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 cavity is formed on the rear part, and a front cavity is formed on the front part. A water outlet nozzle is arranged on the bottom of the front cavity to allow water to flow out of the water outlet device. In the water-off state, at least part of the flexible diaphragm is initially deformed towards the front cavity to block the front cavity, so as to avoid water dripping through the water outlet nozzle to affect the user's experience. In the water-on state, water flows into the space between the flexible diaphragm and the front part, so that at least part of the flexible diaphragm is secondarily deformed towards the variable cavity under the action of water pressure, so as to be separated from the sealing cooperation with the front cavity, and then the smooth water-out operation in the water-on state is realized, so as to meet the use demand of the user and improve the user's experience.

Description

Technical Field

[0001] This application relates to the field of water discharge equipment technology, and more particularly to a water discharge 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] This application provides 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 variable cavity is formed on the rear part, and a front cavity is formed on the front part. The bottom of the front cavity is provided with a water outlet for water to flow out of the water outlet device. When the water is turned off, at least a portion of the flexible diaphragm undergoes initial deformation toward the front cavity to seal the front cavity; When the water is boiling, water flows into the space between the flexible diaphragm and the front part, causing at least a portion of the flexible diaphragm to undergo secondary deformation towards the capacitive cavity under the action of water pressure, thereby disengaging from the sealing fit with the front cavity. In some embodiments, the rear portion has a pressing surface, the front portion has a conforming surface, and at least a portion of the flexible diaphragm is sandwiched between the pressing surface and the conforming surface.

[0006] In some embodiments, at least a protruding structure is provided on the rear portion at a position corresponding to the front cavity, and the side of the protruding structure facing the front portion forms the pressing surface to abut against at least a portion of the flexible diaphragm and cause initial deformation toward the front cavity.

[0007] In some embodiments, the protruding structure and the front cavity are provided in multiple corresponding configurations; The spaces between all the protruding structures are at least partially connected to form a through-type capacitive cavity.

[0008] In some embodiments, the conforming surface is disposed around the periphery of the front cavity or between adjacent front cavities; The pressing surfaces are spaced apart within the variable cavity.

[0009] In some embodiments, the conforming surface and / or the pressing surface are configured to adhere to and absorb the flexible diaphragm; when the water is boiling, the adhesion between the flexible diaphragm and the conforming surface is at least partially released to allow water to flow between the water outlets.

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

[0011] In some embodiments, the front cavity constitutes the inlet of the water outlet; each water outlet is provided with at least one inlet and at least one outlet corresponding to the inlet; Alternatively, each of the water outlets is provided with at least one water inlet and at least two water outlets, with at least two water outlets sharing one water inlet; There are multiple water outlets and one or more capacity-varying cavities, with at least a portion of the multiple water outlets corresponding to the same capacity-varying cavity.

[0012] In some embodiments, the initial deformation and secondary deformation of the flexible diaphragm are both tensile deformations, and the deformation rate of the flexible diaphragm is greater than or equal to 1. The initial stretch area S1 of the flexible diaphragm before stretching deformation, the stretch area S2 after initial stretching deformation, and the stretch area S3 after 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, the side of the flexible diaphragm facing the front is provided with an internal pressure member.

[0014] In some embodiments, a first seal and a second seal are provided between the front portion or the rear portion and the flexible diaphragm, the first seal being located at the inner edge of the second seal, so as to allow water to flow within the space defined by the flexible diaphragm and the front portion; The flexible diaphragm, the first seal, and the second seal are either integrally formed or separately configured.

[0015] In some embodiments, at least one pressure relief channel is provided on the front part, which can connect the outside and the space between the front part and the rear part, 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, the thickness of the flexible diaphragm is T, 0. <T≤1mm。

[0017] The beneficial effects of this utility model are: This application provides 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 capacity-varying cavity is formed on the rear part, and a front cavity is formed on the front part. A water outlet nozzle is provided at the bottom of the front cavity for water to flow out of the water outlet device. In the water-off state, at least a portion of the flexible diaphragm undergoes initial deformation towards the front cavity to seal it. In the water-on state, water flows into the space between the flexible diaphragm and the front part, causing at least a portion of the flexible diaphragm to undergo secondary deformation towards the capacity-varying cavity under water pressure, thereby disengaging from the sealing fit with the front cavity. In this application, a flexible diaphragm is positioned between the front and rear sections and can undergo initial deformation, at least partially facing the front cavity, to close the front cavity when the water is turned off, thereby sealing the water outlet. At this time, water inside the water outlet cannot be discharged through the outlet, preventing water from dripping out 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 undergoes secondary deformation towards the cavity under water pressure, creating a gap between the diaphragm and the front cavity. This allows the water outlet to open, enabling water to drain.

