CN203043676U - Liquid suction device for removing supernatant liquid in laboratory - Google Patents

Abstract

The utility model relates to the technical field of chemical experimental apparatuses, and discloses a liquid suction device for removing supernatant liquid in a laboratory. The liquid suction device is characterized by comprising a suction filtration bottle with at least one upper nozzle, a sealing plug arranged at a bottleneck of the suction filtration bottle, a vacuum suction filtration machine connected with the upper nozzle of the suction filtration bottle through an air pipe, a liquid pipe and a glass suction nozzle, wherein one end of the liquid pipe is inserted into the sealing plug and is communicated with the suction filtration bottle, and the other end of the liquid pipe is connected with the glass suction nozzle. By the liquid suction device, the filtration and washing efficiency of small-granule precipitations can be greatly improved, and the time can be greatly saved.

Description

The pumping device of supernatant liquor is removed in a kind of laboratory

Technical field

The utility model relates to the chemical experimental instrument technical field, and particularly the pumping device of supernatant liquor is removed in a kind of laboratory.

Background technology

At present, the high efficiency method of known precipitation separation and clear liquid is exactly by vacuum filtration machine vacuum filtration, and the vacuum filtration machine is to form negative pressure at the filtrate (liquid place as the motive force of filtering.During use, treat air-tightness detect finish after, in the suction filtration crucible, pour turbid liquid into, make the suction filtration crucible produce the fluid-tight state, open suction filtration machine switch then, realize the suction filtration process.But, the configuration of traditional vacuum suction filtration machine causes himself existing some problems to solve, such as: the vacuum filtration machine negative pressure generally can be very not big, when utilizing the bigger precipitation of common filter paper suction filtration particle, because the filter paper hole is bigger, therefore suction filtration is finished comparatively rapid, but need utilize the filter membrane suction filtration to nano-scale particle, because hole is too small, choking phenomenon often appears when causing suction filtration, it is consuming time very long to finish whole suction filtration process, and the process that refilters of washing of precipitate afterwards still needs to consume the plenty of time, is having a strong impact on the experiment process.

In addition, removing the method for supernatant liquor utilizes pipette and glue head dropper with supernatant liquor absorption gradually in addition, but be to use pipette also to need to operate rubber pipette bulb, strengthened manually-operated difficulty undoubtedly, not only in the time, consumed big this kind method of operating but also the consumption manpower, and long-time operation easily causes operation fatigue, easily stirs and make muddy precipitation, cause the precipitation loss, it is unfavorable that the later stage is separated.

Summary of the invention

For solving the problem that prior art filtering and washing granule precipitates length consuming time, the purpose of this utility model is to provide a kind of laboratory to remove the pumping device of supernatant liquor, this pumping device can improve the filtration washing efficient of granule precipitation greatly, saves the plenty of time.

In order to achieve the above object, the utility model is achieved by the following technical solutions.

The pumping device of supernatant liquor is removed in a kind of laboratory, it is characterized in that, comprises the bottle,suction that has last mouth at least, is arranged on the sealing-plug of bottle,suction bottleneck, the vacuum filtration machine that is connected with the last mouth of bottle,suction by tracheae, and liquid pipe and glass suction nozzle; One end of described liquid pipe inserts sealing-plug and is communicated with bottle,suction, and the other end of liquid pipe connects the glass suction nozzle.

Characteristics of the present utility model and further the improvement are:

Described tracheae is rubber tube;

Described liquid pipe is glass tube;

Described sealing-plug is rubber stopper.

Remove in the pumping device of supernatant liquor in the utility model laboratory, and the last mouth of vacuum filtration machine and bottle,suction is connected by tracheae, and an end of liquid pipe inserts sealing-plug and is communicated with bottle,suction, and the other end of liquid pipe connects the glass suction nozzle.Should compare with existing two kinds of isolation technics in the background technology, its outstanding advantage is: 1. compare direct precipitation and pipetting, shortened the time of whole filtration washing greatly; 2. utilize the laboratory equipment fully, bring into play the effect of vacuum filtration machine efficiently; 3. flexible operation is convenient to manually-operated, saves manpower; 4. strengthen the later stage is moved the control of liquid, significantly reduce the precipitation capacity loss when moving liquid.5. after drawing liquid work was finished, pumping device can be for convenience detach, the experimental provision use of keeping in the center.6. adopt the glass nozzle structure simple, with low cost.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further details.

Fig. 1 is the floor map that the pumping device of supernatant liquor is removed in a kind of laboratory of the present utility model;

Fig. 2 is the generalized section of Fig. 1 glass suction nozzle;

Among the figure: 1, vacuum filtration machine; 2, bottle,suction; 3, glass suction nozzle; 4, rubber tube; 5, rubber stopper; 6, glass tube; 7, beaker; 8, supernatant liquor; 9, precipitation.

The specific embodiment

With reference to Fig. 1, pumping device for a kind of laboratory removal supernatant liquor of the present utility model mainly comprises the bottle,suction 2 that has last mouth at least, is arranged on the sealing-plug of bottle,suction 2 bottlenecks, the vacuum filtration machine 1 that is connected with the last mouth of bottle,suction 2 by tracheae, and liquid pipe and glass suction nozzle 3; One end of liquid pipe inserts sealing-plug and is communicated with bottle,suction 2, and the other end of liquid pipe connects glass suction nozzle 3.Wherein, tracheae is rubber tube 4; The liquid pipe is glass tube 6; Sealing-plug is rubber stopper 5.

Vacuum filtration machine 1 is power set, act as the generation negative pressure, makes supernatant liquor 8 flow backward in the bottle,suction 2, by practical adjustments vacuum magnitude and then adjusting absorption rate.Bottle,suction 2 is the clear liquid receiving system, can increase bottle,suction quantity by actual needs and enter in the vacuum filtration machine to prevent the liquid suck-back.Glass suction nozzle 3 is for absorbing entrance, and for ease of absorbing, its design shape is taper.Glass tube 6 is connected effect with rubber tube 4 lifting devices, and rubber stopper 5 seals.

With reference to Fig. 2, be the generalized section of glass suction nozzle in the utility model.Wherein, the glass suction nozzle is taper, has centre bore, and the front glass pipe is carefully grown, and bore is about 1.0-2.0mm foremost, and length is 12-15cm.Thin bore design can greatly improve the absorption accuracy to supernatant liquor in the drawing liquid later stage, and avoids absorbing precipitation and cause unnecessary loss; Artificial singlehanded control is convenient in long structure design, and promotes precision greatly.

Although below by reference to the accompanying drawings embodiment of the present utility model is described, the utility model is not limited to above-mentioned specific embodiments and applications field, and above-mentioned specific embodiments only is schematic, guiding, rather than restrictive.Those of ordinary skill in the art under the situation that does not break away from the scope that the utility model claim protects, can also make a variety of forms under the enlightenment of this specification, these all belong to the row of the utility model protection.

Claims (4)

1. A liquid pumping device for removal of supernatant in a laboratory, characterized in that it comprises at least a suction filter bottle with an upper mouth, a sealing plug arranged on the suction filter bottle bottleneck is connected with the upper mouth of the suction filter bottle by a trachea A vacuum filter, a liquid pipe and a glass suction nozzle; one end of the liquid pipe is inserted into a sealing plug to communicate with the suction filter bottle, and the other end of the liquid pipe is connected to the glass suction nozzle. the 2. The pumping device for removing the supernatant in the laboratory according to claim 1, wherein the air pipe is a rubber pipe. the 3. The pumping device for removing the supernatant in the laboratory according to claim 1, wherein the liquid pipe is a glass pipe. the 4. The pumping device for removing the supernatant in the laboratory according to claim 1, wherein the sealing plug is a rubber plug. the

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