Filter element assembly, water purification equipment and water heater

Abstract

The invention discloses a filter element assembly, water purification equipment and a water heater, the filter element assembly comprises a filter element mounting seat and a filter element, and the filter element mounting seat is provided with a water inlet runner; the filter element is detachably connected with the filter element mounting seat, the filter element comprises a shell, a water stop piece, a positioning piece and an elastic piece, the shell is provided with a water inlet hole, and the water inlet hole is communicated with the water inlet runner; the water stop piece is arranged in the shell and located at the position of the water inlet hole. The water stop piece is provided with an opening position for opening the water inlet hole and a closing position for closing the water inlet hole. The positioning piece is arranged in the shell and fixed to the shell, and the elastic piece is connected between the positioning piece and the water stop piece and used for keeping the water stop piece at the closing position. According to the filter element assembly provided by the embodiment of the invention, the water stop piece and the elastic piece are arranged in the filter element, the elastic piece is used for keeping the water stop piece at the closed position, the water stop piece can seal water in the filter element in the filter element when the filter element is replaced, the water in the filter element is prevented from spilling out from the water inlet hole, the use experience of a user is improved, and the labor amount of the user is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a filter element assembly, a water purification device and a water heater. Background Art

[0002] Now more and more consumers are paying attention to the health of water quality, and are beginning to shift from simple water use scenarios to health areas such as moisturizing, soothing, and beautifying the skin.

[0003] There is a common design flaw in the filter elements on the market, which is that when the filter element is replaced, the water inside the filter element will spill out, greatly reducing the user's overall experience. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a filter element assembly, by arranging a water stopper, a positioning member and an elastic member in the filter element, the positioning member can fix the elastic member in the filter element, the elastic member is used to keep the water stopper in a closed position, and when the filter element is replaced, the water stopper can seal the water in the filter element in the filter element to prevent the water in the filter element from spilling out from the water inlet hole, thereby improving the user's experience and reducing the user's workload.

[0005] The invention also provides a water purification device having the filter element assembly.

[0006] The present invention also provides a water heater having the water purification device.

[0007] According to the first aspect of the present invention, the filter element assembly comprises: a filter element mounting seat, the filter element mounting seat having a water inlet channel; a filter element, the filter element being detachably connected to the filter element mounting seat, the filter element comprising: a shell, the shell having a water inlet hole, the water inlet hole being connected to the water inlet channel; a water stop member, the water stop member being arranged in the shell and located at the water inlet hole position, the water stop member having an open position for opening the water inlet hole and a closed position for closing the water inlet hole; a positioning member and an elastic member, the positioning member being arranged in the shell and fixed to the shell, the elastic member being connected between the positioning member and the water stop member, the elastic member being used to keep the water stop member in the closed position.

[0008] According to the filter element assembly of the embodiment of the present invention, a water stop member, a positioning member and an elastic member are arranged in the filter element. The positioning member can fix the elastic member in the filter element, and the elastic member is used to keep the water stop member in a closed position closing the water inlet hole. When the filter element is replaced, the water stop member can seal the water in the filter element in the filter element to prevent the water in the filter element from spilling out from the water inlet hole, thereby improving the user's experience and reducing the user's workload.

[0009] 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 forms the water inlet channel, 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.

[0010] According to some embodiments of the present invention, the mounting seat body and the push rod are integrally formed.

[0011] According to some embodiments of the present invention, the filter element includes: a push rod, which is inserted into the water inlet hole and cooperates with the clearance of the peripheral wall of the water inlet hole, one end of the push rod abuts against the water stop member and the other end 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.

[0012] According to some embodiments of the present invention, the push rod includes a rod body and a positioning boss, the positioning boss is arranged at one end of the rod body facing the water stop member, and the housing is provided with a positioning groove that cooperates with the positioning boss.

[0013] According to some embodiments of the present invention, the filter element mounting seat also has a water outlet channel, the shell also has a water outlet hole, the water inlet hole is connected to the water inlet channel, and the filter element also includes: a water outlet valve, which is arranged at the water outlet hole position for opening or closing the water outlet hole.

[0014] According to some embodiments of the present invention, the water outlet valve is a one-way valve, and the one-way valve is configured to open the water outlet hole when the pressure in the housing reaches a preset pressure.

[0015] According to some embodiments of the present invention, the filter element further includes: a center tube, which is arranged in the shell, and a water hole is formed on the peripheral wall of the center tube; a filter material cover, which is arranged in the shell and is located on the side of the center tube facing the water inlet hole, the filter material cover, the outer wall surface of the center tube and the inner wall surface of the shell cooperate to define a filter material space, the filter material space is filled with filter material, the inner side of the center tube defines a central channel, the filter material space is connected to the water inlet channel through the water inlet hole, the central channel is connected to the water outlet channel through the water outlet hole, and the filter material space and the central channel are connected through the water hole.

[0016] 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.

[0017] According to some embodiments of the present invention, the filter element also includes: a first filter material box, the first filter material box having a filter material cavity, the filter material cavity is filled with filter material, the surrounding wall of the first filter material box has a water-passing mesh, the outer wall surface of the first filter material box and the inner wall surface of the shell cooperate to define a water guide channel, the water guide channel is connected with the water inlet channel through the water inlet hole, the filter material cavity is connected with the water outlet channel through the water outlet hole, and the filter material cavity and the water guide channel are connected through the water-passing mesh.

[0018] According to some embodiments of the present invention, the first filter material box includes: a first material barrel, the peripheral wall of the first material barrel has a filter screen mounting frame; and a filter screen, the filter screen being detachably mounted on the filter screen mounting frame.

[0019] According to some embodiments of the present invention, the filter element also includes: a second filter material box, the second filter material box having a filter material accommodating cavity, the filter material accommodating cavity being filled with filter material, the second filter material box having a filter material exchange hole, a water flow channel defined between the second filter material box and the shell, one end of the water flow channel being connected to the water inlet channel through the water inlet hole, the other end of the water flow channel being connected to the water outlet channel through the water outlet hole, and the water flow channel and the filter material accommodating cavity being connected through the filter material exchange hole.

[0020] A water purification device according to an embodiment of a second aspect of the present invention comprises a filter element assembly according to an embodiment of the first aspect of the present invention.

[0021] According to the water purification device of the embodiment of the present invention, by setting the above-mentioned filter element assembly, the water in the filter element can be sealed in the filter element when the filter element is replaced, preventing the water in the filter element from spilling out from the water inlet hole, thereby improving the user's usage experience and reducing the user's workload.

[0022] The water heater according to the third aspect of the present invention comprises the water purification device according to the second aspect of the present invention.

[0023] According to the water heater of the embodiment of the present invention, by providing the above-mentioned water purification device, the water in the filter element can be sealed in the filter element when the filter element is replaced, preventing the water in the filter element from spilling out from the water inlet hole, thereby improving the user's usage experience and reducing the user's workload.

[0024] 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

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is a cross-sectional view of a filter element assembly according to an embodiment of the first aspect of the present invention;

[0027] Figure 2 is a cross-sectional exploded view of a filter element assembly according to an embodiment of the first aspect of the present invention;

[0028] Figure 3 is a cross-sectional view of a filter element assembly according to an embodiment of the second aspect of the present invention;

[0029] Figure 4 is a cross-sectional exploded view of a filter element assembly according to an embodiment of the second aspect of the present invention;

[0030] Figure 5 is a cross-sectional view of a filter element assembly according to an embodiment of the third aspect of the present invention;

[0031] Figure 6 is a cross-sectional exploded view of a filter element assembly according to an embodiment of the third aspect of the present invention;

[0032] Figure 7 is a cross-sectional view of a filter element assembly according to an embodiment of a fourth aspect of the present invention;

[0033] Figure 8 is a cross-sectional exploded view of a filter element assembly according to an embodiment of a fourth aspect of the present invention;

[0034] Fig. 9 is a cross-sectional view of a filter element assembly according to an embodiment of a fifth aspect of the present invention;

[0035] Fig.10 is a cross-sectional exploded view of a filter element assembly according to an embodiment of a fifth aspect of the present invention;

[0036] Fig.11 is a cross-sectional view of a filter element assembly according to an embodiment of a sixth aspect of the present invention;

[0037] Fig.12 is a cross-sectional exploded view of a filter element assembly according to an embodiment of a sixth aspect of the present invention;

[0038] Fig.13 is a cross-sectional view of a filter element assembly according to a seventh embodiment of the present invention;

[0039] Fig.14 is a cross-sectional exploded view of a filter element assembly according to a seventh embodiment of the present invention;

[0040] Fig.15 is a cross-sectional view of a filter element assembly according to an eighth embodiment of the present invention;

[0041] Fig.16 is a cross-sectional exploded view of a filter element assembly according to an eighth aspect of the present invention;

[0042] Fig.17 is a cross-sectional view of a filter element assembly according to an embodiment of a ninth aspect of the present invention;

[0043] Fig.18 is a cross-sectional exploded view of a filter element assembly according to an embodiment of a ninth aspect of the present invention;

[0044] Fig.19 is a cross-sectional view of a filter element according to an embodiment of the first aspect of the present invention;

[0045] Fig. 20 is a cross-sectional view of a filter element according to an embodiment of the second aspect of the present invention;

[0046] Fig.21 is a cross-sectional view of a filter element according to an embodiment of the third aspect of the present invention;

[0047] Fig. 22 is a cross-sectional view of a filter element according to a seventh embodiment of the present invention;

[0048] Fig.23 is a cross-sectional view of a filter element according to an eighth embodiment of the present invention;

[0049] Fig.24 is a cross-sectional view of a filter element according to an embodiment of a ninth aspect of the present invention;

[0050] Fig.25 is a cross-sectional view of a filter element receiving seat according to an embodiment of the present invention, wherein a filter element is installed;

[0051] Fig.26 is a cross-sectional view of a filter element receiving seat according to an embodiment of the present invention, wherein the filter element is not installed;

[0052] Fig. 27 is an exploded view of a filter element socket and a filter element according to an embodiment of the present invention;

[0053] Fig.28 is a schematic diagram of a water heater according to an embodiment of the present invention, wherein a filter element assembly is installed in a housing;

[0054] Fig.29 is a schematic diagram of a water heater according to an embodiment of the present invention, wherein the filter element assembly is installed outside the housing.

[0055] Reference numerals:

[0056] 100. Filter element assembly;

[0057] 10. Filter element mounting seat; 11. Water inlet channel; 12. Water outlet channel; 13. Mounting seat body; 14. Push rod; 15. Slide rail; 161. First water retaining member; 162. Second water retaining member; 163. First spring; 164. Second spring; 171. First sealing ring; 172. Second sealing ring; 173. Third sealing ring; 174. Fourth sealing ring; 181. Filter element inlet; 182. Filter element outlet; 183. Intermediate channel; 184. Intermediate channel inlet; 185. Intermediate channel outlet;

[0058] 20. Filter element;

[0059] 30. Shell; 31. Upper shell; 311. Water inlet hole; 312. Water outlet hole; 313. Positioning protrusion; 314. Positioning groove; 32. Lower shell; 321. Limiting structure; 33. Sliding rib; 34. Sealing member;

[0060] 40. push rod; 41. rod body; 42. positioning boss;

[0061] 51. Water stop; 511. Assembly groove; 52. Elastic member; 53. Positioning member; 531. First flange; 54. Water outlet valve; 541. One-way valve;

[0062] 61. Central tube; 611. Water hole; 62. Central channel; 63. Filter material space; 64. Filter material cover; 65. Filter screen; 66. Fifth sealing ring;

[0063] 70, first filter material box; 71, first material barrel; 72, water mesh hole; 73, filter screen mounting frame; 731, second flange; 74, filter screen; 75, filter material cavity; 76, water guide channel;

[0064] 80, second filter material box; 81, second material barrel; 811, opening; 82, material cover; 821, filter material exchange hole; 83, filter material accommodating chamber; 84, water flow channel;

[0065] 90. Water heater; 91. Outer shell; 92. Inner tank; 93. Water inlet pipe; 94. Water outlet pipe; 95. Pre-filter element; 96. Post-filter element. DETAILED DESCRIPTION

[0066] 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0067] Reference below Figure 1-Figure 29 A filter element assembly 100 according to an embodiment of the present invention is described.

[0068] Reference Figure 1-Figure 18 The filter element assembly 100 includes a filter element mounting seat 10 and a filter element 20, and the filter element mounting seat 10 has a water inlet channel 11. For example, the filter element mounting seat 10 can be set on a water purification device, and the water inlet channel 11 is connected to the waterway on the water purification device. The filter element 20 is detachably connected to the filter element mounting seat 10, and the filter element 20 can be removed from the filter element mounting seat 10, which can facilitate the later maintenance or replacement of the filter element 20. For example, the filter element mounting seat 10 can be provided with a slide rail 15, and a slide bar 33 can be provided on the filter element 20, so that one end of the filter element 20 can be rotated to the filter element mounting seat 10, and the slide rail 15 and the filter element mounting seat 10 can define an installation groove, and the slide bar 33 can be installed in the installation groove, and then the filter element 20 can be installed on the filter element mounting seat 10. This structure can ensure the stability of the installation of the filter element 20, and can also facilitate the later replacement of the filter element 20.

[0069] The filter element 20 includes a housing 30, a water stopper 51, a positioning member 53 and an elastic member 52, wherein the water stopper 51, the positioning member 53 and the elastic member 52 are all disposed in the housing 30. The housing 30 has a water inlet hole 311, which is communicated with the water inlet channel 11. The water stop member 51 is located at the water inlet hole 311, and the water stop member 51 has an open position for opening the water inlet hole 311 and a closed position for closing the water inlet hole 311. When the water stop member 51 is located at the open position for opening the water inlet hole 311, the water inlet hole 311 can connect the water inlet channel 11 with the filter element 20, and the water in the water inlet channel 11 can flow into the filter element 20 through the water inlet hole 311; when the water stop member 51 is located at the closed position for closing the water inlet hole 311, the water inlet hole 311 cannot connect the water inlet channel 11 with the filter element 20, the water in the water inlet channel 11 cannot flow into the filter element 20 through the water inlet hole 311, and the water in the filter element 20 cannot flow out through the water inlet hole 311.

[0070] The positioning member 53 is fixed to the housing 30. For example, the inner peripheral wall of the housing 30 is provided with a positioning protrusion 313. The positioning member 53 is located on the positioning protrusion 313, which can fix the position of the positioning member 53 in the housing 30, so that the positioning member 53 is fixed to the housing 30. The end of the water stop 51 close to the elastic member 52 is provided with a mounting groove 511, and the end of the positioning member 53 close to the elastic member 52 is provided with a first flange 531. One end of the elastic member 52 is placed in the mounting groove 511, and the other end of the elastic member 52 is placed in the first flange 531, so as to ensure the radial stability of the water stop 51 and the elastic member 52.

[0071] The elastic member 52 is connected between the positioning member 53 and the water stop member 51. The elastic member 52 is used to keep the water stop member 51 in the closed position. After the filter element 20 is used, a portion of water will remain in the filter element 20. When the water stop member 51 is kept in the closed position, the water retained in the filter element 20 can be sealed in the filter element 20 to prevent the water in the filter element 20 from spilling out of the water inlet hole 311 when the filter element 20 is replaced. The water in the filter element 20 will not spill out, which will increase the user's labor and improve the user's experience. The elastic force of the elastic member 52 is used to push the water stop member 51 to remain in the closed position, so that the way in which the water stop member 51 closes the water inlet hole 311 is simple, and the reliability of closing the water inlet hole 311 is high. For example, the elastic member 52 can be a spring, and the water stop member 51 can be made of silicone rubber, EPDM rubber, nitrile rubber, fluororubber and other materials.

[0072] When the filter element 20 needs to be replaced or repaired, the filter element 20 needs to be removed from the filter element mounting seat 10, and the elastic member 52 can be elastically reset to keep the water stop member 51 in the closed position, so that the water in the filter element 20 can be sealed in the filter element 20 to prevent the water in the filter element 20 from spilling out from the water inlet hole 311 when the filter element 20 is replaced. When the filter element 20 is installed on the filter element mounting seat 10, the water stop member 51 can be in the open position of the water inlet hole 311, and the water in the water inlet channel 11 can flow into the filter element 20 through the water inlet hole 311.

[0073] In a specific example, the housing 30 may include an upper housing 31 and a lower housing 32, and the water inlet 311 and the water outlet 312 are both located at one end of the upper housing 31 away from the lower housing 32. The upper housing 31 and the lower housing 32 may be connected by threads, part of the outer peripheral wall of the upper housing 31 has external threads, and part of the inner peripheral wall of the lower housing 32 has internal threads, and part of the upper housing 31 may be accommodated in the lower housing 32, and the upper housing 31 and the lower housing 32 may be threadedly matched, so that the upper housing 31 and the lower housing 32 may be sealed and connected. A sealing member 34 is provided at the assembly of the upper housing 31 and the lower housing 32 to seal the connection between the upper housing 31 and the lower housing 32 to prevent water from leaking out of the connection between the upper housing 31 and the lower housing 32.

[0074] According to the filter element assembly 100 of the embodiment of the present invention, by arranging a water stop member 51, a positioning member 53 and an elastic member 52 in the filter element 20, the positioning member 53 can fix the elastic member 52 in the filter element 20, and the elastic member 52 is used to keep the water stop member 51 in the closed position of closing the water inlet hole 311. When the filter element 20 is replaced, the water stop member 51 can seal the water in the filter element 20 in the filter element 20 to prevent the water in the filter element 20 from spilling out from the water inlet hole 311, thereby improving the user's experience and reducing the user's workload.

[0075] In another specific example, with specific reference to Figure 25-27The filter element mounting seat 10 also has a water outlet channel 12, and the housing 30 also has a water outlet hole 312, which is connected to the water outlet channel 12. A valve assembly is also provided in the filter element mounting seat 10, and an intermediate channel 183 is also provided in the filter element mounting seat 10, and the intermediate channel 183 can connect the water outlet channel 12 and the water inlet channel 11, and the valve assembly is used to control the water flow direction in the filter element mounting seat 10. The valve assembly includes a first water retaining member 161, a second water retaining member 162, a first spring 163 and a second spring 164. The first spring 163 is sleeved on the outer peripheral wall of the first water retaining member 161, the first water retaining member 161 is arranged in the water inlet channel 11, and the first water retaining member 161 is used to open or close the filter element inlet 181 and the intermediate channel inlet 184; the second spring 164 is sleeved on the outer peripheral wall of the second water retaining member 162, the second water retaining member 162 is arranged in the water outlet channel 12, and the second water retaining member 162 is used to open or close the filter element outlet 182 and the intermediate channel outlet 185. The outer peripheral wall of the first water retaining member 161 is sleeved with a first sealing ring 171 and a second sealing ring 172, the first sealing ring 171 is used to seal the intermediate channel inlet 184, and the second sealing ring 172 is used to seal the filter element inlet 181; the outer peripheral wall of the second water retaining member 162 is sleeved with a third sealing ring 173 and a fourth sealing ring 174, the third sealing ring 173 is used to seal the intermediate channel outlet 185, and the fourth sealing ring 174 is used to seal the filter element outlet 182.

