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Suction device for pipette

A technology for suction devices and pipettes, applied in measuring tubes/pipettes, laboratory containers, chemical instruments and methods, etc., can solve problems such as inconvenient, overflowing, sucking back, etc., and achieve simple structure, Increased stability and convenient quantitative measurement

Inactive Publication Date: 2019-07-02
张笑多
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When taking liquid repeatedly, the above actions have to be repeated again and again, which is very inconvenient
In addition, in order to prevent sucking back, the existing pipettes are usually stuffed with cotton at the end of the pipette. However, if the cotton is used as the plug, sucking back, overflow, and blockage will still occur during use. And other issues

Method used

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  • Suction device for pipette
  • Suction device for pipette

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Experimental program
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Embodiment Construction

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, and the mode of the present invention includes but not limited to the following embodiments.

[0017] The purpose of this embodiment is to provide a suction device for pipettes, such as figure 1 As shown, the suction device includes a snap-in plug, a connecting rubber sleeve 1, an air hose 2 and an ear wash ball 3; the snap-in plug includes a snap-in tube 4, a screen 5 arranged at the bottom of the snap-in tube, and The filter element 6 on the net, and the ring-shaped protruding bracket 7 arranged around the outer wall of the clamping tube; the connecting rubber sleeve 1 is umbrella-shaped, the edge of the connecting rubber sleeve is clamped with the upper part of the clamping tube 4, and the middle part of the connecting rubber sleeve is connected to the gas transmission soft One end of the tube 2 is connected, and the other end of the gas delivery hose is...

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Abstract

The invention discloses a suction device for a pipette. The suction device comprises a clamping plug, a connecting rubber sleeve, a gas delivery hose and an ear washing ball; the clamping plug comprises a clamping connection pipe, a screen arranged at the bottom of the clamping connection pipe, a filter element arranged on the screen and an annular protruding support arranged around the outer wallof the clamping connection pipe; the connecting rubber sleeve is in an umbrella shape, wherein the edge of the connecting rubber sleeve is clamped with the upper part of the clamping connection pipe,the middle of the connecting rubber sleeve is connected with one end of the gas delivery hose, and the other end of the gas delivery hose is connected with the ear washing ball, so that the ear washing ball communicates with the clamping connection pipe; a through hole is formed in the clamping pipe between the annular protruding support and the connecting rubber sleeve; the outer edge of the annular protruding support is provided with a circle of annular adhesive tape; the outer edge of the annular adhesive tape is provided with a contraction band; and the through hole is located above the filter element. The suction device is simple in structure, reasonable in design, long in service life and wide in adaptability and is capable of preventing reverse suction.

Description

technical field [0001] The invention relates to a suction device for a pipette. Background technique [0002] A pipette is a more accurate device for measuring liquids. When using a pipette to pipette liquid, use the ear wash ball to block the upper end of the pipette. After absorbing the liquid, take off the ear wash ball, block the upper end of the pipette with your finger, rub your finger to adjust the liquid level high. When repeatedly taking liquid, the above action will be repeated again and again, which is very inconvenient. In addition, in order to prevent sucking back, the existing pipettes are usually stuffed with cotton at the end of the pipette. However, if the cotton is used as the plug, sucking back, overflow, and blockage will still occur during use. And other issues. Contents of the invention [0003] The object of the present invention is to solve the above technical problems and provide a suction device for pipettes, which has a simple structure, reas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/02
CPCB01L3/0213
Inventor 张笑多
Owner 张笑多
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