A rapid filtering device for chemical laboratories

Abstract

A rapid filtering device for a chemical laboratory comprises a filter box and a cover plate installed at the top opening of the filter box; a plurality of mounting holes are formed on the cover plate, and filters for filtering or rubber plugs for sealing the mounting holes are installed in the mounting holes; a storage plate detachably connected to the filter box is installed in the filter box, and collecting containers corresponding to the positions of the plurality of filters are installed on the storage plate; an exhaust assembly for exhausting air inside the filter box is connected to the bottom of the filter box; compared with the prior art, the coordinated arrangement of multiple groups of filters and collecting containers can realize the synchronous filtering operation of multiple groups of filters under the action of the exhaust assembly, so as to meet the filtering requirements of different chemicals, and after removing the storage plate, the filter can be cleaned under the action of negative pressure by continuously and repeatedly injecting blank reagents or cleaning solvents into the filters, and subsequently, it is only necessary to dump the waste solvent in the filter box, so that the overall cleaning is convenient and quick.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a rapid filtering device used in a chemical laboratory. Background Art

[0002] In traditional chemical and pharmaceutical industries, chemical analysis is a necessary means for product development and mass production quality control. Filtration is an indispensable step in the chemical analysis process. When a chemical testing laboratory conducts a large number of sample tests every day, the filtration step often consumes a lot of valuable time of the inspectors, and after a sample is filtered, the vessel needs to be circulated and cleaned to meet the filtering needs of the next chemical.

[0003] The existing method of filtering chemicals usually uses a syringe with a filter head and a ceramic funnel for filtration. In the syringe with a filter head, the piston rod needs to be pushed manually and can only be performed individually; and the ceramic funnel filtration on the market can only perform filtration operations on a single funnel. When multiple groups of chemicals need to be filtered, the above two methods are time-consuming and labor-intensive.

[0004] Chinese patent number CN214050633U discloses a series filtration device, including a mounting platform, a vacuum pump, a filtration bottle and a funnel, wherein: a vacuum pump is fixedly installed on the mounting platform, a bracket is fixedly installed on the mounting platform, a slide groove is embedded in the side of the bracket, a height adjustment plate is slidably connected to the side wall of the slide groove, a plurality of filtration bottles are evenly arranged on the height adjustment plate, a fixed plate is provided on the bracket, a plurality of funnels corresponding to the filtration bottles are fixedly installed on the fixed plate, the other end of the second connecting pipe passes through the bracket and is connected to a plurality of connecting branches, the sides of the connecting branches are respectively connected to corresponding lateral branches, and the lateral branches are respectively connected to the side walls of the top ends of the corresponding filtration bottles.

[0005] The filtration device disclosed above realizes filtration operation on each filtration bottle by connecting multiple filtration bottles arranged in parallel, and evacuating the connecting pipes to achieve synchronous evacuation of several connecting straight pipes connected to the connecting pipes, but since multiple connecting straight pipes are connected to the same connecting pipe, only chemicals of the same product can be filtered. At the same time, after the filtration is completed, each filtration bottle needs to be cleaned in turn, which is time-consuming and labor-intensive. Utility Model Content

[0006] The utility model aims to overcome the defects in the prior art and provides a fast filtering device for chemical laboratories which has high filtering efficiency and is easy to clean.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a rapid filtering device for a chemical laboratory, comprising a filter box and a cover plate installed at the top opening of the filter box; a plurality of mounting holes are formed on the cover plate, and filters for filtering or rubber plugs for sealing the mounting holes are installed in the mounting holes; a storage plate detachably connected to the filter box is installed in the filter box, and collection containers corresponding to the positions of the plurality of filters are installed on the storage plate; an exhaust component for exhausting air inside the filter box is connected to the bottom of the filter box.

[0008] As a preferred solution of the utility model, the cover plate is sealingly arranged at the top opening of the filter box, and a sealing ring for sealing the filter box is provided on the outer ring of the cover plate.

[0009] As a preferred solution of the utility model, locking ears are formed at both ends of the cover plate, and lock buckles for pressing the locking ears are rotatably hinged at both ends of the filter box.

[0010] As a preferred solution of the utility model, the filter box is provided with a support plate for supporting the storage plate and a clamping plate for clamping the storage plate, and the support plate is located below the clamping plate.

[0011] As a preferred solution of the utility model, a clamping groove for clamping with the clamping plate is formed on the side of the storage plate, and the size of the support plate is larger than that of the clamping plate.

[0012] As a preferred solution of the utility model, the storage plate is formed with storage holes corresponding to the plurality of mounting holes, and the collecting containers are inserted into the corresponding storage holes.

[0013] As a preferred solution of the utility model, the filter is an injection tube or a ceramic funnel, the end of the injection tube is connected to a filter head, and filter paper is placed in the ceramic funnel.

[0014] As a preferred solution of the utility model, a rubber ring for sealing the injection tube or the ceramic funnel is provided at the mounting hole.

[0015] As a preferred solution of the utility model, the air extraction component includes an air extraction pump and an air extraction hose connected to each other, and the air extraction hose is connected to the bottom of the filter box.

[0016] As a preferred solution of the utility model, an air suction hole connected to an air suction hose is formed at the bottom of the filter box, and the air suction hole is located below the storage plate.

[0017] Compared with the prior art, the beneficial effect of the utility model is that by coordinating the arrangement of multiple groups of filters and collecting containers, the synchronous filtering operation of multiple groups of filters can be realized under the action of the vacuum assembly to meet the filtering requirements of different chemicals. At the same time, after disassembling the storage plate, the filter can be cleaned under the action of negative pressure by repeatedly injecting blank reagents or cleaning solvents into the filter to achieve the purpose of recycling. Subsequently, it is only necessary to dump the waste solvent in the filter box, and the overall cleaning is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the filter box;

[0020] Figure 3 is a schematic diagram of a cover plate with a ceramic funnel installed;

[0021] Figure 4 is a schematic diagram of a cover plate with an injection tube installed;

[0022] Figure 5 It is a schematic diagram of the filtration of a ceramic funnel;

[0023] Figure 6 It is a schematic diagram of the filtration of the injection tube;

[0024] Figure 7 is a top view of the filter box;

[0025] Figure 8 yes Figure 7 Sectional view of the AA plane;

[0026] Fig. 9 It is a schematic diagram of the structure of the storage plate;

[0027] Figure numerals: filter box 1, support plate 11, snap-on plate 12, lock 13, exhaust hole 14, cover plate 2, mounting hole 21, rubber plug 22, lock ear 23, rubber ring 24, sealing ring 25, filter 3, ceramic funnel 31, injection tube 32, filter paper 33, filter head 34, storage plate 4, storage hole 41, snap-on groove 42, collecting container 5, exhaust assembly 6, exhaust pump 61, exhaust hose 62. DETAILED DESCRIPTION

[0028] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-Figure 9As shown, a rapid filtering device for a chemical laboratory comprises a filter box 1 and a cover plate 2 installed at the top opening of the filter box 1; a plurality of mounting holes 21 are formed on the cover plate 2, and a plurality of filters 3 for filtering or rubber plugs 22 for blocking the mounting holes 21 are installed in the mounting holes 21; a storage plate 4 detachably connected to the filter box 1 is installed in the filter box 1, and a collecting container 5 corresponding to the position of the plurality of filters 3 is installed on the storage plate 4; an exhaust component 6 for exhausting air inside the filter box 1 is connected to the bottom of the filter box 1.

[0030] The number of mounting holes 21 is set according to actual needs, and corresponding filters 3 are set on the cover plate 2 and the storage plate 4 according to the number of chemical groups to be filtered. The redundant mounting holes 21 are blocked by rubber plugs 22, and the inside of the filter box 1 on which the cover plate 2 is installed is evacuated under the action of the exhaust component 6. At this time, negative pressure is formed inside the filter box 1. Combined with the action of the external atmospheric pressure, the chemicals on the filter 3 are pressed into the filter box 1, and the chemicals are filtered after passing through the filter 3.

[0031] The cover plate 2 is sealingly arranged at the top opening of the filter box 1, and a sealing ring 25 for sealing the filter box 1 is provided on the outer ring of the cover plate 2. Lock ears 23 are formed at both ends of the cover plate 2. Lock buckles 13 for pressing the lock ears 23 are rotatably hinged at both ends of the filter box 1.

[0032] Under the action of the locking ear 23 and the lock buckle 13, the cover plate 2 can be detachably connected to the opening of the filter box 1. At the same time, under the action of the sealing ring 25, the sealing of the cover plate 2 to the filter box 1 is ensured. The lock buckle 13 presses the locking ear 23 to ensure the stable sealing of the cover plate 2 to the opening of the filter box 1.

[0033] The filter box 1 is provided with a support plate 11 for supporting the placement plate 4 and a snap-in plate 12 for snap-connecting the placement plate 4. The support plate 11 is located below the snap-in plate 12. The support plate 11 is used to abut against the bottom of the placement plate 4, so as to support the height of the placement plate 4, thereby supporting the collecting container 5, and realizing the overhead setting of the collecting container 5 in the filter box 1, and the snap-in plate 12 is used to position the horizontal position of the placement plate 4, ensuring the stable setting of the placement plate 4 in the filter box 1.

[0034] When the storage plate 4 is snapped with the snap-in plate 12 , a gap is formed between the edge of the storage plate 4 and the inner wall of the filter box 1 , ensuring that the air inside the filter box 1 circulates during the air extraction process of the air extraction component 6 , meeting the air extraction requirements.

[0035] A snap-in groove 42 snapped with the snap-in plate 12 is formed on the side of the storage plate 4. The size of the support plate 11 is larger than that of the snap-in plate 12, thereby ensuring that when the snap-in plate 12 is snapped with the snap-in groove 42, the surface of the support plate 11 abuts against the storage plate 4 to support the storage plate 4.

[0036] The storage plate 4 is formed with storage holes 41 corresponding to the plurality of mounting holes 21 , and the collecting container 5 is inserted into the corresponding storage holes 41 . Under the one-to-one correspondence between the storage holes 41 and the mounting holes 21 , the setting positions of the collecting container 5 and the filter 3 are one-to-one corresponding.

[0037] The filter 3 is an injection tube 32 or a ceramic funnel 31 . The end of the injection tube 32 is connected with a filter head 34 . A filter paper 33 is placed in the ceramic funnel 31 . The specific structure of the filter 3 can be selected according to actual needs.

[0038] A rubber ring 24 for sealing the injection tube 32 or the ceramic funnel 31 is provided at the mounting hole 21 . The rubber ring 24 is sleeved on the injection tube 32 or the ceramic funnel 31 to ensure a stable negative pressure in the filter box 1 during the air extraction process.

[0039] The exhaust assembly 6 includes an exhaust pump 61 and an exhaust hose 62 connected to each other. The exhaust hose 62 is connected to the bottom of the filter box 1. A suction hole 14 connected to the exhaust hose 62 is formed at the bottom of the filter box 1. The suction hole 14 is located below the storage plate 4. The suction hole 14 is located at a higher position at the bottom of the filter box 1 to ensure that when the filter box 1 is in a cleaning state, the cleaning liquid in the filter box 1 will not overflow the suction hole 14, thereby ensuring the suction effect of the suction hole 14.

[0040] During actual use, select the required number of filters 3 and collection containers 5, insert the collection container 5 into the storage plate 4, install the filter 3 on the cover 2, and make the position of the filter 3 correspond to the collection container 5, install the cover 2 at the top opening of the filter box 1, and realize the installation of the cover 2 on the filter box 1 through the lock 13.

[0041] The chemicals to be filtered are dropped into the filter 3 , and the vacuum pump 61 is turned on to form a negative pressure inside the filter box 1 , thereby filtering the chemicals under the action of the filter 3 , and filtering operations of multiple groups of filters 3 are achieved under the suction action of the same vacuum pump 61 .

[0042] After the filtration is completed, the cover plate 2 is opened, the storage plate 4 is removed, and the cover plate 2 is replaced. By dripping cleaning liquid into the filter 3, the vacuum pump 61 is turned on, and the filter 3 is cleaned under the action of the vacuum pump 61. After the cleaning is completed, the cover plate 2 is opened, the filter box 1 is turned over, and the cleaning liquid can be poured out to complete the cleaning operation.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0044] Although the present invention uses the following terms more frequently: filter box 1, support plate 11, clamping plate 12, lock 13, air extraction hole 14, cover plate 2, mounting hole 21, rubber plug 22, lock ear 23, rubber ring 24, sealing ring 25, filter 3, ceramic funnel 31, injection tube 32, filter paper 33, filter head 34, placement plate 4, placement hole 41, clamping groove 42, collection container 5, air extraction component 6, air extraction pump 61, air extraction hose 62, etc., the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A rapid filtering device for a chemical laboratory, comprising a filter box (1) and a cover plate (2) installed at the top opening of the filter box (1); characterized in that: The cover plate (2) is formed with a plurality of mounting holes (21), and a plurality of filters (3) for filtering or a plurality of rubber plugs (22) for plugging the mounting holes (21) are mounted in the mounting holes (21); a storage plate (4) detachably connected to the filter box (1) is mounted in the filter box (1), and a collection container (5) corresponding to the position of the plurality of filters (3) is mounted on the storage plate (4); and an exhaust assembly (6) for exhausting air from the inside of the filter box (1) is connected to the bottom of the filter box (1).

2. A rapid filtration device for a chemical laboratory according to claim 1, characterized in that: The cover plate (2) is sealingly arranged at the top opening of the filter box (1), and a sealing ring (25) for sealing the filter box (1) is provided on the outer ring of the cover plate (2).

3. A rapid filtration device for a chemical laboratory according to claim 2, characterized in that: Locking ears (23) are formed at both ends of the cover plate (2), and locking buckles (13) for pressing the locking ears (23) are rotatably hinged at both ends of the filter box (1).

4. A rapid filtration device for a chemical laboratory according to claim 1, characterized in that: The filter box (1) is provided with a support plate (11) for supporting the storage plate (4) and a clamping plate (12) for clamping the storage plate (4), and the support plate (11) is located below the clamping plate (12).

5. A rapid filtration device for a chemical laboratory according to claim 4, characterized in that: A clamping groove (42) for clamping with the clamping plate (12) is formed on the side of the storage plate (4), and the size of the support plate (11) is larger than that of the clamping plate (12).

6. A rapid filtration device for a chemical laboratory according to claim 1, characterized in that: The storage plate (4) is formed with storage holes (41) corresponding one-to-one to the plurality of mounting holes (21), and the collection containers (5) are inserted into the corresponding storage holes (41).

7. A rapid filtration device for a chemical laboratory according to claim 1, characterized in that: The filter (3) is an injection tube (32) or a ceramic funnel (31); the end of the injection tube (32) is connected to a filter head (34); and filter paper (33) is placed in the ceramic funnel (31).

8. A rapid filtration device for a chemical laboratory according to claim 7, characterized in that: A rubber ring (24) for sealing the injection tube (32) or the ceramic funnel (31) is provided at the mounting hole (21).

9. A rapid filtration device for a chemical laboratory according to claim 1, characterized in that: The air extraction component (6) comprises an air extraction pump (61) and an air extraction hose (62) which are connected to each other, and the air extraction hose (62) is connected to the bottom of the filter box (1).

10. A rapid filtration device for a chemical laboratory according to claim 9, characterized in that: The bottom of the filter box (1) is formed with an air extraction hole (14) which is connected to an air extraction hose (62), and the air extraction hole (14) is located below the storage plate (4).

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