Chemical filter

Abstract

The utility model relates to the technical field of chemical filtration, and discloses a chemical filter which comprises a suction flask, a filter assembly is detachably arranged at an opening of the suction flask and comprises a first filter body and a second filter body, the first filter body is inserted into the opening of the suction flask, the second filter body is connected with the first filter body in an inserted mode, and the second filter body is connected with the suction flask. The first filter body forms a funnel-shaped structure, the second filter body forms a cylinder structure with a sealed bottom and filter holes, when gravity filtration is needed in an experiment, a smaller port of the first filter body is inserted into an opening of a suction flask, filter paper is laid on the inner wall surface of the first filter body, and liquid is poured into the first filter body and filtered by the filter paper under the action of gravity; when suction filtration is needed, the second filter body can be connected with the first filter body in a sleeving mode, filter paper is laid at the bottom of the second filter body, suction filtration is achieved, the use mode is more flexible, adaptability is higher, and experiments are more facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical filtration, in particular to a chemical filter. Background Art

[0002] Buchner funnel and suction flask are commonly used instruments in laboratories. They are mainly used in the separation step of solid-liquid mixtures. They can be used to filter using vacuum or negative pressure suction to separate solids and liquids and collect them separately. They are often used to extract crystals in chemical experiments.

[0003] The prior art discloses a detachable multifunctional filter for chemical experiments (CN202120619412.9), which includes: a funnel body, a baffle, a rubber stopper, a glass neck, a suction filter bottle, a filter component one, a filter component two main body, and a filter component two fixing device. There are scale lines on the funnel body, and the funnel body is connected to the suction filter bottle through the rubber stopper; the baffle is horizontally arranged between the lower inner walls of the funnel body; a small opening is opened in the rubber stopper; the glass neck is led out from the suction filter bottle; there are scale lines on the suction filter bottle; an external buckle is arranged on the upper side of the filter component one, and a small hole is opened at the bottom; an external buckle is arranged on the upper side of the filter component two main body; and a hole is opened in the middle of the filter component two fixing device.

[0004] In the prior art, two split filter bodies are provided and different filter bodies are installed with suction bottles to achieve gravity filtration or suction filtration. In the actual experimental process, the installation of multiple components limits the convenience of switching between the two filtration methods. There are many overall components, which creates a burden on cleaning, maintenance and storage after the experiment, and there is room for optimization.

[0005] For this purpose, we propose a chemical filter. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a chemical filter.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a chemical filter, including a suction filter bottle, a filter assembly is detachably provided at the opening of the suction filter bottle, the filter assembly includes a first filter body and a second filter body, the first filter body is inserted into the opening of the suction filter bottle, the second filter body is plugged into the first filter body, the first filter body forms a funnel-shaped structure, and the second filter body forms a cylindrical structure with a bottom seal and filter holes.

[0008] As a preferred embodiment of the present invention, the filter assembly further comprises a retaining ring, the retaining ring is fixedly connected to the first filter body, and the second filter body is plugged into the first filter body via the retaining ring.

[0009] As a preferred embodiment of the present invention, the filter assembly further comprises side ears, the side ears are fixedly connected to the first filter body, and the side ears form protrusions on the edges of the first filter body for holding.

[0010] As a preferred embodiment of the present invention, the filter assembly further comprises a convex rib, the convex rib is fixedly connected to the second filter body, and the convex rib is sleeved with a retaining ring.

[0011] As a preferred embodiment of the present invention, the retaining ring is located on the upper end surface of the first filter body and is integrally formed with the first filter body, and the convex rib is located on the bottom of the second filter body and is integrally formed with the second filter body.

[0012] As a preferred embodiment of the present invention, the retaining ring and the convex rib are both circular ring structures, and the outer diameter of the retaining ring is equal to the inner diameter of the convex rib.

[0013] As a preferred embodiment of the utility model, the filter assembly also includes a filter plate, which is detachably arranged in the second filter body cavity, and the wall surface of the filter plate is evenly provided with circular holes. The second filter body and the filter plate together form a cylindrical structure with a bottom seal and filter holes.

[0014] As a preferred embodiment of the present invention, the inner wall surface of the second filter body is provided with an integrally formed rib, and the filter plate is placed on the top of the rib.

[0015] Beneficial Effects

[0016] The utility model provides a chemical filter having the following beneficial effects:

[0017] 1. A chemical filter, the wall surface of the suction filtration bottle is provided with an integrally formed extension tube, the extension tube is connected to the chamber of the suction filtration bottle and is used to connect to a vacuum pump to evacuate the chamber of the suction filtration bottle. When the experiment requires gravity filtration, the smaller port of the first filter body is inserted into the opening of the suction filtration bottle, filter paper is laid on the inner wall surface of the first filter body, liquid is poured into the first filter body and filtered by the filter paper through gravity, the filter slurry is collected in the suction filtration bottle, and the filter residue is collected on the surface of the filter paper. When suction filtration is required, the second filter body can be sleeved with the first filter body, filter paper is laid on the bottom of the second filter body, and the filtrate is poured into the cavity of the second filter body to achieve suction filtration. The filter has a more flexible way of use, is more adaptable, is more conducive to the experiment, and has a streamlined overall structure, which is easy to assemble and store.

[0018] 2. This chemical filter, by setting a retaining ring, when the second filter body is sleeved with the first filter body, the first filter body is first placed in the opening of the suction bottle, and then the second filter body is dropped, the convex rib is stuck on the outside of the retaining ring, and the contact surface between the convex rib and the retaining ring can be polished to form a frosted surface, so that the first filter body and the second filter body can be easily disassembled and assembled, the assembly is quick, the operation is easy, and the second filter body and the first filter body have good sealing after being clamped together, and are not easy to leak.

[0019] 3. This chemical filter, by providing a detachable filter plate, can remove the entire filter plate after filtration, and then remove the filter paper laid on the top of the filter plate together with the filter residue, which has the characteristic of being easy to remove the filter residue. Compared with directly tearing off the filter paper from the bottom of the second filter body, it can reduce the defect of the filter paper sticking to the bottom of the second filter body when removing the filter paper, and at the same time, it is convenient to clean the equipment after the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of the suction filter bottle of the utility model;

[0021] Figure 2 This is a three-dimensional diagram of the first filter body of the utility model;

[0022] Figure 3 This is a three-dimensional diagram of the second filter body of the utility model;

[0023] Figure 4 This is one of the overall three-dimensional diagrams of the utility model;

[0024] Figure 5 This is the second overall stereogram of the utility model.

[0025] Legend: 10, suction bottle; 20, first filter body; 21, retaining ring; 22, side ear; 30, second filter body; 31, convex rib; 32, filter plate. DETAILED DESCRIPTION

[0026] A chemical filter, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, it includes a suction filter bottle 10, and a filter assembly is detachably provided at the opening of the suction filter bottle 10, and the filter assembly includes a first filter body 20 and a second filter body 30. The first filter body 20 is inserted into the opening of the suction filter bottle 10, and the second filter body 30 is plugged into the first filter body 20. The first filter body 20 forms a funnel-shaped structure, and the second filter body 30 forms a cylindrical structure with a bottom seal and filter holes. In this solution, an integrally formed extension tube is provided on the wall surface of the suction filter bottle 10, and the extension tube is connected to the chamber of the suction filter bottle 10 for connecting to a vacuum pump to evacuate the chamber of the suction filter bottle 10. When the experiment requires gravity filtration, the smaller port of the first filter body 20 is inserted into the opening of the suction bottle 10, and filter paper is laid on the inner wall of the first filter body 20. The liquid is poured into the first filter body 20 and filtered by the filter paper through gravity. The filter slurry is collected in the suction bottle 10, and the filter residue is collected on the surface of the filter paper. When suction filtration is required, the second filter body 30 can be sleeved with the first filter body 20, and filter paper is laid on the bottom of the second filter body 30. The filtrate is poured into the cavity of the second filter body 30 to achieve suction filtration. It has a more flexible usage method, stronger adaptability, and is more conducive to the experiment.

[0027] like Figure 2 As shown, the filter assembly also includes a side ear 22, which is fixedly connected to the first filter body 20. The side ear 22 forms a protrusion for holding on the edge of the first filter body 20. By setting the side ear 22, the side ear 22 is semicircular, and the first filter body 20 can be placed or removed by pinching the side ear 22, which has the characteristic of being easy to hold.

[0028] like Figure 2 and Figure 3 As shown, the filter assembly also includes a retaining ring 21, which is fixedly connected to the first filter body 20, and the second filter body 30 is plugged into the first filter body 20 through the retaining ring 21. The filter assembly also includes a convex rib 31, which is fixedly connected to the second filter body 30, and the convex rib 31 is sleeved with the retaining ring 21. The retaining ring 21 is located on the upper end surface of the first filter body 20 and is integrally formed with the first filter body 20. The convex rib 31 is located at the bottom of the second filter body 30 and is integrally formed with the second filter body 30. The retaining ring 21 and the convex rib 31 are both annular structures. The outer diameter of the ring 21 is equal to the inner diameter of the convex rib 31. By setting the retaining ring 21, when the second filter body 30 is sleeved with the first filter body 20, the first filter body 20 is first placed in the opening of the suction bottle 10, and then the second filter body 30 is dropped. The convex rib 31 is stuck on the outside of the retaining ring 21. The contact surface between the convex rib 31 and the retaining ring 21 can be polished to form a frosted surface, so that the first filter body 20 and the second filter body 30 can be easily disassembled and assembled. The assembly is quick and the operation is easy. After the second filter body 30 and the first filter body 20 are clamped, the sealing is good and it is not easy to leak.

[0029] like Figure 3As shown, the filter assembly also includes a filter plate 32, which is detachably arranged in the cavity of the second filter body 30. The wall surface of the filter plate 32 is evenly provided with circular holes. The second filter body 30 and the filter plate 32 together form a cylindrical structure with a bottom seal and filter holes. The inner wall surface of the second filter body 30 is provided with an integrally formed rib, and the filter plate 32 is placed on the top of the rib. By providing a detachable filter plate 32, after filtration, the entire filter plate 32 can be removed, and then the filter paper laid on the top surface of the filter plate 32 can be removed together with the filter residue, which has the characteristic of facilitating the removal of the filter residue. Compared with directly tearing off the filter paper from the bottom of the second filter body 30, when removing the filter paper, the defect of the filter paper being difficult to tear off due to the filter paper sticking to the bottom of the second filter body 30 can be reduced. At the same time, it is convenient to clean the equipment after the experiment.

[0030] The working principle of the utility model is as follows: when the second filter body 30 is sleeved with the first filter body 20, the first filter body 20 is first placed in the opening of the suction filter bottle 10, and then the second filter body 30 is dropped, and the convex rib 31 is stuck on the outside of the retaining ring 21. The contact surface of the convex rib 31 and the retaining ring 21 can be polished to form a frosted surface, so that the first filter body 20 and the second filter body 30 can be easily disassembled and assembled. When the experiment requires gravity filtration, the smaller port of the first filter body 20 is inserted into the opening of the suction filter bottle 10, and filter paper is laid on the inner wall of the first filter body 20. The liquid is poured into the first filter body 20 and filtered by the filter paper through gravity. The filter slurry is collected in the suction filter bottle 10, and the filter residue is collected on the surface of the filter paper. When suction filtration is required, the second filter body 30 can be sleeved with the first filter body 20. It has two usage modes of gravity filtration and suction filtration.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A chemical filter, comprising a suction filtration bottle (10), characterized in that: A filter assembly is detachably provided at the opening of the suction filter bottle (10), and the filter assembly comprises a first filter body (20) and a second filter body (30). The first filter body (20) is inserted into the opening of the suction filter bottle (10), and the second filter body (30) is plugged into the first filter body (20). The first filter body (20) forms a funnel-shaped structure, and the second filter body (30) forms a cylindrical structure with a sealed bottom and filter holes.

2. The chemical filter according to claim 1, characterized in that: The filter assembly further comprises a retaining ring (21), wherein the retaining ring (21) is fixedly connected to the first filter body (20), and the second filter body (30) is plugged into the first filter body (20) via the retaining ring (21).

3. The chemical filter according to claim 1, characterized in that: The filter assembly further comprises a side ear (22), wherein the side ear (22) is fixedly connected to the first filter body (20), and the side ear (22) forms a protrusion for holding on the edge of the first filter body (20).

4. The chemical filter according to claim 2, characterized in that: The filter assembly further comprises a convex rib (31), wherein the convex rib (31) is fixedly connected to the second filter body (30), and the convex rib (31) is sleeved with the retaining ring (21).

5. The chemical filter according to claim 4, characterized in that: The retaining ring (21) is located on the upper end surface of the first filter body (20) and is integrally formed with the first filter body (20), and the convex rib (31) is located on the bottom of the second filter body (30) and is integrally formed with the second filter body (30).

6. The chemical filter according to claim 4, characterized in that: The retaining ring (21) and the convex rib (31) are both circular ring structures, and the outer diameter of the retaining ring (21) is equal to the inner diameter of the convex rib (31).

7. The chemical filter according to claim 1, characterized in that: The filter assembly further comprises a filter plate (32), which is detachably arranged in the cavity of the second filter body (30), and the wall surface of the filter plate (32) is evenly provided with circular holes, and the second filter body (30) and the filter plate (32) together form a cylindrical structure with a sealed bottom and filter holes.

8. The chemical filter according to claim 7, characterized in that: The inner wall surface of the second filter body (30) is provided with an integrally formed rib, and the filter plate (32) is placed on the top of the rib.

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