Waterway board and water purifier

Abstract

The invention provides a waterway board and a water purifier. A first fixing part and a second fixing part are arranged on one side of the waterway plate, and a third fixing part is arranged on the other side of the waterway plate. When the whole water purifier is assembled, the PCB composite filter element, the RO filter element and the rear activated carbon filter element can be detachably installed on the water path plate through the first fixing part, the second fixing part and the third fixing part respectively and correspondingly communicate with the water path plate, the rear activated carbon filter element does not need to be independently assembled and fixed, and therefore the water purifier is convenient to assemble and disassemble. The PCB composite filter element and the RO filter element as well as the RO filter element and the rear activated carbon filter element are communicated through the waterway plates while the filter element assembly efficiency of the water purifier is improved, so that the use of materials such as communicating pipes and adapters can be reduced, and the cost of the water purifier is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, and in particular to a waterway plate and a water purifier. Background Art

[0002] As people's living standards improve, consumers pay more and more attention to the health of drinking water. More and more public places, such as airports, high-speed rail stations, and direct drinking water stations in parks, are equipped with professional large-scale commercial water purifiers. The core components of the filtration and purification system of commercial water purifiers are PCB composite filter elements, RO reverse osmosis filter elements, and post-activated carbon filter elements. However, in order to control the volume of the whole machine, the water purifier in the prior art does not have a wide internal space, which makes it inconvenient to operate when assembling the whole machine, and the assembly efficiency is low. Summary of the invention

[0003] Based on this, it is necessary to provide a waterway plate and a water purifier to address the problems of inconvenient operation and low assembly efficiency during assembly of the water purifier in the prior art.

[0004] The technical solution is as follows:

[0005] On the one hand, a waterway plate is provided for installing a PCB composite filter element, a RO reverse osmosis filter element and a post-activated carbon filter element, wherein a first fixing portion and a second fixing portion are provided on one side of the waterway plate, and a third fixing portion is provided on the other side of the waterway plate, and the waterway plate is configured to be connected with the PCB composite filter element, the RO reverse osmosis filter element and the post-activated carbon filter element when the PCB composite filter element is detachably installed on the first fixing portion, the RO reverse osmosis filter element is detachably installed on the second fixing portion, and the post-activated carbon filter element is detachably installed on the third fixing portion.

[0006] The technical solution is further described below:

[0007] In one embodiment, the third fixing portion includes a support frame, and the support frame is used to support and fix the post-activated carbon filter element.

[0008] In one of the embodiments, a slot is provided on one side of the support frame away from the waterway plate, and opposite sides of the slot extend to opposite sides of the support frame respectively, and the post-activated carbon filter passes through the slot and has an interference fit with the slot.

[0009] In one embodiment, the third fixing portion also includes a mounting frame spaced apart from the supporting frame, a mounting groove is provided on a side of the mounting frame close to the supporting frame, one side of the mounting groove extends to a side of the mounting frame away from the waterway plate, a first water outlet channel is provided on the bottom wall of the mounting groove, and the first water outlet channel is configured to be plugged into and connected with the first water outlet when one end of the post-activated carbon filter element having a first water outlet is installed in the mounting groove.

[0010] In one of the embodiments, the third fixing portion further includes a reinforcing rib, and the reinforcing rib is located between the supporting frame and the mounting frame, and is connected to the supporting frame, the supporting frame and the waterway plate.

[0011] In one embodiment, the PCB composite filter element is provided with a first water inlet and a second water outlet, and the waterway plate is provided with a first water inlet channel and a second water outlet channel, one end of the first water inlet channel is used to communicate with an external water source, and the other end is configured to communicate with the first water inlet when the PCB composite filter element is installed on the first fixed part, one end of the second water outlet channel is configured to communicate with the second water outlet when the PCB composite filter element is installed on the first fixed part, and the other end is used to communicate with the water inlet end of the pressure regulating pump.

[0012] In one of the embodiments, the waterway plate is further provided with an installation port communicated with the second water outlet channel, and the installation port is used for installing a pressure detection component.

[0013] In one embodiment, the RO reverse osmosis filter element is provided with a second water inlet, a third water outlet for wastewater discharge, and a fourth water outlet for filtered water discharge, the post-activated carbon filter element is provided with a third water inlet, and the waterway plate is provided with a second water inlet channel, a third water outlet channel and a fourth water outlet channel, one end of the second water inlet channel is used to communicate with the water outlet end of the pressure-stabilizing pump, and the other end is configured to communicate with the second water inlet when the RO reverse osmosis filter element is installed on the second fixed part, one end of the third water outlet channel is configured to communicate with the third water outlet when the RO reverse osmosis filter element is installed on the second fixed part, one end of the fourth water outlet channel is configured to communicate with the fourth water outlet when the RO reverse osmosis filter element is installed on the second fixed part, and the other end is used to communicate with the third water inlet.

[0014] On the other hand, a water purifier is provided, comprising a PCB composite filter element, a RO reverse osmosis filter element, a post-activated carbon filter element and the waterway plate, wherein the PCB composite filter element, the RO reverse osmosis filter element and the post-activated carbon filter element are all installed on the waterway plate.

[0015] In one of the embodiments, the water purifier further includes a pressure detection component, which is installed on the water circuit board and is used to detect the pressure at the second water outlet of the PCB composite filter element.

[0016] When the waterway plate and the water purifier in the above-mentioned embodiment are in use, the PCB composite filter element, the RO reverse osmosis filter element and the post-activated carbon filter element can be detachably installed on the waterway plate through the first fixing part, the second fixing part and the third fixing part respectively, and are connected with the waterway plate accordingly, and there is no need to assemble and fix the post-activated carbon filter element separately, which facilitates the installation and fixation of the three filter elements in a relatively small space inside the water purifier, thereby improving the filter element assembly efficiency of the water purifier. At the same time, the PCB composite filter element and the RO reverse osmosis filter element, as well as the RO reverse osmosis filter element and the post-activated carbon filter element are connected through the waterway plate, which can reduce the use of materials such as connecting pipes and adapters, thereby reducing the cost of the water purifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] FIG1 is a schematic diagram of the structure of an embodiment in which a PCB composite filter element, a RO reverse osmosis filter element and a post-activated carbon filter element are all installed on a waterway plate.

[0020] FIG. 2 is an exploded view of the PCB composite filter element, RO reverse osmosis filter element, post-activated carbon filter element and waterway plate of FIG. 1 .

[0021] FIG. 3 is a schematic structural diagram of the waterway plate of FIG. 1 .

[0022] FIG. 4 is a schematic structural diagram of the waterway plate of FIG. 3 from another viewing angle.

[0023] FIG. 5 is a partial enlarged view of portion A in FIG. 1 .

[0024] Description of reference numerals:

[0025] 100, waterway plate; 110, first fixing part; 120, second fixing part; 130, third fixing part; 131, support frame; 132, slot; 133, mounting frame; 134, mounting slot; 135, first water outlet channel; 136, reinforcing rib; 140, mounting port; 200, PCB composite filter element; 210, filter element fin protrusion; 300, RO reverse osmosis filter element; 400, post-activated carbon filter element; 410, first water outlet; 500, pressure detection component. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] In order to control the volume of the whole machine, the internal space of the water purifier in the prior art is not spacious, the operation is inconvenient during assembly of the whole machine, and the assembly efficiency is low, the inventors have found through testing and analysis that, generally, the filter elements are packaged separately, and the filter element assembly is not involved when the whole machine is assembled, but a pre-installed PE pipe and an adapter for connecting the filter element to the water circuit will be reserved. Only when the whole machine is used will the after-sales installer install the filter element into the whole machine, and install the three filter elements separately on different water circuit plates and then connect them through pipes. However, due to the limited internal space of the whole machine, it is often not easy to plug and unplug the pipes when plugging in the connecting pipes after the filter element is installed in the later stage, which is time-consuming and laborious.

[0028] The current filter installation method also combines the waterway plates of the RO reverse osmosis filter element and the PCB composite filter element, that is, the RO reverse osmosis filter element and the PCB composite filter element are connected through an integrated waterway plate, eliminating the need for inserting pipes. However, the post-activated carbon filter element still needs to be connected to the purification system through a pipe adapter, because the interior of the commercial water purifier is mostly intricately coiled bellows, and in order to control the size of the entire machine, the internal space is not open, and it is often very difficult to operate when inserting the post-carbon rod filter element.

[0029] Based on the above problems, the inventors have designed and proposed the waterway plate 100 and water purifier of the following embodiments of the present application to solve the above technical problems.

[0030] As shown in Fig. 1, Fig. 2, and Fig. 3, in one embodiment, a waterway plate 100 is provided for installing a PCB composite filter element 200, a RO reverse osmosis filter element 300, and a post-activated carbon filter element 400. A first fixing portion 110 and a second fixing portion 120 are provided on one side of the waterway plate 100, and a third fixing portion 130 is provided on the other side of the waterway plate 100. The waterway plate 100 is configured to be connected to the PCB composite filter element 200, the RO reverse osmosis filter element 300, and the post-activated carbon filter element 400 when the PCB composite filter element 200 is detachably mounted on the first fixing portion 110, the RO reverse osmosis filter element 300 is detachably mounted on the second fixing portion 120, and the post-activated carbon filter element 400 is detachably mounted on the third fixing portion 130.

[0031] When the waterway plate 100 in the above embodiment is in use, the PCB composite filter element 200, the RO reverse osmosis filter element 300 and the post-activated carbon filter element 400 can be detachably installed on the waterway plate 100 through the first fixing part 110, the second fixing part 120 and the third fixing part 130 respectively, and are connected with the waterway plate 100 accordingly. There is no need to assemble and fix the post-activated carbon filter element 400 separately, which is convenient for installing and fixing the three filter elements in a smaller space inside the water purifier, thereby improving the filter element assembly efficiency of the water purifier. At the same time, the PCB composite filter element 200 and the RO reverse osmosis filter element 300, as well as the RO reverse osmosis filter element 300 and the post-activated carbon filter element 400 are connected through the waterway plate 100, which can reduce the use of materials such as connecting pipes and adapters, thereby reducing the cost of the water purifier.

[0032] It should be noted that the connecting pipe for connecting the RO reverse osmosis filter element 300 and the post-activated carbon filter element 400 is set as the first pipe, one end of the first pipe can be pre-connected with the water outlet channel in the waterway plate 100 for connecting with the filtered water outlet of the RO reverse osmosis filter element 300, and the other end can be connected to the water inlet of the post-activated carbon filter element 400 when the post-activated carbon filter element 400 is installed. In this way, when the whole machine is assembled, the installation method of the first pipe can be adjusted from intubation to one-end docking, which reduces the difficulty of assembling the filter element of the water purifier and improves the practicality of the waterway plate 100.

[0033] Among them, the detachable installation method between the PCB composite filter element 200 and the first fixing part 110 can adopt any method in the prior art for detachable fixed connection between the PCB composite filter element 200 and the waterway plate 100. The detachable installation method between the RO reverse osmosis filter element 300 and the second fixing part 120 can adopt any method in the prior art for detachable fixed connection between the RO reverse osmosis filter element 300 and the waterway plate 100. The post-activated carbon filter element 400 can be installed on the third fixing part 130 by snap-on, plug-in or other detachable fixed connection methods.

[0034] Specifically in this embodiment, the waterway plate 100 and the first fixing portion 110 , the second fixing portion 120 and the third fixing portion 130 are manufactured by integrally forming.

[0035] As shown in Figures 4 and 5, specifically in this embodiment, filter element fin protrusions 210 are provided on the opposite sides of one end of the PCB composite filter element 200 close to the first fixing part 110, and on the opposite sides of one end of the RO reverse osmosis composite filter element close to the second fixing part 120. The structure of the first fixing part 110 is the same as the structure of the second fixing part 120, and both are set as a knob-type lock fixing structure. Taking the detachable installation of the PCB composite filter element 200 and the first fixing part 110 as an example, during assembly, the filter element fin protrusion 210 is staggered with the knob-type lock fixing structure, and after the PCB composite filter element 200 is inserted into the corresponding position on the waterway plate 100, it is rotated counterclockwise to screw the filter element fin protrusion 210 into the knob-type lock fixing structure to complete the installation.

[0036] As shown in FIG. 3 and FIG. 4 , further, the third fixing portion 130 includes a support frame 131 , and the support frame 131 is used to support and fix the post-activated carbon filter element 400 .

[0037] As shown in FIG4 , optionally, a slot 132 is provided on one side of the support frame 131 away from the waterway plate 100, and opposite sides of the slot 132 extend to opposite sides of the support frame 131. The post-activated carbon filter element 400 passes through the slot 132 and is interference-fitted with the slot 132. In this way, the post-activated carbon filter element 400 can be fixed by correspondingly engaging with the slot 132 during assembly, thereby improving the practicality of the waterway plate 100.

[0038] Specifically in this embodiment, the inner wall of the slot 132 is set to be an arc surface. Along the slot depth direction of the slot 132, the width of the slot 132 first increases and then decreases. The slot width of the slot 132 is smaller than the outer diameter of the post-activated carbon filter element 400, so that the opposite sides of the slot of the slot 132 can be limited and matched with the outer side wall of the post-activated carbon filter element 400 when the post-activated carbon filter element 400 is installed in the slot 132.

[0039] As shown in FIG. 3 and FIG. 4 , in one embodiment, the third fixing portion 130 further includes a mounting frame 133 spaced apart from the support frame 131. A mounting groove 134 is provided on the side of the mounting frame 133 close to the support frame 131, and one side of the mounting groove 134 extends to the side of the mounting frame 133 away from the waterway plate 100, and a first water outlet channel 135 is provided on the bottom wall of the mounting groove 134. The first water outlet channel 135 is configured to be plugged and connected with the first water outlet 410 when one end of the post-activated carbon filter element 400 provided with the first water outlet 410 is installed in the mounting groove 134. In this way, the mounting frame 133 can also play a supporting and limiting role for the post-activated carbon filter element 400, ensuring that the post-activated carbon filter element 400 can be stably and reliably fixed on the waterway plate 100, thereby improving the reliability of the waterway plate 100.

[0040] It should be noted that the water inlet and outlet of the post-activated carbon filter element 400 adopt a quick-insert two-branch pipe design, so the installation can be completed by simply aligning the first water outlet 410 with the first water outlet channel 135 of the waterway plate 100 and directly inserting it.

[0041] Specifically in this embodiment, the first fixing portion 110 and the support frame 131 are respectively located on opposite sides of the waterway plate 100. Along the spacing direction between the support frame 131 and the mounting frame 133, the first fixing portion 110 and the second fixing portion 120 are respectively located on opposite sides of the support frame 131. Referring to the viewing angle of the waterway plate 100 in FIG1 , the PCB composite filter element 200 and the RO reverse osmosis filter element 300 are both vertically suspended below the waterway plate 100, and the post-activated carbon filter element 400 is horizontally fixed above the waterway plate 100. The PCB composite filter element 200, the RO reverse osmosis filter element 300, the post-activated carbon filter element 400 and the waterway plate 100 are compactly arranged.

[0042] As shown in FIG4 , optionally, the third fixing portion 130 further includes a reinforcing rib 136, which is located between the support frame 131 and the mounting frame 133 and is connected to the support frame 131, the support frame 131 and the waterway plate 100. In this way, the reinforcing rib 136 can improve the strength of the support frame 131 and the mounting frame 133, ensure that the support frame 131 and the mounting frame 133 can cooperate to fix the post-activated carbon filter element 400, and improve the reliability of the waterway plate 100.

[0043] The number, position and shape of the reinforcing ribs 136 can be flexibly adjusted according to actual needs.

[0044] In one embodiment, the PCB composite filter element 200 is provided with a first water inlet and a second water outlet, and the waterway plate 100 is provided with a first water inlet channel and a second water outlet channel. One end of the first water inlet channel is used to communicate with an external water source, and the other end is configured to communicate with the first water inlet when the PCB composite filter element 200 is installed on the first fixing portion 110. One end of the second water outlet channel is configured to communicate with the second water outlet when the PCB composite filter element 200 is installed on the first fixing portion 110, and the other end is used to communicate with the water inlet end of the pressure regulating pump. In this way, the pipeline connected to the PCB composite filter element 200 can be pre-installed on the waterway plate 100. When the PCB composite filter element 200 is detachably fixedly connected to the first fixing portion 110, the PCB composite filter element 200 is also connected to the corresponding device, thereby improving the assembly efficiency of the filter element.

[0045] As shown in Fig. 1 and Fig. 3, optionally, the waterway plate 100 is further provided with an installation port 140 connected to the second water outlet channel, and the installation port 140 is used to install the pressure detection component 500. In this way, the pressure detection component 500 can detect the pressure at the second water outlet of the PCB composite filter element 200, and then it can be judged whether the pressure of the waterway system of the water purifier is normal through the pressure detection result of the pressure detection component 500, and it can be indirectly judged whether the filter element is installed in place, thereby improving the practicality of the water purifier.

[0046] Optionally, the RO reverse osmosis filter element 300 is provided with a second water inlet, a third water outlet for wastewater discharge, and a fourth water outlet for filtered water discharge, the post-activated carbon filter element 400 is provided with a third water inlet, and the waterway plate 100 is provided with a second water inlet channel, a third water outlet channel and a fourth water outlet channel, one end of the second water inlet channel is used to communicate with the water outlet end of the pressure regulating pump, and the other end is configured to be connected to the second water inlet when the RO reverse osmosis filter element 300 is installed on the second fixing part 120, one end of the third water outlet channel is configured to be connected to the third water outlet when the RO reverse osmosis filter element 300 is installed on the second fixing part 120, one end of the fourth water outlet channel is configured to be connected to the fourth water outlet when the RO reverse osmosis filter element 300 is installed on the second fixing part 120, and the other end is used to be connected to the third water inlet. In this way, the pipeline connected to the RO reverse osmosis filter element 300 can be pre-installed on the waterway plate 100. When the RO reverse osmosis filter element 300 is detachably fixedly connected to the second fixing part 120, the RO reverse osmosis filter element 300 is also connected to the corresponding device, thereby improving the assembly efficiency of the filter element.

[0047] Specifically in this embodiment, one end of the fourth water outlet channel away from the RO reverse osmosis filter element 300 is connected to one end of the first tube away from the post-activated carbon filter element 400.

[0048] In one embodiment, a water purifier is provided, including a PCB composite filter element 200, an RO reverse osmosis filter element 300, a post-activated carbon filter element 400 and a waterway plate 100 in any of the above embodiments, wherein the PCB composite filter element 200, the RO reverse osmosis filter element 300 and the post-activated carbon filter element 400 are all installed on the waterway plate 100.

[0049] When the water purifier in the above embodiment is in use, the PCB composite filter element 200, the RO reverse osmosis filter element 300 and the post-activated carbon filter element 400 can be detachably installed on the waterway plate 100 through the first fixing part 110, the second fixing part 120 and the third fixing part 130 respectively, and are correspondingly connected with the waterway plate 100. There is no need to assemble and fix the post-activated carbon filter element 400 separately, which is convenient for installing and fixing the three filter elements in a smaller space inside the water purifier, thereby improving the filter element assembly efficiency of the water purifier. At the same time, the PCB composite filter element 200 and the RO reverse osmosis filter element 300, and the RO reverse osmosis filter element 300 and the post-activated carbon filter element 400 are connected through the waterway plate 100, which can reduce the use of materials such as connecting pipes and adapters, thereby reducing the cost of the water purifier.

[0050] As shown in FIG. 2 , optionally, the water purifier further includes a pressure detection component 500 , which is installed on the waterway plate 100 and is used to detect the pressure at the second water outlet of the PCB composite filter element 200 .

[0051] Optionally, the water purifier further includes a central processing unit and a water inlet solenoid valve. The water inlet solenoid valve is in communication with the first water inlet channel. The central processing unit is in communication connection with both the pressure detection unit 500 and the water inlet solenoid valve. In this way, the central processing unit can judge whether the water pressure change of the whole machine pipeline is within the normal pressure range through the result of feedback from the pressure detection unit 500, thereby judging whether the water passage system is leaking, thereby improving the practicality of the water purifier.

[0052] The central processing unit can be configured as a control structure such as a single chip microcomputer. The pressure detection element 500 can be configured as other pressure detection devices such as high and low pressure switch sensors. The central processing unit can be connected to the pressure detection element 500 and the water inlet solenoid valve through a cable, a data line, Bluetooth, a wireless communication network technology or other communication methods.

[0053] Specifically, if the pressure detected by the pressure detection component 500 is lower than the first predetermined nominal value, it means that there is no water flowing through the location of the pressure detection component 500 or there is a leak in front of it. The pressure detection component 500 feeds back an abnormal signal to the central processor, and the central processor controls the water inlet solenoid valve to close according to the abnormal signal to immediately shut down the machine and remind the maintenance personnel to perform maintenance in time. If the pressure detected by the pressure detection component 500 is higher than the second predetermined nominal value, it means that there is water flowing through the location of the pressure detection component 500 and there is no leakage or pressure drop in front of it. The second predetermined nominal value is greater than the first predetermined nominal value.

[0054] The values ​​of the first predetermined nominal value and the second predetermined nominal value can be flexibly adjusted according to the actual use needs. Specifically, the value range of the first predetermined nominal value can be 0.15±0.05Mpa. The value range of the second predetermined nominal value can be 0.25±0.05Mpa.

[0055] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0056] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0058] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it 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. Moreover, the first feature being "above", "above" and "above" the 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. The first feature being "below", "below" and "below" the 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.

[0059] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0060] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0061] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A waterway plate for installing a PCB composite filter element (200), an RO reverse osmosis filter element (300) and a post-activated carbon filter element (400), characterized in that: A first fixing portion (110) and a second fixing portion (120) are provided on one side of the waterway plate (100), and a third fixing portion (130) is provided on the other side of the waterway plate (100). The waterway plate (100) is configured to be in communication with the PCB composite filter element (200), the RO reverse osmosis filter element (300), and the post-activated carbon filter element (400) when the PCB composite filter element (200) is detachably mounted on the first fixing portion (110), the RO reverse osmosis filter element (300) is detachably mounted on the second fixing portion (120), and the post-activated carbon filter element (400) is detachably mounted on the third fixing portion (130).

2. The waterway plate according to claim 1, characterized in that: The third fixing portion (130) comprises a support frame (131), and the support frame (131) is used to support and fix the post-activated carbon filter element (400).

3. The waterway plate according to claim 2, characterized in that: A slot (132) is provided on one side of the support frame (131) away from the waterway plate (100), and opposite sides of the slot (132) extend to opposite sides of the support frame (131) respectively, and the post-activated carbon filter element (400) passes through the slot (132) and is interference-fitted with the slot (132).

4. The waterway plate according to claim 2, characterized in that: The third fixing portion (130) further comprises a mounting frame (133) spaced apart from the support frame (131); a mounting groove (134) is provided on a side of the mounting frame (133) close to the support frame (131); one side of the mounting groove (134) extends to a side of the mounting frame (133) away from the waterway plate (100); a first water outlet channel (135) is provided on a bottom wall of the mounting groove (134); the first water outlet channel (135) is configured to be plugged and matched with and communicate with the first water outlet (410) when one end of the post-activated carbon filter element (400) provided with the first water outlet (410) is mounted in the mounting groove (134).

5. The waterway plate according to claim 4, characterized in that: The third fixing portion (130) further comprises a reinforcing rib (136), wherein the reinforcing rib (136) is located between the support frame (131) and the mounting frame (133), and is connected to the support frame (131), the support frame (131) and the waterway plate (100).

6. The waterway plate according to any one of claims 1 to 5, characterized in that: The PCB composite filter element (200) is provided with a first water inlet and a second water outlet, and the waterway plate (100) is provided with a first water inlet channel and a second water outlet channel; one end of the first water inlet channel is used to communicate with an external water source, and the other end is configured to communicate with the first water inlet when the PCB composite filter element (200) is installed on the first fixing part (110); one end of the second water outlet channel is configured to communicate with the second water outlet when the PCB composite filter element (200) is installed on the first fixing part (110), and the other end is used to communicate with the water inlet end of a pressure regulating pump.

7. The waterway plate according to claim 6, characterized in that: The waterway plate (100) is further provided with a mounting opening (140) communicating with the second water outlet channel, and the mounting opening (140) is used for mounting a pressure detection component (500).

8. The waterway plate according to any one of claims 1 to 5, characterized in that: The RO reverse osmosis filter element (300) is provided with a second water inlet, a third water outlet for discharging waste water, and a fourth water outlet for discharging filtered water; the post-activated carbon filter element (400) is provided with a third water inlet; the waterway plate (100) is provided with a second water inlet channel, a third water outlet channel, and a fourth water outlet channel; one end of the second water inlet channel is used to communicate with the water outlet end of the pressure regulating pump, and the other end is configured to communicate with the second water inlet when the RO reverse osmosis filter element (300) is installed on the second fixing part (120); one end of the third water outlet channel is configured to communicate with the third water outlet when the RO reverse osmosis filter element (300) is installed on the second fixing part (120); one end of the fourth water outlet channel is configured to communicate with the fourth water outlet when the RO reverse osmosis filter element (300) is installed on the second fixing part (120), and the other end is used to communicate with the third water inlet.

9. A water purifier, characterized in that: It comprises a PCB composite filter element (200), an RO reverse osmosis filter element (300), a post-activated carbon filter element (400), and a waterway plate (100) according to any one of claims 1 to 8, wherein the PCB composite filter element (200), the RO reverse osmosis filter element (300), and the post-activated carbon filter element (400) are all installed on the waterway plate (100).

10. The water purifier according to claim 9, characterized in that: The water purifier further comprises a pressure detection component (500), wherein the pressure detection component (500) is mounted on the waterway plate (100) and is used to detect the pressure at the second water outlet of the PCB composite filter element (200).

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