Electric flush valve and toilet with integrated multi-channel water supply

Abstract

The present invention discloses an electrically controlled flushing valve and toilet with integrated multi-channel water supply, comprising a water inlet component and at least one water supply solenoid valve, the water inlet component comprising a water inlet main pipe, a first water inlet pipe and a second water inlet pipe, the water inlet main pipe comprising an anti-siphon device and a first pipe and a second pipe respectively connected to the first water inlet pipe and the second water inlet pipe, the anti-siphon device comprising an anti-siphon valve and an anti-siphon cover with a siphon air inlet, a water outlet connected to a switching valve and the water supply solenoid valve being provided on the second pipe, the anti-siphon valve being able to move between a first position and a second position at the top of the first pipe under the control of the water inlet pressure of the first pipe or its own weight to control the connection or cutoff of the first pipe and the second pipe and the opening or closing of the siphon air inlet, the switching valve being able to move between a third position and a fourth position under the control of the water inlet pressure in different directions in the second pipe or its own weight to control the conduction or cutoff of water inlets and water outlets in different directions.

Description

Technical Field

[0001] The present invention relates to the field of flush valves, and in particular to an electrically controlled flush valve and a toilet integrated with multi-channel water supply. Background Art

[0002] With the advancement and development of science and technology and the increasing needs of users, the functions of smart toilets have become more comprehensive. In smart toilets, an electronically controlled flush valve is generally used to control the two functions of flushing and brushing.

[0003] However, the existing electronically controlled flushing valve has the following problems:

[0004] 1. The water supply channel is single, with only tap water or water pressurized by a pump in the water tank;

[0005] 2. When it is necessary to be compatible with multiple water supply systems, the anti-siphonage and drainage circuits are complicated.

[0006] 3. The anti-siphon function of some flushing valves is fictitious and does not actually play an anti-siphon role. Summary of the Invention

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an electrically controlled flushing valve and a toilet with integrated multi-channel water supply.

[0008] In order to achieve the above objectives, the technical solution of the present invention is:

[0009] An electrically controlled flushing valve with integrated multi-channel water supply includes a water inlet assembly and at least one water supply solenoid valve. The water inlet assembly includes a water inlet main pipe, a first water inlet pipe and a second water inlet pipe. The water inlet main pipe includes a first pipe, a second pipe and an anti-siphon device. The first pipe and the second pipe are respectively connected to the first water inlet pipe and the second water inlet pipe. The anti-siphon device includes an anti-siphon valve and an anti-siphon cover with a siphon air inlet. The second pipe includes a first end, a second end and an intermediate portion between the first end and the second end. The first end can be connected to the first pipe, the second end is connected to the second water inlet pipe, and the intermediate portion is provided with a valve connected to the water supply solenoid valve. The water outlet is connected to the magnetic valve, and a switching valve is installed inside the middle part. The anti-siphon valve is configured to move between a first position and a second position at the top of the first pipe under the control of the water inlet pressure of the first pipe or its own weight to control the connection or cutoff between the first pipe and the second pipe and the opening or closing of the siphon air inlet. The switching valve is configured to move between a third position and a fourth position of the second pipe under the control of the water inlet pressure of the first end or the second end or its own weight to control the connection or cutoff between the first end or the second end and the water outlet. The opening or closing of the water outlet channel connected to the water outlet is controlled by the water supply solenoid valve.

[0010] Preferably, a connecting pipe connecting the first pipe and the first end is provided at the top of the first pipe and the second pipe, and the anti-siphon valve is provided in the connecting pipe and can move between a first position and a second position. At the first position, the first pipe is blocked to disconnect the first pipe, the first end and the connecting pipe and the siphon air inlet is opened. At the second position, the siphon air inlet is blocked to connect the first pipe, the first end and the connecting pipe.

[0011] Preferably, when water from the first water inlet pipe enters the first pipeline, the anti-siphon valve moves from the first position to the second position under the control of the water inlet pressure of the first pipeline.

[0012] Preferably, under the control of the water inlet pressure of the first end, the switching valve blocks the second end at the third position and connects the first end to the water outlet, and the water inlet of the first end flows from the water outlet to the water supply solenoid valve.

