Filter cartridge device and water treatment device

Abstract

The utility model relates to water purification equipment technical field provides a filter core device and water treatment equipment, filter core device includes filter core cylinder and the filter core head of connecting in filter core cylinder end, the filter core head includes joint subassembly, the joint subassembly includes at least two joints with joint channel, each joint is side by side along the first direction and is arranged, the filter core head is equipped with the bended channel to communicate the chamber of filter core cylinder and joint channel, the end of filter core head away from joint subassembly is equipped with locking cooperation structure, locking cooperation structure is used for with the locking piece cooperation of filter host, to avoid joint subassembly relative filter host slackening. The filter core device will each joint side by side along the radial direction setting, can reduce the axial length of filter core device, alleviates the impact of water flow, locking cooperation structure can avoid joint subassembly relative filter host slackening, guarantees the stability that filter core device and filter host joint connect.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a filter cartridge device and a water treatment device. Background Technology

[0002] In existing water treatment devices (such as water purifiers), the inlet and outlet connectors of the filter cartridge are usually located at the end of the filter cartridge along the axial direction of the cartridge, i.e., a "straight in and straight out" design. This design not only causes the water flow to directly impact the end of the filter cartridge at a high speed, making it easy for the filter media (such as activated carbon particles, fibers, etc.) inside the filter cartridge to shift, but also requires sufficient space to be reserved at the end of the filter cartridge for the connection of the inlet and outlet connectors. This results in a relatively long overall length of the filter cartridge device, occupying a large amount of space. Utility Model Content

[0003] This utility model proposes a filter cartridge device and a water treatment device, aiming to solve the problems of large water flow impact, easy displacement of internal filter media, excessive axial length of filter cartridges, and large installation space occupation caused by the "straight in and straight out" design of traditional water treatment device filter cartridges.

[0004] The filter element device proposed in this utility model includes a filter element cylinder and a filter element head connected to the end of the filter element cylinder. The filter element head includes a connector assembly, which includes at least two connectors with connector channels. Each connector is arranged side by side along a first direction. The filter element head has a bent channel to connect the chamber of the filter element cylinder and the connector channels. The end of the filter element head away from the connector assembly is provided with a locking engagement structure. The locking engagement structure is used to cooperate with the locking part of the filter host to prevent the connector assembly from becoming loose relative to the filter host.

[0005] In one embodiment, a filter element is disposed inside the filter cartridge, and an outer cavity of the filter element is formed between the peripheral sidewall of the filter element and the inner peripheral wall of the filter cartridge. A hollow channel is formed in the filter element along the axial direction. The connector assembly includes a first connector and a second connector arranged side by side. The bending channel includes a first bending channel and a second bending channel. The first bending channel connects the connector channel of the first connector and the outer cavity of the filter element, and the second bending channel connects the connector channel of the second connector and the hollow channel.

[0006] In one embodiment, the first bending channel includes a first sub-channel and a second sub-channel. The first sub-channel is connected to the connector channel of the first connector and extends along the length direction of the first connector. The second sub-channel is perpendicular to the first sub-channel, and one end of the second sub-channel is connected to the first sub-channel, while the other end is connected to the outer cavity of the filter element. The second bending channel includes a third sub-channel and a fourth sub-channel. The third sub-channel is connected to the connector channel of the second connector and extends along the length direction of the second connector. The fourth sub-channel is perpendicular to the third sub-channel, and one end of the fourth sub-channel is connected to the third sub-channel, while the other end is connected to the hollow channel.

[0007] In one embodiment, the filter head further includes a cover and a boss. The cover is sleeved on or inserted into the filter cartridge. The boss is located at the end of the cover away from the filter cartridge. The first connector and the second connector are connected side-by-side to one side of the boss. The boss includes a side wall and a top wall. The side wall is connected to the cover and forms a cavity. The top wall is connected to the end of the side wall away from the cover and covers the cavity. The first sub-channel and the third sub-channel are located on the top wall. A sleeve protrudes from the side of the top wall facing the filter cartridge. The sleeve forms the fourth sub-channel. The sleeve and the side wall form the second sub-channel.

[0008] In one embodiment, the sleeve is provided with reinforcing ribs on its periphery, the reinforcing ribs being arranged circumferentially around the sleeve at intervals, one end of the reinforcing ribs being connected to the sleeve, and the other end of the reinforcing ribs being connected to the side wall. The reinforcing ribs divide the second sub-channel into several cavities, adjacent cavities being interconnected, and one cavity being interconnected with the outer cavity of the filter element. And / or, the filter element device further includes an adapter, the adapter being disposed inside the filter element cylinder and located between the filter element and the filter element head, the adapter being used to guide water from the second sub-channel to the outer cavity of the filter element and to guide water from the hollow channel to the sleeve.

[0009] In one embodiment, the filter element device further includes an adapter, which includes an end plate and a central tube. The end plate is disposed inside the filter element cylinder and covers the filter element axially. A first chamber is formed between the end plate and the filter element head. The outer circumference of the end plate is provided with a water inlet to connect the first chamber and the outer cavity of the filter element. The central tube is located in the first chamber and is connected to the end plate, connecting the hollow channel and the sleeve. The central tube is provided with ribs on its periphery. The ribs are arranged circumferentially around the central tube. The ribs have a first end facing the filter element head and a second end connected to the end plate. The width of the ribs gradually increases from the first end to the second end.

[0010] In one embodiment, the boss has a first sidewall and a second sidewall disposed opposite to each other. The first sidewall and the second sidewall are planar and parallel to the first connector and the second connector, respectively. The distance between the first sidewall and the second sidewall is L1, where L1 ≥ 10 mm; or, the height of the boss is h, where h ≥ 10 mm. Alternatively, both the first connector and the second connector are tubular structures with the same diameter. The inner diameters of the first connector and the second connector are defined as d2, where 2 mm ≤ d2 ≤ 8 mm; or, the distance between the central axis of the first connector and the central axis of the second connector is defined as d3, where 11 mm ≤ d3 ≤ 19 mm.

[0011] In one embodiment, the locking mechanism is a fixed snap-fit ​​structure, which is used to engage and fix with the locking element of the filter host; or, the locking mechanism is a movable snap-fit, which has a first state of extending from the filter head and a second state of being received in the filter head. When the movable snap-fit ​​is in the first state, it can engage and fix with the locking element of the filter host.

[0012] In one embodiment, the locking member includes a limiting strip, and a limiting portion is provided at the end of the filter head away from the filter cartridge. The limiting portion is located between the connector assembly and the locking engagement structure, and is used to receive or abut the limiting strip, thereby limiting the limiting strip. Alternatively, the locking member includes a limiting strip, and a limiting portion is provided at the end of the filter head away from the filter cartridge. The limiting portion is a slot, which is located between the connector assembly and the locking engagement structure and extends perpendicularly to the connector, and is used to receive the limiting strip, thereby limiting the limiting strip. The mating ends of each connector are flush, and the distance between the side of the slot near the connector and the mating end of the connector is L2, where 15mm ≤ L2 ≤ 90mm.

[0013] This utility model also provides a water treatment device, which includes a filter host and the filter cartridge device mentioned above. The filter host has a docking assembly, which includes a female seat, a water flow interface connected to the female seat, and a locking member. The female seat is located on the side facing the connector. The number of water flow interfaces is the same as the number of connectors. One water flow interface is docked with one connector. The locking member has a first state of being engaged with the locking structure and a second state of being disengaged from the locking structure.

[0014] This utility model's filter cartridge device arranges the connectors side-by-side along the radial direction of the filter cartridge head, and incorporates a bent channel within the filter cartridge head to connect the chamber of the filter cartridge and the corresponding connector channel. This not only reduces the axial length of the filter cartridge device, effectively mitigating the impact of water flow and preventing displacement of the internal flow medium, but also allows for side connection to the water inlet of the filtration unit, reducing the overall axial space occupied by the water treatment device. Simultaneously, a locking mechanism is provided at the end of the filter cartridge head furthest from the connector assembly. This locking mechanism engages with the locking components of the filtration unit, preventing the connector assembly from loosening relative to the filtration unit and ensuring the stability of the connection between the filter cartridge device and the filtration unit connector. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of an embodiment of the filter element device provided by this utility model;

[0017] Figure 2 This is a top view of an embodiment of the filter element device provided by this utility model;

[0018] Figure 3 yes Figure 2 A cross-sectional view of line A-A;

[0019] Figure 4 yes Figure 2 Cross-sectional view of section B-B;

[0020] Figure 5 This is a bottom view of the filter head in one embodiment of the filter device provided by this utility model;

[0021] Figure 6 This is an assembly diagram of the filter element, adapter and base in one embodiment of the filter element device provided by this utility model;

[0022] Figure 7This is a cross-sectional view of the filter head in one embodiment of the filter device provided by this utility model;

[0023] Figure 8 This is a schematic diagram of the docking assembly in the filter host of the water treatment device provided by this utility model;

[0024] Figure 9 yes Figure 8 A schematic diagram showing the docking components and filter element device in a snap-fit ​​state;

[0025] Figure 10 This is a front view of the docking component provided by this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Filter cartridge; 2. Filter element; 21. Filter element outer cavity; 22. Hollow channel; 3. Filter element head; 31. Connector assembly; 311. First connector; 312. Second connector; 314. Sealing groove; 32. Bending channel; 321. First bending channel; 3211. First sub-channel; 3212. Second sub-channel; 322. Second bending channel; 3221. Third sub-channel; 3222. Fourth sub-channel; 33. Locking structure; 331. Snap-fit ​​part; 332. Pressing part; 333. Connecting part; 34. Cover; 35. Boss; 351. Container 352. Cavity; 353. Elastic element; 354. First sidewall; 355. Second sidewall; 36. Sleeve; 37. Reinforcing rib; 38. Slot; 4. Adapter; 41. End plate; 411. First limiting block; 42. Central tube; 43. Plate rib; 5. Base; 51. Second limiting block; 6. First chamber; 7. Water outlet; 8. Connecting assembly; 81. Female seat; 811. First connecting seat; 812. Second connecting seat; 82. Water flow interface; 83. Locking element; 831. First cantilever; 832. Second cantilever; 833. Third cantilever; 834. Limiting strip. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] It should be noted that the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to direct setup or connection, or indirect setup or connection through centered components or centered structures.

[0030] Furthermore, in embodiments of this utility model, terms such as "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, or in a conventional placement or usage state. These terms are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure, feature, device, or element referred to must have a specific orientation or positional relationship, nor that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0031] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / embodiments in this utility model will not be described separately.

[0032] In existing water treatment devices (such as water purifiers), the inlet and outlet connectors of the filter cartridge are usually located at the end of the filter cartridge along the axial direction of the cartridge, i.e., a "straight in and straight out" design. This design not only causes the water flow to directly impact the end of the filter cartridge at a high speed, making it easy for the filter media (such as activated carbon particles, fibers, etc.) inside the filter cartridge to shift, but also requires sufficient space to be reserved at the end of the filter cartridge for the connection of the inlet and outlet connectors. This results in a relatively long overall length of the filter cartridge device, occupying a large amount of space.

[0033] To solve this problem, this utility model proposes a filter element device.

[0034] Reference Figures 1 to 4 The filter element device proposed in this utility model includes a filter element cylinder 1 and a filter element head 3 connected to the end of the filter element cylinder 1. The filter element head 3 includes a connector assembly 31, which includes at least two connectors with connector channels. Each connector is arranged side by side along a first direction. The filter element head 3 is provided with a bent channel 32 to connect the chamber of the filter element cylinder 1 and the connector channels. The end of the filter element head 3 away from the connector assembly 31 is provided with a locking engagement structure 33. The locking engagement structure 33 is used to cooperate with the locking member 83 of the filter host to prevent the connector assembly 31 from loosening relative to the filter host.

[0035] It should be noted that the first direction is the radial direction of the filter cartridge 1, i.e., the X direction indicated in the figure. In this utility model, the filter cartridge device arranges the connectors side-by-side along the radial direction of the filter head 3, and provides a bent channel 32 within the filter head 3 to connect the chamber of the filter cartridge 1 and the corresponding connector channel. This not only reduces the axial length of the filter cartridge device, effectively mitigating the impact of water flow and preventing displacement of the internal flow medium of the filter cartridge 2, but also allows for side connection to the water flow interface 82 of the filter host, reducing the overall axial space occupied by the water treatment device. Simultaneously, a locking fit structure 33 is provided at the end of the filter head 3 furthest from the connector assembly 31. The locking fit structure 33 engages with the locking member 83 of the filter host, preventing the connector assembly 31 from loosening relative to the filter host and ensuring the stability of the connection between the filter cartridge device and the filter host connector.

[0036] Specifically, in this utility model's filter cartridge device, one end of the filter cartridge 1 is closed, and the other end is open. A filter head 3 is connected to the open end to seal the opening. The outer diameter d1 of the filter cartridge 1 (e.g., ...) Figure 1 The diameter (d1) can be greater than or equal to 50mm and less than or equal to 130mm. In specific applications, d1 can be, but is not limited to, 50mm, 70mm, 90mm, 110mm, and 130mm. The filter head 3 includes a connector assembly 31, which includes at least two connectors with connector channels. Taking two connectors as an example, these two connectors are defined as the first connector 311 and the second connector 312. Both the first connector 311 and the second connector 312 are tubular structures. The first connector 311 is used to connect to the inlet pipe, and the second connector 312 is used to connect to the outlet pipe, and the two connectors are arranged side by side. The diameter of the first connector 311 and the second connector 312 can be the same. In some embodiments, the inner diameter d2 of the two connectors (e.g., ...) can be the same. Figure 3 The distance between the central axis of the first connector 311 and the central axis of the second connector 312 is d3 (as indicated by the markings). The distance between the central axis of the first connector 311 and the central axis of the second connector 312 is d3 (as indicated by the markings). All these distances are greater than or equal to 2mm and less than or equal to 8mm. This range ensures smooth water flow within the connector without making it too large and occupying too much space. Figure 2 (Indicated) The distance is greater than or equal to 11 mm and less than or equal to 19 mm. This distance range will not make the distance between the joints too far or too close. A filter element 2 is provided inside the filter element cylinder 1. The diameter of the filter element 2 is smaller than the inner diameter of the filter element cylinder 1, so that an outer cavity 21 is formed between the peripheral wall of the filter element 2 and the inner peripheral wall of the filter element cylinder 1, and a hollow channel 22 is formed in the filter element 2 along the axial direction. Correspondingly, the filter element head 3 is provided with a first bending channel 321 and a second bending channel 322. The first bending channel 321 connects the joint channel of the first joint 311 and the outer cavity 21 of the filter element, and the second bending channel 322 connects the joint channel of the second joint 312 and the hollow channel 22.

[0037] Reference Figure 2The outer periphery of the first connector 311 and the second connector 312 is provided with a plurality of sealing grooves 314 for accommodating the sealing ring, thereby ensuring the sealing performance of the connector. The diameter of the bottom of the sealing groove 314 is d4, 4.5mm≤d4≤8.5mm, and the diameter of the opening of the sealing groove 314 is d5, 6.5mm≤d5≤14.5mm. This range can ensure the installation stability of the sealing ring.

[0038] The flow path of this filter element device is as follows: water flows in from the first connector 311, and then flows along the first bend channel 321 to the outer cavity 21 of the filter element. Under the action of water pressure, the water in the outer cavity 21 passes through the pores of the filter element 2 and enters the hollow channel 22. During this process, the filter element 2 adsorbs and intercepts impurities in the water, thereby purifying the water. The pure water in the hollow channel 22 flows to the second bend channel 322 under the action of water pressure, and finally is discharged outward from the second connector 312 and the outlet pipe.

[0039] The first bending channel 321 includes a first sub-channel 3211 and a second sub-channel 3212. The first sub-channel 3211 is connected to the connector channel of the first connector 311 and extends along the length direction of the first connector 311. The second sub-channel 3212 is perpendicular to the first sub-channel 3211, and one end of the second sub-channel 3212 is connected to the first sub-channel 3211, and the other end is connected to the outer cavity 21 of the filter element.

[0040] The second bending channel 322 includes a third sub-channel 3221 and a fourth sub-channel 3222. The third sub-channel 3221 is connected to the connector channel of the second connector 312 and extends along the length of the second connector 312. The fourth sub-channel 3222 is perpendicular to the third sub-channel 3221, and one end of the fourth sub-channel 3222 is connected to the third sub-channel 3221, and the other end is connected to the hollow channel 22.

[0041] The first bend channel 321 guides water flow from the first connector 311 to the outer cavity 21 of the filter element, and the second bend channel 322 guides water from the hollow channel 22 to the second connector 312. The first bend channel 321 and the second bend channel 322 respectively achieve water flow deflection through two vertically arranged sub-channels, which can effectively buffer the impact of water flow. The first bend channel 321 and the second bend channel 322 can be external pipes installed inside the filter element head 3, or they can be channels pre-reserved inside the filter element head 3 through molding or other processing techniques.

[0042] Reference Figure 5The filter head 3 also includes a cover 34 and a boss 35. The cover 34 is sleeved on or inserted into the filter cartridge 1. The boss 35 is located at the end of the cover 34 away from the filter cartridge 1. A first connector 311 and a second connector 312 are connected side-by-side to one side of the boss 35. The boss 35 includes a side wall and a top wall. The side wall is connected to the cover 34 and forms a cavity. The top wall is connected to the end of the side wall away from the cover 34 and covers the cavity. A first sub-channel 3211 and a third sub-channel 3221 are located on the top wall. A sleeve 36 protrudes from the side of the top wall facing the filter cartridge 2. The sleeve 36 forms a fourth sub-channel 3222, and the sleeve 36 and the side wall form a second sub-channel 3212.

[0043] Specifically, the cover 34 is used to connect with the filter cartridge 1, and can be a continuous annular structure or a discontinuous annular structure. When the inner diameter of the cover 34 matches the outer diameter of the filter cartridge 1, the cover 34 is sleeved on the filter cartridge 1 to connect with it. When the outer diameter of the cover 34 matches the inner diameter of the filter cartridge 1, the cover 34 is inserted into the filter cartridge 1 to connect with it. The cover 34 and the filter cartridge 1 can be an interference fit, or a threaded structure can be provided between the cover 34 and the filter cartridge 1 to achieve threaded fixation. A boss 35 is provided at the end of the cover 34 away from the filter cartridge 1. The boss 35 includes a side wall and a top wall. The side wall is connected to the cover 34 and forms a cavity. The top wall is connected to the end of the side wall away from the cover 34 and covers the cavity. The first connector 311 and the second connector 312 are connected side-by-side to the boss 35. The first sub-channel 3211 is located on the top wall and communicates with the connector channel of the first connector 311. The third sub-channel 3221 is located on the top wall and communicates with the connector channel of the second connector 312. A sleeve 36 protrudes from the side of the top wall facing the filter element 2. The sleeve 36 encloses and forms the fourth sub-channel 3222. The sleeve 36 and the side wall enclose and form the second sub-channel 3212. In summary, in this embodiment, the first bent channel 321 and the second bent channel 322 are channels pre-reserved inside the filter element head 3 through the processing technology, which can reduce the use of external pipes and ensure the sealing and stability of the filter element head 3.

[0044] The boss 35 has a first sidewall 353 and a second sidewall 354 disposed opposite to each other. The first sidewall 353 and the second sidewall 354 are arranged in a planar shape. In some embodiments, the distance L1 between the first sidewall 353 and the second sidewall 354 is (e.g., Figure 2 The indicated value (L1) can be 60% to 80% of the outer diameter d1 of the filter cartridge 1. In specific applications, L1 can be greater than or equal to 66mm, and the height h of the boss (e.g., ...) Figure 3 (The marking) can be greater than or equal to 10mm. This is beneficial for the channel setup, ensuring that the water can flow smoothly within the channel.

[0045] Please continue to refer to Figure 5The sleeve 36 is provided with reinforcing ribs 37 on its periphery. The reinforcing ribs 37 are arranged circumferentially around the sleeve 36. One end of the reinforcing rib 37 is connected to the sleeve 36, and the other end of the reinforcing rib 37 is connected to the side wall. The reinforcing ribs 37 divide the second sub-channel 3212 into several compartments, and adjacent compartments are connected. One compartment is connected to the outer cavity 21 of the filter element. The setting of the reinforcing ribs 37 increases the connection strength between the sleeve 36 and the side wall, which can enhance the structural strength of the entire filter element head 3, so that the filter element head 3 can better resist water flow impact and external pressure.

[0046] Reference Figure 4 and Figure 6 The embodiment of this filter element device also includes an adapter 4, which is disposed inside the filter element cylinder 1 and located between the filter element 2 and the filter element head 3. The adapter 4 is used to guide the water in the second sub-channel 3212 to the outer cavity 21 of the filter element and to guide the water in the hollow channel 22 to the fourth sub-channel 3222.

[0047] Specifically, the adapter 4 includes an end plate 41 and a central tube 42. The end plate 41 is disposed inside the filter cartridge 1 and covers the filter cartridge 2 axially. A first chamber 6 is formed between the end plate 41 and the filter cartridge head 3. The first chamber 6 provides a buffer space for the water flow, allowing the water flow to stabilize within the first chamber 6 before entering the outer cavity 21 of the filter cartridge, reducing turbulence. The outer ring of the end plate 41 is provided with a water outlet 7 to connect the first chamber 6 and the outer cavity 21 of the filter cartridge, which can guide the water in the first chamber 6 to the outer cavity 21 of the filter cartridge in an orderly manner, ensuring that the water flow first enters the outer cavity 21 of the filter cartridge, is filtered by the filter cartridge 2, and then enters the hollow channel 22. The central tube 42 is located in the first chamber 6, and is connected to the end plate 41 and connects the hollow channel 22 and the sleeve 36, thereby guiding the water in the hollow channel 22 to the sleeve 36, ensuring the clarity and stability of the water flow path.

[0048] In summary, referring to Figure 4 The flow path of this filter element device is as follows: water flows in from the first connector 311, and then flows sequentially through the first sub-channel 3211 and the second sub-channel 3212 into the first chamber 6. The water in the first chamber 6 flows into the outer cavity 21 of the filter element through the water outlet 7. Under the action of water pressure, the water in the outer cavity 21 of the filter element passes through the pores of the filter element 2 and enters the hollow channel 22. Under the action of water pressure, the pure water in the hollow channel 22 flows through the fourth sub-channel 3222 and the third sub-channel 3221, and finally is discharged outward from the second connector 312 and the water outlet pipe.

[0049] Reference Figure 6The central tube 42 may be provided with ribs 43 around its periphery. The ribs 43 are arranged circumferentially around the central tube 42, with a first end facing the filter head 3 and a second end connected to the end plate 41. The width of the ribs 43 gradually increases from the first end to the second end. The design of the ribs 43 enhances the structural rigidity of the central tube 42, making it less prone to bending or deformation under water pressure. In actual installation, the second end is often located below the first end. Due to the gravity and impact of the water flow, the second end often bears greater water pressure than the first end. Making the ribs 43 at the second end wider provides stronger impact resistance, while making the ribs 43 at the first end narrower reduces unnecessary material usage, lowering weight and cost.

[0050] The adapter 4 has a first limiting groove on the side facing the filter element 2, and part of the filter element 2 is inserted into the first limiting groove. The size of the first limiting groove matches the size of the filter element 2, so that the peripheral sidewall of the filter element 2 can fit tightly with the sidewall of the first limiting groove, thereby preventing the filter element 2 from shifting or shaking inside the filter element cylinder 1.

[0051] The filter cartridge 1 also includes a base 5, located at the end of the filter cartridge 1 furthest from the filter head 3. A second limiting groove is provided on the side of the base 5 facing the filter head 3, and the filter element 2 is partially inserted into the second limiting groove. The size of the second limiting groove matches the size of the filter element 2, allowing the peripheral sidewall of the filter element 2 to fit tightly against the sidewall of the second limiting groove, thereby preventing displacement or shaking of the filter element 2 within the filter cartridge 1. Under the combined constraint of the first and second limiting grooves, the filter element 2 maintains high stability.

[0052] Continue to refer to Figure 6 To prevent the adapter 4 from rotating inside the filter cartridge 1, a first limiting block 411 is provided on the periphery of the end plate 41. The first limiting blocks 411 are arranged circumferentially at intervals. The inner wall of the filter cartridge 1 is provided with a first limiting groove that cooperates with the first limiting block 411. The number of first limiting grooves is the same as the number of first limiting blocks 411. A first limiting block 411 is embedded in a first limiting groove, which can effectively prevent the adapter 4 from being displaced or rotated due to water flow impact or other external forces, ensuring that the adapter 4 remains in a fixed position after installation.

[0053] Similarly, to prevent the base 5 from rotating inside the filter cartridge 1, a second limiting block 51 is provided on the periphery of the base 5. The second limiting blocks 51 are arranged circumferentially at intervals. The inner wall of the filter cartridge 1 is provided with a second limiting groove that cooperates with the second limiting block 51. The number of second limiting grooves is the same as the number of second limiting blocks 51. A second limiting block 51 is embedded in a second limiting groove, which can effectively prevent the base 5 from being displaced or rotated due to water flow impact or other external forces, ensuring that the base 5 remains in a fixed position after installation.

[0054] It should be noted that, in the embodiments of this utility model, a third connector for discharging wastewater can be added on the basis of the first connector 311 and the second connector 312. The third connector is arranged side by side with the first connector 311 and the second connector 312. At this time, a wastewater chamber is provided between the filter element and the filter element head. The filter element head 3 is also provided with a third bending channel. The third bending channel connects the connector channel of the third connector and the wastewater chamber, so that the wastewater in the wastewater chamber can be discharged.

[0055] The end of the filter head 3 furthest from the connector assembly 31 is provided with a locking engagement structure 33 that engages with the locking element 83. This locking engagement structure 33 can be a fixed snap-fit ​​structure, used to fasten and secure it to the locking element 83 of the filter host. A "fixed snap-fit ​​structure" means that this snap-fit ​​structure is fixedly connected to the filter head 3; its position and shape are relatively fixed and cannot move, providing a stable connection. Pressing the locking element 83 of the filter host to the appropriate position will fasten the locking element 83 to the snap-fit ​​structure. The fixed snap-fit ​​structure offers high connection stability and is suitable for scenarios where frequent filter element 2 replacement is not required.

[0056] Alternatively, the locking mechanism 33 can be a movable latch, which has a first state extending radially from the filter head 3 and a second state being received within the filter head 3. When the movable latch is in the first state, it can engage and fix with the locking member 83 of the filter host. The movable latch makes the connection and disassembly between the filter head 3 and the locking member 83 more convenient, thereby facilitating the separation of the filter element assembly from the filter host and improving the user's operational convenience when replacing the filter element 2. It is suitable for scenarios where the filter element 2 needs to be replaced frequently.

[0057] Specific reference Figure 7 The filter head 3 has a receiving cavity 351 and an opening communicating with the receiving cavity 351 at the end away from the connector. The opening is oriented radially towards the filter head 3. The movable buckle is movably inserted through the opening. The receiving cavity 351 is provided with an elastic element 352. The telescopic end of the elastic element 352 is connected to the movable buckle and is used to drive the movable buckle to extend out of the opening.

[0058] The elastic element 352 can be a spring, rubber pad, or other elastic material. It has a fixed end and a telescopic end. The fixed end is fixedly connected to the inner wall of the receiving cavity 351, and the telescopic end is connected to the movable latch. Under the elastic force of the elastic element 352, the movable latch partially extends out of the opening (initial state), providing a latching point for the locking element 83, and is locked in place. When it is necessary to release the connection between the locking element 83 and the filter head 3, simply apply pressure to the movable latch to retract the spring, causing the movable latch to return to the receiving cavity 351, thus separating from the locking element 83 and unlocking. After releasing the pressure on the movable latch, it automatically returns to its initial state under the action of the elastic element 352.

[0059] Furthermore, the opening includes a first opening and a second opening spaced apart vertically. The movable buckle includes a buckle part 331, a pressing part 332, and a connecting part 333. The buckle part 331 is movably inserted through the first opening, the pressing part 332 is movably inserted through the second opening, and the connecting part 333 is disposed in the receiving cavity 351 and connects the buckle part 331 and the pressing part 332. The telescopic end of the elastic member 352 is connected to the pressing part 332 or the connecting part 333.

[0060] The latching part 331 is used to engage and fix with the locking member 83, the pressing part 332 is used for the user to apply pressing pressure, and the connecting part 333 is disposed in the receiving cavity 351 to connect the latching part 331 and the pressing part 332, realizing the linkage between the pressing part 332 and the latching part 331, and ensuring that the pressing part 332 and the latching part 331 can extend or retract stably and synchronously. The telescopic end of the elastic member 352 is connected to the pressing part 332 or the connecting part 333. Under the pushing action of the elastic member 352, the latching part 331 and the pressing part 332 extend out of the first opening and the second opening respectively, and the latching part 331 serves as the latching action point of the locking member 83. When it is necessary to disengage the connection between the locking member 83 and the filter head 3, simply apply pressure to the pressing part 332 to retract the spring. The pressing part 332 will then retract the connecting part 333 and the latching part 331 together, separating the latching part 331 from the locking member 83 and unlocking it. After releasing the pressure on the pressing part 332, the movable latch will automatically return to its initial state under the action of the elastic member 352. In this embodiment, the latching part 331 and the pressing part 332 are separated, and the latching part 331 is located above the pressing part 332, which can prevent the user's finger from interfering with the locking member 83 when performing the pressing and unlocking operation.

[0061] like Figure 8 As shown, the locking member 83 may include a limiting strip 834. Correspondingly, a limiting part is provided at the end of the filter element head 3 away from the filter element cylinder 1. The limiting part is located between the connector assembly 31 and the locking engagement structure 33 and is used to accommodate the limiting strip 834 or block the limiting strip 834, thereby limiting the limiting strip 834.

[0062] In some embodiments, the limiting part is a slot 38, such as Figure 1 or Figure 2 As shown, the slot 38 extends perpendicularly to the connector and is used to receive the limiting strip 834, thereby limiting the position of the limiting strip 834. Specifically, the locking member 83 has a clearance opening for inserting the filter head 3 and a limiting strip 834 spanning the clearance opening. The slot 38 allows the limiting strip 834 to be inserted, which can prevent the filter head 3 from being over-inserted and facilitates better positioning of the locking member 83.

[0063] The distance between the card slot 38 and the connector assembly 31 should not be too far or too close. (Refer to...) Figure 2The mating ends of the first connector 311 and the second connector 312 are flush. The distance from the side of the slot 38 near the connector to the end of the connector away from the boss is L2, 15mm≤L2≤90mm. In specific applications, L2 can be, but is not limited to, 15mm, 30mm, 50mm, 70mm, and 90mm.

[0064] In some embodiments, the limiting part may be a protruding structure provided on the top of the filter head 3. The protruding structure may contact and limit the limiting strip 834 on the side close to the locking and fitting structure 33, or the protruding structure may contact and limit the limiting strip 834 on the side away from the locking and fitting structure 33.

[0065] This utility model also provides a water treatment device, which includes a filter host and the filter element device mentioned above. The specific structure of the filter element device is as described in the above embodiments. Since this water treatment device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0066] Reference Figure 8 and Figure 9 The filter unit has a docking assembly 8, which includes a female seat 81 and a water flow interface 82 and a locking member 83 connected to the female seat 81. The female seat 81 is located on the side facing the connector. The number of water flow interfaces 82 is the same as the number of connectors. One water flow interface 82 is docked with one connector. The locking member 83 has a first state of being engaged with the locking engagement structure 33 and a second state of being disengaged from the locking engagement structure 33.

[0067] Specifically, the docking assembly 8 is used to connect the filter host and the filter cartridge device. The docking assembly 8 includes a female seat 81, a water flow interface 82 connected to the female seat 81, and a locking member 83. The female seat 81 is located on the side facing the connector assembly 31. The water flow interface 82 is connected to the female seat 81 and faces the docking assembly 8, and the number of water flow interfaces 82 is the same as the number of connectors. One water flow interface 82 is docked with one connector, thereby realizing the connection between the water circuit of the filter host and the water circuit of the filter cartridge device. The locking member 83 is connected to the side of the female seat 81 facing the filter cartridge head 3 and is used to snap and fix it with the locking engagement structure 33 on the filter cartridge head 3. The side docking arrangement of the water flow interface 82 and the connector can reduce the overall longitudinal length of the filter host and the filter cartridge device, making the overall structure of the water treatment device more compact.

[0068] The locking member 83 and the locking engagement structure 33 are used to achieve a stable connection between the filter element device and the filter host. The locking member 83 may include a first cantilever 831, a second cantilever 832, and a third cantilever 833 arranged opposite to each other. The first cantilever 831 and the second cantilever 832 are arranged opposite to each other and connected to the side of the female seat 81 facing the filter head 3. The two ends of the third cantilever 833 are respectively connected to the first cantilever 831 and the second cantilever 832, and are located at the ends of the first cantilever 831 and the second cantilever 832 away from the female seat 81. The first cantilever 831, the second cantilever 832, and the third cantilever 833 together form a clearance opening for the insertion of the filter head 3. The third cantilever 833 is used to snap and fix with the locking engagement structure 33.

[0069] In some embodiments of this utility model, the first cantilever 831 and the second cantilever 832 can be rotatably connected to the female seat 81 so that the third cantilever 833 can rotate to engage with the locking structure 33. Specifically, the female seat 81 has a first connecting seat 811 and a second connecting seat 812 on the side facing the filter head 3. The first connecting seat 811 and the second connecting seat 812 are respectively located on both sides of the water flow interface 82. The first cantilever 831 is rotatably connected to the first connecting seat 811 through a first rotating shaft, and the second cantilever 832 is rotatably connected to the second connecting seat 812 through a second rotating shaft. At this time, the locking member 83 is a rotating clamp. The first cantilever 831 and the second cantilever 832 can drive the third cantilever 833 to rotate. When the third cantilever 833 rotates to the end of the filter head 3 away from the connector assembly 31 and abuts against the locking structure 33 on the filter head 3, the third cantilever 833 will be locked and fixed with the locking structure 33, realizing the connection and fixation between the filter host and the filter device.

[0070] Alternatively, the first cantilever 831 and the second cantilever 832 can be slidably connected to the female seat 81, with the sliding direction of the first cantilever 831 and the second cantilever 832 being axial along the filter cartridge 1, so that the third cantilever 833 can move to engage with the locking structure 33. Specifically, the female seat 81 has a first slide rail and a second slide rail on the side facing the filter head 3. The first slide rail and the second slide rail are respectively located on both sides of the water inlet 82 and extend axially along the filter cartridge 1. The first cantilever 831 is slidably connected to the first slide rail, and the second cantilever 832 is slidably connected to the second slide rail. In this case, the locking member 83 is a sliding clamp, and the first cantilever 831 and the second cantilever 832 can drive the third cantilever 833 to move up and down. When the third cantilever 833 moves to the end of the filter head 3 away from the connector assembly 31 and abuts against the locking structure 33 on the filter head 3, the third cantilever 833 will be locked and fixed with the locking structure 33, realizing the connection and fixation between the filter host and the filter device.

[0071] Reference Figure 8 and Figure 9The locking component 83 also includes a limiting strip 834, which is disposed within the clearance formed by the first cantilever 831, the second cantilever 832, and the third cantilever 833. One end of the limiting strip 834 is connected to the first cantilever 831, and the other end is connected to the second cantilever 832. The limiting strip 834 is used to engage with the slot 38 on the filter head 3 to limit the locking component 83 from over-fitting and to facilitate better positioning of the locking component 83.

[0072] Reference Figure 10 The pipe diameter of each water flow interface 82 is defined as d6, where 7.5mm ≤ d6 ≤ 15.5mm. In practical applications, the pipe diameters of each water flow interface 82 can be the same or different. The inner diameter of the water flow interface 82 is slightly larger than the diameter d5 of the groove 314 on the corresponding connector, and matches the outer diameter of the corresponding connector. Combined with the sealing ring, this ensures a tight connection between the water flow interface 82 and the corresponding connector. The distance between the central axes of adjacent water flow interfaces is defined as L3, where 11mm ≤ L3 ≤ 19mm. The distance between the central axes of adjacent water flow interfaces is equal to the distance between the central axes of adjacent connectors, which helps to align each water flow interface with its corresponding connector and improves assembly accuracy.

[0073] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter cartridge device, characterized in that, The filter cartridge includes a filter element cartridge and a filter element head connected to the end of the filter element cartridge. The filter element head includes a connector assembly, which includes at least two connectors having connector channels. Each of the connectors is arranged side by side along a first direction. The filter element head has a bent channel to communicate with the chamber of the filter element cartridge and the connector channels. The end of the filter head away from the connector assembly is provided with a locking engagement structure, which is used to engage with the locking component of the filter host to prevent the connector assembly from becoming loose relative to the filter host.

2. The filter element device as described in claim 1, characterized in that, The filter cartridge contains a filter element, and an outer cavity is formed between the peripheral sidewall of the filter element and the inner peripheral wall of the filter cartridge. The filter element has a hollow channel along the axial direction. The connector assembly includes a first connector and a second connector arranged side by side. The bending channel includes a first bending channel and a second bending channel. The first bending channel connects the connector channel of the first connector and the outer cavity of the filter element, and the second bending channel connects the connector channel of the second connector and the hollow channel.

3. The filter element device as described in claim 2, characterized in that, The first bending channel includes a first sub-channel and a second sub-channel. The first sub-channel is connected to the connector channel of the first connector and extends along the length direction of the first connector. The second sub-channel is perpendicular to the first sub-channel, and one end of the second sub-channel is connected to the first sub-channel, while the other end is connected to the outer cavity of the filter element. The second bending channel includes a third sub-channel and a fourth sub-channel. The third sub-channel is connected to the connector channel of the second connector and extends along the length direction of the second connector. The fourth sub-channel is perpendicular to the third sub-channel, and one end of the fourth sub-channel is connected to the third sub-channel, while the other end is connected to the hollow channel.

4. The filter element device as described in claim 3, characterized in that, The filter head also includes a cover and a boss. The cover is sleeved on or inserted into the filter cylinder. The boss is located at the end of the cover away from the filter cylinder. The first connector and the second connector are connected side by side to one side of the boss. The protrusion includes a side wall and a top wall. The side wall is connected to the cover and forms a cavity. The top wall is connected to the end of the side wall away from the cover and covers the cavity. The first sub-channel and the third sub-channel are provided on the top wall. A sleeve protrudes from the side of the top wall facing the filter element. The sleeve forms the fourth sub-channel. The sleeve and the side wall form the second sub-channel.

5. The filter element device as described in claim 4, characterized in that, The sleeve is provided with reinforcing ribs on its periphery. The reinforcing ribs are arranged circumferentially with the sleeve as the center. One end of the reinforcing rib is connected to the sleeve, and the other end of the reinforcing rib is connected to the side wall. The reinforcing ribs divide the second sub-channel into several cavities. Adjacent cavities are connected. One cavity is connected to the outer cavity of the filter element. And / or, the filter element device further includes an adapter disposed inside the filter element cylinder and located between the filter element and the filter element head, the adapter being used to guide water from the second sub-channel to the outer cavity of the filter element and to guide water from the hollow channel to the fourth sub-channel.

6. The filter element device as described in claim 5, characterized in that, The filter element device further includes an adapter, which includes an end plate and a central tube. The end plate is disposed inside the filter element cylinder and covers the filter element in the axial direction. A first chamber is formed between the end plate and the filter element head. The outer ring of the end plate is provided with a water inlet to connect the first chamber and the outer cavity of the filter element. The central tube is located in the first chamber and is connected to the end plate and connects the hollow channel and the sleeve. The central tube is provided with ribs on its periphery. The ribs are arranged circumferentially around the central tube. The ribs have a first end facing the filter head and a second end connected to the end plate. The width of the ribs gradually increases from the first end to the second end.

7. The filter element device as described in claim 4, characterized in that, The boss has a first sidewall and a second sidewall that are arranged opposite to each other. The first sidewall and the second sidewall are planar and parallel to the first connector and the second connector. The distance between the first sidewall and the second sidewall is L1, where L1 ≥ 10 mm. Alternatively, the height of the boss is h, where h ≥ 10 mm; Alternatively, both the first connector and the second connector are tubular structures, and the inner diameters of the first connector and the second connector are defined as d2, where 2mm≤d2≤8mm. Alternatively, the distance between the central axis of the first connector and the central axis of the second connector can be defined as d3, where 11mm ≤ d3 ≤ 19mm.

8. The filter element device according to any one of claims 1 to 7, characterized in that, The locking mechanism is a fixed snap-fit ​​structure, which is used to engage and fix with the locking component of the filter host. Alternatively, the locking mechanism is a movable buckle, which has a first state of extending from the filter head and a second state of being received within the filter head. When the movable buckle is in the first state, it can be engaged and fixed with the locking component of the filter host.

9. The filter element device according to any one of claims 1 to 7, characterized in that, The locking component includes a limiting strip, and a limiting part is provided at the end of the filter head away from the filter cartridge. The limiting part is located between the connector assembly and the locking engagement structure and is used to accommodate the limiting strip or block the limiting strip, thereby limiting the limiting strip. Alternatively, the locking element includes a limiting strip, and a limiting portion is provided at the end of the filter head away from the filter cartridge. The limiting portion is a slot, which is located between the connector assembly and the locking mating structure and extends perpendicularly to the connector, for receiving the limiting strip and thus limiting the limiting strip. The mating ends of each connector are flush, and the distance between the side of the slot near the connector and the mating end of the connector is L2, where 15mm≤L2≤90mm.

10. A water treatment device, characterized in that, The filter includes a filter host and a filter cartridge device as described in any one of claims 1 to 9. The filter host has a docking assembly, the docking assembly including a female seat and a water inlet and a locking member connected to the female seat. The female seat is located on the side facing the connector. The number of water inlets is the same as the number of connectors. One water inlet is docked with one connector. The locking member has a first state of being engaged with the locking engagement structure and a second state of being disengaged from the locking engagement structure.

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