A nozzle sterilization method of an intelligent toilet

Abstract

The present application relates to the field of sanitary ware, and discloses a nozzle sterilization method of an intelligent closestool, comprising the following steps: step 100, a user starts a cleaning function; step 400, a spray rod is in an extended state, and a water outlet sprays hot water to perform flushing; step 500, the water outlet stops spraying water, and then the spray rod is retracted; step 800, a light-emitting part of a UV lamp assembly is turned on to perform sterilization; and step 900, the light-emitting part of the UV lamp assembly is turned off; wherein, steps 200 and 300 are arranged between step 100 and step 400; step 200, the spray rod is in a retracted state, the water outlet sprays hot water to flush the UV lamp assembly; step 300, the water outlet stops spraying water, and then the spray rod is extended; and / or, steps 600 and 700 are arranged between step 500 and step 800; step 600, the spray rod is in a retracted state, the water outlet sprays hot water to flush the UV lamp assembly; and step 700, the water outlet stops spraying water. The above method can effectively reduce the adhesion of dirt around the spray hole, has good sterilization effect, and guarantees the health of the user.

Description

Technical Field

[0001] This invention relates to the field of sanitary ware, and more particularly to a method for sterilizing the nozzle of a smart toilet. Background Technology

[0002] Smart toilets clean by spraying water onto the body. As the water bounces off the body, it carries waste and splashes into the toilet bowl. Some of this wastewater can also land on the nozzle, where harmful bacteria can grow. These bacteria can then be sprayed onto the body during subsequent uses, causing infection. When multiple people use the same smart toilet, cross-infection can also occur.

[0003] For user health, the spray nozzle needs to be sterilized after use. For example, Chinese patent CN211898771U discloses a spray nozzle for a smart toilet seat, a smart toilet seat, and a smart toilet. The spray nozzle includes a bracket with a slidable water supply pipe and a fixed ultraviolet lamp assembly. The outlet of the water supply pipe has a nozzle assembly. After the user finishes washing, a drive assembly moves the nozzle assembly to the sterilization area, where the ultraviolet lamp assembly sterilizes the nozzle assembly. However, dirt easily accumulates around the ultraviolet lamp assembly and the spray nozzle in this device. This dirt blocks the ultraviolet light, thus affecting the sterilization effect of the ultraviolet lamp assembly on the nozzle assembly. Summary of the Invention

[0004] To address the technical problem of dirt easily adhering around the nozzles, this invention provides a nozzle sterilization method for a smart toilet, which effectively reduces dirt adhesion around the nozzles and has a good sterilization effect.

[0005] The specific technical solution of the present invention is as follows: a nozzle sterilization method for a smart toilet, the smart toilet including a water inlet assembly, a heating assembly, a nozzle assembly, and a UV lamp assembly, the nozzle assembly including a bracket, a spray bar retractably connected to the bracket, and a telescopic drive for driving the spray bar to extend and retract, the front part of the spray bar having a water outlet, the UV lamp assembly being mounted on the bracket, and when the spray bar is in the retracted state, the water outlet and the light-emitting part of the UV lamp assembly facing each other, further including the following steps: Step 100: The user activates the washing function; Step 400: The spray bar is in the extended position, and hot water is sprayed from the outlet for rinsing; Step 500: The water outlet stops spraying water, and then the spray bar retracts. Step 800: The light-emitting part of the ultraviolet lamp assembly is turned on to perform sterilization; Step 900: The light-emitting part of the ultraviolet lamp assembly is turned off; Between step 100 and step 400, there are steps 200 and 300; in step 200, the spray bar is in the retracted state, and hot water is sprayed from the outlet to rinse the ultraviolet lamp assembly; in step 300, the water outlet stops spraying water, and then the spray bar extends. And / or, steps 600 and 700 are provided between steps 500 and 800; in step 600, the spray bar is in the retracted state, and hot water is sprayed from the outlet to rinse the ultraviolet lamp assembly; in step 700, the outlet stops spraying water.

[0006] For the scheme with steps 200 and 300, the user rinses the UV lamp assembly before using the cleaning function to remove dirt. The water on the UV lamp assembly bounces back to the area near the spray nozzle outlet to rinse that area, keeping it moist and preventing new dirt from adhering in step 400. This also improves the UV light's effectiveness by preventing it from being blocked. Step 200, preceding step 400, also drains the transition water from the front end of the cleaning pipeline (water that hasn't reached the set temperature). For the scheme with steps 600 and 700, the user rinses the UV lamp assembly after using the cleaning function to remove dirt. The water on the UV lamp assembly bounces back to the area near the spray nozzle outlet to rinse that area, removing any new dirt that might have adhered in step 400. This makes the new dirt easier to rinse off, and the UV light is less likely to be blocked after rinsing, further improving the sterilization effect.