[0018] In other words, the water outlet device of this application has a variable cavity at the rear and a front cavity at the front, with a flexible diaphragm between the rear and the front. Therefore, when the water is turned off, the flexible diaphragm can deform initially in the front cavity to close the front cavity and then close the water outlet to prevent dripping. When the water is turned on, the water can provide pressure to the flexible diaphragm in a direction away from the water outlet, causing the flexible diaphragm to release the blockage of the front cavity and allow water to flow out. This achieves smooth water flow when the water is turned on, meets the user's needs, and improves the user experience. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is an exploded schematic diagram of the water outlet device shown in the embodiment of this application; Figure 2This is a schematic diagram of the external structure of the water outlet device shown in the embodiment of this application. Figure 1 ; Figure 3 This is a schematic diagram of the external structure of the water outlet device shown in the embodiment of this application. Figure 2 ; Figure 4 This is a schematic diagram of the front structure of the water outlet device shown in the embodiment of this application. Figure 1 ; Figure 5 This is a schematic diagram of the front structure of the water outlet device shown in the embodiment of this application. Figure 2 ; Figure 6 This is a schematic diagram of the front structure of the water outlet device shown in the embodiment of this application. Figure 3 ; Figure 7 This is a schematic diagram of the rear structure of the water outlet device shown in the embodiment of this application. Figure 1 ; Figure 8 This is a schematic diagram of the rear structure of the water outlet device shown in the embodiment of this application. Figure 2 ; Figure 9 This is a schematic diagram of the rear structure of the water outlet device shown in the embodiment of this application. Figure 3 ; Figure 10 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 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 hot water state; Figure 12 for Figure 11 A magnified view of a portion at point A; Figure 13 This is a cross-sectional view of the water outlet device shown in the embodiment of this application, wherein the water outlet device is in a water shut-off and pressure relief state; Figure 14 for Figure 13 A magnified view of the area at point B; Figure 15 This is a partial assembly diagram of the front, rear, and flexible diaphragm of the water outlet device shown in the embodiments of this application.

[0021] Figure label: 100. Front section; 110. Front cavity; 120. Water outlet; 122. Water outlet; 130. Fitting surface; 140. Pressure relief channel; 141. Pressure relief inlet; 142. Pressure relief outlet; 200. Rear section; 210. Capacitive cavity; 220. Pressing surface; 230. Protruding structure; 240. Ventilation channel; 250. Water inlet channel; 300. Flexible diaphragm; 310. Through hole; 400. Internal pressure component; 410. Water passage channel; 500. First seal; 600. Second seal; 700. Water inlet assembly; 710. Water inlet ball head; 720. Ball head pressure ring; 730. Ball head pressure ring; 740. Ball head sealing ring; 800. Fastener. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] Reference Figures 1 to 15 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. A variable cavity 210 is formed on the rear part 200, and a front cavity 110 is formed on the front part 100. A water outlet 120 for water to flow out is provided at the bottom of the front cavity 110. When the water is turned off, at least a portion of the flexible diaphragm 300 undergoes initial deformation toward the front cavity 110 to seal the front cavity 110. When the water is boiling, water flows into the space between the flexible diaphragm 300 and the front part 100, so that at least part of the flexible diaphragm 300 is subjected to water pressure and undergoes secondary deformation toward the capacitive deformation cavity 210, thereby disengaging from the sealing fit with the front cavity 110. In a specific implementation, a water inlet channel 250 can be provided on the rear part 200, and a variable cavity 210 can be provided on the side of the rear part 200 facing the front part 100. A plurality of front cavities 110 with openings facing the rear part 200 can be provided on the side of the front part 100 facing the rear part 200. A water outlet 120 for water supply is provided at the bottom of each front cavity 110, and a through hole 310 communicating with the water inlet channel 250 can be provided on the flexible diaphragm 300.

