CN211936977U - Liquid-transfering piston cylinder with different ranges - Google Patents
Liquid-transfering piston cylinder with different ranges Download PDFInfo
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- CN211936977U CN211936977U CN202020558126.1U CN202020558126U CN211936977U CN 211936977 U CN211936977 U CN 211936977U CN 202020558126 U CN202020558126 U CN 202020558126U CN 211936977 U CN211936977 U CN 211936977U
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Abstract
The utility model discloses a move liquid piston cylinder with different ranges, move liquid piston cylinder and include piston cylinder main part, top board, pull rod link plate, pull rod fixed plate, holding down plate, piston and push away the stripper plate to and wear to establish first piston cavity and second piston cavity in the piston cylinder main part side by side, first piston cavity and second piston cavity have different ranges. Implement the utility model discloses, through piecing together first piston cavity and second piston cavity, form the 96 pistons of two kinds of different ranges, increase the coverage of moving the liquid range, effectively improved the throughput of 96 pistons, simple structure is reliable, low in manufacturing cost.
Description
Technical Field
The utility model relates to a medical treatment experimental facilities technical field, more specifically relate to a move liquid piston cylinder with different ranges.
Background
Reaction vessels commonly used in bioengineering and medical testing include microplates of different well meshes, etc., which can carry a large number of test samples to perform reactions under the same conditions due to a large number of small wells formed therein. It is often a very basic and important task to add various reaction solutions to these small wells. Biomedical workers have heretofore relied upon pipetting piston cylinders to add various solutions to microwell plates.
The pipetting piston cylinder is usually driven by an electrode and a lead screw to move up and down by a pull rod hanging plate, pull rods with different diameters bring air pressure changes with different degrees, and liquid in different volume ranges can be sucked and sprayed by matching with different pipetting heads. Because the pistons with different measuring ranges share one driving mechanism, the pistons with 1 measuring range can be used for inserting and taking the matched pipetting head at one time.
Traditional liquid-transfering piston cylinder has single track, 8, 96 etc. and wherein single track and 8 are more nimble, but the throughput is lower on the contrary, and 96 piston liquid-transfering capacity is strong even too much to most inspection, because only 1 range, the different ranges that can't cover liquid-transfering in many cases again.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough of prior art, the utility model provides a move liquid piston cylinder with different ranges increases the coverage that moves the liquid range, has effectively improved the throughput who moves the liquid piston, and simple structure is reliable, low in manufacturing cost.
The utility model discloses the technological effect that will reach is realized through following scheme: the utility model provides a move liquid piston cylinder with different ranges, move liquid piston cylinder includes piston cylinder main part, top board, pull rod link plate, pull rod fixed plate, holding down plate, piston push-off plate to and wear to establish first piston cavity and second piston cavity in the piston cylinder main part side by side, first piston cavity and second piston cavity have different ranges.
Preferably, the first piston cavity comprises a first pull rod, a first cavity aluminum tube and a first soft plug, the first pull rod penetrates through the first cavity aluminum tube from the upper end of the first cavity aluminum tube, the first soft plug is fixedly connected with the lower end of the first cavity aluminum tube, and the first soft plug is used for being sleeved with the first liquid moving head.
Preferably, the pull rod hanging plate and the pull rod fixing plate are formed at the upper end of the first pull rod and used for fixing the first pull rod.
Preferably, the upper pressing plate is fixed at the upper end of the first cavity aluminum pipe, and the lower pressing plate is fixed at the lower end of the first cavity aluminum pipe and used for fixing the first cavity aluminum pipe; the piston push-off plate is formed below the lower pressing plate and used for removing the first liquid transferring head.
Preferably, still include elastic component, elastic component and pull rod link plate fixed connection, the piston pushes away takes off board and elastic component fixed connection also.
Preferably, the second piston cavity comprises a second pull rod, a second cavity aluminum tube and a second soft plug, the second pull rod penetrates through the second cavity aluminum tube from the upper end of the second cavity aluminum tube, the second soft plug is fixedly connected with the lower end of the second cavity aluminum tube, and the second soft plug is used for being sleeved with a second liquid transferring head.
Preferably, the pull rod hanging plate and the pull rod fixing plate are formed at the upper end of the second pull rod and used for fixing the second pull rod.
Preferably, the upper pressing plate is fixed at the upper end of the second cavity aluminum pipe, and the lower pressing plate is fixed at the lower end of the second cavity aluminum pipe and used for fixing the second cavity aluminum pipe; the piston push-off plate is formed below the lower pressing plate and used for removing the second liquid transferring head.
Preferably, the first and second soft plugs have a height difference.
The utility model has the advantages of it is following:
1. the first piston cavity and the second piston cavity are assembled together to form two 96 pistons with different ranges, so that the coverage range of the pipetting range is enlarged, the processing capacity of the 96 pistons is effectively improved, the structure is simple and reliable, and the manufacturing cost is low;
2. by the aid of the height difference between the first soft plug and the second soft plug, when the first soft plug is plugged into the first liquid removal head, the second soft plug cannot interfere with the first soft plug.
Drawings
Fig. 1 is a schematic perspective view of a pipetting piston cylinder with different ranges according to the present invention;
fig. 2 is a schematic plan view of a pipetting piston cylinder with different ranges according to the present invention;
FIG. 3 is a schematic plan view of a pipetting piston cylinder with different ranges of the present invention with the main body of the piston cylinder removed;
fig. 4 is an exploded structure diagram of a liquid-transfering piston cylinder with different ranges in the utility model.
Detailed Description
The invention is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 to 4, the embodiment of the present invention provides a liquid-transfering piston cylinder with different ranges, which expands the application of the liquid-transfering piston cylinder by increasing the coverage of the liquid-transfering range, for example, the range of the liquid-transfering piston cylinder of a 200 μ L liquid-transfering head is 10 μ L-200 μ L, the range of the liquid-transfering piston cylinder of a 20 μ L liquid-transfering head is 1 μ L-20 μ L, and the range of the liquid-transfering piston cylinder of the combination of the two different ranges is 1 μ L-200 μ L, which improves the processing capacity, and has a simpler and more reliable structure and a lower cost.
The utility model discloses in, move the liquid piston cylinder and include piston cylinder main part 10, top board 20, pull rod link plate 30, pull rod fixed plate 40, holding down plate 50, piston push away takes off board 60 to and wear to establish first piston cavity 70 and second piston cavity 80 in piston cylinder main part 10 side by side, first piston cavity 70 and second piston cavity 80 have different ranges, have effectively improved the throughput who moves the liquid piston cylinder, and simple structure is reliable, and is with low costs.
The piston cylinder body 10 is of a square structure as a whole, and lugs 11 are arranged on two sides of the piston cylinder body so as to be fixed on the pipetting mechanism. A plurality of accommodating cavities are formed in the piston cylinder body 10, and the first piston cavity 70 and the second piston cavity 80 are arranged in a penetrating manner.
Specifically, the first piston cavity 70 includes a first pull rod 71, a first cavity aluminum tube 72 and a first flexible plug 73, the first pull rod 71 is inserted into the first cavity aluminum tube 72 from the upper end of the first cavity aluminum tube 72, the first flexible plug 73 is fixedly connected to the lower end of the first cavity aluminum tube 72, and the first flexible plug 73 is used for being sleeved with a first pipetting head (not shown in the figure). The pull rod hanging plate 30 and the pull rod fixing plate 40 are formed at the upper end of the first pull rod 71 and used for fixing the first pull rod 71, a driving mechanism (not shown in the figure) is fixedly connected with the pull rod hanging plate 30 and the pull rod fixing plate 40, the pull rod hanging plate 30 and the pull rod fixing plate 40 are driven by the driving mechanism to move up and down, and then the first pull rod 71 is driven to move up and down in the first cavity aluminum pipe 72 to enable pressure change to be generated in the cavity aluminum pipe, so that liquid is pushed to enter or be discharged from a first liquid moving head sleeved below the first soft plug 73. A sealing ring (not shown in the figure) is further arranged between the first pull rod 71 and the first cavity aluminum pipe 72, so that pressure change generated by movement of the first pull rod 71 can be effectively transmitted to the first soft plug 73 and the first liquid transferring head, and suction and spraying control of liquid is realized. When the driving mechanism drives the first pull rod 71 to move upwards, the pressure in the first cavity aluminum pipe 72 is reduced, and liquid is sucked into the first liquid transferring head; when the driving mechanism drives the first pull rod 71 to move downwards, the pressure of the first cavity aluminum pipe 72 is reduced, and the liquid is discharged out of the first liquid transferring head. It should be understood that the present invention is not limited to the specific details and illustrations of the driving mechanism, the fixed connection between the pull rod cover plate and the pull rod fixing plate 40, and the driving principle, which can be adopted in the conventional art.
