CN211800912U

CN211800912U - Connecting device for connecting glass suction pipe with pipettor

Info

Publication number: CN211800912U
Application number: CN201922109362.5U
Authority: CN
Inventors: 李晓燕; 普艳丽; 张刘柳
Original assignee: Yuxi Jiuzhou Biological Technology Co ltd
Current assignee: Yuxi Jiuzhou Biological Technology Co ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-10-30
Anticipated expiration: 2029-11-30

Abstract

The utility model relates to a connecting device for connecting a pipettor with a glass straw, which comprises a sleeve and a retainer ring, wherein the sleeve is of a cylindrical structure with a large top and a small bottom, a gasket ring is arranged at the position close to the upper end in the sleeve, a glass straw fixing component is arranged at the position close to the lower end in the sleeve, the glass straw fixing component is of an annular structure comprising two grooves, and a door is arranged on the surface of the sleeve between the gasket ring and the glass straw fixing component; the clamping ring comprises two bulges, and the clamping ring is detachably sleeved at the upper end of the glass suction pipe. Through the utility model discloses a connecting device can realize being connected glass straw and pipettor, through the pipettor operation, accomplishes to get with the ration of glass straw, put the liquid, has simplified the operation that the glass straw moved and gets liquid, reduces its ration simultaneously and moves the error of getting liquid, and because the glass straw can use repeatedly, greatly reduced use cost.

Description

Connecting device for connecting glass suction pipe with pipettor

Technical Field

The utility model relates to a pipettor technical field especially relates to a connecting device of glass straw is connected to pipettor.

Background

A pipette, also called a pipette, is generally used to measure a small amount or a trace amount of liquid when performing research on analysis and testing, and is applied to various industries such as chemistry, biology, medical treatment, and the like. In experimental procedures or large scale production, liquid is often removed using glass pipettes. The glass pipette needs to be operated by both hands to remove liquid, holds the pipette in one hand, and operates the aurilave in the other hand, if need to remove quantitatively, then to the operating requirement higher, and there is the error in different people's operations, and the commercialization pipettor need connect specific disposable suction head and use, in the experiment of frequently moving the liquid, use cost is higher.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a connecting device for connecting a glass straw by a liquid transfer device. The technical scheme of the utility model is specifically as follows:

the connecting device for connecting the glass suction pipe by the pipettor comprises a sleeve and a clamping ring, wherein the sleeve is of a cylindrical structure with a large upper part and a small lower part, a gasket ring is arranged at a position close to the upper end in the sleeve, a glass suction pipe fixing component is arranged at a position close to the lower end in the sleeve, and the glass suction pipe fixing component is of an annular structure comprising two grooves; the clamping ring comprises two bulges, and the clamping ring is detachably sleeved at the upper end of the glass suction pipe; the two protrusions of the clamping ring and the two grooves of the glass suction pipe fixing component can be mutually matched.

Further, the sleeve (1) is a plastic sleeve.

Furthermore, the gasket ring is compressible and has a certain width, so that the gasket ring can be connected with straws of different specifications.

Further, a gate is provided on the surface of the sleeve between the gasket ring and the glass pipette fixture.

Further, the door is a door capable of being pushed and pulled.

Compared with the prior art, the beneficial effects of the utility model are specifically as follows:

through the utility model discloses can realize being connected glass straw and pipettor, through the pipettor operation, accomplish with the ration volume of glass straw get, put the liquid, simplified the operation that the glass straw moved and got the liquid, reduce its ration simultaneously and move the error of getting the liquid, and because the glass straw can use repeatedly, greatly reduced use cost.

Drawings

Fig. 1 is a schematic structural view of a sleeve of a connecting device of the present invention;

fig. 2 is a cross-sectional view a-a of fig. 1 of the connection device of the present invention;

fig. 3 is a schematic view B-B of fig. 1 of the connection device of the present invention;

FIG. 4 is a schematic view of the collar of the coupling device of the present invention attached to a glass straw;

FIG. 5 is a schematic view C-C of FIG. 4 showing the collar of the adapter of the present invention attached to a glass straw;

fig. 6 is a schematic view of a connection device for connecting a glass pipette to a pipette according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.

