CN214389081U

CN214389081U - Filtering device

Info

Publication number: CN214389081U
Application number: CN202120285722.1U
Authority: CN
Inventors: 罗威
Original assignee: Beijing Yuanjite Biotechnology Co ltd
Current assignee: Beijing Yuanjite Biotechnology Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-10-15
Anticipated expiration: 2031-02-01

Abstract

The utility model relates to a filter equipment, including the collecting bottle, seted up the installing port in the upper end of collecting bottle, be provided with the extraction opening at the upside of collecting bottle body, be provided with the funnel in the installing port department of collecting bottle, funnel and the sealed cooperation of collecting bottle fill up in the funnel and are equipped with filter paper, it has the collector tube that communicates with the funnel liquid outlet to peg graft in the collecting bottle, is provided with the intercommunication mouth that is used for carrying out the intercommunication to collector tube and collecting bottle at the upside of collector tube. This application has the advantage that improves the convenience of filtering operation.

Description

Filtering device

Technical Field

The application relates to the field of biological sample liquid purification devices, in particular to a filtering device.

Background

At present, in the process of carrying out various biological reaction experiments, detection and production, in order to improve the precision, a filtering device is often required to be used for filtering some impurities in a biological sample liquid.

In the related technology, the filtering device mainly comprises a liquid collecting bottle with an opening at the upper end, an air suction opening is arranged at the upper side of the liquid collecting bottle, a funnel which is matched with the bottle opening of the liquid collecting bottle in a sealing way is arranged at the bottle opening of the liquid collecting bottle, and filter paper is padded in the funnel; when filtering biological sample liquid, at first pad in the funnel after wetting filter paper, then install the funnel at the opening part of collecting bottle, then use the rubber tube with extraction opening and vacuum pump intercommunication, after opening the vacuum pump, produce the negative pressure in the collecting bottle and take out the biological sample liquid in the funnel to the collecting bottle, filter paper filters the impurity in the biological sample liquid.

With respect to the related art in the above, the inventors consider that: after the biological liquid medicine is filtered, the aluminum liquid needs to be poured out of the liquid collecting bottle, the residual filtrate in the base liquid bottle can cause certain waste, and in addition, the residual filtrate in the base liquid collecting bottle needs to be cleaned before the next filtering operation is carried out, so that the possibility of cross contamination is reduced, and the filtering operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to improve the convenience of filtering operation, the application provides a filter equipment.

The application provides a filter equipment adopts following technical scheme:

the utility model provides a filter equipment, includes the collecting tank, has seted up the installing port in the upper end of collecting tank, is provided with the extraction opening at the upside of collecting tank body, is provided with the funnel in the installing port department of collecting tank, and the funnel cooperates with the collecting tank is sealed, fills up in the funnel and is equipped with filter paper, has the collector tube that communicates with the funnel liquid outlet in the interpolation of collecting tank, is provided with the intercommunication mouth that is used for carrying out the intercommunication to collector tube and collecting tank at the upside of collector tube.

By adopting the technical scheme, when a worker filters biological sample liquid, the liquid collecting pipe is firstly inserted into the liquid collecting bottle, then the funnel is arranged at the mounting opening and is communicated with the liquid collecting pipe, the liquid collecting pipe is communicated with the inner cavity of the liquid collecting bottle, then the air suction opening is communicated with the vacuum pump, filter paper is laid in the funnel after being wetted, then the vacuum pump is started, the biological sample liquid to be filtered is poured into the funnel, the filter paper can filter the sample liquid, and filtrate flows into the liquid collecting pipe and is collected in the liquid collecting pipe; after the suction filtration is finished, disconnecting the air exhaust port from the vacuum pump, then taking the funnel down from the mounting port, taking the liquid collecting pipe out of the liquid collecting bottle, taking out the filter cake, scrubbing the funnel, and then replacing the liquid collecting pipe to continue the suction filtration operation; by arranging the liquid collecting pipe, the filtrate is not directly contacted with the liquid collecting bottle, so that the steps of brushing the liquid collecting bottle are reduced, and the convenience of filtering operation is improved; in addition, when the vacuum pump stops working first due to power failure or misoperation of workers, the liquid sucked into the liquid collecting bottle is prevented from polluting filtrate.

Optionally, a sealing plug is arranged between the funnel and the liquid collecting bottle; the sealing plug is embedded in the mounting opening, the peripheral surface of the sealing plug is tightly matched with the mounting opening, a connecting part is convexly arranged at one end of the sealing plug, which is positioned in the liquid collecting bottle, the liquid collecting pipe is in threaded connection with the connecting part, and a mounting hole for communicating the funnel and the liquid collecting pipe is formed in the sealing plug; the bottom of the funnel is provided with a connecting pipe which is arranged in the mounting hole in a penetrating way.

By adopting the technical scheme, when biological sample liquid is filtered, firstly, the connecting pipe of the funnel penetrates through the mounting hole to complete the fixation between the funnel and the sealing plug, then the liquid collecting pipe and the connecting part are fixed in a screwed mode, the liquid collecting pipe is inserted into the liquid collecting bottle, the sealing plug is pressed to enable the sealing plug to be plugged in the mounting hole, and filtering is carried out after filter paper is mounted; after filtering, disconnecting the air suction port from the vacuum pump, then taking the sealing plug from the mounting port, and screwing the liquid collecting pipe to detach the liquid collecting pipe from the connecting part; through setting up sealing plug and connecting portion, improve the convenience to the dismouting of collector tube in the collection liquid bottle.

Optionally, the bottom of the liquid collecting tube is conical, a supporting pad is arranged at the bottom of the liquid collecting bottle in a padded mode, a supporting groove is formed in the position, opposite to the mounting opening, of the supporting pad, and when the liquid collecting tube is inserted into the liquid collecting bottle in an inserted mode, the bottom end of the liquid collecting tube is embedded into the supporting groove.

Through adopting above-mentioned technical scheme, insert the collector tube after the collector bottle, the toper bottom of collector tube inlays locates in supporting the groove to restrict, make and the centering to the collector tube, improve the stability of collector tube installation in the collector bottle.

Optionally, an air release pipe is convexly arranged on the liquid collection bottle, and a sealing barrel for sealing the air release pipe is screwed on the air release pipe.

By adopting the technical scheme, the sealing cylinder on the air release pipe is unscrewed after the suction filtration is finished, so that the internal and external atmospheric pressures of the liquid collection bottle are in a balanced state, and then the sealing plug is pulled out; through setting up the gas release pipe and a sealed section of thick bamboo, need not frequently carry out the dismouting to extraction opening and vacuum pump to further improved the convenience of filtering operation.

Optionally, a sealing cone is convexly arranged in the sealing cylinder, and when the sealing cylinder is screwed on the air release pipe, the sealing cone is inserted into the air release pipe.

By adopting the technical scheme, the sealing cone is inserted into the air release pipe to seal the air release pipe in the process of screwing the sealing cylinder; by arranging the sealing cone, the sealing performance of the sealing cylinder is improved.

Optionally, the funnel comprises a filter bowl with openings at two ends and a bottom support coaxially arranged below the filter bowl; the inside of the bottom support is hollow and is communicated with the liquid collecting pipe, a sand core layer communicated with the cavity inside the bottom support is arranged on the upper end surface of the bottom support, and the filter paper pad is arranged on the upper surface of the bottom support; the filter cup is detachably connected with the bottom support.

By adopting the technical scheme, before filtration, the bottom support and the filter cup are firstly detached, then the filter paper is installed on the bottom support, and then the filter cup is installed on the bottom support; after the suction filtration is finished, detaching the filter cup from the bottom support, then detaching the filter paper together with the filter cake from the bottom support, and respectively cleaning the filter cup and the bottom support; through mutually supporting filter bowl and collet, improve the convenience of filter paper installation and filter the convenience of accomplishing the back and clear up the filter cake.

Optionally, an embedding groove is formed in the upper end face of the bottom support, the sand core layer is located in the embedding groove, and the filter paper is matched with the embedding groove and embedded in the embedding groove; the bottom protrusion of filter bowl is provided with the clamping ring, clamping ring and caulking groove adaptation, clamping ring inlay locate in the caulking groove with filter paper support tight fit.

By adopting the technical scheme, before filtering, the bottom support and the filter cup are firstly detached, then the filter paper is wetted and laid in the caulking groove, then the filter cup is installed, the pressing ring on the filter cup is pressed into the caulking groove, and the filter paper is kept stable under the combined action of the bottom support and the pressing ring; through setting up the caulking groove and pressing and trade, improve the convenience and the stability of filter paper installation.

Optionally, the bulge is provided with the stopper in the periphery of pressing ring set up the spout that extends along collet axis direction on the inner wall of caulking groove, be provided with in the bottom of spout with the spout perpendicular and with the spacing groove of spout intercommunication, when the filter bowl is fixed in on the collet, the stopper is arranged in the spacing groove.

By adopting the technical scheme, before filtering, the bottom support and the filter cup are firstly detached, then the filter paper is wetted and laid in the caulking groove, then the limiting block is aligned with the sliding groove and pressed downwards, the pressing ring is embedded into the caulking groove to press the filter paper tightly, the limiting block corresponds to the limiting groove at the moment, then the filter cup is rotated, and the limiting block is clamped into the limiting groove, so that the filter cup is kept stable on the bottom support; after the filtration is finished, the filter bowl is rotated, the clamping block rotates along with the filter bowl to be transferred into the sliding groove from the limiting groove, and then the filter bowl is pulled outwards to finish the disassembly of the filter bowl; through setting up stopper, spout and spacing groove, improve the convenience that the filter bowl was installed in the collet and is torn open to improve the convenience of handling the filter cake.

Optionally, a circular base is arranged at the bottom of the liquid collecting bottle, and a plurality of clamping plates used for clamping the liquid collecting bottle are arranged on the base in a protruding mode.

Through adopting above-mentioned technical scheme, the base can improve the contact area and the frictional force of collection liquid bottle and desktop to improve the stability of collection liquid bottle.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the liquid collecting pipe, the filtrate is not directly contacted with the liquid collecting bottle, so that the steps of brushing the liquid collecting bottle are reduced, and the convenience of filtering operation is improved;

2. by arranging the air exhaust pipe and the sealing barrel, the air exhaust port and the vacuum pump do not need to be frequently disassembled and assembled, so that the convenience of filtering operation is further improved;

3. the convenience and the stability of the filter paper installation are improved by arranging the caulking groove and pressing;

4. by arranging the limiting block, the sliding groove and the limiting groove, the convenience of mounting and dismounting the filter cup on and from the bottom support is improved, so that the convenience of processing a filter cake is improved;

5. through setting up the base, improve the stability of collecting liquid bottle.

Drawings

FIG. 1 is a schematic diagram of a filter device according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the structure of the liquid collecting tube matched with the liquid collecting bottle in the embodiment of the application;

FIG. 3 is a schematic view of the structure of the liquid collection pipe matched with the sealing plug in the embodiment of the application;

FIG. 4 is a schematic view of the configuration of the filter bowl and shoe in the embodiment of the present application;

fig. 5 is a schematic structural diagram of a sealing cylinder in the embodiment of the present application.

Description of reference numerals: 1. a liquid collecting bottle; 10. an installation port; 11. an air extraction opening; 12. discharging the air pipe; 2. a funnel; 20. a filter bowl; 200. pressing a ring; 201. a limiting block; 21. a bottom support; 210. caulking grooves; 211. a sand core layer; 212. a chute; 213. a limiting groove; 3. filtering paper; 4. a liquid collecting pipe; 40. a communication port; 5. a connecting pipe; 6. a sealing plug; 60. a connecting portion; 61. mounting holes; 7. a support pad; 70. a support groove; 8. a sealing cylinder; 80. sealing the cone; 9. a base; 90. clamping a plate; 900. and (4) mounting the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a filtering device. Referring to fig. 1 and 2, the filtering device comprises a liquid collecting bottle 1, a mounting opening 10 is formed in the upper end of the liquid collecting bottle 1, an air suction opening 11 is formed in the upper side of the bottle body of the liquid collecting bottle 1, a funnel 2 is arranged at the mounting opening 10 of the liquid collecting bottle 1, the funnel 2 is in sealed fit with the liquid collecting bottle 1, filter paper 3 is arranged in the funnel 2 in a padding mode, a liquid collecting pipe 4 communicated with a liquid outlet of the funnel 2 is inserted in the liquid collecting bottle 1, and a communication opening 40 used for communicating the liquid collecting pipe 4 with the liquid collecting bottle 1 is formed in the upper side of the liquid collecting pipe 4.

Referring to fig. 2 and 3, the liquid collecting bottle 1 is conical, and the mounting port 10 is arranged on the small end face of the liquid collecting bottle 1; a connecting pipe 5 is convexly arranged at the bottom of the funnel 2, an opening is arranged at the upper end of the liquid collecting pipe 4, and the connecting pipe 5 penetrates through the mounting opening 10 and is inserted into the liquid collecting pipe 4; in order to facilitate the matching of the funnel 2 and the liquid collecting bottle 1 and improve the convenience of taking the liquid collecting tube 4 out of the liquid collecting bottle 1, a sealing plug 6 is arranged between the funnel 2 and the liquid collecting bottle 1, the sealing plug 6 is in a circular truncated cone shape and is made of elastic rubber materials, the diameter of the small end face of the sealing plug 6 is smaller than that of the mounting hole 61, the diameter of the large end face of the sealing plug 6 is larger than that of the mounting hole 10, the sealing plug 6 is inserted into the mounting hole 10, and the small end face of the sealing plug is positioned in the liquid collecting bottle 1; a connecting part 60 is convexly arranged on the small end face of the sealing plug 6, and the connecting part 60 is coaxially arranged with the sealing plug 6 and integrally cast with the sealing plug 6; the mounting hole 61 is formed in the sealing plug 6 along the axis direction of the sealing plug 6, the mounting hole 61 penetrates through the sealing plug 6 and the connecting portion 60 in sequence, the connecting pipe 5 of the funnel 2 penetrates through the mounting hole 61, threads are formed in the periphery of the connecting portion 60, threads are arranged on the inner wall of the opening of the liquid collecting pipe 4, and the liquid collecting pipe 4 is in threaded fit with the connecting portion.

In order to improve the stability of the liquid collecting tube 4, referring to fig. 2, the bottom of the liquid collecting tube 4 is conical, the bottom of the liquid collecting bottle 1 is padded with a supporting pad 7 made of flexible rubber material, a supporting groove 70 is formed in the position, facing the mounting opening 10, of the supporting pad 7, and when the liquid collecting tube 4 is inserted into the liquid collecting bottle 1, the bottom end of the liquid collecting tube 4 is embedded into the supporting groove 70.

In order to improve the convenience of pressure relief, referring to fig. 4, an air release pipe 12 is convexly arranged at the bottom of the bottle body of the liquid collection bottle 1, and a sealing cylinder 8 for sealing the air release pipe 12 is screwed on the air release pipe 12; in order to improve the sealing performance of the sealing cylinder 8, a sealing cone 80 is convexly arranged in the sealing cylinder 8, the sealing cone 80 is made of flexible rubber materials, and when the sealing cylinder 8 is screwed on the air exhaust pipe 12, the sealing cone 80 is inserted into the air exhaust pipe 12.

In order to improve the convenience of installing and detaching the filter paper 3 in the funnel 2, referring to fig. 5, the funnel 2 comprises a filter cup 20 with two open ends and a bottom support 21 coaxially arranged below the filter cup 20; the bottom support 21 is conical and hollow, the connecting pipe 5 is arranged at the tip end of the bottom support 21 and is communicated with a cavity in the bottom support 21, an embedded groove 210 is formed in the upper end face of the bottom support 21, the filter paper 3 is matched with the embedded groove 210 and is embedded in the embedded groove 210, a sand core layer 211 communicated with the cavity in the bottom support 21 is arranged in the middle of the embedded groove 210, a pressing ring 200 is convexly arranged at the bottom end of the filter cup 20, the pressing ring 200 and the filter cup 20 are coaxially arranged, the outer diameter of the pressing ring 200 is equal to the diameter of the embedded groove 210, and the pressing ring 200 is embedded in the embedded groove 210 to tightly press the filter paper 3; in order to fix the filter cup 20 conveniently, the limiting block 201 is arranged on the periphery of the pressing ring 200 in a protruding mode, the inner wall of the embedding groove 210 is provided with a sliding groove 212 extending along the axial direction of the bottom support 21, the bottom of the sliding groove 212 is provided with a limiting groove 213 which is perpendicular to the sliding groove 212 and communicated with the sliding groove 212, and when the filter cup 20 is fixed on the bottom support 21, the limiting block 201 is located in the limiting groove 213.

Referring to fig. 1, in order to improve the stability of collecting bottle 1, be provided with circular shape base 9 bottom collecting bottle 1, the protrusion is provided with a plurality of cardboard 90 on base 9, cardboard 90 is made by elastic material, a plurality of cardboard 90 are the inner peripheral surface that the annular was arranged and a plurality of cardboard 90 encloses into mounting groove 900, the diameter of mounting groove 900 opening is less than the diameter of collecting bottle 1 main aspects, when collecting bottle 1 is fixed in on base 9, cardboard 90 opens, the main aspects of collecting bottle 1 are inlayed and are located in mounting groove 900, a plurality of cardboard 90 hold collecting bottle 1 tightly.

The implementation principle of the filtering device in the embodiment of the application is as follows: when filtering biological sample liquid, a worker firstly inserts the bottom end of the liquid collecting bottle 1 into the mounting groove 900, the clamping plate 90 tightly holds the liquid collecting bottle 1, then the base 9 and the liquid collecting bottle 1 are placed on a desktop, and the vacuum pump is communicated with the air exhaust port 11 through a pipeline; then, the funnel 2 is installed, the filter paper 3 is wetted and then laid in the caulking groove 210, the limiting block 201 is aligned with the sliding groove 212 and pressed downwards, the pressing ring 200 is embedded in the caulking groove 210 to press the filter paper 3 tightly, the limiting block 201 corresponds to the limiting groove 213, then the filter cup 20 is rotated, the limiting block 201 is clamped in the limiting groove 213, so that the filter cup 20 is kept stable on the bottom support 21, and then the connecting pipe 5 penetrates through the installation hole 61 to complete the fixation of the funnel 2 and the sealing plug 6; the liquid collecting tube 4 and the connecting part 60 are fixed in a threaded manner, the liquid collecting tube 4 is inserted into the liquid collecting bottle 1, the sealing plug 6 is pressed to enable the sealing plug 6 to be tightly plugged in the mounting opening 10, the conical bottom of the liquid collecting tube 4 is embedded in the supporting groove 70, then the vacuum pump is started, biological sample liquid to be filtered is poured into the filter cup 20, the filter paper 3 can filter the biological sample liquid, the filtered filtrate is collected in the liquid collecting tube 4, and the filtrate is not directly contacted with the liquid collecting bottle 1, so that the step of brushing the liquid collecting bottle 1 is reduced; in addition, when the vacuum pump stops working first due to power failure or misoperation of workers, the filtrate is prevented from being polluted by liquid sucked back into the liquid collecting bottle 1.

After the filtering is finished, the sealing barrel 8 is screwed, the sealing cone 80 is withdrawn from the air release pipe 12, the internal and external atmospheric pressures of the liquid collecting bottle 1 are in a balanced state, then the sealing plug 6 is taken down from the mounting port 10, the liquid collecting pipe 4 is screwed to detach the liquid collecting pipe 4 from the connecting part 60, after the liquid collecting pipe 4 is detached, the filter cup 20 is rotated, the clamping block rotates along with the sealing plug to be transferred into the sliding groove 212 from the limiting groove 213, then the filter cup 20 is pulled outwards to finish the detachment of the filter cup 20, then the filter paper 3 with the filter cake is treated, then the filter cup 20 and the bottom support 21 are cleaned, the filter paper 3 is mounted, the liquid collecting pipe 4 is replaced, and the next filtering operation is carried out after the sealing barrel is screwed down. To sum up, through setting up collecting tube 4, the filtrating is not direct with collecting bottle 1 and is carried out the contact to reduce the step of scrubbing collecting bottle 1, improved the convenience of filtering operation.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A filter device, characterized by: the liquid collection bottle comprises a liquid collection bottle (1), a mounting opening (10) is formed in the upper end of the liquid collection bottle (1), an air suction opening (11) is formed in the upper side of the bottle body of the liquid collection bottle (1), a funnel (2) is arranged at the mounting opening (10) of the liquid collection bottle (1), the funnel (2) is in sealing fit with the liquid collection bottle (1), filter paper (3) is arranged in the funnel (2) in a padding mode, a liquid collection pipe (4) communicated with a liquid outlet of the funnel (2) is inserted in the liquid collection bottle (1), and a communication opening (40) used for communicating the liquid collection pipe (4) with the liquid collection bottle (1) is formed in the upper side of the liquid collection pipe (4).

2. A filter arrangement according to claim 1 wherein: a sealing plug (6) is arranged between the funnel (2) and the liquid collecting bottle (1); the sealing plug (6) is embedded in the mounting port (10), the peripheral surface of the sealing plug is tightly matched with the mounting port (10), a connecting part (60) is arranged at one end, located in the liquid collecting bottle (1), of the sealing plug (6) in a protruding mode, the liquid collecting pipe (4) is in threaded connection with the connecting part (60), and a mounting hole (61) used for communicating the funnel (2) with the liquid collecting pipe (4) is formed in the sealing plug (6); the bottom of the funnel (2) is provided with a connecting pipe (5), and the connecting pipe (5) penetrates through the mounting hole (61).

3. A filter arrangement according to claim 2, wherein: the bottom of the liquid collecting pipe (4) is conical, a supporting pad (7) is arranged at the bottom of the liquid collecting bottle (1) in a padded mode, a supporting groove (70) is formed in the position, right facing the mounting opening (10), of the supporting pad (7), and when the liquid collecting pipe (4) is inserted into the liquid collecting bottle (1), the bottom end of the liquid collecting pipe (4) is embedded into the supporting groove (70).

4. A filter arrangement according to claim 2, wherein: an air release pipe (12) is arranged on the liquid collecting bottle (1) in a protruding mode, and a sealing barrel (8) used for sealing the air release pipe (12) is connected to the air release pipe (12) in a threaded mode.

5. A filter arrangement according to claim 4 wherein: a sealing cone (80) is convexly arranged in the sealing cylinder (8), and when the sealing cylinder (8) is screwed on the air exhaust pipe (12), the sealing cone (80) is inserted in the air exhaust pipe (12).

6. A filter arrangement according to claim 1 wherein: the funnel (2) comprises a filter cup (20) with two open ends and a bottom support (21) coaxially arranged below the filter cup (20); the bottom support (21) is hollow and communicated with the liquid collecting pipe (4), a sand core layer (211) communicated with the cavity in the bottom support (21) is arranged on the upper end surface of the bottom support (21), and the filter paper (3) is arranged on the upper surface of the bottom support (21) in a cushioning manner; the filter cup (20) is detachably connected with the bottom support (21).

7. A filter arrangement according to claim 6 wherein: an embedding groove (210) is formed in the upper end face of the bottom support (21), the sand core layer (211) is located in the embedding groove (210), and the filter paper (3) is matched with the embedding groove (210) and embedded in the embedding groove (210); the bottom protrusion of filter bowl (20) is provided with according to clamping ring (200), according to clamping ring (200) and caulking groove (210) adaptation, press clamping ring (200) to inlay and locate in caulking groove (210) and support tight fit with filter paper (3).

8. A filter arrangement according to claim 7 wherein: the protruding stopper (201) that is provided with in the periphery of pressing ring (200) offer on the inner wall of caulking groove (210) along runner (212) that collet (21) axis direction extends, be provided with in the bottom of runner (212) with runner (212) perpendicular and with spacing groove (213) of runner (212) intercommunication, when filter bowl (20) are fixed in on collet (21), stopper (201) are located spacing groove (213).

9. A filter arrangement according to claim 1 wherein: the liquid collecting bottle clamping device is characterized in that a round base (9) is arranged at the bottom of the liquid collecting bottle (1), and a plurality of clamping plates (90) used for clamping the liquid collecting bottle (1) are arranged on the base (9) in a protruding mode.