A self-cleaning scale-preventing kitchen faucet

By introducing a liquid storage tank and spray nozzle into the kitchen faucet, citric acid solution is used to automatically dissolve limescale and filter screen installation is simplified, solving the problem of cumbersome cleaning of traditional faucets and achieving efficient automatic cleaning and easy disassembly.

CN224565353UActive Publication Date: 2026-07-28NANAN JINGXIN HARDWARE PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANAN JINGXIN HARDWARE PROD CO LTD
Filing Date
2025-09-12
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Existing kitchen faucets require users to manually disassemble parts for soaking or scrubbing after limescale buildup, which is cumbersome and time-consuming, especially when the limescale is stubborn, making disassembly difficult and cleaning incomplete.

Method used

A self-cleaning and scale-preventing kitchen faucet was designed. By setting a liquid storage tank and a spray head inside the faucet, it uses citric acid solution to mix with water flow to form clean water, which automatically dissolves limescale. The installation and removal of the filter screen is simplified by a sliding fixing component.

Benefits of technology

It achieves automatic cleaning inside the faucet, improves cleaning efficiency, simplifies the process of disassembling and assembling the filter, solves the tedious and time-consuming cleaning problem of traditional faucets after limescale buildup, and ensures thorough cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to faucet technical field discloses a kitchen faucet of self -cleaning scale prevention from one side, including faucet body, the faucet body side wall fixedly connected with the water jet head, the faucet body side wall is provided with cleaning assembly, the water jet head side wall fixedly connected with the mounting sleeve, the mounting sleeve below is provided with the filter screen, the mounting sleeve inside is provided with fixed component, the cleaning assembly includes the liquid storage tank, and the liquid storage tank inside is provided with citric acid solution, in the utility model, through pressing the air bag, makes the air pressure in the liquid storage tank to rise, under the action of air pressure, the citric acid solution in the liquid storage tank flows to the inside of faucet body through the delivery pipe, mixes with the main water flow and sprays from the water jet head, makes the citric acid solution mix with the water flow, forms the clean water with descaling function, flushes the inside pipe of faucet, dissolves the incrustation and prevents the deposition, improves the cleaning efficiency of faucet through the above structure.
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Description

Technical Field

[0001] This utility model relates to the field of faucet technology, and in particular to a self-cleaning and scale-preventing kitchen faucet. Background Technology

[0002] In the field of modern kitchen equipment, kitchen faucets are frequently used appliances, and their anti-scaling and cleaning performance directly affects user experience and service life. With differences in water hardness and long-term use, scale easily accumulates in the internal pipes, filters, and water outlet parts of faucets, leading to poor water flow, reduced water output efficiency, and even bacterial growth that affects water hygiene. Therefore, developing kitchen faucets with self-cleaning and anti-scaling functions has become an important technological direction for solving the above problems and improving product practicality.

[0003] In existing technologies, the anti-scaling design of kitchen faucets mostly relies on physical structure optimization or external cleaning methods. For example, some products reduce scale adhesion by using pipes with smooth inner walls, or install a removable aerator at the water outlet for easy manual cleaning; other technologies use magnetized water flow to change the structure of calcium and magnesium ions, thereby inhibiting scale formation.

[0004] However, existing traditional faucets require users to manually disassemble parts for soaking or scrubbing after limescale buildup, which is cumbersome and time-consuming. Especially when limescale is stubborn, disassembly is difficult and cleaning is not thorough. Therefore, a self-cleaning and scale-preventing kitchen faucet is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a self-cleaning and scale-preventing kitchen faucet, aiming to improve the problem that the existing technology requires users to manually disassemble parts for soaking or scrubbing, which is cumbersome and time-consuming.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A self-cleaning and scale-preventing kitchen faucet includes a faucet body, a spray head fixedly connected to the side wall of the faucet body, a cleaning component provided on the side wall of the faucet body, an installation sleeve fixedly connected to the side wall of the spray head, a filter screen provided below the installation sleeve, and a fixing component provided inside the installation sleeve.

[0008] The cleaning assembly includes a storage tank containing citric acid solution. The side wall of the storage tank is fixedly connected to the side wall of the faucet body. An inlet pipe is fixedly connected to the side wall of the storage tank, and a piston is fixedly connected to one end of the inlet pipe. A connecting pipe is fixedly connected inside the storage tank, and an air bladder is fixedly connected to the upper end of the connecting pipe. A delivery pipe is fixedly connected to the bottom of the storage tank, and one end of the delivery pipe is fixedly connected to the inside of the faucet body.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes an insert block and a fixing sleeve. The side wall of the insert block is fixedly connected to the side wall of the filter screen, the side wall of the fixing sleeve is fixedly connected to the inside of the mounting sleeve, and the side wall of the insert block is slidably connected to the inside of the fixing sleeve.

[0011] As a further description of the above technical solution:

[0012] The connecting pipe is provided with a second one-way valve on its side wall, and the conveying pipe is provided with a first one-way valve on its side wall.

[0013] As a further description of the above technical solution:

[0014] The fixed sleeve is slidably connected to the inside of the fixed sleeve, and a clamping block is fixedly connected to the side wall of the sliding sleeve. The clamping block engages with the insertion block, and the side wall of the clamping block is slidably connected inside the fixed sleeve.

[0015] As a further description of the above technical solution:

[0016] A connecting block is fixedly connected inside the sliding sleeve, and a rotating plate is rotatably connected to the side wall of the connecting block.

[0017] As a further description of the above technical solution:

[0018] A retaining plate is fixedly connected inside the fixed sleeve, and a sliding rod is fixedly connected to one end of the rotating plate. The side wall of the sliding rod is slidably connected between the retaining plates.

[0019] As a further description of the above technical solution:

[0020] A spring is provided inside the fixing sleeve. One end of the spring is fixedly connected inside the fixing sleeve, and the other end of the spring is fixedly connected to the side wall of the connecting block.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, pressing the air bladder increases the air pressure inside the storage tank. Under the action of air pressure, the citric acid solution in the storage tank flows into the faucet body through the delivery pipe. After mixing with the main water flow, it is sprayed out from the spray head, making the citric acid solution mix with the water flow to form clean water with descaling function. This flushes the internal pipes of the faucet, dissolves limescale, and prevents its deposition. This solves the problem that some kitchen faucets require users to manually disassemble parts for soaking or scrubbing after limescale buildup, which is cumbersome and time-consuming. Especially when the limescale is stubborn, disassembly is difficult and cleaning is not thorough. The above structure improves the cleaning efficiency of the faucet.

[0023] 2. In this utility model, by pressing the filter screen inside the fixed sleeve, the sliding rod is disengaged from the slot of the clamping plate. The spring rebounds and pushes the sliding sleeve and clamping block outward, releasing the engagement of the insert block. The filter screen can then be removed for cleaning. This solves the problem that some kitchen faucets have internal filter screens connected by screws, which require external tools when disassembling and have low disassembly efficiency. The above structure improves the efficiency of filter screen disassembly and assembly. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a self-cleaning and scale-preventing kitchen faucet proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the cleaning component of a self-cleaning and scale-preventing kitchen faucet proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the structure of a filter screen for a self-cleaning and scale-preventing kitchen faucet proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the internal structure of the mounting sleeve for a self-cleaning and scale-proof kitchen faucet proposed in this utility model.

[0028] Figure 5 This is a schematic diagram of the fixing component of a self-cleaning and scale-preventing kitchen faucet proposed in this utility model.

[0029] Legend:

[0030] 1. Faucet body; 2. Spray head; 3. Liquid reservoir; 4. Inlet pipe; 5. Piston; 6. Connecting pipe; 7. Airbag; 8. Delivery pipe; 9. One-way valve 1; 10. One-way valve 2; 11. Mounting sleeve; 12. Filter screen; 13. Insert block; 14. Fixing sleeve; 15. Sliding sleeve; 16. Clamping block; 17. Connecting block; 18. Rotating plate; 19. Slide rod; 20. Clamping plate; 21. Spring. Detailed Implementation

[0031] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-2The present invention provides an embodiment of a self-cleaning and scale-preventing kitchen faucet, comprising a faucet body 1, which carries and guides water flow. A spray head 2 is fixedly connected to the side wall of the faucet body 1, which directs water flow to a designated area for rinsing. A cleaning component is provided on the side wall of the faucet body 1 to effectively reduce scale buildup and extend the faucet's service life. An installation sleeve 11 is fixedly connected to the side wall of the spray head 2, and a filter screen 12 is provided below the installation sleeve 11. The filter screen 12 is used to filter impurities in the water, such as mud, sand, and rust, to prevent these impurities from entering the faucet or being sprayed out and affecting water quality. A fixing component is provided inside the installation sleeve 11 to stabilize the filter screen 12 and prevent it from shifting or falling off under the impact of water flow, ensuring that the filter screen 12 can continue to perform its filtering function.

[0033] The cleaning component includes a reservoir 3 containing a citric acid solution. Citric acid dissolves limescale and reacts chemically with limescale components such as calcium carbonate and magnesium carbonate inside the faucet, breaking them down into soluble substances, thus removing limescale. The reservoir 3 is fixedly connected to the side wall of the faucet body 1. An inlet pipe 4 is also fixedly connected to the side wall of the reservoir 3, supplying the reservoir with citric acid solution. A piston 5 is fixedly connected to one end of the inlet pipe 4 to seal it and prevent leakage of the citric acid solution from the reservoir 3. A connecting pipe 6 is fixedly connected inside the reservoir 3, with an air bladder 7 fixedly connected to its upper end. The air bladder 7 deforms when pressed, squeezing out internal air. The solution is introduced into the storage tank 3, thereby increasing the air pressure inside the storage tank 3 and providing power for the delivery of citric acid solution. A delivery pipe 8 is fixedly connected to the bottom of the storage tank 3. The delivery pipe 8 is used to deliver the citric acid solution in the storage tank 3 to the inside of the faucet body 1. One end of the delivery pipe 8 is fixedly connected to the inside of the faucet body 1, so that the citric acid solution can be accurately injected into the water flow channel and fully mixed with the water flow to form clean water. A one-way valve 2 10 is provided on the side wall of the connecting pipe 6. The function of the one-way valve 2 10 is to prevent the solution and air in the storage tank 3 from flowing back and to ensure that the air pressure can stably drive the solution flow. A one-way valve 1 9 is provided on the side wall of the delivery pipe 8. The function of the one-way valve 1 9 is to prevent the water in the faucet from flowing back into the storage tank 3 and to ensure the cleanliness and effectiveness of the citric acid solution.

[0034] Reference Figures 3-5The fixing assembly includes a plug 13 and a fixing sleeve 14. The plug 13 provides a structural carrier for the filter screen 12 to connect with the fixing sleeve 14, thus fixing the filter screen 12 inside the mounting sleeve 11. This ensures stable installation of the filter screen 12 and prevents it from shaking under the impact of water flow. The side wall of the fixing sleeve 14 is fixedly connected to the inside of the mounting sleeve 11, and the side wall of the plug 13 is slidably connected to the inside of the fixing sleeve 14. The plug 13 slides in conjunction with the fixing sleeve 14, facilitating the installation and removal of the filter screen 12 and allowing for quick and easy installation and removal. Insertion or removal: A sliding sleeve 15 is slidably connected inside the fixed sleeve 14. A clamping block 16 is fixedly connected to the side wall of the sliding sleeve 15. The clamping block 16 engages with the insert block 13. The clamping block 16 is used to clamp the insert block 13 under the action of the sliding sleeve 15, firmly fixing the filter screen 12 inside the mounting sleeve 11, preventing the filter screen 12 from falling off, and ensuring that the filter screen 12 stably performs its filtering function. The side wall of the clamping block 16 is slidably connected inside the fixed sleeve 14. The clamping block 16 moves in conjunction with the fixed sleeve 14 to achieve precise control of the clamping force and position of the clamping block 16. This allows the clamping block 16 to accurately engage or disengage the insert block 13. A connecting block 17 is fixedly connected inside the sliding sleeve 15, and a rotating plate 18 is rotatably connected to the side wall of the connecting block 17. A locking plate 20 is fixedly connected inside the fixed sleeve 14. A sliding rod 19 is fixedly connected to one end of the rotating plate 18, and the side wall of the sliding rod 19 is slidably connected between the locking plates 20. The sliding rod 19 cooperates with the locking plates 20 to perform sliding and engaging movements, achieving precise control over the rotation and locking state of the rotating plate 18. This makes the fixing and unlocking operations of the fixed components more reliable. The fixed sleeve 14 is internally equipped with... There is a spring 21. The function of the spring 21 is to provide elastic force for the sliding sleeve 15 to return to its original position after it is moved by force, so that the sliding sleeve 15 can automatically return to its initial position when no external force is applied. One end of the spring 21 is fixedly connected to the inside of the fixed sleeve 14, and the other end of the spring 21 is fixedly connected to the side wall of the connecting block 17. The spring 21 cooperates with the connecting block 17 and is compressed or stretched when the sliding sleeve 15 moves the connecting block 17. When the external force disappears, the spring 21 pushes the connecting block 17 and the sliding sleeve 15 to return to their original positions, thereby achieving the effect of the clamping block 16 automatically clamping the insert block 13.

[0035] Working principle: When the faucet needs cleaning, citric acid solution is injected into the storage tank 3 through the inlet pipe 4. The user presses the air bladder 7, and the air inside the air bladder 7 enters the upper part of the storage tank 3 through the connecting pipe 6, increasing the air pressure inside the tank. Under the action of air pressure, the citric acid solution in the storage tank 3 flows into the faucet body 1 through the delivery pipe 8, mixes with the main water flow, and is sprayed out from the spray head 2, so that the citric acid solution and water flow are mixed to form clean water with descaling function, which washes the filter screen 12 and the internal pipes of the faucet, dissolving scale and preventing deposition. One-way valve 9 ensures that the solution can only flow from the storage tank 3 to the faucet body 1, preventing water backflow. One-way valve 10 prevents air backflow when the air bladder 7 is released, maintaining stable air pressure in the storage tank 3. When installing the filter screen 12, insert the insert block 13 on the side wall of the filter screen 12 into the fixing sleeve 14 inside the mounting sleeve 11. The insert block 13 pushes the clamping block 16 and the sliding sleeve 15 to slide inward into the fixing sleeve 14, compressing the spring 21. The sliding sleeve 15 drives the connecting block 17 to move, causing the rotating plate 18 to rotate around the connecting block 17. The slide rod 19 at the other end of the rotating plate 18 slides along the inclined surface of the clamping plate 20 and is engaged in the slot, thereby locking the clamping block 16 onto the insert block 13 and completing the fixing effect of the filter screen 12. When disassembly is required, press the filter screen 12 inward into the fixing sleeve 14 to disengage the slide rod 19 from the slot of the clamping plate 20. The spring 21 rebounds and pushes the sliding sleeve 15 and the clamping block 16 outward, releasing the engagement of the insert block 13. The filter screen 12 can then be removed for cleaning.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cleaning and scale-resistant kitchen faucet, comprising a faucet body (1), characterized in that: A spray head (2) is fixedly connected to the side wall of the faucet body (1), a cleaning component is provided on the side wall of the faucet body (1), an installation sleeve (11) is fixedly connected to the side wall of the spray head (2), a filter screen (12) is provided below the installation sleeve (11), and a fixing component is provided inside the installation sleeve (11). The cleaning assembly includes a storage tank (3) containing citric acid solution. The side wall of the storage tank (3) is fixedly connected to the side wall of the faucet body (1). An inlet pipe (4) is fixedly connected to the side wall of the storage tank (3). A piston (5) is fixedly connected to one end of the inlet pipe (4). A connecting pipe (6) is fixedly connected inside the storage tank (3). An air bladder (7) is fixedly connected to the upper end of the connecting pipe (6). A delivery pipe (8) is fixedly connected to the bottom of the storage tank (3). One end of the delivery pipe (8) is fixedly connected inside the faucet body (1).

2. The self-cleaning and scale-preventing kitchen faucet according to claim 1, characterized in that: The fixing component includes a plug (13) and a fixing sleeve (14). The side wall of the plug (13) is fixedly connected to the side wall of the filter screen (12), and the side wall of the fixing sleeve (14) is fixedly connected inside the mounting sleeve (11). The side wall of the plug (13) is slidably connected inside the fixing sleeve (14).

3. A self-cleaning, scale-resistant kitchen faucet according to claim 1, characterized in that: The connecting pipe (6) is provided with a one-way valve two (10) on its side wall, and the conveying pipe (8) is provided with a one-way valve one (9) on its side wall.

4. A self-cleaning, scale-resistant kitchen faucet according to claim 2, characterized in that: The fixed sleeve (14) is slidably connected to a sliding sleeve (15), and a clamping block (16) is fixedly connected to the side wall of the sliding sleeve (15). The clamping block (16) engages with the insert block (13), and the side wall of the clamping block (16) is slidably connected inside the fixed sleeve (14).

5. A self-cleaning, scale-resistant kitchen faucet according to claim 4, characterized in that: The sliding sleeve (15) is fixedly connected to a connecting block (17), and the side wall of the connecting block (17) is rotatably connected to a rotating plate (18).

6. A self-cleaning, scale-resistant kitchen faucet according to claim 5, characterized in that: The fixed sleeve (14) is internally fixedly connected to a clamping plate (20), and one end of the rotating plate (18) is fixedly connected to a sliding rod (19). The side wall of the sliding rod (19) is slidably connected between the clamping plates (20).

7. A self-cleaning, scale-preventing kitchen faucet according to claim 5, characterized in that: A spring (21) is provided inside the fixed sleeve (14). One end of the spring (21) is fixedly connected inside the fixed sleeve (14), and the other end of the spring (21) is fixedly connected to the side wall of the connecting block (17).