As shown in fig. 1, the connecting device for connecting a glass pipette to a pipette in this embodiment includes a sleeve 1 and a collar 2, as shown in fig. 1, the sleeve 1 is a cylindrical structure with a large top and a small bottom, a gasket ring 3 is disposed inside the sleeve 1 near the upper end, as shown in fig. 2, a glass pipette fixing member 4 is disposed inside the sleeve 1 near the lower end, the glass pipette fixing member 4 is a ring structure including two grooves 5, as shown in fig. 3, a door 6 is disposed on the surface of the sleeve 1 between the gasket ring 3 and the glass pipette fixing member 4; the clamping ring 2 comprises two bulges 7 and is detachably sleeved at the upper end of the glass suction pipe 8; the two protrusions 7 of the collar 2 and the two recesses 5 of the glass straw fixation member may cooperate with each other.

In this embodiment, the sleeve 1 is made of plastic, the gasket ring 3 is compressible and has a certain width to meet the requirement of connecting suction pipes with different specifications, and the door 6 is a door capable of being pushed and pulled.

When the liquid is moved, as shown in fig. 6, the liquid transfer device 9 is connected with the upper end of the sleeve 1 in a nested manner, the liquid transfer device 9 is pressed on the gasket ring 3 of the sleeve 1, the clamping ring 2 is sleeved at the upper end of the glass suction pipe 8, the glass suction pipe 8 penetrates through the sleeve 1 and is fixed on the sleeve 1, after two protrusions 7 of the clamping ring 2 are mutually butted with two grooves 5 of the glass suction pipe fixing component 4, the glass suction pipe 8 is rotated 90 degrees clockwise, so that the glass suction pipe 8 is fixed on the connecting device, and meanwhile, the gasket ring 3 is pressed at the upper end of the glass suction pipe 8, so that the gasket ring 3 is deformed to a certain degree, and the sealing between the liquid transfer device 9 and the glass. The liquid is quantitatively taken out and put in by the glass pipette 8 through the operation of the liquid transfer device 9.

After the pipetting operation is finished, the glass pipette 8 is rotated 90 degrees anticlockwise to enable the two protrusions 7 of the clamping ring 2 to be screwed to the two grooves 5 of the glass pipette fixing component 4, and then the glass pipette 8 is taken out of the connecting device. The pipette 9 is separated from the connecting device 10, the collar 2 is taken off from the glass pipette 8, and the collar 2 can be placed in the cavity of the sleeve 1 between the gasket ring 3 and the glass pipette fixing member 4 through the door 6 which can be pushed and pulled, so that the collar 2 is prevented from being lost, as shown in fig. 4 and 5.

The utility model discloses not be limited to the specific details among the above-mentioned embodiment the utility model discloses a within the technical idea scope, can be right the technical scheme of the utility model carry out multiple simple variant, these simple variants all belong to the utility model discloses a protection scope. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

Claims

1. The connecting device for connecting the glass suction pipe with the pipette comprises a connecting device body and is characterized in that the connecting device body comprises a sleeve (1) and a clamping ring (2), the sleeve (1) is of a cylindrical structure with a large upper part and a small lower part, a gasket ring (3) is arranged in the sleeve (1) close to the upper end, a glass suction pipe fixing component (4) is arranged in the sleeve (1) close to the lower end, and the glass suction pipe fixing component (4) is of an annular structure comprising two grooves (5); the clamping ring (2) comprises two protrusions (7), and the clamping ring (2) is detachably sleeved at the upper end of the glass suction pipe (8); the two bulges (7) of the clamping ring (2) are matched with the two grooves (5) of the glass suction pipe fixing component (4).

2. The pipette tip attachment device according to claim 1, wherein: the sleeve (1) is a plastic sleeve.

3. The pipette tip attachment device according to claim 1, wherein: the gasket ring (3) is compressible and has a certain width.

4. The pipette tip attachment device according to claim 1, wherein: a door (6) is arranged on the surface of the sleeve (1) between the gasket ring (3) and the glass sucker fixing component (4).

5. The pipette tip attachment device according to claim 4, wherein: the door (6) is a door capable of being pushed and pulled.