Water purifier

Abstract

The invention relates to a water purifier. The water purifier comprises a filter element; the machine body is provided with a containing cavity with an opening, and the filter element is matched with the containing cavity through the opening in an inserting and pulling mode; 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 in 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 in the insertion direction of the filter element; the pull ring is configured to be capable of moving in the insertion direction of the filter element so as to be driven by the insertion operation of the filter element and move by a certain distance in the insertion direction. 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] This invention relates to the field of water purification equipment technology, and in particular to a water purifier. Background Technology

[0002] As living standards improve, people's requirements for water quality are also gradually increasing, leading to the growing development of water purifiers. Water purifiers primarily achieve their purification function through filter cartridges. In water purifiers with relevant technologies, the main body is typically housed within an outer casing, with a horizontally arranged receiving cavity inside. The filter cartridge is inserted into the receiving cavity from the outside through an opening in the cavity. However, during insertion, the insertion end of the filter cartridge often slightly shifts downwards due to gravity, making installation somewhat inconvenient and sometimes even preventing the cartridge from being installed correctly. Summary of the Invention

[0003] Therefore, it is necessary to provide a water purifier that can improve the installation reliability of the filter element and has a simpler installation process.

[0004] This application provides a water purifier, including:

[0005] Filter element;

[0006] The body has an open receiving cavity, through which the filter element is inserted and removed; and

[0007] A pull ring is attached to the inner wall of the receiving cavity, and the end of the filter element in the insertion direction can be inserted into the pull ring;

[0008] The pull ring has a guide slope that is radially outward on the side facing the insertion end of the filter element to guide the insertion of the filter element.

[0009] The pull ring is configured to move along the insertion direction of the filter element, so that it can be driven by the insertion operation of the filter element and move a certain distance along the insertion direction.

[0010] In one embodiment, the end of the filter element in the insertion direction is configured as a reduced-diameter end to form a shoulder structure on the filter element; at least a portion of the surface profile of the inner circumferential side of the pull ring matches the outer circumferential profile of the reduced-diameter end;

[0011] The shoulder structure is used to move the pull ring along the insertion direction within the receiving cavity when it comes into contact with the pull ring during the insertion of the filter element.

[0012] In one embodiment, the pull ring further includes a circumferential mating surface that is connected to the guide ramp, the guide ramp and the circumferential mating surface together defining the surface of the inner circumferential side of the pull ring;

[0013] The end face of the shoulder structure facing the guide slope is constructed to be a slope that can contact and fit with the guide slope, and the circumferential mating surface contacts and fits with the outer circumferential surface of the reduced diameter end.

[0014] In one embodiment, the pull ring includes an annular inner wall, a guide wall, and an outer wall, with the inner wall spaced apart radially inside the outer wall; the radial ends of the guide wall are respectively connected to the axial ends of the inner wall and the outer wall on the same side.

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

[0016] In one embodiment, reinforcing ribs are also connected between the facing surfaces of the inner and outer walls.

[0017] In one embodiment, the outer circumferential side of the pull ring is provided with a guide lug;

[0018] The cavity wall of the receiving cavity is provided with a guide groove corresponding to the position of the guide ear, and the guide ear and the corresponding guide groove are guided and matched along the insertion direction;

[0019] The guide groove includes two first limiting walls that are arranged opposite each other along the insertion direction.

[0020] In one embodiment, a second elastic element is provided between the pull ring and the bottom wall of the receiving cavity, the second elastic element being used to always apply an elastic force away from the bottom wall of the receiving cavity to the pull ring.

[0021] In one embodiment, an elastic element positioning seat is also provided on the bottom wall of the accommodating cavity, and the two ends of the second elastic element are respectively connected to the elastic element positioning seat and the guide ear.

[0022] In one embodiment, the filter element includes a filter element body;

[0023] Water purifiers also include:

[0024] A locking assembly includes a latch connected to the housing; the latch has a blocking position and an unlocking position; when the latch is in the blocking position, the stop portion of the latch blocks the pull-out path of the filter element body relative to the receiving cavity; when the latch is in the unlocking position, the stop portion of the latch is moved away from the pull-out path relative to when it is in the blocking position; and

[0025] The trigger is configured to drive the latch to switch from the blocked position to the unlocked position.

[0026] In one embodiment, a second elastic element is provided between the pull ring and the bottom wall of the receiving cavity. When the latch is in the unlocked position, the second elastic element pushes the pull ring in the direction of the filter element being pulled out.

[0027] In one embodiment, the latch is rotatably connected to the body about a first axis and switches between a blocking position and an unlocked position by rotation.

[0028] The latch has a protrusion on the side facing the filter element;

[0029] When the latch is in the blocking position, the protrusion blocks the pull-out path; when the latch is in the unlocked position, the protrusion is away from the pull-out path relative to when it was in the blocking position.

[0030] In one embodiment, the pull ring is further provided with a pull rod, which is connected to the guide ear and extends through the first limiting wall toward the latch;

[0031] When the latch is in the unlocked position, the lever rests against the latch to keep it in the unlocked position.

[0032] In one embodiment, the number of filter elements and pull rings is three, and the body includes a main body, which includes a first filter element frame, a second filter element frame and a third filter element frame, and a base plate connected to one side end of the first filter element frame, the second filter element frame and the third filter element frame;

[0033] The first filter frame, the second filter frame, and the third filter frame are connected end to end in sequence, and the inner contour shape of the first filter frame, the second filter frame, and the third filter frame are respectively matched with the partial circumferential outer contour shape of the three filter elements, so that the first filter frame, the second filter frame, and the third filter frame and the base plate respectively define three mutually communicating cavities.

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

[0035] In one embodiment, a first filter element frame surrounds more than half of the circumferential area of ​​the first filter element; a second filter element frame surrounds more than half of the circumferential area of ​​the second filter element; and a third filter element frame surrounds more than half of the circumferential area of ​​the third filter element.

[0036] In one embodiment, the accommodating cavity includes a first cavity segment and a second cavity segment that are connected along the insertion direction;

[0037] When the receiving cavity is projected onto the bottom wall of the receiving cavity, the outer contour of the projection of the first cavity segment is located outside the outer contour of the projection of the second cavity segment; the second cavity segment is used to support the reduced diameter end.

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

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

[0040] In one embodiment, there are three filter elements, which are defined as a first filter element, a second filter element, and a third filter element, respectively; the first filter element, the second filter element, and the third filter element are cascaded in sequence and are all constructed in a cylindrical shape; the diameter of the second filter element is greater than or equal to the diameter of the first filter element and the diameter of the third filter element;

[0041] The first and third filter elements are arranged alternately in the left-right direction; the second filter element is located above the first and third filter elements.

[0042] Along the vertical direction, the lowest point of the second filter element is arranged slightly lower than the highest point of the first filter element and the highest point of the third filter element, and slightly higher than the axis of the first filter element and the axis of the third filter element.

[0043] Along the left-right direction, the leftmost point of the second filter element is to the left of the axis of the first filter element, and the rightmost point of the first filter element is to the right of the axis of the third filter element; the up-down direction and the left-right direction are perpendicular to the axis of the first filter element.

[0044] In one embodiment, the distance between the axis of the first filter element and the axis of the second filter element, and the distance between the axis of the third filter element and the axis of the second filter element are equal.

[0045] In one embodiment, the diameter of the first filter element and the diameter of the third filter element are the same, and the diameter of the second filter element is larger than the diameter of the first filter element.

[0046] In one embodiment, the body structure has three accommodating cavities, in which the first filter element, the second filter element, and the third filter element are respectively accommodated;

[0047] The three cavities are connected to each other on their closest sides.

[0048] In one embodiment, the water purifier further includes a hot water container, a booster pump, and a purified water tank disposed between the hot water container and the booster pump, the purified water tank being connected to the hot water container, and the booster pump being connected between the first filter element and the second filter element.

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

[0050] In one embodiment, the filter element is provided with a first fitting valve and a second fitting valve at the end along its insertion direction and at the corresponding position of the receiving cavity, respectively, so that they can be inserted and fitted together.

[0051] In one embodiment, the filter element includes a filter element body, the filter element body comprising:

[0052] A filter element having a filter section for filtration; and

[0053] A decorative cover is located at one axial end of the filter component. The decorative cover and the filter component are connected, locked, and unlocked by a locking mechanism.

[0054] The locking mechanism includes a rotating groove and a latch, one of which is disposed on the filter element and the other on the decorative cover. The filter element and the decorative cover are configured to rotate relative to each other so that the latch is screwed into or out of the rotating groove along the circumference of the filter element.

[0055] Multiple locking mechanisms are arranged in a circumferential array along the filter element, and at least two sets of locking mechanisms are arranged in different radial positions along the filter element.

[0056] In one embodiment, the distance between the thimble in at least two sets of locking mechanisms and the central axis of the filter element is different.

[0057] In one embodiment, at least two sets of locking mechanisms are spaced 180 degrees apart circumferentially along the filter element.

[0058] In one embodiment, the filter element includes a filter element body, and the filter element body includes a mounting housing;

[0059] The filter element also includes a positioning mechanism, which is connected to the mounting housing;

[0060] The water purifier also includes a handle, which is rotatably connected to the mounting housing so that the handle can be in a gripping state and a stored state;

[0061] The positioning mechanism can apply a spring force to the handle so that the handle is held in a gripped state by abutting against the mounting housing; the positioning mechanism can also apply a spring force to the handle so that the handle is held in a retracted state by abutting against the mounting housing.

[0062] In one embodiment, the handle has a first positioning surface and a second positioning surface; when the handle is rotated to face the first positioning surface toward the positioning mechanism, the positioning mechanism can apply an elastic force to the first positioning surface so that the handle abuts against the mounting housing; when the handle is rotated to face the second positioning surface toward the positioning mechanism, the positioning mechanism can apply an elastic force to the second positioning surface so that the handle abuts against the mounting housing.

[0063] In one embodiment, the positioning mechanism includes a top block resiliently connected to the mounting housing; when the handle is rotated to a position where the first positioning surface faces the top block, the top block resiliently abuts against the first positioning surface so that the handle abuts against the mounting housing; when the handle is rotated to a position where the second positioning surface faces the top block, the top block resiliently abuts against the second positioning surface so that the handle abuts against the mounting housing.

[0064] In one embodiment, the filter element includes a filter element body, the filter element body includes a filter component, a decorative cover, and a stop member connected to the decorative cover. The decorative cover is disposed at one axial end of the filter component and is configured to rotate relative to the filter component about the axial direction of the filter element to lock and unlock with the filter component.

[0065] The water purifier also includes a handle, which is rotatably connected to the decorative cover so that the handle can be in a gripping state and a stored state;

[0066] When held, the stop piece is inserted into the filter element along the axial direction of the filter element to inhibit relative rotation between the filter element and the decorative cover.

[0067] In one embodiment, the filter component has a stop hole, in which the stop member is inserted into the stop hole when held and in the retracted state.

[0068] In one embodiment, multiple sets of stop members and multiple sets of stop holes are arranged in pairs.

[0069] In one embodiment, the filter component includes a filter section for filtering and an end cap fixedly installed at one end of the filter section, a decorative cover being disposed at the end of the end cap opposite to the filter section, and a stop hole being disposed on the end cap.

[0070] In one embodiment, the stop member and the stop hole have a circular cross-sectional shape, and the position of the stop hole on the filter member is offset from the rotation center of the filter member and the decorative cover relative to each other.

[0071] Alternatively, the cross-sectional shape of the stop element and the stop hole can be polygonal, elliptical, semi-circular, or mostly semi-circular.

[0072] In one embodiment, when the handle switches from the retracted state to the gripping state, the stop member moves along the axial direction of the filter element towards the filter component via the handle and is inserted into the filter component; when the handle switches from the gripping state to the retracted state, the stop member and the filter component separate.

[0073] In one embodiment, the stop member is elastically connected to the decorative cover. When the handle is switched to the gripping state, the stop member extends toward the filter component against the elastic force; when the handle is switched to the storage state, the stop member is driven to retract by the elastic force.

[0074] In one embodiment, the filter element body includes a stop elastic member sleeved outside the stop member, with its two ends abutting against the stop member and the decorative cover, respectively.

[0075] In one embodiment, the decorative cover has a stop mounting hole; in the gripped state, the stop part extends out of the stop mounting hole; in the stored state, the stop retracts into the stop mounting hole.

[0076] In one embodiment, the wall of the mounting hole of the stop member is provided with two first stop protrusions arranged at intervals along the axial direction of the filter element. The stop member includes a stop member body and a second stop protrusion protruding from the outer wall of the stop member body. The two first stop protrusions are used to block the second stop protrusion to limit the movement stroke of the stop member.

[0077] The beneficial effects of the water purifier mentioned above:

[0078] The filter element is inserted into the receiving cavity through an opening, thus allowing for a direct connection or disconnection. In other words, the filter element and receiving cavity are installed in a straight-in-line manner; simply inserting or removing the filter element in one direction completes the connection or disconnection, making installation relatively simple.

[0079] Furthermore, by connecting the filter element to the inner wall of the receiving cavity via a pull ring, the insertion end of the filter element can be inserted into the pull ring. Therefore, as the filter element enters the receiving cavity and is further inserted, it will be inserted into the inner circumference of the pull ring, where the inserted end will be supported and prevent sagging. Compared with existing technologies, this significantly reduces installation difficulty and simplifies operation. Moreover, the pull ring enables relatively accurate positioning of the filter element within the receiving cavity, making it easy to install and thus improving installation reliability.

[0080] Furthermore, the pull ring has a guide slope that slopes radially outward on the side facing the insertion end of the filter element, guiding the insertion of the filter element and facilitating its entry into the pull ring. The pull ring is configured to move along the insertion direction of the filter element, allowing it to be moved a certain distance by the insertion operation. Therefore, after the pull ring is inserted into the end of the filter element, the pull ring and the end of the filter element work together to provide better support for the filter element. Attached Figure Description

[0081] Figure 1 This is a schematic diagram of the structure of a water purifier provided in an embodiment of this application.

[0082] Figure 2 This is an exploded view of the water purifier provided in an embodiment of this application.

[0083] Figure 3 This is an exploded structural diagram of the water purifier body provided in the embodiments of this application.

[0084] Figure 4 for Figure 3 A magnified view of a portion at point A.

[0085] Figure 5a This is a schematic diagram showing the interaction between the filter body and the ejector assembly in the filter assembly provided in the embodiments of this application.

[0086] Figure 5b This is a cross-sectional view of the pull ring in the filter assembly provided in this application embodiment.

[0087] 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.

[0088] Figure 6b This is a cross-sectional view of the accommodating cavity in the filter assembly provided in the embodiments of this application.

