Rotary oscillation mechanism

Abstract

The invention relates to the technical field of biological instruments, in particular to a rotary oscillation mechanism which comprises a rotary component and a driving component. The rotary component comprises a rotary table, an eccentric shaft and a rotary device which is in a shape of a Chinese character 'jing' and can limit the rotary table to horizontally shake back and forth under the driven of the driving component; 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 component; and the driving component drives the eccentric shaft, so that the rotary table connected to the eccentric shaft drives the rotary device to realize rotary oscillation action. By using the rotary oscillation mechanism, the problems that a motor and an oscillation plate of an oscillation device are connected through a rubber column, stress exists at the rubber column connecting part, and the stop position of the oscillation plate each time is not fixed due to the existence of the stress, a structural piece matched with the oscillation plate cannot work accurately, and then equipment failures are caused; and the oscillation plate can further move in a vertical direction by using the rubber column, and oscillation of a sample is not facilitated in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of biological instruments, in particular to a cyclotron oscillation mechanism. Background technique [0002] Nucleic acid extractor is an instrument that uses supporting nucleic acid extraction reagents to automatically complete the extraction of sample nucleic acid. Nucleic acid extractors 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 the packaged supporting reagents to automatically complete the extraction and purification process. Large-scale automatic liquid workstations are suitable for extracting thousands of samples of the same type at a time because of high equipment costs and high operating costs, so they are rarely used; while small automated instruments are easy to operate because of low equipment and operating costs. It has a wide range of applications in various fields s...

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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