CN219879231U

CN219879231U - Solution filtering device

Info

Publication number: CN219879231U
Application number: CN202321207503.7U
Authority: CN
Inventors: 魏承志; 赵丽
Original assignee: Chengdu Beite Danuo Pharmaceutical Co ltd
Current assignee: Chengdu Beite Danuo Pharmaceutical Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-10-24
Anticipated expiration: 2033-05-18

Abstract

The utility model provides a solution filtering device, belongs to the technical field of suction filtering devices, and solves the problems of long filtering time consumption, uncleanness in flushing filter residues and filters and inconvenience in operation in the prior art. The device comprises a base, wherein the base is connected with a suction pipe, a sealing cover is arranged on the base, an evaporation dish is arranged on the base, and the sealing cover is connected with a filter funnel. The base and the sealing cover form a suction space which is communicated with the suction pipe and the filtering funnel, air in the suction space is sucked through the suction pipe, negative pressure is generated in the suction space, the speed of the solution passing through the filter screen is accelerated, and the filtering time is greatly shortened; the filtration time is shortened, the usage amount of the chloroform can be properly increased, and the filter residue and the filter are ensured to be washed cleanly; the evaporating dish arranged in the suction space is used for collecting and placing the filtered extracting solution, and the evaporating dish can be directly sent to the evaporating operation after the last filtering is finished, so that the operation of flushing the beaker or the triangular flask is reduced, and the operation is more convenient.

Description

Solution filtering device

Technical Field

The utility model belongs to the technical field of suction filtration devices, and particularly relates to a solution filtration device.

Background

The content measurement of simethicone is regulated in the two parts of Chinese pharmacopoeia of 2020 edition, the sample is extracted for 8 times by using chloroform, the extracting solution is filtered, the filtrate is placed in an evaporation dish, and the content of the simethicone is calculated according to the weight increase of the evaporation dish after the filtrate is evaporated to dryness.

The traditional technology adopts a natural filtration mode, namely, the solution is filled into a filter device, and the solution passes through a filter screen under the action of gravity. Because of the high extraction times and high simethicone viscosity, the natural filtration takes a long time, the filter residues and the filter are required to be washed by chloroform after the filtration, and the washed solution continues to participate in the next filtration operation, so that the accuracy of the measurement result is ensured; and because natural filtration takes a long time, the usage amount of the chloroform liquid for washing is limited (the filtration time is further prolonged when the chloroform liquid is used too much), so that the filter paper and the residual extracting solution of the funnel cannot be completely collected, and finally the simethicone cannot be effectively washed out, so that the content is low, and the detection result is inaccurate. The filter is directly arranged on the beaker or the triangular flask, so that the extracting solution obtained by filtering the solution is directly contained in the beaker or the triangular flask, and the extracting solution in the beaker or the triangular flask needs to be poured into the evaporating dish for evaporation before evaporation, which is also troublesome.

Disclosure of Invention

In view of the above problems, an object of the present utility model is to provide a solution filtering apparatus, in which a suction space is formed by a base and a sealing cover, the suction space is communicated with a suction pipe and a filtering funnel, and air in the suction space is sucked by the suction pipe, so that negative pressure is generated in the suction space, the rate of solution in the filtering funnel passing through a filter screen is accelerated, and the filtering time is greatly shortened; the filtration time is shortened, the usage amount of the chloroform can be properly increased, and the filter residue and the filter are ensured to be washed cleanly; the evaporating dish arranged in the suction space is used for collecting and placing the filtered extracting solution, and the evaporating dish can be directly sent to the evaporating operation after the last filtering is finished, so that the operation of flushing the beaker or the triangular flask is reduced, and the operation is more convenient.

The technical scheme adopted by the utility model is as follows:

the utility model provides a solution filter equipment, includes the base, the base is connected with the suction tube, the base upper cover is equipped with the sealed cowling, the sealed cowling cover is established on the air inlet of suction tube, be provided with the evaporation dish that is located the sealed cowling on the base, the sealed cowling is connected with the filter funnel that is located evaporation dish top.

Preferably, a sealing gasket attached to the end opening of the sealing cover is arranged on the base.

Preferably, at least two arc-shaped vertical plates which are oppositely arranged are arranged on the base, and the sealing cover is arranged between the two arc-shaped vertical plates.

Preferably, the arc-shaped vertical plate is vertically connected with a screw, the screw is connected with a pressing plate in a threaded manner, and the pressing plate is tightly pressed on the upper end face of the sealing cover.

Preferably, a placing seat is arranged on the base, an arc-shaped groove matched with the evaporating dish is formed in the placing seat, and the evaporating dish is arranged in the arc-shaped groove.

Preferably, an anti-slip pad is arranged in the arc-shaped groove.

Preferably, the base is vertically provided with a sleeve, a supporting rod is connected with the sleeve in a threaded mode, and the supporting rod is fixedly connected with the placement seat.

Preferably, the upper end face of the sealing cover is communicated with a connecting pipe, the filtering funnel comprises a cannula which movably stretches into the connecting pipe, and a sealing ring which is attached to the inner wall of the connecting pipe is sleeved on the cannula.

Preferably, an annular limiting block is fixedly sleeved on the outer wall of the connecting pipe.

Preferably, the sealing cover is made of a transparent material.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

the base and the sealing cover form a suction space which is communicated with a suction pipe and a filtering funnel, and air in the suction space is sucked through the suction pipe, so that negative pressure is generated in the suction space, the speed of solution in the filtering funnel passing through a filter screen is accelerated, and the filtering time is greatly shortened; the filtration time is shortened, the usage amount of the chloroform can be properly increased, and the filter residue and the filter are ensured to be washed cleanly; the evaporating dish arranged in the suction space is used for collecting and placing the filtered extracting solution, and the evaporating dish can be directly sent to the evaporating operation after the last filtering is finished, so that the operation of flushing the beaker or the triangular flask is reduced, and the operation is more convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model;

fig. 2 is a schematic top view of an embodiment of the present utility model.

Description of the drawings: 1-a base; 2-suction tube; 3-a gasket; 4-arc-shaped vertical plates; 5-sealing cover; 6-a screw; 7-pressing plates; 8-sleeve; 9-supporting rods; 10-placing a seat; 11-arc grooves; 12-evaporating dish; 13-a filter funnel; 14-intubation; 15-a sealing ring; 16-an annular limiting block; 17-connecting pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

The present utility model is described in detail below with reference to fig. 1-2.

Examples

The utility model provides a solution filter equipment, includes base 1, base 1 is connected with suction tube 2, base 1 upper shield is equipped with sealed cowling 5, sealed cowling 5 cover is established on the air inlet of suction tube 2, be provided with the evaporation pan 12 that is located sealed cowling 5 on the base 1, sealed cowling 5 is connected with the filter funnel 13 that is located evaporation pan 12 top.

The sealed cover 5 is placed on the base 1 and covers the evaporating dish 12, the suction pipe 2 is connected with a vacuum pump, and the vacuum pump pumps air between the base 1 and the sealed cover 5 through the suction pipe 2 and generates negative pressure, so that the solution in the filter funnel 13 passes through the filter screen, and the filtering time is shortened.

In order to maintain the negative pressure effect better, the gap between the seal cover 5 and the base 1 needs to be kept sealed, so the seal gasket 3 attached to the end opening of the seal cover 5 is arranged on the base 1, and the external air is reduced from entering the space between the seal cover 5 and the base 1 from the gap. In another embodiment of the gasket 3, the gasket 3 can also be wrapped around the end opening of the sealing cap 5.

After each filtering operation is finished, the evaporation pan 12 needs to be lifted up and taken out of the sealing cover 5, and in the process of lifting up the sealing cover 5, the sealing cover 5 may strike the evaporation pan 12, so that the extracting solution in the evaporation pan 12 is spilled out to affect the final measurement result, at least two arc-shaped vertical plates 4 which are oppositely arranged are arranged on the base 1 to avoid the occurrence of the situation, as shown in fig. 2, the two arc-shaped vertical plates 4 are arranged on two sides of the sealing cover 5, the movement of the sealing cover 5 plays a role of guiding, namely, the movement in the vertical direction is always kept in the process of lifting up the sealing cover 5, and the impact on the evaporation pan 12 is avoided.

The arc-shaped vertical plate 4 is vertically connected with a screw rod 6, the screw rod 6 is connected with a pressing plate 7 in a threaded manner, and the pressing plate 7 is tightly pressed on the upper end face of the sealing cover 5. The clamp plate 7 sticiss on sealed cowling 5 through with screw rod 6 screw thread fit, can make sealed cowling 5 closely laminate on sealed pad 3 in the filtration process, increases the sealed effect in clearance, when placing whole device, the spacing of clamp plate 7 can make sealed cowling 5 and base 1 form a whole, conveniently together transport and place.

Because the bottom of evaporation pan 12 is the arc, evaporation pan 12 directly places on a plane and can influence evaporation pan 12's stability, consequently is provided with on base 1 and places seat 10, places and has offered the arc groove 11 with evaporation pan 12 looks adaptation on the seat 10, and evaporation pan 12 places in the arc groove 11 after, can increase its stability.

Further, in order to increase the placement stability of the evaporation pan 12, an anti-slip pad is disposed in the arc-shaped groove 11, so that the friction force at the bottom of the evaporation pan 12 is increased, and the evaporation pan 12 is less prone to rotation and swing.

The vertical sleeve 8 that is provided with on the base 1, threaded connection has bracing piece 9 in the sleeve 8, bracing piece 9 with place seat 10 fixed connection, through the screw-thread fit of bracing piece 9 and sleeve 8, make the height-adjustable of placing seat 10 to shorten evaporation pan 12 to the distance of filter funnel 13, avoid extracting solution to drop into evaporation pan 12 and sputter out evaporation pan 12, lead to the extracting solution loss in the evaporation pan 12, this height-adjusting's structure is filter funnel 13 for adapting to not unidimensional.

The upper end face of the sealing cover 5 is communicated with a connecting pipe 17, the filter funnel 13 comprises a cannula 14 which movably stretches into the connecting pipe 17, and a sealing ring 15 which is attached to the inner wall of the connecting pipe 17 is sleeved on the cannula 14. The filter funnel 13 is movably inserted into the connecting pipe 17 through the insertion pipe 14 to facilitate replacement of the filter funnel 13, and the sealing ring 15 can seal the gap between the insertion pipe 14 and the connecting pipe 17 to maintain the negative pressure effect in the sealing cover 5. Where the lengths of the cannulas 14 of different filter funnels 13 may not be uniform, it is therefore necessary to adjust the height of the evaporation pan 12 as close as possible to the lower port of the cannulas 14, preventing the extraction liquid from splashing out of the evaporation pan 12.

In order to facilitate taking the sealing cover 5, an annular limiting block 16 is fixedly sleeved on the outer wall of the connecting pipe 17, and a hand can be gripped on the annular limiting block 16 to prevent the hand from sliding.

The sealing cap 5 is made of a transparent material such as glass or transparent plastic, and it is preferable to make the sealing cap 5 of glass because negative pressure is generated in the sealing cap 5, plastic is easily deformed and damaged after long-term use.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a solution filter equipment, includes base (1), its characterized in that, base (1) are connected with suction tube (2), base (1) upper shield is equipped with sealed cowling (5), sealed cowling (5) cover is established on the air inlet of suction tube (2), be provided with evaporation dish (12) that are located sealed cowling (5) on base (1), sealed cowling (5) are connected with filter funnel (13) that are located evaporation dish (12) top.

2. A solution filtering device according to claim 1, characterized in that the base (1) is provided with a gasket (3) which engages with the end opening of the sealing cap (5).

3. A solution filtering device according to claim 1, characterized in that the base (1) is provided with at least two oppositely arranged arc-shaped vertical plates (4), and the sealing cover (5) is arranged between the two arc-shaped vertical plates (4).

4. A solution filtering device according to claim 3, characterized in that the arc-shaped vertical plate (4) is vertically connected with a screw rod (6), the screw rod (6) is in threaded connection with a pressing plate (7), and the pressing plate (7) is tightly pressed on the upper end face of the sealing cover (5).

5. The solution filtering device according to claim 1, wherein the base (1) is provided with a placement seat (10), the placement seat (10) is provided with an arc-shaped groove (11) matched with the evaporation pan (12), and the evaporation pan (12) is arranged in the arc-shaped groove (11).

6. A solution filtering device according to claim 5, characterized in that an anti-slip mat is provided in the arcuate slot (11).

7. The solution filtering device according to claim 5, wherein a sleeve (8) is vertically arranged on the base (1), a supporting rod (9) is connected in the sleeve (8) in a threaded manner, and the supporting rod (9) is fixedly connected with the placement seat (10).

8. The solution filtering device according to claim 1, wherein the upper end surface of the sealing cover (5) is communicated with a connecting pipe (17), the filtering funnel (13) comprises a cannula (14) which movably stretches into the connecting pipe (17), and a sealing ring (15) which is attached to the inner wall of the connecting pipe (17) is sleeved on the cannula (14).

9. A solution filtering device according to claim 8, characterized in that the outer wall of the connecting pipe (17) is fixedly sleeved with an annular limiting block (16).

10. A solution filtering device according to claim 1, characterized in that the sealing cap (5) is made of a transparent material.