CN208320838U - A kind of leakproof pipettor - Google Patents
A kind of leakproof pipettor Download PDFInfo
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- CN208320838U CN208320838U CN201820375311.XU CN201820375311U CN208320838U CN 208320838 U CN208320838 U CN 208320838U CN 201820375311 U CN201820375311 U CN 201820375311U CN 208320838 U CN208320838 U CN 208320838U
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- piston
- shell
- push rod
- tube body
- leakproof
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Abstract
The utility model discloses a kind of leakproof pipettor, including shell, the pipette that is sticked in the lid of shell and is installed in shell and is fixed by lid, the pipette includes tube body, is connected to tube cavity and the fluid chamber being linked together with tube body lower part and the piston for being installed on tubular body, the piston is connected with push rod, tube head of the push rod through tube body top, the fluid chamber bottom is fixedly connected with the dropper of taper, which stretches out shell；The utility model is designed reasonably, structure is simple, easy to use, can prevent liquid leakage, the transfer for liquid in laboratory；By reasonably designing convex block and epitaxial bath, it can be realized push rod and move up, drive liquid in dropper to move up a distance, dropper front end is made to become blank pipe；And then in pipetting processes, although liquid can flow downward, but have the sufficient time for shifting, and then reduce pollution, improve work efficiency.
Description
Technical field
The utility model relates to a kind of devices that can be repeated for extracting fluid in fluid container.
Background technique
Pipettor (pipette) may be considered one of most common hand-operated tools in laboratory, in general, pipettor by with
One or more parts subsample is extracted in the fluid container from large volume, can get the repeatable extraction and distribution of various configurations
Fluid；
A kind of food inspection is disclosed by the utility model of retrieval discovery Patent No. CN201611089903.7
Micropipettor, including pipettor ontology；Pipettor ontology is mainly made of socket, pushing hands, connecting rod and suction nozzle, socket
Bottom is fixedly connected with connecting tube, and pipettor bodies top is provided with pushing hands, connecting rod, connecting rod are provided in pipettor ontology
It is fixedly connected with pushing hands；Connecting rod bottom is fixedly connected with piston；Spring is provided in socket socket, pipettor body bottom portion can
Dismantling connection has a suction nozzle, and suction nozzle inner top is fixedly connected with partition, uniformly distributed on partition to have multiple micropores；Suction nozzle is internally located at
Obstruction valve is fixedly connected in partition upper inner wall, obstruction valve is that semiglobe and obstruction valve and suction nozzle are integrally formed；Block valve
Floating ball is provided between partition.Although the micropipettor can pipette solution, it is total that liquid is held during liquid relief
It can be flowed out in transfer process, be easy to splash in other holes so as to cause pollution when 96 orifice plate is added.
Utility model content
Therefore, to overcome above-mentioned deficiency, the utility model provides a kind of design rationally herein, and structure is simple, easy to use,
Liquid leakage can be prevented, the leakproof pipettor shifted for liquid in laboratory；By reasonably designing convex block and epitaxial bath,
It can be realized push rod to move up, drive liquid in dropper to move up a distance, dropper front end is made to become blank pipe；And then
In pipetting processes, although liquid can flow downward, but have the sufficient time for shifting, and then reduce pollution, improve
Working efficiency.
The utility model is realized in this way construct a kind of leakproof pipettor, including shell, the lid that is sticked in shell,
And it is installed on the pipette being fixed in shell and by lid, the pipette includes tube body, is connected to tube cavity
And the fluid chamber being linked together with tube body lower part and the piston for being installed on tubular body, the piston are connected with push rod, this is pushed away
For bar through the tube head on tube body top, the fluid chamber bottom is fixedly connected with the dropper of taper, which stretches out shell.
Preferably, spring is installed between bottom in the piston base and tube body, and offers peace in the piston outer ring
Fill the arc-shaped ring groove of sealing ring.
Preferably, the tube head offer with the matched push-rod hole of push rod, the push-rod hole inner wall is provided with axial direction
Guide runner, and be provided with the epitaxial bath for penetrating through and tilting upward therewith by guide runner.
Preferably, push rod outer wall middle and upper part offers convex block, which matches with guide runner, and restores after spring is pressed
When camber of spring, putter grip is gently revolved, convex block is able to enter epitaxial bath, to move up with piston.
Preferably, the upper part of the housing is provided with the handle being linked together, and is provided in middle and upper part convenient for finger grip
Finger grips.
Preferably, the dropper is made of soft rubber.
The utility model has the advantages that
Advantage one: the utility model is designed reasonably, structure is simple, easy to use, for the transfer of liquid in laboratory,
Liquid leakage can be prevented when liquid relief；By reasonably designing convex block and epitaxial bath, it can be realized push rod and move up, drive drop
Liquid moves up a distance in pipe, and dropper front end is made to become blank pipe；And then in pipetting processes, although liquid can be to
Lower flowing, but have the sufficient time for shifting, and then reduce pollution, it improves work efficiency.
Advantage two: the utility model reasonably devises piston, is provided with arc groove in outside piston, and in the arc groove
On sealing ring is installed, the sealing performance of piston and inboard wall of tube body can be greatly improved by the sealing ring, guarantees liquid
Absorption and discharge can be more stable.
Advantage three: the utility model is deformed using the recovery of spring by rationally designing spring, can be realized the upper of piston
It moves, after the air in manual depression push rod discharge fluid chamber, is deformed by the recovery of spring and push up piston, realization pair
The absorption of liquid.
Advantage four: by improving, reasonable design shell and lid, the connection type engaged by shell and lid,
Stable pipette can be fixed in shell；Handle is designed on shell simultaneously, convenient for the movement of the utility model, in shell
Finger grips are also designed on body, have been convenient for the gripping of operator, also facilitate the pushing to putter grip, make its operation more
Conveniently smoothly.
Advantage five: the utility model is structurally reasonable, ingenious in design, easy to manufacture, at low cost, and using effect is good, is suitble to push away
It is wide to use.
Detailed description of the invention
Fig. 1 is the utility model appearance schematic diagram；
Fig. 2 is pipette schematic diagram inside the utility model；
Fig. 3 is the utility model push rod and piston connection schematic diagram；
Fig. 4 is the utility model tube head schematic cross-section；
In figure: 1, shell；2, lid；3, tube body；5, push rod；5.1, convex block；6, putter grip；7, spring；8, sealing ring；
9, fluid chamber；10, dropper；11, tube head；11.1, push-rod hole；11.2, guide runner；11.3, epitaxial bath.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing 1- Fig. 4, to the skill in the utility model embodiment
Art scheme is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, and
The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of labour.
As Figure 1-Figure 4, the utility model provides a kind of leakproof pipettor herein, including shell 1, is sticked in shell 1
Lid 2 and the pipette that is installed in shell 1 and is fixed by lid 2, the pipette include tube body 3, with pipe
The connection of 3 inner cavity of body and the fluid chamber 9 being linked together with 3 lower part of tube body and the piston 4 being installed on inside tube body 3, the piston
4 are connected with push rod 5, and for the push rod 5 through the tube head 11 on 3 top of tube body, 9 bottom of fluid chamber is fixedly connected with the drop of taper
Pipe 10, the dropper 10 stretch out shell 1.
In the present embodiment, spring 7 is installed between bottom in 4 bottom of piston and tube body 3, and outside the piston 4
Circle offers the arc-shaped ring groove 4.1 of installation sealing ring 8.
In the present embodiment, the tube head 11 offer with the matched push-rod hole 11.1 of push rod 5, in the push-rod hole 11.1
Wall is provided with the guide runner 11.2 of axial direction, and is provided with by the guide runner 11.2 and penetrates through and tilt upward outer therewith
Prolong slot 11.3.
