Filter element assembly and water heater with same

Abstract

The invention discloses a filter element assembly and a water heater with the filter element assembly, and the filter element assembly comprises a filter element mounting seat which is provided with a water inlet interface and a water outlet interface; the filter element is detachably connected with the filter element mounting seat, the filter element comprises a shell, a central pipe and a filter material cover, the shell is provided with a water inlet hole and a water outlet hole, the central pipe is arranged in the shell, water passing holes are formed in the peripheral wall of the central pipe, and the filter material cover is arranged in the shell and located on the side, facing the water inlet, of the central pipe; the filter material cover, the outer wall surface of the central pipe and the inner wall surface of the shell are matched to define a filter material cavity, the filter material cavity is filled with a filter material, a central channel is defined on the inner side of the central pipe, the water stop piece is used for opening and closing the water inlet hole, and the first valve is used for opening and closing the water outlet hole. According to the filter element assembly disclosed by the invention, the water inlet hole and the water outlet hole can be opened or blocked according to use requirements, so that the use experience of a user is improved.

Description

Technical Field

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

[0002] Currently, consumers are paying more and more attention to their own health and are beginning to pay attention to the water quality when using water heaters for bathing. It is becoming more and more common to install filter cartridges for filtering water at the same time as installing water heaters. During the user's use, the water inlet and outlet holes of the filter cartridge may need to be blocked. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention is to provide a filter element assembly, wherein the filter element assembly can open or block a water inlet hole according to the use requirements.

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

[0005] The filter element assembly according to the first aspect of the present invention includes a filter element mounting seat, the filter element mounting seat has a water inlet interface and a water outlet interface; a filter element, the filter element is detachably connected to the filter element mounting seat, and the filter element includes: a shell, the shell has a water inlet hole and a water outlet hole, a center tube, the center tube is arranged in the shell, and a water hole is formed on the peripheral wall of the center tube, and a filter material cover is arranged in the shell and is located on the side of the center tube facing the water inlet, and the outer wall surface of the filter material cover and the center tube is connected to the inner wall surface of the shell The filter material cavity is defined by the cooperation between them, and the filter material cavity is filled with filter material. The inner side of the central tube defines a central channel, and the filter material cavity is connected with the water inlet interface through the water inlet hole, and the central channel is connected with the water outlet interface through the water outlet hole. The filter material cavity and the central channel are connected through the water hole. A water stop member is arranged in the shell and located at the water inlet hole. The water stop member is used to open and close the water inlet hole. A first valve is arranged at the water outlet hole and is used to open and close the water outlet hole.

[0006] According to the filter element assembly of the first aspect of the present invention, water flow can be filtered, and the water inlet and outlet holes can be opened or blocked according to usage needs, thereby improving the user experience of customers.

[0007] According to some embodiments of the present invention, the filter material is an adsorptive filter material, a displacement ion filter material or an anti-ion agglomeration filter material; and / or, the filter material is a sheet filter material, a granular filter material and / or a cotton filter material.

[0008] According to some embodiments of the present invention, the first valve is a one-way valve, and the first valve is configured to open the water outlet when the pressure in the housing reaches a preset pressure.

[0009] According to some embodiments of the present invention, a plurality of limiting ribs are provided on the bottom wall inside the shell, and the plurality of limiting ribs are arranged at intervals around the central tube, and the filter material cover has a limiting portion, one end of the central tube is limitedly matched with the limiting portion, and the other end of the central tube is limitedly matched with the inner side of the plurality of limiting ribs.

[0010] According to some embodiments of the present invention, the limiting portion is formed as a limiting groove, and the one end of the center tube is provided with a limiting ring protruding radially outward along the center tube, the limiting ring extends along the circumference of the center tube, and the limiting ring is limitedly fitted in the limiting groove.

[0011] According to some embodiments of the present invention, the filter material cover includes a cover body and a first tube portion, the cover body is a plate body arranged perpendicular to the axis of the center tube, the first tube portion is connected to the cover body and extends along the axial direction of the center tube, the inner side of the first tube portion defines an intermediate channel, the shell has a second tube portion, the second tube portion extends along the axial direction of the center tube and defines the water outlet on the inner side, the first tube portion and the second tube portion are sealingly sleeved, and the water outlet is connected to the center channel through the intermediate channel.

[0012] According to some embodiments of the present invention, a through hole penetrating the filter material cover is formed on the filter material cover, and the filter element further includes a filter screen, which is arranged on the filter material cover and covers the through hole.

[0013] According to some embodiments of the present invention, the filter element further includes: a positioning member and an elastic member, wherein the positioning member is fixed to the shell and is arranged on a side of the filter material cover facing the water inlet hole, and the elastic member is connected between the positioning member and the water stop member to push the water stop member to block the water inlet hole.

[0014] According to some embodiments of the present invention, when the filter element is separated from the filter element mounting seat, the elastic member pushes the water stop member to block the water inlet hole, and when the filter element is connected to the filter element mounting seat, the filter element mounting seat pushes the water stop member to open the water inlet hole.

[0015] According to some embodiments of the present invention, the filter element mounting seat includes a mounting seat body and a push rod, the mounting seat body is formed with the water inlet interface, the mounting seat body is detachably connected to the filter element, one end of the push rod is connected to the mounting seat body, and the other end of the push rod passes through the water inlet hole and extends into the shell to push the water stop member to open the water inlet hole.

[0016] According to some embodiments of the present invention, a guide hole penetrating the shell is formed on the shell, and the filter element includes: a push rod, one end of the push rod is fixed to the water stop member and the other end is passed through the guide hole, when the filter element is separated from the filter element mounting seat, the other end of the push rod extends out of the shell, and when the filter element is connected to the filter element mounting seat, the filter element mounting seat abuts against the push rod and pushes the water stop member through the push rod to open the water inlet hole.

[0017] According to some embodiments of the present invention, the guide hole includes a first hole segment and a second hole segment, the first hole segment is located on the side of the second hole segment facing the water inlet interface, the aperture of the first hole segment is smaller than the aperture of the second hole segment, and a limiting boss is provided at one end of the push rod connected to the water stop member, the cross-sectional size of the limiting boss is larger than the cross-sectional size of the first hole segment, and when the water stop member blocks the water inlet hole, the limiting boss cooperates in the second hole segment and blocks the first hole segment.

[0018] According to some embodiments of the present invention, the water inlet hole is arranged around the water outlet hole, and the water stop member extends in a ring shape along the circumference of the shell.

[0019] According to some embodiments of the present invention, an annular mounting groove is provided on a side of the water stop member facing away from the water inlet hole, and the elastic member is a spring, one end of the spring extends into the mounting groove and is fixedly connected to the water stop member.

[0020] According to some embodiments of the present invention, the positioning member extends in a ring shape along the circumference of the shell, a positioning groove is provided on the inner circumferential surface of the shell, and the outer circumferential edge of the positioning member fits in the positioning groove.

[0021] According to some embodiments of the present invention, the shell includes a first shell and a second shell, one end of the first shell is open, the second shell is arranged at the open end of the first shell, one end of the second shell facing the first shell is open and is detachably connected to the first shell, the center tube is arranged in the first shell, and the water inlet hole and the water outlet hole are both formed in the second shell.

[0022] According to some embodiments of the present invention, a valve assembly is provided in the filter element mounting seat, and the valve assembly has an on state and a off state; wherein, after the filter element is assembled with the filter element mounting seat, the valve assembly is in the on state, the water inlet hole is communicated with the water inlet interface, and the water outlet hole is communicated with the water outlet interface; after the filter element is separated from the filter element mounting seat, the valve assembly is in the 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.

[0023] According to some embodiments of the present invention, when the filter element is assembled with the filter element mounting seat, the filter element is in contact with and cooperates with the valve assembly so that the valve assembly switches from the cut-off state to the on state.

[0024] 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.

[0025] The water heater according to the second aspect of the present invention comprises the filter element assembly according to the first aspect of the present invention.

[0026] According to the water heater of the second aspect of the present invention, by setting the filter element assembly according to the first aspect of the present invention, the water flowing into and / or into the water heater can be filtered, thereby improving the water quality of the water flowing out of the water heater and enhancing the user experience.

[0027] 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

[0028] Figure 1 is an exploded view of a filter element assembly according to an embodiment of the present invention;

[0029] Figure 2 yes Figure 1 A cross-sectional view of the filter element assembly shown in ;

[0030] Figure 3 yes Figure 2 An exploded view of the filter element assembly shown in ;

[0031] Figure 4 yes Figure 2 Another exploded view of the filter element assembly shown in;

[0032] Figure 5 yes Figure 1 A top view of the filter element shown in ;

[0033] Figure 6 yes Figure 1 A bottom view of the filter element mounting seat shown in ;

[0034] Figure 7 yes Figure 4 A top view of the filter cover shown in ;

[0035] Figure 8 yes Figure 7 A cross-sectional view of the filter cover shown in ;

[0036] Fig. 9 is an exploded view of a filter element assembly according to another embodiment of the present invention;

[0037] Fig.10 yes Fig. 9 A cross-sectional view of the filter element assembly shown in ;

[0038] Fig.11 yes Fig.10 An exploded view of the filter element assembly shown in ;

[0039] Fig.12 yes Fig.10 Another exploded view of the filter element assembly shown in;

[0040] Fig.13 yes Fig. 9 A top view of the filter element shown in ;

[0041] Fig.14 yes Fig. 9 A bottom view of the filter element mounting seat shown in ;

[0042] Fig.15 is a schematic diagram of a water heater according to an embodiment of the present invention;

[0043] Fig.16 is a schematic diagram of a water heater according to another embodiment of the present invention;

[0044] Fig.17 is a schematic diagram of a filter element mounting seat, a valve assembly and a filter element according to an embodiment of the present invention, wherein the valve assembly is in a conducting state;

[0045] Fig.18 yes Fig.17 Another schematic diagram of the filter element mounting seat and the valve assembly shown in , in which the valve assembly is in a cut-off state;

[0046] Fig.19 is a schematic diagram of a filter element mounting seat, a valve assembly and a filter element according to another embodiment of the present invention, in which the valve assembly is in a conducting state;

[0047] Fig. 20 yes Fig.19 Another schematic diagram of the filter element mounting seat and the valve assembly shown in FIG. 1 , in which the valve assembly is in the shut-off state.

[0048] Reference numerals:

[0049] 1000. Water heater;

[0050] 100. Filter element assembly;

[0051] 10. filter element; 11. housing; 111. water inlet hole; 112. water outlet hole; 1121. first valve; 11211. fourth sealing groove; 11212. fourth sealing ring; 113. positioning groove; 114. first housing; 1141. third sealing groove; 1142. third sealing ring; 115. second housing; 1151. fifth sealing groove; 1152. fifth sealing ring; 116. second pipe; 1161. sixth sealing groove; 1162. sixth sealing ring; 117. limiting convex rib; 118. guide hole; 1181. first hole section; 1182. second hole section;

[0052] 12. Center tube; 121. Water hole; 122. Center channel; 13. Filter cover; 131. Through hole; 132. Filter screen; 133. Cover body; 1331. First sealing groove; 1332. First sealing ring; 134. First tube; 1341. Second sealing groove; 1342. Second sealing ring; 135. Limiting part; 14. Filter cavity; 15. Water stop; 151. Mounting groove; 16. Positioning part; 161. Positioning flange; 162. Limiting flange; 17. Elastic part; 18. Push rod; 181. Limiting boss; 19. Sliding bar;

[0053] 20. Filter element mounting seat; 21. Mounting seat body; 211. Water inlet interface; 212. Water outlet interface; 213. Slide rail; 22. Push rod; 23. First mounting cavity; 24. Second mounting cavity; 25. Communication cavity;

[0054] 30. Valve assembly; 31. First stop valve; 311. First valve seat; 3111. First communication channel; 31111. First boss; 312. First valve core; 3121. Second boss; 3122. Seventh sealing groove; 3123. Seventh sealing ring; 3124. Eighth sealing groove; 3125. Eighth sealing ring; 313. First elastic member; 32. Second stop valve; 321. Second valve seat; 3211. Second communication channel; 32111. Third boss; 322. Second valve core; 3221. Fourth boss; 3222. Ninth sealing groove; 3223. Ninth sealing ring; 3224. Tenth sealing groove; 3225. Tenth sealing ring; 323. Second elastic member;

[0055] 200, housing;

[0056] 300, liner;

[0057] 400, water inlet pipe;

[0058] 500. Water outlet pipe. DETAILED DESCRIPTION

[0059] 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.

[0060] Reference below Figure 1-Figure 16 A filter element assembly 100 according to an embodiment of the first aspect of the present invention is described.

[0061] like Figure 1-Figure 4 As shown, the filter element assembly 100 according to the first embodiment of the present invention comprises: a filter element mounting seat 20 and a filter element 10. The filter element mounting seat 20 has a water inlet interface 211 and a water outlet interface 212, the filter element 10 is detachably connected to the filter element mounting seat 20, and the filter element 10 comprises: a housing 11, a central tube 12, a filter material cover 13, a water stop 15 and a first valve 1121.

[0062] Specifically, the housing 11 has a water inlet 111 and a water outlet 112, the central tube 12 is disposed in the housing 11, a water hole 121 is formed on the peripheral wall of the central tube 12, and the filter cover 13 is disposed in the housing 11 and is located on the side of the central tube 12 facing the water inlet (for example, Figure 2 The filter material chamber 14 is filled with filter material. The inner side of the center tube 12 defines a center channel 122. The filter material chamber 14 is connected with the water inlet interface 211 through the water inlet hole 111. The center channel 122 is connected with the water outlet interface 212 through the water outlet hole 112. The filter material chamber 14 and the center channel 122 are connected through the water hole 121. The water stop member 15 is arranged in the shell 11 and is located at the water inlet hole 111. The water stop member 15 is used to open and close the water inlet hole 111. The first valve 1121 is arranged at the water outlet hole 112 and is used to open and close the water outlet hole 112.

[0063] Among them, the filter element mounting seat 20 is connected to the water flow to be filtered, the water flow to be filtered flows into the filter element 10 from the water inlet interface 211, and the filtered water flows out of the filter element assembly 100 from the water outlet interface 212. The filter element 10 and the filter element mounting seat 20 are detachably connected to facilitate the maintenance or replacement of the filter element 10. The filter material cavity 14 defined by the outer wall surface of the filter material cover 13, the center tube 12 and the inner wall surface of the shell 11 can prevent the filter material from being dispersed by the water flow, thereby ensuring the filtering effect.

[0064] In daily use by users, due to different usage needs, users need to switch the water inlet hole 111 and the water outlet hole 112 between the open and closed states. For example, when the user uses the filter element assembly 100 to filter the water flow, or the user cleans the filter element 10, the water inlet hole 111 and the water outlet hole 112 need to be opened so that the filter element 10 can filter the water flow normally. When the user does not plan to use the filter element assembly 100 for a long time, the water inlet hole 111 and the water outlet hole 112 can be opened to discharge the water from the water inlet hole 111 and the water outlet hole 112, thereby reducing the long-term accumulation of water in the filter element 10 to cause deterioration.

[0065] When the user is preparing to replace or repair the filter element 10, the water inlet hole 111 and the water outlet hole 112 can be closed to prevent the residual water in the filter element 10 from splashing onto the ground or the user through the water inlet hole 111 and the water outlet hole 112. When the user is preparing to place the removed filter element 10 for a long time, the water inlet hole 111 and the water outlet hole 112 can be closed to prevent impurities in the external environment from entering the filter element 10 through the water inlet hole 111 and the water outlet hole 112 and contaminating the filter element 10.

[0066] In this way, various usage needs of users can be met.

