Shower capable of changing positions quickly

Abstract

The invention relates to the technical field of bathroom equipment, in particular to a shower capable of quickly changing positions, which comprises a vertical shower rod, a pluggable spray head, a plurality of fixing seats which are axially distributed and are communicated in series, a middle pipe and a switching valve assembly, each fixed seat is provided with an insertion port with a plug, the plug is pushed to conduct a water path when the nozzle is inserted, and the plug is automatically sealed when the nozzle is pulled out; the nozzle is provided with double water inlets and inner and outer ring water outlet holes, double-ring water outlet is achieved only at the highest fixing seat through an ejector rod opening one-way valve, and only inner ring water outlet is achieved at the low position. The height of the spray head can be rapidly switched, the water outlet mode can be automatically matched, hair wetting is avoided, water is saved, and the device is free of leakage in insertion and extraction, reliable in locking and smooth in appearance.

Description

Technical Field

[0001] This invention relates to a shower that can be quickly repositioned. Background Technology

[0002] In modern bathroom products, the shower unit, as a core device for daily bathing, is receiving increasing attention from users for its user experience and functionality. Currently, most mainstream shower systems on the market adopt a fixed overhead showerhead structure. While this design provides a large water coverage area, it has significant limitations in actual use. Firstly, the overhead showerhead is usually installed high up, and the water flow covers the entire body from top to bottom, inevitably wetting the user's hair. This results in a poor user experience for those who only need to rinse specific areas or do not want to wet their hair. Secondly, this type of overhead showerhead has a large water volume and low water efficiency, making it difficult to meet users' actual needs for water-saving products in the current context of advocating energy conservation, emission reduction, and sustainable development. Furthermore, the height of traditional showerheads is mostly fixed and non-adjustable, making it impossible to flexibly adjust the water outlet position according to users of different heights or different bathing scenarios, limiting the product's applicability and comfort.

[0003] While some products attempt to achieve height adjustment via handheld nozzles or sliding supports, these solutions are often complex in structure and inconvenient to operate. They are also prone to leaks, poor sealing, or unstable connections when switching positions, and require at least two nozzles for water output. Especially during frequent plugging and unplugging, the lack of reliable automatic water shut-off and sealing mechanisms not only affects safety but can also lead to water waste. Furthermore, existing nozzles generally use a single water output mode, making it difficult to simultaneously meet the different needs of rinsing large areas at heights and precise water conservation at lower levels. Summary of the Invention

[0004] This invention addresses the technical problems of existing shower devices, such as fixed shower head height, low usage frequency of overhead showers, high water consumption, and easy wetting of hair, by providing a shower head with quick-change positioning. This shower head features multiple axially distributed mounting brackets on a vertical shower rod, combined with a pluggable shower head structure, allowing users to easily install or switch shower heads at different heights according to their needs. Simultaneously, it automatically matches different water flow modes at different installation heights, achieving functional differentiation between large-area coverage rinsing at higher locations and water-saving cleaning at lower locations, effectively preventing hair from getting wet during use and improving water efficiency.

[0005] The present invention adopts the following solution: A quick-positioning shower includes a shower rod and a shower head; it also includes: at least two mounting bases connected in series, the mounting bases being positioned at different heights on the shower rod, the mounting bases being able to communicate with a water source; each mounting base is configured with a connector, the shower head being configured to be inserted into the connector of any mounting base to change the water spray at different heights on the shower rod; a plug adapted to the number of mounting bases, the plug being configured within the connector of the mounting base; when the shower head is not inserted into the connector, the plug is configured to block the connector to prevent water from flowing out of the connector; when the shower head is inserted into the connector, and: the water inlet of the shower head is connected to a water source, the plug is configured to detach from the connector to allow water to spray out through the shower head.

[0006] In this embodiment of the invention, the plug is provided with a first sealing ring on its outer periphery that can seal against the inner peripheral wall of the connector, and the nozzle is provided with a second sealing ring that can seal against the inner peripheral wall of the connector. When the nozzle is not inserted into the connector, the first sealing ring seals against the connector. When the nozzle is inserted into the connector but not connected to a water source, both the first and second sealing rings seal against the connector. When the nozzle is inserted into the connector and connected to a water source, the second sealing ring seals against the connector, and the first sealing ring disengages from the connector.

[0007] In this embodiment of the invention, the plug is configured to move within the connector to achieve the connection and disconnection between the connector and the water source; a return spring is provided between the plug and the fixed base, the return spring being configured to drive the plug to move into the connector, and when the nozzle is inserted into the connector, the nozzle can push the plug to move away from the connector.

[0008] In this embodiment of the invention, a slot is also included, and a snap-fit ​​block is provided on the nozzle. The snap-fit ​​block is configured to snap into the slot so as to fix the nozzle to the mounting base.

[0009] In this embodiment of the invention, the nozzle is equipped with a button, the snap-fit ​​block is disposed on the button, and the button is equipped with an elastic element. When the snap-fit ​​block is snapped into the slot, the elastic element is configured to drive the snap-fit ​​block to remain in the slot. When the button is pressed, the snap-fit ​​block can disengage from the slot, so as to remove the nozzle from the insertion interface of the fixing base.

[0010] In this embodiment of the invention, the plug is provided with a flange at its rear end outside the insertion interface, and the fixing seat is provided with a stepped surface at the insertion interface, and the flange can abut against the stepped surface.

[0011] In this embodiment of the invention, the outer diameter of the plug inserted into the connector is adapted to the inner diameter of the connector, and the shower rod is also provided with a window that can be adapted to the connector; when the shower head is not inserted into the connector, the front end of the plug can be placed inside the window, the front end face of the plug can be flush with the surface of the shower rod around the window, and the flange abuts against the stepped surface; the slot is configured on the rear side of the window, and the slot is configured to be located on the outer periphery of the connector.

[0012] In this embodiment of the invention, the fixed base is provided with a water inlet cavity, which is configured to communicate with the plug interface. The plug is configured to move within the water inlet cavity. When the plug is disengaged from the plug interface, the water in the water inlet cavity can flow to the nozzle through the plug interface. The plug is provided with a guide post, and the water inlet cavity is provided with a guide hole that can be adapted to the guide post. A return spring that can cooperate with the plug is sleeved on the outer periphery of the guide hole.

[0013] In this embodiment of the invention, the rear end of the nozzle insertion interface is provided with a first water inlet and a second water inlet, and the front end of the nozzle is provided with an inner ring water outlet and an outer ring water outlet. The first water inlet can communicate with the inner ring water outlet, and the second water inlet can communicate with the outer ring water outlet. When the nozzle is inserted into the insertion interface, the water inlet cavity can remain connected to the first water inlet.

[0014] In this embodiment of the invention, a push rod is provided at the front end of the plug located in the uppermost fixing seat of the shower rod, and a one-way valve is provided at the second water inlet. When the nozzle is inserted into the uppermost fixing seat, the push rod can drive the one-way valve to open, so that the water in the water inlet chamber can flow through the second water inlet to the outer ring water outlet for water discharge, and the water in the water inlet chamber can flow through the first water inlet to the inner ring water outlet for water discharge at the same time.

[0015] In this embodiment of the invention, a switching valve assembly is also included. The switching valve assembly is configured to be connected to a water source. The fixed seat located at the bottom of the shower rod is connected to a water outlet end of the switching valve assembly. Adjacent fixed seats are connected by an intermediate pipe so that the water inlet chambers of the fixed seats are connected in series.

[0016] This invention provides a quick-change shower head with the following advantages: 1. The shower head can be quickly plugged and unplugged between multiple preset height mounting bases without tools, making operation simple and meeting users' height adjustment needs in different scenarios; 2. An automatic water-stop structure using a plug and a return spring is employed, immediately sealing the insertion interface when the shower head is pulled out and automatically opening the water path when it is inserted, eliminating the risk of leakage when not in use; 3. Through the sequential coordination of the first and second sealing rings, a double-sealing relay mechanism is formed during the insertion and removal transition phase, ensuring no dripping or seepage during the entire switching process; 4. Automatic switching between single-ring and double-ring output based on the installation height. Water Mode: When used with the highest fixed position, the top rod opens the one-way valve, achieving simultaneous water output from the inner and outer rings, covering a large area, suitable for full-body rinsing; when used with the lower fixed position, only the inner ring outputs water, with a concentrated water flow, suitable for local cleaning or water-saving mode, in line with the concept of energy and water conservation; achieving different water spray areas at different heights of a single shower head; 5. The mechanical locking structure of the snap-fit ​​block and slot can reliably fix the shower head under water pressure impact, preventing the shower head from coming off due to backflow force, improving safety; 6. When the shower head is not installed, the front end of the plug is embedded in the shower rod window and flush with the outer surface, with a simple and integrated overall appearance, without protruding parts affecting aesthetics or causing bumps. Attached Figure Description

[0017] To more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an exploded view of an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the nozzle not being inserted into the connector in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the nozzle just being inserted into the connector in an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the nozzle being fully inserted into the connector in an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the water path when the nozzle is inserted into the connector in an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the water path when the nozzle is inserted into the uppermost insertion interface in another embodiment of the present invention.

[0024] 1. Shower rod; 2. Spray head; 3. Mounting base; 4. Plug; 5. Plug; 6. First sealing ring; 7. Second sealing ring; 8. Water inlet chamber; 9. Return spring; 10. Guide post; 11. Guide hole; 12. Flange; 13. Stepped surface; 14. Window; 15. Slot; 16. Snap-fit ​​block; 17. Button; 18. Elastic element; 19. First water inlet; 20. Second water inlet; 21. Inner ring water outlet; 22. Outer ring water outlet; 23. One-way valve; 24. Top rod; 25. Intermediate pipe; 26. Switching valve assembly. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] Referring to the accompanying drawings, the present invention provides a shower unit with quick-change positioning. Its overall structure includes a vertically arranged shower rod 1, a detachable spray head 2, at least two fixed seats 3 vertically spaced and connected in series along the shower rod 1, an intermediate pipe 25 connecting adjacent fixed seats 3, and a switching valve assembly 26 connected to a water source. The lowest fixed seat 3 is connected to a water outlet of the switching valve assembly 26 via a pipe (or directly inserted together). Each fixed seat 3 has interconnected water inlet chambers 8. Water flows sequentially through the switching valve assembly 26, the lowest fixed seat 3, the intermediate pipe 25, and the water inlet chambers 8 of the upper fixed seats 3, forming a series path, thereby enabling water supply to multiple height positions.

[0027] The mounting base is configured to be fixed inside the shower rod (using screws). Each mounting base 3 has a connector 4 facing the user, which extends into the water inlet chamber 8 for the insertion of the shower head 2 to establish a water connection. The connector 4 contains an axially movable plug 5. Under normal conditions, the plug 5 seals the connector 4 under the action of a return spring 9, preventing water from leaking out of the water inlet chamber 8 through the connector 4. When the shower head 2 is inserted into the connector 4, its rear end pushes the plug 5 into the water inlet chamber 8, disengaging the plug 5 from its sealed position and thus opening the water passage between the water inlet chamber 8 and the shower head 2. To ensure sealing performance, a first sealing ring 6 is fitted around the outer periphery of the plug 5, and a second sealing ring 7 is fitted around the outer periphery of the insertion end of the shower head 2. When the nozzle 2 is not inserted, the first sealing ring 6 fits tightly against the inner wall of the insertion port 4 to form a seal and block the water flow. During the insertion of the nozzle 2, before the plug 5 is completely removed from the sealing position, the second sealing ring 7 begins to contact the inner wall of the insertion port 4 and form a seal. Thus, the second sealing ring 7 continues the sealing function before the first sealing ring 6 is released, ensuring no leakage during the insertion and removal process. When the nozzle 2 is fully inserted and connected to the water inlet chamber 8, the second sealing ring 7 maintains a sealing fit with the inner wall of the insertion port 4, while the first sealing ring 6 moves away from the sealing position as the plug 5 moves backward.

[0028] The plug 5 has a guide post 10 at its rear end, and a corresponding guide hole 11 is provided in the water inlet chamber 8. A return spring 9 is sleeved on the outer periphery of the guide post 10, with one end abutting against the rear end face of the plug 5 and the other end abutting against the inner wall of the fixing seat 3. This provides elastic force to reset the plug 5 and seal the insertion interface 4, thus ensuring the stability of the axial movement of the plug after it is removed from the insertion interface. The guide post can be continuously engaged with the guide hole, or it can be inserted into the guide hole before the plug is removed from the insertion interface. In addition, the plug 5 has a flange 12 at its rear end outside the insertion interface 4, and the fixing seat 3 has a stepped surface 13 inside the insertion interface 4. The flange 12 abuts against the stepped surface 13 to limit the maximum extension position of the plug 5 and prevent the plug 5 from completely dislodging from the insertion interface 4 under the action of the return spring 9. The shower rod 1 has a window 14 at the corresponding position of the plug interface 4. The outer diameter of the front end of the plug 5 is adapted to the inner diameter of the plug interface 4. When the shower head 2 is not installed, the front end of the plug 5 is embedded in the window 14, and its end face is flush with the outer surface of the shower rod 1, maintaining a flat overall appearance.

[0029] To prevent the shower head 2 from accidentally dislodging under water pressure, a locking mechanism is provided on the shower head 2. Specifically, this includes a button 17 on the shower head 2 housing, configured to be pressed towards the centerline of the shower head; a locking block 16 on the button 17 (whose outer peripheral wall is also equipped with a guide slope to facilitate direct insertion of the shower head into the connector); and a locking groove 15 on the outer periphery of the rear side of the shower rod 1 window 14. The button 17 is mounted on the shower head 2 housing via a slide rail structure, with an elastic element 18 between it and the shower head 2 housing. Under normal conditions, the elastic element 18 drives the locking block 16 to pop outward and lock into the locking groove 15. There can be at least one pair of buttons, with an elastic element (such as a spring or sheet) connecting each pair. When the button 17 is pressed, the locking block 16 retracts against the elastic force of the elastic element 18, disengaging from the locking groove 15, allowing the shower head 2 to be pulled out of the connector 4.

[0030] Regarding the specific implementation of the water outlet function, the nozzle 2 has a first water inlet 19 and a second water inlet 20 at the rear end, and an inner ring water outlet 21 and an outer ring water outlet 22 connected to the front end respectively. The inner ring water outlet and the outer ring water outlet can cover the entire water outlet panel at the front end of the nozzle. The first water inlet 19 is always connected to the water inlet cavity 8 of the fixed base 3 and is used to supply water to the inner ring water outlet 21. When the nozzle is not in the position of the uppermost fixed base, the second water inlet does not receive water, that is, the outer ring water outlet does not receive water. In the uppermost fixed seat 3, a push rod 24 is added to the front end of the plug 5, and a one-way valve 23 is provided at the second water inlet 20 of the nozzle 2. When the nozzle 2 is inserted into the uppermost fixed seat 3, the plug 5 is pushed back by the nozzle 2 and moved until the locking block is engaged in the slot. The push rod 24 at its front end extends into the second water inlet 20 of the nozzle 2, opening the one-way valve 23, so that the water inlet chamber 8 is simultaneously connected with the first water inlet 19 and the second water inlet 20, thereby realizing the synchronous water output of the inner ring water outlet 21 and the outer ring water outlet 22, forming a large area of ​​shower coverage. When the nozzle 2 is inserted into other lower fixed seats 3, since the plug 5 of these fixed seats 3 does not have a push rod 24 at its front end, the one-way valve 23 at the second water inlet 20 cannot be opened. Only the first water inlet 19 is connected to the water inlet chamber 8, and only the inner ring water outlet 21 outputs water, forming a concentrated small area of ​​water flow.

[0031] In actual use, the user selects the mounting base 3 at the target height according to their needs; then, the shower head 2 is inserted into the insertion interface 4 of the selected mounting base 3, and the front end of the shower head 2 pushes the plug 5 into the water inlet chamber 8; as the plug 5 moves backward, the first sealing ring 6 gradually detaches from the inner wall of the insertion interface 4, while the second sealing ring 7 enters the insertion interface 4 and forms a seal with the inner wall; when the shower head 2 is fully inserted, the locking block 16 automatically engages with the slot 15 on the shower rod 1 under the action of the elastic element 18, completing the locking; if the uppermost mounting base 3 is inserted... Then, the push rod 24 at the front end of the plug 5 will simultaneously open the one-way valve 23 at the second water inlet 20 of the nozzle 2, realizing dual water inlet and dual water outlet; if other fixed bases 3 are inserted, only the first water inlet 19 will be open, realizing single water outlet; after use, press the button 17 on the nozzle 2 to make the snap block 16 disengage from the slot 15 and pull out the nozzle 2; during the process of pulling out the nozzle 2, the second sealing ring 7 will first disengage from the seal, and then the plug 5 will move forward under the action of the return spring 9, and the first sealing ring 6 will re-fit against the inner wall of the insertion interface 4 to complete the water cut-off seal.

[0032] For example, in a typical home bathing scenario, when a user wishes to shower their entire body, the showerhead 2 can be inserted into the uppermost mounting base 3. At this time, the top rod 24 opens the one-way valve 23, and the inner and outer ring water outlets 21 and 22 simultaneously release water, forming a wide fan-shaped water flow covering the area below the shoulders. The two water streams effectively reduce the water flow speed, preventing direct impact on the head. When the user only needs to wash their waist or use the water-saving mode, the showerhead 2 can be inserted into any of the lower mounting bases 3. In this case, only the inner ring water outlet 21 releases water, concentrating the water flow and effectively reducing water consumption. The entire switching process does not require turning off the water supply or using any tools; height adjustment and water flow mode switching can be completed simply by manually inserting and removing the nozzle. The operation is convenient and responsive.

[0033] In the process of using this invention: S1: The user selects a mounting base of the target height according to usage requirements; S2: The user inserts the nozzle into the selected mounting base's connector, and the rear end of the nozzle pushes the plug into the water inlet chamber; S3: During the rearward movement of the plug, the first sealing ring gradually detaches from the inner wall of the connector, while the second sealing ring enters the connector and forms a seal with the inner wall; S4: When the nozzle is fully inserted, the locking block automatically engages with the slot on the shower rod under the action of the elastic element, completing the locking; S5: If inserted... If it is the top fixed seat, the push rod at the front end of the plug will simultaneously open the one-way valve at the second water inlet of the nozzle, realizing dual water inlet and dual-ring water outlet; if other fixed seats are inserted, only the first water inlet will be open, realizing single-ring water outlet; S6: After use, press the button on the nozzle to make the locking block disengage from the slot and pull out the nozzle; S7: During the nozzle pull-out process, the second sealing ring will disengage first, and then the plug will move forward under the action of the return spring, and the first sealing ring will re-fit against the inner wall of the insertion interface to complete the water cut-off seal.

[0034] In summary, this invention, through the aforementioned structural design, enables the rapid insertion and removal of the nozzle 2 between multiple preset height mounting bases 3 without the need for tools, simplifying operation and meeting users' height adjustment needs in different scenarios. The automatic water flow control structure, employing a plug 5 and a return spring 9, immediately seals the insertion interface 4 when the nozzle 2 is pulled out and automatically opens the water path when inserted, eliminating the risk of leakage when not in use. The sequential coordination of the first sealing ring 6 and the second sealing ring 7 forms a double-sealing relay mechanism during the insertion and removal transition phase, ensuring no dripping or seepage during the entire switching process. It also automatically switches between single-ring and double-ring output based on the installation height. Water mode: When used with the highest fixed seat 3, the top rod 24 opens the one-way valve 23 to achieve synchronous water output from the inner and outer rings, covering a large area and suitable for full-body rinsing; when used with the lower fixed seat 3, only the inner ring outputs water, with concentrated water flow, suitable for local cleaning or water-saving mode, in line with the concept of energy and water conservation; the mechanical locking structure of the snap block 16 and the slot 15 can still reliably fix the nozzle 2 under water pressure impact, preventing the nozzle 2 from falling off due to backflow force, improving the safety of use; when the nozzle 2 is not installed, the front end of the plug 5 is embedded in the window 14 of the shower rod 1 and flush with the outer surface, with a simple and integrated overall appearance, without protruding parts affecting aesthetics or causing bumps.

[0035] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A showerhead with quick-change function, comprising a shower rod and a spray head; characterized in that, Also includes: At least two mounting brackets connected in series are positioned at different heights on the shower pipe and are connected to a water source. Each mounting bracket is equipped with a connector, and the shower head is configured to be inserted into the connector of either mounting bracket to change the water spray pattern at different heights on the shower rod. A plug is provided to match the number of fixed seats, and the plug is disposed in the insertion interface of the fixed seat; when the nozzle is not inserted into the insertion interface, the plug is configured to block the insertion interface so that water cannot flow out from the insertion interface; when the nozzle is inserted into the insertion interface, and the water inlet of the nozzle is connected to the water source, the plug is configured to detach from the insertion interface so that the water source can be sprayed out through the nozzle.

2. The shower unit with quick-change function according to claim 1, characterized in that, The plug is provided with a first sealing ring on its outer periphery that can seal against the inner peripheral wall of the connector, and the nozzle is provided with a second sealing ring that can seal against the inner peripheral wall of the connector. When the nozzle is not inserted into the connector, the first sealing ring seals against the connector. When the nozzle is inserted into the connector but not connected to a water source, both the first and second sealing rings seal against the connector. When the nozzle is inserted into the connector and connected to a water source, the second sealing ring seals against the connector, and the first sealing ring disengages from the connector.

3. A shower unit with quick-change function according to claim 2, characterized in that, The plug is configured to move within the connector to allow the connector to switch on and off with the water source. A return spring is provided between the plug and the fixed base. The return spring is configured to drive the plug to move into the connector. When the nozzle is inserted into the connector, the nozzle can push the plug to move away from the connector.

4. A shower unit with quick-change function according to any one of claims 1-3, characterized in that, It also includes a slot, and the nozzle is equipped with a snap-fit ​​block, which is configured to snap into the slot to fix the nozzle to the mounting base.

5. A shower unit with quick-change function according to claim 4, characterized in that, The nozzle is equipped with a button, the locking block is disposed on the button, and the button is equipped with an elastic element. When the locking block is engaged in the slot, the elastic element is configured to drive the locking block to remain in the slot. When the button is pressed, the locking block can disengage from the slot to remove the nozzle from the insertion interface of the mounting base.

6. A shower unit with quick-change function according to claim 5, characterized in that, The plug is located at the rear end of the insertion interface and has a flange. The fixing seat is located at the insertion interface and has a stepped surface. The flange can abut against the stepped surface.

7. A shower unit with quick-change function according to claim 6, characterized in that, The outer diameter of the plug inserted into the connector is adapted to the inner diameter of the connector. The shower rod is also equipped with a window that can be adapted to the connector. When the shower head is not inserted into the connector, the front end of the plug can be placed inside the window, and the front end face of the plug can be flush with the surface of the shower rod on the periphery of the window. The flange abuts against the stepped surface. The slot is configured on the rear side of the window, and the slot is configured to be located on the outer periphery of the connector.

8. A shower unit with quick-change function according to any one of claims 1-3 and 5-7, characterized in that, The fixed base is provided with a water inlet chamber, which is configured to communicate with the plug interface. The plug is configured to move within the water inlet chamber. When the plug is disengaged from the plug interface, the water in the water inlet chamber can flow to the nozzle through the plug interface. The plug is provided with a guide post, and the water inlet chamber is provided with a guide hole that can be adapted to the guide post. A return spring that can cooperate with the plug is sleeved on the outer periphery of the guide hole.

9. A shower unit with quick-change function according to claim 8, characterized in that, The nozzle insertion interface has a first water inlet and a second water inlet at its rear end, and an inner ring water outlet and an outer ring water outlet at its front end. The first water inlet is connected to the inner ring water outlet, and the second water inlet is connected to the outer ring water outlet. When the nozzle is inserted into the interface, the water inlet cavity is connected to the first water inlet.

10. A shower unit with quick-change function according to claim 9, characterized in that, A push rod is provided at the front end of the plug located in the uppermost fixing seat of the shower rod, and a one-way valve is provided at the second water inlet. When the shower head is inserted into the uppermost fixing seat, the push rod can drive the one-way valve to open, so that the water in the water inlet chamber can flow through the second water inlet to the outer ring water outlet for water discharge. At the same time, the water in the water inlet chamber can flow through the first water inlet to the inner ring water outlet for water discharge.

11. A showerhead with quick-change function according to claim 10, characterized in that, It also includes a switching valve assembly, which is configured to be connected to a water source. The fixed seat at the bottom of the shower rod is connected to a water outlet end of the switching valve assembly. Adjacent fixed seats are connected by an intermediate pipe so that the water inlet chambers of the fixed seats are connected in series.

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