CN212246979U - Magnetic rod sleeve clamping mechanism for nucleic acid extraction instrument - Google Patents
Magnetic rod sleeve clamping mechanism for nucleic acid extraction instrument Download PDFInfo
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- CN212246979U CN212246979U CN202020337986.2U CN202020337986U CN212246979U CN 212246979 U CN212246979 U CN 212246979U CN 202020337986 U CN202020337986 U CN 202020337986U CN 212246979 U CN212246979 U CN 212246979U
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- clamping
- magnetic rod
- nucleic acid
- positioning frame
- rod sleeve
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Abstract
The utility model relates to a bar magnet cover clamping mechanism for nucleic acid extraction appearance belongs to nucleic acid extraction technical field. This bar magnet cover clamping mechanism includes: the positioning frame is provided with a strip-shaped sliding groove, two clamping pieces are arranged on two sides of the sliding groove and are arranged oppositely, the two clamping pieces are hinged with the positioning frame, one opposite side of each clamping piece is provided with a protruding end, the two protruding ends are abutted, and a clamping cavity is formed between the two clamping pieces; two elastic components, two elastic component one end fixed connection be in on the locating rack, two elastic component and two press from both sides tight piece one-to-one, two elastic component's the other end with correspond press from both sides tight piece and be connected, through two elastic component's elasticity pulling two press from both sides tight piece and draw close each other. This bar magnet cover clamping mechanism can provide permanent effectual clamp force, ensures the accurate positioning of bar magnet cover.
Description
Technical Field
The utility model belongs to the technical field of nucleic acid extraction, concretely relates to bar magnet cover clamping mechanism for nucleic acid extraction appearance.
Background
In the process of extracting by using the nucleic acid extractor, the magnetic rod sleeve needs to vibrate up and down back and forth for a long time at a high frequency, and the transverse position of the magnetic rod sleeve can not be changed in the whole vibration process, so that a mechanism is needed to be matched with the magnetic rod sleeve mounting frame to position the magnetic rod sleeve, and the magnetic rod sleeve is ensured to be accurately positioned in the vibration process.
In the existing devices, a common positioning structure is to clamp and position the device by a spring plate. However, the elastic sheet is easy to deform and lose efficacy in the using process, and the elastic sheet loses elasticity, so that the magnetic rod sleeve cannot be clamped, and the positioning effect of the carbon rod sleeve is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned technical problem and provide a bar magnet cover clamping mechanism for nucleic acid extraction appearance, can provide permanent effectual clamp force, ensure the accurate positioning of bar magnet cover.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a bar magnet cover clamping mechanism for a nucleic acid extractor, comprising:
the positioning frame is provided with a strip-shaped sliding groove, two clamping pieces are arranged on two sides of the sliding groove and are arranged oppositely, the two clamping pieces are hinged with the positioning frame, one opposite side of each clamping piece is provided with a protruding end, the two protruding ends are abutted, and a clamping cavity is formed between the two clamping pieces;
two elastic components, two elastic component one end fixed connection be in on the locating rack, two elastic component and two press from both sides tight piece one-to-one, two elastic component's the other end with correspond press from both sides tight piece and be connected, through two elastic component's elasticity pulling two press from both sides tight piece and draw close each other.
The utility model has the advantages that: the magnetic rod sleeve can be firmly clamped through a clamping cavity formed by the two clamping pieces through the arranged positioning frame and the verification extraction instrument, the two clamping pieces can be kept in a clamping state through the arranged elastic component, so that the clamped magnetic rod sleeve cannot shake at will, meanwhile, the magnetic rod sleeve can be conveniently clamped into the clamping cavity through the resilience force of the elastic component, the magnetic rod sleeve is very convenient to use, excessive operation is not needed, and only simple clamping is needed; through this clamping mechanism, can provide permanent effectual clamp force, can not appear becoming flexible along with the live time to can ensure the accurate positioning of bar magnet cover.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, the elastic component is an extension spring, one end of the extension spring is connected with one end of the corresponding clamping piece, and the other end of the extension spring is fixedly connected with the positioning frame.
The beneficial effect of adopting the further scheme is that: do benefit to and press from both sides tight piece and keep the original state for the clamp force is unchangeable, thereby does benefit to and stretches and kick-backs and lay the bar magnet cover.
Furthermore, a first mounting hole is formed in the positioning frame, a connecting bolt matched with the first mounting hole is fixedly connected to the other end of the extension spring, and the extension spring is fixedly connected to the positioning frame through the matching of the connecting bolt and the first mounting hole.
The beneficial effect of adopting the further scheme is that: the installation of the extension spring on the positioning frame is facilitated.
