Water-saving squatting toilet seat and intelligent toilet

Abstract

The application provides a squatting water-saving toilet seat and an intelligent toilet. The toilet seat comprises a seat body, a water seal bowl and a sewer cavity. A sewage outlet is arranged on the rear wall of the toilet seat. The water seal bowl is suspended below the sewage outlet and is connected through a sewage pipe. The sewage pipe extends into the water seal bowl and separates the water seal bowl into a first water storage area and a second overflow area. The lower end surface of the water outlet end of the sewage pipe is not higher than the overflow water level of the water seal bowl. The sewer cavity is arranged around the water seal bowl and connects the overflow sewage and the sewage pipe. The seat is matched with a ring-shaped flushing pipe and a bottom reinforced flushing pipe, carries an intelligent flushing control component, and has a sitting and squatting dual-purpose function. The application relies on the overflow self-weight sewage, does not need a siphon bend and a movable sealing element, prevents blockage and saves water, separates odor and is stable, has a simple structure, and is suitable for multiple use scenarios.

Description

Technical Field

[0001] This invention relates to the field of sanitary ware, and more particularly to a water-saving squat toilet seat and a smart toilet. Background Technology

[0002] As a common sanitary ware in the field of building water supply and drainage, toilets are mainly divided into two categories: siphon type and direct flush type. Among them, siphon type toilets are widely used in the market due to their advantages of strong sewage suction, stable water seal and good odor prevention effect. Existing siphon type toilets all rely on built-in S-shaped or U-shaped siphon bends to achieve sewage discharge. When flushing, water needs to be continuously supplied to fill the siphon pipe, so that a negative pressure vacuum is formed in the pipe. The sewage in the basin is pumped out to the sewer by relying on the siphon suction. The siphon suction can be improved by externally lengthening the siphon pipe and adding bottom control valves to reduce the amount of water per flush. However, the core sewage discharge logic still does not deviate from the basic structure of negative pressure drainage of siphon pipe, and cannot avoid the inherent technical defects of the siphon structure.

[0003] Siphon pipes are winding, closed channels with limited inner diameters and numerous dead angles, making them prone to accumulating dirt and impurities. Long-term use can easily lead to blockages, making cleaning and maintenance difficult. Furthermore, the siphon effect requires a minimum water volume threshold to activate; sufficient clean water must be supplied to completely seal the siphon pipe and create negative pressure. Even with water-saving improvements such as longer siphon pipes and segmented water control valves, the basic water consumption remains high, making it difficult to achieve ultimate water conservation. In addition, the siphon pipe forming process is complex. During the firing of the ceramic blank, defects such as pipe dimensional deviations, rough inner walls, and air leaks can easily occur. If the pipe seal is insufficient, stable siphon suction cannot be generated, resulting in incomplete flushing and weak drainage, thus restricting product yield and long-term stability.

[0004] To avoid the numerous drawbacks of siphon pipe systems, the industry has seen the emergence of direct-flush toilet designs that eliminate the siphon bend. Existing direct-flush solutions often employ mechanical opening and closing components such as flaps, sealing valves, and floating plugs at the drain outlet. These mechanical structures seal the drain channel to achieve odor control, and the valve opens automatically during flushing to complete the discharge. However, these solutions rely on mechanical components for sealing. Rubber and plastic valves are prone to aging, deformation, and jamming due to prolonged immersion in sewage, leading to problems such as poor sealing, odor backflow, and water leakage. The mechanical transmission structure also increases the complexity of product assembly and the probability of failure. A small number of toilet solutions use overflow-assisted drainage, but this only uses the overflow channel as a backup drainage branch for tank overflow, while the main drain path still retains the siphon structure. Since overflow is not the core drainage method, it cannot achieve a completely siphon-free overflow drainage process. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a water-saving squat toilet seat and a smart toilet. By adopting a water seal bowl overflow sewage discharge structure to replace the traditional siphon pipe, it saves water and prevents blockage, is reliable in operation, simplifies the production process, and has the functions of sitting and squatting as well as smart flushing, which can be adapted to a variety of usage scenarios.

[0006] The technical solution adopted by this invention to solve its technical problem is: A water-saving squat toilet seat is provided, comprising: a toilet seat body, a water seal bowl, and a drain cavity; the toilet seat body is provided with a toilet chamber, and a drain outlet is provided at the lower part of the rear wall of the toilet chamber; the water seal bowl is suspended below the drain outlet and is connected to the drain outlet through a drain pipe; the water seal bowl is divided into a first water storage area and a second overflow area that are interconnected by the drain pipe; one end of the drain pipe is connected to the drain outlet at the lower part of the rear wall of the toilet chamber, and the other end extends into the water seal bowl as a water outlet; the lower end of the drain pipe is not higher than the overflow water level of the water seal bowl; the drain cavity is arranged around the outside of the water seal bowl and can receive the waste overflowing from the second overflow area of ​​the water seal bowl; the drain cavity can be connected to an external sewage pipe.

[0007] Preferably, the drain pipe extends downwards at an angle from the drain outlet toward the interior of the water seal bowl along its length, and the diameter of the drain pipe gradually decreases from its inlet end to its outlet end, so that the radial ratio of the first water storage area to the second overflow area of ​​the water seal bowl is 1:1-1.5.

[0008] Preferably, the drain cavity is a funnel-shaped shell with an open top and a constricted bottom. The upper opening of the drain cavity is sealed to the outer wall of the toilet chamber. The water seal bowl is suspended in the center of the drain cavity. The constricted bottom end of the drain cavity forms a drain interface for connecting to an external sewage pipe.

[0009] Preferably, the toilet seat body, water seal bowl, drain pipe, and drain cavity are integrally formed. The upper end of the water seal bowl is fixedly connected to the lower end of the drain pipe, and the drain pipe is formed by the rear wall and front wall of the toilet cavity. The water seal bowl is integrally formed with the rear wall of the toilet cavity. A water tank receiving cavity is correspondingly provided behind the toilet seat body on one side of the toilet cavity. The drain interface is provided with a horizontal drain outlet and a vertical drain outlet. The horizontal drain outlet faces horizontally to the outside of the toilet seat body, and the vertical drain outlet faces vertically downward.

[0010] Preferably, the outlet end of the drain pipe is submerged below the water surface in the water seal bowl, and the vertical distance between the water surface in the water seal bowl and the lower end face of the outlet end of the drain pipe constitutes the water seal height; the water seal height is not less than 20 mm.

[0011] Preferably, the inner wall of the toilet seat body is provided with an annular flushing pipe around the top of the toilet cavity. The annular flushing pipe is provided with multiple drain outlets spaced apart and facing the inside of the toilet cavity. The water outlets are adapted to the curvature of the inner wall of the toilet cavity, and the annular flushing pipe is connected to the water supply end of the intelligent flushing control component.

[0012] Preferably, a reinforced flushing pipe is provided on the bottom side of the water seal bowl near the drain outlet. The inlet of the reinforced flushing pipe is connected to the water supply end of the intelligent flushing control component, and its outlet is opened towards the second overflow area of ​​the water seal bowl. The outlet of the reinforced flushing pipe is a flat flared structure, and the width of the flat flared structure extends laterally along the bottom of the water seal bowl.

[0013] A smart toilet includes: a water-saving squat toilet seat as described in any one of the above, a smart flushing control component, a seat ring assembly, and a lid assembly. The smart flushing control component is disposed in the toilet seat body on one side of the toilet cavity. The seat ring assembly is rotatably disposed on the toilet seat body and surrounds the toilet cavity. The lid assembly is rotatably disposed over the toilet cavity.

[0014] Preferably, the intelligent flushing control component includes a control device, a water tank, and a flushing pump. The water tank is located in the water tank cavity behind the toilet seat body. The flushing pump is located inside the water tank, and the outlet of the flushing pump can be connected to the inlet of the annular flushing pipe and the inlet of the reinforced flushing pipe, respectively. The control device is located on the toilet seat body and is signal-connected to the flushing pump.

[0015] Preferably, the seat ring assembly includes a seat ring body and a foot pedal panel. The seat ring body and the foot pedal panel are hinged to the toilet seat body around the toilet cavity, and the foot pedal panel is located below the seat ring body. The front end of the foot pedal panel is symmetrically provided with anti-slip sliders. The length of the anti-slip sliders does not exceed half the length of the foot pedal panel, and they are provided with anti-slip textures.

[0016] The beneficial effects of this invention are: This invention provides a water-saving squat toilet seat and a smart toilet. It uses a water-seal bowl overflow drainage structure to replace the traditional siphon bend, eliminating bends and dead angles in the drainage channel, preventing waste accumulation and blockage, and significantly reducing the difficulty of unclogging and maintenance. There is no need to fill the siphon pipe to activate the siphon effect; simply raising the liquid level inside the water-seal bowl is sufficient for overflow drainage. Combined with a ring-shaped flushing pipe and a reinforced flushing pipe at the bottom, it effectively reduces the amount of water used per flush, resulting in significant water savings. Furthermore, odor isolation is achieved solely through the static water retention inside the water-seal bowl, eliminating the need for a flap valve and a floating plug. The use of movable sealing components avoids the problems of odor backflow and leakage caused by long-term immersion, aging, and jamming of rubber seals, thus improving the product's operational stability and service life. The entire toilet seat is made of ceramic in one piece, with a simplified structure, reducing the difficulty of the manufacturing process and the risk of assembly and sealing. The product has the dual function of a sitting toilet and a squat toilet, which can adapt to different usage habits and public health needs. With the intelligent flushing control component, it can realize automatic sensing flushing and adjustable water volume, further improving the convenience of use and the precision of water conservation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a water-saving squat toilet seat according to Embodiment 1 of the present invention.

[0018] Figure 2 This is a cross-sectional reference drawing of a water-saving squat toilet seat according to Embodiment 1 of the present invention.

[0019] Figure 3 This is a three-dimensional sectional view of a water-saving squat toilet seat according to Embodiment 1 of the present invention.

[0020] Figure 4 and Figure 5 This is a cross-sectional reference diagram of a water-saving squat toilet seat according to Embodiment 2 of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of a smart toilet according to Embodiment 3 of the present invention.

[0022] Figure 7 This is a cross-sectional reference view of a smart toilet according to Embodiment 3 of the present invention.

[0023] In the diagram: 1. Toilet seat body; 2. Water seal bowl; 21. First water storage area; 22. Second overflow area; 3. Drain chamber; 4. Toilet chamber; 5. Sewage outlet; 6. Drain interface; 61. Horizontal drain outlet; 62. Vertical drain outlet; 7. Circular flushing pipe; 8. Reinforced flushing pipe; 9. Seat ring assembly; 91. Seat ring body; 92. Foot pedal panel; 921. Foot pedal anti-slip block; 10. Water tank cavity; 11. Cover assembly; 12. Intelligent flushing control assembly; 121. Water tank; 122. Flushing pump.

[0024] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1 like Figure 1 and 2 As shown, a water-saving squat toilet seat includes: a toilet seat body 1, a water seal bowl 2, and a drain cavity 3; the toilet seat body 1 is provided with a toilet chamber 4, and a drain outlet 5 is provided at the lower part of the rear wall of the toilet chamber 4; the water seal bowl 2 is suspended below the drain outlet 5 and is connected to the drain outlet 5 through a drain pipe; the water seal bowl 2 is divided into a first water storage area 21 and a second overflow area 22 that are interconnected by the drain pipe; one end of the drain pipe is connected to the drain outlet 5 at the lower part of the rear wall of the toilet chamber 4, and the other end extends into the water seal bowl 2 as a water outlet; the lower end of the drain pipe is not higher than the overflow water level of the water seal bowl 2; the drain cavity 3 is arranged around the outside of the water seal bowl 2 and can receive the sewage overflowing from the second overflow area 22 of the water seal bowl 2; the drain cavity 3 can be connected to an external sewage pipe.

[0027] It should be noted that the toilet seat body 1 serves as the overall supporting base, and the internally formed toilet chamber 4 is used to receive excrement and flushing water. The drain outlet 5 opened at the lower part of the rear wall of the toilet chamber 4 serves as the initial channel for the discharge of waste from the toilet chamber 4. The water seal bowl 2, suspended below the drain outlet 5, is used to retain water for odor control. The drain pipe connects the drain outlet 5 to the inside of the water seal bowl 2, guiding the waste and flushing water discharged from the toilet chamber 4 into the water seal bowl 2. The drain pipe extends into the water seal bowl 2, naturally dividing the internal space of the water seal bowl 2 into a first water storage area 21 and a second overflow area 22 that are interconnected. The water in the two areas flows freely, keeping the liquid level consistent. Under normal conditions, the outlet end of the drain pipe is submerged in the water in the water seal bowl 2, and the lower end of the outlet end of the drain pipe is not higher than the overflow water level of the water seal bowl 2. The static water in the water seal bowl 2 forms a stable odor barrier, preventing sewer odors from entering the toilet chamber 4 in the opposite direction along the drain pipe. During flushing, the flushing water carries the waste into the drain pipe through the drain outlet 5, and then flows from the drain pipe outlet into the first water storage area 21 of the water seal bowl 2. As flushing water continues to be injected, the overall liquid level in the water seal bowl 2 continues to rise. When the liquid level reaches the overflow level, the water carrying the waste overflows naturally from the second overflow area 22 over the edge of the water seal bowl 2. The overflow discharge is achieved solely by the weight of the water, without the need to form a siphon negative pressure or require additional moving components to control the flow. The drainage cavity 3, which surrounds the outside of the water seal bowl 2, receives all the sewage and waste overflowing from the second overflow area 22, and then transports the collected waste to the external drain pipe through its own cavity channel, completing the complete discharge process.

[0028] Furthermore, such as Figure 2 As shown, the drain pipe extends downwards at an incline from the drain outlet 5 toward the interior of the water seal bowl 2 along its length direction, and the diameter of the drain pipe gradually decreases from its inlet end to its outlet end, so that the radial ratio of the first water storage area 21 to the second overflow area 22 of the water seal bowl 2 is 1:1-1.5.

[0029] It should be noted that the drain pipe extends downwards and inclines from the drain outlet 5 toward the interior of the water seal bowl 2 along its length. This allows the waste and flushing water entering the pipe to slide smoothly down the inclined pipe wall under their own weight, reducing the amount of waste stuck on the inner wall and improving the smoothness of the drain. At the same time, it guides the water flow to flow smoothly into the first water storage area 21 of the water seal bowl 2, reducing the risk of surface turbulence and splashing caused by water flow impact. The diameter of the drain pipe gradually decreases from the inlet end to the outlet end. According to the principle of fluid continuity, at the same flushing flow rate, the narrowing of the pipe diameter will increase the water flow velocity inside the pipe, forming an accelerated jet effect. This enhances the water flow's carrying force on the waste, allowing the waste to be quickly flushed into the water seal bowl by the high-speed water flow. 2. At the bottom, to prevent dirt from accumulating at the pipe opening, and at the same time to accelerate the water outflow, it can agitate the water in the bowl and push the dirt towards the second overflow area 22; the radial ratio of the first water storage area 21 and the second overflow area 22 of the water seal bowl 2 is 1:1 to 1:1.5. This ratio ensures that the first water storage area 21 has enough space to receive the water and dirt discharged from the sewage pipe and buffer the impact of the water flow, while also ensuring that the second overflow area 22 has sufficient overflow perimeter and flow area to ensure that the sewage can be evenly and quickly overflowed after the water level rises, avoiding the backflow of water back into the sewage pipe due to slow overflow, and balancing the water flow state of the two areas to maintain the entire overflow sewage discharge process smoothly and controllably.

[0030] Furthermore, such as Figure 2 As shown, the drain cavity 3 is a funnel-shaped shell with an open top and a constricted bottom. The upper opening of the drain cavity 3 is sealed to the outer wall of the toilet chamber 4. The water seal bowl 2 is suspended in the center of the drain cavity 3. The constricted bottom end of the drain cavity 3 forms a drain interface 6 for connecting to an external sewage pipe.

[0031] It should be noted that the drain chamber 3 adopts a funnel-shaped shell structure with an open top and a narrowing bottom. The large opening at the top completely surrounds the entire overflow perimeter of the water seal bowl 2, ensuring that sewage and waste overflowing from the water seal bowl 2 are completely collected and will not splash or leak outwards. The narrowing structure at the bottom can gather and collect the overflow sewage, allowing the water flow to converge to the bottom under the action of gravity, increasing the sewage flow rate and preventing waste from accumulating and stagnating at the bottom of the chamber. The upper opening of the drain chamber 3 is sealed to the outer wall of the toilet chamber 4, forming a closed upper space between the drain chamber 3 and the outer wall of the toilet chamber 4. This prevents sewer odors from spreading outwards from the upper part of the chamber and fixes the installation position of the drain chamber 3, ensuring the relative position of the chamber and the water seal bowl 2 is stable and preventing displacement or misalignment over long-term use that would affect the overflow collection effect. The water seal bowl 2 is suspended in the center of the drain cavity 3, creating a uniform annular overflow gap between the water seal bowl 2 and the inner wall of the drain cavity 3. This ensures sufficient and uniform overflow space in the second overflow area 22, allowing sewage to evenly overflow into the drain cavity 3 along the periphery of the water seal bowl 2. This avoids uneven water flow and splashing caused by unilateral overflow. Simultaneously, the suspended arrangement provides sufficient confluence space between the bottom of the water seal bowl 2 and the bottom of the drain cavity 3, preventing overflowing sewage from directly impacting the bottom of the cavity and causing backflow. The constricted end at the bottom of the drain cavity 3 forms a drainage interface 6 for connection to external sewage pipes. The constricted diameter facilitates matching and sealing with standard sewage pipes, and the constricted water flow has a higher velocity, allowing for smooth discharge into the external sewage network and reducing the probability of blockage at the interface.

[0032] Furthermore, the toilet seat body 1, water seal bowl 2, drain pipe and drain cavity 3 are integrally formed. The upper end of the water seal bowl 2 is fixedly connected to the lower end of the drain pipe. A water tank receiving cavity 10 is correspondingly provided behind the toilet seat body 1 on one side of the toilet cavity 4.

[0033] It should be noted that the toilet seat body 1, water seal bowl 2, drain pipe, and drain cavity 3 are integrally molded, eliminating splicing gaps and assembly interfaces between components. This fundamentally avoids the risk of sealing leakage caused by separate connections. At the same time, the integrally fired structure ensures a smooth transition of the inner walls at the joints of each cavity, eliminating steps or protrusions that easily accumulate dirt and reducing the probability of dirt buildup. The upper end of the water seal bowl 2 is fixedly connected to the lower end of the drain pipe, ensuring a precise and constant height of the drain pipe outlet, maintaining the designed water seal height, avoiding water level fluctuations caused by loose connections, and ensuring the long-term reliability of the water seal's odor-proof effect. The water tank cavity 10 can house the flushing water supply components inside the toilet seat, eliminating the need for an external independent water tank 121. This reduces the overall space occupied by the product, shortens the water supply pipeline distance, reduces water flow resistance, improves flushing response speed, and provides protective installation space for water tank 121, flush pump 122, and other water supply components, making the overall product structure more compact and regular, facilitating on-site installation and daily maintenance.

[0034] Furthermore, such as Figure 2 As shown, the outlet end of the drain pipe is submerged below the water surface in the water seal bowl 2, and the vertical distance between the water surface in the water seal bowl 2 and the lower end face of the outlet end of the drain pipe constitutes the water seal height; the water seal height is not less than 20 mm.

[0035] It should be noted that the outlet end of the sewage pipe is submerged below the water surface inside the water seal bowl 2. The static water seal blocks the outlet of the sewage pipe, preventing sewer odors from flowing back into the toilet chamber 4, thus forming a liquid seal odor barrier. The vertical distance between the water surface inside the water seal bowl 2 and the lower end of the sewage pipe outlet constitutes the water seal height, which is the core parameter for odor isolation performance. The water seal height is no less than 20 mm, which can offset the drop in water level caused by water evaporation and liquid surface fluctuations, preventing backflow of odors due to water seal failure, while also preventing the overflow start-up water level from rising, thus balancing the needs of stable odor isolation and water-saving sewage discharge.

[0036] Furthermore, such as Figure 2 As shown, an annular flushing pipe 7 is provided around the top of the toilet cavity 4 on the inner wall of the toilet seat body 1. Multiple drain outlets facing the inside of the toilet cavity 4 are spaced apart on the annular flushing pipe 7. The water outlet direction is adapted to the curvature of the inner wall of the toilet cavity 4. The annular flushing pipe 7 is connected to the water supply end of the intelligent flushing control component 12.

[0037] It should be noted that the annular flushing pipe 7, which surrounds the top of the toilet cavity 4 on the inner wall of the toilet seat body 1, can evenly distribute the flushing water flow to the entire circumference of the toilet cavity 4, ensuring that all areas of the cavity wall can be flushed and covered. Multiple drain outlets on the pipe, which face the inside of the toilet cavity 4, can disperse the water flow to form a continuous water curtain, which can thoroughly flush the dirt attached to the inner wall of the cavity downwards. The water outlet direction is adapted to the curvature of the inner wall of the toilet cavity 4, so that the water flows along the cavity wall and down, reducing water splashing and improving the cleanliness of flushing. The annular flushing pipe 7 is connected to the water supply end of the intelligent flushing control component 12, which can control the start and stop of flushing and the water supply in a unified manner to achieve automated and precise water supply and match the water demand for overflow and sewage discharge.

[0038] Furthermore, such as Figure 3 As shown, a reinforced flushing pipe 8 is provided on the bottom side of the water seal bowl 2 near the drain outlet 5. The inlet of the reinforced flushing pipe 8 is connected to the water supply end of the intelligent flushing control component 12, and its outlet is opened towards the second overflow area 22 of the water seal bowl 2. The outlet of the reinforced flushing pipe 8 is a flat flared structure, and the width of the flat flared structure extends laterally along the bottom of the water seal bowl 2.

[0039] It should be noted that the reinforced flushing pipe 8, located on the side of the bottom of the water seal bowl 2 near the drain outlet 5, is positioned directly opposite the sedimentation area where waste falls into the water seal bowl 2. Its inlet is connected to the water supply end of the intelligent flushing control component 12, allowing for controlled, on-demand water supply and coordinated with the annular flushing pipe 7 in a sequential manner. The outlet of the flushing pipe faces the second overflow area 22, directly outputting water flow to push the waste at the bottom of the bowl towards the overflow side, accelerating the discharge of waste with the overflow and preventing waste from accumulating and stagnating. The outlet adopts a flat, flared structure extending laterally along the bottom of the water seal bowl 2, which can form a wide horizontal water curtain, completely covering the horizontal range of the bottom of the bowl, eliminating flushing dead corners, and improving the overall efficiency of pushing waste at the bottom.

[0040] The working principle and usage method of a water-saving squat toilet seat in this embodiment are as follows: This embodiment provides a water-saving squat toilet seat and a smart toilet. By employing a suspended water seal bowl 2 in conjunction with a downwardly extending drain pipe, waste is smoothly carried into the water seal bowl 2 by the flushing water. Utilizing the water level balance between the first water storage area 21 and the second overflow area 22 formed by the drain pipe within the water seal bowl 2, as flushing water is continuously injected, the water level in the water seal bowl 2 rises to the overflow level and naturally overflows into the drain cavity 3 surrounding the outside of the water seal bowl 2, eventually draining into the external drain pipe. The entire drainage process relies entirely on water overflow, eliminating the need for any siphon bends or mechanical valves. This fundamentally avoids the inherent defects of traditional siphon toilets, such as the winding and convoluted siphon pipes, the presence of dead corners leading to blockages, and the requirement for a large amount of clean water to fill the pipes to activate the siphon effect, thus preventing extreme water conservation. It also completely avoids the problems of direct-flush toilets, where mechanical components such as flaps and sealing valves are prone to aging and failure due to prolonged immersion in sewage, resulting in poor sealing and odor backflow. The design addresses issues such as water filling; simultaneously, the gradually decreasing diameter of the drain pipe from the inlet to the outlet accelerates the flow of waste. Combined with a radial ratio of 1:1 to 1:1.5 between the first water storage area 21 and the second overflow area 22 of the water seal bowl 2, this ensures waste is collected within the bowl and discharged smoothly. The drain pipe outlet is completely submerged below the water surface, and the water seal height is no less than 20 mm, guaranteeing a long-term stable odor-blocking effect. Furthermore, the integrated ceramic structure effectively avoids the risk of leakage from separate connections. The annular flushing pipe 7, along with the reinforced flushing pipe 8, achieves comprehensive flushing of the inner wall of the toilet chamber 4 and the bottom of the water seal bowl 2. The intelligent flushing control component 12 enables precise water usage and automated control, allowing the single flush volume to be controlled between 0.8 liters and 2.5 liters. This ensures strong waste removal capacity while achieving significant water conservation, offering advantages such as simple and reliable structure, excellent anti-clogging performance, convenient installation and maintenance, and wide applicability.

[0041] In use, in a static standby state, the water seal bowl 2 contains a static water level. The outlet of the drain pipe is submerged below the water level, forming a water seal to prevent odors. After normal toilet use, the flushing water is injected into the toilet chamber 4 through the annular flushing pipe 7 and drain outlet on the upper part of the toilet seat body 1. The flushing water flows down the inner wall of the toilet chamber 4 to flush the wall surface, carrying away waste through the drain outlet 5 at the lower part of the rear wall into the drain pipe. It then flows rapidly into the first water storage area 21 inside the water seal bowl 2 along the downward-sloping drain pipe with a gradually decreasing diameter. As the flushing water continues to be injected... As the water level in the water seal bowl 2 gradually rises, the waste moves towards the second overflow area 22 under the push of the water flow from the enhanced flushing pipe 8. When the overall water level in the bowl exceeds the overflow level, the water containing waste naturally overflows from the edge of the bowl in the second overflow area 22 and falls into the drain cavity 3 surrounding the outside of the water seal bowl 2. It is then discharged into the external sewage pipe through the drain port 6 at the lower end of the drain cavity 3. After the flushing stops, the water level in the water seal bowl 2 falls back to the static equilibrium position below the overflow level, and a water seal is formed to prevent odor, ready for the next use.

[0042] Example 2 like Figure 4 and Figure 5 As shown, a water-saving squat toilet seat according to this embodiment includes: a toilet seat body 1, a water seal bowl 2, and a drain cavity 3; the toilet seat body 1 is provided with a toilet chamber 4, and a drain outlet 5 is provided at the lower part of the rear wall of the toilet chamber 4; the water seal bowl 2 is suspended below the drain outlet 5 and is connected to the drain outlet 5 through a drain pipe; the water seal bowl 2 is divided by the drain pipe into a first water storage area 21 and a second overflow area 22 that are interconnected; one end of the drain pipe is connected to the toilet chamber 4. The drain outlet 5 is opened at the lower part of the rear wall, and the other end extends into the water seal bowl 2 as the water outlet. The drain pipe is formed by the rear wall and the front wall of the toilet chamber 4. The seal bowl 2 is integrally formed with the rear wall of the toilet chamber (4). The lower end of the drain pipe is not higher than the overflow water level of the water seal bowl 2. The drain cavity 3 is arranged around the outside of the water seal bowl 2 and can receive the sewage overflowing from the second overflow area 22 of the water seal bowl 2. The drain cavity 3 can be connected to the external sewage pipe. The drain cavity 3 is a funnel-shaped shell with an open top and a constricted bottom. The upper opening of the drain cavity 3 is sealed to the outer wall of the toilet chamber 4 around the water seal bowl 2. The water seal bowl 2 is suspended in the center of the drain cavity 3. The constricted bottom end of the drain cavity 3 forms a drain interface 6 for connecting to an external sewage pipe. The axis of the drain interface 6 is horizontally arranged. The drain interface 6 is provided with a horizontal drain outlet 61 and a vertical drain outlet 62. The horizontal drain outlet 61 is horizontally oriented towards the outside of the toilet seat body 1, and the vertical drain outlet 62 is vertically downward.

[0043] It should be noted that the drainage cavity 3 adopts a funnel-shaped structure with a large opening at the top and horizontal contraction on the sides. The upper opening completely receives the sewage and sludge overflowing from the water seal bowl 2. The bottom of the cavity is provided with a guide slope that slopes from high to low towards the drainage interface 6, so that the collected sewage flows naturally to the horizontal drainage interface 6 under the action of gravity, avoiding the formation of dead corners for siltation at the bottom of the cavity. The drainage interface 6 is arranged horizontally along its axis, and can be directly connected and sealed with the horizontal sewage pipe pre-embedded in the wall. This is suitable for the installation scenario of wall-mounted toilets, eliminating the need to drill a sewage interface in the ground, reducing damage to the building floor structure, and facilitating the later inspection and dredging of the sewage pipe. The horizontal drain outlet 61 and vertical drain outlet 62 on the drainage interface 6 can be connected to any suitable sewage pipe by closing any drain outlet. This structure only adjusts the layout direction of the drainage interface 6, and fully retains the core design of overflow sewage discharge of the water seal bowl 2, no siphon bend, and no movable seal, so that the product can cover both the bottom and horizontal sewage pipe layouts at the same time, greatly improving the product's scene adaptability.

[0044] Compared with Example 1: This embodiment provides a water-saving squat toilet seat, which adjusts the vertically downward drain interface 6 to a horizontally arranged drain interface 6. While retaining all core performance characteristics such as overflow sewage discharge, water seal odor isolation, water saving and anti-clogging, it adapts to the installation requirements of wall-mounted building sewage pipes. Assembly can be completed without modifying the ground sewage structure, thus broadening the applicable installation scenarios of the product. At the same time, the horizontal drain interface 6 is easy to connect with the wall pipes, and the sealing method is mature and reliable, which can reduce the construction difficulty and leakage risk of on-site installation. In specific implementation, the outer wall of the drain interface 6 is provided with an annular sealing groove, and a sealing ring is embedded in the annular sealing groove for sealing cooperation when connected with external sewage pipes.

[0045] Example 3 like Figure 6 and Figure 7 As shown, an intelligent toilet according to this embodiment includes: a water-saving squat toilet seat as described in any of the above claims, an intelligent flushing control component 12, a seat ring assembly 9, and a cover assembly 11. The intelligent flushing control component 12 is disposed inside the toilet seat body 1 on one side of the toilet cavity 4. The seat ring assembly 9 is rotatably disposed on the toilet seat body 1 and is disposed around the toilet cavity 4. The cover assembly 11 is rotatably disposed over the toilet cavity 4.

[0046] It should be noted that the toilet seat is the basic supporting structure, integrating the core functions of overflow drainage and dual-use (sitting and squatting). The intelligent flushing control component 12 is located inside the toilet seat body 1 on one side of the toilet cavity 4, used to uniformly control the flushing timing and water supply, automatically matching the water demand for overflow drainage to achieve precise water-saving flushing. The seat ring component 9 is rotatably mounted on the toilet seat body 1 and surrounds the toilet cavity 4. When the seat ring component 9 is rotated to the horizontal position, it allows the user to use it in a sitting position. When rotated to the upright position, it exposes the toilet cavity 4 and the load-bearing feet at the top of the toilet seat body 1. It is designed for use in a squatting position. The switching between the two usage modes can be completed by flipping the same component. The cover assembly 11 can be flipped to cover the toilet chamber 4. When the smart toilet is not in use, the cover assembly 11 is flipped to a horizontal position to close the opening of the toilet chamber 4, preventing foreign objects from falling in and blocking the upward escape of odors from the toilet chamber 4. When in use, the cover assembly 11 is flipped to an upright position to expose the toilet chamber 4. The flipping action of the cover assembly 11 is independent of the seat ring assembly 9. The two rotate around the hinge axis at the rear of the toilet seat body 1 without interfering with each other.

[0047] Furthermore, the intelligent flushing control component 12 includes a control device, a water tank 121, and a flushing pump 122. The water tank 121 is located in the water tank receiving cavity 10 behind the toilet seat body 1. The flushing pump 122 is located in the water tank 121, and the outlet of the flushing pump 122 can be connected to the inlet of the annular flushing pipe 7 and the inlet of the reinforced flushing pipe 8, respectively. The control device is located on the toilet seat body 1 and is signal-connected to the flushing pump 122.

[0048] It should be noted that the water tank 121 is located within the water tank cavity 10 at the rear of the bucket base body 1. It stores flushing water and provides internal storage, optimizing the overall structural layout of the product. The flushing pump 122 is built into the water tank 121, directly drawing clean water and delivering it to the annular flushing pipe 7 and the reinforced flushing pipe 8, providing pressurized power for both flushing paths and ensuring effective water flow for rinsing the cavity walls and pushing away dirt from the bottom of the bowl. The control device is located on the bucket base body 1 and is signal-connected to the flushing pump 122. It controls the start / stop duration and output power of the flushing pump 122, precisely regulating the flushing sequence and water consumption to match overflow discharge requirements, achieving automated water-saving flushing.

[0049] Furthermore, the seat ring assembly 9 includes a seat ring body 91 and a foot pedal panel 92. The seat ring body 91 and the foot pedal panel 92 are hinged to the toilet seat body 1 around the toilet cavity 4, and the foot pedal panel 92 is located below the seat ring body 91. The front end of the foot pedal panel 92 is symmetrically provided with foot anti-slip sliders 921. The length of the foot anti-slip sliders 921 does not exceed half the length of the foot pedal panel 92, and anti-slip textures are provided on them.

[0050] It should be noted that the footrest panel 92 is located below the seat ring body 91. When using the toilet normally, the seat ring body 91 can be lowered to cover the footrest panel 92 without interfering with daily toilet function. When switching to squat toilet mode, the seat ring body 91 can be flipped up to expose the footrest area. The symmetrically arranged anti-slip blocks 921 at the front of the footrest panel 92 correspond to the standing position of the user's feet, providing a stable point of support for squatting users. The length of the anti-slip blocks 921 does not exceed half the length of the footrest panel 92, adapting to the span of the user's standing posture and avoiding unnecessary space occupation. The anti-slip texture on the surface of the anti-slip blocks increases the friction of the contact surface, preventing slippage and improving the safety and stability of squat toilet use.

[0051] The working principle and usage method of a smart toilet according to this embodiment: This embodiment provides a smart toilet with a water-saving squat toilet seat as the main body. The toilet chamber 4 inside the toilet seat body 1 receives waste and flushing water. The drain outlet 5 at the lower part of the rear wall is connected to a suspended water seal bowl 2 through an inclined and narrowed drain pipe. The drain pipe extends into the bowl and divides it into an interconnected water storage area and an overflow area. The water outlet is submerged in the bowl and normally stores water to form an effective water seal, preventing sewer odors from entering the toilet chamber 4 in the reverse direction. The water tank 121 is built into the water tank receiving cavity 10 behind the toilet seat. The flushing pump 122 draws clean water and delivers it to the annular flushing pipe 7 at the top of the toilet cavity 4 and the reinforced flushing pipe 8 at the bottom of the water seal bowl 2. The annular pipe evenly distributes water around the cavity to flush away dirt attached to the inner wall. The reinforced flushing pipe 8 forms a horizontal water curtain with a flat flared opening, pushing the dirt deposited at the bottom of the bowl to the overflow side. The control device uniformly regulates the start and stop of the flushing pump 122 and the water supply, so that the liquid level in the water seal bowl 2 continues to rise and overflows naturally. The sewage carrying the dirt falls into the funnel-shaped drain cavity 3 surrounding the outside of the water seal bowl 2, and flows into the external sewage pipe through the bottom drain interface 6. The entire process relies on the weight of the water to achieve overflow sewage discharge, without the need to install a siphon bend or movable sealing components. The seat ring assembly 9 is hinged to the toilet seat body 1. When the seat ring body 91 is lowered, it provides support for sitting posture. When flipped up, it exposes the foot panel 92 underneath. The anti-slip structure at the front end of the panel ensures the stability of squatting posture. The cover assembly 11 can be flipped to cover the toilet cavity 4, blocking the spread of odors and maintaining the clean appearance of the sanitary ware.

[0052] When in use, in the toilet sitting mode, keep the seat body 91 down. After the user sits down, the seat heating function can be turned on to improve the comfort of use. After the user leaves, the control device receives a signal and automatically starts the flush pump 122 to draw clean water from the water tank 121. First, it flushes the inner wall of the toilet chamber 4 through the ring flush pipe 7, and then simultaneously opens the enhanced flush pipe 8 to push the sediment at the bottom of the water seal bowl 2 with a flat and wide water flow. The sediment rises with the liquid level and overflows from the second overflow area 22 to the drain chamber 3 and is discharged into the external sewage pipe. After flushing, the water supply is automatically stopped and the water seal odor-proof state is restored. In the squatting mode, the seat body 91 is flipped up to expose the foot panel 92 below. The user steps on the foot anti-slip block 921 at the front of the panel to maintain a squatting position. After use, flushing can be triggered by the sensor or manually. The two water paths work together to complete the overflow sewage discharge. When not in use, the cover assembly 11 can be closed to cover the toilet chamber 4, preventing the spread of odors and keeping the sanitary ware clean.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

[0054] In the description of this invention, it should be understood that the terms "upper", "lower", "upper end", "lower end", "upper surface", "lower surface", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication 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.

Claims

1. A water-saving squat toilet seat, characterized in that, include: The toilet seat body (1), water seal bowl (2), and drain cavity (3) are provided. The toilet seat body (1) is provided with a toilet chamber (4). The lower part of the rear wall of the toilet chamber (4) is provided with a drain outlet (5). The water seal bowl (2) is suspended below the drain outlet (5) and is connected to the drain outlet (5) through a drain pipe. The water seal bowl (2) is separated by the drain pipe to form a first water storage area (21) and a second overflow area (22) that are interconnected. One end of the drain pipe is connected to the drain outlet (5) opened at the lower part of the rear wall of the toilet chamber (4), and the other end extends into the water seal bowl (2) as the water outlet. The lower end of the drain pipe is not higher than the overflow water level of the water seal bowl (2). The drain cavity (3) is arranged around the outside of the water seal bowl (2) and can receive the sewage overflowing from the second overflow area (22) of the water seal bowl (2). The drain cavity (3) can be connected to the external sewage pipe.

2. The water-saving squat toilet seat as described in claim 1, characterized in that: The drain pipe extends downwards from the drain outlet (5) toward the interior of the water seal bowl (2) along its length direction, and the diameter of the drain pipe gradually decreases from its inlet end to its outlet end, so that the radial ratio of the first water storage area (21) and the second overflow area (22) of the water seal bowl (2) is 1:1-1.

5.

3. A water-saving squat toilet seat as described in claim 2, characterized in that: The drain cavity (3) is a funnel-shaped shell with an open top and a constricted bottom. The upper opening of the drain cavity (3) is sealed to the outer wall of the toilet chamber (4). The water seal bowl (2) is suspended in the center of the drain cavity (3). The bottom constricted end of the drain cavity (3) forms a drain interface (6) for connecting with an external sewage pipe.

4. A water-saving squatting toilet seat as described in claim 3, characterized in that: The toilet seat body (1), water seal bowl (2), sewage pipe and drain cavity (3) are integrally formed. The upper end of the water seal bowl (2) is fixedly connected to the lower end of the sewage pipe. The sewage pipe is formed by the rear wall and front wall of the toilet cavity (4). The water seal bowl (2) is integrally formed with the rear wall of the toilet cavity (4). A water tank cavity (10) is provided behind the toilet seat body (1) on one side of the toilet cavity (4). A horizontal drain outlet (61) and a vertical drain outlet (62) are provided on the drain interface (6). The horizontal drain outlet (61) is horizontally facing the outside of the toilet seat body (1), and the vertical drain outlet (62) is vertically facing down.

5. A water-saving squatting toilet seat as described in claim 1, characterized in that: The outlet end of the drain pipe is submerged below the water surface in the water seal bowl (2), and the vertical distance between the water surface in the water seal bowl (2) and the lower end face of the outlet end of the drain pipe constitutes the water seal height; the water seal height is not less than 20 mm.

6. A water-saving squatting toilet seat as described in claim 1, characterized in that: The inner wall of the toilet seat body (1) is provided with an annular flushing pipe (7) around the top of the toilet cavity (4). The annular flushing pipe (7) is provided with multiple drain outlets that face the inside of the toilet cavity (4) at intervals. The water outlets are adapted to the curvature of the inner wall of the toilet cavity (4). The annular flushing pipe (7) is connected to the water supply end of the intelligent flushing control component (12).

7. A water-saving squatting toilet seat as described in claim 6, characterized in that: A reinforced flushing pipe (8) is provided on the bottom side of the water seal bowl (2) near the drain outlet (5). The inlet of the reinforced flushing pipe (8) is connected to the water supply end of the intelligent flushing control component (12), and its outlet is opened towards the second overflow area (22) of the water seal bowl (2). The outlet of the reinforced flushing pipe (8) is a flat flared structure, and the width of the flat flared structure extends laterally along the bottom of the water seal bowl (2).

8. A smart toilet, characterized in that, include: The water-saving squat toilet seat, intelligent flushing control component (12), seat ring component (9) and cover component (11) as described in any one of claims 1-7, wherein the intelligent flushing control component (12) is disposed in the toilet seat body (1) on one side of the toilet cavity (4), the seat ring component (9) is rotatably disposed on the toilet seat body (1) and is disposed around the toilet cavity (4), and the cover component (11) is rotatably disposed over the toilet cavity (4).

9. A smart toilet as described in claim 8, characterized in that: The intelligent flushing control component (12) includes a control device, a water tank (121) and a flushing pump (122). The water tank (121) is located in the water tank cavity (10) behind the toilet seat body (1). The flushing pump (122) is located in the water tank (121), and the outlet of the flushing pump (122) can be connected to the inlet of the annular flushing pipe (7) and the inlet of the reinforced flushing pipe (8) respectively. The control device is located on the toilet seat body (1) and is signal connected to the flushing pump (122).

10. A smart toilet as described in claim 8, characterized in that: The seat assembly (9) includes a seat body (91) and a foot pedal panel (92). The seat body (91) and the foot pedal panel (92) are hinged to the toilet seat body (1) around the toilet cavity (4). The foot pedal panel (92) is located below the seat body (91). The front end of the foot pedal panel (92) is symmetrically provided with foot anti-slip blocks (921). The length of the foot anti-slip blocks (921) does not exceed half the length of the foot pedal panel (92), and anti-slip textures are provided on them.

Images