CN2229928Y

CN2229928Y - Pollution-proof trace amount centrifuge tube

Info

Publication number: CN2229928Y
Application number: CN 95221396
Authority: CN
Inventors: 罗家晖
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-14
Filing date: 1995-09-14
Publication date: 1996-06-26
Anticipated expiration: 2005-09-14

Abstract

The utility model relates to a pollution-proof trace amount centrifuge tube, comprising a tube body 1 and a tube cap 3 with a tube plug 2, the tube cap is connected with tube body 1 integrally, wherein the tube cap 3 is provided with an edge 4, a flange 5 is arranged between the edge 4 and the tube plug 2; a double locking system is composed of the flange 5 of the tube cap 3, the jaw opening of the tube body 1, a cavity of the tube body 1, and the lower flange 9 of the tube plug 2. The utility model can efficiently prevent experimenters' fingers or an opener touching with the tube plug and automatic flick of a tube cap, and prevents samples in a tube from being contaminated.

Description

Anti-pollution Eppendorf tube

The utility model relates to a kind of Eppendorf tube, the anti-pollution Eppendorf tube of particularly a kind of locking type.

Eppendorf tube is one of the most frequently used device of fundamental sum in the experiment of life science, especially biology field.Because in the existing Eppendorf tube design, the experimenter is when operations such as open pipe, finger or opener tend to touch inevitably the pipe close part, thereby cause the pollution of sample in the pipe.When sample was the thymus nucleic acid (DNA) in various sources in the pipe, the sample after these are polluted made original sample changed beyond recognition behind process polymerase chain reaction (PCR).And when at high temperature carrying out high speed centrifugation, the pipe lid of Eppendorf tube can automatically spring open, thereby is polluted after causing sample to be exposed in the air, even spills in managing.

The purpose of this utility model provides a kind of improved anti-pollution Eppendorf tube, and it can prevent in experimental implementation the pollution that causes owing to contact, should manage automatically springing open of covering by pipe in the time of avoiding under the high temperature high speed centrifugation again.

The purpose of this utility model is achieved through the following technical solutions, and the anti-pollution Eppendorf tube of a kind of locking type comprises a body and one and body upper end pipe lid that fuse, the band pipe close.Wherein, pipe has covered an edge, and a flange is arranged between this edge and pipe close.

In addition, the opening part of body has a projection that extends radially outwardly with certain arc length, on the flange of aforementioned tube lid a projection that extends radially inwardly is arranged, and both constitute first fastening system.

Also have, a cancave cambered surface is arranged at the inner chamber top of body, and a flange that extends radially outwardly is arranged at the pipe close bottom, and both close-fittings engage, and constitute second fastening system.

The utility model has the advantages that, owing between pipe close and Guan Gai edge, a flange is arranged, can prevent contacting of experimenter's finger or opener and pipe close; In addition,, thereby manage automatically springing open of covering can prevent under the high temperature high speed centrifugation time, avoid sample to be subjected to the pollution of air even in managing, spill because flange and the opening part of body, the inner chamber of body and the flange of pipe close bottom of pipe lid have constituted the two-bolt lock clamping system.

Below in conjunction with accompanying drawing an embodiment of the present utility model is done detailed explanation, so that more clearly understand design of the present utility model and advantage.Wherein, accompanying drawing is:

Fig. 1 is the structural representation that has broken section of the utility model one embodiment; With

Fig. 2 is the amplification view on the top when closing upper tube cap embodiment illustrated in fig. 1.

Referring to Fig. 1 and Fig. 2, the utility model Eppendorf tube comprises a body 1 and one and body 1 upper end one pipe lid 3 that be linked to be, band pipe close 2.Pipe cover 3 and body 1 between the globality connection portion be flexible, flexiblely cover 3 and be placed on the body 1 managing.Pipe covers an edge 4 on 3, a flange 5 is arranged between this edge 4 and pipe close 2.Tube used for bottom pouring covered 3 o'clock, pushed pipe and cover 3 edge 4, can open easily to manage to cover 3 and contacting of experimenter's finger or opener and capping plug 2 can not take place.In addition, the opening of body 1 has a projection that extends radially outwardly 6 with certain arc length, on the flange 5 of aforementioned tube lid 3 projection that extends radially inwardly 7 is arranged, and both constitute first fastening system.Also have, the upper inside wall of body 1 has a concave panel 8, and a collar flange that extends radially outwardly 9 is arranged at the bottom of pipe close 2, and both close-fittings engage, and constitute second fastening system.

When using the experiment of present embodiment Eppendorf tube, after adding less water solution therein respectively at the speed high speed rotating that changes with per minute 14000 under the low temperature of 121 ℃ high temperature and-80 ℃ when centrifugal, do not find that all the pipe lid automatically springs open, the capping effect is very reliable.

Identical label is represented identical parts or structure in the accompanying drawing.

It is pointed out that the embodiment and the accompanying drawing that provide only are for illustrative purposes here, the utility model is not played the qualification effect.The scope of patent protection of the utility model application is limited by appended claims.

Claims

1. Eppendorf tube, comprise a body (1) and one and body (1) upper end one pipe lid (3) that be linked to be, band pipe close (2), it is characterized in that, on the pipe lid (3) edge (4) is arranged, between this edge (4) and pipe close (2), a flange (5) is arranged, the opening part of body (1) has a projection that extends radially outwardly (6) with certain arc length, on the flange (5) of pipe lid (3) projection that extends radially inwardly (7) is arranged.

2. by the described Eppendorf tube of claim 1, it is characterized in that a concave panel (8) is arranged at the inner chamber top of body (1), a flange that extends radially outwardly (9) is arranged at the bottom of pipe close (2), and both close-fittings engage.