CN220546688U - Sleeve type filtering device - Google Patents
Sleeve type filtering device Download PDFInfo
- Publication number
- CN220546688U CN220546688U CN202322066759.7U CN202322066759U CN220546688U CN 220546688 U CN220546688 U CN 220546688U CN 202322066759 U CN202322066759 U CN 202322066759U CN 220546688 U CN220546688 U CN 220546688U
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- filter
- sleeve
- cavity
- filtering
- flange
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- 238000001914 filtration Methods 0.000 title claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 63
- 239000012528 membrane Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 abstract description 26
- 238000009434 installation Methods 0.000 description 15
- 239000000243 solution Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a sleeve type filtering device, which adopts a containing pipe, wherein the containing pipe is provided with a containing cavity, a filtering sleeve part is contained in the containing cavity and is provided with a filtering cavity, a mounting seat of a filtering component is connected with the end part of the filtering sleeve, a sealing plate is elastically connected with the mounting seat, and a filtering membrane is arranged in the filtering cavity. The seal plate has a sealing position and a filtering position. The utility model provides a sleeve type filter equipment's simple structure, in concrete operation, the user can hold the holding pipe with one hand, holds filter tube with one hand, pushes down filter tube again, can filter the sample liquid, has made things convenient for the user to filter the sample liquid by one person to a great extent, and filters the sample liquid comparatively laborsaving.
Description
Technical Field
The utility model relates to the technical field of test instruments, in particular to a sleeve type filtering device.
Background
At present, the sample liquid is subjected to a filtering step before liquid chromatography detection, and a conventional filtering method adopts a needle filter, so that the capacity is small, and meanwhile, the sample liquid is filtered and adsorbed by vacuum pumping, so that the sample liquid is more laborious and is not used for operation by a single person. Specifically, the needle filter is placed in the centrifuge tube, and after the centrifuge tube is placed stably, a user can operate the needle filter with both hands, so that the needle filter is inconvenient.
Disclosure of Invention
The utility model mainly aims to provide a sleeve type filtering device which aims at saving labor in liquid correction filtering and facilitating operation by a single person.
To achieve the above object, the present utility model provides a sleeve type filtering device comprising:
a receiving tube provided with a receiving chamber;
a filter sleeve partially received within the receiving cavity, the filter sleeve defining a filter cavity; and
the filter assembly comprises a mounting seat, a filter membrane and a sealing plate, wherein the mounting seat is connected to the end part of the filter sleeve, the sealing plate is elastically connected to the mounting seat, and the filter membrane is arranged in the filter cavity;
the sealing plate is provided with a sealing position and a filtering position, and when the sealing plate is positioned at the sealing position, the sealing plate is elastically abutted against the mounting seat to separate the filtering cavity from the accommodating cavity; when the filter is in the filtering position, the sealing plate overcomes the action of elasticity and communicates the filter cavity with the accommodating cavity.
In an alternative implementation, the sealing plate comprises a fixed grid, a spring and a plate body, the side wall of the filtering cavity is convexly provided with a propping flange, the edge of the filtering membrane is attached to the propping flange, the mounting seat is convexly provided with a stopping flange, and the spring is connected with the fixed grid and the plate body;
the spring provides elasticity so that the fixed grille is propped against the surface of the filtering membrane, which is away from the propping flange, and the plate body is propped against the stopping flange.
In an alternative implementation, a first mounting sleeve is formed by protruding one side of the fixed grille towards the plate body, a second mounting sleeve is formed by protruding one side of the plate body towards the fixed grille, the second mounting sleeve is arranged on the first mounting sleeve, and the spring is accommodated in the first mounting sleeve and the second mounting sleeve.
In an alternative implementation, the inner wall surface of the first mounting sleeve is convexly provided with a first limit flange, the outer side surface of the second mounting sleeve is convexly provided with a second limit flange, and the first limit flange abuts against the second limit flange.
In an alternative implementation, the sealing plate further comprises a first sealing ring, and the first sealing ring is connected to the plate body and elastically abuts against the stop flange.
In an alternative implementation, the mounting seat comprises a first seat body and a second seat body, the first seat body is sleeved at the end part of the filter sleeve, the second seat body is detachably connected with the first seat body, and the stop flange is arranged on the second seat body.
In an alternative implementation, one of the first seat body and the second seat body is provided with external threads, and the other of the first seat body and the second seat body is provided with internal threads, and the first seat body and the second seat body are in threaded connection.
In an alternative implementation, the mounting seat further comprises a second sealing ring sleeved on the outer side of the first seat body and elastically abutted with the cavity side wall of the accommodating cavity.
In an alternative embodiment, the exterior of the filter sleeve is convexly formed with a plurality of spaced graduation marks.
According to the technical scheme, the accommodating pipe is provided with the accommodating cavity, the filter sleeve part is accommodated in the accommodating cavity and is provided with the filter cavity, the mounting seat of the filter assembly is connected to the end part of the filter sleeve, the sealing plate is elastically connected to the mounting seat, and the filter membrane is arranged in the filter cavity. The seal plate has a sealing position and a filtering position. In this application, closing plate normality is in sealing position, and closing plate elasticity butt is in the mount pad when sealing position, separates the filter chamber with hold the chamber, and filtration membrane is located the filter chamber this moment. When needs filter the sample liquid, the sample liquid holding holds the intracavity, holds the intracavity with filter tube is arranged in to filter tube, and downwardly moving filter tube, under the effect of sample hydraulic pressure force, the closing plate overcomes the elasticity effect, with filter chamber and hold the chamber intercommunication, the closing plate is in filtering position this moment promptly, the sample liquid gets into the filter chamber by the clearance between closing plate and the mount pad and filters it by filtration membrane. The utility model provides a sleeve type filter equipment's simple structure, in concrete operation, the user can hold the holding pipe with one hand, holds filter tube with one hand, pushes down filter tube again, can filter the sample liquid, has made things convenient for the user to filter the sample liquid by one person to a great extent, and filters the sample liquid comparatively laborsaving.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a sleeve filter device according to an embodiment of the present utility model;
FIG. 2 is an exploded view of the sleeve filter device of FIG. 1;
FIG. 3 is a top view of the sleeve filter device shown in FIG. 1;
FIG. 4 is a cross-sectional view of the sleeve filter device shown in FIG. 3 taken along the direction IV-IV;
fig. 5 is an enlarged detail view at a in fig. 4.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Sleeve type filtering device | 32 | Filtering membrane |
| 10 | Accommodating tube | 33 | Sealing plate |
| 10a | Accommodating chamber | 331 | Fixed grille |
| 20 | Filter sleeve | 3311 | First mounting sleeve |
| 20a | Filter cavity | 3312 | First limit flange |
| 21 | Abutment flange | 332 | Spring |
| 31 | Mounting base | 333 | Board body |
| 311 | First seat body | 3331 | Second mounting sleeve |
| 312 | Second seat body | 3332 | Second limit flange |
| 313 | Second sealing ring | 334 | First sealing ring |
| 3121 | Stop flange |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Referring to fig. 1 to 5, the present utility model proposes a sleeve type filtering device 100.
In an embodiment of the present utility model, the sleeve filter device 100 includes: a housing tube 10, the housing tube 10 being provided with a housing chamber 10a; a filter cartridge 20, the filter cartridge 20 being partially accommodated in the accommodating chamber 10a, the filter cartridge 20 being formed with a filter chamber 20a; the filter assembly comprises a mounting seat 31, a filter membrane 32 and a sealing plate 33, wherein the mounting seat 31 is connected to the end part of the filter sleeve 20, the sealing plate 33 is elastically connected to the mounting seat 31, and the filter membrane 32 is arranged in the filter cavity 20a;
the sealing plate 33 has a sealing position and a filtering position, and when the sealing plate 33 is in the sealing position, the sealing plate 33 is elastically abutted against the mounting seat 31 to separate the filtering cavity 20a from the accommodating cavity 10a; the sealing plate 33, in the filtering position, is in communication with the filtering chamber 20a and the containing chamber 10a against the action of the elastic force.
Specifically, hold pipe 10 and filter tube 20 and make by plastic material, preferably hold pipe 10 and filter tube 20 and make by transparent plastic material to the convenience of customers observes the sample liquid, holds the outside of pipe 10 and filter tube 20 and all has a plurality of interval setting's scale mark through injection moulding, and a plurality of scale marks set up along its length direction interval, through setting up this scale mark, convenience of customers observes the control to the volume of sample liquid.
The holding tube 10 and the filter sleeve 20 are cylindrical shell-shaped cavity structures, a holding cavity 10a and a filter cavity 20a are respectively formed, the diameter of the filter sleeve 20 is smaller than that of the holding tube 10, the filter sleeve 20 can extend into the holding cavity 10a, a mounting seat 31 of the filter assembly is connected to the end part of the filter sleeve 20, a sealing plate 33 is elastically connected to the mounting seat 31, and a filter membrane 32 is arranged in the filter cavity 20 a. The sealing plate 33 has a sealing position and a filtering position. In this application, the sealing plate 33 is normally at a sealing position, and when the sealing plate 33 is elastically abutted against the mounting seat 31 at the sealing position, the filter chamber 20a and the accommodating chamber 10a are separated, and the filter membrane 32 is located in the filter chamber 20 a. When the sample liquid is required to be filtered, the sample liquid is contained in the containing cavity 10a, the filter sleeve 20 is placed in the containing cavity 10a, the filter sleeve 20 is moved downwards, under the action of the sample liquid pressure, the sealing plate 33 overcomes the elastic force to communicate the filter cavity 20a with the containing cavity 10a, namely, the sealing plate 33 is at the filtering position, and the sample liquid enters the filter cavity 20a from a gap between the sealing plate 33 and the mounting seat 31 and is filtered by the filter membrane 32. The sleeve type filtering device 100 has the advantages that the structure is simple, in specific operation, a user can hold the containing tube 10 by one hand and hold the filtering sleeve 20 by one hand, then the filtering sleeve 20 is pressed downwards, sample liquid can be filtered, the filtering device is greatly convenient for a user to filter the sample liquid by a single person, and the filtering of the sample liquid is labor-saving.
Referring to fig. 2 again, in the present embodiment, the sealing plate 33 includes a fixed grid 331, a spring 332 and a plate 333, wherein the cavity side wall of the filter cavity 20a is convexly formed into an abutment flange 21 by an integral molding process, the diameter of the abutment flange 21 is smaller than that of the filter membrane 32, and the filter membrane 32 is disposed in the filter cavity 20a, and the edge thereof is fitted to the abutment flange 21. The mounting seat 31 is provided with a protruding stop flange 3121, wherein the mounting seat 31 comprises a first seat body 311 and a second seat body 312, the first seat body 311 is sleeved at the end of the filter sleeve 20, an external thread is formed on the outer side, an internal thread is formed on the inner side of the second seat body 312, a through hole for communicating with the filter cavity 20a is formed on the second seat body 312, and the stop flange 3121 is formed on the opening of the through hole.
The whole of fixed grid 331 is cylindricly, and a plurality of dodging holes that run through its upper and lower two surfaces are seted up on its surface, and the centre of a circle position of fixed grid 331 has the first installation sleeve 3311 towards one side of plate 333 through the shaping, and the protruding formation second installation sleeve 3331 of establishing of one side towards fixed grid 331 of plate 333, and the diameter of second installation sleeve 3331 is less than first installation sleeve 3311, and the internal face of first installation sleeve 3311 has first limit flange 3312 through the shaping simultaneously, and the lateral surface of second installation sleeve 3331 has second limit flange 3332 through the shaping.
In actual installation, a part of the spring 332 is placed in the first installation sleeve 3311, the second installation sleeve 3331 is clamped into the first installation sleeve 3311, the first installation sleeve 3311 and the second installation sleeve 3331 can be limited and fixed by abutting the first limiting flange 3312 and the second limiting flange 3332, the spring 332 is accommodated in the first installation sleeve 3311 and the second installation sleeve 3332, and meanwhile the spring 332 is elastically abutted against the plate 333 and the fixed grid 331 in a compression mode. The filtering membrane 32 is placed against the flange 21, the plate 333 and the fixed grating 331 are placed in the filtering cavity 20a, the second seat 312 is screwed on the first seat 311, the stop flange 3121 is abutted against the edge of the plate 333, and the plate 333, the fixed grating 331 and the filtering membrane 32 are limited in the filtering cavity 20 a. The filter component is simple in structure and convenient to produce and assemble.
