CN85200281U - Multi-purpose pumping strainer - Google Patents

Abstract

The utility model relates to a novel multi-purpose pumping strainer made of glass, which is mainly used for chemistry, medicine and biology experiment; the utility model improves the present universal suction flask, and solves the problem of the small quantity loss of the solution because of the solution inversion for many times in the chemistry, medicine and biology experiment; the multi-purpose pumping strainer is especially suitable for the suction filtration of small quantity of solution, and can be used as a minitype vacuum drier and a vacuum concentrator; the multi-purpose pumping strainer is the important innovation for the traditional suction flask.

Description

Multi-purpose pumping strainer

The utility model is the novel multi-use suction filtration device of making of glass about a kind of.

As everyone knows, in chemistry, medicine, Bioexperiment and other scientific experiment, usually need the suction filtration precipitation, the common now bottle,suction of making of glass, no matter how are its size or shape, all be directly filtrate to be received in the bottle,suction earlier, and then change other container over to, like this in the filtrate transfer process, can be because the transposition of filtrate causes the small loss of filtrate.The transposition number of times of solution is many more, and final solution loss also can be obvious more so, carrying out some required precision height, and some scientific experiments that solution amount is less again tend to because these are former thereby influence experimental result.Filtration and recrystallization solution for example, a spot of filtrate is changed in other container by bottle,suction and goes, and loss is arranged slightly, all can influence the yield of precipitation, in addition, when each transposition filtrate, use the solution washing bottle,suction, can increase the volume of recrystallization solution like this.In modern Experiment of Organic Chemistry, particularly in the separation of natural products, all towards semimicro, even micro-direction develops, so the amount that requires various solution to lose in operating process is few more good more.

The utility model proposes a kind of new device, solution can reduce the loss of filtrate so significantly without any transposition in the suction filtration process.

Utilize diagrammatic sketch to introduce characteristics of the present utility model below.

Show as Fig. 1 how to be made up of bottle head (2) and bottle seat (3) with the bottle,suction (1) of suction filtration device, bottle head and bottle seat are to connect into a bottle,suction by the frosted interface.A bottle upside has a suction filtration mouth (4), in use little triangular flask (5) is placed bottle seat after, connect a bottle head, then at a bottle funnel (6) that connects suitable for reading, constitute the single unit system of suction filtration.

Fig. 2 is a discrete device schematic diagram of the present utility model.The used funnel of the utility model has the frosted joint, it can be directly and bottle suitable for reading connection of bottle,suction, simultaneously for the ease of filtering small amount of crystalline, funnel bottom is made flat (7), flat should not be too big, flat centre has aperture (8), when carrying out the filtration of a small amount of solution, only need spread a garden shape filter paper identical with flat size and can carry out suction filtration.

Another characteristics of the utility model are that the suction filtration device has multiple use.

Example 1:

Show that as Fig. 3 be used for the heating of solvent in a small amount and concentrate, method of operating is: take off funnel, load onto capillary (9) and heater (10), can be directly concentrated to the solution in the little triangular flask (5), can avoid the solution transposition like this.

Example 2:

Load onto drier on every side at little triangular flask (5), the sample that is dried places in the little triangular flask, bottle stopper on a bottle upper flap of bottle,suction, aspirate with pump, it acts on similar small size vacuum drier, as on the bottle seat, heating, can carry out heat drying, can replace the comparatively complicated reversed current drier that uses at present.

In addition from shown in Figure 4, the utility model also is equipped with a standby funnel (11) that can be connected to any ground glass apparatus, standby hopper structure and funnel (6) are basic identical, its difference is at funnel frosted interface side one arm (12) to be arranged, can select for use according to the different operating needs, as when filtering the volume solvent, use standby funnel comparatively convenient.

Utilize the utility model, for filtering trace or a large amount of solvent all than at present general bottle,suction conveniently, can increase the continuity of experimental work, reduce the transposition number of times of solution, thereby reduce the loss of solution, be specially adapted to the in a small amount suction filtration of solution, can be used as in addition vacuum concentrator and vacuum desiccator and use, be the important reform to traditional bottle,suction, expectation will have certain use value.

Claims (2)

1, a kind of suction filtration devices of making of glass of using more, by bottle,suction [1], little triangular flask [5], funnel [6] and standby funnel [11] are formed, the utility model is characterised in that bottle,suction is made up of a bottle head [2] and bottle seat [3] two parts, the upside of bottle head has a suction filtration mouth [4], and the bottle head is connected by the frosted interface with the bottle seat.

2, according to the described suction filtration device of claim 1, it is characterized in that the funnel (6) of a bottle connection suitable for reading, funnel bottom is flat (7), there is an aperture (8) flat centre.

Images