Water outlet device

Abstract

The application provides a water outlet device, which comprises a front part, a rear part and a flexible diaphragm arranged between the front part and the rear part. A variable volume cavity is formed between the front part and the rear part for the flexible diaphragm to be stretched and deformed, and the front part is provided with a plurality of water outlet nozzles for water to flow out of the water outlet device. In a water-off state, the flexible diaphragm is at least partially initially stretched and deformed to seal the water outlet nozzles, and in a water-on state, water flows into the space between the flexible diaphragm and the front part, and the flexible diaphragm is at least partially secondarily stretched and deformed towards the rear part under the water pressure to be separated from the sealing cooperation with the water outlet nozzles. That is, in the water-off state, the flexible diaphragm is initially stretched and deformed to cover the water outlet nozzles to seal the water outlet nozzles, at this time, the water in the water outlet device cannot be discharged through the water outlet nozzles, so as to prevent the water in the water outlet device from still dripping through the water outlet nozzles in the water-off state to affect the use experience of the user, and in the water-on state, the flexible diaphragm can be deformed towards the variable volume cavity under the water pressure to open the water outlet nozzles, so as to realize water outlet.

Description

Technical Field

[0001] This application relates to the field of water-dispensing showerhead technology, and more particularly to a water-dispensing device. Background Technology

[0002] Currently, water-spraying devices such as shower heads are a type of shower nozzle, also called a shower head, which is a device used in bathrooms to spray water. It is usually connected to a water heater or water pipe, and sprays water evenly through multiple small holes for users to shower and rinse.

[0003] However, in actual use, even after the water is turned off, the water inside the showerhead will continue to drip for a period of time, which will result in a poor user experience. Utility Model Content

[0004] The purpose of this application is to provide a water outlet device that aims to solve the problem of how to prevent the water outlet device from dripping water after the water is turned off.

[0005] In a first aspect, embodiments of this application provide a water outlet device, including a front part, a rear part, and a flexible diaphragm disposed between the front part and the rear part; A ductile cavity is formed between the front part and the rear part to allow the flexible diaphragm to undergo stretching deformation; The front part is provided with multiple water outlets from which water flows out of the water outlet device; When the water is turned off, the flexible diaphragm at least partially stretches and deforms, blocking the water outlet. When the water is boiling, water flows into the space between the flexible diaphragm and the front part. At least part of the flexible diaphragm is deformed towards the rear part under the action of water pressure to disengage from the sealing fit with the water outlet.

[0006] In some embodiments, the rear portion has a conforming surface, the front portion has a compressive surface, and the flexible diaphragm is at least partially sandwiched between the conforming surface and the compressive surface.

[0007] In some embodiments, the inlet of the water outlet protrudes from the front pressure surface to resist at least a portion of the flexible diaphragm from undergoing initial stretching deformation into the capacitive cavity.

[0008] In some embodiments, the pressing surface and the conforming surface are disposed around the inlet of the water outlet and / or between the inlets of each water outlet.

[0009] In some embodiments, the conforming surface and / or the compressing surface are configured to adhere to and absorb the flexible membrane.

[0010] In some embodiments, at least one ventilation channel is provided on the rear part, and the ventilation channel connects the variable cavity to the outside atmosphere.

[0011] In some embodiments, multiple water outlets are provided, and one or more variable-capacity cavities are provided; Each of the water outlets is provided with at least one inlet and at least one outlet corresponding to each inlet; or, each of the water outlets is provided with at least one inlet and at least two outlets, wherein at least two outlets share one inlet. The plurality of water outlets correspond at least partially to the plurality of capacitive change cavities; and / or, the plurality of water outlets correspond at least partially to the same capacitive change cavity.

[0012] In some embodiments, the deformation rate of the flexible diaphragm is greater than or equal to 1; The initial stretch area S1 of the flexible diaphragm without stretching deformation, the stretch area S2 under initial stretching deformation, and the stretch area S3 under secondary stretching deformation satisfy the following relationship: S3>S2>S1; The ratio of S2 to S1 is greater than 1; the ratio of S3 to S1 is less than the limiting deformation rate of the flexible diaphragm.

[0013] In some embodiments, an inner pressure member is provided on the side of the flexible diaphragm facing the front; or, an inner pressure member and an outer pressure member are provided on the side of the flexible diaphragm facing the front, and the outer pressure member is provided on the outer periphery of the inner pressure member.

[0014] In some embodiments, a first seal and a second seal are provided between the front portion and the flexible diaphragm, with the first seal located on the inner edge of the second seal; the flexible diaphragm, the first seal, and the second seal are integrally formed or separately disposed.

[0015] In some embodiments, at least one pressure relief channel is provided on the front portion, the pressure relief channel being able to connect the outside and the space between the flexible diaphragm and the front portion, so that the residual pressure of the water flow after the water is turned off can be discharged through the pressure relief channel.

[0016] In some embodiments, a mesh channel is provided on the front portion, the mesh channel being used to connect each of the water outlets.

