Filter element device and water purification equipment

Abstract

The utility model discloses a filter element device and water purification equipment, and relates to the technical field of water purification, the filter element device comprises a shell, a filter assembly, a mounting piece and a valve body assembly, and a cavity is formed in the shell; the shell is provided with a first water inlet hole and a first water outlet hole; a first limiting part is arranged at the orifice of the first water inlet hole, and a second limiting part is arranged at the orifice of the first water outlet hole; the filtering assembly and the mounting piece are arranged in the cavity; the mounting piece is connected with one end of the filtering assembly; a first mounting groove is formed in the mounting piece in the direction facing the first water inlet hole, and a second mounting groove is formed in the mounting piece in the direction facing the first water outlet hole; a first hollow structure is arranged on the side, facing the filtering assembly, of the first mounting groove, and a first hollow structure is arranged on the side, facing the filtering assembly, of the second mounting groove; the valve body assembly comprises a first water stop valve and a second water stop valve, the first water stop valve is arranged in the first mounting groove, and one end of the first water stop valve abuts against the first limiting part; the second water stop valve is arranged in the second mounting groove, and one end of the second water stop valve abuts against the second limiting part.

Description

Technical Field

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

[0002] Currently, some filter cartridges are equipped with a stop valve. After the stop valve is installed inside the filter cartridge, an ultrasonic welding plate is needed to seal the cartridge. However, ultrasonic welding of the plate may reduce the pressure resistance of the filter cartridge and increase the risk of leakage. Furthermore, in actual production, ultrasonic welding may cause weld damage and burrs on the filter cartridge, thus affecting the production quality. Therefore, existing filter cartridge devices with stop valves suffer from low pressure resistance and low yield rates. Utility Model Content

[0003] The main purpose of this application is to propose a filter cartridge device and water purification equipment, which aims to solve the problems of low pressure bearing capacity and low production yield of filter cartridge devices equipped with water stop valves.

[0004] To achieve the above objectives, the filter element device proposed in this application includes:

[0005] The housing has an internal cavity; the housing has a first water inlet and a first water outlet; a first limiting part is provided at the opening of the first water inlet, and a second limiting part is provided at the opening of the first water outlet;

[0006] A filter assembly, wherein the filter assembly is disposed within the cavity;

[0007] The mounting component is disposed within the cavity; the mounting component is connected to one end of the filter assembly; the mounting component has a first mounting groove facing the first water inlet, the first mounting groove has a first hollow structure on the side facing the filter assembly, the mounting component has a second mounting groove facing the first water outlet, and the second mounting groove has a second hollow structure on the side facing the filter assembly.

[0008] The valve body assembly includes a first stop valve and a second stop valve. The first stop valve is disposed in the first mounting groove, and the end of the first stop valve away from the first hollow structure abuts against the first limiting part. The second stop valve is disposed in the second mounting groove, and the end of the second stop valve away from the second hollow structure abuts against the second limiting part.

[0009] In one embodiment, the mounting member has a first extension section extending toward the first water inlet, and a first mounting groove is formed in the first extension section; the mounting member has a second extension section extending toward the first water outlet, and a second mounting groove is formed in the second extension section; a slot structure is provided on one side of the mounting member with the first extension section and the second extension section, and an extension structure extending toward the slot structure is provided on the inner wall of the housing, the extension structure being engaged with the slot structure to achieve a fit.

[0010] In one embodiment, the filtration assembly includes a first filter element and a first filter element cover. One end of the first filter element is connected to the first filter element cover, and the first filter element cover is connected to one end of the mounting member away from the first extension section and / or the second extension section. A first fluid channel is formed between the outer side of the first filter element and the inner wall of the housing. The first fluid channel communicates with the first mounting groove. A second fluid channel is formed in the middle of the first filter element, and the second fluid channel communicates with the second mounting groove.

[0011] In one embodiment, the housing is provided with a second water inlet and a second water outlet; a third limiting portion is provided at the opening of the second water inlet, and a fourth limiting portion is provided at the opening of the second water outlet; the mounting member is provided with a third extension section extending toward the second water inlet, a third mounting groove is formed in the third extension section, and a third hollow structure is provided on the side of the third mounting groove facing the filter assembly; the mounting member is provided with a fourth extension section extending toward the second water outlet, a fourth mounting groove is formed in the fourth extension section, and a fourth hollow structure is provided on the side of the fourth mounting groove facing the filter assembly; the valve body assembly further includes a third stop valve and a fourth stop valve, the third stop valve is disposed in the third mounting groove, one end of the third stop valve abuts against the third limiting portion; the fourth stop valve is disposed in the fourth mounting groove, one end of the fourth stop valve abuts against the fourth limiting portion; and / or,

[0012] The housing includes a first filter bottle and a second end cap. The first filter bottle has a cavity inside, and the cavity has an opening at one end away from the first water inlet and / or the first water outlet. The second end cap is connected to the end of the first filter bottle with the opening.

[0013] In one embodiment, the filtration assembly further includes a second filter bottle, a second end cap, a second filter element, and a second filter element cap. One end of the second filter bottle is connected to the second end cap, and one end of the second filter element is connected to the second filter element cap. The second filter element and the second filter element cap are disposed inside the second filter bottle. A third fluid channel is formed between the outer side of the second filter element and the inner wall of the second filter bottle, and the third fluid channel communicates with the third mounting groove. A fourth fluid channel is formed in the middle of the second filter element, and the fourth fluid channel communicates with the fourth mounting groove.

[0014] In one embodiment, the mounting member has a groove surrounding one end facing the filter assembly, and one end of the filter assembly is engaged in the groove; and / or,

[0015] The mounting component is provided with a fifth abutment portion around its outer periphery, and the fifth abutment portion is sealed to the inner wall of the cavity.

[0016] In one embodiment, the bottom wall of the groove is provided with a fourth extension section and a fifth extension section. The fourth extension section is sealed to the second end cap, and the fifth extension section is sealed to the second filter element cap. The side wall of the groove is sealed to the first filter element cap. A fifth fluid channel is formed between the fourth extension section and the inner wall of the groove. The fifth fluid channel is connected to the second fluid channel and the second mounting groove, respectively. A sixth fluid channel is formed between the fourth extension section and the fifth extension section. The sixth fluid channel is connected to the third fluid channel and the third mounting groove, respectively. A seventh fluid channel is formed in the middle of the fifth extension section. The seventh fluid channel is connected to the fourth fluid channel and the fourth mounting groove, respectively.

[0017] In one embodiment, the slot structure includes a first slot, a second slot, and a third slot. The first slot is located between the first extension segment and the second extension segment, the second slot is located between the second extension segment and the third extension segment, and the third slot is located between the third extension segment and the fourth extension segment. The extension structure includes a seventh extension segment, an eighth extension segment, and a ninth extension segment. The seventh extension segment is inserted into the first slot, the eighth extension segment is inserted into the second slot, and the ninth extension segment is inserted into the third slot.

[0018] In one embodiment, the first slot is positioned corresponding to the side wall of the groove, the second slot is positioned corresponding to the fourth extension, and the third slot is positioned corresponding to the fifth extension.

[0019] This application also proposes a water purification device, including the filter cartridge device as described above.

[0020] The technical solution of this application arranges the filter assembly, mounting component, and valve body assembly within a cavity inside the housing, and provides a first water inlet and a first water outlet on the housing for water flow. Firstly, the mounting component is connected to one end of the filter assembly. The mounting component has a first mounting groove facing the first water inlet, and the side of the first mounting groove facing the filter assembly has a first perforated structure. This perforated structure allows water to flow through the first mounting groove and into the filter assembly, achieving filtration. Secondly, the mounting component has a second mounting groove facing the first water outlet, and the side of the second mounting groove facing the filter assembly has a... The second perforated structure allows water to flow through the second mounting groove and then to the first outlet. A first limiting part is installed at the opening of the first inlet, and a second limiting part is installed at the opening of the first outlet. A first stop valve is placed in the first mounting groove, with its end away from the first perforated structure abutting against the first limiting part, thus confining the first stop valve within the first mounting groove. Similarly, a second stop valve is placed in the second mounting groove, with its end away from the second perforated structure abutting against the second limiting part, thus confining the second stop valve within the second mounting groove. When the filter cartridge is in operation, the fluid to be filtered enters the filter cartridge through the first inlet, then continues through the first mounting groove, passes through the first perforated structure, and enters the filter assembly to achieve filtration and generate the first filtered fluid. The first stop valve allows the fluid to flow in one direction. The first filtered fluid then continues through the second perforated structure and flows out to the second mounting groove, where the second stop valve allows the first filtered fluid to flow in one direction. Finally, the first filtered fluid is output through the first outlet. This filter element device uses a mounting component that works in conjunction with the first and second limiting parts of the housing to limit the installation of the first and second stop valves. This avoids the need to use ultrasonic welding plates to install the first and second stop valves, thereby preventing welding defects in the filter element device, improving product consistency and reliability, and increasing the production yield. At the same time, it enhances the structural strength of the entire filter element device, enabling it to withstand higher water pressure. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the filter element device provided in this application;

[0023] Figure 2 This is a partial structural schematic diagram of an embodiment of the filter element device provided in this application;

[0024] Figure 3 An exploded structural diagram of an embodiment of the filter element device provided in this application;

[0025] Figure 4 A schematic diagram of the structure of the first filter bottle of an embodiment of the filter cartridge device provided in this application;

[0026] Figure 5 A schematic diagram of the filter assembly and mounting components of an embodiment of the filter cartridge device provided in this application;

[0027] Figure 6 A cross-sectional structural schematic diagram of the mounting component of an embodiment of the filter element device provided in this application;

[0028] Figure 7 A three-dimensional cross-sectional structural diagram of the mounting component of an embodiment of the filter element device provided in this application.

[0029] Explanation of icon numbers:

[0030] 1. Shell; 11. Cavity; 12. First water inlet; 121. First limiting part; 13. First water outlet; 131. Second limiting part; 14. Extension structure; 141. Seventh extension section; 142. Eighth extension section; 143. Ninth extension section; 15. Second water inlet; 151. Third limiting part; 16. Second water outlet; 161. Fourth limiting part; 17. First filter bottle; 18. First end cap; 2. Filter assembly; 21. First filter element; 22. First filter element cover; 23. Second filter bottle; 24. Second end cap; 25. Second filter element; 26. Second filter element cover; 3. Mounting component; 31. First extension section; 311. First mounting groove; 312. First hollow structure; 32. Second extension section; 32 1. Second mounting groove; 322. Second hollow structure; 33. Slot structure; 331. First slot; 332. Second slot; 333. Third slot; 34. Third extension section; 341. Third mounting groove; 35. Fourth extension section; 351. Fourth mounting groove; 36. Fifth extension section; 37. Sixth extension section; 38. Fifth abutment part; 39. Groove; 4. Valve body assembly; 41. First stop valve; 42. Second stop valve; 43. Third stop valve; 44. Fourth stop valve; 101. First fluid channel; 102. Second fluid channel; 103. Third fluid channel; 104. Fourth fluid channel; 105. Fifth fluid channel; 106. Sixth fluid channel; 107. Seventh fluid channel.

[0031] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0035] Currently, some filter cartridges are equipped with a stop valve. After the stop valve is installed inside the filter cartridge, an ultrasonic welding plate is needed to seal the cartridge. However, ultrasonic welding of the plate may reduce the pressure resistance of the filter cartridge and increase the risk of leakage. Furthermore, in actual production, ultrasonic welding may cause weld damage and burrs on the filter cartridge, thus affecting the production quality. Therefore, existing filter cartridge devices with stop valves suffer from low pressure resistance and low yield rates.

[0036] To address the aforementioned problems, this application proposes a filter element device.

[0037] Please see Figures 1 to 7In one embodiment of this application, the filter element device includes a housing 1, a filter assembly 2, a mounting component 3, and a valve body assembly 4. The housing 1 has an internal cavity 11; the housing 1 has a first water inlet 12 and a first water outlet 13; a first limiting portion 121 is provided at the opening of the first water inlet 12, and a second limiting portion 131 is provided at the opening of the first water outlet 13; the filter assembly 2 is disposed within the cavity 11; the mounting component 3 is disposed within the cavity 11; the mounting component 3 is connected to one end of the filter assembly 2; the mounting component 3 has a first mounting groove 311 facing the first water inlet 12. The groove 311 has a first hollow structure 312 on the side facing the filter assembly 2, and the mounting part 3 has a second mounting groove 321 in the direction of the first water outlet 13. The second mounting groove 321 has a second hollow structure 322 on the side facing the filter assembly 2. The valve body assembly 4 includes a first stop valve 41 and a second stop valve 42. The first stop valve 41 is located in the first mounting groove 311, and one end of the first stop valve 41 abuts against the first limiting part 121. The second stop valve 42 is located in the second mounting groove 321, and one end of the second stop valve 42 abuts against the second limiting part 131.

[0038] In the above structure, the filter assembly 2, the mounting component 3, and the valve body assembly 4 are disposed within the cavity 11 inside the housing 1, and a first water inlet 12 and a first water outlet 13 are provided on the housing 1 for water to flow in and out. Firstly, the mounting component 3 is connected to one end of the filter assembly 2. Simultaneously, the mounting component 3 has a first mounting groove 311 facing the first water inlet 12, and a first perforated structure 312 on the side of the first mounting groove 311 facing the filter assembly 2. The first perforated structure 312 allows water to flow through the first mounting groove 311 and towards the filter assembly 2, thus achieving filtration. Secondly, the mounting component 3 has a second mounting groove 321 facing the first water outlet 13, and a second perforated structure 32 on the side of the second mounting groove 321 facing the filter assembly 2. 2. The water flows through the second mounting groove 321 and then to the first outlet hole 13 using the second hollow structure 322; finally, a first limiting part 121 is set at the opening of the first inlet hole 12, and a second limiting part 131 is set at the opening of the first outlet hole 13; by placing the first stop valve 41 in the first mounting groove 311, the end of the first stop valve 41 away from the first hollow structure 312 abuts against the first limiting part 121, thereby restricting the first stop valve 41 within the first mounting groove 311; and by placing the second stop valve 42 in the second mounting groove 321, the end of the second stop valve 42 away from the second hollow structure 322 abuts against the second limiting part 131, thereby restricting the second stop valve 42 within the second mounting groove 321. When the filter cartridge is in operation, the fluid to be filtered enters the filter cartridge through the first inlet hole 12, then continues through the first mounting groove 311, and enters the filter assembly 2 through the first perforated structure 312 to achieve filtration and generate the first filtered fluid. The first stop valve 41 is used to enable unidirectional flow of the fluid to be filtered. Subsequently, the first filtered fluid continues through the second perforated structure 322 and flows out to the second mounting groove 321, where the second stop valve 42 enables unidirectional flow of the first filtered fluid. Finally, the first filtered fluid is output through the first outlet hole 13. This filter cartridge uses the mounting part 3 in conjunction with the first limiting part 121 and the second limiting part 131 of the housing 1 to limit the installation of the first stop valve 41 and the second stop valve 42, avoiding the use of ultrasonic welding pressure plates to install the first stop valve 41 and the second stop valve 42. This avoids welding defects in the filter cartridge, improves product consistency and reliability, and achieves the goal of increasing the production yield. At the same time, it can enhance the structural strength of the entire filter cartridge, enabling it to withstand higher water pressure.

[0039] In one embodiment, the mounting member 3 is provided with a first extension section 31 extending toward the first water inlet hole 12, and a first mounting groove 311 is formed in the first extension section 31; the mounting member 3 is provided with a second extension section 32 extending toward the first water outlet hole 13, and a second mounting groove 321 is formed in the second extension section 32; a slot structure 33 is provided on one side of the mounting member 3 where the first extension section 31 and the second extension section 32 are provided, and an extension structure 14 extending toward the slot structure 33 is provided on the inner wall of the housing 1, and the extension structure 14 is engaged with the slot structure 33 to achieve a fit.

[0040] In the above structure, the mounting component 3 has a first extension section 31 extending towards the first water inlet 12, and the interior of the first extension section 31 forms a first mounting groove 311 for installing the first stop valve 41. The mounting component 3 also has a second extension section 32 extending towards the first water outlet 13, and the interior of the second extension section 32 forms a second mounting groove 321 for installing the second stop valve 42. In addition, a slot structure 33 is provided on one side of the first extension section 31 and the second extension section 32 of the mounting component 3, and an extension structure 14 is provided on the inner wall of the housing 1. The extension structure 14 is used to engage with the slot structure 33 to achieve a snap-fit ​​connection, so that the mounting component 3 is connected to the housing 1 to ensure the stability of the mounting component 3 within the housing 1. The cooperation between the slot structure 33 and the extension structure 14 makes the installation and disassembly of the mounting component 3 simpler, avoiding the use of welding or other complex fixing methods, improving production efficiency, and facilitating the maintenance and replacement of the mounting component 3.

[0041] In one embodiment, a fifth abutment portion 38 is provided around the outer periphery of the mounting member 3, and the fifth abutment portion 38 is sealed to the inner wall of the cavity 11.

[0042] In the above structure, by providing a fifth abutment portion 38 on the outer periphery of the mounting member 3 and using the fifth abutment portion 38 to abut against the inner wall of the cavity 11, the fluid can only flow through the internal flow channels of the mounting member 3 (such as the flow channels formed by the first mounting groove 311, the first hollow structure 312, the second mounting groove 321, and the second hollow structure 322), thus avoiding the mixing of fluids between different flow channels.

[0043] In one embodiment, the filter assembly 2 includes a first filter element 21 and a first filter element cover 22. One end of the first filter element 21 is connected to the first filter element cover 22, and the first filter element cover 22 is connected to the end of the mounting member 3 away from the first extension section 31 and / or the second extension section 32. A first fluid channel 101 is formed between the outer side of the first filter element 21 and the inner wall of the housing 1. The first fluid channel 101 communicates with the first mounting groove 311. A second fluid channel 102 is formed in the middle of the first filter element 21, and the second fluid channel 102 communicates with the second mounting groove 321.

[0044] In the above structure, the first filter element cover 22 is connected to the end of the mounting component 3 away from the first extension section 31 and / or the second extension section 32. The first filter element cover 22 can be used to protect the first filter element 21, and at the same time, the first filter element cover 22 can be used to connect with the mounting component 3 to ensure the installation stability of the filter assembly 2. In addition, a first fluid channel 101 is formed between the outer side of the first filter element 21 and the inner wall of the housing 1. Since the first fluid channel 101 is connected to the first mounting groove 311, the fluid to be filtered can enter the first fluid channel 101 through the first mounting groove 311 and then flow into the first filter element 21 for filtration. A second fluid channel 102 is formed in the middle of the first filter element 21. The second fluid channel 102 serves as the outlet channel for the first filtered fluid after filtration. Since the second fluid channel 102 is connected to the second mounting groove 321, the first filtered fluid passes through the second hollow structure 322 and is finally output through the first water outlet 13.

[0045] In one embodiment, the housing 1 is provided with a second water inlet 15 and a second water outlet 16; a third limiting part 151 is provided at the opening of the second water inlet 15, and a fourth limiting part 161 is provided at the opening of the second water outlet 16; the mounting member 3 is provided with a third extension section 34 extending toward the second water inlet 15, a third mounting groove 341 is formed in the third extension section 34, and a third hollow structure is provided on the side of the third mounting groove 341 facing the filter assembly 2; the mounting member 3 is provided with an extension section extending toward the second water outlet 16. The fourth extension section 35 has a fourth mounting groove 351 formed therein, and the fourth mounting groove 351 has a fourth hollow structure on the side facing the filter assembly 2; the valve body assembly 4 also includes a third stop valve 43 and a fourth stop valve 44. The third stop valve 43 is located in the third mounting groove 341, and one end of the third stop valve 43 abuts against the third limiting part 151; the fourth stop valve 44 is located in the fourth mounting groove 351, and one end of the fourth stop valve 44 abuts against the fourth limiting part 161.

[0046] In the above structure, in addition to the first water inlet 12 and the first water outlet 13, the housing 1 also has a second water inlet 15 and a second water outlet 16 for water to flow in and out; the opening of the second water inlet 15 is provided with a third limiting part 151, which is used to restrict the movement of the third stop valve 43; the opening of the second water outlet 16 is provided with a fourth limiting part 161, which is used to restrict the movement of the fourth stop valve 44; the mounting member 3 has a third extension section 34 extending toward the second water inlet 15, and the interior of the third extension section 34 forms a third mounting groove 341; the side of the third mounting groove 341 facing the filter assembly 2 has a third hollow structure, which is used for water to flow through; the mounting member 3 has a fourth extension section 35 extending toward the second water outlet 16, and the interior of the fourth extension section 35 forms a third mounting groove 341. A fourth mounting groove 351 is provided, and a fourth hollow structure is provided on the side of the fourth mounting groove 351 facing the filter assembly 2. The fourth hollow structure is used for water flow. A third stop valve 43 is provided in the third mounting groove 341, and one end of the third stop valve 43 abuts against the third limiting part 151 to ensure that the third stop valve 43 is confined in the third mounting groove 341. In order to improve the installation stability of the third stop valve 43, both ends of the third stop valve 43 abut against the third hollow structure and the third limiting part 151 respectively. A fourth stop valve 44 is provided in the fourth mounting groove 351, and one end of the fourth stop valve 44 abuts against the fourth limiting part 161 to ensure that the fourth stop valve 44 is confined in the fourth mounting groove 351. In order to improve the installation stability of the fourth stop valve 44, both ends of the fourth stop valve 44 abut against the fourth hollow structure and the fourth limiting part 161 respectively. Specifically, the fluid to be filtered or the first filtered fluid enters the filter element through the second inlet 15. Then, the fluid to be filtered or the first filtered fluid continues to pass through the third mounting groove 341, where the third stop valve 43 ensures unidirectional flow. Subsequently, the fluid to be filtered or the first filtered fluid enters the filter assembly 2 through the third perforated structure for filtration, generating a second filtered fluid. This second filtered fluid then flows out through the fourth perforated structure to the fourth mounting groove 351, where the fourth stop valve 44 ensures unidirectional flow. Finally, the second filtered fluid is output through the second outlet 16. By adding an additional second inlet 15 and second outlet 16, along with the matching third and fourth stop valves 43 and 44, the filter element device can improve filtration efficiency and processing capacity, enabling it to adapt to more complex water treatment needs. It should be noted that when the first filtered fluid needs to undergo secondary filtration using the filter assembly 2, the first outlet 13 and the second outlet 16 are connected by a connector, which can be a connecting pipe or a joint.

[0047] In one embodiment, the filter assembly 2 further includes a second filter bottle 23, a second filter element 25, and a second filter element cover 26. One end of the second filter element 25 is connected to the second filter element cover 26, and the second filter element 25 and the second filter element cover 26 are disposed inside the second filter bottle 23. A third fluid channel 103 is formed between the outer side of the second filter element 25 and the inner wall of the second filter bottle 23, and the third fluid channel 103 communicates with the third mounting groove 341. A fourth fluid channel 104 is formed in the middle of the second filter element 25, and the fourth fluid channel 104 communicates with the fourth mounting groove 351.

[0048] In the above structure, the second filter element 25 is another filter unit in the filter assembly 2. One end of the second filter element 25 is connected to the second filter element cover 26, and the second filter element 25 and the second filter element cover 26 are disposed together in the second filter bottle 23. The inner side of the first filter element 21 and the outer side of the second filter bottle 23 form a second fluid channel 102, and the outer side of the second filter element 25 and the inner wall of the second filter bottle 23 form a third fluid channel 103. The third fluid channel 103 communicates with the third mounting groove 341. The first filtered fluid generated after the fluid passes through the first filter element 21 can pass through... The second inlet 15 leads into the third mounting groove 341, and after passing through the third mounting groove 341, it flows into the second filter element 25 through the third fluid channel 103 for secondary filtration. A fourth fluid channel 104 is formed in the middle of the second filter element 25, which is connected to the fourth mounting groove 351. The second filtered fluid produced after filtration by the second filter element 25 flows out through the fourth fluid channel 104 and is finally discharged through the second outlet 16. Therefore, by adding the second filter element 25 and the corresponding fluid channel, multi-stage filtration can be achieved in conjunction with the first filter element 21, improving the filtration effect and water quality. Among them, the first filter element 21 is a pre-filter element, and the second filter element 25 is a post-filter element.

[0049] In one embodiment, the housing 1 includes a first filter bottle 17 and a second end cap 24. The first filter bottle 17 has a cavity 11 inside, and the cavity 11 has an opening at one end away from the first water inlet hole 12 and / or the first water outlet hole 13. The second end cap 24 is connected to the end of the first filter bottle 17 with the opening.

[0050] In the above structure, the second end cap 24 is connected to the open end of the first filter bottle 17. The connection method can be threaded connection, snap-fit ​​connection, welding connection, or other forms of fixed connection to ensure that the second end cap 24 can seal the opening of the cavity 11 and prevent fluid leakage. In addition, the connection between the opening of the cavity 11 and the second end cap 24 facilitates the installation of the first filter element 21, the second filter bottle 23, the second filter element 25, and the second filter element cap 26 into the first filter bottle 17 during assembly, and then the second end cap 24 is connected to the first filter bottle 17, which can improve production efficiency; at the same time, it reduces the connection area of ​​the filter element device, thereby improving the pressure resistance of the filter element device.

[0051] In one embodiment, a groove 39 is provided around one end of the mounting member 3 facing the filter assembly 2, and one end of the filter assembly 2 is inserted into the groove 39.

[0052] In the above structure, a groove 39 is provided around the end of the mounting member 3 facing the filter assembly 2. The groove 39 is used to fix the filter assembly 2 and ensure that the filter assembly 2 is stably positioned on the mounting member 3. Specifically, one end of the filter assembly 2 can be inserted into the groove 39 of the mounting member 3. The end of the filter assembly 2 should match the shape of the groove 39 so that the filter assembly 2 can be tightly fixed on the mounting member 3. In addition, an extension can be provided around the opening of the groove 39. The extension abuts against the outer periphery of the first filter element cover 22 to improve the connection strength between the mounting member 3 and the filter assembly 2.

[0053] In one embodiment, the bottom wall of the groove 39 is provided with a fifth extension 36 and a sixth extension 37. The fifth extension 36 is sealed to the second end cap 24, and the sixth extension 37 is sealed to the second filter element cap 26. The inner wall of the groove 39 is sealed to the first filter element cap 22. A fifth fluid channel 105 is formed between the fifth extension 36 and the inner wall of the groove 39. The fifth fluid channel 105 is connected to the second fluid channel 102 and the second mounting groove 321. A sixth fluid channel 106 is formed between the fifth extension 36 and the sixth extension 37. The sixth fluid channel 106 is connected to the third fluid channel 103 and the third mounting groove 341. A seventh fluid channel 107 is formed in the middle of the sixth extension 37. The seventh fluid channel 107 is connected to the fourth fluid channel 104 and the fourth mounting groove 351.

[0054] In the above structure, the bottom wall of the groove 39 is provided with a fifth extension section 36, which is sealed to the first end cap 18. A fifth fluid channel 105 is formed between the fifth extension section 36 and the inner wall of the groove 39. The fifth fluid channel 105 is connected to the second fluid channel 102 and the second mounting groove 321 respectively. After passing through the first mounting groove 311 and the first hollow structure 312, the fluid directly enters the first fluid channel 101 for filtration. After being filtered by the first filter element 21, the first filtered fluid is generated. The first filtered fluid passes through the second fluid channel 102, then through the fifth fluid channel 105, and then through the first hollow structure 312 into the second mounting groove 321, and is then output through the first water outlet 13. The bottom wall of the groove 39 is also provided with a sixth extension section 37, which is sealed to the second filter element cap 26. A sixth fluid channel 106 is formed between the fifth extension section 36 and the sixth extension section 37. The sixth fluid channel 106 connects the third fluid channel 103 and the third mounting groove 341. The first filtered fluid passes through the third mounting groove 341 and the third perforated structure, then through the sixth fluid channel 106, and finally into the third fluid channel 103 for filtration. After passing through the second filter element 25, it produces the second filtered fluid. A seventh fluid channel 107 is formed in the middle of the sixth extension section 37, connecting the fourth fluid channel 104 and the fourth mounting groove 351. The second filtered fluid passes through the fourth fluid channel 104, then through the seventh fluid channel 107, and finally through the fourth perforated structure into the fourth mounting groove 351, before being output through the second outlet hole 16. It should be noted that the above-mentioned sealing connection can be achieved through adhesive bonding or by using a sealing ring.

[0055] In one embodiment, the slot structure 33 includes a first slot 331, a second slot 332, and a third slot 333. The first slot 331 is located between the first extension segment 31 and the second extension segment 32. The second slot 332 is located between the second extension segment 32 and the third extension segment 34. The third slot 333 is located between the third extension segment 34 and the fifth extension segment 36. The extension structure 14 includes a seventh extension segment 141, an eighth extension segment 142, and a ninth extension segment 143. The seventh extension segment 141 is inserted into the first slot 331, the eighth extension segment 142 is inserted into the second slot 332, and the ninth extension segment 143 is inserted into the third slot 333.

[0056] In the above structure, the mechanical connection between the housing 1 and the mounting component 3 is achieved by inserting the extension structure 14 of the housing 1 into the slot structure 33 of the mounting component 3. This ensures a stable connection between the mounting component 3 and the housing 1 under fluid pressure or other external forces, reducing displacement of the mounting component 3 due to vibration or pressure changes. The seventh extension segment 141 is inserted into the first slot 331, the eighth extension segment 142 is inserted into the second slot 332, and the ninth extension segment 143 is inserted into the third slot 333. This simple structure enables an effective connection between the mounting component 3 and the housing 1, making installation and disassembly simple and quick, and facilitating maintenance and replacement. Simultaneously, it avoids dispersing the forces of the extension structure 14 and the mounting component 14, preventing stress concentration.

[0057] In one embodiment, the first slot 331 is positioned corresponding to the side wall of the groove 39, the second slot 332 is positioned corresponding to the fifth extension 36, and the third slot 333 is positioned corresponding to the sixth extension 37.

[0058] In the above structure, the first slot 331 is positioned corresponding to the side wall of the groove 39, and receives the seventh extension segment 141 of the housing 1 to achieve a connection between the two; the second slot 332 is positioned corresponding to the fifth extension segment 36, and receives the eighth extension segment 142 of the housing 1 to achieve a connection between the two; the third slot 333 is positioned corresponding to the sixth extension segment 37, and receives the ninth extension segment 143 of the housing 1 to achieve a connection between the two. The corresponding arrangement of the slots and extension segments allows for precise fitting, improves the stability of the connection, and makes the overall structure of the mounting component 3 more compact.

[0059] The technical solution of this application involves placing the filter assembly 2, the mounting component 3, and the valve body assembly 4 inside the cavity 11 of the housing 1, and providing a first water inlet 12 and a first water outlet 13 on the housing 1 for water flow. Firstly, the mounting component 3 is connected to one end of the filter assembly 2. Simultaneously, the mounting component 3 has a first mounting groove 311 facing the first water inlet 12, and a first perforated structure 312 on the side of the first mounting groove 311 facing the filter assembly 2. The first perforated structure 312 allows water to flow through the first mounting groove 311 and into the filter assembly 2, achieving filtration. Secondly, the mounting component 3 has a second mounting groove 321 facing the first water outlet 13, and a second perforated structure 312 on the side of the second mounting groove 321 facing the filter assembly 2. 22. Water flows through the second mounting groove 321 and then to the first outlet hole 13 using the second hollow structure 322. Finally, a first limiting part 121 is provided at the opening of the first inlet hole 12, and a second limiting part 131 is provided at the opening of the first outlet hole 13. By placing the first stop valve 41 in the first mounting groove 311, the end of the first stop valve 41 away from the first hollow structure 312 abuts against the first limiting part 121, thereby restricting the first stop valve 41 within the first mounting groove 311. And by placing the second stop valve 42 in the second mounting groove 321, the end of the second stop valve 42 away from the second hollow structure 322 abuts against the second limiting part 131, thereby restricting the second stop valve 42 within the second mounting groove 321. When the filter cartridge is in operation, the fluid to be filtered enters the filter cartridge through the first inlet hole 12, then continues through the first mounting groove 311, and enters the filter assembly 2 through the first perforated structure 312 to achieve filtration and generate the first filtered fluid. The first stop valve 41 is used to enable unidirectional flow of the fluid to be filtered. Subsequently, the first filtered fluid continues through the second perforated structure 322 and flows out to the second mounting groove 321, where the second stop valve 42 enables unidirectional flow of the first filtered fluid. Finally, the first filtered fluid is output through the first outlet hole 13. This filter cartridge uses the mounting part 3 in conjunction with the first limiting part 121 and the second limiting part 131 of the housing 1 to limit the installation of the first stop valve 41 and the second stop valve 42, avoiding the use of ultrasonic welding pressure plates to install the first stop valve 41 and the second stop valve 42. This avoids welding defects in the filter cartridge, improves product consistency and reliability, and achieves the goal of increasing the production yield. At the same time, it can enhance the structural strength of the entire filter cartridge, enabling it to withstand higher water pressure.

[0060] This application also proposes a water purification device, which includes a filter element device. The specific structure of the filter element device is as described in the above embodiments. Since this water purification 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.

[0061] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A filter cartridge device, characterized in that, include: The housing has an internal cavity; the housing has a first water inlet and a first water outlet; a first limiting part is provided at the opening of the first water inlet, and a second limiting part is provided at the opening of the first water outlet; A filter assembly, wherein the filter assembly is disposed within the cavity; The mounting component is disposed within the cavity; the mounting component is connected to one end of the filter assembly; the mounting component has a first mounting groove facing the first water inlet, the first mounting groove has a first hollow structure on the side facing the filter assembly, the mounting component has a second mounting groove facing the first water outlet, and the second mounting groove has a second hollow structure on the side facing the filter assembly. The valve body assembly includes a first stop valve and a second stop valve. The first stop valve is disposed in the first mounting groove, and the end of the first stop valve away from the first hollow structure abuts against the first limiting part. The second stop valve is disposed in the second mounting groove, and the end of the second stop valve away from the second hollow structure abuts against the second limiting part.

2. The filter element device as described in claim 1, characterized in that, The mounting component has a first extension section extending toward the first water inlet, and a first mounting groove is formed in the first extension section; the mounting component has a second extension section extending toward the first water outlet, and a second mounting groove is formed in the second extension section; a slot structure is provided on one side of the mounting component with the first extension section and the second extension section, and an extension structure extending toward the slot structure is provided on the inner wall of the housing, and the extension structure is engaged with the slot structure to achieve a fit.

3. The filter element device as described in claim 2, characterized in that, The filter assembly includes a first filter element and a first filter element cover. One end of the first filter element is connected to the first filter element cover, and the first filter element cover is connected to one end of the mounting member away from the first extension section and / or the second extension section. A first fluid channel is formed between the outer side of the first filter element and the inner wall of the housing. The first fluid channel communicates with the first mounting groove. A second fluid channel is formed in the middle of the first filter element, and the second fluid channel communicates with the second mounting groove.

4. The filter element device as described in claim 3, characterized in that, The housing is provided with a second water inlet and a second water outlet; a third limiting part is provided at the opening of the second water inlet, and a fourth limiting part is provided at the opening of the second water outlet; the mounting member is provided with a third extension section extending toward the second water inlet, a third mounting groove is formed in the third extension section, and a third hollow structure is provided on the side of the third mounting groove facing the filter assembly; the mounting member is provided with a fourth extension section extending toward the second water outlet, a fourth mounting groove is formed in the fourth extension section, and a fourth hollow structure is provided on the side of the fourth mounting groove facing the filter assembly; the valve body assembly further includes a third stop valve and a fourth stop valve, the third stop valve is disposed in the third mounting groove, and one end of the third stop valve abuts against the third limiting part; the fourth stop valve is disposed in the fourth mounting groove, and one end of the fourth stop valve abuts against the fourth limiting part; and / or, The housing includes a first filter bottle and a second end cap. The first filter bottle has a cavity inside, and the cavity has an opening at one end away from the first water inlet and / or the first water outlet. The second end cap is connected to the end of the first filter bottle with the opening.

5. The filter element device as described in claim 4, characterized in that, The filtration assembly further includes a second filter bottle, a second end cap, a second filter element, and a second filter element cap. One end of the second filter bottle is connected to the second end cap, and one end of the second filter element is connected to the second filter element cap. The second filter element and the second filter element cap are disposed inside the second filter bottle. A third fluid channel is formed between the outer side of the second filter element and the inner wall of the second filter bottle, and the third fluid channel communicates with the third mounting groove. A fourth fluid channel is formed in the middle of the second filter element, and the fourth fluid channel communicates with the fourth mounting groove.

6. The filter element device as described in claim 5, characterized in that, The mounting component has a groove surrounding one end facing the filter assembly, and one end of the filter assembly is engaged in the groove; and / or The mounting component is provided with a fifth abutment portion around its outer periphery, and the fifth abutment portion is sealed to the inner wall of the cavity.

7. The filter element device as described in claim 6, characterized in that, The bottom wall of the groove is provided with a fifth extension section and a sixth extension section. The fifth extension section is sealed to the second end cap, and the sixth extension section is sealed to the second filter element cap. The inner wall of the groove is sealed to the first filter element cap. A fifth fluid channel is formed between the fifth extension section and the inner wall of the groove. The fifth fluid channel is connected to the second fluid channel and the second mounting groove. A sixth fluid channel is formed between the fifth extension section and the sixth extension section. The sixth fluid channel is connected to the third fluid channel and the third mounting groove. A seventh fluid channel is formed in the middle of the sixth extension section. The seventh fluid channel is connected to the fourth fluid channel and the fourth mounting groove.

8. The filter element device as described in claim 7, characterized in that, The slot structure includes a first slot, a second slot, and a third slot. The first slot is located between the first extension segment and the second extension segment, the second slot is located between the second extension segment and the third extension segment, and the third slot is located between the third extension segment and the fourth extension segment. The extension structure includes a seventh extension segment, an eighth extension segment, and a ninth extension segment. The seventh extension segment is inserted into the first slot, the eighth extension segment is inserted into the second slot, and the ninth extension segment is inserted into the third slot.

9. The filter element device as described in claim 8, characterized in that, The first slot is positioned corresponding to the side wall of the groove; the second slot is positioned corresponding to the fifth extension; and the third slot is positioned corresponding to the sixth extension.

10. A water purification device, characterized in that, Includes the filter cartridge device as described in any one of claims 1 to 9.

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