CN217796193U

CN217796193U - Disposable glass suction head

Info

Publication number: CN217796193U
Application number: CN202221613397.8U
Authority: CN
Inventors: 蔡家锟; 朱珂佳; 于洪
Original assignee: Beijing Hbh Instrument Co ltd
Current assignee: Beijing Hbh Instrument Co ltd
Priority date: 2022-06-25
Filing date: 2022-06-25
Publication date: 2022-11-15
Anticipated expiration: 2032-06-25

Abstract

The utility model discloses a disposable glass suction head, which comprises a tubular neck part, a middle cavity and a tail pipe, wherein the neck part is made of transparent glass; the two ends of the middle cavity are respectively provided with a neck part and a tail pipe which have the same structure in the axial direction. The neck, the middle cavity and the tail pipe are in coaxial circular tube shapes, the outer diameter of the neck is smaller than that of the middle cavity, and the outer diameter of the neck is larger than that of the tail pipe; the two ends of the middle cavity and the neck and the tail pipe are respectively transited through a cone; wherein, the neck is used for connecting the kneck that the liquid moved the device of getting, and the lumen is used for storing liquid, and the tail pipe is used for inserting below the liquid level of waiting to get liquid. The utility model discloses the liquid of mainly used little volume volumetric flask or similar thin neck container is removed and is got, has advantages such as simple structure, simple operation, disposable pollution-free.

Description

Disposable glass suction head

Technical Field

The utility model relates to a liquid moves accessory of getting device specifically is a disposable glass suction head for test moving of liquid is got in all kinds of laboratories, research and development, the detection mechanism, moves with current liquid and gets supporting the use of device, belongs to glass suction head device field.

Background

Liquid removal is a common practice in various laboratory, research and development, and testing facilities, but is still difficult and inefficient for liquid removal in small volume volumetric flasks (25 ml and less) and partially narrow neck-like containers.

The methods currently used are mainly pouring and sucking. The pouring method is to pour the liquid in the container into another clean wide-mouth container and suck the liquid, so that the number of the containers, the cleaning times and the pollution risk are increased. The suction method is to suck by a suction head or a pipette, and the conventional suction head is too short or too thick and is difficult to penetrate into a narrow-neck container and even cannot reach the position below the liquid level to suck; the pipette is too long, which causes inconvenience in operation and the glass pipette needs to be repeatedly cleaned and used.

SUMMERY OF THE UTILITY MODEL

The utility model provides a disposable glass suction head which can easily go deep into a small-volume volumetric flask and a similar narrow-neck container, and solves the problems existing in the prior art.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

a disposable glass suction head comprises a tubular neck made of transparent glass, a middle cavity and a tail pipe; the two ends of the middle cavity are respectively provided with a neck part and a tail pipe which have the same axial structure.

As a preferred embodiment of the present invention, the neck, the middle chamber and the tail pipe are coaxial circular tubes, the outer diameter of the neck is smaller than that of the middle chamber, and the outer diameter of the neck is larger than that of the tail pipe; the two ends of the middle cavity and the neck and the tail pipe are respectively transited through cones.

As a preferable embodiment of the utility model, the wall thickness of the neck and the middle cavity is 1-2mm, and the wall thickness of the tail pipe is 0.2-0.4mm; the lengths of the neck, the middle cavity and the tail pipe are respectively 20-30mm, 40-60mm and 90-100mm; the inner diameters of the neck, the middle cavity and the tail pipe are respectively 4.5-6.5mm, 15-20mm and 0.5-2mm.

The utility model discloses a main beneficial effect includes: the structure is simple, the operation is convenient and fast, no pollution is caused, and the efficiency is high; the direct absorption of liquid in a volumetric flask with small volume and a container similar to a narrow neck can be realized, and the complexity and pollution of pouring the liquid are avoided; the pipette can be directly inserted below the liquid level of liquid in a volumetric flask with small volume and a container with similar thin neck, so that the failure of pipetting due to the fact that the liquid level cannot be touched because the conventional pipette tip is too short or too thick is avoided; is disposable, and avoids the investment in pollution and cleaning.

Drawings

Fig. 1 is an axial sectional view of the entire invention;

fig. 2 is an enlarged top view of fig. 1.

Description of reference numerals: 1-neck, 2-lumen, 3-tailpipe.

Detailed Description

The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become more apparent as the description proceeds. It is to be understood that the described embodiments are exemplary only, and are not intended as limitations on the scope of the invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications fall within the scope of the invention.

Referring to fig. 1 and 2, the disposable glass sucker of the present invention comprises a tubular neck 1 made of transparent glass, a middle chamber 2 and a tail pipe 3; a neck part 1 and a tail pipe 3 which are coaxial in structure are respectively arranged at two ends of the middle cavity 2.

The neck part 1, the middle cavity 2 and the tail pipe 3 are in the shape of coaxial circular tubes, the outer diameter of the neck part 1 is smaller than that of the middle cavity 2, and the outer diameter of the neck part 1 is larger than that of the tail pipe 3; the two ends of the middle cavity 2 and the neck 1 and the tail pipe 3 are respectively transited by cones. The taper of the cone is not limited and is generally between 30 and 60 degrees (the included angle between the conical surface and the axial direction).

The wall thickness of the neck part 1 and the middle cavity 2 is 1-2mm, and the wall thickness of the tail pipe 3 is 0.2-0.4mm; the lengths of the neck part 1, the middle cavity 2 and the tail pipe 3 are respectively 20-30mm, 40-60mm and 90-100mm; the inner diameters of the neck part 1, the middle cavity 2 and the tail pipe 3 are respectively 4.5-6.5mm, 15-20mm and 0.5-2mm.

The utility model discloses a typical specification does: the wall thickness of the neck part 1 and the middle cavity 2 is 1.2mm, and the wall thickness of the tail pipe 3 is 0.3mm; the lengths of the neck 1 (containing the cone), the middle cavity 2 (without the cone) and the tail pipe 3 (containing the cone) are respectively 30mm, 50mm and 90mm; the neck 1, the middle chamber 2 and the tail tube 3 have inner diameters of 5.5mm, 17.5mm and 1.2mm, respectively. The design capacity of this specification is about 10ml.

The utility model discloses a multiple specification can be set for according to the target volume to neck 1, lumen 2 and tail pipe 3, and lumen 2 can carry out size adjustment according to the design capacity, and tail pipe 3's length can be adjusted according to the big small form of target container.

The utility model discloses when using, neck 1 is connected liquid and is moved the kneck of getting the device, and under tail pipe 3 inserted the liquid level of waiting to get liquid, operation liquid moved the device and carry out liquid absorb can (liquid inhales in the lumen 2 from 3 north of tail pipe).

Claims

1. A disposable glass suction head is characterized in that: comprises a tubular neck part (1) made of transparent glass, a middle cavity (2) and a tail pipe (3); wherein, a neck part (1) and a tail pipe (3) which are coaxial in structure are respectively arranged at the two ends of the middle cavity (2).

2. The disposable glass pipette tip of claim 1 wherein: the neck (1), the middle cavity (2) and the tail pipe (3) are in the shape of a coaxial circular tube, the outer diameter of the neck (1) is smaller than that of the middle cavity (2), and the outer diameter of the neck (1) is larger than that of the tail pipe (3).

3. The disposable glass tip of claim 1 or 2, wherein: the two ends of the middle cavity (2) and the neck part (1) and the tail pipe (3) are respectively transited through cones.

4. The disposable glass tip of claim 2 wherein: the wall thickness of the neck (1) or the middle cavity (2) is 1-2mm, and the wall thickness of the tail pipe (3) is 0.2-0.4mm.

5. The disposable glass pipette tip of claim 2 wherein: the length of the neck (1), the middle cavity (2) or the tail pipe (3) is 20-30mm, 40-60mm and 90-100mm respectively.

6. The disposable glass tip of claim 2 wherein: the inner diameters of the neck (1), the middle cavity (2) or the tail pipe (3) are respectively 4.5-6.5mm, 15-20mm and 0.5-2mm.