Flushing system and toilet bowl applying the same

Abstract

This utility model discloses a flushing system and a toilet with a flushing system. The flushing system includes: a water inlet assembly comprising a first water path, a second water path, and a third water path; a switching assembly comprising a fourth water path, a fifth water path, a switching valve, and a resilient valve; the outlet end of a water pump is connected to the fourth water path; a first floating mechanism comprising a first container and a first float, the first float being connected to a control valve; a second floating mechanism comprising a second container and a second float buoyantly placed in the second container, the second float being connected to the switching valve; and a Venturi channel connected to the water inlet side of the fourth water path. The flushing system can complete flushing operations such as brush ring flushing, bottom spray flushing, secondary brush ring flushing, and water seal replenishment in both power-on and power-off conditions, with the cooperation of the control valve, switching valve, and other components. It eliminates the need for a battery required for conventional pump flushing systems during power outages, eliminating the need for battery replacement, improving safety, and reducing the inconvenience of periodic battery replacements.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware flushing technology, and in particular to a flushing system and a toilet using the same. Background Technology

[0002] Current smart toilets typically use a water pump to draw water from the tank to the flushing system, thus enabling the flushing function. The water pump requires electricity to operate. To prevent the water pump from failing to flush during municipal power outages, it usually needs to be equipped with a battery or backup power source. Users need to replace the backup battery after a period of use, which is inconvenient and easy to forget, leading to the inability to flush during power outages. Furthermore, the internal switching between up and down flushing uses electrically controlled valves such as solenoid valves and electronic switching valves. These valves are expensive and have a short lifespan, resulting in high operating costs. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes a flushing system.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model also proposes a toilet with the above-mentioned flushing system.

[0006] The flushing system according to a first aspect of the present invention includes:

[0007] The water inlet assembly includes a first water passage, a second water passage, and a third water passage. The first water passage is connected to the third water passage, and a control valve is provided between them. The second water passage is connected to the third water passage.

[0008] The switching assembly includes a fourth water passage, a fifth water passage, a switching valve, and a resilient valve. The switching valve is installed between one end of the fourth water passage and the inlet side of the fifth water passage. The resilient valve is movably installed between the outlet side of the fourth water passage and the outlet side of the fifth water passage. The resilient valve tends to move elastically in the direction of blocking the outlet side of the fourth water passage. The inlet sides of the first water passage and the fourth water passage are connected, and a manual valve is provided between them.

[0009] A water pump, the outlet of which is connected to the inlet side of the fourth water passage;

[0010] A first floating mechanism includes a first container and a first float buoyantly disposed in the first container, the first float being connected to the control valve such that the first float controls the opening and closing of the control valve when it floats.

[0011] The second floating mechanism includes a second container and a second float that is floatably placed in the second container. The second float is connected to the switching valve so that the switching valve is controlled to open or close when the second float floats. The second water passage is connected between the second container and the third water passage.

[0012] A Venturi pipe, which can draw in external liquid when water flows through it, is connected to the outlet side of the fourth water passage.

[0013] The flushing system according to the embodiments of this utility model has at least the following beneficial effects: the flushing system can complete flushing operations such as brush ring, bottom spray flushing, secondary brush ring, and water seal replenishment in both power-on and power-off conditions with the cooperation of control valves, switching valves and other components; it saves the storage battery required by conventional pump flushing when power is off, and users do not need to replace the battery, which is safer and reduces the trouble of needing to replace the battery every once in a while.

[0014] According to some embodiments of this utility model, the fourth water passage includes a fourth inlet channel and a fourth outlet channel. The water pump is connected to the fourth inlet channel. The downstream end of the fourth inlet channel is the fourth inlet port, and the upstream end of the fourth outlet channel is the fourth outlet port. The fourth outlet port is arranged around the fourth inlet port. The fifth water passage includes a fifth inlet channel and a fifth outlet channel. The downstream end of the fifth inlet channel is the fifth inlet port, and the upstream end of the fifth outlet channel is the fifth outlet port. The fifth inlet port is arranged around the fifth outlet port. The fourth inlet port and the fifth outlet port are positioned opposite each other. The fourth outlet port and the fifth inlet port are positioned opposite each other. The elastic valve is movably installed between the fourth outlet port and the fifth inlet port to block the fourth inlet port or the fifth outlet port. The elastic valve tends to move elastically in the direction of blocking the fourth inlet port.

[0015] According to some embodiments of the present invention, the elastic valve includes a first valve disc and a first elastic element. The first valve disc has a first sealing side and a second sealing side. The first valve disc is movably installed between the fourth water outlet and the fifth water inlet. The first sealing side faces the fourth water inlet, and the second sealing side faces the fifth water outlet. The first elastic element applies an elastic force to the first valve disc, causing it to move towards the fourth water inlet. The first valve disc can move to a first position where the first sealing side blocks the fourth water inlet and to a second position where the second sealing side blocks the fifth water outlet.

[0016] According to some embodiments of this utility model, a fourth water inlet is defined between the fourth water inlet channel and the fifth water inlet channel. The switching valve includes a first valve cover, a second valve disc, a first rocker arm, and a first pressure pad. The second valve disc is elastically deformable and mounted on the first valve cover. A first pressure chamber is defined between the second valve disc and the first valve cover. A first pressure relief hole communicating with the first pressure chamber is provided on the first valve cover. The first rocker arm is oscillatingly connected between the first valve cover and the second float. The first pressure pad is mounted on the first rocker arm. When the second float rises and falls, it drives the first rocker arm to move, causing the first pressure pad to block or leave the first pressure relief hole. The second valve disc can elastically move relative to the fourth water inlet to control the opening and closing of the fourth water inlet.

[0017] According to some embodiments of the present invention, the bottom of the first container is provided with a first drain hole, and a third float is installed on the first drain hole. The third float can float and rise relative to the first drain hole to close or open the first drain hole. The bottom of the second container is provided with a second drain hole, and a fourth float is installed on the second drain hole. The fourth float can float and rise relative to the second drain hole to close or open the second drain hole.

[0018] According to some embodiments of the present invention, the bottom of the second container is further provided with a third drain hole, and a rotating component is installed on the third drain hole. The rotating component can rotate relative to the third drain hole to change the water passage area of ​​the third drain hole.

[0019] According to some embodiments of this utility model, the first water passage includes a first inlet channel and a first outlet channel, the third water passage is connected to the first outlet channel, a first water inlet is defined between the first inlet channel and the first outlet channel, the control valve includes a second valve cover, a third valve disc, a second rocker arm and a second pressure pad, the third valve disc is movably mounted on the second valve cover, a second pressure chamber is defined between the third valve disc and the second valve cover, the second valve cover has a second pressure relief hole communicating with the second pressure chamber, the second rocker arm is elastically deformably connected between the second valve cover and the first float, the second pressure pad is mounted on the second rocker arm, when the first float rises and falls, it drives the second rocker arm to move so that the second pressure pad blocks or leaves the second pressure relief hole, the third valve disc can elastically move relative to the first water inlet to control the opening and closing of the first water inlet.

[0020] According to some embodiments of the present invention, the inlet side of the fourth water passage and the inlet side of the first water passage are connected by a sixth water passage. The sixth water passage includes a sixth inlet channel and a sixth outlet channel. The sixth inlet channel is connected to the first water passage located upstream of the control valve, and the sixth outlet channel is connected to the inlet side of the fourth water passage. A sixth water inlet is defined between the sixth inlet channel and the sixth outlet channel, and the manual valve controls the opening and closing of the sixth water inlet.

[0021] According to some embodiments of this utility model, the manual valve includes a pull rope, a valve seat, a third rocker arm, a fourth valve disc, a piston, and a second elastic element. The third rocker arm is rotatably mounted on the valve seat, and the pull rope is connected to the third rocker arm. The fourth valve disc is elastically deformable and mounted on the valve seat to control the opening and closing of the sixth water outlet. The valve seat has a valve cavity, and the piston is movably mounted in the valve cavity. The fourth valve disc and the valve seat define a third pressure cavity, which is connected to the valve cavity. The second elastic element applies an elastic force to the piston to move it toward the third pressure cavity. When the third rocker arm moves, it can drive the piston to move away from the third pressure cavity.

[0022] According to some embodiments of the present invention, the Venturi pipe includes an inlet section, a constriction section, a throat section, a flared section, and a suction section. The inlet section, the constriction section, the throat section, and the flared section are connected in sequence. The inner diameter of the constriction section gradually decreases from the inlet section towards the throat section. The inner diameter of the throat section is smaller than the inner diameter of the inlet section. The inner diameter of the flared section gradually increases in the direction away from the throat section. The suction section is connected to the flared section radially.

[0023] According to a second aspect of the present invention, a toilet includes a toilet body, a water tank, and a flushing system. The flushing system is installed on the water tank. The outlet side of the fourth water channel is connected to the brush ring water channel of the toilet body, and the outlet side of the fifth water channel is connected to the bottom spray water channel of the toilet body.

[0024] The toilet according to the embodiments of this utility model has at least the following advantages: it adopts manual mechanical flushing operation in the event of a power outage, does not require a storage battery or other backup power source, has good safety, and is convenient to use.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 This is a structural diagram of a toilet.

[0028] Figure 2 This is a partial structural diagram of a toilet.

[0029] Figure 3 yes Figure 2 Partial structural diagram;

[0030] Figure 4 This is a schematic diagram of the flushing system;

[0031] Figure 5 yes Figure 4 Sectional view along direction A;

[0032] Figure 6 yes Figure 4 Sectional view along direction B;

[0033] Figure 7 This is a structural diagram of the switching component;

[0034] Figure 8 yes Figure 7 A sectional view;

[0035] Figure 9 yes Figure 8 Another usage status diagram;

[0036] Figure 10 These are structural diagrams of the first and second floating mechanisms;

[0037] Figure 11 yes Figure 10 A structural decomposition diagram;

[0038] Figure 12 yes Figure 10 Partial structural diagram;

[0039] Figure 13 This is a schematic diagram of a Venturi tube.

[0040] Reference numerals: Water inlet assembly 100; First water passage 110; First inlet channel 111; First outlet channel 112; First water outlet 113; Second water passage 120; Third water passage 130; Sixth water passage 140; Sixth inlet channel 141; Sixth outlet channel 142; Sixth water outlet 143; Control valve 200; Second valve cover 210; Second pressure relief hole 211; Third valve disc 220; Second rocker arm 230; Second pressure pad 240; Second pressure chamber 25 0; Switching component 300; Fourth water channel 310; Fourth inlet water channel 311; Fourth outlet water channel 312; Fourth inlet water inlet 313; Fourth outlet water inlet 314; Fifth water channel 320; Fifth inlet water channel 321; Fifth outlet water channel 322; Fifth inlet water inlet 323; Fifth outlet water inlet 324; Resilient valve 330; First valve disc 331; First elastic element 332; First closed side 333; Second closed side 334; Fourth water inlet 340; Cut Replacement valve 400; First valve cover 410; First pressure relief hole 411; Second valve disc 420; First rocker arm 430; First pressure pad 440; First pressure chamber 450; Manual valve 500; Pull rope 510; Valve seat 520; Valve chamber 521; Third rocker arm 530; Fourth valve disc 540; Piston 550; Second elastic element 560; Third pressure chamber 570; Water pump 600; First floating mechanism 700; First container 710; First drain hole 711; First float 720; third float 730; second floating mechanism 800; second container 810; second drain hole 811; third drain hole 812; second float 820; fourth float 830; rotating component 840; toilet body 900; toilet chamber 901; drain outlet 902; water tank 910; brush ring water channel 920; bottom spray water channel 930; venturi pipe 940; inlet section 941; constriction section 942; throat section 943; flare section 944; suction section 945. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0042] This utility model relates to a flushing system, including a water inlet assembly 100, a switching assembly 300, a control valve 200, a water pump 600, a manual valve 500, a first floating mechanism 700, a second floating mechanism 800, and a Venturi pipe 940.

[0043] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10 As shown, the water inlet assembly 100 includes a first water channel 110, a second water channel 120, and a third water channel 130. The first water channel 110, the second water channel 120, and the third water channel 130 can all be constructed using housings or pipes, etc. In this embodiment, as... Figure 5As shown, the first water passage 110 is composed of multiple pipes connected in a T-shape. The inlet of the first water passage 110 is located at the bottom, and external water flows from bottom to top after entering the first water passage 110. The third water passage 130 is composed of pipes sleeved outside the first water passage 110, and the outlet of the first water passage 110 is connected to the inlet of the third water passage 130. The lower part of the third water passage 130 has an outlet, and the upper part of the third water passage 130 can communicate with the upper part of the first water passage 110. The second water passage 120 is connected to the third water passage 130. The switching assembly 300 includes a fourth water passage 310, a fifth water passage 320, a switching valve 400, and a resilient valve 330. The switching assembly 300 can be composed of multiple housings or pipes, etc., and the interior of the housings or pipes forms the fourth water passage 310 and the fifth water passage 320. Depending on the water flow direction, one end of the fourth water passage 310 and the inlet side of the fifth water passage 320 can be interconnected. A switching valve 400 is installed between the outlet side of the fourth water passage 310 and the inlet side of the fifth water passage 320. The switching valve 400 controls whether the inlet side of the fourth water passage 310 and the inlet side of the fifth water passage 320 are connected. Before the installation of the elastic valve 330, the outlet sides of the fourth water passage 310 and the fifth water passage 320 are interconnected. After the elastic valve 330 is installed between them, the outlet sides of the fourth water passage 310 and the fifth water passage 320 are no longer interconnected. One side of the elastic valve 330 is subjected to water pressure from the outlet side of the fourth water passage 310, and the other side is subjected to water pressure from the outlet side of the fifth water passage 320. The elastic valve 330 moves between the outlet sides of the fourth water passage 310 and the outlet side of the fifth water passage 320 based on the water pressure difference and its own elasticity. Under the action of its own elasticity, the elastic valve 330 tends to move towards blocking the outlet side of the fourth water passage 310. When there is no water at the outlet sides of both the fourth water passage 310 and the fifth water passage 320, the elastic valve 330 moves to and remains in the position of blocking the outlet side of the fourth water passage 310. The first water passage 110 can be connected to the inlet side of the fourth water passage 310 via a pipe. The control valve 200 is installed on the inlet assembly 100 and is used to control the opening and closing of the first water passage 110. The outlet end of the water pump 600 is connected to the inlet side of the fourth water passage 310 via a water pipe. A manual valve 500 is installed on the water inlet assembly 100. The manual valve 500 is manually operated to control the opening and closing of the first water passage 110 and the fourth water passage 310. The first floating mechanism 700 includes a first container 710 and a first float 720. The first container 710 can be a box-shaped, cylindrical, or other water-holding container structure. The first container 710 can communicate with the outside. The first float 720 can be a float or other structure, placed in the first container 710, and rises and falls with the water level in the first container 710.The first float 720 is connected to the control valve 200, and the control valve 200 is opened or closed by changes in the height of the first float 720. The second floating mechanism 800 includes a second container 810 and a second float 820. The second container 810 can be a box-shaped, cylindrical, or other water-holding container structure. The second container 810 can communicate with the outside. The second float 820 can be a float or other structure, placed in the second container 810, and rises and falls with the water level in the second container 810. The second float 820 is connected to the switching valve 400, and the switching valve 400 is opened or closed by changes in the height of the second float 820. The second water passage 120 can be a water pipe, connecting the second container 810 and the third water passage 130. The Venturi pipe 940 is connected to the outlet side of the fourth water passage 310 via a pipe. Figure 13 As shown, the Venturi conduit 940 includes an inlet section 941, a constriction section 942, a throat section 943, a flared section 944, and a suction section 945. The inlet section 941, constriction section 942, throat section 943, and flared section 944 are connected sequentially. The inner diameter of the constriction section 942 gradually decreases from the inlet section 941 towards the throat section 943. The inner diameter of the throat section 943 is smaller than the inner diameter of the inlet section 941. The inner diameter of the flared section 944 gradually increases in the direction away from the throat section 943. The suction section 945 is radially connected to the flared section 944, and the Venturi conduit 940 directly draws external liquid into the flared section 944 through the suction section 945.

[0044] In practical use, flushing systems are primarily applied to toilets, but can also be used in other sanitary ware and other products that require flushing. For example... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model's flushing system is applied to a toilet, which also includes a toilet body 900 and a water tank 910. The toilet body 900 has a brush ring water passage 920 and a bottom spray water passage 930. The brush ring water passage 920 flushes the toilet chamber 901 of the toilet body 900 from top to bottom, while the bottom spray water passage 930 flushes the drain outlet 902 at the bottom of the toilet body 900. The flushing system is installed on the water tank 910. The water pump 600 can be located outside or inside the water tank 910, and the other components of the flushing system are located in the water tank 910. The Venturi pipe 940 is connected to the brush ring water passage 920 of the toilet body 900 via a water pipe, and the outlet side of the fifth water passage 320 is connected to the bottom spray water passage 930 of the toilet body 900 via a water pipe. The inlet of the water pump 600 is connected to the water tank 910, and the venturi pipe 940 is located at the bottom of the water tank 910. The following explanation will illustrate the working principle of the flushing system by applying it to a toilet.

[0045] The flushing system mainly has two working modes: one is the power-on mode and the other is the power-off mode.

[0046] Initially, water tank 910 is filled to the working water level. At this time, the first container 710 and the second container 810 are immersed in the water in tank 910, and the first float 720 and the second float 820 are floating under the action of buoyancy. Control valve 200 remains in the closed position when the first float 720 is floating, that is, the first water passage 110 is closed. Switching valve 400 remains in the closed position when the second float 820 is floating, and switching valve 400 shuts off the water inlet side of the fourth water passage 310 and the water inlet side of the fifth water passage 320, preventing them from connecting. Manual valves 500 are all in the closed position, that is, water cannot flow between the first water passage 110 and the fourth water passage 310. Water pump 600 is also in the closed position. The water inlet of the first water passage 110 is connected to municipal water (tap water pipe).

[0047] In power-on mode, the external power supply system provides power to the water pump 600. When flushing the toilet body 900 is required, the water pump 600 is turned on. The water pump 600 draws water from the tank 910 and pumps it to the inlet side of the fourth water passage 310, where it flows. Since the switching valve 400 is closed at this time, water will not flow into the fifth water passage 320. Figure 9 As shown, under the water pressure of the fourth water passage 310, the elastic valve 330 moves, opening the outlet side of the fourth water passage 310, and then moves to the outlet side of the fifth water passage 320, blocking the outlet side of the fifth water passage 320. Water from the outlet side of the fourth water passage 310 is discharged through the Venturi pipe 940 to the brush ring water passage 920 of the toilet body 900, and the water flow flushes the inner cavity of the toilet body 900. When the water flows through the Venturi pipe 940, a Venturi effect is generated. The Venturi pipe 940 draws water from the water tank 910 into the Venturi pipe 940 through the suction section 945 and delivers it to the brush ring water passage 920. As water is used for brushing, the water level in water tank 910 gradually decreases. Water from the second container 810 is discharged into water tank 910, causing the water level in the second container 810 to gradually decrease as well. The second float 820 also descends accordingly. After the second float 820 descends, it actuates the switching valve 400 to the open position. The water pump 600 continues to pump water. Figure 8As shown, after the switching valve 400 opens, the inlet side of the fourth water passage 310 and the inlet side of the fifth water passage 320 are connected. Water flows from the fourth water passage 310 into the fifth water passage 320 and flows towards the outlet side of the fifth water passage 320. Under the action of water pressure on the outlet side of the fifth water passage 320 and its own elastic force, the elastic valve 330 moves, blocking the outlet side of the fourth water passage 310 and opening the outlet side of the fifth water passage 320. Water flows from the outlet end of the outlet side of the fifth water passage 320 into the bottom spray water passage 930 of the toilet body 900, flushing the bottom drain outlet 902 of the toilet body 900. At this time, the brush ring water passage 920 stops flushing. At the same time as the water level in the second container 810 drops, the water in the first container 710 is discharged into the water tank 910, also lowering the water level, and the first float 720 drops. The first float 720 descends, causing the control valve 200 to switch to the open state. At this time, water flows through the first water passage 110, supplying tap water to the third water passage 130. Water is then supplied to the water tank 910 through the third water passage 130, and simultaneously, water is supplied to the second container 810 through the third water passage 130 and the second water passage 120. The rate at which water is supplied to the second container 810 is greater than the rate at which water is drained from the second container 810 to the water tank 910, causing the water level in the second container 810 to rise. The second float 820 then rises, causing the switching valve 400 to switch to the closed state, cutting off the connection between the fourth water passage 310 and the fifth water passage 320, stopping the water supply to the bottom spray water passage 930, and stopping the bottom spray flushing. At this time, water flows to the outlet side of the fourth water passage 310. Under the water pressure of the fourth water passage 310 (there is no water pressure in the fifth water passage 320), the elastic valve 330 moves again to open the outlet side of the fourth water passage 310 and block the outlet side of the fifth water passage 320. Water is supplied to the brush ring water passage 920 to perform a second brush ring flush on the toilet chamber 901, and at the same time, water seal is replenished to the bottom drain outlet 902 of the toilet chamber 901. The working time of the water pump 600 is set. After the water seal is replenished within the preset time, the water pump 600 stops working and stops supplying water to the brush ring water passage 920. Water is replenished to the water tank 910 through the first water passage 110 and the third water passage 130 until the water in the water tank 910 is replenished to the working water level. The first float 720 rises and drives the control valve 200 to close, shutting off the water supply to the first water passage 110. At this time, the flushing system enters the standby state. The above-described working method enables the flushing system to complete the workflow of brushing ring, bottom spray flushing, secondary brushing ring, and water seal replenishment in the power-on mode.

[0048] In power outage mode, meaning the external power supply system cannot power the water pump 600, the water pump 600 cannot start pumping water. The flushing system is in the initial state described above. When flushing the toilet is needed, the user manually opens the manual valve 500. For example... Figure 6As shown, after the manual valve 500 is opened, the first water passage 110 and the fourth water passage 310 are connected. Tap water is supplied to the fourth water passage 310 through the first water passage 110, and the water flows into the inlet side of the fourth water passage 310. At this time, the switching valve 400 is in the closed state, and the water will not flow into the fifth water passage 320. Figure 9 As shown, the elastic valve 330 moves under the water pressure of the fourth water passage 310, opening the outlet side of the fourth water passage 310 and moving to the outlet side of the fifth water passage 320 to block the outlet side of the fifth water passage 320. Water from the outlet side of the fourth water passage 310 is discharged through the Venturi pipe 940 to the brush ring water passage 920 of the toilet body 900 for brush ring flushing. When the water passes through the Venturi pipe 940, a Venturi effect is generated, and water in the water tank 910 is drawn into the Venturi pipe 940 through the suction section 945. As the brush ring uses water, the water level in the water tank 910 gradually decreases, and water in the second container 810 is discharged into the water tank 910, causing the water level in the second container 810 to gradually decrease, and the second float 820 also decreases accordingly. After the second float 820 decreases, it drives the switching valve 400 to switch to the open state. The manual valve 500 remains open, as... Figure 8As shown, after the switching valve 400 opens, the inlet side of the fourth water passage 310 and the inlet side of the fifth water passage 320 are connected. Water flows from the fourth water passage 310 into the fifth water passage 320 and flows towards the outlet side of the fifth water passage 320. Under the action of water pressure on the outlet side of the fifth water passage 320 and its own elastic force, the elastic valve 330 moves to block the outlet side of the fourth water passage 310, and the outlet side of the fifth water passage 320 opens. Water flows from the outlet end of the outlet side of the fifth water passage 320 into the bottom spray water passage 930 of the toilet body 900, flushing the bottom drain outlet 902 of the toilet body 900. At this time, the brush ring water passage 920 stops flushing. At the same time as the water level in the second container 810 drops, the water in the first container 710 is discharged into the water tank 910, which also lowers the water level, and the first float 720 drops. The drop of the first float 720 drives the control valve 200 to switch to the open state. At this time, water is flowing through the first water passage 110, and tap water is supplied through the third water passage 130. Water is replenished to the water tank 910 through the third water passage 130, and water is simultaneously replenished to the second container 810 through the third water passage 130 and the second water passage 120. The rate at which water is replenished to the second container 810 is greater than the rate at which water is drained from the second container 810 to the water tank 910, causing the water level in the second container 810 to rise. The second float 820 rises, causing the switching valve 400 to switch to the closed state, cutting off the connection between the fourth water passage 310 and the fifth water passage 320, stopping the water supply to the bottom spray water passage 930, and stopping the bottom spray flushing. At this time, water flows to the outlet side of the fourth water passage 310 again. Under the water pressure of the fourth water passage 310 (there is no water pressure in the fifth water passage 320), the elastic valve 330 moves again to open the outlet side of the fourth water passage 310 and block the outlet side of the fifth water passage 320. Water is supplied to the brush ring water passage 920 to perform a second brush ring flush on the toilet chamber 901, while simultaneously replenishing the water seal at the bottom drain outlet 902 of the toilet chamber 901. After the water seal replenishment is complete, the manual valve 500 is manually closed, stopping the first water passage 110 from supplying water to the fourth water passage 310, thus stopping the water supply to the brush ring water passage 920. Water is then replenished to the water tank 910 through the first water passage 110 and the third water passage 130 until the water in the water tank 910 reaches the working water level. At this point, the first float 720 rises, causing the control valve 200 to close, shutting off the water supply to the first water passage 110. The flushing system then enters standby mode. This operating method allows the flushing system to complete the brush ring, bottom spray flushing, second brush ring flushing, and water seal replenishment processes even in power-off mode.

[0049] In one embodiment, such as Figure 8 and Figure 9As shown, the fourth water passage 310 includes a fourth inlet channel 311 and a fourth outlet channel 312. The fourth inlet channel 311 serves as the inlet side of the fourth water passage 310, and the fourth outlet channel 312 serves as the outlet side. The fourth outlet channel 312 can be arranged around the downstream section of the fourth inlet channel 311. Along the water flow direction, the downstream end of the fourth inlet channel 311 is the fourth inlet outlet 313, and the upstream end of the fourth outlet channel 312 is the fourth outlet outlet 314. The fourth outlet outlet 314 is arranged around the fourth inlet outlet 313, and the fourth outlet outlet 314 and the fourth inlet outlet 313 can be flush. The first water passage 110 can be connected to the fourth inlet channel 311 via a pipe. The outlet end of the water pump 600 is connected to the fourth inlet channel 311 via a water pipe. The fifth water passage 320 includes a fifth inlet channel 321 and a fifth outlet channel 322. The fifth water outlet channel 322 can be arranged around the downstream section of the fifth water inlet channel 321. The fifth water inlet channel 321 serves as the water inlet side (upstream section) of the fifth water passage 320, and the fifth water outlet channel 322 serves as the water outlet side (downstream section) of the fifth water passage 320. The fifth water outlet channel 322 is connected to the bottom spray water passage 930 via a water pipe. The downstream end of the fifth water inlet channel 321 is the fifth water inlet 323, and the upstream end of the fifth water outlet channel 322 is the fifth water outlet 324. The fifth water inlet 323 is arranged around the fifth water outlet 324, and the fifth water inlet 323 and the fifth water outlet 324 can be arranged to be offset along the axial direction. The fourth water outlet 314 is positioned opposite to the fifth water inlet 323, and the fourth water outlet 314 can be connected to the fifth water inlet 323. The fourth water inlet 313 and the fifth water outlet 324 are positioned opposite each other, with a certain gap between them. A resilient valve 330 is movably installed between the fourth water outlet 314 and the fifth water inlet 323. The inner diameters of the fourth water outlet 314, the fifth water inlet 323, and the outer diameter of the resilient valve 330 can be set to be the same. A switching valve 400 is installed between the fourth water inlet channel 311 and the fifth water inlet channel 321. Specifically, the resilient valve 330 includes a first valve disc 331 and a first elastic element 332. The two sides of the first valve disc 331 are a first closing side 333 and a second closing side 334, respectively. The first valve disc 331 is movably installed between the fourth water outlet 314 and the fifth water inlet 323. The first closing side 333 faces the fourth water inlet 313, and the second closing side 334 faces the fifth water outlet 324. The elastic element can be a spring or other elastic component. The first elastic element 332 may have one end abutting against the second closed side 334 and the other end abutting against the fifth water inlet channel 321. The first elastic element 332 applies an elastic force to the first valve disc 331, causing the first valve disc 331 to move towards the fourth water inlet 313.Under the elastic force of the first elastic member 332, the first valve disc 331 has its first sealing side 333 abutting against the fourth water inlet 313, sealing the fourth water inlet 313, while the second sealing side 334 moves away from the fifth water outlet 324. The position of the first valve disc 331 at this time is defined as the first position. When the first valve disc 331 moves to the point where the first sealing side 333 moves away from the fourth water inlet 313, and the second sealing side 334 abuts against and seals the fifth water outlet 324, the position of the first valve disc 331 at this time is defined as the second position. In the above-mentioned energized or de-energized mode, when water flows into the fourth water inlet channel 311, the switching valve 400 is in the closed state, and the fifth water channel 320 is dry. Water pressure in the fourth inlet channel 311 acts on the first closed side 333, overcoming the elastic force of the first elastic element 332 and pushing the first valve disc 331 from the first position to the second position. Water flows from the fourth inlet channel 311 through the fourth inlet port 313 and the fourth outlet port 314 into the fourth outlet channel 312, and is then delivered to the brush ring water circuit 920. When the switching valve 400 is opened, the fourth inlet channel 311 connects with the fifth inlet channel 321. Water flows from the fourth inlet channel 311 into the fifth inlet channel 321. The water pressure in the fifth inlet channel 321 acts on the second closed side 334, and, in conjunction with the elastic force of the first elastic element 332, pushes the first valve disc 331 from the second position to the first position. Water in the fifth inlet channel 321 flows through the fifth inlet port 323 and the fifth outlet port 324 into the fifth outlet channel 322, and is then delivered to the bottom spray water circuit 930. When the switching valve 400 closes again, the fourth water inlet channel 311 and the fifth water inlet channel 321 are shut off, and the first valve disc 331 moves back to the second position under the water pressure of the fourth water inlet channel 311. After the water supply to the fourth water inlet channel 311 stops, the first valve disc 331 returns to the first position under the elastic force of the first elastic element 332. This achieves the state switching between the fourth water channel 310 and the fifth water channel 320, thereby realizing the switching between brush ring and bottom spray flushing.

[0050] Based on the above embodiments, a fourth water inlet 340 is defined between the fourth water inlet channel 311 and the fifth water inlet channel 321. The fourth water inlet 340 is formed on one end of the fourth water inlet channel 311, and the water inlet section 941 of the fifth water inlet channel 321 can be arranged around one end of the fourth water inlet 340. The water pump is connected to the fourth water inlet channel 311 through a water pipe. The switching valve 400 includes a first valve cover 410, a second valve disc 420, a first rocker arm 430, and a first pressure pad 440. The second valve disc 420 is elastically deformable and mounted on the first valve cover 410. The second valve disc 420 can be configured as an elastic valve 330 membrane structure capable of elastic deformation. A first pressure chamber 450 is defined between the second valve disc 420 and the first valve cover 410. A first pressure relief hole 411 is provided on the first valve cover 410, and the first pressure relief hole 411 communicates with the first pressure chamber 450. One end of the first rocker arm 430 is oscillatingly connected to the first valve cover 410 via a pivot, and the other end is oscillatingly connected to the second float 820 via a pivot. A first pressure pad 440 is mounted on the first rocker arm 430; the first pressure pad 440 can be a rubber pad, silicone pad, etc. When the second float 820 rises or falls, it drives the first rocker arm 430 to move, causing the first rocker arm 430 to oscillate relative to the second float 820. The first rocker arm 430 drives the first pressure pad 440 to either block or move away from the first pressure relief hole 411. When the second float 820 rises, the first rocker arm 430 drives the first pressure pad 440 to block the first pressure relief hole 411. At this time, the first pressure chamber 450 is in a closed, pressurized state. Simultaneously, the second valve disc 420, through its own elasticity, abuts against the fourth water outlet 340, sealing it. The water pressure in the fourth water inlet channel 311 acts on the side of the second valve disc 420 away from the first pressure chamber 450. Due to the pressurization effect of the first pressure chamber 450, the second valve disc 420 can still maintain its seal on the fourth water outlet 340. When the second float 820 descends, the first rocker arm 430 swings relative to the first valve cover 410. The first rocker arm 430 drives the first pressure pad 440 away from the first pressure relief hole 411, releasing pressure from the first pressure chamber 450. The water pressure in the fourth water inlet channel 311 acts on the second valve disc 420, causing it to elastically deform and move away from the fourth water outlet 340. The fourth water outlet 340 opens, and the fourth water inlet channel 311 and the fifth water inlet channel 321 are connected through the fourth water outlet 340. When the fourth water inlet channel 311 has no water pressure or the water pressure decreases, the second valve disc 420 elastically resets and abuts against the fourth water outlet 340 again, blocking the fourth water outlet 340.

[0051] Based on the above embodiments, such as Figure 4 , Figure 10 , Figure 11 and Figure 12As shown, the first container 710 and the second container 810 can be formed by a single molded box separated by a partition. Alternatively, the first container 710 and the second container 810 can be two independent components. The bottom of the first container 710 has a first drain hole 711, through which water in the first container 710 can flow into the water tank 910. A third float 730 is installed on the first drain hole 711. The shape of the third float 730 is adapted to the first drain hole 711, and the third float 730 can rise and fall within the first drain hole 711. The third float 730 can be configured with open side walls. The bottom of the second container 810 has a second drain hole 811, through which water in the second container 810 can flow into the water tank 910. A fourth float 830 is installed on the second drain hole 811. The shape of the fourth float 830 is adapted to the second drain hole 811, and the fourth float 830 can rise and fall within the second drain hole 811. The fourth float 830 can be configured with open side walls. Initially, the water level in the water tank 910 overflows the first container 710 and the second container 810. At this time, the third float 730 and the fourth float 830 rise under the buoyancy of the water in the water tank 910. The third float 730 rises until it blocks the first drain hole 711, and the fourth float 830 rises until it blocks the second drain hole 811. When the water level in tank 910 drops below the bottom of the first container 710 and the second container 810, the third float 730 descends relative to the first drain hole 711 as the water level in tank 910 drops, opening the first drain hole 711. Water in the first container 710 can then be discharged into tank 910 through the perforated side wall of the third float 730. Similarly, the fourth float 830 descends relative to the second drain hole 811 as the water level in tank 910 drops, opening the second drain hole 811. Water in the second container 810 can then be discharged into tank 910 through the perforated side wall of the fourth float 830. After the water in the first container 710 and the second container 810 is discharged into tank 910, the first float 720 and the second float 820 descend, respectively actuating the control valve 200 and the switching valve 400 to switch states. When the second water passage 120 replenishes water to the second container 810, the replenishment rate is greater than the drainage rate from the second container 810 to the water tank 910. This allows the second float 820 to rise and switch the state of the switching valve 400 before the water level in the water tank 910 is higher than the second drain hole 811. After the water in the water tank 910 is replenished, the third float 730 and the fourth float 830, under the action of buoyancy, re-seal the first drain hole 711 and the second drain hole 811.

[0052] Furthermore, such as Figure 12As shown, the bottom of the second container 810 is also provided with a third drain hole 812. A rotating component 840 is installed on the third drain hole 812. The rotating component 840 can be a plate or the like. The rotating component 840 can rotate relative to the third drain hole 812. When the rotating component 840 rotates, it can change the relative coverage surface with the third drain hole 812, thereby changing the water passage area of ​​the third drain hole 812. By controlling the water passage area of ​​the third drain hole 812 through the rotating component 840, it is possible to control the difference between the water replenishment speed of the second water channel 120 to the second container 810 and the total drainage speed of the second drain hole 811, thereby controlling the rinsing time of the bottom spray water channel 930.

[0053] In one embodiment, such as Figure 5As shown, the first water passage 110 includes a first inlet channel 111 and a first outlet channel 112. The first inlet channel 111 can be formed by a T-shaped pipe. The first outlet channel 112 is located above the first inlet channel 111. A pipe can be fitted over the upper part of the first inlet channel 111, with a gap between them, forming the first outlet channel 112. The bottom opening of the first inlet channel 111 serves as the water inlet end, connecting to an external tap water pipe. The third water passage 130 communicates with the first outlet channel 112. It can be formed by fitting a straight pipe under the first inlet channel 111, with a gap between the straight pipe and the outer wall of the first inlet channel 111, creating the third water passage 130. The upper end of the third water passage 130 communicates with the lower part of the first outlet channel 112. The lower opening of the third water passage 130 allows it to communicate with the water tank 910. A first water inlet 113 is defined between the first inlet channel 111 and the first outlet channel 112. The first water inlet 113 can be one end of the upper T-shaped pipe of the first inlet channel 111. The structure of the control valve 200 can be set to be similar to that of the switching valve 400 described above. The control valve 200 includes a second valve cover 210, a third valve disc 220, a second rocker arm 230, and a second pressure pad 240. The third valve disc 220 is elastically deformable and mounted on the second valve cover 210. The third valve disc 220 can be made of a rubber valve diaphragm that is elastically deformable. A second pressure chamber 250 is defined between the third valve disc 220 and the second valve cover 210. A second pressure relief hole 211 is provided on the second valve cover 210, and the second pressure relief hole 211 communicates with the second pressure chamber 250. One end of the second rocker arm 230 can be rotatably mounted on the first float 720 via a pivot, and the other end can be rotatably mounted on the second valve cover 210 via a pivot. The second pressure pad 240 is mounted on the second rocker arm 230. The second pressure pad 240 can be a rubber pad or other components. When the first float 720 rises, it drives the second rocker arm 230 to move. The second rocker arm 230 drives the second pressure pad 240 to abut against the second pressure relief hole 211, sealing the second pressure relief hole 211. At this time, the second pressure chamber 250 is a closed cavity, forming a pressure buildup. The third valve disc 220 abuts against the first water outlet 113, sealing the first water outlet 113. Water in the first water inlet channel 111 cannot be supplied to the first water outlet channel 112. When the first float 720 descends, the second rocker arm 230 causes the second pressure pad 240 to move away from the second pressure relief hole 211, the second pressure chamber 250 is depressurized, and the third valve disc 220 undergoes elastic deformation under the water pressure of the first water inlet channel 111, moving away from the first water outlet 113. Water from the first inlet channel 111 is transported through the first outlet 113 to the first outlet channel 112, and then transported to the third water channel 130 to replenish water to the water tank 910.

[0054] In one embodiment, such as Figure 4 , Figure 5 and Figure 6As shown, the first water passage 110 and the fourth water passage 310 are connected by a sixth water passage 140. The sixth water passage 140 includes a sixth inlet channel 141 and a sixth outlet channel 142. The sixth inlet channel 141 is connected to the first water passage 110 located upstream of the control valve 200, that is, the sixth inlet channel 141 is connected to the first inlet channel 111. Water in the first inlet channel 111 can be directly delivered to the sixth inlet channel 141. The sixth outlet channel 142 is connected to the fourth inlet channel 311 of the fourth water passage 310. A sixth water passage 143 is defined between the sixth inlet channel 141 and the sixth outlet channel 142. A manual valve 500 controls the opening and closing of the sixth water passage 143. The manual valve 500 can be a mechanical valve such as an angle valve or a ball valve that is manually controlled. When the sixth water passage 143 is blocked by the manual valve 500, water cannot be delivered from the sixth inlet channel 141 to the sixth outlet channel 142. When the manual valve 500 is opened, the sixth water outlet 143 is opened, and water is transported to the fourth water channel 310 along the first water inlet channel 111, the sixth water inlet channel 141, and the sixth water outlet channel 142.

[0055] Specifically, such as Figure 4 , Figure 5 and Figure 6As shown, the manual valve 500 includes a pull rope 510, a valve seat 520, a third rocker arm 530, a fourth valve disc 540, a piston 550, and a second elastic element 560. The third rocker arm 530 is rotatably mounted on the valve seat 520 via a pivot. The pull rope 510 is connected to the third rocker arm 530. The pull rope 510 can be a steel wire rope, etc. The fourth valve disc 540 is elastically deformable and mounted on the valve seat 520. The fourth valve disc 540 can be an elastically deformable valve diaphragm structure. In its natural state, the fourth valve disc 540 blocks the sixth water outlet 143. A third pressure chamber 570 is defined between the fourth valve disc 540 and the valve seat 520, and a valve cavity 521 communicating with the third pressure chamber 570 is provided on the valve seat 520. The piston 550 is movably mounted in the valve cavity 521, and the circumferential sidewall of the piston 550 abuts against the valve cavity 521. A sealed space is formed between the valve chamber 521 and the third pressure chamber 570. The piston 550 can move relative to the valve chamber 521. The second elastic member 560 can be an elastic component such as a spring. The second elastic member 560 applies an elastic force to the piston 550, causing it to move towards the third pressure chamber 570. When the piston 550 moves towards the third pressure chamber 570, the volume of the space formed by the third pressure chamber 570 and the valve chamber 521 decreases, causing the air pressure in the third pressure chamber 570 to increase, pushing the fourth valve disc 540 to abut against and seal the sixth water outlet 143. When the pull rope 510 is pulled, the pull rope 510 drives the piston 550 to move away from the third pressure chamber 570 via the third rocker arm 530. The volume of the space formed by the third pressure chamber 570 and the valve chamber 521 increases, and the air pressure inside pulls the fourth valve disc 540 to move away from the sixth water outlet 143. The sixth water outlet 143 opens, and water is transported from the first inlet channel 111, the sixth inlet channel 141, the sixth water outlet 143, and the sixth outlet channel 142 to the fourth water passage 310. After the pull rope 510 is released, the piston 550 returns to its original position under the elastic action of the second elastic element 560, and the fourth valve disc 540 elastically returns to its original position, blocking the sixth water outlet 143.

[0056] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0057] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this utility model, unless otherwise explicitly 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, references to terms such as "some specific embodiments" 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 the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A flushing system, characterized in that, include: The water inlet assembly (100) includes a first water passage (110), a second water passage (120) and a third water passage (130), wherein the first water passage (110) is connected to the third water passage (130) and a control valve (200) is provided between them, and the second water passage (120) is connected to the third water passage (130); The switching assembly (300) includes a fourth water passage (310), a fifth water passage (320), a switching valve (400), and a resilient valve (330). The switching valve (400) is installed between one end of the fourth water passage (310) and the inlet side of the fifth water passage (320). The resilient valve (330) is movably installed between the outlet side of the fourth water passage (310) and the outlet side of the fifth water passage (320). The resilient valve (330) tends to move elastically in the direction of blocking the outlet side of the fourth water passage (310). The first water passage (110) is connected to the inlet side of the fourth water passage (310), and a manual valve (500) is provided between them. A water pump (600) has its outlet end connected to the inlet side of the fourth water passage (310); The first floating mechanism (700) includes a first container (710) and a first float (720) floatably placed in the first container (710), the first float (720) being connected to the control valve (200) such that the first float (720) controls the opening and closing of the control valve (200) when it floats; The second floating mechanism (800) includes a second container (810) and a second float (820) floatably placed in the second container (810). The second float (820) is connected to the switching valve (400) so that the second float (820) controls the opening and closing of the switching valve (400) when it floats. The second water passage (120) is connected between the second container (810) and the third water passage (130). The Venturi pipe (940) is capable of drawing in external liquid when water flows through it, and the Venturi pipe (940) is connected to the outlet side of the fourth water passage (310).

2. The flushing system according to claim 1, characterized in that: The fourth waterway (310) includes a fourth inlet channel (311) and a fourth outlet channel (312). The water pump (600) is connected to the fourth inlet channel (311). The downstream end of the fourth inlet channel (311) is the fourth inlet port (313), and the upstream end of the fourth outlet channel (312) is the fourth outlet port (314). The fourth outlet port (314) is arranged around the fourth inlet port (313). The fifth waterway (320) includes a fifth inlet channel (321) and a fifth outlet channel (322). The downstream end of the fifth inlet channel (321) is the fifth inlet port (323), and the fifth outlet channel (312) is the fifth outlet port (323). The upstream end of 322) is the fifth water outlet (324), the fifth water inlet (323) is arranged around the fifth water outlet (324), the fourth water inlet (313) is opposite to the fifth water outlet (324), the fourth water outlet (314) is opposite to the fifth water inlet (323), the elastic valve (330) is movably installed between the fourth water outlet (314) and the fifth water inlet (323) to block the fourth water inlet (313) or the fifth water outlet (324), and the elastic valve (330) tends to move elastically in the direction of blocking the fourth water inlet (313).

3. The flushing system according to claim 2, characterized in that: The elastic valve (330) includes a first valve disc (331) and a first elastic element (332). The first valve disc (331) has a first closed side (333) and a second closed side (334). The first valve disc (331) is movably installed between the fourth water outlet (314) and the fifth water inlet (323). The first closed side (333) faces the fourth water inlet (313), and the second closed side (334) faces the fifth water outlet (324). The first elastic element (332) applies an elastic force to the first valve disc (331) to move it toward the fourth water inlet (313). The first valve disc (331) can move to a first position where the first closed side (333) blocks the fourth water inlet (313) and to a second position where the second closed side (334) blocks the fifth water outlet (324).

4. The flushing system according to claim 2, characterized in that: A fourth water inlet (340) is defined between the fourth water inlet channel (311) and the fifth water inlet channel (321). The switching valve (400) includes a first valve cover (410), a second valve disc (420), a first rocker arm (430), and a first pressure pad (440). The second valve disc (420) is elastically deformably mounted on the first valve cover (410). A first pressure chamber (450) is defined between the second valve disc (420) and the first valve cover (410). A first vent is provided on the first valve cover (410) that communicates with the first pressure chamber (450). The pressure hole (411) is connected between the first valve cover (410) and the second float (820) in a swingable manner. The first pressure pad (440) is installed on the first swing rod (430). When the second float (820) rises and falls, it drives the first swing rod (430) to move so that the first pressure pad (440) blocks or leaves the first pressure hole (411). The second valve disc (420) can move elastically relative to the fourth water outlet (340) to control the opening and closing of the fourth water outlet (340).

5. The flushing system according to any one of claims 1 to 4, characterized in that: The first container (710) has a first drain hole (711) at its bottom, and a third float (730) is installed on the first drain hole (711). The third float (730) can float and rise relative to the first drain hole (711) to close or open the first drain hole (711). The second container (810) has a second drain hole (811) at its bottom, and a fourth float (830) is installed on the second drain hole (811). The fourth float (830) can float and rise relative to the second drain hole (811) to close or open the second drain hole (811).

6. The flushing system according to claim 5, characterized in that: The bottom of the second container (810) is also provided with a third drain hole (812), and a rotating component (840) is installed on the third drain hole (812). The rotating component (840) can rotate relative to the third drain hole (812) to change the water passage area of ​​the third drain hole (812).

7. The flushing system according to claim 1, characterized in that: The first water passage (110) includes a first inlet channel (111) and a first outlet channel (112). The third water passage (130) is connected to the first outlet channel (112). A first inlet (113) is defined between the first inlet channel (111) and the first outlet channel (112). The control valve (200) includes a second valve cover (210), a third valve disc (220), a second rocker arm (230), and a second pressure pad (240). The third valve disc (220) is movably mounted on the second valve cover (210). A second pressure chamber (250) is defined between the third valve disc (220) and the second valve cover (210). The valve cover (210) is provided with a second pressure relief hole (211) communicating with the second pressure chamber (250). The second rocker arm (230) is elastically deformably connected between the second valve cover (210) and the first float (720). The second pressure pad (240) is installed on the second rocker arm (230). When the first float (720) rises and falls, it drives the second rocker arm (230) to move, so that the second pressure pad (240) blocks or leaves the second pressure relief hole (211). The third valve disc (220) can elastically move relative to the first water outlet (113) to control the opening and closing of the first water outlet (113).

8. The flushing system according to claim 1, 2, or 7, characterized in that: The inlet side of the fourth water passage (310) and the inlet side of the first water passage (110) are connected by a sixth water passage (140). The sixth water passage (140) includes a sixth inlet channel (141) and a sixth outlet channel (142). The sixth inlet channel (141) is connected to the first water passage (110) located upstream of the control valve (200). The sixth outlet channel (142) is connected to the inlet side of the fourth water passage (310). A sixth water inlet (143) is defined between the sixth inlet channel (141) and the sixth outlet channel (142). The manual valve (500) controls the opening and closing of the sixth water inlet (143).

9. The flushing system according to claim 8, characterized in that: The manual valve (500) includes a pull rope (510), a valve seat (520), a third rocker arm (530), a fourth valve disc (540), a piston (550), and a second elastic element (560). The third rocker arm (530) is rotatably mounted on the valve seat (520), and the pull rope (510) is connected to the third rocker arm (530). The fourth valve disc (540) is elastically deformable and mounted on the valve seat (520) to control the opening and closing of the sixth water outlet (143). The valve seat (520) is provided with a valve cavity (521). The piston (550) is movably mounted in the valve chamber (521). The fourth valve disc (540) and the valve seat (520) define a third pressure chamber (570). The third pressure chamber (570) is connected to the valve chamber (521). The second elastic member (560) applies an elastic force to the piston (550) to move it toward the third pressure chamber (570). When the third rocker arm (530) moves, it can drive the piston (550) to move away from the third pressure chamber (570).

10. The flushing system according to claim 1, characterized in that: The Venturi pipe (940) includes an inlet section (941), a constriction section (942), a throat section (943), a flared section (944), and an intake section (945). The inlet section (941), the constriction section (942), the throat section (943), and the flared section (944) are connected in sequence. The inner diameter of the constriction section (942) gradually decreases from the inlet section (941) toward the throat section (943). The inner diameter of the throat section (943) is smaller than the inner diameter of the inlet section (941). The inner diameter of the flared section (944) gradually increases away from the throat section (943). The intake section (945) is connected to the flared section (944) radially.

11. A toilet seat, characterized in that: The toilet includes a toilet body (900), a water tank (910), and a flushing system according to any one of claims 1 to 10, wherein the flushing system is installed on the water tank (910), the venturi pipe (940) is connected to the brush ring water passage (920) of the toilet body (900), and the outlet side of the fifth water passage (320) is connected to the bottom spray water passage (930) of the toilet body (900).

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