Pedestal pan

Abstract

The invention relates to a pedestal pan, which comprises the following components: a seat body which is internally provided with a defecation cavity, the wall surface of the defecation cavity is provided with a flushing port, the bottom of the defecation cavity is provided with a drain outlet, and the cross sectional area of the defecation cavity has a trend of decreasing in a direction from the top of the defecation cavity to the bottom of the defecation cavity; the foam generator is used for conveying foam to the excrement cavity; the controller is electrically connected to the foam generator and is configured to control the foam generator to convey foam to the toilet cavity of the seat body after receiving the water seal lowering signal, and the foaming amount of the foam generator is smaller than the conventional foaming amount; wherein the water seal lowering signal represents that the water seal liquid level is lowered from the conventional liquid level height to the splash-proof liquid level height, and the conventional foaming amount is the single-time foaming amount of the foam generator at the conventional liquid level height. The foaming amount of the foam generator can always adapt to the liquid level area of the water seal, the consumption of the foam liquid can be obviously reduced, and the frequency of adding the foam liquid by a user is reduced.

Description

Technical Field

[0001] This article relates to bathroom technology, and in particular to a toilet. Background Art

[0002] Existing smart toilets can deliver foam into the seat body through a foam generator, forming a foam layer on the water seal to achieve the effect of splashing water.

[0003] However, the amount of foam required for smart toilets in different usage scenarios is different, and the foam generator of existing smart toilets outputs the same amount of foam each time, without considering the difference in foam demand in different usage scenarios. In order to achieve a better splash-proof effect, the amount of foam output by the foam generator of existing smart toilets is usually set according to the usage scenario with the largest foam demand, which will lead to a waste of foam liquid and require users to add foam liquid frequently. Summary of the invention

[0004] The technical problem to be solved by the present application is how to reduce the waste of foam liquid and reduce the frequency of adding foam liquid.

[0005] The present application provides a toilet, which includes: The seat body is provided with a toilet cavity, a flushing port is provided on the wall of the toilet cavity, and a sewage outlet is provided at the bottom of the toilet cavity. The cross-sectional area of ​​the toilet cavity tends to decrease in the direction from the top of the toilet cavity to the bottom of the toilet cavity. a foam generator for delivering foam to the stool cavity; and, The controller is electrically connected to the foam generator and is configured to control the foam generator to deliver foam to the toilet cavity of the seat body after receiving the water seal reduction signal, and the foaming amount of the foam generator this time is less than the normal foaming amount; The water seal reduction signal indicates that the water seal liquid level is reduced from the normal liquid level to the splash-proof liquid level, and the normal foaming amount is the single foaming amount of the foam generator at the normal liquid level.

[0006] In the technical solution of the present application, the controller controls the foam generator to deliver foam to the toilet cavity of the seat body with a foaming amount less than the normal foaming amount according to the water seal reduction signal, so that a foam layer can be formed on the water seal of the toilet cavity. The foam layer can effectively prevent water splashing in the toilet cavity. Therefore, when the water seal liquid level of the toilet is relatively small and the anti-splashing liquid level height is relatively small, the foaming amount is also relatively small, which can maintain the anti-splashing function and significantly reduce the consumption of foam liquid, thereby reducing the frequency of users adding foam liquid.

[0007] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0009] Figure 1 It is a full cross-sectional schematic diagram of a toilet bowl in which the water seal in the embodiment of the present application is at the maximum liquid level height; Figure 2 It is a full cross-sectional schematic diagram of the sewage discharge device in the embodiment of the present application; Figure 3 It is a schematic diagram of the state of the sewage pipe when the water seal in the embodiment of the present application is at the second liquid level height; Figure 4 It is a schematic diagram of the state of the sewage pipe when the water seal in the embodiment of the present application is at the first liquid level height; Figure 5 A schematic diagram of a sewage pipe with an output end facing vertically upward in an embodiment of the present application; Figure 6 Schematic diagram of a sewage pipe in which the angle between the output end and the vertical direction is 0° to 90° in an embodiment of the present application; Figure 7 This is a schematic diagram of a sewage pipe with its output end facing obliquely downward in an embodiment of the present application.

[0010] Reference numerals: 100. Toilet; 1. Seat; 11. Toilet cavity; 12. Drainage outlet; 2. Drainage device; 21. Cavity; 211. Cavity; 212. Inlet; 213. First cylinder; 214. Second cylinder; 215. Fourth cylinder; 22. Drain pipe; 221. Input end; 2211. Water inlet; 222. Output end; 2221. Water outlet; 223. Third cylinder; 224. Fifth cylinder; 23. Driving motor; 231. Body; 232. Main shaft; 24. First sealing ring; 200. Water seal; 300. Foam layer. DETAILED DESCRIPTION

[0011] like Figure 1 As shown, Figure 1 The structure of a toilet 100 in the present application is shown. The toilet 100 comprises a seat body 1, a flushing water path (not shown in the figure), a foam generator (not shown in the figure) and a controller (not shown in the figure).

[0012] The seat body 1 is the main structure of the toilet 100. The seat body 1 may be made of ceramic. A toilet cavity 11 is arranged in the seat body 1. The toilet cavity 11 is used to accommodate excrement, which is urine and feces. A flushing port (not shown in the figure) is arranged on the wall of the toilet cavity 11. The flushing port may be arranged at the top of the side wall of the toilet cavity 11. A sewage outlet 12 is arranged at the bottom of the toilet cavity 11. The sewage outlet 12 may be a circular opening. The sewage outlet 12 may be arranged toward the rear side of the seat body 1. In the direction from the top of the toilet cavity 11 to the bottom of the toilet cavity 11, the cross-sectional area of ​​the toilet cavity 11 in the horizontal direction tends to become smaller. The toilet cavity 11 may have a smaller cross-sectional area as it approaches the bottom.

[0013] The flushing water circuit is connected to the flushing port. A flushing valve is provided on the flushing water circuit. The flushing valve is used to open and close the flushing water circuit. The flushing valve may be a pulse valve. When the flushing valve is opened, the flushing water circuit can deliver water to the toilet cavity 11 through the flushing port to flush the excrement in the toilet cavity 11 away from the sewage outlet 12. After the excrement is flushed away, the flushing water circuit continues to deliver water to the toilet cavity 11 through the flushing port to form a water seal 200 in the toilet cavity 11. The water seal 200 can prevent odor from entering the toilet cavity 11 from the sewage outlet 12, thereby preventing odor from entering the room. When the flushing valve is closed, the flushing water circuit stops delivering water to the toilet cavity 11.

[0014] The foam generator is connected to the toilet cavity 11 of the seat body 1 through a pipeline. The foam generator is used to deliver foam into the toilet cavity 11. The foam generator is configured to generate foam after mixing the diluted foam liquid with air. The foam liquid can be a surfactant.

[0015] The controller is a logic control unit of the toilet 100. The controller can be a microcomputer or a single chip microcomputer. The controller is electrically connected to the foam generator and the flush valve through a wire.

[0016] This embodiment also proposes a control method for the toilet 100. The control method is implemented based on the above toilet 100 and includes the following steps: Step S1: The controller receives a water seal reduction signal and proceeds to step S2; The toilet has a normal mode and an anti-splash mode. When the toilet is in the normal mode, the height of the water seal liquid level is at the normal liquid level. When the toilet is in the anti-splash mode, the height of the water seal liquid level is at the anti-splash liquid level. Both the normal liquid level and the anti-splash liquid level are preset values, and the normal liquid level is higher than the anti-splash liquid level. The water seal reduction signal indicates that the water seal liquid level is reduced from the normal liquid level to the anti-splash liquid level.

[0017] The water seal reduction signal can be a signal fed back to the controller after the device for adjusting the water seal liquid level adjusts the water seal liquid level from the normal liquid level to the splash-proof liquid level, or it can be a signal fed back to the controller after the detection device detects that the water seal liquid level has dropped from the normal liquid level to the splash-proof liquid level.

[0018] Step S2: the controller controls the foam generator to deliver foam to the toilet cavity 11 of the seat body 1, and the foaming amount of the foam generator this time is less than the normal foaming amount, wherein the normal foaming amount is the single foaming amount of the foam generator at a normal liquid level height.

[0019] After the foam generator delivers foam into the toilet cavity 11, a foam layer 300 will be formed on the water seal liquid surface of the water seal 200. After the foam layer 300 reaches a certain thickness, the foam layer 300 can prevent the water in the toilet cavity 11 from splashing when the user uses the toilet. The minimum thickness required for the foam layer 300 to effectively prevent the water in the toilet cavity 11 from splashing can be pre-calibrated. Then, the foaming amount of foam that the foam generator needs to deliver to the toilet cavity 11 to maintain the foam layer 300 at the minimum thickness at the normal liquid level of the water seal 200 is calibrated, and this foaming amount can be used as the normal foaming amount. Since the cross-sectional area of ​​the toilet cavity 11 tends to decrease in the direction from the top of the toilet cavity 11 to the bottom of the toilet cavity 11, the smaller the liquid level of the water seal 200, the smaller the liquid surface area of ​​the water seal 200, and thus the smaller the foaming amount of foam required to maintain the same thickness of the foam layer 300. Therefore, when the water seal liquid level is at an anti-splashing liquid level height that is lower than the normal liquid level height, the single foaming amount of foam that the foam generator needs to deliver to the toilet cavity 11 is less than the normal foaming amount, and an effective anti-splashing foam layer 300 can also be formed on the water surface.