[0025] The "bottom of the cavity" here refers to the side of the front cavity 110 that is away from the rear 200. The front cavity 110 and the water outlet 120 are connected to form a water outlet channel. That is, the front cavity 110 is the inlet of the water outlet 120. By closing the front cavity 110, the entire water outlet channel can be closed, that is, the water outlet 120 can be closed. Similarly, by opening the front cavity 110, the entire water outlet channel can be opened. At this time, the water outlet 120 is unsealed and water can flow.

[0026] The flexible diaphragm 300 is used to initially deform towards the front cavity 110 and seal the front cavity 110 when the water outlet device is shut off, thereby achieving the function of sealing the water outlet 120. See details. Figure 10 As shown. Alternatively, when the water outlet device is in the hot water state, it undergoes secondary deformation towards the variable cavity 210 under the action of water flow to open the front cavity 110, thereby achieving the function of opening the water outlet 120. See the specific details. Figure 11 and Figure 12 As shown. 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 are connected by fasteners 800 and form 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. For example, the front part 100 can be composed of a soft rubber spout and other hard rubber materials. The front part 100 and / or the rear part 200 are internal components, and other structural components can be added to their outer surfaces to serve 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.

[0027] In specific implementation, refer to Figure 10 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 deformation towards the front cavity 110 to seal the front cavity 110, thereby sealing the water outlet 120. At this time, even if some water remains in the entire water outlet device, the remaining water cannot be discharged through the water outlet 120, thus preventing water from dripping when the water is turned off and affecting the user experience.

[0028] Reference Figure 1 , Figure 11 and Figure 12 As shown, when the water is turned on, the external water flows through the inlet channel 250 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 210, at least a part of the flexible diaphragm 300 will undergo secondary deformation towards the variable cavity 210 under the action of water pressure. This causes a part of the flexible diaphragm 300 corresponding to the front cavity 110 to undergo secondary deformation into the variable cavity 210, thereby opening the front cavity 110 and then opening the water outlet 120. At this time, the water in the space between the flexible diaphragm 300 and the front part 100 flows into the front cavity 110 and then flows to the water outlet 120, and finally is discharged through the water outlet 120, thus realizing the drainage operation.

[0029] For example, the flexible diaphragm 300 can be a rubber sheet, a silicone sheet, or other elastic material.

[0030] For example, the water outlet device can be a shower head or a faucet.

[0031] In this embodiment, the water outlet device has a flexible diaphragm 300 disposed between the front part 100 and the rear part 200. When the water is turned off, it can undergo initial deformation at least partially towards the front cavity 110 of the front part 100 to close the front cavity 110, and then close the water outlet 120 disposed at the bottom of the front cavity 110. 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's experience.

[0032] When water is needed, the water outlet is in the open state. Water flows into the space between the flexible diaphragm 300 and the front part 100, applying water pressure to the flexible diaphragm 300. Because the rear part 200 has a variable cavity 210, the flexible diaphragm 300 undergoes secondary deformation under the water pressure, creating a gap between the flexible diaphragm 300 and the front cavity 110. This allows the front cavity 110 to open, thereby opening the water outlet 120. Water can then be discharged through the water outlet 120, achieving drainage. The specific drainage path can be found in [reference needed]. Figure 11 and Figure 12 As shown.

[0033] In other words, the water outlet device of this embodiment has a variable cavity 210 in the rear part 200 and a front cavity 110 in the front part 100. A flexible diaphragm 300 is provided between the rear part 200 and the front part 100. Therefore, when the water is turned off, the flexible diaphragm 300 can undergo initial deformation in the front cavity 110 to close the front cavity 110 and then close the water outlet 120 to prevent dripping. When the water is turned on, the water can provide pressure to the flexible diaphragm 300 in a direction away from the water outlet 120, so that the flexible diaphragm 300 releases the closure of the front cavity 110 and then releases the blockage of the water outlet 120 to achieve water outlet. In this way, smooth water outlet operation can be achieved when water is turned on, so as to meet the user's needs and improve the user experience.

[0034] In addition, the entire water outlet device has a simple structure, low cost, and wide applicability. It can be applied to various types of water outlet equipment and can be designed in a small size.

[0035] Reference Figures 7 to 9 As shown, in some embodiments, a pressing surface 220 is provided on the rear portion 200, and a conforming surface 130 is provided on the front portion 100, with at least a portion of the flexible diaphragm 300 sandwiched between the pressing surface 220 and the conforming surface 130.

[0036] This configuration can maintain a good consistency in the deformation rate value of the flexible diaphragm 300 at the corresponding positions of each front cavity 110, thereby ensuring good consistency in the opening or closing operation of each front cavity 110.

[0037] It should be noted that, in the water-off state, theoretically, at least part of the front cavity 110 is separated by the contact state of the flexible diaphragm 300 and the contact surface 130, meaning that the front cavities 110 are not interconnected. This arrangement ensures that very little residual water remains in the water outlet device after the water is turned off, facilitating rapid water shut-off. When water is turned on, the flexible diaphragm 300 separates from the contact surface 130, and only then do the front cavities 110 or the water outlets 120 become interconnected.

[0038] Reference Figures 7 to 9 As shown, in some embodiments, at least a protruding structure 230 is provided on the rear part 200 at a position corresponding to the front cavity 110. The side of the protruding structure 230 facing the front part 100 forms a pressing surface 220 to abut against at least a portion of the flexible diaphragm 300 and cause initial deformation towards the front cavity 110.

[0039] In other words, when the water outlet device is in the water-off state, the flexible diaphragm 300 will undergo initial deformation towards the front cavity 110 under the pushing action of the protruding structure 230, thereby reliably sealing the water outlet 120 at the bottom of the front cavity 110 and preventing residual water from being discharged.

[0040] For example, the protruding structure 230 can be a protruding post or extension rod protruding in the direction of the front part 100. The protruding structure 230 can be integrally formed on the rear part 200 to save manufacturing processes and improve the overall structural strength of the rear part 200. Alternatively, the protruding structure 230 can be glued or snapped onto the rear part 200.

[0041] Reference Figures 4 to 9 As shown, in some embodiments, the conforming surface 130 and / or the pressing surface 220 are configured to adhere to and absorb the flexible diaphragm 300. When the water is hot, the adhesion between the flexible diaphragm 300 and the conforming surface 130 is at least partially released to allow water to flow between the outlets 120, thereby facilitating drainage.

[0042] Specifically, the front part 100 is provided with a smooth conforming surface 130. When the flexible diaphragm 300 is laid on it, the flexible diaphragm 300 is relatively soft. During the laying process, the air between it and the smooth surface will be squeezed out, and a partial vacuum state will be generated between the two. It has slight self-adhesion, so that the flexible diaphragm 300 can conform to the conforming surface 130 and conform to each other. The unconformed part can deform towards the capacity cavity 210 or the front cavity 110 under the action of water pressure or the action of pushing.

[0043] Furthermore, the pressing surface 220 of the rear part 200 can also be made into a smooth surface, so that the flexible diaphragm 300 has slight self-adhesion when placed on the pressing surface 220. The conforming surface 130 is provided so that when the flexible diaphragm 300 deforms at the position corresponding to the front cavity 110, the conforming state between the flexible diaphragm 300 and the conforming surface 130 will not be easily pulled and broken. The part that is not in contact with the conforming surface 130 can undergo preliminary deformation in the front cavity 110 to close the front cavity 110. The conforming surface 130 must be smooth, and this conforming effect is required when the front part 100 and the rear part 200 are assembled. After assembly, the clamping effect of the conforming surface 130 and the pressing surface 220 ensures that the flexible diaphragm 300 will not be easily pulled and broken when it deforms in the area corresponding to the capacitive cavity 210 and the area corresponding to the front cavity 110.

[0044] Reference Figure 7 As shown, in some embodiments, the protruding structures 230 and the front cavity 110 are provided in multiple corresponding configurations, and the spaces between all the protruding structures 230 are at least partially connected to form a through-type variable cavity 210.

[0045] In other words, referencing Figure 7As shown, the rear part 200 has multiple arrayed protruding structures 230 on the side facing the front part 100. The side of all the protruding structures 230 facing the front part 100 forms a pressing surface 220 to push against the flexible diaphragm 300 and cause initial deformation in the front cavity 110 to block the front cavity 110 and thus close the water outlet 120. At least part of the gaps or spaces between all the protruding structures 230 form a complete capacitive cavity 210. That is, the capacitive cavity 210 in this embodiment is itself a large and complete space, and the protruding structures 230 are spaced apart in this space. This can reduce the minimum starting water pressure for the flexible diaphragm 300 to open the water outlet 120.

[0046] At the same time, multiple front cavities 110 and water outlets 120 are configured to achieve shower-style water output.

[0047] Reference Figure 7 As shown, in some embodiments, the conforming surface 130 is arranged around the periphery of the front cavity 110 or between adjacent front cavities 110, and the pressing surface 220 is arranged at intervals in the capacity cavity 210. Both can reliably clamp the flexible diaphragm 300 between the pressing surface 220 and the conforming surface 130, so as to ensure that the deformation rate value of the flexible diaphragm 300 at the corresponding positions of each front cavity 110 is relatively consistent.

[0048] Reference Figure 8 As shown, in some embodiments, at least one ventilation channel 240 is provided on the front part 100 or the rear part 200, and the ventilation channel 240 connects the variable cavity 210 to the outside atmosphere.

[0049] In a specific implementation, the ventilation channel 240 can be set on the rear part 200. One end of the ventilation channel 240 forms an exhaust inlet that communicates with the capacity deformation cavity 210, and the other end of the ventilation channel 240 forms an exhaust outlet that communicates with the exhaust inlet and the outside atmosphere to achieve exhaust. This setting can avoid the formation of trapped air in the capacity deformation cavity 210, which would affect or obstruct the deformation of the flexible diaphragm 300.

[0050] In some other embodiments, the ventilation channel 240 may also be provided on the front 100, and the ventilation channel 240 connects the variable cavity 210 to the outside atmosphere through a simple channel transition.

[0051] In practice, one end of the venting channel 240 forms an exhaust inlet communicating with the capacity variation chamber 210, and the other end forms an exhaust outlet communicating with the outside atmosphere. Both ends are connected to the flexible diaphragm 300 to facilitate venting (the portion of the flexible diaphragm 300 not connected by the venting channel 240 must still maintain a seal with the rear 200 or front 100). This design prevents trapped air from affecting or obstructing the deformation of the flexible diaphragm 300. This design also has an additional benefit: when the flexible diaphragm 300 ruptures and water leaks into the capacity variation chamber 210, the leaked water can flow out through the exhaust outlet. The exhaust outlet is adjacent to the water outlet 120, preventing the user from noticing a leak and thus ensuring usability.

[0052] Reference Figure 5 , Figure 6 and Figure 15 As shown, in some embodiments, the front cavity 110 constitutes the inlet of the spout 120. Each spout 120 is provided with at least one inlet and at least one outlet 122 corresponding to the inlet; Alternatively, each water outlet 120 may be provided with at least one water inlet and at least two water outlets 122, with at least two water outlets 122 sharing one water inlet; There are multiple water outlets 120 and one or more capacity-varying cavities 210, with at least some of the multiple water outlets 120 corresponding to the same capacity-varying cavity 210.

[0053] For example, refer to Figure 5 and Figure 6 As shown, in one example, a water outlet 120 is provided with an inlet and an outlet 122, and the inlet and outlet 122 are connected to form a water flow channel, that is, a front cavity 110 corresponds to an outlet 122.

[0054] For example, refer to Figure 15 As shown, in the second example, for instance, a water outlet 120 is provided with one inlet and two outlets 122. In this case, the two outlets 122 share one inlet, and the inlet and each outlet 122 are connected to form a water flow channel. That is, one front cavity 110 corresponds to two outlets 122.

[0055] Reference Figures 4 to 9 As shown, when multiple water outlets 120 are provided, the capacity variation cavity 210 is one, and the multiple water outlets 120 correspond at least partially to the same capacity variation cavity 210.

[0056] Reference Figures 7 to 9As shown, the rear part 200 has multiple arrayed protruding structures 230 on the side facing the front part 100. All the protruding structures 230 on the side facing the front part 100 form a pressing surface 220. The spaces between all the protruding structures 230 are interconnected to form a capacitive variation cavity 210. At this time, multiple water outlets 120 can be correspondingly set to this capacitive variation cavity 210. That is, the pressing surface 220 is not set in a continuous piece, but rather as independent small pieces distributed on the rear part 200. In this case, the capacitive variation cavities 210 are interconnected, which can reduce the minimum starting water pressure required for the flexible diaphragm 300 to open the water outlets 120.

[0057] Furthermore, when the variable displacement cavity 210 is set as a whole, the ventilation channel 240 can be set as one to achieve communication with the whole variable displacement cavity 210. Of course, multiple ventilation channels 240 can also be set.

[0058] In some embodiments, the initial deformation and secondary deformation of the flexible diaphragm 300 are both tensile deformations, and 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 before stretching deformation, the stretch area S2 after initial stretching deformation, and the stretch area S3 after 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. The thickness of the flexible diaphragm 300 is T, 0 <T≤1mm。

[0059] In other words, the extended area is minimal before stretching. After initial stretching, a certain amount of deformation occurs, increasing the extended area. After a second stretching, another amount of deformation occurs, further increasing the extended area. However, the maximum extended area will not exceed the surface area of ​​the inner cavity of the capacitive deformation cavity 210. This means that the capacitive deformation cavity 210 prevents the flexible diaphragm 300 from expanding indefinitely under water pressure, thus preventing rupture or permanent deformation and loss of elasticity. It is worth noting that in the deformation of the flexible diaphragm 300, whether bending or stretching, at least some stretching deformation occurs. During bending, the inner surface may undergo compressive deformation, while the outer surface undergoes stretching deformation, even if this stretching deformation is very small.

[0060] For example, the ratio of S2 to S1 is greater than 1 to ensure that the flexible diaphragm 300 can deform to a certain extent after the initial stretching deformation to reliably seal the front cavity 110, but will not separate from the front cavity 110 and cause the sealing failure problem.

[0061] Exemplarily, the ratio of S2 to S1 may be 1.001, 1.005, 1.01, 1.05, 1.1, 1.2 or 2.

[0062] In addition, the ratio of S3 to S1 is smaller than the ultimate deformation rate value of the flexible diaphragm 300. That is to say, the deformation rate value of the flexible diaphragm 300 after secondary tensile deformation will not be greater than the ultimate deformation rate value of the flexible diaphragm 300, so as to avoid the problem that when the deformation is too large and exceeds the ultimate deformation rate value, the elastic recovery performance will fail and the front cavity 110 cannot be closed after elastic reset again. For example, the ultimate deformation rate value of silica gel material is generally 3-6, and the ultimate deformation rate value of ethylene-propylene rubber is generally 2-7, and exceeding this limit may lead to permanent deformation.

[0063] The ultimate deformation rate value refers to the ratio of the maximum deformed extension area of the flexible diaphragm 300 to the initial extension area, and the maximum deformed extension area refers to the maximum deformation amount of the flexible diaphragm 300 without fracture.

[0064] Exemplarily, since pressure equals pressure intensity multiplied by area, the larger the projection area of the variable volume cavity 210 on the flexible diaphragm 300, the more easily the flexible diaphragm 300 deforms to open the front cavity 110 when water flows through, that is, the larger the projection area, the lower the required starting water pressure value when the water outlet device is filled with water. Therefore, in this embodiment, the variable volume cavity 210 is set as a through integral structure, which can more effectively reduce the starting water pressure, making the water opening operation of the water outlet device easier.

[0065] In some embodiments, the thickness of the flexible diaphragm 300 is T, 0<T≤1mm. By reasonably setting the thickness of the flexible diaphragm 300, it is ensured that the flexible diaphragm 300 can reliably undergo primary tensile deformation and secondary tensile deformation, so as to ensure that it can reliably block or unblock the water outlet nozzle 120.

[0066] Exemplarily, the thickness of the flexible diaphragm 300 may be 0.1mm, 0.2mm, 0.3mm, 0.4mm, or may be 0.5mm or 1mm.

[0067] Refer to Figure 1 , Figure 14 as shown, in some embodiments, an inner pressing member 400 is disposed on the side of the flexible diaphragm 300 facing the front part 100.

[0068] Specifically, a water passage 410 is provided at the position of the inner pressing member 400 corresponding to the through hole of the flexible diaphragm 300. The water passage 410 is respectively communicated with the through hole 310 and the space between the flexible diaphragm 300 and the front part 100, so as to ensure that water can flow smoothly when the water is turned on.

[0069] 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 portion 100 and can be connected to the rear portion 200. (See reference...) Figure 1 , Figures 10 to 14 As shown, in some embodiments, a first seal 500 and a second seal 600 are provided between the rear portion 200 and the flexible diaphragm 300. The first seal 500 is located at the inner edge of the second seal 600, so that water can flow within the space defined by the flexible diaphragm 300 and the front portion 100. The above solution is an example of the optimal solution. In addition, the two seals can also be provided between the front portion 100 and the flexible diaphragm 300, with the same function, and will not be described in detail below.

[0070] The flexible diaphragm 300, the first seal 500, and the second seal 600 are either integrally formed or separately configured.

[0071] In practice, the first sealing element 500 can be formed separately from the flexible diaphragm 300, and the first sealing element 500 can be placed between the flexible diaphragm 300 and the rear part 200. Alternatively, the first sealing element 500 can be integrally formed on the flexible diaphragm 300, that is, the first sealing element 500 is formed at the corresponding position on the side of the flexible diaphragm 300 facing the rear part 200 (in fact, the corresponding position is locally thickened), which can save manufacturing steps.

[0072] In practice, the second sealing element 600 can be formed separately from the flexible diaphragm 300, and the second sealing element 600 can be placed between the flexible diaphragm 300 and the rear part 200. Alternatively, the second sealing element 600 can be integrally formed on the flexible diaphragm 300, that is, the second sealing element 600 is formed at the corresponding position on the side of the flexible diaphragm 300 facing the rear part 200 (in fact, the corresponding position is locally thickened), which can save manufacturing steps.

[0073] 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.

[0074] Thus, the inner pressure component 400 serves two functions: 1. to facilitate the pressure and sealing between the flexible diaphragm 300 and the rear part 200; 2. to work together with the front part 100 to define a water flow channel connecting the water passage 410 to the space between the front part 100 and the flexible diaphragm 300, so that water can be discharged from the outlet 120, specifically as follows: Figure 12 As shown. In specific implementations, there are other embodiments, such as making the inner pressure component 400 and the front part 100 integrally formed, which can achieve the two functions mentioned above.

[0075] Reference Figure 12 and Figure 13As shown, in some embodiments, at least one pressure relief channel 140 is provided on the front part 100. The pressure relief channel 140 can connect to the outside and the space between the front part 100 and the rear part 200, so that the residual pressure of the water flow after the water is turned off can be discharged through the pressure relief channel 140. At this time, the water outlet device is in a state of... Figure 13 The water pressure is turned off and the pressure is released, as shown.

[0076] In a specific implementation, one end of the pressure relief channel 140 forms a pressure relief inlet 141 that communicates with the space between the rear part 200 and the front part 100, and the other end of the pressure relief channel 140 forms a pressure relief outlet 142 that communicates with the outside and the pressure relief inlet 141. That is, the pressure relief outlet 142 of the pressure relief channel 140 is not provided with a flexible diaphragm 300, but is provided with a corresponding through hole 310 on the flexible diaphragm 300.

[0077] 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 140 to relieve pressure. This ensures that the flexible diaphragm 300 can quickly seal the front cavity 110 after pressure relief, thereby sealing the water outlet 120 and preventing continuous dripping after the water is turned off, which would affect the user experience. Furthermore, when the water is turned on, the pressure relief channel 140 can also be used as a water outlet channel to improve water dispensing efficiency. The specific pressure relief path can be found in [reference needed]. Figure 13 and Figure 14 As shown.

[0078] For example, the pressure relief channel 140 can be configured as a single channel, or multiple channels can be arrayed to improve water output efficiency or pressure relief efficiency. It is even possible to arbitrarily select some water outlets 120 without a pressure-fitting surface 220 at their corresponding positions, so that they do not close when the water is turned off, thus allowing them to function as pressure relief channels.

[0079] Reference Figure 1 , Figure 2 As shown, in some embodiments, a mounting hole is provided on the rear part 200, and a water inlet component 700 is provided in the mounting hole. A water supply channel communicating with the water inlet channel 250 is formed in the water inlet component 700, thereby realizing the operation of water entering the water outlet device.

[0080] For example, the water inlet assembly 700 may specifically include a water inlet ball head 710, a ball head pressure ring 720, a ball head pressure ring 730, and a ball head sealing ring 740, etc.

[0081] In the actual assembly process, the assembly sequence and method are as follows: First, the flexible diaphragm 300 is laid flat on the contact surface 130 of the front part 100. The two are adhered by the slight adsorption generated by the air discharged after the flexible diaphragm 300 and the contact surface 130 are attached. Then, the rear part 200 is assembled. During this process, the pressing surface 220 of the protruding structure 230 will press against at least part of the flexible diaphragm 300 and cause initial stretching deformation into the front cavity 110. During this process, the other parts of the flexible diaphragm 300 attached to the contact surface 130 will not easily deform due to the adsorption effect of the contact surface 130, ensuring the consistency of the initial stretching deformation of the flexible diaphragm 300 corresponding to each nozzle 120.

[0082] 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.

[0083] 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 (210) is formed on the rear part (200), and a front cavity (110) is formed on the front part (100). The bottom of the front cavity (110) is provided with a water outlet (120) for water to flow out of the water outlet device. When the water is turned off, at least a portion of the flexible diaphragm (300) undergoes initial deformation toward the front cavity (110) to seal the front cavity (110). When the water is boiling, water flows into the space between the flexible diaphragm (300) and the front part (100), so that at least a portion of the flexible diaphragm (300) is subjected to water pressure and undergoes secondary deformation toward the capacitive cavity (210) to disengage from the sealing fit with the front cavity (110).

2. The water outlet device according to claim 1, characterized in that, The rear portion (200) is provided with a pressing surface (220), the front portion (100) is provided with a conforming surface (130), and at least a portion of the flexible film (300) is sandwiched between the pressing surface (220) and the conforming surface (130).

3. The water outlet device according to claim 2, characterized in that, At least a portion of the rear portion (200) is provided with a protruding structure (230) at a position corresponding to the front cavity (110). The side of the protruding structure (230) facing the front portion (100) forms the pressing surface (220) to abut against at least a portion of the flexible diaphragm (300) and cause initial deformation towards the front cavity (110).

4. The water outlet device according to claim 3, characterized in that, The protruding structure (230) and the front cavity (110) are both provided in multiple corresponding configurations; The spaces between all the protruding structures (230) are at least partially connected to form the through-type variable cavity (210).

5. The water outlet device according to any one of claims 2-4, characterized in that, The conforming surface (130) is disposed on the periphery of the front cavity (110) or between adjacent front cavities (110); The pressing surfaces (220) are spaced apart within the variable cavity (210).

6. The water outlet device according to claim 5, characterized in that, The conforming surface (130) and / or the pressing surface (220) are configured to adhere to and absorb the flexible membrane (300); when the water is boiling, the adhesion between the flexible membrane (300) and the conforming surface (130) is at least partially released so that water can flow between the water outlets (120).

7. The water outlet device according to any one of claims 1 to 4, 6, characterized in that, At least one ventilation channel (240) is provided on the front part (100) or the rear part (200), and the ventilation channel (240) connects the variable cavity (210) with the outside atmosphere.

8. The water outlet device according to claim 7, characterized in that, The front cavity (110) forms the inlet of the water outlet (120), and each water outlet (120) is provided with at least one inlet and at least one outlet (122) corresponding to the inlet. Alternatively, each of the water outlets (120) is provided with at least one water inlet and at least two water outlets (122), and at least two of the water outlets (122) share one water inlet; There are multiple water outlets (120) and one or more capacitive change cavities (210), with at least a portion of each of the multiple water outlets (120) corresponding to the same capacitive change cavity (210).

9. The water outlet device according to any one of claims 1 to 4, 6, and 8, characterized in that, The initial deformation and secondary deformation of the flexible diaphragm (300) are both tensile deformations, and 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) before stretching deformation, the stretch area S2 after preliminary stretching deformation, and the stretch area S3 after 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).

10. The water outlet device according to any one of claims 1 to 4, 6, and 8, characterized in that, The flexible diaphragm (300) has an inner pressure member (400) on the side facing the front (100).

11. The water outlet device according to claim 9, characterized in that, A first seal (500) and a second seal (600) are provided between the front part (100) or the rear part (200) and the flexible diaphragm (300). The first seal (500) is located on the inner edge of the second seal (600) so that water can flow in the space defined by the flexible diaphragm (300) and the front part (100). The flexible diaphragm (300), the first seal (500) and the second seal (600) are either integrally formed or separately disposed.

12. The water outlet device according to any one of claims 1 to 4, 6, 8, and 11, characterized in that, At least one pressure relief channel (140) is provided on the front part (100), and the pressure relief channel (140) can connect the outside and the space between the front part (100) and the rear part (200) so that the residual pressure of the water flow after the water is turned off can be discharged through the pressure relief channel (140).

13. The water outlet device according to claim 12, characterized in that, The thickness of the flexible diaphragm (300) is T, 0 <T≤1mm。

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