[0013] Preferably, when the water from the second water inlet pipe enters the second end, under the control of the water inlet pressure at the second end, the switching valve moves from the third position to the fourth position to block the first end and connect the second end to the water outlet, and the water from the second end flows from the water outlet to the water supply solenoid valve.

[0014] Preferably, the anti-siphon valve includes a first valve stem, which passes through the connecting pipe and extends into the anti-siphon cover, and can move along a first guide structure provided on the first pipe and / or the anti-siphon cover to switch and block the connection between the first pipe and the connecting pipe or the siphon air inlet.

[0015] Preferably, the switching valve includes a second valve stem, which can move along a second guide structure provided on the second pipe to switch and block the connection between the first end and the middle part or the connection between the second end and the middle part.

[0016] Preferably, the second valve stem includes a sealing portion arranged in the middle, and the second guide structure is a guide hole arranged at the connection between the first end and the middle portion and / or the connection between the second end and the middle portion, and the guide hole can accommodate the second valve stem to pass through and limit the sealing portion to the third position or the fourth position.

[0017] Preferably, the second valve stem includes a first sealing part and a second sealing part located at both ends and a guide plate in the middle. The second guide structure is a guide rib arranged on the second pipe. The guide plate follows the guide rib and limits the first sealing part and the second sealing part to the third position and the fourth position respectively.

[0018] Preferably, the upper end portion of the second water inlet pipe is connected to the second end portion by threads, and a pressure relief groove is provided on the upper end portion.

[0019] Preferably, the third position is set at the connection between the second water inlet pipe and the second end.

[0020] Preferably, the first water inlet pipe is a tap water inlet pipe, which is connected to the solenoid valve head; the second water inlet pipe is a pump boost water inlet pipe, which is used to connect to the water supply pump.

[0021] Preferably, the water supply solenoid valve includes a flushing solenoid valve and a brush ring solenoid valve, and the water outlet includes a first water outlet and a second water outlet respectively connected to the flushing solenoid valve and the brush ring solenoid valve.

[0022] A toilet comprises a toilet body and a water tank installed in the toilet body, a water supply pump and an electrically controlled flushing valve according to the above-mentioned integrated multi-channel water supply, wherein a first water inlet pipe is connected to the tap water supply, a second water inlet pipe is connected to the water tank and the water supply pump, and the water in the water tank is pumped into the second water inlet pipe through the water supply pump.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The electrically controlled flushing valve with integrated multi-channel water supply of the present invention can integrate tap water supply and pump-pressurized water supply in one module to meet the working requirements of the flushing valve under different circumstances. When there is mains power, the non-pressurized water in the water tank is pressurized by the water supply pump and supplied to the flushing valve for operation; when there is no mains power, the weak electricity stored in the electric control panel only plays the role of switching the solenoid valve, and the flushing valve relies on the pressure of the tap water to operate.

[0025] (2) The electrically controlled flushing valve with integrated multi-channel water supply of the present invention is provided with a separate siphon inlet above the first pipe, which not only prevents siphoning but also ensures that after the flushing process is completed, the pressurized water in the main water inlet pipe can flow back to the water tank from the second end in combination with the pressure relief groove at the upper end of the second water inlet pipe. After each flushing operation, the valve can be restored to its initial position, and the operation is consistent.

[0026] (3) The electrically controlled flushing valve with integrated multi-channel water supply of the present invention can push the switching valve up and down by tap water or pressurized water after pump boosting, so as to realize the selection and automatic switching of water channels. The switching valve has a small movement stroke and good guidance, and is provided with a pre-deformation gap of the water-stop rubber pad, so that the sealing of the upper end face or the lower end face is realized by the deformation of the water-stop rubber pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of an electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0028] Figure 2 A top view of an electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0029] Figure 3This is a side view of an electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0030] Figure 4 This is a front cross-sectional view of an electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0031] Figure 5 This is a left side cross-sectional view of the electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0032] Figure 6 This is a right side cross-sectional view of the electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0033] Figure 7 This is an exploded view of an electrically controlled flushing valve with integrated multi-channel water supply according to Example 1 of the present application;

