Filter element convenient to disassemble and assemble, filter element disassembling and assembling structure and water purifying and drinking machine

Abstract

The utility model relates to a filter element convenient to disassemble and assemble, a filter element disassembly and assembly structure and a water purifying and drinking machine, and is applied to the field of water purifying and drinking machines. The filter element comprises a filter element main body, a splicing part is arranged at the end part of the filter element main body, an embedding block and / or an embedding groove are / is arranged on the surface of the splicing part, and the embedding block and the embedding groove are / is used for being connected with another filter element main body, so that another filter element can drive the filter element to rotate. According to the filter element, the splicing part on the old filter element and the splicing part on the new filter element are mutually embedded, so that the new filter element can serve as a wrench to unscrew the old filter element in the replacement process of the old filter element, enough operation space is provided for a hand, the replacement convenience of the filter element is improved, and the replacement efficiency of the filter element is improved. And the filter element can be easily replaced without increasing the size of the machine and the number of parts.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water purifying machines, in particular to a filter cartridge convenient to disassemble and assemble, a filter cartridge disassembly and assembly structure and a water purifying machine. BACKGROUND

[0002] With the aggravation of water pollution and the improvement of people's living standards, the requirement for water quality is also getting higher and higher. Water purification equipment has entered many ordinary families and become an important aspect of improving home life quality. Among them, the filter cartridge is an important filtering component of most water purification equipment. The filter cartridge is a consumable during use and needs to be taken out and replaced after a period of use.

[0003] In the related art, desktop water purifying machines are more favored by consumers because of their installation-free and free placement. The desktop water purifying machine is generally small in size, and the operation space left for hands when replacing the filter cartridge is limited. In addition, there is a certain pressure between the filter cartridge and the machine body after the filter cartridge is watered, which causes the filter cartridge to rotate and makes it difficult to replace, thereby affecting the replacement efficiency of the filter cartridge. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a filter cartridge convenient to disassemble and assemble, a filter cartridge disassembly and assembly structure and a water purifying machine to solve the problem that the operation space for replacing the filter cartridge is limited, which causes difficulty in replacing the filter cartridge.

[0005] In a first aspect, the present application provides a filter cartridge convenient to disassemble and assemble, which adopts the following technical solution:

[0006] A filter cartridge structure convenient to disassemble and assemble includes a filter cartridge main body, an end of the filter cartridge main body is provided with a split part, the surface of the split part is provided with an embedded block and / or an embedded groove, the embedded block and the embedded groove are used to connect another filter cartridge main body, so that another filter cartridge can drive the filter cartridge to rotate.

[0007] In one of the embodiments, the embedded block or the embedded groove is coaxially arranged with the filter cartridge main body; the embedded block is used to be embedded in another filter cartridge main body along a first direction, the projection of the embedded block on a reference surface is non-circular, and the first direction is perpendicular to the reference surface; or, the embedded groove is used to be embedded in another filter cartridge main body along a first direction, the projection of the embedded groove on a reference surface is non-circular, and the first direction is perpendicular to the reference surface.

[0008] In one of the embodiments, the embedded block or the embedded groove is eccentrically arranged with the filter cartridge main body.

[0009] In one of the embodiments, a plurality of embedded blocks are arranged, all the embedded blocks are arranged along the circumference of the filter cartridge main body, and the embedded groove is defined between adjacent two embedded blocks.

[0010] In a second aspect, the present application provides a filter cartridge dismounting structure, which adopts the following technical scheme:

[0011] The filter cartridge dismounting structure comprises at least two filter cartridges, and the two filter cartridges are combined through the combination parts, so that one of the filter cartridges can drive the other filter cartridge to rotate through the combination of the two combination parts.

[0012] In one embodiment, the combination part of one of the filter cartridges has the embedding block, and the combination part of the other filter cartridge has the embedding slot, and the embedding block can be adapted to be embedded in the embedding slot in the first direction; or, the combination part of each of the filter cartridges has a plurality of embedding blocks arranged along the circumference of the filter cartridge, and the embedding slots are defined between adjacent two embedding blocks, and the embedding blocks on the filter cartridge are configured to be adapted to be embedded in the embedding slots on the other filter cartridge in the first direction.

[0013] In a third aspect, the present application provides a water purifying machine, which adopts the following technical scheme:

[0014] The water purifying machine comprises a machine body, a filter cartridge seat and the filter cartridge convenient to dismount, the machine body comprises a mounting hole extending in a first direction; the filter cartridge seat is arranged at the bottom of the mounting hole; the filter cartridge is rotatably installed on the filter cartridge seat and has mounting positions and dismounting positions arranged along the first direction; and the other filter cartridge can be embedded in the filter cartridge in the first direction and drive the filter cartridge to rotate, so that the filter cartridge is switched between the mounting positions and the dismounting positions.

[0015] In one embodiment, the end of the filter cartridge is provided with a guide block, and the filter cartridge seat is provided with a guide rail, the guide rail is arranged in a spiral shape along the first direction, and the guide block is slidably installed on the guide rail.

[0016] In one embodiment, the water purifying machine further comprises a stopper arranged on the filter cartridge seat, the stopper is located at the end of the guide rail, and when the filter cartridge is rotated from the dismounting position to the mounting position, the guide block abuts against the stopper to prevent the filter cartridge from continuing to rotate.

[0017] In one embodiment, the guide block has a limiting gap, the stopper has a limiting protrusion, and after the filter cartridge reaches the mounting position, the limiting protrusion is adapted to be embedded in the limiting gap to limit the rotation of the filter cartridge.

[0018] The filter core convenient to disassemble, through the mutual embedding of the split parts on the old filter core and the new filter core, enables the new filter core to act as a wrench and unscrew the old filter core during the replacement of the old filter core, thereby providing sufficient operation space for the hands to improve the convenience of filter core replacement, and enabling the filter core to be replaced easily without increasing the machine volume and the number of parts. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure diagram of the first split part in an embodiment of the present application.

[0020] Figure 2 The structure diagram of the second split part in an embodiment of the present application.

[0021] Figure 3 The assembly diagram of the filter core when the first filter core is in the installed position in an embodiment of the present application.

[0022] Figure 4 The assembly diagram of the filter core when the first filter core is in the disassembled position in an embodiment of the present application.

[0023] Figure 5 The structure diagram of the first split part in another embodiment of the present application.

[0024] Figure 6 The structure diagram of the second split part in another embodiment of the present application.

[0025] Figure 7 The assembly diagram of the filter core when the first filter core is in the installed position in another embodiment of the present application.

[0026] Figure 8 The assembly diagram of the filter core when the first filter core is in the disassembled position in another embodiment of the present application.

[0027] Figure 9 The state diagram of the filter core replacement in an embodiment of the present application.

[0028] Figure 10 The assembly diagram of the filter core and the filter core seat in an embodiment of the present application.

[0029] Figure 11 The exploded view of the filter core and the filter core seat in an embodiment of the present application.

[0030] Figure 12 The Figure 10 The enlarged view of part A.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 1, first filter core; 11, first split part; 111, fitting block; 112, first boss; 113, accommodating interval; 2, second filter core; 21, second split part; 211, fitting groove; 212, second boss; 3, machine body; 31, mounting hole; 4, filter core seat; 5, guide block; 51, limiting notch; 6, guide rail; 61, limiting protrusion; 7, stopper; F1, first direction; V1, reference surface. DETAILED DESCRIPTION

[0033] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific embodiments described herein, and it is understood that similar improvements can be made by those skilled in the art without departing from the scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0035] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0036] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In this application, unless otherwise explicitly specified and limited, if there is a description such as "on" or "under" or the like between a first feature and a second feature, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature can be "below", "under" and "under" the second feature, which can be directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0038] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation. Among them, the "first direction" can be the axial direction of the first filter element or the second filter element, and the "reference surface" can be a reference surface perpendicular to the central axis of the first filter element or the second filter element.

[0039] In modern water purification equipment, the installation and replacement of filter elements are operations that users often need to perform. In order to improve the installation efficiency and reliability of the filter element, it is particularly important to design a filter element structure that is convenient to install and replace. The present application proposes an innovative filter element splicing structure, which realizes accurate splicing and positioning between filter elements through unique boss design, ensuring the stability and reliability of the filter elements during installation and use.

[0040] The following will be described in detail with reference to the accompanying drawings Figures 1-12 Further detailed description of the embodiments of the present application.

[0041] Reference will be made to Figures 1 to 4 As shown in the drawings, Figure 1 A structure diagram of a first splicing part in an embodiment of the present application is shown, Figure 2 A structure diagram of a second splicing part in an embodiment of the present application is shown, Figure 3 An assembly diagram of the filter element when the first filter element is in the installation position in an embodiment of the present application is shown, Figure 4 An assembly diagram of the filter element when the first filter element is in the disassembly position in an embodiment of the present application is shown.

[0042] An embodiment of the present application provides a filter element convenient to disassemble and assemble, which comprises a filter element main body and a split part arranged at an end of the filter element main body, and the split part is provided with an embedded block 111 and / or an embedded groove 211. The embedded block 111 and the embedded groove 211 are used to connect another filter element main body, so that the other filter element main body can drive the filter element to rotate, the filter element to be replaced is taken out, and a new filter element is installed, thereby realizing the disassembly and assembly of the filter element in a small space.

[0043] In some embodiments, an embodiment of the present application also provides a filter element disassembly and assembly structure, which comprises at least two filter elements shown in the above embodiments used in cooperation, and the two filter elements are split by split parts, so that one of the filter elements can drive the other filter element to rotate by cooperation of the two split parts. During the rotation, the filter element at the rear end can serve as a wrench to drive the filter element at the front end to rotate axially, and the filter element at the front end is unscrewed, thereby providing sufficient operation space for the hands of a user and improving the convenience of filter element replacement.

[0044] In the embodiments of the present application, for the convenience of description, the two filter elements used in cooperation are respectively named as a first filter element 1 and a second filter element 2. The first filter element 1 represents an old filter element to be disassembled and installed in a mounting hole 31 of a machine body 3, and the second filter element 2 represents a new filter element to be replaced. The structures of other components on the first filter element 1 and the second filter element 2 are completely the same except the split parts.

[0045] Specifically, the tail of the first filter element 1 is provided with a first split part 11, and the tail of the second filter element 2 is provided with a second split part 21. When the first filter element 1 needs to be disassembled, the second split part 21 can be embedded in the first split part 11, so that the second filter element 2 can drive the first filter element 1 to rotate by cooperation of the second split part 21 and the first split part 11, thereby realizing the disassembly operation of the first filter element 1.

[0046] In the embodiments of the present application, during the replacement of the filter element, the second split part 21 at the tail of the second filter element 2 and the first split part 11 at the tail of the first filter element 1 are embedded in each other, so that the second filter element 2 can serve as a wrench to drive the first filter element 1 to rotate axially, and the first filter element 1 is unscrewed, thereby providing sufficient operation space for the hands of a user and improving the convenience of filter element replacement.

[0047] Continuing to refer to Figures 1 to 4 In some embodiments, the first split part 11 comprises an embedded block 111 arranged at the tail of the first filter element 1, the second split part 21 comprises an embedded groove 211 arranged at the tail of the second filter element 2, along a first direction F1, the embedded block 111 can be embedded in the embedded groove 211, so that the second filter element 2 can drive the first filter element 1 to rotate by cooperation of the first split part 11 and the second split part 21.

[0048] In the embodiments of the present application, the fitting block 111 is coaxially arranged with the first filter element 1, and the projection of the fitting block 111 on the reference surface V1 is configured as a non-circular shape. Referring to FIGS. 1, 2 and 3, in some embodiments, the fitting block 111 is configured as a waist shape, the fitting groove 211 is configured as a waist-shaped groove matching the shape of the fitting groove 211, and after the fitting block 111 is fitted into the fitting groove 211, the second filter element 2 can drive the first filter element 1 to rotate as a wrench to disassemble the first filter element 1. Figure 1 and Figure 2 In some embodiments, the fitting block 111 is configured as a waist shape, the fitting groove 211 is configured as a waist-shaped groove matching the shape of the fitting groove 211, and after the fitting block 111 is fitted into the fitting groove 211, the second filter element 2 can drive the first filter element 1 to rotate as a wrench to disassemble the first filter element 1.

[0049] In other embodiments, the fitting block 111 can be configured as a triangular shape, an elliptical shape, a square shape, a wavy shape, or any other non-circular shape, as long as the fitting block 111 does not slip during the rotation of the second filter element 2 after being fitted into the fitting groove 211. The specific shape of the fitting block 111 is not limited in the present application.

[0050] In other embodiments, the fitting block 111 is eccentrically arranged with the first filter element 1, and the fitting block 111 can be configured as any shape. After the tail of the second filter element 2 and the tail of the first filter element 1 are fitted together, the tail of the second filter element 2 is inserted into the mounting hole 31 of the body 3, and the sidewall of the second filter element 2 abuts against the hole wall of the mounting hole 31. The radial movement of the second filter element 2 is limited, which can effectively prevent the second filter element 2 from slipping with the first filter element 1 during rotation, thereby smoothly driving the first filter element 1 to rotate synchronously.

[0051] Referring to FIGS. 1, 2 and 3, Figures 5 to 8 Figure 5 FIG. 4 shows a structural schematic diagram of the first fitting part in another embodiment of the present application, Figure 6 FIG. 5 shows a structural schematic diagram of the second fitting part in another embodiment of the present application, Figure 7 FIG. 6 shows an assembly schematic diagram of the filter elements when the first filter element is in the mounted position in another embodiment of the present application, Figure 8 FIG. 7 shows an assembly schematic diagram of the filter elements when the first filter element is in the disassembled position in another embodiment of the present application.

[0052] In some embodiments, the first fitting part 11 includes a plurality of first bosses 112 spaced along the first filter element 1, and the second fitting part 21 includes a plurality of second bosses 212 spaced along the circumference of the second filter element 2. Preferably, all the first bosses 112 are uniformly distributed along the circumference of the first filter element 1, and all the second bosses 212 are uniformly distributed along the circumference of the second filter element 2. Any two adjacent first bosses 112 define an accommodation interval 113, and the second boss 212 is correspondingly arranged in the accommodation interval 113. The second boss 212 is configured to be fitted into the accommodation interval 113 along the first direction F1 to realize the mutual fitting between the first fitting part 11 and the second fitting part 21. ​

[0053] As shown in Figures 5 to 8 In the embodiments of the present application, each first split part 11 includes two first bosses 112 arranged symmetrically, each second split part 21 includes two second bosses 212 arranged symmetrically, and the two first bosses 112 define a receiving interval 113 for the second boss 212 to fit into, and the second boss 212 can be fitted into the receiving interval 113 one by one along the first direction F1 to realize the mutual fitting of the first split part 11 and the second split part 21.

[0054] In other embodiments, the first split part 11 includes three or more first bosses 112, and all the first bosses 112 are uniformly distributed along the circumference of the first filter element 1, the second split part 21 includes the same number of second bosses 212, and all the second bosses 212 are uniformly distributed along the circumference of the second filter element 2, any two adjacent first bosses 112 define a receiving interval 113 for the second boss 212 to fit into, and the second boss 212 can be fitted into the receiving interval 113 one by one along the first direction F1 to realize the mutual fitting of the first split part 11 and the second split part 21.

[0055] Specifically, along the radial direction of the first filter element 1, the circumferential size of the first boss 112 decreases; similarly, along the radial direction of the second filter element 2, the circumferential size of the second boss 212 also decreases. After the first split part 11 and the second split part 21 are fitted into each other, the force generated during the rotation of the filter element can be evenly distributed among the multiple first bosses 112 and second bosses 212, and the stress is more uniform, so that the connection stability between the first filter element 1 and the second filter element 2 is improved, and the phenomenon of slipping is avoided.

[0056] When the first filter element 1 needs to be disassembled, the user only needs to fit the first split part 11 at the tail of the second filter element 2 into the second split part 21 at the tail of the first filter element 1 along the first direction F1, and the first boss 112 and the second boss 212 are spaced along the circumference of the first filter element 1, so that the second filter element 2 can drive the first filter element 1 to rotate by means of the mutual fitting of the first split part 11 and the second split part 21, so as to disassemble the first filter element 1.

[0057] The filter element structure convenient for disassembly in a small space described above, through the mutual fitting of the first split part 11 and the second split part 21 at the tail of the first filter element 1 and the second filter element 2, the second filter element 2 can act as a wrench to unscrew the first filter element 1 during the replacement of the first filter element 1, thereby providing sufficient operating space for the hands, improving the convenience of filter element replacement, and also allowing the filter element to be replaced easily without increasing the volume and the number of parts of the machine, so as to ensure the miniaturization and light weight of the whole machine.

[0058] As shown in Figures 1 to 12 ,Figure 9 Fig. 1 shows a state diagram of the filter core replacement in an embodiment of the present application, Figure 10 Fig. 2 shows an assembly diagram of the filter core and the filter core seat in an embodiment of the present application, Figure 11 Fig. 3 shows an exploded view of the filter core and the filter core seat in an embodiment of the present application.

[0059] In some embodiments, the present application further provides a water purifier, in particular a small desktop water purifier, which has a small body and is suitable for installation in a small space. The water purifier has the characteristics of installation-free and free placement. The water purifier comprises a body 3, the top of the body 3 is provided with a mounting hole 31 for mounting the filter core, the mounting hole 31 extends along a first direction F1, and the first filter core 1 or the second filter core 2 can be inserted into the mounting hole 31 along the first direction F1.

[0060] In some embodiments, the water purifier further comprises a cover (not shown), which is installed at the mounting hole 31 on the top of the body 3, and is used to block the mounting hole 31 after the filter core is installed, so as to prevent dust and impurities from entering the mounting hole 31 through the opening of the mounting hole 31 and polluting the filter core.

[0061] Specifically, the water purifier further comprises a filter core seat 4 arranged in the body 3 and located at the bottom of the mounting hole 31, and the filter core can be inserted into the mounting hole 31 along the first direction F1 and installed in the filter core seat 4. In the embodiment of the present application, along the first direction F1, the first filter core 1 has a spaced arrangement of mounting position and dismounting position, wherein the mounting position is configured to be hidden in the mounting hole 31, and the dismounting position is configured to protrude out of the mounting hole 31.

[0062] When the filter core needs to be replaced, the user first opens the cover to expose the first filter core 1 to be replaced, and then unpacks the second filter core 2 to be assembled, and splices the second splicing part 21 at the tail of the second filter core 2 to the first splicing part 11 at the tail of the first filter core 1 along the first direction F1, so that the second filter core 2 and the first filter core 1 are embedded in each other in the first direction F1, and the second filter core 2 can drive the first filter core 1 to rotate by means of the mutual cooperation of the first splicing part 11 and the second splicing part 21, so that the first filter core 1 is switched from the mounting position to the dismounting position, so as to facilitate the user to pull out the first filter core 1 outside the body 3.

[0063] When assembling a new filter element, the user first installs the second filter element 2 into the mounting hole 31 along the first direction F1. Then, the user attaches the first splicing part 11 at the tail of the disassembled first filter element 1 to the second splicing part 21 at the tail of the second filter element 2 along the first direction F1, so that the first filter element 1 and the second filter element 2 are re-fitted in the first direction F1. The first filter element 1 can drive the second filter element 2 to rotate with the cooperation of the first splicing part 11 and the second splicing part 21, so that the second filter element 2 can be smoothly moved from the disassembled position outside the mounting hole 31 to the installation position, thus completing the assembly of the new filter element. After the new filter element is assembled, the user puts the cover back on to seal the mounting hole 31, thereby keeping the inside of the body 3 clean.

[0064] In some other embodiments, the ends of the first filter element 1 and the second filter element 2 are provided with guide blocks 5, and the filter element seat 4 is provided with guide rails 6. The guide rails 6 are configured to be spirally arranged along the first direction F1. The guide blocks 5 can be slidably installed on the guide rails 6 so that the first filter element 1 or the second filter element 2 can be switched between the installation position and the disassembly position.

[0065] Furthermore, in some embodiments, the water purifier also includes a stop member 7 disposed inside the filter cartridge holder 4, the stop member 7 being located at the end of the guide rail 6. When the first filter cartridge 1 or the second filter cartridge 2 rotates from the disassembled position to the installed position, the top end of the guide block 5 abuts against the stop member 7 to prevent the first filter cartridge 1 or the second filter cartridge 2 from continuing to rotate toward the bottom of the mounting hole 31.

[0066] In this embodiment, the side wall of the filter element seat 4 is provided with a side opening that extends radially through the bottom end of the guide rail 6. The stop member 7 is installed at the side opening of the filter element seat 4. The stop member 7 has a stop surface located at the end of the side opening away from the guide rail 6 and is configured to abut against the top of the guide block 5 to limit the guide block 5 from continuing to slide.

[0067] Combination Figure 12 As shown, Figure 12 It shows Figure 10 Enlarged view of part A. Specifically, during the filter element assembly process, the guide block 5 on the first filter element 1 or the second filter element 2 rotates from the disassembly position to the installation position under the guidance of the guide rail 6. When the first filter element 1 or the second filter element 2 rotates to the installation position, the guide block 5 slides into the side opening under the guidance of the guide rail 6. The top of the guide block 5 abuts against the stop surface of the stop member 7 to prevent the guide block 5 from continuing to slide forward, thereby preventing the filter element from continuing to rotate, thus achieving the limitation of the filter element in the forward direction.

[0068] In some other embodiments, the guide block 5 is provided with a limiting gap 51, and the stopper 7 is provided with a limiting protrusion 61 matched with the limiting gap 51. After the first filter element 1 or the second filter element 2 is rotated to the installation position, the limiting protrusion 61 is matched and embedded in the limiting gap 51, so that the guide block 5 on the first filter element 1 or the second filter element 2 interferes with the stopper 7 on the mounting seat, thereby limiting the axial rotation of the first filter element 1 or the second filter element 2, avoiding reverse rotation of the first filter element 1 or the second filter element 2 after being assembled to the installation position, and ensuring the stability of the filter element assembly.

[0069] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in contradictions.

[0070] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A filter cartridge which is easy to disassemble, characterized by comprising: The filter core body is provided with a split part at the end thereof, and the split part is provided with a fitting block and / or a fitting groove for connecting another filter core body so that another filter core can drive the filter core to rotate.

2. The easy-to-remove filter cartridge of claim 1, wherein The fitting block or the fitting groove is coaxially arranged with the filter core body. The fitting block is used for fitting into another filter core body along a first direction, and a projection of the fitting block on a reference surface is non-circular, and the first direction is perpendicular to the reference surface; or The fitting groove is used for fitting into another filter core body along a first direction, and a projection of the fitting groove on a reference surface is non-circular, and the first direction is perpendicular to the reference surface.

3. The easy-to-remove filter cartridge of claim 1, wherein The fitting block or the fitting groove is eccentrically arranged with the filter core body.

4. The easy-to-remove filter cartridge of claim 1, wherein The fitting block is provided with a plurality of fitting blocks, and all the fitting blocks are arranged along the circumference of the filter core body, and the fitting grooves are defined between adjacent fitting blocks.

5. A filter cartridge dismounting structure characterized by comprising: At least two filter cores as claimed in any one of claims 1-4 are split by the split parts so that one of the filter cores can drive another filter core to rotate by cooperation of the two split parts.

6. The filter cartridge removal structure according to claim 5, characterized by The split part of one of the filter cores has the fitting block, and the split part of another filter core has the fitting groove, and the fitting block can be fitted into the fitting groove along the first direction; or The split part of each filter core has a plurality of fitting blocks arranged along the circumference of the filter core, and the fitting grooves are defined between adjacent fitting blocks, and the fitting blocks on the filter core are configured to be fitted into the fitting grooves on another filter core along the first direction.

7. A water purification machine characterized by It comprises: a machine body comprising a mounting hole extending along a first direction; a filter core seat arranged at the bottom of the mounting hole; and a filter core as claimed in any one of claims 1-4, which is rotatably mounted on the filter core seat and has mounting positions and dismounting positions arranged along the first direction; and another filter core can be fitted into the filter core along the first direction to drive the filter core to rotate so that the filter core is switched between the mounting positions and the dismounting positions. The end of the filter core is provided with a guide block, and the filter core seat is provided with a guide rail arranged in a spiral shape along the first direction, and the guide block is slidably mounted on the guide rail.

8. The POU water purifier according to claim 7, wherein, The water purifier further comprises a stopper arranged on the filter core seat, and the stopper is located at the end of the guide rail, and when the filter core is rotated from the dismounting position to the mounting position, the guide block abuts against the stopper to prevent the filter core from continuing to rotate.

9. The POU water purifier according to claim 8, wherein, The guide block is provided with a limiting gap, and the stopper is provided with a limiting protrusion, and when the filter core reaches the mounting position, the limiting protrusion is fitted into the limiting gap to limit the rotation of the filter core.

10. The POU water purifier according to claim 9, wherein, ​

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