CN203196415U - Measuring cup for vacuum filter - Google Patents
Measuring cup for vacuum filter Download PDFInfo
- Publication number
- CN203196415U CN203196415U CN 201320214572 CN201320214572U CN203196415U CN 203196415 U CN203196415 U CN 203196415U CN 201320214572 CN201320214572 CN 201320214572 CN 201320214572 U CN201320214572 U CN 201320214572U CN 203196415 U CN203196415 U CN 203196415U
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- CN
- China
- Prior art keywords
- measuring cup
- convex tendon
- fan
- water conservancy
- conservancy diversion
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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.)
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a measuring cup for a vacuum filter. The measuring cup is characterized in that the upper part of the measuring cup is open; a plurality of spaced convex ribs radially distributed from center to outside are arranged at the inner bottom of the measuring cup, and a ring-shaped outer edge is arranged on the peripheries of the spaced convex ribs, so that a plurality of fan-shaped sunk areas are formed at the bottom of the measuring cup; a plurality of flow guide convex ribs are arranged on outer circular arc sides of the fan-shaped sunk areas; long and short flow guide convex ribs are arranged in a spaced manner; a flow passing hole and a salient point A are formed on the central angle side of each fan-shaped sunk area; the salient point A is arranged on the inner side of the flow passing hole; a membrane is hermetically jointed with the inner bottom of the measuring cup and covers the ring-shaped outer edge; and ring-shaped bosses heaving downward are arranged at the outer bottom of the measuring cup. The measuring cup has the beneficial effects of increasing the effective filtration area of the membrane, improving the filtration efficiency and membrane utilization rate and avoiding the membrane breakage.
Description
Technical field
The utility model relates to a kind of measuring cup for vacuum filter.
Background technology
When carrying out Biochemistry Experiment, usually to filter mixed solution, just need to use a kind of nuclepore membrane filter this moment.Nuclepore membrane filter generally comprises cup and is positioned at the receiving flask of its underpart, between the two every one deck micropore filtering film.Experimental Flowing Object is poured into after the cup, is filtered by micropore filtering film, and fine solid particle wherein and bacterium are namely isolated, and solution splashes into receiving flask after the filter.In order to raise the efficiency, point of attachment between upper cup and receiving flask is provided with the connector with aspirating hole, after can being connected to aspirating hole by the vaccum-pumping equipment of peripheral hardware receiving flask is bled, make and form negative pressure in the receiving flask, accelerate filtrate by the speed of micropore filtering film, so this nuclepore membrane filter is called again the vacuum type filter.
Publication number is that the patent documentation of CN2095709U discloses a kind of millipore filter, be mainly used in the monitoring analysis of the water quality such as ocean, rivers and lakes, this filter is comprised of vacuum cylindrical shell, measuring cup, both support subiculum by measuring cup and are tightly connected, and by inverted binding nut filter membrane, porous plate are pressed in measuring cup and measuring cup and support between the subiculum.Be subjected to structural limitations, the filter membrane Area comparison in the above-mentioned filter is little, and filter efficiency is low, is not suitable for the large quantity of fluid of fast filtering.Publication number is that the patent documentation of CN201894879U discloses a kind of disposable nuclepore membrane filter, comprise that opened upper end, bottom are got through and with the upper cup of miillpore filter sealing be positioned at the receiving flask of its underpart, between described upper cup and the receiving flask be provided with have aspirating hole, with the connector that upper cup and receiving flask link up, described receiving flask is polystyrene component.This patent improves the vacuum-resistant negative pressure intensity of bottle by the material that changes receiving flask, and filtration is not improved the problem that still exist the effective filtration area of filter membrane little, filter efficiency is low.
For this reason, the inventor has designed a kind of disposal vacuum filter, improves filtration, increases the effective filtration area of filter membrane, improves filter efficiency.The utility model relates to measuring cup wherein.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of this utility model provides a kind of measuring cup for vacuum filter, improves filtration, increases the effective filtration area of filter membrane, improves filter efficiency.
To achieve the above object, the utility model has adopted following technical scheme:
A kind of measuring cup for vacuum filter, described measuring cup opened upper end, the inner bottom part of measuring cup is provided with many interval convex tendons that are the outside radial distribution in center, the periphery of interval convex tendon is outer circular edge, form a plurality of fan-shaped sunk areas in the measuring cup bottom like this, external arc side at fan-shaped sunk area is provided with a plurality of water conservancy diversion convex tendons, a plurality of water conservancy diversion convex tendon length interval arranges, central angle side at fan-shaped sunk area is provided with a flowing hole and a salient point A, salient point A is positioned at the inboard of flowing hole, the filter membrane sealing paste is combined in the inner bottom part of measuring cup and covers outer circular edge, and the outer bottom of measuring cup is provided with the annular boss to lower convexity; Wherein, the height of projection of water conservancy diversion convex tendon, interval convex tendon and outer circular edge is 0.5～1.5mm, and the width of water conservancy diversion convex tendon and interval convex tendon is 1～2mm, and adjacent water conservancy diversion convex tendon and the spacing between the convex tendon of interval are not more than 8mm, and the diameter of flowing hole is 3～6mm.
As preferably, each flowing hole of described measuring cup bottom is along same circle distribution, and this circle diameter is greater than the pore aperture of inner tube section.
Be stamped loam cake above the described measuring cup.
The utility model improves filtration owing to having adopted above technical scheme, has increased the effective filtration area of filter membrane, has improved filter efficiency and filter membrane utilization rate, has avoided filter membrane damaged.Especially be fit to high capacity filter, take the 1000ml capacity as example, compared to prior art, filter efficiency improves nearly one times.
Description of drawings
Fig. 1 is the outline drawing (containing receiving flask) of the utility model filter;
Fig. 2 is the structural representation (not containing receiving flask) of the utility model filter;
Fig. 3 is the top view (without filter membrane) of Fig. 2;
Fig. 4 is the structural representation of the utility model connector;
Fig. 5 is the upward view of Fig. 4;
Fig. 6 is the top view of Fig. 4.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is made a detailed explanation.
Embodiment 1:
A kind of disposal vacuum filter as shown in Figure 1 comprises measuring cup 1 and is positioned at the receiving flask 3 of its underpart, and the connector 2 that usefulness has an aspirating hole between described measuring cup 1 and the receiving flask 3 is connected.
Such as Fig. 2, shown in Figure 3, described measuring cup 1 opened upper end, the inner bottom part of measuring cup 1 is provided with many interval convex tendons 12 that are the outside radial distribution in center, the periphery of interval convex tendon 12 is outer circular edge 13, form a plurality of fan-shaped sunk areas 18 in measuring cup 1 bottom like this, external arc side at fan-shaped sunk area 18 is provided with a plurality of water conservancy diversion convex tendons 14,15, a plurality of water conservancy diversion convex tendons 14,15 length intervals arrange, central angle side at fan-shaped sunk area 18 is provided with a flowing hole 16 and a salient point A17, and salient point A17 is positioned at the inboard of flowing hole 16; Filter membrane 4 sealing pastes are combined in the inner bottom part of measuring cup 1 and cover outer circular edge 13; The outer bottom of measuring cup 1 is provided with the annular boss 11 to lower convexity.Be stamped loam cake (not drawing on the figure) above the measuring cup 1.
Such as Fig. 4, Fig. 5, shown in Figure 6, described connector 2 comprises top plate portion 21, inner tube section 23 and the outer connecting cylinder section 22 of integrated injection molding; Top plate portion 21 upper surfaces are formed with annular wall 211, form circular depressed at the upper surface of top plate portion 21 like this, and high central is low and be evenly distributed with a plurality of salient point B212 around the bottom of this circular depressed, and annular wall 211 is fitted with annular boss 11 sealings of measuring cup 1; Inner tube section 23 is located at the central authorities below the top plate portion 21, thereby top plate portion 21 forms a plurality of strips gap 214 at the pore correspondence position with inner tube section 23 by a plurality of support bars 213 of interval moulding, even a plurality of flow guide bars 231 that distribute on the outer peripheral face of inner tube section 23, downward-extension on the flow guide bar 231; Outer connecting cylinder section 22 is located at below the top plate portion 21 and the outside of inner tube section 23, the diameter of its epimere is less than the diameter of hypomere, pass through transition shoulder 221 transition between the two sections, hypomere is connected with receiving flask 3 by screw thread, the path section is provided with the interface 24 of bleeding, the bleed position of interface 24 is higher than the lower nozzle of inner tube section 23, and annular gasket 5 is enclosed within flow guide bar 231 outsides of inner tube section 23 and fits with transition shoulder 221.
In the present embodiment, receiving flask 3 is that polystyrene material makes, and receiving flask is designed to that the bottom is bigger, the slightly tapered shape of the centripetal depression in the bottle end, be tapering less than the conical flasks of 3 degree, receiving flask body middle part indent, body is provided with scale to central concave at the bottle end.The type of filter membrane can be MCE, nylon, PVDF and PES, and the micropore size scope is 0.1 μ m, 0.22 μ m, 0.45 μ m.
During use, receiving flask 3 is threaded in below the connector 2, the bottleneck of receiving flask 3 is pushed against annular gasket 221 sealing on the transition shoulder 221 of connector 2, the interface 24 of bleeding of connector 2 connects vacuum extractor, put into liquid to be filtered in the upper cup 1, liquid enters after filter membrane 4 micro porous filtrations in each fan-shaped sunk area 18, in each water conservancy diversion convex tendon 14,15 water conservancy diversion and the cavity that between the top plate portion 21 of outer bottom that flowing hole 16 flows into measuring cups 1 and connector 2, forms, top plate portion 21 converge and by strip gap 214 and inner tube section 23 inflow receiving flasks 3 in.
The utlity model has higher filter membrane utilization rate, increase the membrane filtration area, improve filter efficiency.The arranging of interval convex tendon, fan-shaped sunk area and water conservancy diversion convex tendon can effectively be supported filter membrane and be avoided damaged; As preferably, be provided with salient point A, can play choked flow, shunting action at the tip, the center of circle of sector region like this, make liquid flow into smoothly flowing hole, avoid the breakage of arching upward of filter membrane center; As preferably, the height of projection of water conservancy diversion convex tendon, interval convex tendon and outer circular edge is 0.5～1.5mm, the width of water conservancy diversion convex tendon and interval convex tendon is 1～2mm, adjacent water conservancy diversion convex tendon and the spacing between the convex tendon of interval are not more than 8mm, the diameter of flowing hole is 3～6mm, and filter membrane is not fragile simultaneously to have so preferably filter efficiency.The setting that cavity and salient point B and strip gap 214 are set above the top plate portion of connector not only can be played secondary filter and cushioning effect, and can improve filter efficiency.As preferably, each flowing hole 16 of described measuring cup 1 bottom is along same circle distribution, and this circle diameter has preferably cake filtration effect like this greater than the pore aperture (being the length in strip gap 214) of inner tube section 23.In inner tube section periphery flow guide bar 231 and 5 pairs of annular gaskets are set and vacuumize air-flow and carry out water conservancy diversion, reduce it to the adverse effect of filter membrane, improve filter efficiency.
It is emphasized that: above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (3)
1. measuring cup that is used for vacuum filter, it is characterized in that, described measuring cup (1) opened upper end, the inner bottom part of measuring cup (1) is provided with the many interval convex tendons (12) that are the outside radial distribution in center, the periphery of interval convex tendon (12) is outer circular edge (13), form a plurality of fan-shaped sunk areas (18) in measuring cup (1) bottom like this, external arc side at fan-shaped sunk area (18) is provided with a plurality of water conservancy diversion convex tendons (14,15), a plurality of water conservancy diversion convex tendons (14,15) the length interval arranges, central angle side at fan-shaped sunk area (18) is provided with a flowing hole (16) and a salient point A(17), salient point A(17) is positioned at the inboard of flowing hole (16), filter membrane (4) sealing paste is combined in the inner bottom part of measuring cup (1) and covers outer circular edge (13), the outer bottom of measuring cup (1) is provided with the annular boss (11) to lower convexity, wherein, described water conservancy diversion convex tendon (14,15), the height of projection of interval convex tendon (12) and outer circular edge (13) is 0.5～1.5mm, water conservancy diversion convex tendon (14,15) and the width of interval convex tendon (12) be 1～2mm, adjacent water conservancy diversion convex tendon (14,15) and the spacing between the interval convex tendon (12) be not more than 8mm, the diameter of flowing hole (16) is 3～6mm.
2. a kind of measuring cup for vacuum filter according to claim 1 is characterized in that, each flowing hole (16) of described measuring cup (1) bottom is along same circle distribution, and this circle diameter is greater than the pore aperture of inner tube section (23).
3. a kind of measuring cup for vacuum filter according to claim 1 is characterized in that, described measuring cup is stamped loam cake above (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214572 CN203196415U (en) | 2013-04-24 | 2013-04-24 | Measuring cup for vacuum filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214572 CN203196415U (en) | 2013-04-24 | 2013-04-24 | Measuring cup for vacuum filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203196415U true CN203196415U (en) | 2013-09-18 |
Family
ID=49140557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320214572 Expired - Fee Related CN203196415U (en) | 2013-04-24 | 2013-04-24 | Measuring cup for vacuum filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203196415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212228A (en) * | 2013-04-24 | 2013-07-24 | 浙江硕华医用塑料有限公司 | Measuring cup for vacuum filter |
-
2013
- 2013-04-24 CN CN 201320214572 patent/CN203196415U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212228A (en) * | 2013-04-24 | 2013-07-24 | 浙江硕华医用塑料有限公司 | Measuring cup for vacuum filter |
| CN103212228B (en) * | 2013-04-24 | 2015-06-03 | 浙江硕华医用塑料有限公司 | Vacuum filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20170424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |