A water outlet device and a shower head

Abstract

The present invention discloses a water outlet device and a shower head, comprising a shell and a water outlet nozzle, the water outlet nozzle comprising a plurality of water outlet layers, namely a first water outlet layer, a second water outlet layer and a third water outlet layer, the third water outlet layer is located below the second water outlet layer, the first water outlet layer comprises a first water inlet groove and a first water outlet cylinder which are interconnected, the second water outlet layer comprises a second water inlet groove and a second water outlet cylinder which are interconnected, the second water outlet cylinder is sleeved outside the first water outlet cylinder, the first water outlet cylinder can be inserted into the second water outlet cylinder, and the third water outlet layer comprises a third water inlet groove and a third water outlet cylinder which are interconnected. The shower head comprises the water outlet device as described above. By adopting the present invention, multiple layers of water spray patterns can be sprayed at the same water outlet position, with a strong flushing feeling, which not only improves the ornamental value, but also improves the user experience, and has a simple structure and is easy to install.

Description

Technical Field

[0001] The present invention relates to the technical field of bathroom products, and in particular to a water outlet device and a shower head. Background Art

[0002] Shower heads are common bathroom products. Traditional shower heads have a relatively simple structure, usually with only a single-structured water outlet. The water inlet channel of the water outlet is also a single channel. Water can enter the shower head from the water inlet pipe and enter the water outlet through the single water inlet channel. Finally, the water sprayed from the water outlet has the same pattern. Such a water outlet pattern is relatively monotonous, and the flushing effect is relatively general. It is difficult to meet the needs of high-end users in terms of visual effects and shower experience. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a water outlet device that can spray multiple layers of water splash patterns at the same water outlet position, has a strong flushing feeling, not only improves the ornamental value, but also improves the user experience, and has a simple structure and is easy to install.

[0004] In order to solve the above technical problems, the present invention provides a water outlet device, including a shell and a water outlet nozzle, the shell includes a water inlet pressure cover and a mounting seat, the water inlet pressure cover is provided with a water inlet hole, the water outlet nozzle is fixed on the mounting seat, and water can enter the water outlet nozzle from the water inlet hole.

[0005] The water outlet nozzle includes at least two water outlet layers, the two water outlet layers are divided into a first water outlet layer and a second water outlet layer, the first water outlet layer and the second water outlet layer are stacked, the first water outlet layer includes a first water inlet groove and a first water outlet tube that are interconnected, the second water outlet layer includes a second water inlet groove and a second water outlet tube that are interconnected, the second water outlet tube is sleeved outside the first water outlet tube, the first water outlet layer can independently take in and discharge water through the first water inlet groove and the first water outlet tube, and the second water outlet layer can independently take in and discharge water through the second water inlet groove and the second water outlet tube.

[0006] As an improvement of the above solution, a water storage tank is provided on the mounting seat, the second water outlet layer is fixed to the bottom of the water storage tank, the first water outlet layer is clamped to the upper part of the second water outlet layer, and the first water outlet cylinder can be inserted into the second water outlet cylinder.

[0007] As an improvement of the above scheme, the first water inlet trough is arranged at the upper part of the first water outlet layer and is symmetrically distributed around the central axis of the first water outlet cylinder, the first water outlet cylinder is arranged at the lower part of the first water outlet layer, the inlet of the first water inlet trough is located at the side of the first water outlet layer, and the outlet of the first water inlet trough is located in the middle part of the first water outlet layer and is connected to the first water outlet cylinder.

[0008] The water outlet direction of the first water inlet groove deviates from the central axis direction of the first water outlet cylinder.

[0009] As an improvement of the above solution, the first water outlet layer also includes a buffer groove, which is arranged in the middle of the first water outlet layer and above the first water outlet cylinder, and one side of the first water inlet groove is tangent to the side wall of the buffer groove.

[0010] A water outlet hole is provided at the bottom of the buffer tank, and the water outlet hole is communicated with the first water outlet cylinder. The water outlet area of ​​the buffer tank is larger than the hole area of ​​the water outlet hole.

[0011] As an improvement of the above-mentioned scheme, a first clamping block is provided on the first water outlet layer, the first clamping block is located on the outer side of the first water outlet layer and is symmetrically distributed on the periphery of the first water outlet tube, and a first clamping groove is provided on the inner side of the second water outlet layer, the first clamping groove corresponds to the position of the first clamping block, and the first clamping block can be inserted into the first clamping groove.

[0012] As an improvement of the above scheme, the second water outlet cylinder is arranged at the lower part of the second water outlet layer, the inlet of the second water inlet trough is located at the side of the second water outlet layer, and the outlet of the second water inlet trough is located in the middle part of the second water outlet layer and is connected to the second water outlet cylinder.

[0013] As an improvement of the above scheme, the second water inlet groove is symmetrically distributed around the central axis of the second water outlet cylinder, the water outlet direction of the second water inlet groove deviates from the central axis direction of the second water outlet cylinder, and one side of the second water inlet groove is tangent to the side wall of the second water outlet cylinder.

[0014] As an improvement of the above scheme, the first water outlet layer is also provided with a second clamping block, which is arranged on the outer side of the first water outlet layer and symmetrically distributed around the central axis of the first water outlet cylinder. The position of the second clamping block corresponds to the position of the second water inlet groove, and the second clamping block can be inserted into the second water inlet groove.

[0015] As an improvement of the above solution, the thickness of the second clamping block is smaller than the height of the second water inlet groove, and a water inlet gap is left between the second water inlet groove and the second clamping block.

[0016] As an improvement of the above scheme, the inner cavity of the first water outlet cylinder forms a first water outlet channel, the inner wall of the second water outlet cylinder and the outer wall of the first water outlet cylinder form a second water outlet channel, the first water outlet channel is located on the inner side of the second water outlet channel, and the first water outlet channel and the second water outlet channel can spray water at the same time.

[0017] As an improvement of the above scheme, the water outlet nozzle also includes a third water outlet layer, which is arranged on the water storage tank. The third water outlet layer is provided with an installation groove, which is arranged at the bottom of the water inlet tank, and the bottom of the second water outlet layer can be fixed on the installation groove.

[0018] As an improvement of the above scheme, the third water outlet layer also includes a third water inlet trough and a third water outlet cylinder. The third water outlet cylinder is arranged in the middle of the installation groove. The third water inlet trough is symmetrically distributed around the central axis of the third water outlet cylinder, and the water outlet direction of the third water inlet trough deviates from the central axis direction of the third water outlet cylinder.

[0019] A water-passing groove is provided at the bottom of the second water-outlet layer. The position of the water-passing groove corresponds to the position of the third water-inlet groove. The water-passing groove and the third water-inlet groove constitute a water-inlet channel of the third water-outlet layer.

[0020] As an improvement of the above scheme, the inner wall of the third water outlet cylinder and the outer wall of the second water outlet cylinder form a third water outlet channel, the second water outlet channel is located on the inner side of the third water outlet channel, and the first water outlet channel, the second water outlet channel and the third water outlet channel can spray water at the same time.

[0021] As an improvement of the above solution, the positions of the first water inlet trough, the second water inlet trough and the third water inlet trough are staggered with each other.

[0022] The present invention also provides a shower head, comprising the water outlet device as described above.

[0023] The implementation of the present invention has the following beneficial effects:

[0024] The water outlet device of the present invention is provided with a water outlet nozzle, and the water outlet nozzle is divided into at least two layers, namely a first water outlet layer and a second water outlet layer, the first water outlet layer and the second water outlet layer are respectively provided with a first water inlet groove and a second water inlet groove for water inlet, and a first water outlet cylinder and a second water outlet cylinder for water outlet, the second water outlet cylinder is sleeved outside the first water outlet cylinder, and the first water outlet cylinder and the second water outlet cylinder can discharge water independently without affecting each other, so in the same water outlet position, the first water outlet cylinder and the second water outlet cylinder can discharge water at the same time, and the water outlet pattern is divided into an inner circle and a middle circle, thereby forming a unique double-layer water splash pattern.

[0025] In addition, the water outlet nozzle may further include a third water outlet layer, which can independently utilize a third water inlet groove and a third water outlet tube to independently inlet and spray water, and the third water outlet layer is located at the same position of the first water outlet layer and the second water outlet layer, and the inner wall of the third water outlet tube and the outer wall of the second water outlet tube form a third water outlet channel, which can simultaneously form a multi-layer water splash pattern of an inner circle, a middle circle and an outer circle with the first water outlet channel and the second water outlet channel, and therefore has a unique aesthetic feeling and can improve the water splash appreciation of the water outlet device.

[0026] At the same time, the first water inlet groove, the second water inlet groove and the third water inlet groove all let in water from the side. During the water inlet process, water will generate tangential kinetic energy in the first water outlet channel, the second water outlet channel and the third water outlet channel, and then can generate centrifugal motion in the first water outlet cylinder, the second water outlet cylinder and the third water outlet cylinder, generating a multi-layer "lantern"-like water outlet pattern when discharging water, which has a good visual effect.

[0027] Moreover, the first water inlet trough, the second water inlet trough and the third water inlet trough are all symmetrically arranged, and the water droplets generated after the water flow is counter-rotated are larger, so they have a better flushing effect, can obtain a better shower effect, and enhance the user experience.

[0028] The water outlet device of the present invention utilizes the water inlet pressure cover and the installation groove and the second water inlet groove of the water outlet nozzle itself for water inlet and outlet to respectively clamp and fix the second water outlet layer and the first water outlet layer, so it has the advantages of simple structure and convenient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the disassembled structure of the first embodiment of the water outlet device of the present invention;

[0030] Figure 2 yes Figure 1 Partial diagram of A in the figure;

[0031] Figure 3 is a schematic cross-sectional structural diagram of a first embodiment of a water outlet device of the present invention;

[0032] Figure 4 yes Figure 3 Partial diagram of B in the figure;

[0033] Figure 5 It is a schematic diagram of the disassembled structure of the second embodiment of the water outlet device of the present invention;

[0034] Figure 6 yes Figure 5 Partial diagram of C in the middle;

[0035] Figure 7 yes Figure 5 Partial diagram of D in the middle;

[0036] Figure 8 is a schematic cross-sectional structural diagram of a second embodiment of a water outlet device of the present invention;

[0037] Fig. 9 yes Figure 8 Partial view of E in the figure. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0039] See also Figure 1 and Figure 2 The first embodiment of the present invention discloses a water outlet device, including a housing 1 and a water outlet nozzle 2. The housing 1 includes a water inlet pressure cover 11 and a mounting seat 12. The water inlet pressure cover 11 is provided with a water inlet hole 111. The water outlet nozzle 2 is fixed on the mounting seat 12, and water can enter the water outlet nozzle 2 from the water inlet hole 111. In order to achieve multi-layer water inlet and water outlet, the water outlet nozzle 2 includes at least two water outlet layers, including a first water outlet layer 21 and a second water outlet layer 22. The first water outlet layer 21 and the second water outlet layer 22 are stacked, wherein the first water outlet layer 21 can be clamped on the second water outlet layer 22, and the first water outlet layer 21 and the second water outlet layer 22 together constitute a water outlet position. In this water outlet position, the first water outlet layer 21 includes a first water inlet groove 211 and a first water outlet cylinder 212 which are interconnected, and the second water outlet layer 22 includes a second water inlet groove 221 and a second water outlet cylinder 222 which are interconnected. The first water inlet groove 211 and the second water inlet groove 221 are used for water intake, and the first water outlet cylinder 212 and the second water outlet cylinder 222 are used for spraying water. The second water outlet cylinder 222 is sleeved outside the first water outlet cylinder 212, so that in the same water outlet position, the first water outlet cylinder 212 and the second water outlet cylinder 222 can form a double-layer water splash with water outlet from the inner circle and the outer circle at the same time, the first water outlet layer 21 can independently take in and discharge water through the first water inlet groove 211 and the first water outlet cylinder 212, and the second water outlet layer 22 can independently take in and discharge water through the second water inlet groove 221 and the second water outlet cylinder 222, the water inlet and outlet of the first water outlet layer 21 and the water inlet and outlet of the second water outlet layer 22 do not affect each other, so double-layer water splash water outlet can be achieved.

[0040] The water outlet device of the first embodiment of the present invention is provided with a water outlet nozzle 2, and the water outlet nozzle 2 is divided into at least a first water outlet layer 21 and a second water outlet layer 22. The first water outlet layer 21 and the second water outlet layer 22 are respectively provided with a first water inlet groove 211 and a second water inlet groove 221 for water inlet, and a first water outlet cylinder 212 and a second water outlet cylinder 222 for water outlet. The second water outlet cylinder 222 is sleeved outside the first water outlet cylinder 212, and the first water outlet cylinder 212 and the second water outlet cylinder 222 can discharge water separately without affecting each other. Therefore, in the same water outlet position, the first water outlet cylinder 212 and the second water outlet cylinder 222 can discharge water at the same time, and the water outlet pattern is divided into an inner circle and an inner circle, thereby forming a unique double-layer water splash pattern.

[0041] In order to allow water to enter the first water inlet groove 211 and the second water inlet groove 221, the mounting seat 12 is provided with a water storage groove 121, and the second water outlet layer 22 is fixed to the bottom of the groove body of the water storage groove 121, so that water can enter the water storage groove 121 from the water inlet hole 111, and enter the first water inlet groove 211 and the second water inlet groove 221 from the water storage groove 121 under the action of water pressure. The first water outlet layer 21 is clamped on the upper part of the second water outlet layer 22, and the first water outlet cylinder 212 can be inserted into the second water outlet cylinder 222, so as to achieve the fixation between the first water outlet layer 21 and the second water outlet layer 22. In addition, the bottom of the water inlet pressure cover 11 is in contact with the top of the water outlet nozzle 2, and the water inlet pressure cover 11 can press the water outlet nozzle 2 into the mounting seat 12, so as to ensure the fixation of the water outlet nozzle 2.

[0042] The first water inlet groove 211 is arranged at the upper part of the first water outlet layer 21 and is symmetrically distributed around the central axis of the first water outlet cylinder 212. In this embodiment, the number of the first water inlet grooves 211 is 2 and they are symmetrically arranged on both sides of the first water outlet layer 21. In other embodiments, the number of the first water inlet grooves 211 can also be multiple. The first water outlet cylinder 212 is arranged at the lower part of the first water outlet layer 21 for discharging water at the lower part. The inlet of the first water inlet groove 211 is located at the side of the first water outlet layer 21, and the outlet of the first water inlet groove 211 is located in the middle of the first water outlet layer 21 and is connected to the first water outlet cylinder 212. Therefore, after water enters the water storage tank 121, it will enter the first water outlet cylinder 212 from both sides of the first water outlet cylinder 212 at the same time. The water outlet direction of the first water inlet groove 211 deviates from the central axis direction of the first water outlet cylinder 212. Therefore, when water enters the first water outlet cylinder 212 from the first water inlet groove 211, it does not enter from the axial direction of the first water outlet cylinder 212, but enters from the eccentric direction of the first water outlet cylinder 212. In this way, water will produce centrifugal motion when entering the first water outlet cylinder 212, and will form "lantern"-shaped granular water when spraying out from the first water outlet cylinder 212. Since the first water inlet groove 211 is symmetrically arranged, the water droplets generated after the water flow counter-rotates are larger. Therefore, this design is both beautiful and has a good flushing effect, and can obtain a better shower experience. In order to pressurize the water entering the first water outlet cylinder 212, the first water outlet layer 21 also includes a buffer groove 213, which is arranged in the middle of the first water outlet layer 21 and above the first water outlet cylinder 212. One side of the first water inlet groove 211 is tangent to the side wall of the buffer groove 213, and water will rotate in from the side wall of the buffer groove 213. The bottom of the buffer groove 213 is provided with a water outlet hole 214, and the water outlet hole 214 is connected to the first water outlet cylinder 212. The water will rotate in the buffer groove 213 and spray out from the water outlet hole 214 to form "lantern" shaped granular water. The water outlet area of ​​the buffer groove 213 is larger than the hole area of ​​the water outlet hole 214. Therefore, when passing through the water outlet hole 214, the water will be pressurized, thereby further increasing the water outlet impact force.

[0043] In order to fix the first water outlet layer 21, a first clamping block 215 is provided on the first water outlet layer 21, and the first clamping block 215 is located on the outer side of the first water outlet layer 21 and symmetrically distributed on the periphery of the first water outlet tube 212. A first clamping groove 223 is provided on the inner side of the second water outlet layer 22, and the first clamping groove 223 corresponds to the position of the first clamping block 215. The first clamping block 215 can be inserted into the first clamping groove 223, thereby forming a fixation between the first water outlet layer 21 and the second water outlet layer 22. The first clamping block 215 is symmetrically distributed on the periphery of the first water outlet tube 212 to prevent the first water outlet tube 212 from spinning easily when taking in water, thereby fixing the first water outlet layer 21 from the horizontal direction.

[0044] The second water outlet cylinder 222 is arranged at the lower part of the second water outlet layer 22, and is used to discharge water from the lower part. The inlet of the second water inlet groove 221 is located at the side of the second water outlet layer 22, so the second water outlet layer 22 also receives water from the side. The outlet of the second water inlet groove 221 is located at the middle of the second water outlet layer 22 and is connected to the second water outlet cylinder 222. After water enters the water storage tank 121, it will enter the second water outlet cylinder 222 from the side of the second water outlet layer 22. The second water inlet grooves 221 are symmetrically distributed around the central axis of the second water outlet cylinder 222. In this embodiment, the number of the second water inlet grooves 221 is 2 and they are symmetrically arranged on both sides of the second water outlet layer 22. In other embodiments, the number of the second water inlet grooves 221 can also be multiple. The water outlet direction of the second water inlet groove 221 deviates from the central axis direction of the second water outlet cylinder 222. One side of the second water inlet groove 221 is tangent to the side wall of the second water outlet cylinder 222. Similar to the first water outlet layer 21, when water enters the second water outlet cylinder 222 from the second water inlet groove 221, it does not enter from the axial direction of the second water outlet cylinder 222, but enters from the eccentric direction of the second water outlet cylinder 222. The water will produce centrifugal motion in the second water outlet cylinder 222, thereby forming "lantern"-shaped granular water when sprayed out, and the generated water droplets are larger and the flushing feeling is stronger. Combined with the first water outlet layer 21, the first water outlet layer 21 can simultaneously form a double-layer "lantern" water splash of the inner circle and the middle circle with the first water outlet layer 21, which has a better flushing effect and aesthetics.

[0045] See also Figure 3In order to further fix the first water outlet layer 21, the first water outlet layer 21 is also provided with a second clamping block 216. The second clamping block 216 is arranged on the outer side of the first water outlet layer 21 and is symmetrically distributed around the central axis of the first water outlet tube 212. The position of the second clamping block 216 corresponds to the position of the second water inlet groove 221. The second clamping block 216 can be inserted into the second water inlet groove 221. The first water outlet layer 21 can be fixed by using the second water inlet groove 221. The second water inlet groove 221 not only provides water inlet for the second water outlet layer 22, but also can fix the first water outlet layer 21, which has the effect of one object with multiple uses. Moreover, the second water inlet groove 221 used for water inlet of the second water outlet layer 22 itself can be used to fix the first water inlet layer, which can make the structure simple and easy to install. In order not to affect the water inflow of the second water outlet layer 22 , the thickness of the second block 216 is smaller than the height of the second water inlet groove 221 , and a water inlet gap is left between the second water inlet groove 221 and the second block 216 , through which water can enter the second water outlet cylinder 222 .

[0046] See also Figure 4 In the overall effect, the inner cavity of the first water outlet cylinder 212 forms a first water outlet channel 217, the inner wall of the second water outlet cylinder 222 and the outer wall of the first water outlet cylinder 212 form a second water outlet channel 224, and the first water outlet channel 217 is on the inner side of the second water outlet channel 224, that is, the second water outlet channel 224 is in the outer circle and the first water outlet channel 217 is in the inner circle. The first water outlet channel 217 and the second water outlet channel 224 can spray water at the same time, forming a double-layer "lantern" water splash pattern of an inner circle and a middle circle.

[0047] See also Figure 5-Figure 9In order to further improve the practicality and aesthetics, the present invention also discloses a second embodiment. The difference between the second embodiment and the first embodiment is that, in addition to the first water outlet layer 21 and the second water outlet layer 22, the water outlet nozzle 2 also includes a third water outlet layer 23. The third water outlet layer 23 is arranged on the water storage tank 121. The third water outlet layer 23 is provided with a mounting groove 233. The mounting groove 233 is arranged at the bottom of the water inlet tank. The bottom of the second water outlet layer 22 can be fixed on the mounting groove 233, thereby forming the fixing of the second water outlet layer 22 and the third water outlet layer 23. In the second embodiment, the third water outlet layer 23 is integrated with the water storage tank 121. In other embodiments, the third water outlet layer 23 can also be arranged separately and mounted and fixed with the water storage tank 121. Specifically, the third water outlet layer 23 further includes a third water inlet groove 231 and a third water outlet cylinder 232, which are used for water inlet and water outlet, respectively. The third water outlet cylinder 232 is arranged in the middle of the installation groove 233, and water is sprayed out from the third water outlet cylinder 232. The third water inlet groove 231 is symmetrically distributed around the central axis of the third water outlet cylinder 232, and the water outlet direction of the third water inlet groove 231 deviates from the central axis direction of the third water outlet cylinder 232. Similar to the first water outlet layer 21 and the second water outlet layer 22, after water enters the water storage tank 121, it will enter the third water outlet cylinder 232 from both sides of the third water outlet cylinder 232 at the same time. The water will generate centrifugal motion in the third water outlet cylinder 232, so "lantern"-shaped granular water will be formed when sprayed out.

[0048] Since the third water outlet layer 23 is located at the bottom and water is difficult to enter, in order to increase the water inlet flow rate of the third water outlet layer 23, a water through groove 225 is provided at the bottom of the second water outlet layer 22, and the position of the water through groove 225 corresponds to the position of the third water inlet groove 231. The water through groove 225 and the third water inlet groove 231 constitute the water inlet channel of the third water outlet layer 23, thereby increasing the water inlet flow rate of the third water outlet layer 23. The inner wall of the third water outlet cylinder 232 and the outer wall of the second water outlet cylinder 222 form a third water outlet channel 234. The second water outlet channel 224 is located on the inner side of the third water outlet channel 234. Therefore, the third water outlet channel 234 is equivalent to the outer circle of the water splash, the second water outlet channel 224 is equivalent to the middle circle of the water splash, and the first water outlet channel 217 is equivalent to the inner circle of the water splash. Since the inlet and outlet of water are independent of each other, the first water outlet channel 217, the second water outlet channel 224 and the third water outlet channel 234 can spray water at the same time, and can form a unique inner circle, middle circle and outer circle of multi-layer "lantern" water splash. Compared with the first embodiment, this embodiment further improves the aesthetics and the user's shower experience.

[0049] In order not to affect the water inflow of each water outlet layer, the positions of the first water inlet groove 211, the second water inlet groove 221 and the third water inlet groove 231 are staggered with each other, thereby ensuring the independence of water inflow and water outflow between the first water outlet layer 21, the second water outlet layer 22 and the third water outlet layer 23.

[0050] The embodiment of the present invention also discloses a shower head (not shown in the figure), the shower head includes the water outlet device as described above, the water outlet device includes three water outlet layers, namely the first water outlet layer 21, the second water outlet layer 22 and the third water outlet layer 23, the three water outlet layers are stacked on each other, and the water inlet and the water outlet are independent of each other. When the water is inlet, the first water outlet layer 21, the second water outlet layer 22 and the third water outlet layer 23 are all inlet from the side, and can form a rotating water flow inside, and finally when spraying, can simultaneously form a unique inner circle, middle circle and outer circle of multi-layer "lantern" water splash at the same water outlet position, so it has a unique aesthetic feeling and can improve the ornamental value of the water splash of the water outlet device. Moreover, the water in the first water outlet layer 21, the second water outlet layer 22 and the third water outlet layer 23 can be counter-rotated, and the water droplets generated are larger, have a better flushing effect, can obtain a better shower effect, and improve the user experience.

[0051] The above are preferred embodiments of the present invention. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A water outlet device, characterized in that: It comprises a shell and a water outlet nozzle, the shell comprises a water inlet pressure cover and a mounting seat, the water inlet pressure cover is provided with a water inlet hole, the water outlet nozzle is fixed on the mounting seat, and water can enter the water outlet nozzle from the water inlet hole; The water outlet nozzle comprises at least two water outlet layers, the two water outlet layers are divided into a first water outlet layer and a second water outlet layer, the first water outlet layer and the second water outlet layer are stacked, the first water outlet layer comprises a first water inlet groove and a first water outlet tube which are interconnected, the second water outlet layer comprises a second water inlet groove and a second water outlet tube which are interconnected, the second water outlet tube is sleeved outside the first water outlet tube, the first water outlet layer can independently take in and discharge water through the first water inlet groove and the first water outlet tube, and the second water outlet layer can independently take in and discharge water through the second water inlet groove and the second water outlet tube; The mounting seat is provided with a water storage tank, the second water outlet layer is fixed to the bottom of the tank body of the water storage tank, the first water outlet layer is clamped to the upper part of the second water outlet layer, and the first water outlet cylinder can be inserted into the second water outlet cylinder; The first water outlet layer is also provided with a second clamping block, which is arranged on the outer side of the first water outlet layer and symmetrically distributed around the central axis of the first water outlet tube. The position of the second clamping block corresponds to the position of the second water inlet groove, and the second clamping block can be inserted into the second water inlet groove.

2. The water outlet device according to claim 1, characterized in that: The first water inlet trough is arranged at the upper part of the first water outlet layer and is symmetrically distributed around the central axis of the first water outlet cylinder. The first water outlet cylinder is arranged at the lower part of the first water outlet layer. The inlet of the first water inlet trough is located at the side of the first water outlet layer. The outlet of the first water inlet trough is located at the middle part of the first water outlet layer and is connected to the first water outlet cylinder. The water outlet direction of the first water inlet groove deviates from the central axis direction of the first water outlet cylinder.

3. The water outlet device according to claim 1, characterized in that: The first water outlet layer further comprises a buffer groove, which is arranged in the middle of the first water outlet layer and above the first water outlet cylinder, and one side of the first water inlet groove is tangent to the side wall of the buffer groove; A water outlet hole is provided at the bottom of the buffer tank, and the water outlet hole is communicated with the first water outlet cylinder. The water outlet area of ​​the buffer tank is larger than the hole area of ​​the water outlet hole.

4. The water outlet device according to claim 1, characterized in that: A first clamping block is also provided on the first water outlet layer. The first clamping block is located on the outer side of the first water outlet layer and symmetrically distributed on the periphery of the first water outlet tube. A first clamping groove is provided on the inner side of the second water outlet layer. The first clamping groove corresponds to the position of the first clamping block, and the first clamping block can be inserted into the first clamping groove.

5. The water outlet device according to claim 1, characterized in that: The second water outlet cylinder is arranged at the lower part of the second water outlet layer, the inlet of the second water inlet trough is located at the side of the second water outlet layer, and the outlet of the second water inlet trough is located in the middle part of the second water outlet layer and communicated with the second water outlet cylinder.

6. The water outlet device according to claim 1, characterized in that: The second water inlet grooves are symmetrically distributed around the central axis of the second water outlet cylinder, the water outlet direction of the second water inlet grooves deviates from the central axis direction of the second water outlet cylinder, and one side of the second water inlet groove is tangent to the side wall of the second water outlet cylinder.

7. The water outlet device according to claim 1, characterized in that: The thickness of the second clamping block is smaller than the height of the second water inlet groove, and a water inlet gap is reserved between the second water inlet groove and the second clamping block.

8. The water outlet device according to claim 2, characterized in that: The inner cavity of the first water outlet cylinder forms a first water outlet channel, the inner wall of the second water outlet cylinder and the outer wall of the first water outlet cylinder form a second water outlet channel, the first water outlet channel is located on the inner side of the second water outlet channel, and the first water outlet channel and the second water outlet channel can spray water at the same time.

9. The water outlet device according to claim 8, characterized in that: The water outlet nozzle also includes a third water outlet layer, which is arranged on the water storage tank. The third water outlet layer is provided with a mounting groove, which is arranged at the bottom of the water storage tank. The bottom of the second water outlet layer can be fixed on the mounting groove.

10. The water outlet device according to claim 9, characterized in that: The third water outlet layer further includes a third water inlet groove and a third water outlet cylinder. The third water outlet cylinder is arranged in the middle of the installation groove. The third water inlet grooves are symmetrically distributed around the central axis of the third water outlet cylinder. The water outlet direction of the third water inlet groove deviates from the central axis direction of the third water outlet cylinder. A water-passing groove is provided at the bottom of the second water-outlet layer. The position of the water-passing groove corresponds to the position of the third water-inlet groove. The water-passing groove and the third water-inlet groove constitute a water-inlet channel of the third water-outlet layer.

11. The water outlet device according to claim 10, characterized in that: The inner wall of the third water outlet cylinder and the outer wall of the second water outlet cylinder form a third water outlet channel, the second water outlet channel is located inside the third water outlet channel, and the first water outlet channel, the second water outlet channel and the third water outlet channel can spray water at the same time.

12. The water outlet device according to claim 11, characterized in that: The positions of the first water inlet trough, the second water inlet trough and the third water inlet trough are staggered with each other.

13. A shower head, characterized in that: It comprises a water outlet device as described in any one of claims 1 to 12.

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