CN202162006U

CN202162006U - Novel pipettor

Info

Publication number: CN202162006U
Application number: CN2011202438370U
Authority: CN
Inventors: 曹智琨; 王飞飞; 李慧娟
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2011-07-12
Filing date: 2011-07-12
Publication date: 2012-03-14
Anticipated expiration: 2021-07-12

Abstract

The utility model belongs to the technical field of manufacturing of experimental instruments and particularly relates to a novel pipettor. The novel pipettor consists of a pipette, a branch tube and an airbag, wherein the pipette is provided with three openings; the opening at the bottom end is a conical hole; scale lines are arranged on the pipette; the branch tube is positioned on the side surface of the pipette; an inner cavity of the branch tube is communicated with the inner cavity of the pipette; the airbag is positioned at the head end of the pipette or the branch tube. The novel pipettor overcomes the defects that a traditional pipette is easy to roll on a tabletop, is complicated to operate and has poor safety, and a liquid level in the pipette cannot be microcontrolled when solution exists on fingers, thereby obtaining a certain beneficial effect.

Description

A kind of novel pipettor

Technical field

The utility model belongs to laboratory apparatus manufacturing technology field, especially a kind of novel pipettor.

Background technology

In the chemical laboratory, pipette is widely used as a kind of liquid instrument that pipettes, and traditional pipette is prone to roll, and experiment does not at ordinary times notice that slightly will tumble testing stand causes damage; Some experimenters operate too irritability in experimentation, can take ear washing bulb rapidly away when moving liquid, cause waste and unnecessary damages thereby cause liquid to take out of; The experimenter does when experiment in addition, and finger is adhesional wetting often, and causing pointing when blocking pipette the trickle space between the finger and pipette like this can be filled up by liquid fully, and then makes littlely when revolving pipette, can not reach the effect of adjustment intraluminal fluid face.

The utility model content

The utility model is intended to address the above problem; A kind of novel pipettor is provided; It has overcome, and traditional pipette is prone to roll on the table, the complicated operation security is not good, point drawbacks such as being difficult for micro-control intraluminal fluid face when solution is arranged; Obtained certain beneficial effect, its technical scheme that adopts is following:

A kind of novel pipettor; It is made up of pipette, arm and air bag, and said pipette has three openings, and bottom end opening is a bellmouth; Said pipette is provided with graduation mark; Said arm is positioned at the side of pipette, and a tube cavity communicates with said pipette inner chamber, and said air bag is positioned at the head end of pipette or arm.

Compared with prior art; The utlity model has following advantage: the vertical stratification of arm and pipette has avoided pipette to roll on the table; The adding of arm and air bag makes this pipette more easy to operate, has improved security, can accurately control the intraluminal fluid face simultaneously.

Description of drawings

Fig. 1: embodiment 1 faces structural representation;

Fig. 2: embodiment 2 faces structural representation;

Symbol description

1 pipette

2 arms

3 air bags

The specific embodiment

Below in conjunction with accompanying drawing and instance the utility model is described further:

Embodiment 1

A kind of novel pipettor of present embodiment as shown in Figure 1; It is made up of pipette 1, arm 2 and air bag 3, and said pipette 1 has three openings, and bottom end opening is a bellmouth; Said pipette 1 is provided with graduation mark; Said arm 2 is positioned at the side of pipette 1, and arm 2 inner chambers communicate with said pipette 1 inner chamber, and said air bag 3 is positioned at the head end of pipette 1.

In use, at first squeeze flat air bag 3 with left hand, and block the head end of arm 2 simultaneously with right hand forefinger, insert pipettor and wait to get in the liquid this moment.

Decontrol the air bag 3 of left hand then; After treating that liquid in pipe stops to rise, the little pipettor pipe shaft that revolves of right-handed thumb and middle finger, the small spaces of utilizing the forefinger and the mouth of pipe to produce; Come the interior liquid level of adjustable pipe up to reaching required volume; Pipettor is taken out from waiting to get the liquid container, put into the container that liquid holds, decontrol the right hand forefinger liquid in the pipe is flowed in the container rapidly.When speckling with solution on the forefinger of blocking arm 2, when revolving the pipettor pipe shaft, the shearing force that is produced is enough to moisture film is destroyed, thereby has ensured that liquid in pipe accurately flows out little.

Embodiment 2

A kind of novel pipettor of present embodiment as shown in Figure 2; It is made up of pipette 1, arm 2 and air bag 3, and said pipette 1 has three openings, and bottom end opening is a bellmouth; Said pipette 1 is provided with graduation mark; Said arm 2 is positioned at the side of pipette 1, and arm 2 inner chambers communicate with said pipette 1 inner chamber, and said air bag 3 is positioned at the head end of arm 2.

In use, at first squeeze flat air bag 3 with left hand, and block the head end of pipette 1 simultaneously with right hand forefinger, insert pipettor and wait to get in the liquid this moment.

Decontrol the air bag 3 of left hand then; After treating that liquid in pipe stops to rise, the little pipettor pipe shaft that revolves of right-handed thumb and middle finger, the small spaces of utilizing the forefinger and the mouth of pipe to produce; Come the interior liquid level of adjustable pipe up to reaching required volume; Pipettor is taken out from waiting to get the liquid container, put into the container that liquid holds, decontrol the right hand forefinger liquid in the pipe is flowed in the container rapidly.Because of the graduation mark close together on this structure air bag 3 and the pipette, so be convenient to when observing liquid level, observe the recovery situation of air bag 3.

With way of example the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment, all any changes done based on the utility model or modification all belong to the utility model and require the scope protected.

Claims

1. novel pipettor; It is characterized in that: be made up of pipette, arm and air bag, said pipette has three openings, and bottom end opening is a bellmouth; Said pipette is provided with graduation mark; Said arm is positioned at the side of pipette, and a tube cavity communicates with said pipette inner chamber, and said air bag is positioned at the head end of pipette or arm.