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Liquid transfer tube

A technology of pipettes and bodies, applied in the field of pipettes, can solve problems such as pipetting failure, pollution, solution loss, etc.

Inactive Publication Date: 2016-06-15
HUNAN CITY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of commonly used pipette operation, pipetting failure is often caused by unskilled operation of the index finger or fatigue, which requires repeated attempts
And when absorbing liquid, the ear washing ball is easy to absorb too much liquid, and the liquid is sucked into the ear washing ball, resulting in loss or pollution of the solution

Method used

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  • Liquid transfer tube
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Examples

Experimental program
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Embodiment Construction

[0018] The specific embodiments of the present invention will be described in detail below, and it should be understood that the embodiments described here are to illustrate and explain the present invention, and are not intended to limit the present invention.

[0019] see figure 1 with figure 2 In one embodiment, the pipette 100 includes a pipette body 110 , a ground cock 120 accommodated in the pipette body 110 , and a breathable filter element 130 disposed in the ground cock 120 . In one embodiment, the pipette 100 further includes a snap clip 140 and a protective cover 150 sleeved on the pipette body 110 .

[0020] Specifically, in one embodiment, the pipette body 110 is roughly in the shape of a hollow tube, and the diameter of the top opening of the pipette body 110 is slightly smaller than the pipe diameter of the pipette body 110. The ball is placed at the opening of the top, and the ear wash ball can be released to suck the liquid into the pipette body 110 after b...

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PUM

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Abstract

A liquid transfer tube comprises a liquid transfer tube body, a ground plug cock and a breathable filter element, wherein scales are arranged on the liquid transfer tube body, a plug cock groove formed in the upper end of the scales of the liquid transfer tube body, the ground plug cock is accommodated in the plug cock groove formed in the liquid transfer tube body and is provided with a through hole communicated with the liquid transfer tube body, and the breathable filter element is arranged in the through hole.The liquid transfer tube conveniently measures liquid volume through the ground plug cock with the filter element and is simple in operation and controllable in speed, and the phenomenon that liquid is sucked into an ear washing ball or is suddenly ejected out when the ear washing ball is overexerted can be avoided.In addition, air can be filtered, and the air in the ear washing ball can be prevented from carrying impurities.The liquid transfer tube is simple in operation and is unlikely to cause liquid transfer failure.

Description

technical field [0001] The invention relates to the field of experimental equipment, in particular to a pipette. Background technique [0002] Pipettes are commonly used instruments in laboratories in the fields of chemistry, chemical engineering, medicine, and environmental protection. At present, the commonly used pipette is a straight glass tube that runs through up and down. When in use, place the pipette in the liquid, and absorb the liquid by discharging the volume in the cavity of the upper end of the ear wash ball to form a pressure difference with the external pressure. When a sufficient amount of After the liquid is removed, remove the ear wash ball, quickly press the mouth of the tube with the index finger of your right hand, and control the pressure of the index finger or turn the pipette slightly to make the liquid in the tube flow out slowly to the concave liquid surface of the solution to the desired scale. Then press the mouth of the pipette tightly, and at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/02
CPCB01L3/0206
Inventor 尹志芳杨姹徐法云刘石泉
Owner HUNAN CITY UNIV
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