CN210787401U - A liquid-transfering gun for biological assay - Google Patents
A liquid-transfering gun for biological assay Download PDFInfo
- Publication number
- CN210787401U CN210787401U CN201921480350.7U CN201921480350U CN210787401U CN 210787401 U CN210787401 U CN 210787401U CN 201921480350 U CN201921480350 U CN 201921480350U CN 210787401 U CN210787401 U CN 210787401U
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- Prior art keywords
- head
- pipette
- pipetting
- gun
- connecting portion
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- 238000004166 bioassay Methods 0.000 title claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000002474 experimental method Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims 1
- 238000005213 imbibition Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model provides a pipetting gun for biological assay, including the pipetting gun head, the pipetting gun head includes the rifle head main part, rifle head main part upper end is connected with connecting portion, rifle head main part lower extreme is connected with the pipetting head, the inner wall of connecting portion is equipped with the screw thread, still is equipped with the link on the pipetting gun, connecting portion with link threaded connection, the inside of connecting portion is equipped with the fixed block, the fixed block top is equipped with filter screen and annular sealing pad in proper order, top-down is provided with spherical first inflation portion and columniform second inflation portion in the rifle head main part, the tapered tube that the pipetting head diminishes for the top-down pipe diameter gradually, pipetting head sealing connection has straight tube head. The utility model discloses a pipette head is sealed effectual, and still is equipped with straight tube head, helps improving the application range of pipette head, and the protection piece be provided with help protecting the pipette head, reduces the pollution of pipette head.
Description
Technical Field
The utility model relates to a pipettor technical field, concretely relates to pipette for biological assay.
Background
The pipette is a kind of pipette, which is commonly used for pipetting small or trace amounts of liquid, and needs to be careful in the using and storing processes of the pipette to avoid influencing the measuring range. The part that is used for absorbing liquid on the pipetting gun is called the pipetting gun head, the structure of traditional pipetting gun head includes the rifle head body, the connector on rifle head body top and the pipetting head of rifle head body lower extreme, but the leakproofness of pipetting gun head and pipetting gun is relatively poor, the phenomenon that the weeping phenomenon perhaps appears or the pipetting gun head drops behind the absorption liquid, and when the imbibition was too violent hard, can be with the junction of liquid imbibition pipette gun and pipetting gun head, even in the pipetting gun, thereby influence the accuracy of experimental result, consequently, the pipetting gun that is used for biological assay that can solve the current problem urgently need one kind.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art not enough, provide a liquid-transfering gun for biological assay, this liquid-transfering gun's liquid-transfering gun head is sealed effectual, and still is equipped with straight tube head, helps improving the application range of liquid-transfering gun head, and the protection piece be provided with help protecting the liquid-transfering gun head, reduce the pollution of liquid-transfering gun head.
The utility model provides a following technical scheme:
the utility model provides a pipetting gun for biological assay, includes the pipetting gun head, the pipetting gun head includes rifle head main part, rifle head main part upper end is connected with connecting portion, rifle head main part lower extreme is connected with the pipette head, the inner wall of connecting portion is equipped with the screw thread, still is equipped with the link on the pipetting gun, connecting portion with link threaded connection, the inside of connecting portion is equipped with the fixed block, the fixed block top is equipped with filter screen and annular sealing pad in proper order, top-down is provided with spherical first inflation portion and columniform second inflation portion in the rifle head main part, the pipette head is the tapered tube that the top-down pipe diameter diminishes gradually, pipette head sealing connection has straight tube head.
Preferably, the end face of the liquid inlet of the liquid suction head and the end face of the liquid inlet of the straight tube head are both inclined planes.
Preferably, the outer wall of imbibition head is equipped with the external screw thread, the inner wall of straight tube head is equipped with the internal thread, straight tube head with lotion head threaded connection, just straight tube head upper end still is equipped with the sealing washer.
Preferably, the pipette tip further comprises a protective sleeve, and an elastic layer is arranged at the upper end of the protective sleeve.
Preferably, an annular clamping block is arranged at the bottom of the second expansion part, an annular groove is formed between the annular clamping block and the outer wall of the gun head main body, and the upper end of the protective sleeve is inserted into the annular groove.
The utility model has the advantages that:
the connecting part of the pipette head and the connecting end of the pipette head are in threaded connection, which is helpful for preventing the pipette head from falling off, the arrangement of the annular sealing gasket is helpful for improving the sealing property of the connection, the arrangement of the filter screen is helpful for reducing the pollution caused in the liquid suction process, and the filter screen is convenient to replace; the utility model is provided with the first expansion part and the second expansion part on the gun head main body, when the imbibition force is too strong, the redundant liquid can enter the first expansion part and the second expansion part, the buffer volume of the solution is increased, and the liquid-transferring gun can not be polluted; the utility model is also provided with a straight pipe head which is convenient to disassemble and is beneficial to improving the application range of the liquid-transfering gun head; the utility model discloses still be equipped with protection piece for the protection pipette head reduces the pollution of pipette head.
Drawings
The accompanying drawings are included to provide a further understanding and description of the invention.
FIG. 1 is a schematic view of a pipette tip structure according to the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic view of the connection between the pipette head and the pipette head of the present invention;
FIG. 4 is a view showing a state of use of the protective cover of the present invention;
fig. 5 is an enlarged schematic view at B in the figure.
Labeled as: 1. a gun head main body; 2. a connecting portion; 3. a liquid suction head; 4. a connecting end; 5. a fixed block; 6. filtering with a screen; 7. an annular seal; 8. a first expansion section; 9. a second expansion section; 10. a straight pipe head; 11. a seal ring; 12. a protective sleeve; 13. an elastic layer; 14. an annular fixture block; 15. an annular groove.
Detailed Description
As shown in fig. 1 to 5, a liquid-transfering gun for biological experiments, including the liquid-transfering gun head, the liquid-transfering gun head includes rifle head main part 1, rifle head main part 1 upper end is connected with connecting portion 2, rifle head main part 1 lower extreme is connected with liquid-transfering head 3, the inner wall of connecting portion 2 is equipped with the screw thread, still be equipped with link 4 on the liquid-transfering gun, connecting portion 2 and link 4 threaded connection, the inside of connecting portion 2 is equipped with fixed block 5, be equipped with filter screen 6 and annular sealing pad 7 above fixed block 5 in proper order, top-down is provided with spherical first inflation portion 8 and columniform second inflation portion 9 on rifle head main.
The liquid suction head 3 is a conical tube with the tube diameter gradually reduced from top to bottom, the liquid suction head 3 is hermetically connected with a straight tube head 10, and the end face of the liquid inlet of the liquid suction head 3 and the end face of the liquid inlet of the straight tube head 10 are inclined planes. The outer wall of the liquid suction head 3 is provided with external threads, the inner wall of the straight tube head 10 is provided with internal threads, the straight tube head 10 is in threaded connection with the lotion head, and the upper end of the straight tube head 10 is also provided with a sealing ring 11.
The pipette tip further comprises a protective sleeve 12, an elastic layer 13 is arranged at the upper end of the protective sleeve 12, an annular clamping block 14 is arranged at the bottom of the second expansion part 9, an annular groove 15 is formed between the annular clamping block 14 and the outer wall of the pipette tip main body 1, and the upper end of the protective sleeve 12 is inserted into the annular groove 15.
The connecting part 2 of the pipette head and the connecting end 4 of the pipette head are in threaded connection, so that the pipette head is prevented from falling off, the arrangement of the annular sealing gasket 7 is favorable for improving the connection tightness, the arrangement of the filter screen 6 is favorable for reducing pollution caused in the pipette process, and the filter screen 6 is convenient to replace; in the embodiment, the first expansion part 8 and the second expansion part 9 are arranged on the gun head main body 1, when the liquid suction force is too strong, redundant liquid can enter the first expansion part 8 and the second expansion part 9, the buffer volume of the solution is increased, and the liquid-transferring gun cannot be polluted; the embodiment is also provided with the straight pipe head 10, and the straight pipe head 10 is convenient to disassemble, thereby being beneficial to improving the application range of the pipette tip; the embodiment is also provided with a protection piece for protecting the pipette tip and reducing the pollution of the pipette tip.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a pipetting gun for biological assay, a serial communication port, including pipetting gun head, pipetting gun head includes the rifle head main part, rifle head main part upper end is connected with connecting portion, rifle head main part lower extreme is connected with the pipetting head, the inner wall of connecting portion is equipped with the screw thread, still is equipped with the link on the pipetting gun, connecting portion with link threaded connection, the inside of connecting portion is equipped with the fixed block, the fixed block top is equipped with filter screen and annular sealing pad in proper order, top-down is provided with spherical first inflation portion and columniform second inflation portion in the rifle head main part, the pipetting head is the tapered tube that the top-down pipe diameter diminishes gradually, pipetting head sealing connection has straight tube head.
2. The pipette gun for biological experiments according to claim 1, wherein the end surface of the liquid inlet of the pipette head and the end surface of the liquid inlet of the straight tube head are both inclined surfaces.
3. The pipette for biological experiments according to claim 1, wherein the outer wall of the pipette tip is provided with external threads, the inner wall of the straight tube tip is provided with internal threads, the straight tube tip is in threaded connection with the washing solution tip, and the upper end of the straight tube tip is further provided with a sealing ring.
4. The pipette gun for biological experiments according to claim 1, wherein the pipette head further comprises a protective sleeve, and an elastic layer is arranged at the upper end of the protective sleeve.
5. The pipette for biological experiments according to claim 4, wherein an annular block is arranged at the bottom of the second expansion part, an annular groove is formed between the annular block and the outer wall of the pipette head body, and the upper end of the protective sleeve is inserted into the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921480350.7U CN210787401U (en) | 2019-09-06 | 2019-09-06 | A liquid-transfering gun for biological assay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921480350.7U CN210787401U (en) | 2019-09-06 | 2019-09-06 | A liquid-transfering gun for biological assay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210787401U true CN210787401U (en) | 2020-06-19 |
Family
ID=71238069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921480350.7U Active CN210787401U (en) | 2019-09-06 | 2019-09-06 | A liquid-transfering gun for biological assay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210787401U (en) |
-
2019
- 2019-09-06 CN CN201921480350.7U patent/CN210787401U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240223 Address after: 215127, 1st Floor, Building 2, No. 69 Jiepu Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Suzhou Anwei Biotechnology Co.,Ltd. Country or region after: China Address before: 215000 No. 6 Anmin Road, Huangduo Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: Suzhou yimaiji Biomedical Technology Co.,Ltd. Country or region before: China |