A first switching valve, a toilet, a flushing system and a flushing method thereof

Abstract

The application discloses a first switching valve, a closestool, a flushing system and a flushing method thereof. The first switching valve comprises a valve body, a floating valve core arranged in a valve cavity of the valve body, and a reset device. The floating valve core is capable of moving in the valve cavity in a direction away from a water inlet of the valve cavity under the action of water flow entering a water inlet of the valve body. The reset device provides an acting force for the floating valve core to move in the direction of the water inlet.

Description

TECHNICAL FIELD

[0001] The present application relates to toilet cleaning technology, in particular to a first switching valve, a toilet, a flushing system and a flushing method thereof. BACKGROUND

[0002] At present, intelligent toilets with water pump flushing systems are favored by consumers due to their stable flushing performance. The flushing performance can meet the flushing under high water pressure of a water supply pipeline and is not affected by water pressure fluctuations of a water supply pipeline under low water pressure. Under normal working conditions, it is a relatively ideal flushing method.

[0003] However, this type of flushing system also has some disadvantages, of which the most prominent is high production and maintenance costs. SUMMARY

[0004] The present application provides a first switching valve, a toilet, a flushing system and a flushing method thereof, which can reduce production and maintenance costs.

[0005] The present application provides a first switching valve, comprising:

[0006] a valve body provided with a valve cavity, the inner wall of the valve cavity being provided with a water inlet, a first water outlet and a second water outlet;

[0007] a floating valve core arranged in the valve cavity and configured to move in the valve cavity in a direction away from the water inlet under the action of water flow entering the water inlet, the floating valve core having a first working state of blocking the first water outlet and a second working state of blocking the second water outlet;

[0008] a reset device arranged in the valve cavity and providing an action force for the floating valve core to move in the direction of the water inlet; under the combined action of the change of water pressure of the water inlet and the action force of the reset device, the floating valve core can move in the direction away from the water inlet and the direction close to the water inlet to switch the first working state and the second working state.

[0009] In an exemplary embodiment, the floating valve core has a separation portion for blocking or opening the first water outlet and a stop portion for blocking or opening the second water outlet;

[0010] When the floating valve core is in the first working state, the separation portion opens the first water outlet, the stop portion blocks the second water outlet, and the water inlet and the first water outlet are communicated;

[0011] When the floating valve core is in the second working state, the separation portion blocks the first water outlet, the stop portion opens the second water outlet, and the water inlet and the second water outlet are communicated.

[0012] In one example embodiment, the first water outlet and the second water outlet are arranged on the inner wall of the valve cavity within the movement path range of the floating valve core, the second water outlet is closer to the water inlet than the first water outlet, and the cross-sectional area of the first water outlet is smaller than that of the second water outlet.

[0013] In one example embodiment, the reset device is a reset spring, one end of the reset spring abuts against the floating valve core, and the other end of the reset spring abuts against the inner wall of the valve cavity.

[0014] The present application provides a flushing system, comprising:

[0015] A first water supply path, a water inlet end of which is arranged to be connected with a water tank, the first water supply path being provided with a pressure boosting device;

[0016] A brush circle water path and a first jet water path, a water outlet end of the brush circle water path being arranged to be connected with a brush circle interface of a toilet, and a water outlet end of the first jet water path being arranged to be connected with a siphon jet port of the toilet;

[0017] A first switching valve according to any of the above embodiments, a water inlet of the first switching valve being connected with the water outlet end of the first water supply path, a first water outlet of the first switching valve being connected with the brush circle water path, and a second water outlet of the first switching valve being connected with the first jet water path.

[0018] In one example embodiment, the flushing system further comprises a control device electrically connected with the pressure boosting device, the control device being arranged to control the water pressure of the first water supply path by controlling the duty cycle of the pressure boosting device;

[0019] When the control device controls the duty cycle of the pressure boosting device to be a first duty cycle, the water pressure of the water inlet is greater than the force provided by the reset device, and the floating valve core switches to the first working state;

[0020] When the control device controls the duty cycle of the pressure boosting device to be a second duty cycle smaller than the first duty cycle, the water pressure of the water inlet is smaller than the force provided by the reset device, and the floating valve core switches to the second working state.

[0021] In one example embodiment, the flushing system further comprises a second switching valve, the second switching valve comprising:

[0022] A valve body provided with a valve inner cavity, the inner wall of the valve inner cavity being provided with a first water inlet port, a second water inlet port and a water outlet port, the first water inlet port, the second water inlet port and the water outlet port being arranged along the circumference of the valve inner cavity;

[0023] A shutter is arranged in the valve inner cavity and has a first operating state of blocking the first water inlet port and a second operating state of blocking the second water inlet port, the shutter is arranged to be able to rotate under the action of water flow entering the first water inlet port or the second water inlet port to switch the first operating state and the second operating state.

[0024] The flushing system further comprises a second water supply channel for connecting with a municipal water source, the first water inlet port of the second switching valve is connected with the second water supply channel, the second water inlet port of the second switching valve is connected with the first water outlet of the first switching valve, and the water outlet port of the second switching valve is connected with the brush circle water channel.

[0025] In an exemplary embodiment, the flushing system further comprises a second switching valve, the second switching valve comprises:

[0026] A valve body is provided with a valve inner cavity, the inner wall of the valve inner cavity is provided with a first water inlet port, a second water inlet port and a water outlet port, the opening direction of the first water inlet port is opposite to the opening direction of the second water inlet port, so that the water flow directions entering the valve inner cavity from the first water inlet port and the second water inlet port are opposite;

[0027] A floating member is arranged in the valve inner cavity and has a first operating state of blocking the first water inlet port and a second operating state of blocking the second water inlet port, the floating member is arranged to be able to move in the valve inner cavity along the opposite directions of the first water inlet port and the second water inlet port under the action of water flow entering the first water inlet port or the second water inlet port to switch the first operating state and the second operating state;

[0028] The flushing system further comprises a second water supply channel for connecting with a municipal water source, the first water inlet port of the second switching valve is connected with the second water supply channel, the second water inlet port of the second switching valve is connected with the first water outlet of the first switching valve, and the water outlet port of the second switching valve is connected with the brush circle water channel.

[0029] In an exemplary embodiment, the flushing system further comprises a second jet water channel and a control valve arranged in the first water supply channel and used for controlling the on-off of the second water supply channel;

[0030] The control valve divides the second water supply channel into a first water supply branch connected with the first water inlet port of the second switching valve and a second water supply branch connected with the water inlet end of the second jet water channel, and the control device is electrically connected with the control valve.

[0031] The booster device is configured to be connected with a municipal power supply, and when power is cut off, the control device controls the control valve to switch the water supply of the first water supply branch and the second water supply branch to switch the working state of the flushing system.

[0032] The application provides a toilet, comprising a toilet body having a rim interface and a siphon jet interface, and the flushing system according to any of the above embodiments.

[0033] The application provides a flushing method applied to the flushing system according to any of the above embodiments, and the method comprises the following steps.

[0034] When it is detected that the water pressure of the second water supply path is lower than a predetermined value, the water supply of the first water supply path is controlled and the booster device is operated, the first switching valve is switched to the first working state, the second switching valve is switched to the first operating state, and first rim cleaning is performed.

[0035] After the first rim cleaning, the water supply of the first water supply path and the second water supply path is controlled and the booster device is operated, the first switching valve is switched to the second working state, the second switching valve is switched to the second operating state, and rim and jet combined cleaning is performed.

[0036] After the rim and jet combined cleaning, the water supply of the first water supply path is controlled and the booster device is operated, the first switching valve is switched to the first working state, the second switching valve is switched to the first operating state, and second rim cleaning is performed.

[0037] In an example embodiment, the flushing method comprises:

[0038] When the water pressure of the second water supply path is higher than or equal to a predetermined value, the water supply of the second water supply path is controlled and the booster device is closed, the second switching valve is switched to the second operating state, and first rim cleaning is performed.

[0039] After the first rim cleaning, the water supply of the first water supply path and the second water supply path is controlled and the booster device is operated, the first switching valve is switched to the second working state, the second switching valve is switched to the first operating state, and rim and jet combined cleaning is performed.

[0040] After the rim and jet combined cleaning, the water supply of the second water supply path is controlled and the booster device is closed, the second switching valve is switched to the second operating state, and second rim cleaning is performed.

[0041] Compared with the related art, the switching valve of the application embodiment can switch between different water outlets based on the change of the water inlet pressure of the water inlet, avoid using electromagnetic valves and motors, and does not need to additionally arrange a power supply, so that the structure is simple, the water demand of the jet water and the rim water of the toilet is met, and the production and maintenance costs are reduced.

[0042] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application can be realized and obtained by means of the solutions described in the description and the accompanying drawings. Attached Figure Description

[0043] The accompanying drawings are used to provide an understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0044] Figure 1 This is a partial exploded perspective view of the toilet according to an embodiment of this application;

[0045] Figure 2 This is a piping connection diagram of the flushing system according to the first embodiment of this application.

[0046] Figure 3 This is an internal view of the first switching valve in the second operating state according to an embodiment of this application;

[0047] Figure 4 This is an internal view of the first switching valve in a first operating state according to an embodiment of this application;

[0048] Figure 5 This is a piping connection diagram of the flushing system according to a second embodiment of this application.

[0049] Figure 6 This is an exploded perspective view of the first type of second switching valve according to an embodiment of this application;

[0050] Figure 7 This is a perspective view of the gate of the first type of second switching valve according to an embodiment of this application;

[0051] Figure 8 This is a cross-sectional view of the first type of second switching valve according to an embodiment of this application;

[0052] Figure 9 This is a schematic diagram showing the switching states of the gate of the first type of second switching valve according to an embodiment of this application;

[0053] Figure 10 This is a piping connection diagram of the second switching valve in a second embodiment of the present application connected to the flushing system in a second embodiment.

[0054] Figure 11 This is an exploded perspective view of the second type of second switching valve according to an embodiment of this application;

[0055] Figure 12 This is a first operating state view of the second type of second switching valve according to an embodiment of this application;

[0056] Figure 13 Second operating state view of the second switching valve of the second embodiment of the present application;

[0057] Figure 14 Silent flushing flow chart of the flushing system of the second embodiment of the present application.

[0058] Reference signs: toilet - 100; water tank - 2; flushing system - 3, 3a; basin body - 11; sewage passage - 12; flushing system - 3; first water supply waterway - 31; second water supply waterway - 32; rim waterway - 33; first jet waterway - 34; first switching valve - 35; pressure boosting device - 36; second switching valve - 37, 37a; control valve - 38; second jet waterway - 39; valve body - 351; floating valve core - 352; reset device - 353; valve cavity - 3510; water inlet - 3511; first water outlet - 3512; second water outlet - 3513; separation part - 3521; stop part - 3522; valve body - 370, 370a; valve inner cavity - 371, 371a; first water inlet port - 3711, 3711a; second water inlet port - 3712, 3712a; water outlet port - 3713, 3713a; shutter - 372; first limiting part; second limiting part; fitting part - 3703; first end - 3721; second end - 3722; notch - 3723; first positioning rib - 373; second positioning rib - 374; valve body - 370A; valve cover - 370B; floating member - 372a; first water stop surface - A; second water stop surface - B; guide cavity - 3701a; first sealing surface - C; second sealing surface - D; first sealing gasket - 3724a; second sealing gasket - 3725a; sealing part - 3723a; extension part - 3726a; limiting cavity - 3702a; first valve body - 370C; second valve body - 370D; limiting cavity - 3702a; first water supply branch - 321; second water supply branch - 322; rim jet - 41; siphon jet - 42. DETAILED DESCRIPTION

[0059] As shown in Figures 1-12 , the present application provides a toilet 100, which comprises a toilet body 1, a water tank 2, and a flushing system 3. The toilet 100 can be used for jet siphon type intelligent toilet, which can be floor type or wall-hanging type. The present embodiment takes the floor type toilet 100 as an example for detailed description.

[0060] As shown in Figure 1As shown, the toilet body 1 includes a basin 11 and a drain channel 12 connected to the basin 11. The drain channel (not shown) is used to connect to the drainage system. The basin 11 includes a water seal area (not shown) connected to the drain channel 12. The water seal area is used to store a water column of a certain height to resist changes in air pressure difference within the drain channel 12 and prevent gas in the drain channel 12 from entering the room.

[0061] The toilet body 1 is provided with a brush ring interface (not shown) and a siphon jet nozzle (not shown) communicating with the basin 11. The brush ring interface 1 is located at the upper part of the basin 11, and the siphon jet nozzle is located at the lower part of the basin 11, in the water seal area. In this embodiment, the water tank 2 is designed separately from the toilet body 1. In other embodiments, the water tank 2 may also be integrated into the toilet body 1, which is not limited here.

[0062] As shown in Figure 3, the flushing system 3 of this application embodiment includes a first water supply path 31, a brush ring water path 33, a first jet water path 34, and a first switching valve 35.

[0063] In this embodiment, the inlet of the first water supply path 31 is connected to the water tank 2, and the first water supply path 31 is equipped with a booster device 36. In this embodiment, the booster device 36 is a water pump, but an air pump can also be used; it is not limited here. The flushing system 3 also includes a control device electrically connected to the booster device 36, which can control the opening and closing of the booster device 36.

[0064] The outlet of the brush ring water path 33 is configured to connect to the brush ring interface of the toilet body 1, providing flushing water for the brush ring of the toilet body 1. The outlet of the first jet water path 34 is configured to connect to the siphon jet port of the toilet body 1, providing a jet of water to generate a siphon effect for waste discharge.

[0065] like Figures 3-4 As shown, the first switching valve 35 includes: a valve body 351, a floating valve core 352, and a reset device 353. The valve body 351 is provided with a valve cavity 3510, and the inner wall of the valve cavity 3510 is provided with an inlet 3511, a first outlet 3512, and a second outlet 3513.

[0066] The floating valve core 352 is disposed in the valve cavity 3510 and is configured to move in the valve cavity 3510 away from the inlet 3511 under the action of the water flow entering the inlet 3511. The floating valve core 352 has a first working state of blocking the first outlet 3512 and a second working state of blocking the second outlet 3513.

[0067] The reset device 353 is arranged in the valve cavity 350 and provides a force for moving the floating valve core 352 towards the water inlet 3511. The floating valve core 352 can move in the direction away from the water inlet 3511 and the direction close to the water inlet 3511 under the joint action of the water pressure change of the water flow of the water inlet 3511 and the force of the reset device 353 (as indicated by the arrow direction) to switch the first working state and the second working state. Figure 3

[0068] As shown in Figure 3 , Figure 4 , the floating valve core 352 has a partition 3521 for blocking or opening the first water outlet 3512 and a stop 3522 for blocking or opening the second water outlet 3513. When the floating valve core 352 is in the first working state (as shown in Figure 4 ), the partition 3521 opens the first water outlet 3512 and the stop 3522 blocks the second water outlet 3513, and the water inlet 3511 and the first water outlet 3512 are communicated; when the floating valve core 352 is in the second working position (as shown in Figure 3 ), the partition 3521 blocks the first water outlet 3512 and the stop 3522 opens the second water outlet 3513, and the water inlet 3511 and the second water outlet 3513 are communicated. The partition 3521 divides the valve cavity 3510 into two parts to ensure that the water flow of the first water outlet 3512 and the second water outlet 3513 is balanced.

[0069] As shown in Figure 3 , the first water outlet 3512 and the second water outlet 3513 are arranged on the inner wall of the valve cavity 3510 within the movement path range of the floating valve core 352, and the second water outlet 3513 is closer to the water inlet 3511 than the first water outlet 3112, so that adjusting the water pressure of the water inlet 3511 adjusts the distance of pushing the floating valve core 352 to switch the first water outlet 3112 and the second water outlet 3513.

[0070] The cross-sectional area of the first water outlet 3512 is smaller than that of the second water outlet 3513, so that the water flow of the first water outlet 3512 is smaller than that of the second water outlet 3513, which meets the requirements of different water flow of different water paths and expands its adaptation range. In particular, it meets the different requirements of the water flow of the flushing circle water path 33 and the jet water path 34 during the flushing process of the closestool 1.

[0071] As shown in Figure 3 ​As shown, the reset device 353 in this embodiment employs a reset spring, with one end abutting against the floating valve core 352 and the other end abutting against the inner wall of the valve cavity 3510. When the first switching valve 35 is in its first operating state, the water pressure at the inlet 3511 is greater than the force of the reset spring, and the reset spring is compressed; when the first switching valve 35 is in its second operating state, the water pressure at the inlet 3511 is less than the force of the reset spring, and the reset spring pushes the floating valve core 352 to reset.

[0072] The switching valve 36 of this application embodiment can switch between different outlets based on the change of inlet water pressure at the inlet 3511, avoiding the use of solenoid valves and motors, eliminating the need for additional power supply, and having a simple structure. It meets the water demand of the toilet 1 for jet water and brush ring water while reducing production and maintenance costs.

[0073] In one exemplary embodiment, the control device is configured to control the water pressure of the first water supply circuit 31 by controlling the duty cycle of the booster device 36. When the control device controls the duty cycle of the booster device 36 to a first duty cycle, and the water pressure at the inlet 3511 is greater than the force provided by the reset device 353, the floating valve core 352 switches to a first operating state; when the control device controls the duty cycle of the booster device 36 to a second duty cycle that is less than the first duty cycle, and the water pressure at the inlet 3511 is less than the force provided by the reset device 353, the floating valve core 352 switches to a second operating state.

[0074] like Figure 3 As shown, the inlet 3511 of the first switching valve 35 is connected to the outlet of the first water supply circuit 31, the first outlet 3512 is connected to the brush ring water circuit 33, and the second outlet 3513 is connected to the first jet water circuit 34.

[0075] When the flushing system 3 is operating, the control device controls the pressurization device 36 to run, and the first switching valve 35 switches to the first operating state to perform the initial brush ring cleaning. After the initial brush ring cleaning, the control device controls the pressurization device 36 to run, and the first switching valve 35 switches to the second operating state, and the system performs spray cleaning. After spray cleaning, the control device controls the pressurization device 36 to run, and the first switching valve 35 switches to the first operating state to perform brush ring cleaning again.

[0076] like Figure 5As shown, the flushing system 3a of the second embodiment provided by the present application comprises a first water supply channel 31 and a second water supply channel 32, a brush circle water channel 33 and a first jet water channel 34, and a first switching valve 35. The first water supply channel 31 is provided with a booster 36. The flushing system 3 of the present embodiment is mainly different from the flushing system 3a of the first embodiment in that the flushing system 3a of the present embodiment further comprises the second water supply channel 32. The water inlet end of the second water supply channel 32 is arranged to be connected with the municipal water source, so as to realize two water supply modes of tap water supply and water tank 2 increase, thereby providing multiple flushing modes.

[0077] The flushing system 3a of the present embodiment is mainly different from the flushing system of the first embodiment in that the present embodiment further comprises a second water channel switching valve 37.

[0078] As shown, Figures 6-9 In an exemplary embodiment, the second switching valve 37 comprises a valve body 370 and a shutter 372. The valve body 370 is provided with a valve cavity 371. The inner wall of the valve cavity 371 is provided with a first water inlet port 3711, a second water inlet port 3712 and a water outlet port 3713. The first water inlet port 3711, the second water inlet port 3712 and the water outlet port 3713 are arranged along the circumference of the valve cavity 371.

[0079] The shutter 372 is arranged in the valve cavity 371 and has a first operating state of blocking the first water inlet port 3711 and a second operating state of blocking the second water inlet port 3722. The shutter 372 is arranged to rotate under the action of water flow entering the first water inlet port 3711 or the second water inlet port 3722 to switch between the first operating state and the second operating state.

[0080] As shown, Figure 8 The valve cavity 371 is provided with a first limiting portion 3701 and a second limiting portion 3702 on the rotation track of the shutter 372, and a fitting portion 3703 rotationally connected with the valve body 370. In the first operating state, the shutter 372 cooperates with the first limiting portion 3701 to limit and block the first water inlet port 3711. The shutter 372 cooperates with the second limiting portion 16 to limit and block the second water inlet port 3712.

[0081] In the present embodiment, the first limiting portion 3701 and the second limiting portion 3702 are arranged on the circumferential inner wall of the valve cavity 371 and cooperate with the shutter 372 to block the water flow. The first limiting portion 3701 is located between the first water inlet port 3711 and the water outlet port 3713 along the circumference, and the second limiting portion 3702 is located between the second water inlet port 3712 and the water outlet port 3713 along the circumference.

[0082] In some exemplary embodiments, for example, the first limiting part 3701 and the second limiting part 3702 may also be provided on at least one of the two opposing inner walls of the valve cavity 371 along the depth direction. Alternatively, the first limiting part 3701 and the second limiting part 3702 may be provided on the inner wall between the first water inlet port 3711 and the second water inlet port 3712.

[0083] like Figure 8 As shown, the mounting part 3703 is circumferentially disposed on the inner wall of the valve cavity 371 and circumferentially located between the first inlet port 3711 and the second inlet port 3712. The gate 372 is pivotally connected to the mounting part 3703, allowing the gate 372 to swing under the action of water flow, thereby switching the gate 372 between a first operating state and a second operating state. In this embodiment, the mounting part 3703 cooperates with the gate 372 to block the water flow.

[0084] like Figure 6 , Figure 7 As shown, the gate 372 includes a first end 3721 and a second end 3722 that are opposite each other along the length direction. The first end 3721 is pivotally connected to the mounting part 3703. In a first working state, the second end 3722 cooperates with the first limiting part 3701 for limiting; in a second working state, the second end 3722 cooperates with the second limiting part 3702 for limiting.

[0085] In this embodiment, the mounting part 3703 is a clamping port provided on the circumferential inner wall of the valve cavity 371, and the first end 3721 is provided with a rotating shaft that is fitted with the clamping port and can rotate relative to the clamping port. The clamping port extends along the depth direction of the valve cavity 371, and the rotating shaft extends along the width direction of the gate 372.

[0086] In one exemplary embodiment, the mounting portion 3703 may also be a rotating shaft disposed on the circumferential inner wall surface of the valve cavity 371, with a clamping opening at its first end 3721. In another exemplary embodiment, the mounting portion 3703 may also be a clamping groove disposed on the circumferential inner wall surface of the valve cavity 371 and extending along the depth direction of the valve cavity 371. In another exemplary embodiment, the mounting portion 3703 may also be a fixed shaft disposed on the bottom wall of the valve cavity 371, with the first end 3721 of the gate plate 372 rotatably connected to the fixed shaft.

[0087] like Figure 3 , Figure 4 As shown, in this embodiment, the thickness of the gate 372 gradually increases along the direction from the first end 3721 to the second end 3722, thereby making better use of the gate 372 swinging under the impact of the water flow.

[0088] The second end 3722 has a first side and a second side opposite in the circumferential direction. One of the first side and the second side is provided with a notch matched with the first limiting part 3701 or the second limiting part 3702, and the other has a flat surface matched with the first limiting part 3701 or the second limiting part 3702.

[0089] The first side and the second side of the gate plate 372 of the embodiment are designed in different forms, which can prevent mistakes during installation and increase the sealing of water flow. The second end of the gate plate 372 of the embodiment is provided with a notch 3723 (see Figure 7 ) in the depth direction of the valve cavity 371, which can prevent mistakes alone or in cooperation with the notch.

[0090] As shown in Figure 9 , at least one of the inner walls of the valve cavity 371 on the opposite sides in the depth direction is provided with a first positioning rib 373 extending towards the gate plate 372, which is located at the water outlet port 3713 and stops the second end 3722 of the gate plate 372 in the radial direction of the valve cavity 371, so as to limit the movement of the gate plate 372 in the radial direction of the valve cavity 371.

[0091] As shown in Figure 9 , at least one of the inner walls of the valve cavity 371 on the opposite sides in the depth direction is provided with a second positioning rib 374 extending towards the gate plate 372 and abutting against the gate plate 372, which limits the movement of the gate plate 372 in the depth direction of the valve cavity 371.

[0092] As shown in Figure 6 , the valve body 370 includes a valve body 370A provided with the valve cavity 371 and a valve cover 370B closing the valve cavity 371, and the valve cover 370B is detachably connected with the valve body 370A, so that the gate plate 372 can be installed or replaced. Of course, the valve body 370 can also be integrally formed, which is not limited here.

[0093] The cross section of the valve cavity 371 of the embodiment is circular, and can also be elliptical, triangular or other shapes, which is not limited here.

[0094] As shown in Figure 9 , the rotation angle a of the gate plate 372 of the water outlet valve 100 of the embodiment between the first limiting part 3701 and the second limiting part 3702 is greater than 0 degrees and less than or equal to 120 degrees. This range can make the gate plate 372 achieve a better water stopping effect.

[0095] The floating member 372 of the second switching valve 37 of the embodiment can move under the action of water flow to realize the on-off control of the two first water inlet ports 3711 and the second water inlet port 3712, without additional power, saving cost, low noise, and simple and reliable structure.

[0096] As shown in FIG. 1, in one exemplary embodiment, the second switching valve 37a comprises a valve body 370a and a floating member 372a. Figures 10-13

[0097] The valve body 370a is provided with a valve cavity 371a, and the inner wall of the valve cavity 371a is provided with a first water inlet port 3711a, a second water inlet port 3712a, and a water outlet port 3713a. The opening direction of the first water inlet port 3711a is opposite to the opening direction of the second water inlet port 3712a, so that the water flow directions entering the valve cavity 371a from the first water inlet port 3711a and the second water inlet port 3712a are opposite.

[0098] The floating member 372a is arranged in the valve cavity 371a and has a first operating state of blocking the first water inlet port 3711a and a second operating state of blocking the second water inlet port 3722a. The floating member 372a is arranged to be capable of moving in the valve cavity 371a along the opposite directions of the first water inlet port 3711a and the second water inlet port 3722a under the action of water flow entering the first water inlet port 3711a or the second water inlet port 3722a, so as to switch the first operating state and the second operating state.

[0099] The second switching valve 37a of the embodiment of the present application realizes the on-off control of the two water inlet ports by arranging the floating member 372a capable of moving under the action of water flow in the valve cavity 371a, without the need for additional power, saving cost, low noise, and simple and reliable structure.

[0100] In addition, the second switching valve 37a of the present application realizes the on-off control of the first water inlet port 3711a and the second water inlet port 3722a without the cooperation of its own gravity, so the installation requirement is low and is adaptable.

[0101] As shown in FIG. 1, the floating member 372a has opposite first water-stopping surface A and second water-stopping surface B along the movement direction. In the first working state, the first water-stopping surface A of the floating member 372a blocks the first water inlet port 3711a; in the second working state, the second water-stopping surface B of the floating member 372a blocks the second water inlet port 3712a. Figure 11 In one exemplary embodiment, the floating member 372a can also be provided with a water-stopping surface on the peripheral side to cooperate with the inner wall of the valve cavity 371a to realize water stopping.

[0102] As shown in FIG. 1, the floating member 372a has opposite first water-stopping surface A and second water-stopping surface B along the movement direction. In the first working state, the first water-stopping surface A of the floating member 372a blocks the first water inlet port 3711a; in the second working state, the second water-stopping surface B of the floating member 372a blocks the second water inlet port 3712a.

[0103] Figure 12 ​​As shown, the valve cavity 371a is provided with a guide cavity 3701a which is in communication with the first water inlet port 3711a and the second water inlet port 3712a, and the float 372a is at least partially arranged in the guide cavity 3701a and is capable of moving in the guide cavity 3701a under the action of water flow entering the first water inlet port 3711a or the second water inlet port 3712a.

[0104] The embodiment of the present application can guide the floating movement of the float 372a by arranging the guide cavity 3701a, thereby ensuring the reliability of the movement of the float 372a.

[0105] The diameter of the guide cavity 3701a of the embodiment of the present application is greater than the diameter of the first water inlet port 3711a and the second water inlet port 3712a, and the opposite two wall surfaces of the guide cavity 3701a along the movement direction of the float 372a form the first sealing surface C and the second sealing surface D, respectively.

[0106] In the first working state, the first water-stopping surface A of the float 372a cooperates with the first sealing surface C to block the first water inlet port 3711a; and in the second working state, the second water-stopping surface B of the float 372a cooperates with the second sealing surface D to block the second water inlet port 3712a.

[0107] The embodiment of the present application sets the diameter of the guide cavity 3701a to be greater than the diameter of the first water inlet port 3711a and the second water inlet port 3712a, thereby forming the first sealing surface C and the second sealing surface D, so as to increase the sealing area of the first water-stopping surface 3721a and the second water-stopping surface 3722a of the float 372a and increase the sealing effect. Therefore, the second switching valve 37a of the embodiment of the present application can be applied to a more precise sealing environment.

[0108] In one exemplary embodiment, the diameter of the guide cavity 3701a can also be equal to the diameter of the first water inlet port 3711a and the second water inlet port 3712a, and the first water inlet port 3711a and the second water inlet port 3712a are blocked by the sealing cooperation of the peripheral side of the float 372a and the inner wall of the peripheral side of the guide cavity 3701a.

[0109] As shown, Figure 11 The float 372a includes a blocking part 3723a, and the first blocking gasket 3724a and the second blocking gasket 3725a which are arranged on the opposite two sides of the blocking part 3723a along the movement direction, the first blocking gasket 3724a has the first water-stopping surface A, and the second blocking gasket 3725a has the second water-stopping surface B.

[0110] As shown, Figure 13As shown, the floating member 372a includes an extension 3726a connected with the blocking part 3723a, and the valve body 370a is provided with a limiting cavity 3702a which cooperates with the extension 3726a to slide. The limiting cavity 3702a not only has a guiding effect, but also can keep the floating member 372a from falling off.

[0111] The blocking part 3723a and the extension 3726a of the embodiment are integrally formed, which is simple to manufacture. Of course, the blocking part 3723a and the extension 3726a can also be separately installed, which is not limited herein. The extension 3726a is designed to be hollow, which is beneficial to the water flow passing through in the largest amount. Of course, multiple water passing channels can also be designed to realize water passing, which is not limited herein.

[0112] As shown, Figure 11 The valve body 370a includes a first valve body 370C and a second valve body 370D which are fitted in the opposite direction of the first water inlet port 3711a and the first water inlet port 3711a, and a valve cavity 371 is formed after the first valve body 370C and the second valve body 370D are fitted, so as to install, replace and maintain the floating member 372a.

[0113] The second switching valve 37a of the embodiment can realize the on-off control of the two first water inlet ports 3711a and the second water inlet port 3712a by arranging the floating member 372a which can move under the action of water flow in the valve cavity 371a, without additional power, saving cost, low noise and simple and reliable structure.

[0114] In addition, the second switching valve 37a of the application can realize the on-off control of the first water inlet port 3711a and the second water inlet port 3712a by the action of water flow only, without the cooperation of its own gravity, so the installation requirement is low and it is adaptable.

[0115] As shown, Figure 5 , Figure 10 The first water inlet port 3711, 3711a of the second switching valve 37, 37a is connected with the second water supply flow 32, the second water inlet port 3712, 3712a of the second switching valve 37, 37a is connected with the first water outlet 3512 of the first switching valve 35, and the water outlet port 3713, 3713a of the second switching valve 37, 37a is connected with the brush circle water flow 33. Therefore, the water supply of the brush circle water flow 33 can be directly connected through the second water supply flow 32, or connected through the first water supply flow 31, the first switching valve 35 and the second switching valve 37, 37a.

[0116] When the water pressure of the second water supply flow 32 is insufficient, the first water supply flow 31 can be used for brush circle flushing and jet flushing; when the water pressure of the second water supply flow 32 is normal, the first water supply flow 31 and the second water supply flow 32 can be used for cleaning.

[0117] The flushing system of the embodiment of the present application can realize silent flushing, as Figure 14 As shown, when the water pressure of the second water supply waterway 32 is lower than the predetermined value (i.e. the water pressure of tap water is insufficient), in order to ensure the cleaning effect, the flushing system 3 includes the following operations:

[0118] S1, the control device controls the first water supply waterway 31 to supply water and the booster 36 to operate, the first switch valve 35 switches to the first working state, the second switch valve 37 and 37a switch to the first operating state, and the first circle cleaning is performed. Since the water pressure of tap water is low, the cleaning ability of the first circle cleaning is low, and therefore the pressurized water provided by the first water supply waterway 32 is supplied to the first circle waterway 33 through the first switch valve 35 and the second switch valve 37 and 37a, so that the first circle cleaning can achieve a higher cleaning effect.

[0119] S2, after the first circle cleaning, the control device controls the first water supply waterway 31 and the second water supply waterway 32 to supply water and the booster 36 to operate, the first switch valve 35 switches to the second working state, and the second switch valve 37 and 37a switch to the second operating state, so that the system performs the combined cleaning of the first circle and the spray. In the process of the spray cleaning, the first circle is supplied with tap water to reduce the noise caused by the impact of the spray water on the toilet wall, so that the silent flushing effect is achieved.

[0120] S3, after the combined cleaning of the first circle and the spray, the control device controls the first water supply waterway 31 to supply water and the booster 36 to operate, the first switch valve 35 switches to the first working state, and the second switch valve 37 and 37a switch to the first operating state, so that the second circle cleaning is performed. The second circle cleaning is performed by the pressurized water, so that the cleaning effect of the second circle cleaning is improved.

[0121] When the water pressure of the second water supply waterway is higher than or equal to the predetermined value (i.e. the water pressure of tap water is normal), the flushing system 3 includes the following operations:

[0122] S4, the control device controls the second water supply waterway 32 to supply water and the booster 36 to be closed, and the second switch valve 37 and 37a switch to the second operating state, so that the first circle cleaning is performed.

[0123] S5, after the first circle cleaning, the control device controls the first water supply waterway 31 and the second water supply waterway 32 to supply water and the booster 36 to operate, the first switch valve 35 switches to the second working state, and the second switch valve 37 and 37a switch to the second operating state, so that the system performs the combined cleaning of the first circle and the spray. In the process of the spray cleaning, the first circle is supplied with tap water to reduce the noise caused by the impact of the spray water on the toilet wall, so that the silent flushing effect is achieved.

[0124] S6, the control device controls the second water supply waterway 32 to supply water and the booster 36 to be closed, and the second switch valve 37 and 37a switch to the first operating state, so that the second circle cleaning is performed.

[0125] The flushing system of the embodiment of the application can switch the flushing mode according to the water pressure of the first water supply channel 31, so that the flushing is more intelligent. Specifically, a detection element (not shown in the figure) can be arranged to detect the water pressure of the first water supply channel 31, and the detection element is connected to the control device, and the switching of the flushing mode is realized according to the detection result.

[0126] As shown in Figure 5 The flushing system 35 further comprises a second jetting channel 39 and a control valve 38 arranged in the second water supply channel 32 and used for controlling the on-off of the first water supply channel, the control valve 38 divides the second water supply channel 32 into a first water supply branch 321 connected to the water inlet end of the second jetting channel 39 and a second water supply branch 322 connected to the first water inlet 3711, 3711a of the second switching valve 37, 37a. The control device is electrically connected to the control valve 38.

[0127] The booster device 36 is arranged to be connectable to a municipal power supply, and when the municipal power supply cannot supply power, the flushing system 35 includes the following operations:

[0128] S7, the control device controls the first water supply branch 321 to supply water to the second switching valve 37, 37a, and the second switching valve 37, 37a switches to the second operating state, so that the second water supply channel 32 is communicated with the brushing circle channel 33, and the first brushing circle cleaning is performed;

[0129] S8, after the first brushing circle cleaning, the control device controls the second water supply branch 322 to supply water to the second jetting channel 39, and the siphon jetting is performed;

[0130] S9, after the siphon jetting, the control device controls the first water supply branch 321 to supply water to the second switching valve 37, 37a, and the second switching valve 37, 37a switches to the second operating state, so that the second water supply channel 32 is communicated with the brushing circle channel 33, and the second brushing circle cleaning is performed.

[0131] As shown in Figure 2 The flushing system 35 further comprises a brushing circle nozzle 41 and a siphon jetting device 42, the brushing circle nozzle 41 is arranged at the water outlet end of the brushing circle channel 31 and is arranged to be installed in cooperation with the brushing circle interface of the closestool 1. The siphon jetting device 42 is arranged to be installed in cooperation with the siphon jetting port of the closestool 1.

[0132] The flushing system of the embodiment can intelligently select the flushing mode according to the actual water pressure environment of the user, meet different flushing requirements, and improve the intelligence of the product.

[0133] The present application describes a number of embodiments, but the description is exemplary rather than limiting and it will be apparent to those of ordinary skill in the art that numerous embodiments and implementations can be made without departing from the scope of the embodiments described in the present application. Although many possible combinations of features are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are possible. Unless specifically intended otherwise, any feature or element of any embodiment can be used in combination with any other feature or element of any other embodiment, or in replacement of any other feature or element in any other embodiment.

[0134] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed herein can also be combined with any conventional features or elements to form a unique application of the presently claimed application that is not specifically disclosed. Any feature or element of any embodiment can also be combined with features or elements from other applications to form another unique application of the presently claimed application that is not specifically disclosed. Thus, it should be understood that any feature shown and / or discussed in the present application can be implemented alone or in any suitable combination. Accordingly, the embodiments are not to be restricted, except as by the appended claims and their equivalents. Furthermore, various modifications and changes can be made within the scope of the attached claims.

[0135] Furthermore, in describing representative embodiments, the specification can have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process depends on the particular order of steps, this description should not be construed as limiting unless specifically so stated. Other steps can be provided in addition to or instead of the steps described, and the method and / or process can be conducted in an order different from the specific ordering of steps sub-combined, as will be appreciated by one of ordinary skill in the art. Thus, the specific order of steps recited in the specification is not an inherent part of the embodiments. Further, the recited steps of the methods and / or processes can be carried out in any order unless otherwise specifically noted. The claims should not be interpreted as being limited to the specific sequences of steps described herein.

[0136] Those skilled in the art can understand that all or some of the steps in the method disclosed above, the functional modules / units in the system and the device can be implemented as software, firmware, hardware or a suitable combination thereof. In the hardware implementation, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component can have multiple functions, or one function or step can be performed by several physical components in cooperation. Some or all of the components can be implemented as software executed by a processor such as a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit such as an application-specific integrated circuit. Such software can be distributed on a computer readable medium, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. In addition, as known to those skilled in the art, communication media generally includes computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery medium.

[0137] In the description in the present application, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "periphery", "mouth structure" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to has a particular orientation, is constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0138] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", "assembly" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; the terms "installation", "connection", "fixed connection" can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0139] Although the present application has been described with reference to specific embodiments, it will be apparent to those skilled in the art that various modifications and changes can be made within the spirit and scope of the application which is defined by the appended claims.

Claims

1. A first switching valve, characterized in that, include: The valve body has a valve cavity, and the inner wall of the valve cavity has an inlet, a first outlet and a second outlet; A floating valve core is disposed in the valve cavity and is configured to move in the valve cavity away from the inlet under the action of water flow entering the inlet. The floating valve core has a first working state of blocking the first outlet and a second working state of blocking the second outlet. A reset device is provided in the valve cavity. The reset device is a reset spring. One end of the reset spring abuts against the floating valve core, and the other end abuts against the inner wall of the valve cavity. The reset spring provides a force for the floating valve core to move toward the water inlet. Under the combined action of the change in water pressure at the water inlet and the force of the reset device, the floating valve core can move away from the water inlet and toward the water inlet to switch between the first working state and the second working state. The floating valve core has a partition portion that blocks or opens the first outlet and a stop portion that blocks or opens the second outlet. The partition divides the valve chamber into two parts; When the floating valve core is in the first working state, the partition opens the first outlet, the stop block blocks the second outlet, and the inlet and the first outlet are connected. When the floating valve core is in the second working state, the dividing part blocks the first outlet, the stop part opens the second outlet, and the inlet and the second outlet are connected.

2. The first switching valve according to claim 1, characterized in that, The first outlet and the second outlet are located on the inner wall of the valve cavity within the movement path range of the floating valve core. The second outlet is closer to the inlet than the first outlet, and the cross-sectional area of ​​the first outlet is smaller than that of the second outlet.

3. A flushing system, characterized in that, include: The first water supply circuit has its inlet end connected to a water tank, and the first water supply circuit is equipped with a booster device. The toilet includes a brush ring water path and a first jet water path, wherein the outlet of the brush ring water path is configured to connect to the brush ring interface of the toilet, and the outlet of the first jet water path is configured to connect to the siphon jet port of the toilet. The first switching valve as described in claim 1 or 2, wherein the inlet of the first switching valve is connected to the outlet of the first water supply circuit, the first outlet of the first switching valve is connected to the brush ring circuit, and the second outlet of the first switching valve is connected to the first jet circuit.

4. The flushing system according to claim 3, characterized in that, It also includes a control device electrically connected to the booster device, the control device being configured to control the water pressure of the first water supply circuit by controlling the duty cycle of the booster device; When the control device controls the duty cycle of the booster device to the first duty cycle, and the water pressure at the inlet is greater than the force provided by the reset device, the floating valve core switches to the first working state. When the control device controls the duty cycle of the booster device to a second duty cycle that is less than the first duty cycle, the water pressure at the inlet is less than the force provided by the reset device, and the floating valve core switches to the second working state.

5. The flushing system according to claim 4, characterized in that, It also includes a second switching valve, the second switching valve comprising: The valve body has a valve cavity, and the inner wall of the valve cavity has a first water inlet port, a second water inlet port and a water outlet port, which are arranged circumferentially along the valve cavity. A gate is disposed in the inner cavity of the valve and has a first operating state of blocking the first water inlet port and a second operating state of blocking the second water inlet port respectively. The gate is configured to rotate under the action of water flow entering the first water inlet port or the second water inlet port to switch between the first operating state and the second operating state. The flushing system also includes a second water supply circuit for connecting to a municipal water source. The first inlet port of the second switching valve is connected to the second water supply circuit, the second inlet port of the second switching valve is connected to the first outlet port of the first switching valve, and the outlet port of the second switching valve is connected to the brush ring water circuit.

6. The flushing system according to claim 4, characterized in that, It also includes a second switching valve, the second switching valve comprising: The valve body has a valve cavity, and the inner wall of the valve cavity has a first water inlet port, a second water inlet port and a water outlet port. The opening direction of the first water inlet port is opposite to the opening direction of the second water inlet port, so that the water flow direction entering the valve cavity from the first water inlet port and the second water inlet port is opposite. A floating element is disposed in the inner cavity of the valve and has a first operating state of blocking the first water inlet port and a second operating state of blocking the second water inlet port. The floating element is configured to be able to move in the inner cavity of the valve along the relative direction of the first water inlet port and the second water inlet port to switch between the first operating state and the second operating state under the action of water flow entering the first water inlet port or the second water inlet port. The flushing system also includes a second water supply circuit for connecting to a municipal water source. The first inlet port of the second switching valve is connected to the second water supply circuit, the second inlet port of the second switching valve is connected to the first outlet port of the first switching valve, and the outlet port of the second switching valve is connected to the brush ring water circuit.

7. The flushing system according to claim 5 or 6, characterized in that, It also includes a second jet water path and a control valve located in the first water supply path for controlling the on / off state of the second water supply path; The control valve divides the second water supply circuit into a first water supply branch connected to the first inlet port of the second switching valve and a second water supply branch connected to the inlet end of the second jet water circuit. The control device is electrically connected to the control valve. The booster device is configured to connect to the municipal power supply. When the power fails, the control device controls the control valve to switch the water supply from the first water supply branch to the second water supply branch, thereby switching the working state of the flushing system.

8. A toilet, characterized in that, It includes a toilet body with a brush ring interface and a siphon jet nozzle, and a flushing system as described in any one of claims 3-7.

9. A flushing method applied to the flushing system as described in any one of claims 5-7, the method comprising: When the water pressure of the second water supply circuit is detected to be lower than the predetermined value, the first water supply circuit is controlled to supply water and the booster device is activated. The first switching valve switches to the first working state, and the second switching valve switches to the first operating state to perform the first brush ring cleaning. After the initial brush ring cleaning, the first and second water supply circuits are controlled to supply water and the booster device is activated. The first switching valve switches to the second working state, and the second switching valve switches to the second operating state. The system performs brush ring and spray cleaning together. After the brush ring and spray cleaning are combined, the first water supply circuit is controlled to supply water and the booster device is activated. The first switching valve switches to the first working state, and the second switching valve switches to the first operating state to perform brush ring spray cleaning again.

10. The rinsing method according to claim 9, characterized in that, The method includes: When the water pressure of the second water supply circuit is higher than or equal to the predetermined value, the second water supply circuit is controlled to supply water and the booster device is turned off. The second switching valve switches to the second operating state to perform the first brush ring cleaning. After the initial brush ring cleaning, the first and second water supply circuits are controlled to supply water and the booster device is activated. The first switching valve remains in the first operating state, and the second switching valve switches to the first operating state. The system performs brush ring and spray cleaning together. After the brush ring and spray cleaning are completed, the second water supply circuit is controlled to supply water and the booster device is turned off. The second switching valve switches to the second operating state to perform brush ring cleaning again.

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