CN207361780U - A kind of quantitative liquid feeding apparatus - Google Patents
A kind of quantitative liquid feeding apparatus Download PDFInfo
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- CN207361780U CN207361780U CN201721371384.3U CN201721371384U CN207361780U CN 207361780 U CN207361780 U CN 207361780U CN 201721371384 U CN201721371384 U CN 201721371384U CN 207361780 U CN207361780 U CN 207361780U
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- liquid
- drop
- feeding apparatus
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- quantitative
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Abstract
The utility model provides a kind of quantitative liquid feeding apparatus, including at least a set of liquid transfer assembly, liquid drop sensor and control circuit.The actuator that liquid transfer assembly includes pipeline and drives liquid to be flowed in channel interior, pipeline have sample introduction end and sample outlet end, and liquid is dripped after being flowed out by sample outlet end with drops；Liquid drop sensor includes the transmitting terminal for sending optical signal and receives the receiving terminal of the optical signal of drop reflection；Control circuit connects the actuator and the liquid drop sensor respectively.Quantitative liquid feeding apparatus when in use, if by the detection zone of liquid drop sensor when making drips, the optical signal that is reflected by detecting drop, realize the counting to drop, proper calibration optical axis is not required in sensor, and installation process is simple, the opposite service life for extending quantitative liquid feeding apparatus.After drop signal feeds back to control circuit, control circuit controls the operation of actuator, realizes quantitative absorption and dropwise addition to target liq by the dripping quantity for comparing drop and default liquid volume added.
Description
Technical field
It the utility model is related to biochemical, technical field of medical detection, and in particular to a kind of quantitative liquid feeding apparatus.
Background technology
In the check analysis experiment in the fields such as biology, chemistry and medicine, it is often necessary to carry out to reaction reagent or sample
Quantifying for this liquid pipettes operation, can cause larger workload since experimenter manually completes operation, and easily because experimenter's
Experience and maloperation produce serious experimental bias.Therefore, often using at present has the function of that the experiment that quantitative liquid pipettes is automatic
Metaplasia thing, chemical analysis instrument, such as clinical biochemical instrument, Hematometer, flow cytometer, automatic food safety detector etc..On
State that self-reacting device relies primarily on plunger pump technique and syringe pump technology realizes that the accurate quantification of liquid pipettes, specifically with stepping
Motor control control plunger or piston movement, realize precisely quantitatively pipetting for liquid.But above-mentioned quantitative sampling device relies on stepping
Motor, deviation is easily produced when pipetting micro liquid；In addition complicated, functional unit the volume of device is larger, unfavorable
In the Highgrade integration for realizing instrument.Realize that another scheme that liquid quantitative pipettes is to extrude flexible pump line in peristaltic pump, make
Pump line, which is wriggled, realizes that liquid is inhaled, on the basis of row, and the rotation angle by accurately controlling peristaltic pump realizes liquid to a certain extent
Body quantitatively pipettes, but precision is difficult to control, and is mainly used in the occasion not high to liquid feeding volume accuracy requirements.
A kind of accurate liquid extracting device, including for Liquid extracting are disclosed in Chinese patent literature CN204281286U
One peristaltic pump, controls the first motor of the first peristaltic pump, and the liquid of extraction is discharged into the fluid connection of fluid collection device, liquid
Connector includes liquid feeding end and outlet end, and the both sides of the outlet end of fluid connection set transmitting terminal and the reception of photoelectric sensor respectively
End, drop pass through between transmitting terminal and receiving terminal when being come out from outlet end, become the light between transmitting terminal and receiving terminal
Change, photoelectric sensor produces signal and counts.
Above-mentioned accurate liquid extracting device realizes counting to drop, but photoelectricity by light transmitted through weakened during drop
The transmitting terminal and receiving terminal of sensor have to be arranged at the both sides of drop, to need stringent optical axis calibrator when mounted, make hair
The optical axis for penetrating end and receiving terminal is located in same horizontal line, and mounting condition is more harsh, and during follow-up use it is easy because
The displacement of transmitting terminal or installation end causes to lose droplet counting function, shortens the service life of accurate liquid extracting device；The opposing party
Face, the operating path when both sides that the transmitting terminal and receiving terminal of photoelectric sensor are oppositely arranged on drop extend drop detection,
Cause the volume of accurate liquid extracting device to increase, especially when needing to set multiple drop connectors to draw plurality of liquid, it is necessary to
A photoelectric sensor is correspondingly arranged in the outlet end of each drop connector, further increases the volume of accurate liquid extracting device,
It is unfavorable for realizing the portable quantitative liquid feeding apparatus of miniaturization.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome accurate liquid extracting device mounting bar of the prior art
The problem of part harshness and short service life.
For this reason, the utility model provides a kind of quantitative liquid feeding apparatus, including
At least a set of liquid transfer assembly, the liquid transfer assembly include pipeline and driving liquid in the channel interior
The actuator of flowing, the pipeline have sample introduction end and sample outlet end；
Liquid drop sensor, including send the transmitting terminal of optical signal and receive described in the drop reflection that the sample outlet end oozes
The receiving terminal of optical signal；
Control circuit, connects the actuator and the liquid drop sensor respectively, for receiving the liquid drop sensor production
Raw drop signal simultaneously controls the actuator.
Preferably, above-mentioned quantitative liquid feeding apparatus, the transmitting terminal and the receiving terminal are located at the drips path
Homonymy.
Preferably, above-mentioned quantitative liquid feeding apparatus, the transmitting terminal and the receiving terminal are vertically arranged in parallel.
Preferably, above-mentioned quantitative liquid feeding apparatus, the sample introduction end connect sample introduction needle, and the sample introduction needle stretches into the liquid
It is internal.
Preferably, above-mentioned quantitative liquid feeding apparatus, the sample outlet end connect sample needle, and the sample needle is vertically set
Put and positioned at the top of the liquid drop sensor.
Preferably, above-mentioned quantitative liquid feeding apparatus, the detection center and the bottom of the sample needle of the liquid drop sensor
Port in the vertical direction is at a distance of 5~15mm.
Preferably, above-mentioned quantitative liquid feeding apparatus, the actuator have input terminal and output terminal；The pipeline is by described
Input terminal is pierced by after penetrating the actuator by the output terminal, and the pipeline is the sample introduction end adjacent to one end of input terminal,
The pipeline is sample outlet end adjacent to one end of the output terminal.
Preferably, above-mentioned quantitative liquid feeding apparatus, the actuator are peristaltic pump.
Technical solutions of the utility model, have the following advantages that：
1st, quantitative liquid feeding apparatus provided by the utility model, including liquid transfer assembly, liquid drop sensor and control circuit.
When quantitative liquid feeding apparatus is run, under the driving of actuator, liquid is drawn into pipeline by the sample introduction end of pipeline, and in pipe
Circulation is finally flowed out by sample outlet end in road；The pipeline diameter of flow rate of liquid and sample outlet end is controlled by actuator, liquid can be made
Body is oozed from sample outlet end with drops, and accurately determines the volume of drop.Meanwhile the signal transmitting terminal of liquid drop sensor is sent
Optical signal, after drop enters the detection zone of liquid drop sensor, can be reflected optical signal, the optical signals liquid after reflection
The signal receiving end of drop sensor is received, and is relatively free of the situation of drips, the optical signal that liquid drop sensor detects is shown
Enhancing is write, realizes the counting to drop.The drop signal of acquisition is fed back to control circuit by liquid drop sensor, and control circuit passes through
Compare the dripping quantity of drop and default liquid volume added, the operation to actuator is controlled, and realizes the quantitative suction to target liq
Take and be quantitatively added dropwise.
The quantitative liquid feeding apparatus of this structure, liquid drop sensor are realized to the meter of drop by receiving the optical signal that drop reflects
Number, as long as passing through the detection zone of liquid drop sensor during making drips, can realize the detection to drop, drop sensing
Proper calibration optical axis is not required in device, and installation process is simple.Meanwhile the transmitting terminal and receiving terminal of liquid drop sensor are in limited amplitude
Deviation do not interfere with the normal use of liquid drop sensor, and then extend the service life of quantitative liquid feeding apparatus.
2nd, quantitative liquid feeding apparatus provided by the utility model, the transmitting terminal and receiving terminal of liquid drop sensor are located at drips
The homonymy in path, effectively reduces the volume of liquid drop sensor, makes the compact-sized of quantitative liquid feeding apparatus, is advantageously implemented quantitative
The miniaturization of liquid-adding device.
3rd, quantitative liquid feeding apparatus provided by the utility model, signal transmitting terminal with signal receiving end is vertically parallel sets
Put, make liquid drop sensor and the side end face that drop is neighbouring parallel with the drop dripped, the signal transfer efficiency of liquid drop sensor
Height, and then improve the sensitivity of liquid drop sensor detection.
4th, quantitative liquid feeding apparatus provided by the utility model, the sample introduction end connection sample introduction needle of pipeline, sample introduction needle stretch into target
Liquid internal.Sample introduction needle is directly protruding into liquid internal, liquid is directly entered after being drawn in pipeline, sample of cutting down the number of intermediate links
Loss and pollution；And be conducive to raising using sample introduction needle and take liquid precision, it is particularly advantageous to the absorption to micro liquid.
5th, quantitative liquid feeding apparatus provided by the utility model, sample outlet end connection sample needle, sample needle are vertically set
And positioned at the top of the liquid drop sensor.Sample outlet end connect sample needle, be conducive to reduce liquid outflow bore, make liquid with
The form of drop oozes；Sample needle is vertically arranged, and drop is fallen vertically after being oozed from sample needle, is on the one hand advantageously implemented liquid
The front end face of drop drippage path and liquid drop sensor is parallel to each other, improves the detection efficiency of liquid drop sensor, another aspect drop
Enter by shortest road strength in target container, avoid droplets from the loss during drippage.
6th, quantitative liquid feeding apparatus provided by the utility model, the detection center of liquid drop sensor and the bottom port of sample needle
In the vertical direction is at a distance of 5~15mm, and after oozing drop, the detection zone of liquid drop sensor is passed through with complete drop state,
And by the instant detection of liquid drop sensor 22, drop is counted.
7th, quantitative liquid feeding apparatus provided by the utility model, actuator are peristaltic pump, and peristaltic pump has input terminal and output
End；The pipeline is penetrated after the peristaltic pump by the input terminal and is pierced by by the output terminal, and the pipeline is adjacent to input terminal
One end is the sample introduction end, and the pipeline is sample outlet end adjacent to one end of the output terminal.Peristaltic pump is defeated with self-priming and liquid
The function of sending, the absorption and transfer of liquid can be realized using peristaltic pump；Liquid can be controlled in pipeline using peristaltic pump at the same time
The speed of interior circulation, and the precision controlled is high, stability is good, suitable for constant current and high-precision flow control；During wriggling pump operation
Liquid only flows in pipeline, does not contact the pump housing, uses process cleans, pollution-free.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, describe below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the connection diagram of the quantitative liquid feeding apparatus provided in the embodiment 1 of the utility model；
Description of reference numerals：
1- liquid storage bottles；
2- quantitative liquid feeding apparatus, 21- liquid transfer assembly, 211- pipelines, 2111- sample introductions end, 2112- sample outlet ends, 212-
Actuator, 2121- input terminals, 2122- output terminals, 213- sample introduction needles, 214- sample needles, 22- liquid drop sensors, 221- transmittings
End, 222- receiving terminals, 23- control circuits；
3- containers；
4- drops.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not forming conflict can be combined with each other.
Embodiment 1
The present embodiment provides a kind of quantitative liquid feeding apparatus, including a set of liquid transfer assembly 21, liquid drop sensor 22 and control
Circuit 23 processed.
As shown in Figure 1, liquid transfer assembly 21 includes pipeline 211 and actuator 212, wherein, pipeline 211 is soft for silica gel
Pipe, actuator 212 is peristaltic pump.Peristaltic pump has input terminal 2121 and output terminal 2122；Silica gel hose is worn by input terminal 2121
It is pierced by after entering peristaltic pump by output terminal 2122, silica gel hose is sample introduction end 2111 adjacent to one end of input terminal 2121, silica gel hose
One end of neighbouring output terminal 2122 is sample outlet end 2112.The sample introduction end 2111 of silica gel hose connects sample introduction needle 213, sample introduction needle 213
Stretch into liquid storage bottle 1, and stretch into inside target liq.The sample outlet end 2112 of silica gel hose connects sample needle 214, sample needle 214
Prolong vertical direction installation, the container 3 of liquid feeding, the bottom end of container 3 and sample needle 214 are treated in the bottom port alignment of sample needle 214
Mouth is separated by certain spacing.
Liquid transfer assembly 21 is using the self-priming and liquid conveying function of peristaltic pump, and under the driving of peristaltic pump, liquid leads to
Cross sample introduction needle 213 to be inhaled into inside silica gel hose, sample introduction needle 213 is directly protruding into the liquid internal in liquid storage bottle 1, is inhaled liquid
It is directly entered after taking in silica gel hose, the loss and pollution of sample of cutting down the number of intermediate links；And be conducive to improve using sample introduction needle 213
Liquid precision is taken, is conducive to the absorption to micro liquid.Liquid enter silica gel hose in after from the sample introduction end 2111 of silica gel hose to
Sample outlet end 2112 flows, and finally flows into sample needle 214 by sample outlet end 2112, by selecting the bore of sample needle and utilizing peristaltic pump
Flow velocity of the liquid in silica gel hose is controlled, liquid is oozed in the form of drop 4 and instills in container 3.Sample needle 214 prolongs vertically
Direction is installed, and is on the one hand advantageously implemented the drippage path of drop 4 and the front end face of liquid drop sensor 22 is parallel to each other, improve drop
The detection efficiency of sensor 22, another aspect drop 4 enter in container 3 by shortest road strength, during avoiding droplets from 4 drippages
Loss.The speed that liquid circulates in silica gel hose can be controlled using peristaltic pump, and the precision controlled is high, stability is good,
Suitable for constant current and high-precision flow control；Liquid only flows in silica gel hose during wriggling pump operation, does not contact the pump housing, uses
It is process cleans, pollution-free.
Liquid drop sensor 22 is provided with being dripped along drop 4 on the left of path, liquid drop sensor 22 includes sending optical signal
Transmitting terminal 221 and receive drop reflection optical signal receiving terminal 222.Transmitting terminal 221 and receiving terminal 222 are vertically put down
Row is set, and is on the one hand conducive to reduce the volume of liquid drop sensor, is made the compact-sized of quantitative liquid feeding apparatus, on the other hand can
Liquid drop sensor is obtained front end face parallel with the drop dripped, be conducive to improve turn between the optical signal and electric signal of sensor
Change efficiency.Liquid drop sensor 22 is located at the bottom of sample needle 214, and the detection center of liquid drop sensor 22 and sample needle 214
Bottom port in the vertical direction at a distance of 5~15mm, drop 4 passes through the inspection of liquid drop sensor with complete drop state after oozing
Region is surveyed, and by the instant detection of liquid drop sensor 22, drop 4 is counted.
After liquid drop sensor 22 is installed in place, dropping liquid 4 is set to pass through the inspection center of liquid drop sensor 22 during drippage.
During the use of quantitative liquid feeding apparatus, optical signal is sent by transmitting terminal 221, by liquid after lightray propagation to 4 surface of drop
The reflection of drop 4, the optical signal of reflection enters in receiving terminal 222, with respect to the situation of dripless, optical signal that receiving terminal 222 detects
Significantly increase, the counting to drop is realized by the enhancing of optical signal.Liquid drop sensor 22 and peristaltic pump 212 pass through conducting wire and control
Circuit 23 processed is connected, and the drop signal of generation is conveyed to control circuit 23 by liquid drop sensor 22, and control circuit 23 passes through liquid
The time interval of the drippage of drop 4, can detect the drain age velocity for determining liquid-adding device, further by controlling peristaltic pump, realize to row
The closed-loop control of liquid；On the other hand, in the case where the port diameter of drain age velocity, sample needle 214 is fixed, single drop
Volume makes definite, and then can realize to the precisely quantitative of drop 4 is added dropwise into container 3, be detected in liquid drop sensor 22
When Liquid addition reaches targets threshold, fed back to control circuit 23, control circuit 23 controls after reading feedback signal
The absorption and discharge of peristaltic pump stop liquid, realize the purpose of automation quantitative liquid feeding.
Quantitative liquid feeding apparatus in this embodiment, on the one hand using counting of the liquid drop sensor 22 to the drop 4 of drippage,
And the closed-loop control of liquid drop sensor 22, peristaltic pump and control circuit 23, realize the accurate purpose quantitatively added of liquid.Separately
On the one hand, liquid drop sensor 22 is by receiving counting of the optical signal realization of the reflection of drop 4 to drop 4, as long as dripping drop 4
During pass through the detection zone of liquid drop sensor 22, can realize the detection to drop 4, liquid drop sensor 22 need not be stringent
Optical axis is calibrated, installation process is simple.Meanwhile the transmitting terminal 221 and receiving terminal 222 of liquid drop sensor 22 are inclined in limited amplitude
Difference does not interfere with the normal use of liquid drop sensor, and then extends the service life of quantitative liquid feeding apparatus.Meanwhile drop senses
The transmitting terminal 221 and receiving terminal 222 of device 22 are located at the homonymy that drop 4 drips path, effectively reduce the body of liquid drop sensor 22
Product, makes the compact-sized of quantitative liquid feeding apparatus, is advantageously implemented the miniaturization of quantitative liquid feeding apparatus.
As alternative embodiment, liquid transfer assembly 21 can also be 2 sets, 3 sets, 4 sets etc., accordingly, into
Sample pin 213 and sample needle 214 are 2,3,4 etc., as long as the drop 4 that each sample needle 214 oozes is all located at drop sensing
In the detection zone of device 22.By installing multiple liquid transfer assembly 21, it can realize the absorption to plurality of target liquid and turn
Move；Liquid transfer assembly 21 is after installation is complete, and sample needle 214 is along same horizontal line or so laid out in parallel, each sample-adding when in use
Liquid in pin 214 successively adds in order, and liquid drop sensor is sequentially completed the counting to each drop 4.
As the deformation of liquid transfer assembly 21, peristaltic pump can be replaced by other actuators with liquid assimilating and conveying
Generation, such as diaphragm pump etc.；As further deformation, silica gel hose can it is low by other adsorptivities, temperature tolerance is good, erosion-resisting
The pipeline of liquid conveying substitutes, such as fluorubber hose, Teflon hose etc..
As the deformation of liquid drop sensor 22, the transmitting terminal 221 and receiving terminal 222 of liquid drop sensor 22 can not be located at liquid
The same side in the drippage of drop 4 path, for example, the vertical direction that transmitting terminal 221 and receiving terminal 222 drip path along drop 4 is placed, only
Dropping liquid 4 is passed through the detection zone of liquid drop sensor 22 during dripping, realize the counting to drop 4.As into one
The deformation of step, transmitting terminal 221 and receiving terminal 222 can be placed with certain angle, as long as the optical signal warp that transmitting terminal 221 is sent
Drop 4 reflect after, can receiving end 222 received.
As alternative embodiment, sample introduction needle 213 can also be not provided with, the sample introduction end 2111 of silica gel hose is direct
Stretch into inside target liq, realize the absorption to liquid.As further deformation, sample needle 214 can also be not provided with, by silicon
The port of the sample outlet end 2112 of glue hose tightens until liquid is oozed with drops.
Obviously, the above embodiments are merely examples for clarifying the description, and the restriction not to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (8)
- A kind of 1. quantitative liquid feeding apparatus, it is characterised in that includingAt least a set of liquid transfer assembly (21), the liquid transfer assembly (21) include pipeline (211) and driving liquid in institute The actuator (212) of pipeline (211) internal flow is stated, the pipeline (211) has sample introduction end (2111) and sample outlet end (2112)；Liquid drop sensor (22), including send the transmitting terminal (221) of optical signal and to receive the drop (4) that the sample outlet end oozes anti- The receiving terminal (222) for the optical signal penetrated；Control circuit (23), connects the actuator (212) and the liquid drop sensor (22), for receiving the drop respectively The drop signal of sensor (22) generation simultaneously controls the actuator (212).
- 2. quantitative liquid feeding apparatus according to claim 1, it is characterised in that the transmitting terminal (221) and the receiving terminal (222) positioned at the homonymy in the drop (4) drippage path.
- 3. quantitative liquid feeding apparatus according to claim 2, it is characterised in that the transmitting terminal (221) and the receiving terminal (222) vertically it is arranged in parallel.
- 4. quantitative liquid feeding apparatus according to claim 1, it is characterised in that the sample introduction end (2111) connects sample introduction needle (213), the sample introduction needle (213) stretches into the liquid internal.
- 5. quantitative liquid feeding apparatus according to claim 1, it is characterised in that the sample outlet end (2112) connects sample needle (214), the sample needle (214) vertically sets and positioned at the top of the liquid drop sensor (22).
- 6. quantitative liquid feeding apparatus according to claim 5, it is characterised in that the detection center of the liquid drop sensor (22) Bottom port in the vertical direction with the sample needle (214) is at a distance of 5~15mm.
- 7. quantitative liquid feeding apparatus according to claim 1, it is characterised in that the actuator (212) has input terminal (2121) and output terminal (2122)；The pipeline (211) is penetrated after the actuator (212) by institute by the input terminal (2121) State output terminal (2122) to be pierced by, one end of the neighbouring input terminal (2121) of the pipeline (211) is the sample introduction end (2111), described One end of the neighbouring output terminal (2122) of pipeline (211) is sample outlet end (2112).
- 8. quantitative liquid feeding apparatus according to claim 7, it is characterised in that the actuator (212) is peristaltic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721371384.3U CN207361780U (en) | 2017-10-23 | 2017-10-23 | A kind of quantitative liquid feeding apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721371384.3U CN207361780U (en) | 2017-10-23 | 2017-10-23 | A kind of quantitative liquid feeding apparatus |
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| CN207361780U true CN207361780U (en) | 2018-05-15 |
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| CN201721371384.3U Active CN207361780U (en) | 2017-10-23 | 2017-10-23 | A kind of quantitative liquid feeding apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108686732A (en) * | 2018-07-27 | 2018-10-23 | 山东大学齐鲁医院 | A kind of rotatable test tube holder |
| CN110568514A (en) * | 2019-08-21 | 2019-12-13 | 吉林大学 | sweat wiping device for doctor of surgical operation main knife |
| CN112857854A (en) * | 2021-03-02 | 2021-05-28 | 深圳远荣智能制造股份有限公司 | Automatic detect atomizer spraying flow and life's equipment |
-
2017
- 2017-10-23 CN CN201721371384.3U patent/CN207361780U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108686732A (en) * | 2018-07-27 | 2018-10-23 | 山东大学齐鲁医院 | A kind of rotatable test tube holder |
| CN110568514A (en) * | 2019-08-21 | 2019-12-13 | 吉林大学 | sweat wiping device for doctor of surgical operation main knife |
| CN112857854A (en) * | 2021-03-02 | 2021-05-28 | 深圳远荣智能制造股份有限公司 | Automatic detect atomizer spraying flow and life's equipment |
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