A water outlet device

Abstract

The application discloses a water outlet device, which is provided with a water outlet flow channel. The water outlet flow channel is provided with a vortex cavity and a gas-water mixing cavity along a water outlet direction. The gas-water mixing cavity is communicated with the atmosphere through a bypass gas channel. The vortex cavity is communicated with the gas-water mixing cavity through a center hole and at least two first holes which are uniformly distributed along a circumferential direction around the center hole. By adopting the above structure, compared with the prior art, the water outlet device can stably inhale air, is not easy to be flocculated and jump, and can output stable bubble water.

Description

Technical Field

[0001] This application relates to the field of water discharge devices. Background Technology

[0002] Existing technologies already exist that generate vortex water flow through a vortex cavity and inject air bubbles into the vortex water flow through a gas-water mixing cavity. This technology creates a pressure drop by draining water through a small hole at the bottom of the vortex cavity, forming a negative pressure zone that draws in air to generate gas-liquid mixed bubble water. However, the bubble vortex water flow generated in this way has poor stability, the outflowing water is prone to turbulence and jumping, and it is impossible to output stable bubble water. Summary of the Invention

[0003] The purpose of this application is to overcome the aforementioned defects or problems in the prior art and to provide a water outlet device that enables the swirling water output through the vortex cavity to stably absorb air, making it less prone to turbulence and agitation, thereby outputting stable bubble water.

[0004] To achieve the above objectives, the following technical solution is adopted:

[0005] A water outlet device is provided with a water outlet channel, wherein the water outlet channel is provided with a vortex cavity and a gas-water mixing cavity along the water outlet direction; the gas-water mixing cavity is connected to the atmosphere through a bypass gas channel; the vortex cavity is connected to the gas-water mixing cavity through a central hole and at least two first holes evenly distributed around the central hole in a circumferential direction.

[0006] Furthermore, the number of the first holes is an even number.

[0007] Furthermore, the number of bypass airways is equal to the number of the first holes, and they are connected to the first holes one by one.

[0008] Furthermore, the bypass airway is radially connected to the corresponding first hole.

[0009] Furthermore, the aspect ratio of the central hole and the first hole is not less than 1.8:1.

[0010] Furthermore, the vortex cavity is bowl-shaped, and the central hole and each of the first holes are located at the bottom of the vortex cavity.

[0011] Furthermore, at least a portion of the water flow is injected into the vortex cavity in a direction with a tangential component.

[0012] Furthermore, the direction in which the water flow with a tangential component is injected into the vortex cavity is perpendicular to the water outlet direction.

[0013] Furthermore, at least a portion of the water is injected into the vortex cavity in the outflow direction and directly towards the central hole.

[0014] Furthermore, the water outlet channel is also provided with a water outlet cavity located downstream of the air-water mixing cavity; a first mesh structure and a second mesh structure are arranged in the water outlet cavity along the water outlet direction; the mesh size of the first mesh structure is larger than that of the second mesh structure; a first gap is provided between the first mesh structure and the second mesh structure.

[0015] Furthermore, the water outlet cavity is also provided with a third mesh structure located within the second mesh structure; a second gap is provided between the second mesh structure and the third mesh structure.

[0016] Compared with existing technologies, the above solution has the following beneficial effects:

[0017] In existing technologies, vortex chambers output swirling water through a single, large-diameter central hole located at the bottom of the chamber along the water outlet direction. Because the flow rate must be maintained, the diameter of this central hole is relatively large. However, due to the influence of the vortices, the outflowing water becomes turbulent, failing to achieve optimal air intake, and the outflow is agitated, preventing the output of stable bubble water. In this application, a first hole is evenly distributed around the central hole, thereby constraining the vortices while ensuring a certain water outlet area and flow rate. More importantly, the constrained swirling water output from the central hole and the first hole interacts, significantly improving the air intake effect of the output water flow, and eliminating the agitation of the water flow, resulting in a stable output of axial bubble water.

[0018] If the number of first holes is even, then there are corresponding first holes on both sides of the central hole in the radial direction. At this time, the water flow is the most stable. The water flow output from the central hole and the water flow output from the two first holes in the radial direction affect each other and form a stable negative pressure zone, which makes the air intake effect better and the axial bubble water more stable.