[0017] In some embodiments, the thickness of the flexible diaphragm is T, 0. <T≤1mm。

[0018] The beneficial effects of this utility model are: This application provides a water outlet device, which includes a front part, a rear part, and a flexible diaphragm disposed between the front part and the rear part. A variable cavity is formed between the front part and the rear part to allow the flexible diaphragm to undergo tensile deformation. The front part is provided with a plurality of water outlets from which water flows out of the water outlet device. In the water-off state, the flexible diaphragm undergoes at least partial initial tensile deformation and blocks the water outlets. In the water-on state, water flows into the space between the flexible diaphragm and the front part, and the flexible diaphragm undergoes secondary tensile deformation towards the rear part under the action of water pressure to disengage from the sealing fit with the water outlets.

[0019] In this application, a flexible diaphragm is positioned between the front and rear sections and can undergo at least partial initial stretching deformation to close the water outlet when the water is turned off. At this time, water inside the water outlet cannot be discharged through the outlet, preventing water from dripping out of the outlet and affecting the user experience when the water is turned off. When water is needed, the water outlet is in the open state. Water flows into the space between the flexible diaphragm and the front section, applying water pressure to the diaphragm. Due to the presence of a variable displacement cavity at the rear, the flexible diaphragm deforms towards the cavity under water pressure, creating a gap between the diaphragm and the outlet inlet. This allows the inlet to open, and water can then be discharged through the outlet, achieving the drainage operation.

[0020] In other words, the water outlet device of this application, through the variable cavity set between the front and rear parts, and the flexible diaphragm between the rear and front parts, can seal the water outlet to prevent dripping when the water is turned off, and can deform the flexible diaphragm away from the water outlet when the water is turned on, so that the flexible diaphragm can release the blockage of the water outlet and achieve water outlet, thereby realizing smooth water outlet operation when water is turned on, so as to meet the user's needs and improve the user experience. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the assembly structure of the water outlet device shown in the embodiment of this application. Figure 1 ; Figure 2 This is a schematic diagram of the assembly structure of the water outlet device shown in the embodiment of this application. Figure 2 ; Figure 3 This is a schematic diagram of the assembly structure of the water outlet device shown in the embodiment of this application. Figure 3 ; Figure 4 This is an exploded view of the water outlet device shown in the embodiment of this application; Figure 5 This is a schematic diagram of the rear structure of a water outlet device shown in an embodiment of this application. Figure 1 ; Figure 6 This is a schematic diagram of the rear structure of a water outlet device shown in an embodiment of this application. Figure 2 ; Figure 7 This is a schematic diagram of the rear structure of a water outlet device shown in an embodiment of this application. Figure 3 ; Figure 8 This is a cross-sectional view of the rear of the water outlet device shown in the embodiment of this application and a flexible diaphragm; Figure 9 This is a schematic diagram of the front structure of a water outlet device shown in an embodiment of this application. Figure 1 ; Figure 10 This is a schematic diagram of the front structure of a water outlet device shown in an embodiment of this application. Figure 2 ; Figure 11 This is a cross-sectional view of the water outlet device shown in an embodiment of this application, wherein the water outlet device is in the water-off state; Figure 12a This is a cross-sectional view of the water outlet device shown in an embodiment of this application, wherein the water outlet device is in the hot water state; Figure 12b for Figure 12a A magnified view of a portion at point A; Figure 13 This is a schematic diagram of another front section of the water outlet device shown in the embodiments of this application. Figure 1 ; Figure 14 This is a schematic diagram of another front section of the water outlet device shown in the embodiments of this application. Figure 2 ; Figure 15a This is a cross-sectional view of the water outlet device shown in the embodiment of this application during depressurization. Figure 15b for Figure 15a A magnified view of the area at point B; Figure 16 This is a partial structural diagram illustrating the positional relationship between the water outlet nozzle and the variable displacement cavity of the water outlet device shown in the embodiments of this application. Figure 1 ; Figure 17 This is a partial structural diagram illustrating the positional relationship between the water outlet nozzle and the variable displacement cavity of the water outlet device shown in the embodiments of this application. Figure 2 ; Figure 18This is a partial structural diagram illustrating the positional relationship between the water outlet nozzle and the variable displacement cavity of the water outlet device shown in the embodiments of this application. Figure 3 ; Figure 19 Another three-dimensional view of the rear of the water outlet device shown in the embodiment of this application. Figure 1 ; Figure 20 Another three-dimensional view of the rear of the water outlet device shown in the embodiment of this application. Figure 2 ; Figure 21 This is a cross-sectional view of another rear part of the water outlet device shown in an embodiment of this application.

[0023] Figure label: 100. Front section; 111. Receiving trough; 112. Mesh flow channel; 113. Sub-flow channel; 120. Outlet nozzle; 121. Inlet; 122. Outlet; 123. Outlet flow channel; 130. Pressure relief flow channel; 131. Pressure relief inlet; 132. Pressure relief outlet; 140. Pressure relief surface; 200. Rear section; 210. Water inlet channel; 220. Volumetric cavity; 230. Ventilation channel; 231. Exhaust inlet; 232. Exhaust outlet; 2 40. Surface fitting; 250. Mounting hole; 260. Water inlet assembly; 261. Water inlet ball head; 262. Ball head pressure ring; 263. Ball head pressure ring; 264. Ball head sealing ring; 265. Water supply channel; 300. Flexible diaphragm; 310. Through hole; 400. Inner pressure component; 410. Water passage; 500. Outer pressure component; 600. First seal; 700. Second seal; 810. First fastener; 820. Second fastener. Detailed Implementation

[0024] In the embodiments of this application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of that feature.

[0025] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0026] Reference Figures 1 to 21 As shown, this application provides a water outlet device, including a front part 100, a rear part 200, and a flexible diaphragm 300 disposed between the front part 100 and the rear part 200.

[0027] A capacitive cavity 220 is formed between the front part 100 and the rear part 200 to allow the flexible diaphragm 300 to undergo tensile deformation.

[0028] The front part 100 is equipped with multiple water outlet nozzles 120 for water supply and discharge devices.

[0029] When the water is turned off, the flexible diaphragm 300 undergoes at least partial initial stretching deformation and blocks the water outlet 120.

[0030] When the water is boiling, water flows into the space between the flexible diaphragm 300 and the front part 100. The flexible diaphragm 300 is at least partially subjected to water pressure and undergoes secondary stretching and deformation towards the rear part 200 to disengage from the sealing fit with the water outlet 120.

[0031] In a specific implementation, a water inlet channel 210 can be provided on the rear part 200, and a variable cavity 220 is provided between the front part 100 and the rear part 200. The variable cavity 220 can be formed by a cavity with a groove provided on the side of the rear part 200 facing the front part 100. The front part 100 is provided with a plurality of water outlets 120 for water supply, and a through hole 310 communicating with the water inlet channel 210 can be provided on the flexible diaphragm 300.

[0032] The water outlet 120 has an inlet 121 and an outlet 122 communicating with the inlet 121, and the inlet 121 corresponds to the position of the variable cavity 220.

[0033] The flexible diaphragm 300 is used to undergo initial stretching deformation and block the inlet 121 of the outlet 120 when the water outlet device is shut off. See details below. Figure 11 As shown in Figure 12. Alternatively, when the water outlet device is in the open state, it deforms towards the variable cavity 220 under the action of water flow to open the inlet 121. In specific implementation, refer to Figures 1 to 3 As shown, the front part 100 and the rear part 200 can be understood as the front and rear shells of the water outlet device, which together constitute the external structure of the water outlet device; or the front part 100 and / or the rear part 200 can be an assembly composed of one or more parts, with other structural components on their outer sides serving as the external structure. A flexible diaphragm 300 is disposed between the front part 100 and the rear part 200. Specifically, the rear part 200 can be connected to the water inlet pipe of the water outlet device, and the side of the front part 100 facing away from the rear part 200 forms the water outlet surface to drain water to the outside for user use.

[0034] Furthermore, referring to Figure 5 , Figure 6 and Figure 7 As shown, a groove is provided on the side of the rear part 200 facing the front part 100. The cavity of the groove is formed as a capacitive deformation cavity 220, which is used to provide the flexible diaphragm 300 with a deformation space that deforms under water pressure.

[0035] In specific implementation, refer to Figure 8 and Figure 11 As shown, when the water is turned off, the flexible diaphragm 300 is sandwiched between the front part 100 and the rear part 200 and undergoes initial stretching deformation to seal the inlet 121 of the water outlet 120. At this time, even if some water remains in the entire water outlet device, the remaining water cannot flow to the outlet 122 through the inlet 121, thus preventing water from dripping when the water is turned off and affecting the user's experience.

[0036] Reference Figure 12a and Figure 12b As shown, when the water is turned on, the external water flows through the inlet channel 210 and the through hole 310 into the space between the flexible diaphragm 300 and the front part 100 and applies water pressure to the flexible diaphragm 300. Since the rear part 200 is provided with a variable cavity 220, the flexible diaphragm 300 will deform towards the variable cavity 220 under the action of water pressure, so that part of the flexible diaphragm 300 corresponding to the inlet 121 is stretched and deformed into the variable cavity 220, thereby opening the inlet 121. At this time, the water in the space between the flexible diaphragm 300 and the front part 100 flows to the inlet 121 and is finally discharged through the outlet 122 of the outlet 120, realizing the drainage operation.

[0037] It should be noted that the position of the variable cavity 220 can be set to correspond to the position of the inlet 121 of the outlet 120. This setting allows the flexible diaphragm 300 corresponding to the inlet 121 to be stretched and deformed into the variable cavity 220 for a second time, so that the inlet 121 can be at least partially opened.

[0038] For example, the flexible diaphragm 300 can be a rubber sheet, a silicone sheet, or other elastic material.

[0039] For example, the water outlet device can be a shower head or a faucet.

[0040] The water outlet device of this embodiment includes a front part 100, a rear part 200, and a flexible diaphragm 300 disposed between the front part 100 and the rear part 200. A variable cavity 220 is formed between the front part 100 and the rear part 200 for the flexible diaphragm 300 to undergo tensile deformation. The front part 100 is provided with a plurality of water outlet nozzles 120 from which water flows out of the water outlet device. In the water-off state, the flexible diaphragm 300 undergoes at least a partial initial tensile deformation and blocks the water outlet nozzles 120. In the water-on state, water flows into the space between the flexible diaphragm 300 and the front part 100, and at least a portion of the flexible diaphragm 300 undergoes a secondary tensile deformation towards the rear part 200 under the action of water pressure to disengage from the sealing fit with the water outlet nozzles 120.

