Closestool

Abstract

A closestool comprises a closestool body, a water tank, a brush ring spray head assembly and an air inlet assembly. The brush ring nozzle assembly is arranged at the brush ring water outlet and is communicated with the water tank; the water tank is provided with an air inlet, and the air inlet assembly is arranged at the air inlet and has a first state and a second state which can be switched mutually; when the air inlet assembly is in the first state, the air inlet assembly communicates the air inlet with the external atmospheric environment, so that the internal space of the water tank communicates with the external atmospheric environment; when the air inlet assembly is in the second state, the air inlet assembly separates the air inlet from the external atmospheric environment, so that water in the water tank can overflow into the urinal through the brush ring spray head assembly; the position of one end, far away from the water tank, of the air inlet assembly, the position of a water outlet port of the brush ring nozzle assembly and the position corresponding to the working water level of the water tank are sequentially lowered. According to the scheme, the number of holes in the closestool body can be reduced; and even if the air inlet assembly is in the second state, the partition effect is not good, it can still be guaranteed that the water flow overflows from the brush ring and spray head assembly to the urinal.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of bathroom fixtures technology, specifically referring to a toilet. Background Technology

[0002] In related technologies, toilets with water tanks are equipped with overflow pipes and overflow holes on the toilet body. The overflow pipe connects the water tank and the overflow hole, allowing water overflowing from the water tank to flow into the toilet bowl through the overflow pipe and overflow hole. However, this solution requires additional holes to be drilled in the toilet body, which is usually made of ceramic, making it difficult to drill holes and causing the drilled areas to become dirty and difficult to clean. Summary of the Invention

[0003] This application provides a toilet that reduces the number of openings on the toilet body, thereby simplifying the structure of the toilet body and facilitating cleaning.

[0004] This application provides a wall-hung toilet, including: a toilet body with a bowl, the inner wall of which has a brush ring outlet; and a water circuit module including a water tank, a brush ring nozzle assembly, and an air intake assembly; the brush ring nozzle assembly is located at the brush ring outlet and communicates with the water tank; the water tank has an air intake, and the air intake assembly is located at the air intake, having a first state and a second state that can be switched between each other; wherein, when the air intake assembly is in the first state, the air intake assembly connects the air intake to the external atmospheric environment, so that the internal space of the water tank is connected to the external atmospheric environment; when the air intake assembly is in the second state, the air intake assembly isolates the air intake from the external atmospheric environment, so that water in the water tank can overflow into the bowl through the brush ring nozzle assembly; and the position of the end of the air intake assembly away from the water tank, the position of the water outlet of the brush ring nozzle assembly, and the position corresponding to the working water level of the water tank decrease sequentially.

[0005] The toilet provided in this application embodiment eliminates the overflow pipe and instead uses a brush ring nozzle assembly to discharge water overflowing from the tank into the toilet bowl. This eliminates the need for an overflow hole on the toilet body, thereby reducing the number of openings in the toilet body, simplifying the structure of the toilet body, facilitating cleaning, and improving the toilet's aesthetics.

[0006] When the air intake component is in its first state, it allows the space inside the water tank to communicate with the outside atmosphere. On the one hand, it can expel the air inside the water tank, making it easier to fill the water tank and ensuring that the water level inside the tank is not restricted. On the other hand, it can introduce outside air into the water tank, which can prevent negative pressure from being generated inside the water tank and make it easier to extract the water from the water tank.

[0007] Furthermore, the positions of the air intake assembly furthest from the water tank, the water outlet of the brush ring nozzle assembly, and the working water level of the water tank are sequentially lowered. This ensures that even if the air intake assembly's isolation effect is poor in its second state, water can still overflow from the brush ring nozzle assembly into the toilet bowl, preventing overflow from the end of the air intake assembly furthest from the water tank to the outside, thus avoiding any adverse effects on the surrounding structure.

[0008] In some embodiments of this application, the air intake assembly includes: an air intake pipe connected to the water tank, the air intake pipe having a movable cavity communicating with the air inlet and a clearance opening communicating with the movable cavity; and a movable member movably disposed within the movable cavity and capable of moving relative to the air intake pipe between a first position and a second position; wherein, when the air intake assembly is in the first state, the movable member is located in the first position and opens the clearance opening to connect the internal space of the water tank with the external atmospheric environment; when the air intake assembly is in the second state, the movable member is located in the second position and closes the clearance opening to isolate the internal space of the water tank from the external atmospheric environment.

[0009] In some embodiments of this application, the air intake assembly further includes: a sealing gasket disposed inside the air intake pipe and having the clearance opening; when the movable member is in the first position, the movable member separates from the sealing gasket, causing the clearance opening to be opened; when the movable member is in the second position, the movable member and the sealing gasket engage to stop and close the clearance opening.

[0010] In some embodiments of this application, the air inlet is located at the top of the water tank; the air inlet pipe extends vertically, with the first position located below the second position; the movable member is configured to float relative to the air inlet pipe between the first position and the second position under the influence of gravity and buoyancy.

[0011] In some embodiments of this application, the movable component is a float ball, and there is an air passage gap between the float ball and the cavity wall of the movable cavity; and / or, the air intake assembly further includes a bracket, the bracket passing through the air inlet and being sealed to one end of the air intake pipe facing the water tank, the bracket being provided with an air passage communicating with the movable cavity and the air inlet; when the movable component is in the first position, the movable component is supported by the bracket.

[0012] In some embodiments of this application, when the movable component is a float and there is an air passage gap between the float and the cavity wall of the movable cavity, the side wall of the movable cavity is provided with a plurality of guide ribs spaced apart circumferentially along the air inlet pipe, the guide ribs are used to guide the floating of the float, and the space between adjacent guide ribs forms the air passage gap; and / or, when the air inlet assembly further includes a bracket, the bracket includes: a sleeve, a plurality of support ribs connected to the inner side wall of the sleeve and spaced apart circumferentially along the sleeve, and a support column connected to the plurality of support ribs, the support column is used to support the movable component, and the air passage includes the gap between adjacent support ribs.

