CN215654063U

CN215654063U - Positive pressure sample filter

Info

Publication number: CN215654063U
Application number: CN202122315315.3U
Authority: CN
Inventors: 张艳阁; 王路; 赵付荣; 吴铜鹏; 熊维彬
Original assignee: Minjiang University
Current assignee: Minjiang University
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-01-28
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a positive pressure sample filter which comprises an L-shaped base, wherein a storage seat is arranged on one side of the bottom of the L-shaped base, a liquid receiving bottle is placed in the storage seat, an injector is arranged above the liquid receiving bottle, a bearing frame is arranged on the outer wall of one side of the injector, one end, far away from the injector, of the bearing frame is fixedly connected with the inner wall of the L-shaped base, a liquid outlet is arranged at the central position of the bottom of the injector, a filtering base plate is installed at the bottom of the injector outside the liquid outlet, a filtering membrane is arranged in the filtering base plate below the liquid outlet, a liquid storage tank is arranged above the injector, a liquid injection port is formed in the outer wall of one side of the liquid storage tank, and a lower grinding port is formed in the bottom end of the liquid storage tank. The utility model not only avoids the phenomenon that the upper ground and the lower ground are loosened with the pressurizing pipeline and the injector when the filter is used, improves the convenience of the filter when in use, but also improves the stability of the filter when in use.

Description

Positive pressure sample filter

Technical Field

The utility model relates to the technical field of filters, in particular to a positive pressure sample filter.

Background

In routine experiments, it is often necessary to filter small volumes of, say, 20ml of environmental sample, typically directly with a syringe, in a manner which is labor intensive and requires the use of a corresponding positive pressure sample filter.

The filter on the market is inconvenient to fasten the upper grinding opening and the lower grinding opening, so that the filter is easy to loosen with a pressurizing pipeline and a syringe, and people are often troubled.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positive pressure sample filter to solve the problem that the filter in the background technology is inconvenient to fasten the upper grinding opening and the lower grinding opening.

In order to achieve the purpose, the utility model provides the following technical scheme: a positive pressure sample filter comprises an L-shaped base, wherein a holding seat is arranged on one side of the bottom of the L-shaped base, a liquid receiving bottle is placed inside the holding seat, an injector is arranged above the liquid receiving bottle, a bearing frame is arranged on the outer wall of one side of the injector, one end, far away from the injector, of the bearing frame is fixedly connected with the inner wall of the L-shaped base, a liquid outlet nozzle is arranged at the central position of the bottom of the injector, a filter pad plate is installed at the bottom of the injector outside the liquid outlet nozzle, a filter membrane is arranged inside the filter pad plate below the liquid outlet nozzle, a liquid storage tank is arranged above the injector, a liquid injection port is arranged on the outer wall of one side of the liquid storage tank, a lower grinding port is arranged at the bottom end of the liquid storage tank, the bottom end of the lower grinding port is communicated with the top of the injector, a lower clamp is installed at the contact position of the lower grinding port and the injector, and an upper grinding port is arranged at the top end of the liquid storage tank, the top of L type base is equipped with the worker's type frame, the central point department on worker's type frame top installs the force (forcing) pump, the pressurization pipeline is installed to the one end of force (forcing) pump, the one end that the force (forcing) pump was kept away from to the pressurization pipeline is linked together with the top of last mill mouth, the contact position department of pressurization pipeline and last mill mouth installs the upper end clip.

Preferably, the rubber gasket is installed to the bottom of L type base, the L type base bottom of rubber gasket position department is equipped with two sets of protruding type fastening grooves to reach skid-proof mesh.

Preferably, the two outer side walls of the bottom of the injector are provided with mounting frames, and the inner sides of the mounting frames are provided with positioning rings so that the fitting grooves can rotate to the positions of the mounting frames.

Preferably, the outer walls of the two sides of the positioning ring are provided with fitting grooves, and the fitting grooves are symmetrical about the center line of the positioning ring, so that the positioning ring can be detached to the outside of the placement frame through the fitting grooves.

Preferably, the outer wall of the filter base plate is provided with a connecting ring, and one end of the connecting ring, which is far away from the filter base plate, is fixedly connected with one end of the positioning ring, so that the filter base plate is detached through the positioning ring.

Preferably, the central position department of protruding type fastening inslot portion is equipped with protruding type fastening block, the bottom of protruding type fastening block extend to the outside of protruding type fastening inslot and with the top fixed connection of rubber gasket to install the rubber gasket in the bottom of L type base firmly.

