Toilet device and control method for preventing overflow of foam inside a sewage tank

Abstract

The application relates to a toilet device and a control method for preventing foam in a sewage tank from overflowing, the toilet device comprising: a toilet body; a sewage tank arranged at the bottom of the toilet body; a pipeline switching assembly comprising a pipeline component, a deodorization module and a flow path switching component; wherein the pipeline component is connected to the toilet body and the sewage tank, the deodorization module and the flow path switching component are arranged on the pipeline component, the flow path switching component has a foam backflow mode and a deodorization mode, when the flow path switching component is in the foam backflow mode, the sewage tank is connected to the toilet body through the pipeline component, and when the flow path switching component is in the deodorization mode, the sewage tank is connected to the deodorization module through the pipeline component. The application can prevent foam in the sewage tank from being directly discharged to the external environment to cause pollution.

Description

Technical Field

[0001] This application relates to the field of sanitary equipment technology, and in particular to a toilet device and a control method for preventing foam overflow from the inside of a sewage tank. Background Technology

[0002] In existing toilet systems, the waste tank is typically used to collect and process waste and foam concentrate. To balance the air pressure inside and outside the tank and ensure smooth drainage, a vent pipe is usually installed on the top of the waste tank.

[0003] During operations such as breaking up foam concentrate, flushing, or self-cleaning, a large amount of foam will rapidly be generated inside the wastewater tank. Because the existing venting pipes have a single function, they can only maintain air pressure balance and cannot effectively intercept or guide the foam, causing a large amount of foam to easily fill the wastewater tank and overflow from the venting pipes into the external environment, causing pollution. Summary of the Invention

[0004] This application provides a toilet device and a control method for preventing foam overflow from inside the sewage tank, aiming to solve the problem that foam generated inside traditional sewage tanks will overflow into the external environment through pipes, causing pollution.

[0005] In a first aspect, embodiments of this application provide a toilet device, the toilet device comprising: Toilet seat body; A wastewater tank is located at the bottom of the toilet body; A pipe switching assembly includes a pipe component, a deodorization module, and a flow path switching component. The pipe component is connected to the toilet body and the wastewater tank. The deodorization module and the flow path switching component are mounted on the pipe component. The flow path switching component has a foam recirculation mode and a deodorization mode. When the flow path switching component is in foam recirculation mode, the wastewater tank is connected to the toilet body through the pipe component. When the flow path switching component is in deodorization mode, the wastewater tank is connected to the deodorization module through the pipe component.

[0006] In one embodiment, the piping components include a vent pipe, a foam return pipe, and a deodorizing pipe; wherein, the input end of the flow path switching component is connected to the wastewater tank through the vent pipe, the first output end of the flow path switching component is connected to the toilet body through the foam return pipe, and the second output end of the flow path switching component is connected to the deodorizing module through the deodorizing pipe; when the flow path switching component is in foam return mode, the input end is connected to the first output end; when the flow path switching component is in deodorizing mode, the input end is connected to the second output end.

[0007] In one embodiment, the flow path switching component includes a valve body and a valve core. The valve body has an input end, a first output end, and a second output end. The valve core is movably disposed on the valve body so that the valve core is in a first working position or a second working position. When the valve core is in the first working position, the valve core blocks the second output end, and the input end is connected to the first output end. When the valve core is in the second working position, the valve core blocks the first output end, and the input end is connected to the second output end.

[0008] In one implementation, the flow path switching component further includes a first hose and a second hose. The input end is connected to the first output end via the first hose, and the input end is connected to the second output end via the second hose. When the valve core is in the first working position, the valve core squeezes the second hose to block the second hose. When the valve core is in the second working position, the valve core squeezes the first hose to block the first hose. When the valve core is in the third working position, the valve core simultaneously squeezes the second hose and the first hose to block both the second hose and the first hose.

[0009] In one embodiment, the flow path switching component further includes a driving member, the output shaft of which is connected to the valve core to drive the valve core to rotate, thereby placing the valve core in the first working position, the second working position, and the third working position.

[0010] In one embodiment, the valve core includes multiple rollers, a turntable bracket, and a turntable bracket fixing plate. The multiple rollers are spaced apart on the turntable bracket, and the turntable bracket is set on the valve body through the turntable bracket fixing plate. The output shaft of the drive component is connected to the turntable bracket to drive the multiple rollers to rotate as a whole, thereby causing the multiple rollers to squeeze the second hose and / or the first hose.

[0011] In one embodiment, the toilet body is provided with an overflow hole, which is located at the end of the toilet body away from the waste tank.

[0012] Secondly, this application provides a control method for preventing foam overflow from inside a wastewater tank, applied to the toilet device described above, the method comprising: Get the status of the sewage tank; In response to the sewage tank being in operation, the flow path switching component is controlled to enter the foam recirculation mode; In response to the wastewater tank being in standby mode, the flow path switching component is controlled to enter deodorization mode.

[0013] As one implementation, the method further includes: Obtain the posture information of the toilet device; Based on the posture information, it is determined whether the toilet is in a tilted state; If the toilet is in the tilted state, the flow path switching component is controlled to be in the shut-off mode.

[0014] As one implementation, the method further includes: Based on the control mode of the flow path switching component, the working position of the valve core in the flow path switching component is controlled; When the flow path switching component is in foam reflux mode, the valve core of the flow path switching component is controlled to be in the first working position; when the flow path switching component is in deodorization mode, the valve core of the flow path switching component is controlled to be in the second working position; when the flow path switching component is in shut-off mode, the valve core of the flow path switching component is controlled to be in the third working position.

[0015] This application provides a toilet device and a control method for preventing foam overflow from the inside of the waste tank. The toilet device includes: a toilet body; a waste tank disposed at the bottom of the toilet body; and a pipeline switching assembly, which includes pipeline components, a deodorization module, and a flow path switching component. The pipeline components are connected to the toilet body and the waste tank. The deodorization module and the flow path switching component are disposed on the pipeline components. The flow path switching component has a foam recirculation mode and a deodorization mode. When the flow path switching component is in the foam recirculation mode, the waste tank is connected to the toilet body through the pipeline components. When the flow path switching component is in the deodorization mode, the waste tank is connected to the deodorization module through the pipeline components.

[0016] This application embodiment incorporates a flow path switching component with both foam recirculation and deodorization modes. When the flow path switching component is in foam recirculation mode, the foam generated in the wastewater tank can be guided back to the toilet body through the pipeline component, preventing direct discharge of foam into the external environment and thus avoiding environmental pollution. When the flow path switching component is in deodorization mode, the wastewater tank can be vented through the pipeline component to maintain the internal air pressure balance, and the vented gas is first treated by the deodorization module before being released, thereby effectively preventing pollution to the external environment. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 A structural assembly diagram of the toilet device provided in this application; Figure 2 A schematic diagram of the toilet body provided in this application from one angle; Figure 3 Another structural schematic diagram of the toilet body provided in this application; Figure 4 A partial structural assembly diagram of the pipeline switching component provided in this application at one angle; Figure 5 A partial structural assembly diagram of the pipeline switching component provided in this application from another angle; Figure 6 An exploded view of the structure of the pipeline switching component provided in this application; Figure 7 A schematic diagram showing the valve core in the first working position as provided in this application; Figure 8 A schematic diagram showing the valve core in the second working position as provided in this application; Figure 9 A schematic diagram showing the valve core in the third working position as provided in this application; Figure 10 A schematic flowchart of an embodiment of the control method for preventing foam overflow inside a sewage tank provided in this application.

[0021] Explanation of icon numbers: Toilet device 10, toilet body 100, overflow hole 110, water inlet hole 120, sewage tank 200, pipeline switching assembly 300, pipeline component 310, vent pipe 311, foam return pipe 312, deodorization pipe 313, flow path switching component 320, valve body 400, input end 411, first output end 412, second output end 413, first hose 420, second hose 430, first adapter 440, second adapter 450, third adapter 460, valve core 500, turntable bracket 510, roller 520, turntable bracket fixing plate 530, drive component 600, motor 610, motor bracket 620, photoelectric PCB board 710, photoelectric positioning plate 720, travel limit switch 730. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0024] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0025] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0026] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0027] As used in this specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0028] To address the aforementioned issues, this application provides a toilet device and a control method for preventing foam overflow from the inside of the waste tank. This method guides the foam generated inside the waste tank back to the toilet body through pipe components, preventing the foam from being directly discharged into the external environment and causing environmental pollution.

[0029] See Figures 1-9 This embodiment provides a toilet device 10, such as... Figure 1 As shown, the toilet device 10 includes a toilet body 100, a waste tank 200, and a piping switching assembly 300. The waste tank 200 is located at the bottom of the toilet body 100 and is used to collect and process waste and foam concentrate. The piping switching assembly 300 includes a piping component 310, a deodorizing module, and a flow path switching component 320. The piping component 310 connects the toilet body 100 and the waste tank 200, while the deodorizing module and flow path switching component 320 are mounted on the piping component 310. Specifically, the piping switching assembly 300 constitutes the airflow management center of the toilet device 10. It physically connects the waste tank 200 and the toilet body 100 to the external environment (via the deodorizing module) through the piping component 310, while the flow path switching component 320 dynamically adjusts the airflow direction based on received control signals.

