Sealing structure of self-cleaning closestool, self-cleaning closestool and control method

Abstract

The invention belongs to the technical field of household equipment, and discloses a sealing structure of a self-cleaning closestool, the self-cleaning closestool and a control method.The sealing structure of the self-cleaning closestool comprises a sealing piece, a driving mechanism and a controller, the sealing piece is provided with an air cavity and installed on a closestool cover or a closestool body, and the driving mechanism is connected with the air cavity through an air inlet valve; the controller is used for adjusting the pressure in the air cavity and electrically connected with the air inlet valve and the driving mechanism. When the self-cleaning closestool runs a self-cleaning program, the controller starts the driving mechanism after receiving a control instruction from master control of closestool cleaning, and the driving mechanism injects gas into the gas cavity of the sealing piece, so that the volume of the sealing piece is expanded, the sealing piece is tightly attached to the surface of the closestool cover and the surface of the closestool body, and strong sealing is achieved. After cleaning is completed and drying and other steps are carried out, the driving mechanism can slowly release air in the air cavity, so that the pressure of the internal space is reduced, the sealing piece is restored to the initial shape and the friction force state, and normal opening and closing of the toilet lid are not interfered.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to a sealing structure, a self-cleaning toilet, and a control method thereof. Background Technology

[0002] In the design of self-cleaning toilets, a sealing device is needed between the toilet seat and the bowl to prevent water from overflowing during cleaning. However, to ensure a good seal during cleaning while also ensuring that the toilet seat can be opened and closed normally without affecting friction after cleaning, existing toilet seals are usually fixed in structure and performance. They cannot enhance the seal during cleaning and restore the original state after cleaning, which can easily lead to water leakage during cleaning or affect the normal use of the toilet seat after cleaning, such as difficulty in opening and closing or the continued impact of the sealing effect causing the toilet seat to not close tightly. Summary of the Invention

[0003] The first objective of this invention is to provide a sealing structure for a self-cleaning toilet that enhances the sealing effect during cleaning to prevent water overflow, and restores the original friction after cleaning without affecting the normal opening and closing of the toilet seat.

[0004] The second objective of this invention is to provide a self-cleaning toilet that can automatically adjust the sealing performance of the sealing components according to the working state, thereby enhancing the sealing effect during the cleaning process to prevent water overflow, and restoring the original friction after cleaning without affecting the normal opening and closing of the toilet seat.

[0005] The third objective of this invention is to provide a control method for a self-cleaning toilet, which can enhance the sealing effect during the cleaning process to prevent water overflow, and restore the original friction after cleaning without affecting the normal opening and closing of the toilet seat.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This invention discloses a sealing structure for a self-cleaning toilet, comprising: a sealing element having an air chamber, and the sealing element being installed on a toilet seat or toilet bowl; a driving mechanism connected to the air chamber via an air inlet valve for adjusting the pressure within the air chamber; and a controller electrically connected to the air inlet valve and the driving mechanism; wherein: the sealing element has a pressure-increasing state, a pressure-holding state, and a pressure-releasing state; in the pressure-increasing state, the driving mechanism increases the pressure within the air chamber; in the pressure-holding state, the pressure within the air chamber is maintained at a preset pressure, so that the sealing element seals the mating gap between the toilet seat and the toilet bowl; and in the pressure-releasing state, the pressure within the air chamber decreases.

[0008] In some embodiments, the sealing structure of the self-cleaning toilet further includes a pressure sensor installed in the air chamber and used to detect the pressure inside the air chamber. The pressure sensor is electrically connected to the controller.

[0009] In some embodiments, the sealing structure of the self-cleaning toilet further includes an exhaust valve connected to the exhaust port of the air chamber.

[0010] In some embodiments, the drive mechanism includes an air pump or a piston mechanism; or the drive mechanism includes an air pump and a piston mechanism, wherein the air pump and the piston mechanism are switchably connected to the air chamber.

[0011] In some embodiments, the air cavity is provided with an elastic support structure, which assists in the deformation of the seal when the pressure changes.

[0012] The present invention also discloses a self-cleaning toilet, including a toilet seat, a bowl, and a sealing structure of the self-cleaning toilet described above, wherein the sealing element of the sealing structure of the self-cleaning toilet is installed on the toilet seat or the bowl.

[0013] In some embodiments, notches are provided on the opposite sides of the bucket body, and a first sealing edge and a second sealing edge are provided on the toilet lid. The first sealing edge, the second sealing edge, the side wall and the bottom wall of the notch constitute a receiving space for installing the sealing element. When the self-cleaning toilet performs self-cleaning, the sealing element seals the entire receiving space to isolate the receiving space from the external environment.

[0014] In some embodiments, the seal is connected to the first sealing edge and / or the first sealing edge; or, the seal is connected to the sidewall and / or bottom wall of the notch.

[0015] This invention also discloses a control method for the self-cleaning toilet described above, comprising the following steps: placing the toilet lid on the toilet bowl and starting the self-cleaning program; inflating the air chamber of the sealing element by a drive mechanism, stopping inflation when the air pressure in the air chamber reaches a first preset pressure; during the self-cleaning program, detecting the air pressure in the air chamber at a preset sampling frequency, restarting the drive mechanism to replenish the pressure in the air chamber when the air pressure in the air chamber is lower than a second preset pressure; after the self-cleaning program ends, depressurizing the air chamber, stopping depressurization when the air pressure in the air chamber reaches the working pressure.

[0016] In some embodiments, when the air chamber is being inflated, if the air pressure inside the air chamber is higher than the maximum preset pressure, the drive mechanism stops working and the air chamber is depressurized.

[0017] The beneficial effects of the sealing structure of the self-cleaning toilet of the present invention are as follows: During actual operation, when the toilet lid is placed on the toilet bowl and the self-cleaning toilet is running its self-cleaning program, the controller receives a control command from the overall control of the cleaning toilet and activates the drive mechanism. The drive mechanism injects gas into the air chamber of the sealing element, increasing the internal pressure and causing the sealing element to expand, tightly adhering to the surfaces of the toilet lid and the toilet bowl, achieving a strong seal. After cleaning is completed and drying is performed, the drive mechanism slowly releases the gas from the air chamber, reducing the internal pressure and restoring the sealing element to its initial shape and friction state, without interfering with the normal opening and closing of the toilet lid.

[0018] The advantages of the self-cleaning toilet of the present invention are as follows: Due to the sealing structure of the self-cleaning toilet described above, the self-cleaning toilet can automatically adjust the sealing performance of the sealing element according to the working state, thereby enhancing the sealing effect during the cleaning process to prevent water from overflowing, and restoring the original friction after cleaning without affecting the normal opening and closing of the toilet seat.

[0019] The beneficial effects of the toilet cleaning control method of the present invention are as follows: During actual operation, when the toilet lid is placed on the toilet bowl and the self-cleaning toilet is running its self-cleaning program, the drive mechanism injects gas into the air chamber of the sealing element, increasing the internal pressure and causing the sealing element to expand, tightly adhering to the surfaces of the toilet lid and the toilet bowl, achieving a strong seal. After cleaning is completed and drying is performed, the drive mechanism can slowly release the gas in the air chamber, reducing the internal pressure and restoring the sealing element to its initial shape and friction state, without interfering with the normal opening and closing of the toilet lid.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the sealing structure of the self-cleaning toilet according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of a self-cleaning toilet according to an embodiment of the present invention;

[0023] Figure 3 This is a partial structural diagram of the self-cleaning toilet according to an embodiment of the present invention under normal sealing conditions;

[0024] Figure 4 This is a partial structural diagram of the self-cleaning toilet according to an embodiment of the present invention in the state of seal expansion;

[0025] Figure label:

[0026] 100. Sealing structure; 110. Seal; 120. Drive mechanism; 130. Intake valve; 140. Exhaust valve; 150. Controller;

[0027] 200. Toilet seat; 210. First sealing edge; 220. Second sealing edge.

[0028] 300. Barrel body; 310. Notch. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0030] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. Furthermore, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0032] This invention discloses a sealing structure 100 for a self-cleaning toilet (hereinafter referred to as sealing structure 100 for ease of description), see reference. Figure 1As shown, the sealing structure 100 includes a sealing element 110, a drive mechanism 120, and a controller 150. The sealing element 110 has an air chamber and is mounted on the toilet seat 200 or the toilet bowl 300. The drive mechanism 120 is connected to the air chamber via an air inlet valve 130 to regulate the pressure within the air chamber. The controller 150 is electrically connected to the air inlet valve 130 and the drive mechanism 120. The sealing element 110 has a pressure-increasing state, a pressure-holding state, and a pressure-releasing state. In the pressure-increasing state, the drive mechanism 120 increases the pressure in the air chamber. In the pressure-holding state, the pressure in the air chamber is maintained at a preset pressure so that the sealing element 110 seals the mating gap between the toilet seat 200 and the toilet bowl 300. In the pressure-releasing state, the pressure in the air chamber decreases.

[0033] Understandably, during actual operation, when the toilet seat 200 is placed on the bowl 300 and the self-cleaning toilet is running its self-cleaning program, the controller 150 receives a control command from the overall control of the cleaning toilet and activates the drive mechanism 120. The drive mechanism 120 injects gas into the air chamber of the seal 110, increasing the internal pressure and causing the seal 110 to expand, tightly adhering to the surfaces of the toilet seat 200 and the bowl 300, achieving a strong seal. After cleaning is complete and drying is performed, the drive mechanism 120 slowly releases the gas from the air chamber, reducing the internal pressure, and the seal 110 returns to its initial shape and friction state, without interfering with the normal opening and closing of the toilet seat 200.

[0034] Optionally, the inner wall of the air chamber of the seal 110 is made of a flexible material with good sealing performance, such as rubber, which can withstand certain pressure changes and maintain a seal.

[0035] Optionally, the sealing structure 100 also includes a pressure sensor installed inside the air chamber to detect the pressure inside the air chamber. The pressure sensor is electrically connected to the controller 150. It is understood that during actual operation, if the pressure inside the air chamber is too low, the expansion degree of the seal 110 will be insufficient, and the sealing effect will be compromised. If the pressure inside the air chamber is too high, the seal 110 may be damaged. In this embodiment, by setting a pressure sensor inside the air chamber, the pressure sensor can detect the pressure inside the air chamber in real time. The drive mechanism 120 can depressurize or replenish air according to the pressure state inside the air chamber, thereby ensuring that the pressure inside the air chamber is always in a suitable state during actual operation, thus ensuring the sealing effect of the sealing structure 100. In the embodiments of the present invention, the specific type of pressure sensor can be selected according to actual needs, and no limitation is made here on the specific type of pressure sensor.

[0036] Optionally, the sealing structure 100 also includes an exhaust valve 140, which is connected to the exhaust port of the air chamber. It is understood that during actual operation, excessive pressure inside the air chamber and the completion of the self-cleaning process necessitate pressure relief of the air chamber. In this embodiment, the added exhaust valve 140 can open when the pressure inside the air chamber is excessive or after the self-cleaning process, achieving rapid pressure relief within the air chamber. This prevents damage to the seal 110 due to excessive pressure inside the air chamber and allows the seal 110 to quickly return to its original state, facilitating the user's opening and closing of the toilet seat 200.

[0037] Optionally, the drive mechanism 120 includes an air pump. Understandably, during actual operation, the air pump starts when the self-cleaning program of the self-cleaning toilet begins, injecting external air into the air chamber, causing the air pressure inside the air chamber to rise rapidly, thereby causing the seal 110 to expand. If the pressure inside the air chamber is too high, or after the self-cleaning program ends, if the air pump is a dual-purpose pump (capable of both inflating and deflating), it will start to extract the gas from the air chamber to relieve pressure. If the air pump is a single-purpose pump with only an inflating function, the exhaust valve 140 needs to be opened to vent the gas.

[0038] Optionally, the drive mechanism 120 includes a piston mechanism. Understandably, during actual operation, the piston mechanism activates at the start of the self-cleaning program of the self-cleaning toilet, injecting air from the piston cylinder into the air chamber, causing a rapid increase in air pressure inside the air chamber, which in turn causes the seal 110 to expand. If the pressure inside the air chamber becomes too high, or after the self-cleaning program ends, the piston mechanism reverses its movement, drawing the gas back into the piston cylinder to relieve pressure. Further optionally, to ensure stable air pressure within the air chamber, the piston mechanism can be equipped with a self-locking structure. That is, after the air chamber is fully inflated, the self-locking structure locks the piston rod in a designated position, reducing the probability of air leakage. The form of the self-locking structure is existing technology and can be selected based on existing technology; therefore, the specific form of the self-locking structure is not limited here.

[0039] It should be further noted that, in an alternative embodiment of the present invention, the drive mechanism 120 includes an air pump and a piston mechanism, which are switchably connected to the air chamber. It is understood that by including the switchable piston mechanism and air pump in the drive mechanism 120, in actual operation, if one mechanism fails, the other structure can still ensure the normal expansion and rebound of the seal 110, thereby ensuring the reliability of the sealing structure 100.

[0040] Optionally, the air chamber is provided with an elastic support structure, which is used to assist the deformation of the sealing element 110 when the pressure changes.

[0041] Of course, it should be noted that the sealing structure 100 of the present invention also includes a power source, which can provide electrical energy to the exhaust valve 140, the intake valve 130, the controller 150, and the drive mechanism 120. In an alternative embodiment, the sealing structure 100 can directly use the power source of the self-cleaning toilet, without requiring a separate power source.

[0042] It should be noted that the controller 150 can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to control the intake valve 130, exhaust valve 140, drive mechanism 120 and pressure sensor to achieve their respective functions.

[0043] The present invention also discloses a self-cleaning toilet, see reference. Figures 2-4 As shown, the self-cleaning toilet includes a toilet seat 200, a bowl 300, and a sealing structure 100 as described above. The sealing element 110 of the sealing structure 100 is installed on either the toilet seat 200 or the bowl 300. It is understood that, due to the aforementioned sealing structure 100, during actual operation, when the toilet seat 200 is placed on the bowl 300 and the self-cleaning toilet is running its self-cleaning program, the controller 150 receives a control command from the overall control of the toilet and activates the drive mechanism 120. The drive mechanism 120 injects gas into the air chamber of the sealing element 110, increasing the internal pressure and causing the sealing element 110 to expand (see reference). Figure 3 As shown), it fits tightly against the surfaces of the toilet seat 200 and the bowl 300, achieving a strong seal. After cleaning and drying, the drive mechanism 120 slowly releases the gas in the air chamber, reducing the internal pressure and restoring the seal 110 to its initial shape and friction state (see reference). Figure 4 As shown), it does not interfere with the normal opening and closing of the toilet seat 200.

[0044] Optionally, notches 310 are provided on both opposite sides of the toilet bowl 300, and a first sealing edge 210 and a second sealing edge 220 are provided on the toilet seat 200. The side walls and bottom walls of the first sealing edge 210, the second sealing edge 220, and the notches 310 constitute the receiving space for installing the sealing element 110. When the self-cleaning toilet performs self-cleaning, the sealing element 110 seals the entire receiving space to isolate the receiving space from the external environment. It can be understood that when the toilet seat 200 is fastened onto the toilet bowl 300, the first sealing edge 210, the second sealing edge 220, the side walls and bottom walls of the notches 310 constitute the receiving space for installing the sealing element 110. When the self-cleaning toilet performs self-cleaning, the sealing element 110 seals the entire receiving space to isolate the receiving space from the external environment, ensuring a stronger seal at the connection between the toilet seat 200 and the toilet bowl 300, thereby preventing toilet leakage during the self-cleaning process.

[0045] Optionally, the seal 110 is connected to the first sealing edge 210 and / or the first sealing edge 210. In some embodiments, the seal 110 is connected to the first sealing edge 210; in some embodiments, the seal 110 is connected to the second sealing edge 220; in some embodiments, the seal 110 is connected to both the first sealing edge 210 and the second sealing edge 220, and the specific connection can be selected according to actual needs.

[0046] Optionally, the seal 110 is connected to the sidewall and / or bottom wall of the notch 310. In some embodiments, the seal 110 is connected to the sidewall of the notch 310; in some embodiments, the seal 110 is connected to the bottom wall of the notch 310; in some embodiments, the seal 110 is connected to both the sidewall and the bottom wall of the notch 310.

[0047] The pressure parameters of the self-cleaning toilet of this invention are as follows:

[0048] Working pressure P0: set at 3 kPa. Under this pressure, the seal 110 maintains a stable shape and has moderate friction with the toilet bowl 300, ensuring smooth opening and closing of the toilet seat 200 without abnormal noise.

[0049] The first preset pressure P1 is set at 12 kPa. This pressure value has been calculated and experimentally verified to effectively overcome the maximum expected positive pressure generated in the toilet cavity during the self-cleaning process, ensuring zero leakage of liquid, steam, and odor, while remaining within the safe stress range of the seal 110.

[0050] The difference between the working pressure and the first preset pressure is ΔP, set to 1.2 kPa (i.e., 10% of P1). When the pressure sensor detects that the air chamber pressure has dropped to 10.8 kPa (P1 - ΔP), the pressure compensation mechanism is triggered. This threshold avoids frequent operation due to pressure sensor noise or minor leaks, and intervenes in time before the sealing performance deteriorates.

[0051] Maximum preset pressure Pmax: set to 18 kPa (i.e., 1.5 times P1). This is a safety redundancy design. When the pressure rises abnormally to this value, it is determined to be a system malfunction, and an emergency pressure relief procedure will be executed immediately to protect the seal 110 and related components from damage.

[0052] The working process of the self-cleaning toilet of the present invention is as follows:

[0053] S1: The toilet seat 200 is placed on the toilet bowl 300, and the self-cleaning toilet starts the self-cleaning program. Specifically, the controller 150 receives the start signal (which may come from the main control system of the toilet cleaning system).

[0054] S2: The drive mechanism 120 inflates the air chamber of the seal 100, and stops inflating when the air pressure in the air chamber reaches the first preset pressure P1; at this time, the seal 100 is in a pressure-boosted state; the specific actions are as follows:

[0055] If an air pump is used: the controller 150 opens the air inlet valve 130 and starts the air pump to inflate the air chamber of the seal 110, and the pressure sensor monitors the pressure value in the air chamber in real time. When the pressure reaches the first preset pressure P1 (12kPa), the controller 150 immediately shuts off the air pump and closes the air inlet valve 130 to complete the sealing.

[0056] If a piston mechanism is used: the controller 150 drives the piston mechanism to move, and the pressure sensor monitors the pressure value in real time. When the pressure reaches P1 (12 kPa), the controller 150 immediately stops the piston movement and activates the locking mechanism (such as a self-locking screw motor) to maintain the piston position and complete the sealing.

[0057] S3: During the self-cleaning process, the air pressure in the air chamber is detected at a preset sampling frequency. When the air pressure in the air chamber is lower than the second preset air pressure, the drive mechanism 100 is restarted to replenish the air pressure in the air chamber. At this time, the seal 100 is in a pressure maintenance state. The specific actions are as follows:

[0058] During the self-cleaning process, the pressure sensor continuously monitors the air chamber pressure at a specific sampling frequency (e.g., 10Hz). When the detected pressure is below 10.8kPa, it is determined to be an effective pressure loss, and a compensation operation is performed.

[0059] If an air pump is used: Controller 150 restarts the air pump and opens the intake valve 130 for short-term air replenishment. Air replenishment stops once the pressure reaches P1.

[0060] If a piston mechanism is used: the controller 150 drives the piston mechanism to make a small forward movement, compressing the air chamber until the pressure is restored to P1.

[0061] It should be noted that this process is repeated cyclically to ensure that the air chamber pressure remains within the range of 10.8 kPa to 12 kPa throughout the entire self-cleaning cycle.

[0062] After the self-cleaning process is completed, the air chamber is depressurized, and depressurization stops when the air pressure in the air chamber reaches the working pressure.

[0063] S4: After the self-cleaning process is completed, the air chamber is depressurized. Depressurization stops when the air pressure in the air chamber reaches the working pressure. At this time, the seal is in a pressure-released state. The specific actions are as follows:

[0064] If an air pump solution is used: the controller 150 controls the opening of the exhaust valve 140, and the air is naturally exhausted by utilizing the pressure difference between the inside and outside of the air chamber. The pressure sensor monitors in real time, and when the pressure drops to the working pressure P0 (3kPa), the controller 150 closes the exhaust valve 140.

[0065] If a piston mechanism is used: the controller 150 controls the piston mechanism to move in the opposite direction to discharge the gas in the air chamber. The pressure sensor monitors the pressure in real time. When the pressure drops to the working pressure P0 (3kPa), the piston mechanism stops working.

[0066] It should be noted that during the inflation or compression process described above, if the pressure sensor detects an abnormal increase in pressure to the maximum preset pressure Pmax (18 kPa), regardless of whether P1 is reached, the controller 150 will immediately enter the fault handling mode: it will first shut down the power source (the motor of the air pump / piston mechanism) and fully open the exhaust valve 140, while sending a fault code to the main control system of the self-cleaning toilet until the pressure drops back to a safe range.

[0067] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A sealing structure for a self-cleaning toilet, characterized in that, include: A sealing element (110) having an air chamber, and the sealing element (110) being mounted on a toilet seat (200) or a toilet bowl (300); A drive mechanism (120) is connected to the air chamber via an air inlet valve (130) and is used to adjust the pressure inside the air chamber. A controller (150) is electrically connected to the intake valve (130) and the drive mechanism (120); The sealing element (110) has a pressure-increasing state, a pressure-holding state, and a pressure-releasing state. In the pressure-increasing state, the driving mechanism (120) increases the pressure of the air chamber. In the pressure-holding state, the pressure in the air chamber is maintained at a preset pressure so that the sealing element (110) seals the mating gap between the toilet seat (200) and the toilet bowl (300). In the pressure-releasing state, the pressure of the air chamber decreases.

2. The sealing structure of the self-cleaning toilet according to claim 1, characterized in that, It also includes a pressure sensor, which is installed in the air chamber and is used to detect the pressure inside the air chamber. The pressure sensor is electrically connected to the controller (150).

3. The sealing structure of the self-cleaning toilet according to claim 1, characterized in that, It also includes an exhaust valve (140) connected to the exhaust port of the air chamber.

4. The sealing structure of the self-cleaning toilet according to claim 1, characterized in that, The drive mechanism (120) includes an air pump or a piston mechanism; or: The drive mechanism (120) includes an air pump and a piston mechanism, which are switchably connected to the air chamber.

5. The sealing structure of the self-cleaning toilet according to claim 1, characterized in that, The air cavity is provided with an elastic support structure, which is used to assist the deformation of the seal (110) when the pressure changes.

6. A self-cleaning toilet, characterized in that, The toilet includes a toilet seat (200), a bowl (300), and a sealing structure for a self-cleaning toilet as described in any one of claims 1-5, wherein a sealing element (110) of the sealing structure for the self-cleaning toilet is installed on the toilet seat (200) or the bowl (300).

7. The self-cleaning toilet according to claim 6, characterized in that, The bucket body (300) has notches (310) on its opposite sides. The toilet seat (200) has a first sealing edge (210) and a second sealing edge (220). The first sealing edge (210), the second sealing edge (220), the side wall and the bottom wall of the notch (310) form a receiving space for installing the sealing element (110). When the self-cleaning toilet performs self-cleaning, the sealing element (110) seals the entire receiving space to isolate the receiving space from the external environment.

8. The self-cleaning toilet according to claim 7, characterized in that, The sealing element (110) is connected to the first sealing edge (210) and / or the first sealing edge (210); or: The seal (110) is connected to the sidewall and / or bottom wall of the notch (310).

9. A control method for a self-cleaning toilet as described in claim 8, characterized in that, Includes the following steps: Place the toilet seat (200) onto the toilet bowl (300), and the self-cleaning toilet will start its self-cleaning program; The drive mechanism inflates the air chamber of the seal, and stops inflating when the air pressure in the air chamber reaches a first preset pressure. During the self-cleaning process, the air pressure in the air chamber is detected at a preset sampling frequency. When the air pressure in the air chamber is lower than the second preset air pressure, the drive mechanism is restarted to replenish the air pressure in the air chamber. After the self-cleaning process is completed, the air chamber is depressurized, and the depressurization stops when the air pressure in the air chamber reaches the working pressure.

10. The control method for a self-cleaning toilet according to claim 9, characterized in that, When the air chamber is being inflated, if the air pressure inside the air chamber is higher than the maximum preset pressure, the drive mechanism stops working and depressurizes the air chamber.

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