Closestool self-cleaning system and intelligent closestool

Abstract

The closestool self-cleaning system comprises a cleaning structure and a flow guide structure, the cleaning structure comprises a cleaning head and a cleaning pipeline which are arranged on a flushing rod, and the cleaning head rotates around a connecting pipe through recoil force brought by water flow sprayed out of a cleaning opening. The flow guide structure comprises a first inclined guide face arranged on the ceramic base body and used for installing a seat ring, a second inclined guide face arranged on the upper surface of the seat ring, and a flow guide cover arranged on the peripheral side of the interior of a cover body of the toilet seat cover. According to the scheme, after the intelligent closestool is used every time, automatic, comprehensive and rapid self-cleaning operation can be carried out, cleaning personnel do not need to participate, the intelligent closestool can be applied to public places with large pedestrian flow, the structure is reasonable and ingenious, the cost is low, the maintenance period is kept consistent with that of an original intelligent closestool, and the maintenance difficulty is not additionally increased.

Description

Technical Field

[0001] This utility model relates to the field of intelligent bathroom technology, specifically to a toilet self-cleaning system and an intelligent toilet. Background Technology

[0002] Smart toilets, as everyday items that can greatly improve the quality of life, have been accepted by most users. A regular toilet includes a ceramic body, a seat ring, and a toilet seat cover. A smart toilet also includes a retractable washing rod that provides warm water washing. The front end of the washing rod has a water spray nozzle. In addition to the warm water washing function, it also has multiple functions such as seat ring heating, warm air drying, and sterilization.

[0003] In public places, especially in high-traffic areas such as hospitals, train stations, and airports, hygiene concerns regarding smart toilets are a major reason why users are reluctant to use them. While existing smart toilets have self-cleaning functions, they only clean the bottom part of the toilet bowl, the siphon pipe, and the inner wall of the bowl. They cannot perform a comprehensive cleaning. The seat ring and the area above the user, which come into direct contact with the skin, cannot be cleaned by the smart toilet's self-cleaning system, leaving behind contaminants, bacteria, and viruses. This requires cleaning staff to manually spray disinfectant and wipe the surfaces. In high-traffic public places, it's impossible to ensure thorough cleaning and disinfection after every use. This means the smart toilet will either be used under conditions of long-term contamination and cross-infection, or users will be reluctant to use it.

[0004] For smart toilets used in homes, urine stains caused by splashing urine and fecal stains caused by diarrhea, if not cleaned in time, can lead to odors on the upper part of the ceramic base and the seat due to contamination. These problems also need to be addressed.

[0005] Existing smart toilet technologies also include methods for cleaning the seat ring, such as adding guide rails and guide rail brushes to the ceramic substrate and adding water pipes to the toilet seat. While brushing the surface of the seat ring along the guide rails, water is sprayed at the same time. However, this method can only brush part of the surface of the seat ring and cannot clean the entire surface. On the one hand, the cleaning is not thorough, and on the other hand, the technical mechanism is too complicated, increasing costs and maintenance difficulties.

[0006] In view of this, the problem that existing smart toilets cannot completely clean the inside of the toilet, especially the seat, as well as the problems of complex structure, high cost, and difficult maintenance, has become the research topic to be solved by this utility model. Utility Model Content

[0007] The purpose of this invention is to provide a toilet self-cleaning system and a smart toilet.

[0008] To achieve the above objectives, the first aspect of this utility model proposes a toilet self-cleaning system for a smart toilet. The smart toilet includes a ceramic substrate, a seat ring, a toilet seat cover, and a flushing mechanism. The flushing mechanism includes a front-and-back adjustable flushing rod. Its innovation lies in:

[0009] The toilet self-cleaning system includes a cleaning structure and a flow guiding structure.

[0010] The cleaning structure includes a cleaning head and a cleaning pipe mounted on a rinsing rod. A connecting pipe is provided at the front end of the cleaning rod. The cleaning head is rotatably mounted on the connecting pipe. Multiple cleaning ports are symmetrically opened on the periphery of the cleaning head, inclined axially and circumferentially along the central axis of the connecting pipe. The cleaning ports are connected to the cleaning pipe through the connecting pipe. The cleaning head rotates around the connecting pipe due to the recoil force generated by the water flow sprayed out of the cleaning ports.

[0011] The flow guiding structure includes:

[0012] A first inclined guide surface is provided on the ceramic substrate for mounting the seat ring;

[0013] A second inclined guide surface is provided on the upper surface of the seat ring, and a support pad is provided on the lower surface of the seat ring to form a first cleaning gap with the ceramic substrate;

[0014] A flow guide shroud is provided on the inner periphery of the toilet seat cover. When the toilet seat cover is closed, the outer edge of the flow guide shroud is attached to the outer side of the first inclined guide surface of the ceramic substrate, and there is a second cleaning gap between the inner surface of the flow guide shroud and the seat ring.

[0015] The second aspect of this utility model provides a smart toilet, which includes the toilet self-cleaning system as described in the first aspect of this utility model.

[0016] The relevant contents of this utility model are explained as follows:

[0017] 1. The present invention addresses the problems of existing smart toilets, such as their inability to completely clean the toilet interior, especially the seat, and their complex mechanisms, high costs, and difficult maintenance. It innovatively designs a self-cleaning system for smart toilets and a smart toilet itself. This self-cleaning system includes a cleaning structure and a flow guiding structure. The cleaning structure includes a cleaning head and a cleaning pipe mounted on a flushing rod. The cleaning head is configured to rotate around the connecting pipe due to the recoil force generated by the water flow from the cleaning nozzle, thereby allowing the cleaning pipe to be opened... After activation, the flushing head rotates and sprays water while being adjusted forward and backward, covering the entire space under the toilet seat without any blind spots. The water-guiding structure consists of a ceramic base, a seat ring, a first inclined guide surface, a second inclined guide surface on the toilet seat, and a flow guide cover. The flow guide cover is located on the inner periphery of the toilet seat. When the toilet seat is closed, the outer edge of the flow guide cover fits against the outer side of the first inclined guide surface of the ceramic base, preventing water from flowing out and directing it into the toilet bowl. A second cleaning gap exists between the inner surface of the flow guide cover and the seat ring, allowing the flushing head to spray water. The water jet can be sprayed through the second cleaning gap to rinse the inner surface of the toilet seat's guide shroud and the upper surface of the seat ring. The second inclined guide surface on the upper surface of the seat ring guides the water sprayed onto the seat ring into the interior of the ceramic substrate. The support pad creates multiple first cleaning gaps between the seat ring and the ceramic substrate. The water jet from the cleaning head smoothly enters these first cleaning gaps to rinse the lower surface of the seat ring and the upper surface of the ceramic substrate. The first inclined guide surface on the ceramic substrate guides the water sprayed onto the ceramic substrate into the interior of the ceramic substrate, reducing water droplet residue. Through the above... The design of the cleaning and flow guiding structures enables the smart toilet to perform automatic, comprehensive, and rapid self-cleaning after each use, without the need for cleaning personnel. This allows it to be used in public places with high traffic. The structural improvements involve an integrated flow guiding structure that is integrated into the ceramic base, seat ring, and toilet seat. The cleaning structure is an improvement on the existing flushing mechanism, which does not add much extra cost. The structure is reasonable, ingenious, and low-cost. Moreover, the maintenance cycle is consistent with that of the original smart toilet, and there is no additional difficulty in maintenance.

[0018] 2. In the technical solution of the first aspect described above, a hydrophobic layer is coated on the upper part of the ceramic substrate, on each surface of the seat ring, and on the lower surface of the toilet seat cover. The hydrophobic layer can be made of existing materials such as nano-hydrophobic coatings or composite ceramic hydrophobic coatings, so that water left on the toilet surface after flushing can quickly slide off, thereby reducing the interval between each self-cleaning and avoiding excessively long waiting times.

[0019] 3. In the technical solution of the first aspect above, the cleaning head is a hemisphere, and the two, three, or four cleaning ports are symmetrically arranged around the outer circumference of the hemisphere. The hemispherical cleaning head reduces resistance during rotation, resulting in smoother rotation, a simpler and more aesthetically pleasing structure, and a more rational arrangement of the cleaning ports. This invention is not limited to this arrangement of the cleaning ports; the number can also be five, six, etc.

[0020] 4. In the technical solution of the first aspect described above, the cleaning port is an elongated opening arranged obliquely along the axial and circumferential directions of the connecting pipe's central axis on a hemisphere. Inside the hemisphere, there is a water-passing branch connected to the cleaning port, which in turn connects to the connecting pipe and the cleaning pipe. This allows the water jet from the cleaning port to form a gradually expanding fan-shaped water curtain, further increasing the cleaning range. In cases where cleaning is already comprehensive, this increases the number of times the area is flushed, thereby improving the cleaning effect. Furthermore, the connecting pipe has a downward-sloping water outlet on its periphery, and this outlet can be positioned facing the downward-sloping water-passing branch.

[0021] 5. In the technical solution of the first aspect described above, a ball bearing is provided at the rotating part of the cleaning head and the connecting pipe of the hemispherical structure. This further reduces the frictional force of the cleaning head during self-rotation, reduces frictional wear, and thus improves its service life. In this solution, an installation groove can be provided at the location where the ball bearing is installed on the cleaning head and the connecting pipe to allow the ball bearing to hold the cleaning head in place and prevent it from falling off. Alternatively, a snap-fit ​​or locking mechanism can be used to prevent the cleaning head from falling off. Furthermore, a sealing ring, which can be an O-ring rubber seal, is provided at the rotating part of the cleaning head and the connecting pipe to provide sufficient sealing and prevent water leakage from below the rotating part of the cleaning head and the connecting pipe.

[0022] 6. In the technical solution of the first aspect above, the horizontal downward tilt angle of the first inclined guide surface and the second inclined guide surface is in the range of 10° to 30°, so as to take into account the structural design of the toilet, the efficiency of guiding water flow and the user experience.

[0023] 7. In the technical solution of the first aspect described above, the outer edge of the upper surface of the ceramic substrate has a contact surface that fits against the outer edge of the guide shield of the toilet seat. This contact surface is configured in any of the following ways: the contact surface is horizontally positioned; the inclination angle of the contact surface is less than that of the first inclined guide surface; or the inclination angle of the contact surface is the same as that of the first inclined guide surface. This further prevents water from flowing outwards, keeping the outside of the smart toilet clean and hygienic.

[0024] 8. In the technical solution of the first aspect above, the vertical projection of the guide shroud at least covers the seat ring, the guide shroud is generally arc-shaped, and the inner surface of the guide shroud is provided with multiple circular pits for rebounding water flow. When the water flow from the cleaning head is directed towards the second cleaning gap, the water flow impacts and rebounds onto the seat ring through the circular pits, resulting in better cleaning effect and coverage of a larger impact and washing area. Furthermore, during the self-rotation of the cleaning head, the impacting water flow can rebound to any corner, thus eliminating any dead angles.

[0025] 9. In the technical solution of the first aspect above, when assembling the cleaning structure, the cleaning head and the connecting pipe can be assembled, and then the lower end of the connecting pipe can be wrapped with PTFE tape and screwed into the flushing rod, making replacement convenient and quick.

[0026] 10. In the technical solution of the second aspect above, the smart toilet further includes at least one of the following: a heating module disposed on the seat ring; a negative pressure module disposed in the ceramic substrate; and a hot air module disposed in the ceramic substrate. This allows for rapid drying during or after cleaning of the ceramic substrate, seat ring, and toilet seat, either by the heating module built into the seat ring, or by accelerating the water flow from the first and second inclined guide surfaces using the negative pressure module, or by rapidly drying using the hot air module. This further reduces the interval between rinses, thus controlling the cleaning process within two minutes and avoiding excessively long waiting times.

[0027] 11. In this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., 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, 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] 12. In this utility model, the terms “center”, “upper”, “lower”, “bottom”, “inner”, “outer”, etc., indicate the orientation or positional relationship based on the orientation or positional assembly relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not 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 this application.

[0029] 13. In addition, the term "and / or" in this application means that it includes three parallel options. For example, "A and / or B" includes option A, option B, or an option that satisfies both A and B.

[0030] Due to the application of the above solution, this utility model has the following advantages and effects compared with the prior art:

[0031] 1. The above-mentioned solution of this utility model addresses the problems of existing smart toilets being unable to completely clean the toilet interior, especially the seat ring, and having complex mechanisms, high costs, and difficult maintenance. It innovatively designs a self-cleaning system for smart toilets and a smart toilet itself. This self-cleaning system includes a cleaning structure and a flow guiding structure. The cleaning structure includes a cleaning head and a cleaning pipe mounted on a flushing rod. The cleaning head is configured to rotate around the connecting pipe due to the recoil force generated by the water jet from the cleaning nozzle. Thus, when the cleaning pipe is opened, the cleaning head rotates and sprays water while being adjusted back and forth by the flushing rod, covering the entire space under the toilet seat without any blind spots.

[0032] 2. In the above-mentioned solution of this utility model, the flow guiding structure is jointly composed of a ceramic substrate, a seat ring, a first inclined guide surface, a second inclined guide surface, and a flow guide cover on the toilet seat. A flow guide cover is provided on the inner periphery of the toilet seat. When the toilet seat is closed, the outer edge of the flow guide cover is attached to the outer side of the first inclined guide surface of the ceramic substrate, preventing water from flowing outwards and allowing it to flow only into the toilet. A second cleaning gap exists between the inner surface of the flow guide cover and the seat ring. Water sprayed from the cleaning head can pass through this second cleaning gap to rinse the inner surface of the flow guide cover and the upper surface of the seat ring. The second inclined guide surface on the upper surface of the seat ring guides the water sprayed onto the seat ring into the interior of the ceramic substrate. A support pad creates multiple first cleaning gaps between the seat ring and the ceramic substrate. Water sprayed from the cleaning head smoothly enters these first cleaning gaps to rinse the lower surface of the seat ring and the upper surface of the ceramic substrate. The first inclined guide surface on the ceramic substrate guides the water sprayed onto the ceramic substrate into the interior of the ceramic substrate, reducing water droplet residue.

[0033] 3. In summary, through the design of the above cleaning and flow guiding structures, the smart toilet can perform automatic, comprehensive, and rapid self-cleaning after each use, without the need for cleaning personnel. It can be applied in public places with high traffic. In terms of the structural improvements involved, the flow guiding structure is integrated into the ceramic base, seat ring, and toilet seat. The cleaning structure is an improvement on the original flushing mechanism, which will not increase the cost significantly. Moreover, the maintenance cycle remains the same as that of the original smart toilet, and there is no additional difficulty in maintenance. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the smart toilet according to an embodiment of the present utility model;

[0035] Figure 2This is a cross-sectional schematic diagram of the smart toilet in the open state according to an embodiment of the present invention;

[0036] Figure 3 This is a cross-sectional schematic diagram of the smart toilet in the closed state according to an embodiment of the present invention;

[0037] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0038] Figure 5 This is a schematic diagram of the assembly of the flushing rod, cleaning head, and connecting pipe in an embodiment of this utility model;

[0039] Figure 6 This is a schematic diagram of the assembly of the cleaning head and connecting pipe in an embodiment of this utility model;

[0040] Figure 7 This is a schematic diagram of a cleaning head structure with two cleaning ports in an embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of a cleaning head structure with three cleaning ports in an embodiment of the present invention;

[0042] Figure 9 This is a schematic diagram of the cleaning head with three cleaning ports and the rinsing rod in an embodiment of the present invention.

[0043] Figure 10 This is a schematic diagram showing the water flow from the cleaning head impacting the circular pit and then rebounding in an embodiment of this utility model.

[0044] The parts shown in the above attached diagram are illustrated below:

[0045] 1. Ceramic matrix

[0046] 11 First inclined guide surface

[0047] 12 bonding surfaces

[0048] 2 seat rings

[0049] 20 First cleaning interval

[0050] 21 Second inclined guide surface

[0051] 22 Support pads

[0052] 3. Toilet seat cover

[0053] 30 Second cleaning interval

[0054] 31. Radiator fairing

[0055] 311 Circular Pit

[0056] 4. Flushing rod

[0057] 41. Cleaning pipes

[0058] 5. Cleaning head

[0059] 51 Cleaning port

[0060] 52 Water supply branch road

[0061] 6 Connecting pipes

[0062] 61. Water outlet

[0063] 7 Ball bearings

[0064] 8. Sealing ring. Detailed Implementation

[0065] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0066] This utility model addresses the problems of existing smart toilets being unable to completely clean the toilet interior, especially the seat, and having complex mechanisms, high costs, and difficult maintenance. It innovatively designs a self-cleaning system for smart toilets and a smart toilet that enables the smart toilet to perform automatic, comprehensive, and rapid self-cleaning after each use.

[0067] Example 1, as shown in the appendix Figures 1 to 10 As shown, Embodiment 1 of this utility model discloses a toilet self-cleaning system for self-cleaning a smart toilet. The smart toilet includes a ceramic substrate 1, a seat ring 2, a toilet seat cover 3, and a flushing mechanism. The flushing mechanism includes a flushing rod 4 that can be adjusted forward and backward.

[0068] The toilet self-cleaning system includes a cleaning structure and a flow guiding structure.

[0069] The cleaning structure includes a cleaning head 5 and a cleaning pipe 41 mounted on a rinsing rod 4. A connecting pipe 6 is provided at the front end of the cleaning rod. The cleaning head 5 is rotatably mounted on the connecting pipe 6. Multiple cleaning ports 51 are symmetrically opened on the periphery of the cleaning head 5, inclined axially and circumferentially along the central axis of the connecting pipe 6. The cleaning ports 51 are connected to the cleaning pipe 41 through the connecting pipe 6. The cleaning head 5 rotates around the connecting pipe 6 due to the recoil force generated by the water flow sprayed out of the cleaning ports 51.

[0070] The flow guiding structure includes:

[0071] A first inclined guide surface 11 is provided on the ceramic substrate 1 for mounting the seat ring 2;

[0072] A second inclined guide surface 21 is provided on the upper surface of the seat ring 2, and a support pad 22 is provided on the lower surface of the seat ring 2 to form a first cleaning gap 20 with the ceramic substrate 1;

[0073] A flow guide 31 is provided on the inner periphery of the toilet seat cover 3. When the toilet seat cover 3 is closed, the outer edge of the flow guide 31 is attached to the outer side of the first inclined guide surface 11 of the ceramic substrate 1. The inner surface of the flow guide 31 has a second cleaning gap 30 between it and the seat ring 2.

[0074] In the first embodiment of this utility model, the purpose of the utility model is mainly achieved through the following aspects.

[0075] Firstly, as Figure 5 , Figure 6 As shown, the cleaning structure includes a cleaning head 5 and a cleaning pipe 41 mounted on the flushing rod 4. The cleaning head 5 is configured to rotate around the connecting pipe 6 by the recoil force generated by the water flow sprayed out of the cleaning port 51. Thus, when the cleaning pipe 41 is opened, the cleaning head 5 rotates and sprays water to flush under the drive of the back-and-forth adjustment of the flushing rod 4. The flushing range can cover all the space under the toilet seat 3 without dead angles.

[0076] Secondly, as Figure 4 As shown, the flow guiding structure is jointly composed of a ceramic substrate 1, a seat ring 2, a first inclined guide surface 11, a second inclined guide surface 21, and a flow guide shroud 31 on the toilet seat 3. The flow guide shroud 31 is located on the inner periphery of the toilet seat 3. When the toilet seat 3 is closed, the outer edge of the flow guide shroud 31 is attached to the outer side of the first inclined guide surface 11 of the ceramic substrate 1, preventing water from flowing outwards and ensuring it flows only into the toilet bowl. A second cleaning gap 30 exists between the inner surface of the flow guide shroud 31 and the seat ring 2, allowing water sprayed from the cleaning head 5 to flush the flow guide surface of the toilet seat 3 through this second cleaning gap 30. The inner surface of the flow cover 31 and the upper surface of the seat ring 2, and the second inclined guide surface 21 on the upper surface of the seat ring 2, can guide the water sprayed on the seat ring 2 into the interior of the ceramic substrate 1. The support pad 22 makes multiple first cleaning gaps 20 formed between the seat ring 2 and the ceramic substrate 1. The water sprayed by the cleaning head 5 smoothly enters the first cleaning gaps 20 to rinse the lower surface of the seat ring 2 and the upper surface of the ceramic substrate 1. The first inclined guide surface 11 set on the ceramic substrate 1 can guide the water sprayed on the ceramic substrate 1 into the interior of the ceramic substrate 1, reducing water droplet residue.

[0077] Through the design of the above cleaning and flow guiding structures, the smart toilet can perform automatic, comprehensive and rapid self-cleaning after each use, without the need for cleaning personnel. It can be applied in public places with high traffic. In terms of the structural improvement design, the flow guiding structure is integrated into the ceramic base 1, seat ring 2 and toilet seat 3. The cleaning structure is an improvement on the original flushing mechanism, which will not increase the cost too much. Moreover, the maintenance cycle is consistent with the original smart toilet, and there will be no additional maintenance difficulty.

[0078] In another embodiment of this utility model, a hydrophobic layer is coated on the upper part of the interior of the ceramic substrate 1, on each surface of the seat ring 2, and on the lower surface of the toilet seat cover 3. The hydrophobic layer can be made of existing materials such as nano-hydrophobic coatings or composite ceramic hydrophobic coatings, so that water left on the toilet surface after flushing can quickly slide off, thereby reducing the interval between each self-cleaning and avoiding excessively long waiting times.

[0079] In another embodiment of the present invention, such as Figure 7 , Figure 8 , Figure 9 As shown, the cleaning head 5 is a hemisphere, and the two, three, or four cleaning ports 51 are symmetrically arranged around the outer circumference of the hemisphere. The hemispherical cleaning head 5 reduces resistance during rotation, resulting in smoother rotation, a simpler and more aesthetically pleasing structure, and a more rational arrangement of the cleaning ports 51. This invention is not limited to the arrangement of the cleaning ports 51; the number can also be five, six, etc.

[0080] In other solutions of Embodiment 1 of this utility model, such as Figure 7 , Figure 8 , Figure 9 As shown, the cleaning port 51 is an elongated opening arranged obliquely along the axial and circumferential directions of the connecting pipe 6 on a hemisphere. Inside the hemisphere, there is a water passage 52 connected to the cleaning port 51, which in turn connects to the connecting pipe 6 and the cleaning pipe 41. This allows the water jet from the cleaning port 51 to form a gradually expanding fan-shaped water curtain, further expanding the cleaning range. In addition to the already comprehensive cleaning coverage, this increases the number of times the area is flushed, thereby improving the cleaning effect. Furthermore, the connecting pipe 6 has a downward-sloping water outlet 61 on its periphery, and the outlet 61 can be positioned facing the downward-sloping water passage 52.

[0081] In another embodiment of the present utility model, such as Figure 6As shown, a ball bearing 7 is provided at the rotating part of the hemispherical cleaning head 5 and the connecting pipe 6. This further reduces the friction of the cleaning head 5 during self-rotation, reduces frictional wear, and thus improves its service life. In this design, an installation groove can be made at the location where the ball bearing 7 is installed on the cleaning head 5 and the connecting pipe 6 to allow the ball bearing 7 to hold the cleaning head 5 in place and prevent it from falling off. Alternatively, a snap-fit ​​or locking mechanism can be used to prevent the cleaning head 5 from falling off. In addition, a sealing ring 8 is provided at the rotating part of the cleaning head 5 and the connecting pipe 6. The sealing ring 8 can be an O-ring rubber sealing ring 8 to provide sufficient sealing effect and prevent water from leaking out from below the rotating part of the cleaning head 5 and the connecting pipe 6.

[0082] In other embodiments of this utility model, the horizontal downward tilt angle of the first inclined guide surface 11 and the second inclined guide surface 21 is in the range of 10° to 30°, so as to take into account the structural design of the toilet, the efficiency of guiding water flow, and the user experience.

[0083] In another embodiment of the present invention, such as Figure 3 , Figure 4 As shown, the outer edge of the upper surface of the ceramic substrate 1 has a contact surface 12 that fits against the outer edge of the guide shield 31 of the toilet seat cover 3. This contact surface 12 is configured in any of the following ways: the contact surface 12 is horizontally positioned; the inclination angle of the contact surface 12 is less than that of the first inclined guide surface 11; or the inclination angle of the contact surface 12 is the same as that of the first inclined guide surface 11. This further prevents water from flowing outwards, keeping the outside of the smart toilet clean and hygienic.

[0084] In another embodiment of the present utility model, such as Figure 4 As shown, the vertical projection of the flow guide 31 at least covers the seat ring 2. The flow guide 31 is generally arc-shaped, and the inner surface of the flow guide 31 is provided with multiple circular pits 311 for deflecting water flow (see...). Figure 10 ).like Figure 10 As shown, when the water flow from the cleaning head 5 is directed toward the second cleaning gap 30, the water flow impacts and bounces off the seat ring 2 through the circular pit 311, resulting in a better cleaning effect and covering a larger impact and washing area. Furthermore, during the self-rotation of the cleaning head 5, the impact water flow can bounce to any corner, thus eliminating any dead corners.

[0085] Embodiment 2: Embodiment 2 of this utility model proposes an intelligent toilet, which includes the toilet self-cleaning system as described in the first aspect of this utility model.

[0086] In another embodiment of the present invention, the smart toilet further includes at least one of the following:

[0087] Heating module mounted on seat ring 2;

[0088] A negative pressure module is installed within the ceramic substrate 1;

[0089] A hot air module is installed inside the ceramic substrate 1.

[0090] In this way, during the cleaning of the ceramic substrate 1, seat ring 2, and toilet seat 3, or after cleaning, the heating module of the seat ring 2 can quickly dry them, or the negative pressure module can accelerate the water flow from the first inclined guide surface 11 and the second inclined guide surface 21, or the hot air module can quickly dry them, thereby further reducing the interval between rinsing, so that the cleaning process is controlled within two minutes and the waiting time is avoided.

[0091] The embodiments of this utility model also have the following variations:

[0092] 1. In this embodiment of the present invention, a hydrophobic layer is coated on the upper part inside the ceramic substrate 1, on each surface of the seat ring 2, and on the lower surface of the toilet seat cover 3. The hydrophobic layer can also be coated on both the upper and lower parts inside the ceramic substrate 1. The hydrophobic layer can be made of existing materials such as nano-hydrophobic coatings and composite ceramic hydrophobic coatings. The present invention is not limited to these, and can also be other existing hydrophobic coatings.

[0093] 2. In this embodiment of the utility model, the cleaning head 5 is a hemisphere, but it can also be a cube, a triangle, a trapezoid, etc.; the arrangement of the cleaning ports 51 is not limited to this, and the number can be two, three or four, or even five or six, etc.

[0094] 3. In this embodiment of the present invention, the horizontal downward tilt angle of the first inclined guide surface 11 and the second inclined guide surface 21 is in the range of 10° to 30°, for example, 10°, 15°, 20°, 25°, 30°, etc., or it can be 8°, 35°, etc.

[0095] 4. In this embodiment of the utility model, the inner surface of the flow guide shroud 31 is provided with a plurality of circular pits 311 for rebounding water flow, which can be circular, elliptical or other smooth curved surface shapes.

[0096] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A toilet self-cleaning system for self-cleaning of a smart toilet, the smart toilet comprising a ceramic base body (1), a seat ring (2), a toilet cover (3), a flushing mechanism comprising a front-back adjustable flushing rod (4), characterized in that: the toilet self-cleaning system comprises a cleaning structure and a flow guiding structure; the cleaning structure comprises a cleaning head (5) and a cleaning pipeline (41) provided on the flushing rod (4), the front end of the flushing rod (4) is provided with a connecting pipe (6), the cleaning head (5) is rotatably installed on the connecting pipe (6), a plurality of cleaning ports (51) are symmetrically formed on the circumferential side of the cleaning head (5), the cleaning ports (51) are communicated with the cleaning pipeline (41) through the connecting pipe (6), and the cleaning head (5) rotates around the connecting pipe (6) through the backwash force caused by water flow sprayed through the cleaning ports (51); the flow guiding structure comprises: a first inclined surface (11) provided on the ceramic base body (1) for mounting the seat ring (2); a second inclined surface (21) provided on the upper surface of the seat ring (2), a plurality of first cleaning gaps (20) are formed between the seat ring (2) and the ceramic base body (1) by a support pad (22) provided on the lower surface of the seat ring (2) and in contact with the ceramic base body (1); a flow guiding cover (31) provided on the inner circumferential side of the cover body of the toilet cover (3), in the closed state of the toilet cover (3), the outer edge of the flow guiding cover (31) is attached to the outside of the first inclined surface (11) of the ceramic base body (1), and the inner surface of the flow guiding cover (31) has a second cleaning gap (30) with the seat ring (2); a hydrophobic layer is coated on the upper part inside the ceramic base body (1), each surface of the seat ring (2) and the lower surface of the toilet cover (3); the cleaning head (5) is a hemisphere, two, three or four cleaning ports (51) are symmetrically arranged around the outer circumferential surface of the hemisphere, and the cleaning ports (51) are inclined in the axial and circumferential directions of the central axis of the connecting pipe (6); the cleaning port (51) is an elongated opening arranged on the hemisphere and inclined in the axial and circumferential directions of the central axis of the connecting pipe (6), and has a water passage branch (52) communicated with the cleaning port (51) in the interior of the hemisphere, and the water passage branch (52) is communicated to the connecting pipe (6) and the cleaning pipeline (41); a ball bearing (7) is arranged at the rotating position of the cleaning head (5) and the connecting pipe (6); the horizontal downward inclination angle of the first inclined surface (11) and the second inclined surface (21) ranges from 10° to 30°; the outer edge of the upper surface of the ceramic base body (1) has an attachment surface (12) attached to the outer edge of the flow guiding cover (31) of the toilet cover (3), and the attachment surface (12) is arranged in any one of the following manners: the attachment surface (12) is horizontally arranged; the inclination angle of the attachment surface (12) is smaller than that of the first inclined surface (11); and the inclination angle of the attachment surface (12) is the same as that of the first inclined surface (11). ​ ​ ​ ​ ​ ​ 2. The toilet self-cleaning system according to claim 1, wherein: ​ 3. The toilet self-cleaning system of claim 1, wherein: ​ 4. The toilet self-cleaning system according to claim 3, wherein: ​ 5. The toilet self-cleaning system according to claim 3, wherein: ​ 6. The toilet self-cleaning system of claim 1, wherein: ​ 7. The toilet self-cleaning system of claim 1, wherein: ​ ​ ​ ​ 8. The toilet self-cleaning system according to claim 1, wherein: The vertical projection of the deflector (31) covers at least the seat ring (2), the deflector (31) is arc-shaped as a whole, and the inner side surface of the deflector (31) is provided with a plurality of circular pits (311) for rebounding water flow.

9. A smart toilet, characterized by: The intelligent toilet comprises the toilet self-cleaning system according to any one of claims 1 to 8.

10. The intelligent toilet according to claim 9, characterized in that, The intelligent toilet further comprises at least one of: a heating module arranged on the seat ring (2); a negative pressure module arranged in the ceramic base body (1); a hot air module arranged in the ceramic base body (1).

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