CN211215640U

CN211215640U - Novel detachable buchner funnel

Info

Publication number: CN211215640U
Application number: CN201921852089.9U
Authority: CN
Inventors: 王燕燕
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-11
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a novel can dismantle buchner funnel belongs to chemistry experiment room instrument field, contains casing, lower casing, packing ring, it comprises column structure one, connection position one to go up the casing, the casing comprises filter disc, connection position two, column structure two, back taper structure, column structure three down, and the upper end that column structure is three is equipped with the back taper structure, and the upper end of back taper structure is equipped with column structure two, and two upper ends boss departments of column structure are equipped with connection position two, and two upper ends of connection position are equipped with the filter disc, are equipped with on the filter disc and run through and evenly distributed's filtration pore from top to bottom, and along being equipped with connection position one in the column structure lower extreme. The novel Buchner funnel combines the upper shell and the lower shell together to form a complete Buchner funnel, and has the advantage of convenient disassembly; after the experiment is finished, the upper shell and the lower shell are disassembled, and the filter cake is completely exposed on the filter disc and can be conveniently taken out; convenient to use, practicality are stronger, are fit for using widely on a large scale.

Description

Novel detachable buchner funnel

Technical Field

The utility model belongs to the technical field of chemical experiment instrument, concretely relates to novel can dismantle buchner funnel.

Background

Buchner funnels are ceramic instruments used in chemical laboratories, also made of plastic, and usually constitute a suction filtration device with a vacuum pump and a suction flask, for filtration using vacuum or negative pressure suction. In use, the filter paper is generally first padded on the bottom surface of the cylinder, the funnel is inserted into the upper opening of the buchner flask and the mouthpiece is sealed (e.g. with a rubber ring), and the side port of the buchner flask is connected to an air pumping system. The solid, liquid mixture to be separated is then poured onto the top and the liquid component is drawn into the beaker under negative pressure, leaving the solid on top.

However, general buchner funnel is the integral type structure, and the filter cake in buchner funnel after the suction filtration can only be scraped out with medicine spoon or medicine shovel, and the operation is inconvenient, and transfer process is very easy to introduce impurity moreover, therefore can cause the influence to the experimental result.

Disclosure of Invention

An object of the utility model is to provide a neotype buchner funnel dismantled to prior art's defect and not enough, can conveniently shift the filter cake that obtains after the suction filtration.

In order to solve the problem that the background art exists, the utility model discloses a novel can dismantle buchner funnel contain casing, lower casing, packing ring, it comprises column structure one, connection position one to go up the casing, the casing comprises filter disc, connection position two, column structure two, back taper structure, column structure three down, and the upper end of column structure three is equipped with back taper structure, and back taper structure's upper end is equipped with column structure two, and two upper end boss departments of column structure are equipped with connection position two, and two edges in connection position are equipped with the packing ring, and two upper ends in connection position are equipped with the filter disc, run through and evenly distributed's filtration pore from top to bottom on the filter disc, along being equipped with connection position one in the column structure lower extreme.

As an optimized technical scheme of the utility model, connection position one adopts threaded connection with connection position two.

As an optimized technical scheme of the utility model, last casing and lower casing adopt plastics, metal or pottery to make, make simply, with low costs, durable.

As an optimized technical scheme of the utility model, the packing ring adopt the rubber material to ensure the leakproofness that the device connects.

As an optimized technical scheme of the utility model, filter disc diameter equal the internal diameter of columnar structure one to in better agreeing with between the two, guaranteed the leakproofness.

As an optimized technical scheme of the utility model, three lower extremes of columnar structure be the export of inclined, the filtrating of being convenient for flows down, also convenient and air bottle be connected.

The utility model discloses beneficial effect does: the novel Buchner funnel combines the upper shell and the lower shell together to form a complete Buchner funnel, and has the advantage of convenient disassembly; after the experiment is finished, the upper shell and the lower shell are disassembled, and the filter cake is completely exposed on the filter disc, so that the filter cake can be taken out very conveniently; convenient to use, practicality are stronger, are fit for using widely on a large scale.

Drawings

Fig. 1 is an exploded view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a top view of the lower housing of the present invention.

Fig. 4 is a partial enlarged view of the point i in fig. 2.

Description of reference numerals:

1. the filter comprises an upper shell, 2 parts of a lower shell, 3 parts of a gasket, 11 parts of a columnar structure I, 12 parts of a connecting part I, 21 parts of a filter disc, 22 parts of filter holes, 23 parts of a connecting part II, 24 parts of a columnar structure II, 25 parts of an inverted cone structure and 26 parts of a columnar structure III.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the following technical solutions are adopted in the present embodiment: the utility model provides a novel can dismantle buchner funnel contains casing 1, casing 2, packing ring 3 down, go up casing 1 by column structure 11, connect position 12 and constitute, casing 2 comprises filter disc 21, connect position two 23, two 24, back taper structure 25, three 26 of column structure down, and the upper end of three 26 of column structure is equipped with back taper structure 25, and the upper end of back taper structure 25 is equipped with column structure two 24, and two 24 upper ends boss departments of column structure are equipped with connects position two 23, and connect position two 23 edges and be equipped with packing ring 3, connect position two 23 upper ends and be equipped with filter disc 21, are equipped with on the filter disc 21 and run through and evenly distributed's filtration pore 22 from top to bottom, and the edge is equipped with and connects position one 12 in the 11 lower extremes of column structure.

The first connecting part 12 and the second connecting part 23 are in threaded connection.

The upper shell 1 and the lower shell 2 are made of plastics, metal or ceramics, and are simple to manufacture, low in cost and durable.

The gasket 3 is made of rubber so as to ensure the sealing property of the device connection.

The diameter of the filter disc 21 is equal to the inner diameter of the first columnar structure 11, so that the filter disc and the first columnar structure are better matched, and the sealing performance of the device combination is guaranteed.

The lower end of the third cylindrical structure 26 is provided with an inclined outlet, so that filtrate can flow down conveniently and can be connected with an air bottle conveniently.

The utility model discloses a theory of operation: firstly, the gasket 3 is placed on a boss of the second cylindrical structure 24, the first connecting part 11 and the second connecting part 24 are screwed, the upper shell 1 and the lower shell 2 are assembled into a whole, a filter flask is connected, then a piece of filter paper is flatly laid on the filter disc 21, the filter paper is wetted, a required suction filtration substance is poured into a funnel for suction filtration, after the suction filtration is finished, the upper shell 1 is held by one hand, the third cylindrical structure 26 is held by the other hand, the upper shell 1 and the lower shell 2 are screwed and disassembled, and at the moment, a filter cake on the filter disc 21 is completely exposed on the surface.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel can dismantle buchner funnel, contains casing, lower casing, packing ring, its characterized in that: go up the casing by column structure one, connect position one and constitute, the casing comprises filter disc, connection position two, column structure two, back taper structure, column structure three down, and the upper end of column structure three is equipped with back taper structure, and the upper end of back taper structure is equipped with column structure two, and two upper end bosss of column structure department are equipped with connection position two, and two edges in connection position are equipped with the packing ring, and two upper ends in connection position are equipped with the filter disc, are equipped with on the filter disc to run through and evenly distributed's filtration pore from top to bottom, and the edge is equipped with connection position one in the column structure lower extreme.

2. The new detachable buchner funnel of claim 1, wherein: the first connecting part and the second connecting part are in threaded connection.

3. The new detachable buchner funnel of claim 1, wherein: the upper shell and the lower shell are made of plastics, metals or ceramics.

4. The new detachable buchner funnel of claim 1, wherein: the gasket is made of rubber.

5. The new detachable buchner funnel of claim 1, wherein: the diameter of the filter disc is equal to the inner diameter of the first columnar structure.

6. The new detachable buchner funnel of claim 1, wherein: the lower end of the columnar structure is an inclined outlet.