The upper pressing plate 20 is fixed at the upper end of the first cavity aluminum pipe, and the lower pressing plate 50 is fixed at the lower end of the first cavity aluminum pipe and used for fixing the first cavity aluminum pipe 72. The piston push-off plate 60 is formed below the lower press plate 50 for removing the first pipetting head so as to replace a new one. The utility model discloses a move liquid piston cylinder can also include elastic component (not shown in the picture), elastic component and pull rod link plate 30 fixed connection, the piston pushes away takes off board 60 also with elastic component fixed connection, when first liquid removal head needs to be changed, elastic component pushes away takes off board 60 to the piston and exerts pressure and makes the piston push away takes off board 60 and move down, and then the piston pushes away takes off board 60 and extrudees first liquid removal head down, makes first liquid removal head drop from first soft plug 73. When the lower pressing plate 50 and the piston pushing-off plate 60 are used for pipetting, the piston pushing-off plate 60 is pulled by the elastic component to be attached and fixed with the lower pressing plate 50, when the driving mechanism drives the first pull rod 71 to move downwards and approach to the limit, the pull rod hanging plate 30 can push the elastic component to move downwards, so that the piston pushing-off plate 60 is pushed downwards, and the purpose of scraping the first pipetting head from the first soft plug 73 is realized.
The utility model discloses in, first pull rod 71, first cavity aluminum pipe 72 and first soft plug 73 are preferably respectively 48, form 48 of having first range move liquid piston cylinder.
Further, the second piston cavity 80 comprises a second pull rod 81, a second cavity aluminum tube 82 and a second flexible plug 83, the second pull rod 81 is inserted into the second cavity aluminum tube 82 from the upper end of the second cavity aluminum tube 82, the second flexible plug 83 is fixedly connected with the lower end of the second cavity aluminum tube 82, and the second flexible plug 83 is used for being sleeved with a second liquid-moving head (not shown in the figure). The pull rod hanging plate 30 and the pull rod fixing plate 40 are formed at the upper end of the second pull rod 81 and used for fixing the second pull rod 81, the driving mechanism drives the pull rod hanging plate 30 and the pull rod fixing plate 40 to move up and down, and further drives the second pull rod 81 to move up and down in the second cavity aluminum pipe 82 so as to generate pressure change in the cavity aluminum pipe, and therefore liquid is pushed to enter or be discharged from a second liquid moving head sleeved below the second soft plug 83. And a sealing ring is arranged between the second pull rod 81 and the second cavity aluminum pipe 82, so that the pressure change generated by the movement of the second pull rod 81 can be effectively transmitted to the second soft plug 83 and the second liquid transferring head, and the suction and spray control of liquid is realized. When the driving mechanism drives the second pull rod 81 to move upwards, the pressure in the second cavity aluminum tube 82 is reduced, and liquid is sucked into the second liquid transferring head; when the driving mechanism drives the second pull rod 81 to move downwards, the pressure of the second cavity aluminum pipe 82 is reduced, and the liquid is discharged out of the second liquid transferring head.
The upper pressure plate 50 is fixed at the upper end of the second cavity aluminum tube 82 and the lower pressure plate 50 is fixed at the lower end of the second cavity aluminum tube 82, and is used for fixing the second cavity aluminum tube 82. The piston push-off plate 60 is formed below the lower press plate 50 for removing the second pipetting head so as to replace a new one. The utility model discloses a move liquid piston cylinder can also include elastic component, elastic component and the 30 fixed connection of pull rod link plate, piston push-off plate 60 also with elastic component fixed connection, when the second liquid head is moved to needs to be changed, elastic component pushes away push-off plate 60 to apply pressure and makes piston push-off plate 60 move downwards, and then piston push-off plate 60 moves liquid head extrusion downwards to the second, makes the second liquid head drop from second soft plug 83. When the lower pressing plate 50 and the piston pushing-off plate 60 are used for pipetting, the piston pushing-off plate 60 is pulled up by the elastic component and is attached and fixed with the lower pressing plate 50, when the driving mechanism drives the second pull rod 81 to move downwards and is close to the limit, the pull rod hanging plate 30 can push the elastic component to move downwards, so that the piston pushing-off plate 60 is pushed downwards, and the purpose of scraping the second pipetting head from the second soft plug 83 is achieved.
The utility model discloses in, second pull rod 81, second cavity aluminum pipe 82 and second soft plug 83 are preferably respectively 48, form 48 of having the second range move liquid piston cylinder.
As a further improvement of the present invention, the first soft plug 73 and the second soft plug 83 have a height difference, so that when the first soft plug 73 is inserted into the first liquid-moving head, the second soft plug 83 does not interfere with the first liquid-moving head. Due to the different ranges of the first piston chamber 70 and the second piston chamber 80, the diameters of the first soft plug 73 and the second soft plug 83 are different, so that when a plug with a larger diameter is inserted into the pipetting head, the plug with a smaller diameter does not interfere with the pipetting head even in the hole of the pipetting head. More preferably, the difference between the heights of the first soft plug 73 and the second soft plug 83 is 20 μ L.