[0013] In some embodiments of this application, the air intake pipe includes an air intake seat and an extension pipe. The air intake seat is provided with the movable cavity. The air intake seat is fixedly connected to the water tank by fasteners. The extension pipe is connected to the upper end of the air intake seat, and a portion of the extension pipe is inserted into the air intake seat and abuts against the sealing gasket. The air intake seat is provided with an annular limiting flange, and the sealing gasket is provided with an annular limiting groove. The limiting flange is embedded in the limiting groove.

[0014] In some embodiments of this application, the position of the end of the air intake pipe away from the water tank, the position of the clearance opening, and the position corresponding to the working water level of the water tank are successively lowered.

[0015] In some embodiments of this application, the inner wall of the toilet bowl is provided with a swirling guide surface and a drain outlet. The swirling guide surface is configured to guide the water flow from the brush ring outlet to the drain outlet to discharge the waste in the toilet bowl. The water circuit module also includes a water pump. The inlet and outlet ports of the water pump are respectively connected to the water tank and the brush ring nozzle assembly, and are configured to pump the water in the water tank to the brush ring nozzle assembly, so that the water flows into the toilet bowl through the brush ring outlet.

[0016] In some embodiments of this application, the inner wall surface of the toilet bowl includes a brush ring water guiding surface, a flow surface, and a water seal surface connected sequentially from top to bottom, with the drain outlet located at the bottom of the water seal surface; the swirling flushing guide surface includes the brush ring water guiding surface, with the brush ring outlet located behind the brush ring water guiding surface, and the front end of the brush ring water guiding surface being lower than the brush ring outlet; both the flow surface and the water seal surface are mirror-symmetrical structures, and the symmetrical planes of the flow surface and the water seal surface are coplanar, with the symmetrical plane being a vertical plane extending in the front-back direction; the inclination of the front part of the water seal surface relative to the horizontal plane is greater than the inclination of the front part of the flow surface relative to the horizontal plane.

[0017] In some embodiments of this application, the toilet body is provided with a brush ring mounting hole communicating with the brush ring outlet; the brush ring nozzle assembly includes: a nozzle body, a sealing gasket, a connecting gasket, and a nut; the nozzle body is inserted into the brush ring mounting hole and communicates with the water pump and the brush ring outlet; the sealing gasket is located inside the brush ring mounting hole and sleeved on the outside of the nozzle body, capable of sealing the gap between the nozzle body and the hole wall of the brush ring mounting hole; the connecting gasket is located outside the brush ring mounting hole and abuts against the toilet body, and is sandwiched between the nut and the toilet body; the nut is sleeved on the outside of the nozzle body and threadedly connected to the nozzle body, so that the nozzle body is fixed to the toilet body.

[0018] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application can be realized and obtained by means of the embodiments described in the description and the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings are used to provide an understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0020] Figure 1 A partial three-dimensional structural diagram of a wall-hung toilet provided in some embodiments of this application (the toilet seat device is omitted). Figure 2 for Figure 1 The diagram shows the exploded structure of a wall-hung toilet. Figure 3 This is a partially exploded structural diagram of a wall-hung toilet provided in some embodiments of this application; Figure 4 An exploded view of the waterway module provided in some embodiments of this application; Figure 5 This is a three-dimensional structural diagram of the waterway module in some embodiments of this application; Figure 6 A partial cross-sectional view of a wall-hung toilet provided in some embodiments of this application; Figure 7 This application provides schematic diagrams illustrating the working principle of wall-hung toilets in some embodiments. Figure 8 A partial cross-sectional view of a wall-hung toilet provided in some embodiments of this application; Figure 9A A cross-sectional structural schematic diagram of the first state of the air intake assembly provided in some embodiments of this application; Figure 9BA cross-sectional structural schematic diagram of the second state of the air intake assembly provided in some embodiments of this application; Figure 10 An exploded view of the intake assembly provided in some embodiments of this application; Figure 11A A cross-sectional structural schematic diagram of the first state of the liquid level sensor provided in some embodiments of this application; Figure 11B A cross-sectional structural schematic diagram of the second state of the liquid level sensor provided in some embodiments of this application; Figure 12 This is an exploded structural diagram of a brush ring nozzle assembly provided in some embodiments of this application; Figure 13 A partial top view of a wall-hung toilet provided in some embodiments of this application, wherein arrows indicate the direction of water flow; Figure 14 A partial cross-sectional view of a wall-hung toilet provided in some embodiments of this application, wherein arrows indicate the direction of water flow; Figure 15 This is a front view structural diagram of the brush ring nozzle body provided in some embodiments of this application.

[0021] The attached diagram lists the components represented by each number as follows: 1. Wall mount bracket; 2. Water circuit module; 21. Water tank; 210. Clearance space; 211. Connecting flange; 212. Fastener; 213. Water inlet; 214. Air inlet; 215. Water inlet; 22. Water pump; 23. Brush ring nozzle assembly; 231. Nozzle body; 232. Sealing gasket; 233. Connecting gasket; 234. Nut; 235. Lug; 236. Stop; 24. Water suction pipe; 241. Water suction port; 201. Liquid level sensor; 2011. Float; 2012. First connecting lug; 401. Water pump mounting plate; 501. Air intake assembly; 511. Moving part; 512. Sealing gasket; 5121. Clearance opening. 5122, Limiting groove; 513, Air inlet pipe; 5131, Air inlet seat; 5132, Extension pipe; 5133, Limiting flange; 5134, Second connecting lug; 514, Movable cavity; 5141, Guide rib; 5142, Air passage gap; 515, Bracket; 5151, Limiting flange; 5152, Sleeve; 5153, Support rib; 5154, Support column; 5155, Air passage; 516, Sealing ring; 701, Water inlet assembly; 711, Ball valve; 712, Solenoid valve water inlet pipe; 713, Anti-siphon device; 714, Solenoid valve; 715, Water tank water inlet pipe; 716, Flow restrictor; 901, Brush ring water delivery pipe; 3. Toilet body; 31. Toilet bowl; 311. Brush ring water outlet; 312. Swirl flush guide surface; 312a. Front end of brush ring water guide curved surface; 312b. Front part of flow curved surface; 312c. Front part of water seal curved surface; 313. Sewage outlet; 3121. Brush ring water guide curved surface; 3122. Flow curved surface; 3123. Water seal curved surface; 32. Sewage pipe; 33. Connecting part; 34. Brush ring mounting hole; 35. Mounting cavity. Detailed Implementation

[0022] The principles and features of this application are described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0023] like Figure 1 As shown in the figure, this application embodiment provides a toilet, including a toilet body 3 and a water circuit module 2.

[0024] The toilet body 3 is equipped with a bowl 31, such as Figure 2 As shown. The inner wall of the toilet bowl 31 is provided with a brush ring water outlet 311, as shown. Figure 13 and Figure 14 As shown.

[0025] Please combine them together Figures 2 to 4 As shown, the water circuit module 2 includes a water tank 21, a brush ring nozzle assembly 23, and an air intake assembly 501. The brush ring nozzle assembly 23 is located at the brush ring water outlet 311 and communicates with the water tank 21. The water tank 21 is provided with an air inlet 214 (e.g., ...). Figure 4 As shown), the air intake assembly 501 is located at the air intake 214 and has a first state and a second state that can be switched between each other.

[0026] Among them, when the intake assembly 501 is in the first state (e.g. Figure 9A As shown), the air intake assembly 501 connects the air intake port 214 to the external atmospheric environment, thereby allowing the internal space of the water tank 21 to communicate with the external atmospheric environment. When the air intake assembly 501 is in the second state (as shown), Figure 9B As shown), the air intake assembly 501 isolates the air intake 214 from the external atmospheric environment, allowing water in the water tank 21 to overflow into the toilet bowl 31 through the brush ring nozzle assembly 23. Furthermore, as... Figure 8 As shown, the positions a (the end of the air intake assembly 501 furthest from the water tank 21), b (the water outlet port of the brush ring nozzle assembly 23), and d (the position corresponding to the working water level of the water tank 21) decrease sequentially. The working water level of the water tank 21 refers to the rated water level of the water tank 21, which is also the highest water level that the level sensor 201 used to detect the water level of the water tank can detect. The working water level of the water tank 21 is lower than the maximum height of the water tank 21 (in other words, when the water tank 21 is filled with water to the working water level, the water tank 21 is not full).

[0027] The toilet provided in this embodiment eliminates the overflow pipe and instead uses the brush ring nozzle assembly 23 to discharge the water overflowing from the water tank 21 into the toilet bowl 31. Therefore, the overflow hole on the toilet body 3 can be eliminated, thereby reducing the number of openings in the toilet body 3, simplifying the structure of the toilet body 3, facilitating the cleaning of the toilet body 3, and improving the aesthetics of the toilet.

[0028] The air intake component 501 allows the space inside the water tank 21 to communicate with the outside atmosphere. On the one hand, it can expel the air inside the water tank 21, making it easier to put water into the water tank 21 and ensuring that the water level inside the water tank 21 is not restricted. On the other hand, it can introduce outside air into the water tank 21, which can prevent negative pressure from being generated inside the water tank 21 and make it easier to extract the water from the water tank 21.

[0029] Furthermore, the positions a, the end of the air intake assembly 501 furthest from the water tank 21, b, the water outlet of the brush ring nozzle assembly 23, and d, corresponding to the working water level of the water tank 21, are sequentially lowered. This ensures that even if the air intake assembly 501's isolation effect is poor in its second state, water can still overflow from the brush ring nozzle assembly 23 into the toilet bowl 31, preventing overflow from the end of the air intake assembly 501 furthest from the water tank 21 to the outside, thus avoiding any adverse effects of the overflowing water on the surrounding structure.

[0030] In some embodiments, such as Figure 9A , Figure 9B and Figure 10 As shown, the air intake assembly 501 includes an air intake pipe 513 and a movable member 511. The air intake pipe 513 is connected to the water tank 21, and has a movable cavity 514 communicating with the air intake port 214 and a clearance opening 5121 communicating with the movable cavity 514. The movable member 511 is movably disposed within the movable cavity 514 and can move relative to the air intake pipe 513 between a first position and a second position.

[0031] When the air intake assembly 501 is in the first state, the movable part 511 is in the first position and opens the clearance opening 5121 to connect the internal space of the water tank 21 with the external atmospheric environment, such as Figure 9A As shown. When the air intake assembly 501 is in the second state, the movable part 511 is in the second position and closes the clearance opening 5121 to isolate the internal space of the water tank 21 from the external atmospheric environment, as shown. Figure 9B As shown.

[0032] The end of the air intake pipe 513 furthest from the water tank 21 is the end of the air intake assembly 501 furthest from the water tank 21. The air intake pipe 513 provides a channel for communication between the water tank 21 and the external atmospheric environment, and also serves as the mounting carrier for the movable component 511, thus limiting its movement. The movable component 511 acts like a switch valve, controlling the opening and closing of the clearance opening 5121 by switching its position, thereby controlling the connection between the internal space of the water tank 21 and the external atmospheric environment.

[0033] In some embodiments, such as Figure 9A , Figure 9B and Figure 10 As shown, the intake assembly 501 further includes a sealing gasket 512 disposed within the intake pipe 513 and having a clearance opening 5121. When the movable member 511 is in the first position, the movable member 511 separates from the sealing gasket 512, causing the clearance opening 5121 to open, as shown... Figure 9A As shown. When the movable part 511 is in the second position, the movable part 511 and the sealing gasket 512 engage, causing the clearance opening 5121 to be closed, as shown. Figure 9B As shown.

[0034] The sealing gasket 512 can improve the reliability of closing the clearance opening 5121 when the moving part 511 is in the second position, thereby reducing the risk of the clearance opening 5121 not closing tightly.

[0035] In other embodiments, the intake assembly 501 may also exclude the sealing gasket 512, and the clearance opening 5121 may be provided in the intake pipe 513 (for example, the inner wall surface of the intake pipe 513 may be provided with an annular protrusion to enclose the clearance opening 5121 in the intake pipe 513).

[0036] In some embodiments, such as Figure 4 As shown, the air inlet 214 is located at the top of the water tank 21. The air inlet pipe 513 extends vertically, as shown... Figure 8 As shown, the first position is located below the second position. The sealing gasket 512 is located at the upper port of the movable cavity 514. This simplifies the structure of the intake pipe 513 and also helps to shorten its length.

[0037] The movable component 511 is configured to float between a first position and a second position relative to the air intake pipe 513 under the influence of gravity and buoyancy. In this way, the movable component 511 can switch between the first position and the second position automatically according to the state of the water in the water tank 21 without the need for additional driving components, thus simplifying the structure of the air intake assembly 501 and helping to reduce costs.

[0038] In other embodiments, the air intake pipe 513 may also be inclined.

[0039] In some embodiments, such as Figure 1 and Figure 2 As shown, the toilet also includes a wall-mounted bracket 1, which is fixedly connected to the toilet body 3 and can be fixed to the wall to support and fix the toilet body 3. Therefore, this toilet is a wall-mounted toilet.

[0040] In other embodiments, the toilet may not include the wall-mounted bracket 1, in which case the toilet may be a floor-standing toilet.

[0041] In some embodiments, the inner wall of the toilet bowl is provided with a swirling flow guide surface 312 and a drain outlet 313. The swirling flow guide surface 312 is configured to guide the water flow sprayed from the brush ring outlet 311 to the drain outlet 313 to discharge the waste in the toilet bowl 31. Figure 2 , Figure 4 The water circuit module 2 shown includes a water tank 21, a water pump 22, and a brush ring nozzle assembly 23 located at the brush ring outlet 311. The inlet and outlet ports of the water pump 22 are connected to the water tank 21 and the brush ring nozzle assembly 23, respectively, and are configured to pump water from the water tank 21 to the brush ring nozzle assembly 23, so that water flows through the brush ring outlet 311 and is ejected into the toilet bowl 31.

[0042] Because the water pump 22 can provide stable water pressure, the water in the water tank 21 is ejected from the brush ring outlet 311, forming a high-speed water flow. This flow rotates circumferentially along the inner wall of the toilet bowl 31 and falls deep into the toilet bowl 31, creating a powerful vortex. This vortex flushes the waste in the toilet bowl 31 into the drain outlet 313 for discharge, and also has a good cleaning effect on the inner wall of the toilet bowl 31, achieving a cleaning effect such as… Figure 13 , Figure 14 The effect of the swirling flushing is shown.

[0043] In this way, the water tank 21 does not need to be installed in a high position, nor does it require a high inlet water pressure, thus achieving zero-pressure flushing (i.e., there is no requirement for the inlet water pressure), which facilitates the promotion and application of vortex flush toilets.

[0044] In some embodiments, the toilet body 3 can be manufactured from ceramic or metal through a one-piece molding process, and the water tank 21 can be either a wall-mounted tank or a non-wall-mounted tank. A wall-mounted tank can be fixed to a wall-mounting bracket 1 during installation, and then the wall-mounting bracket 1 and the water tank 21 are embedded together into the wall. A non-wall-mounted tank can be hidden inside the toilet body 3.

[0045] In some embodiments, such as Figure 3 As shown, the toilet body 3 also has an installation cavity 35, and the water tank 21 is located inside the installation cavity 35. This makes full use of the internal space of the toilet body 3 and simplifies the installation and maintenance of the water tank 21.

[0046] In some embodiments, such as Figure 2 , Figure 3As shown, the mounting cavity 35 is located on the lower side of the toilet bowl 31, and the water tank 21 is arranged around the toilet bowl 31. This helps to improve the space utilization of the toilet body 3 and facilitates the miniaturization of the toilet.

[0047] In some embodiments, such as Figure 3 As shown, the water tank 21 has a clearance space 210. The toilet body 3 has a drain pipe 32 that connects to the drain outlet, such as... Figure 14 As shown, a portion of the drain pipe 32 is located within the clearance space 210. This avoids the need for additional space to accommodate the drain pipe 32, which is beneficial for miniaturizing the toilet.

[0048] In some embodiments, such as Figure 3 As shown, the water tank 21 has a connecting flange 211 extending into the clearance space 210, and the toilet body 3 has a connecting part 33. The connecting part 33 is located at the bottom of the outer side wall of the toilet bowl 31. The connecting flange 211 and the connecting part 33 are fixedly connected by fasteners 212, thus fixing the water tank 21 to the toilet body 3. The fasteners 212 have high connection strength and are relatively secure, which helps to improve the connection reliability between the water tank 21 and the toilet body 3. Furthermore, after the water tank 21 and the toilet body 3 are combined into a whole, they can be fixed together to the wall bracket 1, completing the installation and fixing of the water tank during production and assembly, simplifying the installation operation.

[0049] In some embodiments, such as Figure 3 As shown, the connecting flange 211 is located at the bottom of the water tank 21, which makes the structure of the water tank 21 more regular and easier to process and shape. The connecting part 33 extends along the height direction of the water tank 21 to form a columnar structure, which is easy to insert into the clearance space 210 and connect with the connecting flange 211.

[0050] In some embodiments, the water tank 21 has a bottom plate, and the connecting flange 211 is the part of the bottom plate located within the clearance space 210. This structure can make the bottom of the toilet flat and aesthetically pleasing.

[0051] In some embodiments, such as Figure 3 , Figure 4 As shown, the water tank 21 is equipped with a water inlet 213, and the water circuit module 2 also includes a water pump pipe 24. The water pump pipe 24 passes through the water inlet 213. A portion of the water pump pipe 24 is located inside the water tank 21 and extends vertically. The end of the portion of the water pump pipe 24 away from the water pump 22 forms the water pump port 241 of the water pump pipe 24, which faces the inner bottom wall of the water tank 21. This facilitates the full extraction of water from the water tank 21 and prevents water at low water levels from being difficult to extract and utilize.

[0052] Water pump 22 can pass Figure 4 , Figure 5 The water pump mounting plate 401 shown is installed at the bottom of the water tank 21 near the water inlet 213.

[0053] In some embodiments, such as Figure 6 As shown, the distance h between the water pump port 241 and the inner bottom wall of the water tank 21 satisfies: 5mm≤h≤30mm. This is beneficial in preventing the water pump port 241 from being blocked by dirt, water stains and other substances at the bottom of the water tank 21 if h is too small, and also in preventing excessive water in the water tank 21 from being difficult to pump out and use if h is too large.

[0054] Of course, h is not limited to the above range and can be adjusted as needed.

[0055] In some embodiments, the wall-hung toilet also includes a control device, and the relationship between the control logic and the water circuit can be referred to... Figure 7 As shown. Figure 3 , Figure 4 As shown, the water circuit module 2 also includes a water inlet assembly 701 and a liquid level sensor 201. The water inlet assembly 701 includes a solenoid valve 714 and a water tank inlet pipe 715. The water tank 21 has a water inlet 215, one end of the water tank inlet pipe 715 is connected to the water inlet 215, and the other end is connected to the solenoid valve 714. The liquid level sensor 201 is installed in the water tank 21 and is configured to detect the liquid level inside the water tank 21. The control device is electrically connected to the liquid level sensor 201 and the solenoid valve 714, and is configured to control the opening and closing of the solenoid valve 714 based on the detection result of the liquid level sensor 201. This enables automatic control of water intake into the water tank 21, eliminating the need for manual control by the user and improving the product's intelligence level.

[0056] In some embodiments, such as Figure 11A , Figure 11B As shown, the level sensor 201 is a float-type level sensor. When the water level in the water tank 21 is at a low level (e.g., Figure 11A As shown), float 2011 falls to a lower position under the influence of gravity. When the water level in tank 21 is at a high level (such as...), Figure 11B As shown in the figure, float 2011 floats to a high position under the action of buoyancy.

[0057] like Figure 11A , Figure 11B The liquid level sensor 201 shown may be provided with a plurality of first connecting lugs 2012, each of which may be provided with a fastener mounting hole. The fastener passes through the fastener mounting hole and is fixedly connected to the water tank 21, thereby realizing the connection and fixation between the liquid level sensor 201 and the water tank 21.

[0058] In some embodiments, such as Figure 4 As shown, the water inlet assembly 701 also includes at least one of a ball valve 711, a solenoid valve water inlet pipe 712, and an anti-siphon device 713.

[0059] Among them, ball valve 711 is configured to be connected to an external water source (such as municipal tap water), and ball valve 711 is equipped with a flow limiting plate 716. Figure 4 As shown, it can limit the water pressure and flow rate of municipal waterways.

[0060] The inlet pipe 712 of the solenoid valve is configured to connect to the inlet of the solenoid valve 714, and the solenoid valve 714 can be connected to the ball valve 711 through the inlet pipe 712. This allows for the reasonable arrangement of the solenoid valve 714 according to needs, without being limited by the location of the user's water inlet valve.

[0061] The anti-siphon device 713 is located upstream of the solenoid valve 714 and is connected to the solenoid valve 714. It is configured to prevent water in the water tank 21 from flowing back through the solenoid valve 714, thereby preventing water from flowing back into the user's water system and causing pollution. The anti-siphon device 713 can be, but is not limited to, a vacuum circuit breaker, a check valve, or other similar structures.

[0062] In some embodiments, in standby mode, the movable component 511 can remain in a first position under the influence of gravity. When the system receives a flushing command, the movable component 511 can remain in the first position under the influence of gravity, and the water pump 22 operates to extract water from the water tank 21. At this time, outside air can enter the water tank 21 through the clearance opening 5121, the movable cavity 514, and the air inlet 214. When water enters the water tank 21, the water pump 22 is turned off, and the movable component 511 can remain in the first position under the influence of gravity. The air in the water tank 21 can be discharged to the outside environment through the air inlet 214, the movable cavity 514, and the clearance opening 5121. When the liquid level sensor 201 or the solenoid valve 714 fails, causing the water tank 21 to continue to fill even when it is full, the water in the water tank 21 can enter the movable chamber through the air inlet 214, causing the movable part 511 to rise to the second position under the action of buoyancy. At this time, the clearance opening 5121 is closed, and the water in the water tank 21 cannot overflow through the air inlet assembly 501. Instead, it is finally transported through the water pipe 24 and the water pump 22 to the brush ring nozzle assembly 23 and discharged into the toilet bowl 31.

[0063] In some embodiments, such as Figure 9B and Figure 10 As shown, the air intake pipe 513 includes an air intake seat 5131 and an extension pipe 5132. The air intake seat 5131 has a movable cavity 514. The air intake seat 5131 is fixedly connected to the water tank 21 by fasteners 212. The extension pipe 5132 is connected to the upper end of the air intake seat 5131. The extension pipe 5132 can increase the height of the air intake pipe 513, which is beneficial to improving the overflow prevention effect. Part of the extension pipe 5132 is inserted into the air intake seat 5131 and abuts against the sealing gasket 512.

[0064] The air intake seat 5131 may be provided with multiple second connecting lugs 5134 (such as...) Figure 10As shown), the second connecting lug 5134 has a connecting hole, and the fastener 212 passes through the connecting hole and is fixedly connected to the water tank 21. The extension tube 5132 and the air inlet seat 5131 can be connected by threads. For example, as Figure 10 As shown, the air intake seat 5131 has an internal thread, and the extension tube 5132 has an external thread. The end of the extension tube 5132 is inserted into the air intake seat 5131 and threadedly connected to the air intake seat 5131.

[0065] The intake seat 5131 is provided with an annular limiting flange 5133 (e.g., Figure 9B As shown), the sealing gasket 512 is provided with an annular limiting groove 5122 (as shown). Figure 10 As shown, the limiting flange 5133 is embedded in the limiting groove 5122 to prevent the sealing gasket 512 from moving axially within the air intake seat 5131. The portion of the extension tube 5132 inserted into the air intake seat 5131 can also abut against the sealing gasket 512, which can effectively prevent the sealing gasket 512 from being pushed out of the air intake pipe under the action of the float and water pressure, thus further improving the positional stability of the sealing gasket 512.

[0066] In some embodiments, the cross-section of the water tank 21 can be approximately U-shaped, such as... Figure 3 As shown. The liquid level sensor 201 and the air intake assembly 501 can be fixed to the two ends of the water tank 21 extending along the U-shape, as shown. Figure 5 As shown, the installation space inside the toilet body 3 can be made reasonable use.

[0067] In some embodiments, such as Figure 10 As shown, the movable component 511 is a float, which has a simple structure and can rotate to automatically adjust its position, thus making it less prone to interference or jamming. There is an air gap 5142 between the float and the cavity wall of the movable cavity 514 to ensure that the movable cavity 514 is not completely blocked by the float, which would prevent the clearance opening 5121 from communicating with the air inlet 214.

[0068] In some embodiments, such as Figure 9B and Figure 10 As shown, the air intake assembly 501 also includes a bracket 515, which passes through the air intake port 214 and is sealed to the end of the air intake pipe 513 facing the water tank 21. This can achieve a sealed connection between the air intake assembly 501 and the water tank 21, preventing water in the water tank 21 from leaking out through the gap between the bracket 515 and the water tank 21.

[0069] like Figure 10As shown, the support 515 is provided with an air passage 5155 that communicates with the movable cavity 514 and the air inlet 214. When the float is in the first position, the float is supported by the support 515. This ensures that when the float is in the first position, the air inlet 214, the air passage 5155, the air gap 5142, and the clearance opening 5121 can be connected in sequence, realizing effective communication between the internal space of the water tank 21 and the external atmospheric environment.

[0070] In some embodiments, a sealing ring 516 is provided between the bracket 515 and the air intake seat 5131, such as... Figure 9B and Figure 10 As shown, the bracket 515 is provided with a limiting flange 5151, which is located outside the water tank 21 and presses against the sealing ring 516. This can improve the positional stability of the sealing ring 516.

[0071] In some embodiments, such as Figure 10 As shown, the sidewall of the active cavity 514 is provided with multiple guide ribs 5141 spaced circumferentially along the air intake pipe 513. The guide ribs 5141 are used to guide the floating of the float, and the space between adjacent guide ribs 5141 forms an air passage gap 5142. This improves the reliability of the float, allowing it to stay stably in the first or second position and preventing the float from shifting position and affecting the reliability of the air intake assembly 501. On the other hand, it also prevents the float from clogging the air passage gap 5142, which would affect the reliability of the air intake assembly 501.

[0072] In some embodiments, such as Figure 9B and Figure 10 As shown, the support 515 includes: a sleeve 5152, a plurality of support ribs 5153 connected to the inner sidewall of the sleeve 5152 and spaced apart along the circumference of the sleeve 5152, and support columns 5154 connected to the plurality of support ribs 5153. The support columns 5154 are used to support the float. The air passage 5155 includes the gap between adjacent support ribs 5153.

[0073] This improves the reliability of the float, ensuring it stays stably in the first position and preventing positional shifts that could affect the reliability of the intake assembly 501. It also prevents the float from blocking the air passage 5155, thus ensuring the reliability of the intake assembly 501.

[0074] In some embodiments, the support column 5154 is configured as a hollow structure. In this way, water in the water tank 21 can also enter the air intake pipe 513 through the internal space of the support column 5154, so that the water tank 21 and the air intake pipe 513 maintain a smooth communication relationship.

[0075] In some embodiments, such as Figure 8As shown, the positions a (the end of the air inlet pipe 513 furthest from the water tank 21), c (the clearance opening 5121), and d (the position corresponding to the working water level of the water tank 21) decrease sequentially. Therefore, under normal circumstances, the movable part 511 is in the first position, and the clearance opening 5121 is in the normally open state, keeping the internal space of the water tank 21 connected to the external atmospheric environment. Only when the liquid level sensor 201 or the solenoid valve 714 fails, causing the water tank 21 to continue to fill even when it is full, will the clearance opening 5121 be closed by the movable part 511.

[0076] In some embodiments, such as Figure 11A As shown, the level sensor 201 has the float 2011 positioned below, and the water tank 21 is at a low level; Figure 11B The water level corresponding to the float 2011 of the liquid level sensor 201 rising to its highest position is when the water tank 21 is at the working water level, which is the second position mentioned in the above embodiment. Figure 8 (See position d). The working water level of water tank 21 is lower than the maximum height of water tank 21.

[0077] In some embodiments, such as Figure 3 , Figure 6 As shown, the toilet body 3 is provided with a brush ring mounting hole 34 that communicates with the brush ring outlet 311.

[0078] Figure 12 The structure of the brush ring nozzle assembly 23 according to some embodiments is shown, including: a nozzle body 231, a sealing gasket 232, a connecting gasket 233, and a nut 234. The nozzle body 231 is inserted into the brush ring mounting hole 34 and communicates with the water pump 22 and the brush ring outlet 311. The sealing gasket 232 is located inside the brush ring mounting hole 34 and is sleeved on the outside of the nozzle body 231, which can seal the gap between the nozzle body 231 and the hole wall of the brush ring mounting hole 34 to prevent water leakage at the brush ring mounting hole 34. The connecting gasket 233 is located outside the brush ring mounting hole 34 and abuts against the toilet body 3, and is sandwiched between the nut 234 and the toilet body 3. The nut 234 is sleeved on the outside of the nozzle body 231 and threadedly connected to the nozzle body 231, so that the nozzle body 231 is fixed to the toilet body 3. When the nut 234 is tightened, the sealing gasket 232 is tightened to achieve a seal.

[0079] The brush ring mounting hole 34 can extend vertically, the brush ring outlet 311 can be approximately on a vertical plane, and the brush ring mounting hole 34 can be connected to the brush ring outlet 311 through a flow channel that extends approximately horizontally.

[0080] In some embodiments, such as Figure 12 and Figure 15As shown, the outer wall of the nozzle body 231 is provided with a lug 235. The diameter of the lower end of the brush ring mounting hole 34 is smaller than the width W of the lug 235, allowing the nozzle body 231 to be inserted obliquely into the mounting hole and preventing the nozzle body 231 from coming out of the mounting hole. The lug 235 may include two symmetrically arranged stop portions 236 (such as...). Figure 12 As shown), each stop portion 236 is approximately an isosceles triangle, and the distance between the mutually distant ends of two stop portions 236 is the width W of the lug 235.

[0081] In this way, when the upper part of the nozzle body 231 is inserted obliquely into the brush ring mounting hole 34, after releasing the hand, the nozzle body 231 cannot automatically detach from the brush ring mounting hole 34 under the action of gravity due to the restriction of the hanging ear 235. Therefore, the worker does not need to support the nozzle body 231, but can pull the nozzle body 231 down to tighten the nut 234, which reduces the installation difficulty of the brush ring nozzle assembly 23.

[0082] The working principle of the above embodiments is as follows: Figure 7 and Figure 8 As shown, in standby mode, solenoid valve 714 is in the closed state, and at this time, liquid level sensor 201 is at a high liquid level (e.g., Figure 8 (Position d) The water pump 22 is not operating. When the control device receives the flushing command, the water pump 22 starts running. At this time, the float of the air intake assembly 501 falls to the bottom of the air intake pipe 513 due to gravity. At this time, there is a gap between the float and the sealing gasket 512, and air enters through this gap. At this time, the water in the water tank 21 is pumped by the water pump 22 to the brush ring nozzle assembly 23. The brush ring nozzle assembly 23 is connected to the brush ring outlet 311 of the toilet body 3. The water level in the water tank 21 continues to decrease. The float of the liquid level sensor 201 is affected by the decrease in water level and is in the low liquid level area. The liquid level sensor 201 outputs a signal to the control device. After receiving the low liquid level command of the water tank 21, the control device opens the solenoid valve 714 to allow water to enter the water tank 21. When the water level in the water tank 21 rises, the float of the liquid level sensor 201 floats up and is in the high liquid level state. The liquid level sensor 201 outputs a signal to the control device. After receiving the high liquid level command of the water tank 21, the control device closes the solenoid valve 714, and the water tank 21 stops entering water.

[0083] When the level sensor 201 or the solenoid valve 714 fails, water continues to enter even when the level sensor 201 is at a high level. At this time, the water level in the tank 21 continues to rise from the working water level position d, first reaching the air inlet sealing position (i.e., position c of the clearance opening 5121). At this point, due to buoyancy, the float rises and presses against the sealing gasket 512, sealing the clearance opening 5121. Water continues to enter the tank 21, flowing through the water pump 22, the brush ring water supply pipe 901, the brush ring nozzle assembly 23, and finally exiting through the brush ring outlet 311 into the toilet bowl 31.

[0084] In some embodiments, such as Figure 13 , Figure 14 As shown, the inner wall surface of the toilet bowl 31 includes a brush ring water guiding surface 3121, a flow-through surface 3122, and a water seal surface 3123 connected sequentially from top to bottom. The drain outlet 313 is located at the bottom of the water seal surface 3123. The brush ring water guiding surface 3121 can construct a brush ring water channel, allowing the water sprayed from the brush ring outlet 311 to rotate circumferentially along the toilet bowl 31. The flow-through surface 3122 can guide the water in the brush ring to flow downwards. The space within the water seal surface 3123 can form a water cover that meets standard requirements.

[0085] The swirling guide surface 312 includes a brush ring water guiding surface 3121. The brush ring outlet 311 is located behind the brush ring water guiding surface 3121. The front end 312a of the brush ring water guiding surface 3121 is lower than the brush ring outlet 311, so that the water flow through the brush ring (such as...) Figure 13 , Figure 14 (As shown by the middle arrow) After the water comes out of the brush ring outlet 311, part of the water can rotate along the inner wall of the toilet bowl 31, and the other part of the water flows through the front part 312b of the flow curve into the drain outlet 313.

[0086] Both the flow-through surface 3122 and the water seal surface 3123 are mirror-symmetrical structures, and the symmetrical planes of the flow-through surface 3122 and the water seal surface 3123 are coplanar, with the symmetrical planes being vertical planes extending in the front-back direction. In this way, the structure of the toilet body 3 is relatively regular, which is convenient for processing and shaping.

[0087] like Figure 14 As shown, the inclination of the front part 312c of the water seal surface relative to the horizontal plane is greater than that of the front part 312b of the flow-through surface relative to the horizontal plane. Thus, the connection between the upper end of the front part 312c of the water seal surface and the lower end of the front part 312b of the flow-through surface forms a rearward convex structure, while the lower end of the front part 312c of the water seal surface forms a forward concave structure. Compared to a scheme where the front parts 312b of the flow-through surface and the front part 312c of the water seal surface are connected with essentially the same inclination, this scheme is advantageous in two ways: firstly, it increases the space on the lower front side of the toilet bowl 31, thereby increasing the height of the water tank 21 and its volume; secondly, it allows the water flow from the front part 312b of the flow-through surface to bypass the front part 312c of the water seal surface and directly flow into the drain outlet 313, resulting in a significant drop in water flow into the drain outlet 313 and thus a better flushing effect.

[0088] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0090] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0091] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0092] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0093] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A toilet, characterized in that, include: The toilet body includes a bowl, and the inner wall of the bowl has a brush ring water outlet; and The water circuit module includes a water tank, a brush ring nozzle assembly, and an air intake assembly; the brush ring nozzle assembly is located at the water outlet of the brush ring and is connected to the water tank; the water tank is provided with an air inlet, and the air intake assembly is located at the air inlet and has a first state and a second state that can be switched between each other. Specifically, when the air intake component is in the first state, the air intake component connects the air inlet to the external atmospheric environment, so that the internal space of the water tank is connected to the external atmospheric environment; when the air intake component is in the second state, the air intake component isolates the air inlet from the external atmospheric environment, so that the water in the water tank can overflow into the toilet bowl through the brush ring nozzle assembly; and the position of the end of the air intake component away from the water tank, the position of the water outlet of the brush ring nozzle assembly, and the position corresponding to the working water level of the water tank decrease sequentially.

2. The toilet according to claim 1, characterized in that, The air intake assembly includes: An air intake pipe, connected to the water tank, is provided with a movable cavity communicating with the air inlet and a clearance opening communicating with the movable cavity; and The movable component is movably disposed within the movable cavity and is capable of moving relative to the air intake pipe between a first position and a second position; When the air intake assembly is in the first state, the movable part is in the first position and opens the clearance opening to connect the internal space of the water tank with the external atmospheric environment; when the air intake assembly is in the second state, the movable part is in the second position and closes the clearance opening to isolate the internal space of the water tank from the external atmospheric environment.

3. The toilet according to claim 2, characterized in that, The air intake assembly further includes: a sealing gasket disposed inside the air intake pipe, and having the clearance opening; When the movable part is in the first position, the movable part separates from the sealing gasket, thereby opening the clearance opening; when the movable part is in the second position, the movable part engages with the sealing gasket, thereby closing the clearance opening.

4. The toilet according to claim 2, characterized in that, The air inlet is located at the top of the water tank; the air inlet pipe extends vertically, with the first position located below the second position. The movable component is configured to float relative to the air intake pipe between the first position and the second position under the influence of gravity and buoyancy.

5. The toilet according to claim 2, characterized in that, The movable component is a float, and there is an air gap between the float and the wall of the movable cavity; and / or The air intake assembly also includes a bracket, which passes through the air inlet and is sealed to one end of the air intake pipe facing the water tank. The bracket has an air passage that communicates with the movable cavity and the air inlet. When the movable part is in the first position, the movable part is supported by the bracket.

6. The toilet according to claim 5, characterized in that, When the movable component is a float and there is an air gap between the float and the wall of the movable cavity, the side wall of the movable cavity is provided with a plurality of guide ribs spaced apart along the circumference of the air inlet pipe. The guide ribs are used to guide the floating of the float, and the space between adjacent guide ribs forms the air gap. and / or When the air intake assembly further includes a bracket, the bracket includes: a sleeve, a plurality of support ribs connected to the inner sidewall of the sleeve and spaced apart along the circumference of the sleeve, and a support column connected to the plurality of support ribs, the support column being used to support the movable part, and the air passage including the gap between adjacent support ribs.

7. The toilet according to claim 3, characterized in that, The air intake pipe includes an air intake seat and an extension pipe. The air intake seat is provided with the movable cavity. The air intake seat is fixedly connected to the water tank by fasteners. The extension pipe is connected to the upper end of the air intake seat, and a portion of the extension pipe is inserted into the air intake seat and abuts against the sealing gasket. The air intake seat has an annular limiting flange, and the sealing gasket has an annular limiting groove. The limiting flange is embedded in the limiting groove.

8. The toilet according to any one of claims 2 to 7, characterized in that, The positions of the air intake pipe at the end furthest from the water tank, the avoidance opening, and the working water level of the water tank decrease sequentially.

9. The toilet according to any one of claims 1 to 7, characterized in that, The inner wall of the toilet bowl is provided with a swirling flow guide surface and a drain outlet. The swirling flow guide surface is configured to guide the water flow sprayed from the brush ring outlet to the drain outlet to discharge the waste in the toilet bowl. The water circuit module also includes a water pump, the inlet and outlet ports of which are connected to the water tank and the brush ring nozzle assembly, respectively, and are configured to pump water from the water tank to the brush ring nozzle assembly, so that water flows through the brush ring outlet and is injected into the toilet bowl.

10. The toilet according to claim 9, characterized in that, The inner wall of the toilet bowl includes a brush ring water guiding curved surface, a flow curved surface and a water seal curved surface connected from top to bottom, and the sewage outlet is located at the bottom of the water seal curved surface; The swirling guide surface includes the brush ring water guiding surface, the brush ring outlet is located on the rear side of the brush ring water guiding surface, and the front end of the brush ring water guiding surface is lower than the brush ring outlet. Both the flow-through surface and the water seal surface are mirror-symmetrical structures, and the symmetry planes of the flow-through surface and the water seal surface are coplanar, with the symmetry plane being a vertical plane extending in the front-back direction. The inclination of the front part of the water seal surface relative to the horizontal plane is greater than the inclination of the front part of the flow surface relative to the horizontal plane.

11. The toilet according to any one of claims 1 to 7, characterized in that, The toilet body is provided with a brush ring mounting hole that communicates with the brush ring water outlet; The brush ring nozzle assembly includes: a nozzle body, a sealing gasket, a connecting gasket, and a nut; the nozzle body is inserted into the brush ring mounting hole and communicates with the water tank and the brush ring outlet; the sealing gasket is located inside the brush ring mounting hole and is sleeved on the outside of the nozzle body, capable of sealing the gap between the nozzle body and the hole wall of the brush ring mounting hole; the connecting gasket is located outside the brush ring mounting hole and abuts against the toilet body, and is sandwiched between the nut and the toilet body; the nut is sleeved on the outside of the nozzle body and threadedly connected to the nozzle body, thereby fixing the nozzle body to the toilet body.

Images