Water purifier

Abstract

The utility model discloses a water purifier and belongs to the technical field of household appliances. A water path plate of the water purifier is vertically arranged and is parallel to a shell on one side of a shell, an element distribution area is arranged outside the water path plate, functional elements communicated with a water path through fluid are installed in the element distribution area, and the element distribution area is located on the side, close to the shell, of the water path plate; the filter element and the booster pump are positioned on the same side of the water path plate, and are positioned on different sides of the water path plate from the element distribution area; the booster pump is fixed to the outer side wall of the assembly cylinder and located at the top of the assembly cylinder, the booster pump and the assembly cylinder are arranged in parallel, and the axis of the booster pump and the axis of the assembly cylinder are located in the same vertical plane. According to the utility model, the internal structure of the water purifier is reasonably arranged, the volume of the water purifier body is reduced as much as possible while the functions of the water purifier are perfected, and meanwhile, the water purifier is convenient to disassemble and assemble and the noise of the whole machine is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, in particular to a water purifier. BACKGROUND

[0002] The water purifier uses tap water as the water inlet, and can process the tap water to reach the pure water level through different filter cartridges. At present, there are many types of filter cartridges on the market, such as PP cotton filter cartridges, activated carbon filter cartridges, ultrafiltration membrane filter cartridges, reverse osmosis membrane filter cartridges, or composite filter cartridges with equivalent functions.

[0003] With the increasing demand for water quality treated by water purifiers, most water purifiers on the market are equipped with multiple filter cartridges inside the shell for use. Since the composite filter cartridge has the functions of multiple traditional filter cartridges, it can significantly improve the convenience of disassembling the filter cartridge and has been increasingly adopted. During the use of the composite filter cartridge, or the ultrafiltration membrane filter cartridge and the reverse osmosis membrane filter cartridge, the use effect can be better with the aid of a booster pump.

[0004] Therefore, while the water purifier has more perfect functions and more guaranteed water quality, the product structure of the water purifier is also more complex, with more components. If the distribution of the structures and components of the water purifier is not reasonably planned, it will cause a series of problems such as difficulty in disassembling the water purifier, low space utilization, and high noise of the whole machine.

[0005] According to the search, patent number CN212403502U discloses a middle frame structure of a water purifier and a water purifier. The display panel, control panel, power adapter, filter cartridge, waterway plate assembly, booster pump assembly, and water blocking part are all fixedly connected with the middle shell. The display panel, control panel, and power adapter are arranged at the upper end of the middle shell and are loaded into the middle shell from top to bottom. The display surface of the display panel faces the display shell body at the left end of the middle shell. A filter cartridge mounting barrel perpendicular to the display shell body is arranged below the display shell body of the middle shell, and the filter cartridge is mounted in the filter cartridge mounting barrel. The waterway plate assembly is arranged at the right end of the middle shell and is loaded into the middle shell from right to left. The booster pump assembly includes a soundproof cover and a booster pump fixedly arranged in the soundproof cover. The booster pump assembly is arranged at the lower left end of the middle shell, and the soundproof cover is loaded into the middle shell from bottom to top. The water blocking part is arranged at the lower right end of the middle shell and is loaded into the middle shell from right to left. The applicant hopes to improve the utilization rate of the space of the whole machine through the designed layout, but different components need to be loaded into the middle shell from different angles, and the disassembly will also be relatively cumbersome, which brings difficulties to the disassembly of the water purifier. SUMMARY

[0006] 1. Technical problem to be solved by the utility model

[0007] The utility model aims at solving one of the technical problems in the related art at least. For this purpose, the utility model provides a water purifier, the utility model passes through the reasonable layout to the internal structure of water purifier, reduces the water purifier machine body volume as far as possible while perfecting the function of water purifier, and simultaneously, the convenience of disassembly and assembly of water purifier and the noise of complete machine are reduced.

[0008] 2. Technical scheme

[0009] To achieve the above object, the utility model provides a technical scheme:

[0010] A water purifier, comprising:

[0011] A housing, an installation chamber is formed inside;

[0012] A middle frame is sleeved in the installation chamber and comprises an assembly cylinder for installing a filter element;

[0013] A waterway board is arranged on one side of the middle frame and has a waterway formed inside;

[0014] The filter element is inserted into the assembly cylinder of the middle frame and is in fluid communication with the waterway and is configured to filter raw water flowing into the water purifier;

[0015] A booster pump is arranged in the installation chamber and is in fluid communication with the waterway and is configured to increase the pressure of water in the downstream pipeline, so that water with a certain pressure passes through the filter element;

[0016] The waterway board is vertically arranged and parallel to one side of the housing, an element distribution area is arranged outside the waterway board, functional elements in fluid communication with the waterway are arranged in the element distribution area, and the element distribution area is located on the side of the waterway board close to the housing;

[0017] The filter element and the booster pump are located on the same side of the waterway board and are on different sides of the waterway board relative to the element distribution area;

[0018] The booster pump is fixed to the outer sidewall of the assembly cylinder and is located at the top of the assembly cylinder, and the booster pump is arranged parallel to the assembly cylinder.

[0019] Further, a plurality of assembly cylinders are arranged in the vertical direction of the middle frame, the plurality of assembly cylinders are arranged in parallel, and the.

[0020] Further, a plurality of supporting legs are arranged at the bottom of the middle frame, the plurality of supporting legs are arranged in two parallel columns along the length direction of the assembly cylinder, and a rectangular shape is formed at the bottom of the middle frame; an installation seat is arranged at the top of the middle frame, the installation seat is configured to fix the booster pump; and the central axis of the installation seat coincides with the central axis of the rectangle surrounded by the plurality of supporting legs.

[0021] Further, the bottom of the booster pump is provided with a support, and the booster pump is fixed to the mounting seat through the support; the support has elasticity, and a gap is left between the booster pump and the assembly cylinder.

[0022] Further, the middle frame is provided with the first assembly cylinder and the second assembly cylinder in the vertical direction, the first assembly cylinder is located above the second assembly cylinder, the first assembly cylinder is configured to assemble the composite filter element, and the second assembly cylinder is configured to assemble the RO filter element.

[0023] Further, the top of the waterway board is provided with a water inlet and outlet, the opening of the water inlet and outlet faces upward and is in fluid communication with the waterway.

[0024] Further, one side of the waterway board away from the element distribution area is provided with a filter element interface and a booster pump interface, the filter element interface is configured to enable the filter element to be in fluid communication with the waterway, and the booster pump interface is located above the filter element interface, the booster pump interface is connected with the booster pump through a pipeline, and the booster pump is in fluid communication with the waterway through the booster pump interface.

[0025] Further, the shell comprises a front panel, a middle shell and a back cover plate, wherein:

[0026] The middle shell is a frame-shaped shell body penetrating front and back, and the middle frame, the waterway board and the booster pump are sleeved in the middle shell after assembly;

[0027] The front panel is provided with the same number of filter element assembly holes corresponding to the assembly cylinders, and the filter element is inserted into the assembly cylinder through the filter element assembly hole of the front panel;

[0028] The back cover plate is arranged in parallel with the waterway board, and the functional element is located between the waterway board and the back cover plate.

[0029] Further, the back surface of the upper part of the front panel is provided with a control board, and the control board is fixed to the top of the assembly cylinder of the middle frame.

[0030] Further, the support pad is provided below the support leg, and the support pad has elasticity.

[0031] 3. Beneficial effects

[0032] Compared with the prior art, the technical scheme has the following remarkable effects:

[0033] (1) The utility model discloses a water purifier, sets up as the separation to water road board vertical, sets up the filter core, booster pump on the same side of water road board, and installs the functional element that is communicated with the water road on the other side of water road board, realizes water, electricity separation, reduces the risk of short circuit of functional element when replacing filter core or filter core interface leakage, simultaneously, the functional element is located between water road board and back cover plate, and when needing to check and maintain water purifier, only need to open back cover plate, do not need to disassemble all components of water purifier, and it is more convenient when checking and maintaining.

[0034] (2) The utility model discloses a water purifier, sets up the water inlet and outlet on the top of water road board, and designs the opening upwards, not towards the back of water road board, can adapt to the situation of insufficient space in the front and back direction of water purifier, and tries to guarantee that the filter core length reaches the filter efficiency requirement, simultaneously, combines the water road design features, assembles the composite filter core in the upper assembly cylinder of middle frame, assembles RO filter core in the lower assembly cylinder of middle frame, and assembles booster pump on the top of assembly cylinder, can make water road as short and compact as possible, thereby further save the space of water purifier.

[0035] (3) The utility model discloses a water purifier, sets up multiple supporting legs surrounding rectangular shape on the bottom of middle frame, sets up the mounting seat of fixed booster pump on the top of middle frame, and sets up the middle axis of mounting seat and the middle axis of rectangular surrounded multiple supporting legs coincide, and the supporting pad with certain elasticity is set up on the bottom of supporting leg. Thus, the weight of middle frame and booster pump is supported by supporting leg, and through the cooperation of symmetrical design and supporting pad, can reach the very good shock attenuation and noise reduction effect. ACCURACY OF DRAWINGS

[0036] Figure 1 The exploded view of the water purifier provided by the utility model embodiment is provided.

[0037] Figure 2 The perspective view of the water road board provided by the utility model embodiment is provided.

[0038] Figure 3 The water road schematic view in the water road board provided by the utility model embodiment is provided.

[0039] Figure 4 The side view of the water road board provided by the utility model embodiment is provided.

[0040] Figure 5 The internal structure layout drawing of the water purifier provided by the utility model embodiment is provided.

[0041] Figure 6 The connection schematic view of the water road board and the middle frame provided by the utility model embodiment is provided.

[0042] Figure 7 The internal structure side view of the water purifier provided by the utility model embodiment is provided.

[0043] The reference signs in the schematic drawings are explained as follows:

[0044] 1, housing; 11, dust cover; 12, front panel; 121, filter cartridge assembly hole; 13, middle shell; 14, rear cover plate; 141, first stud; 15, water inlet and outlet plate;

[0045] 2, middle frame; 21, assembly cylinder; 211, first assembly cylinder; 212, second assembly cylinder; 22, support seat; 23, mounting seat; 24, support leg; 25, support pad;

[0046] 3, waterway plate; 31, filter cartridge interface; 311, composite filter cartridge interface; 312, RO filter cartridge interface; 32, booster pump interface; 33, waterway; 34, component distribution area; 35, second stud; 36, water inlet and outlet; 37, functional component;

[0047] 4, control board;

[0048] 5, filter cartridge; 51, composite filter cartridge; 52, RO filter cartridge;

[0049] 6, booster pump; 61, bracket. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0051] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (the posture of the water purification equipment in normal use in the present application). If the specific posture changes, the directional indications also change accordingly.

[0052] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.

[0053] Embodiment 1

[0054] The water purifier of the embodiment can be used at home, for example, it can filter out harmful substances such as silt, rust and bacteria in water, so that the water treated by the water purifier is relatively pure and can be directly drunk, and can also be used for cooking and boiling soup.

[0055] Combined Figure 1 , the water purifier comprises a shell 1 with an installation chamber formed therein, the shell 1 serves as the external shell of the entire water purifier and protects the internal structures. The shape of the shell 1 can be designed as needed.

[0056] The middle frame 2 is sleeved in the installation chamber, and mainly plays a supporting role, including an assembly cylinder 21 for mounting the filter element 5. In addition, the waterway plate 3 and the booster pump 6 are connected with the middle frame 2. Of course, in the entire water purifier, some other necessary components, such as the control panel 4, can also be installed on the middle frame 2, which is selected as needed.

[0057] The waterway plate 3 is arranged on one side of the middle frame 2, and a plurality of waterways 33 with different functions are formed in the waterway plate 3. Figure 3 The plurality of waterways 33 are integrally arranged, which is beneficial to reduce the number of water pipe lines, make the connection structure of the waterway plate 3 more simple, reduce the volume of the waterway plate 3 and the shell 1, reduce the assembly time and improve the assembly efficiency, and better prevent the phenomenon of water pipe line leakage.

[0058] The waterway plate 3 is arranged vertically and parallel to one side of the shell 1, specifically parallel to the rear cover plate 14 in the embodiment. Figure 4 The waterway plate 3 is arranged vertically and parallel to one side of the shell 1, specifically parallel to the rear cover plate 14 in the embodiment.

[0059] Exemplarily, the functional elements 37 include water inlet solenoid valve, concentrated water solenoid valve, backflow solenoid valve, adjustable solenoid valve, check valve, TDS probe, pressure switch, etc., which are used to realize the adjustment of various functions when the water circuit 33 flows.

[0060] The filter element 5 is inserted into the assembly cylinder 21 of the middle frame 2 and is in fluid communication with the water circuit 33 and is configured to filter the raw water flowing into the water purifier.

[0061] It is worth noting that in the specific implementation process, the filter element 5 is preferably provided in multiple numbers, and the raw water is filtered through the combination of multiple filter elements 5, which facilitates the realization of different levels and types of filtering requirements and achieves better water treatment effect. The multiple filter elements 5 are in fluid communication through the water circuit 33, and the flow relationship between the water and the filter elements 5 is adjusted through the functional elements 37. In this embodiment, the filter element 5 includes a composite filter element 51 and an RO filter element 52, wherein the composite filter element 51 includes a pre-filter element and a post-filter element, the pre-filter element processes the water to flow into the RO filter element 52 first, and then the water processed by the RO filter element 52 flows into the post-filter element for processing.

[0062] The booster pump 6 is also arranged in the mounting chamber and is in fluid communication with the water circuit 33, and the booster pump 6 is configured to increase the pressure of the water in the downstream pipeline to make the water with a certain pressure pass through the filter element 5. Due to the use of the composite filter element 51 and the RO filter element 52, the booster pump 6 is needed to assist in better realizing its function, and after the use of the booster pump 6, how to arrange the positional relationship between the composite filter element 51, the RO filter element 52 and the booster pump 6 is a key problem to improve the space utilization rate of the water purifier.

[0063] In this embodiment, the filter element 5 and the booster pump 6 are designed to be located on the same side of the water circuit board 3, and are located on different sides of the water circuit board 3 with the element distribution area 34. The booster pump 6 is fixed to the outer side wall of the assembly cylinder 21 and is located at the top of the assembly cylinder 21, so that the booster pump 6 is arranged in parallel with the assembly cylinder 21.

[0064] Firstly, by arranging the filter element 5 and the booster pump 6 on the same side of the water circuit board 3, the water circuit structure of the water purifier can be greatly simplified; by arranging the booster pump 6 in parallel with the assembly cylinder 21, the space utilization rate is greatly improved, and the vibration and noise reduction and stability of the water purifier are also improved.

[0065] Secondly, the functional elements 37 in fluid communication with the water circuit are uniformly arranged on the other side of the water circuit board 3, which realizes the separation of water and electricity, reduces the risk of short circuit of the functional elements 37 when the filter element 5 or the filter element interface leaks, and at the same time, the functional elements 37 are located between the water circuit board 3 and the rear cover plate 14, so that when the water purifier needs to be checked and maintained, only the rear cover plate 14 needs to be disassembled, without the need to disassemble all the components of the water purifier, which is more convenient for checking and maintenance.

[0066] In a preferred embodiment, the middle frame 2 is provided with two assembly cylinders 21 along the vertical direction, namely a first assembly cylinder 211 and a second assembly cylinder 212. The two assembly cylinders 21 are arranged in parallel, and the axis of the booster pump 6 is located in the same vertical plane as the axis of the assembly cylinder 21. In this way, the booster pump 6 is located directly above the assembly cylinder 21, and the weight of the booster pump 6 is completely pressed on the assembly cylinder 21. This makes the weight of the middle frame 2 very concentrated, resulting in very good installation inertia and high stability for the middle frame 2.

[0067] As a further preferred embodiment, to improve the support stability of the middle frame 2, multiple support legs 24 are provided at the bottom of the middle frame 2. The multiple support legs 24 are arranged in two parallel rows along the length direction of the assembly cylinder 21, forming a rectangular shape at the bottom of the middle frame 2, thus increasing the number of support points for the middle frame 2. Specifically, in this embodiment, a total of 4 support legs 24 are provided, and the 4 support legs 24 are located at the inflection points of the rectangular shape. A support pad 25 is provided below the support legs 24. The support pad 25 has a certain degree of elasticity, such as a rubber pad.

[0068] Furthermore, a support base 22 is provided at the top of the middle frame 2. The support base 22 is mainly used to increase the support strength. A mounting base 23 is provided on the support base 22, which is configured to fix the booster pump 6. Specifically, the mounting base 23 is provided with four mounting feet, and a bracket 61 is provided at the bottom of the booster pump 6. The booster pump 6 is fixed to the mounting feet through the bracket 61, thereby fixing it to the mounting base 23.

[0069] In this embodiment, the central axis of the mounting base 23 coincides with the central axis of the rectangle enclosed by the multiple legs 24. The bracket 61 has a certain degree of elasticity, and a gap is left between the booster pump 6 and the assembly cylinder 21.

[0070] The bracket 61 can act as a buffer during the operation of the booster pump 6 to reduce the vibration transmitted by the booster pump 6. Similarly, the gap between the booster pump 6 and the assembly cylinder 21 ensures that they do not contact each other or have a small contact area. This not only prevents the shapes of the booster pump 6 and the assembly cylinder 21 from affecting each other's installation, but also minimizes the vibration generated by the booster pump 6 by preventing it from being directly transmitted to the assembly cylinder 21.

[0071] In this embodiment, the central axis of the mounting base 23 coincides with the central axis of the rectangle enclosed by multiple support legs 24. This further positions the booster pump 6 at the center of the top of the assembly cylinder 21. Through this symmetrical design, the support legs 24 can provide more stable support for the middle frame 2 and the booster pump 6. With the cooperation of the support pad, the best vibration reduction and noise reduction effect is achieved.

[0072] Example 2

[0073] As a further preferred embodiment, combined with Figure 2 In this embodiment, a filter cartridge interface 31 and a booster pump interface 32 are provided on the side of the water circuit board 3 away from the component distribution area 34. The filter cartridge interface 31 is configured to allow the filter cartridge 5 to be fluidly connected to the water circuit 33. Specifically, this embodiment provides a composite filter cartridge interface 311 and an RO filter cartridge interface 312. The booster pump interface 32 is located above the filter cartridge interface 31 and is connected to the booster pump 6 via a pipe. The booster pump 6 is fluidly connected to the water circuit 33 through the booster pump interface 32.

[0074] Combination Figure 5 and Figure 6 The middle frame 2 is provided with a first assembly cylinder 211 and a second assembly cylinder 212 in the vertical direction. The first assembly cylinder 211 is located above the second assembly cylinder 212. The first assembly cylinder 211 is configured to assemble the composite filter element 51, and the second assembly cylinder 212 is configured to assemble the RO filter element 52.

[0075] The water circuit board 3 has inlet and outlet ports 36 at its top, which are fluidly connected to the water circuit 33. Raw water flows in through the inlet, and the water treated by the combination of composite filter element 51 and RO filter element 52 can flow through different functional water circuits 33 and finally be discharged through the outlet. In this embodiment, four water outlets are arranged side by side at the top of the water circuit board 3, namely raw water inlet, wastewater outlet, pure water outlet and domestic water outlet.

[0076] In this embodiment, the inlet and outlet 36 are positioned upwards, rather than towards the rear of the water circuit board 3. This design accommodates situations where there is insufficient space in the front-to-back direction of the water purifier, ensuring that the filter element length meets filtration efficiency requirements. Furthermore, to improve the compactness of the water circuit board 3 and the rationality of the pipe layout, the composite filter element 51 is assembled in the first assembly cylinder 211 above the middle frame 2, and the RO filter element 52 is assembled in the second assembly cylinder 212 below the middle frame 2. The booster pump 6 is assembled on top of the first assembly cylinder 211, making the water circuit as short and compact as possible, thereby further saving space in the water purifier.

[0077] Example 3

[0078] As a further preferred embodiment, combined with Figure 1 and Figure 7 In this embodiment, the outer shell 1 includes a front panel 12, a middle shell 13, and a rear cover 14, wherein:

[0079] The middle shell 13 is a frame-shaped shell that runs through the front and back. The middle frame 2, water circuit plate 3, and booster pump 6 are assembled into one piece and inserted into the middle shell 13 from one end. The whole piece is fitted into the middle shell 13 and then sealed by the front panel 12 and the rear cover plate 14. A dust cover 11 is further provided on the outside of the front panel 12, which also serves a decorative purpose. A notch is opened on the side of the middle frame 2 near the rear cover plate 14. The inlet and outlet water passage plate 15 is detachably installed in this notch area and directly snaps into the middle frame 2. The inlet and outlet water outlet 36 protrudes from the through hole opened in the inlet and outlet water passage plate 15.

[0080] The front panel 12 is provided with the same number of filter element assembly holes 121 as the assembly cylinder 21. The filter element 5 is inserted into the assembly cylinder 21 through the filter element assembly holes 121 of the front panel 12. The filter element can be easily replaced by removing the dust cover 11.

[0081] A control panel 4 is provided on the upper back of the front panel 12, and the control panel 4 is fixed to the top of the assembly cylinder 21 of the middle frame 2. The control panel 4 is electrically connected to the booster pump 6 and the functional element 37. A control area is provided on the upper surface of the front panel 12 corresponding to the control panel 4, and an indicator pattern is provided on the control area. Users can control the water purifier through the indicator pattern.

[0082] The rear cover plate 14 is provided with a first stud 141, and the water channel plate 3 and the middle frame 2 are provided with second studs 35. The rear cover plate 14 is detachably connected to the water channel plate 3 and the middle frame 2 through the first stud 141 and the second stud 35. The first stud 141 and the second stud 35 not only serve a fixing function, but also leave space between the rear cover plate 14 and the water channel plate 3 and the middle frame 2 for setting up functional components 37.

[0083] The design of the outer shell 1 structure described in this embodiment is more integrated, easier to disassemble and repair, and better able to protect the internal structures.

[0084] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A water purifier, comprising: The outer shell (1) has an internal mounting chamber; The middle frame (2) is fitted into the installation chamber and includes an assembly cylinder (21) for installing the filter element (5); Water channel plate (3) is set on one side of the middle frame (2) and has water channels (33) inside; The filter element (5) is inserted into the assembly cylinder (21) of the middle frame (2) and is fluidly connected to the water passage (33), and is configured to filter the raw water flowing into the water purifier; A booster pump (6) is installed in the mounting chamber and is fluidly connected to the water passage (33). It is configured to increase the pressure of the water in its downstream pipeline so that water with a certain pressure passes through the filter element (5). Its features are: The water circuit board (3) is vertically arranged and parallel to one side of the outer shell (1). The water circuit board (3) has an external component distribution area (34). Functional components (37) that are fluidly connected to the water circuit (33) are installed in the component distribution area (34). The component distribution area (34) is located on the side of the water circuit board (3) close to the outer shell. The filter element (5) and the booster pump (6) are located on the same side of the water circuit plate (3), and on a different side of the water circuit plate (3) from the component distribution area (34); The booster pump (6) is fixed on the outer wall of the assembly cylinder (21) and located at the top of the assembly cylinder (21). The booster pump (6) is arranged parallel to the assembly cylinder (21).

2. A water purifier according to claim 1, characterized in that: The middle frame (2) is provided with multiple assembly cylinders (21) in the vertical direction. The multiple assembly cylinders (21) are arranged in parallel, and the axis of the booster pump (6) and the axis of the assembly cylinder (21) are located in the same vertical plane.

3. A water purifier according to claim 1, characterized in that: The bottom of the middle frame (2) is provided with multiple support legs (24), which are arranged in two parallel columns along the length of the assembly cylinder (21) to form a rectangle at the bottom of the middle frame (2); the top of the middle frame (2) is provided with a mounting base (23), which is configured to fix the booster pump (6); the central axis of the mounting base (23) coincides with the central axis of the rectangle formed by the multiple support legs (24).

4. A water purifier according to claim 3, characterized in that: The booster pump (6) has a bracket (61) at its bottom, and the booster pump (6) is fixed to the mounting base (23) by the bracket (61); the bracket (61) has a certain elasticity, and there is a gap between the booster pump (6) and the assembly cylinder (21).

5. A water purifier according to claim 2, characterized in that: The middle frame (2) is provided with a first assembly cylinder (211) and a second assembly cylinder (212) in a vertical direction. The first assembly cylinder (211) is located above the second assembly cylinder (212). The first assembly cylinder (211) is configured to assemble a composite filter element (51), and the second assembly cylinder (212) is configured to assemble an RO filter element (52).

6. A water purifier according to any one of claims 1-5, characterized in that: The water circuit board (3) is provided with an inlet and outlet (36) at the top. The opening of the inlet and outlet (36) faces upward and is fluidly connected to the water circuit (33).

7. A water purifier according to claim 6, characterized in that: The water circuit board (3) is provided with a filter element interface (31) and a booster pump interface (32) on the side away from the component distribution area (34). The filter element interface (31) is configured to allow the filter element (5) to be fluidly connected to the water circuit (33). The booster pump interface (32) is located above the filter element interface (31). The booster pump interface (32) is connected to the booster pump (6) through a pipe. The booster pump (6) is fluidly connected to the water circuit (33) through the booster pump interface (32).

8. A water purifier according to any one of claims 1-5, characterized in that: The outer casing (1) includes a front panel (12), a middle shell (13), and a rear cover (14), wherein: The middle shell (13) is a frame-shaped shell that runs through the front and back, and the assembled body of the middle frame (2), water circuit plate (3) and booster pump (6) is fitted inside it; The front panel (12) is provided with the same number of filter element assembly holes (121) as the assembly cylinder (21), and the filter element (5) is inserted into the assembly cylinder (21) through the filter element assembly holes (121) of the front panel (12). The rear cover plate (14) is arranged parallel to the water channel plate (3), and the functional element (37) is located between the water channel plate (3) and the rear cover plate (14).

9. A water purifier according to claim 8, characterized in that: A control plate (4) is provided on the upper part of the back of the front panel (12), and the control plate (4) is fixed to the top of the assembly tube (21) of the middle frame (2).

10. A water purifier according to claim 3, characterized in that: A support pad (25) is provided below the support leg (24), and the support pad (25) has a certain elasticity.

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