CN218686737U - Switching filtration and filter equipment - Google Patents
Switching filtration and filter equipment Download PDFInfo
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- CN218686737U CN218686737U CN202222024533.6U CN202222024533U CN218686737U CN 218686737 U CN218686737 U CN 218686737U CN 202222024533 U CN202222024533 U CN 202222024533U CN 218686737 U CN218686737 U CN 218686737U
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Abstract
The utility model provides a switching filter structure and a filter device, the filter device comprises an extraction bottle and a concentration bottle, the extraction bottle is connected with the concentration bottle through the switching filter structure, the switching filter structure comprises a switching piece, be equipped with on the adaptor be used for with the first connection structure of the bottleneck sealing connection of concentrated bottle and be used for with the second connection structure of the bottleneck sealing connection of extraction bottle, first, second connection structure sets up and communicates each other dorsad mutually, and filter has been arranged in intercommunication passageway department between first, the second connection structure. The utility model provides a switching filtration can effectively solve and use among the prior art glass psammitolite funnel to have the inconvenient operation when the extract filters and lead to the technical problem of sample loss because of the extract volatilizees in the filter process.
Description
Technical Field
The utility model relates to a switching filtration and switching filter equipment belongs to filter equipment technical field.
Background
Current determination of Petroleum hydrocarbons (C) in soil 10 -C 40 ) And when semi-volatile organic compounds are used, the collected soil sample needs to be pretreated, and the pretreatment process comprises extraction, dehydration, concentration and purification. The concrete process is as follows, firstly, placing a soil sample in an extraction bottle, adding an extraction liquid for extraction, then adding anhydrous sodium sulfate into the extraction bottle in the experimental analysis process to dehydrate the extraction liquid, after dehydration, experimenters need to separate the anhydrous sodium sulfate from the extraction liquid by using a glass sand core funnel, and transferring the separated extraction liquid into a concentration bottle for concentration.
There are some problems when using glass psammitolite funnel to carry out solid-liquid separation operation, specifically are: 1. in the filtering process, experimenters need to hold the glass sand core funnel in the whole process and finally the extraction flask needs to be rinsed by the organic solvent, so that the whole filtering process needs to be completed by cooperation of at least two experimenters, and the use is very inconvenient; 2. the extraction liquid belongs to organic solvent and is volatile, and the glass sand core funnel is of an open structure, so that the sample loss is easily caused by solid-liquid separation by using the glass sand core funnel.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a switching filtration to there is the inconvenient operation and because of the extract volatilizees the technical problem who leads to the sample loss in the filtering process when using glass psammitolite funnel to extract to filter among the solution prior art. And simultaneously, the utility model also provides a filter equipment to solve above-mentioned problem.
The utility model discloses well transfer filter structure adopts following technical scheme:
this switching filtration includes the adaptor, is equipped with on the adaptor be used for with the first connection structure of the bottleneck sealing connection of concentrated bottle and be used for with the second connection structure of the bottleneck sealing connection of extraction bottle, first, second connection structure sets up and communicates each other mutually back on the back, and filter has been arranged to intercommunication passageway department between first, the second connection structure.
Has the advantages that: the utility model provides a switching filtration, during the use, the bottleneck of concentration bottle and the first connection structure sealing connection of adaptor and the bottleneck of extraction bottle and the second connection structure sealing connection of adaptor earlier, then adjust the gesture of whole device, make the extraction bottle be located the top of concentration bottle, the extract in the extraction bottle flows into the concentration bottle through the filter piece of intercommunication passageway department this moment, compare in the mode that the handheld glass psammitolite funnel filters among the prior art, the utility model provides a switching filtration can be connected extraction bottle and concentration bottle and be a whole, can place when filtering and filter at the assigned position, and it is comparatively convenient to operate; in addition, the first connecting structure is connected with the bottle opening of the concentration bottle in a sealing manner, and the second connecting structure is connected with the bottle opening of the extraction bottle in a sealing manner, so that the volatilization of extraction liquid in the filtering process can be avoided, and the loss of experimental samples is reduced.
Furthermore, the first connecting structure comprises a connecting cover which is buckled at the bottle mouth of the concentrated bottle, and a sealing ring which is used for being matched with the bottle mouth of the concentrated bottle in a sealing mode is arranged in the connecting cover.
Has the advantages that: the concentrated bottle is connected through the spiral-lock form with connecting the lid, has easy dismounting's characteristics, and the setting of sealing washer also can prevent that the extraction liquid from volatilizing through the junction between concentrated bottle and the connection lid, guarantees experimental sample's completeness.
Furthermore, the connecting sleeve is provided with a threaded section, the inner wall surface of the threaded section is provided with an internal thread used for being in sealing connection with the bottle opening of the extraction bottle, and the threaded section forms the second connecting structure.
Has the advantages that: the extraction bottle is connected with the thread section of the connecting sleeve through threads, and the extraction bottle has the characteristics of high connecting efficiency and good sealing property.
Furthermore, the connecting sleeve is also provided with an extending section extending away from the threaded section, and the extending section extends into the connecting cover to form the communication channel.
Has the advantages that: the inside of stretching into the section and stretching into the connection lid is arranged and can be reduced switching filtration in the ascending size of direction of height for switching filtration is whole device focus more concentrated after connecting extraction bottle and concentrated bottle, makes things convenient for taking or placing of device.
Furthermore, one end of the threaded section, which is back to the extending section, is flush with the end surface of the connecting cover.
Has the advantages that: set up like this and can make the extraction flask can not lead to the extraction flask to be far away with the distance of connecting the lid because of interfering with the screw thread section when being connected to make whole device compacter on the direction of height, conveniently take or place whole device when filtering.
Furthermore, the filtering piece is a filtering piece, and the communication channel is provided with an annular step for placing the filtering piece.
Has the beneficial effects that: the filter disc and the annular step are matched, so that the filter disc can be conveniently detached after being filtered, and the filter disc can be cleaned or replaced.
Furthermore, the adaptor is provided with an air exhaust hole used for being connected with an air exhaust device, and the air exhaust hole is communicated with the first connecting structure.
Has the advantages that: when filtering, air exhaust device accessible bleed hole extracts the inside gas of concentrated bottle for the inside formation negative pressure of concentrated bottle, thereby improves filtration efficiency.
Further, the connecting sleeve and the connecting cover are integrally formed.
Has the beneficial effects that: the device has the characteristics of stable structure and convenience in processing.
The utility model discloses well filter equipment adopts following technical scheme:
this filter equipment includes extraction bottle and concentrated bottle, is connected through switching filtration between extraction bottle and the concentrated bottle, and this switching filtration includes the adaptor, be equipped with on the adaptor be used for with the first connection structure of the bottleneck sealing connection of concentrated bottle and be used for with the second connection structure of the bottleneck sealing connection of extraction bottle, first, second connection structure sets up mutually back on the back and communicates each other, and filter has been arranged to intercommunication passageway department between first, the second connection structure.
Has the advantages that: the utility model provides a filtering device, during the use, the bottleneck of concentration bottle and the first connection structure sealing connection of adaptor and the bottleneck of extraction bottle and the second connection structure sealing connection of adaptor earlier, then adjust the gesture of whole device, make the extraction bottle be located the top of concentration bottle, extract in the extraction bottle at this moment flows into the concentration bottle through the filter piece of intercommunication passageway department, compare in the mode that the handheld glass psammitolite funnel filters among the prior art, the utility model provides a filtering device can be connected extraction bottle and concentration bottle and be a whole, can place when filtering and filter at the assigned position, and it is comparatively convenient to operate; in addition, the first connecting structure is connected with the bottle opening of the concentration bottle in a sealing manner, and the second connecting structure is connected with the bottle opening of the extraction bottle in a sealing manner, so that the volatilization of extraction liquid in the filtering process can be avoided, and the loss of experimental samples is reduced.
Furthermore, the first connecting structure comprises a connecting cover which is buckled at the bottle mouth of the concentrated bottle, and a sealing ring which is used for being matched with the bottle mouth of the concentrated bottle in a sealing mode is arranged in the connecting cover.
Has the advantages that: the concentrated bottle is connected through the spiral-lock form with connecting the lid, has easy dismounting's characteristics, and the setting of sealing washer also can prevent that the extraction liquid from volatilizing through the junction between concentrated bottle and the connection lid, guarantees experimental sample's completeness.
Furthermore, the connecting sleeve is provided with a threaded section, the inner wall surface of the threaded section is provided with an internal thread used for being in sealing connection with the bottle opening of the extraction bottle, and the threaded section forms the second connecting structure.
Has the advantages that: the extraction bottle is connected with the thread section of the connecting sleeve through threads, and the extraction bottle has the characteristics of high connecting efficiency and good sealing property.
Furthermore, the connecting sleeve is also provided with an extending section extending away from the threaded section, and the extending section extends into the connecting cover to form the communication channel.
Has the advantages that: the inside of stretching into the section and stretching into the connection lid is arranged and can be reduced switching filtration in the ascending size of direction of height for switching filtration is whole device focus more concentrated after connecting extraction bottle and concentrated bottle, makes things convenient for taking or placing of device.
Furthermore, one end of the threaded section, which is back to the extending section, is flush with the end surface of the connecting cover.
Has the advantages that: set up like this and can make the extraction flask can not lead to the extraction flask to be far away with the distance of connecting the lid because of interfering with the screw thread section when being connected to make whole device compacter on the direction of height, conveniently take or place whole device when filtering.
Furthermore, the filtering piece is a filtering piece, and the communication channel is provided with an annular step for placing the filtering piece.
Has the beneficial effects that: the filter disc and the annular step are matched, so that the filter disc can be conveniently detached after being filtered, and the filter disc can be cleaned or replaced.
Furthermore, the adaptor is provided with an air exhaust hole used for being connected with an air exhaust device, and the air exhaust hole is communicated with the first connecting structure.
Has the advantages that: when filtering, air exhaust device accessible bleed hole extracts the inside gas of concentrated bottle for the inside formation negative pressure of concentrated bottle, thereby improves filtration efficiency.
Further, the connecting sleeve and the connecting cover are integrally formed.
Has the advantages that: the device has the characteristics of stable structure and convenience in processing.
Furthermore, the extraction flask is provided with a liquid injection hole for adding the leacheate into the extraction flask.
Has the advantages that: after the extraction liquid in the extraction bottle is filtered, the leacheate needs to be added into the extraction bottle for leaching, the leacheate can be directly added into the extraction bottle through the liquid injection hole, the extraction bottle does not need to be taken down, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic view of the filtering apparatus according to the present invention in use;
fig. 2 is an exploded view of the filter device of the present invention;
fig. 3 is a partial cross-sectional view of the filter device of the present invention.
The names of the components corresponding to the corresponding reference numerals in the drawings are:
1. an adapter; 11. a connecting cover; 12. a seal ring; 13. connecting sleeves; 14. a threaded segment; 15. an extension section; 16. an annular step; 17. a filter disc; 18. an air exhaust hole; 2. an extraction bottle; 21. a liquid injection hole; 22. a nut; 3. a concentration bottle; 4. a connecting pipe; 5. and an air extracting device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, i.e., the described embodiments are merely illustrative of some, but not all, of the embodiments of the invention. The components of embodiments of the present invention, as 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 invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that, in the detailed description of the present invention, terms such as "first" and "second" may be used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, 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, method, article, or apparatus. Without further limitation, the possible occurrence of the phrases "comprising a limited element of '8230', \8230;" 8230; "etc. does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
The present invention will be described in further detail with reference to examples.
The utility model discloses well filter equipment's embodiment 1:
as shown in fig. 1, the filtering apparatus provided in this embodiment includes an extraction flask 2, a concentration flask 3, and an adapter filtering structure, after the extraction liquid in the extraction flask 2 is dehydrated, the extraction flask 2 is communicated with the concentration flask 3 through the adapter filtering structure, and the extraction liquid in the extraction flask 2 is filtered into the concentration flask 3 by using the adapter filtering structure.
In this embodiment, as shown in fig. 2 and fig. 3, in order to conveniently filter the extraction liquid in the extraction bottle 2, the switching filter structure includes an adapter 1, the adapter 1 is provided with a first connection structure for being connected to the bottle mouth of the concentration bottle 3 in a sealing manner and a second connection structure for being connected to the bottle mouth of the extraction bottle 2 in a sealing manner, the first connection structure and the second connection structure are arranged opposite to each other and are communicated with each other, and a filter element is arranged at a communication channel between the first connection structure and the second connection structure.
In this embodiment, in order to facilitate the detachment and installation of the concentrated bottle 3, as shown in fig. 2 and fig. 3, the first connecting structure includes a connecting cover 11, a bottle mouth of the concentrated bottle 3 is an open structure, and the connecting cover 11 is used for being buckled at the bottle mouth of the concentrated bottle 3. In order to ensure a sealing engagement of the connection cap 11 with the concentrate bottle 3, a sealing ring 12 is arranged inside the connection cap 11, as shown in fig. 2 and 3.
In this embodiment, as shown in fig. 2 and 3, the adapting filtering structure further includes a connecting sleeve 13, the connecting sleeve 13 has a threaded section 14, the threaded section 14 forms a first connecting structure, an inner thread is disposed on an inner wall surface of the threaded section 14, an outer thread is disposed at a bottle mouth at the bottom of the extraction bottle 2, and the threaded section 14 and the extraction bottle 2 are hermetically connected through a thread.
In this embodiment, in order to reduce the height of the filtering apparatus, as shown in fig. 3, the connecting sleeve 13 further has an extending section 15, the extending section 15 forms a communication channel between the first and second connecting structures, and the extending section 15 extends away from the threaded section 14 and extends into the connecting cover 11. Likewise, to reduce the height dimension of the filter device, as shown in fig. 3, the end of the threaded section 14 facing away from the connecting sleeve 13 is flush with the end face of the connecting cap 11.
In this embodiment, in order to facilitate the disassembly and assembly of the filter member, as shown in fig. 3, the filter member is a filter sheet 17, the extending section 15 is provided with an annular step 16, and the filter sheet 17 is placed on the annular step 16.
In this embodiment, in order to improve the filtering efficiency, as shown in fig. 1 and fig. 3, the adaptor 1 is provided with the air exhaust hole 18, the air exhaust hole 18 communicates with the connection cover 11, when filtering, the air exhaust hole 18 is connected with the air exhaust device 5 through the connection pipe 4, and the air exhaust device 5 can extract the gas in the concentration bottle 3 through the air exhaust hole 18, so as to reduce the air pressure in the concentration bottle 3, thereby increasing the filtering speed.
In this embodiment, in order to facilitate the elution of the extraction flask 2, as shown in fig. 1 and 2, a liquid injection hole 21 is provided in the extraction flask 2, and an elution liquid can be added to the extraction flask 2 through the liquid injection hole 21. The external thread of the pour hole 21 is fitted with a nut 22, the nut 22 is made of polytetrafluoroethylene, and the nut 22 is used for blocking the pour hole 21 when the pour hole 21 is not in use.
In this embodiment, the connecting sleeve 13 and the connecting cover 11 are integrally formed for convenient processing. In addition, to ensure a good filtering effect, as shown in fig. 1, the central axes of the extraction flask 2, the connecting cap 11 and the concentration flask 3 are coincident.
In this embodiment, the concentration bottle 3 is a container for concentrating the solution on the concentration instrument, and the concentration bottle 3 is a prior art and will not be described herein.
In this embodiment, the process of using the filter device is as follows: after extraction is finished, extract liquor in the extraction bottle 2 is dehydrated, if dehydration is not needed, the step can be omitted, the extraction bottle 2 is firstly taken down from an external extraction instrument, meanwhile, a filter 17 is placed on an annular step 16, then, the bottom opening of the extraction bottle 2 is screwed into the threaded section 14, the connecting cover 11 is buckled on the concentration bottle 3, then, the posture of the whole filtering device is adjusted, the extraction bottle 2 is positioned above the concentration bottle 3, the concentration bottle 3 is placed on the concentration instrument, then, the air suction hole 18 is connected with the air suction device 5, the air suction device 5 is a vacuum pump, the vacuum pump vacuumizes the interior of the concentration bottle 3, the extract liquor in the extraction bottle 2 flows into the concentration bottle 3 under the filtering of the filter 17, after the filtering is finished, a screw cap 22 on the liquid injection hole 21 is taken down, the interior of the extraction bottle 2 is leached for multiple times through a syringe filled with the leacheate, at the moment, the vacuum pump continuously works, the leacheate flows into the concentration bottle 3 through the filter 17, then, the connecting cover 11 and the extraction bottle 2 are taken down, and the next step of concentration can be carried out.
Because the filter equipment that this embodiment provided is when filtering, concentrated bottle 3 and extraction flask 2 are through first, the second connection structure is connected for a whole, make filter equipment can place and filter at the assigned position, compare in the handheld glass psammitolite funnel and carry out filterable mode, the filter equipment convenient operation that this embodiment provided, in addition, the bottleneck sealing connection of first connection structure and concentrated bottle 3, the bottleneck sealing connection of second connection structure and extraction flask 2, can avoid the extraction liquid to volatilize in filtering process, the loss of experimental sample has been reduced.
The utility model discloses well filter equipment's embodiment 2:
the present example is different from example 1 in that the extraction flask of example 1 is provided with a liquid injection hole. In this embodiment, the extraction flask is not provided with the liquid injection hole, and when the extraction flask needs to be rinsed, the extraction flask needs to be taken down and the rinsing liquid needs to be added into the extraction flask through the opening of the extraction flask.
The utility model discloses well filter equipment's embodiment 3:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the connection sleeve and the connection cover are integrally formed. In the embodiment, the connecting sleeve and the connecting cover are assembled through threads, the connecting cover is provided with a thread assembling hole, and the outer wall surface of the connecting sleeve is provided with an external thread matched with the thread assembling hole.
The utility model discloses well filter equipment's embodiment 4:
the present embodiment is different from embodiment 1 in that, in embodiment 1, an air exhaust hole is provided on the adaptor. In this embodiment, the adaptor is not provided with an air exhaust hole.
The utility model discloses well filter equipment's embodiment 5:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the filter member is a filter sheet, and the communication passage is provided with an annular step. In the embodiment, the filter element is a filter element which is clamped in the communication channel.
The utility model discloses well filter equipment's embodiment 6:
this embodiment differs from embodiment 1 in that in embodiment 1, the end of the threaded segment facing away from the run-in segment is flush with the end face of the connection cap. In this embodiment, one end of the threaded section opposite to the extending section protrudes out of the end face of the connecting cover.
The utility model discloses well filter equipment's embodiment 7:
this embodiment is different from embodiment 1 in that, in embodiment 1, the protruding section protrudes into the internal arrangement of the connection cover. In the embodiment, the extending section only penetrates through the end face of the connecting cover so as to ensure that the threaded section is communicated with the connecting cover.
The utility model discloses well filter equipment's embodiment 8:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the connection sleeve has an extending section which extends into the inside of the connection cover and is arranged to form a communication passage. In this embodiment, the connecting sleeve does not have an extending section, the adapter comprises a communicating pipe, and the communicating pipe forms a communicating channel.
The utility model discloses well filter equipment's embodiment 9:
the difference between the present embodiment and embodiment 1 is that, in embodiment 1, the adaptor includes a connection sleeve, and the connection sleeve has a threaded section, and the threaded section forms a second connection structure. In this embodiment, the adaptor does not include the adapter sleeve, and the adaptor includes the connecting plate, and the connecting plate forms second connection structure, is equipped with the buckle that is used for being connected with the bottleneck of extraction bottle and is used for sealing the sealed pad of complex with the bottleneck of extraction bottle on the connecting plate.
The utility model discloses well filter equipment's embodiment 10:
the difference between this embodiment and embodiment 1 is that, in embodiment 1, the adaptor includes a connection sleeve, and the connection sleeve has a threaded section, and the threaded section forms a second connection structure. In this embodiment, the adaptor does not include the adapter sleeve, and the adaptor includes the installation lid, and the installation lid forms second connection structure, and the installation lid is used for the spiral-lock to be in the bottleneck department of extraction bottle, is equipped with in the installation lid to be used for with the sealed complex sealing washer of the bottleneck department of extraction bottle.
