CN207133305U - It is a kind of to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis - Google Patents

Abstract

It is used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis the utility model discloses a kind of, including sampling needle and swab, the sampling needle is fixedly installed on sampling needle rack, the sampling needle rack is fixedly connected with substrate, swab sliding equipment and sample cell hoisting mechanism are provided with the substrate, the swab is connected with swab sliding equipment, the sample cell is positioned on sample cell hoisting mechanism, the sample cell hoisting mechanism is lifted up in the presence of drive mechanism, in lifting process, the sample cell upper end opening portion is fitted close to form sealing and jack up swab with swab bottom, the sample cell hoisting mechanism and swab sliding equipment are synchronized with the movement, the sample cell remains opposing seal state with swab during tight fit is synchronized with the movement.The utility model can complete the relative movement of swab and sampling needle simultaneously and position is controlled, the absorption of sample is shifted in sample cell, can complete sample introduction, cleaning and the disengaging of full automatic sample cell tube.

Description

It is a kind of to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis

Technical field

The utility model belongs to blood cell analysis equipment technical field, more particularly to a kind of to be used for sample in cell analysis Pipe is lifted and the automatic sample handling system of cleaning.

Background technology

In medical science vitro diagnosis assays instrument, such as in blood cell analyzer and stream type cell analyzer, typically make The cell in sample is constrained to unicellular fluid with flow focusing art, and measure cell successively it is single flow through quartz flow room or Pulse signal caused by person's micropore（Including optical scattering, fluorescence signal or resistance antinoise signal）, and by electronic system to difference The pulse signal of amplitude and width carries out Information Statistics and analysis.The diagnostic result of these cytoanalyzes, it is that conditions of patients enters Row diagnosis and the important step of analysis, can directly instruct the development of subsequent medical behavior.

According to difference of the variety classes haemocyte in terms of physics and biochemical property, it is thin Coulter principle, streaming can be based on Born of the same parents' art is carried out the differentiation and counting of cell category using modes such as cell dyeing, light scattering, electrical impedance, carried in different system Each application messages such as blood supply cell five is classified, immunophenotyping, tumour ploidy analysis and cell factor.In these cytoanalyzes When carrying out diagnostic analysis, it is necessary first to by sample sampling device from heparin tube or test tube, after drawing a certain amount of fluorescence labeling Blood or the sample such as cell, and by sample introduction capillary or sampling needle, the sample of absorption is injected into analysis cell or flow chamber, and Recognized successively by instrument detection.Therefore how in user's placement sample cell（Including heparin tube or test tube）Afterwards, automatically to sample Carry out the primary goal that transfer is sample sampling device.

Simultaneously from test tube after the sample such as draw blood, cell, it can be stayed in sampling needle inner and outer surfaces and sample feeding passage Lower residual, it is necessary to which the blood sample or cell of these residuals are cleaned up and avoided to next before gathering next sample and analyzing The detection of individual sample causes cross pollution.Current common principle is using cleaning fluid flushing and collection device（Hereinafter referred to as " swab "）, as Patent No. US 5,408,891 U.S. patents and applications number for 200610021359.2, Swab structure disclosed in 201210222699.7 Chinese patent, this three parts of bibliography be described in detail each cavity of swab, The detailed design of inlet and leakage fluid dram, but provide swab, sampling needle and test tube up and down relatively move structure with Scheme.

In addition for the clean consideration with safety of medicine equipment, need to ensure during sample loading no liquid splash and on Sample mechanical structure is to medical personnel's not damaged.As Application No. 201210222699.7 Chinese patent in, it is proposed that band baffle ring Loading needle construction be used to avoid to steep the pollution to swab with vim and vigour in test tube；But it is sampling needle during the sample introduction in the document Quickly move up and down, larger puncture potential safety hazard be present, and have no the disclosure for the structure that gets sample.

Therefore, relative movement and upper-lower position control, the completion sample cell of swab and sampling needle how are completed simultaneously The absorption of middle sample is shifted and ensures that no liquid is splashed without potential safety hazard, turns into those skilled in the art's technical problem to be solved. If full automatic cell sample sample introduction, cleaning and detachment system can be designed, the sample of sampling needle surfaces externally and internally residual is carried out Cleaning, and by rationally setting the characteristic for ensureing that cost is cheap and easy to use, flow cytometer and haemocyte point will be caused The analytical instrument such as analyzer have more the market competitiveness.

Utility model content

Goal of the invention of the present utility model is：For above-mentioned problem, there is provided one kind can be completed full automatic Sample introduction, cleaning and the disengaging of sample cell tube, and what sampling needle surfaces externally and internally residual sample was cleaned is used for cell analysis The automatic sample handling system of middle sample cell lifting and cleaning.

