Filter element assembly and water heater assembly with same

Abstract

The filter element assembly comprises a connecting base, a filter element and an ejector rod, a water inlet connector and a water outlet connector are formed in the connecting base, the connecting base and the filter element are rotationally clamped and matched, the filter element comprises a shell, a water sealing structure and a filter material box, and the water sealing structure and the filter material box are arranged in the shell. A water inlet suitable for being communicated with the water inlet connector and a water outlet suitable for being communicated with the water outlet connector are formed in the shell, the filter material box is used for containing slow-release filter materials, a limiting hole opposite to the water sealing structure is formed in the shell, the ejector rod is suitable for being arranged in the limiting hole in a penetrating mode, and when the filter element and the connecting base are assembled, the connecting base drives the ejector rod to push the water sealing structure to open the water inlet. After the filter element is separated from the connecting seat, the water sealing structure closes the water inlet. According to the filter element assembly disclosed by the invention, after the filter element is separated from the connecting seat, the water sealing structure closes the water inlet, so that stored water in the shell can be well prevented from being spilled out through the water inlet, the trouble caused by the spilled water to a user can be well avoided, and the use experience of the filter element assembly is favorably improved.

Description

Technical Field

[0001] The invention relates to the technical field of filter components, and in particular to a filter element component and a water heater component having the same. Background Art

[0002] As people's living standards improve, their pursuit of quality of life also increases. For example, more and more consumers begin to pay attention to water quality. In the related technology, filter elements are usually used to optimize water quality, and the filter elements are usually replaceable to ensure the purification effect of the filter elements. However, when the filter elements in the related technology are replaced, the residual liquid in the filter element will be spilled, which increases the trouble of cleaning for users and affects the user experience. Summary of the invention

[0003] The present invention provides a filter element assembly, which has the advantage of preventing water stored in the filter element from spilling out when the filter element is separated from a socket.

[0004] The invention also provides a water heater assembly having the filter element assembly.

[0005] According to the filter element assembly of the embodiment of the present invention, it includes: a socket, which is formed with a water inlet interface and a water outlet interface; a filter element, which is detachably arranged on the socket, and the socket is rotatably engaged with the filter element, and the filter element includes: a shell and a water sealing structure and a filter material box arranged in the shell, a water inlet and a water outlet are formed on the shell, the water inlet is suitable for communicating with the water inlet interface, and the water outlet is suitable for communicating with the water outlet interface, and the filter material box is used for holding slow-release filter material; a push rod, a limiting hole opposite to the water sealing structure is formed on the shell, and the push rod is suitable for passing through the limiting hole, when the filter element is assembled with the socket, the socket drives the push rod to push the water sealing structure to open the water inlet, and after the filter element is separated from the socket, the water sealing structure closes the water inlet.

[0006] According to the filter element assembly of the embodiment of the present invention, when the filter element and the socket are assembled, the socket drives the push rod to push the water sealing structure to open the water inlet, so that a connected water purification channel is formed in the filter element assembly, so that the water flowing through the filter element assembly can be better purified, and the user's water use comfort can be better improved through the slow-release filter material; after the filter element is separated from the socket, the water sealing structure closes the water inlet, which can better prevent the stored water in the shell from spilling out through the water inlet, thereby better avoiding the trouble caused by the spilled water to the user, which is beneficial to improving the user experience of the filter element assembly.

[0007] According to some embodiments of the present invention, when the filter element is rotated relative to the socket for assembly, the length of the push rod extending into the housing gradually increases.

[0008] According to some embodiments of the present invention, the push rod is disposed on the socket, and when the filter element is assembled with the socket, the socket pushes the water sealing structure toward one end of the water sealing structure through the push rod to move and open the water inlet.

[0009] According to some embodiments of the present invention, the receiving seat and the ejector rod are integrally formed.

[0010] According to some embodiments of the present invention, part of the water inlet constitutes the limiting hole.

[0011] According to some embodiments of the present invention, the push rod is movably arranged in the limiting hole along the axial direction of the filter element, and one end of the push rod away from the water sealing structure extends out of the shell. When the filter element is assembled with the socket, the socket drives the water sealing structure to move and open the water inlet by pushing the extended end of the push rod.

[0012] According to some embodiments of the present invention, the limiting hole and the water inlet are both provided on an end surface of the shell facing the receiving seat, and the limiting hole and the water inlet are spaced apart.

[0013] According to some embodiments of the present invention, the water inlet and the limiting hole are both provided in plurality, and the water inlet and the limiting holes are arranged alternately and at intervals along the outer circumference of the water outlet.

[0014] According to some embodiments of the present invention, the push rod includes a limiting portion and a matching portion, the limiting portion is arranged at one end of the matching portion facing the water sealing structure, the matching portion is movably arranged in the limiting hole along the axial direction of the filter element, and the size of the limiting portion is larger than the size of the limiting hole at the smallest point.

[0015] According to some embodiments of the present invention, the limiting hole includes a first limiting section and a second limiting section that are connected, the first limiting section is located at one end of the second limiting section facing the water sealing structure, the inner diameter of the first limiting section is larger than the inner diameter of the second limiting section and is used to accommodate the limiting part, the diameter of the limiting part is larger than the inner diameter of the second limiting section, and the matching part is penetrated into the second limiting section.

[0016] According to some embodiments of the present invention, a plurality of the push rods are provided, and the plurality of the push rods are evenly spaced apart along the circumference of the filter element.

[0017] According to some embodiments of the present invention, the water sealing structure includes: a water stop pad, which is arranged opposite to the water inlet along the axial direction of the filter element; and a water stop spring, which is connected to the water stop pad, and after the filter element is separated from the seat, the water stop spring is used to push the water stop pad to close the water inlet.

[0018] According to some embodiments of the present invention, the diameter of the water-stop spring increases in a direction away from the water-stop pad.

[0019] According to some embodiments of the present invention, a limiting groove is formed on the end surface of the water stop pad facing the limiting hole, and one end of the push rod facing the water stop pad is suitable for extending into the limiting groove.

[0020] According to some embodiments of the present invention, a positioning groove is formed on the end surface of the water-stop pad facing the water-stop spring, the positioning groove is annular, and one end of the water-stop spring facing the water-stop pad is inserted into the positioning groove.

[0021] According to some embodiments of the present invention, the water-stop spring includes a spring main body and a first matching portion, wherein the first matching portion is connected to one end of the spring main body facing the water-stop pad, and the diameter of the first matching portion remains unchanged in the extension direction of the water-stop spring. The first matching portion is inserted into the positioning groove, and the diameter of the spring main body gradually increases in the direction away from the water-stop pad.

[0022] According to some embodiments of the present invention, the water sealing structure further includes: a spring support member, which is arranged on the shell and located on the side of the water stop pad away from the water inlet, and the axial ends of the water stop spring are respectively connected to the water stop pad and the spring support member.

[0023] According to some embodiments of the present invention, a plurality of limiting ribs arranged at intervals along the outer circumference of the water-stop spring are formed on the end surface of the spring support member facing the water-stop pad, and the limiting ribs abut against the outer circumferential wall of one end of the water-stop spring facing the spring support member.

[0024] According to some embodiments of the present invention, the water-stop spring includes a spring main body and a second matching portion, wherein the second matching portion is connected to one end of the spring main body facing the spring support member, and in the extension direction of the water-stop spring, the diameter of the second matching portion remains unchanged, and the plurality of limiting ribs are located on the outer peripheral side of the second matching portion and abut against the outer peripheral wall of the second matching portion, and the diameter of the spring main body gradually increases in the direction toward the spring support member.

[0025] According to some embodiments of the present invention, the filter material box is arranged on a side of the spring support member facing away from the water-stop pad, and the spring support member is supported on the filter material box.

[0026] According to some embodiments of the present invention, a receiving cavity for holding slow-release filter material is formed in the filter material box, and a slow-release hole is formed on the filter material box, and water is suitable for flowing into or out of the receiving cavity through the slow-release hole.

[0027] According to some embodiments of the present invention, the shell includes a water outlet column extending axially along the filter element, a water outlet channel connected to the water outlet interface is formed in the water outlet column, a water inlet channel located on the outer peripheral side of the water outlet column is also formed in the shell, the water sealing structure is arranged in the water inlet channel, the filter material box is located at one end of the water outlet column away from the socket, the water outlet column and the filter material box define a dissolution mixing chamber, the dissolution mixing chamber is connected to the water inlet channel and the water outlet channel, and the slow release hole is formed on the side wall of the filter material box facing the dissolution mixing chamber.

[0028] According to some embodiments of the present invention, a fixing structure is provided in the shell, and the fixing structure includes a plurality of fixing ribs, and the plurality of fixing ribs are arranged at intervals along the circumference of the filter box and abut against the outer peripheral wall of the filter box.

[0029] According to some embodiments of the present invention, a guide structure is provided on at least one of the outer peripheral wall of the filter box and the fixing rib.

[0030] According to some embodiments of the present invention, a water inlet hole and a water outlet hole are further formed in the socket, the water inlet hole is suitable for connecting the water inlet interface and the water inlet, and the water outlet hole is suitable for connecting the water outlet interface and the water outlet, and a valve assembly is provided in the socket, and the valve assembly has a conducting state and a shut-off state; wherein, after the filter element is assembled with the socket, the valve assembly is in the conducting state, the water inlet hole is connected with the water inlet interface, and the water outlet hole is connected with the water outlet interface; after the filter element is separated from the socket, the valve assembly is in the shut-off state, the water inlet hole is separated from the water inlet interface, and the water outlet hole is separated from the water outlet interface.

[0031] According to some embodiments of the present invention, in the on state, the water inlet interface is isolated from the water outlet interface; in the off state, the water inlet interface is connected to the water outlet interface.

[0032] According to some embodiments of the present invention, a sliding rib is provided on one of the inner circumferential wall of the socket and the outer circumferential wall of the shell, and a sliding groove is provided on the other of the inner circumferential wall of the socket and the outer circumferential wall of the shell, and the sliding rib and the sliding groove are engaged through relative rotation of the socket and the filter element.

[0033] The water heater assembly according to the embodiment of the present invention comprises: a water heater and the above-mentioned filter element assembly, wherein the filter element assembly is connected to the water heater, and the filter element assembly is used for processing water flow.

[0034] According to the water heater assembly of the embodiment of the present invention, when the filter element and the socket are assembled, the socket drives the push rod to push the water sealing structure to open the water inlet, so that a connected water purification channel is formed in the filter element assembly, so that the water flowing through the filter element assembly can be better purified, and the user's water use comfort can be better improved through the slow-release filter material; after the filter element is separated from the socket, the water sealing structure closes the water inlet, which can better prevent the stored water in the shell from spilling out through the water inlet, thereby better avoiding the trouble caused by the spilled water to the user, which is beneficial to improving the user experience of the filter element assembly.

