Water outlet device, water outlet system, intelligent cover plate and intelligent toilet

Abstract

This utility model discloses a water dispensing device, including a housing, a rectifier, and a switching mechanism. The housing has an inlet channel, a first outlet channel, and a second outlet channel. The housing also has an air inlet. The first outlet channel is connected to an external air source through the air inlet. The rectifier is located in the first outlet channel and has a rectifying hole. The flow cross-sectional area of ​​the rectifier hole is smaller than that of the first outlet channel. The switching mechanism controls the water flow in the inlet channel to selectively enter either the first or second outlet channel. This utility model's water dispensing device accelerates the water flow and creates negative pressure through the rectifier. External gas can enter the first outlet channel from the air inlet under atmospheric pressure to mix and form microbubble water. This is not limited by inlet pressure or flow rate. Furthermore, it integrates the functions of ordinary water and microbubble water into one device, resulting in a compact and simple structure, which is beneficial for miniaturizing the water dispensing device.

Description

Technical Field

[0001] This utility model relates to the field of smart toilets, and in particular to a water outlet device, a water outlet system, a smart toilet seat, and a smart toilet. Background Technology

[0002] Microbubbles typically refer to tiny bubbles with a diameter of less than 50 micrometers (μm) when they are generated. When microbubbles burst, they generate localized high pressure and high temperature, which can break down dirt floating on liquids and adhering to objects, enhancing the cleaning power of the liquid. However, current water dispensing devices using microbubbles require both high water pressure and high water flow rate to produce a sufficient number of microbubbles. This limits their application in washing components with lower water pressure and flow rate requirements. Furthermore, to allow users to freely choose between microbubble water and regular water, a separate regular water dispensing device is often required in addition to the microbubble dispensing device, resulting in a complex structure that hinders miniaturization of the dispensing system. Summary of the Invention

[0003] This utility model proposes a water outlet device, a water outlet system, an intelligent toilet seat, and an intelligent toilet, aiming to solve one of the aforementioned technical problems in the prior art.

[0004] To achieve the above objectives, a first aspect of this utility model provides a water outlet device, comprising: The housing is provided with a water inlet channel, a first water outlet channel and a second water outlet channel, and an air inlet. The first water outlet channel is connected to an external air source through the air inlet. A rectifier is disposed in the first water outlet channel. The rectifier is provided with a rectifier hole. The cross-sectional area of ​​the rectifier hole is smaller than the cross-sectional area of ​​the first water outlet channel. The air inlet is disposed on the first water outlet channel and located on the side of the rectifier facing away from the water inlet channel. A switching mechanism is used to control the water flow in the inlet channel to selectively enter either the first outlet channel or the second outlet channel.

[0005] According to the first aspect of the present invention, the water outlet device accelerates the water flow and creates negative pressure through a rectifier. External gas can enter the first water outlet channel from the air inlet under atmospheric pressure to mix and form microbubble water, without being limited by inlet water pressure or flow rate. Furthermore, the user can manually or electrically adjust the state of the switching mechanism to select between outputting ordinary water or microbubble water, making it convenient to use. Moreover, by setting the switching mechanism, the functions of ordinary water and microbubble water are integrated into one device, resulting in a compact and simple structure, which is beneficial for miniaturizing the water outlet device.

[0006] According to some embodiments of the present invention, the water inlet channel and the first water outlet channel are connected through a first water inlet, and the water inlet channel and the second water outlet channel are connected through a second water inlet. The switching mechanism includes a driving mechanism and a plug, and the plug can be driven by the driving mechanism to block the first water inlet or the second water inlet.

[0007] According to some embodiments of the present invention, the first water outlet channel further includes a first mixing zone, which is disposed between the air inlet and the water outlet end of the first water outlet channel.

[0008] According to some embodiments of the present invention, the first water outlet channel further includes a second mixing zone, which is disposed between the first mixing zone and the water outlet end of the first water outlet channel, wherein the cross-sectional area of ​​the second mixing zone gradually decreases along the water flow direction.

[0009] According to some embodiments of the present invention, the first water outlet channel further includes a third mixing zone, the air inlet is disposed on the third mixing zone, the third mixing zone is disposed between the rectifier and the first mixing zone, and the water passage cross-sectional area of ​​the third mixing zone is smaller than the water passage cross-sectional area of ​​the first mixing zone, and the air inlet is disposed in the third mixing zone.

[0010] According to some embodiments of the present invention, the first water outlet channel further includes a third mixing zone, which is disposed between the rectifier and the first mixing zone. The water passage cross-sectional area of ​​the third mixing zone is smaller than that of the first mixing zone. The air inlet is disposed at one end of the first mixing zone near the third mixing zone. When water flows from the third mixing zone into the first mixing zone, gas can enter the third mixing zone from the air inlet.

[0011] According to some embodiments of the present invention, the housing further includes an air intake channel and an air passage chamber. The number of air intakes is set to N, where N is an integer greater than or equal to 2. The air intake channel connects to all the air intakes simultaneously through the air passage chamber.

[0012] A second aspect of this utility model provides a water outlet system, including: a water outlet component and the aforementioned water outlet device, and further including: The tee fitting includes a first inlet, a second inlet, and an outlet. The first inlet is connected to the outlet end of the first outlet channel, the second inlet is connected to the outlet end of the second outlet channel, and the outlet is connected to the outlet component. An air supply assembly, which can supply air to the water outlet device through the air inlet; A water supply component is connected to the water inlet channel to supply water to the water outlet device.

[0013] A third aspect of this utility model provides an intelligent cover, comprising: a water outlet component and the aforementioned water outlet device, and further comprising: The tee fitting includes a first inlet, a second inlet, and an outlet. The first inlet is connected to the outlet end of the first outlet channel, the second inlet is connected to the outlet end of the second outlet channel, and the outlet is connected to the outlet component. An air supply assembly, which can supply air to the water outlet device through the air inlet; A water supply component is connected to the water inlet channel to supply water to the water outlet device; A control component, which is electrically connected to at least one of the switching mechanism, the gas supply component, and the water supply component.

[0014] A fourth aspect of this utility model provides a smart toilet, comprising: the above-described water outlet device, or the above-described water outlet system, or the above-described smart toilet seat.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This diagram shows an overall schematic of the water outlet device provided in an embodiment of the present invention; Figure 2 It shows Figure 1 A sectional view along section XX; Figure 3 It shows Figure 1 A sectional view along the YY section; Figure 4 A schematic diagram of the overall water outlet system provided in an embodiment of this utility model is shown.

[0017] Figure label: 100. Water outlet device; 110. Housing; 111. Water inlet channel; 112. First water outlet; 113. First water outlet channel; 1131. First mixing zone; 1132. Second mixing zone; 1133. Third mixing zone; 114. Second water outlet; 115. Second water outlet channel; 116. Air inlet channel; 117. Air passage; 118. Air inlet; 120. Rectifier; 121. Rectifier hole; 130. Switching mechanism; 131. Drive mechanism; 132. Plug; 200. Water outlet components; 300. Tee fitting; 310. First water inlet; 320. Second water inlet; 330. Water outlet; 400. Gas supply components; 500. Water supply components; 600. Control components. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] refer to Figure 1 In some specific embodiments of this utility model, a water outlet device 100 that can output microbubble water is provided. Specifically, it can be a faucet, shower head or other shower product, or a spray gun in a smart toilet. The water outlet device 100 includes at least two types of water output: ordinary water and microbubble water, which users can switch between according to their needs.

[0020] refer to Figure 1-3 The water outlet device 100 of this utility model embodiment includes a housing 110, a rectifier 120 and a switching mechanism 130.

[0021] The shell 110 can be integrally formed or assembled from multiple shell sections. The shell 110 is provided with a water inlet channel 111, a first water outlet channel 113, and a second water outlet channel 115. Specifically, the first water outlet channel 113 and the second water outlet channel 115 are connected in parallel. That is, after water enters the water inlet channel 111, it can choose to flow into either the first water outlet channel 113 or the second water outlet channel 115. The water output from the second water outlet channel 115 is ordinary water. The shell 110 is also provided with an air inlet 118, which is located on the first water outlet channel 113. The first water outlet channel 113 is connected to an external air source through the air inlet 118, allowing gas to enter the first water outlet channel 113 from the air inlet 118.

[0022] The housing 110 is also provided with a rectifier 120, which is disposed in the first water outlet channel 113. Specifically, the rectifier 120 can be integrally formed in the first water outlet channel 113 of the housing 110, or the rectifier 120 can be installed in the first water outlet channel 113 as an independent structural component. Alternatively, the first water outlet channel 113 can be formed by splicing two water pipes, and the rectifier 120 can be located at the connection of the two water pipes. Specifically, the rectifier 120 can be spliced ​​with the two water pipes, or it can be integrally formed with the two water pipes. No limitation is made here. The rectifier 120 is provided with rectifier holes 121. The number of rectifier holes 121 can be one, two or more. The total cross-sectional area of ​​all rectifier holes 121 is less than the cross-sectional area of ​​the first water outlet channel 113. The air inlet 118 is provided on the first water outlet channel 113 and is located on the side of the rectifier 120 away from the water inlet channel 111.

[0023] The switching mechanism 130 is used to control the water flow in the inlet channel 111 to selectively enter either the first outlet channel 113 or the second outlet channel 115. For example, the switching mechanism 130 can be a gate valve, baffle plate, etc. installed on the outlet end of the inlet channel 111, which can selectively close one of the two outlet channels and connect the other outlet channel to the inlet channel 111.

[0024] According to the water outlet device 100 provided in this embodiment of the present invention, since the cross-sectional area of ​​the rectifier orifice 121 is smaller than that of the first water outlet channel 113, when water flows through the rectifier 120, even low-pressure or low-velocity water can be accelerated. Therefore, the water velocity in the first water outlet channel 113 on the side of the rectifier 120 facing away from the inlet channel 111 is relatively large. As can be seen from the Venturi principle, the pressure at this point is low. Therefore, external gas can enter the first water outlet channel 113 from the air inlet 118 under atmospheric pressure to mix and form microbubble water, without being limited by the inlet pressure or flow rate. In addition, the user can adjust the state of the switching mechanism 130 manually or electrically to select the output of ordinary water or microbubble water, which is convenient to use. Furthermore, by setting the switching mechanism 130, the functions of ordinary water and microbubble water are integrated into one device, which is compact and simple in structure and conducive to the miniaturization of the water outlet device 100.

[0025] It is understandable that the external air source can be the atmosphere of the external environment, or it can be a gas supply device such as a gas cylinder other than the water outlet device.

[0026] refer to Figure 2In some specific embodiments of this utility model, the water inlet channel 111 and the first water outlet channel 113 are connected by the first water inlet 112, and the water inlet channel 111 and the second water outlet channel 115 are connected by the second water inlet 114. The switching mechanism 130 includes a driving mechanism 131 and a plug 132. Under the drive of the driving mechanism 131, the plug 132 can block the first water inlet 112 or the second water inlet 114.

[0027] It is understandable that the drive mechanism 131 can be a manually operated switch or a solenoid valve, etc.

[0028] refer to Figure 2 In some specific embodiments of this utility model, the first water outlet channel 113 includes a first mixing zone 1131, which is disposed between the air inlet 118 and the water outlet end of the first water outlet channel 113.

[0029] According to the embodiment of this utility model, after the external gas enters the first water outlet channel 113 from the air inlet 118 under the action of pressure difference, it can be fully mixed with the water flow in the first mixing zone 1131, so that the bubbles contained in the water flow are more uniform.

[0030] refer to Figure 2 In some specific embodiments of this utility model, the first water outlet channel 113 further includes a second mixing zone 1132, which is disposed between the first mixing zone 1131 and the water outlet end of the first water outlet channel 113. The cross-sectional area of ​​the second mixing zone 1132 gradually decreases along the water flow direction.

[0031] In this embodiment of the invention, the second mixing zone 1132 is equivalent to an oscillation chamber. After the gas-water mixture initially mixed in the first mixing zone 1131 enters the second mixing zone 1132, as the cross-sectional area of ​​the water passage gradually decreases, the gas-water mixture continuously collides on the inner wall of the second mixing zone 1132, thereby making the gas and water more fully mixed.

[0032] refer to Figure 2 In some specific embodiments of this utility model, the first water outlet channel 113 further includes a third mixing zone 1133. Specifically, the air inlet 118 is disposed on the third mixing zone 1133. The third mixing zone 1133 is disposed between the rectifier 120 and the first mixing zone 1131, and the water passage cross-sectional area of ​​the third mixing zone 1133 is smaller than the water passage cross-sectional area of ​​the first mixing zone 1131. The air inlet 118 is disposed in the third mixing zone 1133.

[0033] In this embodiment of the invention, gas enters the third mixing zone 1133 from the air inlet 118 and mixes with the water flow for the first time. Since the cross-sectional area of ​​the third mixing zone 1133 is smaller than that of the first mixing zone 1131, the gas-water mixture is injected from the third mixing zone 1133 into the first mixing zone 1131. At this time, the mixing process in the first mixing zone 1131 is the second mixing. Thus, the gas and water are fully mixed through multiple mixing processes.

[0034] refer to Figure 2-3 In some specific embodiments of this utility model, the first water outlet channel 113 further includes a third mixing zone 1133. The third mixing zone 1133 is disposed between the rectifier 120 and the first mixing zone 1131. The water passage cross-sectional area of ​​the third mixing zone 1133 is smaller than that of the first mixing zone 1131. The air inlet 118 is disposed on the first mixing zone 1131. Specifically, it is disposed at one end of the first mixing zone 1131 near the third mixing zone 1133. Since the water passage cross-sectional area of ​​the third mixing zone 1133 is smaller than that of the first mixing zone 1131, when water is sprayed from the third mixing zone 1133 into the first mixing zone 1131, a negative pressure will be formed at one end of the first mixing zone 1131 near the third mixing zone 1133. As a result, external gas can enter the first mixing zone 1131 from the air inlet 118 under atmospheric pressure and mix with the sprayed water.

[0035] In some specific embodiments of this utility model, multiple air inlets 118 can be provided, and air inlets 118 are provided on the third mixing zone 1133 and the end of the first mixing zone 1131 near the third mixing zone 1133. Thus, the process of air intake and gas mixing occurs in both the third mixing zone 1133 and the first mixing zone 1131, which greatly increases the gas content of the water flow.

[0036] refer to Figure 2-3 In some specific embodiments of this utility model, the housing 110 further includes an air intake channel 116 and an air passage 117. The number of air inlets 118 is set to N, where N is an integer greater than or equal to 2. The air intake channel 116 is connected to all air inlets 118 simultaneously through the air passage 117.

[0037] According to this embodiment of the invention, providing multiple air inlets 118 can increase the amount of gas drawn in, thereby allowing the water flow to fully contact the gas, resulting in the output microbubble water containing more bubbles. Furthermore, this embodiment includes an air passage 117 that simultaneously communicates with all air inlets 118, thus requiring only one air intake channel 116 to simultaneously supply air to all air inlets 118, eliminating the need for each air inlet 118 to have a separate air intake channel 116 connecting to the outside. Therefore, the structure of the water outlet device 100 can be further simplified.

[0038] refer to Figure 4 Other embodiments of this utility model provide a water outlet system, including a water outlet component 200 and the aforementioned water outlet device 100. Specifically, the water outlet component 200 can be a faucet, shower head, etc., or a bidet, spray gun, etc. for a toilet.

[0039] The water outlet system also includes a tee fitting 300, an air supply component 400, a water supply component 500, and a control component 600. Specifically, the tee fitting 300 can be a common tee pipe, including a first inlet 310, a second inlet 320, and an outlet 330. The first inlet 310 is connected to the outlet end of the first outlet channel 113, the second inlet 320 is connected to the outlet end of the second outlet channel 115, and the outlet 330 is connected to the water outlet component 200. Thus, the tee fitting 300 can connect two water outlet channels to the same water outlet component 200, and the water outlet component 200 only needs to be provided with one inlet hole, without the need for additional flow channels and inlets.

[0040] An air supply component 400, connected to the air inlet channel 116, is used to supply air to the water outlet device 100 through the air inlet 118. Specifically, the air supply component 400 can be an air intake device connected to the bathroom environment, such as an air pump, used to input external air into the water outlet device 100. Alternatively, it can be an independent air source, from which air can be supplied into the water outlet device 100. The water supply component 500 is connected to the inlet end of the water inlet channel 111. The water supply component 500 can be an independent water tank or a water pump, water valve, etc. connected to the municipal water source, which can input water into the water outlet device 100.

[0041] In some specific embodiments of this utility model, an intelligent toilet seat (not shown) is provided, including a water outlet component 200 and the aforementioned water outlet device 100. Specifically, the water outlet component 200 can be a faucet, shower head, etc., or a bidet, spray gun, etc.

[0042] The smart cover also includes a T-joint 300, an air supply component 400, a water supply component 500, and a control component 600. Specifically, the T-joint 300 can be a common T-pipe, including a first inlet 310, a second inlet 320, and an outlet 330. The first inlet 310 is connected to the outlet end of the first outlet channel 113, the second inlet 320 is connected to the outlet end of the second outlet channel 115, and the outlet 330 is connected to the outlet component 200. Thus, the T-joint 300 can connect two outlet channels to the same outlet component 200, and the outlet component 200 only needs to have one inlet hole, without the need for additional flow channels and inlets.

[0043] An air supply component 400, connected to the air inlet channel 116, is used to supply air to the water outlet device 100 through the air inlet 118. Specifically, the air supply component 400 can be an air intake device connected to the bathroom environment, such as an air pump, used to input external air into the water outlet device 100. Alternatively, it can be an independent air source, from which air can be supplied into the water outlet device 100. The water supply component 500 is connected to the inlet end of the water inlet channel 111. The water supply component 500 can be an independent water tank or a water pump, water valve, etc. connected to the municipal water source, which can input water into the water outlet device 100.

[0044] The control component 600 is electrically connected to at least one of the switching mechanism 130, the air supply component 400, and the water supply component 500. It is used to electrically control the mechanism of the connected object. The control component 600 can also be simultaneously driven by the switching mechanism 130, the air supply component 400, and the water supply component 500. Users can control the control component 600 via buttons or other switches to drive each part of the structure to achieve specific functions.

[0045] In some specific embodiments of this utility model, a smart toilet (not shown) is also provided, including the above-mentioned water outlet device 100, or the above-mentioned water outlet system, or the above-mentioned smart toilet seat.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0047] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this specification, references to terms such as "some specific embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water outlet device, characterized in that, include: The housing is provided with a water inlet channel, a first water outlet channel and a second water outlet channel, and an air inlet. The first water outlet channel is connected to an external air source through the air inlet. A rectifier is disposed in the first water outlet channel. The rectifier is provided with a rectifier hole. The cross-sectional area of ​​the rectifier hole is smaller than the cross-sectional area of ​​the first water outlet channel. The air inlet is disposed on the first water outlet channel and located on the side of the rectifier facing away from the water inlet channel. A switching mechanism is used to control the water flow in the inlet channel to selectively enter either the first outlet channel or the second outlet channel.

2. The water outlet device according to claim 1, characterized in that, The water inlet channel and the first water outlet channel are connected by a first water inlet, and the water inlet channel and the second water outlet channel are connected by a second water inlet. The switching mechanism includes a driving mechanism and a plug, and the plug can be driven by the driving mechanism to block the first water inlet or the second water inlet.

3. The water outlet device according to claim 1, characterized in that, The first water outlet channel further includes a first mixing zone, which is located between the air inlet and the water outlet end of the first water outlet channel.

4. The water outlet device according to claim 3, characterized in that, The first water outlet channel further includes a second mixing zone, which is located between the first mixing zone and the water outlet end of the first water outlet channel, wherein the cross-sectional area of ​​the second mixing zone gradually decreases along the water flow direction.

5. The water outlet device according to claim 3, characterized in that, The first water outlet channel further includes a third mixing zone, the air inlet is disposed on the third mixing zone, the third mixing zone is disposed between the rectifier and the first mixing zone, and the water passage cross-sectional area of ​​the third mixing zone is smaller than the water passage cross-sectional area of ​​the first mixing zone, and the air inlet is disposed in the third mixing zone.

6. The water outlet device according to claim 3, characterized in that, The first water outlet channel also includes a third mixing zone, which is disposed between the rectifier and the first mixing zone. The cross-sectional area of ​​the third mixing zone is smaller than that of the first mixing zone. The air inlet is disposed at one end of the first mixing zone near the third mixing zone. When water flows from the third mixing zone into the first mixing zone, gas can enter the third mixing zone from the air inlet.

7. The water outlet device according to claim 1, characterized in that, The housing also includes an air intake channel and an air passage chamber. There are N air intakes, where N is an integer greater than or equal to 2. The air intake channel connects to all the air intakes simultaneously through the air passage chamber.

8. A water outlet system, characterized in that, include: The water outlet component and the water outlet device as described in any one of claims 1-7 further include: The tee fitting includes a first inlet, a second inlet, and an outlet. The first inlet is connected to the outlet end of the first outlet channel, the second inlet is connected to the outlet end of the second outlet channel, and the outlet is connected to the outlet component. An air supply assembly, which can supply air to the water outlet device through the air inlet; A water supply component is connected to the water inlet channel to supply water to the water outlet device.

9. A smart cover plate, characterized in that, include: The water outlet component and the water outlet device as described in any one of claims 1-7 further include: The tee fitting includes a first inlet, a second inlet, and an outlet. The first inlet is connected to the outlet end of the first outlet channel, the second inlet is connected to the outlet end of the second outlet channel, and the outlet is connected to the outlet component. An air supply assembly, which can supply air to the water outlet device through the air inlet; A water supply component is connected to the water inlet channel to supply water to the water outlet device; A control component, which is electrically connected to at least one of the switching mechanism, the gas supply component, and the water supply component.

10. A smart toilet, characterized in that, include: The water outlet device as described in any one of claims 1-7, or the water outlet system as described in claim 8, or the smart cover as described in claim 9.

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