Composite water inlet valve and smart toilet

Abstract

This application relates to a composite water inlet valve and a smart toilet. The composite water inlet valve includes a valve body, a valve structure, and a switching structure. The valve body has a water inlet channel, a first water outlet channel, and a second water outlet channel. The first water outlet channel is connected to the water inlet channel, and the second water outlet channel includes a first water outlet section connected to the water inlet channel and a second water outlet section connected to the first water outlet section. The valve structure is located between the water inlet channel and the first water outlet channel and is used to connect or disconnect the water inlet channel and the first water outlet channel. The switching structure is located within the valve body. The switching structure disconnects the first water outlet section and the second water outlet section, and is configured to connect the first water outlet section and the second water outlet section when negative pressure is generated in the second water outlet section. The above-mentioned composite water inlet valve simplifies the structure of the composite water inlet valve and reduces the space occupied by the composite water inlet valve.

Description

Technical Field

[0001] This application relates to the field of valve technology, and in particular to a composite water inlet valve and a smart toilet. Background Technology

[0002] Smart toilets typically include a washing water path for targeted body cleaning and a flushing water path for flushing the toilet bowl. Smart toilets are usually connected to the water supply network via an inlet valve. When a smart toilet has multiple water paths, the inlet valve usually needs to control the flow of water into multiple paths. However, traditional inlet valves typically require multiple on / off mechanisms to control the flow of water into multiple paths, resulting in a complex structure and large space requirements. Utility Model Content

[0003] Therefore, it is necessary to provide a composite inlet valve and a smart toilet to address the problem that inlet valves controlling multiple water inlets have complex structures and occupy a large space.

[0004] A composite water inlet valve, comprising:

[0005] The valve body is provided with an inlet channel, a first outlet channel and a second outlet channel. The first outlet channel is connected to the inlet channel, and the second outlet channel includes a first outlet section connected to the inlet channel and a second outlet section connected to the first outlet section.

[0006] A valve structure is disposed between the water inlet channel and the first water outlet channel, and is used to open the water inlet channel and the first water outlet channel, or to block the water inlet channel and the first water outlet channel;

[0007] A switching structure is disposed within the valve body. The switching structure blocks the first water outlet section and the second water outlet section. The switching structure is configured to open the first water outlet section and the second water outlet section when a negative pressure is generated in the second water outlet section.

[0008] The aforementioned composite water inlet valve controls the opening and closing of the first water outlet channel through its valve structure. It also controls the opening and closing of the second water outlet channel by using a switching structure to activate both the first and second water outlet sections when negative pressure is generated in the second water outlet section. Therefore, the composite water inlet valve only requires one valve structure to control the opening and closing of one water outlet; the other outlet can be controlled by a suction device installed outside the composite water inlet valve. This simplifies the valve's structure, reduces its space requirements, and facilitates its installation and integration into devices such as smart toilets.

[0009] In one embodiment, the valve body is provided with a switch hole connecting the first water outlet section and the second water outlet section. The switch structure has a blocking part, which is located in the first water outlet section and blocks the switch hole. The blocking part is configured to move relative to the valve body away from the switch hole when negative pressure is generated in the second water outlet section, so as to open the switch hole.

[0010] In one embodiment, the switch structure further includes a movable part and a valve core. The movable part is disposed in the second water outlet section, and the valve core passes through the switch hole and is connected to the movable part and the blocking part. The movable part is configured to move relative to the valve body in a direction pointing towards the blocking part when negative pressure is generated in the second water outlet section, so as to drive the blocking part to move through the valve core.

[0011] In one embodiment, the switch structure further includes a flexible diaphragm disposed within the valve body and circumferentially connected to the inner side of the valve body, the second water outlet section being formed on the side of the flexible diaphragm facing the switch hole, and the movable part being made of a rigid material and connected to the side of the flexible diaphragm facing the switch hole.

