A shower filter

Abstract

The utility model relates to a shower equipment technical field discloses a shower filter, including casing, filter module and waterway switching module. The casing is equipped with water inlet, first water outlet and second water outlet, the water inlet end of filter module is connected with water inlet, the water outlet end of waterway switching module is connected with filter module, is used for receiving the water flow after filtration, and responds to the user operation, and selectively guides the water flow after filtration to first water outlet or second water outlet. The structure can make the water flow into the casing switch output between two water outlets after filtration.

Description

Technical Field

[0001] This utility model relates to the field of shower equipment technology, specifically to a shower head filter. Background Technology

[0002] Most shower filters on the market use a fixed "one inlet, one outlet" design. The inlet connects directly to the bathroom wall pipe, allowing water to flow unidirectionally through the internal filter element before exiting from a single outlet. This outlet is typically fixed to either a handheld shower or an overhead shower, making it impossible to accommodate both components simultaneously or switch flexibly. These filters also have limited functionality, offering no additional practical features beyond water purification. More importantly, due to the "one inlet, one outlet" structure, users who want to switch from an overhead shower to a handheld shower must manually unscrew the filter's connection to their existing shower component and reconnect it to the other. This cumbersome process, coupled with repeated disassembly and reassembly, can easily lead to loose connections and leaks, failing to meet the need for flexible water flow switching in everyday bathroom scenarios.

[0003] Furthermore, existing shower filters also have significant shortcomings in terms of structure and maintainability. Firstly, the internal connectors and filter cartridges are typically installed in a fixed or integrated manner. When a single component fails or the filter cartridge reaches the end of its lifespan, it is often necessary to disassemble the entire device or replace the core assembly, resulting in high maintenance costs and complex operations. Secondly, the outer casing structure is simplistic and does not consider ease of maintenance. Routine cleaning or filter cartridge replacement requires removing the entire product from the wall, increasing the user's operational burden and time costs. Thirdly, the water circuit design is relatively rigid, only providing filtered water output from a single outlet. It cannot offer users the flexibility to choose between overhead and handheld showerheads while retaining the filtration function, failing to meet the multi-functional requirements of modern bathroom systems. Summary of the Invention

[0004] This invention provides a shower head filter to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0006] A shower filter includes: a housing having an inlet, a first outlet, and a second outlet; a filter module having its inlet end connected to the inlet; and a water path switching module connected to the outlet end of the filter module; wherein the water path switching module is configured to receive filtered water flow and, in response to user operation, selectively direct the filtered water flow to either the first outlet or the second outlet.

[0007] Furthermore, the filter module is detachably connected to the housing.

[0008] Furthermore, the filtration module includes a filter element and a removable filter housing for housing the filter element.

[0009] Furthermore, the water circuit switching module includes a valve body and a valve core, and the water circuit switching is achieved by driving the valve core to move.

[0010] Furthermore, the valve core switches the water path through rotational motion.

[0011] Furthermore, a sealing element is provided on the valve core. When the valve core rotates to a specific position, the sealing element cooperates with the flow channel in the valve body to block one of the water flows.

[0012] Furthermore, an elastic element is provided between the sealing element and the valve core. When the sealing element mates with the flow channel, the elastic element provides tactile feedback.

[0013] Furthermore, the housing is also equipped with a water flow distribution mechanism for guiding the water flow from the inlet to the filter module.

[0014] Furthermore, a support structure for supporting the filter element is provided inside the filter housing, and a water flow channel is formed between the support structure and the inner wall of the filter housing.

[0015] Furthermore, the first water outlet is connected to the overhead shower, and the second water outlet is connected to the handheld shower head.

[0016] The advantages of this utility model over the prior art are as follows:

[0017] This invention utilizes a one-in-two-out structure to achieve a systematic operation of filtration and diversion. First, water flows into the communicating vessel and is forcibly guided to the filter element, where it is purified, ensuring that the water at any outlet is filtered. Then, the purified water flows into a built-in adapter. Users simply rotate a knob to activate the internal valve, easily switching the water flow to the overhead spray or shower head pipes. The entire process requires no pipe disassembly, completely eliminating the hassle of manual pipe installation. This design provides dual-purification benefits while offering advantages such as convenient operation, reliable sealing, and modular maintenance, fundamentally solving the pain points of traditional shower head filters, such as limited functionality and inconvenient switching. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 This is a perspective view of an embodiment of the present invention.

[0020] Figure 2 for Figure 1An exploded schematic diagram of the outer casing in one of the embodiments.

[0021] Figure 3 for Figure 1 A schematic diagram of the internal structure of the outer shell in the embodiment shown.

[0022] Figure 4 for Figure 3 Cross-sectional views of the communicating vessel and filter shell in the illustrated embodiment.

[0023] Figure 5 for Figure 1 A schematic diagram of the adjustment structure in the illustrated embodiment.

[0024] Figure 6 for Figure 5 An exploded view of the regulating component in the illustrated embodiment.

[0025] Reference numerals: outer casing (100); opening (110); cover plate (120); communicating vessel (200); first pair of interfaces (210); second pair of interfaces (220); water outlet pipe (230); filter element (300); filter cartridge (310); filter housing (320); support plate (321); adapter (400); connecting cylinder (410); first pipe (420); second pipe (430), third pipe (440); adjusting element (450); knob (451); rotating shaft (452); sealing block (453); spring (454); first water pipe (500); shower head (510); second water pipe (600); top spray (610); water inlet pipe (700); water flow direction (A). Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is illustrative in nature and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary rather than limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0029] Please refer to Figure 1 and Figure 2 A shower head filter includes a housing 100 and an inlet pipe 700. A communicating vessel 200 is provided inside the housing 100, and a filter element 300 is provided at one end of the communicating vessel 200.

[0030] In this invention, the outer shell 100 is generally conical, while in other alternative embodiments, the outer shell 100 may be a prototype or other specific shape.

[0031] The communicating vessel 200 is detachably installed from the housing 100 using bolts or snap-fit ​​connections. Bolted connections provide stronger structural rigidity and sealing pressure, suitable for scenarios requiring reliable fixation; while snap-fit ​​connections prioritize ease of installation, allowing for quick disassembly with tools. Both methods ensure that the communicating vessel 200 can be removed from the housing as a single unit, greatly facilitating subsequent cleaning, maintenance, or replacement.

[0032] In other embodiments (not shown in the figures), a primary pre-filter is integrated at the front end of the inlet pipe 700 to intercept large particulate impurities. This filter is designed with a rotatable scraping structure; by manually rotating an external knob, the built-in scraper removes accumulated dirt from the filter surface. The scraped-off impurities are discharged with a small amount of flushing water from a specially designed drain port at the bottom. This design effectively reduces the load on the filter element, extends its service life, and simplifies daily maintenance.

[0033] In other embodiments, please refer to Figure 1 and Figure 2 The outer casing 100 has a dedicated inspection port on its side, equipped with a removable cover 120. This design allows staff to access internal parts directly by opening the cover without disassembling the entire casing, thereby enabling quick inspection, replacement, or routine maintenance of critical components such as the communicating vessel and filter element, significantly improving the convenience and efficiency of equipment maintenance.

[0034] It should be noted that the cover plate 120 can be installed on the outer casing 110 by bolts or clips.

[0035] In this embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 One end of the communicating vessel 200 is provided with a first pair of interfaces 210, one end of which extends to the outside of the housing 100 and is connected to the water inlet pipe 700, so that water can enter the interior of the communicating vessel 200 through the first pair of interfaces 210.

[0036] In other embodiments, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The outer casing 100 has an opening 110 at one end, and the communicating vessel 200 has a second pair of interfaces 220 corresponding to this opening. The filter element 300 includes a filter cartridge 310, one end of which is connected to the second pair of interfaces 220 via the opening 110. Thus, water entering the communicating vessel 200 will be filtered by the filter cartridge 310.

[0037] The filter cartridge 310 offers two filling options: one is to fill it with a single type of filter material to achieve the core filtration function; the other is to fill it with multiple different filter materials, which are combined to form a multi-stage filtration system, aiming to remove different types of impurities from the water step by step to improve the overall filtration efficiency and effect.

[0038] In other embodiments, the filter element 310 is connected to the second pair of interfaces 220 in a detachable manner. Specifically, a threaded connection can be used to achieve a secure seal, or a magnetic or snap-fit ​​method can be used to achieve quick assembly and replacement.

[0039] In other embodiments, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The filter element 300 also includes a filter housing 320, which is disposed in the opening 110, and the filter element 310 is built into the filter housing 320. This design provides the filter element with a stable structural support and protection, and also realizes the independent modularity of the filter element, which facilitates overall maintenance and replacement.

[0040] It should be noted that after the filter housing 320 is installed, an annular gap is formed between it and the internal filter element 310. Simultaneously, after the filter element 310 is installed, a portion of its outer side is covered by the second pair of interfaces 220. An annular gap is also reserved between the two. This design provides guidance and tolerance space for the installation and removal of the filter element, serves as a water flow channel, and avoids assembly stress caused by processing or thermal expansion errors.

[0041] To ensure the reliability of the system seal, this embodiment adopts a double sealing design: first, a sealing ring is set on the mating surface of the filter shell 320 and the outer shell opening 110 to prevent water from leaking from the outer shell; second, a sealing ring is set on the mating surface of the second pair of interfaces 220 and the filter element 310 to ensure the filtration effect.

[0042] In other embodiments, the filter housing 320 is connected to the opening 110 in a detachable manner. Specifically, a threaded connection can be used to achieve a secure seal, or a magnetic or snap-fit ​​method can be used to achieve quick assembly and replacement.

[0043] In other embodiments (not shown in the figures), the filter element 310 is connected to the second pair of interfaces 220 using a standardized quick-connect connector, enabling plug-and-play use and one-click replacement. Simultaneously, a transparent viewing window is provided on the housing 100, and in conjunction with an electronic tag or mechanical counter on the filter element 310, the user can directly observe the usage status or remaining lifespan of the filter element 310, thereby replacing it at the optimal time, improving user experience and maintenance accuracy.

[0044] For other implementations, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The filter housing 320 has multiple support plates 321 fixedly installed on its bottom inner wall (i.e., the end away from the opening 110). This component serves both a support and positioning function: during installation, it supports the end of the filter element 310, providing it with stable axial support; at the same time, its specific structure ensures that a preset gap is maintained between the end of the filter element and the bottom of the filter housing. This gap can serve as a water flow channel.

[0045] In other embodiments (not shown in the figures), multiple support plates 321 are provided with insertion grooves that match the shape of the end of the filter element 310. During installation, the end of the filter element 310 snaps into the groove. This structure not only provides additional radial support but also effectively prevents the filter element 310 from shifting or loosening during operation, significantly improving the stability and reliability of the connection.

[0046] In other embodiments, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The bottom of the communicating vessel 200 is provided with a water outlet pipe 230. The water outlet pipe 230 is located between the connection point of the second pair of interfaces 220 and the filter element 310, and between the annular gap formed between the filter shell 320 and the filter element 310. This allows the water source to be efficiently guided to the water outlet pipe 230 through the gap and the annular gap after being filtered by the filter element 310, thereby allowing the water source to be discharged.

[0047] In this embodiment, a connecting device 400 is provided inside the outer shell 100 and below the communicating vessel 200. The connecting device 400 includes a connecting cylinder 410, on which a first pipe 420 is fixedly installed. The first pipe 420 is connected to the water outlet pipe 230, so that the filtered water source can enter the connecting cylinder 410 through the guidance of the water outlet pipe 230 and the first pipe 420.

[0048] In other embodiments, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The connecting cylinder 410 is provided with a second pipe 430 and a third pipe 440 to realize dual water outlet. The second pipe 430 extends to the outside of the outer shell 100 and is connected to the first water pipe 500. The other end of the first water pipe 500 is fixedly installed with a shower head 510. The third pipe 440 is connected to the second water pipe 600. The other end of the second water pipe 600 extends to the surface of the outer shell 100 and is fixedly installed with a top spray 610.

[0049] In this design, a portion of the second water pipe 500 is embedded in the communicating vessel 200, thereby providing additional support for the second water pipe 600. This structure effectively disperses the torque generated by the top spray, reduces pipe vibration, and improves the overall reliability of the system.

[0050] In other embodiments, the connecting cylinder 410 is provided with an adjusting member 450, which is used to divert water flow and control the water flow to the second pipe 430 or the third pipe 440.

[0051] Please refer to the following: Figure 5 and Figure 6The adjusting component 450 includes a knob 451 rotatably mounted on the surface of the cover plate 120 away from the outer casing 100. A rotating shaft 452 is fixedly mounted on the knob 451 and movably passes through the cover plate 120. When the cover plate 120 is installed on the outer casing 100, the rotating shaft 452 can be inserted into the connecting cylinder 410. The surface of the rotating shaft 452 has two grooves, each containing a sealing block 453. The two sealing blocks 453 are staggered. When the knob 451 is rotated, the rotating shaft 452 rotates accordingly, so that one of the sealing blocks 453 can block the inlet of the second pipe 430, while the other is in an unblocked state, thereby allowing water to flow through the third pipe 440 in a single path. Rotating the knob 451 in the opposite direction can achieve the opposite on / off effect, thus completing the selective switching of the two water paths.

[0052] In other embodiments, please refer to Figure 5 and Figure 6 A spring 454 is fixed to the inner wall of the bottom of the groove, and its other end is connected to a sealing block 453. When the knob 451 is rotated to a certain position, aligning the sealing block 453 with the corresponding pipe inlet, a portion of the sealing block 453 is pushed into the pipe inlet under the action of the spring force. This action produces a small radial displacement, thus creating a noticeable mechanical resistance to the continuously rotating knob, providing the user with a clear sense of click. This tactile feedback directly informs the user that the pipe has been reliably sealed and the water circuit switching has been completed.

[0053] It should be noted that, to achieve a reliable seal and clear tactile feedback, the sealing block 453 employs a composite structure combining a rigid core and a soft outer layer. Its internal core framework uses rigid engineering plastics such as POM (polyoxymethylene) or nylon to provide solid support and convert spring force into a distinct click-locking sensation. The outer layer is covered with an elastic material such as NBR (nitrile butadiene rubber) or silicone, utilizing its flexibility to deform and tightly conform to the pipe inlet during sealing, thereby achieving static sealing and buffering. This design ensures accurate operation and long-term sealing reliability.

[0054] In other embodiments (not shown in the figures), the bottom of the communicating vessel 200 is radially connected with multiple second pairs of interfaces 220, and the outer casing 100 has an equal number of openings 110 at corresponding positions. Each opening 110 is equipped with an independent filter element 300. These filter elements 300 can be filled with filter media with different functions (such as softening resin, activated carbon, KDF, etc.) to form a parallel multi-stage filtration system. Users can select to activate specific filter elements 310 according to water quality requirements, or control the water flow through different combinations of filter elements 310 through the multi-way valve in the adapter 400 to achieve customized filtration and a longer filter replacement cycle.

[0055] In summary, as can be seen from the above description, this utility model achieves the following technical effects:

[0056] This invention utilizes a one-in-two-out structure to achieve a systematic operation of filtration and diversion. First, water flows into the communicating vessel 200 and is forcibly guided to the filter element 310, where it is purified, ensuring that the water at any outlet is filtered. Then, the purified water flows into the built-in adapter 400. Users simply rotate the knob 451 to activate the internal valve core, easily switching the water flow to the pipes of the overhead spray 610 or the shower head 510. The entire process requires no pipe disassembly, completely eliminating the hassle of manual pipe installation. This design provides dual-purification benefits while offering advantages such as convenient operation, reliable sealing, and modular maintenance, fundamentally solving the pain points of traditional shower head filters, which are characterized by limited functionality and inconvenient switching.

[0057] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0058] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0059] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0060] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shower head filter, characterized in that, include: The casing is provided with a water inlet, a first water outlet, and a second water outlet. and The filter module has its inlet end connected to the water inlet. and The water path switching module is connected to the outlet of the filter module; The water path switching module is configured to receive filtered water flow and, in response to user operation, selectively direct the filtered water flow to either the first or second outlet.

2. The shower head filter according to claim 1, characterized in that, The filter module is detachably connected to the housing.

3. The shower head filter according to claim 1, characterized in that, The filtration module includes a filter element and a removable filter housing for housing the filter element.

4. The shower head filter according to claim 1, characterized in that, The water circuit switching module includes a valve body and a valve core, and the water circuit switching is achieved by driving the valve core to move.

5. The shower filter according to claim 4, characterized in that, The valve core switches the water path by rotating.

6. The shower filter according to claim 5, characterized in that, The valve core is equipped with a sealing element. When the valve core is rotated to a specific position, the sealing element cooperates with the flow channel in the valve body to block one of the water flows.

7. The shower filter according to claim 6, characterized in that, An elastic element is provided between the sealing element and the valve core. When the sealing element is engaged with the flow channel, the elastic element provides tactile feedback.

8. The shower filter according to claim 1, characterized in that, The housing also includes a water flow distribution mechanism for guiding the water flow from the inlet to the filter module.

9. The shower filter according to claim 3, characterized in that, The filter housing is equipped with a support structure for supporting the filter element, and a water flow channel is formed between the support structure and the inner wall of the filter housing.

10. The shower head filter according to claim 1, characterized in that, The first water outlet connects to the overhead shower, and the second water outlet connects to the handheld shower head.

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