[0007] For the scheme with steps 200, 300, 600, and 700, the UV lamp assembly is rinsed before the user uses the cleaning function to remove some of the dirt on the UV lamp assembly and pre-wet and soften stubborn dirt. When the user rinses the UV lamp assembly after using the cleaning function, the dirt remaining on the UV lamp assembly has been softened and can be rinsed off more easily. After rinsing, the UV light is less likely to be blocked, reducing the loss during UV penetration and the impact of dirt blocking UV light during UV irradiation, thus improving the sterilization effect. Since step 200 is before step 400, it can also discharge the front-end transition water in the cleaning pipeline, which is water that has not reached the set temperature. When the user rinses the UV lamp assembly before using the cleaning function, the water flow rebounding from the UV lamp assembly can rinse the area near the spray bar outlet, pre-wetting and softening stubborn dirt on the spray bar outlet, and keeping the area near the spray bar outlet moist, making it less likely for new dirt to adhere in step 400. When the user rinses the UV lamp assembly after using the cleaning function, the dirt remaining on the spray bar outlet has been softened and can be easily rinsed clean by the rebounding water flow. After rinsing, the loss during UV penetration and the obstruction of UV light by dirt during UV irradiation are reduced, thus improving the sterilization effect.

[0008] Preferably, in step 700, after the water outlet stops spraying water, it is necessary to wait 3 to 10 seconds before proceeding to step 800.

[0009] In the above technical solution, waiting 3 to 10 seconds is required to ensure that the residual water in the pipes and outlets is completely drained. This reduces the loss of ultraviolet light penetration due to residual water and ensures that the ultraviolet lamp can effectively irradiate the area to be disinfected, thereby improving the sterilization effect.

[0010] Preferably, the set temperature of the hot water sprayed in step 200 is the same as the set temperature of the hot water sprayed in step 400; or, the set temperature of the hot water sprayed in steps 200, 400 and 600 is the same.

[0011] In the above technical solution, the water temperature for rinsing the UV lamp component is the same as the water temperature for rinsing the user, which keeps the power of the heating component constant and reduces power consumption. At the same time, the hot water in step 200 preheats the water supply pipe, so that the water supply pipe and the hot water in step 400 are at the same temperature, eliminating the need for heat exchange and further ensuring a stable water temperature for washing the body.

[0012] Preferably, the light-emitting part is provided with a light-transmitting glass on the side near the water outlet, and a water passage gap is provided between the part of the spray bar where the water outlet is located and the light-transmitting glass, and the light-emitting part and the light-transmitting glass are located above the water outlet.

[0013] In the above technical solution, a water passage gap is provided so that the sprayed hot water bounces off the transparent glass and rebounds to the area around the water outlet, thus cleaning the spray bar more effectively. The transparent glass is made of glass that can transmit ultraviolet light, and the ultraviolet light emitted by the ultraviolet lamp assembly passes through the transparent glass and illuminates the area around the water outlet, resulting in a large light emission range.

[0014] Preferably, the spray bar is tilted with the front lower than the rear.

[0015] In the above technical solution, the spray bar is tilted with the front lower and the back higher to ensure that the water in the spray bar can flow out completely. At the same time, it makes it easier for the hot water sprayed from the outlet to be aimed at the cleaning position when the spray bar is extended, thereby improving cleaning efficiency and effect.

[0016] Preferably, the front part of the bracket is provided with a guide sleeve for guiding the spray bar, and the guide sleeve is inclined and the inclination direction is the same as that of the spray bar.

[0017] In the above technical solution, the guide sleeve is set at an angle, so that dirty water can flow into the toilet along the angled guide sleeve, avoiding sewage splashing and allowing the dirty water in the nozzle to be completely drained.

[0018] Preferably, the height of the water passage gap is h, where 2mm ≤ h ≤ 4mm.

[0019] In the above technical solution, the height h is the distance between the spray bar and the transparent glass. The water outlet can be set at any position in the corresponding area of ​​the transparent glass. If the water outlet is set too far forward, the sprayed rinsing water will mainly fall on the front area of ​​the transparent glass. Due to the inclined setting of the spray bar, if the height h is too large, the hot water sprayed from the water outlet will not be able to fill the entire water passage in reverse, resulting in the back side of the transparent glass and the area behind the water outlet not being effectively rinsed, thus affecting the overall cleaning effect. If the height h is too small, the spray range of the water outlet is limited, the rinsing effect is poor, and the too small interval distance will also hinder the flow of rinsing water and sewage, reducing the cleaning efficiency.

