Multichannel pipettor

Abstract

The invention relates to the field of pipettor, and in particular, relates to a multichannel pipettor comprising a handheld part, a plurality of pipettes for mounting Tip heads, a driving device and apositioning frame, wherein the driving device is communicated with the pipettes and can drive liquid to enter and exit from the Tip heads, the positioning frame is used for positioning the pipettes and the driving device; the positioning frame and the handheld part are relatively fixed in position; the outer side of the positioning frame is covered with a push-out frame, the end, close to the Tipheads, of the push-out frame can abut against the end faces of the Tip heads, the positioning frame is further provided with a push-out piece for driving the push-out frame to move in the direction close to or away from the Tip heads, and the effects that the Tip heads on the multi-channel pipettor can be disassembled conveniently, and time and labor are saved are achieved.

Description

technical field [0001] The invention relates to the field of pipettes, in particular to a multi-channel pipette. Background technique [0002] At present, the pipette is a measuring instrument used to spit out the liquid at a constant volume. The volume change brought about by the movement of the movable piston in the measuring cylinder is grasped as the volume change of the air, and the liquid with the volume of the volume change of the air is sucked into the container. Connected to the suction nozzle on the lower end of the measuring cylinder and spit it out, the type with one suction nozzle is called a single pipette, and the type with multiple suction nozzles attached at the same time is called a multi-channel pipette or multi-pipette device. [0003] The existing Chinese invention patent with the notification number CN103586095B discloses a multi-channel pipette, which includes a pipetting device and an adjustment device for the distance between pipette guns, and the p...

AI Technical Summary

Problems solved by technology

[0004] The above existing technical solutions have the following defects: in the process of using the existing pipette, it is necessary to enter the tip of the gun (often called Tip) into the liquid to be transferred, and when it is necessary to transfer another liquid , need to replace the gun tip on the pipette, the existing multi-channel pipette has multiple gun tips installed, so people need to remove the multiple gun tips in turn, which will waste a lot of time and manpower

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