[0089] Figure 7 for Figure 6a A magnified view of a portion of point B.

[0090] 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.

[0091] 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.

[0092] Figure 10a This is a schematic diagram of another structure of the latch in the filter assembly provided in the embodiments of this application.

[0093] Figure 10b for Figure 10a A schematic diagram of the locking mechanism and the lever working together in another structure.

[0094] 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.

[0095] 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.

[0096] Figure 13 This is a front view of the water purifier provided in an embodiment of this application.

[0097] Figure 14a This is a cross-sectional view of the main body of the filter assembly provided in the embodiments of this application.

[0098] 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.

[0099] 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.

[0100] Figure 15bThis is a schematic diagram showing the layout of the components inside the casing of the water purifier provided in the embodiments of this application.

[0101] Figure 15c This is a schematic diagram showing the layout of the components inside the casing of the water purifier provided in this embodiment of the application from another angle.

[0102] Figure 16 This is a schematic diagram of a handle, decorative cover, and end cap in one embodiment of this application (handle upright).

[0103] Figure 17 This is a schematic diagram of the handle, decorative cover, and end cap in one embodiment of this application (handle laid flat).

[0104] Figure 18 for Figure 16 A cross-sectional view of the structure shown.

[0105] Figure 19 for Figure 17 A cross-sectional view of the structure shown.

[0106] Figure 20 This is a schematic diagram of the decorative cover and handle in one embodiment of this application (view from the side near the end cover).

[0107] Figure 21 This is a schematic diagram of the internal structure of the decorative cover in one embodiment of this application (fixing plate omitted).

[0108] Figure 22 This is a schematic diagram of the rotating part in one embodiment of this application.

[0109] Figure 23 A schematic diagram of components such as a fixing plate, handle, and rotating part in one embodiment of this application.

[0110] Figure 24 This is a cross-sectional view of the decorative cover, rotating part, and end cover in one embodiment of this application.

[0111] Figure 25 This is a schematic diagram of the end cap in one embodiment of this application.

[0112] Figure 26 This is a partial cross-sectional view of the connection between the decorative cover and the end cap in one embodiment of this application.

[0113] Figure 27 This is a schematic diagram of components such as a handle, a rotating part, and a stop member in one embodiment of this application.

[0114] Figure 28 This is a schematic diagram of a stop member, a stop elastic member, and a rotating part in one embodiment of this application (handle upright).

[0115] Figure 29This is a cross-sectional view of components such as the handle, decorative cover, and stop member in one embodiment of this application (handle laid flat).

[0116] Figure 30 This is a cross-sectional view of components such as the handle, decorative cover, and stop member in one embodiment of this application (handle upright).

[0117] Figure 31 for Figure 30 A magnified view of the stop position.

[0118] Figure 32 This is a partial enlarged view of the buckle in one embodiment of this application.

[0119] Figure 33 This is a cross-sectional view of a swivel screwed into the rotating groove in one embodiment of this application.

[0120] Figure label:

[0121] 1000, Water purifier;

[0122] 1. Filter element assembly;

[0123] 10. Filter element; 100. Filter element body; 101. Neck; 1011. Shoulder structure; 1012. Anti-misalignment 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;

[0124] 110. Filter section;

[0125] 120. End cap; 121. End cap body; 122. Boss; 1221. Stop hole; 123. Rotating groove; 1231. First protrusion; 12311. First stop surface; 1232. Second guide slope; 124. Receiving cavity;

[0126] 13. Mounting shell; 130. Decorative cover; 131. Locking body; 1311. Top block guide groove; 1312. Storage groove; 132. Fixing plate; 1321. Stop component mounting hole; 13211. First stop boss; 133. Protrusion; 1331. Rotating groove; 134. Hook; 1341. Connecting arm; 1342. Screw-in arm; 1343. First guide 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;

[0127] 140. Positioning mechanism; 141. Top block; 1411. Positioning inclined surface; 14111. First inclined surface; 14112. Second inclined surface; 142. Positioning elastic element;

[0128] 151. Stop component; 1511. Stop component body; 1512. Second stop boss; 152. Stop elastic component;

[0129] 2. Trigger; 200. Handle; 201. Grip; 2011. First limiting surface; 2012. Second limiting surface; 202. Rotating part; 203. Rotating shaft; 2031. Pushing part; 20311. Pushing body; 20312. Pushing part; 204. Positioning block; 205. Cam; 206. First positioning surface; 207. Second positioning surface; 208. Transition surface;

[0130] 20. Body; 21. Receiving cavity; 2101. First cavity section; 2102. Second cavity section; 213. Guide groove; 2131. First limiting wall; 22. Main body; 221. First filter element frame; 222. Second filter element frame; 223. Third filter element frame; 224. Base plate; 2240. Second matching valve; 2241. First matching valve; 2200. Recessed structure; 23. End plate; 230. Snap-fit ​​wall; 231. First filter element inlet / outlet; 232. Second filter element inlet / outlet; 233. Third filter element inlet / outlet; 234. Connecting structure; 24. Pressure plate; 241. Clearance opening; 25. Side plate;

[0131] 30. Locking assembly; 31. Lock; 310. Protrusion; 3101. First guide slope; 3102. Second guide slope; 3103. Pushing part; 3104. Second abutting surface; 3105. First abutting surface; 311. Hinge shaft; 312. Hinge hole; 313. Abutting section; 314. Rotating connecting section; 3141. Hinge arm; 32. First elastic element;

[0132] 50. Ejector assembly; 51. Ejector piece; 510. Pull ring; 5100. Circumferential mating surface; 5101. Guide slope; 511. Guide ear; 5111. Through hole; 512. Inner wall; 513. Guide wall; 514. Outer wall; 515. Reinforcing rib; 52. Pull rod; 520. Guide hole; 521. Limiting ring; 53. Second elastic element; 54. Elastic element positioning seat;

[0133] 2' Diaphragm pump; 3. Piping; 4. Clean water tank; 5. Hot water container; 6. Outer casing; 7. Booster pump; 8. Heater;

[0134] C1, the uppermost point of the first filter element; O1, the axis of the first filter element; D1, the lowermost point of the second filter element; D2, the leftmost point of the second filter element; D3, the rightmost point of the second filter element; O2, the axis of the second filter element; E1, the uppermost point of the third filter element; O3, the axis of the third filter element. Detailed Implementation

[0135] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0136] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0137] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0138] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0139] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0140] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0141] The filter assembly and water purifier of this application are described below with reference to the accompanying drawings.

[0142] Combination Figure 1 and Figure 14a , Figure 14b This application provides a water purifier 100, including a housing 6 and a filter element assembly 1 disposed within the housing 6. The filter element assembly 1 can be located at the bottom of the housing 6 so that the center of gravity of the whole machine is low and it is not easy to tip over.

[0143] The water purifier 100 also includes a diaphragm pump 2', a purified water tank 4, a hot water container 5, and other components housed within the outer casing 6. The purified water tank 4 is connected to the filter assembly 1, and the water filtered by the filter assembly 1 enters the purified water tank 4. Furthermore, the purified water tank 4 is connected to the inlet of the diaphragm pump 2' via a pipe 3, and the outlet of the diaphragm pump 2' is also connected via a pipe 3 to a heater connected to the hot water container 5. Thus, water in the purified water tank 4 is drawn by the diaphragm pump 2' into the heater for heating, and the heated water then enters the hot water container 5.

[0144] The following section, with reference to the accompanying drawings, will focus on the filter element assembly 1.

[0145] Reference Figure 2 The filter element assembly 1 in this application embodiment includes a filter element 10, a body 20, a locking component 30, and a trigger 2.

[0146] The filter element 10 includes a filter element body 100. The housing 20 has an open receiving cavity 21. The filter element 10, for example, the filter element body 100, is inserted into and removed from the receiving cavity 21 through the open opening. A first mating valve 2141 and a second mating valve 2240, capable of interlocking, are respectively provided at the end of the filter element body 100 along its insertion direction and at corresponding positions in the receiving cavity 21. The locking assembly 30 includes a latch 31 connected to the housing 20. The latch 31 has a blocking position (…). Figure 2 The state of the upper part of the middle image) and the unlock position ( Figure 2In the water purifier shown in the lower part of the middle image, the latch 31 corresponding to the uppermost filter element 10 is in the unlocked position. When the latch 31 is in the blocking position, the stop portion of the latch 31 blocks the pull-out path of the filter element body 100 relative to the receiving cavity 21. When the latch 31 is in the unlocked position, the stop portion of the latch 31 is away from the pull-out path compared to when it is in the blocking position. The trigger 2 is configured to drive the latch 31 to switch from the blocking position to the unlocked position.

[0147] The stop portion of the latch 31 is positioned on the pull-out path of the filter element body 100 relative to the receiving cavity 21. This means the stop portion is located in front of the filter element body 100 in the pull-out direction. When the filter element body 100 has a tendency to move relative to the receiving cavity 21 in the pull-out direction, the filter element body 100 abuts against the stop portion and cannot be pulled out. The pull-out path specifically refers to the spatial area traversed by the filter element body 100 from the start of pull-out to the end of pull-out. The end of pull-out means that the tail of the filter element body 100 is completely detached from the receiving cavity 21.

[0148] The filter element body 100 is inserted into the receiving cavity 21 through an opening. A first mating valve 2141 and a second mating valve 2240 are respectively provided at the end of the filter element body 100 along its insertion direction and at corresponding positions in the receiving cavity 21, allowing them to be inserted into each other. Therefore, when the filter element 10 is inserted into the receiving cavity 21 through the opening, the first mating valve 2141 and the second mating valve 2240 can be inserted together to achieve mating. When the filter element 10 is pulled out of the receiving cavity 21, the insertion and mating of the first mating valve 2141 and the second mating valve 2240 can be released. In other words, in this application, the filter element 10 and the receiving cavity 21 are installed in a direct-insertion manner. The insertion and mating of the first mating valve 2141 and the second mating valve 2240 or their disengagement can be achieved simply by inserting or pulling the filter element 10 into or out of the receiving cavity 21 in one direction. This simplifies installation and ensures accurate positioning of the first mating valve 2141 and the second mating valve 2240.

[0149] In addition, by setting a locking component 30, and the latch 31 in the locking component 30 having a blocking position and an unlocking position, the trigger 2 is configured to drive the latch 31 from the blocking position to the unlocking position. When it is necessary to pull out, simply drive the latch 31 from the blocking position to the unlocking position with the trigger 2, so that the latch 31 is in the unlocking position and no longer blocks the removal path of the filter element, allowing the filter element 10 to be pulled out. The operation process is also relatively simple.

[0150] Since the stop portion of the latch 31 is in the unlocked position, it is away from the pull-out path relative to when it is in the blocking position, and is outside the pull-out path. Therefore, during the pull-out process, the latch 31 will not contact the surface of the filter element 10 and will not scratch the filter element 10.

[0151] It should be noted that the trigger element 2 can be a handle 200, in which case the trigger element 2 is connected to the filter element body 100 and can be regarded as part of the filter element 10. Alternatively, in some other embodiments, the trigger element 2 can also be an unlockable or lockable button that can be pressed to switch the latch 31 between the unlocked position and the blocked position. In this case, the trigger element 2 can be set on the body 20. In the following description, this application embodiment uses the trigger element 2 as a handle 200 as an example. The case where the trigger element 2 has other structures is similar and will not be described again here.

[0152] Furthermore, the locking assembly 30 also includes a first elastic element 32, which is configured to always apply an elastic force to the latch 31 to keep the latch 31 in the blocking position, and the trigger 2 is configured to drive the latch 31 to overcome the elastic force so that the latch 31 switches from the blocking position to the unlocked position.

[0153] Thus, since the first elastic element 32 is configured to always apply an elastic force to the latch 31, keeping the latch 31 in the blocking position, and the trigger 2 is configured to drive the latch 31 to overcome the elastic force, switching from the blocking position to the unlocked position, when the trigger 2 is not activated, the first elastic element 32 ensures that the latch 31 is always kept in the blocking position, ensuring that the filter element 10 is blocked and cannot be pulled out of the receiving cavity 21. When it is necessary to pull it out, simply drive the trigger 2 to drive the latch 31 to overcome the elastic force of the first elastic element 32, switching from the blocking position to the unlocked position, so that the latch 31 is in the unlocked position and no longer blocks the removal path of the filter element 10, allowing the filter element 10 to be pulled out. The operation process is also relatively simple. Of course, when the latch 31 is in the blocking position and the trigger 2 is not activated, the latch 31 can be kept in the blocking position under the action of the elastic force of the first elastic element 32, and will not unlock.

[0154] Combination Figure 2 , Figure 3 and Figure 4 The latch 31 is rotatably connected to the body 20 around the first axis and switches between the blocking position and the unlocking position by rotation. The latch 31 has a protrusion 310 on the side facing the filter element 10, and the protrusion 310 forms the aforementioned stop.

[0155] When the latch 31 is rotated to the blocking position, the protrusion 310 is blocked in the pull-out path; when the latch 31 is rotated to the unlocking position, the protrusion 310 is away from the pull-out path relative to when it is in the blocking position.

[0156] The latch 31 is switched between a blocking position and an unlocked position by rotating it. In the blocking position, the protrusion 310 blocks the pull-out path to prevent the filter element 10 from falling out of the receiving cavity 21. In the unlocked position, the protrusion 310 moves away from the pull-out path as the latch 31 rotates, relative to its position in the blocking position. This design saves space and facilitates the switching operation. Specifically, the first axis can be parallel to the pull-out direction of the filter element body 100.

[0157] Continue to refer to Figure 3 and Figure 4 In this embodiment, the body 20 includes a main body 22 and an end plate 23. A receiving cavity 21 is formed in the main body 22, and the end plate 23 surrounds the opening edge of the receiving cavity 21. The latch 31 is hinged to the end plate 23 via a hinge shaft 311. This arrangement is essentially equivalent to placing the latch 31 on the side of the opening of the receiving cavity 21, which facilitates installation. In a specific implementation, for example, the latch 31 may have a hinge hole 312, and the hinge shaft 311 may pass through the hinge hole 312 and be fixed to the end plate 23, thereby hinged the latch 31 to the end plate 23.

[0158] The latch 31 is hinged to the side of the end plate 23 away from the bottom of the receiving cavity 21 via the hinge shaft 311. In this way, the latch 31 is actually located outside the receiving cavity 21, which is easier to install than if it is set inside the receiving cavity 21.

[0159] Furthermore, the body 20 also includes a pressure plate 24 connected to the end plate 23. The pressure plate 24 is located on the side of the end plate 23 away from the bottom of the receiving cavity 21, and the latch 31 is located between the end plate 23 and the pressure plate 24.

[0160] With this configuration, the pressure plate 24 can assist in positioning the latch 31, that is, install the latch 31 in the space defined by the end plate 23 and the pressure plate 24, preventing the latch 31 from disengaging from the hinge shaft 311.

[0161] The opposing surfaces of the end plate 23 and the pressure plate 24 can be provided with a first mounting hole and a second mounting hole (not shown). The first mounting hole on the end plate 23 and the second mounting hole on the pressure plate 24 can be set one-to-one with each other. The two ends of the hinge shaft 311 can be respectively snapped into a set of corresponding first mounting holes and second mounting holes, so that the hinge shaft 311 is mounted between the end plate 23 and the pressure plate 24.

[0162] Of course, the pressure plate 24 is also provided with an avoidance opening 241 at the position corresponding to the opening of the receiving cavity 21, so that the filter element 10 can enter and exit the receiving cavity 21.

[0163] In this embodiment, the first elastic element 32 is a torsion spring; the two free ends of the torsion spring are respectively connected to the body 20 and the latch 31.

[0164] Thus, the torsion spring always applies an elastic force to the latch 31, causing it to rotate toward the filter element 10, thereby making the latch 31 always tend to rotate toward the filter element 10. When the trigger 2 is not operated, the latch 31 is always in the blocking position.

[0165] In specific implementation, for example, you can refer to Figure 4 A snap-fit ​​wall 230 is provided on the surface of the end plate 23 facing the pressure plate 24. The torsion spring body can be fitted onto the hinge shaft 311. One of the two free ends of the torsion spring abuts against the snap-fit ​​wall 230, and the other abuts against the latch 31.

[0166] Furthermore, referring to Figure 5a , Figure 6a , Figure 7 , Figure 8 The filter element assembly 1 also includes an ejector assembly 50, which includes an ejector member 51 (e.g., a pull ring 510) connected to the receiving cavity 21. In some embodiments, the ejector member 51 is disposed within the receiving cavity 21 and is capable of sliding relative to the inner wall of the receiving cavity 21 along the insertion direction of the filter element 10, so that it can be driven by the insertion operation of the filter element 10 and move a certain distance along the insertion direction. The ejector member 51 is used to move from a first position (refer to the first position) along the extraction direction of the filter element 10 when the latch 31 rotates to the point where the protrusion 310 just disengages from the extraction path. Figure 7 Move to the second position (refer to) Figure 8 ), so as to push the filter element 10 out in the pull-out direction.

[0167] With this configuration, during the insertion of the filter element 10, the pull ring 510 is driven by the filter element 10 and moves a certain distance along the insertion direction. During this process, the pull ring 510 supports the filter element 10 and smoothly connects it from the initial position of the pull ring 510 to the end of the receiving cavity 21, making the insertion process of the filter element 10 relatively smooth and easy.

[0168] Figure 6a and Figure 7 The first position of the ejector 51 is shown. Figure 8 The second position of the ejector 51 is shown. With this configuration, when in the unlocked position, the ejector assembly 50 can eject the filter element 10 out of the receiving cavity 21 by a certain distance, making it convenient for the operator to pull out the filter element body 100.

[0169] In the embodiments of this application, reference is made to Figure 5a , Figure 5bThe filter element body 100 has a reduced-diameter end 101 at the insertion direction to form a shoulder structure 1011. The ejector 51 is constructed as an annular pull ring 510, which is fitted onto the reduced-diameter end 101 and abuts against the shoulder structure 1011 when the ejector 51 moves from the first position to the second position. The shoulder structure 1011 is used to move the pull ring 510 within the receiving cavity 21 along the insertion direction when it contacts the pull ring 510 during the insertion of the filter element 10.

[0170] As the ejector 51 moves from the first position to the second position (corresponding to the removal process of the filter element 10), it abuts against the shoulder structure 1011. Therefore, during the process of the ejector 51 moving from the first position to the second position, the filter element 10 is also driven to move from the first position to the second position. On the other hand, when the shoulder structure 1011 contacts the pull ring 510 during the insertion process of the filter element 10, it drives the pull ring 510 to move in the insertion direction within the receiving cavity 21. Furthermore, the pull ring 510 is configured to slide relative to the receiving cavity 21. Since the ring 510 is pushed into the receiving cavity 21 by the filter element 10, the filter element 10 can be inserted inward along the inner wall of the receiving cavity 21 with the pull ring 510 attached.

[0171] In addition, a foolproof groove 1012 is provided on the neck 101, and a foolproof protrusion (not shown) is provided at the corresponding position of the receiving cavity 21. When the filter element body 100 is inserted into the receiving cavity 21, the foolproof groove 1012 and the foolproof protrusion cooperate with each other to fix the relative position of the filter element body 100 and the receiving cavity 21 in the circumferential direction.

[0172] Furthermore, at least a portion of the surface profile of the inner circumferential side of the ejector 51 matches the outer circumferential profile of the insertion direction end of the filter element 10, such as the reduced diameter end 101, and the side of the pull ring 510 facing the opening of the receiving cavity 21 is provided with a guide slope 5101 that is radially outward of the pull ring 510. Here, the reduced diameter end 101 refers to the portion of the filter element 10 near the end where the diameter is slightly smaller than that of the main body.

[0173] By matching at least a portion of the surface contour of the inner circumference side of the ejector 51 with the outer circumference contour of the reduced-diameter end 101, the ejector 51 can apply force to the filter element body 100 throughout the entire circumference. The force applied to the filter element body 100 is relatively uniform throughout the entire circumference, preventing skewing of the filter element body 100 during ejection or insertion. The guide slope 5101 also facilitates the insertion end of the filter element body 100 into the pull ring 510.

[0174] In other words, the insertion end of the filter element 10 can be inserted into the pull ring 510. Furthermore, as described above, the guide slope 5101 is located on the side of the pull ring 510 facing the insertion end of the filter element 10 and is inclined radially outwards towards the pull ring 510 to guide the insertion of the insertion end of the filter element 10. This facilitates the insertion of the filter element 10 into the pull ring 510.

[0175] During insertion, the filter element 10 is guided by the guide slope 5101 before it is fully inserted, and is gradually inserted into the pull ring 510. This avoids the filter element 10 being too heavy and the alignment being difficult due to its long dimension in the insertion direction.

[0176] More specifically, by means of an ejector 51, such as a pull ring 510, connected to the inner wall of the receiving cavity 21, the insertion end of the filter element 10 can be inserted into the pull ring 510. Therefore, when the filter element 10 enters the receiving cavity 21, as it is further inserted, it will be inserted into the inner circumference of the pull ring 510, and the insertion end of the filter element 10 will be supported by the pull ring 510 and will not sag. Compared with the prior art, this greatly reduces the installation difficulty and makes operation easier. Furthermore, the pull ring 510 can be used to achieve relative positioning with the receiving cavity 21, so that the relative positions of the first mating valve 2141 and the second mating valve 2240 can be fixed, making it easy to ensure the accurate positioning of the first mating valve 2141 and the second mating valve 2240, making it easy to install the filter element 10 in place, thereby improving the installation reliability of the filter element 10.

[0177] Continue to refer to Figure 5a and Figure 5b The pull ring 510 also includes a circumferential mating surface 5100 that is connected to the guide slope 5101. The guide slope 5101 and the circumferential mating surface 5100 together define the surface of the inner circumferential side of the pull ring 510.

[0178] The end face of the shoulder structure 1011 facing the guide slope 5101 is constructed to be a slope that can contact and engage with the guide slope 5101, and the circumferential mating surface 5100 contacts and engages with the outer circumferential surface of the reduced diameter end 101.

[0179] Thus, when the filter element 10 is inserted into the pull ring 510 and moves the pull ring 510 inward, the shoulder structure 1011 can cooperate with the pull ring 510 more smoothly, making the insertion process more stable.

[0180] Furthermore, the pull ring 510 includes an annular inner wall 512, a guide wall 513, and an outer wall 514, with the inner wall 512 spaced radially inside the outer wall 514. The radial ends of the guide wall 513 are respectively connected to the axial ends of the inner wall 512 and the outer wall 514 on the same side. The inner circumferential surface of the inner wall 512 forms a circumferential mating surface 5100, and the inner circumferential surface of the guide wall 513 forms a guide inclined surface 5101. In the above design, the spaced arrangement of the inner wall 512 and the outer wall 514 achieves weight reduction.

[0181] Furthermore, reinforcing ribs 515 are connected between the facing surfaces of the inner wall 512 and the outer wall 514 to improve the structural strength of the pull ring 510.

[0182] In this embodiment of the application, combined with Figure 3 , Figure 5a , Figure 7 and Figure 8 The outer circumferential side of the ejector 51 is provided with a guide ear 511.

[0183] A guide groove 213 is provided on the cavity wall of the receiving cavity 21 at the position corresponding to the guide ear 511. The guide ear 511 and the corresponding guide groove 213 are guided and engaged in the direction of withdrawal (or insertion). The guide groove 213 includes two first limiting walls 2131 arranged opposite to each other in the direction of withdrawal (or insertion).

[0184] With this configuration, when the guide ear 511 moves along the pull-out direction, the ejector 51 can only reciprocate between the first position and the second position due to the stops provided by the two first limiting walls 2131. Of course, the first limiting wall 2131 facing the bottom of the receiving cavity can be formed using the base plate 224 described later. Naturally, the number of guide ears 511 can be set to two, and correspondingly, the number of guide grooves 213 can also be set to two.

[0185] In this embodiment, reference continues to be made to... Figure 7 A second elastic element 53 is provided between the pull ring 510 and the bottom wall of the receiving cavity 21. The second elastic element 53 is used to always apply an elastic force away from the bottom wall of the receiving cavity 21 to the pull ring 510. Furthermore, when the latch 31 is in the unlocked position, the second elastic element 53 pushes the pull ring 510 in the pull-out direction of the filter element 10.

[0186] With this configuration, when the filter element 10 needs to be pulled out, the second elastic element 53 can cause the pull ring 510 to apply a force to the filter element 10 in the pulling direction. When the user does not apply force to the filter element 10, the filter element 10 can be pushed out a certain distance to assist the process of pulling out the filter element 10.

[0187] Combination Figure 5a and Figure 7Furthermore, an elastic element positioning seat 54 is provided on the bottom wall of the accommodating cavity 21, and the two ends of the second elastic element 53 are respectively connected to the elastic element positioning seat 54 and the guide ear 511.

[0188] This design facilitates the installation of the second elastic element 53.

[0189] In this embodiment of the application, in conjunction with the appendix Figure 6a , Figure 6b , Figure 7 The receiving cavity 21 includes a first cavity segment 2101 and a second cavity segment 2102 connected along the insertion direction. When the receiving cavity 21 is projected onto the bottom wall of the receiving cavity 21, the outer contour of the projection of the first cavity segment 2101 is located outside the outer contour of the projection of the second cavity segment 2102, that is, the inner diameter of the first cavity segment 2101 is larger than that of the second cavity segment 2102, and the second cavity segment 2102 can be used to support the smaller diameter necked end 101. Therefore, when the filter element 10 is installed in the receiving cavity 21, the necked end 101 is accommodated in the second cavity segment 2102 and is limited and cannot continue to move toward the bottom wall of the receiving cavity 21.

[0190] Furthermore, the length of the reduced-diameter end 101 along the insertion direction is smaller than the length of the second cavity section 2102. This arrangement ensures that the reduced-diameter end 101 can fully enter the second cavity section 2102, thereby enabling the first mating valve 2241 on the filter element 10 to reliably engage with the second mating valve 2240 on the bottom wall of the accommodating cavity 21.

[0191] In this embodiment, the central axis of the pull ring 510 coincides with the central axis of the corresponding accommodating cavity 21.

[0192] With this configuration, during the insertion of the filter element 10 into the receiving cavity 21, the central axis of the filter element 10 will not deflect before and after the insertion of the pull ring 510, thus facilitating the smooth alignment of the first mating valve 2241 and the second mating valve 2240.

[0193] In this embodiment of the application, combined with Figure 3 , Figure 5a and Figure 9 The water purifier 1000 also includes an anti-scratch component, which is configured to apply force to the latch 31 when the latch 31 is switched to the unlocked position to restrict the stop portion of the latch 31 from moving toward the pull-out path, so that the latch 31 remains in the unlocked position. This prevents the filter cartridge 10 from being scratched by the latch 31 during the process of pulling out or inserting it.

[0194] Furthermore, the anti-scratch component is also configured to be located on the side of the latch 31 opposite to the pull-out path when the latch 31 is in the blocking position. Thus, when the latch 31 is in the blocking position, the movement of the stop portion of the latch 31 is not restricted.

[0195] Furthermore, the anti-scratch component is used to move along the pull-out direction of the filter body 100 when the latch 31 rotates to the point where the stop portion of the latch 31 is disengaged from the pull-out path, and to block the latch 31 on the side facing the pull-out path so that the latch 31 remains in the unlocked position.

[0196] In a specific implementation, the ejector assembly 50 also includes a pull rod 52, which is connected to the guide ear 511 and extends through the first limiting wall 2131 toward the latch 31. The pull rod 52 can form the aforementioned anti-scratch component.

[0197] exist Figure 9 In the middle, the two ejector pieces 51 corresponding to the uppermost filter element 10 are in the second position, and the ejector pieces 51 corresponding to the two lower filter elements 10 are in the first position. When the ejector pieces 51 are in the second position, the pull rod 52 abuts against the side of the latch 31 facing the filter element 10, as shown. Figure 9 The filter element 10 is located at the top.

[0198] This design allows the lever 52 to block the latch 31 from the inside, keeping the latch 31 in the unlocked position. Since the protrusion 310 is disengaged from the filter element 10's pull-out path, it will not contact the filter element 10 during pull-out, preventing scratches. Furthermore, during filter element 10 insertion, the protrusion 310 remains disengaged from the filter element 10's pull-out path under the action of the lever 52, thus preventing contact and again preventing scratches.

[0199] In practice, the pull rod 52 is connected to the guide ear 511 and extends through the first limiting wall 2131 toward the latch 31. That is, the part of the pull rod 52 connected to the guide ear 511 is located in the receiving cavity 21, and the part of the rod extends through the first limiting wall 2131 and out of the receiving groove, and extends toward the latch 31.

[0200] In specific implementation, refer to Figure 8 The guide ear 511 is provided with a through hole 5111, the pull rod 52 passes through the through hole 5111, and a limiting ring 521 is sleeved on the pull rod 52. The outer periphery of the limiting ring 521 is locked in the through hole 5111.

[0201] This design allows the pull rod 52 to be fixed in the through hole 5111 via the limiting ring 521, preventing relative movement between the pull rod 52 and the guide ear 511. In a specific implementation, the outer circumferential surface of the pull rod 52 may be provided with an annular groove (not shown), and the limiting ring 521 is locked and positioned in the annular groove.

[0202] Continue to refer to Figure 6aFurthermore, the side of the pull rod 52 that is away from the guide ear 511 passes through the end plate 23.

[0203] Thus, one end of the pull rod 52 is connected to the guide ear 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 its length. The length direction of the pull rod 52 can be, for example, along the pull-out direction of the filter element 10. The end plate 23 is provided with a guide hole 520, so that the movement of the pull rod 52 can be guided through the guide hole 520.

[0204] In this embodiment, the number of latches 31 corresponding to one filter element 10 can be set as needed. For example, one filter element 10 can correspond to two latches 31, with the two latches 31 arranged opposite each other. The number of guide ears 511 and pull rods 52 are both set to two. This allows the filter element 10 to be positioned in two locations, making the positioning of the filter element 10 more reliable.

[0205] Continue to refer to Figure 9 The latch 31 includes an abutting section 313 that abuts against the pull rod 52 and a rotating connecting section 314 that is rotatably connected to the body 20.

[0206] In one embodiment, the protrusion 310 of the latch 31 may be located between the abutment section 313 and the rotatable connecting section 314.

[0207] Since the protrusion 310 of the latch 31 is located between the abutment section 313 and the rotating connection section 314, the pull rod 52 and the hinge shaft 311 are located on both sides of the protrusion 310, and the layout of each structure is relatively uniform.

[0208] In this case, when the ejector 51 is in the second position, the lever 52 is located on the side of the abutment section 313 of the latch 31 facing the filter element 10, preventing the protrusion 310 from rotating in the direction closer to the filter element 10, so as to keep the latch 31 in the unlocked position.

[0209] In another embodiment, there are multiple filter elements 10, and the latches 31 corresponding to two adjacent filter elements 10 are located between the two adjacent filter elements 10 and are hinged to the body 20 through the same hinge axis 311; for example Figure 9 The latch 31 is located between the two filter elements 10 in the lower layer. Figure 10a , Figure 10b The diagram shows a connection diagram of the two latches 31. As previously described, latch 31 includes an abutting section 313 that abuts against the pull rod 52 and a rotating connecting section 314 that is rotatably connected to the body 20. The rotating connecting section 314 is located between the protrusion 310 and the abutting section 313.

[0210] Since the two latches 31 rotate in opposite directions, when arranged as described above, the length between the rotation axis of the latch 31 and the protrusion 310 is shorter when at least one of the two latches 31 is unlocked. Therefore, the rotation stroke of the two protrusions 310 is shorter, which can minimize the rotation space reserved for the rotation of the latches 31. This rotation space is located between the two filter elements 10. The reduction of the rotation space can also reduce the distance between the two filter elements 10, making the structure more compact.

[0211] In this situation, combined Figure 10a and Figure 10b When the ejector 51 is in the second position, the lever 52 is located on the side of the abutment section 313 of the latch 31 away from the filter element 10, so as to prevent the protrusion 310 from rotating toward the direction closer to the filter element 10, so as to keep the latch 31 in the unlocked position.

[0212] If there are three filter elements 10, the three filter elements 10 are defined as the first filter element 11, the second filter element 12 and the third filter element 103 respectively. Only the latch 31 between the first filter element 11 and the third filter element 103 is set with the structure that the rotating connecting section 314 is located between the protrusion 310 and the abutment section 313. The other latches 31 of the first filter element 11 and the third filter element 103, as well as the latch 31 corresponding to the second filter element 12, all adopt the structure that the protrusion 310 of the latch 31 is located between the abutment section 313 and the rotating connecting section 314.

[0213] In this embodiment of the application, when the rotating connecting section 314 is located between the protrusion 310 and the abutting section 313, the rotating connecting section 314 of the latch 31 is provided with two hinge arms 3141 arranged at intervals along the pull-out direction of the filter element 10, and the two hinge arms 3141 are penetrated by a corresponding hinge shaft 311.

[0214] Two latches 31 are hinged to the same hinge axis 311, with the two hinge arms 3141 of one latch 31 located between the two hinge arms 3141 of the other latch 31.

[0215] Reference Figure 2 The body 20 also includes at least one set of side plates arranged on the outside of the body 22, with each side plate arranged in a corresponding manner to the pull rod 52.

[0216] The side plate assembly includes two side plates 25 extending along the extension direction of the tie rod 52. The ends of the two side plates 25 are respectively connected to a first limiting wall 2131 and an end plate 23. The two side plates 25 in the side plate assembly are arranged opposite to each other and together define a channel for accommodating the tie rod 52. It should be noted that this channel is a semi-open channel with one side connected to the outside in the longitudinal direction, which facilitates the installation of the tie rod 52.

[0217] With this configuration, 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.

[0218] Combination Figure 5a and Figure 7 As previously described, the elastic element positioning seat 54 is connected to the bottom wall of the receiving cavity 21. The second elastic element 53 is connected between the ejector 51 and the elastic element positioning seat 54, and is used to always apply an elastic force away from the elastic element positioning seat 54 to the ejector 51.

[0219] With this configuration, once the protrusion 310 has just left the pull-out path, the ejector 51 will move along the aforementioned pull-out direction under the elastic force of the second elastic member 53.

[0220] Reference Figure 2 , Figure 5a , Figure 11 In this embodiment, the trigger 2 is connected to the filter element body 100. Specifically, the trigger 2 is rotatably connected to the filter element body 100 around the second axis. The side wall of the filter element body 100 along the pull-out direction is provided with a first limiting groove 1001 into which the protrusion 310 extends.

[0221] With this configuration, the protrusion 310 extends into the first limiting groove 1001. When the filter element 10 tends to be pulled out relative to the receiving cavity 21, the groove wall (stop groove wall 10011) of the first limiting groove 1001 will abut against the protrusion 310. The protrusion 310 blocks the pull-out path of the filter element 10, preventing the filter element 10 from continuing to move outward.

[0222] In practice, the first axis and the second axis have an included angle; for example, the first axis and the second axis can be perpendicular.

[0223] The filter element body 100 may include a filter section 110 and an end cap 120 and a decorative cap 130 sequentially disposed at the end of the filter section 110. A first limiting groove 1001 may be formed on the decorative cap 130. The connection relationship between the end cap 120 and the decorative cap 130, and the connection relationship between the end cap 120 and the filter section 110, will be described in detail later. It should be noted that the end cap 120 and the decorative cap 130 may be formed integrally or separately. In the embodiment where they are formed separately, the decorative cap 130 may be designed in different styles according to different usage needs to improve the user experience. In the case where the end cap 120 and the decorative cap 130 are formed separately, the specific connection method between the handle 20 and the decorative cap 130 will be described in detail later. In the step where the end cap 120 and the decorative cap 130 are formed integrally, the connection method between the handle 200 and the decorative cap is similar to that in the separate form, and will not be repeated here.

[0224] Combination Figure 11 and Figure 12 As mentioned above, the trigger 2 can be rotatably connected to the filter body 100 around the second axis. The trigger 2 is provided with a pushing part that can push the protrusion 310. The pushing part is configured to contact the protrusion 310 during the rotation of the trigger 2 and push the latch 31 to rotate around its axis away from the filter 10 to the unlock position.

[0225] The protrusion 310 is provided with a first abutting surface 3105 and a first guide slope 3101 that are adjacent to each other and set at an angle. The pushing part 3103 includes a second guide slope 3102 and a second abutting surface 3104 set on the trigger member 2. The second guide slope 3102 and the second abutting surface 3104 are adjacent to each other and set at an angle. The first guide slope 3101 and the second guide slope 3102 form a slope fit.

[0226] The trigger 2 is configured to rotate the second guide slope 3102 and the second abutment surface 3104, causing the second guide slope 3102 to press against the first guide slope 3101 and the second abutment surface 3104 to press against the first abutment surface 3105, thereby driving the latch 31 to rotate away from the filter element 10 to the unlocked position. Thus, by simply rotating the trigger 2, the latch 31 can be rotated to the unlocked position through the relative action of the pushing part 3103 and the protrusion 310.

[0227] Figure 12 The attached diagram at the top of the middle view shows the latch 31 in the blocking position. At this time, part of the protrusion 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 attached diagram at the bottom of the middle view is a schematic diagram of the latch 31 in the unlocked position, at which time the protrusion 310 exits from the first limiting groove 1001 and the second limiting groove 1002.

[0228] Combination Figure 11 and Figure 12 Furthermore, the trigger element 2 is a handle 200, and there are two first limiting grooves 1001. The two ends of the handle 200 are respectively rotatably connected to one of the first limiting grooves 1001.

[0229] The handle 200 has a second limiting groove 1002 on each of its two opposite ends. A notch is provided on one wall of the second limiting groove 1002 so that the second limiting groove 1002 communicates with the first limiting groove 1001. In the wall of the second limiting groove 1002, the wall adjacent to the notch forms a second guide slope 3102. When the latch 31 is in the blocking position, a part of the protrusion 310 is located in the first limiting groove 1001 and the other part is located in the second limiting groove 1002.

[0230] With this configuration, starting from when the latch 31 is in the blocking position, the trigger 2 begins to rotate. As the trigger 2 drives the second guide slope 3102 to rotate, the second guide slope 3102 abuts against and lifts the first guide slope 3101 while slidingly engaging with the first guide slope 3101. The contact area between the second guide slope 3102 and the first guide slope 3101 gradually decreases until the protrusion 310 can gradually disengage from the notch into the second limiting groove 1002. At this point, the opposing surfaces of the two ends of the handle 200 abut against the first guide slope 3101, continuing to lift the first guide slope 3101 until the protrusion 310 is pushed out of the first limiting groove 1001.

[0231] In practice, the two second limiting grooves 1002 can be arranged opposite to each other. In this way, the two protrusions 310 can be engaged in the relative positions of the filter element 10, so that the filter element 10 is subjected to a more uniform engaging force.

[0232] Furthermore, the groove wall in the first limiting groove 1001 used for blocking the protrusion 310 is defined as a stop groove wall 10011. The width of the second guide slope 3102 is smaller than the width of the first guide slope 3101. When the latch 31 is in the blocking position, along the pull-out direction of the filter element 10, the second guide slope (3102) and the stop groove wall 10011 are spaced apart, such as... Figure 11 As shown, with this configuration, when the trigger 2 rotates, the protrusion 310 can smoothly exit the second guide groove 213 and the first limit groove 1001 through the notch on the limit groove 1002.

[0233] Furthermore, in the case where one filter element 10 corresponds to two latches 31, the protrusions 310 of the two latches 31 are arranged opposite to each other, and the line connecting the two protrusions 310 passes through the center of the filter element body 100.

[0234] With this configuration, the two protrusions 310 are symmetrically positioned relative to 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 conjunction with the latch 31 are also two each.

[0235] In the embodiments of this application, reference is made to Figure 2 and Figure 13 As mentioned earlier, when there are three filter elements 10, the three filter elements 10 are defined as the first filter element 11, the second filter element 12, and the third filter element 103, respectively. Among them, the first filter element 11, the second filter element 12, and the third filter element 103 are located parallel to each other within the body 20.

[0236] The first filter element 11, the second filter element 12, and the third filter element 103 are cascaded sequentially and are all constructed in a cylindrical shape. 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 alternately in the left-right direction. The second filter element 12 is located above the first filter element 11 and the third filter element 103. The vertical direction and the left-right direction are perpendicular to the axis O1 of the first filter element.

[0237] Along the vertical direction, the lowermost point D1 of the second filter element is positioned slightly lower than the uppermost point C1 of the first filter element and the uppermost point E1 of the third filter element, and slightly higher than the axis O1 of the first filter element and the axis O3 of the third filter element. Figure 13 In the middle, draw a first straight line L1 that passes through the lowest point D1 of the second filter element and runs along the left-right direction. The first straight line L1 is below the highest point C1 of the first filter element and the highest 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.

[0238] Along the left-right direction, the leftmost point D2 of the second filter element is offset to the left relative to the axis O1 of the first filter element, and the rightmost point D3 of the second filter element is offset to the right relative to the axis O3 of the third filter element. Figure 13 In the middle, draw a second straight line L2 passing through the leftmost point D2 of the second filter element and along the vertical direction, and a third straight line L3 passing through the rightmost point D3 of the second filter element and along the vertical direction. The second straight line L2 is to the left of the axis O1 of the first filter element, and the third straight line L3 is to the right of the axis O2 of the third filter element.

[0239] By arranging the lowermost point D1 of the second filter element slightly below the uppermost point C1 of the first filter element and the uppermost point E1 of the third filter element in the vertical direction, and slightly above the axis O1 of the first filter element and the axis O3 of the third filter element, the second filter element 12 is brought as close as possible to the first filter element 11 and the third filter element 103 in the vertical direction.

[0240] By positioning the leftmost point D2 of the second filter element to the left relative to the axis O1 of the first filter element, and the rightmost point of the second filter element 10 to the right relative to the axis O3 of the third filter element, the space occupied by the second filter element 12, the first filter element 11, and the third filter element 103 in the left-right direction is minimized.

[0241] This arrangement ensures that the second filter element 12, the first filter element 11, and the third filter element 103 are arranged as close to each other as possible, thus minimizing the total space occupied by the second filter element 12, the first filter element 11, and the third filter element 103.

[0242] In practice, 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 large particles of mud, sand, and rust, adsorb discoloration and odor, and remove residual chlorine. The third filter element 103 can be an activated carbon filter element 10, which can inhibit microorganisms and improve taste.

[0243] When filter element assembly 1 is applied within water purifier 1000, the height and width directions of water purifier 1000 as seen by the user facing the front of water purifier 1000 can be understood as the aforementioned up-down and left-right directions. When 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 located within the horizontal plane. Of course, in some other embodiments, if water purifier 1000 is not absolutely placed on a horizontal plane, the up-down direction and the vertical direction may have an angle, and the left-right direction and the horizontal direction may also have an angle. In this embodiment, it is sufficient that the up-down direction, the left-right direction, and the axis O2 of the second filter element are perpendicular to each other.

[0244] In this embodiment, 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. This arrangement is not only more aesthetically pleasing but also saves space to the greatest extent.

[0245] Furthermore, the diameter of the first filter element 11 is the same as the diameter of the third filter element 103, while the diameter of the second filter element 12 is larger than the diameter of the first filter element 11. This arrangement also saves space occupied by the filter element assembly 1 in the vertical direction.

[0246] Furthermore, referring to Figure 3 The body 20 has three accommodating cavities 21, in which the first filter element 11, the second filter element 12, and the third filter element 103 are respectively housed. The sides of the three accommodating cavities 21 that are close to each other are interconnected.

[0247] This configuration, compared to setting up three independent compartments, can reduce the weight of the machine body by 20 and simplify the manufacturing process.

[0248] Combination Figure 13 , Figure 14a and Figure 15a Furthermore, the body 20 includes a main body 22, which includes a first filter frame 221, a second filter frame 222 and a third filter frame 223, and a base plate 224 connected to one side of the first filter frame 221, the second filter frame 222 and the third filter frame 223.

[0249] The first filter frame 221, the second filter frame 222, and the third filter frame 223 are connected end to end in sequence, and the inner contour shapes of the first filter frame 221, the second filter frame 222, and the third filter frame 223 respectively match the partial 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 frame 221, the second filter frame 222, and the third filter frame 223 and the base plate 224 respectively define three mutually communicating receiving cavities 21. Three pull rings 510 can be correspondingly provided on the inner walls of the first filter frame 221, the second filter frame 222, and the third filter frame 223.

[0250] The first filter frame 221, the second filter frame 222, and the third filter frame 223 are connected end to end in sequence, meaning that the first filter frame 221, the second filter frame 222, and the third filter frame 223 are connected end to end in the circumferential direction, and the three accommodating cavities 21 are interconnected, which can save material for the main body 22 and reduce weight.

[0251] Furthermore, the first filter element frame 221 surrounds more than half of the circumferential area of ​​the first filter element 11. The second filter element frame 222 surrounds more than half of the circumferential area of ​​the second filter element 12. The third filter element frame 223 surrounds more than half of the circumferential area of ​​the third filter element 103.

[0252] This configuration ensures that the first filter element 11 can be securely positioned by the first filter element frame 221 without entering 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 securely positioned within the second filter element frame 222 and the third filter element frame 223.

[0253] Furthermore, the first filter frame 221 and the second filter frame 222, the second filter frame 222 and the third filter frame 223, and the connection position between the third filter frame 223 and the first filter frame 221 are all provided with an inwardly recessed structure 2200.

[0254] In this way, the space of the concave structure 2200 can be used to install other components, such as diaphragm pump 2', pipe 3, etc., so as to make full use of the space.

[0255] Furthermore, as mentioned above, the bottom of the first filter element 11, the second filter element 12, and the third filter element 103 facing the accommodating cavity 21 are each provided with a plurality of first mating valves 2141. The base plate 224 is provided with second mating valves 2240 that are inserted and mated in a one-to-one correspondence with the first mating valves 2141.

[0256] A water pipe (not shown) is formed in the base plate 224, which is connected to each of the second cooperating valves 2240. The water pipe is used to cascade the first filter element 11, the second filter element 12, and the third filter element 103 in sequence. The water pipe can be a silicone tube or a water flow channel formed by the joining of two plates.

[0257] Both the first filter element 11 and the third filter element 103 have two sets of first matching valves 2141 and second matching valves 2240. For the first filter element 11, one set of first matching valves 2141 and second matching valves 2240, when inserted and matched, is used to allow water to enter the first filter element 11 through the water pipe in the base plate 224. The other set of first matching valves 2141 and second matching valves 2240, when inserted and matched, is used to allow the filtered water in the first filter element 11 to enter the water pipe. The arrangement of the two sets of first matching valves 2141 and second matching valves 2240 on the third filter element 103 is similar and will not be described in detail here.

[0258] The second filter element 12 has three sets of first matching valves 2141 and second matching valves 2240. One set of first matching valves 2141 and second matching valves 2240 is inserted and matched to allow water to enter the second filter element 12 through the water pipe in the base plate 224. The other two sets of first matching valves 2141 and second matching valves 2240 are inserted and matched to allow the filtered water in the second filter element 12 to enter the water pipe.

[0259] Combination Figure 3 As mentioned above, the filter element assembly 1 also includes an end plate 23, which is connected to the side of the first filter element frame 221, the second filter element frame 222 and the third filter element frame 223 that is away from the bottom plate 224.

[0260] The end plate 23 is provided with a first filter element inlet / outlet 231, a second filter element inlet / outlet 232, and a third filter element inlet / outlet 233, which are respectively connected to the three accommodating cavities 21. The outlines of the first filter element inlet / outlet 231, the second filter element inlet / outlet 232, and the third filter element inlet / outlet 233 correspond to the first filter element 11, the second filter element 12, and the third filter element 103, respectively. Therefore, the junction positions of the first filter element inlet / outlet 231, the second filter element inlet / outlet 232, and the third filter element inlet / outlet 233 are not directly connected, but are provided with a connecting structure 234. The connecting structure corresponds to the position where the three accommodating cavities 21 intersect and connect with each other.

[0261] With this configuration, the first filter element inlet / outlet 231, the second filter element inlet / outlet 232, and the third filter element inlet / outlet 233 can guide the installation of the first filter element 11, the second filter element 12, and the third filter element 103.

[0262] Furthermore, the first filter element 11, the second filter element 12, and the third filter element 103 all include a filter element body 100. The filter element assembly 1 also includes a locking component 30 and a trigger element 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 component 30 and at least one trigger element 2.

[0263] In addition, as mentioned above, the main body 22 is constructed with three accommodating cavities 21 with openings. The first filter element 11, the second filter element 12 and the third filter element 103 are each inserted and removed into the corresponding accommodating cavity 21 through an opening.

[0264] The latches 31 corresponding to the first filter element 11, the second filter element 12, and the third filter element 103 are all hinged to the end plate 23 via the hinge shaft 311.

[0265] Furthermore, a latch 31 corresponding to the first filter element 11 and a latch 31 corresponding to 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 via the same hinge axis 311. In this way, compared with the scheme in which the first latch 31 and the third latch 31 are hinged to the end plate 23 via different hinge axes 311, space can be further saved.

[0266] In the embodiments of this application, reference is made to Figure 15b and Figure 15c The water purifier 1000 also includes a hot water container 5, a booster pump 7, and a purified water tank 4 arranged between the hot water container 5 and the booster pump 7. The purified water tank 4 is connected to the hot water container 5, and the booster pump 7 is connected between the first filter element 11 and the second filter element 12.

[0267] The hot water container 5, the clean water tank 4, and the booster pump 7 are arranged on the upper side of the body 20, that is, the filter element assembly 1, and the clean water tank 4 at least partially surrounds the booster pump 7.

[0268] This configuration allows for efficient use of the space between the booster pump 7 and the hot water container 5. Of course, the effect is most pronounced when both the hot water container 5 and the booster pump 7 are cylindrical.

[0269] Furthermore, the hot water container 5, the purified water tank 4, and the booster pump 7 are arranged sequentially in the front-to-back direction, and the width of the purified water tank 4 in the left-to-right direction is greater than the width of the booster pump 7 in the left-to-right direction. The front-to-back direction is perpendicular to both the up-and-down and left-to-right directions. For example, the front side could be the side of the water purifier 1000 facing the user when in use.

[0270] In practice, 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 booster pump 7 structure. Furthermore, the utilization effect of the space between the hot water container 5 and the booster pump 7 is most obvious when the width dimensions of the hot water container 5 and the purified water tank 4 in the left and right directions are approximately equal.

[0271] In this embodiment, the width of the hot water container 5, the purified water tank 4, and the booster pump 7 in the left-right direction is smaller than the width of the body 20, i.e., the width of the filter element assembly 1 in the left-right direction. The distance between the outermost parts of the hot water container 5 and the booster pump 7 in the front-back direction is smaller than the length of the body 20, i.e., the length of the filter element assembly 1 in the front-back direction. Thus, the hot water container 5, the purified water tank 4, and the booster pump 7 are arranged completely above the filter element assembly 1.

[0272] In this embodiment, a heater 8 is provided on the side of the hot water container 5 away from the clean water tank 4. The heater 8 is located on the upper side of the filter element assembly 10 and is connected to the outlet of the hot water container 5.

[0273] Thus, the heater 8 can also be located on the upper side of the filter element assembly 10, which can make better use of the space on the upper side of the filter element assembly 10.

[0274] See Figure 1 , Figure 5a , Figure 16 and Figure 18 One embodiment of this application provides a filter element 10, which includes a filter element body 100, a handle 200, and a positioning mechanism 140. The filter element body 100 includes a mounting shell 13. (See also...) Figures 16 to 19 ,as well as Figure 21 The positioning mechanism 140 is connected to the mounting housing 13. The handle 200 is rotatably connected to the mounting housing 13 so that the handle 200 is in a gripping position. Figure 16 As shown), and the storage status ( Figure 17 (As shown). The positioning mechanism 140 can apply an elastic force to the handle 200 so that the handle 200 is held in a gripped state by abutting against the mounting housing 13; the positioning mechanism 140 can also apply an elastic force to the handle 200 so that the handle 200 is held in a stored state by abutting against the mounting housing 13.

[0275] 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 is held 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 is held 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.

[0276] 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.

[0277] 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.

[0278] See Figure 5a , Figures 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.

[0279] 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.

[0280] See Figures 16 to 19 In some embodiments, the handle 200 has a first positioning surface 206 and a second positioning surface 207; when the handle 200 is rotated to the position of the first positioning surface 206 toward the positioning mechanism 140, the positioning mechanism 140 can apply an elastic force to the first positioning surface 206 so that the handle 200 abuts against the mounting housing 13 (decorative cover 130); when the handle 200 is rotated to the position of the second positioning surface 207 toward the positioning mechanism 140, the positioning mechanism 140 can apply an elastic force to the second positioning surface 207 so that the handle 200 abuts against the mounting housing 13 (decorative cover 130).

[0281] See Figures 16 to 19 In some embodiments, the positioning mechanism 140 includes a top block 141 elastically connected to the mounting housing 13 (decorative cover 130); when the handle 200 is rotated to the position where the first positioning surface 206 faces 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 housing 13 (decorative cover 130); when the handle 200 is rotated to the position where the second positioning surface 207 faces 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 housing 13 (decorative cover 130).

[0282] See Figures 16 to 19 ,as well as Figure 21 and Figure 22In some embodiments, the handle 200 has a gripping portion 201 and a rotating portion 202 connected together. The rotating portion 202 is rotatably connected to the mounting housing 13 (decorative cover 130). The rotating portion 202 has a first positioning surface 206 and a second positioning surface 207. When the rotating portion 202 rotates to the position where the first positioning surface 206 faces the top block 141, the top block 141 elastically abuts against the first positioning surface 206 to apply an elastic force tending towards uprightness to the gripping portion 201 until the gripping portion 201 abuts against the mounting housing 13 (decorative cover 130). When the rotating portion 202 rotates to the position where the second positioning surface 207 faces the top block 141, the top block 141 elastically abuts against the second positioning surface 207 to apply an elastic force tending towards horizontalness to the gripping portion 201 until the gripping portion 201 abuts against the mounting housing 13 (decorative cover 130).

[0283] Specifically, a top block 141 is elastically connected to the decorative cover 130, and a handle 200 is rotatably connected to the decorative cover 130 via a rotating part 202, allowing the handle 200 to switch between a gripping state and a stored state. The user can operate the gripping part 201 to rotate the rotating part 202 relative to the decorative cover 130. During rotation, the rotating part 202 always elastically abuts against the top block 141, and the degree of pressure exerted on the top block 141 varies depending on the position of the rotating part 202. The top block 141 can reciprocate elastically due to the varying degrees of pressure exerted on it by the rotating part 202. When the rotating part 202 rotates to the point of almost reaching the gripping state, the first positioning surface 206 of the rotating part 202 faces the top block 141, and the top block 141 elastically abuts against the first positioning surface 206, thereby pressing the gripping part 201 against the decorative cover 130. The handle 200 is temporarily restricted to its current position, and the gripping part 201 can stand stably upright, not easily shaking, so as to be gripped and pulled. When the rotating part 202 rotates to the point of almost reaching the storage state, the second positioning surface 207 of the rotating part 202 faces the top block 141, and the top block 141 elastically abuts against the second positioning surface 207, thereby pressing the gripping part 201 against the decorative cover 130. The handle 201 is temporarily restricted to its current position, and the gripping part 201 can stably remain horizontal relative to the filter element body 100, so as not to shake when the filter element is stored and installed in the water purifier.

[0284] See Figure 18 , Figure 19 and Figure 21 Alternatively, in other embodiments, when the rotating part 202 rotates to the position where the first positioning surface 206 faces the top block 141, the top block 141 elastically abuts against the first positioning surface 206, so that the second positioning surface 207 abuts against the mounting shell 13 (decorative cover 130). When the rotating part 202 rotates to the position where the second positioning surface 207 faces the top block 141, the top block 141 elastically abuts against the second positioning surface 207, so that the first positioning surface 206 abuts against the mounting shell 13 (decorative cover 130).

[0285] Specifically, when the handle 200 is about to be gripped, the top block 141 elastically abuts against the first positioning surface 206, causing the second positioning surface 207 to abut against the inner wall of the decorative cover 130, thereby eliminating any rotational play in the rotating part 202 and preventing it from wobbling. When the handle 200 is about to be folded up, the top block 141 elastically abuts against the second positioning surface 207, causing the first positioning surface 206 to abut against the inner top wall of the decorative cover 130, thereby eliminating any rotational play in the rotating part 202 and preventing it from wobbling.

[0286] In the above embodiments, the rotating part 202 rotates to different positions in the two states, 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 keeping the handle 200 stably in the current position in both states and preventing it from shaking.

[0287] In other embodiments, in the gripped state, the top block 141 can also elastically abut against the first positioning surface 206, so that other positions on the rotating part 202 abut against the decorative cover 130. Similarly, in the stored state, the top block 141 can also elastically abut against the second positioning surface 207, so that other positions on the rotating part 202 abut against the decorative cover 130.

[0288] See Figures 16 to 20 In some embodiments, the gripping part 201 has a first limiting surface 2011 and a second limiting surface 2012, and the mounting shell 13 (decorative cover 130) has a first blocking surface 1371 and a second blocking surface 1372. When the rotating part 202 rotates to the position where the first positioning surface 206 faces 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 position where the second positioning surface 207 faces 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.

[0289] In this way, the first blocking surface 1371 abuts against the first limiting surface 2011, and the second blocking surface 1372 abuts against the second limiting surface 2012, so that the handle 200 can be limited in two states, making it stable in both states and not easy to shake.

[0290] In some embodiments, when the gripping part 201 rotates from the retracted state to the gripping state, it can be limited by the second positioning surface 207 abutting against the inner sidewall of the mounting shell 13 (decorative cover 130); when the gripping part 201 rotates from the gripping state to the retracted state, it can be limited by the first positioning surface 206 abutting against the inner top wall of the mounting shell 13 (decorative cover 130).

[0291] In some embodiments, the solutions in the two types of embodiments described above can coexist and work together to limit the movement.

[0292] See Figures 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.

[0293] See Figure 18 , Figure 19 and Figure 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.

[0294] 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.

[0295] 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.

[0296] In other embodiments, the first positioning surface 206 and the second positioning surface 207 may also be at right angles or obtuse angles.

[0297] In other embodiments, the first positioning surface 206 and the second positioning surface 207 may not be adjacent to each other.

[0298] In other embodiments, the first positioning surface 206 and the second positioning surface 207 may also be configured as slightly curved surfaces.

[0299] 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.

[0300] 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.

[0301] Specifically, in the gripped state, the lower half of the positioning slope 1411 (the first slope 14111) abuts against the first positioning surface 206, applying an increasingly vertical force (a counter-clockwise rotational force) to the rotating part 202; in the stowed state, the upper half of the positioning slope 1411 (the second slope 14112) abuts against the second positioning surface 207, applying an increasingly horizontal force (a clockwise rotational force) to the rotating part 202. In the above embodiment, by providing two slopes with different inclination angles, the handle 200 will make a clicking sound during the switching between the two states, thereby reminding whether it has been rotated to the correct position.

[0302] Furthermore, the angle between the second inclined surface 14112 and the vertical direction is greater than the angle between the first inclined surface 14111 and the vertical direction. In other words, the angle between the second inclined surface 14112 and the horizontal direction is smaller than the angle between the first inclined surface 14111 and the horizontal direction.

[0303] In other embodiments, the area on the positioning ramp 1411 that abuts against the two positioning surfaces may be the same in both states.

[0304] See Figure 18 , Figure 19 and Figure 22 In some embodiments, the first positioning surface 206 and the second positioning surface 207 are transitioned by a rounded corner of the transition surface 208.

[0305] As mentioned above, during the rotation of the rotating part 202, the top block 141 and the rotating part 202 are always elastically abutting each other. The transition surface 208 is used to make the transition between the first positioning surface 206 and the second positioning surface 207 smoother, and the elastic abutting process between the top block 141 and the rotating part 202 is less likely to cause jamming and hinder the rotation of the rotating part 202.

[0306] See Figure 18 , Figure 19 and Figure 21In some embodiments, the positioning mechanism 140 includes a positioning elastic member 142, the two ends of which are connected to the top block 141 and the mounting shell 13 (decorative cover 130), respectively. The rotating part 202 is located on the side of the top block 141 away from the positioning elastic member 142. The positioning elastic member 142 is configured to always apply an elastic force to the top block 141 that abuts against the rotating part 202.

[0307] In the above embodiment, the top block 141 is disposed between the rotating part 202 and the positioning elastic member 142. The elastic force of the positioning elastic member 142 causes the top block 141 to tend to move toward the rotating part 202. Thus, when the rotating part 202 rotates to the gripping 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 keeping the entire handle 200 stably in the gripping state and the storage state, and preventing it from shaking.

[0308] Furthermore, the positioning mechanism 140 is located inside the mounting housing 13 (decorative cover 130), and the rotating part 202 also passes through the mounting housing 13 (decorative cover 130). The top block 141 is hollow inside, and one end of the positioning elastic member 142 extends into and connects to the top block 141, while the other end abuts against the inner wall of the decorative cover 130. The positioning elastic member 142 is a spring, which is in a compressed state. The tensile and restoring force of the positioning elastic member 142 ensures that the top block 141 always elastically abuts against the rotating part 202.

[0309] In the above embodiments, the positioning mechanism 140 and the rotating part 202 are built in and can be protected by the decorative cover 130 to prevent them from being damaged.

[0310] In other embodiments, the positioning elastic element 142 may be omitted, and the top block 141 may be directly configured as an elastic component, with one end connected to the decorative cover 130 and the other end elastically abutting against the rotating part 202.

[0311] See Figure 18 , Figure 19 and Figure 21 In some embodiments, the mounting housing 13 (decorative cover 130) has a top block guide groove 1311, and the top block 141 is slidably mounted in the top block guide groove 1311.

[0312] Specifically, the interior of the decorative cover 130 is enclosed by a plate forming a top block guide groove 1311 extending along the telescopic direction of the positioning elastic member 142. When the top block 141 reciprocates due to varying degrees of compression from the rotating part 202, the top block guide groove 1311 guides the stroke of the top block 141, preventing it from shifting position and thus ensuring more stable contact with the rotating part 202. Simultaneously, the groove wall of the top block guide groove 1311 also presses down on the top block 141, restricting its position in a direction perpendicular to the telescopic direction of the positioning elastic member 142.

[0313] See Figures 21 to 23 In some embodiments, the rotating part 202 includes a rotating shaft 203 rotatably connected to the mounting housing 13 (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. During the rotation of the rotating shaft 203, the top block 141 always elastically abuts against the cam 205.

[0314] Specifically, the cam 205 is sleeved on the outside of the rotating shaft 203, and the two are fixedly connected or integrally formed. During the rotation of the rotating shaft 203, the cam 205 rotates synchronously, so that in different states, the two positioning surfaces on the cam 205 face and abut against the top block 141 respectively.

[0315] Furthermore, in some embodiments, the rotating part 202 may include a rotating shaft 203, which engages with the shaft hole of the decorative cover 130 and extends through both ends of the decorative cover 130, respectively connecting to both ends of the gripping part 201. Alternatively, as shown in the embodiment in the accompanying drawings, the rotating part 202 includes two mutually spaced rotating shafts 203, with a cam 205 disposed on one of the longer rotating shafts 203. Both rotating shafts 203 engage with the shaft hole of the decorative cover 130 and extend through both ends of the decorative cover 130, respectively connecting to both ends of the gripping part 201.

[0316] See Figures 21 to 23 In some embodiments, the mounting housing 13 (decorative cover 130) has a rotating groove 1331 inside, and the rotating shaft 203 is engaged in the rotating groove 1331 and can rotate within the rotating groove 1331.

[0317] Specifically, the rotating groove 1331 is an elongated groove that extends along the length of the rotating shaft 203. By providing the rotating groove 1331, the rotating shaft 203 can be limited, making it rotate more stably and less prone to shaking.

[0318] See Figures 20 to 24 Furthermore, in some embodiments, the mounting shell 13 (decorative cover 130) includes a locking body 131 and a fixing plate 132 fixedly connected. The fixing plate 132 is provided with a protrusion 133 protruding toward the inner cavity of the locking body 131. The protrusion 133 has a rotating groove 1331. 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.

[0319] Specifically, the rotating groove 1331 is U-shaped, matching the shape of the rotating shaft 203. For example... Figure 24As shown, the lower end of the rotating shaft 203 is stuck in the rotating groove 1331 and abuts against the groove wall of the rotating groove 1331, while the upper end of the rotating shaft 203 abuts against the inner top wall of the locking body 131, thereby restricting the up and down movement of the rotating shaft 203 and making its rotation process more stable.

[0320] See Figures 21 to 23 In some embodiments, a plurality of protrusions 133 are arranged at intervals along the axial direction of the rotating shaft 203, and a positioning block 204 is provided on the outer peripheral surface of the rotating shaft 203, with the positioning block 204 located between adjacent protrusions 133.

[0321] Specifically, in the embodiment shown in the attached drawings, two protrusions 133 are provided. Different areas on the rotating shaft 203 are respectively engaged with the rotation grooves 1331 provided on the two protrusions 133, thereby enhancing the limiting and making the rotation process of the rotating shaft 203 smoother. The diameter of a part of the outer peripheral surface of the rotating shaft 203 is larger than that of other parts to form an outwardly protruding positioning block 204, and the cam 205 is provided on the positioning block 204. The positioning block 204 is located between adjacent protrusions 133, and the two ends of the positioning block 204 can be axially limited by the adjacent protrusions 133, thereby axially limiting the rotating shaft 203 and making it less prone to large axial movement.

[0322] See Figures 16 to 17 In some embodiments, the mounting shell 13 (decorative cover 130) has a storage groove 1312 on one side edge. In the stored state, the handle 200 is stored in the storage groove 1312 and is flush with the end face of the mounting shell 13 (decorative cover 130).

[0323] In the above embodiment, by setting the storage groove 1312, the flat handle 200 can be stored so that it does not protrude outward, and the shape of the entire filter element is more regular, making it easier to store and install.

[0324] See Figure 1 , Figure 5a , Figure 16 and Figure 18 One embodiment of this application provides a decorative component for a filter element 10, which includes a mounting housing 13, a handle 200, and a positioning mechanism 140. (See also...) Figures 16 to 19 ,as well as Figure 21 The positioning mechanism 140 is connected to the mounting housing 13. The handle 200 is rotatably connected to the mounting housing 13 so that the handle 200 is in a gripping position. Figure 16 As shown), and the storage status ( Figure 17 (As shown). The positioning mechanism 140 can apply an elastic force to the handle 200 so that the handle 200 is held in a gripped state by abutting against the mounting housing 13; the positioning mechanism 140 can also apply an elastic force to the handle 200 so that the handle 200 is held in a stored state by abutting against the mounting housing 13.

[0325] 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 is held 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 is held 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.

[0326] In the decorative parts, the specific connection structure between components such as the mounting shell 13, handle 200, and positioning mechanism 140 has been described in the aforementioned embodiments and will not be repeated here.

[0327] See Figure 5a and Figure 16 An embodiment of this application provides a filter element 10 including a filter element body 100. The filter element body 100 includes a filter component and a mounting housing 13 (decorative cover 130). The filter component has a filter section 110 for filtration. The mounting housing 13 (decorative cover 130) is disposed at one axial end of the filter component, and the mounting housing 13 (decorative cover 130) is connected to the filter component and locked and unlocked by a locking mechanism. See reference. Figure 20 , Figure 25 and Figure 26 The locking mechanism includes a rotating groove 123 and a latch 134. One of the rotating groove 123 and the latch 134 is disposed on the filter element, and the other is disposed on the mounting housing 13 (decorative cover 130). The filter element and the mounting housing 13 (decorative cover 130) are configured to rotate relative to each other, so that the latch 134 is screwed into or out of the rotating groove 123 circumferentially on the filter element. Multiple sets of locking mechanisms are arranged in an array along the circumferential direction of the filter element, and at least two sets of locking mechanisms are arranged in different positions in the radial direction of the filter element.

[0328] In the above embodiment, the filter element and the decorative cover 130 are separately configured. They can be connected and locked by rotating relative to each other, causing the buckle 134 to screw into the rotating groove 123; or by rotating relative to each other in the opposite direction, causing the buckle 134 to disengage from the rotating groove 123, thus unlocking and separating the filter element and the decorative cover 130. Therefore, manufacturers can design and manufacture decorative covers 130 of different colors and shapes individually. Users only need to replace the decorative cover 130 according to their personal preferences to achieve personalization and aesthetics, without needing to replace the entire filter element. This reduces usage costs while satisfying personalization and aesthetic requirements. When the filtration effect is poor, it is not necessary to replace the entire filter element 10; simply separate the filter element and the decorative cover 130, purchase a new filter element, and replace it, thereby reducing usage costs. Furthermore, since multiple locking mechanisms are provided simultaneously, the stability of the connection and locking between the filter element and the decorative cover 130 is improved, making them less prone to loosening and separation. Based on this, at least two sets of locking mechanisms are arranged in different radial positions on the filter component, thus enabling forward and reverse error prevention during installation, preventing incorrect installation direction and ensuring the convenience of the installation process.

[0329] See Figure 20 and Figure 25 The fact that at least two sets of locking mechanisms are arranged differently in the radial direction of the filter element means that the distance between the latches 134 in at least two sets of locking mechanisms and the central axis O of the filter element 10 is different. The distance between the two rotating grooves 123 corresponding to these two sets of latches 134 and the central axis O of the filter element 10 is also different.

[0330] For example, one of the screws 134 is spaced at a distance of r1 from the central axis O of the entire filter element, and the other screw 134 is spaced at a distance of r2 from the central axis O of the filter element. r1 and r2 are not equal.

[0331] See Figure 20 , Figure 25 and Figure 26 In some embodiments, the rotating groove 123 is disposed on the filter element, and the screw fastener 134 is disposed on the decorative cover 130. In other embodiments, the positions of the rotating groove 123 and the screw fastener 134 may be interchanged.

[0332] See Figure 5a and Figure 16 In some embodiments, the filter component includes an end cap 120 fixedly mounted to one end of the filter section 110, and a decorative cover 130 disposed at the end of the end cap 120 opposite to the filter section 110. The decorative cover 130 and the end cap 120 are connected, locked, and unlocked by a locking mechanism. (See also...) Figure 20 , Figure 25 and Figure 26One of the rotating groove 123 and the swivel 134 is disposed on the end cap 120, and the other is disposed on the decorative cover 130. The end cap 120 and the decorative cover 130 are configured to rotate relative to each other so that the swivel 134 is screwed into or out of the rotating groove 123 circumferentially along the filter element.

[0333] See Figure 20 , Figure 25 and Figure 26 In some embodiments, for ease of manufacturing, a rotating groove 123 is provided on the end cap 120, and a swivel 134 is provided on the decorative cover 130.

[0334] Since the end cap 120 is fixed to the filter part 110, when the end cap 120 and the decorative cover 130 rotate relative to each other, the end cap 120 and the decorative cover 130 can be locked or unlocked, thereby connecting or separating the entire filter part and the decorative cover 130.

[0335] In other embodiments, the positions of the rotating groove 123 and the swivel 134 can be interchanged, that is, the rotating groove 123 is provided on the decorative cover 130 and the swivel 134 is provided on the end cover 120.

[0336] See Figure 20 and Figure 25 In some embodiments, at least two sets of locking mechanisms are spaced 180 degrees apart circumferentially along the filter element.

[0337] In the above embodiment, at least two sets of locking mechanisms are arranged at 180-degree intervals along the circumference of the filter component, that is, the two sets of locking mechanisms are respectively located at the two radial ends of the filter component, and the filter component and the decorative cover 130 are locked from the two radial ends respectively, which can further improve the stability during locking.

[0338] Preferably, the two sets of locking mechanisms, spaced 180 degrees apart, are arranged at different positions in the radial direction of the filter element.

[0339] See Figure 20 and Figure 25 In some embodiments, multiple sets of locking mechanisms are arranged at uniform intervals along the circumference of the filter element.

[0340] In the above embodiments, by setting multiple sets of evenly spaced locking mechanisms, the uniformity of the locking mechanism placement can be increased, thereby ensuring that the filter component and the decorative cover 130 circumferentially and in all areas are stably and evenly locked together.

[0341] Preferably, in the multiple locking mechanisms, each locking mechanism is positioned differently in the radial direction of the filter element. This further enhances the accuracy of error prevention.

[0342] In the embodiment shown in the attached figure, two sets of locking mechanisms are provided, spaced 180 degrees apart. In other embodiments, the number of locking mechanisms can be increased, for example, to three, four, or more sets.

[0343] See Figure 20 and Figure 25 In some embodiments, both the rotating groove 123 and the swivel 134 are arc-shaped, extending circumferentially along the filter element.

[0344] In the above embodiment, both the rotating groove 123 and the swivel buckle 134 are set to be arc-shaped, so that their shapes can match the path shape of the filter component and the decorative cover 130 when they rotate relative to each other, making the unlocking and locking operations smoother.

[0345] See Figure 20 and Figure 25 In some embodiments, in two sets of locking mechanisms with different radial positions of the filter element, the inner diameters of the two swivels 134 differ by 1mm-5mm.

[0346] Specifically, such as Figure 20 As shown, the distance between one of the screws 134 and the central axis O of the entire filter element is r1, and the distance between the other screw 134 and the central axis O of the filter element is r2, where 1mm≤r1-r2≤5mm.

[0347] Setting the inner diameter difference of the two swivels 134 to the range described above can satisfy the error prevention requirements while allowing the two sets of locking mechanisms to be distributed as close and concentrated as possible along the radial direction of the filter element, which is beneficial to the miniaturization design of the filter element 10.

[0348] See Figure 20 , Figure 25 and Figure 26 In some embodiments, the size of the rotating groove 123 gradually decreases along the axial direction of the filter element in the screw-in direction of the swivel 134.

[0349] Specifically, the screw-in direction refers to the direction in which the buckle 134 screws into the rotating groove 123. Figure 26 From a viewing angle, the clasp 134 is screwed into the rotating groove 123 from right to left, and in this direction, the vertical dimension of the rotating groove 123 gradually decreases. This arrangement facilitates the initial entry of the clasp 134 into the rotating groove 123, and as the clasp 134 gradually enters the rotating groove 123, it becomes increasingly tighter against the clasp 134, preventing the clasp 134 from reversing and exiting the rotating groove 123 without external force, thereby ensuring the secure locking of the filter component and the decorative cover 130.

[0350] See Figure 20 , Figure 25 and Figure 26In 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.

[0351] 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.

[0352] 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.

[0353] 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.

[0354] 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.

[0355] 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.

[0356] Specifically, both the end cap body 121 and the boss 122 have circular outer contours and are coaxial, with the outer diameter of the boss 122 being smaller than that of the end cap body 121. A portion of the bottom of the boss 122 is recessed upwards, thus forming a rotating groove 123 between the recessed area and the end cap body 121. The entrance side of the rotating groove 123 has a receiving cavity 124 that passes through the boss 122. Therefore, the buckle 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.

[0357] See Figure 20 , Figure 25 and Figure 26 In some embodiments, as described above, the distance between the latches 134 in at least two sets of locking mechanisms and the central axis O of the filter element 10 is different, and the distance between the corresponding at least two receiving cavities 124 and the central axis O of the filter element 10 is different, so that the corresponding latches 134 can enter.

[0358] Specifically, one of the receiving cavities 124 is spaced at a distance of r3 from the central axis O of the entire filter element, and the other receiving cavity 124 is spaced at a distance of r4 from the central axis O of the filter element. r3 and r4 are not equal.

[0359] See Figure 20 , Figure 25 and Figure 26 In some embodiments, both the rotating groove 123 and the receiving cavity 124 are located on the outer edge of the boss 122, so that the outer sides of both the rotating groove 123 and the receiving cavity 124 are open. This facilitates manufacturing and processing, and also makes locking easier.

[0360] In other embodiments, the rotating groove 123 and the receiving cavity 124 may also be disposed in other areas of the boss 122.

[0361] See 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 toward the end cover 120. The decorative cover side plate 136 can be fitted onto the outside of the boss 122, and the inner wall of the decorative cover side plate 136 fits against the outer wall of the boss 122.

[0362] Specifically, as described above, the decorative cover 130 includes a locking body 131, which includes a decorative cover end plate 135 and a decorative cover side plate 136. The outer diameter of the boss 122 is smaller than the outer diameter of the end cover body 121, that is, the outer wall of the boss 122 is located inside the outer wall of the end cover body 121. Therefore, the outer side of the boss 122 can form an annular space to accommodate the decorative cover side plate 136. After the decorative cover side plate 136 is fitted onto the outside of the boss 122, the outer wall of the decorative cover side plate 136 is flush with the outer wall of the end cover body 121.

[0363] When the decorative cover side plate 136 is fitted onto the outside of the boss 122, it is necessary to roughly determine the positions of the buckle 134 and the receiving cavity 124, and align them to ensure that when the decorative cover side plate 136 is fitted onto the outside of the boss 122, the buckle 134 is just inserted into the receiving cavity 124. Then, simply rotate the end cover 120 and the decorative cover 130 relative to each other to screw the buckle 134 into the rotating groove 123.

[0364] In the above embodiment, the inner wall of the decorative cover side plate 136 and the outer wall of the boss 122 are fitted together. Therefore, during the relative rotation of the decorative cover 130 and the end cover 120, the inner wall of the decorative cover side plate 136 and the outer wall of the boss 122 can guide each other, making the relative rotation of the decorative cover 130 and the end cover 120 smoother.

[0365] See Figure 20 , Figure 24 , Figure 25 and Figure 26 In some embodiments, the swivel 134 includes a connecting arm 1341 and a screw-in arm 1342, the connecting arm 1341 extending from the decorative cover end plate 135 toward the end cover 120 side; the screw-in arm 1342 extending from the end of the connecting arm 1341 opposite to the decorative cover end plate 135 toward the connecting arm 1341 side, the screw-in arm 1342 being configured to screw into or out of the rotating groove 123 circumferentially along the filter element.

[0366] Specifically, in Figure 26 From this perspective, the connecting arm 1341 extends from top to bottom, and the screw-in arm 1342 is arc-shaped and extends from the bottom end of the connecting arm 1341 to its left. After the screw-in arm 1342 is screwed into the rotating groove 123 to a certain extent, the connecting arm 1341 will be blocked by the side wall of the receiving cavity 124 on the boss 122. At this time, the end cover 120 and the decorative cover 130 will no longer be able to rotate relative to each other, indicating that they have been locked in place.

[0367] See 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.

[0368] 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.

[0369] See Figure 25 ,as well as Figures 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.

[0370] 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.

[0371] See Figure 5a , Figure 25 and Figure 29In some embodiments, the filter component includes a filter section 110 for filtering and an end cap 120 fixedly installed at one end of the filter section 110. A decorative cover 130 is disposed at the end of the end cap 120 away from the filter section 110, and a stop hole 1221 is disposed on the end cap 120.

[0372] The structure of the filter part 110 and the end cap 120 in the filter component is basically the same as that in the previous embodiment. For details, please refer to the previous embodiments. The difference between this embodiment and the previous embodiments is that a stop hole 1221 is added to the end cap 120.

[0373] Specifically, the stop hole 1221 is provided on the boss 122 of the end cover 120 and is formed by recessing from the end face of the boss 122 away from the end cover body 121.

[0374] See Figure 5a , Figure 25 and Figure 29 In some embodiments, multiple sets of stop members 151 and multiple sets of stop holes 1221 are arranged in pairs.

[0375] In the gripped position, each stop member 151 is inserted into its corresponding stop hole 1221, thereby restricting the rotation of the decorative cover 130 relative to the filter component through multiple sets of interlocking stop members 151 and stop holes 1221. This improves the reliability of the stop.

[0376] In some embodiments, the stop member 151 and the stop hole 1221 have circular cross-sectional shapes, and the position of the stop hole 1221 on the filter member is offset from the rotation center of the filter member and the decorative cover 130 relative to each other.

[0377] Specifically, the position of the stop hole 1221 on the filter element is offset from the rotation center of the filter element and the decorative cover 130 relative to each other, that is, offset from the central axis of the filter element 10. In this way, the rotation of the decorative cover 130 relative to the filter element can be restricted by the insertion of the stop member 151 into the stop hole 1221, thereby preventing the decorative cover 130 from falling off the filter element.

[0378] Alternatively, in some embodiments, the cross-sectional shape of the stop member 151 and the stop hole 1221 is polygonal, elliptical, semi-circular, or mostly semi-circular. In this way, it is not necessary to restrict the position of the stop hole 1221 on the filter element, and it is still possible to suppress the rotation of the decorative cover 130 relative to the filter element.

[0379] See Figures 29 to 31 In some embodiments, when the handle 200 switches from the retracted state to the gripping state, the stop member 151 moves along the axial direction of the filter element towards the filter component via the handle 200 and is inserted into the filter component; when the handle 200 switches from the gripping state to the retracted state, the stop member 151 and the filter component separate.

[0380] Specifically, when the handle 200 switches from the retracted state to the gripping state, the stop member 151 moves along the axial direction of the filter element towards the end cap 120 via the handle 200 and inserts into the stop hole 1221. When the handle 200 switches from the gripping state to the retracted state, the stop member 151 retracts from the stop hole 1221. When the handle 200 switches from the retracted state to the gripping state, as the handle 200 rotates, it will push the stop member 151 to move and insert into the stop hole 1221, thereby restricting the rotation of the decorative cover 130 when the handle 200 reaches the gripping state. In this way, there is no need to set up an additional structure to link the handle 200 and the stop member 151, making the entire structure simpler.

[0381] See Figures 27 to 28 As previously described, the handle 200 has a gripping portion 201 and a rotating portion 202 connected together, the rotating portion 202 including a pivot 203 rotatably connected to the decorative cover 130. Further, see [link to relevant documentation]. Figures 28 to 31 In some embodiments, a pusher 2031 is provided on the outer peripheral surface of the rotating shaft 203. When the handle 200 switches from the stored state to the gripping state, the pusher 2031 pushes the stop member 151 to move along the axial direction of the filter element toward the filter component and inserts it into the filter component.

[0382] Specifically, the pusher 2031 includes a pusher body 20311 sleeved outside the pivot 203, and a pusher portion 20312 connected to the pusher body 20311. The handle 200 switches its state by rotating the pivot 203. When the pivot 203 rotates, the pusher portion 20312 rotates synchronously, thereby changing its orientation. When the pivot 203 rotates to switch the handle 200 to the gripping state, the pusher portion 20312 will gradually align with the stop member 151 (pushing portion 20312 facing downwards), pushing the stop member 151 to move and insert into the stop hole 1221. When the pivot 203 rotates to switch the handle 200 to the storage state, the pusher portion 20312 changes to a horizontal orientation, separates from the stop member 151, and the stop member 151 exits the stop hole 1221.

[0383] See Figures 28 to 31 In some embodiments, the stop member 151 is elastically connected to the decorative cover 130. When the handle 200 is switched to the gripping state, the stop member 151 extends toward the filter component against the elastic force; when the handle 200 is switched to the storage state, the stop member 151 is driven by the elastic force to retract.

[0384] Specifically, when the handle 200 is switched to the gripping state, the pushing part 20312 pushes the stop member 151 to move and insert into the stop hole 1221. During this process, it is necessary to overcome the elastic force. When the handle 200 is switched to the storage state, after the pushing part 20312 separates from the stop member 151, the stop member 151 will automatically reset and exit the stop hole 1221 under the action of the elastic force.

[0385] In other embodiments, when the handle 200 is switched to the storage state, other structures may be provided to drive the stop member 151 to move in the opposite direction and exit the stop hole 1221.

[0386] See Figures 28 to 31 In some embodiments, the filter body 100 includes a stop elastic member 152 sleeved on the outside of the stop member 151, with the two ends of the stop elastic member 152 abutting against the stop member 151 and the decorative cover 130, respectively.

[0387] Specifically, when the handle 200 is switched to the gripping state, the pushing part 20312 pushes the stop member 151 to move and compresses 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 its rebound force, the stop member 151 will automatically reset and exit the stop hole 1221.

[0388] See Figures 28 to 31 In some embodiments, the decorative cover 130 has a stop member mounting hole 1321; in the gripped state, the stop member 151 extends out of the stop member mounting hole 1321; in the retracted state, the length of the extended portion of the stop member 151 is less than the length of the extended portion when it is in the gripped state, and preferably, the stop member 151 retracts into the stop member mounting hole 1321.

[0389] Specifically, the stop elastic member 152, which is sleeved on the outside of the stop member 151, is also located inside the stop member mounting hole 1321 and is restricted to extending and retracting only within the stop member mounting hole 1321. In the gripping state, the bottom end of the stop member 151 extends downward out of the stop member mounting hole 1321 and is inserted into the stop hole 1221; in the retracted state, the bottom end of the stop member 151 retracts upward into the stop member mounting hole 1321. By providing the stop member mounting hole 1321, the guidance and limitation of the movement of the stop member 151 can be increased, making its movement more stable.

[0390] See Figures 28 to 31In some embodiments, the wall of the stop mounting hole 1321 is provided with two first stop bosses 13211 arranged at intervals along the axial direction of the filter element. The stop member 151 includes a stop member body 1511 and a second stop boss 1512 protruding from the outer wall of the stop member body 1511. The two first stop bosses 13211 are used to block the second stop boss 1512 to limit the movement stroke of the stop member 151.

[0391] Specifically, the main body 1511 of the stop member is cylindrical, and the second stop boss 1512 protrudes outward from the outer peripheral surface of the main body 1511. Two first stop bosses 13211 protrude from the upper and lower regions of the hole wall of the stop member mounting hole 1321, respectively. In the gripped state, when the stop member 151 extends downward, the lower first stop boss 13211 will block the second stop boss 1512, thereby limiting the lower stroke endpoint of the stop member 151; in the retracted state, when the stop member 151 retracts upward, the upper first stop boss 13211 will block the second stop boss 1512, thereby limiting the upper stroke endpoint of the stop member 151.

[0392] The upper end of the aforementioned stop elastic member 152 elastically abuts against the second stop boss 1512, and the lower end elastically abuts against the lower end first stop boss 13211, thereby providing the aforementioned elastic force.

[0393] See Figure 20 , Figure 25 and Figure 26 In some embodiments, the decorative cover 130 is connected to the filter element by a locking mechanism for locking and unlocking. The locking mechanism includes a rotating groove 123 and a snap fastener 134, one of which is disposed on the filter element and the other on the decorative cover 130. The filter element and the decorative cover 130 are configured to rotate relative to each other so that the snap fastener 134 is screwed into or out of the rotating groove 123 along the circumference of the filter element.

[0394] In this embodiment, the specific arrangement of the rotating groove 123 and the latch 134 can refer to the aforementioned embodiment. In this embodiment, multiple sets of locking mechanisms can be provided as in the aforementioned embodiment, with the multiple sets of locking mechanisms arranged in a circumferential array along the filter component, and at least two sets of locking mechanisms having different radial positions on the filter component. Alternatively, in this embodiment, only one set of locking mechanisms can be provided, or although multiple sets of locking mechanisms are provided, there is no requirement that "at least two sets of locking mechanisms have different radial positions on the filter component".

[0395] See Figure 20 , Figure 32 and Figure 33In some embodiments, a first protrusion 1231 protrudes into the groove wall of the rotating groove 123, and a second protrusion 1344 protrudes from the buckle 134. After the buckle 134 is screwed into the rotating groove 123, the second protrusion 1344 is located on the side of the first protrusion 1231 away from the entrance of the rotating groove 123, and the end of the first protrusion 1231 away from the entrance of the rotating groove 123 abuts against the end of the second protrusion 1344 near the entrance of the rotating groove 123.

[0396] exist Figure 33 From the viewing angle, when the clasp 134 rotates to the left, it screws into the rotating groove 123; when the clasp 134 rotates to the right, it exits the rotating groove 123. When the clasp 134 is screwed into the rotating groove 123 to the left, the second protrusion 1344 is located to the left of the first protrusion 1231, and the left end of the first protrusion 1231 abuts against the right end of the second protrusion 1344. In this way, after the clasp 134 is screwed into the rotating groove 123, the first protrusion 1231 blocks the second protrusion 1344, preventing the clasp 134 from easily rotating in the opposite direction and exiting the rotating groove 123, thus enhancing the rotation restriction on the decorative cover 130. Of course, it should be noted that when it is necessary to release the rotation restriction on the decorative cover 130, even if the decorative cover 130 is rotated in the opposite direction with a larger rotational force, the clasp 134 can still exit the rotating groove 123.

[0397] See Figure 20 , Figure 32 and Figure 33 In some embodiments, the end of the first protrusion 1231 facing away from the inlet of the rotating groove 123 is a first stop surface 12311 that is inclined relative to the filter element axially, and the end of the second protrusion 1344 near the inlet of the rotating groove 123 is a second stop surface 13441 that is inclined relative to the filter element axially, with the first stop surface 12311 parallel to the second stop surface 13441.

[0398] exist Figure 33 From this perspective, the first stop surface 12311 is the left end face of the first protrusion 1231, and the second stop surface 13441 is the right end face of the second protrusion 1344. The first stop surface 12311 and the second stop surface 13441 have the same inclination angle so that they are parallel to each other. In this way, when the first stop surface 12311 abuts against the second stop surface 13441, there can be a larger contact area and a better stopping effect. Furthermore, when it is necessary to release the rotation restriction on the decorative cover 130, as long as the decorative cover 130 is rotated in the opposite direction with a larger rotational force, the clasp 134 can be more easily disengaged from the rotating groove 123 with the cooperation of the two inclined surfaces.

[0399] See Figure 33 Preferably, in some embodiments, the inclination of the first guide slope 1343 is greater than the inclination of the second stop surface 13441.

[0400] See Figure 20 , Figure 32 and Figure 33 In some embodiments, two sets of locking mechanisms are arranged 180 degrees apart along the circumference of the filter component. Among the two sets of locking mechanisms, at least the set of screws 134 and rotating grooves 123 with larger radial dimensions are respectively provided with a second protrusion 1344 and a first protrusion 1231.

[0401] Understandably, when the clasp 134 screws into and out of the rotating groove 123, the second protrusion 1344 and the first protrusion 1231 will press against each other, causing the first protrusion 1231 to tend to rotate upwards and the second protrusion 1344 to tend to rotate downwards. By choosing to position the second protrusion 1344 and the first protrusion 123 on a set of clasps 134 and rotating grooves 123 with a larger radial dimension, the clasps 134 and rotating grooves 123 are less likely to break due to excessive compression deformation during the mutual pressing process, resulting in higher overall strength. Of course, in other embodiments, the second protrusion 1344 and the first protrusion 1231 can also be correspondingly positioned on both sets of clasps 134 and rotating grooves 123.

[0402] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0403] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A water purifier characterized by comprising: The filter cartridge (10) is inserted into the accommodating cavity (21) through an opening of the accommodating cavity (21) and is pulled out of the accommodating cavity (21) through the opening. The pull ring (510) is connected to an inner wall of the accommodating cavity (21), and an insertion direction end of the filter cartridge (10) can be inserted into the pull ring (510). One side of the pull ring (510) facing the insertion direction end of the filter cartridge (10) is provided with a guide slope (5101) inclined to the radial outside of the pull ring (510) to guide the insertion of the insertion direction end of the filter cartridge (10). The pull ring (510) is configured to be movable along the insertion direction of the filter cartridge (10) so as to be driven by the insertion operation of the filter cartridge (10) and move a certain distance along the insertion direction. The insertion direction end of the filter cartridge (10) is configured as a reduced diameter end (101) to form a shoulder structure (1011) on the filter cartridge (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 (101). The shoulder structure (1011) is used to drive the pull ring (510) to move in the insertion direction in the accommodating cavity (21) when the pull ring (510) is contacted during the insertion of the filter cartridge (10).

2. The water purifier according to claim 1, characterized in that, The pull ring (510) further comprises a circumferential matching surface (5100) connected to the guide slope (5101), and the guide slope (5101) and the circumferential matching surface (5100) jointly define the surface of the inner circumferential side of the pull ring (510). The end surface of the shoulder structure (1011) facing the guide slope (5101) is configured as a slope capable of being in contact with the guide slope (5101), and the circumferential matching surface (5100) is in contact with the outer circumferential surface of the reduced diameter end (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), and the inner wall (512) is arranged at the radial inner side of the outer wall (514); the radial two side ends of the guide wall (513) are respectively connected to the axial same side ends 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 slope (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 of the pull ring (510) is provided with a guide lug (511).

5. The water purifier according to claim 4, wherein 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 guide groove (213) are guided and matched along the insertion direction.

6. The water purifier according to claim 2, wherein The guide groove (213) comprises two first limiting walls (2131) oppositely arranged along the insertion direction. ​ ​ 7. The water purifier according to claim 6, wherein A second elastic member (53) is arranged between the pull ring (510) and the bottom wall of the accommodating cavity (21), and is used to always apply an elastic force to the pull ring (510) away from the bottom wall of the accommodating cavity (21).

8. The water purifier according to claim 7, characterized in that An elastic member positioning seat (54) is further arranged on the bottom wall of the accommodating cavity (21), and two ends of the second elastic member (53) are respectively connected to the elastic member positioning seat (54) and the guide lug (511).

9. The water purifier according to claim 6, 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 in the blocking position, a 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 in the unlocking position, the stop portion of the lock catch (31) is away from the pull-out path relative to the position in 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.

10. The water purifier according to claim 9, wherein A second elastic member (53) is arranged between the pull ring (510) and the bottom wall of the accommodating cavity (21), and is used to always apply an elastic force to the pull ring (510) away from the bottom wall of the accommodating cavity (21). Preferably, 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; A protruding portion (310) is arranged on one side of the lock catch (31) facing the filter element (10); When the lock catch (31) is in the blocking position, the protruding portion (310) is arranged on the pull-out path; when the lock catch (31) is in the unlocking position, the protruding portion (310) is away from the pull-out path relative to the position in the blocking position. Preferably, a pull rod (52) is further arranged on the pull ring (510), 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 in the unlocking position, the pull rod (52) abuts against the lock catch (31) to keep the lock catch (31) in the unlocking position. Preferably, the number of filter elements (10) and pull rings (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 core frame (221), the second filter core frame (222) and the third filter core frame (223) are sequentially connected end to end, and the inner contour shapes of the first filter core frame (221), the second filter core frame (222) and the third filter core frame (223) respectively match the partial circumferential outer contour shapes of the three filter cores (10), so that the first filter core frame (221), the second filter core frame (222) and the third filter core frame (223) respectively define three accommodation cavities (21) which communicate with each other with the bottom plate (224); Three pull rings (510) are respectively arranged on the inner walls of the first filter core frame (221), the second filter core frame (222) and the third filter core frame (223). Preferably, the first filter core frame (221) surrounds more than half of the circumferential region outside the first filter core (11); the second filter core frame (222) surrounds more than half of the circumferential region outside the second filter core (12); and the third filter core frame (223) surrounds more than half of the circumferential region outside the third filter core (103). Preferably, 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). Preferably, the length dimension of the reduced diameter end portion (101) along the insertion direction is smaller than the length of the second cavity section (2102). Preferably, the central axis of the pull ring (510) coincides with the central axis of the corresponding accommodation cavity (21). Preferably, the number of the filter cores (10) is three, and the three filter cores (10) are respectively defined as a first filter core (11), a second filter core (12) and a third filter core (103); the first filter core (11), the second filter core (12) and the third filter core (103) are sequentially connected and are all cylindrical in structure; the diameter of the second filter core (12) is greater than or equal to the diameters of the first filter core (11) and the third filter core (103); The first filter core (11) and the third filter core (103) are sequentially and spaced arranged along the left-right direction; and the second filter core (12) is located on the upper side of the first filter core (11) and the third filter core (103); In the up-down direction, the lowermost point (D1) of the second filter core is arranged on the lower side compared with the uppermost point (C1) of the first filter core and the uppermost point (E1) of the third filter core, and is arranged on the upper side compared with the axis (O1) of the first filter core and the axis (O3) of the third filter core; In the left-right direction, the leftmost point (D2) of the second filter element is leftward relative to the axis (O1) of the first filter element, and the rightmost point of the first filter element (11) is rightward relative to 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. Preferably, 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. Preferably, 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). Preferably, 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 of the three accommodation cavities (21) close to each other are communicated with each other. Preferably, 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 in communication with the hot water container (5), and the booster pump (7) being in communication 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). Preferably, the end of the filter element (10) along the self-insertion direction and the corresponding position of the accommodation cavity (21) are respectively provided with a first matching valve (2241) and a second matching valve (2240) capable of being inserted and matched with each other. Preferably, the filter element (10) comprises a filter element body (100), the filter element body (100) comprises: a filter part having a filter (110) for filtering; and a decorative cover (130) arranged at one axial end of the filter part, the decorative cover (130) and the filter part are connected and locked or unlocked and separated 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 part, and the other is arranged on the decorative cover (130), 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. Preferably, the rotating buckles (134) in at least two sets of the locking mechanism are different in distance from the central axis of the filter element. Preferably, at least two groups of the locking mechanisms are spaced 180 degrees along the circumference of the filtering component. Preferably, the filter element (10) comprises a filter element body (100), the filter element body (100) comprising a mounting shell (13); The filter element (10) further comprises a positioning mechanism (140) connected to the mounting shell (13); The water purifier (1000) further comprises a handle (200) 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) 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 storage state by abutting against the mounting shell (13). Preferably, the handle (200) has a first positioning surface (206) and a second positioning surface (207); when the handle (200) is rotated to the first positioning surface (206) facing the positioning mechanism (140), the positioning mechanism (140) can exert an elastic force on the first positioning surface (206) to make the handle (200) abut against the mounting shell (13); when the handle (200) is rotated to the second positioning surface (207) facing the positioning mechanism (140), the positioning mechanism (140) can exert an elastic force on the second positioning surface (207) to make the handle (200) abut against the mounting shell (13). Preferably, 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) 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); 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). Preferably, the filter element (10) comprises a filter element body (100), the filter element body (100) comprising a filtering component, a decorative cover (130), and a stopper (151) connected to the decorative cover (130), the decorative cover (130) being arranged at one axial end of the filtering component, the decorative cover (130) being configured to rotate relative to the filtering component around the axial direction of the filter element to be connected and locked or unlocked and separated from the filtering component; The water purifier (1000) further comprises a handle (200) rotationally connected to the decorative cover (130) so that the handle (200) has a holding state and a storage state; Preferably, the handle (200) has a first positioning surface (206) and a second positioning surface (207); when the handle (200) is rotated to the first positioning surface (206) facing the positioning mechanism (140), the positioning mechanism (140) can exert an elastic force on the first positioning surface (206) to make the handle (200) abut against the mounting shell (13); when the handle (200) is rotated to the second positioning surface (207) facing the positioning mechanism (140), the positioning mechanism (140) can exert an elastic force on the second positioning surface (207) to make the handle (200) abut against the mounting shell (13). Preferably, 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) 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); 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). Preferably, the filter element (10) comprises a filter element body (100), the filter element body (100) comprising a filtering component, a decorative cover (130), and a stopper (151) connected to the decorative cover (130), the decorative cover (130) being arranged at one axial end of the filtering component, the decorative cover (130) being configured to rotate relative to the filtering component around the axial direction of the filter element to be connected and locked or unlocked and separated from the filtering component; The water purifier (1000) further comprises a handle (200) 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 member (151) is inserted into the filter component along the axial direction of the filter core to prevent relative rotation between the filter component and the decorative cover (130). Preferably, the filter component has a stop hole (1221), and in the holding state, the stop member (151) is inserted into the stop hole (1221); in the storage state, the stop member (151) is withdrawn from the stop hole (1221). Preferably, a plurality of sets of the stop member (151) and a plurality of sets of the stop hole (1221) are arranged in pairs. Preferably, 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), and 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). Preferably, the cross-sectional shape of the stop member (151) and the stop hole (1221) is circular, and the position of the stop hole (1221) on the filter component is offset from the rotation center of the relative rotation between the filter component and the decorative cover (130). Alternatively, the cross-sectional shape of the stop member (151) and the stop hole (1221) is polygonal, oval, semicircular, or multi-semicircular. Preferably, when the handle (200) is switched from the storage state to the holding state, the stop member (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 member (151) is separated from the filter component. Preferably, the stop member (151) is elastically connected to the decorative cover (130), and when the handle (200) is switched to the holding state, the stop member (151) extends towards the filter component against the elastic force; when the handle (200) is switched to the storage state, the stop member (151) is driven to retract by the elastic force. Preferably, the filter core body (100) comprises a stop elastic member (152) sleeved outside the stop member (151), and both ends of the stop elastic member (152) abut against the stop member (151) and the decorative cover (130) respectively. Preferably, the decorative cover (130) has a stop member mounting hole (1321), and in the holding state, the stop member (151) partially extends out of the stop member mounting hole (1321); in the storage state, the stop member (151) is retracted into the stop member mounting hole (1321). Preferably, the hole wall of the stop member mounting hole (1321) is provided with two first stop protrusions (13211) arranged along the axial direction of the filter element, the stop member (151) comprises a stop member body (1511), and a second stop protrusion (1512) is provided on the outer wall of the stop member body (1511), and the two first stop protrusions (13211) are used to block the second stop protrusion (1512) to limit the movement stroke of the stop member (151).

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