What the technical solution of the utility model was realized in：It is a kind of to be used for what sample cell in cell analysis was lifted and cleaned Automatic sample handling system, including sampling needle and swab, it is characterised in that：The sampling needle is fixedly installed on sampling needle rack, institute State sampling needle rack to be fixedly connected with substrate, be provided with swab sliding equipment and sample cell hoisting mechanism on the substrate, The swab is connected with swab sliding equipment, and the sample cell is positioned on sample cell hoisting mechanism, and the sampling needle is passed through and wiped Son and stretched in sampling process in sample cell, the sample cell hoisting mechanism is lifted up in the presence of drive mechanism； In lifting process, the sample cell upper end opening portion is fitted close to form sealing and jack up swab with swab bottom, described Sample cell hoisting mechanism and swab sliding equipment are synchronized with the movement, and the sample cell is with swab during tight fit is synchronized with the movement Remain opposing seal state.

Described in the utility model to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, it is described Extension spring is provided with swab sliding equipment, described extension spring one end is connected with swab sliding equipment, and its other end connects with base plate bottom Connect, the extension spring is in extended state during sample cell and swab are synchronized with the movement.

Described in the utility model to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, it is described Stopper slot is provided with substrate, along swab sliding equipment glide direction, is provided with the swab sliding equipment and stopper slot The loading baffle plate of corresponding matching, the extension spring upper end are connected with loading baffle plate, the extension spring pin connection of its lower end and base plate bottom, when When the swab sliding equipment is in extreme lower position with sample cell hoisting mechanism, the sample cell is in swab departs from shape State, and sampling needle lower end needle tip is placed in swab.

Described in the utility model to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, it is described Fixed connecting rod, the fixed connecting rod lower end and sample cell elevator are provided between swab sliding equipment and sample cell hoisting mechanism Structure is fixedly connected, and the vertical chute, the vertical chute and the slip on swab sliding equipment are provided with the fixed connecting rod Lug boss is correspondingly slidably matched, and when the sample cell hoisting mechanism is in extreme lower position, the slide protrusion portion is positioned at fixation The top position of the vertical chute on connecting rod.

It is described in the utility model to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, wipe described in it Sub- sliding equipment includes swab sliding block composition and swab support frame, and the swab support frame and loading baffle plate are respectively fixedly connected with The both ends of swab sliding block composition, the swab are fixedly connected on the end of swab support frame；The sample cell hoisting mechanism bag Sample cell sliding block composition and sample cell lifting arm are included, the sample cell sliding block composition is connected by connection component with drive mechanism, The sample cell lifting arm and connection component are respectively fixedly connected with to be placed in the both ends of sample cell sliding block composition, the sample cell In the end of sample cell lifting arm, the swab sliding block composition and sample cell sliding block composition are slidably arranged in are fixed on base respectively On line slideway module on plate.

It is described in the utility model to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, wipe described in it Sub- sliding block composition is made up of upper rail sliding block and top shoe, and the upper rail sliding block is slidably disposed on line slideway module On, the top shoe is fixed together with upper rail sliding block, and the top shoe upper end is fixedly connected with swab support frame, The top shoe bottom is fixedly connected with loading baffle plate, and the slide protrusion portion is fixedly connected on top shoe；The sample Pipe sliding block composition is made up of lower guideway sliding block and sliding block, and the lower guideway sliding block is slidably disposed on line slideway module On, the sliding block is fixed together with lower guideway sliding block, and the sliding block upper end is fixedly connected with connection component, institute State sliding block bottom to be fixedly connected with sample cell lifting arm, the fixed connecting rod bottom is fixedly connected on sliding block.

It is described in the utility model to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, its described drive Motivation structure includes motor, synchronous cog belt, driving wheel and driven pulley, and the motor is fixedly connected on substrate, The clutch end connection of the driving wheel and motor, the driven pulley are rotatably arranged on substrate, the synchronization Around being connected on driving wheel and driven pulley, the synchronous cog belt passes through connection component and sample cell hoisting mechanism at cog belt both ends Sliding block links together, and the sample cell hoisting mechanism is synchronized with the movement with synchronous cog belt.

It is described in the utility model to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, its described company Connected components include loading belt pad and belt locking plate, and the loading belt pad is fixedly connected on the upper end of sliding block, institute State loading belt pad and belt locking plate is oppositely arranged and synchronous cog belt is clamped in into centre, on the substrate, lower part Photoelectric sensor is not provided with, and the belt locking plate coordinates with corresponding photoelectric sensor, for judgement sample pipe hoisting mechanism Movement position.

It is described in the utility model to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, wipe described in it Attached bag includes the swab body that center is provided with cavity, and the cavity of the swab body central is by upper chamber, lower cavity and company The central through hole composition of logical upper chamber and lower cavity, the diameter of the upper chamber and lower cavity are more than central through hole Aperture, i.e., the overall structure of described swab body central cavity are in the dumbbell structure of big at both ends and small in middle, the sampling needle External diameter is less than the aperture of central through hole, and the upper chamber connects with sewer pipe, and the lower cavity connects with lotion pipeline, works as institute State sampling needle pass through swab body central cavity when, for being cleaned to the outer wall of sampling needle, when the pin of the sampling needle When point is in upper chamber, it is used to clean the inwall of sampling needle by back flush mode.

Described in the utility model to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, it is described Blocked up on the swab that swab body both ends are separately provided for closing swab central cavity and son is blocked up under son and swab, it is described Son is blocked up on swab to be arranged on the swab of swab body upper surface formation on round platform, and son is blocked up on the swab and is matched somebody with somebody with round platform on swab Close to be formed and be used for ring-type Access Division with the swab support frame end fixing hole corresponding matching of swab sliding equipment, under the swab Stifled son is arranged on swab body lower surface, and formed with concave arc structure, the concave arc and sample of son are blocked up under the swab Pipe upper end opening portion cooperatively forms sealing structure, is blocked up on the swab under son and swab and is separately provided for sampling on stifled son The central through hole that pin passes through.

The utility model is directed to a kind of sampling system for being automatically performed the lifting of sample cell in cell analysis and cleaning, It utilizes the mode that sampling needle is fixed, and passes through the phase interworking of swab, sample cell, swab sliding equipment and sample cell hoisting mechanism Close and the position of relative movement controls, full automatic sample cell tube sample introduction, cleaning and detachment function can be completed.This practicality is new Type terminal with compact integral structure, and sample pin scavenging period has been saved, detection efficiency is improved, is only completed with a drive mechanism The precision-fit of two movable parts, and ensure that the cheap and easy to use characteristic of cost.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is fractionation structural representation of the present utility model.

Fig. 3 is the structural representation of substrate in the utility model.

Fig. 4 is to be provided with line slideway module and the schematic diagram of drive mechanism in the utility model on substrate.

Fig. 5 is the structural representation of swab sliding equipment in the utility model.

Fig. 6 is the structural representation of sample cell hoisting mechanism in the utility model.

Fig. 7 is that swab sliding equipment is not having extension spring and fixed connecting rod limitation with sample cell hoisting mechanism in the utility model When respectively be located at high-low limit position structural representation.

Fig. 8 and Fig. 9 is the structural representation of swab in the utility model.

Marked in figure：1 is sampling needle, and 2 be swab, and 3 be sampling needle rack, and 4 be substrate, and 5 be swab sliding equipment, and 6 are Sample cell hoisting mechanism, 7 be sample cell, and 8 be drive mechanism, and 9 be extension spring, and 10 be loading baffle plate, and 11 be fixed connecting rod, and 12 be cunning Dynamic lug boss, 13 be line slideway module, and 14 be loading belt pad, and 15 be belt locking plate, and 16 be clamp set, and 21 be swab sheet Body, 22 be upper chamber, and 23 be lower cavity, and through hole centered on 24,25 be sewer pipe, and 26 be lotion pipeline, and 27 be to be blocked up on swab Son, 28 be that son is blocked up under swab, and 29 be round platform on swab, and 41 be stopper slot, and 51 be swab support frame, and 52 be upper rail sliding block, 53 It is sample cell lifting arm for top shoe, 61,62 be lower guideway sliding block, and 63 be sliding block, and 81 be motor, and 82 be synchronizing jugged Band, 83 be driving wheel, and 84 be driven pulley, and 111 be the vertical chute.

Embodiment

Below in conjunction with the accompanying drawings, the utility model is described in detail.

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining The utility model, it is not used to limit the utility model.

As shown in figures 1 to 6, it is a kind of to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, including sampling Pin 1 and swab 2, the sampling needle 1 are fixedly installed on sampling needle rack 3, and the sampling needle rack 3 is fixedly connected with substrate 4, The swab 2 is used for the upper port of sealed sample pipe 7 in the uphill process of sample cell 7, and sampling needle 1 is carried out during decline The cleaning of inside and outside wall, in the present embodiment, the sampling needle 1 are transferred to flow chamber or analysis cell as solution in sample cell 7 Fluid passage, the clamp opened or closed the set 16 for controlling sample loading pipeline is provided with sampling needle rack 3, it is described The fixation that needle rack 3 is used for sampling needle 1 and clamp set 16 is sampled, more specifically, the sampling needle 1 can be inverted L-shaped cylinder Shape hollow structure, comprising vertical section and horizontal segment, wherein vertical section is used to insert the bottom of sample cell 7 progress loading, the sampling The vertical segment length of pin 1 is slightly longer than the height of sample cell 7, ensures that the needle point of sampling needle 1 can touch the bottom of sample cell 7, it is horizontal Section can be connected to pinch valve 16 by rubber tube, and for controlling opening and the closing of sample liquids passage, the sampling needle 1 is whole Remained static during individual auto injection, sample cell 7 lifted and the cleaning process of sampling needle 1 in, the sampling needle 1 uses Fixed mode, it effectively prevent the issuable personnel's harm in high-speed motion of sharp sampling needle 1.

Wherein, be provided with swab sliding equipment 5 and sample cell hoisting mechanism 6 on the substrate 4, the swab 2 with Swab sliding equipment 5 is connected, and the sample cell 7 is positioned on sample cell hoisting mechanism 6, is set on the swab sliding equipment 5 Extension spring 9 is equipped with, described one end of extension spring 9 is connected with swab sliding equipment 5, and its other end is connected with the bottom of substrate 4, the sampling needle 1 passes through swab 2 and is stretched in sampling process in sample cell 7, preferably extends into the inner bottom part of sample cell 7, the sample cell and carries Mechanism 6 is risen to be lifted up in the presence of drive mechanism 8, in lifting process, the upper end opening portion of sample cell 7 and swab 2 Bottom is fitted close to form sealing and jack up swab 2, and the sample cell hoisting mechanism 6 and swab sliding equipment 5 are synchronized with the movement, The sample cell 7 remains opposing seal state with swab 2 during close-fitting be synchronized with the movement, and the extension spring 9 exists Sample cell 7 is in extended state during being synchronized with the movement with swab 2, to ensure the sealing reliability of sample cell and swab, simultaneously The active force resetted downwards can also be provided for swab, and swab also can move to lower position under extension spring effect when power is off.Its In, sample cell is the containment device of cell analysis testing sample, is often the cylindrical tube structure of bottom hemispherical, it is included but not It is limited to medical vacuum heparin tube, flow cytometer showed 5mL sample cells and Bioexperiment 1~5mL centrifuge tubes etc..

In the present embodiment, the drive mechanism 8 includes motor 81, synchronous cog belt 82, the driving wheel of high torque 83 and driven pulley 84, the motor use stepper motor, the motor 81 is fixedly connected on substrate 4, described Driving wheel 83 is connected with the clutch end of motor 81, and the driven pulley 84 is rotatably arranged on substrate 4, described same The both ends of cog belt 82 are walked around being connected on driving wheel 83 and driven pulley 84, the synchronous cog belt 82 passes through connection component and sample cell The sliding block 63 of hoisting mechanism 6 links together, and the sample cell hoisting mechanism 6 is synchronized with the movement with synchronous cog belt 82.It is described Electric impulse signal is changed into angular displacement by stepper motor, and drives driving wheel to rotate, and the wheel face of driving wheel is starlike lobe structure, It can be formed with synchronous cog belt and be engaged cooperation, and then synchronous cog belt is moved up and down, and driven and be fixed to synchronous cog belt Sample cell hoisting mechanism be synchronized with the movement.Wherein, driven pulley is more specifically driven on substrate, the underface of driven pulley Wheel may include follower shaft, driven pulley sleeve column, plain washer and fixed screw.The line slideway module is parallel with synchronous cog belt Set, and be fixed to substrate-side panel, the linear slide for sample cell hoisting mechanism and swab sliding equipment.

As shown in figure 3, the overall L-shaped vertical page structure of substrate 4, its front panel is narrower to be used to consolidate automatic sample handling system To determine to instrument, and stretch out square region at top and be used for fixed sample needle rack 3 provided with connecting portion, its side panel is wider, if There is mounting hole to be used for the stretching of the output shaft of motor 81 and the fixation of motor 81, and be provided with and fixed for photoelectric sensor Square hole, be additionally provided with the connecting hole installed for line slideway module 13, wherein, on the substrate 4, along swab sliding equipment 5 glide directions are provided with stopper slot 41, and the stopper slot 41 is used for the motion section for limiting swab, in the swab sliding equipment The loading baffle plate 10 with the corresponding matching of stopper slot 41 is provided with 5, the upper end of extension spring 9 is connected with loading baffle plate 10, its lower end With the extension spring pin connection of the bottom of substrate 4, when loading baffle plate is moved to the bottom of ceiling substrate position groove, the swab skate machine Structure is in extreme lower position；Fixed connecting rod 11 is provided between the swab sliding equipment 5 and sample cell hoisting mechanism 6, it is described solid Determine the lower end of connecting rod 11 to be fixedly connected with sample cell hoisting mechanism 6, the vertical chute 111, institute are provided with the fixed connecting rod 11 State that the vertical chute 111 is corresponding with the slide protrusion portion 12 on swab sliding equipment 5 to be slidably matched, when the sample cell hoisting mechanism 6 when being in extreme lower position, and the slide protrusion portion 12 is located at the top position of the vertical chute 111 on fixed connecting rod 11, i.e., this When sample cell hoisting mechanism be the equal of to be articulated in by fixed connecting rod on swab sliding equipment.When the swab sliding equipment 5 When being in extreme lower position with sample cell hoisting mechanism 6, the sample cell 7 is in disengaged position with swab 2, in order to sample Pipe is changed, and now the lower end needle tip of sampling needle 1 is placed in swab 2, i.e., sampling needle uses fixed form and sampling Pin needle point whole process effectively prevent potential hazard of the sampling needle to operating personnel without exposure.

Wherein, the highest distance position that fixed connecting rod 11 is used to limit between swab sliding equipment 5 and sample cell hoisting mechanism 6 closes System, when n.s pipe 7 is put into, fixed connecting rod 11 is in stretching stress, and sample cell hoisting mechanism 6 is in lowest order；When When sample cell 7 is put into and starts lifting, fixed connecting rod 11 is in contraction and not stressed state, and swab sliding equipment 5 carries with sample cell The distance between mechanism 6 is risen to reduce.As shown in fig. 7, it is that swab slides when not adding extension spring 9 and fixed connecting rod 11 in the system The highest distance position and mutual position relationship that mechanism 5 and sample cell hoisting mechanism 6 are moveable to.

As shown in figure 5, the swab sliding equipment 5 includes swab sliding block composition and swab support frame 51, the swab branch Support 51 is used for the fixation of swab 2, specially square arm structure, and its larger one end is provided with swab fixing hole, and hole integrally approaches Circle, and a semicircle, lower edge and the clamp for being provided with standing shape are provided with distalmost end, swab 2, which can be proximally pushed into, will distally wipe Son 2 is fixed on swab support frame 51, and the swab support frame 51 and loading baffle plate 10 are respectively fixedly connected with swab sliding block group Into both ends, the swab 2 is fixedly connected on the end of swab support frame 51, wherein, the swab sliding block composition is led from above Rail sliding block 52 and top shoe 53 form, and are rectangular-shape structure, and the upper rail sliding block 52 is slidably disposed on straight line and led On rail module 13, the top shoe 53 is fixed together with upper rail sliding block 52, the upper end of top shoe 53 and swab Support frame 51 is fixedly connected, and the bottom of top shoe 53 is fixedly connected with loading baffle plate 10, and the slide protrusion portion 12 is fixed It is connected on top shoe 53, in the present embodiment, the loading baffle plate 10 is L-shaped structure, and its is long-armed to be fixed under top shoe 53 End, its galianconism length be longer than swab sliding block composition height, above and below sample during auto injection loading baffle plate galianconism In the stopper slot 41 of substrate.

It is whole automatic lifting and clear as shown in fig. 6, the sample cell hoisting mechanism 6 directly acts on the bottom of sample cell 7 The motor unit of journey is washed, it includes sample cell sliding block composition and sample cell lifting arm 61, the sample cell lifting arm 61 are used for The lifting of sample cell 7, is square arm structure, and its smaller one end is provided with lifting annulus, its circular ring structure and the bottom of sample cell 7 half Spherical cooperation, for the carrying and fixation of sample cell 7, the sample cell sliding block composition is connected by connection component with drive mechanism 8 Connect, the sample cell lifting arm 61 and connection component are respectively fixedly connected with the both ends of sample cell sliding block composition, the sample Pipe 7 is positioned over the end of sample cell lifting arm 61, wherein, the sample cell sliding block composition is by lower guideway sliding block 62 and sliding block 63 Composition, is rectangular-shape structure, the lower guideway sliding block 62 is slidably disposed on line slideway module 13, the downslide Block 63 is fixed together with lower guideway sliding block 62, and the upper end of sliding block 63 is fixedly connected with connection component, under described The bottom of sliding block 63 is fixedly connected with sample cell lifting arm 61, and the fixed bottom of connecting rod 11 is fixedly connected on sliding block 63 On.

Wherein, the connection component includes loading belt pad 14 and belt locking plate 15, and the loading belt pad 14 is in L Shape square body structure, its is long-armed to be fixed to the vertical upper end of sliding block, and its galianconism interfixes with belt locking plate 15, the belt 15 T-shaped flake structure of locking plate, the loading belt pad 14 are oppositely arranged with belt locking plate 15 and press from both sides synchronous cog belt 82 Tightly in centre, and then sample cell hoisting mechanism 6 is fixed on synchronous cog belt 82, in sample cell auto injection process about 7 In, synchronous cog belt 82 drives sample cell hoisting mechanism 6 to move, and U-shaped photoelectric transfer is provided with respectively in the upper and lower part of substrate 4 Sensor, the galianconism of the belt locking plate 15 coordinate with corresponding photoelectric sensor, the motion bit for judgement sample pipe hoisting mechanism 6 Put, the photoelectric sensor is attached in the square hole of substrate.

As shown in figure 8, the swab 2 is used for the cleaning of the inner and outer wall of sampling needle 1, and to sample cell during loading 7 motion path plays guiding and restriction effect, and the swab 2 includes the swab body 21 that center is provided with cavity, and its entirety is in Cylindrical structure, the cavity at the center of swab body 21 is by upper chamber 22, lower cavity 23 and connection upper chamber 22 Formed with the central through hole 24 of lower cavity 23, the diameter of the upper chamber 22 and lower cavity 23 is more than central through hole 24 Aperture, i.e., the overall structure of the described central cavity of swab body 21 is in the dumbbell structure of big at both ends and small in middle, the sampling needle 1 External diameter be slightly less than the aperture of central through hole 24, in the present embodiment, the diameter of the upper chamber and lower cavity is much larger than The external diameter of sampling needle, such as 3~7 times, and the diameter of central through hole is slightly larger than the external diameter of sampling needle, such as 0.25 mm；The upper chambers Body 22 connects with sewer pipe 25, and the lower cavity 23 connects with lotion pipeline 26, and the sewer pipe 25 and lotion pipeline 26 can For steel pipe, and waste liquid bore is more than the internal diameter of lotion pipeline.

When the sampling needle 1 passes through the central cavity of swab body 21, for being cleaned to the outer wall of sampling needle 1, Now cleaning fluid is ejected into sampling needle outer surface via lotion pipeline 26 under positive pressure effect with certain speed, and under Circulation is formed in portion's cavity 23, at the same time, sewer pipe 25 is connected to negative pressure, and the waste liquid after being cleaned under pressure differential effect is preferential Through central through hole 24 and enter upper chamber 22, and waste liquid barrel is sucked by sewer pipe；When the needle point of the sampling needle 1 is positioned at upper When in portion's cavity 22, it is used to clean the inwall of sampling needle 1 by back flush mode, now cleaning fluid acts in positive pressure Under, negative pressure is connected to via the inside of sampling needle 1 recoil to upper chamber 22, sewer pipe 25, waste liquid is preferential under pressure differential effect Waste liquid barrel is sucked by sewer pipe 25.

As shown in figure 9, it is separately provided for what swab central cavity was closed at the both ends of swab body 21 Blocked up on swab and son 28 is blocked up under son 27 and swab, blocking up son 27 on the swab is arranged on the swab of the upper surface of swab body 21 formation Block up son 27 on round platform 29, on the swab and cooperatively formed with round platform 29 on swab and be used for and the end fixing hole pair of swab support frame 51 The ring-type Access Division that should coordinate, son 28 is blocked up under the swab and is arranged on the lower surface of swab body 21, and formed with concave arc knot Structure, the concave arc of son 28 is blocked up under the swab and the upper end opening portion of sample cell 7 cooperatively forms sealing structure, on the swab Blocked up under stifled son 27 and swab on son 28 and be separately provided for the central through hole that sampling needle 1 passes through, son is blocked up on the swab and is wiped The central through hole aperture set on the lower stifled son of son is identical and coaxial with the aperture of central through hole in swab body, and the sampling needle can Sequentially pass through to block up on swab and subcenter through hole is blocked up under subcenter through hole, swab central through hole and swab, and moved up and down.

Operation principle of the present utility model：

Sample cell is lifted and sampling needle cleaning can be specifically divided into sample cell uphill process and the step of decline process two, wherein declining Process can be further divided into two sections, be specially：

Moved upwards by sample cell hoisting mechanism 6 in uphill process, and lift sample cell 7 and completed to the bottom of swab 2 Sealing, and then swab 2 is jacked up, now swab sliding block composition and sample cell sliding block form and not in contact with sample cell lifting arm 61, sample QC 7 and the three of swab 2, which are formed, to be fitted close.Swab 2 moves to a high position with sample cell hoisting mechanism 6, until sampling needle 1 The bottom of sample cell 7 is inserted, and sample transfer is completed by sampling needle 1.

In decline process first paragraph, sample cell hoisting mechanism 6 moves downward under the effect of stepper motor 81, and swab slides Mechanism 5 is because extension spring 9 is in extended state, by downward tensile force so that swab sliding equipment 5, which follows, to be moved downward. Swab 2 can start to clean the outer wall of sample pin 1 during downwards, as previously described.First paragraph declines to be transported in loading baffle plate 10 Terminate when moving to 41 bottom of stopper slot, now swab sliding equipment 5 moves to stop position, and now the needle point of sampling needle 1 is still located at In the upper chamber 22 of swab 2, can now recoil cleaning be carried out to the inwall of sampling needle 1.

In decline process second segment, swab sliding equipment 5 has moved to its stop position, and sample cell hoisting mechanism 6 is in step Stepper motor 81 continues to move downward under acting on, and maximum position, i.e. slip on swab sliding equipment 5 are moved to fixed connecting rod 11 Boss 12 is in the top opening position of the vertical chute 111 on fixed connecting rod.Now sample cell hoisting mechanism 6 moves to minimum Position, distance is maximum between swab sliding equipment 5 and sample cell hoisting mechanism 6, and sample cell 7 departs from the bottom of swab 2, user or instrument Device can freely take out sample cell.

During the uphill process of sample cell 7 and decline, sampling needle 1 is at least across a central through hole of swab 2 so that Sampling needle 1 and the central through hole automatic aligning of swab 2, it is ensured that the accuracy of the direction of motion, ensure sampling needle 1 from test tube 7 smoothly Draw liquid；On the other hand, 28 less bottom end openings of son are blocked up under swab can avoid the band vim and vigour bubble in test tube 7 from entering swab Swab 2 is polluted in 2 lower cavity 23, meanwhile, during swab loading, the effect of sample tube cover is also acts as, effectively Avoid liquid splash.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims (10)

1. a kind of be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, including sampling needle（1）And swab （2）, it is characterised in that：The sampling needle（1）It is fixedly installed on sampling needle rack（3）On, the sampling needle rack（3）With substrate （4）It is fixedly connected, in the substrate（4）On be provided with swab sliding equipment（5）And sample cell hoisting mechanism（6）, it is described to wipe Son（2）With swab sliding equipment（5）Connection, the sample cell（7）It is positioned over sample cell hoisting mechanism（6）On, the sampling needle （1）Through swab（2）And sample cell is stretched in sampling process（7）It is interior, the sample cell hoisting mechanism（6）In drive mechanism （8）In the presence of be lifted up, in lifting process, the sample cell（7）Upper end opening portion and swab（2）Bottom is fitted close Form sealing and by swab（2）Jack up, the sample cell hoisting mechanism（6）With swab sliding equipment（5）It is synchronized with the movement, the sample QC（7）With swab（2）Opposing seal state is remained during tight fit is synchronized with the movement.

2. according to claim 1 be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, its feature It is：In the swab sliding equipment（5）On be provided with extension spring（9）, the extension spring（9）One end and swab sliding equipment（5）Even Connect, its other end and substrate（4）Bottom connects, the extension spring（9）In sample cell（7）With swab（2）Locate during being synchronized with the movement In extended state.

3. according to claim 2 be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, its feature It is：In the substrate（4）Above, along swab sliding equipment（5）Glide direction is provided with stopper slot（41）, slided in the swab Mechanism（5）On be provided with and stopper slot（41）The loading baffle plate of corresponding matching（10）, the extension spring（9）Upper end and loading baffle plate （10）Connection, its lower end and substrate（4）The extension spring pin connection of bottom, when the swab sliding equipment（5）With sample cell elevator Structure（6）When being in extreme lower position, the sample cell（7）With swab（2）In disengaged position, and the sampling needle（1）Lower end Needle tip is placed in swab（2）It is interior.

4. according to claim 3 be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, its feature It is：In the swab sliding equipment（5）With sample cell hoisting mechanism（6）Between be provided with fixed connecting rod（11）, the fixation Connecting rod（11）Lower end and sample cell hoisting mechanism（6）It is fixedly connected, in the fixed connecting rod（11）On be provided with the vertical chute （111）, the vertical chute（111）With swab sliding equipment（5）On slide protrusion portion（12）It is corresponding to be slidably matched, when described Sample cell hoisting mechanism（6）During in extreme lower position, the slide protrusion portion（12）Positioned at fixed connecting rod（11）Upper the vertical chute （111）The top position.

