CN210251415U

CN210251415U - Vacuum suction filtration device

Info

Publication number: CN210251415U
Application number: CN201920424315.7U
Authority: CN
Inventors: 姜洁; 金伟星
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-04-07
Anticipated expiration: 2029-03-29

Abstract

The utility model belongs to the technical field of machinery, a vacuum filtration device is related to, its filtration efficiency who has solved current vacuum filtration device is low, wash inconvenient scheduling problem. The vacuum filtration device comprises a funnel, a filter and a filtration bottle which are sequentially arranged from top to bottom, wherein the lower end of a filter head is detachably connected with the upper end of the filter, filter cloth is detachably arranged in the filter, and the lower end of the filter is detachably connected with the upper end of the filtration bottle; the vacuum filtration device also comprises a reciprocating vacuum pump, wherein the air inlet end of the reciprocating vacuum pump is communicated with the inner cavity of the filtration bottle through an air inlet pipe, and the air outlet end of the reciprocating vacuum pump is communicated with the inner cavity of the funnel through an air outlet pipe. The utility model has the advantages of high filtration efficiency, convenient cleaning and the like.

Description

Vacuum suction filtration device

Technical Field

The utility model belongs to the technical field of machinery, a vacuum filtration device is related to.

Background

The vacuum filtration refers to a method for accelerating water filtration by utilizing negative pressure caused by air suction, and a filtration bottle is connected with a vacuum pump. The funnel is put to the suction filtration bottleneck and is filtered, and the vacuum pump begins to bleed this moment, makes the interior air pressure of buchner flask reduce, if there is any solution in the filter cloth on the funnel to exist, under atmospheric pressure and the effect of gravity, these solutions can flow to buchner flask through the filter cloth in, and remaining solid is then stayed on filter paper to reach filterable mesh.

Vacuum filtration equipment as chinese patent CN 106731092A discloses, including the suction flask, with the suction filtration funnel of suction flask cooperation suction filtration, be provided with the first cork that supplies suction filtration funnel lower extreme to insert the suction filtration bottle between suction filtration funnel and the suction flask, the below of suction filtration bottle is provided with the water drainage tank that has the upper cover, the suction filtration bottle is placed on the upper cover of water drainage tank, the through-hole with the inside intercommunication of water drainage tank is seted up to the bottom of suction filtration bottle, the inside second cork that is provided with the shutoff through-hole of water drainage tank, the below of second cork is connected with the pull rod, the lower extreme of pull rod passes to the water drainage tank outside from the water drainage tank bottom.

However, the filtering efficiency of the vacuum filtration equipment is still low, and after the vacuum filtration equipment is used for a long time, dirt is easily deposited on the filter cloth, and the filter cloth is difficult to clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a vacuum filtration device, the utility model aims to solve the technical problem that: how to improve this vacuum filtration device's filtration efficiency and washing convenience.

The purpose of the utility model can be realized by the following technical proposal:

a vacuum filtration device is characterized by comprising a funnel, a filter and a filtration bottle which are sequentially arranged from top to bottom, wherein the lower end of a filter head is detachably connected with the upper end of the filter, filter cloth is detachably arranged in the filter, and the lower end of the filter is detachably connected with the upper end of the filtration bottle; the vacuum filtration device further comprises a reciprocating vacuum pump, the air inlet end of the reciprocating vacuum pump is communicated with the inner cavity of the filtration bottle through an air inlet pipe, and the air outlet end of the reciprocating vacuum pump is communicated with the inner cavity of the funnel through an air outlet pipe.

The working principle is as follows: when the device is used, the mixed liquid is poured into the funnel, then the reciprocating vacuum pump is started, the gas in the filter flask is sucked into the reciprocating vacuum pump, the air pressure in the filter flask is reduced, the mixed liquid in the funnel can flow towards the direction of the filter flask under the action of the air pressure, the liquid flows into the filter flask through the filter cloth, and the particles are filtered on the filter cloth; and reciprocating vacuum pump can be when breathing in, can be through the outlet duct input gas in to the funnel to further improve the power that mixes liquid and flow towards the buchner flask direction, and then improve filtration efficiency. In addition, the filter is detachably connected with the funnel and the filter flask, and the filter cloth is detachably arranged in the filter, so that the parts can be detached during cleaning, and the cleaning is more convenient.

In the vacuum filtration device, the filter comprises an upper tube body and a lower tube body, an annular step surface is arranged in the lower tube body, a plurality of clamping grooves are formed in the step surface, through holes which correspond to the clamping grooves in a one-to-one mode are formed in the filter cloth, and bosses which can be inserted into the through holes and the clamping grooves simultaneously are arranged at the lower end of the upper tube body. When the filter cloth is installed, the filter cloth can be placed on the step surface of the lower pipe body, the through hole in the filter cloth is aligned with the clamping groove in the step surface, and then the boss on the lower pipe body is simultaneously inserted into the through hole and the clamping groove; when the filter cloth is disassembled, the upper pipe body is pulled out in the same way.

In the vacuum filtration device, the filter further comprises a sealing ring coaxially arranged with the filter, the upper surface of the sealing ring is attached to the lower end surface of the upper pipe body, and the lower surface of the sealing ring is attached to the step surface. After the design has the sealing washer, can avoid gas leakage, improve filtration efficiency.

In the vacuum filtration device, the lower end of the funnel is provided with a first connecting pipe, the first connecting pipe is provided with a first external thread, and the upper pipe body is internally provided with a first internal thread matched with the first external thread. When in connection, the first connecting pipe of the funnel is in threaded connection with the upper pipe body of the filter.

In the vacuum filtration device, the upper end of the filtration bottle is provided with a second connecting pipe, the second connecting pipe is provided with a second external thread, and the lower pipe body is internally provided with a second internal thread matched with the second external thread. When in connection, the second connecting pipe of the filter flask is in threaded connection with the lower pipe body of the filter.

In the vacuum filtration device, the first external thread and the second external thread have the same size, and the first internal thread and the second internal thread have the same size. When the filter cloth needs to be cleaned, clean water can be poured into the funnel without detaching the filter cloth, and then a reciprocating vacuum pump is started to clean the upper surface of the filter cloth; and then the filter is detached and inverted, the lower pipe body of the filter is connected with the first connecting pipe of the funnel, the upper pipe body of the filter is connected with the second connecting pipe of the filter flask, and then the reciprocating vacuum pump is started to clean the filter cloth.

In the vacuum filtration device, the outer side wall of the lower tube body is provided with a mark along the vertical direction. After the design has the sign, can avoid the filter dress to turn over.

Compared with the prior art, the utility model has the advantages of it is following:

1. when the reciprocating vacuum pump sucks air, gas is input into the funnel through the gas outlet pipe, so that the force of the mixed liquid flowing towards the direction of the filter flask is further improved, and the filtering efficiency is further improved;

2. because the filter is detachably connected with the funnel and the filter flask, and the filter cloth is detachably arranged in the filter, the filter can be detached from the filter when being cleaned, and the cleaning is more convenient.

Drawings

Fig. 1 is a schematic structural diagram of one view angle of the vacuum filtration device.

Fig. 2 is a schematic structural diagram of another view angle of the vacuum filtration device.

In the figure, 1, a funnel; 2. a filter; 3. a suction flask; 4. filtering cloth; 5. a reciprocating vacuum pump; 6. an air inlet pipe; 7. an air outlet pipe; 8. a pipe body is arranged; 9. a lower pipe body; 10. a step surface; 11. a card slot; 12. a through hole; 13. a boss; 14. a seal ring; 15. a first connecting pipe; 16. the first external thread; 17. a first internal thread; 18. a second connecting pipe; 19. a second external thread; 20. a second internal thread; 21. and (5) identifying.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the vacuum filtration device comprises a funnel 1, a filter 2 and a filtration bottle 3 which are sequentially arranged from top to bottom, wherein the lower end of a filter head is detachably connected with the upper end of the filter 2, filter cloth 4 is detachably arranged in the filter 2, and the lower end of the filter 2 is detachably connected with the upper end of the filtration bottle 3; the vacuum filtration device also comprises a reciprocating vacuum pump 5, the air inlet end of the reciprocating vacuum pump 5 is communicated with the inner cavity of the filtration bottle 3 through an air inlet pipe 6, and the air outlet end of the reciprocating vacuum pump 5 is communicated with the inner cavity of the funnel 1 through an air outlet pipe 7.

Specifically, as shown in fig. 1 and 2, the filter 2 includes an upper tube 8 and a lower tube 9, an annular step surface 10 is disposed in the lower tube 9, a plurality of clamping grooves 11 are disposed on the step surface 10, through holes 12 corresponding to the clamping grooves 11 are disposed on the filter cloth 4, and a boss 13 capable of being inserted into the through holes 12 and the clamping grooves 11 simultaneously is disposed at the lower end of the upper tube 8. In order to improve the sealing performance, the filter 2 preferably further includes a seal ring 14 coaxially disposed therewith, an upper surface of the seal ring 14 abuts against a lower end surface of the upper pipe 8, and a lower surface of the seal ring 14 abuts against the step surface 10.

As shown in fig. 1 and 2, the lower end of the funnel 1 is provided with a first connecting pipe 15, the first connecting pipe 15 is provided with a first external thread 16, and the upper pipe body 8 is internally provided with a first internal thread 17 matched with the first external thread 16. The upper end of the filtration bottle 3 is provided with a second connecting pipe 18, the second connecting pipe 18 is provided with a second external thread 19, and the lower pipe body 9 is internally provided with a second internal thread 20 matched with the second external thread 19. Preferably, the first external thread 16 and the second external thread 19 are the same size, and the first internal thread 17 and the second internal thread 20 are the same size. The outer side wall of the lower tube body 9 is provided with a mark 21 along the vertical direction.

The working principle of the utility model is as follows: when the device is used, the mixed liquid is poured into the funnel 1, then the reciprocating vacuum pump 5 is started, the gas in the filter flask 3 is sucked into the reciprocating vacuum pump 5, the air pressure in the filter flask 3 is reduced, the mixed liquid in the funnel 1 can flow towards the filter flask 3 under the action of the air pressure, the liquid flows into the filter flask 3 through the filter cloth 4, and particles are filtered on the filter cloth 4; and reciprocating vacuum pump 5 can be when breathing in, can be through 7 input gases in to funnel 1 of outlet duct to further improve the power that mixes liquid and flow towards buchner flask 3 direction, and then improve filtration efficiency.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A vacuum filtration device is characterized by comprising a funnel (1), a filter (2) and a filtration bottle (3) which are sequentially arranged from top to bottom, wherein the lower end of the funnel is detachably connected with the upper end of the filter (2), filter cloth (4) is detachably arranged in the filter (2), and the lower end of the filter (2) is detachably connected with the upper end of the filtration bottle (3); the vacuum filtration device further comprises a reciprocating vacuum pump (5), wherein the air inlet end of the reciprocating vacuum pump (5) is communicated with the inner cavity of the filtration bottle (3) through an air inlet pipe (6), and the air outlet end of the reciprocating vacuum pump (5) is communicated with the inner cavity of the funnel (1) through an air outlet pipe (7).

2. The vacuum filtration device according to claim 1, wherein the filter (2) comprises an upper tube body (8) and a lower tube body (9), an annular step surface (10) is arranged in the lower tube body (9), a plurality of clamping grooves (11) are formed in the step surface (10), through holes (12) corresponding to the clamping grooves (11) in a one-to-one manner are formed in the filter cloth (4), and bosses (13) capable of being inserted into the through holes (12) and the clamping grooves (11) simultaneously are arranged at the lower end of the upper tube body (8).

3. A vacuum filtration apparatus as claimed in claim 2, wherein the filter (2) further comprises a sealing ring (14) coaxially disposed therewith, an upper surface of the sealing ring (14) abuts against a lower end surface of the upper pipe body (8), and a lower surface of the sealing ring (14) abuts against the step surface (10).

4. A vacuum filtration apparatus as claimed in claim 3, wherein the lower end of the funnel (1) is provided with a first connecting pipe (15), the first connecting pipe (15) is provided with a first external thread (16), and the upper pipe body (8) is internally provided with a first internal thread (17) which is matched with the first external thread (16).

5. A vacuum filtration device as claimed in claim 4, wherein the upper end of the filtration bottle (3) is provided with a second connecting pipe (18), the second connecting pipe (18) is provided with a second external thread (19), and the lower pipe body (9) is internally provided with a second internal thread (20) matched with the second external thread (19).

6. Vacuum filtration installation according to claim 5, wherein the first external thread (16) and the second external thread (19) are of the same size, and the first internal thread (17) and the second internal thread (20) are of the same size.

7. Vacuum filtration installation according to claim 6, wherein the outer side wall of the lower tube body (9) is provided with a marking (21) in the vertical direction.