CN219099187U

CN219099187U - Magnetic rack for nucleic acid extraction

Info

Publication number: CN219099187U
Application number: CN202222941269.2U
Authority: CN
Inventors: 吴柏旭; 朱梦娇; 倪显彬
Original assignee: Luoxi Life Technology Hangzhou Co ltd
Current assignee: Luoxi Life Technology Hangzhou Co ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-05-30
Anticipated expiration: 2032-11-04

Abstract

The utility model discloses a magnetic rack for nucleic acid extraction, which comprises a bracket, wherein a cover plate is arranged above the bracket, a placing hole is formed in the cover plate, a fixing device is arranged below the placing hole, the fixing device comprises a clamping piece and a connecting piece, the upper end of the connecting piece is fixedly connected with the cover plate, a circular opening is formed in the lower end of the connecting piece, a clamping piece is rotationally clamped and connected with the circular opening, the clamping piece comprises a fixing ring, a rubber ring pad is arranged in the fixing ring, an adjustable jacking column is arranged on the fixing ring and is connected onto the fixing ring through bolts.

Description

Magnetic rack for nucleic acid extraction

Technical Field

The utility model relates to the technical field of magnetic frames, in particular to a magnetic frame for nucleic acid extraction.

Background

Magnetic force frames are generally used in the fields of molecular biology and medical diagnostics. The method is matched with a nucleic acid extraction reagent and nano magnetic beads for use, and is used for preprocessing samples of different types such as tissues, cell cultures and the like, extracting nucleic acid and purifying nucleic acid. The magnetic force frame is provided with the magnetic bars which are attractive in appearance and reasonably distributed, can provide a high-strength magnetic field when in use, has strong adsorption capacity for smaller particle sizes, and has the advantages of extremely low manufacturing cost, extremely low maintenance and management cost, no occupation of space and electric energy compared with sample processing workstations, automatic extraction instruments and the like.

The hole site for fixing the centrifuge tube of the magnetic rack on the market at present is usually a single open hole type, and only one centrifuge tube with fixed specification can be placed. If place not unidimensional centrifuging tube, in the use, centrifuging tube stew link after need pour out the supernatant when extremely easily lead to the centrifuging tube landing on the magnetic force frame to cause test table surface to pollute. If the sample is processed by using magnetic frames with fixed hole sites of different sizes, the unnecessary cost is increased for nucleic acid extraction and purification.

Disclosure of Invention

The utility model aims to solve the problems that sample treatment cannot be carried out on centrifuge tubes with different specifications in the prior art, and the centrifuge tubes slide down easily to cause pollution of a test table surface when supernatant is poured out, and provides a magnetic rack for nucleic acid extraction, which adopts a special fixing structure to enable centrifuge tubes with different sizes to be fixed, and the centrifuge tubes can be well fixed when the supernatant is poured, so that the situation of sliding does not occur.

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

the utility model relates to a magnetic rack for nucleic acid extraction, which comprises a bracket, the support top is equipped with the apron, be equipped with on the apron and place the hole, place the hole below and be equipped with fixing device, fixing device includes pincers piece and connecting piece, the connecting piece upper end with apron fixed connection, the connecting piece lower extreme is equipped with circular trompil, the pincer with circular trompil rotatory card is put and is connected, the pincer includes solid fixed ring, guy is equipped with the rubber circle pad inside, guy be equipped with adjustable jack-post on the fixed ring, adjustable jack-post bolted connection in gu fixed ring is last, the utility model adopts fixing device of special structure to fix the centrifuging tube, can guarantee that the centrifuging tube is fixed on gu fixed ring and can not the landing, and the vertical downward holding stable of influence of gravity has avoided removing the centrifuging tube that the magnetic rack leads to drop the problem, and adopting this structure can also only need hold the lower part with the hand when empting the supernatant rotatory can, has avoided the landing of centrifuging tube when pouring the supernatant, is equipped with the rubber circle pad and prevents that the rigidity from appearing damaging to the centrifuging tube, adopts adjustable size to make the fixed requirement not reduce the centrifuging tube.

Preferably, the front end of the adjustable jack post is rotatably clamped with a gasket which is crescent, and the gasket adopts a soft rubber structure. The gasket can always keep a required angle in the rotating process by adopting a rotating clamping mode, and the centrifugal tube can be better supported, so that the centrifugal tube is stably fixed.

Preferably, the edge of the placing hole is provided with an inclined groove, the width of the inclined groove is the same as the diameter of the placing hole, and the inclined groove is arranged in the utility model, so that enough space can be reserved for placing the centrifuge tube conveniently when the supernatant is poured, and collision between the centrifuge tube and the cover plate when the centrifuge tube is inclined is avoided.

Preferably, the combination structure of the placing hole and the inclined groove is U-shaped, and the inclined groove is arranged at the edge of the cover plate.

Preferably, a bottom plate is arranged below the support, and the bottom plate is provided with the magnetic rod placing groove.

Therefore, the utility model has the following advantages:

1. according to the utility model, the centrifugal tube is fixed by adopting the fixing device with a special structure, so that the centrifugal tube is ensured to be fixed on the fixing ring and not to slide down, and is kept stable vertically downwards under the influence of gravity, the problem that the centrifugal tube falls down due to the movement of the magnetic frame is avoided, the lower part of the centrifugal tube is only required to be held by hands to rotate along the fixing device when the supernatant is poured, the sliding down of the centrifugal tube when the supernatant is poured is avoided, the rubber ring pad is arranged to prevent the centrifugal tube from being damaged rigidly, and the adjustable jacking column is adopted to ensure that the centrifugal tube has no fixing requirement on the size, so that the cost is reduced.

2. The utility model is provided with the inclined groove, so that enough space can be reserved for placing the centrifuge tube conveniently when the supernatant is poured, and collision between the centrifuge tube and the cover plate when the centrifuge tube is inclined is avoided.

3. The utility model is provided with the magnetic rod placing groove, so that a tester does not need to hold the magnetic rod, and the labor cost is reduced.

Drawings

FIG. 1 is a schematic elevational view of an embodiment;

FIG. 2 is a schematic structural view of a cover plate;

FIG. 3 is a schematic elevational view of a fixture;

FIG. 4 is a schematic top view of the fixture;

wherein, apron 1, fixing device 2, connecting piece 21, clamp chuck 22, clamp rod 23, solid fixed ring 24, adjustable jack-prop 25, gasket 26, support 3, bottom plate 4, bar magnet put groove 5.

Detailed Description

For a more detailed description of the technical features of the utility model, the technical solutions of the utility model are described below with reference to the accompanying drawings and examples:

referring to fig. 1 and 2, the present embodiment is a magnetic rack for nucleic acid extraction, which includes a bracket 3, a cover plate 1 is disposed above the bracket 3, a placement hole is disposed on the cover plate 1, the placement hole is used for placing a centrifuge tube, a fixing device 2 is disposed below the placement hole, and the fixing device 2 is used for fixing the centrifuge tube in detection. Placing hole edge is equipped with the inclined groove, and inclined groove width is the same with placing hole diameter, and this embodiment is equipped with the inclined groove, conveniently can reserve enough space and place for the centrifuging tube when empting the supernatant, centrifuging tube and apron 1 collision when avoiding the inclined centrifuging tube. Placing hole and slope groove integrated configuration and being the U type, the apron 1 border position is located to the slope groove, and this embodiment is outwards placed the slope groove opening, outwards inclines the centrifuging tube when the tester needs the slope centrifuging tube, avoids colliding other centrifuging tubes, causes the collision damage between the centrifuging tube. The bottom plate 4 is arranged below the support 3, the bottom plate 4 is provided with the magnetic rod placing groove 5, and the magnetic rod placing groove 5 is arranged in the embodiment, so that a tester does not need to hold the magnetic rod, and labor cost is reduced.

Referring to fig. 3 and 4, the fixing device 2 includes a clamping member and a connecting member 21, the upper end of the connecting member 21 is fixedly connected with the cover plate 1, the lower end of the connecting member 21 is provided with a circular opening, and the clamping member is rotationally clamped and connected with the circular opening. The clamp piece includes clamp head 22, clamp rod 23 and solid fixed ring 24, clamp head 22 passes connecting piece 21, guarantee that clamp head and connecting piece 21's stable in structure can not drop, clamp rod 23 is used for being connected with solid fixed ring 24, gu fixed ring 24 is inside to be equipped with the rubber circle pad, gu be equipped with adjustable jack-prop 25 on the fixed ring 24, adjustable jack-prop 25 bolted connection is on gu fixed ring 24, this embodiment adopts fixing device 2 of special structure to fix the centrifuging tube, can guarantee that the centrifuging tube is fixed and can not the landing on the solid fixed ring, when receiving gravity to influence vertical downward holding stable, the problem that the centrifuging tube that the removal magnetic force frame led to drops has been avoided, adopt this structure can also only need hold the centrifuging tube lower part rotatory along fixing device 2 when empting the supernatant, the landing when having avoided pouring the supernatant, be equipped with the rubber circle pad and prevent to appear rigid damage, adopt adjustable jack-prop 25 to make the size of centrifuging tube not have fixed requirement, the cost is reduced. The gasket 26 has been put to adjustable jack-prop 25 front end rotatory card, gasket 26 is crescent, gasket 26 adopts soft rubber structure, and this embodiment adopts soft rubber gasket 26, prevents that the rigidity collision from appearing in the handling from causing the centrifuging tube to damage. The gasket 26 can always keep a required angle in the rotating process by adopting a rotating clamping mode, and the centrifugal tube can be better supported, so that the centrifugal tube is stably fixed.

The above is merely a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions that do not undergo the inventive work should be covered in the scope of the present utility model.

Claims

1. The utility model provides a magnetic frame for nucleic acid extraction, characterized by, includes the support, the support top is equipped with the apron, be equipped with on the apron and place the hole, it is equipped with fixing device to place the hole below, fixing device includes clamping piece and connecting piece, the connecting piece upper end with apron fixed connection, the connecting piece lower extreme is equipped with circular trompil, clamping piece with circular trompil rotation clamping is connected, clamping piece includes solid fixed ring, gu fixed ring inside is equipped with the rubber circle pad, gu be equipped with adjustable jack-post on the fixed ring, adjustable jack-post bolted connection in gu fixed ring is last.

2. The magnetic rack for extracting nucleic acid according to claim 1, wherein a gasket is rotatably clamped at the front end of the adjustable jack-prop, the gasket is crescent-shaped, and the gasket adopts a soft rubber structure.

3. The magnetic rack for nucleic acid isolation according to claim 1, wherein the placement hole has an inclined groove at an edge thereof, and the inclined groove has the same width as the placement hole.

4. The magnetic rack for nucleic acid isolation according to claim 3, wherein the combination structure of the placement hole and the inclined groove is U-shaped, and the inclined groove is provided at the edge of the cover plate.

5. The magnetic rack for nucleic acid extraction according to claim 1, wherein a bottom plate is provided below the rack, and the bottom plate is provided with a magnetic bar placement groove.