CN202237452U - Structure of pinhead type filter - Google Patents
Structure of pinhead type filter Download PDFInfo
- Publication number
- CN202237452U CN202237452U CN2011203464141U CN201120346414U CN202237452U CN 202237452 U CN202237452 U CN 202237452U CN 2011203464141 U CN2011203464141 U CN 2011203464141U CN 201120346414 U CN201120346414 U CN 201120346414U CN 202237452 U CN202237452 U CN 202237452U
- Authority
- CN
- China
- Prior art keywords
- upper top
- top cover
- lower cover
- diaphragm
- cover
- 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 - Lifetime
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
A structure of a pinhead type filter relates to a filter for a laboratory appliance prior to sample introduction, and comprises an upper top cover (1), a covered edge (2), a filtration film diaphragm (3) and a lower cover (4); the upper top cover (1) is connected to the inner side of the upper end of the lower cover (4) in a clamping manner; the filtration film diaphragm (3) is arranged between the contact surfaces of the upper top cover (1) and the lower cover (4); the covered edge (2) is arranged at the outer part of the junction of the upper top cover (1) and the lower cover (4); and the design of matching of the upper top cover (1) and the lower cover (4) is determined as per the uniform thickness of the diaphragm. The utility model solves the technical problems of residual dead volume and possibility of damage and leakage under large pressure of a conventional pinhead type filter, adopts an improved structure that the matched design of the upper top cover and the lower cover is determined as per the uniform thickness of the diaphragm, so that a gap is not left, and the dead volume is reduced; liquid is sampled, guided and diverged in an arc-shaped manner, the liquid is guided evenly after addition, and the pressure intensity is distributed evenly.
Description
Technical field:
The utility model relates to the filter that uses before the Laboratory Instruments sample introduction, is specifically related to the needle-based structure of filter and improves.
Background technology:
Modern laboratory and all kinds of detection unit all need various chromatographic apparatus.Need carry out sample pre-treatments before the sample introduction.The appearance of pin type filter has solved the inconvenience in using.But general pin type filter also has residual dead volume, deficiencies such as pressure greatly down can breakage, leakage, especially receive the unknown sample of high concentration, high pollution and seldom micro-example be to use and be restricted.
The utility model content:
The purpose of the utility model provides a kind of needle-based filtration device structure; It solves existing pin type filter and has residual dead volume; The technical problem of pressure meeting breakage greatly down, leakage; And a kind of improved structure that adopts does not interspace the minimizing dead volume surely according to the diaphragm uniform thickness during the supporting design of top cover up and down; Liquid application of sample water conservancy diversion, arc is capable disperses design, and drain is even behind the liquid feeding, the pressure distributed uniform.
In order to solve the existing problem of background technology; The utility model is to adopt following technical scheme: it comprises upper top cover, bound edge, filter membrane diaphragm and lower cover; Upper top cover is connected to the inboard, upper end of lower cover; And be provided with the filter membrane diaphragm between the contact-making surface of upper top cover and lower cover, the junction outer setting of upper top cover and lower cover has bound edge.
The supporting design of described upper top cover and lower cover is decided according to the diaphragm uniform thickness, does not interspace, and reduces dead volume.
The utility model is owing to taked above technical measures, and it is high to make the needle-based filter overcome residual dead volume, and pressure is damaged, the leakage defect of meeting greatly down, becomes desirable laboratory filter plant.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
The specific embodiment:
With reference to Fig. 1; This specific embodiment adopts following technical scheme: it comprises upper top cover 1, bound edge 2, filter membrane diaphragm 3 and lower cover 4; Upper top cover 1 is connected to the inboard, upper end of lower cover 4; And be provided with filter membrane diaphragm 3 between the contact-making surface of upper top cover 1 and lower cover 4, upper top cover 1 has bound edge 2 with the junction outer setting of lower cover 4.
Described upper top cover 1 is decided according to the diaphragm uniform thickness with lower cover 4 supporting designs, does not interspace, and reduces dead volume.
This specific embodiment solves existing pin type filter and has residual dead volume, and pressure greatly down can be damaged, the technical problem of leakage, and a kind of improved structure that adopts, and does not interspace the minimizing dead volume surely according to the diaphragm uniform thickness during the supporting design of top cover up and down; Liquid application of sample water conservancy diversion, arc is capable disperses design, and drain is even behind the liquid feeding, the pressure distributed uniform.
