Household appliance

Abstract

The invention relates to a household appliance. The household appliance comprises a box body; an inner cavity is formed in the box body; the spray head is arranged in the inner cavity; a containing groove is formed in the spray head, the spray head is provided with a leading-in pipe and an ejection pipe, a water inlet is formed in the leading-in pipe, and a water outlet is formed in the ejection pipe; a valve cavity is formed in the nozzle, a first valve port is formed in the inner end of the introduction pipe, and a second valve port is formed in the inner end of the ejection pipe; the valve body is rotatably arranged in the valve cavity; when the valve body rotates, the valve body can open and close the first valve port and control the opening degree of the first valve port, or open and close the second valve port and control the opening degree of the second valve port. The opening degree of the first valve port or the second valve port is adjusted through rotation of the valve body, the water inlet amount of clear water and the pressure of part of water entering the containing groove can be adjusted, therefore, the proportion of the water inlet amount and the detergent can be intelligently adjusted, the detergent and water are saved, the good cleaning effect is finally achieved, and cost is reduced and energy is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a household appliance. Background Art

[0002] With the development of science and technology, home appliances such as ovens and dishwashers are becoming more and more popular. As living standards improve, people's performance requirements for home appliances such as ovens and dishwashers are also getting higher and higher.

[0003] At present, in some related household appliances, the cleaning methods for oil stains on the inner wall of the cavity of household appliances usually include high-temperature cleaning and steam cleaning. Among them, steam cleaning is an auxiliary cleaning and can only clean light oil stains; high-temperature cleaning requires strong sealing, but the maximum temperature resistance of sealing materials in household appliances such as ovens and dishwashers is only 280°C, and the temperature of the entire cavity of high-temperature self-cleaning is required to be around 450°C. Therefore, high-temperature cleaning is usually not used, resulting in the difficulty of cleaning the inner wall of the cavity of household appliances. There are also some solutions that use water cleaning, with a nozzle set on the inner wall of the cavity, but the nozzle can only spray the pre-mixed detergent into the inner cavity, and cannot adjust the ratio of detergent and water. It needs to consume more detergent and water, resulting in high costs and waste of resources. Summary of the invention

[0004] The object of the present invention is to provide a household appliance to optimize the nozzle structure of the household appliance in the related art, adjust the water intake, save detergent and cleaning water, reduce costs and save energy.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, the present invention provides a household appliance, which comprises: a housing, which forms an outer shell of the household appliance; an inner cavity is formed in the housing; a nozzle, which is arranged in the inner cavity; a storage tank for storing detergent is formed in the nozzle, and an introduction pipe and an emission pipe are provided on the nozzle, a water inlet connected to the storage tank is opened on the inner wall of the introduction pipe, and a water outlet connected to the storage tank is opened on the inner wall of the emission pipe; a valve cavity isolated from the storage tank is also provided in the nozzle, a first valve port connected to the valve cavity is formed at one end of the introduction pipe, and a second valve port connected to the valve cavity is formed at one end of the emission pipe; the other end of the introduction pipe is used to connect to a water source, and the other end of the emission pipe is connected to the inner cavity; a valve body, which is rotatably arranged in the valve cavity; when the valve body rotates, the valve body can open and close the first valve port and control the opening of the first valve port, or open and close the second valve port and control the opening of the second valve port.

[0007] According to another aspect of the present invention, the present invention provides a household appliance, which comprises: a housing, which forms an outer shell of the household appliance; an inner cavity is formed in the housing; a nozzle, which is arranged in the inner cavity; an inlet pipe and an ejection pipe are provided on the nozzle, a receiving groove for storing detergent is provided in the nozzle, and the inlet pipe and the ejection pipe are respectively connected to the receiving groove; a clean water box; a steam generator, the inlet end of the steam generator is connected to the clean water box; a first pipeline, one end of which is connected to the outlet end of the steam generator, and the other end is connected to the inlet pipe of the nozzle; a second pipeline, one end of which is connected to the outlet end of the steam generator, and the other end is connected to the inner cavity; wherein the water in the clean water box can enter the steam generator, and the water is introduced into the nozzle through the first pipeline, enters the receiving groove through the inlet pipe, and is sprayed into the inner cavity through the ejection pipe after carrying the detergent; the water in the clean water box can also be heated by the steam generator to form steam, and the steam is introduced into the inner cavity through the second pipeline.

[0008] The embodiments of the present invention have the following advantages and positive effects:

[0009] In the household appliance of the embodiment of the present invention, a nozzle is arranged in the inner cavity of the box, and a valve body is arranged in the nozzle, wherein the nozzle is provided with an inlet pipe and an ejection pipe, and a mutually isolated receiving groove and a valve cavity are arranged in the nozzle, and detergent is stored in the receiving groove, and the valve body is rotatably arranged in the valve cavity. When the valve body rotates and closes the first valve port or the second valve port, the water in the inlet pipe can only enter the receiving groove from the water inlet, and the detergent in the receiving groove flows into the ejection pipe from the water outlet, and then sprays into the inner cavity through the outer end of the ejection pipe. When the first valve port and the second valve port are opened by rotating the valve body, part of the water in the inlet pipe can directly enter the ejection pipe through the first valve port, the valve cavity, and the second valve port, and then directly sprays into the inner cavity through the outer end of the ejection pipe; another part of the water in the inlet pipe still enters the receiving groove from the water inlet, and the detergent in the receiving groove flows into the ejection pipe from the water outlet, and then sprays into the inner cavity through the outer end of the ejection pipe. By rotating the valve body to adjust the opening of the first valve port or the second valve port, the amount of clean water entering the tank and the pressure of the water entering the tank can be adjusted. Therefore, the ratio of the water intake and the detergent can be adjusted intelligently, saving detergent and water, and ultimately achieving a better cleaning effect, reducing costs, and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a household appliance according to an embodiment of the present invention.

[0011] Figure 2 yes Figure 1 Schematic diagram of some of the internal structures.

[0012] Figure 3yes Figure 2 Schematic diagram of the structure from another perspective.

[0013] Figure 4 yes Figure 3 Rear view of.

[0014] Figure 5 yes Figure 4 AA section view.

[0015] Figure 6 yes Figure 5 Schematic diagram of the structure of the nozzle and drive unit.

[0016] Figure 7 yes Figure 6 Front view of .

[0017] Figure 8 yes Figure 6 Schematic diagram of the structure of the middle nozzle.

[0018] Fig. 9 yes Figure 8 A decomposition diagram of .

[0019] Fig.10 yes Fig. 9 Schematic diagram of the structure of the valve body.

[0020] Fig.11 yes Figure 8 Front view of .

[0021] Fig.12 yes Fig.11 Side view of.

[0022] Fig.13 yes Fig.12 Middle BB section view.

[0023] Fig.14 yes Fig.11 CC section view.

[0024] Fig.15 yes Fig.11 Middle DD section view.

[0025] Fig.16 yes Fig.15 Schematic diagram of the structure in the fully closed state.

[0026] Fig.17 yes Fig.15 Schematic diagram of the structure in the fully open state.

[0027] Fig.18 yes Fig.13 Schematic diagram of the structure in the fully open state.

[0028] Fig.19 yes Fig.11 EE section view.

[0029] The reference numerals are as follows: 1. box body; 11. box door; 12. door frame; 121. door seal; 13. heat dissipation duct; 131. heat dissipation fan; 132. air guide cover; 14. support top plate; 15. support back plate; 16. drive unit; 17. fixed bracket; 2. liner; 20. inner cavity; 21. heating device; 22. heating fan; 3. nozzle; 31. accommodating portion; 310. accommodating groove; 32. cover body; 320. valve cavity; 321. partition; 322. isolation cavity; 33, introduction pipe; 331, water inlet; 332, first valve port; 34, injection pipe; 341, water outlet; 342, second valve port; 35, valve body; 351, stopper; 352, valve plate; 353, first through hole; 354, second through hole; 36, rotating part; 4, clean water box; 41, water inlet pipe; 42, water pump; 5, steam generator; 51, first pipeline; 52, second pipeline; 53, three-way pipe; 54, first switch valve; 55, second switch valve. DETAILED DESCRIPTION

[0030] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] At present, in some related household appliances, the cleaning methods for oil stains on the inner wall of the cavity of household appliances usually include high-temperature cleaning and steam cleaning. Among them, steam cleaning is an auxiliary cleaning and can only clean light oil stains; high-temperature cleaning requires strong sealing, but the maximum temperature resistance of sealing materials in household appliances such as ovens and dishwashers is only 280°C, and the temperature of the entire cavity of high-temperature self-cleaning is required to be around 450°C. Therefore, high-temperature cleaning is usually not used, resulting in the difficulty of cleaning the inner wall of the cavity of household appliances. There are also some solutions that use water cleaning, with a nozzle set on the inner wall of the cavity, but the nozzle can only spray the pre-mixed detergent into the inner cavity, and cannot adjust the ratio of detergent and water. It needs to consume more detergent and water, resulting in high costs and waste of resources.

[0035] Figure 1 It is a structural schematic diagram of a household appliance according to an embodiment of the present invention. Figure 2 yes Figure 1 Schematic diagram of some of the internal structures.

[0036] See also Figure 1 to Figure 2 As shown, the household appliance provided by the embodiment of the present invention mainly comprises a box body 1 and a nozzle 3 structure arranged in the box body 1. The various structures of the household appliance are described below by taking an oven as an example.

[0037] The box body 1 is configured as a housing of a household appliance, and the box body 1 is a rectangular hollow structure. It should be noted that in other embodiments, the box body 1 may also adopt a housing structure of other shapes, and the specific shape of the box body 1 may be adjusted as required, and is not limited here.

[0038] The box body 1 is provided with an inner cavity 20, which can be used for high-temperature cooking of food by steaming, baking, etc. It should be noted that in other embodiments, the inner cavity 20 can be used as other functional cavities. For example, when the household appliance is a dishwasher, the inner cavity 20 can be used to wash tableware such as bowls and plates. When the household appliance is a disinfection cabinet, the inner cavity 20 can be used to disinfect tableware such as bowls and plates.

[0039] See also Figure 2As shown, an inner liner 2 is disposed in the box body 1, and an inner cavity 20 is formed in the inner liner 2. The front end of the inner liner 2 has an opening, and the front end opening of the inner liner 2 communicates with the interior of the inner cavity 20.

[0040] In some embodiments, an opening is provided on the front side wall of the box body 1, and the front side opening of the box body 1 is arranged opposite to the front end opening of the inner cavity 20 of the inner pot 2. Therefore, the food to be cooked can be put into the inner cavity 20 through the front side opening of the box body 1 for high temperature cooking. At the same time, after cooking, the food can be taken out of the inner cavity 20 through the front side opening of the box body 1.

[0041] See also Figure 1 As shown, in some embodiments, a door 11 is provided on the front side of the box body 1. The door 11 is movably arranged on the front side wall of the box body 1, and the door 11 can open and close the front opening of the box body 1, and then open and close the inner cavity 20.

[0042] See also Figure 1 and Figure 2 As shown, in some embodiments, a door frame 12 is provided on the front side wall of the box body 1, and the box door 11 is rotatably connected to the front side of the door frame 12. The front opening of the box body 1 is opened at the center of the door frame 12, that is, the door frame 12 is arranged around the periphery of the front opening of the box body 1. The front opening of the inner cavity 20 in the inner tank 2 is directly opposite to the center of the door frame 12, and the door frame 12 is arranged around the periphery of the front end opening of the inner tank 2. When the box door 11 is closed, the periphery edge of the box door 11 fits with the front side of the door frame 12, sealing the gap between the box door 11 and the door frame 12, thereby being able to close the inner cavity 20.

[0043] In some embodiments, a door seal 121 is provided around the front opening of the box body 1, and the door seal 121 is provided in the gap between the side of the inner liner 2 and the door frame 12. When the box door 11 is closed, the box door 11 can abut against the door seal 121 to seal the gap between the door frame 12 and the box door 11, thereby sealing the front opening of the box body 1, that is, sealing the front opening of the inner cavity 20.

[0044] Figure 3 yes Figure 2 Schematic diagram of the structure from another perspective. Figure 4 yes Figure 3 Rear view of. Figure 5 yes Figure 4 AA section view.

[0045] See also Figures 3 to 5As shown, in some embodiments, a heat dissipation duct 13 is provided in the box body 1, and the heat dissipation duct 13 is provided outside the inner liner 2. Specifically, the heat dissipation duct 13 can be provided in a cavity (not shown in the figure) formed between the inner liner 2 and the box body 1. The air inlet end of the heat dissipation duct 13 is connected to the cavity, and the air outlet end of the heat dissipation duct 13 is connected to the outside of the box body 1. At the same time, a heat dissipation fan 131 is provided in the heat dissipation duct 13, and the heat dissipation fan 131 is used to provide wind power, extract air in the cavity, and discharge the heat in the cavity to the outside of the box through the heat dissipation duct 13, so as to realize the heat dissipation function inside the box body 1.

[0046] In some embodiments, the heat dissipation duct 13 is disposed above the top of the inner liner 2, and the air outlet of the heat dissipation duct 13 faces the front side of the box body 1 and is connected to the front space of the box body 1. Therefore, the heat dissipation duct 13 can exhaust and dissipate heat from the front side of the box body 1.

[0047] In some embodiments, the heat dissipation fan 131 is disposed at the air inlet end of the heat dissipation air duct 13. The heat dissipation fan 131 is a cross-flow fan to increase the wind force at the air inlet end of the heat dissipation air duct 13, improve the efficiency of extracting air in the cavity, and further improve the heat dissipation efficiency in the cavity.

[0048] See also Figures 2 to 5 As shown, in some embodiments, a supporting top plate 14 is provided in the box body 1, and the supporting top plate 14 is arranged above the inner liner 2 at intervals. An air guide cover 132 is provided on the top surface of the supporting top plate 14, and the air guide cover 132 and the supporting top plate 14 enclose a heat dissipation duct 13. At this time, the rear end of the air guide cover 132 serves as the air inlet end of the heat dissipation duct 13, and the heat dissipation fan 131 is provided at the rear end of the air guide cover 132. The front end of the air guide cover 132 faces the front side of the box body 1 and serves as the air outlet end of the heat dissipation duct 13.

[0049] In some embodiments, a support back plate 15 is further provided in the box body 1, and the support back plate 15 is provided on the back side of the inner liner 2. The bottom of the support back plate 15 is supported on the bottom plate of the box body 1, and the top of the support back plate 15 is connected to the rear end of the support top plate 14. The front end of the support top plate 14 is fixed on the front wall of the box body 1, so that the support top plate 14 can be stably fixed on the upper side of the inner liner 2.

[0050] In some embodiments, a heating device 21 is provided in the box body 1 , and the heating device 21 is provided on the rear side wall of the inner tank 2 . The heating device 21 is used to heat the air in the inner cavity 20 , thereby increasing the temperature inside the inner cavity 20 .

[0051] In some embodiments, a heating fan 22 is provided at the rear side wall of the inner cavity 20, and the heating fan 22 is used to generate wind force to transport the hot air generated by the heating device 21 to other areas of the inner cavity 20, thereby allowing the interior of the inner cavity 20 to be evenly heated.

[0052] It should be noted that, in some other embodiments, the heating device 21 may also be disposed on the top wall of the inner cavity 20 to heat the interior of the inner cavity 20 from the top area of ​​the inner cavity 20 .

[0053] Figure 6 yes Figure 5 Schematic diagram of the structure of the middle nozzle 3 and the driving unit 16. Figure 7 yes Figure 6 Front view of . Figure 8 yes Figure 6 Schematic diagram of the structure of the middle nozzle 3. Fig. 9 yes Figure 8 A decomposition diagram of .

[0054] See also Figures 2 to 9 As shown, the nozzle 3 is arranged in the inner cavity 20, and a receiving tank 310 for storing detergent is provided in the nozzle 3, and the receiving tank 310 can store solid or liquid detergent. The nozzle 3 has an inlet pipe 33 and an ejection pipe 34, and the inner ends of the inlet pipe 33 and the ejection pipe 34 are respectively connected to the receiving tank 310. The outer end of the inlet pipe 33 is used for external water source, and the outer end of the ejection pipe 34 is used for connecting to the inner cavity 20. Therefore, when the external water source enters the nozzle 3 through the inlet pipe 33, the water can enter the receiving tank 310, carry the detergent in the receiving tank 310, and then spray the detergent and water mixed liquid into the inner cavity 20 through the ejection pipe 34, so as to realize the cleaning function of the inner wall of the inner cavity 20.

[0055] See also Figures 2 to 5 As shown, in some embodiments, a clean water box 4 and a steam generator 5 are provided in the housing 1. The clean water box 4 is provided in the housing 1, and the clean water box 4 is fixed on the top surface of the supporting top plate 14. The clean water box 4 is connected to the inlet end of the steam generator 5 through the water inlet pipe 41, and the outlet end of the steam generator 5 is provided with a first pipeline 51. The steam generator 5 is fixed on the back side of the supporting back plate 15. One end of the first pipeline 51 is connected to the outlet end of the steam generator 5, and the other end of the first pipeline 51 extends into the inner cavity 20 and is connected to the introduction pipe 33 of the nozzle 3. Therefore, the water in the clean water box 4 can enter the steam generator 5 to be heated to form hot water, and the hot water can be introduced into the nozzle 3 through the first pipeline 51 and the introduction pipe 33, and the steam carries the detergent in the accommodating tank 310, and is sprayed to the inner wall of the inner cavity 20 through the ejection pipe 34, thereby improving the cleaning effect of the inner wall of the inner cavity 20.

[0056] It should be noted that by controlling the temperature of the steam generator 5 below the preset temperature threshold, it can be ensured that the clean water passing through it will not turn into steam, but can be heated to a certain temperature to form hot water, and then cooperate with the detergent in the nozzle 3 to improve the cleaning effect on the inner wall of the inner cavity 20.

[0057] It should also be noted that, in some other embodiments, the steam generator 5 may not be arranged between the clean water box 4 and the first pipe 51, or the steam generator 5 may not work, and only the water in the clean water box 4 can pass through, so that the water in the clean water box 4 directly enters the nozzle 3 through the first pipe 51, and carries the detergent in the nozzle 3 to be sprayed into the inner cavity 20, which can also realize the cleaning function of the inner wall of the inner cavity 20.

[0058] See also Figures 2 to 5 As shown, in some embodiments, a water pump 42 is provided between the clean water box 4 and the steam generator 5, and the water pump 42 is provided on the water inlet pipe 41. The water pump 42 is fixed on the back side of the support back plate 15. The water pump 42 is used to pump the water in the clean water box 4 into the steam generator 5, start the steam generator 5 to work, and the steam generator 5 heats the water to form hot water, and then transports the hot water into the nozzle 3 through the first pipeline 51, and carries the detergent in the nozzle 3 to spray into the inner cavity 20, so as to further improve the cleaning effect on the inner wall of the inner cavity 20.

[0059] See also Figure 5 As shown, in some embodiments, the end of the first pipeline 51 extending into the inner cavity 20 is detachably connected to the inlet pipe 33 of the nozzle 3. Therefore, when it is not necessary to clean the inner wall of the inner cavity 20 with water, the inlet pipe 33 of the nozzle 3 can be separated from the end of the first pipeline 51 extending into the inner cavity 20, so that the nozzle 3 can be taken out of the inner cavity 20, so that the nozzle 3 will not affect the high-temperature cooking of the food in the inner cavity 20. At this time, the steam can also be heated by the steam generator 5 to form steam, and the formed steam can be transported into the inner cavity 20 through the first pipeline 51 to assist the heating device 21 in the inner cavity 20 to perform high-temperature cooking on the food.

[0060] See also Figures 3 to 5 As shown, in some embodiments, the outlet end of the steam generator 5 is further provided with a second pipeline 52. One end of the second pipeline 52 is connected to the outlet end of the steam generator 5, and the other end of the second pipeline 52 extends into the inner cavity 20. Therefore, the water in the clean water box 4 can enter the steam generator 5 to form steam, and the steam can be directly introduced into the inner cavity 20 through the second pipeline 52 to assist the heating device 21 in the inner cavity 20 to perform high-temperature cooking on the food.

[0061] In some embodiments, the outlet of the steam generator 5 is provided with a three-way pipe 53, the outlet of the steam generator 5 is connected to the first pipe opening of the three-way pipe 53, and the second pipe opening and the third pipe opening of the three-way pipe 53 are respectively connected to the first pipeline 51 and the second pipeline 52. Therefore, the outlet of the steam generator 5 can be respectively connected to one end of the first pipeline 51 and the second pipeline 52. At the same time, the first pipeline 51 is provided with a first switch valve 54, the first switch valve 54 is used to control the on-off of the first pipeline 51, and the second pipeline 52 is provided with a second switch valve 55, the second switch valve 55 is used to control the on-off of the second pipeline 52, and both the first switch valve 54 and the second switch valve 55 can be electromagnetic valves. Therefore, when it is necessary to clean the inner wall of the inner cavity 20 with water, the second pipeline 52 can be closed through the second switch valve 55, so that the water in the clean water box 4 can enter the steam generator 5 to be heated to form hot water, and the hot water is transported into the nozzle 3 through the first pipeline 51, and the detergent in the nozzle 3 is sprayed onto the inner wall of the inner cavity 20, thereby realizing the water cleaning function of the inner wall of the inner cavity 20. When it is necessary to steam heat the food in the inner cavity 20, the first pipeline 51 can be closed through the first switch valve 54, so that the water in the clean water box 4 can enter the steam generator 5 to be heated to form steam, and the steam is transported into the inner cavity 20 through the first pipeline 51, assisting the heating device 21 in the inner cavity 20 to perform high-temperature cooking on the food.

[0062] It should be noted that, in other embodiments, a three-way valve may also be provided at the outlet of the steam generator 5, and the three-way valve may replace the three-way pipe 53, the first switch valve 54, and the second switch valve 55. The three-way valve has an inlet end and two outlet ends, the inlet end of the three-way valve is connected to the outlet end of the steam generator 5, and the two outlet ends of the three-way valve are respectively connected to the first pipeline 51 and the second pipeline 52. Therefore, the outlet end of the steam generator 5 can be directly controlled by the three-way valve to be connected only to the first pipeline 51, or only to the second pipeline 52.

[0063] Fig.10 yes Fig. 9 A schematic structural diagram of the middle valve body 35. Fig.11 yes Figure 8 Front view of . Fig.12 yes Fig.11 Side view of. Fig.13 yes Fig.12 Middle BB section view.

[0064] See also Figures 5 to 13As shown, in some embodiments, the introduction pipe 33 and the ejection pipe 34 are respectively formed on the outer wall of the nozzle 3, and a water inlet 331 connected to the receiving tank 310 is provided on the inner wall of the introduction pipe 33, and a water outlet 341 connected to the receiving tank 310 is provided on the inner wall of the ejection pipe 34. Therefore, the water introduced into the introduction pipe 33 can enter the receiving tank 310 through the water inlet 331, and after the water first fills the entire receiving tank 310, the water overflowing from the receiving tank 310 can carry the detergent in the receiving tank 310 into the ejection pipe 34 through the water outlet 341, and then sprayed to the inner wall of the inner cavity 20 through the ejection pipe 34, and the inner wall of the inner cavity 20 is cleaned with water.

[0065] Fig.14 yes Fig.11 CC section view. Fig.15 yes Fig.11 Middle DD section view.

[0066] See also Figures 11 to 15 As shown, in some embodiments, a valve cavity 320 isolated from the accommodating groove 310 is further provided in the nozzle 3, and a first valve port 332 communicating with the valve cavity 320 is formed at the inner end of the introduction tube 33. A second valve port 342 communicating with the valve cavity 320 is formed at the inner end of the ejection tube 34, and the first valve port 332 and the second valve port 342 are both provided on the peripheral side wall of the valve cavity 320, and the first valve port 332 and the second valve port 342 are arranged at intervals in the circumferential direction. At the same time, a valve body 35 is provided in the nozzle 3, and the valve body 35 is rotatably provided in the valve cavity 320.

[0067] Fig.16 yes Fig.15 Schematic diagram of the structure in the fully open state.

[0068] See also Fig.15 and Fig.16 As shown, in some embodiments, when the valve body 35 rotates in the valve cavity 320, the valve body 35 is used to open or close the first valve port 332. When the valve body 35 rotates to the first valve port 332, the valve body 35 can completely block the first valve port 332, such as Fig.16 As shown in the state, the inlet pipe 33 is isolated from the valve cavity 320, and the water introduced into the inlet pipe 33 can only enter the containing tank 310 through the water inlet 331, and carry the detergent in the containing tank 310 into the ejection pipe 34 through the water outlet 341, and then enter the inner wall of the inner cavity 20 through the ejection, so as to clean the inner wall of the inner cavity 20 with water.

[0069] Fig.17 yes Fig.15 Schematic diagram of the structure in the fully open state. Fig.18 yes Fig.13 Schematic diagram of the structure in the fully open state.

[0070] See also Fig.17 and Fig.18 As shown in FIG. 1 , when the valve body 35 rotates to separate from the first valve port 332, the first valve port 332 is fully opened. Fig.17 In the state shown, the second valve port 342 is also opened, so that the introduction pipe 33 can be connected with the valve cavity 320 and the ejection pipe 34 in sequence. Therefore, part of the water introduced into the introduction pipe 33 can be introduced into the ejection pipe 34 through the first valve port 332, the valve cavity 320, and the second valve port 342 in sequence, and sprayed into the inner cavity 20 through the outer end of the ejection pipe 34, so as to clean the inner wall of the inner cavity 20 with water. Another part of the water can still enter the containing tank 310 through the water inlet 331, and carry the detergent in the containing tank 310 into the ejection pipe 34 through the water outlet 341, and then sprayed into the inner wall of the inner cavity 20 through the ejection pipe 34, so as to clean the inner wall of the inner cavity 20 with water.

[0071] See also Fig.15 and Fig.17 As shown, by controlling the rotation of the valve body 35, the valve body 35 and the first valve port 332 are arranged in a staggered manner, so that the valve body 35 can control the opening of the first valve port 332, and then control the water output at the first valve port 332, adjust the ratio of the water volume at the first valve port 332 and the water inlet 331, and adjust the water pressure entering the accommodating tank 310 at the water inlet 331, and then adjust the ratio of the amount of clean water to the detergent, so that the mixture of water and detergent sprayed by the ejection tube 34 onto the inner wall of the inner cavity 20 can be controlled within a certain proportion range, thereby realizing intelligent adjustment of the water inlet, saving detergent and water, and ultimately achieving a better cleaning effect, and achieving the purpose of reducing costs and saving energy.

[0072] See also Figures 13 to 18 As shown, in some other embodiments, when the valve body 35 rotates in the valve cavity 320, the valve body 35 can also be used to open or close the second valve port 342 and control the opening of the second valve port 342, thereby controlling the water output at the second valve port 342, adjusting the ratio of the water volume at the second valve port 342 and the water inlet 331, and thereby adjusting the ratio of the amount of clean water to the detergent, so that the mixture of water and detergent sprayed by the ejection tube 34 to the inner wall of the inner cavity 20 can be controlled within a certain ratio range, thereby also realizing intelligent adjustment of the water inlet, saving detergent and water, and ultimately achieving a better cleaning effect, and realizing the purpose of reducing costs and saving energy. Please refer to Figures 10 to 18As shown, in some embodiments, a stopper 351 is convexly provided on the outer wall of the valve body 35. When the valve body 35 rotates to the point where the stopper 351 and the first valve port 332 are arranged opposite to each other, the stopper 351 can completely block the first valve port 332. When the valve body 35 rotates to the point where the stopper 351 and the first valve port 332 are separated, the stopper 351 can completely open the first valve port 332. When the valve body 35 rotates to the point where the stopper 351 and the first valve port 332 are arranged in a misaligned manner, the stopper 351 can partially open the first valve port 332. And by controlling the misaligned area between the stopper 351 and the first valve port 332, the opening of the first valve port 332 can be controlled, thereby adjusting the ratio between the amount of water flowing from the first valve port 332 to the ejection pipe 34 and the amount of water flowing from the water inlet 331 through the accommodating groove 310 and then flowing to the ejection pipe 34.

[0073] It should be noted that, in other embodiments, when the valve body 35 rotates to the second valve port 342, the stopper 351 can also completely block the second valve port 342, completely open the second valve port 342, or partially open the second valve port 342. Therefore, the valve body 35 can also open and close the second valve port 342 through the stopper 351 and control the opening degree of the second valve port 342.

[0074] See also Figures 8 to 14 As shown, in some embodiments, the nozzle 3 includes a receiving portion 31 and a cover body 32. The top of the receiving portion 31 is open, and the receiving groove 310 is formed in the receiving portion 31. The cover body 32 is detachably covered on the top opening of the receiving portion 31, thereby enclosing the receiving groove 310 inside the nozzle 3. At the same time, the inlet pipe 33 and the ejection pipe 34 are convexly arranged on the outer wall of the cover body 32, and the inlet pipe 33 and the ejection pipe 34 are arranged at intervals in the circumferential direction. The valve cavity 320 is formed in the cover body 32 and is arranged at the axis of the cover body 32. The inlet pipe 33 and the ejection pipe 34 are respectively arranged on opposite sides of the valve cavity 320, and the first valve port 332 and the second valve port 342 are arranged on the circumferential side walls of the valve cavity 320 on opposite sides. The valve body 35 is rotatably disposed in the cover body 32 , one end of the valve body 35 extends into the valve cavity 320 , and the other end of the valve body 35 is exposed outside the valve cavity 320 , so as to control the rotation of the valve body 35 in the valve cavity 320 .

[0075] Therefore, the receiving portion 31 can be removed from the cover 32, and then the detergent can be put into the receiving groove 310, and then the receiving portion 31 and the cover 32 can be assembled into one. At the same time, during the cleaning process, if the detergent is used up or insufficient, the cover 32 can be kept in the inner cavity 20, the introduction tube 33 can be kept connected to the first pipeline 51, the receiving portion 31 can be disassembled separately, and after the detergent is replenished, the receiving portion 31 and the cover 32 can be assembled into one again, thereby improving the convenience of use for users.

[0076] In some embodiments, an internal thread is provided on the inner wall of the bottom end of the cover body 32, and an external thread is provided on the outer wall of the top end of the accommodating portion 31. The internal thread of the cover body 32 is adapted to the external thread of the accommodating portion 31, so that the cover body 32 can be detachably threadedly mounted on the top end of the accommodating portion 31.

[0077] It should be noted that, in other embodiments, the bottom end of the cover body 32 may also be provided with an external thread, and the top end of the accommodating portion 31 may be provided with an internal thread, so that the accommodating portion 31 can be detachably threadedly sleeved on the bottom end of the cover body 32. In other embodiments, the bottom end of the cover body 32 and the top end of the accommodating portion 31 may also be pluggably sleeved on each other as a whole.

[0078] See also Figures 9 to 14 As shown, in some embodiments, the valve cavity 320 is arranged to extend up and down along the axis of the nozzle 3, and the bottom end of the valve cavity 320 is connected to the receiving groove 310. At the same time, a valve plate 352 is convexly provided on the outer peripheral wall of the bottom end of the valve body 35, and the valve plate 352 is arranged in an annular shape on the outer peripheral wall of the bottom end of the valve body 35. The valve plate 352 is rotatably attached to the bottom port of the valve cavity 320 and closes the bottom port of the valve cavity 320. Therefore, when the valve body 35 rotates in the valve cavity 320, the valve plate 352 can rotate relatively at the bottom port of the valve cavity 320 and keep the bottom port of the valve cavity 320 closed, so that the valve cavity 320 and the receiving groove 310 can be kept isolated from each other.

[0079] Fig.19 yes Fig.11 EE section view.

[0080] See also Figures 10 to 19 As shown, in some embodiments, the size of the valve plate 352 is larger than the size of the notch of the receiving groove 310. When the cover body 32 is installed on the top of the receiving portion 31, the valve plate 352 is sealed and covers the notch of the receiving groove 310. When the valve body 35 rotates in the valve cavity 320, the valve plate 352 can rotate relatively at the bottom end of the valve cavity 320. At the same time, the valve plate 352 is provided with a first through hole 353 and a second through hole 354 arranged at intervals. The water inlet 331 on the inner wall of the introduction pipe 33 can be connected to the receiving groove 310 through the first through hole 353, and the water outlet 341 on the inner wall of the ejection pipe 34 can be connected to the receiving groove 310 through the second through hole 354. Therefore, the water introduced into the introduction pipe 33 can enter the containing tank 310 through the water inlet 331 and the first through hole 353, and carry the detergent in the containing tank 310 into the ejection tube 34 through the second through hole 354 and the water outlet 341 in sequence, and then be sprayed onto the inner wall of the inner cavity 20 through the ejection tube 34.

[0081] See also Figures 11 to 19As shown, in some embodiments, a partition 321 is provided in the cover body 32, and the partition 321 and the valve plate 352 are arranged in an upper and lower interval, and an isolation chamber 322 is formed between the partition 321 and the valve plate 352. The water inlet 331 on the inner wall of the introduction pipe 33 and the water outlet 341 on the inner wall of the ejection pipe 34 are respectively connected to the isolation chamber 322, and at the same time, the isolation chamber 322 is connected to the accommodating groove 310 through the first through hole 353 and the second through hole 354. Therefore, the water introduced into the introduction pipe 33 can be introduced into the isolation chamber 322 through the water inlet 331. After the water enters the isolation chamber 322, part of the water is directly introduced into the ejection pipe 34 through the water outlet 341, and the other part of the water can enter the accommodating groove 310 through the first through hole 353, and return to the isolation chamber 322 from the second through hole 354 after carrying detergent, and is introduced into the ejection pipe 34 through the water outlet 341, and then sprayed to the inner wall of the inner cavity 20 through the ejection pipe 34.

[0082] It should be noted that after the water entering the accommodating groove 310 is mixed with the detergent, foam can be generated when it returns to the isolation chamber 322 through the second through hole 354, that is, the cleaning liquid with foam returns to the isolation chamber 322 through the second through hole 354, and is then introduced into the injection tube 34 through the water outlet 341, and then sprayed onto the inner wall of the inner cavity 20 through the injection tube 34, so that the inner cavity 20 can be filled with cleaning foam, thereby improving the cleaning effect on the inner wall of the inner cavity 20.

[0083] See also Figures 10 to 19 As shown, in some embodiments, the stopper 351 is convexly disposed on the side of the valve body 35 facing the first through hole 353, that is, the stopper 351 is convexly disposed on the side of the valve body 35 away from the second through hole 354. At the same time, when the valve body 35 drives the stopper 351 to rotate, the valve plate 352 can rotate synchronously with the stopper 351 and the valve body 35.

[0084] When the valve body 35 rotates and the stopper 351 completely blocks the first valve port 332, Fig.16 In the state shown, the first valve port 332 and the valve cavity 320 are in a fully closed state, the water inlet 331 can be arranged vertically opposite to the first through hole 353, and the water outlet 341 can be arranged vertically opposite to the second through hole 354. Therefore, the water introduced into the introduction pipe 33 can only be introduced into the isolation cavity 322 through the water inlet 331, and the water introduced into the isolation cavity 322 can partially enter the containing groove 310 through the first through hole 353. The water pressure at the water inlet 331 and the first through hole 353 is relatively large, and the cleaning liquid with a large amount of foam is returned to the isolation cavity 322 through the second through hole 354, and then introduced into the ejection tube 34 through the water outlet 341, and then sprayed to the inner wall of the inner cavity 20 through the ejection tube 34, so that the inner cavity 20 can be filled with cleaning foam, thereby improving the cleaning effect on the inner wall of the inner cavity 20.

[0085] When the valve body 35 rotates and the stopper 351 fully opens the first valve port 332, Fig.17 In the state shown, the first valve port 332, the second valve port 342 and the valve cavity 320 are in a fully closed state, the first through hole 353 is away from the water inlet 331, and the second through hole 354 is away from the water outlet 341. And because the diameter of the first valve port 332 is larger than the diameter of the water inlet 331, the diameter of the second valve port 342 is larger than the diameter of the water outlet 341. Therefore, most of the clean water introduced into the introduction pipe 33 is introduced into the ejection pipe 34 through the first valve port 332, the valve cavity 320 and the second valve port 342; a small amount of clean water in the introduction pipe 33 is introduced into the isolation cavity 322 through the water inlet 331, and the first through hole 353 is far away from the water inlet 331, and the second through hole 354 is far away from the water outlet 341, so most of the water introduced into the isolation cavity 322 is directly introduced into the ejection pipe 34 through the water outlet 341; only a small amount of water in the isolation cavity 322 can enter the accommodating groove 310 through the first through hole 353, and the cleaning liquid with foam is returned to the isolation cavity 322 through the second through hole 354, and then introduced into the ejection pipe 34 through the water outlet 341, and then sprayed onto the inner wall of the inner cavity 20 through the ejection pipe 34, so the water entering the inner cavity 20 is a mixture of cleaning liquid and clean water, and the proportion of clean water is higher.

[0086] When the valve body 35 rotates and the stopper 351 partially opens the first valve port 332, Fig.15 In the state shown, as the opening of the first valve port 332 increases, the amount of clean water flowing through the first valve port 332, the valve cavity 320 and the second valve port 342 increases, and the proportion of clean water entering the inner cavity 20 increases. Correspondingly, as the opening of the first valve port 332 decreases, the amount of water and the water pressure flowing through the water inlet 331, the first through hole 353, the receiving groove 310, the second through hole 354 and the water outlet 341 increase, and the proportion of the cleaning liquid with foam entering the inner cavity 20 increases. Therefore, by controlling the rotation of the valve body 35, the opening of the first valve port 332 or the second valve port 342 can be adjusted to intelligently adjust the proportion of clean water and cleaning liquid entering the inner cavity 20, save detergent and water, and ultimately achieve a better cleaning effect, reduce costs, and save energy.

[0087] It should be noted that when cleaning the inner wall of the inner cavity 10, the first valve port 332 or the second valve port 342 can be closed first to allow the cleaning liquid foam to quickly fill the inner cavity 10. After cleaning for a certain period of time, the opening of the first valve port 332 or the second valve port 342 can be adjusted to gradually increase the proportion of water, and reduce the cleaning agent and foam, until the first valve port 332 and the second valve port 342 are fully opened, so that clean water quickly enters the inner cavity 10, and then cleans the inner cavity 10.

[0088] See also Figures 10 to 19As shown, in some embodiments, the valve plate 352 is provided with a plurality of first through holes 353 and a plurality of second through holes 354, and the plurality of first through holes 353 and the plurality of second through holes 354 are respectively provided on opposite sides of the valve plate 352. When the stopper 351 completely blocks the first valve port 332, as shown in FIG. Fig.16 In the state shown, the water inlet 331 can be arranged vertically opposite to the plurality of first through holes 353, and the water outlet 341 can be arranged vertically opposite to the plurality of second through holes 354. Therefore, the water introduced into the isolation cavity 322 through the water inlet 331 can simultaneously pass through the plurality of first through holes 353 and enter the containing tank 310, and a large amount of foam carrying detergent can simultaneously pass through the plurality of second through holes 354 and return to the isolation cavity 322, and be introduced into the ejection tube 34 through the water outlet 341, and then sprayed onto the inner wall of the inner cavity 20 through the ejection tube 34, thereby increasing the amount of foam entering the inner cavity 20. In addition, the number of the first through holes 353 and the second through holes 354 can be adjusted as needed, and are not limited here.

[0089] It should be noted that, in some embodiments, when the valve body 35 rotates and the stopper 351 completely blocks the second valve port 342, the second valve port 342 and the valve cavity 320 are in a fully closed state, the water inlet 331 can be arranged vertically opposite to the second through hole 354, and the water outlet 341 can be arranged vertically opposite to the first through hole 353. At this time, the water introduced into the isolation cavity 322 through the water inlet 331 enters the containing tank 310 through the second through hole 354, and a large amount of foam carrying detergent returns to the isolation cavity 322 through the first through hole 353, and is introduced into the ejection tube 34 through the water outlet 341, and then sprayed onto the inner wall of the inner cavity 20 through the ejection tube 34. That is, the positions and functions of the first through hole 353 and the second through hole 354 are interchanged at this time.

[0090] See also Figures 3 to 19 As shown, in some embodiments, a driving unit 16 is provided in the housing 1, and the driving unit 16 is connected to the valve body 35. The driving unit 16 is used to drive the valve body 35 to rotate in the valve cavity 320, thereby controlling the stopper 351 of the valve body 35 to open or close the first valve port 332, and controlling the opening of the first valve port 332. Alternatively, the stopper 351 of the valve body 35 is controlled to open or close the second valve port 342, and control the opening of the second valve port 342, thereby intelligently adjusting the water intake, adjusting the ratio of clean water to cleaning liquid, saving detergent and water, and finally achieving a better cleaning effect, reducing costs, and saving energy.

[0091] See also Figures 3 to 10As shown, in some embodiments, the driving unit 16 is a driving motor, which is arranged on the outer wall of the top of the inner tank 2, and the output shaft of the driving motor extends into the inner cavity 20 and is connected to the valve body 35. Therefore, the driving motor can intelligently control the valve body 35 to rotate in the valve cavity 320. In addition, the driving motor can be a forward and reverse motor, thereby controlling the valve body 35 to rotate forward or reverse in the valve cavity 320.

[0092] In some embodiments, a fixing bracket 17 is mounted on the driving motor, the fixing bracket 17 is sleeved on the driving motor, and the fixing bracket 17 is fixed on the top wall of the inner container 2. Therefore, the driving motor can be fixed on the outer wall of the top of the inner container 2 through the fixing bracket 17.

[0093] In some embodiments, a rotating portion 36 is provided at the top of the valve body 35. The rotating portion 36 is exposed on the top surface of the cover body 32, and the bottom surface of the rotating portion 36 is connected to the top of the valve body 35. The output shaft of the driving motor extends into the inner cavity 20 and is connected to the rotating portion 36. Therefore, the driving motor can control the rotation of the rotating portion 36, thereby controlling the valve body 35 to rotate in the valve cavity 320.

[0094] In some embodiments, the bottom surface of the rotating portion 36 is detachably connected to the top of the valve body 35. When the rotating portion 36 and the valve body 35 are mounted on the cover 32, the rotating portion 36 can block the top opening of the valve cavity 320, thereby closing the valve cavity 320.

[0095] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A household appliance, It is characterized in that include: A housing, which forms an outer shell of the household appliance; an inner cavity is formed in the housing; A spray head is arranged in the inner cavity; a containing tank for storing detergent is formed in the spray head, an inlet pipe and an ejection pipe are arranged on the spray head, a water inlet connected to the containing tank is opened on the inner wall of the inlet pipe, and a water outlet connected to the containing tank is opened on the inner wall of the ejection pipe; a valve cavity isolated from the containing tank is also arranged in the spray head, a first valve port connected to the valve cavity is formed at one end of the inlet pipe, and a second valve port connected to the valve cavity is formed at one end of the ejection pipe; the other end of the inlet pipe is used to connect to a water source, and the other end of the ejection pipe is connected to the inner cavity; The valve body is rotatably disposed in the valve cavity; when the valve body rotates, the valve body can open and close the first valve port and control the opening of the first valve port, or open and close the second valve port and control the opening of the second valve port.

2. The household appliance according to claim 1, It is characterized in that When the first valve port or the second valve port is closed by the valve body, water entering the introduction pipe can enter the containing tank through the water inlet, carry the detergent in the containing tank into the ejection pipe through the water outlet, and then be sprayed into the inner cavity through the outer end of the ejection pipe; When the valve body rotates and opens the first valve port and the second valve port, part of the water entering the introduction pipe can be introduced into the ejection pipe through the first valve port, the valve cavity, and the second valve port in sequence, and then sprayed into the inner cavity through the outer end of the ejection pipe; Another part of the water entering the introduction pipe can enter the containing tank through the water inlet, carry the detergent in the containing tank into the ejection pipe through the water outlet, and then be sprayed into the inner cavity through the outer port of the ejection pipe.

3. The household appliance according to claim 1, It is characterized in that A driving unit is disposed in the box body, and the driving unit is connected to the valve body. The driving unit is used to drive the valve body to rotate in the valve cavity to open and close the first valve port or the second valve port.

4. The household appliance according to claim 3, It is characterized in that The household appliance further comprises an inner container, wherein the inner cavity is formed in the inner container; The driving unit is a driving motor, which is arranged on the outer wall of the inner container. The output shaft of the driving motor extends into the inner cavity and is connected to the valve body.

5. The household appliance according to claim 1, It is characterized in that The nozzle comprises a receiving portion and a cover body, wherein the receiving portion is formed with the receiving groove, the top of the receiving portion is open, and the cover body is detachably covered on the top opening of the receiving portion; The introduction tube and the ejection tube are arranged on the cover body, the valve cavity is formed in the cover body, and the valve body is rotatably arranged in the cover body.

6. The household appliance according to claim 5, It is characterized in that The bottom end of the valve cavity is communicated with the accommodating groove, and a valve plate is protruded on the outer peripheral wall of the bottom end of the valve body. The valve plate is rotatably attached to the bottom port of the valve cavity and closes the bottom port of the valve cavity.

7. The household appliance according to claim 6, It is characterized in that The valve plate is rotatably covered on the notch of the accommodating groove; The valve plate is provided with a first through hole and a second through hole arranged at intervals; The water inlet can be communicated with the containing groove through the first through hole, and the water outlet can be communicated with the containing groove through the second through hole.

8. The household appliance according to claim 7, It is characterized in that A partition is provided in the cover body, the partition is arranged with a vertical spacing from the valve plate, and an isolation cavity is formed between the partition and the valve plate; The water inlet and the water outlet are respectively connected to the isolation cavity, and the isolation cavity is respectively connected to the accommodating groove through the first through hole and the second through hole.

9. The household appliance according to claim 7, It is characterized in that A stopper is convexly provided on the outer wall of the valve body, and the stopper is convexly provided on a side of the valve body facing the first through hole; When the valve body rotates, the stopper can open and close the first valve port or the second valve port; When the stopper closes the first valve port, the water inlet and the first through hole are arranged opposite to each other in vertical direction, and the water outlet and the second through hole are arranged opposite to each other in vertical direction.

10. The household appliance according to claim 7, It is characterized in that The cover body is detachably threadedly sleeved on the top of the accommodating portion; When the cover body is threadedly sleeved on the top of the accommodating portion, the valve sheet is sealingly covered at the notch of the accommodating groove.

11. The household appliance according to claim 1, It is characterized in that The household appliance also includes a clean water box and a steam generator; The clean water box is connected to the inlet end of the steam generator through a water inlet pipe, and the outlet end of the steam generator is connected to the outer end of the introduction pipe through a first pipeline; The water in the clean water box can be introduced into the steam generator through the water inlet pipe to be heated to form hot water, and the heated hot water can be introduced into the introduction pipe through the first pipeline.

12. The household appliance according to claim 11, It is characterized in that The outlet end of the steam generator is also provided with a second pipeline, and the outlet end of the steam generator is respectively connected to one end of the first pipeline and the second pipeline, and the other end of the second pipeline extends into the inner cavity and is connected to the inner cavity; the steam generated by heating of the steam generator can be introduced into the inner cavity through the second pipeline.

13. The household appliance according to claim 12, It is characterized in that A first switch valve is provided on the first pipeline, and the first switch valve is used to open and close the first pipeline; a second switch valve is provided on the second pipeline, and the second switch valve is used to open and close the second pipeline.

14. A household appliance, It is characterized in that include: A housing, which forms an outer shell of the household appliance; an inner cavity is formed in the housing; A nozzle is arranged in the inner cavity; the nozzle has an inlet pipe and an outlet pipe, a receiving tank for storing detergent is arranged in the nozzle, and the inlet pipe and the outlet pipe are respectively connected to the receiving tank; Clean water box; A steam generator, wherein the inlet end of the steam generator is connected to the clean water box; A first pipeline, one end of which is connected to the outlet end of the steam generator, and the other end of which is connected to the inlet pipe of the nozzle; a second pipeline, one end of which is connected to the outlet end of the steam generator and the other end of which is connected to the inner cavity; The water in the clean water box can enter the steam generator, and is introduced into the nozzle through the first pipeline, enters the containing tank through the introduction pipe, carries the detergent, and is sprayed into the inner cavity through the ejection pipe; The water in the clean water box can also be heated by the steam generator to form steam, and the steam can be introduced into the inner cavity through the second pipeline.

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