CN201295611Y - Pipetting device and micro pipette thereof - Google Patents
Pipetting device and micro pipette thereof Download PDFInfo
- Publication number
- CN201295611Y CN201295611Y CNU2008201342379U CN200820134237U CN201295611Y CN 201295611 Y CN201295611 Y CN 201295611Y CN U2008201342379 U CNU2008201342379 U CN U2008201342379U CN 200820134237 U CN200820134237 U CN 200820134237U CN 201295611 Y CN201295611 Y CN 201295611Y
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- China
- Prior art keywords
- pipeline
- rotating shaft
- hole
- dispenser
- row
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- Expired - Lifetime
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Abstract
The utility model relates to a pipetting device and a micro pipette thereof. The micro pipette is arranged on the pipetting device and comprises a pipette body, a rotating shaft and a swinging piece; the rotating hole and the connecting hole of the pipette body are communicated with each other; an accommodating pipeline and a pipetting pipeline formed in the pipette body are communicated with the rotating hole; the rotating shaft is pivotally and rotatably arranged in the rotating hole and provided with a run-through pipeline and a switching pipeline; a first abutting port and the second abutting port of the run-through pipeline are respectively abutted against the accommodating pipeline and the pipetting pipeline; the switching pipeline is provided with a third abutting port and is communicated with the run-through pipe; and the swinging piece is fixedly connected at the side of the rotating shaft. The pipetting device and the micro pipette thereof with simple structures can easily pipette liquid of micro amount and have the advantages of simple structures, easy maintenance, no space occupation, low cost and the like.
Description
Technical field
The utility model refers to a kind of dispenser and micro-dispenser thereof that sucks and discharge quantitative liquid especially about a kind of dispenser and micro-dispenser thereof.
Background technology
Trace dispenser (or claiming micropipet, pipettor or suction and injection device) can be widely used in the laboratory in various fields such as chemistry, biology, medical science, all occupies critical role at education experiment or on the practical medical engineering no matter be.
The trace dispenser can move in another container to imbitition in the container and with it, with operations such as the mixing of carrying out liquid or measurements, by the help of micro-dispenser, person skilled can be controlled the absorption and the discharge rate of liquid accurately, thereby reaches experimental data requirement accurately.
Known micro-dispenser can be divided into hand and electronic type roughly, and the micro-dispenser of hand must be dependent on and manually carry out the suction operation, and it must repeat a large amount of suction actions, therefore suitable expend man-hour and does not have high workload efficient.
In view of the inconvenience of hand trace dispenser, electronic type dispenser thereby arise at the historic moment, yet, though the electronic type dispenser can provide personnel to carry out the suction operation more efficiently, its device construction complexity, the quite high and maintenance of cost of manufacture is difficult for.
In addition, most micro-dispenser all carries out the suction operation with single (or a plurality of) suction mouth, be that liquid is drawn and outpoured via same outlet, therefore, after personnel must earlier be immersed the predetermined container imbitition with geat, move to again to discharge again behind another container top and outpour, its suction action is comparatively various, therefore, if our desire is applied to automation equipment with this micro-dispenser, then needing complicated structure to reach bigger space can the aforesaid suction action of complete realization.
Edge is, the above-mentioned disappearance of this creator thoughts can be improved, and is that the spy concentrates on studies and cooperates the application of scientific principle, proposes a kind of reasonable in design and effectively improve the utility model of above-mentioned disappearance finally.
The utility model content
Main purpose of the present utility model, be to provide a kind of dispenser and micro-dispenser thereof, it can realize the utlity model has the dispensing operation of micro liquid simple structure, do not take up space, maintain advantages such as easy and with low cost with simple manner of execution.
In order to achieve the above object, the utility model provides a kind of micro-dispenser, comprise: a body, it has one changes hole, and connects that hole, holds pipeline and a row annotates pipeline, this commentaries on classics hole and this connect hole radially being opened on the circumferential surface of this body along this body, and this commentaries on classics hole and this connect the hole and are connected with each other and lead in this body, and this holds pipeline and is formed in this body and with this commentariess on classics hole and is connected, and this row's notes pipeline also is connected with this commentaries on classics hole and axially is opened in an end of this body; One rotating shaft, it is pivotally installed in this commentaries on classics hole, this rotating shaft has always threads a pipe and a switching pipeline, this connects pipeline this rotating shaft of radially perforation along this rotating shaft, this perforation pipe ends respectively has one first docking port and one second docking port, and this first docking port and this second docking port hold pipeline with this respectively and this row notes pipeline connects, this transfer tube road has the 3rd docking port that is opened in the periphery of this rotating shaft, and this switching pipeline is along the radially moulding of this rotating shaft and be connected with this perforation pipeline; And a swing component, it is fixed in this rotating shaft side.
In order to achieve the above object, the utility model provides a kind of dispenser again, comprising: a pedestal, and it is provided with at least one column and and is fixed in fixed arm on this column; One movement device group, it comprises a driven unit, a floating junction and a float plate, and this driven unit is arranged on this pedestal, and this float plate is slidedly arranged on this column, and this floating junction connects this driven unit and this float plate; One micro-dispenser, it comprises a body, one rotating shaft and a swing component, this body has one changes the hole, one connects the hole, one holds pipeline and row's notes pipeline, this commentaries on classics hole and this connect hole radially being opened on the circumferential surface of this body along this body, and this commentaries on classics hole and this connect the hole and are connected with each other and lead in this body, this holds pipeline and is formed in this body and is connected with this commentaries on classics hole, this row annotates the end that pipeline also is connected with this commentaries on classics hole and axially is opened in this body, this rotating shaft is pivotally installed in this commentaries on classics hole, this rotating shaft has always threads a pipe and a switching pipeline, this connects pipeline this rotating shaft of radially perforation along this rotating shaft, this perforation pipe ends respectively has one first docking port and one second docking port, and this first docking port and this second docking port hold pipeline with this respectively and this row notes pipeline connects, this transfer tube road has the 3rd docking port that is opened in the periphery of this rotating shaft, this switching pipeline is along the radially moulding of this rotating shaft and be connected with this perforation pipeline, this swing component is fixed in this rotating shaft side, and this swing component is connected in this float plate; And a placing platform, its correspondence is arranged at this place, trace dispenser below.
The utlity model has following beneficial effect:
When this rotating shaft is rotated, this is first years old, second and third docking port can be followed rotation, and this first docking port can be held to remove on the pipeline and change and connects the hole with this and be connected by this, the 3rd docking port then is transferred to this synchronously to be held on the pipeline and with it and is connected, at this moment, quantitative liquid can be towed to this voluntarily to be held in the pipeline, when this rotating shaft goes back to the origin-location again and makes this perforation pipeline connect this once more to hold pipeline, liquid is annotated pipeline along this row immediately and is outpoured, as mentioned above, it can realize the dispensing operation of micro liquid the utlity model has simple structure with simple structure and manner of execution, do not take up space, maintain advantages such as easy and with low cost.
For enabling further to understand feature of the present utility model and technology contents, see also following relevant detailed description of the present utility model and graphic, yet appended graphic only for reference and explanation usefulness is not to be used for the utility model is limited.
Description of drawings
Fig. 1 is the three-dimensional exploded view of micro-dispenser of the present utility model.
Fig. 2 is the commentaries on classics hole of micro-dispenser of the present utility model and the enlarged diagram of rotating shaft.
Fig. 3 is the three-dimensional combination figure of micro-dispenser of the present utility model.
Fig. 4 is the action schematic diagram () of micro-dispenser of the present utility model.
Fig. 5 is the action schematic diagram (two) of micro-dispenser of the present utility model.
Fig. 6 is the three-dimensional combination figure of dispenser of the present utility model.
Fig. 7 drives the action schematic diagram of micro-dispenser imbitition for movement device group of the present utility model.
The action schematic diagram of Fig. 8 micro-dispenser row fluid injection body for movement device group of the present utility model drives.
The primary clustering symbol description
1 micro-dispenser
11 bodys
111 change the hole
112 connect the hole
113 hold pipeline
114 rows annotate pipeline
115 rows annotate joint
116 aspiration connection
12 rotating shafts
121 connect pipeline
1,211 first docking ports
1,212 second docking ports
122 switching pipelines
1221 the 3rd docking ports
123 flange parts
13 swing components
131 swing arms
1311 coupling holes
132 connecting rods
14 annotate pipe
15 flexible pipes
16 volumes are adjusted assembly
161 piston rods
1611 pistons
162 hold-doun nuts
1621 perforation
163 compression springs
164 adjust nut
2 pedestals
21 columns
22 fixed arms
3 movement device groups
31 driven units
32 floating junctions
33 float plate
4 placing platform
41 liquid containers
5 micrometers
6 movement device groups
61 driven units
62 floating junctions
63 float plate
The specific embodiment
See also Fig. 1 to Figure 8 shows that the utility model dispenser and micro-dispenser thereof, wherein, micro-dispenser 1 comprises a body 11, a rotating shaft 12, a swing component 13, annotates pipe 14, one flexible pipe 15 and a volume is adjusted assembly 16.
See also Fig. 1 to shown in Figure 3, this body 11 has one to be changeed hole 111, and connects that hole 112, holds pipeline 113 and a row annotates pipeline 114.
This commentaries on classics hole 111 and this connect hole 112 along radially being opened on the circumferential surface of this body 11 of this body 11, and this commentaries on classics hole 111 is one to connect the manhole of this body 11, and this commentaries on classics hole 111 connects hole 112 with this and is connected orthogonally in this body 11.
This row annotates the end that pipeline 114 is connected with this commentaries on classics hole 111 and axially is opened in this body 11.This holds pipeline 113 and is formed in this body 11 and opens in the other end of this body 11, and is connected with this commentaries on classics hole 111 vertically.
This body 11 is provided with a row and annotates a joint 115 and an aspiration connection 116, and this row annotates joint 115 and is arranged in this row's notes pipeline 114, and 116 of this aspiration connection are arranged in this and connect hole 112.
This rotating shaft 12 is pivotally installed in this commentaries on classics hole 111, this rotating shaft 12 has always threads a pipe 121, one switching pipeline 122 and two flanges portion 123, this connects pipeline 121 this rotating shaft 12 of radially perforation along this rotating shaft 12, these perforation pipeline 121 two ends respectively have one first docking port 1211 and one second docking port 1212, and this first docking port 1211 and this second docking port 1212 hold pipeline 113 with this respectively and this row notes pipeline 114 connects (as shown in Figure 4), this switching pipeline 122 has the 3rd docking port 1221 that is opened in the periphery of this rotating shaft 12, and this switching pipeline 122 is along the radially moulding of this rotating shaft 12 and be connected orthogonally with this perforation pipeline 121.So, this perforation pipeline 121 is annotated action with this switching pipeline 122 common pipeline path that forms a T-shape in this rotating shaft 12 for the absorption of carrying out liquid and row.
This two flanges portion 123 is for respectively taking shape in the non-circular block of these rotating shaft 12 both sides, and its two ends of respectively stretching out this commentariess on classics hole 111 are corresponding swing component 13 described later and being provided with also.
This swing component 13 includes the connecting rod 132 that two swing arms 131 and connect this two swing arm 131, this two swing arm 131 respectively has a coupling hole 1311, this coupling hole 1311 is to non-circular hole that should flange part 123, the flange part 123 of the both sides of this rotating shaft 12 is arranged at respectively in the coupling hole 1311 of this two swing arm 131, so, by cooperating of the non-circular outer shape of this flange part 123 and this coupling hole 1311, when these swing component 13 swings, can drive this rotating shaft 12 synchronously and rotate.
This notes pipe 14 is the conical pipe that open at two ends, and the termination that its caliber opening is bigger is located on this row notes joint 115, and this flexible pipe 15 is one to have flexible long tube, and the one termination is located on this aspiration connection 116 (as shown in Figure 6).So, can form a complete flow path of the liquid.
See also Fig. 1, this volume is adjusted assembly 16 and is included a piston rod 161, a hold-doun nut 162, a compression spring 163 and an adjustment nut 164.
This hold-doun nut 162 has a perforation 1621, and this hold-doun nut 162 is bolted in the other end of this body 11.This piston rod 161 wears this perforation 1621, and an end of this piston rod 161 has one and is arranged at this and holds piston 1611 in the pipeline 113, and this piston 1611 is made tight fit with the inwall that this holds pipeline 113, and can carry out the linear reciprocation displacement.
This adjustment nut 164 is bolted in the other end of this piston rod 161, and this compression spring 163 is sheathed on this piston rod 161 and two ends press on this adjustment nut 164 and this hold-doun nut 162 respectively.When our desire is adjusted this and is held volume size in the pipeline 113, can will adjust nut 164 precessions or revolve the active force that moves back and follow this compression spring 163, the position that makes this piston 1611 in this holds pipeline 113, advance or retreat and be positioned to expect, so can adjust the volume size that this holds pipeline 113, with absorption and row's notes of control expection quantitative liquid.
See also the initial position of first docking port 1211, second docking port 1212 and the 3rd docking port 1221 that Figure 4 shows that this rotating shaft 12, this held to there is no in the pipeline 113 and stored any liquid this moment.
See also shown in Figure 5, when we desire imbitition and hold in the pipeline 113 to this, earlier with this swing component 13 swings, 90 degree so that this first docking port 1211 is transferred to this connects on the hole 112, and be connected with this aspiration connection 116 and this flexible pipe 15, and this moment, liquid can be held in the pipeline 113 to this by drainage voluntarily.
After in this holds pipeline 113, being full of liquid, we can be rocked to initial position with this swing component 13 again and make first docking port 1211 of this perforation pipeline 121 and second docking port 1212 hold pipeline 113 and this row with this respectively once more to annotate pipeline 114 and be connected (as shown in Figure 4), so, liquid can be taken advantage of a situation and be held in the pipeline 113 along this perforation pipeline 121 and this row notes pipeline 114 and these notes pipe 14 discharges that arrive by this.
See also Fig. 6 to shown in Figure 8, this dispenser includes a micro-dispenser 1, a pedestal 2, a movement device group 3, a placing platform 4 and a micrometer 5.
This pedestal 2 is provided with two columns 21 and a fixed arm 22, and this fixed arm 22 is fixed on this two column 21.
This movement device group 3 includes a driven unit 31, a floating junction 32 and a float plate 33, this driven unit 31 is a pneumatic cylinder, this driven unit 31 is arranged on this pedestal 2, this float plate 33 is located at these driven unit 31 tops and is slidedly arranged on this two column 21, and this floating junction 32 connects this driven unit 31 and this float plate 33.
The body 11 of this trace dispenser 1 is fixed on this fixed arm 22, and the connecting rod 132 of this swing component 13 connects this float plate 33.
These placing platform 4 correspondences are arranged at the below place of this trace dispenser 1, and this placing platform 4 is provided with at least one liquid container 41, for accepting the liquid of arrange notes from this trace dispenser 1.
By above-mentioned composition, when these driven unit 31 outputting powers, can drive this floating junction 32 and make the reciprocal linear displacement movement, and slide up and down together with driving this float plate 33, meanwhile, connect the connecting rod 132 of this float plate 33 and swing arm 131 and also can swing synchronously and make this rotating shaft 12 rotate (Fig. 4 and Fig. 5 are consulted in collocation), thus can be automatically repeatedly carry out aforesaid liquid assimilating and row annotates action.
See also Fig. 7 and shown in Figure 8, can more be provided with a micrometer 5 and another movement device group 6 on the dispenser of the present utility model, this micrometer 5 and this movement device group 6 are arranged at the place, top of this trace dispenser 1, this micrometer 5 is fixedly arranged on the float plate 63 of this movement device group 6, and presses on the adjustment nut 164 of this trace dispenser 1.This driven unit 61 also is a pneumatic cylinder, and when this driven unit 61 drove this floating junction 62, this float plate 63 can make this micrometer 5 automatically move and press on volume and adjust on the adjustment nut 164 of assembly 16.So, can measure the displacement of this piston rod 161, thereby extrapolate the volume size of holding pipeline 113 in this body 11 via micrometer 5.