Further, the sealing plate 33 further includes a first sealing ring 334, the first sealing ring 334 is made of a silicone rubber material and is adhered to the plate 333 by glue, and when the plate 333 is accommodated in the filter cavity 20a, the first sealing ring 334 is elastically abutted against the stop flange 3121 under the elastic force of the spring 332. By arranging the first sealing ring 334, the sealing performance of the filter cavity 20a is improved in the sealing position, and the sample liquid in the filter cavity 20a is prevented from flowing out from the gap between the plate 333 and the stop flange 3121.
Further, the mounting seat 31 further includes a second sealing ring 313, an installation slot is formed on an outer side surface of the first seat 311 in a surrounding manner, the second sealing ring 313 is sleeved on the outer side of the first seat 311, and when the filter casing 20 is accommodated in the accommodating cavity 10a, the second sealing ring 313 elastically abuts against a side wall surface of the accommodating cavity 10 a. This application can improve the leakproofness between filter tube 20 and the holding pipe 10 through setting up this second sealing washer 313, namely, at filter tube 20 push down, when filtering the sample liquid, can avoid the sample liquid to flow upwards by the clearance between the two, and then improves the filtration efficiency of sleeve type filter device 100 to the school liquid.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (9)
1. A sleeve filter device, comprising:
a receiving tube provided with a receiving chamber;
a filter sleeve partially received within the receiving cavity, the filter sleeve defining a filter cavity; and
the filter assembly comprises a mounting seat, a filter membrane and a sealing plate, wherein the mounting seat is connected to the end part of the filter sleeve, the sealing plate is elastically connected to the mounting seat, and the filter membrane is arranged in the filter cavity;
the sealing plate is provided with a sealing position and a filtering position, and when the sealing plate is positioned at the sealing position, the sealing plate is elastically abutted against the mounting seat to separate the filtering cavity from the accommodating cavity; when the filter is in the filtering position, the sealing plate overcomes the action of elasticity and communicates the filter cavity with the accommodating cavity.
2. The sleeve filter device of claim 1, wherein the sealing plate comprises a fixed grid, a spring and a plate body, wherein the cavity side wall of the filter cavity is convexly provided with a propping flange, the edge of the filter membrane is attached to the propping flange, the mounting seat is convexly provided with a stopping flange, and the spring is connected with the fixed grid and the plate body;
the spring provides elasticity so that the fixed grille is propped against the surface of the filtering membrane, which is away from the propping flange, and the plate body is propped against the stopping flange.
3. The sleeve filter device of claim 2 wherein a side of the fixed grid facing the plate body is formed with a first mounting sleeve and a side of the plate body facing the fixed grid is formed with a second mounting sleeve, the second mounting sleeve being disposed within the first mounting sleeve, the spring being received within the first and second mounting sleeves.
4. A sleeve filter device according to claim 3, wherein the inner wall surface of the first mounting sleeve is provided with a first limit flange in a protruding manner, the outer side surface of the second mounting sleeve is provided with a second limit flange in a protruding manner, and the first limit flange abuts against the second limit flange.
5. A sleeve filter device according to claim 3, wherein the sealing plate further comprises a first sealing ring connected to the plate body and resiliently abutting the stop flange.
6. A sleeve filter device according to claim 3, wherein the mounting base comprises a first base body and a second base body, the first base body is sleeved on the end portion of the filter sleeve, the second base body is detachably connected to the first base body, and the stop flange is arranged on the second base body.
7. The sleeve filter device of claim 6 wherein one of said first housing and said second housing is externally threaded and the other of said first housing and said second housing is internally threaded, said first housing and said second housing being threadably coupled.
8. The sleeve filter device of claim 6 wherein said mounting further comprises a second seal ring disposed about the outside of said first housing and in resilient abutment with the cavity side wall of said receiving cavity.
9. A sleeve filter device according to any one of claims 1 to 8, wherein the exterior of the filter sleeve is convexly formed with a plurality of spaced graduation marks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322066759.7U CN220546688U (en) | 2023-08-03 | 2023-08-03 | Sleeve type filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322066759.7U CN220546688U (en) | 2023-08-03 | 2023-08-03 | Sleeve type filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220546688U true CN220546688U (en) | 2024-03-01 |
Family
ID=90006735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322066759.7U Active CN220546688U (en) | 2023-08-03 | 2023-08-03 | Sleeve type filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220546688U (en) |
-
2023
- 2023-08-03 CN CN202322066759.7U patent/CN220546688U/en active Active
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| GR01 | Patent grant |