Shower head

Abstract

The utility model discloses a shower head which comprises a water outlet disc, an upper cover and an automatic switching mechanism. Multiple circles of nozzles are sequentially distributed on the water outlet disc at intervals in the radial direction. An upper cover sleeve and a plurality of upper cover water outlet holes are arranged in the middle of the top face of the upper cover. The bottom face of the upper cover is provided with multiple circles of annular water channels, the multiple circles of annular water channels are communicated with the upper cover water outlet holes in a one-to-one correspondence mode through multiple connecting water channels, and each circle of annular water channel is provided with at least one circle of nozzles. The automatic switching mechanism is connected with the upper cover sleeve and comprises a water inlet connector and a switching rotary disc, and a water through hole is formed in the switching rotary disc. And the switching turntable is assembled in the upper cover sleeve and can automatically rotate under the action of water flow. When the switching turntable rotates, the water through holes are sequentially communicated with the different water outlet holes of the upper cover, and water is sequentially supplied to the corresponding annular water channels, so that the nozzles in the multiple circles of annular water channels can be sequentially switched to spray water, the shower head always sprays water, the nozzles in different circles alternately spray water, and the massage effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of bathroom product technology, and in particular to a shower head. Background Technology

[0002] Showerheads are bathroom products used for showering. To improve the user experience, showerheads generally have a manual water flow switching mechanism to switch between different water flow effects. Each time the user operates the manual water flow switching mechanism, the showerhead provides one water flow effect, resulting in a single water flow effect and discontinuous switching between different water flow effects.

[0003] In the prior art, Chinese utility model patent CN217774469U discloses a shower head with a water path switching structure, which is configured with a switching component, a rotating component, and a water distribution component. The switching component includes a knob, and the rotating component includes a rotating disc, which mainly consists of a main disc body and a connecting rod. The knob is fixedly connected to the connecting rod, and thus the knob can drive the rotating disc to rotate. The knob is located at the bottom of the shower head cover and is used for user operation. The user can rotate the knob to drive the rotating disc to rotate a certain angle to achieve a single water output effect. The water output effect is singular, and the switching of the water output effect is discontinuous. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a new type of shower head that can automatically and continuously switch between different water spray effects to provide a massage function.

[0005] This utility model provides a shower head, including a water outlet plate, an upper cover connected to the water outlet plate, and an automatic switching mechanism having a water inlet connector and a switching turntable;

[0006] The water outlet plate is provided with multiple rings of nozzles arranged radially at intervals.

[0007] The top surface of the upper cover is provided with an upper cover sleeve and multiple upper cover water outlet holes. The multiple upper cover water outlet holes are located in the upper cover sleeve and are arranged at intervals around the center of the upper cover sleeve.

[0008] The bottom surface of the top cover is provided with multiple annular water channels in a radial direction. Each annular water channel is connected to a water outlet of the top cover through a connecting water channel. Each annular water channel has at least one ring of nozzles.

[0009] The automatic switching mechanism is connected to the upper cover sleeve. The switching turntable is provided with a water passage hole. The switching turntable is pivotally mounted in the upper cover sleeve and can be automatically rotated by the water flow.

[0010] When the switching turntable is in automatic rotation, the water passage can only connect with one of the water outlets of the upper cover at a time, and the nozzles in the multiple annular water channels can switch water spraying sequentially.

[0011] In one of the alternative technical solutions, a circular water channel is provided in the central area of ​​the bottom surface of the top cover, and a plurality of water outlet holes of the top cover are located in the circular water channel, and the circular water channel has at least one ring of nozzles;

[0012] The connecting waterway extends radially along the top cover, with the proximal end of each connecting waterway located in the circular waterway and connected to a water outlet of the top cover, and the distal end of each connecting waterway connected to an annular waterway.

[0013] One of the connecting waterways has a waterway opening at its near end, which is connected to the circular waterway. The nozzle in the circular waterway sprays water simultaneously with the nozzle in one of the annular waterways.

[0014] In one alternative technical solution, the nozzle in the second annular waterway along the direction from the inside out of the plurality of annular waterways sprays water simultaneously with the nozzle in the circular waterway.

[0015] In one of the alternative technical solutions, at least one of the annular waterways is divided into two branch waterways by at least one of the connecting waterways;

[0016] The upper cover is provided with an internal water channel, one end of which is located in one of the branch water channels, and the other end of which is located in another of the branch water channels.

[0017] In one of the alternative technical solutions, the top surface of the upper cover is provided with an upper cover protrusion, which spans the connecting waterway along the width direction of the connecting waterway;

[0018] The built-in water channel is located in the protrusion of the upper cover.

[0019] In one of the alternative technical solutions, the two end openings of the built-in waterway are respectively arranged adjacent to the two side edges of the connecting waterway along the width direction.

[0020] In one of the alternative technical solutions, the top surface of the top cover is provided with three water outlet holes;

[0021] The multiple annular waterways are divided into an inner annular waterway, a middle annular waterway, and an outer annular waterway in a radial direction from the inside to the outside, with the inner annular waterway surrounding the outer periphery of the circular waterway.

[0022] The multiple connecting waterways are correspondingly divided into a first connecting waterway that connects to the inner annular waterway, a second connecting waterway that connects to the middle annular waterway, and a third connecting waterway that connects to the outer annular waterway.

[0023] The waterway opening is located near the end of the second connecting waterway.

[0024] In one of the alternative technical solutions, the inner annular waterway is divided into two branch waterways by the second connecting waterway and the third connecting waterway;

[0025] The upper cover is provided with built-in water channels corresponding to the positions of the second connecting water channel and the third connecting water channel. One end of the built-in water channel is located in one section of the branch water channel, and the other end of the built-in water channel is located in another section of the branch water channel.

[0026] In one of the alternative technical solutions, the automatic switching mechanism includes a connecting sleeve and an impeller, and the water inlet connector is located on the top plate of the connecting sleeve;

[0027] The connecting sleeve has a partition, and a water inlet cavity is formed between the partition and the top plate. Multiple oblique water outlets are evenly distributed along the circumferential direction on the partition.

[0028] The connecting sleeve is sleeved with the upper cover sleeve, and the impeller is pivotally mounted in the upper cover sleeve and located below the partition plate;

[0029] The impeller is provided with a mounting shaft below it, and the switching turntable is connected to the mounting shaft.

[0030] In one of the optional technical solutions, the inner surface of the upper cover sleeve is provided with a ring of sleeve meshing teeth, and the outer periphery of the switching turntable is provided with a ring of turntable meshing teeth;

[0031] The mounting shaft is an eccentric shaft. When the switching turntable is rotating, under the action of the eccentric shaft, some of the turntable meshing teeth of the switching turntable mesh with the sleeve meshing teeth to reduce speed.

[0032] The above technical solution has the following beneficial effects:

[0033] The shower head provided by this utility model includes a water outlet plate, a top cover, and an automatic switching mechanism. The water outlet plate has multiple rings of nozzles arranged radially at intervals. A top cover sleeve is located in the center of the top surface of the top cover, and the top cover also has multiple vertically penetrating water outlet holes located within the top cover sleeve. The bottom surface of the top cover has multiple annular water channels, which are connected to the multiple top cover water outlet holes one-to-one via multiple connecting channels. The bottom surface of the annular water channels is connected to the water outlet plate, and each annular water channel has at least one ring of nozzles.

[0034] The automatic switching mechanism is connected to the top cover sleeve and includes a water inlet connector and a switching disc. The water inlet connector connects to the water inlet pipe, and the switching disc has a water passage hole that connects to different water outlets on the top cover as the disc rotates. The switching disc is mounted in the top cover sleeve and rotates automatically under the action of water flow. When the switching disc rotates, the water passage hole connects to different water outlets on the top cover sequentially, supplying water to the corresponding annular water channels in sequence. This allows the nozzles in the multiple annular water channels to switch water spraying sequentially, ensuring a continuous water flow from the shower head. The alternating spraying of nozzles from different annular rings achieves a massage effect. Attached Figure Description

[0035] The disclosure of this utility model will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0036] Figure 1 A perspective view of a shower head provided in an embodiment of the present utility model from a top view;

[0037] Figure 2 A perspective view of a shower head provided in an embodiment of this utility model from a low angle;

[0038] Figure 3 An exploded view of a shower head provided in an embodiment of this utility model;

[0039] Figure 4 This is a top view of the rubber disc;

[0040] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0041] Figure 6 This is a three-dimensional view of the top cover from a top-down perspective;

[0042] Figure 7 An enlarged schematic diagram of the upper cover with a sleeve portion;

[0043] Figure 8 This is a 3D view of the top cover from an upward perspective;

[0044] Figure 9 for Figure 8 An enlarged schematic diagram of the central region;

[0045] Figure 10 A cross-sectional view of the top cover along an internal waterway;

[0046] Figure 11 for Figure 10 A magnified view of a portion of the image;

[0047] Figure 12A 3D view of the automatic switching mechanism from an upward perspective;

[0048] Figure 13 Exploded view of the automatic switching mechanism;

[0049] Figure 14 A schematic diagram showing a partition in the connecting sleeve;

[0050] Figure 15 A cross-sectional view of the assembled inlet connector, connecting sleeve, and baffle.

[0051] Figure 16 This is a three-dimensional view of the impeller from a top-down perspective.

[0052] Figure 17 This is a three-dimensional view of the impeller from an upward-looking perspective.

[0053] Figure 18 This is a cross-sectional view of the impeller;

[0054] Figure 19 A 3D view of the switching turntable;

[0055] Figure 20 A cross-sectional view of a shower head provided in an embodiment of this utility model;

[0056] Figure 21 for Figure 20 Enlarged layout view. Detailed Implementation

[0057] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0058] like Figure 1-9 , Figure 12 and Figure 20-21 As shown, an embodiment of the present invention provides a shower head, including a water outlet plate 1, an upper cover 2 connected to the water outlet plate 1, and an automatic switching mechanism 3 having a water inlet connector 32 and a switching turntable 33.

[0059] The water outlet plate 1 is provided with multiple rings of nozzles 121 arranged radially at intervals.

[0060] The top surface of the upper cover 2 is provided with an upper cover sleeve 21 and multiple upper cover water outlet holes 23. The multiple upper cover water outlet holes 23 are located in the upper cover sleeve 21 and are arranged at intervals around the center of the upper cover sleeve 21.

[0061] The bottom surface of the top cover 2 is provided with multiple annular water channels 26 in a radial direction. Each annular water channel 26 is connected to a water outlet 23 of the top cover through a connecting water channel 27. Each annular water channel 26 has at least one ring of nozzles 121.

[0062] The automatic switching mechanism 3 is connected to the upper cover sleeve 21. The switching turntable 33 is provided with a water passage hole 332. The switching turntable 33 can be pivotally mounted in the upper cover sleeve 21 and can be automatically rotated by the water flow.

[0063] When the switching turntable 33 is in automatic rotation, the water passage 332 can only connect with one water outlet 23 of the upper cover at a time, and the nozzles 121 in the multiple annular water channels 26 can switch water spraying in sequence.

[0064] The shower head provided by this utility model includes a water outlet plate 1, an upper cover 2, and an automatic switching mechanism 3, etc.

[0065] Multiple rings of nozzles 121 are arranged radially at intervals on the water outlet plate 1. Specifically, the water outlet plate 1 includes a water outlet cover 11 and a rubber disc 12. The water outlet cover 11 includes a circular panel 111 and an annular sidewall 112 surrounding the circular panel 111. Multiple rings of panel through holes are arranged radially at intervals on the circular panel 111 for the nozzles 121 to pass through downwards. The rubber disc 12 is mounted on the top of the circular panel 111, and the annular sidewall 112 surrounds the rubber disc 12. Multiple rings of nozzles 121 are arranged radially at intervals on the rubber disc 12, for example, nozzles 121 in the inner ring 12a, nozzles 121 in the middle ring 12b, and nozzles 121 in the outer ring 12c. Each ring of nozzles 121 includes multiple nozzles 121 arranged at intervals along the circumferential direction. The nozzles 121 protrude toward the bottom surface of the rubber disc 12. After the rubber disc 12 is mounted onto the circular panel 111, each nozzle 121 passes downward through a panel through-hole accordingly for spraying water downward.

[0066] The top cover 2 is installed on top of the water outlet tray 1, located within the annular sidewall 112 and pressing against the rubber tray 12. The top cover 2 can be connected to the circular panel 111 by multiple screws. The top cover 2 is connected to the circular panel 111 by screws around and / or in the center. If necessary, ear plates can be provided at the installation position of the top cover 2, and internal threaded sleeves can be provided on the circular panel 111. Screws pass through the ear plates and connect with the internal threaded sleeves.

[0067] A cover sleeve 21 is provided in the middle of the top surface of the cover 2. The cover 2 is circular, and the cover sleeve 21 is located in the middle of the cover 2 and is arranged concentrically with the cover 2. Preferably, the cover sleeve 21 is integrally formed with the cover 2. The outer circumferential surface of the cover sleeve 21 may be provided with external threads for connection with the internal threads of the automatic switching mechanism 3.

[0068] The upper cover 2 has an upwardly extending upper cover pivot 22 located in the middle position, which is located in the upper cover sleeve 21 and is used to assemble with the switching turntable 33 of the automatic switching mechanism 3.

[0069] The upper cover 2 is also provided with a plurality of upper cover water outlet holes 23 in the middle position. The plurality of upper cover water outlet holes 23 are located in the upper cover sleeve 21 and are arranged at intervals around the upper cover pivot shaft 22 or the central axis of the upper cover sleeve 21. The upper cover water outlet holes 23 penetrate the upper and lower surfaces of the upper cover 2 and are used for downward drainage. Preferably, the plurality of upper cover water outlet holes 23 are evenly distributed around the upper cover pivot shaft 22.

[0070] The bottom surface of the upper cover 2 is provided with multiple annular water channels 26, which are arranged radially from the center outwards at intervals. Each annular water channel 26 is formed by two raised ribs formed on the bottom surface of the upper cover 2. When the upper cover 2 is pressed onto the rubber disc 12, the raised ribs are pressed against the top surface of the rubber disc 12, so that each or each annular water channel 26 has at least one ring of nozzles 121, or in other words, the upper opening of at least one ring of nozzles 121 is located in the annular water channel 26.

[0071] Each annular waterway 26 is connected to a top cover outlet 23 via a connecting waterway 27. The number of annular waterways 26, connecting waterways 27, and top cover outlets 23 are equal, and multiple annular waterways 26 are connected to multiple top cover outlets 23 one-to-one via multiple connecting waterways 27.

[0072] The connecting waterway 27 can be located on the bottom surface of the upper cover 2 or within the upper cover 2. The end of the connecting waterway 27 facing the water outlet 23 of the upper cover is called the proximal end, and the end facing the edge of the upper cover 2 is called the distal end. The proximal end of the connecting waterway 27 is connected to the water outlet 23 of the upper cover, and the distal end of the connecting waterway 27 is connected to an annular waterway 26.

[0073] The automatic switching mechanism 3 is connected to the upper cover sleeve 21. The automatic switching mechanism 3 includes a water inlet connector 32 and a switching turntable 33. The water inlet connector 32 is located on the upper part of the main structure of the automatic switching mechanism 3 and is used to connect to the water inlet pipe. The main structure of the automatic switching mechanism 3 can be an internally threaded sleeve, connecting sleeve, etc., to connect with the upper cover sleeve 21. The switching turntable 33 is located within the main structure of the automatic switching mechanism 3. After assembling the main structure of the automatic switching mechanism 3 with the upper cover sleeve 21, the switching turntable 33 is located within the upper cover sleeve 21. The center of the switching turntable 33 has a turntable through hole 331, and a water passage hole 332 is also provided on the switching turntable 33, which is offset to one side of the turntable through hole 331. The switching turntable 33 is mounted on the upper cover pivot shaft 22, which is assembled with the turntable through hole 331, allowing the switching turntable 33 to rotate within the upper cover sleeve 21. Water entering through the inlet connector 32 flows down the flow channel of the main structure and impacts the switching turntable 33, which rotates automatically under the action of the water flow. Specifically, fins or blades can be provided on the top surface of the switching turntable 33 to withstand the force of the water and cause the switching turntable 33 to rotate.

[0074] The water passage 332 is used to sequentially connect with different top cover water outlets 23 as the switching turntable 33 rotates, thereby sequentially injecting water into each corresponding annular water channel 26. When the water passage 332 is connected with one top cover water outlet 23, the main body of the switching turntable 33 covers the other two top cover water outlets 23. The water passage 332 connects with only one top cover water outlet 23 at a time, injecting water into only one annular water channel 26.

[0075] Preferably, the water passage 332 is waist-shaped or arc-shaped, and the central angle of the water passage 332 is equal to the central angle between two adjacent top cover water outlets 23, so as to switch between different top cover water outlets 23. The waist-shaped hole is divided into an upstream end and a downstream end along the rotation direction of the switching turntable 33. When the upstream end of the water passage 332 leaves the previous top cover water outlet 23, the downstream end of the water passage 332 is connected to the next top cover water outlet 23.

[0076] When the user uses the shower head, water enters through the inlet connector 32 and drives the switching disc 33 to rotate. As the switching disc 33 rotates, the water passage 332 and different water outlets 23 on the top cover are connected in sequence, supplying water to the corresponding annular water channels 26 in sequence. This allows the nozzles 121 in the multiple annular water channels 26 to switch water spraying in sequence, so that the shower head keeps spraying water and the nozzles 121 in different rings spray water alternately, achieving a massage effect.

[0077] For example, the water spray sequence can be continuously completed in several cycles, either by transitioning from the inner ring 12a to the outer ring 12c or by transitioning from the outer ring 12c to the inner ring 12a. The nozzles 121 in different areas of the water outlet plate 1 spray water alternately, thereby achieving a massage effect.

[0078] In one embodiment, such as Figure 4 and Figure 8-9 As shown, a circular water channel 25 is provided in the central area of ​​the bottom surface of the top cover 2, and multiple water outlet holes 23 of the top cover are located in the circular water channel 25. The circular water channel 25 has at least one ring of nozzles 121.

[0079] The connecting waterway 27 extends radially along the top cover 2. The proximal end of each connecting waterway 27 is located in a circular waterway 25 and is connected to a water outlet 23 of the top cover. The distal end of each connecting waterway 27 is connected to an annular waterway 26.

[0080] One of the connecting waterways 27 has a waterway opening 271 at its near end, which is connected to a circular waterway 25. The nozzle 121 in the circular waterway 25 sprays water simultaneously with the nozzle 121 in one of the annular waterways 26.

[0081] In this embodiment, a circular water channel 25 is provided in the central area of ​​the bottom surface of the upper cover 2 so that water can also be discharged from the central area 12d of the water discharge tray 1.

[0082] Specifically, the circular water channel 25 is formed by the inner wall of the innermost annular water channel 26, and the lower openings of the multiple top cover water outlet holes 23 are all located within the circular water channel 25. After the top cover 2 is press-fitted, the wall of the circular water channel 25 is pressed against the top surface of the rubber disc 12, and the circular water channel 25 has at least one ring of nozzles 121, or in other words, the upper openings of at least one ring of nozzles 121 are located within the circular water channel 25. For example... Figure 4 The nozzle 121 in the central region 12d is matched with the circular waterway 25, and the upper opening of the nozzle 121 in the central region 12d is located in the circular waterway 25.

[0083] A waterway 27 has a waterway opening 271 at its near end, which is connected to a circular waterway 25. When water is injected into the waterway 27, water will also be injected into both the annular waterway 26 and the circular waterway 25 connected to the waterway 27. Correspondingly, the nozzles 121 located in the annular waterway 26 and the circular waterway 25 will spray water simultaneously to achieve different water output effects.

[0084] The annular waterway 26 can be the innermost annular waterway 26 adjacent to the circular waterway 25, the outermost annular waterway 26, or the middle annular waterway 26.

[0085] In one embodiment, such as Figure 8-9 As shown, the nozzle 121 in the second annular waterway 26 along the direction from the inside to the outside of the multiple annular waterways 26 sprays water simultaneously with the nozzle 121 in the circular waterway 25, and water is discharged from the surrounding area and the middle area of ​​the water outlet plate 1 at the same time.

[0086] In one embodiment, such as Figure 8-11 As shown, at least one annular waterway 26 is divided into two branch waterways 261 by at least one connecting waterway 27.

[0087] The upper cover 2 is provided with an internal water channel 28. One end opening 281 of the internal water channel 28 is located in a branch water channel 261, and the other end opening 281 of the internal water channel 28 is located in another branch water channel 261.

[0088] In this embodiment, the connecting waterway 27 is formed by a rib on the bottom surface of the upper cover 2, which gradually extends from the middle of the upper cover 2 to the periphery of the upper cover 2, thereby separating the annular waterway 26 and forming two branch waterways 261. To prevent one branch waterway 261 from being able to be filled with water while the other branch waterway 261 is not, this embodiment uses an internal waterway 28 to connect the two branch waterways 261. The internal waterway 28 is located in the upper cover 2 and has openings 281 at both ends. One opening 281 is in one branch waterway 261, and the other opening 281 is in the other branch waterway 261. When water is filled into one branch waterway 261, the water will flow into the other branch waterway 261 through the internal waterway 28, ensuring that the entire annular waterway 26 can be filled with water and that all the corresponding nozzles 121 can spray water.

[0089] In one embodiment, such as Figure 1 , Figure 6 and Figure 10-11 As shown, the top surface of the upper cover 2 is provided with an upper cover protrusion 24, which spans across the connecting waterway 27 along the width direction of the connecting waterway 27. The internal waterway 28 is provided in the upper cover protrusion 24.

[0090] In this embodiment, to avoid increasing the thickness of the upper cover 2 due to the inclusion of the built-in water channel 28, an upper cover protrusion 24 is provided on the top surface of the upper cover 2 at a position corresponding to the connecting water channel 27. The upper cover protrusion 24 extends along the width direction of the connecting water channel 27 below, and the length of the upper cover protrusion 24 is greater than the width of the connecting water channel 27. The built-in water channel 28 is disposed in the upper cover protrusion 24, and the opening 281 of the built-in water channel 28 is disposed on the bottom surface of the upper cover 2.

[0091] In one embodiment, such as Figure 9 As shown, the two end openings 281 of the built-in waterway 28 are respectively arranged adjacent to the two sides of the connecting waterway 27 along the width direction to reduce the length of the built-in waterway 28.

[0092] In one embodiment, such as Figure 7-9 As shown, the top surface of the cover 2 has three water outlet holes 23.

[0093] Multiple annular waterways 26 are divided into an inner annular waterway 26a, a middle annular waterway 26b and an outer annular waterway 26c in a radial direction from the inside to the outside. The inner annular waterway 26a surrounds the outer periphery of the circular waterway 25.

[0094] The multiple connecting waterways 27 are correspondingly divided into a first connecting waterway 27a that connects to the inner annular waterway 26a, a second connecting waterway 27b that connects to the middle annular waterway 26b, and a third connecting waterway 27c that connects to the outer annular waterway 26c.

[0095] Waterway opening 271 is located near the end of the second connecting waterway 27b.

[0096] In this embodiment, three water outlet holes 23 are provided on the top surface of the upper cover 2, and the three water outlet holes 23 are evenly distributed along the circumferential direction.

[0097] Three annular water channels 26 are provided on the bottom surface of the upper cover 2. In the radial direction from the inside to the outside, the three annular water channels 26 are divided into an inner annular water channel 26a, a middle annular water channel 26b and an outer annular water channel 26c. The inner annular water channel 26a surrounds the outer periphery of the circular water channel 25.

[0098] Correspondingly, three connecting waterways 27 are provided, namely, a first connecting waterway 27a, a second connecting waterway 27b, and a third connecting waterway 27c. The distal end of the first connecting waterway 27a is connected to the inner annular waterway 26a, and the proximal end of the first connecting waterway 27a is connected to the first upper cover water outlet 23. The distal end of the second connecting waterway 27b is connected to the middle annular waterway 26b, and the proximal end of the second connecting waterway 27b is connected to the second upper cover water outlet 23. The waterway opening 271 is located at the proximal end of the second connecting waterway 27b.

[0099] The far end of the third connecting waterway 27c is connected to the outer annular waterway 26c, and the near end of the third connecting waterway 27c is connected to the third upper cover water outlet 23.

[0100] When the switching turntable 33 rotates and the water passage 332 connects with the first upper cover water outlet 23, water is injected into the inner annular water passage 26a through the first connecting water passage 27a, and water is sprayed from the nozzle 121 of the inner ring 12a.

[0101] When the switching turntable 33 rotates and the water passage 332 connects with the third upper cover water outlet 23, water is injected into the outer annular water passage 26c through the third connecting water passage 27c, and water is sprayed by the nozzle 121 of the outer ring 12c.

[0102] In one embodiment, such as Figure 7-8 As shown, the inner waterway 26a is divided into two branch waterways 261 by the second connecting waterway 27b and the third connecting waterway 27c.

[0103] The upper cover 2 is provided with built-in water channels 28 at the positions corresponding to the second connecting water channel 27b and the third connecting water channel 27c. One end opening 281 of the built-in water channel 28 is located in a branch water channel 261, and the other end opening 281 of the built-in water channel 28 is located in another branch water channel 261.

[0104] In this embodiment, since the second connecting waterway 27b and the third connecting waterway 27c are relatively long, they respectively divide the inner annular waterway 26a and form two branch waterways 261.

[0105] The upper cover 2 has two built-in water channels 28, which are located above the second connecting water channel 27b and the third connecting water channel 27c, and extend along the width direction of the second connecting water channel 27b and the third connecting water channel 27c, respectively. The two ends opening 281 of each built-in water channel 28 are respectively arranged in two branch water channels 261, thereby connecting the two branch water channels 261.

[0106] Preferably, an upper cover protrusion 24 is provided on the top surface of the upper cover 2 above the second connecting water channel 27b and the third connecting water channel 27c, respectively. One upper cover protrusion 24 spans across the second connecting water channel 27b along the width direction, and the other upper cover protrusion 24 spans across the third connecting water channel 27c along the width direction. An internal water channel 28 is provided in each of the two upper cover protrusions 24.

[0107] In one embodiment, such as Figure 12-21 As shown, the automatic switching mechanism 3 includes a connecting sleeve 31 and an impeller 34, and the water inlet connector 32 is located on the top plate of the connecting sleeve 31.

[0108] The connecting sleeve 31 has a partition 311, and a water inlet cavity 312 is formed between the partition 311 and the top plate. Multiple oblique water outlets 3112 are evenly distributed on the partition 311 along the circumferential direction.

[0109] The connecting sleeve 31 is sleeved with the upper cover sleeve 21, and the impeller 34 is pivotally mounted in the upper cover sleeve 21 and located below the partition 311.

[0110] An installation shaft 343 is provided below the impeller 34, and the switching turntable 33 is connected to the installation shaft 343.

[0111] In this embodiment, the automatic switching mechanism 3 includes a connecting sleeve 31 and an impeller 34. The connecting sleeve 31 is the main structure of the automatic switching mechanism 3 and has internal threads to facilitate connection with the upper cover sleeve 21. The water inlet connector 32 is located on the top plate of the connecting sleeve 31.

[0112] The connecting sleeve 31 has a partition 311, and a water inlet cavity 312 is formed between the partition 311 and the top plate. The water inlet connector 32 communicates with the water inlet cavity 312. Multiple oblique water outlets 3112 are evenly distributed along the circumference of the partition 311 for downward, inclined flushing. Each oblique water outlet 3112 is initially an arc-shaped hole with a sloped bottom surface to guide the water flow downwards at an angle. Preferably, there are four oblique water outlets 3112.

[0113] Below the partition plate 311, there is an assembly shaft 3111, which is concentrically arranged with the connecting sleeve 31. Multiple oblique water outlets 3112 are evenly distributed around the assembly shaft 3111.

[0114] The impeller 34 is pivotally mounted to the assembly shaft 3111. The impeller 34 includes a cylindrical portion 341 and multiple blades 342 disposed around the cylindrical portion 341. An upper groove 3411 is formed at the upper end of the cylindrical portion 341, and the upper groove 3411 is concentrically arranged with the assembly shaft 3111, which is inserted into the upper groove 3411. A mounting shaft 343 is provided at the upper part of the cylindrical portion 341, and the mounting shaft 343 has a mounting hole 3431 that communicates with and is coaxially arranged with the upper groove 3411, for fitting onto the upper cover pivot shaft 22. The switching turntable 33 is connected to the mounting shaft 343, and the mounting shaft 343 passes through the turntable through hole 331.

[0115] When water enters the inlet chamber 312 from the inlet connector 32, it flows down from the inclined outlet 3112 and impacts the blades 342. The impeller 34 rotates under the action of the water and drives the switching turntable 33 to rotate, so as to switch the water output.

[0116] In one embodiment, such as Figure 7 , Figure 12-13 and Figure 19-21 As shown, the inner surface of the upper cover sleeve 21 is provided with a ring of sleeve meshing teeth 211, and the outer periphery of the switching turntable 33 is provided with a ring of turntable meshing teeth 333.

[0117] The mounting shaft 343 is an eccentric shaft. When the switching turntable 33 is rotating, under the action of the eccentric shaft, part of the turntable meshing teeth 333 of the switching turntable 33 meshes with the sleeve meshing teeth 211 to reduce speed.

[0118] In this embodiment, the rotational speed reduction of the switching turntable 33 is achieved by meshing teeth.

[0119] Specifically, the inner surface of the upper cover sleeve 21 is provided with a ring of sleeve meshing teeth 211, and the outer periphery of the switching turntable 33 is provided with a ring of turntable meshing teeth 333. The radius of the switching turntable 33 is smaller than the radius of the upper cover sleeve 21, and there is a certain gap between the edge of the switching turntable 33 and the inner surface of the upper cover sleeve 21. The number of teeth of the turntable meshing teeth 333 is less than the number of teeth of the sleeve meshing teeth 211.

[0120] Mounting shaft 343 is an eccentric shaft. For example... Figure 18 As shown, the axis of the mounting hole 3431 is AA, and the axis of the mounting shaft 343 is BB. The axis BB does not coincide with the axis AA; it is offset to one side of the axis AA. This results in one side of the mounting hole 3431 having a thicker wall and the other side having a thinner wall. The diameter of the turntable through hole 331 is larger than the diameter of the mounting shaft 343. Therefore, when the eccentric shaft rotates with the impeller 34, the thicker portion of the hole wall acts on the switching turntable 33, causing the turntable meshing teeth 333 on the thicker side of the hole wall to mesh with the sleeve meshing teeth 211, thus achieving deceleration. When the switching turntable 33 rotates, the turntable meshing teeth 333 on the thinner side of the hole wall disengage from the sleeve meshing teeth 211.

[0121] In one embodiment, such as Figure 5 As shown, a water-blocking block 122 is provided on the top surface of the rubber disc 12, and the water-blocking block 122 is located near the upper opening of the nozzle 121. The "near" side refers to the side close to the center of the rubber disc 12. The side of the water-blocking block 122 facing the nozzle 121 is arc-shaped to match the contour of the upper opening of the nozzle 121.

[0122] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0123] The above are merely the principles and preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of this utility model, and these modifications should also be considered within the scope of protection of this utility model.

Claims

1. A shower head, characterized in that, It includes a water outlet tray, an upper cover connected to the water outlet tray, and an automatic switching mechanism with a water inlet connector and a switching turntable; The water outlet plate is provided with multiple rings of nozzles arranged radially at intervals. The top surface of the upper cover is provided with an upper cover sleeve and multiple upper cover water outlet holes. The multiple upper cover water outlet holes are located in the upper cover sleeve and are arranged at intervals around the center of the upper cover sleeve. The bottom surface of the top cover is provided with multiple annular water channels in a radial direction. Each annular water channel is connected to a water outlet of the top cover through a connecting water channel. Each annular water channel has at least one ring of nozzles. The automatic switching mechanism is connected to the upper cover sleeve. The switching turntable is provided with a water passage hole. The switching turntable is pivotally mounted in the upper cover sleeve and can be automatically rotated by the water flow. When the switching turntable is in automatic rotation, the water passage can only connect with one of the water outlets of the upper cover at a time, and the nozzles in the multiple annular water channels can switch water spraying sequentially.

2. The shower head according to claim 1, characterized in that, A circular water channel is provided in the central area of ​​the bottom surface of the top cover, and multiple water outlets of the top cover are located in the circular water channel. The circular water channel has at least one ring of nozzles. The connecting waterway extends radially along the top cover, with the proximal end of each connecting waterway located in the circular waterway and connected to a water outlet of the top cover, and the distal end of each connecting waterway connected to an annular waterway. One of the connecting waterways has a waterway opening at its near end, which is connected to the circular waterway. The nozzle in the circular waterway sprays water simultaneously with the nozzle in one of the annular waterways.

3. The shower head according to claim 2, characterized in that, The nozzle in the second annular waterway along the direction from the inside out of the multiple annular waterways sprays water simultaneously with the nozzle in the circular waterway.

4. The shower head according to claim 1, characterized in that, At least one of the annular waterways is divided into two branch waterways by at least one of the connecting waterways; The upper cover is provided with an internal water channel, one end of which is located in one of the branch water channels, and the other end of which is located in another of the branch water channels.

5. The shower head according to claim 4, characterized in that, The top surface of the upper cover is provided with an upper cover protrusion, which spans across the connecting waterway along the width direction of the connecting waterway; The built-in water channel is located in the protrusion of the upper cover.

6. The shower head according to claim 4, characterized in that, The two openings of the built-in waterway are respectively arranged along the two sides of the connecting waterway in the width direction.

7. The shower head according to claim 2, characterized in that, The top surface of the cover is provided with three water outlet holes; The multiple annular waterways are divided into an inner annular waterway, a middle annular waterway, and an outer annular waterway in a radial direction from the inside to the outside, with the inner annular waterway surrounding the outer periphery of the circular waterway. The multiple connecting waterways are correspondingly divided into a first connecting waterway that connects to the inner annular waterway, a second connecting waterway that connects to the middle annular waterway, and a third connecting waterway that connects to the outer annular waterway. The waterway opening is located near the end of the second connecting waterway.

8. The shower head according to claim 7, characterized in that, The inner annular waterway is divided into two branch waterways by the second connecting waterway and the third connecting waterway; The upper cover is provided with built-in water channels corresponding to the positions of the second connecting water channel and the third connecting water channel. One end of the built-in water channel is located in one section of the branch water channel, and the other end of the built-in water channel is located in another section of the branch water channel.

9. The shower head according to any one of claims 1-8, characterized in that, The automatic switching mechanism includes a connecting sleeve and an impeller, and the water inlet connector is located on the top plate of the connecting sleeve; The connecting sleeve has a partition, and a water inlet cavity is formed between the partition and the top plate. Multiple oblique water outlets are evenly distributed along the circumferential direction on the partition. The connecting sleeve is sleeved with the upper cover sleeve, and the impeller is pivotally mounted in the upper cover sleeve and located below the partition plate; The impeller is provided with a mounting shaft below it, and the switching turntable is connected to the mounting shaft.

10. The shower head according to claim 9, characterized in that, The inner surface of the upper cover sleeve is provided with a ring of sleeve meshing teeth, and the outer periphery of the switching turntable is provided with a ring of turntable meshing teeth. The mounting shaft is an eccentric shaft. When the switching turntable is rotating, under the action of the eccentric shaft, some of the turntable meshing teeth of the switching turntable mesh with the sleeve meshing teeth to reduce speed.

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