Filter element structure and water purification equipment
By setting an elastic element in the mounting groove of the filter element body, and using its elastic deformation to generate damping force, the problem of unstable damping effect of traditional filter element cover is solved, and a more stable and durable filter element structure is achieved.
Patent Information
- Application Number
- CN202520350065.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The damping effect of traditional filter cartridge covers is unstable, resulting in high manufacturing costs, difficult assembly, and easy damage, which affects the user experience.
An elastic element is installed in the mounting groove of the filter element body. The elastic deformation of the elastic element generates damping force, which replaces the traditional damper, simplifies the structure and improves the stability of the damping effect.
It reduces manufacturing costs and assembly difficulty, improves the stability of damping effect, extends product lifespan, and enhances structural durability.
Smart Images
Figure CN223959327U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water purification technology, and in particular to a filter element structure and water purification equipment. Background Technology
[0002] In water purification equipment, filter cartridge covers are used to seal the filter cartridge to the external space, while decorative covers can cover and beautify the product surface, and also provide additional functions such as protection or sealing. During cover installation, appropriate damping provides moderate resistance, helping users precisely control the speed and angle during rotation, clearly perceive the rotation progress, and avoid over- or under-rotation of the filter cartridge. However, traditional methods of achieving damping effects typically use dampers. Dampers not only require precision machining and assembly, but also have numerous components, increasing manufacturing costs and assembly difficulty. Furthermore, mechanical parts are prone to wear or failure, resulting in unstable damping effects and impacting the user experience. 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 problems of complex structure and unstable damping effect of existing cover connection structures.
[0004] To achieve the above objectives, the filter element structure proposed in this application includes:
[0005] A filter element body, one end of which is provided with a first mounting groove;
[0006] An elastic element is disposed within the first mounting groove;
[0007] The cover body is connected to the end of the filter element body that has the first mounting groove, and the cover body abuts against the elastic element.
[0008] In one embodiment, the first mounting groove is disposed on the outer side wall of the filter element body, and the first mounting groove has a first opening extending radially along the filter element body; the elastic member at least partially protrudes from the first opening.
[0009] In one embodiment, the end face of the filter element body is provided with a first connecting post, the cover body is provided with a second mounting groove, and the end of the filter element body with the first mounting groove is located in the second mounting groove; the inner bottom wall of the second mounting groove is provided with a locking hole, and the first connecting post is engaged with the locking hole for connection.
[0010] In one embodiment, a first limiting strip and a second limiting strip are provided at one end of the filter element body. The first limiting strip and the second limiting strip are arranged around the outer side wall of the filter element body, and the first mounting groove is formed between the first limiting strip and the second limiting strip.
[0011] In one embodiment, the second mounting groove is provided with a second opening extending axially along the filter element body, and the inner wall of the second mounting groove is provided with a first limiting protrusion extending radially along the filter element body. The filter element body is used to enter the second mounting groove through the second opening until one side surface of the first limiting protrusion along the axial direction of the filter element body abuts against one side surface of the first limiting strip along the axial direction of the filter element body.
[0012] In one embodiment, the filter element body includes a filter bottle and a filter element cover, one end of the filter bottle being detachably connected to the filter element cover; the first mounting groove is disposed around the outer side wall of the filter element cover, and one end of the first connecting post is connected to the end face of the filter element cover.
[0013] In one embodiment, the filter element structure further includes a fastener, which includes a second connecting post and a limiting block. The first connecting post has a connecting hole, and the second connecting post is connected to the connecting hole. The end of the locking hole away from the second mounting groove passes through the end face of the cover body, and one side surface of the limiting block along the axial direction of the filter element body abuts against the end face of the cover body.
[0014] In one embodiment, the cover body is provided with a third mounting groove, the third mounting groove is provided with a third opening extending along the axial direction of the filter element body, and the bottom wall of the third mounting groove forms the end face of the cover body; the third mounting groove is connected to the end of the card hole away from the second mounting groove, and the limiting block is located in the third mounting groove and abuts against the bottom wall of the third mounting groove.
[0015] In one embodiment, the second connecting post is threaded or interference-fitted with the connecting hole; and / or,
[0016] The filter element structure further includes a decorative strip located within the third mounting groove, the outer surface of which is on the same plane as the opening of the third mounting groove; and / or,
[0017] A second limiting protrusion is provided at the connection between the card hole and the third mounting groove. The second limiting protrusion is arranged around the inner wall of the card hole; one side of the second limiting protrusion abuts against the limiting block.
[0018] This application also proposes a water purification device, including the filter element structure as described above.
[0019] The technical solution of this application sets an elastic element in the first mounting groove of the filter element body and connects the cover body to one end of the filter element body. At the same time, the cover body abuts against the elastic element. The elastic deformation of the elastic element generates a damping force when the cover body and the filter element body are connected. The elastic deformation of the elastic element can provide relatively consistent resistance in all directions, improve the stability of the damping effect, and thus ensure the stability of the damping perceived by the user during rotation. At the same time, using an elastic element to replace a damper to achieve the damping effect reduces the number of parts, making the overall structure simpler. This reduces manufacturing costs and assembly difficulty, and also reduces the risk of mechanical failure, making the overall structure more durable, adaptable to different usage environments, and extending the product's service life. Attached Figure Description
[0020] 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.
[0021] Figure 1 A schematic diagram of an embodiment of the filter element structure provided in this application;
[0022] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0023] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;
[0024] Figure 4 A schematic diagram of the filter cover of one embodiment of the filter structure provided in this application;
[0025] Figure 5 This is a schematic diagram of the overall structure of an embodiment of the filter element structure provided in this application.
[0026] Explanation of icon numbers:
[0027] 1. Filter element body; 11. Filter bottle; 12. Filter element cover; 121. First mounting groove; 122. First connecting post; 1221. Connecting hole; 123. First limiting strip; 124. Second limiting strip; 2. Elastic element; 3. Cover body; 31. Second mounting groove; 32. Locking hole; 33. First limiting protrusion; 34. Second limiting protrusion; 35. Third mounting groove; 4. Fastener; 41. Second connecting post; 42. Limiting block; 5. Decorative strip.
[0028] 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
[0029] 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.
[0030] 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.
[0031] 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.
[0032] In water purification equipment, filter cartridge covers are used to seal the filter cartridge to the external space, while decorative covers can cover and beautify the product surface, and also provide additional functions such as protection or sealing. During cover installation, appropriate damping provides moderate resistance, helping users precisely control the speed and angle during rotation, clearly perceive the rotation progress, and avoid over- or under-rotation of the filter cartridge. However, traditional methods of achieving damping effects typically use dampers. Dampers not only require precision machining and assembly, but also have numerous components, increasing manufacturing costs and assembly difficulty. Furthermore, mechanical parts are prone to wear or failure, resulting in unstable damping effects and impacting the user experience.
[0033] To address the aforementioned issues, this application proposes a filter element structure.
[0034] Please see Figures 1 to 5In one embodiment of this application, the filter element structure includes a filter element body 1, an elastic element 2, and a cover body 3. One end of the filter element body 1 is provided with a first mounting groove 121; the elastic element 2 is disposed in the first mounting groove 121; the cover body 3 is connected to the end of the filter element body 1 provided with the first mounting groove 121, and the cover body 3 abuts against the elastic element 2.
[0035] In the above structure, an elastic element 2 is provided in the first mounting groove 121 of the filter element body 1, and the cover body 3 is connected to one end of the filter element body 1. At the same time, the cover body 3 abuts against the elastic element 2. The elastic deformation of the elastic element 2 generates a damping force when the cover body and the filter element body 1 are connected. The elastic deformation of the elastic element 2 can provide relatively consistent resistance in all directions, improve the stability of the damping effect, and thus ensure the stability of the damping perceived by the user during rotation. At the same time, using the elastic element 2 to replace the damper to achieve the damping effect reduces the number of parts, making the overall structure simpler. This reduces manufacturing costs and assembly difficulty, and also reduces the risk caused by mechanical failure, making the overall structure more durable, adaptable to different usage environments, and extending the product's service life.
[0036] The elastic element 2 can be made of polymer materials (such as rubber, thermoplastic elastomers, etc.). These materials have good elastic deformation capacity and energy dissipation characteristics. The elastic deformation of the elastic element 2 generates damping force when the cover and filter element body 1 are connected. In addition, by adjusting the compression ratio and material properties of the elastic element 2, a suitable rotational resistance can be selected as needed to achieve a stable damping effect. Specifically, the elastic element 2 undergoes elastic deformation when the cover body 3 rotates, generating a damping force opposite to the direction of rotation, thereby dissipating rotational energy and making the damping effect more stable. Furthermore, the elastic deformation capacity of the elastic element 2 allows it to maintain good performance after multiple uses, further extending the product's service life.
[0037] In one embodiment, a first mounting groove 121 is disposed on the outer side wall of the filter element body 1, and the first mounting groove 121 has a first opening extending radially (X direction) along the filter element body 1; the elastic member 2 at least partially protrudes from the first opening. In the above structure, the first mounting groove 121 is disposed on the outer side wall of the filter element body 1, and by making the elastic member 2 at least partially protrude from the first opening of the first mounting groove 121, the elastic member 2 can be in close contact with the side wall of the cover body 3 after the cover body 3 is assembled. When the cover body 3 rotates, the elastic member 2 generates resistance through its own elastic deformation, thereby achieving a damping effect. By adjusting the degree of protrusion of the elastic member 2, the magnitude of the damping force when the cover body 3 and the filter element body 1 are installed can be changed, ensuring that the resistance during rotation is uniform and stable. The damping effect can be achieved by the contact between the elastic member 2 and the cover body 3, which greatly simplifies the structure. Moreover, due to the elastic deformation characteristics of the elastic member 2, the elastic member 2 can provide stable resistance, ensuring that the cover body 3 is always in contact with the elastic member 2 during rotation, so that the user can feel continuous and stable feedback during operation.
[0038] Additionally, by selecting materials with different elastic moduli as the material for the elastic element 2, the damping force during installation of the cover body 3 and the filter element body 1 can be adjusted. Increasing the protrusion of the elastic element 2 or selecting a material with a higher elastic modulus can increase the damping force. For example, using natural rubber, nitrile rubber, or thermoplastic elastomers for the elastic element 2 can give it different damping effects.
[0039] In one embodiment, the filter element body 1 has a first connecting post 122 on its end face, and the cover body 3 has a second mounting groove 31. One end of the filter element body 1 with the first mounting groove 121 is located in the second mounting groove 31. The inner bottom wall of the second mounting groove 31 has a locking hole 32, and the first connecting post 122 is engaged with the locking hole 32. In the above structure, when the cover body 3 rotates, the elastic element 2 generates resistance through its own elastic deformation, thereby achieving a stable damping effect. In addition, the engagement of the first connecting post 122 and the locking hole 32 ensures that the cover body 3 and the filter element body 1 maintain axial (Y direction) alignment when installed, improving assembly efficiency. At the same time, it also makes the connection between the filter element body 1 and the cover body 3 more secure, avoiding damping failure due to loosening. Furthermore, the elastic element 2 at least partially protrudes from the opening of the first mounting groove 121, ensuring that it always maintains contact with the side wall of the cover body 3, further enhancing the stability of the damping effect. The cover body 3 and the filter element body 1 are connected by the first connecting post 122 and the card hole 32, which simplifies the assembly process, reduces the number of parts, and lowers the production cost.
[0040] In one embodiment, a first limiting strip 123 and a second limiting strip 124 are provided at one end of the filter element body 1. The first limiting strip 123 and the second limiting strip 124 are arranged around the outer side wall of the filter element body 1, and a first mounting groove 121 is formed between the first limiting strip 123 and the second limiting strip 124. In the above structure, one end of the filter element body 1 is provided with a first limiting strip 123 and a second limiting strip 124, which together form a first mounting groove 121. The first mounting groove 121 is used to accommodate the elastic member 2, ensuring that the elastic member 2 can correctly abut against the cover body 3 after assembly. The elastic member 2 is installed in the first mounting groove 121 and at least partially protrudes from the opening of the mounting groove. The inner bottom wall of the second mounting groove 31 is provided with a locking hole 32 for cooperating with the first connecting post 122 of the filter element body 1. Specifically, the first limiting strip 123 and the second limiting strip 124 are arranged around the outer side wall of the filter element body 1 to form a ring structure, so that the first limiting strip 123 and the second limiting strip 124 can be evenly distributed on the outer side of the filter element body 1, providing stable support and limiting function for the elastic member 2. When the cover body 3 rotates, the elastic element 2 generates resistance through its own elastic deformation, thereby achieving a stable damping effect. At this time, the first limiting strip 123 and the second limiting strip 124 ensure the correct installation and positioning of the elastic element 2 in the first mounting groove 121, preventing the elastic element 2 from shifting or falling off during assembly or use. The cooperation between the first connecting post 122 and the locking hole 32 further enhances the connection stability between the filter element body 1 and the cover body 3, ensuring reliability in long-term use.
[0041] In one embodiment, the second mounting groove 31 has a second opening extending along the axial direction (Y direction) of the filter element body 1. The inner wall of the second mounting groove 31 has a first limiting protrusion 33 extending along the radial direction (X direction) of the filter element body 1. The filter element body 1 is used to enter the second mounting groove 31 through the second opening until one side surface of the first limiting protrusion 33 along the axial direction (Y direction) of the filter element body 1 abuts against one side surface of the first limiting strip 123 along the axial direction (Y direction) of the filter element body 1. In the above structure, the second mounting groove 31 has a second opening extending along the axial direction (Y direction) of the filter element body 1, so that the filter element body 1 can smoothly enter the second mounting groove 31 through the second opening, which facilitates assembly; the inner wall of the second mounting groove 31 has a first limiting protrusion 33 extending along the radial direction (X direction) of the filter element body 1. The first limiting protrusion 33 engages with the first limiting strip 123 on the filter element body 1 to ensure the filter element body 1 is accurately and stably positioned after assembly. During installation, one end of the filter element body 1 is inserted into the second mounting groove 31 of the cover body 3, and the first connecting post 122 engages with the locking hole 32 to achieve a tight connection between the two. The first limiting protrusion 33 abuts against the first limiting strip 123, restricting the position of the filter element body 1 within the second mounting groove 31 to prevent over-insertion or loosening. When the cover body 3 rotates, the elastic element 2 generates resistance through its own elastic deformation, thereby achieving a stable damping effect. The engagement of the first limiting protrusion 33 and the first limiting strip 123 restricts the relative position between the filter element body 1 and the cover body 3, ensuring stability after assembly. At the same time, the engagement of the first connecting post 122 and the locking hole 32 further enhances the connection strength between the filter element body 1 and the cover body 3, ensuring reliability during long-term use.
[0042] In one embodiment, the filter element body 1 includes a filter bottle 11 and a filter element cover 12. One end of the filter bottle 11 is detachably connected to the filter element cover 12. A first mounting groove 121 is disposed around the outer side wall of the filter element cover 12, and one end of the first connecting post 122 is connected to the end face of the filter element cover 12. In the above structure, one end of the filter bottle 11 is detachably connected to the filter element cover 12, which facilitates the replacement and maintenance of the filter element. A first mounting groove 121 is provided around the outer side wall of the filter element cover 12 for installing the elastic element 2. The first mounting groove 121 is provided around the outer side wall of the filter element cover 12 to ensure that the elastic element 2 can be evenly distributed around the circumference of the filter element cover 12. The elastic element 2 is installed in the first mounting groove 121 and at least partially protrudes from the opening of the mounting groove so as to abut against the side wall of the cover body 3 to produce a stable damping effect. In addition, one end of the first connecting post 122 is connected to the end face of the filter element cover 12, and the other end is used to cooperate with the locking hole 32 of the cover body 3 to achieve a tight connection between the filter element body 1 and the cover body 3.
[0043] In one embodiment, the filter element structure further includes a fastener 4, which includes a second connecting post 41 and a limiting block 42. The first connecting post 122 has a connecting hole 1221, and the second connecting post 41 is connected to the connecting hole 1221. The end of the locking hole 32 away from the second mounting groove 31 passes through the end face of the cover body 3, and the side surface of the limiting block 42 along the axial direction (Y direction) of the filter element body 1 abuts against the end face of the cover body 3. In the above structure, one end of the filter element body 1 is inserted into the second mounting groove 31 of the cover body 3, and the first connecting post 122 cooperates with the locking hole 32 to achieve a preliminary connection. By inserting the second connecting post 41 of the fastener 4 into the connecting hole 1221 of the first connecting post 122, the limiting block 42 abuts against the end face of the cover body 3, further enhancing the stability of the connection. The abutment between the limiting block 42 and the end face of the cover body 3 ensures a stable connection between the cover body 3 and the filter element cover 12.
[0044] In one embodiment, the cover body 3 is provided with a third mounting groove 35, the third mounting groove 35 is provided with a third opening extending along the axial direction (Y direction) of the filter element body 1, and the bottom wall of the third mounting groove 35 forms the end face of the cover body 3; the third mounting groove 35 is connected to the end of the card hole 32 away from the second mounting groove 31, and the limiting block 42 is located in the third mounting groove 35 and abuts against the bottom wall of the third mounting groove 35. In the above structure, the cover body 3 is provided with a third mounting groove 35, which has a third opening extending along the axial direction (Y direction) of the filter element body 1. The bottom wall of the third mounting groove 35 forms the end face of the cover body 3, ensuring that the limiting block 42 can tightly abut against the end face of the cover body 3. The third mounting groove 35 is connected to the end of the locking hole 32 away from the second mounting groove 31. The limiting block 42 is located in the third mounting groove 35 and abuts against the bottom wall of the third mounting groove 35. When one end of the filter element body 1 is inserted into the second mounting groove 31 of the cover body 3, the first connecting post 122 cooperates with the locking hole 32 to achieve a preliminary connection. By inserting the second connecting post 41 of the fastener 4 into the connecting hole 1221 of the first connecting post 122, the limiting block 42 abuts against the end face of the cover body 3, further enhancing the stability of the connection. The abutment between the limiting block 42 and the end face of the cover body 3 ensures a stable connection between the cover body 3 and the filter element body 1.
[0045] In one embodiment, the filter element structure further includes a decorative strip 5 located within the third mounting groove 35, with its outer surface flush with the opening of the third mounting groove 35. In this structure, the decorative strip 5 is installed within the third mounting groove 35, and its outer surface is flush with the opening of the third mounting groove 35, concealing the fastener 4 and making the surface of the cover body 3 smoother. The decorative strip 5 can be made of plastic or rubber, used to cover the fastener 4 and the limiting block 42.
[0046] In one embodiment, the second connecting post 41 is threaded or interference-fitted with the connecting hole 1221. In the above structure, one end of the filter element body 1 is inserted into the second mounting groove 31 of the cover body 3, and the first connecting post 122 engages with the locking hole 32 to achieve a preliminary connection; furthermore, the second connecting post 41 of the fastener 4 is connected to the connecting hole 1221 of the first connecting post 122 by means of threaded connection or interference fit, and the limiting block 42 enters the third mounting groove 35 and is flush with or embedded in the end face of the cover body 3, further enhancing the stability of the connection.
[0047] In one embodiment, a second limiting protrusion 34 is provided at the connection between the locking hole 32 and the third mounting groove 35, and the second limiting protrusion 34 is arranged around the inner wall of the locking hole 32; one side of the second limiting protrusion 34 abuts against the limiting block 42. In the above structure, when the second connecting post 41 of the fastener 4 is connected to the connecting hole 1221 of the first connecting post 122, the limiting block 42 enters the third mounting groove 35 and abuts against the second limiting protrusion 34; the second limiting protrusion 34 is arranged around the inner wall of the locking hole 32 to ensure that the limiting block 42 will not shift after assembly, further fixing the position of the fastener 4; the decorative strip 5 covers the limiting block 42, hiding the fastener 4 and the limiting block 42, making the surface of the cover body 3 smoother.
[0048] The technical solution of this application provides an elastic element 2 in the first mounting groove 121 of the filter element body 1, and connects the cover body 3 to one end of the filter element body 1. At the same time, the cover body 3 abuts against the elastic element 2. The elastic deformation of the elastic element 2 generates a damping force when the cover body and the filter element body 1 are connected. The elastic deformation of the elastic element 2 can provide relatively consistent resistance in all directions, improve the stability of the damping effect, and thus ensure the stability of the damping perceived by the user during rotation. At the same time, using the elastic element 2 to replace the damper to achieve the damping effect reduces the number of parts, making the overall structure simpler. This reduces manufacturing costs and assembly difficulty, and also reduces the risk of mechanical failure, making the overall structure more durable, adaptable to different usage environments, and extending the product's service life.
[0049] 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.
[0050] The above are merely exemplary embodiments of this application and do 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 construction characterized by, The filter core structure comprises: a filter core body, one end of the filter core body being provided with a first mounting groove; an elastic member, the elastic member being arranged in the first mounting groove; a cover body, the cover body being connected to one end of the filter core body provided with the first mounting groove, and the cover body abutting against the elastic member.
2. The filter cartridge construction of claim 1 wherein, The first mounting groove is arranged on the outer side wall of the filter core body, and the first mounting groove is provided with a first opening extending in the radial direction of the filter core body; the elastic member at least partially protrudes from the first opening.
3. The filter cartridge construction of claim 1 wherein, The end surface of the filter core body is provided with a first connecting column, the cover body is provided with a second mounting groove, and one end of the filter core body provided with the first mounting groove is located in the second mounting groove; the inner bottom wall of the second mounting groove is provided with a clamping hole, and the first connecting column is connected with the clamping hole.
4. The filter cartridge construction of claim 3 wherein, One end of the filter core body is provided with a first limiting strip and a second limiting strip, the first limiting strip and the second limiting strip are arranged around the outer side wall of the filter core body, and the first limiting strip and the second limiting strip form the first mounting groove.
5. The filter cartridge construction of claim 4 wherein, The second mounting groove is provided with a second opening extending in the axial direction of the filter core body, the inner wall of the second mounting groove is provided with a first limiting protrusion extending in the radial direction of the filter core body, the filter core body is used to enter the second mounting groove through the second opening, and the first limiting protrusion abuts against one side surface of the first limiting strip in the axial direction of the filter core body.
6. The filter cartridge construction of claim 3 wherein, The filter core body comprises a filter bottle and a filter core cover, one end of the filter bottle is detachably connected with the filter core cover; the first mounting groove is arranged around the outer side wall of the filter core cover, and one end of the first connecting column is connected with the end surface of the filter core cover.
7. The filter cartridge construction of any of claims 3-6 wherein, The filter core structure further comprises a fastener, the fastener comprises a second connecting column and a limiting block, the first connecting column is provided with a connecting hole, the second connecting column is connected with the connecting hole; one end of the clamping hole away from the second mounting groove penetrates through the end surface of the cover body, and the limiting block abuts against the end surface of the cover body in the axial direction of the filter core body.
8. The filter cartridge construction of claim 7 wherein, The cover body is provided with a third mounting groove, the third mounting groove is provided with a third opening extending in the axial direction of the filter core body, and the bottom wall of the third mounting groove forms the end surface of the cover body; the third mounting groove is in communication with one end of the clamping hole away from the second mounting groove, and the limiting block is located in the third mounting groove and abuts against the bottom wall of the third mounting groove.
9. The filter cartridge construction of claim 8 wherein, The second connecting column is threadedly connected or interference-fitted with the connecting hole; and / or, The filter core structure further comprises a decorative strip, the decorative strip is located in the third mounting groove, and the outer side surface of the decorative strip is in the same plane as the opening of the third mounting groove; and / or, The connecting part of the clamping hole and the third mounting groove is provided with a second limiting protrusion, the second limiting protrusion is arranged around the inner wall of the clamping hole; one side of the second limiting protrusion abuts against the limiting block.
10. A water purification apparatus characterized by comprising: The filter core structure comprises any one of claims 1 to 9. The filter core structure comprises any one of claims 1 to 9.