Filter and intelligent toilet

Abstract

The application discloses a filter and an intelligent toilet. The filter comprises a connecting head, a shell and a scale inhibition structure. The connecting head is formed with a communication cavity, a water inlet flow channel, a first water outlet flow channel and a second water outlet flow channel. The communication cavity is communicated between the water inlet flow channel and the second water outlet flow channel. The shell is connected with the connecting head, and the shell is formed with an accommodating cavity. The scale inhibition structure comprises a scale inhibition frame and a one-way sleeve. The scale inhibition frame is formed with a mounting cavity, and the mounting cavity is communicated between the first water outlet flow channel and the accommodating cavity. The one-way sleeve is sleeved outside the scale inhibition frame, and a water passing gap is formed between the one-way sleeve and the cavity wall of the communication cavity. The size of the water passing gap when the second water outlet flow channel is opened is smaller than the size of the water passing gap when the second water outlet flow channel is closed. The size of the water passing gap is changed by arranging the one-way sleeve, so that the scale inhibitor passing through the water outlet flow channel is reduced, and the consumption of the scale inhibitor in the toilet flushing process is reduced.

Description

Technical Field

[0001] This invention relates to the field of toilets, and more specifically to a filter and a smart toilet. Background Technology

[0002] Toilets are currently a common bathroom fixture, and smart toilets are particularly popular due to their ability to wash and dry the body. Smart toilets are equipped with filters to remove impurities. These filters typically have one inlet and two outlets: one for flushing and the other for washing the body. The nozzle for washing the body is relatively small, and scale buildup in this nozzle can clog the filter. Therefore, scale inhibitors need to be added to the filter to prevent scale formation. However, the water used for flushing is much greater than that used for washing the body, resulting in the loss of a significant amount of scale inhibitor in the filter during flushing, thus reducing its scale-inhibiting performance. Summary of the Invention

[0003] The main objective of this invention is to provide a filter and a smart toilet to solve the problem that traditional filters consume a large amount of scale inhibitor during the flushing process.

[0004] To achieve the above objectives, the filter proposed in this invention includes a connector, a housing, and a scale-inhibiting structure. The connector forms a connecting cavity, an inlet channel, a first outlet channel, and a second outlet channel, with the connecting cavity connecting the inlet channel and the second outlet channel. The housing is connected to the connector and forms a receiving cavity. The scale-inhibiting structure includes a scale-inhibiting frame and a one-way sleeve. The scale-inhibiting frame is disposed within the receiving cavity and forms an mounting cavity, which connects the first outlet channel and the receiving cavity. The one-way sleeve is fitted over the scale-inhibiting frame, and a water-passing gap is formed between the one-way sleeve and the cavity wall of the connecting cavity. When the second outlet channel is open, the size of the water-passing gap is smaller than the size of the water-passing gap when the second outlet channel is closed.

[0005] Optionally, the one-way sleeve includes a connected cylinder and an elastic arm, the elastic arm extending circumferentially along the cylinder, the elastic arm being close to or away from the cavity wall of the communicating cavity to change the size of the water passage gap.

[0006] Optionally, the elastic arm is inclined downward in a direction away from the cylinder.

[0007] Optionally, the number of elastic arms is at least two, and the at least two elastic arms are spaced apart along the axial direction of the one-way sleeve.

[0008] Optionally, the scale inhibitor frame is provided with a stop protrusion at one end near the first water outlet channel, the stop protrusion being used to stop the one-way sleeve.

[0009] Optionally, an installation ring is provided on the cavity wall of the installation cavity, and the filter further includes a sealing assembly, which is pressed against the end of the first water outlet channel between the installation ring and the installation ring to seal the first water outlet channel with the installation cavity.

[0010] Optionally, a scale inhibitor is provided inside the mounting cavity, and a filter screen is provided outside the scale inhibitor frame; the filter further includes a filter screen, which is disposed inside the first water outlet channel or inside the mounting cavity, and the filter screen and the filter screen are used to block the scale inhibitor.

[0011] Optionally, the filter further includes a foam body disposed within the mounting cavity.

[0012] Optionally, the connector is detachably connected to the housing; and / or,

[0013] The connector is fitted with a sealing ring, which abuts against the wall of the receiving cavity to seal the connector to the housing.

[0014] In addition, the present invention also provides a smart toilet, which includes a main body and a filter as described above. The main body has a cleaning port and a flushing port. The cleaning port is connected to the first water outlet channel, and the flushing port is connected to the second water outlet channel.

