CN205109666U - Quantitative liquid adding device - Google Patents
Quantitative liquid adding device Download PDFInfo
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- CN205109666U CN205109666U CN201520833509.4U CN201520833509U CN205109666U CN 205109666 U CN205109666 U CN 205109666U CN 201520833509 U CN201520833509 U CN 201520833509U CN 205109666 U CN205109666 U CN 205109666U
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- liquid
- tube
- pipette
- syringe needle
- discharging tube
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Abstract
The utility model relates to a quantitative liquid adding device, including fluid distribution device and liquid feeding device, fluid distribution device includes pipette, fluid -discharge tube, liquid feeding pipe, imbibition syringe needle, flowing back syringe needle and check valve, the liquid feeding device sets up in the one end of liquid feeding pipe, the one end of pipette and fluid -discharge tube communicates the setting with the other end that the liquid feeding was managed respectively, the imbibition syringe needle sets up in the other end of pipette, the flowing back syringe needle sets up in the other end of fluid -discharge tube, be equipped with the check valve on pipette and the fluid -discharge tube respectively, the liquid feeding device includes with fluid cylinder, piston core bar and differentiator. The utility model discloses a quantitative liquid adding device has can prevent that liquid from polluting, the work efficiency height just is applicable to the beneficial effect with the quantitative liquid feeding circumstances that the liquid measure is little.
Description
Technical field
The utility model relates to liquid transferring apparatus, particularly quantitative charger.
Background technology
Quantitative charger of the prior art is divided into built-in type and fitted outside two kinds, and it utilizes the plunger reciprocates of injector syringe and two one-way pistons to make liquid quantitative, directed movement, thus carry out liquid feeding.Being applicable to the unit laboratories such as hospital, universities and colleges, scientific research, when carrying out chemical analysis test, various test solution, radio isotope, biologic product etc. being made to the utensil of continuous and quantitative liquid feeding.
Built-in type is made up of reservoir and charger two parts.Charger is a plastics screw-socket bottle cap, and bottle cap connection is equipped with the outlet pipe of one-way piston and the injector syringe of water inlet pipe, in order to control the turnover of test solution.The location stalk of a graduated metal mark and moveable positioning sleeve is had, in order to control the accuracy adding test solution quantity on bottle cap.Bottle cap connects a glass bend with plastic tube effective in derive test solution use.One section of frosted mouth is had, in order to connect plastics suction nozzle coutroi velocity at the tail end of glass bend pipe.Wherein, bottle cap increases a liquid filling hole, its scale location stalk inner core is metal, and outside rigid plastics does toothing location, more convenient and correct when the capacity of adjustment.Reservoir is the vial of band screw-socket, uses in order to seasoning test solution.Its screw-socket matches with bottle cap screw-socket.Fitted outside be the injector syringe of the outlet pipe and water inlet pipe with unidirectional automatic piston and the location with scale mark are obstructed, positioning sleeve is installed together.
Quantitative charger of the prior art needs repeatedly reciprocal to be transferred to the container of liquid to be added from the container depositing liquid in use, and operation inconvenience, also inevitably causes the pollution of liquid, also make operating efficiency reduce in transfer process; The stability of its filling operation is inadequate simultaneously, makes the precision of liquid volume added less, cannot be applicable to the situation of the little quantitative liquid feeding of liquid volume added.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of and prevent liquid contamination, operating efficiency high and be applicable to the quantitative charger of the little quantitative liquid feeding situation of liquid volume added.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
Quantitative charger, comprise liquid dispensing device and liquid-adding device, described liquid dispensing device comprises pipette, discharging tube, liquid-feeding tube, imbibition syringe needle, drainage syringe needle and check valve, described liquid-adding device is arranged at one end of liquid-feeding tube, described pipette is communicated with the other end of liquid-feeding tube respectively with one end of discharging tube and arranges, described imbibition syringe needle is arranged at the other end of pipette, described drainage syringe needle is arranged at the other end of discharging tube, described pipette and discharging tube are respectively equipped with check valve, check valve in described pipette can open setting towards the other end direction of described liquid-feeding tube, check valve on described discharging tube can open setting towards the other end direction of described discharging tube, described liquid-adding device comprises liquid-adding tube, piston core bar and differentiator, one end of described liquid-adding tube is communicated with one end of liquid-feeding tube and arranges, one end of described piston core bar is stretched in liquid-adding tube by the other end of described liquid-adding tube, the other end of described piston core bar is fixed on the other end of described liquid-adding tube, between the other end that described differentiator is arranged at described piston core bar and the other end of described liquid-adding tube.
