Waterway quick connection module, waterway board and water purifying and drinking machine

Abstract

The utility model discloses a waterway quick connection module, a waterway board and a water purifying and drinking machine, and belongs to the field of water purifying and drinking equipment. A water port connecting end is arranged on a waterway board, and a quick connecting module is detachably mounted on the water port connecting end; the mounting cavity in the joint main body is correspondingly communicated with the water gap inner cavity of the water gap connecting end; the pipeline connecting part is inserted into the water gap inner cavity in a matched mode, a sealing ring is arranged in the water gap inner cavity, and when the pipeline is downwards inserted into a pipe cavity of the pipeline connecting part, the two radial sides of the sealing ring can abut against the inner wall of the water gap inner cavity and the outer wall of the pipeline to achieve sealing. Effective sealing of the inserted pipeline and the inner cavity of the water gap is achieved through the single sealing point, compared with a traditional quick connector mode, the quick connector material cost and the sealing ring cost are reduced, the overall cost is lower, and the risk of sealing leakage is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and more specifically, to a water circuit quick-connect module, a water circuit board, and a water purifier. Background Technology

[0002] Water purification equipment is now widely used. The filter element is the core component of this equipment, typically mounted on a water manifold. This water manifold is then used in conjunction with various valve assemblies, pump assemblies, and other functional components to achieve multi-channel distribution of raw water and purified water. These functional components are connected to the water manifold via pipes. Currently, quick-connect fittings are commonly used to connect the water manifold and the various pipes. The two ends of the quick-connect fitting connect to the pipes and the water manifold respectively; specifically, the bottom of the quick-connect fitting provides a sealing connection to the water manifold, while the top is used for a sealing installation with the pipes.

[0003] Currently, various quick-connect structures have become widely used in the market as general-purpose accessories. However, the overall processing and usage costs of quick-connects remain relatively high, and the multi-point sealing problem at the joint has always been a major concern. In recent years, the industry has successively introduced various new quick-connect methods, but there is still considerable room for improvement in terms of overall processing costs and ease of installation. Utility Model Content

[0004] 1. Technical problem to be solved by the utility model

[0005] The purpose of this utility model is to address the issue that the processing and usage costs of the quick-connect structure of the water circuit board in the existing technology are still relatively high. This utility model proposes to provide a quick-connect module for water circuits, a water circuit board, and a water purifier. The quick-connect module structure of this utility model is effectively simplified, and the processing and usage costs are effectively reduced. It is also convenient to install, meets the sealing requirements, and is easy to promote and apply.

[0006] 2. Technical Solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] This utility model discloses a quick-connect module for water circuits. The quick-connect module includes a connector body with a fixed connection part for detachable connection to the water inlet of a water circuit board. The connector body has an installation cavity inside, in which a pipe connection part is installed. The pipe connection part has a cavity for pipe insertion. Multiple sets of slots with a wall thickness extending downward to the bottom are spaced apart on the lower circumferential wall of the pipe connection part. Elastic compression members are provided around the outer periphery of the slots on the circumferential wall, so that when a pipe is inserted into the cavity, the surrounding cavity walls can clamp the pipe.

[0009] Furthermore, multiple sets of inner contact walls are provided circumferentially around the inner wall of the pipe connection part. The inner contact walls protrude from the inner wall of the pipe connection part and are used to make contact with the outer wall of the pipe.

[0010] Alternatively, the upper part of the inner wall of the pipe connection is provided with multiple sets of through holes that penetrate the wall thickness in the circumferential direction. These through holes are located above the slot, and the inner wall of the pipe connection is used to make contact with the outer wall of the pipe.

[0011] This utility model also provides a water circuit board, which has a water inlet connection end, on which the quick-connect module described above can be detachably installed; the mounting cavity inside the connector body is connected to the water inlet cavity of the water inlet connection end; the pipe connection part is inserted into the water inlet cavity, and a sealing ring is provided in the water inlet cavity. When the pipe is inserted downward into the pipe connection part cavity, the sealing ring can abut against the inner wall of the water inlet cavity and the outer wall of the pipe on both radial sides to achieve a seal.

[0012] Furthermore, the water inlet connection end of the water circuit board includes a water inlet part and a connection part; wherein the water inlet cavity is opened inside the water inlet part, and the connection part is located on both sides of the water inlet part; a fixed connection part is provided on both sides of the connector body, and corresponding mounting holes are opened on the fixed connection part and the connection part, and the connection part is fastened by the connector.

[0013] Furthermore, a limiting wall surrounds the bottom of the fixed connection part along its outer peripheral edge, and the limiting wall extends downward to surround the outer periphery of the connection part of the water channel plate.

[0014] Furthermore, at the position corresponding to the inner cavity of the sprue at the sprue connection end on the bottom surface of the connector body, a downwardly extending protruding ring wall is provided around the circumference, and the protruding ring wall is fitted into the inner cavity of the sprue at the sprue connection end.

[0015] Furthermore, the top of the pipe connection is provided with an upper boss along the circumference, the upper boss is located above the mounting cavity of the connector body, and an anti-fall clamp is provided between the upper boss and the end face of the mounting cavity of the connector body.

[0016] Furthermore, a limiting boss protruding radially outward is formed at the lower part of the pipe connection, and a limiting step is formed correspondingly above the limiting boss in the mounting cavity of the joint body. The limiting step extends radially inward to the inner side of the outer wall of the limiting boss to prevent the pipe connection from being pulled away from the joint body.

[0017] Furthermore, the limiting boss is arranged circumferentially around the lower part of the pipe connection, and the bottom end of the limiting boss has a tapered guide section with a gradually decreasing cross-sectional area. The installation cavity opening of the joint body is provided with a guide inclined wall that cooperates with the guide section.

[0018] Furthermore, the inner wall of the mounting cavity of the connector body is provided with a downward inclined wall below the limiting step. The downward inclined wall gradually slopes from top to bottom away from the pipe connection part, and the bottom edge of the downward inclined wall extends beyond the limiting boss. The limiting boss is located below the downward inclined wall.

[0019] This utility model also provides a water purifier, including the water circuit board as described above, on which a filter element assembly is installed, and multiple quick-connect modules are provided, which are connected to the pipes of the functional components through the quick-connect modules.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0022] (1) In this utility model, after the quick-connect module is fixedly installed at the water inlet connection end, the bottom end of the pipe connection part can extend to press the sealing ring below, so that when the pipe is inserted downward into the pipe connection part cavity, the radial sides of the sealing ring can abut against the inner wall of the water inlet cavity and the outer wall of the pipe to achieve a seal. That is, the insertion pipe and the water inlet cavity are effectively sealed by using a single sealing point. Compared with the traditional quick-connect method, the cost of quick-connect material and sealing ring is reduced. Not only is the overall cost lower, but the risk of sealing leakage is also effectively reduced.

[0023] (2) In the water circuit board of this utility model, the bottom of the fixed connection part is surrounded by a limiting wall along the outer peripheral edge, so that the top of the connection part of the water inlet connection end can be embedded in the internal area enclosed by the limiting wall, which is conducive to the quick positioning and installation of the connector body during installation.

[0024] (3) The water circuit board of this utility model has multiple sets of inner contact walls arranged around the inner wall of the pipe connection part along the circumference. The inner contact walls protrude from the inner wall of the pipe connection part and make multi-point contact with the pipe, which helps to reduce installation resistance. Especially when there is gas in the inner cavity, the contact wall makes contact with the pipe, so that the outer wall of the pipe and the inner wall of the pipe connection part can reserve an exhaust channel, which is conducive to the exhaust of internal gas and further realizes rapid installation and labor-saving installation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the water channel board in the embodiment;

[0026] Figure 2 This is a schematic diagram of the installation state structure of the waterway quick-connect module in the embodiment;

[0027] Figure 3 for Figure 2 Internal cross-sectional structural diagram;

[0028] Figure 4 This is a schematic diagram of the waterway quick-connect module in the embodiment;

[0029] Figure 5 This is a schematic diagram of the main structure of the waterway quick-connect module in the embodiment;

[0030] Figure 6 for Figure 5 Internal cross-sectional structural diagram;

[0031] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point A in the middle.

[0032] Water circuit quick-connect module, water circuit board and water purifier

[0033] Explanation of the labels in the diagram:

[0034] 300. Water channel plate; 301. Water inlet; 302. Connecting part; 303. Water inlet inner cavity; 304. Sealing ring;

[0035] 100. Quick-connect module; 110. Connector body; 111. Protruding annular wall; 112. Guide inclined wall; 113. Downward inclined wall; 114. Limiting step;

[0036] 120. Fixed connection part; 121. Mounting hole; 122. Limiting wall;

[0037] 130. Pipe connection; 131. Main body section; 132. Slot; 133. Upper boss; 134. Inner contact wall; 135. Limiting boss; 136. Guide section. Detailed Implementation

[0038] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0039] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. The terms "first," "second," "third," and "fourth" should also be interpreted broadly, merely distinguishing feature names and not indicating a specific sequential relationship. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The present invention will be further described below with reference to the embodiments.

[0042] Example

[0043] Combination Figures 1-7 As shown, this embodiment provides a quick-connect water circuit module. The quick-connect module 100 includes a connector body 110, and a fixed connection part 120 is provided on the connector body 110. The fixed connection part 120 is used to detachably connect to the water outlet connection end of the water circuit board 300. The connector body 110 has an installation cavity inside, which is used to communicate with the water outlet inner cavity 303 of the water outlet connection end of the water circuit board 300. A pipe connection part 130 is installed in the installation cavity. The pipe cavity of the pipe connection part 130 is used for pipe insertion. Multiple sets of slots 132 with a wall thickness through the pipe connection part 130 are opened at intervals on the lower circumferential wall surface of the pipe connection part 130 and extend downward to the bottom. An elastic tightening member is provided around the outer periphery of the slots 132 on the circumferential wall surface so that when a pipe is inserted into the cavity, the surrounding cavity wall can clamp the pipe. By creating the slot 132, multiple sets of openings extending vertically are formed on the lower part of the circumferential wall of the pipe connection 130. This provides a certain degree of contractile elasticity between the walls on both sides of the openings. An elastic compression member is provided on the outer side of the circumferential wall. For example, a snap ring structure can be used and fitted onto the outer area of ​​the slot 132, or other commonly used elastic components in the industry can be used. The snap ring can be integrally formed with the pipe connection 130. To facilitate the display of the slot 132 structure, the snap ring structure is not shown in the attached drawings. The snap ring allows the circumferential walls with an opening at the bottom to contract inwards. When a pipe is inserted into the inner cavity of the pipe connector 130, the outer wall of the pipe presses outwards against the lower circumferential wall of the pipe connector 130, causing the circumferential wall to expand outwards and push the snap ring aside. The snap ring, under its elastic restoring action, tends to retract inwards, compressing the circumferential wall. This creates a pre-tightening compression on the inserted pipe, ensuring a tight seal between the pipe and the inner wall of the pipe connector 130, preventing it from easily coming loose. Furthermore, this pipe installation method is convenient; the pipe can be directly inserted downwards for quick and secure fastening.

[0044] Furthermore, to ensure the positional stability of the pipeline after installation, a limiting part is provided between the pipeline connection 130 and the connector body 110 to limit the height displacement of the pipeline connection 130 within the installation cavity. The limiting part can be implemented in various ways. For example, in some embodiments, an upper boss 133 can be circumferentially arranged around the top of the pipeline connection 130, located above the installation cavity of the connector body 110. After the pipeline is installed and sealed in place inside the pipeline connection 130, an anti-fall clip can be provided between the upper boss 133 and the end face of the installation cavity of the connector body 110. The anti-fall clip is not shown in the accompanying drawings. By setting the anti-fall clip, the height position of the pipeline connection 130 can be effectively prevented from shifting, effectively limiting the pipeline connection 130 vertically and ensuring its positional stability, thereby ensuring the sealing stability between it and the water circuit board 300.

[0045] This embodiment, while ensuring a tight clamping effect between the pipe connection 130 and the pipe, further optimizes and combines... Figure 7 As shown, a limiting boss 135 protruding radially outward is formed at the lower part of the pipe connection portion 130. A limiting step 114 is correspondingly formed above the limiting boss 135 in the mounting cavity of the connector body 110. The limiting step 114 extends radially inward to the inner side of the outer wall of the limiting boss 135 to prevent the pipe connection portion 130 from being pulled away from the connector body 110. The cooperation between the limiting step 114 and the limiting boss 135 can also effectively limit the height position of the pipe connection portion 130. More importantly, when the installed and clamped pipe needs to be pulled out from the pipe connection portion 130, the limiting step 114 can prevent the pipe connection portion 130 from being pulled out of the connector body 110 by the pipe due to the obstruction of the limiting boss 135, thereby avoiding the problem of the pipe connection portion 130 and the pipe being pulled out simultaneously.

[0046] In some embodiments, to facilitate the flexible installation of the pipe connection 130, the pipe connection 130 and the connector body 110 can be detachably installed with a movable fit; that is, the pipe connection 130 and the connector body 110 can be designed as independent components, and the pipe connection 130 can be removed and placed from the connector body 110. To facilitate rapid installation, in some embodiments, further, [the following is added]... Figure 7As shown, the limiting boss 135 is arranged circumferentially around the lower part of the pipe connection 130, and the bottom end of the limiting boss 135 has a tapered guide section 136 with a gradually decreasing cross-sectional area. The installation cavity opening of the connector body 110 is provided with a guide inclined wall 112 that cooperates with the guide section 136. When the pipe connection 130 is installed downward, the cooperation between the guide section 136 and the guide inclined wall 112 can enable quick alignment and installation. The circumferential sidewall of the pipe connection 130 has a certain shrinkage elasticity. After shrinking and squeezing downward through the limiting step 114, it returns to its original position until it is installed in place. Furthermore, in some embodiments, a downwardly inclined wall 113 is provided on the inner wall of the mounting cavity of the connector body 110 below the limiting step 114. The downwardly inclined wall 113 gradually slopes downwards and away from the pipe connection portion 130. After the pipe connection portion 130 is installed in place, the bottom edge of the downwardly inclined wall 113 extends beyond the limiting boss 135, which is located below the downwardly inclined wall 113. The design of the downwardly inclined wall 113 provides a certain height gap between the limiting boss 135 and the limiting step 114, facilitating the quick reset and ejection of the limiting boss 135 during installation, making the installation process more convenient. It also allows the pipe connection portion 130 to have a certain upward lifting space after the external pipe is inserted and sealed in place, allowing the upper boss 133 to disengage from the mounting cavity end face of the connector body 110, thereby enabling the installation of an anti-fall clip between them for effective limiting. Figure 7 As shown, the pipe connection 130 can be divided into a main body section 131. The top of the main body section 131 is provided with an upper boss 133, and the lower part of the main body section 131 is provided with a limiting boss 135. There is still a certain installation gap between the main body section 131 and the limiting step 114.

[0047] This embodiment also provides a water circuit board to further illustrate the installation and use of the quick-connect module 100 on the water circuit board 300, in conjunction with... Figures 1-3 As shown, the water circuit board 300 has a water inlet connection end, on which the quick-connect module 100 as described above can be detachably installed; the mounting cavity inside the connector body 110 is connected to the water inlet cavity 303 of the water inlet connection end; the pipe connection part 130 is inserted into the water inlet cavity 303, and a sealing ring 304 is provided in the water inlet cavity 303. When the pipe is inserted downward into the pipe connection part 130 cavity, the sealing ring 304 can abut against the inner wall of the water inlet cavity 303 and the outer wall of the pipe on both radial sides to achieve a seal.

[0048] Combination Figure 3As shown, in this embodiment, the inner cavity 303 of the sprue is provided with a stepped surface for placing the sealing ring 304. At least one set of sealing rings 304 is installed on the stepped surface. The external pipe is inserted into the pipe connection part 130, and the bottom end of the pipe extends downward to below the stepped surface where the sealing ring 304 is located. That is, the bottom end of the pipe is inserted to the lower part of the inner cavity 303 of the sprue. At this time, the pipe is locked by the pipe connection part 130 and will not easily shake. The outer wall of the sealing ring 304 is squeezed and tightly fits the inner wall of the inner cavity 303 of the sprue. The inner wall of the sealing ring 304 is tightly fitted to the outer wall of the pipe. That is, the inner wall of the inner cavity 303 of the sprue and the outer wall of the external pipe are effectively sealed by the sealing ring 304. The sealing rings 304 in the same position fully realize the effective sealing between the inserted pipe and the inner cavity 303 of the sprue. Currently, the most common quick-connect structure on the market requires sealing points between the outer wall of the quick-connect's bottom end and the inner cavity 303 of the water inlet, as well as between the inserted pipe and the inner wall of the quick-connect. This not only increases costs but also means that leakage at any sealing point will lead to overall poor sealing. This embodiment, through a novel quick-connect design, only requires sealing at the same location, resulting in lower costs and effectively reducing the risk of leakage. Compared to traditional quick-connect structures, the quick-connect module 100 in this embodiment is a thin plate, with a simpler structure, requiring less processing material and occupying less space. This facilitates optimized space layout on the water circuit board 300 and reduces costs.

[0049] Furthermore, in some embodiments, the water inlet connection end of the water circuit board 300 specifically includes a water inlet portion 301 and a connecting portion 302; wherein the water inlet cavity is opened inside the water inlet portion 301, and the connecting portion 302 is provided on both sides of the water inlet portion 301, specifically symmetrically distributed on both sides; correspondingly, the two sides of the connector body 110 are respectively provided with fixed connecting portions 120, and the fixed connecting portions 120 and the connecting portion 302 are respectively provided with corresponding mounting holes 121, and are fastened by connecting parts, specifically by bolt fastening.

[0050] To ensure the accuracy of the installation position of the connector body 110 and the water inlet connection end, in some embodiments, the bottom of the fixed connection portion 120 is further surrounded by a limiting wall 122 along its outer peripheral edge, and the limiting wall 122 extends downward to surround the outer periphery of the connection portion 302 of the water channel plate 300. For example... Figure 7 As shown, the top of the connecting part 302 can be embedded inward into the internal area enclosed by the limiting wall 122, so that the connecting part 302 can quickly correspond to the hole on the fixed connecting part 120 during installation, thereby realizing the rapid positioning and installation of the connector body 110.

[0051] In some embodiments, it is further preferred that a downwardly extending protruding annular wall 111 is provided circumferentially around the bottom surface of the connector body 110 at a position corresponding to the sprue cavity 303 of the sprue connection end. The protruding annular wall 111 fits into the sprue cavity 303 of the sprue connection end. Specifically, a guide slope can be provided at the top opening end of the sprue cavity 303 to facilitate the insertion of the protruding annular wall 111. The provision of the protruding annular wall 111 also helps to achieve rapid positioning and engagement with the sprue cavity 303.

[0052] To facilitate the flexible assembly and disassembly of external pipes, in some embodiments, multiple sets of inner contact walls 134 are provided circumferentially around the inner wall of the pipe connection portion 130, such as... Figure 2 As shown, the inner contact wall 134 protrudes from the inner wall of the pipe connection 130 and is used to mate with the outer wall of the pipe. In practice, if the pipe is directly installed to mate with the inner wall of the pipe connection 130, it is easy to encounter situations where the installation resistance is large, the installation is laborious, and the adaptation to processing errors is poor. By setting multiple sets of inner contact walls 134, multiple points of contact with the pipe are made, which helps to reduce the installation resistance and has a stronger adaptability to the processing errors of the pipe connection 130 or the pipe size. Especially when there is gas in the inner cavity, the contact between the inner contact wall 134 and the pipe allows for the reservation of an exhaust channel between the outer wall of the pipe and the inner wall of the pipe connection 130, which is conducive to the discharge of internal gas and further realizes rapid and labor-saving installation. Similarly, multiple sets of through holes with a wall thickness can be provided around the upper part of the inner wall of the pipe connection 130 as reserved exhaust channels. These through holes are located above the slot 132. When the external pipe is inserted inward, the reserved through holes can be used to effectively exhaust air outward, thereby reducing installation resistance and achieving quick and labor-saving installation.

[0053] This embodiment also provides a water purifier, including the water circuit board 300 as described above. A filter assembly is installed on the water circuit board 300, and multiple quick-connect modules 100 are provided on the water circuit board 300. These quick-connect modules 100 are connected to the pipes of functional components, including various valve structures or pump structures, to distribute and circulate water within the water circuit board 300. The water purifiers of this embodiment include, but are not limited to, countertop water purifiers, horizontal water purifiers, under-sink water purifiers, wall-mounted water purifiers, etc., all of which can utilize the aforementioned quick-connect modules 100 to achieve convenient pipe installation.

[0054] The scope of protection of this utility model is defined only by the claims. Thanks to the teachings of this utility model, those skilled in the art will readily recognize that alternative structures to the disclosed structure can be used as feasible alternative implementations, and that the disclosed implementations can be combined to produce new implementations, which also fall within the scope of the appended claims.

Claims

1. A quick-connect module for waterways, characterized in that: The quick-connect module (100) includes a connector body (110), and a fixed connection part (120) is provided on the connector body (110). The fixed connection part (120) is used to detachably connect to the water inlet connection end of the water circuit board (300). The connector body (110) has an installation cavity inside, and a pipe connection part (130) is installed in the installation cavity. The pipe cavity of the pipe connection part (130) is used for pipe insertion. Multiple sets of slots (132) with a wall thickness through the pipe and extending downward to the bottom are opened at intervals on the lower circumferential wall surface of the pipe connection part (130). An elastic tightening member is provided around the outer periphery of the slot (132) on the circumferential wall surface so that when a pipe is inserted into the cavity, the surrounding cavity wall can clamp the pipe.

2. The waterway quick-connect module according to claim 1, characterized in that: Multiple sets of inner contact walls (134) are provided around the inner wall of the pipe connection part (130) in the circumferential direction. The inner contact walls (134) protrude from the inner wall of the pipe connection part (130) and are used to make contact with the outer wall of the pipe. Alternatively, the upper part of the inner wall of the pipe connection part (130) is provided with multiple sets of through holes that penetrate the wall thickness in the circumferential direction. The through holes are located above the slot (132), and the inner wall of the pipe connection part (130) is used to make contact with the outer wall of the pipe.

3. A water circuit board, characterized in that: The water circuit board (300) has a water inlet connection end, and a quick-connect module (100) as described in any one of claims 1-2 can be detachably installed on the water inlet connection end; the mounting cavity inside the connector body (110) is connected to the water inlet cavity (303) of the water inlet connection end; the pipe connection part (130) is inserted into the water inlet cavity (303), and a sealing ring (304) is provided in the water inlet cavity (303). When the pipe is inserted downward into the pipe connection part (130) cavity, the sealing ring (304) can abut against the inner wall of the water inlet cavity (303) and the outer wall of the pipe on both radial sides to achieve a seal.

4. A water channel board according to claim 3, characterized in that: The water inlet connection end of the water circuit board (300) includes a water inlet part (301) and a connecting part (302); wherein the water inlet cavity (303) is opened in the water inlet part (301), and the connecting part (302) is located on both sides of the water inlet part (301); the two sides of the connector body (110) are respectively provided with fixed connecting parts (120), and the fixed connecting parts (120) and the connecting parts (302) are respectively provided with corresponding mounting holes (121), and are fastened by connecting parts.

5. A water channel board according to claim 4, characterized in that: The bottom of the fixed connection part (120) is surrounded by a limiting wall (122) along its outer peripheral edge, and the limiting wall (122) extends downward to the outer periphery of the connection part (302) surrounding the water channel plate (300).

6. A water channel board according to claim 3, characterized in that: The bottom surface of the connector body (110) is provided with a downwardly extending protruding ring wall (111) at the position corresponding to the inner cavity (303) of the water inlet connection end, and the protruding ring wall (111) is fitted into the inner cavity (303) of the water inlet connection end.

7. A water channel board according to claim 3, characterized in that: The top of the pipe connection part (130) is provided with an upper boss (133) around the circumference. The upper boss (133) is located above the mounting cavity of the connector body (110). An anti-fall clamp is provided between the upper boss (133) and the end face of the mounting cavity of the connector body (110).

8. A water channel board according to claim 3, characterized in that: The lower part of the pipe connection (130) has a limiting boss (135) that protrudes radially outward. The mounting cavity of the connector body (110) has a corresponding limiting step (114) above the limiting boss (135). The limiting step (114) can be locked above the limiting boss (135) to prevent the pipe connection (130) from being pulled away from the connector body (110).

9. A water channel board according to claim 8, characterized in that: The limiting boss (135) is arranged around the lower part of the pipe connection (130) in a circumferential direction, and the bottom end of the limiting boss (135) has a tapered guide section (136) with a cross-sectional area that gradually shrinks downward. The mounting cavity opening of the connector body (110) is provided with a guide inclined wall (112) that cooperates with the guide section (136). Or / and, a downward inclined wall (113) is provided on the inner wall of the mounting cavity of the connector body (110) below the limiting step (114). The downward inclined wall (113) gradually slopes from top to bottom away from the pipe connection part (130), and after the pipe connection part (130) is installed in place, the bottom edge of the downward inclined wall (113) extends beyond the limiting boss (135).

10. A water purifier, characterized in that: Includes the water circuit board (300) as described in claims 3-9, on which a filter element assembly is installed, and on which multiple quick-connect modules (100) are provided, and which are connected to the pipes of the functional components through the quick-connect modules (100).

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