Water purification equipment and sealing ring and waterway board assembly thereof

Abstract

The utility model relates to the technical field of water purification equipment, particularly provides water purification equipment and a sealing ring and a waterway board assembly thereof, and aims to solve the problem that the sealing ring of the conventional water purification equipment is easy to shift and fall off from a mounting groove. In order to achieve the purpose, the sealing ring of the water purification equipment comprises an annular sealing ring body, the part, close to the bottom edge line of the sealing ring body, of the sealing ring body extends downwards to form a first anti-disengagement structure, and the first anti-disengagement structure extends downwards to form a second anti-disengagement structure in the state that installation is completed. The first anti-falling structure is suitable for being matched with a first anti-falling groove formed in a waterway plate assembly of the water purification equipment. According to the utility model, the first anti-falling structure is arranged, so that the sealing ring can be stably fixed on the waterway board assembly of the water purification equipment, the sealing ring is prevented from shifting and falling off, and the waterway board assembly of the water purification equipment is prevented from leaking water.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, and particularly provides a water purification equipment, a sealing ring thereof and a water circuit board assembly. Background Art

[0002] The water purification equipment can perform multiple filtrations on water bodies to make the water bodies meet the direct drinking standard. Among them, the under-counter reverse osmosis water purifier is a relatively commonly used water purification equipment. Due to the complex internal water circuit of the under-counter reverse osmosis water purifier, an integrated water circuit board is mostly used for water circuit integration. The filter bottle is installed on the water circuit board through a rotating disk and a filter bottle seat so that the filter bottle communicates with the connection port on the water circuit board. Among them, a sealing ring installation groove is arranged at the connection port of the water circuit board, and an axial sealing fit is achieved between the bottom surface of the rotating disk and the mating surface of the water circuit board through the sealing ring in the installation groove to avoid water leakage at the connection port.

[0003] However, the sealing ring of the existing water purification equipment is prone to shift out of the installation groove, resulting in sealing failure and thus water leakage at the connection port. For example, the following situations may occur:

[0004] 1. Since the sealing ring is designed with an outer circle pre-compression amount, the outer circle diameter of the sealing ring is larger than the outer circle diameter of the installation groove. However, this easily causes the previously installed sealing ring to pop out of the installation groove when the rotating disk is assembled after the sealing ring is installed first.

[0005] 2. When the user replaces the filter bottle, the filter bottle needs to be rotated, and the filter bottle drives the rotating disk to rotate together. During the rotation of the rotating disk, the bottom surface of the rotating disk applies a rotational force to the sealing ring, resulting in the sealing ring shifting out of the installation groove.

[0006] 3. When the water purification equipment is in a special working condition and the internal pressure of the water circuit system is relatively high, the sealing ring will be subjected to a strong internal pressure, resulting in the sealing ring shifting out of the installation groove. Summary of the Utility Model

[0007] The utility model aims to solve the above technical problems, that is, to solve the problem that the sealing ring of the existing water purification equipment is prone to shift out of the installation groove.

[0008] In a first aspect, the utility model provides a sealing ring for a water purification equipment. The sealing ring includes an annular sealing ring body, and a first anti-displacement structure extends downward from a part of the sealing ring body close to its bottom edge line. In the installed state, the first anti-displacement structure is adapted to be matched with a first anti-displacement groove formed on the water circuit board assembly of the water purification equipment.

[0009] In some feasible embodiments of the above sealing ring for a water purification equipment, the first anti-displacement structure is arranged continuously or discontinuously along the circumference of the sealing ring body.

[0010] In some feasible embodiments of the sealing ring of the above-mentioned water purification device, a second anti-disengagement structure is also formed by radially extending outward a part of the sealing ring body near its outer edge, and the second anti-disengagement structure is adapted to be fitted with a second anti-disengagement groove formed on the water circuit board assembly of the water purification device.

[0011] In some feasible embodiments of the sealing ring of the above-mentioned water purification device, the second anti-disengagement structure is arranged continuously or discontinuously along the circumference of the sealing ring body.

[0012] In some feasible embodiments of the sealing ring of the above-mentioned water purification device, a third anti-disengagement structure is also formed by radially extending inward a part of the sealing ring body near its inner edge, and the third anti-disengagement structure is adapted to be fitted with a third anti-disengagement groove formed on the water circuit board assembly of the water purification device.

[0013] In some feasible embodiments of the sealing ring of the above-mentioned water purification device, the third anti-disengagement structure is arranged continuously or discontinuously along the circumference of the sealing ring body.

[0014] In a second aspect, the present utility model provides a water circuit board assembly of a water purification device. The water circuit board assembly includes a water circuit board body. The water circuit board body is provided with at least one filter bottle installation position. The filter bottle installation position is provided with at least one first filter bottle connection port. The first filter bottle connection port is provided with an installation groove, and the installation groove is adapted to be fitted with the sealing ring of the water purification device described in any one of the above.

[0015] In some feasible embodiments of the water circuit board assembly of the above-mentioned water purification device, the installation groove includes an installation groove body adapted to be fitted with the sealing ring body. The installation groove further includes a first anti-disengagement groove formed by recessing downward from the inner bottom surface of the installation groove body, and the first anti-disengagement groove is adapted to be fitted with the first anti-disengagement structure.

[0016] In some feasible embodiments of the water circuit board assembly of the above-mentioned water purification device, a part of the installation groove body near its outer edge is recessed outward to form a second anti-disengagement groove; and / or

[0017] A part of the installation groove body near its inner edge is recessed inward to form a third anti-disengagement groove.

[0018] In a third aspect, the present utility model provides a water purification device, and the water purification device includes the water circuit board assembly of the water purification device described in any one of the above.

[0019] In the case of adopting the above technical solutions, by setting the first anti-disengagement structure, the present utility model enables the sealing ring to be firmly fixed on the water circuit board assembly of the water purification device, thereby preventing the sealing ring from shifting and disengaging, and avoiding water leakage of the water circuit board assembly of the water purification device. Brief Description of the Drawings

[0020] The preferred embodiments of the present utility model will be described below in conjunction with the accompanying drawings, in which:

[0021] Figure 1 is a schematic structural view of the sealing ring in the first embodiment of the present utility model.

[0022] Figure 2 is a schematic cross-sectional structural view of the sealing ring in the first embodiment of the present utility model.

[0023] Figure 3 is a schematic structural view of the water circuit board assembly in the first embodiment of the present utility model, in which the components at the left filter bottle installation position are exploded and separated.

[0024] Figure 4 is a schematic top view structural view of the water circuit board body in the first embodiment of the present utility model.

[0025] Figure 5 is an assembly schematic view of the sealing ring and the water circuit board body in the first embodiment of the present utility model, in which the sealing ring at the left filter bottle installation position is exploded and separated.

[0026] Figure 6 is a schematic cross-sectional structural view of the assembled state of the sealing ring and the water circuit board body in the first embodiment of the present utility model, in which the sealing ring at the right first filter bottle connection port is exploded and separated.

[0027] Figure 7 is Figure 6 an enlarged schematic view of area A in

[0028] Figure 8 is a schematic cross-sectional structural view of the sealing ring in the second embodiment of the present utility model.

[0029] Figure 9 is a schematic cross-sectional structural view of the assembled state of the sealing ring and the water circuit board body in the second embodiment of the present utility model, in which the sealing ring at the right first filter bottle connection port is exploded and separated.

[0030] Figure 10 is Figure 9 an enlarged schematic view of area B in

[0031] List of Reference Numerals:

[0032] 1 - Sealing ring; 10 - Sealing ring body; 11 - First anti - detachment structure; 12 - Second anti - detachment structure; 13 - Third anti - detachment structure; 2 - Water circuit board body; 21 - Filter bottle installation position; 211 - First filter bottle connection port; 212 - Second filter bottle connection port; 213 - Installation groove; 2130 - Installation groove body; 2131 - First anti - detachment groove; 2132 - Second anti - detachment groove; 2133 - Third anti - detachment groove; 3 - Rotating disk; 4 - Filter bottle seat. Detailed implementation manners

[0033] The preferred implementation manners of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model. As described in the following embodiments, although taking an under - counter reverse osmosis water purifier as an example for illustration, this solution is also applicable to other water purifying devices that require a water circuit board.

[0034] It should be noted that in the description of the present utility model, the terms "upper", "lower", "inner", "outer", etc. indicating directions or position relationships are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0035] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] It should be noted that the "approximately formed as" in the present utility model is considered from aspects such as the manufacturing precision of the mold, the demolding process, and reducing stress concentration. It allows a certain degree of fine - tuning of the cross - section of the anti - detachment structure relative to the square cross - section. For example, in order to reduce stress concentration, a certain fillet or chamfer is set at the edge line of the anti - detachment structure. Another example is that due to the limitation of the processing technology, a certain minute wavy line will be formed on the edge line or surface of the anti - detachment structure, resulting in a non - square cross - section and other situations. These minute adjustments do not deviate from the main idea of the present utility model and should be included in the protection scope of the present utility model.

[0037] In addition, the cross-section in the present utility model refers to the section formed after cutting the sealing ring 1 with a plane perpendicular to the plane where the sealing ring 1 is located and passing through the center line of the sealing ring 1.

[0038] In addition, the adaptation in the present utility model can be a perfect fit in terms of size, or an interference fit, etc.

[0039] Embodiment 1

[0040] As Figure 1 and Figure 2 shown, the embodiment of the present utility model provides a sealing ring 1 for an under-sink reverse osmosis water purifier. The sealing ring 1 includes an annular sealing ring body 10. As Figure 2 shown, the cross-section of the sealing ring body 10 is formed as or approximately formed as a circular cross-section, and the sealing ring body 10 is adapted to the installation groove body 2130 of the water circuit board assembly of the under-sink reverse osmosis water purifier.

[0041] As Figure 1 and Figure 2 shown, a part of the sealing ring body 10 near its bottom edge extends downward to form a first anti-displacement structure 11. The first anti-displacement structure 11 is continuously arranged along the circumference of the sealing ring body 10, or the first anti-displacement structure 11 can also be discontinuously arranged along the circumference of the sealing ring body 10; specifically, in this embodiment, the first anti-displacement structure 11 is an annular structure arranged around the center line of the sealing ring body 10, that is, the center line of the first anti-displacement structure 11 is concentric with the center line of the sealing ring body 10. As Figure 2 shown, the cross-section of the first anti-displacement structure 11 is formed as or approximately formed as a square cross-section. In the state where the sealing ring 1 is installed on the water circuit board assembly, the first anti-displacement structure 11 is adapted to the first anti-displacement groove 2131 formed on the water circuit board assembly of the under-sink reverse osmosis water purifier.

[0042] For the sealing ring 1 of the under-sink reverse osmosis water purifier provided by the embodiment of the present utility model, by setting the first anti-displacement structure 11, the sealing ring 1 can be stably fixed on the water circuit board assembly of the under-sink reverse osmosis water purifier, thereby preventing the sealing ring 1 from shifting and falling off, and avoiding water leakage of the water circuit board assembly of the under-sink reverse osmosis water purifier.

[0043] As Figure 3 shown, the embodiment of the present utility model also provides a water circuit board assembly of an under-sink reverse osmosis water purifier. The water circuit board assembly includes a water circuit board body 2, a rotating disk 3, and a filter bottle seat 4. The rotating disk 3 and the filter bottle seat 4 are sequentially installed on the water circuit board body 2. Among them, the filter bottle seat 4 is fixedly installed on the water circuit board body 2, and the rotating disk 3 can rotate between the water circuit board body 2 and the filter bottle seat 4. Continue to refer to Figure 3, the waterway board assembly further includes the sealing ring 1 of any one of the above-mentioned Embodiment 1. The sealing ring 1 is adapted to be installed on the upper surface of the waterway board body 2 so that the lower bottom surface of the rotating disk 3 and the upper surface of the waterway board body 2 are axially sealed and fitted through the sealing ring 1.

[0044] As Figure 4 shown, two filter bottle mounting positions 21 are provided on the upper surface of the waterway board body 2. The number of the filter bottle mounting positions 21 is not limited to the two shown in the figure, and can be one, three, etc. Continuing to refer to Figure 4 , in the figure, the left filter bottle mounting position 21 is provided with three first filter bottle connection ports 211 and one second filter bottle connection port 212. The second filter bottle connection port 212 is located in the middle of the filter bottle mounting position 21, and the three first filter bottle connection ports 211 are located outside the second filter bottle connection port 212; in the figure, the right filter bottle mounting position 21 is provided with two first filter bottle connection ports 211 and one second filter bottle connection port 212. The second filter bottle connection port 212 is located in the middle of the filter bottle mounting position 21, and the two first filter bottle connection ports 211 are located outside the second filter bottle connection port 212; specifically, the three first filter bottle connection ports 211 of the left filter bottle mounting position 21 in the figure are respectively the pre-filter water inlet, the pre-filter water outlet, and the post-filter water inlet, and the second filter bottle connection port 212 is the post-filter water outlet. The two first filter bottle connection ports 211 of the right filter bottle mounting position 21 in the figure are respectively the pure water treatment water inlet and the waste water outlet, and the second filter bottle connection port 212 is the pure water treatment water outlet. It should be noted that the number of the first filter bottle connection ports 211 in the filter bottle mounting position 21 is not limited to two or three shown in the figure, and can be one, four, etc. The number of the sealing rings 1 in the waterway board assembly is the same as the number of the first filter bottle connection ports 211.

[0045] As Figure 4 and Figure 5 shown, an installation groove 213 for installing the sealing ring 1 is provided on the outer periphery of the first filter bottle connection port 211. The installation groove 213 is adapted to be fitted with the sealing ring 1 in the above-mentioned Embodiment 1. As Figure 7 shown, the installation groove 213 includes an annular installation groove body 2130. The installation groove body 2130 is adapted to be fitted with the sealing ring body 10 so as to be able to axially seal the first filter bottle connection port 211; specifically, the cross-section of the installation groove body 2130 is formed or approximately formed into a rectangular cross-section or a trapezoidal cross-section.

[0046] As Figure 6 and Figure 7As shown, the installation groove 213 further includes a first anti-displacement groove 2131 recessed downward from the inner bottom surface of the installation groove body 2130. The first anti-displacement groove 2131 is adapted to be fitted with the first anti-displacement structure 11 so that the sealing ring 1 can be stably fixed in the installation groove 213. Specifically, the first anti-displacement groove 2131 is an annular structure arranged around the center line of the installation groove body 2130, that is, the center line of the first anti-displacement groove 2131 is concentric with the center line of the installation groove body 2130.

[0047] In the embodiment of the present utility model, by providing the first anti-displacement groove 2131 adapted to the first anti-displacement structure 11, the sealing ring 1 can be stably fixed in the installation groove 213, thereby preventing the sealing ring 1 from shifting and disengaging from the installation groove 213 and avoiding water leakage in the water circuit board assembly of the under-sink reverse osmosis water purifier. In addition, since the center line of the first anti-displacement groove 2131 is concentric with the center line of the installation groove body 2130, the first anti-displacement groove 2131 also has the function of adjusting the concentricity between the sealing ring body 10 and the installation groove body 2130, and can ensure that the sealing ring body 10 will not be eccentric or move in the installation groove 213 under the pressure-bearing state, achieving the purpose of improving the sealing stability.

[0048] The embodiment of the present utility model also provides an under-sink reverse osmosis water purifier, which includes the water circuit board assembly of the under-sink reverse osmosis water purifier according to any one of the above-mentioned Embodiment 1.

[0049] It can be understood that since the under-sink reverse osmosis water purifier is configured with the water circuit board assembly of the under-sink reverse osmosis water purifier in the above-mentioned Embodiment 1, it has all the technical effects of the water circuit board assembly of the under-sink reverse osmosis water purifier, which will not be elaborated here.

[0050] Embodiment 2

[0051] The embodiment of the present utility model provides a sealing ring 1 for an under-sink reverse osmosis water purifier. The sealing ring 1 includes an annular sealing ring body 10. Among them, the sealing ring body 10 in Embodiment 2 is basically the same as the sealing ring body 10 in Embodiment 1, and the difference is that:

[0052] As Figure 8 shown, a second anti-displacement structure 12 is further radially outwardly extended from a portion of the sealing ring body 10 near its outer edge. The second anti-displacement structure 12 is continuously arranged along the circumference of the sealing ring body 10, and the second anti-displacement structure 12 can also be discontinuously arranged along the circumference of the sealing ring body 10. Specifically, in this embodiment, the second anti-displacement structure 12 is an annular structure arranged around the center line of the sealing ring body 10, that is, the center line of the second anti-displacement structure 12 is concentric with the center line of the sealing ring body 10. Continue to refer to Figure 8, the cross-section of the second anti-displacement structure 12 is formed as or approximately formed as a square cross-section. In the state where the sealing ring 1 is installed on the water circuit board assembly, the second anti-displacement structure 12 is adapted to be fitted with a second anti-displacement groove 2132 formed on the water circuit board assembly of the under-counter reverse osmosis water purifier.

[0053] For the sealing ring 1 of the under-counter reverse osmosis water purifier provided by the embodiment of the present utility model, by providing the second anti-displacement structure 12, the sealing ring 1 can be stably fixed on the water circuit board assembly of the under-counter reverse osmosis water purifier, thereby preventing the sealing ring 1 from shifting out and avoiding water leakage in the water circuit board assembly of the under-counter reverse osmosis water purifier.

[0054] Continue to refer to Figure 8 , a part of the sealing ring body 10 near its inner edge also radially extends inward to form a third anti-displacement structure 13. The third anti-displacement structure 13 is continuously arranged along the circumference of the sealing ring body 10, and the third anti-displacement structure 13 can also be discontinuously arranged along the circumference of the sealing ring body 10; specifically, in this embodiment, the third anti-displacement structure 13 is an annular structure arranged around the center line of the sealing ring body 10, that is, the center line of the third anti-displacement structure 13 is concentric with the center line of the sealing ring body 10. Continue to refer to Figure 8 , the cross-section of the third anti-displacement structure 13 is formed as or approximately formed as a square cross-section. In the state where the sealing ring 1 is installed on the water circuit board assembly, the third anti-displacement structure 13 is adapted to be fitted with a third anti-displacement groove 2133 formed on the water circuit board assembly of the under-counter reverse osmosis water purifier.

[0055] For the sealing ring 1 of the under-counter reverse osmosis water purifier provided by the embodiment of the present utility model, by providing the third anti-displacement structure 13, the sealing ring 1 can be stably fixed on the water circuit board assembly of the under-counter reverse osmosis water purifier, thereby preventing the sealing ring 1 from shifting out and avoiding water leakage in the water circuit board assembly of the under-counter reverse osmosis water purifier.

[0056] The embodiment of the present utility model also provides a water circuit board assembly of an under-counter reverse osmosis water purifier. The water circuit board assembly includes a water circuit board body 2, a rotating disk 3, a filter bottle seat 4, and the sealing ring 1 of any one of the second embodiments above. Among them, the rotating disk 3 and the filter bottle seat 4 in the second embodiment have the same structure as the rotating disk 3 and the filter bottle seat 4 in the first embodiment; the water circuit board body 2 in the second embodiment is basically the same as the water circuit board body 2 in the first embodiment, and the difference is that:

[0057] Such as Figure 9 And Figure 10As shown, the portion of the mounting groove body 2130 close to its outer edge is recessed outward to form a second anti-slip groove 2132, and the second anti-slip groove 2132 is suitable for adapting to the second anti-slip structure 12 so that the sealing ring 1 can be firmly fixed in the mounting groove 213; specifically, the second anti-slip groove 2132 is an annular structure arranged around the center line of the mounting groove body 2130, that is, the center line of the second anti-slip groove 2132 is concentric with the center line of the mounting groove body 2130.

[0058] The embodiment of the utility model provides a second anti-slip groove 2132 adapted to the second anti-slip structure 12, so that the sealing ring 1 can be firmly fixed in the installation groove 213, thereby preventing the sealing ring 1 from shifting out of the installation groove 213 and avoiding water leakage in the waterway plate assembly of the under-sink reverse osmosis water purifier.

[0059] Continue to refer Figure 9 and Figure 10 The portion of the mounting groove body 2130 close to its inner edge is recessed inward to form a third anti-slip groove 2133, and the third anti-slip groove 2133 is suitable for matching with the third anti-slip structure 13 so that the sealing ring 1 can be firmly fixed in the mounting groove 213; specifically, the third anti-slip groove 2133 is an annular structure arranged around the center line of the mounting groove body 2130, that is, the center line of the third anti-slip groove 2133 is concentric with the center line of the mounting groove body 2130.

[0060] The embodiment of the utility model provides a third anti-slip groove 2133 adapted to the third anti-slip structure 13, so that the sealing ring 1 can be firmly fixed in the installation groove 213, thereby preventing the sealing ring 1 from shifting out of the installation groove 213 and avoiding water leakage in the waterway plate assembly of the under-sink reverse osmosis water purifier.

[0061] The embodiment of the utility model further provides an under-sink reverse osmosis water purifier, which includes a waterway plate assembly of the under-sink reverse osmosis water purifier of any one of the above-mentioned second embodiments.

[0062] It can be understood that, since the under-sink reverse osmosis water purifier is equipped with the waterway plate assembly of the under-sink reverse osmosis water purifier of the above-mentioned embodiment 2, it has all the technical effects of the waterway plate assembly of the under-sink reverse osmosis water purifier, which will not be repeated here.

[0063] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A sealing ring for a water purification device, characterized in that: The sealing ring includes an annular sealing ring body, and the portion of the sealing ring body close to its bottom edge line extends downward to form a first anti-slip structure. When installed, the first anti-slip structure is suitable for matching with the first anti-slip groove formed on the waterway plate assembly of the water purification equipment.

2. The sealing ring of the water purification equipment according to claim 1, characterized in that: The first anti-slip structure is disposed continuously or discontinuously along the circumference of the sealing ring body.

3. The sealing ring of the water purification equipment according to claim 2, characterized in that: The portion of the sealing ring body close to its outer edge also extends radially outward to form a second anti-slip structure, and the second anti-slip structure is suitable for matching with a second anti-slip groove formed on the waterway plate assembly of the water purification equipment.

4. The sealing ring of the water purification equipment according to claim 3, characterized in that: The second anti-slip structure is disposed continuously or discontinuously along the circumference of the sealing ring body.

5. The sealing ring of the water purification equipment according to claim 2, characterized in that: The portion of the sealing ring body close to its inner edge also extends radially inward to form a third anti-slip structure, and the third anti-slip structure is suitable for matching with a third anti-slip groove formed on the waterway plate assembly of the water purification equipment.

6. The sealing ring of the water purification equipment according to claim 5, characterized in that: The third anti-slip structure is disposed continuously or discontinuously along the circumference of the sealing ring body.

7. A waterway plate assembly for a water purification device, characterized in that: The waterway plate assembly includes a waterway plate body, the waterway plate body is provided with at least one filter bottle installation position, the filter bottle installation position is provided with at least one first filter bottle connecting port, the first filter bottle connecting port is provided with a mounting groove, and the mounting groove is suitable for adapting to the sealing ring of the water purification equipment described in any one of claims 1 to 6.

8. The waterway plate assembly of the water purification equipment according to claim 7, characterized in that: The mounting groove includes a mounting groove body adapted to match the sealing ring body, and the mounting groove also includes a first anti-slip groove formed by recessing downward from the inner bottom surface of the mounting groove body, and the first anti-slip groove is adapted to match the first anti-slip structure.

9. The waterway plate assembly of the water purification equipment according to claim 8, characterized in that: The portion of the mounting groove body close to its outer edge is recessed outward to form a second anti-slip groove; and / or The portion of the installation slot body close to the inner edge thereof is recessed inwardly to form a third anti-slip groove.

10. A water purification device, characterized in that: The water purification equipment comprises the waterway plate assembly of the water purification equipment according to any one of claims 7 to 9.

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