CN219385101U - Magnetic attraction device - Google Patents
Magnetic attraction device Download PDFInfo
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- CN219385101U CN219385101U CN202223597969.0U CN202223597969U CN219385101U CN 219385101 U CN219385101 U CN 219385101U CN 202223597969 U CN202223597969 U CN 202223597969U CN 219385101 U CN219385101 U CN 219385101U
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- magnetic attraction
- lifting platform
- driving
- base
- attraction device
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Abstract
The utility model provides a magnetic attraction device, and relates to the field of biological extraction equipment. The magnetic attraction device comprises a base, a magnetic attraction piece, a lifting platform and a driving piece. The magnetic attraction piece is arranged on the base; the lifting platform is movably arranged on the base and is used for placing a sample; the driving piece is arranged on the base, is in transmission connection with the lifting platform and is used for driving the lifting platform to move along the vertical direction so as to be close to or far away from the magnetic attraction piece. The driving force is applied to the lifting platform through the driving piece so as to drive the lifting platform to ascend or descend relative to the magnetic attraction piece, so that the magnetic attraction piece and the sample are magnetically attracted or separated, the size and the magnetic attraction time of the magnetic attraction can be effectively controlled, the sample is not required to be frequently transferred, and the purification efficiency of the sample is remarkably improved.
Description
Technical Field
The utility model relates to the field of biological extraction equipment, in particular to a magnetic attraction device.
Background
Nucleic acid is taken as a carrier of genetic information and the basis of gene expression, is an important substance in modern biological research, and can separate and extract sample nucleic acid in a biological sample with high quality, thereby directly affecting the effectiveness of subsequent biological detection results. Meanwhile, nucleic acid extraction is also an important link for realizing high-throughput automatic biological detection by the automatic biological detection equipment.
In the prior art, a magnetic device for extracting sample nucleic acid by adopting a magnetic bead method is complex in structure and unfavorable for the overall structural optimization of automatic biological detection equipment, so that how to purify the sample nucleic acid by using the magnetic device with a compact structure becomes one of the technical problems to be solved in the prior art.
Disclosure of Invention
The utility model aims to provide a magnetic attraction device which can effectively control the magnitude and the magnetic attraction time of magnetic attraction without frequently transferring samples, thereby improving the purification efficiency of the samples.
Embodiments of the present utility model are implemented as follows:
in a first aspect, the present utility model provides a magnetic attraction device comprising:
a base;
the magnetic attraction piece is arranged on the base;
the lifting platform is movably arranged on the base and is used for placing a sample;
the driving piece is arranged on the base, is in transmission connection with the lifting platform and is used for driving the lifting platform to move along the vertical direction so as to be close to or far away from the magnetic attraction piece.
In an optional embodiment, the magnetic attraction device further comprises a transmission part, wherein the transmission part is connected with the output end of the driving part and movably connected with the lifting platform, and the transmission part is used for moving along the horizontal direction under the driving action of the driving part and driving the lifting platform to move along the vertical direction.
In an alternative embodiment, the transmission member is provided with a sliding hole, and the sliding hole extends obliquely;
the lifting platform is provided with a first sliding part which is in sliding fit with the sliding hole.
In an alternative embodiment, the lifting platform is provided with a second sliding part, the magnetic attraction device further comprises a guide rail, the guide rail extends along the vertical direction, and the second sliding part is in sliding fit with the guide rail.
In an alternative embodiment, the drive member comprises a motor and a drive shaft, the drive shaft being connected to the motor, the drive shaft being coupled to the drive member screw.
In an alternative embodiment, the driving member comprises a cylinder which is horizontally arranged and is connected with the transmission member.
In an alternative embodiment, the driving member comprises an electromagnet for generating a attractive or repulsive magnetic force to the driving member.
In an alternative embodiment, the magnetic attraction member is annular or rod-shaped.
In an alternative embodiment, the base comprises a bottom plate, a supporting member and a mounting plate, wherein the mounting plate is arranged at intervals with the base plate, the supporting member is connected between the bottom plate and the mounting plate, the driving member is arranged between the bottom plate and the mounting plate, and the magnetic attraction member is arranged on the mounting plate.
In an optional embodiment, the magnetic attraction device further comprises a deep hole plate, a plurality of containing holes are formed in the deep hole plate, the containing holes are used for containing samples, the number of the magnetic attraction pieces is multiple, and the magnetic attraction pieces are in one-to-one correspondence with the containing holes.
The magnetic attraction device provided by the embodiment of the utility model has the beneficial effects that: the driving force is applied to the lifting platform through the driving piece so as to drive the lifting platform to ascend or descend relative to the magnetic attraction piece, so that the magnetic attraction piece and the sample are magnetically attracted or separated, the size and the magnetic attraction time of the magnetic attraction can be effectively controlled, the sample is not required to be frequently transferred, and the purification efficiency of the sample is remarkably improved.
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 embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a magnetic attraction device according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a descending state of a lifting platform of a magnetic attraction device according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of an ascending state of a lifting platform of a magnetic attraction device according to an embodiment of the present utility model.
Icon: 10-a magnetic attraction device; 100-base; 110-a bottom plate; 120-support; 130-mounting plate; 200-magnetic attraction pieces; 300-lifting platform; 310-a first slide; 320-a second slide; 400-driving member; 410-an electric motor; 420-a drive shaft; 500-deep well plates; 510-an accommodating hole; 600-driving piece; 610-a sliding hole; 700-guide rail.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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 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 definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 3, the present utility model provides a magnetic attraction device 10 suitable for an automated biological detection apparatus, particularly, for purifying sample nucleic acid, but not limited thereto.
The magnetic attraction device 10 comprises a base 100, a magnetic attraction piece 200, a lifting platform 300, a driving piece 400 and a deep hole plate 500.
Wherein, the magnetic attraction piece 200 and the driving piece 400 are both fixedly arranged on the base 100, the lifting platform 300 is movably arranged on the base 100, the deep hole plate 500 is arranged on the lifting platform 300, and the deep hole plate 500 is used for placing samples. The driving piece 400 is in transmission connection with the lifting platform 300, and the driving piece 400 is used for driving the lifting platform 300 to move along the vertical direction so as to be close to or far away from the magnetic attraction piece 200.
In this embodiment, the driving force is applied to the lifting platform 300 by the driving member 400 to drive the lifting platform 300 to ascend or descend relative to the magnetic attraction member 200, so that the magnetic attraction member 200 releases or maintains magnetic attraction to magnetic substances (such as magnetic beads) in a sample solution, the magnitude of magnetic attraction force and the magnetic attraction time can be effectively controlled, and samples do not need to be frequently transferred, so that the purification efficiency of the samples is remarkably improved.
Alternatively, the magnetic attraction piece 200 may be an annular magnet ring or a bar-shaped magnet rod, so as to adapt to different sample requirements and different magnetic attraction volume requirements, thereby improving the adaptability of the magnetic attraction device 10. Of course, in other embodiments of the present utility model, the magnetic attraction member 200 may take other shapes, which is not specifically limited herein.
It can be understood that the deep hole plate 500 is provided with a plurality of accommodating holes 510, the accommodating holes 510 are used for accommodating samples, the number of the magnetic attraction pieces 200 includes a plurality of magnetic attraction pieces 200 and the plurality of accommodating holes 510 are in one-to-one correspondence, so that the plurality of magnetic attraction pieces 200 respectively act on the samples accommodated in the plurality of accommodating holes 510, thereby improving the magnetic attraction effect.
Further, the base 100 includes a bottom plate 110, a supporting member 120 and a mounting plate 130, the mounting plate 130 is spaced from the base 100, the supporting member 120 is connected between the bottom plate 110 and the mounting plate 130, the driving member 400 is arranged between the bottom plate 110 and the mounting plate 130, the magnetic attraction member 200 is arranged on the mounting plate 130, the overall layout is compact and reasonable, and the gap space between the mounting plate 130 and the bottom plate 110 is fully utilized.
Further, the magnetic attraction device 10 further includes a transmission member 600, where the transmission member 600 is connected to the output end of the driving member 400 and movably connected to the lifting platform 300, and the transmission member 600 is used to move in the horizontal direction under the driving action of the driving member 400 and drive the lifting platform 300 to move in the vertical direction.
In this embodiment, the plane of the bottom plate 110 of the base 100 is regarded as a horizontal plane, so that the driving member 400 is horizontally disposed, and the driving member 600 can reciprocate along a horizontal direction under the driving action of the driving member 400 and convert the reciprocating motion into a motion in a vertical direction of the lifting platform 300, thereby achieving the purpose of steering. Therefore, compared with the existing driving piece 400 in the vertical direction, the driving piece 400 of the magnetic attraction device 10 provided by the utility model occupies smaller size in the vertical direction, so that space waste is avoided, and meanwhile, the whole magnetic attraction device 10 is more compact and reasonable in layout, and the internal space of the base 100 is fully utilized.
Further, the transmission member 600 is provided with a sliding hole 610, the sliding hole 610 is formed on a vertical plane of the transmission member 600, the vertical plane of the sliding hole 610 is parallel to the vertical plane of the transmission member 600 in the moving direction, and the sliding hole 610 extends obliquely on the vertical plane of the transmission member 600.
In this embodiment, the lifting platform 300 is provided with a first sliding portion 310, and the first sliding portion 310 may extend into the sliding hole 610 and slidably engage with the sliding hole 610. Under the driving action of the driving piece 400, the driving piece 600 is enabled to move along the horizontal direction far away from or close to the driving piece 400, the driving piece 600 drives the sliding hole 610 to move along the horizontal direction far away from or close to the driving piece 400, the first sliding part 310 moves along the inclined extending direction of the sliding hole 610 under the limiting action of the sliding hole 610, and accordingly the lifting platform 300 is driven to move along the vertical direction, and the horizontal direction movement of the driving piece 600 is converted into the movement of the lifting platform 300 along the vertical direction.
Further, the lifting platform 300 is provided with a second sliding portion 320, the magnetic attraction device 10 further comprises a guide rail 700, the guide rail 700 extends along the vertical direction, and the second sliding portion 320 is in sliding fit with the guide rail 700.
In the present embodiment, the second sliding portion 320 vertically moves along the extending direction of the guide rail 700 during the ascending or descending movement of the elevating platform 300, thereby playing a guiding and limiting role on the elevating platform 300, ensuring that the elevating platform 300 stably moves in the vertical direction.
Further, the driving member 400 may be a motor 410, and a driving shaft 420 is disposed at an output end of the motor 410, the driving shaft 420 is connected to the motor 410, and the driving shaft 420 is in screw fit with the transmission member 600.
In this embodiment, the driving member 400 drives the driving shaft 420 to rotate forward or backward, so as to drive the transmission member 600 to move toward or away from the motor 410 along the extending direction of the driving shaft 420.
In other embodiments of the present utility model, the driving member 400 may also be a cylinder (not shown), which is disposed horizontally and connected to the driving member 600, so as to drive the driving member 600 to move toward or away from the motor 410; furthermore, the driving member 400 may be an electromagnet (not shown), and the driving member 600 may be moved toward or away from the motor 410 by energizing the electromagnet to generate a magnetic attraction force or a magnetic repulsion force to the driving member 600. Of course, the driving member 400 is not limited thereto, and may be provided in other arrangements, and is not particularly limited herein.
In summary, the magnetic attraction device 10 is provided in the present utility model, the driving member 400 applies the driving force to the lifting platform 300 to drive the lifting platform 300 to ascend or descend relative to the magnetic attraction member 200, so as to realize the magnetic attraction or separation between the magnetic attraction member 200 and the sample, effectively control the magnitude of the magnetic attraction force and the magnetic attraction time, and avoid frequent sample transfer, thereby significantly improving the purification efficiency of the sample.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A magnetic attraction device, comprising:
a base;
the magnetic attraction piece is arranged on the base;
the lifting platform is movably arranged on the base and is used for placing a sample;
the driving piece is arranged on the base, is in transmission connection with the lifting platform and is used for driving the lifting platform to move along the vertical direction so as to be close to or far away from the magnetic attraction piece.
2. The magnetic attraction device according to claim 1, further comprising a transmission member, wherein the transmission member is connected with the output end of the driving member and movably connected with the lifting platform, and the transmission member is used for moving in a horizontal direction under the driving action of the driving member and driving the lifting platform to move in a vertical direction.
3. The magnetic attraction device according to claim 2, wherein the transmission member is provided with a sliding hole, and the sliding hole extends obliquely;
the lifting platform is provided with a first sliding part which is in sliding fit with the sliding hole.
4. The magnetic attraction device according to claim 1, wherein the lifting platform is provided with a second sliding part, the magnetic attraction device further comprising a guide rail extending in a vertical direction, the second sliding part being in sliding engagement with the guide rail.
5. A magnetic attraction device according to claim 2, wherein the drive member comprises a motor and a drive shaft, the drive shaft being connected to the motor, the drive shaft being screw-fitted to the transmission member.
6. The magnetic attraction device according to claim 2, wherein the driving member comprises a cylinder which is horizontally disposed and connected to the transmission member.
7. A magnetic attraction device as claimed in claim 2, wherein the driving member comprises an electromagnet for generating an attracting or repelling magnetic force to the driving member.
8. The magnetic attraction device according to claim 1, wherein the magnetic attraction member has a ring shape or a rod shape.
9. The magnetic attraction device according to claim 1, wherein the base comprises a bottom plate, a support member and a mounting plate, the mounting plate is disposed at an interval from the base plate, the support member is connected between the bottom plate and the mounting plate, the driving member is disposed between the bottom plate and the mounting plate, and the magnetic attraction member is disposed on the mounting plate.
10. The magnetic attraction device according to claim 1, further comprising a deep hole plate, wherein a plurality of accommodating holes are formed in the deep hole plate, the accommodating holes are used for accommodating samples, the number of the magnetic attraction pieces comprises a plurality of magnetic attraction pieces, and the plurality of magnetic attraction pieces are in one-to-one correspondence with the plurality of accommodating holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223597969.0U CN219385101U (en) | 2022-12-30 | 2022-12-30 | Magnetic attraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223597969.0U CN219385101U (en) | 2022-12-30 | 2022-12-30 | Magnetic attraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219385101U true CN219385101U (en) | 2023-07-21 |
Family
ID=87171601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223597969.0U Active CN219385101U (en) | 2022-12-30 | 2022-12-30 | Magnetic attraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219385101U (en) |
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2022
- 2022-12-30 CN CN202223597969.0U patent/CN219385101U/en active Active
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