[0035] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of a filter element and a receiving seat of a filter element assembly according to an embodiment of the present invention when the filter element is separated;

[0037] Figure 2 is a schematic diagram of a filter element and a receiving seat of a filter element assembly according to the first embodiment of the present invention when the filter element is separated;

[0038] Figure 3 is an exploded cross-sectional view of a filter element assembly according to Embodiment 1 of the present invention;

[0039] Figure 4 is a cross-sectional view of the filter element and the receiving seat of the filter element assembly according to the first embodiment of the present invention when the filter element is separated;

[0040] Figure 5 yes Figure 4 A magnified image of area A;

[0041] Figure 6 is a cross-sectional view of the filter element and the socket of the filter element assembly according to the first embodiment of the present invention during assembly;

[0042] Figure 7 is a cross-sectional view of the filter element and the socket of the filter element assembly according to the first embodiment of the present invention after being assembled;

[0043] Figure 8 is a cross-sectional view of a filter element shell body and a cover body of a filter element assembly according to Embodiment 1 of the present invention when the shell body and the cover body are separated;

[0044] Fig. 9 is a top view of a filter element of a filter element assembly according to Embodiment 1 of the present invention;

[0045] Fig.10 is a bottom side view of a socket of a filter element assembly according to the first embodiment of the present invention;

[0046] Fig.11is a bottom side view of a water stop pad of a filter element assembly according to an embodiment of the present invention;

[0047] Fig.12 is a top view of a water stop pad of a filter element assembly according to an embodiment of the present invention;

[0048] Fig.13 is a schematic diagram of a water stop spring of a filter element assembly according to an embodiment of the present invention;

[0049] Fig.14 is a front view of a water stop spring of a filter element assembly according to an embodiment of the present invention;

[0050] Fig.15 is a schematic diagram of a spring support member of a filter element assembly according to an embodiment of the present invention;

[0051] Fig.16 is a top view of a spring support member of a filter element assembly according to an embodiment of the present invention;

[0052] Fig.17 is a schematic diagram of a filter material box when a box cover and a box body of a filter element assembly according to an embodiment of the present invention are separated;

[0053] Fig.18 is a cross-sectional view of a filter material box of a filter element assembly according to an embodiment of the present invention when a box cover is separated from a box body;

[0054] Fig.19 is a schematic diagram of a shell body of a filter element assembly according to an embodiment of the present invention;

[0055] Fig. 20 is a top view of a shell body of a filter element assembly according to an embodiment of the present invention;

[0056] Fig.21 is a schematic diagram of a filter element and a receiving seat of a filter element assembly according to a second embodiment of the present invention when the filter element is separated;

[0057] Fig. 22 is a partial cross-sectional view of the filter element and the socket of the filter element assembly according to the second embodiment of the present invention after being assembled;

[0058] Fig.23 is a cross-sectional view of a connector of a filter element assembly according to a second embodiment of the present invention;

[0059] Fig.24 Schematic diagram of the internal water path of the socket of the filter element assembly according to an embodiment of the present invention;

[0060] Fig.25 is a schematic diagram of a first stop valve (second stop valve) of a filter element assembly according to an embodiment of the present invention when the valve assembly is in a cut-off state;

[0061] Fig.26is a schematic diagram of a first stop valve (second stop valve) of a filter element assembly according to an embodiment of the present invention when the valve assembly is in a conducting state;

[0062] Fig. 27 is an exploded cross-sectional view of a filter element assembly according to Embodiment 3 of the present invention;

[0063] Fig.28 is a cross-sectional view of the filter element and the receiving seat of the filter element assembly according to the third embodiment of the present invention when the filter element is separated;

[0064] Fig.29 is a cross-sectional view of the filter element and the socket of the filter element assembly according to the third embodiment of the present invention during assembly;

[0065] Fig.30 is a cross-sectional view of the filter element and the socket of the filter element assembly according to the third embodiment of the present invention after the filter element and the socket are assembled;

[0066] Fig.31 is a cross-sectional view of a filter element shell body and a cover body of a filter element assembly according to a third embodiment of the present invention when the shell body and the cover body are separated;

[0067] Fig.32 is a top view of a filter element of a filter element assembly according to Embodiment 3 of the present invention;

[0068] Fig.33 is a bottom side view of a socket of a filter element assembly according to a third embodiment of the present invention;

[0069] Fig.34 is a schematic diagram of a filter element and a receiving seat of a filter element assembly according to a fourth embodiment of the present invention when the filter element is separated;

[0070] Fig.35 is a partial cross-sectional view of the filter element and the socket of the filter element assembly according to the fourth embodiment of the present invention after being assembled;

[0071] Fig.36 is a cross-sectional view of a socket of a filter element assembly according to a fourth embodiment of the present invention;

[0072] Fig.37 is a schematic diagram of a water heater assembly according to one embodiment of the present invention;

[0073] Fig.38 is a schematic diagram of a water heater assembly of a filter element assembly according to another embodiment of the present invention;

[0074] Fig.39 is a schematic diagram of the layout of a filter element assembly and a water heater of a water heater assembly according to an embodiment of the present invention;

[0075] Fig.40 is a schematic diagram of the layout of a filter element assembly, a water heater and a mixing valve of a water heater assembly according to an embodiment of the present invention;

[0076] Fig.41 It is a schematic layout diagram of a filter element assembly, a water heater and a water mixing valve of a water heater assembly according to another embodiment of the present invention.

[0077] Reference numerals:

[0078] Water heater assembly 1000;

[0079] Filter element assembly 100;

[0080] Connector 10; water inlet interface 111; water outlet interface 112; water inlet hole 113; water outlet hole 114; slide 12; valve assembly 13; first stop valve 131; first valve seat 1311; first valve core 1312; first communication channel 1313; first return spring 1314; second stop valve 132; second valve seat 1321; second valve core 1322; second communication channel 1323; second return spring 1324; first installation cavity 14; second installation cavity 15; communication cavity 16;

[0081] Filter element 20;

[0082] Shell 21; water inlet 211; water outlet 212; snap-fit ​​groove 213; shell body 214; cover body 215; cover body 2151; water outlet column 2152; water outlet channel 2153; water inlet channel 2154; dissolving and mixing chamber 216; sliding rib 217; fixing convex rib 218; limiting hole 219; first limiting section 2191; second limiting section 2192;

[0083] Water sealing structure 22; water stop pad 221; positioning groove 2211; limiting groove 2212; water stop spring 222; spring main body 2221; first matching part 2222; second matching part 2223; first plane 2224; second plane 2225; spring support 223; limiting rib 2231; support part 2232; flange 2233; first through hole 2234; second through hole 2235;

[0084] Filter material box 23; slow-release hole 231; containing cavity 232; box cover 233; box body 234; supporting rib 235;

[0085] One-way valve 24; first sealing ring 25; second sealing ring 26; third sealing ring 27; fourth sealing ring 28;

[0086] Push rod 30; limiting portion 31; matching portion 32;

[0087] Water heater 200 ; housing 210 ; heat exchange component 220 ; exchange inlet 230 ; exchange outlet 240 ; water mixing valve 300 . DETAILED DESCRIPTION

[0088] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0089] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0090] The filter element assembly 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0091] like Figure 1-Figure 36 As shown, the filter element assembly 100 according to the embodiment of the present invention comprises: a socket 10, a filter element 20 and a push rod 30, the socket 10 is formed with a water inlet interface 111 and a water outlet interface 112, the filter element 20 is detachably arranged on the socket 10, and the socket 10 and the filter element 20 are rotatably engaged. That is, the filter element 20 can be installed on the socket 10 by rotation, and the filter element 20 can also be removed from the socket 10 by rotation, so that the assembly method between the filter element 20 and the socket 10 is simple, and it is convenient to replace the filter element 20 after it fails, so as to ensure the purification effect of the filter element 20.

[0092] Among them, the filter element 20 includes: a shell 21 and a water sealing structure 22 and a filter material box 23 arranged in the shell 21. A water inlet 211 and a water outlet 212 are formed on the shell 21. The water inlet 211 is suitable for communicating with the water inlet interface 111, and the water outlet 212 is suitable for communicating with the water outlet interface 112. The filter material box 23 is used to hold slow-release filter material. That is to say, the filter element assembly 100 is connected with the water path on the upstream side through the water inlet interface 111, and is connected with the water path on the downstream side through the water outlet interface 112. The water inlet interface 111 can form a connected water flow channel between the water inlet 211 and the internal cavity of the shell 21, so that the water flow in the water path connected to the upstream side of the filter element assembly 100 can enter the internal cavity of the shell 21 through the water inlet interface 111 and the water inlet 211, and the water flow entering the shell 21 is purified by the slow-release filter material in the filter material box 23. At the same time, a connected water flow channel can be formed between the internal cavity of the shell 21, the water outlet 212 and the water outlet interface 112, so that the purified water flow in the internal cavity of the shell 21 flows through the water outlet 212 and the water outlet interface 112 to the water path connected to the downstream side of the filter element assembly 100, that is, the water flow passing through the filter element assembly 100 can be better purified, and the cleanliness of the water flow flowing to the downstream side through the filter element assembly 100 can be better improved.

[0093] Among them, the sustained-release filter material includes a base material and an additive. Specifically, the base material can be a sugar base or a wax base, etc., and the additive can be a solute with a special smell such as lavender or lemon, so that the water flow treated by the filter element assembly 100 has a special smell such as lavender or lemon, thereby improving the user's bathing comfort; the additive can also be a hydrating substance such as hyaluronic acid, so that the user can hydrate the skin during the bathing process; the additive can also be a substance such as ascorbic acid that can remove residual chlorine in the water, thereby better avoiding symptoms such as skin itching caused by residual chlorine in the water, so as to improve the user's bathing comfort.

[0094] Further, a limiting hole 219 is formed on the housing 21, which is opposite to the water sealing structure 22. The push rod 30 is suitable for being inserted into the limiting hole 219. When the filter element 20 is assembled with the socket 10, the socket 10 drives the push rod 30 to push the water sealing structure 22 to open the water inlet 211. That is to say, when the filter element 20 is assembled with the socket 10, the socket 10 drives the push rod 30 to move in the limiting hole 219 toward the direction close to the water sealing structure 22, and pushes the water sealing structure 22 toward the direction away from the water inlet 211 through the end of the push rod 30 away from the socket 10. After the filter element 20 is assembled with the socket 10, the water sealing structure 22 is spaced apart from the water inlet 211 under the push of the push rod 30 to open the water inlet 211, so as to form a connected water flow purification channel in the filter element assembly 100 to purify the water flowing through the filter element 20.

[0095] In the related art, when the filter element is replaced, the water in the filter element will spill out, and the spilled water may cause the ground to be slippery and cause the user to slip, or wet the user's clothes and cause the user to feel uncomfortable, etc., and the user needs to clean up the spilled water, which directly affects the user's experience. In the present application, after the filter element 20 is removed from the socket 10, if it is necessary to replace or check the filter element 20 that has failed, that is, does not meet the water purification requirements, the water sealing structure 22 closes the water inlet 211, so that the water in the filter element 20 cannot flow out through the water inlet 211. Therefore, by closing the water inlet 211 after the filter element 20 is separated from the socket 10 through the water sealing structure 22, the water in the filter element 20 can be better prevented from spilling out through the water inlet 211, thereby better avoiding the trouble caused by the spilled water to the user, which is beneficial to improving the user experience of the filter element assembly 100. According to the filter element assembly 100 of the embodiment of the present invention, when the filter element 20 is assembled with the socket 10, the socket 10 drives the top rod 30 to push the water sealing structure 22 to open the water inlet 211, so that a connected water purification channel is formed in the filter element assembly 100, so that the water flowing through the filter element assembly 100 can be better purified, and the user's water use comfort can be better improved through the slow-release filter material; after the filter element 20 is separated from the socket 10, the water sealing structure 22 closes the water inlet 211, which can better prevent the stored water in the shell 21 from spilling out through the water inlet 211, thereby better preventing the spilled water from causing trouble to the user, which is beneficial to improving the user experience of the filter element assembly 100.

