CN202725207U

CN202725207U - Centrifugal tube

Info

Publication number: CN202725207U
Application number: CN 201220426710
Authority: CN
Inventors: 蒋峥嵘
Original assignee: Zhejiang Sorfa Medical Plastic Co Ltd
Current assignee: Zhejiang Sorfa Medical Plastic Co Ltd
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2013-02-13
Anticipated expiration: 2022-08-27

Abstract

The utility model discloses a centrifugal tube which comprises a tube body and a tube cap. The bottom of the tube body is a conical part, scale lines are printed on the tube body, the conical part is provided with a plurality of indents or scale marks formed by convex marks on the inner wall. According to the technical scheme, the scale lines and marks are disposed on the conical part through indents and convex marks, printing and the tube body need not be integrated, and the centrifugal tube is simple in structure, convenient to manufacture and convenient for use and observation when liquid in the tube is little.

Description

Centrifuge tube

Technical field

The utility model relates to a kind of centrifuge tube.

Background technology

Centrifugation technique is in bioscience, and particularly biochemistry and molecular biology research field have obtained using very widely, and the centrifuge of multiple pattern will be prepared by each biochemistry and Molecular Biology Lab.Centrifugation technique is mainly used in separation and the preparation of various biological samples, biological sample suspension is contained in the centrifuge tube under High Rotation Speed, because huge centrifugal action, make the molecule (such as precipitation of organelle, large biological molecule etc.) of suspension with certain velocity sedimentation, thereby separated with solution.

In the prior art, centrifuge tube comprises body and Guan Gai, the body bottom is tapered portion, be printed with graduation mark at the body pipe shaft, but therefore, can't print graduation mark in tapered portion, when liquid in the body is lower than minimum graduation mark on the pipe shaft, just liquid volume can't be observed, the little centrifuge tube of volume can only be changed.The pipe lid is threaded with the tube mouth place, and the pipe lid is used for supporting and sealed tube body.In the existing structure design, after the pipe lid screws with body, generally realize sealing by the madial wall tight fit that is located at sealing bulge loop and tube mouth on the pipe tops inwall, sealing effectiveness is poor.Also have by realizing sealing between tube mouth end face and the pipe tops inwall, but sealing effectiveness is also not satisfactory.

Summary of the invention

In order to solve above-mentioned technical problem, the purpose of this utility model provides a kind of centrifuge tube, in tapered portion graduation mark is set, using and observing when making things convenient for liquid in pipe less.

To achieve the above object, the utility model has adopted following technical scheme:

A kind of centrifuge tube comprises body and Guan Gai, and the body bottom is tapered portion, is printed with graduation mark at the body pipe shaft, and the inwall of described tapered portion is provided with the scale mark that is formed by some indentures or convex epirelief.

As preferably, described pipe lid is threaded with the mouth of pipe of body, pipe tops inwall is provided with sealing bulge loop and seal boss, thereby seal boss is looped around sealing bulge loop outside between and forms the cannelure that can embed for the mouth of pipe edge of body, described sealing bulge loop is obliquely installed laterally and forms the first annular protrusion in its outside, this first annular protrusion contacts sealing with the mouth of pipe madial wall of body, the lateral wall of described cannelure is the conical surface, the outer side contacts sealing of the mouth of pipe of this conical surface and body, this cannelure is formed with the second annular protrusion at the wall of pipe tops side, the mouth of pipe end contact sealing of this second annular protrusion and body.Three grades of sealings are set and consist of labyrinth structure, fully guaranteed sealing effectiveness, avoid seepage, and the sealing contact site is line contact sealing, simple in structure, be easy to realize low cost of manufacture.

The utility model is owing to adopted above technical scheme, and the mode by the concave, convex trace on tapered portion arranges graduation mark and mark, does not need printing, and is one-body molded with body, simple in structure, easily manufactured, using and observing when making things convenient for liquid in pipe less.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of embodiment 1 pipe lid.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is made a detailed explanation.

Embodiment 1:

A kind of centrifuge tube as shown in Figure 1 comprises that body 2 and pipe cover 1, and body 2 bottoms are tapered portion 22, are printed with the graduation mark (not shown) at body 2 pipe shafts, and the inwall of described tapered portion 22 is provided with the scale mark 23 that is formed by many indentures or convex epirelief.

In the present embodiment, as shown in Figure 2, described pipe lid 1 is threaded with the mouth of pipe 21 of body 2, pipe tops 11 inwalls are provided with sealing bulge loop 12 and seal boss 15, thereby seal boss 15 is looped around sealing bulge loop 16 outside betweens and forms the cannelure 13 that can embed for the mouth of pipe 21 edges of body 2, described sealing bulge loop 12 is obliquely installed laterally and forms the first annular protrusion 16 in its outside, this first annular protrusion 16 contacts sealing with the mouth of pipe 21 madial walls of body 2, the lateral wall of described cannelure 13 is the conical surface, the mouth of pipe 21 outer side contacts sealings of this conical surface and body 2, this cannelure 13 is formed with the second annular protrusion 14 at the wall of pipe tops 11 sides, and this second annular protrusion 14 seals with the mouth of pipe 21 end contacts of body 2.

It is emphasized that: above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.

Claims

1. centrifuge tube, comprise body (2) and pipe lid (1), body (2) bottom is tapered portion (22), is printed with graduation mark at body (2) pipe shaft, it is characterized in that the inwall of described tapered portion (22) is provided with the scale mark (23) that is formed by some indentures or convex epirelief.

2. a kind of centrifuge tube according to claim 1, it is characterized in that, described pipe lid (1) is threaded with the mouth of pipe (21) of body (2), pipe tops (11) inwall is provided with sealing bulge loop (12) and seal boss (15), seal boss (15) is looped around sealing bulge loop (16) thereby the outside between forms the cannelure (13) of the mouth of pipe (21) the edge embedding that can supply body (2), described sealing bulge loop (12) is obliquely installed laterally and forms the first annular protrusion (16) in its outside, this first annular protrusion (16) contacts sealing with the mouth of pipe (21) madial wall of body (2), the lateral wall of described cannelure (13) is the conical surface, the outer side contacts sealing of the mouth of pipe (21) of this conical surface and body (2), this cannelure (13) is formed with the second annular protrusion (14) at the wall of pipe tops (11) side, and this second annular protrusion (14) seals with the mouth of pipe (21) end contact of body (2).