The automatic continuous adjustable circulation injector of batch (-type)
Technical field
The utility model relates to the manufacturing of adjustable circulation injector, and the continuous adjustable circulation injector of particularly a kind of automatic batch (-type) is indispensable support equipment in liquid sample flow analysis and the examination of health care batch.
Background technology
Existing injector is the moving single step input mode of armrest, and promptly each sample introduction all will touch start button or pull starting switch with hand, and when medical institutions carried out the examination in enormous quantities of hundreds and thousands of samples, the testing staff felt to waste time and energy, efficient is very low.
The utility model content
The purpose of this utility model provides the continuous adjustable circulation injector of a kind of novel automatic batch (-type), to overcome the deficiencies in the prior art, the utility model has been broken the single step input mode, the existing capability that had both kept current injector, again can be according to testing staff's oneself custom, by control panel, sample introduction and quiescent interval have once been set up, the injector sample introduction that just can be automatically circulate intermittently, continuously.So just reach multi-functional machine, both made things convenient for testing, improved detection efficiency again greatly, simple structure, simple operation, safe and reliable, economical and practical, result of use is good.。
The utility model is to realize automatic intermittence, the sample introduction that circulates continuously by the following technical solutions: circuit adopts DLC (digital logic circuit), preset sample size and intermittently measure by control panel, make circuit produce two and preset decoded signal, wherein preset the sample introduction signal and carry out the logical operation of sample introduction, judge whether the two equates with the count decoding signal that writes down peristaltic pump work.If equate, illustrate that the sample introduction counting has arrived prevalue, so stop to send drive signal; If do not wait, then work on, continue the sample introduction counting, till two decoded signals equate; In a single day the logical operation circuit of sample introduction is judged two decoded signals and is equated, then sends to blocking circuit to start intermittently signal, and injector enters intermittently state and begins intermittently counting; When intermittence the count decoding signal when intermittently presetting decoded signal and equate, then Jian Xie logical operation circuit sends a signal that starts sample introduction again, so next the circulation begin, and so forth, till closing injector.
The utility model comprises that mainly control panel, panel circuit, logic control circuit, ring distributor, motor-driven circuit, peristaltic pump and power panel connect and compose successively, setting according to control panel, by the corresponding digital indication on the panel circuit drive controlling panel, and the generation corresponding signal is transferred to the logic control circuit, the CP pulse signal that is produced by the logic control circuit is transferred to ring distributor, remove to drive the stepper motor of peristaltic pump again by the motor-driven circuit, make peristaltic pump by predetermined value work; Whole direct current supply is provided by power panel.
Described control panel comprises following control element: the start-up circuit play button, relay indicating light, the halt circuit play button, pilot lamp quits work, increase and preset the sample injection time button, reduce and preset the sample injection time button, show the double figures sign indicating number pipe that presets sample injection time, increase and preset the quiescent interval button, reduce and preset the quiescent interval button, show and preset the one digit number sign indicating number pipe of quiescent interval, single step mode of operation button, single step mode of operation pilot lamp, automatically the batch (-type) sample introduction mode button that circulates continuously, batch (-type) continuous sample introduction pattern pilot lamp automatically dynamically shows the double figures sign indicating number pipe of actual sample injection time, the one digit number sign indicating number pipe that dynamically shows the actual quiescent interval is directly controlled the switch of peristaltic pump stepper motor work; Described control element is corresponding with the connection of panel circuit.
Described logic control circuit receives sample introduction and presets decoded signal with two of intermittences, and the dynamic sample introduction count decoding signal that sample introduction presets decoded signal and logic control circuit carries out logical operation, judges whether the two equates.If equate, illustrate that the sample introduction counting has arrived prevalue, then stop dynamic sample introduction counting, and stop to send the CP pulse to ring distributor; If do not wait, then work on, continue the sample introduction counting, till two decoded signals equate, equate in case judge two decoded signals, then to the intermittence of logic control circuit counter-decoder circuit send intermittently signal, injector enters intermittently state and begins intermittently counting; When intermittence, the count decoding signal equated with the decoded signal that presets the quiescent interval that is received, then send the signal of a startup job again to the sample introduction counter-decoder circuit, send the CP pulse to ring distributor simultaneously, so next circulation begins, and so forth, till closing injector.
Four belt counters of described ring distributor receive the CP pulse signal from logic control circuit, with its high two output terminal Q
3, Q
2Unsettled, low two output terminal Q
1, Q
0Signal send low two input end A with the binary-decimal code translator respectively
1, A
0, and with two high-order input end A
3, A
2Ground connection, then low four output terminal Y of binary-decimal code translator
0~Y
3Signal be the logic control signal of the stepper motor of peristaltic pump.
The utility model has been broken the single step input mode, has both kept the existing capability of current injector, can by control panel, once set up sample introduction and quiescent interval according to testing staff's oneself custom again, the injector sample introduction that just can be automatically circulate intermittently, continuously.So just reach multi-functional machine, both made things convenient for testing, improved detection efficiency again greatly, simple structure, simple operation, safe and reliable, economical and practical, result of use is good.
The novel examination in enormous quantities that is particularly suitable in the analysis of prophylactic liquid flow of this use, it has alleviated testing staff's labour intensity, work efficiency and accuracy have been improved, unit on probation comments: " the predeterminable multiple sample introduction program of this instrument; preestablish sample injection time, termination of pumping time and continuous sample introduction mode according to requirement of experiment; accuracy is good, can satisfy breadboard detection requirement.The on probation of this instrument saved a large amount of human and material resources and time, compares with original hand sampling, raises the efficiency more than 5 times, improves accuracy more than 4 times.”
Description of drawings
Fig. 1 is the utility model connection diagram.
Fig. 2 is the utility model control panel synoptic diagram.
Fig. 3 is the utility model logic control circuit functional-block diagram.
Fig. 4 is the utility model ring distributor circuit diagram.
Embodiment
Below with reference to accompanying drawing the utility model is further described.
As shown in the figure, the utility model is made up of control panel 1, panel circuit 2, logic control circuit 3, ring distributor 4, motor-drive circuit 5, peristaltic pump 6 and power panel 7, and tool housing is the general plastic box of instrument.During use, the inlet of the utility model peristaltic pump and the leakage fluid dram of analyser are coupled together with silicone tube; Energized is pressed the button 8 start-up circuit work on the control panel, and the pilot lamp 9 of its top is bright simultaneously; If when using automatically intermittently continuously the circulation input mode, can press the button 20 on the control panel earlier, the pilot lamp 21 of its top is bright simultaneously; By pressing increasing button 12, subtracting button 13 and preset sample injection time (in fact having set up the feed liquor amount), 14 preset values that show sample introduction of double figures sign indicating number pipe of " sample introduction "; By pressing increasing button 15, subtracting button 16 and preset the quiescent interval of " intermittently ", 17 of one digit number sign indicating number pipes show preset values intermittently; " motor switch " 24 on the control panel can directly be controlled the work of peristaltic pump stepper motor, in default " sample introduction " and " intermittently " process, can turn off this switch.After default finishing, in case connect " motor switch ", then sample introduction begins, double figures sign indicating number pipe 22 just dynamically shows sample injection time on the control panel simultaneously, by zero beginning, is that 1 accumulative total increases by step-length, equate that up to preset value then sample introduction finishes, intermittently begin with double figures sign indicating number pipe 14.After intermittently beginning, the one digit number sign indicating number pipe 23 on the control panel just dynamically shows the quiescent interval, also is by zero beginning, is that 1 accumulative total increases by step-length, till the preset value at intermittence with one digit number sign indicating number pipe 17 equates; Then begin next sample introduction circulation again, and so forth, till " pass " button of pressing on the control panel.At tempus intercalare, the testing staff can carry out the work of hyperphoric sample, and the operating frequency of quiescent interval according to the testing staff sets up on their own, and sample injection time is according to the requirement of sample feed liquor amount is set, this brings great convenience concerning large batch of screening.If single step sample introduction pattern then can be pressed the single step button 18 on the control panel 1, then a sample introduction once.
