A zero residual water module and a water purifier having the same

By adopting an independent modular structure and plug-in connection method for the zero-stagnant water module, the problems of complex structure and leakage risk of zero-stagnant water modules in water purification equipment are solved, achieving efficient installation and maintenance, and facilitating the expansion of water purifier functions.

CN224493788UActive Publication Date: 2026-07-14KEMFLO (NANJING) ENVIRONMENTAL TECHNOLOGY CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KEMFLO (NANJING) ENVIRONMENTAL TECHNOLOGY CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The decentralized layout of zero-stagnant water modules in existing water purification equipment results in complex structures, large space occupation, cumbersome connections, increased assembly and maintenance difficulties, and the risk of water leakage. Furthermore, it lacks independence and flexibility.

Method used

The zero-stagnant water module adopts an independent modular structure. The pure water tank has an irregular design with an inwardly recessed mounting groove to integrate zero-stagnant water pipe accessories. It connects to the external water system via a plug-in method and, combined with the standardized interface of the water circuit board, enables quick installation and replacement.

Benefits of technology

It reduces external connection points, lowers the risk of water leakage, reduces module size, improves assembly efficiency and maintenance convenience, and enhances the system's independence and flexibility.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a zero residual water module and have its water purifier belongs to water purification equipment technical field. Zero residual water module adopts independent module formula structure, and its main part is pure water tank, and the pure water tank adopts irregular structure, namely the tank body of pure water tank is formed installation groove through inward recess, and through installation groove integrated installation zero residual water pipeline accessory, zero residual water module is inserted with external waterway through zero residual water pipeline accessory. The utility model discloses through the irregular tank body design of pure water tank, and the recess is formed multiple installation groove to the inside, and the pipeline accessory is directly integrated in the tank body, reduces external connecting point, reduces the risk of water leakage, greatly reduces the module volume simultaneously. The zero residual water module is connected through the plug-in mode with external waterway, and cooperates the standardization interface of waterway board, can realize quick installation and replacement, has improved assembly efficiency and maintenance convenience significantly, and also is convenient for user to select water purifier whether the zero residual water flush function is configured according to the need.
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Description

Technical Field

[0001] This utility model belongs to the field of water purification equipment technology, and specifically relates to a zero-stagnant-water module and a water purifier having the same. Background Technology

[0002] In existing water purification equipment, the design of zero-stagnant water functional modules often adopts a decentralized layout. Each component (such as solenoid valves, diaphragm pumps, and check valves) is typically installed independently in different locations, resulting in a complex overall structure, large space occupation, and cumbersome water circuit connections. This decentralized design not only increases the difficulty of assembly and maintenance but also easily leads to the risk of leakage due to too many connection points. Furthermore, traditional pure water tanks are mostly regular structures, unable to effectively integrate functional accessories, requiring additional fasteners and piping connections, further reducing the system's reliability and efficiency. At the same time, existing zero-stagnant water modules are often deeply integrated with the water production pipeline, lacking independence and flexibility. Utility Model Content

[0003] To address the aforementioned problems in the existing technology, this utility model provides a highly integrated, compact, and easy-to-install and maintain zero-stagnant water module.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a zero-stagnant water module, which adopts an independent modular structure. The main body of the zero-stagnant water module is a pure water tank. The pure water tank has an irregular structure, that is, the tank body forms several mounting grooves by inward indentation. Zero-stagnant water pipeline accessories that communicate with the pure water tank are integrated and installed through the mounting grooves. The zero-stagnant water module is connected to the external water system through the zero-stagnant water pipeline accessories.

[0006] Furthermore, the zero-stagnant water pipeline accessories include a solenoid valve, a diaphragm pump, and a check valve. The pure water tank is equipped with a pure water tank inlet and a pure water tank outlet. The outlet of the solenoid valve is connected to the pure water tank inlet, the pure water tank outlet is connected to the diaphragm pump inlet, and the diaphragm pump outlet is connected to the check valve inlet. The zero-stagnant water module is connected to the external water circuit through the solenoid valve inlet and the check valve outlet.

[0007] Furthermore, the solenoid valve is located at one corner of the pure water tank, with its inlet facing outward and its outlet facing inward. The outlet of the solenoid valve is connected to the inlet of the pure water tank located on the side wall of its mounting slot. The diaphragm pump is located diagonally opposite the solenoid valve, with both its inlet and outlet facing inward. The inlet of the diaphragm pump is connected to the outlet of the pure water tank located on the side wall of its mounting slot. The check valve is located at one corner symmetrical to the solenoid valve axis, with its inlet facing inward and its outlet facing outward. The inlet of the check valve is connected to the outlet of the diaphragm pump. The outlet of the check valve and the inlet of the solenoid valve face the same side.

[0008] Furthermore, the external water circuit is configured via a water circuit board, which is provided with a zero-stagnant water module inlet and a zero-stagnant water module outlet. The inlet of the solenoid valve is inserted into the zero-stagnant water module inlet, and the outlet of the one-way valve is inserted into the zero-stagnant water module outlet.

[0009] Furthermore, a connecting plate is provided on the bottom side of the pure water tank.

[0010] Furthermore, the zero-stagnant water module is connected to the filter module with the filter element installed through the connecting plate.

[0011] Furthermore, the top of the pure water tank is provided with an overflow / vent and a liquid level sensor mounting position, through which the liquid level sensor is installed in the pure water tank.

[0012] Furthermore, the pure water tank consists of a tank body and a cover plate, with a sealing ring between the tank body and the cover plate.

[0013] Furthermore, the upper opening of the pure water tank body is provided with a tank body lug, and the edge of the pure water tank cover is provided with a cover lug that cooperates with the tank body lug for installation.

[0014] This utility model also provides a water purifier, including the aforementioned zero-stagnant-water module.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model utilizes an irregularly shaped, recessed design of the pure water tank to create multiple mounting slots. This allows for the direct integration of piping accessories such as solenoid valves, diaphragm pumps, and check valves into the tank, reducing external connection points, lowering the risk of leakage, and significantly reducing the module's size. The zero-stagnant-water module connects to the external water system via a plug-in connection. Combined with the standardized interface of the water circuit board, it enables rapid installation and replacement, significantly improving assembly efficiency and maintenance convenience. It also allows users to choose whether to include a zero-stagnant-water flushing function in their water purifier. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the zero-stagnant water module in the embodiment;

[0018] Figure 2 This is a schematic diagram of the bottom front structure of the zero-staple water module (pure water tank cover omitted) in the embodiment;

[0019] Figure 3 This is a schematic diagram of the bottom rear structure of the zero-staple water module (pure water tank cover omitted) in the embodiment;

[0020] Figure 4This is a top view of the zero-staple water module (pure water tank cover omitted) in the embodiment;

[0021] Figure 5 This is a bottom view of the zero-staple water module in the embodiment.

[0022] The diagram shows the following markings: 1. Pure water tank body; 1-1. Pure water tank inlet; 1-2. Connecting plate; 1-3. Tank body lug; 1-4. Pure water tank outlet; 2. Pure water tank cover; 2-1. Cover lug; 2-2. Overflow / vent; 2-3. Liquid level sensor mounting position; 3. Solenoid valve; 3-1. Solenoid valve inlet; 3-2. Solenoid valve outlet; 4. Diaphragm pump; 4-1. Diaphragm pump inlet; 4-2. Diaphragm pump outlet; 5. Check valve; 5-1. Check valve inlet; 5-2. Check valve outlet. Detailed Implementation

[0023] The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings. Contents not explicitly described in the embodiments of this utility model are all prior art, and those skilled in the art can refer to existing conventional technical solutions for implementation.

[0024] This embodiment provides a method such as Figure 1-5 The zero-stagnant water module shown is an independent modular structure, with a pure water tank as its main body. The pure water tank has an irregular structure, meaning its body is recessed inwards to form several mounting slots. Zero-stagnant water piping accessories, which communicate with the pure water tank, are integrated and installed through these slots. The zero-stagnant water module connects to the external water system via these piping accessories.

[0025] This embodiment utilizes an irregularly shaped, recessed design for the pure water tank, creating multiple mounting slots to directly integrate piping accessories into the tank. This reduces external connection points, lowers the risk of leakage, and significantly reduces the module's size. Furthermore, this zero-stagnant-water module connects to the external water system via a plug-in connection, allowing users to easily select whether the water purifier includes a zero-stagnant-water flushing function. Combined with the standardized interfaces on the water circuit board, it enables rapid installation and replacement, significantly improving assembly efficiency and ease of maintenance.

[0026] In this embodiment, the pure water tank is preferably a cuboid structure composed of a pure water tank body 1 and a pure water tank cover 2, with a sealing ring between the pure water tank body 1 and the pure water tank cover 2. Specifically, the pure water tank body 1 has a body lug 1-3 at the upper opening edge, and the pure water tank cover 2 has a cover lug 2-1 at its edge. During installation, the body lug 1-3 and the cover lug 2-1 are aligned one-to-one and connected and fixed with bolts to ensure a tight seal. In addition, the pure water tank preferably has a connecting plate 1-2 on its bottom side. The zero-stagnant water module can be directly fixed to the filter module (with a filter installed) of the water purifier through the bottom connecting plate 1-2, and a complete filtration module can be formed after integrating the water circuit board.

[0027] Further preferably, the pure water tank cover 2 is provided with an overflow / vent 2-2 and a level sensor mounting position 2-3, through which the level sensor is installed in the pure water tank. The overflow / vent 2-2 is connected to the drain outlet of the entire unit via a connecting pipe, serving two purposes: firstly, as an overflow outlet to allow overflowing water to drain smoothly in case of level sensor failure; and secondly, as a vent. The integrated design of the top overflow / vent and the level sensor further enhances the system's safety and automated control capabilities.

[0028] In this embodiment, the zero-stagnant water pipeline accessories preferably include a solenoid valve 3, a diaphragm pump 4, and a check valve 5, such as... Figure 5 As shown, the solenoid valve 3 includes a solenoid valve inlet 3-1 and a solenoid valve outlet 3-2; the diaphragm pump 4 includes a diaphragm pump inlet 4-1 and a diaphragm pump outlet 4-2; and the check valve 5 includes a check valve inlet 5-1 and a check valve outlet 5-2. The pure water tank body 1 is equipped with a pure water tank inlet 1-1 and a pure water tank outlet 1-4. The solenoid valve outlet 3-2 is connected to the pure water tank inlet 1-1, the pure water tank outlet 1-4 is connected to the diaphragm pump inlet 4-1, and the diaphragm pump outlet 4-2 is connected to the check valve inlet 5-1. The zero-stagnant water module is connected to the external water circuit through the solenoid valve inlet 3-1 and the check valve outlet 5-2.

[0029] Specifically, such as Figure 5As shown, the solenoid valve 3 is installed in a mounting groove at one corner of the bottom of the pure water tank 1, with the solenoid valve inlet 3-1 facing outward and the solenoid valve outlet 3-2 facing inward. The solenoid valve outlet 3-2 is connected to the pure water tank inlet 1-1 located on the side wall of its mounting groove. The diaphragm pump 4 is installed in a mounting groove at the bottom of the pure water tank 1, diagonally opposite to the solenoid valve 3, with both the diaphragm pump inlet 4-1 and the diaphragm pump outlet 4-2 facing inward. The diaphragm pump inlet 4-1 is connected to the pure water tank outlet 1-4 located on the side wall of its mounting groove. The one-way valve 5 is installed in a mounting groove at the bottom of the pure water tank 1, symmetrical to the solenoid valve 3, with the one-way valve inlet 5-1 facing inward and the one-way valve outlet 5-2 facing outward. The one-way valve inlet 5-1 is connected to the diaphragm pump outlet 4-2. The one-way valve outlet 5-2 and the solenoid valve inlet 3-1 face the same side, facilitating direct connection to external interfaces. This rational structural design further achieves a high degree of integration between the pure water tank and zero-stagnant water pipeline accessories, resulting in a compact structure and convenient installation.

[0030] In existing technologies, the external water circuit is typically configured via a water circuit board. The water circuit board has an inlet and an outlet for the zero-stagnant water module. During installation, simply connect the solenoid valve inlet 3-1 to the zero-stagnant water module inlet of the water circuit board, and the one-way valve outlet 5-2 to the zero-stagnant water module outlet. This configures the water purifier with zero-stagnant water rinsing functionality, offering flexibility and quick assembly. The water circuit board's universal flow channel design allows for flexible expansion with other functional components, enabling it to adapt to different specifications of water purifiers and meet diverse needs.

[0031] The above embodiments demonstrate the core technical solution of this utility model. In practical applications, the component size or water circuit board layout can be adjusted according to requirements, but its modular integration and plug-in design principles should remain unchanged.

[0032] 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. A zero-stagnant-water module, characterized in that, The zero-stagnant water module adopts an independent modular structure. The main body of the zero-stagnant water module is a pure water tank. The pure water tank has an irregular structure, that is, the tank body forms several mounting slots by inward indentation. Zero-stagnant water pipeline accessories that communicate with the pure water tank are integrated and installed through the mounting slots. The zero-stagnant water module is connected to the external water system through the zero-stagnant water pipeline accessories.

2. The zero-stagnant-water module according to claim 1, characterized in that, The zero-stagnant water pipeline accessories include a solenoid valve, a diaphragm pump, and a check valve. The pure water tank is equipped with a pure water tank inlet and a pure water tank outlet. The outlet of the solenoid valve is connected to the pure water tank inlet, the pure water tank outlet is connected to the diaphragm pump inlet, and the diaphragm pump outlet is connected to the check valve inlet. The zero-stagnant water module is connected to the external water circuit through the solenoid valve inlet and the check valve outlet.

3. A zero-stagnant-water module according to claim 2, characterized in that, The solenoid valve is located at one corner of the pure water tank, with its inlet facing outward and its outlet facing inward. The outlet of the solenoid valve is connected to the inlet of the pure water tank located on the side wall of its mounting slot. The diaphragm pump is located diagonally opposite the solenoid valve, with both its inlet and outlet facing inward. The inlet of the diaphragm pump is connected to the outlet of the pure water tank located on the side wall of its mounting slot. The check valve is located at one corner symmetrical to the solenoid valve, with its inlet facing inward and its outlet facing outward. The inlet of the check valve is connected to the outlet of the diaphragm pump. The outlet of the check valve and the inlet of the solenoid valve face the same side.

4. A zero-stagnant-water module according to claim 1, characterized in that, The external water circuit is set up through a water circuit board, which is provided with a zero-stagnant water module inlet and a zero-stagnant water module outlet. The inlet of the solenoid valve is inserted into the zero-stagnant water module inlet, and the outlet of the one-way valve is inserted into the zero-stagnant water module outlet.

5. A zero-stagnant-water module according to claim 1, characterized in that, A connecting plate is provided on the bottom side of the pure water tank.

6. A zero-stagnant-water module according to claim 5, characterized in that, The zero-stagnant water module is connected to the filter module via the connecting plate.

7. A zero-stagnant-water module according to claim 1, characterized in that, The top of the pure water tank is provided with an overflow / vent and a liquid level sensor mounting position, and the liquid level sensor is installed in the pure water tank through the liquid level sensor mounting position.

8. A zero-stagnant-water module according to claim 1, characterized in that, The pure water tank consists of a tank body and a cover plate, with a sealing ring between the tank body and the cover plate.

9. A zero-stagnant-water module according to claim 8, characterized in that, The upper opening of the pure water tank body is provided with a tank body lug, and the edge of the pure water tank cover is provided with a cover plate lug that cooperates with the tank body lug for installation.

10. A water purifier, characterized in that, Includes the zero-stagnant water module as described in any one of claims 1-9.