The utility model discloses a move liquid piston cylinder is equivalent to be in the same place first piston cavity 70 and second piston cavity 80 piecing together, forms the 96 pistons of two kinds of different ranges, has effectively improved the throughput of 96 pistons, and simple structure is reliable, low in manufacturing cost.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a move liquid piston cylinder with different ranges, its characterized in that, move liquid piston cylinder includes piston cylinder main part, top board, pull rod link plate, pull rod fixed plate, holding down plate, piston push-off plate to and wear to establish first piston cavity and second piston cavity in the piston cylinder main part side by side, first piston cavity and second piston cavity have different ranges.
2. The pipetting piston cylinder with different ranges as recited in claim 1 wherein the first piston cavity comprises a first pull rod, a first cavity aluminum tube and a first flexible plug, the first pull rod is inserted into the first cavity aluminum tube from the upper end of the first cavity aluminum tube, the first flexible plug is fixedly connected with the lower end of the first cavity aluminum tube, and the first flexible plug is used for sleeving the first pipetting head.
3. A pipetting piston cylinder with different ranges as recited in claim 2 wherein the pull rod hanging plate and the pull rod fixing plate are formed at the upper end of the first pull rod for fixing the first pull rod.
4. The pipette piston cylinder with different measuring ranges as recited in claim 2, wherein the upper pressing plate is fixed at the upper end of the first cavity aluminum tube and the lower pressing plate is fixed at the lower end of the first cavity aluminum tube for fixing the first cavity aluminum tube; the piston push-off plate is formed below the lower pressing plate and used for removing the first liquid transferring head.
5. A pipetting piston cylinder with different ranges as recited in claim 1 further comprising an elastic assembly fixedly connected to the pull rod hanging plate, said piston stripper plate also being fixedly connected to the elastic assembly.
6. The pipetting piston cylinder with different ranges as recited in claim 2 wherein the second piston cavity comprises a second pull rod, a second cavity aluminum tube and a second flexible plug, the second pull rod is arranged in the second cavity aluminum tube from the upper end of the second cavity aluminum tube, the second flexible plug is fixedly connected with the lower end of the second cavity aluminum tube, and the second flexible plug is used for sleeving the second pipetting head.
7. A pipetting piston cylinder with different ranges as recited in claim 6 wherein the pull rod hanging plate and the pull rod fixing plate are formed at the upper end of the second pull rod for fixing the second pull rod.
8. The pipette piston cylinder with different ranges according to claim 6, wherein the upper pressure plate is fixed at the upper end of the second cavity aluminum tube and the lower pressure plate is fixed at the lower end of the second cavity aluminum tube for fixing the second cavity aluminum tube; the piston push-off plate is formed below the lower pressing plate and used for removing the second liquid transferring head.
9. Pipetting piston cylinder with different pipetting ranges as recited in claim 6 wherein the first soft plug and the second soft plug have a height difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020558126.1U CN211936977U (en) | 2020-04-15 | 2020-04-15 | Liquid-transfering piston cylinder with different ranges |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020558126.1U CN211936977U (en) | 2020-04-15 | 2020-04-15 | Liquid-transfering piston cylinder with different ranges |
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| Publication Number | Publication Date |
|---|---|
| CN211936977U true CN211936977U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020558126.1U Active CN211936977U (en) | 2020-04-15 | 2020-04-15 | Liquid-transfering piston cylinder with different ranges |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114733590A (en) * | 2022-05-16 | 2022-07-12 | 苏州贝康医疗器械有限公司 | Liquid transfer device and liquid transfer workstation |
| WO2024169942A1 (en) * | 2023-02-16 | 2024-08-22 | 北京青元开物技术有限公司 | Compatible pipetting module, liquid workstation and application thereof |
-
2020
- 2020-04-15 CN CN202020558126.1U patent/CN211936977U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114733590A (en) * | 2022-05-16 | 2022-07-12 | 苏州贝康医疗器械有限公司 | Liquid transfer device and liquid transfer workstation |
| CN114733590B (en) * | 2022-05-16 | 2023-10-03 | 苏州贝康医疗器械有限公司 | Pipetting device and pipetting workstation |
| WO2024169942A1 (en) * | 2023-02-16 | 2024-08-22 | 北京青元开物技术有限公司 | Compatible pipetting module, liquid workstation and application thereof |
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