CN214916214U - Multichannel pipettor - Google Patents

Abstract

The utility model discloses a multichannel pipettor, which comprises a first shell and a second shell, wherein the inner bottom wall of the first shell is uniformly welded with a box body, the bottom of the box body is communicated with a first pipeline, a second fixing plate and a first rubber pad can be driven to move by pulling a fixing rod, the air pressure in the second shell can be reduced by the movement of the first fixing plate and the first rubber pad, so that liquid to be transferred can be more conveniently extracted, meanwhile, a plurality of first pipelines and box bodies can move a plurality of liquid at one time, the process of extracting liquid and moving for a plurality of times is saved, time is saved, the working efficiency is improved, the first shell can be more conveniently and rapidly replaced by the first threads and the second threads after the liquid is replaced, the process of replacing a plurality of first pipelines is saved, and meanwhile, the contact of a worker with the first pipeline is avoided, leading to contamination of the first conduit and hence of the liquid.

Description

Multichannel pipettor

Technical Field

The utility model relates to a pipettor technical field specifically is a multichannel pipettor.

Background

One type of pipettor is commonly used for transferring a small amount of or trace liquid in a laboratory, pipette tips with different specifications are matched with pipette tips with different sizes, shapes produced by different manufacturers are slightly different, and the working principle and the operation method are basically consistent. The liquid-transfering gun belongs to a precise instrument, and is carefully used and stored, so that damage is prevented, and the measuring range is prevented from being influenced.

Present pipettor generally is the single channel pipettor, once can only remove the inside liquid of single pipeline, if need the more liquid of equal weight, often need carry out removal many times, will waste a large amount of time like this, the work efficiency is reduced, change appears if the liquid that needs remove simultaneously, still need change the pipeline of pipettor, traditional change mode, the staff can contact the lateral wall of pipeline, probably lead to the pipeline to receive the pollution, inside the pipeline that will receive the pollution inserts liquid, liquid also can receive the pollution, can't continue to use.

To this end, a multichannel pipette is proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multichannel pipettor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multichannel pipettor, includes first casing and second casing, the even welding of the inside diapire of first casing has the box, the bottom intercommunication of box has first pipeline, first pipeline runs through the bottom of first casing, the top intercommunication of box has the third pipeline, the one end intercommunication that the box was kept away from to the third pipeline has the second pipeline, the middle part lateral wall intercommunication of second pipeline has the fifth pipeline, first screw thread has been seted up to the inside wall of fifth pipeline, the inside dead lever that is equipped with of second casing, the bottom welding of dead lever has the second fixed plate, the top welding of dead lever has first fixed plate, the bottom center department intercommunication of second casing has the fourth pipeline, the second screw thread has been seted up to the lateral wall of fourth pipeline, first screw thread and second screw thread looks adaptation.

Preferably: and a valve is arranged on the outer side wall of the first pipeline.

Preferably: and a second rubber pad is bonded at the bottom of the second shell.

Preferably: and a first rubber pad is bonded on one side of the second fixing plate, which is far away from the fixing rod.

Preferably: and an annular limiting plate is welded at the top of the inner side wall of the second shell.

Preferably: and the front surface of the second shell is provided with an observation window.

Compared with the prior art, the beneficial effects of the utility model are that:

the second fixing plate and the first rubber pad can be driven to move by pulling the fixing rod, and air pressure in the second shell can be reduced by the movement of the second fixing plate and the first rubber pad, so that liquid to be transferred can be extracted more conveniently;

two, through first screw thread and second screw thread, can take place to change the back at liquid, convenient and fast more changes first casing, saves the process of changing a plurality of first pipelines, has also avoided the staff to touch first pipeline simultaneously, leads to first pipeline to receive the pollution to the condition of polluting liquid appears.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic view of a sectional structure of the box body of the present invention;

fig. 4 is an enlarged schematic view of the structure of the region a in fig. 2 according to the present invention.

In the figure: 1. a first housing; 2. a valve; 3. a first conduit; 4. a second housing; 5. an observation window; 6. a first fixing plate; 7. fixing the rod; 8. a box body; 9. a second fixing plate; 10. a first rubber pad; 11. a second conduit; 12. a third pipeline; 13. a fourth conduit; 14. a fifth pipeline; 15. a first thread; 16. a second thread; 17. a second rubber pad; 18. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a multichannel pipettor, including first casing 1 and second casing 4, the even welding of inside diapire of first casing 1 has box 8, the bottom intercommunication of box 8 has first pipeline 3, first pipeline 3 runs through the bottom of first casing 1, the top intercommunication of box 8 has third pipeline 12, the one end intercommunication that box 8 was kept away from to third pipeline 12 has second pipeline 11, the middle part lateral wall intercommunication of second pipeline 11 has fifth pipeline 14, first screw thread 15 has been seted up to the inside wall of fifth pipeline 14, the inside dead lever 7 that is equipped with of second casing 4, the bottom welding of dead lever 7 has second fixed plate 9, the top welding of dead lever 7 has first fixed plate 6, the bottom center department intercommunication of second casing 4 has fourth pipeline 13, second screw thread 16 has been seted up to the lateral wall of fourth pipeline 13, first screw thread 15 and the adaptation of second screw thread 16.

In this embodiment, specifically: the outer side wall of the first pipeline 3 is provided with a valve 2; through above setting, can control and have how much first pipeline 3 can extract liquid at every turn to remove, if the first pipeline 3 that needs to extract liquid is less, can close first pipeline 3 through valve 2, thereby make it unable extraction liquid, if the first pipeline 3 that needs to remove extraction liquid is too much, just open valve 2, thereby make first pipeline 3 extract.