[0034] Figure 8 This is an exploded view of the water inlet assembly of the electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0035] Figure 9 This is a front cross-sectional view of the water inlet main pipe of the electric-controlled flushing valve with integrated multi-channel water supply in the initial state of Example 1 of the present application;

[0036] Figure 10 This is a schematic diagram of water entering the first water inlet pipe of the electrically controlled flush valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0037] Figure 11 This is a side cross-sectional view of the water inlet main pipe of the electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0038] Figure 12 This is a schematic diagram of water entering the second water inlet pipe of the electrically controlled flush valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0039] Figure 13 This is a schematic diagram of a switching valve of an electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0040] Figure 14 This is a partial cross-sectional view of the water inlet main pipe of the electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0041] Figure 15 This is a schematic diagram of the second pipeline of the electrically controlled flushing valve with integrated multi-channel water supply according to the first embodiment of the present application;

[0042] Figure 16 This is a front cross-sectional view of an electrically controlled flushing valve with integrated multi-channel water supply according to the second embodiment of the present application;

[0043] Figure 17 This is a schematic diagram of a switching valve of an electrically controlled flushing valve with integrated multi-channel water supply according to the second embodiment of the present application;

[0044] Figure 18 A perspective view of a switching valve of an electrically controlled flushing valve with integrated multi-channel water supply according to a second embodiment of the present application;

[0045] Reference numerals: 1, water inlet assembly; 2, flush solenoid valve; 3, brush ring solenoid valve; 4, water inlet main pipe; 5, first water inlet pipe; 6, second water inlet pipe; 7, first pipe; 8, second pipe; 81, guide hole; 82, guide rib; 9, connecting pipe; 10, limiting ridge; 11, anti-siphon device; 12, anti-siphon valve; 13, first valve stem; 14, sealing seat; 15, anti-siphon cover; 16, siphon air inlet; 17. First end portion; 18. Second end portion; 19. Middle portion; 20. First water outlet; 21. Second water outlet; 22. Switching valve; 23. Second valve stem; 231. Sealing portion; 232. First sealing portion; 233. Second sealing portion; 234. Guide plate; 24. Water-stopping rubber pad; 25. Solenoid valve head; 26. First position; 27. Second position; 28. Third position; 29. ​​Fourth position; 30. Pressure relief groove. DETAILED DESCRIPTION

[0046] The present invention is further explained below with reference to the accompanying drawings and specific embodiments. The drawings are provided for illustrative purposes only to facilitate understanding of the present invention, and their specific proportions may be adjusted according to design requirements. Those skilled in the art will understand that the vertical relationships between components and the definitions of front and back in the figures described herein refer to the relative positions of components. Therefore, they can be flipped to present the same components, and all such representations are within the scope of this specification.

[0047] Example 1

[0048] refer to Figure 1-7 , an embodiment of the present application proposes an electrically controlled flushing valve with integrated multi-channel water supply, including a water inlet component 1 and at least one water supply solenoid valve, the water supply solenoid valve includes a flushing solenoid valve 2 and a brush ring solenoid valve 3, the water inlet component 1 includes a water inlet main pipe 4, a first water inlet pipe 5 and a second water inlet pipe 6, specifically, the first water inlet pipe 5 is a tap water inlet pipe, the tap water inlet pipe is connected to the solenoid valve head 25, the second water inlet pipe 6 is a pump boost water inlet pipe, the pump boost water inlet pipe is connected to the water supply pump. In other embodiments, the two water inlet pipes can also be interchanged or other types of water inlet pipes can be used, and the tap water inlet pipe and the pump boost water inlet pipe can be locked together with the water inlet main pipe 4 by bolt connection. Reference Figure 8The main water inlet pipe 4 includes a first pipe 7, a second pipe 8, and an anti-siphon device 11. The first pipe 7 and the second pipe 8 are connected to the first water inlet pipe 5 and the second water inlet pipe 6, respectively. Specifically, the first pipe 7 is integrated with the tap water inlet pipe, and the second pipe 8 is connected to the pump boost water inlet pipe via threads and a sealing ring. A partition is provided between the first pipe 7 and the second pipe 8, separating the first pipe 7 and the second pipe 8. The solenoid valve head 25 controls the tap water to flow through the tap water inlet pipe to the first pipe 7, and the water supply pump controls the pump boost water to flow from the pump boost water inlet pipe to the second pipe 8. An anti-siphon device 11 is disposed at the top of the first and second pipes 7, 8. The anti-siphon device 11 includes an anti-siphon valve 12 and an anti-siphon cover 15 having a siphon air inlet 16. The anti-siphon valve 12 is configured to move between a first position 26 and a second position 27 at the top of the first pipe 7 under the control of the water inlet pressure or its own weight, thereby controlling the connection or disconnection between the first and second pipes 7, 8, and the opening or closing of the siphon air inlet 16. The connection of the siphon air inlet 16 to the external atmospheric pressure achieves an anti-siphon effect within the main water inlet pipe 4.

[0049] In a specific embodiment, the second pipe 8 includes a first end 17, a second end 18, and an intermediate portion 19 located between the first end 17 and the second end 18. The first end 17 can be connected to the first pipe 7, and the second end 18 is connected to the second water inlet pipe 6. The intermediate portion 19 is provided with a water outlet connected to the water supply solenoid valve. The water outlet includes a first water outlet 20 and a second water outlet 21 connected to the flush solenoid valve 2 and the brush ring solenoid valve 3, respectively. A switching valve 22 is installed inside the intermediate portion 19. The switching valve 22 connects one of the first end 17 and the second end 18 to the water outlet of the intermediate portion 19. Since there are two water outlets, the switching valve 22 can be a three-way switching valve 22. The switching valve 22 is configured to move between the third position 28 and the fourth position 29 of the second pipe 8 under the control of the water inlet pressure of the first end 17 or the second end 18 or its own weight to control the conduction or cutoff between the first end 17 or the second end 18 and the water outlet, and control the opening or closing of the water outlet channel connected to the water outlet through the water supply solenoid valve.

[0050] In a specific embodiment, reference Figure 9-10 A connecting pipe 9 is provided at the top of the first pipe 7 and the second pipe 8, connecting the first pipe 7 and the first end portion 17. The connecting pipe 9 connects the first pipe 7 and the second pipe 8, and the tap water in the first pipe 7 can flow into the second pipe 8. The anti-siphon valve 12 is provided in the connecting pipe 9 and can move between a first position 26 and a second position 27. At the first position 26, the anti-siphon valve 12 blocks the first pipe 7, disconnects the first pipe 7, the first end portion 17 and the connecting pipe 9, and opens the siphon air inlet 16. In the embodiment of the present application, reference is made to Figure 9 and 11 In the initial state of the electrically controlled flush valve, the anti-siphon valve 12 is in the first position 26, and the switching valve 22 is in the third position 28. In this initial state, the siphon air inlet 16 is open, and the air pressure inside the main water inlet pipe 4 is the same as the external atmospheric pressure. Under the action of their own weight, the anti-siphon valve 12 and the switching valve 22 are in the first position 26 and the third position 28, respectively. In the second position 27, the anti-siphon valve 12 blocks the siphon air inlet 16 and connects the first pipe 7, the first end 17, and the connecting pipe 9. When water from the first water inlet pipe 5 enters the first pipe 7, the anti-siphon valve 12 moves from the first position 26 to the second position 27 under the control of the water inlet pressure of the first pipe 7. Specifically, the anti-siphon valve 12 includes a first valve stem 13, which extends from the connecting pipe 9 and into the anti-siphon cover 15. The first valve stem 13 can move along a first guide structure provided on the first pipe 7 and / or the anti-siphon cover 15 to switch between blocking the connection between the first pipe 7 and the connecting pipe 9 or the siphon air inlet. The first guide structure can be provided on the first pipe 7 and / or the anti-siphon cover 15. Specifically, the first guide structure includes two guide holes on the first pipe 7 and the anti-siphon cover 15. The first valve stem 13 can pass through the two guide holes and move along the guide paths of the two guide holes. In other embodiments, the first guide structure can also be other structures. Specifically, it also includes a sealing seat 14 located at the end of the first valve stem 13. The sealing seat 14 provides the anti-siphon valve 12 with a better sealing effect. One surface of the sealing seat 14 can block the connection between the first pipe 7 and the connecting pipe 9, and the other surface can block the siphon air inlet 16. Specifically, the spacer is flush with the top of the first pipe 7, and the anti-siphon cover 15 is provided with a limiting end portion for accommodating the first valve stem 13 to pass through and perform limiting movement, Figure 9 When the anti-siphon valve 12 is located at the first position 26, the lower surface of the sealing seat 14 abuts against the top of the first pipe 7 and the partition plate, Figure 10 When the water from the first water inlet pipe 5 enters the first pipe 7, the anti-siphon valve 12 moves from the first position 26 to the second position 27 under the control of the water inlet pressure of the first pipe 7. When the anti-siphon valve 12 is in the second position 27, a sealing gasket is provided on the other surface of the sealing seat 14. The sealing gasket abuts against the limiting end of the anti-siphon cover 15 and blocks the siphon air inlet 16. At this time, the first pipe 7, the connecting pipe 9 and the first end 17 of the second pipe 8 are connected, and the tap water in the first pipe 7 can flow to the first end 17 through the connecting pipe 9. The anti-siphon air outlet 16 is provided above the first pipe 7, which not only plays an anti-siphon role, but also ensures that after the flushing process is completed, the pressurized water in the water inlet main pipe 4 flows back to the water tank from the second pipe 8. After each flushing action is completed, it can return to the initial position, and the action consistency is good.

[0051] In a specific embodiment, reference Figure 9 and 10 Under the control of the water inlet pressure at the first end 17, the switching valve 22 is at the third position 28, blocking the second end 18 and connecting the first end 17 to the water outlet. The water inlet at the first end 17 flows from the water outlet to the water supply solenoid valve. When the water inlet from the second water inlet pipe 6 enters the second end 18, under the control of the water inlet pressure at the second end 18, the switching valve 22 moves from the third position 28 to the fourth position 29, blocking the first end 17 and connecting the second end 18 to the water outlet. The water inlet at the second end 18 flows from the water outlet to the water supply solenoid valve. When the tap water in the tap water inlet pipe enters the first pipe 7, it pushes the anti-siphon valve 12 from the first position 26 to the second position 27, and the first pipe 7 is connected to the first end 17 of the second pipe 8. The tap water in the first pipe 7 flows to the first end 17, generating water inlet pressure at the first end 17, pressing the switching valve 22 downward to block the second end 18, and the tap water flows through the first water outlet 20 and the second water outlet 21 to the flush solenoid valve 2 and the brush ring solenoid valve 3 respectively. Flushing and brushing are achieved by controlling the opening and closing of the flush solenoid valve 2 and the brush ring solenoid valve 3. Figure 12 When the pressurized water in the pump-boosted water inlet pipe enters the second end 18 of the second pipe 8, it pushes the switching valve 22 from the third position 28 to the fourth position 29, blocking the first end 17. The pump-boosted water then flows through the first and second water outlets 20 and 21, respectively, to the flush solenoid valve 2 and the brush ring solenoid valve 3. Flushing and brushing are achieved by controlling the opening and closing of the flush solenoid valve 2 and the brush ring solenoid valve 3. The pressure of tap water or pump-boosted water pushes the switching valve 22 up and down, enabling water path selection and automatic switching.

[0052] In a specific embodiment, reference Figure 13The switching valve 22 includes a second valve stem 23, which can move along a second guide structure provided on the second pipe 8 to switch between blocking the connection between the first end portion 17 and the middle portion 19 or the connection between the second end portion 18 and the middle portion 19. The second valve stem 23 includes a central blocking portion 231. The second guide structure is a guide hole 81 provided on the second pipe 8. The guide hole 81 accommodates the second valve stem 23 and allows the blocking portion 231 to be positioned in either the third position 28 or the fourth position 29. Specifically, the blocking portion 231 is provided with a plurality of water-stopping rubber pads 24, which are sleeved on the blocking portion 231. Pre-deformation gaps A are defined between adjacent water-stopping rubber pads 24. A limiting ridge 10 is provided at the connection between the middle portion 19 and the first end portion 17, which can limit the water-stopping rubber pads 24 to the fourth position 29, as well as a guide hole 81 for accommodating the second valve stem 23. The third position 28 is set at the connection between the second water inlet pipe 6 and the second end 18, and can also form a limiting rib 10 and a guide hole 81 to further stabilize the movement of the second valve stem 23 in the second pipe 8. In a preferred embodiment, the water-stop rubber pad 24 is a one-way water-stop rubber pad 24, which acts on the limiting rib 10 or the connection between the second water inlet pipe 6 and the second end 18 to seal the first end 17 or the second end 18. The pre-deformation gap A allows the water-stop rubber pad 24 to have a certain deformation space, so that it deforms under pressure, which can achieve a better sealing effect and prevent tap water from flowing into the water tank from the second pipe 8. Figure 14 The limiting rib 10 is smooth and complete without any gaps. Therefore, after the water-stop rubber pad 24 is deformed under pressure, it is in close contact with the limiting rib 10, which can achieve a good sealing effect and prevent the pump-pressurized water from flowing back into the first end 17 and overflowing from the siphon air inlet 16. After the water pumping is completed, the pump-pressurized water inside the water inlet main pipe 4 gradually flows into the water tank through the pump-pressurized water inlet pipe. According to the principle of the connector, the pressure inside the water inlet main pipe 4 is equal to the atmospheric pressure, and the switching valve 22 falls to the third position 28 by its own weight. The water inlet main pipe 4 is provided with a guide hole for the second valve stem 23 of the switching valve 22 and a limiting structure for the water-stop rubber pad 24, which has a small movement stroke and good guidance. A pre-deformation gap A is designed on the switching valve 22, and the sealing of the two end faces is achieved by the deformation of the water-stop rubber pad 24.

[0053] In a specific embodiment, reference Figure 15 The upper end of the second water inlet pipe 6 is threadedly connected to the second end 18 and is provided with a pressure relief groove 30. Specifically, the pressure relief groove 30 is a notch. When the tap water intake is completed, the remaining tap water in the main water inlet pipe 4 can gradually flow into the water tank through the pressure relief groove 30. According to the coupling principle, the pressure inside the main water inlet pipe 4 is equal to atmospheric pressure. The siphon inlet 16 replenishes air, and the anti-siphon valve 12 drops to the first position 26 by its own weight, returning to its initial state.

[0054] The electric-controlled flush valve with integrated multi-channel water supply in the embodiment of the present application can provide water inlet through multiple channels and provide water outlet with multiple functions through multiple water supply solenoid valves. The following uses the water inlet of the tap water channel and the water inlet of the pump boost water channel as examples to explain the specific water supply process:

[0055] (1) Water inflow through the tap water channel: When the signal controls the solenoid valve head 25 corresponding to the tap water inlet pipe to open, tap water enters the water inlet main pipe 4 through the tap water inlet pipe. The tap water pressure pushes the anti-siphon valve 12 upward until the siphon air inlet 16 is closed. Furthermore, the tap water presses the switching valve 22 downward until the water-stop rubber gasket 24 is deformed and pressed against the upper end of the pump boost water inlet pipe. The tap water enters the middle part 19 along the first end 17 and flows to the flushing solenoid valve 2 and the brush ring solenoid valve 3 respectively. The flushing and brushing are realized by program-controlled opening and closing of the flushing solenoid valve 2 and the brush ring solenoid valve 3. After the water inflow is completed, the tap water inside the water inlet main pipe 4 and between the water-stop rubber gasket 24 and the switching valve 22 gradually flows into the water tank through the pressure relief groove 30 on the upper end face of the pump boost water inlet pipe. According to the coupling principle, the pressure inside the water inlet main pipe 4 is equal to the atmospheric pressure. The siphon air inlet 16 replenishes air and the anti-siphon valve 12 falls back to its original position by its own weight. When there is no mains electricity, the weak electricity stored in the electric control panel only plays the role of switching the solenoid valve and cannot supply the water supply pump. Therefore, the electric flushing valve relies on the pressure of tap water to work.

[0056] (2) Water inlet of the pump-boosted water channel: The input signal controls the water supply pump to start, and the pump-boosted water enters the water inlet main pipe 4 through the pump-boosted water inlet pipe. Under the action of the water inlet pressure of the pump-boosted water, the switching valve 22 moves upward until the first end 17 is completely closed. The pump-boosted water enters the middle part 19 along the second end 18 and flows to the flushing solenoid valve 2 and the brush ring solenoid valve 3 respectively. The flushing and brushing are realized by program-controlled opening and closing of the flushing solenoid valve 2 and the brush ring solenoid valve 3. After the water pumping is completed, the pump-boosted water between the inside of the water inlet main pipe 4 and the switching valve 22 gradually flows into the water tank through the pump-boosted water inlet pipe. According to the principle of the connector, the water inlet main pipe 4 is equal to the atmospheric pressure, and the switching valve 22 falls and resets according to its own weight. When there is mains power, the non-pressurized water in the water tank is pressurized by the water supply pump and becomes pump-boosted water to supply the electronically controlled flushing valve.

[0057] An embodiment of the present application also proposes a toilet, including a toilet body and a water tank installed in the toilet body, a water supply pump, and an electrically controlled flushing valve according to the above-mentioned integrated multi-channel water supply. The first water inlet pipe 5 is connected to the tap water supply. The first water inlet pipe 5 is connected to the tap water, and the anti-siphon valve 12 and the switching valve 22 are pushed under the water pressure of the tap water. The second water inlet pipe 6 is connected to the water tank and the water supply pump. The water in the water tank is pumped into the second water inlet pipe 6 through the water supply pump, so that there is pump-pressurized water in the second water inlet pipe 6, providing pressure to push the switching valve 22, so that the flushing and brushing functions can be achieved in different situations.

[0058] Example 2

[0059] The difference between the second embodiment of the present application and the first embodiment lies in the different structures of the switching valve 22 and the second guide structure. Specifically, the second valve stem 23 includes a first blocking portion 232 and a second blocking portion 233 at both ends and a guide plate 234 in the middle. The second guide structure is a guide rib 82 provided on the second pipe 8. The guide plate 234 is along the guide rib 82 and limits the first blocking portion 232 and the second blocking portion 233 to the third position 28 and the fourth position 29 respectively. At this time, when in the third position 28, the second blocking portion 233 is at the bottom of the second pipe 8, and the first blocking portion 232 is at the position where the first water outlet 20 and the second water outlet 21 are connected. At the bottom, the pump-pressurized water coming in from the first water inlet pipe 5 can push the second valve stem 23 to the third position 28, ensuring that tap water can enter the first water outlet 20 and the second water outlet 21. At the fourth position 29, the first sealing portion 232 is at the top of the second pipe 8, and the second sealing portion 233 is above the position where the first water outlet 20 and the second water outlet 21 are connected. The pump-pressurized water coming in from the second water inlet pipe 6 can push the second valve stem 23 to the fourth position 29, ensuring that the pump-pressurized water can enter the first water outlet 20 and the second water outlet 21. Furthermore, a plurality of water-stopping rubber pads 24 are provided on the first sealing portion 232 and the second sealing portion 233. The water-stopping rubber pads 24 are sleeved on the first sealing portion 232 and the second sealing portion 233, and a pre-deformed gap is provided between adjacent water-stopping rubber pads 24 to improve sealing. The guide plate 234 not only forms a guiding connection with the guide rib 82, but also prevents dirty water and jamming.

[0060] The above embodiments are only used to further illustrate the technical solutions of the present invention, but 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 fall within the protection scope of the technical solutions of the present invention.

Claims

1. An electrically controlled flushing valve with integrated multi-channel water supply, characterized by: The invention also provides a method for controlling the flow of water from the water inlet to the outlet, wherein the water inlet is connected to the outlet of the water supply solenoid valve and the water inlet is connected to the outlet of the water supply solenoid valve. The switching valve is configured to move between a first position and a second position at the top of the first pipe under the control of its own weight to control the connection or disconnection between the first pipe and the second pipe and the opening or closing of the siphon air inlet. The switching valve is configured to move between a third position and a fourth position of the second pipe under the control of the water inlet pressure of the first end or the second end or its own weight to control the connection or disconnection between the first end or the second end and the water outlet, and to control the opening or closing of the water outlet channel connected to the water outlet through the water supply solenoid valve. Under the control of the water inlet pressure of the first end, the switching valve blocks the second end at the third position and connects the first end with the water outlet, so that the water inlet of the first end flows from the water outlet to the water supply solenoid valve. When the water from the second water inlet pipe enters the second end, under the control of the water inlet pressure of the second end, the switching valve moves from the third position to the fourth position to block the first end and connect the second end to the water outlet, and the water from the second end flows from the water outlet to the water supply solenoid valve.

2. The electrically controlled flushing valve with integrated multi-channel water supply according to claim 1, characterized in that: A connecting pipe connecting the first pipe and the first end portion is provided at the top of the first pipe and the second pipe. The anti-siphon valve is provided in the connecting pipe and can move between the first position and the second position. At the first position, the first pipe is blocked to disconnect the first pipe, the first end portion and the connecting pipe and open the siphon air inlet. At the second position, the siphon air inlet is blocked to connect the first pipe, the first end portion and the connecting pipe.

3. The electrically controlled flushing valve with integrated multi-channel water supply according to claim 2, characterized in that: When water from the first water inlet pipe enters the first pipeline, the anti-siphon valve moves from the first position to the second position under the control of the water inlet pressure of the first pipeline.

4. The electrically controlled flushing valve with integrated multi-channel water supply according to claim 2, characterized in that: The anti-siphon valve includes a first valve stem, which passes through the connecting pipe and extends into the anti-siphon cover, and can move along a first guide structure provided on the first pipe and / or the anti-siphon cover to switch and block the connection between the first pipe and the connecting pipe or the siphon air inlet.

5. The electrically controlled flushing valve with integrated multi-channel water supply according to claim 1, characterized in that: The switching valve includes a second valve stem, and the second valve stem can move to the third position or the fourth position along a second guide structure provided on the second pipe.

6. The electrically controlled flushing valve with integrated multi-channel water supply according to claim 5, characterized in that: The second valve stem includes a sealing portion arranged in the middle, and the second guide structure is a guide hole arranged at the connection between the first end and the middle portion and / or the connection between the second end and the middle portion. The guide hole can accommodate the second valve stem to pass through and limit the sealing portion to the third position or the fourth position.

7. The electrically controlled flushing valve with integrated multi-channel water supply according to claim 5, characterized in that: The second valve stem includes a first sealing part and a second sealing part at both ends and a guide plate in the middle. The second guide structure is a guide rib provided on the second pipe. The guide plate is along the guide rib and limits the first sealing part and the second sealing part to the third position and the fourth position respectively.

8. The electrically controlled flushing valve with integrated multi-channel water supply according to claim 1, characterized in that: The upper end portion of the second water inlet pipe is connected to the second end portion by a thread, and a pressure relief groove is provided on the upper end portion.

9. The electrically controlled flushing valve with integrated multi-channel water supply according to claim 1, characterized in that: The third position is set at the connection between the second water inlet pipe and the second end.

10. The electrically controlled flushing valve with integrated multi-channel water supply according to claim 1, characterized in that: The first water inlet pipe is a tap water inlet pipe, which is connected to the solenoid valve head. The second water inlet pipe is a pump pressurized water inlet pipe, which is used to connect to the water supply pump.

11. The electrically controlled flushing valve with integrated multi-channel water supply according to claim 1, characterized in that: The water supply solenoid valve includes a flushing solenoid valve and a brush ring solenoid valve, and the water outlet includes a first water outlet and a second water outlet respectively connected to the flushing solenoid valve and the brush ring solenoid valve.

12. A toilet, characterized in that: It includes a toilet body and a water tank installed in the toilet body, a water supply pump and an electrically controlled flushing valve with integrated multi-channel water supply according to any one of claims 1-11, the first water inlet pipe is connected to the tap water supply, the second water inlet pipe is connected to the water tank and the water supply pump, and the water in the water tank is pumped into the second water inlet pipe through the water supply pump.

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