A toilet cleaner mixing device, a toilet flushing system and a toilet

Abstract

This invention discloses a toilet cleaner mixing device, a toilet flushing system, and a toilet. The device includes a mixing chamber for mixing toilet cleaner and water, with a mixed liquid outlet. It also includes a water inlet chamber and a float unit. The water inlet chamber has a water inlet. The mixing chamber has a water replenishment port connected to the water inlet chamber, allowing water from the water inlet chamber to flow into the mixing chamber through the water replenishment port. The float unit is located within the mixing chamber and moves up and down with the liquid level. When the liquid level in the mixing chamber rises to a preset high level, the float unit closes the water replenishment port; when the liquid level in the mixing chamber drops to a preset low level, the float unit opens the water replenishment port. This invention controls the opening and closing of the water replenishment port by the float unit according to the liquid level in the mixing chamber, achieving synchronous and precise response between the opening and closing of the water replenishment port and changes in the liquid level in the mixing chamber. It requires no electricity and relies on a mechanical adaptive mechanism to achieve quantitative water replenishment.

Description

Technical Field

[0001] This invention relates to the field of toilet technology, and in particular to a toilet cleaner mixing device, a toilet flushing system, and a toilet. Background Technology

[0002] Toilet cleaners are widely used in homes and public restrooms to clean toilet bowls, deodorize, and disinfect. To achieve automatic and continuous dispensing, current technologies often place the solid or liquid form of the cleaner directly into the toilet tank, relying on the water flow during flushing to slowly dissolve or release it. However, this method suffers from problems such as uneven mixing, uncontrollable release of active ingredients, and residue buildup that can clog drains, leading to inconsistent cleaning results and even causing odor backflow or pipe blockage.

[0003] To address the aforementioned shortcomings, existing technologies have introduced toilet cleaner mixing devices equipped with independent mixing chambers. These devices pre-mix the toilet cleaner and water within the independent chamber before flushing, thereby improving mixing uniformity and efficiency. However, such devices still face significant technical bottlenecks in water replenishment control.

[0004] On the one hand, some solutions use electric distribution valves to control the water supply to the mixing chamber. These valves rely on motor drives to open and close, which not only significantly increases system costs but also requires the design of complex moisture-proof and waterproof sealing structures to adapt to high humidity environments. This leads to complex manufacturing processes, reduced reliability, and the motor is susceptible to water vapor corrosion and failure during long-term operation.

[0005] On the other hand, some solutions use the water pressure from the municipal water supply pipes to directly replenish the mixing chamber. However, this method is prone to pressure accumulation in the water storage chamber, requiring the selection of high-pressure resistant materials and supporting reinforced sealing and structural design, which significantly increases material costs and processing difficulty. At the same time, due to the influence of factors such as fluctuations in the water pressure of the pipe network and the limitation of water supply time, the replenishment volume is difficult to control stably, affecting the effectiveness of toilet cleaner. Summary of the Invention

[0006] This invention addresses the problems of complex control methods, high costs, poor stability, and low water replenishment accuracy in existing technologies by providing a toilet cleaner mixing device, toilet flushing system, and toilet that are simple in structure, require no electricity, and rely on a mechanical self-adaptive mechanism to achieve stable and precise water replenishment.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: a toilet cleaner mixing device, comprising a mixing chamber for mixing toilet cleaner and water, the mixing chamber having a mixed liquid outlet; further comprising a water inlet chamber and a float unit, the water inlet chamber having a water inlet; the mixing chamber having a water supply port communicating with the water inlet chamber, so that water in the water inlet chamber can flow into the mixing chamber through the water supply port; the float unit is disposed in the mixing chamber and moves up and down with the rise and fall of the liquid level; when the liquid level in the mixing chamber rises to a preset high level, the float unit closes the water supply port; when the liquid level in the mixing chamber drops to a preset low level, the float unit opens the water supply port.

[0008] In a preferred embodiment, the float unit includes a float and a sealing member. The float is provided with a swing arm, which is rotatably connected to the mixing chamber, so that the float can swing up or down around the rotation axis of the swing arm as the liquid level in the mixing chamber changes. The sealing member is provided on the swing arm to open and close the water inlet as the swing arm swings.

[0009] In a preferred embodiment, the sealing member and the float are located on the same side of the rotation axis of the swing arm. In a preferred embodiment, the inner wall of the mixing chamber is provided with a support member, the support member is provided with a first arc-shaped groove, the first arc-shaped groove and a second arc-shaped groove provided on the inner wall of the mixing chamber enclose a rotating shaft cavity; the free end of the support member and the inner wall of the mixing chamber form a constricted mounting port communicating with the rotating shaft cavity; the swing arm is provided with a rotating shaft, the rotating shaft sliding into the rotating shaft cavity through the mounting port.

[0010] In a preferred embodiment, the water inlet of the water inlet chamber is supplied with water by the water supply pipe of the water inlet valve; the water inlet chamber is provided with an overflow outlet for discharging excess water when the water level in the water inlet chamber is higher than a preset water level after the water supply outlet is closed by the float unit.

[0011] In a preferred embodiment, the system further includes a toilet cleaner addition channel, one end of which has an inlet for adding toilet cleaner, and the other end has at least one connecting port; the other end of the addition channel extends into the mixing chamber, and the connecting port is positioned below the preset high position.

[0012] In a preferred embodiment, the system further includes a top cover and a box body. The top cover seals and closes to the upper opening of the box body, and the two together enclose the mixing chamber. The water inlet chamber and the addition channel are both located on the top cover.

[0013] In a preferred embodiment, the water inlet is located on the top wall of the mixing chamber.

[0014] The present invention also provides a toilet flushing system, including a water tank and a water inlet valve disposed in the water tank; it also includes a toilet cleaner mixing device as described above, wherein the water inlet of the toilet cleaner mixing device is connected to the water supply pipe of the water inlet valve.

[0015] In a preferred embodiment, the system further includes a water distribution module supplied by the water tank. The water distribution module is equipped with a brush ring outlet and a jet outlet. The brush ring outlet and the mixed liquid outlet are connected to the brush ring water path of the toilet via a Venturi tee. When water flows out of the brush ring outlet, the water flow through the Venturi tee generates negative pressure, drawing the mixed liquid from the mixed liquid outlet into the mixing chamber, mixing it with the water flow, and then delivering it to the brush ring water path. The jet outlet is connected to the jet water path of the toilet.

[0016] In a preferred embodiment, after the water inlet is closed by the float unit, when the water level in the water inlet chamber exceeds a preset water level, the excess water in the water inlet chamber is discharged into the water tank through the overflow outlet provided in the water inlet chamber or the overflow pipe connected to it.

[0017] The present invention also provides a toilet, including a toilet body and a toilet flushing system as described above; the water tank is located at the rear of the toilet body.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This invention employs a purely mechanical linkage structure of a floating unit to achieve automatic water replenishment control. It eliminates the need for electric drives, electronic sensors, or external control circuits, resulting in a simple structure, fewer components, and lower manufacturing costs. Furthermore, it completely avoids the risk of electronic component failure in humid, high-humidity, and highly corrosive bathroom environments, significantly improving the long-term reliability and service life of the device. This invention precisely controls the opening and closing of the water inlet by the up-and-down movement of the floating unit as the liquid level in the mixing chamber rises and falls. This synchronizes the opening and closing timing of the water inlet with changes in the liquid level within the mixing chamber, forming a closed-loop self-regulating mechanism that automatically starts water replenishment when the liquid level drops to a preset low level and reliably closes it when the liquid level rises to a preset height. This achieves quantitative water replenishment, ensuring that the water replenishment volume remains stable and controllable, thus improving the consistency of cleaning and sterilization efficiency. In particular, this invention features an independent water inlet chamber that is connected to the mixing chamber via a water supply port. This allows external water to flow into the mixing chamber only when needed, via gravity or low pressure. This avoids the water pressure fluctuations, pressure accumulation, and sealing problems associated with traditional high-pressure direct-injection water supply, further reducing the performance requirements for pipe materials and sealing structures, simplifying system design, and improving overall safety and compatibility.

[0020] 2. The floating unit of this invention includes a floating body and a sealing component. The floating body is equipped with a swing arm, allowing it to swing up and down around the rotation axis of the swing arm. This achieves the following technical advantages: it eliminates the need for a guide structure to make the floating body float vertically, reducing the risk of friction and jamming and improving the reliability of the floating body's operation; it can utilize the leverage ratio to increase the closing force, making the seal more reliable; it saves vertical space, making the structure more compact and suitable for thin-film designs. Furthermore, the sealing component and the floating body are located on the same side of the rotation axis of the swing arm, allowing the buoyancy force on the floating body to be directly converted into the clamping force acting on the sealing component when it swings upward, without the need for reverse transmission or amplification through a lever, resulting in a simpler and more compact structure; as the water level rises, the buoyancy increases, and the sealing force increases synchronously, forming a self-reinforcing sealing effect and effectively preventing leakage; at the same time, the floating body and the sealing component move in the same direction, resulting in crisp and clean opening and closing actions, avoiding the suspension and shaking of the sealing component at the critical water level point, thereby improving the anti-interference ability against inlet pressure fluctuations. Overall, it achieves a unity of sealing reliability, structural simplification, and operational stability.

[0021] 3. The present invention achieves the sliding assembly of the swing arm shaft by setting a support member with a first arc groove and a constricted mounting port, which simplifies the assembly process of the shaft and ensures that the shaft does not move axially or detach under long-term vibration or liquid impact.

[0022] 4. The water inlet chamber of this invention supplies water through the water inlet valve and water supply pipe, eliminating the need for an additional pressurization device. It can be directly installed inside existing toilet tanks without modifying the tank structure, making installation convenient and applicable to a wide range of applications. The water inlet chamber is further equipped with an overflow outlet, allowing for the safe discharge of excess water even after the water supply port is closed. This prevents water pressure buildup in the water inlet chamber due to delayed valve closure or water pressure fluctuations, avoiding device cracking or leakage, and improving the overall safety and fault tolerance of the system.

[0023] 5. This invention, by setting up an addition channel for toilet cleaner, facilitates users to manually replenish liquid or solid toilet cleaner periodically through the addition port, improving ease of use. Furthermore, the addition channel serves as a carrier for block-shaped toilet cleaner, ensuring it remains within the channel before dissolving, preventing it from falling directly to the bottom of the mixing chamber and causing localized accumulation, uneven dissolution, or blockage of the mixing liquid outlet. Simultaneously, the connection port of the addition channel is positioned at a preset high level below the liquid level in the mixing chamber, allowing the block-shaped toilet cleaner to slowly dissolve and evenly diffuse under natural soaking, achieving continuous, self-adaptive release without power, thus improving the stability and consistency of cleaning performance.

[0024] 6. The present invention forms a mixing cavity by enclosing the top cover and the box body, and integrates the water inlet cavity and the filling channel into the top cover, making the overall structure simpler, easier to produce and assemble, and at the same time significantly reducing the number of parts and reducing assembly steps.

[0025] 7. This invention uses a Venturi tee to create negative pressure when the water flow around the brush ring is flowing at high speed, automatically drawing in a mixture containing toilet cleaner from the mixing outlet. This achieves an integrated function of simultaneous brush ring rinsing and toilet cleaner dispensing, requiring no additional power or control circuit, making it energy-efficient and highly effective. Furthermore, the mixture is fully integrated with the water flow, enhancing cleaning and sterilization effects.

[0026] 8. The water inlet chamber discharges excess water into the water tank through its overflow outlet or its connected overflow pipe, realizing water resource recycling, avoiding drainage overflow, and maintaining a stable water level in the water tank, so as not to affect the normal flushing function of the toilet, thereby improving the overall water-saving performance of the system and the user experience.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the toilet cleaner mixing device, toilet flushing system and smart toilet of the present invention are not limited to the embodiments. Attached Figure Description

[0028] Figure 1 This is an exploded view of the toilet cleaner mixing device of the present invention;

[0029] Figure 2 This is a three-dimensional structural diagram of the top cover of the present invention;

[0030] Figure 3 This is a cross-sectional view of the top cover of the present invention;

[0031] Figure 4 This is a three-dimensional structural schematic diagram of the toilet cleaner mixing device of the present invention;

[0032] Figure 5 This is a cross-sectional view of the toilet cleaner mixing device of the present invention;

[0033] Figure 6 This is a three-dimensional structural schematic diagram (partial cross-sectional view) of the toilet flushing system of the present invention.

[0034] Figure 7 This is a top view of the toilet flushing system of the present invention;

[0035] Figure 8 This is a cross-sectional view (AA) of the toilet flushing system of the present invention in the water replenishment state;

[0036] Figure 9 This is a BB cross-sectional view of the toilet flushing system of the present invention in the water replenishment state;

[0037] Figure 10 This is a cross-sectional view (AA) of the toilet flushing system of the present invention in the overflow state;

[0038] Figure 11 This is a CC cross-sectional view of the toilet flushing system of the present invention in the overflow state;

[0039] Figure 12 This is a cross-sectional view (AA) of the toilet flushing system of the present invention in the flushing state;

[0040] Figure 13 This is a DD cross-sectional view of the toilet flushing system of the present invention in the flushing state;

[0041] Figure 14 yes Figure 12 An enlarged schematic diagram of section E in the middle;

[0042] In the diagram, 1. Box body; 11. Mixing chamber; 12. Mixture outlet; 2. Top cover; 21. Water inlet chamber; 211. Water inlet; 212. Overflow outlet; 22. Addition channel; 221. Addition port; 222. Connecting port; 23. Water replenishment port; 24. Support component; 241. First arc-shaped groove; 242. Mounting port; 25. Second arc-shaped groove; 3. Float; 4. Sealing component; 41. Sealing block; 42. Connecting part; 43. Guide post; 5. Swing arm; 51. Rotating shaft; 52. Mounting hole; 53. Receiving groove; 6. End cap; 7. Sealing ring; 8. Water tank; 81. Tank cover; 9. Inlet valve; 91. Water supply pipe; 10. Water pump; 20. Switching valve; 201. Brush ring outlet; 202. Jet outlet; 30. Venturi tee pipe; 40. Brush ring water passage; 50. Jet water passage; 60. Overflow pipe; 70. Block toilet cleaner. Detailed Implementation

[0043] In this invention, the use of terms such as "upper," "lower," "inner," "outer," and "top / bottom" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings. These terms are used solely for the purpose of describing the invention and do not imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] Furthermore, in the description of this invention, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0045] Please see Figures 1-14As shown, a toilet cleaner mixing device of the present invention includes a mixing chamber 11 for mixing toilet cleaner and water, a water inlet chamber 21, and a float unit. The water inlet chamber 21 has a water inlet 211 for connecting to an external water source. The mixing chamber 11 has a mixed liquid outlet 12, which is located at the bottom of the mixing chamber 11, specifically at the bottom of the bottom wall or side wall of the mixing chamber 11. The mixing chamber 11 has a water replenishment port 23, which connects to the water inlet chamber 21, allowing water in the water inlet chamber 21 to flow into the mixing chamber 11 through the water replenishment port 23. The float unit is located within the mixing chamber 11 and moves up and down with the liquid level; when the liquid level in the mixing chamber 11 rises to a preset high level, the float unit closes the water replenishment port 23; when the liquid level in the mixing chamber 11 drops to a preset low level, the float unit opens the water replenishment port 23. The preset high level refers to the liquid level height in the mixing chamber 11 when the liquid level rises to the level at which the float unit completely closes the water inlet 23. At this liquid level, the float unit is able to overcome its own weight, frictional resistance between components, etc., and maintain the state of closing the water inlet 23. The preset low level refers to the liquid level height in the mixing chamber 11 when the liquid level drops to the level at which the buoyancy unit opens the water inlet 23. At this liquid level, the buoyancy force on the buoyancy unit is reduced to an insufficient level to maintain the closed state, causing the water inlet 23 to open.

[0046] In this embodiment, the water inlet 23 is located on the top wall of the mixing chamber 11, and the water inlet chamber 21 is located above the mixing chamber 11. However, the present invention is not limited to this. In other embodiments, the water inlet can also be located on the top of the side wall of the mixing chamber, or, by partially raising the bottom wall of the mixing chamber to form a boss structure, the water inlet can be located on the boss, and a connecting pipe can be used below the boss to connect the water inlet chamber and the water inlet, so as to adapt to different structural layout requirements.

[0047] In a preferred embodiment, the float unit includes a float 3 and a sealing component 4. The float 3 is equipped with a swing arm 5, which is rotatably connected to the mixing chamber 11, and its rotation axis extends horizontally, allowing the float 3 to swing up or down around the rotation axis of the swing arm 5 as the liquid level in the mixing chamber 11 changes. The sealing component 4 is located on the swing arm 5 to open and close the water inlet 23 as the swing arm 5 swings. This structure abandons the traditional vertical floating mode of the float, eliminating the need for a guide structure to make the float float vertically, thereby effectively avoiding the failure risk caused by friction and jamming of the guide component, and significantly improving the reliability and durability of the float operation. At the same time, since no space needs to be reserved for vertical floating, the overall structure is more compact and suitable for thin design. Of course, if space conditions permit, a traditional vertical floating structure can also be used: the float 3 is guided in the vertical direction, and the sealing component 4 is directly set on the float 3, so that it directly opens and closes the water inlet 23 as the liquid level rises and falls. This solution can also achieve stable and reliable water replenishment control, and can be flexibly selected according to the actual application scenario.

[0048] More preferably, the sealing element 4 and the float 3 are located on the same side of the rotation axis of the swing arm 5. Specifically, one end of the swing arm 5 is integrally formed with the float 3, or is fixedly connected by means of fastener locking, snap connection or adhesive, etc., preferably integrally formed, and preferably, one end of the swing arm 5 can be located in the area above the middle of the outer side of the float 3; the other end of the swing arm 5 is rotatably connected to the mixing chamber 11, so that the float 3 and the swing arm 5 can swing up and down around the rotation axis of the other end of the swing arm 5; the sealing element 4 is located between the two ends of the swing arm 5, preferably located in the middle of the swing arm 5. This design allows the buoyancy force on the float 3 to be directly converted into a clamping force acting on the sealing component 4 when it swings upward, without the need for reverse transmission or amplification through levers. This results in a simpler and more compact structure. Furthermore, as the water level rises, the buoyancy increases, and the sealing force strengthens simultaneously, creating a self-reinforcing sealing effect and effectively preventing leakage. Simultaneously, the float 3 and the sealing component 4 move in the same direction, resulting in crisp and clean opening and closing actions. This avoids the suspension and shaking of the sealing component 4 at the critical water level point, thereby improving its resistance to fluctuations in inlet pressure. Overall, it achieves a balance between sealing reliability, structural simplification, and operational stability. In other alternative embodiments, the sealing component and the float are positioned on opposite sides of the swing arm's rotation axis. Specifically, the swing arm is designed as a seesaw, with the float at one end and the sealing component at the other. In this case, the water inlet is preferably located on a raised platform formed by a partial elevation of the bottom wall, with the sealing component fitting onto the water inlet. When the float moves upward with the rise in liquid level, the sealing component moves downward until the water inlet is closed. Conversely, when the float moves downward with the fall in liquid level, the sealing component is raised, thereby opening the water inlet.

[0049] The sealing component 4 is a rubber part, which includes, from top to bottom, a sealing block 41 adapted to the water inlet 23, a connecting part 42, and a guide post 43. The guide post 43 is a frustum-shaped part that is wider at the top and narrower at the bottom. Its upper end receives the bottom end of the sealing block 41 through the connecting part 42, and the three parts are integrally formed. The radial dimension of the connecting part 42 is smaller than the radial dimension of the sealing block 41 and the guide post 43, and it is adapted to the corresponding mounting hole 52 of the swing arm 5. During installation, the guide post 43 of the sealing component 4 is aligned with the mounting hole 52 of the swing arm 5 and inserted from top to bottom. After the guide post 43 is inserted into place, the connecting part 42 fits into the mounting hole 52, and the sealing block 41 is accommodated in the receiving groove 53 provided above the mounting hole 52 of the swing arm 5.

[0050] In this embodiment, the inner wall of the mixing chamber 11 is provided with a support member 24. The support member 24 has a first arc-shaped groove 241, which, together with a second arc-shaped groove 25 provided on the inner wall of the mixing chamber 11, forms a rotating shaft cavity. A constricted mounting port 242 communicating with the rotating shaft cavity is formed between the free end of the support member 24 and the inner wall of the mixing chamber 11. The swing arm 5 is provided with a rotating shaft 51, which slides into the rotating shaft cavity through the mounting port 242. Specifically, see Figure 5 and Figure 14As shown, one end of the support member 24 is fixed or integrally formed to the top wall of the mixing chamber 11, and the second arc-shaped groove 25 is provided on the lower surface of the top wall of the mixing chamber 11; the other end of the support member 24 forms a free end and forms the mounting port 242 between it and the top wall of the mixing chamber 11. This structure enables boltless and tool-free plug-in assembly of the rotating shaft 51, simplifying the installation process, while maintaining stability under long-term vibration and liquid impact, significantly enhancing the reliability and consistency of the mechanism's operation. In this embodiment, one end of the support member 24 is integrally formed to the top wall of the mixing chamber 11, and multiple support members 24 are provided. Taking two as an example, the multiple support members 24 are distributed at intervals along the axial direction of the rotating shaft 51. The rotating shaft 51 on the swing arm 5 is provided in pairs, corresponding one-to-one with the support member 24, and each rotating shaft 51 is integrally formed to the swing arm 5, specifically separated by a groove at the other end of the swing arm 5.

[0051] In a preferred embodiment, the inlet 211 of the inlet chamber 21 is supplied with water by the water supply pipe 91 of the mechanical inlet valve 9. The inlet chamber 21 has a volume sufficient to buffer the water flow, so that the high-pressure water entering the inlet chamber 21 can be quickly reduced to low-pressure water. Furthermore, the inlet chamber 21 is provided with an overflow outlet 212, which is used to discharge excess water when the water supply port 23 is closed by the sealing component 4 and the water level in the inlet chamber 21 is higher than the preset water level. Therefore, the overflow outlet 212 serves as a safety pressure relief channel, automatically draining excess water from the inlet chamber 21 when the inlet valve 9 is delayed in closing or when the water pressure in the pipeline fluctuates, preventing deformation, sealing failure, or leakage of the inlet chamber 21 due to pressure accumulation, improving the fault tolerance and safety of the system under complex water supply conditions, and ensuring long-term stable operation of the device. The preset water level refers to the highest safe water level that can be reached in the water inlet chamber 21. It is determined by the lower edge position of the overflow outlet 212. When the water level in the water inlet chamber 21 is higher than this position, the excess water will automatically overflow.

[0052] Furthermore, the inlet 211 and overflow outlet 212 of the water inlet chamber 21 are both located on the side wall of the water inlet chamber 21, and the two are flush or substantially flush; the upper end of the water inlet chamber 21 is open and sealed by an end cap 6. This structure makes the water inlet chamber 21 a water storage unit with a closed top and side-mounted water inlet and outlet, which not only prevents external impurities from falling into the water inlet chamber 21 from the top, but also facilitates the removal of the end cap for internal cleaning or maintenance.

[0053] The present invention also includes a toilet cleaner addition channel 22. One end of the addition channel 22 is provided with an addition port 221 for adding toilet cleaner, and the other end is provided with at least one connecting port 222. The other end of the addition channel 22 extends into the mixing chamber 11, and the position of the connecting port 222 is lower than the preset high position, so that the block toilet cleaner dissolves and diffuses under natural wetting, realizing a continuous release without power and adaptively. Specifically, the addition channel 22 extends in the vertical direction, with one end facing upward and the other end facing downward, and the bottom wall and / or side wall of the other end is provided with a connecting port 222. Preferably, the connecting port 222 is located on the side wall of the other end of the addition channel 22, so that the addition channel 22 can serve as a supporting structure for the block toilet cleaner. Therefore, the block toilet cleaner can be stably placed in the addition channel 22 before it dissolves, avoiding it from falling directly to the bottom of the mixing chamber 11 and causing local accumulation, uneven dissolution, or blockage of the mixed liquid outlet 12.

[0054] The present invention also includes an upper cover 2 and a box body 1. The upper cover 2 seals and fits over the upper opening of the box body 1, and the two together enclose a mixing chamber 11. Therefore, the upper cover 2 constitutes the top wall of the mixing chamber 11, and the aforementioned water inlet 21, water inlet 211, water replenishment inlet 23, support member 24, and addition channel 22 are all located on the upper cover 2. Specifically, the upper cover 2 and the box body 1 can be connected in a snap-fit ​​structure and / or with fasteners and a sealing ring to achieve a sealed connection, which facilitates disassembly and cleaning. The water inlet 21 and the addition channel 22 are both located on the upper cover 2, realizing an integrated layout of water supply and additive functions, reducing the number of parts and assembly steps.

[0055] The present invention provides a toilet cleaner mixing device that can be applied to toilet flushing systems, such as... Figures 6-14 As shown, its working principle will be described in detail below.

[0056] Please see Figures 1-14 As shown, a toilet flushing system of the present invention includes a water tank 8, an inlet valve 9 disposed within the water tank 8, and a toilet cleaner mixing device as described above. The inlet 211 of the toilet cleaner mixing device is connected to the water supply pipe 91 of the inlet valve 9, thereby utilizing the existing water supply system (inlet valve 9) within the water tank 8 to achieve water replenishment without the need for an additional water pump or booster device. It features a simple structure, low cost, compatibility with most traditional toilet tanks 8 on the market, convenient installation, and wide applicability. Specifically, the mixing chamber 11 of the mixing device has a much smaller overall volume than the water tank 8. Therefore, during the water inlet valve 9's water intake process, the mixing chamber 11 of the mixing device is quickly filled. After filling, excess water in the inlet chamber 21 flows back into the water tank 8. When the water tank 8 finishes replenishing water, the mixing chamber 11 of the mixing device has already finished replenishing water for some time, and the toilet cleaner and water have already been mixed within the mixing chamber 11. This allows the user to start the toilet flushing function without waiting for the mixing chamber 11 to replenish water and mix.

[0057] In this embodiment, the toilet cleaner mixing device is located on the top of the water tank 8. Specifically, the toilet cleaner mixing device is installed on the tank cover 81 on the top of the water tank 8, and the box body 1 is inserted into the water tank 8, while the upper end of the top cover 2 and its addition channel 22 are exposed. Figure 6 , Figure 7 As shown. After the water inlet 23 is closed by the sealing component 4, when the water level in the inlet chamber 21 exceeds the preset water level, the excess water in the inlet chamber 21 is discharged into the water tank 8 through the overflow outlet 212 provided in the inlet chamber 21 or its connected overflow pipe 60, thereby avoiding external discharge and waste, and realizing the recycling of water resources; at the same time, it keeps the water level in the water tank 8 stable, does not affect the normal flushing function of the toilet, and improves the overall water-saving performance and operational stability of the system. Furthermore, the overflow outlet 212 is connected to the overflow pipe 60, the drain end of which is fixed to the tank cover 81 and extends into the water tank 8.

[0058] The toilet flushing system of the present invention also includes a water distribution module supplied by a water tank 8. This water distribution module has a brush ring outlet 201 and a jet outlet 202. The brush ring outlet 201 and the mixed liquid outlet 12 are connected to the toilet's brush ring water path 40 via a Venturi tee pipe 30. When water flows out of the brush ring outlet 201, the water flow through the Venturi tee pipe 30 generates negative pressure, drawing the mixed liquid from the mixed liquid outlet 12 into the mixing chamber 11, mixing it with the water flow, and then delivering it to the brush ring water path 40. The jet outlet 202 is connected to the toilet's jet water path 50. In this embodiment, the water distribution module includes a water pump 10 and a switching valve 20. The inlet of the water pump 10 is connected to the water tank 8, and the outlet of the water pump 10 is connected to the inlet of the switching valve 20. The switching valve 20 has the brush ring outlet 201 and the jet outlet 202, which can switch between water flow.

[0059] The working principle of the toilet flushing system of the present invention is as follows:

[0060] When water tank 8 is replenished, the inlet valve 9 opens, allowing external water to flow into the tank. Simultaneously, some water flows through the replenishment pipe 91 into the inlet chamber 21 of the toilet cleaner mixing device. If the liquid level in the mixing chamber 11 has dropped due to the previous flush, the float 3 moves downwards, causing the swing arm 5 to rotate counterclockwise around the pivot 51. This causes the sealing element 4 located in the middle of the swing arm 5 to disengage from the replenishment port 23, opening the port 23. Under gravity, the water in the inlet chamber 21 flows through the replenishment port 23 into the mixing chamber 11, replenishing the consumed water. Figure 8 , Figure 9 As shown in the diagram, the arrows indicate the direction of water flow. During this process, the liquid level in the mixing chamber 11 gradually rises, the float 3 rises accordingly, and the swing arm 5 swings clockwise, gradually pushing the sealing component 4 closer to and finally tightly sealing the water inlet 23, thus achieving automatic closure of the water inlet 23. When water replenishment is complete, the liquid level in the mixing chamber 11 stabilizes at the preset high level (i.e., near the lower edge of the water inlet 23), and the system enters standby mode.

[0061] If the water inlet 23 is closed, but the water supply pipe 91 continues to supply water to the water inlet chamber 21 (due to delayed closure of the water inlet valve 9 or water pressure fluctuations), the water level in the water inlet chamber 21 will continue to rise. At this time, excess water will automatically flow into the water tank 8 through the overflow outlet 212 located on the side wall of the water inlet chamber 21 and its connected overflow pipe 60. Figure 10 , Figure 11 As shown. This design prevents overflow water from being discharged into the sewer, but instead allows it to flow back into the water tank 8, thus achieving water resource recycling; at the same time, it effectively releases the pressure accumulated in the water inlet chamber 21, preventing the top cover 2 from deforming, the seal from failing or the structure from being damaged due to overpressure, and significantly improving the safety and fault tolerance of the system under abnormal water supply conditions.

[0062] The block toilet cleaner 70 is placed in the addition channel 22, and its undissolved portion is stably supported in the addition channel 22. When the liquid level in the mixing chamber 11 is higher than the connecting port 222 of the addition channel 22, the block toilet cleaner 70 is continuously dissolved by being soaked in the addition channel 22 and released into the mixing chamber 11 through the connecting port 222, achieving a long-lasting, self-adaptive, and unpowered dispensing process.

[0063] When the user initiates flushing, water in tank 8 is drawn by pump 10 and flows out through switching valve 20 from brush ring outlet 201 or jet outlet 202. The water flowing from brush ring outlet 201 flows at high speed into Venturi tee pipe 30, creating a negative pressure zone within the pipe. This negative pressure zone, through mixing liquid outlet 12, draws in the pre-mixed toilet cleaner solution from mixing chamber 11 and mixes it thoroughly with the main water flow, forming a flushing liquid containing bactericidal components, such as... Figure 12 , Figure 13 As shown. The flushing liquid is evenly sprayed along the water path 40 of the toilet brush ring onto the inner wall of the toilet bowl, achieving simultaneous flushing and detergent dispensing, thus enhancing cleaning and antibacterial effects. The water flowing from the spray nozzle 202 directly enters the toilet spray hole, forming a high-speed flushing water flow to ensure thorough waste removal.

[0064] The toilet cleaner mixing device of the present invention requires no electricity, sensors or control circuits during operation. Its water replenishment, mixing, release, liquid absorption and overflow are all completed through a purely mechanical structure (floating body 3 linkage, gravity diversion, Venturi negative pressure) and physical principles. It has a compact structure, high reliability and easy maintenance. It is suitable for all kinds of traditional smart toilets and realizes a low power consumption and highly stable smart toilet cleaning experience.

[0065] This invention also provides a toilet, including a toilet body and the toilet flushing system described above. The toilet body is provided with a brush ring water passage 40 and a jet water passage 50; a water tank 8 is located at the rear of the toilet body, with a brush ring outlet 201 connected to the brush ring water passage 40 and a jet water outlet 202 connected to the jet water passage 50. In this embodiment, the toilet of this invention is specifically a smart toilet, and the entire flushing system is located in a receiving cavity located at the rear of the toilet body.

[0066] The toilet cleaner mixing device, toilet flushing system, and smart toilet of the present invention, the parts not covered (such as the structure of the Venturi tee pipe, etc.) are the same as or can be implemented by existing technology.

[0067] The above embodiments are only used to further illustrate a toilet cleaner mixing device, a toilet flushing system, and a smart toilet according to the present invention. However, the present invention is not limited to the embodiments. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A toilet cleaner mixing device, comprising a mixing chamber for mixing toilet cleaner with water, the mixing chamber being provided with a mixed liquid outlet; characterized in that: It also includes a water inlet chamber and a float unit. The water inlet chamber is provided with a water inlet. The mixing chamber is provided with a water supply port that connects to the water inlet chamber so that water in the water inlet chamber can flow into the mixing chamber through the water supply port. The float unit is located in the mixing chamber and moves up and down with the rise and fall of the liquid level. When the liquid level in the mixing chamber rises to a preset high level, the float unit closes the water supply port. When the liquid level in the mixing chamber drops to a preset low level, the float unit opens the water supply port.

2. The toilet cleaner mixing device of claim 1, wherein: The float unit includes a float and a sealing component. The float is provided with a swing arm, which is rotatably connected to the mixing chamber, so that the float can swing up or down around the rotation axis of the swing arm as the liquid level in the mixing chamber changes. The sealing component is provided on the swing arm to open and close the water inlet as the swing arm swings.

3. The toilet cleaner mixing device according to claim 2, characterized in that: The sealing element and the float are located on the same side of the rotation axis of the swing arm.

4. The toilet cleaner mixing device according to claim 2 or 3, characterized in that: The inner wall of the mixing chamber is provided with a support member, the support member is provided with a first arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove provided on the inner wall of the mixing chamber form a rotating shaft cavity; the free end of the support member and the inner wall of the mixing chamber form a constricted mounting port that communicates with the rotating shaft cavity; the swing arm is provided with a rotating shaft, the rotating shaft slides into the rotating shaft cavity through the mounting port.

5. The toilet cleaner mixing device according to claim 1, characterized in that: The water inlet of the water inlet chamber is supplied with water by the water supply pipe of the water inlet valve; the water inlet chamber is provided with an overflow outlet, which is used to discharge excess water when the water level in the water inlet chamber is higher than the preset water level after the water supply outlet is closed by the float unit.

6. The toilet cleaner mixing device according to claim 1, characterized in that: It also includes a toilet cleaner addition channel, one end of which has an inlet for adding toilet cleaner, and the other end has at least one connecting port; the other end of the addition channel extends into the mixing chamber, and the position of the connecting port is lower than the preset high position.

7. The toilet cleaner mixing device according to claim 6, characterized in that: It also includes a top cover and a box body, the top cover sealingly covering the upper opening of the box body, the two together forming the mixing chamber; the water inlet chamber and the addition channel are both located on the top cover; The water inlet is located on the top wall of the mixing chamber.

8. A toilet flushing system, comprising a water tank and an inlet valve disposed within the water tank; characterized in that: It also includes a toilet cleaner mixing device as described in any one of claims 1-7, wherein the inlet of the toilet cleaner mixing device is connected to the water supply pipe of the water inlet valve.

9. The toilet flushing system according to claim 8, characterized in that: It also includes a water distribution module supplied by the water tank. The water distribution module is equipped with a brush ring outlet and a jet outlet. The brush ring outlet and the mixed liquid outlet are connected to the brush ring water circuit of the toilet through a Venturi tee. When water comes out of the brush ring outlet, the water flow through the Venturi tee creates negative pressure, which draws the mixed liquid from the mixed liquid outlet into the mixing chamber and mixes with the water flow before being delivered to the brush ring water circuit. The jet outlet is connected to the jet water circuit of the toilet.

10. The toilet flushing system according to claim 8, characterized in that: After the water inlet is closed by the float unit, when the water level in the water inlet chamber exceeds the preset water level, the excess water in the water inlet chamber is discharged into the water tank through the overflow outlet provided in the water inlet chamber or the overflow pipe connected to it.

11. A toilet, comprising a toilet body, characterized in that: It also includes a toilet flushing system as described in any one of claims 8-10; the water tank is located at the rear of the toilet body.

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