CN211836578U

CN211836578U - Funnel for molecular biological experiment

Info

Publication number: CN211836578U
Application number: CN202020105599.6U
Authority: CN
Inventors: 雷良伟
Original assignee: Jiangxi Kexing Biological Engineering Co ltd
Current assignee: Jiangxi Kexing Biological Engineering Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-11-03
Anticipated expiration: 2030-01-17

Abstract

The utility model provides a funnel for molecular biological experiments, wherein a pouring nozzle and an air duct are concavely arranged on one side of a funnel body, the pouring nozzle is higher than the funnel body, one side of the air duct is movably connected with a prompting rod, a fixed cover body is arranged at the joint of the funnel body and a funnel tube, the upper end of the fixed barrel is detachably connected with the fixed cover body, and the lower end of the funnel tube passes through the fixed cover body and extends into the fixed barrel; the filter unit sets up in the funnel is originally internal, constitutes fluid passage between filter unit lateral wall and the funnel body inner wall, is equipped with the bottom bearing surface in the filter unit, and the pull rod lower extreme is fixed through the bottom bearing surface, and pull rod upper portion extends to the filter unit opening part. The utility model provides a have air or filter paper direct paste to apply and cause the slower problem of filter speed at the funnel inner wall in the funnel, be equipped with bottom bearing surface in the filter unit, realize filter unit's change through the pull rod, simple structure conveniently stands, places, and the practicality is stronger.

Description

Funnel for molecular biological experiment

Technical Field

The utility model belongs to the technical field of biological test equipment, specifically, relate to a funnel for molecular biology experiments.

Background

Molecular biology is a science that studies life phenomena, essence of life, life activities and their laws from the molecular level. Molecular biology is the science of studying the structure and function of biological macromolecules at the molecular level to elucidate the nature of life phenomena. Since the 50 s of the 20 th century, molecular biology has been the leading edge and growth point of biology, and its major research fields include protein systems, protein-nucleic acid systems, and protein-lipid systems.

The study of the structural function of biological macromolecules, in particular proteins and nucleic acids, is the basis of molecular biology. The application of modern chemical and physical theories, techniques and methods has promoted the study of biomacromolecule structure functions, thus leading to the vigorous development of molecular biology.

Molecular biology experiment belongs to microscopic test, often will use experimental facilities such as funnel to operate, and funnel among the prior art generally can not realize standing alone, need fix with test-tube rack or funnel stand, and when empting liquid, the condition of liquid follow funnel border seepage often can appear takes place. When filtering, the filter paper is because attached on the funnel inner wall, perhaps there is air funnel pipe department, causes liquid descent speed slower, seriously influences the filter effect, filters the back filter paper inconvenient change that finishes yet.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problem who exists among the above prior art, the utility model provides a funnel for molecular biology experiments has solved in the funnel have air or filter paper directly to paste and apply and cause the slower problem of filter speed at the funnel inner wall, is equipped with bottom bearing surface in the filter unit, realizes filter unit's change through the pull rod, simple structure, conveniently stands, places, and the practicality is stronger.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a funnel for molecular biological experiments comprises a funnel body, wherein the lower part of the funnel body is connected with a funnel tube, one side of the funnel body is concavely provided with a pouring nozzle and an air guide tube, the pouring nozzle is higher than the funnel body, the air guide tube is a hollow tube, the upper end of the air guide tube is higher than the funnel body, the lower end of the air guide tube extends to the lower end of the funnel tube, one side of the air guide tube is movably connected with a prompt rod, a fixed cover body is arranged at the joint of the funnel body and the funnel tube, the upper end of a fixed barrel is detachably connected with the fixed cover body, the fixed barrel is of a structure with an opening at the upper end and a; the funnel body inner wall is equipped with a plurality of supporting shoes, and the filter part setting constitutes fluid passage between filter part lateral wall and the funnel body inner wall at this internal, is equipped with the bottom bearing surface in the filter part, and the pull rod lower extreme is fixed through the bottom bearing surface, and pull rod upper portion extends to the filter part opening part, and the pull ring is connected on pull rod upper portion.

Preferably, the upper end of the prompting rod is fixed on one side of the air guide tube through an L-shaped hook, the prompting rod is of a hollow barrel-shaped structure, the upper end and the lower end of the prompting rod are of a closed structure, and the prompting rod is made of polyethylene plastic materials.

In any of the above schemes, preferably, the central position of the upper end of the fixed cover body is provided with a socket, and the lower end of the funnel pipe passes through the socket and extends to the lower part.

