CN211328353U - Funnel for experiments - Google Patents
Funnel for experiments Download PDFInfo
- Publication number
- CN211328353U CN211328353U CN201922345910.4U CN201922345910U CN211328353U CN 211328353 U CN211328353 U CN 211328353U CN 201922345910 U CN201922345910 U CN 201922345910U CN 211328353 U CN211328353 U CN 211328353U
- Authority
- CN
- China
- Prior art keywords
- funnel
- liquid
- aurilave
- hole
- piston switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000002474 experimental method Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 238000005406 washing Methods 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to an experimental apparatus technical field discloses a simple structure and funnel for experiments that filter speed is fast possesses: a funnel formed as an inner hollow structure, the funnel for filtering a liquid; the top edge of the funnel is provided with a through hole for connecting an ear washing ball; a round hole for the liquid to pass through is formed on the inner wall of the funnel; the piston switch is arranged at the middle lower part of the funnel neck of the funnel and is used for opening or closing the funnel; during filtering, the piston switch is closed, filter paper is placed in the funnel, liquid to be filtered is poured, the aurilave is extruded and inserted into the through hole, and the aurilave is loosened to form negative pressure in the funnel; and opening the piston switch to enable the liquid to flow out.
Description
Technical Field
The utility model relates to an experimental apparatus technical field, more specifically say, relate to a funnel for experiments.
Background
The funnel is a more common auxiliary tool in the experiment. At present, when liquid is filtered, filter paper is required to be placed in a funnel, and the liquid flows down along the neck of the funnel through the filter paper, so that the aim of removing solid impurities is fulfilled. However, the ordinary funnel adopts normal pressure filtration, so that the speed of filtration is slow during the experiment, and the experiment progress of students is influenced.
Therefore, how to increase the filtering speed of the funnel and the experimental efficiency becomes a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the slow defect of the above-mentioned funnel filter speed of prior art, provide a simple structure and filter speed is fast for the experiment funnel.
In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:
in a first aspect, the present invention provides a technical solution for the technical problem: an experimental funnel is provided with:
a funnel formed as an inner hollow structure, the funnel for filtering a liquid; wherein
The top edge of the funnel is provided with a through hole for connecting an ear washing ball;
a round hole for the liquid to pass through is formed on the inner wall of the funnel;
the piston switch is arranged in a funnel neck of the funnel and is used for opening or closing the funnel;
during filtering, the piston switch is closed, folded filter paper is placed in the funnel, the liquid is poured, the aurilave is extruded and inserted into the through hole, and the aurilave is loosened, so that negative pressure is formed at the hollow part of the funnel;
and opening the piston switch to enable the liquid to flow out.
In some embodiments, the inner wall of the funnel is porous and the circular holes are axially aligned along the inner wall of the funnel.
In some embodiments, the ear washing bulb is provided separately from the funnel.
In some embodiments, the piston switch is disposed radially in a lower-middle portion of the filler neck.
In some embodiments, the funnel stand is further provided, and the funnel stand is used for placing the funnel.
In a second aspect, the utility model also provides a funnel for experiments, possesses:
a funnel, the inner wall of which is provided with a porous structure, wherein the funnel is used for filtering liquid;
the container is formed into a cylinder with an open top structure, and a through hole for connecting the ear washing ball is formed in one side of the container;
an elastic layer placed on the edge of the top of the container;
during filtering, the folded filter paper is placed in the funnel, the liquid is poured into the funnel, the aurilave is extruded and inserted into the through hole, and the aurilave is loosened, so that negative pressure is formed in the container.
