Water purifier

Abstract

The utility model relates to a water purifier. The water purifier comprises a filter element; the machine body is provided with a containing cavity with an opening, the filter element is matched with the containing cavity in an inserting and pulling mode through the opening, and a first matching valve and a second matching valve which can be matched in an inserting and connecting mode are arranged at the end of the filter element in the inserting direction of the filter element and the corresponding position of the containing cavity respectively; the pull ring is connected to the inner wall of the containing cavity, and the end of the filter element in the insertion direction can be inserted into the pull ring; wherein one surface, facing the end part of the insertion direction of the filter element, of the pull ring is provided with a guide inclined surface which is inclined towards the radial outer side of the pull ring so as to guide the insertion of the end part of the insertion direction of the filter element. According to the water purifier, the mounting reliability of the filter element can be improved, and the mounting process is relatively simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification equipment technical field, especially a water purifier. BACKGROUND

[0002] With the improvement of living standards, people's requirements on water quality are gradually improved, which makes the water purifier develop more and more. The water purification effect of the water purifier is mainly realized by filter core filtering. In the water purifier of the related art, a machine body is usually arranged in the shell, the machine body is internally provided with a horizontally arranged accommodating cavity, and the filter core is inserted into the accommodating cavity through an opening on the accommodating cavity from the outside. However, during the insertion process of the filter core, the insertion end of the filter core is often slightly displaced downward due to the action of gravity, which makes the installation operation of the filter core more inconvenient, and even the filter core cannot be installed in place. SUMMARY

[0003] Therefore, it is necessary to provide a water purifier which can improve the installation reliability of the filter core and has a relatively simple installation process.

[0004] The embodiment of the application provides a water purifier, which comprises:

[0005] a filter core;

[0006] a machine body which is configured with an accommodating cavity with an opening, the filter core is plugged and pulled with the accommodating cavity through the opening, and the end part of the filter core along the insertion direction and the corresponding position of the accommodating cavity are respectively provided with a first matching valve and a second matching valve which can be plugged and matched with each other; and

[0007] a pull ring which is connected to the inner wall of the accommodating cavity, and the insertion direction end part of the filter core can be inserted into the pull ring;

[0008] wherein one side of the pull ring facing the insertion direction end part of the filter core is provided with a guide inclined surface inclined to the radial outside of the pull ring, so as to guide the insertion of the insertion direction end part of the filter core.

[0009] In one of the embodiments, the pull ring is configured to be relatively slidable with the inner wall of the accommodating cavity along the insertion direction of the filter core, so as to be driven by the insertion operation of the filter core and moved a certain distance along the insertion direction.

[0010] In one of the embodiments, the insertion direction end part of the filter core is configured as a reduced diameter end part to form a shoulder structure on the filter core; and at least part of the surface profile of the inner circumferential side of the pull ring matches the outer circumferential profile of the reduced diameter end part.

[0011] The shoulder structure is used to drive the pull ring to move in the accommodating cavity along the insertion direction when the filter core contacts the pull ring during the insertion process of the filter core.

[0012] In one of the embodiments, the pull ring further comprises a circumferential matching surface in continuation with the guide slope, and the guide slope and the circumferential matching surface jointly define the surface of the inner circumferential side of the pull ring.

[0013] The end surface of the shaft shoulder structure facing the guide slope is configured as a slope capable of being in contact with the guide slope, and the circumferential matching surface is in contact with the outer circumferential surface of the reduced diameter end portion.

[0014] In one of the embodiments, the pull ring comprises an annular inner wall, a guide wall and an outer wall, the inner wall being arranged at the radially inner side of the outer wall; the radially two-side end portions of the guide wall are connected to the axially same-side end portions of the inner wall and the outer wall, respectively.

[0015] The inner circumferential surface of the inner wall forms the circumferential matching surface, and the inner circumferential surface of the guide wall forms the guide slope.

[0016] In one of the embodiments, a reinforcing rib is further connected between the surfaces of the inner wall and the outer wall facing each other.

[0017] In one of the embodiments, a guide lug is arranged on the circumferential outer side of the pull ring.

[0018] A guide groove is arranged on the cavity wall of the accommodating cavity at a position corresponding to the guide lug, and the guide lug and the corresponding guide groove are in guided cooperation along the insertion direction.

[0019] The guide groove comprises two first limiting walls oppositely arranged along the insertion direction.

[0020] In one of the embodiments, a second elastic member is arranged between the pull ring and the bottom wall of the accommodating cavity, and the second elastic member is used to always apply an elastic force to the pull ring away from the bottom wall of the accommodating cavity.

[0021] In one of the embodiments, an elastic member positioning seat is further arranged on the bottom wall of the accommodating cavity, and the two ends of the second elastic member are connected to the elastic member positioning seat and the guide lug, respectively.

[0022] In one of the embodiments, the filter element comprises a filter element body.

[0023] The water purifier further comprises:

[0024] A locking assembly comprising a lock catch connected to the machine body; the lock catch has a blocking position and an unlocking position, when the lock catch is in the blocking position, the stop portion of the lock catch is arranged on the pulling-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 pulling-out path relative to the position in the blocking position; and

[0025] A trigger member configured to drive the lock catch to switch from the blocking position to the unlocking position.

[0026] In one of the embodiments, a second elastic member is arranged between the pull ring and the bottom wall of the accommodating cavity, and the second elastic member pushes the pull ring in the pulling-out direction of the filter element when the lock catch is in the unlocking position.

[0027] In one of the embodiments, the lock is rotatably connected to the body about the first axis and switches between the blocking position and the unlocking position by rotation;

[0028] The side of the lock facing the filter element is provided with a protrusion;

[0029] When the lock is in the blocking position, the protrusion is located on the pull-out path; when the lock is in the unlocking position, the protrusion is away from the pull-out path relative to the position in the blocking position.

[0030] In one of the embodiments, the pull ring is further provided with a pull rod, the pull rod is connected to the guide lug and extends towards the lock through the first limiting wall;

[0031] When the lock is in the unlocking position, the pull rod abuts against the lock to keep the lock in the unlocking position.

[0032] In one of the embodiments, the number of filter elements and pull rings is three, the body comprises a body main body, the body main body comprises a first filter element frame, a second filter element frame and a third filter element frame, and a bottom plate connected to one end of the first filter element frame, the second filter element frame and the third filter element frame;

[0033] The first filter element frame, the second filter element frame and the third filter element frame are sequentially connected end to end, and the inner contour shapes of the first filter element frame, the second filter element frame and the third filter element frame respectively match the partial circumferential outer contour shapes of the three filter elements, so that the first filter element frame, the second filter element frame and the third filter element frame and the bottom plate respectively define three accommodation cavities communicating with each other;

[0034] The three pull rings are respectively arranged on the inner walls of the first filter element frame, the second filter element frame and the third filter element frame.

[0035] In one of the embodiments, the first filter element frame surrounds the outside of more than half of the circumferential region of the first filter element; the second filter element frame surrounds the outside of more than half of the circumferential region of the second filter element; and the third filter element frame surrounds the outside of more than half of the circumferential region of the third filter element.

[0036] In one of the embodiments, the accommodation cavity comprises a first cavity section and a second cavity section successively arranged along the insertion direction;

[0037] When the accommodation cavity is projected towards the bottom wall of the accommodation cavity, the outer contour of the projection of the first cavity section is located outside the outer contour of the projection of the second cavity section; and the second cavity section is used for supporting the reduced diameter end.

[0038] In one of the embodiments, the length of the reduced diameter end along the insertion direction is smaller than the length of the second cavity section.

[0039] In one of the embodiments, the central axis of the pull ring coincides with the central axis of the corresponding accommodation cavity.

[0040] In one of the embodiments, the number of filter cartridges is three, and the three filter cartridges are defined as a first filter cartridge, a second filter cartridge and a third filter cartridge; the first filter cartridge, the second filter cartridge and the third filter cartridge are sequentially connected in series and are all configured in a cylindrical shape; the diameter of the second filter cartridge is greater than or equal to the diameters of the first filter cartridge and the third filter cartridge;

[0041] In one of the embodiments, the first filter cartridge and the third filter cartridge are sequentially and spacedly arranged along a left-right direction; the second filter cartridge is located at an upper side of the first filter cartridge and the third filter cartridge;

[0042] In one of the embodiments, a lowermost point of the second filter cartridge is arranged at a lower side compared with uppermost points of the first filter cartridge and the third filter cartridge, and is arranged at an upper side compared with the axes of the first filter cartridge and the third filter cartridge along an up-down direction;

[0043] In one of the embodiments, a leftmost point of the second filter cartridge is arranged at a left side compared with the axis of the first filter cartridge, and a rightmost point of the first filter cartridge is arranged at a right side compared with the axis of the third filter cartridge along a left-right direction; the up-down direction and the left-right direction are perpendicular to the axes of the first filter cartridge and the third filter cartridge respectively.

[0044] In one of the embodiments, the distance between the axis of the first filter cartridge and the axis of the second filter cartridge is equal to the distance between the axis of the third filter cartridge and the axis of the second filter cartridge.

[0045] In one of the embodiments, the diameter of the first filter cartridge is the same as the diameter of the third filter cartridge, and the diameter of the second filter cartridge is greater than the diameter of the first filter cartridge.

[0046] In one of the embodiments, the machine body is configured with three accommodating cavities, and the first filter cartridge, the second filter cartridge and the third filter cartridge are accommodated in the three accommodating cavities respectively;

[0047] The sides close to each other of the three accommodating cavities are communicated with each other.

[0048] In one of the embodiments, the water purifier further comprises a hot water container, a booster pump, and a purified water tank arranged between the hot water container and the booster pump; the purified water tank is communicated with the hot water container, and the booster pump is communicated between the first filter cartridge and the second filter cartridge;

[0049] The hot water container, the purified water tank and the booster pump are arranged at an upper side of the filter cartridge assembly, and the purified water tank at least partially surrounds the booster pump.

[0050] In one of the embodiments, the filter cartridge comprises a filter cartridge body, and the filter cartridge body comprises:

[0051] a filtering component having a filtering part for filtering; and

[0052] a decorative cover arranged at an axial end of the filtering component, and the decorative cover is connected with the filtering component through a locking mechanism to be locked and unlocked and separated;

[0053] The locking mechanism comprises a rotating groove and a rotating buckle, one of which 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 screwed into or out of the rotating groove along the circumference of the filter component;

[0054] A plurality of sets of locking mechanisms are arranged in an array along the circumference 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.

[0055] In one of the embodiments, the rotating buckles of the at least two sets of locking mechanisms are different in distance from the central axis of the filter element.

[0056] In one of the embodiments, the at least two sets of locking mechanisms are spaced 180 degrees apart along the circumference of the filter component.

[0057] In one of the embodiments, the filter element comprises a filter element body, and the filter element body comprises a mounting shell;

[0058] The filter element further comprises a positioning mechanism connected to the mounting shell.

[0059] The water purifier further comprises a handle rotationally connected to the mounting shell, so that the handle has a holding state and a storage state.

