Water outlet device and faucet applying same

Abstract

The invention discloses a water outlet device and discloses a faucet with the water outlet device, the water outlet device comprises a water inlet part, a first part, a second part and a third part, the second part is arranged in the first part, a first cavity is defined between the first part and the second part, the third part is arranged in the second part, and a second cavity is defined between the second part and the third part. A third cavity is defined in the third part, and the water inlet part, the first cavity, the second cavity and the third cavity are sequentially communicated; wherein the water outlet end of the water inlet part faces the outer wall of the second part, a corner is formed at the communication position of the first cavity and the second cavity, a corner is formed at the communication position of the second cavity and the third cavity, the third cavity is provided with a water outlet, water flow is sprayed out of the main body after being buffered and decelerated for multiple times, the impact force of the sprayed water flow is effectively reduced, and the service life of the main body is prolonged. And the water flow sprayed onto the object achieves a splash-proof effect.

Description

Technical Field

[0001] The invention relates to a water outlet device, in particular to a water outlet device and a faucet using the water outlet device. Background Art

[0002] Traditional faucets are prone to splashing during use, especially in scenarios where a lot of water is needed, such as washing dishes and vegetables. This will not only wet the kitchen countertops, floors and other areas, but may also affect the cleanliness of the kitchen. In order to prevent splashing, some faucets usually use components such as aerators. The aerator is usually installed at the water outlet of the faucet, and the internal mesh structure reduces water consumption to achieve the effect of water saving and splash prevention. However, after long-term use of the faucet, impurities and material accumulation in the water will adhere to the aerator, and continuous accumulation will cause blockage. Summary of the invention

[0003] The present invention aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. To this end, the present invention provides a water outlet device.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] The present invention also provides a faucet having the water outlet device.

[0006] According to a first aspect of the present invention, a water outlet device includes a main body, the main body includes a water inlet, a first part, a second part and a third part, the second part is arranged in the first part, a first cavity is defined between the first part and the second part, the third part is arranged in the second part, a second cavity is defined between the second part and the third part, a third cavity is defined inside the third part, the water inlet, the first cavity, the second cavity and the third cavity are connected in sequence; wherein,

[0007] The water outlet end of the water inlet portion faces the outer wall of the second portion, the connection between the first cavity and the second cavity forms a corner, the connection between the second cavity and the third cavity forms a corner, and the third cavity is provided with a water outlet.

[0008] The water outlet device according to the embodiment of the present invention has at least the following beneficial effects: the water flow is sprayed out of the main body after being buffered and decelerated multiple times, the impact force of the sprayed water flow is effectively reduced, and the water flow sprayed onto the object achieves a splash-proof effect without the need to use a traditional bubbler.

[0009] According to some embodiments of the present invention, the direction in which the water outlet sprays water toward the first cavity is defined as a first direction, the first part has a first side and a second side relative to each other in the first direction, the second part has a third side and a fourth side relative to each other in the first direction, the third side is closer to the first side than the fourth side, the water outlet of the water inlet is arranged on the first side, the first part is arranged around the second part, there is a gap between the first side and the third side, and between the circumferential inner wall of the first part and the circumferential outer wall of the second part to form the first cavity, and a first water outlet for connecting the first cavity and the second cavity is provided on the circumferential side wall of the second part, and the first water outlet is closer to the fourth side than the distance between the first water outlet and the third side.

[0010] According to some embodiments of the present invention, the third side protrudes in a cone shape toward the first side and toward the water outlet.

[0011] According to some embodiments of the present invention, the third side is a conical protrusion, and the angle between the generatrix at the tip of the protrusion and the rotation axis ranges from 15° to 33°, and the water outlet and the protrusion on the third side are on the same central axis.

[0012] According to some embodiments of the present invention, a plurality of the first water outlets are sequentially opened along the circumference of the second portion, and each of the first water outlets is in a strip shape extending from the fourth side toward the third side.

[0013] According to some embodiments of the present invention, the second part surrounds the third part, and the circumferential inner wall of the second part and the circumferential outer wall of the third part are spaced to form the second cavity. The third part has a fifth side and a sixth side relative to each other in the first direction, and the fifth side is closer to the third side than the sixth side. A second water outlet for connecting the second cavity and the third cavity is provided on the circumferential side wall of the third part, and the second water outlet is closer to the third side than the position of the first water outlet in the first direction, and the water outlet is provided on the sixth side.

[0014] According to some embodiments of the present invention, a plurality of the second water outlets are sequentially opened along the circumference of the third portion, and the second water outlets are in a strip shape extending from the fifth side toward the sixth side.

[0015] According to some embodiments of the present invention, a rectifier block is provided in the third chamber, and the rectifier block is located on the communication path between the water inlet side of the third chamber and the water outlet.

[0016] According to some embodiments of the present invention, at least two rectifier blocks are provided in the third cavity, the rectifier blocks are distributed in sequence along the first direction, and the projections of the rectifier blocks in the first direction are staggered.

[0017] According to some embodiments of the present invention, the main body also includes a water outlet cavity, which is connected to the water outlet, and a plurality of water outlet holes are opened on a side of the water outlet cavity away from the water outlet, and each of the water outlets is distributed around the water outlet within a projection range on the water outlet cavity along the first direction.

[0018] According to some embodiments of the present invention, the water inlet is provided with a Venturi channel, and the Venturi channel includes a water inlet area, a throat area, a negative pressure area and a pressure maintaining area which are connected in sequence. An air suction hole is opened on the water inlet, and the negative pressure area is connected to the external environment through the air suction hole. The maximum water flow cross-sectional area of ​​the throat area is smaller than the minimum water flow cross-sectional area of ​​the water inlet area, the minimum water flow cross-sectional area of ​​the negative pressure area is larger than the maximum water flow cross-sectional area of ​​the throat area, the maximum water flow cross-sectional area of ​​the pressure maintaining area is smaller than the minimum water flow cross-sectional area of ​​the negative pressure area, and the end of the pressure maintaining area away from the negative pressure area serves as the water outlet end of the water inlet.

[0019] The faucet according to the second aspect of the present invention includes a water outlet device.

[0020] The faucet according to the embodiment of the present invention has at least the following beneficial effects: when the faucet is used, the impact force of the water jet can be effectively released to avoid splashing and wetting the surrounding environment; there is no need to use a bubbler, which reduces clogging, and reduces the difficulty of cleaning and maintenance costs.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] FIG1 is a schematic structural diagram of a water outlet device;

[0024] FIG2 is a schematic diagram of the internal structure of FIG1;

[0025] FIG3 is a sectional view in the front direction of FIG1;

[0026] FIG4 is a schematic diagram of the direction of the water flow path of FIG3 ;

[0027] FIG5 is a schematic diagram of the water flow after the water enters the second chamber and impacts the outer wall of the third part;

[0028] FIG. 6 is a schematic diagram of water flow from the second chamber into the third part.

[0029] Figure numerals: main body 100; water inlet part 200; water outlet end 201; Venturi channel 210; water inlet area 211; throat area 212; negative pressure area 213; pressure maintaining area 214; air suction hole 215; first part 300; first side 301; second side 302; first cavity 310; second part 400; third side 401; fourth side 402; second cavity 410; first water outlet 420; third part 500; fifth side 501; sixth side 502; third cavity 510; water outlet 511; rectifier block 512; second water outlet 520; water outlet cavity 600; water outlet hole 610. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The present invention relates to a water outlet device, comprising a main body 100.

[0032] As shown in Fig. 1, Fig. 2 and Fig. 3, the main body 100 includes a water inlet 200, a first part 300, a second part 400 and a third part 500. The first part 300 can be provided in a hollow cylindrical structure, the second part 400 is arranged in the first part 300, and the first cavity 310 is defined between the inner wall of the first part 300 and the outer wall of the second part 400. The second part 400 can be provided in a hollow cylindrical structure, the third part 500 is arranged in the second part 400, and the second cavity 410 is defined between the outer wall of the third part 500 and the inner wall of the second part 400. The third part 500 can be provided in a hollow cylindrical structure, and the interior of the third part 500 is hollow to form a third cavity 510. The water inlet 200, the first cavity 310, the second cavity 410 and the third cavity 510 are connected in sequence, and an external water supply system such as a water pipe is connected to the water inlet 200. Water flows through the water inlet 200, the first cavity 310, the second cavity 410 and the third cavity 510 in sequence, and is discharged from the water outlet 511 of the third cavity 510. The end of the water inlet 200 close to the first part 300 is the water outlet 201. The water outlet 201 of the water inlet 200 faces the outer wall of the second part 400. The direction in which the water outlet 201 of the water inlet 200 sprays water into the first cavity 310 is defined as the first direction. In the direction shown in the figure, the first direction is vertically downward. The connection between the first cavity 310 and the second cavity 410 forms a corner, and the connection between the second cavity 410 and the third cavity 510 forms a corner. The direction of the water flow from the first chamber 310 to the second chamber 410 and the direction of the water flow from the second chamber 410 to the third chamber 510 form at least two changes in direction, and the change in direction can be understood as the water flow deviating from the first direction or being opposite to the first direction. For example, it can be that in the direction shown in the figure, the water flows downward from the first chamber 310 and then changes direction left and right / front and back to flow into the second chamber 410, forming a water flow change. It can be that when the water flows in the second chamber 410, it flows upward, forming a water flow change. It can be that the water flows from the second chamber 410 to the third chamber 510 along the left and right / front and back changes direction, forming a water flow change.

[0033] When in use, as shown in FIG. 4 , external water is sprayed from the water inlet 200 into the first cavity 310. After entering the first cavity 310, the water first impacts the outer wall of the second portion 400, breaking up the initial stream sprayed from the water inlet 200, and the water is dispersed around the first cavity 310, thereby buffering the initial water flow entering the first cavity 310. The dispersed water flows along the first cavity 310, changes direction when the water flows from the first cavity 310 into the second cavity 410, and impacts the outer wall of the third portion 500 after entering the second cavity 410. Among them, if the connection between the first cavity 310 and the second cavity 410 is set as a through-hole, after the water is sprayed into the second cavity 410, it will be diverted along the circumference of the third part 500, and then spread along the second cavity 410 to the direction of the third cavity 510, and the water flow will be buffered and slowed down; if the connection between the first cavity 310 and the second cavity 410 is set as multiple through-holes, the water flow will be dispersed to different through-holes in the first cavity 310 and then change direction to enter the second cavity 410, and the water flow will impact the outer wall of the third part 500 from different directions, and the water flow will be buffered and slowed down again. When the water flow flows from the second cavity 410 into the third cavity 510, it changes direction to buffer and slow down. After the supplementary water flow enters the third cavity 510, it flows to the location of the water outlet 511. The relative position distribution of the first cavity 310, the second cavity 410 and the third cavity 510 fully utilizes the longitudinal (vertical direction as shown in the figure) and transverse (horizontal direction as shown in the figure) spaces of the main body 100, effectively extending the flow distance of the water flow. At the same time, with the water flow changing direction multiple times, turbulence and vortices are formed at the bends, increasing the resistance of the water flow in the flow process to cause its kinetic energy loss, thereby decelerating the water flow, and spraying it out of the main body 100 after buffering and deceleration. The impact force of the sprayed water flow is effectively reduced, and the water flow sprayed onto the object achieves a splash-proof effect without the need to use a traditional bubbler.

[0034] The present invention also relates to a faucet, which uses the water outlet device in any embodiment. When the faucet is used, the impact force of the water jet can be effectively reduced to avoid splashing and wetting the surrounding environment. No bubbler is needed, which reduces blockage, cleaning difficulty and maintenance cost.

[0035] In one embodiment, as shown in FIG. 2 and FIG. 3 , the first part 300 is arranged around the second part 400. The first part 300 has a first side 301 and a second side 302 opposite to each other in the first direction, and the second part 400 has a third side 401 and a fourth side 402 opposite to each other in the first direction. In the direction shown in the figure, the first direction is the up-down direction, the upper side of the first part 300 is the first side 301, and the lower side is the second side 302. The upper side of the second part 400 is the third side 401, and the lower side is the fourth side 402. The second part 400 can be formed by extending from the second side 302 in a cylindrical shape toward the first side 301, and the second side 302 of the first part 300 and the fourth side 402 of the second part 400 can share the same side wall. There is a certain interval between the first side 301 and the third side 401, and there is a certain interval between the circumferential inner wall of the first part 300 and the circumferential outer wall of the second part 400, and the interval between the first part 300 and the second part 400 forms a first cavity 310. The water outlet 201 of the water inlet 200 is provided on the first side 301. The second part 400 is located below the water outlet 201 of the water inlet 200, and the water outlet 201 of the water inlet 200 faces the third side 401. A first water outlet 420 for connecting the first cavity 310 and the second cavity 410 is provided at the lower part of the second part 400. Compared with the position distance between the first water outlet 420 and the third side 401, the first water outlet 420 is closer to the fourth side 402. The first direction of the water outlet 201 of the water inlet 200 is vertically downward. Water is sprayed into the first cavity 310 from top to bottom, and the water flow impacts the top outer wall of the second part 400 and then disperses to the surroundings, and then flows downward, changes direction from the first water outlet 420 and flows into the second cavity 410. Among them, the top shape of the second part 400 can be a plane, a curved surface, etc. Based on the above embodiment, the top of the second part 400 is provided with a conical protrusion. The conical protrusion protrudes upward, and its top is a pointed tip. The water outlet end 201 of the water inlet portion 200 faces the top (third side 401) of the second portion 400. After water is sprayed into the first cavity 310 from the water inlet portion 200, the water flow hits the end of the conical protrusion of the second portion 400 and disperses, and the water flow flows obliquely along the top of the second portion 400, and then hits the inner wall of the first portion 300. When the water flows obliquely along the top of the second portion 400, it deviates from the first direction of the water inlet portion 200, and forms a buffer again after hitting the inside of the first portion 300. Preferably, the protrusion of the third side 401 is in the shape of a cone, and the angle between the generatrix at the tip of the protrusion and the rotation axis ranges from 15° to 33°, and the angle can be but is not limited to 15°, 17°, 20°, 23°, 25°, 28°, 31°, 33°, etc. The water outlet 201 of the water inlet 200 and the protrusion are on the same central axis. Water is sprayed vertically downward from the water outlet 201 of the water inlet 200 to the top corner of the second part 400 for relatively uniform dispersion. After the water flow is dispersed by the protrusion of the second part 400, it is rectified on the path from the first cavity 310 to the first water outlet 420.The rectifying flow direction of water in the first chamber 310 is opposite to the flow direction in the second chamber 410 .

[0036] Based on the above embodiment, the lower part of the second part 400 is provided with a plurality of first water outlets 420 in sequence along the circumferential direction. Each first water outlet 420 is in a strip shape and extends from the fourth side 402 to the third side 401. As shown in FIG5 , the water flow in the first cavity 310 is dispersed from the plurality of first water outlets 420 to form a plurality of water flows and enter the second cavity 410. The plurality of water flows impact the circumferential side wall of the third part 500 and are buffered and decelerated. At the same time, the water flows impact the outer wall of the third part 500 and then converge along the circumference of the third part 500. The confluence process also buffers the water flow velocity. Then the water flow gradually spreads in the second cavity 410 to the connecting position of the second cavity 410 and the third cavity 510. The plurality of first water outlets 420 increase the water flow area of ​​the first cavity 310 and the second cavity 410, and can be diverted from the circumference of the second part 400 to enter the second cavity 410. The plurality of first water inlets 420 ensures the water flow rate and prevents the first water inlets 420 from being blocked by impurities in the water for a long time. When the main body 100 is placed vertically for use, water enters the second cavity 410 from the lower part of the second part 400, and the water in the second cavity 410 surrounds the third part 500 and spreads upward, converting the dynamic potential energy into the gravitational potential energy, and the water flow speed is reduced.

[0037] In one embodiment, as shown in FIG. 2 and FIG. 3 , the second portion 400 is disposed around the third portion 500. The third portion 500 has a fifth side 501 and a sixth side 502 opposite to each other in the first direction. In the direction shown in the figure, the upper side of the third portion 500 is the fifth side 501, and the lower side is the sixth side 502. The fifth side 501 and the third side 401 may share the same side wall, and the sixth side 502 and the fourth side 402 may share the same side wall. The third portion 500 is provided with a second water outlet 520 for connecting the second cavity 410 and the third cavity 510. The second water outlet 520 is closer to the third side 401 than the first water outlet 420, and in the direction shown in the figure, the height of the second water outlet 520 is higher than the height of the first water outlet 420. The water outlet 511 of the third cavity 510 is provided at the bottom (sixth side 502) of the third portion 500. After entering the second chamber 410, the water spreads upward and slows down, and then flows into the third chamber 510 from the second water outlet 520, and the water flow is changed and buffered. After entering the third chamber 510, the water flows downward toward the water outlet 511. The flow direction of the water in the second chamber 410 is opposite to that in the third chamber 510.

[0038] Based on the above embodiment, as shown in FIGS. 2 and 6 , a plurality of second water outlets 520 are sequentially opened along the circumference of the third portion 500, and the second water outlets 520 extend in a strip shape from the fifth side 501 to the sixth side 502. When the water flows from the second cavity 410 into the third cavity 510, it is dispersed into a plurality of water flows by the plurality of second water outlets 520, and the plurality of water flows converge toward the center of the third cavity 510 after entering the third cavity 510. Each second water outlet 520 is distributed along the circumference of the third portion 500 to form a plurality of groups of second water outlets 520 facing each other. After the water flows from each two opposite second water outlets 520 into the third cavity 510, they collide and buffer each other. After the collision, each water flow converges at the center of the third cavity 510 to form a mixed flow, so that the water flow is sufficiently decelerated along the radial direction of the third cavity 510 when entering the third cavity 510 from the second cavity 410, and then the water flow changes direction and flows toward the direction where the water outlet 511 is located. In addition, the plurality of second water inlets 520 ensures the water flow rate and prevents the second water inlets 520 from being blocked by impurities in the water for a long time.

[0039] Among them, a rectifier block 512 is provided in the third chamber 510, and the rectifier block 512 is located on the communication path between the water inlet side of the third chamber 510 and the water outlet 511. The water inlet side of the third chamber 510 is the connection point between the second chamber 410 and the third chamber 510. The water flow hits the rectifier block 512, and the rectifier block 512 has a blocking effect on the water flow, and the water flow is buffered and decelerated again. The rectifier block 512 in the third chamber 510 can be set one, two or more. When at least two rectifier blocks 512 are provided, each rectifier block 512 is distributed in sequence along the first direction. The projection of each rectifier block 512 in the first direction is staggered distribution. In this embodiment, in the direction shown in the figure, two rectifier blocks 512 are provided in the third chamber 510, and the two rectifier blocks 512 are distributed up and down. In the top view direction, the two rectifier blocks 512 are distributed left and right. The rectifier block 512 can be integrally formed in the third chamber 510. Each rectifying block 512 has a certain interval in the vertical direction, and each rectifying block 512 can occupy half of the cross-sectional area of ​​the third chamber 510. Water flows from top to bottom in the third chamber 510, and impacts each rectifying block 512 to be gradually decelerated.

[0040] Based on the above embodiment, the main body 100 further includes a water outlet chamber 600. The water outlet chamber 600 is located at the bottom of the main body 100, and the water outlet chamber 600 is connected to the water outlet 511. A plurality of water outlet holes 610 are provided at the bottom of the water outlet chamber 600, and each water outlet 511 is distributed around the top projection range of the water outlet 511 in the water outlet chamber 600. Water flows downward from the water outlet 511 into the water outlet chamber 600. After entering the water outlet chamber 600, the water will impact on the bottom surface of the water outlet chamber 600 and disperse, and then form a plurality of fine water streams to spray out from each water outlet 511, further effectively reducing the flow rate and water pressure of the water flow, thereby achieving the purpose of water saving and splash prevention.

[0041] In one embodiment, as shown in FIG. 2 and FIG. 3 , the water inlet 200 is provided with a venturi channel 210. The venturi channel 210 includes a water inlet area 211, a throat area 212, a negative pressure area 213 and a pressure holding area 214 which are connected in sequence. An air suction through hole 215 is provided on the water inlet 200. The negative pressure area 213 is connected to the external environment through the air suction through hole 215. The water inlet area 211 can be set as a cylindrical cavity with equal diameters at various locations, or it can be set as a shrinking shape that gradually shrinks toward the throat area 212. The throat area 212 can be set as a cylindrical cavity with equal diameters at various locations, or it can be composed of a plurality of pore-shaped and mutually parallel cavities. The negative pressure area 213 can be set as a cylindrical cavity with equal diameters at various locations, or it can be set as an expanding shape that gradually expands away from the throat area 212. The pressure holding area 214 can be set as a cylindrical cavity with equal diameters at various locations, or it can be set as a conical shape, etc. The maximum water flow cross-sectional area of ​​the throat area 212 is smaller than the minimum water flow cross-sectional area of ​​the water inlet area 211. The minimum water flow cross-sectional area of ​​the negative pressure area 213 is larger than the maximum water flow cross-sectional area of ​​the throat area 212. The maximum water flow cross-sectional area of ​​the pressure holding area 214 is smaller than the minimum water flow cross-sectional area of ​​the negative pressure area 213. One end of the pressure holding area 214 away from the negative pressure area 213 serves as the water outlet end 201 of the water inlet part 200. External water enters from the water inlet area 211, and flows through the water inlet area 211, the throat area 212, the negative pressure area 213 and the pressure holding area 214 in sequence. According to the Venturi effect, negative pressure is formed when water passes through the negative pressure area 213, and external air is sucked into the negative pressure area 213 through the air intake hole 215 for water-gas mixing. The water-gas mixed fluid balances the pressures on the upper and lower sides when passing through the pressure holding area 214.

[0042] In the description of this specification, the description of reference terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water outlet device, comprising a main body (100), characterized in that: The main body (100) comprises a water inlet portion (200), a first portion (300), a second portion (400) and a third portion (500); the second portion (400) is arranged in the first portion (300); a first cavity (310) is defined between the first portion (300) and the second portion (400); the third portion (500) is arranged in the second portion (400); a second cavity (410) is defined between the second portion (400) and the third portion (500); a third cavity (510) is defined inside the third portion (500); the water inlet portion (200), the first cavity (310), the second cavity (410) and the third cavity (510) are sequentially connected; wherein a water outlet end (201) of the water inlet portion (200) faces an outer wall of the second portion (400); A corner is formed at a connection point between the first chamber (310) and the second chamber (410), a corner is formed at a connection point between the second chamber (410) and the third chamber (510), and the third chamber (510) is provided with a water outlet (511).

2. The water outlet device according to claim 1, characterized in that: The direction in which the water outlet (201) sprays water toward the first chamber (310) is defined as a first direction; the first portion (300) has a first side (301) and a second side (302) that are opposite to each other in the first direction; the second portion (400) has a third side (401) and a fourth side (402) that are opposite to each other in the first direction; the third side (401) is closer to the first side (301) than the fourth side (402); the water outlet (201) of the water inlet portion (200) is arranged on the first side (301); and the first portion (300) surrounds The second part (400) is provided with a gap between the first side (301) and the third side (401), and between the circumferential inner wall of the first part (300) and the circumferential outer wall of the second part (400) to form the first cavity (310); a first water outlet (420) for connecting the first cavity (310) and the second cavity (410) is provided on the circumferential side wall of the second part (400); compared with the distance between the first water outlet (420) and the third side (401), the first water outlet (420) is closer to the fourth side (402).

3. The water outlet device according to claim 2, characterized in that: The third side (401) is protruded in a cone shape toward the first side (301) and is directed toward the water outlet end (201).

4. The water outlet device according to claim 3, characterized in that: The third side (401) is a conical protrusion, and the angle between the generatrix at the tip of the protrusion and the rotation axis ranges from 15° to 33°. The water outlet end (201) and the protrusion on the third side (401) are located on the same central axis.

5. The water outlet device according to claim 2, characterized in that: A plurality of the first water passages (420) are sequentially opened along the circumference of the second portion (400), and each of the first water passages (420) is in a strip shape extending from the fourth side (402) toward the third side (401).

6. The water outlet device according to claim 2, characterized in that: The second part (400) surrounds the third part (500), and the circumferential inner wall of the second part (400) and the circumferential outer wall of the third part (500) are spaced to form the second cavity (410). The third part (500) has a fifth side (501) and a sixth side (502) opposite to each other in the first direction, and the fifth side (501) is closer to the third side (401) than the sixth side (502). A second water outlet (520) for connecting the second cavity (410) and the third cavity (510) is provided on the circumferential side wall of the third part (500), and the second water outlet (520) is closer to the third side (401) than the position of the first water outlet (420) in the first direction, and the water outlet (511) is provided on the sixth side (502).

7. The water outlet device according to claim 6, characterized in that: A plurality of the second water passages (520) are sequentially opened along the circumference of the third portion (500), and the second water passages (520) are in a strip shape extending from the fifth side (501) toward the sixth side (502).

8. The water outlet device according to claim 6, characterized in that: A rectifying block (512) is provided in the third chamber (510), and the rectifying block (512) is located on a communication path between the water inlet side of the third chamber (510) and the water outlet (511).

9. The water outlet device according to claim 8, characterized in that: At least two rectifier blocks (512) are provided in the third cavity (510), and the rectifier blocks (512) are sequentially spaced and distributed along the first direction, and the projections of the rectifier blocks (512) in the first direction are staggered distributions.

10. The water outlet device according to claim 6, characterized in that: The main body (100) further comprises a water outlet cavity (600), the water outlet cavity (600) being in communication with the water outlet (511), a plurality of water outlet holes (610) being provided on a side of the water outlet cavity (600) away from the water outlet (511), and the water outlets (511) being distributed around the projection range of the water outlet (511) on the water outlet cavity (600) along the first direction.

11. The water outlet device according to claim 1, characterized in that: The water inlet (200) is provided with a Venturi channel (210), the Venturi channel (210) comprising a water inlet area (211), a throat area (212), a negative pressure area (213) and a pressure holding area (214) which are connected in sequence; an air suction through hole (215) is provided on the water inlet (200); the negative pressure area (213) is connected to the external environment through the air suction through hole (215); the maximum water flow cross-sectional area of ​​the throat area (212) is smaller than the minimum water flow cross-sectional area of ​​the water inlet area (211); the minimum water flow cross-sectional area of ​​the negative pressure area (213) is larger than the maximum water flow cross-sectional area of ​​the throat area (212); the maximum water flow cross-sectional area of ​​the pressure holding area (214) is smaller than the minimum water flow cross-sectional area of ​​the negative pressure area (213); and one end of the pressure holding area (214) away from the negative pressure area (213) serves as a water outlet (201) of the water inlet (200).

12. A faucet, characterized in that: It comprises the water outlet device according to any one of claims 1 to 11.

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