[0096] According to some embodiments of the present invention, when the filter element 20 is rotated relative to the socket 10 for assembly, the length of the push rod 30 extending into the housing 21 gradually increases. That is, during the assembly process of the filter element 20 and the socket 10, the socket 10 drives the push rod 30 to move toward the housing 21 in the limiting hole 219, so that the depth of the push rod 30 inserted into the housing 21 toward one end of the water sealing structure 22 gradually increases, so that the end of the push rod 30 toward the water sealing structure 22 can gradually push the water sealing structure 22 to move in a direction away from the water inlet 211, that is, gradually increase the distance between the water sealing structure 22 and the water inlet 211 until the filter element 20 and the socket 10 are installed in place, so that the water flow can flow into the internal cavity of the housing 21 through the gap between the water inlet 211 and the water sealing structure 22.

[0097] According to some embodiments of the present invention, the push rod 30 is arranged on the socket 10. When the filter element 20 is assembled with the socket 10, the socket 10 pushes the water sealing structure 22 toward one end of the water sealing structure 22 through the push rod 30 to move and open the water inlet 211. That is, the push rod 30 is fixedly connected to the socket 10. Thus, while ensuring that the socket 10 can push the water sealing structure 22 to open the water inlet 211 through the push rod 30, the structure of the filter element 20 can be simplified. Specifically, when the filter element 20 is assembled with the socket 10, the push rod 30 is aligned with the limit hole 219 on the housing 21. As the depth of the filter element 20 inserted into the socket 10 increases, the push rod 30 is driven by the socket 10 to gradually move toward the inside of the housing 21 along the limit hole 219 and contact the water sealing structure 22. As the push rod 30 continues to extend into the housing 21, the water sealing structure 22 gradually opens the water inlet 211 under the push of the end of the push rod 30 away from the socket 10.

[0098] According to some optional embodiments of the present invention, the socket 10 and the ejector 30 are integrally formed. Thus, the integrally formed structure can not only ensure the structural and performance stability of the socket 10 and the ejector 30, but also facilitates molding and is simple to manufacture, and also eliminates the assembly parts and connection process used for connecting the socket 10 and the ejector 30, which has low production costs and greatly improves the assembly efficiency of the socket 10 and the ejector 30, ensuring the connection reliability of the socket 10 and the ejector 30. Furthermore, the integrally formed structure has high overall strength and stability and a longer service life.

[0099] According to some optional embodiments of the present invention, part of the water inlet 211 constitutes a limiting hole 219. That is, the push rod 30 is suitable for being inserted into the water inlet 211, and the push rod 30 is arranged opposite to the part of the water sealing structure 22 closing the water inlet 211, so when the filter element 20 is assembled with the socket 10, the socket 10 can directly push the part of the water sealing structure 22 opposite to the water inlet 211 away from the water inlet 211 through the push rod 30. In this way, the space in the water inlet 211 can be fully utilized, and at the same time, the stability of the push rod 30 pushing the water sealing structure 22 to open the water inlet 211 can be better improved.

[0100] According to some embodiments of the present invention, the push rod 30 is movably inserted into the limiting hole 219 along the axial direction of the filter element 20, and one end of the push rod 30 away from the water sealing structure 22 extends out of the housing 21. When the filter element 20 is assembled with the socket 10, the socket 10 drives the water sealing structure 22 to move and open the water inlet 211 by pushing the extended end of the push rod 30. In other words, the push rod 30 is arranged on the housing 21, and one end of the push rod 30 extending out of the housing 21 is arranged opposite to the socket 10, and one end of the push rod 30 extending into the housing 21 is arranged opposite to the water sealing structure 22. Therefore, when the filter element 20 is assembled with the socket 10, the socket 10 pushes the extended end of the push rod 30 to move toward the inside of the housing 21, so that the extended end of the push rod 30 can drive the water sealing structure 22 to move in a direction away from the water inlet 211 to open the water inlet 211. Therefore, by setting the push rod 30 in the limiting hole 219, the operation step of aligning the push rod 30 with the limiting hole 219 can be better omitted, thereby greatly simplifying the operation of the user replacing the filter element 20, which is beneficial to improving the user experience.

[0101] According to some optional embodiments of the present invention, the limiting hole 219 and the water inlet 211 are both arranged on the end surface of the shell 21 facing the socket 10, and the limiting hole 219 and the water inlet 211 are arranged at intervals. As a result, the limiting hole 219 and the water inlet 211 can make full use of the space on the end surface of the shell 21 facing the socket 10, and at the same time, when the filter element 20 is installed in the socket 10, it is convenient for the socket 10 to directly contact the top rod 30 and push the top rod 30 to move, which can better reduce the difficulty of matching the socket 10 and the top rod 30. In addition, the limiting hole 219 can better limit the swing of the top rod 30, and can prevent the top rod 30 from occupying the space in the water inlet 211, so as to prevent the top rod 30 from blocking the water flow through the water inlet 211 into the shell 21, which is conducive to increasing the water intake of the filter element 20.

[0102] Furthermore, there are multiple water inlets 211 and limit holes 219, and the water inlets 211 and the limit holes 219 are arranged alternately and spaced along the periphery of the water outlet 212. In other words, the water flow in the waterway connected to the water inlet interface 111 can enter the housing 21 through multiple water inlets 211, and multiple limit holes 219 are each provided with a push rod 30, so that the socket 10 can simultaneously push the position corresponding to the multiple push rods 30 on the water sealing structure 22 away from the water inlet 211 through the multiple push rods 30. In this way, the water intake and purification amount of the filter element 20 can be improved, and the stability of the socket 10 and the push rod 30 in cooperating to push the water sealing structure 22 to open the water inlet 211 can be improved. In addition, the water inlet 211 and the limit hole 219 can make full use of the space on the peripheral side of the water outlet 212, so that the layout of the water inlet 211, the water outlet 212 and the limit hole 219 is compact.

[0103] According to some optional embodiments of the present invention, the top rod 30 includes a limiting portion 31 and a matching portion 32, the limiting portion 31 is arranged at one end of the matching portion 32 facing the water sealing structure 22, that is, the limiting portion 31 is located at one end of the matching portion 32 facing the inside of the housing 21, the matching portion 32 is movably arranged in the limiting hole 219 along the axial direction of the filter element 20, and the size of the limiting portion 31 is larger than the size of the smallest part of the limiting hole 219. In other words, the limiting portion 31 cannot pass through the limiting hole 219. Therefore, the limiting portion 31 can better prevent the top rod 30 from coming out of the limiting hole 219, which is conducive to ensuring the stability of the connection between the filter element 20 and the top rod 30.

[0104] Further, the limiting hole 219 includes a first limiting section 2191 and a second limiting section 2192 that are connected. The first limiting section 2191 is located at one end of the second limiting section 2192 that faces the water sealing structure 22. The inner diameter of the first limiting section 2191 is greater than the inner diameter of the second limiting section 2192 and is used to accommodate the limiting portion 31. The diameter of the limiting portion 31 is greater than the inner diameter of the second limiting section 2192, and the matching portion 32 is penetrated in the second limiting section 2192. In other words, the limiting portion 31 cannot pass through the first limiting section 2191, and the first limiting section 2191 accommodates the limiting portion 31, which can better prevent the limiting portion 31 from protruding from the end of the limiting hole 219 that faces the water sealing structure 22. Therefore, with the cooperation of the limiting portion 31 and the first limiting section 2191, it is possible to prevent the top rod 30 from escaping from the limiting hole 219, while preventing the water sealing structure 22 from being unable to fit tightly with the water inlet 211 due to the protrusion of the limiting portion 31. That is, it is ensured that the water sealing structure 22 can fit tightly at the water inlet 211 to enhance the sealing effect of the water sealing structure 22 on the water inlet 211.

[0105] According to some embodiments of the present invention, a plurality of push rods 30 are provided, and the plurality of push rods 30 are evenly spaced and arranged along the circumference of the filter element 20. That is to say, when the filter element 20 is assembled with the seat 10, the seat 10 can simultaneously push the water sealing structure 22 toward the position of opening the water inlet 211 through the plurality of push rods 30, and the thrust of the plurality of push rods 30 can evenly act on the water sealing structure 22 along the circumference of the filter element 20, thereby better improving the stability of the push rods 30 pushing the water sealing structure 22 driven by the seat 10.

[0106] According to some embodiments of the present invention, the water-sealing structure 22 includes: a water-stopping pad 221 and a water-stopping spring 222. The water-stopping pad 221 is arranged opposite to the water inlet 211, and the water-stopping spring 222 is connected to the water-stopping pad 221. After the filter element 20 is separated from the socket 10, the water-stopping spring 222 is used to push the water-stopping pad 221 to close the water inlet 211. That is to say, when the water-sealing structure 22 is not subjected to other external forces, the water-stopping pad 221 is kept in the position of closing the water inlet 211 under the push of the water-stopping spring 222, that is, under the action of the water-stopping spring 222, the water-stopping pad 221 has a tendency to move toward the water inlet 211, thereby better preventing the water stored in the housing 21 from spilling out through the water inlet 211.

[0107] Specifically, when the filter element 20 is assembled with the socket 10, the socket 10 drives the push rod 30 to move and generates a thrust to push the water stop pad 221 toward a direction away from the water inlet 211. The thrust overcomes the elastic force of the water stop spring 222 so that the water stop pad 221 is spaced apart from the water inlet 211 to open the water inlet 211. Water can flow into the housing 21 through the gap between the water inlet 211 and the water stop pad 221 for purification. At this time, the water stop pad 221 is in a position to open the water inlet 211. When the filter element 20 is separated from the socket 10, the thrust of the top rod 30 pushing the water stop pad 221 to move away from the water inlet 211 disappears, and the compressed water stop spring 222 recovers its deformation. Under the push of the water stop spring 222, the water stop pad 221 automatically resets to the position of closing the water inlet 211 to prevent the water stored in the housing 21 from spilling out through the water inlet 211 after the filter element 20 is removed from the socket 10. At this time, the water stop pad 221 is in the position of closing the water inlet 211. Therefore, the water stop spring 222 can realize the automatic closure of the water inlet 211 after the filter element 20 is removed from the socket 10, and the user does not need to operate the water stop pad 221 separately to close the water inlet 211, which can greatly simplify the operation of the user when replacing the filter element 20.

[0108] According to some embodiments of the present invention, the diameter of the water stop spring 222 increases in the direction away from the water stop pad 221. That is, the diameter of the end of the water stop spring 222 away from the water stop pad 221 is greater than the diameter of the end of the water stop pad 221 toward the water stop pad 221, that is, in the direction toward the water stop pad 221, the water stop spring 222 is roughly tower-shaped. As a result, the load of the water stop spring 222 can be better increased, and the volume of the water stop spring 222 can be better reduced to save the installation space occupied by the water stop spring 222, and the water stop spring 222 can be better prevented from swinging in the radial direction, so that the water stop spring 222 can be prevented from driving the water stop pad 221 to produce radial deviation relative to the water inlet 211, that is, the water stop pad 221 is ensured to remain in a position relative to the water inlet 211, which is conducive to improving the stability of the water stop spring 222 supporting the water stop pad 221 and the blocking effect of the water sealing structure 22 on the water inlet 211.

[0109] According to some optional embodiments of the present invention, a limiting groove 2212 is formed on the end surface of the water stop pad 221 facing the limiting hole 219, and one end of the push rod 30 facing the water stop pad 221 is suitable for extending into the limiting groove 2212. Therefore, the limiting groove 2212 can better accommodate the end of the push rod 30 facing the water stop pad 221, and the limiting groove 2212 on the push rod 30 can better prevent the push rod 30 from shaking relative to the water stop pad 221, so that the cooperation between the water stop pad 221 and the push rod 30 can be better guaranteed, so as to improve the stability of the push rod 30 pushing the water stop pad 221 to open the water inlet 211.

[0110] According to some embodiments of the present invention, a positioning groove 2211 is formed on the end surface of the water stop pad 221 facing the water stop spring 222, the positioning groove 2211 is annular, and one end of the water stop spring 222 facing the water stop pad 221 is inserted into the positioning groove 2211. In other words, the water stop pad 221 and the water stop spring 222 are plug-connected through the positioning groove 2211. Therefore, the radial freedom of movement of the end of the water stop spring 222 facing the water stop pad 221 relative to the water stop pad 221 can be better limited by the positioning groove 2211, so that the radial relative position offset between the water stop pad 221 and the water stop spring 222 can be better avoided, and further the radial position offset of the water stop pad 221 relative to the water inlet 211 can be avoided, so that the water stop pad 221 is kept at a position relative to the water inlet 211, which is conducive to improving the blocking effect of the water stop pad 221 on the water inlet 211. In addition, through the cooperation between the positioning groove 2211 and the water-stop spring 222, the contact area between the water-stop pad 221 and the water-stop spring 222 can be increased to ensure the firm connection between the water-stop pad 221 and the water-stop spring 222, and at the same time, the positioning difficulty of the water-stop pad 221 and the water-stop spring 222 during assembly can be reduced, which is conducive to improving the assembly efficiency of the water-sealing structure 22. In a specific example, the water-stop spring 222 and the positioning groove 2211 are interference-fitted, which can prevent the water-stop spring 222 from falling out of the positioning groove 2211, so as to further improve the connection stability between the water-stop pad 221 and the water-stop spring 222.

[0111] Furthermore, the water stop spring 222 includes a spring main body 2221 and a first matching portion 2222, the first matching portion 2222 is connected to one end of the spring main body 2221 facing the water stop pad 221, and in the extension direction of the water stop spring 222, the diameter of the first matching portion 2222 remains unchanged, and the first matching portion 2222 is inserted into the positioning groove 2211. In other words, one end of the water stop spring 222 inserted into the positioning groove 2211 is formed into a first matching portion 2222 of equal diameter, and the plug-in connection between the water stop pad 221 and the water stop spring 222 is realized by the matching of the first matching portion 2222 and the positioning groove 2211. As a result, the first matching part 2222 can be smoothly inserted into the positioning groove 2211, which is beneficial to reducing the difficulty of assembling the water stop spring 222 and the water stop pad 221. At the same time, it can better increase the depth of the water stop spring 222 inserted into the positioning groove 2211 to prevent the water stop spring 222 from escaping from the positioning groove 2211, which is beneficial to improving the stability of the connection between the water stop pad 221 and the water stop spring 222.

[0112] Among them, the diameter of the spring main body 2221 gradually increases in the direction away from the water stop pad 221. That is, the diameter of the end of the spring main body 2221 away from the first matching portion 2222 is larger than the diameter of the end of the spring main body 2221 close to the first matching portion 2222, and in the direction away from the water stop pad 221, the outer peripheral wall of the spring main body 2221 smoothly transitions, that is, in the direction close to the first matching portion 2222, the spring main body 2221 is roughly tower-shaped, so that the load of the water stop spring 222 is large and the volume is small, and at the same time, it can better avoid the radial swing of the water stop spring 222 to drive the water stop pad 221 to produce radial deviation, which is conducive to improving the blocking effect of the water sealing structure 22 on the water inlet 211.

[0113] According to some embodiments of the present invention, the water sealing structure 22 further includes: a spring support 223, the spring support 223 is arranged in the housing 21 and is located on the side of the water stop pad 221 away from the water inlet 211, and the axial ends of the water stop spring 222 are respectively connected to the water stop pad 221 and the spring support 223. In other words, the spring support 223 is arranged in the housing 21 and the position is kept fixed, and the spring support 223 is supported on the end of the water stop spring 222 away from the water stop pad 221, so that the position of the water stop spring 222 away from the end of the water stop pad 221 can be ensured to be fixed by the spring support 223, so that the water stop spring 222 can, under the support of the spring support 223, push the water stop pad 221 to move in the direction away from the spring support 223, that is, towards the direction close to the water inlet 211, thereby ensuring the blocking effect of the water stop pad 221 on the water inlet 211.

[0114] According to some optional embodiments of the present invention, a plurality of limiting ribs 2231 arranged at intervals along the outer periphery of the water-stop spring 222 are formed on the end surface of the spring support 223 facing the water-stop pad 221, and the limiting ribs 2231 abut against the outer peripheral wall of the end of the water-stop spring 222 facing the spring support 223. In other words, the end of the water-stop spring 222 facing the spring support 223 can be better fixed by the plurality of limiting ribs 2231. In this way, the stability of the connection between the water-stop spring 222 and the spring support 223 can be better improved. At the same time, the radial freedom of movement of one end of the water-stop spring 222 toward the spring support 223 relative to the spring support 223 can be better limited through multiple limiting ribs 2231, thereby better avoiding the radial relative position offset between the water-stop spring 222 and the spring support 223, and further avoiding the radial position offset of the water-stop pad 221 relative to the water inlet 211 caused by the radial offset of the water-stop spring 222, so as to keep the water-stop pad 221 in a position relative to the water inlet 211, which is conducive to improving the sealing effect of the water-stop pad 221 on the water inlet 211. In addition, the contact area between the water stop spring 222 and the spring support 223 can be increased by a plurality of limiting ribs 2231, so that the water stop spring 222 and the spring support 223 can be firmly connected, and the connection structure between the water stop spring 222 and the spring support 223 is simple, which can reduce the difficulty of assembling the water stop spring 222 and the spring support 223. In a specific example, the water stop spring 222 and the plurality of limiting ribs 2231 are interference fit, which can prevent the water stop spring 222 from coming out of the plurality of limiting ribs 2231, so as to further improve the connection stability between the water stop spring 222 and the spring support 223.

[0115] Furthermore, the water stop spring 222 includes a spring main body 2221 and a second matching portion 2223, the second matching portion 2223 is connected to one end of the spring main body 2221 facing the spring support 223, in the extension direction of the water stop spring 222, the diameter of the second matching portion 2223 remains unchanged, and a plurality of limiting ribs 2231 are located on the outer peripheral side of the second matching portion 2223 and abut against the outer peripheral wall of the second matching portion 2223. In other words, one end of the water stop spring 222 facing the spring support 223 is formed into a second matching portion 2223 of equal diameter, and the connection between the water stop spring 222 and the spring support 223 is achieved by the abutment and matching of the second matching portion 2223 and the plurality of limiting ribs 2231. In this way, the assembly difficulty of the limiting rib 2231 and the second matching part 2223 can be better reduced, and the blocking height of the limiting rib 2231 to the second matching part 2223 can be better improved. At the same time, the contact area between the second matching part 2223 and the limiting rib 2231 can be increased to improve the connection stability between the second matching part 2223 and the limiting rib 2231, thereby preventing the water stop spring 222 from escaping from the limiting rib 2231.

[0116] The diameter of the spring main body 2221 gradually increases in the direction toward the spring support 223. That is, the diameter of the end of the spring main body 2221 close to the second matching portion 2223 is larger than the diameter of the end of the spring main body 2221 away from the second matching portion 2223, and the outer peripheral wall of the spring main body 2221 smoothly transitions in the direction toward the spring support 223, that is, in the direction away from the second matching portion 2223, the spring main body 2221 is roughly tower-shaped, so that the load of the water-stop spring 222 is large and the volume is small, and at the same time, the water-stop spring 222 can be better prevented from swinging in the radial direction and driving the water-stop pad 221 to deviate in the radial direction, which is conducive to improving the blocking effect of the water-sealing structure 22 on the water inlet 211.

[0117] According to some optional embodiments of the present invention, the filter box 23 is arranged on a side of the spring support 223 away from the water stop pad 221, and the spring support 223 is supported on the filter box 23. That is to say, the filter box 23 abuts against the end face of the spring support 223 away from the water stop pad 221, and the filter box 23 supports the spring support 223 in a direction close to the water stop pad 221, thereby preventing the spring support 223 from moving in a direction away from the water stop pad 221, that is, the position of the spring support 223 in the housing 21 can be better guaranteed, thereby better ensuring the position of the water stop spring 222 toward one end of the spring support 223, so that the water stop pad 221 can be closely attached to the water inlet 211 under the push of the water stop spring 222, which is conducive to improving the blocking effect of the water sealing structure 22 on the water inlet 211. In addition, the filter box 23 can be better supported in a direction away from the water stop pad 221 by the spring support 223, that is, the spring support 223 and the filter box 23 can support each other, which can better prevent the filter box 23 from shaking after installation, and help ensure that the filter box 23 is firmly installed.

[0118] According to some embodiments of the present invention, a holding cavity for holding slow-release filter material is formed in the filter material box 23, and a slow-release hole 231 is formed on the filter material box 23, and water flow is suitable for flowing into or out of the holding cavity through the slow-release hole 231. In other words, the slow-release filter material in the holding cavity 232 can be released into the housing 21 through the slow-release hole 231, and the water flow is optimized by contacting with the water flow in the housing 21. Specifically, the water inlet 211 and the water outlet 212 are both connected to the internal cavity of the filter box 23, namely the containing cavity 232, through the slow-release hole 231. Therefore, when water passes through the filter element 20, part of the water flow entering the shell 21 through the water inlet 211 can flow into the filter box 23 through the slow-release hole 231. The slow-release filter material is slowly dissolved after contacting with the water flow. The slowly-released dissolved filter material can be released into the water flow around the slow-release hole 231 along with the water flow, thereby realizing the optimized treatment of the water flow by the slow-release filter material. The water flow with dissolved filter material can flow into the water channel connected to the downstream side of the filter element assembly 100 through the water outlet 212 and the water outlet interface 112 for user use.

[0119] Furthermore, the shell 21 includes a water outlet column 2152 extending axially along the filter element 20, and a water outlet channel 2153 connected to the water outlet interface 112 is formed in the water outlet column 2152. A water inlet channel 2154 located on the outer peripheral side of the water outlet column 2152 is also formed in the shell 21, and the water sealing structure 22 is arranged in the water inlet channel 2154. The filter box 23 is located at one end of the water outlet column 2152 away from the socket 10. The water outlet column 2152 and the filter box 23 define a dissolving and mixing chamber 216, and the dissolving and mixing chamber 216 connects the water inlet channel 2154 and the water outlet channel 2153. A slow-release hole 231 is formed on the side wall of the filter box 23 facing the dissolving and mixing chamber 216.

[0120] That is to say, the water inlet 211 is connected to the dissolving and mixing chamber 216 through the water inlet channel 2154, and the water outlet 212 is connected to the dissolving and mixing chamber 216 through the water outlet channel 2153. A connected water flow channel is formed between the water inlet 211, the water inlet channel 2154, the dissolving and mixing chamber 216, the water outlet channel 2153 and the water outlet 212. At the same time, part of the water flow entering the dissolving and mixing chamber 216 can enter the filter box 23 through the slow release hole 231, and the filter box 23 can be connected to the filter box 23. The slow-release filter material slowly dissolves after coming into contact with the water flow, and as the water level in the filter material box 23 continues to rise and exceeds the slow-release hole 231, the slowly-released dissolved filter material can be released into the water flow in the dissolution mixing chamber 216 through the slow-release hole 231 along with the water flow, and the water flow dissolved with the slow-release filter material can be finally discharged from the filter element assembly 100 through the water outlet channel 2153, the water outlet 212 and the water outlet interface 112, so as to realize the purification of the water flow in the process of the water flow flowing in the filter element assembly 100.

[0121] According to some embodiments of the present invention, a fixing structure is provided in the housing 21, and the fixing structure includes a plurality of fixing ribs 218, and the plurality of fixing ribs 218 are arranged at intervals along the circumference of the filter box 23 and abut against the outer peripheral wall of the filter box 23. Thus, the plurality of fixing ribs 218 can better limit the freedom of movement of the filter box 23 in the radial direction, that is, the radial positional deviation of the filter box 23 relative to the housing 21 can be better avoided, so that the stability of the filter box 23 after installation can be better ensured.

[0122] Furthermore, at least one of the peripheral wall of the filter material box 23 and the fixed convex rib 218 is provided with a guide structure. Among them, the guide structure may be provided only on the peripheral wall of the filter material box 23, the guide structure may be provided only on the fixed convex rib 218, or the guide structure may be provided on both the peripheral wall and the fixed convex rib 218 of the filter material box 23. Therefore, during the process of installing the filter material box 23 into the housing 21, the position deviation of the filter material box 23 relative to the housing 21 can be well corrected by the guide structure on the peripheral wall of the filter material box 23 and / or the fixed convex rib 218, thereby ensuring that the filter material box 23 can be accurately installed in place under the action of the guide structure, which can well reduce the difficulty of positioning and assembly during the installation of the filter material box 23.

[0123] According to some embodiments of the present invention, a water inlet hole 113 and a water outlet hole 114 are further formed in the socket 10, the water inlet hole 113 is suitable for connecting the water inlet interface 111 and the water inlet 211, and the water outlet hole 114 is suitable for connecting the water outlet interface 112 and the water outlet 212. That is, when the water inlet hole 113 connects the water inlet interface 111 and the water inlet 211, the water inlet hole 113 is located between the water inlet interface 111 and the water inlet 211 in the direction of water flow, and the water flows into the housing 21 through the water inlet interface 111, the water inlet hole 113 and the water inlet 211 in sequence; when the water outlet hole 114 connects the water outlet interface 112 and the water outlet 212, the water outlet hole 114 is located between the water outlet interface 112 and the water outlet 212 in the direction of water flow, and the water in the housing 21 is discharged from the filter element assembly 100 through the water outlet 212, the water outlet hole 114 and the water outlet interface 112 in sequence. Among them, a valve assembly 13 is provided in the socket 10, and the valve assembly 13 has a conducting state and a blocking state. After the filter element 20 is assembled with the socket 10, the valve assembly 13 is in the conducting state, the water inlet hole 113 is connected to the water inlet interface 111, and the water outlet hole 114 is connected to the water outlet interface 112.

[0124] That is to say, after the filter element 20 is assembled with the socket 10, the water inlet hole 113 is connected with the water inlet interface 111 and the water sealing structure 22 opens the water inlet 211, and a connected water flow channel is formed between the water inlet interface 111, the water inlet hole 113, the water inlet 211 and the internal cavity of the shell 21, so that the water flow in the waterway connected to the upstream side of the filter element assembly 100 can enter the internal cavity of the shell 21 through the water inlet interface 111, the water inlet hole 113 and the water inlet 211 in sequence for purification. At the same time, the internal cavity of the shell 21 A connected water flow channel is formed between the water outlet 212, the water outlet hole 114 and the water outlet interface 112, so that the purified water in the internal cavity of the shell 21 can flow into the waterway connected to the downstream side of the filter element assembly 100 through the water outlet 212, the water outlet hole 114 and the water outlet interface 112, that is, a connected water flow purification channel is formed in the filter element assembly 100, so that the water flowing through the filter element assembly 100 can be better purified, and then the cleanliness of the water flowing to the downstream side through the filter element assembly 100 can be better improved.

[0125] Furthermore, after the filter element 20 is separated from the socket 10, the valve assembly 13 is in a cut-off state, the water inlet hole 113 is cut off from the water inlet interface 111, and the water outlet hole 114 is cut off from the water outlet interface 112. Therefore, after the filter element 20 is separated from the socket 10, the water inlet interface 111 is cut off from the water inlet port 211, the water outlet port 212 is cut off from the water outlet interface 112, and the water sealing structure 22 closes the water inlet port 211, which can prevent the water flow in the waterway connected to the upstream side of the filter element assembly 100 from spilling out through the water inlet hole 113, and at the same time, it can prevent the water flow in the waterway connected to the downstream side of the filter element assembly 100 from spilling out through the water outlet hole 114. In other words, the valve assembly 13 in the cut-off state can better prevent water leakage from the socket 10, and at the same time, the water sealing structure 22 can prevent the water stored in the housing 21 from spilling out through the water inlet port 211. In this way, waste of water resources can be better avoided. At the same time, when replacing the filter element 20, the user does not need to close the water circuits connected to the upstream and downstream sides of the filter element assembly 100. For example, when the water inlet interface 111 is directly connected to the water main pipe, the filter element 20 can be replaced without closing the water main pipe valve. This can better simplify the operation of replacing the filter element 20 for the user, and at the same time can better avoid the trouble caused to the user by spilled water, which is beneficial to improving the user experience.

[0126] In addition, the switching of the valve assembly 13 between the on state and the off state is achieved through the cooperation of the filter element 20 and the socket 10. Specifically, when the filter element 20 and the socket 10 are assembled, the filter element 20 can better push the valve assembly 13 to switch to the on state. After the filter element 20 is separated from the socket 10, the thrust of the filter element 20 on the valve assembly 13 disappears, and the valve assembly 13 is reset to the off state. That is, the user only needs to operate the filter element 20 and the socket 10 to install or disassemble, which can better save the step of the user controlling the valve assembly 13 separately, and help simplify the operation of the user when replacing the filter element 20.

[0127] Among them, in the conducting state, the water inlet interface 111 is separated from the water outlet interface 112. That is to say, after the filter element 20 and the socket 10 are assembled, the water inlet interface 111 and the water outlet interface 112 cannot be directly connected, that is, the water flow in the waterway connected to the upstream side of the filter element assembly 100 cannot directly flow through the water inlet interface 111 and the water outlet interface 112 to the waterway connected to the downstream side of the filter element assembly 100. At this time, the water inlet interface 111 is connected to the water outlet interface 112 through the water inlet 211, the internal cavity of the shell 21 and the water outlet 212, so that the water flow in the waterway connected to the upstream side of the filter element assembly 100 needs to flow through the filter element 20 for purification and then flow to the waterway connected to the downstream side of the filter element assembly 100 through the water outlet interface 112, which can better avoid the unpurified water flow directly flowing into the waterway connected to the downstream side of the filter element assembly 100, so as to ensure the purification effect of the filter element assembly 100.

[0128] Furthermore, in the cut-off state, the water inlet interface 111 is connected to the water outlet interface 112. That is, after the filter element 20 is separated from the socket 10, a connected water flow channel is formed between the water inlet interface 111 and the water outlet interface 112, so that the water flow in the waterway connected to the upstream side of the filter element assembly 100 can directly flow to the waterway connected to the downstream side of the filter element assembly 100 through the water inlet interface 111 and the water outlet interface 112, so that when the filter element 20 is removed from the socket 10, the water flow in the waterway connected to the downstream side of the filter element assembly 100 can be guaranteed.

[0129] Furthermore, a first installation cavity 14, a second installation cavity 15 and a connecting cavity 16 are formed in the socket 10, the first installation cavity 14 and the second installation cavity 15 are separated from each other, the valve assembly 13 includes a first stop valve 131 and a second stop valve 132, the first installation cavity 14 is provided with a first stop valve 131, the first stop valve 131 includes a first valve seat 1311 and a first valve core 1312, a first connecting channel 1313 connected to the water inlet interface 111 is formed in the first valve seat 1311, the first valve core 1312 is movably arranged in the first connecting channel 1313 between a first position and a second position, the second installation cavity 15 is provided with a second stop valve 132, and the second stop valve 132 is provided in the second installation cavity 14. 32 includes a second valve seat 1321 and a second valve core 1322, a second connecting channel 1323 connected to the water outlet interface 112 is formed in the second valve seat 1321, and the second valve core 1322 is movably arranged in the second connecting channel 1323 between a third position and a fourth position; wherein, when the valve assembly 13 is in a conducting state, the first valve core 1312 is in the first position and the second valve core 1322 is in the third position, the first connecting channel 1313 connects the water inlet interface 111 and the water inlet hole 113, the second connecting channel 1323 connects the water outlet interface 112 and the water outlet hole 114, and the first connecting channel 1313 and the second connecting channel 1323 are both separated from the connecting cavity 16. That is to say, when the first valve core 1312 is in the first position and the second valve core 1322 is in the third position, the first stop valve 131 connects the water flow channel between the water inlet interface 111 and the water inlet hole 113 and cuts off the water flow channel between the water inlet interface 111 and the connecting chamber 16, so that the water inlet interface 111 is connected with the water inlet hole 113 through the first connecting passage 1313, and the second stop valve 132 connects the water flow channel between the water outlet interface 112 and the water outlet hole 114 and cuts off the water flow channel between the water outlet interface 112 and the connecting chamber 16, so that the water outlet interface 112 is connected with the water outlet hole 114 through the second connecting passage 1323, so that the water inlet interface 111, the first connecting passage 1313, and the water inlet hole 113 can be connected. A connected water flow channel is formed between the hole 113, the water inlet 211, the internal cavity of the shell 21, the water outlet 212, the water outlet hole 114, the second connecting channel 1323 and the water outlet interface 112. At the same time, the water inlet interface 111 cannot be directly connected to the water outlet interface 112 through the first connecting channel 1313, the connecting cavity 16 and the second connecting channel 1323, so that the water flow in the waterway connected to the upstream side of the filter element assembly 100 needs to flow through the filter element 20 for purification and then flow to the waterway connected to the downstream side of the filter element assembly 100 through the water outlet interface 112. This can better prevent the unpurified water flow from directly flowing into the waterway connected to the downstream side of the filter element assembly 100, so as to ensure the purification effect of the filter element assembly 100.

[0130] Further, when the valve assembly 13 is in the cut-off state, the first valve core 1312 is in the second position and the second valve core 1322 is in the fourth position, the first communication channel 1313 is isolated from the water inlet hole 113, the second communication channel 1323 is isolated from the water outlet hole 114, and the first communication channel 1313 and the second communication channel 1323 are connected through the communication chamber 16. That is to say, when the first valve core 1312 is in the second position and the second valve core 1322 is in the fourth position, the first stop valve 131 cuts off the water flow channel between the water inlet interface 111 and the water inlet hole 113 and opens the water flow channel between the water inlet interface 111 and the communication chamber 16, so that the water inlet interface 111 is connected to the communication chamber 16 through the first communication channel 1313, and the second stop valve 132 cuts off the water flow channel between the water outlet interface 112 and the water outlet hole 114 and opens the water flow channel between the communication chamber 16 and the water inlet interface 111, so that the water outlet interface 112 is connected to the communication chamber 16 through the second communication channel. 1323 is connected to the communication chamber 16, so that after the filter element 20 is separated from the socket 10, a communicating water flow channel is formed between the water inlet interface 111, the first communication channel 1313, the communication chamber 16, the second communication channel 1323 and the water outlet interface 112, so that the water flow in the waterway connected to the upstream side of the filter element assembly 100 can directly flow to the waterway connected to the downstream side of the filter element assembly 100 through the water inlet interface 111 and the water outlet interface 112, so that when the filter element 20 is removed from the socket 10, the water flow in the waterway connected to the downstream side of the filter element assembly 100 can be guaranteed. Supply. In a specific example, the first stop valve 131 and the second stop valve 132 are the same.

[0131] According to some embodiments of the present invention, a sliding rib 217 is provided on one of the inner peripheral wall of the socket 10 and the outer peripheral wall of the housing 21, and a sliding groove 12 is provided on the other of the inner peripheral wall of the socket 10 and the outer peripheral wall of the housing 21, and the sliding rib 217 and the sliding groove 12 are engaged with each other through the relative rotation of the socket 10 and the filter element 20. That is, through the cooperation of the sliding groove 12 and the sliding rib 217, the rotational engagement between the housing 21 and the socket 10 can be achieved, so that the assembly method between the housing 21 and the socket 10 is simple, and the filter element 20 is detachably connected to the socket 10 through the rotational engagement of the housing 21 and the socket 10, so that the replacement of the filter element 20 is convenient. Specifically, the filter element 20 can be installed on the socket 10 by rotation, such as forward rotation. When the filter element 20 rotates forward relative to the socket 10, the sliding bar 217 rotates relative to the sliding groove 12 and gradually enters the sliding groove 12. The sliding groove 12 limits the sliding bar 217 to prevent the housing 21 from falling off the socket 10; the filter element 20 can also be removed from the socket 10 by rotation, such as reverse rotation. When the filter element 20 reverses relative to the socket 10, the sliding bar 217 rotates relative to the sliding groove 12 and gradually rotates out of the sliding groove 12 until the sliding bar 217 is completely disengaged from the sliding groove 12 to release the limiting effect of the sliding groove 12 on the sliding bar 217, thereby facilitating the removal of the filter element 20 from the socket 10.

[0132] Reference below Figure 1-Figure 20 The filter element assembly 100 according to a specific embodiment of the present invention is described. It is worth noting that the following description is only exemplary and intended to be used to explain the present invention, and cannot be understood as limiting the present invention.

[0133] Embodiment 1

[0134] The filter element assembly 100 includes a socket 10, a filter element 20 and a push rod 30, wherein the filter element 20 is detachably connected to the lower end of the socket 10, and the filter element 20 includes: a shell 21, a water sealing structure 22 and a filter material box 23, the shell 21 includes a shell body 214 and a cover body 215 that are detachably connected, and a fourth sealing ring 28 is provided at the connection position between the cover body 215 and the shell body 214, the shell body 214 opens upward, and the cover body 215 is covered on the upper end of the shell body 214, and the cover body 215 includes a cover body 2151 and a water outlet column 2152, the water outlet column 2152 extends in the up-down direction and is penetrated at the center position of the cover body 2151, the upper end of the water outlet column 2152 extends out of the upper end surface of the cover body 2151, and an outlet is formed in the water outlet column 2152 A water channel 2153, a one-way valve 24 which is unidirectionally directed upward is provided in the water outlet channel 2153, a third sealing ring 27 is provided between the outer peripheral wall of the one-way valve 24 and the inner peripheral wall of the water outlet channel 2153, a water outlet 212 is formed at the upper end of the water outlet channel 2153, the water outlet column 2152 and the cover body 2151 jointly define a water inlet channel 2154 located on the outer peripheral side of the water outlet column 2152, the water flow direction of the water inlet channel 2154 is opposite to that of the water outlet channel 2153, a plurality of water inlets 211 which are arranged at intervals along the peripheral direction of the water outlet 212 are formed on the upper end surface of the cover body 2151, the water inlet 211 is arc-shaped, and the plurality of water inlets 211 are in the same circular ring, and the water inlet end, i.e. the upper end, of the water inlet channel 2154 is connected to the water inlet 211.

[0135] Among them, a water inlet interface 111, a water outlet interface 112, a water inlet hole 113 and a water outlet hole 114 are formed on the socket 10. The water inlet hole 113 and the water outlet hole 114 are formed on the inner bottom wall of the socket 10 and are respectively connected to the water inlet 211 and the water outlet 212. After the filter element 20 and the socket 10 are assembled, the upper end of the water outlet column 2152 is inserted into the water outlet hole 114, and a second sealing ring 26 is provided between the outer peripheral wall of the water outlet column 2152 and the inner peripheral wall of the water outlet hole 114.

[0136] In addition, the water sealing structure 22 is arranged in the water inlet channel 2154 and is sleeved on the water outlet column 2152. Specifically, the water sealing structure 22 includes a water stop pad 221, a water stop spring 222 and a spring support 223 arranged in sequence from top to bottom. The water stop pad 221 is annular and is spaced apart from the side wall of the water inlet channel 2154 in the radial direction of the filter element 20. The water stop pad 221 is arranged at the lower end of the plurality of water inlets 211 and is arranged opposite to the plurality of water inlets 211. Specifically, the top rod 30 is arranged on the side wall of the seat 10 facing the filter element 20, that is, on the inner bottom wall of the seat 10. The seat 10 and the filter element 2 0 rotational clamping, a slide groove 12 is formed on the inner peripheral wall of the socket 10, and a slide rib 217 is formed on the outer peripheral wall of the cover body 215. The slide groove 12 and the slide rib 217 are clamped by rotation. In the rotation direction along the installation of the filter element 20, the slide rib 217 extends toward the direction of the inner bottom wall close to the socket 10, that is, upwardly inclined. Therefore, during the assembly process of the filter element 20 and the socket 10, the filter element 20 moves toward the direction of the inner bottom wall close to the socket 10, so that the socket 10 can drive the push rod 30 to move toward the inside of the shell 21 to push the water stop pad 221 to move downward and open the water inlet 211. In addition, a first sealing ring 25 is provided between the outer peripheral wall of the cover body 215 and the inner peripheral wall of the socket 10. When the filter element 20 and the socket 10 are assembled, the push rod 30 is passed through the water inlet 211 and rotates along the water inlet 211, and the water stop pad 221 is pushed downward by the lower end of the push rod 30 to squeeze the water stop spring 222 to open the water inlet 211.

[0137] Furthermore, an annular positioning groove 2211 is formed on the lower end surface of the water-stop pad 221, and the water-stop spring 222 includes a first matching portion 2222, a spring main body 2221 and a second matching portion 2223 connected in sequence from top to bottom. The diameters of the first matching portion 2222 and the second matching portion 2223 in the up and down directions remain unchanged, and the diameter of the spring main body 2221 gradually increases from top to bottom. The first matching portion 2222 is inserted into the positioning groove 2211, and in the up and down directions, the height of the first matching portion 2222 is less than the depth of the positioning groove 2211, and the upper end surface of the first matching portion 2222 is formed as a first plane 2224, and the first plane 2224 is parallel to the bottom wall of the positioning groove 2211, that is, the downward side wall and is in contact with the bottom wall of the positioning groove 2211.

[0138] Further, the spring support 223 includes a limiting rib 2231, a support portion 2232 and a flange 2233. The limiting rib 2231 is provided on the upper end surface of the support portion 2232. The outer peripheral edge of the support portion 2232 is bent downward to extend to form the flange 2233. A clamping groove 213 is formed on the inner peripheral wall of the cover body 2151. The flange 2233 is clamped and matched in the clamping groove 213. Specifically, a first through hole 2234 and a second through hole 2235 are formed on the support portion 2232. The first through hole 2234 is located at the center of the support portion 2232 in the horizontal direction. The lower end of the water column 2152 is penetrated in the first through hole 2234. The second through hole 2235 is provided in a plurality and is in an arc shape. The plurality of second through holes 2235 are arranged at intervals along the outer peripheral direction of the first through hole 2234, so that the water flow in the water inlet channel 2154 can flow downward through the second through hole 2235. In addition, a plurality of limiting ribs 2231 are provided, and the plurality of limiting ribs 2231 are arranged at intervals along the circumferential direction of the first through hole 2234. The second matching portion 2223 is located between the plurality of limiting ribs 2231, and the outer peripheral wall of the second matching portion 2223 abuts against the radial inner wall of the plurality of limiting ribs 2231. In the up and down directions, the height of the second matching portion 2223 is less than the height of the limiting rib 2231, and the lower end face of the second matching portion 2223 is formed as a second plane 2225, and the second plane 2225 is parallel to the upper end face of the support portion 2232 and fits with the upper end face of the support portion 2232.

[0139] Further, the filter material box 23 is placed in the shell body 214, the outer peripheral wall of the filter material box 23 is spaced apart from the inner peripheral wall of the shell body 214 and is located below the water outlet column 2152, a dissolution and filtration chamber is formed between the water outlet column 2152 and the filter material box 23, and the dissolution and mixing chamber 216 is located below the water inlet channel 2154 and the water outlet channel 2153, and is communicated with the water inlet channel 2154 and the water outlet channel 2153. Among them, the filter material box 23 includes a detachably connected box cover 233 and a box body 234, the box cover 233 and the box body 234 define a holding chamber 232 for holding slow-release filter material, the upper end surface of the box cover 233 is spaced apart from the water outlet column 2152 and forms a slow-release hole 231 communicated with the holding chamber 232, the slow-release hole 231 and the water outlet channel 2153 are arranged opposite to each other in the up-down direction, and a plurality of support protrusions arranged at intervals along the circumference of the filter element 20 are also provided on the upper end surface of the box cover 233. Rib 235, the upper end of the supporting rib 235 abuts against the bottom wall of the supporting portion 2232, a plurality of fixed ribs 218 arranged at intervals along the circumference of the filter element 20 are provided on the inner wall of the shell body 214, and a guide structure is formed on the radial inner wall of the fixed rib 218 and the outer peripheral wall of the box body 234, the lower end of the box body 234 is located between the plurality of fixed ribs 218 and the outer peripheral wall of the box body 234 abuts against the radial inner wall of the fixed rib 218 to limit the movement of the filter box 23.

[0140] Embodiment 2

[0141] The structure of this embodiment is substantially the same as that of the first embodiment, wherein the same components are marked with the same reference numerals. Figure 21-26 The difference between the second embodiment and the first embodiment is that, the socket 10 is further formed with a first mounting cavity 14, a second mounting cavity 15 and a connecting cavity 16, the second mounting cavity 15 is arranged at the center of the socket 10, the first mounting cavity 14 and the second mounting cavity 15 are spaced apart in the radial direction of the filter element 20 and extend in the up-down direction, the connecting cavity 16 is arranged on the upper side of the first mounting cavity 14 and the second mounting cavity 15 and is connected with the upper end of the first mounting cavity 14 and the upper end of the second mounting cavity 15, the lower end of the first mounting cavity 14 constitutes a water inlet hole 113, and the lower end of the second mounting cavity 15 constitutes a water outlet hole 114. Furthermore, a valve assembly 13 is provided in the socket 10, and the valve assembly 13 includes a first stop valve 131 provided in the first installation cavity 14 and a second stop valve 132 provided in the second installation cavity 15. The first stop valve 131 includes a first valve seat 1311, a first valve core 1312 and a first return spring 1314. The first valve seat 1311 is penetrated in the first installation cavity 14 along the up-down direction, and a first connecting channel 1313 extending and penetrating along the up-down direction is formed in the first valve seat 1311. The water inlet interface 111 is communicated with the first connecting channel 1313 at a middle position in the up-down direction. The first valve core 1312 is penetrated in the first connecting channel 1313 and the lower end thereof extends out of the side wall of the socket 10 toward the filter element 20, i.e., the inner bottom wall of the socket 10. The first return spring 1314 is provided at the first valve core 1312 and the first valve seat 1311 and is used to push the first valve core 1312 to move downward; the second stop valve 132 includes a second valve seat 1321, a second valve core 1322 and a second return spring 1324, the second valve seat 1321 is arranged in the second installation cavity 15 along the up and down directions, and a second connecting channel 1323 extending and penetrating in the up and down directions is formed in the second valve seat 1321, the water outlet interface 112 is connected with the second connecting channel 1323 at the middle position in the up and down directions, the second valve core 1322 is arranged in the second connecting channel 1323 and the lower end extends out of the side wall of the connecting seat 10 toward the filter element 20, that is, the inner bottom wall of the connecting seat 10, the second return spring 1324 is arranged between the second valve core 1322 and the second valve seat 1321 and is used to push the second valve core 1322 to move downward.

[0142] Among them, the first valve core 1312 has a first position and a second position, and the second valve core 1322 has a third position and a fourth position. Specifically, when the filter element 20 is separated from the socket 10, the first valve core 1312 is in the second position under the push of the first reset spring 1314, and the first valve core 1312 blocks the lower end opening of the first connecting channel 1313 to separate the water inlet interface 111 and the water inlet hole 113, and at the same time, the first valve core 1312 opens the upper end opening of the first connecting channel 1313 to connect the water inlet interface 111 and the connecting chamber 16; the second valve core 1322 is in the fourth position under the push of the second reset spring 1324, and the second valve core 1322 blocks the lower end opening of the second connecting channel 1323 to separate the water outlet interface 112 and the water outlet hole 114, and at the same time, the second valve core 1322 opens the upper end opening of the second connecting channel 1323 to connect the water outlet interface 112 and the connecting chamber 16. During the assembly of the filter element 20 and the socket 10, when the filter element 20 moves upward relative to the socket 10, it pushes the first valve core 1312 to move upward to the first position, and the first valve core 1312 opens the lower end opening of the first connecting channel 1313 to connect the water inlet interface 111 and the water inlet hole 113, and at the same time, the first valve core 1312 blocks the upper end opening of the first connecting channel 1313 to separate the water inlet interface 111 and the connecting chamber 16; at the same time, the filter element 20 pushes the second valve core 1322 to move upward to the third position, the second valve core 1322 opens the lower end opening of the second connecting channel 1323 to connect the water outlet interface 112 and the water outlet hole 114, and the second valve core 1322 blocks the upper end opening of the second connecting channel 1323 to separate the water outlet interface 112 and the connecting chamber 16.

[0143] Embodiment 3

[0144] The structure of this embodiment is substantially the same as that of the first embodiment, wherein the same components are marked with the same reference numerals. Figure 27-Figure 33The difference between the third embodiment and the first embodiment is that the push rod 30 is arranged in the filter element 20. Specifically, a plurality of limiting holes 219 are formed on the upper end surface of the cover body 2151. The plurality of limiting holes 219 and the plurality of water inlets 211 are alternately arranged along the outer peripheral direction of the water outlet column 2152. The push rod 30 is movably arranged in the limiting hole 219 in the up-down direction. The limiting hole 219 includes a first limiting section 2191 and a second limiting section 2192 connected in the up-down direction. The first limiting section 2191 is located at the second limiting section 2192. 2, the inner diameter of the first limiting section 2191 is larger than the inner diameter of the second limiting section 2192, the mandrel 30 includes a limiting portion 31 and a matching portion 32, the limiting portion 31 is arranged at the lower end of the matching portion 32 and the diameter of the limiting portion 31 is larger than the inner diameter of the second limiting section 2192, the matching portion 32 is penetrated in the second limiting section 2192, the first limiting section 2191 is used to accommodate the limiting portion 31, the upper end surface of the limiting portion 31 forms a guiding inclined surface, and the guiding inclined surface extends obliquely from the bottom to the top in the direction close to the central axis of the mandrel 30. In addition, a limiting groove 2212 is formed on the upper end surface of the water stop pad 221, and the limiting portion 31 and the limiting groove 2212 have the same size for accommodating the limiting portion 31.

[0145] Embodiment 4

[0146] The structure of this embodiment is substantially the same as that of the third embodiment, wherein the same components are marked with the same reference numerals. Figure 34-Figure 36The difference between the fourth embodiment and the third embodiment is that, a first mounting cavity 14, a second mounting cavity 15 and a connecting cavity 16 are further formed on the socket 10, and the second mounting cavity 15 is arranged at the center position of the socket 10, and the first mounting cavity 14 and the second mounting cavity 15 are arranged at intervals along the radial direction of the filter element 20 and extend in the up and down direction, and the connecting cavity 16 is arranged on the upper side of the first mounting cavity 14 and the second mounting cavity 15 and is connected with the upper end of the first mounting cavity 14 and the upper end of the second mounting cavity 15, and the lower end of the first mounting cavity 14 constitutes a water inlet hole 113, and the lower end of the second mounting cavity 15 constitutes a water outlet hole 114. Furthermore, a valve assembly 13 is provided in the socket 10, and the valve assembly 13 includes a first stop valve 131 provided in the first installation cavity 14 and a second stop valve 132 provided in the second installation cavity 15. The first stop valve 131 includes a first valve seat 1311, a first valve core 1312 and a first return spring 1314. The first valve seat 1311 is penetrated in the first installation cavity 14 along the up-down direction, and a first connecting channel 1313 extending and penetrating along the up-down direction is formed in the first valve seat 1311. The water inlet interface 111 is communicated with the first connecting channel 1313 at a middle position in the up-down direction. The first valve core 1312 is penetrated in the first connecting channel 1313 and the lower end thereof extends out of the side wall of the socket 10 toward the filter element 20, i.e., the inner bottom wall of the socket 10. The first return spring 1314 is provided at the first valve core 1312 and the first valve seat 1311 and is used to push the first valve core 1312 to move downward; the second stop valve 132 includes a second valve seat 1321, a second valve core 1322 and a second return spring 1324, the second valve seat 1321 is arranged in the second installation cavity 15 along the up and down directions, and a second connecting channel 1323 extending and penetrating in the up and down directions is formed in the second valve seat 1321, the water outlet interface 112 is connected with the second connecting channel 1323 at the middle position in the up and down directions, the second valve core 1322 is arranged in the second connecting channel 1323 and the lower end extends out of the side wall of the connecting seat 10 toward the filter element 20, that is, the inner bottom wall of the connecting seat 10, the second return spring 1324 is arranged between the second valve core 1322 and the second valve seat 1321 and is used to push the second valve core 1322 to move downward.

[0147] Among them, the first valve core 1312 has a first position and a second position, and the second valve core 1322 has a third position and a fourth position. Specifically, when the filter element 20 is separated from the socket 10, the first valve core 1312 is in the second position under the push of the first reset spring 1314, and the first valve core 1312 blocks the lower end opening of the first connecting channel 1313 to separate the water inlet interface 111 and the water inlet hole 113, and at the same time, the first valve core 1312 opens the upper end opening of the first connecting channel 1313 to connect the water inlet interface 111 and the connecting chamber 16; the second valve core 1322 is in the fourth position under the push of the second reset spring 1324, and the second valve core 1322 blocks the lower end opening of the second connecting channel 1323 to separate the water outlet interface 112 and the water outlet hole 114, and at the same time, the second valve core 1322 opens the upper end opening of the second connecting channel 1323 to connect the water outlet interface 112 and the connecting chamber 16. During the assembly of the filter element 20 and the socket 10, when the filter element 20 moves upward relative to the socket 10, it pushes the first valve core 1312 to move upward to the first position, and the first valve core 1312 opens the lower end opening of the first connecting channel 1313 to connect the water inlet interface 111 and the water inlet hole 113, and at the same time, the first valve core 1312 blocks the upper end opening of the first connecting channel 1313 to separate the water inlet interface 111 and the connecting chamber 16; at the same time, the filter element 20 pushes the second valve core 1322 to move upward to the third position, the second valve core 1322 opens the lower end opening of the second connecting channel 1323 to connect the water outlet interface 112 and the water outlet hole 114, and the second valve core 1322 blocks the upper end opening of the second connecting channel 1323 to separate the water outlet interface 112 and the connecting chamber 16.

[0148] The water heater assembly 1000 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0149] like Figure 37-Figure 41 As shown, the water heater assembly 1000 according to the embodiment of the present invention includes: a water heater 200 and a filter element assembly 100, the filter element assembly 100 is connected to the water heater 200, and the filter element assembly 100 is used to process the water flow. Therefore, the slow-release filter material of the filter element assembly 100 can better improve the user's water comfort. At the same time, the water sealing structure 22 in the filter element 20 of the filter element assembly 100 can better avoid water leakage when replacing the filter element 20, thereby better avoiding the trouble caused by the spilled water to the user, which is conducive to improving the user experience of the water heater assembly 1000.

[0150] According to the water heater assembly 1000 of the embodiment of the present invention, when the filter element 20 is assembled with the socket 10, the socket 10 drives the top rod 30 to push the water sealing structure 22 to open the water inlet 211, so that a connected water purification channel is formed in the filter element assembly 100, so that the water flowing through the filter element assembly 100 can be better purified, and the user's water use comfort can be better improved through the slow-release filter material; after the filter element 20 is separated from the socket 10, the water sealing structure 22 closes the water inlet 211, which can better prevent the stored water in the shell 21 from spilling out through the water inlet 211, thereby better preventing the spilled water from causing trouble to the user, which is beneficial to improving the user experience of the filter element assembly 100.

[0151] Specifically, the water heater 200 includes a housing 210 and a heat exchange component 220 disposed in the housing 210. The heat exchange component 220 is used to heat water. The heat exchange component 220 has an exchange inlet 230 and an exchange outlet 240, so that cold water can enter the heat exchange component 220 through the exchange inlet 230 and be discharged through the exchange outlet 240 after being heated, thereby achieving heating treatment of the water flow. Further, the water inlet interface 111 of the filter element assembly 100 is connected with the exchange outlet 240 of the heat exchange component 220, that is, the water flow heated by the heat exchange component 220 flows out through the exchange outlet 240 and then flows into the filter element assembly 100 through the water inlet interface 111 for purification treatment. For example, the slow-release filter material in the filter element assembly 100 can add flavor to the hot water, add water replenishing substances or remove residual chlorine in the hot water, etc., which can better improve the comfort of users using hot water.

[0152] Among them, the filter element assembly 100 can be completely arranged in the outer shell 210, so that the filter element assembly 100 can be better protected by the outer shell 210, and at the same time, the filter element assembly 100 can be avoided from being exposed, so that the appearance of the water heater assembly 1000 is neater; the filter element assembly 100 can also be completely arranged on the outside of the outer shell 210, which is convenient for the maintenance of the filter element assembly 100, such as facilitating the replacement of the filter element 20, etc.; of course, it is also possible that part of the filter element assembly 100 is arranged in the outer shell 210, such as the receiving seat 10 of the filter element assembly 100 is located in the outer shell 210, and the filter element 20 is arranged outside the outer shell 210, so that the exposed part of the filter element assembly 100 can be reduced while facilitating the replacement of the filter element 20, and the layout is reasonable.

[0153] Optionally, the water heater assembly 1000 further includes a water mixing valve 300, which is connected between the heat exchange component 220 and the filter element 20, that is, the water mixing valve 300 is connected to the downstream side of the heat exchange component 220 and to the upstream side of the filter element 20, and the water mixing valve 300 has a first inlet, a second inlet and a water mixing outlet, the second inlet is connected to the exchange outlet 240, and the water mixing outlet is connected to the water inlet interface 111. That is, the water flow entering the water mixing valve 300 through the first inlet is mixed with the water flow entering the water mixing valve 300 through the second inlet, that is, the hot water discharged from the heat exchange component 220, and then all enters the filter element 20 through the water mixing outlet and the water inlet interface 111 for purification, that is, the mixed water flow flowing out of the water mixing valve 300 is purified by the filter element assembly 100 and then flows to the downstream waterway, which can well improve the cleanliness of the mixed water flow.

[0154] Optionally, the water heater assembly 1000 further includes a water mixing valve 300, which is connected to the downstream side of the filter element assembly 100, that is, the hot water flowing out of the heat exchange component 220 flows into the water mixing valve 300 after being purified by the filter element assembly 100, and the water mixing valve 300 has a first inlet, a second inlet and a mixed water outlet, and the second inlet is connected to the water outlet interface 112. In other words, the hot water purified by the filter element assembly 100 enters the water mixing valve 300 through the water outlet interface 112 and the second water inlet and mixes with the water flow entering the water mixing valve 300 through the first inlet, that is, the filter element assembly 100 only needs to filter the hot water flowing out through the heat exchange component 220, which can better reduce the water flow purification amount of the filter element assembly 100, thereby better reducing the filter material loss, which is conducive to reducing the use cost of the filter element 20.

[0155] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0156] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0157] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A filter element assembly, characterized in that: include: A socket is formed with a water inlet interface and a water outlet interface; The filter element is detachably arranged on the socket, and the socket is rotatably engaged with the filter element. The filter element comprises: a shell, a water sealing structure and a filter material box arranged in the shell, a water inlet and a water outlet are formed on the shell, the water inlet is suitable for communicating with the water inlet interface, the water outlet is suitable for communicating with the water outlet interface, and the filter material box is used to hold slow-release filter material; A push rod, a limiting hole opposite to the water sealing structure is formed on the shell, and the push rod is suitable for passing through the limiting hole. When the filter element is assembled with the socket, the socket drives the push rod to push the water sealing structure to open the water inlet. After the filter element is separated from the socket, the water sealing structure closes the water inlet.

2. The filter element assembly according to claim 1, characterized in that: When the filter element is rotated relative to the receiving seat for assembly, the length of the push rod extending into the housing gradually increases.

3. The filter element assembly according to claim 1, characterized in that: The push rod is arranged on the socket. When the filter element is assembled with the socket, the socket pushes the water sealing structure toward one end of the water sealing structure through the push rod to move and open the water inlet.

4. The filter element assembly according to claim 3, characterized in that: The receiving seat and the ejector rod are integrally formed.

5. The filter element assembly according to claim 3, characterized in that: Part of the water inlet constitutes the limiting hole.

6. The filter element assembly according to claim 1, characterized in that: The push rod is movably arranged in the limiting hole along the axial direction of the filter element, and one end of the push rod away from the water sealing structure extends out of the shell. When the filter element is assembled with the socket, the socket drives the water sealing structure to move and open the water inlet by pushing the extended end of the push rod.

7. The filter element assembly according to claim 6, characterized in that: The limiting hole and the water inlet are both arranged on the end surface of the shell facing the receiving seat, and the limiting hole and the water inlet are arranged at intervals.

8. The filter element assembly according to claim 7, characterized in that: The water inlet and the limiting holes are both provided in plurality, and the water inlet and the limiting holes are arranged alternately and at intervals along the outer circumference of the water outlet.

9. The filter element assembly according to claim 6, characterized in that: The push rod includes a limiting portion and a matching portion. The limiting portion is arranged at one end of the matching portion facing the water sealing structure. The matching portion is movably arranged in the limiting hole along the axial direction of the filter element. The size of the limiting portion is larger than the size of the limiting hole at the smallest point.

10. The filter element assembly according to claim 9, characterized in that: The limiting hole includes a first limiting section and a second limiting section which are connected. The first limiting section is located at one end of the second limiting section facing the water sealing structure. The inner diameter of the first limiting section is larger than the inner diameter of the second limiting section and is used to accommodate the limiting part. The diameter of the limiting part is larger than the inner diameter of the second limiting section. The matching part is penetrated into the second limiting section.

11. The filter element assembly according to claim 1, characterized in that: There are multiple push rods, and the multiple push rods are evenly spaced and arranged along the circumference of the filter element.

12. The filter element assembly according to claim 1, characterized in that: The water sealing structure comprises: A water stop pad, the water stop pad and the water inlet are arranged opposite to each other along the axial direction of the filter element; A water-stop spring is connected to the water-stop pad. After the filter element is separated from the socket, the water-stop spring is used to push the water-stop pad to close the water inlet.

13. The filter element assembly according to claim 12, characterized in that: The diameter of the water stop spring increases in a direction away from the water stop pad.

14. The filter element assembly according to claim 12, characterized in that: A limiting groove is formed on the end surface of the water-stopping pad facing the limiting hole, and one end of the push rod facing the water-stopping pad is suitable for extending into the limiting groove.

15. The filter element assembly according to claim 12, characterized in that: A positioning groove is formed on the end surface of the water-stop pad facing the water-stop spring. The positioning groove is annular, and one end of the water-stop spring facing the water-stop pad is inserted into the positioning groove.

16. The filter element assembly according to claim 15, characterized in that: The water-stop spring includes a spring main body and a first matching part. The first matching part is connected to one end of the spring main body facing the water-stop pad. In the extension direction of the water-stop spring, the diameter of the first matching part remains unchanged. The first matching part is inserted into the positioning groove. In the direction away from the water-stop pad, the diameter of the spring main body gradually increases.

17. The filter element assembly according to claim 12, characterized in that: The water sealing structure also includes: A spring support member is arranged on the shell and is located on a side of the water stop pad away from the water inlet, and the axial ends of the water stop spring are respectively connected to the water stop pad and the spring support member.

18. The filter element assembly according to claim 17, characterized in that: A plurality of limiting convex ribs arranged at intervals along the outer circumference of the water-stop spring are formed on the end surface of the spring support member facing the water-stop pad, and the limiting convex ribs abut against the outer circumferential wall of one end of the water-stop spring facing the spring support member.

19. The filter element assembly according to claim 18, characterized in that: The water-stop spring includes a spring main body and a second matching part, wherein the second matching part is connected to one end of the spring main body toward the spring support member. In the extension direction of the water-stop spring, the diameter of the second matching part remains unchanged. The plurality of limiting ribs are located on the outer peripheral side of the second matching part and abut against the outer peripheral wall of the second matching part. In the direction toward the spring support member, the diameter of the spring main body gradually increases.

20. The filter element assembly according to claim 17, characterized in that: The filter material box is arranged on a side of the spring support member facing away from the water-stop pad, and the spring support member is supported on the filter material box.

21. The filter element assembly according to claim 1, characterized in that A holding cavity for holding slow-release filter material is formed in the filter material box, and a slow-release hole is formed on the filter material box, and water is suitable for flowing into or out of the holding cavity through the slow-release hole.

22. The filter element assembly according to claim 21, characterized in that The shell includes a water outlet column extending along the axial direction of the filter element, a water outlet channel connected to the water outlet interface is formed in the water outlet column, a water inlet channel located on the outer peripheral side of the water outlet column is also formed in the shell, the water sealing structure is arranged in the water inlet channel, the filter material box is located at one end of the water outlet column away from the socket, the water outlet column and the filter material box define a dissolution mixing chamber, the dissolution mixing chamber is connected to the water inlet channel and the water outlet channel, and the slow release hole is formed on the side wall of the filter material box facing the dissolution mixing chamber.

23. The filter element assembly according to claim 1, characterized in that A fixing structure is arranged in the shell, and the fixing structure includes a plurality of fixing convex ribs. The plurality of fixing convex ribs are arranged at intervals along the circumference of the filter box and abut against the outer peripheral wall of the filter box.

24. The filter element assembly according to claim 23, characterized in that A guide structure is provided on at least one of the outer peripheral wall of the filter box and the fixing rib.

25. The filter element assembly according to claim 1, characterized in that A water inlet hole and a water outlet hole are also formed in the socket, the water inlet hole is suitable for connecting the water inlet interface and the water inlet, the water outlet hole is suitable for connecting the water outlet interface and the water outlet, and a valve assembly is provided in the socket, and the valve assembly has a conducting state and a blocking state; Wherein, after the filter element is assembled with the socket, the valve assembly is in the conducting state, the water inlet is communicated with the water inlet interface, and the water outlet is communicated with the water outlet interface; After the filter element is separated from the socket, the valve assembly is in the cut-off state, the water inlet hole is isolated from the water inlet interface, and the water outlet hole is isolated from the water outlet interface.

26. The filter element assembly according to claim 25, characterized in that In the on state, the water inlet interface is isolated from the water outlet interface; in the off state, the water inlet interface is connected to the water outlet interface.

27. The filter element assembly according to claim 1, characterized in that A sliding rib is provided on one of the inner circumferential wall of the socket and the outer circumferential wall of the shell, and a sliding groove is provided on the other of the inner circumferential wall of the socket and the outer circumferential wall of the shell. The sliding rib and the sliding groove are clamped together by relative rotation of the socket and the filter element.

28. A water heater assembly, characterized in that: include: A water heater and a filter element assembly according to any one of claims 1 to 27, wherein the filter element assembly is connected to the water heater and is used for processing water flow.

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