Integrated double-port valve seat for raw water tank of water purifier
By integrating the raw water outlet and concentrated water inlet channels below the raw water tank of the water purifier and adopting an integrated dual-port valve seat structure, the problem of excessively large size of the water purifier is solved, achieving a compact design and clean water supply.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-13
AI Technical Summary
The complex design of the inlet and outlet at the bottom of the raw water tank of the water purifier results in an excessively large machine size, which takes up a lot of space and affects market promotion and the realization of intelligent functions.
The raw water outlet and concentrated water inlet water circuits are integrated on the base below the raw water tank. The integrated double-port valve seat structure includes a double-port valve body, a double-way valve core, a sealing ring, a conical sleeve, and a partition pipe. The sealing design and one-way valve ensure that the water circuit does not cross-contaminate.
It achieves a compact design for the water purifier, simplifies space occupation, improves integration, and ensures that water does not cross-contaminate, providing a clean supply of filtered water.
Smart Images

Figure CN223991986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water purifier technology, specifically to an integrated double-port valve seat for the raw water tank of a water purifier. Background Technology
[0002] Water purifiers have become a part of people's lives. The use of intelligent water purifiers has enriched people's needs for brewing tea, cooking, and preparing health-promoting foods. However, to improve the intelligence and functionality of water purifiers, the internal electronic control components are taking up more and more space. Retaining the original water piping will increase the space occupied by the water purifier, making it too bulky and hindering market promotion and home use. Therefore, to reduce the space occupied by water purifiers while retaining advanced intelligent functions such as drinking water and cooking, it is necessary to further simplify and optimize the internal piping and structure.
[0003] Considering that the bottom of the raw water tank of a water purifier is usually designed with two ports, namely the inlet and the outlet. The outlet supplies water to the filter components, while the inlet is the return port for the filtered concentrate. These two ports increase the complexity of the raw water tank base during the manufacturing process, and the increased piping connections also limit the size of the machine body. As a result, the machine body is generally too large and not compact enough. The size of the machine body is limited by the raw water and concentrate return structure of the raw water tank, which prevents it from being designed to be compact.
[0004] This patent integrates the raw water inlet and concentrated water outlet water circuits into the base of the machine body below the raw water tank without changing the water circuit. It is compact in size and the two water circuits will not cross each other. Utility Model Content
[0005] The purpose of this invention is to integrate the raw water outlet and concentrated water inlet structures of the raw water tank onto the base below the raw water tank without changing the water circuit of the water purifier. This results in a compact size, simplifies the machine's dimensions, prevents cross-contamination between the two water circuits, reduces space occupation, and greatly improves integration.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An integrated dual-port valve seat for a water purifier's raw water tank includes a dual-port valve body, a dual-way valve core, a sealing ring, a conical sleeve, and a separating pipe that separates the raw water to be supplied to the filtration components from the unfiltered concentrated water.
[0008] The dual-port valve body has an opening at the top. After a sealing ring is inserted and fitted, the sealing ring covers the end face and inner surface of the opening. The end face of the opening fits tightly against the water purifier casing to achieve a seal. The inner surface fits into the outlet pipe shaft hole at the lower end of the original water tank base, and the sealing ring on the inner surface is tightly clamped to achieve a seal. A concentrated water inlet is located below the opening of the dual-port valve body.
[0009] The dual-way valve core is located between the outlet pipe and the opening at the upper end of the dual-port valve body, and includes a central pipe and an outer limiting ring.
[0010] The central tube and the lower end shaft hole of the separator tube are fitted together. A countersunk hole is provided inside the central tube, and a sealing plug ring is fitted therein. The sealing plug ring communicates with the water inlet located at the center of the upper opening of the dual-port valve body. The water inlet is connected to the raw water outlet, allowing raw water to flow in from above the separator tube and be injected into the filter assembly of the water purifier for filtration and drinking.
[0011] A support is provided between the outer limiting ring and the central tube, with a gap to allow concentrated water to flow back to the bottom of the raw water tank. The outer limiting ring is fitted with a clearance fit to the inner wall shaft hole of the outlet pipe at the lower end of the raw water tank base. A sealing spring is provided between the bases of the raw water tank and the base, and the sealing spring ensures that the double-way valve core always receives downward pressing force.
[0012] The outer side of the separator tube is provided with an outer ring groove, which is fitted with a conical sleeve. With the help of the sealing spring, the outer conical surface of the conical sleeve fits against the upper opening of the water outlet pipe of the original water tank base, thus achieving a seal.
[0013] Furthermore, the raw water outlet is connected to a one-way valve, and the flange bolt holes on both sides of the one-way valve are tightly connected to the double-port valve body through connectors to achieve a tight seal.
[0014] Furthermore, the upper outer periphery of the dual-way valve core is provided with several buckles, which cooperate with several slots provided on the inner side wall of the partition tube to lock them together, thereby achieving axial limiting connection between the two.
[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:
[0016] This integrated dual-port valve seat for water purifier raw water tanks integrates the raw water outlet and concentrated water inlet structures of the raw water tank into the dual-port valve body below the raw water tank without changing the water circuit of the water purifier. It is compact, simplifies the machine size design, prevents water from flowing between the two water circuits, reduces space occupation, and greatly improves integration. It can be pumped into the bottom of the raw water tank by simply pressing the sealing spring with a booster pump. After the pumping force is released, the outer conical surface of the conical sleeve fits into the upper opening of the water outlet pipe of the raw water tank base to achieve a seal. It is practical and convenient. Attached Figure Description
[0017] Figure 1 This is a cross-sectional view of the integrated double-port valve seat for the raw water tank of the water purifier in this embodiment.
[0018] Figure 2 This is a right view of the integrated dual-port valve seat used in the raw water tank of the water purifier in this embodiment;
[0019] Figure 3 This is a side-view of the dual-way valve core described in this embodiment;
[0020] Figure 4 for Figure 1 A magnified view of a section at point A in the middle;
[0021] Figure 5 for Figure 2 Side-top sectional view of section BB;
[0022] The components are: 1-raw water tank, 2-water purifier casing, 3-dividing pipe, 4-raw water outlet, 5-concentrated water inlet, 6-conical sleeve, 7-sealing ring, 8-double-port valve body, 9-flange bolt hole, 10-buckle, 11-outer limiting ring, 12-gap, 13-center pipe, 14-dividing pipe outlet, 15-sealing ring on inner surface, 16-sealing plug ring, 17-water inlet, 18-double-way valve core, 19-sealing spring, 20-one-way valve. Detailed Implementation
[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and by way of embodiments.
[0024] Please see Figures 1 to 5 This embodiment provides an integrated dual-port valve seat for the raw water tank 1 of a water purifier, including a dual-port valve body 8, a dual-way valve core 18, a sealing ring 7, a conical sleeve 6, and a separating pipe 3 that separates the raw water to be supplied to the filter assembly from the unfiltered concentrated water.
[0025] See Figure 1 and Figure 4 The upper end of the dual-port valve body 8 is open, and after the sealing ring 7 is fitted with a hole, the sealing ring 7 wraps around the end face and inner surface of the opening. The end face of the opening is tightly fitted with the water purifier housing 2 to achieve a seal. The inner surface fits with the water outlet shaft hole set at the lower end of the base of the original water tank 1, and tightly clamps the sealing ring 15 on the inner surface to achieve a seal. A concentrated water inlet 5 is provided below the opening of the dual-port valve body 8.
[0026] See Figure 3 The dual-port valve core 18 is disposed between the outlet pipe and the opening at the upper end of the dual-port valve body 8, and includes a central pipe 13 and an outer limiting ring 11.
[0027] See Figure 4The central tube 13 is fitted with the lower end shaft hole of the partition tube 3. The central tube 13 is provided with a countersunk hole and a sealing plug ring 16 is fitted inside. The sealing plug ring 16 is connected to the water inlet 17 provided at the center of the upper opening of the double-port valve body 8. The water inlet 17 is connected to the raw water outlet 4 and obtains the raw water flowing in from above the partition tube 3, which is then poured into the filter assembly of the water purifier for filtration and drinking.
[0028] See Figure 3 A support is provided between the outer limiting ring 11 and the central tube 13, with a gap 12 left so that the concentrated water can flow back to the bottom of the raw water tank 1. The outer limiting ring 11 is fitted with the gap 12 of the shaft hole in the inner wall of the outlet pipe provided at the lower end of the base of the raw water tank 1, and a sealing spring 19 is provided between the bases of the raw water tank 1. The sealing spring 19 limits the double-way valve core 18 to always receive downward pressing pressure.
[0029] See Figure 4 The outer side of the separator tube 3 is provided with an outer ring groove, which is nested with the conical sleeve 6. Under the assistance of the sealing spring, the outer conical surface of the conical sleeve 6 fits with the upper opening of the water outlet pipe of the original water tank 1 base to achieve a seal.
[0030] See Figure 1 and Figure 2 The raw water outlet 4 is connected to a one-way valve. The flange bolt holes 9 on both sides of the one-way valve and the double-port valve body 8 are tightly connected by connectors to achieve a tight seal.
[0031] Further, see Figure 3 and Figure 4 The upper outer periphery of the dual-way valve core 18 is provided with 4 buckles 10, which cooperate with 4 slots provided on the inner side wall of the partition tube 3 to lock together, thereby realizing the axial limiting connection between the two.
[0032] See Figure 4 As one implementation method, a one-way valve 20 is provided above the concentrate inlet to prevent concentrate backflow.
[0033] The working principle is as follows: When the water purifier's filter assembly needs raw water, the one-way valve opens, allowing raw water to flow into the raw water outlet from the separator pipe. At this time, under the action of the sealing spring 19, the outer conical surface of the conical sleeve fits against the upper opening of the outlet pipe of the raw water tank base, maintaining a seal. The one-way valve also blocks the concentrated water inlet to ensure no cross-contamination. After the filter assembly filters the raw water, the unfiltered water becomes concentrated water, which is pumped into the concentrated water inlet under the pressure of the booster pump. This also breaks the sealing edge of the one-way valve and the conical sleeve, pumping the concentrated water into the bottom of the raw water tank. By utilizing the high and low liquid level difference in the separator pipe, the raw water and concentrated water are separated and treated to ensure that the water supplied to the water purifier for filtration is always clear, clean, and hygienic raw water.
[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes, modifications, substitutions and variations can be made without departing from the spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An integrated double-port valve seat for a raw water tank of a water purifier, characterized in that: The double-port valve body (8) is open at the upper end, and after the hole is matched with the sealing sleeve ring (7), the sealing sleeve ring (7) wraps the open end face and the inner surface, the open end face is tightly attached to the water purifier shell (2), the inner surface is matched with the water outlet pipe shaft hole arranged at the lower end of the raw water tank (1) bottom, and the sealing sleeve ring (15) of the inner surface is tightly clamped, realizing sealing, and the double-port valve body (8) is provided with a concentrated water inlet (5) below the opening. The double-pass valve core (18) is arranged between the water outlet pipe and the opening at the upper end of the double-port valve body (8), and includes a center pipe (13) and a peripheral limiting ring (11). The center pipe (13) is matched with the lower end shaft hole of the separation pipe (3), and a countersunk hole is arranged in the center pipe (13) and matched with a sealing plug ring (16), the sealing plug ring (16) is communicated with the water inlet (17) arranged at the center of the upper end opening of the double-port valve body (8), the water inlet (17) is communicated with the raw water outlet (4), and the raw water from the upper part of the separation pipe (3) is obtained, and is injected into the filter assembly of the water purifier, and the filtration for drinking is implemented. The peripheral limiting ring (11) is provided with a support between the center pipe (13), and a gap (12) is left for the concentrated water to flow back to the bottom of the raw water tank (1), and the peripheral limiting ring (11) is matched with the water outlet pipe inner wall shaft hole gap (12) arranged at the lower end of the bottom of the raw water tank (1). The separation pipe (3) is provided with an outer ring groove on the outside, and is matched with the tapered sleeve (6) for nesting. A blocking spring is arranged between the bottom of the raw water tank (1), which limits the double-pass valve core (18) to always obtain downward pressing force, and the tapered surface on the outside of the tapered sleeve (6) is attached to the upper edge of the water outlet pipe of the bottom of the raw water tank (1) under the assistance of the blocking spring pressing, realizing sealing.
2. The integrated double-port valve seat for the raw water tank of the water purifier according to claim 1, characterized in that: The raw water outlet (4) is connected with a one-way valve, and the one-way valve is tightly connected with the flange screw hole (9) arranged on the double-port valve body (8) through a connecting piece.
3. The integrated double-port valve seat for raw water tank of water purifier according to claim 1, characterized in that: The upper end of the double-pass valve core (18) is provided with a plurality of buckles (10), which are matched with a plurality of clamping grooves arranged on the inner wall of the separation pipe (3) and locked.
4. The integrated double port valve seat for raw water tank of water purifier according to claim 1, characterized in that: