CN220450158U - Magnetic rack - Google Patents

Abstract

The utility model discloses a magnetic stand, which includes a bottom plate, a tilt adjustment device, a magnetic strip and a positioning indentation. The bottom plate is provided with magnetic strips through a tilt adjustment device, and the bottom plate is provided with 6 magnetic strips; Positioning indentations are also provided, and the positioning indents are located between the magnetic strips. The innovation point of this utility model is to design a universal magnetic stand for biological laboratories, which can simultaneously meet the use requirements of a single 0.2ml, 0.5ml, 1.5ml EP tube, eight consecutive tubes and a 96-well plate.

Description

a magnetic stand

Technical field

The utility model belongs to the field of biological experimental equipment, and particularly relates to a magnetic stand.

Background technique

A magnetic stand is a device used to separate magnetic microspheres from liquids. Usually, a magnet is provided on the magnetic stand, and the magnetic microspheres are made of iron or other similar magnetic metal materials. In nucleic acid separation, biomagnetic bead separation is often used, that is, nucleic acids are adsorbed on biochemically modified magnetic beads, and then a magnetic stand is used to adsorb and precipitate the magnetic beads to separate nucleic acids from other substances. Currently, single 0.2ml, 0.5ml, 1.5ml EP tubes, eight-row tubes and 96-well plates use different magnetic racks. This will lead to many types of magnetic racks. If multiple types are used during experiments The magnetic stand will increase the complexity of the experimental operation, so a universal magnetic stand needs to be designed for this situation.

Utility model content

In view of the above-mentioned shortcomings of the prior art, the utility model invented a magnetic stand.

In order to achieve the above purpose, the present utility model adopts the following technical solutions:

A magnetic stand includes a bottom plate, a tilt adjustment device, a magnetic strip and a positioning indentation. The bottom plate is provided with a magnetic strip through a tilt adjustment device, and the said bottom plate is provided with 6 magnetic strips; the said bottom plate is also provided with a positioning recess. mark, the positioning indentation is located between the magnetic strip and the magnetic strip.

The innovation point of this utility model is to design a universal magnetic stand for biological laboratories, which can simultaneously meet the use requirements of a single 0.2ml, 0.5ml, 1.5ml EP tube, eight consecutive tubes and a 96-well plate.

Further, the tilt adjustment device includes a base, a rotating shaft, a movable part and a fixed shaft. The two bases stand opposite each other and are fixedly installed on the bottom plate; the lower part of the movable part is set on the base through the rotating shaft. The upper parts of the two movable parts are movable with magnetic strips through fixed shafts; the function of the tilt adjustment device is to adjust the two adjacent magnetic strips closer together, and a single EP tube can be clamped and placed between the magnetic strips. Or eight rows of pipes.

Further, the rotating card shaft is provided with convex strips, and the base is provided with grooves. The convex strips and the grooves are used in conjunction to realize the rotational positioning of the movable part, that is, the movable part can adjust its tilt under the action of external force, and there is no external force. It can remain tilted or upright.

Furthermore, there are 6 rows of positioning indentations, and each row has 8 dents, which meets the placement requirements of eight consecutive rows of pipes.

Furthermore, the shape of the positioning indentation is set according to the bottom shape of different types of EP tubes to ensure the stability of the bottom after placement of 0.2ml, 0.5ml, and 1.5ml EP tubes.

The advantage of this utility model is that: the 6 magnetic convex strips on the magnetic stand provided by the utility model can be used for 96-well plates, and can be used for clamping and placement after adjusting the distance between two adjacent magnetic strips through the tilt adjustment device. A single EP pipe or eight consecutive rows of pipes of different specifications on the positioning indentation meet the requirements for the use of different types of EP pipes or plates, and the change in color of the liquid in the pipe can be clearly observed during use.

Description of drawings

Figure 1 is a perspective view of a magnetic stand of the utility model;

Figure 2 is a second perspective view of a magnetic stand of the utility model;

Figure 3 is a top view of a magnetic stand of the utility model;

Figure 4 is a front view of a magnetic stand of the utility model;

Figure 5 is an exploded perspective view of the tilt adjustment device in the magnetic frame of the present invention.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings:

In the description of the present utility model, it should be noted that the orientations or positional relationships indicated by "up", "down", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, or are based on the practical The orientation or positional relationship in which new products are commonly placed during use is only to facilitate the description of the present invention and simplify the description, and does not indicate or imply that the device or component referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it cannot be understood as a limitation of the present invention.

As shown in Figures 1-4, a magnetic stand includes a bottom plate 1, a tilt adjustment device 2, a magnetic strip 3 and a positioning indentation 4. The bottom plate 1 is provided with a magnetic strip 3 through the tilt adjustment device 2. There are 6 strips 3. The setting of 6 magnetic strips 3 can meet the use of 96-well plates. When using, you only need to insert the 96-well plate on the magnetic strips 3. The tilt adjustment device 2 is used to adjust the distance between two adjacent magnetic strips 3. By adjusting the distance between the magnetic strips 3, a single EP pipe or eight consecutive rows of pipes placed on the positioning indentation 4 can be clamped. The adjustability of the spacing can meet the use of EP pipes of different specifications. The bottom plate 1 is also provided with a positioning indentation 4, which is located between the magnetic strip 3 and the magnetic stripe 3; the function of the positioning indentation 4 is to enable alignment when placing a single EP pipe or eight consecutive rows of pipes. It provides stable positioning of the bottom, preventing it from sliding, tilting or tipping over. The shape of the positioning indentation 4 is set according to the bottom shape of a single EP pipe of different models. The positioning dents 4 are provided in 6 rows, and each row is provided with 8 dents. The shapes of the positioning dents 4 in each row are the same, and the shapes of the positioning dents 4 are different between rows.

As shown in Figure 5, the tilt adjustment device 2 includes a base 21, a rotating card shaft 22, a movable part 23, a fixed shaft 24, a protrusion 25 and a groove 26. The two bases 21 stand opposite each other and are fixedly mounted on the base plate 1 ; A rotating card shaft 22 is fixedly provided at the lower part of the movable member 23, and the movable member 23 is arranged on the base 21 through the rotating card shaft 22; in order to realize that the movable member 23 can maintain the rotated state after rotation, the rotating card shaft 22 is The convex strips 25 are arranged on the surface of the rotating clamping shaft 22 in a dense circular array with the axis center of the rotating clamping shaft 22 as the center. The base 21 is provided with a groove 26, and the convex strips 25 are connected with the concave grooves 26 . The groove 26 is used in conjunction to achieve the rotational positioning of the movable part 23, that is, after the movable part 23 is rotated by an external force, it will remain in its original state without external force. A magnetic strip 3 is movably provided on the upper part of the two movable parts 23 through a fixed shaft 24; the left and right ends of the top of the magnetic strip 3 are movably connected with the fixed shaft 24 (the left and right ends of the top of the magnetic strip are provided with spaces, The fixed shaft is inserted into the hole), and the movable setting of the magnetic strip 3 can ensure that the movable part 23 can maintain a vertical state no matter how the tilted magnetic strip 3 rotates, thus increasing the contact area with the EP tube. The height of the magnetic strip 3 should be smaller than the height of the movable member 23 in order to prevent the bottom of the magnetic strip 3 from colliding with the base plate 1 due to the movable member 23 being tilted, causing the magnetic strip 3 to be in a vertical state.

Although the specific embodiments of the present utility model have been described in detail above, it should be noted that we can make various changes and modifications to the above embodiments without departing from the spirit of the present utility model and the appended the scope recorded in the claims.

Claims (5)

1. The magnetic rack is characterized by comprising a bottom plate (1), an inclination adjusting device (2), a magnetic strip (3) and positioning dents (4), wherein the bottom plate (1) is provided with the magnetic strip (3) through the inclination adjusting device (2), and the magnetic strip (3) is provided with 6 strips; the bottom plate (1) is also provided with a positioning dent (4), and the positioning dent (4) is positioned between the magnetic stripe (3) and the magnetic stripe (3).

2. A magnetic stand according to claim 1, characterized in that the tilt adjusting device (2) comprises a base (21), a rotating clamping shaft (22), a movable member (23) and a fixed shaft (24), and 2 of the bases (21) are oppositely and fixedly arranged on the base plate (1); the lower parts of the movable pieces (23) are arranged on the base (21) through rotating clamping shafts (22), and the magnetic strips (3) are movably arranged on the upper parts of 2 movable pieces (23) through fixing shafts (24).

3. A magnetic stand according to claim 2, characterized in that the rotary clamping shaft (22) is provided with a protruding strip (25), the base (21) is provided with a groove (26), and the protruding strip (25) cooperates with the groove (26) to realize the rotary positioning of the movable member (23).

4. A magnetic rack according to claim 3, characterized in that the positioning indentations (4) are provided in 6 rows of 8 each.

5. A magnetic rack according to claim 4, characterized in that the shape of the positioning indentations (4) is set according to the bottom shape of EP tubes of different types.