[0041] In this embodiment, the flexible diaphragm 300 is disposed between the front part 100 and the rear part 200 and can undergo at least partial preliminary stretching deformation when the water is turned off to close the water outlet 120. At this time, the water inside the water outlet device cannot be discharged through the water outlet 120, so as to prevent the water inside the water outlet device from still dripping out through the water outlet 120 when the water is turned off, thus affecting the user experience. When water is needed, the water outlet device is in the open state, and the water flows into the space between the flexible diaphragm 300 and the front part 100 and applies water pressure to the flexible diaphragm 300. Since the rear part 200 is provided with a variable cavity 220, the flexible diaphragm 300 will undergo secondary stretching deformation towards the variable cavity 220 under the action of water pressure, so that a gap is formed between the flexible diaphragm 300 and the inlet 121 of the water outlet 120, thereby realizing the opening operation of the inlet 121. At this time, the water can be discharged through the water outlet 120 to realize the drainage operation.

[0042] In other words, the water outlet device of this embodiment, by providing a variable cavity 220 between the front part 100 and the rear part 200, and having a flexible diaphragm 300 between the rear part 200 and the front part 100, can close the water outlet 120 through the flexible diaphragm 300 to prevent dripping when the water is turned off, and can provide water pressure to the flexible diaphragm 300 in a direction away from the water outlet 120 when the water is turned on, so that the flexible diaphragm 300 can release the blockage of the water outlet 120 to achieve water outlet, thereby realizing smooth water outlet operation when water is turned on and preventing water dripping when the water is turned off, so as to meet the user's usage needs and improve the user experience.

[0043] Reference Figures 1 to 16 As shown, in some embodiments, the rear portion 200 is provided with a conforming surface 240, the front portion 100 is provided with a compressive surface 140, and the flexible diaphragm 300 is at least partially sandwiched between the conforming surface 240 and the compressive surface 140.

[0044] This configuration can maintain a good consistency in the deformation rate value of the flexible diaphragm 300 at the corresponding positions of each capacitive cavity 220, thereby ensuring good consistency in the opening or closing operation of each inlet 121.

[0045] Reference Figure 9 , Figure 11 As shown, the inlet 121 of the water outlet 120 protrudes from the compressive surface 140 of the front part 100 to resist at least part of the flexible diaphragm 300 to undergo initial stretching deformation into the capacitive cavity 220.

[0046] In other words, referencing Figure 11 As shown, when the water outlet device is in the water-off state, the flexible diaphragm 300 will undergo initial stretching deformation under the pushing action of the inlet 121 protruding from the front part 100 of the water outlet 120. At this time, the amount of initial stretching deformation of the flexible diaphragm 300 is less than the accommodating volume of the variable cavity 220. This can play a lateral stretching role on the flexible diaphragm 300, so that the part of the flexible diaphragm 300 sandwiched between the front part 100 and the rear part 200 can be in a tensioned state, so as to better cover or close the inlet 121.

[0047] In some embodiments, the compressing surface 140 and the conforming surface 240 are arranged around the inlet 121 of the water outlet 120, or the compressing surface 140 and the conforming surface 240 can be arranged between the inlets 121 of each water outlet 120. Both arrangements can reliably clamp the flexible diaphragm 300 between the compressing surface 140 and the conforming surface 240, thereby ensuring good consistency of the deformation rate value of the flexible diaphragm 300 at the corresponding positions of each capacitive cavity 220.

[0048] In some embodiments, the conforming surface 240 and / or the compressing surface 140 are configured to adhere to and absorb the flexible membrane 300.

[0049] Specifically, the rear part 200 has a smooth conforming surface 240. When the flexible diaphragm 300 is laid on it, the flexible diaphragm 300, being relatively soft, will squeeze out the air between itself and the smooth surface during the laying process, creating a partial vacuum between them. This creates a slight self-adhesion, allowing the flexible diaphragm 300 to conform to the conforming surface 240 and adhere to itself. The unconformed parts can deform towards the capacitive cavity 220 under water pressure or a pressing action. Alternatively, the pressing surface 140 of the front part 100 can also be a smooth surface, allowing the flexible diaphragm 300 to have a slight self-adhesion when placed on the pressing surface 140 and adhere to it. The conforming surface 240 must be smooth, while the pressing surface 140 is not necessarily so. Furthermore, this conforming action is required during the assembly of the front part 100 and the rear part 200. After assembly, the clamping effect of the conforming surface 240 and the pressing surface 140 ensures that the flexible diaphragm 300 will not be easily pulled and damaged when it deforms in the area corresponding to the capacitive cavity 220.

[0050] Reference Figure 1 , Figures 5 to 8 , Figure 11 , Figure 12a , Figure 12b , Figure 15a and Figure 15b As shown, in some embodiments, a ventilation channel 230 is provided on the rear part 200, and the ventilation channel 230 connects the variable cavity 220 to the outside atmosphere.

[0051] In a specific implementation, one end of the ventilation channel 230 forms an exhaust inlet 231 that communicates with the capacity change cavity 220, and the other end of the ventilation channel 230 forms an exhaust outlet 232 that communicates with the exhaust inlet 231 and the outside atmosphere, so as to realize exhaust. This arrangement can avoid the formation of trapped air in the capacity change cavity 220, which would affect or obstruct the deformation of the flexible diaphragm 300.

[0052] Reference Figures 16 to 17 As shown, multiple water outlets 120 are provided, and one or more variable displacement cavities 220 are provided.

[0053] Each water outlet 120 is provided with at least one inlet 121 and at least one outlet 122 corresponding to each inlet 121; or, each water outlet 120 is provided with at least one inlet 121 and at least two outlets 122, wherein at least two outlets 122 share one inlet 121. Multiple water outlets 120 correspond at least partially to multiple variable displacement cavities 220; and / or, multiple water outlets 120 correspond at least partially to the same variable displacement cavity 220.

[0054] For example, refer to Figure 16 As shown, in one example, a water outlet 120 is provided with an inlet 121 and two outlets 122. At this time, the two outlets 122 share a common inlet 121, and the inlet 121 is connected to each outlet 122 to form a water flow channel 123.

[0055] For example, refer to Figure 17 As shown, in the second example, a water outlet 120 is provided with two inlets 121 and two outlets 122. At this time, one outlet 122 corresponds to one inlet 121, and the two inlets 121 are formed on a plane or curved surface on which the water outlet 120 is made and are staggered. Each inlet 121 and its corresponding outlet 122 form a water flow channel 123.

[0056] In the first example, refer to Figures 5 to 7 As shown, when multiple water outlets 120 are provided, multiple capacitive change cavities 220 are also provided, and the multiple water outlets 120 correspond at least partially to the multiple capacitive change cavities 220.

[0057] Or, in the second example, refer to Figure 18As shown, multiple water outlets 120 at least partially correspond to the same variable displacement cavity 220, as indicated. Figure 18 As shown.

[0058] Alternatively, the solutions of the first and second examples can be combined. For example, in a water outlet device, some water outlets 120 correspond to multiple capacitive change chambers 220 individually, while others have multiple water outlets 120 corresponding to one capacitive change chamber 220.

[0059] Reference Figures 19 to 21 As shown, the rear part 200 is provided with multiple columnar structures. The side of the columnar structure facing the front part 100 forms a conforming surface 240. The space between the columnar structures is connected to form a complete capacitive change cavity 220. At this time, multiple water outlets 120 can be arranged corresponding to this capacitive change cavity 220. That is, unlike the first example, in this example, the conforming surface 240 is no longer set in the form of a continuous piece, but is distributed in independent small pieces around the water outlets 120 corresponding to the front part 100. At this time, the capacitive change cavities 220 are no longer independent of each other, but interconnected. This can reduce the minimum starting water pressure for the flexible diaphragm 300 to open the water outlets 120.

[0060] Furthermore, when the variable displacement cavity 220 is set as a whole, the ventilation channel 230 can be set as one to achieve communication with the whole variable displacement cavity 220. Of course, multiple ventilation channels 230 can also be set.

[0061] Reference Figures 1 to 16 As shown, in some embodiments, the deformation rate of the region of the flexible diaphragm 300 corresponding to the variable cavity 220 is greater than or equal to 1, that is, the flexible diaphragm 300 has good deformation performance, so that it can reliably undergo initial tensile deformation under the abutment of the inlet 121 of the water outlet 120 to block the inlet 121, or it can undergo secondary tensile deformation under the action of water pressure when water is flowing to open the inlet 121.

[0062] In other words, when the flexible diaphragm 300 is not deformed, its deformation rate is 1. When the flexible diaphragm 300 undergoes initial stretching deformation under the pushing action of the inlet 121, its deformation rate is a value greater than 1, such as 1.05 or 1.1. When water flows through, it undergoes secondary stretching deformation under the action of water pressure. That is, the deformation during the secondary stretching deformation is greater than the deformation during the initial stretching deformation, so that the flexible diaphragm 300 that covers the inlet 121 during the initial stretching deformation can open the inlet 121 after the secondary stretching deformation.

[0063] The deformation rate value refers to the ratio of the extended area of ​​the flexible diaphragm 300 after deformation to the initial extended area when it is not deformed.

[0064] For example, refer to Figure 6 , Figure 8 , Figure 11 and Figure 13 As shown, the initial extension area S1 of the flexible diaphragm 300 before stretching deformation, the extension area S2 after initial stretching deformation, and the extension area S3 after secondary stretching deformation satisfy the following relationship: S3>S2>S1.

[0065] In other words, the area of ​​extension is the smallest when there is no stretching deformation. After the initial stretching deformation, a certain amount of deformation occurs, and the area of ​​extension increases. After the second stretching deformation, a certain amount of deformation occurs again, and the area of ​​extension increases further. The maximum area of ​​extension will not exceed the surface area of ​​the inner cavity of the variable cavity 220. In other words, due to the setting of the variable cavity 220, the flexible diaphragm 300 will not expand indefinitely due to the water pressure, which would lead to rupture or permanent deformation and loss of elasticity.

[0066] For example, the ratio of S2 to S1 is greater than 1 to ensure that the flexible diaphragm 300 can be tensioned to a certain extent to reliably close the inlet 121 after the initial stretching deformation, but will not separate from the inlet 121 and cause the problem of closure failure.

[0067] For example, the ratio of S2 to S1 can be 1.001, 1.005, 1.01, 1.05, 1.1, 1.2 or 2.

[0068] Furthermore, the ratio of S3 to S1 is less than the limiting deformation rate of the flexible diaphragm 300. This means that the deformation rate of the flexible diaphragm 300 after secondary tensile deformation will not exceed its limiting deformation rate. This is to avoid the problem that excessive deformation exceeding the limiting deformation rate would lead to failure of elastic recovery performance, preventing the closure of the entrance 121 after elastic reset. For example, the limiting deformation rate of silicone is generally 3-6, while that of ethylene propylene rubber is generally 2-7. Exceeding these limits may result in permanent deformation.

[0069] The limiting deformation rate value refers to the ratio of the maximum deformation extension area of ​​the flexible diaphragm 300 to the initial extension area. The maximum deformation extension area refers to the maximum amount of deformation of the flexible diaphragm 300 without breaking.

[0070] For example, since pressure equals pressure multiplied by area, the larger the projected area of ​​the variable cavity 220 on the flexible diaphragm 300, the easier it is for the flexible diaphragm 300 to deform to open the inlet 121 when water is supplied. That is, the larger the projected area, the lower the required starting water pressure value when the water outlet device supplies water.

[0071] Reference Figure 4 , Figure 8 , Figure 11 , Figure 12a , Figure 12b , Figure 15a and Figure 15b As shown, in some embodiments, the flexible diaphragm 300 is provided with an inner pressure member 400 and an outer pressure member 500 on the side facing the front portion 100. The outer pressure member 500 is disposed on the outer periphery of the inner pressure member 400 so as to press the flexible diaphragm 300 together by the inner pressure member 400 and the outer pressure member 500.

[0072] Specifically, a water passage 410 is provided at the position of the inner pressure component 400 corresponding to the through hole 310 of the flexible diaphragm 300. The water passage 410 is connected to the through hole 310, the space between the flexible diaphragm 300 and the front part 100, respectively, so as to ensure that the water can flow smoothly when the water is turned on.

[0073] For example, the inner pressure member 400 can be an inner pressure ring, which is disposed on the side of the flexible diaphragm 300 facing the front part 100 and can be connected to the rear part 200. Specifically, the inner pressure member 400 is provided with a first connecting hole, the flexible diaphragm 300 is provided with a first clearance hole, and the rear part 200 is provided with a second connecting hole. The inner pressure member 400 is connected to the rear part 200 through a first fastener 810 passing through the first connecting hole, the first clearance hole, and the second connecting hole.

[0074] For example, one of the first connecting hole and the second connecting hole can be a threaded hole and the other can be a smooth hole, and the first fastener 810 can be a screw. Alternatively, both the first connecting hole and the second connecting hole can be smooth holes, and the first fastener 810 can be a fastening pin.

[0075] For example, the connection between the inner pressure member 400 and the rear part 200 via screws is merely for enhanced protection. Alternatively, it can be placed directly between the front part 100 and the rear part 200, and the pressure from the screws securing the front part 100 and the rear part 200 can cause the inner pressure member 400 to press the flexible diaphragm 300 tightly against the rear part 200. The inner pressure ring can also be designed as an integral part of the front part 100.

[0076] For example, the external pressure member 500 can be an external pressure ring, which is disposed on the side of the flexible diaphragm 300 facing the front portion 100 and can be connected to the rear portion 200. Specifically, the external pressure member 500 is provided with a third connecting hole, the flexible diaphragm 300 is provided with a second clearance hole, and the rear portion 200 is provided with a fourth connecting hole. The external pressure member 500 is connected to the rear portion 200 through a second fastener 820 passing through the third connecting hole, the second clearance hole, and the fourth connecting hole. For example, one of the third connecting hole and the fourth connecting hole can be a threaded hole, and the other can be a smooth hole, and the second fastener 820 can be a screw. Alternatively, both the third connecting hole and the fourth connecting hole can be smooth holes, and the second fastener 820 can be a fastening pin. Since the function of the outer pressure ring is to press the flexible diaphragm 300, the position of the flexible diaphragm 300 that does not correspond to the capacitive cavity 220 will not be arbitrarily pulled and deformed during the assembly process of the entire front part 100 and the rear part 200, the outer pressure ring is optional and not necessary.

[0077] Reference Figure 4 , Figure 8 , Figure 11 , Figure 12a , Figure 12b , Figure 15a and Figure 15b As shown, in some embodiments, a first seal 600 and a second seal 700 are provided between the front portion 100 and the flexible diaphragm 300, with the first seal 600 located on the inner edge of the second seal 700, thereby ultimately allowing water to flow only within the space defined between the flexible diaphragm 300 and the front portion 100 and not to flow between the flexible diaphragm 300 and the capacitive cavity 220.

[0078] In practice, the first sealing element 600 can be formed separately from the flexible diaphragm 300, and the first sealing element 600 can be placed between the flexible diaphragm 300 and the inner pressure element 400. Alternatively, the first sealing element 600 can be integrally formed on the flexible diaphragm 300, that is, the first sealing element 600 is formed at the corresponding position on the side of the flexible diaphragm 300 facing the front 100 (in fact, the corresponding position is locally thickened), which can save manufacturing steps.

[0079] In practice, the second sealing element 700 can be formed separately from the flexible diaphragm 300, and the second sealing element 700 can be placed between the flexible diaphragm 300 and the front part 100. Alternatively, the second sealing element 700 can be integrally formed on the flexible diaphragm 300, that is, the second sealing element 700 is formed at the corresponding position on the side of the flexible diaphragm 300 facing the front part 100 (in fact, the corresponding position is locally thickened), which can save manufacturing steps.

[0080] For example, the flexible diaphragm 300 is integrally molded to save manufacturing steps and ensure the integrity of the overall structure of the flexible diaphragm 300.

[0081] Reference Figure 14 , Figure 15a and Figure 15b As shown, in some embodiments, at least one pressure relief channel 130 is provided on the front part 100. The pressure relief channel 130 can connect the outside and the space between the flexible diaphragm 300 and the front part 100 so that the residual pressure of the water flow after the water is turned off can be discharged through the pressure relief channel 130.

[0082] In a specific implementation, one end of the pressure relief channel 130 forms a pressure relief inlet 131 that is spatially connected between the flexible diaphragm 300 and the front part 100, and the other end of the pressure relief channel 130 forms a pressure relief outlet 132 that is connected to the outside and the pressure relief inlet 131.

[0083] When the water is turned off, if there is some residual water inside the water outlet device, the residual water can be quickly discharged through the pressure relief channel 130 to relieve pressure. This ensures that the flexible diaphragm 300 can quickly seal the inlet 121 of the water outlet 120 after pressure relief, thus preventing continuous dripping after the water is turned off and affecting the user experience. In addition, when the water is turned on, the pressure relief channel 130 can also be used as a water outlet channel to improve water dispensing efficiency.

[0084] For example, the pressure relief channel 130 can be configured as one, or multiple channels can be arrayed to improve water discharge efficiency or pressure relief efficiency.

[0085] In some embodiments, a mesh channel 112 is provided on the front part 100. The mesh channel 112 is used to connect each water outlet 120, so that after the water flows into the space between the flexible diaphragm 300 and the front part 100, it can be diverted to each water outlet 120 through the mesh channel 112.

[0086] Furthermore, when the internal pressure component 400 is provided, a receiving groove 111 corresponding to and communicating with the water inlet channel 210 can also be provided on the front part 100. Water first flows into the receiving groove 111 and then flows through the mesh flow channel 112 to each water outlet 120. At this time, the function of the internal pressure component 400 and the first sealing component 600 is to keep the flexible diaphragm 300 tightly attached to the rear part, so as not to allow water to flow into the capacity cavity 220.

[0087] For example, the mesh flow channel 112 may specifically include multiple sub-flow channels 113. The inlets 121 of any two adjacent water outlets 120 can be connected through a sub-flow channel 113 respectively, so as to ultimately achieve the purpose of connecting all water outlets 120.

[0088] The purpose of providing mesh flow channels 112 instead of the conventional entire water outlet cavity communicating with the water outlet nozzles 120 between the front part 100 and the rear part 200 is to reduce the volume of residual water inside the water outlet device after water shutoff, so as to ensure that the flexible membrane 300 can quickly block the inlet 121 of the water outlet nozzle 120.

[0089] In some embodiments, the thickness of the flexible membrane 300 is T, where 0 < T ≤ 1 mm. By reasonably setting the thickness of the flexible membrane 300, it is ensured that the flexible membrane 300 can reliably undergo primary tensile deformation and secondary tensile deformation, so as to ensure that the flexible membrane 300 can reliably block or unblock the water outlet nozzle 120.

[0090] For example, the thickness of the flexible membrane 300 can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, alternatively 0.5 mm or 1 mm.

[0091] Referring to Figure 1 , Figure 3 , Figure 4 , Figure 6 , as shown in the figures, in some embodiments, a mounting hole 250 is provided on the rear part 200, a water inlet assembly 260 is arranged in the mounting hole 250, and a water supply channel 265 communicating with the water inlet channel 210 is formed in the water inlet assembly 260, thereby realizing the water inlet operation into the water outlet device.

[0092] For example, the water inlet assembly 260 may specifically include a water inlet ball head 261, a ball head pressure ring 262, a ball head pressure ring 263, a ball head sealing ring 264, and the like.

[0093] Referring to Figure 4 , Figure 11 , Figure 12a , Figure 12b , as shown in the figures, in some embodiments, the front part 100 and the rear part 200 are screwed together, thereby realizing reliable connection therebetween. The screwed connection may, for example, be a connection via fasteners such as bolts, or may be a threaded connection. Specifically, the outer pressing member 500, the front part 100 and the rear part 200 may be connected by a second fastener 820 penetrating through the three members.

[0094] Alternatively, in other implementation manners, the front part 100 and the rear part 200 can be clamped and fixed by means of snaps.

[0095] In the actual assembly process, the assembly sequence and method are as follows: First, the flexible diaphragm 300 is laid flat on the conforming surface 240 of the rear part 200. Then, if a separate inner or outer pressure ring is selected, the inner or outer pressure ring is pressed onto the flexible diaphragm 300 to make it adhere tightly to the rear part 200; if there is no separate inner or outer pressure ring, the two are simply adhered by the slight adsorption generated by the air discharged after the flexible diaphragm 300 and the conforming surface 240 are bonded together. Then, the front part 100 is inserted. During this process, the inlet 121 of the water outlet 120 protrudes from the pressing surface 140 of the front part 100 and will push at least part of the flexible diaphragm 300 into the capacity cavity 220 to undergo initial stretching deformation. During this process, the part of the flexible diaphragm 300 that is attached to the outside of the capacity cavity 220 will not easily deform due to the adsorption effect of the attachment surface 240, thus ensuring the consistency of the initial stretching deformation of the flexible diaphragm 300 corresponding to each water outlet 120.

[0096] In the description of the embodiments of this application, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0097] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A water outlet device, characterized in that, It includes a front part (100), a rear part (200), and a flexible diaphragm (300) disposed between the front part (100) and the rear part (200). A variable cavity (220) is formed between the front part (100) and the rear part (200) for the flexible diaphragm (300) to undergo stretching deformation. The front part (100) is provided with a plurality of water outlets (120) from which water flows out of the water outlet device. In the water-off state, the flexible diaphragm (300) undergoes at least partial initial stretching deformation and blocks the water outlet (120). When the water is boiling, water flows into the space between the flexible diaphragm (300) and the front part (100). The flexible diaphragm (300) is subjected to water pressure and undergoes secondary stretching deformation towards the rear part (200) to disengage from the sealing fit with the water outlet (120).

2. The water outlet device according to claim 1, characterized in that, The rear portion (200) is provided with a conforming surface (240), the front portion (100) is provided with a compressive surface (140), and at least a portion of the flexible diaphragm (300) is sandwiched between the conforming surface (240) and the compressive surface (140).

3. The water outlet device according to claim 2, characterized in that, The inlet (121) of the water outlet (120) protrudes from the compressive surface (140) of the front part (100) to resist at least a portion of the flexible diaphragm (300) from undergoing initial stretching deformation into the capacitive cavity (220).

4. The water outlet device according to claim 2, characterized in that, The compressing surface (140) and the conforming surface (240) are arranged around the inlet (121) of the water outlet (120) and / or between the inlet (121) of each water outlet (120).

5. The water outlet device according to claim 2, characterized in that, The conforming surface (240) and / or the compressing surface (140) are configured to adhere and adhere to the flexible membrane (300).

6. The water outlet device according to any one of claims 1 to 5, characterized in that, At least one ventilation channel (230) is provided on the rear part (200), and the ventilation channel (230) connects the variable cavity (220) with the outside atmosphere.

7. The water outlet device according to claim 6, characterized in that, Multiple water outlets (120) are provided, and one or more variable displacement cavities (220) are provided; Each of the water outlets (120) is provided with at least one inlet (121) and at least one outlet (122) corresponding to the inlet (121); or, each of the water outlets (120) is provided with at least one inlet (121) and at least two outlets (122), and at least two outlets (122) share one inlet (121). The plurality of water outlets (120) correspond at least partially to the plurality of capacitive cavities (220); and / or, the plurality of water outlets (120) correspond at least partially to the same capacitive cavity (220).

8. The water outlet device according to any one of claims 1 to 5 or 7, characterized in that, The deformation rate of the flexible diaphragm (300) is greater than or equal to 1; The initial stretch area S1 of the flexible diaphragm (300) without stretching deformation, the stretch area S2 under preliminary stretching deformation, and the stretch area S3 under secondary stretching deformation satisfy the following relationship: S3>S2>S1; The ratio of S2 to S1 is greater than 1; The ratio of S3 to S1 is less than the limiting deformation rate of the flexible diaphragm (300).

9. The water outlet device according to any one of claims 1 to 5 or 7, characterized in that, The flexible diaphragm (300) has an inner pressure member (400) on the side facing the front part (100); or, the flexible diaphragm (300) has an inner pressure member (400) and an outer pressure member (500) on the side facing the front part (100), and the outer pressure member (500) is disposed on the outer periphery of the inner pressure member (400).

10. The water outlet device according to any one of claims 1 to 5 or 7, characterized in that, A first sealing element (600) and a second sealing element (700) are provided between the front part (100) and the flexible diaphragm (300), with the first sealing element (600) located on the inner edge of the second sealing element (700); the flexible diaphragm (300), the first sealing element (600) and the second sealing element (700) are integrally formed or separately provided.

11. The water outlet device according to any one of claims 1 to 5 or 7, characterized in that, At least one pressure relief channel (130) is provided on the front part (100). The pressure relief channel (130) can connect the outside and the space between the flexible diaphragm (300) and the front part (100) so that the residual pressure of the water flow after the water is turned off can be discharged through the pressure relief channel (130).

12. The water outlet device according to any one of claims 1 to 5 or 7, characterized in that, A mesh channel (112) is provided on the front part (100), and the mesh channel (112) is used to connect each of the water outlets (120).

13. The water outlet device according to any one of claims 1-5 or 7, characterized in that, The thickness of the flexible diaphragm (300) is T, 0 <T≤1mm。

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