CN220878932U - Trace drip suction device - Google Patents
Trace drip suction device Download PDFInfo
- Publication number
- CN220878932U CN220878932U CN202322587950.6U CN202322587950U CN220878932U CN 220878932 U CN220878932 U CN 220878932U CN 202322587950 U CN202322587950 U CN 202322587950U CN 220878932 U CN220878932 U CN 220878932U
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- China
- Prior art keywords
- suction
- pipe
- drip
- negative pressure
- micro
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- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000000605 extraction Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a micro-drip absorbing device, comprising: the equipment shell is provided with a negative pressure quantitative control suction structure; the negative pressure quantitative control suction structure comprises: the device comprises a fixing frame, a negative pressure suction cavity, a suction pump, an exhaust pipe, a gas flow control valve, a liquid suction pipe and a cleaning assembly; the utility model relates to the technical field of liquid suction equipment, and the beneficial effects of the scheme are as follows: the problem of current dropping liquid suction structure all is through the suction of internal piston motion drip, and the suction volume can't carry out accurate control, influences the accuracy nature that detects, and the inside inconvenient washing of equipment easily causes dropping liquid mixed pollution simultaneously is solved.
Description
Technical Field
The utility model relates to the technical field of liquid suction equipment, in particular to a micro-drip suction device.
Background
Routine operations of microsampling, dilution and use for detection: firstly, adding quantitative diluent into a diluent bottle according to a preset multiple; then, quantitatively sucking the sample to be tested into a diluent bottle by using a capillary or a pipettor, and uniformly mixing; finally, the pipettor of specific scale is changed again, the sample after diluting and mixing is dripped into reaction unit or detector, and current dropping liquid suction structure all is through the inside piston motion suction of dropping liquid, and the accurate control can't be carried out to the suction volume, influences the accuracy nature of detection, and the inside inconvenient washing of equipment easily causes dropping liquid mixed pollution simultaneously.
Disclosure of utility model
In order to achieve the above purpose, the utility model is realized by the following technical scheme: a micro-drip draw device comprising: the equipment shell is provided with a negative pressure quantitative control suction structure;
The negative pressure quantitative control suction structure comprises: the device comprises a fixing frame, a negative pressure suction cavity, a suction pump, an exhaust pipe, a gas flow control valve, a liquid suction pipe and a cleaning assembly;
The fixing frame is arranged on the equipment shell, the negative pressure suction cavity is arranged inside the equipment shell, the suction pump is arranged on the fixing frame, the exhaust pipe is arranged on the exhaust port of the suction pump, the air inlet of the suction pump is embedded on the equipment shell, the gas flow control valve is embedded on the equipment shell, the liquid suction pipe is arranged on the gas flow control valve, and the cleaning component is arranged on the equipment shell and the liquid suction pipe.
Preferably, the fixing frame is mounted on the equipment housing by a fixing bolt.
Preferably, the exhaust pipe is a corrugated hose.
Preferably, a relief valve is embedded on the equipment shell.
Preferably, the cleaning assembly comprises: the device comprises a booster pump, a pair of fixing seats, a water inlet pipe and a water conveying pipe;
The pair of fixing seats are arranged on the booster pump, the booster pump is arranged on the equipment shell through the pair of fixing seats, the water inlet pipe is arranged on the water inlet at the upper end of the booster pump, the upper end of the conveying water pipe is arranged on the booster pump, and the lower end of the conveying water pipe is embedded on the liquid suction pipe.
Preferably, the pair of holders are mounted on the equipment housing by means of fixing pins.
Advantageous effects
The utility model provides a micro-drip sucking device which has the beneficial effects that the negative pressure quantitative control sucking structure is adopted, the sucking amount is accurately controlled in a negative pressure flow mode, the detection result is ensured, meanwhile, the high-pressure flushing structure is added, the interior can be quickly cleaned after the use is finished, drip mixing is prevented, the problems that the existing drip sucking structure can not accurately control the sucking amount by sucking drip through the movement of an internal piston, the detection accuracy is affected, meanwhile, the interior of equipment is inconvenient to clean, and drip mixing pollution is easy to cause are solved.
Drawings
Fig. 1 is a schematic diagram showing a sectional front view of a micro drip suction device according to the present utility model.
Fig. 2 is a schematic side view of a micro-droplet sucking device according to the present utility model.
Fig. 3 is a schematic view of a partially enlarged sectional front view of a micro drip suction device according to the present utility model.
In the figure: 1. an equipment housing; 2. a fixing frame; 3. a negative pressure suction chamber; 4. a getter pump; 5. an exhaust pipe; 6. a gas flow control valve; 7. a pipette; 8. a fixing bolt; 9. a pressure release valve; 10. a booster pump; 11. a fixing seat; 12. a water inlet pipe; 13. a delivery water pipe; 14. a fixing pin.
Detailed Description
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples: referring to fig. 1-3, when the suction structure is controlled quantitatively by negative pressure, the device is started by controlling a controller matched with the device, the suction pump 4 mounted on the device housing 1 through the fixing frame 2 is started to pump out the air in the negative pressure suction cavity 3 to form a negative pressure environment in the device, meanwhile, the controller controls the air flow control valve 6 mounted at the lower end of the device housing 1 to pump in the air in the liquid suction cavity 3 and precisely control the flow through the air flow control valve 6, so that the flow of liquid suction in the liquid suction pipe 7 is precisely controlled, when the liquid suction is completed, the booster pump 10 mounted on the fixing seat 11 on the device housing 1 is started, and the pressurized cleaning water is conveyed into the liquid suction pipe 7 through the isomorphic conveying water pipe 13 in cooperation with the water inlet pipe 12 to clean the interior of the liquid suction pipe 7.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A micro-drip draw device comprising: the equipment casing (1) is characterized in that a negative pressure quantitative control suction structure is arranged on the equipment casing (1);
the negative pressure quantitative control suction structure comprises: the device comprises a fixing frame (2), a negative pressure suction cavity (3), a suction pump (4), an exhaust pipe (5), a gas flow control valve (6), a liquid suction pipe (7) and a cleaning assembly;
The fixing frame (2) is installed on the equipment shell (1), the negative pressure suction cavity (3) is formed in the equipment shell (1), the suction pump (4) is installed on the fixing frame (2), the exhaust pipe (5) is installed on the exhaust port of the suction pump (4), the air inlet of the suction pump (4) is embedded on the equipment shell (1), the gas flow control valve (6) is embedded on the equipment shell (1), the liquid suction pipe (7) is installed on the gas flow control valve (6), and the cleaning component is installed on the equipment shell (1) and the liquid suction pipe (7).
2. A micro-drip suction device according to claim 1, characterized in that the holder (2) is mounted on the device housing (1) by means of a fixing bolt (8).
3. A micro-drip suction device according to claim 1, characterized in that the exhaust tube (5) is a corrugated hose.
4. The micro-drip absorbing device according to claim 1, characterized in that a pressure release valve (9) is embedded on the equipment housing (1).
5. The micro-drip extraction device of claim 1, wherein the cleaning assembly comprises: a booster pump (10), a pair of fixing seats (11), a water inlet pipe (12) and a water conveying pipe (13);
A pair of fixing seats (11) are arranged on a booster pump (10), the booster pump (10) is arranged on an equipment shell (1) through the pair of fixing seats (11), a water inlet pipe (12) is arranged on a water inlet at the upper end of the booster pump (10), the upper end of a conveying water pipe (13) is arranged on the booster pump (10), and the lower end of the conveying water pipe (13) is embedded on a liquid suction pipe (7).
6. A micro-drip absorbing device according to claim 5, characterized in that a pair of holders (11) are mounted on the device housing (1) by means of fixing pins (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322587950.6U CN220878932U (en) | 2023-09-22 | 2023-09-22 | Trace drip suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322587950.6U CN220878932U (en) | 2023-09-22 | 2023-09-22 | Trace drip suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220878932U true CN220878932U (en) | 2024-05-03 |
Family
ID=90871056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322587950.6U Active CN220878932U (en) | 2023-09-22 | 2023-09-22 | Trace drip suction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220878932U (en) |
-
2023
- 2023-09-22 CN CN202322587950.6U patent/CN220878932U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |