CN203803522U - Automatic and continuous quantitative liquid adding instrument - Google Patents
Automatic and continuous quantitative liquid adding instrument Download PDFInfo
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- CN203803522U CN203803522U CN201420219331.XU CN201420219331U CN203803522U CN 203803522 U CN203803522 U CN 203803522U CN 201420219331 U CN201420219331 U CN 201420219331U CN 203803522 U CN203803522 U CN 203803522U
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- 239000007788 liquid Substances 0.000 title claims abstract description 181
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims description 16
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to an automatic and continuous quantitative liquid adding instrument. The automatic and continuous quantitative liquid adding instrument is provided with a cylinder, wherein the lower part of the cylinder is communicated with the upper part of a No.1 liquid pipe via a conduit; a valve I is arranged on a communicating pipeline of the cylinder and the lower part of a water tank; a valve II is arranged on the communicating pipeline of the cylinder and the lower part of a tank of liquid to be taken; the side of the cylinder is communicated with the upper part of a No.2 liquid pipe; the lower part of the No.2 liquid pipe is communicated with the lower part of a No.3 liquid pipe; the lower part of the No.1 liquid pipe is communicated with the lower part of the tank of liquid to be taken, and a valve III is arranged in the communicating position; a liquid outlet faucet extends outwards from the side at the lower part of the No.1 liquid pipe; a liquid receiving appliance is arranged at the lower part of the liquid outlet faucet and is vertically put on a liquid receiving plate. The automatic and continuous quantitative liquid adding instrument not only has a simple structure and is easy to manufacture but also can achieve automatic and continuous liquid transfer and transfer liquid quickly, has high precision, is not easy in splashing, brings great convenience to experimental tests, and is suitable to popularize and use in the experimental detection field.
Description
Technical field
the utility model relates to a kind of liquid-adding device using at experiment detection field, especially can realize the Automatic continuous quantitative liquid feeding instrument of automatic moving liquid.
Background technology
at present, in scientific research and Chemical Manufacture, often need to carry out analyzing and testing to solution, in the time pipetting liquid, conventionally use pipette, use rubber pipette bulb imbitition to graduation mark, and then quantitatively put into liquid receptacle ware.While pipetting by hand operation, the dry wet degree of finger can impact the precision of moving liquid, and it is slow to pipette the speed of liquid, is easy to cause liquid to spatter outward, causes result inaccurate.In experiment, companion specimens generally need to pipette repeatedly, and while moving liquid by hand continuously, efficiency is very low, can not ensure to pipette fast and accurately testing liquid.
Utility model content
low and move the inefficient problem of liquid in order to solve existing manual liquid-transfering device precision, the utility model provides a kind of Automatic continuous quantitative liquid feeding instrument, this Automatic continuous quantitative liquid feeding instrument is not only simple in structure, be easy to make, and can realize Automatic continuous and move liquid, move liquid quick, high and difficult outer the spattering of precision, bring great convenience to experiment test, be adapted at testing detection field and promote the use of.
the utility model solves the technical scheme that its technical problem adopts: this Automatic continuous quantitative liquid feeding instrument comprises tank, cylinder, liquid bath to be got, valve I, valve II, liquid pipe, fluid tap, liquid receptacle tool, valve III, liquid dish, No. two liquid pipes and No. three liquid pipes; This Automatic continuous quantitative liquid feeding instrument is provided with a square cylinder, the bottom of cylinder is communicated with a Ye Guan top by conduit, described cylinder is connected with the pipeline of tank bottom and on connecting pipe, is provided with valve I, cylinder is connected with the pipeline of liquid bath to be got bottom and on connecting pipe, is provided with valve II, valve I control wash water, valve II control liquid rinse to be got, and in the time of washing lotion and rinse, ensure that cylinder and a liquid pipe completely cut off; The side of cylinder is connected with No. two Ye Guan tops, and No. two Ye Guan bottom is communicated with No. three Ye Guan bottoms; A described Ye Guan bottom is communicated with the bottom of liquid bath to be got, and connectivity part is provided with valve III, the protruding fluid tap that is provided with of lower side of a liquid pipe, and the bottom of fluid tap is provided with liquid receptacle tool, and liquid receptacle tool is vertically placed on liquid dish; Described liquid dish is circular or square, can hold 6-12 liquid receptacle tool; The liquid pipe that described No. two liquid pipes are horizontal positioned, its volume is greater than the volume of a liquid pipe, before use, will be full of liquid to be got, and liquid level is concordant with the zero graduation of a liquid pipe; The volume of a described liquid Guan Yusan liquid pipe equates, in the same horizontal line and indicate scale; The volume of described cylinder is greater than the volume of a liquid pipe, and volume is not because environmental change changes.
the control circuit of this Automatic continuous quantitative liquid feeding instrument mainly comprises single-chip microcomputer, bridge driver, LCDs, voltage-stablizer, the model of described single-chip microcomputer is AT89C52, and this single-chip microcomputer has 40 pins, and wherein pin 18, pin 19 connect the two ends of 12MHZ crystal oscillator, and crystal oscillator is by ceramic disc capacitor C1 and capacitor C 2 ground connection of two 30PF, and this single-chip microcomputer is processed and calculated for signal, the pin 3 of single-chip microcomputer, pin 4, pin 5 are respectively by ground connection after key switch, and pin 3, pin 4, pin 5 are respectively by connect+24V of pull-up resistor R1, R2, R3 dc source simultaneously, described three key switches are for input signal, press expression state " 1 ", while not pressing, represent state " 0 ", effect is to set liquid range, the corresponding 5ml range of state 001, the corresponding 10ml range of state 010, the corresponding 25ml range of state 011, the corresponding 50ml range of state 100, the corresponding 100ml range of state 101, the model of described bridge driver is L298N, totally 15 pins, wherein connect+5V of pin 9 dc source, connect+9V of pin 4 dc source, pin 5, pin 6, pin 7 connects respectively the pin 39 of single-chip microcomputer, pin 35, pin 38, the pin 1 of bridge driver, pin 15, pin 8 ground connection, pin 2 and pin 3 connect two inputs of direct current generator M, effect is restriction direct current generator input voltage, two inputs of direct current generator M are connecting respectively Current Limiting Diodes D1, the anode of D2, Current Limiting Diodes D1, connect+9V of the negative electrode of D2 dc source, the residue pin of bridge driver is unsettled, this bridge driver is used for the rotation of drive motors M and realizes the opening and closing of valve III, the model of LCDs is 1602, this LCDs has 14 pins, wherein pin 4, pin 5, pin 6, pin 7, pin 8, pin 9, pin 10, pin 11, pin 12, pin 13, pin 14 is connected respectively the pin 1 of single-chip microcomputer, pin 5, pin 6, pin 21, pin 22, pin 23, pin 24, pin 25, pin 26, pin 27, pin 28, connect+5V of pin 1 dc source of LCDs, pin 2 ground connection the slide rheostat R14 by 20K Ω are connected with+5V dc source, pin 3 connects the sliding end of slip variable resistance, this LCDs can show needed liquid level scale clearly, the model of described voltage-stablizer is 7805, and this voltage-stablizer can be+5V dc source to be respectively equipment power supply by+9V dc source step-down, liquid level detection electrode connects the base stage of triode by the resistance of 220 Ω, the emitter stage of triode is by connect+9V of the resistance of 10K Ω dc source, the grounded collector of triode, the capacity earth that the base stage of triode is passed through, described liquid level detection electrode has 5, and representation level 1, water level 2, water level 3, water level 4 and 5, five liquid level detection electrodes of water level connect respectively pin 32, pin 33, pin 34, pin 36 and the pin 37 of single-chip microcomputer by resistance and triode respectively.
the job step of this Automatic continuous quantitative liquid feeding instrument is:
(1) to valve III setup control program, the liquid level information of No. three liquid pipes is given in the control program of valve III;
(2) open valve I, tank water outlet, cylinder is closed, and fluid tap fluid, washes;
(3) wash rear valve-off I, opened valve II, liquid bath fluid to be got, cylinder is closed, and carries out rinse;
(4), after rinse completes, valve-off II, enters and gets liquid flow process;
(5) wait wash waste liquor stream clean after, valve III is adjusted to feed liquor flow process, liquid to be got is because of potential difference feed liquor automatically, No. one liquid pipe advances the liquid in No. two liquid pipes in No. three, road liquid pipe by the cylinder being attached thereto;
(6) when the liquid level of No. three liquid pipes reaches setting value, SCM program by-pass valve control III is closed automatically, completes feed liquor flow process;
(7) on liquid dish, place liquid receptacle tool, by-pass valve control III can be got liquid continuously to allowing to connect liquid status.
the beneficial effects of the utility model are that this Automatic continuous quantitative liquid feeding instrument is not only simple in structure, is easy to make, and can realize Automatic continuous and move liquid, move liquid quick, high and difficult outer the spattering of precision, bring great convenience to experiment test, be adapted at testing detection field and promote the use of.
Brief description of the drawings
below in conjunction with drawings and Examples, the utility model is described in further detail.
fig. 1 is structural principle schematic diagram of the present utility model.
fig. 2 is control circuit principle schematic of the present utility model.
in figure, 1. tank, 2. cylinder, 3. liquid bath to be got, 4. valve I, 5. valve II, a 6. liquid pipe, 7. fluid tap, 8. liquid receptacle tool, 9. valve III, 10. liquid dish, 11. No. two liquid pipes, 12. No. three liquid pipes.
Detailed description of the invention
in the drawings, this Automatic continuous quantitative liquid feeding instrument comprises tank 1, cylinder 2, liquid bath to be got 3, valve I 4, valve II 5, liquid pipe 6, fluid tap 7, liquid receptacle tool 8, valve III 9, liquid dish 10, No. two liquid pipes 11 and No. three liquid pipes 12; This Automatic continuous quantitative liquid feeding instrument is provided with a square cylinder 2, the bottom of cylinder 2 is communicated with the top of a liquid pipe 6 by conduit, described cylinder 2 is connected with the pipeline of tank 1 bottom and on connecting pipe, is provided with valve I 4, cylinder 2 is connected with the pipeline of liquid bath to be got 3 bottoms and on connecting pipe, is provided with valve II 5, valve I 4 is controlled wash water, valve II 5 is controlled liquid rinse to be got, and in the time of washing lotion and rinse, ensures that cylinder 2 and a liquid pipe 6 completely cut off; The side of cylinder 2 is connected with the top of No. two liquid pipes 11, and the bottom of No. two liquid pipes 11 is communicated with the bottom of No. three liquid pipes 12; The bottom of a described liquid pipe 6 is communicated with the bottom of liquid bath 3 to be got, connectivity part is provided with valve III 9, the protruding fluid tap 7 that is provided with of lower side of a liquid pipe 6, the bottom of fluid tap 7 is provided with liquid receptacle tool 8, and liquid receptacle tool 8 is vertically placed on liquid dish 10; Described liquid dish 10 is circular or square, can hold 6-12 liquid receptacle tool 8; The liquid pipe that described No. two liquid pipes 11 are horizontal positioned, its volume is greater than the volume of a liquid pipe 6, before use, will be full of liquid to be got, and liquid level is concordant with the zero graduation of a liquid pipe 6; A described liquid pipe 6 equates with the volume of No. three liquid pipes 12, in the same horizontal line and indicate scale; The volume of described cylinder 2 is greater than the volume of a liquid pipe 6, and volume is not because environmental change changes.
the control circuit of this Automatic continuous quantitative liquid feeding instrument mainly comprises single-chip microcomputer, bridge driver, LCDs, voltage-stablizer, the model of described single-chip microcomputer is AT89C52, and this single-chip microcomputer has 40 pins, and wherein pin 18, pin 19 connect the two ends of 12MHZ crystal oscillator, and crystal oscillator is by ceramic disc capacitor C1 and capacitor C 2 ground connection of two 30PF, and this single-chip microcomputer is processed and calculated for signal, the pin 3 of single-chip microcomputer, pin 4, pin 5 are respectively by ground connection after key switch, and pin 3, pin 4, pin 5 are respectively by connect+24V of pull-up resistor R1, R2, R3 dc source simultaneously, described three key switches are for input signal, press expression state " 1 ", while not pressing, represent state " 0 ", effect is to set liquid range, the corresponding 5ml range of state 001, the corresponding 10ml range of state 010, the corresponding 25ml range of state 011, the corresponding 50ml range of state 100, the corresponding 100ml range of state 101, the model of described bridge driver is L298N, totally 15 pins, wherein connect+5V of pin 9 dc source, connect+9V of pin 4 dc source, pin 5, pin 6, pin 7 connects respectively the pin 39 of single-chip microcomputer, pin 35, pin 38, the pin 1 of bridge driver, pin 15, pin 8 ground connection, pin 2 and pin 3 connect two inputs of direct current generator M, effect is restriction direct current generator input voltage, two inputs of direct current generator M are connecting respectively Current Limiting Diodes D1, the anode of D2, Current Limiting Diodes D1, connect+9V of the negative electrode of D2 dc source, the residue pin of bridge driver is unsettled, this bridge driver is used for the rotation of drive motors M and realizes the opening and closing of valve III 9, the model of LCDs is 1602, and this LCDs has 14 pins, wherein pin 4, pin 5, pin 6, pin 7, pin 8, pin 9, pin 10, pin 11, pin 12, pin 13, pin
14 are connected respectively pin 1, pin 5, pin 6, pin 21, pin 22, pin 23, pin 24, pin 25, pin 26, pin 27, the pin 28 of single-chip microcomputer, connect+5V of pin 1 dc source of LCDs, pin 2 ground connection the slide rheostat R14 by 20K Ω are connected with+5V dc source, pin 3 connects the sliding end of slip variable resistance, and this LCDs can show needed liquid level scale clearly; The model of described voltage-stablizer is 7805, and this voltage-stablizer can be+5V dc source to be respectively equipment power supply by+9V dc source step-down; Liquid level detection electrode connects the base stage of triode by the resistance of 220 Ω, the emitter stage of triode is by connect+9V of the resistance of 10K Ω dc source, the grounded collector of triode, the capacity earth that the base stage of triode is passed through; Described liquid level detection electrode has 5, and representation level 1, water level 2, water level 3, water level 4 and 5, five liquid level detection electrodes of water level connect respectively pin 32, pin 33, pin 34, pin 36 and the pin 37 of single-chip microcomputer by resistance and triode respectively.
the job step of this Automatic continuous quantitative liquid feeding instrument is:
(1) to valve III 9 setup control programs, the liquid level information of No. three liquid pipes 12 is given in the control program of valve III 9;
(2) open valve I 4, tank 1 water outlet, cylinder 2 is closed, and fluid tap 7 fluids, wash;
(3) wash rear valve-off I 4, opened valve II 5, liquid bath 3 fluids to be got, cylinder 2 is closed, and carries out rinse;
(4), after rinse completes, valve-off II 5, enters and gets liquid flow process;
(5) wait wash waste liquor stream clean after, valve III 9 is adjusted to feed liquor flow process, liquid to be got is because of potential difference feed liquor automatically, No. one liquid pipe 6 advances the liquid in No. two liquid pipes 11 in No. three, road liquid pipe 12 by the cylinder 2 being attached thereto;
(6) when the liquid level of No. three liquid pipes 12 reaches setting value, SCM program by-pass valve control III 9 is closed automatically, completes feed liquor flow process;
(7) on liquid dish 10, place liquid receptacle tool 8, by-pass valve control III 9 can be got liquid continuously to allowing to connect liquid status.
