Mounting structure of dispensing valve and waterway board and water purifier with same
With the design of female and male interfaces, the distribution valve can be directly plugged into the water circuit board. Combined with the limit plate and sealing ring, it solves the problem of complex connection between the distribution valve and the water circuit board in water purifiers, achieves high integration and stable connection, and reduces cost and maintenance difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KEMFLO (NANJING) ENVIRONMENTAL TECHNOLOGY CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-08-04
AI Technical Summary
The existing installation structure of the distribution valve and water circuit board in water purifiers has problems such as large space occupation, many parts, complex connection, poor sealing reliability, and difficult maintenance, which makes it difficult to meet the technical development requirements of miniaturization, integration and reliability.
The design adopts both female and male interfaces, allowing the distribution valve to be directly plugged into the water circuit board and connected to the water circuit board interface via connectors. Combined with the design of the limit plate and sealing ring, a stable connection is ensured and the connection structure is simplified.
It achieves a highly integrated connection between the distribution valve and the water circuit board, saving space, reducing usage and maintenance costs, improving the stability and sealing of the connection, and simplifying the assembly process.
Smart Images

Figure CN224592732U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of water purification equipment, specifically relating to an installation structure of a distribution valve and a water circuit board, and a water purifier having the same. Background Technology
[0002] To reduce the space occupied by water pipes and simplify the complexity of pipe layout, water purifier manufacturers are increasingly using manifolds to replace traditional pipe connections in their internal water circuit structure. In this case, if a distribution valve is required in the water system, the question arises of how to connect the distribution valve to the manifold.
[0003] In the existing technology, the installation structure of the distribution valve and the water circuit board mainly adopts a split design. The distribution valve body and the water circuit board are arranged separately and connected by multiple connecting pipes. The entire system is fixed and connected by a large number of fasteners such as bolts, nuts, and washers.
[0004] This traditional installation method has obvious structural defects. First, it occupies too much space. Due to the use of a split design and a multi-layered structure, the overall volume is 30-50% larger than that of an integrated design. Not only is the vertical installation height large, but sufficient maintenance and operation space also needs to be reserved.
[0005] Secondly, the excessive number of components requires not only a large number of fasteners but also individual gaskets for each connection, and complex internal piping, resulting in a large number of parts in the entire system. In addition, there are many problems such as complex assembly processes, poor sealing reliability, difficult maintenance and disassembly, and high manufacturing costs. This cumbersome structural design can hardly meet the technological development requirements of modern equipment for miniaturization, integration, and reliability, which seriously restricts the improvement of product performance and cost control. Utility Model Content
[0006] In view of the above-mentioned problems in the prior art, the present invention provides an installation structure for a distribution valve and a water circuit board, and a water purifier having the same.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An installation structure for a distribution valve and a water circuit board is provided. The distribution valve has a plurality of first distribution valve interfaces that mate with the water circuit board. The water circuit board has a plurality of flow channels inside. The surface of the water circuit board is provided with a plurality of water circuit board interfaces that are connected to the internal flow channels. The first distribution valve interfaces are female connectors. The distribution valve is inserted into the water circuit board through the mating of the first distribution valve interfaces and the water circuit board interfaces.
[0009] Furthermore, the water circuit board interface that connects to the first distribution valve interface is a male connector, and the first distribution valve interface is plugged into the male connector water circuit board interface.
[0010] Furthermore, the water circuit board interface that connects to the first distribution valve interface is a female connector, and the two are connected by a connector. The connector includes an upper interface and a lower interface that are through each other. A limiting plate that overlaps the water circuit board interface is provided between the upper interface and the lower interface. The lower interface is inserted into the water circuit board interface, and the upper interface is inserted into the first distribution valve interface.
[0011] Furthermore, the lower interface of the connector is provided with a stepped surface, and a sealing ring is provided between the stepped surface and the water channel plate interface.
[0012] Furthermore, the inner side of the water circuit board interface is provided with a stepped surface, and the end face of the lower interface of the connector abuts against the stepped surface.
[0013] Furthermore, the limiting plate and the water channel plate interface are connected and fixed by a fastener.
[0014] Furthermore, the distribution valve also includes a transverse interface, which is connected to the connector via an L-shaped connector; one end of the L-shaped connector is a male connector for insertion into the transverse interface; the other end of the L-shaped connector is a female connector for insertion into the upper interface of the connector.
[0015] Furthermore, a negative pressure valve is inserted into the water circuit board, and the distribution valve has a second distribution valve interface that is not inserted into the water circuit board. The second distribution valve interface is connected to the negative pressure valve through a water pipe.
[0016] Furthermore, a room temperature water pump is inserted into the water circuit board, and the room temperature water pump is connected to the negative pressure valve through the second flow channel inside the water circuit board.
[0017] A water purifier, the water purifier including the aforementioned mounting structure.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This invention directly inserts the distribution valve onto the water circuit board, avoiding complex piping connections, resulting in a high degree of integration and space saving. The invention incorporates connectors at the water circuit board interfaces, and through optimized design of these connectors and related structures, effectively solves the connection problem between the pre-fabricated distribution valve and the water circuit board. The connectors are easy to manufacture and can be produced in fixed quantities as needed, preventing the replacement of the entire water circuit board due to wear and tear, thereby reducing usage and maintenance costs. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the existing distribution valve;
[0021] Figure 2This is an exploded structural diagram of the installation structure of a distribution valve and a water circuit board according to an embodiment;
[0022] Figure 3 This is an assembly structure diagram of the installation structure of a distribution valve and a water circuit board according to an embodiment;
[0023] Figure 4 This is a cross-sectional view of the installation structure of a distribution valve and a water circuit board according to an embodiment.
[0024] The markings in the diagram are: 1. Distribution valve; 1-1. Distribution valve body; 1-2. First distribution valve interface; 1-3. Second distribution valve interface; 1-4. L-shaped connector; 2. Connector; 2-1. Upper interface; 2-2. Lower interface; 2-21. Stepped surface; 2-3. Limiting plate; 3. Water circuit board; 3-1. Water circuit board body; 3-2. Water circuit board interface; 3-21. Stepped surface; 4. Sealing ring; 5. Screw. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings.
[0026] Example 1
[0027] This embodiment provides a highly integrated and space-saving installation structure for a distribution valve and a water circuit board. The water circuit board has several flow channels, and its internal water circuit structure can be conventionally designed according to actual needs. The surface of the water circuit board has several interfaces that connect to its internal flow channels. These interfaces are used to connect water circuit accessories (including but not limited to one or more of solenoid valves, check valves, distribution valves, motors, filter elements, and heating elements). In this embodiment, the water circuit board is at least fitted with a distribution valve, a negative pressure valve, and a normal temperature water pump.
[0028] The distribution valve is a commercially available pre-made distribution valve. In the water purifier industry, distribution valves are typically used to precisely control the flow rate and direction of water, ensuring smooth operation of different stages of filtration and treatment, thereby improving the efficiency and effectiveness of the water purifier. The structure of this distribution valve is as follows: Figure 1 and 4 As shown, the distribution valve 1 includes a distribution valve body 1-1 and four interfaces connected to the distribution valve body 1-1. This invention defines the three interfaces connected to the water circuit board as the first distribution valve interfaces 1-2. Specifically, because... Figure 1The opening direction of the left-side interface is horizontal, and an L-shaped connector 1-4 can be added to connect with the water circuit board. The first distribution valve interface 1-2 is a female connector. In this invention, a female connector refers to an interface with a recessed feature, belonging to the side that is inserted and receives the connection. The first distribution valve interface 1-2 is inserted into the water circuit board by mating with the water circuit board interface. The other interface not connected to the water circuit board is defined in this invention as the second distribution valve interface 1-3. This second distribution valve interface 1-3 is also a female connector. This interface is connected to a negative pressure valve through a water pipe. The negative pressure valve is connected to a normal temperature water pump through a flow channel within the water circuit board, outputting normal temperature water. In this embodiment, the water circuit board interface that mates with the distribution valve adopts a male connector design, or a connector with a male connector is integrally formed on the water circuit board. In this invention, a male connector refers to an interface with a protruding feature, belonging to the side that is inserted and actively connected. The distribution valve achieves a plug-in connection with the water circuit board through the cooperation of its female connector with the male connector of the water circuit board.
[0029] This embodiment simplifies the connection structure of the distribution valve by directly plugging it into the water circuit board, resulting in a high degree of integration and saving space.
[0030] Example 2
[0031] In Embodiment 1, when the water circuit board uses a male connector, the male connector is easily damaged during the insertion and removal of the distribution valve. Since the male connector and the water circuit board are an integral structure, damage to the male connector requires replacing the entire water circuit board, thus increasing operating costs. This embodiment addresses this problem by providing an installation structure for the distribution valve and the water circuit board, as follows: Figure 2-4 As shown, it mainly includes a water circuit board 3, a distribution valve 1 installed on the water circuit board 3, and a connector 2 for connecting the water circuit board 3 and the distribution valve 1. The structure of the distribution valve is the same as that in Embodiment 1, and will not be described again here.
[0032] The water circuit board 3 includes a water circuit board body 3-1, and the water circuit structure inside the water circuit board body 3-1 can be conventionally designed according to actual needs. The surface of the water circuit board 3 has several water circuit board interfaces 3-2 for plugging in other components, including but not limited to one or more of solenoid valves, check valves, distribution valves, motors, filter elements, and heating elements.
[0033] The connector 2 is installed on the water circuit board interface 3-2, which is connected to the first distribution valve interface 1-2. The water circuit board interface 3-2 is a female connector. The structure of the connector 2 is as follows: Figure 4As shown, it mainly includes an upper interface 2-1 and a lower interface 2-2. The upper interface 2-1 and the lower interface 2-2 are connected vertically to form a hollow cylindrical structure. A limiting plate 2-3 is provided on the outer side of the cylindrical wall of the hollow cylindrical structure. The limiting plate 2-3 is located at the junction of the upper interface 2-1 and the lower interface 2-2. The limiting plate 2-3 is used to limit the installation depth of the connector 2. In this embodiment, the limiting plate 2-3 and the hollow cylinder are preferably made as an integral molding structure. The lower interface 2-2 is fixedly inserted into the water circuit board interface 3-2, and the upper interface 2-1 is inserted into the first distribution valve interface 1-2 (the left side is inserted into the first distribution valve interface 1-2 through the L-shaped connector 1-4). The insertion method includes, but is not limited to, the common claw snap-fit method. This embodiment, by adding a connector, enables the distribution valve and the water circuit board to be easily connected, while avoiding the situation in Embodiment 1 where the male connector integrally molded with the water circuit board needs to be replaced when it is damaged, thus further improving the service life of the water circuit board.
[0034] In this embodiment, a stepped surface 3-21 is provided on the inner side of the water channel plate interface 3-2. After installation, the end face of the lower interface 2-1 of the connector abuts against the stepped surface 3-21. The stepped surface 3-21 cooperates with the limiting plate 2-3 to further limit the installation depth of the connector 2.
[0035] In this embodiment, a step is provided on the periphery of the lower interface 2-2 of the connector 2. The surface of the step extending axially is the stepped surface 2-21. A sealing ring 4 is provided between the stepped surface 2-21 of the lower interface of the connector and the inner side of the water circuit board interface 3-2. The stepped surface 2-21 and the water circuit board interface 3-2 are tightly fitted together by the sealing ring 4, which can further enhance the stability and sealing of the connection and prevent leakage.
[0036] To ensure that connector 2 can be stably fixed to the water circuit board 3, this embodiment also provides mounting holes at the overlap between the limiting plate 2-3 and the water circuit board interface 3-2, and corresponding mounting holes are provided on the upper end face of the water circuit board interface 3-2. Connector 2 is fixedly installed on the water circuit board interface 3-2 by fasteners (such as screws 5) passing through the mounting holes. This structural design further enhances the connection between the connector and the water circuit board, and also facilitates the disassembly and replacement of the connector.
[0037] Example 3
[0038] This embodiment provides a water purifier, which has a water circuit board installed inside. A distribution valve is installed on the water circuit board. The distribution valve has several first distribution valve interfaces that are connected to the water circuit board. The water circuit board has several flow channels inside. The surface of the water circuit board is provided with several water circuit board interfaces that are connected to the internal flow channels. The first distribution valve interfaces are female connectors. The distribution valve is inserted into the water circuit board through the docking of the first distribution valve interfaces with the water circuit board interfaces.
[0039] The above embodiments are merely typical implementations of this utility model and are not intended to limit the scope of this utility model. All equivalent substitutions or improvements made within the scope of the claims of this utility model are protected by this utility model.
Claims
1. An installation structure for a distribution valve and a water circuit board, characterized in that, The distribution valve has several first distribution valve interfaces that connect with the water circuit board. The first distribution valve interfaces are female connectors. The water circuit board has several flow channels inside. The surface of the water circuit board is provided with several water circuit board interfaces that communicate with the internal flow channels. The distribution valve is inserted into the water circuit board through the first distribution valve interfaces.
2. The installation structure of the distribution valve and water circuit board according to claim 1, characterized in that, The water circuit board interface that connects to the first distribution valve interface is a male connector, and the first distribution valve interface is plugged into the male connector.
3. The installation structure of the distribution valve and water circuit board according to claim 1, characterized in that, The water circuit board interface that connects to the first distribution valve interface is a female connector. The first distribution valve interface and the water circuit board interface are connected by a connector. The connector includes an upper interface and a lower interface that are through each other. A limiting plate that overlaps the water circuit board interface is provided between the upper interface and the lower interface. The lower interface is inserted into the water circuit board interface, and the upper interface is inserted into the first distribution valve interface.
4. The installation structure of the distribution valve and water circuit board according to claim 3, characterized in that, The lower interface of the connector has a stepped surface on its periphery, and a sealing ring is provided between the stepped surface and the water channel plate interface.
5. The installation structure of the distribution valve and water circuit board according to claim 3, characterized in that, The inner side of the water circuit board interface is provided with a stepped surface, and the end face of the lower interface of the connector abuts against the stepped surface.
6. The installation structure of the distribution valve and water circuit board according to claim 3, characterized in that, The limiting plate and the water channel plate interface are connected and fixed by a fastener.
7. The installation structure of the distribution valve and water circuit board according to claim 3, characterized in that, The distribution valve also includes a transverse interface, which is connected to the connector via an L-shaped joint; one end of the L-shaped joint is a male connector for insertion into the transverse interface; the other end of the L-shaped joint is a female connector for insertion into the upper interface of the connector.
8. The installation structure of the distribution valve and water circuit board according to any one of claims 1 to 3, characterized in that, A negative pressure valve is inserted into the water circuit board, and the distribution valve has a second distribution valve interface that is not inserted into the water circuit board. The second distribution valve interface is connected to the negative pressure valve through a water pipe.
9. The installation structure of the distribution valve and water circuit board according to claim 8, characterized in that, A room temperature water pump is inserted into the water circuit board, and a negative pressure valve is connected to the room temperature water pump through a flow channel inside the water circuit board.
10. A water purifier, characterized in that, The water purifier includes the installation structure described in any one of claims 1 to 9.