CN220460718U - Bending type pipette nozzle and supporting plate - Google Patents
Bending type pipette nozzle and supporting plate Download PDFInfo
- Publication number
- CN220460718U CN220460718U CN202322079306.8U CN202322079306U CN220460718U CN 220460718 U CN220460718 U CN 220460718U CN 202322079306 U CN202322079306 U CN 202322079306U CN 220460718 U CN220460718 U CN 220460718U
- Authority
- CN
- China
- Prior art keywords
- suction nozzle
- nozzle
- curved
- supporting plate
- positioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005452 bending Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 abstract description 17
- 238000005070 sampling Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 Polypropylene Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Landscapes
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model relates to a curved pipette nozzle and a nozzle supporting plate, comprising a curved nozzle and a nozzle supporting plate, wherein the curved nozzle comprises a nozzle head end, a nozzle cavity and a nozzle tail end, and the lower edge of the nozzle head end is provided with a positioning point; the tail end of the suction nozzle is curved, and the tail end of the suction nozzle is curved towards the direction of the positioning point; the suction nozzle supporting plate is provided with a plurality of suction nozzle grooves for accommodating suction nozzles, and the groove walls of the suction nozzle grooves are respectively provided with a positioning groove for positioning the bending type suction nozzle, and the positioning grooves are matched with the positioning points of the bending type suction nozzle in shape. The utility model has simple structure, is used for transferring trace liquid, and improves the operation convenience on the premise of ensuring the accuracy of the sampling quantity; the supporting nozzle supporting plate is used for accommodating and fixing the bending type suction nozzle.
Description
Technical Field
The utility model relates to the technical field of biological experiment equipment, in particular to a bending type pipette nozzle and a nozzle supporting plate.
Background
Biological laboratories often need to use a pipette to remove small or minute amounts of liquid from a sample, and accuracy is compromised by changing the air pressure surface due to tilting of the pipette, which is kept as vertical as possible, is not necessarily tilted, and is not tilted by more than 20 °, requiring that the laboratory operator be skilled in the pipetting technique for adding liquid along the inner wall, especially minute amounts (e.g., 1 μl). The pipette nozzle supplied in the current market is vertical, so that the operation is inconvenient when a trace amount of liquid is removed, the observation is not easy, and the experiment error is easily caused by improper tilting operation. Therefore, the structure of the pipette nozzle is simply modified, the operation convenience is improved on the premise of ensuring the pipetting accuracy, and meanwhile, an operator can observe the sample adding process conveniently.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide the bent suction nozzle with a simple structure, which is used for transferring trace liquid, and improves the operation convenience on the premise of ensuring the accuracy of the sampling quantity; and the supporting nozzle supporting plate is arranged in a conventional nozzle box and is used for accommodating and fixing the bent type nozzle.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a curved pipette nozzle and a nozzle support plate, a curved nozzle and a nozzle support plate;
the curved suction nozzle comprises a suction nozzle head end, a suction nozzle cavity and a suction nozzle tail end, and the lower edge of the suction nozzle head end is provided with a positioning point;
the tail end of the suction nozzle is curved, and the tail end of the suction nozzle is curved towards the direction of the positioning point;
the suction nozzle supporting plate is provided with a plurality of suction nozzle grooves for accommodating suction nozzles, and the groove walls of the suction nozzle grooves are respectively provided with a positioning groove for positioning the bending type suction nozzle, and the positioning grooves are matched with the positioning points of the bending type suction nozzle in shape.
Further, the locating point is crescent, and the locating point is located the junction in suction nozzle head end and suction nozzle chamber, and the tail end orientation of crooked suction nozzle is judged to the operator of being convenient for.
Furthermore, the positioning point is positioned below the head end of the suction nozzle and inside the edge of the head end of the suction nozzle, so that the fixation of the suction nozzle on the suction nozzle supporting plate is not affected.
Furthermore, the wall of the suction nozzle cavity is provided with the maximum capacity scale mark of the suction nozzle with the specification.
Furthermore, a certain distance is reserved between the maximum capacity scale mark and the lower edge of the head end of the suction nozzle, so that liquid is prevented from splashing on the pipette when the operation is too fast.
Further, the bending degree of the tail end of the suction nozzle does not affect the fixation of the suction nozzle on the suction nozzle supporting plate, namely, the tail end of the suction nozzle does not exceed the maximum diameter range of the suction nozzle cavity, and can be vertically placed into the suction nozzle groove of the suction nozzle supporting plate.
By adopting the technical scheme, the utility model has the beneficial effects that:
1. convenience: when the pipette is used for sucking liquid, the pipette needs to be kept in a vertical state as much as possible, the inclination angle cannot exceed 20 degrees, the requirement on the pipetting skill of the operator is high, and the requirement on the pipetting skill of the operator is reduced to a certain extent because the curved suction nozzle is not required to be used for inclining;
2. easy observation: the bending type suction nozzle is matched with the suction nozzle supporting plate for use, and the bending direction of the tail end of the suction nozzle faces to an operator, so that the operator can observe the sample adding process conveniently;
3. sealing: when the suction nozzle is fixed to the liquid-transferring gun, small-amplitude rotation is required to ensure the connection tightness of the suction nozzle and the liquid-transferring gun, the tightness degree of the joint of the head end of the suction nozzle and the liquid-transferring gun is related to the accuracy of liquid transferring, and the positioning groove of the suction nozzle supporting plate is beneficial to the suction nozzle to be more tightly fixed to the liquid-transferring gun;
4. commonality: the head end of the curved suction nozzle is the same as the head end of a conventional suction nozzle, is suitable for a standard pipette, and the size specification of the suction nozzle supporting plate is the same as that of the conventional suction nozzle supporting plate, and can still be used for accommodating the conventional suction nozzle;
5. the manufacturing cost is low: the bent suction nozzle and the suction nozzle supporting plate are simply modified on the basis of the conventional suction nozzle and the conventional suction nozzle supporting plate, so that the requirement on the production process is low, and high funds are not required.
Drawings
The utility model is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic view of a curved nozzle according to the present utility model;
FIG. 2 is a schematic view of the structure of a nozzle support plate according to the present utility model;
fig. 3 is a schematic view showing the curved nozzle of the present utility model loaded on a nozzle carrier plate.
Description of the embodiments
As shown in fig. 1-3, the utility model discloses a curved pipette nozzle and a supporting plate, including a curved nozzle and a nozzle supporting plate, the curved nozzle is made of transparent nontoxic Polypropylene (PP) materials, the inner wall is smooth, the liquid suction is accurate and the liquid discharge has no residue; the suction nozzle supporting plate is also made of PP, has higher impact resistance, strong mechanical property and resistance to corrosion of various organic solvents and acid and alkali, and can be used for high-temperature high-pressure sterilization.
The curved suction nozzle comprises a suction nozzle head end 1, a suction nozzle cavity 4 and a suction nozzle tail end 5, wherein the lower edge of the suction nozzle head end 1 is provided with a positioning point 2; the tail end 5 of the suction nozzle is curved, the tail end 5 of the suction nozzle is curved towards the direction of the positioning point 2 and is 10 degrees away from the vertical direction, and the tail end opening of the suction nozzle cavity 4 is flush; the wall of the suction nozzle cavity 4 is provided with a maximum capacity scale mark 3 of the suction nozzle with the specification. The maximum capacity graduation mark 3 is spaced from the lower edge of the suction nozzle head end 1 to prevent liquid from splashing on the pipette when the operation is too fast.
The suction nozzle supporting plate is provided with a plurality of suction nozzle grooves 6 for accommodating suction nozzles, the groove walls of the suction nozzle grooves 6 are respectively provided with a positioning groove 7 for positioning the bending type suction nozzle, and the positioning grooves 7 are matched with the positioning points 2 of the bending type suction nozzle in shape. The positioning groove 7 is located beside the suction nozzle groove 6, and when the suction nozzle supporting plate is placed in the suction nozzle box, the positioning groove 6 is close to the operator side, namely, the direction of uncovering the suction nozzle box.
Wherein, the size of the suction nozzle head end 1, the suction nozzle cavity 4 and the suction nozzle groove 6 on the suction nozzle supporting plate of the curved suction nozzle is the same as that of a conventional suction nozzle and a suction nozzle supporting plate.
Taking a curved suction nozzle with a specification of 10 μl as an example, the embodiment is as follows:
the whole length 35 mm of the suction nozzle of the bending type pipetting gun;
the suction nozzle head end 1 is a hollow cylinder, the height is 4 mm, the outer diameter is 6 mm, and the inner diameter is 4.5 mm;
the length of the suction nozzle cavity 4 is 24 mm, so that the liquid can be prevented from splashing to pollute the pipette when the operation is too fast;
a crescent positioning point 2 (the crescent outer diameter is 2 mm) is arranged at the joint of the upper part of the suction nozzle cavity 4 and the suction nozzle head end 1, the height of the positioning point 2 is 1.5 mm, and the positioning point 2 is matched with a positioning groove 7 on a suction nozzle supporting plate;
the length of the suction nozzle tail end 5 is 7 mm, the suction nozzle tail end 5 bends towards the direction of the positioning point 2 and forms 10 degrees with the vertical direction, so that the tail end of the suction nozzle tail end 5 does not exceed the maximum diameter range 5 mm of the suction nozzle cavity 4, and can be vertically placed into the suction nozzle groove 6 of the suction nozzle supporting plate, and the fixation of the bent suction nozzle on the suction nozzle supporting plate is not influenced;
the opening of the tail end 5 of the suction nozzle is flush, and after the liquid is sucked, the liquid level of the tail end of the suction nozzle is the same as that of a conventional suction nozzle, so that the influence on the air pressure surface in the sample sucking process can be avoided, and the precision of pipetting is ensured;
the suction nozzle supporting plate has the length of 118 mm, the width of 83 mm and the thickness of 15 mm, and the suction nozzle grooves 6 are uniformly arranged and 96 holes are formed, so that the suction nozzle supporting plate can be placed in a conventional suction nozzle box;
the diameter of the suction nozzle groove 6 of the suction nozzle supporting plate is consistent with that of a conventional suction nozzle supporting plate (the specification is 10 mu l) and is 5 mm;
the positioning groove 7 of the suction nozzle supporting plate is crescent-shaped, the depth is 1.5 mm, and is matched with the positioning groove 7, namely, when the suction nozzle supporting plate is used for accommodating the bending type suction nozzle, as shown in the right diagram of fig. 3, the bending type suction nozzle is positioned in the suction nozzle groove 6 of the suction nozzle supporting plate, the positioning groove 7 of the suction nozzle supporting plate is embedded into the positioning groove 2 of the bending type suction nozzle, and at the moment, the tail end of the bending type suction nozzle faces the positioning groove 7, namely, the bending directions of all the bending type suction nozzles on the suction nozzle supporting plate are consistent.
When the bending type suction nozzle is fixed on the liquid-transferring gun, the liquid-transferring gun is pressed downwards forcefully and rotated in a small amplitude, and the suction nozzle is easy to fix on the liquid-transferring gun due to the resistance effect of the positioning point 2 clamped in the positioning groove 7;
when the pipette gun is in a vertical state, the tail end of the bent suction nozzle fixed on the pipette gun is 10 degrees from the vertical direction, and when an experiment operator performs an operation of adding trace liquid along the inner wall, the pipette gun is not required to be excessively inclined, the tail end of the bent suction nozzle can lean against the inner wall of the target container, the pipette gun is pressed, the liquid in the suction nozzle is completely transferred into the target container under the action of gravity, and compared with the inclined operation of using a conventional suction nozzle for sample adding, the residual liquid quantity on the bent suction nozzle is less, and the brought experiment error is smaller;
when the bending type suction nozzle is used, the tail end of the suction nozzle faces to an operator, so that the operator can directly observe the sample loading condition without searching a proper observation angle for observation, and the operation is more convenient.
The dimensions of the curved nozzle and nozzle tray are used for further understanding of the utility model and are not limiting of the utility model.
While particular embodiments of the present utility model have been described above, it will be understood by those skilled in the art that this is by way of example only, and that various changes and modifications may be made to this embodiment without departing from the spirit and scope of the utility model, but these changes and modifications are within the scope of the utility model.
