CN219899466U - Pipetting needle cleaning device - Google Patents
Pipetting needle cleaning device Download PDFInfo
- Publication number
- CN219899466U CN219899466U CN202320868269.6U CN202320868269U CN219899466U CN 219899466 U CN219899466 U CN 219899466U CN 202320868269 U CN202320868269 U CN 202320868269U CN 219899466 U CN219899466 U CN 219899466U
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- Prior art keywords
- cleaning
- liquid
- pipeline
- cleaning device
- tank
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- 238000004140 cleaning Methods 0.000 title claims abstract description 135
- 239000007788 liquid Substances 0.000 claims abstract description 90
- 238000000861 blow drying Methods 0.000 claims abstract description 19
- 239000002699 waste material Substances 0.000 claims description 17
- 238000012546 transfer Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 abstract 3
- 239000002585 base Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
The utility model relates to the technical field of needle cleaning, in particular to a pipetting needle cleaning device which comprises an inner cleaning device, an inner blow-drying device, an outer cleaning device and an outer blow-drying device, wherein the inner cleaning device comprises an inner cleaning channel arranged in a pipettor, the inner cleaning channel is communicated with a needle, the inner blow-drying device comprises an inner air channel arranged in the pipettor, the inner air channel is communicated with the needle, the outer cleaning device comprises a matrix, a cleaning tank is arranged on the matrix, the outer cleaning device further comprises a driving mechanism for driving cleaning liquid in the cleaning tank to shake, and the outer blow-drying device is arranged on the matrix and used for blow-drying the needle for external cleaning.
Description
Technical Field
The utility model relates to the technical field of needle cleaning, in particular to a pipetting needle cleaning device.
Background
In fields such as chemistry and industry, frequent sampling and pipetting make cleaning needles a tedious and time consuming task. The automatic cleaning needle device places the needle in the cleaning area through a built-in cleaning procedure, and cleans the interior of the needle by using high-pressure water flow or air flow, etc., so as to ensure thorough cleaning and removal of dirt and residues. However, the cleaning effect is unsatisfactory, and the following problems mainly exist: (1) Current cleaning bath devices may not be able to completely clean the needle of dirt and residue, particularly those smaller, finer dirt, which may still remain on the needle. This may result in incomplete cleaning, affecting the effectiveness and safety of the needle; (2) the cleaning procedure is not intelligent enough: the existing cleaning pool device usually needs manual operation and lacks intelligent cleaning program control, which may cause unstable cleaning quality and even cause misoperation and other problems; (3) longer cleaning cycle: because the cleaning tank device needs to be washed and cleaned, the cleaning period is relatively long, and the efficiency is not high enough; (4) After the needle is cleaned for many times, the residual reactant and rubber pad in the needle are easy to block the emptying pipeline; (5) the problem of easy breakage of the partial cleaning pool is solved: the material of part washs pond is firm inadequately, and is damaged easily to influence cleaning effect and security.
Disclosure of Invention
In order to solve the problem that the existing cleaning device in the prior art is poor in cleaning effect, the utility model provides the pipetting needle head cleaning device with a good cleaning effect.
The technical scheme adopted for solving the technical problems is as follows:
a pipetting needle cleaning device comprising:
the inner cleaning device comprises an inner cleaning channel arranged in the liquid transfer device, and the inner cleaning channel is communicated with the needle head;
the inner blow-drying device comprises an inner air passage arranged in the liquid transfer device, and the inner air passage is communicated with the needle head;
the outer cleaning device comprises a substrate, a cleaning tank is arranged on the substrate, and the outer cleaning device further comprises a driving mechanism for driving cleaning liquid in the cleaning tank to shake;
the outer blow-drying device is arranged on the substrate and used for blow-drying the externally cleaned needle head.
Further, the driving mechanism comprises a plunger pump connected with the cleaning tank.
Further, the outer blow-drying device comprises a bracket arranged on the base body, wherein an air jet pipe is arranged on the bracket, and an outlet of the air jet pipe is positioned above the cleaning tank.
Further, the base body on install and be used for splendid attire syringe needle inside the liquid discharge groove of the discharged washing liquid, the liquid discharge groove be connected with the liquid discharge pump, the liquid discharge pump be connected with the waste liquid bucket.
Further, a first liquid level sensor for detecting the liquid level of the cleaning liquid is arranged in the cleaning tank, and a second liquid level sensor for detecting the liquid level of the waste liquid is arranged in the waste liquid barrel. The liquid level sensor is used for identifying the heights of the cleaning liquid and the waste liquid so as to determine whether to fill the cleaning liquid or replace the waste liquid barrel.
Further, the base body is provided with a cover body for covering the cleaning tank and the liquid draining tank.
Further, the cover body is connected with a driving cylinder for driving the cover body to slide on the base body so as to realize the opening and closing of the cleaning tank and the liquid draining tank. When not in use, the cleaning tank is covered to prevent pollution.
Further, interior cleaning channel connect first pipeline, be equipped with first solenoid valve on the first pipeline: the plunger pump is connected with a second pipeline, the second pipeline is provided with a second electromagnetic valve, the liquid discharge pump is connected with a third pipeline, and the third pipeline is provided with a third electromagnetic valve.
Furthermore, the first pipeline, the second pipeline, the third pipeline, the cleaning tank and the liquid discharge tank are made of tetrafluoro materials. The tetrafluoro material has the characteristic of strong acid and alkali resistance.
Further, a fourth electromagnetic valve is arranged on the base body and is connected with the air spraying pipe.
The beneficial effects are that:
(1) The cleaning device can realize that cleaning liquid is sprayed from the inside of the needle head, injected into the cleaning tank and pumped out of the cleaning tank, and ensures that the cleaning liquid fully flows through the inside and the outer surface of the liquid transfer device, thereby improving the cleaning quality;
(2) The cleaning device can realize automation, can rapidly and automatically complete the cleaning process, reduces the time and labor intensity of manual cleaning, and improves the cleaning efficiency;
(3) The cleaning device can use special cleaning liquid, so that cross contamination among different samples is avoided, and the accuracy and reliability of an experiment are ensured;
(4) The cleaning device can reduce the labor and time cost of manual cleaning, and simultaneously reduce the waste of cleaning liquid, thereby reducing the cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first perspective view of a cleaning device of the present utility model;
fig. 2 is a second perspective view of the cleaning device of the present utility model.
Wherein, 1, pipettor, 1-1, syringe needle, 2, base member, 3, washing tank, 4, plunger pump, 5, support, 6, jet tube, 7, liquid drain groove, 8, liquid drain pump, 9, lid, 10, actuating cylinder.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
Referring to fig. 1 and 2, a pipetting needle cleaning device comprises an inner cleaning device, an inner blow-drying device, an outer cleaning device and an outer blow-drying device, wherein the inner cleaning device comprises an inner cleaning channel arranged in a pipettor 1, and the inner cleaning channel is communicated with a needle 1-1; the inner blow-drying device comprises an inner air passage arranged in the liquid transfer device 1, and the inner air passage is communicated with the needle head 1-1; the outer cleaning device comprises a base body 2, a cleaning tank 3 is arranged on the base body 2, and the outer cleaning device further comprises a driving mechanism for driving cleaning liquid in the cleaning tank 3 to shake; the outer blow-drying device is arranged on the base body 2 and used for blow-drying the needle head 1-1 for external cleaning.
The driving mechanism comprises a plunger pump 4 connected with the cleaning tank 3, and the plunger pump is used as a driving device of the cleaning liquid.
The external blow-drying device comprises a bracket 5 arranged on the base body 2, an air jet pipe 6 is arranged on the bracket 5, and an outlet of the air jet pipe 6 is positioned above the cleaning tank 3.
The base body 2 is provided with a liquid discharge groove 7 for containing the cleaning liquid discharged from the needle head 1-1, the liquid discharge groove 7 is connected with a liquid discharge pump 8, the liquid discharge pump 8 is connected with a liquid discharge barrel, and the liquid discharge pump 8 can also adopt a plunger pump. The plunger pump 4 connected to the washing tank 3 may also be connected to a waste liquid tank for pumping out the waste liquid of the washing tank 3 to the waste liquid tank.
A first liquid level sensor for detecting the liquid level of the cleaning liquid is arranged in the cleaning tank 3, and a second liquid level sensor for detecting the liquid level of the waste liquid is arranged in the waste liquid barrel. The liquid level sensor is used for identifying the heights of the cleaning liquid and the waste liquid so as to determine whether to fill the cleaning liquid or replace the waste liquid barrel.
The base body 2 is provided with a cover 9 for covering the cleaning tank 3 and the drain tank 7.
The cover 9 is connected with a driving cylinder 10 which drives it to slide on the base 2 to realize the opening and closing of the washing tank 3 and the liquid discharge tank 7.
The inner cleaning channel is connected with a first pipeline, and a first electromagnetic valve is arranged on the first pipeline: the plunger pump 4 is connected with a second pipeline, the second pipeline is provided with a second electromagnetic valve, the liquid discharge pump 8 is connected with a third pipeline, and the third pipeline is provided with a third electromagnetic valve.
The first pipeline, the second pipeline, the third pipeline, the cleaning tank 3 and the liquid discharge tank 7 are made of tetrafluoro materials.
The base body 2 is provided with a fourth electromagnetic valve which is connected with the air ejector 6.
The cleaning device can adopt a system integration mode of a PLC, a sensor and a driver to realize the integral design of each component, the working of the plunger pump is controlled in real time through the PLC, various parameters of the machine can be timely adjusted by a human-machine interface display and operation device (HMI) to ensure the normal working of the machine, and a fault diagnosis device can be arranged to rapidly locate faults and provide a corresponding maintenance method.
