pcr tube rack fixed cooling plate

Abstract

The invention relates to a fixed cooling plate for a PCR tube frame, which includes a thermal insulation cooling flat plate, a left pressing block, a right pressing block, a rotary positioning assembly, a flat plate fixing assembly and a T-shaped connecting plate, and the left pressing block is fixed on the left side of the upper end surface of the insulating cooling flat plate , the rotation positioning assembly includes an inner fixed shaft, a spring, an outer rotating shaft and a positioning rod with a bending hook. The inner fixing shaft is fixedly connected to the heat preservation and cooling plate through a T-shaped connecting plate, the outer rotating shaft is set outside the inner fixing shaft, and the positioning rod Through the right pressing block, the bending hook of the positioning rod buckles the horizontal rod of the connecting plate, one end of the spring is connected to the tail end of the positioning rod, and the other end is connected to the outer rotating shaft, and the right pressing block is installed on the outer rotating shaft of the rotating positioning assembly And it is located on the right side of the upper end face of the thermal insulation and cooling plate. The invention can fix the PCR tube frame, has a certain effect of pre-cooling and heat preservation, and solves the problems of cross contamination and non-specific amplification caused by the light weight of the PCR tube frame and the temperature easily affected by the environment.

Description

Technical field [0001] The invention relates to a PCR tube rack fixing device, in particular to a PCR tube rack fixing cooling plate. Background technique [0002] The existing PCR tube racks have the following shortcomings: [0003] ⑴The PCR tube rack is made of plastic material, which is light and portable. Because the PCR tube rack is light in material and does not have any fixing measures with the desktop, when adding samples to the PCR tube, the whole page of the PCR tube rack is often dumped or dropped without paying attention to the PCR tube rack, causing the PCR tube rack to be placed on the PCR tube rack. Falling of full-page reagents can easily cause contamination and sample errors. [0004] ⑵ Because the PCR tube rack is not fixed when the specimen is numbered, it is extremely inconvenient to write. [0005] ⑶The PCR tube rack is made of plastic, and the temperature cannot be guaranteed. The PCR tube is easy to change with room temperature, and cold start is required duri...

AI Technical Summary

Problems solved by technology

Because the material of the PCR tube rack is light and there are no fixed measures on the desktop, when adding samples to the PCR tubes, it often happens that the entire PCR tube rack is dumped or dropped without paying attention, resulting in the failure of the PCR tube rack. The entire page of reagents falls, which is easy to cause pollution and wrong samples

[0004] ⑵It is extremely inconvenient to write because the PCR tube rack is not fixed when the specimen is numbered

[0005] (3) The PCR tube rack is made of plastic, so the temperature cannot be guaranteed. The PCR tube is easy to change with the room temperature, and PCR amplification requires a cold start to reduce non-specific amplification. Cool environment, and the existing PCR tube rack cannot meet this requirement

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