[0060] The positioning mechanism can exert an elastic force on the handle to keep the handle in the holding state by abutting against the mounting shell; and the positioning mechanism can exert an elastic force on the handle to keep the handle in the storage state by abutting against the mounting shell.

[0061] In one of the embodiments, the handle has a first positioning surface and a second positioning surface; when the handle is rotated to the first positioning surface facing the positioning mechanism, the positioning mechanism can exert an elastic force on the first positioning surface to make the handle abut against the mounting shell; and when the handle is rotated to the second positioning surface facing the positioning mechanism, the positioning mechanism can exert an elastic force on the second positioning surface to make the handle abut against the mounting shell.

[0062] In one of the embodiments, the positioning mechanism comprises a top block elastically connected to the mounting shell; 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 mounting shell; and 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 mounting shell.

[0063] In one of the embodiments, the filter element comprises a filter element body, the filter element body comprises a filter component, a decorative cover, and a stopper connected to the decorative cover, the decorative cover is arranged at one axial end of the filter component, and the decorative cover is configured to rotate relative to the filter component around the axis of the filter element to connect and lock or unlock the filter component.

[0064] The water purifier further comprises a handle which is rotatably connected to the decorative cover so that the handle has a holding state and a storage state.

[0065] In the holding state, the stopper is inserted into the filter component along the axial direction of the filter core to prevent the filter component from rotating relative to the decorative cover.

[0066] In one of the embodiments, the filter component has a stop hole, and in the holding state, the stopper is inserted into the stop hole, while in the storage state, the stopper is withdrawn from the stop hole.

[0067] In one of the embodiments, the plurality of sets of stoppers and the plurality of sets of stop holes are arranged in pairs.

[0068] In one of the embodiments, the filter component comprises a filter part for filtering and an end cover fixedly installed at one end of the filter part, and the decorative cover is arranged at the end of the end cover away from the filter part, and the stop hole is arranged on the end cover.

[0069] In one of the embodiments, the cross-sectional shape of the stopper and the stop hole is circular, and the position of the stop hole on the filter component is deviated from the rotation center of the filter component relative to the decorative cover.

[0070] Alternatively, the cross-sectional shape of the stopper and the stop hole is polygonal, elliptical, semicircular or multi-semicircular.

[0071] In one of the embodiments, when the handle is switched from the storage state to the holding state, the stopper is moved along the axial direction of the filter core towards the filter component by abutting against the handle and is inserted into the filter component, and when the handle is switched from the holding state to the storage state, the stopper is separated from the filter component.

[0072] In one of the embodiments, the stopper is elastically connected to the decorative cover, and when the handle is switched to the holding state, the stopper is extended towards the filter component against the elastic force, and when the handle is switched to the storage state, the stopper is retracted by the elastic force.

[0073] In one of the embodiments, the filter core body comprises a stop elastic member sleeved outside the stopper, and the two ends of the stop elastic member abut against the stopper and the decorative cover respectively.

[0074] In one of the embodiments, the decorative cover has a stopper mounting hole, and in the holding state, the stopper partially extends out of the stopper mounting hole, while in the storage state, the stopper is retracted into the stopper mounting hole.

[0075] In one of the embodiments, the hole wall of the stopper mounting hole is provided with two first stop protrusions arranged at intervals along the axial direction of the filter core, and the stopper comprises a stopper main body and a second stop protrusion protruding from the outer wall of the stopper main body, and the two first stop protrusions are used to block the second stop protrusion to limit the movement stroke of the stopper.

[0076] The water purifier has the beneficial effects of the above:

[0077] The end of the filter element in the insertion direction and the corresponding position of the accommodating cavity are respectively provided with first and second matching valves capable of being matched with each other, so that when the filter element is inserted into the accommodating cavity through the opening, the first and second matching valves can be matched with each other, and when the filter element is pulled out of the accommodating cavity, the matching of the first and second matching valves can be released, in other words, the filter element and the accommodating cavity in the present application are directly inserted, and the matching or disengagement of the first and second matching valves of the filter element and the accommodating cavity can be completed by inserting or pulling out the filter element in one direction, so that the installation is simple and the accurate positioning of the first and second matching valves can be easily ensured.

[0078] In addition, the end of the filter element in the insertion direction can be inserted into the pull ring by connecting the pull ring to the inner wall of the accommodating cavity, so that when the filter element enters the accommodating cavity, the insertion end of the filter element will be supported by the pull ring and will not droop. Compared with the prior art, the installation difficulty is greatly reduced and the operation is easy. And the relative positioning with the accommodating cavity can be realized by the pull ring, so that the relative position of the first and second matching valves can be fixed, the accurate positioning of the first and second matching valves can be easily ensured, the filter element can be easily installed in place, and the installation reliability of the filter element is improved.

[0079] Further, one side of the pull ring facing the end of the filter element in the insertion direction is provided with a guide slope inclined to the radial outside of the pull ring to guide the insertion of the end of the filter element in the insertion direction, so that the insertion end of the filter element can enter the pull ring. BRIEF DESCRIPTION OF DRAWINGS

[0080] Figure 1 The structure schematic diagram of the water purifier provided by the embodiment of the present application.

[0081] Figure 2 The exploded structure schematic diagram of the water purifier provided by the embodiment of the present application.

[0082] Figure 3 The exploded structure schematic diagram of the water purifier provided by the embodiment of the present application.

[0083] Figure 4 The Figure 3 The local enlarged view of A in FIG. 1.

[0084] Figure 5a The schematic diagram of the mutual cooperation of the filter element body and the ejection assembly in the filter element assembly provided by the embodiment of the present application.

[0085] Figure 5bThis is a cross-sectional view of the pull ring in the filter assembly provided in this application embodiment.

[0086] 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.

[0087] Figure 6b This is a cross-sectional view of the accommodating cavity in the filter assembly provided in the embodiments of this application.

[0088] Figure 7 for Figure 6a A magnified view of a portion of point B.

[0089] 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.

[0090] 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.

[0091] Figure 10a This is a schematic diagram of another structure of the latch in the filter assembly provided in the embodiments of this application.

[0092] Figure 10b for Figure 10a A schematic diagram of the locking mechanism and the lever working together in another structure.

[0093] 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.

[0094] 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.

[0095] Figure 13 This is a front view of the water purifier provided in an embodiment of this application.

[0096] Figure 14a This is a cross-sectional view of the main body of the filter assembly provided in the embodiments of this application.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] Figure 15c Another angle layout structure diagram of the components in the shell of the water purifier provided in an embodiment of the present application.

[0101] Figure 16 A diagram of the handle, the decorative cover and the end cover in an embodiment of the present application (the handle is upright).

[0102] Figure 17 A diagram of the handle, the decorative cover and the end cover in an embodiment of the present application (the handle is laid flat).

[0103] Figure 18 A diagram of the handle, the decorative cover and the end cover in an embodiment of the present application (the handle is laid flat). Figure 16 A sectional view of the structure shown.

[0104] Figure 19 A sectional view of the structure shown. Figure 17 A sectional view of the structure shown.

[0105] Figure 20 A diagram of the decorative cover and the handle in an embodiment of the present application (a close-up view from the side of the end cover).

[0106] Figure 21 A diagram of the internal structure of the decorative cover in an embodiment of the present application (the fixing plate is omitted).

[0107] Figure 22 A diagram of the rotating part in an embodiment of the present application.

[0108] Figure 23 A diagram of the fixing plate, the handle and the rotating part in an embodiment of the present application.

[0109] Figure 24 A sectional view of the decorative cover, the rotating part and the end cover in an embodiment of the present application.

[0110] Figure 25 A diagram of the end cover in an embodiment of the present application.

[0111] Figure 26 A partial sectional view of the connection between the decorative cover and the end cover in an embodiment of the present application.

[0112] Figure 27 A diagram of the handle, the rotating part and the stopper in an embodiment of the present application.

[0113] Figure 28 A diagram of the stopper, the stopper elastic member and the rotating part in an embodiment of the present application (the handle is upright).

[0114] Figure 29 A sectional view of the handle, the decorative cover and the stopper in an embodiment of the present application (the handle is laid flat).

[0115] Figure 30 A sectional view of the handle, decorative cover and stopper and other components in an embodiment of the present application (the handle is upright).

[0116] Figure 31 A sectional view of the handle, decorative cover and stopper and other components in an embodiment of the present application (the handle is upright). Figure 30 An enlarged view of the stopper.

[0117] Figure 32 An enlarged view of the handle, decorative cover and stopper and other components in an embodiment of the present application (the handle is upright).

[0118] Figure 33 A sectional view of the handle, decorative cover and stopper and other components in an embodiment of the present application (the handle is upright).

[0119] Reference signs:

[0120] 1000, water purifier;

[0121] 1, filter element assembly;

[0122] 10, filter element; 100, filter element body; 101, necked portion; 1011, shoulder structure; 1012, fool-proof groove; 1001, first limiting groove; 10011, stop groove wall; 1002, second limiting groove; 11, first filter element; 12, second filter element; 103, third filter element;

[0123] 110, filtering part;

[0124] 120, end cover; 121, end cover body; 122, boss; 1221, stop hole; 123, rotating groove; 1231, first protrusion; 12311, first stop surface; 1232, second guide-in slope; 124, accommodating cavity;

[0125] 13, mounting shell; 130, decorative cover; 131, locking body; 1311, top block guide groove; 1312, accommodating groove; 132, fixing plate; 1321, stopper mounting hole; 13211, first stop protrusion; 133, protrusion; 1331, rotating groove; 134, knob; 1341, connecting arm; 1342, screw-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;

[0126] 140, positioning mechanism; 141, top block; 1411, positioning slope; 14111, first slope portion; 14112, second slope portion; 142, positioning elastic member;

[0127] 151, stopper; 1511, stopper body; 1512, second stop protrusion; 152, stop elastic member;

[0128] 2, trigger; 200, handle; 201, grip part; 2011, first limit surface; 2012, second limit surface; 202, rotating part; 203, rotating shaft; 2031, pushing piece; 20311, pushing main body; 20312, pushing part; 204, positioning block; 205, cam; 206, first positioning surface; 207, second positioning surface; 208, transition surface;

[0129] 20, body; 21, accommodating cavity; 2101, first cavity section; 2102, second cavity section; 213, guide groove; 2131, first limit 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, concave 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;

[0130] 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, rotating connection section; 3141, hinged arm; 32, first elastic piece;

[0131] 50, ejection assembly; 51, ejecting piece; 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, limit ring; 53, second elastic piece; 54, elastic piece positioning seat;

[0132] 2', diaphragm pump; 3, pipeline; 4, clean water tank; 5, hot water container; 6, shell; 7, booster pump; 8, heater;

[0133] 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

[0134] In order to make the above object, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners without departing from the spirit of the present application. Those skilled in the art will appreciate the scope of the present application and can make similar modifications without departing from the spirit of the present application. Therefore, the present application is not limited by the embodiments disclosed below.

[0135] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0136] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0137] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0138] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0139] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and are not the only embodiment.

[0140] The filter core assembly and water purifier of the present application will be described below in conjunction with the drawings.

[0141] In combination Figure 1 And Figure 14a , Figure 14b , the present application provides a water purifier 100, comprising a shell 6, and a filter core assembly 1 arranged in the shell 6, the filter core assembly 1 can be located at the bottom of the shell 6, so that the center of gravity of the whole machine is lower, and it is not easy to fall.

[0142] The water purifier 100 further comprises a diaphragm pump 2', a clean water tank 4, a hot water container 5 and other components arranged in the shell 6. Among them, the clean water tank 4 is connected with the filter core assembly 1, and the filtered water of the filter core assembly 1 enters the clean water tank 4. In addition, the clean water tank 4 is also communicated with the inlet of the diaphragm pump 2' through the pipeline 3, and the outlet of the diaphragm pump 2' is also connected to the heater which is communicated with the hot water container 5 through the pipeline 3, so that the water in the clean water tank 4 is extracted by the diaphragm pump 2' and enters the heater for heating, and the hot water after heating enters the hot water container 5.

[0143] The filter core assembly 1 will be described below in conjunction with the drawings.

[0144] Referring to Figure 2 , the filter core assembly 1 of the present application comprises a filter core 10, a machine body 20, a locking assembly 30 and a trigger 2.

[0145] The filter element 10 comprises a filter element body 100. The machine body 20 is configured with a receiving cavity 21 having an opening, the filter element 10, for example the filter element body 100, is plugged into the receiving cavity 21 through the opening, and the end of the filter element body 100 along the insertion direction of the filter element body 100 and the corresponding position of the receiving cavity 21 are respectively provided with a first matching valve 2141 and a second matching valve 2240 capable of being plugged into 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 Figure 2 (the state of the upper side of the drawing) and an unlocking position Figure 2 (the filter element 10 corresponding to the lock catch 31 is in the unlocking position in the water purifier), 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 receiving 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 blocking position. The trigger 2 is configured to drive the lock catch 31 to switch from the blocking position to the unlocking position.

[0146] The stop portion of the lock catch 31 is arranged on the pulling-out path of the filter element body 100 relative to the receiving cavity 21, which means that the stop portion is located in front of the filter element body 100 along the pulling-out direction, when the filter element body 100 has a moving trend along the pulling-out direction relative to the receiving cavity 21, the filter element body 100 abuts against the stop portion and cannot be pulled out. The pulling-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 refers to the tail of the filter element body 100 completely leaving the receiving cavity 21.

[0147] The filter element body 100 is plugged into the receiving cavity 21 through the opening, and the end of the filter element body 100 along the insertion direction of the filter element body 100 and the corresponding position of the receiving cavity 21 are respectively provided with a first matching valve 2141 and a second matching valve 2240 capable of being plugged into each other, so that when the filter element 10 is inserted into the receiving cavity 21 through the opening, the first matching valve 2141 and the second matching valve 2240 can be plugged into each other to realize matching. When the filter element 10 is pulled out from the receiving cavity 21, the plug-in matching of the first matching valve 2141 and the second matching valve 2240 can be released, in other words, the filter element 10 and the receiving cavity 21 in the present application are installed in a straight insertion mode, and the plug-in matching or disengagement of the first matching valve 2141 and the second matching valve 2240 of the filter element 10 and the receiving 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 matching valve 2141 and the second matching valve 2240 can be easily ensured.

[0148] In addition, by arranging the locking assembly 30, and the lock catch 31 in the locking assembly 30 has the blocking position and the unlocking position, the trigger 2 is configured to be able to drive the lock catch 31 to switch from the blocking position to the unlocking position, when it is needed to be pulled out, only need to make the trigger 2 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, no longer blocks the pulling-out path of the filter element, so that the filter element 10 can be pulled out. The operation process is also relatively simple.

[0149] Since 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 when it is in the blocking position, outside the pulling-out path, so that the lock catch 31 does not contact the surface of the filter element 10 during the pulling-out process, and does not scratch the filter element 10.

[0150] 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 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 embodiment of the present application takes the trigger 2 as the handle 200 for example, and the case where the trigger 2 is other structures is similar to this, which will not be described here.

[0151] Further, the locking assembly 30 further comprises a first elastic member 32, 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.

[0152] 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, when the trigger 2 is not in action, the first elastic member 32 ensures that the lock catch 31 is always kept in the blocking position, and ensures 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 need to make the trigger 2 drive the lock catch 31 to overcome the elastic force of the first elastic member 32 to switch from the blocking position to the unlocking position, so that the lock catch 31 is in the unlocking position, 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 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 the unlocking does not occur.

[0153] In combination Figure 2 , Figure 3 and Figure 4The lock catch 31 is rotationally connected to the body 20 about a first axis and is switched between the blocking position and the unlocking position by rotation. The lock catch 31 is provided with a protrusion 310 on a side facing the filter element 10, and the protrusion 310 forms the aforementioned stop portion.

[0154] When the lock catch 31 is rotated to the blocking position, the protrusion 310 is arranged on the pulling-out path; when the lock catch 31 is rotated to the unlocking position, the protrusion 310 is away from the pulling-out path relative to the position of the lock catch 31 in the blocking position.

[0155] The switching of the lock catch 31 between the blocking position and the unlocking position is realized by rotating the lock catch 31. In the blocking position, the protrusion 310 is arranged on the pulling-out path to prevent the filter element 10 from being pulled out of the accommodating cavity 21. In the unlocking position, the protrusion 310 is away from the pulling-out path relative to the position of the lock catch 31 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.

[0156] Continuing to refer to Figure 3 and Figure 4 , in the embodiment of the present application, the body 20 includes a body main body 22 and an end plate 23. The accommodating cavity 21 is formed in the body main 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 lock catch 31 can be provided with a hinge hole 312, and the hinge shaft 311 is fixed to the end plate 23 through the hinge hole 312, so as to hinge the lock catch 31 to the end plate 23.

[0157] The lock catch 31 is hinged to the side of the end plate 23 away from the bottom of the accommodating cavity 21, so that the lock catch 31 is actually located outside the accommodating cavity 21, which is more convenient for installation compared with being arranged inside the accommodating cavity 21.

[0158] Further, the body 20 further includes a pressing plate 24 connected to the end plate 23. The pressing plate 24 is located on the side of the end plate 23 away from the bottom of the accommodating cavity 21, and the lock catch 31 is located between the end plate 23 and the pressing plate 24.

[0159] In this way, the pressing plate 24 can assist in positioning the lock catch 31, that is, the lock catch 31 is installed 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.

[0160] 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 one by one corresponding to each other, and the two ends of the hinge shaft 311 can be respectively clamped on a corresponding set of first mounting holes and second mounting holes, so as to support the hinge shaft 311 between the end plate 23 and the pressing plate 24.

[0161] Of course, the pressing plate 24 is also provided with a relief 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.

[0162] 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.

[0163] 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 member 2 is not operated, the lock catch 31 is always located in the blocking position.

[0164] For specific implementation, for example, refer to Figure 4 The surface of the end plate 23 facing the pressing plate 24 is provided with a clamping wall 230, 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.

[0165] Further, refer to Figure 5a , Figure 6a , Figure 7 , Figure 8 The filter element assembly 1 further comprises an ejection assembly 50, which comprises an ejecting member 51 (for example, a pull ring 510) connected with the accommodating cavity 21. In some embodiments, the ejecting member 51 is arranged in the accommodating cavity 21 and can slide along the inner wall of the accommodating 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 ejecting member 51 is used to move from a first position (refer to Figure 7 ) to a second position (refer to Figure 8 ) in the pulling-out direction of the filter element 10 when the lock catch 31 rotates to the position where the protruding portion 310 just leaves the pulling-out path, so as to eject the filter element 10 in the pulling-out direction.

[0166] 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 accommodating 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 successful.

[0167] Figure 6a and Figure 7The first position of the ejector 51 is shown, Figure 8 The second position of the ejector 51 is shown, which is configured to allow the filter cartridge 10 to be ejected by the ejector assembly 50 a certain distance out of the accommodating cavity 21 when in the unlocked position, facilitating the operator to pull out the filter cartridge body 100.

[0168] In the embodiments of the present application, with reference to Figure 5a 、 Figure 5b , the end portion of the insertion direction of the filter cartridge body 100 is configured as a reduced diameter end portion 101 to form a shoulder structure 1011. The ejector 51 is configured as a ring-shaped pull ring 510, which is sleeved on the reduced diameter end portion 101 and 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 within the accommodating cavity 21 when the pull ring 510 is contacted during the insertion process of the filter cartridge 10.

[0169] Since the ejector 51 abuts against the shoulder structure 1011 when it is moved from the first position to the second position (corresponding to the pulling-out process of the filter cartridge 10), the filter cartridge 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 within the accommodating cavity 21 when the pull ring 510 is contacted during the insertion process of the filter cartridge 10, and the pull ring 510 is configured to be able to slide relative to the accommodating cavity 21, the filter cartridge 10 can be inserted into the accommodating cavity 21 with the pull ring 510 along the inner wall of the accommodating cavity 21.

[0170] In addition, a foolproof groove 1012 is also provided on the necked portion 101, and a foolproof protrusion (not shown) is provided at the corresponding position of the accommodating cavity 21. When the filter cartridge body 100 is inserted into the accommodating cavity 21, the foolproof groove 1012 and the foolproof protrusion cooperate with each other to fix the relative position of the filter cartridge body 100 and the accommodating cavity 21 in the circumferential direction.

[0171] Further, at least part of the inner circumferential surface profile of the ejector 51 matches the outer circumferential profile of the end portion of the insertion direction of the filter cartridge 10, for example, the reduced diameter end portion 101, and one side of the pull ring 510 facing the opening of the accommodating 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 portion 101 refers to the portion of the filter cartridge 10 near the end portion, and the diameter of the filter cartridge segment is slightly smaller than that of the main body portion.

[0172] The inner peripheral side of the ejector 51 is matched with the outer peripheral contour of the reduced diameter end portion 101, so the ejector 51 can apply force to the filter element body 100 in the whole circumferential range, and the force applied to the filter element body 100 is relatively uniform in the whole circumferential range, so that the filter element body 100 is prevented from being skewed during the ejection or insertion process. The guide inclined surface 5101 is also arranged to facilitate the insertion end of the filter element body 100 into the pull ring 510.

[0173] 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 inclined surface 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 end of the filter element 10 into the pull ring 510.

[0174] The filter element 10 is guided by the guide inclined surface 5101 during the middle of the insertion process before being inserted into place, and is gradually inserted into the pull ring 510, so that the filter element 10 is prevented from being too heavy and difficult to align due to the long insertion direction dimension.

[0175] More specifically, the insertion direction end of the filter element 10 can be inserted into the pull ring 510 by connecting the ejector 51, such as the pull ring 510, to the inner wall of the accommodation cavity 21, so that when the filter element 10 enters the accommodation cavity 21, it will be inserted into the inner peripheral side of the pull ring 510 as it is further inserted, and the insertion end of the filter element 10 will be supported by the pull ring 510 without sagging. 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.

