Water mixing valve with filtering structure
By setting hot water chambers and cold water chambers on both sides of the mixing valve body and installing a detachable filter device on the front, the problem of inaccurate water temperature regulation and water quality of existing mixing valves is solved, achieving precise regulation and high-quality water, suitable for kitchens and bathrooms.
Patent Information
- Application Number
- CN202520207051.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing mixing valves have a simple structure, inaccurate water temperature regulation, and unfiltered hot and cold water, containing impurities and chemicals that can affect health.
The design incorporates a mixing valve with a filter structure. Hot and cold water chambers are located on both sides of the valve body, with a cold water nozzle in the middle for mixing. A filter device is movably installed on the front side, allowing hot and cold water to enter the filter cartridge for filtration. The filter device is detachable for easy replacement, and a display screen on the top shows the water temperature and filtration status.
It achieves precise water temperature regulation and improves water quality. The filter device is easy to replace, which improves the user's ease of use. It is suitable for kitchens and bathrooms.
Smart Images

Figure CN223662649U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bathroom valve equipment technology, and more specifically to a mixing valve with a filter structure. Background Technology
[0002] A mixing valve is a valve used to mix hot and cold water. The valve body includes a hot water inlet, a cold water inlet, and a mixing outlet. Hot and cold water meet inside the valve body and are mixed under the adjustment of the valve core before being discharged. Users can adjust the temperature of the mixed water as needed. They are commonly used in bathrooms and kitchens. However, most existing mixing valves have a simple structure, only allowing for basic hot and cold water adjustment. Most lack a temperature display, relying on user comfort to adjust the temperature, which is inaccurate and inconvenient. Furthermore, the hot and cold water from the water heater and tap water pipes is unfiltered, often containing impurities and other chemicals. This can contaminate skin and food during bathing and food washing, posing a health risk. Therefore, we propose a mixing valve with a filter structure. First, we improve the valve's structure to make temperature adjustment easier. Second, we add a filter device to effectively filter the hot and cold water, improving water quality.
[0003] To improve water quality and effectively filter the mixed hot and cold water, thereby enhancing the practicality of the equipment, Chinese Patent (Authorization Announcement No.: CN222085221U) discloses an intelligent mixing valve device. This utility model includes a mixing valve with a hot water pipe fixedly connected to its left outer surface. An adjustment interface is fixedly connected to the front outer surface of the mixing valve, and a mixing ratio scale is fixedly connected to the outer surface of the adjustment interface. A cold water pipe is fixedly connected to the right outer surface of the mixing valve. An adjustment handle is rotatably connected to the end of the adjustment interface furthest from the mixing valve. Water enters the mixing valve, mixes, and then enters the outlet pipe. The mixed water is then filtered by a filter plate inside the outlet pipe, removing impurities before flowing into the external equipment. This effectively reduces the risk of scale buildup and clogging of the external equipment, thus significantly improving the quality of the mixed water.
[0004] The solution still has some shortcomings in application. Since the filter element built into the filter device is a consumable, it needs to be replaced and cleaned after a period of use. Therefore, the filter device needs to be easy to disassemble, otherwise the filtration effect may decrease or even bacteria may grow. At the same time, when using the mixing valve with the filter device, the filter element not only needs to be replaced, but also needs to be prompted according to the usage. Otherwise, the filter element may not be replaced in time, which may affect the water quality. Therefore, the structure of the mixing valve needs to be improved so that it can not only achieve precise temperature adjustment, but also have a filtration function and a good filtration effect, effectively improving water quality. Utility Model Content
[0005] This utility model discloses a mixing valve with a filter structure, the main purpose of which is to overcome the above-mentioned shortcomings and disadvantages of the prior art:
[0006] The technical solution adopted in this utility model is as follows:
[0007] A mixing valve with a filtration structure includes a mixing valve body and a filtration device. The mixing valve body has a hot water chamber and a cold water chamber on its left and right sides, respectively. A cold water nozzle is provided in the middle of the mixing valve body. The inlet end of the cold water nozzle is connected to the cold water chamber. A negative pressure chamber is provided at the front of the cold water nozzle. The bottom of the negative pressure chamber is connected to the outlet end of the cold water nozzle and one side is connected to the hot water chamber. A first outlet pipe is provided on the front side of the mixing valve body. An inlet pipe and an outlet are provided on the front and rear sides of the filtration device, respectively. The inlet pipe is adapted to be screwed onto the first outlet pipe. The filtration device has an inlet chamber with a filter cylinder inside. A second outlet pipe is provided at the top of the filter cylinder and extends outward to the outlet.
[0008] Furthermore, the hot water chamber and the cold water chamber are respectively provided with a hot water inlet and a high-pressure cold water inlet, and the hot water chamber and the cold water chamber are respectively provided with a hot water knob and a cold water knob on their outer sides.
[0009] Furthermore, a temperature control knob is provided on the rear side of the cold water nozzle, which is used to control the water output of the cold water nozzle.
[0010] Furthermore, a fastening ring is provided on the inner side of the upper part of the water inlet chamber, and a corresponding fastening ring is provided on the filter cylinder, with the fastening ring being movably embedded in the fastening ring.
[0011] Furthermore, the bottom of the filter cylinder is provided with a fastening bolt, which extends outward to the outside of the bottom of the water inlet chamber, and the bottom of the water inlet chamber is provided with a fastening nut.
[0012] Furthermore, the filter cartridge has a built-in filter assembly and several through holes arranged on its side wall.
[0013] Furthermore, the top of the filtration device is equipped with a display screen and a circuit board, the display screen being used to show the water temperature and the usage status of the filtration components.
[0014] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:
[0015] This invention features a mixing valve body with hot and cold water chambers on both sides and a cold water nozzle in the middle. Cold water is sprayed through the nozzle into the negative pressure chamber to mix with the hot water, achieving hot and cold water mixing. The water temperature can be adjusted by regulating the flow rate of the cold water through the nozzle. Next, a filter device is movably mounted on the front of the mixing valve body. Hot and cold water enter the inlet chamber of the filter device and then pass through the through-hole of the filter cylinder for filtration. Finally, the filtered hot and cold water flows through a second outlet pipe to the outlet for user use, effectively improving water quality. The filter cylinder is detachably built into the filter chamber and can be easily replaced using the fastening bolts and nuts at the bottom. A display screen on the top of the filter device shows the water temperature and the status of the filter components, further enhancing user convenience. This invention boasts a novel structure, ingenious design, precise water temperature regulation, and high water quality, making it suitable for kitchens and bathrooms and worthy of widespread adoption. Attached Figure Description
[0016] Figure 1 This is a top view of the structure of this utility model.
[0017] Figure 2 This is a side view of the filter device of this utility model.
[0018] Figure 3 This is a top view of the filter device of this utility model. Detailed Implementation
[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0020] like Figures 1 to 3As shown, a mixing valve with a filtration structure includes a mixing valve body 1 and a filtration device 2. The mixing valve body 1 has a hot water chamber 3 and a cold water chamber 4 on its left and right sides, respectively. A cold water nozzle 5 is provided in the middle of the mixing valve body 1. The inlet end of the cold water nozzle 5 is connected to the cold water chamber 4. A negative pressure chamber 6 is provided at the front of the cold water nozzle 5. The bottom of the negative pressure chamber 6 is connected to the outlet end of the cold water nozzle 5 and one side is connected to the hot water chamber 3. A first water outlet pipe 7 is provided on the front side of the mixing valve body 1. The filtration device 2 has an inlet pipe 21 and an outlet 22 on its front and rear sides, respectively. The inlet pipe 21 is adapted to be screwed into the first water outlet pipe 7. The filtration device 2 has an inlet chamber 8. A filter cylinder 9 is built into the inlet chamber 8. A second water outlet pipe 10 is provided at the top of the filter cylinder 9. The second water outlet pipe 10 extends outward to the outlet 22.
[0021] Furthermore, the hot water chamber 3 and the cold water chamber 4 are respectively provided with a hot water inlet 31 and a high-pressure cold water inlet 41, and the hot water chamber 3 and the cold water chamber 4 are respectively provided with a hot water knob 32 and a cold water knob 42 on their outer sides.
[0022] Furthermore, a temperature control knob 51 is provided on the rear side of the cold water nozzle 5, which is used to control the water output of the cold water nozzle 5.
[0023] Furthermore, a fastening ring 81 is provided on the inner side of the upper part of the water inlet chamber 8, and a corresponding fastening ring is provided on the filter cylinder 9, with the fastening ring being movably embedded in the fastening ring 81.
[0024] Furthermore, the bottom of the filter cylinder 9 is provided with a fastening bolt 91, which extends outward to the outer side of the bottom of the water inlet chamber 8, and the bottom of the water inlet chamber 8 is provided with a fastening nut 11.
[0025] Furthermore, the filter cylinder 9 has a built-in filter assembly (not shown in the schematic diagram due to viewing angle) and its side wall is provided with several through holes 92.
[0026] Furthermore, the top of the filter device 2 is equipped with a display screen 12 and a circuit board (not shown in the schematic diagram due to viewing angle). The display screen 12 is used to display the water temperature and the usage status of the filter components.
[0027] [Example]
[0028] First, hot water and cold water enter the hot water chamber 3 and cold water chamber 4 respectively through the hot water inlet 31 and the high-pressure cold water inlet 41. The cold water in the cold water chamber 4 is then sprayed into the negative pressure chamber 6 through the cold water nozzle 5. At the same time, hot water also flows into the negative pressure chamber 6 and mixes with the cold water. After mixing, the hot and cold water is sprayed forward to the first water outlet pipe 7. Then, the water inlet pipe 21 of the filter device 2 is movably screwed into the first water outlet pipe 7, and the hot and cold water are sprayed into the water inlet chamber 8 of the filter device 2. The hot and cold water in the water inlet chamber 8 enters the filter through the through hole 92 on the side wall of the filter cylinder 9. The filter assembly inside the filter cylinder 9 filters the hot and cold water. Finally, the filtered hot and cold water is output from the outlet 22, completing the filtration process. During use, the temperature of the hot and cold water can be seen on the display screen 12 on the top of the filter device 2, and the temperature can be adjusted by the temperature control knob 51. The display screen 12 also shows the usage status of the filter assembly inside the filter cylinder, allowing for timely replacement. Replacement is very simple; just unscrew the fastening nut 11 from the fastening bolt 91 and remove the filter cylinder 9 from the bottom of the water inlet chamber 8.
[0029] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:
[0030] This invention features a mixing valve body with hot and cold water chambers on both sides and a cold water nozzle in the middle. Cold water is sprayed through the nozzle into the negative pressure chamber to mix with the hot water, achieving hot and cold water mixing. The water temperature can be adjusted by regulating the flow rate of the cold water through the nozzle. Next, a filter device is movably mounted on the front of the mixing valve body. Hot and cold water enter the inlet chamber of the filter device and then pass through the through-hole of the filter cylinder for filtration. Finally, the filtered hot and cold water flows through a second outlet pipe to the outlet for user use, effectively improving water quality. The filter cylinder is detachably built into the filter chamber and can be easily replaced using the fastening bolts and nuts at the bottom. A display screen on the top of the filter device shows the water temperature and the status of the filter components, further enhancing user convenience. This invention boasts a novel structure, ingenious design, precise water temperature regulation, and high water quality, making it suitable for kitchens and bathrooms and worthy of widespread adoption.
[0031] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.
Claims
1. A mixing valve with a filtering structure, characterized in that: The device includes a mixing valve body and a filter device. The mixing valve body has a hot water chamber and a cold water chamber on its left and right sides, respectively. A cold water nozzle is located in the middle of the mixing valve body. The inlet end of the cold water nozzle is connected to the cold water chamber. A negative pressure chamber is located at the front of the cold water nozzle. The bottom of the negative pressure chamber is connected to the outlet end of the cold water nozzle and one side is connected to the hot water chamber. A first water outlet pipe is located on the front side of the mixing valve body. A water inlet pipe and a water outlet are located on the front and rear sides of the filter device, respectively. The water inlet pipe is adapted to be screwed onto the first water outlet pipe. The filter device has a water inlet chamber, in which a filter cylinder is built. A second water outlet pipe is located at the top of the filter cylinder and extends outward to the water outlet.
2. A mixing valve with a filter structure according to claim 1, characterized in that: The hot water chamber and the cold water chamber are respectively provided with a hot water inlet and a high-pressure cold water inlet, and the hot water chamber and the cold water chamber are respectively provided with a hot water knob and a cold water knob on their outer sides.
3. A mixing valve with a filter structure according to claim 1, characterized in that: A temperature control knob is provided on the rear side of the cold water nozzle, which is used to control the water output of the cold water nozzle.
4. A mixing valve with a filter structure according to claim 1, characterized in that: A fastening ring is provided on the inner side of the upper part of the water inlet chamber, and a corresponding fastening ring is provided on the filter cylinder. The fastening ring is movably embedded in the fastening ring.
5. A mixing valve with a filter structure according to claim 1, characterized in that: The bottom of the filter cylinder is provided with a fastening bolt, which extends outward to the outside of the bottom of the water inlet chamber, and the bottom of the water inlet chamber is provided with a fastening nut.
6. A mixing valve with a filter structure according to claim 1, characterized in that: The filter cartridge has a built-in filter assembly and several through holes on its side wall.
7. A mixing valve with a filter structure according to claim 1, characterized in that: The filter device is equipped with a display screen and a circuit board on top. The display screen is used to show the water temperature and the usage status of the filter components.
Citation Information
Patent Citations
Intelligent water mixing valve device
CN222085221U