CN209968436U

CN209968436U - Straw for laboratory

Info

Publication number: CN209968436U
Application number: CN201920170403.9U
Authority: CN
Inventors: 于思雨; 房艳; 高俊海
Original assignee: Spectrum Buddhist Nun Tests Group PLC
Current assignee: Spectrum Buddhist Nun Tests Group PLC
Priority date: 2019-01-26
Filing date: 2019-01-26
Publication date: 2020-01-21
Anticipated expiration: 2029-01-26

Abstract

The utility model belongs to the laboratory article field relates to a straw is used in laboratory, and its characteristic includes liquid bag (1), split pull ring (2) and body (3) three, except body (3) liquid outlet (4) outer omniseal, and split pull ring (2) can tear with liquid bag (1) and body (3) and draw the dismantlement to be connected. The disposable plastic straw can absorb and contain a small amount of liquid for absorbing after being disassembled, thereby effectively reducing the waste of reagents, increasing the use efficiency of the disposable plastic straw and simplifying and facilitating the actual operation; meanwhile, the probability of reagent pollution is reduced, and the experimental result is more accurate and credible.

Description

Straw for laboratory

Technical Field

The utility model belongs to the laboratory article field relates to a straw is used in laboratory, especially relates to a suction pipe that can absorb and a small amount of liquid supplies the volume of inhaling after dismantling in splendid attire.

Background

In daily experiments, a straw is indispensable and is used for removing a small amount of liquid, fixing the volume and the like. A pipette for laboratory is composed of liquid bag, and solution container.

In experiments where larger volumes of liquid are removed, a portion is typically poured into a beaker and the desired volume is removed with a pipette or pipette gun. In practice, the amount of reagent or solution prepared is small. When the reagent bottle is poured into a beaker and only a small amount of the reagent bottle is taken, the reagent, the time and the waste of water resources during container cleaning can occur, and if the reagent bottle is directly taken from an original reagent bottle, the solvent residue at the pipette or the pipette nozzle can cause the cross contamination of the sample and influence the detection result.

Therefore, a straw that can be sucked and contains a small amount of liquid for suction after detachment helps to solve the above-mentioned problems.

Disclosure of Invention

Aiming at the problem that manpower, financial resources and material resources are wasted due to the transfer of a small amount of liquid, the invention provides the straw for the laboratory, which can absorb and contain a small amount of liquid for suction after disassembly, effectively reduces the waste of reagents, increases the use efficiency of the disposable plastic straw and ensures that the actual operation is more simplified and convenient; meanwhile, the probability of reagent pollution is reduced, and the experimental result is more accurate and credible.

The utility model provides a suction tube for laboratory, which is characterized in that the suction tube comprises a liquid bag (1), a split pull ring (2) and a tube body (3), wherein the liquid bag (1), the split pull ring (2) and the tube body (3) are mutually connected from top to bottom, and the whole suction tube is a hollow body with a wide top and a narrow bottom and is completely sealed except a liquid outlet (4) of the tube body (3); the split pull ring (2) can be torn, pulled, disassembled and connected with the liquid bag (1) and the tube body (3), and the split pull ring (2) is provided with a pull handle (5).

Drawings

FIG. 1 shows a structure of a straw for laboratory use.

Wherein: 1. a liquid sac; 2. disassembling the pull ring; 3. a pipe body; 4. a liquid outlet; 5. and (5) pulling the handle.

Detailed Description

Example one

Sucking about 3mL of liquid from the reagent bottle by using a pipette, inverting the pipette, and transferring the liquid into a sac (1), wherein the liquid level is lower than the disassembling pull ring (2). The pull handle (5) of the splitting pull ring (2) is torn by a hand, the joint of the splitting pull ring (2) and the liquid sac (1) and the pipe body (3) is torn, and the liquid sac (1) and the pipe body (3) are divided into two independent parts. The liquid is directly sucked from the liquid sac (1) by the liquid-transferring gun, so that the cross contamination which is possibly caused when the liquid-transferring gun is directly used for transferring from the reagent bottle can be avoided, and the waste of redundant reagents can be avoided when the reagents are transferred.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A straw for a laboratory is characterized by comprising a liquid bag (1), a splitting pull ring (2) and a tube body (3), wherein the liquid bag (1), the splitting pull ring (2) and the tube body (3) are made of plastic and are mutually connected from top to bottom, the whole straw is a hollow body with a wide top and a narrow bottom, and the straw is completely sealed except a liquid outlet (4) of the tube body (3); the split pull ring (2) can be torn, pulled, disassembled and connected with the liquid bag (1) and the tube body (3), and the split pull ring (2) is provided with a pull handle (5).