The fixed cover body is provided with internal threads, and the fixed barrel is provided with external threads matched with each other.

In any of the above embodiments, preferably, the support block is at least one of a circle, a triangle, and a polygon.

In any of the above embodiments, preferably, the filter member is a conical filter barrel.

In any of the above schemes, preferably, the supporting blocks are radially distributed on the inner wall of the funnel body at intervals.

The utility model has the advantages that:

the utility model provides a funnel for molecular biological experiments, funnel body sub-unit connection funnel pipe, funnel body one side sunken to be provided with pours mouth and air duct, pours the height of mouth and is higher than the funnel body, and the air duct is the hollow tube, and the upper end of air duct is higher than the funnel body, and the lower extreme of air duct extends to the funnel pipe lower extreme, and one side swing joint of air duct has the suggestion pole, funnel body and funnel pipe junction are equipped with fixed lid, and fixed bucket upper end and fixed lid can be dismantled and be connected, and fixed bucket is upper end opening lower extreme enclosed construction, and the lower extreme of funnel pipe passes fixed lid and extends to in the fixed bucket; the funnel body inner wall is equipped with a plurality of supporting shoes, and the filter part setting constitutes fluid passage between filter part lateral wall and the funnel body inner wall at this internal, is equipped with the bottom bearing surface in the filter part, and the pull rod lower extreme is fixed through the bottom bearing surface, and pull rod upper portion extends to the filter part opening part, and the pull ring is connected on pull rod upper portion. The utility model provides a have air or filter paper direct paste to apply and cause the slower problem of filter speed at the funnel inner wall in the funnel, be equipped with bottom bearing surface in the filter unit, realize filter unit's change through the pull rod, simple structure conveniently stands, places, and the practicality is stronger.

Drawings

FIG. 1 is an external schematic view of the overall structure of a preferred embodiment of a funnel for molecular biology experiments according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1;

FIG. 3 is another partial schematic view of FIG. 1;

FIG. 4 is another partial schematic view of FIG. 1;

fig. 5 is an enlarged view of a part of the structure of fig. 1.

Wherein, the meaning of each reference number in the figure is as follows:

1. funnel body, 2, funnel pipe, 3, pouring spout, 4, air duct, 5, suggestion pole, 6, fixed lid, 61, interface, 7, fixed bucket, 8, supporting shoe, 9, filter part, 10, fluid passage, 11, pull rod, 12, pull ring, 13, L shape couple.

Detailed Description

In order to make the contents of the present invention more clearly understood, the following description and the accompanying drawings are further described and explained.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

A funnel for molecular biology experiments is shown in figures 1-3 and comprises a funnel body 1, wherein the lower portion of the funnel body 1 is connected with a funnel pipe 2, and a pouring nozzle 3 and an air duct 4 are arranged on one side of the funnel body 1 in a concave mode. Specifically, the pouring spout 3 is higher than the funnel body 1 at the upper portion thereof. The air duct 4 is a hollow tube, the upper end of the air duct 4 highly extends to the upper part of the funnel body 1, and the lower part of the air duct 4 is tightly attached to the inner wall of the funnel tube 2.

The lower extreme of air duct 4 extends to 2 lower extreme openings of funnel pipe, and in addition, one side swing joint of air duct 4 has suggestion pole 5, and suggestion pole 5 is used for the suggestion liquid whether will fill up soon. When the air guide tube is specifically arranged, the upper end of the prompting rod 5 is fixed on one side of the air guide tube 4 through the L-shaped hook 13, as shown in fig. 5. The prompting rod 5 is hollow, the upper end and the lower end of the prompting rod are of a closed structure, and the prompting rod 5 is made of polyethylene plastic materials, so that the lower portion of the prompting rod can be in contact with liquid, the L-shaped hook 13 quickly floats after being separated from the air guide tube 4, and the prompting liquid is filled to prevent overflowing.

Funnel body

1 and 2 junctions of funnel pipe are equipped with fixed lid 6, and the connection can be dismantled to fixed 7 upper ends of bucket and fixed lid 6, and fixed bucket 7 is upper end opening lower extreme enclosed construction, and the lower extreme of funnel pipe 2 passes fixed lid 6 and extends to in the fixed bucket 7 to stand with the help of fixed bucket 7 realization, convenient operation or storage etc.. Specifically, the fixed cover body 6 is provided with an internal thread, and the fixed barrel 7 is provided with an external thread which is matched with each other, so that the threaded connection is realized. The central position of the upper end of the fixed cover 6 is provided with a plug-in port 61, as shown in fig. 4, the lower end of the funnel pipe 2 passes through the plug-in port 61 and extends into the fixed barrel 7 at the lower part.

The inner wall of the funnel body 1 is provided with a plurality of supporting blocks 8, and the supporting blocks 8 are distributed on the inner wall of the funnel body 1 in a radial interval mode, so that the supporting effect can be achieved, and liquid can not be prevented from flowing downwards. The supporting block 8 is at least one of a circle, a triangle and a polygon.

The filter element 9 is arranged in the funnel body 1, and due to the action of the supporting block 8, the side wall of the filter element 9 is not attached to the funnel body 1. A fluid channel 10 is formed between the side wall of the filtering component 9 and the inner wall of the funnel body 1, and liquid continues to flow downwards through the fluid channel 10 after being filtered by the filtering component 9, so that the filtering speed is increased.

The filter component 9 is a conical filter barrel and is a finished product structure made of filter paper. A bottom bearing surface 91 is arranged in the filtering component 9, and the bottom bearing surface 91 is a horizontal plane. The lower end of the pull rod 11 is fixed by a bottom bearing surface 91, which can be fixedly connected or the bottom end of the pull rod 11 is fixed by a fixing clip. 11 upper portions of pull rod extend to the opening part of filter element 9, and pull ring 12 is connected on 11 upper portions of pull rod, and when filter element 9 need be changed, the hand directly stimulates pull ring 12 and can realize pulling out filter element 9 rapidly, and is convenient, swift, high-efficient.

The utility model provides an in the funnel 2 have air or filter paper direct paste to apply and cause a plurality of problems such as filter speed is slower at the funnel inner wall, be equipped with bottom bearing surface 91 in the filter unit 9, realize filter unit's change through pull rod 11, pull ring 12, the practicality is stronger.

It should be noted that the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A funnel for molecular biological experiments comprises a funnel body (1), wherein the lower part of the funnel body (1) is connected with a funnel pipe (2), it is characterized in that one side of the funnel body (1) is concavely provided with a pouring nozzle (3) and an air duct (4), the height of the pouring nozzle (3) is higher than that of the funnel body (1), the air duct (4) is a hollow tube, the upper end of the air duct (4) is higher than that of the funnel body (1), the lower end of the air duct (4) extends to the lower end of the funnel tube (2), one side of the air duct (4) is movably connected with a prompt rod (5), a fixed cover body (6) is arranged at the joint of the funnel body (1) and the funnel tube (2), the upper end of the fixed barrel (7) is detachably connected with the fixed cover body (6), the fixed barrel (7) is of a structure with an upper end open and a lower end closed, and the lower end of the funnel tube (2) penetrates through the fixed cover body (6) and extends into the fixed barrel (7); funnel body (1) inner wall is equipped with a plurality of supporting shoes (8), and filter element (9) set up in funnel body (1), constitute fluid passage (10) between filter element (9) lateral wall and funnel body (1) inner wall, are equipped with bottom bearing surface (91) in filter element (9), and pull rod (11) lower extreme is fixed through bottom bearing surface (91), and pull rod (11) upper portion extends to filter element (9) opening part, and pull ring (12) are connected on pull rod (11) upper portion.

2. The funnel for molecular biology experiments according to claim 1, wherein the upper end of the prompting rod (5) is fixed at one side of the air duct (4) through an L-shaped hook (13), the prompting rod (5) is of a hollow barrel-shaped structure, the upper end and the lower end of the prompting rod (5) are both of a closed structure, and the prompting rod (5) is made of polyethylene plastic materials.

3. The funnel for molecular biology experiments as claimed in claim 1, wherein the fixed cover (6) is provided with a socket (61) at the center of the upper end, and the lower end of the funnel tube (2) extends to the lower part through the socket (61).

4. The funnel for molecular biology experiments according to claim 3, wherein the fixed cover (6) is provided with internal threads, and the fixed barrel (7) is provided with external threads matching with each other.

5. The funnel for molecular biology experiments according to claim 1, wherein the supporting block (8) is at least one of circular, triangular and polygonal.

6. The funnel for molecular biology experiments according to claim 1, wherein the filtering component (9) is a cone-shaped filtering barrel.

7. The funnel for molecular biology experiments according to claim 5, wherein the plurality of supporting blocks (8) are radially spaced on the inner wall of the funnel body (1).