Filtering device and closestool

Abstract

The invention discloses a filtering device and a closestool. The filtering device comprises a shell, a water passing piece and a filtering assembly, and the shell is provided with a water inlet part and a water outlet part; the filter assembly comprises a filter element and a filter material arranged in the filter element, and the filter element is provided with a filter element cavity; the water passing piece is arranged in the containing space of the shell and penetrates through the filter element cavity, and the water passing piece is provided with a first channel and a second channel; wherein the first channel is communicated with the water inlet part and an area between the outer wall of the filter element and the inner wall of the shell, and the second channel is communicated with the filter element cavity and the water outlet part. According to the water passing piece, the first channel and the second channel are integrated, the area between the outer wall face of the filter element and the shell is communicated with the water inlet part through the first channel, the filter element cavity is communicated with the water outlet part through the second channel, a water path in the filtering device is compact in arrangement, the structure is simple, parts are few, and the size of the filtering device is reduced; therefore, the filtering device can be conveniently mounted in the closestool.

Description

Technical Field

[0001] This application relates to the field of smart toilet technology, and in particular to a filtration device and a toilet. Background Technology

[0002] Existing smart toilets typically have a cleaning device to perform functions such as posterior washing and feminine washing.

[0003] In addition, considering hygiene and health issues and to extend the lifespan of the washing device, a filtration system is usually required to filter the water before supplying it for cleaning. The main problems with existing filtration systems are: their complex structure and large size make them difficult to install inside the toilet bowl. Summary of the Invention

[0004] In view of the above problems, this application provides a filtration device and a toilet. The housing of the filtration device forms an inlet and an outlet. The area between the outer wall of the filter element and the housing is connected to the inlet through a first channel of the water-passing component. The filter element cavity is connected to the outlet through a second channel of the water-passing component. The above-mentioned filtration device can make the water circuit arrangement compact and the structure simple, reducing the volume of the filtration device, thereby facilitating the installation of the filtration device inside the toilet.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide a filtration device, which includes a housing, a water-passing component, and a filtration assembly. The housing forms an accommodating space and has an inlet and an outlet. The filtration assembly is disposed in the accommodating space and includes a filter element and filter media disposed within the filter element. The filter element has a filter element cavity. The water-passing component is disposed in the accommodating space and penetrates the filter element cavity. The water-passing component has a first channel and a second channel. The first channel connects the area between the inlet and the outer wall of the filter element and the inner wall of the housing, and the second channel connects the filter element cavity and the outlet, so that water flows from the inlet through the first channel into the area between the outer wall of the filter element and the inner wall of the housing, passes through the filter element from the outside to the inside, enters the filter element cavity, and then flows out from the outlet through the second channel.

[0006] In one possible implementation, the filter element includes an adsorption filter element, which has a cylindrical structure.

[0007] In one possible implementation, the housing includes: a housing body having a port communicating with the accommodating space; and an end cap detachably connected to the port to close the accommodating space; wherein the filter assembly can be inserted into or removed through the port.

[0008] In one possible implementation, the end cap is recessed on the side facing the accommodating space to form a retaining groove, and a buffer is provided in the retaining groove.

[0009] In one possible implementation, the filtration device further includes: a first seal disposed between the end cap and the port; a second and a third seal disposed axially between the outer wall of the filter element and the inner wall of the housing, for sealing the area between the outer wall of the filter element and the inner wall of the housing; and a fourth seal disposed between the water-passing component and the inner wall of the housing, for sealing the gap between the water-passing component and the inner wall of the housing; wherein the water outlet is disposed on the housing and located outside the area of ​​the second and third seals, and is correspondingly connected to the second channel.

[0010] In one possible implementation, the filtration device further includes: a first one-way valve disposed in the water inlet section, the first one-way valve being configured to be open in the water inlet direction and closed in the opposite direction to the water inlet direction; and a second one-way valve disposed in the area where the water inlet section communicates with the accommodating space, the second one-way valve having a normally closed state and switching to an open state when a filter assembly installed in the accommodating space is pressed against it.

[0011] In one possible implementation, the water inlet has a tapering flow channel and an interface communicating with the accommodating space. The second one-way valve includes: a water-blocking member having a water-blocking portion located within the flow channel and a top abutment portion extending through the interface into the accommodating space; and an elastic member applying a force to the water-blocking portion toward the interface. When the filter assembly is installed in the accommodating space, the top abutment portion is abutted by the filter assembly, causing the water-blocking portion to move away from the interface and open the flow channel. When the filter assembly is disassembled, the elastic member pushes the water-blocking portion back to its original position and seals the interface.

[0012] In one possible implementation, the filter media includes a scale inhibitor.

[0013] In one possible implementation, the filter media is disposed inside a filter media box, which is detachably disposed within the filter element cavity. The filter media box includes a perforated box body and a detachable box cover.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a toilet, which includes a filter device and a cleaning device, wherein the filter device is the filter device described above, and the water outlet of the filter device is connected to the cleaning device.

[0015] In the aforementioned filtration device and toilet, water enters the area between the outer wall of the filter element and the housing through the first channel of the water-passing component from the water inlet. After being filtered from the outside of the filter element cavity to the filter element cavity, it flows out from the water outlet through the second channel of the water-passing component. The water passage arrangement is integrated through the water-passing component. The water passage arrangement of the filtration device is compact and the device structure is simple, which reduces the volume of the filtration device and makes it convenient to install the filtration device inside the toilet.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above contents and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an exploded view of the structure of an embodiment of the filtering device of this application; Figure 2 for Figure 1 Schematic diagram of the external structure of the filter device; Figure 3 for Figure 1 Schematic diagram of the internal structure of the filtration device.

[0019] Among them, 100 is the filter device; 10 is the housing; 101 is the water inlet; 102 is the water outlet; 11 is the end cap; 12 is the main body of the housing; 13 is the accommodating space; 20 is the water passage component; 21 is the first channel; 22 is the second channel; 23 is the through hole; 30 is the filter assembly; 31 is the filter element; 311 is the filter element cavity; 32 is the first end plate; 33 is the second end plate; 40 is the buffer component; 51 is the first sealing component; 52 is the second sealing component; 53 is the third sealing component; 54 is the fourth sealing component; 61 is the first one-way valve; 611 is the elastic part; 612 is the sliding part; 62 is the second one-way valve; 621 is the elastic part; 622 is the water blocking component; 70 is the filter media box; 71 is the box body; 72 is the box cover. Detailed Implementation

[0020] The embodiments of the technical solution of this application will be described in detail below. The following embodiments are only used to illustrate the technical solution of this application more clearly, and are therefore only examples, and should not be used to limit the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0022] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, unless otherwise explicitly specified, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more sets (including two sets), and "multiple pieces" refers to two or more pieces (including two pieces).

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0025] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0027] Currently, the filter devices on smart toilets are complex in structure and large in size, making them difficult to install inside the toilet.

[0028] Based on the above considerations, in order to solve the problem that the existing filter devices are complex in structure and large in size, making them difficult to install inside the toilet, this application proposes a filter device and a toilet. In this filter device, the area between the outer wall of the filter element and the shell is connected to the water inlet through a first channel, and the filter element cavity is connected to the water outlet through a second channel. The water circuit arrangement of the filter device is compact and the structure is simple, reducing the volume of the filter device.

[0029] Please refer to the following: Figures 1 to 3 , Figure 1 This is an exploded view of the structure of an embodiment of the filtering device of this application; Figure 2 for Figure 1 Schematic diagram of the external structure of the filter device; Figure 3 for Figure 1 Schematic diagram of the internal structure of the filtration device.

[0030] In some embodiments, the filtration device 100 includes a housing 10, a water-passing component 20, and a filtration assembly 30; the housing 10 forms an accommodating space 13, and the housing 10 is provided with a water inlet 101 and a water outlet 102; the filtration assembly 30 is disposed in the accommodating space 13, and includes a filter element 31 and filter media (not shown) disposed within the filter element 31, the filter element 31 having a filter element cavity 311; the water-passing component 20 is disposed in the accommodating space 13 and penetrates the filter element cavity 311, the water-passing component... 20 has a first channel 21 and a second channel 22; wherein, the first channel 21 connects the area between the water inlet 101 and the outer wall of the filter element 31 and the inner wall of the housing 10, and the second channel 22 connects the filter element cavity 311 and the water outlet 102, so that water flows from the water inlet 101 through the first channel 21 into the area between the outer wall of the filter element 31 and the inner wall of the housing 10, passes through the filter element 31 from the outside to the inside into the filter element cavity 311, and then flows out from the water outlet 102 through the second channel 22.

[0031] In some embodiments, the filtration device 100 includes a housing 10, a water-passing component 20, and a filtration assembly 30; the housing 10 forms an accommodating space 13, and the housing 10 has a water inlet 101 and a water outlet 102; the water-passing component 20 is disposed in the accommodating space 13, and the water-passing component 20 has a first channel 21 and a second channel 22; the filtration assembly 30 includes a filter element 31 and filter media (not shown), the filter element 31 is disposed in the accommodating space 13, the filter element 31 has a filter element cavity 311, and the filter media is disposed in the filter element cavity 311; wherein, the area between the outer wall surface of the filter element 31 and the housing 10 is connected to the water inlet 101 through the first channel 21, and the filter element cavity 311 is connected to the water outlet 102 through the second channel 22, so that water is filtered from outside the cavity of the filter element 31 to the filter element cavity 311 and then flows out from the water outlet 102.

[0032] The housing 10 can be a metal housing, a plastic housing, a composite material housing, etc. The water-passing component 20 serves to guide water flow. In this embodiment, the water-passing component 20 has both a first channel 21 and a second channel 22 internally. By using only one water-passing component 20, the inlet 101 can be connected to the area between the outer wall of the filter element 31 and the housing 10 through the first channel 21, while the outlet 102 can be connected to the filter element cavity 311 of the filter element 31 through the second channel 22. This allows for a compact water circuit arrangement within the filtration device 100, reducing its volume. The water-passing component 20 can be made of metal, plastic, ceramic, composite materials, etc. The filter assembly 30 is the main filter element of the filtration device 100 that performs the filtering function. In this embodiment, the filter assembly 30 includes a filter element 31 and filter media located in the filter element cavity 311 of the filter element 31. In this embodiment, the filter media achieves scale inhibition by preventing calcium and magnesium ions in the water from combining with negative ions in the water. In some embodiments, the filter media is used to remove calcium ions, magnesium ions, etc. from the water, thus removing scale. In other embodiments, the filter media can also sterilize the water or provide a fragrance. The filter element 31 removes tiny foreign objects from the water through physical filtration. In this embodiment, water enters the housing 10 from the inlet 101, enters the first channel 21 of the water-passing component 20 along the inlet 101, and then enters the area between the outer wall of the filter element 31 and the inner wall of the housing 10 through the first channel 21. Then, the water is filtered from the outside of the filter element 31 to the inside of the filter element 31, entering the filter element cavity 311 of the filter element 31. Next, the filter media in the filter element cavity 311 descales the water. After filtration and descaling, the water flows out from the filter element cavity 311 through the second channel 22 of the water-passing component 20 from the outlet 102 on the housing 10. In this embodiment, the water inlet 101 and the water outlet 102 on the housing 10 are located on the same side of the housing 10, so as to be connected to the first channel 21 and the second channel 22 on the water component 20, respectively.

[0033] Unlike existing technologies, this application provides a filtration device 100, which is equipped with a water-passing component 20. The water-passing component 20 integrates a first channel 21 and a second channel 22, allowing the area between the outer wall of the filter element 31 and the housing 10 to be connected to the water inlet 101 through the first channel 21. The filter element cavity 311 is connected to the water outlet 102 through the second channel 22. The internal water circuit of the filtration device 100 is compact, the structure is simple, and there are few parts, which reduces the size of the filtration device 100 and makes it convenient to install the filtration device 100 inside the toilet.

[0034] In some embodiments, filter element 31 includes an adsorption filter element, which has a cylindrical structure.

[0035] The adsorption filter element has numerous microporous structures. When water flows from the area between the outer wall of the filter element 31 and the housing 10 into the filter element cavity 311 inside the filter element 31, impurities in the water larger than the pore size of the microporous structure of the filter element 31 are adsorbed and trapped, thus being filtered. The adsorption filter element uses adsorption for filtration and is characterized by its thick wall. Its internal filter element cavity 311 is relatively small, and the filtration direction is from the outside of the filter element 31 to the inside, which reduces water flow blockage and improves the filtration speed. In this embodiment, the filter element 31 is specifically PP cotton with adsorption filtration properties. In other embodiments, the filter element 31 can also be an ultrafiltration membrane filter element, a reverse osmosis membrane filter element, a resin filter element, a metal mesh structure filter element, etc. In this embodiment, the adsorption filter element has a cylindrical hollow structure. In other embodiments, the adsorption filter element can also have a rectangular hollow structure, a spherical hollow structure, etc. In some other embodiments, the filter element 31 further includes a first end plate 32 and a second end plate 33, which cover both ends of the cylindrical adsorption filter element to form a filter element cavity 311. The first end plate 32 has a perforated structure. When the filter assembly 30 is installed in the accommodating space 13, the perforated structure on the first end plate 32 communicates with the second channel 22 on the water-passing component 20 so that water in the filter element cavity 311 can flow out from the second channel 22.

[0036] In some embodiments, the housing 10 includes a housing body 12 and an end cap 11. The housing body 12 has a port communicating with the accommodating space 13. The end cap 11 is detachably connected to the port to close the accommodating space 13. The filter assembly 30 can be inserted into or removed through the port. In some other embodiments, the housing 10 includes a housing body 12 and an end cap 11. The housing body 12 has a port (not shown) located on one side of the accommodating space 13 so that the accommodating space 13 communicates with the outside through the port. The end cap 11 is detachably connected to the port so that the filter assembly 30 is detachably disposed in the accommodating space 13.

[0037] In this embodiment, the end cap 11 is detachably connected to the port, allowing the housing 10 to be disassembled and opened to remove the internal filter assembly 30 and replace the internal adsorption filter element. It is easily understood that the adsorption filter element is a disposable filter element 31; by periodically replacing the adsorption filter element, the filtration effect of the filtration device 100 can be improved. In this embodiment, the filter media is disposed in the filter element cavity 311 of the filter element 31, and the filter media is separate from the filter element 31, thus allowing for individual replacement of either the filter media or the filter element 31, maximizing the lifespan of both. In this embodiment, the end cap 11 is threaded to the internal thread (not shown) of the port of the housing body 12 via an external threaded structure (not indicated). Threaded connections offer advantages such as convenient assembly and disassembly, and good sealing. In some other embodiments, the end cap 11 can be sealed to the port using a snap-fit ​​structure, a pin connection, or other methods.

[0038] In some embodiments, the end cap 11 is recessed on the side facing the accommodating space 13 to form a retaining groove (not shown), and a buffer 40 is provided in the retaining groove.

[0039] In some other embodiments, the filter device 100 further includes a buffer 40, and the end cap 11 is recessed on the side facing the receiving space 13 to form a retaining groove (not shown), and the buffer 40 is disposed in the retaining groove.

[0040] The buffer element 40 can specifically be a deformable hollow tube, a spring-loaded hollow cavity structure, or a deformable material. The buffer element 40 is disposed in the accommodating space 13 and can mitigate the expansion of water during freezing by contracting and deforming the buffer element 40, thereby reducing the risk of ice expansion cracking the shell 10. Furthermore, the buffer element 40 can also mitigate the impact of water inside the shell 10, thereby reducing the water hammer effect and protecting the filter device 100. In this embodiment, the buffer element 40 is located in the retaining groove of the end cap 11, allowing for replacement or repair by removing the end cap 11. In other embodiments, the buffer element 40 can also be disposed on the inner wall of the shell body 12. Additionally, there can be one or more buffer elements 40, which can be spaced apart or connected together.

[0041] In some embodiments, the filtration device 100 further includes: a first sealing member 51 disposed between the end cap 11 and the port; a second sealing member 52 and a third sealing member 53 disposed axially between the outer wall of the filter element 31 and the inner wall of the housing 10, for sealing the area between the outer wall of the filter element 31 and the inner wall of the housing 10; and a fourth sealing member 54 disposed between the water-passing member 20 and the inner wall of the housing 10, for sealing the gap between the water-passing member 20 and the inner wall of the housing 10; wherein the water outlet 102 is disposed on the housing 10 and located in the area outside the second sealing member 52 and the third sealing member 53, and is correspondingly connected to the second channel 22.

[0042] In some other embodiments, the filter device 100 further includes a first seal 51. The first seal 51 is disposed between the end cap 11 and the port.

[0043] The first sealing element 51 is used to seal the port of the separable end cap 11 and the housing body 12 after connection. The first sealing element 51 is specifically a sealing ring. There can be one or more first sealing elements 51. Using multiple first sealing elements 51 can improve the sealing effect.

[0044] In some other embodiments, the filter device 100 further includes a second seal 52 and a third seal 53, which are located between the outer wall of the filter element 31 and the inner wall of the housing 10. The second seal 52 and the third seal 53 are spaced apart on the outer wall. The water outlet 102 is located in the area outside the second seal 52 and the third seal 53 of the housing 10 and is provided corresponding to the second channel 22 of the water passage 20.

[0045] The spaced-apart second seal 52 and third seal 53 seal the area between the outer wall of the filter element 31 and the inner wall of the housing 10, allowing water to enter this space only through the first channel 21 and filter only into the filter element cavity 311 of the filter element 31. This seals off unfiltered water after it enters the area between the outer wall of the filter element 31 and the inner wall of the housing 10 from the water inlet 101, reducing the problem of unfiltered water leakage and mixing with filtered water. Specifically, the second seal 52 and third seal 53 are sealing rings; the number of second seals 52 can be one or more, and the volume of water in the third seal 53 can also be one or more. In some embodiments, the second seal 52 and third seal 53 can be fixed to the outside of the first end plate 32 and the second end plate 33, respectively.

[0046] In some other embodiments, the filter device 100 further includes a fourth seal 54 disposed between the water-passing member 20 and the inner wall of the housing 10. The fourth seal 54 is used to separate the area between the outer wall surface of the filter element 31 and the housing 10 and the second channel 22.

[0047] The fourth seal 54 is used to seal the gap between the water-passing component 20 and the inner wall of the housing 10. Specifically, the fourth seal 54 can be a sealing ring. One or more fourth seals 54 can be provided; providing multiple fourth seals 54 can improve the sealing effect.

[0048] In some embodiments, the filter device 100 further includes a first one-way valve 61, which is disposed in the water inlet 101 and configured to be open in the water inlet direction and closed in the opposite water inlet direction.

[0049] The first one-way valve 61 is used to prevent water entering the housing 10 from the inlet 101 from flowing back to the external water supply network. The first one-way valve 61 has a one-way conduction characteristic. When water enters the first channel 21 of the water-passing component 20 from the inlet 101, the first one-way valve 61 is open. When water backflow occurs, the first one-way valve 61 is closed, reducing the problem of water backflow. In some specific embodiments, the first one-way valve 61 includes an elastic part 611 and a sliding part 612. The elastic part 611 is located along the water inlet direction of the sliding part 612. The elastic part 611 pushes the sliding part 612 to slide to the inlet of the inlet 101. When water enters from the inlet 101 along the water inlet direction, the water flow pushes the sliding part 612 to overcome the elastic force and slide away from the inlet of the inlet 101, allowing water to enter the inlet 101. When water backflow occurs, the sliding part 612 seals the inlet of the inlet 101, reducing the problem of water backflow.

[0050] In some embodiments, the filtration device 100 further includes a second one-way valve 62, which is located in the area where the water inlet 101 communicates with the accommodating space 13. The second one-way valve 62 is configured to be opened after being pushed against by the filtration assembly 30 of the accommodating space 13.

[0051] In some embodiments, a second check valve 62 is provided in the area where the water inlet 101 communicates with the accommodating space 13. The second check valve 62 is normally closed and switches to an open state when it is pushed against by the filter assembly 30 installed in the accommodating space 13.

[0052] The second check valve 62 is used to shut off the water supply when the filter assembly 30 is disassembled or replaced, preventing water from entering through the inlet 101 when the filter assembly 30 is not properly installed. When the filter assembly 30 is properly installed, the second check valve 62 is activated. By setting the second check valve 62, water inflow can be automatically blocked when the filter assembly 30 is replaced, eliminating the need to manually shut off the external water supply and facilitating the replacement of the filter assembly 30.

[0053] Furthermore, in some embodiments, the water inlet 101 is a gradually narrowing flow channel (not shown), including an interface (not shown) communicating with the accommodating space 13. The second one-way valve 62 includes an elastic member 621 and a water-blocking member 622. The water-passing member 20 has a through hole 23. The water-blocking member 622 includes a water-blocking part (not shown) located in the flow channel and a top-abutting part (not shown) passing through the interface and the through hole 23. The elastic member 621 is connected to the water-blocking part and applies pressure to the water-blocking part in the direction of the interface. After the top-abutting part is abutted by the filter assembly 30, it drives the water-blocking member 622 to move away from the direction of the interface until the water-blocking part separates from the interface. After the filter assembly 30 is disassembled, the water-blocking part abuts against the interface under the action of the elastic member 621.

[0054] In some other embodiments, the inlet 101 has a tapering flow channel and an interface communicating with the accommodating space 13. The second one-way valve includes 62: a water-blocking member 622 having a water-blocking portion located in the flow channel and a top abutting portion extending through the interface into the accommodating space 13; and an elastic member 621 that applies a force toward the interface to the water-blocking portion. When the filter assembly 30 is installed in the accommodating space 13, the top abutting portion is abutted by the filter assembly 30, causing the water-blocking portion to move away from the interface and open the flow channel. When the filter assembly 30 is disassembled, the elastic member 621 pushes the water-blocking portion to reset and seal the interface.

[0055] The water-blocking part is located along the water inlet direction of the elastic member 621. The elastic member 621 elastically squeezes the water-blocking part. When the top part of the water-blocking part 622 is not pushed by the filter assembly 30, the water-blocking part abuts against the interface of the flow channel, preventing water from flowing in. When the filter assembly 30 is installed in the accommodating space 13, the filter assembly 30 pushes against the top part of the water-blocking part 622, causing the top part to be pushed by the filter assembly 30 and drive the water-blocking part 622 to move away from the interface until the water-blocking part separates from the interface, allowing water to enter. In this embodiment, the water-blocking part 622 has a columnar structure. The water-blocking part 622 passes through the interface of the flow channel and the through hole 23 of the water-passing part 20 and extends into the accommodating space 13. The columnar wall of the columnar water-blocking part 622 is provided with a protrusion located in the flow channel, so that when the water-blocking part 622 slides, the protrusion covers the interface of the flow channel, or when the water-blocking part 622 slides, the protrusion separates from the interface, allowing the interface to be open. In some embodiments, the second end plate 33 of the filter assembly 30 abuts against the bottom to drive the water-blocking portion to slide, thereby opening the second one-way valve 62.

[0056] In some embodiments, the filter media includes a scale inhibitor.

[0057] Scale inhibitors are used to remove calcium ions, magnesium ions, etc., from water to descale it. Specific scale inhibitors can be organophosphonic acid scale inhibitors, polycarboxylic acid scale inhibitors, composite scale inhibitors, etc. In some other embodiments, the filter media may also include antibacterial filter media, aromatic filter media, etc., so that the filter media can also disinfect the water or provide an aromatic scent.

[0058] In some embodiments, the filter media is disposed in the filter media box 70, which is detachably disposed in the filter element cavity 311. The filter media box 70 includes a hollow box body 70 and a detachable box cover 72.

[0059] In some embodiments, the filter media box 70 is located in the filter element cavity 311. The filter media box 70 includes a box body 71 and a box cover 72, which are detachably connected to form an internal space (not shown). The box body 71 has a hollow structure, and the filter media is located in the internal space. Specifically, the detachable structure of the filter media box 70 facilitates the replacement of the internal filter media. The filter media box 70 can specifically be a metal shell 10, a plastic shell 10, a composite material shell 10, etc.

[0060] In some other embodiments, the filter material may also be directly disposed in the receiving cavity 311.

[0061] Unlike existing technologies, this application provides a filtration device 100, which is equipped with a water-passing component 20. The water-passing component 20 integrates a first channel 21 and a second channel 22, allowing the area between the outer wall of the filter element 31 and the housing 10 to be connected to the water inlet 101 through the first channel 21. The filter element cavity 311 is connected to the water outlet 102 through the second channel 22. The internal water circuit of the filtration device 100 is compact, the structure is simple, and there are few parts, which reduces the size of the filtration device 100 and makes it convenient to install the filtration device 100 inside the toilet.

[0062] Correspondingly, this application also provides a toilet, which includes a filter device and a cleaning device. The filter device is the filter device 100 of any of the above embodiments, and the water outlet 102 of the filter device 100 is connected to the cleaning device.

[0063] As described above, the water inlet of the filtration device is connected to a water supply structure, which can be a tap water pipe or a water tank, etc. The water supplied by the water supply structure is filtered by the filtration device, and the filtered water enters the cleaning device from the outlet for cleaning, which can improve the hygienic effect of the cleaning device and extend the service life of the cleaning device.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A filtration device, characterized in that, The filtration device includes: A housing, the interior of which forms an accommodating space, and the housing is provided with a water inlet and a water outlet; A filter assembly, disposed in the accommodating space, includes a filter element and filter media disposed within the filter element, the filter element having a filter element cavity; A water-passing component is disposed in the accommodating space and penetrates the filter cartridge cavity; the water-passing component has a first channel and a second channel. The first channel connects the water inlet section to the area between the outer wall of the filter element and the inner wall of the housing, and the second channel connects the filter element cavity to the water outlet section, so that water flows from the water inlet section through the first channel into the area between the outer wall of the filter element and the inner wall of the housing, passes through the filter element from the outside to the inside into the filter element cavity, and then flows out from the water outlet section through the second channel.

2. The filtration device according to claim 1, characterized in that, The filter element includes an adsorption filter element, which has a cylindrical structure.

3. The filtration device according to claim 2, characterized in that, The housing includes: A shell body having a port communicating with the accommodating space; An end cap, which is detachably connected to the port to close the receiving space; The filter component can be installed or removed through the port.

4. The filtration device according to claim 3, characterized in that, The end cap is recessed on the side facing the accommodating space to form a retaining groove, and a buffer is provided in the retaining groove.

5. The filtration device according to claim 3, characterized in that, The filtration device further includes: A first sealing element is disposed between the end cap and the port. The second and third sealing elements are axially spaced between the outer wall of the filter element and the inner wall of the housing, and are used to seal the area between the outer wall of the filter element and the inner wall of the housing. The fourth sealing element is disposed between the water-passing element and the inner wall of the housing, and is used to seal the gap between the water-passing element and the inner wall of the housing; The water outlet is located on the housing and in the area outside the second and third seals, and is connected to the second channel.

6. The filtration device according to claim 3, characterized in that, The filtration device further includes: A first check valve is provided at the water inlet section, and the first check valve is configured to be open in the water inlet direction and closed in the opposite direction of the water inlet direction. The second one-way valve is located in the area where the water inlet connects with the accommodating space. The second one-way valve is normally closed and switches to the open state when it is pushed against by the filter assembly installed in the accommodating space.

7. The filtration device according to claim 6, characterized in that, The water inlet has a gradually narrowing flow channel and an interface communicating with the accommodating space, and the second one-way valve includes: A water-blocking component has a water-blocking portion located within the flow channel and a top abutment portion extending through the interface into the receiving space; An elastic element applies a force toward the interface to the water-blocking portion; When the filter assembly is installed in the accommodating space, the top abutment is abutted by the filter assembly, causing the water-blocking part to move away from the interface and open the flow channel; when the filter assembly is disassembled, the elastic element pushes the water-blocking part to reset and seal the interface.

8. The filtration device according to claim 1, characterized in that, The filter media includes a scale inhibitor.

9. The filtration device according to claim 1 or 2, characterized in that, The filter media is disposed inside the filter media box, which is detachably disposed in the filter element cavity. The filter media box includes a hollow box body and a detachable box cover.

10. A toilet, characterized in that, The toilet includes a filter device and a cleaning device, wherein the filter device is the filter device according to any one of claims 1-9, and the water outlet of the filter device is connected to the cleaning device.

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