Waterway device and water purifier
By designing a water circuit board structure with filter elements and fixed components in the water circuit device, the problem of impurity accumulation at the one-way valve is solved, ensuring stable water pressure, enabling normal start-up and stable operation of the water purification equipment, and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, impurities tend to accumulate at the one-way valve of the water circuit board, causing the water pressure to fail to reach the working pressure, resulting in the water purification equipment failing to start normally or frequently restarting, affecting user experience and shortening the equipment's lifespan.
The water circuit device is designed with a first water circuit plate, a second water circuit plate, a water outlet cylinder, a one-way valve, and a filter. The mounting holes are sealed by a fixing component to ensure that the filter is pressed tightly against the one-way valve inlet, preventing the accumulation of impurities, and the impurities can be removed and cleaned.
It effectively prevents the accumulation of impurities at the inlet of the one-way valve, ensures that the water pressure is maintained at the working pressure, and ensures that the water purification device starts up normally and operates stably, reducing the restart frequency and extending the service life of the equipment.
Smart Images

Figure CN224147875U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water purification equipment technology, and in particular to water circuit devices and water purifiers. Background Technology
[0002] In water purification equipment, the water circuit board plays an important role in raw water purification, wastewater discharge, and purified water output.
[0003] In existing technology, the water circuit board is formed by welding and fixing two plate-like structures together to form a water circuit. A one-way valve is installed at the water outlet of the water circuit to ensure that the purified water flows in one direction and prevent backflow from causing pollution, thus effectively ensuring the safety of water quality.
[0004] However, during the welding and manufacturing process of the water circuit board, impurities can easily fall into the water circuit. When these impurities accumulate at the check valve, they reduce the flow area of the purified water, which affects the water pressure. When the working pressure cannot be reached, the water purification equipment cannot start normally or will restart frequently, affecting the user's daily use and shortening the equipment's lifespan. Utility Model Content
[0005] The purpose of this utility model is to provide a water circuit device and a water purifier, which solves the problem in the prior art that impurities easily accumulate at the one-way valve inside the water circuit board, causing the water pressure to fail to reach the working pressure, resulting in the water purification equipment failing to start normally or frequently restarting, affecting the user's daily use and shortening the service life of the equipment.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] In a first aspect, this application provides a water system comprising:
[0008] First waterway plate;
[0009] The second water circuit board is fixedly connected to the first water circuit board and forms a clean water channel between the first water circuit board;
[0010] A water outlet cylinder is installed on the first water circuit board and communicates with the mounting hole of the second water circuit board; the water outlet cylinder is also communicated with the purified water channel.
[0011] A one-way valve is installed inside the water outlet cylinder;
[0012] A filter element is disposed in the water outlet cylinder and located at the inlet of the one-way valve;
[0013] A fixing component is detachably connected to the mounting hole, the fixing component being used to close the mounting hole and press the filter sheet against the one-way valve.
[0014] Optionally, the filter element is made of stainless steel.
[0015] Optionally, the fixing component includes:
[0016] The plug is inserted into the mounting hole;
[0017] A fixing part is provided on the plug and abuts against the filter to press the filter against the one-way valve.
[0018] Optionally, multiple fixing portions are distributed circumferentially around the filter.
[0019] Optionally, the end of the fixing part near the filter sheet is arc-shaped.
[0020] Optionally, the fixing component further includes:
[0021] A sealing ring is disposed on the plug and is sealed and fitted against the side wall of the mounting hole.
[0022] Optionally, the fixing component further includes:
[0023] A fixing piece is fixedly connected to the plug and also fixedly connected to the second water channel plate.
[0024] Optionally, the fixing plate is provided with a plurality of bolts that are threadedly connected to the second water channel plate.
[0025] Optionally, multiple processing components are sequentially distributed along the water flow direction on the water purification channel to purify the water.
[0026] Secondly, this application also provides a water purifier, which includes:
[0027] water pipe;
[0028] The water system device as described in any one of the first aspects is connected to the water pipe.
[0029] The beneficial effects of this utility model are:
[0030] Firstly, during installation, the first and second water circuit plates are welded together to form a purified water channel. A one-way valve and filter are placed inside the outlet cylinder, and then a fixing assembly is installed to seal the mounting hole. When in use, water enters the outlet cylinder from the purified water channel and flows out for user use. Impurities from welding and any impurities that may be present in the purified water are retained by the filter, allowing only purified water to pass through the one-way valve. Therefore, impurities do not accumulate at the inlet of the one-way valve, ensuring that the flow area of the purified water is not reduced. Furthermore, by disassembling the fixing assembly and removing the filter and one-way valve from the mounting hole, impurities can be promptly removed, ensuring that the water pressure remains at the working pressure. This allows the water circuit device to start normally and operate stably, reducing the possibility of frequent restarts, effectively improving the user experience, and extending the equipment's service life.
[0031] Secondly, this water purifier can effectively reduce the possibility of impurities accumulating in the water circuit affecting water pressure during use, so that the water pressure can be maintained under the required conditions, thereby ensuring that the water purifier can start normally and run continuously and stably, providing users with sufficient purified water, effectively improving the user experience and extending the service life of the water purifier. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the structure of the first water circuit board of the water purification device in this embodiment of the present invention;
[0033] Figure 2 This is a schematic diagram of the structure of the second water circuit board of the water purification device in this embodiment of the utility model;
[0034] Figure 3 This is a cross-sectional view of the water outlet cylinder, one-way valve, filter plate, and fixing assembly of the water purification device in this embodiment of the utility model.
[0035] Figure 4 This is a schematic diagram of the one-way valve, filter, and fixing components of the water purification device in this embodiment of the utility model.
[0036] In the picture:
[0037] 1. First water circuit board; 11. UF filter element; 12. PCB filter element; 13. Booster pump; 14. RO filter element; 15. Inlet cylinder; 16. Ultrafiltration drain cylinder; 17. Concentrate cylinder; 18. Water valve; 19. High-pressure switch; 2. Second water circuit board; 3. Outlet cylinder; 4. Check valve; 5. Filter disc; 6. Fixing assembly; 61. Plug; 611. Sealing ring groove; 62. Fixing part; 63. Fixing plate; 64. Bolt. Detailed Implementation
[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.
[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0041] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0042] This application discloses a water circuit device and a water purifier.
[0043] Reference Figures 1 to 4 The water circuit device includes a first water circuit plate 1, a second water circuit plate 2, a water outlet cylinder 3, a one-way valve 4, a filter element 5, and a fixing assembly 6. The second water circuit plate 2 is fixedly connected to the first water circuit plate 1 and forms a clean water channel between them; the water outlet cylinder 3 is disposed on the first water circuit plate 1 and communicates with the mounting hole of the second water circuit plate 2, and is connected to the clean water channel; the one-way valve 4 is disposed inside the water outlet cylinder 3; the filter element 5 is disposed on the water outlet cylinder 3 and located at the inlet of the one-way valve 4; the fixing assembly 6 is detachably connected to the mounting hole, and is used to seal the mounting hole and press the filter element 5 against the one-way valve 4.
[0044] Specifically, the first water channel plate 1 is plate-shaped with slots and other structures on its side. The second water channel plate 2 can fit against this side to seal the slots and holes. The edges of the first and second water channel plates 1 and 2 are welded together to form a well-sealed clean water channel between them. Filter elements, water valves 18, high-pressure switches 19, booster pumps 13, and other structures are arranged on the clean water channel. The water outlet cylinder 3 is located on the side of the first water channel plate 1 away from the second water channel plate 2. The water outlet cylinder 3 can be integrally formed with the first water channel plate 1 to ensure good overall sealing.
[0045] One end of the water outlet cylinder 3 is used for discharging purified water, and the other end corresponds to the mounting hole. The one-way valve 4 and the filter element 5 can be installed into the water outlet cylinder 3 through the mounting hole, which is sealed by the fixing component 6. The fixing component 6 can partially extend into the water outlet cylinder 3 and push the filter element 5 against the inlet of the one-way valve 4, thereby fixing the filter element 5 at the inlet of the one-way valve 4. The filter element 5 can filter impurities in the purified water, and the specific filtration accuracy can be achieved by selecting different specifications of filter elements 5 according to the requirements.
[0046] During installation, the first water channel plate 1 and the second water channel plate 2 are welded together to form a purified water channel. The one-way valve 4 and filter element 5 are placed inside the outlet cylinder 3, and then the fixing assembly 6 is installed to seal the mounting hole. When in use, water enters the outlet cylinder 3 from the purified water channel and flows out for user use. Impurities from welding and any impurities that may be present in the purified water are retained by the filter element 5, allowing only purified water to pass through the one-way valve 4. Therefore, impurities do not accumulate at the inlet of the one-way valve 4, ensuring that the flow area of the purified water is not reduced. Furthermore, by disassembling the fixing assembly 6, the filter element 5 and the one-way valve 4 can be removed from the mounting hole to promptly remove impurities, ensuring that the water pressure remains at the working pressure. This allows the water system to start normally and operate stably, reducing the possibility of frequent restarts, effectively improving the user experience, and extending the equipment's service life.
[0047] Optionally, filter element 5 is made of stainless steel.
[0048] Specifically, stainless steel has high rigidity and can withstand greater compressive force, enabling the fixing component 6 to push the filter element 5 to press against the one-way valve 4, thus ensuring good installation stability of the filter element 5. At the same time, stainless steel has good corrosion resistance and high hardness, so that impurities in the purified water will not damage the filter element 5 when purified water passes through, thus ensuring stable filtration performance.
[0049] Optionally, the fixing component 6 includes a plug 61 and a fixing part 62. The plug 61 is inserted into the mounting hole; the fixing part 62 is disposed on the plug 61 and abuts against the filter element 5 to press the filter element 5 against the one-way valve 4.
[0050] Specifically, the plug 61 is block-shaped and at least partially inserted into the mounting hole. The sidewall of the plug 61 is sealed to the wall of the mounting hole to ensure good overall sealing. A fixing part 62 is provided at the end of the plug 61 that is inserted into the mounting hole. The fixing part 62 can be elongated. The end of the fixing part 62 away from the plug 61 presses against the side of the filter element 5 to push the filter element 5 against the one-way valve 4.
[0051] By setting the plug 61 and the fixing part 62, it is only necessary to insert the plug 61 into the mounting hole and abut the fixing part 62 against the filter element 5 to push the filter element 5 against the one-way valve 4 to fix the filter element 5. This allows the clean water entering the one-way valve 4 to pass through the filter element 5 first. When it is necessary to clean the impurities, it is only necessary to remove the plug 61 and remove the impurities and filter element 5 together through the mounting hole.
[0052] Optionally, the fixing part 62 is distributed in multiple circumferentially around the filter 5.
[0053] Specifically, the width of the fixing part 62 is much smaller than the diameter of the filter element 5 to avoid the fixing part 62 blocking the filter pores of the filter element 5. Multiple fixing parts 62 are spaced apart to ensure that the filter element 5 is subjected to uniform force, so that the filter element 5 can be stably fixed at the inlet of the one-way valve 4. In this embodiment, two fixing parts 62 are arranged at intervals.
[0054] Optionally, the end of the fixing part 62 near the filter element 5 is arc-shaped.
[0055] Specifically, the end face of the fixing part 62 is arc-shaped, which reduces the contact area between the fixing part 62 and the filter sheet 5, thereby reducing the number of filter holes blocked by the fixing part 62, while also ensuring sufficient clamping force on the filter sheet 5.
[0056] Optionally, the fixing component 6 also includes a sealing ring. The sealing ring is disposed on the plug 61 and seals against the sidewall of the mounting hole.
[0057] Specifically, a sealing ring groove 611 is formed on the side wall of the plug 61. A sealing ring is filled in the sealing ring groove 611, and when the plug 61 is inserted into the mounting hole, the sealing ring can abut against the wall of the mounting hole, thereby ensuring that the plug 61 remains sealed after installation. In this embodiment, two sealing ring grooves 611 are provided at intervals, and a sealing ring is provided in each sealing ring groove 611.
[0058] Optionally, the fixing component 6 also includes a fixing piece 63. The fixing piece 63 is fixedly connected to the plug 61 and to the second water channel plate 2.
[0059] Specifically, the fixing piece 63 is located at the end of the plug 61 away from the fixing part 62. The two can be an integral structure, or they can be fixed together by snap-fit, adhesive, welding or threaded connection. The fixing piece 63 is disc-shaped or strip-shaped, and its size is larger than that of the plug 61. The edge of the fixing piece 63 is fixedly connected to the second water channel plate 2. The fixed connection can be achieved by snap-fit or bolt 64 connection.
[0060] By setting a fixing piece 63 on the plug 61, after the plug 61 is inserted into the mounting hole, the fixing piece 63 is fixedly connected to the second water circuit plate 2, thereby fixing the plug 61 in the mounting hole, thereby improving the installation stability of the plug 61 and ensuring that the plug 61 will not move.
[0061] Optionally, the fixing plate 63 is provided with a plurality of bolts 64 that are threadedly connected to the second water channel plate 2.
[0062] Specifically, the fixing plate 63 is long and narrow, the plug 61 is located in the middle of the fixing plate, and a bolt 64 is inserted through each end of the fixing plate 63. A connecting protrusion is provided on the side of the second water channel plate 2, and a threaded hole is provided in the connecting protrusion. The bolt 64 is threaded into the threaded hole.
[0063] The fixed plate and the second water circuit plate 2 are fixedly connected by multiple bolts 64. This ensures that the connection strength meets the requirements and also facilitates the quick disassembly of the plug 61, making it convenient to clean the mounting hole and the water outlet 3.
[0064] Optionally, multiple treatment components are sequentially distributed along the water flow direction in the water purification channel to purify the water.
[0065] Specifically, the treatment components include a UF filter element 11, a PCB filter element 12, a booster pump 13, and an RO filter element 14. The first water circuit board 1 is also equipped with an inlet cylinder 15, an ultrafiltration drain cylinder 16, a concentrate cylinder 17, and multiple water valves 18, all connected to the purified water channel. The inlet cylinder 15 is connected to a water supply device, such as a municipal water pipe. After the inlet cylinder 15 injects water into the purified water channel, the water first passes through the UF filter element 11 and is divided into two paths. One path, as ultrafiltration water, is discharged through the ultrafiltration drain cylinder 16, while the other path flows into the PCB filter element 12. After pre-filtering with activated carbon, the water is pressurized by the booster pump 13 and then enters the RO filter element 14 for further filtration to remove calcium, magnesium ions, heavy metals, and other substances. The wastewater is discharged through the concentrate cylinder 17. The water passing through the RO filter element 14 then enters the post-activated carbon filter of the PCB filter element 12 for further filtration, and finally enters the outlet cylinder 3, passing through a one-way valve 4 before being discharged. A high-pressure switch 19 is installed at the water outlet cylinder 3. The high-pressure switch 19 needs to meet certain pressure conditions to start. When the pressure is not met, such as when impurities accumulate in front of the check valve 4 or when a leak occurs, the water pressure drops and the high-pressure switch 19 may remain closed until the water pressure meets the conditions and starts automatically, resulting in frequent restarts. However, when the filter 5 is installed, it can ensure that the water pressure at the check valve 4 remains stable, so that the high-pressure switch 19 will continue to open as long as the pressure condition is met.
[0066] The water purifier includes water pipes and the aforementioned water circuit device. The water circuit device is connected to the water pipes.
[0067] This water purifier effectively reduces the possibility of impurities accumulating in the water circuit affecting water pressure, ensuring that the water pressure is maintained at the required level. This guarantees that the water purifier can start normally and operate stably, providing users with sufficient purified water, effectively improving the user experience and extending the lifespan of the water purifier.
[0068] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A waterway device, characterized by, include: First waterway plate (1); The second water channel plate (2) is fixedly connected to the first water channel plate (1) and forms a clean water channel between the first water channel plate (1); A water outlet cylinder (3) is installed on the first water circuit plate (1) and communicates with the mounting hole of the second water circuit plate (2). The water outlet cylinder (3) is also communicated with the purified water channel. A one-way valve (4) is installed inside the water outlet cylinder (3); The filter element (5) is disposed in the water outlet cylinder (3) and located at the inlet of the one-way valve (4); A fixing component (6) is detachably connected to the mounting hole. The fixing component (6) is used to close the mounting hole and press the filter (5) against the one-way valve (4).
2. The waterway device of claim 1, wherein The filter element (5) is made of stainless steel.
3. The waterway device of claim 1, wherein The fixing component (6) includes: A plug (61) is inserted into the mounting hole; A fixing part (62) is provided on the plug (61) and abuts against the filter (5) to press the filter (5) against the one-way valve (4).
4. The waterway device of claim 3, wherein The fixing part (62) is distributed in multiple circumferentially around the filter (5).
5. The waterway device of claim 3, wherein The end of the fixing part (62) near the filter (5) is arc-shaped.
6. The waterway device of claim 3, wherein The fixing component (6) also includes: A sealing ring is provided on the plug (61) and is sealed to the side wall of the mounting hole.
7. The waterway device of claim 3, wherein The fixing component (6) also includes: The fixing piece (63) is fixedly connected to the plug (61) and fixedly connected to the second water channel plate (2).
8. The water routing device of claim 7, wherein, The fixing plate (63) is threaded with multiple bolts (64) that are threaded to the second water channel plate (2).
9. The water route apparatus according to any one of claims 1 to 8, characterized by Multiple treatment components are distributed sequentially along the water flow direction in the water purification channel to purify the water.
10. A water purifier characterized by include: water pipe; The water system device as described in any one of claims 1 to 9 is connected to the water pipe.