[0030] In this embodiment, the flow path switching component 320 has a foam reflux mode and a deodorization mode. When the flow path switching component 320 is in the foam reflux mode, the wastewater tank 200 is connected to the toilet body 100 through the pipe component 310. Specifically, when the wastewater tank 200 is in operation such as agitation, flushing, or self-cleaning, a large amount of foam will be rapidly generated inside the wastewater tank 200. At this time, the flow path switching component 320 automatically switches to the foam reflux mode according to the received control signal, so that the wastewater tank 200, the pipe component 310, and the toilet body 100 form a passage. Based on this, the foam generated by the wastewater tank 200 can be directed back into the toilet body 100 under pressure, instead of being directly discharged into the external environment, thus avoiding foam overflow and pollution of the external environment.

[0031] When the flow path switching component 320 is in deodorization mode, the wastewater tank 200 is connected to the deodorization module via the pipe component 310. Specifically, when the wastewater tank 200 is in standby or static state, although it no longer produces a large amount of foam, it will still naturally release odorous gas. At this time, the flow path switching component 320 switches to deodorization mode, cutting off the backflow path to the toilet body 100 and instead establishing an exhaust path to the deodorization module. The gas in the wastewater tank 200 can enter the deodorization module through the exhaust path for purification before being discharged into the environment, thereby maintaining the gas pressure balance in the wastewater tank 200. Furthermore, the discharged gas is first treated by the deodorization module before being released, which can effectively prevent pollution to the external environment.

[0032] It should be understood that although this embodiment uses foam reflux and deodorization as examples for illustration, in other embodiments, the flow path switching component 320 can be expanded to other functional modes according to actual needs, as long as it has the ability to switch between different channels.

[0033] See Figures 1-3 In one embodiment, the toilet body 100 is provided with an overflow hole 110 and a water inlet hole 120. The overflow hole 110 is located at the end of the toilet body 100 away from the waste tank 200. The water inlet hole 120 can communicate with the water tank of the toilet. Specifically, since the waste tank 200 is usually located at the bottom or lower area of ​​the toilet body 100, the end away from the waste tank 200 corresponds spatially to the higher end of the toilet body 100, such as the upper inner wall of the toilet bowl, below the top cover, or the higher area at the connection of the water tank. On the one hand, the high position provides sufficient gravitational potential energy difference for the foam returning from the foam return pipe 312, allowing the foam to smoothly slide down into the water storage area or sewage channel inside the toilet bowl under its own gravity, avoiding foam accumulation or even backflow at the pipe opening due to the low position; on the other hand, setting the overflow hole 110 in a high position far away from the main path of normal flushing water flow can effectively prevent the high-speed falling water flow from directly washing over or submerging the overflow hole 110 when the user performs a regular flushing operation, thereby preventing the flushing water flow from flowing back into the foam return pipe 312 through the overflow hole 110, causing system pollution or functional failure.

[0034] In this embodiment, the specific diameter, cross-sectional shape, and opening angle of the overflow orifice 110 are not limited to a fixed value, but are determined according to its actual fluid transmission function. For example, the cross-sectional area of ​​the overflow orifice 110 should be at least larger than the equivalent flow area of ​​the inner diameter of the foam return pipe 312 to ensure that throttling and blockage will not occur under peak foam generation conditions; at the same time, the edges of the overflow orifice 110 preferably adopt a smooth transition or chamfer design to prevent viscous substances in the foam from adhering to the orifice wall and remaining. In terms of specific form, the overflow orifice 110 can be a single circular through hole, a combination of multiple small holes arranged in an array, or a strip-shaped slit extending circumferentially, as long as its overall flow capacity meets the flow requirements of foam return.

[0035] In some embodiments, the flow path switching component 320 may be an electric valve, a pneumatic valve, or a mechanical linkage valve, etc. As long as it can achieve the switching function of the above two modes, it is within the protection scope of this embodiment.

[0036] See Figure 1 , Figures 4-6 In one implementation, the piping component 310 includes a vent pipe 311, a foam return pipe 312, and a deodorizing pipe 313. These three pipes constitute the physical basis for the fluid and gas transmission inside the toilet device 10, and the physical isolation of different functional media is achieved through independent piping design. Specifically, the flow path switching component 320 has one input end 411 and two output ends, namely the first output end 412 and the second output end 413. The input end 411 of the flow path switching component 320 is connected to the sewage tank 200 through the vent pipe 311 to exhaust gas or foam from the sewage tank 200; the first output end 412 of the flow path switching component 320 is connected to the toilet body 100 through the foam return pipe 312 to guide the foam back into the toilet body 100; the second output end 413 of the flow path switching component 320 is connected to the deodorizing module through the deodorizing pipe 313 to transport the gas discharged from the sewage tank 200 to the deodorizing unit for purification treatment.

[0037] Thus, this embodiment employs a three-way independent pipeline design. By completely separating the foam return path from the deodorization path in physical space, and controlling the switching only within the flow path switching component 320, the deodorization module is always kept in a relatively dry and clean gas environment, extending its service life. Simultaneously, the foam return pipe 312 can be independently optimized according to the foam flow rate, thereby ensuring smooth return under high foam generation conditions.

[0038] It should be understood that although this embodiment uses vent pipe 311, foam return pipe 312, and deodorization pipe 313 as specific pipeline forms, in other embodiments, these pipelines can also use other names or integrated forms, as long as they have the corresponding fluid transmission function. For example, the section of vent pipe 311 and foam return pipe 312 near the sewage tank 200 can be merged into a common main section, branching only near the flow path switching component 320, or a multi-channel composite flexible hose can be used instead to save installation space. In addition, regarding the selection of pipe materials, considering the corrosiveness of the environment inside the sewage tank 200 and the special characteristics of foam fluid, corrosion-resistant and aging-resistant flexible materials, such as silicone tubes, EPDM rubber tubes, or PTFE tubes, are preferred to ensure long-term sealing and reliability. Regardless of the specific pipe material or pipe layout method used, as long as the switchable connection between the input end 411 and the two output ends is maintained, it falls within the protection scope of this embodiment.

[0039] In one implementation, the flow path switching component 320 includes a valve body 400 and a valve core 500. The valve body 400 has an input end 411, a first output end 412, and a second output end 413. The valve core 500 is movably disposed on the valve body 400 so that the valve core 500 is in a first working position or a second working position. Specifically, the valve body 400 serves as the housing and flow channel carrier of the flow path switching component 320, and its interior contains a moving chamber accommodating the valve core 500 and internal channels connecting the various ports. The valve core 500 is the core moving component that performs the flow path switching action, and it changes the connection state of the internal channels by displacement or rotation relative to the valve body 400.

[0040] In this embodiment, there is a correspondence between the position state of the valve core 500 and the conduction logic of the flow path. When the valve core 500 is in the first working position, it blocks the second output terminal 413, while the input terminal 411 is connected to the first output terminal 412. This means that when the system needs to perform the foam backflow function, the valve core 500 moves to the first working position. At this time, the second output terminal 413 leading to the deodorization module is closed by the valve core 500, while the first output terminal 412 leading to the toilet body 100 remains unobstructed, thereby ensuring that the foam generated in the sewage tank 200 can enter the toilet body 100 without obstruction through the foam backflow pipe 312. Correspondingly, when the valve core 500 is in the second working position, it blocks the first output terminal 412, while the input terminal 411 is connected to the second output terminal 413. When the system switches to deodorization mode, the valve core 500 moves to the second working position, closing the backflow path to the toilet body 100 and opening the exhaust path to the deodorization module, so that odorous gases can be purified and discharged.

[0041] In foam reflux mode, because the second output end 413 is blocked, even if the foam in the sewage tank 200 experiences pressure fluctuations, the foam cannot penetrate into the deodorization pipe 313, thus avoiding the problem of activated carbon and other deodorization filter materials failing due to moisture or contamination. Conversely, in deodorization mode, the blocking of the first output end 412 prevents dust or foreign objects in the external environment from flowing back into the sewage tank 200 through the reflux pipe, and also prevents foam residue from remaining in the valve body 400 and causing blockage when reflux is not required. It should be understood that "blocking" in this embodiment refers to the substantial sealing isolation formed by the valve core 500 to the port, which can be achieved in various ways. For example, the valve core 500 can be a rotary ball valve or rotary valve, which aligns or offsets the flow channel by rotating the angle; it can also be a linear reciprocating slide valve or plunger valve, which covers or opens the valve port by translation; it can also be a diaphragm valve or butterfly valve, etc. Regardless of the specific valve type used, as long as it has the function of switching between the first and second working positions and achieving mutually exclusive conduction between the corresponding ports, it falls within the protection scope of this embodiment. Furthermore, the movement of the valve core 500 is not limited to direct contact sealing; it can also achieve indirect blocking through an intermediate medium.

[0042] See Figure 1 , Figures 4-6 In one implementation, the flow path switching component 320 further includes a first hose 420 and a second hose 430. The input end 411 is connected to the first output end 412 via the first hose 420, and the input end 411 is connected to the second output end 413 via the second hose 430. Specifically, the first hose 420 and the second hose 430 constitute the actual carrier for fluid transmission inside the valve body 400. They are made of flexible materials, such as medical-grade silicone tubing, EPDM rubber tubing, or fluororubber tubing, and have good elastic recovery performance and chemical corrosion resistance. This design physically isolates the fluid channel from the mechanical moving parts of the valve body 400, allowing the valve core 500 to control the flow path without directly contacting the fluid medium. In terms of connection, the first hose 420 is dedicated to the foam return path, and the second hose 430 is dedicated to the deodorization and exhaust path; the two are arranged independently within the valve body 400.

[0043] In this embodiment, the valve core 500 controls the hose using a compression-type blocking principle. When the valve core 500 is in the first working position, such as Figure 6 and Figure 7 As shown, valve core 500 compresses the second hose 430 to block it. This means that when the system needs to perform the foam backflow function, valve core 500 moves or rotates to a specific angle, applying sufficient radial pressure to the second hose 430 to close its cavity, thereby cutting off the path to the deodorizing module and ensuring that foam can flow to the toilet body 100 via the first hose 420. Accordingly, when valve core 500 is in the second working position, such as... Figure 6 and Figure 8 As shown, valve core 500 squeezes the first hose 420 to block the first hose 420. That is, when the system switches to deodorization mode, valve core 500 squeezes the first hose 420 to close the foam backflow path, while releasing the squeeze on the second hose 430 to open the deodorization gas path.

[0044] Furthermore, the valve core 500 in this embodiment is also configured to have a fully shut-off safety state. When the valve core 500 is in the third operating position, such as Figure 6 and Figure 9 As shown, the valve core 500 simultaneously squeezes the second hose 430 and the first hose 420 to block them. That is, the valve core 500 applies blocking pressure to both hoses simultaneously, cutting off all communication paths between the wastewater tank 200 and the external environment (including the toilet body 100 and the deodorization module). When the toilet device 10 accidentally tipes over, the control system can drive the valve core 500 to quickly switch to the third working position. The complete closure of the second hose 430 and the first hose 420 prevents wastewater or foam in the wastewater tank 200 from leaking through the vent pipe 311 due to gravity, thus avoiding environmental pollution or electrical short circuits and other safety hazards. It should be understood that the realization of the third working position does not depend on a specific mechanical limiting structure; it only requires that the movement trajectory of the valve core 500 has an effective squeezing area that can simultaneously cover both hoses.

[0045] This embodiment employs a hose compression sealing structure. Since the valve core 500 only acts on the outer wall of the hose and does not contact the internal medium, the risk of particles, fibers, or viscous substances in the foam concentrate entering the valve core 500 and causing jamming or wear can be eliminated, thus improving the valve's operational reliability and service life. Secondly, when the hose is compressed and closed, it forms a surface seal rather than a line seal, and the sealing surface is made of the hose's own elastic material, which is tolerant of small foreign objects, effectively preventing odor leakage or foam from accidentally entering the deodorizing module.

[0046] In some embodiments, the interior of the valve body 400 may be constructed with flow channels to form an input end 411, a first output end 412, and a second output end 413; or, the valve body 400 may be an open frame, and the interior of the valve body 400 may be formed by pipe arrangement to form an input end 411, a first output end 412, and a second output end 413.

[0047] In some embodiments, the flow path switching component 320 further includes a first adapter 440, a second adapter 450, and a third adapter 460. The first adapter 440 is located at the input end 411, the second adapter 450 is located at the first output end 412, and the third adapter 460 is located at the second input end 411. The first adapter 440 can be a three-way adapter, connecting the vent pipe 311, the first flexible hose 420, and the second flexible hose 430. The second adapter 450 connects the first flexible hose 420 and the foam return pipe 312, and the third adapter 460 connects the second flexible hose 430 and the deodorizing pipe 313.

[0048] In one embodiment, the flow path switching component 320 further includes a drive member 600. The output shaft of the drive member 600 is connected to the valve core 500 to drive the valve core 500 to rotate, thereby placing the valve core 500 in a first working position, a second working position, and a third working position. Specifically, the drive member 600 serves as the power source for the flow path switching component 320, converting electrical energy or other forms of energy into mechanical rotational motion, and directly transmitting it to the valve core 500 through the output shaft.

[0049] In this embodiment, the drive unit 600 is preferably a DC motor or a stepper motor, which can be fixedly installed on the outer end face of the valve body 400. For example, if the drive unit 600 is a stepper motor, the controller can drive the motor to rotate to the target angle by sending a fixed number of pulse signals, and use the step angle characteristics of the stepper motor to ensure the positioning accuracy of the valve core. For example, when the control system issues a mode switching command, the drive unit 600 receives an electrical signal and precisely rotates a specific angle, driving the valve core 500 to switch from the current position to the target working position (such as the first working position, the second working position, and the third working position), thereby realizing the on-demand compression or release of the first hose 420 and the second hose 430.

[0050] This embodiment employs an electric drive, enabling fully automated and intelligent response to flow path switching. It should be understood that while this embodiment uses a motor 610 as a preferred example of the drive element 600, the specific form of the drive element 600 is not limited to this in other embodiments. As long as the drive element 600 has the ability to controllably output power and drive the valve core 500 to switch between the first, second, and third working positions, it falls within the protection scope of this application. Furthermore, regarding the connection between the drive element 600 and the valve core 500, in addition to direct shaft-hole interference fits or key connections, indirect connections can also be made through intermediate transmission components such as couplings, gear sets, and pulleys to adapt to different spatial layout requirements or torque amplification needs. Regardless of the specific drive form or transmission link used, as long as electrically controllable switching of the valve core 500's position is achieved, it falls within the technical scope of this embodiment.

[0051] In one embodiment, the valve core 500 includes multiple rollers 520, a turntable bracket 510, and a turntable bracket fixing plate 530. The multiple rollers 520 are spaced apart on the turntable bracket 510. The turntable bracket 510 is set on the valve body 400 through the turntable bracket fixing plate 530. The output shaft of the drive component 600 is connected to the turntable bracket 510 to drive the multiple rollers 520 to rotate as a whole, thereby causing the multiple rollers 520 to squeeze the second hose 430 and / or the first hose 420.

[0052] Specifically, the turntable bracket 510 serves as the moving frame of the valve core 500, with its center fixedly connected to the output shaft of the drive unit 600 to transmit rotational torque. Multiple rollers 520 are rotatably mounted on multiple shafts on the turntable bracket 510. When the drive unit 600 rotates the turntable bracket 510, the multiple rollers 520 mounted on the bracket sequentially pass through the arrangement areas of the first hose 420 and the second hose 430. Since the surface of the rollers 520 is in contact with the outer wall of the hose, and the rollers 520 themselves have rotational capability, the friction between the rollers 520 and the hose during the hose compression process is mainly rolling friction. Therefore, compression friction can be reduced, lowering the wear rate of the hose surface.

[0053] It should be understood that although this embodiment uses a cylindrical roller 520 as an example, in other embodiments, the shape of the roller 520 can be adjusted according to the hose cross-section or extrusion requirements. For example, a drum-shaped roller 520 can be used to accommodate the bulging deformation of the hose under pressure, or a roller 520 with anti-slip textures can be used to prevent slippage. Regarding the material of the roller 520, engineering plastics with good self-lubrication, moderate hardness, and wear resistance, such as polyoxymethylene (POM), nylon (PA), or polytetrafluoroethylene (PTFE), are preferred, ensuring both flexible protection of the hose and sufficient structural strength. Of course, in applications requiring higher corrosion resistance or strength, stainless steel or ceramic rollers 520 can also be used. Furthermore, the number of rollers 520 is not limited to a specific value and can be flexibly configured according to the valve body 400 space, hose diameter, and required sealing level. For example, two rollers 520 can be used to achieve 180-degree symmetrical extrusion, or three or more rollers 520 can be used to achieve multi-point progressive extrusion to obtain smoother flow path switching characteristics. Regardless of the specific shape, material, or number of rollers 520 used, as long as they are rotatably mounted on the turntable bracket 510 and achieve rolling compression of the hose, they fall within the protection scope of this application.

[0054] In other embodiments, the flow path switching component 320 may be a multi-way control valve.

[0055] In another embodiment, the flow path switching component 320 further includes a position feedback element, such as... Figure 6As shown, the flow path switching component 320 also includes a photoelectric PCB board, a photoelectric positioning plate 720, and a travel limit switch 730. The travel limit switch 730, the photoelectric PCB board, and the photoelectric positioning plate 720 are all mounted on the valve body 400. The photoelectric positioning plate 720 rotates with the valve core. When the photoelectric positioning plate 720 rotates to a specific angle with the valve core, the notch of the photoelectric positioning plate 720 aligns perfectly with the optical path of the travel limit switch 730, triggering the travel limit switch 730. The travel limit switch 730 transmits a signal to the controller via the photoelectric PCB board 710. Upon receiving the signal, the controller stops the motor, thus completing the precise closed-loop control of the flow path switching.

[0056] Based on the toilet device provided in the above embodiments, this embodiment provides a control method to prevent foam overflow from inside the sewage tank. (See attached document.) Figure 10 , Figure 10 A schematic flowchart of an embodiment of a control method for preventing foam overflow inside a sewage tank provided in this application, the method may include the following steps: S1: Get the status of the sewage tank.

[0057] The specific implementation method for obtaining the status is not limited to one method in this application. For example, it can be determined as running state by a current detection module set in the motor drive circuit of the sewage tank when the motor current exceeds a preset threshold; or it can be determined by reading direct operating parameters such as motor speed signal and water pump start / stop signal output by the controller.

[0058] S2: In response to the sewage tank being in operation, the flow path switching component is controlled to enter the foam reflux mode.

[0059] The "operational state" refers to the stage in which the sewage tank is undergoing processes such as agitation, flushing, self-cleaning, or heating, which may generate a large amount of foam or severe pressure fluctuations. Specifically, when it is confirmed that the sewage tank is in the operational state, the controller immediately sends a switching command to the flow path switching component, which opens the passage from the sewage tank to the toilet body. This allows the foam generated in the sewage tank during operation to be directed back into the toilet body instead of being directly discharged into the external environment, thus preventing foam overflow and pollution of the external environment.

[0060] S3: In response to the sewage tank being in standby mode, the flow path switching component is controlled to enter deodorization mode.

[0061] Standby state can refer to the stage where the sewage tank is stationary after completing the above-mentioned work. When the system confirms that the sewage tank has stopped working actively and entered the standby state, the controller controls the flow path switching component to switch to another position, opening the passage from the sewage tank to the deodorization module. This allows the gas in the sewage tank to enter the deodorization module through the exhaust path for purification before being discharged into the environment. This maintains the gas pressure balance in the sewage tank, and the discharged gas is first treated by the deodorization module before being released, which can effectively prevent pollution to the external environment.

[0062] As one implementation method, the method further includes: acquiring the posture information of the toilet seat; determining whether the toilet seat is in a tilted state based on the posture information; and if the toilet seat is in a tilted state, controlling the flow path switching component to be in a cut-off mode.

[0063] In this embodiment, attitude information can be acquired through various sensing technologies. For example, a tilt switch (such as a mercury switch or a ball-bearing tilt switch) can be installed near the chassis or controller of the toilet. When the tilt angle exceeds a preset threshold, the internal contacts of the switch close or open, directly outputting a level signal as attitude information. After acquiring the attitude information, the system determines whether the toilet is in a tilted state. If the toilet is in a tilted state, the control flow path switching component is in a shut-off mode. This cuts off all communication paths between the waste tank and the toilet body and deodorization module, effectively preventing liquid and gas leakage from the waste tank and ensuring the safety of the internal circuit components while avoiding environmental pollution.

[0064] In some embodiments, the control mode of the flow path switching component can be changed by controlling the working position of the valve core. For example, the controller sends a first command to the drive unit to drive the valve core to rotate to the first working position, squeeze the second hose, and block the second output end by blocking the second hose, so that the input end is connected to the first output end; that is, the foam generated in the sewage tank can be transported to the toilet body in sequence through the vent pipe, the input end of the flow path switching component, the first output end, and the foam return pipe; For example, the controller sends a second command to the drive unit, which drives the valve core to rotate to the second working position, squeezes the first hose, and blocks the first output end by blocking the first hose, so that the input end is connected to the second output end; that is, the gas generated in the sewage tank can be transported to the deodorization module in sequence through the vent pipe, the input end of the flow path switching component, the second output end, and the deodorization pipe. For example, the controller sends a third command to the drive unit, which drives the valve core to rotate to the third working position, so that multiple rollers simultaneously squeeze the first hose and the second hose, thereby achieving physical isolation of all external passages.

[0065] This application provides a computer device, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, communication interface, and memory communicate with each other via the communication bus. Memory, used to store computer programs; In one embodiment of this application, when a processor executes a program stored in a memory, it implements the control method for preventing foam overflow inside a sewage tank provided in any of the foregoing method embodiments, including: Get the status of the sewage tank; In response to the sewage tank being in operation, the flow path switching component is controlled to enter the foam recirculation mode; In response to the wastewater tank being in standby mode, the flow path switching component is controlled to enter deodorization mode.

[0066] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program may be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the process steps of the embodiments of the above methods.

[0067] Therefore, embodiments of this application also provide a computer-readable storage medium storing a computer program thereon, wherein the computer program, when executed by a processor, implements the steps of the control method for preventing foam overflow from the inside of a sewage tank as provided in any of the foregoing method embodiments, including: Get the status of the sewage tank; In response to the sewage tank being in operation, the flow path switching component is controlled to enter the foam recirculation mode; In response to the wastewater tank being in standby mode, the flow path switching component is controlled to enter deodorization mode.

[0068] The storage medium is a physical, non-transient storage medium, such as a USB flash drive, external hard drive, read-only memory (ROM), magnetic disk, or optical disk, or any other physical storage medium capable of storing program code. The computer-readable storage medium can be non-volatile or volatile.

[0069] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0070] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0071] The steps in the methods of this application embodiment can be adjusted, merged, or deleted according to actual needs. The units in the apparatus of this application embodiment can be merged, divided, or deleted according to actual needs. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0072] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a terminal, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0073] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0074] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0075] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A toilet seat, characterized in that, The toilet device includes: Toilet seat body; A wastewater tank is located at the bottom of the toilet body; A pipe switching assembly includes a pipe component, a deodorization module, and a flow path switching component. The pipe component is connected to the toilet body and the wastewater tank. The deodorization module and the flow path switching component are mounted on the pipe component. The flow path switching component has a foam recirculation mode and a deodorization mode. When the flow path switching component is in foam recirculation mode, the wastewater tank is connected to the toilet body through the pipe component. When the flow path switching component is in deodorization mode, the wastewater tank is connected to the deodorization module through the pipe component.

2. The toilet device according to claim 1, characterized in that, The piping components include a vent pipe, a foam return pipe, and a deodorizing pipe; wherein, the input end of the flow path switching component is connected to the sewage tank through the vent pipe, the first output end of the flow path switching component is connected to the toilet body through the foam return pipe, and the second output end of the flow path switching component is connected to the deodorizing module through the deodorizing pipe; when the flow path switching component is in foam return mode, the input end is connected to the first output end; when the flow path switching component is in deodorizing mode, the input end is connected to the second output end.

3. The toilet device according to claim 2, characterized in that, The flow path switching component includes a valve body and a valve core. The valve body has an input end, a first output end, and a second output end. The valve core is movably disposed on the valve body so that the valve core is in a first working position or a second working position. When the valve core is in the first working position, the valve core blocks the second output end, and the input end is connected to the first output end. When the valve core is in the second working position, the valve core blocks the first output terminal, and the input terminal is connected to the second output terminal.

4. The toilet device according to claim 3, characterized in that, The flow path switching component further includes a first hose and a second hose. The input end is connected to the first output end through the first hose, and the input end is connected to the second output end through the second hose. When the valve core is in the first working position, the valve core squeezes the second hose to block the second hose; when the valve core is in the second working position, the valve core squeezes the first hose to block the first hose. When the valve core is in the third working position, the valve core simultaneously squeezes the second hose and the first hose to block the second hose and the first hose.

5. The toilet device according to claim 4, characterized in that, The flow path switching component also includes a driving component, the output shaft of which is connected to the valve core to drive the valve core to rotate, thereby placing the valve core in the first working position, the second working position, and the third working position.

6. The toilet device according to claim 5, characterized in that, The valve core includes multiple rollers, a turntable bracket, and a turntable bracket fixing plate. The multiple rollers are installed at intervals on the turntable bracket. The turntable bracket is set on the valve body through the turntable bracket fixing plate. The output shaft of the drive component is connected to the turntable bracket to drive the multiple rollers to rotate as a whole, thereby causing the multiple rollers to squeeze the second hose and / or the first hose.

7. The toilet device according to claim 1, characterized in that, The toilet body is provided with an overflow hole, which is located at the end of the toilet body away from the sewage tank.

8. A control method for preventing foam overflow from inside a sewage tank, characterized in that, Applied to the toilet device as described in any one of claims 1-7, the method comprises: Get the status of the sewage tank; In response to the sewage tank being in operation, the flow path switching component is controlled to enter the foam recirculation mode; In response to the wastewater tank being in standby mode, the flow path switching component is controlled to enter deodorization mode.

9. The method according to claim 8, characterized in that, The method further includes: Obtain the posture information of the toilet device; Based on the posture information, it is determined whether the toilet is in a tilted state; If the toilet is in the tilted state, the flow path switching component is controlled to be in the shut-off mode.

10. The method according to claim 9, characterized in that, The method further includes: Based on the control mode of the flow path switching component, the working position of the valve core in the flow path switching component is controlled; When the flow path switching component is in foam reflux mode, the valve core of the flow path switching component is controlled to be in the first working position; when the flow path switching component is in deodorization mode, the valve core of the flow path switching component is controlled to be in the second working position; when the flow path switching component is in shut-off mode, the valve core of the flow path switching component is controlled to be in the third working position.

Images