CN203790959U - Quantitative liquid suction device - Google Patents
Quantitative liquid suction device Download PDFInfo
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- CN203790959U CN203790959U CN201420159585.7U CN201420159585U CN203790959U CN 203790959 U CN203790959 U CN 203790959U CN 201420159585 U CN201420159585 U CN 201420159585U CN 203790959 U CN203790959 U CN 203790959U
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- liquid
- negative pressure
- getting device
- discharge container
- liquid getting
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Abstract
The utility model discloses a quantitative liquid suction device. The quantitative liquid suction device comprises a sucker of the liquid suction device, wherein the upper end of the sucker of the liquid suction device is inserted in an overflowing liquid container; the cavity volume of the sucker of the liquid suction device is fit with the target sucked liquid volume value; a negative pressure generating device and a pressure relief opening are formed on the overflowing liquid container; the negative pressure generating device can generate negative pressure in the overflowing liquid container; the pressure relief opening can disappear the negative pressure in the overflowing liquid container. The quantitative liquid suction device has the beneficial effects that liquid can be accurately sucked without setting accurate negative pressure, so that the negative pressure generating device is diverse in selection and is relatively low in cost; the quantitative liquid suction device is especially suitable for being applied to soil constituent testing experiments; the quantitative liquid suction device has the advantages that the quantitative liquid suction device has a simple structure, is low in price, achieves high-accuracy quantitative liquid suction under the condition that the scales of the liquid suction device are unnecessary to be observed by users, and is convenient to match with automation devices.
Description
Technical field
The utility model relates to the technical field of liquid taking device, and especially liquid getting device, specifically, is a kind of quantitative liquid getting device.
Background technology
Liquid getting device be especially in laboratory for the hand-held or fixing dispenser apparatus of dispensing liquid.In soil constituent test experiments, the use of liquid getting device is very frequent also.Soil constituent test experiments is that quantitative soil to be measured is immersed in a certain amount of measurement liquid, and after stirring, standing a period of time, then draws supernatant with liquid getting device, and supernatant is measured.In test, the amount of the supernatant needing is certain, and for example needing the supernatant volume of drawing is 10ml, uses general liquid getting device, need in concrete operations, draw comparatively carefully supernatant to 10ml scale place, and precision is not high.As use high-precision liquid getting device, too expensive.Meanwhile, adopt the liquid getting device of mentioned kind to need user's manual operation, examine the liquid height of absorption, operation is difficult to automation.
Utility model content
Technical problem to be solved in the utility model is for the above-mentioned state of the art, and provides a kind of simple in structure, cheap and in the situation that not needing user to observe liquid getting device scale, realize high-precision quantitative liquid getting, be convenient to the quantitative liquid getting device that coordinates with automation equipment.
The utility model solves the problems of the technologies described above adopted technical scheme:
Quantitative liquid getting device, include liquid getting device suction pipe, wherein, liquid getting device suction pipe upper end insert in discharge container and the tube chamber volume of liquid getting device suction pipe and target to get liquid bulking value suitable, discharge container is provided with and can makes the pressure relief opening that produces the negative pressure generating device of negative pressure and make negative pressure disappearance in discharge container in discharge container.
For optimizing technique scheme, the concrete measure of taking also comprises:
Above-mentioned liquid getting device suction pipe and the contact-making surface of discharge container are sealing setting.
Above-mentioned negative pressure generating device is negative pressure gasbag or vacuum generator.
The contact-making surface of above-mentioned negative pressure generating device and discharge container is sealing setting.
The bottom of above-mentioned discharge container is provided with leakage hole.
Above-mentioned pressure relief opening is arranged on the top of discharge container.
A using method for quantitative liquid getting device, comprises the following steps:
Step 1, the pressure relief opening of quantitative liquid getting device is kept closed, and liquid getting device suction pipe lower end is inserted got below liquid liquid level;
Step 2, by negative pressure generating device, make to produce negative pressure in discharge container, this negative pressure makes to be got liquid and flows in liquid getting device suction pipe;
Step 3, quilt are got liquid and are full of after liquid getting device suction pipe, continue to flow in discharge container, along with being got the inflow of liquid, negative pressure in discharge container reduces gradually, until no longer flowed in discharge container by being got liquid, now got that liquid is still full of liquid getting device suction pipe and liquid getting device suction pipe upper end is not had by the immersion of being got in discharge container;
Step 4, quantitative liquid getting device is moved to target container, and make liquid getting device suction pipe lower end aligned target container, open pressure relief opening, the negative pressure in discharge container is disappeared, the liquid got in liquid getting device suction pipe flows in target container.
After above-mentioned step 4, be also provided with step 5: quantitative liquid getting device is left to target container place, open the leakage hole that is arranged on discharge container bottom, the liquid of being got in discharge container is discharged.
In above-mentioned step 1, to insert and to be got the following degree of depth of liquid liquid level be 0.8cm to 1.2cm in liquid getting device suction pipe lower end.
Above-mentioned liquid getting device suction pipe lower end is carved with for observing liquid getting device suction pipe and is inserted the scale of being got liquid level.
Quantitative liquid getting device of the present utility model, include liquid getting device suction pipe, wherein, liquid getting device suction pipe upper end insert in discharge container and the tube chamber volume of liquid getting device suction pipe and target to get liquid bulking value suitable, discharge container is provided with and can makes the pressure relief opening that produces the negative pressure generating device of negative pressure and make negative pressure disappearance in discharge container in discharge container.Stable in order to guarantee the pressure in discharge container 2, the contact-making surface that needs liquid getting device suction pipe and discharge container is sealing setting.The contact-making surface of negative pressure generating device and discharge container also arranges for sealing, and the liquid level in liquid getting device suction pipe can just not decline before pressure relief opening is opened like this.The utility model is got the suitable liquid getting device suction pipe of liquid bulking value by one with target and is realized high accuracy and get liquid, for example, getting liquid measure is 10ml, on quantitative liquid getting device of the present utility model, be equipped with the liquid getting device suction pipe corresponding with 10ml, then by negative pressure generating device, liquid getting device suction pipe is produced to negative pressure, make to be full of and to be got liquid in liquid getting device suction pipe, because liquid getting device suction pipe volume is just in time corresponding with 10ml, therefore, as long as the liquid of being got in liquid getting device suction pipe is transferred to and can be completed a high accuracy in target container and get liquid.What deserves to be explained is, liquid getting device suction pipe volume is corresponding with 10ml does not represent that liquid getting device suction pipe volume is 10ml, because consider that the surface tension of small volume of water solution and liquid getting device suction pipe are from being got the variation in water pressure while extracting out liquid liquid level, liquid getting device suction pipe volume can be done some adjustment.Quantitative liquid getting device of the present utility model is especially applicable to being applied in soil constituent test experiments because this requirement of experiment to move liquid long-pending substantially fixing, the setting of liquid getting device suction pipe volume is more for convenience.In soil constituent test experiments, whole process is all handwork, there is no automation, and its reason is to get this step of liquid greatly needs people to observe, and this experiment adopts the high equipment of complex precise, price very uneconomical.The utility model is got the fixing feature of liquid measure according to soil constituent test experiments, designs and the liquid getting device suction pipe of getting liquid measure adaptation, and the performance accuracy of getting liquid operation requirements is reduced greatly, makes the automation of soil constituent test experiments become possibility.
This method does not need to arrange negative pressure accurately can carry out accurate liquid extracting, and therefore, the selection of negative pressure generating device is various, and cost is lower.The utlity model has simple in structure, cheap and in the situation that not needing user to observe liquid getting device scale, realize high-precision quantitative liquid getting, be convenient to the advantage that coordinates with automation equipment.
Accompanying drawing explanation
Fig. 1 is that the utility model quantitative liquid getting device inserts the view of being got liquid liquid level;
Fig. 2 is that the view after liquid is got in the absorption of the utility model quantitative liquid getting device;
Fig. 3 is that the utility model is drawn the view that the quantitative liquid getting device of being got after liquid moves to target container place;
Fig. 4 is that the utility model is opened the view of being got liquid inflow target container in liquid getting device suction pipe by pressure relief opening;
Fig. 5 is that the utility model is opened the view that quantitative liquid getting device leakage hole is discharged hydrops.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is to Figure 5 shows that structural representation of the present utility model.
Reference numeral is wherein: liquid getting device suction pipe 1, discharge container 2, negative pressure generating device 3, pressure relief opening 4, leakage hole 5.
The first embodiment:
As shown in Fig. 1 to 5, quantitative liquid getting device, include liquid getting device suction pipe 1, wherein, liquid getting device suction pipe 1 upper end insert in discharge container 2 and the tube chamber volume of liquid getting device suction pipe 1 and target to get liquid bulking value suitable, discharge container 2 is provided with the pressure relief opening 4 that can make the negative pressure generating device 3 of the interior generation negative pressure of discharge container 2 and make the interior negative pressure disappearance of discharge container 2.
It is 10ml that target is got liquid bulking value, and tube chamber volume settings is 10ml.
In embodiment, liquid getting device suction pipe 1 is sealing setting with the contact-making surface of discharge container 2.
In embodiment, negative pressure generating device 3 is sealing setting with the contact-making surface of discharge container 2.
In embodiment, negative pressure generating device 3 is negative pressure gasbag.Use negative pressure gasbag is easy to operate, and cost is low, and the utility model do not need high-precision negative pressure, therefore, selects negative pressure gasbag the most suitable as negative pressure generating device 3.
In embodiment, the bottom of discharge container 2 is provided with leakage hole 5.The position of leakage hole 5 can be in the lower sidewall of discharge container 2, also can be on the diapire of discharge container 2.Being arranged on this two place can make leakage hole 5 effectively complete remaining liquid to topple over.
In embodiment, pressure relief opening 4 is arranged on the top of discharge container 2.Pressure relief opening 4 can be arranged on the side wall upper part of discharge container 2, also can be on the roof of discharge container 2.If discharge container 2 is enough large or negative pressure is less, enter discharge container 2 to be got liquid liquid level low, pressure relief opening 4 can be arranged on the sidewall middle part of discharge container 2, requirement is that liquid level can have pressure relief opening 4.
A using method for quantitative liquid getting device, comprises the following steps:
Step 1, the pressure relief opening of quantitative liquid getting device 4 is kept closed, and liquid getting device suction pipe 1 lower end is inserted got below liquid liquid level;
Step 2, by negative pressure generating device 3, make the interior generation negative pressure of discharge container 2, this negative pressure makes to be got liquid and flows in liquid getting device suction pipe 1;
Step 3, quilt are got liquid and are full of after liquid getting device suction pipe 1, continue to flow in discharge container 2, along with being got the inflow of liquid, negative pressure in discharge container 2 reduces gradually, until no longer flowed in discharge container 2 by being got liquid, now got that liquid is still full of liquid getting device suction pipe 1 and liquid getting device suction pipe 1 upper end is not had by the immersion of being got in discharge container 2;
Step 4, quantitative liquid getting device is moved to target container, and make liquid getting device suction pipe 1 lower end aligned target container, open pressure relief opening 4, the negative pressure in discharge container 2 is disappeared, the liquid got in liquid getting device suction pipe 1 flows in target container.
In embodiment, after step 4, be also provided with step 5: quantitative liquid getting device is left to target container place, open the leakage hole 5 that is arranged on discharge container 2 bottoms, the liquid of being got in discharge container 2 is discharged.
In embodiment, in step 1, to insert and to be got the following degree of depth of liquid liquid level be 0.8cm to 1.2cm in liquid getting device suction pipe 1 lower end.
In embodiment, liquid getting device suction pipe 1 lower end is carved with for observing liquid getting device suction pipe 1 and is inserted the scale of being got liquid level.
The second embodiment:
Quantitative liquid getting device, include liquid getting device suction pipe 1, wherein, liquid getting device suction pipe 1 upper end insert in discharge container 2 and the tube chamber volume of liquid getting device suction pipe 1 and target to get liquid bulking value suitable, discharge container 2 is provided with the pressure relief opening 4 that can make the negative pressure generating device 3 of the interior generation negative pressure of discharge container 2 and make the interior negative pressure disappearance of discharge container 2.
It is 15ml that target is got liquid bulking value, and tube chamber volume settings is 15.2ml.
In embodiment, negative pressure generating device 3 is vacuum generator.Use vacuum generator can make the utility model and automation equipment be used in combination more easily.
In embodiment, liquid getting device suction pipe 1 is sealing setting with the contact-making surface of discharge container 2.
In embodiment, negative pressure generating device 3 is sealing setting with the contact-making surface of discharge container 2.
In embodiment, the bottom of discharge container 2 is provided with leakage hole 5.
In embodiment, pressure relief opening 4 is arranged on the top of discharge container 2.
The using method of quantitative liquid getting device is with the first embodiment.
The 3rd embodiment:
Quantitative liquid getting device, include liquid getting device suction pipe 1, wherein, liquid getting device suction pipe 1 upper end insert in discharge container 2 and the tube chamber volume of liquid getting device suction pipe 1 and target to get liquid bulking value suitable, discharge container 2 is provided with the pressure relief opening 4 that can make the negative pressure generating device 3 of the interior generation negative pressure of discharge container 2 and make the interior negative pressure disappearance of discharge container 2.
It is 5ml that target is got liquid bulking value, and tube chamber volume settings is 4.9ml.
In embodiment, negative pressure generating device 3 is negative pressure gasbag.
In embodiment, liquid getting device suction pipe 1 is sealing setting with the contact-making surface of discharge container 2.
In embodiment, negative pressure generating device 3 is sealing setting with the contact-making surface of discharge container 2.
In embodiment, the bottom of discharge container 2 is provided with leakage hole 5.
In embodiment, pressure relief opening 4 is arranged on the top of discharge container 2.
The using method of quantitative liquid getting device is with the first embodiment.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although by the utility model being described with reference to preferred embodiment of the present utility model, but those of ordinary skill in the art is to be understood that, can to it, make various changes in the form and details, and not depart from the spirit and scope of the present utility model that appended claims limits.
Claims (6)
1. quantitative liquid getting device, include liquid getting device suction pipe (1), it is characterized in that: described liquid getting device suction pipe (1) upper end insert in discharge container (2) and the tube chamber volume of described liquid getting device suction pipe (1) and target to get liquid bulking value suitable, described discharge container (2) is provided with and can makes the pressure relief opening (4) that produces the negative pressure generating device (3) of negative pressure and make the interior negative pressure disappearance of discharge container (2) in discharge container (2).
2. quantitative liquid getting device according to claim 1, is characterized in that: described liquid getting device suction pipe (1) is sealing setting with the contact-making surface of discharge container (2).
3. quantitative liquid getting device according to claim 1, is characterized in that: described negative pressure generating device (3) is negative pressure gasbag or vacuum generator.
4. quantitative liquid getting device according to claim 1, is characterized in that: described negative pressure generating device (3) is sealing setting with the contact-making surface of discharge container (2).
5. according to the quantitative liquid getting device described in the arbitrary claim of claim 1 to 4, it is characterized in that: the bottom of described discharge container (2) is provided with leakage hole (5).
6. according to the quantitative liquid getting device described in the arbitrary claim of claim 1 to 4, it is characterized in that: described pressure relief opening (4) is arranged on the top of discharge container (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420159585.7U CN203790959U (en) | 2014-04-03 | 2014-04-03 | Quantitative liquid suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420159585.7U CN203790959U (en) | 2014-04-03 | 2014-04-03 | Quantitative liquid suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203790959U true CN203790959U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420159585.7U Expired - Fee Related CN203790959U (en) | 2014-04-03 | 2014-04-03 | Quantitative liquid suction device |
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| Country | Link |
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| CN (1) | CN203790959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894250A (en) * | 2014-04-03 | 2014-07-02 | 南京交通职业技术学院 | Quantitative liquid fetching device and use method thereof |
| WO2021121147A1 (en) * | 2019-12-19 | 2021-06-24 | 石家庄禾柏生物技术股份有限公司 | Quantitative sampling dropper |
-
2014
- 2014-04-03 CN CN201420159585.7U patent/CN203790959U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894250A (en) * | 2014-04-03 | 2014-07-02 | 南京交通职业技术学院 | Quantitative liquid fetching device and use method thereof |
| CN103894250B (en) * | 2014-04-03 | 2016-04-27 | 南京交通职业技术学院 | Quantitative liquid getting device and using method thereof |
| WO2021121147A1 (en) * | 2019-12-19 | 2021-06-24 | 石家庄禾柏生物技术股份有限公司 | Quantitative sampling dropper |
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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: 20140827 Termination date: 20150403 |
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| EXPY | Termination of patent right or utility model |