CN215876512U

CN215876512U - Liquid filtering device

Info

Publication number: CN215876512U
Application number: CN202122338176.6U
Authority: CN
Inventors: 许梦洁; 李双阳; 魏熠挺; 刘艳华
Original assignee: Hangzhou Simbos Pharm Co ltd
Current assignee: Hangzhou Simbos Pharm Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-02-22
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a liquid filtering device, which comprises a pushing mechanism and a filtering chamber, wherein the pushing mechanism comprises a driving device and a push plate movably connected with the driving device; the sample rack is arranged in the box body and movably connected with the side plate of the box body, the sample rack is sequentially provided with a first cover plate, a second cover plate and a third cover plate from top to bottom, a plurality of through holes are oppositely formed in the cover plates, a syringe needle cylinder is arranged in the through hole of the first cover plate, a needle head filter is arranged in the through hole of the second cover plate, and a sample receiver is arranged in the through hole of the third cover plate. When the driving device is started, the driving device drives the push plate to move downwards, and then the injector with the filtered sample on the sample rack is extruded, so that automatic filtration is realized, convenience and rapidness are realized, and the filtration efficiency is greatly improved.

Description

Liquid filtering device

Technical Field

The utility model relates to the field of pharmaceutical equipment, in particular to a liquid medicine filtering device.

Background

In the development and production processes of liquid preparations, the samples are often required to be filtered, and the purpose of the treatment comprises particle removal before analysis of the samples, clarification, sterilization, filtration and the like at the end of the preparation. The needle filter filtration is the simplest and rapid small-volume solution filtration method, a laboratory usually adopts a needle filter manual pressure filtration mode to carry out treatment before sample analysis, the mode has low filtration efficiency and large workload, the hand strain of experimenters is easy to cause, the sample treatment time is long, and the product stability is influenced; the clarification, sterilization and filtration of the preparation are usually carried out by adopting a positive pressure filter, the positive pressure filtration needs other pressurizing equipment, the operation is complex, the preparation cannot be used on a clean bench, and only one sample can be processed at a time. And for filtering the liquid sample with larger viscosity, the filtering device is difficult to clean, cross contamination is easy to occur, and the use convenience is poorer.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the liquid filtering device which has high filtering efficiency, can simultaneously process a plurality of samples and has no cleaning problem.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a liquid filtering device comprises a pushing mechanism and a filtering chamber, wherein the pushing mechanism comprises a driving device and a push plate movably connected with the driving device; the filter chamber comprises a box body and a sample rack, wherein the box body is of a side-opening type cavity structure and consists of a top plate, a side plate, a back plate and a bottom plate; the driving device penetrates through and is fixed on the top plate of the box body; the sample rack is arranged at one end of the box body far away from the box top plate and is movably connected with the box body side plate; the sample frame is equipped with first apron, second apron and the third apron parallel with the box roof from the top down in proper order, and the homogeneous phase has set up the several through-hole relatively on the apron, places the syringe cylinder in the first apron through-hole, and the syringe needle filter is placed to the second apron through-hole, places the sample receiver in the third apron through-hole.

The driving device is an electric cylinder, and a push rod in the electric cylinder penetrates through the top plate and is movably connected with the push plate through a connecting block.

The push plate is movably connected with the side plate of the box body through the slide rail slide block and can move up and down in the box body relative to the side plate. The push plate is additionally provided with a pressure sensor, so that the filtering pressure can be monitored in real time.

The sample rack is movably connected with the side plate of the box body through the slide rail and can move along the extension direction of the slide rail, so that the box body is pulled out. The distance between the second cover plate and the third cover plate in the sample holder can be adjusted relative to the first cover plate through four hexagon socket head cap screws on the second cover plate and the third cover plate.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the driving device is arranged, so that the automatic filtration of the sample can be realized; through the setting of through-hole, can once filter many batches of samples simultaneously, have quick, high-efficient, convenient advantage to the filtration of viscosity big, difficult washing sample.

The technical scheme of the utility model is further explained by combining the attached drawings.

