Cover opening and closing device applied to unscrewing type container and biological sample collecting method

Abstract

The invention discloses a cover opening and closing device applied to an unscrewing type container and a biological sample collection method, the cover opening and closing device comprises a plurality of chucks, a first power device and a second power device, and an area for accommodating a container cover is formed among the plurality of chucks; the first power device is configured to drive the multiple chucks to get close to or away from each other in a plane; the second power device is configured to drive the multiple chucks to rotate in a plane; and under the driving of the first power device, the diameter switching range of inscribed circles among the plurality of chucks is 2mm to 80mm. The technical scheme provided by the invention is suitable for container covers with different sizes and specifications, and the container covers can be effectively prevented from being polluted.

Description

technical field [0001] The invention relates to the field of bottle cap operating equipment, in particular to a cap opening and closing device applied to a twist-off container and a biological sample collection method. Background technique [0002] For the opening and closing operations of containers with screw caps or rubber stopper caps, the staff mostly unscrew or unplug the caps of the containers with both hands, then inject or suck out the sample, and then tighten or cork the caps of the containers, but This method has the following disadvantages: [0003] a. When hundreds of containers with lids need to be processed, repeated unscrewing and tightening operations can easily cause muscle damage to the staff; [0004] b. It is inconvenient for the staff to operate wearing rubber gloves, which requires more force, and it is easy to cause the rubber gloves to wear out, so the gloves have to be replaced frequently, which is inefficient; and when the rubber gloves are damage...

AI Technical Summary

Problems solved by technology

[0003] a. When hundreds of containers with lids need to be processed, repeated unscrewing and tightening operations can easily cause muscle damage to the staff;

[0004] b. It is inconvenient for the staff to operate wearing rubber gloves, which requires more force, and it is easy to cause the rubber gloves to wear out, so the gloves have to be replaced frequently, which is inefficient; and when the rubber gloves are damaged, some protective functions will be lost, and the Cause the operator to be exposed to biological hazards, greatly increasing the risk of biological safety;

[0005] c. The hands of the staff not only need to open and close the container, but also complete sample suction, sample distribution, processing and other operations. The process is complicated and requires high refinement, so the whole process is very easy to cause the container / cap to fall , aerosol pollution, contact pollution and other experimental accidents; and because the hands are always occupied by opening and closing the cover to varying degrees during the sample experimental processing process, resulting in low efficiency and high failure rate;

[0006] d. For a container with a plug-in cap, when the cap is pulled out, the container will vibrate greatly, which can easily cause the vibration of the internal sample and cause aerosol pollution

[0007] Although capping machines have also appeared on the market, which can automatically open and close bottle caps, they focus on capping for bottle caps of the same specification (with an error of no more than 5mm), although there are also capping machines suitable for various types of caps Capping machine, such as the Chinese patent application with publication number CN 106219466A, but its applicable multi-type bottle caps refer to bottle caps with different capping methods, such as setting two claw heads to handle capping by screw cap and press cap respectively. The size of the bottle caps that can be handled by the claw head is also fixed in advance. For bottle caps of different specifications, the opening and closing fixture (claw head) of the corresponding size must be manually replaced, resulting in inconvenient operation and poor adaptability.

[0008] Therefore, there is a lack of an opening and closing cap device that can be applied to unscrewable containers of different specifications without changing the claw head in the prior art.

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