Water output method, water output device and water-using appliance

Abstract

A water output method, a water output device and a water-using appliance. The water output device has two flow channels (1), wherein the two flow channels (1) are configured such that the water output directions thereof intersect with each other, and cavities (3) are provided in the water output directions. The water output device further has a flow regulating device (2), which is configured to regulate the flow rate of at least one flow channel (1) so that the two flow channels (1) can have different flow rates. Outlets of the plurality of cavities (3) are symmetrically distributed on a water output surface. By means of the flow regulating device regulating the flow rate of a fluid in at least one flow channel, the outflow trajectory of a converged fluid can be changed; moreover, since the outlets of the plurality of cavities are symmetrically distributed on a water output surface, the oscillation of a plurality of streams of outflowing water flows on the same water output surface is achieved, so as to change the size of a projection area or the position of the projection area.

Description

A water discharge method, a water discharge device, and a water-using appliance Technical Field

[0001] This invention relates to the field of bathroom technology, and in particular to a water outlet method, a water outlet device, and a water-using appliance. Background Technology

[0002] Existing bathroom products typically change the spray area by adjusting the direction of the water outlet. See announcements CN1217744C, CN202410859U, CN103170414A, CN104646199B, CN110787919B, CN112058516B, and CN220496656U. The disclosed methods use a hydrodynamic impeller to drive the nozzles to rotate or change the spray angle. This type of solution has a complex architecture, requiring multiple stages of transmission to achieve a suitable rate of change in the fluid discharge angle. Furthermore, each nozzle unit needs to be independently arranged. If a large number of nozzles are required (e.g., a typical showerhead has around 100 nozzles), each nozzle must be installed onto the panel individually, posing significant challenges to nozzle installation efficiency and the coordination between individual nozzle units and other structures.

[0003] In addition, patent documents CN2806909Y, CN201026468Y, CN201223835Y, CN201949936U, CN202113962U, CN103962253B and CN111263665B disclose valves that adjust the flow rate of a single or multiple water channels by changing the flow area of ​​the water. Technical issues

[0004] The technical problem to be solved by the present invention is to provide a water outlet device with a simple structure for adjusting the spray area. Technical solutions

[0005] To solve the above-mentioned technical problems, the first technical solution adopted by the present invention is: a water discharge method in which at least two first fluids with different flow angles converge and are constrained to form a second fluid that flows out; the second fluid has multiple streams and is symmetrically distributed on a water discharge surface; the flow rate of at least one of the first fluids is adjusted to expand or shrink the projection area formed by the second fluid.

[0006] To solve the above-mentioned technical problems, the second technical solution adopted by the present invention is: a water discharge method in which at least two first fluids with different flow angles converge and are constrained to form a second fluid that flows out; the second fluid has multiple streams that are symmetrically distributed on a water discharge surface; the flow rate of at least one of the first fluids is adjusted to cause the projection area formed by the second fluid to shift.

[0007] To solve the above-mentioned technical problems, the third technical solution adopted by the present invention is as follows: a water outlet device having two flow channels configured to intersect in the water outlet direction, and a cavity provided in the water outlet direction; having a flow regulating device configured to regulate the flow rate of at least one of the flow channels so that the two flow channels can have different flow rates; and a plurality of the cavity outlets symmetrically distributed on a water outlet surface. Beneficial effects

[0008] The beneficial effects of this invention are as follows: Multiple discharge chambers are added to the water outlet device, and each discharge chamber has two flow channels configured to intersect in the water outlet direction, with a cavity provided in the water outlet direction of each flow channel; by adjusting the flow rate of fluid in at least one flow channel through a flow regulating device, the outflow trajectory of the converging fluids can be changed. Simultaneously, since the outlets of multiple cavities are symmetrically distributed on a single water outlet surface, multiple outflowing water streams can oscillate on the same surface, thereby changing the size or position of the projection area. Attached Figure Description

[0009] Figure 1 is a schematic diagram showing the flow direction of the second fluid formed after the two first fluids with different flow rates converge.

[0010] Figure 2 is a schematic diagram of fluid particles generated after two first fluids with different flow rates converge from a top-down perspective.

[0011] Figure 3 is a schematic diagram of the structure of a water outlet device proposed in this invention;

[0012] Figure 4 is a partially enlarged structural schematic diagram of a water outlet device proposed in this invention;

[0013] Figure 5 is a schematic diagram of the structure of the water outlet plate of a water outlet device proposed in this invention;

[0014] Figure 6 is a schematic diagram of the structure of the water outlet plate of a water outlet device proposed in this invention.

[0015] Figure 7 is a schematic diagram of the structure of the water outlet plate of a water outlet device proposed in this invention.

[0016] Figure 8 is a schematic diagram of the structure of the water outlet plate of a water outlet device proposed in this invention;

[0017] Figure 9 is a schematic diagram of the structure of a water outlet device proposed in this invention, in which a baffle is provided at the outlet of the cavity.

[0018] Figure 10 is a schematic diagram of the structure of a water outlet device proposed in this invention, in which a baffle is provided at the outlet of the cavity.

[0019] Figure 11 is a schematic diagram of the structure of a water outlet device proposed in this invention, in which a baffle is installed at the outlet of the cavity.

[0020] Figure 12 is a schematic diagram of the structure of a water outlet device proposed in this invention, in which a baffle is installed at the outlet of the cavity.

[0021] Figure 13 is a schematic diagram of the structure of a water outlet device proposed in this invention, in which a baffle is installed at the outlet of the cavity.

[0022] Figure 14 is a cross-sectional structural schematic diagram of a water outlet device proposed in this invention applied to a pull-out faucet.

[0023] Figure 15 is an enlarged view of part D of the pull-out faucet in Figure 14;

[0024] Figure 16 is a cross-sectional structural diagram of a water outlet device proposed in this invention applied to a pull-out faucet.

[0025] Figure 17 is a cross-sectional structural diagram of a water outlet device proposed in this invention applied to a shower head;

[0026] Figure 18 is a schematic diagram of the cross-sectional structure of the shower head proposed in this invention;

[0027] Figure 19 is a cross-sectional structural diagram of a water outlet device proposed in this invention applied to a sanitary spray gun;

[0028] Figure 20 is an enlarged view of part E of the sanitary spray gun in Figure 19;

[0029] Figure 21 is a schematic diagram showing the effect of a water outlet device proposed in this invention causing a shift in the projection area formed by the second fluid.

[0030] Label Explanation:

[0031] 1. Flow channel; 2. Flow regulating device; 3. Cavity; 31. Outlet; 4. Baffle; 5. First fluid; 6. Second fluid; 61. Projection area; 7. Water outlet plate; 71. Water outlet surface;

[0032] 8. Water distribution plate; 81. Baffle plate; 82. Water passage hole; 83. Water flow hole. Embodiments of the present invention

[0033] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0034] Referring to Figures 3 and 4, the present invention provides a water outlet device having two flow channels 1, which are configured to intersect in the water outlet direction, and a cavity 3 is provided in the water outlet direction; it has a flow regulating device 2, which is configured to regulate the flow rate of at least one flow channel 1 so that the two flow channels 1 can have different flow rates; and the outlets 31 of a plurality of cavities 3 are symmetrically distributed on a water outlet surface.

[0035] Working Principle: When two water streams collide, if one stream is stronger than the other (i.e., has a larger flow rate), the discharge trajectory of the fluid after the collision will tend to follow the original discharge trajectory of the stronger stream, as shown in Figure 1. Here, the thickness of the arrows representing the two converging first fluid streams 5 indicates their flow strength; the thicker first fluid stream 5 is stronger than the thinner one. Therefore, by adjusting the strength of at least one of the first fluid streams 5, the discharge trajectory of the second fluid 6 can be changed, meaning the intersecting streams deviate towards the direction of the stronger flow channel 1. Simultaneously, considering that, as shown in Figure 2, when the two first fluid streams 5 collide, some fluid will splash out in the form of fluid particles, mainly scattering irregularly to both sides of the water flow direction, a cavity 3 is added to constrain the scattered fluid particles, causing them to re-converge in a specific direction, forming a regular water splash of a specific shape. Utilizing the aforementioned principle, the outlets of multiple chambers 3 are symmetrically distributed on a water outlet surface. The flow rate of at least one first fluid 5 is adjusted by the flow rate regulating device 2 to expand or shrink the projection area formed by multiple second fluids 6. The size of the projection area refers to the size of the spray area formed by the fluid on the surface to be projected. Alternatively, as shown in Figure 21, the flow rate of at least one first fluid 5 is remotely adjusted by the flow rate regulating device 2 to change the position of the projection area 61 formed by multiple second fluids 6. That is, the angle of the outwardly discharged second fluids 6 changes (the solid and dashed water flow trajectories in the figure represent the projection direction of the second fluids 6 under two different adjustment states, respectively). The solution shown in Figure 21 is applied to a top-spray shower head. Compared to existing top-spray shower heads that require users to raise their arms or even stand on another object to raise their arms to adjust the shower angle of the high-mounted shower head, this solution allows people of different heights to easily adjust the shower angle by operating the flow rate regulating device 2 located at a lower position, significantly improving the user experience of the top-spray shower head.

[0036] It is worth noting that, referring to Figure 4, the water outlet direction of channel 1 forms an angle A, where 10° ≤ A ≤ 100°. If the angle between channels 1 is larger, the collision between the two water streams is greater, resulting in more dispersed and scattered fluid particles. Consequently, the discharged water stream will have many dispersed fluid particles around it, making the visual outline of the discharged water stream appear blurry. Conversely, if the angle between channels 1 is smaller, the collision between the two water streams is lower, resulting in fewer and more concentrated dispersed fluid particles, and a clearer water stream outline. However, a smaller angle leads to less noticeable changes in the fluid discharge trajectory. As described above, by limiting the angle between the water outlet directions of channels 1, both the fluid discharge pattern and the range of discharge angles can be considered. The preferred range for the angle A of the water outlet direction of channel 1 can be further configured as 65° ≤ A ≤ 75°.

[0037] It should be noted that, as shown in Figure 4, with the central axis of cavity 3 as the reference, the two flow channels 1 can be symmetrically arranged on both sides of the central axis of cavity 3. For example, the water outlet direction of one flow channel 1 forms an angle B with the central axis of cavity 3, and the water outlet direction of the other flow channel 1 forms an angle C with the central axis of cavity 3. Angle B is equal to angle C, and angle B plus angle C equals angle A. Alternatively, the two flow channels 1 can be asymmetrically arranged on both sides of the central axis of cavity 3. For example, the water outlet direction of one flow channel 1 forms an angle B with the central axis of cavity 3, and the water outlet direction of the other flow channel 1 forms an angle C with the central axis of cavity 3. Angle B is not equal to angle C, and angle B plus angle C equals angle A.

[0038] In some embodiments, the inlet flow area to the outlet flow area of ​​channel 1 is equal, or the inlet flow area to the outlet flow area of ​​channel 1 gradually decreases. If the inlet flow area to the outlet flow area of ​​channel 1 is equal, it can ensure relative stability when the two streams of water collide. If the inlet flow area to the outlet flow area of ​​channel 1 gradually decreases, channel 1 has the effect of increasing water pressure, which can enhance the impact effect when the two streams of water collide.

[0039] Preferably, the ratio of the inlet flow area to the outlet flow area of ​​channel 1 is X, where 1 ≤ X ≤ 2. The inlet flow area of ​​channel 1 is limited to no more than twice the outlet flow area to avoid generating excessive fluid particles when the two streams collide, thus ensuring the effective formation of water splashes with clear flow profiles.

[0040] In some embodiments, as shown in Figure 4, the flow length of the cavity 3 is S, where 0.5mm ≤ S ≤ 2mm. If the flow length of the cavity 3 is too short, it is insufficient to gather a sufficient amount of fluid particles to form regular water droplets with a specific shape. Conversely, if the flow length is too long, it will limit the angle range of the gathered water flow to be discharged outward. Therefore, the flow length of the cavity 3 is limited to meet the forming effect after the fluid is discharged.

[0041] In some embodiments, the cavity 3 is preferably rectangular, elliptical, or trapezoidal in shape. Specifically, the aspect ratio of the cross-section of the rectangular or trapezoidal cavity 3 in the water-flow direction is 2 to 3:1. Preferably, the width of the cavity 3 is 0.3 mm to 2 mm. The aspect ratio of the major axis to the minor axis of the cross-section of the elliptical cylinder 3 in the water-flow direction is 2 to 3:1. Preferably, the minor axis of the cavity 3 is 0.3 mm to 2 mm. Limiting the width of the cavity 3 not only ensures the flow of the second fluid 6 but also ensures the effective collection of dispersed splashed fluid particles.

[0042] It should be noted that the flow regulating device 2 can be a valve commonly used in the art to regulate the flow of a single or multiple water channels by changing the water flow area, or it can be an external water pump that directly regulates the flow by changing the pump power.

[0043] Furthermore, the water outlet surface 71 is roughly circular, and the outlets 31 of the multiple cavities 3 are radially distributed symmetrically on the water outlet surface 71; the outlets 31 of the cavities 3 are rectangular, and the length direction of the outlets 31 of the cavities 3 is located in the radial direction.

[0044] As can be seen from the above description, the outlets 31 of the multiple cavities 3 are radially distributed in a centrally symmetrical manner on the water outlet surface 71, so that the projection area formed by the multiple second fluids 6 is a cone-shaped or cylindrical shape.

[0045] In some embodiments, referring to Figure 5, the water outlet surface 71 is rectangular, and the outlets 31 of the multiple cavities 3 are axially symmetrically distributed on the water outlet surface 71, so that the projection area formed by the multiple second fluids 6 is trapezoidal or rectangular.

[0046] Please refer to Figures 9 to 13. Further, a baffle 4 is provided at the outlet 31 of the cavity 3. The baffle 4 is located on the extension line of one of the flow channels 1 toward the cavity 3.

[0047] Furthermore, baffles 4 are provided on the extension lines of the two flow channels 1 toward the cavity 3, and the baffles 4 are located at the outlet 31 of the cavity 3.

[0048] As can be seen from the above description, when the angle of the columnar water flow discharged by the flow regulating device 2 impacts the water-facing surface of the baffle 4, the baffle 4 will disperse the water flow, causing the water flow to form sheet-like water splashes, and the overall outline of the water splashes is trapezoidal or fan-shaped.

[0049] Please refer to Figures 10 to 13. Further, the water-facing surface of the baffle 4 is an arc-shaped concave surface.

[0050] As can be seen from the above description, the use of the arc-shaped surface can reduce the splashing of fluid particles after the second fluid 6 impacts the baffle 4, thereby ensuring the water splash formation effect.

[0051] In some embodiments, the baffle 4 has a rectangular, semi-cylindrical, trapezoidal, or hexagonal outline. The trapezoid is an isosceles trapezoid, with its long side close to the cavity 3. Furthermore, the connection between the short side of the trapezoid and the two sides is rounded.

[0052] A hexagon is formed by separating from the long side at each of the two sides of an isosceles trapezoid, creating two straight sides. This structure produces the least amount of particle splashing and has the clearest water flow profile.

[0053] A water discharge method wherein at least two first fluids 5 with different flow angles converge and are constrained to form a second fluid 6 that flows out; the second fluid 6 has multiple streams symmetrically distributed on a water discharge surface; the flow rate of at least one of the first fluids 5 is adjusted to expand or shrink the projection area formed by the second fluid 6.

[0054] Furthermore, the water outlet surface is roughly circular, making the projection area formed by the second fluid 6 resemble a cone or cylinder, and adjusting the flow rate of at least one stream of the first fluid 5 to expand or shrink the projection area.

[0055] Furthermore, the water outlet surface is rectangular, making the projection area of ​​the second fluid 6 resemble a trapezoid or rectangle. The flow rate of at least one stream of the first fluid 5 is adjusted to expand or shrink the projection area.

[0056] Furthermore, at least two first fluids 5 with different flow directions and angles are grouped together, and there are multiple groups of first fluids 5.

[0057] A water discharge method wherein at least two first fluids 5 with different flow angles converge and are constrained to form a second fluid 6 that flows out; the second fluid 6 has multiple streams symmetrically distributed on a water discharge surface; the flow rate of at least one of the first fluids 5 is adjusted to cause the projection area formed by the second fluid 6 to shift.

[0058] Further, referring to Figures 6-8, the water outlet surface 71 is arranged linearly, including straight lines, curves, or broken lines, so that the projection area of ​​the second fluid 6 is correspondingly arranged as a straight line, curve, or broken line, and the flow rate of at least one stream of the first fluid 5 is adjusted to cause the projection position of the projection area to shift.

[0059] Example 1

[0060] Pull-out faucets are typically used with kitchen faucets.

[0061] Please refer to Figures 14 and 15. A pull-out faucet includes a housing and a water outlet device. The water outlet of the housing is fitted with a water outlet plate 7. The water outlet plate 7 is provided with multiple discharge chambers. The water distribution plate 8 is provided with partitions 81 and water passage holes 82 equal in number to the discharge chambers, as well as at least one water passage hole 83 for conveying fluid to the cavity between the water distribution plate 8 and the water outlet plate 7. The partitions 81 and the water passage holes 82 are arranged adjacent to each other. The partitions 81 are located on the drainage surface of the water distribution plate 8.

[0062] The water distribution plate 8 is assembled on the water-facing surface of the water outlet plate 7. The partition plate 81 is embedded in the discharge chamber to separate the discharge chamber, forming two flow channels 1 and a cavity 3 on the water outlet side of the flow channel 1. The two flow channels 1 and the cavity 3 are arranged in a Y-shape. The water distribution plate 8 divides the water flow into two water paths. The water passage hole 82 guides the water flow through one of the flow channels 1 and directly into the cavity 3 of all discharge chambers. The water passage hole 83 guides the water flow to pass through the water distribution plate 8 and then into the cavity between the water distribution plate 8 and the water outlet plate 7. Then, from this cavity, it enters the cavity 3 of all discharge chambers through the other flow channel 1. In this way, the two water paths can independently supply water to the two flow channels 1 of each discharge chamber.

[0063] It also includes a flow regulating device 2, which has a valve core located inside the housing cavity and a push button slidably disposed outside the housing. The push button is drivenly connected to the adjusting end of the valve core. By controlling the opening of the valve core with the push button, the flow regulating device 2 can regulate the flow rate of any one of the water channels after diversion, so that the two water streams collide with each other and are rectified by the cavity 3 to be discharged to the outside at a specific angle.

[0064] Please refer to Figure 16. Another type of pull-out faucet, different from the pull-out faucets shown in Figures 14 and 15, has a flow regulating device 2 with a knob rotatably mounted outside the housing. The knob is connected to the regulating end of the valve core, thereby driving the valve core to control the water flow variation mode of the pull-out faucet.

[0065] Example 2

[0066] Please refer to Figures 17 and 18. A shower head includes a shower head, a handle, and a water outlet device. The water outlet of the shower head is embedded with a water outlet plate 7. The water outlet plate 7 is provided with multiple discharge chambers. The water distribution plate 8 is provided with partitions 81 and water passage holes 82, which are equal in number to the number of discharge chambers. The partitions 81 and water passage holes 82 are arranged adjacent to each other. The partitions 81 are located on the drainage surface of the water distribution plate 8.

[0067] The water distribution plate 8 is assembled on the water-facing surface of the water outlet plate 7. The partition plate 81 is embedded in the discharge chamber to separate the discharge chamber, forming two flow channels 1 and a cavity 3 on the water outlet side of the flow channel 1. The two flow channels 1 and the cavity 3 are arranged in a Y-shape. The water distribution plate 8 divides the water flow into two water paths. The water passage 82 guides the water flow through one of the flow channels 1 into the cavity 3 of all discharge chambers. The cavity between the water distribution plate 8 and the water outlet plate 7 guides the water flow through the other flow channel 1 into the cavity 3 of all discharge chambers. In this way, the two water paths can independently supply water to the two flow channels 1 of each discharge chamber.

[0068] It also includes a flow regulating device 2, which has a valve core located inside the handle cavity and an operating part located outside the handle. The operating part can be configured as a button, push knob, or knob, etc. The operating part is connected to the regulating end of the valve core. The valve core is configured to independently supply water to the water-facing surface of the water distribution plate 8 and the cavity between the water distribution plate 8 and the outlet plate 7. In this way, by controlling the opening of the valve core through the operating part, the flow regulating device 2 can regulate the flow of any one of the water paths after diversion, so that the two water streams collide with each other and are rectified by the cavity 3 to produce a specific angle for discharge to the outside.

[0069] Example 3

[0070] Sanitary showerheads are typically used with showerheads in bathrooms or toilets, and can also be used for car washing.

[0071] Please refer to Figures 19 and 20. A sanitary sprinkler head includes a housing and a water outlet device. The water outlet of the housing is fitted with a water outlet plate 7. The water outlet plate 7 is provided with multiple discharge chambers. The water distribution plate 8 is provided with partitions 81 and water passage holes 82 in the same number as the discharge chambers. The partitions 81 and water passage holes 82 are arranged adjacent to each other. The partitions 81 are located on the drainage surface of the water distribution plate 8.

[0072] The water distribution plate 8 is assembled on the water-facing surface of the water outlet plate 7. The partition plate 81 is embedded in the discharge chamber to separate the discharge chamber, forming two flow channels 1 and a cavity 3 on the water outlet side of the flow channel 1. The two flow channels 1 and the cavity 3 are arranged in a Y-shape. The water distribution plate 8 divides the water flow into two water paths. The water passage guides the water flow through one of the flow channels 1 into the cavity 3 of all discharge chambers. The cavity between the water distribution plate 8 and the water outlet plate 7 guides the water flow through the other flow channel 1 into the cavity 3 of all discharge chambers. In this way, the two water paths can independently supply water to the two flow channels 1 of each discharge chamber.

[0073] It also includes a flow regulating device 2 for regulating the flow rate of at least one water path after diversion; the flow regulating device 2 has a valve core located in the inner cavity of the housing, and the flow regulating device 2 has an operating part slidably disposed outside the housing, the operating part being drivenly connected to the regulating end of the valve core.

[0074] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A water discharge method, characterized in that: After the first fluids with at least two different flow angles converge, they are constrained to form the second fluid that flows out. The second fluid has multiple streams, symmetrically distributed on an outlet surface; Adjust the flow rate of at least one of the first fluids to expand or shrink the projection area formed by the second fluid.

2. The water outlet method according to claim 1, characterized in that: The water outlet surface is roughly circular, making the projection area formed by the second fluid roughly conical or cylindrical. The flow rate of at least one of the first fluids is adjusted to expand or shrink the projection area of ​​the projection region.

3. The water outlet method according to claim 1, characterized in that: The water outlet surface is rectangular, making the projection area of ​​the second fluid trapezoidal or rectangular. The flow rate of at least one of the first fluids is adjusted to expand or shrink the projection area.

4. The water outlet method according to claim 1, characterized in that: The first fluid consists of at least two streams with different flow angles, forming a group, and there are multiple groups of the first fluid.

5. A water discharge method, characterized in that: After the first fluids with at least two different flow angles converge, they are constrained to form the second fluid that flows out. The second fluid has multiple streams, symmetrically distributed on an outlet surface; The flow rate of at least one of the first fluids is adjusted to cause a shift in the projection area formed by the second fluid.

6. The water outlet method according to claim 5, characterized in that: The water outlet surface is arranged linearly, including straight lines, curves, or broken lines, so that the projection area of ​​the second fluid is correspondingly straight, curved, or broken lines, and the flow rate of at least one of the first fluids is adjusted to cause the projection position of the projection area to shift.

7. A water outlet device characterized by: It has two flow channels, which are configured to intersect in the water outlet direction, and a cavity is provided in the water outlet direction; It has a flow regulating device configured to regulate the flow rate of at least one of the flow channels so that the two flow channels can have different flow rates; The outlets of the multiple cavities are symmetrically distributed on a water outlet surface.

8. The water outlet device according to claim 7, characterized in that: The water outlet surface is roughly circular, and the outlets of the multiple cavities are radially distributed symmetrically on the water outlet surface. The cavity outlet is rectangular, and the length direction of the cavity outlet is located in the radial direction.

9. The water outlet device according to claim 8, characterized in that: A baffle is provided at the outlet of the cavity, and the baffle is located on the extension line of one of the flow channels toward the cavity.

10. The water outlet device according to claim 8, characterized in that: Baffles are provided on both of the two flow channels along the extension lines of the cavity, and the baffles are located at the outlet of the cavity.

11. The water outlet device according to claim 9 or 10, characterized in that: The water-facing surface of the baffle is an arc-shaped concave surface.

12. The water outlet device according to claim 9 or 10, characterized in that: The baffle has a rectangular, semi-cylindrical, trapezoidal, or hexagonal shape.

13. A water appliance, characterized by: Includes the water outlet device according to any one of claims 7-12, wherein the water-using appliance is a pull-out faucet, a shower head, or a sanitary spray gun.

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