A multi-purpose magnetic frame

Abstract

The utility model discloses a multi-purpose magnetic frame, including a horizontally arranged frame body provided with a plurality of rows of first tube holes and second tube holes with different apertures and a vertically arranged first side frame and a second side frame located on both sides of the frame body, a magnetic system is arranged below the frame body, the first side frame and the second side frame are respectively provided with a plurality of rows of third tube holes and fourth tube holes with different apertures facing the magnetic system, and at least one adjusting component for adjusting a row of first tube holes is arranged on the upper surface of the frame body, the adjusting component is connected with a clamp located above the first tube hole, and the adjusting component adjusts the clamp to adapt to centrifuge tubes with different apertures. The magnetic frame of the utility model is suitable for test tubes and centrifuge tubes of various specifications, and the experimenter does not need to purchase a magnetic frame separately for each test tube or centrifuge tube, thereby saving the experiment cost and improving the experiment efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic bead separation equipment, in particular to a multi-purpose magnetic frame. Background Art

[0002] Magnetic bead separation technology is often used to process DNA samples in biochemical experiments and medical tests. The use of magnetic beads to separate and extract DNA has been widely used in genetic engineering, research on genetic diseases in medicine, detection of mutant genes, and other fields. The common practice is to add a reagent containing magnetic beads to the DNA sample that needs to be separated and extracted. When no external magnetic field is applied, the reagent in the test tube is fully mixed with the sample so that the magnetic beads adsorb the nucleic acid molecules in the sample. The test tube is then placed on a magnetic stand. The magnetic beads are aggregated by the magnetic system of the magnetic stand or by applying an external magnetic field, and the magnetic beads are separated from the sample solution. The magnetic beads are then washed to obtain the nucleic acid molecules that need to be extracted.

[0003] At present, most of the existing magnetic racks used for magnetic bead separation are designed for 1.5 / 2ml test tubes or centrifuge tubes, and cannot be used to test test tubes or centrifuge tubes of different sizes. However, the requirements for nucleic acid extraction of different samples are different, and a single size of centrifuge tube cannot meet the nucleic acid extraction requirements of various samples in the test, so the laboratory needs to purchase magnetic racks of other specifications separately. However, while purchasing magnetic racks of multiple specifications increases the cost of the experiment, multiple magnetic racks of different specifications are also inconvenient for laboratory management, and operating multiple magnetic racks reduces the efficiency of the experiment. Utility Model Content

[0004] In order to solve the technical problems in the prior art that the same magnetic stand cannot test test tubes or centrifuge tubes of various sizes, purchasing magnetic stands of various specifications increases experimental costs, is inconvenient to manage and reduces experimental efficiency, the utility model provides the following technical solutions.

[0005] The utility model discloses a multi-purpose magnetic frame, comprising a horizontally arranged frame body provided with a plurality of rows of first tube holes and second tube holes with different apertures, and a first side frame and a second side frame vertically arranged on both sides of the frame body, a magnetic system is arranged below the frame body, the first side frame and the second side frame are respectively provided with a plurality of rows of third tube holes and fourth tube holes with different apertures facing the magnetic system, an upper surface of the frame body is provided with at least one adjusting component for adjusting a row of first tube holes, the adjusting component is connected with a clamping piece located above the first tube hole, and the adjusting component adjusts the clamping piece to adapt to centrifuge tubes with different apertures.

[0006] As a further technical solution, the adjusting component includes two first fixed plates fixed to the upper end of the second side frame and rotatably connected to the adjusting screws, and two second fixed plates fixed to the upper end of the first side frame and fixedly connected to the sliding rods. The threads at both ends of the adjusting screws are respectively threadedly connected to the first cross plate and the second cross plate slidably connected to the sliding rods, and the first cross plate and the second cross plate are connected to the clamping member.

[0007] As a further technical solution, the clamping member includes a second half ring fixedly connected to the first transverse plate and a first half ring fixedly connected to the second transverse plate and corresponding to the second half ring.

[0008] As a further technical solution, the first half ring is provided with a groove portion, and the second half ring is provided with a protrusion portion matching the groove portion.

[0009] As a further technical solution, the first side frame and the second side frame are respectively provided with a plurality of first suction cups and second suction cups perpendicular to the horizontal plane.

[0010] As a further technical solution, the first tube holes and the second tube holes are staggered in the same row.

[0011] The beneficial effects of the utility model are as follows: the magnetic frame of the utility model is suitable for test tubes and centrifuge tubes of various specifications; the magnetic frame comprises a frame body, a first side frame and a second side frame; tube holes of various specifications are arranged on the magnetic frame, and clamping pieces are arranged above at least one row of first tube holes; the clamping pieces can be adjusted by adjusting components to adapt to centrifuge tubes of more apertures; experimenters do not need to purchase a magnetic frame separately for each test tube or centrifuge tube, thereby saving experimental costs and improving experimental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model multi-purpose magnetic frame;

[0013] Figure 2 This is a schematic diagram of another viewing angle of the multi-purpose magnetic frame of the utility model;

[0014] Figure 3 It is a schematic diagram of the adjustment components of the multi-purpose magnetic frame of the utility model;

[0015] Figure 4 It is a schematic diagram of the clamping part of the multi-purpose magnetic frame of the utility model;

[0016] In the figure: 1-frame; 101-first tube hole; 102-second tube hole; 2-first side frame; 201-third tube hole; 202-first suction cup; 3-second side frame; 301-fourth tube hole; 302-second suction cup; 4-magnetic system; 5-adjusting component; 501-first fixing plate; 502-second fixing plate; 503-adjusting screw; 504-sliding rod; 505-handle; 506-first horizontal plate; 506-second horizontal plate; 6-clamping member; 601-first half ring; 602-second half ring; 603-groove portion; 604-protrusion portion. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower" and "both sides" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0019] like Figure 1 and Figure 2 As shown, the utility model is a multi-purpose magnetic frame, including a horizontally arranged frame body 1 and a first side frame 2 and a second side frame 3 vertically arranged on both sides of the frame body 1. The frame body 1, the first side frame 2 and the second side frame 3 as a whole form an H-shaped structure. The frame body 1, the first side frame 2 and the second side frame 3 are provided with tube holes of various specifications, which can adapt to test tubes and centrifuge tubes of various specifications.

[0020] In a preferred embodiment, the frame 1 is provided with multiple rows of first tube holes 101 and second tube holes 102 with different apertures. In this embodiment, the first tube holes 101 and the second tube holes 102 are staggered in the same row, which can reduce the space occupied by the frame 1, so that the frame 1 can be provided with multiple tube holes of different specifications. The first side frame 2 and the second side frame 3 are respectively provided with multiple rows of third tube holes 201 and fourth tube holes 301 with different apertures. A magnetic system 4 is provided below the frame 1, and the third tube holes 201 and the fourth tube holes 301 are both arranged in the direction of the magnetic system 4, so that the centrifuge tube can be normally separated by magnetic beads.

[0021] The first side frame 2 and the second side frame 3 are respectively provided with four first suction cups 202 and four second suction cups 302 perpendicular to the horizontal plane. When the first tube hole 101 and the second tube hole 102 on the upper part of the frame body 1 are used, the first suction cup 202 and the four second suction cups 302 are suspended and not used. When the third tube hole 201 is used, the first side frame 2 faces upward, the second side frame 3 faces downward, and the second suction cups 302 are fixed to the experimental table. When the fourth tube hole 301 is used, the second side frame 3 faces upward, the first side frame 2 faces downward, and the first suction cup 202 is fixed to the experimental table.

[0022] like Figure 1 and Figure 3 As shown, in a preferred embodiment, an adjusting component 5 for adjusting a row of first tube holes 101 is provided on the upper surface of the frame 1. Of course, there may be multiple adjusting components 5 to adjust multiple rows of first tube holes 101. The adjusting component 5 is connected to a clamping member 6 located above the first tube holes 101. The adjusting component 5 adjusts the clamping member 6 to adapt to centrifuge tubes with different apertures. Of course, when the clamping member 6 is located above the first tube hole 101, the clamping member 6 can only clamp centrifuge tubes with apertures not larger than the first tube hole 101.

[0023] The adjusting component 5 includes two first fixing plates 501 fixed to the upper end of the second side frame 3, an adjusting screw 503 is rotatably connected between the two first fixing plates 501, and two second fixing plates 502 fixed to the upper end of the first side frame 2, a sliding rod 504 is fixedly connected between the two second fixing plates 502. The first transverse plate 506 and the second transverse plate 507 are respectively threadedly connected to the threads at both ends of the adjusting screw 503, and the ends of the first transverse plate 506 and the second transverse plate 507 away from the adjusting screw 503 are slidably connected to the sliding rod 504, and the first transverse plate 506 and the second transverse plate 507 are connected to the clamping member 6. A handle 505 is provided at one end of the adjusting screw 503. When the handle 505 is screwed, the first transverse plate 506 and the second transverse plate 507 are moved closer to or farther away from each other under the action of the adjusting screw 503, so as to adjust the clamping member 6 to adapt to centrifuge tubes of various specifications.

[0024] like Figure 1 and Figure 4As shown, in a preferred embodiment, the clamping member 6 includes a second half ring 602 fixedly connected to the first transverse plate 506 and a first half ring 601 fixedly connected to the second transverse plate 507 and corresponding to the second half ring 602. The first half ring 601 and the second half ring 602 can be two half rings arranged opposite to each other, and the first half ring 601 and the second half ring 602 can be made of elastic material, thereby reducing the rigid clamping of the centrifuge tube and reducing its damage. The first half ring 601 is provided with a groove portion 603, and the second half ring 602 is provided with a protrusion 604 matching the groove portion 603. When the first transverse plate 506 and the second transverse plate 507 are close to each other, the first half ring 601 and the second half ring 602 are close to each other, and the protrusion 604 can be inserted into the groove portion 603, thereby improving the clamping stability of the centrifuge tube.

[0025] The preferred specific implementation modes and embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation modes and embodiments, and various changes or equivalent substitutions can be made within the knowledge scope of those skilled in the art without departing from the concept of the utility model. Therefore, the utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the utility model.

Claims

1. A multi-purpose magnetic frame, characterized in that: The invention comprises a horizontally arranged frame body (1) provided with a plurality of rows of first tube holes (101) and second tube holes (102) with different apertures, and a vertically arranged first side frame (2) and a second side frame (3) located on both sides of the frame body (1); a magnetic system (4) is arranged below the frame body (1); the first side frame (2) and the second side frame (3) are respectively provided with a plurality of rows of third tube holes (201) and fourth tube holes (301) with different apertures facing the magnetic system (4); the upper surface of the frame body (1) is provided with at least one adjusting component (5) for adjusting a row of first tube holes (101); the adjusting component (5) is connected to a clamping member (6) located above the first tube hole (101); the adjusting component (5) adjusts the clamping member (6) to adapt to centrifuge tubes with different apertures.

2. The multi-purpose magnetic frame according to claim 1, characterized in that: The adjusting component (5) comprises two first fixed plates (501) fixed to the upper end of the second side frame (3) and rotatably connected to the adjusting screw (503), and two second fixed plates (502) fixed to the upper end of the first side frame (2) and fixedly connected to the sliding rod (504), the threads at both ends of the adjusting screw (503) being respectively threadedly connected to a first transverse plate (506) and a second transverse plate (507) being slidably connected to the sliding rod (504), and the first transverse plate (506) and the second transverse plate (507) being connected to the clamping member (6).

3. The multi-purpose magnetic frame according to claim 2, characterized in that: The clamping member (6) comprises a second half ring (602) fixedly connected to the first transverse plate (506) and a first half ring (601) fixedly connected to the second transverse plate (507) and corresponding to the second half ring (602).

4. The multi-purpose magnetic frame according to claim 3, characterized in that: The first half ring (601) is provided with a groove portion (603), and the second half ring (602) is provided with a protrusion portion (604) matching the groove portion (603).

5. The multi-purpose magnetic frame according to claim 1, characterized in that: The first side frame (2) and the second side frame (3) are respectively provided with a plurality of first suction cups (202) and second suction cups (302) perpendicular to a horizontal plane.

6. The multi-purpose magnetic frame according to claim 1, characterized in that: The first tube holes (101) and the second tube holes (102) are arranged alternately in the same row.

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