A gyratory oscillation mechanism

Abstract

The present invention relates to the technical field of biological instruments, in particular to a rotary oscillation mechanism, comprising a rotary part and a driving part: the rotary part comprises a rotary table and an eccentric shaft, and the rotary table is shaped like a "well" and can limit the rotary table to reciprocate under the driving of the driving part A rotary device with horizontal shaking; the rotary device is movably connected with the rotary table; one end of the eccentric shaft is fixedly connected with the rotary table, and the other end of the eccentric shaft is connected with the driving part; the driving part drives the eccentric shaft to make the rotary The table drives the rotary device to realize the rotary oscillation action. In the prior art, the oscillating device is connected by a rubber column at the connection between the motor and the oscillating plate, and there is stress at the connection of the rubber column, and the existence of the stress will cause the position where the oscillating plate stops each time to be unstable; The matched structural parts cannot work accurately, thus causing equipment failure. The use of rubber columns will also cause vertical displacement of the oscillating plate, which is not conducive to the technical problem of sample oscillation.

Description

technical field [0001] The invention relates to the technical field of biological instruments, in particular to a gyratory oscillation mechanism. Background technique [0002] Nucleic acid extraction instrument is an instrument that automatically completes the extraction of sample nucleic acid by using the matching nucleic acid extraction reagent. Nucleic acid extraction instruments are divided into two categories: one is large-scale automation, generally called automatic liquid workstation; the other is small The automatic nucleic acid extractor uses packaged supporting reagents to automatically complete the extraction and purification process. Because of the high equipment cost and high operating cost, large-scale automatic liquid workstations are suitable for extracting thousands of samples of the same type at a time, so they are rarely used; while small-scale automated instruments have low equipment and operating costs, and are easy to operate. It has a wide range of ap...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a gyratory oscillation mechanism to solve the problem that in the prior art, the oscillation device is usually connected by a rubber column at the connection between the motor and the oscillation plate. There is stress at the connection of the rubber column, which causes the oscillation plate to stop every time The position of the oscillating plate is not fixed, and the structural parts that match it cannot work accurately, and eventually cause equipment failure and the rubber column will also cause the vertical displacement of the oscillating plate, which is not conducive to the technical problem of the oscillating effect of the sample.

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