In this embodiment, specifically: a second rubber pad 17 is bonded at the bottom of the second shell 4; through above setting, can play sealed effect, can effectually prevent that the pipeline from when extracting liquid because the reason of gas leakage to lead to the condition that can't extract to appear, can play the effect of buffering simultaneously, when preventing that second casing 4 and first casing 1 from docking, receive great power, lead to their condition of damaging to appear.

In this embodiment, specifically: a first rubber pad 10 is bonded on one side of the second fixing plate 9 far away from the fixing rod 7; through the setting, can play sealed effect when dead lever 7 removes, when the removal extraction liquid through pulling dead lever 7, if do not have the sealed effect of first rubber pad 10, the condition of gas leakage probably appears, if the condition of gas leakage takes place, the change will appear in the inside atmospheric pressure of pipeline, leads to liquid can't be extracted to make the unable normal use of equipment.

In this embodiment, specifically: an annular limiting plate 18 is welded at the top of the inner side wall of the second shell 4; through above setting, can prevent that dead lever 7 from breaking away from the inside of second casing 4, when carrying out the extraction of liquid again, need be through pulling dead lever 7, make the inside atmospheric pressure of pipeline reduce, thereby extract external liquid, if do not have limiting plate 18, probably because the strength is too big when pulling dead lever 7, lead to dead lever 7 to be pulled out second casing 4, break away from the inside back of second casing 4 when dead lever 7, the inside atmospheric pressure of air admission pipeline resumes, lead to inside the liquid that has been extracted can flow out the pipeline, cause the waste.

In this embodiment, specifically: the front surface of the second housing 4 is provided with an observation window 5; through the setting, observation window 5 can be more convenient the position of observing second fixed plate 9, through the scale mark of observing second fixed plate 9 and 4 lateral walls of second casing, the volume of control extraction liquid that can be more convenient for the volume of extraction liquid is more accurate, is difficult to the deviation, has avoided because the deviation appears in the liquid volume, and the condition that leads to follow-up work normally to go on appears.

Working principle or structural principle: when liquid needs to be extracted and moved, the first pipeline 3 is inserted into the original liquid container, then the fixing rod 7 is pulled, the second fixing plate 9 is driven to move through the movement of the fixing rod 7, the first rubber pad 10 can be driven to move through the movement of the second fixing plate 9, the second shell 4, the fourth pipeline 13, the fifth pipeline 14, the second pipeline 11, the third pipeline 12, the box body 8 and the air pressure inside the first pipeline 3 can be reduced through the movement of the first rubber pad 10, the outside air can flow into the device from the bottom of the first pipeline 3 due to the reduction of the air pressure, but the liquid can flow to a place with low air pressure because the first pipeline 3 is inserted into the liquid, the liquid flows into the box body 8 through the first pipeline 3 and is stored inside the box body 8, the volume of all the box bodies 8 is added together and is larger than the volume of the second shell 4, when the fixing rod 7 can not be pulled, liquid can only not flow into the second shell 4 in the box body 8, after the liquid is extracted, the equipment is moved to a designated position, the fixing rod 7 is pushed to extrude the air in the second shell 4, so that the air enters the box body 8, the liquid is discharged into a new container through the first pipeline 3 by the extrusion of the air, how many first pipelines 3 can be controlled by the valve 2 to extract, if the first pipelines 3 needing to be used are less, the valve 2 is closed, otherwise, the same is true, meanwhile, the mutual matching of the first threads 15 and the second threads 16 is adopted, so that the process of replacing the second shell 4 is more convenient and faster, the condition that the first pipelines 3 are polluted and can not be used by workers is avoided, and meanwhile, the liquid is prevented from remaining in other pipelines or the box body 8, the circumstances that causes liquid mixed pollution appears, and this device can convenient and fast more extract and remove liquid, has avoided single pipeline to extract, leads to the slow circumstances of work efficiency to appear, and the while can be more convenient change first casing 1 through first screw thread 15 and second screw thread 16, has avoided the staff to contact first pipeline 3, leads to first pipeline 3 to receive the circumstances of pollution to appear.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A multichannel pipettor comprising a first housing (1) and a second housing (4), characterized in that: the welding of the even inside diapire of first casing (1) has box (8), the bottom intercommunication of box (8) has first pipeline (3), first pipeline (3) run through the bottom of first casing (1), the top intercommunication of box (8) has third pipeline (12), the one end that box (8) were kept away from in third pipeline (12) communicates second pipeline (11), the middle part lateral wall intercommunication of second pipeline (11) has fifth pipeline (14), first screw thread (15) have been seted up to the inside wall of fifth pipeline (14), second casing (4) inside is equipped with dead lever (7), the bottom welding of dead lever (7) has second fixed plate (9), the top welding of dead lever (7) has first fixed plate (6), the bottom center department intercommunication of second casing (4) has fourth pipeline (13), the outer side wall of the fourth pipeline (13) is provided with a second thread (16), and the first thread (15) is matched with the second thread (16).

2. A multichannel pipette as defined in claim 1, wherein: and a valve (2) is arranged on the outer side wall of the first pipeline (3).

3. A multichannel pipette as defined in claim 1, wherein: and a second rubber pad (17) is bonded at the bottom of the second shell (4).

4. A multichannel pipette as defined in claim 1, wherein: and a first rubber pad (10) is bonded on one side of the second fixing plate (9) far away from the fixing rod (7).

5. A multichannel pipette as defined in claim 1, wherein: and an annular limiting plate (18) is welded at the top of the inner side wall of the second shell (4).

6. A multichannel pipette as defined in claim 1, wherein: an observation window (5) is arranged on the front surface of the second shell (4).

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