Filtering pull-out faucet

Abstract

The utility model provides a filter formula pull out faucet, including faucet body and filter part, the filter part has the water inlet path and the water outlet path of water flow, the filter part contains the seal cover of openable, opens the seal cover can form the operation mouth for taking and placing filter piece. The utility model discloses through the integration of filter part in faucet body to set up the seal cover of openable, so that user need not use any tool, can directly open the seal cover, through the operation mouth formed fast taking and placing and replacing filter piece, greatly simplified filter core replacement process, improved the convenience of maintenance and user experience, guarantee the integration of filter part and faucet body's structure and aesthetic quality simultaneously.

Description

Technical Field

[0001] This utility model relates to a filter-type pull-out faucet. Background Technology

[0002] With increasing demands for quality of life and healthy drinking water, kitchen faucets with water purification functions have become a common feature in modern homes. Currently, filter faucets on the market mainly fall into two structural types. The first type integrates the filter component inside the faucet body. While this structure offers a sleek, integrated look, it has significant drawbacks: replacing the filter usually requires professional tools to disassemble the faucet body, making the process cumbersome, maintenance costly, and difficult for ordinary users to perform, leading to expired filter cartridges and affecting filtration efficiency and water safety. The second type uses an external, independent filter module connected to the faucet via a pipe. While this solves the filter replacement problem, it typically suffers from bulky modules, occupying under-counter space, complex water connections with numerous joints, and a high risk of leakage. More importantly, external modules detract from the overall aesthetics of the kitchen, and users cannot easily observe the filter's condition during daily use, making it easy to forget to replace it. Furthermore, existing replaceable filter faucets often use threaded connections between the filter and the faucet. Frequent tightening is not only laborious, but the threads wear down over time, leading to leaks due to poor sealing. At the same time, aligning and turning operations in the cramped under-sink space are very inconvenient, resulting in a poor user experience.

[0003] Therefore, there is a pressing technical problem in the existing technology: how to provide a filter-type pull-out faucet that can maintain the overall integrity and aesthetics of the faucet's appearance, allow users to easily and quickly replace the filter without tools, and ensure reliable sealing at the connection and smooth operation. Utility Model Content

[0004] This invention provides a filter-type pull-out faucet that can effectively solve the above problems.

[0005] This utility model is implemented as follows: A filter-type pull-out faucet includes a faucet body and a filter section. The filter section has an inlet and an outlet for water flow. The filter section includes an openable sealing cover, which, when opened, forms an operating port for removing and placing filter elements.

[0006] The beneficial effects of this utility model are: (1) By integrating the filter part into the faucet body and setting an openable sealing cover, the user can directly open the sealing cover without using any tools, and quickly take out and replace the filter element through the formed operation port. This greatly simplifies the filter element replacement process, improves the convenience of maintenance and user experience, and at the same time ensures the integrated structure and aesthetics of the filter part and the faucet body. Attached Figure Description

[0007] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0008] Figure 1 This is the front view of this utility model.

[0009] Figure 2 This is a schematic diagram of the filter section of this utility model.

[0010] Figure 3 This is a utility model Figure 2 A magnified view of A in the middle.

[0011] Figure 4 This is a utility model Figure 2 Enlarged view of B Figure 5 This is a cross-sectional view of the filter section of this utility model.

[0012] Figure 6 This is a structural schematic diagram of the filter inner shell and mounting cover of this utility model.

[0013] Figure 7 This is a schematic diagram of the internal structure of the filter inner shell of this utility model. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0015] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0016] Reference Figure 1-4 As shown, a filter-type pull-out faucet includes a faucet body and a filter section 10. The filter section 10 has an inlet and an outlet for water flow. The filter section 10 includes an openable sealing cover 106, which, when opened, forms an operating port for removing and placing the filter element 104. The filter section 10 includes a mounting cover 108 fixed to the faucet body and a filter inner shell 102 detachably connected to the mounting cover 108. The sealing cover 106 is disposed on the filter inner shell 102. The shell 100 also has a mounting portion 40 for connecting to a countertop.

[0017] The sealing cover 106 has a semi-open groove (not shown in the figure) on its outer periphery, and a rotating buckle (not shown in the figure) is provided on the inner wall of one end of the filter inner shell 102. When the sealing cover 106 is connected to the filter inner shell 102, the sealing cover 106 is first placed into the filter inner shell 102, and then the filter inner shell 102 is rotated so that the rotating buckle on it is connected to the groove, thereby quickly connecting the sealing cover 106 and the filter inner shell 102.

[0018] In one embodiment, the connection between the sealing cap 106 and the filter inner shell 102 includes, but is not limited to, the rotary buckle and slot connection described above, and can also be a threaded connection or other fixing method. Therefore, this application does not impose too many restrictions, and the choice can be made according to actual needs.

[0019] The sealing cover 106 is provided with an elastic snap-fit ​​structure; the elastic snap-fit ​​structure includes a tapered fastener 116 and a spring 122 that provides elastic force to the tapered fastener 116. One end of the spring 122 is connected to a protrusion 1080 provided on the mounting cover 108, and one end of the tapered fastener 116 is connected to a snap-fit ​​hole 120.

[0020] Specifically, a date indicator is provided on the mounting cover 108, and a protrusion 1080 is provided on the date indicator and connected to the spring 122. When replacing the filter element 104, the date indicator is rotated to the initial position. After the filter element 104 has been used for a period of time, the date indicator can be rotated clockwise or counterclockwise to disengage the conical fastener 116 from the fastening hole 120 and move it into the next hole. After a "click" sound is heard, the rotation of the date indicator is completed. This allows the usage time of the filter element 104 to be recorded, which is convenient for subsequent replacement of the filter element 104.

[0021] The filter inner shell 102 is provided with an inlet 1022 and an outlet 1024, and the outlet 1024 is connected to an outlet connector 1026. When the filter inner shell 102 is installed on the shell 100, the inlet 1022 is connected to an inlet pipe, and the outlet connector 1026 is connected to an outlet pipe. The inlet pipe is an adapter, which is used to connect the first pipe 50 and the second pipe 60.

[0022] Specifically, the inlet 1022 serves as the entrance to the filter section. It connects to the water inlet pipe from the adapter via a quick connector or sealing ring structure. This interface ensures that the water path is automatically connected when the filter inner shell 102 is installed in place; and it can automatically close or disconnect during disassembly to prevent leakage. After the water enters through the inlet 1022, it flows through the filter element 104 (such as PP cotton, activated carbon rod, etc.) to complete the purification. The purified water is discharged from the outlet 1024 and immediately enters the outlet connector 1026. This connector is the total outlet of the filtered purified water and is responsible for delivering the purified water to the outlet end of the faucet (such as a pull-out hose, shower head, or dedicated purified water outlet).

[0023] Furthermore, when the user needs to filter water, a switching mechanism (such as a diverter valve) on the faucet allows only the cold water from the first pipe 50 to enter the specific flow channel leading to the filter output end within the adapter. The cold water flows through the output end of the adapter → the inlet pipe → the inlet 1022 of the filter inner shell. The water penetrates the filter element 104 within the filter inner shell, and impurities are filtered out. The purified water flows out from the outlet 1024 → into the outlet connector 1026 → and is guided to a dedicated clean water outlet (which may be a separate small outlet or a main outlet switched by a diverter) through the internal pipe connected to it. Thus, through a highly integrated adapter, the water distribution is internalized, eliminating the need for additional components such as tees and diverter valves on the outside of the faucet. This maximizes the saving of under-sink installation space and maintains the simplicity and integrity of the product's appearance. It also achieves physical isolation between basic water use and purified drinking water. Hot water and washing water requiring high flow rates do not pass through the filter at all. This protects the filter element 104 from damage by hot water and shortens its lifespan, and also avoids the filter element's limitation on water flow speed affecting normal use. Furthermore, the filtration water circuit is integrated inside the faucet, realizing the concept of "faucet as water purifier". Users do not need to drill holes in the countertop to install an additional water purifier faucet, nor do they need to draw water from a distant water purifier. They can directly obtain fresh filtered water from the kitchen faucet, which is extremely convenient.

[0024] The mounting cover 108 is provided with a fastener 1082, and the sealing cover 106 is provided with a fastening interface 110 that is compatible with the fastener 1082.

[0025] During installation, the user roughly aligns the filter inner shell 102 with the installation area of ​​the mounting cover 108. During this approach, the edge of the snap-fit ​​interface 110 on the sealing cover 106 first contacts the guide ramp at the front end of the snap fastener 1082. As the user continues to apply force, the guide ramp decomposes the vertical force into a component that causes elastic deformation (like cantilever beam bending) or displacement (like a compression spring) in the snap fastener 1082. Under this component, the snap fastener 1082 is forced to move to one side (usually backward or inward), making room for the continued advancement of the sealing cover 106. When the sealing cover 106 is pushed to the preset fully installed position, the locking part of the snap fastener 1082 moves precisely to the position aligned with the snap-fit ​​interface 110. At this point, due to the pressure on the guide surface... When the force disappears, the fastener 1082, relying on its own elastic restoring force or the spring's restoring force, instantly springs back to its original position, and its locking part is fully embedded in the fastening interface 110 with a "click." This clear auditory and tactile feedback clearly conveys to the user the information that "it is installed in place and locked." When disassembling, the user needs to apply a force directly to the locking part of the fastener 1082. The direction of this force is opposite to the direction of the elastic force when the latch is reset. This external force forces the fastener 1082 to undergo elastic deformation or displacement again, causing its locking part to completely exit from the fastening interface 110. When the lock is released, the user can easily pull the sealing cover 106 off the mounting cover 108.

[0026] The filter inner shell 102 is provided with a snap-fit ​​member 1020 for elastically abutting against the shell 100; the filter inner shell 102 is provided with a first strip rod 112 and a second strip rod 114. The first strip rod 112 and the second strip rod 114 are reinforcing ribs to improve the strength of the filter inner shell 102.

[0027] Working principle: When the user needs to filter water, the cold water flows into the adapter through the first pipe 50 via the faucet switching mechanism. After converging, it is delivered to the inlet 1022 of the already installed filter inner shell 102 through the inlet pipe. The water flows through the filter element 104 inside the filter inner shell 102 to complete the purification. The purified water is then guided to the dedicated purified water pipe through the outlet 1024 and the outlet connector 1026. The sealing cover 106 achieves quick locking with the elastic fastener 1082 of the mounting cover 108 through the fastening interface 110 on it. The connection reliability is enhanced by the conical fastener 116 and the fastening hole 120. At the same time, the snap fastener 1020 ensures a tight and elastic contact with the shell 100. The entire structure realizes the integration of filtration function and convenient maintenance.

[0028] 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, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A filter-type pull-out faucet, comprising a faucet body and a filter section (10), characterized in that: The filter section (10) has an inlet and an outlet for water flow, and includes an openable sealing cover (106). Opening the sealing cover (106) forms an operating port for taking out and putting in the filter element (104).

2. A filter-type pull-out faucet according to claim 1, characterized in that, The filter section (10) includes a mounting cover (108) fixed to the faucet body and a filter inner shell (102) detachably connected to the mounting cover (108), and a sealing cover (106) is disposed on the filter inner shell (102).

3. A filter-type pull-out faucet according to claim 2, characterized in that, The mounting cover (108) is provided with a fastener (1082), and the sealing cover (106) is provided with a fastening interface (110) that is adapted to the fastener (1082).

4. A filter-type pull-out faucet according to claim 1, characterized in that, The sealing cap (106) is provided with an elastic snap-fit ​​structure.

5. A filter-type pull-out faucet according to claim 4, characterized in that, The elastic snap-fit ​​structure includes a tapered fastener (116) and a spring (122) that provides elastic force to the tapered fastener (116). One end of the spring (122) is connected to a protrusion (1080) provided on the mounting cover (108), and one end of the tapered fastener (116) is connected to a snap-fit ​​hole (120).

6. A filter-type pull-out faucet according to claim 2, characterized in that, The filter inner shell (102) is provided with an inlet (1022) and an outlet (1024), and the outlet (1024) is connected to an outlet connector (1026); when the filter inner shell (102) is installed on the shell (100), the inlet (1022) is connected to an inlet pipe, and the outlet connector (1026) is connected to an outlet pipe.

7. A filter-type pull-out faucet according to claim 6, characterized in that, The water inlet pipe is an adapter, which is used to connect the first pipe (50) and the second pipe (60).

8. A filter-type pull-out faucet according to claim 2, characterized in that, The filter inner shell (102) is provided with a snap-fit ​​member (1020) for elastically abutting against the shell (100).

9. A filter-type pull-out faucet according to claim 2, characterized in that, The filter inner shell (102) is provided with a first strip rod (112) and a second strip rod (114).

10. A filter-type pull-out faucet according to claim 8, characterized in that, The housing (100) is also provided with a mounting part (40) for connecting to the tabletop.

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