Housing components for water purification equipment and water purification equipment

Abstract

This invention discloses a housing assembly for a water purification device and the water purification device itself. The housing assembly includes: a middle shell, which includes a connecting base shell and a plurality of hollow support columns integrated into the bottom of the connecting base shell and extending downward in a vertical direction. The connecting base shell has clearance holes penetrating its upper and lower surfaces, communicating with the hollow support columns. An annular support plate is provided along the outer periphery of the connecting base shell; a top cover, which covers the top of the connecting base shell and conceals the clearance holes; and an outer shell, in which the middle shell and the top cover are both built into the outer shell. The outer periphery of the annular support plate abuts against the inner peripheral wall of the outer shell, and the bottom surface of the top cover abuts against the top surface of the annular support plate. According to the embodiments of the present invention, the housing assembly for the water purification device, through the engagement of the annular support plate with the inner wall of the outer shell and the top cover respectively, confines the middle shell within the outer shell, thereby improving the structural stability of the housing assembly and ensuring dryness and cleanliness within the hollow support columns.

Description

[0001] This application is based on and claims priority to Chinese patent applications with application numbers 201810744406.9, 201821078470.X, 201821082015.7, 201810744330.X, 201810744329.7, and 201821081919.8, all filed on July 9, 2018, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of household appliance technology, and more specifically, to a housing assembly for a water purification device and a water purification device. Background Technology

[0003] The fit between the top cover, middle shell, and outer shell of the water purification equipment in the relevant technology is relatively loose. During handling or transportation, the shell component structure is easily loosened by vibration, and the top cover is also easy to fall off. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the above-mentioned technical problems.

[0005] Therefore, the object of the first aspect of the present invention is to provide a housing assembly for a water purification device, wherein the upper cover, middle shell and outer shell of the housing assembly for the water purification device have a stable structural fit.

[0006] The present invention also proposes a water purification device having the above-mentioned housing assembly, which has a stable structure and a long service life.

[0007] According to a first aspect of the present invention, a housing assembly for a water purification device includes: a middle shell, the middle shell including a connecting base shell and a plurality of hollow support columns integrated into the bottom of the connecting base shell and extending downward in a vertical direction, the connecting base shell having clearance holes penetrating its upper and lower surfaces, the clearance holes communicating with the hollow support columns, and an annular support plate provided on the outer periphery of the connecting base shell; a top cover, the top cover being disposed on the top of the connecting base shell and covering the clearance holes; and an outer shell, the middle shell and the top cover being built into the outer shell, wherein the outer periphery of the annular support plate abuts against the inner peripheral wall of the outer shell, and the bottom surface of the top cover abuts against the top surface of the annular support plate.

[0008] According to an embodiment of the present invention, the housing assembly for a water purification device is fitted with an annular support plate that engages with the inner wall of the outer shell and the top cover, thereby confining the middle shell within the outer shell, which improves the structural stability of the housing assembly and ensures dryness and cleanliness within the hollow support column.

[0009] In addition, the housing assembly for a water purification device according to the above embodiments of the present invention may also have the following additional technical features:

[0010] In some embodiments of the present invention, the inner wall surface of the outer shell is provided with a first locking member, and the outer wall surface of the connecting base shell is provided with a second locking member that cooperates with the first locking member. One of the first locking member and the second locking member has a slot, and the other is a latch.

[0011] In some embodiments of the present invention, the inner wall surface of the outer shell is formed with a plurality of spaced ribs, the top of the ribs is recessed downward to form the slot, and the latch is formed on the outer periphery of the connecting base shell and extends downward to insert into the slot.

[0012] In some embodiments of the present invention, the ribs include a plurality of ribs, and the plurality of ribs are distributed on at least one of the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall.

[0013] In some embodiments of the present invention, the bottom of the upper cover is provided with an annular retaining rib extending downward in a vertical direction, the annular support plate forms a slot, and the annular retaining rib extends into the slot and fits against the inner wall surface of the annular support plate.

[0014] In some embodiments of the present invention, the thickness t1 of the top cover is between 2 and 4 mm, the width d1 of the annular retaining rib is between 1 and 3 mm, and the height h1 of the annular retaining rib is between 8 and 10 mm.

[0015] In some embodiments of the present invention, the annular support plate includes: an annular vertical plate and an annular flange connected to the top end of the annular vertical plate, the annular flange extending from the radial inner end to the radial outer end.

[0016] In some embodiments of the present invention, the annular flange extends obliquely relative to the annular vertical plate, and the angle between the annular flange and the annular vertical plate is α, where α is between 20 and 90°.

[0017] In some embodiments of the present invention, the horizontal extension distance d2 of the annular flange is between 4 and 6 mm.

[0018] In some embodiments of the present invention, the outer peripheral surface of the annular flange is provided with a flange, the flange abuts against the inner peripheral wall of the outer shell and the latch is formed on the flange.

[0019] The water purification device according to the embodiments of the present invention includes the housing assembly described above. The internal structure of the housing assembly is stable and not prone to loosening or falling off. Therefore, the water purification device according to the embodiments of the present invention has a stable structure and a long service life.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a perspective view of a water purification device according to some embodiments of the present invention;

[0023] Figure 2 This is a partial perspective view of a water purification device according to some embodiments of the present invention;

[0024] Figure 3 This is an assembly diagram of the middle shell and the base according to some embodiments of the present invention;

[0025] Figure 4 This is a perspective view of the outer casing according to some embodiments of the present invention;

[0026] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 This is a front view of a water purification device according to some embodiments of the present invention;

[0028] Figure 7 yes Figure 6 Sectional view along the BB line;

[0029] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0030] Figure 9 This is a top view of the top cover according to some embodiments of the present invention;

[0031] Figure 10 yes Figure 9 A sectional view along the DD line;

[0032] Figure 11 This is a front view of the shell according to some embodiments of the present invention;

[0033] Figure 12 yes Figure 11 Sectional view along line FF;

[0034] Figure 13 yes Figure 12 Enlarged view at point F;

[0035] Figure 14This is a perspective view of a water purification device according to other embodiments of the present invention;

[0036] Figure 15 for Figure 14 Explosion diagram of a water purification system;

[0037] Figure 16 for Figure 15 Structural diagram of the waterway conversion component;

[0038] Figure 17 for Figure 15 Structural diagram of the inner shell, water channel conversion components, and external water channel plate;

[0039] Figure 18 for Figure 17 Top view of the middle shell;

[0040] Figure 19 for Figure 17 Rear view of the middle shell;

[0041] Figure 20 for Figure 15 Schematic diagram of the middle filter element assembly;

[0042] Figure 21 for Figure 20 Enlarged view of point G in the middle;

[0043] Figure 22 for Figure 21 Cross-sectional schematic diagram of the waterway conversion component;

[0044] Figure 23 for Figure 17 Another structural schematic diagram of the inner shell, water channel conversion components, and external water channel plate;

[0045] Figure 24 for Figure 14 Schematic diagram of the water circuit of the water purification equipment;

[0046] Figure 25 This is a partial structural schematic diagram of another embodiment of the water purification equipment of the present invention;

[0047] Figure 26 for Figure 25 Schematic diagram of the middle filter element assembly;

[0048] Figure 27 for Figure 25 Structural diagram of the waterway conversion component;

[0049] Figure 28 This is an exploded view of a water purification device according to other embodiments of the present invention.

[0050] Figure label:

[0051]

[0052] Detailed Implementation

[0053] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0054] The following reference Figures 1-14 The housing assembly 100 and the water purification device 1000 are described according to embodiments of the present invention.

[0055] like Figure 1 and Figure 2 As shown, the housing assembly 100 for the water purification device 1000 generally includes: an outer shell 1, a middle shell 3, and an upper cover 6.

[0056] Specifically, the middle shell 3 includes a connecting base shell 35 and a plurality of hollow support columns 31 integrated into the bottom of the connecting base shell 35 and extending downward in the vertical direction. The connecting base shell 35 has a clearance hole 351 that penetrates its upper and lower surfaces. The clearance hole 351 communicates with the hollow support column 31. An annular support plate 352 is provided on the outer periphery of the connecting base shell 35.

[0057] like Figure 3 As shown, the connecting base shell 35 extends horizontally in the left-right direction, and the hollow support column 31 is perpendicular to the connecting base shell 35 and connected to the lower side of the connecting base shell 35. Multiple hollow support columns 31 are integrated into one unit through the connecting base shell 35. In this way, on the one hand, the structural strength of the middle shell 3 can be improved, and on the other hand, multiple hollow support columns 31 and the connecting base shell 35 can be built into the outer shell 1 as a whole, which improves the assembly efficiency of the shell assembly 100.

[0058] By providing clearance holes 351 through the upper and lower surfaces of the connecting base shell 35, the hollow support column 31 in this invention is configured to have filter element cavities with both ends open.

[0059] The number of hollow support columns 31 is not particularly limited. For example, the number of hollow support columns 31 can be two, three, or more. Specifically, such as... Figure 3 As shown, there are two hollow support columns 31 arranged side by side with intervals, one of which is connected to the left side of the connecting base shell 35, and the other is connected to the right side of the connecting base shell 35. By distributing the hollow support columns 31 at intervals on the left and right sides of the connecting base shell 35, the structural stability of the middle shell 3 can be improved.

[0060] Of course, the above embodiments are only illustrative and should not be construed as limiting the scope of protection of the present invention. For example, there may be one hollow support column 31, which is connected to the middle of the connecting base shell 35. There may also be three hollow support columns 31, which are arranged side by side with left and right intervals or in a triangular arrangement.

[0061] The top cover 6 is positioned on top of the connecting base shell 35 and covers the clearance hole 351. Both the middle shell 3 and the top cover 6 are built into the outer shell 1. The outer periphery of the annular support plate 352 abuts against the inner peripheral wall of the outer shell 1, and the bottom surface of the top cover 6 abuts against the top surface of the annular support plate 352. In other words, the annular support plate 352 rests against the inner wall of the outer shell 1, and the top cover 6 applies a downward force to the annular support plate 352, thereby confining the middle shell 3 within the outer shell 1. The top cover 6 also isolates the filter element inside the hollow support column 31 from the outside environment, preventing external moisture or dust from entering the hollow support column 31 and ensuring the cleanliness of the internal environment of the water purification equipment 1000.

[0062] Because the annular support plate 352, the upper cover 6 and the outer shell 1 cooperate with each other, the outer shell 1, the middle shell 3 and the upper cover 6 are connected to form a tightly fitted shell assembly 100, which allows them to jointly resist external impacts and prevent deformation.

[0063] Therefore, according to the embodiments of the present invention, the housing assembly 100 for the water purification equipment 1000 cooperates with the inner wall surface of the outer shell 1 and the upper cover 6 respectively through the annular support plate 352, thereby confining the middle shell 3 within the outer shell 1, improving the structural stability of the housing assembly 100, and ensuring the dryness and cleanliness inside the hollow support column 31.

[0064] In optional embodiments, such as Figures 3-8 As shown, the inner wall of the outer shell 1 is provided with a first locking member 11, and the outer wall of the connecting base shell 35 is provided with a second locking member that mates with the first locking member 11. That is, the outer shell 1 and the connecting base shell 35 are connected by the first locking member 11 and the second locking member. For example, one of the first locking member 11 and the second locking member has a slot, and the other is a latch. The latch is inserted into the slot to further engage the outer shell 1 and the middle shell 3, thereby further improving the reliability of the engagement between the outer shell 1 and the middle shell 3.

[0065] In optional embodiments, such as Figure 1 Combination Figure 2 and Figure 4As shown, the housing 1 of the housing assembly 100 for the water purification device 1000 includes a first side wall 13, a second side wall 14, a third side wall 15 and a fourth side wall 16 connected end to end. The first side wall 13 and the second side wall 14 are symmetrically arranged front and back with respect to the center of the housing 1, and the third side wall 15 and the fourth side wall 16 are symmetrically arranged left and right with respect to the center of the housing 1. The joints of the first side wall 13, the second side wall 14, the third side wall 15 and the fourth side wall 16 are smoothly connected. At least two opposite side walls of the first side wall 13, the second side wall 14, the third side wall 15 and the fourth side wall 16 are arc-shaped walls.

[0066] For example, from a top view, the outer shell 1 has an elongated oval structure, with the first sidewall 13 and the second sidewall 14 located on the front and rear sides, and the third sidewall 15 and the fourth sidewall 16 located on the left and right sides. The first sidewall 13 and the second sidewall 14 can be curved walls, or the third sidewall 15 and the fourth sidewall 16 can be curved walls, or all three can be curved walls. In other words, at least a portion of the walls of the outer shell 1 are curved surfaces, such as arc surfaces. The projection of the outer shell 1 onto the horizontal plane can be an elongated oval, for example, an ellipse.

[0067] Because the first sidewall 13, the second sidewall 14, the third sidewall 15 and the fourth sidewall 16 are connected by smooth transitions, the outer and inner walls of the outer shell 1 are relatively smooth and rounded, which can improve the structural strength of the outer shell 1.

[0068] Of course, the outer shell 1 of the present invention is not limited to the above-described elongated oval structure, and the arcuate wall of the outer shell 1 is not limited to... Figure 4 The curved wall can be convex outwards in a direction away from the center of the outer shell 1, as shown in the diagram. Alternatively, the curved wall can be convex inwards in a direction closer to the center of the outer shell 1.

[0069] Because at least two opposite sidewalls of the outer shell 1 are curved, the outer shell 1 has stronger resistance to deformation, improves its structural strength, is more resistant to external impacts, and increases the service life of the outer shell 1.

[0070] Further optional examples, such as Figure 3 Combination Figure 4 As shown, the inner wall surface of the outer shell 1 has multiple spaced ribs 12. The top of each rib 12 is recessed downwards to form a slot, and a latch is formed on the outer periphery of the connecting base shell 35 and extends downwards to insert into the slot. Thus, when assembling the outer shell 1 and the middle shell 3, the middle shell 3 can be inserted into the outer shell 1 first, allowing the latch to engage with the slot. The ribs 12 can extend along the vertical direction of the outer shell 1, or they can extend along the circumferential direction of the outer shell 1. The multiple spaced ribs 12 also strengthen the structural strength of the outer shell 1 and prevent deformation.

[0071] In a further alternative example, the ribs 12 include a plurality of ribs, and the plurality of ribs 12 are distributed on at least one of the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall. Figure 4 As shown, multiple ribs 12 can be formed on the first sidewall and / or the second sidewall and / or the third sidewall and / or the fourth sidewall. Preferably, multiple sets of ribs 12 are evenly distributed on the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall. Correspondingly, latches are also evenly distributed on the outer periphery of the connecting base shell 35. Thus, by the corresponding engagement of multiple latches with multiple slots, the middle shell 3 can be relatively stably disposed within the cavity.

[0072] In addition, the ribs 12 evenly distributed on the inner wall of the outer shell 1 can also enhance the overall strength of the outer shell 1. Preferably, the length of the ribs 12 is approximately the same as the longitudinal length of the wall of the outer shell 1.

[0073] In a further optional example, two protruding ribs 12 form a group, and one latch corresponds to one group of protruding ribs 12. That is, one latch is simultaneously embedded in two latching slots. In this way, the force of the latch can be distributed on the two protruding ribs 12, avoiding the problem of the protruding ribs 12 breaking.

[0074] Further optional examples, such as Figure 4 Combination Figure 5 As shown, the rib 12 includes a connecting section and a cylindrical section. The connecting section connects the inner wall of the outer shell 1 to the cylindrical section, serving to support the middle shell 3 and reinforce the structural strength of the outer shell 1. When the middle shell 3 is inserted into the outer shell 1, the cylindrical section acts as a guide and also abuts against the outer circumference of the middle shell 3, providing a limiting function. Therefore, the dimensions of both the cylindrical section and the connecting section have relatively specific requirements.

[0075] In optional embodiments, such as Figures 6-8 ,like Figures 9-10 The bottom of the upper cover 6 is provided with an annular retaining rib 61 extending vertically downwards. The annular support plate 352 forms a slot 353, and the annular retaining rib 61 extends into the slot 353 and fits against the inner wall surface of the annular support plate 352. In other words, the annular retaining rib 61 is engaged in the slot 353 defined by the annular support plate 352, thereby further improving the connection strength between the upper cover 6 and the connecting base shell 35. Preferably, the annular retaining rib 61 and the annular support plate 352 fit tightly together, thereby further improving the sealing between the upper cover 6 and the connecting base shell 35 and preventing dust and other contaminants from falling into the hollow support column 31.

[0076] It is understandable that the annular retaining 61 is a plastic part, thus the annular retaining 61 has a certain degree of elasticity and is easy to deform. The annular retaining 61 is interference-fitted with the insertion groove. When the upper cover 6 is installed, the lower end of the annular retaining 61 contacts the inner surface of the annular support plate 352. When the inner diameter of the annular support plate 352 is small, the annular retaining 61 deforms inward, so that the annular retaining 61 abuts against the annular support plate 352.

[0077] In one optional embodiment, the inclination angle of the annular rib is between 0.5° and 1.5°. Therefore, the smaller inclination angle of the annular rib results in a larger contact area between the outer surface of the annular rib and the inner surface of the annular support plate 352 when the annular rib deforms, increasing friction and ensuring a tighter connection. Furthermore, the upper cover 640 is easier to demold after injection molding, and its manufacturability is better. For example, the inclination angle of the annular rib may be 0.5°, 0.7°, 0.9°, 1.1°, 1.3°, or 1.5°.

[0078] In some optional examples, the thickness t1 of the top cover 6 is between 2 and 4 mm, the width d1 of the annular retaining rib 61 is between 1 and 3 mm, and the height h1 is between 8 and 10 mm. For example, the thickness t1 of the top cover 6 is 2 mm, the width d1 of the annular retaining rib 61 is 1 mm, and the height h1 is 8 mm; another example is that the thickness t1 of the top cover 6 is 4 mm, the width d1 of the annular retaining rib 61 is 3 mm, and the height h1 is 10 mm; yet another example is that the thickness t1 of the top cover 6 is 3 mm, the width d1 of the annular retaining rib 61 is 2 mm, and the height h1 is 9 mm. It is understood that the above are only illustrative, and the thickness of the top cover 6 and the width and height of the annular retaining rib 61 can be appropriately adjusted according to actual needs to meet the requirements of structural strength and product attributes.

[0079] Optional examples, such as Figure 3 Combination Figure 8 , Figure 11 As shown, the annular support plate 352 includes an annular vertical plate 3521 and an annular flange 3522 connected to the top end of the annular vertical plate 3521. The annular flange 3522 extends from the radially inner end to the radially outer end. In this invention, the "radially inner end" refers to the end near the center of the connecting base shell 35, and the "radially outer end" refers to the end away from the center of the connecting base shell 35. That is, the annular flange 3522 extends towards the outer shell 1 until it abuts against the inner wall surface of the outer shell 1. Thus, the mutual abutment between the annular flange 3522 and the outer shell 1 improves the fit strength between the middle shell 3 and the outer shell 1.

[0080] Further optional examples, such as Figure 7 and Figure 8As shown, the annular flange 3522 extends obliquely relative to the annular vertical plate 3521, and the included angle between the annular flange 3522 and the annular vertical plate 3521 is α, which is between 20° and 90°. This increases the contact area between the annular flange 3522 and the inner wall of the outer shell 1, improving the fit strength between the outer shell 1 and the middle shell 3. For example, α can be 20°, 30°, 40°, 50°, 60°, 70°, 80°, and 89°. It is understood that the above is merely illustrative and not a limitation on the embodiments of the present invention; α can be 25°, 35°, etc.

[0081] Further optional examples, such as Figure 12 Combination Figure 13 As shown, the horizontal extension distance d2 of the annular flange 3522 is between 4 and 6 mm. For example, d2 can be 4 mm, 5 mm, and 6 mm, which can ensure the structural strength of the annular flange 3522 and improve the fit strength between the middle shell 3 and the outer shell 1.

[0082] In one specific embodiment, such as Figure 3 Combination Figure 8 As shown, the outer peripheral surface of the annular flange 3522 is provided with a flange 3523. The flange 3523 abuts against the inner peripheral wall of the outer shell 1, and a latch is formed on the flange 3523. That is to say, by locally increasing the thickness of the annular flange 3522 through the flange 3523, the structural strength of the annular flange 3522 is improved, thereby enhancing the load-bearing capacity of the annular support plate 352 and avoiding problems such as breakage or deformation when the upper cover 6 is pressed against the top surface of the annular flange 3522.

[0083] In one alternative embodiment, such as Figure 3 As shown, two hollow support columns 31 are spaced apart, and a reinforcing plate 34 is provided between the two hollow support columns 31. Preferably, the two ends of the reinforcing plate 34 are respectively connected to the left and right hollow support columns 31, and the reinforcing plate 34 is located on the lower side of the hollow support columns 31. The reinforcing plate 34 includes an arc-shaped plate 341 extending in the vertical direction, a flat bottom plate 342 extending in the horizontal direction, and a vertical plate 343 extending in the vertical direction. The left and right ends of the arc-shaped plate 341 and the flat bottom plate 342 are connected to the hollow support columns 31. The lower end of the arc-shaped plate 341 is connected to the upper surface of the flat bottom plate 342, and the upper end of the vertical plate 343 is connected to the lower surface of the flat bottom plate 342. The upper end of the hollow support column 31 is connected to the connecting base shell 35, and the lower part of the hollow support column 31 is connected to the reinforcing plate. By setting the arc-shaped plate 341 and the flat bottom plate 342, the structural strength can be enhanced, making the structure of the shell 3 stable and improving the load-bearing performance of the shell 3. In addition, the vertical plate 343 includes multiple plates arranged at intervals along the left and right directions. The upper end of the vertical plate 343 is connected to the flat bottom plate 342, and the lower end of the vertical plate is connected to the base, which serves to fix the middle shell 3 and make the structure of the shell assembly 100 stable.

[0084] Preferably, at least one of the front and rear surfaces of the arc-shaped plate 341 is provided with a reinforcing rib 344 protruding from the surface of the arc-shaped plate 341, the reinforcing rib 344 extending in the vertical direction and / or in the horizontal direction. This increases the structural strength of the reinforcing plate 34, which is beneficial for further enhancing the connection stability between the hollow support columns 31.

[0085] The water purification device 1000 according to an embodiment of the present invention includes the housing assembly 100 for the water purification device 1000 described above. The internal structure of the housing assembly of the water purification device 1000 is stable and not prone to loosening or falling off. Therefore, the water purification device 1000 according to an embodiment of the present invention has a stable structure and a long service life.

[0086] The present invention also proposes a water path conversion component, a filter element assembly having the water path conversion component, and a water purification device 1000 having the filter element assembly. The filter element assembly includes two parallel filter elements, and the water path conversion component connects the filter chambers of the two filter elements. The water purification device 1000 can be a water purifier, water dispenser, or water purifier-water dispenser, and the filter element assembly is disposed within the water purification device 1000 to achieve water filtration and purification.

[0087] In this embodiment of the invention, reference is made to Figure 16 , Figure 17 as well as Figure 26 and Figure 27 The waterway conversion component 53 includes a component base plate 531, a first conversion connector group 532, and a second conversion connector group 533;

[0088] The substrate 531 has a first side edge and a second side edge that are disposed opposite to each other. A first adapter assembly 532 is disposed on the first side edge and is used to connect to a filter element. A second adapter assembly 533 is disposed on the second side edge and is used to connect to another filter element.

[0089] In this embodiment, as Figure 15As shown, the filter element assembly 5 includes a first filter element 51 and a second filter element 52. The first filter element 51 and the second filter element 52 are parallel to each other and are respectively disposed on both sides of the component substrate 531. A first conversion connector group 532 is disposed near the first filter element 51 and connected to it, and a second conversion connector group 533 is disposed near the second filter element 52 and connected to it (it is easy to understand that at least part of the first conversion connector group 532 and the second conversion connector group 533 are interconnected, for example, but not limited to, through a connecting pipe or a flow channel provided in the component substrate 531). In this way, while ensuring that the filter chambers of the first filter element 51 and the second filter element 52 are interconnected, the first filter element 51 and the second filter element 52 are both connected and fixed by the water path conversion component 53. When the user needs to replace the filter element, he / she only needs to remove the filter element from the corresponding conversion connector group. The operation is simple and quick, which greatly improves the convenience of the user to replace the filter element. In this embodiment, the first adapter group 532 and the second adapter group 533 each include a plurality of adapter tubes 532a arranged along the corresponding side edges, and the first filter element 51 and the second filter element 52 can be connected to the corresponding adapter tube 532a.

[0090] It is easy to understand that, referring to Figures 14 to 17 The water purification device 1000 includes a housing 1 and a base 2, which together form a space for accommodating the filter element assembly 5 and the water pump, etc. In particular, in this embodiment, the water purification device 1000 also includes a middle shell 3 disposed within the housing 1. The middle shell 3 includes two parallel hollow support columns 31, each of which forms a filter element mounting cavity 311. The two filter element mounting cavities 311 are provided with mounting openings (not shown) on the same side for inserting and installing the first filter element 51 and the second filter element 52, respectively. In this way, on the one hand, the filter element structure is better protected structurally to avoid being bumped by the outside world. On the other hand, since the size of the filter element mounting cavity 311 is adapted to the size of the filter element structure, the reliability of its installation can be better improved after the filter element structure is inserted. Without loss of generality, both the first filter element 51 and the second filter element 52 are cylindrical, and the filter element mounting cavity 311 is also cylindrical to accommodate the first filter element 51 and the second filter element 52. However, to save materials and reduce design costs, the hollow support column 31 forming the filter element mounting cavity 311 can also be cylindrical. Of course, in other embodiments, the first filter element 51 and the second filter element 52 can also be specifically arranged in other shapes; this design is not limited to these. In this embodiment, to reduce the operating noise of the water pump and the probability of it being bumped by external objects, a water pump mounting shell 4 for accommodating the water pump is also provided at the bottom of the middle shell 3. Without loss of generality, a reinforcing plate 34 is connected between the middle sections of the two hollow support columns 31 to improve the structural strength of the two hollow support columns 31.

[0091] In this embodiment, refer to Figures 16 to 21The water path conversion component 53 is located between the two installation openings. The extension direction of each connector pipe 532a is consistent with the extension direction of the first filter element 51 and the second filter element 52. The first filter element 51 and the second filter element 52 each include an open filter shell 511 and a filter element end cap 512 that covers the open filter shell 511. The filter element end cap 512 is provided with a filter element connector 512a that is adapted to the connector pipe 532a. Thus, during the process of inserting the filter shell 511 of the first filter element 51 and the second filter element 52 into the corresponding filter element installation cavity 311, their respective filter element connectors 512a can be inserted into the corresponding connector pipe 532a, realizing convenient installation of the filter element. Conversely, the process of convenient disassembly of the filter element can also be obtained, which will not be described in detail here. In this embodiment, the installation opening is set upward to prevent the filter element structure from sliding out of the filter element installation cavity 311 due to gravity. In addition, to facilitate the disassembly of the first filter element 51 and the second filter element 52, each of their filter element end caps 512 is provided with a filter element handle 513. One end of the filter element handle 513 is rotatably connected to the filter element end cap 512, and the other end forms a handle for the user to pull. This allows the user to easily grab the handle and pull out the filter element structure directly, improving the ease of operation. It should be noted that, in order to prevent the filter element structure from being accidentally pulled out due to user misoperation, the filter element end cap 512 may also be provided with a rotation limit structure to restrict the rotation of the filter element handle 513.

[0092] Specifically, refer to Figure 14 and Figure 15 The outer casing 1 of the water purification equipment 1000 is also uniquely designed. To allow the first filter element 51 and the second filter element 52 to be removed directly from the filter element mounting cavity 311 without obstruction, the outer casing 1 is open on one side (i.e., the opposite side of the base 2) corresponding to the two mounting openings, and is detachably fitted with a cover. When the user needs to replace the filter element, they only need to remove the cover to pull out the filter element. In addition, the sides of the outer casing 1 are designed with the outer sides of the two hollow support columns 31 in a "peanut shape" with two opposite sides being concave and the other two opposite sides being convex. This avoids wasting space inside the outer casing 1, thereby improving the space utilization rate inside the outer casing 1, and also improves the structural strength of the outer casing 1 to a certain extent. Of course, in other embodiments, if the design cost is to be reduced, the sides of the outer casing 1 can simply be made flat.

[0093] The technical solution of this invention adopts a water path conversion component 53, which includes a component base plate 531 and a first conversion connector group 532 and a second conversion connector group 533 respectively disposed at both ends of the component base plate 531. The first conversion connector group 532 and the second conversion connector group 533 are respectively connected to a filter element. In this way, while ensuring that the filter chambers of the two filter elements are interconnected, the two filter elements are connected and fixed by the water path conversion component 53. When the user needs to replace the filter element, he / she only needs to remove the filter element from the corresponding conversion connector group. The operation is simple and quick. Compared with the prior art, which requires disassembling the connecting pipe one by one, it greatly improves the convenience of the user to replace the filter element.

[0094] Furthermore, referring to Figure 16 The outer surfaces of the multiple connector tubes 532a of each of the first conversion connector group 532 and / or the second conversion connector group 533 are arranged adjacent to each other. This arrangement, on the one hand, helps to improve the overall structural strength of the conversion connector group and reduce the probability of deformation damage under external forces; on the other hand, it helps to reduce the space occupied by the conversion connector group, reduce the size requirements of the component substrate 531, save on production costs, or free up more installation space for other structures within the housing 1. It should be noted that this design is not limited to this; the multiple connector tubes 532a of each of the first conversion connector group 532 and / or the second conversion connector group 533 may also be arranged at intervals.

[0095] Reference Figures 20-22 To facilitate the connection between the connector pipe 532a and the filter element connector 512a, the inner diameter of the connector pipe 532a at the end near the filter element connector 512a is larger than the inner diameter at the end away from the filter element connector 512a. Furthermore, utilizing this larger inner diameter at the connection end, in this embodiment, a one-way flow structure is also provided at this location of part of the connector pipe 532a to effectively prevent backflow of water between the first filter element 51 and the second filter element 52. Without loss of generality, this one-way flow structure is a one-way valve core 535. It can be understood that the one-way valve core 535 is a commonly used water-stopping and flow-guiding structure in the field of water purification equipment 1000, possessing advantages such as easy availability and structural stability. It should be noted that this design is not limited to this; in other embodiments, the inner diameter of the connector pipe 532a can always be kept consistent along its extension direction.

[0096] In this embodiment, refer to Figure 16To improve the structural strength of the water channel conversion component 53, a surrounding plate 536 is provided at the periphery of the component substrate 531. The surrounding plate 536 is connected to the first conversion joint and the second conversion joint. This design, compared to a flat component substrate 531, effectively prevents shear deformation and extends its service life. Specifically, the surrounding plate 536 protrudes from both sides of the component substrate 531 (the upper and lower sides) to further enhance the structural strength of the water channel conversion component 53. Additionally, in this embodiment, several reinforcing ribs 537 are also provided on the surface of the component substrate 531. These reinforcing ribs 537 bridge the connector tubes 532a of the first conversion joint group 532 and the second conversion joint group 533, thus better preventing deformation and damage to the connector tubes 532a under stress.

[0097] As mentioned above, refer to Figures 15 to 19 The water channel conversion component 53 is disposed between the two installation openings. In this embodiment, in order to facilitate the fixed installation of the water channel conversion component 53 in the outer shell 1, the middle shell 3 also includes a connecting plate 32 spanning between the two installation openings. The water channel conversion component 53 can be detachably installed on the connecting plate 32. It should be noted that this design is not limited to this. The water channel conversion component 53 can also be suspended between the two installation openings and fixed only by connecting with the first filter element 51 and the second filter element 52 disposed in the filter element installation cavity 311. Specifically, the connecting plate 32 is provided with positioning sockets 321 corresponding to the first conversion connector group 532 and the second conversion connector group 533. The positioning sockets 321 are specifically circular openings corresponding to each connector tube 532a. The water channel conversion component 53 can be pressed against the connecting plate 32 from top to bottom, and the connector tube 532a is inserted into the circular opening from top to bottom, or the water channel conversion component 53 can be pressed against the connecting plate 32 from bottom to top, and the connector tube 532a is inserted into the circular opening from bottom to top. In this embodiment, in order to avoid the water channel conversion component 53 protruding from the upper side of the middle shell 3 and to make reasonable use of the empty space between the two hollow support columns 31, the water channel conversion component 53 is pressed against the connecting plate 32 from bottom to top, and the connector tube 532a is inserted into the circular opening from bottom to top.

[0098] It should be noted that the insertion of the connector tube 532a into the circular opening can be an insertion with a snap-fit ​​function, or it can be a positioning insertion through which the connector tube 532a passes through the circular opening. In this embodiment, the connector tube 532a into the circular opening is a positioning insertion through which only the connector tube 532a passes through the circular opening, and the water channel conversion component 53 and the connecting plate 32 are actually fixed by screws. Specifically, the enclosure plate 536 is provided with a plurality of first connecting holes 536a, and the connecting plate 32 is provided with a fixing part 322 protruding downward around its periphery. The fixing part 322 is provided with a second connecting hole 322a corresponding to the first connecting holes 536a. Screws pass through the first connecting holes 536a and the second connecting holes 322a to lock and fix the water circuit conversion component 53 to the middle shell 3, so as to achieve reliable fixation of the water circuit conversion component 53 to the middle shell 3. It can be understood that this setting is simple in design and easy to disassemble and assemble, which is conducive to reducing the overall production cost of the water purification equipment 1000 and improving the convenience for users to replace or maintain the water circuit conversion component 53. Of course, in other embodiments, the water circuit conversion component 53 can also be fixed to the connecting plate 32 by means of snap-fit ​​or other methods, and this design is not limited to this. It should be noted that, in order to avoid interference between the screw passing through the first connecting hole 536a and the connector tube 532a on the component base plate 531, the first connecting holes 536a are preferably provided on both sides of the enclosure plate 536 away from the connector tube 532a.

[0099] It is easy to understand that the water channel conversion component 53 can have its own integrated external water channel function, or can introduce external water channels into the water purification equipment 1000 through other external water channel structures.

[0100] In one embodiment of the present invention, reference is made to Figures 15 to 23 The filter element assembly 5 also includes an external water channel plate 54. The external water channel plate 54 includes a water channel plate body 541 and an external connector group 534, a first water channel connector group 542, and a second water channel connector group 543 disposed on the water channel plate body 541. The water channel plate body 541 has a flow channel that communicates with the external connector group 534, the first water channel connector group 542, and the second water channel connector group 543. The first water channel connector group 542 is connected to the end of the first conversion connector group 532 away from the first filter element 51, and the second water channel connector group 543 is connected to the end of the second conversion connector group 533 away from the second filter element 52. The external connector group 534 is used to connect to an external water channel.

[0101] It is easy to understand that the external water circuit plate 54 with internally formed flow channels is a widely used water circuit structure in the prior art. Its application in this embodiment helps reduce the production cost of the water circuit conversion component 53. It should be understood that the first water circuit connector group 542 and the first conversion connector group 532 can be directly connected or connected through a connecting pipe 55, as can the second water circuit connector group 543 and the second conversion connector. Furthermore, it should be noted that both ends of the connector pipe 532a are disposed through both sides of the component substrate 531. One end is used to connect to the corresponding filter element, and the other end is used to connect to the external water circuit plate 54 through the connecting pipe 55. Thus, the first conversion connector group 532 and the second conversion connector group 533 achieve water circuit interconnection through the external water circuit plate 54. It is understood that the water pump is connected to the internal water circuit of the external water circuit plate 54, providing power for water circulation.

[0102] Reference Figure 21 and Figure 24 The following describes the specific configuration of the first filter element 51, the second filter element 52, the external connector assembly 534, the first conversion connector assembly 532, and the second conversion connector assembly 533 in this embodiment:

[0103] The first filter element 51 includes a pre-filter element 514 and a post-filter element 515 disposed within the filter housing 511. The second filter element 52 includes a membrane filter element 521 disposed within the filter housing 511. The external connector assembly 534 includes a tap water inlet connector 534a, a drinking water outlet connector 534b, a wastewater outlet connector 534c, and a domestic water outlet connector 534d arranged in sequence. The first conversion connector assembly 532 includes a domestic water conversion connector 532b, a pure water inlet connector 532c, a drinking water conversion connector 532d, and a tap water conversion connector 532e. The second conversion connector assembly 533 includes a water pump inlet connector 533a, a pure water outlet connector 533b, and a wastewater conversion connector 533c.

[0104] Based on the above composition of filter cartridges and connector assemblies, the specific water flow direction within the 1000 water purification equipment is described below:

[0105] Tap water to be filtered enters the water purification equipment 1000 through the tap water inlet connector 534a, and then enters the filter chamber of the pre-filter cartridge 514 through the tap water conversion connector 532e (the flow process of water in the flow channel, the first water connection group 542, and the second water connection group 543 is omitted). After pre-filtration, the water returns to the external water circuit board 54 through the domestic water conversion connector 532b. Part of it is discharged from the water purification equipment 1000 through the domestic water outlet connector 534d, and the other part is pressurized by the water pump and enters the membrane filter cartridge 52 through the water pump inlet connector 533a. In the filter chamber of filter 1, after filtration by membrane filter element 521, the generated wastewater returns to the external water circuit board 54 through wastewater conversion connector 533c and is discharged through wastewater outlet connector 534c. The generated pure water returns to the external water circuit board 54 through pure water outlet connector 533b, and then enters the filter chamber of post-filter element 515 through pure water inlet connector 532c. After filtration by post-filter element 515, the final drinking water returns to the external water circuit board 54 through drinking water conversion connector 532d and is discharged from the water purification equipment 1000 through drinking water outlet for user consumption. It should be noted that the pre-filter element 514 is arranged around the post-filter element 515. The water flow direction in the filter chambers of the first filter element 51 and the second filter element 52 is both vertical, consistent with the extension direction of connector pipe 532a. Of course, in other embodiments, the water flow direction in the filter chambers of the first filter element 51 and the second filter element 52 may also form a preset angle with the extension direction of connector pipe 532a. Additionally, it should be noted that in other embodiments, the specific configurations of the first filter element 51 and the second filter element 52 can be interchanged, and the specific configurations of the first conversion connector group 532 and the second conversion connector group 533 can be adjusted accordingly.

[0106] In this embodiment, refer to Figure 17 and Figure 23The external water circuit board 54 is detachably installed at the bottom of the hollow support column 31 corresponding to the first filter element 51. The water circuit board body 541 is placed horizontally and at least part of the water circuit conversion component 53 is set facing upwards. The first water circuit connector group 542 and the second water circuit connector group 543 are provided. In order to facilitate the connection between the first water circuit connector group 542 and the first conversion connector group 532, and the second water circuit connector group 543 and the second conversion connector group 533, the first water circuit connector group 542 and the second water circuit connector group 543 also extend in the vertical direction. Furthermore, the external connector group 534 forms a preset angle with the first water connector group 542 and the second water connector group 543, and is disposed through the side of the water circuit plate body 541 away from the second filter element 52. For example, but not limited to, the external connector group 534 is perpendicular to the first water connector group 542 and the second water connector group 543, and each of its external ends protrudes from the outer side of the hollow support column 31 corresponding to the first filter element 51. Water interfaces are provided on the outer shell 1 corresponding to each external end. In this way, the lateral water inlet and outlet of the water purification equipment 1000 can be realized. It should be noted that this design is not limited to this. In other embodiments, in order to meet different customer needs or to cope with different installation environments of the water purification equipment 1000, the external water circuit plate 54 can also be specifically disposed in other positions inside the outer shell 1 so that the external connector group 534 can be adjusted to a position that facilitates the external pipeline.

[0107] In another embodiment of the present invention, reference is made to Figures 25 to 27 The water channel conversion component 53 also includes an external connector group 534, which is disposed on the surface of the component substrate 531 and is used to connect to an external water channel. It can be understood that integrating a conventional external water channel plate 54 onto the water channel conversion component 53 simultaneously realizes the functions of connecting the water channel conversion component 53 to an external water channel and connecting the two filter cartridges. This simplifies the internal structure of the water purification equipment 1000 and improves the efficiency of user disassembly and maintenance of the water purification equipment 1000. It is easily understood that the external connector group 534 can be connected to the first conversion connector group 532 and the second conversion connector group 533 via a connecting pipe 55, or they can be interconnected through an internal water channel formed within the component substrate 531. In this embodiment, to avoid setting too many connecting pipes 55 and affecting the neatness of the arrangement of various structures within the outer casing 1, the component substrate 531 has an internal water channel, and the external connector group 534, the first conversion connector group 532, and the second conversion connector group 533 are all connected to the internal water channel. Furthermore, the component substrate 531 is also provided with a pressure switch connector 538 for connecting to a pressure switch, and a solenoid valve connector 539 for connecting to a solenoid valve.

[0108] In this embodiment, refer to Figure 27The first conversion connector group 532 and the second conversion connector group 533 are both located on the upper side of the component base plate 531 to facilitate the insertion of the filter element structure into the filter element mounting cavity 311. During this process, the filter element connector 512a is connected to the connector tube 532a of the first conversion connector group 532 and the second conversion connector group 533. Similarly, in order to facilitate the connection of the external connector group 534 with the external water channel, the external connector group 534 is also located on the upper side of the component base plate 531. Naturally, the positioning socket 321 on the connecting plate 32 also includes a circular opening for positioning and inserting the external connector group 534. Moreover, in order to better ensure the impact resistance of the external connector group 534, the middle shell 3 also includes a protective plate 33 connected to the outer edge of the mounting opening of the two hollow support columns 31. The protective plate 33 is located on the side of the external connector group 534 away from the component base plate 531, and the protective plate 33 is provided with a clearance opening 331 for each connector tube 532a of the external structure group. In addition, to avoid interference between the installation of pressure switches, solenoid valves and other structures and the filter element and external water pipes, it is preferable to place the pressure switch connector 538 and the solenoid valve connector 539 on the lower side of the component base plate 531.

[0109] It should also be noted that the specific configurations of the first filter element 51 and the second filter element 52 in this embodiment are consistent with those in the first embodiment of the present invention. The specific configuration of the connector pipe 532a on the external connector group is consistent with that of the external water circuit board 54 in the first embodiment of the present invention. The specific configurations of the first conversion connector group 532 and the second conversion connector group 533 are also consistent with those in the first embodiment of the present invention. Therefore, the corresponding water flow direction within the water purification device 1000 is also basically consistent with that in the first embodiment of the present invention. The difference is that, in this embodiment, since the connector pipes 532a of the external connector group 534 are all located on the upper side of the component base plate 531 and extend upward, the water purification device 1000 adopts a top-inlet water method. It can be understood that with this configuration, after the end cap covers the upper opening of the outer shell 1, the entire exterior of the outer shell 1 is flat, effectively improving the appearance integrity of the outer shell 1.

[0110] In one specific embodiment of the present invention, reference is made to... Figures 14-28 The water channel conversion component 53 includes a component base plate 531, a first conversion connector group 532, and a second conversion connector group 533. The surface of the component base plate 531 has a first side edge and a second side edge that are disposed opposite to each other. The first conversion connector group 532 is disposed on the first side edge and is used to connect with a filter element. The second conversion connector group 533 is disposed on the second side edge and is used to connect with another filter element.

[0111] Optionally, the first adapter group 532 and the second adapter group 533 each include a plurality of adapter tubes 532a arranged along the corresponding side edges; the adapter tubes 532a are disposed through the surface of the component substrate 531, and the adapter tubes 532a have a first end and a second end disposed opposite to each other, the first end being used to connect to the corresponding filter element.

[0112] Optionally, the outer surfaces of the plurality of connector tubes 532a of each of the first adapter group 532 and / or the second adapter group 533 are arranged adjacent to each other.

[0113] Optionally, the first end and the second end are respectively provided protruding from both sides of the plate surface of the component substrate 531, and the inner diameter of the first end is larger than the inner diameter of the second end.

[0114] Optionally, at least one of the tube holes at the first end is provided with a unidirectional conduction structure.

[0115] Optionally, a surrounding plate 536 is provided at the periphery of the component substrate 531, and the surrounding plate 536 is connected to the first conversion connector and the second conversion connector.

[0116] Optionally, the enclosure 536 is provided with a plurality of first connecting holes, which are used to connect and fix with an external structure.

[0117] Optionally, the component substrate 531 is further provided with a plurality of reinforcing ribs 537 protruding from its surface, the reinforcing ribs 537 being connected between the first conversion connector group 532 and the second conversion connector group 533.

[0118] Optionally, the water channel conversion component 53 further includes an external connector group 534, which is disposed on the surface of the component substrate 531 and is used to connect to an external water channel.

[0119] Optionally, the first adapter group 532, the second adapter group 533, and the external connector group 534 are disposed on the same side of the component substrate 531, and the external connector group 534 is located between the first adapter and the second adapter.

[0120] Optionally, the component substrate 531 has an internal water channel, and the external connector group 534, the first conversion connector group 532 and the second conversion connector group 533 are all connected to the internal water channel.

[0121] Optionally, the water circuit conversion component 53 further includes a pressure switch connector 538 disposed on the surface of the component substrate 531, the pressure switch connector 538 being connected to the internal water circuit; and / or the water circuit conversion component 53 further includes a solenoid valve connector 539 disposed on the surface of the component substrate 531, the solenoid valve connector 539 being connected to the internal water circuit.

[0122] The present invention also includes the filter element assembly 5 of the above embodiments, including a first filter element 51, a second filter element 52, and a water channel conversion component 53. The water channel conversion component 53 includes: a component substrate 531, a first conversion connector group 532, and a second conversion connector group 533. The surface of the component substrate 531 has a first side edge and a second side edge disposed opposite to each other. The first conversion connector group 532 is disposed on the first side edge and connected to the first filter element 51. The second conversion connector group 533 is disposed on the second side edge and connected to the second filter element 52.

[0123] The present invention also proposes a filter element assembly and a water purification device 1000 having the filter element assembly. The water purification device 1000 can be a water purifier, a water dispenser, or a water purifier, and the filter element assembly is disposed within the water purification device 1000 to achieve water filtration and purification.

[0124] In one embodiment of the present invention, reference is made to... Figure 15 and Figure 28 The filter element assembly 5 includes a first filter element 51, a second filter element 52, and a water path conversion component 53; the water path conversion component 53 includes a component base plate 531, a first conversion connector group 532, and a second conversion connector group 533, the first conversion connector group 532 and the second conversion connector group 533 are disposed at opposite ends of the component base plate 531; the first filter element 51 is connected to the first conversion connector group 532, and the second filter element 52 is connected to the second conversion connector group 533.

[0125] In this embodiment, the first filter element 51 and the second filter element 52 are arranged parallel to each other and on both sides of the component substrate 531. The first conversion connector group 532 is located near and connected to the first filter element 51, and the second conversion connector group 533 is located near and connected to the second filter element 52 (it is easy to understand that at least part of the first conversion connector group 532 and the second conversion connector group 533 are interconnected, for example, but not limited to, through a connecting pipe or a flow channel provided in the component substrate 531). In this way, while ensuring that the filter chambers of the first filter element 51 and the second filter element 52 are interconnected, the first filter element 51 and the second filter element 52 are both connected and fixed by the water path conversion component 53. When the user needs to replace the filter element, he / she only needs to remove the filter element from the corresponding conversion connector group. The operation is simple and quick, greatly improving the convenience of the user to replace the filter element. In this embodiment, the first conversion connector group 532 and the second conversion connector group 533 each include multiple connector pipes 532a, and the first filter element 51 and the second filter element 52 can be connected to the corresponding connector pipe 532a.

[0126] It is easy to understand that, referring to Figures 14 to 18 The water purification device 1000 includes a housing 1 and a base 2, which together form a space for accommodating the filter element assembly 5 and the water pump, etc. In particular, in this embodiment, the water purification device 1000 also includes a middle shell 3 disposed within the housing 1. The middle shell 3 includes two parallel hollow support columns 31, each of which forms a filter element mounting cavity 311. The two filter element mounting cavities 311 are provided with mounting openings (not shown) on the same side for inserting and installing the first filter element 51 and the second filter element 52, respectively. In this way, on the one hand, the filter element structure is better protected structurally to avoid being bumped by the outside world. On the other hand, since the size of the filter element mounting cavity 311 is adapted to the size of the filter element structure, the reliability of its installation can be better improved after the filter element structure is inserted. Without loss of generality, both the first filter element 51 and the second filter element 52 are cylindrical, and the filter element mounting cavity 311 is also cylindrical to accommodate the first filter element 51 and the second filter element 52. However, to save materials and reduce design costs, the hollow support column 31 forming the filter element mounting cavity 311 can also be cylindrical. Of course, in other embodiments, the first filter element 51 and the second filter element 52 can also be specifically arranged in other shapes; this design is not limited to these. In this embodiment, to reduce the operating noise of the water pump and the probability of it being bumped by external objects, a water pump mounting shell 4 for accommodating the water pump is also provided at the bottom of the middle shell 3. Without loss of generality, a reinforcing plate 34 is connected between the middle sections of the two hollow support columns 31 to improve the structural strength of the two hollow support columns 31.

[0127] In this embodiment, refer to Figure 14 , Figure 25 and Figure 28The water path conversion component 53 is located between the two installation openings. The extension direction of each connector pipe 532a is consistent with the extension direction of the first filter element 51 and the second filter element 52. The first filter element 51 and the second filter element 52 each include an open filter shell 511 and a filter element end cap 512 that covers the open filter shell 511. The filter element end cap 512 is provided with a filter element connector 512a that is adapted to the connector pipe 532a. Thus, during the process of inserting the filter shell 511 of the first filter element 51 and the second filter element 52 into the corresponding filter element installation cavity 311, their respective filter element connectors 512a can be inserted into the corresponding connector pipe 532a, realizing convenient installation of the filter element. Conversely, the process of convenient disassembly of the filter element can also be obtained, which will not be described in detail here. In this embodiment, the installation opening is set upward to prevent the filter element structure from sliding out of the filter element installation cavity 311 due to gravity. In addition, to facilitate the disassembly of the first filter element 51 and the second filter element 52, each of their filter element end caps 512 is provided with a filter element handle 513. One end of the filter element handle 513 is rotatably connected to the filter element end cap 512, and the other end forms a handle for the user to pull. This allows the user to easily grab the handle and pull out the filter element structure directly, improving the ease of operation. It should be noted that, in order to prevent the filter element structure from being accidentally pulled out due to user misoperation, the filter element end cap 512 may also be provided with a rotation limit structure to restrict the rotation of the filter element handle 513.

[0128] Specifically, refer to Figure 14 and Figure 15 The outer casing 1 of the water purification equipment 1000 is also uniquely designed. To allow the first filter element 51 and the second filter element 52 to be removed directly from the filter element mounting cavity 311 without obstruction, the outer casing 1 is open on one side (i.e., the opposite side of the base 2) corresponding to the two mounting openings, and is detachably fitted with a cover. When the user needs to replace the filter element, they only need to remove the cover to pull out the filter element. In addition, the sides of the outer casing 1 are designed with the outer sides of the two hollow support columns 31 in a "peanut shape" with two opposite sides being concave and the other two opposite sides being convex. This avoids wasting space inside the outer casing 1, thereby improving the space utilization rate inside the outer casing 1, and also improves the structural strength of the outer casing 1 to a certain extent. Of course, in other embodiments, if the design cost is to be reduced, the sides of the outer casing 1 can simply be made flat.

[0129] The technical solution of this invention adopts a water path conversion component 53, which includes a component base plate 531 and a first conversion connector group 532 and a second conversion connector group 533 respectively disposed at both ends of the component base plate 531. The first conversion connector group 532 and the second conversion connector group 533 are respectively connected to a filter element. In this way, while ensuring that the filter chambers of the two filter elements are interconnected, the two filter elements are connected and fixed by the water path conversion component 53. When the user needs to replace the filter element, he / she only needs to remove the filter element from the corresponding conversion connector group. The operation is simple and quick. Compared with the prior art, which requires disassembling the connecting pipe 55 one by one, it greatly improves the convenience of the user to replace the filter element.

[0130] Furthermore, referring to Figure 17 The outer surfaces of the multiple connector tubes 532a of each of the first conversion connector group 532 and / or the second conversion connector group 533 are arranged adjacent to each other. This arrangement, on the one hand, helps to improve the overall structural strength of the conversion connector group and reduce the probability of deformation damage under external forces; on the other hand, it helps to reduce the space occupied by the conversion connector group, reduce the size requirements of the component substrate 531, save on production costs, or free up more installation space for other structures within the housing 1. It should be noted that this design is not limited to this; the multiple connector tubes 532a of each of the first conversion connector group 532 and / or the second conversion connector group 533 may also be arranged at intervals.

[0131] Reference Figure 20 and Figure 28 To facilitate the connection between the connector pipe 532a and the filter element connector 512a, the inner diameter of the connector pipe 532a at the end near the filter element connector 512a is larger than the inner diameter at the end away from the filter element connector 512a. Furthermore, utilizing this larger inner diameter at the connection end, in this embodiment, a one-way flow structure is also provided at this location of part of the connector pipe 532a to effectively prevent backflow of water between the first filter element 51 and the second filter element 52. Without loss of generality, this one-way flow structure is a one-way valve core 535. It can be understood that the one-way valve core 535 is a commonly used water-stopping and flow-guiding structure in the field of water purification equipment 1000, possessing advantages such as easy availability and structural stability. It should be noted that this design is not limited to this; in other embodiments, the inner diameter of the connector pipe 532a can always be kept consistent along its extension direction.

[0132] In this embodiment, refer to Figure 23To improve the structural strength of the water channel conversion component 53, a surrounding plate 536 is provided at the periphery of the component substrate 531. The surrounding plate 536 is connected to the first conversion joint and the second conversion joint. This design, compared to a flat component substrate 531, effectively prevents shear deformation and extends its service life. Specifically, the surrounding plate 536 protrudes from both sides of the component substrate 531 (the upper and lower sides) to further enhance the structural strength of the water channel conversion component 53. Additionally, in this embodiment, several reinforcing ribs 537 are also provided on the surface of the component substrate 531. These reinforcing ribs 537 bridge the connector tubes 532a of the first conversion joint group 532 and the second conversion joint group 533, thus better preventing deformation and damage to the connector tubes 532a under stress.

[0133] As mentioned above, refer to Figure 14 , Figure 25 and Figure 28 The water channel conversion component 53 is disposed between the two installation openings. In this embodiment, in order to facilitate the fixed installation of the water channel conversion component 53 in the outer shell 1, the middle shell 3 also includes a connecting plate 32 spanning between the two installation openings. The water channel conversion component 53 can be detachably installed on the connecting plate 32. It should be noted that this design is not limited to this. The water channel conversion component 53 can also be suspended between the two installation openings and fixed only by connecting with the first filter element 51 and the second filter element 52 disposed in the filter element installation cavity 311. Specifically, the connecting plate 32 is provided with positioning sockets 321 corresponding to the first conversion connector group 532 and the second conversion connector group 533. The positioning sockets 321 are specifically circular openings corresponding to each connector tube 532a. The water channel conversion component 53 can be pressed against the connecting plate 32 from top to bottom, and the connector tube 532a is inserted into the circular opening from top to bottom, or the water channel conversion component 53 can be pressed against the connecting plate 32 from bottom to top, and the connector tube 532a is inserted into the circular opening from bottom to top. In this embodiment, in order to avoid the water channel conversion component 53 protruding from the upper side of the middle shell 3 and to make reasonable use of the empty space between the two hollow support columns 31, the water channel conversion component 53 is pressed against the connecting plate 32 from bottom to top, and the connector tube 532a is inserted into the circular opening from bottom to top.

[0134] It should be noted that the insertion of the connector tube 532a into the circular opening can be an insertion with a snap-fit ​​function, or it can be a positioning insertion through which the connector tube 532a passes through the circular opening. In this embodiment, the connector tube 532a into the circular opening is a positioning insertion through which only the connector tube 532a passes through the circular opening, and the water channel conversion component 53 and the connecting plate 32 are actually fixed by screws. Specifically, the enclosure plate 536 is provided with a plurality of first connecting holes 536a, and the connecting plate 32 is provided with a fixing part 322 protruding downward around its periphery. The fixing part 322 is provided with a second connecting hole 322a corresponding to the first connecting holes 536a. Screws pass through the first connecting holes 536a and the second connecting holes 322a to lock and fix the water circuit conversion component 53 to the middle shell 3, so as to achieve reliable fixation of the water circuit conversion component 53 to the middle shell 3. It can be understood that this setting is simple in design and easy to disassemble and assemble, which is conducive to reducing the overall production cost of the water purification equipment 1000 and improving the convenience for users to replace or maintain the water circuit conversion component 53. Of course, in other embodiments, the water circuit conversion component 53 can also be fixed to the connecting plate 32 by means of snap-fit ​​or other methods, and this design is not limited to this. It should be noted that, in order to avoid interference between the screw passing through the first connecting hole 536a and the connector tube 532a on the component base plate 531, the first connecting holes 536a are preferably provided on both sides of the enclosure plate 536 away from the connector tube 532a.

[0135] It is easy to understand that the water channel conversion component 53 can have its own integrated external water channel function, or can introduce external water channels into the water purification equipment 1000 through other external water channel structures.

[0136] In yet another embodiment of the invention, reference is made to... Figures 15 to 24 The filter element assembly 5 also includes an external water channel plate 54. The external water channel plate 54 includes a water channel plate body 541 and an external connector group 534, a first water channel connector group 542, and a second water channel connector group 543 disposed on the water channel plate body 541. The water channel plate body 541 has a flow channel that communicates with the external connector group 534, the first water channel connector group 542, and the second water channel connector group 543. The first water channel connector group 542 is connected to the end of the first conversion connector group 532 away from the first filter element 51, and the second water channel connector group 543 is connected to the end of the second conversion connector group 533 away from the second filter element 52. The external connector group 534 is used to connect to an external water channel.

[0137] It is easy to understand that the external water circuit plate 54 with internally formed flow channels is a widely used water circuit structure in the prior art. Its application in this embodiment helps reduce the production cost of the water circuit conversion component 53. It should be understood that the first water circuit connector group 542 and the first conversion connector group 532 can be directly connected or connected through a connecting pipe 55, as can the second water circuit connector group 543 and the second conversion connector. Furthermore, it should be noted that both ends of the connector pipe 532a are disposed through both sides of the component substrate 531. One end is used to connect to the corresponding filter element, and the other end is used to connect to the external water circuit plate 54 through the connecting pipe 55. Thus, the first conversion connector group 532 and the second conversion connector group 533 achieve water circuit interconnection through the external water circuit plate 54. It is understood that the water pump is connected to the internal water circuit of the external water circuit plate 54, providing power for water circulation.

[0138] Reference Figure 21 and Figure 24 The following describes the specific configuration of the first filter element 51, the second filter element 52, the external connector assembly 534, the first conversion connector assembly 532, and the second conversion connector assembly 533 in this embodiment:

[0139] The first filter element 51 includes a pre-filter element 514 and a post-filter element 515 disposed within the filter housing 511. The second filter element 52 includes a membrane filter element 521 disposed within the filter housing 511. The external connector assembly 534 includes a tap water inlet connector 534a, a drinking water outlet connector 534b, a wastewater outlet connector 534c, and a domestic water outlet connector 534d arranged in sequence. The first conversion connector assembly 532 includes a domestic water conversion connector 532b, a pure water inlet connector 532c, a drinking water conversion connector 532d, and a tap water conversion connector 532e. The second conversion connector assembly 533 includes a water pump inlet connector 533a, a pure water outlet connector 533b, and a wastewater conversion connector 533c.

[0140] Based on the above composition of filter cartridges and connector assemblies, the specific water flow direction within the 1000 water purification equipment is described below:

[0141] Tap water to be filtered enters the water purification equipment 1000 through the tap water inlet connector 534a, and then enters the filter chamber of the pre-filter cartridge 514 through the tap water conversion connector 532e (the flow process of water in the flow channel, the first water connection group 542, and the second water connection group 543 is omitted). After pre-filtration, the water returns to the external water circuit board 54 through the domestic water conversion connector 532b. Part of it is discharged from the water purification equipment 1000 through the domestic water outlet connector 534d, and the other part is pressurized by the water pump and enters the membrane filter cartridge 52 through the water pump inlet connector 533a. In the filter chamber of filter 1, after filtration by membrane filter element 521, the generated wastewater returns to the external water circuit board 54 through wastewater conversion connector 533c and is discharged through wastewater outlet connector 534c. The generated pure water returns to the external water circuit board 54 through pure water outlet connector 533b, and then enters the filter chamber of post-filter element 515 through pure water inlet connector 532c. After filtration by post-filter element 515, the final drinking water returns to the external water circuit board 54 through drinking water conversion connector 532d and is discharged from the water purification equipment 1000 through drinking water outlet for user consumption. It should be noted that the pre-filter element 514 is arranged around the post-filter element 515. The water flow direction in the filter chambers of the first filter element 51 and the second filter element 52 is both vertical, consistent with the extension direction of connector pipe 532a. Of course, in other embodiments, the water flow direction in the filter chambers of the first filter element 51 and the second filter element 52 may also form a preset angle with the extension direction of connector pipe 532a. Additionally, it should be noted that in other embodiments, the specific configurations of the first filter element 51 and the second filter element 52 can be interchanged, and the specific configurations of the first conversion connector group 532 and the second conversion connector group 533 can be adjusted accordingly.

[0142] In this embodiment, refer to Figure 17 and Figure 23The external water circuit board 54 is detachably installed at the bottom of the hollow support column 31 corresponding to the first filter element 51. The water circuit board body 541 is placed horizontally and at least part of the water circuit conversion component 53 is set facing upwards. The first water circuit connector group 542 and the second water circuit connector group 543 are provided. In order to facilitate the connection between the first water circuit connector group 542 and the first conversion connector group 532, and the second water circuit connector group 543 and the second conversion connector group 533, the first water circuit connector group 542 and the second water circuit connector group 543 also extend in the vertical direction. Furthermore, the external connector group 534 forms a preset angle with the first water connector group 542 and the second water connector group 543, and is disposed through the side of the water circuit plate body 541 away from the second filter element 52. For example, but not limited to, the external connector group 534 is perpendicular to the first water connector group 542 and the second water connector group 543, and each of its external ends protrudes from the outer side of the hollow support column 31 corresponding to the first filter element 51. Water interfaces are provided on the outer shell 1 corresponding to each external end. In this way, the lateral water inlet and outlet of the water purification equipment 1000 can be realized. It should be noted that this design is not limited to this. In other embodiments, in order to meet different customer needs or to cope with different installation environments of the water purification equipment 1000, the external water circuit plate 54 can also be specifically disposed in other positions inside the outer shell 1 so that the external connector group 534 can be adjusted to a position that facilitates the external pipeline.

[0143] In yet another embodiment of the invention, reference is made to... Figures 25 to 28 The water channel conversion component 53 also includes an external connector group 534, which is disposed on the surface of the component substrate 531 and is used to connect to an external water channel. It can be understood that integrating a conventional external water channel plate 54 onto the water channel conversion component 53 simultaneously realizes the functions of connecting the water channel conversion component 53 to an external water channel and connecting the two filter cartridges. This simplifies the internal structure of the water purification equipment 1000 and improves the efficiency of user disassembly and maintenance of the water purification equipment 1000. It is easily understood that the external connector group 534 can be connected to the first conversion connector group 532 and the second conversion connector group 533 via a connecting pipe 55, or they can be interconnected through an internal water channel formed within the component substrate 531. In this embodiment, to avoid setting too many connecting pipes 55 and affecting the neatness of the arrangement of various structures within the outer casing 1, the component substrate 531 has an internal water channel, and the external connector group 534, the first conversion connector group 532, and the second conversion connector group 533 are all connected to the internal water channel. Furthermore, the component substrate 531 is also provided with a pressure switch connector 538 for connecting to a pressure switch, and a solenoid valve connector 539 for connecting to a solenoid valve.

[0144] In this embodiment, refer to Figure 27The first conversion connector group 532 and the second conversion connector group 533 are both located on the upper side of the component base plate 531 to facilitate the insertion of the filter element structure into the filter element mounting cavity 311. During this process, the filter element connector 512a is connected to the connector tube 532a of the first conversion connector group 532 and the second conversion connector group 533. Similarly, in order to facilitate the connection of the external connector group 534 with the external water channel, the external connector group 534 is also located on the upper side of the component base plate 531. Naturally, the positioning socket 321 on the connecting plate 32 also includes a circular opening for positioning and inserting the external connector group 534. Moreover, in order to better ensure the impact resistance of the external connector group 534, the middle shell 3 also includes a protective plate 33 connected to the outer edge of the mounting opening of the two hollow support columns 31. The protective plate 33 is located on the side of the external connector group 534 away from the component base plate 531, and the protective plate 33 is provided with a clearance opening 331 for each connector tube 532a of the external structure group. In addition, to avoid interference between the installation of pressure switches, solenoid valves and other structures and the filter element and external water pipes, it is preferable to place the pressure switch connector 538 and the solenoid valve connector 539 on the lower side of the component base plate 531.

[0145] It should also be noted that the specific configurations of the first filter element 51 and the second filter element 52 in this embodiment are consistent with those in the first embodiment of the present invention. The specific configuration of the connector pipe 532a on the external connector group is consistent with that of the external water circuit board 54 in the first embodiment of the present invention. The specific configurations of the first conversion connector group 532 and the second conversion connector group 533 are also consistent with those in the first embodiment of the present invention. Therefore, the corresponding water flow direction within the water purification device 1000 is also basically consistent with that in the first embodiment of the present invention. The difference is that, in this embodiment, since the connector pipes 532a of the external connector group 534 are all located on the upper side of the component base plate 531 and extend upward, the water purification device 1000 adopts a top-inlet water method. It can be understood that with this configuration, after the end cap covers the upper opening of the outer shell 1, the entire exterior of the outer shell 1 is flat, effectively improving the appearance integrity of the outer shell 1.

[0146] In one specific embodiment of the present invention, reference is made to... Figures 14-28 The filter element assembly 5 includes a first filter element 51, a second filter element 52, and a water path conversion component 53; the water path conversion component 53 includes a component base plate 531, a first conversion connector group 532, and a second conversion connector group 533, the first conversion connector group 532 and the second conversion connector group 533 are disposed at opposite ends of the component base plate 531; the first filter element 51 is connected to the first conversion connector group 532, and the second filter element 52 is connected to the second conversion connector group 533.

[0147] Optionally, the first adapter group 532 and the second adapter group 533 each include a plurality of adapter tubes 532a;

[0148] The connector tube 532a is disposed through the surface of the component substrate 531, and the connector tube 532a has a first end and a second end disposed opposite to each other, the first end being connected to the corresponding filter element.

[0149] Optionally, the first filter element 51 and the second filter element 52 each include a filter housing 511 and a filter element end cap 512 installed on the filter housing 511, and a filter cavity is formed inside the filter housing 511.

[0150] The filter element end cap 512 is provided with a filter element connector 512a adapted to the first end on the side facing the component substrate 531.

[0151] Optionally, at least one of the holes at the first end is provided with a unidirectional conduction structure.

[0152] Optionally, the extension direction of the connector tube 532a is consistent with the extension direction of the filter housing 511.

[0153] Optionally, the filter element assembly 5 further includes an external water channel plate 54, which includes a water channel plate body 541 and an external connector group 534, a first water channel connector group 542, and a second water channel connector group 543 disposed on the water channel plate body 541. The water channel plate body 541 has a flow channel that communicates with the external connector group 534, the first water channel connector group 542, and the second water channel connector group 543.

[0154] The first water connector group 542 is connected to the end of the first conversion connector group 532 away from the first filter element 51, the second water connector group 543 is connected to the end of the second conversion connector group 533 away from the second filter element 52, and the external connector group 534 is used to connect to an external water system.

[0155] Optionally, the external water circuit board 54 is located on the side away from the water circuit conversion member 53 in the extending direction of the first filter element 51 and the second filter element 52;

[0156] The surface of the external water circuit board 54 is at least partially facing the water circuit conversion component 53, and is provided with a first water circuit connector group 542 and a second water circuit connector group 543; the external connector group 534 forms a preset angle with the first water circuit connector group 542 and the second water circuit connector group 543, and is provided through the side of the external water circuit board 54.

[0157] The present invention also includes a water purification device 1000, comprising a middle shell 3 and a filter element assembly 5. The filter element assembly 5 includes a first filter element 51, a second filter element 52, and a water path conversion component 53. The water path conversion component 53 includes a component base plate 531, a first conversion connector group 532, and a second conversion connector group 533. The first conversion connector group 532 and the second conversion connector group 533 are disposed at opposite ends of the component base plate 531. The first filter element 51 is connected to the first conversion connector group 532, and the second filter element 52 is connected to the second conversion connector group 533. The middle shell 3 has two parallel filter element mounting cavities 311, and mounting openings are respectively provided on the same side of the two filter element mounting cavities 311 for the insertion and installation of the first filter element 51 and the second filter element 52. The water path conversion component 53 is disposed between the two filter element mounting cavities 311 and is located near the two mounting openings.

[0158] Optionally, the middle shell 3 also has a connecting plate 32 spanning between the two mounting openings, and the water channel conversion component 53 is detachably mounted on the connecting plate 32.

[0159] Optionally, a surrounding plate 536 protrudes from at least one edge of the component substrate 531, and a fixing part 322 protrudes from one side of the connecting plate 32 corresponding to the surrounding plate 536.

[0160] The enclosure 536 is provided with a first connecting hole, and the fixing part 322 is provided with a second connecting hole 322a corresponding to the first connecting hole.

[0161] Optionally, the connecting plate 32 is provided with a positioning socket 321 adapted to the first conversion connector group 532 and the second conversion connector group 533.

[0162] The present invention also proposes a filter element assembly and a water purification device 1000 having the filter element assembly. The water purification device 1000 can be a water purifier, a water dispenser, or a water purifier, and the filter element assembly is disposed within the water purification device 1000 to achieve water filtration and purification.

[0163] In one embodiment of the present invention, reference is made to... Figures 25 to 28 The filter assembly 5 includes a first filter element 51, a second filter element 52, and a water path conversion component 53;

[0164] like Figure 27 As shown, the water channel conversion component 53 includes a component base plate 531, a first conversion connector group 532, a second conversion connector group 533, and an external connector group 534. The first conversion connector group 532, the second conversion connector group 533, and the external connector group 534 are all disposed on the surface of the component base plate 531. The first conversion connector group 532 and the second conversion connector group 533 are respectively located at opposite ends of the component base plate 531.

[0165] The first filter element 51 is connected to the first conversion connector group 532, the second filter element 52 is connected to the second conversion connector group 533, and the external connector group 534 is used to connect to the external water circuit.

[0166] In this embodiment, refer to Figure 28 As shown, the first filter element 51 and the second filter element 52 are arranged parallel to each other and on both sides of the component substrate 531. The first conversion connector group 532 is located near the first filter element 51 and connected to it, and the second conversion connector group 533 is located near the second filter element 52 and connected to it. In this way, the first filter element 51 and the second filter element 52 are connected and fixed by the water path conversion component 53. When the user needs to replace the filter element, he / she only needs to remove the filter element from the corresponding conversion connector group. The operation is simple and quick, which greatly improves the convenience of the user to replace the filter element. It is easy to understand that the external connector group 534 can be connected to the first conversion connector group 532 and the second conversion connector group 533 through a connecting pipe, or it can be interconnected through the internal water path formed in the component substrate 531. In this way, the external water path is connected to the first filter element 51 and the second filter element 52 to realize the filtration water path in the water purification equipment 1000. It is understandable that integrating a conventional external water circuit board onto the water circuit conversion component 53 simultaneously enables the water circuit conversion component 53 to connect to external water circuits and connect the two filter elements. This simplifies the internal structure of the water purification equipment 1000. In this embodiment, the first conversion connector group 532, the second conversion connector group 533, and the external connector group 534 each include multiple connector pipes 532a. The first filter element 51, the second filter element 52, and the external water circuit can all be connected to the corresponding connector pipe 532a. Preferably, the multiple connector pipes 532a of each connector group are arranged in the same direction to reduce their space occupation on the upper surface of the component substrate 531.

[0167] It is easy to understand that, referring to Figure 28The water purification device 1000 includes a housing 1 and a base 2, which together form a space for accommodating the filter element assembly 5 and the water pump, etc. In particular, in this embodiment, the water purification device 1000 also includes a middle shell 3 disposed within the housing 1. The middle shell 3 includes two parallel hollow support columns 31, each of which forms a filter element mounting cavity 311. The two filter element mounting cavities 311 are provided with mounting openings on the same side for inserting and installing the first filter element 51 and the second filter element 52, respectively. In this way, on the one hand, the filter element structure is better protected structurally to avoid being bumped by the outside world. On the other hand, since the size of the filter element mounting cavity 311 is adapted to the size of the filter element structure, the reliability of its installation can be improved after the filter element structure is inserted. Without loss of generality, both the first filter element 51 and the second filter element 52 are cylindrical, and the filter element mounting cavity 311 is also cylindrical to accommodate the first filter element 51 and the second filter element 52. However, to save materials and reduce design costs, the hollow support column 31 forming the filter element mounting cavity 311 can also be cylindrical. Of course, in other embodiments, the first filter element 51 and the second filter element 52 can also be specifically arranged in other shapes, and this design is not limited to this. In this embodiment, in order to reduce the operating noise of the water pump and the probability of it being bumped by external objects, the bottom of the middle shell 3 is also surrounded by a water pump mounting shell 4 for accommodating the water pump.

[0168] In this embodiment, refer to Figure Figure 25 and Figure 28The water path conversion component 53 is located between the two installation openings. The extension direction of the connector tube 532a of the first conversion connector group 532 and the second conversion connector group 533 is consistent with the extension direction of the first filter element 51 and the second filter element 52. The first filter element 51 and the second filter element 52 each include an open filter shell 511 and a filter element end cap 512 that covers the open filter shell 511. The filter element end cap 512 is provided with a filter element connector that is adapted to the connector tube 532a. Thus, during the process of inserting the filter shell 511 of the first filter element 51 and the second filter element 52 into the corresponding filter element installation cavity 311, their respective filter element connectors can be inserted into the corresponding connector tube 532a, realizing convenient installation of the filter element. Conversely, the convenient disassembly process of the filter element can also be obtained, which will not be described in detail here. In this embodiment, the installation opening is set upward to prevent the filter element structure from sliding out of the filter element installation cavity 311 due to gravity. In addition, to facilitate the disassembly of the first filter element 51 and the second filter element 52, each of their filter element end caps 512 is provided with a filter element handle 513. One end of the filter element handle 513 is rotatably connected to the filter element end cap 512, and the other end forms a handle for the user to pull. This allows the user to easily grab the handle and pull out the filter element structure directly, improving the ease of operation. It should be noted that, in order to prevent the filter element structure from being accidentally pulled out due to user misoperation, the filter element end cap 512 may also be provided with a rotation limit structure to restrict the rotation of the filter element handle 513.

[0169] Specifically, refer to Figure 28 The outer casing 1 of the water purification equipment 1000 is also uniquely designed. To allow the first filter element 51 and the second filter element 52 to be removed directly from the filter element mounting cavity 311 without obstruction, the outer casing 1 is open on one side (i.e., the opposite side of the base 2) corresponding to the two mounting openings, and is detachably fitted with a cover. When the user needs to replace the filter element, they only need to remove the cover to pull out the filter element. In addition, the sides of the outer casing 1 are designed with the outer sides of the two hollow support columns 31 in a "peanut shape" with two opposite sides being concave and the other two opposite sides being convex. This avoids wasting space inside the outer casing 1, thereby improving the space utilization rate inside the outer casing 1, and also improves the structural strength of the outer casing 1 to a certain extent. Of course, in other embodiments, if the design cost is to be reduced, the sides of the outer casing 1 can simply be made flat.

[0170] The technical solution of this invention introduces a water channel conversion component 53, which includes a component base plate 531 and a first conversion connector group 532 and a second conversion connector group 533 respectively disposed at both ends of the component base plate 531. The first conversion connector group 532 and the second conversion connector group 533 are respectively connected to a filter element. In this way, while ensuring the intercommunication of the filter chambers between the two filter elements, both filter elements are connected and fixed by the water channel conversion component 53. When the user needs to replace the filter element, he / she only needs to transfer the filter element from the corresponding conversion component. The water circuit conversion component 53 can be easily removed from the connector assembly, making the operation simple and quick. In particular, the water circuit conversion component 53 also includes an external connector assembly 534 disposed on the component base plate 531. The external connector assembly 534 is used to connect to an external water circuit. Thus, the water circuit conversion component 53 also integrates the function of connecting to an external water circuit, eliminating the need for an external water circuit board in the water purification equipment 1000. By simply setting up the water circuit conversion component 53, the water circulation within the entire water purification equipment 1000 can be realized, effectively simplifying the structure of the water purification equipment 1000.

[0171] In this embodiment, to avoid having too many connecting pipes and affecting the neatness of the arrangement of the various structures inside the outer casing 1, the component substrate 531 has an internal water channel, and the external connector group 534, the first conversion connector group 532, and the second conversion connector group 533 are all connected to the internal water channel. Furthermore, as... Figure 27 As shown, the component substrate 531 is also provided with a pressure switch connector 538 for connecting to a pressure switch and a solenoid valve connector 539 for connecting to a solenoid valve. In order to avoid interference between the installation of the pressure switch, solenoid valve and other structures and the filter element and external water pipe, it is preferable to place the pressure switch connector 538 and the solenoid valve connector 539 on the lower side of the component substrate 531.

[0172] Reference Figure 27 Combination Figure 28 The following describes the specific configuration of the first filter element 51, the second filter element 52, the external connector assembly 534, the first conversion connector assembly 532, and the second conversion connector assembly 533 in this embodiment:

[0173] The first filter element 51 includes a pre-filter element and a post-filter element disposed within the filter housing 511. The second filter element 52 includes a membrane filter element disposed within the filter housing 511. The external connector group 534 includes a tap water inlet connector 534a, a drinking water outlet connector 534b, a wastewater outlet connector 534c, and a domestic water outlet connector 534d arranged in sequence. The first conversion connector group 532 includes a domestic water conversion connector 532b, a pure water inlet connector 532c, a drinking water conversion connector 532d, and a tap water conversion connector 532e. The second conversion connector group 533 includes a water pump inlet connector 533a, a pure water outlet connector 533b, and a wastewater conversion connector 533c.

[0174] Based on the above composition of filter cartridges and connector assemblies, the specific water flow direction within the 1000 water purification equipment is described below:

[0175] Tap water to be filtered enters the water purification equipment 1000 through the tap water inlet connector 534a, and then enters the filter chamber of the pre-filter cartridge through the tap water conversion connector 532e (the flow process of water in the internal water circuit is omitted). After pre-filtration, the water returns to the water circuit conversion component 53 through the domestic water conversion connector 532b. Part of it is discharged from the water purification equipment 1000 through the domestic water outlet connector 534d, and the other part is pressurized by the water pump and enters the filter chamber of the membrane filter cartridge through the water pump inlet connector. After passing through the membrane filter cartridge... After filtration, the wastewater returns to the water circuit conversion component 53 through the wastewater conversion connector 533c and is discharged through the wastewater outlet connector 534c. The pure water returns to the water circuit conversion component 53 through the pure water outlet connector 533b, and then enters the filter chamber of the post-filter cartridge through the pure water inlet connector 532c. After filtration by the post-filter cartridge, the final drinking water returns to the water circuit conversion component 53 through the drinking water conversion connector 532d and is discharged from the water purification equipment 1000 through the drinking water outlet for users to drink. It should be noted that the pre-filter cartridge is arranged around the post-filter cartridge, and the water flow direction in the filter chambers of the first filter cartridge 51 and the second filter cartridge 52 is vertical, consistent with the extension direction of the connector pipe 532a. Of course, in other embodiments, the water flow direction in the filter chambers of the first filter cartridge 51 and the second filter cartridge 52 may also form a preset angle with the extension direction of the connector pipe 532a. Additionally, it should be noted that in other embodiments, the specific configurations of the first filter element 51 and the second filter element 52 can be interchanged, and the specific configurations of the first conversion connector group 532 and the second conversion connector group 533 can be adjusted accordingly.

[0176] In this embodiment, refer to Figure 27 The first conversion connector group 532 and the second conversion connector group 533 are both located on the upper side of the component base plate 531 to facilitate the connection between the filter element connector and the connector pipe 532a of the first conversion connector group 532 and the second conversion connector group 533 during the process of inserting the filter element structure into the filter element mounting cavity 311. Similarly, to facilitate the connection of the external connector group 534 with the external water circuit, the external connector group 534 is also located on the upper side of the component base plate 531 and extends upward, and is located between the first conversion connector group 532 and the second conversion connector group 533. In this way, the water inlet of the water purification equipment 1000 is realized. It should be noted that this design is not limited to this. In other embodiments, in order to meet different customer needs or to cope with different installation environments of the water purification equipment 1000, the external connector group 534 may also extend in other directions.

[0177] The first filter element 51 includes a pre-filter element and a post-filter element disposed within the filter housing 511. The second filter element 52 includes a membrane filter element disposed within the filter housing 511. The external connector group 534 includes a tap water inlet connector 534a, a drinking water outlet connector 534b, a wastewater outlet connector 534c, and a domestic water outlet connector 534d arranged in sequence. The first conversion connector group 532 includes a domestic water conversion connector 532b, a pure water inlet connector 532c, a drinking water conversion connector 532d, and a tap water conversion connector 532e. The second conversion connector group 533 includes a water pump inlet connector 533a, a pure water outlet connector 533b, and a wastewater conversion connector 533c.

[0178] Based on the above composition of filter cartridges and connector assemblies, the specific water flow direction within the 1000 water purification equipment is described below:

[0179] As mentioned above, refer to Figure 28 The water channel conversion component 53 is disposed between the two installation openings. In this embodiment, in order to facilitate the fixed installation of the water channel conversion component 53 in the outer shell 1, the middle shell 3 also includes a connecting plate 32 spanning between the two installation openings. The water channel conversion component 53 can be detachably installed on the connecting plate 32. It should be noted that this design is not limited to this. The water channel conversion component 53 can also be suspended between the two installation openings and fixed only by connecting with the first filter element 51 and the second filter element 52 disposed in the filter element installation cavity 311. Specifically, the connecting plate 32 is provided with positioning sockets 321 corresponding to the external connector group 534, the first conversion connector group 532, and the second conversion connector group 533. The positioning sockets 321 are specifically circular openings corresponding to each connector tube 532a. The water channel conversion component 53 can be pressed against the connecting plate 32 from top to bottom, and the connector tube 532a is inserted into the circular opening from top to bottom, or the water channel conversion component 53 can be pressed against the connecting plate 32 from bottom to top, and the connector tube 532a is inserted into the circular opening from bottom to top. In this embodiment, in order to avoid the water channel conversion component 53 protruding from the upper side of the middle shell 3 and to make reasonable use of the empty space between the two hollow support columns 31, the water channel conversion component 53 is pressed against the connecting plate 32 from bottom to top, and the connector tube 532a is inserted into the circular opening from bottom to top. Furthermore, in order to better ensure the impact resistance of the external connector assembly 534, the middle shell 3 also includes a protective plate 33 connected to the outer edge of the mounting opening of the two hollow support columns 31. The protective plate 33 is located on the side of the external connector assembly 534 away from the component base plate 531, and the protective plate 33 is provided with a clearance opening 331 for each connector tube 532a of the external structure assembly.

[0180] In one specific embodiment of the present invention, reference is made to... Figures 14-28The filter element assembly 5 includes a first filter element 51, a second filter element 52, and a water path conversion component 53; the water path conversion component 53 includes a component base plate 531, a first conversion connector group 532, a second conversion connector group 533, and an external connector group 534. The first conversion connector group 532, the second conversion connector group 533, and the external connector group 534 are all disposed on the surface of the component base plate 531, and the first conversion connector group 532 and the second conversion connector group 533 are respectively located at opposite ends of the component base plate 531.

[0181] The first filter element 51 is connected to the first conversion connector group 532, the second filter element 52 is connected to the second conversion connector group 533, and the external connector group 534 is used to connect to an external water channel.

[0182] Optionally, the first adapter group 532, the second adapter group 533, and the external connector group 534 are disposed on the same side of the component substrate 531, and the external connector group 534 is located between the first adapter group 532 and the second adapter group 533.

[0183] Optionally, the first adapter group 532, the second adapter group 533, and the external connector group 534 each include a plurality of connector tubes 532a;

[0184] The arrangement direction of each connector tube 532a in the first conversion connector group 532 is consistent with the arrangement direction of each connector tube 532a in the second conversion connector group 533 and the external connector group 534.

[0185] Optionally, the first filter element 51 and the second filter element 52 each have a filter element connector 512a that is adapted to the connector tube 532a of the first conversion connector group 532 and the second conversion connector group 533.

[0186] Optionally, the component substrate 531 has an internal water channel, and the first conversion connector group 532, the second conversion connector group 533, and the external connector group 534 are all connected to the internal water channel.

[0187] Optionally, the water channel conversion component 53 further includes a pressure switch connector 538 disposed on the surface of the component substrate 531, the pressure switch connector 538 being in communication with the internal water channel; and / or

[0188] The water circuit conversion component 53 also includes an electromagnetic valve connector 539 disposed on the surface of the component substrate 531, and the electromagnetic valve connector 539 is connected to the internal water circuit.

[0189] The present invention also includes a water purification device 1000 according to the above embodiments, comprising a middle shell 3 and a filter element assembly 5. The filter element assembly 5 includes a first filter element 51, a second filter element 52, and a water path conversion component 53. The water path conversion component 53 includes a component base plate 531, a first conversion connector group 532, a second conversion connector group 533, and an external connector group 534. The first conversion connector group 532, the second conversion connector group 533, and the external connector group 534 are all disposed on the surface of the component base plate 531. The first conversion connector group 532 and the second conversion connector group 533 are respectively located on... At opposite ends of the component substrate 531; the first filter element 51 is connected to the first conversion connector group 532, the second filter element 52 is connected to the second conversion connector group 533, and the external connector group 534 is used to connect to an external water channel; the middle shell 3 has two parallel filter element mounting cavities 311, and mounting openings are respectively provided on the same side of the two filter element mounting cavities 311 for the first filter element 51 and the second filter element 52 to be inserted and installed; the water channel conversion component 53 is located between the two filter element mounting cavities 311 and is located near the two mounting openings.

[0190] Optionally, the middle shell 3 further includes a connecting plate 32 spanning between the two mounting openings, and the water channel conversion component 53 is detachably mounted on the connecting plate 32.

[0191] Optionally, the connecting plate 32 is provided with a positioning socket 321 that adapts to the first conversion connector group 532, the second conversion connector group 533 and the external connector group 534.

[0192] Optionally, the middle shell 3 further includes a protective plate 33 located on the side of the external connector group 534 away from the component substrate 531, and the protective plate 33 is provided with a clearance opening 331 corresponding to the external connector group 534.

[0193] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A housing assembly for a water purification device, characterized in that, include: The middle shell includes a connecting base shell and a plurality of hollow support columns integrated into the bottom of the connecting base shell and extending downward in a vertical direction. The connecting base shell has clearance holes that penetrate its upper and lower surfaces and communicate with the hollow support columns. The outer periphery of the connecting base shell is provided with an annular support plate. The top cover is disposed on the top of the connecting base shell and covers the clearance hole; The outer shell, the middle shell and the upper cover are both built into the outer shell, wherein the outer periphery of the annular support plate abuts against the inner peripheral wall of the outer shell, and the bottom surface of the upper cover abuts against the top surface of the annular support plate; The inner wall of the outer shell is provided with a first locking component, and the outer wall of the connecting base shell is provided with a second locking component that cooperates with the first locking component. The first locking component and the second locking component have a slot and a tongue respectively. The inner wall surface of the outer shell has multiple spaced ribs, the top of the ribs is recessed downward to form the slot, and the latch is formed on the outer periphery of the connecting base shell and extends downward to insert into the slot; The rib includes a connecting section and a cylindrical section, wherein the connecting section is connected between the inner wall surface of the outer shell and the cylindrical section; The annular support plate includes: an annular vertical plate and an annular flange connected to the top of the annular vertical plate, the annular flange extending from the radial inner end to the radial outer end; The outer peripheral surface of the annular flange is provided with a flange, the flange abuts against the inner peripheral wall of the outer shell, and the latch is formed on the flange.

2. The housing assembly for a water purification device according to claim 1, characterized in that, The outer shell includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall connected end to end. The ribs include a plurality of ribs, which are distributed on at least one of the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall.

3. The housing assembly for a water purification device according to claim 1, characterized in that, The bottom of the top cover is provided with an annular retaining rib extending downward in a vertical direction, and the annular support plate forms a slot, with the annular retaining rib extending into the slot and fitting against the inner wall surface of the annular support plate.

4. The housing assembly for a water purification device according to claim 3, characterized in that, The thickness t1 of the top cover is between 2 and 4 mm, the width d1 of the annular retaining rib is between 1 and 3 mm, and the height h1 of the annular retaining rib is between 8 and 10 mm.

5. The housing assembly for a water purification device according to claim 1, characterized in that, The annular flange extends obliquely relative to the annular vertical plate, and the angle between the annular flange and the annular vertical plate is α, which is between 20° and 90°.

6. The housing assembly for a water purification device according to claim 1, characterized in that, The horizontal extension distance d2 of the annular flange is between 4 and 6 mm.

7. A water purification device, characterized in that, include: The housing assembly for a water purification device according to any one of claims 1-6.

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