A quantitative liquid taker with stirring function

Abstract

The invention discloses a quantitative pipette with a stirring function. The quantitative pipette with the stirring function comprises a liquid storage bottle, a spiral pipe, a spiral piston, a liquidguide rod, a spring and a pressing rod. A bottleneck of the liquid storage bottle is provided with a bottle cap, and a hole is formed in the center position of the bottle cap. The inner wall of the spiral pipe is provided with a spiral groove, the outer wall of the spiral pipe is provided with a plurality of stirring blades, the closed end of the spiral pipe is provided with a liquid inlet hole,and an upper port of the liquid inlet hole is provided with a first one-way valve. The spiral piston comprises a one-way closing bearing, the peripheral face of an outer base ring of the one-way closing bearing is provided with a spiral protrusion, and an inner cavity of an inner base ring of the one-way closing bearing is provided with a second one-way valve. The liquid guide rod is fixedly connected with the spiral piston. The spring is arranged in the spiral pipe and arranged on the liquid guide rod in a sleeving manner. The pressing rod is arranged at the upper end of the liquid guide rod.The quantitative pipette can achieve quantitative pipetting, quantification is adjustable, the quantitative pipette can stir liquid while carrying out pipetting, and pipetted liquid is uniform.

Description

technical field [0001] The invention belongs to the technical field of experimental supplies, in particular to a quantitative liquid taker with a stirring function. Background technique [0002] Most of the medicines used in chemical experiments are in liquid state. Most of the liquid used in the experiment is a certain amount of liquid poured from the reagent bottle. In order to get the required amount of liquid, it is often poured with a graduated bottle, or used Take the liquid with a graduated straw, and pour the liquid into a measuring cylinder or cup before using it. The problems of these methods are: ①There are too many links in the process of measuring the liquid, which is easy to cause secondary pollution; ②The amount of poured liquid needs to be poured while observing, and it cannot be in place at one time. The process is cumbersome and difficult to accurately grasp. ; ③ Some liquids are not uniform due to long storage time, and need to be stirred before taking th...

AI Technical Summary

Problems solved by technology

The problems of these methods are: ①There are too many links in the process of measuring the liquid, which is easy to cause secondary pollution; ②The amount of poured liquid needs to be poured while observing, and it cannot be in place at one time. The process is cumbersome and difficult to accurately grasp. ;③ Some liquids are not uniform due to long storage time, and need to be stirred before taking the liquid, which makes the liquid taking process more cumbersome

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