In the present embodiment, 5 outer wall middle and upper part of push rod offers convex block 5.1, which matches with guide runner 11.2,
And when restoring camber of spring after spring 7 is pressed, light to revolve putter grip 6, convex block 5.1 is able to enter epitaxial bath 11.3, thus band
Piston 4 moves up.
In the present embodiment, 1 top of shell is provided with the handle 1.1 being linked together, and is provided with just in middle and upper part
In the finger grips 1.2 of finger grip.
In the present embodiment, the dropper 10 is made of soft rubber.
The utility model is for pipetting organic reagent, and traditional volley of rifle fire is always shifting in the pipetting of organic reagent
Overflow goes out in the process, is easy to splash in other holes so as to cause pollution when 96 orifice plate is added；Therefore, it is based on the deficiency, this
Utility model is a kind of easy to use by Curve guide impeller, reliable and stable, and after having drawn liquid, it is small that liquid can above be mentioned to one
Section distance, (after dropper pipette samples, by rotating tube head, convex block enters the epitaxial bath that tilts upward, shut out at this time will on
It moves, to move up with piston, dropper front end is made to become blank pipe).In this way in moving process, although liquid can be to
Lower flowing, but have the sufficient time for shifting, so that reducing pollution improves working efficiency.
When in use, if mobile utility model works personnel can be mobile by handle, when drawing liquid, work
Personnel's finger can be held in finger grips 1.2, operate in this way it is more convenient, still further below press putter grip 6, pushed away by push rod 5
The dynamic piston 4 for being equipped with sealing ring 8, the piston 8 are discharged the air in fluid chamber 9, dropper are inserted into liquid after being pressed downward, then
Putter grip 6 is decontroled, is deformed by the recovery of spring 7, so that piston 4 moves up, thus realize the absorption of liquid, absorption to be done
Afterwards, dropper 10 leaves liquid and is easy, at this time by gently rotating push rod handle 6, so that the convex block 5.1 on push rod 5 enters extension
In slot 11.3, in the process since epitaxial bath 11.3 is to tilt upward, so push rod 5 can move up, to drive dropper
Liquid moves up a distance in 10, and dropper front end is made to become blank pipe.In this way in pipetting processes, although liquid can be to
Lower flowing, but have the sufficient time for shifting, and then reduce pollution, it improves work efficiency；When liquid is discharged, need anti-
Putter grip 6 is gently revolved in direction, so that convex block 5.1 enters in guide runner 11.2, presses putter grip 6, so that pushed away under piston, thus
Realize drain.
As shown in figure 3,5 bottom of push rod it is vertical be fixedly connected with piston 4, which is provided with close for installing
The arc groove 4.1 of seal can greatly improve the sealing performance of piston and inboard wall of tube body by installing sealing ring 8, guarantee liquid
The absorption and discharge of body can be more stable.
As shown in figure 4, the figure is the schematic cross-section of tube head, tube head 11 and tube body top are connected as an entirety, at this
Tube head 11 offer with the matched push-rod hole 11.1 of push rod 5,11.1 inner wall of push-rod hole is provided with the guide runner of axial direction
11.2, and the epitaxial bath 11.3 for penetrating through and tilting upward therewith is provided with by the guide runner 11.2；Due to the epitaxial bath
11.3 be to be located at 11.1 inner wall of push-rod hole to tilt upwards, so in rotating push rod 5, convex block 5.1 enters epitaxial bath can be to moving up
It is dynamic, so that push rod, which will drive piston, moves up a distance, and then dropper front end is made to become blank pipe.In this way in pipetting processes
In, although liquid can flow downward, but have the sufficient time for shifting, and then reduce pollution, improve work effect
Rate.
The utility model is designed reasonably, structure is simple, easy to use, for the transfer of liquid in laboratory, in liquid relief
It can prevent liquid leakage；By reasonably designing convex block and epitaxial bath, it can be realized push rod and move up, drive liquid in dropper
Body moves up a distance, and dropper front end is made to become blank pipe；And then in pipetting processes, although liquid can to flow down
It is dynamic, but have the sufficient time for shifting, and then reduce pollution, it improves work efficiency.Piston reasonably is devised, in work
Circle is provided with arc groove beyond the Great Wall, and is equipped with sealing ring on the arc groove, can greatly improve piston by the sealing ring
With the sealing performance of inboard wall of tube body, guarantee that the absorption of liquid and discharge can be more stable.
By rationally designing spring, is deformed using the recovery of spring, can be realized moving up for piston, in manual depression push rod
After the air in fluid chamber is discharged, is deformed by the recovery of spring and push up piston, realize the absorption to liquid；By changing
Into the reasonable shell and lid, the connection type engaged by shell and lid of designing stable can fix pipette
In shell；Handle is designed on shell simultaneously, and convenient for the movement of the utility model, finger grips are also designed on shell,
The gripping of operator has been convenient for it, has also facilitated the pushing to putter grip, has kept its operation more convenient smoothly.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (6)
1. a kind of leakproof pipettor, it is characterised in that: including shell (1), be sticked in the lid (2) of shell (1) and be installed on
The pipette being fixed in shell (1) and by lid (2), the pipette include that tube body (3) and tube body (3) inner cavity connect
The logical and fluid chamber (9) being linked together with tube body (3) lower part and the piston (4) for being installed on tube body (3) inside, the piston
(4) push rod (5) are connected with, through the tube head (11) on tube body (3) top, fluid chamber (9) bottom is fixed to be connected the push rod (5)
It is connected to the dropper (10) of taper, which stretches out shell (1).
2. a kind of leakproof pipettor according to claim 1, it is characterised in that: piston (4) bottom and tube body (3) interior bottom
Between be equipped with spring (7), and piston (4) outer ring offer installation sealing ring (8) arc-shaped ring groove (4.1).
3. a kind of leakproof pipettor according to claim 1, it is characterised in that: the tube head (11) offers and push rod (5)
Matched push-rod hole (11.1) is provided with the guide runner (11.2) of axial direction in push-rod hole (11.1) inner wall, and at this
The epitaxial bath (11.3) for penetrating through and tilting upward therewith is provided with by guide runner (11.2).
4. a kind of leakproof pipettor according to claim 3, it is characterised in that: push rod (5) outer wall middle and upper part offers convex block
(5.1), which matches with guide runner (11.2), and when restoring camber of spring after spring (7) is pressed, gently revolves push rod
Handle (6), convex block (5.1) are able to enter epitaxial bath (11.3), to move up with piston (4).
5. a kind of leakproof pipettor according to claim 1, it is characterised in that: shell (1) top, which is provided with, is linked as one
The handle (1.1) of body, and middle and upper part is provided with the finger grips (1.2) convenient for finger grip.
6. a kind of leakproof pipettor according to claim 1, it is characterised in that: the dropper (10) uses soft rubber system
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820375311.XU CN208320838U (en) | 2018-03-20 | 2018-03-20 | A kind of leakproof pipettor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820375311.XU CN208320838U (en) | 2018-03-20 | 2018-03-20 | A kind of leakproof pipettor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208320838U true CN208320838U (en) | 2019-01-04 |
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ID=64783087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820375311.XU Active CN208320838U (en) | 2018-03-20 | 2018-03-20 | A kind of leakproof pipettor |
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| Country | Link |
|---|---|
| CN (1) | CN208320838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117085756A (en) * | 2023-09-28 | 2023-11-21 | 康容生物科技(太仓)有限公司 | Quantitative suction head and tube body of external piston pipettor |
-
2018
- 2018-03-20 CN CN201820375311.XU patent/CN208320838U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117085756A (en) * | 2023-09-28 | 2023-11-21 | 康容生物科技(太仓)有限公司 | Quantitative suction head and tube body of external piston pipettor |
| CN117085756B (en) * | 2023-09-28 | 2024-04-02 | 康容生物科技(太仓)有限公司 | Quantitative suction head and tube body of external piston pipettor |
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