Spray head and water outlet device

Abstract

This invention discloses a spray nozzle and water outlet device, relating to the technical field of water outlet devices. The spray nozzle includes a water distribution body, a flow divider, a flow rectifier, and a cover. Water enters the flow divider chamber through one of the outlets of the first water path, and then flows into the first inlet hole and the flow stabilizing hole. Water through the first inlet hole enters the second inlet hole of the flow rectifier, thus forming impact water. Water through the flow stabilizing hole enters the flow stabilizing chamber, and after being guided by the flow ribs, the water enters the second water path through the flow rectifier hole. The outlet end of the second water path is annular, finally forming a surrounding water that envelops the impact water. When the user needs to rinse the sink or dishes, the impact water mainly serves to rinse, while the surrounding water can block the water splashes generated by the impact water, effectively reducing water splashing and thus improving the user experience.

Description

[0001] Case information

[0002] This application is a divisional application based on Chinese patent application filed on August 18, 2023, with application number 202311044636.1 and entitled "Sprinkler and Water Discharge Device". Technical Field

[0003] This invention relates to the field of water outlet device technology, and particularly to a nozzle and water outlet device. Background Technology

[0004] In the field of kitchen faucets and other water outlet devices, some faucets are equipped with spray nozzles at the spout to improve the impact performance of the faucet. These nozzles can generate a stronger water flow, making it easier to rinse sinks, dishes, etc. While these spray nozzles can create a powerful water flow, they also result in water splashing during rinsing, leading to a poor user experience. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a nozzle capable of simultaneously generating an impact water flow and a surrounding water flow that can block the water splashes generated by the impact water flow, thereby reducing water splashing.

[0006] The present invention also proposes a water outlet device having the above-mentioned nozzle.

[0007] According to a first aspect of the present invention, a nozzle includes: a water-distributing body having a first water passage having at least one outlet; a flow-distributing plate having a flow-distributing cavity communicating with one of the outlets, the flow-distributing plate having a first inlet hole and a flow-stabilizing hole communicating with the flow-distributing cavity; a flow-stabilizing plate having a flow-stabilizing cavity communicating with the flow-stabilizing hole, the sidewall of the flow-stabilizing cavity having a plurality of flow-stabilizing ribs and a plurality of flow-stabilizing holes, the plurality of flow-stabilizing ribs and the plurality of flow-stabilizing holes being spaced apart along the periphery of the flow-stabilizing cavity, the flow-stabilizing ribs being closer to the center of the flow-stabilizing cavity than the flow-stabilizing holes along the radial direction of the flow-stabilizing cavity, the flow-stabilizing plate having a second inlet hole communicating with the first inlet hole; and a cover having a second water passage having an inlet end surrounding and communicating with the plurality of flow-stabilizing holes, the outlet end of the second water passage being annular and configured to spray a second water flow that envelops the first water flow sprayed from the second inlet hole.

[0008] The nozzle according to embodiments of the present invention has at least the following beneficial effects:

[0009] By incorporating a water distribution body, a diversion plate, a rectifier plate, and a cover, water enters the diversion chamber through one of the outlets in the first water path, and then flows into the first inlet and the stabilizing hole. Water entering through the first inlet enters the second inlet of the rectifier plate, creating a powerful first water flow. Water entering the stabilizing hole enters the stabilizing chamber, passes through the rectifier ribs, and then enters the second water path. Within the stabilizing chamber, the water is guided by multiple rectifier ribs, reducing eddies and transforming the chaotic water flow into a more regular pattern. Simultaneously, the flow rate is slowed, causing the water to form a ring after entering the second water path through the rectifier hole, thus creating a second water flow that envelops the first flow. When users need to rinse the sink or dishes, the impact water primarily serves a rinsing function, while the enveloping water helps to block the splashes generated by the impact water, effectively reducing water splashing and improving the user experience.

[0010] According to some embodiments of the present invention, the flow cross-sectional area of ​​the first water inlet is S1, and the flow cross-sectional area of ​​the flow stabilizing hole is S2, satisfying: 1 / 5≤S1 / S2≤1 / 2.

[0011] According to some embodiments of the present invention, at least one rectification hole is provided between every two adjacent rectification ribs.

[0012] According to some embodiments of the present invention, both the rectifier rib and the rectifier hole are located on the bottom wall of the flow stabilizing cavity.

[0013] According to some embodiments of the present invention, a flow stabilizing plate, a flow limiting plate, or a filter plate is installed inside the flow stabilizing hole.

[0014] According to some embodiments of the present invention, the cover includes a face cover and an inner core, the face cover having a first central hole, the inner core being installed in the first central hole, and the inner wall of the first central hole and the outer wall of the inner core forming the second water channel.

[0015] According to some embodiments of the present invention, the water inlet end of the first central hole is constructed as an arc-shaped hole segment with a gradually decreasing inner diameter.

[0016] According to some embodiments of the present invention, the first central hole includes a first arc-shaped segment, a transition segment, and a second arc-shaped segment connected sequentially along the water flow direction, wherein the inner diameter of the first arc-shaped segment gradually decreases and the inner diameter of the second arc-shaped segment gradually increases.

[0017] According to some embodiments of the present invention, the gap between the inner wall of the transition section and the outer wall of the inner core is f, and the first central hole further includes a water outlet section connected to the second arc-shaped section, the gap between the inner wall of the water outlet section and the outer wall of the inner core is g, satisfying f≥g.

[0018] According to some embodiments of the present invention, the outer wall of the inner core is provided with a stepped surface, the stepped surface being located in the second arc-shaped segment, so that the second water channel forms a bent structure.

[0019] According to some embodiments of the present invention, the inner core includes a sleeve and a locking cover. One end of the sleeve is fixedly connected to the rectifier plate, and the locking cover is fixedly connected to the other end of the sleeve. The locking cover has a molding surface at the end away from the sleeve, and the water flow of the second water channel forms the second water flow through the molding surface.

[0020] According to some embodiments of the present invention, the forming surface is an outwardly convex arc surface or an outwardly inclined slope.

[0021] According to some embodiments of the present invention, the inner cavity of the sleeve is isolated from the second water inlet and the rectifier hole, the locking cover is provided with a second central hole communicating with the inner cavity of the sleeve; the first water passage is provided with a first water outlet and a second water outlet, the first water outlet communicating with the diversion cavity, and the nozzle is provided with a third water passage communicating with the second water outlet and the inner cavity of the sleeve.

[0022] According to some embodiments of the present invention, the second water inlet is connected to a connecting pipe, the connecting pipe being sealed to the rectifier plate and passing through the second central hole.

[0023] According to some embodiments of the present invention, the first water passage is provided with a first water outlet and a third water outlet, the first water outlet is connected to the diversion cavity, the cover is provided with a water storage cavity, the water storage cavity is arranged around the first central hole, the cover is provided with a plurality of first water outlets connected to the water storage cavity, and the nozzle is provided with a fourth water passage connected to the third water outlet and the water storage cavity.

[0024] According to some embodiments of the present invention, the first water path includes a water inlet, a water distribution section, and a first water outlet, a second water outlet, and a third water outlet; the nozzle further includes a button, a first water distribution shaft, and a second water distribution shaft, the first water distribution shaft and the second water distribution shaft being mounted on the water distribution section; the button is configured to control the position of the first water distribution shaft or the second water distribution shaft, so that the water inlet selectively connects to the first water outlet, the second water outlet, or the third water outlet.

[0025] According to a second aspect of the present invention, the water outlet device includes the nozzle described in the above embodiments.

[0026] The water outlet device according to embodiments of the present invention has at least the following beneficial effects:

[0027] The nozzle using the first embodiment comprises a water-distributing body, a flow-distributing plate, a flow-rectifying plate, and a cover. Water enters the distribution chamber through one of the outlets of the first water path, and then flows into the first inlet and the flow-stabilizing hole. Water passing through the first inlet enters the second inlet of the flow-rectifying plate, forming a first water flow with a relatively large impact force. Water passing through the flow-stabilizing hole enters the flow-stabilizing chamber, and after passing through the flow-rectifying ribs, it enters the second water path. The water in the flow-stabilizing chamber is guided by multiple flow-rectifying ribs, reducing the water vortex and transforming the water from a disordered state into a more regular state. Simultaneously, the water flow velocity is slowed, causing the water to form a ring after entering the second water path through the flow-rectifying hole, thus forming a second water flow that envelops the first water flow. When the user needs to rinse the sink or dishes, the impact water primarily serves a rinsing function, while the enveloping water effectively blocks the splashes generated by the impact water, reducing water splashing and improving the user experience.

[0028] 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

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0030] Figure 1 This is a schematic diagram of the structure of a nozzle according to an embodiment of the present invention;

[0031] Figure 2 This is a simplified water circuit diagram of a nozzle according to an embodiment of the present invention;

[0032] Figure 3 This is an exploded schematic diagram of a nozzle according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the bottom of a nozzle according to an embodiment of the present invention;

[0034] Figure 5 for Figure 4 Sectional view at point AA;

[0035] Figure 6 This is an exploded view of a shunt plate and a rectifier plate according to an embodiment of the present invention;

[0036] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0037] Figure 8 for Figure 7 Enlarged schematic diagram of some of the structures in the diagram;

[0038] Figure 9 This is a top view of a shunt plate according to another embodiment of the present invention;

[0039] Figure 10 This is a top view of a rectifier segment according to an embodiment of the present invention;

[0040] Figure 11 This is a vector diagram showing the water flow state within the diversion cavity according to an embodiment of the present invention;

[0041] Figure 12 This is a vector diagram of the water flow state inside a flow stabilization cavity according to an embodiment of the present invention;

[0042] Figure 13 This is a vector diagram showing the water flow state inside the rectifier cavity according to an embodiment of the present invention;

[0043] Figure 14 This is a vector diagram showing the water flow state within the guide cavity according to an embodiment of the present invention.

[0044] Figure 15 for Figure 4 Sectional view at point BB;

[0045] Figure 16 This is a cross-sectional view of a spray nozzle discharging water according to an embodiment of the present invention;

[0046] Figure 17 This is a schematic diagram of the structure of a locking cover according to an embodiment of the present invention;

[0047] Figure 18 This is a schematic diagram of the structure of a faceplate according to an embodiment of the present invention;

[0048] Figure 19 This is a schematic diagram of the structure of a water distribution body according to an embodiment of the present invention;

[0049] Figure 20 for Figure 19 The diagram shows another structural view of the water distribution body.

[0050] Figure 21 This is a schematic diagram showing the water pressure and flow rate at the outlet of each chamber in different embodiments of the present invention.

[0051] Icon labels:

[0052] 1000 nozzles;

[0053] Water distribution body 100; First water channel 110; First outlet 111; Second outlet 112; Third outlet 113; First water pipe 120; Third water channel 121; Fourth water channel 130; Inlet 140; Water distribution section 150; First water distribution chamber 151; Second water distribution chamber 152; Rotating shaft 153; First baffle 160; Second baffle 170; First water passage chamber 180; Second water passage chamber 190;

[0054] Flow divider 200; Flow divider cavity 210; First water inlet 220; Flow stabilizer 230; Flow stabilizer 231; Through hole 240;

[0055] Rectifier plate 300; Flow stabilizing cavity 310; Rectifier rib 311; Rectifier hole 312; Second water inlet hole 320; Second water pipe 330; Water passage hole 340;

[0056] Cover 400; Second water passage 410; Bending structure 411; Water outlet section 412; Flow guide cavity 413; Top cover 420; First central hole 421; First arc-shaped section 422; Transition section 423; Second arc-shaped section 424; Water storage cavity 425; First water outlet 426; Rectifying cavity 427; Inner core 430; Stepped surface 431; Sleeve 432; Locking cover 433; Molded surface 434; Second central hole 435; Sealing element 436; Mounting part 4361; Abutting part 4362; Connecting pipe 437; Protrusion 438; Fourth water outlet 439; Second water outlet 440;

[0057] Aerator 500; Aerator housing 510; Third water outlet 511; Aerator core 520;

[0058] Button 600; First water distribution shaft 610; Second water distribution shaft 620; First spring 630; Second spring 640;

[0059] 700 for housing; 710 for impact water; 720 for encapsulation water; 730 for aerated water; 740 for shower water. Detailed Implementation

[0060] 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.

[0061] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0062] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0063] 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.

[0064] Reference Figure 1 As shown, a spray head 1000 according to one embodiment of the present invention can be applied to water outlet devices such as faucets. The spray head 1000 includes a housing 700, a button 600, and a cover 400. The button 600 is disposed on the housing 700, and the cover 400 is disposed at the lower end of the housing 700. The housing 700 serves to protect and improve aesthetics. Water enters from the upper end of the spray head 1000 and finally exits from the cover 400. The cover 400 is provided with a first water outlet 426, a second water outlet 440, a third water outlet 511, and a fourth water outlet 439.

[0065] Reference Figure 2 As shown, the spray head 1000 can be switched to different water output states by controlling button 600. For example, the first water outlet 426 is used to spray shower water 740, the second water outlet 440 is used to spray enveloping water 720, the third water outlet 511 is used to spray aerated water 730, and the fourth water outlet 439 is used to spray impingement water 710. The spray head 1000 has three water output states: First state: Enveloping water 720 and impingement water 710 are sprayed simultaneously, such as... Figure 5 As shown; Second state: 730ml of sparkling water is produced separately, as shown. Figure 15 As shown; Third state: 740 water flow from the shower head alone, as shown. Figure 16 As shown.

[0066] When the user does not press button 600, the shower head 1000 is in its default water output state, such as the second state, in which it outputs aerated water 730. When the user presses and holds the upper part of button 600, the shower head 1000 switches to the first state, simultaneously outputting enveloping water 720 and jet water 710. When the user presses and holds the lower part of button 600, the shower head 1000 switches to the third state, outputting only shower water 740. After releasing the button, the shower head 1000 automatically switches back to the second state. It is understandable that this design, with the shower head 1000's default state being aerated water 730, reduces water waste. If the default state were the first state, because the enveloping water 720 and jet water 710 have a strong water flow, when the shower head 1000's outlet is facing away from the basin, water could easily spray out of the basin when the faucet is turned on, and water would be wasted if the water is left running for extended periods. Therefore, setting the shower head 1000's default state to the second state improves the user experience.

[0067] In order for nozzle 1000 to simultaneously spray enveloping water 720 and impact water 710, refer to Figure 3 and Figure 4As shown, the nozzle 1000 of this embodiment includes a water distribution body 100, a flow divider 200, a flow straightener 300, and a cover 400. (Refer to...) Figure 5 As shown, the water distribution body 100 is provided with a first water passage 110, and the first water passage 110 is provided with a first water outlet 111. The diverter plate 200 forms a diverter cavity 210, a first water inlet 220, and a flow stabilizing hole 230. The diverter cavity 210 connects the first water outlet 111, the first water inlet 220, and the flow stabilizing hole 230. Therefore, water enters from the first water passage 110, enters the diverter cavity 210 through the first water outlet 111, and then enters the first water inlet 220 and the flow stabilizing hole 230 from the diverter cavity 210.

[0068] Reference Figure 6 and Figure 7 As shown, the rectifier 300 has a flow-stabilizing cavity 310 communicating with the flow-stabilizing orifice 230. The sidewall of the flow-stabilizing cavity 310 is provided with multiple flow-stabilizing ribs 311 and multiple flow-stabilizing orifices 312, which are spaced apart along the periphery of the flow-stabilizing cavity 310. Along the radial direction of the flow-stabilizing cavity 310, the flow-stabilizing ribs 311 are closer to the center of the flow-stabilizing cavity 310 than the flow-stabilizing orifices 312. The rectifier 300 also has a second water inlet 320, which communicates with the first water inlet 220. Water enters from the first water inlet 220 into the second water inlet 320, ultimately forming a first water flow, which can be impinging water 710.

[0069] It should be noted that the sidewall of the flow stabilizing cavity 310 includes the peripheral wall and the bottom wall of the flow stabilizing cavity 310. For example, the flow rectifier 311 can be set on the bottom wall of the flow stabilizing cavity 310, and the flow rectifier 312 can be set on the peripheral wall of the flow stabilizing cavity 310; or both the flow rectifier 311 and the flow rectifier 312 can be set on the bottom wall of the flow stabilizing cavity 310. The appropriate solution should be selected according to the actual situation.

[0070] Reference Figure 7 As shown, the cover 400 is provided with a second water passage 410. The inlet end of the second water passage 410 is arranged around a plurality of rectifying holes 312, and the second water passage 410 and the plurality of rectifying holes 312 are connected. The outlet end of the second water passage 410 is annular and configured to spray a second water stream. The second water stream can be a wrapping water 720, which wraps the impact water 710.

[0071] Understandably, with the above scheme, the nozzle 1000, by setting up a water distribution body 100, a flow divider 200, a flow rectifier 300, and a cover 400, allows water to enter the flow distribution chamber 210 through the first outlet 111, and then flow into the first inlet hole 220 and the flow stabilizing hole 230 respectively. Water passing through the first inlet hole 220 enters the second inlet hole 320 of the flow rectifier 300, thus forming impact water 710 with a relatively large impact force. Water passing through the flow stabilizing hole 230 enters the flow stabilizing chamber 310, and after passing through the flow rectifier 311, the water enters the second water passage 410 through the flow rectifier hole 312. The water in the flow stabilizing chamber 310 is guided by multiple flow rectifiers 311, reducing the water vortex ring, changing the water from a disordered and chaotic state to a more regular state, and slowing down the water flow rate, so that the water enters the second water passage 410 through the flow rectifier hole 312 and forms a ring, thus forming the enveloping water 720 that surrounds the impact water 710. When users need to rinse the sink and dishes, the impact water 710 mainly serves to rinse, while the encapsulating water 720 can block the water splashes generated by the impact water 710, effectively reducing water splashing and thus improving the user experience.

[0072] In an embodiment of the present invention, the flow cross-sectional area of ​​the inlet end of the first water inlet hole 220 is S1, and the flow cross-sectional area of ​​the inlet end of the flow stabilizing hole 230 is S2, satisfying: 1 / 5 ≤ S1 / S2 ≤ 1 / 2. It can be understood that, referring to... Figure 6As shown, since both the first inlet hole 220 and the flow stabilizing hole 230 are located within the diversion cavity 210, water flow will compete for flow within the diversion cavity 210. The flow cross-sections of the first inlet hole 220 and the flow stabilizing hole 230 determine the water output effect of the impact water 710 and the enveloping water 720. The ratio S1 / S2 of the flow cross-sectional area S1 at the inlet end of the first inlet hole 220 and the flow cross-sectional area S2 at the inlet end of the flow stabilizing hole 230 is not directly proportional to the water output effect of the impact water 710 and the enveloping water 720. That is, if the flow cross-section at the inlet end of the first inlet hole 220 decreases by a certain proportion, the flow velocity of the impact water 710 does not decrease by the same proportion; similarly, if the flow cross-section at the inlet end of the flow stabilizing hole 230 increases by a certain proportion, the flow velocity of the enveloping water 720 does not increase by the same proportion. Furthermore, the change in water pattern is not directly proportional. Because the water flowing out of the stabilizing orifice 230 needs to pass through the stabilizing chamber 310 and then through the second water path 410 to form an annular outlet, the water flow rate of the stabilizing orifice 230 is different, and the relationship between the water flow rate and the water pattern of the enveloping water 720 is non-linear. Furthermore, the water flow rate of the first inlet orifice 220 also affects the water flow rate and pressure of the stabilizing orifice 230. In summary, the design of the opening size of the stabilizing orifice 230 and the opening size of the first inlet orifice 220 cannot be simply obtained through a limited number of experiments. In actual design, the inventors used CAE fluid analysis, combined with the specific structure of the nozzle 1000 and the actual usage requirements of the product, such as but not limited to rinsing time, water pattern, impact force, cleaning efficiency, and usage scenarios, to analyze and design S1 / S2 to satisfy a ratio greater than or equal to 1 / 5 and less than or equal to 1 / 2. For example, under the conditions of water pressure of 1.0KG and flow rate of 10L, using the above design, the impact water 710 has a better rinsing effect at a flow rate of 3.75m / s; the enveloping water 720 has a better rinsing and splash prevention effect at a flow rate of 2.5m / s.

[0073] When S1 / S2 < 1 / 5, the opening of the stabilizing orifice 230 is relatively large, easily drawing away most of the water, resulting in a flow velocity of less than 3.75 m / s for the impact water 710, meaning the impact force is weak and it is difficult to remove some stubborn dirt. When S1 / S2 > 1 / 2, the opening of the stabilizing orifice 230 is relatively small, and most of the water enters the second inlet orifice 320 through the first inlet orifice 220, resulting in a flow velocity of more than 3.75 m / s for the impact water 710. This intensifies the pressure difference between the inside and outside of the encapsulated water 720, reducing the maximum diameter of the encapsulated water 720, and even causing it to mix directly with the impact water 710 into a large flow, resulting in splashing and a poor user experience. Therefore, a reasonable design of the flow cross-section of the first inlet orifice 220 and the stabilizing orifice 230 is beneficial to meeting the flow velocity requirements of the impact water 710 and the encapsulated water 720, thereby improving the user experience.

[0074] Reference Figure 3 and Figure 5As shown, in an embodiment of the present invention, the cover 400 includes a face cover 420 and an inner core 430. The face cover 420 has a first central hole 421, and the inner core 430 is installed in the first central hole 421. The inner wall of the first central hole 421 and the outer wall of the inner core 430 form a second water passage 410. By using the face cover 420 and the inner core 430, the manufacturing and assembly of the valve core are facilitated, installation efficiency is improved, the structural design is reasonable, and the reliability is high.

[0075] Reference Figure 7 As shown in the embodiment of the present invention, along the direction away from the rectifying orifice 312, the water inlet end of the first central orifice 421 is an arc-shaped orifice section with a gradually decreasing inner diameter. It can be understood that the arc-shaped orifice section can reverse the horizontal force of the water in the rectifying orifice 312 from the small vortex ring to the lateral force, which is beneficial to the transformation of water from a turbulent state to a laminar state.

[0076] Reference Figure 8 As shown, in an embodiment of the present invention, along the water flow direction, the first central hole 421 includes a first arc-shaped segment 422, a transition segment 423, and a second arc-shaped segment 424 connected in sequence. The inner diameter of the first arc-shaped segment 422 gradually decreases, the inner diameter of the transition segment 423 can remain constant, or it can gradually increase or decrease, while the inner diameter of the second arc-shaped segment 424 gradually increases. The outer wall of the inner core 430 is provided with a stepped surface 431, which is located near the second arc-shaped segment 424, so that the second water channel 410 forms a bent structure 411. It can be understood that the area between the first arc-shaped segment 422 and the outer wall of the inner core 430 is the rectifier cavity 427, and the inner diameter of the first arc-shaped segment 422 gradually decreases. For example, the first arc-shaped segment 422 is an arc segment with a radius of R. When R≥2mm, it is beneficial to change the horizontal force of the water in the rectifier orifice 312 into a lateral force, which facilitates the transition of the water from a turbulent state to a laminar state. After passing through the transition section 423, the water then passes through the bending structure 411. The bending structure 411 can slow down the water flow velocity, making the pressure points of the water more balanced.

[0077] Continue to refer to Figure 8 As shown, in the embodiment of the present invention, the inner diameter of the transition section 423 remains unchanged, the gap between the transition section 423 and the outer wall of the inner core 430 is f, the first central hole 421 also includes a water outlet section 412 connected to the second arc-shaped section 424, the distance between the inner wall of the water outlet section 412 and the outer wall of the inner core 430 is g, satisfying f≥g. Therefore, in the second water channel 410, the flow cross-section at the water outlet section 412 is smaller than the flow cross-section at the transition section 423, so that the encapsulated water 720 has a certain impact force, increasing the forming length of the encapsulated water 720, and the impact force is balanced, thus ensuring the anti-splash effect while improving the cleaning efficiency.

[0078] In an embodiment of the present invention, the area between the inner wall of the water outlet section 412 and the outer wall of the inner core 430 is a flow guiding cavity 413. The area ratio between the flow passage section S3 of the flow guiding cavity 413 and the flow passage section S4 of all the flow straightening holes 312 is 3 / 4, which can stabilize the flow velocity of the encapsulated water 720 at about 2.5m / s, which is beneficial for rinsing while reducing the splashing of the impact water 710.

[0079] Reference Figure 6 As shown, in an embodiment of the present invention, the flow stabilizing hole 230 can be circular to facilitate the installation of the flow stabilizing plate 231. Due to fluctuations in water pressure, the water pressure within the nozzle 1000 can easily fluctuate, resulting in unstable water flow. Since the enveloping water 720 needs to envelop the impacting water 710, unstable water pressure can easily cause the enveloping water 720 to fail to form a continuous ring, leading to splashing of the impacting water 710. Therefore, a flow stabilizing plate 231 is installed in the flow stabilizing hole 230 to reduce water pressure fluctuations and stabilize the water flow. It should be noted that, in addition to the flow stabilizing plate 231, the flow stabilizing hole 230 can also be fitted with a flow restrictor or a filter screen. The flow restrictor reduces the water flow rate, while the filter screen filters the water, making the enveloping water clearer and more transparent. The appropriate solution should be selected based on the actual situation. It should also be noted that, in addition to being circular, the flow stabilizing hole 230 can also be... Figure 9 The elongated arc shape shown can also be a square or other shapes; the appropriate shape should be chosen based on the specific circumstances.

[0080] Reference Figure 10 As shown, in an embodiment of the present invention, at least one flow-rectifying hole 312 is provided between every two adjacent flow-rectifying ribs 311. For example, a flow-rectifying hole 312 is provided between every two adjacent flow-rectifying ribs 311. It can be understood that when water enters the flow-stabilizing cavity 310, the water flow direction is relatively chaotic, and the flow-rectifying ribs 311 play a role in guiding the water flow direction, so that the water changes from a disordered and chaotic state to a more regular state. Therefore, a flow-rectifying hole 312 is provided between every two adjacent flow-rectifying ribs 311, so that the water flow is more evenly distributed, and then flows into the flow-rectifying cavity 427 from the flow-rectifying hole 312. It should be noted that if there were no flow-rectifying ribs 311, the water would not be sufficiently dispersed or slowed down, and the enveloping water 720 would be difficult to form a ring, that is, the enveloping water 720 could not effectively envelop the impacting water 710, which would easily lead to splashing. The even arrangement of multiple flow-rectifying ribs 311 and multiple flow-rectifying holes 312 can further improve the uniformity of water intake.

[0081] Continue to refer to Figure 10As shown in the embodiment of the present invention, from the top view of the rectifier 300, the ratio of the flow cross-sectional area of ​​the rectifier hole 312, the area of ​​the upper end face of the rectifier rib 311, and the area between two adjacent rectifier ribs 311 is approximately 1:1:1. For example, the flow cross-sectional area of ​​the rectifier hole 312, the area of ​​the upper end face of the rectifier rib 311, and the area between adjacent rectifier ribs 311 are all equal. This allows the water vortex to change from disordered to a regular arrangement, reducing the vortex ring and flow loss, allowing water to smoothly enter the rectifier cavity 427. The spacing between two adjacent rectifier ribs 311 gradually increases along the water flow direction to guide the water flow towards the rectifier hole 312. Simultaneously, the cross-section of the rectifier hole 312, the upper end face of the rectifier rib 311, and the area between two adjacent rectifier ribs 311 are all trapezoidal. This conforms to the flow characteristics of water in the stabilizing cavity 310, which helps to reduce the vortex ring and facilitates the water's transformation from a chaotic state to an ordered state.

[0082] In an embodiment of the present invention, water enters from the first water passage 110, passes sequentially through the diversion cavity 210, the flow stabilizing cavity 310, the rectification cavity 427, and the guiding cavity 413, and finally exits to form encapsulated water 720. (Refer to...) Figure 11 As shown, the water flow direction in the diversion chamber 210 is relatively chaotic. After entering the stabilizing chamber 310, refer to... Figure 12 As shown, guided by the rectifying ribs 311 and the rectifying holes 312, the water vortex changes from a disordered state to a regular arrangement, and the vortex rings are significantly reduced. After the water enters the rectifying cavity 427, refer to... Figure 13 As shown, the first arc-shaped segment 422 can eliminate vortices, changing the water from a turbulent state to a laminar state. After the water enters the guide cavity 413, refer to... Figure 14 As shown, the water continues to maintain a laminar flow state in the flow guiding cavity 413, and after passing through the bending structure 411, the flow velocity of the water in the flow guiding cavity 413 is reduced, so that the encapsulating water 720 can better encapsulate the impact water 710.

[0083] Reference Figure 21 As shown in the embodiments of the present invention, Figure 21 The diagram shows the pressure and flow velocity at the outlet of each chamber in different embodiments, measured under conditions of 1.0 kg water pressure and 10 L flow rate. First embodiment: Circles indicate an embodiment where the nozzle 1000 has a flow-stabilizing chamber 310, a flow-rectifying chamber 427, and a flow-guiding chamber 413; Second embodiment: Triangles indicate an embodiment without a flow-rectifying chamber 427; Third embodiment: Squares indicate an embodiment without a flow-stabilizing chamber 310. It should be noted that... Figure 21 The dashed lines in the diagram are only for ease of understanding and do not represent the change in water flow velocity in each chamber with water pressure.

[0084] In the first embodiment, water sequentially passes through the flow stabilizing cavity 310, the rectifying cavity 427, and the guiding cavity 413, and finally exits from the guiding cavity 413 to form encapsulated water 720. Figure 21 As can be seen from the first embodiment, the water flow velocity within the guide cavity 413 remains essentially constant at 2.5 m / s, resulting in a good rinsing effect. The water 720 is transparent, has a long travel distance, provides good anti-splashing performance, and possesses a certain impact force. In the second embodiment, due to the absence of the rectifier cavity 427, the final water velocity is approximately 3.125 m / s. This excessively fast flow velocity causes the water 720 to be less rounded, and the high flow velocity easily leads to bubbles and whitening. In the third embodiment, the absence of the flow stabilizing cavity 310 necessitates a flow restriction method within the rectifier layer. However, this easily reduces the water flow velocity within the guide cavity 413 to approximately 1.25 m / s. This low velocity results in a shorter travel distance for the water 720, leading to poor anti-splashing and cleaning effects.

[0085] Reference Figure 7 As shown, in an embodiment of the present invention, the inner core 430 includes a sleeve 432 and a locking cap 433. One end of the sleeve 432 is fixedly connected to the rectifier 300, for example, integrally formed with the rectifier 300, or connected by a thread. The locking cap 433 is fixedly connected to the other end of the sleeve 432. (Refer to...) Figure 17 As shown, the locking cover 433 has a protrusion 438 at the end away from the sleeve 432, and the protrusion 438 surrounds the locking cover 433. The upper end surface of the protrusion 438 is a forming surface 434. After the water from the second water channel 410 flows through the forming surface 434, it forms an encapsulating water 720, so that the encapsulating water 720 is... Figure 5 The image shows a teardrop shape. It should be noted that the inner diameter of the water-enclosing 720 gradually increases and then decreases along the flow direction of the water-enclosing 720. This is due to the viscosity of the water and the pressure difference between the inside and outside of the water-enclosing 720.

[0086] Reference Figure 17 As shown in the embodiments of the present invention, the molding surface 434 is an outwardly convex arc surface or an outwardly inclined slope. If the molding surface 434 were concave, the water film enveloping the water 720 would easily break discontinuously, resulting in poor splash prevention. Therefore, the molding surface 434 is an outwardly convex arc surface or an outwardly inclined slope, forming a continuous water film enveloping the water 720, resulting in good splash prevention. During the production stage, by changing the arc surface size of the molding surface 434, the shape of the enveloping water 720 can be changed to meet the usage requirements under different conditions.

[0087] Reference Figure 15 and Figure 17As shown, in an embodiment of the present invention, the inner cavity of the sleeve 432 and the second water inlet 320 and the rectifier hole 312 are isolated from each other, and the locking cover 433 is provided with a second central hole 435 communicating with the inner cavity of the sleeve 432. The first water passage 110 is provided with a second water outlet 112, and the nozzle 1000 is provided with a third water passage 121 communicating with the second water outlet 112 and the inner cavity of the sleeve 432. Water in the third water passage 121 exits from the third water outlet 511 to form a third water flow. The third water flow can be aerated water 730, that is, the third water flow contains a large number of air bubbles, or the third water flow can be water that is directly discharged without any other treatment.

[0088] Reference Figure 3 and Figure 15 As shown, in the embodiments of the present invention, the locking cover 433 and the sleeve 432 can be connected by a threaded connection. For example, the inner side of the locking cover 433 is provided with an internal thread, and the outer side of the sleeve 432 is provided with an external thread, with the internal thread and the external thread connected. Furthermore, a sealing element 436 is provided at the connection between the sleeve 432 and the locking cover 433 to prevent water in the third water channel 121 from entering the second water channel 410. Therefore, the inner core 430 has a reasonable structural design, good sealing performance, and is not prone to crossflow.

[0089] Continue to refer to Figure 3 and Figure 15 As shown, in an embodiment of the present invention, the sealing element 436 includes a mounting portion 4361 and an abutment portion 4362 connected to each other. The mounting portion 4361 is disposed in a groove formed in the inner wall of the locking cover 433, while the abutment portion 4362 abuts against the inner wall of the sleeve 432, thereby effectively preventing water in the third water passage 121 from seeping into the second water passage 410. The sealing element 436 has a reasonable structural design, is easy to install, and has good sealing performance.

[0090] Reference Figure 6 and Figure 15 As shown in the embodiment of the present invention, the water distribution body 100 is provided with a first water passage pipe 120, the flow divider 200 is provided with a through hole 240, and the flow rectifier 300 is provided with a second water passage pipe 330 passing through the through hole 240. The second water passage pipe 330 and the first water passage pipe 120 are connected to form a third water passage 121. The second water passage hole 340 passing through the through hole 240 can quickly determine the relative position of the flow divider 200 and the flow rectifier 300, improving installation efficiency. At the same time, it makes the overall structure of the nozzle 1000 compact, reduces the size of the nozzle 1000, and facilitates user use.

[0091] Reference Figure 15As shown, in an embodiment of the present invention, the second water inlet 320 is connected to a connecting pipe 437, which is sealed to the rectifier plate 300 and passes through the second central hole 435. The inner cavity of the connecting pipe 437 is connected to the second water inlet 320, and the lower end of the connecting pipe 437 is provided with multiple fourth water outlets 439. Water in the second water inlet 320 passes through the inner cavity of the connecting pipe 437 and finally exits from the fourth water outlets 439 to form impact water 710.

[0092] To convert the third water flow into bubbly water 730, refer to... Figure 15 As shown in the embodiment of the present invention, the nozzle 1000 further includes an aerator 500, which is installed between the inner wall of the second central hole 435 and the connecting pipe 437. The aerator 500 includes a foaming shell 700 510 and a foaming core 520, which is connected to the connecting pipe 437, for example, integrally formed with the connecting pipe 437. The lower end of the foaming shell 700 510 is provided with a foaming water outlet. Therefore, water in the third water path 121 needs to pass through the aerator 500, and finally, when it exits from the third water outlet 511, it can form bubble water 730, meeting the user's daily usage needs and saving water resources.

[0093] Reference Figure 16 , Figure 18 and Figure 19 As shown in the embodiment of the present invention, the first water passage 110 is further provided with a third water outlet 113. The face cover 420 is provided with a water storage chamber 425, which is arranged around the first central hole 421. The face cover 420 is provided with a plurality of first water outlets 426 communicating with the water storage chamber 425, and the spray head 1000 is provided with a fourth water passage 130 communicating with the third water outlet 113 and the water storage chamber 425. The water in the fourth water passage 130 forms shower water 740 after passing through the first water outlets 426, which can spray the basin, rinse dishes, etc. over a large area.

[0094] Reference Figure 19 and Figure 20 As shown, in an embodiment of the present invention, the first water path 110 includes a water inlet 140, a water distribution section 150, a first water outlet 111, a second water outlet 112, and a third water outlet 113. Water enters from the water inlet 140 and flows through the water distribution section 150 to the first water outlet 111, the second water outlet 112, or the third water outlet 113, so that the nozzle 1000 is in different water outlet states. The water distribution section 150 is also provided with a first water passage chamber 180, a second water passage chamber 190, a first baffle 160, and a second baffle 170. The first water outlet 111 is disposed in the first water passage chamber 180, and the third water outlet 511 is disposed in the second water passage chamber 190. The first baffle 160 closes the first water passage chamber 180, and the second baffle 170 closes the second water passage chamber 190.

[0095] Reference Figure 3 As shown, in an embodiment of the present invention, the nozzle 1000 further includes a first water-dividing shaft 610, a second water-dividing shaft 620, a first spring 630, and a second spring 640. (Refer to...) Figure 19 As shown, the water distribution section 150 has a first water distribution cavity 151 and a second water distribution cavity 152 arranged vertically. A first water distribution shaft 610 is disposed in the first water distribution cavity 151. One end of a first spring 630 is sleeved on the first water distribution shaft 610, and the other end of the first spring 630 abuts against the inner wall of the first water distribution cavity 151. A second water distribution shaft 620 is disposed in the second water distribution cavity 152. One end of a second spring 640 is sleeved on the second water distribution shaft 620, and the other end of the second spring 640 abuts against the inner wall of the second water distribution cavity 152. The water distribution section 150 also has a rotating shaft 153. The button 600 is rotatably connected to the rotating shaft 153 to control the first water distribution shaft 610 and the second water distribution shaft 620 to be in different states.

[0096] For example, refer to Figure 15 As shown, when the user does not press button 600, the first water distribution shaft 610 and the second water distribution shaft 620 are located to the left of the first water distribution chamber 151 and the second water distribution chamber 152, respectively, under the elastic force of the first spring 630 and the second spring 640. At this time, water enters from the water inlet 140, passes through the first water distribution chamber 151, the second water distribution chamber 152, the second water outlet 112, the third water passage 121, and the third water outlet 511 in sequence, and finally forms bubble water 730.

[0097] When the user presses the lower end of button 600, refer to Figure 16 As shown, button 600 causes the second water-distributing shaft 620 to overcome the elastic force of the second spring 640 and move to the right side of the second water-distributing cavity 152, while the first water-distributing shaft 610 remains on the left side of the first water-distributing cavity 151. (Refer to...) Figure 19 As shown, water enters from the inlet 140 and passes through the first water distribution chamber 151, the second water distribution chamber 152, the second water passage chamber 190, the third water outlet 113, the fourth water passage 130 and the first water outlet 426 in sequence, finally forming the shower water 740.

[0098] When the user presses the upper part of button 600, button 600 causes the first water-distributing shaft 610 to overcome the elastic force of the first spring 630 and move to the right side of the first water-distributing cavity 151, while the second water-distributing shaft 620 remains on the left side of the second water-distributing cavity 152. (Refer to...) Figure 5 and Figure 20As shown, water enters from the inlet 140 and passes sequentially through the first water distribution chamber 151, the first water passage chamber 180, the first outlet 111, the diversion chamber 210, the flow stabilizing hole 230, the flow stabilizing chamber 310, the rectifying hole 312, the second water passage 410, and the second outlet 440, finally forming enveloping water 720. In the diversion chamber 210, a portion of the water passes sequentially through the first inlet hole 220, the second inlet hole 320, and the fourth outlet hole 439, finally forming impact water 710.

[0099] Reference Figure 4 As shown, there are multiple fourth water outlets 439, located at the center of the bottom of the cover 420; there are also multiple third water outlets 511, arranged around the fourth water outlet 439; the second water outlet 440 is annular, arranged around the multiple third water outlets 511; and there are multiple first water outlets 426, arranged around the third water outlets 511. This arrangement facilitates rinsing the sink and dishes, while also improving the overall aesthetics and appearance of the spray head 1000.

[0100] The water outlet device of one embodiment of the present invention can be a kitchen faucet, shower faucet, wall-mounted faucet, etc. The water outlet device uses the nozzle 1000 of the above embodiment, which is located at the water outlet end of the water outlet device to enable the water outlet device to have multiple different water outlet states. The water outlet device of this embodiment of the present invention uses the nozzle 1000 of the above embodiment. The nozzle 1000 is equipped with a water distribution body 100, a flow divider 200, a flow rectifier 300, and a cover 400. Water enters the flow divider chamber 210 through the first water outlet 111, and then flows into the first water inlet 220 and the flow stabilizing hole 230 respectively. Water passing through the first water inlet 220 enters the second water inlet 320 of the flow rectifier 300, thereby forming a powerful impact water flow 710. Water enters the flow stabilizing chamber 310 through the flow stabilizing hole 230. After passing through the flow straightening ribs 311, the water enters the second water passage 410 through the flow straightening hole 312. The water in the flow stabilizing chamber 310 is guided by multiple flow straightening ribs 311, reducing the water vortex and transforming the water from a disordered state to a more regular state. Simultaneously, the water flow rate is slowed, causing the water to form a ring after entering the second water passage 410 through the flow straightening hole 312, thus forming the enveloping water 720 that surrounds the impact water 710. When the user needs to rinse the sink and dishes, the impact water 710 mainly serves a rinsing function, while the enveloping water 720 can block the water splashes generated by the impact water 710, effectively reducing water splashing and improving the user experience.

[0101] Since the water outlet device adopts all the technical solutions of the nozzle 1000 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0102] 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 nozzle, characterized in that, include: The main water distribution body is provided with a first water channel, and the first water channel is provided with at least one water outlet; A flow divider is formed with a flow divider cavity communicating with one of the outlets. The flow divider is provided with a first inlet hole and a flow stabilizing hole communicating with the flow divider cavity. A rectifier plate is formed with a flow stabilizing cavity communicating with the flow stabilizing orifice. The sidewall of the flow stabilizing cavity is provided with a plurality of flow rectifier ribs and a plurality of flow stabilizing orifices. The plurality of flow rectifier ribs and the plurality of flow stabilizing orifices are arranged at intervals along the periphery of the flow stabilizing cavity. Along the radial direction of the flow stabilizing cavity, the flow rectifier ribs are closer to the center of the flow stabilizing cavity than the flow stabilizing orifices. The rectifier plate is provided with a second water inlet communicating with the first water inlet orifice. The cover body includes a faceplate and an inner core. The faceplate has a first central hole, and the inner core is installed in the first central hole. The inner wall of the first central hole and the outer wall of the inner core form a second water channel. The inlet end of the second water channel is arranged around and communicates with a plurality of rectifier holes. The outlet end of the second water channel is annular and configured to spray a second water flow that envelops the first water flow sprayed from the second inlet hole. The first central hole includes a first arc-shaped segment, a transition segment, a second arc-shaped segment, and an outlet segment connected to the second arc-shaped segment in sequence along the water flow direction. The area between the inner wall of the outlet segment and the outer wall of the inner core is a flow guiding cavity. The area ratio between the flow passage section S3 of the flow guiding cavity and the flow passage section S4 of the flow rectifying hole is 3 / 4.

2. The nozzle according to claim 1, characterized in that: The flow cross-sectional area of ​​the first water inlet is S1, and the flow stabilizing hole is S2, satisfying: 1 / 5≤S1 / S2≤1 / 2.

3. The nozzle according to claim 1, characterized in that: At least one rectification hole is provided between each pair of adjacent rectification ribs.

4. The nozzle according to claim 1, characterized in that: Both the rectifier rib and the rectifier hole are located on the bottom wall of the flow stabilizing cavity.

5. The nozzle according to claim 1, characterized in that: The water inlet end of the first central hole is constructed as an arc-shaped hole segment with a gradually decreasing inner diameter.

6. The nozzle according to claim 1, characterized in that: The inner diameter of the first arc segment gradually decreases, while the inner diameter of the second arc segment gradually increases.

7. The nozzle according to claim 1, characterized in that: The gap between the inner wall of the transition section and the outer wall of the inner core is f, and the gap between the inner wall of the water outlet section and the outer wall of the inner core is g, satisfying f≥g.

8. The nozzle according to claim 1, characterized in that: The inner core includes a sleeve and a locking cap. One end of the sleeve is fixedly connected to the rectifier plate, and the locking cap is fixedly connected to the other end of the sleeve. The locking cap has a molding surface at the end away from the sleeve, and the water flow of the second water channel forms the second water flow through the molding surface.

9. The nozzle according to claim 8, characterized in that: The forming surface is an outwardly convex arc surface or an outwardly inclined slope.

10. The nozzle according to claim 9, characterized in that: The inner cavity of the sleeve is isolated from the second water inlet and the rectifier hole. The locking cover has a second central hole that connects to the inner cavity of the sleeve. The first water passage has a first water outlet and a second water outlet. The first water outlet is connected to the diversion cavity. The nozzle has a third water passage that connects the second water outlet and the inner cavity of the sleeve.

11. A water outlet device, characterized in that: Includes the nozzle as described in any one of claims 1 to 10.

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