Flushing device and intelligent closestool

Abstract

When the flushing device is in a first state, water enters a water inlet flow channel, so that a water blocking convex edge can overcome the elastic force of a second elastic piece under the water pressure effect of the water inlet flow channel and drive a limiting rod to retract in the direction away from a bottom flushing flow channel, and a water supply channel does not supply water; the water separation piece can be reset under the elastic action of the first elastic piece to block the water passing opening; in the second state, the water separation piece blocks the water passing opening, water does not enter the water inlet flow channel, the limiting rod can stretch into the bottom flushing channel along the through hole under the elastic action of the second elastic piece and abut against the side, back to the water supply channel, of the water separation piece, the water supply channel supplies water, and water in the water supply channel only flows to the brush ring channel; in the third state, water enters the water inlet flow channel, the limiting rod is separated from the water separation piece, the water supply channel supplies water, the water separation piece originally blocking the water passing opening can move in the direction overcoming the elastic force of the first elastic piece under the action of water pressure in the water supply channel, and the water supply channel and the bottom flushing channel can be communicated through the water passing opening.

Description

Flushing devices and smart toilets Technical Field

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

[0002] As living standards improve, smart toilets are becoming increasingly popular due to their advantages such as comfort, hygiene, and water conservation.

[0003] To meet diverse cleaning needs, some traditional smart toilets offer multiple flushing modes, such as a mode that only cleans the toilet bowl's sidewalls, and a combined flushing mode that cleans both the sidewalls and the bottom simultaneously. The key to achieving these modes lies in the flushing mechanism's ability to reliably switch between different water paths.

[0004] However, traditional smart toilets typically use separate piping systems for flushing the toilet bowl's rim and bottom. While functional, this approach suffers from complex structures, large space requirements, and high costs.

[0005] The information disclosed above in the background art of this application is only used to understand the background of the concept of this application, and may contain information that does not constitute prior art. Summary of the Invention

[0006] Therefore, it is necessary to provide a flushing device and a smart toilet to address the above problems.

[0007] This application provides a flushing device for a smart toilet, the flushing device comprising:

[0008] The valve body has a water supply channel, a bottom flush channel, and a brush ring channel. The brush ring channel is connected to the water supply channel, and a water outlet is formed between the water supply channel and the bottom flush channel. An expansion hole is provided on the outer circumference of the bottom flush channel. The brush ring channel is used to transport water to the side wall of the toilet bowl, and the bottom flush channel is used to transport water to the bottom of the toilet bowl.

[0009] A water-blocking component, which is movably disposed within the valve body and is used to selectively block or open the water inlet;

[0010] A first elastic element, disposed within the valve body and capable of providing a spring force to the water-blocking element to tend towards sealing the water inlet; and

[0011] A drive assembly includes a housing, a second elastic element, and a limiting rod. The housing is connected to the valve body and has an inlet channel, a drain channel, and a receiving groove. One end of the limiting rod is located in the receiving groove, and the other end of the limiting rod is telescopically inserted through the telescopic hole. A water-blocking protrusion is provided on the outer circumferential surface of the limiting rod. The water-blocking protrusion is located in the receiving groove. The second elastic element is located on the side of the water-blocking protrusion facing away from the telescopic hole and elastically abuts against the groove wall of the receiving groove and the water-blocking protrusion. The water supply channel is used to communicate with an integrated water inlet valve and can supply water to the side of the water-blocking protrusion facing away from the second elastic element. One end of the drain channel is connected to the receiving groove, and the other end of the drain channel is connected to the bottom flushing channel.

[0012] The flushing device has a first state, a second state, and a third state;

[0013] In the first state, water enters the water inlet channel, allowing the water-blocking protrusion to overcome the elastic force of the second elastic element under the water pressure of the water inlet channel and drive the limiting rod to retract in a direction away from the bottom flushing channel. Water is not supplied to the water supply channel, and the water-blocking member can be reset under the elastic force of the first elastic element to block the water outlet.

[0014] In the second state, the water-blocking component blocks the water inlet, and the water inlet channel is not filled with water. This allows the limiting rod to extend into the bottom flushing channel along the through hole under the elastic force of the second elastic component and abut against the side of the water-blocking component facing away from the water supply channel. The water supply channel supplies water, and the water-blocking component can prevent water in the water supply channel from entering the bottom flushing channel, and make the water in the water supply channel flow only to the brush ring channel.

[0015] In the third state, water enters the inlet channel, allowing the water-blocking protrusion to overcome the elastic force of the second elastic element under the water pressure of the inlet channel and drive the limiting rod to retract in a direction away from the bottom flushing channel and separate from the water-blocking component. Water is supplied through the water supply channel, and the water-blocking component that originally blocked the water outlet can move in a direction that overcomes the elastic force of the first elastic element under the water pressure in the water supply channel, allowing the water supply channel and the bottom flushing channel to connect through the water outlet, allowing water in the water supply channel to enter the bottom flushing channel.

[0016] The above-mentioned flushing device can achieve at least the following beneficial effects:

[0017] The technical advantage of the flushing device provided in this application lies in its ability to automatically switch and precisely control the flushing device between three states by using a valve body with a water supply channel, a bottom flushing channel, a brush ring channel, and a water outlet, along with a movable water-blocking component, a first elastic component providing reset force, and a drive assembly consisting of a housing, a second elastic component, and a limiting rod. Specifically, in the first state, water enters the inlet channel and drives the limiting rod to retract via a water-blocking flange, while the water supply channel is not supplied with water. This causes the water-blocking component to seal the water outlet under the action of the first elastic component, preparing for subsequent state switching. In the second state, water enters the inlet channel and stops flowing. The limiting rod extends under the action of the second elastic component and abuts against the water-blocking component, helping to securely seal the water outlet. At this time, water is supplied through the water supply channel, and the water flow is completely guided to the brush ring channel, achieving dedicated brush ring flushing of the toilet bowl sidewalls. In the third state, water is supplied simultaneously to the inlet channel and the supply channel. The water pressure in the inlet channel drives the limit rod to retract, releasing the limit on the water-blocking component. Simultaneously, the water pressure in the supply channel overcomes the elastic force of the first elastic element, pushing the water-blocking component to open the water inlet, allowing water to simultaneously enter the brush ring channel and the bottom flushing channel, achieving combined flushing of the toilet bowl's sidewalls and bottom. It is important to emphasize that since both the inlet channel and the supply channel can be directly connected to the existing integrated inlet valve of the smart toilet, which can already supply water to the tank or spray gun, there is no need to add an additional solenoid valve or drive component to the flushing device. Only one water path needs to be led out to the inlet channel, thus effectively simplifying the system structure and reducing manufacturing costs while achieving multi-functional flushing.

[0018] In some embodiments, the periphery of the water-blocking flange is sealed against the wall of the receiving groove. A drain outlet is provided on the water-blocking flange. When the water inlet channel is not filled with water, the water in the inlet channel can flow into the receiving groove through the drain outlet and then into the bottom flushing channel via the drain channel. By providing a drain outlet on the water-blocking flange and utilizing the sealed contact between the periphery of the water-blocking flange and the wall of the receiving groove, a key pressure release mechanism is constructed. Specifically, when the water inlet channel stops flowing, the water pressure previously acting on the side of the water-blocking flange facing away from the second elastic element needs to be released so that the limiting rod can reliably rebound and extend under the elastic force of the second elastic element. The drain outlet provides a pressure relief channel for this purpose, allowing water stagnating in the water inlet channel to flow into the receiving groove through the drain outlet and then into the bottom flushing channel via the drain channel. This design not only promptly relieves the water pressure on the water-blocking protrusion, ensuring the timeliness and certainty of the limit rod's rebound action, thus guaranteeing the reliability of the water-blocking component being firmly abutted and limited in the second state; at the same time, this process also achieves the active discharge of residual water flow inside the water inlet channel and drive component, effectively preventing stagnant water accumulation and impurity deposition, thus improving the overall performance of the flushing device in terms of both operational reliability and water path cleanliness.

[0019] In some embodiments, the outer contour of the cross-section of the water-blocking flange is adapted to the inner contour of the cross-section of the receiving groove. By setting the outer contour of the cross-section of the water-blocking flange to adapt to the inner contour of the cross-section of the receiving groove, on the one hand, it ensures good centering and guiding performance of the water-blocking flange when it moves axially within the receiving groove, reducing the risk of obstructed movement due to misalignment or jamming, thereby improving the smoothness and reliability of the extension and retraction of the limiting rod; on the other hand, this tightly fitted structure significantly improves the sealing effect between the periphery of the water-blocking flange and the groove wall of the receiving groove, so that when water enters the inlet channel, the water flow can be effectively blocked on one side of the water-blocking flange, thereby converting the water pressure more concentratedly and efficiently into a driving force to push the water-blocking flange and the limiting rod to overcome the elastic force of the second elastic element, ensuring the timeliness and determinism of the state switching of the drive component.

[0020] In some embodiments, the cross-sectional area of ​​the drain outlet is smaller than that of the inlet channel. By setting the cross-sectional area of ​​the drain outlet to be smaller than that of the inlet channel, when water enters the inlet channel, the water flow is mainly blocked on the side of the water-blocking protrusion facing away from the second elastic member to form driving water pressure. Only a small amount of water can enter the receiving tank through the drain outlet and be discharged through the drain channel, thereby ensuring that the driving component has sufficient water pressure difference as a power source when switching between the first and second states. At the same time, this design can maintain a continuous small flow of drainage while ensuring the reliability of the switching action, which helps to keep the receiving tank and the drain channel clean and prevent impurities from accumulating.

[0021] In some embodiments, the periphery of the water-blocking protrusion is spaced apart from the wall of the receiving groove to form a water passage. The cross-sectional area of ​​the water passage is smaller than the cross-sectional area of ​​the water inlet channel. When the water inlet channel is not filled with water, the water in the water inlet channel can flow into the receiving groove through the water passage and then be discharged into the bottom flushing channel through the drainage channel. By setting a water passage gap with a cross-sectional area smaller than that of the inlet channel between the periphery of the water-blocking protrusion and the wall of the receiving tank, a small amount of water remaining in the inlet channel can flow into the receiving tank through the water passage gap when the inlet channel is not filled with water, and then be discharged into the bottom flushing channel through the drainage channel. This achieves automatic drainage of water accumulated in the inlet channel, effectively preventing water quality deterioration or bacterial growth caused by water residue. At the same time, since the cross-sectional area of ​​the water passage gap is smaller than that of the inlet channel, it ensures that when the inlet channel is filled with water normally, the water flow is mainly blocked on the side of the water-blocking protrusion away from the second elastic element to form driving water pressure, while only a small amount of water flows through the water passage gap. This ensures the reliability of the drive component's state switching based on water pressure and elasticity.

[0022] In some embodiments, the second elastic element is a compression spring and is sleeved on the limiting rod.

[0023] In some embodiments, the drainage channel is connected to the bottom of the receiving tank.

[0024] In some embodiments, the flushing element is rotatably connected to the inner circumference of the flushing channel via a pivot, and the elastic element is a torsion spring sleeved on the pivot. By rotatably connecting the flushing element to the inner circumference of the flushing channel via a pivot and specifying the elastic element as a torsion spring sleeved on the pivot, a high degree of structural integration and compact layout of the flushing element and the elastic element is achieved. The pivot serves as both the rotation fulcrum of the flushing element and the mounting shaft of the torsion spring, reducing the number of parts and simplifying assembly. The torque of the torsion spring acts directly on the pivot to drive the flushing element to rotate precisely around the axis, resulting in a short power transmission path and high efficiency, which helps the flushing element respond quickly to changes in water pressure. The torsion spring sleeved on the pivot makes full use of the space around the pivot, making the overall structure of the drive assembly more compact and facilitating its arrangement and installation within the limited space of the toilet flushing channel.

[0025] In some embodiments, the cross-sectional profile of the bottom flushing channel is larger than that of the water supply channel. The bottom flushing channel is axially aligned with the water supply channel, and a step is formed at the junction of the bottom flushing channel and the water supply channel. In the first state, the water-stopping member abuts against the step and blocks the water inlet. This structure, through the step, provides precise physical positioning and a sealing bearing surface for the water-stopping member, ensuring reliable sealing of the water inlet in the reset and locked state, preventing water leakage.

[0026] In some embodiments, the baffle is plate-shaped and its size is larger than the size of the inlet. This plate-shaped baffle, with its larger size than the inlet, allows it to completely cover and seal the inlet, ensuring that water cannot enter the bottom flushing channel through the inlet in the second state, achieving a reliable sealing effect. Simultaneously, the plate-shaped structure provides sufficient bearing area for the baffle, allowing it to move smoothly under water pressure in the third state, thereby improving the accuracy of the entire flushing device's operation.

[0027] In some embodiments, the brush ring channel is connected to the outer circumference of the water supply channel. This connection allows the brush ring channel to directly divert a portion of the water flow from the outer circumference of the water supply channel for flushing the toilet brush ring. This diversion method eliminates the need for an additional independent water inlet, simplifying the piping structure and reducing manufacturing costs. Furthermore, because the brush ring channel is directly connected to the water supply channel, it ensures stable water pressure and flow for brush ring flushing, improving the flushing effect. In addition, this connection method helps optimize the overall water circuit layout, allowing the water supply channel to simultaneously serve as a diversion hub for both the main flushing water circuit and the brush ring water circuit, improving space utilization efficiency and the controllability of water flow distribution.

[0028] In some embodiments, a flow-limiting orifice is formed within the brush ring channel, and the minimum cross-sectional area of ​​the flow-limiting orifice is smaller than any cross-sectional area of ​​the water supply channel and the cross-sectional area of ​​the water outlet. When the flushing device is in the second state, water enters the water supply channel and the water-blocking component blocks the water outlet, so the water flow can only flow into the brush ring channel. At this time, the flow-limiting orifice can increase the water flow velocity within the brush ring channel, thereby enhancing the flushing effect. When the flushing device switches to the third state, the water outlet opens, and the water supply channel connects with the bottom flushing channel. Since the cross-sectional area of ​​the water outlet is larger than the minimum cross-sectional area of ​​the flow-limiting orifice, the water flow will preferentially flow to the bottom flushing channel through the path with less resistance. This ensures that the bottom flushing channel receives sufficient flushing water flow while still distributing a portion of the water flow to the brush ring channel through the flow-limiting orifice, achieving coordinated flushing of the brush ring channel and the bottom flushing channel, optimizing the dynamic distribution of water flow, and improving flushing efficiency and water-saving effect.

[0029] In some embodiments, when the water supply channel starts supplying water, the flushing device first maintains the second state for a preset duration, and then switches to the third state. By controlling the flushing device to maintain the second state for a preset duration, a "brush ring first, then bottom flush" sequence is achieved. This allows the water flow accelerated by the flow-limiting orifice in the brush ring channel to preferentially and centrally flush the upper edge of the toilet bowl's inner wall, pre-flushing the dirt attached to the inner wall to below the water surface at the bottom of the bowl. This technical feature creates favorable conditions for the subsequent main flush in the third state, because the dirt flushed underwater is more easily swept away by the strong siphon flow generated by the bottom flush channel, thereby avoiding dirt residue and improving the cleaning effect of a single flush.

[0030] In some embodiments, the flushing device further includes a brush ring nozzle and a bottom flush pipe. The brush ring nozzle communicates with the brush ring channel and is installed on the top of the toilet bowl. One end of the bottom flush pipe is connected to the bottom flush channel, and the other end is connected to the bottom of the toilet bowl. By setting the brush ring nozzle and bottom flush pipe, and explicitly defining that the brush ring nozzle communicates with the brush ring channel and is installed on the top of the toilet bowl, and that one end of the bottom flush pipe is connected to the bottom flush channel and the other end is connected to the bottom of the toilet bowl, the water flowing out of the brush ring channel can efficiently and evenly brush the inner wall of the toilet bowl with the brush ring nozzle at the optimal angle and coverage. At the same time, the water flowing out of the bottom flush channel can directly act on the drain outlet at the bottom of the toilet bowl with the shortest path and minimal energy loss through the bottom flush pipe, thereby most effectively stimulating the siphon effect and achieving powerful sewage discharge.

[0031] In some embodiments, the flushing device further includes a water tank, a water pump housed within the water tank, a water supply pipe, and a connector. One end of the water supply pipe is connected to the water pump, and the other end of the water supply pipe is connected to the water supply channel via the connector. By setting up a water tank, water pump, water supply pipe, and connector, and explicitly defining that one end of the water supply pipe is connected to the water pump and the other end is connected to the water supply channel via the connector, an independent, controllable, and pressure-stable water supply system is constructed for the entire flushing device. Through the start / stop and power adjustment of the water pump, the water pressure and flow rate entering the water supply channel can be more precisely controlled, thereby providing reliable hydraulic conditions to ensure the stable operation of the water-blocking component under different conditions and the final flushing effect of the brush ring channel and the bottom flushing channel.

[0032] This application also provides a smart toilet, characterized in that it includes a toilet seat with a urinal, an integrated water inlet valve, and a flushing device as described in any of the above embodiments, wherein the flushing device is disposed on the toilet seat.

[0033] The aforementioned smart toilet, because it includes the flushing device described in any of the above embodiments, also has at least the following beneficial effects: The technical effect of the flushing device of the smart toilet provided in this application is that, by setting a valve body with a water supply channel, a bottom flushing channel, a brush ring channel, and a water outlet, and cooperating with a movable water-blocking component, a first elastic component providing reset elasticity, and a drive assembly composed of a housing, a second elastic component, and a limiting rod, the automatic switching and precise control of the flushing device between three states are achieved. Specifically, in the first state, water enters the water inlet channel and drives the limiting rod to retract through the water-blocking protrusion, while the water supply channel is not supplied with water, so that the water-blocking component blocks the water outlet under the action of the first elastic component, preparing for subsequent state switching. In the second state, water enters the water inlet channel and stops entering, the limiting rod extends under the action of the second elastic component and abuts against the water-blocking component, assisting it in firmly blocking the water outlet. At this time, water is supplied through the water supply channel, and the water flow is completely guided to the brush ring channel, realizing the dedicated brush ring flushing of the toilet bowl sidewall. In the third state, water is supplied simultaneously to the inlet channel and the supply channel. The water pressure in the inlet channel drives the limit rod to retract, releasing the limit on the water-blocking component. Simultaneously, the water pressure in the supply channel overcomes the elastic force of the first elastic element, pushing the water-blocking component to open the water inlet, allowing water to simultaneously enter the brush ring channel and the bottom flushing channel, achieving combined flushing of the toilet bowl's sidewalls and bottom. It is important to emphasize that since both the inlet channel and the supply channel can be directly connected to the existing integrated inlet valve of the smart toilet, which can already supply water to the tank or spray gun, there is no need to add an additional solenoid valve or drive component to the flushing device. Only one water path needs to be led out to the inlet channel, thus effectively simplifying the system structure and reducing manufacturing costs while achieving multi-functional flushing. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 is a perspective sectional view of a toilet seat provided in an embodiment of the present invention.

[0036] Figure 2 is a structural schematic diagram of a flushing device provided in an embodiment of the present invention.

[0037] Figure 3 is another structural schematic diagram of a flushing device provided in an embodiment of the present invention.

[0038] Figure 4 is another structural schematic diagram of a flushing device provided in an embodiment of the present invention.

[0039] Figure 5 is a partial cross-sectional view of a flushing device provided in an embodiment of the present invention, which can be considered as the second state.

[0040] Figure 6 is another partial cross-sectional view of a flushing device provided in an embodiment of the present invention, which can be considered as the second state.

[0041] Figure 7 is a partially enlarged cross-sectional view of a flushing device provided in an embodiment of the present invention, which can be considered as the third state.

[0042] Figure 8 is a structural schematic diagram of a smart toilet provided in an embodiment of the present invention.

[0043] Figure label:

[0044] 10. Smart toilet; 20. Toilet seat; 21. Toilet bowl; 30. Flushing device; 100. Valve body; 110. Water supply channel; 120. Bottom flush channel; 130. Brush ring channel; 131. Flow limiting hole; 140. Water outlet; 150. Step section; 160. Telescopic hole; 200. Water-blocking component; 210. First elastic component; 220. Rotating shaft; 300. Drive assembly; 310. Housing; 311. Water inlet channel; 312. Drainage channel; 313. Receiving groove; 320. Second elastic component; 330. Limiting rod; 340. Water-blocking flange; 341. Drain outlet; 410. Brush ring nozzle; 420. Bottom flush pipe; 430. Water tank; 440. Water pump; 450. Water supply pipe; 460. Connector; 470. Integrated water inlet valve. Detailed Implementation

[0045] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0046] Please refer to Figures 1 to 7. In some embodiments, this application provides a flushing device 30 for a smart toilet 10. The flushing device 30 includes a valve body 100, a water-blocking component 200, a first elastic component 210, and a drive assembly 300. The valve body 100 has a water supply channel 110, a bottom flushing channel 120, and a brush ring channel 130. The brush ring channel 130 communicates with the water supply channel 110. A water outlet 140 is formed between the water supply channel 110 and the bottom flushing channel 120. An expansion hole 160 is provided on the outer peripheral surface of the bottom flushing channel 120. The brush ring channel 130 is used to deliver water to the side wall of the toilet bowl 21 of the toilet seat 20, and the bottom flushing channel 120 is used to deliver water to the bottom of the toilet bowl 21. The water-blocking component 200 is movably disposed within the valve body 100 and is used to selectively block or open the water outlet 140. The first elastic element 210 is disposed within the valve body 100 and can provide the water-blocking element 200 with an elastic force that tends to block the water outlet 140; the drive assembly 300 includes a housing 310, a second elastic element 320, and a limiting rod 330. The housing 310 is connected to the valve body 100 and forms an inlet channel 311, a drain channel 312, and a receiving groove 313. One end of the limiting rod 330 is disposed within the receiving groove 313, and the other end of the limiting rod 330 is telescopically inserted through the telescopic hole 160. The outer periphery of the limiting rod 330... The surface is provided with a water-blocking protrusion 340, which is located in the receiving groove 313. The second elastic member 320 is located on the side of the water-blocking protrusion 340 facing away from the telescopic hole 160 and elastically abuts against the groove wall of the receiving groove 313 and the water-blocking protrusion 340. The water supply channel 110 is used to communicate with the integrated water inlet valve 470 and can supply water to the side of the water-blocking protrusion 340 facing away from the second elastic member 320. One end of the drainage channel 312 is connected to the receiving groove 313, and the other end of the drainage channel 312 is connected to the bottom flushing channel 120.

[0047] The flushing device 30 has a first state, a second state, and a third state.

[0048] In the first state, water enters the water inlet channel 311, allowing the water-blocking protrusion 340 to overcome the elastic force of the second elastic member 320 under the water pressure of the water inlet channel 311 and drive the limiting rod 330 to retract in a direction away from the bottom flushing channel. The water supply channel 110 is not supplied with water, and the water-blocking member 200 can be reset under the elastic force of the first elastic member 210 to block the water outlet 140.

[0049] As shown in Figures 5 and 6, in the second state, the water-blocking component 200 blocks the water outlet 140, and the water inlet channel 311 is not filled with water. This allows the limiting rod 330 to extend into the bottom flushing channel 120 along the through hole under the elastic force of the second elastic component 320 and abut against the side of the water-blocking component 200 facing away from the water supply channel 110. The water supply channel 110 supplies water, and the water-blocking component 200 can prevent the water in the water supply channel 110 from entering the bottom flushing channel 120, and make the water in the water supply channel 110 flow only to the brush ring channel 130.

[0050] As shown in Figure 7, in the third state, water enters the inlet channel 311, allowing the water-blocking protrusion 340 to overcome the elastic force of the second elastic member 320 under the water pressure of the inlet channel 311 and drive the limiting rod 330 to retract in a direction away from the bottom flushing channel and separate from the water-blocking member 200. Water is supplied through the water supply channel 110, and the water-blocking member 200, which originally blocked the water outlet 140, can move in a direction that overcomes the elastic force of the first elastic member 210 under the water pressure in the water supply channel 110, so that the water supply channel 110 and the bottom flushing channel 120 can be connected through the water outlet 140, allowing water in the water supply channel 110 to enter the bottom flushing channel 120.

[0051] The aforementioned flushing device 30 can achieve at least the following beneficial effects:

[0052] The technical advantage of the flushing device 30 provided in this application lies in the fact that, by setting a valve body 100 with a water supply channel 110, a bottom flushing channel 120, a brush ring channel 130, and a water outlet 140, and cooperating with a movable water-blocking component 200, a first elastic component 210 providing reset elasticity, and a drive assembly 300 composed of a housing 310, a second elastic component 320, and a limiting rod 330, the flushing device 30 achieves automatic switching and precise control between three states. Specifically, in the first state, water enters the water inlet channel 311 and drives the limiting rod 330 to retract through the water-blocking protrusion 340, while the water supply channel 110 is not supplied with water, so that the water-blocking component 200 blocks the water outlet 140 under the action of the first elastic component 210, preparing for subsequent state switching. In the second state, the water inlet channel 311 stops supplying water, and the limiting rod 330 extends under the action of the second elastic element 320 and abuts against the water-blocking element 200, assisting in its stable sealing of the water outlet 140. At this time, the water supply channel 110 supplies water, and the water flow is completely guided to the brush ring channel 130, realizing dedicated brush ring flushing of the toilet bowl 21 sidewalls. In the third state, the water inlet channel 311 and the water supply channel 110 supply water simultaneously. The water pressure of the water inlet channel 311 drives the limiting rod 330 to retract to release the limiting of the water-blocking element 200. At the same time, the water pressure of the water supply channel 110 overcomes the elasticity of the first elastic element 210 and pushes the water-blocking element 200 to open the water outlet 140, allowing water to simultaneously enter the brush ring channel 130 and the bottom flushing channel 120, realizing joint flushing of the toilet bowl 21 sidewalls and bottom. It should be emphasized that, since both the water inlet channel 311 and the water supply channel 110 can be directly connected to the original integrated water inlet valve 470 of the smart toilet 10, and the integrated water inlet valve 470 can be used to supply water to the water tank 430 or the spray gun, there is no need to add an additional solenoid valve or drive component to the flushing device 30. It is only necessary to lead out one water path to the water inlet channel 311. Thus, while realizing multi-functional flushing, the system structure is effectively simplified and the manufacturing cost is reduced.

[0053] In some embodiments, the periphery of the water-blocking flange 340 is in sealing contact with the wall of the receiving groove 313. A drain outlet 341 is provided on the water-blocking flange 340. When the water inlet channel 311 is not filled with water, the water in the water inlet channel 311 can flow into the receiving groove 313 through the drain outlet 341 and then be discharged into the bottom flushing channel 120 via the drain channel 312. By providing a drain outlet 341 on the water-blocking flange 340 and utilizing the sealing contact between the periphery of the water-blocking flange 340 and the wall of the receiving groove 313, a key pressure release mechanism is constructed. Specifically, when the water inlet channel 311 stops receiving water, the water pressure that previously acted on the side of the water-blocking flange 340 facing away from the second elastic member 320 needs to be released so that the limiting rod 330 can reliably rebound and extend under the elastic force of the second elastic member 320. The drain outlet 341 provides a pressure relief channel, allowing water stagnant in the inlet channel 311 to flow into the receiving tank 313 through the drain outlet 341, and then into the bottom flushing channel 120 through the drain channel 312. This design not only promptly relieves the water pressure on the water-blocking flange 340, ensuring the timeliness and certainty of the rebound action of the limit rod 330, thus guaranteeing the reliability of the water-blocking component 200 being firmly abutted and limited in the second state; at the same time, this process also realizes the active discharge of residual water inside the inlet channel 311 and the drive component 300, effectively preventing stagnant water accumulation and impurity deposition, and improving the overall performance of the flushing device 30 in terms of both operational reliability and water path cleanliness.

[0054] In some embodiments, the outer contour of the cross-section of the water-blocking flange 340 is adapted to the inner contour of the cross-section of the receiving groove 313. By setting the outer contour of the cross-section of the water-blocking flange 340 to be adapted to the inner contour of the cross-section of the receiving groove 313, on the one hand, it ensures that the water-blocking flange 340 has good centering and guiding properties when it moves along its axial direction in the receiving groove 313, reducing the risk of poor movement due to misalignment or jamming, thereby improving the smoothness and reliability of the extension and retraction of the limiting rod 330; on the other hand, this closely fitted structure significantly improves the sealing effect between the periphery of the water-blocking flange 340 and the groove wall of the receiving groove 313, so that when water enters the water inlet channel 311, the water flow can be effectively blocked on one side of the water-blocking flange 340, thereby converting the water pressure more concentratedly and efficiently into a driving force to push the water-blocking flange 340 and the limiting rod 330 to move against the elastic force of the second elastic element 320, ensuring the timeliness and certainty of the state switching of the drive assembly 300.

[0055] As shown in Figure 6, in some embodiments, the cross-sectional area of ​​the drain outlet 341 is smaller than that of the inlet channel 311. By setting the cross-sectional area of ​​the drain outlet 341 to be smaller than that of the inlet channel 311, when water enters the inlet channel 311, the water flow is mainly blocked on the side of the water-blocking protrusion 340 facing away from the second elastic member 320 to form driving water pressure. Only a small amount of water can enter the receiving tank 313 through the drain outlet 341 and be discharged through the drain channel 312, thereby ensuring that the drive assembly 300 has sufficient water pressure difference as a power source when switching between the first state and the second state. At the same time, this design can maintain a continuous small flow of drainage while ensuring the reliability of the switching action, which helps to keep the receiving tank 313 and the drain channel 312 clean and prevent impurities from accumulating.

[0056] In some embodiments, the periphery of the water-blocking protrusion 340 is spaced apart from the wall of the receiving groove 313 to form a water passage gap. The cross-sectional area of ​​the water passage gap is smaller than the cross-sectional area of ​​the water inlet channel 311. When the water inlet channel 311 is not filled with water, the water in the water inlet channel 311 can flow into the receiving groove 313 through the water passage gap and then be discharged into the bottom flushing channel 120 through the drainage channel 312. By setting a water passage gap with a cross-sectional area smaller than that of the inlet channel 311 between the periphery of the water-blocking protrusion 340 and the wall of the receiving groove 313, a small amount of water remaining in the inlet channel 311 can flow into the receiving groove 313 through the water passage gap when the inlet channel 311 is not filled with water, and then be discharged into the bottom flushing channel 120 through the drainage channel 312. This achieves automatic drainage of water accumulated in the inlet channel 311, effectively preventing water quality deterioration or bacterial growth caused by water accumulation. At the same time, since the cross-sectional area of ​​the water passage gap is smaller than that of the inlet channel 311, it ensures that when the inlet channel 311 is normally filled with water, the water flow is mainly blocked on the side of the water-blocking protrusion 340 facing away from the second elastic member 320 to form driving water pressure, while only a small amount of water flows through the water passage gap. This ensures the reliability of the drive assembly 300 in switching states based on water pressure and elasticity.

[0057] In some embodiments, the second elastic element 320 is a compression spring and is sleeved on the limiting rod 330.

[0058] As shown in Figure 6, in some embodiments, the drainage channel 312 is connected to the bottom of the receiving trough 313.

[0059] As shown in Figures 6 and 7, in some embodiments, the water-blocking member 200 is rotatably connected to the inner circumferential surface of the bottom flushing channel 120 via a rotating shaft 220, and the elastic member is a torsion spring sleeved on the rotating shaft 220. By rotatably connecting the water-blocking component 200 to the inner circumference of the bottom flushing channel 120 via the rotating shaft 220, and specifying the elastic element as a torsion spring sleeved on the rotating shaft 220, a high degree of structural integration and compact layout of the water-blocking component 200 and the elastic element are achieved. The rotating shaft 220 serves as both the rotation fulcrum of the water-blocking component 200 and the mounting shaft of the torsion spring, reducing the number of parts and simplifying assembly. The torque of the torsion spring acts directly on the rotating shaft 220 to drive the water-blocking component 200 to rotate precisely around the shaft, resulting in a short power transmission path and high efficiency, which helps the water-blocking component 200 to respond quickly to changes in water pressure. The torsion spring sleeved on the rotating shaft 220 makes full use of the space around the rotating shaft 220, making the overall structure of the drive assembly 300 more compact, which is beneficial for arrangement and installation within the limited space of the toilet bottom flushing channel 120.

[0060] As shown in Figures 5 and 7, in some embodiments, the cross-sectional profile of the bottom flushing channel 120 is larger than that of the water supply channel 110. The bottom flushing channel 120 is axially aligned with the water supply channel 110, and a step portion 150 is formed at the junction of the bottom flushing channel 120 and the water supply channel 110. In the first state, the water-blocking member 200 abuts against the step portion 150 and blocks the water outlet 140. The cross-sectional profile of the bottom flushing channel 120 is larger than that of the water supply channel 110. The bottom flushing channel 120 is axially aligned with the water supply channel 110, and a step portion 150 is formed at the connection between the bottom flushing channel 120 and the water supply channel 110. In the first state, the water-blocking member 200 abuts against the step portion 150 and blocks the water outlet 140. This structure provides the water-blocking member 200 with precise physical positioning and sealing bearing surface through the step portion 150, ensuring that the water-blocking member 200 reliably blocks the water outlet 140 in the reset and locked state, preventing water leakage.

[0061] As shown in Figure 5, in some embodiments, the water-blocking member 200 is plate-shaped and its size is larger than that of the water inlet 140. This plate-shaped structure allows the water-blocking member 200 to completely cover and seal the water inlet 140, ensuring that water cannot enter the bottom flushing channel 120 through the water inlet 140 in the second state, achieving a reliable sealing effect. Simultaneously, the plate-shaped structure provides sufficient bearing area for the water-blocking member 200, enabling it to move smoothly under water pressure in the third state, thereby improving the accuracy of the entire flushing device 30's operation.

[0062] As shown in Figure 7, in some embodiments, the brush ring channel 130 is connected to the outer peripheral surface of the water supply channel 110. This connection allows the brush ring channel 130 to directly divert a portion of the water flow from the outer peripheral surface of the water supply channel 110 for flushing the toilet brush ring. This diversion method eliminates the need for an additional independent water inlet, simplifying the piping structure and reducing manufacturing costs. Furthermore, since the brush ring channel 130 is directly connected to the water supply channel 110, it ensures stable water pressure and flow for brush ring flushing, improving the flushing effect. In addition, this connection method helps optimize the overall water circuit layout, allowing the water supply channel 110 to simultaneously serve as a diversion hub for both the main flushing water circuit and the brush ring water circuit, improving space utilization efficiency and the controllability of water flow distribution.

[0063] As shown in Figure 7, in some embodiments, a flow-limiting orifice 131 is formed in the brush ring channel 130, and the minimum cross-sectional area of ​​the flow-limiting orifice 131 is smaller than any cross-sectional area of ​​the water supply channel 110 and the cross-sectional area of ​​the water outlet 140. When the flushing device 30 is in the second state, water enters the water supply channel 110 and the water-blocking component 200 blocks the water outlet 140. The water flow can only flow to the brush ring channel 130. At this time, the flow-limiting hole 131 can increase the water flow velocity in the brush ring channel 130, thereby enhancing the flushing effect. When the flushing device 30 switches to the third state, the water outlet 140 opens, and the water supply channel 110 is connected to the bottom flushing channel 120. Since the cross-sectional area of ​​the water outlet 140 is larger than the minimum cross-sectional area of ​​the flow-limiting hole 131, the water flow will preferentially flow to the bottom flushing channel 120 through the path with less resistance. Thus, while ensuring that the bottom flushing channel 120 receives sufficient flushing water flow, a portion of the water flow can still be allocated to the brush ring channel 130 through the flow-limiting hole 131, realizing the coordinated flushing of the brush ring channel 130 and the bottom flushing channel 120, optimizing the dynamic distribution of water flow, and improving flushing efficiency and water-saving effect.

[0064] In some embodiments, when the water supply channel 110 starts supplying water, the flushing device 30 first maintains the second state for a preset duration, and then switches to the third state. By controlling the flushing device 30 to maintain the second state for a preset duration, the sequential action of "brushing the rim first, then flushing the bottom" is achieved. This allows the water flow accelerated by the flow-limiting hole 131 in the rim-brushing channel 130 to preferentially and centrally flush the upper edge of the inner wall of the toilet bowl 21, pre-flushing the dirt attached to the inner wall to below the water surface at the bottom of the toilet bowl 21. This technical feature creates favorable conditions for the subsequent main flush in the third state, because the dirt flushed underwater is more easily swept away by the strong siphon flow generated by the bottom flushing channel 120, thereby avoiding dirt residue and improving the cleaning effect of a single flush.

[0065] As shown in Figure 3, in some embodiments, the flushing device 30 further includes a brush ring nozzle 410 and a bottom flush pipe 420. The brush ring nozzle 410 is connected to the brush ring channel 130 and is used to be installed on the top of the toilet bowl 21. One end of the bottom flush pipe 420 is connected to the bottom flush channel 120, and the other end of the bottom flush pipe 420 is connected to the bottom of the toilet bowl 21. By setting up a brush ring nozzle 410 and a bottom flush pipe 420, and clearly defining that the brush ring nozzle 410 is connected to the brush ring channel 130 and installed on the top of the toilet bowl 21, and that one end of the bottom flush pipe 420 is connected to the bottom flush channel 120 and the other end is connected to the bottom of the toilet bowl 21, the water flowing out of the brush ring channel 130 can efficiently and evenly brush the inner wall of the toilet bowl 21 with the optimal angle and coverage through the brush ring nozzle 410. At the same time, the water flowing out of the bottom flush channel 120 can directly act on the sewage outlet at the bottom of the toilet bowl 21 through the bottom flush pipe 420 with the shortest path and the least energy loss, thereby most effectively stimulating the siphon effect and achieving powerful sewage discharge.

[0066] As shown in Figure 2, in some embodiments, the flushing device 30 further includes a water tank 430, a water pump 440 disposed within the water tank 430, a water supply pipe 450, and a connector 460. One end of the water supply pipe 450 is connected to the water pump 440, and the other end of the water supply pipe 450 is connected to the water supply channel 110 via the connector 460. By setting up the water tank 430, water pump 440, water supply pipe 450, and connector 460, and explicitly defining that one end of the water supply pipe 450 is connected to the water pump 440 and the other end is connected to the water supply channel 110 via the connector 460, an independent, controllable, and pressure-stable water supply system is constructed for the entire flushing device 30. By starting and stopping the water pump 440 and adjusting its power, the water pressure and flow rate entering the water supply channel 110 can be controlled more precisely, thereby providing reliable hydraulic conditions to ensure the stable operation of the water-separating component 200 under different conditions and the final flushing effect of the brush ring channel 130 and the bottom flushing channel 120.

[0067] As shown in Figure 8, this application also provides a smart toilet 10, characterized in that it includes a toilet seat 20 with a commode 21, an integrated water inlet valve 470, and a flushing device 30 as described in any of the above embodiments, wherein the flushing device 30 is disposed on the toilet seat 20.

[0068] The aforementioned smart toilet 10, because it includes the flushing device 30 described in any of the above embodiments, also has at least the following beneficial effects: The technical effect of the flushing device 30 of the smart toilet 10 provided in this application is that, by setting a valve body 100 having a water supply channel 110, a bottom flushing channel 120, a brush ring channel 130, and a water outlet 140, and cooperating with a movable water-blocking component 200, a first elastic component 210 providing reset elasticity, and a drive assembly 300 composed of a housing 310, a second elastic component 320, and a limiting rod 330, the flushing device 30 achieves automatic switching and precise control between three states. Specifically, in the first state, water enters the water inlet channel 311 and drives the limiting rod 330 to retract through the water-blocking protrusion 340, while the water supply channel 110 is not supplied with water, so that the water-blocking component 200 blocks the water outlet 140 under the action of the first elastic component 210, preparing for subsequent state switching. In the second state, the water inlet channel 311 stops supplying water, and the limiting rod 330 extends under the action of the second elastic element 320 and abuts against the water-blocking element 200, assisting in its stable sealing of the water outlet 140. At this time, the water supply channel 110 supplies water, and the water flow is completely guided to the brush ring channel 130, realizing dedicated brush ring flushing of the toilet bowl 21 sidewalls. In the third state, the water inlet channel 311 and the water supply channel 110 supply water simultaneously. The water pressure of the water inlet channel 311 drives the limiting rod 330 to retract to release the limiting of the water-blocking element 200. At the same time, the water pressure of the water supply channel 110 overcomes the elasticity of the first elastic element 210 and pushes the water-blocking element 200 to open the water outlet 140, allowing water to simultaneously enter the brush ring channel 130 and the bottom flushing channel 120, realizing joint flushing of the toilet bowl 21 sidewalls and bottom. It should be emphasized that, since both the water inlet channel 311 and the water supply channel 110 can be directly connected to the original integrated water inlet valve 470 of the smart toilet 10, and the integrated water inlet valve 470 can be used to supply water to the water tank 430 or the spray gun, there is no need to add an additional solenoid valve or drive component to the flushing device 30. It is only necessary to lead out one water path to the water inlet channel 311. Thus, while realizing multi-functional flushing, the system structure is effectively simplified and the manufacturing cost is reduced.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0071] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0072] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0073] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0074] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0075] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0076] In the description of this specification, references to terms such as "an embodiment," "another implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

Claims

1. A flushing device for a smart toilet, characterized in that, The flushing device includes: a valve body having a water supply channel, a bottom flushing channel, and a brush ring channel, the brush ring channel communicating with the water supply channel, a water outlet being formed between the water supply channel and the bottom flushing channel, and an expansion hole being provided on the outer circumferential surface of the bottom flushing channel; the brush ring channel being used to deliver water to the side wall of the toilet bowl, and the bottom flushing channel being used to deliver water to the bottom of the toilet bowl; a water-blocking member movably disposed within the valve body and used to selectively block or open the water outlet; a first elastic member disposed within the valve body and capable of providing elastic force to the water-blocking member to tend to block the water outlet; and a drive assembly, the drive assembly including a housing, a second... The valve body includes an elastic element and a limiting rod. The housing is connected to the valve body and forms an inlet channel, a drain channel, and a receiving groove. One end of the limiting rod is located within the receiving groove, and the other end is retractably inserted through the telescopic hole. A water-blocking flange is provided on the outer circumference of the limiting rod, located within the receiving groove. A second elastic element is located on the side of the water-blocking flange facing away from the telescopic hole and elastically abuts against the groove wall of the receiving groove and the water-blocking flange. The water supply channel communicates with the integrated inlet valve and supplies water to the side of the water-blocking flange facing away from the second elastic element. One end of the drain channel communicates with the receiving groove, and the other end communicates with the bottom flushing channel. The flushing device has a first state, a second state, and a third state. In the first state, water enters the inlet channel, causing the water-blocking protrusion to overcome the elastic force of the second elastic element under the water pressure of the inlet channel and drive the limiting rod to retract in a direction away from the bottom flushing channel. Water is not supplied to the water supply channel, and the water-blocking member can reset under the elastic force of the first elastic element to block the water outlet. In the second state, the water-blocking member blocks the water outlet, and water does not enter the inlet channel. The limiting rod can extend along the through hole into the bottom flushing channel under the elastic force of the second elastic element and abut against the side of the water-blocking member opposite to the water supply channel. The water supply channel is equipped with a water-blocking component that prevents water from entering the under-flushing channel and directs water flow only to the brush ring channel. In the third state, water enters the inlet channel, causing the water-blocking protrusion to overcome the elastic force of the second elastic element under the water pressure of the inlet channel and drive the limiting rod to retract away from the under-flushing channel and separate from the water-blocking component. Water is supplied through the water supply channel, and the water-blocking component that originally blocked the water outlet can move in the direction of overcoming the elastic force of the first elastic element under the water pressure of the water supply channel, allowing the water supply channel and the under-flushing channel to connect through the water outlet, allowing water in the water supply channel to enter the under-flushing channel.

2. The flushing device according to claim 1, characterized in that, The periphery of the water-blocking protrusion is sealed against the wall of the receiving groove. A drain outlet is provided on the water-blocking protrusion. When the water inlet channel is not filled with water, the water in the water inlet channel can flow into the receiving groove through the drain outlet and then be discharged into the bottom flushing channel through the drain channel.

3. The flushing device according to claim 2, characterized in that, The outer contour of the cross-section of the water-blocking protrusion is adapted to the inner contour of the cross-section of the receiving groove; and / or, the cross-sectional area of ​​the drain outlet is smaller than the cross-sectional area of ​​the water inlet channel.

4. The flushing device according to claim 1, characterized in that, The periphery of the water-blocking protrusion is spaced apart from the wall of the receiving trough to form a water passage. The cross-sectional area of ​​the water passage is smaller than the cross-sectional area of ​​the water inlet channel. When the water inlet channel is not filled with water, the water in the water inlet channel can flow into the receiving trough through the water passage and then be discharged into the bottom flushing channel through the drainage channel.

5. The flushing device according to claim 1, characterized in that, The drainage channel is connected to the bottom of the receiving tank.

6. The flushing device according to claim 1, characterized in that, The water-blocking component is rotatably connected to the inner circumference of the bottom flushing channel via a rotating shaft, and the elastic component is a torsion spring sleeved on the rotating shaft.

7. The flushing device according to claim 6, characterized in that, The cross-sectional profile of the bottom flushing channel is larger than that of the water supply channel. The bottom flushing channel and the water supply channel are axially aligned, and a step is formed at the connection between the bottom flushing channel and the water supply channel. In the first state, the water-blocking member abuts against the step and blocks the water outlet.

8. The flushing device according to claim 7, characterized in that, The water-blocking component is plate-shaped and its size is larger than that of the water inlet.

9. The flushing device according to any one of claims 1 to 8, characterized in that, The brush ring channel is connected to the outer circumference of the water supply channel; and / or, the second elastic element is a compression spring and sleeved on the limiting rod; and / or, a flow-limiting hole is formed in the brush ring channel, and the minimum cross-sectional area of ​​the flow-limiting hole is smaller than any cross-sectional area of ​​the water supply channel and the cross-sectional area of ​​the water outlet. And / or, when the water supply channel starts supplying water, the flushing device first maintains the second state for a preset time, and then switches to the third state; and / or, the flushing device further includes a brush ring nozzle and a bottom flush pipe, the brush ring nozzle is connected to the brush ring channel, the brush ring nozzle is used to be installed on the top of the toilet bowl, one end of the bottom flush pipe is connected to the bottom flush channel, and the other end of the bottom flush pipe is connected to the bottom of the toilet bowl; and / or, the flushing device further includes a water tank, a water pump disposed in the water tank, a water supply pipe and a connector, one end of the water supply pipe is connected to the water pump, and the other end of the water supply pipe is connected to the water supply channel through the connector.

10. A smart toilet, characterized in that, The toilet includes a toilet seat with a commode, an integrated water inlet valve, and a flushing device as described in any one of claims 1 to 9, wherein the flushing device is disposed on the toilet seat.

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