Water purifier

Abstract

A water purifier, wherein the water purifier comprises a housing assembly (100), a water manifold (300), filter cartridges (200), a booster pump (410), and a control board (420). The housing assembly (100) is provided with a mounting space; filter cartridge mounting seats (120), a first mounting seat (130), a second mounting seat (140), and a third mounting seat (150) are provided in the housing assembly (100); the opening of an accommodating space defined by the first mounting seat (130), the opening of an accommodating space defined by the second mounting seat (140) and the opening of an accommodating space defined by the third mounting seat (150) all face one side of the mounting space; the filter cartridge mounting seats (120) are provided with cylindrical accommodating cavities, one end of each accommodating cavity is open to form a mounting opening (121), and the mounting openings (121) are formed on the peripheral wall of the housing assembly (100). The water manifold (300) is arranged in the first mounting seat (130) and connected to the first mounting seat (130); the filter cartridges (200) are arranged in the filter cartridge mounting seats (120), and each filter cartridge (200) can move in the axial direction of the corresponding accommodating cavity, so that the filter cartridges (200) are inserted into and communicated with the water manifold (300). The water purifier has the advantages of easy assembly, high yield, and simplified structure of the water manifold (300).

Description

water purifier

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311840613.1, filed on December 28, 2023, and entitled “Water Purifier”, and priority to Chinese patent application No. 202323619764.2, filed on December 28, 2023, and entitled “Water Purifier”, all of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of water treatment devices, and in particular to a water purifier. Background Art

[0004] A water purifier is a water treatment device that deeply filters and purifies water according to specific usage requirements. It effectively removes rust, sand, and colloids from water, as well as absorbs residual chlorine, odor, discoloration, pesticides, and other chemicals. It also effectively removes bacteria, pathogens, toxins, heavy metals, and other impurities from water. It is widely used in both residential and commercial applications.

[0005] An under-sink water purifier, installed at the kitchen's water supply terminal, provides clean water to every household. Installation is simple, convenient, and space-saving. Simply turn on the tap for clean water, and it's quick and easy. However, an under-sink water purifier consists of numerous components, and assembly requires multiple flips of the housing. This cumbersome process reduces productivity, and components are easily damaged during flipping.

[0006] The filter cartridges in under-sink water purifiers need to be replaced after a period of use. This is typically done by the user. In related technologies, installing or removing the filter cartridge requires the entire cartridge to rotate, requiring a corresponding rotation mechanism on the waterway plate. This rotation of the filter cartridge drives the rotation of the waterway plate, resulting in a complex waterway plate structure and high costs.

[0007] Summary of the Invention

[0008] This application proposes a water purifier, comprising:

[0009] A housing assembly is provided with an installation space, a filter element mounting seat, a first mounting seat, a second mounting seat and a third mounting seat are provided on the housing assembly, and the filter element mounting seat, the first mounting seat, the second mounting seat and the third mounting seat are all located in the installation space,

[0010] The openings of the receiving space defined by the first mounting seat, the openings of the receiving space defined by the second mounting seat, and the openings of the receiving space defined by the third mounting seat are all facing one side of the mounting space, the filter element mounting seat has a cylindrical receiving cavity, one end of the receiving cavity is open to form a mounting opening, and the mounting opening is provided on the peripheral wall of the housing assembly;

[0011] a waterway plate, the waterway plate being disposed in the first mounting seat and connected to the first mounting seat;

[0012] A filter element, the filter element being disposed on the filter element mounting seat and movable along the axial direction of the receiving cavity so as to be plugged into and communicated with the waterway plate;

[0013] a booster pump, the booster pump being connected to the waterway plate, the booster pump being disposed in the second mounting seat and connected to the second mounting seat;

[0014] A control board is disposed in the third mounting seat and connected to the third mounting seat.

[0015] According to the water purifier of an embodiment of the present application, the filter element includes a core body and a cover body, the core body is suitable for being plugged into the waterway plate, the core body and the cover body are rotatably connected, and the cover body rotates relative to the core body to drive the filter element as a whole to move along the inner wall of the filter element mounting seat.

[0016] According to the water purifier of the embodiment of the present application, a guide block is provided on the outer peripheral wall of the cover body, and a guide groove is provided on the inner wall of the filter element mounting seat, and the guide block is slidable along the guide groove.

[0017] According to the water purifier of the embodiment of the present application, the guide block extends along the circumference of the cover body, and the guide groove extends spirally along the axial direction of the receiving cavity.

[0018] According to the water purifier of the embodiment of the present application, a positioning rib is provided on the outer peripheral wall of the core body, and a positioning groove is provided on the inner wall of the filter element mounting seat. The positioning groove extends along the axial direction of the storage cavity, and the positioning rib is suitable for sliding along the positioning groove.

[0019] According to the water purifier of the embodiment of the present application, a guide portion is provided at one end of the positioning rib away from the cover body.

[0020] According to the water purifier of the embodiment of the present application, a trumpet-shaped opening is provided at one end of the positioning groove facing the installation port, and the trumpet-shaped opening faces the installation port.

[0021] According to the water purifier of the embodiment of the present application, an arc-shaped groove is provided on an end face of one end of the core body, and the arc-shaped groove extends around the axis of the core body. A positioning column is provided on the side of the cover body facing the core body, and the positioning column is inserted into the arc-shaped groove and can slide along the arc-shaped groove.

[0022] According to the water purifier of the embodiment of the present application, a process hole is provided on an end surface of one end of the core body, and the process hole is separated from the arc-shaped groove.

[0023] According to the water purifier of the embodiment of the present application, the housing assembly further includes a panel, the installation space is constructed within the panel, and the installation port is located on the panel.

[0024] According to the water purifier of the embodiment of the present application, at least two of the enclosure, the filter element mounting seat, the first mounting seat, the second mounting seat and the third mounting seat are formed into an integrated part through an integral molding process.

[0025] According to the water purifier of the embodiment of the present application, the enclosure includes a plurality of sub-plates, and the plurality of sub-plates are connected end to end in sequence to define the installation space. The plurality of sub-plates include a first plate body, the filter element mounting seat is connected to the first plate body, and the mounting port is provided on the first plate body.

[0026] According to the water purifier of the embodiment of the present application, the housing assembly further includes a side panel, the side panel is connected to the enclosure panel, and the side panel cover is arranged at the installation space.

[0027] According to the water purifier of the embodiment of the present application, the waterway plate defines a raw water channel, a waste water channel and a pure water channel. The raw water channel is connected to the water inlet of the filter element, the waste water channel is connected to the waste water outlet of the filter element, and the pure water channel is connected to the pure water outlet of the filter element.

[0028] According to the water purifier of the embodiment of the present application, a connecting valve and a first water inlet valve are provided on the raw water channel;

[0029] Alternatively, a switch valve is provided on the wastewater waterway, and the switch valve is used to control the on / off of the wastewater waterway;

[0030] Alternatively, a first one-way valve and a water pressure switch are provided on the pure water channel.

[0031] According to the water purifier of the embodiment of the present application, there are multiple filter elements, one of which is a first filter element and the other is a second filter element. A connecting waterway is further provided on the waterway plate. The connecting waterway is connected to the booster pump. One end of the connecting waterway is connected to the water outlet of the first filter element, and the water inlet of the first filter element is connected to the raw water waterway.

[0032] The other end of the communicating waterway is communicated with the water inlet of the second filter element, the wastewater outlet of the second filter element is communicated with the wastewater waterway, and the pure water outlet of the second filter element is communicated with the pure water waterway.

[0033] According to the water purifier of the embodiment of the present application, a return water channel is also provided on the water channel plate, and the return water channel includes a second one-way valve and a reflux valve. The water inlet end of the return water channel is connected to the pure water channel, and the water outlet end of the return water channel is connected to the connecting water channel.

[0034] According to the water purifier of the embodiment of the present application, the water channel plate further includes an auxiliary branch, the water inlet end of the auxiliary branch is connected to the connecting water channel, and the water outlet end of the auxiliary branch is connected to the water outlet terminal.

[0035] According to the water purifier of the embodiment of the present application, by setting the filter element to move along the axial direction of the storage chamber so that the filter element and the waterway plate are plugged and connected, the movement of the filter element during the installation process is simplified, thereby simplifying the connection structure between the filter element and the waterway plate, and avoiding the complication of the waterway plate structure. In addition, the opening of the storage space defined by the first mounting seat, the opening of the storage space defined by the second mounting seat, and the opening of the storage space defined by the third mounting seat are set to face one side of the installation space. When the water purifier is assembled, the frequency of flipping the housing assembly can be reduced, thereby simplifying the assembly process, while reducing the probability of damage to components such as the waterway plate, booster pump, and control board during the assembly process, thereby improving the yield rate. In addition, the connection structure between the waterway plate, booster pump, and control board can be easily adjusted during the assembly process, thereby improving assembly efficiency.

[0036] This application also proposes a water purifier, comprising:

[0037] The housing assembly includes a panel, an installation space is constructed in the panel, a filter element mounting seat, a first mounting seat, a second mounting seat and a third mounting seat are provided on the housing assembly, and the filter element mounting seat, the first mounting seat, the second mounting seat and the third mounting seat are all located in the installation space.

[0038] At least two of the enclosure, the filter element mounting seat, the first mounting seat, the second mounting seat, and the third mounting seat are formed into an integrated component through an integral molding process, the filter element mounting seat has a cylindrical receiving cavity, one end of the receiving cavity is open to form a mounting opening, and the mounting opening is provided on the enclosure wall;

[0039] a waterway plate, the waterway plate being disposed in the first mounting seat and connected to the first mounting seat;

[0040] A filter element, the filter element being disposed on the filter element mounting seat and movable along the axial direction of the receiving cavity so as to be plugged into and communicated with the waterway plate;

[0041] a booster pump, the booster pump being connected to the waterway plate, the booster pump being disposed in the second mounting seat and connected to the second mounting seat;

[0042] A control board is disposed in the third mounting seat and connected to the third mounting seat.

[0043] According to the water purifier of the embodiment of the present application, the enclosure includes a plurality of sub-plates, and the plurality of sub-plates are connected end to end in sequence to define the installation space. The plurality of sub-plates include a first plate body, the filter element mounting seat is connected to the first plate body, and the mounting port is provided on the first plate body.

[0044] According to the water purifier of the embodiment of the present application, the housing assembly further includes a side panel, the side panel is connected to the enclosure panel, and the side panel cover is arranged at the installation space.

[0045] According to the water purifier of the embodiment of the present application, the opening of the storage space defined by the first mounting seat, the opening of the storage space defined by the second mounting seat, and the opening of the storage space defined by the third mounting seat are all facing one side of the mounting space.

[0046] According to the water purifier of the embodiment of the present application, the waterway plate defines a raw water channel, a waste water channel and a pure water channel. The raw water channel is connected to the water inlet of the filter element, the waste water channel is connected to the waste water outlet of the filter element, and the pure water channel is connected to the pure water outlet of the filter element.

[0047] According to the water purifier of the embodiment of the present application, a connecting valve and a first water inlet valve are provided on the raw water channel;

[0048] Alternatively, a switch valve is provided on the wastewater waterway, and the switch valve is used to control the on / off of the wastewater waterway;

[0049] Alternatively, a first one-way valve and a water pressure switch are provided on the pure water channel.

[0050] According to the water purifier of the embodiment of the present application, there are multiple filter elements, one of which is a first filter element and the other is a second filter element. A connecting waterway is further provided on the waterway plate. The connecting waterway is connected to the booster pump. One end of the connecting waterway is connected to the water outlet of the first filter element, and the water inlet of the first filter element is connected to the raw water waterway.

[0051] The other end of the communicating waterway is communicated with the water inlet of the second filter element, the wastewater outlet of the second filter element is communicated with the wastewater waterway, and the pure water outlet of the second filter element is communicated with the pure water waterway.

[0052] According to the water purifier of the embodiment of the present application, a return water channel is also provided on the water channel plate, and the return water channel includes a second one-way valve and a reflux valve. The water inlet end of the return water channel is connected to the pure water channel, and the water outlet end of the return water channel is connected to the connecting water channel.

[0053] According to the water purifier of the embodiment of the present application, the water channel plate further includes an auxiliary water branch, the water inlet end of the auxiliary water branch is connected to the connecting water channel, and the water outlet end of the auxiliary water branch is connected to the water outlet terminal.

[0054] According to the water purifier of an embodiment of the present application, the filter element includes a core body and a cover body, the core body is suitable for being plugged into the waterway plate, the core body and the cover body are rotatably connected, and the cover body rotates relative to the core body to drive the filter element as a whole to move along the inner wall of the filter element mounting seat.

[0055] According to the water purifier of the embodiment of the present application, a guide block is provided on the outer peripheral wall of the cover body, and a guide groove is provided on the inner wall of the filter element mounting seat, and the guide block is slidable along the guide groove.

[0056] According to the water purifier of the embodiment of the present application, the guide block extends along the circumference of the cover body, and the guide groove extends spirally along the axial direction of the receiving cavity.

[0057] According to the water purifier of the embodiment of the present application, a positioning rib is provided on the outer peripheral wall of the core body, and a mounting groove is provided on the inner wall of the filter element mounting seat. The mounting groove extends along the axial direction of the storage cavity, and the positioning rib is suitable for sliding along the mounting groove.

[0058] According to the water purifier of the embodiment of the present application, a guide portion is provided at one end of the positioning rib away from the cover body.

[0059] According to the water purifier of the embodiment of the present application, a trumpet-shaped opening is provided at one end of the mounting groove facing the mounting port, and the trumpet-shaped opening faces the mounting port.

[0060] According to the water purifier of the embodiment of the present application, an arc-shaped groove is provided on an end face of one end of the core body, and the arc-shaped groove extends around the axis of the core body. A positioning column is provided on the side of the cover body facing the core body, and the positioning column is inserted into the arc-shaped groove and can slide along the arc-shaped groove.

[0061] According to the water purifier of the embodiment of the present application, a process hole is provided on an end surface of one end of the core body, and the process hole is separated from the arc-shaped groove.

[0062] According to the water purifier of the embodiment of the present application, the filter element is arranged to move along the axial direction of the storage chamber so that the filter element is plugged into and connected with the waterway plate, which simplifies the movement of the filter element during the installation process, thereby simplifying the connection structure between the filter element and the waterway plate and avoiding the complication of the waterway plate structure. In addition, at least two of the enclosure, the filter element mounting seat, the first mounting seat, the second mounting seat and the third mounting seat are formed into an integrated part through an integrated molding process. This reduces the number of parts that need to be assembled on the casing assembly, reduces the production steps and the required production machines, and reduces costs. At the same time, the assembly steps of the casing assembly are simplified and production efficiency is improved. In addition, there is no need to flip the enclosure multiple times during the assembly process, which simplifies the installation steps.

[0063] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] FIG1 is a schematic diagram of the internal structure of a water purifier provided in an embodiment of the present application;

[0065] FIG2 is a cross-sectional view of a water purifier provided in an embodiment of the present application;

[0066] FIG3 is a perspective view of a water purifier provided in an embodiment of the present application;

[0067] FIG4 is a perspective view of a filter element provided in an embodiment of the present application;

[0068] FIG5 is an exploded view of a filter element provided in an embodiment of the present application;

[0069] FIG6 is a perspective view of a core provided in an embodiment of the present application;

[0070] FIG7 is a perspective view of a cover provided in an embodiment of the present application;

[0071] FIG8 is a schematic structural diagram of a filter element provided in an embodiment of the present application;

[0072] FIG9 is a front view of a housing assembly provided in an embodiment of the present application;

[0073] FIG10 is a perspective view of a housing assembly according to an embodiment of the present application;

[0074] FIG11 is a second perspective view of the housing assembly provided in an embodiment of the present application;

[0075] FIG12 is a third perspective view of the housing assembly provided in an embodiment of the present application;

[0076] FIG13 is one of the waterway diagrams inside the water purifier provided in an embodiment of the present application;

[0077] FIG14 is a second diagram of the internal water path of the water purifier provided in an embodiment of the present application.

[0078] Reference numerals:

[0079] 100. Housing assembly;

[0080] 110. enclosure; 111. first plate;

[0081] 120, filter element mounting seat; 121, mounting port; 122, communication port; 123, guide groove; 124, positioning groove;

[0082] 130, first mounting seat; 131, limiting hole; 132, fixing block; 133, screw column;

[0083] 140. Second mounting seat; 141. Connecting hole;

[0084] 150, third mounting seat; 151, buckle connection portion; 152, limit plate; 153, limit column; 154, connecting rib;

[0085] 200, filter element; 201, first filter element; 202, second filter element;

[0086] 210, core; 211, positioning rib; 212, arc groove; 213, process hole; 214, connecting column;

[0087] 220, cover; 221, guide block; 222, positioning column; 223, handle; 224, sealing strip; 225, connecting nail; 226, positioning rib plate;

[0088] 300, waterway plate; 301, connecting valve; 302, first water inlet valve; 303, on-off valve; 304, first one-way valve; 305, water pressure switch; 306, second one-way valve; 307, backflow valve; 308, second water inlet valve;

[0089] 310, raw water channel; 320, wastewater channel; 330, pure water channel; 340, connecting water channel; 350, return water channel; 360, auxiliary branch channel;

[0090] 410, booster pump; 420, control panel; 430, water outlet terminal. DETAILED DESCRIPTION

[0091] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0092] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0093] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0094] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0096] The water purifier of the present application is described below with reference to Figures 1-14. It is understood that a water purifier is a water purification device that performs deep filtration and purification of water according to the requirements for water use. A water purifier can effectively filter out rust, sand, gravel, and colloids from water, as well as adsorb residual chlorine, odor, discoloration, pesticides, and other chemicals. It can effectively remove bacteria, pathogens, toxins, heavy metals, and other impurities from water. It is widely used in both residential and commercial applications. An under-sink water purifier is a water purifier installed at the water supply terminal in the kitchen, providing clean water to every household. Installation is very simple, convenient, and space-saving. Simply turn on the tap to get clean water quickly and conveniently.

[0097] 1 , a water purifier according to an embodiment of the present application includes a housing assembly 100 , a waterway plate 300 , a filter element 200 , a booster pump 410 , and a control panel 420 .

[0098] Specifically, the housing assembly 100 provides a mounting location and space for securing the filter element 200, the waterway plate 300, the booster pump 410, and the control board 420. As shown in FIG9 , the housing assembly 100 is provided with a filter element mounting seat 120, a first mounting seat 130, a second mounting seat 140, and a third mounting seat 150. The housing assembly 100 is provided with a mounting space, and the filter element mounting seat 120, the first mounting seat 130, the second mounting seat 140, and the third mounting seat 150 are all located within the mounting space.

[0099] The waterway plate 300 is disposed within and connected to the first mounting seat 130. The filter element 200 is disposed within the filter element mounting seat 120. The filter element 200 is used to filter water. As shown in Figure 10, the filter element mounting seat 120 has a cylindrical storage cavity, one end of which is open to form an installation opening 121. The filter element 200 is suitable for installation or removal from the installation opening 121. The installation opening 121 is provided on the peripheral wall of the housing assembly 100. The filter element 200 can be installed from the direction facing the peripheral wall of the housing assembly 100, which is convenient for users to replace it later. The filter element 200 is movable along the axis of the storage cavity so that the filter element 200 and the waterway plate 300 are plugged and connected. That is, during installation, the filter element 200 as a whole moves linearly along the axis of the storage cavity, without the need for overall rotation. This simplifies the connection structure between the filter element 200 and the waterway plate 300 and avoids complicating the structure of the waterway plate 300. The waterway plate 300, which includes multiple pipes and valves, can be connected to a water source to supply water to the water purifier. It also drains wastewater from the filter cartridge 200. The waterway plate 300 is connected to and communicates with the filter cartridge 200. Water passes through the waterway plate 300 and enters the filter cartridge 200, where it is filtered and then provided to the user.

[0100] The booster pump 410 is connected to the waterway plate 300 and is used to increase the water pressure within the waterway plate 300, ensuring smooth water flow between the waterway plate 300 and the filter element 200. The booster pump 410 is located within and connected to the second mounting base 140. The control board 420 is located within and connected to the third mounting base 150. The control board 420 can be connected to the booster pump 410 or the valves on the waterway plate 300 to control the operating state of the booster pump 410 or the opening of the valves.

[0101] The storage space defined by the first mounting seat 130 has an opening through which the waterway plate 300 is installed or removed. For ease of description, the side wall of the first mounting seat 130 opposite the opening is the bottom wall of the first mounting seat 130. The storage space defined by the second mounting seat 140 has an opening through which the booster pump 410 is installed or removed. The wall of the second mounting seat 140 opposite the opening is the bottom wall of the second mounting seat 140. The storage space defined by the third mounting seat 150 has an opening through which the booster pump 410 is installed or removed. The wall of the third mounting seat 150 opposite the opening is the bottom wall of the third mounting seat 150.

[0102] The openings of the storage space defined by the first mounting seat 130, the openings of the storage space defined by the second mounting seat 140, and the openings of the storage space defined by the third mounting seat 150 are all oriented toward one side of the mounting space. Thus, the waterway plate 300, the booster pump 410, and the control board 420 can all be assembled from one side of the mounting space, avoiding the need to repeatedly flip the housing assembly 100 during assembly, thereby simplifying the assembly process. It is understood that during the flipping of the housing assembly 100, due to factors such as the flipping speed and the limited working space, already assembled components or wiring can easily become loose or fall off, or be damaged by collision. By arranging the openings of the storage space defined by the first mounting seat 130, the openings of the storage space defined by the second mounting seat 140, and the openings of the storage space defined by the third mounting seat 150 to all face one side of the mounting space, the probability of damage to components such as the waterway plate 300, the booster pump 410, and the control board 420 during assembly is reduced, thereby improving the yield rate.

[0103] In some embodiments, one side of the installation space is open, and the opening of the storage space defined by the first mounting seat 130, the opening of the storage space defined by the second mounting seat 140, and the opening of the storage space defined by the third mounting seat 150 are all facing the open side of the installation space, so that the waterway plate 300, the booster pump 410 and the control panel 420 can be installed or disassembled.

[0104] As shown in Figure 3, the casing assembly 100 constructs a rectangular installation space, wherein the installation space has two opposite and largest first side surfaces and a second side surface, at least one of the first side surface and the second side surface is open, and the opening of the storage space defined by the first mounting seat 130, the opening of the storage space defined by the second mounting seat 140, and the opening of the storage space defined by the third mounting seat 150 can all face the open first side surface or the second side surface, which facilitates the installation or disassembly of the waterway plate 300, the booster pump 410 and the control panel 420.

[0105] For example, when the first side is open, the opening of the storage space defined by the first mounting seat 130, the opening of the storage space defined by the second mounting seat 140, and the opening of the storage space defined by the third mounting seat 150 are all facing the first side. In this way, during the assembly of the water purifier, the waterway plate 300, the booster pump 410 and the control board 420 can all be assembled from the first side, which is convenient for adjusting the connection structure between the waterway plate 300, the booster pump 410 and the control board 420, and reduces the frequency of flipping the casing assembly 100, improves the assembly efficiency, and at the same time reduces the probability of damage to the assembled parts during the assembly process, thereby improving the yield rate.

[0106] According to the water purifier of the embodiment of the present application, by setting the filter element 200 to move along the axial direction of the storage chamber so that the filter element 200 is plugged into and connected with the waterway plate 300, the movement of the filter element 200 during installation is simplified, thereby simplifying the connection structure between the filter element 200 and the waterway plate 300 and avoiding the complexity of the structure of the waterway plate 300. In addition, the opening of the storage space defined by the first mounting seat 130, the opening of the storage space defined by the second mounting seat 140, and the opening of the storage space defined by the third mounting seat 150 are all arranged to face one side of the installation space. When the water purifier is assembled, the frequency of turning over the housing assembly 100 can be reduced, thereby simplifying the assembly process. At the same time, the probability of damage to components such as the waterway plate 300, the booster pump 410, and the control board 420 during the assembly process is reduced, thereby improving the yield rate. In addition, the connection structure between the waterway plate 300, the booster pump 410, and the control board 420 can be easily adjusted during the assembly process, thereby improving assembly efficiency.

[0107] 2 and 5 , according to some embodiments of the present application, a filter cartridge 200 includes a core 210 and a cover 220. The core 210 is adapted to be plugged into a waterway plate 300, and the core 210 and cover 220 are rotatably connected. One end of the core 210 is connected to the cover 220, and the other end of the core 210 may be provided with a connecting pipe adapted to plug into and communicate with the waterway plate 300. A groove is provided on the outer circumference of the connecting pipe, and a sealing ring is embedded in the groove to seal the connection between the connecting pipe and the waterway plate 300. There are multiple connecting pipes, one of which is connected to the water inlet of the filter cartridge 200, through which the waterway plate 300 delivers water into the filter cartridge 200. Another connecting pipe is connected to the water outlet of the filter cartridge 200, thereby delivering filtered water from the filter cartridge 200 to the waterway plate 300. It will be understood that the connection points between the core 210 and the waterway plate 300 correspond one-to-one.

[0108] When installing the filter cartridge 200, the cover 220 rotates relative to the core 210 to drive the entire filter cartridge 200 to move along the inner wall of the filter cartridge mounting seat 120, so that the core 210 moves to a position where it is plugged into the waterway plate 300. In this way, during the process of installing or removing the filter cartridge 200, the core 210 moves linearly without rotating, so that the connecting portion on the filter cartridge 200 and the connecting portion on the waterway plate 300 can be smoothly connected, making it convenient for users to replace the filter cartridge 200. In addition, the waterway plate 300 does not need to be provided with a corresponding rotation mechanism, thereby avoiding the complexity of the structure of the waterway plate 300.

[0109] As shown in FIG5 , in some embodiments, the filter element 200 is cylindrical and further includes a connecting pin 225 . A connecting post 214 is provided on the end surface of one end where the core 210 is connected to the cover 220 . The axis of the connecting post 214 is collinear with the axis of the core 210 . The cover 220 is provided with a center hole. The connecting pin 225 is passed through the center hole and connected to the connecting post 214 to connect the cover 220 and the core 210 . The connecting pin 225 and the connecting post 214 can be threaded or interference fit, and the connecting pin 225 is rotatable relative to the center hole. As shown in FIG7 , a positioning rib 226 can be provided on the side of the cover 220 located on the center hole facing the core 210 . The positioning rib 226 surrounds the center hole and is used to position the connecting post 214 .

[0110] In some embodiments, a handle 223 is provided on the side of the cover 220 facing away from the core 210, which is used to install or remove the filter cartridge 200. A cavity is formed within the handle 223, with a central hole located on the bottom wall of the cavity. One side of the cavity is open to accommodate a connecting pin 225 for installation. The filter cartridge 200 also includes a sealing strip 224, which covers the cavity and is removably connected to the cover 220, for example, by snapping the sealing strip 224 to the cover 220.

[0111] As shown in Figures 3 and 4 , according to some embodiments of the present application, the outer wall of the cover 220 is provided with a guide block 221, and the inner wall of the filter cartridge mounting seat 120 is provided with a guide groove 123, along which the guide block 221 can slide. During rotation of the cover 220, the guide block 221 slides along the guide groove 123 to retain the cover 220. In some embodiments, the guide groove 123 extends spirally along the axis of the receiving chamber, and the guide block 221 slides along the guide groove 123, thereby driving the cover 220 and the core 210 along the axis of the receiving chamber. One end of the guide groove 123 can be located at the mounting opening 121, and the other end of the guide groove 123 forms a fixed section with one end parallel to the mounting opening 121. The fixed section can accommodate the guide block 221, preventing unintended movement of the guide block 221 and causing the filter cartridge 200 to loosen. When the guide block 221 is located within the fixed section, the core 210 is tightly connected to the waterway plate 300. The guide groove 123 extends spirally so that the guide groove 123 forms an inclined side wall. When the filter element 200 is removed, the side wall of the guide groove 123 forms a lifting force on the guide block 221 to drive the filter element 200 to move toward the installation port 121, thereby facilitating user operation.

[0112] As shown in Figure 4, the guide block 221 is quadrilateral, wherein the upper and lower sides of the guide block 221 contact the sidewalls of the guide groove 123 to provide support. The guide block 221 extends along the circumference of the cover 220, thereby increasing the area of ​​the upper and lower sides of the guide block 221 and increasing the force exerted on the guide block 221 by the sidewalls of the guide groove 123. It is understood that when water flows from the waterway plate 300 into the filter element 200, it generates an impact force on the filter element 200 toward the mounting port 121. By increasing the area of ​​the upper and lower sides of the guide block 221, the force exerted on the filter element 200 by the guide groove 123 is increased to resist the impact force generated by the water, thereby firmly connecting the filter element 200 to the filter element mounting seat 120 and improving the stability of the connection between the waterway plate 300 and the filter element 200.

[0113] As shown in Figures 8 and 12, referring to some embodiments of the present application, a positioning rib 211 is provided on the outer peripheral wall of the core body 210, and a positioning groove 124 is provided on the inner wall of the filter element mounting seat 120. The positioning groove 124 extends along the axial direction of the storage cavity. The positioning rib 211 is suitable for sliding along the positioning groove 124 to limit the core body 210. During the movement of the core body 210 in the filter element mounting seat 120, the positioning rib 211 slides along the positioning groove 124 to make the core body 210 move along the axial direction of the storage cavity, so that the connection part on the core body 210 is smoothly connected with the connection part on the waterway plate 300.

[0114] According to some embodiments of the present application, a guide portion is provided at the end of the positioning rib 211 facing away from the cover 220. The guide portion is used to guide the positioning rib 211 into engagement with the positioning groove 124, thereby facilitating installation of the filter cartridge 200. As shown in FIG8 , the positioning rib 211 is strip-shaped and extends along the axis of the core 210. The lower end of the positioning rib 211 (in the direction shown in FIG8 ) is provided with a guide portion, which is pointed. As shown in FIG11 and FIG12 , a trumpet-shaped opening is provided at the end of the positioning groove 124 facing the installation port 121. The trumpet-shaped opening faces the installation port 121, and the positioning rib 211 is inserted into the positioning groove 124 through the trumpet-shaped opening. The sidewalls of the trumpet-shaped opening guide the positioning rib 211, facilitating installation of the filter cartridge 200.

[0115] As shown in FIG6 , according to some embodiments of the present application, an arcuate groove 212 is provided on one end surface of the core 210. The arcuate groove 212 extends around the axis of the core 210. As shown in FIG6 , the center of the arcuate groove 212 is located on the axis of the core 210, and the arcuate groove 212 surrounds the connecting post 214. A positioning post 222 is provided on the side of the cover 220 facing the core 210. The position of the positioning post 222 corresponds to the position of the arcuate groove 212. The positioning post 222 is inserted into the arcuate groove 212 and can slide along the arcuate groove 212. The positioning post 222 and the arcuate groove 212 cooperate with each other to limit the position of the cover 220. As shown in FIG6 , in some embodiments, a process hole 213 is provided on one end surface of the core 210. The process hole 213 is spaced apart from the arcuate groove 212. The process hole 213 and the arcuate groove 212 surround the axis of the core 210 to balance the structure of the core 210. In this way, during the cooling process after injection molding, the shrinkage rate of one end of the core 210 is balanced, avoiding unexpected deformation. There can be multiple process holes 213, and the multiple process holes 213 are arranged along an arc. The line connecting the arcuate groove 212 and the multiple process holes 213 forms a circle.

[0116] As shown in FIG10 , according to some embodiments of the present application, the housing assembly 100 further includes a panel 110 , wherein an installation space is constructed within the panel 110 , and the filter element mounting seat 120 , the first mounting seat 130 , the second mounting seat 140 , and the third mounting seat 150 are all located within the panel 110 , wherein one end of the filter element mounting seat 120 is connected to the panel 110 , and the mounting port 121 is located on the panel 110 . In some embodiments, at least two of the panel 110 , the filter element mounting seat 120 , the first mounting seat 130 , the second mounting seat 140 , and the third mounting seat 150 are formed into an integrated component through an integrated molding process. This reduces the number of parts that need to be assembled on the housing assembly 100 , reduces the production steps and the required production machines, and thus reduces costs. At the same time, the assembly steps of the housing assembly 100 are simplified, and production efficiency is improved. In addition, during the assembly process, there is no need to flip the panel 110 multiple times to install it, which simplifies the installation steps.

[0117] For example, the enclosure 110 and the filter element mounting seat 120 can be integrally formed by injection molding, that is, the enclosure 110 and the filter element mounting seat 120 are molded at the same time through a one-time injection molding process to construct an integrated component; or, the first mounting seat 130, the second mounting seat 140 and the third mounting seat 150 can be integrally formed by injection molding, that is, the first mounting seat 130, the second mounting seat 140 and the third mounting seat 150 are molded at the same time through a one-time injection molding process to construct an integrated component; or, the enclosure 110, the filter element mounting seat 120, the first mounting seat 130, the second mounting seat 140 and the third mounting seat 150 are integrally formed by injection molding, and the enclosure 110, the filter element mounting seat 120, the first mounting seat 130, the second mounting seat 140 and the third mounting seat 150 form an integrated component. In this way, the assembly process of the enclosure 110, the filter element mounting seat 120, the first mounting seat 130, the second mounting seat 140 and the third mounting seat 150 can be omitted, thereby greatly reducing production costs, simplifying assembly steps, reducing production costs and improving production efficiency.

[0118] 11 and 12 , according to some embodiments of the present application, the other end of the filter element mounting seat 120 is provided with a connecting port 122, and the connecting port 122 connects the filter element mounting seat 120 with the first mounting seat 130. The filter element 200 or a portion of the waterway plate 300 can be passed through the connecting port 122 for connection, which can reduce the number and length of the connecting pipes in the water purifier and simplify the internal structure of the water purifier. As shown in FIG9 , the filter element mounting seat 120 extends in a horizontal direction (the left-right direction as shown in FIG9 ), one end of the filter element mounting seat 120 is connected to the enclosure 110, and the first mounting seat 130 extends in a height direction of the housing assembly 100 (the up-down direction as shown in FIG9 ), and one end of the first mounting seat 130 is opposite to the other end of the filter element mounting seat 120 and is connected through the connecting port 122 to facilitate the connection between the filter element 200 and the waterway plate 300.

[0119] In some embodiments, the area of ​​the communication port 122 is smaller than the cross-sectional area of ​​the other end of the filter cartridge mounting seat 120, so that the portion of the housing at the other end of the filter cartridge mounting seat 120 can limit the filter cartridge 200. As shown in FIG9 , the height direction of the housing assembly 100 is the up-down direction shown in the figure, and the extension direction of the filter cartridge mounting seat 120 is perpendicular to the height direction of the housing assembly 100. The peripheral wall of the filter cartridge mounting seat 120 supports the filter cartridge 200. Compared to supporting the entire filter cartridge 200 by the end of the filter cartridge mounting seat 120, this can optimize the force applied to the filter cartridge mounting seat 120 and improve the stability of the installation of the filter cartridge 200.

[0120] 9 and 10 , according to some embodiments of the present application, a limiting hole 131 is provided on the bottom wall of the first mounting seat 130. The limiting hole 131 is suitable for limiting the position of the waterway plate 300, and part of the structure of the waterway plate 300 can be inserted into the limiting hole 131. There can be multiple limiting holes 131 to improve the stability of the installation of the waterway plate 300. As shown in FIG9 , the limiting hole 131 can be a through hole that passes through the bottom wall of the first mounting seat 130. In some embodiments, a solenoid valve is provided on the waterway plate 300, and the cable on the waterway plate 300 can be connected to the other side of the bottom wall of the first mounting seat 130 through the limiting hole 131, so as to facilitate the storage of the cable of the waterway plate 300.

[0121] As shown in FIG. 10 , according to some embodiments of the present application, a plurality of fixing blocks 132 are spaced apart within the first mounting seat 130 . The fixing blocks 132 protrude from the bottom wall of the first mounting seat 130 . The fixing blocks 132 abut against and are connected to the waterway plate 300 . The fixing blocks 132 secure and support the waterway plate 300 , aligning the pipes on the waterway plate 300 with the filter element 200 for connection. The fixing blocks 132 are adapted to connect to the waterway plate 300 and can be connected to the waterway plate 300 via screws. There may be multiple fixing blocks 132, spaced apart, forming a retaining space between the fixing blocks 132. Part of the structure of the waterway plate 300 can be positioned within the retaining space to secure the waterway plate 300. In some embodiments, the fixing blocks 132 may be hollow structures with reinforcing ribs to reduce the weight of the first mounting seat 130 . The other end of the fixing blocks 132 is open to facilitate molding.

[0122] 10 and 11 , according to some embodiments of the present application, at least one of the first mounting seat 130 and the filter element mounting seat 120 is provided with a screw column 133. The screw column 133 is adapted to be connected to the waterway plate 300 to improve the installation stability of the waterway plate 300. In some embodiments, the outer peripheral wall of the screw column 133 may be provided with reinforcing ribs to increase the strength of the screw column 133.

[0123] As shown in FIG11 , according to some embodiments of the present application, a plurality of plug holes 141 are provided on the bottom wall of the second mounting base 140 , and the plug holes 141 are suitable for connecting to the boost pump 410 . At least a portion of the boost pump 410 is suitable for being inserted into the plug holes 141 to fix the boost pump 410 . The boost pump 410 may be provided with a plug portion, which is suitable for being inserted into the plug hole 141 . During assembly, the plug portion is aligned with the plug hole 141 and inserted into the plug hole 141 , and then the plug portion is fixed in the plug hole 141 . For example, the plug portion may be a bolt, and the plug hole 141 may be a threaded hole, or a nut may be embedded in the plug hole 141 . After the bolt is inserted into the plug hole 141 , the boost pump 410 can be fixed by screwing the bolt in . In some embodiments, there can be multiple plug-in holes 141 and plug-in parts, and the plug-in holes 141 and plug-in parts are distributed in an array, and each plug-in part corresponds one-to-one to each plug-in hole 141, so as to fix the boost pump 410 from multiple directions to prevent the boost pump 410 from loosening or displacement during operation.

[0124] According to some embodiments of the present application, the insertion hole 141 can also be a threaded blind hole, and the boost pump 410 can be connected to the insertion hole 141 by screws. The insertion hole 141 can be formed after the second mounting base 140 is formed. As shown in Figure 12, the insertion hole 141 can also be a through hole, and a nut can be embedded in the insertion hole 141. Ribs are provided on the other side of the bottom wall of the second mounting base 140 to fix and limit the nut.

[0125] As shown in Figures 9 and 11 , according to some embodiments of the present application, a snap-fit ​​portion 151 is provided on the bottom wall of the third mounting base 150. The snap-fit ​​portion 151 is adapted to connect with the control board 420 to secure the control board 420. In the example of Figure 11 , the snap-fit ​​portion 151 is a through-hole, into which a portion of the control board 420 is adapted to be inserted. Multiple snap-fit ​​portions 151 may be provided to secure the control board 420 from multiple directions.

[0126] 9 and 11 , according to some embodiments of the present application, the third mounting base 150 includes adjacent first and second side walls, one of which is provided with a limiting plate 152. The limiting plate 152 and the other of the first and second side walls define a positioning groove 124. The control board 420 is adapted to be embedded in the positioning groove 124, thereby limiting the control board 420 in the height direction of the housing assembly 100 (the direction shown in FIG. 9 ). As shown in FIG. 11 , the limiting plate 152 extends in the depth direction of the third mounting base 150, with one side of the limiting plate 152 facing the second side wall. The limiting plate 152 and the second side wall define a positioning groove 124, and the control board 420 is received in the positioning groove 124. As shown in Figure 1, the height of the control panel 420 (the up and down directions shown in Figure 1 are the height directions of the control panel 420) can be slightly larger than the distance between the limit plate 152 and the second side wall, so that one side of the control panel 420 is against the fixed plate, and the other side of the control panel 420 is against the second side wall, so that the control panel 420 is firmly installed in the third mounting seat 150.

[0127] As shown in Figure 4 , according to some embodiments of the present application, the first sidewall is further provided with a plurality of limiting posts 153. The limiting posts 153 are adapted to abut against the control board 420 to limit the position of the control board 420. There may be multiple limiting posts 153, and their distribution is related to the distribution of components on the control board 420. The limiting posts 153 should avoid squeezing the components on the control board 420. In some embodiments, the first sidewall is further provided with connecting ribs 154. The connecting ribs 154 are adapted to be fixedly connected to the control board 420, for example, by screws, to enhance the stability of the installation of the control board 420.

[0128] According to some embodiments of the present application, the enclosure 110 includes a plurality of sub-panels, which are connected end to end in sequence to define an installation space, and the filter element mounting seat 120, the first mounting seat 130, the second mounting seat 140, and the third mounting seat 150 can all be connected to the sub-panels. As shown in Figure 10, the enclosure 110 can include four sub-panels, which are connected end to end in sequence to define a rectangular installation space, and part of the structure of the sub-panels constitutes part of the side walls of the first mounting seat 130, the second mounting seat 140, and the third mounting seat 150. It should be noted that this is only an embodiment provided here, and does not limit the number of sub-panels and the shape of the installation space. The number of sub-panels can also be 5, 6, or 7, etc.

[0129] As shown in Figures 11 and 12, Figure 11 shows the direction facing the opening of the storage space defined by the first mounting seat 130, and Figure 12 shows the direction with the housing assembly 100 facing away from the opening of the storage space defined by the first mounting seat 130. In some embodiments, the enclosure 110 protrudes from the bottom wall of the first mounting seat 130, the second mounting seat 140, or the third mounting seat 150. That is, the enclosure 110 protrudes from the bottom wall of the first mounting seat 130 in a direction opposite to the opening of the storage space defined by the first mounting seat 130; alternatively, the enclosure 110 protrudes from the bottom wall of the second mounting seat 140 in a direction opposite to the opening of the storage space defined by the second mounting seat 140; alternatively, the enclosure 110 protrudes from the bottom wall of the third mounting seat 150 in a direction opposite to the opening of the storage space defined by the third mounting seat 150. Thus, a certain storage space is formed on the bottom wall of the first mounting seat 130, the second mounting seat 140 or the third mounting seat 150 in a direction away from their respective openings to accommodate cables or other components in the water purifier.

[0130] The enclosure 110 forms the sidewalls of the housing assembly 100. The multiple sub-panels include a first plate 111. A filter cartridge mounting base 120 is connected to the first plate 111, and a mounting port 121 is provided in the first plate 111. The filter cartridge 200 can be installed or removed through the mounting port 121. This allows users to replace the filter cartridge 200 without removing the sub-panels. The filter cartridge 200 can simply be inserted through the mounting port 121 for easy installation, making it convenient and easy to operate.

[0131] According to some embodiments of the present application, the housing assembly 100 further includes a side panel, which is connected to the enclosure 110, and a side panel cover is provided at the installation space for packaging to protect the components in the installation space. There may be two side panels, one cover is provided on one side of the installation space, and the other cover is provided on the other side of the installation space. The side panel and the enclosure 110 may be connected by screws. For example, a threaded hole is provided on the inner side of the enclosure 110, and a through hole is provided on the side panel, and the side panel and the enclosure 110 are connected by screws; or, the side panel and the enclosure 110 may be buckled, and a plurality of buckling blocks are integrally formed on the enclosure 110 by injection molding, and the plurality of buckling blocks are distributed along the circumference of the installation space, and a plurality of buckling grooves are provided on the side panel, and the buckling blocks are suitable for being fitted into the buckling grooves, thereby fixing the side panel and the enclosure 110.

[0132] According to some embodiments of the present application, a valve is provided on the waterway plate 300. The waterway plate 300 is connected to and communicates with the filter cartridge 200. The waterway plate 300 defines a raw water channel 310, a wastewater channel 320, and a pure water channel 330. The raw water channel 310 is adapted to be connected to a water source to input raw water (raw water to be treated, such as tap water) into the waterway plate 300. The wastewater channel is used to discharge wastewater generated during the filtration process. The pure water channel 330 is used to provide filtered water to the user. The pure water channel 330 is connected to a water outlet terminal 430, which can be a faucet. The raw water channel 310 is connected to the water inlet of the filter cartridge 200, the wastewater channel is connected to the wastewater outlet of the filter cartridge 200, and the pure water channel 330 is connected to the pure water outlet of the filter cartridge 200.

[0133] Referring to Figures 13 and 14 , the arrows in the figures indicate the direction of water flow. According to some embodiments of the present application, the raw water circuit 310 is provided with a connecting valve 301 and a first water inlet valve 302. The connecting valve 301 is located upstream of the first water inlet valve 302 and controls the opening of the connection between the waterway plate 300 and the water source. The connecting valve 301 can be a three-way ball valve with a filter inside to perform preliminary filtration on the raw water in the waterway plate 300. The first water inlet valve 302 controls the flow of water entering the filter cartridge 200. The wastewater circuit is provided with an on-off valve 303 to control the on-off of the wastewater circuit. The pure water circuit 330 is provided with a first check valve 304 and a water pressure switch 305. The first check valve 304 can be located upstream of the water pressure switch 305 and prevents the pure water from flowing back into the filter cartridge 200.

[0134] According to some embodiments of the present application, there are multiple filter cartridges 200, and water is subjected to multiple power treatments through the multiple filter cartridges 200 to reduce the content of impurities and metal ions in the water. One of the filter cartridges 200 is a first filter cartridge 201, and one is a second filter cartridge 202. For example, the first filter cartridge 201 can be a PAC filter cartridge 200 (Poly-Aluminum Chloride, composite filter cartridge 200), and the second filter cartridge 202 can be an RO filter cartridge 200 (Reverse Osmosis, reverse osmosis filter cartridge 200). The waterway plate 300 is also provided with a connecting waterway 340, which is connected to the booster pump 410. One end of the connecting waterway 340 is connected to the water outlet of the first filter cartridge 201, and the water inlet of the first filter cartridge 201 is connected to the raw water waterway 310. The other end of the connecting waterway 340 is connected to the water inlet of the second filter element 202. The wastewater outlet of the second filter element 202 is connected to the wastewater waterway, and the pure water outlet of the second filter element 202 is connected to the pure water waterway 330. As shown in Figures 13 and 14, the connecting waterway 340 is used to connect the first filter element 201 and the second filter element 202. After the water passes through the first filter element 201 for the first filtration, it is transported to the second filter element 202 for the second filtration. The booster pump 410 is connected to the connecting waterway 340 and is used to increase the pressure of the water output from the first filter element 201 so that the water can flow smoothly through the second filter element 202. In the example of Figure 14, the connecting waterway 340 is also provided with a second water inlet valve 308, which is used to control the flow of water input into the second filter element 202.

[0135] As shown in Figure 14, according to some embodiments of the present application, a return water channel 350 is further provided on the water channel plate 300. The water inlet end of the return water channel 350 is connected to the pure water channel 330, and the water outlet end of the return water channel 350 is connected to the connecting water channel 340. The water output by the second filter element 202 can flow to the connecting water channel 340 through the return water channel 350, and then pass through the second filter element 202 for filtration again, thereby solving the problem of too high TDS (Total Dissolved Solids) in the first cup of water. When the water purifier is used for the first time after being shut down for a long time, the TDS content of the water output by the pure water channel 330 is relatively high. The water is transported to the second filter element 202 through the return water channel 350 for refiltration to reduce the TDS value. The return water channel 350 includes a second one-way valve 306 and a reflux valve 307. The second one-way valve 306 is used to prevent the water output by the first filter element 201 from flowing into the pure water channel 330 through the return water channel 350. The return valve 307 may be provided downstream of the second one-way valve 306 , and the return valve 307 is used to protect the return water channel 350 .

[0136] As shown in FIG14 , according to some embodiments of the present application, the waterway plate 300 further includes an auxiliary branch 320. The water inlet of the auxiliary branch 320 is connected to the connecting waterway 340, and the water outlet of the auxiliary branch 320 is connected to the water outlet terminal 430. Water filtered by the first filter element 201 can flow through the auxiliary branch 320 to the water outlet terminal 430 for user use. This allows users to have multiple options for water use. For example, they can use the water output from the pure water channel 330 for drinking or cooking, and the water output from the auxiliary branch 320 for washing, thereby reducing the frequency of replacing the second filter element 202 and saving costs.

[0137] Finally, it should be noted that the above embodiments are intended only to illustrate the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application and are intended to be encompassed by the claims of the present application.

Claims

1. A water purifier, comprising: A housing assembly, the housing assembly is provided with an installation space, and the housing assembly is provided with a filter element mounting seat, a first mounting seat, a second mounting seat and a third mounting seat. The filter element mounting seat, the first mounting seat, the second mounting seat and the third mounting seat are all located in the installation space. The openings of the receiving spaces defined by the first mounting seat, the openings of the receiving spaces defined by the second mounting seat and the openings of the receiving spaces defined by the third mounting seat all face one side of the installation space. The filter element mounting seat has a cylindrical receiving cavity, and one end of the receiving cavity is open to form an installation opening, and the installation opening is provided on the peripheral wall of the housing assembly. A water circuit board, the water circuit board is arranged in the first mounting seat and connected to the first mounting seat. A filter element, the filter element is arranged in the filter element mounting seat, and the filter element is movable along the axis direction of the receiving cavity so that the filter element is inserted and communicated with the water circuit board. A booster pump, the booster pump is connected to the water circuit board, the booster pump is arranged in the second mounting seat and connected to the second mounting seat. A control board, the control board is arranged in the third mounting seat and connected to the third mounting seat.

2. The water purifier according to claim 1, wherein, The filter element includes a core body and a cover body. The core body is adapted to be inserted into the water circuit board. The core body and the cover body are rotatably connected, and the cover body rotates relative to the core body to drive the whole filter element to move along the inner wall of the filter element mounting seat.

3. The water purifier according to claim 2, wherein, The outer peripheral wall of the cover body is provided with a guiding block, and the inner wall of the filter element mounting seat is provided with a guiding groove, and the guiding block can slide along the guiding groove.

4. The water purifier according to claim 3, wherein, The guiding block extends along the circumferential direction of the cover body, and the guiding groove extends spirally along the axis direction of the receiving cavity.

5. The water purifier according to claim 2, wherein, The outer peripheral wall of the core body is provided with a positioning rib, and the inner wall of the filter element mounting seat is provided with a positioning groove. The positioning groove extends along the axis direction of the receiving cavity, and the positioning rib is adapted to slide along the positioning groove.

6. The water purifier according to claim 5, wherein, One end of the positioning rib away from the cover body is provided with a guiding portion.

7. The water purifier according to claim 5, wherein, One end of the positioning groove facing the installation opening is provided with a flared opening, and the flared opening faces the installation opening.

8. The water purifier according to any one of claims 2 to 7, wherein, An arc-shaped groove is provided on one end face of the core body, and the arc-shaped groove extends around the axis of the core body. A positioning post is provided on the side of the cover body facing the core body, and the positioning post is inserted into the arc-shaped groove and can slide along the arc-shaped groove.

9. The water purifier according to claim 8, wherein, A process hole is provided on one end face of the core body, and the process hole is spaced apart from the arc-shaped groove.

10. The water purifier according to claim 1, wherein, The housing assembly further includes a surrounding plate, and the installation space is constructed inside the surrounding plate, and the installation opening is located on the surrounding plate.

11. The water purifier according to claim 10, wherein, At least two of the surrounding plate, the filter element mounting seat, the first mounting seat, the second mounting seat and the third mounting seat are formed into an integrated part by an integral molding process.

12. The water purifier according to claim 10, wherein, The surrounding plate includes a plurality of sub-plates, and the plurality of sub-plates are sequentially connected end to end to define the installation space. Among the plurality of sub-plates, there is a first plate body, and the filter element mounting seat is connected to the first plate body, and the installation opening is provided on the first plate body.

13. The water purifier according to claim 10, wherein, The housing assembly further includes a side plate, which is connected to the surrounding plate and covers the installation space.

14. The water purifier according to claim 1, wherein, The water circuit board defines a raw water circuit, a wastewater circuit and a pure water circuit. The raw water circuit is communicated with the water inlet of the filter element, the wastewater circuit is communicated with the wastewater outlet of the filter element, and the pure water circuit is communicated with the pure water outlet of the filter element.

15. The water purifier according to claim 14, wherein, A communication valve and a first water inlet valve are provided on the raw water circuit; Alternatively, a switch valve is provided on the wastewater circuit, and the switch valve is used to control the on-off of the wastewater circuit; Alternatively, a first one-way valve and a water pressure switch are provided on the pure water circuit.

16. The water purifier according to claim 14, wherein, There are multiple filter elements, one of which is a first filter element and one is a second filter element. A communication water circuit is further provided on the water circuit board. The communication water circuit is communicated with the booster pump. One end of the communication water circuit is communicated with the water outlet of the first filter element, and the water inlet of the first filter element is communicated with the raw water circuit. The other end of the communication water circuit is communicated with the water inlet of the second filter element. The wastewater outlet of the second filter element is communicated with the wastewater circuit, and the pure water outlet of the second filter element is communicated with the pure water circuit.

17. The water purifier according to claim 16, wherein, A return water circuit is further provided on the water circuit board. The return water circuit includes a second one-way valve and a return valve. The water inlet end of the return water circuit is communicated with the pure water circuit, and the water outlet end of the return water circuit is communicated with the communication water circuit.

18. The water purifier according to claim 16, wherein, The water circuit board further includes an auxiliary branch. The water inlet end of the auxiliary branch is communicated with the communication water circuit, and the water outlet end of the auxiliary branch is communicated with the water outlet terminal.

19. A water purifier, comprising: A housing assembly, the housing assembly includes a surrounding plate, an installation space is constructed inside the surrounding plate, and a filter element mounting seat, a first mounting seat, a second mounting seat and a third mounting seat are provided on the housing assembly. The filter element mounting seat, the first mounting seat, the second mounting seat and the third mounting seat are all located inside the installation space. At least two of the surrounding plate, the filter element mounting seat, the first mounting seat, the second mounting seat and the third mounting seat are formed into an integrated part by an integral molding process. The filter element mounting seat has a cylindrical storage cavity, and one end of the storage cavity is open to form an installation opening, and the installation opening is provided on the surrounding plate. A water circuit board, the water circuit board is arranged inside the first mounting seat and is connected to the first mounting seat; A filter element, the filter element is arranged on the filter element mounting seat, and the filter element can move along the axis direction of the storage cavity so that the filter element is inserted and communicated with the water circuit board; A booster pump, the booster pump is connected to the water circuit board, the booster pump is arranged inside the second mounting seat and is connected to the second mounting seat; A control board, the control board is arranged inside the third mounting seat and is connected to the third mounting seat.

20. The water purifier according to claim 19, wherein, The surrounding plate includes multiple sub-plates, and the multiple sub-plates are connected end to end in sequence to define the installation space. The multiple sub-plates include a first plate body, the filter element mounting seat is connected to the first plate body, and the installation opening is provided on the first plate body.

21. The water purifier according to claim 19, wherein, The housing assembly further includes a side plate, which is connected to the surrounding plate and covers the installation space.

22. The water purifier according to claim 19, wherein, The openings of the storage spaces defined by the first mounting base, the openings of the storage spaces defined by the second mounting base, and the openings of the storage spaces defined by the third mounting base all face one side of the mounting space.

23. The water purifier according to claim 19, wherein, The water circuit board defines a raw water circuit, a waste water circuit, and a pure water circuit. The raw water circuit is communicated with the water inlet of the filter element. The waste water circuit is communicated with the waste water outlet of the filter element. The pure water circuit is communicated with the pure water outlet of the filter element.

24. The water purifier according to claim 23, wherein, A communication valve and a first water inlet valve are provided on the raw water circuit; Alternatively, a switch valve is provided on the waste water circuit, and the switch valve is used to control the on-off of the waste water circuit; Alternatively, a first one-way valve and a water pressure switch are provided on the pure water circuit.

25. The water purifier according to claim 23, wherein, There are multiple filter elements, one of which is a first filter element and one is a second filter element. A communication water circuit is further provided on the water circuit board. The communication water circuit is communicated with the booster pump. One end of the communication water circuit is communicated with the water outlet of the first filter element. The water inlet of the first filter element is communicated with the raw water circuit. The other end of the communication water circuit is communicated with the water inlet of the second filter element. The waste water outlet of the second filter element is communicated with the waste water circuit. The pure water outlet of the second filter element is communicated with the pure water circuit.

26. The water purifier according to claim 25, wherein, A return water circuit is further provided on the water circuit board. The return water circuit includes a second one-way valve and a return valve. The water inlet end of the return water circuit is communicated with the pure water circuit. The water outlet end of the return water circuit is communicated with the communication water circuit.

27. The water purifier according to claim 25, wherein, The water circuit board further includes an auxiliary branch. The water inlet end of the auxiliary branch is communicated with the communication water circuit. The water outlet end of the auxiliary branch is communicated with the water outlet terminal.

28. The water purifier according to claim 19, wherein, The filter element includes a core body and a cover body. The core body is adapted to be inserted into the water circuit board. The core body and the cover body are rotatably connected. The cover body rotates relative to the core body to drive the whole filter element to move along the inner wall of the filter element mounting seat.

29. The water purifier according to claim 28, wherein, A guiding block is provided on the outer peripheral wall of the cover body. A guiding groove is provided on the inner wall of the filter element mounting seat. The guiding block can slide along the guiding groove.

30. The water purifier according to claim 29, wherein, The guiding block extends along the circumferential direction of the cover body. The guiding groove extends spirally along the axial direction of the storage cavity.

31. The water purifier according to claim 28, wherein, A positioning rib is provided on the outer peripheral wall of the core body. An installation groove is provided on the inner wall of the filter element mounting seat. The installation groove extends along the axial direction of the storage cavity. The positioning rib is adapted to slide along the installation groove.

32. The water purifier according to claim 31, wherein, A guiding portion is provided at one end of the positioning rib away from the cover body.

33. The water purifier according to claim 31, wherein, One end of the installation groove facing the installation opening is provided with a flared opening, and the flared opening faces the installation opening.

34. The water purifier according to claim 28, wherein, An arc-shaped groove is provided on one end face of the core body. The arc-shaped groove extends around the axis of the core body. A positioning post is provided on one side of the cover body facing the core body. The positioning post is inserted into the arc-shaped groove and can slide along the arc-shaped groove.

35. The water purifier according to claim 34, wherein, A process hole is provided on one end face of the core body. The process hole is spaced apart from the arc-shaped groove.

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