Filter assembly and filter device comprising the same

Abstract

This utility model relates to the field of water purification technology, specifically providing a filter assembly and a filter device including the filter assembly, aiming to solve the problem of high production costs caused by the incompatibility of existing filter bottles with integrated and detachable filter bottles. The filter assembly of this application includes a filter bottle and a filter bottle cap, which are screwed together. The filter bottle cap and filter bottle are respectively provided with a first insertion hole and a second insertion hole. An anti-loosening member is configured to be able to be inserted into and removed from the first and second insertion holes when in a first installation mode; the anti-loosening member is configured to be able to be inserted into and removed from the first and second insertion holes when in a second installation mode, and prevents the filter bottle cap from rotating relative to the filter bottle when inserted into the first and second insertion holes. This application allows integrated and detachable filter bottles to share a single mold, reducing the number of molds required, improving production efficiency, and lowering production costs.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, specifically providing a filter component and a filter device including the filter component. Background Technology

[0002] Considering pressure resistance and anti-loosening issues, filter bottles on the market are generally divided into two types. One is the spin-fused filter bottle, which is discarded as a whole when the filter element is replaced, but this type of filter bottle is more expensive. The other is the threaded connection filter bottle, where the filter bottle cap can be opened for easy replacement of the inner element. However, the filter bottle cap needs to be opened with a special wrench or special tool, which requires providing users with special tools. On the one hand, this leads to higher costs, and on the other hand, the special tools are easy to lose, making it difficult to open the filter bottle cap. Utility Model Content

[0003] The present invention aims to solve the above-mentioned technical problems to at least a certain extent, that is, to at least a certain extent solve the problem that the existing filter bottles require special tools to open the filter bottle cap, resulting in a poor user experience.

[0004] In a first aspect, the present invention provides a filter assembly comprising a filter bottle and a filter bottle cap. The filter bottle has an installation cavity for installing a filter element, and an opening communicating with the installation cavity is provided at the end of the filter bottle. The filter bottle cap is adapted to the opening and is screwed to the filter bottle. The filter assembly further includes an anti-loosening member. The filter bottle cap has a first insertion hole adapted to the anti-loosening member, and the filter bottle has a second insertion hole adapted to the anti-loosening member. The anti-loosening member is configured to be able to be inserted into the first insertion hole and the second insertion hole sequentially and to be removed from the first insertion hole and the second insertion hole in a first installation mode. The anti-loosening member is configured to be able to be inserted into the first insertion hole and the second insertion hole sequentially and to prevent it from being removed from the first insertion hole and the second insertion hole in a second installation mode. When the anti-loosening member is inserted into the first insertion hole and the second insertion hole sequentially, it can prevent the filter bottle cap from rotating relative to the filter bottle.

[0005] In the preferred embodiment of the above-mentioned filter assembly, the anti-loosening component includes a first pin and a second pin. Both the first pin and the second pin can be sequentially inserted into the first socket and the second socket, thereby preventing the filter bottle cap from rotating relative to the filter bottle. When the first pin is sequentially inserted into the first socket and the second socket, at least a portion of the first pin protrudes outside the filter bottle cap, so that the first pin can be pulled out to facilitate the removal of the filter bottle cap from the filter bottle. When the second pin is sequentially inserted into the first socket and the second socket, the second pin is completely located within the first socket and the second socket, thereby preventing the second pin from being pulled out of the first socket and the second socket.

[0006] In the preferred embodiment of the above-mentioned filter assembly, there are two sets of the first and second sockets, wherein: the first pin includes a first insertion part, a connecting part, and a second insertion part connected together, the first insertion part and the second insertion part are respectively inserted into the two sets of the first and second sockets, and when installed, the connecting part protrudes outside the filter bottle cap, and the second pin includes two mutually separated insert rods, the two insert rods are respectively inserted into the two sets of the first and second sockets.

[0007] In the preferred embodiment of the above-mentioned filter assembly, the anti-loosening member has a first insertion end and a second insertion end. The end of the second insertion hole furthest from the first insertion hole has a stepped surface, wherein: the stepped surface extends towards the first insertion hole; the size of the first insertion end is larger than the size of the second insertion end; when the first insertion end is sequentially inserted into the first insertion hole and the second insertion hole, the first insertion end abuts against the stepped surface, so that the second insertion end protrudes outside the filter bottle cap; when the second insertion end is sequentially inserted into the first insertion hole and the second insertion hole, the first insertion end abuts against the stepped surface, so that the second insertion end protrudes outside the filter bottle cap; when the second insertion end is sequentially inserted into the first insertion hole and the second insertion hole, the first insertion end... The two insertion ends are located inside the stepped surface, so that the anti-loosening components are all located inside the first insertion hole and the second insertion hole; or, the stepped surface extends away from the first insertion hole, and when the first insertion end is inserted into the first insertion hole and the second insertion hole in sequence, the first insertion end is located inside the stepped surface, so that the anti-loosening components are all located inside the first insertion hole and the second insertion hole; when the second insertion end is inserted into the first insertion hole and the second insertion hole in sequence, the second insertion end abuts against the bottom of the second insertion hole, so that the second insertion end protrudes outside the filter bottle cap.

[0008] In the preferred embodiment of the above-mentioned filter assembly, the stepped surface extends toward the direction close to the first insertion hole, wherein: the anti-loosening member is a U-shaped pin, the open end of the U-shaped pin is the first insertion end, the closed end of the U-shaped pin is the second insertion end, and the width of the U-shaped pin increases sequentially from its closed end to its open end; or, the anti-loosening member includes a connected U-shaped insertion part and a support part, the open end of the U-shaped insertion part is the first insertion end, the closed end of the U-shaped insertion part is the second insertion end, and the support part is disposed at the open end of the U-shaped insertion part and located outside the U-shaped insertion part; or, the stepped surface extends toward the direction away from the first insertion hole, wherein: the anti-loosening member is a U-shaped pin, the open end of the U-shaped pin is the first insertion end, and the closed end of the U-shaped pin is the second insertion end.

[0009] In the preferred embodiment of the above-mentioned filtration assembly, the filtration assembly further includes a filter element, which is installed in the mounting cavity. The filter element is one of a pre-filter, a reverse osmosis membrane filter, or an ultrafiltration filter.

[0010] In the preferred embodiment of the above-mentioned filter assembly, the filter assembly further includes an end-pressing member, which is disposed at the end of the filter element and can be sealed to the filter element.

[0011] In the preferred embodiment of the above-mentioned filter assembly, a rinsing channel is further provided at the bottom of the filter bottle, and the filter assembly further includes a rinsing connector, one end of which is located inside the rinsing channel and is sealed to the rinsing channel.

[0012] In the preferred embodiment of the above-mentioned filter assembly, the filter bottle cap is provided with a first disassembly structure, and the filter bottle is provided with a second disassembly structure, so that the user can use the first disassembly structure and / or the second disassembly structure to rotate the filter bottle cap relative to the filter bottle, thereby installing the filter bottle cap onto the filter bottle or removing the filter bottle cap from the filter bottle.

[0013] In a second aspect, the present invention also provides a filtration device, which includes any of the filtration components described in the first aspect.

[0014] When the above-mentioned preferred technical solution is adopted, when the anti-loosening component is in the first installation mode, it can be inserted into the first and second insertion holes in sequence, thereby preventing the filter bottle and filter bottle cover from rotating relative to each other, avoiding water leakage due to loosening during use of the filter bottle assembly. Furthermore, the anti-loosening component can be removed from the first and second insertion holes, enabling the filter bottle and filter bottle cover to be detachable for easy filter element replacement. When the anti-loosening component is in the second installation mode, it can be inserted into the first and second insertion holes in sequence, preventing the filter bottle and filter bottle cover from rotating relative to each other, avoiding water leakage due to loosening during use of the filter bottle assembly. Moreover, the anti-loosening component cannot be removed from the first and second insertion holes, thus preventing the filter bottle and filter bottle cover from being disassembled. By switching the installation mode of the anti-loosening component, it is possible to be compatible with both integrated and detachable filter bottles, allowing both integrated and detachable filter bottles to share a single mold, reducing the number of molds required, improving production efficiency, and lowering the production cost of the filter assembly.

[0015] Furthermore, compared to setting the anti-loosening component in the form of including a first pin and a second pin, setting the anti-loosening component in the form of having a first insertion end and a second insertion end, with the size of the first insertion end being larger than the size of the second insertion end, and the end of the second insertion hole away from the first insertion hole having a stepped surface, can accommodate both detachable filter bottles and integrated filter bottles without setting two types of insertion parts, simply by switching the insertion direction of the anti-loosening component, further reducing the number of molds required and saving the production cost of filter bottle assemblies.

[0016] Furthermore, by setting end-pressure components, when the end of the filter element is not sealed with an end cap, the filter element can be sealed by the end-pressure components, making the filter assembly suitable for different types of filter elements and expanding the application range of the filter assembly.

[0017] Furthermore, by setting up a flushing connector, on the one hand, it can serve as a flushing interface for the filter assembly, facilitating the flushing of the filter element and extending its service life; on the other hand, when a reverse osmosis membrane filter element is installed inside the filter bottle assembly, the flushing connector can also serve as a wastewater outlet for the filter assembly, thereby enabling the filter assembly to be used with different types of filter elements and expanding the application range of the filter assembly.

[0018] Furthermore, by setting a first disassembly structure on the filter bottle cap and a second disassembly structure on the filter bottle, users can use the first or second disassembly structure to rotate the filter bottle cap relative to the filter bottle, thereby installing the filter bottle cap onto or removing it from the filter bottle without the need for special disassembly tools, reducing the cost of using the filtration components and improving the user experience.

[0019] Furthermore, the filtration device provided by this utility model, based on the above-described technical solution, possesses the beneficial effects of the aforementioned filtration components due to including them. Compared to the filtration device before the improvement, the filtration device of this utility model has lower production costs, higher production efficiency, and is less prone to loosening and leakage, resulting in a better user experience. Attached Figure Description

[0020] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a three-dimensional structural diagram of the filter component of this utility model. Figure 1 The diagram shows the positional relationship of each component when it is installed.

[0022] Figure 2 This is a top view of a first embodiment of the filter assembly of this utility model;

[0023] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0024] Figure 4 yes Figure 3 Enlarged view of part B in the middle Figure 1 The diagram shows a structural schematic of an anti-loosening member of one embodiment being inserted into a first socket and a second socket in a first installation manner;

[0025] Figure 5 yes Figure 3 Enlarged view of part B in the middle Figure 2 The diagram shows a schematic of one embodiment of the anti-loosening component being inserted into the first and second sockets in a second installation manner.

[0026] Figure 6 This is a top view of a second embodiment of the filter assembly of this utility model, showing the structure after the anti-loosening component is hidden.

[0027] Figure 7 yes Figure 6 Cross-sectional view along the CC line;

[0028] Figure 8 yes Figure 7 Enlarged view of part D in the middle Figure 1 The diagram shows a structural schematic of another embodiment in which the anti-loosening member is inserted into the first and second sockets in a first installation manner;

[0029] Figure 9 yes Figure 7 Enlarged view of part D in the middle Figure 2 The diagram shows a structural schematic of another embodiment in which the anti-loosening member is inserted into the first and second sockets in a second installation manner;

[0030] Figure 10 yes Figure 7 Enlarged view of part D in the middle Figure 3 The diagram shows a structural schematic of an anti-loosening member being inserted into a first socket and a second socket in a first installation manner according to another embodiment.

[0031] Figure 11 yes Figure 7 Enlarged view of part D in the middle Figure 4 The diagram shows a structural schematic of an anti-loosening member inserted into a first socket and a second socket in a second installation manner according to another embodiment.

[0032] Figure 12 This is an exploded view of the filter assembly of this utility model;

[0033] Figure 13 yes Figure 12 A magnified view of a portion of point E in the middle;

[0034] Figure 14 This is a structural schematic diagram of the filter bottle, rinsing connector, and clamping component of this utility model;

[0035] Figure 15 yes Figure 14 A magnified view of a portion of point F in the middle.

[0036] List of reference numerals in the attached diagram:

[0037] 1. Filter bottle cap; 11. Raised structure; 111. Clamping surface; 12. First disassembly hole; 13. First insertion hole; 14. Water outlet; 2. Filter bottle; 20. Mounting cavity; 201. Opening; 21. Holding part; 211. First partition; 212. Second partition; 22. Second disassembly hole; 23. Second insertion hole; 231. Stepped surface; 24. Flushing channel; 25. Groove; 3. Filter element; 31. End clamp; 4. Flushing connector; 5. Anti-loosening component; 51. First pin; 511. First insertion part; 512. Connecting part; 513. Second insertion part; 52. Second pin; 531. First insertion end; 532. Second insertion end; 533. U-shaped insertion part; 534. Support part; 6. Clamping component. Detailed Implementation

[0038] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0039] It should be noted that in the description of this utility model, terms such as "upper," "lower," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In view of the problem mentioned in the background art that the existing filter bottles have high production costs due to their incompatibility with integrated filter bottles and detachable filter bottles, this utility model provides a filter assembly.

[0042] Specifically, such as Figures 1 to 13 As shown, the filter assembly of this utility model includes a filter bottle 2 and a filter bottle cover 1. The filter bottle 2 has an installation cavity 20 for installing a filter element 3. The end of the filter bottle 2 is provided with an opening 201 that communicates with the installation cavity 20. The filter bottle cover 1 is adapted to the opening 201 and is screwed to the filter bottle 2.

[0043] The filter assembly also includes an anti-loosening component 5. The filter bottle cap 1 is provided with a first insertion hole 13 adapted to the anti-loosening component 5, and the filter bottle 2 is provided with a second insertion hole 23 adapted to the anti-loosening component 5. The anti-loosening component 5 is configured to be able to be inserted into the first insertion hole 13 and the second insertion hole 23 in sequence and to be able to be removed from the first insertion hole 13 and the second insertion hole 23 in sequence when it is in the first installation mode; the anti-loosening component 5 is configured to be able to be inserted into the first insertion hole 13 and the second insertion hole 23 in sequence and to prevent it from being removed from the first insertion hole 13 and the second insertion hole 23 in the second installation mode.

[0044] When the anti-loosening component 5 is inserted into the first socket 13 and the second socket 23 in sequence, it can prevent the filter bottle cap 1 from rotating relative to the filter bottle 2.

[0045] With this configuration, when the anti-loosening component 5 is in the first installation mode, it can be inserted into the first insertion hole 13 and the second insertion hole 23 in sequence, thereby preventing the filter bottle 2 and filter bottle cover 1 from rotating relative to each other. This prevents water leakage caused by loosening of the filter bottle 2 assembly during use. Furthermore, the anti-loosening component 5 can be removed from the first insertion hole 13 and the second insertion hole 23, making the filter bottle 2 and filter bottle cover 1 detachable and facilitating the replacement of the filter element 3. When the anti-loosening component 5 is in the second installation mode, it can be inserted into the first insertion hole 13 and the second insertion hole 23 in sequence, preventing the filter bottle 2 and filter bottle cover 1 from rotating relative to each other. This prevents water leakage caused by loosening of the filter bottle 2 assembly during use. Furthermore, the anti-loosening component 5 cannot be removed from the first insertion hole 13 and the second insertion hole 23, thus making the filter bottle 2 and filter bottle cover 1 detachable. By switching the installation mode of the anti-loosening component 5, it is possible to be compatible with both the integrated filter bottle 2 and the detachable filter bottle 2, allowing both the integrated filter bottle 2 and the detachable filter bottle 2 to share a single mold, reducing the number of molds required, improving production efficiency, and reducing the production cost of the filter assembly.

[0046] It should be noted that, in practical applications, this utility model does not limit the specific connection method of the filter bottle cap 1 and the filter bottle 2 by screwing. For example, the filter bottle cap 1 and the filter bottle 2 can be set to a threaded connection, or the filter bottle cap 1 and the filter bottle 2 can be set to a snap-fit ​​screw connection. For example, during the rotation of the filter bottle cap 1 relative to the filter bottle 2, the snap-fit ​​is engaged into the slot to achieve a sealed connection. Alternatively, the filter bottle cap 1 and the filter bottle 2 can be set to achieve a sealed connection through any other possible screwing method, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this invention and should all be included within the protection scope of this invention.

[0047] Preferably, the filter bottle cap 1 and the filter bottle 2 are connected by threads to make the filter bottle cap 1 and the filter bottle 2 sealed together.

[0048] It should be noted that, in practical applications, those skilled in the art do not impose any restrictions on the specific type of the anti-loosening component 5, as long as the filter bottle 2 can be made detachable or non-detachable by switching the installation method of the anti-loosening component 5.

[0049] The specific structure of the anti-loosening component 5 will be described below with reference to the following two embodiments.

[0050] Example 1:

[0051] like Figures 2 to 5 , Figures 12 to 13As shown, the anti-loosening component 5 includes a first pin 51 and a second pin 52. Both the first pin 51 and the second pin 52 can be inserted into the first socket 13 and the second socket 23 in sequence, thereby preventing the filter bottle cap 1 from rotating relative to the filter bottle 2. When the first pin 51 is inserted into the first socket 13 and the second socket 23 in sequence, at least a portion of the first pin 51 protrudes from the outside of the filter bottle cap 1, so that the first pin 51 can be pulled out and the filter bottle cap 1 can be removed from the filter bottle 2. When the second pin 52 is inserted into the first socket 13 and the second socket 23 in sequence, the second pin 52 is completely located in the first socket 13 and the second socket 23, thereby preventing the second pin 52 from being pulled out of the first socket 13 and the second socket 23.

[0052] When it is necessary to produce a detachable filter bottle 2, the first pin 51 is inserted into the first socket 13 and the second socket 23 respectively. The first pin 51 can prevent the filter bottle cover 1 from rotating relative to the filter bottle 2. The first pin 51 is removed from the first socket 13 and the second socket 23, and the filter bottle cover 1 can be removed from the filter bottle 2, thus realizing the detachability of the filter bottle 2 assembly.

[0053] When it is necessary to produce an integrated filter bottle 2, the second pin 52 is inserted into the first insertion hole 13 and the second insertion hole 23 respectively. The second pin 52 can prevent the filter bottle cover 1 from rotating relative to the filter bottle 2. Since the second pin 52 is completely located in the first insertion hole 13 and the second insertion hole 23, the second pin 52 cannot be pulled out, which improves the connection stability between the filter bottle 2 and the filter bottle cover 1. At this time, the filter bottle 2 assembly is an integrated filter bottle 2.

[0054] It should be noted that, in practical applications, this utility model does not impose any restrictions on the specific configuration of the first pin 51 and the second pin 52, as long as the first pin 51 can be pulled out from the first socket 13 and the second socket 23, and the second pin 52 is prevented from being pulled out from the first socket 13 and the second socket 23.

[0055] In one specific embodiment, such as Figure 4 As shown, the first pin 51 is configured to include a first insertion part 511, a connecting part 512, and a second insertion part 513 connected together. There are two sets of first insertion holes 13 and second insertion holes 23. The first insertion part 511 and the second insertion part 513 are respectively inserted into the two sets of first insertion holes 13 and second insertion holes 23. When installed, the connecting part 512 protrudes outside the filter bottle cover 1. Correspondingly, the second pin 52 includes two mutually separated insertion rods, which are respectively inserted into the two sets of first insertion holes 13 and second insertion holes 23.

[0056] For example, such as Figures 2 to 5 , Figures 12 to 13 As shown, the first pin 51 is a U-shaped pin, and the second pin 52 is a straight pin.

[0057] Of course, it is not limited to configuring the first pin 51 to include a connecting part 512, a first insertion part 511, and a second insertion part 513. For example, the first pin 51 can also include more insertion parts, with adjacent insertion parts connected by the connecting part 512. When installed, the insertion parts are respectively inserted into the first socket 13 and the second socket 23, and the connecting part 512 protrudes from the outside of the filter bottle cap 1, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model. Preferably, the first pin 51 is configured to include a connecting part 512, a first insertion part 511, and a second insertion part 513.

[0058] In another specific embodiment, the first pin 51 includes a plug-in portion and a limiting portion (not shown in the figure). The plug-in portion can be inserted into the first socket 13 and the second socket 23 in sequence. When installed, the limiting portion protrudes outside the filter bottle cover 1. Correspondingly, the second pin 52 includes a plug rod, which is inserted into the first socket 13 and the second socket 23 in sequence.

[0059] For example, the first pin 51 is an L-shaped pin, and the second pin 52 is a straight pin.

[0060] Example 2:

[0061] like Figures 6 to 11 As shown, the anti-loosening component 5 has a first insertion end 531 and a second insertion end 532 connected together, and the second insertion hole 23 has a stepped surface 231 at the end away from the first insertion hole 13.

[0062] The following section will introduce two scenarios of stepped surfaces.

[0063] Scenario 1:

[0064] like Figures 6 to 11 As shown, the stepped surface 231 extends toward the direction close to the first insertion hole 13. The size of the first insertion end 531 is larger than the size of the second insertion end 532. When the first insertion end 531 is inserted into the first insertion hole 13 and the second insertion hole 23 in sequence, the first insertion end 531 abuts against the stepped surface 231 so that the second insertion end 532 protrudes outside the filter bottle cap 1. When the second insertion end 532 is inserted into the first insertion hole and the second insertion hole in sequence, the second insertion end 532 is located inside the stepped surface 231 so that the anti-loosening member 5 is entirely located inside the first insertion hole 13 and the second insertion hole 23.

[0065] With this configuration, compared to setting the anti-loosening component 5 to include a first pin 51 and a second pin 52, setting the anti-loosening component 5 to have a first insertion end 531 and a second insertion end 532, with the size of the first insertion end 531 being larger than the size of the second insertion end 532, and the second insertion hole 23 having a stepped surface 231 at the end away from the first insertion hole 13, it is possible to accommodate both the detachable filter bottle 2 and the integrated filter bottle 2 simply by switching the insertion direction of the anti-loosening component 5, without having to set two types of insertion parts. This further reduces the number of molds required and saves on the production cost of the filter bottle 2 assembly.

[0066] It should be noted that this utility model does not limit the specific type of the anti-loosening component 5. As long as it has a first insertion end 531 and a second insertion end 532, the size of the first insertion end 531 is larger than the size of the second insertion end 532, and the end of the second insertion hole 23 away from the first insertion hole 13 is provided with a stepped surface 231.

[0067] In one specific embodiment, such as Figure 10 and Figure 11 As shown, the anti-loosening component 5 is a U-shaped pin. The open end of the U-shaped pin is the first insertion end 531, and the closed end of the U-shaped pin is the second insertion end 532. The width of the U-shaped pin increases sequentially from its closed end to its open end.

[0068] With this configuration, when the first insertion end 531 (open end) is sequentially inserted into the first insertion hole 13 and the second insertion hole 23, the first insertion end 531 (open end) of the U-shaped pin abuts against the stepped surface 231, so that the second insertion end 532 (closed end) protrudes from the outside of the filter bottle cap 1, making it easy to remove the anti-loosening component 5; when the second insertion end 532 (closed end) is sequentially inserted into the first insertion hole 13 and the second insertion hole 23, the second insertion end 532 (closed end) of the U-shaped pin is located on the inside of the stepped surface 231, so that the anti-loosening component 5 is completely located in the first insertion hole 13 and the second insertion hole 23, preventing the anti-loosening component 5 from being removed.

[0069] In another specific embodiment, such as Figure 8 and Figure 9 As shown, the anti-loosening component 5 includes a connected U-shaped plug portion 533 and a support portion 534. The open end of the U-shaped plug portion 533 is the first plug end 531, and the closed end of the U-shaped plug portion 533 is the second plug end 532. The support portion 534 is disposed at the open end of the U-shaped plug portion 533 and is located outside the U-shaped plug portion 533.

[0070] With this configuration, when the first insertion end 531 (open end) is sequentially inserted into the first insertion hole 13 and the second insertion hole 23, the support part 534 abuts against the stepped surface 231, so that the second insertion end 532 (closed end) protrudes from the outside of the filter bottle cap 1, making it easy to remove the anti-loosening component 5; when the second insertion end 532 (closed end) is sequentially inserted into the first insertion hole 13 and the second insertion hole 23, the second insertion end 532 (closed end) is located on the inside of the stepped surface 231, so that the anti-loosening component 5 is completely located in the first insertion hole 13 and the second insertion hole 23, preventing the anti-loosening component 5 from being removed.

[0071] Scenario 2:

[0072] The stepped surface 231 extends away from the first insertion hole 13. When the first insertion end 531 is inserted into the first insertion hole 13 and the second insertion hole 23 in sequence, the first insertion end 531 is located inside the stepped surface 231 so that the anti-loosening member 5 is completely located inside the first insertion hole 13 and the second insertion hole 23. When the second insertion end 532 is inserted into the first insertion hole and the second insertion hole in sequence, the second insertion end 532 abuts against the bottom of the second insertion hole 23 so that the first insertion end 531 protrudes outside the filter bottle cap 1.

[0073] Specifically, the anti-loosening component 5 is a U-shaped pin (not shown in the figure). The open end of the U-shaped pin is the first insertion end 531, and the closed end of the U-shaped pin is the second insertion end 532. When the first insertion end 531 is inserted into the first insertion hole 13 and the second insertion hole 23 in sequence, the open end of the U-shaped pin is inserted into the stepped surface, so that the anti-loosening component 5 is completely located in the first insertion hole 13 and the second insertion hole 23. When the second insertion end 532 is inserted into the first insertion hole 13 and the second insertion hole 23 in sequence, the closed end of the U-shaped pin abuts against the bottom of the second insertion hole 23, so that the open end of the U-shaped pin protrudes from the outside of the filter bottle cap 1.

[0074] It should be noted that although the anti-loosening component 5 of this utility model is introduced through the above two embodiments, this is not restrictive. Any other possible structure of the anti-loosening component 5 does not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0075] Preferably, such as Figure 12 As shown, the filter assembly of this utility model also includes a filter element 3, which is installed in the mounting cavity 20. The filter element 3 is at least one of a pre-filter, a reverse osmosis membrane filter, or an ultrafiltration filter.

[0076] It should be noted that, in practical applications, those skilled in the art can set filter element 3 as a pre-filter, or filter element 3 as a reverse osmosis membrane filter, or filter element 3 as an ultrafiltration filter, etc. Such adjustments and changes to the specific setting type of filter element 3 do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0077] For example, filter element 3 is a pre-filter.

[0078] It should be noted that, in practical applications, this utility model does not impose any limitations on the structural type of the filter element 3 installed in the mounting cavity 20. For example, a filter element 3 with a sealing end cap can be directly installed in the mounting cavity 20, or a filter element 3 without a sealing end cap can be installed in the mounting cavity 20. In this case, the filter element 3 is sealed by setting the end pressure member 31, etc. Such adjustments and changes to the structural type of the filter element 3 installed in the mounting cavity 20 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0079] Preferably, such as Figure 12 As shown, the filter assembly also includes an end pressure member 31, which is disposed at the end of the filter element 3 and can be sealed to the filter element 3.

[0080] With this configuration, when the end of the filter element 3 is not sealed with an end cap, the filter element 3 can be sealed by the end pressure member 31, making the filter assembly suitable for different types of filter elements 3 and expanding the application range of the filter assembly.

[0081] Preferably, such as Figure 12 , Figures 14 to 15 As shown, the bottom of the filter bottle 2 is also provided with a rinsing channel 24, and the filter assembly also includes a rinsing connector 4, one end of which is located inside the rinsing channel 24 and is sealed to the rinsing channel 24.

[0082] By setting up the flushing connector 4, on the one hand, it can serve as a flushing interface for the filter assembly, making it convenient to flush the filter element 3 and extend the service life of the filter element 3; on the other hand, when a reverse osmosis membrane filter element is installed in the filter bottle 2 assembly, the flushing connector 4 can also serve as a wastewater outlet for the filter assembly, thereby enabling the filter assembly to be used with different types of filter elements 3 and expanding the application range of the filter assembly.

[0083] It should be noted that this utility model does not limit the specific connection method between the flushing connector 4 and the flushing channel 24. For example, the flushing connector 4 and the flushing channel 24 can be set to a threaded connection, or the flushing connector 4 and the flushing channel 24 can be set to a sealed connection through the clamping member 6, etc. Such adjustments and changes to the specific connection method between the flushing connector 4 and the flushing channel 24 do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model.

[0084] Preferably, such as Figure 12 , Figures 14 to 15 As shown, the filter assembly of this utility model also includes a clamping member 6. The flushing connector 4 is provided with a clamping groove that is compatible with the clamping member 6. The bottom of the filter bottle 2 is provided with an insertion hole that is compatible with the clamping member 6. When sealed, the clamping member 6 passes through the insertion hole and is inserted into the clamping groove.

[0085] With this configuration, compared to setting the flushing connector 4 and the flushing channel 24 to be connected by a thread, setting the flushing connector 4 and the flushing channel 24 to be connected by a sealing connection through the clamping member 6, when the flushing connector 4 is installed into the flushing channel 24, there is no need to rotate the flushing connector 4; it can be directly snapped into the clamping groove by the clamping member 6, thereby improving the installation efficiency of the flushing connector 4.

[0086] Preferably, such as Figure 1 , Figure 2 , Figures 13 to 15 As shown, the filter bottle cover 1 is provided with a first disassembly and assembly structure, and the filter bottle 2 is provided with a second disassembly and assembly structure, so that the user can use the first disassembly and assembly structure and / or the second disassembly and assembly structure to rotate the filter bottle cover 1 and the filter bottle 2 relative to each other, thereby installing the filter bottle cover 1 onto the filter bottle 2 or removing the filter bottle cover 1 from the filter bottle 2.

[0087] With this configuration, namely by setting a first disassembly structure on the filter bottle cap 1 and a second disassembly structure on the filter bottle 2, the user can rotate the filter bottle cap 1 relative to the filter bottle 2 using either the first or second disassembly structure, thereby installing or removing the filter bottle cap 1 from the filter bottle 2 without the need for special disassembly tools. This reduces the cost of using the filtration components and improves the user experience.

[0088] The following is combined with, for example Figure 1 , Figure 2 and Figure 13 Let's introduce the specific structural types of the first disassembly and assembly structure.

[0089] In one specific embodiment, such as Figure 1 , Figure 2 and Figure 13As shown, the first disassembly and assembly structure includes a protrusion structure 11 formed on the filter bottle cap 1. The protrusion structure 11 has at least two clamping surfaces 111, and the filter bottle cap 1 can be rotated relative to the filter bottle 2 by clamping the clamping surfaces 111.

[0090] With this configuration, on the one hand, the filter bottle cover 1 can be rotated relative to the filter bottle 2 by clamping the two clamping surfaces 111 with conventional tools such as wrenches, so that the filter bottle cover 1 can be removed from the filter bottle 2 without the need for special tools. On the other hand, during the production of the filter assembly, the robot can clamp the two clamping surfaces 111 to install the filter bottle cover 1 onto the filter bottle 2, thereby improving the assembly efficiency of the filter assembly.

[0091] It should be noted that, in practical applications, those skilled in the art can configure the protruding structure 11 to have two clamping surfaces 111, or the protruding structure 11 to have three clamping surfaces 111, or even more clamping surfaces 111, etc. Such adjustments and changes to the specific number of clamping surfaces 111 on the protruding structure 11 do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model.

[0092] Preferably, such as Figure 1 , Figure 2 and Figure 13 As shown, the protruding structure 11 has two clamping surfaces 111, which are parallel to each other.

[0093] Preferably, such as Figure 1 , Figure 2 and Figure 13 As shown, the filter bottle cover 1 is provided with a water outlet 14, which is provided on the protruding structure 11. The water outlet 14 includes an inlet and / or an outlet.

[0094] By setting the water outlet 14 on the protruding structure 11, space can be saved for the filter bottle cover 1, making the filter bottle cover 1 smaller, thereby saving installation space for the filter assembly.

[0095] In another specific embodiment, such as Figure 1 , Figure 2 and Figure 13 As shown, the first disassembly structure includes a first disassembly hole 12 provided on the filter bottle cover 1. The first disassembly hole 12 allows a rod-shaped tool to be inserted so that the user can hold the rod-shaped tool to rotate the filter bottle cover 1 relative to the filter bottle 2.

[0096] With this design, when it is necessary to remove the filter bottle cap 1, the user can insert a rod-shaped tool into the first removal hole 12, thereby allowing the user to hold the rod-shaped tool and rotate the filter bottle cap 1 relative to the filter bottle 2, and then remove the filter bottle cap 1 from the filter bottle 2. No special tools are needed; the filter bottle cap 1 can be removed and installed using a general-purpose rod-shaped tool, further improving the user experience.

[0097] It should be noted that, in practical applications, those skilled in the art do not impose any limitations on the specific number of the first disassembly holes 12. For example, the number of the first disassembly holes 12 can be set to only one, or the number of the first disassembly holes 12 can be set to two or more, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0098] Preferably, the number of the first disassembly hole 12 is one.

[0099] It should be noted that in practical applications, this utility model does not limit the specific orientation of the first disassembly hole 12. For example, the central axis of the first disassembly hole 12 can be set perpendicular to the central axis of the filter bottle cap 1, or the central axis of the first disassembly hole 12 can be set at an angle α with the central axis of the filter bottle cap 1, where 0 < α < 90°, etc. Such adjustments and changes to the specific orientation of the first disassembly hole 12 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0100] Preferably, such as Figure 1 , Figure 2 and Figure 13 As shown, the first disassembly hole 12 is provided on the outer peripheral surface of the protruding structure 11 and the central axis of the first disassembly hole 12 is perpendicular to the central axis of the filter bottle cover 1.

[0101] With this configuration, that is, by setting the central axis of the first disassembly hole 12 to be perpendicular to the central axis of the filter bottle cover 1, the rod-shaped tool can be parallel to the rotation plane of the filter bottle cover 1, which makes it easier for the user to hold the rod-shaped tool and drive the filter bottle cover 1 to rotate around the central axis of the filter bottle cover 1, thus making it easier to remove the filter bottle cover 1 from the filter bottle 2.

[0102] It should be noted that, in practical applications, this utility model does not impose any limitations on the shape of the first disassembly hole 12. For example, the first disassembly hole 12 can be set as a circular hole, or it can be set as a square hole, or it can be set as any other possible shape, etc. Such adjustments and changes to the specific shape of the first disassembly hole 12 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0103] Preferably, the first disassembly hole 12 is a circular hole.

[0104] It should be noted that in practical applications, the first disassembly and assembly structure can be configured to include only the protruding structure 11, and the protruding structure 11 has at least two clamping surfaces 111. Alternatively, the first disassembly and assembly structure can be configured to include only the first disassembly and assembly hole 12. Or, the first disassembly and assembly structure can be configured to include both the protruding structure 11 and the first disassembly and assembly hole 12, and the protruding structure 11 has at least two clamping surfaces 111, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0105] Preferably, such as Figure 1 , Figure 2 and Figure 13 As shown, the first disassembly structure includes a protrusion 11 formed on the filter bottle cap 1. The protrusion 11 has at least two clamping surfaces 111. By clamping the clamping surfaces 111, the filter bottle cap 1 can be rotated relative to the filter bottle 2. The first disassembly structure also includes a first disassembly hole 12 provided on the filter bottle cap 1. The first disassembly hole 12 allows a rod-shaped tool to be inserted so that the user can hold the rod-shaped tool to rotate the filter bottle cap 1 relative to the filter bottle 2.

[0106] This setup allows users to easily install and remove the filter cap 1 using the appropriate tools, further enhancing the user experience.

[0107] The following is combined Figure 14 and Figure 15 Let's introduce the specific structural types of the second disassembly and assembly structure.

[0108] In one specific embodiment, such as Figure 14 and Figure 15 As shown, the second disassembly and assembly structure includes a handle 21 located at the bottom of the filter bottle 2, so that the user can hold the handle 21 to rotate the filter bottle 2 relative to the filter bottle cover 1.

[0109] By configuring the second disassembly structure to include a grip 21 located at the bottom of the filter bottle 2, it is convenient for the user to hold the grip 21 to rotate the filter bottle 2 relative to the filter bottle cover 1, thereby installing the filter bottle 2 onto the filter bottle cover 1 or removing the filter bottle 2 from the filter bottle cover 1.

[0110] Preferably, such as Figure 15 As shown, the bottom of the filter bottle 2 is provided with a groove 25 and a first partition 211 and a second partition 212. The first partition 211 and the second partition 212 are located in the groove 25 and are arranged in parallel. The first partition 211 and the second partition 212 form a holding part 21.

[0111] With this configuration, on the one hand, the first partition 211 and the second partition 212 can form a holding part 21, which is convenient for users to hold and thus realize the convenient disassembly and installation of the filter bottle 2 assembly. On the other hand, during the production of the filter bottle 2 assembly, it is convenient for the robot arm to clamp on the first partition 211 and the second partition 212, thereby improving the production and assembly efficiency of the filter assembly.

[0112] It should be noted that the gripping part 21 is not limited to the first partition 211 and the second partition 212 forming the gripping part 21. For example, the gripping part 21 can also be configured as a gripping ring, or it can be configured in any other possible form, etc. Such adjustments and changes to the specific structural type of the gripping part 21 do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model. Of course, preferably, the first partition 211 and the second partition 212 form the gripping part 21.

[0113] In another embodiment, such as Figure 15 As shown, the second disassembly structure also includes a second disassembly hole 22 provided on the filter bottle 2. The second disassembly hole 22 allows a rod-shaped tool to be inserted so that the user can hold the rod-shaped tool and rotate the filter bottle 2 relative to the filter bottle cover 1.

[0114] With this design, when it is necessary to disassemble the filter bottle 2, the user can insert a rod-shaped tool into the second disassembly hole 22, thereby allowing the user to hold the rod-shaped tool and rotate the filter bottle 2 relative to the filter bottle cover 1, and then remove the filter bottle 2 from the filter bottle cover 1. No special tools are needed; the filter bottle cover 1 can be disassembled and assembled using a general-purpose rod-shaped tool, further improving the user experience.

[0115] It should be noted that, in practical applications, those skilled in the art do not impose any limitations on the specific number of the second disassembly holes 22. For example, the number of the second disassembly holes 22 can be set to only one, or the number of the second disassembly holes 22 can be set to two or more, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0116] Preferably, the number of the second disassembly hole 22 is one.

[0117] It should be noted that, in practical applications, this utility model does not limit the specific orientation of the second disassembly hole 22. For example, the central axis of the second disassembly hole 22 can be set perpendicular to the central axis of the filter bottle 2, or the central axis of the second disassembly hole 22 can be set at an angle b with the central axis of the filter bottle 2, where 0 < b < 90°, etc. Such adjustments and changes to the specific orientation of the second disassembly hole 22 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0118] Preferably, such as Figure 15 As shown, the second disassembly hole 22 is provided on the outer peripheral surface of the filter bottle 2 and the central axis of the second disassembly hole 22 is perpendicular to the central axis of the filter bottle cover 1.

[0119] With this configuration, that is, by setting the central axis of the second disassembly hole 22 to be perpendicular to the central axis of the filter bottle 2, the rod-shaped tool can be parallel to the rotation plane of the filter bottle 2, which makes it easier for the user to hold the rod-shaped tool and drive the filter bottle 2 to rotate around the central axis of the filter bottle 2, thus making it easier to remove the filter bottle 2 from the filter bottle cover 1.

[0120] It should be noted that, in practical applications, this utility model does not impose any limitations on the shape of the second disassembly hole 22. For example, the second disassembly hole 22 can be set as a circular hole, or it can be set as a square hole, or it can be set as any other possible shape, etc. Such adjustments and changes to the specific shape of the second disassembly hole 22 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0121] It should be noted that in practical applications, the second disassembly structure may be configured to include only the gripping part 21 located at the bottom of the filter bottle 2, or it may be configured to include only the second disassembly hole 22 located on the filter bottle 2, or it may be configured to include the gripping part 21 located at the bottom of the filter bottle 2 and the second disassembly hole 22, etc. Such adjustments and changes to the specific configuration of the second disassembly structure do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0122] Preferably, such as Figure 15 As shown, the second disassembly and assembly structure includes a handle 21 provided at the bottom of the filter bottle 2, so that the filter bottle 2 can be rotated relative to the filter bottle cover 1 by holding the handle 21. The second disassembly and assembly structure also includes a second disassembly and assembly hole 22 provided on the filter bottle 2, which allows a rod-shaped tool to be inserted so that the user can hold the rod-shaped tool to rotate the filter bottle 2 relative to the filter bottle cover 1.

[0123] This setup allows users to easily install and remove the filter cap 1 using the appropriate tools, further enhancing the user experience.

[0124] It should be noted that in practical applications, a first disassembly structure can be provided only on the filter bottle cap 1. When the filter bottle 2 assembly needs to be installed or removed, the filter bottle 2 is fixed, and the filter bottle cap 1 is rotated relative to the filter bottle 2 using the first disassembly structure, thereby installing the filter bottle cap 1 onto the filter bottle 2, or removing the filter bottle cap 1 from the filter bottle 2. Alternatively, a second disassembly structure can be provided only on the filter bottle 2. When the filter bottle 2 assembly needs to be installed or removed, the filter bottle cap 1 is first fixed, and the filter bottle 2 is rotated relative to the filter bottle cap 1 using the second disassembly structure, thereby installing or removing the filter bottle cap 1. Bottle 2 can be installed onto filter bottle cap 1, or filter bottle 2 can be removed from filter bottle cap 1. Alternatively, a first disassembly structure can be provided on filter bottle cap 1 and a second disassembly structure can be provided on filter bottle 2. When it is necessary to install or remove the filter bottle 2 assembly, the filter bottle cap 1 can be rotated relative to filter bottle 2 by means of the first disassembly structure on filter bottle cap 1 and the second disassembly structure on filter bottle 2, so as to realize the disassembly and installation of filter bottle cap 1 and filter bottle 2, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0125] Preferably, the filter bottle cap 1 is provided with a first disassembly structure, and the filter bottle 2 is provided with a second disassembly structure, so that the filter bottle cap 1 can rotate relative to the filter bottle 2 by means of the first disassembly structure and the second disassembly structure.

[0126] In a second aspect, the present invention also provides a filtration device comprising any of the filtration components described in the first aspect.

[0127] It should be noted that the filter device can be set as an under-sink water purifier, or as a countertop water purifier, or as any other possible filter device, etc. Such adjustments and changes to the specific type of filter device do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0128] For example, the filtration device is an under-sink water purifier.

[0129] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A filter assembly characterized by, The filter assembly includes a filter bottle (2) and a filter bottle cap (1). The filter bottle (2) has a mounting cavity (20) for installing a filter element (3). The end of the filter bottle (2) is provided with an opening (201) communicating with the mounting cavity (20). The filter bottle cap (1) is adapted to the opening (201) and the filter bottle cap (1) is screwed to the filter bottle (2). The filter assembly further includes an anti-loosening component (5), the filter bottle cap (1) is provided with a first insertion hole (13) adapted to the anti-loosening component (5), and the filter bottle (2) is provided with a second insertion hole (23) adapted to the anti-loosening component (5). The anti-loosening component (5) is configured to be able to be inserted into the first socket (13) and the second socket (23) in sequence when it is in the first installation mode and to be able to be removed from the first socket (13) and the second socket (23); the anti-loosening component (5) is configured to be able to be inserted into the first socket (13) and the second socket (23) in sequence when it is in the second installation mode and to prevent it from being removed from the first socket (13) and the second socket (23), and to prevent the filter bottle cap (1) from rotating relative to the filter bottle (2) when the anti-loosening component (5) is inserted into the first socket (13) and the second socket (23) in sequence.

2. The filter assembly according to claim 1, characterized in that, The anti-loosening component (5) includes a first pin (51) and a second pin (52), both of which can be sequentially inserted into the first insertion hole (13) and the second insertion hole (23), thereby preventing the filter bottle cap (1) from rotating relative to the filter bottle (2). When the first pin (51) is inserted into the first socket (13) and the second socket (23) in sequence, at least a portion of the first pin (51) protrudes from the outside of the filter bottle cap (1) so that the first pin (51) can be pulled out to facilitate the removal of the filter bottle cap (1) from the filter bottle (2). When the second pin (52) is inserted into the first socket (13) and the second socket (23) in sequence, the second pin (52) is completely located in the first socket (13) and the second socket (23), thereby preventing the second pin (52) from being pulled out from the first socket (13) and the second socket (23).

3. The filter assembly of claim 2, wherein, The number of the first socket (13) and the second socket (23) are two sets, wherein: The first pin (51) includes a first insertion part (511), a connecting part (512), and a second insertion part (513) connected together. The first insertion part (511) and the second insertion part (513) are respectively inserted into two sets of first insertion holes (13) and second insertion holes (23). When installed, the connecting part (512) protrudes from the outside of the filter bottle cap (1). The second pin (52) includes two separate inserts, which are inserted into the first socket (13) and the second socket (23) respectively.

4. The filter assembly of claim 1, wherein, The anti-loosening component (5) has a first insertion end (531) and a second insertion end (532), and the second insertion hole (23) has a stepped surface (231) at the end away from the first insertion hole (13), wherein: The stepped surface (231) extends toward the first insertion hole (13). The size of the first insertion end (531) is larger than the size of the second insertion end (532). When the first insertion end (531) is inserted into the first insertion hole (13) and the second insertion hole (23) in sequence, the first insertion end (531) abuts against the stepped surface (231) so that the second insertion end (532) protrudes outside the filter bottle cap (1). When the second insertion end (532) is inserted into the first insertion hole (13) and the second insertion hole (23) in sequence, the second insertion end (532) is located inside the stepped surface (231) so that the anti-loosening member (5) is entirely located inside the first insertion hole (13) and the second insertion hole (23). Alternatively, the stepped surface (231) extends away from the first socket (13). When the first plug-in end (531) is inserted into the first socket (13) and the second socket (23) in sequence, the first plug-in end (531) is located within the stepped surface (231) so that the anti-loosening member (5) is entirely located within the first socket (13) and the second socket (23). When the second plug-in end (532) is inserted into the first socket (13) and the second socket (23) in sequence, the second plug-in end (532) abuts against the bottom of the second socket (23) so that the first plug-in end (531) protrudes from the outside of the filter bottle cap (1).

5. The filter assembly of claim 4, wherein, The stepped surface (231) extends toward the first insertion hole (13), wherein: the anti-loosening member (5) is a U-shaped pin, the open end of the U-shaped pin is the first insertion end (531), the closed end of the U-shaped pin is the second insertion end (532), and the width of the U-shaped pin increases sequentially from its closed end to its open end; or, the anti-loosening member (5) includes a connected U-shaped insertion part (533) and a support part (534), the open end of the U-shaped insertion part (533) is the first insertion end (531), the closed end of the U-shaped insertion part (533) is the second insertion end (532), and the support part (534) is disposed at the open end of the U-shaped insertion part (533) and located outside the U-shaped insertion part (533); Alternatively, the stepped surface (231) extends in a direction away from the first insertion hole (13), wherein: the anti-loosening member (5) is a U-shaped pin, the open end of the U-shaped pin is the first insertion end (531), and the closed end of the U-shaped pin is the second insertion end (532).

6. The filter assembly of claim 1, wherein, The filtration assembly also includes a filter element (3), which is installed in the mounting cavity (20). The filter element (3) is one of a pre-filter, a reverse osmosis membrane filter, or an ultrafiltration filter.

7. The filter assembly of claim 6, wherein, The filter assembly also includes an end pressure member (31), which is disposed at the end of the filter element (3) and can be sealed to the filter element (3).

8. The filter assembly of claim 1, wherein, The bottom of the filter bottle (2) is also provided with a rinsing channel (24), and the filter assembly also includes a rinsing connector (4), one end of which is located inside the rinsing channel (24) and is sealed to the rinsing channel (24).

9. The filter assembly of any one of claims 1 to 8, wherein, The filter bottle cap (1) is provided with a first disassembly structure, and the filter bottle (2) is provided with a second disassembly structure, so that the user can use the first disassembly structure and / or the second disassembly structure to rotate the filter bottle cap (1) relative to the filter bottle (2), thereby installing the filter bottle cap (1) onto the filter bottle (2) or removing the filter bottle cap (1) from the filter bottle (2).

10. A filter device, characterized by The filtration device includes the filtration component according to any one of claims 1 to 9.

Images