Filter element and water purifier

Abstract

The utility model relates to a filter element and a water purifier. A filter element includes: a filter member having a filter portion for filtration; the decorative cover is arranged at one axial end of the filtering part, and the decorative cover and the filtering part are connected, locked, unlocked and separated through a locking mechanism; the locking mechanism comprises a rotating groove and a rotary buckle, one of the rotating groove and the rotary buckle is arranged on the filtering part, the other one of the rotating groove and the rotary buckle is arranged on the decorative cover, and the filtering part and the decorative cover are configured to rotate relatively, so that the rotary buckle is screwed into or withdrawn from the rotating groove in the circumferential direction of the filtering part; the multiple sets of locking mechanisms are arranged in an array mode in the circumferential direction of the filtering component, and at least two sets of locking mechanisms are arranged at different positions in the radial direction of the filtering component. According to the filter element and the water purifier, the use cost can be reduced while the requirement of a user for the attractiveness of the water purifier can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water purifiers, in particular to a filter element and a water purifier. BACKGROUND

[0002] With the improvement of living standards, people's requirements for water quality are gradually increasing, which makes the application of water purifiers more widespread. Among them, the water purification function of the water purifier is mainly realized through the filter element. Usually, one end of the filter element is exposed outside the water purifier shell. In order to improve the aesthetics of the water purifier, some manufacturers will design multiple filter elements with different end colors, so that users can choose and replace according to personal preferences. However, such design can meet the needs of users for aesthetics, but it will also increase the use cost of users, which is not cost-effective. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a filter element and a water purifier which can meet the needs of users for the aesthetics of the water purifier while reducing the use cost.

[0004] A filter element, comprising:

[0005] a filter component having a filter part for filtering; and

[0006] a decorative cover arranged at one axial end of the filter component, the decorative cover being connected and locked or unlocked and separated with the filter component through a locking mechanism;

[0007] The locking mechanism comprises a rotating groove and a rotating buckle, one of the rotating groove and the rotating buckle is arranged on the filter component, and the other is arranged on the decorative cover, the filter component and the decorative cover are configured to rotate relative to each other, so that the rotating buckle is rotated into or out of the rotating groove along the circumferential direction of the filter component;

[0008] A plurality of groups of the locking mechanism are arranged in an array along the circumferential direction of the filter component, and at least two groups of the locking mechanism are arranged at different positions in the radial direction of the filter component.

[0009] In some embodiments, the rotating buckles in the at least two groups of the locking mechanism are different in distance from the central axis of the filter element.

[0010] In some embodiments, the at least two groups of the locking mechanism are spaced along the circumferential direction of the filter component.

[0011] In some embodiments, the plurality of groups of the locking mechanism are uniformly spaced along the circumferential direction of the filter component.

[0012] In some embodiments, the rotating groove and the rotating buckle are both arc-shaped and extend along the circumferential direction of the filter component.

[0013] In some embodiments, the inner diameters of the two rotating knobs in the two groups of locking mechanisms differ by 1-5 mm.

[0014] In some embodiments, the rotating groove gradually decreases in size along the axial direction of the filter component in the screwing direction of the rotating knob.

[0015] In some embodiments, the rotating knob has a first guide slope opposite to the groove wall of the rotating groove at the front end region in the screwing direction of the rotating knob, and the distance between the first guide slope and the groove wall gradually increases in the screwing direction.

[0016] In some embodiments, the rotating knob has the first guide slope at both ends along the axial direction of the filter component.

[0017] In some embodiments, the rotating groove is arranged on the filter component, and the rotating knob is arranged on the decorative cover.

[0018] In some embodiments, the filter component comprises an end cover fixedly arranged at one end of the filter component, and the decorative cover is arranged at the end of the end cover away from the filter component.

[0019] The rotating groove is arranged on the end cover, and the rotating knob is arranged on the decorative cover.

[0020] In some embodiments, the end cover comprises an end cover body connected to the filter component, and a boss protruding from the end of the end cover body away from the filter component, and a part of the boss is recessed towards the end away from the end cover body to form the rotating groove, and the entrance side of the rotating groove is provided with a receiving cavity in communication therewith, the receiving cavity penetrates the boss along the axial direction of the filter component, and the rotating knob can be screwed into the rotating groove through the receiving cavity.

[0021] In some embodiments, the rotating knobs in the at least two groups of locking mechanisms are different in distance from the central axis of the filter element, and the at least two receiving cavities are different in distance from the central axis of the filter element.

[0022] In some embodiments, the rotating groove and the receiving cavity are arranged on the outer edge of the boss, so that the rotating groove and the receiving cavity are both open on the outside.

[0023] In some embodiments, the decorative cover comprises a decorative cover end plate and a decorative cover side plate extending from the decorative cover end plate towards the end cover, the decorative cover side plate can be sleeved outside the boss, and the inner wall of the decorative cover side plate is in contact with the outer wall of the boss.

[0024] In some embodiments, the rotating buckle comprises a connecting arm and a rotating arm, the connecting arm extends from the decorative cover end plate towards the end cap side; the rotating arm extends from one end of the connecting arm away from the decorative cover end plate towards one side of the connecting arm, the rotating arm is configured to be rotated into or out of the rotating groove along the circumference of the filter component.

[0025] In some embodiments, the filter cartridge further comprises:

[0026] a positioning mechanism connected to the decorative cover; and

[0027] a handle rotatably connected to the decorative cover, so that the handle has a holding state and a storage state;

[0028] The positioning mechanism can exert an elastic force on the handle to keep the handle in the holding state by abutting against the decorative cover; the positioning mechanism can exert an elastic force on the handle to keep the handle in the storage state by abutting against the decorative cover.

[0029] In some embodiments, the handle has a first positioning surface and a second positioning surface; the positioning mechanism comprises a top block elastically connected to the decorative cover; when the handle is rotated to the first positioning surface facing the top block, the top block elastically abuts against the first positioning surface to make the handle abut against the decorative cover; when the handle is rotated to the second positioning surface facing the top block, the top block elastically abuts against the second positioning surface to make the handle abut against the decorative cover.

[0030] In some embodiments, the handle has a connected holding part and a rotating part, the rotating part is rotatably connected to the decorative cover, and the rotating part has the first positioning surface and the second positioning surface; when the rotating part is rotated to the first positioning surface facing the top block, the top block elastically abuts against the first positioning surface to exert an elastic force on the holding part tending to be upright until the holding part abuts against the decorative cover; when the rotating part is rotated to the second positioning surface facing the top block, the top block elastically abuts against the second positioning surface to exert an elastic force on the holding part tending to be horizontal until the holding part abuts against the decorative cover.

[0031] In some embodiments, the top block has a positioning inclined surface, the first positioning surface and the second positioning surface are adjacently arranged and form an acute angle therebetween; when the rotating part is rotated to the first positioning surface facing the top block, the positioning inclined surface elastically abuts against the first positioning surface and their inclining directions are the same; when the rotating part is rotated to the second positioning surface facing the top block, the positioning inclined surface elastically abuts against the second positioning surface and their inclining directions are the same.

[0032] In some embodiments, the positioning slope includes a first slope portion and a second slope portion with different inclination angles; when the rotating portion is rotated to the first positioning surface facing the top block, the first slope portion elastically abuts against the first positioning surface; when the rotating portion is rotated to the second positioning surface facing the top block, the second slope portion elastically abuts against the second positioning surface.

[0033] In some embodiments, the first positioning surface and the second positioning surface are connected by a transition surface with a round corner.

[0034] In some embodiments, the positioning mechanism includes a positioning elastic member, two ends of the positioning elastic member are respectively connected to the top block and the decorative cover, the rotating portion is located on a side of the top block away from the positioning elastic member, and the positioning elastic member is configured to always apply an elastic force to the top block to abut against the rotating portion.

[0035] In some embodiments, the rotating portion includes a rotating shaft rotatably connected to the decorative cover, and a cam coaxially connected to the rotating shaft, the first positioning surface and the second positioning surface are both located on the cam, and the top block always elastically abuts against the cam during rotation of the rotating shaft.

[0036] In some embodiments, the filter element includes a stop member connected to the decorative cover, in the holding state, the stop member is inserted into the end cover along the axial direction of the filter element to inhibit relative rotation between the end cover and the decorative cover.

[0037] In some embodiments, the end cover has a stop hole, in the holding state, the stop member is inserted into the stop hole, and in the storage state, the stop member is withdrawn from the stop hole.

[0038] In some embodiments, a plurality of sets of the stop member and a plurality of sets of the stop hole are arranged in pairs.

[0039] In some embodiments, the stop member and the stop hole have a circular cross-sectional shape, and the stop hole is located on the end cover away from a rotation center of relative rotation between the end cover and the decorative cover.

[0040] Alternatively, the stop member and the stop hole have a polygonal, elliptical, semicircular, or multi-semicircular cross-sectional shape.

[0041] In some embodiments, when the handle is switched from the storage state to the holding state, the stop member is moved along the axial direction of the filter element towards the end cover by abutting against the handle and is inserted into the end cover, and when the handle is switched from the holding state to the storage state, the stop member is separated from the end cover.

[0042] In some embodiments, the stopper is elastically connected to the decorative cover, and when the handle is switched to the holding state, the stopper extends out of the end cover against the elastic force; and when the handle is switched to the storage state, the stopper is driven to retract by the elastic force.

[0043] In some embodiments, the filter element comprises a stopper elastic member sleeved outside the stopper, and two ends of the stopper elastic member abut against the stopper and the decorative cover respectively.

[0044] In some embodiments, the decorative cover has a stopper mounting hole, and in the holding state, the stopper partially extends out of the stopper mounting hole, and in the storage state, the stopper retracts into the stopper mounting hole.

[0045] In some embodiments, a hole wall of the stopper mounting hole is convexly provided with two first stopper bosses arranged along the axial direction of the filter element, and the stopper comprises a stopper main body and a second stopper boss convexly provided on an outer wall of the stopper main body, and the two first stopper bosses are used to block the second stopper boss to limit the movement stroke of the stopper.

[0046] In some embodiments, a first protrusion is convexly provided on a groove wall of the rotation groove towards the inside of the groove, and a second protrusion is convexly provided on the rotating buckle, and after the rotating buckle is rotated into the rotation groove, the second protrusion is located on a side of the first protrusion away from the entrance of the rotation groove, and an end of the first protrusion away from the entrance of the rotation groove abuts against an end of the second protrusion close to the entrance of the rotation groove.

[0047] In some embodiments, the end of the first protrusion away from the entrance of the rotation groove is a first stop surface inclined relative to the axial direction of the filter element, the end of the second protrusion close to the entrance of the rotation groove is a second stop surface inclined relative to the axial direction of the filter element, and the first stop surface is parallel to the second stop surface.

[0048] In some embodiments, two groups of the locking mechanisms are arranged along the circumferential direction of the filter component, and in the two groups of the locking mechanisms, the rotating buckle and the rotation groove of at least one group having a larger radial dimension are respectively provided with the second protrusion and the first protrusion correspondingly.

[0049] A water purifier, comprising the filter element described above.

[0050] In some embodiments, the filter element comprises a filter element body, and the water purifier further comprises:

[0051] a machine body configured with a receiving cavity having an opening, and the filter element body is plugged into the receiving cavity through the opening;

[0052] The locking assembly comprises a lock catch connected to the body; the lock catch has a blocking position and an unlocking position; when the lock catch is in the blocking position, a stop portion of the lock catch is arranged on the pull-out path of the filter element body relative to the accommodating cavity; when the lock catch is in the unlocking position, the stop portion of the lock catch is away from the pull-out path relative to the position in the blocking position.

[0053] In some embodiments, the water purifier further comprises a trigger configured to drive the lock catch to switch from the blocking position to the unlocking position.

[0054] In some embodiments, the locking assembly further comprises a first elastic member configured to always apply an elastic force to the lock catch to keep the lock catch in the blocking position; the trigger is configured to drive the lock catch to overcome the elastic force to switch the lock catch from the blocking position to the unlocking position.

[0055] In some embodiments, the lock catch is rotationally connected to the body about a first axis and is switched between the blocking position and the unlocking position by rotation;

[0056] The lock catch is provided with a protruding portion on the side facing the filter element to form the stop portion;

[0057] When the lock catch is rotated to the blocking position, the protruding portion is arranged on the pull-out path; when the lock catch is rotated to the unlocking position, the protruding portion is away from the pull-out path relative to the position in the blocking position.

[0058] In some embodiments, the water purifier further comprises a scratch-preventing member configured to apply a force to the lock catch to limit the movement of the stop portion of the lock catch towards the pull-out path when the lock catch is switched to the unlocking position, so that the lock catch is kept in the unlocking position.

[0059] In some embodiments, the scratch-preventing member is further configured to be located on the side of the lock catch away from the pull-out path when the lock catch is in the blocking position.

[0060] In some embodiments, the scratch-preventing member is used to move in the pull-out direction of the filter element body when the lock catch is rotated to the position where the stop portion of the lock catch is away from the pull-out path, and is arranged on the side of the lock catch facing the pull-out path, so that the lock catch is kept in the unlocking position.

[0061] In some embodiments, further comprising: an ejector arranged in the accommodating cavity, the ejector being used to eject the scratch-preventing member in the pull-out direction when the filter element moves in the pull-out direction.

[0062] In some embodiments, the water purifier further comprises a second elastic member and an elastic member positioning seat;

[0063] The elastic member positioning seat is connected to the accommodating cavity;

[0064] The second elastic member is connected between the ejector and the elastic member positioning seat, and is used to always apply an elastic force to the ejector away from the elastic member positioning seat.

[0065] In some embodiments, the water purifier further comprises an ejector assembly, which comprises an ejector arranged in the accommodating cavity, and the ejector is used to move from a first position to a second position along the pulling-out direction of the filter element when the lock rotates to the position where the stop portion just leaves the pulling-out path, so as to eject the filter element along the pulling-out direction;

[0066] The ejector assembly comprises a pull rod, which is connected to the ejector and extends through the accommodating cavity towards the lock;

[0067] When the ejector is in the second position, the pull rod abuts against the lock, so that the lock is kept in the unlocked position;

[0068] The pull rod forms the scratch-proof member.

[0069] In some embodiments, the water purifier comprises a hollow body, and a first filter element, a second filter element and a third filter element arranged in parallel in the body; the first filter element, the second filter element and the third filter element are sequentially connected and are all cylindrical; the diameter of the second filter element is greater than or equal to the diameters of the first filter element and the third filter element;

[0070] The first filter element and the third filter element are arranged in sequence and are spaced apart along a left-right direction; the second filter element is located above the first filter element and the third filter element;

[0071] In a top-bottom direction, a lowermost point D1 of the second filter element is arranged lower than uppermost points C1 and E1 of the first filter element and the third filter element, and is arranged higher than axes O1 and O3 of the first filter element and the third filter element;

[0072] In the left-right direction, a leftmost point D2 of the second filter element is arranged to the left of the axis O1 of the first filter element, and a rightmost point D3 of the second filter element is arranged to the right of the axis O3 of the third filter element; the top-bottom direction, the left-right direction and the axis O1 of the first filter element are perpendicular to each other.

[0073] In some embodiments, the distance d1 between the axis O1 of the first filter element and the axis O2 of the second filter element, and the distance d2 between the axis O3 of the third filter element and the axis O2 of the second filter element satisfy: d1=d2.

[0074] In some embodiments, the water purifier further comprises:

[0075] a body configured with a receiving cavity having an opening, the filter element being pluggable with the receiving cavity through the opening; and

[0076] a pull ring connected to an inner wall of the receiving cavity, an insertion direction end of the filter element being insertable into the pull ring;

[0077] wherein one side of the pull ring facing the insertion direction end of the filter element is provided with a guide slope inclined to a radial outer side of the pull ring, to guide the insertion of the insertion direction end of the filter element;

[0078] The pull ring is configured to be movable along the insertion direction of the filter element, so as to be driven by the insertion operation of the filter element and moved a certain distance along the insertion direction.

[0079] In some embodiments, an end of the insertion direction of the filter element is configured as a reduced diameter end to form a shoulder structure on the filter element; at least part of the surface profile of the inner peripheral side of the pull ring matches the outer peripheral profile of the reduced diameter end;

[0080] The shoulder structure is used to drive the pull ring to move in the insertion direction within the receiving cavity when the filter element is contacted to the pull ring during the insertion process.

[0081] In some embodiments, the pull ring further comprises a circumferential matching surface connected to the guide slope, the guide slope and the circumferential matching surface jointly defining the surface of the inner peripheral side of the pull ring;

[0082] An end surface of the shoulder structure facing the guide slope is configured as a slope surface capable of being in contact with the guide slope, and the circumferential matching surface is in contact with the outer peripheral surface of the reduced diameter end.

[0083] The aforementioned filter cartridge and water purifier feature separate filter components and decorative covers. These components can be locked together by rotating relative to each other, causing a buckle to engage with the rotating groove; or by rotating in opposite directions, the buckle to disengage, unlocking the filter component and decorative cover. Therefore, manufacturers can design and manufacture decorative covers of different colors and shapes. Users can simply replace the decorative cover according to their personal preferences to achieve personalization and aesthetics without replacing the entire filter cartridge, thus reducing operating costs while satisfying individual needs and enhancing aesthetics. Furthermore, the simultaneous locking mechanism enhances the stability of the connection between the filter component and decorative cover, preventing them from easily coming loose. Additionally, at least two locking mechanisms are positioned differently in the radial direction of the filter component, providing reverse-direction error prevention during installation and ensuring ease of installation. Attached Figure Description

[0084] Figure 1 This is a schematic diagram of the structure of a water purifier provided in an embodiment of this application.

[0085] Figure 2 This is an exploded view of the water purifier provided in an embodiment of this application.

[0086] Figure 3 This is an exploded structural diagram of the water purifier body provided in the embodiments of this application.

[0087] Figure 4 for Figure 3 A magnified view of a portion at point A.

[0088] Figure 5a This is a schematic diagram showing the interaction between the filter body and the ejector assembly in the filter assembly provided in the embodiments of this application.

