Cover body assembly, filter element structure and water purification equipment

Abstract

The utility model discloses a cover body assembly, a filter element structure and water purification equipment, and relates to the technical field of water purification, and the cover body assembly comprises a first cover body, a second cover body and a handle structure; a mounting groove and a first clamping groove are formed in the middle of the first cover body, a first limiting table and a second limiting table are further arranged on the first cover body, and a limiting hole is formed in the second limiting table; the second cover body is connected with the mounting groove, and the convex part of the second cover body is matched with the first clamping groove; a second clamping groove is formed between one side of the main body part of the second cover body and the first limiting table; a sliding groove is formed in the side, facing the second clamping groove, of the body part. The connecting end of the lifting handle structure is rotatably and slidably arranged in the sliding groove; the arc-shaped section is provided with an inserting part facing the limiting hole; the connecting end is matched with the second clamping groove, and the second clamping groove limits the handle structure in the axial direction of the filter bottle; and the inserting part is matched with the limiting hole. According to the technical scheme, connection among the first cover body, the second cover body and the handle structure is more stable, and accidental opening caused by water pressure impact is prevented.

Description

Technical Field

[0001] This application relates to the field of water purification technology, and in particular to a cover assembly, filter element structure, and water purification equipment. Background Technology

[0002] One existing composite filter integrates a pre-filter, a post-filter, and a reverse osmosis filter into a single filter housing to reduce the space occupied by the composite filter. Considering that the lifespan of the pre-filter and post-filter is shorter than that of the reverse osmosis filter, the pre-filter and post-filter are designed as detachable structures for individual replacement, thereby reducing filter replacement costs. For ease of filter replacement, the cover assembly should also be designed as a detachable structure; however, during operation of the composite filter, the internal water pressure is high, which could cause the cover assembly to be opened or damaged by impact. Utility Model Content

[0003] The main purpose of this application is to propose a filter element structure and water purification equipment, which aims to solve the problem that the cover assembly is easily opened or damaged by impact under high water pressure.

[0004] To achieve the above objectives, the cover assembly proposed in this application includes:

[0005] The first cover is used to fix one end of the filter bottle; the middle part of the first cover is provided with an installation groove, the opening of the installation groove is provided with a first slot, the first cover is also provided with a first limiting platform and a second limiting platform, and the second limiting platform is provided with a limiting hole.

[0006] The second cover is connected to the mounting groove. The second cover includes a main body and a protrusion. The protrusion is located on one side of the main body facing the first slot. The protrusion engages with the first slot. A second slot is formed between one side of the main body and the first limiting platform. A sliding groove is provided on the side of the main body facing the second slot.

[0007] The handle structure includes a connecting end and an arc-shaped segment. The connecting end is rotatably and slidably disposed in a sliding groove. The arc-shaped segment has an insertion portion facing the limiting hole. The connecting end cooperates with the second slot, which axially limits the handle structure on the filter bottle. The insertion portion cooperates with the limiting hole. The bottom of the connecting end or the arc-shaped segment abuts against the protrusion.

[0008] In one embodiment, the top of the first cover is provided with a third limiting platform extending circumferentially along the mounting groove, and the first slot passes through the top and bottom sides of the third limiting platform; one end of the first limiting platform is connected to one side of the third limiting platform, the other end of the first limiting platform extends above the first limiting platform, and the second limiting platform is connected to the top of the third limiting platform.

[0009] In one embodiment, the first limiting platform includes a vertical segment and a horizontal segment, the vertical segment intersecting the horizontal segment, and the horizontal segment being perpendicular to the axial direction of the filter bottle; the vertical segment is connected to one side of the third limiting platform, the horizontal segment is located above the third limiting platform, and the horizontal segment, the vertical segment, the top of the third limiting platform, and one side of the main body surround to form the second slot.

[0010] In one embodiment, the connecting end includes a first extension and a second extension, one side of the first extension and one side of the second extension are connected, and the first extension and the second extension intersect; the first extension is located between the top of the horizontal segment and the three limiting platforms, and the second extension is located between the third limiting platform and one side of the main body.

[0011] In one embodiment, a connecting shaft is provided on the side of the first extension segment away from the second extension segment. The connecting shaft is rotatably and slidably disposed in the slide groove, which extends along the direction in which the first extension segment is inserted into the second slot. The limiting hole extends along the direction in which the first extension segment is inserted into the second slot.

[0012] In one embodiment, the plug-in portion includes a first plug-in post and a second plug-in post, the first plug-in post and the second plug-in post extend in parallel directions, and the second limiting platform is provided with two corresponding limiting holes, the two limiting holes being a first limiting hole and a second limiting hole, the first plug-in post being inserted into the first limiting hole, and the second plug-in post being inserted into the second limiting hole.

[0013] In one embodiment, the main body has protrusions on both sides of each other, and the first cover has two first slots corresponding to the positions of the protrusions; the first cover has two opposing first limiting platforms, and the two sides of the main body form two second slots with the two first limiting platforms respectively.

[0014] In one embodiment, the cover assembly further includes a protective cover, the first cover having a fourth slot, the protective cover having a snap-fit ​​portion connected to the fourth slot; the protective cover covers the second cover and the handle structure.

[0015] This application also proposes a filter element structure, including the cover assembly as described above.

[0016] This application also proposes a water purification device, including the filter element structure as described above.

[0017] The technical solution of this application makes the cover assembly a detachable assembly, which facilitates the disassembly of the first cover, the second cover, and the handle structure for filter replacement. Specifically, the first slot on the first cover engages with the protrusion on the second cover to connect the first cover and the second cover, preventing the second cover from moving along a horizontal plane perpendicular to the filter bottle axis, thus maintaining stability under water pressure. After the first cover and the second cover are connected, a second slot is formed between one side of the main body and the first limiting platform, and a sliding groove is provided on the side of the main body facing the second slot. The handle structure includes a connecting end and an arc-shaped section. The connecting end is rotatably and slidably disposed in the sliding groove. The arc-shaped section has an insertion part facing the limiting hole. The connecting end engages with the second slot, which limits the handle structure along the axial direction of the filter bottle. The insertion part engages with the limiting hole. The bottom of the connecting end or the arc-shaped section abuts against the protrusion. In the working state of the filter element structure, the second cover can be connected to the first cover through the first slot, and the handle structure can be connected to the first cover through the second slot and the limiting hole. At the same time, the connecting end or the bottom of the arc-shaped section of the handle structure abuts against the protrusion. Since the second slot limits the handle structure in the axial direction of the filter bottle, the second cover can be limited in the axial direction of the filter bottle through the handle structure. The connecting end of the handle structure is rotatably and slidably set in the slide groove, and the arc-shaped section has an insertion part that cooperates with the limiting hole, so that the handle structure remains stable under high water pressure and is not easily washed open. This makes the structural connection between the first cover, the second cover and the handle structure more stable and can prevent accidental opening due to water pressure impact. This cover assembly facilitates the replacement of the filter element body in the filter element structure, and also improves the reliability of the cover assembly in actual operation, reducing damage caused by water pressure impact. Attached Figure Description

[0018] 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.

[0019] Figure 1 An exploded structural diagram of an embodiment of the cover assembly provided in this application;

[0020] Figure 2 A schematic diagram of the structure of the first cover body according to an embodiment of the cover body assembly provided in this application;

[0021] Figure 3 A schematic diagram of the structure of the second cover and handle structure according to an embodiment of the cover assembly provided in this application;

[0022] Figure 4 A schematic diagram of an embodiment of the filter element structure provided in this application;

[0023] Figure 5 An exploded structural diagram of an embodiment of the filter element structure provided in this application.

[0024] Explanation of icon numbers:

[0025] 1. First cover; 11. Mounting groove; 12. First slot; 13. First limiting platform; 131. Vertical section; 132. Horizontal section; 14. Second limiting platform; 141. Limiting hole; 15. Third limiting platform; 16. Fourth slot; 2. Second cover; 21. Main body; 211. Sliding groove; 22. Protrusion; 3. Handle structure; 31. Connecting end; 311. First extension section; 3111. Connecting shaft; 312. Second extension section; 32. Arc-shaped section; 321. Insertion part; 3211. First insertion post; 3212. Second insertion post; 4. Filter bottle; 5. Second slot; 6. Protective cover; 61. Snap-fit ​​part.

[0026] 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

[0027] 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.

[0028] 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.

[0029] 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.

[0030] One existing composite filter integrates a pre-filter, a post-filter, and a reverse osmosis filter into a single filter bottle to reduce the space occupied by the composite filter. Considering that the lifespan of the pre-filter and post-filter is shorter than that of the reverse osmosis filter, the pre-filter, post-filter, and reverse osmosis filter are made removable, allowing for individual replacement of the pre-filter and post-filter, reducing replacement costs. To facilitate filter replacement, the cover assembly of the composite filter needs to be removable; however, when the composite filter is in operation, the internal water pressure is high, which can easily cause the cover assembly to be opened or damaged by impact.

[0031] To address the aforementioned problems, this application proposes a cover assembly.

[0032] Please see Figures 1 to 5In one embodiment of this application, the cover assembly includes a first cover 1, a second cover 2, and a handle structure 3; the first cover 1 is used to fix one end of the filter bottle 4; the first cover 1 has a mounting groove 11 in the middle, and a first slot 12 is provided at the opening of the mounting groove 11; the first cover 1 also has a first limiting platform 13 and a second limiting platform 14, and the second limiting platform 14 has a limiting hole 141; the second cover 2 is connected to the mounting groove 11, and the second cover 2 includes a main body 21 and a protrusion 22, the protrusion 22 being located on the side of the main body 21 facing the first slot 12; the protrusion 22 cooperates with the first slot 12; a second slot 5 is formed between one side of the main body 21 and the first limiting platform 13; The main body 21 has a sliding groove 211 on the side facing the second slot 5; the handle structure 3 includes a connecting end 31 and an arc-shaped section 32, the connecting end 31 is rotatably and slidably disposed in the sliding groove 211; the arc-shaped section 32 has an insertion part 321 facing the limiting hole 141; the connecting end 31 cooperates with the second slot 5, the second slot 5 limits the handle structure 3 in the axial direction of the filter bottle 4; the insertion part 321 cooperates with the limiting hole 141; the bottom of the connecting end 31 or the arc-shaped section 32 abuts against the protrusion 22.

[0033] In the above structure, the technical solution of this application sets the cover assembly as a detachable assembly, which facilitates the disassembly of the first cover 1, the second cover 2, and the handle structure 3 to replace the filter element; specifically, the first slot 12 on the first cover 1 cooperates with the protrusion 22 on the second cover 2 to connect the first cover 1 and the second cover 2, preventing the second cover 2 from moving along the horizontal plane perpendicular to the axis of the filter bottle 4, thereby maintaining stability under water pressure; subsequently, after the first cover 1 and the second cover 2 are connected, one of the main body 21 A second slot 5 is formed between the side of the filter bottle 4 and the first limiting platform 13. A sliding groove 211 is provided on the side of the main body 21 facing the second slot 5. The handle structure 3 includes a connecting end 31 and an arc-shaped section 32. The connecting end 31 is rotatably and slidably disposed in the sliding groove 211. The arc-shaped section 32 is provided with an insertion part 321 facing the limiting hole 141. The connecting end 31 cooperates with the second slot 5. The second slot 5 limits the handle structure 3 in the axial direction of the filter bottle 4. The insertion part 321 cooperates with the limiting hole 141. The connecting end 31 or the arc-shaped section 32 is provided with a sliding groove 211 facing the limiting hole 141. The bottom of segment 32 abuts against the protrusion 22; in the working state of the filter element structure, the second cover 2 can be connected to the first cover 1 through the first slot 12, and the handle structure 3 can be connected to the first cover 1 through the second slot 5 and the limiting hole 141. At the same time, the connecting end 31 of the handle structure 3 or the bottom of the arc segment 32 abuts against the protrusion 22. Since the second slot 5 limits the handle structure 3 in the axial direction of the filter bottle 4, the second cover 2 can be limited in the axial direction of the filter bottle 4 through the handle structure 3; the handle structure 3 The connecting end 31 is rotatably and slidably disposed in the slide groove 211. The arc-shaped section 32 is provided with a plug-in part 321 that cooperates with the limiting hole 141, so that the handle structure 3 remains stable under high water pressure and is not easily washed open; it makes the structural connection between the first cover 1, the second cover 2 and the handle structure 3 more stable and can prevent accidental opening due to water pressure impact; the cover assembly facilitates the replacement of the filter element body in the filter element structure, and also improves the reliability of the cover assembly in actual work and reduces damage caused by water pressure impact.

[0034] In one embodiment, the top of the first cover 1 is provided with a third limiting platform 15 extending circumferentially along the mounting groove 11, and the first slot 12 passes through the top and bottom sides of the third limiting platform 15; one end of the first limiting platform 13 is connected to one side of the third limiting platform 15, the other end of the first limiting platform 13 extends to the top of the first limiting platform 13, and the second limiting platform 14 is connected to the top of the third limiting platform 15.

[0035] The third limiting platform 15 extends circumferentially along the mounting groove 11. By adding a first slot 12 to the third limiting platform 15, it provides a limiting function for the installation of the second cover 2. The protrusion 22 of the second cover 2 is inserted into the first slot 12 from above the first cover 1, thereby enhancing the connection stability between the second cover 2 and the first cover 1. The bottom of the second cover 2 abuts against the top of the first cover 1. The third limiting platform 15 and the first slot 12 together restrict the horizontal movement of the second cover 2 on the first cover 1, preventing the second cover 2 from undergoing horizontal displacement under high water pressure or other external forces, thereby ensuring the tight fit and sealing performance of the cover assembly. One side of the first limiting platform 13 is connected to one side of the third limiting platform 15, and the other end of the first limiting platform 13 extends above the third limiting platform 15, so that the first limiting platform 13, the third limiting platform 15, and one side of the main body 21 of the second cover 2 surround each other to form the second slot 5. The second slot 5 provides a mating space for the connecting end 31 of the handle structure 3, allowing it to engage with the second slot 5 and further enhancing the stability of the cover assembly. Since the connecting end 31 of the handle structure 3 abuts against the protrusion 22 of the first cover 1, it not only limits the handle structure 3 axially on the filter bottle 4, but also limits the first cover 1 axially on the filter bottle 4, making the entire cover assembly more stable axially and preventing axial movement due to water pressure impact or other external forces. Under high water pressure or other external forces, the force on the cover assembly is dispersed and transmitted through structures such as the third limiting platform 15, the first slot 12, and the first limiting platform 13, reducing pressure concentration in a single area and thus lowering the risk of damage to the cover assembly.

[0036] In one embodiment, the first limiting platform 13 includes a vertical segment 131 and a horizontal segment 132, the vertical segment 131 and the horizontal segment 132 intersect, and the horizontal segment 132 is perpendicular to the axial direction of the filter bottle 4; the vertical segment 131 is connected to one side of the third limiting platform 15, the horizontal segment 132 is located above the third limiting platform 15, and the horizontal segment 132, the vertical segment 131, the top of the third limiting platform 15 and one side of the main body 21 surround to form a second slot 5.

[0037] In the above structure, the horizontal segment 132 is perpendicular to the axial direction of the filter bottle 4, and the horizontal segment 132, the vertical segment 131, the top of the third limiting platform 15, and one side of the main body 21 form a second groove 5. This second groove 5 provides a connection limiting space for the connecting end 31 of the handle structure 3, ensuring that the handle structure 3 is effectively limited in the axial direction of the filter bottle 4, preventing axial movement of the handle structure 3 due to water pressure or other external forces. The intersection of the vertical segment 131 and the horizontal segment 132, and the connection between the vertical segment 131 and the horizontal segment 132 and the third limiting platform 15, forms a stable frame structure that can better distribute and withstand forces from different directions. That is, the horizontal segment 132, the vertical segment 131, the top of the third limiting platform 15, and one side of the main body 21 cooperate to provide stable support and limitation for the connecting end 31 of the handle structure 3, ensuring its stability in operation and thus improving the overall stability of the cover assembly. When subjected to external forces, the force is dispersed and transmitted through the vertical section 131 and horizontal section 132 of the first limiting platform 13, the third limiting platform 15, and other structures, reducing the pressure concentration in a single part and thus reducing the risk of damage.

[0038] In one embodiment, the connecting end 31 includes a first extension 311 and a second extension 312, one side of the first extension 311 and one side of the second extension 312 are connected, and the first extension 311 and the second extension 312 intersect; the first extension 311 is located between the top of the transverse section 132 and the three limiting platforms, and the second extension 312 is located between the third limiting platform 15 and one side of the main body 21.

[0039] In the above structure, the first extension 311 and the second extension 312 intersect, giving the connecting end 31 a larger contact area within the second slot 5. This enhances structural stability, allowing it to better withstand forces from different directions and preventing displacement or damage to the connecting end 31 under high water pressure or other external forces. The first extension 311 is located between the horizontal section 132 and the top of the third limiting platform 15, while the second extension 312 is located between the third limiting platform 15 and one side of the main body 21. This ensures that the connecting end 31 can fit tightly with each boundary of the second slot 5, achieving precise positioning. This helps ensure that the handle structure 3 is effectively positioned axially within the filter bottle 4, preventing axial movement due to water pressure impact or other external forces.

[0040] In one embodiment, a connecting shaft 3111 is provided on the side of the first extension 311 away from the second extension 312. The connecting shaft 3111 is rotatably and slidably disposed in the slide groove 211. The slide groove 211 extends along the direction in which the first extension 311 is inserted into the second slot 5. The limiting hole 141 extends along the direction in which the first extension 311 is inserted into the second slot 5.

[0041] The connecting shaft 3111 is rotatably and slidably disposed within the slide groove 211, allowing the handle structure 3 to move along the slide groove 211 within a certain range. Simultaneously, the handle structure 3 can rotate relative to the second cover 2. Adjusting the position or angle of the handle structure 3 can be achieved simply by rotating the connecting shaft 3111, making operation more convenient. The slide groove 211 and the limiting hole 141 extend along the direction in which the first extension section 311 inserts into the second slot 5. When the cover assembly needs to be locked, the connecting end 31 of the handle structure 3 engages with the second slot 5, and the insertion part 321 can be inserted into the limiting hole 141. Inside, a stable locking structure is formed; when the cover assembly needs to be disassembled, an external force is applied to pull the handle structure 3, causing the connecting shaft 3111 of the connecting end 31 to slide along the slide groove 211 until the connecting end 31 separates from the second slot 5, and the handle structure 3 can then rotate around the connecting shaft 3111. By lifting the handle structure 3 upward, the second cover 2 can be lifted upward, causing the protrusion 22 to separate from the first slot 12, thus achieving the purpose of disassembling the second cover 2 and the first cover 1; in addition, the movement range of the handle structure 3 can be limited by the boundary of the slide groove 211 to ensure its stability in the working state.

[0042] In one embodiment, the insertion part 321 includes a first insertion post 3211 and a second insertion post 3212. The first insertion post 3211 and the second insertion post 3212 extend in parallel directions. The second limiting platform 14 is provided with two corresponding limiting holes 141. The two limiting holes 141 are provided with a first limiting hole 141 and a second limiting hole 141. The first insertion post 3211 is inserted into the first limiting hole 141, and the second insertion post 3212 is inserted into the second limiting hole 141.

[0043] In the above structure, by setting two insertion pins and two corresponding limiting holes 141, the locking between the handle structure 3 and the first cover 1 is made more stable. The two insertion pins are respectively inserted into the two limiting holes 141, providing a double locking point, enhancing the reliability and stability of the locking, and preventing accidental opening due to water pressure or other external forces; when subjected to external forces, the two insertion pins share the force, reducing the pressure concentration of a single insertion pin and reducing the risk of damage.

[0044] In one embodiment, the main body 21 has protrusions 22 on both sides, and the first cover 1 has two first slots 12 corresponding to the positions of the protrusions 22; the first cover 1 has two oppositely arranged first limiting platforms 13, and the two sides of the main body 21 form two second slots 5 between the two first limiting platforms 13 respectively.

[0045] In the above structure, protrusions 22 are provided on both opposite sides of the main body 21, which cooperate with the two first slots 12 on the first cover 1 to make the connection between the second cover 2 and the first cover 1 more stable. The cooperation between the two protrusions 22 and the first slots 12 provides a double connection point, enhancing the reliability and stability of the connection and preventing accidental opening or displacement due to water pressure or other external forces.

[0046] In one embodiment, the cover assembly further includes a protective cover 6. The first cover 1 is provided with a fourth slot 16, and the protective cover 6 is provided with a snap-fit ​​part 61, which is connected to the fourth slot 16. The protective cover 6 covers the second cover 2 and the handle structure 3.

[0047] In the above structure, the protective cover 6 provides additional protection for the second cover 2 and the handle structure 3, preventing external objects from directly contacting them and reducing damage caused by accidental collisions, scratches, or other external forces, thereby extending the service life of the cover assembly. The engagement of the snap-fit ​​portion 61 on the protective cover 6 with the fourth slot 16 on the first cover 1 allows for easy installation and removal of the protective cover 6. After installation, it fits tightly with the first cover 1, forming a stable connection structure, further improving the stability and reliability of the cover assembly and ensuring its normal operation in complex working environments such as high water pressure. It should be noted that the fourth slot 16 is designed as an L-shaped slot, providing axial positioning of the protective cover 6 along the filter element body.

[0048] The technical solution of this application makes the cover assembly a detachable assembly, which facilitates the disassembly of the first cover 1, the second cover 2, and the handle structure 3 to replace the filter element. Specifically, the first slot 12 on the first cover 1 cooperates with the protrusion 22 on the second cover 2 to connect the first cover 1 and the second cover 2, preventing the second cover 2 from moving along a horizontal plane perpendicular to the axis of the filter bottle 4, thereby maintaining stability under water pressure. After the first cover 1 and the second cover 2 are connected, one side of the main body 21 is connected to the first... A second slot 5 is formed between the limiting platforms 13, and a sliding groove 211 is provided on the side of the main body 21 facing the second slot 5; the handle structure 3 includes a connecting end 31 and an arc-shaped section 32, the connecting end 31 is rotatably and slidably disposed in the sliding groove 211; the arc-shaped section 32 is provided with an insertion part 321 facing the limiting hole 141; the connecting end 31 cooperates with the second slot 5, and the second slot 5 limits the handle structure 3 in the axial direction of the filter bottle 4; the insertion part 321 cooperates with the limiting hole 141; the connecting end 31 or the arc-shaped section 32 The bottom of the second cover 2 abuts against the protrusion 22; in the working state of the filter element structure, the second cover 2 can be connected to the first cover 1 through the first slot 12, and the handle structure 3 can be connected to the first cover 1 through the second slot 5 and the limiting hole 141. At the same time, the bottom of the connecting end 31 or the arc segment 32 of the handle structure 3 abuts against the protrusion 22. Since the second slot 5 limits the handle structure 3 in the axial direction of the filter bottle 4, the second cover 2 can be limited in the axial direction of the filter bottle 4 through the handle structure 3; the handle structure 3 The connecting end 31 is rotatably and slidably disposed in the slide groove 211, and the arc-shaped section 32 is provided with a plug-in part 321 that cooperates with the limiting hole 141, so that the handle structure 3 remains stable under high water pressure and is not easily washed open; the structural connection between the first cover 1, the second cover 2 and the handle structure 3 is more stable, and it can prevent accidental opening due to water pressure impact; the cover assembly facilitates the replacement of the filter element body in the filter element structure, and also improves the reliability of the cover assembly in actual operation and reduces damage caused by water pressure impact.

[0049] This application also proposes a filter element structure, which includes a cover assembly, a filter bottle 4, and a filter element body. The specific structure of the cover assembly is as described in the above embodiments. Since this filter element structure 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.

[0050] This application also proposes a water purification device, which includes a filter element structure. The specific structure of the filter element structure 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.

[0051] 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 cover assembly, characterized in that, include: The first cover is used to fix one end of the filter bottle; the middle part of the first cover is provided with an installation groove, the opening of the installation groove is provided with a first slot, the first cover is also provided with a first limiting platform and a second limiting platform, and the second limiting platform is provided with a limiting hole. The second cover is connected to the mounting groove. The second cover includes a main body and a protrusion. The protrusion is located on the side of the main body facing the first slot. The protrusion engages with the first slot. A second slot is formed between one side of the main body and the first limiting platform. A sliding groove is provided on the side of the main body facing the second slot. The handle structure includes a connecting end and an arc-shaped segment. The connecting end is rotatably and slidably disposed in a sliding groove. The arc-shaped segment has an insertion portion facing the limiting hole. The connecting end cooperates with a second locking groove, which axially limits the handle structure on the filter bottle. The insertion portion cooperates with the limiting hole. The bottom of the connecting end or the arc-shaped segment abuts against the protrusion.

2. The cover assembly as claimed in claim 1, characterized in that, The top of the first cover is provided with a third limiting platform extending circumferentially along the mounting groove, and the first slot passes through the top and bottom sides of the third limiting platform; one end of the first limiting platform is connected to one side of the third limiting platform, the other end of the first limiting platform extends to the top of the first limiting platform, and the second limiting platform is connected to the top of the third limiting platform.

3. The cover assembly as described in claim 2, characterized in that, The first limiting platform includes a vertical segment and a horizontal segment, the vertical segment intersects the horizontal segment, and the horizontal segment is perpendicular to the axial direction of the filter bottle; the vertical segment is connected to one side of the third limiting platform, the horizontal segment is located above the third limiting platform, and the horizontal segment, the vertical segment, the top of the third limiting platform and one side of the main body surround to form the second slot.

4. The cover assembly as claimed in claim 3, characterized in that, The connecting end includes a first extension section and a second extension section, one side of the first extension section and one side of the second extension section are connected, and the first extension section and the second extension section intersect; the first extension section is located between the top of the horizontal section and the three limiting platforms, and the second extension section is located between the third limiting platform and one side of the main body.

5. The cover assembly as claimed in claim 4, characterized in that, A connecting shaft is provided on the side of the first extension segment away from the second extension segment. The connecting shaft is rotatably and slidably disposed in the slide groove, which extends along the direction in which the first extension segment is inserted into the second slot. The limiting hole extends along the direction in which the first extension segment is inserted into the second slot.

6. The cover assembly as described in any one of claims 1 to 5, characterized in that, The plug-in part includes a first plug-in post and a second plug-in post. The first plug-in post and the second plug-in post extend in parallel directions. The second limiting platform is provided with two corresponding limiting holes. The two limiting holes are configured with a first limiting hole and a second limiting hole. The first plug-in post is inserted into the first limiting hole, and the second plug-in post is inserted into the second limiting hole.

7. The cover assembly as claimed in any one of claims 1 to 5, characterized in that, The main body has protrusions on both sides, and the first cover has two first slots corresponding to the positions of the protrusions; the first cover has two first limiting platforms arranged opposite to each other, and the two sides of the main body form two second slots with the two first limiting platforms respectively.

8. The cover assembly as described in any one of claims 1 to 5, characterized in that, The cover assembly further includes a protective cover. The first cover has a fourth slot, and the protective cover has a snap-fit ​​part that connects to the fourth slot. The protective cover covers the second cover and the handle structure.

9. A filter element structure, characterized in that, Includes the cover assembly as described in any one of claims 1 to 8.

10. A water purification device, characterized in that, Includes the filter element structure as described in claim 9.

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