CN213555630U - Improved structure of suction filtration device - Google Patents
Improved structure of suction filtration device Download PDFInfo
- Publication number
- CN213555630U CN213555630U CN202022395518.3U CN202022395518U CN213555630U CN 213555630 U CN213555630 U CN 213555630U CN 202022395518 U CN202022395518 U CN 202022395518U CN 213555630 U CN213555630 U CN 213555630U
- Authority
- CN
- China
- Prior art keywords
- funnel
- sand core
- transition
- air
- suction filtration
- 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.)
- Active
Links
Images
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model discloses an improved structure of a suction filtration device, belonging to the technical field of chemical instruments, comprising a transition funnel, a sand core funnel, a conical flask, an air exhaust device and a connecting device; the transition funnel is hermetically connected with the sand core funnel through a connecting device; the sand core funnel is provided with an air extraction device for extracting air in the suction filtration device; the air extractor is connected with the conical flask in a sealing way. The connecting device in the utility model is composed of the bulge and the groove, and the transition funnel and the sand core funnel can be hermetically connected by matching the bulge and the groove without manual operation; and the position of the filter membrane is limited by the bulges, so that the filter membrane does not influence the sealing connection between the transition funnel and the sand core funnel, and the sealing performance of the suction filtration device is ensured. The inner diameter of the bottom of the transition funnel is smaller than that of the top of the sand core funnel, so that the filter membrane is fixed at the bottom of the transition funnel and is prevented from moving; and the filter liquid is prevented from overflowing the edge of the filter membrane, and the filtering effect is ensured.
Description
Technical Field
The utility model belongs to the technical field of chemical instrumentation, specifically speaking relates to an improvement structure of suction filtration device.
Background
The suction filtration device is often used in a laboratory, and is a set of necessary device in the laboratory. The filtrate has certain impurities, bacteria can grow along with the lapse of time, and the component composition of the filtrate is influenced if the bacteria are not removed, so that the accuracy of the detection result is influenced.
Transition funnel and psammitolite funnel need sealing connection, but prior art's suction filter device all is through manual operation spring clamp fixed transition funnel and sand core funnel, at first is difficult for making transition funnel and sand core funnel align the coincidence, needs multiple operation, secondly there is great error in manual operation, can lead to the filtrate to flow from the gap between transition funnel and the sand core funnel, extravagant filtrate pollutes the laboratory bench. Before the suction filtration, can place a filter membrane above the psammitolite funnel, also be that operating personnel manually places, often can put the filter membrane position asymmetric, influence the connection of transition funnel and psammitolite funnel, make the connection of the two unsealed, lead to the filtrating to flow from the gap between two funnels, extravagant filtrate pollutes the laboratory bench.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned weak point provide an improvement structure of suction filtration device, the difficult sealing connection of transition funnel and sand core funnel and filter membrane influence suction filtration device's leakproofness scheduling problem in the suction filtration device of the settlement prior art. In order to achieve the above object, the utility model provides a following technical scheme:
an improved structure of a suction filtration device comprises a transition funnel 1, a sand core funnel 2, a conical flask 3, an air extraction device and a connecting device; the transition funnel 1 is hermetically connected with the sand core funnel 2 through a connecting device; the sand core funnel 2 is provided with an air extraction device for extracting air in the suction filtration device; the air extractor is connected with the conical bottle 3 in a sealing way. According to the structure, the suction filtration device comprises a transition funnel 1, a sand core funnel 2, a conical flask 3, an air extraction device and a connecting device, wherein the transition funnel 1 is hermetically connected with the sand core funnel 2 through the connecting device, the sand core funnel 2 is provided with the air extraction device, and the air extraction device is hermetically connected with the conical flask 3; during filtering, the filtrate is poured into the transition funnel 1, and then the air in the suction filtration device is pumped out by the air pumping device to form air pressure difference, so that the filtrate in the transition funnel 1 enters the conical flask 3 through the sand core funnel 2, and filtering is completed. Utilize the connecting device who sets up on the suction filter device to be with transition funnel 1 and sand core funnel 2 sealing connection, need not manual operation for erection equipment's speed avoids manual connection's error, guarantees two funnel sealing connection, has solved the difficult sealing connection's of transition funnel 1 and sand core funnel 2 problem among the suction filter device of prior art.
Further, the connecting device comprises a plurality of protrusions 6 and a plurality of grooves 5; the bulge 6 is arranged at the top of the sand core funnel 2; the groove 5 is arranged at the bottom of the transition funnel 1; each protrusion 6 is provided with a corresponding groove 5; the bulge 6 is matched with the groove 5 and is used for hermetically connecting the transition funnel 1 and the sand core funnel 2. Known from above-mentioned structure, connecting device is a plurality of archs 6 and a plurality of recess 5 promptly, is equipped with a plurality of archs 6 at the top of psammitolite funnel 2, is equipped with the recess 5 that corresponds with arch 6 in the bottom of transition funnel 1, and arch 6 cooperates with recess 5, will transition funnel 1 and sand core funnel 2 sealing connection.
Further, the device also comprises a filter membrane; a sand core 10 is arranged at the top of the sand core funnel 2; and a filter membrane is arranged on the sand core 10. According to the structure, the sand core 10 is arranged at the top of the sand core funnel 2, and the filter membrane is arranged on the sand core 10; the position of filter membrane is restricted by protruding 6, makes the filter membrane not influence transition funnel 1 and sand core funnel 2's sealing connection, guarantees suction filter device's leakproofness. The filter membrane does not need to be manually adjusted, the position of the filter membrane is limited by the bulges 6, and the problem that the filter membrane influences the sealing performance of the suction filtration device in the prior art is solved.
Further, the air extracting device comprises an air extracting cover 8; a bottle opening 9 is arranged on the conical bottle 3; the bottom of the air exhaust cover 8 is hermetically connected with the bottle mouth 9. According to the structure, the air extractor comprises the air extracting cover 8, the bottom of the air extracting cover 8 is connected with the bottle opening 9 of the conical bottle 3 in a sealing mode, the sealing performance of the air extracting device is guaranteed, air in the air extracting device is convenient to extract, and filtering liquid in the transition funnel 1 is sucked into the conical bottle 3.
Further, an air exhaust pipe 7 is arranged on the air exhaust cover 8; the air exhaust pipe 7 is communicated with an air exhaust cover 8. According to the structure, the air exhaust cover 8 is provided with the air exhaust pipe 7 communicated with the air exhaust cover 8, and the air exhaust pipe 7 can be connected with an external air exhaust pump or an air exhaust cylinder.
Furthermore, the inner diameter of the bottom of the transition funnel 1 is smaller than that of the top of the sand core funnel 2, so that the filter membrane is fixed at the bottom of the transition funnel 1. According to the structure, the filter membrane is prevented from moving, so that the inner diameter of the bottom of the transition funnel 1 is smaller than the inner diameter of the top of the sand core funnel 2, the contact area between the bottom of the transition funnel 1 and the filter membrane is increased, and the filter membrane is fixed; and the filter liquid is prevented from entering the sand core funnel 2 from the edge of the filter membrane to influence the filtering effect.
The utility model has the advantages that:
1. the bulge and the groove form a connecting device, and the transition funnel and the sand core funnel can be hermetically connected by matching the bulge and the groove; need not manual operation for erection equipment's speed, avoid manual connection's error moreover, guarantee two funnel sealing connection.
2. The position of the filter membrane is limited by the bulge, so that the filter membrane does not influence the sealing connection of the transition funnel and the sand core funnel; the filter membrane does not need to be manually adjusted, and the sealing performance of the suction filtration device is ensured.
3. The inner diameter of the bottom of the transition funnel is smaller than that of the top of the sand core funnel, so that the bottom of the transition funnel fixes the filter membrane and prevents the filter membrane from moving; and the phenomenon that the filtering liquid enters the sand core funnel from the edge of the filter membrane to pollute the liquid in the conical flask is avoided, and the filtering effect is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the sand core funnel and the air extractor of the present invention;
FIG. 3 is a schematic view of the structure of the top surface of the sand core funnel of the present invention;
fig. 4 is a schematic view of the bottom structure of the transition funnel of the present invention;
in the drawings: 1-transition funnel, 2-sand core funnel, 3-conical flask, 5-groove, 6-protrusion, 7-exhaust pipe, 8-exhaust hood, 9-bottle mouth, 10-sand core.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.