The utility model discloses well filter equipment's embodiment 11:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the first connection structure includes a connection cover. In this embodiment, the first connecting structure does not include the connecting cover, and the first connecting structure includes the mounting panel, and the mounting panel is equipped with the buckle that is used for being connected with the bottleneck of extraction bottle and is used for sealing the sealed pad of cooperation with the bottleneck of concentration bottle.
The utility model discloses well filter equipment's embodiment 12:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the first connection structure includes a connection cover. In this embodiment, the first connecting structure does not include the connecting cover, the first connecting structure includes the mounting sleeve, and the inner wall surface of the mounting sleeve is provided with an internal thread for being connected with the bottle mouth of the concentrated bottle in a sealing manner.
The utility model discloses well switching filtration's embodiment:
the specific structure of the adapting filtering structure provided in this embodiment is the same as the specific structure of the adapting filtering structure in embodiment 1 of the filtering apparatus, and is not described herein again.
In other embodiments of the adapting filtering structure, the specific structure of the adapting filtering structure may also be the adapting filtering structure in any other embodiment of the filtering apparatus, which is not described herein again.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A switching filter structure is characterized by comprising a switching piece (1), wherein the switching piece (1) is provided with a first connecting structure used for being in sealing connection with a bottle opening of a concentration bottle (3) and a second connecting structure used for being in sealing connection with a bottle opening of an extraction bottle (2), the first connecting structure and the second connecting structure are arranged in a back-to-back mode and are communicated with each other, and a filter piece is arranged at a communication channel between the first connecting structure and the second connecting structure;
the first connecting structure comprises a connecting cover (11) which is buckled at the bottle mouth of the concentration bottle (3), and a sealing ring (12) which is used for being matched with the bottle mouth of the concentration bottle (3) in a sealing way is arranged in the connecting cover (11);
the adaptor (1) comprises a connecting sleeve (13), a threaded section (14) is arranged on the connecting sleeve (13), an internal thread for being in sealing connection with the bottle opening of the extraction bottle (2) is arranged on the inner wall surface of the threaded section (14), and the threaded section (14) forms the second connecting structure.
2. A transition filter construction according to claim 1, characterised in that the adapter sleeve (13) is further provided with an extension section (15) extending away from the threaded section (14), the extension section (15) extending into the interior of the connection cap (11) for forming said communication channel.
3. A changeover filter construction according to claim 2, characterized in that the end of the threaded section (14) facing away from the run-in section (15) is flush with the end face of the connection cap (11).
4. A transition filter construction according to any of claims 1-3, characterised in that the filter element is a filter disc (17), and that the communication channel is provided with an annular step (16) for placing the filter disc (17).
5. A switched filter construction according to any one of claims 1-3, characterised in that the adapter (1) is provided with a suction opening (18) for connection to a suction device (5), the suction opening (18) being in communication with the first connection construction.
6. A switch over filter construction according to any one of claims 1-3, characterised in that the connection sleeve (13) is formed integrally with the connection cover (11).
7. A filter device, characterized by comprising an extraction flask (2) and a concentration flask (3), wherein the extraction flask (2) and the concentration flask (3) are connected through a transition filter structure, and the transition filter structure adopts the transition filter structure of any one of claims 1 to 6.
8. The filtration apparatus according to claim 7, wherein the extraction flask (2) is provided with a liquid injection hole (21) for adding the leacheate to the extraction flask (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222024533.6U CN218686737U (en) | 2022-08-02 | 2022-08-02 | Switching filtration and filter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222024533.6U CN218686737U (en) | 2022-08-02 | 2022-08-02 | Switching filtration and filter equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218686737U true CN218686737U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222024533.6U Active CN218686737U (en) | 2022-08-02 | 2022-08-02 | Switching filtration and filter equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218686737U (en) |
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2022
- 2022-08-02 CN CN202222024533.6U patent/CN218686737U/en active Active
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