Drawings

Fig. 1 is a front view of the utility model;

fig. 2 is an exploded schematic view of the utility model;

reference numerals: 1-drive means, 2-push plate, 3-top plate, 4-side plate, 5-back plate, 6-bottom plate, 7-first cover plate, 8-second cover plate, 9-third cover plate, 10-syringe needle cylinder, 11-needle filter, 12-sample receiver, 13-push rod, 14-connecting block, 15-slide rail slide block, 16-slide rail.

Detailed Description

Example 1

As shown in fig. 1-2, a liquid filtering apparatus comprises a pushing mechanism and a filtering chamber, wherein the pushing mechanism comprises a driving device and a push plate movably connected with the driving device; the driving device is an electric cylinder, the electric cylinder is fixed on the top plate, and a push rod in the electric cylinder penetrates through the top plate and is movably connected with the push plate through a connecting block. The push plate is movably connected with the side plate of the box body through the slide rail slide block and can move up and down in the box body relative to the side plate. The push plate is additionally provided with a pressure sensor, so that the filtering pressure can be monitored in real time.

The filter chamber comprises a box body and a sample rack, wherein the box body is of a side-opening type cavity structure and consists of a top plate, a side plate, a back plate and a bottom plate; the sample rack is arranged at one end of the box body far away from the box top plate and is movably connected with the box body side plate; the sample frame is equipped with first apron, second apron and the third apron parallel with the box roof from the top down in proper order, and the homogeneous phase has set up the several through-hole relatively on the apron, places the syringe cylinder in the first apron through-hole, and the syringe needle filter is placed to the second apron through-hole, places the sample receiver in the third apron through-hole. The sample rack is movably connected with the outer box side plate through the slide rail and can move along the extension direction of the slide rail, so that the box body is pulled out. The distance between the second cover plate and the third cover plate in the sample holder can be adjusted relative to the first cover plate through four hexagon socket head cap screws on the second cover plate and the third cover plate.

During operation, pull out the sample frame, will treat that filterable liquid sample inhales in disposable syringe blank tube, place the syringe needle filter on the through-hole of second apron, place the disposable syringe that is equipped with liquid sample in the through-hole of the first apron that corresponds, contact with the syringe needle filter, the sample receiver is arranged in on the through-hole that corresponds the third apron, finishes preparing, pushes away the sample frame into the filter chamber, starts the electric jar, drive catch bar downstream to promote the downward uniform motion of push pedal, extrusion syringe piston shaft, accomplish automatic filtration. And closing the electric cylinder, driving the push plate to move upwards by the push rod to return to the initial position, pulling out the sample rack, taking out the sample receiver, collecting the filtered sample, and discarding the disposable syringe and the needle filter.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A liquid filtering device is characterized by comprising a pushing mechanism and a filtering chamber, wherein the pushing mechanism comprises a driving device (1) and a push plate (2) movably connected with the driving device; the filter chamber comprises a box body and a sample frame which are of a side surface open type cavity structure and composed of a top plate (3), a side plate (4), a back plate (5) and a bottom plate (6); the driving device (1) penetrates through and is fixed on a top plate (3) of the box body; the sample rack is arranged at one end of the box body far away from the box top plate (3) and is movably connected with the box body side plate (4); the sample frame is equipped with first apron (7), second apron (8) and third apron (9) parallel with the box roof from the top down in proper order, and the homogeneous phase has relatively set up the several through-hole on the apron, places syringe cylinder (10) in the first apron through-hole, and syringe needle filter (11) are placed to the second apron through-hole, place sample receiver (12) in the third apron through-hole.

2. A liquid filtering device as claimed in claim 1, wherein the driving means is an electric cylinder, and a push rod (13) in the electric cylinder penetrates through the top plate and is movably connected with the push plate (2) through a connecting block (14).

3. A liquid filtering device as claimed in claim 1, wherein the push plate is movably connected to the side plate of the box body by a slide rail slider (15) and can move up and down in the box body relative to the side plate.

4. The liquid filtering device as claimed in claim 1, wherein the push plate is provided with a pressure sensor for real-time monitoring of the filtering pressure.

5. A liquid filtering device according to claim 1, wherein the sample holder is movably connected to the side panel of the housing by a slide rail (16) and is movable in the direction of extension of the slide rail to pull the housing out.

6. The liquid filtering device of claim 1, wherein the distance between the second cover plate and the third cover plate in the sample holder relative to the first cover plate is adjustable.