Compared with the prior art, the utility model has the beneficial effects that: the positive pressure sample filter not only avoids the phenomenon that the upper ground and the lower ground are loosened with a pressurizing pipeline and an injector when the filter is used, improves the convenience of the filter when in use, but also improves the stability of the filter when in use;

(1) the upper end clamp is arranged at the connecting position between the upper ground and the pressurizing pipeline, so that the contact position between the pressurizing pipeline and the upper ground is fastened through the upper end clamp, and the lower end clamp is arranged at the connecting position between the lower ground and the injector, so that the contact position between the lower ground and the injector is fastened through the lower end clamp, and the phenomenon that the upper ground, the lower ground, the pressurizing pipeline and the injector are loosened when the filter is used is avoided;

(2) the positioning ring is driven to be positioned on the inner side of the mounting frame to rotate through the connecting ring by rotating the filtering base plate, when the fit groove rotates to the position of the mounting frame, the filtering base plate is pulled downwards, so that the positioning ring can be detached to the outer part of the mounting frame, the filtering base plate is convenient to detach, the filtering membrane can be convenient to clean and maintain, and the convenience of the filter in use is improved;

(3) through the protruding type fastening block of protruding type fastening inslot portion, set up the rubber gasket firm in the bottom of L type base, when the filter was placed in the desktop, the rubber gasket then can contact with the top of desktop to make the frictional force between filter and the desktop obtain promoting, and then can reduce the filter and produce the phenomenon of displacement because of external factor, thereby improved the stability when filter used.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 1 at B according to the present invention;

fig. 4 is a schematic bottom view of the filter pad of the present invention.

In the figure: 1. an L-shaped base; 2. a carrier; 3. an injector; 4. a lower end clip; 5. a jig frame; 6. a pressure pump; 7. a pressurized conduit; 8. an upper end clamp; 9. grinding the opening; 10. a liquid injection port; 11. a liquid storage tank; 12. grinding the opening downwards; 13. a liquid receiving bottle; 14. a placement seat; 15. a mounting frame; 16. a liquid outlet nozzle; 17. a positioning ring; 18. a connecting ring; 19. filtering the base plate; 20. filtering the membrane; 21. a male fastening groove; 22. a male fastening block; 23. a rubber gasket; 24. fitting the groove.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a positive pressure sample filter comprises an L-shaped base 1, wherein an object placing seat 14 is arranged on one side of the bottom of the L-shaped base 1, a rubber gasket 23 is arranged at the bottom end of the L-shaped base 1, and two groups of convex fastening grooves 21 are formed in the bottom of the L-shaped base 1 at the position of the rubber gasket 23;

when in use, the rubber gasket 23 is firmly arranged at the bottom end of the L-shaped base 1, so that the purpose of skid resistance is achieved;

a convex fastening block 22 is arranged at the center position inside the convex fastening groove 21, and the bottom end of the convex fastening block 22 extends to the outside of the convex fastening groove 21 and is fixedly connected with the top end of the rubber gasket 23;

when in use, the convex fastening block 22 is arranged inside the convex fastening groove 21, so that the rubber gasket 23 is firmly arranged at the bottom end of the L-shaped base 1;

a liquid receiving bottle 13 is arranged in the storage seat 14, an injector 3 is arranged above the liquid receiving bottle 13, two outer side walls at the bottom of the injector 3 are both provided with a placing frame 15, and the inner side of the placing frame 15 is provided with a positioning ring 17;

when in use, the positioning ring 17 is positioned on the inner side of the mounting frame 15 to rotate, so that the fit groove 24 rotates to the position of the mounting frame 15;

the outer walls of the two sides of the positioning ring 17 are provided with fitting grooves 24, and the fitting grooves 24 are symmetrical about the center line of the positioning ring 17;

when in use, the positioning ring 17 can be detached to the outside of the placing frame 15 through the fitting groove 24 by pulling the filtering backing plate 19 downwards;

a connecting ring 18 is arranged on the outer wall of the filter backing plate 19, and one end of the connecting ring 18 far away from the filter backing plate 19 is fixedly connected with one end of the positioning ring 17;

when in use, the connecting ring 18 is arranged between the filter backing plate 19 and the positioning ring 17, so that the filter backing plate 19 is detached through the positioning ring 17;

a bearing frame 2 is arranged on the outer wall of one side of the injector 3, and one end of the bearing frame 2 far away from the injector 3 is fixedly connected with the inner wall of the L-shaped base 1;

a liquid outlet 16 is arranged at the central position of the bottom of the injector 3, a filter pad 19 is arranged at the bottom of the injector 3 outside the liquid outlet 16, and a filter membrane 20 is arranged in the filter pad 19 below the liquid outlet 16;

a liquid storage tank 11 is arranged above the injector 3, a liquid injection port 10 is arranged on the outer wall of one side of the liquid storage tank 11, a lower grinding port 12 is arranged at the bottom end of the liquid storage tank 11, and the bottom end of the lower grinding port 12 is communicated with the top of the injector 3;

a lower end clamp 4 is arranged at the contact position of the lower grinding opening 12 and the injector 3, an upper grinding opening 9 is arranged at the top end of the liquid storage tank 11, an I-shaped frame 5 is arranged at the top end of the L-shaped base 1, a pressure pump 6 is arranged at the central position of the top end of the I-shaped frame 5, a pressure pipeline 7 is arranged at one end of the pressure pump 6, and one end, far away from the pressure pump 6, of the pressure pipeline 7 is communicated with the top of the upper grinding opening 9;

an upper end clamp 8 is arranged at the contact position of the pressurizing pipeline 7 and the upper grinding opening 9.

When the sample injection device is used, firstly, the injection port 10 is opened to inject a sample to be filtered into the liquid storage tank 11, then, the injection port 10 is closed, so that the liquid storage tank 11 is in a sealing structure, at the moment, the pressure pump 6 is opened to pressurize the interior of the liquid storage tank 11 through the pressure pipeline 7 and the upper grinding port 9, so that the sample in the liquid storage tank 11 flows into the injector 3 through the lower grinding port 12 and then falls into the top of the filter membrane 20 through the liquid outlet nozzle 16, at the moment, the filter membrane 20 filters the sample, then the filtered sample falls into the liquid receiving bottle 13 to achieve the purpose of filtering the sample, then, the upper end clamp 8 is arranged at the connecting position between the upper grinding port 9 and the pressure pipeline 7, so that the contact position between the pressure pipeline 7 and the upper grinding port 9 is fastened through the upper end clamp 8, and then, the lower end clamp 4 is arranged at the connecting position between the lower grinding port 12 and the injector 3, so as to fasten the contact position of the lower grinding opening 12 and the injector 3 through the lower clamp 4, thereby avoiding the loosening phenomenon between the upper grinding opening 9 and the lower grinding opening 12 and the pressurizing pipeline 7 and the injector 3, then rotating the filter pad 19 to drive the positioning ring 17 to rotate at the inner side of the mounting frame 15 through the connecting ring 18, when the fitting groove 24 rotates to the position of the mounting frame 15, pulling the filter pad 19 downwards to detach the positioning ring 17 to the outer part of the mounting frame 15, so as to detach the filter pad 19, thereby facilitating the cleaning and maintenance treatment of the filter pad, finally, the rubber gasket 23 is stably arranged at the bottom end of the L-shaped base 1 through the convex fastening block 22 in the convex fastening groove 21, when the filter is placed on a table surface, the rubber gasket 23 contacts with the top of the table surface, so as to improve the friction force between the filter and the table surface, thereby reducing the displacement of the filter and completing the use of the filter.

Claims

1. The positive pressure sample filter is characterized by comprising an L-shaped base (1), wherein an object placing seat (14) is arranged on one side of the bottom of the L-shaped base (1), a liquid receiving bottle (13) is placed inside the object placing seat (14), an injector (3) is arranged above the liquid receiving bottle (13), a bearing frame (2) is arranged on the outer wall of one side of the injector (3), a liquid outlet nozzle (16) is arranged at the central position of the bottom of the injector (3), a filtering base plate (19) is installed at the bottom of the injector (3) outside the liquid outlet nozzle (16), a filter membrane (20) is arranged inside the filtering base plate (19) below the liquid outlet nozzle (16), a liquid storage tank (11) is arranged above the injector (3), a liquid injection port (10) is arranged on the outer wall of one side of the liquid storage tank (11), and a lower grinding port (12) is arranged at the bottom end of the liquid storage tank (11), lower extreme clip (4) are installed to the contact position department of lower mill mouth (12) and syringe (3), the top that holds liquid jar (11) is equipped with mill mouth (9), the top of L type base (1) is equipped with worker's type frame (5), the central point department on worker's type frame (5) top installs force (forcing) pump (6), pipeline (7) are installed in the one end of force (forcing) pump (6), upper end clip (8) are installed to the contact position department of pipeline (7) and last mill mouth (9) of pressurizing.

2. The positive pressure sample filter of claim 1, wherein: rubber gasket (23) are installed to the bottom of L type base (1), L type base (1) bottom of rubber gasket (23) position department is equipped with two sets of protruding type fastening groove (21).

3. The positive pressure sample filter of claim 1, wherein: all be equipped with on the two lateral walls of syringe (3) bottom and settle frame (15), the locating ring (17) is installed to the inboard of settling frame (15).

4. A positive pressure sample filter according to claim 3, wherein: the outer walls of the two sides of the positioning ring (17) are provided with fit grooves (24), and the fit grooves (24) are symmetrical about the center line of the positioning ring (17).

5. A positive pressure sample filter according to claim 3, wherein: the outer wall of the filtering backing plate (19) is provided with a connecting ring (18), and one end, far away from the filtering backing plate (19), of the connecting ring (18) is fixedly connected with one end of the positioning ring (17).

6. The positive pressure sample filter of claim 2, wherein: the center position department of protruding type fastening groove (21) inside is equipped with protruding type fastening block (22), the bottom of protruding type fastening block (22) extend to the outside of protruding type fastening groove (21) and with the top fixed connection of rubber gasket (23).