[0015] In this invention, the left end of the connecting cavity is connected to the inlet channel, and the right end of the connecting cavity is connected to the second outlet channel. The inlet channel is used to connect to the municipal water pipe, and the second outlet channel is used to connect to the flushing port to achieve the flushing function. The first outlet channel is used to connect to the washing port to achieve the human body washing function. The upper end of the shell is connected to the connector, and the shell forms a receiving cavity for accommodating the scale inhibitor structure. The scale inhibitor frame is set in the receiving cavity of the shell and is used to install the scale inhibitor. The scale inhibitor is used to prevent scale from forming in the internal pipes or nozzles of the cleaner, thus preventing malfunctions and extending the service life of the cleaner. One end of the mounting cavity is connected to the first outlet channel, and the other end of the mounting cavity is connected to the receiving cavity. A one-way sleeve is fitted over the scale inhibitor frame.

[0016] When the second water outlet is opened and the first water outlet is closed, water flows into the connecting cavity through the inlet channel. At this time, the water in the receiving cavity tends to be drawn upward by the water flow, forming an upward water flow. The one-way sleeve expands and deforms outward, reducing the size of the water passage gap between the one-way sleeve and the cavity wall of the connecting cavity, reducing the scale inhibitor passing through the second water outlet, and reducing the consumption of scale inhibitor during flushing.

[0017] When the first water outlet is open and the second water outlet is closed, water flows into the connecting cavity through the inlet channel and flows downwards along the connecting cavity. The one-way sleeve contracts inwards, increasing the size of the water passage gap between the one-way sleeve and the cavity wall. A large amount of water enters the installation cavity, mixes with the scale inhibitor in the scale inhibitor holder, and then flows into the cleaner through the first water outlet. This invention, by setting a one-way sleeve, changes the size of the water passage gap, thereby reducing the amount of scale inhibitor passing through the water outlet channel and reducing the consumption of scale inhibitor during flushing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a filter according to an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional schematic diagram of a filter according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the connection of a one-way sleeve according to an embodiment of the present invention;

[0022] Figure 4 This is an exploded view of a filter according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of a one-way sleeve according to an embodiment of the present invention;

[0024] Figure 6 This is a cross-sectional schematic diagram of the elastic arm when the first water outlet channel is closed and the second water outlet channel is open, according to an embodiment of the present invention.

[0025] Figure 7 This is a cross-sectional schematic diagram of the elastic arm when the first water outlet channel is open and the second water outlet channel is closed, according to an embodiment of the present invention.

[0026] Explanation of icon numbers:

[0027]

[0028]

[0029] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0032] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0035] In this invention, the descriptions of directions such as "up," "down," "front," "back," "left," and "right" are as follows: Figure 1 The directions shown are for reference only and are used to interpret the location. Figure 1 The relative positional relationship between the components in the shown posture is such that if the specific posture changes, the directional indication will also change accordingly.

[0036] This invention provides a filter and a smart toilet.

[0037] In one embodiment, such as Figures 1 to 3 As shown, the filter 100 includes a connector 10, a housing 20, and a scale-inhibiting structure 30. The connector 10 forms a connecting cavity 11, an inlet channel 12, a first outlet channel 13, and a second outlet channel 14. The connecting cavity 11 connects the inlet channel 12 and the second outlet channel 14. The housing 20 is connected to the connector 10 and forms a receiving cavity 21. The scale-inhibiting structure 30 includes a scale-inhibiting frame 31 and a one-way sleeve 32. The scale-inhibiting frame 31 is disposed in the receiving cavity 21 and forms an installation cavity 311. The installation cavity 311 connects the first outlet channel 13 and the receiving cavity 21. The one-way sleeve 32 is sleeved on the scale-inhibiting frame 31. A water passage gap 16 is formed between the one-way sleeve 32 and the cavity wall of the connecting cavity 11. When the second outlet channel 14 is open, the size of the water passage gap 16 is smaller than the size of the water passage gap 16 when the second outlet channel 14 is closed.

[0038] The inlet channel 12 and the second outlet channel 14 both extend in the left-right direction. The left end of the connecting cavity 11 is connected to the inlet channel 12, and the right end of the connecting cavity 11 is connected to the second outlet channel 14. The inlet channel 12 is used to connect to the municipal water pipe, and the second outlet channel 14 is used to connect to the flushing port to realize the flushing function. The first outlet channel 13 extends in the up-down direction and is used to connect to the washing port to realize the human body washing function. The upper end of the housing 20 is connected to the connector 10. The housing 20 forms a receiving cavity 21, which is used to accommodate the scale inhibitor structure 30. The receiving cavity 21 and the connecting cavity 11 are spaced apart in the up-down direction. The scale inhibitor frame 31 extends in the up-down direction and is disposed in the receiving cavity 21 of the housing 20. The scale inhibitor frame 31 is used to install the scale inhibitor, which is used to prevent scale from forming in the internal pipes or nozzles of the cleaner, thus preventing malfunctions and extending the service life of the cleaner. One end of the mounting cavity 311 is connected to the first water outlet channel 13, and the other end of the mounting cavity 311 is connected to the receiving cavity 21. The one-way sleeve 32 extends in the vertical direction and is sleeved on the outside of the scale inhibitor frame 31.

[0039] Please refer to the reference. Figure 3 and Figure 6 When the second water outlet channel 14 is opened and the first water outlet channel 13 is closed, water flows into the connecting cavity 11 through the water inlet channel 12. At this time, the water stored in the receiving cavity 21 tends to be drawn upward by the water flow, forming an upward water flow. The one-way sleeve 32 expands and deforms outward, reducing the size of the water passage gap 16 between the one-way sleeve 32 and the cavity wall of the connecting cavity 11, reducing the scale inhibitor passing through the second water outlet channel 14, and reducing the consumption of scale inhibitor during flushing.

[0040] Please refer to the reference. Figure 3 and Figure 7When the first water outlet channel 13 is open and the second water outlet channel 14 is closed, water flows into the connecting cavity 11 through the inlet channel 12 and flows downward along the connecting cavity 11. The one-way sleeve 32 contracts inward, increasing the size of the water passage gap 16 between the one-way sleeve 32 and the cavity wall of the connecting cavity 11. A large amount of water enters the mounting cavity 311, mixes with the scale inhibitor in the scale inhibitor rack 31, and then flows into the cleaner through the first water outlet channel 13. This invention, by setting the one-way sleeve 32, changes the size of the water passage gap 16, thereby reducing the amount of scale inhibitor passing through the water outlet channel and reducing the consumption of scale inhibitor during flushing.

[0041] The water inlet channel 12 is equipped with a copper shaft 121 and a nut 122 for connecting the water inlet pipe. The water inlet channel 12 is also equipped with a sealing gasket 123 to ensure a sealed connection between the water inlet channel 12 and the water inlet pipe, making the use of the water inlet channel 12 more convenient.

[0042] In one embodiment, please refer to the reference Figure 3 , Figure 6 and Figure 7 The one-way sleeve 32 includes a connected cylinder 322 and an elastic arm 321. The elastic arm 321 extends circumferentially along the cylinder 322 and moves closer to or further away from the cavity wall of the communicating cavity 11 to change the size of the water passage gap 16.

[0043] The cylinder 322 extends vertically, and the elastic arm 321 extends circumferentially along the cylinder 322. When the first water outlet channel 13 is open and the second water outlet channel 14 is closed, water flows into the connecting cavity 11 through the water inlet channel 12 and flows downward along the connecting cavity 11. The elastic arm 321 is squeezed and deformed by the water flow and contracts inward, causing the elastic arm 321 to move away from the cavity wall of the connecting cavity 11. The water passage gap 16 increases, and a large amount of water flows into the mounting cavity 311. The water flows and mixes with the scale inhibitor in the scale inhibitor frame 31, and then flows into the cleaner through the first water outlet channel 13.

[0044] When the second water outlet channel 14 is opened and the first water outlet channel 13 is closed, water flows into the connecting cavity 11 through the inlet channel 12. At this time, the water stored in the receiving cavity 21 tends to be drawn upward by the water flow, forming an upward water flow. The elastic arm 321 deforms under the action of the upward water flow and expands outward, so that the elastic arm 321 is close to the cavity wall of the connecting cavity 11, the water passage gap 16 is reduced, the scale inhibitor passes through the second water outlet channel 14, and the scale inhibitor is consumed during the flushing process.

[0045] In one embodiment, please refer to the reference Figure 3The elastic arm 321 is inclined downwards in a direction away from the cylinder 322, that is, the elastic arm 321 is inclined downwards in a direction away from the axis of the cylinder 322. When the first water outlet channel 13 is open and the second water outlet channel 14 is closed, the water flows downwards along the connecting cavity 11. The inclined elastic arm 321 is more easily squeezed and deformed by the water flow, shrinking inwards, so that the elastic arm 321 separates from the cavity wall of the connecting cavity 11, thereby increasing the water passage gap 16. The water flow mixes with the scale inhibitor in the mounting cavity 311. When the second water outlet channel 14 is open and the first water outlet channel 13 is closed, the water in the receiving cavity 21 tends to be drawn upwards by the water flow, forming an upward water flow. The inclined elastic arm 321 is more easily deformed under the action of the upward water flow, expanding outwards, so that the elastic arm 321 abuts against the cavity wall of the connecting cavity 11, thereby reducing the water passage gap 16 and reducing the scale inhibitor passing through the second water outlet channel 14.

[0046] In one embodiment, please refer to the reference Figure 3 The number of elastic arms 321 is at least two, and at least two elastic arms 321 are arranged at axial intervals along the one-way sleeve 32.

[0047] When the second water outlet channel 14 is open and the first water outlet channel 13 is closed, the blocking effect of the one-way sleeve 32 is enhanced by setting at least two elastic arms 321, further reducing the scale inhibitor passing through the second water outlet channel 14 and further reducing the consumption of scale inhibitor during flushing. The at least two elastic arms 321 are spaced apart along the axial direction of the one-way sleeve 32, that is, spaced apart along the vertical direction.

[0048] In other embodiments, the elastic arm 321 can also be replaced with other deformable and expandable structures that deform in different water flow directions to achieve the function of the elastic arm 321 changing the size of the water passage gap 16.

[0049] In one embodiment, please refer to the reference Figure 3 and Figure 4 The scale inhibitor frame 31 is provided with a stop protrusion 312 at one end near the first water outlet channel 13. The stop protrusion 312 is used to stop the one-way sleeve 32.

[0050] The scale inhibitor frame 31 has a stop protrusion 312 at its upper end near the first water outlet channel 13. The stop protrusion 312 extends away from the mounting cavity 311. When the second water outlet channel 14 is opened and the first water outlet channel 13 is closed, water flows into the connecting cavity 11 through the inlet channel 12. At this time, the water in the receiving cavity 21 tends to be drawn upward by the water flow, forming an upward water flow. The elastic arm 321 deforms under the action of the upward water flow. If the pressure of the upward water flow is large, the water flow may push the elastic arm 321 and the one-way sleeve 32 upward. By setting the stop protrusion 312 to stop the one-way sleeve 32, the one-way sleeve 32 is limited, preventing the one-way sleeve 32 from detaching from the scale inhibitor frame 31, making the one-way sleeve 32 more convenient to use.

[0051] In the preferred technical solution, a stop ring is also provided outside the scale inhibitor frame 31, and a fixing groove is formed between the stop ring and the stop protrusion 312, with the one-way sleeve 32 located in the fixing groove. By setting the stop ring and the stop protrusion 312 to cooperate to form a fixing groove, the position of the one-way sleeve 32 is fixed, preventing the one-way sleeve 32 from shifting, and making the use of the one-way sleeve 32 more convenient.

[0052] In one embodiment, please refer to the reference Figure 3 and Figure 4 The mounting cavity 311 is provided with a mounting ring 313 on its cavity wall. The filter 100 also includes a sealing assembly 40, which is pressed against the end of the first water outlet channel 13 and the mounting ring 313 to make the first water outlet channel 13 and the mounting cavity 311 sealed together.

[0053] The mounting ring 313 is disposed on the cavity wall of the mounting cavity 311, and the mounting ring 313 is located at the upper end of the scale inhibitor frame 31. The upper end of the sealing assembly 40 abuts against the first water outlet channel 13, and the lower end of the sealing assembly 40 abuts against the mounting ring 313, so that the first water outlet channel 13 and the mounting cavity 311 are sealed together, reducing the flow of scale inhibitor in the mounting cavity 311 into the second water outlet channel 14, and reducing the consumption of scale inhibitor during flushing.

[0054] In one embodiment, please refer to the reference Figure 3 and Figure 4 The mounting cavity 311 contains a scale inhibitor, and the scale inhibitor frame 31 is equipped with a filter screen (not shown). The filter 100 also includes a filter screen (not shown). The filter screen is located in the first water outlet channel 13 or in the mounting cavity 311. The filter screen and the filter screen are used to block the scale inhibitor.

[0055] A filter screen (not shown) is installed outside the scale inhibitor frame 31. The filter screen is located inside the first water outlet channel 13, or inside the mounting cavity 311. The filter screen and the filter itself are used to filter impurities in the water flow, preventing them from clogging the internal pipes of the cleaner and causing malfunctions, thus extending the service life of the cleaner. Furthermore, the filter screen and the filter itself are used to block the scale inhibitor, allowing it to be continuously released and dissolved, preventing it from flowing directly into the first water outlet channel 13 with the water flow, extending the lifespan of the scale inhibitor, and improving the scale inhibition performance of the filter 100.

[0056] Specifically, the filter screen is generally made of nylon mesh with a density of about 120 mesh and a mesh size of about 0.125 mm. The filter screen is detachably connected to the scale inhibitor frame 31. When too many impurities adhere to the filter screen and affect the water flow rate, the filter screen can be removed from the scale inhibitor frame 31 for cleaning, making the use of the filter screen more flexible and convenient.

[0057] Scale inhibitors can be made of materials such as FOF, which are slowly released into the water, causing crystal nucleus distortion in the small crystal nucleus stage of scale, thereby preventing scale from growing further.

[0058] Scale inhibitors can be packaged in bags or tubes. Each time the scale inhibitor is replaced, a bag or tube is replaced, which makes it convenient for users to add scale inhibitors and allows them to control the amount of scale inhibitors added.

[0059] Traditional tablet-type scale inhibitors initially have a large enough external surface area to ensure a fast release rate and good scale inhibition performance in the early stages. However, as the scale inhibitor is released and dissolved, the tablet volume decreases, and the external surface area decreases accordingly, thus slowing down the release rate and affecting the scale inhibition performance in the later stages. Therefore, in one embodiment, scale inhibitors with different release rates are made into a single tablet, with the faster-releasing scale inhibitor located inside the tablet and the slower-releasing scale inhibitor located on the outside. This ensures that the release rate of the scale inhibitor from a single tablet decreases slowly throughout its lifespan, thereby guaranteeing the overall scale inhibition lifespan of the filter 100.

[0060] In the preferred embodiment, the sealing assembly 40 includes a steel mesh sealing gasket 41 and two rubber sealing gaskets 42. The steel mesh sealing gasket 41 is located between the two rubber sealing gaskets 42. The steel mesh in the steel mesh sealing gasket 41 is the filter screen, which reduces the installation steps of the filter screen, improves assembly efficiency, and makes cleaning and replacement of the filter screen more convenient, making the use of the filter screen more flexible and convenient. The rubber sealing gaskets 42 have a self-sealing function, do not require periodic adjustment, have good sealing performance, and are simple in structure and easy to install.

[0061] In one embodiment, please refer to the reference Figure 2 and Figure 4 The filter 100 also includes a foam body 50, which is disposed within the mounting cavity 311.

[0062] Specifically, the foam body 50 is a foamed silicone body, produced using a silicone rubber foaming process, with sealed internal pores. During normal operation, water cannot enter the interior of the foamed silicone body. When the water inside the filter 100 freezes and expands, the foamed silicone body is compressed, thereby reducing the pressure on the filter 100 housing 20 due to freezing. This prevents the filter 100 from cracking due to the expanding ice when frozen. By incorporating the foam body 50 for freeze protection, the safety and reliability of the filter 100 are improved.

[0063] In one embodiment, please refer to the reference Figure 2 The connector 10 is detachably connected to the housing 20. This allows for easy removal of the housing 20 from the connector 10 for operations such as replacing the antiscalant, cleaning or replacing the filter screen, and replacing the one-way sleeve 32. By making the connector 10 detachably connected to the housing 20, the use of the filter 100 becomes more flexible and convenient.

[0064] Specifically, the connector 10 has a first threaded section, and the housing 20 has a second threaded section. The first threaded section and the second threaded section are threadedly connected. The threaded connection makes it easier to disassemble and install the connector 10 and the housing 20. In addition, the threaded connection has a self-locking function, which makes the connection between the connector 10 and the housing 20 tighter and more reliable.

[0065] In one embodiment, please refer to the reference Figure 2 The connector 10 is fitted with a sealing ring 15, which abuts against the wall of the receiving cavity 21 to seal the connector 10 and the housing 20.

[0066] The sealing ring 15 is sleeved on the outside of the connector 10 and abuts against the wall of the receiving cavity 21, so that the connector 10 and the housing 20 are sealed together. By setting the sealing ring 15, the sealing performance between the connector 10 and the housing 20 is improved, preventing the filter 100 from leaking and causing damage to other components, and extending the service life of the smart toilet.

[0067] Specifically, the outer wall of the connector 10 is formed with an installation groove, and the sealing ring 15 is located in the installation groove. By setting the installation groove, the sealing ring 15 is prevented from moving in the vertical direction, thus ensuring the sealing effect of the sealing ring 15 and extending the service life of the sealing ring 15.

[0068] The number of sealing rings 15 can be flexibly adjusted according to actual needs. There can be one, two, or more sealing rings 15. This invention does not limit the number of sealing rings 15. When there are multiple sealing rings 15, the multiple sealing rings 15 are spaced apart in the vertical direction.

[0069] In addition, the present invention also provides a smart toilet, which includes a main body and a filter 100 as described above. The specific structure of the filter 100 is as described in the above embodiments. Since the smart toilet adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0070] The main body has a washing port and a flushing port. The washing port is connected to the first water outlet channel 13, and the flushing port is connected to the second water outlet channel 14.

[0071] When the first water outlet channel 13 is opened and the second water outlet channel 14 is closed, water flows into the connecting cavity 11 through the water inlet channel 12 and flows downward along the connecting cavity 11. The one-way sleeve 32 contracts inward, and the size of the water passage gap 16 between the one-way sleeve 32 and the cavity wall of the connecting cavity 11 increases. A large amount of water flows into the installation cavity 311, mixes with the scale inhibitor in the scale inhibitor rack 31, and then flows into the cleaner through the first water outlet channel 13.

[0072] When the second water outlet channel 14 is opened and the first water outlet channel 13 is closed, water flows into the connecting cavity 11 through the inlet channel 12. At this time, the water stored in the receiving cavity 21 tends to be drawn upward by the water flow, forming an upward water flow. The one-way sleeve 32 expands and deforms outward, reducing the size of the water passage gap 16 between the one-way sleeve 32 and the cavity wall of the connecting cavity 11, reducing the amount of scale inhibitor passing through the second water outlet channel 14, and reducing the consumption of scale inhibitor during flushing. The water in the connecting cavity 11 flows out from the flushing port through the second water outlet channel 14 to achieve the flushing function.

[0073] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A filter, characterized in that, The filter includes: A connector having a connecting cavity, an inlet channel, a first outlet channel, and a second outlet channel, wherein the connecting cavity is connected between the inlet channel and the second outlet channel; A housing, which is connected to the connector, and the housing has a receiving cavity; The scale-inhibiting structure includes a scale-inhibiting frame and a one-way sleeve. The scale-inhibiting frame is disposed within the receiving cavity and has an installation cavity that connects the first water outlet channel to the receiving cavity. The one-way sleeve is sleeved outside the scale-inhibiting frame, and a water passage gap is formed between the one-way sleeve and the cavity wall of the connecting cavity. When the second water outlet channel is open, the size of the water passage gap is smaller than the size of the water passage gap when the second water outlet channel is closed. The one-way sleeve includes a connected cylinder and an elastic arm, the elastic arm extending circumferentially along the cylinder, and the elastic arm moving closer to or further away from the cavity wall of the communicating cavity to change the size of the water passage gap; The elastic arm is inclined downward in a direction away from the cylinder; The number of elastic arms is at least two, and the at least two elastic arms are spaced apart along the axial direction of the one-way sleeve.

2. The filter as claimed in claim 1, characterized in that, The scale inhibitor frame is provided with a stop protrusion at one end near the first water outlet channel, and the stop protrusion is used to stop the one-way sleeve.

3. The filter as described in claim 1, characterized in that, An installation ring is provided on the cavity wall of the installation cavity, and the filter further includes a sealing assembly. The sealing assembly is pressed against the end of the first water outlet channel and the installation ring to seal the first water outlet channel with the installation cavity.

4. The filter according to any one of claims 1 to 3, characterized in that, The mounting cavity is provided with a scale inhibitor, and the scale inhibitor frame is provided with a filter screen; the filter also includes a filter screen, which is disposed in the first water outlet channel or in the mounting cavity, and the filter screen and the filter screen are used to block the scale inhibitor.

5. The filter according to any one of claims 1 to 3, characterized in that, The filter also includes a foam body disposed within the mounting cavity.

6. The filter according to any one of claims 1 to 3, characterized in that, The connector is detachably connected to the housing; and / or The connector is fitted with a sealing ring, which abuts against the wall of the receiving cavity to seal the connector to the housing.

7. A smart toilet, characterized in that, The intelligent toilet includes a main body and a filter as described in any one of claims 1 to 6. The main body has a cleaning port and a flushing port. The cleaning port is connected to the first water outlet channel, and the flushing port is connected to the second water outlet channel.

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