Water spraying system of intelligent closestool

Abstract

The utility model discloses a water spraying system of an intelligent closestool, which comprises a water inlet component, a water outlet component communicated with the closestool and a connecting piece communicated with the water inlet component and the water outlet component, and the water outlet component comprises a first water pipe for transporting water to an upper nozzle of the closestool and a second water pipe for transporting water to a lower nozzle of the closestool. The connecting piece comprises a first connector communicated with the first water pipe, a second connector communicated with the second water pipe and a third connector connected with the water inlet assembly, and a switch valve used for controlling connection or disconnection of the second water pipe and the water inlet assembly is arranged between the second connector and the second water pipe. According to the water spraying system of the intelligent closestool, the switching valve used for controlling connection or disconnection of the second water pipe and the water inlet assembly is arranged between the second connector and the second water pipe, the problem that noise is too large when a lower nozzle of the closestool flushes water is solved, and the water spraying effect is improved while the water outlet flow of an upper nozzle of the closestool is guaranteed. And the effect of weakening noise generated when the lower nozzle of the closestool discharges water is also achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bathroom equipment, especially a water spraying system of an intelligent closestool. BACKGROUND

[0002] In the flushing system of the existing closestool, there is a design of a water spraying system of a closestool, which makes the water inlet simultaneously connect the upper nozzle of the closestool and the lower nozzle of the closestool through the structure of a tee pipe. However, the simultaneous water discharge of the upper and lower nozzles of the closestool will result in a small water flow of the upper nozzle of the closestool, which cannot realize the effect of uniform circle brushing of the upper nozzle of the closestool. In order to solve this problem and ensure that the upper nozzle of the closestool has sufficient water flow, a water tank is connected to a reversing valve through a water supply pipe, the reversing valve is connected to an upper flushing pipe and a lower flushing pipe respectively, and the reversing valve can switch the position of the reversing valve to connect the water supply pipe to the upper flushing pipe or the lower flushing pipe. The water outlet end of the upper flushing pipe is directly connected to the outside, which can realize the flushing of the closestool wall. The water outlet end of the lower flushing pipe will directly flush the water into the closestool sewer, and the water will be sealed by the water stored in the closestool under normal circumstances.

[0003] The prior art CN116753334A discloses a "reversing valve of closestool and closestool", and specifically discloses a reversing valve of a closestool. The reversing valve is arranged in the flushing system of the closestool. The reversing valve is connected to the water inlet pipe of the closestool through a water inlet pipeline. The water inlet pipe is used to connect the flushing water pumped from the water tank of the closestool by the submersible pump. The reversing valve comprises a reversing valve body and a reversing rotor. The reversing valve body forms a reversing cavity inside. In addition to the water inlet pipeline, the reversing valve body is also provided with a lower flushing pipeline and an upper flushing pipeline. The water inlet pipeline, the upper flushing pipeline and the lower flushing pipeline are connected to the reversing cavity respectively. In addition, the reversing valve body also forms an exhaust passage connecting the upper flushing pipeline and the lower flushing pipeline.

[0004] In the above-mentioned application, the submersible pump is started to make the reversing rotor be in the position of upper flushing, and the upper flushing is performed first. The water flow flows into the water inlet pipeline and flows out of the upper flushing pipeline through the conversion cavity. Since the water flow is fast during the process of passing through the upper flushing pipeline, negative pressure occurs in the upper flushing pipeline. Therefore, the water flow cannot flow into the lower flushing pipeline through the exhaust passage. In addition, the air in the lower flushing pipeline can be sucked into the upper flushing pipeline. However, when the flushing is about to end, the speed of the water flow flowing to the upper flushing pipeline will gradually slow down. Even after the flushing is completed, a small amount of liquid remaining in the water inlet pipeline and the reversing cavity will continue to flow slowly to the upper flushing pipeline due to inertia. During this process, the negative pressure generated in the upper flushing pipeline due to the fast water flow will disappear. Therefore, the water flow in the upper flushing pipeline is easy to flow into the lower flushing pipeline through the exhaust passage connecting the upper flushing pipeline and the lower flushing pipeline. This will cause the water flow in the upper flushing pipeline to be lost, which will weaken the effect of the implementation of the reversing valve on the above-mentioned application.

[0005] And, the application also mentioned that, because negative pressure is generated in the upflush pipe, so that air in the downflush pipe can be sucked out through the exhaust passage, so when downflush water is performed in the downflush pipe, the gas in the downflush pipe has been largely exhausted, thus greatly reducing the air-liquid mixing water outlet time, and obviously eliminating the water outlet noise caused by containing a large amount of air when the water is out, but the upflush pipe is connected with the upflush pipe of the toilet, and the water outlet end of the upflush pipe of the toilet can directly guide the flushing water to the inner wall of the toilet, so it can be known that the upflush pipe is directly connected with the outside, and in the process of converting the rotor from the upflush pipe to the downflush pipe, air can enter the reversing chamber through the water outlet end of the upflush pipe, and then enter the downflush pipe through the exhaust passage, so when downflush water is performed, the water outlet noise caused by containing a large amount of air when the water is out will also occur. Content of the utility model

[0006] The utility model discloses want to reach the purpose is to provide a kind of water spraying system of intelligent toilet, by being used for controlling the switch valve that second water pipe and inlet water component are connected or disconnected between second interface and second water pipe, solve the problem of excessive noise when toilet lower nozzle flushes, reach the effect that while guaranteeing toilet upper nozzle water flow, the noise generated when toilet lower nozzle is out of water is also weakened.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of water spraying system of intelligent toilet, including inlet water component, the water outlet component being connected with toilet and the connecting piece being connected between inlet water component and water outlet component, water outlet component includes the first water pipe for transporting water to toilet upper nozzle and the second water pipe for transporting water to toilet lower nozzle, connecting piece includes the first interface being connected with first water pipe, the second interface being connected with second water pipe and the third interface being connected with inlet water component, and switch valve for controlling second water pipe and inlet water component are connected or disconnected is provided between second interface and second water pipe.

[0008] The utility model discloses the following advantages after adopting the above technical scheme: the connecting piece includes the third interface of connecting with the water inlet component, and water is transported to the connecting piece through the water inlet component, and the connecting piece further includes the first interface of communicating with the first water pipe, the second interface of communicating with the second water pipe, the first interface, the first water pipe and the upper nozzle of closestool always keep the communicating state, the second water pipe communicates with the lower nozzle of closestool, and the switch valve for independently controlling the communication or disconnection between the second water pipe and the water inlet component is arranged between the second interface and the second water pipe, so that the independent opening and closing of the lower nozzle of closestool are realized, when closestool is flushed, the switch valve is closed first, and all water flows out from the upper nozzle of closestool through the first water pipe, so that enough water flow is ensured when the upper nozzle of closestool brushes and cleans closestool. In order to make closestool flush more cleanly, closestool is flushed again through the lower nozzle of closestool, but the sound of flushing is too large when the lower nozzle is used alone, and noise is formed, in order to weaken the noise and prevent the user from having a bad use experience, so the switch valve is opened, and the upper nozzle of closestool flushes closestool at the same time, so that the sound of the upper nozzle of closestool brushing and flushing closestool can cover the sound of the lower nozzle of closestool flushing closestool, the purpose of reducing the noise of flushing is achieved, closestool can be cleaned better, and finally the switch valve is closed again, and water flows out from the upper nozzle of closestool, so as to supplement the water seal in closestool. The water seal can not only block the odor in the sewer pipe and prevent the reverse smell, but also play a buffering role when defecating.

[0009] Further, the switch valve includes a switch valve body, a switch valve core installed in one end of the switch valve body, and a motor for controlling rotation of the switch valve core, the switch valve core includes a baffle, the switch valve body is provided with a water flow communication area for controlling water inflow by rotation of the baffle, the switch valve body includes a water inlet and a water outlet communicating with the water flow communication area, and the switch valve has a closed state in which the baffle blocks the water inlet and an open state in which the baffle rotates to make the water inlet and the water outlet communicate through the water flow communication area.

[0010] According to the foregoing technical scheme, the switch valve body is provided with the water flow communication area, the switch valve body includes the water inlet and the water outlet communicating with the water flow communication area, when the motor drives the baffle to rotate and block the water inlet, water flow cannot flow into the water flow communication area from the water inlet, in this state, the switch valve cuts off the water flow in the water flow communication area, and at this time, the switch valve is in the closed state; when the motor drives the baffle to rotate, the water inlet and the water outlet communicate through the water flow communication area, at this time, water flow flows into the water flow communication area from the water inlet and flows into the second water pipe from the water outlet, and at this time, the switch valve is in the open state. Through the driving of the motor, the angle of rotation of the switch valve core driven by the baffle can be accurately controlled, so that the switch valve can be quickly switched between the open state and the closed state according to different use requirements in the working state of the closestool, to accurately control the on-off of the water flow, and the motor-driven switch valve core has higher reliability than the manually-driven switch valve core.

[0011] Further, the water flow communication area is open on one side to facilitate installation of the switch valve core, the switch valve includes a switch valve cover, the switch valve cover includes a mounting through hole for mounting the other end of the switch valve core, and the switch valve core is in sealing fit with the mounting through hole.

[0012] According to the above technical scheme, the water flow communication area is open on one side to facilitate installation of the switch valve core, so that the installation position of the switch valve core can be easily observed by the installer, thereby improving the installation efficiency and accuracy. The switch valve further includes a switch valve cover for covering the opening of the water flow communication area, and the switch valve cover is provided with a mounting through hole. The mounting through hole can be used not only for connecting the other end of the switch valve core, but also for rotating the switch valve core along the axis of the mounting through hole. In order to ensure the sealing of the water flow communication area, the switch valve core is in sealing fit with the mounting through hole, thereby preventing water flow from leaking from the mounting through hole when passing through the water flow communication area, and ensuring the sealing of the switch valve structure.

[0013] Further, the outer periphery of the switch valve cover is provided with a plurality of first lugs, the switch valve body is provided with a plurality of second lugs corresponding to the first lugs, the first lugs and the second lugs are connected by fasteners to fix the switch valve cover on the switch valve body to cover the water flow communication area, a first sealing member is installed between the switch valve cover and the switch valve body, and the motor is installed at the end of the switch valve cover away from the switch valve body.

[0014] According to the above technical scheme, the first lugs and the second lugs are connected by fasteners to fix the switch valve cover on the switch valve body, thereby ensuring stable connection between the two. A first sealing member is installed between the switch valve cover and the switch valve body, which can be tightly placed between the two under the pressure of the switch valve cover and the switch valve body, thereby achieving good sealing and preventing water flow from leaking at the connection between the two when passing through the water flow communication area.

[0015] Further, the water flow communication area includes a flat surface provided with a water inlet and an arc surface provided with a water outlet, the arc surface is arranged along the rotation path of the baffle and avoids the baffle, the baffle is rotated to the flat surface to close the water inlet, so that the switch valve changes from an open state to a closed state, the water inlet and the water outlet are oppositely arranged, and the rotation angle of the baffle is not less than 90°.

[0016] According to the above technical scheme, the baffle is used to control the communication between the water inlet and the water outlet, and the arc surface is arranged along the rotation path of the baffle, so that the baffle does not interfere with the arc surface during rotation. Since the water inlet and the water outlet are oppositely arranged, the rotation angle of the baffle is limited to not less than 90°, so that the communication between the water inlet and the water outlet can be realized. Otherwise, the water flow will stay in the space formed by the baffle and the water inlet and cannot flow into the second water pipe through the water outlet.

[0017] Further, the switch valve is arranged at the water inlet end of the second water pipe, the switch valve body is provided with a water inlet joint and a water outlet joint, the water inlet is penetrated through the water inlet joint, the water outlet is penetrated through the water outlet joint, the water inlet joint is connected with the second interface, and the water outlet joint is connected with the second water pipe.

[0018] According to the foregoing technical scheme, the switch valve is mainly used for controlling the on-off of water flow into the second water pipe, so when the switch valve is closed, the water flow will flow to the upper nozzle of the closestool through the first water pipe, in order to ensure the water flow of the first water pipe, the whole water flow is made to flow to the first water pipe as much as possible, so the switch valve is arranged at the water inlet end of the second water pipe according to the natural flow of the water flow, so that the water flow can be blocked at the water inlet end of the second water pipe and cannot continue to flow into the second water pipe, thereby saving unnecessary flow distribution.

[0019] Further, the water inlet end of the switch valve body is provided with a first limiting groove, and the second interface is provided with a limiting convex rib matched with the first limiting groove to limit the circumferential rotation of the switch valve body and the second interface.

[0020] According to the foregoing technical scheme, the switch valve body is provided with the first limiting groove, and the second interface is provided with the limiting convex rib matched with the first limiting groove, the limiting groove and the limiting convex rib are matched to limit the circumferential rotation between the switch valve body and the second interface, thereby reducing the loosening caused by the rotation between the switch valve body and the second interface due to vibration or water flow impact, and the matching between the first limiting groove and the limiting convex rib also avoids the deviation of the switch valve body and the second interface during installation, and improves the installation efficiency, that is, the installation accuracy of the switch valve body and the second interface can be realized by accurately connecting the first limiting groove and the limiting convex rib for installation.

[0021] Further, the connecting piece includes a fourth interface, and the fourth interface is provided with a vacuum valve, the vacuum valve includes a vacuum valve body and a vacuum valve core, the vacuum valve core is slidingly connected to the vacuum valve body and floats up and down according to the pressure change in the connecting piece, the vacuum valve body is provided with an air inlet channel for controlling whether air is introduced according to the up-and-down floating of the vacuum valve core, the vacuum valve body is provided with an air inlet, and the vacuum valve includes an air inlet state of connecting the air inlet and the fourth interface and a sealing state of disconnecting the air inlet and the fourth interface.

[0022] The technical scheme is adopted, the air inlet of the known vacuum valve is connected with the fourth interface through the air inlet channel, the vacuum valve core is slidably connected with the vacuum valve body, since the third interface of the connecting piece is communicated with the water inlet assembly, when the toilet is in the flushing state, in the process that the water inlet assembly supplies water to the connecting piece and the first water pipe and the second water pipe through the connecting piece, when the water flows through the fourth interface of the connecting piece, the pressure at the fourth interface is increased, so that the vacuum valve core is floated upward in the vacuum valve body, and the upward floating of the vacuum valve core cuts off the communication between the air inlet and the fourth interface, at this time, the vacuum valve is in the sealed state; further, when the toilet flushing is finished, the water inlet assembly no longer supplies water, when the water flow at the fourth interface is gradually reduced, the pressure at the fourth interface is reduced, so that the vacuum valve core falls downward in the vacuum valve body, and the downward falling of the vacuum valve core makes the air inlet and the fourth interface communicated through the air inlet channel, at this time, the water inlet assembly no longer supplies water, the negative pressure is generated in the process that the water in the connecting piece and the water inlet assembly falls back, since the air inlet is communicated with the fourth interface, the air outside can be sucked into the connecting piece through the air inlet. After the toilet flushing is finished, since the vacuum valve is arranged in the connecting piece, when the negative pressure is generated, the air outside is allowed to enter the connecting piece through the communication between the air inlet and the fourth interface, so that the situation that the dirt in the toilet is sucked into the first water pipe and the second water pipe through the toilet nozzle is avoided. Therefore, the vacuum valve effectively prevents the problem that the dirt is sucked into the water pipe due to the negative pressure generated in the connecting piece after the toilet flushing is finished. Through the pressure change in the connecting piece, the vacuum valve automatically adjusts the state of the air inlet channel, ensures the pressure balance in the connecting piece, and guarantees the cleaning and sanitation of the water spraying system of the intelligent toilet.

[0023] Further, the vacuum valve comprises a vacuum valve seat, the vacuum valve body is installed on the vacuum valve seat, and the vacuum valve seat is fixedly installed on the fourth interface.

[0024] Further, the connecting piece comprises a first part and a second part, the first part and the second part are in an integral structure; or, the first part and the second part are detachably connected.

[0025] The technical scheme is adopted, the connecting piece comprises a first part and a second part, the first part and the second part are in an integral structure, since there is no gap in the integral structure, the overall structural strength is high, and a large pressure can be borne, so that the overall connecting strength of the connecting piece is improved, and since there is no additional connecting point, water leakage is avoided, the sealing property is guaranteed, meanwhile, the integral structure reduces the assembly steps, and the use is more convenient; the first part and the second part are detachably connected, which is more convenient for assembly and disassembly, and the connecting piece can be conveniently repaired and replaced, when the connecting piece is damaged, only the damaged part needs to be replaced, the maintenance cost is reduced, and the connecting piece can be replaced according to the caliber of the water pipe of different toilets, the flexibility of the use of the connecting piece is improved.

[0026] Further, the connecting piece comprises a cleaning port, a plug is arranged in the cleaning port, and the cleaning port and the plug are sealed by a second sealing element.

[0027] By using the above technical scheme, the cleaning port can be used to clean the inside of the connecting piece, and the plug is arranged in the cleaning port to seal the cleaning port, and the second sealing element is arranged between the plug and the cleaning port to ensure that water in the connecting piece cannot leak from the cleaning port, thereby ensuring the sealing of the cleaning port. BRIEF DESCRIPTION OF DRAWINGS

[0028] The utility model will be further described below in combination with the drawings:

[0029] Figure 1 It is a structure schematic view of the water spraying system of the intelligent closestool of the utility model;

[0030] Figure 2 It is an explosion drawing of the switch valve of the utility model;

[0031] Figure 3 It is a sectional view of the vacuum valve of the utility model;

[0032] Figure 4 It is an explosion drawing of the connecting piece of the utility model;

[0033] Figure 5 It is another embodiment schematic view of the connecting piece of the utility model. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0035] The terms "first", "second", and the like (if any) in the description and claims of the utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence, even if "second" is used in front of a certain technical feature to distinguish, it does not mean that it must have "first". It should be understood that in the utility model, "include" and "have" and any variation thereof are intended to cover non-exclusive inclusion. It should be understood that in the utility model, "multiple" refers to two or more than two. And / or is only a description of the relationship between the associated objects, which means that there can be three relationships, for example, X and / or Y can represent: three cases of X alone, X and Y exist at the same time, and Y alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship. "Include X, Y and Z", "include X, Y, Z" means that X, Y and Z are included, "include X, Y or Z" means that one of X, Y and Z is included, "include X, Y and / or Z" means that any one or any two or three of X, Y and Z is included.

[0036] The technical scheme of the utility model will be described in detail below with specific examples. The following specific examples can be combined or replaced according to actual conditions, and the same or similar concepts or processes may not be described in some examples.

[0037] As shown in Figure 1 and Figure 4 The utility model provides a kind of water injection system of intelligent closestool, including water inlet component 5, with the water outlet component of closestool intercommunication and the connecting piece 1 of intercommunication water inlet component 5 and water outlet component, water outlet component includes the first water pipe 31 of transporting water to closestool upper nozzle (the direction described in embodiment is consistent with the direction indicated in drawing) and the second water pipe 32 of transporting water to closestool lower nozzle, connecting piece 1 includes the first interface 11 of intercommunication with first water pipe 31, the second interface 12 of intercommunication with second water pipe 32 and the third interface 13 of connection with water inlet component 5, second interface 12 and second water pipe 32 between being equipped with the switch valve 2 for controlling second water pipe 32 and water inlet component 5 intercommunication or disconnection.

[0038] It can be understood that the connecting piece 1 comprises a third interface 13 connected with the water inlet assembly 5, water is transported to the connecting piece 1 through the water inlet assembly 5, the connecting piece 1 further comprises a first interface 11 in communication with the first water pipe 31, a second interface 12 in communication with the second water pipe 32, the first interface 11 and the first water pipe 31 are always in communication with the upper nozzle of the closestool, the second water pipe 32 is in communication with the lower nozzle of the closestool, a switch valve 2 for independently controlling the communication or disconnection between the second water pipe 32 and the water inlet assembly 5 is arranged between the second interface 12 and the second water pipe 32, so as to realize the independent opening and closing of the lower nozzle of the closestool, when the closestool is flushed, the switch valve 2 is closed first, so that all water flows out from the upper nozzle of the closestool through the first water pipe 31, so as to ensure that the upper nozzle of the closestool has sufficient water flow when cleaning the inner wall of the closestool. In order to make the closestool flush more cleanly, the closestool will be flushed again through the lower nozzle of the closestool, but the separate use of the lower nozzle will cause the flushing sound to be too loud, forming noise, in order to weaken the noise and prevent the user from having a bad use experience, the switch valve 2 is opened, so that the upper nozzle of the closestool flushes the closestool at the same time, so that the sound of the upper nozzle of the closestool flushing the closestool can cover the sound of the lower nozzle of the closestool flushing the closestool, so as to achieve the purpose of reducing the flushing noise, and the closestool can be better cleaned, and finally the switch valve 2 is closed, so that water flows out from the upper nozzle of the closestool, so as to supplement the water seal in the closestool. The water seal not only blocks the odor in the sewer pipe to avoid reverse taste, but also plays a buffering role when defecating.

[0039] Optionally, the connecting piece 1 comprises a first part 14 and a second part 15, the first part 14 and the second part 15 are in an integrated structure in this embodiment, since the integrated structure has no gap, the overall structural strength is higher, and can withstand greater pressure, thereby improving the overall connection strength of the connecting piece 1, and since there is no additional connection point, water leakage is avoided, the sealing performance is ensured, at the same time, the integrated structure reduces the assembly steps, and is more convenient to use.

[0040] In other embodiments, as shown in Figure 5 the first part 14 and the second part 15 can be detachably connected through screws or clamping, such an installation mode is more convenient to assemble and disassemble, and the connecting piece 1 can be conveniently maintained and replaced, when the connecting piece 1 is damaged, only the damaged part needs to be replaced, the maintenance cost is reduced, and the connecting piece 1 can be replaced according to the caliber of the water pipe of different closestools, thereby improving the flexibility of the connecting piece 1.

[0041] At the same time, the first interface 11, the second interface 12 and the third interface 13 mentioned above are in an integrated structure with the connecting piece 1 in this embodiment, but can also be separately arranged with the connecting piece 1, for example, in the form of a hose inserted into the connecting piece 1.

[0042] After a long time, dirt is easy to exist in the connecting piece 1, so the connecting piece 1 comprises a cleaning port 16, a plug 161 is arranged in the cleaning port 16, the cleaning port 16 and the plug 161 are sealed by a second sealing element 162, the second sealing element 162 is preferably a sealing ring, the cleaning port 16 can be used to clean the inside of the connecting piece 1, and the plug 161 arranged in the cleaning port 16 is used to close the cleaning port 16, in order to ensure the sealing of the cleaning port 16, the second sealing element 162 is arranged between the plug 161 and the cleaning port 16, so that the water in the connecting piece 1 cannot leak from the cleaning port 16, and the sealing of the cleaning port 16 is ensured.

[0043] It should be noted that the following is the use process after the switch valve 2 is added:

[0044] Step 1, execute the upper nozzle flushing of the closestool: first, close the switch valve 2, at this time, the second water pipe 32 is not communicated with the water inlet assembly 5, since the first interface 11 and the first water pipe 31 always maintain a communication state with the upper nozzle of the closestool, the closestool is flushed by the upper nozzle, since the second water pipe 32 is not communicated with the water inlet assembly 5 at this time, the water flow is discharged from the upper nozzle of the closestool, so that the upper nozzle of the closestool has sufficient water flow when cleaning the closestool, avoiding that a part of the water flow is branched to the lower nozzle of the closestool, so that the water flow of the upper nozzle of the closestool is small, and the closestool cannot be fully cleaned.

[0045] Step 2, execute the upper nozzle flushing and lower nozzle flushing of the closestool simultaneously: then, open the switch valve 2, at this time, the second water pipe 32 is communicated with the water inlet assembly 5, the water flow is branched in the connecting piece 1, a part of the water flow is discharged from the lower nozzle of the closestool through the second water pipe 32, and the other part of the water flow is discharged from the upper nozzle of the closestool through the first water pipe 31, the closestool is flushed by the upper nozzle, and the closestool is flushed by the lower nozzle simultaneously, since a large noise is generated when the closestool is cleaned by the lower nozzle alone, the closestool is cleaned by the upper nozzle and the lower nozzle simultaneously, so that the closestool can be cleaned sufficiently, and the noise of the water flow of the lower nozzle of the closestool is covered by the noise of the closestool when the closestool is cleaned by the upper nozzle, so that the noise of the closestool when flushing is effectively reduced.

[0046] Step 3, execute the upper nozzle flushing of the closestool: finally, close the switch valve 2 of the lower nozzle, and the upper nozzle continues to discharge water, the water flow is used to supplement the water seal in the closestool.

[0047] In addition, the step 3 has another function: the upper nozzle of the closestool is provided with a foaming device, the closestool is provided with a foaming box for storing a foaming agent, the foaming agent in the foaming box can be conveyed to the foaming device through an agent inlet assembly to be foamed, and the foam generated by the foaming device is sprayed out of the upper nozzle of the closestool by the water flow in the first water pipe 31.

[0048] The switch in the agent feeding assembly is used to control whether the foaming agent is delivered to the foaming device, and the user can select whether to use the cleaning agent to clean the toilet according to the need.

[0049] Briefly, the use process is as follows:

[0050] When the upper nozzle and the lower nozzle of the toilet flush at the same time, the step 3 is implemented. If the user does not want to use the foaming agent to clean the toilet, the switch in the agent feeding assembly for delivering the foaming agent to the foaming assembly is in the closed state, and at this time, the upper nozzle of the toilet outputs water flow, and after brushing the inner wall of the toilet, the water seal is formed. If the user needs to use the foaming agent to clean the toilet, the switch in the agent feeding assembly for delivering the foaming agent to the foaming assembly is in the open state, and at this time, the upper nozzle of the toilet outputs foam, and the inner wall of the toilet revolves to form bubbles.

[0051] By using the foaming agent, the dirt in the toilet can be quickly decomposed, the toilet is more sanitary, and the environment for breeding bacteria is reduced. The toilet can also eliminate the odor in the toilet through sterilization and disinfection, and leave a fresh smell in the toilet, thereby improving the air quality of the bathroom. The foam layer generated in the toilet can wrap the dirt on the water seal, effectively preventing water splashing, and increasing the comfort and safety of use.

[0052] For example, Figure 2As shown, the switch valve 2 comprises a switch valve body 22, a switch valve core 21 mounted in the switch valve body 22, and a motor 23 for controlling the rotation of the switch valve core 21. The switch valve core 21 comprises a baffle 211, and the switch valve body 22 is provided with a water flow communication area 221 for controlling the water inflow by the rotation of the baffle 211. The switch valve body 22 comprises a water inlet 222 and a water outlet 223 which are in communication with the water flow communication area 221. The switch valve 2 has a closed state in which the baffle 211 blocks the water inlet 222, and an open state in which the baffle 211 is rotated to make the water inlet 222 communicate with the water outlet 223 through the water flow communication area 221. When the motor 23 drives the baffle 211 to rotate and block the water inlet 222, the water flow cannot flow from the water inlet 222 into the water flow communication area 221. In this state, the switch valve 2 cuts off the water flow in the water flow communication area 221, and this is the closed state. When the motor 23 drives the baffle 211 to rotate and make the water inlet 222 and the water outlet 223 communicate through the water flow communication area 221, the water flow flows from the water inlet 222 into the water flow communication area 221 and then flows from the water outlet 223 into the second water pipe 32, and this is the open state. Through the driving of the motor 23, the angle of rotation of the baffle 211 driven by the switch valve core 21 can be accurately controlled, so that the switch valve 2 can be quickly switched between the open state and the closed state according to different use requirements in the working state of the closestool, to accurately control the on-off of the water flow. Compared with manually driving the switch valve core 21, the motor 23 driving the switch valve core 21 improves the reliability of the switch valve 2.

[0053] Preferably, the switch valve 2 is arranged at the water inlet end of the second water pipe 32, and the switch valve body 22 is provided with a water inlet connector 224 and a water outlet connector 225. The water inlet 222 penetrates through the water inlet connector 224, and the water outlet 223 penetrates through the water outlet connector 225. The water inlet connector 224 is connected with the second interface 12, and the water outlet connector 225 is connected with the second water pipe 32.

[0054] The switch valve 2 is mainly used for controlling the on-off of the water flow into the second water pipe 32. Therefore, when the switch valve 2 is closed, the water flow will flow to the nozzle on the closestool through the first water pipe 31. In order to ensure the water flow of the first water pipe 31, as much water flow as possible should flow to the first water pipe 31. Therefore, according to the natural flow of the water flow, the switch valve 2 is arranged at the water inlet end of the second water pipe 32, so that the water flow can be blocked at the water inlet end of the second water pipe 32 and cannot continue to flow into the second water pipe 32, thereby saving unnecessary water flow.

[0055] In order to facilitate the installation of the switch valve core 21, the water flow communication area 221 is provided with an opening on one side, so that the installation personnel can easily observe the installation position of the switch valve core 21, thereby improving the installation efficiency and the installation accuracy. The switch valve 2 further comprises a switch valve cover 24 for covering the opening of the water flow communication area 221. The switch valve cover 24 is provided with a mounting through hole 241. The mounting through hole 241 can be used not only for connecting the other end of the switch valve core 21, but also for rotating the switch valve core 21 along the axis of the mounting through hole 241.

[0056] Further, the sealing of the water flow communication area 221 is ensured by sealingly connecting the switch valve core 21 and the mounting through hole 241, so as to prevent water flow from leaking from the mounting through hole 241 when passing through the water flow communication area 221, thereby ensuring the sealing of the structure of the switch valve 2.

[0057] Meanwhile, the outer circumferential surface of the switch valve cover 24 is provided with a plurality of first lugs 242, and the switch valve body 22 is provided with a plurality of second lugs 226 corresponding to the first lugs 242. The first lugs 242 and the second lugs 226 are connected by fasteners to fix the switch valve cover 24 on the switch valve body 22 to cover the water flow communication area 221, thereby ensuring the stable connection between the two. The fasteners are preferably bolts. A first sealing member 243 is mounted between the switch valve cover 24 and the switch valve body 22. The first sealing member 243 is preferably a sealing ring. Under the pressure of the switch valve cover 24 and the switch valve body 22, the first sealing member 243 can be tightly placed between the two, thereby achieving good sealing and avoiding leakage at the connection between the two when water flows in the water flow communication area 221.

[0058] The water flow communication area 221 comprises a flat surface provided with a water inlet 222 and an arc surface provided with a water outlet 223. The arc surface is arranged along the rotation path of the baffle 211 and avoids the baffle 211. The baffle 211 is rotated to the flat surface to close the water inlet 222, so that the switch valve 2 changes from an open state to a closed state. The water inlet 222 is oppositely arranged with the water outlet 223. The angle of rotation of the baffle 211 is not less than 90°.

[0059] The above-mentioned baffle 211 is used to control the communication between the water inlet 222 and the water outlet 223. The arc surface is arranged along the rotation path of the baffle 211, so that the baffle 211 does not interfere with the arc surface during rotation. Since the water inlet 222 is oppositely arranged with the water outlet 223, the rotation angle of the baffle 211 is limited to not less than 90°, so that the communication between the water inlet 222 and the water outlet 223 can be achieved. Otherwise, the water flow will stay in the space formed by the baffle 211 and the water inlet 222 and cannot flow into the second water pipe 32 through the water outlet 223.

[0060] The water inlet end of the switch valve body 22 is provided with a first limiting groove 227, and the second interface 12 is provided with a limiting convex rib 121 matched with the first limiting groove 227 to limit the circumferential rotation of the switch valve body 22 and the second interface 12, thereby reducing the loosening caused by vibration or water flow impact, avoiding the deviation of the switch valve body 22 and the second interface 12 during installation, and improving the installation efficiency. Only accurate butt joint of the first limiting groove 227 and the limiting convex rib 121 is needed to realize the accurate installation of the valve body and the second interface 12.

[0061] It should be noted that the water inlet end of the switch valve body is the end connected with the second interface, and the water inlet end of the switch valve body is sleeved with the second interface to stop rotation and positioning, thereby preventing mutual rotation.

[0062] As shown in Figure 3 and Figure 4 The connecting piece 1 includes a fourth interface 17, and the fourth interface 17 is provided with a vacuum valve 4. The vacuum valve 4 includes a vacuum valve body 41 and a vacuum valve core 42. The vacuum valve core 42 is slidingly connected to the vacuum valve body 41 and floats up and down according to the pressure change in the connecting piece 1. The vacuum valve body 41 is provided with an air inlet passage 411 (as shown by the dashed line in Figure 3 ) controlled by the up-and-down floating of the vacuum valve core 42 to determine whether the air inlet passage 411 is in an air inlet state or a sealing state. The vacuum valve body 41 is provided with an air inlet 43. The vacuum valve 4 includes an air inlet state in which the air inlet 43 and the fourth interface 17 are communicated and a sealing state in which the air inlet 43 and the fourth interface 17 are not communicated.

[0063] The use principle of the vacuum valve 4 is as follows: the air inlet 43 of the vacuum valve 4 is connected with the fourth interface 17 through the air inlet channel 411, and the vacuum valve core 42 is slidingly connected with the vacuum valve body 41; since the third interface 13 of the connecting piece 1 is communicated with the water inlet assembly 5, when the toilet is in the flushing state, the water inlet assembly 5 supplies water into the connecting piece 1 and then supplies water to the first water pipe 31 and the second water pipe 32 through the connecting piece 1, and when the water flows through the fourth interface 17 of the connecting piece 1, the pressure at the fourth interface 17 is increased, so that the vacuum valve core 42 is floated upward in the vacuum valve body 41, and the upward floating of the vacuum valve core 42 cuts off the communication between the air inlet 43 and the fourth interface 17, at this time, the vacuum valve 4 is in the sealing state; then when the toilet flushing is finished, the water inlet assembly 5 no longer supplies water, and when the water flow at the fourth interface 17 is gradually reduced, the pressure at the fourth interface 17 is reduced, so that the vacuum valve core 42 is fallen downward in the vacuum valve body 41, and the downward falling of the vacuum valve core 42 makes the air inlet 43 communicated with the fourth interface 17 through the air inlet channel 411, at this time, the water inlet assembly 5 no longer supplies water, and the negative pressure is generated in the process that the water in the connecting piece 1 and the water inlet assembly 5 is gradually fallen back, since the air inlet 43 is communicated with the fourth interface 17, the air outside can be sucked into the connecting piece 1 through the air inlet 43. After the toilet flushing is finished, since the vacuum valve 4 is arranged in the connecting piece 1, when the negative pressure is generated, the air inlet 43 is communicated with the fourth interface 17, and the air outside is allowed to enter the connecting piece 1, so that the situation that the dirt in the toilet is sucked into the first water pipe 31 and the second water pipe 32 through the nozzle of the toilet is avoided. Therefore, the vacuum valve 4 effectively prevents the dirt from being sucked into the water pipe due to the negative pressure generated in the connecting piece 1 after the toilet flushing is finished. Through the pressure change in the connecting piece 1, the vacuum valve 4 automatically adjusts the state of the air inlet channel 411, ensures the pressure balance in the connecting piece 1, and guarantees the cleaning and sanitation of the water spraying system of the intelligent toilet.

[0064] The vacuum valve 4 comprises a vacuum valve seat 44, the vacuum valve body 41 is installed on the vacuum valve seat 44, and the vacuum valve seat 44 is fixedly installed on the fourth interface 17.

[0065] In addition to the preferred embodiments, the utility model also has other implementation manners, and all other embodiments obtained by the person skilled in the art without creative labor based on the embodiments in the utility model belong to the range of the utility model claimed.

Claims

1. A water spraying system of a smart toilet, comprising a water inlet assembly, a water outlet assembly in communication with the toilet, and a connecting piece in communication with the water inlet assembly and the water outlet assembly, the water outlet assembly comprising a first water pipe for transporting water to an upper nozzle of the toilet and a second water pipe for transporting water to a lower nozzle of the toilet, characterized in that, The connecting piece comprises a first interface communicating with the first water pipe, a second interface communicating with the second water pipe, and a third interface connected with the water inlet assembly, and a switch valve is arranged between the second interface and the second water pipe to control the communication or disconnection between the second water pipe and the water inlet assembly.

2. The water jet system of the intelligent toilet according to claim 1, wherein, The switch valve comprises a switch valve body, a switch valve spool installed in the switch valve body, and a motor for controlling the rotation of the switch valve spool. The switch valve spool comprises a baffle. The switch valve body is provided with a water flow communication area for controlling the water inflow according to the rotation of the baffle. The switch valve body comprises a water inlet and a water outlet communicating with the water flow communication area. The switch valve has a closed state in which the baffle blocks the water inlet and an open state in which the baffle rotates to make the water inlet and the water outlet communicate through the water flow communication area.

3. The water jet system of the intelligent toilet according to claim 2, wherein, The water flow communication area is open on one side to facilitate the installation of the switch valve spool. The switch valve comprises a switch valve cover. The switch valve cover comprises a mounting through hole for mounting the other end of the switch valve spool. The switch valve spool is in sealing fit with the mounting through hole.

4. The water jet system of the intelligent toilet according to claim 3, wherein, The outer periphery of the switch valve cover is provided with a plurality of first lugs. The switch valve body is provided with a plurality of second lugs corresponding to the first lugs. The first lugs and the second lugs are connected by fasteners to fix the switch valve cover on the switch valve body to cover the water flow communication area. A first sealing member is arranged between the switch valve cover and the switch valve body. The motor is installed at the end of the switch valve cover away from the switch valve body.

5. The water jet system of the intelligent toilet according to claim 2, wherein, The water flow communication area comprises a flat surface provided with the water inlet and an arc surface provided with the water outlet. The arc surface is arranged along the rotation path of the baffle and avoids the baffle. The baffle rotates to the flat surface to close the water inlet, so that the switch valve changes from the open state to the closed state. The water inlet and the water outlet are arranged opposite to each other. The angle of rotation of the baffle is not less than 90°.

6. The water jet system of the intelligent toilet according to claim 2, wherein, The switch valve is arranged at the water inlet end of the second water pipe. The switch valve body is provided with a water inlet connector and a water outlet connector. The water inlet penetrates through the water inlet connector, and the water outlet penetrates through the water outlet connector. The water inlet connector is connected with the second interface, and the water outlet connector is connected with the second water pipe.

7. The water jet system of the intelligent toilet according to claim 6, wherein, The water inlet end of the switch valve body is provided with a first limiting groove. The second interface is provided with a limiting rib for limiting the circumferential rotation of the switch valve body and the second interface.

8. The water jet system of the intelligent toilet according to claim 1, wherein, The connecting piece comprises a fourth interface. The fourth interface is provided with a vacuum valve. The vacuum valve comprises a vacuum valve body and a vacuum valve spool. The vacuum valve spool is slidingly connected to the vacuum valve body and floats up and down according to the pressure change in the connecting piece. The vacuum valve body is provided with an air inlet channel for controlling the air inflow according to the up and down floating of the vacuum valve spool. The vacuum valve body is provided with an air inlet. The vacuum valve comprises an air inlet state in which the air inlet and the fourth interface are communicated and a sealing state in which the air inlet and the fourth interface are not communicated.

9. The water jet system of the intelligent toilet according to claim 8, wherein, The vacuum valve comprises a vacuum valve seat. The vacuum valve body is installed on the vacuum valve seat. The vacuum valve seat is fixedly installed on the fourth interface.

10. The water jet system of the intelligent toilet according to claim 1, wherein, The connecting piece comprises a first part and a second part. The first part and the second part are in one-piece structure. Alternatively, the first part and the second part are detachably connected.

11. The water jet system of the intelligent toilet according to claim 1, wherein, The connecting piece comprises a cleaning port. The cleaning port is provided with a plug. The cleaning port and the plug are sealed by a second sealing member.

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