Flushing device and intelligent toilet

Abstract

The application provides a flushing device and an intelligent toilet, wherein the flushing device comprises: a pilot valve, which is provided with a first water inlet and a first water outlet; an isolation valve, which is communicated with the pilot valve and comprises a second water inlet and a second water outlet, the first water outlet being communicated with the second water inlet; a water distribution valve, which comprises a third water inlet, a third water outlet and a fourth water outlet, the third water inlet being communicated with the second water outlet, and the water distribution valve being provided with a water distribution valve core, the opening and closing of the third water outlet and the fourth water outlet being realized through the movement of the water distribution valve core; and an opening and closing assembly, which is arranged in the pilot valve, the water distribution valve core being connected with the opening and closing assembly and controlling the state of the opening and closing assembly to control the pilot valve to open or close the first water inlet. Through the above mode, the multifunctionality of the flushing device is effectively ensured, and the volume occupied by the flushing device is reduced.

Description

Technical Field

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

[0002] With the improvement of living standards, smart toilets have become widely used. Currently, the independent water pressure inlet valves on the market are mechanical inlet valves, which can only control the water inlet to the tank and cannot supply water to other water circuits. This means that existing tank toilets often require multiple mechanical inlet valves to complete the corresponding water replenishment or flushing tasks, resulting in a large volume occupied by the independent water pressure inlet valve within the smart toilet. Furthermore, using multiple mechanical inlet valves makes the flushing device structure more complex and increases production costs. Utility Model Content

[0003] This application provides a flushing device to solve the problem of large volume occupied by flushing devices in the prior art.

[0004] To address the aforementioned technical problems, this application provides a flushing device, comprising: a pilot valve having a first inlet and a first outlet; an isolation valve connected to the pilot valve, the isolation valve including a second inlet and a second outlet, the first outlet being connected to the second inlet; a water distribution valve including a third inlet, a third outlet, and a fourth outlet, the third inlet being connected to the second outlet, a water distribution valve core being provided inside the water distribution valve, the movement of the water distribution valve core realizing the opening and closing of the third outlet and the fourth outlet; and an opening and closing assembly disposed inside the pilot valve, the water distribution valve core being connected to the opening and closing assembly, and controlling the state of the opening and closing assembly to control the pilot valve to open or close the first inlet.

[0005] The water distribution valve is equipped with a first water inlet pipe and a second water inlet pipe; the isolation valve is equipped with a third water inlet pipe. The first water inlet pipe is connected to the second water inlet pipe through the third water inlet pipe. The other end of the first water inlet pipe is connected to the pilot valve, and the second water inlet pipe is connected to the inside of the water distribution valve.

[0006] The first and second water inlet pipes have through holes on their side walls; the third water inlet pipe has a groove corresponding to the through hole, and a connector that abuts against the groove is inserted into the through hole.

[0007] The flushing device includes a driving component, which is located at one end of the water distribution valve. The water distribution valve core includes a rotating shaft, which is connected to the driving component. A baffle is provided on the side wall of the rotating shaft, which is fitted against the inner side wall of the water distribution valve. At least part of the baffle corresponds to the third outlet and the fourth outlet.

[0008] The water distribution valve core also includes a turntable, which is located at the end of the rotating shaft near the drive component and abuts against the opening and closing assembly. The edge of the turntable is provided with a first arc protrusion and a second arc protrusion, which are connected by a straight protrusion. The diameter of the first arc protrusion is larger than the diameter of the second arc protrusion.

[0009] The pilot valve includes a first housing with a pilot hole. The opening and closing assembly includes a piston rod and a reset member sleeved on the outer wall of the piston rod. One end of the reset member abuts against the inner wall of the pilot valve near the water distribution valve, and the other end abuts against the end of the piston rod near the first housing. A rubber part is provided on the piston rod and is movably connected to the pilot hole. The connection state between the rubber part and the pilot hole can control the opening and closing of the first water inlet.

[0010] The isolation valve includes a second housing with a vent hole for communication with the outside. A support is provided between the second housing and the third water inlet pipe. An isolation valve core is provided on the support and is movably connected to the support. The isolation valve core is at least partially located inside the third water inlet pipe.

[0011] The water distribution valve has a first limiting member on its inner side wall away from the drive component; a second limiting member is provided at the end of the rotating shaft away from the drive component. The first limiting member and the second limiting member are movably connected to limit the rotation angle of the water distribution valve core.

[0012] The third and fourth water outlets are set on the same plane.

[0013] To address the aforementioned issues, this application also provides a smart toilet, comprising: a flushing device, wherein the flushing device is any of the above-mentioned flushing devices.

[0014] The beneficial effects of this application are as follows: Unlike the prior art, this application sets a third and a fourth water outlet on the water distribution valve, and the opening and closing of the third and fourth water outlets can be controlled by the movement of the water distribution valve core, thereby effectively ensuring the multifunctionality of the flushing device. Furthermore, by integrating the pilot valve, isolation valve, and water distribution valve into one unit, the volume occupied by the flushing device is effectively reduced, and the layout capability of the flushing device when installed in the product is improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the flushing device of this application;

[0016] Figure 2 This is a structural schematic diagram of the exploded view of the flushing device in this application;

[0017] Figure 3 This is a schematic diagram of the internal structure of the water distribution valve in this application;

[0018] Figure 4 This is a structural schematic diagram of the cross-sectional view of the flushing device of this application;

[0019] Figure 5 This is a schematic diagram of the connection between the water distribution valve core and the baffle plate in this application;

[0020] Figure 6 This is a schematic diagram of the structure of one embodiment of the turntable in this application;

[0021] Figure 7 This is a schematic diagram of the connection between the second cover plate and the pilot hole in this application;

[0022] Figure 8 This is a schematic diagram of the structure of an embodiment of the piston rod of this application;

[0023] Figure 9 This is a schematic diagram of the connection between the piston rod, the turntable, and the pilot hole in this application;

[0024] Figure 10 This is a structural schematic diagram of the cross-sectional view of the connection between the water distribution valve core and the opening and closing assembly in this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0028] Please see Figure 1 , Figure 1 This is a structural schematic diagram of the cross-sectional view of the flushing device provided in this application.

[0029] This application provides a flushing device. For example... Figure 1 and Figure 2 As shown, the flushing device of this embodiment includes: a pilot valve 10, an isolation valve 20, a water distribution valve 30, and an opening and closing assembly 40. The pilot valve 10 is provided with a first inlet 11 and a first outlet 12. The isolation valve 20 is connected to the pilot valve 10, and the isolation valve 20 includes a second inlet 21 and a second outlet 22; that is, the first outlet 12 of the pilot valve 10 is connected to the second inlet 21 of the isolation valve 20. Figure 3 As shown, the water distribution valve 30 includes a third inlet 31, a third outlet 32, and a fourth outlet 33. The third inlet 31 is connected to the second outlet 22. A water distribution valve core 34 is provided inside the water distribution valve 30. The movement of the water distribution valve core 34 realizes the opening and closing of the third outlet 32 ​​and the fourth outlet 33. The opening and closing assembly 40 is provided inside the pilot valve 10. The water distribution valve core 34 is connected to the opening and closing assembly 40 and controls the state of the opening and closing assembly 40 to control the pilot valve 10 to open or close the first inlet 11.

[0030] In an optional embodiment, a control assembly 40 is provided inside the pilot valve 10, and a first inlet 11 is provided on the pilot valve 10. The first inlet 11 can be connected to a tap water pipe to supply water to the pilot valve 10. When water is supplied to the pilot valve 10 through the first inlet 11, the control assembly 40 can control the opening and closing of the first inlet 11, thereby controlling the flow of water into the pilot valve 10. Specifically, the control assembly 40 is connected to the water distribution valve core 34 inside the water distribution valve 30. When the water distribution valve core 34 moves inside the water distribution valve 30, it can drive the control assembly 40 to move and control the state of the control assembly 40, thereby controlling the pilot valve 10 to open or close the first inlet 11.

[0031] The water distribution valve core 34 can rotate relative to the water distribution valve 30, meaning that a space for accommodating the water distribution valve core 34 is formed inside the water distribution valve 30, and this space is connected to the third inlet 31, the third outlet 32, and the fourth outlet 33. When the water distribution valve core 34 rotates inside the water distribution valve 30, it can drive the opening and closing of the first inlet 11 of the pilot valve 10. After passing through the pilot valve 10, the water enters the isolation valve 20 and then enters the water distribution valve 30 through the second outlet 22. When the water distribution valve core 34 rotates inside the water distribution valve 30, it can block the third outlet 32 ​​or the fourth outlet 33, thus controlling the opening and closing of the third outlet 32 ​​and the fourth outlet 33, thereby achieving the function of diverting the flow.

[0032] In some embodiments, when the water diversion valve 30 needs to divert water, i.e., when the flushing device is working, the water diversion valve core 34 rotates inside the water diversion valve 30, thereby driving the opening and closing assembly 40 to move, so as to open the first inlet 11 of the pilot valve 10. The first outlet 12 of the pilot valve 10 is connected to the second inlet 21 of the isolation valve 20. The water flow in the pilot valve 10 can enter the isolation valve 20 through the first outlet 12, and is transmitted to the water diversion valve 30 through the second outlet 22 of the isolation valve 20. As the water diversion valve core 34 moves inside the water diversion valve 30, the water diversion valve core 34 can block the third outlet 32 ​​and the fourth outlet 33 respectively, thereby completing the diversion of water flow. Specifically, when the water diversion valve core 34 rotates inside the water diversion valve 30, when the water diversion valve core 34 blocks the third outlet 32, the water flow is discharged through the fourth outlet 33, and when the water diversion valve core 34 blocks the fourth outlet 33, the water flow is discharged through the third outlet 32.

[0033] Before the water flows into the water distribution valve 30, it needs to pass through the isolation valve 20. When there is water in the isolation valve 20, the isolation valve 20 is isolated from the outside. After the water flows into the water distribution valve 30, when there is no water in the isolation valve 20, the isolation valve 20 can be connected to the outside, allowing outside air to enter the isolation valve 20. This makes the air pressure inside and outside the isolation valve 20 the same, thus avoiding siphoning and other phenomena that could cause water backflow.

[0034] In a specific application scenario, when the flushing device is installed inside a smart toilet, the integrated design of the pilot valve 10, isolation valve 20, and water distribution valve 30 effectively reduces the volume occupied by the flushing device. Therefore, installing the flushing device inside the smart toilet significantly improves the layout flexibility of the installed components. Furthermore, when installing the flushing device, the third outlet 32 ​​can be connected to the side flush port of the smart toilet, and the fourth outlet 33 can be connected to the water tank. This means the flushing device can perform both the side flushing function and the water tank replenishment function, thus ensuring both a small footprint and multifunctionality.

[0035] In the above embodiments, by providing a third outlet 32 ​​and a fourth outlet 33 on the water distribution valve 30, the opening and closing of the third outlet 32 ​​and the fourth outlet 33 can be controlled by the movement of the water distribution valve core 34, thereby effectively ensuring the multifunctionality of the flushing device. Furthermore, by integrating the pilot valve 10, the isolation valve 20, and the water distribution valve 30 into one unit, the volume occupied by the flushing device is effectively reduced, and the layout capability of the flushing device when installed in the product is improved.

[0036] In an optional embodiment, such as Figure 4As shown, the water distribution valve 30 is equipped with a first inlet pipe 35 and a second inlet pipe 36. The isolation valve 20 is equipped with a third inlet pipe 23. The first inlet pipe 35 is connected to the second inlet pipe 36 through the third inlet pipe 23. The other end of the first inlet pipe 35 is connected to the pilot valve 10. The second inlet pipe 36 is connected to the interior of the water distribution valve 30. The water distribution valve 30 is equipped with the first inlet pipe 35 and the second inlet pipe 36, and the third inlet pipe 23 of the pilot valve 10 and the isolation valve 20 is connected through the first inlet pipe 35. The other end of the third inlet pipe 23 is connected to the second inlet pipe 36 of the water distribution valve 30. This allows the pilot valve 10, the isolation valve 20 and the water distribution valve 30 to be integrated into one unit without the need for other pipeline connections, thereby effectively reducing the volume occupied by the flushing device.

[0037] In this embodiment, the first inlet pipe 35 on the water distribution valve 30 is not connected to the interior of the water distribution valve 30; that is, the first inlet pipe 35 only connects the pilot valve 10 and the isolation valve 20. The first inlet pipe 35 is located on the outer wall of the pilot valve 10, and its axial direction is parallel to the axial direction of the second inlet pipe 36, thereby further reducing the volume occupied by the flushing device. Specifically, the first outlet 12 on the pilot valve 10 is connected to the third inlet pipe 23 of the isolation valve 20. The third inlet pipe 23 is provided with a second inlet 21 and a second outlet 22. The second inlet 21 is connected to the first outlet 12 of the pilot valve 10, and the second outlet 22 is connected to the second inlet pipe 36 of the water distribution valve 30. That is, the second outlet 22 of the third inlet pipe 23 is connected to the third inlet 31 of the second inlet pipe 36. Therefore, by connecting the first water inlet pipe 35, the third water inlet pipe 23 and the second water inlet pipe 36 in sequence, there is no need to use other pipes for connection, which effectively reduces the volume occupied by the flushing device.

[0038] In this embodiment, the third water inlet pipe 23 provided on the isolation valve 20 can be a "U"-shaped pipe, that is, the connection points of the third water inlet pipe 23 with the first water inlet pipe 35 and the second water inlet pipe 36 can be on the same straight line, thereby ensuring that the volume occupied by the flushing device is reduced. In other embodiments, the first water inlet pipe 35 can also be set to other shapes, which can be set according to the product to be installed, and this application does not make specific limitations here.

[0039] In some embodiments, such as Figure 2As shown, the isolation valve 20 is used to prevent siphoning from occurring in the water distribution valve 30. The isolation valve 20 includes a second housing 24, which has a vent 27 that communicates with the outside. A support 25 is provided between the second housing 24 and the third water inlet pipe 23. An isolation valve core 26, which is movably connected to the support 25, is provided on the support 25. The isolation valve core 26 is at least partially located inside the third water inlet pipe 23. That is, the vent 27 on the second housing 24 communicates with the outside. When there is no water flow in the third water inlet pipe 23, the isolation valve 20 can communicate with the outside through the vent 27, thereby preventing siphoning.

[0040] Specifically, when the pilot valve 10 supplies water to the water distribution valve 30 through the isolation valve 20, that is, when there is water flow in the third water inlet pipe 23, the isolation valve core 26 is lifted and comes into contact with the support part 25 under the action of the water flow, thereby completely blocking the third water inlet pipe 23 and preventing water from overflowing through the support part 25. After the water has completely entered the water distribution valve 30 and been discharged through the third outlet 32 ​​or the fourth outlet 33, that is, when there is no water flow in the third water inlet pipe 23, there is a gap between the isolation valve core 26 and the support part 25 under its own weight, so that the third water inlet pipe 23 is connected to the outside through the vent 27, thereby balancing the air pressure inside and outside the flushing device and preventing the occurrence of siphon phenomenon.

[0041] In some embodiments, such as Figure 2 As shown, through holes 51 are provided on the side walls of the first water inlet pipe 35 and the second water inlet pipe 36, and a groove 53 corresponding to the through hole 51 is provided on the third water inlet pipe 23. A connector 50 is inserted into the through hole 51 and abuts against the groove 53. The dimensions of the connection points between the first water inlet pipe 35 and the second water inlet pipe 36 and the third water inlet pipe 23 are larger than the dimensions of the third water inlet pipe 23 and the first water inlet pipe 35 and the second water inlet pipe 36, allowing the third water inlet pipe 23 to be inserted inside the first water inlet pipe 35 and the second water inlet pipe 36. After the third water inlet pipe 23 is inserted into the first water inlet pipe 35 and the second water inlet pipe 36, it can be fixed by the connector 50.

[0042] In this embodiment, through holes 51 are provided on the second water inlet pipe 36 and the first water inlet pipe 35, and a groove 53 is provided on the third water inlet pipe 23 surrounding the side wall of the third water inlet pipe 23. When fixing the third water inlet pipe 23 to the first water inlet pipe 35 and the second water inlet pipe 36, the third water inlet pipe 23 can be inserted into the first water inlet pipe 35 and the second water inlet pipe 36, and then the connector 50 is inserted into the through hole 51 and the connector 50 can be inserted into the groove 53, thereby fixing the first water inlet pipe 35, the second water inlet pipe 36 and the third water inlet pipe 23, thereby fixing the third water inlet pipe 23 and preventing the third water inlet pipe 23 from detaching.

[0043] The connector 50 may have three insertion parts, and corresponding through holes 51 are provided on the first water inlet pipe 35 and the second water inlet pipe 36. When the connector 50 is inserted into the through holes 51, the third water inlet pipe 23 on the first water inlet pipe 35 and the second water inlet pipe 36 can be fixed simultaneously. This allows for the movement trajectory of the third water inlet pipe 23 along its axial direction.

[0044] In some embodiments, combined with Figure 5 As shown, the flushing device also includes a drive component 37 disposed at one end of the diversion valve 30. The diversion valve 30 also includes a rotating shaft 341 connected to the drive component 37. A baffle 342 is disposed on the side wall of the rotating shaft 341, and the baffle 342 is disposed against the inner side wall of the diversion valve 30. The baffle 342 at least partially corresponds to the third outlet 32 ​​and the fourth outlet 33. The drive component 37 is used to connect to a power source, such as a household power source. The drive component 37 can be a motor, which drives the diversion valve core 34 to rotate within the diversion valve 30, thereby causing the baffle 342 to rotate and correspondingly block the third outlet 32 ​​or the fourth outlet 33. Specifically, the drive component 37 is fixedly connected to the rotating shaft 341 of the water distribution valve core 34, that is, the output end of the drive component 37 is connected to the rotating shaft 341. When the drive component 37 is working, it can drive the baffle 342 set on the rotating shaft 341 to rotate, thereby completing the diversion work. In other embodiments, the drive component 37 can also be other devices that provide power, such as a cylinder, etc. It is only necessary to drive the water distribution valve core 34 to rotate within the water distribution valve 30 through other linkage components. Specifically, this application does not make specific limitations here.

[0045] In this embodiment, the baffle 342 is fitted against the inner wall of the water distribution valve 30. The inner wall of the water distribution valve 30 can be configured as an arc shape, that is, the baffle 342 is correspondingly configured as an arc shape, so that the baffle 342 can be completely fitted against the inner wall of the water distribution valve 30. When the driving member 37 drives the water distribution valve core 34 to rotate, the baffle 342 can rotate inside the water distribution valve 30, thereby blocking the third outlet 32 ​​and the fourth outlet 33 respectively, thus diverting the water flow entering the water distribution valve 30 through the baffle 342.

[0046] In this embodiment, to effectively block the third outlet 32 ​​and the fourth outlet 33 using a baffle 342, the third outlet 32 ​​and the fourth outlet 33 are arranged coplanarly. That is, the axial direction of the third outlet 32 ​​and the axial direction of the fourth outlet 33 are in the same plane, allowing for effective water flow diversion using the baffle 342. In other embodiments, the third outlet 32 ​​and the fourth outlet 33 may not be coplanar, as long as the baffle 342 can completely block the third inlet 31 and the fourth outlet 33 when rotated. This application does not impose specific limitations here.

[0047] In some embodiments, such as Figure 7 and Figure 9 As shown, the pilot valve 10 includes a first housing 13, on which a pilot hole 14 is provided. The opening and closing assembly 40 includes a piston rod 41 and a reset member 42 sleeved on the outer wall of the piston rod 41. One end of the reset member 42 abuts against the inner wall of the pilot valve 10 near the water distribution valve 30, and the other end abuts against the end of the piston rod 41 near the first housing 13. A rubber member 43 is provided on the piston rod 41 and is movably connected to the pilot hole 14. The connection state between the rubber member 43 and the pilot hole 14 can control the opening and closing of the first water inlet 11. Specifically, the pilot hole 14 is provided on the end face of the first housing 13 near the water distribution valve 30. The axial direction of the pilot hole 14 coincides with the axial direction of the piston rod 41, and the pilot hole 14 is located at the edge of the first housing 13. The opening and closing assembly 40 can be abutted against the pilot hole 14. When the flushing device is needed, the opening and closing assembly 40 can be driven away from the pilot hole 14, thereby opening the first inlet 11 of the pilot valve 10 to supply water to the water distribution valve 30. When the flushing device is not needed, the opening and closing assembly 40 can be made to abut against the pilot hole 14, that is, to completely block the pilot hole 14. At this time, the first inlet 11 of the pilot valve 10 is closed, and the flushing device stops working.

[0048] Among them, such as Figure 8 As shown, a slide rail 411 is provided on the piston rod 41 along the axial direction of the piston rod 41, in conjunction with... Figure 10As shown, a first column 412 is provided on the side opposite to the end of the piston rod 41 near the water distribution valve 30. The column 412 can be inserted into the water distribution valve core 34. When the water distribution valve core 34 rotates, it can drive the piston rod 41 to slide along the axis of the pilot hole 14, thereby controlling the opening and closing of the first water inlet 11. Furthermore, a slide rail 411 is provided on the piston rod 41 to prevent the piston rod 41 from rotating during movement, which would cause the cooperation between the column 412 and the water distribution valve core 34 to fail, and prevent the opening and closing assembly 40 from moving when the water distribution valve core 34 rotates. Specifically, the slide rail 411 is provided on the piston rod 41, meaning the outer wall of the piston rod 41 is irregularly shaped. A corresponding groove of a certain shape can be provided on the housing of the water distribution valve 30 or the pilot valve 10 to limit the rotation angle of the piston rod 41.

[0049] In this embodiment, a rubber component 43 is provided at the end of the piston rod 41 near the pilot hole 14. Under the action of the reset component 42, the pilot hole 14 can be sealed by the rubber component 43. The diameter of the pilot hole 14 is 0.8mm-1.2mm. According to the pressure formula F=P*S, where F is the pressure, S is the force-bearing area, and P is the pressure. That is, the smaller the force-bearing area of ​​the pilot hole 14, the smaller the pressure of the water flow on the rubber component 43, and correspondingly, the smaller the elastic force required by the reset component 42. Therefore, when the diameter of the pilot hole 14 is within the above range, the effect of controlling the opening and closing of the pilot valve 10 inlet through the opening and closing component 40 is effectively guaranteed.

[0050] In some embodiments, the initial position of the water distribution valve core 34 is such that the baffle 342 on the water distribution valve core 34 is located between the third outlet 32 ​​and the fourth outlet 33. When the water distribution valve 30 is in the initial position, the opening and closing assembly 40 is also in the initial position, that is, the rubber part 43 on the opening and closing assembly 40 completely blocks the pilot hole 14, and the first inlet 11 of the pilot valve 10 is in the closed state. In this embodiment, when the water distribution valve 30 is in its initial position, that is, when the flushing device is not working, if the flushing device needs to work, the drive component can drive the water distribution valve core 34 to rotate inside the water distribution valve 30. The water distribution valve core 34 drives the opening and closing component 40 away from the pilot hole 14, that is, the rubber part 43 on the piston rod 41 is disengaged from the pilot hole 14, the pilot hole 14 is opened, thereby opening the first water inlet 11, and the pilot valve 10 supplies water to the water distribution valve 30. When the water distribution valve core 34 rotates, the baffle 342 rotates accordingly. When the baffle 342 rotates, it can block the third water outlet 32, thereby allowing the water to be discharged through the fourth water outlet 33.

[0051] Furthermore, after flushing is completed at the fourth outlet 33, the drive assembly can drive the water distribution valve core 34 to rotate in the opposite direction, causing the water distribution valve core 34 to return to its initial position. When the water distribution valve core 34 returns to its initial position, due to the action of the reset component 42 on the piston cylinder, the opening and closing assembly 40 can be driven to return to its initial position, that is, the rubber component 43 abuts against and blocks the pilot hole 14, and the first water inlet 11 of the pilot valve 10 is closed, thereby stopping the pilot valve 10 from entering water. If drainage is required at the third outlet 32, simply control the drive assembly 37 to drive the water distribution valve 30 to continue rotating in the opposite direction, thereby completing the corresponding flushing work, which is the same as the drainage method of the fourth outlet 33 described above, and will not be elaborated further here.

[0052] In some embodiments, such as Figure 6 As shown, the water distribution valve core 34 also includes a turntable 343, which is located at the end of the rotating shaft 341 near the drive member 37. The turntable 343 abuts against the opening and closing assembly 40. A first arcuate protrusion 3431 and a second arcuate protrusion 3432 are provided on the edge of the turntable 343, and the first arcuate protrusion 3431 and the second arcuate protrusion 3432 are connected by a straight protrusion 3433. The diameter of the first arcuate protrusion 3431 is larger than the diameter of the second arcuate protrusion 3432. That is, the opening and closing assembly 40 is inserted into the turntable 343 and abuts against the inner walls of the first arcuate protrusion 3431, the second arcuate protrusion 3432, and the straight protrusion 3433. Specifically, the column 412 on the piston rod 41 is inserted into the turntable 343. The column 412 abuts against the inner sidewalls of the first arc protrusion 3431, the second arc protrusion 3432, and the straight protrusion 3433. Thus, when the drive member 37 drives the rotating shaft 341 to rotate, thereby driving the turntable 343 to rotate, it can drive the opening and closing piston rod 41 to move, thereby controlling the opening and closing state of the pilot hole 14 to control the opening and closing of the first water inlet 11.

[0053] In this embodiment, since the diameter of the first arc protrusion 3431 is larger than the diameter of the second arc protrusion 3432, when the column 412 on the piston rod 41 abuts against the inner wall of the first arc protrusion 3431, the other end of the opening and closing assembly 40 abuts against the pilot hole 14, thereby blocking the pilot hole 14. That is, the water distribution valve core 34 is in the initial state, and the first inlet 11 of the pilot valve 10 is closed. When the column 412 of the piston rod 41 is on the inner wall of the second arc protrusion 3432, the opening and closing assembly 40 disengages from the pilot hole 14, thereby opening the first inlet 11 of the pilot valve 10.

[0054] Wherein, the arc length of the first arc protrusion 3431 is less than the length of the second arc protrusion 3432, the first arc protrusion 3431 and the second arc protrusion 3432 are arranged opposite to each other, and both ends of the first arc protrusion 3431 are provided with straight protrusions 3433 that are connected to the two ends of the second arc protrusion 3432.

[0055] In this embodiment, when the drive component 37 drives the water distribution valve core 34 to rotate via the rotating shaft 341, the opening and closing assembly 40 has four working states:

[0056] First, the driving component 37 drives the water distribution valve core 34 to rotate, thereby causing the turntable 343 to rotate. The column 412 on the piston rod 41 slides on the inner wall of the first arc protrusion 3431. At this time, the rubber part 43 on the piston rod 41 abuts against the pilot hole 14 and blocks the pilot hole 14, and the first water inlet 11 of the pilot valve 10 is in the closed state. And the baffle 342 on the water distribution valve core 34 is located between the third water outlet 32 ​​and the fourth water outlet 33.

[0057] Second, the driving component 37 drives the water distribution valve core 34 to continue rotating. The turntable 343 drives the column 412 of the piston rod 41 to slide along the inner wall of the first arc protrusion 3431 to the inner wall of the straight protrusion 3433. The reset component 42 on the piston rod 41 is compressed. At this time, the rubber component 43 on the piston rod 41 gradually moves away from the pilot hole 14. The first water inlet 11 of the pilot valve 10 gradually opens. The first water inlet 11 begins to supply water to the pilot valve 10 and enters the water distribution valve 30 through the isolation valve 20. The drive assembly continues to drive the water distribution valve 30 to rotate, causing the column 412 on the piston rod 41 to slide along the inner wall of the straight protrusion 3433 to the inner wall of the second arc protrusion 3432. At this time, the opening and closing assembly 40 is completely disengaged from the pilot hole 14, and the baffle 342 on the water distribution valve core 34 blocks the third outlet 32, and the fourth outlet 33 opens, allowing the water flowing into the water distribution valve 30 to be discharged through the fourth outlet 33.

[0058] Third, after the fourth outlet 33 has finished draining, the drive assembly drives the water distribution valve 30 to rotate in the opposite direction. Under the action of the reset member 42, the column 412 on the piston rod 41 slides along the inner wall of the second arc protrusion 3432 and the straight protrusion 3433 to the inner wall of the first arc protrusion 3431, and the reset member 42 drives the piston rod 41 to abut against the pilot hole 14, thereby closing the first inlet 11 of the pilot valve 10, and the water distribution valve core 34 returns to the initial position.

[0059] Fourth, the drive assembly drives the water distribution valve core 34 to continue rotating in the opposite direction. The column 412 on the piston rod 41 slides along the first arc protrusion 3431 and the straight protrusion 3433 to the inner wall of the second arc protrusion 3432. At this time, the pilot hole 14 opens, and the first inlet 11 of the pilot valve 10 opens, allowing water to enter the water distribution valve 30. When the column 412 of the piston rod 41 is on the inner wall of the second arc protrusion 3432, the baffle 342 on the water distribution valve core 34 completely blocks the fourth outlet 33, and the water in the water distribution valve 30 can be discharged through the third outlet 32. After the third outlet 32 ​​has finished draining, the drive assembly can be controlled to drive the water distribution valve core 34 to rotate back to the initial position.

[0060] In a specific application scenario, when the flushing device is installed inside a smart toilet, the third outlet 32 ​​can be connected to the side flush port of the smart toilet, and the fourth outlet 33 can be connected to the water tank of the smart toilet. When the smart toilet needs to flush, the drive component 37 can drive the water distribution valve core 34 to rotate, thereby moving the opening and closing component 40 away from the pilot hole 14, opening the first water inlet 11 of the pilot valve 10, and the baffle 342 on the water distribution valve core 34 blocks the fourth outlet 33. When it is necessary to add water to the water tank, the baffle 342 on the water distribution valve core 34 can be controlled to block the third outlet 32, so that water flows out from the fourth outlet 33. The specific drainage method is the same as the working state of the opening and closing component 40, and will not be described in detail here.

[0061] In some embodiments, a first limiting member 38 is provided on the inner side wall of the water distribution valve 30 away from the drive member 37. A second limiting member 344 is provided at the end of the rotating shaft 341 away from the drive member 37. The first limiting member 38 and the second limiting member 344 are movably connected to limit the rotation angle of the water distribution valve core 34. Two first limiting members 38 and two corresponding second limiting members 344 may be provided. When the water distribution valve core 34 rotates, the rotation angle of the water distribution valve core 34 can be limited by the cooperation of the first limiting members 38 and the second limiting members 344. This avoids the situation where the third outlet 32 ​​or the fourth outlet 33 cannot be completely blocked.

[0062] Unlike existing technologies, this application discloses a smart toilet that includes a flushing device, which is the flushing device described in any of the above embodiments.

[0063] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A flushing device, characterized in that, The flushing device includes: A pilot valve, wherein the pilot valve is provided with a first inlet and a first outlet; An isolation valve is connected to the pilot valve. The isolation valve includes a second inlet and a second outlet, and the first outlet is connected to the second inlet. The water distribution valve includes a third inlet, a third outlet, and a fourth outlet. The third inlet is connected to the second outlet. The water distribution valve is equipped with a water distribution valve core, and the movement of the water distribution valve core realizes the opening and closing of the third outlet and the fourth outlet. An opening and closing assembly is disposed within the pilot valve. The water distribution valve core is connected to the opening and closing assembly and controls the state of the opening and closing assembly to control the pilot valve to open or close the first water inlet.

2. The flushing device according to claim 1, characterized in that, The water distribution valve is equipped with a first water inlet pipe and a second water inlet pipe; The isolation valve is provided with a third water inlet pipe, the first water inlet pipe is connected to the second water inlet pipe through the third water inlet pipe, the other end of the first water inlet pipe is connected to the pilot valve, and the second water inlet pipe is connected to the inside of the water distribution valve.

3. The flushing device according to claim 2, characterized in that, Through holes are provided on the side walls of the first water inlet pipe and the second water inlet pipe; The third water inlet pipe is provided with a groove corresponding to the through hole, and a connector that abuts against the groove is inserted into the through hole.

4. The flushing device according to claim 1, characterized in that, The flushing device includes a driving component, which is disposed at one end of the water distribution valve; The water distribution valve core includes a rotating shaft connected to the driving component. A baffle is provided on the side wall of the rotating shaft, and the baffle is disposed in contact with the inner side wall of the water distribution valve. The baffle is at least partially corresponding to the third outlet and the fourth outlet.

5. The flushing device according to claim 4, characterized in that, The water distribution valve core also includes a turntable, which is disposed at the end of the rotating shaft near the driving member, and the turntable abuts against the opening and closing assembly; The turntable has a first arc protrusion and a second arc protrusion at its edge, and the first arc protrusion and the second arc protrusion are connected by a straight protrusion; wherein, the diameter of the first arc protrusion is larger than the diameter of the second arc protrusion.

6. The flushing device according to claim 1, characterized in that, The pilot valve includes a first housing, on which a pilot hole is provided; The opening and closing assembly includes a piston rod and a reset member sleeved on the outer wall of the piston rod. One end of the reset member abuts against the inner wall of the pilot valve near the water distribution valve, and the other end abuts against the end of the piston rod near the first housing. The piston rod is provided with a rubber component that is movably connected to the pilot hole. The connection state between the rubber component and the pilot hole can control the opening and closing of the first water inlet.

7. The flushing device according to claim 2, characterized in that, The isolation valve includes a second housing with a vent hole communicating with the outside. A support is provided between the second housing and the third water inlet pipe. An isolation valve core is provided on the support and is movably connected to the support. The isolation valve core is at least partially located inside the third water inlet pipe.

8. The flushing device according to claim 4, characterized in that, A first limiting member is provided on the inner side wall of the water distribution valve away from the driving member; A second limiting member is provided at the end of the rotating shaft away from the driving member. The first limiting member and the second limiting member are movably connected to limit the rotation angle of the valve core.

9. The flushing device according to claim 1, characterized in that, The third outlet and the fourth outlet are arranged on the same plane.

10. A smart toilet, characterized in that, The smart toilet includes the flushing device as described in any one of claims 1-9.

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