[0019] The bypass air passage corresponds to the first hole, so that the water flow output from the first hole is affected by both the water flow from the central hole and the air intake from the bypass air passage, thus ensuring a stable output of bubble water.

[0020] The bypass air passage is radially connected to the first hole, which constrains the influence of the water flow from the central hole and the air intake from the bypass air passage on the first hole to the radial direction, making the output of bubble water more stable.

[0021] If the length-to-diameter ratio of the central hole and the first hole is not less than 1.8:1, the vortex effect of the vortex water can be constrained, the axial output effect is better, the interaction between the central hole and the first hole is more favorable, and a better air intake effect can be obtained.

[0022] The water flow injected into the vortex cavity has a tangential flow perpendicular to the outlet direction. This means that the water flow will inevitably be blocked and collided during injection. The pressure drop causes the flow velocity to become unstable, generating liquid turbulence. Under the turbulence of the high-speed jet, the first shearing and breaking occurs, forming a large number of microbubbles.

[0023] A portion of the water flow injected axially into the vortex cavity has an increased velocity due to the relatively small diameter of the through-hole, and the resulting pressure difference creates many small turbulences, thereby generating more microbubbles.

[0024] Inside the bowl-shaped vortex cavity, the water flows collide and cut each other, thereby breaking down the generated microbubbles and obtaining more microbubbles.

[0025] In existing technologies, the filter screen in the water outlet chamber (such as the filter screen at the aerator outlet) mainly serves to rectify the water flow and also has a certain shearing and breaking effect. However, the applicant has found that simply increasing the mesh size of the filter screen to obtain finer water droplets drastically reduces its rectification effect, making the water flow unstable, causing vibrations, and resulting in a swaying water flow direction, making it impossible to form a stable axial water flow. To address this problem, the applicant has creatively designed a two-layer mesh structure, namely a first mesh structure and a second mesh structure, with the mesh size of the first mesh structure being larger than that of the second mesh structure. In this way, the water flow undergoes two shearing and breaking processes to obtain fine water droplets. Furthermore, since each shearing and breaking process is not as intense as a single, decisive breaking process, it also has a rectification effect, making the water flow stable in the axial direction and preventing vibrations.

[0026] The third mesh structure mainly serves a rectification effect. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments, the accompanying drawings used are briefly described below:

[0028] Figure 1 This is a perspective view of the water outlet device in the embodiment;

[0029] Figure 2 This is a schematic diagram of the water outlet device in the embodiment;

[0030] Figure 3 This is a cross-sectional view of the water outlet device in the embodiment;

[0031] Figure 4 This is a perspective view of the swirl element in the embodiment;

[0032] Figure 5 This is a perspective view of the intake component in the embodiment;

[0033] Figure 6 This is a perspective view of the first spacer, the second spacer, and the third spacer in the embodiment;

[0034] Figure 7 This is a schematic diagram of the water flow direction in the embodiment.

[0035] Explanation of key figure labels:

[0036] Water outlet device 100; water inlet connector 11, mounting cover 12, vortex component 13, air intake component 14, water outlet component 15; first spacer 16, second spacer 17, third spacer 18, end cap 19;

[0037] First mesh structure 21, first filter 211; second mesh structure 22, second filter 221; third mesh structure 23, third filter 231;

[0038] Water inlet channel 31, water passage 32, rotating flow channel 33, axial flow channel 34, vortex cavity 35, central hole 36, first hole 37, air-water mixing cavity 38, water outlet cavity 39.

[0039] Bypass airway 41, first stage 411, second stage 412, third stage 413. Detailed Implementation

[0040] Unless otherwise specified, the terms “first,” “second,” or “third,” etc., in the claims and description are used to distinguish different objects and not to describe a particular order.

[0041] Unless otherwise specified, in the claims and description, the terms “center,” “lateral,” “longitudinal,” “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “clockwise,” “counterclockwise,” etc., indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the purpose of simplifying the description, and do not imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation.

[0042] Unless otherwise specified in the claims and description, the terms "fixed connection" or "fixed connection" shall be interpreted broadly to mean any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection by other means or components.

[0043] In the claims and description, unless otherwise specified, the terms "comprising," "having," and variations thereof mean "including but not limited to."

[0044] The technical solutions in the embodiments will now be described clearly and completely with reference to the accompanying drawings.

[0045] See Figures 1 to 3 , Figures 1 to 3The water outlet device 100 of this embodiment is shown. As shown, the water outlet device 100 includes a water inlet connector 11, a mounting cover 12, a vortex member 13, an air intake member 14, a water outlet member 15, a first spacer 16, a second spacer 17, a third spacer 18, a first mesh structure 21, a second mesh structure 22, and a third mesh structure 23, which are fixed to each other.

[0046] The water inlet connector 11 is tubular, with a first flange on its outer wall and external threads on both the upper and lower parts of the first flange. The water inlet connector 11 has a through hole along the axial direction, forming a water inlet channel 31.

[0047] The mounting cover 12 is annular and has a downward annular protrusion. The mounting cover has a through hole along the axial direction to form a water passage 32. The diameter of the water passage 32 is smaller than the diameter of the water inlet 31.

[0048] Swirl element 13, as Figure 4 As shown, the device has a disc-shaped body with a through hole at its center, forming an axial flow channel 34. Four spiral walls are provided on the body, each spiraling from its inner end near the axis to its outer end on the circumference. The inner end of each spiral wall forms a cylindrical space for the annular protrusion of the mounting cover 12 to extend into. A rotating flow channel 33 is formed between adjacent spiral walls, opening onto the circumference. The swirling element 13 is fixed to the lower end of the mounting cover 12.

[0049] Suction component 14 Figure 3 and Figure 5 As shown, it is roughly a cylindrical body with an upward opening. The upper part of the cylindrical cavity has an internal thread that is screwed into the external thread under the first flange of the water inlet connector 11. The lower part of the cylindrical cavity is bowl-shaped, and the bowl wall surrounds to form a vortex cavity 35. A central hole 36 is opened at the bottom of the bowl-shaped cavity, and four first holes 37 are arranged around the central hole 36. The first holes 37 are evenly distributed in the circumferential direction. The outer wall of the suction component 14 also has a downward stepped surface. The lower end face of the suction component 14 has a groove to accommodate the central hole 36 and the four first holes 37. Four channels are opened on the lower end face, the side wall below the stepped surface, and the stepped surface of the suction component 14. Each channel forms a bypass air passage 41. The section of the bypass air passage 41 located on the lower end face is the first end 411, the section located on the side wall below the stepped surface is the second section 412, and the section located on the stepped surface is the third section 413. The first section 411 of the bypass air passage 41 extends radially and communicates with the groove, pointing towards the corresponding first hole 37. The second section 412 and the third section 413 of the bypass air passage 41 are also located on the vertical plane where the first section 411 is located. The intake element 14 is screwed upward to the water inlet connector 11, and the mounting cover 12 is fixedly clamped therebetween.

[0050] The water outlet component 15 consists of a tubular body and a partition wall located within the tubular cavity. The upper end of the tubular body abuts against the stepped surface of the air intake component 14, and the upper end of the partition wall abuts against the lower surface of the air intake component 14. The inner wall of the tubular body above the partition wall abuts against the side wall below the stepped surface of the air intake component 14, thereby allowing the bypass air passage 41 to be connected to the outside of the water outlet device 100 through the outer end of the third section 413 after the water outlet component 15 is fixedly connected to the air intake component 14. The partition wall has a through hole along the axial direction, which forms an air-water mixing chamber 38. The tubular cavity below the partition wall forms a water outlet chamber 39, the upper part of which is shaped like a frustum with a larger bottom and a smaller top, and the lower part is internally threaded, with a stepped surface formed between the upper and lower parts.

[0051] The first spacer 16, the second spacer 17, and the third spacer 18 have the same shape, all as shown in the figure. Figure 6 As shown, the device has an annular body and four reinforcing ribs extending radially from the inner wall of the annular body to provide support. The thicknesses of the first spacer 16, the second spacer 17, and the third spacer 18 are all between 1 and 3 mm; in this embodiment, 2 mm is used. A first mesh structure 21 is sandwiched between the first spacer 16 and the second spacer 17, and a second mesh structure 22 is sandwiched between the second spacer 17 and the third spacer 18. Thus, the thickness of the second spacer 17 forms the length of the first gap between the first mesh structure 21 and the second mesh structure 22.

[0052] The end cap 19 has a tubular body with a second flange on its lower outer wall. The outer wall of the tubular body has an external thread that engages with the internal thread below the partition wall of the water outlet 15. The inner wall of the tubular body has an upward stepped surface, and a third mesh structure 23 is sandwiched between the stepped surface and the third spacer 18, thereby forming the length of the second gap between the second mesh structure 22 and the third mesh structure 23 by the thickness of the third spacer 18. After the end cap 19 is screwed to the water outlet 15, the upper surface of its second flange abuts against the lower surface of the water outlet 15, clamping the first spacer 16, the first mesh structure 21, the second spacer 17, the second mesh structure 22, the third spacer 18, and the third mesh structure 23 between the downward stepped surface of the water outlet 15 and the upward stepped surface of the end cap 19.

[0053] The first mesh structure 21 includes one or two first filter screens 211. In this embodiment, there are two layers that are close to each other. The mesh count of the first filter screen 211 is not less than 60 meshes, and in this embodiment, 100 meshes are used.

[0054] The second mesh structure 22 includes one or two layers of second filter screens 221; in this embodiment, there are two layers that are close to each other. The mesh count of the second filter screen 221 should be greater than that of the first filter screen 211, and not less than 100 mesh; in this embodiment, 200 mesh is used. Because the mesh count of the second filter screen 221 is greater than that of the first filter screen 211, the mesh openings of the first mesh structure 21 are larger than those of the second mesh structure 22.

[0055] The third mesh structure 23 includes at least one third filter 231. The mesh count of the third filter 231 is less than that of the first filter 211; in this embodiment, 60 mesh is used. In this embodiment, the third mesh structure also includes a first filter 211 and a second filter 221. The first filter 211 is located downstream of the second filter 221 and upstream of the third filter 231; and the first filter 211 is attached to both the second filter 221 and the third filter 231.

[0056] See Figure 7 After connection, the water outlet device 100 in this embodiment has an inlet channel 31 and a through channel 32 along the water flow direction. After entering the vortex component, it enters the vortex cavity 35 through four rotating channels 33 and axial channels 34, and then enters the air-water mixing cavity 38 through the central hole 36 and four first holes 37. During this process, air is drawn in through four bypass air channels 41. After entering the air-water mixing cavity 38, it enters the water outlet cavity 39 and exits the water after passing through the first mesh structure 21, the second mesh structure 22 and the third mesh structure 23 in sequence.

[0057] In this embodiment, tangential water flow is injected into the vortex cavity 35 through the rotating flow channel 33 perpendicular to the water outlet direction. This inevitably causes the water flow to be blocked and collided during injection, resulting in pressure drop and unstable flow velocity, generating liquid turbulence. Under the turbulence of the high-speed jet, the first shearing and breaking occurs, forming a large number of microbubbles. Meanwhile, the water flow injected into the vortex cavity 35 through the axial flow channel 34 has a small diameter and increased flow velocity. The resulting pressure difference creates many small turbulences, thus generating even more microbubbles. Within the vortex cavity 35, the water flows collide and cut against each other, thereby pulverizing the generated microbubbles and obtaining even more microbubbles.

[0058] Inside the bowl-shaped vortex cavity 35, the water flows collide and cut each other, thereby pulverizing the generated microbubbles and obtaining more microbubbles.

[0059] In this embodiment, a central hole 36 and four first holes 37 evenly distributed around the central hole 36 are used to introduce water flow from the vortex cavity 35 into the air-water mixing cavity 38. Simultaneously, a bypass air passage 41 connects radially to the corresponding first hole 37. At this point, radially, the water flow from the central hole 36 interacts with the water flow and air flow from the first holes 37, influencing each other to form a stable negative pressure zone. This results in a significant air intake effect, preventing water flow from jerking and ensuring more stable axial bubble water. Of course, in other embodiments, an odd number of first holes 37 can also achieve the effect of preventing water flow from jerking, but the stability is not as good as with an even number of first holes 37. Furthermore, by setting the length-to-diameter ratio of the central hole 36 and the first holes 37 to not less than 1.8:1, the vortex effect of the swirling water is constrained, resulting in better axial output and a more favorable interaction between the central hole 36 and the first holes 37, leading to a better air intake effect.

[0060] To obtain finer water droplets than existing technologies, this embodiment incorporates a first mesh structure 21 and a second mesh structure 22 within the water outlet cavity 39. Furthermore, the mesh openings of the first mesh structure 21 are larger than those of the second mesh structure 22. This allows the water flow to undergo two shearing and agitation processes to produce finer water droplets. Moreover, because each shearing and agitation is less intense than a single, decisive agitation, it also provides a rectifying effect, stabilizing the water flow axially and preventing vibration.

[0061] To ensure the water flow can stably form an axial flow after breaking up, this embodiment incorporates a third mesh structure 23. This third mesh structure 23 primarily functions as a flow rectifyer; therefore, the final third filter 231 must have a smaller mesh size than the first filter 211. This enhances the rectification effect, ensuring a stable, unwavering axial flow. Furthermore, the third mesh structure 23 simultaneously incorporates both a second filter 221 and a first filter 211, with gradually decreasing mesh sizes. This further solidifies the breaking effect of the first two mesh stages while simultaneously rectifying the flow, increasing the proportion of fine water droplets.

[0062] In this embodiment, the first gap is formed between the first mesh structure 21 and the second mesh structure 22, and the second gap is formed between the second mesh structure 22 and the third mesh structure, relying on the second spacer 17 and the third spacer 18. The distance between the first gap and the second gap has a significant impact on the bubble morphology in the bubble water. If the distance is too small, the water vapor in the interlayer cannot mix sufficiently, resulting in uneven bubble formation in the bubble water. If the distance is too large, small bubbles are prone to merging into large bubbles, reducing the bursting effect. Therefore, after discovering the above-mentioned pattern, the applicant, through experiments, set the first gap and the second gap to be no less than 1 mm and no more than 3 mm.

[0063] In this embodiment, the water outlet device 100 has a first filter screen 211 with a mesh size of 100, a second filter screen 221 with a mesh size of 200, and a third filter screen 231 with a mesh size of 60. This allows for the production of ultra-microbubble water with a droplet diameter of less than 80 micrometers. The water is milky white, and the duration of the output water is at least 60 seconds. It also exhibits good axial stability, abundant bubbles, and is easily absorbed by the human body for hydration, thus achieving a deep cleaning effect.

[0064] The description of the above specification and embodiments is used to explain the scope of protection of this application, but does not constitute a limitation on the scope of protection of this application.

Claims

1. A water outlet device, comprising an outlet channel, wherein the outlet channel is provided with a vortex cavity and an air-water mixing cavity along the outlet direction; the air-water mixing cavity is connected to the atmosphere through a bypass air channel; the vortex cavity is connected to the air-water mixing cavity through a central hole and at least two first holes evenly distributed around the central hole in a circumferential direction; the number of the first holes is even, and the number of the bypass air channels is equal to the number of the first holes, and they are connected to the first holes one by one.

2. The water outlet device as described in claim 1, characterized in that, The bypass airway is radially connected to the corresponding first hole.

3. The water outlet device as described in claim 2, characterized in that, The length-to-diameter ratio of the central hole and the first hole is not less than 1.8:

1.

4. The water outlet device as described in claim 3, characterized in that, The vortex cavity is bowl-shaped, and the central hole and each of the first holes are located at the bottom of the vortex cavity.

5. A water outlet device as described in claim 4, characterized in that, At least a portion of the water flow is injected into the vortex cavity in a direction with a tangential component.

6. A water outlet device as described in claim 5, characterized in that, The direction in which the water flow with a tangential component is injected into the vortex cavity is perpendicular to the water outlet direction.

7. A water outlet device as described in claim 5, characterized in that, At least a portion of the water is injected into the vortex cavity in the outflow direction and directly towards the central hole.

8. A water outlet device as described in claim 7, characterized in that, The water outlet channel is further provided with a water outlet cavity located downstream of the air-water mixing cavity; a first mesh structure and a second mesh structure are arranged in the water outlet cavity along the water outlet direction; the mesh size of the first mesh structure is larger than that of the second mesh structure; a first gap is provided between the first mesh structure and the second mesh structure.

9. A water outlet device as described in claim 8, characterized in that, The water outlet cavity is further provided with a third mesh structure located within the second mesh structure; a second gap is provided between the second mesh structure and the third mesh structure.

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