[0176] Continuing to refer to Figure 5a and Figure 5b The pull ring 510 further comprises a circumferential mating surface 5100 connected to the guide inclined surface 5101, and the guide inclined surface 5101 and the circumferential mating surface 5100 together define the surface of the inner peripheral side of the pull ring 510.

[0177] The end surface of the shaft shoulder structure 1011 facing the guide inclined surface 5101 is configured as an inclined surface that can be in contact with the guide inclined surface 5101, and the circumferential mating surface 5100 is in contact with the outer peripheral surface of the reduced diameter end portion 101.

[0178] In this way, when the filter element 10 is inserted into the pull ring 510 and the pull ring 510 is moved inward, the shaft shoulder structure 1011 can be matched with the pull ring 510 more stably, so that the insertion process is more stable.

[0179] 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 the radially inner side of the outer wall 514. The radially two side ends of the guide wall 513 are connected to the axially same side ends of the inner wall 512 and the outer wall 514 respectively. The inner circumferential surface of the inner wall 512 forms a circumferential matching 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 in a spaced manner, which can achieve the purpose of weight reduction.

[0180] Further, the surfaces of the inner wall 512 and the outer wall 514 facing each other are further connected with a reinforcing rib 515 to improve the structural strength of the pull ring 510.

[0181] 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.

[0182] 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 are guided and matched in the pulling-out direction (or the insertion direction). The guide groove 213 comprises two first limiting walls 2131 arranged opposite in the pulling-out direction (or the insertion direction).

[0183] 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.

[0184] In the embodiment of the present application, in combination with Figure 7 , the second elastic piece 53 is arranged between the pull ring 510 and the bottom wall of the accommodating cavity 21, and the second elastic piece 53 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 piece 53 pushes the pull ring 510 in the pulling-out direction of the filter element 10 when the lock catch 31 is in the unlocking position.

[0185] In this way, when the filter element 10 needs to be pulled out, the second elastic member 53 can apply a pulling force to the pull ring 510 in the pulling direction, and when no force is applied to the filter element 10 by the user, the filter element 10 can be pushed out by a distance to assist the pulling process of the filter element 10.

[0186] In combination Figure 5a and Figure 7 , further, the bottom wall of the accommodation cavity 21 is further provided with an elastic member positioning seat 54, and the two ends of the second elastic member 53 are connected to the elastic member positioning seat 54 and the guide lug 511 respectively.

[0187] In this way, the installation of the second elastic member 53 is facilitated.

[0188] In the embodiment of the present application, in combination Figure 6a , Figure 6b , Figure 7 , the accommodation cavity 21 comprises a first cavity section 2101 and a second cavity section 2102 connected in the insertion direction. When the accommodation cavity 21 is projected to the bottom wall of the accommodation 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 accommodation 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 accommodation cavity 21.

[0189] 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 accommodation cavity 21 can be reliably inserted and fitted.

[0190] In the embodiment of the present application, the central axis of the pull ring 510 coincides with the central axis of the corresponding accommodation cavity 21.

[0191] In this way, during the insertion of the filter element 10 into the accommodation 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.

[0192] In the embodiment of the present application, in combination Figure 3 , Figure 5a and Figure 9The water purifier 1000 further comprises a scratch-preventing member configured to apply a force to the lock catch 31 to limit 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 as to keep the lock catch 31 in the unlocked position. Thus, the lock catch 31 can be prevented from scratching the filter cartridge 10 during pulling-out or insertion of the filter cartridge 10.

[0193] 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.

[0194] Further, the scratch-preventing member is configured to move along the pulling-out direction of the filter cartridge 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 as to keep the lock catch 31 in the unlocked position.

[0195] In specific implementation, the ejection assembly 50 further comprises a pull rod 52 connected to the guide lug 511 and extending towards the lock catch 31 through the first limiting wall 2131. The pull rod 52 can form the scratch-preventing member.

[0196] In the Figure 9 , the two ejection assemblies 51 corresponding to the uppermost filter cartridge 10 are in the second position, and the two ejection assemblies 51 corresponding to the lower filter cartridges 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 cartridge 10, as shown in the Figure 9 corresponding to the uppermost filter cartridge 10.

[0197] 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 protruding portion 310 is away from the pulling-out path of the filter cartridge 10, the protruding portion 310 will not contact the filter cartridge 10 during pulling-out of the filter cartridge 10, so as to prevent scratching of the filter cartridge 10. Moreover, during insertion of the filter cartridge 10, the protruding portion 310 is still away from the pulling-out path of the filter cartridge 10 under the action of the pull rod 52, so that the protruding portion 310 will not contact the filter cartridge 10 during insertion of the filter cartridge 10, and the filter cartridge 10 can also be prevented from being scratched.

[0198] In specific implementation, the pull rod 52 is connected to the guide lug 511 and extends towards the lock catch 31 through the first limiting wall 2131, 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 extends towards the lock catch 31.

[0199] In specific implementation, the pull rod 52 is connected to the guide lug 511 and extends towards the lock catch 31 through the first limiting wall 2131, 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 extends towards the lock catch 31. Figure 8The guide lug 511 is provided with a through hole 5111, and the pull rod 52 is arranged in the through hole 5111. The pull rod 52 is sleeved with a limiting ring 521, and the outer periphery of the limiting ring 521 is clamped in the through hole 5111.

[0200] In this way, the pull rod 52 can be fixed in the through hole 5111 by the limiting ring 521. The relative movement of the pull rod 52 and the guide lug 511 is avoided. 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.

[0201] Continuing to refer to Figure 6a Further, one side of the pull rod 52 away from the guide lug 511 is arranged in the end plate 23.

[0202] In this way, of two ends of the pull rod 52, one end is connected with the guide lug 511, and the other end is supported on the end plate 23. The end plate 23 can guide the movement of the pull rod 52 along the length direction of the end plate 23. The length direction of the pull rod 52 can be along the pulling-out direction of the filter element 10, for example. The end plate 23 is provided with a guide hole 520. In this way, the movement of the pull rod 52 can be guided through the guide hole 520.

[0203] 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, one filter element 10 can correspond to two lock catches 31, and the two lock catches 31 are arranged oppositely. The number of the guide lug 511 and the pull rod 52 are both set 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.

[0204] 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.

[0205] 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.

[0206] 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.

[0207] 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 rotation of the protruding part 310 towards the direction close to the filter element 10, so as to keep the lock catch 31 in the unlocked position.

[0208] In another embodiment, the number of filter cartridges 10 is multiple, the lock buckles 31 corresponding to two adjacent filter cartridges 10 are located between the two adjacent filter cartridges 10 and are hinged to the body 20 by the same hinge shaft 311; for example Figure 9 the lock buckles 31 located between the two lower filter cartridges 10. Figure 10a 、 Figure 10b The connection diagram of the two lock buckles 31 is shown in FIG. 8. As described above, the lock buckle 31 comprises the abutting section 313 abutting against the pull rod 52 and the rotating connection section 314 rotatingly connected to the body 20. The rotating connection section 314 is located between the protruding portion 310 and the abutting section 313.

[0209] Since the rotating directions of the two lock buckles 31 are opposite, when at least one of the two lock buckles 31 is unlocked, the length between the rotating axis of the lock buckle 31 and the protruding portion 310 is short, the rotating stroke of the two protruding portions 310 is short, and the rotating space reserved for the rotation of the lock buckle 31 between the two filter cartridges 10 can be minimized, and the reduction of the rotating space can also reduce the distance between the two filter cartridges 10, so that the structure is more compact.

[0210] In this case, in combination with Figure 10a and Figure 10b , when the ejector 51 is in the second position, the pull rod 52 is located on the side of the abutting section 313 of the lock 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 lock buckle 31 in the unlocked position.

[0211] 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 lock buckle 31 between the first filter cartridge 11 and the third filter cartridge 103 is provided with the structure that the rotating connection section 314 is located between the protruding portion 310 and the abutting section 313, the remaining lock buckles 31 of the first filter cartridge 11 and the third filter cartridge 103, and the lock buckle 31 corresponding to the second filter cartridge 12 all adopt the structure that the protruding portion 310 of the lock buckle 31 is located between the abutting section 313 and the rotating connection section 314.

[0212] In the embodiment of the present application, when the rotating connection section 314 is located between the protruding portion 310 and the abutting section 313, the rotating connection section 314 of the lock buckle 31 is provided with two hinge arms 3141 spaced apart along the pulling direction of the filter cartridge 10, and the two hinge arms 3141 are penetrated by a corresponding hinge shaft 311.

[0213] Among the two lock buckles 31 hinged to the same hinge shaft 311, the two hinge arms 3141 of one lock buckle 31 are located between the two hinge arms 3141 of the other lock buckle 31.

[0214] Referring to Figure 2The machine body 20 further comprises at least one set of side plate groups arranged outside the machine body 22, and the side plate groups are arranged in one-to-one correspondence with the pull rods 52.

[0215] The side plate group comprises two side plates 25 extending along the extension direction of the pull rod 52, and the extension direction of the two side plates 25 is connected to a first limiting wall 2131 and an end plate 23 respectively. The two side plates 25 in a set of side plate groups 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 in the length direction being in communication with the outside. This facilitates the installation of the pull rod 52.

[0216] 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.

[0217] 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 ejector 51 and the elastic member positioning seat 54 and is used to always apply an elastic force to the ejector 51 away from the elastic member positioning seat 54.

[0218] In this way, as soon as the protruding portion 310 just leaves the pulling-out path, the ejector 51 will move in the pulling-out direction under the elastic force of the second elastic member 53.

[0219] With reference to Figure 2 , Figure 5a , Figure 11 In the embodiment of the present application, the trigger 2 is connected to the filter element body 100. In specific implementation, the trigger 2 is rotationally connected to the filter element body 100 about a second axis. The side wall of the filter element body 100 in the pulling-out direction is provided with a first limiting groove 1001 for the protruding portion 310 to extend into.

[0220] 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, the protruding portion 310 blocks the pulling-out path of the filter element 10, and the filter element 10 can be prevented from continuing to move outward.

[0221] 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.

[0222] The filter element body 100 can include a filter part 110, an end cover 120 and a decorative cover 130 arranged in sequence at the end of the filter part 110, and a first limiting groove 1001 can be provided 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 part 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 needs of use, so as to improve the use experience of the user. For the case where the end cover 120 and the decorative cover 130 are formed separately, the specific connection mode of the handle 20 and the decorative cover 130 will be described in detail later. In the step of integrally forming the end cover 120 and the decorative cover 130, the connection mode of the handle 200 and the decorative cover is similar to the separate one, which will not be described here.

[0223] In combination Figure 11 and Figure 12 As described above, the trigger 2 can be rotationally connected to the filter element body 100 about the second axis, and the trigger 2 is provided with a pushing part capable of pushing the protruding part 310. The pushing part is configured to be capable of contacting the protruding part 310 and pushing the lock catch 31 to rotate in the direction away from the filter element 10 to the unlocking position during the rotation of the trigger 2.

[0224] The protruding part 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. The pushing part 3103 includes a second guide inclined surface 3102 and a second abutting surface 3104 provided on the trigger 2, and the second guide inclined surface 3102 and the second abutting surface 3104 are adjacent to each other and arranged at an angle. The first guide inclined surface 3101 and the second guide inclined surface 3102 form a inclined surface cooperation.

[0225] 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 element 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 part 3103 and the protruding part 310.

[0226] Figure 12 The upper side of the figure is a schematic view of the lock catch 31 in the blocking position. At this time, part of the structure of the protruding part 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 side of the figure is a schematic view of the lock catch 31 in the unlocking position. At this time, the protruding part 310 exits from the first limiting groove 1001 and the second limiting groove 1002.

[0227] in combination with Figure 11 and Figure 12 Further, the trigger 2 is a handle 200, and 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.

[0228] The two ends of the handle 200 are respectively provided with a second limiting groove 1002, one groove wall of the second limiting groove 1002 is provided with a notch, so that the second limiting groove 1002 is communicated with the first limiting groove 1001; the groove wall of the second limiting groove 1002, which is adjacent to the notch, forms a second guide inclined surface 3102, and when the lock catch 31 is in the blocking position, one part of the structure of the protruding part 310 is located in the first limiting groove 1001, and the other part of the structure is located in the second limiting groove 1002.

[0229] In this way, from when the lock catch 31 is in the blocking position, the trigger 2 starts to rotate, and when the second guide inclined surface 3102 is rotated by the trigger 2, the second guide inclined surface 3102 abuts and lifts the first guide inclined surface 3101 on one side, and is in sliding fit with the first guide inclined surface 3101 on the other side, the contact area between the second guide inclined surface 3102 and the first guide inclined surface 3101 becomes smaller and smaller, until the protruding part 310 can gradually escape from the second limiting groove 1002 through the notch, at this time, the surfaces of the two ends of the handle 200, which are away from each other, abut against the first guide inclined surface 3101, and continue to lift the first guide inclined surface 3101, until the protruding part 310 is lifted out of the first limiting groove 1001.

[0230] In specific implementation, the two second limiting grooves 1002 can be oppositely arranged. In this way, the two protruding parts 310 can be clamped at the opposite positions of the filter element 10, so as to facilitate the filter element 10 to be subjected to a relatively uniform clamping force.

[0231] Further, the groove wall of the first limiting groove 1001, which is used for blocking cooperation with the protruding part 310, is defined as a stop groove wall 10011. The width of the second guide inclined surface 3102 is smaller than the width of the first guide inclined surface 3101. When the lock catch 31 is in the blocking position, the second guide inclined surface (3102) has a spacing with the stop groove wall 10011 in the direction of pulling out the filter element 10, as shown in Figure 11 In this way, when the trigger 2 rotates, the protruding part 310 can smoothly escape from the second guide groove 213 and the first limiting groove 1001 through the notch on the limiting groove 1002.

[0232] Further, in the case that one filter element 10 corresponds to two lock catches 31, the protruding parts 310 of the two lock catches 31 are oppositely arranged, and the connecting line of the two protruding parts 310 passes through the center of the filter element body 100.

[0233] In this way, the two protrusions 310 are symmetrically arranged relative to the blocking position of the filter element body 100, and the blocking force of the two protrusions 310 on the filter element body 100 is also relatively uniform. Of course, the number of pull rods 52, guide ears 511, guide grooves 213, etc. used in cooperation with the lock catch 31 is also two respectively.

[0234] In the embodiments of the present application, with reference 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.

[0235] The first filter element 11, the second filter element 12, and the third filter element 103 are sequentially cascaded and are all cylindrical in structure. The diameter of the second filter element 12 is greater than or equal to the diameter of the first filter element 11 and the diameter of the third filter element 103. Among them, the first filter element 11 and the third filter element 103 are arranged in sequence 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.

[0236] In the up-down direction, the lowermost point D1 of the second filter element is arranged on the lower side compared to 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 to the axis O1 of the first filter element and the axis O3 of the third filter element. In Figure 13 , a first straight line L1 passing through the lowermost point D1 of the second filter element and along the left-right direction is drawn. The first straight line L1 is below the uppermost point C1 of the first filter element and the uppermost point E1 of the third filter element. The first straight line L1 is above the axis O1 of the first filter element and the axis O3 of the third filter element.

[0237] In the left-right direction, the leftmost point D2 of the second filter element is on the left side compared to the axis O1 of the first filter element, and the rightmost point D3 of the second filter element is on the right side compared to the axis O3 of the third filter element. In Figure 13 , a second straight line L2 passing through the leftmost point D2 of the second filter element and along the up-down direction, and a third straight line L3 passing through the rightmost point D3 of the second filter element and along the up-down direction are drawn. The second straight line L2 is on the left side of the axis O1 of the first filter element, and the third straight line L3 is on the right side of the axis O2 of the third filter element.

[0238] By arranging the lowermost point D1 of the second filter element 12 lower than the uppermost point C1 of the first filter element 11 and the uppermost point E1 of the third filter element 103 in the up-down direction, and arranging the lowermost point D1 of the second filter element 12 higher than the axis O1 of the first filter element 11 and the axis O3 of the third filter element 103, the second filter element 12 is arranged as close as possible to the first filter element 11 and the third filter element 103 in the up-down direction.

[0239] By arranging the leftmost point D2 of the second filter element 12 leftward relative to the axis O1 of the first filter element 11, and arranging the rightmost point of the second filter element 10 rightward relative to the axis O3 of the third filter element 103 in the left-right direction, the second filter element 12 occupies as little space as possible in the left-right direction relative to the first filter element 11 and the third filter element 103.

[0240] In this way, the second filter element 12, the first filter element 11 and the third filter element 103 are arranged as close as possible to each other, 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.

[0241] 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 particles, and can 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.

[0242] 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 seen by the human eye when the user is facing the front of the water purifier 1000 can be understood as the up-down direction and the left-right direction described above. When the water purifier 1000 is placed on a horizontal plane, the up-down direction is the vertical direction, and the left-right direction is the horizontal direction. The left-right direction and the axis O2 of the second filter element are both in the horizontal plane. Of course, in some other embodiments, when the water purifier 1000 is not absolutely placed on a 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.

[0243] 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 saves space to the greatest extent.

[0244] 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.

[0245] Further, referring to Figure 3 , the 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 respectively accommodated in the three accommodation cavities 21. The sides close to each other of the three accommodation cavities 21 are communicated with each other.

[0246] In this way, compared with setting three independent accommodations, the weight of the body 20 can be reduced, and the processing difficulty can be reduced.

[0247] In combination with Figure 13 , Figure 14a and Figure 15a , further, the body 20 comprises a body main body 22, the body main body 22 comprises 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.

[0248] The first filter element frame 221, the second filter element frame 222 and the third filter element frame 223 are sequentially connected end to end, and the inner contour shapes of the first filter element frame 221, the second filter element frame 222 and the third filter element frame 223 respectively match the part of the circumferential outer contour shapes of the first filter element 11, the second filter element 12 and the third filter element 103, so that the first filter element frame 221, the second filter element frame 222 and the third filter element frame 223 and the bottom plate 224 respectively define three accommodation cavities 21 communicated with each other. The three pull rings 510 can be provided on the inner walls of the first filter element frame 221, the second filter element frame 222 and the third filter element frame 223 one by one.

[0249] The first filter element frame 221, the second filter element frame 222 and the third filter element frame 223 are sequentially connected end to end, which means that the first filter element frame 221, the second filter element frame 222 and the third filter element frame 223 are connected end to end in the circumferential direction, and the three accommodation cavities 21 are communicated, which can save the material of the body main body 22 and reduce the weight.

[0250] Further, the first filter element frame 221 is provided outside the region of more than half of the circumference of the first filter element 11. The second filter element frame 222 is provided outside the region of more than half of the circumference of the second filter element 12. The third filter element frame 223 is provided outside the region of more than half of the circumference of the third filter element 103.

[0251] In this way, the first filter element 11 can be fixed in position by the first filter element frame 221, and will not enter the second filter element frame 222 and the third filter element frame 223. Similarly, the second filter element 12 and the third filter element 103 can also be fixed in position in the second filter element frame 222 and the third filter element frame 223.

[0252] Further, the connecting 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 the inwardly recessed inner recess structure 2200.

[0253] 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 the like, so as to fully utilize the space.

[0254] Further, as mentioned above, the bottom of the first filter core 11, the second filter core 12, and the third filter core 103 facing the accommodating 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 in one-to-one plug-in cooperation with the first matching valves 2141.

[0255] The bottom plate 224 is formed with a waterway pipe (not shown) which is in communication with each second matching valve 2240, and the waterway pipe is used to sequentially cascade the first filter core 11, the second filter core 12, and the third filter core 103. The waterway pipe can be a silica gel pipe or a water flow channel formed by butt joint of two plates.

[0256] Among them, the first filter core 11 and the third filter core 103 are both correspondingly provided with two groups of first matching valves 2141 and second matching valves 2240. For the first filter core 11, one group of first matching valves 2141 and second matching valves 2240 are in plug-in cooperation, which is used to make the waterway pipe in the bottom plate 224 enter water into the first filter core 11, and the other group of first matching valves 2141 and second matching valves 2240 are in plug-in cooperation, which is used to make the filtered water in the first filter core 11 enter the waterway pipe. The two groups of first matching valves 2141 and second matching valves 2240 on the third filter core 103 are similarly arranged, and will not be described here.

[0257] Among them, the second filter core 12 is correspondingly provided with three groups of first matching valves 2141 and second matching valves 2240. One group of first matching valves 2141 and second matching valves 2240 are in plug-in cooperation, which is used to make the waterway pipe in the bottom plate 224 enter water into the second filter core 12, and the other two groups of first matching valves 2141 and second matching valves 2240 are in plug-in cooperation, which is used to make the filtered water in the second filter core 12 enter the waterway pipe.

[0258] In combination Figure 3 As mentioned above, the filter core assembly 1 further includes an end plate 23 which is connected to the side of the first filter core frame 221, the second filter core frame 222, and the third filter core frame 223 away from the bottom plate 224.

[0259] 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 which respectively correspond to the three accommodating cavities 21. 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 respectively correspond to the first filter element 11, the second filter element 12 and the third filter element 103, and thus 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 do not directly communicate, but are provided with connecting structures 234 which correspond to the positions where the three accommodating cavities 21 meet and communicate with each other.

[0260] 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.

[0261] 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 the first filter element 11, the second filter element 12 and the third filter element 103 are each provided with at least one locking assembly 30 and at least one trigger 2.

[0262] In addition, as described above, the body main body 22 is configured with three accommodating cavities 21 having openings, and the first filter element 11, the second filter element 12 and the third filter element 103 are respectively plugged and pulled with the corresponding accommodating cavities 21 through one opening.

[0263] The corresponding locking catches 31 of the first filter element 11, the second filter element 12 and the third filter element 103 are each hinged to the end plate 23 through a hinge shaft 311.

[0264] Further, the corresponding locking catch 31 of the first filter element 11 and the corresponding locking catch 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 locking catch 31 and the third locking catch 31 are hinged to the end plate 23 through different hinge shafts 311, space can be further saved.

[0265] 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 communicates with the hot water container 5, and the booster pump 7 communicates between the first filter element 11 and the second filter element 12.

[0266] 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.

[0267] In this way, the space between the booster pump 7 and the hot water container 5 can be reasonably utilized. Of course, the effect of reasonably utilizing the space between the hot water container 5 and the booster pump 7 is most obvious when both of them are cylindrical.

[0268] 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 facing the user when the purified water machine 1000 is in use.

[0269] In a 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 is substantially equal to the width dimension of the purified water tank 4 along the left-right direction, the effect of utilizing the space between the hot water container 5 and the booster pump 7 is most obvious.

[0270] In the embodiment of the present application, the width dimension of the hot water container 5, the purified water tank 4 and the booster pump 7 along the left-right direction is less than the width dimension of the filter assembly 1 along the left-right direction. The distance between the outermost sides of the hot water container 5 and the booster pump 7 along the front-rear direction is less than the length dimension of the filter assembly 1 along the front-rear direction. In this way, the hot water container 5, the purified water tank 4 and the booster pump 7 are completely arranged above the filter assembly 1.

[0271] In the embodiment of the present application, the side of the hot water container 5 away from the purified water tank 4 is also provided with a heater 8. The heater 8 is located on the upper side of the filter assembly 10, and the heater 8 is in communication with the outlet of the hot water container 5.

[0272] In this way, the heater 8 can also be arranged on the upper side of the filter assembly 10, so that the space on the upper side of the filter assembly 10 can be better utilized.

[0273] Referring to Figure 1 , Figure 5a , Figure 16 and Figure 18 , the filter assembly 10 provided by an embodiment of the present application comprises a filter assembly body 100, a handle 200 and a positioning mechanism 140. The filter assembly body 100 comprises a mounting shell 13. 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 storage state (as shown in 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.

[0274] 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.

[0275] 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.

[0276] Furthermore, in some embodiments, in the gripping state, the handle 200 is perpendicular to the filter element body 100, and the handle 200 is upright relative to the filter element body 100; in the storage state, the handle 200 is parallel to the filter element body 100, and the handle 200 is flat relative to the filter element body 100. In other embodiments, in the gripping state, the handle 200 is nearly perpendicular to the filter element body 100, and in the storage state, the handle 200 is nearly parallel to the filter element body 100.

[0277] See Figure 5a , Figure 16 to 19 In some embodiments, the mounting housing 13 is a decorative cover 130. The filter element body 100 includes a filter component and a decorative cover 130. The filter component includes a filter section 110 for filtration and an end cap 120 fixedly mounted to one end of the filter section 110. The decorative cover 130 is disposed at the end of the end cap 120 opposite to the filter section 110. In other embodiments, the decorative cover 130 may be omitted, or the decorative cover 130 and the end cap 120 may be combined into one component, or the two may be fixedly connected.

[0278] In other embodiments, the mounting housing 13 may also be other components on the filter element 10. In subsequent embodiments, the mounting housing 13 will be described as a decorative cover 130.

[0279] See Figure 16 to 19In 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 apply an elastic force to 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 apply an elastic force to the second positioning surface 207 to make the handle 200 abut against the mounting shell 13 (the decorative cover 130).

[0280] Referring to Figure 16 to 19 In some embodiments, the positioning mechanism 140 includes 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).

[0281] Referring to Figure 16 to 19 , and Figure 21 with Figure 22 In some embodiments, the handle 200 has a connected gripping portion 201 and 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 facing the top block 141, the top block 141 elastically abuts against the first positioning surface 206 to apply an elastic force tending to straighten the gripping portion 201 until the gripping 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 facing the top block 141, the top block 141 elastically abuts against the second positioning surface 207 to apply an elastic force tending to level the gripping portion 201 until the gripping portion 201 abuts against the mounting shell 13 (the decorative cover 130).

[0282] Specifically, the top block 141 is elastically connected to the decorative cover 130, and the handle 200 is rotatably connected to the decorative cover 130 through the rotating part 202 to realize the switching of the handle 200 between the holding state and the storage state. The user can operate the holding part 201 to drive the rotating part 202 to rotate relative to the decorative cover 130. During the rotation, the rotating part 202 always elastically abuts against the top block 141, and the rotating part 202 rotates to different positions, and the degree of extrusion of the rotating part 202 on the top block 141 is different. The top block 141 can reciprocatingly and elastically move due to the different degrees of extrusion of the rotating part 202. When the rotating part 202 rotates to be about to reach the holding state, the first positioning surface 206 of the rotating part 202 faces the top block 141, the top block 141 elastically abuts against the first positioning surface 206, and then the holding part 201 is abutted against the decorative cover 130, and the handle 200 is temporarily limited in the current position, and the holding part 201 can be stably upright and is not easy to shake, so as to be held and pulled. When the rotating part 202 rotates to be about to reach the storage state, the second positioning surface 207 of the rotating part 202 faces the top block 141, the top block 141 elastically abuts against the second positioning surface 207, and then the holding part 201 is abutted against the decorative cover 130, and the handle 200 is temporarily limited in the current position, and the holding part 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.

[0283] Referring to Figure 18 , Figure 19 and Figure 21 , or, in other embodiments, 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 to make the second positioning surface 207 abut against the mounting shell 13 (the decorative cover 130). 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 to make the first positioning surface 206 abut against the mounting shell 13 (the decorative cover 130).

[0284] Specifically, when the handle 200 is about to reach the holding state, the top block 141 elastically abuts against the first positioning surface 206 to make the second positioning surface 207 abut against the inner side wall of the decorative cover 130, so that the rotating part 202 has no rotation allowance and is not easy to shake. When the handle 200 is about to reach the storage state, the top block 141 elastically abuts against the second positioning surface 207 to make the first positioning surface 206 abut against the inner top wall of the decorative cover 130, so that the rotating part 202 has no rotation allowance and is not easy to shake.

[0285] In the above embodiments, 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 shaking.

[0286] 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.

[0287] 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.

[0288] 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.

[0289] In some embodiments, when the holding part 201 rotates to the holding state from the storage state, the second positioning surface 207 can limit the handle 200 by abutting against the inner side wall of the mounting shell 13 (the decorative cover 130); when the holding part 201 rotates to the storage state from the holding state, the first positioning surface 206 can limit the handle 200 by abutting against the inner top wall of the mounting shell 13 (the decorative cover 130).

[0290] In some embodiments, the above two types of embodiments can exist at the same time and limit together.

[0291] 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.

[0292] Referring to Figure 18 , Figure 19 WithFigure 21 In some embodiments, the top block 141 has a positioning inclined surface 1411, and the first positioning surface 206 and the second positioning surface 207 are arranged adjacent to each other and form an acute angle between them; when the rotating part 202 rotates to the position where 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 rotates to the position where 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.

[0293] Specifically, in the embodiment shown in the attached drawings, both the first positioning surface 206 and the second positioning surface 207 are planes. The same tilt direction of the two surfaces means that their tilt directions are approximately the same; their actual tilt angles can be exactly equal or there can be a certain deviation.

[0294] In the above embodiments, the tilt direction of the surface that the positioning inclined surface 1411 abuts is the same in both states, which can increase the fit when abutting, making it easier to keep the handle 200 stably in the current state and reducing the chance of shaking.

[0295] In other embodiments, the first positioning surface 206 and the second positioning surface 207 may also be at right angles or obtuse angles.

[0296] In other embodiments, the first positioning surface 206 and the second positioning surface 207 may not be adjacent to each other.

[0297] In other embodiments, the first positioning surface 206 and the second positioning surface 207 may also be configured as slightly curved surfaces.

[0298] See Figure 18 and Figure 19 In the embodiment shown in the attached figure, the area of ​​the positioning slope 1411 that abuts against the first positioning surface 206 in the gripping state and the area that abuts against the second positioning surface 207 in the storage state are different. The inclination degree of the two areas can be different or the same.

[0299] In some embodiments, the positioning slope 1411 includes a first slope portion 14111 and a second slope portion 14112 with different inclination angles; when the rotating part 202 rotates to the position where the first positioning surface 206 faces the top block 141, the first slope portion 14111 elastically abuts against the first positioning surface 206; when the rotating part 202 rotates to the position where the second positioning surface 207 faces the top block 141, the second slope portion 14112 elastically abuts against the second positioning surface 207.

[0300] 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 receiving 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.

[0301] 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.

[0302] 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.

[0303] 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.

[0304] As described above, during the rotation of the rotating portion 202, the top block 141 and the rotating portion 202 are always in elastic abutment, and the transition of the first positioning surface 206 and the second positioning surface 207 through the transition surface 208 can make the elastic abutment process between the top block 141 and the rotating portion 202 more smooth, and it is not easy to appear jam and hinder the rotation of the rotating portion 202.

[0305] Referring to Figure 18 , Figure 19 and Figure 21 In some embodiments, the positioning mechanism 140 includes a positioning elastic member 142, both 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 portion 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 abutting against the rotating portion 202 to the top block 141.

[0306] In the above embodiment, 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 makes the top block 141 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 keeping the entire handle 200 in the holding state and the storage state, and the shaking is not easy to occur.

[0307] Further, the positioning mechanism 140 is arranged 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 as a spring, which is in a compressed state, and the tensile springback force of the positioning elastic member 142 makes the top block 141 always elastically abut against the rotating part 202.

[0308] In the above embodiment, 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 easy to be damaged.

[0309] In other embodiments, the positioning elastic member 142 can be omitted, and the top block 141 is directly arranged as a component with elasticity, one end of which is connected to the decorative cover 130, and the other end of which elastically abuts against the rotating part 202.

[0310] 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.

[0311] Specifically, the inside of the decorative cover 130 is surrounded 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 the different extrusion degrees of the rotating part 202, the top block guide groove 1311 can guide the stroke of the top block 141, so that the position deviation of the top block 141 is not easy to occur, and the top block 141 is more stably abutted against the rotating part 202. At the same time, 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.

[0312] Referring to Figure 21 to 23In 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.

[0313] 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.

[0314] 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 passes through the decorative cover 130 at both ends to be correspondingly connected with both 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 pass through the decorative cover 130 at both ends to be correspondingly connected with both ends of the holding part 201.

[0315] 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.

[0316] Specifically, the rotating groove 1331 is an elongated slot which extends along the length direction of the rotating shaft 203. By arranging the rotating groove 1331, the rotating shaft 203 can be limited in position, so that it can rotate more stably and is not easy to shake.

[0317] 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 which protrudes 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 inner cavity wall of the locking body 131 respectively.

[0318] Specifically, the rotating groove 1331 is in a U shape and matches the shape of the rotating shaft 203. As shown in Figure 24 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, so as to limit the up-and-down movement of the rotating shaft 203 and make its rotation more stable.

[0319] Referring to Figure 21 to 23 In some embodiments, the plurality of protruding pieces 133 are arranged at intervals along the axial direction of the rotating shaft 203, and the outer circumferential surface of the rotating shaft 203 is provided with positioning blocks 204 located between adjacent protruding pieces 133.

[0320] Specifically, in the embodiment shown in the drawings, two protruding pieces 133 are provided, and different regions of the rotating shaft 203 are clamped into rotating grooves 1331 provided on the two protruding pieces 133, 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 blocks 204, and the cam 205 is arranged on the positioning blocks 204. The positioning blocks 204 are located between adjacent protruding pieces 133, and the two ends of the positioning blocks 204 can be axially limited by the adjacent protruding pieces 133, thereby axially limiting the rotating shaft 203 and making it not easy to have large axial movement.

[0321] 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).

[0322] In the above embodiment, by providing the receiving groove 1312, the flat handle 200 can be received, so that it does not protrude outward, and the overall shape of the filter element is more regular, which is convenient for receiving and installing.

[0323] 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; 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.

[0324] 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.

[0325] 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.

[0326] 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.

[0327] 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.

[0328] 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.

[0329] 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.

[0330] 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.

[0331] 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.

[0332] 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.

[0333] 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.

[0334] 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.

[0335] 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.

[0336] 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.

[0337] 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.

[0338] 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.

[0339] 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.

[0340] Preferably, in the plurality of sets of locking mechanisms, each set of locking mechanisms is arranged at a different position in the radial direction of the filter component. In this way, the foolproofing accuracy can be further enhanced.

[0341] 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.

[0342] In some embodiments, the rotating groove 123 and the rotating buckle 134 are both arc-shaped and extend along the circumference of the filter component. Figure 20 Figure 25 In some embodiments, the inner diameters of the two rotating buckles 134 differ by 1-5 mm in the two sets of locking mechanisms which are arranged at different positions in the radial direction of the filter component.

[0343] In the above embodiments, the rotating groove 123 and the rotating buckle 134 are both arc-shaped, which can match the path shape when the filter component and the decorative cover 130 relatively rotate, so that the unlocking and locking operations are smoother.

[0344] In some embodiments, the inner diameters of the two rotating buckles 134 differ by 1-5 mm in the two sets of locking mechanisms which are arranged at different positions in the radial direction of the filter component. Figure 20 Figure 25 Specifically, as shown in , 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.

[0345] Figure 20 Setting the inner diameter difference of the two rotating buckles 134 to the above range can meet the foolproofing requirement while allowing the two sets of locking mechanisms to be distributed as close and concentrated as possible in the radial direction of the filter component, which is beneficial to the miniaturization design of the filter element 10.

[0346] In some embodiments, in the direction in which the rotating buckle 134 is screwed into the rotating groove 123, the size of the rotating groove 123 in the axial direction of the filter component gradually decreases.

[0347] Specifically, the screwing-in direction refers to the direction in which the rotating buckle 134 is screwed into the rotating groove 123. In Figure 20 the perspective view, the rotating buckle 134 is screwed 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. In this way, on the one hand, it is convenient for the rotating buckle 134 to enter the rotating groove 123 in the initial stage, and on the other hand, it can gradually press 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. Figure 25 Figure 26 In some embodiments, in the direction in which the rotating buckle 134 is screwed into the rotating groove 123, the size of the rotating groove 123 in the axial direction of the filter component gradually decreases.

[0348] Specifically, the screwing-in direction refers to the direction in which the rotating buckle 134 is screwed into the rotating groove 123. In Figure 26 the perspective view, the rotating buckle 134 is screwed 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. In this way, on the one hand, it is convenient for the rotating buckle 134 to enter the rotating groove 123 in the initial stage, and on the other hand, it can gradually press 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.

[0349] In some embodiments, in the direction in which the rotating buckle 134 is screwed into the rotating groove 123, the size of the rotating groove 123 in the axial direction of the filter component gradually decreases. Figure 20 Figure 25 Figure 26 ​​​​​In some embodiments, the front end region of the swivel 134 along its own screw-in direction has a first guide slope 1343 opposite to the groove wall of the rotating groove 123, and the distance between the first guide slope 1343 and the groove wall of the rotating groove 123 gradually increases along the screw-in direction.

[0350] Specifically, the front end region of the clasp 134 along its own screwing direction refers to the region on the clasp 134 that first enters the rotating groove 123 during the screwing process. Figure 26 From this perspective, the left end region of the latch 134 is the front end region in its screwing-in direction. In the direction from right to left, the distance between the first guide slope 1343 and the groove wall of the rotating groove 123 gradually increases. This guides the latch 134 in the initial stage of screwing it in, facilitating its entry into the rotating groove 123 and reducing the difficulty of the locking operation.

[0351] See Figure 20 , Figure 25 and Figure 26 In some embodiments, the buckle 134 has a first guide slope 1343 at both ends along the axial direction of the filter component.

[0352] Specifically, in Figure 26 From a visual perspective, the two ends along the axial direction of the filter component on the knob 134 are the upper and lower ends of the knob 134. In the embodiment shown in the attached figure, the first guide slope 1343 is formed at the upper end of the knob 134. Based on this, the first guide slope 1343 can be provided at both the upper and lower ends of the knob 134 to further enhance the guiding properties, facilitate the entry of the knob 134 into the rotating groove 123, and further reduce the difficulty of the locking operation.

[0353] Preferably, in some embodiments, the end of the wall of the rotating groove 123 near the inlet also has a second guide slope 1232 similar to the first guide slope 1343, to guide the buckle 134 as it is screwed into the rotating groove 123.

[0354] See Figure 20 , Figure 25 and Figure 26 In some embodiments, the end cap 120 includes an end cap body 121 connected to the filter section 110, and a boss 122 protruding from the end cap body 121 and away from one end of the filter section 110. A portion of the boss 122 is recessed toward the end away from the end cap body 121 to form a rotating groove 123. The entrance side of the rotating groove 123 is provided with a receiving cavity 124 communicating with it. The receiving cavity 124 passes through the boss 122 along the axial direction of the filter component. The thimble 134 can be screwed into the rotating groove 123 through the receiving cavity 124.

[0355] 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 the rotating groove 123 is provided with a receiving cavity 124 penetrating through the boss 122 at the entrance side, so that the screw cap 134 can first enter the receiving cavity 124 for positioning, 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.

[0356] 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.

[0357] 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.

[0358] Referring to Figure 20 , Figure 25 and Figure 26 , in some embodiments, the rotating groove 123 and the receiving cavity 124 are both arranged on the outer edge of the boss 122, so that the outer side of the rotating groove 123 and the receiving cavity 124 are both open. In this way, the manufacturing process can be facilitated, and the operation during locking can also be more convenient.

[0359] In other embodiments, the rotating groove 123 and the receiving cavity 124 can also be arranged in other areas of the boss 122.

[0360] 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 contact with the outer side wall of the boss 122.

[0361] ​Specifically, 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 that of the end cover body 121, i.e. the outer sidewall of the boss 122 is located inside the outer sidewall 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 sidewall of the decorative cover side plate 136 is flush with the outer sidewall of the end cover body 121.

[0362] 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.

[0363] In the above embodiment, the inner wall of the decorative cover side plate 136 and the outer sidewall of the boss 122 are in contact, so that the inner wall of the decorative cover side plate 136 and the outer sidewall 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.

[0364] 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.

[0365] Specifically, 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.

[0366] 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.

[0367] 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.

[0368] 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.

[0369] 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.

[0370] 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.

[0371] The structure of the filter part 110 and the end cover 120 in the filter assembly is basically the same as that in the foregoing embodiments, and the specific content 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.

[0372] Specifically, the stop hole 1221 is arranged on the boss 122 of the end cover 120 and is formed by recessing from the end surface of the boss 122 away from the end cover body 121.

[0373] 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.

[0374] 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 insertion and fitting, thereby improving the reliability of the stop.

[0375] 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.

[0376] 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, thereby inhibiting the decorative cover 130 from being loosened from the filter assembly.

[0377] 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.

[0378] 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 inserted 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.

[0379] 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 stopper hole 1221. When the handle 200 is switched from the holding state to the storage state, the stopper 151 exits the stopper 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 stopper 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.

[0380] Referring to Figure 27 to 28 As described 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.

[0381] Specifically, the pushing member 2031 includes a pushing body 20311 sleeved on the outside of the rotating shaft 203, and a 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 stopper 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 stopper hole 1221.

[0382] 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.

[0383] Specifically, when the handle 200 is switched to the holding state, the pushing portion 20312 pushes the stopper 151 to move and insert into the stop hole 1221, and in this process, the elastic force needs to be overcome. When the handle 200 is switched to the storage state, after the pushing portion 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.

[0384] 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.

[0385] Referring to Figure 28 to 31 In some embodiments, the filter element body 100 includes 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.

[0386] Specifically, when the handle 200 is switched to the holding state, the pushing portion 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 to stretch and rebound, and under the action of the rebound force, the stopper 151 will be automatically reset to exit the stop hole 1221.

[0387] 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.

[0388] 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.

[0389] 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.

[0390] 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.

[0391] 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.

[0392] 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.

[0393] 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”.

[0394] 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.

[0395] In Figure 33 viewing angle, the rotating buckle 134 rotates left to rotate into the rotating slot 123, and rotates right to rotate out of the rotating slot 123. When the rotating buckle 134 rotates 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, when the rotating buckle 134 rotates into the rotating slot 123, the first protrusion 1231 can block the second protrusion 1344, so that the rotating buckle 134 cannot easily rotate reversely to rotate out of the rotating slot 123, and 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 large rotation force, and the rotating buckle 134 can still rotate out of the rotating slot 123.

[0396] 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.

[0397] In Figure 33 viewing angle, 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 the two stop surfaces 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 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.

[0398] 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.

[0399] Referring to Figure 20 、 Figure 32 and Figure 33 In some embodiments, the two groups of locking mechanisms are arranged at intervals of 180 degrees along the circumference of the filter component, and among the two groups of locking mechanisms, the second protrusions 1344 and the first protrusions 1231 are respectively arranged on the group of the snap-fitting 134 and the rotating groove 123 with larger radial dimension.

[0400] 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, so that the first protrusion 1231 has a tendency to turn upward, and the second protrusion 1344 has a tendency to turn downward. By arranging 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 pressing of the second protrusion 1344 and the first protrusion 1231 against each other, and the overall strength is higher. Of course, in other embodiments, the second protrusion 1344 and the first protrusion 1231 can be arranged on both groups of the snap-fitting 134 and the rotating groove 123.

[0401] 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.

[0402] 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 scope of the present application. It should be pointed out 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 protection scope of the present application should be subject to the appended claims.

Claims

1. A water purifier characterized by comprising: The filter element (10) is inserted into the accommodating cavity (21) through the opening, and the end portion of the filter element (10) in the insertion direction is inserted into the pull ring (510). The pull ring (510) is arranged to be capable of sliding relative to the inner wall of the accommodating cavity (21) along 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 along the insertion direction. The end portion of the filter element (10) in the insertion direction is configured as a reduced diameter end portion (101) to form a shoulder structure (1011) on the filter element (10); at least part of the surface profile of the inner circumferential side of the pull ring (510) matches the outer circumferential 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 of the filter element (10). The pull ring (510) further comprises a circumferential matching surface (5100) connected to the guide inclined surface (5101), and the guide inclined surface (5101) and the circumferential matching surface (5100) jointly define the surface of the inner circumferential side of the pull ring (510); 2. The water purifier according to claim 1, characterized in that, The end surface of the shoulder structure (1011) towards the guide inclined surface (5101) is configured as an inclined surface capable of being in contact with the guide inclined surface (5101), and the circumferential matching surface (5100) is in contact with the outer circumferential surface of the reduced diameter end portion (101).

3. The water purifier according to claim 2, wherein 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 the radially inner side of the outer wall (514); the radially two side end portions of the guide wall (513) are respectively connected to the axially same side end portions of the inner wall (512) and the outer wall (514); The inner circumferential surface of the inner wall (512) forms the circumferential matching surface (5100), and the inner circumferential surface of the guide wall (513) forms the guide inclined surface (5101).

4. The water purifier according to claim 3, wherein The surfaces of the inner wall (512) and the outer wall (514) facing each other are further connected with a reinforcing rib (515). The circumferential outer side surface of the pull ring (510) is provided with a guide lug (511).

5. The water purifier according to claim 4, wherein ​ ​ 6. The water purifier according to claim 5, wherein ​ 7. The water purifier according to claim 3, wherein ​ A guide groove (213) is arranged on the cavity wall of the accommodating cavity (21) at a position corresponding to the guide lug (511), and the guide lug (511) is guided and matched with the guide groove (213) along the insertion direction; The guide groove (213) comprises two first limiting walls (2131) oppositely arranged along the insertion direction.

8. The water purifier according to claim 7, characterized in that A second elastic member (53) is arranged between the pull ring (510) and the bottom wall of the accommodating cavity (21), and the second elastic member (53) is used for always applying an elastic force to the pull ring (510) away from the bottom wall of the accommodating cavity (21).

9. The water purifier according to claim 8, characterized in that, The bottom wall of the accommodating cavity (21) is further provided with an elastic member positioning seat (54), and the two ends of the second elastic member (53) are connected to the elastic member positioning seat (54) and the guide lug (511) respectively.

10. The water purifier according to claim 7, wherein The filter element (10) comprises a filter element body (100); The water purifier (1000) further comprises: A locking assembly (30) comprising a lock catch (31) connected to the machine body (20); the lock catch (31) has a blocking position and an unlocking position; when the lock catch (31) is located at 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 accommodating cavity (21); when the lock catch (31) is located at the unlocking position, the stop portion of the lock catch (31) is away from the pull-out path relative to the position when it is located at the blocking position; and A trigger member (2) configured to drive the lock catch (31) to switch from the blocking position to the unlocking position; The second elastic member (53) is arranged between the pull ring (510) and the bottom wall of the accommodating cavity (21), and the second elastic member (53) pushes the pull ring (510) in the pull-out direction of the filter element (10) when the lock catch (31) is located at the unlocking position; The lock catch (31) is rotationally connected to the machine body (20) about a first axis and is switched between the blocking position and the unlocking position through rotation; The side of the lock catch (31) facing the filter element (10) is provided with a protruding portion (310); When the lock catch (31) is rotated to the blocking position, the protruding portion (310) is arranged on the pull-out path; when the lock catch (31) is located at the unlocking position, the protruding portion (310) is away from the pull-out path relative to the position when it is located at the blocking position; The pull ring (510) is further provided with a pull rod (52), the pull rod (52) is connected to the guide lug (511) and extends towards the lock catch (31) through the first limiting wall (2131); When the lock catch (31) is located at the unlocking position, the pull rod (52) abuts against the lock catch (31) to keep the lock catch (31) at the unlocking position; The number of the filter element (10) and the pull ring (510) is three, the machine body (20) comprises a machine body (22), the machine body (22) comprises 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); The first filter element frame (221), the second filter element frame (222) and the third filter element frame (223) are sequentially connected end to end, and the inner contour shape of the first filter element frame (221), the second filter element frame (222) and the third filter element frame (223) respectively matches the part of the circumferential outer contour shape of the three filter elements (10), so that the first filter element frame (221), the second filter element frame (222) and the third filter element frame (223) and the bottom plate (224) respectively define three accommodation cavities (21) which communicate with each other; Three pull rings (510) are respectively arranged on the inner walls of the first filter element frame (221), the second filter element frame (222) and the third filter element frame (223); The number of the filter element (10) is three, and the three filter elements (10) are respectively defined as a first filter element (11), a second filter element (12) and a third filter element (103); the first filter element frame (221) is arranged outside the region of more than half of the circumference of the first filter element (11); the second filter element frame (222) is arranged outside the region of more than half of the circumference of the second filter element (12); and the third filter element frame (223) is arranged outside the region of more than half of the circumference of the third filter element (103); The accommodation cavity (21) comprises a first cavity section (2101) and a second cavity section (2102) which are sequentially connected along the insertion direction; When the accommodation cavity (21) is projected to the bottom wall of the accommodation 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); and the second cavity section (2102) is used for supporting the reduced diameter end portion (101); The length of the reduced diameter end portion (101) along the insertion direction is less than the length of the second cavity section (2102); The central axis of the pull ring (510) coincides with the central axis of the corresponding accommodation cavity (21); 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 diameter of the first filter element (11) and the diameter of the third filter element (103); The first filter element (11) and the third filter element (103) are arranged in the left-right direction in sequence and are spaced apart; and the second filter element (12) is located above the first filter element (11) and the third filter element (103). In the up-down direction, the lowermost point (D1) of the second filter element is arranged lower than the uppermost point (C1) of the first filter element and the uppermost point (E1) of the third filter element, and is arranged higher than the axis (O1) of the first filter element and the axis (O3) of the third filter element; In the left-right direction, the leftmost point (D2) of the second filter element is arranged leftward than the axis (O1) of the first filter element, and the rightmost point of the first filter element (11) is arranged rightward than the axis (O3) of the third filter element; the up-down 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 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); 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 respectively accommodated in the three accommodation cavities (21); The sides close to each other of the three accommodation cavities (21) are communicated with each other; 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) being communicated with the hot water container (5), and the booster pump (7) being communicated between the first filter element (11) and the second filter element (12); The hot water container (5), the purified water tank (4) and the booster pump (7) are arranged on the upper side of the filter element assembly (1), and the purified water tank (4) at least partially surrounds the booster pump (7); The filter element (10) comprises a filter element body (100), and the filter element body (100) comprises: a filter part having a filter portion (110) for filtering; and a decorative cover (130) arranged at an axial end of the filter part, the decorative cover (130) being connected and locked or unlocked and separated from the filter part through 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 part, and the other is arranged on the decorative cover (130), and the filter part 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 part; A plurality of sets of the locking mechanism are arranged in an array along the circumferential direction of the filter part, and at least two sets of the locking mechanism are arranged at different positions in the radial direction of the filter part; The rotating buckles (134) in the at least two sets of the locking mechanism are different in distance from the central axis of the filter element; The at least two sets of the locking mechanism are spaced apart by 180 degrees in the circumferential direction of the filter part; The filter element (10) comprises a filter element body (100), the filter element body (100) comprises a mounting shell (13); The filter element (10) further comprises a positioning mechanism (140), the positioning mechanism (140) is connected to the mounting shell (13); The water purifier (1000) further comprises a handle (200), the handle (200) is rotationally connected to the mounting shell (13), 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), so that the handle (200) is kept in the holding state by abutting against the mounting shell (13); the positioning mechanism (140) can exert an elastic force on the handle (200), so that the handle (200) is kept in the storage state by abutting against the mounting shell (13); 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) towards the positioning mechanism (140), the positioning mechanism (140) can exert an elastic force on the first positioning surface (206), so that the handle (200) abuts against the mounting shell (13); when the handle (200) is rotated to the second positioning surface (207) towards the positioning mechanism (140), the positioning mechanism (140) can exert an elastic force on the second positioning surface (207), so that the handle (200) abuts against the mounting shell (13); The positioning mechanism (140) comprises a top block (141) elastically connected to the mounting shell (13); when the handle (200) is rotated to the first positioning surface (206) towards the top block (141), the top block (141) elastically abuts against the first positioning surface (206), so that the handle (200) abuts against the mounting shell (13); when the handle (200) is rotated to the second positioning surface (207) towards the top block (141), the top block (141) elastically abuts against the second positioning surface (207), so that the handle (200) abuts against the mounting shell (13); The filter element (10) comprises a filter element body (100), the filter element body (100) comprises a filter component, a decorative cover (130), and a stop piece (151) connected to the decorative cover (130), the decorative cover (130) is arranged at one end of the filter component in the axial direction, and the decorative cover (130) is configured to rotate relative to the filter component around the axial direction of the filter element to be connected, locked, and separated from the filter component; The handle (200) is rotationally connected to the decorative cover (130), so that the handle (200) has a holding state and a storage state; In the holding state, the stop piece (151) is inserted into the filter component in the axial direction of the filter element, so as to inhibit relative rotation of the filter component and the decorative cover (130); The filter component has a stop hole (1221), in the holding state, the stop piece (151) is inserted into the stop hole (1221); in the storage state, the stop piece (151) is withdrawn from the stop hole (1221); A plurality of sets of the stop piece (151) and a plurality of sets of the stop hole (1221) are arranged in pairs; The filter component comprises a filter part (110) for filtering, and an end cover (120) fixedly installed at one end of the filter part (110), the decorative cover (130) is arranged at one end of the end cover (120) away from the filter part (110), and the stop hole (1221) is arranged on the end cover (120); 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 component deviates from the rotation center of relative rotation between the filter component and the decorative cover (130); Alternatively, the cross-sectional shape of the stop piece (151) and the stop hole (1221) is polygonal, oval, semicircular or multi-semicircular; 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 core towards the filter component by abutting against the handle (200) and is inserted into the filter component; when the handle (200) is switched from the holding state to the storage state, the stop piece (151) is separated from the filter component; The stop piece (151) is elastically connected to the decorative cover (130), when the handle (200) is switched to the holding state, the stop piece (151) extends towards the filter component against the elastic force; when the handle (200) is switched to the storage state, the stop piece (151) is driven to retract by the elastic force; The filter core body (100) comprises a stop elastic piece (152) sleeved outside the stop piece (151), and two ends of the stop elastic piece (152) abut against the stop piece (151) and the decorative cover (130) respectively; The decorative cover (130) has a stop piece mounting hole (1321); in the holding state, the stop piece (151) partially extends out of the stop piece mounting hole (1321); in the storage state, the stop piece (151) is retracted into the stop piece mounting hole (1321); The hole wall of the stop piece mounting hole (1321) is provided with two first stop bosses (13211) arranged at intervals along the axial direction of the filter core, the stop piece (151) comprises a stop piece main body (1511) and a second stop boss (1512) protruding from the outer wall of the stop piece main body (1511), and the two first stop bosses (13211) are used for blocking the second stop boss (1512) to limit the movement stroke of the stop piece (151).

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