The experimental funnel comprises a funnel which is formed into an internal hollow structure, wherein a through hole for connecting an aurilave is arranged at the top edge of the funnel; a round hole for liquid to pass through is formed on the inner wall of the funnel; the piston switch is arranged at the middle lower part of the funnel neck of the funnel, when in filtering, the piston switch is closed, the folded filter paper is put into the funnel, the liquid to be filtered is poured, the aurilave is extruded and is inserted into the through hole, so that the hollow part of the funnel forms negative pressure; the piston switch is opened to allow the liquid to flow out. Compared with the prior art, the utility model can form negative pressure at the hollow part of the funnel without an external equipment vacuum pump, thereby effectively improving the filtering speed of the funnel and further improving the experimental efficiency; on the other hand, the utility model discloses a funnel structure is simple and convenient to use.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic perspective view of an embodiment of an experimental funnel;
FIG. 2 is a schematic cross-sectional view of an embodiment of the experimental funnel;
fig. 3 is a schematic perspective view of an embodiment of a piston switch according to the present invention;
fig. 4 is a schematic perspective view of another embodiment of the experimental funnel.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic perspective view of an embodiment of an experimental funnel; FIG. 2 is a schematic cross-sectional view of an embodiment of the experimental funnel; fig. 3 is a schematic perspective view of an embodiment of a piston switch according to the present invention. As shown in fig. 1 to 3, the experimental funnel of the present invention mainly includes a funnel 10, a piston switch 20, and an ear washing bulb (not shown).
The funnel 10 is formed in a bowl shape formed in an inner hollow structure, and the funnel 10 is used for filtering liquid.
Further, a circular hole 101 for passing liquid is formed on the inner wall of the funnel 10, and a through hole 102 for connecting an ear washing ball is formed on the top edge of the funnel 10.
Wherein, a piston switch 20 is installed at the middle lower portion of the funnel neck of the funnel 10, and the funnel 10 can be turned on or off by rotating the piston switch 20.
During filtering, the piston switch 20 is closed, the folded filter paper is placed in the funnel 10, the filter liquid is poured, then the aurilave is extruded and inserted into the through hole, the aurilave is loosened, so that negative pressure is formed at the hollow part of the funnel, and then the piston switch 20 is opened to enable the filtered liquid to flow out.
Illustratively, during the experiment, the piston switch 20 is closed, the filter paper is folded twice, three layers are arranged on one side, one layer is opened on one side, the filter paper is placed in the funnel 10, the filter paper is moistened to enable the filter paper to completely cover the round hole 101, the liquid to be filtered is poured in, at the moment, the aurilave is squeezed, the aurilave is inserted into the through hole 102, the aurilave is loosened, at the moment, negative pressure is formed in the hollow funnel 10, and the filtering speed can be accelerated through the action of the negative pressure. After the filtration is completed, the liquid is gathered at the funnel neck of the funnel 10, and at this time, the piston switch 20 is turned on to discharge the liquid, thereby completing the filtration.
The utility model discloses do not need the external equipment vacuum pump can form the negative pressure in the cavity department of funnel 10, improve the filter velocity of funnel 10 effectively, and then improve experimental efficiency, and the simple structure and the convenient to use of funnel.
In some embodiments, to increase the speed of filtration by the funnel 10, the inner wall of the funnel 10 may be provided with a porous structure. Specifically, the circular holes 101 are axially arranged along the inner wall of the funnel 10, and the number of the circular holes 101 gradually decreases downward.
In some embodiments, the ear wash bowl may be provided separately from the funnel 10 in order to improve ease of use.
In some embodiments, in order to ensure the negative pressure in the hollow of the funnel 10, a piston switch 20 may be provided in the funnel neck, in particular, the piston switch 20 is radially provided in the funnel neck, and a water flow hole 201 is provided in the piston switch 20.
The piston switch 20 can rotate 360 degrees, when the piston switch is turned on, the water flowing hole 201 is rotated to be flush with the axis of the leakage rod, and liquid can flow out through the water flowing hole 201; when closed, the piston switch 20 may be rotated 45 degrees or 135 degrees (based on the axis of the funnel neck).
In some embodiments, to ensure the use of the funnel is smooth, a funnel stand (not shown) may be provided at the bottom of the funnel 10, and in particular, the funnel stand is used for placing the funnel 10.
Fig. 4 is a schematic perspective view of another embodiment of the experimental funnel. As shown in fig. 4, the second embodiment of the funnel for experiment of the present invention mainly comprises a funnel 10, a container 30 and an ear washing ball (not shown).
Specifically, the inner wall of the funnel 10 is provided with a porous structure, wherein the porous structure corresponds to the circular hole 101, and the funnel 10 is used for filtering liquid.
The container 30 is formed in a cylindrical body of a top opening structure in which a through hole 301 for coupling the aurilave is provided at one side of the container 30.
Note that the outer diameter of the funnel 10 is larger than the inner diameter of the opening of the container 30, and the maximum outer diameter of the porous portion is smaller than the inner diameter of the opening of the container 30.
Further, a detachable elastic layer 302 is provided at the edge of the top of the container 30, and the elastic layer 302 is used to improve the tightness of the joint of the funnel 10 and the container 30.
During filtering, a folded filter paper (not shown in the figure) is put into the funnel 10, the liquid to be filtered is poured in, the aurilave is squeezed, the aurilave is inserted into the through hole, and the aurilave is loosened, so that negative pressure is formed in the container 30.
During the experiment, place funnel 10 on container 30 earlier, with filter paper fifty percent discount twice, according to one side three-layer, one side one deck is opened, puts into funnel 10, moist filter paper, makes filter paper can cover round hole 101 completely, pours into the liquid that needs to filter again, at this moment, extrudees aurilave, inserts through-hole 301 with aurilave, then loosens aurilave, at this moment, forms the negative pressure in container 30, through the effect of negative pressure, can accelerate filter speed.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (6)
1. A funnel for experiment is characterized by comprising:
a funnel formed as an inner hollow structure, the funnel for filtering a liquid; wherein
The top edge of the funnel is provided with a through hole for connecting an ear washing ball;
a round hole for the liquid to pass through is formed on the inner wall of the funnel;
the piston switch is arranged at the middle lower part of the funnel neck of the funnel and is used for opening or closing the funnel;
during filtering, the piston switch is closed, filter paper is placed in the funnel, liquid to be filtered is poured, the aurilave is extruded and inserted into the through hole, and the aurilave is loosened to form negative pressure in the funnel;
and opening the piston switch to enable the liquid to flow out.
2. The experimental funnel of claim 1,
the inner wall of the funnel is of a porous structure, and the round holes are axially arranged along the inner wall of the funnel.
3. The experimental funnel of claim 1,
the ear washing ball and the funnel can be separately arranged.
4. The experimental funnel of claim 3,
the piston switch is radially disposed within the filler neck.
5. The laboratory funnel according to any one of claims 1 to 4,
the funnel stand is used for placing the funnel.
6. A funnel for experiment is characterized by comprising:
a funnel, the inner wall of which is provided with a porous structure, wherein the funnel is used for filtering liquid;
the container is formed into a cylinder with an open top structure, and a through hole for connecting the ear washing ball is formed in one side of the container;
an elastic layer placed on the edge of the top of the container;
during filtering, filter paper is put into in the funnel, pours into the liquid of treating the filtration, extrudes aurilave will aurilave insert through-hole, loosen aurilave, make form the negative pressure in the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922345910.4U CN211328353U (en) | 2019-12-24 | 2019-12-24 | Funnel for experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922345910.4U CN211328353U (en) | 2019-12-24 | 2019-12-24 | Funnel for experiments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211328353U true CN211328353U (en) | 2020-08-25 |
Family
ID=72107677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922345910.4U Expired - Fee Related CN211328353U (en) | 2019-12-24 | 2019-12-24 | Funnel for experiments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211328353U (en) |
-
2019
- 2019-12-24 CN CN201922345910.4U patent/CN211328353U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200825 |