The first embodiment is as follows:
see figures 1-4. An improved structure of a suction filtration device comprises a transition funnel 1, a sand core funnel 2, a conical flask 3, an air extraction device and a connecting device; the transition funnel 1 is hermetically connected with the sand core funnel 2 through a connecting device; the sand core funnel 2 is provided with an air extraction device for extracting air in the suction filtration device; the air extractor is connected with the conical bottle 3 in a sealing way. According to the structure, the suction filtration device comprises a transition funnel 1, a sand core funnel 2, a conical flask 3, an air extraction device and a connecting device, wherein the transition funnel 1 is hermetically connected with the sand core funnel 2 through the connecting device, the sand core funnel 2 is provided with the air extraction device, and the air extraction device is hermetically connected with the conical flask 3; during filtering, the filtrate is poured into the transition funnel 1, and then the air in the suction filtration device is pumped out by the air pumping device to form air pressure difference, so that the filtrate in the transition funnel 1 enters the conical flask 3 through the sand core funnel 2, and filtering is completed. Utilize the connecting device who sets up on the suction filter device to be with transition funnel 1 and sand core funnel 2 sealing connection, need not manual operation for erection equipment's speed avoids manual connection's error, guarantees two funnel sealing connection, has solved the difficult sealing connection's of transition funnel 1 and sand core funnel 2 problem among the suction filter device of prior art.
Example two:
see figures 1-4. An improved structure of a suction filtration device comprises a transition funnel 1, a sand core funnel 2, a conical flask 3, an air extraction device and a connecting device; the transition funnel 1 is hermetically connected with the sand core funnel 2 through a connecting device; the sand core funnel 2 is provided with an air extraction device for extracting air in the suction filtration device; the air extractor is connected with the conical bottle 3 in a sealing way. According to the structure, the suction filtration device comprises a transition funnel 1, a sand core funnel 2, a conical flask 3, an air extraction device and a connecting device, wherein the transition funnel 1 is hermetically connected with the sand core funnel 2 through the connecting device, the sand core funnel 2 is provided with the air extraction device, and the air extraction device is hermetically connected with the conical flask 3; during filtering, the filtrate is poured into the transition funnel 1, and then the air in the suction filtration device is pumped out by the air pumping device to form air pressure difference, so that the filtrate in the transition funnel 1 enters the conical flask 3 through the sand core funnel 2, and filtering is completed. Utilize the connecting device who sets up on the suction filter device to be with transition funnel 1 and sand core funnel 2 sealing connection, need not manual operation for erection equipment's speed avoids manual connection's error, guarantees two funnel sealing connection, has solved the difficult sealing connection's of transition funnel 1 and sand core funnel 2 problem among the suction filter device of prior art.
The connecting device comprises a plurality of bulges 6 and a plurality of grooves 5; the bulge 6 is arranged at the top of the sand core funnel 2; the groove 5 is arranged at the bottom of the transition funnel 1; each protrusion 6 is provided with a corresponding groove 5; the bulge 6 is matched with the groove 5 and is used for hermetically connecting the transition funnel 1 and the sand core funnel 2. Known from above-mentioned structure, connecting device is a plurality of archs 6 and a plurality of recess 5 promptly, is equipped with a plurality of archs 6 at the top of psammitolite funnel 2, is equipped with the recess 5 that corresponds with arch 6 in the bottom of transition funnel 1, and arch 6 cooperates with recess 5, will transition funnel 1 and sand core funnel 2 sealing connection.
Example three:
see figures 1-4. An improved structure of a suction filtration device comprises a transition funnel 1, a sand core funnel 2, a conical flask 3, an air extraction device and a connecting device; the transition funnel 1 is hermetically connected with the sand core funnel 2 through a connecting device; the sand core funnel 2 is provided with an air extraction device for extracting air in the suction filtration device; the air extractor is connected with the conical bottle 3 in a sealing way. According to the structure, the suction filtration device comprises a transition funnel 1, a sand core funnel 2, a conical flask 3, an air extraction device and a connecting device, wherein the transition funnel 1 is hermetically connected with the sand core funnel 2 through the connecting device, the sand core funnel 2 is provided with the air extraction device, and the air extraction device is hermetically connected with the conical flask 3; during filtering, the filtrate is poured into the transition funnel 1, and then the air in the suction filtration device is pumped out by the air pumping device to form air pressure difference, so that the filtrate in the transition funnel 1 enters the conical flask 3 through the sand core funnel 2, and filtering is completed. Utilize the connecting device who sets up on the suction filter device to be with transition funnel 1 and sand core funnel 2 sealing connection, need not manual operation for erection equipment's speed avoids manual connection's error, guarantees two funnel sealing connection, has solved the difficult sealing connection's of transition funnel 1 and sand core funnel 2 problem among the suction filter device of prior art.
The connecting device comprises a plurality of bulges 6 and a plurality of grooves 5; the bulge 6 is arranged at the top of the sand core funnel 2; the groove 5 is arranged at the bottom of the transition funnel 1; each protrusion 6 is provided with a corresponding groove 5; the bulge 6 is matched with the groove 5 and is used for hermetically connecting the transition funnel 1 and the sand core funnel 2. Known from above-mentioned structure, connecting device is a plurality of archs 6 and a plurality of recess 5 promptly, is equipped with a plurality of archs 6 at the top of psammitolite funnel 2, is equipped with the recess 5 that corresponds with arch 6 in the bottom of transition funnel 1, and arch 6 cooperates with recess 5, will transition funnel 1 and sand core funnel 2 sealing connection.
Also comprises a filter membrane; a sand core 10 is arranged at the top of the sand core funnel 2; and a filter membrane is arranged on the sand core 10. According to the structure, the sand core 10 is arranged at the top of the sand core funnel 2, and the filter membrane is arranged on the sand core 10; the position of filter membrane is restricted by protruding 6, makes the filter membrane not influence transition funnel 1 and sand core funnel 2's sealing connection, guarantees suction filter device's leakproofness. The filter membrane does not need to be manually adjusted, the position of the filter membrane is limited by the bulges 6, and the problem that the filter membrane influences the sealing performance of the suction filtration device in the prior art is solved.
The air extracting device comprises an air extracting cover 8; a bottle opening 9 is arranged on the conical bottle 3; the bottom of the air exhaust cover 8 is hermetically connected with the bottle mouth 9. According to the structure, the air extractor comprises the air extracting cover 8, the bottom of the air extracting cover 8 is connected with the bottle opening 9 of the conical bottle 3 in a sealing mode, the sealing performance of the air extracting device is guaranteed, air in the air extracting device is convenient to extract, and filtering liquid in the transition funnel 1 is sucked into the conical bottle 3.
An air exhaust pipe 7 is arranged on the air exhaust cover 8; the air exhaust pipe 7 is communicated with an air exhaust cover 8. According to the structure, the air exhaust cover 8 is provided with the air exhaust pipe 7 communicated with the air exhaust cover 8, and the air exhaust pipe 7 can be connected with an external air exhaust pump or an air exhaust cylinder.
The inner diameter of the bottom of the transition funnel 1 is smaller than that of the top of the sand core funnel 2, so that the filter membrane is fixed at the bottom of the transition funnel 1. According to the structure, the filter membrane is prevented from moving, so that the inner diameter of the bottom of the transition funnel 1 is smaller than the inner diameter of the top of the sand core funnel 2, the contact area between the bottom of the transition funnel 1 and the filter membrane is increased, and the filter membrane is fixed; and the filter liquid is prevented from entering the sand core funnel 2 from the edge of the filter membrane to influence the filtering effect.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (6)
1. The utility model provides an improvement structure of suction filter device which characterized in that: comprises a transition funnel (1), a sand core funnel (2), a conical flask (3), an air extractor and a connecting device; the transition funnel (1) is hermetically connected with the sand core funnel (2) through a connecting device; the sand core funnel (2) is provided with an air extraction device for extracting air in the suction filtration device; the air extractor is connected with the conical flask (3) in a sealing way.