Claims (6)
1. A crooked type liquid-transfering gun suction nozzle and bearing board, its characterized in that: comprises a bending type suction nozzle and a suction nozzle supporting plate;
the curved suction nozzle comprises a suction nozzle head end, a suction nozzle cavity and a suction nozzle tail end, and the lower edge of the suction nozzle head end is provided with a positioning point;
the tail end of the suction nozzle is curved, and the tail end of the suction nozzle is curved towards the direction of the positioning point;
the suction nozzle supporting plate is provided with a plurality of suction nozzle grooves for accommodating suction nozzles, and the groove walls of the suction nozzle grooves are respectively provided with a positioning groove for positioning the bending type suction nozzle, and the positioning grooves are matched with the positioning points of the bending type suction nozzle in shape.
2. The curved pipette nozzle and carrier of claim 1 wherein: the locating point is crescent, and the locating point is located at the joint of the suction nozzle head end and the suction nozzle cavity.
3. The curved pipette nozzle and carrier as defined in claim 2 wherein: the locating point is positioned below the head end of the suction nozzle and is positioned on the inner side of the edge of the head end of the suction nozzle.
4. The curved pipette nozzle and carrier of claim 1 wherein: the wall of the suction nozzle cavity is provided with a maximum capacity scale mark of the suction nozzle with the specification.
5. The curved pipette nozzle and carrier as defined in claim 4 wherein: the maximum capacity scale mark is spaced from the lower edge of the head end of the suction nozzle.
6. The curved pipette nozzle and carrier of claim 1 wherein: the tail end of the suction nozzle does not exceed the maximum diameter range of the suction nozzle cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322079306.8U CN220460718U (en) | 2023-08-03 | 2023-08-03 | Bending type pipette nozzle and supporting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322079306.8U CN220460718U (en) | 2023-08-03 | 2023-08-03 | Bending type pipette nozzle and supporting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220460718U true CN220460718U (en) | 2024-02-09 |
Family
ID=89779857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322079306.8U Active CN220460718U (en) | 2023-08-03 | 2023-08-03 | Bending type pipette nozzle and supporting plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220460718U (en) |
-
2023
- 2023-08-03 CN CN202322079306.8U patent/CN220460718U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1767950B1 (en) | Method and apparatus for accurate positioning of a pipetting device | |
| US20160144367A1 (en) | Holder for transferring test tube | |
| US10040068B2 (en) | Reagent vessel holder for an analytical instrument, reagent supply system for an analytical instrument and an analytical instrument | |
| KR20020080445A (en) | Probe tip alignment for precision liquid handler | |
| CN220460718U (en) | Bending type pipette nozzle and supporting plate | |
| JPH07284674A (en) | Pipette tip | |
| WO2012111287A1 (en) | Specimen container and nozzle tip volume regulator | |
| CN204816580U (en) | Injection formula pipette | |
| CN212903100U (en) | Pipettor calibrating device for automatic micro-sampling equipment | |
| KR101785441B1 (en) | Improved pipette tip | |
| US20100096405A1 (en) | Pipetting device | |
| CN112833799A (en) | Soldering flux glue climbing height detection device and detection method | |
| JP2003014596A (en) | Creation apparatus for protein crystallization hanging drop | |
| JPWO2018181646A1 (en) | Adapter for reagent container | |
| CN221174267U (en) | Evaporation box for detecting water content of marine sediment | |
| US20220025314A1 (en) | Sieve system and methods for cell media exchange | |
| CN213761872U (en) | Trace liquid-transfering gun with leak protection function | |
| US20240050939A1 (en) | Device for efficient medium exchange in microtiter plates | |
| CN217212772U (en) | Liquid feeding device for food inspection | |
| CN219400220U (en) | Visual micropipette preservation tube | |
| JP3721889B2 (en) | Dispensing device | |
| CN219039097U (en) | Sample analyzer | |
| CN218012865U (en) | Test tube support | |
| CN216510159U (en) | Bottle plug assembly and volumetric flask using same | |
| CN219996621U (en) | Liquid suction collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |