A safe heated smart toilet

By centrally arranging electric heating elements inside the water tank and using hot water circulation to heat the seat, the safety hazards of electric heating in toilet seats are solved, improving safety and reliability, simplifying the maintenance process, and ensuring the safety and comfort of users.

CN224281480UActive Publication Date: 2026-05-26ZHEJIANG MOERSHU INTELLIGENT SANITARY WARE CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG MOERSHU INTELLIGENT SANITARY WARE CO LTD
Filing Date
2025-05-08
Publication Date
2026-05-26

Smart Images

  • Figure CN224281480U_ABST
    Figure CN224281480U_ABST
Patent Text Reader

Abstract

This utility model provides a safe heated smart toilet, including a main body and a seat. The seat is hinged to the main body, and a water tank is fixedly connected to the main body. A flushing system is installed inside the water tank. A controller is installed on the side wall of the main body and is electrically connected to the flushing system. A heating groove is formed on the seat, and an inlet pipe and an outlet pipe are connected to the seat. The inlet pipe and outlet pipe are respectively connected to the two ends of the heating groove. A partition is fixed inside the water tank, dividing the water tank into a cold water zone and a hot water zone. An electric heating element and a water pump are connected to the inner wall of the hot water zone. The ends of the inlet pipe and outlet pipe away from the heating groove pass into the hot water zone. The outlet end of the water pump is connected to the inlet pipe. Both the electric heating element and the water pump are electrically connected to the controller. An exhaust vent is provided on the side wall of the hot water zone to improve safety.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to smart toilets, and more particularly, to a safe heated smart toilet. Background Technology

[0002] As an indispensable sanitary ware in modern bathroom environments, the comfort of toilets is receiving increasing attention. Especially in cold seasons, a cold toilet seat can greatly affect the user experience. Therefore, various smart toilet seats with heating functions have appeared on the market.

[0003] Existing toilet seat heating technologies mostly use electric heating. For example, Chinese Patent Publication No. CN221654161U discloses a heating device for an intelligent toilet seat, whose heating structure uses a heating coil. This heating coil is set inside the seat and is fixed and protected by a connecting and sealing structure on the base plate to prevent moisture from entering the seat.

[0004] However, this method of electric heating, which places the heating coil inside the seat, poses certain safety hazards. Most toilet seats are currently made of materials such as plastic. Over time, these materials may become brittle or even break due to aging, stress, or environmental factors. If the seat breaks, the internal heating coil will be exposed and come into direct contact with the user's skin, which could easily threaten the user's safety. Therefore, existing technology has shortcomings in terms of long-term safety. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a safe heated smart toilet to improve safety.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a safe heated smart toilet, including a main body and a seat, the seat being hinged to the main body, a water tank being fixedly connected to the main body, a flushing system being installed inside the water tank, a controller being installed on the side wall of the main body, the controller being electrically connected to the flushing system, a heating groove being provided on the seat, an inlet pipe and an outlet pipe being connected to the seat, the inlet pipe and the outlet pipe being respectively connected to the two ends of the heating groove, a partition being fixed inside the water tank, the partition dividing the water tank into a cold water zone and a hot water zone, an electric heating element and a water pump being connected to the inner wall of the hot water zone, the ends of the inlet pipe and the outlet pipe away from the heating groove passing through the hot water zone, the outlet end of the water pump being connected to the inlet pipe, the electric heating element and the water pump being electrically connected to the controller, and an exhaust vent being provided on the side wall of the hot water zone.

[0007] To achieve the above technical solution, the controller drives the electric heating element in the hot water zone to heat the water, producing hot water. The water pump then pumps the hot water into the heating tank of the seat cushion, after which the hot water flows back into the hot water zone for circulation, transferring heat to the seat cushion. In this way, even if the seat cushion is damaged or broken due to long-term use, the user only comes into contact with flowing hot water, completely avoiding the risk of contact with live components. This fundamentally eliminates the electric shock safety threat caused by seat cushion damage in existing technologies, significantly improving product safety. Furthermore, compared to structures that embed heating wires inside the seat cushion, concentrating the main electrical and power components in an easily accessible and operable water tank greatly simplifies system maintenance and repair, reducing the difficulty and cost of troubleshooting and component replacement, making the system more practical and reliable.

[0008] As a preferred embodiment of the present invention, the seat cushion includes an upper mounting part and a lower mounting part. The upper mounting part has an upper water channel and the lower mounting part has a lower water channel. When the upper mounting part and the lower mounting part are fixed, a heating groove is formed between the upper water channel and the lower water channel.

[0009] To achieve the above technical solution, this split design and reassembly method simplifies the manufacturing process and reduces production difficulty and cost compared to drilling holes in a one-piece molded cushion or using more complex molds to form the internal flow channels in one go.

[0010] In a preferred embodiment of this utility model, the partition plate is provided with a connecting hole, the connecting hole connecting the cold water area and the hot water area, and a sealing plate is slidably connected to the partition plate. The sealing plate is driven by a power structure to block or move away from the connecting hole, and the power structure is electrically connected to the controller.

[0011] To achieve the above technical solution, when the water in the hot water zone decreases due to circulation heating, the controller can drive the sealing plate away from the connecting hole, allowing water from the cold water zone to flow into the hot water zone through the connecting hole to replenish it. When the water level in the hot water zone reaches the set height, the controller then drives the sealing plate to block the connecting hole, stopping water replenishment. This controlled water replenishment method ensures that the hot water zone always maintains a sufficient water volume for circulation heating, guaranteeing the continuous and stable operation of the entire hot water heating system.

[0012] In a preferred embodiment of this utility model, the power structure includes a slide bar, a threaded rod, and a power motor. The slide bar is fixed to the partition plate, the sealing plate is slidably connected to the slide bar, the power motor is fixed to the inner wall of the cold water zone, the power shaft of the power motor is fixedly connected to the threaded rod, the threaded rod is threadedly connected to the sealing plate and the axis of the threaded rod is parallel to the axis of the slide bar, and the power motor is electrically connected to the controller.

[0013] To achieve the above technical solution, the rotation of the threaded rod can be precisely controlled by controlling the rotation direction and number of revolutions of the power motor, thereby enabling precise linear movement of the sealing plate and accurately adjusting the opening of the connecting hole. This provides high-precision, repeatable cold water supply flow rate regulation capability. Based on the real-time water level in the hot water zone or preset requirements, the inflow rate and total amount of cold water can be controlled by adjusting the opening of the connecting hole. This effectively avoids problems such as a sudden drop in hot water temperature, reduced heating efficiency, increased energy consumption, and even overflow caused by excessively rapid cold water influx, while also preventing problems such as low hot water level, pump dry-running damage, overheating damage to heating elements, and interruption of hot water supply caused by insufficient or slow water inflow.

[0014] As a preferred embodiment of this utility model, the sealing plate is fixedly connected to an O-ring for contacting the partition plate on the side facing the partition plate, and the inner diameter of the O-ring is larger than the diameter of the connecting hole.

[0015] To achieve the above technical solution, when the power structure drives the sealing plate to the sealing position, the O-ring on the sealing plate is compressed and tightly adheres to the surface of the partition, forming a reliable waterproof sealing barrier. The design of the O-ring's inner diameter being larger than the diameter of the connecting hole ensures that the O-ring can completely surround and cover the connecting hole. This maintains a stable water flow in the hot water area and prevents cold water leakage that dilutes the hot water.

[0016] In a preferred embodiment of this utility model, a capacitive level gauge is fixedly connected to the inner wall of the hot water zone, and the capacitive level gauge is electrically connected to the controller.

[0017] By implementing the above technical solution, the capacitive level gauge can detect the water level in the hot water area in real time and transmit the data to the controller. The controller then uses this water level information to accurately determine the water storage status of the hot water area.

[0018] As a preferred embodiment of this utility model, a water temperature sensor is fixedly connected to the inner wall of the hot water zone, and the water temperature sensor is electrically connected to the controller.

[0019] The above technical solution enables precise sensing of the water temperature in the hot water zone, providing a core basis for the controller to perform accurate and real-time temperature control. This ensures that the temperature of the hot water delivered to the seat cushion is precisely maintained within a preset comfortable and safe range, effectively guaranteeing the user's comfort and avoiding the risk of scalding.

[0020] As a preferred embodiment of this utility model, a filter screen is fixedly connected to the inner wall of the exhaust hole.

[0021] The above technical solution effectively prevents small insects and other impurities from entering the hot water area through the vent by setting up a physical barrier. This avoids the accumulation of impurities in the hot water area, thus preventing damage to precision components such as the water pump, electric heating element, and sensors. At the same time, the hot air generated when the water is heated can pass smoothly through the filter screen.

[0022] As a preferred embodiment of this utility model, a bucket lid is hinged to the main body. The bucket lid is used to cover the outside of the seat cushion. A connecting groove is opened on the bucket lid, and the water inlet pipe and the water outlet pipe pass through the connecting groove.

[0023] By implementing the above technical solution, the connecting groove provides a safe and smooth path for the inlet and outlet water pipes, effectively preventing the inlet and outlet water pipes from being squeezed, bent or excessively rubbed due to the flipping of the bucket lid, thereby preventing damage to the inlet and outlet water pipes and potential water leakage risks, and improving the reliability of the system.

[0024] As a preferred embodiment of this utility model, the partition plate is provided with a heat-insulating cavity.

[0025] The above technical solution achieves excellent thermal insulation through the insulated cavity. This helps reduce heat loss from the hot water zone to the cold water zone and the external environment, lowering the energy consumption required for heating and improving the system's energy efficiency. Compared to solid partitions, less material is used, thus reducing manufacturing costs and the partition's own weight, contributing to the overall lightweight design of the product. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0027] Figure 2 To illustrate the structural diagram of the upper water channel;

[0028] Figure 3 To illustrate the structural diagram of the lower water channel;

[0029] Figure 4 A structural diagram illustrating the main body;

[0030] Figure 5 A schematic diagram illustrating the location of the power structure;

[0031] Figure 6 To illustrate the structural diagram of the sealing plate;

[0032] Figure 7 A structural diagram illustrating the main body;

[0033] Figure 8 A schematic diagram illustrating the position of the capacitive level gauge;

[0034] Figure 9 A schematic diagram showing the location of the connecting hole;

[0035] Figure 10 A block diagram illustrating electrical appliance connections.

[0036] Reference numerals: 1. Main body; 2. Seat cushion; 3. Upper mounting part; 4. Lower mounting part; 5. Upper water channel; 6. Lower water channel; 7. Inlet pipe; 8. Outlet pipe; 9. Bucket lid; 10. Connecting groove; 11. Water tank; 12. Controller; 13. Partition plate; 14. Cold water zone; 15. Hot water zone; 16. Electric heating element; 17. Water pump; 18. Vent; 19. Filter screen; 20. Connecting hole; 21. Sealing plate; 22. Power structure; 23. Sliding strip; 24. Threaded rod; 25. Power motor; 26. O-ring seal; 27. Capacitive level gauge; 28. Water temperature sensor. Detailed Implementation

[0037] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0038] A safe heated smart toilet includes a main body 1 and a seat 2. The seat 2 includes an upper mounting part 3 and a lower mounting part 4. The upper mounting part 3 is located above the lower mounting part 4. An upper water passage groove 5 is formed on the side of the upper mounting part 3 facing the lower mounting part 4, and a lower water passage groove 6 is formed on the side of the lower mounting part 4 facing the upper mounting part 3. When the upper mounting part 3 and the lower mounting part 4 are fixed, the upper water passage groove 5 and the lower water passage groove 6 merge to form a heating groove.

[0039] A water inlet pipe 7 and a water outlet pipe 8 are fixedly connected to the end of the seat cushion 2. The water inlet pipe 7 and the water outlet pipe 8 are respectively connected to the two ends of the heating tank.

[0040] A bucket lid 9 is hinged to the main body. The bucket lid 9 is used to cover the outside of the seat cushion 2. A connecting groove 10 is provided on the bucket lid 9. The water inlet pipe 7 and the water outlet pipe 8 both pass through the connecting groove 10.

[0041] A water tank 11 is integrally connected to the main body 1. A flushing system (not shown in the figure) is installed inside the water tank 11, which is existing technology. A controller 12, which is a PLC controller 12, is installed on the side wall of the main body 1. The controller 12 is electrically connected to the flushing system.

[0042] A vertically arranged partition 13 is fixed inside the water tank 11, and the lower end of the partition 13 is fixedly connected to the bottom wall of the water tank 11. The partition 13 divides the water tank 11 into a cold water zone 14 and a hot water zone 15. An insulated cavity is provided inside the partition 13.

[0043] An electric heating element 16 and a water pump 17 are fixedly connected to the inner wall of the hot water zone 15. The ends of the inlet pipe 7 and outlet pipe 8, away from the heating tank, both extend into the hot water zone 15. The outlet end of the water pump 17 is connected to the inlet pipe 7. Both the electric heating element 16 and the water pump 17 are electrically connected to the controller 12. An exhaust vent 18 is provided on the side wall of the hot water zone 15, located near the upper edge of the zone. A filter screen 19 is fastened to the inner wall of the exhaust vent 18. The filter screen 19 has a pore size of 1mm.

[0044] A connecting hole 20 is provided on the partition 13. The connecting hole 20 connects the cold water zone 14 and the hot water zone 15. A sealing plate 21 is slidably connected to the partition 13. The sealing plate 21 is driven by a power structure 22 to block or move away from the connecting hole 20. The power structure 22 is electrically connected to the controller 12.

[0045] The power structure 22 is located in the cold water zone 14 and includes a slide bar 23, a threaded rod 24, and a power motor 25. The slide bar 23 is fixed to the surface of the partition plate 13 and is vertically arranged. Both ends of the sealing plate 21 are slidably connected to the slide bar 23, which has a T-shaped cross-section. The power motor 25 is vertically arranged, and its power shaft is fixedly connected to the threaded rod 24 via a coupling. The threaded rod 24 is vertically arranged. The threaded rod 24 is threadedly connected to the sealing plate 21, and its axis is parallel to the axis of the slide bar 23. The power motor 25 is electrically connected to the controller 12.

[0046] An O-ring 26 for contacting the partition 13 is fixedly connected to the side of the sealing plate 21 facing the partition 13. The inner diameter of the O-ring 26 is larger than the diameter of the connecting hole 20.

[0047] A vertically mounted capacitive level gauge 27 is fixedly connected to the inner wall of the hot water zone 15, and the capacitive level gauge 27 is electrically connected to the controller 12.

[0048] A water temperature sensor 28 is fixedly connected to the inner wall of the hot water zone 15, and the water temperature sensor 28 is electrically connected to the controller 12.

[0049] The usage process of this utility model is as follows: When a heating command is received, the controller 12 first monitors the water temperature sensor 28 in the hot water zone 15. If the water temperature is lower than the set value, the controller 12 activates the electric heating element 16 to heat the water in the hot water zone 15. To heat the seat cushion 2, the controller 12 starts the water pump 17 located in the hot water zone 15. The water pump 17 pumps hot water into the heating tank inside the seat cushion 2 through the inlet pipe 7. The hot water transfers heat to the seat cushion 2 and then flows back to the hot water zone 15 through the outlet pipe 8, forming a closed loop.

[0050] During the heating cycle, the capacitive level gauge 27 located in the hot water zone 15 continuously monitors the water level and feeds the information back to the controller 12. When the water level drops to a preset threshold, the controller 12 starts the power motor 25, which drives the threaded rod 24 to rotate. Through threaded transmission, the sealing plate 21 slides on the slide bar 23, thereby opening the connecting hole 20 on the partition 13. At this time, cold water from the main water tank 11 flows into the hot water zone 15 through the connecting hole 20 to replenish the water. After replenishing the water to the preset level, the controller 12 reverses the drive of the motor to reset the sealing plate 21 and seal the connecting hole 20. The O-ring seal 26 ensures a reliable seal.

[0051] The filter screen 19 in the hot water zone 15 releases gas and blocks impurities when water is added or heated. The water inlet pipe 7 and water outlet pipe 8 connecting the seat cushion 2 pass through the connecting groove 10 on the lid 9 to ensure that the lid 9 can be opened and closed normally without compressing the water inlet pipe 7 and water outlet pipe 8.

[0052] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A safe heated smart toilet, comprising a main body (1) and a seat (2), wherein the seat (2) is hinged to the main body (1), a water tank (11) is fixedly connected to the main body (1), a flushing system is provided in the water tank (11), and a controller (12) is provided on the side wall of the main body (1), wherein the controller (12) is electrically connected to the flushing system, characterized in that: The cushion (2) is provided with a heating groove. The cushion (2) is connected with an inlet pipe (7) and an outlet pipe (8). The inlet pipe (7) and the outlet pipe (8) are respectively connected to the two ends of the heating groove. The water tank (11) is fixed with a partition (13). The partition (13) divides the water tank (11) into a cold water zone (14) and a hot water zone (15). The inner wall of the hot water zone (15) is connected with an electric heating tube (16) and a water pump (17). The end of the inlet pipe (7) and the outlet pipe (8) away from the heating groove passes into the hot water zone (15). The outlet end of the water pump (17) is connected to the inlet pipe (7). The electric heating tube (16) and the water pump (17) are both electrically connected to the controller (12). The side wall of the hot water zone (15) is provided with an exhaust hole (18).

2. A safe heated smart toilet according to claim 1, characterized in that: The seat cushion (2) includes an upper mounting part (3) and a lower mounting part (4). The upper mounting part (3) has an upper water channel (5), and the lower mounting part (4) has a lower water channel (6). When the upper mounting part (3) and the lower mounting part (4) are fixed, a heating groove is formed between the upper water channel (5) and the lower water channel (6).

3. A safe heated smart toilet according to claim 1, characterized in that: The partition (13) has a connecting hole (20) that connects the cold water zone (14) and the hot water zone (15). A sealing plate (21) is slidably connected to the partition (13). The sealing plate (21) is driven by a power structure (22) to block or move away from the connecting hole (20). The power structure (22) is electrically connected to the controller (12).

4. A safe heated smart toilet according to claim 3, characterized in that: The power structure (22) includes a slide bar (23), a threaded rod (24), and a power motor (25). The slide bar (23) is fixed on the partition plate (13), and the sealing plate (21) is slidably connected to the slide bar (23). The power motor (25) is fixed on the inner wall of the cold water zone (14). The power shaft of the power motor (25) is fixedly connected to the threaded rod (24). The threaded rod (24) is threadedly connected to the sealing plate (21), and the axis of the threaded rod (24) is parallel to the axis of the slide bar (23). The power motor (25) is electrically connected to the controller (12).

5. A safe heated smart toilet according to claim 3, characterized in that: The sealing plate (21) is fixedly connected to the side facing the partition plate (13) with an O-ring (26) for contacting the partition plate (13), and the inner diameter of the O-ring (26) is larger than the diameter of the connecting hole (20).

6. A safe heated smart toilet according to claim 3, characterized in that: A capacitive level gauge (27) is fixedly connected to the inner wall of the hot water zone (15), and the capacitive level gauge (27) is electrically connected to the controller (12).

7. A safe heated smart toilet according to claim 3, characterized in that: A water temperature sensor (28) is fixedly connected to the inner wall of the hot water zone (15), and the water temperature sensor (28) is electrically connected to the controller (12).

8. A safe heated smart toilet according to claim 1, characterized in that: A filter screen (19) is fixedly connected to the inner wall of the exhaust port (18).

9. A safe heated smart toilet according to claim 1, characterized in that: A bucket lid (9) is hinged to the main body (1). The bucket lid (9) is used to cover the outside of the cushion (2). A connecting groove (10) is provided on the bucket lid (9). The water inlet pipe (7) and the water outlet pipe (8) pass through the connecting groove (10).

10. A safe heated smart toilet according to claim 1, characterized in that: The partition (13) has a heat-insulating cavity inside.