CN103432798B - Syringe filter - Google Patents
Syringe filter Download PDFInfo
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- CN103432798B CN103432798B CN201310350409.1A CN201310350409A CN103432798B CN 103432798 B CN103432798 B CN 103432798B CN 201310350409 A CN201310350409 A CN 201310350409A CN 103432798 B CN103432798 B CN 103432798B
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- pore
- disk body
- lower cover
- cover disk
- upper cover
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Abstract
The invention discloses a syringe filter which comprises an upper cover, a lower cover, a filtering membrane and coating rings, wherein the upper cover comprises an upper cover plate body and an input tube part; the lower cover comprises a lower cover plate body and an output tube part; the upper cover plate body is connected and matched up and down with the lower cover plate body; the edges of the filtering membrane are clamped and fixed through the upper cover plate body and the lower cover plate body, so that a cavity is divided into an upper part and a lower part; peripheries of the upper cover plate body and the lower cover plate body are coated with the coating rings; a plurality of supporting rods A are arranged at the communication part of the tube hole of the input tube part and the cavity; the upper cover plate body is provided with a plurality of arc-shaped bulges A, circular arc-shaped grooves A and radial grooves A, which are formed in the inner wall of the cavity; a plurality of supporting rods B are arranged at the communication part of the tube hole of the output tube part and the cavity; the lower cover plate body is provided with a plurality of arc-shaped bulges B, circular arc-shaped grooves B and radial grooves B, which are formed in the inner wall of the cavity; a plurality of reinforcing ribs are arranged at the bottom of the lower cover plate body. By adopting technical scheme of the invention, the filtering membrane is less susceptible to damage, the filter is less susceptible to blockage, and the filtering speed is stable and high.
Description
Technical field
The present invention relates to a kind of syringe filters.
Background technology
Membrane separation technique is described as " one of new and high technology that mid-term 21st century is the most rising ", it is the most noticeable that wherein microporous barrier is separated in biology, chemical analysis and pharmaceutical field application, do not need to change film and filter rinsed, save complicated, time-consuming preparation, in laboratory, be widely used.Structure of pinhead type filter advantages of simple, with low cost, and good filtration effect, general applicability is strong, can as be laboratory conventional use fast, convenient, the filtration treatment device of small samples reliably, be widely used in during the pre-flock of sample and the aseptic filtration of laboratory biofluid, culture medium and medium additive operate.The patent documentation that for example publication number is CN201988247U discloses a kind of syringe-driven filter, the lower body that comprises upper body, connect with described upper body and the filter membrane between described upper body and lower body, described upper body connects mutually and forms the cavity with entrance and exit with lower body, this cavity is separated into upper and lower two parts by described filter membrane, and the circumferential perimeter of upper body and lower body closed position is coated with coated circle.
But the problem such as the easy local accumulation of impurity foreign matter, lower cover insufficient strength cracky that existing structure of pinhead type filter exists easily breakage of filter membrane, leaches.
Summary of the invention
In order to solve above-mentioned technical problem, the object of this invention is to provide a kind of syringe filters, entrance and exit place at the cavity of accommodating filter membrane all arranges shunting supporting construction, thereby avoid the damaged easily of this place's filter membrane, flow-guiding structure is set simultaneously in cavity, disperse to leach impurity foreign matter, stablize the rate of filtration, and reinforcement is set to improve the intensity of lower cover in lower cover outside.
To achieve the above object, the present invention has adopted following technical scheme:
A kind of syringe filters, comprise upper cover, lower cover, filter membrane and coated circle, upper cover comprises upper cover disk body and is arranged on the input pipe portion of upper cover disk body central authorities, lower cover comprises lower cover disk body and is arranged on the efferent duct portion of lower cover disk body central authorities, thereby upper cover disk body and lower cover disk body are connected up and down, between forms the cavity of accommodating filter membrane, thereby filter membrane edge is fixedly clamped described cavity is separated into upper and lower two parts by upper cover disk body and lower cover disk body, the circumferential perimeter of upper cover disk body and lower cover disk body is coated with coated circle, the pore of described input pipe portion is communicated to the upper part of described cavity, the pore of described efferent duct portion is communicated to the lower part of described cavity, the pore of described input pipe portion and the connectivity part of described cavity are provided with multiple pole A, described multiple pole A converge connection along the radially extension Bing center of input pipe portion pore, described upper cover disk body is formed with multiple arc convex A on described cavity inner wall, arc groove A and radial groove A, described multiple arc convex A are concentric circles and distribute centered by the pore of input pipe portion, between inside and outside two adjacent arc convex A, be arc groove A, between multiple arc groove A, be communicated with by radial groove A, multiple radial groove A are communicated to the pore of described input pipe portion and are emitting shape and distribute, the pore of described efferent duct portion and the connectivity part of described cavity are provided with multiple pole B, described multiple pole B converge connection along the radially extension Bing center of efferent duct portion pore, described lower cover disk body is formed with multiple arc convex B on described cavity inner wall, arc groove B and radial groove B, described multiple arc convex B are concentric circles and distribute centered by the pore of efferent duct portion, between inside and outside two adjacent arc convex B, be arc groove B, between multiple arc groove B, be communicated with by radial groove B, multiple radial groove B are communicated to the pore of described efferent duct portion and are emitting shape and distribute.Described lower cover disk body bottom is provided with multiple reinforcements, and described multiple reinforcements radially extend to surrounding from efferent duct portion.
As preferably, described reinforcement is triangular in shape.
As preferably, described input pipe portion top is provided with the spiral bead for connecting.
As preferably, described pole A and radial groove A shift to install.
As preferably, described pole B and radial groove B shift to install.
As preferably, the pore of described input pipe portion and the connectivity part of described cavity are uniformly distributed four pole A, and described upper cover disk body is uniformly distributed eight radial groove A on described cavity inner wall.
As preferably, the pore of described efferent duct portion and the connectivity part of described cavity are uniformly distributed four pole B, and described lower cover disk body is uniformly distributed eight radial groove B on described cavity inner wall.
As preferably, the pore of described efferent duct portion is that up big and down small tapering is the bellmouth of 1 °～5 °.
As preferably, the pore of described input pipe portion is greater than the pore of described efferent duct portion.
The present invention is owing to having adopted above technical scheme, at the entrance and exit place of the cavity of accommodating filter membrane, multiple poles are all set and form shunting supporting construction, while avoiding like this fluid pressure excessive, filter membrane is herein impacted to breakage, distribute the flow-guiding structure being made up of multiple arc convex, arc groove and radial groove is set at cavity inner wall simultaneously, disperse to leach impurity foreign matter, avoid impurity foreign matters from being blocked, ensure the stable rate of filtration fast, and reinforcement is set to improve the intensity of lower cover at lower cover outer bottom.
Brief description of the drawings
Fig. 1 is the structural representation of syringe filters of the present invention;
Fig. 2 is the structural representation of upper cover;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the structural representation of lower cover;
Fig. 5 is the B-B cutaway view of Fig. 4.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is made a detailed explanation.
Embodiment 1:
A kind of syringe filters as shown in Figure 1, comprise upper cover 1, lower cover 2, filter membrane 3 and coated circle 4, upper cover 1 comprises upper cover disk body 16 and is arranged on the input pipe portion 17 of upper cover disk body 16 central authorities, lower cover 2 comprises lower cover disk body 26 and is arranged on the efferent duct portion 27 of lower cover disk body 26 central authorities, thereby upper cover disk body 16 and lower cover disk body 26 are connected up and down, between forms the cavity of accommodating filter membrane 3, thereby filter membrane 3 edges are fixedly clamped described cavity are separated into upper and lower two parts by upper cover disk body 16 and lower cover disk body 26, the circumferential perimeter of upper cover disk body 16 and lower cover disk body 26 is coated with coated circle 4, the pore 11 of described input pipe portion 17 is communicated to the upper part of described cavity, the pore 21 of described efferent duct portion 27 is communicated to the lower part of described cavity.
As Fig. 2, shown in Fig. 3, the pore 11 of described input pipe portion 17 is provided with multiple pole A14 with the connectivity part of described cavity, described multiple pole A14 converge connection along the radially extension Bing center of input pipe portion 17 pores 11, described upper cover disk body 16 is formed with multiple arc convex A12 on described cavity inner wall, arc groove A13 and radial groove A15, described multiple arc convex A12 are concentric circles and distribute centered by the pore 11 of input pipe portion 17, between inside and outside two adjacent arc convex A12, be arc groove A13, between multiple arc groove A13, be communicated with by radial groove A15, multiple radial groove A15 are communicated to the pore 11 of described input pipe portion 17 and are emitting shape and distribute.
As Fig. 4, shown in Fig. 5, the pore 21 of described efferent duct portion 27 is provided with multiple pole B24 with the connectivity part of described cavity, described multiple pole B24 converge connection along the radially extension Bing center of efferent duct portion 27 pores 21, described lower cover disk body 26 is formed with multiple arc convex B22 on described cavity inner wall, arc groove B23 and radial groove B25, described multiple arc convex B22 are concentric circles and distribute centered by the pore 21 of efferent duct portion 27, between inside and outside two adjacent arc convex B22, be arc groove B23, between multiple arc groove B23, be communicated with by radial groove B25, multiple radial groove B25 are communicated to the pore 21 of described efferent duct portion 27 and are emitting shape and distribute, described lower cover disk body 26 bottoms are provided with multiple reinforcements 28, described multiple reinforcements 28 radially extend to surrounding from efferent duct portion 27.Described reinforcement 28 is triangular in shape.
In the present embodiment, described input pipe portion 17 tops are provided with the spiral bead 18 for connecting, and connect.Described pole A14 and radial groove A15 shift to install.Described pole B24 and radial groove B25 shift to install.The pore 11 of described input pipe portion 17 is uniformly distributed four pole A14 with the connectivity part of described cavity, and described upper cover disk body 16 is uniformly distributed eight radial groove A15 on described cavity inner wall.The pore 21 of described efferent duct portion 27 is uniformly distributed four pole B24 with the connectivity part of described cavity, and described lower cover disk body 26 is uniformly distributed eight radial groove B25 on described cavity inner wall.The pore 21 of described efferent duct portion 27 for up big and down small tapering be the bellmouth of 1 °～5 °.The pore 11 of described input pipe portion 17 is greater than the pore 21 of described efferent duct portion 27.
It is emphasized that: be only preferred embodiment of the present invention above, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.
Claims (9)
1. a syringe filters, comprise upper cover (1), lower cover (2), filter membrane (3) and coated circle (4), upper cover (1) comprises upper cover disk body (16) and is arranged on the input pipe portion (17) of upper cover disk body (16) central authorities, lower cover (2) comprises lower cover disk body (26) and is arranged on the efferent duct portion (27) of lower cover disk body (26) central authorities, upper cover disk body (16) and lower cover disk body (26) thus the between that is connected up and down forms the cavity of accommodating filter membrane (3), filter membrane (3) edge by upper cover disk body (16) and lower cover disk body (26) thus be fixedly clamped described cavity be separated into upper and lower two parts, the circumferential perimeter of upper cover disk body (16) and lower cover disk body (26) is coated with coated circle (4), the pore (11) of described input pipe portion (17) is communicated to the upper part of described cavity, the pore (21) of described efferent duct portion (27) is communicated to the lower part of described cavity, it is characterized in that, the pore (11) of described input pipe portion (17) is provided with multiple pole A(14 with the connectivity part of described cavity), described multiple pole A(14) converge connection along the radially extension Bing center of input pipe portion (17) pore (11), described upper cover disk body (16) is formed with multiple arc convex A(12 on described cavity inner wall), arc groove A(13) and radial groove A(15), described multiple arc convex A(12) centered by the pore (11) of input pipe portion (17), be concentric circles distribute, inside and outside two adjacent arc convex A(12) between be arc groove A(13), multiple arc groove A(13) between by radial groove A(15) be communicated with, multiple radial groove A(15) be communicated to the pore (11) of described input pipe portion (17) and be emitting shape distribution, the pore (21) of described efferent duct portion (27) is provided with multiple pole B(24 with the connectivity part of described cavity), described multiple pole B(24) converge connection along the radially extension Bing center of efferent duct portion (27) pore (21), described lower cover disk body (26) is formed with multiple arc convex B(22 on described cavity inner wall), arc groove B(23) and radial groove B(25), described multiple arc convex B(22) centered by the pore (21) of efferent duct portion (27), be concentric circles distribute, inside and outside two adjacent arc convex B(22) between be arc groove B(23), multiple arc groove B(23) between by radial groove B(25) be communicated with, multiple radial groove B(25) be communicated to the pore (21) of described efferent duct portion (27) and be emitting shape distribution, described lower cover disk body (26) bottom is provided with multiple reinforcements (28), described multiple reinforcements (28) radially extend to surrounding from efferent duct portion (27).
2. a kind of syringe filters according to claim 1, is characterized in that, described reinforcement (28) is triangular in shape.
3. a kind of syringe filters according to claim 1, is characterized in that, described input pipe portion (17) top is provided with the spiral bead (18) for connecting.
4. a kind of syringe filters according to claim 1, is characterized in that, described pole A(14) and radial groove A(15) shift to install.
5. a kind of syringe filters according to claim 1, is characterized in that, described pole B(24) and radial groove B(25) shift to install.
6. a kind of syringe filters according to claim 1, it is characterized in that, the pore (11) of described input pipe portion (17) is uniformly distributed four pole A(14 with the connectivity part of described cavity), described upper cover disk body (16) is uniformly distributed eight radial groove A(15 on described cavity inner wall).
7. a kind of syringe filters according to claim 1, it is characterized in that, the pore (21) of described efferent duct portion (27) is uniformly distributed four pole B(24 with the connectivity part of described cavity), described lower cover disk body (26) is uniformly distributed eight radial groove B(25 on described cavity inner wall).
8. a kind of syringe filters according to claim 1, is characterized in that, the pore (21) of described efferent duct portion (27) is that up big and down small tapering is the bellmouth of 1 °～5 °.
9. a kind of syringe filters according to claim 1, is characterized in that, the pore (11) of described input pipe portion (17) is greater than the pore (21) of described efferent duct portion (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350409.1A CN103432798B (en) | 2013-08-12 | 2013-08-12 | Syringe filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350409.1A CN103432798B (en) | 2013-08-12 | 2013-08-12 | Syringe filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103432798A CN103432798A (en) | 2013-12-11 |
| CN103432798B true CN103432798B (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310350409.1A Active CN103432798B (en) | 2013-08-12 | 2013-08-12 | Syringe filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN103432798B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020208309A1 (en) * | 2019-04-09 | 2020-10-15 | Biomerieux | Device for determining the presence of a bacteriological contamination in a fluid |
| FR3094986A1 (en) * | 2019-04-09 | 2020-10-16 | bioMérieux | Device for determining bacteriological contamination in a fluid |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107213718A (en) * | 2017-06-14 | 2017-09-29 | 世源科技(嘉兴)医疗电子有限公司 | Veress needle filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6035907A (en) * | 1998-08-17 | 2000-03-14 | Dart Industries Inc. | Combined measuring cup, funnel and strainer utensil |
| CN1778450A (en) * | 2004-11-26 | 2006-05-31 | 鸿富锦精密工业（深圳）有限公司 | Filter and method for filtering nanometer materials |
| CN103212227A (en) * | 2013-04-24 | 2013-07-24 | 浙江硕华医用塑料有限公司 | Disposable vacuum filter |
| CN203417509U (en) * | 2013-08-12 | 2014-02-05 | 浙江硕华医用塑料有限公司 | Syringe needle filter |
-
2013
- 2013-08-12 CN CN201310350409.1A patent/CN103432798B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6035907A (en) * | 1998-08-17 | 2000-03-14 | Dart Industries Inc. | Combined measuring cup, funnel and strainer utensil |
| CN1778450A (en) * | 2004-11-26 | 2006-05-31 | 鸿富锦精密工业（深圳）有限公司 | Filter and method for filtering nanometer materials |
| CN103212227A (en) * | 2013-04-24 | 2013-07-24 | 浙江硕华医用塑料有限公司 | Disposable vacuum filter |
| CN203417509U (en) * | 2013-08-12 | 2014-02-05 | 浙江硕华医用塑料有限公司 | Syringe needle filter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020208309A1 (en) * | 2019-04-09 | 2020-10-15 | Biomerieux | Device for determining the presence of a bacteriological contamination in a fluid |
| FR3094986A1 (en) * | 2019-04-09 | 2020-10-16 | bioMérieux | Device for determining bacteriological contamination in a fluid |
| FR3094987A1 (en) * | 2019-04-09 | 2020-10-16 | bioMérieux | Device for determining bacteriological contamination in a fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103432798A (en) | 2013-12-11 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313220 Deqing County Province, Huzhou City, the town of bell hill road, No., No. 148 Patentee after: Zhejiang Sorfa Life Science Research Co., Ltd. Address before: 313220 Deqing County Province, Huzhou City, the town of bell hill road, No., No. 148 Patentee before: Zhejiang Sorfa Medical Plastic Co.,Ltd. |