Claims (1)
1. needle-based filtration device structure; It is characterized in that it comprises upper top cover (1), bound edge (2), filter membrane diaphragm (3) and lower cover (4); Upper top cover (1) is connected to the inboard, upper end of lower cover (4); And be provided with filter membrane diaphragm (3) between the contact-making surface of upper top cover (1) and lower cover (4), upper top cover (1) has bound edge (2) with the junction outer setting of lower cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203464141U CN202237452U (en) | 2011-09-15 | 2011-09-15 | Structure of pinhead type filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203464141U CN202237452U (en) | 2011-09-15 | 2011-09-15 | Structure of pinhead type filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202237452U true CN202237452U (en) | 2012-05-30 |
Family
ID=46098757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203464141U Expired - Lifetime CN202237452U (en) | 2011-09-15 | 2011-09-15 | Structure of pinhead type filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202237452U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102940987A (en) * | 2012-11-08 | 2013-02-27 | 凡嘉科技（无锡）有限公司 | Disposable syringe filter structure |
| CN103203127A (en) * | 2013-04-02 | 2013-07-17 | 上海正乾生物技术有限公司 | Lipidosome extruding and filtering device |
| CN112237769A (en) * | 2019-07-17 | 2021-01-19 | 杭州特种纸业有限公司 | Needle head type filter |
-
2011
- 2011-09-15 CN CN2011203464141U patent/CN202237452U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102940987A (en) * | 2012-11-08 | 2013-02-27 | 凡嘉科技（无锡）有限公司 | Disposable syringe filter structure |
| CN103203127A (en) * | 2013-04-02 | 2013-07-17 | 上海正乾生物技术有限公司 | Lipidosome extruding and filtering device |
| CN112237769A (en) * | 2019-07-17 | 2021-01-19 | 杭州特种纸业有限公司 | Needle head type filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202237452U (en) | Structure of pinhead type filter | |
| CN201825948U (en) | Combined centrifuge tube for preparing cell blocks by using cast-off cells | |
| CN101992136A (en) | Combined centrifuge tube for preparing cell wax blocks by using exfoliated cells | |
| CN205192825U (en) | Natural sedimentation formula liquid -based cell pelleter | |
| CN104237426A (en) | On-line pretreatment ion chromatogram column switching system and method used for detecting conventional anions and organic acids in biodiesel samples | |
| CN216187247U (en) | Storage device is separated with sample to water quality testing | |
| CN202351156U (en) | Counting chamber and blood analyzer comprising same | |
| CN201304338Y (en) | Quantitative sampling device | |
| CN111690528A (en) | Dairy products processing is with lactic acid bacteria content detection device with contrast function | |
| CN106248464B (en) | Cell climbing sheet efficient dyeing device | |
| CN202837185U (en) | Turning cover structure of bioluminescence detector | |
| CN218047983U (en) | Self-closing pipette for drug analysis | |
| CN218099126U (en) | COD analyzer for water quality detection | |
| CN201510890U (en) | Test tube for taking blood and being submitted for inspection | |
| CN217921579U (en) | Make things convenient for sampling test's purification water treatment facilities | |
| CN220893849U (en) | Reation kettle sampler convenient to installation | |
| CN219179026U (en) | Tablet making device | |
| CN220064067U (en) | Anti-channeling test paper card | |
| CN201653888U (en) | Bracket fixing device for detecting organic substance | |
| CN209400512U (en) | A kind of portable Detecting Pesticide device | |
| CN220912744U (en) | Water sampling tube | |
| CN209559522U (en) | A kind of excrement collecting preservation pipe | |
| CN203556202U (en) | Drawer type filter cartridge structure | |
| CN215985328U (en) | Water intake device for environmental monitoring | |
| CN203678263U (en) | Novel membrane flux measurement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI ANPU EXPERIMENTAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGHAI ANPEL SCIENTIFIC INSTRUMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201609 Shanghai Songjiang District Yexie town leaves 451 Lane 39, room 504, Zheng Lu Patentee after: Shanghai Anpu Experimental Technology Co., Ltd. Address before: 200030 Zhang Zemin Economic Development Zone, Shanghai, Songjiang District Patentee before: Shanghai ANPEL Scientific Instrument Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |