CN2756296Y

CN2756296Y - Detachable multifunction funnel

Info

Publication number: CN2756296Y
Application number: CN 200420042246
Authority: CN
Inventors: 傅建熙; 马养民; 周文明
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-27
Filing date: 2004-07-27
Publication date: 2006-02-08
Anticipated expiration: 2014-07-27

Abstract

The utility model discloses a detachable multifunctional funnel for usually filtering and transferring solution on the industrial production and laboratories in industries, such as medicine, chemical industry, food, etc. The utility model is composed of a funnel basal seat, a cushion ring, a porous screen plate, a filter paper or a filtering cloth clamping ring and a funnel wall, wherein fixed rings are arranged above the conical degree of the funnel basal seat. Each fixed ring has inner screw threads, and one funnel wall with outer screw threads is connected with each fixed ring by the inner screw threads. The cushion ring, the porous screen plate, the filter paper or filtering cloth clamping ring are used as accessories. The components of the detachable combined funnel are flexibly combined according to different purposes. The utility model has the advantages of reasonable design, compact structure, wide purposes, easy assembling and detaching operations, convenient clean, high work efficiency, etc.

Description

The detachable multifunctional funnel

Technical field

The utility model relates to a kind of funnel, particularly commonly used a kind of filtering solution and shift the detachable multifunctional funnel that solution is used on the laboratory of industries such as medicine, chemical industry and food and the industrial production.

Background technology

Have the funnel that filters usefulness in industrial and the laboratory now and generally have 4 kinds: the 1st kind: Buchner funnel.Its ceramic making commonly used.After adding filter paper, industrial in a small amount filtration under diminished pressure and the laboratory a kind of filter tunnel commonly used when filtering fast that reduces pressure that carries out.The 2nd kind: general funnel.Industrial stainless steel commonly used or plastic production are used for shifting solution in a small amount; The laboratory is many to make of glass, carries out a small amount of sample filtering after shifting solution or adding filter paper and uses.The 3rd kind: glass sand hourglass.The laboratory is carried out filtered sample and is used.The 4th kind: hot funnel.It is general glass funnel through converting, add behind the filter paper laboratory and carry out the heat filtering sample and use.Mainly there is following shortcoming in existing filtration with funnel:

The shortcoming that Buchner funnel exists: when 1) filtering organic solution (particularly fat-soluble solvent is a medium), because organic solvent is non-infiltration liquid to funnel, filter paper or filter cloth can not soak with organic solvent, so they can not be close to the funnel sieve plate, precipitation often enters the filtrate from filter paper and sieve plate gap easily, causes the filtrate unclarity.2) filter paper of special-purpose specification all must be arranged to each funnel, the improper precipitation that causes easily of filter paper size is leaked, and causes the filtrate unclarity.3) the funnel sieve plate back side can't be cleaned, so cause the pollution of filtered fluid easily.4) can only be used as filtration under diminished pressure, can not use as general funnel.Because filter paper can not be close to hopper walls, precipitation often enters the filtrate between filter paper and hopper walls easily when 5) filtering, so filtrate unclarity often.

The shortcoming that general funnel exists: can only be used as the filtration of small volume of solution, and the rate of filtration is slow; Normal only as shifting solution.

The shortcoming that glass sand hourglass exists: 1) clean relatively difficulty.2) can only be as the filtration of small volume of solution.3) purposes is single and limited.

The shortcoming that hot funnel exists: purposes is single, has the shortcoming that general funnel exists.

Summary of the invention

Defective or deficiency at above-mentioned funnel existence, the purpose of this utility model is, provide a kind of and have multipurpose, be convenient to clean, detachable multifunctional funnel easy to use, this funnel can be applicable to and shift solution or filtration, also can be used for normal pressure filters or filtration under diminished pressure, be applicable to that also circular filter paper and square filter paper or filter cloth filter, not only be applicable to aqueous solution filtration but also be applicable to the organic solution filtration.

The technical solution that realizes above-mentioned purpose is that this detachable multifunctional funnel comprises a funnel pedestal, be characterized in, the above inwall of this funnel pedestal tapering is equipped with retainer plate, has internal thread more than the retainer plate, connects one on the internal thread and is with externally threaded hopper walls; And with a packing ring, the porous sieve plate identical be used to compress the trim ring of filter paper or filter cloth with funnel pedestal internal diameter.

Some other characteristics of the present utility model are that the material of funnel pedestal, hopper walls, trim ring and porous sieve plate is stainless steel or plastics or pottery;

The material of packing ring adopts acidproof, alkaline-resisting and heat-resisting polytetrafluoroethylene (PTFE) or silicon rubber.

Detachable multifunctional funnel of the present utility model adopts the split design, can make up flexibly parts according to different purposes.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a part schematic diagram of the present utility model, a) is the funnel pedestal wherein, b) is hopper walls, c) is packing ring, d) is porous sieve plate, e) is trim ring.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Referring to Fig. 1～2, structure of the present utility model is made of the assembling of parts such as funnel pedestal 1, packing ring 2, porous sieve plate 3, the trim ring 4 that compresses filter paper or filter cloth and hopper walls 5.Wherein the material of funnel pedestal 1, hopper walls 5, trim ring 4 and porous sieve plate 3 all adopts stainless steel or plastics or ceramic making; The material of packing ring 2 adopts acidproof, alkaline-resisting and heat-resisting polytetrafluoroethylene (PTFE) or silicon rubber.The above inwall of this funnel pedestal tapering is equipped with retainer plate, has internal thread more than the retainer plate, connects one on the internal thread and is with externally threaded hopper walls.Packing ring 2, porous sieve plate 3, compress the trim ring 4 of filter paper or filter cloth as annex.

Be used in combination as follows according to different purposes:

1, earlier polytetrafluoroethylene (PTFE) or silicone rubber gasket 2 are placed on the fixed support circle of funnel pedestal 1, secondly porous sieve plate 3 is placed on polytetrafluoroethylene (PTFE) (or silicon rubber) packing ring 2, then that diameter is the same with porous sieve plate diameter filter paper or filter cloth (circle or square) are placed on the porous sieve plate, then filter paper or filter cloth trim ring 4 are pressed on filter paper or the filter cloth.Be tightened on multi-functional hopper walls 5 on the funnel pedestal 1 at last and be pressed on filter paper (or filter cloth) trim ring 4, promptly be combined into a complete detachable multifunctional funnel, its present function is exactly a Buchner funnel; Also can be used as to extract and use the seepage bucket.

2, if without tetrafluoroethene (or silicon rubber) packing ring 2, porous sieve plate 3, filter paper or filter cloth trim ring 4 parts, directly multi-functional hopper walls 5 tightly is spun on the funnel pedestal 1.Just the detachable multifunctional funnel has been formed a high wall shift liquid funnel this moment.

3, if without tetrafluoroethene (or silicon rubber) packing ring 2, porous sieve plate 3, filter paper or filter cloth trim ring 4 and multi-functional hopper walls 5 parts, its funnel pedestal 1 itself is exactly a common funnel.

The utility model preparation is simple, and compact conformation is reasonable, of many uses, loading and unloading are easy, be convenient to cleaning, high efficiency, parts is made up flexibly can be used for different occasions.

Claims

1. a detachable multifunctional funnel comprises a funnel pedestal, it is characterized in that, on the inwall more than this funnel pedestal (1) tapering retainer plate is housed, and has internal thread, connects one on the internal thread and is with externally threaded hopper walls (5); And with a packing ring (2), the porous sieve plate (3) identical be used to compress the trim ring (4) of filter paper or filter cloth with funnel pedestal internal diameter.

2. detachable multifunctional funnel as claimed in claim 1 is characterized in that, the material of described funnel pedestal (1), hopper walls (5), porous sieve plate (3) and trim ring (4) is stainless steel or plastics or pottery.

3. detachable multifunctional funnel as claimed in claim 1 is characterized in that, the material of described packing ring (2) adopts acidproof, alkaline-resisting and heat-resisting polytetrafluoroethylene (PTFE) or silicon rubber.