Water outlet device

Abstract

The utility model discloses a water outlet device which comprises a body, a water outlet nozzle and a switching piece. The body is provided with a water passing cavity, the water passing cavity is provided with a first water inlet end and a second water inlet end, and the water inlet area of the second water inlet end is larger than that of the first water inlet end, so that when water enters the second water inlet end, the flow is larger than that of the first water inlet end, and the flow speed in the water passing cavity is larger. The water outlet nozzle is provided with a rotational flow structure and a water outlet hole, the water outlet hole is communicated with the water passing cavity, the hole wall of the water outlet hole is suitable for deformation, and when water enters the second water inlet end, the rotational flow structure is suitable for forming rotational flow or increasing rotational flow at the water outlet hole so as to impact the hole wall of the water outlet hole, so that the water outlet hole vibrates, and scale on the hole wall of the water outlet hole is vibrated off; when the water outlet device is used for removing scale, water exerts pressure on the hole wall of the water outlet hole, so that the hole wall of the water outlet hole deforms, the water outlet is enlarged, the scale is conveniently discharged, and when the scale is removed through the structure, the size of the water outlet device can be smaller.

Description

TECHNICAL FIELD

[0001] The utility model relates to water outlet product field, concretely relates to a water outlet device. BACKGROUND

[0002] In prior art, in order to make the scale of water outlet hole easy to clean when using the shower, the water outlet hole is usually arranged on the flexible water outlet nozzle, so as to move the hole wall of water outlet hole, and the scale is made to fall off and flow out from the water outlet hole, but the mode is more complex.Therefore, on the market, there are more designs of scale removing needle, the scale of water outlet hole is discharged by the sliding of scale removing needle arranged in the water channel, but because scale removing needle needs to occupy certain waterway space, the size of the whole water outlet device becomes larger. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned defects or problems in the background art, and provides a water outlet device.

[0004] To achieve the above-mentioned purpose, the utility model and its preferred embodiments adopt the following technical scheme, but the embodiments are not limited to the following scheme:

[0005] Scheme one, a water outlet device, comprising

[0006] The body is provided with a water passing cavity, the water passing cavity is provided with a first water inlet end and a second water inlet end, and the water inlet area of the second water inlet end is greater than that of the first water inlet end;

[0007] The water outlet nozzle is partially arranged in the water passing cavity, and is provided with a rotational flow structure and a water outlet hole, the water outlet hole is communicated with the water passing cavity, and the hole wall of the water outlet hole is adapted to deform, the water outlet hole is provided with a water outlet opening, when water flows into the second water inlet end, the rotational flow structure is adapted to form a rotational flow or increase the rotational flow at the water outlet hole, so as to impact the hole wall of the water outlet hole, and the hole wall of the water outlet hole and the water outlet opening are deformed to discharge the scale; when water flows into the first water inlet end, the hole wall of the water outlet hole and the water outlet opening are restored;

[0008] The switching part is adapted to move relative to the body, so that the first water inlet end and / or the second water inlet end is water inlet.

[0009] Scheme two, based on scheme one, the rotational flow structure is a convex part, at least one end of the convex part is connected with the hole wall of the water outlet hole, so as to form a rotational flow below the convex part.

[0010] Scheme three, based on scheme one, the rotational flow structure comprises two water passing channels, the two water passing channels penetrate the hole wall of the water outlet hole to communicate with the water outlet hole, and the water passing directions of the two water passing channels intersect, so as to make water flow collide to form a rotational flow when water passing.

[0011] In the fourth aspect based on the first aspect, the vortex structure includes a water passage which penetrates a hole wall of the water outlet hole to communicate with the water outlet hole, a water passing direction of the water passage does not point to a central axis of the water outlet hole, and the water passage is adapted to form a vortex in the water outlet hole when water passes through the water passage.

[0012] In the fifth aspect based on the first aspect, the water inlet area of the second water inlet end is more than 1.5 times of the water inlet area of the first water inlet end.

[0013] In the sixth aspect based on the first aspect, the water outlet is a micro-hole.

[0014] In the seventh aspect based on the sixth aspect, the water outlet has a size of 0.2-0.5 mm.

[0015] In the eighth aspect based on the first aspect, the first water inlet end includes a plurality of first holes, the second water inlet end includes a plurality of second holes, the number of the second holes is greater than the number of the first holes, and a water passing section of the second hole is smaller than a water passing section of the first hole.

[0016] In the ninth aspect based on the first aspect, the body is provided with a mounting hole, the water outlet nozzle is provided with a water outlet part, the water outlet hole penetrates the water outlet part, the water outlet part extends out of the mounting hole, and a size of the mounting hole is greater than a size of the water outlet part.

[0017] In the tenth aspect based on the first aspect, the body is provided with a switching hole which has two water outlet ends respectively communicating with the first water inlet end and the second water inlet end, and the switching member includes a rotating disc which is provided with a water sealing column, the rotating disc is adapted to rotate relative to the body to make the water sealing column change a communicating area of the two water outlet ends of the switching hole with the first water inlet end and the second water inlet end.

[0018] From the above description of the utility model and its preferred embodiments, relative to the prior art, the technical scheme of the utility model and its preferred embodiments have the following beneficial effects due to the following technical means:

[0019] 1. In the first aspect and its preferred embodiments, a water outlet device includes a body, a water outlet nozzle and a switching member.

[0020] The body is provided with a water passing cavity which is provided with a first water inlet end and a second water inlet end, the water inlet area of the second water inlet end is greater than the water inlet area of the first water inlet end, so that the second water inlet end has a greater flow when water enters, thereby causing a greater flow rate in the water passing cavity.

[0021] The water outlet is located within the water passage chamber. The outlet features a swirling structure and a water outlet hole. The water outlet hole is connected to the water passage chamber, and its wall is deformable. When water enters through the second inlet, the swirling structure creates or amplifies the swirling flow at the water outlet hole (the higher the flow velocity, the easier it is to create), impacting the hole wall and causing vibration. This vibrates the water outlet hole, dislodging scale from its wall. Simultaneously, the swirling flow creates pressure on the hole wall (the higher the flow velocity, the greater the pressure), causing deformation of the hole wall and the outlet itself, facilitating scale removal. When water enters through the first inlet, the flow velocity is lower, making it less likely for a swirling flow to form. The pressure on the hole wall is also lower, reducing deformation and allowing the hole wall and outlet to return to their normal operating state. This structure eliminates the need for descaling needles, allowing for a smaller water outlet device.

[0022] The switching element is adapted to move relative to the main body to allow water to enter the first water inlet and / or the second water inlet, thereby ensuring normal water output or removing scale. When the switching element can also allow water to exit from the first water inlet and the second water inlet simultaneously, the water outlet also has a water output state between the two states mentioned above, increasing the diversity of water output.

[0023] 2. In Scheme 2 and its preferred embodiments, the vortex structure is a protrusion, at least one end of which is connected to the wall of the water outlet to form a vortex below the protrusion. This method uses the Karman vortex street principle. When the water flows through the protrusion at a certain speed, it will form an alternating double row of vortices below the protrusion. The scale will be shaken off by the double row of vortices. At the same time, since it is an alternating vortex, the water flow speed on both sides of the water outlet is different, resulting in different pressures on both sides of the water outlet. When the walls of the two sides of the water outlet are subjected to different pressures, the water outlet deforms to one side, causing the outlet to deform so as to facilitate the discharge of scale.

[0024] 3. In Scheme 3 and its preferred embodiments, the vortex structure includes two water channels that penetrate the wall of the outlet hole to communicate with it. The water flow directions of the two water channels intersect. Since the two fluids have different directions, they will collide at the contact surface to form two vortices when the water flows through. The two vortices move in different directions, resulting in different water flow velocities at various points. This causes different pressures on the wall of the outlet hole at various points, which shakes off the scale on the wall of the outlet hole and deforms the outlet hole at the same time.

[0025] 4. In Scheme 4 and its preferred embodiments, the vortex structure includes a water passage that penetrates the wall of the water outlet to communicate with it. The water passage is adapted to form a vortex in the water outlet when water flows through it. A vortex can also be formed by setting a water passage to achieve the above-mentioned corresponding effects.

[0026] 5、Scheme five and its preferred embodiments, the second water inlet end of the water inlet area is 1.5 times more than the water inlet area of the first water inlet end, to ensure the second water inlet end of the water flow, so that the second water inlet end, the water cavity flow rate increases more obvious.

[0027] 6、Scheme six and its preferred embodiments, the water outlet is microporous, to ensure that the first water inlet end of the water, the water outlet smaller water quantity, enhance the user experience, and because of the smaller water outlet, scale is difficult to discharge, by the above scheme, so that the second water inlet end of the water, the water outlet deformation, thereby facilitating the discharge of scale.

[0028] 7、Scheme seven and its preferred embodiments, the water outlet size is 0.2-0.5mm, so that the first water inlet end of the water, the water outlet hole flow out of the rain silk water, convenient experience.

[0029] 8、Scheme eight and its preferred embodiments, the first water inlet end includes a plurality of first holes, the second water inlet end includes a plurality of second holes, the number of second holes is greater than the number of first holes, the second hole of the water cross section is smaller than the first hole of the water cross section, to further increase the flow rate of the second water inlet end into the water cavity.

[0030] 9、Scheme nine and its preferred embodiments, the body is provided with a mounting hole, the water outlet nozzle is provided with a water outlet, the water outlet hole penetrates the water outlet, the water outlet is stretched out of the mounting hole, the size of the mounting hole is greater than the size of the water outlet, so as to facilitate the deformation of the hole wall of the water outlet hole.

[0031] 10、Scheme ten and its preferred embodiments, the body is provided with a switching hole, the switching hole has two water outlets respectively communicating with the first water inlet end and the second water inlet end, the switching member includes a rotating disc, the rotating disc is provided with a water sealing column, the rotating disc is adapted to rotate relative to the body to change the communication area of the two water outlets of the switching hole with the first water inlet end and the second water inlet end, so as to realize the switching of the first water inlet end and the second water inlet end. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0033] Figure 1 It is a perspective view of the water outlet device in embodiment one;

[0034] Figure 2 It is an explosion view of the water outlet device in embodiment one;

[0035] Figure 3Front view of the water outlet device in Example 1;

[0036] Figure 4 Sectional view of the switching hole in Example 1;

[0037] Figure 5 Structural schematic diagram of the first water inlet end when water is flowing in Example 1;

[0038] Figure 6 Structural schematic diagram of the first water inlet end when water is flowing in Example 1 from another perspective;

[0039] Figure 7 Structural schematic diagram of the second water inlet end in Example 1;

[0040] Figure 8 Schematic diagram of the first water inlet end and the second water inlet end in Example 1;

[0041] Figure 9 Structural schematic diagram of the water outlet device in Example 1;

[0042] Figure 10 Schematic diagram of the water outlet device without water scale in Example 1;

[0043] Figure 11 Structural schematic diagram of the water outlet nozzle;

[0044] Figure 12 Schematic diagram of the water outlet device in use state one, in which the hole wall of the water outlet hole has water scale;

[0045] Figure 13 Schematic diagram of the water outlet device in use state two, in which the second water inlet end is flowing water, and a rotational flow is formed in the water outlet hole;

[0046] Figure 14 Schematic diagram of the water outlet device in use state three, in which the water scale on the hole wall of the water outlet hole is shaken off under the action of the rotational flow;

[0047] Figure 15 Schematic diagram of the water outlet device in use state four, in which the water outlet hole is deformed under the action of the rotational flow, the water outlet is deformed, and the water scale is discharged;

[0048] Figure 16 Structural schematic diagram of the water outlet device in Example 2;

[0049] Figure 17 Perspective view of the water outlet nozzle in Example 2;

[0050] Figure 18 Top view of the water outlet nozzle in Example 2;

[0051] Figure 19 Rotational flow schematic diagram of the water outlet hole in Example 2;

[0052] Figure 20 A schematic view of the rotational flow at the water outlet hole in Example 3;

[0053] Explanation of main reference signs:

[0054] Body 1; water inlet hole 11; water passing cavity 12; first water inlet end 121; first hole 1211; second water inlet end 122; second hole 1221; switching hole 13; mounting hole 14; shower body 151; mandrel 152; water passing assembly 153; water channel plate 154; inner cover 155; outer cover 156; decorative cover 157; water outlet nozzle 2; plate body 21; water outlet part 22; water outlet hole 23; water outlet opening 231; protruding part 24; water passing channel 25; switching piece 3; push button 31; rotating disc 32; water sealing column 321; DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are preferred embodiments of the present application, and should not be regarded as excluding other embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0056] In the claims, description and above drawings of the present application, unless otherwise explicitly limited, the terms such as "first", "second" or "third" are used only to distinguish different objects, and are not used to describe a specific order.

[0057] In the claims, description and above drawings of the present application, unless otherwise explicitly limited, for the terms of orientation, such as "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation and position relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present application.

[0058] In the claims, description and above drawings of the present application, unless otherwise explicitly limited, such as the terms "fixedly connected" or "fixedly connected", should be understood broadly, that is, any connection mode without displacement relationship and relative rotation relationship between the two, that is, it includes non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements.

[0059] The terms "comprise", "have" and their conjugates, as used in the claims, the specification and the above drawings, are intended to mean "including but not limited to".

[0060] Embodiment one

[0061] Reference Figures 1-15 A water outlet device, comprising a body 1, a water outlet nozzle 2 and a switching piece 3. The water outlet device can be a shower, a top spray, a faucet, etc. In this embodiment, the water outlet device is in the shape of a shower.

[0062] The body 1 is provided with a water inlet hole 11, a water passing cavity 12, a switching hole 13 and a plurality of mounting holes 14, as shown in the reference Figure 4 The water inlet hole 11 is adapted to communicate with an external waterway to realize water inlet. As shown in the reference Figure 6 、 Figure 7 The water passing cavity 12 is provided with a first water inlet end 121 and a second water inlet end 122 which communicate with the water inlet hole 11, and the water inlet area of the second water inlet end 122 is greater than that of the first water inlet end 121. In this embodiment, the water inlet area of the second water inlet end 122 is 1.5 times or more than that of the first water inlet end 121. As shown in the reference Figure 8 The first water inlet end 121 comprises a plurality of first holes 1211, three in this embodiment, and the second water inlet end 122 comprises a plurality of second holes 1221, six in this embodiment, the number of the second holes 1221 is greater than that of the first holes 1211, and the water passing cross section of the second holes 1221 is smaller than that of the first holes 1211. As shown in the reference Figure 4 The switching hole 13 is located between the water inlet hole 11 and the water passing cavity 12, and communicates the water inlet hole 11 and the water passing cavity 12. As shown in the reference Figure 14 The mounting hole 14 communicates the water passing cavity 12.

[0063] Specifically, as shown in the reference Figure 2 The body 1 comprises a shower body 151, a mandrel 152, a water passing assembly 153, a waterway plate 154, an inner cover 155, an outer cover 156 and a decorative cover 157. The mandrel 152 is provided with the water inlet hole 11, the water passing assembly 153 is provided with the switching hole 13, the shower body 151 is provided with the mounting hole 14, and the mounting hole 14 can also be provided on the outer cover 156 and the decorative cover 157. First, the water passing assembly 153, the waterway plate 154, the water outlet nozzle 2 and the inner cover 155 need to be locked by screws in sequence, then the decorative cover 157 and the outer cover 156 are sleeved together, and then the decorative cover 157 assembly is buckled to the already assembled water passing assembly 153; finally, the entire assembly is buckled into the shower body 151, then the mandrel 152 is inserted into the shower body 151, the switching piece 3 is installed, and the assembly is completed. Among them, the water passing assembly 153, the waterway plate 154 and the inner cover 155 enclose the water passing cavity 12, and the first water inlet end 121 and the second water inlet end 122 are arranged on the water passing assembly 153.

[0064] Reference Figure 10 、 Figure 11 The water outlet nozzle 2 is flexible, and comprises a plate body 21 and a plurality of water outlet portions 22 protruding from the plate body 21. The plate body 21 is arranged in the water passing cavity 12 and is seated on the cavity wall of the water passing cavity 12. In the embodiment, the number of the water outlet portions 22 is the same as that of the mounting holes 14. The water outlet portions 22 protrude from the mounting holes 14. The size of the mounting holes 14 is larger than that of the water outlet portions 22, so that the water outlet portions 22 can be deformed and the installation is facilitated. In the embodiment, the water outlet portions 22 protrude from only one side of the plate body 21 (specifically, the lower side of the plate body 21), and are cuboids. In other embodiments, the water outlet portions 22 can protrude from both upper and lower sides of the plate body 21, or only the upper side, and can have other shapes.

[0065] The water outlet nozzle 2 is provided with a rotational flow structure and a water outlet hole 23. The number of the rotational flow structure and the water outlet hole 23 is the same as that of the water outlet portions 22 and corresponds to the water outlet portions 22 one by one. The inner wall of the water outlet portion 22 is hollow to form the water outlet hole 23. In the embodiment, the cross section of the water outlet hole 23 is square. The water outlet hole 23 is provided with a water outlet port 231. The water outlet port 231 is located at the bottom of the water outlet portion 22 and can be provided with a plurality of water outlet ports 231. The water outlet port 231 is a micropore. The size of the water outlet port 231 is 0.2-0.5 mm (the size when the first water inlet end 121 is supplied with water or when the water outlet device is not supplied with water), so that rain-like water flow is formed. In the embodiment, the size of the water outlet port 231 is 0.3-0.4 mm, and the water outlet port 231 is circular. The water outlet hole 23 is in communication with the water passing cavity 12, and the hole wall thereof is adapted to be deformed, so that the water outlet port 231 is deformed and the size thereof is increased or decreased.

[0066] The rotational flow structure is adapted to form rotational flow or increase rotational flow at the water outlet hole 23. In the embodiment, the Kármán vortex street principle is adopted (when water flows through the protruding portion 24 at a certain speed, alternating double-row vortexes are formed below the protruding portion 24). Specifically, the rotational flow structure is a protruding portion 24. The extension direction of the protruding portion 24 is perpendicular to the water outlet direction of the water outlet hole 23. The two ends of the protruding portion 24 are connected to the hole wall of the water outlet hole 23, so that rotational flow is formed below the protruding portion 24. In the embodiment, the protruding portion 24 is a circular protruding portion 24, or a protruding portion 24 of other shapes, such as a prism. In other embodiments, one end of the protruding portion 24 protrudes from the hole wall of the water outlet hole 23, and the other end is not connected to the hole wall of the water outlet hole 23.

[0067] The switching piece 3 is adapted to move relative to the body 1 to make the first water inlet end 121 and / or the second water inlet end 122 to take in water. That is, the first water inlet end 121 can take in water, the second water inlet end 122 can take in water, and the first water inlet end 121 and the second water inlet end 122 can both take in water. The first two are the states that the water outlet device must have in the embodiment, and the third is not necessarily provided. The specific manner of the switching piece 3 is not described in detail in the embodiment. It can be a mechanical switching structure such as a rotary knob switching structure, a push button switching structure, and a button switching structure in the prior art. It can also be an electronic switching structure such as an electromagnetic valve switching, a voice switching, and the like. Any element that can achieve the function of switching the waterway can be used. The switching piece 3 changes the communication area of the first water inlet end 121 and the second water inlet end 122 with the water inlet hole 11, so as to make the first water inlet end 121 or the second water inlet end 122 to take in water or stop water, or adjust the flow rate, and the like. In the embodiment, referring to Figure 3 、 Figure 4 , the switching piece 3 includes a push button 31 and a rotating disc 32. The push button 31 drives the rotating disc 32 to rotate. The rotating disc 32 is provided with a water sealing column 321. The water sealing column 321 is located at the switching hole 13 and is used to change the water inlet area of the first water inlet end 121 and the second water inlet end 122. The switching hole 13 has two water outlet ends that are respectively communicated with the first water inlet end 121 and the second water inlet end 122. The water sealing column 321 can change the communication area of the two water outlet ends of the switching hole 13 with the first water inlet end 121 and the second water inlet end 122. In other embodiments, the switching effect can also be achieved by directly driving the rotating disc 32 to rotate. Principle: referring to Figures 12-15 , when the user needs to normally use the rain silk water flower, the switching piece 3 is operated to make the waterway of the water outlet device to take in water through the first water inlet end 121. In the process of use, referring to Figure 12 , it is found that the water flow rate is reduced, which indicates that the dirt on the hole wall of the water outlet hole 23 affects the water outlet. At this time, the switching piece 3 can be operated to make the waterway of the water outlet device to take in water through the second water inlet end 122, as shown in Figure 13 、 Figure 14 , when the second water inlet end 122 takes in water, the water inlet area of the second water inlet end 122 is greater than that of the first water inlet end 121, which ensures a greater water inlet amount, thereby causing a greater flow rate and water pressure, so that the Karman vortex street phenomenon is more likely to occur (the greater the flow rate, the more likely to occur). Alternating double-row vortices are formed below the convex portion 24, impact the hole wall of the water outlet hole 23, cause the water outlet hole 23 to vibrate, and make the dirt on the hole wall of the water outlet hole 23 to fall off. Referring to Figure 15At the same time, due to the alternating double-row vortex, the water flow speed on both sides of the water outlet hole 23 is different, resulting in different water pressure (the greater the speed, the greater the pressure) on both sides of the water outlet hole 23. When the hole walls on both sides of the water outlet hole 23 are subjected to different pressures, the water outlet hole 23 deforms to one side, and the water outlet 231 is deformed, so as to facilitate the removal of scale. After the scale removal is completed, the first water inlet end 121 can be switched again. When water enters the first water inlet end 121, due to the small speed, the Karman vortex street cannot be generated, and the pressure of the water on the hole wall of the water outlet hole 23 is also reduced accordingly. The hole wall of the water outlet hole 23 and the water outlet restore, and the size of the water outlet 231 is reduced, so that normal raindrop water splashes can flow out, and normal use is restored. Of course, through reasonable structural design, the first water inlet end 121 and the second water inlet end 122 can be switched to enter water at the same time, which is between the above two states.

[0068] Compared with the prior art, the embodiment has the following beneficial effects:

[0069] In an exemplary embodiment, a water outlet device includes a body 1, a water outlet nozzle 2, and a switching piece 3.

[0070] The body 1 is provided with a water passing cavity 12, and the water passing cavity 12 is provided with a first water inlet end 121 and a second water inlet end 122. The water inlet area of the second water inlet end 122 is greater than that of the first water inlet end 121, so that the second water inlet end 122 has a greater flow rate when water enters, thereby causing a greater flow rate in the water passing cavity 12.

[0071] The water outlet nozzle 2 is partially disposed in the water passing cavity 12, and the water outlet nozzle 2 is provided with a rotational flow structure and a water outlet hole 23. The water outlet hole 23 is in communication with the water passing cavity 12 and its hole wall is adapted to deform. When water enters the second water inlet end 122, the rotational flow structure is adapted to form a rotational flow or increase the rotational flow (the greater the flow rate, the easier to form) at the water outlet hole 23, so as to impact the hole wall of the water outlet hole 23, causing the water outlet hole 23 to vibrate and shake off the scale on the hole wall of the water outlet hole 23. At the same time, due to the formation of the rotational flow, the water causes pressure (the greater the flow rate, the greater the pressure) on the hole wall of the water outlet hole 23, thereby causing the hole wall of the water outlet hole 23 to deform, and the water outlet 231 to increase in size, so as to facilitate the removal of scale. When water enters the first water inlet end 121, due to the reduced flow rate, it is not easy to form a rotational flow, and the water causes reduced pressure on the hole wall of the water outlet hole 23, so as to not easily deform the hole wall of the water outlet hole 23, thereby restoring the hole wall of the water outlet hole 23 and ensuring normal use. When the scale is removed through the structure, a scale removal needle is not required, and the size of the water outlet device can be smaller.

[0072] The switching piece 3 is adapted to move relative to the body 1 to make the first water inlet end 121 and / or the second water inlet end 122 to take in water, thereby ensuring normal water outlet or excluding the effect of water scale. When the switching piece 3 can also make the first water inlet end 121 and the second water inlet end 122 to take in water at the same time, the water outlet hole 23 also has a water outlet state between the above two states, thereby increasing the diversity of water outlet.

[0073] In an exemplary embodiment, the rotational flow structure is a protrusion 24, at least one end of the protrusion 24 is connected to the hole wall of the water outlet hole 23 to form a rotational flow under the protrusion 24. This mode adopts the principle of Karman vortex street. When the water flow passes through the protrusion 24 at a certain speed, it will form an alternating double-row vortex under the protrusion 24. Through the double-row vortex, the water scale is shaken off. At the same time, since it is an alternating rotational flow, the water flow speed on both sides of the water outlet hole 23 is different, which causes the pressure received by both sides of the water outlet hole 23 to be different. When the two sides of the water outlet hole 23 receive different pressures, the water outlet hole 23 deforms to one side, making the water outlet 231 larger, so as to facilitate the discharge of water scale.

[0074] In an exemplary embodiment, the water inlet area of the second water inlet end 122 is 1.5 times or more of the water inlet area of the first water inlet end 121, thereby ensuring the water inlet flow of the second water inlet end 122, so that when the second water inlet end 122 takes in water, the flow rate in the water passing cavity 12 increases more obviously.

[0075] In an exemplary embodiment, the water outlet 231 is a micropore, so as to ensure that when the first water inlet end 121 takes in water, the water outlet 231 has a smaller water outlet amount, thereby improving the user experience. Since the water outlet 231 is small, it is difficult to discharge the water scale. Through the above scheme, when the second water inlet end 122 takes in water, the water outlet 231 becomes larger, thereby facilitating the discharge of water scale.

[0076] In an exemplary embodiment, the size of the water outlet 231 is 0.2-0.5 mm, so that when the first water inlet end 121 takes in water, the water outlet hole 23 flows out of the rain silk water splash, thereby facilitating the experience.

[0077] In an exemplary embodiment, the first water inlet end 121 includes a plurality of first holes 1211, and the second water inlet end 122 includes a plurality of second holes 1221. The number of the second holes 1221 is greater than the number of the first holes 1211, and the water passing section of the second holes 1221 is smaller than the water passing section of the first holes 1211, thereby further increasing the flow rate of the second water inlet end 122 when entering the water passing cavity 12.

[0078] In an exemplary embodiment, the body 1 is provided with a mounting hole 14, the water outlet nozzle 2 is provided with a water outlet portion 22, the water outlet hole 23 penetrates the water outlet portion 22, the water outlet portion 22 extends out of the mounting hole 14, and the size of the mounting hole 14 is greater than the size of the water outlet portion 22, so as to facilitate the deformation of the hole wall of the water outlet hole 23 without interference.

[0079] Embodiment Two

[0080] The embodiment forms the rotational flow in a different way from the first embodiment. In the embodiment, the rotational flow structure includes two water passing channels 25. The water outlet hole 23 protrudes from the plate body 21 at the end away from the water outlet 231. The two water passing channels 25 pass through the hole wall of the water outlet hole 23 at the end away from the water outlet 231 to communicate with the water outlet hole 23. The water passing directions of the two water passing channels 25 intersect. Due to the different fluid directions, the water passing will collide at the contact surface to form two rotational flows. The two rotational flows move in different directions, so that the water flow speeds at different positions are different, which causes the water flow to exert different pressures on the hole walls of the water outlet hole 23 at different positions. The water scale on the hole walls of the water outlet hole 23 is shaken off, and the water outlet hole 23 is deformed at the same time, so that the water scale flows out of the water outlet 231. In the embodiment, the two water passing channels 25 pass through the two oppositely arranged hole walls of the water outlet hole 23, respectively.

[0081] Embodiment Three

[0082] The difference between the embodiment and the second embodiment is that the embodiment only provides one water passing channel 25. The water passing channel 25 passes through the hole wall of the water outlet hole 23 to communicate with the water outlet hole 23. The water passing channel 25 is suitable for forming a rotational flow in the water outlet hole 23 when water passes. By providing one water passing channel 25, a rotational flow can also be formed, and the corresponding effects described above can be achieved. When provided, the water passing direction of the water passing channel 25 does not point to the central axis of the water outlet hole 23, so as to facilitate the formation of the rotational flow.

[0083] The above description and embodiment are used to explain the protection scope of the utility model, but do not constitute the limitation on the protection scope of the utility model. Through the inspiration of the utility model or the above embodiment, the ordinary skilled in the art combines the common knowledge, the ordinary technical knowledge in the art and / or the prior art, and obtains the modification, equivalent replacement or other improvement of the utility model embodiment or one part of the technical features through the logical analysis, reasoning or limited test, which should be included in the protection scope of the utility model.

Claims

1. A water outlet device, characterized in that: include The main body (1) is provided with a water passage cavity (12), the water passage cavity (12) is provided with a first water inlet end (121) and a second water inlet end (122), the water inlet area of ​​the second water inlet end (122) is larger than the water inlet area of ​​the first water inlet end (121); The water outlet (2) is partially placed inside the water passage cavity (12). It is provided with a swirling structure and a water outlet (23). The water outlet (23) is connected to the water passage cavity (12) and its hole wall is adapted to deform. The water outlet (23) is provided with a water outlet (231). When water enters at the second water inlet (122), the swirling structure is adapted to form a swirling flow or increase the swirling flow at the water outlet (23) to impact the hole wall of the water outlet (23) and cause the hole wall of the water outlet (23) to deform and the water outlet (231) to remove scale. When water enters at the first water inlet (121), the hole wall of the water outlet (23) and the water outlet (231) are restored. A switching element (3) is adapted to move relative to the body (1) to allow water to enter the first water inlet (121) and / or the second water inlet (122).

2. The water outlet device as described in claim 1, characterized in that: The swirling structure is a protrusion (24), at least one end of which is connected to the wall of the outlet hole (23) to form a swirling flow below the protrusion (24).

3. The water outlet device as described in claim 1, characterized in that: The swirling structure includes two water passages (25), which penetrate the wall of the outlet hole (23) to communicate with it. The water passage directions of the two water passages (25) intersect to cause the water flow to collide and form a swirling flow when passing through the water.

4. The water outlet device as described in claim 1, characterized in that: The swirling structure includes a water passage (25) that penetrates the wall of the outlet hole (23) to communicate with it. The water passage (25) does not point to the central axis of the outlet hole (23). The water passage (25) is adapted to form a swirling flow in the outlet hole (23) when water flows through it.

5. A water outlet device as described in claim 1, characterized in that: The water inlet area of ​​the second water inlet (122) is more than 1.5 times that of the water inlet area of ​​the first water inlet (121).

6. A water outlet device as described in claim 1, characterized in that: The outlet (231) is a micropore.

7. A water outlet device as described in claim 6, characterized in that: The outlet (231) has a size of 0.2-0.5mm.

8. A water outlet device as described in claim 1, characterized in that: The first water inlet end (121) includes a plurality of first holes (1211), and the second water inlet end (122) includes a plurality of second holes (1221). The number of second holes (1221) is greater than the number of first holes (1211), and the water passage cross section of the second holes (1221) is smaller than the water passage cross section of the first holes (1211).

9. A water outlet device as described in claim 1, characterized in that: The main body (1) is provided with a mounting hole (14), the water outlet (2) is provided with a water outlet (22), the water outlet hole (23) passes through the water outlet (22), the water outlet (22) extends out from the mounting hole (14), and the size of the mounting hole (14) is larger than the size of the water outlet (22).

10. A water outlet device as described in claim 1, characterized in that: The main body (1) is provided with a switching hole (13), the switching hole (13) has two outlets that are respectively connected to the first water inlet (121) and the second water inlet (122). The switching component (3) includes a turntable (32), the turntable (32) is provided with a sealing column (321), the turntable (32) is adapted to rotate relative to the main body (1) so that the sealing column (321) changes the communication area between the two outlets of the switching hole (13) and the first water inlet (121) and the second water inlet (122).

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