5. according to claim 4 be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, its feature It is：The swab sliding equipment（5）Including swab sliding block composition and swab support frame（51）, the swab support frame（51）With Loading baffle plate（10）It is respectively fixedly connected with the both ends of swab sliding block composition, the swab（2）It is fixedly connected on swab support Frame（51）End；The sample cell hoisting mechanism（6）Including sample cell sliding block composition and sample cell lifting arm（61）, the sample QC sliding block composition passes through connection component and drive mechanism（8）Connection, the sample cell lifting arm（61）Distinguish with connection component It is fixedly connected on the both ends of sample cell sliding block composition, the sample cell（7）It is positioned over sample cell lifting arm（61）End, institute State swab sliding block composition and sample cell sliding block composition is slidably arranged in is fixed on substrate respectively（4）On line slideway module （13）On.

6. according to claim 5 be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, its feature It is：The swab sliding block composition is by upper rail sliding block（52）And top shoe（53）Composition, the upper rail sliding block（52）It can slide Line slideway module is arranged on dynamicly（13）On, the top shoe（53）With upper rail sliding block（52）It is fixed together, institute State top shoe（53）Upper end and swab support frame（51）It is fixedly connected, the top shoe（53）Bottom and loading baffle plate（10） It is fixedly connected, the slide protrusion portion（12）It is fixedly connected on top shoe（53）On；The sample cell sliding block composition is by lower guideway Sliding block（62）And sliding block（63）Composition, the lower guideway sliding block（62）It is slidably disposed on line slideway module（13）On, The sliding block（63）With lower guideway sliding block（62）It is fixed together, the sliding block（63）Upper end is consolidated with connection component Fixed connection, the sliding block（63）Bottom and sample cell lifting arm（61）It is fixedly connected, the fixed connecting rod（11）Bottom It is fixedly connected on sliding block（63）On.

7. according to claim 6 be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, its feature It is：The drive mechanism（8）Including motor（81）, synchronous cog belt（82）, driving wheel（83）And driven pulley（84）, The motor（81）It is fixedly connected on substrate（4）On, the driving wheel（83）With motor（81）Clutch end Connection, the driven pulley（84）It is rotatably arranged in substrate（4）On, the synchronous cog belt（82）Both ends are around being connected on driving wheel （83）And driven pulley（84）On, the synchronous cog belt（82）Pass through connection component and sample cell hoisting mechanism（6）Sliding block （63）Link together, the sample cell hoisting mechanism（6）With synchronous cog belt（82）It is synchronized with the movement.

8. according to claim 7 be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, its feature It is：The connection component includes loading belt pad（14）With belt locking plate（15）, the loading belt pad（14）It is fixed It is connected to sliding block（63）Upper end, the loading belt pad（14）With belt locking plate（15）It is oppositely arranged and by synchronous gear Shape band（82）Centre is clamped in, in the substrate（4）Upper and lower part is provided with photoelectric sensor, the belt locking plate respectively（15） Coordinate with corresponding photoelectric sensor, for judgement sample pipe hoisting mechanism（6）Movement position.

9. it is as claimed in any of claims 1 to 8 be used for cell analysis in sample cell lifting and cleaning automatically enter Sample system, it is characterised in that：The swab（2）The swab body of cavity is provided with including center（21）, the swab body（21） The cavity at center is by upper chamber（22）, lower cavity（23）And connection upper chamber（22）And lower cavity（23）Center Through hole（24）Composition, the upper chamber（22）And lower cavity（23）Diameter be more than central through hole（24）Aperture, i.e. institute State swab body（21）The overall structure of central cavity is in the dumbbell structure of big at both ends and small in middle, the sampling needle（1）It is outer Footpath is less than central through hole（24）Aperture, the upper chamber（22）With sewer pipe（25）Connection, the lower cavity（23）With Lotion pipeline（26）Connection, when the sampling needle（1）Through swab body（21）Central cavity when, for sampling needle（1）'s Outer wall is cleaned, when the sampling needle（1）Needle point be located at upper chamber（22）When interior, it is used for by back flush mode to sampling Pin（1）Inwall cleaned.

10. according to claim 9 be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis, its feature It is：In the swab body（21）Son is blocked up on the swab that both ends are separately provided for closing swab central cavity （27）It is sub with being blocked up under swab（28）, son is blocked up on the swab（27）It is arranged on swab body（21）Circle on the swab that upper surface is formed Platform（29）On, son is blocked up on the swab（27）With round platform on swab（29）Cooperatively form and be used for and swab sliding equipment（5）Wipe Sub- support frame（51）The ring-type Access Division of end fixing hole corresponding matching, son is blocked up under the swab（28）It is arranged on swab body （21）Lower surface, and formed with concave arc structure, son is blocked up under the swab（28）Concave arc and sample cell（7）Open upper end Oral area cooperatively forms sealing structure, and son is blocked up on the swab（27）It is sub with being blocked up under swab（28）On be separately provided for sampling Pin（1）The central through hole passed through.