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Buchner funnel

A technology of Buchner funnel and cylinder holder, which is applied in the field of analysis experiments, can solve the problems of troublesome filtration and inconvenient removal of filter plates, etc.

Inactive Publication Date: 2018-01-09
天津市亨必达化学合成物有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many technical problems to be solved in this technical solution. One is that the filter plate is directly embedded in the step. If the fitting is too loose, it will be very troublesome during vacuum filtration; It is convenient to take out the filter plate; the second is that the filter plate is directly embedded in the step, and the gap between the two will allow the liquid to be filtered to enter the tapered part of the funnel from the inside, that is, the final filtering effect. solve

Method used

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Examples

Experimental program
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Embodiment 1

[0037] See figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 , A Buchner funnel, comprising: a cylindrical upper tube holder 1, an inverted cone 2 located below the upper tube holder 1, and a matching use with the upper tube holder 1 and the inverted cone 2 Filter frame 3, the lower end of the upper cylinder frame 1 is provided with an annular convex edge I4 and the upper end of the inverted cone cylinder 2 is provided with an annular groove I5 that can be mated with the convex edge I4. The outer wall of the inverted cone cylinder 2 Two support seats 6 are also symmetrically provided, and the outer wall of the upper tube frame 1 is symmetrically provided with two connecting seats 7, and the two connecting seats 7 are connected to the support seats 6 on the corresponding side by elastic rubber ropes 8, so The upper end of the filter frame 3 is provided with a groove II9 that is matched with the convex edge I4, and the lower end is provided with a convex edge II10 that ca...

Embodiment 2

[0041] See Image 6 , Figure 7 , Figure 8 , Picture 9 with Picture 10 , A Buchner funnel, comprising: a cylindrical upper tube holder 1, an inverted cone 2 located below the upper tube holder 1, and a matching use with the upper tube holder 1 and the inverted cone 2 Filter frame 3, the lower end of the upper tube frame 1 is provided with an annular groove I5 and the upper end of the inverted cone tube 2 is provided with an annular convex edge I4 that can be matched with the groove I5. The outer wall of the inverted cone tube 2 Two support seats 6 are also symmetrically provided, and two connecting seats 7 are symmetrically provided on the outer wall of the upper tube frame 1. The two connecting seats 7 are connected to the support seats 6 on the corresponding side by elastic rubber ropes 8, so The upper end of the filter frame 3 is provided with a convex edge Ⅱ10 that is matched with the groove I5, and the lower end is provided with a groove Ⅱ9 that can be matched with the ...

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Abstract

The invention relates to a Buchner funnel, which comprises a cylindrical upper cylinder frame, an inverted conical cylinder positioned below the upper cylinder frame, and a filtration frame capable ofbeing connected to the upper cylinder frame and the inverted conical cylinder in a matched manner, wherein the lower end of the upper cylinder frame is provided with a ring-shaped projection edge I,the upper end of the inverted conical cylinder is provided with an annular concave groove I capable of being connected to the projection edge I in a matched manner, the outer wall of the inverted conical cylinder are symmetrically provided with two support seats, the outer wall of the upper cylinder frame are symmetrically provided with two connection seats, the two connection seats are respectively connected to the support seats at the corresponding sides through elastic rubber ropes, the upper end of the filtration frame is provided with a concave groove II connected to the projection edge Iin a matched manner, the lower end of the filtration frame is provided with a projection edge II capable of being connected to the concave groove I in a matched manner, and a plurality of filtrationholes arranged in an annular array manner are arranged in the middle of the filtration frame.

Description

Technical field [0001] The invention belongs to the technical field of analysis experiments, and particularly relates to a Buchner funnel. Background technique [0002] Nowadays, the Buchner funnel used for vacuum filtration in the laboratory is an integral structure that cannot be separated. After filtering, it is not convenient to clean the cone-shaped part and the lower surface of the circular hole in the lower part of the funnel, and it is easy to retain debris and breed microorganisms. , Contaminate the next experiment liquid. In order to solve the above technical problems, patent ZL 201420619025.5 discloses a detachable distribution funnel, including a funnel shell, a step is provided on the inner wall of the neck of the funnel shell, and a filter plate with a small hole is embedded in the step. The technical scheme constitutes a complete Buchner funnel by combining the funnel shell and the filter plate, which effectively reduces the risk of contamination of the experiment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/085B01L3/00
Inventor 朱云景高翔凌贾宪勇
Owner 天津市亨必达化学合成物有限公司