[0012] In one embodiment, the movable part includes a flat plate structure and a side wing structure. The side wing structure is circumferentially connected to the flat plate structure and protrudes from the side of the flat plate structure opposite to the blocking part. The flexible diaphragm includes a main body, a deformable part, and a connecting part. The main body is fitted to the side of the flat plate structure opposite to the blocking part. The deformable part is circumferentially connected to the main body and protrudes toward the side of the main body opposite to the blocking part. The side wing structure is embedded in the deformable part. The connecting part is circumferentially connected to the deformable part and connected to the inner side of the valve body.

[0013] In one embodiment, the switch structure further includes an elastic element that abuts against the side of the sealing portion opposite to the valve core portion to apply a force to the sealing portion pointing toward the switch hole.

[0014] In one embodiment, the sealing portion includes a sealing structure and a mating structure. The elastic element is sleeved on the end of the mating structure away from the valve core. The mating structure protrudes outward in the circumferential direction to abut against the end of the elastic element. The sealing structure is sleeved on the end of the mating structure near the valve core and connected to the valve core.

[0015] In one embodiment, the valve body has a first valve body portion, a second valve body portion, a third valve body portion, and a fourth valve body portion. The water inlet channel and the first water outlet channel are disposed on the first valve body portion. The second valve body portion is connected to the first valve body portion. The third valve body portion is disposed on the second valve body portion to form the first water outlet section together with the second valve body portion. The fourth valve body portion is disposed on the second valve body portion. The flexible diaphragm is connected between the second valve body portion and the fourth valve body portion and forms the second water outlet section together with the second valve body portion.

[0016] In one embodiment, the second valve body portion protrudes toward the third valve body portion and surrounds the switch hole, and the blocking portion abuts against the portion of the second valve body portion protruding toward the third valve body portion to block the switch hole;

[0017] The third valve body is provided with a mounting groove recessed towards the switch hole, the elastic element is disposed in the mounting groove, and the sealing part is movably disposed in the mounting groove;

[0018] The third valve body is provided with a limiting structure located in the groove of the mounting groove and protruding into the mounting groove. The radial dimension of the part of the mating structure that abuts against the elastic element is greater than the radial dimension of the inner hole of the limiting structure. The limiting structure is used to limit the mating structure on the side of the mating structure opposite to the elastic element.

[0019] A smart toilet includes a composite inlet valve as described in any of the above embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the composite water inlet valve in some embodiments.

[0021] Figure 2 for Figure 1 The diagram shows the structure of the composite water inlet valve from another angle.

[0022] Figure 3 This is a cross-sectional schematic diagram of the composite water inlet valve in some embodiments.

[0023] Figure 4 for Figure 1 The diagram shown is a composite inlet valve with the valve structure omitted.

[0024] Figure 5 This is a cross-sectional schematic diagram of some components of the composite water inlet valve in some embodiments.

[0025] Figure 6 This is a schematic diagram of the switch structure in some embodiments.

[0026] Figure 7 for Figure 5 The diagram shows a partial enlarged view of the composite inlet valve in area B.

[0027] Figure 8 for Figure 5 An exploded view of some components of the composite water inlet valve. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] Please see Figure 1 , Figure 2 and Figure 3 , Figure 1 and Figure 2 The following are schematic diagrams of the composite water inlet valve 10 at different angles in some embodiments of this application. Figure 3 It shows Figure 1 The diagram shows a cross-sectional view of the composite water inlet valve 10. The composite water inlet valve 10 provided in this application can be used in a smart toilet.

[0035] The composite water inlet valve 10 may include a valve body 11 and a valve structure 13. The valve body 11 is provided with a water inlet channel 116 and a first water outlet channel 117. The valve structure 13 is disposed between the water inlet channel 116 and the first water outlet channel 117 and is used to connect or block the water inlet channel 116 and the first water outlet channel 117. It is understood that when the composite water inlet valve 10 is installed on a smart toilet, the water inlet channel 116 can be connected to the water supply network outside the smart toilet, and the first water outlet channel 117 can be connected to one or more water circuits inside the smart toilet, such as the cleaning water circuit used for washing parts of the user's body or the flushing water circuit used for flushing the toilet bowl. The valve structure 13 includes, but is not limited to, a solenoid valve. The valve structure 13 can block the water inlet channel 116 and the first water outlet channel 117 by means of electromagnetic force to close the composite water inlet valve 10. The valve structure 13 can also be disengaged from the water inlet channel 116 and the first water outlet channel 117 to open the water inlet channel 116 and the first water outlet channel 117, so that the water flow of the water supply network can flow into the water circuit of the smart toilet through the composite water inlet valve 10, thereby opening the composite water inlet valve 10.

[0036] structure Figure 3 and Figure 4 As shown, in some embodiments, the valve body 11 includes an annular portion 126 disposed within a first valve body portion 111, an inlet channel 116 and a first outlet channel 117 disposed within the first valve body portion 111. One end of the annular portion 126 is blocked by the first valve body portion 111, while the other end is open. The annular portion 126 is circumferentially spaced from the first valve body portion 111. The inlet channel 116 communicates with the outer peripheral space of the annular portion 126, and the first outlet channel 117 communicates with the inner space of the annular portion 126. The valve structure 13 can abut against and block one open end of the annular portion 126 to block the inlet channel 116 and the first outlet channel 117. In this way, the structural layout of the composite inlet valve 10 can be optimized, the structure of the composite inlet valve 10 can be simplified, and the space occupied by the composite inlet valve 10 can be reduced.

[0037] Please see Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the valve body 11 is further provided with a second water outlet channel 118, which includes a first water outlet section 1181 connected to the water inlet channel 116 and a second water outlet section 1182 connected to the first water outlet section 1181. The composite water inlet valve 10 also includes a switching structure 15, which is disposed within the valve body 11. The switching structure 15 blocks the first water outlet section 1181 and the second water outlet section 1182, and is configured to open the first water outlet section 1181 and the second water outlet section 1182 when a negative pressure is generated in the second water outlet section 1182.

[0038] It should be noted that when the switch structure 15 connects the first water outlet section 1181 and the second water outlet section 1182, the water from the water supply network can flow out through the composite inlet valve 10 from the second water outlet channel 118. This means the composite inlet valve 10 can control the on / off state of the two water circuits. The second water outlet section 1182 can be connected to one or more water circuits of the smart toilet, or to the water circuits of other devices outside the smart toilet, thereby enriching the functionality of the composite inlet valve 10 and expanding its applicability.

[0039] Furthermore, the switch structure 15 is configured to connect the first outlet section 1181 and the second outlet section 1182 when a negative pressure is generated in the second outlet section 1182. Therefore, by installing a water suction device in the water circuit connected to the second outlet section 1182, negative pressure can be provided to the second outlet section 1182 through the water suction device when water is needed from the second outlet channel 118, thereby controlling the opening of the second outlet channel 118. The water suction device includes, but is not limited to, any applicable type of water pump or similar device.

[0040] Therefore, the composite water inlet valve 10 only needs to be equipped with one valve structure 13 to control the opening and closing of one of the water outlet channels (first water outlet channel 117), while the opening and closing of the other water outlet channel (second water outlet channel 118) can be achieved by the water suction device outside the composite water inlet valve 10. This helps to simplify the structure of the composite water inlet valve 10, reduce the space occupied by the composite water inlet valve 10, and improve the applicability of the composite water inlet valve 10, thereby facilitating the installation and integration of the composite water inlet valve 10 in smart toilets.

[0041] refer to Figure 6 and Figure 7 As shown, in some embodiments, the valve body 11 is provided with a switch hole 119 connecting the first water outlet section 1181 and the second water outlet section 1182. The switch structure 15 has a blocking part 151, which is located in the first water outlet section 1181 and blocks the switch hole 119. The blocking part 151 is configured to move away from the switch hole 119 relative to the valve body 11 when a negative pressure is generated in the second water outlet section 1182, so as to open the switch hole 119 and allow the water flow in the inlet channel 116 to flow out of the composite inlet valve 10 through the first water outlet section 1181 and the second water outlet section 1182.

[0042] Combination Figure 5 , Figure 7 and Figure 8As shown, in some embodiments, the switch structure 15 further includes a movable part 152 and a valve core part 153. The movable part 152 is disposed in the second water outlet section 1182, and the valve core part 153 passes through the switch hole 119 and is connected to the movable part 152 and the blocking part 151. The movable part 152 is configured to move relative to the valve body 11 in a direction pointing towards the blocking part 151 when a negative pressure is generated in the second water outlet section 1182, so as to drive the blocking part 151 to move through the valve core part 153. The radial dimension of the movable part 152 is larger than the radial dimension of the blocking part 151. By responding to the negative pressure of the second water outlet section 1182 with the larger radial dimension of the movable part 152, the negative pressure action can be converted into a force that drives the blocking part 151 to disengage from the switch hole 119, which is beneficial to improving the response speed.

[0043] In some embodiments, the switch structure 15 further includes a flexible diaphragm 154, which is deformable. The flexible diaphragm 154 is made of materials including, but not limited to, plastic, rubber, elastomers, or other suitable polymers. The flexible diaphragm 154 is disposed within the valve body 11 and circumferentially connected to the inner side of the valve body 11. The second water outlet section 1182 is formed on the side of the flexible diaphragm 154 facing the switch hole 119. The movable part 152 is made of a rigid material, including but not limited to rigid plastic or metal. The movable part 152 is connected to the side of the flexible diaphragm 154 facing the switch hole 119.

[0044] Understandably, when the externally connected suction device of the second outlet section 1182 performs its suction action, a negative pressure is generated in the second outlet section 1182, causing the flexible diaphragm 154 to deform. For example, part of the flexible diaphragm 154 protrudes and deforms towards the switch hole 119, thereby causing the movable part 152 to move towards the switch hole 119, so as to drive the sealing part 151 to disengage from the switch hole 119 through the valve core part 153. The rigid movable part 152 helps to improve the stability of the movement of the valve core part 153 and the sealing part 151 relative to the valve body 11, thereby improving the performance reliability of the composite water inlet valve 10.

[0045] Furthermore, please see [link / reference] Figure 5As shown, in some embodiments, the movable part 152 includes a flat plate structure 1521 and a side wing structure 1522. The flat plate structure 1521 may be generally circular. The side wing structure 1522 is circumferentially connected to the flat plate structure 1521 and protrudes from the side of the flat plate structure 1521 opposite to the sealing part 151. The flexible diaphragm 154 includes a main body 1541, a deformable part 1542, and a connecting part 1543. The main body 1541 is attached to the side of the flat plate structure 1521 opposite to the sealing part 151. The deformable part 1542 is circumferentially connected to the main body 1541 and protrudes from the side of the main body 1541 opposite to the sealing part 151. The side wing structure 1522 is embedded in the deformable part 1542, and the connecting part 1543 is circumferentially connected to the deformable part 1542 and connected to the inner side of the valve body 11. With this configuration, when negative pressure is generated in the second water outlet section 1182, the deformation part 1542 mainly deforms to provide displacement stroke for the main body 1541 and the flat plate structure 1521. The side wing structure 1522 pushes the deformation part 1542 out so that it protrudes relative to the main body 1541, which can increase the feasible deformation range of the deformation part 1542. At the same time, the deformation degree of the main body 1541 is small. Combined with the rigid flat plate structure 1521, it is beneficial to improve the stability and reliability of the movement of the switch structure 15.

[0046] Combination Figure 5 and Figure 7 As shown, in some embodiments, the switch structure 15 further includes an elastic element 155. The elastic element 155 includes, but is not limited to, any suitable element capable of elastic deformation such as a spring. The elastic element 155 abuts against the side of the sealing part 151 facing away from the valve core part 153. The two ends of the elastic element 155 are respectively squeezed by the sealing part 151 and the valve body 11 and are in a compressed state, thereby applying a force to the sealing part 151 pointing towards the switch hole 119.

[0047] Understandably, when the second water outlet section 1182 does not generate negative pressure, or when the generated negative pressure provides a driving force to the sealing part 151 that is less than the elastic force exerted by the elastic element 155 on the sealing part 151, the elastic element 155 presses the sealing part 151 against the switch hole 119, causing the sealing part 151 to block the switch hole 119 and thus block the first water outlet section 1181 and the second water outlet section 1182. When the negative pressure generated in the second water outlet section 1182 causes the flexible diaphragm 154 to deform and the driving force exerted on the sealing part 151 is greater than the elastic force exerted by the elastic element 155 on the sealing part 151, the sealing part 151 moves away from the switch hole 119 and further squeezes the elastic element 155 to open the first water outlet section 1181 and the second water outlet section 1182. When the negative pressure in the second outlet section 1182 is removed, or reduced to a level where the force applied to the sealing part 151 is less than the elastic force applied to the sealing part 151 by the elastic element 155, the sealing part 151 can recover under the elastic force of the elastic element 155 and re-seal the switch hole 119. The elastic element 155 provides the clamping force and recovery force to block the switch hole 119, which helps simplify the structural design of the composite water inlet valve 10 and reduces its manufacturing and operating costs.

[0048] Please see again. Figure 1 , Figure 3 and Figure 5 As shown, in some embodiments, the valve body 11 further includes a second valve body portion 112, a third valve body portion 113, and a fourth valve body portion 114. An inlet channel 116 and a first outlet channel 117 are disposed on the first valve body portion 111. The second valve body portion 112 is connected to the first valve body portion 111. The third valve body portion 113 covers the second valve body portion 112 to form a first outlet section 1181. The fourth valve body portion 114 covers the second valve body portion 112. A flexible diaphragm 154 connects the second valve body portion 112 and the fourth valve body portion 114, and forms a second outlet section 1182 with the second valve body portion 112. This arrangement helps reduce the installation difficulty of the switch structure 15 within the valve body 11 and facilitates the installation of various parts of the valve body 11.

[0049] In some embodiments, the second valve body portion 112 protrudes toward the third valve body portion 113 and surrounds a switch hole 119. The sealing portion 151 abuts against the portion of the second valve body portion 112 protruding toward the third valve body portion 113 to seal the switch hole 119. This improves the reliability of the sealing portion 151 sealing the switch hole 119.

[0050] Combination Figure 5 and Figure 7As shown, in some embodiments, the third valve body 113 is provided with a mounting groove 121 recessed towards the switch hole 119, the elastic element 155 is disposed in the mounting groove 121, and the sealing part 151 is movably disposed in the mounting groove 121. The mounting groove 121 can provide a limiting effect on the elastic element 155 and the sealing part 151, preventing the sealing part 151 and the elastic element 155 from coming off or shifting, which is beneficial to improving the structural and performance reliability of the composite water inlet valve 10.

[0051] In some embodiments, the sealing portion 151 includes a sealing structure 1511 and a mating structure 1512. An elastic element 155 is sleeved on the end of the mating structure 1512 away from the valve core portion 153. A portion of the mating structure 1512 protrudes outward in the circumferential direction to abut against the end of the elastic element 155. The sealing structure 1511 is sleeved on the end of the mating structure 1512 near the valve core portion 153 and connected to the valve core portion 153. The outward protrusion of the mating structure 1512 to abut against the elastic element 155 can stably compress and limit the elastic element 155. The arrangement of the sealing structure 1511 sleeved on the mating structure 1512 also helps to improve the structural reliability of the composite water inlet valve 10.

[0052] In some embodiments, the third valve body 113 is provided with a limiting structure 122 located in the groove of the mounting groove 121 and protruding inward into the mounting groove 121. The radial dimension of the portion of the mating structure 1512 that abuts against the elastic element 155 is greater than the radial dimension of the inner cavity of the limiting structure 122. The limiting structure 122 is used to limit the mating structure 1512 on the side opposite to the elastic element 155. On the two opposite sides of the circumferentially outward protruding portion of the mating structure 1512, one side abuts against the elastic element 155 to compress and limit the elastic element 155, and the other side is opposite to the limiting structure 122 so that the limiting structure 122 can limit the mating structure 1512, thereby limiting the sealing portion 151 within the mounting groove 121. This not only improves the structural reliability of the composite water inlet valve 10, but also simplifies the structural configuration of the composite water inlet valve 10, reduces manufacturing costs, and compresses the space occupied.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A composite water inlet valve, characterized in that, include: The valve body is provided with an inlet channel, a first outlet channel and a second outlet channel. The first outlet channel is connected to the inlet channel, and the second outlet channel includes a first outlet section connected to the inlet channel and a second outlet section connected to the first outlet section. A valve structure is disposed between the water inlet channel and the first water outlet channel, and is used to open the water inlet channel and the first water outlet channel, or to block the water inlet channel and the first water outlet channel; A switching structure is disposed within the valve body. The switching structure blocks the first water outlet section and the second water outlet section. The switching structure is configured to open the first water outlet section and the second water outlet section when a negative pressure is generated in the second water outlet section.

2. The composite inlet valve according to claim 1, characterized in that, The valve body is provided with a switch hole connecting the first water outlet section and the second water outlet section. The switch structure has a blocking part. The blocking part is located in the first water outlet section and blocks the switch hole. The blocking part is configured to move away from the switch hole relative to the valve body when negative pressure is generated in the second water outlet section, so as to open the switch hole.

3. The composite water inlet valve according to claim 2, characterized in that, The switch structure further includes a movable part and a valve core. The movable part is located in the second water outlet section, and the valve core passes through the switch hole and is connected to the movable part and the sealing part. The movable part is configured to move relative to the valve body in a direction pointing towards the sealing part when negative pressure is generated in the second water outlet section, so as to drive the sealing part to move through the valve core.

4. The composite inlet valve according to claim 3, characterized in that, The switch structure also includes a flexible diaphragm, which is disposed inside the valve body and circumferentially connected to the inner side of the valve body. The second water outlet section is formed on the side of the flexible diaphragm facing the switch hole. The movable part is made of rigid material and is connected to the side of the flexible diaphragm facing the switch hole.

5. The composite inlet valve according to claim 4, characterized in that, The movable part includes a flat plate structure and a side wing structure. The side wing structure is circumferentially connected to the flat plate structure and protrudes from the side of the flat plate structure opposite to the sealing part. The flexible diaphragm includes a main body, a deformable part, and a connecting part. The main body is attached to the side of the flat plate structure opposite to the sealing part. The deformable part is circumferentially connected to the main body and protrudes toward the side of the main body opposite to the sealing part. The side wing structure is embedded in the deformable part. The connecting part is circumferentially connected to the deformable part and connected to the inner side of the valve body.

6. The composite inlet valve according to claim 4, characterized in that, The switch structure also includes an elastic element that abuts against the side of the sealing portion facing away from the valve core portion to apply a force to the sealing portion in the direction of the switch hole.

7. The composite inlet valve according to claim 6, characterized in that, The sealing part includes a sealing structure and a mating structure. The elastic element is sleeved on the end of the mating structure away from the valve core. The mating structure protrudes outward in the circumferential direction to abut against the end of the elastic element. The sealing structure is sleeved on the end of the mating structure close to the valve core and connected to the valve core.

8. The composite inlet valve according to claim 7, characterized in that, The valve body has a first valve body portion, a second valve body portion, a third valve body portion, and a fourth valve body portion. The water inlet channel and the first water outlet channel are disposed on the first valve body portion. The second valve body portion is connected to the first valve body portion. The third valve body portion is disposed on the second valve body portion to form the first water outlet section together with the second valve body portion. The fourth valve body portion is disposed on the second valve body portion. The flexible diaphragm is connected between the second valve body portion and the fourth valve body portion and forms the second water outlet section together with the second valve body portion.

9. The composite water inlet valve according to claim 8, characterized in that, The second valve body portion protrudes toward the third valve body portion and surrounds the switch hole, and the sealing portion abuts against the portion of the second valve body portion that protrudes toward the third valve body portion to seal the switch hole; The third valve body is provided with a mounting groove recessed towards the switch hole, the elastic element is disposed in the mounting groove, and the sealing part is movably disposed in the mounting groove; The third valve body is provided with a limiting structure located in the groove of the mounting groove and protruding into the mounting groove. The radial dimension of the part of the mating structure that abuts against the elastic element is greater than the radial dimension of the inner hole of the limiting structure. The limiting structure is used to limit the mating structure on the side of the mating structure opposite to the elastic element.

10. A smart toilet, characterized in that, Includes the composite inlet valve as described in any one of claims 1-9.

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