopts existing STM32 microprocessor.Described reset and start-up circuit are used for making microprocessor recovery arrive initial state, and described reset and start-up circuit can adopt the existing reset for STM32 microprocessor and start-up circuit.
Described sample introduction needle signal circuit comprises crystal oscillator YIA, electric capacity C14, filter capacitor Y2, relay J 3, rectifier D2, computing follower U3, electric capacity C15, electric capacity C16 and resistance R5, crystal oscillator YIA is active crystal oscillator, filter capacitor Y2 adopts quartz oscillator, the positive source VCC pin of described crystal oscillator YIA is electrically connected with power circuit, the power cathode GND pin ground connection of crystal oscillator YIA, the NC pin of oscillator YIA is empty pin, the output terminal OUT pin of crystal oscillator YIA is connected with one end of electric capacity C14, the other end of electric capacity C14 respectively with filter capacitor Y2, one end of junction block J3 connects, 1 pin of junction block J3 is connected with the conduction outer tube 1-3 of sample introduction needle, 2 pin of junction block J3 are connected with pipe 1-1 in the conduction of sample introduction needle, the other end of filter capacitor Y2 is connected with one end of rectifier D2, the other end of rectifier D2 respectively with the positive terminal of electric capacity C15, the in-phase input end of computing follower U3 connects, the negative pole end ground connection of electric capacity C15, the inverting input of computing follower U3, output terminal is connected with one end of electric capacity C16 and resistance R5 respectively, the other end ground connection of electric capacity C16 and resistance R5, the output terminal V0 of sample introduction needle signal circuit directly connects the AD signal input pin of microprocessor: the electric signal that described crystal oscillator YIA exports passes through electric capacity C14 through junction block J3 to sample introduction needle dividing potential drop, and by filter capacitor Y2 filtering, rectifier D2 rectification, computing follower U3 follows, send to microprocessor, AD conversion is carried out by microprocessor, analyze liquid level signal.
Described oscillating circuit comprises electric capacity C17, electric capacity C18, filter capacitor Y2, and the input end OSC_IN of oscillating circuit and the output terminal OSC_OUT of oscillating circuit are connected with the input of microprocessor, output terminal respectively.
Further: the upper support platform 8-1 side of described sample introduction needle bracing frame 8 is provided with the second detecting sensor, described second detecting sensor adopts Hall element, seat 10 upper surface that is slidably installed is provided with a magnetic material locating piece, described second detecting sensor is electrically connected with controller, detects sample introduction needle whether arrive most significant digit by the second sensor and magnetic material locating piece.Storage rotating disk 3 edge of described sample tube conveying device 19 is fixed with a magnetic material locating piece, the initial position mounting groove place storing rotating disk 3 is provided with the first detecting sensor, first detecting sensor adopts Hall element, described first detecting sensor is connected with controller, and the first detecting sensor and magnetic material locating piece detect the test tube storing initial position on rotating disk 3.
Principle of work of the present utility model:
Whether initialization: lifting motor 7 rotates the top that sample introduction needle clamps cantilever 14, sample introduction needle 1 rises to sample introduction needle bracing frame 8 driving the seat 10 that is slidably installed, tubular shaft 12, insulation, detect sample introduction needle bracing frame 8 by the second sensor and outreach; Whether drive motor 5 rotates and drives initial bit test tube on storage rotating disk 3 to rotate immediately below arrival sample introduction needle 1, detect initial bit test tube arrived below sample introduction needle 1 by first sensor.
During work: positioning sample grade, drive motor 5 rotates and drives storage rotating disk 3 to arrive the sample position of specifying.Lifting motor 7 rotates and drives sample introduction needle 1 to decline, and detects in sample introduction needle 1 decline process to liquid level.After liquid level being detected, the decline step number arranged by controller continues the suction sample position declined.Inhale after sample completes, lifting motor 7 drives sample introduction needle 1 to be moved upwards up to and fixing arranges step number to stock layout position.Return etc. the sample after to be detected and be discharged to sample tube.After completing detection.Lifting motor 7 drives sample introduction needle 1 to rise to initial most significant digit.Complete one-time detection.
The utility model detection method after liquid level being detected is not stop immediately, but according to the suction amount pre-seted number carry out continuing movement step number arrange, the step number of movement is determined by the pitch and segmenting of lifting motor 7.In testing process, sample introduction needle declines, and after in conduction, pipe 1-1 lower end extension divides and touches liquid level, the data detected are unchanged, when conducting electricity after outer tube 1-3 touches liquid level, and the change of sense data.Judge whether to touch liquid level by variable quantity.After liquid level being detected, according to inhale sample number, adjustment sample introduction needle decline height.As long as be stranded the amount of liquid that this ensures enough suction samples, be not just drawn back into the other one deck liquid in test tube, the utility model is namely convenient inhales sample, reduces again the step of artificial sample separation, reduces the labour intensity of operating personnel.
Claims (9)
1. one kind identifies the sampling system of liquid level automatically, comprise frame (6), sample tube conveying device (19), described frame (6) is installed lifting motor (7), it is characterized in that: described frame (6) is provided with a sample introduction needle jacking gear (18) driven by lifting motor (7), described sample introduction needle jacking gear (18) is provided with sample introduction needle clamping cantilever (14) of an insulation, the elongated end of the sample introduction needle clamp arm (14) of described insulation is fixedly clamped one for detecting the sample introduction needle (1) of liquid level, sample introduction needle (1) is positioned at the top of sample tube conveying device (19), the described sample introduction needle (1) for detecting liquid level comprises pipe (1-1) in conduction, conduction outer tube (1-3), insulation course (1-2) is provided with between pipe (1-1) and conduction outer tube (1-3) in described conduction, in conduction, the liquid feeding end of pipe (1-1) extends conduction outer tube (1-3) lower end, in described conduction, pipe (1-1) connects negative electrode by wire, described conduction outer tube (1-3) connects positive electrode by wire, in described conduction, pipe (1-1) upper end is used for being connected by insulated conduit with sampling pump, one controller (16) is electrically connected with the drive motor (5) of sample introduction needle (1), sample tube conveying device, lifting motor (7) and sampling pump (17) respectively, described controller (16) for receive sample introduction needle (1) liquid level signal after the drive motor (5) of Quality control test tube conveying device, lifting motor (7) and sampling pump (17) work respectively.
2. the sampling system of automatic identification liquid level according to claim 1, it is characterized in that: described controller (16) comprises microprocessor, power circuit, sample introduction needle signal circuit, oscillating circuit and reset and start-up circuit, described power circuit is electrically connected with microprocessor and sample introduction needle signal circuit respectively, described sample introduction needle signal circuit, oscillating circuit, reset and start-up circuit are electrically connected with microprocessor respectively, described sample introduction needle signal circuit is for gathering test tube liquid level signal, described power circuit is powered to microprocessor and sample introduction needle signal circuit, whether described oscillating circuit touches liquid level for detecting sample introduction needle, and send to microprocessor, described reset and start-up circuit are used for making microprocessor recovery arrive initial state, the test tube liquid level signal that described microprocessor is used for receiving carries out AD conversion, analyze liquid level signal.
3. the sampling system of automatic identification liquid level according to claim 2, it is characterized in that: described sample introduction needle signal circuit comprises crystal oscillator YIA, electric capacity C14, filter capacitor Y2, junction block J3, rectifier D2, computing follower U3, electric capacity C15, electric capacity C16 and resistance R5, the positive source VCC pin of described crystal oscillator YIA is electrically connected with power circuit, the power cathode GND pin ground connection of crystal oscillator YIA, the NC pin of oscillator YIA is empty pin, the output terminal OUT pin of crystal oscillator YIA is connected with one end of electric capacity C14, the other end of electric capacity C14 respectively with one end of filter capacitor Y2, 1 pin of junction block J3 connects, 1 pin of junction block J3 is connected with the conduction outer tube (1-3) of sample introduction needle, manage (1-1) in 2 pin of junction block J3 and the conduction of sample introduction needle to be connected, the other end of filter capacitor Y2 is connected with one end of rectifier D2, the other end of rectifier D2 respectively with the positive terminal of electric capacity C15, the in-phase input end of computing follower U3 connects, the negative pole end ground connection of electric capacity C15, the inverting input of computing follower U3, output terminal is connected with one end of electric capacity C16 and resistance R5 respectively, the other end ground connection of electric capacity C16 and resistance R5: the electric signal that described crystal oscillator YIA exports passes through electric capacity C14 through junction block J3 to sample introduction needle dividing potential drop, and by filter capacitor Y2 filtering, rectifier D2 rectification, computing follower U3 follows, send to microprocessor.
4. the sampling system of automatic identification liquid level according to claim 1, is characterized in that: described conduction outer tube (1-3) outer wall is provided with hydrophobic coating, and in described conduction, the downward development length of pipe (1-1) is 2 ~ 5mm.
5. the sampling system of the automatic identification liquid level according to claim 1 or 4, is characterized in that: described insulation course (1-2) adopts insulation tube, and the length of described insulation tube is identical with the length of managing (1-1) in conduction.
6. the sampling system of the automatic identification liquid level according to claim 1 or 4, is characterized in that: in described conduction, pipe (1-1) all adopts stainless-steel tube with conduction outer tube (1-3).
7. the sampling system of automatic identification liquid level according to claim 1, it is characterized in that: described sample introduction needle jacking gear (18) comprises sample introduction needle bracing frame (8), guide pole (9), the seat that is slidably installed (10) and tubular shaft (12), the two ends up and down of described sample introduction needle bracing frame (8) are respectively equipped with support platform (8-1) and lower support platform (8-2), upper and lower horizontal support platform are respectively equipped with through hole (8-3), described guide pole (9) is fixed between the upper and lower support platform of sample introduction needle bracing frame (8), described in the seat (10) that is slidably installed be arranged on guide pole (9) by clutch shaft bearing (11), the axle of described lifting motor (7) is straight up through the through hole of lower support platform (8-2), the motor nut (15) of lifting motor (7) is connected with the seat that is slidably installed (10), described tubular shaft (12) empty set is on the axle of lifting motor (7), tubular shaft (12) lower end is fixedly connected on the seat that is slidably installed (10), the top of tubular shaft (12) is arranged in the upper support platform (8-1) of sample introduction needle bracing frame (8) by the second bearing (13), and upwards extend and upper support platform (8-1), one end that the upper end of described tubular shaft (12) clamps cantilever (14) with the sample introduction needle of insulation is connected.
8. the sampling system of the automatic identification liquid level according to claim 1 or 7, is characterized in that: described lifting motor (7) adopts linear stepping motor.
9. the sampling system of automatic identification liquid level according to claim 1, it is characterized in that: described sample tube conveying device (19) comprises support for rotary disc (4), stores rotating disk (3) and drive motor (5), described drive motor (5) is arranged on support for rotary disc (4), the output shaft of drive motor (5) upwards, drive motor (5) is connected with storage rotating disk (3) by shaft coupling, and described storage rotating disk (3) is circumferentially provided with some mounting grooves inserted for test tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520502489.2U CN204832222U (en) | 2015-07-13 | 2015-07-13 | Automatic sampling system of discernment liquid level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520502489.2U CN204832222U (en) | 2015-07-13 | 2015-07-13 | Automatic sampling system of discernment liquid level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204832222U true CN204832222U (en) | 2015-12-02 |
Family
ID=54689809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520502489.2U Expired - Fee Related CN204832222U (en) | 2015-07-13 | 2015-07-13 | Automatic sampling system of discernment liquid level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204832222U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353227A (en) * | 2016-08-24 | 2017-01-25 | 重庆南方数控设备有限责任公司 | Blood sample feeding device for precise Westergren method erythrocyte sedimentation rate detector |
| CN106950390A (en) * | 2017-04-20 | 2017-07-14 | 合肥迪安医学检验所有限公司 | Biochemical instruments blood sample automatic sample detecting head |
| CN107290561A (en) * | 2017-07-19 | 2017-10-24 | 上海惠中医疗科技有限公司 | Sampling probe and the immune instrument of Full-automatic chemiluminescence including the sampling probe |
| CN109178875A (en) * | 2018-10-09 | 2019-01-11 | 张丽娜 | A kind of medical detection sample automatic sorting sorting storage device |
| CN112654872A (en) * | 2018-10-31 | 2021-04-13 | 株式会社日立高新技术 | Electrolyte analysis device |
| CN114441238A (en) * | 2020-11-04 | 2022-05-06 | 深圳市帝迈生物技术有限公司 | Sampling device, analyzer and sampling method for analyzer |
-
2015
- 2015-07-13 CN CN201520502489.2U patent/CN204832222U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353227A (en) * | 2016-08-24 | 2017-01-25 | 重庆南方数控设备有限责任公司 | Blood sample feeding device for precise Westergren method erythrocyte sedimentation rate detector |
| CN106950390A (en) * | 2017-04-20 | 2017-07-14 | 合肥迪安医学检验所有限公司 | Biochemical instruments blood sample automatic sample detecting head |
| CN107290561A (en) * | 2017-07-19 | 2017-10-24 | 上海惠中医疗科技有限公司 | Sampling probe and the immune instrument of Full-automatic chemiluminescence including the sampling probe |
| CN107290561B (en) * | 2017-07-19 | 2019-07-09 | 上海惠中医疗科技有限公司 | Instrument is immunized in sampling probe and Full-automatic chemiluminescence including the sampling probe |
| CN109178875A (en) * | 2018-10-09 | 2019-01-11 | 张丽娜 | A kind of medical detection sample automatic sorting sorting storage device |
| CN112654872A (en) * | 2018-10-31 | 2021-04-13 | 株式会社日立高新技术 | Electrolyte analysis device |
| CN114441238A (en) * | 2020-11-04 | 2022-05-06 | 深圳市帝迈生物技术有限公司 | Sampling device, analyzer and sampling method for analyzer |
| CN114441238B (en) * | 2020-11-04 | 2023-07-18 | 深圳市帝迈生物技术有限公司 | Sampling device, analyzer and sampling method for analyzer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204832222U (en) | Automatic sampling system of discernment liquid level | |
| CN201497691U (en) | Automatic detecting device for closed blood viscosity measurement | |
| CN102661888B (en) | Uniformly mixing method and device for whole blood automatic layer absorbing sample suitable for hemorrheology detection | |
| CN107709958B (en) | Sampling mechanism, air suction detection method thereof and sample analyzer | |
| CN201429621Y (en) | Fully automatic sampling instrument | |
| CN205599185U (en) | Full -automatic liquid machine of getting | |
| CN208313886U (en) | The flow path system of biosensor analysis instrument | |
| CN203455354U (en) | Automatic liquid level following device for liquid taking operation of automatic sampler | |
| CN114047274A (en) | Separation and extraction system for nuclides in radioactive sample | |
| CN201983833U (en) | Liquid level detection device of electrolyte analyzer | |
| CN204302248U (en) | A kind of being suitable for is enclosed in the ion chromatography apparatus used in glove box | |
| CN201697681U (en) | Light control metering device | |
| CN106770908A (en) | A kind of multi-functional titrator of high flux and application method | |
| CN203148516U (en) | Trace reagent liquid level detecting device for immunohistochemical stainer | |
| CN207366410U (en) | A kind of integrated form sample pre-treatment device with discharging to connection function | |
| CN205301258U (en) | Full -automatic transformer oil chromatogram degasification sampling device | |
| CN212722834U (en) | High-precision low-power water quality online analyzer | |
| CN203672885U (en) | Automatic circulation sample loading device of test tube coating method radioimmunoassay analyzer | |
| CN2814396Y (en) | Fluid viscosity measuring device based on adding sample capillary tube | |
| CN202676719U (en) | Marking device applied to recovery detection | |
| CN103162770B (en) | Method and device of trace reagent liquid level detection used for an immunohistochemical staining machine | |
| CN208334395U (en) | Detecting liquid level tracking device for Flow Analyzer | |
| CN207133086U (en) | A kind of overlying laden water collecting device assisted layered for profile lead | |
| CN213715242U (en) | On-chip laboratory detection device | |
| CN207991632U (en) | Level detection Destaticizing device for biochemical analysis device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |