Mixing and distributing valve, toilet flushing system, and toilet

Abstract

The present invention provides a mixing and dispensing valve, a toilet flushing system, and a toilet. The mixing and dispensing valve includes a water channel distribution module and a water pressure supply module. The water channel distribution module is provided with a first water supply passage, a distribution chamber, and multiple first water outlet passages. The water pressure supply module is provided with a second water supply passage and a first water passage, and the first water supply passage and the first water passage each communicate with the distribution chamber. The water channel distribution module is provided with a first switching mechanism that controls whether each first water outlet passage is connected to the third cavity. The water pressure supply module is provided with a second switching mechanism that controls whether the second water supply passage is connected to the first water passage. When used in a toilet flushing system, the mixing and dispensing valve of the present invention can be connected to a water pump and a water pipe simultaneously, adapting to different toilet application scenarios and achieving the goals of energy saving and satisfying flushing requirements.

Description

[Technical Field]

[0001] This application claims priority from a Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on August 18, 2022, bearing application number 202210992687.6 and titled "Mixing and dispensing valve, toilet flushing system, and toilet," and a Chinese patent application bearing application number 202210993995.0 and titled "Mixing and integrated valve, toilet flushing system, and toilet," and the disclosures of these Chinese patent applications are incorporated herein in their entirety.

[0002] The present invention relates to the bathroom field, and in particular to a mixing and dispensing valve and a toilet flushing system and a toilet. [Background technology]

[0003] Currently, smart toilets use low-pressure water tanks, resulting in low water potential energy within the tank. Therefore, relying solely on the water potential energy within the tank for flushing affects the flushing effect. Therefore, a water pump-based flushing system is currently widely used. The water pump pressurizes water from the water tank and outputs it to a distribution valve, which then distributes the flush water sequentially to the toilet's rim waterway and jet waterway. However, the water pump-based flushing system has drawbacks: it consumes a lot of power and cannot function properly if the power goes out, preventing the toilet from functioning properly. To solve these technical issues, a water supply valve group is added to the water pump and distribution valve. The water supply valve group includes a sealed water tank, a first solenoid valve, and a second solenoid valve. The sealed water tank supplies flush water to the toilet's rim waterway via the first solenoid valve and to the toilet's jet waterway via the second solenoid valve. This method of adding a water supply valve group solves the problem of the water pump not working during a power outage and the toilet not being able to be used normally, but it has drawbacks such as the overall structure being complicated and the cost being significantly increased due to the introduction of an additional water supply valve group.

[0004] Prior art distributing valves are basically single-supply type, and their water inlet end cannot be connected to the water pump inlet end and then connected to the water pipe. This means that toilets flush only by pressurizing the water pump, resulting in the problem of the water pump being turned off and becoming unusable. Furthermore, the water pump consumes a lot of power, which is detrimental to energy conservation. If the distributing valve's water inlet end is connected to the water pipe, the toilet flushes using tap water. However, tap water's unstable water pressure during peak demand periods can affect flushing, and when the tap water pressure is low, the flushing power is insufficient, affecting the flushing effect. Therefore, to adapt to different toilet application scenarios, a distributing valve with a multi-way water supply function that can easily switch between tap water supply and water pump pressurization to achieve toilet flushing modes is urgently needed. Summary of the Invention

[0005] SUMMARY OF THE INVENTION The present invention provides a mixing and dispensing valve and toilet flushing system and toilet to address the problems of the prior art and overcome the deficiencies of prior art dispensing valves.

[0006] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0007] A mixing distribution valve comprising a water channel distribution module and a water pressure supply module, wherein the water channel distribution module is provided with a first water supply passage, a distribution chamber and a plurality of first water outlet passages, the water pressure supply module is provided with a second water supply passage and a first water channel, the first water supply passage and the first water channel each communicate with the distribution chamber, the water channel distribution module is provided with a first switching mechanism which controls whether or not each first water outlet passage is connected to the distribution chamber, and the water pressure supply module is provided with a second switching mechanism which controls whether or not the second water supply passage is connected to the first water channel.

[0008] a mixing and distributing valve comprising a water channel distribution module and a water pressure supply module, wherein the water channel distribution module is provided with a first water supply passage, a distribution chamber and a plurality of first water outlet passages; the water pressure supply module is provided with a second water supply passage and a first water channel, the second water supply passage and the first water channel each communicating with the distribution chamber; a movable water stop component is movably provided within the distribution chamber; when water flows into the first water supply passage, the movable water stop component is pushed by water pressure to block the flow of water into the first water channel; when water flows into the first water channel, the movable water stop component is pushed by water pressure to block the flow of water into the second water supply passage; the water channel distribution module is provided with a first switching mechanism which controls whether or not each first water outlet passage is connected to the distribution chamber; and the water pressure supply module is provided with a second switching mechanism which controls whether or not the second water supply passage is connected to the first water channel.

[0009] Furthermore, the first switching mechanism includes a first switching component that controls switching of communication between the distribution chamber and each first water outlet passage, and a first drive component that drives the operation of the first switching component, and the second switching mechanism includes a second switching component that controls whether or not communication is established between the second water supply passage and the first water passage, and a second drive component that drives the operation of the second switching component.

[0010] Furthermore, the water channel distribution module is further provided with a first transition chamber, the first switching component is provided in the first transition chamber, and divides the first transition chamber into a first valve chamber and a first back pressure chamber, the first valve chamber communicates with the distribution chamber and also communicates with the first back pressure chamber via a pore provided in the first switching component, the first back pressure chamber is provided with a first pressure relief port, the first driving component controls the opening and closing of the first pressure relief port, and thereby the first switching component controls the switching of communication between the first valve chamber and the plurality of first water outlet passages in accordance with changes in water pressure in the first back pressure chamber. The hydraulic water supply module further includes a second transition chamber, the second switching component is provided in the second transition chamber, and divides the second transition chamber into a second valve chamber and a second back pressure chamber, the second valve chamber communicates with the second water supply passage and also communicates with the second back pressure chamber via a pore provided in the second switching component, the second back pressure chamber is provided with a second pressure relief port, and the second driving component controls the opening and closing of the second pressure relief port, so that the second switching component controls whether the second valve chamber and the first water passage are connected in accordance with changes in the water pressure in the second back pressure chamber.

[0011] Furthermore, the first switching component includes a watertight diaphragm, a slide rod, and a gasket, the watertight diaphragm is fitted onto one end of the slide rod, the gasket is fitted onto the other end of the slide rod, a first communication port is provided between the first valve chamber and a part of the first water outlet passage, a second communication port is provided between the first valve chamber and the remaining first water outlet passage, the slide rod is drilled into the first communication port and the second communication port, the watertight diaphragm controls the opening and closing of the first communication port, the gasket controls the opening and closing of the second communication port, a third communication port is provided between the second valve chamber and the first water passage, and the second switching component is a diaphragm component that controls the opening and closing of the third communication port.

[0012] Furthermore, the first driving component and the second driving component are respectively mechanical driving components or electronically controlled driving components, the electronically controlled driving components including either a motor driving component or an electromagnetic valve head, and the electronically controlled driving components can be powered by a supercapacitor and / or a backup battery.

[0013] Furthermore, the apparatus further includes a check valve provided in the first water supply passage, and the check valve only allows water to flow from the first water supply passage into the distribution chamber.

[0014] The device further includes a drive module installed between the first drive component and the second drive component, and the drive module controls the coordinated operation of the first drive component and the second drive component to switch the communication between the distribution chamber and each first water outlet passage when water flows into the first water supply passage, and to switch the communication between the distribution chamber and each first water outlet passage when water flows into the first water passage.

[0015] Further, the drive module includes a motor and a switching rotor driven by the motor, the switching rotor is provided with a first drive unit and a second drive unit, and the switching rotor has a first operating state in which the first drive unit presses the first drive component, and a second operating state in which the first drive unit presses the second drive component and then the second drive unit presses the first drive component.

[0016] Furthermore, the first drive unit and the second drive unit are installed on the same end edge of the switching rotor and distributed along the circumferential direction of the switching rotor, the circumferential dimension of the first drive unit is larger than the circumferential dimension of the second drive unit, and the switching rotor is further provided with an operating unit suitable for manually rotating the switching rotor.

[0017] Furthermore, the distribution chamber includes a first cavity communicating with the first water supply passage, a second cavity communicating with the first water passage, and a third cavity, a first communication port is provided between the first cavity and the third cavity, a second communication port is provided between the second cavity and the third cavity, the movable water-stopping component is movably provided within the third cavity, when water flows into the first water supply passage, the movable water-stopping component is pushed by water pressure to close the second communication port, and when water flows into the first water passage, the movable water-stopping component is pushed by water pressure to close the third cavity of the first communication port, the first switching mechanism controls whether or not there is communication between each first water outlet passage and the third cavity of the distribution chamber, the portion between the first communication port and the second communication port of the third cavity is an annular space, and the movable water-stopping component is an annular two-way check valve piece fitted into the annular space.

[0018] Further, the first driving component includes a first switch component and a first driving lever that open and close the first pressure relief port, the first switch component is movably installed on the water channel distribution module, a first reset component is engaged with the water channel distribution module, the first driving lever is movably connected to the first switch component, and the first driving lever is pressed to drive the first switch component, the second driving component includes a second switch component and a second driving lever that open and close the second pressure relief port, the second switch component is movably installed on the water pressure supply module, a second reset component is engaged with the water pressure supply module, the second driving lever is movably connected to the second switch component, and the second driving lever is pressed to drive the second switch component.

[0019] Furthermore, the first switching component includes a watertight diaphragm, a slide rod, and a gasket, the watertight diaphragm is fitted onto one end of the slide rod, the gasket is fitted onto the other end of the slide rod, a third communication port is provided between the first valve chamber and a part of the first water outlet passage, a fourth communication port is provided between the first valve chamber and the remaining first water outlet passage, the slide rod is drilled into the third communication port and the fourth communication port, the watertight diaphragm controls the opening and closing of the third communication port, the gasket controls the opening and closing of the fourth communication port, a fifth communication port is provided between the second valve chamber and the first water passage, and the second switching component is a diaphragm component that controls the opening and closing of the fifth communication port.

[0020] Furthermore, the water channel distribution module is further provided with an atmospheric vent communicating with the distribution chamber, the opening and closing of which is controlled by an anti-siphon float provided in the distribution chamber, and the outlet of the first water channel faces the anti-siphon float.

[0021] Furthermore, the hydraulic water supply module is further provided with a second water outlet passage and a second water passage, and the second water outlet passage communicates with the second water supply passage via the second water passage.

[0022] The present invention also provides a toilet flushing system, comprising a water tank and a water pump, the water inlet end of the water pump is connected to the water tank, and further comprising the mixing and distributing valve described in the present invention above, the water outlet end of the water pump is connected to the first water supply passage, the second water supply passage is used to connect to a normal pressure water source, some of the multiple first water outlet passages are used to connect to the rim part of the toilet body, and the rest are used to connect to the toilet jet part.

[0023] Furthermore, the hydraulic water supply module is further provided with a second water outlet passage and a second water passage, the second water outlet passage being connected to the second water supply passage via the second water passage, and the second water outlet passage being connected to the water inlet end of a water supply valve provided in the water tank.

[0024] The present invention further provides a toilet, comprising a toilet body and a toilet flushing system as described in the present invention above, wherein some of the plurality of first water outlet passages communicate with a rim portion of the toilet body and the remainder communicate with a jet portion of the toilet body, the rim portion including one or more combinations of a rim water channel, a rim mouth, and a rim nozzle, and the jet portion including one or more combinations of a jet water channel, a jet mouth, and a jet nozzle.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The mixing and distributing valve of the present invention comprises the water channel distribution module and the water pressure supply module, so that the mixing and distributing valve of the present invention has two water intake functions in addition to the distribution function, and when applied to a toilet flushing system, it can be connected to the water pump and the water pipe at the same time, easily realizing the toilet flushing mode that switches between the water supply and the water pump pressurization, adapting to different application scenarios of the toilet, achieving the purpose of energy saving and meeting the flushing requirements. In addition, the design of the mixing and distributing valve of the present invention eliminates the need for additional water supply valves in the toilet flushing system, making the overall structure of the toilet flushing system simpler and less expensive.

[0027] 2. The mixing and distributing valve of the present invention adopts a pilot valve design at the location where the first switching element / second switching element is located, and utilizes the pressure difference between the hydraulic pressure receiving surfaces to switch functions, which makes the structure more reliable.

[0028] 3. By installing the air vent and anti-siphon float, when the mixing and distributing valve of the present invention is applied to a toilet flushing system, it can prevent the water in the toilet water tank from flowing back into the water pipe when negative pressure occurs in the water pipe connected to the second water supply passage.

[0029] 4. The hydraulic water supply module is further provided with the second water outlet passage, so that the mixing and distributing valve of the present invention can directly supply water to components such as the water supply valve of the toilet water tank, thereby reducing the number of water pipes and angle valves required to supply water to components such as the water supply valve.

[0030] 5. A check valve is installed in the first water supply passage to allow water to flow only from the first water supply passage to the distribution chamber, so that when water flows into the first water passage, water does not flow from the distribution chamber into the first water supply passage.

[0031] 6. The driving module controls the coordinated operation of the first driving component and the second driving component, eliminating the need to control the first driving component and the second driving component separately, making the overall structure of the mixing and dispensing valve more compact, miniaturized, and energy-saving. In particular, the driving module includes the motor and the switching rotor, making it simple in structure and easy to control.

[0032] The present invention will be described in more detail below with reference to the accompanying drawings and examples, but the mixing and dispensing valve, toilet flushing system, and toilet of the present invention are not limited to the examples. [Brief explanation of the drawings]

[0033] [Figure 1] 1 is an exploded schematic view of a mixing and distributing valve according to a first embodiment of the present invention; FIG. [Figure 2] 1 is a schematic diagram of the three-dimensional structure of the mixing and dispensing valve of the present invention according to Example 1. FIG. [Figure 3] 1 is a cross-sectional view of a mixing and dispensing valve of the present invention according to a first embodiment. [Figure 4] 2 is a cross-sectional view of the mixing and dispensing valve of the present invention according to the first embodiment; FIG. [Figure 5] 1 is a cross-sectional view of the mixing and distributing valve of the present invention according to the first embodiment, showing a state in which water flows into a first water supply passage. FIG. [Figure 6] 1 is a cross-sectional view of the mixing and distributing valve of the present invention according to the first embodiment, showing a state in which water flows out from a first water outlet passage. FIG. [Figure 7] 10 is a cross-sectional view of the mixing and distributing valve according to the first embodiment of the present invention, showing a state in which water flows out from another first water outlet passage. FIG. [Figure 8] 1 is a partial cross-sectional view of the mixing and distributing valve of the present invention according to the first embodiment, showing a state in which water flows into a second water supply passage. FIG. [Figure 9]1 is a cross-sectional view of the mixing and distributing valve of the present invention according to the first embodiment when water flows from a second water supply passage to a distributing chamber. FIG. [Figure 10] 1 is a structural schematic diagram of a toilet flushing system / toilet of the present invention according to Example 1. FIG. [Figure 11] FIG. 10 is an exploded schematic view of a mixing and distributing valve according to a second embodiment of the present invention. [Figure 12] FIG. 10 is a schematic diagram of the three-dimensional structure of the mixing and dispensing valve of the present invention according to the second embodiment. [Figure 13] FIG. 10 is an exploded schematic view of a driving module according to a second embodiment of the present invention. [Figure 14] FIG. 10 is a cross-sectional view of a fitting portion between a first switching component and a valve body assembly according to a second embodiment of the present invention. [Figure 15] FIG. 10 is a side view of the initial state of the mixing and distributing valve of the present invention according to the second embodiment. [Figure 16] 1 is a cross-sectional view of a state in which water flows into a first water supply passage of a mixing and distributing valve of the present invention according to a second embodiment. FIG. [Figure 17] 10 is a cross-sectional view of the mixing and distributing valve of the present invention according to the second embodiment, showing a state in which water flows into the first water supply passage. FIG. [Figure 18] FIG. 10 is a side view of the mixing and dispensing valve of the present invention according to the second embodiment when the first driving component is driven. [Figure 19] FIG. 10 is a partial cross-sectional view of the mixing and distributing valve of the present invention according to the second embodiment, showing a state in which water flows out from a first water outlet passage. [Figure 20] FIG. 10 is a partial cross-sectional view of the mixing and distributing valve according to the second embodiment of the present invention, showing a state in which water flows out from another first water outlet passage. [Figure 21] FIG. 10 is a side view of the mixing and dispensing valve of the present invention according to the second embodiment when the second driving component is driven. [Figure 22] 1 is a cross-sectional view of a state in which water flows into a second water supply passage of a mixing and distributing valve of the present invention according to a second embodiment. FIG. [Figure 23] 2 is a cross-sectional view showing a state in which water flows into a second water supply passage of the mixing and distributing valve of the present invention according to the second embodiment; FIG. [Figure 24] FIG. 10 is a side view of the mixing and distributing valve of the present invention according to the second embodiment when the first driving component and the like are driven. [Figure 25] FIG. 10 is a structural schematic diagram of a toilet flushing system / toilet of the present invention according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0034] In the present invention, terms such as "first" and "second" are merely used to distinguish between similar items and are not necessarily used to describe a specific order or chronological order, and cannot be understood as indicating or implying relative importance. In the description, the use of orientations or positional relationships indicated by "upper," "lower," etc. is based on the orientations or positional relationships shown in the drawings and is intended solely to facilitate the description of the present invention. It does not indicate or imply that the devices referred to must have a specific orientation, be configured, or operate in a specific orientation, and should not be understood as limiting the scope of protection of the present invention. Those skilled in the art can understand the specific meaning of the above description in this application based on specific circumstances. Furthermore, in the description of this application, unless otherwise specified, "plurality" means two or more.

[0035] Example 1 As shown in Figures 1 to 9, the mixing and distributing valve of the present invention comprises a water channel distribution module 9 and a water pressure supply module 10, which are integrated to form a valve body assembly 1. The water channel distribution module 9 is provided with a first water supply passage 11, a distribution chamber 15, and a plurality of first water outlet passages 12, 13, and the water pressure supply module 10 is provided with a second water supply passage 14 and a first water passage 16, which are each connected to the distribution chamber 15. The water channel distribution module 9 is provided with a first switching mechanism that controls whether or not each first water outlet passage is connected to the distribution chamber 15. The water pressure supply module 10 is provided with a second switching mechanism that controls whether or not the second water supply passage 14 is connected to the first water passage 16. In this way, when the mixing and distributing valve of the present invention is used in combination with a water pump to flush the toilet, even if the water pump becomes inoperable due to a power outage or the like, the mixing and distributing valve of the present invention can be connected to a normal pressure water source via the second water supply passage 14, thereby ensuring normal flushing of the toilet. The normal pressure water source refers to the municipal water supply water source.

[0036] The first switching mechanism includes a first switching component 5 that controls the switching of communication between the distribution chamber 15 and each first water outlet passage, and a first driving component 2 that drives the operation of the first switching component 5, and the second switching mechanism includes a second switching component 6 that controls whether or not communication is established between the second water supply passage 14 and the first water passage 16, and a second driving component 3 that drives the operation of the second switching component 6.

[0037] As shown in FIG. 3, the water channel distribution module 9 is further provided with a first transition chamber 17, the first switching component 5 is provided in the first transition chamber 17, and divides the first transition chamber 17 into a first valve chamber 171 and a first back pressure chamber 172, the first valve chamber 171 is connected to the distribution chamber 15 and is also connected to the first back pressure chamber 172 through a pore provided in the first switching component 5, the first back pressure chamber 172 is provided with a first pressure relief port 173, the first driving component 2 controls the opening and closing of the first pressure relief port 173, and thereby the first switching component 5 controls the switching of communication between the first valve chamber 171 and the plurality of first water outlet passages 12, 13 according to changes in water pressure in the first back pressure chamber 172. The first switching component 5 includes a water stop diaphragm 52, a slide rod 51, and a gasket 53. The water stop diaphragm 52 is fitted to one end of the slide rod 51, and the gasket 53 is fitted to the other end of the slide rod 51. A first communication port-I19 is provided between the first valve chamber 171 and a portion of the first water outlet passage, and a second communication port-I110 is provided between the first valve chamber 171 and the remaining first water outlet passage. The slide rod 51 is drilled through the first communication port-I19 and the second communication port-I110. The water stop diaphragm 52 controls the opening and closing of the first communication port-I19, and the gasket 53 controls the opening and closing of the second communication port-I110. A support plate supporting the water stop diaphragm 52 is provided at one end of the slide rod 51, and the periphery of the water stop diaphragm 52 is tightly pressed into the first transition chamber 17. A fine water column passing through the fine water hole is provided in the support plate at a position corresponding to the fine water hole provided in the water stop diaphragm 52. A first elastic component 4 that resets the first switching component 5 is provided in the first back pressure chamber 172, and the first elastic component 4 is a spring.

[0038] As shown in Figures 5, 8 and 9, the hydraulic water supply module 10 is further provided with a second transition chamber 18, the second switching component 6 is installed in the second transition chamber 18 and divides the second transition chamber 18 into a second valve chamber 181 and a second back pressure chamber 182, the second valve chamber 181 communicates with the second water supply passage 14 and also communicates with the second back pressure chamber 182 through a pore provided in the second switching component 6, the second back pressure chamber 182 is provided with a second pressure relief port 183 (shown in Figure 8), the second driving component 3 controls the opening and closing of the second pressure relief port 183, and thereby the second switching component 6 controls whether the second valve chamber 181 is connected to the first water passage 16 in accordance with changes in the water pressure in the second back pressure chamber 182. A third communication port-I111 is provided between the second valve chamber 181 and the first water passage 16, and the second switching element 6 is a diaphragm element that controls the opening and closing of the third communication port-I111. The second switching element 6 specifically includes a water stop diaphragm 61 and a support plate 62. The water stop diaphragm 61 is fitted into the support plate 62, and the periphery of the water stop diaphragm 61 is tightly pressed within the second transition chamber 18. A water column passing through the water stop diaphragm hole is provided at a position of the support plate 62 corresponding to the water stop diaphragm hole. A second elastic element 41 that resets the second switching element 6 is provided within the second back pressure chamber 182, and the second elastic element 41 is a spring.

[0039] The first communication port-I19, the first communication port-I110, and the third communication port-I111 correspond to the first communication port 19, the second communication port 110, and the third communication port 111, respectively, in the prior Chinese application with application number 202210992687.6.

[0040] In this embodiment, the first and second driving components are electronically controlled driving mechanisms, but are not limited thereto. In other embodiments, the first and second driving components are purely mechanical driving mechanisms, such as push-type driving mechanisms. In this embodiment, the first and second driving components are solenoid valve heads. For ease of distinction, the two solenoid valve heads are named the first solenoid valve head 2 and the second solenoid valve head 3, respectively. That is, the first driving component is the first solenoid valve head 2, and the second driving component is the second solenoid valve head 3. In other embodiments, the first and second driving components may be motor-driven mechanisms, which are electrically driven structures powered by motors, and the motors are preferably low-power stepping motors. As shown in FIG. 1 , the first solenoid valve head 2 includes a fixed bracket 21, a coil 22, an armature (not shown), and a reset spring (not shown). The coil 22 is fixed to the outside of the waterway distribution module 9 via the fixed bracket 21, and the armature is movably installed within the coil 22. One end of the armature is provided with a plug 23 that opens and closes the first pressure relief hole 173. The reset spring is fitted to the outside of the armature to reset the armature. When the coil 22 is energized, the armature overcomes the elastic force of the reset spring due to the action of a magnetic field and moves away from the first pressure relief hole 173, thereby causing the plug 23 to open the first pressure relief hole 173. When the power to the coil 22 is turned off, the armature moves toward the first pressure relief hole 173 due to the restoring force of the reset spring, causing the plug 23 to close the first pressure relief hole 173. The structure and operating principle of the second solenoid valve head 3 are the same or almost the same as those of the first solenoid valve head 2, so a detailed description will be omitted. The coils of the first solenoid valve head 2 and the second solenoid valve head 3 have low power consumption and can operate with a small current, so the first solenoid valve head 2 and the second solenoid valve head 3 can be powered by a supercapacitor and / or a backup battery.

[0041] As shown in FIG. 5 , the water channel distribution module 9 further includes an air vent 112 communicating with the distribution chamber, and the opening and closing of the air vent 112 is controlled by an anti-siphon float 8 installed in the distribution chamber 15. The outlet of the first water channel 16 faces the anti-siphon float 8, so that when water flows out from the outlet of the first water channel 16, the anti-siphon float 8 is quickly pushed upward, closing the air vent 112. Two water-stopping gaskets 81 are fitted to the lower end of the anti-siphon float 8. When the air vent 112 and the anti-siphon float 8 are installed in the mixing distribution valve of the present invention, the installation of the air vent 112 and the anti-siphon float 8 prevents water in the toilet tank from backflowing into the water pipe when negative pressure occurs in the water pipe connected to the second water supply passage 114 when the mixing distribution valve of the present invention is applied to a toilet flushing system. In another embodiment, the present invention does not include the air vent and the anti-siphon float, and instead prevents siphoning by using an anti-siphon device installed between the second water supply line and the water pipe or on the water pipe.

[0042] A check valve 7 is installed in the first water supply passage 11, which only allows water to flow from the first water supply passage 11 into the distribution chamber 15. Specifically, the check valve 7 is located at the outlet of the first water supply passage 11, but is not limited to this. This prevents water from flowing from the distribution chamber 15 into the first water supply passage 11 when water flows into the first water passage 16. Since opening and closing between the first water passage 16 and the second water supply passage 14 is controlled by the second switching mechanism (i.e., the second solenoid valve head 6), there is no need to provide a check valve in the first water passage 16.

[0043] The hydraulic water supply module 10 is further provided with a second water outlet passage 113 and a second water passage 114 , and the second water outlet passage 113 communicates with the second water supply passage 14 via the second water passage 114 .

[0044] The number of the first water outlet passages 12, 13 is specifically two, but is not limited to this.

[0045] 1, the water channel distribution module 9 is specifically assembled from a main valve body 91, an anti-siphon cover 92, a valve lid 93, etc., and the air vent 112 is provided in the anti-siphon cover 12, and a seal ring 94 is fitted between the anti-siphon cover 12 and the main valve body 11. The hydraulic water supply module 10 is approximately inverted Y-shaped.

[0046] The mixing and dispensing valve of the present invention can be applied to a toilet flushing system. As shown in Figure 10, the toilet flushing system comprises a water tank 20, a water pump 20, and a water supply mechanism for replenishing water to the water tank 20. The water inlet end of the water pump 30 is connected to the water tank 20. In a specific application, the first water supply passage 11 is connected to the water outlet end of the water pump 30, the second water supply passage 14 is connected to a pressurized water source, one of the first water outlet passages 12 is connected to the rim of the toilet body, and the other first water outlet passage 13 is connected to the jet of the toilet body.

[0047] When the mixing and dispensing valve of the present invention is used in combination with a water pump to flush a toilet, if the water pump fails to operate due to a power outage or other reason, the mixing and dispensing valve of the present invention can be connected to a pressurized water source (i.e., a water pipe) using its second water supply passage 14 to flush the toilet with tap water, thereby solving the problem of the toilet not functioning normally due to the water pump failing. Furthermore, according to the present invention, when there is no power outage, the user can switch between water pump pressurization and tap water supply depending on the tap water pressure, thereby achieving the goals of saving energy and satisfying flushing requirements. For example, the water pump pressurization water supply mode can be used to flush the toilet during peak tap water demand (unstable water pressure) or low tap water pressure, and the tap water supply mode can be used to flush the toilet during non-peak tap water demand and high water pressure. Furthermore, the design of the mixing and dispensing valve of the present invention eliminates the need for additional water supply valves in the toilet flushing system, making the overall toilet flushing system simpler and less expensive. In particular, when the first and second driving components are mechanical driving mechanisms or electronically controlled driving mechanisms that consume little power and can be driven with a small current (for example, the first solenoid valve head 2 and the second solenoid valve head 3 can be directly powered by a supercapacitor or a battery), the present invention ensures that the components can operate normally even when the water pump is unable to operate due to a power outage, and that the toilet can be flushed normally even after a power outage.

[0048] The initial state of the mixing and dispensing valve of the present invention is shown in Figure 3. At this time, the first communication port-I19 is closed and the second communication port-I110 is open, so that one first water outlet passage 12 corresponding to the second communication port-I110 is open, and the other first water outlet passage 13 corresponding to the first communication port-I19 is closed. The mixing and dispensing valve of the present invention has two operating modes. The two operating modes of the mixing and dispensing valve of the present invention will be described below with reference to the toilet flushing process.

[0049] A first mode of operation of the present invention is as follows.

[0050] In the water pump 30 pressurization mode, as shown in Figure 5, when the water pump 30 is started, it extracts water from the water tank 20, and the water enters the first water supply passage 11. The water pressure opens the check valve 7, and the water enters the distribution chamber 15, pushing up the anti-siphon float 8 and closing the atmosphere vent 112. Before the coil 22 of the first solenoid valve head 2 is energized, one of the first water outlet passages 12 is connected to the distribution chamber 15, so as shown in Figure 6, water flows sequentially from the distribution chamber 15, the first valve chamber 171, and the second communication port-I110 to one of the first water outlet passages 12, and finally flows out from one of the first water outlet passages 12 to flush the toilet bowl surface.

[0051] When the preset flush time for the first water outlet passage 12 arrives, the toilet bowl flush is completed, and the coil 22 of the first solenoid valve head 2 is energized, causing the plug 23 to open the first pressure relief port 173. This causes the water in the first back pressure chamber 172 to flow out through the first pressure relief port 173, significantly reducing the water pressure in the first back pressure chamber 172. Because the water pressure in the first valve chamber 171 is much higher than the water pressure in the first back pressure chamber 172, as shown in FIG. 7 , the first switching element 5 is pushed by the water pressure in the first valve chamber 171 toward the first back pressure chamber 172, opening the first communication port -I19. Water then flows out of the other first water outlet passage 13, flushing away waste from the bottom of the toilet bowl. At the same time, the gasket 53 closes the second communication port -I110, preventing water from flowing out of the other first water outlet passage 12. When power to the coil 22 of the first solenoid valve head 2 is cut off or reverse current flows, the plug 23 of the first solenoid valve head closes the first pressure relief port 173. At this time, water in the first valve chamber 171 gradually replenishes into the first back pressure chamber 172 through the pores of the water stop diaphragm 52, gradually increasing the water pressure in the first back pressure chamber 172 until it becomes the same as the water pressure in the first valve chamber 171. At this time, because the cross-sectional area of the first back pressure chamber 172 is large, the first switching element 5 is pushed by the water pressure in the first back pressure chamber 172 and the first elastic element 4, moving in a direction away from the first back pressure chamber 172, opening the second communication port-I110 and closing the first communication port-I19. As a result, the first switching element 5 returns to the state shown in FIG. 3, and the operation of the water pump 30 also stops.

[0052] A second mode of operation of the present invention is as follows.

[0053] 8 and 9, in the tap water supply mode, when water flows into the second water supply passage 14 and the coil of the second solenoid valve head 3 is energized, the plug 31 of the second solenoid valve head 3 opens the second pressure relief hole 183, allowing the water in the second back pressure chamber 182 to flow out through the second pressure relief port 183, thereby significantly reducing the water pressure in the second back pressure chamber 182. At this time, the water pressure in the second valve chamber 181 is much higher than the water pressure in the second back pressure chamber 182, so the second switching element 6 is pushed by the water pressure in the second valve chamber 181 and moves toward the second back pressure chamber 182, opening the third communication port-I111. As a result, water sequentially flows from the second valve chamber 181 and the third communication port-I111 to the first water passage 16. As shown in Figure 6, when water flows out of the first water passage 16, the water flow pushes the anti-siphon float 8 upward, moving the anti-siphon float 8 upward and closing the atmospheric vent 112. At the same time, the water flow pushes the check valve 7 upward and closes the first water supply passage 11. Water sequentially flows from the distribution chamber 15, first valve chamber 171, and second communication port-I110 to one of the first water outlet passages 12, and finally flows out of one of the first water outlet passages 12 to flush the toilet bowl surface. Because the second water outlet passage 113 is connected to the second water supply passage 14, when water flows into the second water supply passage 14, water also flows out of the second water outlet passage 113, supplying water to other components that require water.

[0054] When the preset flush time for the first water outlet passage 12 arrives, the toilet bowl flush is completed, and the coil 22 of the first solenoid valve head 2 is energized, causing the plug 23 to open the first pressure relief port 173. This causes the water in the first back pressure chamber 172 to flow out through the first pressure relief port 173, significantly reducing the water pressure in the first back pressure chamber 172. Because the water pressure in the first valve chamber 171 is much higher than the water pressure in the first back pressure chamber 172, as shown in FIG. 7 , the first switching element 5 is pushed by the water pressure in the first valve chamber 171 toward the first back pressure chamber 172, opening the first communication port -I19. Water then flows out of the other first water outlet passage 13, flushing away waste from the bottom of the toilet bowl. At the same time, the gasket 53 closes the second communication port -I110, preventing water from flowing out of the other first water outlet passage 12. When power to the coil 22 of the first solenoid valve head 2 is cut off or reverse current flows, the plug 53 of the first solenoid valve head closes the first pressure relief port 173. At this time, water in the first valve chamber 171 gradually replenishes into the first back pressure chamber 172 through the pores of the water stop diaphragm 52, gradually increasing the water pressure in the first back pressure chamber 172 until it becomes the same as the water pressure in the first valve chamber 171. At this time, because the cross-sectional area of the first back pressure chamber 172 is large, the first switching element 5 is pushed by the water pressure in the first back pressure chamber 172 and the first elastic element 7, moving away from the first back pressure chamber 172 and resetting, opening the second communication port-I110 and closing the first communication port-I19. As a result, the first switching element 5 returns to the state shown in FIG. 3, and the operation of the water pump 30 also stops. Similarly, when the power to the coil of the second solenoid valve head 3 is cut off or a reverse current flows, the plug 31 of the second solenoid valve head 3 closes the second pressure relief port 183. At this time, water in the second valve chamber 181 is gradually replenished into the second back pressure chamber 182 through the pores in the water stop diaphragm 61, gradually increasing the water pressure in the second back pressure chamber 182 until it becomes the same as the water pressure in the second valve chamber 181. At this time, because the cross-sectional area of the second back pressure chamber 182 is large, the center of the second switching component 6 is pushed by the water pressure in the second back pressure chamber 182 and the second elastic component 41, moving in a direction away from the second back pressure chamber 182 and resetting, closing the third communication port -I111 and cutting off communication between the second water supply passage 14 and the first water passage 16.

[0055] As shown in Figures 1 to 10, the toilet flushing system of the present invention comprises a water tank 20, a water pump 30, and a water supply mechanism for replenishing water to the water tank 20, with the water inlet end of the water pump 30 connected to the water tank 20. The toilet flushing system further comprises the mixing and distributing valve of the present invention described above, with the water outlet end of the water pump 30 connected to the first water supply passage 11 and the second water supply passage 14 used to connect to a pressurized water source. Specifically, the second water supply passage 14 is connected to a water pipeline via a three-way pipe 50 and an angle valve 60 in sequence, with the remaining water passage of the three-way pipe 50 used to connect to a water passage corresponding to the smart toilet cover 80 of the toilet. Of the plurality of first water outlet passages 12, 13, some of the first water outlet passages are used to connect to the rim of the toilet body, and the remaining first water outlet passages are used to connect to the toilet's jetting portion.

[0056] In this embodiment, the water supply mechanism is specifically, but not limited to, a mechanical water supply valve 40 provided in the water tank. The hydraulic water supply module 10 is further provided with the second water outlet passage 113, which is connected to the water inlet end of the water supply valve 40, so that water can be directly supplied to the water supply valve 40 from the second water outlet passage 113, thereby reducing the number of water pipes and angle valves required to supply water to the water supply valve 40.

[0057] In this embodiment, the present invention further includes a control board, which controls the coordinated operation of the water pump 30, the first solenoid valve head 2, and the second solenoid valve head 3. The first solenoid valve head 2 and the second solenoid valve head 3 can be powered by a backup battery or a supercapacitor installed on the control board.

[0058] In this embodiment, the structure and operating principle of the mixing and distributing valve are omitted here, and reference is made to the above explanation.

[0059] The operating principle of the toilet flushing system of the present invention is that when the water pump 30 is started, it extracts water from the water tank 20, and the water flows into the first water supply passage 11, and the mixing and distributing valve operates in the first operating mode to flush the toilet. If the water pump 30 becomes inoperable due to a power outage or the like and is switched to the mains water supply mode, the mixing and distributing valve operates in the second operating mode to flush the toilet.

[0060] 1 to 10, the toilet of the present invention includes a toilet body 70 and further includes the toilet flushing system described above in the present invention, and some of the plurality of first water outlet passages communicate with the rim portion of the toilet body, and the rest communicate with the jet portion of the toilet body. Specifically, one of the first water outlet passages 12 communicates with the rim portion of the toilet body 70, and the other first water outlet passage 13 communicates with the jet portion of the toilet body 70.

[0061] In this embodiment, the rim section is used to clean the bowl surface of the toilet body 70 and includes one or more combinations of a rim channel, a rim opening, and a rim nozzle. The jet section is used to flush waste that has fallen to the bottom of the toilet body 70 into the waste discharge pipe of the toilet body 1 and includes one or more combinations of a jet channel, a jet opening, and a jet nozzle. Specifically, the rim section includes a rim nozzle 71 attached to the top of the toilet body 70, which may be replaced by the rim channel or a rim opening attached to the top of the toilet. The jet section includes a jet nozzle 72 attached to the bottom of the toilet and facing the inlet of the waste discharge pipe of the toilet body 70, which may be replaced by the jet channel or a jet opening attached to the bottom of the toilet and facing the inlet of the waste discharge pipe. The toilet is a smart toilet, and the water tank 20 is a low-temperature tank.

[0062] The flushing process of the toilet of the present invention is as described above, so a detailed description will be omitted.

[0063] Example 2 11 to 24, the mixing and distributing valve of the present invention comprises a water channel distribution module 9 and a water pressure water supply module 10, and the water channel distribution module 9 and the water pressure water supply module are integrated to form a valve body assembly 1. The water channel distribution module 9 is provided with a first water supply passage 11, a distribution chamber 15, and a plurality of first water outlet passages 12, 13, and the water pressure water supply module 10 is provided with a second water supply passage 14 and a first water passage 16, and the first water supply passage 11 and the first water passage 16 each communicate with the distribution chamber 15. A movable water stop member is movably provided in the distribution chamber 15, and when water flows into the first water supply passage 11, the movable water stop member is pushed by water pressure to block water flow into the first water passage 16, and when water flows into the first water passage 16, the movable water stop member is pushed by water pressure to block water flow into the second water supply passage 11. Specifically, the distribution chamber 15 includes a first cavity 153 communicating with the first water supply passage 11, a second cavity 154 communicating with the first water passage 16, and a third cavity 155. A first communication port-II 151 is provided between the first cavity 153 and the third cavity 155, and a second communication port-II 152 is provided between the second cavity 154 and the third cavity 155, with the first communication port-II 151 and the second communication port-II 152 facing each other. The movable water stop member is movably provided within the third cavity 155, and when water flows into the first water supply passage 11, the movable water stop member is pushed by water pressure to close the second communication port-II 152, and when water flows into the first water passage 16, the movable water stop member is pushed by water pressure to close the first communication port-II 151. The water channel distribution module 9 is provided with a first switching mechanism that controls whether or not each first water outlet passage is connected to the third cavity 155 of the distribution chamber 15. The water pressure supply module 10 is provided with a second switching mechanism that controls whether or not the second water supply passage 14 is connected to the first water channel 16. As such, when the mixing and distributing valve of the present invention is used in combination with a water pump to flush a toilet, even if the water pump becomes inoperable due to a power outage or the like, the mixing and distributing valve of the present invention can be connected to a normal pressure water source using the second water supply passage 14, thereby ensuring normal toilet flushing. The normal pressure water source refers to a municipal water supply source.

[0064] The first switching mechanism includes a first switching element 5 that controls communication between the third cavity 155 of the distribution chamber 15 and each first water outlet passage, and a first driving element 2' that drives the operation of the first switching element 5, while the second switching mechanism includes a second switching element 6 that controls communication between the second water supply passage 14 and the first water passage 16, and a second driving element 3' that drives the operation of the second switching element 6. The present invention further includes a driving module 4'. The driving module 4' is installed in the valve body assembly 1 and is located between the first driving element 2' and the second driving element 3'. The drive module 4' controls the coordinated operation of the first drive part 2' and the second drive part 3', thereby switching the communication between the third cavity 155 of the distribution chamber 15 and each first water outlet passage when water flows into the first water supply passage 11, and switching the communication between the third cavity 155 of the distribution chamber 15 and each first water outlet passage when water flows into the first water passage 16.

[0065] The driving module 4' presses and drives the first driving component 2' and the second driving component 3'. Specifically, as shown in Fig. 13, the driving module 4' includes a motor 41' and a switching rotor 42 driven by the motor 41', the switching rotor 42 is provided with a first driving unit 421 and a second driving unit 422, and the switching rotor 42 has a first operating state in which the first driving unit 421 presses the first driving component 2', and a second operating state in which the first driving unit 421 presses the second driving component 3' and then the second driving unit 422 presses the first driving component 2'. Specifically, the first driving part 421 and the second driving part 422 are installed on the same edge of the switching rotor 42 and are distributed along the circumferential direction of the switching rotor 42, and the circumferential dimension of the first driving part 421 is larger than that of the second driving part 422. Specifically, the first driving part 421 is arc-shaped, and the second driving part 422 is block-shaped. The switching rotor 42 is further provided with an operating part 423 suitable for manually rotating the switching rotor 42. The motor 41' is specifically a stepping motor. The driving module 4' further includes a housing assembly 43 for fixing the motor 41', the motor 41' is attached to the housing assembly, and the housing assembly is fixedly connected to the valve body assembly 1.

[0066] As shown in FIG. 14, the water channel distribution module 9 further includes a first transition chamber 17, and the first switching component 5 is provided in the first transition chamber 17, dividing the first transition chamber 17 into a first valve chamber 171 and a first back pressure chamber 172. The first valve chamber 171 is connected to the third cavity 155 of the distribution chamber 15 and is connected to the first back pressure chamber 172 through a pore provided in the first switching component 5. The first back pressure chamber 172 is provided with a first pressure relief port 173, and the first driving component 2 controls the opening and closing of the first pressure relief port 173, thereby allowing the first switching component 5 to control the switching of communication between the first valve chamber 171 and the plurality of first water outlet passages 12, 13 according to changes in the water pressure in the first back pressure chamber 172. The first switching component 5 includes a water-stopping diaphragm 52, a slide rod 51, and a gasket 53. The water-stopping diaphragm 52 is fitted to one end of the slide rod 51, and the gasket 53 is fitted to the other end of the slide rod 51. A third communication port-II19' is provided between the first valve chamber 171 and a portion of the first water outlet passage, and a fourth communication port 110' is provided between the first valve chamber 171 and the remaining first water outlet passage. The slide rod 51 is drilled through the third communication port-II19' and the fourth communication port 110'. The water-stopping diaphragm 52 controls the opening and closing of the third communication port-II19', and the gasket 53 controls the opening and closing of the fourth communication port 110'. A support plate supporting the water-stopping diaphragm 52 is provided at one end of the slide rod 51, and the periphery of the water-stopping diaphragm 52 is tightly pressed into the first transition chamber 17. A fine water column passing through the fine water hole is provided at a position of the support plate corresponding to the fine water hole provided in the water stop diaphragm 52.

[0067] The first communication port-II151, the second communication port-II152, and the third communication port-II19' respectively correspond to the first communication port 151, the second communication port 152, and the third communication port 19 in the prior Chinese application with application number 202210993995.0.

[0068] 16, the hydraulic water supply module 10 is further provided with a second transition chamber 18, and the second switching component 6 is installed in the second transition chamber 18, dividing the second transition chamber 18 into a second valve chamber 181 and a second back pressure chamber 182. The second valve chamber 181 communicates with the second water supply passage 14 and also communicates with the second back pressure chamber 182 via a small hole provided in the second switching component 6. A second pressure relief port (not shown) is provided in the second back pressure chamber 182, and the second drive component 3' controls the opening and closing of the second pressure relief port, so that the second switching component 6 controls the communication between the second valve chamber 181 and the first water passage 16 in response to changes in the water pressure in the second back pressure chamber 182. A fifth communication port 111' is provided between the second valve chamber 181 and the first water passage 16, and the second switching component 6 is a diaphragm component that controls the opening and closing of the fifth communication port 111'. The second switching component 6 specifically includes a water stop diaphragm 61 and a support plate 62. The water stop diaphragm 61 is fitted into the support plate 62, and the periphery of the water stop diaphragm 61 is tightly pressed within the second transition chamber 18. A water column is provided at a position of the support plate 62 corresponding to the water stop hole provided in the water stop diaphragm 61, passing through the water stop hole.

[0069] As shown in FIG. 14 , the first driving component 2′ includes a first switch component 21′ and a first driving lever 22′ that open and close the first pressure relief port 173. The first switch component 21′ is movably mounted on the valve body assembly 1, and a first reset component 23′ is fitted to the valve body assembly 1. The first driving lever 22′ is movably connected to the first switch component 21′, and the first driving lever 22′ is pressed to drive the first switch component 21′, thereby causing the first switch component 21′ to open the first pressure relief port 173. When the first driving lever 22′ releases the first switch component 21′, the first switch component 21′ is reset by the action of the first reset component 23′ and closes the first pressure relief port 173. The second driving component 3′ includes a second switch component 31′ and a second driving lever 32 that open and close the second pressure relief port. A second switch component 31' is movably mounted on the valve body assembly 1, and a second reset component 33 is fitted to the valve body assembly 1. A second drive lever 32 is movably connected to the second switch component 31', and when the second drive lever 32 is pressed, it drives the second switch component 31', causing the second switch component 31' to open the second pressure relief port. When the second drive lever 32 releases the second switch component 31', the second switch component 31' is reset using the second reset component 33 and closes the second pressure relief port 173. The drive module 4' presses and drives the first drive component 2' and the second drive component 3', and therefore the main body that presses the first drive lever 22' and the second drive lever 32 is the drive module 4'. Specifically, the first driving lever 22' and the second driving lever 32 are installed opposite each other, the switching rotor 42 is located between the first driving lever 22' and the second driving lever 32, the first driving part 421 is for pressing the first driving lever 22' or the second driving lever 32, and the second driving part 422 is for pressing the second driving lever 32. The first reset part 23' and the second reset part 33 are each a spring. The first switch part 21' and the second switch part 31' each include a movable lever and a plug provided at one end of the movable lever, and the other end of the movable lever is movably connected to the first driving lever 22' or the second driving lever 32.

[0070] As shown in Figure 16, the water channel distribution module 9 is further provided with an atmospheric vent 112 communicating with the second cavity 154 of the distribution chamber, and the opening and closing of the atmospheric vent 112 is controlled by an anti-siphon float 8 provided in the second cavity 154. As shown in Figures 16 and 17, the outlet of the first water channel 16 faces the anti-siphon float 8, so that when water flows out from the outlet of the first water channel 16, the anti-siphon float 8 is quickly driven to move upward and close the atmospheric vent 112, and when water stops flowing out from the outlet of the first water channel 16, the anti-siphon float 8 falls by its own weight. By providing the atmospheric vent 112 and the anti-siphon float 8, when the mixing and distributing valve of the present invention is applied to a toilet flushing system, it is possible to prevent water in the toilet water tank from flowing back into the water pipe when negative pressure occurs in the water pipe connected to the second water supply passage 14. In another embodiment, the present invention does not provide the air vent and anti-siphon float, but rather provides anti-siphonage using an anti-siphonage device attached between the second water supply line and the water pipe or on the water pipe.

[0071] In this embodiment, the valve body assembly 1 is further provided with a second water outlet passage 113 and a second water passage 114 , and the second water outlet passage 113 communicates with the second water supply passage 14 via the second water passage 114 .

[0072] 16, the portion of the third cavity 155 of the distribution chamber 15 between the first communication port-II151 and the second communication port-II152 is an annular space, and the movable water-stopping component is an annular two-way check valve piece 7' fitted into the annular space. This makes it possible to use the annular space to guide the movement of the two-way check valve piece 7' and stabilize the movement of the two-way check valve piece 7'.

[0073] In this embodiment, the number of the first water outlet passages 12, 13 is specifically two, but is not limited to this.

[0074] The initial state of the mixing and dispensing valve of the present invention is shown in Figure 15. At this time, the switching rotor 42 does not press the first drive lever 22' and the second drive lever 32, the third communication port-II19' is closed, and the fourth communication port 110' is open, so that one of the first water outlet passages 12 corresponding to the fourth communication port 110' is open, and the other of the first water outlet passages 13 corresponding to the third communication port-II19' is closed.

[0075] The present invention has two modes of operation, the first mode of operation being as follows.

[0076] 19, when water flows into the first water supply passage 11, the water flow pushes the two-way check valve piece 7' upward, causing the two-way check valve piece 7' to open the first communication port-II 151 and close the second communication port-II 152. The water sequentially flows from the first cavity 153, the third cavity 155, the first valve chamber 171, and the fourth communication port 110' of the distribution chamber 15 to one of the first water outlet passages 12, and finally flows out from one of the first water outlet passages 12.

[0077] When the preset water outflow time for one of the first water outflow passages 12 arrives, the motor 41' starts, moving the switching rotor 42 counterclockwise, causing the first drive part 421 of the switching rotor 42 to press the first drive lever 22'. As a result, the first drive lever 22' pulls the first switch component 21' outward and opens the first pressure relief port 173, as shown in FIG. 18. As a result, water in the first back pressure chamber 172 flows out through the first pressure relief port 173, significantly reducing the water pressure in the first back pressure chamber 172. At this time, because the water pressure in the first valve chamber 171 is much higher than the water pressure in the first back pressure chamber 172, the first switch component 5 is pushed by the water pressure in the first valve chamber 171 and moves toward the first back pressure chamber 172, opening the third communication port-II19'. As shown in FIG. 20, water flows out of the other first water outflow passage 13. At the same time, the gasket 53 closes the fourth communication port 110', preventing water from flowing out of the first water outlet passage 12. When the motor 41' resets the switching rotor 42 to its initial position, the first drive portion 421 of the switching rotor 42 releases the first drive lever 22', and the first switch component 21' closes the first pressure relief port 173 through the action of the first reset component 23'. At this time, water in the first valve chamber 171 gradually flows into the first back pressure chamber 172 through the pores of the water stop diaphragm 52, gradually increasing the water pressure in the first back pressure chamber 172 until it becomes equal to the water pressure in the first valve chamber 171. At this time, because the cross-sectional area of the first back pressure chamber 172 is large, the first switching component 5 is pushed by the water pressure in the first back pressure chamber 172 and moves away from the first back pressure chamber 172, opening the fourth communication port 110' and closing the third communication port-II19'.

[0078] A second mode of operation of the present invention is as follows.

[0079] When water flows into the second water supply passage 14, the motor 41' starts, rotating the switching rotor 42 clockwise. The first drive member 421 of the switching rotor 42 presses the second drive lever 32, which then pulls the second switch component 31' outward and opens the second pressure relief port, as shown in FIG. 21 . This causes water in the second back pressure chamber 182 to flow out through the second pressure relief port, significantly reducing the water pressure in the second back pressure chamber 182. Because the water pressure in the second valve chamber 181 is much higher than the water pressure in the second back pressure chamber 182, the second switch component 6 is pushed by the water pressure in the second valve chamber 181 toward the second back pressure chamber 182, opening the fifth communication port 111'. As shown in FIG. 22 , water flows sequentially from the second valve chamber 181 and the fifth communication port 111' to the first water passage 16. As shown in Figure 23, when water flows from the first water passage 16 into the second cavity 154 of the distribution chamber, the water flow pushes the anti-siphon float 8 upward, moving the anti-siphon float 8 upward and closing the atmospheric vent 112. Then, the water flow pushes the two-way check valve piece 7' downward, causing the two-way check valve piece 7' to open the second communication port-II 152 and close the first communication port-II 151. As shown in Figure 19, water sequentially flows from the second cavity 154, third cavity 155, first valve chamber 171, and fourth communication port 110' of the distribution chamber 15 to one of the first water outlet passages 12, and finally flows out from one of the first water outlet passages 12. Since the second water outlet passage 113 is connected to the second water supply passage 14, when water flows into the second water supply passage 14, water also flows out from the second water outlet passage 113 and supplies water to other components that require water (for example, the water supply valve described below).

[0080] When the preset water outflow time for one of the first water outflow passages 12 arrives, the motor 41' continues to move the switch rotor 42 clockwise, causing the first drive part 421 of the switch rotor 42 to continue pressing the second drive lever 32, and at the same time, the second drive part 422 of the switch rotor 42 presses the first drive lever 22', which in turn pulls the first switch component 21' outward and opens the first pressure relief port 173, as shown in Figure 21. As a result, water in the first back pressure chamber 172 flows out through the first pressure relief port 173, significantly reducing the water pressure in the first back pressure chamber 172. At this time, the water pressure in the first valve chamber 171 is much higher than the water pressure in the first back pressure chamber 172, so the first switching element 5 is pushed by the water pressure in the first valve chamber 171 and moves toward the first back pressure chamber 172, opening the third communication port-II19', and water flows out from the other first water outlet passage 13, as shown in Figure 20. At the same time, the gasket 53 closes the fourth communication port 110', preventing water from flowing out from one of the first water outlet passages 12. When the motor 41' moves the switching rotor 42 to reset it to its initial position, the switching rotor 42 releases the first drive lever 22' and the second drive lever 32, and the first switch element 21' closes the first pressure relief port 173 due to the action of the first reset element 23'. At this time, water in the first valve chamber 171 is gradually replenished into the first back pressure chamber 172 through the pores in the water stop diaphragm 52, gradually increasing the water pressure in the first back pressure chamber 172 until it becomes the same as the water pressure in the first valve chamber 171. At this time, because the cross-sectional area of the first back pressure chamber 172 is large, the first switching component 5 is pushed by the water pressure in the first back pressure chamber 172 and moves away from the first back pressure chamber 172, resetting it, opening the fourth communication port 110' and closing the third communication port-II19'. Similarly, the second switch component 31' closes the second pressure relief port through the action of the second reset component 33. At this time, water in the second valve chamber 181 is gradually replenished into the second back pressure chamber 182 through the pores in the water stop diaphragm 61, gradually increasing the water pressure in the second back pressure chamber 182 until it becomes the same as the water pressure in the second valve chamber 181.At this time, because the cross-sectional area of the second back pressure chamber 182 is large, the center of the second switching component 6 is pushed by the water pressure in the second back pressure chamber 182, moving away from the second back pressure chamber 182 and resetting, closing the fifth communication port 111' and cutting off communication between the second water supply passage 14 and the first water passage 16. In order to quickly reset the first switching component 5, it is also possible to add an elastic component to the first back pressure chamber 172 and use this elastic component to speed up the resetting of the first switching component 5. Similarly, it is also possible to add an elastic component to the second back pressure chamber 182 and use this elastic component to speed up the resetting of the second switching component 6.

[0081] The mixing and dispensing valve of the present invention can be applied to a toilet flushing system. As shown in Figure 25, the toilet flushing system comprises a water tank 20, a water pump 20, and a water supply mechanism for replenishing water to the water tank 20. The water inlet of the water pump 30 is connected to the water tank 20. In a specific application, the first water supply passage 11 is connected to the water outlet of the water pump 30, the second water supply passage 14 is connected to a normal pressure water source (i.e., a municipal water source), one of the first water outlet passages 12 is connected to the rim of the toilet body, and the other first water outlet passage 13 is connected to the jet of the toilet body.

[0082] When the mixing and distributing valve of the present invention is used in combination with a water pump to flush a toilet, if the water pump fails to operate due to a power outage or other reason, the mixing and distributing valve of the present invention can be connected to a normal pressure water source (i.e., a municipal water supply source) using its second water supply passage 14 to flush the toilet with tap water, thereby solving the problem of the toilet not functioning normally due to the water pump failing. Furthermore, according to the present invention, when there is no power outage, the user can switch between water pump pressurization and tap water supply depending on the tap water pressure, thereby achieving the goals of energy conservation and satisfying flushing requirements. For example, during peak tap water demand (unstable water pressure) or low tap water pressure, the water pump pressurization water supply mode can be used to flush the toilet, and during non-peak tap water demand and high water pressure, the tap water supply mode can be used to flush the toilet. The installation of the movable water stop device prevents water from crossing the first water supply passage 11 and the first water passage 16, thereby preventing normal operation from being affected. Moreover, according to the design of the mixing and dispensing valve of the present invention, there is no need to introduce additional water supply valve groups into the toilet flushing system, making the overall structure of the toilet flushing system simpler and less expensive.

[0083] As shown in Figures 11 to 25, the toilet flushing system of the present invention comprises a water tank 20, a water pump 30, and a water supply mechanism for replenishing water to the water tank 20, with the water inlet of the water pump 30 communicating with the water tank 20. The toilet flushing system further comprises the mixing and distributing valve of the present invention described above, with the water outlet of the water pump 30 communicating with the first water supply passage 11, and the second water supply passage 14 used to connect to a normal pressure water source. Specifically, the second water supply passage 14 is connected to a water pipeline via a three-way pipe 50 and an angle valve 60, and the remaining water passage of the three-way pipe 50 is used to communicate with a water passage corresponding to the smart toilet cover 80 of the toilet. Of the plurality of first water outlet passages 12, 13, some of the first water outlet passages are used to communicate with the rim of the toilet body, and the remaining first water outlet passages are used to communicate with the toilet's jetting section. Specifically, there are two first water outflow passages, one of which, 12, is connected to the rim of the toilet body, and the other, 13, is connected to the jet of the toilet body.

[0084] In this embodiment, the water supply mechanism is specifically, but not limited to, a mechanical water supply valve 40 provided in the water tank. The hydraulic water supply module 10 is further provided with the second water outlet passage 113, which is connected to the water inlet end of the water supply valve 40, so that water can be directly supplied to the water supply valve 40 from the second water outlet passage 113, thereby reducing the number of water pipes and angle valves required to supply water to the water supply valve 40.

[0085] The present invention further includes a control board that controls the coordinated operation of the water pump 30 and the motor 41'. The motor 41' can be powered by a backup battery or a supercapacitor provided on the control board.

[0086] In this embodiment, the structure and operating principle of the mixing and distributing valve are omitted here, and reference is made to the above explanation.

[0087] The operating principle of the toilet flushing system of the present invention is that when the water pump 30 is started, it extracts water from the water tank 20, and the water flows into the first water supply passage 11, and the mixing and distributing valve operates in the first operating mode to flush the toilet. If the water pump 30 becomes inoperable due to a power outage or the like and is switched to the mains water supply mode, the mixing and distributing valve operates in the second operating mode to flush the toilet.

[0088] As shown in Figures 11 to 25, the toilet of the present invention includes a toilet body 70 and further includes the toilet flushing system described above in the present invention, and some of the multiple first water outlet passages communicate with the rim portion of the toilet body, and the rest communicate with the jet portion of the toilet body. Specifically, one of the first water outlet passages 12 communicates with the rim portion of the toilet body 70, and the other first water outlet passage 13 communicates with the jet portion of the toilet body 70.

[0089] In this embodiment, the rim section is used to clean the bowl surface of the toilet body 70 and includes one or more combinations of a rim channel, a rim opening, and a rim nozzle. The jet section is used to flush waste that has fallen to the bottom of the toilet body 70 into the waste discharge pipe of the toilet body 1 and includes one or more combinations of a jet channel, a jet opening, and a jet nozzle. Specifically, the rim section includes a rim nozzle 71 attached to the top of the toilet body 70, which may be replaced by the rim channel or a rim opening attached to the top of the toilet. The jet section includes a jet nozzle 72 attached to the bottom of the toilet and facing the inlet of the waste discharge pipe of the toilet body 70, which may be replaced by the jet channel or a jet opening attached to the bottom of the toilet and facing the inlet of the waste discharge pipe. The toilet is a smart toilet, and the water tank 20 is a low-temperature tank.

[0090] The flushing process of the toilet of the present invention is as described above, so a detailed description will be omitted.

[0091] For the mixing and dispensing valve and toilet flushing system and toilet of the present invention, all unrelated parts are the same as or can be realized using conventional techniques.

[0092] The above embodiments are merely for the purpose of further illustrating the mixing and dispensing valve, toilet flushing system, and toilet of the present invention, and the present invention is not limited to the embodiments. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention are all included in the protection scope of the technical solution of the present invention. [Industrial Applicability]

[0093] The present invention provides a mixing and dispensing valve, a toilet flushing system, and a toilet. The mixing and dispensing valve includes a water channel distribution module and a water pressure supply module. The water channel distribution module is provided with a first water supply passage, a distribution chamber, and multiple first water outlet passages. The water pressure supply module is provided with a second water supply passage and a first water passage, and the first water supply passage and the first water passage each communicate with the distribution chamber. The water channel distribution module is provided with a first switching mechanism that controls whether each first water outlet passage is connected to the third cavity. The water pressure supply module is provided with a second switching mechanism that controls whether the second water supply passage is connected to the first water passage. When used in a toilet flushing system, the mixing and dispensing valve of the present invention can be connected to a water pump and a water pipe simultaneously, adapting to different toilet application scenarios, achieving the goals of energy saving and satisfying flushing requirements, and having good industrial applicability. [Explanation of symbols]

[0094] 1, valve body assembly, 11, first water supply passage, 12 / 13, first water outlet passage, 14, second water supply passage, 15, distribution chamber, 151, first communication port-II, 152, second communication port-II, 153, first cavity, 154, second cavity, 155, third cavity, 16, first water passage, 17, first transition chamber, 171, first valve chamber, 172, first back pressure chamber, 173, first pressure relief port, 18, second transition chamber, 181, second valve chamber, 182, first back pressure chamber, 183, second pressure relief port, 19, first communication port-I, 110, second communication port-I, 111, third communication port-I, third communication port-I, 112, atmospheric port, 113, second water outlet passage, 114, second water passage, 19', third communication port-II, 110', fourth communication port, 111', fifth communication port, 2, first solenoid valve head, 21, fixing bracket, 22, coil assembly, 23, plug, 3, second solenoid valve head, 31, plug, 4, first elastic part, 41, second elastic part, 2', first driving part, 21', First switch component, 22', first drive lever, 23', first reset component, 3', second drive component, 31', second switch component, 32, second drive lever, 33, second reset component, 4', drive module, 41', motor, 42, switching rotor, 421, first drive unit, 422, second drive unit, 423, operating unit, 43, housing assembly, 5, first switching component, 51, slide rod, 52, water stop diaphragm, 53, gasket, 6, second switching component , 61, Water stop diaphragm, 62, Support plate, 7, Check valve, 7', Two-way check valve piece, 8, Anti-siphon float, 9, Water channel distribution module, 91, Main valve body, 92, Anti-siphon cover, 93, Valve cover, 94, Sealing ring, 10, Water pressure water supply module, 20, Water tank, 30, Water pump, 40, Water supply valve, 50, Three-way pipe, 60, Angle valve, 70, Toilet body, 71, Rim nozzle, 72, Spray nozzle, 80, Smart toilet cover.

Claims

1. A mixing and distributing valve comprising a water channel distribution module and a water pressure supply module, wherein the water channel distribution module is provided with a first water supply passage, a distribution chamber and a plurality of first water outlet passages, the water pressure supply module is provided with a second water supply passage and a first water passage, the first water supply passage and the first water passage each communicate with the distribution chamber, the water channel distribution module is provided with a first switching mechanism which controls whether or not each first water outlet passage is connected to the distribution chamber, and the water pressure supply module is provided with a second switching mechanism which controls whether or not the second water supply passage is connected to the first water passage.

2. a water channel distribution module and a water pressure supply module, wherein the water channel distribution module is provided with a first water supply passage, a distribution chamber, and a plurality of first water outlet passages; the water pressure supply module is provided with a second water supply passage and a first water passage, the second water supply passage and the first water passage each communicate with the distribution chamber; a movable water stop element is movably provided within the distribution chamber, wherein when water flows into the first water supply passage, the movable water stop element is pushed by water pressure to block water flow into the first water passage, and when water flows into the first water passage, the movable water stop element is pushed by water pressure to block water flow into the second water supply passage; the water channel distribution module is provided with a first switching mechanism which controls whether or not each first water outlet passage is connected to the distribution chamber; and the water pressure supply module is provided with a second switching mechanism which controls whether or not the second water supply passage is connected to the first water passage.

3. 3. The mixing and distributing valve according to claim 1, wherein the first switching mechanism comprises a first switching component that controls switching of communication between the distribution chamber and each first water outlet passage, and a first driving component that drives the operation of the first switching component, and the second switching mechanism comprises a second switching component that controls whether or not communication is established between the second water supply passage and the first water passage, and a second driving component that drives the operation of the second switching component.

4. The water channel distribution module is further provided with a first transition chamber, the first switching component is provided in the first transition chamber, and divides the first transition chamber into a first valve chamber and a first back pressure chamber, the first valve chamber communicates with the distribution chamber and also communicates with the first back pressure chamber via a pore provided in the first switching component, the first back pressure chamber is provided with a first pressure relief port, the first driving component controls the opening and closing of the first pressure relief port, thereby the first switching component controls the switching of communication between the first valve chamber and the plurality of first water outlet passages according to changes in water pressure in the first back pressure chamber, a second transition chamber is further provided, the second switching component is provided in the second transition chamber and divides the second transition chamber into a second valve chamber and a second back pressure chamber, the second valve chamber is connected to the second water supply passage and is connected to the second back pressure chamber via a small hole provided in the second switching component, a second pressure relief port is provided in the second back pressure chamber, and the second driving component controls the opening and closing of the second pressure relief port, thereby the second switching component controls whether the second valve chamber is connected to the first water passage in accordance with a change in water pressure in the second back pressure chamber.

5. 5. The mixing and dispensing valve according to claim 4, wherein the first switching component includes a water stop diaphragm, a slide rod, and a gasket, the water stop diaphragm is fitted to one end of the slide rod, and the gasket is fitted to the other end of the slide rod, a first communication port is provided between the first valve chamber and a part of the first water outlet passages, and a second communication port is provided between the first valve chamber and the remaining first water outlet passages, the slide rod is drilled through the first communication port and the second communication port, the water stop diaphragm controls the opening and closing of the first communication port, the gasket controls the opening and closing of the second communication port, a third communication port is provided between the second valve chamber and the first water passage, and the second switching component is a diaphragm component that controls the opening and closing of the third communication port.

6. The mixing and dispensing valve according to any one of claims 3 to 5, characterized in that the first driving part and the second driving part are respectively mechanical driving mechanisms or electronically controlled driving mechanisms, the electronically controlled driving mechanisms include either a motor driving mechanism or an electromagnetic valve head, and the electronically controlled driving mechanisms can be powered by a supercapacitor and / or a backup battery.

7. 5. The mixing and distributing valve according to claim 1, further comprising a check valve provided in the first water supply passage, the check valve allowing only the inflow of water from the first water supply passage into the distributing chamber.

8. 3. The mixing and distributing valve according to claim 2, further comprising a driving module installed between the first driving part and the second driving part, wherein the driving module controls the coordinated operation of the first driving part and the second driving part to switch the communication between the distribution chamber and each first water outlet passage when water flows into the first water supply passage, and to switch the communication between the distribution chamber and each first water outlet passage when water flows into the first water passage.

9. 9. The mixing and dispensing valve according to claim 8, wherein the driving module comprises a motor and a switching rotor driven by the motor, the switching rotor is provided with a first driving part and a second driving part, and the switching rotor has a first operating state in which the first driving part presses the first driving part, and a second operating state in which the first driving part presses the second driving part and then the second driving part presses the first driving part.

10. 10. The mixing and dispensing valve according to claim 9, wherein the first driving unit and the second driving unit are installed on the same edge of the switching rotor and are distributed along the circumferential direction of the switching rotor, the circumferential dimension of the first driving unit is larger than the circumferential dimension of the second driving unit, and the switching rotor is further provided with an operating unit suitable for manually rotating the switching rotor.

11. The distribution chamber includes a first cavity communicating with the first water supply passage, a second cavity communicating with the first water passage, and a third cavity, a first communication port between the first cavity and the third cavity, a second communication port between the second cavity and the third cavity, the movable water stop component is movably provided in the third cavity, and when water flows into the first water supply passage, the movable water stop component is pushed by water pressure to close the second communication port, and A mixing and distributing valve as described in any one of claims 2 or 8 to 10, characterized in that when water flows in, the movable water stop component is pushed by water pressure to close the third cavity of the first communication port, the first switching mechanism controls whether or not each first water outlet passage is connected to the third cavity of the distribution chamber, the portion of the third cavity between the first communication port and the second communication port is an annular space, and the movable water stop component is an annular two-way check valve piece fitted into the annular space.

12. 5. The mixing and distributing valve according to claim 4, characterized in that the first driving component includes a first switch component and a first driving lever for opening and closing the first pressure relief port, the first switch component is movably installed on the water channel distribution module, a first reset component is fitted to the water channel distribution module, the first driving lever is movably connected to the first switch component, and the first driving lever is pressed to drive the first switch component, the second driving component includes a second switch component and a second driving lever for opening and closing the second pressure relief port, the second switch component is movably installed on the water pressure supply module, a second reset component is fitted to the water pressure supply module, the second driving lever is movably connected to the second switch component, and the second driving lever is pressed to drive the second switch component.

13. 5. The mixing and dispensing valve according to claim 4, wherein the first switching component includes a water stop diaphragm, a slide rod, and a gasket, the water stop diaphragm is fitted to one end of the slide rod, and the gasket is fitted to the other end of the slide rod, a third communication port is provided between the first valve chamber and some of the first water outlet passages, and a fourth communication port is provided between the first valve chamber and the remaining first water outlet passages, the slide rod is drilled through the third and fourth communication ports, the water stop diaphragm controls the opening and closing of the third communication port, the gasket controls the opening and closing of the fourth communication port, a fifth communication port is provided between the second valve chamber and the first water passage, and the second switching component is a diaphragm component that controls the opening and closing of the fifth communication port.

14. The mixing and distributing valve according to any one of claims 1 to 5, characterized in that the water channel distributing module is further provided with an atmospheric port communicating with the distribution chamber, the opening and closing of the atmospheric port is controlled by an anti-siphon float provided in the distribution chamber, and the outlet of the first water channel faces the anti-siphon float.

15. The hydraulic water supply module is further provided with a second water outlet passage and a second water passage, and the second water outlet passage is connected to the second water supply passage via the second water passage. A mixing and distributing valve as described in any one of claims 1 to 5.

16. A toilet flushing system comprising a water tank and a water pump, the water inlet end of the water pump being connected to the water tank, and further comprising a mixing and distributing valve according to any one of claims 1 to 15, the water outlet end of the water pump being connected to the first water supply passage, the second water supply passage being used to connect to a normal pressure water source, some of the plurality of first water outlet passages being used to connect to the rim portion of the toilet body, and the rest being used to connect to the jet portion of the toilet.

17. 17. The toilet flushing system of claim 16, wherein the water pressure water supply module is further provided with a second water outlet passage and a second water passage, the second water outlet passage communicates with the second water supply passage via a second water passage, and the second water outlet passage communicates with the water inlet end of a water supply valve provided in the water tank.

18. 18. A toilet comprising a toilet body and further comprising the toilet flushing system of claim 16 or 17, wherein some of the plurality of first water outlet passages communicate with a rim portion of the toilet body and the remainder communicate with a jet portion of the toilet body, the rim portion including one or more combinations of a rim water channel, a rim mouth, and a rim nozzle, and the jet portion including one or more combinations of a jet water channel, a jet mouth, and a jet nozzle.

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