2. The improved structure of the suction filtration device according to claim 1, wherein: the connecting device comprises a plurality of bulges (6) and a plurality of grooves (5); the bulge (6) is arranged at the top of the sand core funnel (2); the groove (5) is arranged at the bottom of the transition funnel (1); each protrusion (6) is provided with a groove (5) corresponding to the protrusion; the bulges (6) are matched with the grooves (5) and used for being connected with the transition funnel (1) and the sand core funnel (2) in a sealing mode.
3. The improved structure of the suction filtration device according to claim 1, wherein: also comprises a filter membrane; a sand core (10) is arranged at the top of the sand core funnel (2); and a filter membrane is arranged on the sand core (10).
4. The improved structure of the suction filtration device according to claim 1, wherein: the air extraction device comprises an air extraction cover (8); a bottle mouth (9) is arranged on the conical bottle (3); the bottom of the air exhaust cover (8) is hermetically connected with the bottle mouth (9).
5. The improved structure of the suction filtration device according to claim 4, wherein: an air exhaust pipe (7) is arranged on the air exhaust cover (8); the air exhaust pipe (7) is communicated with the air exhaust cover (8).
6. The improved structure of the suction filtration device according to claim 3, wherein: the inner diameter of the bottom of the transition funnel (1) is smaller than that of the top of the sand core funnel (2), so that the filter membrane is fixed at the bottom of the transition funnel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022395518.3U CN213555630U (en) | 2020-10-26 | 2020-10-26 | Improved structure of suction filtration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022395518.3U CN213555630U (en) | 2020-10-26 | 2020-10-26 | Improved structure of suction filtration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213555630U true CN213555630U (en) | 2021-06-29 |
Family
ID=76528931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022395518.3U Active CN213555630U (en) | 2020-10-26 | 2020-10-26 | Improved structure of suction filtration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213555630U (en) |
-
2020
- 2020-10-26 CN CN202022395518.3U patent/CN213555630U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213555630U (en) | Improved structure of suction filtration device | |
| CN202066854U (en) | Sludge dehydration speed quick measuring device | |
| CN105651554A (en) | Collection device and collection method of concrete pore solution | |
| CN218901425U (en) | Device suitable for water environment DNA sample negative pressure secondary filtration | |
| CN209033870U (en) | Sample divider is filtered by vacuum | |
| CN206121267U (en) | Vacuum buchner flask is used in modified laboratory | |
| CN205269182U (en) | High -efficient filtration system | |
| CN205730516U (en) | A kind of chemical reagent defecator | |
| CN213924815U (en) | Micro nucleic acid cracking tube | |
| CN106039799A (en) | Filtering device for chemical reagent | |
| CN207871669U (en) | A kind of solvent filtration apparatus | |
| CN209438190U (en) | Solvent filter degasser, system | |
| CN205699667U (en) | A kind of easy-to-mount bottle,suction | |
| CN208574485U (en) | A kind of graded combination Suction filtration device | |
| CN203253450U (en) | Cell storage liquid bottle for liquid base cell slice production | |
| CN201442946U (en) | Cast-off cell specimen collecting and separating bottle | |
| CN205145780U (en) | Filtering device | |
| CN201389368Y (en) | Pressure-reducing filter | |
| CN211159304U (en) | Batch automatic filtering device suitable for needle filter | |
| CN201776005U (en) | Moving ring seal of vertical leaf-filtering leaf filter | |
| CN207221433U (en) | A kind of drainage device | |
| CN203458873U (en) | Suction filtration device for laboratory | |
| CN211885725U (en) | Closed solution filtering device | |
| CN210698364U (en) | Extracorporeal vein pipeline for post-dilution hemofiltration | |
| CN204841157U (en) | Threaded connection formula filter equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |