Modular water purification devices and water purification kits

Abstract

This application relates to a modular water purification device and a water purification kit, comprising a filter bottle and multiple filter cartridges. The filter bottle has a raw water inlet and a purified water outlet. Multiple filter cartridges are stacked within the filter bottle, and each filter cartridge is detachable and installable. Each filter cartridge has a filter inlet and a filter outlet, and the relative positions of the filter inlet and outlet on each filter cartridge are consistent. The filter outlet of the upstream filter cartridge in a pair of adjacent filter cartridges is aligned and connected to the filter inlet of the downstream filter cartridge. The filter inlet of the upstreammost filter cartridge in the stacked units is connected to the raw water inlet, and the filter outlet of the downstreammost filter cartridge in the stacked units is connected to the purified water outlet. This design not only allows for personalized design of the types and quantities of filter cartridges within the filter bottle but also facilitates easy assembly and disassembly, thus improving the overall user experience.

Description

Technical Field

[0001] This application relates to the field of water purification equipment technology, and in particular to modular water purification devices and water purification kits. Background Technology

[0002] As people's living standards improve, water purification devices are becoming increasingly popular. The filter cartridge, as a key component of these devices, experiences a decline in filtration capacity after a period of use. Replacing or cleaning the filter cartridge can restore its filtration capacity to some extent. In practical applications, users have different requirements for the filtration capacity of water purification devices depending on water quality or intended use. Therefore, water purification devices with adjustable filtration capacity have emerged. However, changing the filtration capacity in general water purification devices is relatively complex and inconvenient. Summary of the Invention

[0003] Therefore, it is necessary to provide a modular water purification device to address the problem of inconvenient operation. This device not only allows for personalized design of the types and quantities of individual filter cartridges in the filter bottle, but also facilitates easy assembly and disassembly, thus improving the overall user experience.

[0004] A modular water purification device, comprising:

[0005] Filter bottle, the filter bottle having a raw water inlet and a purified water outlet;

[0006] Multiple filter cartridges are stacked in a filter bottle, and each filter cartridge is detachable and installable in the filter bottle. Each filter cartridge has a filter cartridge inlet and a filter cartridge outlet, and the relative positions of the filter cartridge inlet and outlet on each filter cartridge are consistent. The filter cartridge outlet of the upstream filter cartridge in two adjacent filter cartridges is aligned and connected to the filter cartridge inlet of the downstream filter cartridge. The filter cartridge inlet of the upstream filter cartridge in the stacked multiple filter cartridges is connected to the raw water inlet, and the filter cartridge outlet of the downstream filter cartridge in the stacked multiple filter cartridges is connected to the purified water outlet.

[0007] In one embodiment, the stacking direction of the plurality of filter cartridges in the filter bottle is a first direction, each of the filter cartridges corresponds to a virtual projection surface, and the virtual projection surface is perpendicular to the first direction. The filter cartridge inlet and filter cartridge outlet of the filter cartridge are arranged in a staggered manner on this virtual projection surface.

[0008] In one embodiment, each filter element unit includes a unit shell and a filter element core located within the unit shell. The space enclosed by the unit shell is a cylindrical space, and the filter element inlet and the filter element outlet are respectively formed on the two end faces of the unit shell.

[0009] In one embodiment, the filter inlet and the filter outlet, belonging to the same filter element unit, are located on opposite sides of the axis of the unit's outer shell.

[0010] In one embodiment, the filter element core is a cylindrical structure with openings at both ends. The outer diameter of the filter element core is smaller than the inner diameter of the single-unit shell. The axis of the filter element core is parallel to and spaced apart from the axis of the single-unit shell. The two end faces of the filter element core are respectively abutted against the two end faces of the single-unit shell. The filter element inlet corresponds to the hollow space of the filter element core. The filter element outlet is offset to one side of the filter element core.

[0011] In one embodiment, the outer diameter of the filter element core is no greater than half the inner diameter of the single-unit shell, and the filter element outlet and the filter element core are located on opposite sides of the axis of the single-unit shell.

[0012] In one embodiment, the filter bottle includes a bottle body and a bottle cap, the plurality of filter cartridges are stacked sequentially along the height direction of the bottle body, the bottle cap is disposed at the opening of the bottle body, the raw water inlet and / or the purified water outlet are formed on the bottle cap, and a water supply pipe is provided at the raw water inlet and / or the purified water outlet.

[0013] In one embodiment, the water supply pipe passes through the bottle cap, the length of the water supply pipe inserted into the bottle body is adjustable, the water supply pipe can press against the filter element closest to the bottle cap along the direction of filter element stacking, and a first water passage hole is provided on the pipe wall inserted into the filter bottle.

[0014] In one embodiment, the water supply pipe is threadedly engaged with the bottle cap, and the length of the water supply pipe inserted into the bottle body can be adjusted by screwing it relative to the bottle cap.

[0015] In one embodiment, the filter bottle is provided with a separator to divide the space in the filter bottle into two accommodating spaces, and multiple filter element units can be stacked in each accommodating space. The separator is provided with a second water passage hole.

[0016] The filter inlet of the upstream filter element unit located in the aforementioned accommodating space is connected to the raw water inlet, and the filter outlet of the downstream filter element unit is connected to the second water passage hole.

[0017] The filter inlet of the upstream filter element in the other accommodating space is connected to the second water passage, and the filter outlet of the downstream filter element is connected to the purified water outlet.

[0018] In one embodiment, the outer peripheral surface of each filter element unit is sealed against the sidewall of the corresponding accommodating space.

[0019] In one embodiment, the filter element unit has a groove at the part for forming the filter element inlet, the filter element inlet is formed on the bottom wall of the groove, and a raw water space is provided in the filter element unit at the position corresponding to the groove, with the sidewall of the groove and the sidewall of the raw water space arranged at intervals.

[0020] In one embodiment, the individual filter cartridges have the same shape.

[0021] A water purification kit includes the aforementioned modular water purification device and a filter cartridge removal tool. The filter cartridge removal tool includes a tube and a filament. The filament is movably inserted into the tube, and one end of the filament can extend out of the tube. This end of the filament branches into two tail hooks, the two tail hooks bend in opposite directions, and the branching angle between the two tail hooks is variable.

[0022] The above solution provides a stacking water purification device and set. Users can select the required number and type of filter cartridges to stack in the filter bottle, thus ensuring that the filtration capacity of the filter cartridges in the final filter bottle meets user needs. Furthermore, the relative positions of the filter cartridge inlet and outlet are consistent on each filter cartridge. Multiple filter cartridges are stacked in the filter bottle, allowing for quick alignment and connection between the inlets and outlets of adjacent filter cartridges. Whether increasing or decreasing the number of filter cartridges, they can be quickly stacked together, making operation convenient. This not only allows for personalized design of the type and number of filter cartridges in the filter bottle but also facilitates easy assembly and disassembly, thus improving the overall user experience. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of the modular water purification device described in this embodiment.

[0024] Figure 2 This is a cross-sectional view of the modular water purification device described in another embodiment.

[0025] Figure 3 This is a front view of the filter element unit in cross-section as described in this embodiment.

[0026] Figure 4 This is a right view of the filter element unit described in this embodiment in another cross-sectional view.

[0027] Figure 5 This is a top view of the filter element unit described in this embodiment in another cross-sectional view.

[0028] Figure 6A schematic diagram showing the structure when the filter element removal tool is inserted into the filter element unit.

[0029] Figure 7 This is a schematic diagram of the filter element removal tool described in this embodiment when the two tail hooks are in the retracted state.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Modular water purification device; 11. Filter bottle; 111. Bottle body; 112. Bottle cap; 1121. Raw water inlet; 1122. Purified water outlet; 12. Water supply pipe; 121. First water passage hole; 13. Separator; 131. Accommodation space; 132. Second water passage hole; 14. Wastewater proportional valve; 20. Filter element unit; 21. Filter element inlet; 22. Filter element outlet; 23. Unit shell; 231. Groove; 24. Filter element core; 241. First filter element unit; 242. Second filter element unit; 243. Third filter element unit; 244. Fourth filter element unit; 245. Raw water space; 30. Filter element disassembly tool; 31. Pipe body; 32. Fine wire; 321. Tail hook. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] like Figure 1 and Figure 2 As shown, in some embodiments of this application, a modular water purification device 10 is provided, including a filter bottle 11 and multiple filter cartridges 20. The filter bottle 11 has a raw water inlet 1121 and a purified water outlet 1122. Raw water to be filtered enters the filter bottle 11 through the raw water inlet 1121, and the purified water obtained after filtration flows out of the filter bottle 11 through the purified water outlet 1122.

[0034] Multiple filter cartridges 20 are stacked in a filter bottle 11, and each filter cartridge 20 can be disassembled and installed in the filter bottle 11. Each filter cartridge 20 has a filter cartridge inlet 21 and a filter cartridge outlet 22. The filter cartridge outlet 22 of the upstream filter cartridge 20 of two adjacent filter cartridges 20 is aligned and connected to the filter cartridge inlet 21 of the downstream filter cartridge 20. The filter cartridge inlet 21 of the upstream filter cartridge 20 of the stacked filter cartridges 20 is connected to the raw water inlet 1121, and the filter cartridge outlet 22 of the downstream filter cartridge 20 of the stacked filter cartridges 20 is connected to the purified water outlet 1122.

[0035] Raw water enters the filter bottle 11 through the raw water inlet 1121 and passes through each filter element 20 in sequence. Finally, the purified water flows out from the filter outlet 22 of the downstream filter element 20 and is discharged from the purified water outlet 1122 to the outside of the filter bottle 11.

[0036] Since each filter element 20 can be detachably installed in the filter bottle 11, users can select the required quantity and type of filter element 20 to stack in the filter bottle 11, thereby ensuring that the filtration capacity of the filter element 20 in the final filter bottle 11 meets the user's needs. Moreover, the user's participation is enhanced during the process of selecting the number of filter element 20 and installing the filter element 20.

[0037] In some embodiments, the relative positions of the filter inlet 21 and the filter outlet 22 on each filter element 20 are consistent. Multiple filter elements 20 are arranged in a stacked manner in the filter bottle 11. The filter outlet 22 and filter inlet 21 between adjacent filter elements 20 can be quickly aligned and connected. Whether increasing or decreasing the number of filter elements 20, they can be quickly stacked together, making operation convenient. This not only allows for personalized design of the types and quantities of filter elements 20 in the filter bottle 11, but also facilitates easy assembly and disassembly, thus improving the overall user experience.

[0038] It should be noted that the consistent relative positions of the filter inlet 21 and filter outlet 22 on each filter element 20 refer to the consistent relative spacing between these two features on each filter element 20 itself. However, after the filter element 20 is installed into the filter bottle 11, the relative positions of the filter inlet 21 and filter outlet 22 on different filter element 20s may differ due to factors such as installation position, installation angle, and viewing angle. For example, in... Figure 1 and Figure 2 From the perspective shown, the offset direction of the filter inlet 21 relative to the filter outlet 22 on different filter cartridges 20 is different. However, after removing the filter cartridge 20, adjusting the observation angle of the filter cartridge 20 will show that the relative positions between the filter inlet 21 and the filter outlet 22 on each filter cartridge 20 are consistent.

[0039] Furthermore, such as Figure 1 and Figure 2 As shown, in some embodiments, the shapes of each filter element unit 20 are consistent, so no matter which filter element unit 20 is added or removed, the multiple filter element units 20 in the filter bottle 11 can be stacked in the same way, making the installation method simple.

[0040] In some embodiments, such as Figures 3 to 5As shown, the filter cartridge 20 includes a cartridge housing 23 and a filter cartridge core 24 located inside the cartridge housing 23. The filter cartridge inlet 21 and the filter cartridge outlet 22 are both formed on the cartridge housing 23. The raw water entering the cartridge housing 23 from the filter cartridge inlet 21 needs to be filtered by the filter cartridge core 24 before it can flow out from the filter cartridge outlet 22.

[0041] Specifically, in some embodiments, the outer shell 23 of each filter element 20 has the same shape, so that no matter how the number of filter element 20 is increased or decreased, the filter element 20 in the filter bottle 11 can be stacked in the same way.

[0042] The individual filter cartridges 20 stacked together are pressed together, so that the water flows accurately from the filter cartridge outlet 22 and filter cartridge inlet 21 that are aligned and connected between adjacent filter cartridges 20, without overflowing outside the filter cartridge 20.

[0043] like Figures 1 to 5 As shown, in some embodiments, the stacking direction of the plurality of filter cartridges 20 in the filter bottle 11 is a first direction, such as... Figure 1 and Figure 2 As indicated by arrow F1, each filter element 20 corresponds to a virtual projection surface, which is perpendicular to the first direction. The inlet 21 and outlet 22 of the filter element 20 are misaligned on this virtual projection surface. Generally, the filter element core 24 used for filtration in the filter element 20 divides the internal space of the unit shell 23 into two spaces. Water needs to pass through the filter element core 24 to achieve the filtration effect. The filter element core 24 can be hollow and surrounded by multiple layers of filter membrane. The offset between the inlet 21 and outlet 22 allows water to pass through multiple layers of filter membrane, further improving the filtration effect.

[0044] This can be understood as the raw water entering through the filter element inlet 21 needing to change its flow direction before it can flow out through the filter element outlet 22. During the stacking process, each filter element 20 needs to alternately change its orientation so that the filter element inlet 21 of each filter element 20 can be aligned and connected with the filter element outlet 22 of the adjacent filter element 20. Figure 1 and Figure 2 Taking the example shown, the filter cartridges 20 on the left, from top to bottom, are defined as the first filter cartridge 241, the second filter cartridge 242, the third filter cartridge 243, and the fourth filter cartridge 244. The filter inlet 21 of the fourth filter cartridge 244 is offset to the right relative to its own filter outlet 22. The third filter cartridge 243, to accommodate the position of the filter inlet 21 on the fourth filter cartridge 244, needs to be adjusted so that the filter outlet 22 of the third filter cartridge 243 is offset to the right relative to its own filter inlet 21. The second filter cartridge 242 and the first filter cartridge 241 follow the same pattern.

[0045] Alternatively, in other embodiments, the filter element unit 20 may also be designed such that the projections of the filter element inlet 21 and the filter element outlet 22 on the virtual projection surface overlap or partially overlap.

[0046] In some embodiments, such as Figures 1 to 5 As shown, each filter element 20 includes a casing 23 and a filter element core 24 located within the casing 23. The space enclosed by the casing 23 is a cylindrical space, and the filter element inlet 21 and filter element outlet 22 are respectively formed on the two end faces of the casing 23. The stacking direction of the multiple filter elements 20, i.e., the first direction, is consistent with the axial direction of these filter elements 20.

[0047] The housing 23 protects the filter element 24 within it. Regardless of the material of the filter element 24, the shape of the filter element 20 depends solely on the shape of the housing 23. It should be noted that the consistent shape mentioned in this application refers to the same shape and the same location of each water inlet, and does not limit the pattern, design, or logo on the housing to be consistent.

[0048] In some embodiments, such as Figures 1 to 5 As shown, the filter inlet 21 and filter outlet 22, belonging to the same filter element unit 20, are located on both sides of the axis of the unit shell 23.

[0049] like Figures 1 to 5 As shown, in some embodiments, the filter element 24 is a cylindrical structure open at both ends. The axis of the filter element 24 is parallel or collinear with the axis of the single-unit outer shell 23. The filter element inlet 21 corresponds to the hollow space of the filter element 24, and the filter element outlet 22 is offset to one side of the filter element 24. The raw water entering the hollow space of the filter element 24 from the filter element inlet 21 needs to pass through the filter element 24 radially along the cylindrical structure, and the filtered water flows out from the filter element outlet 22.

[0050] Specifically in one embodiment, such as Figures 1 to 5 As shown, the outer diameter of the filter element core 24 is smaller than the inner diameter of the single-unit shell 23. The axis of the filter element core 24 is parallel to and spaced apart from the axis of the single-unit shell 23. The two end faces of the filter element core 24 are respectively abutted against the two end faces of the single-unit shell 23. The filter element inlet 21 corresponds to the hollow space of the filter element core 24, and the filter element outlet 22 is offset to one side of the filter element core 24.

[0051] The filter element 24 is biased to one side of the single-unit housing 23, forming a space between the filter element 24 and the single-unit housing 23. Water passing through the filter element 24 reaches this space and is discharged from the filter element outlet 22.

[0052] More specifically, in some embodiments, such as Figure 5As shown, the outer diameter of the filter element core 24 is no greater than half the inner diameter of the single-unit shell 23, and the filter element outlet 22 and the filter element core 24 are located on both sides of the axis of the single-unit shell 23.

[0053] Furthermore, such as Figure 1 and Figure 2 As shown, in some embodiments, the filter bottle 11 includes a bottle body 111 and a bottle cap 112, with the bottle cap 112 disposed at the opening of the bottle body 111. The bottle cap 112 can be detachably connected to the bottle body 111, and the bottle cap 112 can be opened when a filter element 20 needs to be added to the filter bottle 11.

[0054] Multiple filter cartridges 20 are stacked sequentially along the height of the bottle body 111. A raw water inlet 1121 and / or a purified water outlet 1122 are formed on the bottle cap 112. A water supply pipe 12 is provided at the raw water inlet 1121 and / or the purified water outlet 1122. The water supply pipe 12 can introduce raw water into the raw water inlet 1121, or purified water from the purified water outlet 1122 can be discharged from the water supply pipe 12.

[0055] Optionally, the raw water inlet 1121 and the purified water outlet 1122 can also be formed at opposite ends of the filter bottle 11, where opposite ends of the filter bottle 11 refer to the two ends in the first direction, for example... Figure 1 and Figure 2 The top and bottom ends as shown in the image.

[0056] Furthermore, in some embodiments, such as Figure 1 and Figure 2 As shown, the water supply pipe 12 passes through the bottle cap 112, and the length of the water supply pipe 12 inserted into the bottle body 111 is adjustable. The water supply pipe 12 can press against the filter element 20 closest to the bottle cap 112 along the stacking direction of the filter element 20. A first water passage hole 121 is provided on the pipe wall of the water supply pipe 12 inserted into the filter bottle 11. The length direction of the water supply pipe 12 is parallel to the first direction.

[0057] like Figure 1 As shown, when the filter bottle 11 is filled with filter element units 20, the filter element units 20 can be pressed tightly by the bottle cap 112. Figure 2As shown, when the filter bottle 11 is not fully filled with filter element units 20, the length of the water supply pipe 12 inserted into the filter bottle 11 can be increased, allowing the water supply pipe 12 to press against the filter element unit 20 closest to the bottle cap 112, thereby pressing all the filter element units 20 together. Therefore, the filtration process can be completed normally regardless of whether filter element units 20 are added or removed from the filter bottle 11. Furthermore, since the end face of the water supply pipe 12 may need to press against the filter element unit 20, a first water passage hole 121 is provided on the pipe wall of the water supply pipe 12, allowing water to flow into or out of the water supply pipe 12 from the side. This is especially important when there is a relative offset between the filter element inlet 21 and the filter element outlet 22 on the filter element unit 20, such as... Figure 1 and Figure 2 As shown, as the number of filter cartridges 20 placed in the filter bottle 11 changes, the position of the filter cartridge inlet 21 of the filter cartridge 20 closest to the bottle cap 112 relative to the water supply pipe 12 will change. Therefore, it cannot be guaranteed that the end face of the water supply pipe 12 can always be connected to the filter cartridge inlet 21. In fact, the end face of the water supply pipe 12 may be blocked by the cartridge shell 23 of the filter cartridge 20. Therefore, the first water passage hole 121 formed on the pipe wall of the water supply pipe 12 can ensure that water can flow in and out of the water supply pipe 12 under any circumstances.

[0058] In some embodiments, an anti-slip structure can be provided on the bottle cap 112, and the anti-slip structure can move relative to the bottle cap 112 to switch states. When it is necessary to adjust the length of the water supply pipe 12 inserted into the bottle body 111, the anti-slip structure is adjusted to the release state, so that the water supply pipe 12 can slide relative to the bottle cap 112. When the water supply pipe 12 slides to the target position, the anti-slip structure can be adjusted to the locking state to prevent the water supply pipe 12 from sliding relative to the bottle cap 112, so that the water supply pipe 12 can provide a pressure force to the filter element 20.

[0059] In other embodiments, multiple limiting structures can be provided on the water supply pipe 12. These limiting structures are spaced apart along the length of the water supply pipe 12, and each limiting structure, when locked in place with the bottle cap 112, can prevent the water supply pipe 12 from sliding relative to the bottle cap 112. The position of the water supply pipe 12 relative to the bottle cap 112 can be adjusted as needed to ensure that the length of the water supply pipe 12 inserted into the bottle body 111 meets the requirements. Then, the limiting structures on the water supply pipe 12 corresponding to the bottle cap 112 are locked in place with the bottle cap 112.

[0060] Specifically, in one embodiment, the water supply pipe 12 is threadedly engaged with the bottle cap 112, and the length of the water supply pipe 12 inserted into the bottle body 111 can be adjusted by screwing it relative to the bottle cap 112. When the number of filter cartridges 20 in the filter bottle 11 increases, screwing the water supply pipe 12 relative to the bottle cap 112 reduces the length of the water supply pipe 12 inserted into the filter bottle 11. When the number of filter cartridges 20 in the filter bottle 11 decreases, screwing the water supply pipe 12 relative to the bottle cap 112 increases the length of the water supply pipe 12 inserted into the filter bottle 11, so that the length of the water supply pipe 12 inserted into the filter bottle 11 is adapted to the number of filter cartridges 20.

[0061] Furthermore, such as Figure 1 and Figure 2 As shown, in some embodiments, the filter bottle 11 is provided with a separator 13 to divide the space in the filter bottle 11 into two accommodating spaces 131. Multiple filter cartridges 20 can be stacked in each accommodating space 131. The separator 13 is provided with a second water passage hole 132.

[0062] The filter inlet 21 of the filter element unit 20 located in the accommodating space 131 and at the uppermost position is connected to the raw water inlet 1121, and the filter outlet 22 of the filter element unit 20 located at the lowermost position is connected to the second water passage 132.

[0063] The filter inlet 21 of the upstream filter element unit 20 in the other accommodating space 131 is connected to the second water passage 132, and the filter outlet 22 of the downstream filter element unit 20 is connected to the purified water outlet 1122.

[0064] Multiple filter cartridges 20 can be placed in each of the two accommodating spaces 131, and the number of filter cartridges 20 can be adjusted as needed. In this application, "upstream" and "downstream" are descriptions based on the water flow direction in the modular water purification device 10; objects that the water flows over first are upstream of objects that the water flows over later, and objects that the water flows over later are downstream of objects that the water flows over first. Figure 1 and Figure 2 In the embodiment shown, the water flow direction in the left accommodating space 131 is generally from top to bottom, and the water flow direction in the right accommodating space 131 is generally from bottom to top.

[0065] In one specific embodiment, the outer peripheral surface of each filter element 20 is sealed against the side wall of the corresponding accommodating space 131. For example, when the outer peripheral surface of the filter element 20 is cylindrical, the space enclosed by the side wall of the accommodating space 131 is cylindrical, and the outer peripheral surface of the filter element 20 is sealed against the side wall of the accommodating space 131. The separator 13 and the filter bottle 11 together form a space with the same shape as the outer peripheral surface of the filter element 20.

[0066] The separator 13 is arranged along the height direction of the filter bottle 11, dividing the internal space of the filter bottle 11 into two accommodating spaces 131, the height direction of each accommodating space 131 being consistent with the first direction. In some embodiments, both the raw water inlet 1121 and the purified water outlet 1122 are provided with water supply pipes 12, and the lengths of the two water supply pipes 12 inserted into the bottle body 111 are adjustable, with one water supply pipe 12 corresponding to one accommodating space 131.

[0067] like Figure 1 As shown, in some embodiments, each of the two accommodating spaces 131 is provided with four filter cartridges 20. The four filter cartridges 20 arranged sequentially along the water flow direction in one accommodating space 131 are a PP cotton filter cartridge, a granular activated carbon filter cartridge, a compressed activated carbon filter cartridge, and a scale inhibitor filter cartridge. The four filter cartridges arranged sequentially along the water flow direction in the other accommodating space 131 are an ultrafiltration membrane filter cartridge, a nanofiltration membrane filter cartridge, a reverse osmosis membrane filter cartridge, and a post-activated carbon filter cartridge. The filter cartridge inlet 21 of the PP cotton filter cartridge is connected to the raw water inlet 1121, and the filter cartridge outlet 22 of the post-activated carbon filter cartridge is connected to the purified water outlet 1122.

[0068] Furthermore, such as Figure 1 and Figure 2 As shown, the modular water purification device also includes a wastewater proportioning valve 14, the inlet of which is connected to the space between the outlet 22 of the scale inhibitor filter element and the inlet 21 of the ultrafiltration membrane filter element. In actual use, the user can adjust the ratio of purified water to wastewater flow through the wastewater proportioning valve 14.

[0069] Furthermore, such as Figure 6 As shown, in some embodiments, the portion of the filter element unit 20 used to form the filter element inlet 21 is provided with a groove 231, the filter element inlet 21 is formed on the bottom wall of the groove 231, and a raw water space 245 is provided in the filter element unit 20 at a position corresponding to the groove 231, with the sidewall of the groove 231 and the sidewall of the raw water space 245 arranged at intervals.

[0070] When it is necessary to remove the filter element 20 from the filter bottle 11, the filter element removal tool 30 can be inserted into the filter element inlet 21. The filter element removal tool 30 has a tail hook 321. Since the side wall of the groove 231 and the side wall of the raw water space 245 are arranged at intervals, the tail hook 321 of the filter element removal tool 30 can be used to hook the side wall of the groove 231, thereby pulling the filter element 20 out of the filter bottle 11.

[0071] In some embodiments, the raw water space 245 is the hollow space of the filter element core 24, and the sidewalls of the filter element core 24 and the sidewalls of the groove 231 are spaced apart, thereby ensuring that the filter element disassembly tool 30 can hook onto the sidewall of the groove 231.

[0072] In some embodiments of this application, a water purification kit is provided, including the aforementioned modular water purification device 10.

[0073] Furthermore, the water purification kit also includes a filter removal tool 30. For example... Figure 6 and Figure 7 As shown, the filter element removal tool 30 includes a tube 31 and a filament 32. The filament 32 is movably inserted into the tube 31, and one end of the filament 32 can extend outside the tube 31, with that end forking to form two tail hooks 321. The two tail hooks 321 bend in opposite directions, and the forking angle between the two tail hooks 321 is variable. The filament 32 can be made of steel wire or other deformable metal wire.

[0074] During disassembly, first pull the filament 32 so that the forked end of the filament 32 is gradually pulled into the tube body 31. Under the action of the tube body 31, the forking angle between the two tail hooks 321 decreases. Then, insert the tube body 31 and the filament 32 together into the filter element inlet 21 until the end of the tube body 31 is located in the raw water space 245. Then, push the filament 32 relative to the tube body 31 so that the forked end of the filament 32 extends out of the tube body 31. The two tail hooks 321, freed from the restraint of the tube body 31, rotate in opposite directions, so that the forking angle between the two tail hooks 321 increases until the forking angle reaches a level that allows the two tail hooks 321 to hook onto the side wall of the groove 231. Then, pull the tube body 31 and the filament 32 outwards simultaneously so that the filament 32 pulls the filter element unit 20 out of the filter bottle 11. After the filter element unit 20 is removed from the filter bottle 11, the thin wire 32 is pulled relative to the tube body 31 so that the two tail hooks 321 come closer to each other, and then the filter element disassembly tool 30 is removed from the filter element unit 20.

[0075] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0076] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0077] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0078] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0079] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0080] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A modular water purification device, characterized in that, The utility model relates to a filter bottle, which comprises: a filter bottle having a raw water inlet and a purified water outlet; a plurality of filter core units stacked in the filter bottle, each of which is detachably installed in the filter bottle, each of the filter core units has a filter core water inlet and a filter core water outlet, the relative positions of the filter core water inlet and the filter core water outlet on each of the filter core units are consistent, the filter core water outlet of the filter core unit located upstream is in communication with the filter core water inlet of the filter core unit located downstream, the filter core water inlet of the filter core unit located most upstream is in communication with the raw water inlet, and the filter core water outlet of the filter core unit located most downstream is in communication with the purified water outlet; the stacking direction of the plurality of filter core units in the filter bottle is a first direction, each of the filter core units corresponds to a virtual projection plane, and the virtual projection plane is perpendicular to the first direction, and the projections of the filter core water inlet and the filter core water outlet of the filter core unit on the virtual projection plane are arranged in a staggered manner.

2. The cube accumulation water purifier according to claim 1, wherein Each of the filter core units comprises a unit shell and a filter core body located in the unit shell, the space surrounded by the unit shell is a columnar space, and the filter core water inlet and the filter core water outlet are formed on the two end faces of the unit shell.

3. The cube building water purifier according to claim 2, wherein, The filter core water inlet and the filter core water outlet of the same filter core unit are located on the two sides of the axis of the unit shell.

4. The cube accumulation water purifier according to claim 2, wherein The filter core body has a tubular structure with two open ends, the outer diameter of the filter core body is smaller than the inner diameter of the unit shell, the axis of the filter core body is parallel to and spaced apart from the axis of the unit shell, the two end faces of the filter core body are abutted against the two ends of the unit shell, the filter core water inlet corresponds to the hollow space of the filter core body, and the filter core water outlet is offset to one side of the filter core body.

5. The cube building water purifier according to claim 4, wherein, The outer diameter of the filter core body is not greater than half of the inner diameter of the unit shell, and the filter core water inlet and the filter core water outlet are located on the two sides of the axis of the unit shell.

6. The cube-type water purifier according to any one of claims 1 to 5, wherein The filter bottle comprises a bottle body and a bottle cap, the plurality of filter core units are sequentially stacked along the height direction of the bottle body, the bottle cap is arranged at the opening of the bottle body, the raw water inlet and / or the purified water outlet are formed on the bottle cap, and a water delivery pipe is arranged at the raw water inlet and / or the purified water outlet.

7. The cube accumulation water purifier according to claim 6, wherein The water delivery pipe penetrates through the bottle cap, the length of the water delivery pipe inserted into the bottle body is adjustable, the water delivery pipe can abut against the filter core unit closest to the bottle cap along the stacking direction of the filter core units, and a first water passing hole is arranged on the wall of the water delivery pipe inserted into the filter bottle.

8. The cube accumulation water purifier according to claim 7, wherein The water delivery pipe is threadedly connected with the bottle cap, and the length of the water delivery pipe inserted into the bottle body is adjusted by rotating the water delivery pipe relative to the bottle cap.

9. The cube building water purifier according to any one of claims 1 to 5, characterized in that, A partition is arranged in the filter bottle to divide the space in the filter bottle into two accommodation spaces, a plurality of filter core units can be stacked in each of the accommodation spaces, and the partition is provided with a second water passing hole. The filter inlet of the filter element monomer located in the most upstream of the accommodation space communicates with the raw water inlet, and the filter outlet of the filter element monomer located in the most downstream communicates with the second water passage; The filter inlet of the filter element monomer located in the most upstream of the other accommodation space communicates with the second water passage, and the filter outlet of the filter element monomer located in the most downstream communicates with the clean water outlet.

10. The cube accumulation water purifying device according to claim 9, characterized in that, The outer circumferential surface of each filter element monomer is sealed against the side wall of the corresponding accommodation space.

11. The cube building water purifier according to any one of claims 1 to 5, characterized in that, The part of the filter element monomer for forming the filter inlet is provided with a groove, the filter inlet is formed on the bottom wall of the groove, the position corresponding to the groove in the filter element monomer is provided with a raw water space, and the side wall of the groove is arranged in a spaced manner with the side wall of the raw water space.

12. The cube building water purifier according to any one of claims 1 to 5, characterized in that, The shapes of the filter element monomers are consistent.

13. A water purification kit characterized by, The filter element monomer comprises the filter element monomer of any one of claims 1 to 12 and a filter element dismounting tool, the filter element dismounting tool comprises a pipe body and a filament, the filament is movably inserted into the pipe body, one end of the filament can be extended out of the pipe body and the end of the filament is bifurcated to form two tail hooks, the bending directions of the two tail hooks are opposite, and the bifurcation angle between the two tail hooks is variable.

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