CN215326886U - Magnetic drip-proof filling needle head for liquid filling - Google Patents
Magnetic drip-proof filling needle head for liquid filling Download PDFInfo
- Publication number
- CN215326886U CN215326886U CN202023189940.XU CN202023189940U CN215326886U CN 215326886 U CN215326886 U CN 215326886U CN 202023189940 U CN202023189940 U CN 202023189940U CN 215326886 U CN215326886 U CN 215326886U
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- magnetic
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- needle
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Abstract
The utility model discloses a magnetic anti-drip filling needle head for liquid filling, which comprises an upper needle tube and a lower needle tube, wherein a containing cavity is arranged between the upper needle tube and the lower needle tube, and an anti-drip assembly is arranged in the containing cavity; the drip-proof assembly comprises a spring and a magnetic ball, and the spring is radially arranged in the containing cavity; one end of the spring is fixedly connected with the inner wall of one side of the accommodating cavity, the other end of the spring is fixedly connected with one end of the magnetic ball, and the outer wall of the other side of the accommodating cavity is fixedly connected with the magnetic block; a plurality of liquid guide pieces are sequentially arranged on the inner wall of the upper needle tube from top to bottom, and the liquid guide pieces are located on the same side as the spring. The utility model has the effects of drip and backflow prevention.
Description
Technical Field
The utility model relates to the field of liquid filling, in particular to a magnetic anti-drip filling needle for liquid filling.
Background
Laboratory liquid ration partial shipment, the accurate filling of batch production of mill all need use the liquid filling, and traditional filling syringe needle plays the effect that prevents the drippage simultaneously at the filling to lead to liquid splash to fall on filling platform surface, arouse the pollution easily to the laboratory, then can lead to final filling volume inaccurate to the mill. The traditional filling needle head can not prevent back suction, so that the volume of the subpackaged final products is uneven.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a magnetic anti-drip filling needle for liquid filling, which can play the effects of drip prevention and backflow prevention.
The technical scheme adopted by the utility model is as follows: a magnetic anti-drip filling needle for liquid filling comprises an upper needle tube and a lower needle tube, wherein a containing cavity is arranged between the upper needle tube and the lower needle tube, and an anti-drip assembly is arranged in the containing cavity; the drip-proof assembly comprises a spring and a magnetic ball, and the spring is radially arranged in the containing cavity; one end of the spring is fixedly connected with the inner wall of one side of the accommodating cavity, the other end of the spring is fixedly connected with one end of the magnetic ball, the outer wall of the other side of the accommodating cavity is fixedly connected with a magnetic block, the magnetic block is fixedly connected with the accommodating cavity, a plurality of liquid guide pieces are sequentially arranged on the inner wall of the upper needle tube from top to bottom, and the liquid guide pieces are arranged on the same side of the spring.
The utility model has the beneficial effects that: thereby it squeezes away the magnetic ball to get into from last syringe needle at filling in-process liquid, and the passageway is opened, and after the peristaltic pump stopped, the magnetic ball resets under the effect of spring and magnetic path to block up the import, the filling passageway is closed, plays antidrip and anti-reflux's effect.
On the basis of the technical scheme, the utility model can be further improved as follows:
furthermore, the liquid guide pieces are sequentially lengthened from top to bottom.
Furthermore, the magnetic block is arc-shaped and is matched with the magnetic ball.
Further, the surface of the magnetic ball is coated with a layer of polytetrafluoroethylene.
Further, the housing of the needle is made of 304 stainless steel.
The beneficial effect of adopting the improvement is that: the flow guide effect is better; the magnetic force between the magnetic block and the magnetic ball is larger, so that the sealing effect is improved; the heat resistance of the magnetic ball can be improved by using the polytetrafluoroethylene; the use of 304 stainless steel improves the heat resistance of the needle, enabling high temperature sterilization.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the needle cannula of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises an upper needle tube, a lower needle tube, a spring, a magnetic ball, a magnet and a liquid guide sheet, wherein the upper needle tube 2 is connected with the lower needle tube 3, the spring is connected with the magnetic ball 4, and the magnet is connected with the liquid guide sheet 6.
Detailed Description
The utility model will be described in further detail with reference to the following drawings, which are given by way of example only for the purpose of illustrating the utility model and are not intended to limit the scope of the utility model.
As shown in fig. 1-2, a magnetic anti-drip filling needle for liquid filling comprises an upper needle tube 1 and a lower needle tube 2, wherein a cavity is arranged between the upper needle tube 1 and the lower needle tube 2, and an anti-drip component is arranged in the cavity; the anti-leakage component comprises a spring 3 and a magnetic ball 4, and the spring 3 is radially arranged in the containing cavity; one end of the spring 3 is fixedly connected with the inner wall of one side of the accommodating cavity, the other end of the spring is fixedly connected with one end of the magnetic ball 4, and the outer wall of the other side of the accommodating cavity is fixedly connected with the magnetic block 5; the inner wall of the upper needle tube 1 is sequentially provided with a plurality of liquid guide plates 6 from top to bottom, and the liquid guide plates 6 are arranged at the same side as the spring 3.
Thereby it squeezes away magnetic ball 4 to get into from last syringe needle at filling in-process liquid, and the passageway is opened, and after the peristaltic pump stopped, magnetic ball 4 resets under the effect of spring 3 and magnetic path 5 to plug up the import, the filling passageway is closed, plays antidrip and anti-reflux's effect.
A plurality of liquid guide piece 6 down lengthens in proper order from the top, promotes the effect of water conservancy diversion like this to more do benefit to and crowd magnetic ball 4 open, thereby open the passageway.
The surface of the magnetic ball 4 is coated with a layer of polytetrafluoroethylene, and the polytetrafluoroethylene has high temperature resistance and can improve the heat resistance of the magnetic ball 4, so that the magnetic ball can be disinfected at high temperature.
The shell of the needle head is made of 304 stainless steel, and the 304 stainless steel is high temperature resistant, so that the needle head can be sterilized at high temperature.
The working principle is as follows: when the peristaltic pump works, the upper needle tube 1 is connected with the silicone tube, the peristaltic pump is opened, liquid flows to the other side of the magnetic ball 4 under the action of the liquid guide sheet 6, the magnetic ball 4 moves to one side of the spring 3 under the action of hydraulic pressure, the channel is opened, the liquid enters the lower needle tube 2 through the channel, and after the peristaltic pump stops, the magnetic ball 4 resets under the action of the spring 3 and the magnetic block 5, so that the channel is closed, and the effect of drip and backflow prevention is achieved.
The mechanisms, components and parts of the present invention which are not described in detail are all the existing structures which exist in the prior art. Can be purchased directly from the market.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a magnetic force antidrip filling syringe needle for liquid filling, includes needle tubing (1) and lower needle tube (2), it holds chamber, its characterized in that to go up to be equipped with between needle tubing (1) and lower needle tube (2): a drip-proof component is arranged in the containing cavity; the anti-leakage component comprises a spring (3) and a magnetic ball (4), and the spring (3) is radially arranged in the containing cavity; one end of the spring (3) is fixedly connected with the inner wall of one side of the accommodating cavity, the other end of the spring is fixedly connected with one end of the magnetic ball (4), and the outer wall of the other side of the accommodating cavity is fixedly connected with the magnetic block (5); go up needle tubing (1) inner wall from last down be equipped with a plurality of liquid guide piece (6) in proper order, liquid guide piece (6) and spring (3) homonymy.
2. A magnetic drip-resistant filling needle for liquid filling according to claim 1, wherein: the liquid guide sheets (6) are sequentially lengthened from top to bottom.
3. A magnetic drip-resistant filling needle for liquid filling according to claim 1, wherein: the magnetic block (5) is arc-shaped and is matched with the magnetic ball (4).
4. A magnetic drip-resistant filling needle for liquid filling according to claim 1, wherein: the surface of the magnetic ball (4) is coated with a layer of polytetrafluoroethylene.
5. A magnetic drip-resistant filling needle for liquid filling according to claim 1, wherein: the housing of the needle is made of 304 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023189940.XU CN215326886U (en) | 2020-12-26 | 2020-12-26 | Magnetic drip-proof filling needle head for liquid filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023189940.XU CN215326886U (en) | 2020-12-26 | 2020-12-26 | Magnetic drip-proof filling needle head for liquid filling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215326886U true CN215326886U (en) | 2021-12-28 |
Family
ID=79570504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023189940.XU Active CN215326886U (en) | 2020-12-26 | 2020-12-26 | Magnetic drip-proof filling needle head for liquid filling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215326886U (en) |
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2020
- 2020-12-26 CN CN202023189940.XU patent/CN215326886U/en active Active
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