Further, described drainage syringe needle is two-chamber syringe needle.
Further, the Y-shaped setting of described pipette, discharging tube and liquid-feeding tube.
Further, the cylinder body bottom of described liquid-adding tube is provided with thickening part, and cave in towards the cylinder body bottom direction of liquid-adding tube in described thickening part, the surperficial semicircular in shape of depression.
Further, the outer surface of the cylindrical shell of described liquid-adding tube is provided with graduated scale along its length.
Further, also comprise fluid reservoir and liquid collecting tank, described fluid reservoir is fixed on the other end of pipette, and described liquid collecting tank is fixed on the other end of discharging tube, and described imbibition syringe needle stretches in fluid reservoir, and described drainage syringe needle stretches in liquid collecting tank.
The beneficial effects of the utility model are:
(1) liquid dispensing device comprises pipette, discharging tube, liquid-feeding tube, imbibition syringe needle, drainage syringe needle and check valve, liquid-adding device is arranged at one end of liquid-feeding tube, thus respectively pipette and discharging tube are carried out to the operation of extracting liquid by one end of liquid-feeding tube, concrete, liquid-adding device by the propelling of differentiator control piston core bar or the stroke size of release, thus controls accurately to liquid absorption; When piston core bar is released, one-way valve opens in pipette, check valve on discharging tube closes, liquid to be extracted can be come in by pipette, when piston core bar advances, check valve in pipette closes, the one-way valve opens on discharging tube, and liquid to be extracted is discharged from drainage syringe needle via discharging tube; Along with repeating of the propelling of piston core bar or the operation of release, liquid continuous entering from pipette to be extracted, then discharge from discharging tube, do not need mobile any device, thus avoid liquid to be extracted that the problem polluted occurs, increase work efficiency simultaneously;
(2) design comprises the liquid dispensing device of pipette, discharging tube and liquid-feeding tube, coordinated by pipette, discharging tube and liquid-feeding tube, the carrying out of liquid stabilising to be extracted is shifted, there is provided basis for realizing high-precision liquid volume added, thus go for the situation of the little quantitative liquid feeding of liquid volume added.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the quantitative charger of the utility model embodiment.
Label declaration:
1, liquid dispensing device; 11, pipette; 12, discharging tube; 13, liquid-feeding tube; 14, imbibition syringe needle; 15, drainage syringe needle; 16, check valve; 2, liquid-adding device; 21, liquid-adding tube; 22, piston core bar; 23, differentiator.
Detailed description of the invention
By describing technology contents of the present utility model in detail, realized object and effect, accompanying drawing is coordinated to be explained below in conjunction with embodiment.
The design of the utility model most critical is: the liquid dispensing device being comprised pipette, discharging tube and liquid-feeding tube by design, the carrying out of liquid stabilising to be extracted is shifted, thus liquid contamination can be prevented, increase work efficiency and be applicable to the little quantitative liquid feeding situation of liquid volume added.
Please refer to Fig. 1, quantitative charger, comprise liquid dispensing device 1 and liquid-adding device 2, described liquid dispensing device 1 comprises pipette 11, discharging tube 12, liquid-feeding tube 13, imbibition syringe needle 14, drainage syringe needle 15 and check valve 16, described liquid-adding device 2 is arranged at one end of liquid-feeding tube 13, described pipette 11 is communicated with the other end of liquid-feeding tube 13 respectively with one end of discharging tube 12 and arranges, described imbibition syringe needle 14 is arranged at the other end of pipette 11, described drainage syringe needle 15 is arranged at the other end of discharging tube 12, described pipette 11 and discharging tube 12 are respectively equipped with check valve 16, check valve 16 in described pipette 11 can open setting towards the other end direction of described liquid-feeding tube 13, check valve 16 on described discharging tube 12 can open setting towards the other end direction of described discharging tube 12, described liquid-adding device 2 comprises liquid-adding tube 21, piston core bar 22 and differentiator 23, one end of described liquid-adding tube 21 is communicated with one end of liquid-feeding tube 13 and arranges, one end of described piston core bar 22 is stretched in liquid-adding tube 21 by the other end of described liquid-adding tube 21, the other end of described piston core bar 22 is fixed on the other end of described liquid-adding tube 21, between the other end that described differentiator 23 is arranged at described piston core bar 22 and the other end of described liquid-adding tube 21.
From foregoing description, the beneficial effects of the utility model are:
(1) liquid dispensing device comprises pipette, discharging tube, liquid-feeding tube, imbibition syringe needle, drainage syringe needle and check valve, liquid-adding device is arranged at one end of liquid-feeding tube, thus respectively pipette and discharging tube are carried out to the operation of extracting liquid by one end of liquid-feeding tube, concrete, liquid-adding device by the propelling of differentiator control piston core bar or the stroke size of release, thus controls accurately to liquid absorption; When piston core bar is released, one-way valve opens in pipette, check valve on discharging tube closes, liquid to be extracted can be come in by pipette, when piston core bar advances, check valve in pipette closes, the one-way valve opens on discharging tube, and liquid to be extracted is discharged from drainage syringe needle via discharging tube; Along with repeating of the propelling of piston core bar or the operation of release, liquid continuous entering from pipette to be extracted, then discharge from discharging tube, do not need mobile any device, thus avoid liquid to be extracted that the problem polluted occurs, increase work efficiency simultaneously;
(2) design comprises the liquid dispensing device of pipette, discharging tube and liquid-feeding tube, coordinated by pipette, discharging tube and liquid-feeding tube, the carrying out of liquid stabilising to be extracted is shifted, there is provided basis for realizing high-precision liquid volume added, thus go for the situation of the little quantitative liquid feeding of liquid volume added.
Further, described drainage syringe needle 15 is two-chamber syringe needle.
Seen from the above description, drainage syringe needle is preferably two-chamber syringe needle, and the speed of discharge opeing can be made to improve.
Further, described pipette 11, discharging tube 12 and the Y-shaped setting of liquid-feeding tube 13.
Seen from the above description, described pipette, discharging tube and liquid-feeding tube can Y-shapedly be arranged, and concrete set-up mode can adopt other mechanical usual ways such as support.Liquid to be extracted can be made more stable in transfer process.
Further, the cylinder body bottom of described liquid-adding tube 21 is provided with thickening part, and cave in towards the cylinder body bottom direction of liquid-adding tube in described thickening part, the surperficial semicircular in shape of depression.
Seen from the above description, the cylinder body bottom of liquid-adding tube is provided with thickening part, and weight increases, and center of gravity declines, and prevents rocking of charger in liquid feeding process, increases its stability.Thickening part is towards cylinder body bottom direction depression, and the surperficial semicircular in shape of depression, facilitates the propelling of piston core bar and the stable of release to carry out.
Further, the outer surface of the cylindrical shell of described liquid-adding tube 21 is provided with graduated scale along its length.
Seen from the above description, graduated scale can the stroke size of auxiliary judgment piston core bar.
Further, also comprise fluid reservoir and liquid collecting tank, described fluid reservoir is fixed on the other end of pipette 11, and described liquid collecting tank is fixed on the other end of discharging tube 12, and described imbibition syringe needle 14 stretches in fluid reservoir, and described drainage syringe needle 15 stretches in liquid collecting tank.
Seen from the above description, fluid reservoir is for storing liquid to be extracted, and liquid collecting tank is for collecting the liquid after transfer.
Please refer to Fig. 1, embodiment one of the present utility model is:
The quantitative charger of the present embodiment, comprise liquid dispensing device 1 and liquid-adding device 2, described liquid dispensing device 1 comprises pipette 11, discharging tube 12, liquid-feeding tube 13, imbibition syringe needle 14, drainage syringe needle 15 and check valve 16, described liquid-adding device 2 is arranged at one end of liquid-feeding tube 13, described pipette 11 is communicated with the other end of liquid-feeding tube 13 respectively with one end of discharging tube 12 and arranges, described imbibition syringe needle 14 is arranged at the other end of pipette 11, described drainage syringe needle 15 is arranged at the other end of discharging tube 12, described pipette 11 and discharging tube 12 are respectively equipped with check valve 16, check valve 16 in described pipette 11 can open setting towards the other end direction of described liquid-feeding tube 13, check valve 16 on described discharging tube 12 can open setting towards the other end direction of described discharging tube 12, described liquid-adding device 2 comprises liquid-adding tube 21, piston core bar 22 and differentiator 23, one end of described liquid-adding tube 21 is communicated with one end of liquid-feeding tube 13 and arranges, one end of described piston core bar 22 is stretched in liquid-adding tube 21 by the other end of described liquid-adding tube 21, the other end of described piston core bar 22 is fixed on the other end of described liquid-adding tube 21, between the other end that described differentiator 23 is arranged at described piston core bar 22 and the other end of described liquid-adding tube 21.Described drainage syringe needle 15 is two-chamber syringe needle.Described pipette 11, discharging tube 12 and the Y-shaped setting of liquid-feeding tube 13.The cylinder body bottom of described liquid-adding tube 21 is provided with thickening part, and cave in towards the cylinder body bottom direction of liquid-adding tube in described thickening part, the surperficial semicircular in shape of depression.The outer surface of the cylindrical shell of described liquid-adding tube 21 is provided with graduated scale along its length.Also comprise fluid reservoir and liquid collecting tank, described fluid reservoir is fixed on the other end of pipette 11, and described liquid collecting tank is fixed on the other end of discharging tube 12, and described imbibition syringe needle 14 stretches in fluid reservoir, and described drainage syringe needle 15 stretches in liquid collecting tank.
In sum, the quantitative charger that the utility model provides has and liquid contamination, operating efficiency can be prevented high and the beneficial effect being applicable to the little quantitative liquid feeding situation of liquid volume added.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalents utilizing the utility model description and accompanying drawing content to do; or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. quantitative charger, it is characterized in that, comprise liquid dispensing device and liquid-adding device, described liquid dispensing device comprises pipette, discharging tube, liquid-feeding tube, imbibition syringe needle, drainage syringe needle and check valve, described liquid-adding device is arranged at one end of liquid-feeding tube, described pipette is communicated with the other end of liquid-feeding tube respectively with one end of discharging tube and arranges, described imbibition syringe needle is arranged at the other end of pipette, described drainage syringe needle is arranged at the other end of discharging tube, described pipette and discharging tube are respectively equipped with check valve, check valve in described pipette can open setting towards the other end direction of described liquid-feeding tube, check valve on described discharging tube can open setting towards the other end direction of described discharging tube, described liquid-adding device comprises liquid-adding tube, piston core bar and differentiator, one end of described liquid-adding tube is communicated with one end of liquid-feeding tube and arranges, one end of described piston core bar is stretched in liquid-adding tube by the other end of described liquid-adding tube, the other end of described piston core bar is fixed on the other end of described liquid-adding tube, between the other end that described differentiator is arranged at described piston core bar and the other end of described liquid-adding tube.
2. quantitative charger according to claim 1, is characterized in that, described drainage syringe needle is two-chamber syringe needle.
3. quantitative charger according to claim 1, is characterized in that, the Y-shaped setting of described pipette, discharging tube and liquid-feeding tube.
4. quantitative charger according to claim 1, is characterized in that, the cylinder body bottom of described liquid-adding tube is provided with thickening part, and cave in towards the cylinder body bottom direction of liquid-adding tube in described thickening part, the surperficial semicircular in shape of depression.
5. quantitative charger according to claim 1, is characterized in that, the outer surface of the cylindrical shell of described liquid-adding tube is provided with graduated scale along its length.
6. quantitative charger according to claim 1, is characterized in that, also comprises fluid reservoir and liquid collecting tank, described fluid reservoir is fixed on the other end of pipette, described liquid collecting tank is fixed on the other end of discharging tube, and described imbibition syringe needle stretches in fluid reservoir, and described drainage syringe needle stretches in liquid collecting tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833509.4U CN205109666U (en) | 2015-10-26 | 2015-10-26 | Quantitative liquid adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833509.4U CN205109666U (en) | 2015-10-26 | 2015-10-26 | Quantitative liquid adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205109666U true CN205109666U (en) | 2016-03-30 |
Family
ID=55565315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520833509.4U Expired - Fee Related CN205109666U (en) | 2015-10-26 | 2015-10-26 | Quantitative liquid adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205109666U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110731859A (en) * | 2019-10-25 | 2020-01-31 | 上海暖友实业有限公司 | steam eyeshade water-fetching device |
-
2015
- 2015-10-26 CN CN201520833509.4U patent/CN205109666U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110731859A (en) * | 2019-10-25 | 2020-01-31 | 上海暖友实业有限公司 | steam eyeshade water-fetching device |
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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: 20160330 Termination date: 20211026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |