Tap water composite filter

Abstract

The utility model relates to the technical field of tap water filters, and discloses a tap water composite filter which comprises a composite filter element and a brush bracket, the brush bracket is of a hollow cylinder structure with brushes fixed on the inner side and the outer side, and is movably sleeved outside the composite filter element; a filter shell, a blow-down valve and a blow-down switch; the brush support is movably sleeved with the filter shell, a blow-down valve is arranged at the bottom of the filter shell, the top of the blow-down valve is connected and matched with the bottom of the brush support, a blow-down switch is fixed to the bottom of the blow-down valve, and the blow-down valve is opened after the blow-down switch rotates; the top cover is arranged at the top of the filter shell, and a water inlet and a water outlet are reserved in the front and rear sides. Compared with the prior art, the composite filter element has the advantages that the composite filter element can be automatically cleaned through rotation, the filter does not need to be opened, cleaning is more convenient, the blow-down valve is arranged, filtered sewage impurities can be discharged, the service life of the composite filter element is prolonged, and the filtering effect of the composite filter element is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of tap water filters, in particular to a tap water composite filter. Background Art

[0002] A tap water filter, also known as a water purifier or water purifier, is a device that filters tap water for daily household use, ensuring it meets the standards for cooking and drinking. It's installed directly on the faucet, allowing users to switch between tap water and purified water. In daily use, people choose filters with different filter cartridges based on their water requirements.

[0003] Most of the existing tap water filters on the market purify tap water through the filter element or ultrafiltration membrane inside the filter housing. However, during use, the filter element and ultrafiltration membrane cannot clean themselves, which can easily cause the filter element to be blocked, seriously affecting the purification effect of the tap water filter and the tap water pressure. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above technical difficulties and provide a tap water composite filter, wherein the composite filter element is movably sleeved in the brush bracket. By rotating, the brush on the brush bracket will clean the composite filter element, and the sewage after cleaning will be discharged through the sewage valve.

[0005] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0006] A tap water composite filter, comprising:

[0007] Composite filter element and brush holder; the brush holder is a hollow cylindrical structure with brushes fixed on both sides, and the composite filter element is movably sleeved in the brush holder;

[0008] Filter housing, drain valve and drain switch; the brush bracket is movably sleeved in the filter housing, and a drain valve is provided at the bottom of the filter housing. The top of the drain valve is connected and matched with the bottom of the brush bracket. A drain switch is fixed at the bottom, and the drain switch is provided with a drain port corresponding to the drain valve. When the drain switch is rotated, the drain valve opens.

[0009] The top cover is arranged on the top of the filter housing, and a water inlet and a water outlet are reserved on the front and rear sides. Water enters from the water inlet and is filtered by the composite filter element before being discharged through the water outlet.

[0010] As an improvement, a water inlet filter is provided on the top of the composite filter element, and the water inlet of the top cover is bent downwardly and extended inside the top cover to communicate with the water inlet filter.

[0011] As an improvement, a pair of positioning blocks are formed on both sides of the top of the side wall of the composite filter element, and a positioning notch that cooperates with the positioning block is formed on the inner wall of the top cover. After the positioning block is inserted into the positioning notch, the composite filter element is sleeved and fixed in the top cover.

[0012] As an improvement, the top cover is threadably fitted on the top of the filter housing and can be rotated via the thread.

[0013] The advantages of this utility model compared with the prior art are:

[0014] 1. The utility model can automatically clean the composite filter element by rotating it, without opening the filter, making cleaning more convenient.

[0015] 2. The utility model is provided with a sewage discharge valve, which can discharge impurities in the filtered sewage, thereby extending the service life of the composite filter element and ensuring the filtering effect of the composite filter element.

[0016] 3. The water inlet and outlet of the utility model are both pre-threaded, making installation more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a schematic diagram of the structural decomposition of the present utility model.

[0019] Figure 3 It is a partial structural diagram of the utility model.

[0020] As shown in the figure: 1. Top cover; 2. Composite filter element; 3. Brush holder; 4. Filter housing; 5. Drain valve; 6. Drain switch; 7. Dust cover; 8. Water inlet filter; 9. Positioning block; 10. Water inlet; 11. Water outlet; 12. Drain outlet. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variations thereof are intended to cover non-exclusive inclusions.

[0022] The present invention will be described in further detail below with reference to the accompanying drawings.

[0023] A tap water composite filter, such as Figure 1 Shown, including:

[0024] Composite filter element 2 and brush holder 3; the brush holder 3 is a hollow cylindrical structure with brushes fixed on both sides (the bottom of the brush holder 3 is closed, and a hexagonal prism protrusion is formed downward, and a through hole is reserved in the center of the hexagonal prism protrusion), the composite filter element 2 is movably sleeved in the brush holder 3 (the composite filter element 2 is a cylindrical structure), and a water inlet filter 8 is provided on the top of the composite filter element 2, and a pair of positioning blocks 9 are formed on both sides of the top of the side wall (the water inlet filter 8 and the positioning block 9 are as shown in FIG. Figure 3 As shown), the composite filter element 2 is wrapped with a stainless steel filter layer on the periphery, and filter cotton and filter carbon core are arranged inside.

[0025] Filter housing 4, drain valve 5 and drain switch 6; the filter housing 4 is a cylindrical structure with an open top, and the top tube mouth is provided with a thread, the drain valve 5 is movably connected between the lower and upper sections, and a hexagonal socket is formed at the top of the upper section, the hexagonal protrusion is plugged into the hexagonal socket, so that the bottom of the brush holder 3 is connected to the inner bottom surface of the filter housing 4 (through the bottom wall of the filter housing 4 and connected to the brush holder 3), and is set at the bottom of the filter housing 4 (the bottom of the filter housing 4 is formed with an internal thread structure, and the drain valve 5 is connected to the filter housing 4 bottom threaded engagement), the drain switch 6 is a cap structure with its opening facing upward, and an anti-slip groove is provided on the cap wall, a drain port 12 is reserved on the bottom wall, and a dust cover 7 is installed on the bottom surface. The drain switch 6 is fixed to the lower section of the drain valve 5, and after the drain switch 6 is rotated, the drain valve 5 is opened to discharge sewage (a drain valve water inlet is reserved on the side wall of the upper section of the drain valve 5, and after the drain switch 6 drives the drain valve 5 to rotate, the drain valve enters the filter housing 4 upward and exposes the water inlet, thereby discharging the water inside the filter housing 4).

[0026] The top cover 1 is a cap structure with a large bottom and a small top (such as Figure 1 As shown), the thread is engaged with the top of the filter housing 4 and rotated by the thread, and a water inlet 10 and a water outlet 11 are reserved on the front and back sides of the top cover 1, and threads are reserved at the pipe mouths of the water inlet 10 and the water outlet 11. The water inlet 10 is bent downward and extended in the top cover 1 to be connected with the water inlet filter 8 (the water inlet 10 is movably sleeved on the outside of the water inlet filter 8), and a positioning notch is formed on the inner wall of the top cover 1 to cooperate with the positioning block 9, and after the positioning block 9 is plugged into the positioning notch, the composite filter element 2 is sleeved and fixed in the top cover, and water enters from the water inlet 10 and is filtered by the composite filter element 2, and then discharged through the water outlet 11, and an anti-slip groove is provided on the outer wall of the top cover 1.

[0027] In the specific implementation of this embodiment:

[0028] The water inlet 10 of the tap water composite filter is connected to the tap water pipe thread, and the water outlet 11 is connected to the faucet thread. When in use, turn on the faucet, the tap water enters from the water inlet 10 and is filtered by the composite filter element 2, then enters the faucet through the water outlet 11 and flows out.

[0029] When cleaning the composite filter element 2, turn off the faucet, rotate the drain switch 6 to open the drain valve 5, and rotate it repeatedly so that the brush inside the brush holder 3 cleans the composite filter element 2, and the brush outside cleans the inner wall of the filter housing 4. The cleaned impurities and dirt are taken away by tap water and discharged from the drain port 12 through the drain valve 5. After cleaning, close the drain valve 5.

[0030] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A tap water composite filter, characterized in that: include: A composite filter element (2) and a brush holder (3); the brush holder (3) is a hollow cylindrical structure with brushes fixed on both inner and outer sides, and the composite filter element (2) is movably sleeved in the brush holder (3); A filter housing (4), a drain valve (5) and a drain switch (6); the brush holder (3) is movably sleeved in the filter housing (4), and a drain valve (5) is provided at the bottom of the filter housing (4); the top of the drain valve (5) is connected and matched with the bottom of the brush holder (3); a drain switch (6) is fixed at the bottom, and the drain switch (6) is provided with a drain port (12) corresponding to the drain valve (5); when the drain switch (6) is rotated, the drain valve (5) is opened; The top cover (1) is arranged on the top of the filter housing (4) and is provided with a water inlet (10) and a water outlet (11) on both the front and rear sides. Water enters from the water inlet (10) and is filtered by the composite filter element (2) before being discharged through the water outlet (11).

2. A tap water composite filter according to claim 1, characterized in that: A water inlet filter (8) is provided on the top of the composite filter element (2), and the water inlet filter (8) is communicated with the water inlet (10) of the top cover (1).

3. A tap water composite filter according to claim 2, characterized in that: A pair of positioning blocks (9) are formed on both sides of the top of the side wall of the composite filter element (2), and a positioning notch that matches the positioning block (9) is formed on the inner wall of the top cover (1), and the positioning block (9) is plugged into the positioning notch.

4. A tap water composite filter according to claim 3, characterized in that: The top cover (1) is threadedly fitted onto the outside of the top of the filter housing (4).

5. The tap water composite filter according to claim 1, characterized in that: A hexagonal prism convex block is formed at the bottom of the brush bracket (3), and a hexagonal prism-shaped socket is formed at the top of the sewage valve (5), and the hexagonal prism convex block is plugged into the hexagonal prism-shaped socket.

6. The tap water composite filter according to claim 1, characterized in that: A dust cover (7) is provided at the bottom of the sewage drain switch (6).

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