[0020] Preferably, the water outlet includes a feminine wash outlet and a posterior wash outlet arranged at intervals. When the spray bar is in the retracted state, both the feminine wash outlet and the posterior wash outlet are located within the irradiation area of ​​the light-emitting part, and both the feminine wash outlet and the posterior wash outlet face the light-emitting part.

[0021] In the above technical solution, the front and rear spacing of the feminine wash outlet and the posterior wash outlet realizes the zoning of the cleaning function, better meeting customer needs. Both are within the irradiation range of the ultraviolet lamp component, ensuring complete sterilization.

[0022] Preferably, the ultraviolet lamp assembly includes a housing, a light-transmitting glass, and an integrated circuit board. The housing has a mounting through hole, and both the light-transmitting glass and the integrated circuit board are installed in the mounting through hole. The integrated circuit board is located above the light-transmitting glass, and the light-emitting part is located on the integrated circuit board and faces the light-transmitting glass. The top of the integrated circuit board is sealed with an upper sealant, and the ribbon cable on the integrated circuit board passes through the upper sealant. The light-transmitting glass and the housing are sealed with a lower sealant ring.

[0023] In the above technical solution, the upper and lower sealing rings fix the positions of the housing, the light-transmitting glass, and the integrated circuit board, preventing the light-transmitting glass or the integrated circuit board from loosening or shifting during use, which would affect the ultraviolet lamp irradiation effect. Simultaneously, the upper sealing ring seals the ultraviolet lamp assembly, preventing water ingress and improving the lifespan of the ultraviolet lamp assembly. The aforementioned light-transmitting glass is glass that can transmit ultraviolet light.

[0024] Preferably, the lower end of the housing is provided with a baffle plate protruding toward the spray bar, the baffle plate is located on the front side of the light-transmitting glass, and there is a second gap between the baffle plate and the spray bar.

[0025] In the above technical solution, a baffle plate is installed to prevent sewage from splashing; there is a second gap between the baffle plate and the spray bar, so that sewage can flow out smoothly.

[0026] Compared with the prior art, the present invention has the following advantages: (1) Good cleaning effect: The cleaning water system of the whole machine is combined with ultraviolet sterilization to sterilize the area around the water outlet of the spray bar. Before and after the user uses the cleaning function, the ultraviolet lamp component is rinsed and pre-wetted with hot water. The hot water has a good cleaning effect. When the hot water rinses the ultraviolet lamp component, it also rinses and pre-wets the area around the water outlet, removes dirt and reduces the subsequent adhesion of dirt. There is a water passage gap between the water outlet of the spray bar and the ultraviolet lamp component, so that the sprayed hot water bounces back to the area around the water outlet after hitting the light-transmitting glass, which improves the cleaning efficiency. (2) Good sterilization effect: After the user uses the cleaning function, the UV lamp assembly is rinsed. The rinsing can remove dirt from the UV lamp assembly and also clean the spray bar, reducing the loss during the UV penetration process and the impact of dirt blocking the UV during UV irradiation. After rinsing, wait 3 to 10 seconds before sterilization to ensure that the residual water in the pipe and outlet is completely drained. On the one hand, this reduces the loss of UV penetration due to residual water, and on the other hand, it ensures that the UV lamp can effectively irradiate the area that needs to be disinfected, thus improving the sterilization effect. Attached Figure Description

[0027] Figure 1 This invention relates to a method for sterilizing the nozzle of a smart toilet. Figure 1 ; Figure 2 This invention relates to a method for sterilizing the nozzle of a smart toilet. Figure 2 ; Figure 3 This invention relates to a method for sterilizing the nozzle of a smart toilet. Figure 3 ; Figure 4 This is an exploded view of part of the nozzle structure of the present invention; Figure 5 This is a schematic diagram of the structure of the nozzle of the present invention in the extended state; Figure 6 This is a cross-sectional view of the nozzle head of the present invention; Figure 7 This is a schematic diagram of the water flow during the posterior washing process of the present invention; Figure 8 This is a schematic diagram of the water flow during the feminine wash process according to the present invention; Figure 9 This is a schematic diagram of the ultraviolet irradiation area of ​​the present invention; Figure 10 This is an exploded view of the structure of the ultraviolet lamp assembly of the present invention.

[0028] In the diagram: 5. Nozzle assembly; 501. Elastic buckle; 502. Mounting groove; 503. Guide sleeve; 504. Buttock wash outlet; 505. Feminine wash outlet; 506. Spray bar; 6. UV lamp assembly; 601. Housing; 602. Integrated circuit board; 6021. Cable; 603. Transparent glass; 604. Upper sealant; 605. Lower sealant ring; 606. Water baffle; 607. Second gap; 608. UV irradiation area; 609. Snap-fit ​​part; 7. Bracket; 8. Water passage gap. Detailed Implementation

[0029] The present invention will now be described through specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Variations and advantages that can be conceived by those skilled in the art without departing from the spirit and scope of the inventive concept are included in the present invention, and the scope of protection of the present invention is defined by the appended claims and any equivalents thereof.

[0030] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Unless otherwise specified, the raw materials and equipment used in this invention are conventional in the art and can be obtained through conventional commercial means; unless otherwise specified, the methods used in this invention are conventional methods in the art.

[0031] It should be understood that in this invention, "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0032] Example 1: This invention provides a nozzle sterilization method for a smart toilet. The smart toilet includes a base plate, on which are provided a water inlet assembly, a heating assembly, a water pump assembly, and a nozzle assembly 5. The components are connected sequentially via hoses in the order of water inlet assembly, heating assembly, water pump assembly, and nozzle assembly 5. Tap water is delivered to the water inlet assembly through a pipe, and after being controlled by the water inlet assembly, it is delivered to the heating assembly. The heating assembly heats the water to the temperature set by the user and then delivers the hot water to the water pump assembly. The water pump assembly pressurizes the water flow and delivers it to the nozzle assembly 5. The nozzle assembly 5 is connected to a hot water circulation pipe. When the user does not activate the washing function, the hot water enters the hot water circulation pipe and circulates. When the user activates the washing function, the hot water is sprayed out from the nozzle assembly 5. Understandably, the components can also be connected sequentially via hoses in the order of water inlet component, water pump component, heating component, and nozzle component 5. Tap water is delivered to the water inlet component through a pipe, and after being controlled by the water inlet component, it is delivered to the water pump component. The water pump component pressurizes the water and delivers it to the heating component. The heating component heats the water to the user-set temperature and then delivers the hot water to the nozzle component 5. The nozzle component 5 is connected to a hot water circulation pipe. When the user has not activated the washing function, the hot water circulates in the hot water circulation pipe. When the user activates the washing function, the hot water is sprayed out from the nozzle component 5. Understandably, the water pump component is not necessary in the above scheme; its function can be achieved by the water pressure of the tap water itself.

[0033] In this embodiment, as Figure 6 and Figure 7 As shown, the nozzle assembly 5 includes a bracket 7, a spray bar 506 retractably connected to the bracket 7, and a telescopic drive for extending and retracting the spray bar 506. The spray bar 506 has a water outlet at its front. The ultraviolet lamp assembly 6 is mounted on the bracket 7. When the spray bar 506 is in the retracted state, the water outlet and the light-emitting part of the ultraviolet lamp assembly 6 are positioned facing each other, i.e., the light-emitting part of the ultraviolet lamp assembly 6 faces the water outlet, and the water outlet faces the light-emitting part. The water outlet is located within the irradiation area of ​​the light-emitting part, ensuring that the ultraviolet light emitted by the ultraviolet lamp assembly 6 irradiates the water outlet and its surrounding area, resulting in good sterilization. In the figure, the X direction is from back to front.

[0034] In this embodiment, as Figure 2 As shown, the nozzle sterilization method for a smart toilet provided by the present invention includes the following steps: Step 100: The user activates the washing function; Step 200: The spray bar 506 is in the retracted state, and hot water sprays out of the outlet to rinse the ultraviolet lamp assembly 6; Step 300: The water outlet stops spraying water, and then the spray bar 506 extends. Step 400: The spray bar 506 is in the extended position, and hot water is sprayed from the outlet for rinsing. Step 500: The water outlet stops spraying water, and then the spray bar 506 retracts. Step 800: The light-emitting part of the ultraviolet lamp assembly 6 is turned on to perform sterilization; Step 900: The light-emitting part of the ultraviolet lamp assembly 6 is turned off.

[0035] In this embodiment, the user rinses the UV lamp assembly 6 before using the cleaning function to remove dirt. The water on the UV lamp assembly 6 bounces back to the vicinity of the spray bar 506 outlet to rinse the area, keeping it moist and preventing new dirt from adhering in step 400. This also prevents the UV rays from being blocked, improving the sterilization effect. Since step 200 occurs before step 400, it also drains the transition water from the front end of the cleaning pipeline. This transition water is water that has not yet reached the set temperature. Using hot water for rinsing provides good cleaning results. In this embodiment, the water path for rinsing the user is the same as the water path for rinsing the UV lamp assembly 6 and the area around the outlet, saving both cost and overall machine space.

[0036] In another embodiment, such as Figure 3 As shown, a method for sterilizing the nozzle of a smart toilet includes the following steps: Step 100: The user activates the washing function; Step 400: The spray bar 506 is in the extended position, and hot water is sprayed from the outlet for rinsing. Step 500: The water outlet stops spraying water, and then the spray bar 506 retracts. Step 600: The spray bar 506 is in the retracted state, and hot water sprays out of the outlet to rinse the ultraviolet lamp assembly 6. Step 700: The water outlet stops spraying water; Step 800: The light-emitting part of the ultraviolet lamp assembly 6 is turned on to perform sterilization; Step 900: The light-emitting part of the ultraviolet lamp assembly 6 is turned off.

[0037] In this embodiment, after the user uses the washing function, they rinse the UV lamp assembly 6 to remove dirt. The water on the UV lamp assembly 6 bounces back to the vicinity of the spray bar 506 outlet to rinse that area, removing new dirt that adhered in step 400. This new dirt is easier to rinse off. After rinsing, the loss during UV penetration in step 800 and the obstruction of UV light by dirt during UV irradiation are reduced, improving the sterilization effect of subsequent sterilization steps. Hot water rinsing provides excellent cleaning. In this embodiment, the water path for rinsing the user is the same as the water path for rinsing the UV lamp assembly 6 and the area around the outlet, saving both cost and overall machine space.

[0038] In another embodiment, such as Figure 1 As shown, a method for sterilizing the nozzle of a smart toilet includes the following steps: Step 100: The user activates the washing function; Step 200: The spray bar 506 is in the retracted state, and hot water sprays out of the outlet to rinse the ultraviolet lamp assembly 6; Step 300: The water outlet stops spraying water, and then the spray bar 506 extends. Step 400: The spray bar 506 is in the extended position, and hot water is sprayed from the outlet for rinsing. Step 500: The water outlet stops spraying water, and then the spray bar 506 retracts. Step 600: The spray bar 506 is in the retracted state, and hot water sprays out of the outlet to rinse the ultraviolet lamp assembly 6. Step 700: The water outlet stops spraying water; Step 800: The light-emitting part of the ultraviolet lamp assembly 6 is turned on to perform sterilization; Step 900: The light-emitting part of the ultraviolet lamp assembly 6 is turned off.

[0039] In this embodiment, the UV lamp assembly 6 is rinsed before the user uses the cleaning function to remove some of the dirt on it and pre-wet and soften stubborn dirt. When the user rinses the UV lamp assembly 6 after using the cleaning function, the remaining dirt on it has been softened and can be easily rinsed clean. After rinsing, the UV light is less likely to be blocked, reducing the loss during UV penetration in step 800 and the impact of dirt blocking UV light during UV irradiation, thus improving the sterilization effect. Since step 200 is before step 400, it can also discharge the front-end transition water in the cleaning pipeline, which is water that has not reached the set temperature. When the user rinses the UV lamp assembly 6 before using the cleaning function, the water jets rebounding from the UV lamp assembly 6 can rinse the area near the nozzle of the spray bar 506, pre-wetting and softening stubborn dirt on the nozzle and keeping the area near the nozzle moist, making it less likely for new dirt to adhere in step 400. When the user rinses the UV lamp assembly 6 after using the cleaning function, the remaining dirt on the nozzle of the spray bar 506 has been softened and can be easily rinsed away by the rebounding water jets. After rinsing, the loss during UV penetration in step 800 and the obstruction of UV light by dirt during UV irradiation are reduced, improving the sterilization effect. Hot water rinsing provides good cleaning results. In this embodiment, the water path for rinsing the user in step 400 is the same cleaning water path as the water path for rinsing the UV lamp assembly 6 and the area around the outlet in steps 200 and 600. It can be understood that the water path for rinsing the user in step 400 and the water path for rinsing the UV lamp assembly 6 and the area around the outlet in step 600 can also be different cleaning water paths.

[0040] Example 2: Based on Example 1, referring to Figures 4 to 10As shown, the present invention provides a nozzle sterilization method for a smart toilet, including step 700, after the water outlet stops spraying water, it is necessary to wait 3 to 10 seconds before executing step 800; the set temperature of the hot water sprayed in step 200 is the same as the set temperature of the hot water sprayed in step 400, and the set temperature of the hot water sprayed in steps 200, 400 and 600 is the same.

[0041] In this method, a 3-10 second wait is allowed to ensure that residual water in the pipes and outlets is completely drained. This reduces UV penetration loss due to residual moisture and ensures that the UV lamps effectively irradiate the areas requiring disinfection, improving the sterilization effect. The water temperature for rinsing the UV lamp assembly 6 is the same as the water temperature for rinsing the user, ensuring a constant heating component power and reducing power consumption. Simultaneously, the hot water in step 200 preheats the water supply pipes, ensuring that the water supply pipes and hot water have the same temperature in step 400, eliminating the need for heat exchange and guaranteeing a stable water temperature for washing the body.

[0042] like Figures 4 to 9 As shown, in this embodiment, the UV lamp assembly 6 and the nozzle assembly 5 are snapped together. The nozzle assembly 5 includes a bracket 7 and a spray bar 506. The spray bar 506 is mounted on the bracket 7. A guide sleeve 503 for guiding the spray bar 506 is fixed to the front of the bracket 7. The spray bar 506 is connected to a telescopic drive member. The spray bar 506 can extend and retract relative to the guide sleeve 503 under the drive of the telescopic drive member. When the spray bar 506 is in the retracted state, the front of the spray bar 506 does not protrude from the guide sleeve 503. The upper part of the guide sleeve 503 is provided with a mounting groove 502. The edge of the mounting groove 502 is provided with an elastic buckle 501. The side of the UV lamp assembly 6 is provided with a snap-fit ​​part 609 adapted to the elastic buckle 501. 1. The UV lamp assembly 6 is engaged with the mounting groove 502 via a snap-fit ​​part 609, and the UV lamp assembly 6 protrudes from the mounting groove 502. A rectangular opening is provided in the mounting groove 502 to allow UV light to pass through. When the spray bar 506 is in the retracted state, the light-emitting part of the UV lamp assembly 6 faces the water outlet, and the water outlet faces the light-emitting part. A translucent glass 603 is provided on the side of the light-emitting part near the water outlet. A water passage gap 8 is provided between the part of the spray bar 506 where the water outlet is located and the translucent glass 603. The height of the water passage gap 8 is h, that is, the distance between the spray bar 506 and the translucent glass 603 is h. The light-emitting part and the translucent glass 603 are located above the water outlet. In this embodiment, the height h of the water passage gap 8 is 3mm. It can be understood that in other embodiments, h is in the range of 2mm ≤ h ≤ 4mm. The translucent glass 603 in this embodiment is quartz glass. In the figure, the X direction is from back to front, and the spray bar 506 extends in the X direction.

[0043] This device, by setting a water passage gap 8, allows the sprayed hot water to bounce off the transparent glass 603 and bounce back to the area around the water outlet, thus better cleaning the spray bar 506. The water outlet can be set at any position in the corresponding area of ​​the transparent glass. If the water outlet is set too far forward, the sprayed rinsing water will mainly fall on the front area of ​​the transparent glass. Due to the inclined setting of the spray bar, if the height h of the water passage gap 8 is too large, the hot water sprayed from the water outlet will not be able to fill the entire water passage gap in reverse, resulting in the back side of the transparent glass and the area behind the water outlet not being effectively rinsed, thus affecting the overall cleaning effect. If the height h of the water passage gap 8 is too small, the spray range of the water outlet is limited, the rinsing effect is poor, and the too small interval distance will also hinder the flow of rinsing water and sewage, reducing the cleaning efficiency. The system features a translucent glass 603 and a rectangular opening, with the area of ​​the translucent glass 603 being no smaller than that of the rectangular opening. The ultraviolet light emitted by the UV lamp assembly 6 passes through the translucent glass 603 and illuminates the area around the water outlet, providing a wide light range. The spray bar 506 is angled, lower at the front and higher at the back, ensuring complete water flow out. This also allows the hot water sprayed from the outlet to be aimed directly at the cleaning area when the spray bar 506 is extended, improving cleaning efficiency and effectiveness. The guide sleeve 503 is angled, allowing dirty water to flow into the toilet bowl along the angled guide sleeve 503, preventing splashing and ensuring complete drainage of dirty water from the nozzle. The UV lamp assembly 6 engages with the mounting groove 502 on the guide sleeve 503. The UV lamp assembly 6 can be designed as a block structure, making it less prone to deformation. The fixed position of the mounting groove 502 ensures that the position of the UV lamp assembly 6 will not shift, resulting in stable sterilization.

[0044] like Figure 10 As shown, the ultraviolet lamp assembly 6 includes a housing 601, a light-transmitting glass 603, and an integrated circuit board 602. The housing 601 has a mounting through hole, and both the light-transmitting glass 603 and the integrated circuit board 602 are installed in the mounting through hole. The integrated circuit board 602 is located above the light-transmitting glass 603, and the light-emitting part is located on the integrated circuit board 602 and faces the light-transmitting glass 603. The length of the light-transmitting glass 603 is greater than the length of the light-emitting part, and there is a gap between the light-emitting part and the light-transmitting glass 603. The top of the integrated circuit board 602 is sealed with an upper sealant 604, and the ribbon cable 6021 on the integrated circuit board 602 passes through the upper sealant 604. The light-transmitting glass 603 and the housing 601 are sealed with a lower sealant ring 605. The lower end of the housing 601 is provided with a baffle plate 606 protruding towards the spray bar 506. The baffle plate 606 is located on the front side of the light-transmitting glass 603. There is a second gap 607 between the baffle plate 606 and the spray bar 506. The height of the second gap 607 is less than the height of the water passage gap 8.

[0045] The UV lamp assembly 6 uses an upper sealant 604 and a lower sealant ring 605 to fix the positions of the housing 601, the light-transmitting glass 603, and the integrated circuit board 602, preventing the light-transmitting glass 603 or the integrated circuit board 602 from loosening or shifting during use, which would affect the UV lamp irradiation effect. At the same time, the upper sealant 604 seals the UV lamp assembly 6 to prevent water ingress and improve the service life of the UV lamp assembly 6. A waterproof plate is provided to prevent sewage splashing. There is a second gap 607 between the water baffle 606 and the spray bar 506, which allows sewage to flow out smoothly. The height of the second gap 607 is smaller than the height of the water passage gap 8, that is, the cross-sectional area of ​​the opening of the second gap 607 is small, so that the water flow can fill the water passage gap and stay in the water passage gap for a longer time for rinsing. The installation method of the ultraviolet lamp assembly 6 is as follows: the integrated circuit board 602 enters the mounting through hole through the opening at the top of the housing 601, and then sealant is filled on the top of the integrated circuit board 602. The ribbon cable 6021 passes through the sealant and extends out of the housing 601. After the sealant solidifies, it forms the upper sealant 604. The light-transmitting glass 603 enters the mounting through hole through the opening at the bottom of the housing 601. The sealant 604 is applied to the contact surface between the housing 601 and the light-transmitting glass 603. After the sealant solidifies, it forms the lower sealant ring 605.

[0046] like Figures 7 to 9 As shown, the UV lamp assembly 6, mounted on the nozzle assembly 5, forms a downward-facing UV irradiation area 608. The water outlets include a feminine wash outlet 505 and a posterior wash outlet 504 spaced apart. When the spray bar 506 is retracted, both the feminine wash outlet 505 and the posterior wash outlet 504 are located within the UV irradiation area 608 of the light-emitting unit, and both face the light-emitting unit. The spaced arrangement of the feminine wash outlet 505 and the posterior wash outlet 504 achieves zoned cleaning function, better meeting customer needs. Both are within the irradiation range of the UV lamp assembly 6, ensuring complete sterilization.

[0047] The smart toilet's washing functions include feminine wash and posterior wash. When the user selects the feminine wash function, the spray bar 506 is retracted, and hot water sprays upwards from the feminine wash outlet 505. The water flow first touches the front of the translucent glass 603. The restriction of the water passage gap 8 and the impact between water flows cause some water to be flushed backwards, rinsing the rear of the translucent glass 603. After impacting the translucent glass 603, the hot water bounces back to the area around the outlet, and the hot water reverses to fill the entire water passage gap 8. Wastewater flows downwards into the toilet bowl from the second gap 607. During this period, the posterior wash outlet 504 remains full of water. After the set time, the ultraviolet lamp assembly 6 and the area around the outlet are rinsed and pre-wetted. The feminine wash outlet 505 stops spraying water, and then the spray bar 506 is extended forward by the telescopic drive component, and the feminine wash... Hot water sprays from water outlet 505 to rinse the user. The feminine wash water outlet 505 stops spraying water, and then the spray bar 506 is driven by the telescopic drive to retract backward. The feminine wash water outlet 505 sprays hot water again to rinse the light-transmitting glass 603. After the hot water hits the light-transmitting glass 603, it bounces back to the area around the water outlet to rinse the area around the water outlet. Wastewater flows out from the second gap 607. During this period, the posterior wash water outlet 504 is kept full of water. After the set time is reached, the feminine wash water outlet 505 stops spraying water. Wait 3 to 10 seconds for the water to flow down and the light-emitting part of the ultraviolet lamp assembly 6 is lit. The ultraviolet light irradiates the area around the water outlet to form an ultraviolet irradiation area 608 for sterilization. After sterilization is completed, the ultraviolet lamp is turned off. After the user selects the bidet function, the spray bar 506 is retracted, and the bidet outlet 504 sprays hot water upwards. The water flow first touches the back of the translucent glass 603 and then flows forward. After hitting the translucent glass 603, the hot water bounces back to the area around the outlet. Wastewater flows downwards into the toilet bowl from the second gap 607. During this period, the bidet outlet 505 remains full of water. After the set time is reached, the ultraviolet lamp assembly 6 and the area around the outlet are rinsed and pre-wetted. The bidet outlet 504 stops spraying water, and then the spray bar 506 is extended forward by the telescopic drive, and the bidet outlet 504 sprays hot water to rinse the user. 504 stops spraying water, then the spray bar 506 is retracted backward by the telescopic drive component, and the posterior wash outlet 504 sprays hot water again to rinse the light-transmitting glass 603. The hot water bounces off the light-transmitting glass 603 and bounces back to the area around the outlet, rinsing the area around the outlet. Wastewater flows out from the second gap 607. During this period, the feminine wash outlet 505 remains full of water. After the set time is reached, the posterior wash outlet 504 stops spraying water. Wait 3 to 10 seconds for the water to slide off, and then turn on the light-emitting part of the ultraviolet lamp assembly 6. The ultraviolet light irradiates the area around the outlet to form an ultraviolet irradiation area 608 for sterilization. After sterilization is completed, the ultraviolet lamp is turned off.

[0048] Unless otherwise specified, the raw materials and equipment used in this invention are all commonly used in the field; unless otherwise specified, the methods used in this invention are all conventional methods in the field.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A method for sterilizing a nozzle in a smart toilet, the smart toilet comprising a water inlet assembly, a heating assembly, a nozzle assembly, and a UV lamp assembly, the nozzle assembly comprising a bracket, a spray bar retractably connected to the bracket, and a telescopic drive for extending and retracting the spray bar, the spray bar having a water outlet at its front, the UV lamp assembly being mounted on the bracket, and when the spray bar is in the retracted state, the water outlet and the light-emitting part of the UV lamp assembly facing each other, characterized in that... It also includes the following steps: Step 100: The user activates the washing function; Step 400: The spray bar is in the extended position, and hot water is sprayed from the outlet for rinsing; Step 500: The water outlet stops spraying water, and then the spray bar retracts. Step 800: The light-emitting part of the ultraviolet lamp assembly is turned on to perform sterilization; Step 900: The light-emitting part of the ultraviolet lamp assembly is turned off; Between step 100 and step 400, there are steps 200 and 300; in step 200, the spray bar is in the retracted state, and hot water is sprayed from the outlet to rinse the ultraviolet lamp assembly; in step 300, the water outlet stops spraying water, and then the spray bar extends. And / or, steps 600 and 700 are provided between steps 500 and 800; in step 600, the spray bar is in the retracted state, and hot water is sprayed from the outlet to rinse the ultraviolet lamp assembly; in step 700, the outlet stops spraying water.

2. The nozzle sterilization method for a smart toilet according to claim 1, characterized in that, In step 700, after the water outlet stops spraying water, you need to wait 3 to 10 seconds before proceeding to step 800.

3. The nozzle sterilization method for a smart toilet according to claim 1, characterized in that, The set temperature for the hot water sprayed in step 200 is the same as the set temperature for the hot water sprayed in step 400; or, the set temperature for the hot water sprayed in steps 200, 400 and 600 is the same.

4. A nozzle sterilization method for a smart toilet according to any one of claims 1 to 3, characterized in that, The light-emitting part is provided with a light-transmitting glass on the side near the water outlet. A water passage gap is provided between the part of the spray bar where the water outlet is located and the light-transmitting glass. The light-emitting part and the light-transmitting glass are located above the water outlet.

5. The nozzle sterilization method for a smart toilet according to claim 4, characterized in that, The spray bar is tilted with the front lower than the rear.

6. The nozzle sterilization method for a smart toilet according to claim 5, characterized in that, The front part of the bracket is provided with a guide sleeve for guiding the spray bar. The guide sleeve is inclined and the inclination direction is the same as that of the spray bar.

7. The nozzle sterilization method for a smart toilet according to claim 5, characterized in that, The height of the water passage gap is h, where 2mm ≤ h ≤ 4mm.

8. A method for sterilizing the nozzle of a smart toilet according to any one of claims 1 to 3, characterized in that, The water outlet includes a feminine wash outlet and a posterior wash outlet arranged at intervals. When the spray bar is in the retracted state, both the feminine wash outlet and the posterior wash outlet are located within the irradiation area of ​​the light-emitting part, and both the feminine wash outlet and the posterior wash outlet face the light-emitting part.

9. A nozzle sterilization method for a smart toilet according to any one of claims 1 to 3, characterized in that, The ultraviolet lamp assembly includes a housing, a light-transmitting glass, and an integrated circuit board. The housing has a mounting through hole, and both the light-transmitting glass and the integrated circuit board are installed in the mounting through hole. The integrated circuit board is located above the light-transmitting glass, and the light-emitting part is located on the integrated circuit board and faces the light-transmitting glass. The top of the integrated circuit board is sealed with an upper sealant, and the ribbon cable on the integrated circuit board passes through the upper sealant. The light-transmitting glass and the housing are sealed with a lower sealant ring.

10. A nozzle sterilization method for a smart toilet according to claim 9, characterized in that, The lower end of the housing is provided with a baffle plate protruding towards the spray bar. The baffle plate is located on the front side of the light-transmitting glass, and there is a second gap between the baffle plate and the spray bar.

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