[0067] When the user uses the filter element assembly 100 to filter the water flow, the filter element 10 is installed on the filter element mounting seat 20. At this time, the water inlet hole 111 and the water outlet hole 112 are in an open state. Then, the water flow to be filtered is connected to the water inlet interface 211. The water flow enters the filter element assembly 100 from the water inlet interface 211, and the water flow passes through the water inlet hole 111 into the filter material cavity 14. The filter material in the filter material cavity 14 filters the water flow. Then, the water flow enters the central channel 122 in the central tube 12 from the water hole 121, passes through the water outlet hole 112 through the central channel 122, enters the water outlet interface 212, and flows out of the filter element assembly 100 from the water outlet interface 212. In this way, the filtering process of the water flow in the filter element assembly 100 is completed.

[0068] The filter element assembly 100 according to the first embodiment of the present invention can filter water flow, and can open or block the water inlet 111 and the water outlet 112 according to user needs, thereby improving the user experience.

[0069] In some embodiments of the present invention, the filter material is an adsorptive filter material, a displacement ion filter material or an anti-ion agglomeration filter material; and / or, the filter material is a sheet filter material, a granular filter material and / or a cotton filter material. For example, the filter material can be one or more of PP cotton (Poly series artificial chemical fiber), activated carbon, magnet, resin, TAC (Template Assisted Crystallization module assisted crystallization), ASP (aspartic acid), MSAP solid anti-scaling slow-release material. In this way, the filter element 10 can filter impurities of different components in the water to meet the different filtering requirements of different users for water. For example, the filter element 10 can filter large-sized impurities in the water, and can also filter ions in the water that are not beneficial to the human body. For example, the filter element 10 can filter out chlorine ions and other ions in the water that irritate the skin, reduce the probability of users having symptoms such as skin itching due to water quality after bathing, and improve the comfort level of users bathing with the water heater 1000. In addition, the above-mentioned filter material has a long service life.

[0070] When the filter material is in a cotton-like form, the shape of the filter material can be changed according to the shape of the accommodating space, thereby facilitating the installation of the filter material in the filter material cavity 14 .

[0071] When the filter material is in the form of sheets and / or particles, it is necessary to ensure that the smallest cross-sectional dimension of the filter material monomer is larger than the maximum diameter of the water hole 121 and the cross-sectional shape of the filter material monomer is different from the shape of the water hole 121. The sheets and particles have less obstruction to the water flow. In this way, the water flow efficiency in the filter element 10 can be guaranteed. At the same time, it is prevented that the filter material blocks the water hole 121 and the filter material enters the central tube 12, thereby affecting the normal filtration process of the filter element 10, thereby ensuring the reliability of the filter element 10 during operation.

[0072] In some embodiments of the present invention, the first valve 1121 is a one-way valve, and the first valve 1121 is configured to open the water outlet 112 when the pressure in the housing 11 reaches a preset pressure. In this way, when the filter element assembly 100 filters water flow, the one-way valve can open the water outlet 112 when the pressure in the housing 11 is greater than the preset pressure under the action of the water flow, so that the filter element assembly 100 can work normally. When the filter element assembly 100 is not working, no water flows into the filter element 10, and the pressure in the housing 11 is less than the preset pressure. The one-way valve closes the water outlet 112 to seal the water outlet 112, thereby preventing impurities in the external environment from entering the filter element 10 from the water outlet 112. When the filter element 10 is removed from the filter element mounting seat 20, it can prevent the water in the filter element 10 from flowing out of the water outlet 112 to wet the ground or splash onto the operator.

[0073] In some embodiments of the present invention, when the filter element assembly 100 is filled with water and the water inlet pressure of the water inlet interface 211 is greater than 0.05Mpa, the one-way valve opens the water outlet hole 112. In this way, the probability of water in the water outlet interface 212 flowing back into the water outlet hole 112 when the one-way valve opens the water outlet hole 112 can be reduced, thereby ensuring that the filter element assembly 100 can work normally.

[0074] In some embodiments of the present invention, Figure 4 , Figure 8 and Fig.12 As shown, a plurality of limiting ribs 117 are arranged on the bottom wall of the housing 11, and the plurality of limiting ribs 117 are arranged at intervals around the central tube 12. The filter cover 13 has a limiting portion 135, and one end of the central tube 12 is limitedly matched with the limiting portion 135, and the other end of the central tube 12 is limitedly matched with the inner side of the plurality of limiting ribs 117. The plurality of limiting ribs 117 can limit the displacement of one end of the central tube 12 toward the bottom wall of the cavity, and the limiting portion 135 can limit the displacement of one end of the central tube 12 away from the bottom wall of the cavity by matching with the upper end of the central tube 12. In this way, when water flows through the filter material to impact the central tube 12, the limiting ribs 117 and the limiting portion 135 prevent the displacement of the central tube 12 from both ends of the central tube 12, thereby reducing the probability of excessive displacement of the central tube 12 caused by water flow impacting the central tube 12, and at the same time, reducing the probability of the central tube 12 squeezing the filter material to cause the filter material to flee to other parts, thereby improving the reliability of the filter element 10 during operation.

[0075] In some embodiments of the present invention, Figure 4 , Figure 8 and Fig.12 As shown, the limiting portion 135 is formed as a limiting groove, and a limiting ring protruding outward along the radial direction of the central tube 12 is provided at one end of the central tube 12, and the limiting ring extends along the circumference of the central tube 12, and the limiting ring is limitedly fitted in the limiting groove. When the central tube 12 is displaced, the inner wall of the limiting groove will abut against the outer wall of the central tube 12, thereby preventing the displacement of the central tube 12. In addition, when assembling, the central tube 12 and the limiting groove can also play a positioning role, further reducing the difficulty of assembly and improving assembly efficiency.

[0076] In some embodiments of the present invention, Figure 3 , Figure 7 and Figure 8As shown, the filter material cover 13 includes a cover body 133 and a first tube portion 134. The cover body 133 is a plate body arranged perpendicular to the axis of the central tube 12. The first tube portion 134 is connected to the cover body 133 and extends along the axial direction of the central tube 12. The inner side of the first tube portion 134 defines an intermediate channel. The shell 11 has a second tube portion 116. The second tube portion 116 extends along the axial direction of the central tube 12 and defines a water outlet 112 on the inner side. The first tube portion 134 and the second tube portion 116 are sealed and sleeved, and the water outlet 112 is connected to the central channel 122 through the intermediate channel. After the filter material filters the water flow, the water flows into the central tube 12 from the water hole 121, then enters the middle channel and flows out from the water outlet 112, thereby completing the filtering process of the filter element 10 on the water flow, wherein the sealing sleeve connection between the first tube portion 134 and the second tube portion 116 can isolate the unfiltered water from the filtered water, preventing the water from flowing out from the water outlet 112 without being filtered, thereby ensuring the filtering effect of the filter element 10.

[0077] In some embodiments of the present invention, Figure 2 , Figure 7 and Figure 8 As shown, a through hole 131 penetrating the filter cover 13 is formed on the filter cover 13, and the filter element 10 further includes a filter screen 132, which is arranged on the filter cover 13 and covers the through hole 131. That is to say, the filter chamber 14 is connected with the water inlet hole 111 through the through hole 131, so that the water flow entering from the water inlet hole 111 passes through the through hole 131 and enters the filter chamber 14, and at the same time, the filter screen 132 filters the water flow passing through the through hole 131, and blocks large particles of impurities in the water flow from entering the filter chamber 14, so as to prevent large particles of impurities from entering the filter material and reducing the filtering effect of the filter material, thereby improving the filtering effect of the filter element 10 and the service life of the filter material.

[0078] In some embodiments of the present invention, the filter screen 132 is made of stainless steel. Stainless steel has low cost and stable chemical properties, which can reduce the production cost of the filter element 10 and increase the service life of the filter screen 132.

[0079] In some embodiments of the present invention, the size of the filter screen 132 is 30-100 mesh, so that the filtering effect of the filter screen 132 can be guaranteed without affecting the speed of water flowing through the filter screen 132. In addition, the filter screen 132 can also prevent the filter material from escaping from the mesh holes of the filter material.

[0080] In some embodiments of the present invention, Figure 2 , Figure 4 , Fig.10 and Fig.12As shown, the filter element 10 also includes: a positioning member 16 and an elastic member 17. The positioning member 16 is fixed to the housing 11 and is arranged on the side of the filter material cover 13 facing the water inlet hole 111. The elastic member 17 is connected between the positioning member 16 and the water stop member 15 to push the water stop member 15 to block the water inlet hole 111. Among them, the positioning member 16 provides a force point for the elastic member 17. When the water stop member 15 opens the water inlet hole 111, a force greater than the elastic force of the elastic member 17 is applied to the water stop member 15 to move the water stop member 15 and the elastic member 17 toward the positioning member 16, so that the water inlet hole 111 is in an open state. It should be noted that the force can be the pressure of the water flow or other external forces. When the water stop member 15 closes the water inlet hole 111, the force acting on the water stop member 15 is removed, and the water stop member 15 moves toward the water inlet hole 111 and blocks the water inlet hole 111 under the push of the elastic force of the elastic member 17. Thus, the process of the water stopper 15 opening and closing the water inlet hole 111 is completed.

[0081] In some embodiments of the present invention, when the filter element 10 is separated from the filter element mounting seat 20, the elastic member 17 pushes the water stop member 15 to block the water inlet hole 111. When the filter element 10 is connected to the filter element mounting seat 20, the filter element mounting seat 20 pushes the water stop member 15 to open the water inlet hole 111. In this way, the filter element assembly 100 can filter the water flow normally. When the filter element 10 is removed from the filter element mounting seat 20, the filter element mounting seat 20 no longer applies force to the water stop member 15. The water stop member 15 blocks the water inlet hole 111 under the push of the elastic member 17, thereby preventing the water in the filter element 10 from flowing out of the filter element 10 from the water inlet hole 111.

[0082] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the filter element mounting seat 20 includes a mounting seat body 21 and a push rod 22, the mounting seat body 21 is formed with a water inlet interface 211, the mounting seat body 21 is detachably connected to the filter element 10, one end of the push rod 22 is connected to the mounting seat body 21, and the other end of the push rod 22 passes through the water inlet hole 111 and extends into the housing 11 to push the water stop 15 to open the water inlet hole 111. In this way, the probability of the water stop 15 opening the water inlet hole 111 when the filter element 10 is connected to the filter element mounting seat 20 can be increased, thereby improving the reliability of the filter element assembly 100 when working.

[0083] In some embodiments of the present invention, Figure 4 As shown, the mounting seat body 21 is integrally formed with the push rod 22. In this way, when the filter element mounting seat 20 and the filter element 10 are assembled, the push rod 22 and the mounting seat body 21 are assembled together, which simplifies the operation process during assembly, thereby improving assembly efficiency.

[0084] In some embodiments of the present invention, Figure 2 , Figure 5 and Figure 6As shown, the filter element 10 is rotatably connected to the filter element mounting seat 20, and the water inlet hole 111 is an arc-shaped hole extending along the circumference of the housing 11. The rotatable connection is convenient to operate and the connection is tight, which can make the installation and removal of the filter element 10 more convenient and ensure the reliability of the connection between the filter element 10 and the filter element mounting seat 20.

[0085] The arc-shaped water inlet hole 111 can provide an avoidance space for the top rod 22 extending into the water inlet hole 111. During the relative rotation of the filter element mounting seat 20 and the filter element 10 to achieve the clamping connection, the filter element mounting seat 20 can drive the top rod 22 to move in the arc-shaped water inlet hole 111, so that the filter element 10 and the filter element mounting seat 20 can be assembled. At the same time, as the filter element mounting seat 20 and the filter element 10 are continuously clamped, the top rod 22 will push the water stop member 15 so that the water stop member 15 compresses the elastic member 17 to open the water inlet hole 111. When the filter element 10 needs to be removed from the filter element mounting seat 20, the filter element 10 and the filter element mounting seat 20 are relatively rotated in the opposite direction of assembly to release the clamping connection, and the filter element 10 can be removed from the filter element mounting seat 20.

[0086] In some embodiments of the present invention, Figure 1 As shown, a sliding rib 19 is formed on the outer side of the filter element 10, and a sliding rail 213 is formed on the inner wall of the filter element mounting seat 20. The filter element 10 and the filter element mounting seat 20 are rotationally connected through the cooperation of the sliding rib 19 and the sliding rail 213. In the process of rotationally clamping the sliding rib 19 and the sliding rail 213, the cooperation between the sliding rib 19 and the sliding rail 213 can play a guiding role, thereby reducing the difficulty of operation during rotational clamping and improving assembly efficiency.

[0087] In some embodiments of the present invention, Figure 6 As shown, there are multiple push rods 22, and the multiple push rods 22 are arranged at intervals along the circumference of the housing 11. For example, there may be two, three or four push rods 22, so that each push rod 22 can push the water stop member 15 to open the water inlet hole 111, which can increase the probability that the water stop member 15 opens the water inlet hole 111 when the filter element 10 and the filter element mounting seat 20 are connected, thereby improving the reliability of the filter element assembly 100 when working. At the same time, multiple push rods 22 apply a force to the water stop member 15 in the circumferential direction, which can make the gap between the water stop member 15 and the water inlet hole 111 more uniform, so that the water flow impact force on the water stop member 15 is more uniform, thereby reducing the probability of failure of the connection between the water stop member 15 and the elastic member 17, and reducing the failure rate of the filter element assembly 100.

[0088] In some embodiments of the present invention, Figure 9-Figure 14As shown, a guide hole 118 penetrating the housing 11 is formed on the housing 11, and the filter element 10 includes: a push rod 18, one end of the push rod 18 is fixed to the water stop member 15 and the other end is inserted into the guide hole 118. When the filter element 10 is separated from the filter element mounting seat 20, the other end of the push rod 18 extends out of the housing 11. When the filter element 10 is connected to the filter element mounting seat 20, the filter element mounting seat 20 abuts against the push rod 18 and pushes the water stop member 15 to open the water inlet hole 111 through the push rod 18. In this way, when the filter element 10 is installed on the filter material mounting seat, the cooperation between the push rod 18 and the mounting seat body 21 is simpler, thereby reducing the difficulty of assembly and improving the assembly efficiency. At the same time, the guide hole 118 can provide guidance for the displacement of the push rod 18, increasing the probability that the mounting seat body 21 pushes the push rod 18 to make the water stop member 15 open the water inlet hole 111, thereby improving the reliability of the filter element assembly 100 during use.

[0089] In some embodiments of the present invention, Fig.11 and Fig.12 As shown, the guide hole 118 includes a first hole section 1181 and a second hole section 1182, the first hole section 1181 is located on the side of the second hole section 1182 facing the water inlet interface 211, the aperture of the first hole section 1181 is smaller than the aperture of the second hole section 1182, and the end of the push rod 18 connected to the water stop member 15 is provided with a limiting boss 181, the cross-sectional size of the limiting boss 181 is larger than the cross-sectional size of the first hole section 1181, and when the water stop member 15 blocks the water inlet hole 111, the limiting boss 181 cooperates in the second hole section 1182 and blocks the first hole section 1181. In this way, during the installation and disassembly of the filter element 10 and the filter element mounting seat 20, the inner wall of the second hole section 1182 can prevent the push rod 18 from detaching from the filter element 10. At the same time, the second hole section 1182 provides a placement space for the limiting boss 181, and the push rod 18 will not block the water stop member 15 from blocking the water inlet hole 111. In addition, the limiting boss 181 can increase the contact area between the push rod 18 and the water stop member 15, making the connection between the push rod 18 and the water stop member 15 more stable.

[0090] In some embodiments of the present invention, Fig.13 As shown, there are multiple push rods 18, and the multiple push rods 18 are arranged at intervals along the circumference of the housing 11. For example, the number of push rods 18 can be two, three or four, so that each push rod 18 can push the water stop member 15 to open the water inlet hole 111, which can increase the probability that the water stop member 15 opens the water inlet hole 111 when the filter element 10 and the filter element mounting seat 20 are connected, thereby improving the reliability of the filter element assembly 100 when working. At the same time, multiple push rods 18 apply force to the water stop member 15 in the circumferential direction, which can make the gap between the water stop member 15 and the water inlet hole 111 more uniform, so that the water flow impact force on the water stop member 15 is more uniform, thereby reducing the probability of failure of the connection between the water stop member 15 and the elastic member 17, and reducing the failure rate of the filter element assembly 100.

[0091] In some embodiments of the present invention, Figure 3 , Figure 5 , Fig.11 and Fig.13 As shown, the water inlet hole 111 is arranged around the water outlet hole 112, and the water stopper 15 extends in a ring shape along the circumference of the housing 11. In this way, the filter element assembly 100 has a high degree of symmetry, and during the operation of the filter element assembly 100, the impact force of the water flow on the filter element assembly 100 can be distributed more evenly, so that the filter element assembly 100 is more stable during operation, thereby increasing the service life of the filter element assembly 100.

[0092] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the side of the water stop 15 facing away from the water inlet hole 111 (eg Figure 3 The lower side of the water stop 15 is provided with an annular mounting groove 151, and the elastic member 17 is a spring, one end of which extends into the mounting groove 151 and is fixedly connected to the water stop 15. The spring is easy to install and has low cost, which can improve assembly efficiency and reduce production costs. The mounting groove 151 can prevent the spring from escaping from the mounting groove 151, improve the stability of the connection between the spring and the water stop 15, and the mounting groove 151 can play a positioning role during assembly, thereby improving assembly accuracy.

[0093] In some embodiments of the present invention, the water stop member 15 is made of silicone rubber, EPDM rubber, NBR rubber, fluororubber or the like. Thus, the water stop member 15 is elastic and can achieve sealing between the water stop member 15 and the outer periphery of the water inlet hole 111 when the water inlet hole 111 is blocked.

[0094] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the positioning member 16 extends in a ring shape along the circumference of the housing 11, and a positioning groove 113 is provided on the inner circumferential surface of the housing 11, and the outer circumference of the positioning member 16 fits in the positioning groove 113. The positioning groove 113 can prevent the outer circumference of the positioning member 16 from escaping from the positioning groove 113, thereby achieving the fixing of the positioning member 16 on the housing 11, and the positioning groove 113 can play a positioning role during assembly, thereby improving the assembly accuracy.

[0095] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the outer periphery of the positioning member 16 is provided along the length direction of the housing 11 (for example Figure 2The positioning flange 161 extends in the vertical direction (in the vertical direction shown in FIG. 1 ), and the positioning flange 161 is matched in the positioning groove 113. The contact area between the positioning flange 161 and the positioning groove 113 is large, so that the matching between the positioning flange 161 and the positioning groove 113 can be more stable, and the positioning flange 161 and the positioning groove 113 can be matched with higher position accuracy, so that the positioning member 16 is more stable on the housing 11, and the assembly accuracy of the positioning member 16 and the housing 11 is improved.

[0096] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the inner circumference of the positioning member 16 is provided with a limiting flange 162 extending toward the water stop member 15, and the elastic member 17 is a spring, which is sleeved on the radially outer side of the limiting flange 162. By providing the limiting flange 162, the limiting flange 162 can prevent the spring from detaching from the positioning member 16, thereby making the connection between the spring and the positioning member 16 more stable. At the same time, the limiting flange 162 can also play a positioning role during the assembly process, thereby improving the assembly accuracy.

[0097] In some embodiments of the present invention, Figure 4 and Fig.12 As shown, the housing 11 includes a first housing 114 and a second housing 115, one end of the first housing 114 is open, the second housing 115 is arranged at the open end of the first housing 114, one end of the second housing 115 facing the first housing 114 is open and detachably connected to the first housing 114, the central tube 12 is arranged in the first housing 114, and the water inlet 111 and the water outlet 112 are both formed in the second housing 115. In this way, when the parts in the filter element 10 are damaged, the first housing 114 and the second housing 115 can be disassembled to repair and replace the parts in the filter element 10, thereby improving the service life of the filter element 10.

[0098] In some embodiments of the present invention, Figure 2 and Figure 4 As shown, a first sealing groove 1331 is formed on the cover body 133, and a first sealing ring 1332 is arranged in the first sealing groove 1331. The first sealing groove 1331 extends around the filter material cover 13, and the first sealing ring 1332 abuts between the groove wall of the first sealing groove 1331 and the inner circumferential wall of the shell 11. By setting the first sealing groove 1331, a layout space can be provided for the first sealing ring 1332, thereby reducing the probability of the first sealing ring 1332 being displaced between the filter material cover 13 and the inner circumferential wall of the shell 11. By setting the first sealing ring 1332, sealing between the filter material cover 13 and the inner circumferential wall of the shell 11 can be achieved, thereby preventing water from entering the filter material cavity 14 without being filtered by the filter screen 132, thereby ensuring the filtering effect of the filter element 10 and improving the service life of the filter element 10.

[0099] In some embodiments of the present invention, Figure 3and Figure 4 As shown, a second sealing groove 1341 is formed on the outer peripheral wall of the first tube portion 134, and the second sealing groove 1341 extends around the first tube portion 134. A second sealing ring 1342 is provided in the second sealing groove 1341, and the second sealing ring 1342 abuts between the groove wall of the second sealing groove 1341 and the inner wall surface of the second tube portion 116. By setting the second sealing groove 1341, an arrangement space can be provided for the second sealing ring 1342, thereby reducing the probability of displacement of the second sealing ring 1342 between the first tube portion 134 and the second tube portion 116. By setting the second sealing ring 1342, the sealing between the first tube portion 134 and the second tube portion 116 can be achieved, thereby ensuring the filtering effect of the filter element 10.

[0100] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, a third sealing groove 1141 is formed on the inner wall surface of the first shell 114, and the third sealing groove 1141 extends around the inner wall surface of the first shell 114. A third sealing ring 1142 is provided in the third sealing groove 1141, and the third sealing ring 1142 abuts between the groove wall of the third sealing groove 1141 and the outer wall surface of the second shell 115. By setting the third sealing groove 1141, an arrangement space can be provided for the third sealing ring 1142, thereby reducing the probability of the third sealing ring 1142 being displaced between the first shell 114 and the second shell 115. By setting the third sealing ring 1142, the sealing between the first shell 114 and the second shell 115 can be achieved, thereby reducing the probability of water in the filter element 10 flowing out from the gap between the first shell 114 and the second shell 115. At the same time, the probability of external impurities entering the filter element 10 from the gap between the first shell 114 and the second shell 115 is reduced, thereby improving the user experience.

[0101] In some embodiments of the present invention, Figure 2 and Figure 4 As shown, a fourth sealing groove 11211 is formed on the outer peripheral wall of the first valve 1121, and the fourth sealing groove 11211 extends around the first valve 1121. A fourth sealing ring 11212 is arranged in the fourth sealing groove 11211, and the fourth sealing ring 11212 abuts between the groove wall of the fourth sealing groove 11211 and the inner wall surface of the second pipe part 116. By providing the fourth sealing groove 11211, a layout space can be provided for the fourth sealing ring 11212, and the probability of displacement of the fourth sealing ring 11212 between the first valve 1121 and the second pipe part 116 can be reduced. By providing the fourth sealing ring 11212, the sealing between the first valve 1121 and the second pipe part 116 can be achieved, thereby reducing the probability of water flowing out from the gap between the one-way valve and the second pipe part 116, and improving the reliability of the one-way water outlet of the water outlet hole 112 of the filter element 10.

[0102] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the outer peripheral wall of the second housing 115 is formed with a fifth sealing groove 1151, the fifth sealing groove 1151 extends around the second housing 115, and a fifth sealing ring 1152 is arranged in the fifth sealing groove 1151, and the fifth sealing ring 1152 abuts between the groove wall of the fifth sealing groove 1151 and the inner wall surface of the filter element mounting seat 20. By providing the fifth sealing groove 1151, a layout space can be provided for the fifth sealing ring 1152, reducing the probability of displacement of the fifth sealing ring 1152 between the second housing 115 and the filter element mounting seat 20. By providing the fifth sealing ring 1152, the sealing between the second housing 115 and the filter element mounting seat 20 can be achieved, that is, the sealing between the filter element 10 and the filter element mounting seat 20 can be achieved, thereby reducing the probability of water flowing out from the gap between the filter element mounting seat 20 and the filter element 10, and improving the user experience.

[0103] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the outer peripheral wall of the second tube portion 116 is formed with a sixth sealing groove 1161, the sixth sealing groove 1161 extends around the second tube portion 116, and a sixth sealing ring 1162 is arranged in the sixth sealing groove 1161, and the sixth sealing ring 1162 abuts between the groove wall of the sixth sealing groove 1161 and the inner wall surface of the installation groove 151 of the filter element 10. By providing the sixth sealing groove 1161, a layout space can be provided for the sixth sealing ring 1162, reducing the probability of displacement of the sixth sealing ring 1162 between the second tube portion 116 and the filter element installation seat 20. By providing the sixth sealing ring 1162, the sealing between the second tube portion 116 and the filter element installation seat 20 can be achieved, reducing the probability of water flowing out of the water outlet 112 without being filtered, thereby ensuring the filtering effect of the filter element 10.

[0104] In some embodiments of the present invention, the axes of the central tube 12, the filter material cover 13 and the housing 11 coincide with each other, so that the structure of the filter element 10 has a high degree of symmetry, which can improve the stability of the filter element 10 during use.

[0105] In some embodiments of the present invention, Figure 17-Figure 20 As shown, a valve assembly 30 is provided in the filter element mounting seat 20, and the valve assembly 30 has a conducting state and a shutoff state; wherein, after the filter element 10 and the filter element mounting seat 20 are assembled, the valve assembly 30 is in the conducting state, the water inlet hole 111 is connected with the water inlet interface 211, and the water outlet hole 112 is connected with the water outlet interface 212. At this time, the filter element 10 can filter the water flow entering the filter element 10 from the water inlet interface 211, and the filtered water flow flows out of the filter element assembly 100 from the water outlet interface 212.

[0106] After the filter element 10 is separated from the filter element mounting seat 20, the valve assembly 30 is in a cut-off state, the water inlet hole 111 is separated from the water inlet interface 211, and the water outlet hole 112 is separated from the water outlet interface 212. That is to say, at this time, no water flows out of the filter element mounting seat 20. In this way, when the user needs to replace the filter element 10, there is no need to close the water valve to avoid water flowing out of the filter element mounting seat 20, thereby improving the user experience.

[0107] In some embodiments of the present invention, Figure 17-Figure 20 As shown, when the filter element 10 and the filter element mounting seat 20 are assembled, the filter element 10 and the valve assembly 30 are contacted and matched, so that the valve assembly 30 is switched from the cut-off state to the on state, and the contact and matching reliability is high. In this way, the probability of the valve assembly 30 being in the on state when the filter element 10 is installed on the filter element mounting seat 20 can be increased, thereby improving the reliability of the filter element assembly 100 during operation.

[0108] In some embodiments of the present invention, Figure 17-Figure 20 As shown, in the conducting state, the water inlet interface 211 is separated from the water outlet interface 212. At this time, water flows into the filter element 10 from the water inlet interface 211, and flows out from the water outlet interface 212 after being filtered by the filter element 10. Thus, the filtering function of the filter element assembly 100 can be realized.

[0109] In the cut-off state, the water inlet interface 211 is connected to the water outlet interface 212, that is, after the filter element 10 is separated from the filter element mounting seat 20, the water in the water pipe connected to the filter element mounting seat 20 can still flow normally. In this way, when the user needs to replace the filter element 10, the filter element 10 can be directly removed without affecting the normal use of the water pipe, thereby improving the user experience.

[0110] In some embodiments of the present invention, Figure 17-Figure 20 As shown, a first installation cavity 23 , a second installation cavity 24 and a connecting cavity 25 are formed in the filter element installation seat 20 . The first installation cavity 23 and the second installation cavity 24 are separated from each other. The valve assembly 30 includes a first stop valve 31 and a second stop valve 32 .

[0111] Specifically, a first stop valve 31 is provided in the first installation cavity 23, and the first stop valve 31 includes a first valve seat 311 and a first valve core 312. A first connecting channel 3111 connected to the water inlet interface 211 is formed in the first valve seat 311, and the first valve core 312 is movably provided in the first connecting channel 3111 between a first position and a second position.

[0112] A second stop valve 32 is provided in the second installation cavity 24. The second stop valve 32 includes a second valve seat 321 and a second valve core 322. A second connecting channel 3211 connected to the water outlet interface 212 is formed in the second valve seat 321. The second valve core 322 is movably provided in the second connecting channel 3211 between a third position and a fourth position.

[0113] Among them, when the valve assembly 30 is in the conducting state, the filter element 10 is installed on the filter element mounting seat 20, the first valve core 312 is in the first position and the second valve core 322 is in the third position, the first connecting channel 3111 connects the water inlet interface 211 and the water inlet hole 111, the second connecting channel 3211 connects the water outlet interface 212 and the water outlet hole 112, and the first connecting channel 3111 and the second connecting channel 3211 are both isolated from the connecting cavity 25. At this time, water flows from the water inlet interface 211 into the filter element assembly 100 through the first connecting channel 3111 and the water inlet hole 111, and enters the filter element 10, and after being filtered by the filter element 10, it flows out from the water outlet hole 112 and flows through the second connecting channel 3211 , the water flows out of the filter element assembly 100 through the water outlet interface 212; when the valve assembly 30 is in the cut-off state, the filter element 10 and the filter element mounting seat 20 are in a separated state, the first valve core 312 is in the second position and the second valve core 322 is in the fourth position, the first connecting channel 3111 is separated from the water inlet hole 111, the second connecting channel 3211 is separated from the water outlet hole 112, and the first connecting channel 3111 is connected to the second connecting channel 3211 through the connecting cavity 25. At this time, water can enter the filter element mounting seat 20 from the water inlet interface 211, and flow out of the filter element mounting seat 20 from the water outlet interface 212 through the first connecting channel 3111, the connecting cavity 25 and the second connecting channel 3211.

[0114] Thus, the valve assembly 30 can be switched between the on state and the off state.

[0115] In some embodiments of the present invention, Figure 17-Figure 20 As shown, the first stop valve 31 further includes a first elastic member 313, and the first communication channel 3111 is close to one end of the connecting cavity (for example Fig.17 The inner wall of the first communication channel 3111 shown in FIG. 1 is formed with a first boss 31111, and the first valve core 312 is close to one end of the filter element 10 (for example Fig.17 A second boss 3121 is formed on the outer peripheral wall of the lower end of the first filter element 10 shown in the figure, and the first elastic member 313 is sleeved on the first valve core 312 and abuts between the first boss 31111 and the second boss 3121. The first elastic member 313 is used to push the first valve core 312 to move from the first position to the second position.

[0116] The second stop valve 32 further includes a second elastic member 323, and the second communication channel 3211 is close to one end of the connection cavity (for example Fig.17The inner wall of the second connecting passage 3211 shown in FIG. 3 is formed with a third boss 32111, and the second valve core 322 is close to one end of the filter element 10 (for example Fig.17 A fourth boss 3221 is formed on the outer peripheral wall of the lower end of the second filter element 10 shown in the figure, and the second elastic member 323 is sleeved on the second valve core 322 and abuts between the third boss 32111 and the fourth boss 3221. The second elastic member 323 is used to push the second valve core 322 to move from the third position to the fourth position.

[0117] During the process of installing the filter element 10 on the filter element mounting seat 20, the filter element 10 abuts against the first valve core 312 and the second valve core 322. Under the push of the filter element 10, the first valve core 312 moves toward the connecting cavity and gradually compresses the first elastic member 313, and the second valve core 322 moves toward the connecting cavity and gradually compresses the second elastic member 323. When the filter element 10 is installed on the filter element mounting seat 20, the first valve core 312 is in the first position, the first valve core 312 blocks one end of the first connecting channel 3111 close to the connecting cavity, and the first elastic member 313 is in a compressed state; the second valve core 322 is in the third position, the second valve core 322 blocks one end of the second connecting channel 3211 close to the connecting cavity, and the second elastic member 323 is in a compressed state.

[0118] When the filter element 10 is removed from the filter element mounting seat 20, the filter element 10 is no longer in contact with the first valve core 312 and the second valve core 322, and the first elastic member 313 pushes the first valve core 312 to move toward the filter element 10 until the end of the first communication channel 3111 close to the water inlet hole 111 is blocked, and the second elastic member 323 pushes the second valve core 322 to move toward the filter element 10 until the end of the second communication channel 3211 close to the filter element 10 is blocked. At this time, the first valve core 312 is in the second position and the second valve core 322 is in the fourth position. Thus, the first valve core 312 moves between the first position and the second position and the second valve core 322 moves between the fourth position and the third position.

[0119] In some embodiments of the present invention, the first elastic member 313 and the second elastic member 323 are springs, which are easy to install and have low cost, thereby improving assembly efficiency and reducing production costs.

[0120] In some embodiments of the present invention, Figure 17-Figure 20 As shown, the first valve core 312 is close to one end of the connecting cavity (eg Fig.18 The outer peripheral wall of the first valve core 312 (the upper end of the first valve core 312 shown in FIG) is formed with a seventh sealing groove 3122, and a seventh sealing ring 3123 is provided in the seventh sealing groove 3122. In the first position, the seventh sealing ring 3123 abuts between the groove wall of the seventh sealing groove 3122 and the inner wall of the first connecting channel 3111, and the first valve core 312 is close to one end of the filter element 10 (for example Fig.18An eighth sealing groove 3124 is formed on the outer peripheral wall of the lower end of the first valve core 312 shown in the figure, and the eighth sealing groove 3124 is located between the second boss 3121 and the filter element 10. An eighth sealing ring 3125 is provided in the eighth sealing groove 3124. In the second position, the eighth sealing ring 3125 abuts between the groove wall of the eighth sealing groove 3124 and the inner wall of the first connecting channel 3111.

[0121] The second valve core 322 is close to one end of the connecting cavity (eg Fig.18 A ninth sealing groove 3222 is formed on the outer peripheral wall of the upper end of the second valve core 322 shown in FIG. 1 , and a ninth sealing ring 3223 is provided in the ninth sealing groove 3222. In the third position, the ninth sealing ring 3223 abuts against the groove wall of the ninth sealing groove 3222 and the inner wall of the second connecting channel 3211. The second valve core 322 is close to one end of the filter element 10 (for example Fig.18 A tenth sealing groove 3224 is formed on the outer peripheral wall of the lower end of the second valve core 322 shown in the figure, and the tenth sealing groove 3224 is located between the fourth boss 3221 and the filter element 10. A tenth sealing ring 3225 is provided in the tenth sealing groove 3224. In the fourth position, the tenth sealing ring 3225 abuts against the groove wall of the tenth sealing groove 3224 and the inner wall of the second connecting channel 3211.

[0122] In this way, when the filter element 10 is installed on the filter element mounting seat 20, the filter element 10 abuts against the first valve core 312 and the second valve core 322, so that the first valve core 312 is located in the first position and the second valve core 322 is in the third position. At this time, the seventh sealing ring 3123 abuts between the groove wall of the seventh sealing groove 3122 and the inner wall of the first connecting channel 3111, and the ninth sealing ring 3223 abuts between the groove wall of the ninth sealing groove 3222 and the inner wall of the second connecting channel 3211.

[0123] The seventh sealing ring 3123 is deformed under the extrusion of the groove wall of the seventh sealing groove 3122 and the inner wall of the first connecting channel 3111, and the groove wall of the seventh sealing groove 3122 and the inner wall of the first connecting channel 3111 are sealed. The ninth sealing ring 3223 is deformed under the extrusion of the groove wall of the ninth sealing groove 3222 and the inner wall of the second connecting channel 3211, and the groove wall of the ninth sealing groove 3222 and the inner wall of the second connecting channel 3211 are sealed. As a result, the first connecting channel 3111 and the second connecting channel 3211 are both separated from the connecting cavity 25, and water can normally enter the filter element 10 from the water inlet interface 211 for filtration and flow out from the water outlet interface 212.

[0124] When the filter element 10 is removed from the filter element mounting seat 20, the first valve core 312 moves to the second position under the push of the first elastic member 313, and the second valve core 322 moves to the fourth position under the push of the second elastic member 323. At this time, the eighth sealing ring 3125 abuts between the groove wall of the eighth sealing groove 3124 and the inner wall of the first connecting channel 3111, and the tenth sealing ring 3225 abuts between the groove wall of the tenth sealing groove 3224 and the inner wall of the second connecting channel 3211.

[0125] The eighth sealing ring 3125 is deformed under the extrusion of the groove wall of the eighth sealing groove 3124 and the inner wall of the first connecting channel 3111, and the groove wall of the eighth sealing groove 3124 and the inner wall of the first connecting channel 3111 are sealed. The tenth sealing ring 3225 is deformed under the extrusion of the groove wall of the tenth sealing groove 3224 and the inner wall of the second connecting channel 3211, and the groove wall of the tenth sealing groove 3224 and the inner wall of the second connecting channel 3211 are sealed. As a result, the first connecting channel 3111 is separated from the water inlet hole 111, and the second connecting channel 3211 is separated from the water outlet hole 112. At the same time, the first connecting channel 3111 and the second connecting channel 3211 are connected to the connecting cavity 25, and water can flow out from the water inlet interface 211 through the first connecting channel 3111, the connecting cavity 25, and the second connecting channel 3211 from the water outlet interface 212.

[0126] Reference below Figure 1-Figure 20 A water heater 1000 according to an embodiment of the second aspect of the present invention is described.

[0127] The water heater 1000 according to the second embodiment of the present invention comprises the filter element assembly 100 according to the first embodiment of the present invention.

[0128] According to the water heater 1000 of the second aspect of the present invention, by setting the filter element assembly 100 according to the first aspect of the present invention, the water flowing into and / or into the water heater 1000 can be filtered, thereby improving the water quality of the water flowing out of the water heater 1000 and enhancing the user experience.

[0129] In some embodiments of the present invention, Fig.15 and Fig.16 As shown, the water heater 1000 includes a housing 200 and an inner tank 300, the inner tank 300 is disposed in the housing 200, and the filter element assembly 100 is disposed in the housing 200 and / or outside the housing 200. That is, the filter element assembly 100 may be disposed in the housing 200, or the filter element assembly 100 may be disposed in the housing 200, or the filter element assembly 100 may be disposed in the housing 200 and outside the housing 200.

[0130] When the filter element assembly 100 is disposed in the housing 200, the filter element assembly 100 does not need to occupy the external layout space, and the housing 200 can provide protection for the filter element assembly 100, reducing the probability of the filter element assembly 100 being damaged by the outside. When the filter element assembly 100 is disposed outside the housing 200, the filter element 10 can be easily replaced or repaired.

[0131] In some embodiments of the present invention, Fig.15 and Fig.16 As shown, the water heater 1000 further includes a water inlet pipe 400 and a water outlet pipe 500, and the filter element assembly 100 is serially connected to the water inlet pipe 400 and / or the water outlet pipe 500. In other words, the filter element assembly 100 may be serially connected to the water inlet pipe 400, the filter element assembly 100 may be serially connected to the water outlet pipe 500, or the filter element assembly 100 may be serially connected to the water inlet pipe 400 and the water outlet pipe 500.

[0132] When connected in series, one end of the upstream water flow of the water inlet pipe 400 and / or is connected to the water inlet interface 211 of the filter element mounting seat 20, and one end of the downstream water flow of the water inlet pipe 400 and / or is connected to the water outlet interface 212 of the filter element mounting seat 20. In this way, the water flow of the water inlet pipe 400 and / or the water outlet pipe 500 flows into the filter element assembly 100 from the water inlet interface 211, and the water flows out from the water outlet interface 212 after being filtered by the filter element assembly 100.

[0133] When the filter element assembly 100 is connected in series to the water inlet pipe 400, the water quality of the water flowing into the water heater 1000 can be improved, thereby improving the water quality of the water flowing out of the water heater 1000 and increasing the service life of the water heater 1000. When the filter element assembly 100 is connected in series to the water outlet pipe 500, the water flowing out of the water heater 1000 can be filtered, thereby improving the water quality of the water flowing out of the water heater 1000 and reducing the probability that impurities in the water heater 1000 will flow to the user together with the water flow and cause discomfort, thereby improving the user experience.

[0134] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0135] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0136] 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 a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection 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.

[0137] 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.

[0138] 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 filter element mounting seat, wherein the filter element mounting seat has a water inlet interface and a water outlet interface; A filter element, wherein the filter element is detachably connected to the filter element mounting seat, and the filter element comprises: A shell having a water inlet and a water outlet, A central tube, the central tube is arranged in the shell, and a water hole is formed on the peripheral wall of the central tube. A filter material cover, wherein the filter material cover is arranged in the shell and is located on the side of the central tube facing the water inlet, the filter material cover, the outer wall surface of the central tube and the inner wall surface of the shell cooperate to define a filter material cavity, the filter material cavity is filled with filter material, the inner side of the central tube defines a central channel, the filter material cavity is connected with the water inlet interface through the water inlet hole, the central channel is connected with the water outlet interface through the water outlet hole, the filter material cavity and the central channel are connected through the water through hole, A water stop member, the water stop member is arranged in the housing and located at the water inlet hole, the water stop member is used to open and close the water inlet hole, A first valve is arranged at the water outlet position and is used for opening and closing the water outlet.

2. The filter element assembly according to claim 1, characterized in that: The filter material is an adsorptive filter material, an ion displacement filter material or an ion agglomeration prevention filter material; and / or, The filter material is a sheet-like filter material, a granular filter material and / or a cotton-like filter material.

3. The filter element assembly according to claim 1, characterized in that: The first valve is a one-way valve, and the first valve is configured to open the water outlet when the pressure in the housing reaches a preset pressure.

4. The filter element assembly according to claim 1, characterized in that: A plurality of limiting ribs are arranged on the bottom wall of the shell, and the plurality of limiting ribs are arranged at intervals around the central tube. The filter cover has a limiting portion, one end of the central tube is limitedly matched with the limiting portion, and the other end of the central tube is limitedly matched with the inner side of the plurality of limiting ribs.

5. The filter element assembly according to claim 4, characterized in that: The limiting portion is formed as a limiting groove, and the one end of the central tube is provided with a limiting ring protruding outwardly along the radial direction of the central tube. The limiting ring extends along the circumference of the central tube, and the limiting ring is limitedly fitted in the limiting groove.

6. The filter element assembly according to claim 1, characterized in that: The filter cover comprises a cover body and a first tube portion, wherein the cover body is a plate body arranged perpendicular to the axis of the central tube, the first tube portion is connected to the cover body and extends along the axial direction of the central tube, and an intermediate channel is defined inside the first tube portion. The shell has a second tube portion, which extends along the axial direction of the central tube and defines the water outlet hole on the inner side. The first tube portion and the second tube portion are sealed and sleeved, and the water outlet hole is connected with the central channel through the intermediate channel.

7. The filter element assembly according to claim 1, characterized in that: A through hole penetrating the filter material cover is formed on the filter material cover, and the filter element further includes a filter screen, which is arranged on the filter material cover and covers the through hole.

8. The filter element assembly according to claim 1, characterized in that: The filter element also includes: a positioning member and an elastic member, the positioning member is fixed to the shell and is arranged on the side of the filter material cover facing the water inlet hole, and the elastic member is connected between the positioning member and the water stop member to push the water stop member to block the water inlet hole.

9. The filter element assembly according to claim 8, characterized in that: When the filter element is separated from the filter element mounting seat, the elastic member pushes the water stop member to block the water inlet hole. When the filter element is connected to the filter element mounting seat, the filter element mounting seat pushes the water stop member to open the water inlet hole.

10. The filter element assembly according to claim 9, characterized in that: The filter element mounting seat includes a mounting seat body and a push rod, the mounting seat body is formed with the water inlet interface, the mounting seat body is detachably connected to the filter element, one end of the push rod is connected to the mounting seat body, and the other end of the push rod passes through the water inlet hole and extends into the shell to push the water stop member to open the water inlet hole.

11. The filter element assembly according to claim 8, characterized in that: A guide hole passing through the shell is formed on the shell, and the filter element includes: a push rod, one end of the push rod is fixed to the water stop member and the other end is inserted into the guide hole, when the filter element is separated from the filter element mounting seat, the other end of the push rod extends out of the shell, and when the filter element is connected to the filter element mounting seat, the filter element mounting seat abuts against the push rod and pushes the water stop member through the push rod to open the water inlet hole.

12. The filter element assembly according to claim 11, characterized in that: The guide hole includes a first hole section and a second hole section, the first hole section is located on a side of the second hole section facing the water inlet interface, and the hole diameter of the first hole section is smaller than the hole diameter of the second hole section. A limiting boss is provided at one end of the push rod connected to the water stop member, and the cross-sectional size of the limiting boss is larger than the cross-sectional size of the first hole section. When the water stop member blocks the water inlet hole, the limiting boss cooperates in the second hole section and blocks the first hole section.

13. The filter element assembly according to claim 8, characterized in that: The water inlet hole is arranged around the water outlet hole, and the water stopper extends in a ring shape along the circumference of the shell.

14. The filter element assembly according to claim 8, characterized in that: An annular mounting groove is provided on the side of the water stop member facing away from the water inlet hole. The elastic member is a spring. One end of the spring extends into the mounting groove and is fixedly connected to the water stop member.

15. The filter element assembly according to claim 8, characterized in that: The positioning member extends in a ring shape along the circumferential direction of the shell, and a positioning groove is provided on the inner circumferential surface of the shell. The outer circumferential edge of the positioning member is matched in the positioning groove.

16. The filter element assembly according to claim 1, characterized in that: The shell includes a first shell and a second shell, one end of the first shell is open, the second shell is arranged at the open end of the first shell, one end of the second shell facing the first shell is open and is detachably connected to the first shell, the central tube is arranged in the first shell, and the water inlet and the water outlet are both formed in the second shell.

17. The filter element assembly according to claim 1, characterized in that: A valve assembly is provided in the filter element mounting seat, and the valve assembly has an on state and a off state; Wherein, after the filter element is assembled with the filter element mounting seat, 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 filter element mounting seat, the valve assembly is in the cut-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.

18. The filter element assembly according to claim 17, characterized in that: When the filter element is assembled with the filter element mounting seat, the filter element is in contact with and cooperates with the valve assembly, so that the valve assembly switches from the cut-off state to the conduction state.

19. The filter element assembly according to claim 17, 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.

20. A water heater, characterized in that: Comprising a filter element assembly according to any one of claims 1-19.

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