[0020] In this way, the controller controls the foam generator to deliver foam to the toilet cavity 11 of the seat 1 at a foaming amount less than the normal foaming amount according to the water seal reduction signal, so that a foam layer 300 can be formed on the water seal 200 of the toilet cavity 11. The thickness of the foam layer 300 reaches the minimum thickness required for the foam layer 300 to effectively prevent water splashing in the toilet cavity 11, and can effectively prevent water splashing in the toilet cavity 11.

[0021] Therefore, when the water seal liquid level of the toilet 100 is at a relatively small anti-splashing liquid level, the foaming amount is also relatively small, which can not only maintain the anti-splashing function, but also significantly reduce the consumption of foam liquid and reduce the frequency of users adding foam liquid.

[0022] In an illustrative embodiment, Figure 1 , 2 As shown, the toilet 100 further includes a sewage discharge device 2. The sewage discharge device 2 is connected to the sewage discharge port 12 of the seat body 1. The sewage discharge device 2 may be arranged outside the sewage discharge port 12 and connected to the sewage discharge port 12. The sewage discharge device 2 is configured to adjust the liquid level of the water seal 200 in the toilet cavity 11 and discharge all the water in the toilet cavity 11. The sewage discharge device 2 is electrically connected to the controller. The sewage discharge device 2 may adjust the liquid level of the water seal 200 in the toilet cavity 11 by controlling the discharge amount of the sewage discharge port 12.

[0023] The control method further includes step S1a and step S1b before step S1.

[0024] Step S1a: the controller receives the anti-splash instruction, controls the sewage discharge device 2 to lower the water seal liquid level from the normal liquid level to the anti-splash liquid level, and enters step S1b; Step S1b: After the sewage discharge device 2 lowers the water seal liquid level from the normal liquid level to the splash-proof liquid level, it feeds back a water seal lowering signal to the controller, and then proceeds to step S1; The anti-splash instruction may be sent by a detection device on the toilet 100 for detecting the user's toilet behavior. The detection device sends the anti-splash instruction to the controller when detecting that the user has a toilet behavior. The anti-splash instruction may also be actively sent by the user, for example, when the user is about to go to the toilet, the anti-splash instruction is sent to the toilet 100. The user may send the anti-splash instruction to the toilet 100 through the control panel of the toilet 100, the remote control or the mobile terminal.

[0025] In order to ensure the sealing effect, when the toilet 100 is not in use, the liquid level of the water seal 200 is usually maintained at the position of the normal liquid level, which can be the maximum liquid level of the toilet chamber 11. After the controller obtains the anti-splash instruction, the sewage discharge device 2 discharges a portion of the water from the toilet chamber 11, thereby reducing the liquid level of the water seal 200. When the water seal liquid level is reduced to the anti-splash liquid level, the sewage discharge device 2 stops draining. After the liquid level of the water seal 200 is reduced, the maximum height at which water can splash is reduced, thereby further preventing water from splashing onto the human body or splashing out of the toilet chamber 11. At the same time, after the liquid level of the water seal 200 is reduced, the liquid surface area is reduced accordingly, and the foaming amount of the foam is also reduced, thereby saving the foam liquid.

[0026] In an illustrative embodiment, Figure 2As shown, the sewage discharge device 2 includes a cavity 21, a sewage discharge pipe 22 and a driving motor 23. A cavity 211 is provided in the cavity 21. The cavity 21 is arranged outside the toilet cavity 11 and abuts against the sewage discharge port 12 of the toilet cavity 11. The cavity 21 is connected to the base 1, and the cavity 21 and the base 1 can be bolted. An inlet 212 is provided on the side wall of the cavity 21 on the side close to the sewage discharge port 12. The inlet 212 can be a circular opening. The inlet 212 on the cavity 21 is connected to the sewage discharge port 12 on the base 1. An outlet (not shown in the figure) is provided on the bottom wall of the cavity 21, and the outlet can be a circular opening. The sewage discharge pipe 22 is arranged in the cavity 211 of the cavity 21. The sewage discharge pipe 22 can be constructed as a straight strip. The sewage discharge pipe 22 includes an input end 221 and an output end 222 opposite to the input end 221. The fluid can flow into the drain pipe 22 from the input end 221 of the drain pipe 22, and then flow out of the drain pipe 22 from the output end 222. The input end 221 of the drain pipe 22 is rotatably connected to the cavity 21, and is connected to the inlet 212 of the cavity 21. The drain pipe 22 can rotate around a rotation axis, which is horizontally arranged and perpendicular to the extension direction of the drain pipe 22. Thus, the drain pipe 22 can rotate in a vertical plane perpendicular to the rotation axis. The drive motor 23 is connected to the drain pipe 22, and the drive motor 23 can drive the drain pipe 22 to rotate. The controller is electrically connected to the drive motor 23 of the sewage discharge device 2.

[0027] The controller can control the driving motor 23 to adjust the rotation angle of the sewage pipe 22 to adjust the liquid level of the water seal.

[0028] like Figure 1 , 5 As shown, the controller first controls the driving motor 23 to rotate the sewage pipe 22 to its output end 222 vertically upward, and the sewage pipe 22 then opens the flush valve to allow the flushing waterway to inject water into the toilet cavity 11. After the liquid level of the water seal 200 in the toilet cavity 11 is flush with the end of the output end 222 of the sewage pipe 22, the flush valve is closed. At this time, the liquid level of the water seal 200 in the toilet cavity 11 reaches the maximum height, that is, the normal liquid level. The amount of water injected into the toilet cavity 11 by the flushing waterway in a single time can also be greater than the amount of water required to make the liquid level of the water seal 200 flush with the end of the output end 222. The excess water will be discharged from the end of the output end 222 of the sewage pipe 22 into the cavity 21, and then discharged from the outlet of the cavity 21, which can ensure that the liquid level of the water seal 200 in the toilet cavity 11 is flush with the end of the output end 222 of the sewage pipe 22.

[0029] After the sewage pipe 22 is rotated to the position where its output end 222 is vertically upward, the sewage pipe 22 is continued to be rotated, and the end position of the output end 222 of the sewage pipe 22 is lowered, and a portion of the water in the toilet chamber 11 will flow out from the output end 222 of the sewage pipe 22 until the liquid level of the water seal 200 in the toilet chamber 11 is flush with the lowest position of the end of the output end 222 of the sewage pipe 22 again. Therefore, when the angle between the direction of the output end 222 of the sewage pipe 22 and the vertical upward direction is greater than 0° and less than 90°, the angle has a corresponding relationship with the liquid level of the water seal 200, and the larger the angle, the lower the liquid level of the water seal 200. The corresponding relationship between the angle between the direction of the output end 222 of the sewage pipe 22 and the vertical upward direction and the liquid level of the water seal 200 can be pre-calibrated. For example, a predetermined angle between the direction of the output end 222 of the sewage pipe 22 and the vertical upward direction corresponding to the anti-splash liquid level height can be pre-calibrated.

[0030] like Figure 3 , 4 6, when the controller needs to adjust the liquid level of the water seal 200 from the normal liquid level to the splash-proof liquid level that is lower than the normal liquid level, the controller only needs to first obtain the predetermined angle corresponding to the set liquid level, and then control the drive motor 23 to drive the drain pipe 22 to rotate until the angle between the direction of its output end 222 and the vertical upward direction is equal to the angle, so that the liquid level of the water seal 200 can be adjusted to the splash-proof liquid level.

[0031] In an illustrative embodiment, the splash prevention instruction includes a first splash prevention instruction and a second splash prevention instruction.

[0032] Step S2 comprises the following steps: Step S21: Figure 4 As shown, when the received anti-splash instruction is the first anti-splash instruction, the controller controls the sewage discharge device 2 to lower the water seal liquid level in the toilet cavity 11 from the normal liquid level to the anti-splash liquid level, and controls the foam generator to deliver a first foaming amount of foam to the toilet cavity 11; Step S22: Figure 3 As shown, when the received anti-splash instruction is the second anti-splash instruction, the controller controls the sewage discharge device 2 to lower the water seal liquid level in the toilet cavity 11 from the normal liquid level height to the anti-splash liquid level height, and controls the foam generator to deliver a second foaming amount of foam to the toilet cavity 11, wherein the first liquid level height is less than the second liquid level height, and the first foaming amount is less than the second foaming amount.

[0033] The difference between the normal liquid level height of the water seal 200 and the anti-splash liquid level height is 10 mm to 45 mm, and the difference between the normal liquid level height of the water seal 200 and the anti-splash liquid level height is preferably 25 mm. The first foaming amount is preferably greater than 0.3 times the second foaming amount and less than 0.8 times the second foaming amount. The second foaming amount is less than the normal foaming amount. The thickness of the foam layer 300 of the second foaming amount on the water seal liquid surface at the anti-splash liquid level height is equal to the thickness of the foam layer 300 of the normal foaming amount on the water seal liquid surface at the normal liquid level height, and the thickness of the foam layer 300 of the second foaming amount on the water seal liquid surface at the anti-splash liquid level height is greater than the thickness of the foam layer 300 of the first foaming amount on the water seal liquid surface at the anti-splash liquid level height.

[0034] like Figure 4 As shown, in the scenario where a man urinates while standing, the splashing range of water is relatively large. By sending a first anti-splashing instruction, the liquid level of the water seal 200 in the toilet cavity 11 is lowered to a smaller anti-splashing liquid level. At the same time, the foam generator delivers a first foaming amount of foam to the toilet cavity 11, which can effectively prevent the splashing of water out of the toilet cavity 11. At the same time, the first foaming amount is very small, which can save more foam liquid.

[0035] like Figure 3 As shown, in the scenario of sitting on the toilet, the splashing range of water is small, and the second anti-splashing instruction is sent to lower the liquid level of the water seal 200 in the toilet cavity 11 to the anti-splashing liquid level. At the same time, the foam generator delivers the second foaming amount of foam to the toilet cavity 11, which can effectively prevent the splashing of water on the human body and prevent the excrement from falling directly on the wall of the toilet cavity 11 and being difficult to be washed away by water. At the same time, the second foaming amount is relatively small, which can save foam liquid.

[0036] Furthermore, since the force of water splashing when a man urinates while standing is less than that when a man sits on the toilet, a smaller first foaming amount can be used to meet the requirement of splash-proofing, thus saving more foam liquid.

[0037] In an illustrative embodiment, the toilet 100 further includes a seat ring (not shown in the figure), a first detection device (not shown in the figure) and a second detection device (not shown in the figure). The seat ring is annular. The seat ring is rotatably connected to the seat body 1. The seat ring can be hinged to the seat body 1. A person can sit on the seat ring to use the toilet.

[0038] The first detection device is electrically connected to the controller. The first detection device is used to detect whether the seat ring is flipped upward from the seat body 1. The first detection device can be an encoder connected to the rotating shaft of the seat ring. The encoder determines whether the seat ring is flipped upward from the seat body 1 by detecting the rotation angle of the seat ring. The first detection device can also be a position switch set on the seat body 1. When the seat ring covers the seat body 1, it abuts against the position switch to trigger the position switch. When the seat ring flips upward from the seat body 1, the seat ring separates from the position switch and no longer triggers the position switch.

[0039] The second detection device is electrically connected to the controller. The second detection device is used to detect whether a person is sitting. Sitting means that a person sits on the seat ring. The second detection device can be a seat sensor arranged on the seat body 1.

[0040] The first detection device is configured to detect that the seat ring is flipped upward from the seat body 1 and send a first splash-proof instruction to the controller. The second detection device is configured to detect that a human body is seated and send a second splash-proof instruction to the controller.

[0041] In this way, when the male user opens the seat and prepares to urinate while standing, the first detection device automatically sends the first anti-splash instruction to the controller, which reduces the step of the user actively sending the first anti-splash instruction, which is more intelligent. When the user sits down and prepares to sit down to urinate, the second detection device automatically sends the second anti-splash instruction to the controller, which reduces the step of the user actively sending the second anti-splash instruction, which is more intelligent.

[0042] In an exemplary embodiment, the toilet 100 further includes a remote controller, which can wirelessly communicate with the controller. The remote controller is configured to send a first anti-splash instruction and a second anti-splash instruction to the controller.

[0043] In this way, the user can remotely send the first anti-splash command and the second anti-splash command through the remote control according to his own toilet needs to activate the anti-splash function of the toilet 100. The first anti-splash command is sent to the controller when the boy is standing to urinate, and the second anti-splash command is sent to the controller when the user is sitting to use the toilet.

[0044] In an illustrative embodiment, Figure 7 As shown, when the controller drives the drain pipe 22 to rotate through the driving motor 23 until its output end 222 faces directly downward or obliquely downward, the water in the toilet cavity 11 can flow into the drain pipe 22, then flow from the drain pipe 22 into the cavity 21, and finally be discharged from the outlet of the cavity 21, so that all the water in the toilet cavity 11 can be discharged.

[0045] When the controller receives a toilet flushing instruction, the controller can drive the sewage pipe 22 to rotate to its output end 222 facing obliquely downward through the driving motor 23, and then open the flushing valve to allow the flushing water path to inject water into the toilet cavity 11, so that the excrement in the toilet cavity 11 and the water are flushed out of the toilet cavity 11 together, and enter the cavity 21 through the sewage pipe 22, and finally discharged from the outlet of the cavity 21. After the excrement in the toilet cavity 11 is flushed clean, the controller will control the driving motor 23 to rotate the sewage pipe 22 to its output end 222 facing vertically upward, and close the flushing valve after the liquid level of the water seal 200 in the toilet cavity 11 is flush with the end of the output end 222 of the sewage pipe 22.

[0046] Thus, after the toilet is flushed, the water seal 200 can be re-formed in the toilet cavity 11, and the liquid level height of the water seal 200 is the maximum height.

[0047] In an illustrative embodiment, Figure 2 As shown, a water inlet 2211 is provided on the side wall of the input end 221 of the sewage pipe 22. The water inlet 2211 is a circular opening. A water outlet 2221 is provided at the end of the output end 222.

[0048] A first cylinder 213 is provided on the inner side surface of the cavity 21. The first cylinder 213 is cylindrical. One end of the first cylinder 213 is connected to the inner side surface of the cavity 21. One end of the first cylinder 213 surrounds the inlet 212 of the cavity 21. One end of the first cylinder 213 is connected to the inlet 212 of the cavity 21. The axis of the first cylinder 213 is arranged horizontally. The water inlet 2211 of the sewage pipe 22 is sleeved on the first cylinder 213, and the water inlet 2211 is clearance-matched with the first cylinder 213. The sewage pipe 22 can rotate around the first cylinder 213. At the same time, the first cylinder 213 connects the inlet 212 of the cavity 21 and the water inlet 2211 of the sewage pipe 22.

[0049] The driving motor 23 includes a body 231 and a main shaft 232. The body 231 is fixed on the cavity 21 and is located on the side wall of the cavity 21 facing away from the inlet 212. One end of the main shaft 232 of the driving motor 23 extends from the body 231. The main shaft 232 is coaxially arranged with the first cylinder 213, and one end of the main shaft 232 is connected to the side wall of the input end 221 of the sewage pipe 22 facing away from the water inlet 2211.

[0050] In this way, when the main shaft 232 of the driving motor 23 rotates, it can drive the sewage pipe 22 to rotate, so that the sewage pipe 22 rotates around the first cylinder 213. At the same time, the first cylinder 213 connects the inlet 212 of the cavity 21 and the water inlet 2211 of the sewage pipe 22, and the water in the toilet cavity 11 can flow through the sewage outlet 12 of the seat body 1, the inlet 212 of the cavity 21, the first cylinder 213 and the water inlet 2211 of the sewage pipe 22 and enter the sewage pipe 22, so that the toilet cavity 11 and the sewage pipe 22 can always maintain a connected state. In addition, the main shaft 232 of the driving motor 23 and the first cylinder 213 support the sewage pipe 22 from the opposite sides of the sewage pipe 22, and the forces on both sides of the sewage pipe 22 are more balanced and more reasonable.

[0051] In an illustrative embodiment, a second cylinder 214 is further disposed on the inner side of the cavity 21. The second cylinder 214 and the first cylinder 213 are disposed on the same side of the cavity 21. The inner diameter of the second cylinder 214 is greater than the outer diameter of the first cylinder 213. The second cylinder 214 is sleeved on the first cylinder 213, and the second cylinder 214 and the first cylinder 213 are coaxially disposed. A first annular gap is formed between the second cylinder 214 and the first cylinder 213. The length of the second cylinder 214 may be less than the length of the first cylinder 213.

[0052] A third cylinder 223 is provided on the outer side surface of the input end 221 of the sewage pipe 22. One end of the third cylinder 223 is connected to the outer side surface of the sewage pipe 22. The third cylinder 223 is coaxially arranged with the water inlet 2211 on the input end 221. The end of the third cylinder 223 surrounds the water inlet 2211. The outer diameter of the third cylinder 223 is smaller than the inner diameter of the second cylinder 214, and the inner diameter of the third cylinder 223 is larger than the outer diameter of the first cylinder 213. The end of the third cylinder 223 facing away from the sewage pipe 22 is inserted into the annular gap between the second cylinder 214 and the first cylinder 213, and the outer circumferential surface of the third cylinder 223 is gap-matched with the inner circumferential surface of the second cylinder 214.

[0053] The sewage discharge device 2 further includes a first sealing ring 24. The first sealing ring 24 may be a rubber sealing ring. The first sealing ring 24 is sleeved on the first cylinder 213 and sandwiched between the first cylinder 213 and the third cylinder 223. The first sealing ring 24 seals the gap between the first cylinder 213 and the third cylinder 223.

[0054] In this way, the second cylinder 214 and the third cylinder 223 are in clearance fit, the third cylinder 223 can rotate relative to the second cylinder 214, and the second cylinder 214 also supports the third cylinder 223, so that the rotation connection between the sewage pipe 22 and the cavity 21 is more stable. In addition, the first sealing ring 24 can also seal the gap between the first cylinder and the third cylinder 223, and can prevent sewage from leaking from the gap between the first cylinder and the third cylinder 223, thereby improving the sealing performance between the sewage pipe 22 and the cavity 21.

[0055] In an exemplary embodiment, a fourth cylinder 215 is further disposed on the cavity 21 , and one end of the fourth cylinder 215 is connected to the inner side surface of the cavity 21 close to the driving motor 23 . The fourth cylinder 215 is coaxially disposed with the first cylinder 213 .

[0056] A fifth cylinder 224 is also provided on the input end 221 of the sewage pipe 22. One end of the fifth cylinder 224 is connected to the outer surface of the input end 221 close to the drive motor 23. The fifth cylinder 224 is sleeved on the fourth cylinder 215 and has a clearance fit with the fourth cylinder 215, and the fourth cylinder 215 and the fifth cylinder 224 can rotate relative to each other. The main shaft 232 of the drive motor 23 is passed through the fourth cylinder 215 and the fifth cylinder 224.

[0057] In this way, the fourth cylinder 215 of the cavity 21 supports the fifth cylinder 224 of the sewage pipe 22 , which can reduce the bending moment applied by the sewage pipe 22 to the main shaft 232 of the driving motor 23 and extend the service life of the driving motor 23 .

[0058] In an exemplary embodiment, a first through hole 210 is disposed on a side wall of the cavity 21 close to the driving motor 23 . The inner diameter of the first through hole 210 is greater than the diameter of the main shaft 232 of the driving motor 23 .

[0059] The body 231 of the driving motor 23 is arranged outside the cavity 21. The body 231 of the driving motor 23 may be connected to the outer side of the cavity 21, and the body 231 and the cavity 21 may be connected by screws. The main shaft 232 extends horizontally from the body 231, passes through the first through hole 210 of the cavity 21, and is connected to the sewage pipe 22. The sewage pipe 22 and the main shaft 232 of the driving motor 23 may be splined.

[0060] In this way, the body 231 of the driving motor 23 is arranged outside the cavity 21 , which can prevent the driving motor 23 from water intrusion and leakage, and also facilitate the inspection and maintenance of the driving motor 23 .

[0061] In an illustrative embodiment, the foam generator includes a foam liquid box, a diluting device, a gear pump and a foaming motor. The foam liquid box is used to contain the foam liquid. A liquid outlet is provided at the bottom of the foam liquid box. The diluting device can be a three-way joint or a stirring device. The diluting device is provided with a liquid inlet, a water inlet and a diluent outlet. The liquid inlet of the diluting device is connected to the liquid outlet of the foam liquid box, and the foam liquid box delivers water foam liquid to the liquid inlet of the diluting device. The water inlet of the diluting device is used to connect to the water supply waterway, and the water supply waterway is used to deliver water to the diluting device. The diluting device can mix the foam liquid delivered by the foam liquid box and the water delivered by the water supply waterway to dilute the foam liquid, and then output the diluted foam liquid from the diluent outlet. The gear pump is provided with a diluent inlet, an air inlet and a foam outlet. The diluent outlet of the diluting device is connected to the diluent inlet of the gear pump. The air inlet of the gear pump is connected to the external environment. The foaming motor is connected to the gear pump, and the foaming motor is used to drive the gear pump to rotate. The diluted foam liquid is sucked into the gear pump from the diluent inlet of the gear pump, and the air is sucked into the gear pump from the air inlet of the gear pump. In the gear pump, the diluted foam liquid and the air are mixed into foam and then output from the foam outlet of the gear pump. The foam outlet of the gear pump is connected to the toilet cavity 11 through a pipeline, and the gear pump transports the foam to the toilet cavity 11.

[0062] The controller is electrically connected to the foaming motor of the foam generator, and the controller can control the start and stop of the foaming motor. When the speed of the foaming motor is fixed, the amount of foam produced is proportional to the running time of the foaming motor. The longer the single running time of the foaming motor is, the greater the amount of foam produced is. The controller controls the amount of foam produced by controlling the single running time of the foaming motor.

[0063] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0064] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique invention scheme. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme. Therefore, it should be understood that any feature shown and / or discussed in the present application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0065] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0066] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0067] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features.

[0068] In the description of the present application, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0069] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0070] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0072] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A toilet, characterized in that: include: The seat body is provided with a toilet cavity, a flushing port is provided on the wall surface of the toilet cavity, a sewage outlet is provided at the bottom of the toilet cavity, and the cross-sectional area of ​​the toilet cavity tends to decrease in the direction from the top of the toilet cavity to the bottom of the toilet cavity; A foam generator, used for delivering foam to the toilet cavity; as well as, A controller is electrically connected to the foam generator and is configured to control the foam generator to deliver foam to the toilet cavity of the seat body after receiving a water seal reduction signal, and the foaming amount of the foam generator this time is less than the normal foaming amount; The water seal reduction signal indicates that the water seal liquid level is reduced from a normal liquid level to an anti-splash liquid level, and the normal foaming amount is a single foaming amount of the foam generator at a normal liquid level.

2. The toilet according to claim 1, characterized in that: The toilet also includes a sewage discharge device electrically connected to the controller; The sewage discharge device is connected to the sewage discharge port and is configured to adjust the liquid level of the water seal in the toilet cavity; The controller is further configured to control the sewage discharge device to reduce the water seal liquid level from a normal liquid level to an anti-splash liquid level based on receiving the anti-splash instruction; The sewage discharge device is configured to feed back a water seal reduction signal to the controller after the water seal liquid level is reduced from a normal liquid level height to an anti-splash liquid level height.

3. The toilet according to claim 2, characterized in that: The splash prevention instruction includes a first splash prevention instruction and a second splash prevention instruction; The controller is also configured to: Based on receiving the first anti-splash instruction, controlling the sewage discharge device to lower the water seal liquid level in the toilet cavity from the normal liquid level to the anti-splash liquid level, and controlling the foam generator to deliver a first foaming amount of foam to the toilet cavity; Based on receiving the second anti-splash instruction, controlling the sewage discharge device to lower the water seal liquid level in the toilet cavity from the normal liquid level to the anti-splash liquid level, and controlling the foam generator to deliver a second foaming amount of foam to the toilet cavity; Wherein, the first foaming amount is smaller than the second foaming amount, and the second foaming amount is smaller than the conventional foaming amount.

4. The toilet according to claim 3, characterized in that: The toilet also includes a seat ring rotatably connected to the seat body, a first detection device for detecting whether the seat ring is turned over, and a second detection device for detecting whether a human body is sitting on the seat; The first detection device and the second detection device are both electrically connected to the controller; The first detection device detects that the seat ring is turned over and sends a first splash-proof instruction to the controller; The second detection device detects that a human body is seated and sends a second splash-proof instruction to the controller.

5. The toilet according to claim 3, characterized in that: The toilet also includes a remote controller capable of wireless communication with the controller; The remote controller is configured to send a first splash-proof instruction and a second splash-proof instruction to the controller.

6. The toilet according to any one of claims 3 to 5, characterized in that: The first anti-splash instruction is sent to the controller when a boy urinates while standing, and the second anti-splash instruction is sent to the controller when the user sits down to use the toilet.

7. The toilet according to any one of claims 2 to 5, characterized in that: The sewage discharge device comprises: A cavity body, wherein a cavity is provided therein, an inlet connected to the sewage outlet is provided on the side wall of the cavity, and an outlet is provided on the bottom wall of the cavity; a sewage pipe, arranged in the cavity, comprising an input end rotatably connected to the cavity and connected to the inlet, and an output end opposite to the input end, the rotation axis of the sewage pipe being arranged horizontally, and the extension direction of the sewage pipe being perpendicular to the rotation axis of the sewage pipe; A driving motor, electrically connected to the controller, for driving the sewage pipe to rotate; Wherein, the controller is configured to control the driving motor to adjust the rotation angle of the sewage pipe to achieve the adjustment of the liquid level height of the water seal.

8. The toilet according to claim 7, characterized in that: A water inlet is provided on the side wall of the input end, and a water outlet is provided at the end of the output end; A first cylinder connected to the inlet is arranged on the inner side of the cavity, and the water inlet is sleeved on the first cylinder; The driving motor is arranged on the side wall of the cavity facing away from the inlet, and the driving motor comprises a main shaft, which is coaxially arranged with the first cylinder and connected to the side wall of the input end facing away from the water inlet.

9. The toilet according to claim 8, characterized in that: A second cylinder coaxial with the first cylinder is also disposed on the inner side of the cavity, the second cylinder is sleeved on the first cylinder and a first annular gap is formed between the second cylinder and the first cylinder; A third cylinder coaxial with the water inlet is provided on the outer side surface of the input end, and the third cylinder is inserted into the first annular gap and is in gap fit with the second cylinder; The sewage discharge device also includes a first sealing ring, which is sleeved on the first cylinder and clamped between the first cylinder and the third cylinder.

10. The toilet according to claim 8, characterized in that: A fourth cylinder coaxially arranged with the first cylinder is arranged on the inner side surface of the cavity close to the driving motor; A fifth cylinder is arranged on the outer side surface of the input end, and the fifth cylinder is sleeved on the fourth cylinder and has a clearance fit with the fourth cylinder.

11. The toilet according to claim 8, characterized in that: A first through hole is provided on the side wall of the cavity; The driving motor further comprises a body arranged outside the cavity, and the main shaft extends from the body and passes through the first through hole to be connected to the sewage pipe.

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