Water outlet devices and bathroom equipment

Abstract

This invention discloses a water outlet device and bathroom fixtures, relating to the field of bathroom fixtures. The water outlet device includes an inlet pipe and a main body. The inlet pipe includes a connected inlet section and a through section. The main body is provided with a first outlet channel, a second outlet channel, a first feedback channel, a second feedback channel, and a negative pressure chamber. Water enters through the inlet pipe and sequentially passes through the inlet section, the through section, the negative pressure chamber, and the first outlet channel, finally exiting from the first outlet hole. After water exits from the first outlet hole for a period of time, under the action of airflow, the water flows from the negative pressure chamber into the second outlet channel, finally exiting from the second outlet hole. Therefore, the first and second outlet holes can alternately exit water, providing a certain massage effect. The water outlet device does not require a gear mechanism, thus its structure is simple and reliable, easy to install, has a low failure rate, and a long service life.

Description

Technical Field

[0001] This invention relates to the field of sanitary ware, and in particular to a water outlet device and sanitary ware. Background Technology

[0002] In related technologies, bathroom equipment such as massage shower heads require water flow to drive an impeller to rotate. The impeller then controls the water outlet to switch between different water output states through a gear mechanism, such as controlling different water outlet holes of the water outlet to alternate water flow. However, due to issues such as manufacturing precision, assembly precision, and clogging by impurities, the gear mechanism is prone to failure, resulting in a short lifespan for massage shower heads. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a water outlet device that can control the alternating flow of water from different outlets without the need for a transmission mechanism such as gears. It has a simple and reliable structure, is easy to install, and has a long service life.

[0004] The present invention also proposes a bathroom device having the above-mentioned water outlet device.

[0005] According to a first aspect of the present invention, a water outlet device includes: an inlet pipe comprising an inlet section and a through section connected sequentially along the inlet direction, wherein the flow cross-section of the inlet section is larger than that of the through section; a main body comprising a negative pressure chamber, a first outlet channel, a second outlet channel, a first feedback channel, and a second feedback channel, wherein the inlet end of the negative pressure chamber is connected to the through section, the first outlet channel and the second outlet channel are arranged side-by-side at the outlet end of the negative pressure chamber, the first outlet channel having a first outlet hole, and the second outlet channel having a second outlet hole; the first feedback channel connecting the first outlet channel and the negative pressure chamber, wherein a first outlet of the first feedback channel is located on the side wall of the negative pressure chamber near the second outlet channel, and the airflow from the first outlet can guide the water flow of the negative pressure chamber toward the second outlet channel; the second feedback channel connecting the second outlet channel and the negative pressure chamber, wherein a second outlet of the second feedback channel is located on the side wall of the negative pressure chamber near the first outlet channel, and the airflow from the second outlet can guide the water flow of the negative pressure chamber toward the first outlet channel.

[0006] The water outlet device according to embodiments of the present invention has at least the following beneficial effects:

[0007] Water enters through the inlet pipe and passes sequentially through the inlet section, the flow section, and the negative pressure chamber. Because the flow cross-section of the inlet section is larger than that of the flow section, the water velocity increases in the flow section, creating negative pressure in the negative pressure chamber, which in turn draws air from the first and second feedback channels. Due to manufacturing precision issues and airflow instability, the amount of air drawn from the first and second feedback channels is unequal; for example, the air volume drawn from the first feedback channel is greater than that drawn from the second feedback channel. Therefore, the airflow blowing out of the first feedback channel deflects the water flow towards the first outlet channel. The water flows along the wall of the first outlet channel and finally exits through the first outlet hole, while the second outlet hole either does not produce any water or contains only a small amount. When the first outlet hole is full of water, the first feedback channel can only draw in water, not air. Due to the weight of the water, the water velocity in the first feedback channel is lower than the air velocity in the second feedback channel. Therefore, under the airflow in the second feedback channel, the water flow is deflected towards the second outlet channel and flows along the wall of the second outlet channel, finally exiting from the second outlet hole, while the first outlet hole either does not produce water or produces only a small amount of water. Thus, the water outlet device does not require a gear-like transmission mechanism, and the first and second outlet holes can alternately emit water, providing a certain massage effect. Furthermore, the water outlet device has a simple and reliable structure, is easy to install, has a low failure rate, and a long service life.

[0008] According to some embodiments of the present invention, the side of the first water outlet channel near the second water outlet channel is a first connecting surface, and the side of the second water outlet channel near the first water outlet channel is a second connecting surface. The upper end of the first connecting surface and the upper end of the second connecting surface are connected to form a connecting portion. The connecting portion is spaced apart from the negative pressure chamber or extends to the water inlet end of the negative pressure chamber.

[0009] According to some embodiments of the present invention, the first water outlet channel and the second water outlet channel have a first guide surface and a second guide surface that are arranged opposite to each other and are both arc-shaped. The first guide surface protrudes toward the second guide surface and extends to the water outlet end of the negative pressure chamber, and the second guide surface protrudes toward the first guide surface and extends to the water outlet end of the negative pressure chamber.

[0010] According to some embodiments of the present invention, the first water outlet channel includes a first water outlet section and a first arc-shaped section connected together, the inner wall of the first arc-shaped section is arc-shaped, and the first arc-shaped section forms the first water outlet hole, and the first inlet of the first feedback channel is disposed in the first arc-shaped section;

[0011] The second water outlet channel includes a second water outlet section and a second arc-shaped section connected together. The inner wall of the second arc-shaped section is arc-shaped, and the second arc-shaped section forms the second water outlet hole. The second inlet of the second feedback channel is located in the second arc-shaped section.

[0012] According to some embodiments of the present invention, the first inlet is located above the central axis of the first outlet hole, the cross surface at the intersection of the lower wall surface of the first inlet and the inner wall of the first arc segment is the first cross surface, and the included angle between the first cross surface and the lower wall surface of the first inlet is α, satisfying 0°<α≤150°;

[0013] The second inlet is located above the central axis of the second outlet. The cross-section at the intersection of the lower wall of the second inlet and the inner wall of the second arc segment is the second cross-section. The included angle between the second cross-section and the lower wall of the second inlet is β, which satisfies 0°<β≤150°.

[0014] According to some embodiments of the present invention, the width of the water passage section is W, the inner wall of the first arc-shaped section is an arc with a diameter of D1, satisfying: 4W≤D1≤6W, and / or

[0015] The inner wall of the second arc segment is a circular arc with a diameter of D2, satisfying: 4W≤D2≤6W.

[0016] According to some embodiments of the present invention, the outer wall of the main body is provided with a diversion portion, the first feedback channel includes a first feedback section and a second feedback section that are connected, the first feedback section is arranged side by side on the side of the first water outlet channel away from the second water outlet channel, and the second feedback section is formed in the diversion portion and communicates with the negative pressure chamber; and / or

[0017] The second feedback channel includes a third feedback section and a fourth feedback section that are connected to each other. The third feedback section is arranged side by side on the side of the second water outlet channel away from the first water outlet channel. The fourth feedback section is formed in the diversion section and is connected to the negative pressure chamber.

[0018] According to some embodiments of the present invention, the flow cross-sectional area of ​​the water passage section is S1, and the flow cross-sectional area of ​​the outlet end of the negative pressure cavity is S2, satisfying: 1.5S1≤S2≤2.5S1.

[0019] According to some embodiments of the present invention, the flow cross-sectional area of ​​the water passage section is S1, and the flow cross-sectional area of ​​the inlet end of the first outlet channel is S3, satisfying: 1.2S1≤S3≤1.5S1, and / or

[0020] The flow cross-sectional area of ​​the inlet end of the second water outlet channel is S4, which satisfies 1.2S1≤S4≤1.5S1.

[0021] According to some embodiments of the present invention, the main body is provided with a first water outlet pipe and a second water outlet pipe, the inner cavity of the first water outlet pipe is connected to the first water outlet hole, and the inner cavity of the second water outlet pipe is connected to the second water outlet hole.

[0022] According to some embodiments of the present invention, the cross-section of the water inlet section gradually decreases along the water inlet direction.

[0023] According to a second aspect of the present invention, a bathroom device includes the water outlet device described in the above embodiments.

[0024] The bathroom fixtures according to embodiments of the present invention have at least the following beneficial effects:

[0025] Using the water outlet device described in the first aspect, water enters through the inlet pipe and passes sequentially through the inlet section, the through section, and the negative pressure chamber. Because the flow cross-section of the inlet section is larger than that of the through section, the water flow velocity increases in the through section, creating negative pressure in the negative pressure chamber, which in turn draws air from the first and second feedback channels. Due to manufacturing precision issues and airflow instability, the amount of air drawn from the first and second feedback channels is unequal; for example, the amount of air drawn from the first feedback channel is greater than that drawn from the second feedback channel. Therefore, the airflow blowing out of the first feedback channel deflects the water flow towards the first outlet channel. The water flows along the wall of the first outlet channel and finally exits from the first outlet hole, while the second outlet hole either does not produce water or contains only a small amount of water. When the first outlet hole is full of water, the first feedback channel can only draw water, not air. Under the influence of the water's own weight, the water flow velocity in the first feedback channel is less than the airflow velocity in the second feedback channel. Therefore, under the airflow in the second feedback channel, the water flow is deflected towards the second outlet channel and flows along the wall of the second outlet channel, finally exiting from the second outlet hole, while the first outlet hole either does not produce water or produces only a small amount of water. Thus, the water outlet device does not require a gear-like transmission mechanism, and the first and second outlet holes can alternately emit water, providing a certain massage effect. Furthermore, the water outlet device has a simple and reliable structure, is easy to install, has a low failure rate, and a long service life.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 This is a schematic diagram of the structure of a water outlet device according to an embodiment of the present invention;

[0029] Figure 2 yes Figure 1 A structural schematic diagram of the water outlet device from another perspective;

[0030] Figure 3 yes Figure 1 A top view of the water outlet device;

[0031] Figure 4 yes Figure 3 A cross-sectional view of the water outlet device at point AA;

[0032] Figure 5 yes Figure 3 A cross-sectional view of the water outlet device at BB, and a schematic diagram showing a partial cross-section of the main body;

[0033] Figure 6 This is a cross-sectional schematic diagram of a water outlet device according to an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the state of the first and second feedback channels of the water outlet device in an embodiment of the present invention when air is being drawn in;

[0035] Figure 8 This is a schematic diagram of the state when the water outlet device of one embodiment of the present invention is in the state of water outlet from the first water outlet and air intake from the first feedback channel.

[0036] Figure 9 This is a schematic diagram of the state when the water outlet device of one embodiment of the present invention is in the state of water outlet from the first water outlet and water is drawn in from the first feedback channel;

[0037] Figure 10 This is a schematic diagram of the state when the water outlet device of one embodiment of the present invention is in the state of water outlet from the second water outlet and water is drawn in by the second feedback channel;

[0038] Figure 11 This is a schematic diagram of a water outlet device according to an embodiment of the present invention, showing a portion of the water flow overflowing from the first water outlet channel to the second water outlet channel;

[0039] Figure 12 This is a cross-sectional view of a water outlet device according to another embodiment of the present invention.

[0040] Figure label:

[0041] Water outlet device 1000;

[0042] Inlet pipe 100; Inlet section 110; Passage section 120;

[0043] Main body 200; negative pressure chamber 210; first water outlet channel 220; first guide surface 221; first water outlet section 222; first arc-shaped section 223; first protrusion 224; first water outlet hole 225; first connecting surface 226; connecting part 227; second water outlet channel 230; second guide surface 231; second water outlet section 232; second arc-shaped section 233; second protrusion 234; second water outlet hole 235; second connecting surface 236; first feedback channel 240; first outlet 241; first feedback section 242; second feedback section 243; first inlet 244; second feedback channel 250; second outlet 251; third feedback section 252; fourth feedback section 253; second inlet 254; diversion part 260; diversion chamber 270;

[0044] First outlet pipe 300;

[0045] The second water outlet pipe is 400. Detailed Implementation

[0046] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0047] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0048] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0049] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0050] Reference Figure 1 and Figure 2As shown, a water outlet device 1000 according to an embodiment of the present invention can be used in bathroom equipment, such as massage showers with overhead sprays, waist sprays, and shoulder sprays. The water outlet device 1000 of this embodiment includes an inlet pipe 100, a main body 200, a first outlet pipe 300, and a second outlet pipe 400. The inlet pipe 100 is connected to the upper end of the main body 200, and the first outlet pipe 300 and the second outlet pipe 400 are spaced apart on the side wall of the main body 200. For example, the inlet pipe 100, the first outlet pipe 300, and the second outlet pipe 400 can be integrally formed or connected by threads. Water enters through the inlet pipe 100, passes through the main body 200, and then alternately exits between the first outlet pipe 300 and the second outlet pipe 400. Through the alternating changes in water flow, the water outlet device 1000 provides a certain massage effect, improving the user's showering experience. The first water outlet pipe 300 and the second water outlet pipe 400 also function as connectors, allowing bathroom fixtures to be connected to the first water outlet pipe 300 and the second water outlet pipe 400 to guide water to the appropriate location.

[0051] In order for the water outlet device 1000 to achieve the function of alternating water flow between the first outlet pipe 300 and the second outlet pipe 400, refer to Figure 3 and Figure 4 As shown, in an embodiment of the present invention, the water inlet pipe 100 includes an inlet section 110 and a water passage section 120 connected sequentially along the water inlet direction, and the flow cross section of the water passage section 120 is smaller than the flow cross section of the water inlet section 110.

[0052] Continue to refer to Figure 4 As shown, the main body 200 is provided with a negative pressure chamber 210, a first water outlet channel 220, a second water outlet channel 230, a first feedback channel 240 and a second feedback channel 250. The negative pressure chamber 210 is located below the water passage section 120, and the water inlet end of the negative pressure chamber 210 is connected to the water outlet end of the water passage section 120. The maximum flow cross section of the negative pressure chamber 210 is greater than the flow cross section of the water passage section 120.

[0053] The upper ends of the first water outlet channel 220 and the second water outlet channel 230 are both connected to the water outlet end of the negative pressure chamber 210 and are arranged side by side. The lower ends of the first water outlet channel 220 and the second water outlet channel 230 can be spaced apart in the left-right direction. The lower ends of the first water outlet channel 220 and the second water outlet channel 230 are respectively provided with a first water outlet hole 225 and a second water outlet hole 235. The first water outlet hole 225 is connected to the inner cavity of the first water outlet pipe 300, and the second water outlet hole 235 is connected to the inner cavity of the second water outlet pipe 400.

[0054] The first feedback channel 240 has a first inlet 244 and a first outlet 241. The first inlet 244 is connected to the first water outlet 225, and the first outlet 241 is connected to the negative pressure chamber 210. The second feedback channel 250 has a second inlet 254 and a second outlet 251. The second inlet 254 is connected to the second water outlet 235, and the second outlet 251 is connected to the negative pressure chamber 210. The first outlet 241 and the second outlet 251 are spaced apart on both sides of the negative pressure chamber 210, with the first outlet 241 located on the side of the negative pressure chamber 210 closer to the inlet end of the second water outlet channel 230, and the second outlet 251 located on the side of the negative pressure chamber 210 closer to the inlet end of the first water outlet channel 220. That is, the first outlet 241 is located on the left side of the negative pressure chamber 210, and the second outlet 251 is located on the right side of the negative pressure chamber 210.

[0055] Reference Figure 7 As shown, Figure 7 Solid arrows indicate the direction of water flow, while dashed arrows indicate the direction of airflow. The same applies to other attached diagrams, and will not be elaborated further. Using the above scheme, water flows from the inlet pipe 100 into the outlet device 1000, passing sequentially through the inlet section 110, the water passage section 120, and the negative pressure chamber 210. Because the flow cross-section of the water passage section 120 is smaller than that of the inlet section 110, the water flow velocity increases in the water passage section 120, causing a negative pressure to be generated in the negative pressure chamber 210, thereby drawing air from the first feedback channel 240 and the second feedback channel 250. The air intake path of the first feedback channel 240 is as follows: air enters from the first outlet hole 225, then passes through the first inlet 244 into the interior of the first feedback channel 240, and finally enters the negative pressure chamber 210 from the first outlet 241. The air intake path of the second feedback channel 250 is as follows: air enters from the second water outlet 235, passes through the second inlet 254 and enters the interior of the second feedback channel 250, and finally enters the negative pressure chamber 210 from the second outlet 251.

[0056] Reference Figure 8 As shown, due to manufacturing precision issues and unstable airflow, the airflow absorbed from the first feedback channel 240 and the second feedback channel 250 is unequal. For example, the air intake from the first feedback channel 240 is greater than that from the second feedback channel 250. Therefore, the airflow blown out from the first feedback channel 240 will deflect the water flow towards the first water outlet channel 220. The water flows along the wall of the first water outlet channel 220 and finally exits from the first water outlet hole 225. Meanwhile, the second water outlet hole 235 either does not produce water or contains only a small amount of water, while the second feedback channel 250 can still draw in air through the second water outlet hole 235.

[0057] Reference Figure 9As shown, when the first water outlet 225 is filled with water, the first feedback channel 240 cannot draw in air, only water. Therefore, some water exits from the first water outlet 225, and some water enters the first feedback channel 240. Due to the weight of the water, the water flow velocity in the first feedback channel 240 is less than the airflow velocity in the second feedback channel 250. (Refer to...) Figure 10 As shown, under the airflow of the second feedback channel 250, the water flow is deflected towards the second water outlet channel 230 and flows along the wall of the second water outlet channel 230, finally exiting from the second water outlet 235. Meanwhile, the first water outlet 225 does not produce water or produces a small amount of water. At this time, the first feedback channel 240 can draw in air through the first water outlet 225.

[0058] When the second water outlet 235 is filled with water, the second feedback channel 250 can only draw in water, not air. Therefore, some water exits from the second water outlet 235, and some water enters the second feedback channel 250. Due to the weight of the water, the water flow velocity in the second feedback channel 250 is lower than the airflow velocity in the first feedback channel 240. (Refer to...) Figure 8 As shown, under the airflow of the first feedback channel 240, the water flow is deflected towards the first outlet channel 220 and flows along the wall of the first outlet channel 220, finally exiting from the first outlet hole 225. At this time, the second outlet hole 235 either does not discharge water or only discharges a small amount of water. Therefore, this scheme can achieve the function of alternating water discharge from the first outlet hole 225 and the second outlet hole 235.

[0059] Understandably, the water outlet device 1000 does not require a gear-like transmission mechanism. The first water outlet 225 and the second water outlet 235 of the water outlet device 1000 can also alternately dispense water, providing a certain massage effect and improving the user experience. The water outlet device 1000 has a simple and reliable structure, is easy to install, has a low failure rate, and a long service life.

[0060] Reference Figure 6 As shown in the embodiment of the present invention, the side of the first water outlet channel 220 near the second water outlet channel 230 is a first connecting surface 226, and the side of the second water outlet channel 230 near the first water outlet channel 220 is a second connecting surface 236. The upper end of the first connecting surface 226 and the upper end of the second connecting surface 236 are connected to form a connecting portion 227. The connecting portion 227 and the negative pressure chamber 210 are spaced apart, that is, the connecting portion 227 is located below the water outlet end of the negative pressure chamber 210. Therefore, a diversion chamber 270 can be formed between the negative pressure chamber 210, the water inlet end of the first water inlet channel, and the water inlet end of the second water inlet channel, so that the water has a sufficiently long distance to be deflected in the diversion chamber 270 and enter the first water outlet channel 220 or the second water outlet channel 230, thereby realizing the function of alternating water outlet.

[0061] Reference Figure 12As shown, in another embodiment of the present invention, the connecting portion 227 may also extend to the water outlet end of the negative pressure chamber 210. To allow the water to travel a sufficiently long distance to create a swaying motion, this can be achieved by lengthening the overall length of the negative pressure chamber 210. Therefore, the water outlet device 1000 may not have the diversion chamber 270 feature, thereby reducing the overall volume of the water outlet device 1000 and allowing it to be used in shower equipment such as shower heads, shoulder sprays, and waist sprays where size is a requirement.

[0062] Reference Figure 6 As shown, in an embodiment of the present invention, the first water outlet channel 220 is provided with a first guide surface 221, and the second water outlet channel 230 is provided with a second guide surface 231. For example, the first guide surface 221 and the second guide surface 231 are spaced apart in the left-right direction. The first guide surface 221 is arc-shaped and protrudes towards the second guide surface 231; the second guide surface 231 is arc-shaped and protrudes towards the first guide surface 221. In some embodiments, the first guide surface 221 and the second guide surface 231 may be symmetrically arranged in the left-right direction.

[0063] It should be noted that, according to the wall adhesion effect (also known as the Coanda effect), due to the viscosity between the fluid and the surface of an object, when the curvature of the object's surface is not large, the fluid will flow along that surface. Therefore, when the fluid passes over a convex surface, it will deviate from its original flow direction and flow along the convex surface instead. By setting the first guide surface 221 and the second guide surface 231 to be arc-shaped, assuming the water flow is biased towards the first outlet channel 220, the water flow can flow along the first guide surface 221 into the first outlet channel 220. The first guide surface 221 acts as a guide, reducing the possibility of water flow deviation, improving the stability of the water flow when it is biased, and ensuring that the first outlet hole 225 can continuously output water for a period of time. The second guide surface 231 also plays a role in guiding the water flow direction, with similar effects and mechanisms to the first guide surface 221, and will not be elaborated further here.

[0064] It should be noted that, assuming the water flows out from the first outlet channel 220, the water flow directly impacts the lower end of the first outlet channel 220, resulting in significant flow loss and insufficient final outlet pressure, leading to a poor user experience. Therefore, referring to... Figure 6 and Figure 11As shown, in an embodiment of the present invention, the first water outlet channel 220 includes a first water outlet section 222 and a first arc-shaped section 223 connected sequentially along the water flow direction. The inner wall of the first arc-shaped section 223 is arc-shaped, and a first water outlet hole 225 is formed in the first arc-shaped section 223. A first inlet 244 is disposed in the first arc-shaped section 223 and communicates with the first water outlet hole 225. The second water outlet channel 230 includes a second water outlet section 232 and a second arc-shaped section 233 connected sequentially along the water flow direction. The inner wall of the second arc-shaped section 233 is arc-shaped, and a second water outlet hole 235 is formed in the second arc-shaped section 233. A second inlet 254 is disposed in the second arc-shaped section 233 and communicates with the second water outlet hole 235. The inner walls of the first arc-shaped section 223 and the second arc-shaped section 233 may be arc-shaped.

[0065] Reference Figure 11 As shown, taking water flowing out of the first outlet channel 220 as an example, the water initially flows along the first guide surface 221. Then, due to changes in curvature and the influence of the water's own weight, the water flow switches to flow along the left side wall of the first outlet section 222, and then rotates counterclockwise within the first arc section 223 before finally exiting the channel or entering the first feedback channel 240. This effectively mitigates the direct impact of water flow on the lower end of the first outlet channel 220, thereby reducing flow loss, increasing outlet pressure, and ensuring a better user experience. It should be noted that the functions and effects of the second outlet section 232 and the second arc section 233 are similar to those of the first outlet section 222 and the first arc section 223, and will not be elaborated further here.

[0066] Continue to refer to Figure 11 As shown, in this embodiment of the invention, the sides of the first arc-shaped segment 223 and the first water outlet segment 222 away from the second water outlet channel 230 are not tangent, that is, the right side walls of the first arc-shaped segment 223 and the first water outlet segment 222 are not tangent. Similarly, the sides of the second arc-shaped segment 233 and the second water outlet segment 232 away from the first water outlet channel 220 are not tangent, that is, the left side walls of the second arc-shaped segment 233 and the second water outlet segment 232 are not tangent. It is understood that if the right side walls of the first arc-shaped segment 223 and the first water outlet segment 222 were tangent, the water flow would easily flow upwards along the tangent when rotating within the first arc-shaped segment 223, thus colliding with the downward-flowing water flow and increasing flow loss. Therefore, the right side walls of the first arc-shaped segment 223 and the first water outlet segment 222 are designed to be non-tangent, and the left side walls of the second arc-shaped segment 233 and the second water outlet segment 232 are non-tangent, effectively improving the water flow collision situation and reducing flow loss.

[0067] Reference Figure 6 and Figure 11As shown, in an embodiment of the present invention, a first protrusion 224 is provided between the first water outlet section 222 and the first arc-shaped section 223. The first protrusion 224 is located on the side of the first water outlet channel 220 near the second water outlet channel 230. The function of the first protrusion 224 is to guide the rotated water flow downward, thus reducing the impact of upward and downward water flow. A second protrusion 234 is provided between the second water outlet section 232 and the second arc-shaped section 233. The second protrusion 234 is located on the side of the second water outlet channel 230 near the first water outlet channel 220. The function of the second protrusion 234 is also to guide the rotated water flow downward. In another embodiment, the first arc-shaped section 223 may be directly tangent to the side of the first water outlet section 222 near the second water outlet channel 230, and the second arc-shaped section 233 and the second water outlet section 232 may be tangent to the side of the second water outlet channel 220.

[0068] When the water outlet device 1000 is used in bathroom fixtures such as shower heads, the shower head has a smaller diameter water outlet hole to increase the water flow rate. However, this brings new problems: for example, when the water flow into the inlet pipe 100 is large, the water cannot be discharged through the first outlet channel 220 in time. Some water (for ease of description, it is called overflow water) overflows from the first outlet channel 220 to the second outlet channel 230, which causes the overflow water to block the second inlet 254. That is, neither the second feedback channel 250 nor the first feedback channel 240 can draw in air, so the direction of water flow in the negative pressure chamber 210 cannot be changed, causing the alternating water flow function of the water outlet device 1000 to fail, that is, the pressure holding capacity is poor.

[0069] To improve the pressure-holding capacity of the water outlet device 1000, refer to Figure 11As shown, in this embodiment of the invention, the first inlet 244 is located above the central axis of the first outlet 225, and the second inlet 254 is located above the central axis of the second outlet 235. It is understood that overflow water flows from the first outlet channel 220 to the second outlet channel 230 and flows along the right side wall of the second outlet channel 230. Because the inner wall of the second arc-shaped segment 233 is arc-shaped, the overflow water will rotate clockwise along the inner wall of the second arc-shaped segment 233, and the water flow speed is relatively slow, making it difficult to form a complete ring. The second inlet 254 is located above the central axis of the second outlet 235, which reduces the probability of the water flow blocking the second inlet 254 during rotation. Therefore, the airflow can still enter from the center of the overflow water's rotation and enter the second feedback channel 250 through the second inlet 254. The situation where overflow water flows from the second outlet channel 230 to the first outlet channel 220 is similar to the above scheme and will not be described again here. Therefore, by designing the first arc segment 223 and the second arc segment 233, and by rationally designing the positions of the first inlet 244 and the second inlet 254 relative to the first arc segment 223 and the second arc segment 233, the situation where water flow simultaneously blocks the first inlet 244 and the second inlet 254 can be reduced, thereby improving the pressure-holding capacity of the water outlet device 1000, resulting in high reliability and a good user experience.

[0070] To further improve the pressure-holding capacity of the water outlet device 1000, refer to Figure 11 As shown, in an embodiment of the present invention, the cross-section at the intersection of the lower wall of the first inlet 244 and the inner wall of the first arc segment 223 is the first cross-section, and the included angle between the first cross-section and the lower wall of the first inlet 244 is α, satisfying 0°<α≤150°. For example, α can be 20°, 45°, 70°, 90°, 120°, etc. The cross-section at the intersection of the lower wall of the second inlet 254 and the inner wall of the second arc segment 233 is the second cross-section, and the included angle between the second cross-section and the lower wall of the second inlet 254 is β, satisfying 0°<β≤150°. For example, β can be 20°, 45°, 70°, 90°, 120°, etc.

[0071] Understandably, when the angle between the first tangential surface and the lower wall of the first inlet 244 is 0°, i.e., the lower wall of the first inlet 244 is tangent to the wall of the first arc segment 223, overflow water easily enters the first feedback channel 240 through the first inlet 244. Similarly, when the angle between the second tangential surface and the lower wall of the second inlet 254 is 0°, i.e., the lower wall of the second inlet 254 is tangent to the wall of the second arc segment 233, overflow water easily enters the second feedback channel 250 through the second inlet 254, making it difficult for either the first feedback channel 240 or the second feedback channel 250 to draw in air. Therefore, a reasonable design of the angle between the first tangential surface and the lower wall of the first inlet 244, and a reasonable design of the angle between the second tangential surface and the lower wall of the second inlet 254, can reduce the amount of overflow water entering the first inlet 244 or the second inlet 254, thereby further improving the pressure-holding capacity of the water outlet device 1000 and enhancing the reliability of the alternating water outlet function.

[0072] To further improve the pressure-holding capacity of the water outlet device 1000, refer to Figure 10 As shown, the width of the water passage section 120 in the left-right direction is W. The inner wall of the first arc-shaped section 223 is an arc surface with a diameter of D1, satisfying: 4W≤D1≤6W. The inner wall of the second arc-shaped section 233 is an arc with a diameter of D2, satisfying: 4W≤D2≤6W. It can be understood that by rationally designing the relationship between the diameter of the inner wall of the first arc-shaped section 223 and the width of the water passage section 120, and by rationally designing the relationship between the diameter of the inner wall of the second arc-shaped section 233 and the width of the water passage section 120, the distance that the overflow water flows through the first arc-shaped section 223 and the second arc-shaped section 233 can be extended, thereby slowing down the flow rate of the overflow water and reducing the possibility of it blocking the first inlet 244 or the second inlet 254. This ensures that one of the first feedback channel 240 and the second feedback channel 250 can absorb air, thereby improving the pressure-holding capacity of the water outlet device 1000 and improving the reliability of the alternating water outlet function of the water outlet device 1000.

[0073] Reference Figure 5As shown, in an embodiment of the present invention, the outer wall of the main body 200 is provided with a diversion section 260. The first feedback channel 240 includes a first feedback segment 242 and a second feedback segment 243 that are connected. The first feedback segment 242 is arranged side by side on the side of the first water outlet channel 220 away from the second water outlet channel 230. One end of the first feedback segment 242 is provided with a first inlet 244, which is located on the side of the first arc-shaped segment 223 away from the second water outlet channel 230, that is, on the right side of the first arc-shaped segment 223. The second feedback channel 250 is formed in the diversion section 260. The second feedback channel 250 is provided with a first outlet 241, which is connected to the negative pressure chamber 210. The second feedback channel 250 includes a third feedback segment 252 and a fourth feedback segment 253 that are connected. The third feedback segment 252 is arranged side by side with the second water outlet channel 230, and the third feedback segment 252 is located on the side of the second water outlet channel 230 away from the first water outlet channel 220. The third feedback section 252 is provided with a second inlet 254, which is located on the side of the second arc-shaped section 233 away from the first outlet channel 220, that is, on the left side of the second arc-shaped section 233. The fourth feedback section 253 is formed in the diversion section 260, and the fourth feedback channel is provided with a second outlet 251, which is connected to the negative pressure chamber 210.

[0074] Understandably, the first feedback section 242 and the first water outlet channel 220 are arranged side by side, and the third feedback section 252 and the second water outlet channel 230 are arranged side by side, making the water outlet device 1000 compact in structure, small in size, and easy to manufacture. During the design phase, the time it takes for the first feedback section 242 and the second feedback section 243 to be filled with airflow can be controlled by adjusting the volumes of the first feedback section 242 and the third feedback section 252, as well as the opening sizes of the first inlet 244 and the second inlet 254, thereby controlling the frequency of alternating water outlets in the water outlet device 1000. The second feedback section 243 and the fourth feedback section 253 are located in the flow divider 260 to facilitate changing the direction of the airflow.

[0075] Reference Figure 6 As shown, in an embodiment of the present invention, the flow cross-section of the first water outlet 225 and the second water outlet 235 can be circular, which facilitates water rotation along the walls of the first water outlet 225 and the second water outlet 235, reducing flow loss. (Refer to...) Figure 12As shown, in another embodiment of the present invention, the flow cross-section of the first water outlet 225 and the second water outlet 235 can also be rectangular, and the first water outlet pipe 300 and the second water outlet pipe 400 are also rectangular. It is understood that if the flow cross-section of the first water outlet 225 and the second water outlet 235 is circular, the water rotates along the circular walls of the first water outlet pipe 300 and the second water outlet pipe 400, resulting in centrifugal force. When water exits from the first water outlet pipe 300 and the second water outlet pipe 400, the water sprays out in an umbrella-like pattern, resulting in a small impact force. However, when the flow cross-section of the first water outlet 225 and the second water outlet 235 is rectangular, water flow rotation can be reduced, thereby ensuring concentrated water output and increasing the impact force of the water, thus improving the user experience. Of course, the flow cross-section of the first water outlet 225 and the second water outlet 235 can also be other shapes, such as elliptical or triangular, depending on the specific circumstances.

[0076] Reference Figure 4 As shown in the embodiment of the present invention, the flow cross-sectional area of ​​the water passage section 120 is S1, and the flow cross-sectional area of ​​the outlet end of the negative pressure chamber 210 is S2, satisfying: 1.5S1≤S2≤2.5S1. It is understood that if S2 is less than 1.5S1, the water output of the water outlet device 1000 is likely insufficient, resulting in a poor massage effect. If S2 is greater than 1.5S1, the opening of the outlet end of the negative pressure chamber 210 is too large, making it difficult to form a negative pressure annular suction, thus hindering the implementation of the alternating water output function. Therefore, a reasonable design of the relationship between the flow cross-sectional area of ​​the water passage section 120 and the flow cross-sectional area of ​​the outlet end of the negative pressure chamber 210 is necessary to ensure the water output of the water outlet device 1000 while simultaneously ensuring the implementation of the alternating water output function.

[0077] Continue to refer to Figure 4 As shown, in an embodiment of the present invention, the flow cross-sectional area of ​​the inlet end of the first water outlet channel 220 is S3, satisfying: 1.2S1≤S3≤1.5S1. It can be understood that if S3 is less than 1.2S1, the opening of the inlet end of the first water outlet channel 220 is too small, making it difficult to completely guide the water entering from the inlet pipe 100, causing some water to overflow into the second water outlet channel 230. If S3 is greater than 1.5S1, the opening of the inlet end of the first water outlet channel 220 is too large, and when water enters the right side wall of the first water outlet channel 220 along the first guide surface 221, some water easily flows back out along the left side wall of the first water outlet channel 220. Therefore, a reasonable design of the flow cross-sectional area of ​​the inlet end of the first water outlet channel 220 is necessary to reduce backflow, overflow, and other issues, thereby improving the reliability of the water outlet device 1000.

[0078] Reference Figure 7As shown, in this embodiment of the invention, the flow cross-sectional area of ​​the inlet end of the second water outlet channel 230 is S4, satisfying: 1.2S1≤S4≤1.5S1. It is understood that if S4 is less than 1.2S1, the opening of the inlet end of the second water outlet channel 230 is too small, making it difficult to completely guide the water entering from the inlet pipe 100, causing some water to overflow into the first water outlet channel 220. If S4 is greater than 1.5S1, the opening of the inlet end of the second water outlet channel 230 is too large, and when the water flows into the second water outlet channel 230 along the second guide surface 231, some water easily flows back out along the opposite surface and into the first water outlet channel 220. Therefore, rationally designing the relationship between the flow cross-sectional area of ​​the inlet end of the second water outlet channel 230 and the flow cross-sectional area of ​​the water passage section 120 can reduce backflow and overflow.

[0079] Reference Figure 4 As shown in the embodiment of the present invention, the flow cross-section of the inlet section 110 gradually decreases along the water inlet direction, while the flow cross-section of the through section 120 can remain unchanged. Therefore, when water enters the inlet section 110, water resistance can be reduced, and flow loss can be minimized. In another embodiment, the flow cross-section of the inlet section 110 can also remain unchanged, while the flow cross-section of the through section 120 is smaller than that of the inlet section 110. The appropriate solution can be selected based on the actual situation, and the present invention will not specifically limit it here.

[0080] One embodiment of the bathroom device of the present invention can be a waist spray, shoulder spray, overhead spray, etc. The bathroom device includes the water outlet device 1000 of the above embodiment. The bathroom device of the present invention adopts the water outlet device 1000 of the above embodiment. Water flows in from the inlet pipe 100 and passes through the inlet section 110, the water passage section 120 and the negative pressure chamber 210 in sequence. Since the flow cross-section of the inlet section 110 gradually decreases, the flow velocity of the water in the water passage section 120 increases, causing negative pressure to be generated in the negative pressure chamber 210, thereby drawing air from the first feedback channel 240 and the second feedback channel 250. Due to manufacturing precision issues and unstable airflow, the airflow absorbed from the first feedback channel 240 and the second feedback channel 250 is unequal. For example, the air intake from the first feedback channel 240 is greater than that from the second feedback channel 250. Therefore, the airflow blowing out from the first feedback channel 240 will deflect the water flow towards the first water outlet channel 220. The water flows along the wall of the first water outlet channel 220 and finally exits from the first water outlet hole 225, while the second water outlet hole 235 either does not produce water or contains only a small amount of water. When the first water outlet hole 225 is full of water, the first feedback channel 240 can only absorb water and cannot absorb air. Under the influence of the water's own weight, the water flow velocity in the first feedback channel 240 is less than the airflow velocity in the second feedback channel 250. Therefore, under the airflow in the second feedback channel 250, the water flow is deflected towards the second water outlet channel 230 and flows along the wall of the second water outlet channel 230, finally exiting from the second water outlet hole 235, while the first water outlet hole 225 either does not produce water or produces only a small amount of water. Thus, the water outlet device 1000 does not require a gear-like transmission mechanism, and the first water outlet hole 225 and the second water outlet hole 235 of the water outlet device 1000 can also alternately output water, providing a certain massage effect. The water outlet device 1000 has a simple and reliable structure, is easy to install, has a low failure rate, and a long service life.

[0081] Since the bathroom equipment adopts all the technical solutions of the water outlet device 1000 of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0082] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A water outlet device, characterized by The utility model relates to a water inlet pipe, a main body, a first feedback channel and a second feedback channel, the water inlet end of the negative pressure cavity is communicated with the water passing section, the first water outlet channel and the second water outlet channel are side by side and arranged at the water outlet end of the negative pressure cavity, the first water outlet channel is equipped with the first water outlet hole, and the second water outlet channel is equipped with the second water outlet hole, the first feedback channel is used for communicating the first water outlet channel with the negative pressure cavity, the first outlet of the first feedback channel is located at the side wall of the side of the negative pressure cavity close to the second water outlet channel, the airflow of the first outlet can guide the water flow of the negative pressure cavity to the side of the second water outlet channel, the second feedback channel is used for communicating the second water outlet channel with the negative pressure cavity, the second outlet of the second feedback channel is located at the side wall of the side of the negative pressure cavity close to the first water outlet channel, the airflow of the second outlet can guide the water flow of the negative pressure cavity to the side of the first water outlet channel, the side of the first water outlet channel close to the second water outlet channel is the first connecting face, the side of the second water outlet channel close to the first water outlet channel is the second connecting face, the upper end of the first connecting face is connected with the upper end of the second connecting face and forms a connecting part, the connecting part is spaced apart from the negative pressure cavity or extends to the water inlet end of the negative pressure cavity, the main body is equipped with a first water outlet pipe and a second water outlet pipe, the inner cavity of the first water outlet pipe is communicated with the first water outlet hole, and the inner cavity of the second water outlet pipe is communicated with the second water outlet hole. The first water outlet channel and the second water outlet channel have oppositely arranged first guide surfaces and second guide surfaces, the first guide surface protrudes towards the second guide surface and extends to the water outlet end of the negative pressure cavity, and the second guide surface protrudes towards the first guide surface and extends to the water outlet end of the negative pressure cavity. The first water outlet channel comprises a first water outlet section and a first arc-shaped section connected with each other, the inner wall of the first arc-shaped section is arc-shaped, the first arc-shaped section is formed with the first water outlet hole, and the first inlet of the first feedback channel is arranged on the first arc-shaped section.

2. The water outlet device according to claim 1, characterized in that The second water outlet channel comprises a second water outlet section and a second arc-shaped section connected with each other, the inner wall of the second arc-shaped section is arc-shaped, the second arc-shaped section is formed with the second water outlet hole, and the second inlet of the second feedback channel is arranged on the second arc-shaped section.

3. The water outlet device according to claim 1, characterized in that The first inlet is located above the central axis of the first water outlet hole, the intersection between the lower wall surface of the first inlet and the section of the inner wall of the first arc-shaped section is a first section, the included angle between the first section and the lower wall surface of the first inlet is alpha, and 0° < alpha < 150° is satisfied. The second inlet is located above the central axis of the second water outlet hole, the intersection between the lower wall surface of the second inlet and the section of the inner wall of the second arc-shaped section is a second section, the included angle between the second section and the lower wall surface of the second inlet is beta, and 0° < beta < 150° is satisfied.

4. The water outlet device according to claim 3, characterized in that ​ ​ 5. The water outlet device according to claim 3 or 4, characterized in that The water passing section has a width W, and the inner wall of the first arc-shaped section is a circular arc with a diameter D1, and 4W≤D1≤6W is satisfied, and / or The inner wall of the second arc-shaped section is a circular arc with a diameter D2, and 4W≤D2≤6W is satisfied.

6. The water outlet device according to claim 1, characterized in that The outer wall of the main body is provided with a shunt part, the first feedback channel comprises a first feedback section and a second feedback section connected in series, the first feedback section is arranged side by side on the side of the first water outlet channel away from the second water outlet channel, and the second feedback section is formed in the shunt part and communicates with the negative pressure cavity; and / or The second feedback channel comprises a third feedback section and a fourth feedback section connected in series, the third feedback section is arranged side by side on the side of the second water outlet channel away from the first water outlet channel, and the fourth feedback section is formed in the shunt part and communicates with the negative pressure cavity.

7. The water outlet device according to claim 1, characterized in that The flow area of the water passing section is S1, and the flow area of the water outlet end of the negative pressure cavity is S2, and 1.5S1≤S2≤2.5S1 is satisfied.

8. The water outlet device according to claim 1, characterized in that The flow area of the water passing section is S1, and the flow area of the water inlet end of the first water outlet channel is S3, and 1.2S1≤S3≤1.5S1 is satisfied, and / or The flow area of the water inlet end of the second water outlet channel is S4, and 1.2S1≤S4≤1.5S1 is satisfied.

9. The water outlet device according to claim 1, characterized in that The cross section of the water inlet section gradually decreases along the water inlet direction.

10. A sanitary device, characterized in that The water outlet device as claimed in any one of claims 1 to 9.

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