CN212943013U - Auxiliary filtering device for test tube - Google Patents

Abstract

The utility model relates to a test tube auxiliary filtering device, which belongs to the technical field of experimental apparatus and solves the technical problem of taking small part small samples out of test tubes, the device comprises a plurality of filtering monomers, the filtering monomers are connected in sequence to form a fishbone-shaped flexible filtering chain, and the flexible filtering chain is arranged at the position of a tube opening on the inner wall of the test tube along the circumferential direction; the filtering single body is set to be in a right-angle corner shape and comprises a short arm and a long arm, the short arm is fixedly connected with the long arm, the length of the long arm is 1.5-3 times of the length of the short arm, and the wall thickness of the long arm and the wall thickness of the short arm are gradually thinned from the fixed connection position to the free end. The utility model discloses simple material, convenient, the high-efficient safety of low cost, plastics system difficult reaction, high efficiency with any reagent can select to filter free number in the flexible filter chain according to the model of test tube to corresponding adjustment filters free put position, accomplishes the harmless taking of little part in the test tube.

Description

Auxiliary filtering device for test tube

Technical Field

The utility model belongs to the technical field of experimental apparatus, concretely relates to auxiliary filter equipment of test tube.

Background

At present, small parts (such as magnetic beads, small pieces of tissues and the like) are frequently used in laboratories, and small part small specimens are usually soaked in test tubes containing preservation solution. However, when the small parts are taken out from the test tube, the small parts are adhered to the inner wall of the test tube by the surface tension of the liquid and are not easy to take out, so that the small parts need to be clamped out by using tweezers, and for small and soft specimens, if the small and soft specimens are to be taken out without damage while the liquid is not poured out, the small and soft specimens are almost impossible.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of existence among the prior art, solve the technical problem that the little sample of finding takes out from the test tube, the utility model provides a filter equipment is assisted to test tube.

The utility model discloses a following technical scheme realizes.

A test tube auxiliary filtering device comprises a plurality of filtering single bodies, wherein the filtering single bodies are sequentially connected to form a fishbone-shaped flexible filtering chain, and the flexible filtering chain is arranged at the position of a tube opening on the inner wall of a test tube along the circumferential direction; the filtering single body is set to be in a right-angle corner shape and comprises a short arm and a long arm, the short arm is fixedly connected with the long arm, the length of the long arm is 1.5-3 times of the length of the short arm, and the wall thickness of the long arm and the wall thickness of the short arm are gradually thinned from the fixed connection position to the free end.

Further, the number of the filtering monomers in the flexible filtering chain is selected according to the pipe diameter of the test tube.

Furthermore, the flexible filter chains are arranged in a circular ring shape in a head-to-tail connection mode.

Further, if the weight of the filter is light, the right-angle corner opening of the flexible filter chain faces to one side of the tube opening of the centrifugal tube, and if the weight of the filter is heavy, the right-angle corner opening of the flexible filter chain faces to one side in the centrifugal tube.

Further, if the test tube is large in size, the short arm is tightly attached to the inner wall of the test tube; if the test tube model is small, the long arm is tightly attached to the inner wall of the test tube.

Furthermore, the long arm and the short arm are both arranged to be isosceles triangles, and the side walls of the long arm and the short arm close to one side of the right-angle opening are arranged to be inwards concave V-shaped.

Further, the short arm and the long arm are in arc transition connection at the right-angle connection position.

Furthermore, the flexible filter chain is made of plastic.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a filter equipment is assisted to test tube, simple material, convenient, the low cost of operation, plastics system are difficult for reacting, high-efficient safety with any reagent, can select to filter free number in the flexible filter chain according to the model of test tube to corresponding adjustment filters free put position, accomplishes the harmless taking of little part in the test tube.

Drawings

FIG. 1 is a schematic perspective view of a flexible filter chain.

FIG. 2 is a schematic perspective view of a filtration monomer.

FIG. 3 is a schematic view of a filter unit.

Fig. 4 is a schematic top view of the filtering unit.

FIG. 5 is a schematic diagram of a side view of a filter element.

FIG. 6 is a perspective view of the flexible filter chain installed in a large test tube.

FIG. 7 is a perspective view of the flexible filter chain installed in a small test tube.

Fig. 8 is an exploded view of parts using a flexible filter chain to filter heavier specimens.

In the figure, 1 is a flexible filter chain, 2 is a short arm, and 3 is a long arm.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

The utility model discloses a following technical scheme realizes.

As shown in fig. 1 to 5, the auxiliary filtering device for test tubes comprises a plurality of filtering units, wherein the filtering units are sequentially connected to form a fishbone-shaped flexible filtering chain 1, and the flexible filtering chain 1 is installed at the position of a tube opening on the inner wall of the test tube along the circumferential direction; the filter unit is set to be in a right-angle corner shape and comprises a short arm 2 and a long arm 3, the short arm 2 is fixedly connected with the long arm 3, the length of the long arm 3 is 1.5-3 times of the length of the short arm 2, and the wall thickness of the long arm 3 and the wall thickness of the short arm 2 are gradually thinned from the fixed connection position to the free end.

Further, the number of the filtering monomers in the flexible filtering chain 1 is selected according to the pipe diameter of the test tube.

Furthermore, the flexible filter chains 1 are arranged end to end in a circular ring shape.

Further, if the weight of the filter is light, the right-angle corner opening of the flexible filter chain 1 faces to one side of the tube opening of the centrifugal tube, and if the weight of the filter is heavy, the right-angle corner opening of the flexible filter chain 1 faces to one side of the centrifugal tube.

Further, if the test tube is large in size, the short arm 2 is tightly attached to the inner wall of the test tube, and the long arm 3 points to the axis of the test tube, as shown in fig. 6; if the test tube is small, the long arm 3 is tightly attached to the inner wall of the test tube, and the short arm 2 points to the axis of the test tube, as shown in fig. 7.

Further, the long arm 3 and the short arm 2 are both arranged to be isosceles triangles, and the side walls of the long arm 3 and the short arm 2 close to one side of the right-angle opening are arranged to be inwards concave V-shaped.

Further, the short arm 2 and the long arm 3 are in arc transition connection at the right-angle connection position.

Further, the flexible filter chain 1 is made of plastic.

The utility model discloses a use as follows:

when the flexible filter chain is used, firstly, flexible filter chains 1 with different lengths are cut according to the pipe diameters of test tubes with different models, the flexible filter chains 1 comprise a plurality of filter monomers, and the flexible filter chains 1 are placed at the positions, close to pipe orifices, of the inner walls of the test tubes in an end-to-end connection mode; secondly, covering a tube cap on the tube orifice of the test tube, and inclining or inverting the test tube to enable parts or samples sinking at the bottom of the test tube to move to the position close to the tube orifice; thirdly, the test tube is placed rightly or the tube cap is placed obliquely upwards; finally, the tube cap is opened, and the required small specimen or small part can be blocked at the position of the tube opening by the flexible filter chain 1, so that the flexible filter chain is convenient to take out.

To heavier sample, then can be with the right angle corner opening of flexible filter chain 1 inside towards the pipe for when finding the palm on flexible filter chain 1 with little part, filter the monomer and press close to the effect that test tube pipe wall's one side played the auxiliary stay, as shown in fig. 8.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. The utility model provides a filter equipment is assisted to test tube which characterized in that: the device comprises a plurality of filtering single bodies, wherein the filtering single bodies are sequentially connected to form a fishbone-shaped flexible filtering chain (1), and the flexible filtering chain (1) is arranged at the position of a pipe orifice on the inner wall of a test tube along the circumferential direction; the filtering single body is set to be in a right-angle corner shape and comprises a short arm (2) and a long arm (3), the short arm (2) is fixedly connected with the long arm (3), the length of the long arm (3) is 1.5-3 times of the length of the short arm (2), and the wall thickness of the long arm (3) and the wall thickness of the short arm (2) are gradually thinned from the fixed connection position to the free end.

2. The cuvette auxiliary filter unit according to claim 1, wherein: the number of the filtering monomers in the flexible filtering chain (1) is selected according to the pipe diameter of the test tube.

3. A tube-assisted filtration device according to claim 1 or 2, characterized in that: the flexible filter chain (1) is arranged in an annular shape in an end-to-end connection mode.

4. A tube assisted filtration device according to claim 3, wherein: if filter thing light in weight, the right angle corner opening part of flexible filter chain (1) is towards centrifuging tube mouth of pipe one side, if filter thing heavy in weight, the right angle corner opening part of flexible filter chain (1) is towards one side in the centrifuging tube.

5. The cuvette auxiliary filter unit according to claim 4, wherein: if the test tube is large in model, the short arm (2) is tightly attached to the inner wall of the test tube; if the test tube is small in size, the long arm (3) is tightly attached to the inner wall of the test tube.

6. The cuvette auxiliary filter unit according to claim 1, wherein: the long arm (3) and the short arm (2) are both arranged to be isosceles triangles, and the side wall of one side, close to the right-angle opening, of the long arm (3) and the short arm (2) is arranged to be an inwards-concave V-shaped shape.

7. A cuvette auxiliary filter unit according to claim 1 or 6, wherein: and the short arm (2) is in arc transition connection with the long arm (3) at the right-angle connection position.

8. The cuvette auxiliary filter unit according to claim 1, wherein: the flexible filter chain (1) is made of plastic.

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