CN202876840U

CN202876840U - Disposable liquid relief tube

Info

Publication number: CN202876840U
Application number: CN 201220431556
Authority: CN
Inventors: 蒋峥嵘
Original assignee: Zhejiang Sorfa Medical Plastic Co Ltd
Current assignee: Zhejiang Sorfa Medical Plastic Co Ltd
Priority date: 2012-08-29
Filing date: 2012-08-29
Publication date: 2013-04-17
Anticipated expiration: 2022-08-29

Abstract

The utility model discloses a disposable liquid relief tube which comprises a tube nozzle, a tube body and a tube tail, wherein the tube nozzle, the tube body and the tube tail are integrally formed in a drawing mode; a shrunk neck part is formed at the tube tail; and a hydrophilic filtering core is inserted into the shrunk neck part from a through hole of the tube tail. According to the technical scheme, as the tube nozzle, the tube body and the tube tail adopt the drawing forming mode, situations of cold solder, flash and relief liquid wall built-up are effectively prevented, which is reliable and safe to use. The hydrophilic filtering core arranged at the tube tail is easy to swell after absorbing water, so that situations of return absorption or overflowing are completely avoided. The disposable liquid relief tube is convenient and rapid to use, safe and reliable, good in product quality and low in manufacturing cost.

Description

Disposable pipette

Technical field

The utility model relates to a kind of disposable pipette.

Background technology

Disposable pipette adopts transparent polymer material polystyrene (GPPS) to make.Can be widely used in the clinical and scientific research experiment field such as tissue cultivation, bacteriology.Present disposable pipette, filled in cotton in its pipe end routine, in use, the electric pipettor that can cooperate each class standard prevents suck-back and spill-over, still simultaneously, adopt cotton to be the structure of plug core, because can't the control amount, still there be of non-ideal use, insecure situation, in use or can produce the problems such as suck-back, spill-over, obstruction.

Publication number is that the patent documentation of CN201603564U discloses the disposable pipette of a kind of plug core, in the rear end of pipe shaft one end plug is installed, and is provided with the hydrophobicity filter core in the end plug, plays the suck-back that in use occurs or the situation of spill-over of preventing by this filter core.But, also just can't hinder liquid and pass through thereby the hydrophobicity filter core is difficult for imbibition, thereby can not avoid the generation of suck-back or spill-over situation fully; And in the above-mentioned document, the filtering plug core is mounted in the through hole of end plug, and like this, it is mobile in through hole also can to promote the filtering plug core when suck-back or spill-over occur, and affects result of use.

And, disposable pipette of the prior art, to be connected into a complete body by nipple end, pipe shaft and pipe tail end plug three parts through supersonic welding, in end plug, fill in again one piece of monochrome (white) cotton core, behind the plug core, also need silk-screen scale and pipe tail colour circle line (different color of colour circle line is the pipette of distinguishing different capabilities for convenient).But, adopt monochromatic cotton core still to have of non-ideal use, insecure situation for many structures ultra-sonic welded mode of plug core: when ultrasonic bonding nipple end, pipe shaft and pipe tail end plug because the problems such as air pressure, environment, equipment can cause pipe shaft and welding between nipple end, the end plug to cause easily dry joint, weldering askew (decentraction), weld quality problems such as causing overlap.

Summary of the invention

In order to solve above-mentioned technical problem, the purpose of this utility model provides the disposable pipette of plug core of a kind of esy to use, safe and reliable, good product quality, low cost of manufacture.

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

Disposable pipette comprises ozzle, pipe shaft and pipe tail, described ozzle, pipe shaft and pipe tail one drawing and forming, and the pipe urogenesis has necking part, and a hydrophily filter core is filled in to necking part from the through hole of pipe tail.

As preferably, described filter core is and the friction tight colored filter core of through hole of pipe tail.

The utility model because the mode of ozzle, pipe shaft, pipe tail employing drawing and forming can effectively prevent dry joint, overlap and the situation of moving the liquid wall built-up, uses reliable, safety owing to adopted above technical scheme.Pipe tail set hydrophily filter core, easily imbibition, thereby can avoid the generation of suck-back or spill-over situation fully.And, by the colored filter core of different colours is installed at the pipette of different capabilities, like this, needn't the silk-screen colour circle, just can be easily according to different colours differentiation different capabilities.Convenient to use, safe and reliable, good product quality, low cost of manufacture.

Description of drawings

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

Fig. 2 is the I section enlarged drawing of Fig. 1.

The specific embodiment

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

Embodiment 1:

Disposable pipette as shown in Figure 1 and Figure 2 comprises ozzle 1, pipe shaft 2 and pipe tail 3, described ozzle 1, pipe shaft 2 and pipe tail 3 one drawing and formings, and pipe tail 3 is formed with necking part 31, one hydrophily filter cores 4 and fills in to necking part 31 from the through hole of pipe tail 3.Described filter core 4 is and the friction tight colored filter core of through hole of managing tail 3.

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. disposable pipette, comprise ozzle (1), pipe shaft (2) and pipe tail (3), it is characterized in that, described ozzle (1), pipe shaft (2) and pipe tail (3) one drawing and forming, pipe tail (3) is formed with necking part (31), and a hydrophily filter core (4) is filled in to necking part (31) from the through hole of pipe tail (3).

2. disposable pipette according to claim 1 is characterized in that, described filter core (4) is and the friction tight colored filter core of through hole of managing tail (3).