Further, still be equipped with the mounting groove on the locating rack, first mounting hole is established in the mounting groove, be equipped with the spring location piece in the mounting groove, the spring location piece with connecting bolt fixed connection, through the spring location piece is adjusted extension spring's amount of predeformation.
The beneficial effect of adopting the further scheme is that: the pre-deformation quantity of the extension spring can be adjusted through the spring positioning plate, the clamping force can be adjusted, and the operation of a laboratory technician is facilitated.
Furthermore, one end of the clamping piece is provided with a hook hole, one end of the extension spring is hooked in the hook hole, and the other end of the clamping piece is rotatably connected to the positioning frame.
The beneficial effect of adopting the further scheme is that: the connection of the extension spring and the clamping piece is facilitated.
Further, a shaft sleeve inner hexagon is arranged at the other end of the clamping piece, a second mounting hole matched with the shaft sleeve inner hexagon is formed in the positioning frame, and the inner hexagon of the shaft sleeve is connected to the second mounting hole after penetrating through the other end of the clamping piece in a rotating mode.
The beneficial effect of adopting the further scheme is that: the clamping piece can rotate around the inner hexagon of the shaft sleeve.
The magnetic pole sleeve is characterized by further comprising a sliding plate, the sliding plate is arranged in the sliding groove in a sliding mode, and a plurality of magnetic pole sleeves are arranged on one side face of the sliding plate.
The beneficial effect of adopting the further scheme is that: a plurality of magnetic rods can be placed.
Furthermore, a channel communicated with the plurality of magnetic rod sleeves is arranged on the positioning frame.
The beneficial effect of adopting the further scheme is that: the magnetic bar is easy to be put in.
Furthermore, the number of the sliding grooves is 2-3.
The beneficial effect of adopting the further scheme is that: more samples can be taken at one time.
Drawings
Fig. 1 is a schematic perspective view of a magnetic rod sleeve clamping mechanism of the present invention;
fig. 2 is a bottom view of the magnetic rod sleeve clamping mechanism of the present invention;
fig. 3 is an exploded schematic view of the magnetic rod sleeve clamping mechanism of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. magnetic rod cover, 2, axle sleeve allen, 3, locating rack, 4, extension spring, 5, press from both sides tight piece, 6, spout, 7, slide, 8, spring locating piece, 9, passageway, 10, mounting groove, 11, connecting bolt, 12, hook hole, 13, press from both sides tight chamber, 14, first mounting hole, 15, second mounting hole.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Examples
As shown in FIGS. 1 to 3, the present embodiment provides a clamping mechanism for a magnetic rod cover 1 of a nucleic acid extracting apparatus, comprising: a positioning frame 3 and two elastic components.
Be equipped with the spout 6 of rectangular shape on the locating rack 3, 3 levels of locating rack set up, the lower surface at locating rack 3 is established to spout 6, wherein the both ends of spout 6 run through the both sides of locating rack 3, the both sides of spout 6 are equipped with two and press from both sides tight piece 5, two press from both sides tight 5 levels and set up, it is located the lower surface of locating rack 3 to press from both sides tight piece 5, it is articulated with locating rack 3 to press from both sides tight piece 5, it can rotate around articulated department to make to press from both sides tight piece 5, two one side that press from both sides tight 5 is equipped with the bulge end, two bulge end butts, form between two and press from both sides tight chamber 13, can seal tight chamber 13 with pressing from both sides tight piece 5 through two bulge ends, two bulge end separations make to press from both sides tight chamber 13 and can be opened, thereby press from both sides tight chamber 13 with magnetic rod cover 1 card. Two elastomeric element one end fixed connection are on locating rack 3, two elastomeric element and two clamp 5 one-to-one, two elastomeric element's the other end is connected with the tight piece 5 of clamp that corresponds, two clamp pieces 5 of elasticity pulling through two elastomeric element draw close each other, when needs fixed bar cover 1, it enters into spout 6 to push bar cover 1, and the extrusion is with two protruding end separation that press from both sides the correspondence on the piece 5, make bar cover 1 card go into press from both sides tight chamber 13, after bar cover 1 entered into and presss from both sides tight chamber 13, two clamp pieces 5 rotated under the effect of the elastomeric element that corresponds and draw close, will press from both sides tight chamber 13 and seal, make bar cover 1 pressed from both sides tightly to fix in pressing from both sides tight chamber 13.
Preferably, in this embodiment, the elastic component is an extension spring 4, one end of the extension spring 4 is connected with one end of the corresponding clamping piece 5, the other end of the extension spring 4 is fixedly connected with the positioning frame 3, and the two clamping pieces 5 are driven to approach together through the resilience of the extension spring 4. When the magnetic rod sleeve 1 is clamped, the extension spring 4 is in a stretching state, and after the magnetic rod sleeve 1 completely enters the clamping cavity 13, the extension spring 4 draws the two clamping pieces 5 together through resilience force.
Preferably, in this embodiment, a first mounting hole 14 is formed in the lower surface of the positioning frame 3, a thread is formed in the first mounting hole 14, a connecting bolt 11 adapted to the first mounting hole 14 is fixedly connected to the other end of the extension spring 4, and the extension spring 4 is fixedly connected to the positioning frame 3 through the connecting bolt 11 and the first mounting hole 14 in a matching manner. Wherein the extension spring 4 is maintained in a horizontal state.
Preferably, in this embodiment, the positioning frame 3 is further provided with a mounting groove 10, the first mounting hole 14 is formed in the mounting groove 10, the spring positioning piece 8 is arranged in the mounting groove 10, the spring positioning piece 8 is fixedly connected with the connecting bolt 11, and the pre-deformation amount of the extension spring 4 is adjusted through the spring positioning piece 8, so that the tensile force of the extension spring 4 can be adjusted, the clamping force of the two clamping pieces 5 can be adjusted, and the operation of an experimenter can be facilitated.
Preferably, in this embodiment, one end of the clamping piece 5 is provided with a hook hole 12, one end of the extension spring 4 is hooked in the hook hole 12, so that the extension spring 4 is connected with the clamping piece 5, so that the extension spring 4 can pull the clamping piece 5, and the other end of the clamping piece 5 is rotatably connected to the positioning frame 3, so that when the clamping piece 5 rotates, the rebounding tension of the extension spring 4 can pull the clamping piece 5 to restore its original shape.
Preferably, in this embodiment, the other end of the clamping piece 5 is provided with the inner hexagon 2 of the shaft sleeve, the locating rack 3 is provided with a second mounting hole 15 matched with the inner hexagon 2 of the shaft sleeve, the inner hexagon 2 of the shaft sleeve is connected to the second mounting hole 15 after passing through the other end of the clamping piece 5 in a rotating manner, a thread is arranged in the second mounting hole 15, and the clamping piece 5 can rotate around the inner hexagon 2 of the shaft sleeve.
Preferably, in this embodiment, the magnetic pole positioning device further comprises a sliding plate 7, the sliding plate 7 is slidably arranged in the sliding groove 6, a plurality of magnetic pole sleeves 1 are arranged on one side surface of the sliding plate 7, the plurality of magnetic pole sleeves 1 are arranged in a row, a gap is arranged between every two adjacent magnetic pole sleeves 1, the sliding plate 7 slides into the sliding groove 6 along with the sliding plate 7, wherein the sliding groove 6 is in a shape of a "T", the sliding plate 7 can be clamped in the sliding groove 6, after the first magnetic pole sleeve 1 is extruded to separate the two clamping pieces 5, the first magnetic pole sleeve 1 is clamped in the clamping cavity 13 and clamped by the two clamping pieces 5, and the whole sliding plate 7 and the plurality of magnetic pole sleeves 1 are fixedly clamped on the positioning frame 3.
Preferably, in this embodiment, the positioning frame 3 is provided with a channel 9 communicated with the plurality of magnetic rod sleeves 1, so as to conveniently place the magnetic rods.
Preferably, in the embodiment, 2-3 sliding chutes 6 are provided, and corresponding clamping pieces 5 and extension springs 4 are correspondingly provided on two sides of the sliding chute 6, so that multiple rows of magnet bar sleeves 1 can be placed on one positioning frame 3.
When the magnetic rod sleeve is used specifically, the spring positioning pieces 8 are adjusted according to use requirements, so that the pre-deformation amount of the extension spring 4 is adjusted to a proper state, the sliding plate 7 drives the plurality of magnetic rod sleeves 1 to slide in from one ends of the sliding grooves 6 far away from the clamping pieces 5, along with continuous sliding, the first magnetic rod sleeve 1 is contacted with the protruding ends on the two clamping pieces 5 and then continuously pushed in, the first magnetic rod sleeve 1 extrudes the protruding ends on the two clamping pieces 5 to separate the protruding ends, at the moment, the extension spring 4 is in an extension state, so that the first magnetic rod sleeve 1 is clamped into the clamping cavity 13, because a gap is reserved between two adjacent magnetic rod sleeves 1, after the first magnetic rod sleeve 1 is clamped into the clamping cavity 13, the convex ends of the two clamping pieces 5 are close to each other under the action of the resilience force of the extension spring 4 and clamped in the gap between the first magnetic rod sleeve 1 and the second magnetic rod sleeve 1, so that the plurality of magnetic rod sleeves 1 are fixedly clamped. When the magnet rod sleeve 1 needs to be taken out, the magnet rod sleeve 1 is pulled by force, so that the magnet rod sleeve 1 is separated from the clamping control of the two clamping pieces 5.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A bar magnet cover clamping mechanism for a nucleic acid extraction apparatus, comprising:
the positioning frame (3) is provided with a long-strip-shaped sliding groove (6), two clamping pieces (5) are arranged on two sides of the sliding groove (6), the two clamping pieces (5) are oppositely arranged, the two clamping pieces (5) are hinged with the positioning frame (3), one opposite side of each clamping piece (5) is provided with a protruding end, the two protruding ends are abutted, and a clamping cavity (13) is formed between the two clamping pieces (5);
two elastic components, two elastic component one end fixed connection in on locating rack (3), two elastic component and two press from both sides tight piece (5) one-to-one, two elastic component's the other end with correspond press from both sides tight piece (5) and be connected, through two elastic component's elasticity pulling two press from both sides tight piece (5) and draw close each other.
2. The magnetic rod sleeve clamping mechanism for the nucleic acid extractor as claimed in claim 1, wherein the elastic component is an extension spring (4), one end of the extension spring (4) is connected with one end of the corresponding clamping piece (5), and the other end of the extension spring (4) is fixedly connected with the positioning frame (3).
3. The magnetic rod sleeve clamping mechanism for the nucleic acid extractor as claimed in claim 2, wherein the positioning frame (3) is provided with a first mounting hole (14), the other end of the extension spring (4) is fixedly connected with a connecting bolt (11) matched with the first mounting hole (14), and the extension spring (4) is fixedly connected to the positioning frame (3) through the connecting bolt (11) and the first mounting hole (14) in a matched manner.
4. The magnetic rod sleeve clamping mechanism for the nucleic acid extractor as claimed in claim 3, wherein the positioning frame (3) is further provided with a mounting groove (10), the first mounting hole (14) is arranged in the mounting groove (10), a spring positioning plate (8) is arranged in the mounting groove (10), the spring positioning plate (8) is fixedly connected with the connecting bolt (11), and the amount of the pre-deformation of the extension spring (4) is adjusted through the spring positioning plate (8).
5. The magnetic rod sleeve clamping mechanism for the nucleic acid extractor as claimed in claim 2, wherein one end of the clamping piece (5) is provided with a hook hole (12), one end of the extension spring (4) is hooked in the hook hole (12), and the other end of the clamping piece (5) is rotatably connected to the positioning frame (3).
6. The magnetic rod sleeve clamping mechanism for the nucleic acid extractor as claimed in claim 5, wherein the clamping piece (5) is provided with a hexagon socket head (2) at the other end thereof, the positioning frame (3) is provided with a second mounting hole (15) matched with the hexagon socket head (2), and the hexagon socket head (2) is connected to the second mounting hole (15) after passing through the other end of the clamping piece (5) in a rotating manner.
7. The magnetic rod sleeve clamping mechanism for the nucleic acid extracting instrument according to any one of claims 1 to 6, further comprising a sliding plate (7), wherein the sliding plate (7) is slidably disposed in the sliding groove (6), and a plurality of magnetic rod sleeves (1) are disposed on one side surface of the sliding plate (7).
8. The mechanism of claim 7, wherein the positioning frame (3) is provided with a channel (9) communicating with the plurality of magnetic rod covers (1).
9. The magnetic rod sleeve clamping mechanism for the nucleic acid extracting instrument according to any one of claims 1 to 6, wherein the number of the slide grooves (6) is 2 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020337986.2U CN212246979U (en) | 2020-03-17 | 2020-03-17 | Magnetic rod sleeve clamping mechanism for nucleic acid extraction instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020337986.2U CN212246979U (en) | 2020-03-17 | 2020-03-17 | Magnetic rod sleeve clamping mechanism for nucleic acid extraction instrument |
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| Publication Number | Publication Date |
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| CN212246979U true CN212246979U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020337986.2U Active CN212246979U (en) | 2020-03-17 | 2020-03-17 | Magnetic rod sleeve clamping mechanism for nucleic acid extraction instrument |
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| CN (1) | CN212246979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023041042A1 (en) * | 2021-09-17 | 2023-03-23 | 圣湘生物科技股份有限公司 | Nucleic acid extraction and detection device and nucleic acid extraction and detection method |
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2020
- 2020-03-17 CN CN202020337986.2U patent/CN212246979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023041042A1 (en) * | 2021-09-17 | 2023-03-23 | 圣湘生物科技股份有限公司 | Nucleic acid extraction and detection device and nucleic acid extraction and detection method |
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