CN209752920U - Be provided with alarm device's pipettor of intaking - Google Patents
Be provided with alarm device's pipettor of intaking Download PDFInfo
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- CN209752920U CN209752920U CN201820632810.2U CN201820632810U CN209752920U CN 209752920 U CN209752920 U CN 209752920U CN 201820632810 U CN201820632810 U CN 201820632810U CN 209752920 U CN209752920 U CN 209752920U
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- pipettor
- electrodes
- pipette
- alarm device
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Abstract
The utility model relates to a pipettor with water intake alarm device 2, it includes pipettor body and the suction head of being connected with the pipettor body, be provided with water intake alarm device in the pipettor body, water intake alarm device includes alarm and two electrodes, and two electrode intervals set up at pipettor body and suction head junction, and two electrodes are connected with the alarm electricity through the wire respectively; and the two electrodes are electrically conducted when meeting water to trigger the alarm to send out an alarm signal. The utility model relates to a rationally, simple structure has put through two electrodes when carelessly inhaling liquid this internal with the pipettor in experimental operation, forms a current loop to trigger the alarm and make a sound or luminous alarm signal, so that in time suspend the experiment and maintain the pipettor, thereby avoid reagent to take place cross contamination and the corruption of solvent to the pipettor.
Description
Technical Field
The utility model relates to a move liquid instrument technical field, especially relate to a be provided with alarm device's of intaking pipettor.
Background
The pipettor is a common instrument in the research and experiment of the subjects of biology, chemistry, food, agriculture, medicine, health and the like, particularly a micropipettor, is frequently used in the experiment process, and particularly plays an important role in the fine experiment.
Pipettors typically use the plunger principle for aspirating and expelling liquids. During imbibition, an operator presses the piston rod downwards with fingers to push a special piston in the pipettor to move linearly and at fixed distance in the piston cylinder, so that air in the piston cylinder is emptied to generate negative pressure, the operator releases the pressing thumb, and the piston is pulled back to the original position by using a spring arranged on the piston rod, so that quantitative liquid is aspirated. Since the pipette is used in conjunction with a pipette tip when sucking a liquid, when a full-scale pipette operation is performed in an experiment, if the operation is careless or wrong, a prepared solvent is easily sucked into the pipette. In the teaching experiment, because the operator who uses the pipettor is mostly the experiment beginner, the mistake condition that the pipettor was violently held, even was held upside down appears very easily, makes the solvent be inhaled in the pipettor internal more easily. If the liquid suction in the pipettor is not found in time and the pipettor is used for subsequent operation, cross contamination of a test preparation solvent is easy to occur, so that great errors are brought to the experiment, and even the experiment fails completely in a precise experiment. In addition, liquid entering the pipettor generally has certain acid-base characteristics, and a metal spring in the pipettor is easily corroded, so that metering inaccuracy or complete damage of the pipettor is caused.
Disclosure of Invention
An object of the utility model is to prior art not enough, provide a reasonable in design, simple structure, the pipettor that is provided with alarm device of intaking that has alarming function of intaking.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A pipettor provided with a water inlet alarm device comprises a pipettor body and a suction head connected with the pipettor body, wherein the pipettor body is internally provided with the water inlet alarm device, the water inlet alarm device comprises an alarm and two electrodes, the distance between the two electrodes is arranged in the pipettor at the joint of the pipettor body and the suction head, and the two electrodes are respectively and electrically connected with the alarm through leads; and the two electrodes are electrically conducted when meeting water to trigger the alarm to send out an alarm signal.
The water inlet alarm device further comprises a battery connected with the alarm in series, and the two electrodes are electrically connected with the battery and the alarm through leads respectively.
The alarm is more than one of a sound alarm and a light alarm.
The sound alarm is a buzzer.
The light alarm is an LED lamp.
The two electrodes are replaced by a humidity detection trigger switch device.
The utility model adopts the technical proposal that two electrodes are arranged in the pipette body corresponding to the joint of the pipette body and the suction head, and the distance between the two electrodes is arranged, and a battery and an alarm are arranged in series in the other end of the pipette body far away from the electrodes, and the two electrodes are respectively electrically connected with the battery and the alarm through two wires; because there is certain distance between two electrodes, when being in dry state in the pipettor body, the circuit of alarm device of intaking is in the open circuit state, and the alarm can not send the warning, and when solvents such as water got into the pipettor body in, under the electrically conductive effect of solvent, two electrodes realized that the electric conductance is switched on and are formed a current return circuit and trigger the alarm and send the warning. The utility model discloses a pipettor, behind the solvent that the in use operation carelessly leads to preparing got into the pipettor body from the suction head, the alarm device of intaking can produce a buzzing or luminous alarm signal to the suggestion has the solvent to be inhaled the pipettor body, and the operating personnel just can in time suspend the experiment like this, unpacks apart the pipettor body and maintains the back and reuses, effectively avoids the cross contamination of solvent and prepares the corruption of solvent to the pipettor body. The utility model relates to a rationally, simple structure has the alarming function of intaking.
Drawings
The present invention will now be further elucidated with reference to the accompanying drawings:
fig. 1 is a schematic structural view of the pipette provided with the water intake alarm device of the present invention.
Detailed Description
As shown in fig. 1, the pipette with a water intake alarm device of the present invention includes a pipette body 1 and a suction head (not shown in the figure) connected to the pipette body 1, a water intake alarm device 2 is disposed in the pipette body 1, the water intake alarm device 2 includes an alarm 21 and two electrodes 22, the two electrodes 22 are spaced apart from each other and are disposed at a connection position between the pipette body 1 and the suction head, and the two electrodes 22 are electrically connected to the alarm 21 through wires 23; the two electrodes 22 are electrically conducted in the presence of water to trigger the alarm 21 to send out an alarm signal.
It is within the scope of the present invention that the electrodes 22 described include a moisture detection trigger switch device instead.
The water inlet alarm device 2 further comprises a battery (not shown in the figure) connected in series with the alarm 21, and the two electrodes 22 are electrically connected with the battery and the alarm 21 through leads 23 respectively.
The alarm 21 is more than one of a sound alarm 21 and a light alarm 21.
The sound alarm 21 is a buzzer.
The light alarm 21 is an LED lamp.
The utility model adopts the technical scheme that two electrodes 22 are arranged in the pipette body 1 corresponding to the joint of the pipette body 1 and the suction head, the two electrodes 22 are arranged at intervals, meanwhile, a battery and an alarm 21 are arranged in series in the other end of the pipette body 1 far away from the electrodes, and the two electrodes 22 are respectively electrically connected with the battery and the alarm 21 through two wires 23; because there is certain distance between two electrodes 22, when being in dry state in pipettor body 1, the circuit of alarm device 2 that intakes is in the broken circuit state, and alarm 21 can not send the warning, and when solvent such as water got into pipettor body 1 in, under the electrically conductive effect of solvent, two electrodes 22 realized the electric conduction and formed a current loop and triggered alarm 21 and send the warning. The utility model discloses a pipettor, in use operation carelessly lead to the solvent of preparation to get into pipettor body 1 back from the suction head, alarm device 2 of intaking can produce a buzzing or luminous alarm signal to the suggestion has the solvent by inhaling pipettor body 1, and the operation person just can in time suspend the experiment like this, unpacks pipettor body 1 apart and maintains the back and reuses, effectively avoids the cross contamination of solvent and prepares the corruption of solvent to pipettor body 1.
The above description should not be taken as limiting the scope of the invention in any way.
Claims (6)
1. The utility model provides a be provided with alarm device's pipettor of intaking, includes pipettor body and the suction head of this body coupling of pipettor, its characterized in that: the device comprises a pipette body, a water inlet alarm device, a suction head and a control circuit, wherein the water inlet alarm device is arranged in the pipette body and comprises an alarm and two electrodes, the distance between the two electrodes is arranged on the inner wall of the joint of the pipette body and the suction head, and the two electrodes are respectively connected with the alarm through leads; the two electrodes are electrically conducted when meeting water to trigger the alarm to send out an alarm signal so as to prompt that a solvent is sucked into the pipettor body.
2. A pipette provided with a water ingress warning device according to claim 1, characterised in that: the water inlet alarm device further comprises a battery connected with the alarm in series, and the two electrodes are electrically connected with the battery and the alarm through leads respectively.
3. A pipette provided with a water ingress warning device according to claim 1, characterised in that: the alarm is more than one of a sound alarm and a light alarm.
4. A pipette provided with a water ingress warning device according to claim 3, characterised in that: the sound alarm is a buzzer.
5. A pipette provided with a water ingress warning device according to claim 3, characterised in that: the light alarm is an LED lamp.
6. A pipette provided with a water ingress warning device according to claim 1, characterised in that: the two electrodes are replaced by a humidity detection trigger switch device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820632810.2U CN209752920U (en) | 2018-04-28 | 2018-04-28 | Be provided with alarm device's pipettor of intaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820632810.2U CN209752920U (en) | 2018-04-28 | 2018-04-28 | Be provided with alarm device's pipettor of intaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209752920U true CN209752920U (en) | 2019-12-10 |
Family
ID=68743454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820632810.2U Active CN209752920U (en) | 2018-04-28 | 2018-04-28 | Be provided with alarm device's pipettor of intaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209752920U (en) |
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2018
- 2018-04-28 CN CN201820632810.2U patent/CN209752920U/en active Active
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