Effect that can produce via the utility model and characteristics are as the back:
When this rotating shaft 12 is rotated, this is first years old, second and third docking port 1211,1212,1221 can follow rotation, and this first docking port 1211 can be held to remove on the pipeline 113 and change and connects hole 112 with this and be connected by this, the 3rd docking port 1221 then is transferred to this synchronously to be held on the pipeline 113 and with it and is connected, at this moment, quantitative liquid can be held in the pipeline 113 to this by drainage voluntarily, when this rotating shaft 12 goes back to initial position again and makes this perforation pipeline 121 connect this once more to hold pipeline 113, liquid is annotated pipeline 114 along this row immediately and is outpoured, as mentioned above, it can realize the dispensing operation of micro liquid the utlity model has simple structure with simple structure and manner of execution, do not take up space, maintain advantages such as easy and with low cost.
But above the exposure only is the utility model preferred embodiment, and from not limiting interest field of the present utility model with this, therefore the equalization of being done according to the utility model claim changes or modifies, and still belongs to the scope that the utility model is contained.
Claims (10)
1, a kind of micro-dispenser is characterized in that, comprising:
One body, it has one changes hole, and connects that hole, holds pipeline and a row annotates pipeline, this commentaries on classics hole and this connect hole radially being opened on the circumferential surface of this body along this body, and this commentaries on classics hole and this connect the hole and are connected with each other and lead in this body, this holds pipeline and is formed in this body and is connected with this commentariess on classics hole, and this row's notes pipeline also is connected with this commentaries on classics hole and axially is opened in an end of this body;
One rotating shaft, it is pivotally installed in this commentaries on classics hole, this rotating shaft has always threads a pipe and a switching pipeline, this connects pipeline this rotating shaft of radially perforation along this rotating shaft, this perforation pipe ends respectively has one first docking port and one second docking port, and this first docking port and this second docking port hold pipeline with this respectively and this row notes pipeline connects, this transfer tube road has the 3rd docking port that is opened in the periphery of this rotating shaft, and this switching pipeline is along the radially moulding of this rotating shaft and be connected with this perforation pipeline; And
One swing component, it is fixed in this rotating shaft side.
2, micro-dispenser as claimed in claim 1, it is characterized in that: these rotating shaft both sides respectively have a flange part, this swing component has the connecting rod that two swing arms and connect this two swing arm, this two swing arm respectively has a coupling hole, and the flange part of the both sides of this rotating shaft is arranged at respectively in the coupling hole of this two swing arm.
3, micro-dispenser as claimed in claim 2, it is characterized in that: this body is provided with a volume and adjusts assembly, this volume is adjusted assembly and is included a hold-doun nut, one piston rod, one compression spring and one is adjusted nut, this hold-doun nut has a perforation, this holds pipeline and communicates in the other end of this body, this hold-doun nut is bolted in the other end of this body, this piston rod wears this perforation, one end of this piston rod has one and is arranged at this and holds piston in the pipeline, this adjustment nut is bolted in the other end of this piston rod, and this piston rod is located at by this compression spring housing and two ends press on this adjustment nut and this hold-doun nut respectively.
4, micro-dispenser as claimed in claim 2, it is characterized in that: this body is provided with a row and annotates a joint and an aspiration connection, this row annotates joint and is arranged in this row's notes pipeline, this aspiration connection then is arranged in this and connects the hole, more be provided with a flexible pipe and and annotate pipe, this flexible pipe is arranged on this aspiration connection, and this notes pipe is arranged in this row and annotates on the joint.
