Cell sorting magnetic frame

By setting mounting slots and connecting slots on the magnetic frame, and using bolts to fix the magnetic strips, combined with threaded rods and sliding plates to adjust the height of the top plate, the problem of magnetic strips easily falling off is solved, achieving stable installation and height adjustment of the magnetic frame, and improving ease of use and separation efficiency.

CN224001422UActive Publication Date: 2026-03-17JUNRUN BIOTECHNOLOGY (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202520180828.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-31
Publication Date
2026-03-17
Estimated Expiration
2035-01-31

AI Technical Summary

Technical Problem

In existing magnetic rack devices, the magnetic strips are prone to falling off during use, causing inconvenience and making it difficult to fix the magnets, which affects the stability and ease of use of the device.

Method used

A magnetic rack for cell sorting was designed. By setting mounting slots and connecting slots on the base and fixing plate, magnetic strips are fixed with bolts, and the height of the top plate is adjusted by threaded rod and sliding plate to accommodate different test tube lengths, so as to achieve stable installation and height adjustment of magnetic strips.

Benefits of technology

This design achieves a secure installation of the magnetic strip, improving the stability and ease of use of the device, facilitating regular maintenance and cleaning of the magnets, and ensuring separation efficiency and sample integrity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of magnetic frames, and discloses a cell sorting magnetic frame which comprises a base, the top of the base is fixedly connected with a fixing plate, the top of the fixing plate is provided with a top plate, the top of the top plate is provided with a placing groove, the top of the base is provided with a positioning groove, and the side face of the fixing plate is provided with an installation groove. Mounting grooves are formed in the side faces of the fixing plates, magnetic strips are mounted in the mounting grooves, connecting grooves are formed in the side faces of the fixing plates, mounting plates are mounted in the connecting grooves, and bolts are in threaded connection with the surfaces of the mounting plates. According to the cell sorting magnetic frame, the base and the fixing plate are used in cooperation, meanwhile, the mounting grooves are utilized, so that magnetic strips are conveniently mounted in the mounting grooves, when the magnetic strips are fixed, the mounting plates can be mounted in the connecting grooves, meanwhile, bolts are rotated, the positions of the mounting plates can be fixed, and therefore the magnetic strips can be fixed.
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Description

Technical Field

[0001] This utility model relates to the field of magnetic scaffold technology, specifically to a cell sorting magnetic scaffold. Background Technology

[0002] With the continuous development of science and technology, magnetic racks, also known as magnetic filters, magnetic rods, or magnetic iron removers, are devices that use the principle of magnetic force to adsorb and remove iron impurities.

[0003] A known magnetic rack device can be found in Chinese Utility Model Patent No. CN220201883U, which discloses a magnetic rack device comprising a base plate, a fixing plate, and a top plate connected sequentially from bottom to top. A placement cavity is provided between the base plate and the top plate. A test tube hole communicating with the placement cavity is vertically opened on the upper surface of the top plate. A magnetic strip is installed on the end face of the fixing plate facing the placement cavity, positioned below and corresponding to the test tube hole. A clamping assembly for radially clamping the test tube wall is provided on the upper surface of the top plate. This application uses the clamping assembly to clamp the test tube wall, thereby limiting the radial position of the test tube. This allows test tubes of different sizes to use the same magnetic rack, improving the structural flexibility of the magnetic rack, reducing the number of times the magnetic rack needs to be switched due to different test tube specifications, and thus reducing experimental costs and the manufacturing cost of the magnetic rack device.

[0004] The aforementioned device uses clamping components to hold the test tube wall, thereby limiting the radial position of the test tube and allowing test tubes of different sizes to use the same magnetic frame. However, the device is not convenient for fixing the magnets, as they are glued to the device. This makes the magnetic strips prone to falling off after prolonged use, requiring them to be re-glued to the device, which is inconvenient to use. Therefore, we have proposed a cell sorting magnetic frame. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cell sorting magnetic frame, which has the advantages of strong practicality, good stability, easy fixation of magnetic strips, and easy adjustment of the height of the magnetic frame. It solves the problem that traditional cell sorting magnetic frames are not convenient for fixing magnets, as they are glued to the device, causing the magnetic strips to easily fall off after long-term use, requiring them to be re-glued to the device, thus making them inconvenient to use.

[0006] This utility model provides the following technical solution: a cell sorting magnetic rack, including a base, a fixing plate fixedly connected to the top of the base, a top plate provided on the top of the fixing plate, a placement groove opened on the top of the top plate, a positioning groove opened on the top of the base, an installation groove opened on the side of the fixing plate, a magnetic strip installed inside the installation groove, a connecting groove opened on the side of the fixing plate, an installation plate installed inside the connecting groove, and bolts threadedly connected to the surface of the installation plate.

[0007] In a preferred embodiment of this utility model, the fixing plate is installed between the base and the top plate, and the placement groove and the positioning groove are on the same straight line.

[0008] As a preferred embodiment of this utility model, the fixing plate has mounting grooves on both sides, and the mounting grooves and the positioning grooves are on the same straight line.

[0009] As a preferred embodiment of this utility model, the connecting groove is formed on the upper and lower surfaces of the inner wall of the mounting groove, and the surface size of the magnetic strip is the same as the internal size of the mounting groove.

[0010] As a preferred technical solution of this utility model, the top of the fixing plate is provided with a slot, a sliding plate is inserted into the slot, and a threaded rod is threadedly connected to the top of the top plate, and the threaded rod is threadedly connected to the threaded groove opened on the top of the fixing plate.

[0011] As a preferred embodiment of this invention, the top of the skateboard is fixedly connected to the bottom of the top plate.

[0012] As a preferred embodiment of this utility model, the internal shape of the positioning groove is arc-shaped, and the internal diameter of the positioning groove near the top of the base is the same as the internal diameter of the placement groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This cell sorting magnetic frame uses a base and a fixing plate in combination. It also uses a mounting slot to facilitate the installation of magnetic strips into the mounting slot. When fixing the magnetic strips, the mounting plate can be installed into the connecting slot. At the same time, rotating the bolts can fix the position of the mounting plate, thereby fixing the magnetic strips.

[0015] 2. This cell sorting magnetic rack uses a combination of a fixed plate and a slot, along with a sliding plate and a threaded rod. When the threaded rod rotates, it can drive the sliding plate and the top plate to rise and fall. This allows the top plate to be adjusted according to the length of the test tube, thus facilitating the use of the test tube. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0019] In the diagram: 1. Base; 2. Fixing plate; 3. Top plate; 4. Placement slot; 5. Positioning slot; 6. Mounting slot; 7. Magnetic strip; 8. Connecting slot; 9. Mounting plate; 10. Bolt; 11. Slot; 12. Slide plate; 13. Threaded rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 The cell sorting magnetic frame includes a base 1, a fixing plate 2 fixedly connected to the top of the base 1, a top plate 3 on the top of the fixing plate 2, a placement groove 4 on the top of the top plate 3, a positioning groove 5 on the top of the base 1, an installation groove 6 on the side of the fixing plate 2, a magnetic strip 7 installed inside the installation groove 6, a connecting groove 8 on the side of the fixing plate 2, an installation plate 9 installed inside the connecting groove 8, and a bolt 10 threadedly connected to the surface of the installation plate 9. The fixing plate 2 is welded to the top of the base 1, so that the installation grooves 6 are provided on both sides of the fixing plate 2. The magnetic strip 7 can be placed inside the installation grooves 6. When fixing the magnetic strip 7, the bolts 10 can be rotated through the connecting grooves 8, thereby fixing the magnetic strip 7 to the installation plate 9. At the same time, the magnetic strip 7 generates a magnetic field. The device can efficiently adsorb and bind target cells with magnetic beads, thereby achieving rapid separation. The separation method of the device is highly efficient and can maintain the integrity and activity of the sample, which provides high-quality samples for subsequent biological research. The placement slot 4 and positioning slot 5 facilitate the placement of test tubes. The base 1 and top plate 3 are made of stainless steel, which has good corrosion resistance and mechanical strength, ensuring the stability and durability of the magnetic rack. In humid or corrosive environments, stainless steel can effectively resist rust and chemical corrosion. In addition, stainless steel has good processing performance and can meet the needs of manufacturing magnetic racks of different shapes and sizes. The magnetic strip 7 is made of neodymium iron boron magnet, which has extremely high magnetic energy product and coercivity and can generate a strong magnetic field, making it very suitable for the adsorption of magnetic beads in cell sorting.

[0022] Please see Figure 3 The top of the fixed plate 2 has a slot 11, and a sliding plate 12 is inserted into the slot 11. The top of the top plate 3 is threadedly connected to a threaded rod 13, and the threaded rod 13 is threaded into a threaded groove on the top of the fixed plate 2. The top of the fixed plate 2 has a slot 11, which is shaped like a U-shape. The sliding plate 12 is slidably connected inside the slot 11, and the top of the sliding plate 12 is welded to the bottom of the top plate 3. The top of the top plate 3 is threadedly connected to the threaded rod 13, so that the height of the sliding plate 12 can be adjusted when the threaded rod 13 is rotated. When the sliding plate 12 moves, the height of the top plate 3 can be adjusted.

[0023] Working principle: During operation, when installing the magnetic strip 7, it can be installed inside the installation slot 6 through the opening. The connecting slots 8 on the upper and lower surfaces of the installation slot 6 facilitate the installation of the mounting plate 9. At the same time, when the bolt 10 is rotated, the mounting plate 9 can fix the magnetic strip 7. The magnetic strip 7 in the magnetic rack adopts an easy-to-disassemble and clean design, which facilitates the experimenter to perform regular maintenance and cleaning work. This helps to ensure the long-term stability and service life of the magnetic rack. When adjusting the height of the top plate 3, the threaded rod 13 can be rotated. When the threaded rod 13 rotates, it can drive the slide plate 12 to rise and fall inside the slot 11. When the slide plate 12 rises, its height can be adjusted according to the height of the test tube. After adjustment, the test tube can be placed into the positioning slot 5 through the placement slot 4.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Cell sorting magnet stand comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a fixed plate (2), the top of the fixed plate (2) is provided with a top plate (3), the top of the top plate (3) is provided with a placing groove (4), the top of the base (1) is provided with a positioning groove (5), the side of the fixed plate (2) is provided with an installation groove (6), the inside of the installation groove (6) is installed with a magnetic stripe (7), the side of the fixed plate (2) is provided with a connecting groove (8), the inside of the connecting groove (8) is installed with an installation plate (9), the surface of the installation plate (9) is screw-connected with a bolt (10), the fixed plate (2) is installed between the base (1) and the top plate (3), the placing groove (4) and the positioning groove (5) are on the same straight line, the two sides of the fixed plate (2) are provided with the installation groove (6), the installation groove (6) and the positioning groove (5) are on the same straight line, the connecting groove (8) is provided on the upper and lower surfaces of the inner wall of the installation groove (6), the surface size of the magnetic stripe (7) is same with the inside size of the installation groove (6), the top of the fixed plate (2) is provided with a slot (11), the inside of the slot (11) is inserted with a sliding plate (12), the top of the top plate (3) is screw-connected with a threaded rod (13), and the threaded rod (13) is screw-connected in the threaded groove provided on the top of the fixed plate (2).

2. The cell sorting magnetostack of claim 1, wherein: The top of the sliding plate (12) is fixedly connected with the bottom of the top plate (3).

3. The cell sorting magnetostack of claim 1, wherein: The inside shape of the positioning groove (5) is arc-shaped, and the inside diameter of the positioning groove (5) close to the top of the base (1) is same with the inside diameter of the placing groove (4).

Citation Information

Patent Citations

  • Magnetic frame device

    CN220201883U