Referring to accompanying drawing 1, the injector that circulates continuously of the automatic batch (-type) among the figure comprises single step sample introduction pattern and circulation sample introduction pattern continuously intermittently automatically.It is characterized in that: by control panel 1 default sample introduction pattern, if continuous mode then reinitializes sample introduction and quiescent interval; Preset signal is input to panel circuit 2, and this circuit one is the signal that produces corresponding charactron on the drive controlling panel 1, and the 2nd, preset signal is transferred to logic control circuit 3; Carry out logical operation by logic control circuit 3 and judge, and send corresponding C P pulse signal to ring distributor 4; The output signal of ring distributor 4 is amplified through motor-drive circuit 5, drives the four phase step motor of peristaltic pump 6 again.If single step sample introduction pattern, logic control circuit 3 are just sent the CP pulse signal of single step work to ring distributor 4.
Referring to accompanying drawing 2, on control panel as shown in the figure, wherein 8 is play button, 9 is relay indicating light, 10 are the button that quits work, 11 for stopping pilot lamp, 12 is to increase to preset the button of sample introduction working time, 13 is to reduce to preset the button of sample introduction working time, 14 for showing the double figures sign indicating number pipe that presets sample injection time, 15 is to increase to preset the quiescent interval button, 16 is to reduce to preset the button of quiescent interval, and 17 is to show to preset the one digit number sign indicating number pipe of quiescent interval that 18 are single step mode of operation button, 19 are single step mode of operation pilot lamp, 20 are the automatic batch (-type) sample introduction mode button that circulates continuously, and 21 be automatic batch (-type) continuous sample introduction pattern pilot lamp, and 22 be the double figures sign indicating number pipe of dynamic actual sample introduction working time of demonstration, 23 is the one digit number sign indicating number pipe that dynamically shows the actual quiescent interval, and 24 is the switch of directly controlling the work of peristaltic pump stepper motor.
Referring to accompanying drawing 3, the logic control circuit among the figure is by dynamic sample introduction counting decoder 26, sample introduction logical-arithmetic unit 25, and dynamic intermittently counting decoder 28, intermittently logical-arithmetic unit 27 is formed.It is characterized in that: sample introduction logical-arithmetic unit 25 receives the decoded signal A that presets sample introduction that is produced by panel circuit 2, and this signal carries out logical operation with the signal A ' of dynamic counting decoder 26, judges whether the two equates; If equate, illustrate that counting has arrived prevalue, so stop dynamic sample introduction counting, and stop to send the CP pulse to ring distributor 4, at this moment, sample introduction stops, logical-arithmetic unit 25 produces and starts the intermittently signal A of counting decoder 28 simultaneously ", injector enters intermittently count status, and beginning is intermittently; Same intermittently logical-arithmetic unit 27 receives the decoded signal B that presets intermittence that is produced by panel circuit 2, and the signal B ' of this signal and dynamic intermittent counting decoder 28 carries out logical operation, judges whether the two equates; If equate, illustrate that intermittently numeration has arrived prevalue, so the dynamic intermittent counting stops, while is the signal B of the logical-arithmetic unit 27 generations startup the dynamic counting decoder 26 of sample introductions intermittently "; injector has begun a new circulation again; and so forth, automatically intermittence, auto injection ... till shut-off circuit work.
Referring to accompanying drawing 4, the ring distributor shown in the figure is made up of four belt counters 29 and binary-decimal code translator 30.It is characterized in that: four CP pulse signals that belt counter 31 receives from logic control circuit 3; With its high two output terminal Q
3, Q
2Unsettled, low two output terminal Q
1, Q
0Signal send low two input end A with binary-decimal code translator 30 respectively
1, A
0, and with two high-order input end A of binary-decimal code translator 30
3, A
2Ground connection, then its low four output terminal Y
0~Y
3Signal be the input signal of motor-driven circuit 5, and other output terminal Y
4~Y
9Unsettled.