5, a kind of dispenser is characterized in that, comprising:
One pedestal, it is provided with at least one column and and is fixed in fixed arm on this column;
One movement device group, it comprises a driven unit, a floating junction and a float plate, and this driven unit is arranged on this pedestal, and this float plate is slidedly arranged on this column, and this floating junction connects this driven unit and this float plate;
One micro-dispenser, it comprises a body, one rotating shaft and a swing component, this body has one changes the hole, one connects the hole, one holds pipeline and row's notes pipeline, this commentaries on classics hole and this connect hole radially being opened on the circumferential surface of this body along this body, and this commentaries on classics hole and this connect the hole and are connected with each other and lead in this body, this holds pipeline and is formed in this body and is connected with this commentaries on classics hole, this row annotates the end that pipeline also is connected with this commentaries on classics hole and axially is opened in this body, this rotating shaft is pivotally installed in this commentaries on classics hole, this rotating shaft has always threads a pipe and a switching pipeline, this connects pipeline this rotating shaft of radially perforation along this rotating shaft, this perforation pipe ends respectively has one first docking port and one second docking port, and this first docking port and this second docking port hold pipeline with this respectively and this row notes pipeline connects, this transfer tube road has the 3rd docking port that is opened in the periphery of this rotating shaft, this switching pipeline is along the radially moulding of this rotating shaft and be connected with this perforation pipeline, this swing component is fixed in this rotating shaft side, and this swing component is connected in this float plate; And
One placing platform, its correspondence are arranged at this place, trace dispenser below.
6, dispenser as claimed in claim 5, it is characterized in that: these rotating shaft both sides respectively have a flange part, this swing component has the connecting rod that two swing arms and connect this two swing arm, this two swing arm respectively has a coupling hole, the flange part of the both sides of this rotating shaft is arranged at respectively in the coupling hole of this two swing arm, and the connecting rod of this swing component is connected in this float plate.
7, dispenser as claimed in claim 6, it is characterized in that: this body is provided with a volume and adjusts assembly, this volume is adjusted assembly and is included a hold-doun nut, one piston rod, one compression spring and one is adjusted nut, this hold-doun nut has a perforation, this holds pipeline and communicates in the other end of this body, this hold-doun nut is bolted in the other end of this body, this piston rod wears this perforation, one end of this piston rod has one and is arranged at this and holds piston in the pipeline, this adjustment nut is bolted in the other end of this piston rod, this piston rod is located at by this compression spring housing and two ends press on this adjustment nut and this hold-doun nut respectively, and this driven unit is a pneumatic cylinder.
8, dispenser as claimed in claim 7, it is characterized in that: more be provided with the movement device group that a micrometer and another should trace dispenser tops, this micrometer is fixedly arranged on the float plate of this movement device group, and presses on the adjustment nut of this trace dispenser.
9, dispenser as claimed in claim 7, it is characterized in that: this body is provided with a row and annotates a joint and an aspiration connection, this row annotates joint and is arranged in this row's notes pipeline, this aspiration connection then is arranged in this and connects the hole, more be provided with a flexible pipe and and annotate pipe, this flexible pipe is arranged on this aspiration connection, and this notes pipe is arranged in this row and annotates on the joint.
10, dispenser as claimed in claim 6 is characterized in that: this placing platform is provided with at least one liquid container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201342379U CN201295611Y (en) | 2008-09-19 | 2008-09-19 | Pipetting device and micro pipette thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201342379U CN201295611Y (en) | 2008-09-19 | 2008-09-19 | Pipetting device and micro pipette thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201295611Y true CN201295611Y (en) | 2009-08-26 |
Family
ID=41041570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201342379U Expired - Lifetime CN201295611Y (en) | 2008-09-19 | 2008-09-19 | Pipetting device and micro pipette thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201295611Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043491A (en) * | 2013-03-13 | 2014-09-17 | 精浚科技股份有限公司 | Suction/injection pipe and nucleic acid purification device |
-
2008
- 2008-09-19 CN CNU2008201342379U patent/CN201295611Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043491A (en) * | 2013-03-13 | 2014-09-17 | 精浚科技股份有限公司 | Suction/injection pipe and nucleic acid purification device |
| CN104043491B (en) * | 2013-03-13 | 2016-08-10 | 精浚科技股份有限公司 | Suction pipe fitting |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090826 |