The working process comprises the following steps:
(1) The needle 1-1 reaches the drain tank 7 of the emptying tank, the cylinder 10 is driven to act, the cover body 9 is opened, and the needle moves into the drain tank 7;
(2) The first electromagnetic valve is opened, cleaning liquid is injected into the liquid dispenser 1 (the cleaning liquid can be driven by a pump) to clean the inside of the needle head 1-1, and the cleaned waste liquid falls into the liquid discharge groove 7;
(3) The liquid discharge pump 8 pumps the discharged liquid to a liquid discharge barrel;
(4) Blowing the inner air passage of the needle head 1-1 with nitrogen for drying;
(5) The second electromagnetic valve acts, the plunger pump 4 injects a certain height of cleaning solution (such as 2/3 height) into the cleaning tank 3, the needle head 1-1 is inserted into the cleaning solution, the plunger pump 4 moves to pump a part of the cleaning solution, in the process, the reciprocating action of the plunger pump 4 causes the change of air pressure, the suction and the discharge are realized, in the process, the shaking of the cleaning solution in the cleaning tank 3 is caused, and the cleaning of the outer surface of the needle head 1-1 is realized;
(6) The action of the cleaning liquid at the position of the plunger pump 4 is repeated for 3-5 times, then the needle head 1-1 is removed, the fourth electromagnetic valve is opened, and the air injection pipe 6 injects nitrogen to blow and clean the needle head 1-1.
The inner air passage can jet air at the same time when the jet pipe 6 jets air, or the jet pipe 6 jets air at the inner air passage after the jet is finished, so that the inside and outside of the needle head are ensured to be clean.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (9)
1. A pipetting needle cleaning device is characterized by comprising
The inner cleaning device comprises an inner cleaning channel arranged in the liquid transfer device (1), and the inner cleaning channel is communicated with the needle head (1-1);
the inner blow-drying device comprises an inner air passage arranged in the liquid transfer device (1), and the inner air passage is communicated with the needle head (1-1);
the outer cleaning device comprises a substrate (2), a cleaning tank (3) is arranged on the substrate (2), and the outer cleaning device further comprises a driving mechanism for driving cleaning liquid in the cleaning tank (3) to shake;
the outer blow-drying device is arranged on the base body (2) and used for blow-drying the needle head (1-1) for external cleaning.
2. A pipetting needle cleaning device as recited in claim 1 wherein: the driving mechanism comprises a plunger pump (4) connected with the cleaning tank (3).
3. A pipetting needle cleaning device as recited in claim 1 wherein: the external blow-drying device comprises a bracket (5) arranged on the base body (2), wherein an air jet pipe (6) is arranged on the bracket (5), and an outlet of the air jet pipe (6) is positioned above the cleaning tank (3).
4. A pipetting needle cleaning device as recited in claim 2 wherein: the base body (2) is provided with a liquid discharge groove (7) for containing cleaning liquid discharged from the needle head (1-1), the liquid discharge groove (7) is connected with a liquid discharge pump (8), and the liquid discharge pump (8) is connected with a waste liquid barrel.
5. A pipette tip cleaning device as defined in claim 4, wherein: the cleaning tank (3) is internally provided with a first liquid level sensor for detecting the liquid level of the cleaning liquid, and the waste liquid barrel is internally provided with a second liquid level sensor for detecting the liquid level of the waste liquid.
6. A pipette tip cleaning device as defined in claim 4, wherein: the base body (2) is provided with a cover body (9) for covering the cleaning tank (3) and the liquid discharge groove (7), and the cover body (9) is connected with a driving cylinder (10) for driving the cover body to slide on the base body (2) so as to realize the opening and closing of the cleaning tank (3) and the liquid discharge groove (7).
7. A pipette tip cleaning device as defined in claim 4, wherein: the inner cleaning channel is connected with a first pipeline, and a first electromagnetic valve is arranged on the first pipeline: the plunger pump (4) is connected with a second pipeline, the second pipeline is provided with a second electromagnetic valve, the liquid discharge pump (8) is connected with a third pipeline, and the third pipeline is provided with a third electromagnetic valve.
8. A pipette tip cleaning device as defined in claim 7, wherein: the first pipeline, the second pipeline, the third pipeline, the cleaning tank (3) and the liquid draining tank (7) are made of tetrafluoro materials.
9. A pipetting needle cleaning device as recited in claim 3 wherein: the base body (2) is provided with a fourth electromagnetic valve which is connected with the air spraying pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320868269.6U CN219899466U (en) | 2023-04-18 | 2023-04-18 | Pipetting needle cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320868269.6U CN219899466U (en) | 2023-04-18 | 2023-04-18 | Pipetting needle cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219899466U true CN219899466U (en) | 2023-10-27 |
Family
ID=88428745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320868269.6U Active CN219899466U (en) | 2023-04-18 | 2023-04-18 | Pipetting needle cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219899466U (en) |
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2023
- 2023-04-18 CN CN202320868269.6U patent/CN219899466U/en active Active
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