CN203598833U

CN203598833U - Pipette

Info

Publication number: CN203598833U
Application number: CN201320706151.XU
Authority: CN
Inventors: 尚智
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-08
Filing date: 2013-11-08
Publication date: 2014-05-21
Anticipated expiration: 2023-11-08

Abstract

The utility model discloses a pipette. The pipette comprises a connecting end with a pipetting opening with a sharp nozzle on one end and the other end being connected with a rubber pipe in a sleeving manner, wherein the outer diameter of the connecting end is gradually reduced towards the end. The outer diameter of the connecting end for connecting the pipette and the medical rubber pipe in a sleeved manner is gradually reduced towards the opening, so that the rubber pipe can be connected onto the connecting end of the pipette in a sleeved manner; the inner diameter of an ordinary rubber pipe is slightly smaller than the maximal outer diameter of the connecting end, so that after the rubber pipe is connected onto the connecting end in a sleeved manner, compactness in connection is realized, and the rubber pipe is unlikely to drop and leak air. The outer diameter of the opening of the connecting end is small, so that the rubber pipe is conveniently connected onto the connecting end in a sleeved manner, and the phenomenon that fingers of an operator are harmed can be avoided.

Description

A kind of pipette

Technical field

The utility model relates to chemical apparatuses field, in particular, relates to a kind of pipette.

Background technology

In the time testing, such as in the time doing cell cultivation, draw, add the operations such as cell culture fluid and resuspended cultured cell and generally linked together by medical rubber pipe with ear washing bulb and pipette, and be that one hand completes.The concrete connected mode of pipette and ear washing bulb is: get an ear washing bulb, one section of medical rubber pipe and a pipette, ear washing bulb point mouth is inserted in rubber tube and closely coupled together, the mouth of pipe of pipette inserts the other end of rubber tube, thereby by rubber tube, pipette and ear washing bulb are communicated with, so just easy to use.Ear washing bulb is held in the centre of the palm by operator's right ring finger and little finger of toe like this, and thumb, forefinger and middle finger pinch pipette link, owing to there being one section of rubber tube to be connected between ear washing bulb and pipette, operates conveniently, flexibly; And pipette and ear washing bulb be all in operator's hand, difficult drop-off, safer.

Rubber tube is in the time being socketed with the mouth of pipe of pipette, the internal diameter of rubber tube is slightly less than the external diameter of the mouth of pipe of pipette, thereby rubber tube is closely socketed on pipette, good sealing effect, can not leak gas, and in the experimental implementation process of cultivating at cell, will constantly change pipette, and then will constantly rubber tube be taken off and be put from pipette, but rubber tube is difficult for being socketed on pipette, and need constantly socket, so just more difficult realization.In addition, in the time that rubber tube is socketed on pipette, the mouth of pipe injures operator's finger sometimes.

Utility model content

Technical problem to be solved in the utility model is to provide easily socket pipette thereon of a kind of medical grade rubber leather sheath.

The purpose of this utility model is achieved through the following technical solutions: a kind of pipette, comprise one end have sharp mouth move liquid mouth and the other end for the link of rubber tube socket, the outer radial port direction of described link is dwindled gradually.

Preferably, the outer radial port direction of described link is dwindled formation pyramidal structure gradually.Further facilitating like this medical rubber pipe box is connected on link.

Preferably, the cross section of described link is cirque structure.Be that link forms conical structure, thereby further facilitate the socket of medical rubber pipe, and be difficult for gas leakage after socket is connected.

Preferably, described link outer surface is provided with convex annular edge, and the external diameter on described convex annular edge is less than the maximum outside diameter of described link.Thereby the compactness that increases link and rubber tube socket, prevents gas leakage.

Preferably, the vertical section on described convex annular edge is arcuate structure.Be convenient to rubber tube socket.

Preferably, the lateral wall at described port edge is provided with rounding.Arrange and further facilitate rubber tube and be socketed on link like this, and operator just can not come to harm because of port corner angle in the time that rubber tube is socketed on link.

Preferably, the vertical height of described link is 2 to 8 millimeters.This is the preferred height that link arranges.

Preferably, the vertical height of described link is 5 millimeters.This is the optimum height that link arranges, thereby facilitates pipette to be inserted in rubber tube.

Preferably, the difference of described link maximum outside diameter and minimum outer diameter is 2 millimeters.Arrange and make that pipette is convenient to be inserted in rubber tube like this.

The utility model is because its port direction of outer radial of the link of pipette and medical rubber pipe socket is dwindled gradually, thereby is connected on the link of pipette with regard to Convenient rubber pipe box; The internal diameter of general rubber tube is slightly less than the maximum outside diameter of link, connects closely difficult drop-off and gas leakage after rubber tube is socketed on link like this.And the less Convenient rubber pipe socket of the port external diameter of link, thereby just there will not be the phenomenon that injures operator's finger.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment pipette;

Fig. 2 is another structural representation of the utility model embodiment pipette.

Wherein: 1, port; 2, link; 3, Jian Zui; 4, move liquid mouth; 5, convex edge.

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in further detail.

The utility model discloses a kind of pipette, as illustrated in fig. 1 and 2, comprise one end have sharp mouth 3 move liquid mouth 4 and the other end for the link 2 of rubber tube socket, the outer radial port one direction of described link 2 is dwindled gradually.

The utility model is because its port one direction of outer radial of the link 2 of pipette and medical rubber pipe socket is dwindled gradually, thereby is connected on the link 2 of pipette with regard to Convenient rubber pipe box; The internal diameter of general rubber tube is slightly less than the maximum outside diameter of link 2, connects closely difficult drop-off and gas leakage after rubber tube is socketed on link 2 like this.And the less Convenient rubber pipe socket of the port one place external diameter of link 2, thereby just there will not be the phenomenon that injures operator's finger.

As shown in Figure 1, the outer radial port one direction of link 2 is dwindled formation pyramidal structure gradually, the concrete conical structure that is, the cross section that is link 2 is cirque structure, setting just further facilitates rubber tube and is socketed on link 2 like this, and makes to be fixed by socket rear difficult gas leakage, easy to use.The external diameter of the port one of the present embodiment link 2 is slightly less than the internal diameter of rubber tube, and the internal diameter of rubber tube is slightly less than the maximum outside diameter of link 2, thereby not only Convenient rubber pipe box is connected on link 2, and it is tight to make to be fixed by socket rear connection, is difficult for gas leakage.

In the present embodiment, the port one edge lateral wall of link 2 is provided with rounding, be socketed on link 2 thereby further facilitate rubber tube, and operator just can not come to harm because of the corner angle of port one on the link 2 that rubber tube is socketed in to pipette time.

As further improvement of this embodiment, as shown in Figure 2, the convex annular that link 2 outer surfaces are provided with at least one circle is along 5, and convex annular is less than the maximum outside diameter of link 2 along 5 maximum outside diameter, thereby increases the compactness of link 2 and rubber tube socket, prevents gas leakage.Convex annular can be set to one along 5, and two even interval layouts of carrying out also can be set more.And convex annular is arcuate structure along 5 vertical section, convex annular is arc surface structure along 5 surface, reduces frictional force, is socketed on link 2 thereby be convenient to rubber tube.

The vertical height of the present embodiment link 2 is 2 to 8 millimeters, and as shown in Fig. 1 to 2, the height that preferred scheme is link 2 is 5 millimeters, and this is the optimum height that link 2 is set, and Convenient rubber pipe box is connected on link 2, and makes to connect closely.Corresponding, the maximum outside diameter of link 2 and the difference of minimum outer diameter are 1 millimeter, the maximum outer radius of link 2 and the difference of minimum outer radius are 1 millimeter.

Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims

1. a pipette, comprise one end have sharp mouth move liquid mouth and the other end for the link of rubber tube socket, it is characterized in that, the outer radial port direction of described link is dwindled gradually.

2. pipette as claimed in claim 1, is characterized in that, the outer radial port direction of described link is dwindled formation pyramidal structure gradually.

3. pipette as claimed in claim 2, is characterized in that, the cross section of described link is cirque structure.

4. pipette as claimed in claim 3, is characterized in that, described link outer surface is provided with convex annular edge, and the external diameter on described convex annular edge is less than the maximum outside diameter of described link.

5. pipette as claimed in claim 4, is characterized in that, the vertical section on described convex annular edge is arcuate structure.

6. the pipette as described in as arbitrary in claim 1 to 5, is characterized in that, the lateral wall at described port edge is provided with rounding.

7. pipette as claimed in claim 3, is characterized in that, the vertical height of described link is 2 to 8 millimeters.

8. pipette as claimed in claim 7, is characterized in that, the vertical height of described link is 5 millimeters.

9. pipette as claimed in claim 8, is characterized in that, the difference of described link maximum outside diameter and minimum outer diameter is 2 millimeters.