Transfer pipette capable of preventing liquid leakage

A technology for pipettes and drips, which is applied in the field of pipettes, can solve the problems of liquid dripping and increase the difficulty of pipette cleaning, and achieve the effect of easy cleaning

CN105057014AInactive Publication Date: 2015-11-18罗丽秀

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: 罗丽秀
Publication Date: 2015-11-18
Estimated Expiration: Not applicable · inactive patent

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Abstract

The invention discloses a transfer pipette capable of preventing liquid leakage. The transfer pipette comprises an air bag and a cylindrical sucker. The outer diameter end of the upper portion of the cylindrical sucker is movably sleeved with the air bag. A conical suction head of an integrated structure is arranged at the lower end of the cylindrical sucker. The transfer pipette is mainly characterized in that a circular waterproof and dustproof breathable film is arranged at the top end of the cylindrical sucker, and the circular waterproof and dustproof breathable film and the top end of the cylindrical sucker are adhesively fixed through high adhesive; a transparent cylinder is arranged at the lower portion inside the cylindrical sucker, the outer diameter end of the cylinder makes tight contact with the inner diameter of the cylindrical sucker, and capillary tubes are evenly distributed in the axial direction of the cylinder. According to the transfer pipette, air between the air bag and the cylindrical sucker is kept smooth, meanwhile, the phenomenon that liquid is sucked into the air bag in the liquid suction process is avoided, and the transfer pipette is convenient to clean; liquid will not be leaked from an opening in the bottom of the conical suction head when transferred from one container to another container.

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Description

technical field

[0001] The invention relates to the technical field of chemical instruments, in particular to a pipette capable of preventing liquid from dripping. Background technique

[0002] A pipette is an instrument used in chemical experiments to move liquids from one container to another. The pipette usually includes an air bag and a transparent cylindrical suction pipe, the air bag is movably sleeved on the outer diameter end of the upper part of the cylindrical suction pipe, and the lower end of the cylindrical suction pipe is provided with an integrated conical suction head. In the process of drawing liquid, it is very easy to suck the liquid into the air bag, which increases the difficulty of cleaning the pipette; in the process of moving the liquid from one container to another, the liquid is easy to drip from the opening at the bottom of the tapered suction head. Contents of the invention

[0003] The object of the present invention is to provide a pipette th...

Claims

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