Claims (5)
1.
automatic continuous quantitative liquid feeding instrument, this Automatic continuous quantitative liquid feeding instrument comprises tank (1), cylinder (2), liquid bath to be got (3), valve I (4), valve II (5), a liquid pipe (6), fluid tap (7), liquid receptacle tool (8), valve III (9), liquid dish (10), No. two liquid pipes (11) and No. three liquid pipes (12), it is characterized in that, this Automatic continuous quantitative liquid feeding instrument is provided with a square cylinder (2), the bottom of cylinder (2) is communicated with the top of a liquid pipe (6) by conduit, described cylinder (2) is connected with the pipeline of tank (1) bottom and on connecting pipe, is provided with valve I (4), cylinder (2) is connected with the pipeline of liquid bath to be got (3) bottom and on connecting pipe, is provided with valve II (5), valve I (4) is controlled wash water, valve II (5) is controlled liquid rinse to be got, the side of cylinder (2) is connected with the top of No. two liquid pipes (11), and the bottom of No. two liquid pipes (11) is communicated with the bottom of No. three liquid pipes (12), the bottom of a described liquid pipe (6) is communicated with the bottom of liquid bath to be got (3), connectivity part is provided with valve III (9), the protruding fluid tap (7) that is provided with of lower side of a liquid pipe (6), the bottom of fluid tap (7) is provided with liquid receptacle tool (8), and liquid receptacle tool (8) is vertically placed on liquid dish (10).
2.
automatic continuous quantitative liquid feeding instrument according to claim 1, is characterized in that, described liquid dish (10) is circular or square, can hold 6-12 liquid receptacle tool (8).
3.
automatic continuous quantitative liquid feeding instrument according to claim 1, it is characterized in that, the liquid pipe that described No. two liquid pipes (11) are horizontal positioned, its volume is greater than the volume of a liquid pipe (6), before use, will be full of liquid to be got, and liquid level is concordant with the zero graduation of a liquid pipe (6).
4.
automatic continuous quantitative liquid feeding instrument according to claim 1, is characterized in that, a described liquid pipe (6) equates with the volume of No. three liquid pipes (12), in the same horizontal line and indicate scale.
5.
automatic continuous quantitative liquid feeding instrument according to claim 1, it is characterized in that, the volume of described cylinder (2) is greater than the volume of a liquid pipe (6), and volume is not because environmental change changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219331.XU CN203803522U (en) | 2014-04-30 | 2014-04-30 | Automatic and continuous quantitative liquid adding instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219331.XU CN203803522U (en) | 2014-04-30 | 2014-04-30 | Automatic and continuous quantitative liquid adding instrument |
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| Publication Number | Publication Date |
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| CN203803522U true CN203803522U (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420219331.XU Expired - Fee Related CN203803522U (en) | 2014-04-30 | 2014-04-30 | Automatic and continuous quantitative liquid adding instrument |
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| CN (1) | CN203803522U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856350A (en) * | 2018-12-28 | 2019-06-07 | 济南市第四人民医院 | For detecting human body to the kit of Docetaxel drug effect and adverse reaction |
| CN114682318A (en) * | 2020-12-31 | 2022-07-01 | 苏州赛尼特格尔实验室科技有限公司 | Mechanical pipettor |
-
2014
- 2014-04-30 CN CN201420219331.XU patent/CN203803522U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856350A (en) * | 2018-12-28 | 2019-06-07 | 济南市第四人民医院 | For detecting human body to the kit of Docetaxel drug effect and adverse reaction |
| CN114682318A (en) * | 2020-12-31 | 2022-07-01 | 苏州赛尼特格尔实验室科技有限公司 | Mechanical pipettor |
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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: 20140903 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |