Foaming assembly of intelligent closestool and intelligent closestool

Abstract

The foaming assembly comprises an agent box, a foaming device, a conveying pump body and a proportional distributor with an inlet and two outlets, the agent box is provided with a liquid outlet and a liquid return opening, the foaming device is provided with an agent inlet pipe, the input end of the conveying pump body is communicated with the liquid outlet, and the output end of the conveying pump body is communicated with the proportional distributor. The output end of the conveying pump body is communicated with the inlet, one of the two outlets is communicated with the agent inlet pipe, and the other one of the two outlets is communicated with the liquid return opening. The foaming assembly of the intelligent closestool has the advantage that the utilization rate of a foaming agent is improved under the condition that stable output is ensured and the cost is not greatly increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary wares, in particular to a foaming assembly of an intelligent toilet. Background Art

[0002] The foam function of an intelligent toilet plays a crucial role in enhancing the user experience and the sanitary environment. When a user uses the toilet, the primary goal of the foam function is to effectively prevent water splashing, which not only ensures the comfort and safety of the user during use but also reduces the potential sanitary problems caused by water splashing. Secondly, the foam function can also significantly inhibit the dirt on the surface of the toilet bowl. When the foam evenly covers the surface of the toilet bowl, it can effectively prevent excrement from directly contacting the toilet bowl, thereby reducing the difficulty and frequency of cleaning and bringing a cleaner usage environment for the user. Moreover, the foam function also has a significant effect on suppressing odors. Since the foam can cover the surface of the excrement and form an isolation layer, it effectively prevents the spread of odors, making the entire bathroom environment fresher and more pleasant. In addition, the foam function of the intelligent toilet also has antibacterial properties. By adding antibacterial components to the foam, the growth of bacteria on the surface of the toilet bowl can be effectively inhibited, thereby further improving the quality of the sanitary environment. The foaming function of the intelligent toilet mainly relies on the mixing and dispersion of water, foaming agent, and air to form bubbles. In the prior art, most use a pump body to transport the foaming agent, but the transport volume is far greater than the usage amount required for normal toilet cleaning, which will cause waste; if a pump body with a smaller flow rate and more precise control is used to transport the foaming agent, the utilization rate of the foaming agent can be increased, but the pump body with a small flow rate and precise control is expensive, which will greatly increase the manufacturing cost of the entire toilet. Therefore, in the case where the cost of the intelligent toilet needs to be controlled, the problem of excessive waste of the foaming agent cannot be well solved. Content of the Utility Model

[0003] In order to overcome the problem in the prior art that when the cost of the intelligent toilet needs to be controlled, the problem of excessive waste of the foaming agent cannot be well solved, the utility model provides a foaming assembly of an intelligent toilet, which has the advantage of improving the utilization rate of the foaming agent while ensuring stable output and not significantly increasing the cost.

[0004] In order to achieve the above object, the utility model adopts the following technical solutions:

[0005] A foaming assembly of an intelligent toilet includes a reagent tank, a foaming device, a delivery pump body, and a proportional distributor. The proportional distributor has an inlet, a first outlet, and a second outlet. The reagent tank is provided with a liquid outlet and a liquid return port. The foaming device is provided with a reagent inlet pipe. The input end of the delivery pump body is communicated with the liquid outlet, and the output end of the delivery pump body is communicated with the inlet. The first outlet is communicated with the reagent inlet pipe, and the second outlet is communicated with the liquid return port.

[0006] With the foregoing technical solution, it can be seen that the agent tank is used to store the foaming agent, and the liquid outlet and the liquid return port are the channels for the foaming agent to flow out and flow in. The liquid outlet is responsible for supplying the foaming agent to the delivery pump body, while the liquid return port is responsible for recovering the remaining or unnecessary foaming agent. The input end of the delivery pump body is connected to the liquid outlet of the agent tank to draw the foaming agent out of the agent tank, and the output end is connected to the inlet of the proportion distributor to send the foaming agent into the proportion distributor for distribution. The proportion distributor has an inlet, a first outlet and a second outlet, and these two outlets are respectively connected to the agent inlet pipe of the foaming device and the liquid return port of the agent tank. The function of the proportion distributor is to divide the foaming agent into two parts according to a preset ratio: one part is supplied to the foaming device for foaming, and the other part flows back to the agent tank. By using the proportion distributor, without replacing the delivery pump body, the system can accurately reduce the flow rate of the foaming agent entering the foaming device according to the ratio, so as to avoid waste caused by excessive use, and further reduce the use cost.

[0007] Further, the output end of the delivery pump body is communicated with the inlet through a flexible hose or a rigid pipe; or, the proportion distributor is installed on the delivery pump body, and the output end is directly connected and communicated with the inlet.

[0008] With the foregoing technical solution, it can be seen that when the output end of the delivery pump body is connected to the inlet through a flexible hose, it has higher flexibility. During the installation process, the flexible hose can more easily adapt to different angles and positions, thus increasing the flexibility of installation and making it more convenient to adjust its angle to adapt to different installation environments and space limitations; when the output end of the delivery pump body is connected to the inlet through a rigid pipe, the structure is usually more stable and not easily affected by external pressure or bending, so as to ensure the stability and efficiency of the foaming agent during transportation. Since the inside of the rigid pipe is not easily deformed or bent, the risk of blockage caused by pipe bending can be reduced; directly installing the proportion distributor on the delivery pump body can simplify the installation process, reduce intermediate links and connectors, thereby improving the installation efficiency. The direct installation method can minimize the space occupied between components, making the entire foaming assembly more compact and suitable for installation inside a smart toilet with limited space.

[0009] Further, the first outlet is communicated with the agent inlet pipe through a flexible hose, and the second outlet is communicated with the liquid return port through a flexible hose.

[0010] With the foregoing technical solution, it can be seen that the hose has higher flexibility and bendability. When connecting the outlet of the proportioner to the propellant pipe and the return liquid port, the hose can adapt to more complex pipeline layouts and bending requirements. In the limited space of a smart toilet, this characteristic is particularly important because it can ensure that the pipeline smoothly bypasses other components, thus avoiding space conflicts, and can easily adapt to various angles and positions during the installation process, thereby reducing the installation difficulty. When maintenance or component replacement is required, the disassembly and reinstallation of the hose are relatively easy, which further reduces the maintenance cost.

[0011] Furthermore, a joint assembly is provided between the proportioner and the foaming device. The joint assembly includes a first joint and a second joint that are detachably connected. The first joint is connected to the proportioner through a hose, and the second joint is connected to the propellant pipe through a hose.

[0012] With the foregoing technical solution, it can be seen that the proportioner and the foaming device are detachably connected through the joint assembly, so that the part where the proportioner is located and the part where the foaming device is located can be designed as a split structure. This not only facilitates the installation process, as the two parts can be installed separately according to the actual installation environment first and then quickly connected through the joint assembly, but also facilitates transportation. The split structure enables the entire foaming assembly to be disassembled into smaller units for packaging and transportation, reducing the transportation difficulty and cost. The first joint in the joint assembly is connected to the proportioner through a hose, and the second joint is connected to the propellant pipe through a hose. The advantage of hose connection lies in its high flexibility and bendability, enabling the entire connection system to adapt to the complex pipeline layout and bending requirements inside the toilet. In the limited space, the hose connection can easily bypass other components to ensure the smooth delivery of the foaming agent, and is also more convenient during installation and maintenance, reducing the installation difficulty and cost.

[0013] Furthermore, the delivery pump body is a peristaltic pump.

[0014] Adopting the foregoing technical solution, it can be known that the working principle of the peristaltic pump is to generate a pressure difference by the rollers rolling on the hose, thereby pushing the foaming agent to flow, enabling precise metering and control of the foaming agent. By adjusting the speed of the rollers and the diameter of the hose, precise adjustment of the dosage of the foaming agent can be achieved to meet the toilets with different usage requirements. Moreover, the peristaltic pump can handle foaming agents with a certain viscosity. Through the rolling of the rollers on the hose, effective transportation can be achieved even in the case of relatively high viscosity. The peristaltic pump also has good self-priming ability, which can achieve vacuum liquid suction and transmission of the foaming agent, so that during the transportation process, even if there are bubbles or air in the storage or pipeline of the foaming agent, they can be effectively sucked away, ensuring the accuracy and stability of transportation. At the same time, when transporting the foaming agent, the only medium in contact is the hose, and no other components such as valves are in contact with the medium, which greatly reduces the possibility of foaming agent leakage, has excellent sealing performance, ensures the transportation efficiency of the foaming agent and prevents waste. The daily maintenance of the peristaltic pump is relatively simple, only need to keep the pump body clean. If the hose needs to be replaced, no additional tool assistance is required and it can be completed by one person.

[0015] Further, the foaming device includes a connector, a foaming tube and a nozzle which are connected and communicated in sequence. The connector has a first constriction section. The foaming tube includes an expansion section, a middle section and a tail section which are communicated from upstream to downstream in sequence. The expansion section is sleeved outside the first constriction section. A gap is provided between the inner wall of the expansion section and the outer diameter of the first constriction section to form a negative pressure area. The expansion section is provided with an air inlet pipe communicated with the negative pressure area. The agent inlet pipe is arranged in the middle section.

[0016] Adopting the foregoing technical solution, it can be known that when the water flow passes through the first constriction section of the connector and enters the expansion section of the foaming tube, due to the increase in flow velocity, a negative pressure area will be formed in the gap area between the expansion section and the first constriction section. This is because the increase in flow velocity causes the pressure in this area to decrease, thus forming a pressure difference with the external atmospheric pressure. Since the expansion section is sleeved outside the first constriction section and the expansion section is also provided with an air inlet pipe communicated with the negative pressure area, external air will be sucked into the foaming tube and mixed with the water flow. Without an additional power air source, the suction of air can be achieved through the power of the water flow itself, thus saving energy costs. The middle section of the foaming tube is provided with an agent inlet pipe for adding the foaming agent. Since the air inlet pipe is arranged upstream of the agent inlet pipe, the air is first mixed with the water and then with the foaming agent, which helps to form more stable and uniform foam, and then the foam is discharged through the nozzle and acts on the toilet bowl.

[0017] Furthermore, an intelligent toilet includes a toilet base, a toilet lid assembly, a flushing device, and a foaming assembly. The foaming assembly includes a reagent tank, a foaming device, a delivery pump body, and a proportional distributor having one inlet and two outlets. The reagent tank is provided with a liquid outlet and a liquid return port. The foaming device is provided with a reagent inlet pipe. The input end of the delivery pump body is communicated with the liquid outlet, and the output end of the delivery pump body is communicated with the inlet. One of the two outlets is communicated with the reagent inlet pipe, and the other is communicated with the liquid return port. The reagent tank and the delivery pump body are installed on the toilet lid assembly, and the foaming device and the flushing device are installed on the toilet base.

[0018] With the foregoing technical solution, it can be seen that the reagent tank placed on the toilet lid assembly is used to store the foaming agent, and the liquid outlet and the liquid return port are the channels for the foaming agent to flow out and flow in. The liquid outlet is responsible for supplying the foaming agent to the delivery pump body, while the liquid return port is responsible for recovering the remaining or unnecessary foaming agent. The delivery pump body is also placed on the toilet lid assembly. The input end is connected to the liquid outlet of the reagent tank to draw the foaming agent out of the reagent tank, and the output end is connected to the inlet of the proportional distributor to send the foaming agent into the proportional distributor for distribution. The proportional distributor has one inlet and two outlets, and these two outlets are respectively connected to the reagent inlet pipe of the foaming device and the liquid return port of the reagent tank. The function of the proportional distributor is to divide the foaming agent into two parts according to a preset ratio: one part is supplied to the foaming device for foaming, and the other part flows back into the reagent tank. The toilet lid assembly is the installation carrier of the reagent tank and the delivery pump body of the foaming device. The delivery pump body is installed on the bottom plate and is successively connected to the proportional distributor and the joint assembly at the rear end. The reagent tank, the delivery pump body, the proportional distributor, and the joint assembly are all connected by pipelines. The liquid outlet of the reagent tank is connected to the inlet of the delivery pump body through a pipeline, the outlet of the delivery pump body is connected to the inlet of the proportional distributor, the outlet of the proportional distributor is connected to the joint of the joint assembly, and the other outlet of the proportional distributor is connected to the opening of the reagent tank. When using the toilet to perform a flushing action, the foaming device foams while the flushing device placed on the toilet base flushes at the same time.

[0019] Furthermore, the toilet lid assembly includes a bottom plate and a cover body covering the bottom plate. The reagent tank is installed on the bottom plate, and a reagent addition port is provided at a position corresponding to the reagent tank on the cover body, and a reagent plug is installed on the reagent addition port in an openable and closable manner.

[0020] By adopting the above-mentioned technical solution, it can be known that the toilet cover assembly is composed of a base plate and a cover body, which together constitute the main structure of the toilet cover assembly. The base plate is used to fix or carry other components, and the part of the cover body that covers the base plate is used to close the top of the toilet cover assembly. The agent box is installed on the base plate and fixed on the base plate, thereby ensuring its stability. A dosing port is provided at the position corresponding to the cover body and the agent box, in order to facilitate users to add or replenish foaming agent to the agent box. By designing such an opening, it is possible to avoid opening the entire toilet cover assembly or disassembling the agent box to perform dosing operations, thereby improving the convenience of use. A dosing plug can be opened and closed on the dosing port. The main function of the dosing plug is to seal the dosing port to prevent liquid leakage or external contaminants from entering the agent box. When dosing is needed, the user can open the dosing plug and add liquid to the agent box through the dosing port; after the dosing is completed, the dosing plug is closed to complete the overall closed seal.

[0021] Furthermore, the flushing device includes a water tank assembly, a flushing pump, a flow switching valve, an upper nozzle and a lower nozzle, the upper nozzle is installed at an upper position on the inner side of the toilet base, the pump inlet end of the flushing pump is connected to the water tank assembly, the pump outlet end of the flushing pump is connected to the flow switching valve through a pipeline, the lower nozzle is connected to the flow switching valve through a pipeline, and the upper nozzle is connected to the flow switching valve through the foaming device.

[0022] By adopting the above-mentioned technical solution, it can be known that the upper position on the inner side can make the foaming liquid flowing out from the upper nozzle as close to the top of the toilet as possible, so that the cleaning is more thorough. The flow path switching valve is between the pump outlet of the flush pump and the foaming device, and switches the path of the water flow by controlling the valve. The flow path switching valve has two outlets, one connected to the upper nozzle and the other connected to the lower nozzle. The foaming device is installed in the water path of the upper nozzle and shares the nozzle with the upper nozzle. When the flow path switching valve is switched to the upper nozzle, the foaming device can work at the same time and spray the foam together with the water flow, so the foaming speed is very fast. This fast foaming speed ensures that the foam can quickly cover the inner wall of the toilet and achieve the effect of swirling wall moistening. Swirling wall moistening not only helps to clean the toilet, but also reduces the adhesion of stains.

[0023] Furthermore, the inner side surface of the upper nozzle facing the toilet base is deflected by 10° to 30°.

[0024] By adopting the above-mentioned technical solution, it can be known that the upper nozzle is deflected 10 to 30 degrees toward the inner wall of the toilet in order to guide the water flow so that the water flow can flow directly to the inner wall of the toilet after being sprayed out, rather than directly rushing to the center of the toilet, so that the water flow can more effectively cover the inner wall of the toilet, thereby enhancing the cleaning effect. At the same time, since the water flow does not rush directly to the center of the toilet, it can also reduce the direct impact of the water flow on the center of the toilet and reduce noise.

[0025] The beneficial effects of the present utility model are as follows: (1) By adding a proportion distributor, the flow rate of the foaming agent entering the foaming device can be accurately controlled, avoiding waste; (2) The use of a peristaltic pump not only meets the cost savings but also meets the precise metering and control of the foaming agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an exploded view of a toilet with a foaming function according to the present utility model;

[0027] Figure 2 is a foaming system diagram of an intelligent toilet according to the present utility model;

[0028] Figure 3 is a cross-sectional view of the foaming device according to the present utility model;

[0029] Figure 4 is a schematic exploded view of the foaming nozzle according to the present utility model;

[0030] Figure 5 is a schematic diagram of the joint assembly according to the present utility model;

[0031] Figure 6 is a schematic diagram of the proportion distributor according to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] Embodiment 1:

[0034] As Figure 2 and Figure 3 shown, a foaming assembly of an intelligent toilet includes a reagent tank 11, a foaming device 12, a transfer pump body 13, and a proportion distributor 14 having one inlet and two outlets. An outlet 111 and a return port 112 are provided on the reagent tank 11. A reagent inlet pipe 15 is provided on the foaming device 12. The input end of the transfer pump body 13 is communicated with the outlet 111, and the output end of the transfer pump body 13 is communicated with the inlet. Among the two outlets, the one communicated with the reagent inlet pipe 15 is the first outlet 141, and the one communicated with the return port 112 is the second outlet 142.

[0035] It can be understood that the agent tank 11 is used to store the foaming agent, and the liquid outlet 111 and the liquid return port 112 are the channels for the foaming agent to flow out and flow in. The liquid outlet 111 is responsible for supplying the foaming agent to the transfer pump body 13, while the liquid return port 112 is responsible for recycling the remaining or unnecessary foaming agent. The input end of the transfer pump body 13 is connected to the liquid outlet 111 of the agent tank 11 to draw the foaming agent out of the agent tank 11, and the output end is connected to the inlet of the proportion distributor 14 to send the foaming agent into the proportion distributor 14 for distribution. The proportion distributor 14 has one inlet and two outlets, and these two outlets are respectively connected to the agent inlet pipe 15 of the foaming device 12 and the liquid return port 112 of the agent tank 11. The function of the proportion distributor 14 is to divide the foaming agent into two parts according to a preset ratio: one part is supplied to the foaming device 12 for foaming, and the other part flows back to the agent tank 11. By using the proportion distributor 14, the system can accurately control the flow rate of the foaming agent entering the foaming device 12, so as to avoid waste caused by excessive use, and thus reduce the use cost.

[0036] Preferably, as Figure 6 shown, the proportion distributor 14 adopts a structure similar to a tee, and different apertures can be set for the two outlets. In other embodiments, a distribution valve can also be used.

[0037] Preferably, in one embodiment, as Figure 2 and Figure 3 shown, the output end of the transfer pump body 13 is communicated with the inlet through a hose; the first outlet 141 is communicated with the agent inlet pipe 15 through a hose, and the second outlet 142 is communicated with the liquid return port 112 through a hose.

[0038] It can be understood that the output end of the transfer pump body 13 is connected to the inlet through a hose, which has higher flexibility. During the installation process, the hose can more easily adapt to different angles and positions, thereby increasing the flexibility of installation and making it more convenient to adjust its angle to adapt to different installation environments and space limitations; and the hose has higher flexibility and bendability. When connecting the first outlet 141 of the proportion distributor 14 to the agent inlet pipe 15 and the liquid return port 112, the hose can adapt to more complex pipeline layouts and bending requirements. In the limited space of a smart toilet, this characteristic is particularly important because it can ensure that the pipeline smoothly bypasses other components, thus avoiding space conflicts, and can easily adapt to various angles and positions during the installation process, thereby reducing the installation difficulty. When maintenance or component replacement is required, the disassembly and reinstallation of the hose are relatively easy, which further reduces the maintenance cost.

[0039] In another embodiment, as Figure 2 and Figure 3As shown, the output end of the transfer pump body 13 is communicated with the inlet through a rigid pipe; the first outlet 141 is communicated with the propellant pipe 15 through a rigid pipe, and the second outlet 142 is communicated with the liquid return port 112 through a rigid pipe.

[0040] It can be understood that by connecting with rigid pipes, the structure is usually more stable and not easily affected by external pressure or bending. Therefore, it can ensure the stability and efficiency of the foaming agent during transportation. Since the inside of the rigid pipe is not easily deformed or bent, the risk of blockage caused by pipe bending can be reduced.

[0041] In another embodiment, as Figure 2 shown, the proportion distributor 14 is installed on the transfer pump body 13, and the output end is directly connected and communicated with the inlet.

[0042] It can be understood that directly installing the proportion distributor 14 on the transfer pump body 13 can simplify the installation process, reduce intermediate links and connectors, thereby improving the installation efficiency. The direct installation method can minimize the space occupied between components, making the entire foaming assembly more compact and suitable for installation inside a smart toilet with limited space.

[0043] In the connection mode where the output end of the transfer pump body 13 is communicated with the inlet; the first outlet 141 is communicated with the propellant pipe 15, and the second outlet 142 is communicated with the liquid return port 112, it is not limited to the above three embodiments. Under different usage requirements, the connection modes can be flexibly selected from each other. For another example: the output end of the transfer pump body 13 is communicated with the inlet through a flexible pipe; the first outlet 141 is communicated with the propellant pipe 15 through a rigid pipe, and the second outlet 142 is directly communicated with the liquid return port 112, etc.

[0044] Furthermore, as Figure 2 and Figure 4 shown, a joint assembly 2 is provided between the proportion distributor 14 and the foaming device 12. The joint assembly 2 includes a first joint 21 and a second joint 22 that are detachably connected. The first joint 21 is connected to the proportion distributor 14 through a flexible pipe, and the second joint 22 is connected to the propellant pipe 15 through a flexible pipe.

[0045] It can be understood that the proportion dispenser 14 and the foaming device 12 are detachably connected through the joint assembly 2, so that the part where the proportion dispenser 14 is located and the part where the foaming device 12 is located can be designed as a split structure, which not only facilitates the installation process. The two parts can be installed separately according to the actual installation environment first, and then quickly connected through the joint assembly 2. The first joint 21 in the joint assembly 2 is connected to the proportion dispenser 14 through a hose, and the second joint 22 is connected to the propellant pipe 15 through a hose. The advantage of hose connection lies in its high flexibility and bendability, enabling the entire connection system to adapt to the complex pipeline layout and bending requirements inside the toilet. In a limited space, the hose connection can easily bypass other components to ensure the smooth delivery of the foaming agent, and it is also more convenient during installation and maintenance, reducing the installation difficulty and cost.

[0046] Preferably, the delivery pump body 13 is a peristaltic pump, and in other embodiments, a centrifugal pump, a positive displacement pump, a reciprocating pump, etc. can also be used.

[0047] It can be understood that the working principle of the peristaltic pump is to generate a pressure difference by the rollers rolling on the hose, thereby pushing the foaming agent to flow. It can accurately measure and control the foaming agent. By adjusting the speed of the rollers and the diameter of the hose, precise adjustment of the dosage of the foaming agent can be achieved to meet the toilets with different usage requirements. And the peristaltic pump can handle foaming agents with a certain viscosity. Through the rolling of the rollers on the hose, effective delivery can be achieved even in the case of high viscosity. The peristaltic pump also has good self-priming ability, and can perform vacuum liquid suction and transmission of the foaming agent, so that during the delivery process, even if there are bubbles or air in the storage or pipeline of the foaming agent, they can be effectively sucked away to ensure the accuracy and stability of the delivery. At the same time, when transporting the foaming agent, the only medium in contact is the hose, and there are no other components such as valves in contact with the medium, which greatly reduces the possibility of foaming agent leakage, has excellent sealing performance, ensures the delivery efficiency of the foaming agent and prevents waste. The daily maintenance of the peristaltic pump is relatively simple, only the pump body needs to be kept clean. If the hose needs to be replaced, no additional tools are required and one person can complete it.

[0048] It can be understood that using a peristaltic pump as the supply power source of the foaming agent can also make the supply process stable. The supply of the foaming agent adopts a branched reflux structure. A proportion dispenser 14 is set at the output end of the peristaltic pump. When the foaming agent is transported, the output flow of the peristaltic pump is distributed by the proportion dispenser 14, and the flow rate suitable for foaming is output into the foaming device 12, and the excess flow is returned to the agent tank 11 for storage, so as to improve the utilization rate of the foaming agent.

[0049] Embodiment 2:

[0050] On the basis of Embodiment 1, as Figure 3 andFigure 4 As shown, the foaming device 12 includes a connector 16, a foaming tube 17, and a nozzle 18 that are sequentially connected and communicate with each other. The connector 16 has a first constriction section 165. The foaming tube 17 includes an expansion section 171, a middle section 172, and a tail section 173 that communicate with each other in sequence from upstream to downstream. The expansion section 171 is sleeved outside the first constriction section 165. A gap is provided between the inner wall of the expansion section 171 and the outer diameter of the first constriction section 165 to form a negative pressure area. The expansion section 171 is provided with an air inlet pipe that communicates with the negative pressure area. The propellant pipe 15 is arranged in the middle section 172.

[0051] It can be understood that when the water flow passes through the first constriction section 165 of the connector 16 and enters the expansion section 171 of the foaming tube 17, due to the increase in flow velocity, a negative pressure area will be formed in the gap area between the expansion section 171 and the first constriction section 165. This is because the increase in flow velocity causes the pressure in this area to decrease, thus forming a pressure difference with the external atmospheric pressure. Since the expansion section 171 is sleeved outside the first constriction section 165 and the expansion section 171 is also provided with an air inlet pipe that communicates with the negative pressure area, external air will be sucked into the foaming tube 17 and mixed with the water flow. Without an additional power air source, the air can be sucked in through the power of the water flow itself, thus saving energy costs. The middle section 172 of the foaming tube 17 is provided with a propellant pipe 15 for adding a foaming agent. Since the air inlet pipe is arranged upstream of the propellant pipe 15, the air is first mixed with the water and then mixed with the foaming agent, which helps to form more stable and more uniform foam, and then the foam is discharged through the nozzle 18 and acts on the toilet bowl.

[0052] Furthermore, the connector 16 and the foaming tube 17 are of a split structure. A fixing pin 161 is fixed on the connector 16. The foaming tube 17 is provided with a through groove 162 extending radially and a fixing groove 163 extending circumferentially. One end of the through groove 162 communicates with one end of the fixing groove 163, and the other end of the through groove 162 is open. The fixing pin 161 is adapted to the fixing groove 163 and the through groove 162, and the fixing pin 161 is connected to the fixing groove 163 so that the connector 16 and the foaming tube 17 are fixed axially on the foaming tube 17.

[0053] It can be understood that the fixing pin 161 is aligned with the through slot 162 on the foaming tube 17 and inserted. Part or all of the fixing pin 161 enters the through slot 162. After the insertion is completed, the connector 16 is rotated so that the fixing pin 161 originally in the through slot 162 can move along the circumferential path of the fixing slot 163. As the connector 16 rotates, the fixing pin 161 originally in the through slot 162 will gradually approach the fixing slot 163 communicating with the through slot 162. Since the through slot 162 extends radially and has an open end, the fixing pin 161 enters the fixing slot 163, and the connector 16 and the foaming tube 17 are fixed axially along the foaming tube 17, which is firm and reliable, and can effectively prevent the connector 16 from moving or loosening on the foaming tube 17. The design of the split structure enables the connector 16 and the foaming tube 17 to be easily assembled and disassembled, improving the flexibility and maintainability of the system.

[0054] Preferably, the extending direction of the fixing slot 163 from the end close to the through slot 162 to the end away from the through slot 162 is the same as the screwing direction of the thread on the connector 16.

[0055] It can be understood that when the connector 16 and the foaming tube 17 are locked, the connector 16 will rotate in the screwing direction of the thread. The rotation direction during the locking process of the connector 16 and the foaming tube 17 is the same as the screwing direction of the thread on the connector 16. At this time, the extending direction of the fixing slot 163 is consistent with the rotation direction of the connector 16. If the extending direction of the fixing slot 163 is inconsistent with the screwing direction of the connector 16, then during the process of screwing the connector 16, the fixing pin 161 may generate a reverse force in the fixing slot 163, and this force may cause the already connected foaming tube 17 to become loose. Since the extending direction of the fixing slot 163 is the same as the screwing direction of the connector 16, when the connector 16 rotates, the fixing pin 161 will generate a force in the same direction as the screwing direction in the fixing slot 163, and this force will further strengthen the connection between the connector 16 and the foaming tube 17.

[0056] Preferably, the inner diameter of the middle section 172 is smaller than the inner diameter of the expansion section 171, and there is a transition section 174 between them.

[0057] It can be understood that when the water flow flows from the expansion section 171 into the middle section 172, due to the smaller inner diameter of the middle section 172, the flow rate will increase, and a negative pressure will be generated here. The transition section 174 is designed in a trumpet shape, which can enable the fluid to achieve a smooth transition when flowing from the larger expansion section 171 into the smaller middle section 172, reduce the turbulence and energy loss in the fluid flow, ensure that the mixture of air and water can smoothly enter the middle section 172, and further enhance the mixing effect.

[0058] Preferably, the foaming tube 17 and the nozzle 18 are of a split structure, and the foaming tube 17 and the nozzle 18 are detachably connected by a snap clip 181. The inner diameter of the first contraction section 165 changes from large to small; a sealing ring is provided at the connection between the connector 16 and the foaming tube 17; a sealing ring is provided at the connection between the foaming tube 17 and the nozzle 18; a sealing ring is provided at the connection between the propellant tube 15 and the additive head 151.

[0059] It can be understood that the foaming tube 17 and the nozzle 18 are designed as a split structure and are detachably connected by a snap clip 181, making the installation process more convenient. Because users can replace only the nozzle 18 according to different toilet types or requirements without replacing the entire foaming tube 17 assembly, which not only saves costs but also improves the applicability of the product; the inner diameter of the first contraction section 165 is designed to change from large to small, so that when the water flow passes through the contraction section, the water flow speed will increase, which helps to increase the uniformity of the foam; sealing rings are provided at the connections between the connector 16 and the foaming tube 17, between the foaming tube 17 and the nozzle 18, and between the propellant tube 15 and the additive head 151 to prevent liquid or gas from leaking at the connections and ensure the sealing of the system. By adding sealing rings, the risk of performance degradation caused by leakage can be effectively reduced.

[0060] Further, the nozzle 18 is installed on the toilet, and the nozzle 18 is fixed on the toilet using a nut 182, a gasket 183, and a conical gasket 184 with fixing threads. As shown in the figures, the nozzle of the nozzle 18 is deflected and installed towards the side of the toilet. After the tail section 173 of the foaming tube 17 is inserted and installed with the nozzle 18, it is locked by a snap clip 181.

[0061] In another embodiment, a flow disturbing member 19 is provided in the tail section 173.

[0062] It can be understood that the tail section 173 is located downstream of the middle section 172 and the expansion section 171. By providing the flow disturbing member 19 in the tail section 173, the foaming agent, water, and air are fully mixed, causing the mixture to change direction and have uneven velocity distribution, resulting in vortices and turbulence in the fluid. This can greatly increase the contact area between water, the foaming agent, and air, enabling them to be more fully mixed together. This strong mixing effect can ensure that the foaming agent is evenly dispersed in water, and at the same time, air can be more evenly dissolved or dispersed in water, thereby forming finer and more uniform foam. When the intelligent toilet flushes, it can produce richer and finer foam, which can better cover the surface of the toilet, prevent water splashing, inhibit odors, etc., thus optimizing the user experience.

[0063] Preferably, an additive head 151 is installed on the propellant pipe 15, and a duckbill valve 152 is installed between the additive head 151 and the propellant pipe 15 to enable the unidirectional flow of liquid from the additive head 151 to the propellant pipe 15.

[0064] It can be understood that the propellant pipe 15 is connected to the middle section 172, and the inner diameter of the middle section 172 is smaller than that of the expansion section 171. When water flows into the middle section 172 through the expansion section 171, the flow rate of the water will increase. Due to the relatively fast flow rate in the middle section 172, when the foaming agent enters the propellant pipe 15 from the additive head 151 and flows towards the middle section 172, the relatively fast flow rate may cause the liquid to flow back from the middle section 172 to the additive head 151 or the foaming agent container, thereby possibly contaminating the foaming agent and causing waste. By adding the duckbill valve 152, when the foaming agent enters the propellant pipe 15 from the additive head 151, the duckbill valve 152 will open to allow the liquid to pass through; when the relatively fast flow rate in the middle section 172 may cause backflow, the duckbill valve 152 will provide sufficient resistance to close to prevent the reverse flow of the liquid, ensuring that the liquid can only flow unidirectionally from the additive head 151 to the propellant pipe 15 and avoiding the risk of backflow.

[0065] Embodiment 3:

[0066] An intelligent toilet, as Figures 1 to 6 shown, includes a toilet base 3, a toilet lid assembly 4, a flushing device 5 and a foaming assembly. The foaming assembly includes a reagent tank 11, a foaming device 12, a delivery pump body 13 and a proportioning dispenser 14 having one inlet and two outlets. The reagent tank 11 is provided with a liquid outlet 111 and a liquid return port 112. The foaming device 12 is provided with a propellant pipe 15. The input end of the delivery pump body 13 is communicated with the liquid outlet 111, and the output end of the delivery pump body 13 is communicated with the inlet. Among the two outlets, the first outlet 141 communicated with the propellant pipe 15, and the second outlet 142 communicated with the liquid return port 112. The reagent tank 11 and the delivery pump body 13 are installed on the toilet lid assembly 4, and the foaming device 12 and the flushing device 5 are installed on the toilet base 3.

[0067] Further, the toilet lid assembly 4 includes a bottom plate 41 and a cover body 42 covering the bottom plate 41. The reagent tank 11 is installed on the bottom plate 41, and a reagent addition port 43 is provided at a position corresponding to the reagent tank 11 on the cover body 42, and a reagent plug 44 is installed on the reagent addition port 43 in an openable and closable manner.

[0068] It can be understood that the toilet lid assembly 4 is composed of a bottom plate 41 and a lid body 42, which together constitute the main structure of the toilet lid assembly 4. The bottom plate 41 is used to fix or carry other components, and the part of the lid body 42 covering the bottom plate 41 is used to close the top of the toilet lid assembly 4. The agent tank 11 is installed on the bottom plate 41 and fixed to the bottom plate 41, thus ensuring its stability. At the position corresponding to the agent tank 11 on the lid body 42, there is an agent adding port 43, which is convenient for users to add or supplement the foaming agent into the agent tank 11. By designing such an opening, it is possible to avoid opening the entire toilet lid assembly 4 or disassembling the agent tank 11 for agent adding operation, thereby improving the convenience of use. An agent plug 44 is installed on the agent adding port 43 in an openable and closable manner. The main function of the agent plug 44 is to seal the agent adding port 43 to prevent liquid leakage or external pollutants from entering the agent tank 11. When agent adding is required, the user can open the agent plug 44 and add liquid into the agent tank 11 through the agent adding port 43; after the agent adding is completed, close the agent plug 44 to complete the overall closing and sealing.

[0069] Further, the flushing device 5 includes a water tank assembly 51, a flush pump 52, a flow path switching valve 53, an upper spout 54 and a lower spout 55. The upper spout 54 is installed at a position on the inner side of the toilet base 3 near the top. The pump inlet end of the flush pump 52 is communicated with the water tank assembly 51, the pump outlet end of the flush pump 52 is communicated with the flow path switching valve 53 through a pipeline, the lower spout 55 is communicated with the flow path switching valve 53 through a pipeline, and the upper spout 54 is communicated with the flow path switching valve 53 through the foaming device 12.

[0070] It can be understood that the position near the top on the inner side can make the foaming liquid flowing out from the upper spout 54 as close as possible to the top of the toilet bowl, making the cleaning more thorough. The flow path switching valve 53 is between the pump outlet end of the flush pump 52 and the foaming device 12, and switches the water flow path by controlling the valve. The flow path switching valve 53 has two outlets, one connected to the upper spout 54 and the other connected to the lower spout 55. The foaming device 12 is installed in the water path of the upper spout 54 and shares the spout with the upper spout 54. When the flow path switching valve 53 switches to the upper spout 54, the foaming device 12 can work simultaneously to spray out the foam and the water flow together, so the foam generation speed is very fast. This fast foam generation speed ensures that the foam can quickly cover the inner wall of the toilet bowl, achieving the effect of swirling and moistening the wall. Swirling and moistening the wall not only helps to clean the toilet bowl, but also reduces the adhesion of stains.

[0071] As can be seen from the above, the power source for the overall flushing action of the toilet, that is, the flushing, adopts the method of water tank - flush pump 52 - flow path switching valve 53 - upper spout 54 / lower spout 55, and foaming is carried out by pumping water from the water tank. The foaming process is not affected by the tap water pressure.

[0072] Preferably, the flush pump 52 adopts PWM control.

[0073] It is understandable that the use of the flushing pump 52 to directly extract water from the water tank makes the water flow no longer directly dependent on the water pressure of the tap water. The water pressure of the tap water may fluctuate due to various factors (such as the load of the water supply system, pipe aging, etc.). This fluctuation will cause the water pressure to be unstable and thus affect the foaming effect. The flushing pump 52 can provide a relatively stable water pressure to ensure the stability of the water flow during the foaming process. The PWM control can accurately adjust the power output of the flushing pump 52 and thus control the water flow. During the foaming process, appropriate flushing parameters are used to ensure that the mixing ratio with the foaming agent is optimal. The mutual cooperation of the two ensures the stability and effect of the foaming process.

[0074] Preferably, the power of the flushing pump 52 is gradually increased during the startup phase.

[0075] It is understandable that when the flushing pump 52 starts, if the power reaches the maximum value instantly, it may cause a sudden increase in water flow, thereby generating greater noise and impact force. In order to avoid this situation, by controlling the power of the flushing pump 52 during the startup phase to gradually increase, the water flow can be increased steadily to avoid sudden water flow impact. The smooth transition can not only reduce noise mutations, but also provide users with a more comfortable user experience.

[0076] In one embodiment, the power of the flushing pump 52 is controlled to decrease gradually during the stop phase.

[0077] It is understandable that when the flushing pump 52 is about to stop, if the power is instantly reduced to zero, it may also cause a sudden interruption of the water flow, causing noise and discomfort. In order to avoid this situation, the power of the flushing pump 52 is controlled to gradually decrease during the stop phase, so that the water flow can be steadily reduced. This method not only reduces the sudden change of noise, but also avoids the discomfort that may be caused by the sudden interruption of the water flow, thereby improving the overall performance of the system and user experience.

[0078] In another embodiment, the power of the flushing pump 52 is gradually increased during the startup phase and the power of the flushing pump 52 is gradually decreased during the stop phase.

[0079] Furthermore, the inner side surface of the upper nozzle 54 facing the toilet base 3 is deflected by 10° to 30°.

[0080] It can be understood that the upper nozzle 54 is deflected 10 to 30 degrees toward the inner wall of the toilet in order to guide the water flow so that the water flow can flow directly to the inner wall of the toilet after being sprayed out, rather than directly rushing to the center of the toilet, so that the water flow can more effectively cover the inner wall of the toilet, thereby enhancing the cleaning effect. At the same time, since the water flow does not rush directly to the center of the toilet, it can also reduce the direct impact of the water flow on the center of the toilet and reduce noise.

[0081] It can be obtained that the toilet lid assembly 4 includes a bottom plate 41 and a lid body 42 covering the bottom plate 41. The agent tank 11 is installed on the bottom plate 41. At a position corresponding to the agent tank 11 on the lid body 42, there is an agent adding port 43, and an agent plug 44 is installed on the agent adding port 43 in an openable and closable manner.

[0082] It can be understood that the toilet lid assembly 4 is composed of a bottom plate 41 and a lid body 42, which together constitute the main structure of the toilet lid assembly 4. The bottom plate 41 is used to fix or carry other components, and the part of the lid body 42 covering the bottom plate 41 is used to close the top of the toilet lid assembly 4. The agent tank 11 is installed on the bottom plate 41 and fixed to the bottom plate 41 to ensure its stability. At a position corresponding to the agent tank 11 on the lid body 42, there is an agent adding port 43 to facilitate users to add or supplement the foaming agent into the agent tank 11. By designing such an opening, it is possible to avoid opening the entire toilet lid assembly 4 or disassembling the agent tank 11 for agent adding operation, thus improving the convenience of use. An agent plug 44 is installed on the agent adding port 43 in an openable and closable manner. The main function of the agent plug 44 is to seal the agent adding port 43 to prevent liquid leakage or external contaminants from entering the agent tank 11. When agent adding is required, the user can open the agent plug 44 and add liquid into the agent tank 11 through the agent adding port 43. After the agent adding is completed, close the agent plug 44 to complete the overall closing and sealing.

[0083] As can be seen from the above, the toilet lid assembly 4 further includes a decorative cover 45. The decorative cover is placed on the lid body 42 to cover the agent adding port 43, making the whole machine more beautiful. The toilet lid assembly 4 is an installation carrier for the agent tank 11 of the foaming device 12 and the delivery pump body 13. The agent plug 44 is inserted into the corresponding agent adding port 43. The agent tank 11 adopts a semi-open structure and completes the overall closing and sealing through installation with the lid body 42. The delivery pump body 13 is installed on the bottom plate 41, and the rear end is sequentially connected to the proportion distributor 14 and the joint assembly 2. The agent tank 11, the delivery pump body 13, the proportion distributor 14 and the joint assembly 2 are all connected by hoses. The opening of the agent tank 11 is connected to the inlet of the delivery pump body 13 through a hose, the outlet of the delivery pump body 13 is connected to the inlet of the proportion distributor, the first outlet 141 of the proportion distributor 14 is connected to the joint of the joint assembly 2, and the second outlet 142 of the proportion distributor 14 is connected to the opening of the agent tank 11.

[0084] The flushing device 5 further includes a water tank assembly 51. The water tank assembly 51, the flush pump 52, the flow path switching valve 53, the upper spray nozzle 54 and the lower spray nozzle 55 are sequentially connected by hoses. The flow path switching valve 53 is used to switch the water flow between the upper spray nozzle 54 and the lower spray nozzle 55 to complete the flushing function. The foaming device 12 is installed between the flow path switching valve 53 and the upper spray nozzle 54, and the outlet of the foaming device 12 is connected to the upper spray nozzle 54. The foaming device 12 has a structure similar to a Venturi tube inside, which sucks air from the air inlet into the foaming device 12 for foaming and then discharges it from the upper spray nozzle 54.

[0085] The propellant inlet of the foaming device 12 is connected to the second joint 22 of the joint assembly 2 through a hose.

[0086] During installation, since the toilet base 31 and the toilet lid assembly 4 are of a split structure, it is only necessary to connect the first joint 21 on the toilet lid assembly 4 to the second joint 22 on the toilet base 3. After the joint is inserted, rotate it to complete the locking of the joint assembly 2, and then the assembly of the foaming system can be completed.

Claims

1. A foaming component for a smart toilet, characterized in that: It includes a reagent box, a foaming device, a delivery pump body and a proportional distributor, the proportional distributor has an inlet, a first outlet and a second outlet, the reagent box is provided with a liquid outlet and a liquid return port, the foaming device is provided with a reagent feed pipe, the input end of the delivery pump body is connected to the liquid outlet, the output end of the delivery pump body is connected to the inlet, the first outlet is connected to the reagent feed pipe, and the second outlet is connected to the liquid return port.

2. The foaming component of a smart toilet according to claim 1, characterized in that: The output end of the delivery pump body is connected to the inlet through a hose or a hard pipe; or, the proportional distributor is installed on the delivery pump body, and the output end is directly connected and connected to the inlet.

3. The foaming component of a smart toilet according to claim 1, characterized in that: The first outlet is communicated with the feed pipe through a hose, and the second outlet is communicated with the liquid return port through a hose.

4. The foaming component of a smart toilet according to claim 1, characterized in that: A joint assembly is provided between the proportional distributor and the foaming device, and the joint assembly includes a first joint and a second joint that are detachably connected, the first joint is connected to the proportional distributor via a hose, and the second joint is connected to the feed pipe via a hose.

5. A foaming component for an intelligent toilet according to any one of claims 1 to 4, characterized in that: The delivery pump body is a peristaltic pump.

6. A foaming component for an intelligent toilet according to any one of claims 1 to 4, characterized in that: The foaming device includes a connector, a foaming tube and a nozzle which are connected and communicated in sequence, the connector is provided with a first contraction section, the foaming tube includes an expansion section, a middle section and a tail section which are connected in sequence from upstream to downstream, the expansion section is sleeved on the outside of the first contraction section, a gap is provided between the inner wall of the expansion section and the outer diameter of the first contraction section to form a negative pressure zone, the expansion section is provided with an air inlet pipe which is communicated with the negative pressure zone, and the agent inlet pipe is provided in the middle section.

7. A smart toilet, comprising a toilet base, a toilet cover assembly and a flushing device, characterized in that: It also includes the foaming component described in claim 1, the agent box and the delivery pump body are installed on the toilet cover assembly, and the foaming device and the flushing device are installed on the toilet base.

8. The intelligent toilet according to claim 7, characterized in that: The toilet cover assembly comprises a base plate and a cover body covering the base plate, the agent box is installed on the base plate, and a dosing port is provided at a position corresponding to the cover body and the agent box, and a dosing port is installed with a dosing plug which can be opened and closed.

9. The intelligent toilet according to claim 7, characterized in that: The flushing device includes a water tank assembly, a flushing pump, a flow switching valve, an upper nozzle and a lower nozzle. The upper nozzle is installed at an upper position on the inner side of the toilet base. The pump inlet end of the flushing pump is connected to the water tank assembly, the pump outlet end of the flushing pump is connected to the flow switching valve through a pipeline, the lower nozzle is connected to the flow switching valve through a pipeline, and the upper nozzle is connected to the flow switching valve through the foaming device.

10. The intelligent toilet according to claim 9, characterized in that: The inner side surface of the upper nozzle facing the toilet base is deflected by 10° to 30°.

Images