CN211585444U - Laboratory is with inhaling and straining funnel - Google Patents
Laboratory is with inhaling and straining funnel Download PDFInfo
- Publication number
- CN211585444U CN211585444U CN202020181144.2U CN202020181144U CN211585444U CN 211585444 U CN211585444 U CN 211585444U CN 202020181144 U CN202020181144 U CN 202020181144U CN 211585444 U CN211585444 U CN 211585444U
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- China
- Prior art keywords
- funnel
- air bag
- suction filter
- filter cover
- air
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- 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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Abstract
The utility model relates to an experimental facilities field, concretely relates to laboratory is with inhaling and straining funnel. Comprises a funnel, a suction filter cover, a catheter and a balloon. By repeatedly compressing and releasing the air bag, the air bag and the one-way ventilation device on the exhaust hole of the suction filter cover, the air can only be pumped into the air bag from the suction filter cover along the air guide pipe and is discharged out of the air bag; the gas in the suction filter cover is pumped away to form negative pressure, thereby accelerating the liquid to permeate through the filter paper. The utility model has the advantages of simple structure, it can effectively promote filtration efficiency to use convenient.
Description
Technical Field
The utility model relates to an experimental facilities field, concretely relates to laboratory is with inhaling and straining funnel.
Background
Funnels are commonly used in chemical laboratories to separate insoluble materials from solutions. When the existing funnel is used for filtering, liquid permeates through filter paper under the action of self gravity to complete filtering, and the filtering speed is relatively slow; if the reduced pressure filtration is carried out, the structure of the funnel needs to be changed and equipment such as a vacuum pump is used for assisting. In summary, how to simply and conveniently improve the filtration operation efficiency of the funnel in the chemical experiment has become a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above shortcomings of the prior art, an object of the present invention is to provide a laboratory suction filter funnel with simple structure and convenient use.
In order to achieve the above objects and other related objects, the utility model provides a laboratory is with inhaling and straining funnel, including the funnel, inhale filter mantle, pipe and gasbag.
Preferably, the funnel and the suction filter cover are tightly plugged and sealed through a hole plug, the exhaust hole of the suction filter cover is communicated with the air bag through the air guide pipe, and a convection hole is formed in the bottom of the suction filter cover.
Preferably, the exhaust hole of the suction filter cover and the air bag are both provided with one-way ventilating devices, each one-way ventilating device is provided with a valve fixing shaft, and the upper part of each one-way ventilating device is provided with a ventilating valve matched with the valve fixing shaft.
Adopt the technical scheme provided by the utility model, compare with prior art, have following effect of showing: by repeatedly compressing and releasing the air sac, the air sac and the one-way ventilation device on the exhaust hole of the suction filter cover, the air can only be sucked into the air sac from the suction filter cover along the air guide pipe and can be discharged out of the air sac; negative pressure is formed in the suction filter cover, so that liquid can be accelerated to permeate through the filter paper, and the operation efficiency of liquid filtration is improved. The bottom of the filter suction cover is provided with a convection hole, and the filtered filtrate can enter the filtrate in the beaker. The utility model has the advantages of simple structure, it can effectively promote filtration efficiency to use convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the device comprises a funnel, 2, a beaker, 3, a suction filter cover, 4, a hole plug, 5, an exhaust hole, 6, a convection hole, 7, a one-way ventilation device, 7-1, a fixed shaft, 7-2, a ventilation valve, 8, an air duct, 9, an air bag, 10 and filtrate.
Detailed Description
In order to explain the present invention more clearly, the present invention will be further described with reference to the preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
As shown in figure 1, when the utility model is used, the filter paper is firstly put into the funnel 1, the solution to be filtered is injected, when the air bag 9 is extruded, the one-way ventilating device 7 at the front end of the air bag 9 is closed, the one-way ventilating device 7 at the tail end of the air bag 9 is opened, the gas can not flow to the air guide pipe 8 and can only be discharged from the tail part of the air bag 9; when the air bag 9 is loosened, negative pressure is formed in the air bag 9, the one-way ventilating device 7 at the tail end of the air bag 9 is closed, the one-way ventilating device 7 at the front end of the air bag 9 and the exhaust hole 5 is opened, air is sucked into the air bag 9 from the suction filter cover 3 through the air duct 8, negative pressure is formed in the suction filter cover 3, and liquid is accelerated to permeate filter paper; the air bag 9 is squeezed and loosened in a reciprocating way, negative pressure can be kept in the suction filter cover 3, the suction filter is ensured to be continuously carried out, and the filtrate sucked and filtered can be timely discharged into the filtrate 10 in the beaker 2 through the convection hole 6.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (2)
1. The utility model provides a laboratory is with inhaling and strains funnel, its characterized in that includes the funnel, inhales filter mantle, pipe and gasbag, the funnel with it is airtight to inhale the tight stopper of filter mantle through the stopple, inhale the exhaust hole of filter mantle with the gasbag passes through the air duct intercommunication, it is equipped with the convection hole to inhale the filter mantle bottom.
2. The laboratory suction filter funnel according to claim 1, wherein the air vent of the suction filter cover and the air bag are provided with one-way ventilation means, the one-way ventilation means is provided with a valve fixing shaft, and the upper part of the one-way ventilation means is provided with a ventilation valve matched with the valve fixing shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020181144.2U CN211585444U (en) | 2020-02-18 | 2020-02-18 | Laboratory is with inhaling and straining funnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020181144.2U CN211585444U (en) | 2020-02-18 | 2020-02-18 | Laboratory is with inhaling and straining funnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211585444U true CN211585444U (en) | 2020-09-29 |
Family
ID=72580958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020181144.2U Expired - Fee Related CN211585444U (en) | 2020-02-18 | 2020-02-18 | Laboratory is with inhaling and straining funnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211585444U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112168501A (en) * | 2020-10-10 | 2021-01-05 | 东莞市诚丰实业有限公司 | Movable air cushion |
-
2020
- 2020-02-18 CN CN202020181144.2U patent/CN211585444U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112168501A (en) * | 2020-10-10 | 2021-01-05 | 东莞市诚丰实业有限公司 | Movable air cushion |
| CN112168501B (en) * | 2020-10-10 | 2022-04-19 | 东莞市诚丰实业有限公司 | Movable air cushion |
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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 |
Granted publication date: 20200929 Termination date: 20210218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |