Filter element structure and water purifier

Abstract

The present invention relates to a filter element structure and a water purifier. The filter element structure includes a shell, a cover body, an inner core component, a first adapter and a second adapter; the cover body is detachably mounted on the shell to cooperate with the shell to form a receiving chamber; the first adapter is fixed in the cover body, and the first adapter is detachably connected to the inner core component in the receiving chamber; the second adapter is slidably arranged between the cover body and the first adapter until it slides downward to form a water inlet channel with the cover body, and at the same time, a water outlet channel is formed between the first adapter and the cover body, the water inlet channel is connected to the water inlet end of the inner core component, and the water outlet channel is connected to the drainage end of the inner core component. The filter element structure can not only realize the function of filtering raw water, but also realize the user's self-cleaning of the inner core component, so as to achieve the purpose of repeated use and prolonging the service life of the filter element structure.

Description

Technical Field

[0001] The invention relates to the technical field of filtration, and in particular to a filter element structure and a water purifier. Background Art

[0002] Current water purifiers generally use multiple filter cartridges to perform multi-stage filtration of drinking water. After a period of use, each filter cartridge will fail to function properly due to excessive impurities attached. Therefore, the filter cartridges usually need to be replaced regularly, which increases the cost of using the water purifier. Summary of the invention

[0003] Based on this, it is necessary to provide a filter element structure and a water purifier to address the problem that the filter element needs to be replaced regularly, which increases the cost of using the water purifier.

[0004] A filter element structure, comprising: a housing, a cover, an inner core component, a first adapter and a second adapter;

[0005] The cover body is detachably mounted on the shell to cooperate with the shell to form a receiving cavity;

[0006] The first adapter is fixed in the cover body, and the first adapter is detachably connected to the inner core assembly located in the accommodating cavity;

[0007] The second adapter is slidably disposed between the cover body and the first adapter until it slides downward to form a water inlet channel with the cover body, and at the same time a water outlet channel is formed between the first adapter and the cover body, wherein the water inlet channel is connected to the water inlet end of the inner core component, and the water outlet channel is connected to the drainage end of the inner core component.

[0008] In one embodiment, the upper end of the first adapter is closed, and the lower end of the first adapter has an opening;

[0009] The lower end of the first adapter is fixed in the cover body, and the lower end of the first adapter is also connected to the inner core assembly;

[0010] The upper end side wall of the first adapter has at least one water outlet distributed along the circumferential direction, and the at least one water outlet can be exposed to the outside of the second adapter, so that the water outlet channel is formed between the first adapter and the cover body.

[0011] In one of the embodiments, a first step is provided in the cover body;

[0012] The outer diameter of the lower end of the first adapter is greater than the outer diameter of the upper end, and the lower end of the first adapter abuts against the lower surface of the first step;

[0013] A plurality of first clamping members distributed along the circumferential direction are provided at the connection between the lower end and the upper end of the first adapter, and each first clamping member is clamped on the upper surface of the first step.

[0014] In one embodiment, each of the first clamping members is configured as an inverted L-shaped block structure.

[0015] In one embodiment, at least one first sealing member is disposed between the first adapter and the second adapter along a vertical direction;

[0016] At least one second sealing member is arranged between the first adapter and the cover body along the vertical direction.

[0017] In one embodiment, at least one offset groove is circumferentially arranged on the inner wall of the cover body, and each offset groove is connected to the accommodating cavity;

[0018] The offset end of the second adapter is used to fit with the inner wall of the cover body when not pressed downward, and is used to slide to the at least one offset groove when pressed downward, so as to form the water inlet channel between the second adapter and the cover body.

[0019] In one embodiment, the second adapter comprises: an inner shell and an outer shell sleeved outside the lower end of the inner shell;

[0020] The outer shell constitutes the dislocation end of the second adapter;

[0021] The inner shell is used to fit with the outer wall of the water outlet end of the first adapter when the outer shell is not pressed downward, so that the inner cavity of the first adapter is separated from the inner cavity of the cover.

[0022] In one of the embodiments, at least one third sealing member is arranged on the outer wall of the outer shell at intervals in the vertical direction;

[0023] At least one fourth sealing member is arranged on the outer wall of the upper end of the inner shell at intervals in the vertical direction.

[0024] In one embodiment, at least one second clamping member is circumferentially arranged on the offset end of the second adapter;

[0025] The at least one second clamping member is used to clamp the second adapter member in the cover body when the second adapter member is pressed downward.

[0026] In one embodiment, the filter element structure further includes: a reset member abutting between the cover body and the second adapter;

[0027] The reset member is used to be in a compressed state when the second adapter is pressed downward.

[0028] In one embodiment, the return member is a spring.

[0029] In one embodiment, the inner core assembly comprises: a support shell, an inner core shell, an inner core, and a docking shell docked with the first adapter;

[0030] The inner core shell has at least one water inlet connected to the accommodating cavity;

[0031] The inner core shell is connected to the docking shell through the supporting shell;

[0032] The inner core is embedded in the installation cavity formed between the docking shell, the support shell and the inner core shell;

[0033] The docking housing has a drain port connected to the inner cavity of the first adapter.

[0034] In one of the embodiments, the support shell is snap-fitted to the inner core shell.

[0035] In one of the embodiments, an annular groove is provided on the outer wall of the support shell;

[0036] An annular clamping platform is provided on the inner wall of the inner core shell;

[0037] The annular clamping platform is clamped in the annular clamping groove.

[0038] A water purifier, comprising: the filter element structure described in any one of the above items, as well as a filter element clamp and a waterway plate;

[0039] The cover of the filter element structure is connected to the filter element clamp, and the second adapter of the filter element structure is pressed against the filter element clamp;

[0040] The filter element clamp cooperates with the waterway plate to form a raw water channel and a clean water channel that are separated from each other. The raw water channel is connected to the water inlet channel of the filter element structure, and the clean water channel is connected to the water outlet channel of the filter element structure.

[0041] As for the filter element structure and water purifier as described above, the second adapter of the filter element structure can be slidably arranged between the cover body and the first adapter until it slides downward to form a water inlet channel connected to the water inlet end of the inner core assembly between the cover body, and at the same time, a water outlet channel connected to the drainage end of the inner core assembly is formed between the first adapter and the cover body, so that the raw water can flow into the inner core assembly through the water inlet channel for filtration, and then be discharged through the water outlet channel after filtration; in addition, the cover body can be detachably covered on the shell, and the inner core assembly and the first adapter can be detachably connected, so that it is convenient for the user to remove the inner core assembly from the filter element structure, and the inner core assembly can be self-cleaned, so as to achieve the purpose of repeated use and prolonging the service life of the filter element structure. In summary, the filter element structure as described above can not only realize the function of filtering raw water, but also realize the self-cleaning of the inner core assembly by the user, so as to achieve the purpose of repeated use and prolonging the service life of the filter element structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 An exploded schematic diagram of a filter element structure without an inner core installed provided by an embodiment of the present invention;

[0043] Figure 2 A schematic diagram of the structure of a filter element provided by an embodiment of the present invention in an uninstalled state;

[0044] Figure 3 A schematic diagram of the structure of a filter element provided by an embodiment of the present invention in an installed state;

[0045] Figure 4 A schematic diagram of the assembly between a cover body, a first adapter and a second adapter provided in one embodiment of the present invention;

[0046] Figure 5 for Figure 2 A local enlarged schematic diagram at point A;

[0047] Figure 6 for Figure 3 A local enlarged schematic diagram at B;

[0048] Figure 7 A schematic diagram of the assembly between a filter element structure without a housing installed and a filter element clamp provided in one embodiment of the present invention;

[0049] Figure 8 A schematic structural diagram of a first adapter provided in one embodiment of the present invention;

[0050] Fig. 9 A schematic diagram of the structure of a second adapter provided in one embodiment of the present invention;

[0051] Fig.10 A schematic structural diagram of an inner core assembly provided by an embodiment of the present invention;

[0052] Fig.11 A schematic structural diagram of a cover body provided by an embodiment of the present invention;

[0053] Fig.12 A schematic structural diagram of a filter element assembly provided in one embodiment of the present invention.

[0054] The descriptions of the various reference numerals in the accompanying drawings are as follows:

[0055] 100-filter element structure, 110-housing, 120-cover body, 120a-dislocation groove, 121-first step, 122-second step, 123-inner cylinder, 124-outer cylinder, 130-inner core assembly, 131-support shell, 131a-annular groove, 132-inner core shell, 132a-water inlet, 1321-annular card platform, 133-inner core, 134-docking shell, 134a-drainage outlet, 140-first adapter, 140a-outlet Water inlet, 141-first clamping piece, 142-guide rib, 150-second adapter, 151-inner shell, 152-outer shell, 153-second clamping piece, 1531-connecting part, 1532-clamping protrusion, 161-first sealing piece, 162-second sealing piece, 163-third sealing piece, 164-fourth sealing piece, 165-fifth sealing piece, 166-sixth sealing piece, 167-seventh sealing piece, 170-resetting piece, 200-filter element clamp. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation described herein is only used to explain the present invention and is not intended to limit the present invention.

[0057] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. On the contrary, when an element is referred to as being "directly" connected to another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0058] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0059] On the one hand, an embodiment of the present invention provides a filter element structure 100, such as Figure 1 As shown, the filter element structure 100 includes: a housing 110, a cover 120, an inner core assembly 130, a first adapter 140 and a second adapter 150; Figure 2 and Figure 3 As shown, the cover 120 is detachably mounted on the housing 110 to cooperate with the housing 110 to form a receiving cavity; Figures 2 to 4 As shown, the first adapter 140 is fixed in the cover body 120, and the first adapter 140 is detachably connected to the inner core assembly 130 located in the accommodating cavity; Figures 2 to 6 As shown, the second adapter 150 can be slidably disposed between the cover body 120 and the first adapter 140 until it slides downward to form a water inlet channel between the cover body 120, and at the same time, a water outlet channel is formed between the first adapter 140 and the cover body 120, wherein the water inlet channel is connected to the water inlet end of the inner core assembly 130, and the water outlet channel is connected to the drainage end of the inner core assembly 130.

[0060] It should be noted that the filter element structure 100 of the present invention is connected to the filter element clamp 200 of the water purifier (see Figure 7 ) is connected to the waterway plate of the water purifier. The filter element card 200 cooperates with the waterway plate to form a raw water channel and a purified water channel separated from each other.

[0061] The working process and disassembly process of the filter element structure as described above are described below:

[0062] Before filtering the raw water, first clamp the filter element structure 100 on the filter element clamp 200 of the water purifier (see Figure 7 ), specifically: the cover body 120 of the filter element structure 100 is clamped with the filter element clamp 200, and the filter element clamp 200 is also pressed against the second adapter 150 to apply a downward extrusion force to the second adapter 150, so that the second adapter 150 slides downward, so that a water inlet channel is formed between the second adapter 150 and the cover body 120 (see Figure 3 and Figure 6), so that the water inlet end of the inner core assembly 130 is connected through the clean water channel and the raw water channel formed between the filter element card 200 and the waterway plate, and the water outlet end of the inner core assembly 130 is connected through the water outlet channel and the clean water channel formed between the filter element card 200 and the waterway plate. The raw water flows through the raw water channel and the water inlet channel formed between the filter element card 200 and the waterway plate in sequence, and enters the inner core assembly 130 from the water inlet end of the inner core assembly 130 for filtration. The clean water filtered by the inner core assembly 130 flows out from the water outlet end of the inner core assembly 130 and flows through the water outlet channel and the clean water channel formed between the filter element card 200 and the waterway plate in sequence, and is discharged.

[0063] Before cleaning the inner core assembly 130 of the filter element structure 100, first remove the outer shell 110 from the cover body 120, and then remove the inner core assembly 130 from the first adapter 140, so that the user can clean the inner core assembly 130 by himself, thereby achieving the purpose of repeated use and extending the service life of the filter element structure 100.

[0064] It can be seen that, in the filter element structure 100 as described above, the second adapter 150 can be slidably arranged between the cover body 120 and the first adapter 140 until it slides downward to form an inlet channel connected to the water inlet end of the inner core component 130 between the cover body 120, and at the same time, a water outlet channel connected to the discharge end of the inner core component 130 is formed between the first adapter 140 and the cover body 120, so that raw water can flow into the inner core component 130 through the inlet channel for filtration, and then be discharged through the outlet channel after filtration; in addition, the cover body 120 can be detachably covered on the outer shell 110, and the inner core component 130 and the first adapter 140 can be detachably connected, so that the user can remove the inner core component 130 from the filter element structure 100, and the inner core component 130 can be self-cleaned, so as to achieve the purpose of repeated use and extending the service life of the filter element structure 100. In summary, the filter element structure 100 described above can not only filter raw water, but also enable the user to clean the inner core component 130 by themselves, thereby achieving the purpose of repeated use and extending the service life of the filter element structure 100.

[0065] like Figures 1 to 4 As shown, in some embodiments of the present invention, the upper end of the first adapter 140 is closed, and the lower end of the first adapter has an opening; the lower end of the first adapter 140 is fixed in the cover body 120, and the lower end of the first adapter 40 is also connected to the inner core assembly 130; the upper end side wall of the first adapter 140 has at least one water outlet 140a distributed along the circumferential direction, and at least one water outlet 140a can be exposed to the outside of the second adapter 150, so as to form a water outlet channel between the first adapter 140 and the cover body 120.

[0066] It should be noted that the first adapter 140 has an inner cavity, and the inner cavity is communicated with its lower end and the water outlet 140a.

[0067] Optionally, the number of the water outlets 140a may be set to 4, and the 4 water outlets 140a may be evenly distributed along the circumferential direction.

[0068] Furthermore, if Figure 3 As shown, a first step 121 is provided in the cover body 120; the outer diameter of the lower end of the first adapter 140 is greater than the outer diameter of the upper end; the lower end of the first adapter 140 abuts against the lower surface of the first step 121; a plurality of first clamping members 141 distributed along the circumferential direction are provided at the connection between the lower end and the upper end of the first adapter 140 (see Figure 2 and Figure 8 ), each first clamping member 141 is clamped on the upper surface of the first step 121. The upper end of the first adapter 140 penetrates into the second adapter 150 from bottom to top until the first clamping member 141 is clamped on the upper surface of the first step 121, and at the same time, the lower end of the first adapter 140 abuts against the lower surface of the first step 121. The first step 121 in the cover body 120 can block the first clamping member 141 from moving downward, and can also block the lower end of the first adapter 140 from moving upward. In this way, the first adapter 140 can be fixed, and this fixing method is also convenient for the disassembly of the first adapter 140, which is conducive to the replacement of the first adapter 140.

[0069] Alternatively, if Figure 2 and Figure 8 As shown, the first clamping member 141 is configured as an inverted L-shaped block structure, wherein the side wall of the vertical portion of the first clamping member 141 is connected to the upper end of the first adapter 140 (e.g., integrally formed), and the bottom wall of the vertical portion is connected to the lower end top wall of the first adapter 140 (e.g., integrally formed).

[0070] Optionally, the number of the first clamping members 141 can be set to 2 or 3, and can be evenly distributed along the circumferential direction.

[0071] Further, in some embodiments of the present invention, Figure 4 As shown, at least one first seal 161 is disposed between the first adapter 140 and the second adapter 150 along the vertical direction; and at least one second seal 162 is disposed between the first adapter 140 and the cover 120 along the vertical direction. The first seal 161 is used to seal the gap between the first adapter 140 and the second adapter 150, and the second seal 162 is used to seal the gap between the first adapter 140 and the cover 120.

[0072] Specifically, at least one first mounting groove is opened at the upper end of the first adapter 140 along the vertical direction, and each first seal 161 is arranged in the corresponding first mounting groove; at least one second mounting groove is opened at the lower end of the first adapter 140 along the vertical direction, and each second seal 162 is arranged in the corresponding second mounting groove.

[0073] Optionally, the first sealing member 161 and the second sealing member 162 are rubber sealing rings.

[0074] Optionally, the number of the first sealing members 161 is set to two, and the two first sealing members 161 are located on the upper and lower sides of at least one water outlet 140a. It is understandable that the number of the first installation grooves is also set to two.

[0075] Optionally, the number of the second sealing member 162 is set to 1. It is understandable that the number of the second mounting groove is also set to 1.

[0076] Further, in some embodiments of the present invention, Figure 8 As shown, a plurality of guide ribs 142 are arranged at intervals along the circumferential direction on the outer wall of the upper end of the first adapter 140. The guide ribs 142 play a guiding role during the assembly process of the first adapter 140, so that the first adapter 140 can be quickly assembled into the second adapter 10.

[0077] Optionally, the number of the guide ribs 142 may be set to 4 to 6; in addition, some of the guide ribs 142 may be connected to the horizontal portion of the first clamping member 141 (eg, integrally formed).

[0078] like Figure 5 and Figure 6 As shown, in some embodiments of the present invention, at least one offset groove 120a is provided on the inner wall of the cover body 120 along the circumferential direction, and each offset groove 120a is communicated with the accommodating cavity; the offset end of the second adapter 150 is used to fit with the inner wall of the cover body 120 when not being squeezed, and is used to slide to at least one offset groove 120a when being squeezed downward, so as to form a water inlet channel between the second adapter 150 and the cover body 120. It can be understood that when the offset end of the second adapter 150 slides to at least one offset groove 120a, at least one water outlet 140a on the first adapter 140 is exposed to the outside of the second adapter 150.

[0079] Optionally, the number of the offset grooves 120a is set to 4, and the 4 offset grooves 120a are evenly distributed along the circumferential direction, and each offset groove 120a extends along the axial direction of the second adapter 150 until it is connected to the accommodating cavity.

[0080] Specifically in some embodiments of the present invention, Figure 4As shown, the second adapter 150 includes: an inner shell 151 and an outer shell 152 sleeved on the outer side of the lower end of the inner shell 151; the outer shell 152 constitutes the offset end of the second adapter 150; the inner shell 151 is used to fit with the outer wall of the water outlet end of the first adapter 140 when the outer shell 152 is not pressed downward, so that the inner cavity of the first adapter 140 is separated from the inner cavity of the cover body 120. It can be understood that the water outlet 140a of the first adapter 140 is opened on the water outlet end of the first adapter 140, and when the outer shell 152 slides downward to the offset groove 120a, the water outlet end of the first adapter 140 is exposed to the outside of the inner shell 151.

[0081] It should be noted that when the filter element structure 100 is installed on the filter element fixture 200, the first side wall cover of the filter element fixture 200 is installed on the cover body 120; the second side wall 220 of the filter element fixture 200 abuts against the top wall of the outer shell 152, and the second side wall of the filter element fixture 200 fits against the upper outer wall of the inner shell 151. The first side wall of the filter element fixture 200 surrounds the second side wall, and there is a gap between the first side wall and the second side wall.

[0082] Furthermore, if Figure 4 As shown, in some embodiments of the present invention, at least one third sealing member 163 is arranged at intervals along the vertical direction on the outer wall of the outer shell 152; at least one fourth sealing member 164 is arranged at intervals along the vertical direction on the outer wall of the inner shell 151. The third sealing member 163 is used to seal the gap between the outer shell 152 and the cover 120 when the outer shell 152 is not pressed downward; the fourth sealing member is used to seal the gap between the inner shell 151 and the second side wall of the filter element card 200.

[0083] Specifically, at least one third mounting groove is opened on the outer wall of the outer shell 152 in the vertical direction, and each third seal 163 is arranged in the corresponding third mounting groove; at least one fourth mounting groove is opened on the outer wall of the upper end of the inner shell 151 in the vertical direction, and each fourth seal 164 is arranged in the corresponding fourth mounting groove.

[0084] Optionally, the third sealing member 163 and the fourth sealing member 164 are rubber sealing rings.

[0085] Optionally, the number of the third sealing members 163 is set to 1, and it is understandable that the number of the third mounting grooves is also set to 1.

[0086] Optionally, the number of the fourth sealing members 164 is set to 2. It is understandable that the number of the fourth mounting grooves is also set to 2.

[0087] Further, in some embodiments of the present invention, Figure 4 and Fig. 9As shown, at least one second clamping member 153 is circumferentially arranged on the offset end of the second adapter 150; the at least one second clamping member 153 is used to clamp the second adapter 150 in the cover body 120 when the second adapter 150 is not pressed downward. It can be understood that the downward pressing force applied by the filter element clamp 200 to the second adapter 150 is greater than the clamping force applied by the at least one second clamping member 153 to the second adapter 150. The second clamping member 153 can support the second adapter 150 in the cover body 120, which is convenient for the filter element clamp 200 to apply downward pressing force to the second adapter 150, and is conducive to the opening of the water inlet channel and the water outlet channel of the filter element structure 100; in addition, the second clamping member 150 also facilitates the installation of the second adapter 150 and its removal from the cover body 120.

[0088] Optionally, the number of the second clamping members 153 is set to 4, and the 4 second clamping members 153 are evenly distributed along the circumferential direction.

[0089] Alternatively, if Figure 2 As shown, the cover body 120 is provided with a second step 122 inside, and the second step 122 is provided with through holes at intervals along the circumferential direction, and each through hole is connected to the corresponding offset groove 120a; Fig. 9 As shown, each second clamping member 153 includes: a connecting portion 1531 connected to the offset end of the second adapter 150 and extending in a direction close to the inner core assembly 130, and a clamping protrusion 1532 connected to the free end of the connecting portion 1531, and the clamping protrusion 1532 passes through the corresponding through hole on the second step 122 and is clamped on the second step 122.

[0090] Optionally, the clamping protrusion 1532 is a right-angled trapezoidal structure, and the bottom wall of the right-angled trapezoidal structure is pressed against the lower surface of the second step 122 .

[0091] In some embodiments of the present invention, Figures 1 to 4 As shown, the filter element structure 100 further includes: a reset member 170 abutting between the cover body 120 and the second adapter 150, and the reset member 170 is used to be in a compressed state when the second adapter 150 is pressed downward. After the filter element structure 100 is removed from the filter element clamp 200, the reset member 170 is reset to push the second adapter 150 upward, so that the water inlet channel and the water outlet channel of the filter element structure 100 are both closed (see Figure 2 and Figure 5 ), so that when the filter element structure 100 is installed on the filter element clamp 200 again, the filter element clamp 200 can effectively press the second adapter 150 downward.

[0092] In some embodiments of the present invention, the reset member 170 is a spring, wherein the spring is made of food-grade stainless steel.

[0093] Alternatively, if Figure 2 As shown, the upper end of the reset member 170 is pressed against the top wall of the outer shell 152 of the second adapter 150 , and the lower end of the reset member 170 is pressed against the second step 122 of the cover 120 .

[0094] like Figure 1 , Figure 2 , Figure 3 and Fig.10 As shown, in some embodiments of the present invention, the inner core assembly 130 includes: a support shell 131, an inner core shell 132, an inner core 133 and a docking shell 134 docked with the first adapter 140; the inner core shell 132 has at least one water inlet 132a connected to the accommodating cavity; the inner core shell 132 is connected to the docking shell 134 through the support shell 131; the inner core 133 is embedded in the installation cavity formed between the docking shell 134, the support shell 131 and the inner core shell 132; the docking shell 134 has a drain port 134a connected to the inner cavity of the first adapter 140. It can be understood that the water inlet 132a of the inner core shell 132 is opened at the water inlet end of the inner core assembly 130, and the drain port 134a of the inner core shell 132 constitutes the drain end of the inner core assembly 130.

[0095] Optionally, a plurality of water inlet groups are uniformly arranged along the circumferential direction, and each group of water inlets 132a is distributed along the axial direction of the inner core shell 132. For example, the number of water inlets 132a is set to 4, and the number of water inlets 132a in each group is set to 2.

[0096] Optionally, the supporting shell 131 may be connected to the docking shell 134 via colloid.

[0097] Furthermore, the inner core shell 132 is snap-fitted to the support shell 131 , which facilitates installation and disassembly of the inner core shell 132 .

[0098] Specifically in some embodiments of the present invention, Fig.10 As shown, an annular clamping groove 131a is provided on the outer wall of the support shell 131; an annular clamping platform 1321 is provided on the inner wall of the inner core shell 132; and the annular clamping platform 1321 is clamped in the annular clamping groove 131a.

[0099] Optionally, when the annular clamping platform 1321 is clamped in the annular clamping groove 131a, there is a gap between the annular clamping platform 1321 and the annular clamping groove 131a, so that the annular clamping platform 1321 is easily removed from the annular clamping groove 131a.

[0100] like Figure 4As shown, in some embodiments of the present invention, the cover body 120 includes: an inner cylinder 123, an outer cylinder 124 sleeved on the outside of the lower end of the inner cylinder 123; the outer cylinder 124 is connected to the filter element clamp 200 and the outer shell 110; the first adapter 140 is fixed in the inner cylinder 123; the second adapter 150 is slidably arranged between the inner cylinder 123 and the first adapter 140.

[0101] Optionally, the outer cylinder 124 is clamped with the filter element clamp 200. The top wall of the outer cylinder 124 is provided with a clamping buckle (see Fig.11 and Fig.12 ).

[0102] Optionally, the outer cylinder 124 is threadedly connected to the outer shell 110. The outer wall of the outer cylinder 124 is provided with threads, and the inner wall of the outer shell 110 is provided with threads that match the threads on the outer wall of the outer cylinder 124. Alternatively, the outer cylinder 124 is snap-fitted to the outer shell 110. The outer wall of the outer cylinder 124 is provided with a plurality of snap-fitting buckles at intervals along the circumferential direction, and the inner wall of the outer shell 110 is provided with a plurality of slots at intervals along the circumferential direction, and each snap-fitting buckle is snap-fitted into a corresponding slot.

[0103] Alternatively, if Figure 4 As shown, at least one fifth sealing member 165 is arranged between the outer cylinder 124 and the housing 110 in the vertical direction, and at least one sixth sealing member 166 is arranged between the inner cylinder 123 and the filter element holder 200 in the vertical direction. The fifth sealing member 165 is used to seal the gap between the outer cylinder 124 and the housing 110, and the sixth sealing member 166 is used to seal the gap between the inner cylinder 123 and the filter element holder 200.

[0104] Optionally, the fifth sealing member 165 and the sixth sealing member 166 are sealing rubber rings.

[0105] Optionally, at least one fifth mounting groove (for example, 2) is arranged on the outer wall of the outer cylinder 124 at intervals in the vertical direction, and the fifth seal 165 is installed in the corresponding fifth mounting groove; at least one sixth mounting groove is arranged on the outer wall of the inner cylinder 123 at intervals in the vertical direction, and the sixth seal 166 is installed in the corresponding sixth mounting groove (for example, 2).

[0106] Further, in some embodiments of the present invention, Figure 2As shown, a first step 121 is provided on the inner wall of the lower end of the inner cylinder 123, and a second step 122 is provided on the outer wall of the lower end of the inner cylinder 123, and the second step 122 is located above the first step 121; the lower end of the first adapter 140 is abutted against the lower surface of the first step 121, and each first clamping member 141 is clamped on the upper surface of the first step 121; the second step 122 is provided with through holes at intervals along the circumferential direction, and each through hole is connected to the corresponding offset groove 120a, and the clamping protrusion 1532 of each second clamping member 153 passes through the corresponding through hole on the second step 122 and is clamped on the second step 122.

[0107] Further, in some embodiments of the present invention, Fig.10 As shown, at least one seventh sealing member 167 is disposed between the inner cylinder 123 and the inner core shell 132 along the vertical direction. The seventh sealing member 167 is used to seal the gap between the inner cylinder 123 and the docking shell 134.

[0108] Optionally, the seventh sealing member 167 is a sealing rubber ring.

[0109] Optionally, at least one seventh installation groove (for example, two) is arranged on the outer wall of the docking shell 134 at intervals in the vertical direction, and the seventh sealing member 167 is installed in the corresponding seventh installation groove.

[0110] On the other hand, an embodiment of the present invention provides a water purifier, which includes: a filter element structure 100 as described in any of the above items, a filter element clamp 200, and a waterway plate; the cover body 120 of the filter element structure 100 is connected to the filter element clamp 200, and the second adapter 150 of the filter element structure 100 is squeezed against the filter element clamp 200; the filter element clamp 200 and the waterway plate cooperate to form a separated raw water channel and a clean water channel, the raw water channel is connected to the water inlet channel of the filter element structure 100, and the clean water channel is connected to the water outlet channel of the filter element structure 100.

[0111] It can be seen that, in the water purifier as described above, the second adapter 150 of the filter element structure 100 can be slidably arranged between the cover body 120 and the first adapter 140, until it slides downward to form an inlet channel connected to the water inlet end of the inner core assembly 130 between the cover body 120, and at the same time, a water outlet channel connected to the discharge end of the inner core assembly 130 is formed between the first adapter 140 and the cover body 120, so that raw water can flow into the inner core assembly 130 through the inlet channel for filtration, and then be discharged through the outlet channel after filtration; in addition, the cover body 120 can be detachably covered on the outer shell 110, and the inner core assembly 130 and the first adapter 140 can be detachably connected, so that the user can remove the inner core assembly 130 from the filter element structure 100, and the inner core assembly 130 can be self-cleaned, so as to achieve the purpose of repeated use and extending the service life of the filter element structure 100. In summary, the water purifier as described above can not only filter raw water, but also enable the user to clean the inner core component 130 by themselves, so as to achieve the purpose of repeated use and extend the service life of the filter element structure 100.

[0112] The water purifier involved in the present invention is not limited to being used for ultrafiltration water purifier products, but can also be used for reverse osmosis water purifiers, drinking water purifiers and other water purification products.

[0113] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0114] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A filter element structure, characterized in that: The filter element structure (100) comprises: an outer shell (110), a cover body (120), an inner core component (130), a first adapter (140) and a second adapter (150); The cover body (120) is detachably mounted on the outer shell (110) to cooperate with the outer shell (110) to form a receiving cavity; The first adapter (140) is fixed in the cover body (120), and the first adapter (140) is detachably connected to the inner core assembly (130) located in the accommodating cavity; The second adapter (150) is slidably disposed between the cover body (120) and the first adapter (140) until it slides downward to form a water inlet channel with the cover body (120), and at the same time, a water outlet channel is formed between the first adapter (140) and the cover body (120), wherein the water inlet channel is communicated with the water inlet end of the inner core component (130), and the water outlet channel is communicated with the water discharge end of the inner core component (130), the upper end of the first adapter (140) is closed, and the lower end of the first adapter (140) has an opening; The lower end of the first adapter (140) is fixed in the cover body (120), and the lower end of the first adapter (140) is also connected to the inner core component (130); The upper end side wall of the first adapter (140) is provided with at least one water outlet (140a) distributed along the circumferential direction, and the at least one water outlet (140a) can be exposed to the outside of the second adapter (150) so as to form the water outlet channel between the first adapter (140) and the cover body (120).

2. The filter element structure according to claim 1, characterized in that: A first step (121) is provided in the cover body (120); The outer diameter of the lower end of the first adapter (140) is greater than the outer diameter of the upper end, and the lower end of the first adapter (140) abuts against the lower surface of the first step (121); A plurality of first clamping members (141) distributed along the circumferential direction are provided at the connection between the lower end and the upper end of the first adapter member (140), and each first clamping member (141) is clamped on the upper surface of the first step (121).

3. The filter element structure according to claim 2, characterized in that: Each of the first clamping members (141) is configured as an inverted L-shaped block structure.

4. The filter element structure according to any one of claims 1 to 3, characterized in that: At least one first sealing member (161) is arranged between the first adapter (140) and the second adapter (150) at intervals in the vertical direction; At least one second sealing member (162) is arranged between the first adapter (140) and the cover body (120) at intervals in the vertical direction.

5. The filter element structure according to claim 1, characterized in that: At least one offset groove (120a) is provided on the inner wall of the cover body (120) along the circumferential direction, and each offset groove (120a) is communicated with the accommodating cavity; The offset end of the second adapter (150) is used to fit with the inner wall of the cover body (120) when not being pressed downward, and is used to slide to the at least one offset groove (120a) when being pressed downward, so as to form the water inlet channel between the second adapter (150) and the cover body (120).

6. The filter element structure according to claim 5, characterized in that: The second adapter (150) comprises: an inner shell (151) and an outer shell (152) sleeved on the outside of the lower end of the inner shell (151); The outer shell (152) constitutes the offset end of the second adapter (150); The inner shell (151) is used to fit with the outer wall of the water outlet end of the first adapter (140) when the outer shell (152) is not pressed downward, so that the inner cavity of the first adapter (140) is separated from the inner cavity of the cover body (120).

7. The filter element structure according to claim 6, characterized in that: At least one third sealing member (163) is arranged at intervals along the vertical direction on the outer wall of the outer shell (152); At least one fourth sealing member (164) is arranged at intervals along the vertical direction on the outer wall of the upper end of the inner shell (151).

8. The filter element structure according to any one of claims 5 to 7, characterized in that: At least one second clamping member (153) is circumferentially arranged on the offset end of the second adapter member (150); The at least one second clamping member (153) is used to clamp the second adapter member (150) in the cover body (120) when the second adapter member (150) is not pressed downward.

9. The filter element structure according to claim 1, characterized in that: The filter element structure (100) further comprises: a reset member (170) abutting between the cover body (120) and the second adapter member (150); The reset member (170) is used to be in a compressed state when the second adapter member (150) is pressed downward.

10. The filter element structure according to claim 9, characterized in that: The reset element (170) is a spring.

11. The filter element structure according to claim 1, characterized in that: The inner core assembly (130) comprises: a supporting shell (131), an inner core shell (132), an inner core (133), and a docking shell (134) docked with the first adapter (140); The inner core shell (132) has at least one water inlet (132a) communicating with the accommodating cavity; the inner core shell (132) is connected to the docking shell (134) via the supporting shell (131); The inner core (133) is embedded in a mounting cavity formed between the docking shell (134), the supporting shell (131) and the inner core shell (132); The docking shell (134) has a drainage port (134a) that is in communication with the inner cavity of the first adapter (140).

12. The filter element structure according to claim 11, characterized in that: The support shell (131) is snap-connected with the inner core shell (132).

13. The filter element structure according to claim 12, characterized in that: An annular groove (131a) is provided on the outer wall of the supporting shell (131); An annular clamping platform (1321) is provided on the inner wall of the inner core shell (132); The annular clamping platform (1321) is clamped in the annular clamping groove (131a).

14. A water purifier, characterized in that: The water purifier comprises: the filter element structure (100) according to any one of claims 1 to 13, as well as a filter element clamp (200) and a waterway plate; The cover body (120) of the filter element structure (100) is connected to the filter element clamp (200), and the second adapter (150) of the filter element structure (100) is pressed against the filter element clamp (200); The filter element clamp (200) cooperates with the waterway plate to form a raw water channel and a clean water channel that are separated from each other; the raw water channel is connected to the water inlet channel of the filter element structure (100), and the clean water channel is connected to the water outlet channel of the filter element structure (100).

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