CN219376266U - Semi-automatic suction filtration device - Google Patents

Abstract

The utility model belongs to the technical field of experimental equipment, and relates to a semi-automatic suction filtration device, which comprises a shell, wherein a first layer of bottom plate, a second layer of bottom plate, a third layer of bottom plate and a top plate are sequentially arranged in the shell from bottom to top; a test tube rack is arranged on the first layer of bottom plate, a plurality of reaction tubes are arranged in the test tube rack, and a plurality of injector filter heads are arranged on the second layer of bottom plate; a plurality of injector barrels are arranged on the third layer of bottom plate, a plurality of driving sources are arranged on the top plate, and the output shafts of the driving sources are connected with a double-layer screw stirring paddle; the reaction tube is connected with a vacuumizing device, and the vacuumizing device comprises a vacuum pump, a suction filter tube and a glass guide tube; the glass conduit comprises a main pipeline and a plurality of branch pipelines; the vacuum pump is connected with the main pipeline through the suction filtration pipe, and the branch pipeline is connected with the reaction pipe through the suction filtration pipe. The air pressure in the test tube for collecting the filtered solution is reduced by a vacuum pump, so that the air pressure in the bottle is far smaller than the air pressure in the container for containing the solution to be filtered, and the purpose of filtration is achieved through the air pressure difference.

Description

Semi-automatic suction filtration device

Technical Field

The utility model belongs to the technical field of experimental equipment, and relates to a semi-automatic suction filtration device.

Background

In some assay experiments, some suspension samples need to be filtered to remove suspended materials or impurities from the solution, such as soil carbon powder mixed solutions. The existing filtering mode is to utilize a syringe and a syringe filter head to filter suspension samples, firstly, the syringe is used to suck the suspension samples to be filtered into a syringe empty cylinder, then the syringe filter head is arranged on a syringe needle, finally, the syringe piston handle is manually pressed one by one, the suspension samples to be filtered are pressed through the filter head filter membrane to carry out the filtering process, so that suspended matters or impurities in the solution are removed, the purpose of filtration is achieved, but the filtering mode needs to take a large amount of labor and time for filtering the sample solution, the syringe is required to be manually pressed one by one to complete the filtering process, in addition, as the aperture of the filter membrane in the syringe filter head is small, the particle size of suspended matters or impurities in the sample solution is relatively large, along with the continuous filtering, the suspended matters or impurities in the sample solution gradually sink down on the filter membrane of the filter head due to gravity, the filter head is extremely easy to be blocked, the manual pressing is also gradually increased, and therefore, a novel filtering device is needed to be designed, the cost of labor and time is reduced, the cost of the filtering process is effectively avoided, the suspended matters or impurities in the sample solution are blocked, and the filtering efficiency of the sample solution is improved.

Disclosure of Invention

The utility model aims to provide a semi-automatic suction filtration device, which solves the problems that a filtration head is easy to block and manual pressing is time-consuming and labor-consuming in the prior art.

The utility model is realized by the following technical scheme:

a semi-automatic suction filtration device comprises a shell, wherein a first layer of bottom plate, a second layer of bottom plate, a third layer of bottom plate and a top plate are sequentially arranged in the shell from bottom to top;

a test tube rack is arranged on the first layer of bottom plate, and a plurality of reaction tubes for collecting filtered solution are arranged in the test tube rack;

a plurality of injector filter heads are arranged on the second layer of bottom plate;

a plurality of injector barrels are arranged on the third layer of bottom plate, and the bottoms of the injector barrels are connected with an injector filter head;

a plurality of driving sources are arranged on the top plate, an output shaft of each driving source is connected with a rotating rod, a double-layer screw stirring paddle is arranged on each rotating rod, and each rotating rod extends into the corresponding syringe barrel;

the reaction tube is connected with a vacuumizing device, and the vacuumizing device comprises a vacuum pump, a suction filter tube and a glass guide tube;

the glass conduit comprises a main pipeline and a plurality of branch pipelines connected with the main pipeline;

the vacuum pump is connected with the main pipeline through the suction filtration pipe, and the branch pipeline is connected with the reaction pipe through the suction filtration pipe.

Further, a connecting pipe which is arranged obliquely upwards is connected to one side of the reaction pipe, and the connecting pipe is connected with the glass guide pipe through a suction filtration pipe.

Further, a valve is arranged on the connecting pipe.

Further, a valve is provided on each branch pipe.

Further, the driving source adopts a micro motor.

Further, the reaction tube adopts a branch grinding mouth reaction tube.

Further, a plurality of limiting holes for installing the syringe barrels are prefabricated on the third-layer bottom plate.

Further, a plurality of limiting holes for installing the injector filter head are prefabricated on the second-layer bottom plate.

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

the utility model discloses a semiautomatic suction filtration device, wherein a driving source connected with a double-layer screw stirring paddle is arranged at the top of the device, and the double-layer screw stirring paddle can uniformly mix suspension to be filtered, so that the blockage of a filter head of an injector caused by the sinking of suspended substances in solution is effectively prevented, and the filtration efficiency is improved; one side of the reaction tube is connected with a vacuumizing device, the vacuumizing device comprises a vacuum pump, a filtering tube and a glass guide tube, the vacuum pump is in sealing connection with the reaction tube through the filtering tube and the glass guide tube, the vacuum pump is controlled to operate to pump the reaction tube into a negative pressure state, the air pressure in a syringe barrel filled with the solution to be filtered is atmospheric pressure at the moment, the air pressure in the reaction tube for collecting the filtered solution is far smaller than the air pressure in the syringe barrel, the solution to be filtered in the syringe barrel is sucked into the reaction tube for collecting the filtered solution, and the solution is filtered by a filter head of the syringe in the process, so that the purpose of filtering the solution is achieved.

Further, the branch pipe on the reaction pipe is inclined upwards, so that the filtered solution can be effectively prevented from entering the vacuum pump through the connecting pipe.

Drawings

Fig. 1 is a schematic structural view of a semiautomatic suction filtration device of the present utility model.

In the figure, 1, a miniature motor; 2. a housing; 3. double-deck screw stirring rake; 4. a syringe barrel; 5. a syringe filter; 6. a first vacuum rubber suction filtration tube; 7. a reaction tube; 8. a test tube rack; 9. a glass conduit; 10. a second vacuum rubber suction filtration tube; 11. and a vacuum pump.

Detailed Description

The objects, technical solutions and advantages of the present utility model will be more apparent from the following detailed description with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model.

The components illustrated in the figures and described and shown in the embodiments of the utility model may be arranged and designed in a wide variety of different configurations, and thus the detailed description of the embodiments of the utility model provided in the figures below is not intended to limit the scope of the utility model as claimed, but is merely representative of selected ones of the embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model, based on the figures and embodiments of the present utility model.

It should be noted that: the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, element, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, element, method, article, or apparatus.

The features and properties of the present utility model are described in further detail below with reference to examples.

The utility model discloses a semiautomatic suction filtration device, which comprises a shell 2, wherein the shell 2 is divided into four layers from bottom to top, and particularly comprises a first layer of bottom plate, a second layer of bottom plate, a third layer of bottom plate and a top plate, wherein a test tube rack 8 is arranged on the first layer of bottom plate, the test tube rack 8 is used for placing a reaction tube 7 for collecting filtered solution, a limiting hole for installing a syringe filter head 5 is arranged on the second layer of bottom plate, a limiting hole for installing a syringe barrel 4 is arranged on the third layer of bottom plate, a plurality of micro motors 1 are arranged on the top plate of the device, the micro motors 1 are correspondingly arranged with the syringe barrel 4, a rotating rod is connected with an output shaft of the micro motor 1, and a double-layer screw stirring paddle 3 is arranged on the rotating rod and is arranged in the syringe barrel 4 during operation and used for stirring the solution to be filtered.

The reaction tube is connected with a vacuumizing device, and the vacuumizing device comprises a vacuum pump 11, a suction filter tube and a glass guide tube 9; the glass conduit 9 comprises a main pipeline and a plurality of branch pipelines connected with the main pipeline, the vacuum pump 11 is connected with the main pipeline through a suction filtration pipe, and the branch pipelines are connected with the reaction pipe 7 through the suction filtration pipe.

The branch pipe orifice of the reaction pipe 7 is connected with each branch pipe orifice of the glass conduit 9 in a sealing way through the first vacuum rubber suction pipe 6, and the main pipe orifice of the glass conduit 9 is connected with the suction port of the vacuum pump 11 in a sealing way through the second vacuum rubber suction pipe 10.

More preferably, a connecting pipe arranged obliquely upwards is connected to one side of the reaction tube 7, and the connecting pipe is connected with the glass guide tube 9 through a suction filtration tube.

The connecting pipes are provided with valves, the branch pipes are provided with valves, and operators can open the corresponding valves according to the use requirements.

The utility model discloses a semi-automatic suction filtration device, which has the following working principle:

when the device is used, firstly, a reaction tube 7 for collecting filtered solution is placed on a test tube rack 8, a syringe filter 5 is fixed in a second layer of bottom plate, a syringe barrel 4 is installed in a third layer of bottom plate, solution to be filtered is filled in, the syringe filter 5 is inserted into a rubber plug at the mouth of the reaction tube 7, and a double-layer screw propeller 3 arranged on a rotating rod is placed in the syringe barrel 4; the micro motor 1 is arranged on the top layer of the shell 2, the branch pipe orifice of the reaction pipe 7 is connected with the first vacuum rubber suction pipe 6, the other end of the first vacuum rubber suction pipe 6 is connected with each branch pipe orifice of the glass guide pipe 9, the main pipe orifice of the glass guide pipe 9 is connected with the second vacuum rubber suction pipe 10, the other end of the second vacuum rubber suction pipe 10 is connected with the air suction port of the vacuum pump 11, and finally suction filtration can be started after checking that each connecting port is in a sealed state.

When in suction filtration, the micro motor 1 is electrified, so that the micro motor works and runs to drive the double-layer screw stirring paddles 3 arranged in the syringe barrel 4 to rotate, so that the solution to be filtered in the syringe barrel 4 is uniformly mixed, suspended matters in the solution to be filtered are prevented from sinking into the syringe filter head 5 at the bottom of the syringe barrel 4 due to gravity during filtration, and the syringe filter head 5 is prevented from being blocked. Then, a working switch of the vacuum pump 11 is turned on to enable the vacuum pump 11 to work, the vacuum pump 11 pumps air in the reaction tube 7 through the vacuum rubber suction filtration tube 10, the glass guide tube 9 and the vacuum rubber suction filtration tube 6, so that the air pressure of the reaction tube 7 is reduced, the solution to be filtered in the injector cylinder 4 is sucked into the reaction tube 7, and suspended matters in the solution are filtered out through the injector filter head 5 in the process that the solution to be filtered enters the reaction tube 7, and finally, the purpose of filtering the solution is achieved. Compared with the prior art, the device filters the suspension more efficiently, and can carry out suction filtration on multiple groups of solutions simultaneously, thereby achieving the effect of time and labor saving.

The semi-automatic suction filtration device disclosed by the utility model utilizes the micro motor 1 and the double-layer screw stirring paddles 3 to uniformly mix the solution to be filtered, prevents suspended matters in the solution to be filtered from blocking the filter head 5 of the injector in the suction filtration process, and utilizes the vacuum pump 11 to reduce the air pressure in a test tube for collecting the filtered solution, so that the air pressure in a bottle is far less than the air pressure in a container filled with the solution to be filtered, and the purpose of filtration is achieved through the air pressure difference; under the action of the vacuum pump 11 and the micro motor 1, the whole filtering process can continue the next filtering by only placing the syringe barrel 4 filled with the solution to be filtered and the reaction tube 7 for collecting the filtered solution at a specified position before and after the device works and taking down the syringe barrel 4 for completing the filtering and the reaction tube 7 for collecting the filtered solution and repeating the steps, so that the filtering process is more efficient, convenient and quick, and labor is saved.

The mode that utilizes hydraulic pressure mechanism or other actuating mechanism to press the filtration is difficult to nimble control actuating mechanism to the dynamics of pressing of syringe piston handle, after suspended solid piles up in the filter membrane gradually, needs slower pressing, and actuating mechanism presses the dynamics too big and damages syringe piston handle easily to influence filtration efficiency. The utility model adopts a vacuumizing mode, achieves the purpose of filtering through the air pressure difference, and can avoid the problem of damage to the injector caused by overlarge pressure.

Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the utility model without departing from the spirit and scope of the utility model, which is intended to be covered by the claims.

Claims (8)

1. The semi-automatic suction filtration device is characterized by comprising a shell (2), wherein a first layer of bottom plate, a second layer of bottom plate, a third layer of bottom plate and a top plate are sequentially arranged in the shell (2) from bottom to top;

a test tube rack (8) is arranged on the first layer of bottom plate, and a plurality of reaction tubes (7) for collecting filtered solution are arranged in the test tube rack (8);

a plurality of injector filter heads (5) are arranged on the second layer of bottom plate;

a plurality of injector barrels (4) are arranged on the third layer of bottom plate, and the bottom of each injector barrel (4) is connected with an injector filter head (5);

a plurality of driving sources are arranged on the top plate, an output shaft of each driving source is connected with a rotating rod, a double-layer propeller (3) is arranged on each rotating rod, and each rotating rod extends into the corresponding syringe barrel (4);

the reaction tube (7) is connected with a vacuumizing device, and the vacuumizing device comprises a vacuum pump (11), a suction filtering tube and a glass guide tube (9); the glass conduit (9) comprises a main pipeline and a plurality of branch pipelines connected with the main pipeline; the vacuum pump (11) is connected with the main pipeline through a suction filtration pipe, and the branch pipeline is connected with the reaction pipe (7) through the suction filtration pipe.

2. A semiautomatic suction filtration device according to claim 1, characterized in that a connection pipe arranged obliquely upwards is connected to one side of the reaction pipe (7), which connection pipe is connected with the glass conduit (9) via the suction filtration pipe.

3. A semiautomatic suction filtration device as claimed in claim 2, characterized in that the connecting pipe is provided with a valve.

4. A semiautomatic suction filtration device as claimed in claim 1, characterized in that a valve is provided on each branch.

5. A semiautomatic suction filtration device according to claim 1, characterized in that the drive source is a micro motor (1).

6. A semiautomatic suction filtration device according to claim 1, characterized in that the reaction tube (7) is a branched-off grinding reaction tube (7).

7. A semiautomatic suction filtration device according to claim 1, characterized in that a number of limiting holes for mounting the syringe cartridge (4) are prefabricated in the third layer of bottom plate.

8. A semiautomatic suction filtration device according to claim 1, characterized in that the second floor is pre-formed with a plurality of limiting holes for mounting the injector filter head (5).