CN215134748U - Air-blowing type liquid hanging prevention device - Google Patents
Air-blowing type liquid hanging prevention device Download PDFInfo
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- CN215134748U CN215134748U CN202121054169.7U CN202121054169U CN215134748U CN 215134748 U CN215134748 U CN 215134748U CN 202121054169 U CN202121054169 U CN 202121054169U CN 215134748 U CN215134748 U CN 215134748U
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- air
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- infusion
- passageway
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Abstract
The utility model discloses a hanging liquid device is prevented to air-blowing formula, including titrating headstock and transfusion needle, intake passage and infusion passageway are seted up to the titration headstock, transfusion needle wears to locate transfusion passageway and stretches out transfusion passageway, and intake passage is located one side of transfusion passageway, and intake passage is equipped with air inlet and gas outlet, and the gas outlet is towards transfusion needle's end. When titration is finished, the air inlet blows air, the air flow is sprayed out from the air outlet and directly acts on the tail end of the infusion needle, and the tension of water drops is broken through the air flow, so that the water drops fall off. The utility model discloses the mode of directly blowing off like this, it is not only laborsaving but also high-efficient, simple structure moreover, simple to operate.
Description
Technical Field
The utility model belongs to the technical field of the laboratory glassware technique and specifically relates to indicate a hanging liquid device is prevented to air-blowing formula.
Background
During titration, the end of the infusion needle (also called infusion tube) usually has residual liquid, and this phenomenon is called hanging up. At present, in the process of dripping trace liquid, the liquid is usually directly dripped by an infusion needle, and at the moment, the hanging liquid can seriously influence the test effect and damage the accuracy.
Chinese patent No. 201420037411.3 discloses a drip-proof filling needle, in which the blowing action is on the outer wall of the needle tube, and the drip is shaken off by the vibration of the tube wall, but this indirect drip removal is of little effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hanging liquid device is prevented to air-blast formula directly blows off the hanging liquid, and the effect is showing.
To achieve the above object, the solution of the present invention is: the utility model provides a hanging liquid device is prevented to air-blowing formula, includes titration headstock and transfusion needle, inlet channel and infusion passageway are seted up to the titration headstock, the transfusion needle wears to locate the infusion passageway and stretches out the infusion passageway, and inlet channel is located one side of infusion passageway, and inlet channel is equipped with air inlet and gas outlet, and the gas outlet is towards the end of transfusion needle.
Further, the air outlet is obliquely arranged towards the tail end of the infusion needle.
Furthermore, the air outlet is inserted with an air outlet pipe, and the air outlet pipe extends out of the air outlet and is close to the tail end of the transfusion needle.
Further, the air inlet is hermetically plugged with an air inlet joint for connecting air.
Furthermore, the infusion channel is provided with a liquid inlet and a liquid outlet, the liquid outlet is used for the penetration of the infusion needle, and the liquid inlet is inserted in a sealing way and is used for being connected with a liquid inlet connector of liquid.
After the scheme is adopted, the utility model discloses a gain effect lies in:
when titration is finished, the air inlet blows air, the air flow is sprayed out from the air outlet and directly acts on the tail end of the infusion needle, and the tension of water drops is broken through the air flow, so that the water drops fall off. The direct blowing mode is labor-saving and efficient, and is simple in structure and convenient to install.
Drawings
Fig. 1 is a schematic structural view of the air-blowing type liquid-hanging prevention device of the present invention.
Description of reference numerals: 1-titration head seat; 11-an intake passage; 111-an air inlet; 112-air outlet; 12-an infusion channel; 121-liquid inlet; 122-a liquid outlet; 2-transfusion needle; 3-an air inlet joint; 4-liquid inlet joint; and 5, an air outlet pipe.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The utility model relates to a hanging liquid device is prevented to air-blowing formula, as shown in figure 1, including titration headstock 1 and transfusion needle 2, inlet channel 11 and infusion passageway 12 are seted up to titration headstock 1, transfusion needle 2 wears to locate infusion passageway 12 and stretches out infusion passageway 12, and inlet channel 11 is located one side of infusion passageway 12, and inlet channel 11 is equipped with air inlet 111 and gas outlet 112, and air inlet 111 level sets up, and gas outlet 112 is towards the end of transfusion needle 2. Preferably, the gas outlet 112 is obliquely arranged towards the tail end of the infusion needle 2, and an included angle is formed between the gas outlet 112 and the infusion needle 2, so that gas can reach the tail end of the infusion needle 2 through a shortest path. Similarly, in order to shorten the distance between the air outlet 112 and the tail end of the transfusion needle 2, the air outlet 112 is inserted with an air outlet pipe 5, and the air outlet pipe 5 extends out of the air outlet 112 and is close to the tail end of the transfusion needle 2.
When the titration is finished, the air inlet 111 blows air, the air flow is sprayed out from the air outlet pipe 5 of the air outlet 112 and directly acts on the tail end of the transfusion needle 2, and the tension of water drops is broken through the air flow, so that the water drops fall.
The air inlet 111 can be plugged in the air inlet connector 3 for connecting air in a sealing manner, so that the mouth can be conveniently aligned to blow air, and the automatic air inlet device can be conveniently connected. Similarly, the infusion channel 12 is provided with a liquid inlet 121 and a liquid outlet 122, the liquid outlet 122 is used for the penetration of the infusion needle 2, the liquid inlet 121 is hermetically inserted into the liquid inlet connector 4 for connecting liquid, and the liquid inlet connector 4 is conveniently connected into the automatic liquid inlet device.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present application, and all equivalent changes made according to the design key of the present application fall within the protection scope of the present application.
Claims (5)
1. The utility model provides a liquid hanging device is prevented to air-blowing formula, a serial communication port, including titrating headstock and transfusion needle, intake passage and infusion passageway are seted up to the titration headstock, the transfusion needle wears to locate the infusion passageway and stretches out the infusion passageway, and intake passage is located one side of infusion passageway, and intake passage is equipped with air inlet and gas outlet, and the gas outlet is towards the end of transfusion needle.
2. The air-blowing type anti-hang liquid device as claimed in claim 1, wherein the air outlet is obliquely arranged towards the end of the infusion needle.
3. The air-blowing type anti-hang liquid device as claimed in claim 1, wherein the air outlet is inserted with an air outlet pipe, and the air outlet pipe extends out of the air outlet and is close to the end of the infusion needle.
4. The air-blowing type anti-hang liquid device as claimed in claim 1, wherein the air inlet is hermetically plugged with an air inlet joint for receiving air.
5. The air-blowing type anti-hang liquid device as claimed in claim 1, wherein the liquid conveying channel is provided with a liquid inlet and a liquid outlet, the liquid outlet is used for the liquid conveying needle to penetrate through, and the liquid inlet is hermetically plugged with a liquid inlet joint for connecting liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054169.7U CN215134748U (en) | 2021-05-17 | 2021-05-17 | Air-blowing type liquid hanging prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054169.7U CN215134748U (en) | 2021-05-17 | 2021-05-17 | Air-blowing type liquid hanging prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215134748U true CN215134748U (en) | 2021-12-14 |
Family
ID=79370571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121054169.7U Active CN215134748U (en) | 2021-05-17 | 2021-05-17 | Air-blowing type liquid hanging prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215134748U (en) |
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2021
- 2021-05-17 CN CN202121054169.7U patent/CN215134748U/en active Active
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