CN204319880U - Novel Buchner funnel - Google Patents

Abstract

The utility model discloses a novel Buchner funnel, which comprises two parts: a bucket body and a pipe body, wherein the bucket body is composed of an outer wall layer and a filter layer, the upper edge of the outer wall layer is sealed and connected with the upper edge of the filter layer, and the outer wall layer is connected with the upper edge of the filter layer. The filter layer has a hollow structure; the lower end of the outer wall layer is open and connected with the pipe body, and the lower end of the filter layer is closed into a point; the middle and lower parts of the filter layer are evenly distributed with a number of small holes. The utility model has a simple structure, and because the filter layer protects the filter paper, it effectively solves the problem that the filter paper is easily damaged by direct suction filtration of the triangular funnel; because the filter layer is an inverted cone, it is convenient to collect filter products and can be used for rapid quantitative filtration.

Description

New Buchner Funnel

technical field

The utility model relates to the field of chemical analysis, in particular to a laboratory filter funnel.

Background technique

In chemical analysis, quantitative filtration of solutions is often required to accurately determine the content of filtered products. However, in the existing funnels, the triangular funnel has a very slow filtration speed, and quantitative filtration mostly uses slow quantitative filter paper, which makes the filtration speed even slower, and the triangular funnel is not suitable for suction filtration, because if it is directly used for suction filtration, the high pressure difference It is easy to cause damage to the filter paper; although the traditional Buchner funnel has a fast filtering speed, because the filtering surface is flat, the filtered product cannot be completely collected and cannot be used for quantitative filtration.

Contents of the invention

The purpose of the utility model is to provide a novel Buchner funnel, which can quickly carry out quantitative filtration.

In order to solve the above-mentioned technical problems, the technical solution adopted in the utility model is: a new Buchner funnel, including two parts of the bucket body and the pipe body, wherein the bucket body is composed of an outer wall layer and a filter layer, and the upper edge of the outer wall layer and the filter layer The upper edge of the outer wall is sealed and connected, and the outer wall layer and the filter layer are hollow structures; the lower end of the outer wall layer is open and connected to the pipe body, and the lower end of the filter layer is closed into one point; the middle and lower parts of the filter layer are uniformly distributed.

The beneficial effect of the utility model is: the structure is simple, because the filter layer protects the filter paper, it effectively solves the problem that the filter paper is easily damaged by direct suction filtration of the triangular funnel; because the filter layer is an inverted cone, it is convenient to collect the filter product and can be used for Rapid quantitative filtration.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model.

Drawing description: 1. Bucket body 2. Pipe body 3. Outer wall layer 4. Filter layer 5. Small hole.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings, but the utility model is not limited.

With reference to accompanying drawing 1, the utility model comprises bucket body 1 and pipe body 2 two parts, and wherein, bucket body 1 is made up of outer wall layer 3 and filter layer 4, and the upper edge of outer wall layer 3 is sealed with the upper edge of filter layer 4, There is a hollow structure between the outer wall layer 3 and the filter layer 4; the lower end of the outer wall layer 3 is open and connected to the pipe body 2, and the lower end of the filter layer 4 is closed to a point; the middle and lower parts of the filter layer 4 are evenly distributed with a number of small holes 5.

When in use, the tube body 2 of the present utility model is inserted on the sealing plug of the filter bottle, the filter paper is pasted on the filter layer 4, the solution or slurry to be filtered is poured on the filter paper, and the vacuum pump connected to the filter bottle is opened Suction filtration can be carried out. Since the filter layer is an inverted cone, all the filtered products can be collected on the filter paper and weighed to obtain the quality of the filtered product, thereby completing quantitative filtration.

Claims (2)

1. novel Buchner funnel, comprise bucket body (1) and body (2) two parts, it is characterized in that: bucket body (1) is made up of outer wall layer (3) and filter course (4), the upper edge of outer wall layer (3) is tightly connected with the upper edge of filter course (4), is hollow structure between outer wall layer (3) and filter course (4); The lower ending opening of outer wall layer (3) is also connected with body (2), and the lower end of filter course (4) is closed into a bit.

2. novel Buchner funnel according to claim 1, is characterized in that: the middle and lower part of filter course (4) is evenly distributed with some apertures (5).