[0089] Figure 5b This is a cross-sectional view of the pull ring in the filter assembly provided in this application embodiment.

[0090] Figure 6a This is a cross-sectional view of the filter body and the ejector assembly in the filter assembly provided in the embodiments of this application.

[0091] Figure 6b This is a cross-sectional view of the accommodating cavity in the filter assembly provided in the embodiments of this application.

[0092] Figure 7 for Figure 6a A magnified view of a portion of point B.

[0093] Figure 8 This is a cross-sectional view of the filter body and the ejector assembly in the filter assembly provided in the embodiments of this application.

[0094] Figure 9 This is a schematic diagram of the lock in the unlocked position of the filter assembly provided in the embodiment of this application.

[0095] Figure 10a This is a schematic diagram of another structure of the latch in the filter assembly provided in the embodiments of this application.

[0096] Figure 10b for Figure 10a A schematic diagram of the locking mechanism and the lever working together in another structure.

[0097] Figure 11 This is a structural diagram of the latch and decorative cover in the disassembled state of the filter assembly provided in the embodiments of this application.

[0098] Figure 12 This is a schematic diagram of the structure of the filter element assembly provided in the embodiments of this application when the latch is in the unlocked position and the blocking position.

[0099] Figure 13 This is a front view of the water purifier provided in an embodiment of this application.

[0100] Figure 14a This is a cross-sectional view of the main body of the filter assembly provided in the embodiments of this application.

[0101] Figure 14b This is a schematic diagram of the structure of the filter element in the filter element assembly provided in the embodiments of this application.

[0102] Figure 15a This is an exploded structural diagram of the main body of the filter element assembly provided in the embodiments of this application from another angle.

[0103] Figure 15b This is a schematic diagram showing the layout of the components inside the casing of the water purifier provided in the embodiments of this application.

[0104] Figure 15c This is a schematic diagram showing the layout of the components inside the casing of the water purifier provided in this embodiment of the application from another angle.

[0105] Figure 16 This is a schematic diagram of a handle, decorative cover, and end cap in one embodiment of this application (handle upright).

[0106] Figure 17 This is a schematic diagram of the handle, decorative cover, and end cap in one embodiment of this application (handle laid flat).

[0107] Figure 18 for Figure 16 A cross-sectional view of the structure shown.

[0108] Figure 19 for Figure 17 A cross-sectional view of the structure shown.

[0109] Figure 20 Fig. 2 is a schematic view of a decorative cover and a handle in an embodiment of the present application (close-up view of the end cover side).

[0110] Figure 21 Fig. 3 is a schematic view of the internal structure of a decorative cover in an embodiment of the present application (fixing plate omitted).

[0111] Figure 22 Fig. 4 is a schematic view of a rotating portion in an embodiment of the present application.

[0112] Figure 23 Fig. 5 is a schematic view of a fixing plate, a handle, and a rotating portion in an embodiment of the present application.

[0113] Figure 24 Fig. 6 is a sectional view of a decorative cover, a rotating portion, and an end cover in an embodiment of the present application.

[0114] Figure 25 Fig. 7 is a schematic view of an end cover in an embodiment of the present application.

[0115] Figure 26 Fig. 8 is a partial sectional view of the connection between a decorative cover and an end cover in an embodiment of the present application.

[0116] Figure 27 Fig. 9 is a schematic view of a handle, a rotating portion, and a stopper in an embodiment of the present application.

[0117] Figure 28 Fig. 10 is a schematic view of a stopper, a stopper elastic member, and a rotating portion in an embodiment of the present application (handle upright).

[0118] Figure 29 Fig. 11 is a sectional view of a handle, a decorative cover, and a stopper in an embodiment of the present application (handle laid flat).

[0119] Figure 30 Fig. 12 is a sectional view of a handle, a decorative cover, and a stopper in an embodiment of the present application (handle upright).

[0120] Figure 31 Fig. 13 is a partial enlarged view of a stopper in an embodiment of the present application. Figure 30 Fig. 14 is a partial enlarged view of a stopper in an embodiment of the present application.

[0121] Figure 32 Fig. 15 is a partial enlarged view of a rotating portion in an embodiment of the present application.

[0122] Figure 33 Fig. 16 is a sectional view of a rotating portion after a rotating knob is rotated into a rotating groove in an embodiment of the present application.

[0123] Reference signs:

[0124] 1000, water purifier;

[0125] 1, filter element assembly;

[0126] 10, filter core; 100, filter core body; 101, necked part; 1011, shoulder structure; 1012, fool-proof groove; 1001, first limiting groove; 10011, stop groove wall; 1002, second limiting groove; 11, first filter core; 12, second filter core; 103, third filter core;

[0127] 110, filtering part;

[0128] 120, end cap; 121, end cap body; 122, boss; 1221, stop hole; 123, rotating groove; 1231, first protrusion; 12311, first stop surface; 1232, second guide-in slope; 124, accommodating cavity;

[0129] 13, mounting shell; 130, decorative cover; 131, locking body; 1311, top block guide groove; 1312, receiving groove; 132, fixing plate; 1321, stop piece mounting hole; 13211, first stop boss; 133, protruding piece; 1331, rotating groove; 134, screw knob; 1341, connecting arm; 1342, screwing-in arm; 1343, first guide-in slope; 1344, second protrusion; 13441, second stop surface; 135, decorative cover end plate; 136, decorative cover side plate; 1371, first blocking surface; 1372, second blocking surface;

[0130] 140, positioning mechanism; 141, top block; 1411, positioning slope; 14111, first slope part; 14112, second slope part; 142, positioning elastic piece;

[0131] 151, stop piece; 1511, stop piece body; 1512, second stop boss; 152, stop elastic piece;

[0132] 2, trigger piece; 200, handle; 201, gripping part; 2011, first limiting surface; 2012, second limiting surface; 202, rotating part; 203, rotating shaft; 2031, pushing piece; 20311, pushing body; 20312, pushing part; 204, positioning block; 205, cam; 206, first positioning surface; 207, second positioning surface; 208, transition surface;

[0133] 20, body; 21, accommodating cavity; 2101, first cavity section; 2102, second cavity section; 213, guide groove; 2131, first limiting wall; 22, body main body; 221, first filter core frame; 222, second filter core frame; 223, third filter core frame; 224, bottom plate; 2240, second matching valve; 2241, first matching valve; 2200, inner recess structure; 23, end plate; 230, clamping wall; 231, first filter core inlet and outlet; 232, second filter core inlet and outlet; 233, third filter core inlet and outlet; 234, connecting structure; 24, pressing plate; 241, avoiding opening; 25, side plate;

[0134] 30, locking assembly; 31, lock catch; 310, protruding part; 3101, first guide inclined surface; 3102, second guide inclined surface; 3103, pushing part; 3104, second abutting surface; 3105, first abutting surface; 311, hinged shaft; 312, hinged hole; 313, abutting section; 314, rotation connecting section; 3141, hinged arm; 32, first elastic member;

[0135] 50, ejection assembly; 51, ejector; 510, pull ring; 5100, circumferential matching surface; 5101, guide inclined surface; 511, guide ear; 5111, through hole; 512, inner wall; 513, guide wall; 514, outer wall; 515, reinforcing rib; 52, pull rod; 520, guide hole; 521, limiting ring; 53, second elastic member; 54, elastic member positioning seat;

[0136] 2', diaphragm pump; 3, pipeline; 4, clean water tank; 5, hot water container; 6, shell; 7, booster pump; 8, heater;

[0137] C1, uppermost point of the first filter core; O1, axis of the first filter core; D1, lowermost point of the second filter core; D2, leftmost point of the second filter core; D3, rightmost point of the second filter core; O2, axis of the second filter core; E1, uppermost point of the third filter core; O3, axis of the third filter core. DETAILED DESCRIPTION

[0138] In order to make the above objectives, features and advantages of the present application more apparent and comprehensible, the specific embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0139] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, 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 application and simplifying the description, and do not indicate or imply 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 a limitation on the application.

[0140] In addition, if there are these terms "first", "second", 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 technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0141] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. 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 explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0142] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be 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 "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0143] It is to be noted that if an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intervening element. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used herein are for the purpose of illustration only and do not indicate the only orientation of the embodiments.

[0144] The filter cartridge assembly and the water purifier according to the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0145] In combination Figure 1 and Figure 14a 、 Figure 14b , the water purifier 100 according to the embodiments of the present application comprises a housing 6 and a filter cartridge assembly 1 arranged in the housing 6. The filter cartridge assembly 1 can be located at the bottom of the housing 6, so that the center of gravity of the whole machine is relatively low and the machine is not easy to fall over.

[0146] The water purifier 100 further comprises a diaphragm pump 2', a purified water tank 4, a hot water container 5 and other components arranged in the housing 6. The purified water tank 4 is connected to the filter cartridge assembly 1, and the filtered water in the filter cartridge assembly 1 enters the purified water tank 4. In addition, the purified water tank 4 is in communication with the inlet of the diaphragm pump 2' through a pipeline 3, and the outlet of the diaphragm pump 2' is also connected to a heater arranged in communication with the hot water container 5 through the pipeline 3. In this way, the water in the purified water tank 4 is drawn into the heater by the diaphragm pump 2' for heating, and the heated water enters the hot water container 5 after being heated.

[0147] The filter cartridge assembly 1 will be described below in conjunction with the accompanying drawings.

[0148] With reference to Figure 2 , the filter cartridge assembly 1 according to the embodiments of the present application comprises a filter cartridge 10, a machine body 20, a locking assembly 30 and a trigger 2.

[0149] The filter cartridge 10 comprises a filter cartridge body 100. The machine body 20 is configured with a receiving cavity 21 having an opening, the filter cartridge 10, for example the filter cartridge body 100, is plug-in fitted with the receiving cavity 21 through the opening, and the end of the filter cartridge body 100 along its insertion direction and the corresponding position of the receiving cavity 21 are respectively provided with a first fitting valve 2141 and a second fitting valve 2240 capable of being plug-in fitted with each other. The locking assembly 30 comprises a lock catch 31 connected to the machine body 20. The lock catch 31 has a blocking position (state on the upper side of the drawing) and an unlocking position (state on the lower side of the drawing). Figure 2 Figure 2 ​The lock catch 31 corresponding to the filter element 10 located at the uppermost side of the water purifier in the lower side of the national map is in the unlocking position. When the lock catch 31 is in the blocking position, the stop portion of the lock catch 31 is arranged on the pull-out path of the filter element body 100 relative to the accommodation cavity 21. When the lock catch 31 is in the unlocking position, the stop portion of the lock catch 31 is away from the pull-out path relative to the blocking position. The trigger 2 is configured to drive the lock catch 31 to switch from the blocking position to the unlocking position.

[0150] The stop portion of the lock catch 31 is arranged on the pull-out path of the filter element body 100 relative to the accommodation cavity 21, which means that the stop portion is located in front of the filter element body 100 along the pull-out direction. When the filter element body 100 has a moving trend along the pull-out direction relative to the accommodation cavity 21, the filter element body 100 abuts against the stop portion and cannot be pulled out. The pull-out path can specifically refer to the space region passed through by the filter element body 100 from the beginning of pulling out to the end of pulling out. The end of pulling out means that the tail of the filter element body 100 completely separates from the accommodation cavity 21.

[0151] Through the plug-in cooperation of the filter element body 100 with the accommodation cavity 21 through the opening, the end of the filter element body 100 along the self-insertion direction and the corresponding position of the accommodation cavity 21 are respectively provided with the first cooperation valve 2141 and the second cooperation valve 2240 which can be plugged together, so that when the filter element 10 is inserted into the accommodation cavity 21 through the opening, the first cooperation valve 2141 and the second cooperation valve 2240 can be plugged together to realize cooperation. When the filter element 10 is pulled out from the accommodation cavity 21, the plug-in cooperation of the first cooperation valve 2141 and the second cooperation valve 2240 can be released, in other words, the filter element 10 and the accommodation cavity 21 in the present application are installed in a straight insertion mode, and the plug-in cooperation or disconnection of the first cooperation valve 2141 and the second cooperation valve 2240 of the filter element 10 and the accommodation cavity 21 can be completed by inserting or pulling out the filter element 10 along one direction, so that the installation is simple and the accurate positioning of the first cooperation valve 2141 and the second cooperation valve 2240 can be easily ensured.

[0152] In addition, by arranging the locking assembly 30 and the lock catch 31 in the locking assembly 30 having the blocking position and the unlocking position, and the trigger 2 being configured to drive the lock catch 31 to switch from the blocking position to the unlocking position, when pulling out is needed, the trigger 2 only needs to drive the lock catch 31 to switch from the blocking position to the unlocking position, so that the lock catch 31 is in the unlocking position and no longer blocks the pull-out path of the filter element, so that the filter element 10 can be pulled out. The operation process is also relatively simple.

[0153] Since the stop portion of the lock catch 31 is away from the pull-out path relative to the blocking position when the lock catch 31 is in the unlocking position, the lock catch 31 will not contact the surface of the filter element 10 during the pulling-out process and will not scratch the filter element 10.

[0154] It should be noted that the trigger 2 can be a handle 200, at this time the trigger 2 is connected to the filter element body 100, and can be regarded as a part of the filter element 10. Or in some other embodiments, the trigger 2 can also be an unlockable or lockable button, which can be pressed to realize the switching of the lock catch 31 between the unlocking position and the blocking position, at this time, the trigger 2 can be arranged on the machine body 20. In the subsequent description, the embodiments of the present application take the trigger 2 as the handle 200 for example, and similar to the case of the trigger 2 being other structures, which will not be described here.

[0155] Further, the locking assembly 30 further comprises a first elastic member 32, which is configured to always apply an elastic force to the lock catch 31 to keep the lock catch 31 in the blocking position, and the trigger 2 is configured to be able to drive the lock catch 31 to overcome the elastic force to switch the lock catch 31 from the blocking position to the unlocking position.

[0156] Thus, since the first elastic member 32 is configured to always apply an elastic force to the lock catch 31 to keep the lock catch 31 in the blocking position, and the trigger 2 is configured to be able to drive the lock catch 31 to overcome the elastic force to switch the lock catch 31 from the blocking position to the unlocking position, the first elastic member 32 ensures that the lock catch 31 is always kept in the blocking position when the trigger 2 is not in action, ensuring that the filter element 10 is blocked and cannot be pulled out of the accommodating cavity 21. When it is needed to be pulled out, only the trigger 2 is needed to drive the lock catch 31 to overcome the elastic force of the first elastic member 32 to switch the lock catch 31 from the blocking position to the unlocking position, so that the lock catch 31 is in the unlocking position and no longer blocks the pulling-out path of the filter element 10, so that the filter element 10 can be pulled out. The operation process is also relatively simple. Of course, when the lock catch 31 is in the blocking position and the trigger 2 is not in action, the lock catch 31 can be kept in the blocking position under the action of the elastic force of the first elastic member 32, and will not be unlocked.

[0157] In combination with Figure 2 , Figure 3 and Figure 4 , the lock catch 31 is rotationally connected to the machine body 20 about the first axis and is switched between the blocking position and the unlocking position by rotation. The side of the lock catch 31 facing the filter element 10 is provided with a protruding portion 310, which forms the aforementioned stop portion.

[0158] When the lock catch 31 is rotated to the blocking position, the protruding portion 310 is arranged on the pulling-out path; when the lock catch 31 is rotated to the unlocking position, the protruding portion 310 is away from the pulling-out path relative to the position thereof in the blocking position.

[0159] The switching of the lock catch 31 between the blocking position and the unlocking position is achieved by rotating the lock catch 31. In the blocking position, the protruding portion 310 is arranged to block the pulling-out path, so as to prevent the filter element 10 from being pulled out of the accommodating cavity 21. In the unlocking position, the protruding portion 310 is away from the pulling-out path after the lock catch 31 is rotated relative to the position in the blocking position. Such an arrangement can save space and facilitate switching operation. In a specific implementation, the first axis can be parallel to the pulling-out direction of the filter element body 100.

[0160] With reference to the foregoing Figure 3 and Figure 4 In the embodiment of the present application, the machine body 20 includes a machine body 22 and an end plate 23. The accommodating cavity 21 is formed in the machine body 22, and the end plate 23 is arranged around the opening edge of the accommodating cavity 21. The lock catch 31 is hinged to the end plate 23 through a hinge shaft 311. In this way, the lock catch 31 is actually arranged on the side of the opening of the accommodating cavity 21, which facilitates installation. In a specific implementation, for example, the hinge hole 312 can be arranged on the lock catch 31, and the hinge shaft 311 can be fixed to the end plate 23 through the hinge hole 312, so as to hinge the lock catch 31 to the end plate 23.

[0161] The lock catch 31 is hinged to the side of the end plate 23 away from the bottom of the accommodating cavity 21 through the hinge shaft 311. In this way, the lock catch 31 is actually arranged outside the accommodating cavity 21, which is more convenient for installation compared with being arranged inside the accommodating cavity 21.

[0162] Further, the machine body 20 further includes a pressing plate 24 connected to the end plate 23. The pressing plate 24 is arranged on the side of the end plate 23 away from the bottom of the accommodating cavity 21, and the lock catch 31 is arranged between the end plate 23 and the pressing plate 24.

[0163] In this way, the pressing plate 24 can assist in positioning the lock catch 31, that is, the lock catch 31 is arranged in the space defined by the end plate 23 and the pressing plate 24, so as to prevent the lock catch 31 from being separated from the hinge shaft 311.

[0164] The opposite surfaces of the end plate 23 and the pressing plate 24 can be respectively provided with first mounting holes and second mounting holes (not shown). The first mounting holes on the end plate 23 and the second mounting holes on the pressing plate 24 can be arranged in one-to-one correspondence with each other. The two ends of the hinge shaft 311 can be respectively clamped in a set of corresponding first mounting holes and second mounting holes. In this way, the hinge shaft 311 is arranged between the end plate 23 and the pressing plate 24.

[0165] Of course, the pressing plate 24 is also provided with a avoiding opening 241 corresponding to the position of the opening of the accommodating cavity 21, so as to allow the filter element 10 to enter and exit the accommodating cavity 21.

[0166] In the embodiment of the present application, the first elastic member 32 is a torsion spring. The two free ends of the torsion spring are respectively connected to the machine body 20 and the lock catch 31.

[0167] In this way, the torsion spring always applies an elastic force to the lock catch 31 to rotate towards the filter element 10, so that the lock catch 31 always has a tendency to rotate towards the filter element 10, and when the trigger 2 is not operated, the lock catch 31 is always in the blocking position.

[0168] For example, the following can be referred to for specific implementation Figure 4 The torsion spring body can be sleeved on the hinge shaft 311, and one of the two free ends of the torsion spring abuts against the clamping wall 230, and the other abuts against the lock catch 31.

[0169] Further, the following can be referred to Figure 5a , Figure 6a , Figure 7 , Figure 8 The filter element assembly 1 further comprises an ejection assembly 50, which comprises an ejector 51 (for example, a pull ring 510) connected with the accommodation cavity 21. In some embodiments, the ejector 51 is arranged in the accommodation cavity 21 and can slide relative to the inner wall of the accommodation cavity 21 in the insertion direction of the filter element 10, so as to be driven by the insertion operation of the filter element 10 and move a certain distance in the insertion direction. The ejector 51 is used to move from a first position (see Figure 7 ) to a second position (see Figure 8 ) in the pull-out direction of the filter element 10 when the lock catch 31 rotates to the position where the protrusion 310 just leaves the pull-out path, so as to eject the filter element 10 in the pull-out direction.

[0170] In this way, the pull ring 510 is driven by the filter element 10 to move a certain distance in the insertion direction during the insertion process of the filter element 10, and during this process, the pull ring 510 lifts the filter element 10 to smoothly butt against the end of the accommodation cavity 21 from the initial position of the pull ring 510, so that the insertion process of the filter element 10 is relatively smooth and smooth.

[0171] Figure 6a and Figure 7 shows the first position of the ejector 51, Figure 8 shows the second position of the ejector 51. In this way, the filter element 10 can be ejected a certain distance out of the accommodation cavity 21 by the ejection assembly 50 in the unlocked position, which facilitates the pull-out operation of the filter element body 100 by the operator.

[0172] In the embodiments of the present application, the following can be referred to Figure 5a , Figure 5b, the end of the insertion direction of the filter core body 100 is configured as a reduced diameter end 101 to form a shoulder structure 1011. The ejector 51 is configured as a ring-shaped pull ring 510, the ejector 51 is sleeved on the reduced diameter end 101, and is used to abut against the shoulder structure 1011 when the ejector 51 is moved from the first position to the second position. The shoulder structure 1011 is used to drive the pull ring 510 to move in the insertion direction in the accommodation cavity 21 when the pull ring 510 contacts the shoulder structure 1011 during the insertion process of the filter core 10.

[0173] Since the ejector 51 abuts against the shoulder structure 1011 when moving from the first position to the second position (corresponding to the pulling-out process of the filter core 10), the filter core 10 is also driven to move from the first position to the second position during the movement of the ejector 51 from the first position to the second position. On the other hand, since the shoulder structure 1011 drives the pull ring 510 to move in the insertion direction in the accommodation cavity 21 when the pull ring 510 contacts the shoulder structure 1011 during the insertion process of the filter core 10, and the pull ring 510 is configured to be capable of sliding relative to the accommodation cavity 21, the filter core 10 can be inserted into the accommodation cavity 21 with the pull ring 510 along the inner wall of the accommodation cavity 21.

[0174] In addition, the necked portion 101 is also provided with an anti-stupidity groove 1012, and an anti-stupidity protrusion (not shown) is arranged at the corresponding position of the accommodation cavity 21. When the filter core body 100 is inserted into the accommodation cavity 21, the anti-stupidity groove 1012 and the anti-stupidity protrusion cooperate with each other to fix the relative position of the filter core body 100 and the accommodation cavity 21 in the circumferential direction.

[0175] Further, at least part of the surface profile of the inner circumferential side of the ejector 51 matches the outer circumferential profile of the end portion of the filter core 10 in the insertion direction, for example, the reduced diameter end 101, and one side of the pull ring 510 facing the opening of the accommodation cavity 21 is provided with a guide slope 5101 inclined to the radial outer side of the pull ring 510. Here, the reduced diameter end 101 refers to the part of the filter core segment near the end portion, and the diameter of the part is slightly smaller than that of the main body portion.

[0176] By matching the at least part of the surface profile of the inner circumferential side of the ejector 51 with the outer circumferential profile of the reduced diameter end 101, the ejector 51 can exert force on the filter core body 100 in the whole circumferential range, and the force on the filter core body 100 is relatively uniform in the whole circumferential range, avoiding the occurrence of skewing of the filter core body 100 during the ejection process or the insertion process. The arrangement of the guide slope 5101 also facilitates the insertion of the insertion end of the filter core body 100 into the pull ring 510.

[0177] In other words, the insertion direction end of the filter element 10 can be inserted into the pull ring 510. In addition, as described above, the guide slope 5101 is located on the side of the pull ring 510 facing the insertion direction end of the filter element 10, and is inclined to the radial outer side of the pull ring 510 to guide the insertion of the insertion direction end of the filter element 10. This facilitates the insertion of the insertion end of the filter element 10 into the pull ring 510.

[0178] The filter element 10 is guided by the guide slope 5101 during the middle of the insertion, before being fully inserted, and is gradually inserted into the pull ring 510, which can prevent the filter element 10 from being too heavy and difficult to align due to the long insertion direction dimension.

[0179] More specifically, the insertion direction end of the filter element 10 can be inserted into the pull ring 510 by the ejection member 51, such as the pull ring 510, being connected to the inner wall of the accommodation cavity 21, so that when the filter element 10 enters the accommodation cavity 21, the insertion end of the filter element 10 will be supported by the pull ring 510 and will not sag as it is further inserted. Compared with the prior art, the installation difficulty is greatly reduced, and the operation is easy. And the relative positioning with the accommodation cavity 21 can be realized by relying on the pull ring 510, so that the relative position of the first cooperating valve 2141 and the second cooperating valve 2240 can be fixed, and the accurate positioning of the first cooperating valve 2141 and the second cooperating valve 2240 can be easily ensured, so that the filter element 10 can be easily installed in place, thereby improving the installation reliability of the filter element 10.

[0180] Continuing to refer to Figure 5a and Figure 5b , the pull ring 510 further comprises a circumferential mating surface 5100 connected to the guide slope 5101, and the guide slope 5101 and the circumferential mating surface 5100 together define the surface of the inner circumferential side of the pull ring 510.

[0181] The end surface of the shaft shoulder structure 1011 facing the guide slope 5101 is configured as a slope that can be in surface contact with the guide slope 5101, and the circumferential mating surface 5100 is in contact with the outer circumferential surface of the reduced diameter end 101.

[0182] In this way, when the filter element 10 is inserted into the pull ring 510 and moves the pull ring 510 inward, the shaft shoulder structure 1011 can be more smoothly matched with the pull ring 510, making the insertion process more stable.

[0183] Further, the pull ring 510 comprises an annular inner wall 512, a guide wall 513 and an outer wall 514, the inner wall 512 is arranged at a radial inner side of the outer wall 514. The guide wall 513 is connected to the axial same side end of the inner wall 512 and the outer wall 514 respectively. The inner circumferential surface of the inner wall 512 forms a circumferential fitting surface 5100, and the inner circumferential surface of the guide wall 513 forms a guide inclined surface 5101. In the above scheme, the inner wall 512 and the outer wall 514 are arranged at intervals, which can achieve the purpose of weight reduction.

[0184] Further, the surfaces of the inner wall 512 and the outer wall 514 facing each other are also connected with a reinforcing rib 515 to improve the structural strength of the pull ring 510.

[0185] In the embodiment of the present application, in combination with Figure 3 , Figure 5a , Figure 7 and Figure 8 , the circumferential outer side surface of the ejection piece 51 is provided with a guide lug 511.

[0186] The cavity wall of the accommodating cavity 21 is provided with a guide groove 213 corresponding to the position of the guide lug 511, and the guide lug 511 and the corresponding guide groove 213 guide and cooperate in the pulling-out direction (or the insertion direction). The guide groove 213 comprises two first limiting walls 2131 arranged oppositely in the pulling-out direction (or the insertion direction).

[0187] In this way, when the guide lug 511 moves along the pulling-out direction, the ejection piece 51 can only reciprocate between the first position and the second position due to the stop of the two first limiting walls 2131. Of course, the first limiting wall 2131 towards the side of the bottom of the accommodating cavity can be formed by the bottom plate 224 described later. Of course, the number of guide lugs 511 can be two, and correspondingly, the number of guide grooves 213 can also be two.

[0188] In the embodiment of the present application, in combination with Figure 7 , the pull ring 510 and the bottom wall of the accommodating cavity 21 are provided with a second elastic member 53, which is used to always apply an elastic force to the pull ring 510 away from the bottom wall of the accommodating cavity 21. Further, the second elastic member 53 pushes the pull ring 510 in the pulling-out direction of the filter element 10 when the lock catch 31 is in the unlocked position.

[0189] In this way, when the filter element 10 needs to be pulled out, the second elastic member 53 can make the pull ring 510 apply a force to the filter element 10 in the pulling-out direction, and when the user does not apply a force to the filter element 10, the filter element 10 can be ejected by a certain distance to assist the pulling-out process of the filter element 10.

[0190] In combination with Figure 5a and Figure 7Further, the bottom wall of the accommodating cavity 21 is further provided with an elastic member positioning seat 54, and two ends of the second elastic member 53 are connected to the elastic member positioning seat 54 and the guide lug 511 respectively.

[0191] In this way, the installation of the second elastic member 53 is facilitated.

[0192] In the embodiments of the present application, the accompanying drawings are combined Figure 6a , Figure 6b , Figure 7 The accommodating cavity 21 includes a first cavity section 2101 and a second cavity section 2102 connected in the insertion direction. When the accommodating cavity 21 is projected to the bottom wall of the accommodating cavity 21, the outer contour of the projection of the first cavity section 2101 is located outside the outer contour of the projection of the second cavity section 2102, that is, the inner diameter of the first cavity section 2101 is larger than that of the second cavity section 2102, and the second cavity section 2102 can be used to support the reduced diameter end portion 101 with a smaller diameter. Therefore, when the filter element 10 is installed in place in the accommodating cavity 21, the necked end portion 101 is accommodated in the second cavity section 2102 and is limited from moving further towards the bottom wall of the accommodating cavity 21.

[0193] Further, the length of the reduced diameter end portion 101 in the insertion direction is smaller than the length of the second cavity section 2102. In this way, it can be ensured that the reduced diameter end portion 101 can enter the second cavity section 2102 sufficiently, so that the first cooperating valve 2241 on the filter element 10 and the second cooperating valve 2240 on the bottom wall of the accommodating cavity 21 can be reliably inserted and fitted.

[0194] In the embodiments of the present application, the central axis of the pull ring 510 coincides with the central axis of the corresponding accommodating cavity 21.

[0195] In this way, during the insertion of the filter element 10 into the accommodating cavity 21, the central axis of the filter element 10 will not be deflected before and after the pull ring 510 is inserted, so that the first cooperating valve 2241 and the second cooperating valve 2240 can be aligned smoothly.

[0196] In the embodiments of the present application, the accompanying drawings are combined Figure 3 , Figure 5a and Figure 9 The water purifier 1000 further comprises a scratch-preventing member configured to apply a force to the lock catch 31 to limit the movement of the stop portion of the lock catch 31 towards the pulling-out path when the lock catch 31 is switched to the unlocked position, so that the lock catch 31 remains in the unlocked position. In this way, it can be prevented that the filter element 10 is scratched by the lock catch 31 during the pulling-out or insertion process.

[0197] Further, the scratch-preventing member is further configured to be located on the side of the lock catch 31 away from the pulling-out path when the lock catch 31 is in the blocking position. Thus, when the lock catch 31 is in the blocking position, the movement of the stop portion of the lock catch 31 is not limited.

[0198] Further, the scratch-preventing member is used to move along the pulling direction of the filter element body 100 when the lock catch 31 rotates to the position where the stop portion of the lock catch 31 is disengaged from the pulling path, and is arranged on the side of the lock catch 31 facing the pulling path, so as to keep the lock catch 31 in the unlocked position.

[0199] In a specific implementation, the ejection assembly 50 further comprises a pull rod 52, which is connected to the guide lug 511 and extends through the first limiting wall 2131 and towards the lock catch 31. The pull rod 52 can form the scratch-preventing member.

[0200] In Figure 9 , the two ejection assemblies 51 corresponding to the uppermost filter element 10 are in the second position, and the two ejection assemblies 51 corresponding to the lower filter element 10 are in the first position. When the ejection assemblies 51 are in the second position, the pull rod 52 abuts against the side of the lock catch 31 facing the filter element 10, as shown in Figure 9 .

[0201] In this way, the lock catch 31 can be kept in the unlocked position by the pull rod 52 abutting against the inside of the lock catch 31. Since the protrusion 310 is disengaged from the pulling path of the filter element 10, the protrusion 310 will not contact the filter element 10 during the pulling process of the filter element 10, thereby preventing the filter element 10 from being scratched. Moreover, during the insertion process of the filter element 10, the protrusion 310 is still disengaged from the pulling path of the filter element 10 under the action of the pull rod 52, so the protrusion 310 will not contact the filter element 10 during the insertion process of the filter element 10, and the filter element 10 can also be prevented from being scratched.

[0202] In a specific implementation, the pull rod 52 is connected to the guide lug 511 and extends through the first limiting wall 2131 and towards the lock catch 31, i.e., the part of the pull rod 52 connected to the guide lug 511 is located in the accommodating cavity 21, and the part of the pull rod 52 extending out of the accommodating cavity 21 through the first limiting wall 2131 and extends out of the accommodating groove and towards the lock catch 31.

[0203] In a specific implementation, referring to Figure 8 , the guide lug 511 is provided with a through hole 5111, and the pull rod 52 is arranged in the through hole 5111. A limiting ring 521 is arranged on the pull rod 52, and the outer periphery of the limiting ring 521 is clamped in the through hole 5111.

[0204] In this way, the pull rod 52 can be fixed in the through hole 5111 by the limiting ring 521, so as to avoid relative movement between the pull rod 52 and the guide lug 511. In a specific implementation, the outer periphery of the pull rod 52 can be provided with an annular groove (not shown), and the limiting ring 521 is clamped and positioned in the annular groove.

[0205] Continuing to refer to Figure 6aFurther, the side of the pull rod 52 away from the guide lug 511 is arranged in the end plate 23.

[0206] In this way, one end of the pull rod 52 is connected with the guide lug 511, and the other end of the pull rod 52 is supported on the end plate 23, and the end plate 23 can guide the movement of the pull rod 52 along the length direction of the pull rod 52. The length direction of the pull rod 52 may, for example, be along the pulling-out direction of the filter element 10. The end plate 23 is provided with a guide hole 520, and in this way, the movement of the pull rod 52 can be guided through the guide hole 520.

[0207] In the embodiment of the present application, the number of the lock catch 31 corresponding to one filter element 10 can be set as needed, for example, two lock catches 31 corresponding to one filter element 10, and the two lock catches 31 are oppositely arranged, and the number of the guide lug 511 and the pull rod 52 are both correspondingly arranged as two. In this way, the filter element 10 can be positioned at two positions, and the positioning of the filter element 10 is more reliable.

[0208] Continuing to refer to Figure 9 The lock catch 31 includes an abutting section 313 abutting against the pull rod 52 and a rotating connection section 314 rotatingly connected with the machine body 20.

[0209] In one embodiment, the protruding part 310 of the lock catch 31 is located between the abutting section 313 and the rotating connection section 314.

[0210] Since the protruding part 310 of the lock catch 31 is located between the abutting section 313 and the rotating connection section 314, the pull rod 52 and the hinge shaft 311 are located on both sides of the protruding part 310, and the layout of each structure is more uniform.

[0211] In this case, when the ejector 51 is located at the second position, the pull rod 52 is located on the side of the abutting section 313 of the lock catch 31 facing the filter element 10, avoiding the protruding part 310 from rotating towards the direction close to the filter element 10, so as to keep the lock catch 31 in the unlocked position.

[0212] In another embodiment, the number of the filter elements 10 is multiple, and the lock catches 31 corresponding to two adjacent filter elements 10 are located between the two adjacent filter elements 10 and are hinged to the machine body 20 through the same hinge shaft 311; for example Figure 9 The lock catches 31 located between the two lower filter elements 10. Figure 10a 、 Figure 10b The connection diagram of the two lock catches 31 is shown in the above embodiment. As described above, the lock catch 31 includes an abutting section 313 abutting against the pull rod 52 and a rotating connection section 314 rotatingly connected with the machine body 20. The rotating connection section 314 is located between the protruding part 310 and the abutting section 313.

[0213] Since the rotation directions of the two buckles 31 are opposite, when at least one of the two buckles 31 is unlocked, the length between the rotation axis of the buckle 31 and the protruding portion 310 is short, the rotation stroke of the two protruding portions 310 is short, and the rotation space reserved for the rotation of the buckle 31 between the two filter cartridges 10 can be minimized, and the reduction of the rotation space can also reduce the distance between the two filter cartridges 10, so that the structure is more compact.

[0214] In this case, in combination with Figure 10a and Figure 10b , when the ejection member 51 is in the second position, the pull rod 52 is located on the side of the abutting section 313 of the buckle 31 away from the filter cartridge 10, avoiding the rotation of the protruding portion 310 towards the filter cartridge 10, so as to keep the buckle 31 in the unlocked position.

[0215] If the number of filter cartridges 10 is three, the three filter cartridges 10 are defined as the first filter cartridge 11, the second filter cartridge 12 and the third filter cartridge 103, only the buckle 31 between the first filter cartridge 11 and the third filter cartridge 103 is provided with the structure that the rotation connecting section 314 is located between the protruding portion 310 and the abutting section 313, the remaining buckles 31 of the first filter cartridge 11 and the third filter cartridge 103, and the buckles 31 corresponding to the second filter cartridge 12 all adopt the structure that the protruding portion 310 of the buckle 31 is located between the abutting section 313 and the rotation connecting section 314.

[0216] In the embodiment of the present application, when the rotation connecting section 314 is located between the protruding portion 310 and the abutting section 313, the rotation connecting section 314 of the buckle 31 is provided with two hinge arms 3141 arranged at intervals along the pulling-out direction of the filter cartridge 10, and the two hinge arms 3141 are penetrated by a corresponding hinge shaft 311.

[0217] Among the two buckles 31 hinged to the same hinge shaft 311, the two hinge arms 3141 of one buckle 31 are located between the two hinge arms 3141 of the other buckle 31.

[0218] Referring to Figure 2 , the machine body 20 further comprises at least one set of side plates arranged outside the machine body 22, and the side plates are arranged one by one corresponding to the pull rod 52.

[0219] The side plate set comprises two side plates 25 extending along the extension direction of the pull rod 52, and the ends of the extension direction of the two side plates 25 are connected to a first limiting wall 2131 and an end plate 23 respectively. The two side plates 25 in a set of side plates are oppositely arranged and jointly define a channel for accommodating the pull rod 52. It should be noted that the channel is a semi-open channel with one side of the length direction communicating with the outside. This facilitates the installation of the pull rod 52.

[0220] In this way, the two side plates 25 can protect the pull rod 52 and prevent the pull rod 52 from interfering with other components in the water purifier 1000 during movement.

[0221] In combination Figure 5a and Figure 7 As described above, the elastic member positioning seat 54 is connected to the bottom wall of the accommodating cavity 21. The second elastic member 53 is connected between the ejection member 51 and the elastic member positioning seat 54 and is used to always apply an elastic force to the ejection member 51 away from the elastic member positioning seat 54.

[0222] In this way, once the protruding portion 310 just leaves the pulling-out path, the ejection member 51 will move in the pulling-out direction under the elastic force of the second elastic member 53.

[0223] With reference to Figure 2 , Figure 5a , Figure 11 In the embodiment, the trigger member 2 is connected to the filter element body 100. In specific implementation, the trigger member 2 is rotationally connected to the filter element body 100 about a second axis. The side wall of the filter element body 100 along the pulling-out direction is provided with a first limiting groove 1001 for the protruding portion 310 to extend into.

[0224] In this way, the protruding portion 310 extends into the first limiting groove 1001, and when the filter element 10 has a pulling-out trend relative to the accommodating cavity 21, the groove wall (stopping groove wall 10011) of the first limiting groove 1001 will abut against the protruding portion 310, and the protruding portion 310 blocks the pulling-out path of the filter element 10, thereby preventing the filter element 10 from continuously moving outward.

[0225] In specific implementation, the first axis and the second axis have an included angle, for example, the first axis and the second axis can be perpendicular.

[0226] The filter element body 100 can include a filter portion 110, an end cover 120 and a decorative cover 130 which are sequentially arranged at the end of the filter portion 110, and the first limiting groove 1001 can be arranged on the decorative cover 130. The connection relationship between the end cover 120 and the decorative cover 130 and the connection relationship between the end cover 120 and the filter portion 110 will be described in detail later. It should be noted that the end cover 120 and the decorative cover 130 can be formed integrally or separately. In the embodiment of separate formation, the decorative cover 130 can be designed in different styles according to different use requirements to improve the use experience of the user. For the case of separate formation of the end cover 120 and the decorative cover 130, the specific connection mode of the handle 20 and the decorative cover 130 will be described in detail later. In the step of integral formation of the end cover 120 and the decorative cover 130, the connection mode of the handle 200 and the decorative cover is similar to that of the separate formation, which will not be described herein again.

[0227] In combination Figure 11 andFigure 12 As mentioned above, the trigger 2 can be rotationally connected to the filter core body 100 around the second axis, and the trigger 2 is provided with a pushing portion capable of pushing the protruding portion 310, the pushing portion is configured to be capable of contacting the protruding portion 310 and pushing the lock catch 31 to rotate in the direction away from the filter core 10 to the unlocking position during the rotation of the trigger 2.

[0228] The protruding portion 310 is provided with a first abutting surface 3105 and a first guide inclined surface 3101 which are adjacent to each other and arranged at an angle, and the pushing portion 3103 includes a second guide inclined surface 3102 and a second abutting surface 3104 provided on the trigger 2, the second guide inclined surface 3102 and the second abutting surface 3104 are adjacent to each other and arranged at an angle, and the first guide inclined surface 3101 and the second guide inclined surface 3102 form a inclined surface cooperation.

[0229] The trigger 2 is configured to rotate the second guide inclined surface 3102 and the second abutting surface 3104 during rotation to sequentially abut the second guide inclined surface 3102 against the first guide inclined surface 3101 and abut the second abutting surface 3104 against the first abutting surface 3105, so as to drive the lock catch 31 to rotate in the direction away from the filter core 10 to the unlocking position. In this way, as long as the trigger 2 is rotated, the lock catch 31 can be rotated to the unlocking position through the relative action of the pushing portion 3103 and the protruding portion 310.

[0230] Figure 12 The upper left drawing is a schematic view of the lock catch 31 in the blocking position, at this time, part of the structure of the protruding portion 310 is located in the first limiting groove 1001, and part of the structure is located in the second limiting groove 1002, Figure 12 The lower left drawing is a schematic view of the lock catch 31 in the unlocking position, at this time, the protruding portion 310 exits from the first limiting groove 1001 and the second limiting groove 1002.

[0231] In combination Figure 11 And Figure 12 Further, the trigger 2 is a handle 200, the number of the first limiting grooves 1001 is two, and the two ends of the handle 200 are respectively rotationally connected to one of the first limiting grooves 1001;

[0232] The two ends of the handle 200 are respectively provided with the second limiting groove 1002, one groove wall of the second limiting groove 1002 is provided with a notch to communicate the second limiting groove 1002 with the first limiting groove 1001; the groove wall of the second limiting groove 1002 adjacent to the notch forms the second guide inclined surface 3102, and when the lock catch 31 is in the blocking position, one part of the structure of the protruding portion 310 is located in the first limiting groove 1001, and the other part of the structure is located in the second limiting groove 1002.

[0233] In this way, from the moment the lock catch 31 is in the blocking position, the trigger 2 starts to rotate, and when the second guide slope 3102 is rotated by the trigger 2, the second guide slope 3102 abuts against and lifts the first guide slope 3101 while sliding with the first guide slope 3101, and the contact area between the second guide slope 3102 and the first guide slope 3101 becomes smaller and smaller, until the protrusion 310 can gradually move out of the second limiting groove 1002 from the gap, at which time the surfaces of the two ends of the handle 200 that are away from each other abut against the first guide slope 3101, and the first guide slope 3101 is continuously lifted until the protrusion 310 is lifted out of the first limiting groove 1001.

[0234] In a specific implementation, the two second limiting grooves 1002 can be oppositely arranged. In this way, the two protrusions 310 can be clamped at opposite positions of the filter element 10, so as to facilitate the filter element 10 to be clamped by a more uniform clamping force.

[0235] Further, the groove wall in the first limiting groove 1001 that is used to block the protrusion 310 is defined as a stop groove wall 10011. The width of the second guide slope 3102 is smaller than the width of the first guide slope 3101. When the lock catch 31 is in the blocking position, the second guide slope (3102) has a spacing with the stop groove wall 10011 in the pulling-out direction of the filter element 10, as shown in Figure 11 In this way, when the trigger 2 rotates, the protrusion 310 can smoothly move out of the second guide groove 213 and the first limiting groove 1001 from the gap on the limiting groove 1002.

[0236] Further, in the case where one filter element 10 corresponds to two lock catches 31, the protrusions 310 of the two lock catches 31 are oppositely arranged, and the line connecting the two protrusions 310 passes through the center of the filter element body 100.

[0237] In this way, the positions at which the two protrusions 310 block the filter element body 100 are symmetrically arranged with respect to the filter element body 100, and the blocking forces of the two protrusions 310 on the filter element body 100 are also more uniform. Of course, the number of the pull rods 52, guide ears 511, guide grooves 213, etc. that are used in cooperation with the lock catch 31 is also two respectively.

[0238] In the embodiments of the present application, reference is made to Figure 2 and Figure 13 As described above, in the case where the number of filter elements 10 is three, the three filter elements 10 are defined as a first filter element 11, a second filter element 12, and a third filter element 103 respectively. Among them, the first filter element 11, the second filter element 12, and the third filter element 103 are parallel to each other in the machine body 20.

[0239] The first filter element 11, the second filter element 12 and the third filter element 103 are sequentially connected in series and are all configured in a cylindrical shape. The diameter of the second filter element 12 is greater than or equal to the diameters of the first filter element 11 and the third filter element 103. The first filter element 11 and the third filter element 103 are sequentially and spacedly arranged along the left-right direction. The second filter element 12 is located on the upper side of the first filter element 11 and the third filter element 103. The up-down direction, the left-right direction and the axis O1 of the first filter element are all perpendicular to each other.

[0240] In the up-down direction, the lowermost point D1 of the second filter element is arranged on the lower side compared with the uppermost point C1 of the first filter element and the uppermost point E1 of the third filter element, and is arranged on the upper side compared with the axis O1 of the first filter element and the axis O3 of the third filter element. Figure 13 In the up-down direction, the lowermost point D1 of the second filter element is arranged on the lower side compared with the uppermost point C1 of the first filter element and the uppermost point E1 of the third filter element, and is arranged on the upper side compared with the axis O1 of the first filter element and the axis O3 of the third filter element.

[0241] In the left-right direction, the leftmost point D2 of the second filter element is arranged on the left side compared with the axis O1 of the first filter element, and the rightmost point D3 of the second filter element is arranged on the right side compared with the axis O3 of the third filter element. Figure 13 In the left-right direction, the leftmost point D2 of the second filter element is arranged on the left side compared with the axis O1 of the first filter element, and the rightmost point D3 of the second filter element is arranged on the right side compared with the axis O3 of the third filter element.

[0242] By arranging the lowermost point D1 of the second filter element on the lower side compared with the uppermost point C1 of the first filter element and the uppermost point E1 of the third filter element, and arranging the lowermost point D1 of the second filter element on the upper side compared with the axis O1 of the first filter element and the axis O3 of the third filter element in the up-down direction, the second filter element 12 is as close as possible to the first filter element 11 and the third filter element 103 in the up-down direction.

[0243] By arranging the leftmost point D2 of the second filter element on the left side compared with the axis O1 of the first filter element, and arranging the rightmost point of the second filter element on the right side compared with the axis O3 of the third filter element in the left-right direction, the second filter element 12 occupies as small a space as possible in the left-right direction with the first filter element 11 and the third filter element 103.

[0244] In this way, the second filter element 12, the first filter element 11 and the third filter element 103 are arranged as close to each other as possible, and the total space occupied by the second filter element 12, the first filter element 11 and the third filter element 103 is as small as possible.

[0245] In a specific implementation, the second filter element 12 can be an RO reverse osmosis membrane filter element 10, the first filter element 11 can be a PP cotton + activated carbon rod filter element 10, which can intercept silt, rust and other large particle substances, adsorb color and odor, and remove residual chlorine, and the third filter element 103 can be an activated carbon filter element 10, which can inhibit microorganisms and improve taste.

[0246] When the filter element assembly 1 is applied in the water purifier 1000, the height direction and the width direction of the water purifier 1000 as viewed by the human eye when the user is facing the front of the water purifier 1000 can be understood as the above-mentioned up-down direction and left-right direction. When the water purifier 1000 is placed on a horizontal plane, the up-down direction is also the vertical direction, and the left-right direction is also the horizontal direction. The left-right direction and the axis O2 of the second filter element are both located in the horizontal plane. Of course, in some other embodiments, when the water purifier 1000 is not absolutely placed on the horizontal plane, the up-down direction and the vertical direction can also have an included angle, and the left-right direction and the horizontal direction can also have an included angle. In the embodiments of the present application, as long as the up-down direction, the left-right direction and the axis O2 of the second filter element are perpendicular to each other.

[0247] In the embodiments of the present application, the distance d1 between the axis O1 of the first filter element and the axis O2 of the second filter element, and the distance d2 between the axis O3 of the third filter element and the axis O2 of the second filter element satisfy d1 = d2. In this way, not only is it more aesthetically pleasing, but it also maximizes space savings.

[0248] Further, the diameter of the first filter element 11 and the diameter of the third filter element 103 are the same, and the diameter of the second filter element 12 is greater than the diameter of the first filter element 11. In this way, the space occupied by the filter element assembly 1 in the up-down direction can also be saved.

[0249] Further, with reference to Figure 3 , the machine body 20 is configured with three accommodation cavities 21, and the first filter element 11, the second filter element 12 and the third filter element 103 are accommodated in the three accommodation cavities 21, respectively. The sides of the three accommodation cavities 21 close to each other are in communication with each other.

[0250] In this way, compared with the arrangement of three independent accommodations, the weight of the machine body 20 can be reduced, and the processing difficulty can be reduced.

[0251] In combination with Figure 13 , Figure 14a and Figure 15a , further, the machine body 20 includes a machine body main body 22, and the machine body main body 22 includes a first filter element frame 221, a second filter element frame 222 and a third filter element frame 223, and a bottom plate 224 connected to one end of the first filter element frame 221, the second filter element frame 222 and the third filter element frame 223.

[0252] The first filter core frame 221, the second filter core frame 222 and the third filter core frame 223 are sequentially connected end to end, and the inner contour shapes of the first filter core frame 221, the second filter core frame 222 and the third filter core frame 223 respectively match the partial circumferential outer contour shapes of the first filter core 11, the second filter core 12 and the third filter core 103, so that the first filter core frame 221, the second filter core frame 222 and the third filter core frame 223 and the bottom plate 224 respectively define three accommodation cavities 21 communicating with each other. The three pull rings 510 can be provided on the inner walls of the first filter core frame 221, the second filter core frame 222 and the third filter core frame 223 one by one.

[0253] The first filter core frame 221, the second filter core frame 222 and the third filter core frame 223 are sequentially connected end to end, which means that the first filter core frame 221, the second filter core frame 222 and the third filter core frame 223 are connected end to end in the circumferential direction, and the three accommodation cavities 21 communicate with each other, which can save the material of the machine body 22 and reduce the weight.

[0254] Further, the first filter core frame 221 surrounds the outside of the region of more than half of the circumference of the first filter core 11. The second filter core frame 222 surrounds the outside of the region of more than half of the circumference of the second filter core 12. The third filter core frame 223 surrounds the outside of the region of more than half of the circumference of the third filter core 103.

[0255] In this way, the first filter core 11 can be fixed in position by the first filter core frame 221 and will not enter the second filter core frame 222 and the third filter core frame 223. Similarly, the second filter core 12 and the third filter core 103 can also be fixed in position in the second filter core frame 222 and the third filter core frame 223.

[0256] Further, the connection positions of the first filter core frame 221 and the second filter core frame 222, the second filter core frame 222 and the third filter core frame 223, and the third filter core frame 223 and the first filter core frame 221 are all provided with inwardly recessed inner recess structures 2200.

[0257] In this way, the space of the inner recess structure 2200 can be provided with other elements, such as the diaphragm pump 2', the pipeline 3 and other components, which can fully utilize the space.

[0258] Further, as described above, the bottom of the first filter core 11, the second filter core 12 and the third filter core 103 towards the bottom of the accommodation cavity 21 is provided with a plurality of first matching valves 2141. The bottom plate 224 is provided with a plurality of second matching valves 2240 which are inserted and matched with the first matching valves 2141 one by one.

[0259] The bottom plate 224 is formed with waterway pipes (not shown) communicating with each second matching valve 2240, and the waterway pipes are used to sequentially cascade the first filter core 11, the second filter core 12 and the third filter core 103. The waterway pipes can be silica gel pipes or water flow channels formed by butt joint of two plates.

[0260] The first filter element 11 and the third filter element 103 each correspond to two sets of first cooperating valves 2141 and second cooperating valves 2240. For the first filter element 11, one set of first cooperating valves 2141 and second cooperating valves 2240 are inserted and cooperated to allow the water channel in the bottom plate 224 to supply water to the first filter element 11, and the other set of first cooperating valves 2141 and second cooperating valves 2240 are inserted and cooperated to allow the filtered water in the first filter element 11 to enter the water channel. The two sets of first cooperating valves 2141 and second cooperating valves 2240 on the third filter element 103 are arranged in a similar manner, which will not be described here.

[0261] The second filter element 12 corresponds to three sets of first cooperating valves 2141 and second cooperating valves 2240. One set of first cooperating valves 2141 and second cooperating valves 2240 are inserted and cooperated to allow the water channel in the bottom plate 224 to supply water to the second filter element 12, and the other two sets of first cooperating valves 2141 and second cooperating valves 2240 are inserted and cooperated to allow the filtered water in the second filter element 12 to enter the water channel.

[0262] In combination Figure 3 As mentioned above, the filter element assembly 1 further comprises an end plate 23 connected to the side of the first filter element frame 221, the second filter element frame 222, and the third filter element frame 223 away from the bottom plate 224.

[0263] The end plate 23 is provided with a first filter element inlet and outlet 231, a second filter element inlet and outlet 232, and a third filter element inlet and outlet 233 corresponding to the three accommodation cavities 21, respectively. The profiles of the first filter element inlet and outlet 231, the second filter element inlet and outlet 232, and the third filter element inlet and outlet 233 correspond to the first filter element 11, the second filter element 12, and the third filter element 103, respectively. Therefore, the junction positions of the first filter element inlet and outlet 231, the second filter element inlet and outlet 232, and the third filter element inlet and outlet 233 are not directly communicated, but there are connecting structures 234 corresponding to the positions where the three accommodation cavities 21 meet and communicate with each other.

[0264] In this way, the first filter element inlet and outlet 231, the second filter element inlet and outlet 232, and the third filter element inlet and outlet 233 can guide the installation of the first filter element 11, the second filter element 12, and the third filter element 103.

[0265] Further, the first filter element 11, the second filter element 12, and the third filter element 103 each comprise a filter element body 100. The filter element assembly 1 further comprises a locking assembly 30 and a trigger 2, and each of the first filter element 11, the second filter element 12, and the third filter element 103 is provided with at least one locking assembly 30 and at least one trigger 2.

[0266] In addition, as mentioned above, the body 22 is configured with three accommodating cavities 21 with openings, and the first filter element 11, the second filter element 12 and the third filter element 103 are respectively plugged with one opening and one corresponding accommodating cavity 21.

[0267] The corresponding latches 31 of the first filter element 11, the second filter element 12 and the third filter element 103 are all hinged to the end plate 23 through the hinge shaft 311.

[0268] Further, the corresponding latch 31 of the first filter element 11 and the corresponding latch 31 of the third filter element 103 are located between the first filter element 11 and the third filter element 103, and are hinged to the end plate 23 through the same hinge shaft 311. In this way, compared with the scheme that the first latch 31 and the third latch 31 are hinged to the end plate 23 through different hinge shafts 311, the space can be further saved.

[0269] In the embodiment of the present application, referring to Figure 15b and Figure 15c , the water purifier 1000 further comprises a hot water container 5, a booster pump 7, and a purified water tank 4 arranged between the hot water container 5 and the booster pump 7. The purified water tank 4 is in communication with the hot water container 5, and the booster pump 7 is in communication between the first filter element 11 and the second filter element 12.

[0270] The hot water container 5, the purified water tank 4 and the booster pump 7 are arranged on the upper side of the body 20, i.e. the filter element assembly 1, and the purified water tank 4 at least partially surrounds the booster pump 7.

[0271] In this way, the space between the booster pump 7 and the hot water container 5 can be reasonably utilized. Of course, in the case that the hot water container 5 and the booster pump 7 are both cylindrical, the effect of reasonably utilizing the space between the two is most obvious.

[0272] Further, the hot water container 5, the purified water tank 4 and the booster pump 7 are arranged in sequence along the front-rear direction, and the width dimension of the purified water tank 4 along the left-right direction is greater than the width dimension of the booster pump 7 along the left-right direction. The front-rear direction is perpendicular to the up-down direction and the left-right direction. The front side may, for example, be the side of the water purifier 1000 facing the user during use.

[0273] In specific implementation, the booster pump 7 is cylindrical, and the surface of the purified water tank 4 adjacent to the booster pump 7 is formed as a concave curved surface to accommodate part of the structure of the booster pump 7. Further, when the width dimension of the hot water container 5 along the left-right direction and the width dimension of the purified water tank 4 along the left-right direction are substantially equal, the effect of utilizing the space between the hot water container 5 and the booster pump 7 is most obvious.

[0274] In this embodiment, the width of the hot water container 5, the purified water tank 4, and the booster pump 7 in the left-right direction is smaller than the width of the body 20, i.e., the width of the filter element assembly 1 in the left-right direction. The distance between the outermost parts of the hot water container 5 and the booster pump 7 in the front-back direction is smaller than the length of the body 20, i.e., the length of the filter element assembly 1 in the front-back direction. Thus, the hot water container 5, the purified water tank 4, and the booster pump 7 are arranged completely above the filter element assembly 1.

[0275] In this embodiment, a heater 8 is provided on the side of the hot water container 5 away from the clean water tank 4. The heater 8 is located on the upper side of the filter element assembly 10 and is connected to the outlet of the hot water container 5.

[0276] Thus, the heater 8 can also be located on the upper side of the filter element assembly 10, which can make better use of the space on the upper side of the filter element assembly 10.

[0277] See Figure 1 , Figure 5a , Figure 16 and Figure 18 One embodiment of this application provides a filter element 10, which includes a filter element body 100, a handle 200, and a positioning mechanism 140. The filter element body 100 includes a mounting shell 13. (See also...) Figure 16 to 19 ,as well as Figure 21 The positioning mechanism 140 is connected to the mounting housing 13. The handle 200 is rotatably connected to the mounting housing 13 so that the handle 200 is in a gripping position. Figure 16 As shown), and the storage status ( Figure 17 (As shown). The positioning mechanism 140 can apply an elastic force to the handle 200 so that the handle 200 is held in a gripped state by abutting against the mounting housing 13; the positioning mechanism 140 can also apply an elastic force to the handle 200 so that the handle 200 is held in a stored state by abutting against the mounting housing 13.

[0278] In the above embodiment, the handle 200 is rotatably connected to the mounting housing 13, enabling the handle 200 to switch between a gripping state and a stored state. During the rotation from the stored state to the gripping state, the positioning mechanism 140 applies an elastic force to the handle 200, so that the handle 200 remains in the gripping state by abutting against the mounting housing 13. During the rotation from the gripping state to the stored state, the positioning mechanism 140 applies an elastic force to the handle 200, so that the handle 200 remains in the stored state by abutting against the mounting housing 13. In this way, the filter element can be stably maintained in both the gripping and stored states, and is less prone to shaking.

[0279] In some embodiments, the angle between the handle 200 and the filter body 100 in the gripping state is greater than the angle between the handle 200 and the filter body 100 in the storage state.

[0280] Further, in some embodiments, in the holding state, the handle 200 and the filter cartridge body 100 are perpendicular, the handle 200 is upright compared with the filter cartridge body 100; in the storage state, the handle 200 and the filter cartridge body 100 are parallel, the handle 200 is laid flat compared with the filter cartridge body 100. In other embodiments, it can also be that, in the holding state, the handle 200 and the filter cartridge body 100 are nearly perpendicular, in the storage state, the handle 200 and the filter cartridge body 100 are nearly parallel.

[0281] Referring to Figure 5a , Figure 16 to 19 In some embodiments, the mounting shell 13 is a decorative cover 130. The filter cartridge body 100 comprises a filter assembly and the decorative cover 130, the filter assembly comprises a filter part 110 for filtering, and an end cover 120 fixedly mounted at one end of the filter part 110, the decorative cover 130 is arranged at the end of the end cover 120 away from the filter part 110. In other embodiments, the decorative cover 130 can also be omitted, or the decorative cover 130 and the end cover 120 are combined into one part, or the two are fixedly connected.

[0282] In other embodiments, the mounting shell 13 can also be other components on the filter cartridge 10. In subsequent embodiments, the mounting shell 13 will be described as the decorative cover 130.

[0283] Referring to Figure 16 to 19 In some embodiments, the handle 200 has a first positioning surface 206 and a second positioning surface 207; when the handle 200 is rotated to the first positioning surface 206 facing the positioning mechanism 140, the positioning mechanism 140 can exert an elastic force on the first positioning surface 206 to make the handle 200 abut against the mounting shell 13 (the decorative cover 130); when the handle 200 is rotated to the second positioning surface 207 facing the positioning mechanism 140, the positioning mechanism 140 can exert an elastic force on the second positioning surface 207 to make the handle 200 abut against the mounting shell 13 (the decorative cover 130).

[0284] Referring to Figure 16 to 19 In some embodiments, the positioning mechanism 140 comprises a top block 141 elastically connected to the mounting shell 13 (the decorative cover 130); when the handle 200 is rotated to the first positioning surface 206 facing the top block 141, the top block 141 elastically abuts against the first positioning surface 206 to make the handle 200 abut against the mounting shell 13 (the decorative cover 130); when the handle 200 is rotated to the second positioning surface 207 facing the top block 141, the top block 141 elastically abuts against the second positioning surface 207 to make the handle 200 abut against the mounting shell 13 (the decorative cover 130).

[0285] Referring to Figure 16 to 19 , and Figure 21 With Figure 22In some embodiments, the handle 200 has a connected holding portion 201 and a rotating portion 202, the rotating portion 202 is rotationally connected to the mounting shell 13 (the decorative cover 130), and the rotating portion 202 has a first positioning surface 206 and a second positioning surface 207; when the rotating portion 202 is rotated to the first positioning surface 206 faces the top block 141, the top block 141 elastically abuts against the first positioning surface 206 to apply an elastic force to the holding portion 201 tending to be upright until the holding portion 201 abuts against the mounting shell 13 (the decorative cover 130); when the rotating portion 202 is rotated to the second positioning surface 207 faces the top block 141, the top block 141 elastically abuts against the second positioning surface 207 to apply an elastic force to the holding portion 201 tending to be horizontal until the holding portion 201 abuts against the mounting shell 13 (the decorative cover 130).

[0286] Specifically, the decorative cover 130 elastically connects with the top block 141, and the handle 200 can be rotationally connected to the decorative cover 130 through the rotating portion 202 to realize the switching of the handle 200 between the holding state and the storage state. A user can operate the holding portion 201 to drive the rotating portion 202 to rotate relative to the decorative cover 130. During the rotation, the rotating portion 202 always elastically abuts against the top block 141, and the degree of extrusion of the rotating portion 202 to the top block 141 is different when the rotating portion 202 is rotated to different positions. The top block 141 can reciprocatingly and elastically move due to the different degrees of extrusion of the rotating portion 202 to the top block 141. When the rotating portion 202 is rotated to be about to reach the holding state, the first positioning surface 206 of the rotating portion 202 faces the top block 141, the top block 141 elastically abuts against the first positioning surface 206, and then the holding portion 201 is abutted against the decorative cover 130, and the handle 200 is temporarily limited in the current position, the holding portion 201 can be stably upright and is not easy to shake, so as to be conveniently held and pulled. When the rotating portion 202 is rotated to be about to reach the storage state, the second positioning surface 207 of the rotating portion 202 faces the top block 141, the top block 141 elastically abuts against the second positioning surface 207, and then the holding portion 201 is abutted against the decorative cover 130, and the handle 200 is temporarily limited in the current position, the holding portion 201 can be stably kept horizontal relative to the filter element body 100, so as to not be easy to shake when the filter element is stored and installed in the water purifier.

[0287] Referring to Figure 18 , Figure 19 and Figure 21 , or, in other embodiments, when the rotating portion 202 is rotated to the first positioning surface 206 faces the top block 141, the top block 141 elastically abuts against the first positioning surface 206 to make the second positioning surface 207 abut against the mounting shell 13 (the decorative cover 130). When the rotating portion 202 is rotated to the second positioning surface 207 faces the top block 141, the top block 141 elastically abuts against the second positioning surface 207 to make the first positioning surface 206 abut against the mounting shell 13 (the decorative cover 130).

[0288] Specifically, when the handle 200 is about to reach the holding state, the top block 141 elastically abuts against the first positioning surface 206, so that the second positioning surface 207 abuts against the inner side wall of the decorative cover 130, thereby leaving no rotation allowance for the rotating part 202 and preventing the handle 200 from shaking.

[0289] In the above embodiment, in the two states, the rotating part 202 rotates to different positions, but the top block 141 can elastically abut against one of the positioning surfaces, so that the other positioning surface abuts against the decorative cover 130, thereby stably keeping the handle 200 in the current position in the two states and preventing the handle 200 from shaking.

[0290] In other embodiments, in the holding state, the top block 141 can also elastically abut against the first positioning surface 206, so that other positions of the rotating part 202 abut against the decorative cover 130. Similarly, in the storage state, the top block 141 can also elastically abut against the second positioning surface 207, so that other positions of the rotating part 202 abut against the decorative cover 130.

[0291] Referring to Figure 16 to 20 In some embodiments, the holding part 201 has a first limiting surface 2011 and a second limiting surface 2012, and the mounting shell 13 (the decorative cover 130) has a first blocking surface 1371 and a second blocking surface 1372. When the rotating part 202 rotates to the first positioning surface 206 facing the top block 141, the top block 141 elastically abuts against the first positioning surface 206, so that the first blocking surface 1371 abuts against the first limiting surface 2011; when the rotating part 202 rotates to the second positioning surface 207 facing the top block 141, the top block 141 elastically abuts against the second positioning surface 207, so that the second blocking surface 1372 abuts against the second limiting surface 2012.

[0292] In this way, the first blocking surface 1371 abutting against the first limiting surface 2011 and the second blocking surface 1372 abutting against the second limiting surface 2012 can limit the handle 200 in the two states, so that the handle 200 can be stably kept in the two states and is not prone to shaking.

[0293] In some embodiments, when the holding part 201 rotates to the holding state from the storage state, the second positioning surface 207 can abut against the inner side wall of the mounting shell 13 (the decorative cover 130) to limit the holding part 201; when the holding part 201 rotates to the storage state from the holding state, the first positioning surface 206 can abut against the inner top wall of the mounting shell 13 (the decorative cover 130) to limit the holding part 201.

[0294] In some embodiments, the solutions in the above two types of embodiments can exist simultaneously and limit the position together.

[0295] Referring to Figure 16 to 20 In some embodiments, the direction in which the first blocking surface 1371 abuts against the first limiting surface 2011 is perpendicular to the axial direction of the filter element, and the direction in which the second blocking surface 1372 abuts against the second limiting surface 2012 is parallel to the axial direction of the filter element.

[0296] Referring to Figure 18 , Figure 19 With Figure 21 In some embodiments, the top block 141 has a positioning inclined surface 1411, the first positioning surface 206 and the second positioning surface 207 are adjacently arranged and form an acute angle therebetween; when the rotating part 202 is rotated to the first positioning surface 206 faces the top block 141, the positioning inclined surface 1411 elastically abuts against the first positioning surface 206 and the two have the same inclination direction; when the rotating part 202 is rotated to the second positioning surface 207 faces the top block 141, the positioning inclined surface 1411 elastically abuts against the second positioning surface 207 and the two have the same inclination direction.

[0297] Specifically, in the embodiment shown in the drawings, the first positioning surface 206 and the second positioning surface 207 are both planes. The same inclination direction of the two surfaces means that the inclination directions of the two surfaces are substantially the same, and the actual inclination angles of the two surfaces can be completely equal or have a certain deviation.

[0298] In the above embodiments, in the two states, the inclination direction of the surface abutted by the positioning inclined surface 1411 is the same as that of the positioning inclined surface 1411, so that the fit degree when abutting can be increased, so that the handle 200 can be more easily and stably kept in the current state, and the shaking probability is lower.

[0299] In other embodiments, the first positioning surface 206 and the second positioning surface 207 can also form a right angle or an obtuse angle.

[0300] In other embodiments, the first positioning surface 206 and the second positioning surface 207 can also not be adjacently arranged.

[0301] In other embodiments, the first positioning surface 206 and the second positioning surface 207 can also be arranged as curved surfaces with slight curvature.

[0302] Referring to Figure 18 With Figure 19 In the embodiment shown in the drawings, the area of the positioning inclined surface 1411 used for abutting against the first positioning surface 206 in the holding state is different from the area used for abutting against the second positioning surface 207 in the storage state, and the inclination degrees of the two areas can be different or can be the same.

[0303] In some embodiments, the positioning slope 1411 comprises a first slope portion 14111 and a second slope portion 14112 with different inclination angles; when the rotating portion 202 rotates to the first positioning surface 206 facing the top block 141, the first slope portion 14111 elastically abuts against the first positioning surface 206; when the rotating portion 202 rotates to the second positioning surface 207 facing the top block 141, the second slope portion 14112 elastically abuts against the second positioning surface 207.

[0304] Specifically, in the holding state, the lower half of the positioning slope 1411 (the first slope portion 14111) abuts against the first positioning surface 206, and a force tending to be upright (a counterclockwise rotating force) is applied to the rotating portion 202; in the storage state, the upper half of the positioning slope 1411 (the second slope portion 14112) abuts against the second positioning surface 207, and a force tending to be horizontal (a clockwise rotating force) is applied to the rotating portion 202. In the above embodiment, by providing two slope portions with different inclination angles, the handle 200 will make a clicking sound during the switching between the two states, thereby reminding whether the rotation is in place.

[0305] Further, the angle between the second slope portion 14112 and the vertical direction is greater than the angle between the first slope portion 14111 and the vertical direction. Alternatively, the angle between the second slope portion 14112 and the horizontal direction is less than the angle between the first slope portion 14111 and the horizontal direction.

[0306] In other embodiments, the areas of the positioning slope 1411 for abutting against the two positioning surfaces in the two states can also be the same.

[0307] Referring to Figure 18 , Figure 19 and Figure 22 In some embodiments, the first positioning surface 206 and the second positioning surface 207 are connected by a transition surface 208 with a rounded corner.

[0308] As described above, during the rotation of the rotating portion 202, the top block 141 and the rotating portion 202 always elastically abut against each other, and the rounded corner transition between the first positioning surface 206 and the second positioning surface 207 by the transition surface 208 can make the elastic abutting process between the top block 141 and the rotating portion 202 more smooth, and it is not easy to appear jamming to hinder the rotation of the rotating portion 202.

[0309] Referring to Figure 18 , Figure 19 and Figure 21In some embodiments, the positioning mechanism 140 includes a positioning elastic member 142, two ends of the positioning elastic member 142 are connected to the top block 141 and the mounting shell 13 (the decorative cover 130) respectively, the rotating part 202 is located on the side of the top block 141 away from the positioning elastic member 142, and the positioning elastic member 142 is configured to always apply an elastic force of the top block 141 abutting against the rotating part 202.

[0310] In the above embodiments, the top block 141 is arranged between the rotating part 202 and the positioning elastic member 142, and the elastic force of the positioning elastic member 142 causes the top block 141 to have a tendency to move towards the rotating part 202, so that when the rotating part 202 rotates to the holding state and the storage state, the top block 141 elastically abuts against the first positioning surface 206 and the second positioning surface 207 on the rotating part 202, thereby stably maintaining the entire handle 200 in the holding state and the storage state, and the handle 200 is not prone to shaking.

[0311] Further, the positioning mechanism 140 is located inside the mounting shell 13 (the decorative cover 130), and the rotating part 202 also penetrates into the inside of the mounting shell 13 (the decorative cover 130). The inside of the top block 141 is hollow, one end of the positioning elastic member 142 extends into the inside of the top block 141 and is connected thereto, and the other end abuts against the inner wall of the decorative cover 130. The positioning elastic member 142 is selected to be a spring, which is in a compressed state, and the tensile springback force of the positioning elastic member 142 causes the top block 141 to always elastically abut against the rotating part 202.

[0312] In the above embodiments, the positioning mechanism 140 and the rotating part 202 are built-in, and can be protected by the decorative cover 130, so that they are not prone to being damaged.

[0313] In other embodiments, the positioning elastic member 142 can be omitted, and the top block 141 is directly arranged as a component having elasticity, one end of the top block 141 is connected to the decorative cover 130, and the other end elastically abuts against the rotating part 202.

[0314] Referring to Figure 18 , Figure 19 and Figure 21 In some embodiments, the mounting shell 13 (the decorative cover 130) has a top block guide groove 1311, and the top block 141 is slidingly arranged in the top block guide groove 1311.

[0315] Specifically, the inside of the decorative cover 130 is enclosed by a plate member to form the top block guide groove 1311 extending along the extension direction of the positioning elastic member 142, and when the top block 141 reciprocally moves due to different degrees of extrusion of the rotating part 202, the top block guide groove 1311 can guide the stroke of the top block 141, so that the top block 141 is not prone to position deviation, thereby more stably abutting against the rotating part 202. Meanwhile, the groove wall of the top block guide groove 1311 can also press the top block 141 to limit the position of the top block 141 in the direction perpendicular to the extension direction of the positioning elastic member 142.

[0316] Referring to Figure 21 to 23 In some embodiments, the rotating part 202 comprises a rotating shaft 203 rotatably connected to the mounting shell 13 (the decorative cover 130), and a cam 205 coaxially connected to the rotating shaft 203, the first positioning surface 206 and the second positioning surface 207 are both located on the cam 205, and the top block 141 always elastically abuts against the cam 205 during rotation of the rotating shaft 203.

[0317] Specifically, the cam 205 is sleeved outside the rotating shaft 203, and the two are fixedly connected or integrally formed. During rotation of the rotating shaft 203, the cam 205 rotates synchronously, so that in different states, the two positioning surfaces on the cam 205 are respectively directed towards and abut against the top block 141.

[0318] Further, in some embodiments, the rotating part 202 can comprise a rotating shaft 203 which is matched with the shaft hole of the decorative cover 130 and has two ends penetrating out of the decorative cover 130 and respectively connected with the two ends of the holding part 201. Alternatively, as shown in the embodiments of the drawings, the rotating part 202 comprises two rotating shafts 203 which are spaced apart from each other, and the cam 205 is arranged on one of the longer rotating shafts 203. Both of the rotating shafts 203 are matched with the shaft hole of the decorative cover 130 and have two ends penetrating out of the decorative cover 130 and respectively connected with the two ends of the holding part 201.

[0319] Referring to Figure 21 to 23 In some embodiments, the mounting shell 13 (the decorative cover 130) has a rotating groove 1331 inside, and the rotating shaft 203 is clamped in the rotating groove 1331 and can rotate in the rotating groove 1331.

[0320] Specifically, the rotating groove 1331 is an elongated groove which extends along the length direction of the rotating shaft 203. By arranging the rotating groove 1331, the rotating shaft 203 can be limited and rotated more stably without shaking.

[0321] Referring to Figure 20 to 24 Further, in some embodiments, the mounting shell 13 (the decorative cover 130) comprises a fixedly connected locking body 131 and a fixed plate 132, the fixed plate 132 is provided with a protruding piece 133 protruding towards the inner cavity of the locking body 131, the protruding piece 133 has the rotating groove 1331, and the radial ends of the rotating shaft 203 abut against the groove wall of the rotating groove 1331 and the cavity wall of the inner cavity of the locking body 131, respectively.

[0322] Specifically, the rotating groove 1331 is U-shaped and matches the shape of the rotating shaft 203. As Figure 24As shown, the lower end of the rotating shaft 203 is clamped in the rotating groove 1331 and abuts against the groove wall of the rotating groove 1331, and the upper end of the rotating shaft 203 abuts against the inner top wall of the locking body 131, thereby limiting the up-and-down movement of the rotating shaft 203 and making the rotating process more stable.

[0323] Referring to Figure 21 to 23 In some embodiments, a plurality of protruding pieces 133 are arranged along the axial direction of the rotating shaft 203, and the outer circumferential surface of the rotating shaft 203 is provided with a positioning block 204 located between adjacent protruding pieces 133.

[0324] Specifically, in the embodiment shown in the drawings, two protruding pieces 133 are provided, and the rotating shaft 203 is clamped into the rotating grooves 1331 provided on the two protruding pieces 133 in different regions, thereby enhancing the limiting and making the rotating process of the rotating shaft 203 more stable. The diameter of part of the regions on the outer circumferential surface of the rotating shaft 203 is greater than that of other regions, so as to form the outwardly protruding positioning block 204, and the cam 205 is arranged on the positioning block 204. The positioning block 204 is located between adjacent protruding pieces 133, and the two ends of the positioning block 204 can be axially limited by the adjacent protruding pieces 133, thereby limiting the axial movement of the rotating shaft 203 and making it less likely to have large axial movement.

[0325] Referring to Figure 16 to 17 In some embodiments, the side edge of the mounting shell 13 (the decorative cover 130) has a receiving groove 1312, and in the receiving state, the handle 200 is received in the receiving groove 1312 and flush with the end face of the mounting shell 13 (the decorative cover 130).

[0326] In the above embodiment, the receiving groove 1312 is arranged to receive the flattened handle 200, so that it does not protrude outward, and the overall shape of the filter element is more regular, which is convenient for storage and installation.

[0327] Referring to Figure 1 , Figure 5a , Figure 16 With Figure 18 An embodiment of the present application provides a decorative piece of a filter element 10, which comprises a mounting shell 13, a handle 200 and a positioning mechanism 140. Referring to Figure 16 to 19 , and Figure 21 The positioning mechanism 140 is connected to the mounting shell 13. The handle 200 is rotationally connected to the mounting shell 13, so that the handle 200 has a holding state (as shown in Figure 16 ) and a receiving state (as shown in Figure 17 ). The positioning mechanism 140 can exert an elastic force on the handle 200 to keep the handle 200 in the holding state by abutting against the mounting shell 13; and the positioning mechanism 140 can exert an elastic force on the handle 200 to keep the handle 200 in the receiving state by abutting against the mounting shell 13.

[0328] In the above embodiments, the handle 200 is rotatably connected to the mounting shell 13 to switch the handle 200 between the holding state and the storage state. During the rotation from the storage state to the holding state, the positioning mechanism 140 can apply an elastic force to the handle 200 to keep the handle 200 in the holding state by abutting against the mounting shell 13. During the rotation from the holding state to the storage state, the positioning mechanism 140 can apply an elastic force to the handle 200 to keep the handle 200 in the storage state by abutting against the mounting shell 13. In this way, the filter cartridge can be stably kept in the holding state and the storage state and is not prone to shaking.

[0329] In the decorative member, the specific connection structure between the mounting shell 13, the handle 200, the positioning mechanism 140 and other components has been described in the above embodiments, and will not be repeated here.

[0330] Referring to Figure 5a and Figure 16 , the filter cartridge 10 provided by an embodiment of the present application includes a filter cartridge body 100, and the filter cartridge body 100 includes a filter component and a mounting shell 13 (decorative cover 130), and the filter component has a filter part 110 for filtering. The mounting shell 13 (decorative cover 130) is arranged at an axial end of the filter component, and the mounting shell 13 (decorative cover 130) is connected and locked or unlocked and separated from the filter component through a locking mechanism. Figure 20 、 Figure 25 and Figure 26 , the locking mechanism includes a rotating groove 123 and a rotating buckle 134, one of the rotating groove 123 and the rotating buckle 134 is arranged on the filter component, and the other is arranged on the mounting shell 13 (decorative cover 130), and the filter component and the mounting shell 13 (decorative cover 130) are configured to rotate relative to each other to make the rotating buckle 134 rotate into or out of the rotating groove 123 along the circumferential direction of the filter component. A plurality of sets of locking mechanisms are arranged in an array along the circumferential direction of the filter component, and at least two sets of locking mechanisms are arranged at different positions in the radial direction of the filter component.

[0331] In the above embodiments, the filter component and the decorative cover 130 are separately arranged, and the two can be connected and locked by relative rotation, so that the screw 134 is screwed into the rotating groove 123, or the two can be unlocked and separated by reverse relative rotation, so that the screw 134 is withdrawn from the rotating groove 123. Therefore, manufacturers can separately design and manufacture decorative covers 130 of different colors and shapes. Users only need to replace the decorative cover 130 according to personal preferences to meet the individualization and aesthetic needs, without the need to replace the filter element as a whole, so as to reduce the use cost while meeting the individualization and aesthetic needs; when the filtering effect is not good, the filter component and the decorative cover 130 only need to be separated, and the filter component needs to be replaced, so as to reduce the use cost. In addition, since multiple sets of locking mechanisms are arranged to be locked at the same time, the stability of the connection and locking of the filter component and the decorative cover 130 can be improved, and the two are not easy to be separated. On this basis, the arrangement positions of the at least two sets of locking mechanisms in the radial direction of the filter component are different, so that the forward and reverse foolproofness can be achieved during installation, the direction error during installation is prevented, and the convenience of the installation process is ensured.

[0332] Referring to Figure 20 and Figure 25 , the arrangement positions of the at least two sets of locking mechanisms in the radial direction of the filter component are different, that is, the distances between the screws 134 in the at least two sets of locking mechanisms and the central axis O of the filter element 10 are different. The distances between the two rotating grooves 123 corresponding to the two screws 134 and the central axis O of the filter element 10 are also different.

[0333] For example, the distance between one of the screws 134 and the central axis O of the filter element is r1, and the distance between the other screw 134 and the central axis O of the filter element is r2, and r1 is not equal to r2.

[0334] Referring to Figure 20 , Figure 25 and Figure 26 , in some embodiments, the rotating groove 123 is arranged on the filter component, and the screw 134 is arranged on the decorative cover 130. In other embodiments, the positions of the rotating groove 123 and the screw 134 can be interchanged.

[0335] Referring to Figure 5a and Figure 16 , in some embodiments, the filter component includes an end cover 120 fixedly installed at one end of the filter part 110, and the decorative cover 130 is arranged at the end of the end cover 120 away from the filter part 110. The decorative cover 130 and the end cover 120 are connected and locked or unlocked and separated by the locking mechanism. Referring to Figure 20 , Figure 25 and Figure 26One of the rotating groove 123 and the rotating buckle 134 is arranged on the end cover 120, and the other is arranged on the decorative cover 130. The end cover 120 and the decorative cover 130 are configured to rotate relative to each other, so that the rotating buckle 134 is screwed into or out of the rotating groove 123 along the circumference of the filter component.

[0336] Referring to Figure 20 , Figure 25 and Figure 26 , in some embodiments, in order to facilitate manufacturing, the rotating groove 123 is arranged on the end cover 120, and the rotating buckle 134 is arranged on the decorative cover 130.

[0337] Since the end cover 120 is fixed to the filter 110, when the end cover 120 and the decorative cover 130 are rotated relative to each other, the end cover 120 and the decorative cover 130 can be locked or unlocked, thereby connecting or separating the entire filter component and the decorative cover 130.

[0338] In other embodiments, the positions of the rotating groove 123 and the rotating buckle 134 can also be interchanged, that is, the rotating groove 123 is arranged on the decorative cover 130, and the rotating buckle 134 is arranged on the end cover 120.

[0339] Referring to Figure 20 and Figure 25 , in some embodiments, at least two sets of locking mechanisms are spaced 180 degrees along the circumference of the filter component.

[0340] In the above embodiment, at least two sets of locking mechanisms are arranged 180 degrees along the circumference of the filter component, that is, the two sets of locking mechanisms are arranged at the two radial ends of the filter component, and the locking of the filter component and the decorative cover 130 is realized from the two radial ends, which can further improve the stability during locking.

[0341] Preferably, the two sets of locking mechanisms spaced 180 degrees from each other are arranged at different positions in the radial direction of the filter component.

[0342] Referring to Figure 20 and Figure 25 , in some embodiments, a plurality of sets of locking mechanisms are uniformly spaced along the circumference of the filter component.

[0343] In the above embodiment, by arranging a plurality of sets of uniformly spaced locking mechanisms, the uniformity of the arrangement position of the locking mechanisms can be increased, so that the filter component and the decorative cover 130 are stably and uniformly locked and connected in each region in the circumferential direction.

[0344] Preferably, in the plurality of sets of locking mechanisms, the arrangement position of each set of locking mechanisms in the radial direction of the filter component is different. In this way, the foolproofing accuracy can be further enhanced.

[0345] In the embodiment shown in the drawings, two sets of locking mechanisms are provided, which are spaced 180 degrees apart. In other embodiments, the number of locking mechanisms can also be increased, for example, three sets, four sets or more.

[0346] Referring to Figure 20 and Figure 25 , in some embodiments, the rotating groove 123 and the rotating buckle 134 are both arc-shaped extending along the circumference of the filter component.

[0347] In the above embodiment, the rotating groove 123 and the rotating buckle 134 are both arc-shaped, which can match the shape of the path when the filter component and the decorative cover 130 relatively rotate, so that the unlocking and locking operations are more smooth.

[0348] Referring to Figure 20 and Figure 25 , in some embodiments, the inner diameters of the two rotating buckles 134 in the two sets of locking mechanisms arranged at different positions in the radial direction of the filter component differ by 1-5 mm.

[0349] Specifically, as Figure 20 shown, the distance between one of the rotating buckles 134 and the central axis O of the filter element is r1, and the distance between the other rotating buckle 134 and the central axis O of the filter element is r2, 1mm≤r1-r2≤5mm.

[0350] By setting the difference between the inner diameters of the two rotating buckles 134 to the above range, the two sets of locking mechanisms can be distributed as close and concentrated as possible in the radial direction of the filter component while meeting the foolproofing requirements, which is beneficial to the miniaturization design of the filter element 10.

[0351] Referring to Figure 20 , Figure 25 and Figure 26 , in some embodiments, in the direction of the rotating buckle 134 rotating into the rotating groove 123, the size of the rotating groove 123 in the axial direction of the filter component gradually decreases.

[0352] Specifically, the rotating direction refers to the direction of the rotating buckle 134 rotating into the rotating groove 123. In Figure 26 the perspective view, the rotating buckle 134 rotates into the rotating groove 123 from right to left, and in this direction, the size of the rotating groove 123 in the up-down direction gradually decreases. By setting in this way, on the one hand, it can be convenient for the rotating buckle 134 to enter the rotating groove 123 in the initial stage, and on the other hand, it can be more and more tightly pressed against the rotating buckle 134 after the rotating buckle 134 gradually enters the rotating groove 123, so that the rotating buckle 134 does not exit the rotating groove 123 in the opposite direction without external force, thereby ensuring the firmness of the filter component and the decorative cover 130 after being locked.

[0353] Referring to Figure 20 , Figure 25 and Figure 26In some embodiments, the front end region of the knob 134 along the self-rotation direction has a first guide slope 1343 opposite to the groove wall of the rotation groove 123, and the distance between the first guide slope 1343 and the groove wall of the rotation groove 123 gradually increases along the rotation direction.

[0354] Specifically, the front end region of the knob 134 along the self-rotation direction refers to the region of the knob 134 that enters the rotation groove 123 first during the rotation process. Figure 26 From the perspective of the arrow, the left end region of the knob 134 is the front end region along the rotation direction. In the direction from right to left, the distance between the first guide slope 1343 and the groove wall of the rotation groove 123 gradually increases. In this way, the knob 134 can be guided in the initial stage of the rotation process, which facilitates the entry of the knob 134 into the rotation groove 123 and reduces the difficulty of the locking operation.

[0355] Referring to Figure 20 , Figure 25 and Figure 26 , in some embodiments, the first guide slope 1343 is arranged on both ends of the knob 134 along the axial direction of the filter component.

[0356] Specifically, in Figure 26 the perspective of the arrow, the two ends of the knob 134 along the axial direction of the filter component are the upper end and the lower end of the knob 134. In the embodiment shown in the drawings, the first guide slope 1343 is formed on the upper end of the knob 134. On this basis, the first guide slope 1343 can be arranged on both the upper end and the lower end of the knob 134 to further enhance the guiding effect, facilitate the entry of the knob 134 into the rotation groove 123, and further reduce the difficulty of the locking operation.

[0357] Preferably, in some embodiments, the groove wall of the rotation groove 123 also has a second guide slope 1232 similar to the first guide slope 1343 near the entrance end to guide the knob 134 during the rotation process.

[0358] Referring to Figure 20 , Figure 25 and Figure 26 , in some embodiments, the end cover 120 includes an end cover body 121 connected to the filter part 110, and a boss 122 protruding from the end cover body 121 and away from the filter part 110. Part of the boss 122 is recessed away from the end cover body 121 to form the rotation groove 123. The entrance side of the rotation groove 123 is provided with a receiving cavity 124 in communication therewith. The receiving cavity 124 penetrates the boss 122 along the axial direction of the filter component, and the knob 134 can be rotated into the rotation groove 123 through the receiving cavity 124.

[0359] Specifically, the outer contour of both the end cap body 121 and the boss 122 is circular, and the boss 122 is coaxial with the end cap body 121, and the outer diameter of the boss 122 is smaller than that of the end cap body 121. A part of the bottom end of the boss 122 is concave upward, so as to form a rotating groove 123 between the concave area and the end cap body 121, and a receiving cavity 124 is arranged through the boss 122 at the entrance side of the rotating groove 123. Therefore, the screw cap 134 can first enter the receiving cavity 124 for positioning, so as to reach the entrance side of the rotating groove 123, and then gradually screw into the rotating groove 123 through the relative rotation of the end cap 120 and the decorative cover 130.

[0360] Referring to Figure 20 , Figure 25 and Figure 26 , in some embodiments, as described above, the distance between the screw cap 134 in at least two groups of locking mechanisms and the central axis O of the filter element 10 is different from the distance between the at least two corresponding receiving cavities 124 and the central axis O of the filter element 10, so as to allow the corresponding screw cap 134 to enter.

[0361] Specifically, the distance between one of the receiving cavities 124 and the central axis O of the entire filter element is r3, and the distance between the other receiving cavity 124 and the central axis O of the filter element is r4, and r3 and r4 are not equal.

[0362] Referring to Figure 20 , Figure 25 and Figure 26 , in some embodiments, the rotating groove 123 and the receiving cavity 124 are arranged at the outer edge of the boss 122, so that the outer side of the rotating groove 123 and the receiving cavity 124 is open. In this way, the manufacturing and processing can be facilitated, and the operation during locking is also more convenient.

[0363] In other embodiments, the rotating groove 123 and the receiving cavity 124 can also be arranged at other areas of the boss 122.

[0364] Referring to Figure 16 , Figure 20 , Figure 24 , Figure 25 and Figure 26 , in some embodiments, the decorative cover 130 includes a decorative cover end plate 135, and a decorative cover side plate 136 extending from the decorative cover end plate 135 towards the end cap 120 side, the decorative cover side plate 136 can be sleeved outside the boss 122, and the inner wall of the decorative cover side plate 136 is in abutment with the outer side wall of the boss 122.

[0365] In particular, as mentioned above, the decorative cover 130 comprises a locking body 131, which comprises a decorative cover end plate 135 and a decorative cover side plate 136. The outer diameter of the boss 122 is smaller than the outer diameter of the end cover body 121, i.e. the outer side wall of the boss 122 is located inside the outer side wall of the end cover body 121, so that the outer side of the boss 122 can just form a ring-shaped space for accommodating the decorative cover side plate 136. After the decorative cover side plate 136 is sleeved outside the boss 122, the outer side wall of the decorative cover side plate 136 is flush with the outer side wall of the end cover body 121.

[0366] When the decorative cover side plate 136 is sleeved outside the boss 122, the positions of the screw 134 and the accommodating cavity 124 need to be roughly judged so as to align them, so as to ensure that the screw 134 is just inserted into the accommodating cavity 124 after the decorative cover side plate 136 is sleeved outside the boss 122, and then only relative rotation of the end cover 120 and the decorative cover 130 is needed to make the screw 134 rotate into the rotating groove 123.

[0367] In the above embodiment, the inner wall of the decorative cover side plate 136 and the outer side wall of the boss 122 are in contact, so that the inner wall of the decorative cover side plate 136 and the outer side wall of the boss 122 can guide each other during the relative rotation of the decorative cover 130 and the end cover 120, so that the relative rotation of the decorative cover 130 and the end cover 120 is more smooth.

[0368] Referring to Figure 20 , Figure 24 , Figure 25 and Figure 26 , in some embodiments, the screw 134 comprises a connecting arm 1341 and a rotating arm 1342, the connecting arm 1341 extends from the decorative cover end plate 135 to the side of the end cover 120, and the rotating arm 1342 extends from the end of the connecting arm 1341 away from the decorative cover end plate 135 to the side of the connecting arm 1341, and the rotating arm 1342 is configured to rotate into or out of the rotating groove 123 along the circumference of the filter component.

[0369] In particular, in Figure 26 the perspective view, the connecting arm 1341 extends from top to bottom, and the rotating arm 1342 is arc-shaped and extends from the bottom end of the connecting arm 1341 to the left side thereof. After the rotating arm 1342 rotates into the rotating groove 123 to a certain extent, the connecting arm 1341 will be blocked by the side cavity wall of the accommodating cavity 124 on the boss 122, at which time the end cover 120 and the decorative cover 130 cannot continue to rotate relative to each other, indicating that they have been locked in place.

[0370] Referring to Figure 5a , Figure 16 , Figure 17 and Figure 27An embodiment of this application provides a filter element 10 including a filter element body 100 and a handle 200. The filter element body 100 includes a filter component, a decorative cover 130, and a stop member 151 connected to the decorative cover 130. The decorative cover 130 is disposed at one axial end of the filter component. The handle 200 is rotatably connected to the decorative cover 130 so that the handle 200 is in a gripping state. Figure 16 (as shown) and storage status ( Figure 17 (As shown). The decorative cover 130 is configured to rotate axially relative to the filter element about the filter cartridge 10 to lock and unlock with the filter element. See also Figure 30 and Figure 31 In the gripped state, the stop member 151 is inserted into the filter element along the axial direction of the filter element 10 to suppress relative rotation between the filter element and the decorative cover 130.

[0371] In the above embodiment, the decorative cover 130 of the filter element 10 can rotate relative to the filter component around the axial direction of the filter element 10 to connect, lock, unlock, and separate from the filter component. Therefore, it can be quickly disassembled and replaced by rotating the decorative cover 130. The handle 200 has a gripping state and a storage state. In the gripping state, the entire filter element 10 can be pulled out of the water purifier for repair or replacement by pulling the handle 200. In the gripping state, the stop member 151 is inserted into the filter component along the axial direction of the filter element 10 to inhibit the relative rotation of the filter component and the decorative cover 130. Therefore, when the filter element 10 is pulled out by pulling the handle 200, even if the handle 200 is shaken, the stop member 151 can limit the relative rotation of the filter component and the decorative cover 130. The decorative cover 130 is not easy to rotate relative to the filter component with the shaking of the handle 200, thereby preventing the decorative cover 130 from loosening from the filter component due to rotation, making the disassembly of the filter element 10 more convenient.

[0372] See Figure 25 ,as well as Figure 29 to 31 In some embodiments, the filter component has a stop hole 1221. In the gripping state, the stop member 151 is inserted into the stop hole 1221; in the storage state, the stop member 151 is removed from the stop hole 1221.

[0373] In other embodiments, a stop hole may be provided at the end of the stop member 151, and a stop post matching the position and shape of the stop hole may be provided on the filter member. The decorative cover 130 may be restricted from rotating relative to the filter member by inserting the stop post into the stop hole provided on the stop member 151.

[0374] See Figure 5a , Figure 25 and Figure 29In some embodiments, the filter assembly comprises a filter part 110 for filtering, an end cover 120 fixedly installed at one end of the filter part 110, and a decorative cover 130 arranged at the end of the end cover 120 away from the filter part 110, and a stop hole 1221 arranged on the end cover 120.

[0375] The structures of the filter part 110 and the end cover 120 in the filter assembly are basically the same as those in the foregoing embodiments, and the specific contents can be referred to the foregoing embodiments. The difference between the present embodiment and the foregoing embodiments is that the end cover 120 is additionally provided with the stop hole 1221.

[0376] Specifically, the stop hole 1221 is formed by recessing from the end face of the boss 122 away from the end cover body 121.

[0377] Referring to Figure 5a , Figure 25 and Figure 29 In some embodiments, the plurality of sets of stop pieces 151 and the plurality of sets of stop holes 1221 are arranged in pairs.

[0378] In the holding state, each stop piece 151 is inserted into the corresponding stop hole 1221, so that the plurality of sets of stop pieces 151 and stop holes 1221 are jointly limited to rotate the decorative cover 130 relative to the filter assembly through the plurality of sets of plug-in cooperation, so as to improve the reliability of the stop.

[0379] In some embodiments, the cross-sectional shape of the stop piece 151 and the stop hole 1221 is circular, and the position of the stop hole 1221 on the filter assembly deviates from the rotation center of the relative rotation between the filter assembly and the decorative cover 130.

[0380] Specifically, the position of the stop hole 1221 on the filter assembly deviates from the rotation center of the relative rotation between the filter assembly and the decorative cover 130, that is, deviates from the central axis of the filter element 10. In this way, the rotation of the decorative cover 130 relative to the filter assembly can be limited by inserting the stop piece 151 into the stop hole 1221, and the decorative cover 130 can be prevented from being loosened from the filter assembly.

[0381] Alternatively, in some embodiments, the cross-sectional shape of the stop piece 151 and the stop hole 1221 is polygonal, oval, semicircular or multi-semicircular. In this way, the position of the stop hole 1221 on the filter assembly does not need to be limited, and the rotation of the decorative cover 130 relative to the filter assembly can still be inhibited.

[0382] Referring to Figure 29 to 31 In some embodiments, when the handle 200 is switched from the storage state to the holding state, the stop piece 151 is moved along the axial direction of the filter element towards the filter assembly by abutting against the handle 200 and is plugged into the filter assembly; when the handle 200 is switched from the holding state to the storage state, the stop piece 151 is separated from the filter assembly.

[0383] Specifically, when the handle 200 is switched from the storage state to the holding state, the stopper 151 is abutted by the handle 200 and moves along the axial direction of the filter core to the end cover 120 and is inserted into the stop hole 1221. When the handle 200 is switched from the holding state to the storage state, the stopper 151 exits the stop hole 1221. When the handle 200 is switched from the storage state to the holding state, the rotation of the handle 200 will push the stopper 151 to move and be inserted into the stop hole 1221, so that the rotation restriction of the decorative cover 130 is realized when the handle 200 reaches the holding state. In this way, no additional structure is needed to link between the handle 200 and the stopper 151, and the whole structure is simpler.

[0384] Referring to Figure 27 to 28 As mentioned above, the handle 200 has the holding part 201 and the rotating part 202 connected, and the rotating part 202 includes the rotating shaft 203 rotatably connected to the decorative cover 130. Further referring to Figure 28 to 31 In some embodiments, the rotating shaft 203 has a pushing member 2031 protruding from the outer periphery thereof, and when the handle 200 is switched from the storage state to the holding state, the pushing member 2031 pushes the stopper 151 to move along the axial direction of the filter core to the filter part and is inserted into the filter part.

[0385] Specifically, the pushing member 2031 includes the pushing body 20311 sleeved on the outside of the rotating shaft 203, and the pushing part 20312 connected to the pushing body 20311. The handle 200 is switched by the rotation of the rotating shaft 203. When the rotating shaft 203 rotates, the pushing part 20312 rotates synchronously and changes its orientation. When the rotating shaft 203 rotates to switch the handle 200 to the holding state, the pushing part 20312 will gradually align with the stopper 151 (the pushing part 20312 faces downward) and push the stopper 151 to move and be inserted into the stop hole 1221. When the rotating shaft 203 rotates to switch the handle 200 to the storage state, the pushing part 20312 changes to a horizontal orientation and separates from the stopper 151, and the stopper 151 exits the stop hole 1221.

[0386] Referring to Figure 28 to 31 In some embodiments, the stopper 151 is elastically connected to the decorative cover 130, and when the handle 200 is switched to the holding state, the stopper 151 extends to the filter part against the elastic force; and when the handle 200 is switched to the storage state, the stopper 151 is driven to retract by the elastic force.

[0387] Specifically, when the handle 200 is switched to the holding state, the pushing part 20312 pushes the stopper 151 to move and insert into the stop hole 1221, in which process, the elastic force needs to be overcome. When the handle 200 is switched to the storage state, after the pushing part 20312 is separated from the stopper 151, the stopper 151 will be automatically reset to exit the stop hole 1221 under the action of the elastic force.

[0388] In other embodiments, when the handle 200 is switched to the storage state, other structures can also be provided to drive the stopper 151 to move reversely and exit the stop hole 1221.

[0389] Referring to Figure 28 to 31 In some embodiments, the filter element body 100 comprises a stop elastic member 152 sleeved outside the stopper 151, and the two ends of the stop elastic member 152 abut against the stopper 151 and the decorative cover 130 respectively.

[0390] Specifically, when the handle 200 is switched to the holding state, the pushing part 20312 pushes the stopper 151 to move and compress the stop elastic member 152; when the handle 200 is switched to the storage state, the stop elastic member 152 has a tendency of elastic stretching and rebounding, and the stopper 151 will be automatically reset to exit the stop hole 1221 under the action of the rebounding force of the stop elastic member 152.

[0391] Referring to Figure 28 to 31 In some embodiments, the decorative cover 130 has a stopper mounting hole 1321; in the holding state, the stopper 151 partially extends out of the stopper mounting hole 1321; in the storage state, the length of the extended part of the stopper 151 is less than the length of the extended part in the holding state, and preferably, the stopper 151 is retracted into the stopper mounting hole 1321.

[0392] Specifically, the stop elastic member 152 sleeved outside the stopper 151 is also located in the stopper mounting hole 1321 and is limited to only extend and retract in the stopper mounting hole 1321. In the holding state, the bottom end of the stopper 151 extends downward out of the stopper mounting hole 1321 and inserts into the stop hole 1221; in the storage state, the bottom end of the stopper 151 is retracted upward into the stopper mounting hole 1321. By providing the stopper mounting hole 1321, the guidance and limiting of the movement process of the stopper 151 can be increased, and the movement process is more stable.

[0393] Referring to Figure 28 to 31In some embodiments, the hole wall of the stopper mounting hole 1321 is provided with two first stopper protrusions 13211 arranged along the axial direction of the filter element, the stopper 151 comprises a stopper body 1511 and a second stopper protrusion 1512 protruding from the outer wall of the stopper body 1511, and the two first stopper protrusions 13211 are used to block the second stopper protrusion 1512 to limit the movement stroke of the stopper 151.

[0394] Specifically, the stopper body 1511 is in a cylindrical shape, and the second stopper protrusion 1512 protrudes outward from the outer circumferential surface of the stopper body 1511. The two first stopper protrusions 13211 protrude from the upper end region and the lower end region of the hole wall of the stopper mounting hole 1321, respectively. In the holding state, when the stopper 151 extends downward, the first stopper protrusion 13211 at the lower end will block the second stopper protrusion 1512, thereby limiting the lower stroke end point of the stopper 151; in the storage state, when the stopper 151 retracts upward, the first stopper protrusion 13211 at the upper end will block the second stopper protrusion 1512, thereby limiting the upper stroke end point of the stopper 151.

[0395] The upper end of the aforementioned stopper elastic member 152 elastically abuts against the second stopper protrusion 1512, and the lower end elastically abuts against the first stopper protrusion 13211 at the lower end, thereby providing the aforementioned elastic force.

[0396] Referring to Figure 20 , Figure 25 and Figure 26 , in some embodiments, the decorative cover 130 and the filter component are connected and unlocked by a locking mechanism, the locking mechanism comprises a rotating groove 123 and a rotating buckle 134, one of the rotating groove 123 and the rotating buckle 134 is arranged on the filter component, and the other is arranged on the decorative cover 130, the filter component and the decorative cover 130 are configured to rotate relative to each other, so that the rotating buckle 134 is rotated into or out of the rotating groove 123 along the circumferential direction of the filter component.

[0397] In the present embodiment, the specific arrangement form of the rotating groove 123 and the rotating buckle 134 can refer to the foregoing embodiments. In the present embodiment, multiple sets of locking mechanisms can be arranged as in the foregoing embodiments, so that the multiple sets of locking mechanisms are arranged in an array along the circumferential direction of the filter component, and at least two sets of locking mechanisms are arranged at different positions in the radial direction of the filter component. Alternatively, in the present embodiment, only one set of locking mechanism can be arranged, or although multiple sets of locking mechanisms are arranged, there is no requirement that “at least two sets of locking mechanisms are arranged at different positions in the radial direction of the filter component”.

[0398] Referring to Figure 20 , Figure 32 and Figure 33In some embodiments, a first protrusion 1231 is protruded from the wall of the rotating slot 123 towards the inside of the rotating slot 123, and a second protrusion 1344 is protruded from the rotating buckle 134, when the rotating buckle 134 is rotated into the rotating slot 123, the second protrusion 1344 is located at the side of the first protrusion 1231 which is away from the entrance of the rotating slot 123, and the end of the first protrusion 1231 which is away from the entrance of the rotating slot 123 abuts against the end of the second protrusion 1344 which is close to the entrance of the rotating slot 123.

[0399] In Figure 33 the perspective view, the rotating buckle 134 is rotated to the left to rotate into the rotating slot 123, and is rotated to the right to rotate out of the rotating slot 123. When the rotating buckle 134 is rotated into the rotating slot 123, the second protrusion 1344 is located at the left side of the first protrusion 1231, and the left end of the first protrusion 1231 abuts against the right end of the second protrusion 1344. In this way, after the rotating buckle 134 is rotated into the rotating slot 123, the rotating buckle 134 cannot be easily rotated in the reverse direction to rotate out of the rotating slot 123 by the blocking of the first protrusion 1231 to the second protrusion 1344, so that the rotation restriction of the decorative cover 130 is enhanced. Of course, it should be noted that when the rotation restriction of the decorative cover 130 needs to be released, the decorative cover 130 is reversely rotated with a large rotation force, and the rotating buckle 134 can still rotate out of the rotating slot 123.

[0400] Referring to Figure 20 , Figure 32 and Figure 33 In some embodiments, the end of the first protrusion 1231 which is away from the entrance of the rotating slot 123 is a first stop surface 12311 which is inclined relative to the axial direction of the filter element, the end of the second protrusion 1344 which is close to the entrance of the rotating slot 123 is a second stop surface 13441 which is inclined relative to the axial direction of the filter element, and the first stop surface 12311 is parallel to the second stop surface 13441.

[0401] In Figure 33 the perspective view, the first stop surface 12311 is the left end surface of the first protrusion 1231, and the second stop surface 13441 is the right end surface of the second protrusion 1344. The inclination angles of the first stop surface 12311 and the second stop surface 13441 are the same, so that they are parallel to each other. In this way, when the first stop surface 12311 abuts against the second stop surface 13441, a larger contact area can be obtained, and the stop effect is better. Furthermore, when the rotation restriction of the decorative cover 130 needs to be released, the decorative cover 130 is reversely rotated with a large rotation force, and the rotating buckle 134 can more easily rotate out of the rotating slot 123 under the cooperation of the two inclined surfaces.

[0402] Referring to Figure 33 , preferably, in some embodiments, the inclination degree of the aforementioned first introduction inclined surface 1343 is greater than the inclination degree of the second stop surface 13441.

[0403] Referring to Figure 20 , Figure 32 and Figure 33 In some embodiments, the two groups of locking mechanisms are arranged 180 degrees apart along the circumference of the filter component, and among the two groups of locking mechanisms, the group of the snap-fitting 134 and the rotating groove 123 with larger radial dimension are respectively provided with the second protrusion 1344 and the first protrusion 1231.

[0404] It can be understood that when the snap-fitting 134 is screwed into and out of the rotating groove 123, the second protrusion 1344 and the first protrusion 1231 will be pressed against each other, causing the first protrusion 1231 to have a tendency to turn upward and the second protrusion 1344 to have a tendency to turn downward. By selecting to correspondingly arrange the second protrusion 1344 and the first protrusion 1231 on the group of the snap-fitting 134 and the rotating groove 123 with larger radial dimension, the snap-fitting 134 and the rotating groove 123 are less likely to be deformed and broken by excessive pressing during the mutual pressing of the second protrusion 1344 and the first protrusion 1231, and the overall strength will be higher. Of course, in other embodiments, the second protrusion 1344 and the first protrusion 1231 can also be correspondingly arranged on both groups of the snap-fitting 134 and the rotating groove 123.

[0405] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0406] The above-described 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 application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all 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, characterized by, The filter element comprises: a filter component having a filter portion (110) for filtering; and a decorative cover (130) arranged at one axial end of the filter component, the decorative cover (130) being connected to the filter component by a locking mechanism to be locked and unlocked separately; the locking mechanism comprises a rotating groove (123) and a rotating buckle (134), one of the rotating groove (123) and the rotating buckle (134) is arranged on the filter component, and the other is arranged on the decorative cover (130), the filter component and the decorative cover (130) are configured to rotate relative to each other, so that the rotating buckle (134) is rotated into or out of the rotating groove (123) along the circumferential direction of the filter component; a plurality of sets of the locking mechanism are arranged in an array along the circumferential direction of the filter component, and at least two sets of the locking mechanism are arranged at different positions in the radial direction of the filter component.

2. The filter cartridge of claim 1, wherein, The distance between the rotating buckle (134) in at least two sets of the locking mechanism and the central axis of the filter element is different.

3. The filter cartridge of claim 1 wherein, At least two sets of the locking mechanism are spaced 180 degrees apart along the circumferential direction of the filter component.

4. The filter cartridge of claim 1, wherein, A plurality of sets of the locking mechanism are uniformly spaced along the circumferential direction of the filter component.

5. The filter cartridge of claim 1 wherein, Both the rotating groove (123) and the rotating buckle (134) are arc-shaped and extend along the circumferential direction of the filter component; In the two sets of the locking mechanism arranged at different positions in the radial direction of the filter component, the inner diameters of the two rotating buckles (134) differ by 1mm-5mm.

6. The filter cartridge of claim 1, wherein, In the rotating direction of the rotating buckle (134), the size of the rotating groove (123) in the axial direction of the filter component gradually decreases; The rotating buckle (134) has a first guide slope (1343) opposite to the groove wall of the rotating groove (123) in the front end region in the rotating direction of the rotating buckle (134), and the distance between the first guide slope (1343) and the groove wall of the rotating groove (123) gradually increases in the rotating direction; Both ends of the rotating buckle (134) in the axial direction of the filter component are provided with the first guide slope (1343).

7. The filter cartridge of claim 1 wherein, The rotating groove (123) is arranged on the filter component, and the rotating buckle (134) is arranged on the decorative cover (130); The filter component comprises an end cover (120) fixedly installed at one end of the filter portion (110), and the decorative cover (130) is arranged at one end of the end cover (120) away from the filter portion (110); The rotating groove (123) is arranged on the end cover (120), and the rotating buckle (134) is arranged on the decorative cover (130); The end cover (120) comprises an end cover body (121) connected to the filter part (110), and a boss (122) protruding from an end of the end cover body (121) away from the filter part (110), a part of the boss (122) is recessed towards an end away from the end cover body (121) to form the rotating groove (123), an inlet side of the rotating groove (123) is provided with a containing cavity (124) in communication with the rotating groove (123), the containing cavity (124) penetrates the boss (122) along the axial direction of the filter element, and the screw buckle (134) can be screwed into the rotating groove (123) through the containing cavity (124); The distances from the screw buckles (134) in at least two groups of the locking mechanisms to the central axis of the filter element are different, and the distances from the corresponding at least two containing cavities (124) to the central axis of the filter element are different; The rotating groove (123) and the containing cavity (124) are arranged on the outer edge of the boss (122), so that the rotating groove (123) and the containing cavity (124) are both open on the outside; The decorative cover (130) comprises a decorative cover end plate (135), and a decorative cover side plate (136) extending from the decorative cover end plate (135) towards the side of the end cover (120), the decorative cover side plate (136) can be sleeved outside the boss (122), and the inner wall of the decorative cover side plate (136) is attached to the outer side wall of the boss (122); The screw buckle (134) comprises a connecting arm (1341) and a screwing-in arm (1342), the connecting arm (1341) extends from the decorative cover end plate (135) towards the side of the end cover (120), and the screwing-in arm (1342) extends from an end of the connecting arm (1341) away from the decorative cover end plate (135) towards the side of the connecting arm (1341), and the screwing-in arm (1342) is configured to be screwed into or out of the rotating groove (123) along the circumferential direction of the filter element.

8. The filter cartridge of claim 7, wherein, The filter element further comprises: a positioning mechanism (140) connected to the decorative cover (130); and a handle (200) rotationally connected to the decorative cover (130), so that the handle (200) has a holding state and a storage state; The positioning mechanism (140) can exert an elastic force on the handle (200) to keep the handle (200) in the holding state by abutting against the decorative cover (130), and the positioning mechanism (140) can exert an elastic force on the handle (200) to keep the handle (200) in the storage state by abutting against the decorative cover (130); The handle (200) has a first positioning surface (206) and a second positioning surface (207); the positioning mechanism (140) comprises a top block (141) elastically connected to the decorative cover (130); when the handle (200) is rotated to the first positioning surface (206) facing the top block (141), the top block (141) elastically abuts against the first positioning surface (206) to make the handle (200) abut against the decorative cover (130); when the handle (200) is rotated to the second positioning surface (207) facing the top block (141), the top block (141) elastically abuts against the second positioning surface (207) to make the handle (200) abut against the decorative cover (130); The handle (200) has a first positioning surface (206) and a second positioning surface (207); the positioning mechanism (140) comprises a top block (141) elastically connected to the decorative cover (130); when the handle (200) is rotated to the first positioning surface (206) facing the top block (141), the top block (141) elastically abuts against the first positioning surface (206) to make the handle (200) abut against the decorative cover (130); when the handle (200) is rotated to the second positioning surface (207) facing the top block (141), the top block (141) elastically abuts against the second positioning surface (207) to make the handle (200) abut against the decorative cover (130); The top block (141) has a positioning inclined surface (1411), the first positioning surface (206) and the second positioning surface (207) are adjacently arranged and form an acute angle therebetween; when the rotating portion (202) is rotated to the first positioning surface (206) facing the top block (141), the positioning inclined surface (1411) elastically abuts against the first positioning surface (206) and the two inclined surfaces have the same inclination direction; when the rotating portion (202) is rotated to the second positioning surface (207) facing the top block (141), the positioning inclined surface (1411) elastically abuts against the second positioning surface (207) and the two inclined surfaces have the same inclination direction; The positioning inclined surface (1411) comprises a first inclined surface portion (14111) and a second inclined surface portion (14112) having different inclination angles; when the rotating portion (202) is rotated to the first positioning surface (206) facing the top block (141), the first inclined surface portion (14111) elastically abuts against the first positioning surface (206); when the rotating portion (202) is rotated to the second positioning surface (207) facing the top block (141), the second inclined surface portion (14112) elastically abuts against the second positioning surface (207); The first positioning surface (206) and the second positioning surface (207) are roundedly connected through a transition surface (208); The positioning mechanism (140) comprises a positioning elastic member (142), two ends of the positioning elastic member (142) are connected to the top block (141) and the decorative cover (130) respectively, the rotating part (202) is located on the side of the top block (141) away from the positioning elastic member (142), and the positioning elastic member (142) is configured to always apply an elastic force of abutting against the rotating part (202) to the top block (141); The rotating part (202) comprises a rotating shaft (203) rotatably connected to the decorative cover (130), and a cam (205) coaxially connected to the rotating shaft (203), the first positioning surface (206) and the second positioning surface (207) are located on the cam (205), and the top block (141) always elastically abuts against the cam (205) during rotation of the rotating shaft (203); The filter element comprises a position limiting member (151) connected to the decorative cover (130), in the holding state, the position limiting member (151) is inserted into the end cover (120) along the axial direction of the filter element, so as to inhibit relative rotation of the end cover (120) and the decorative cover (130); The end cover (120) has a position limiting hole (1221), in the holding state, the position limiting member (151) is inserted into the position limiting hole (1221), and in the storage state, the position limiting member (151) is withdrawn from the position limiting hole (1221); A plurality of sets of the position limiting member (151) and the position limiting hole (1221) are arranged in pairs; The cross-sectional shape of the position limiting member (151) and the position limiting hole (1221) is circular, and the position of the position limiting hole (1221) on the end cover (120) deviates from the rotation center of the relative rotation of the end cover (120) and the decorative cover (130); Alternatively, the cross-sectional shape of the position limiting member (151) and the position limiting hole (1221) is polygonal, oval, semicircular or multi-semicircular; When the handle (200) is switched from the storage state to the holding state, the position limiting member (151) is moved along the axial direction of the filter element towards the end cover (120) by abutting against the handle (200) and is inserted into the end cover (120), and when the handle (200) is switched from the holding state to the storage state, the position limiting member (151) is separated from the end cover (120); The position limiting member (151) is elastically connected to the decorative cover (130), when the handle (200) is switched to the holding state, the position limiting member (151) extends towards the end cover (120) against the elastic force, and when the handle (200) is switched to the storage state, the position limiting member (151) is driven to retract by the elastic force. The filter element comprises a stop elastic member (152) sleeved outside the stop member (151), and two ends of the stop elastic member (152) abut against the stop member (151) and the decorative cover (130) respectively; The decorative cover (130) is provided with a stop member mounting hole (1321); in the holding state, the stop member (151) partially protrudes outside the stop member mounting hole (1321); in the storage state, the stop member (151) is retracted into the stop member mounting hole (1321); The hole wall of the stop member mounting hole (1321) is provided with two first stop protrusions (13211) arranged along the axial direction of the filter element, the stop member (151) comprises a stop member main body (1511), and a second stop protrusion (1512) is protruded on the outer wall of the stop member main body (1511), the two first stop protrusions (13211) are used for blocking the second stop protrusion (1512) to limit the movement stroke of the stop member (151); The first protrusion (1231) is protruded on the groove wall of the rotating groove (123) towards the inside of the groove, and the second protrusion (1344) is protruded on the rotating buckle (134), after the rotating buckle (134) is rotated into the rotating groove (123), the second protrusion (1344) is located on the side of the first protrusion (1231) away from the entrance of the rotating groove (123), and the end of the first protrusion (1231) away from the entrance of the rotating groove (123) abuts against the end of the second protrusion (1344) close to the entrance of the rotating groove (123); The end of the first protrusion (1231) away from the entrance of the rotating groove (123) is a first stop surface (12311) inclined relative to the axial direction of the filter element, and the end of the second protrusion (1344) close to the entrance of the rotating groove (123) is a second stop surface (13441) inclined relative to the axial direction of the filter element, and the first stop surface (12311) is parallel to the second stop surface (13441); The two groups of locking mechanisms are arranged at intervals of 180 degrees along the circumferential direction of the filter element, and the rotating buckle (134) and the rotating groove (123) of at least one group of locking mechanisms with a larger radial dimension are respectively provided with the second protrusion (1344) and the first protrusion (1231) correspondingly.

9. A water purifier characterized by comprising: The water purifier comprises the filter element according to any one of claims 1 to 8.

10. The water purifier according to claim 9, wherein The filter element (10) comprises a filter element body (100), and the water purifier further comprises: A machine body (20) is configured with a containing cavity (21) with an opening, and the filter element body (100) is plugged into the containing cavity (21) through the opening; The machine body (20) is configured with a containing cavity (21) with an opening, and the filter element body (100) is plugged into the containing cavity (21) through the opening; The locking assembly (30) comprises a lock catch (31) connected to the body (20); the lock catch (31) has a blocking position and an unlocking position; when the lock catch (31) is in the blocking position, the stop portion of the lock catch (31) is arranged on the pulling-out path of the filter element body (100) relative to the accommodating cavity (21); when the lock catch (31) is in the unlocking position, the stop portion of the lock catch (31) is away from the pulling-out path relative to the position in the blocking position; The water purifier further comprises a trigger (2), which is configured to drive the lock catch (31) to switch from the blocking position to the unlocking position; The locking assembly (30) further comprises a first elastic member (32), which is configured to always apply an elastic force to the lock catch (31) to keep the lock catch (31) in the blocking position; the trigger (2) is configured to drive the lock catch (31) to overcome the elastic force to switch the lock catch (31) from the blocking position to the unlocking position; The lock catch (31) is rotatably connected to the body (20) about a first axis and is switched between the blocking position and the unlocking position by rotation; The side of the lock catch (31) facing the filter element (10) is provided with a protruding portion (310) to form the stop portion; When the lock catch (31) is rotated to the blocking position, the protruding portion (310) is arranged on the pulling-out path; when the lock catch (31) is rotated to the unlocking position, the protruding portion (310) is away from the pulling-out path relative to the position in the blocking position; The water purifier further comprises a scratch-preventing member, which is configured to apply a force to the lock catch (31) to limit the movement of the stop portion of the lock catch (31) towards the pulling-out path when the lock catch (31) is switched to the unlocking position, so that the lock catch (31) remains in the unlocking position; The scratch-preventing member is further configured to be located on the side of the lock catch (31) away from the pulling-out path when the lock catch (31) is in the blocking position; The scratch-preventing member is used to move in the pulling-out direction of the filter element body (100) when the lock catch (31) is rotated to the position where the stop portion of the lock catch (31) is away from the pulling-out path, and is arranged on the side of the lock catch (31) facing the pulling-out path, so that the lock catch (31) remains in the unlocking position; Further comprising: an ejection member (51) arranged in the accommodating cavity (21), which is used to eject the scratch-preventing member in the pulling-out direction when the filter element moves in the pulling-out direction; Further comprising: a second elastic member (53) and an elastic member positioning seat (54); The elastic member positioning seat (54) is connected to the accommodating cavity (21); The second elastic member (53) is connected between the ejection member (51) and the elastic member positioning seat (54) and is used to always apply an elastic force to the ejection member (51) away from the elastic member positioning seat (54); The water purifier (1000) further comprises an ejection assembly (50), the ejection assembly (50) comprises an ejector (51) arranged in the accommodating cavity (21), the ejector (51) is used for moving from a first position to a second position along an extraction direction of the filter element (10) when the lock catch (31) rotates to the position where the stop portion just leaves the extraction path, so as to eject the filter element (10) along the extraction direction; The ejection assembly (50) comprises a pull rod (52), the pull rod (52) is connected to the ejector (51) and extends through the accommodating cavity (21) and towards the lock catch (31); When the ejector (51) is in the second position, the pull rod (52) abuts against the lock catch (31), so that the lock catch (31) is kept in the unlocked position; The pull rod (52) forms the scratch-proof part; The water purifier comprises a hollow body (20), a first filter element (11), a second filter element (12) and a third filter element (103) arranged in parallel in the body (20); the first filter element (11), the second filter element (12) and the third filter element (103) are sequentially connected and are all cylindrical; the diameter of the second filter element (12) is greater than or equal to the diameters of the first filter element (11) and the third filter element (103); The first filter element (11) and the third filter element (103) are arranged in sequence and spaced apart along a left-right direction; the second filter element (12) is located above the first filter element (11) and the third filter element (103); In a top-bottom direction, a lowermost point (D1) of the second filter element is arranged on a lower side compared with uppermost points (C1) of the first filter element and (E1) of the third filter element, and is arranged on an upper side compared with axes (O1) of the first filter element and (O3) of the third filter element; In the left-right direction, a leftmost point (D2) of the second filter element is on a left side compared with the axis (O1) of the first filter element, and a rightmost point (D3) of the second filter element is on a right side compared with the axis (O3) of the third filter element; the top-bottom direction, the left-right direction and the axis (O1) of the first filter element are perpendicular to each other; The distance d1 between the axis (O1) of the first filter element and the axis (O2) of the second filter element and the distance d2 between the axis (O3) of the third filter element and the axis (O2) of the second filter element satisfy d1=d2; The water purifier further comprises: A pull ring (510) connected to an inner wall of the accommodating cavity (21), and an insertion direction end of the filter element (10) can be inserted into the pull ring (510); The pull ring (510) is provided with a guide inclined surface (5101) inclined to a radial outer side of the pull ring (510) on a side facing the insertion direction end of the filter element (10), so as to guide the insertion of the insertion direction end of the filter element (10); The pull ring (510) is configured to be movable along an insertion direction of the filter element (10) so as to be driven by an insertion operation of the filter element (10) and moved a certain distance along the insertion direction; An end portion of the insertion direction of the filter element (10) is configured as a reduced diameter end portion (101) to form a shoulder structure (1011) on the filter element (10); at least a part of the surface profile of the inner periphery side of the pull ring (510) matches the outer periphery profile of the reduced diameter end portion (101); The shoulder structure (1011) is used to drive the pull ring (510) to move in the insertion direction within the accommodating cavity (21) when the pull ring (510) is contacted during the insertion process of the filter element (10); The pull ring (510) further comprises a circumferential matching surface (5100) connected with the guide slope (5101), and the guide slope (5101) and the circumferential matching surface (5100) jointly define the surface of the inner periphery side of the pull ring (510); An end surface of the shoulder structure (1011) facing the guide slope (5101) is configured as a slope capable of being in contact with the guide slope (5101), and the circumferential matching surface (5100) is in contact with the outer periphery surface of the reduced diameter end portion (101).

Images