[0076] When the filter element 20 is installed on the filter element mounting seat 10, the upper housing 31 of the filter element 20 can push the first water retaining member 161 and the second water retaining member 162 to move, so that the first water retaining member 161 opens the filter element inlet 181 and can close the intermediate flow channel inlet 184, and the first sealing ring 171 further seals the intermediate flow channel inlet 184; so that the second water retaining member 162 opens the filter element outlet 182 and can close the intermediate flow channel outlet 185, and the third sealing ring 173 further seals the intermediate flow channel outlet 185. Water can flow from the water inlet channel 11 into the filter element 20, and the water in the filter element 20 can flow into the water outlet channel 12.

[0077] When the filter element 20 is removed from the filter element mounting seat 10, the elastic force of the first spring 163 can push the first water retaining member 161 to close the filter element inlet 181 and open the intermediate flow channel inlet 184, and the second sealing ring 172 further seals the filter element inlet 181; the elastic force of the second spring 164 can push the second water retaining member 162 to close the filter element outlet 182 and open the intermediate flow channel outlet 185, and the fourth sealing ring 174 further seals the filter element outlet 182. Water can flow from the water inlet channel 11 into the intermediate flow channel 183, and the water in the intermediate flow channel 183 can flow into the water outlet channel 12. After the filter element 20 is removed from the filter element mounting seat 10, the water in the water outlet channel 12 can be prevented from flowing out from the filter element inlet 181, which can improve the user experience and reduce the user's workload.

[0078] According to some embodiments of the present invention, referring to Figure 7-Figure 12 The filter element mounting seat 10 includes a mounting seat body 13 and a push rod 14. The mounting seat body 13 is formed with a water inlet channel 11. The mounting seat body 13 is detachably connected to the filter element 20. The filter element 20 can be mounted on the mounting seat body 13, or the filter element 20 can be removed from the mounting seat body 13. For example, the mounting seat body 13 can be provided with a slide rail 15, and the filter element 20 can be provided with a slide rib 33. The filter element 20 can be mounted on the mounting seat body 13 by the cooperation of the slide rail 15 and the slide rib 33, and the filter element 20 can also be easily replaced later. One end of the push rod 14 is connected to the mounting seat body 13, and the other end of the push rod 14 passes through the water inlet hole 311 and extends into the housing 30 to push the water stop 51 to open the water inlet hole 311. When the filter element 20 is installed on the mounting seat body 13, the push rod 14 can push the water stop 51 to overcome the elastic force of the elastic member 52 to open the water inlet hole 311; when the filter element 20 can be removed from the mounting seat body 13, the push rod 14 can be removed from the water inlet hole 311, and the elastic member 52 can be elastically reset to keep the water stop 51 in the closed position. The push rod 14 is arranged on the filter element mounting seat 10, so that the water stop 51 can open the water inlet hole 311 in a simple and reliable manner.

[0079] According to some embodiments of the present invention, referring to Figure 7-Figure 12 The mounting seat body 13 and the push rod 14 are integrally formed, which can ensure the structural strength of the mounting seat body 13 and the push rod 14, and can also save the assembly process of installing the push rod 14 on the mounting seat body 13.

[0080] According to some embodiments of the present invention, referring to Figure 13-Figure 18 The filter element 20 includes a push rod 40, which is inserted into the water inlet hole 311 and is matched with the clearance of the peripheral wall of the water inlet hole 311. One end of the push rod 40 abuts against the water stop 51, and the other end of the push rod 40 extends out of the housing 30. When the filter element 20 is connected to the filter element mounting seat 10, the filter element mounting seat 10 abuts against the push rod 40, and the filter element mounting seat 10 can push the push rod 40 to move. When the push rod 40 moves, it can push the water stop 51 to move to open the water inlet hole 311, so that the water stop 51 is in the open position, and the water in the water inlet flow channel 11 can flow into the filter element 20 through the water inlet hole 311. When the filter element 20 is removed from the filter element mounting seat 10, the elastic member 52 can be elastically reset to keep the water stop 51 in the closed position, and the water stop 51 can prevent the water in the filter element 20 from flowing out of the filter element 20 from the water inlet hole 311. For example, the number of push rods 40 can be set to multiple, and multiple push rods 40 are arranged at intervals on the water stop 51, so that the force of the push rods 40 pushing the water stop 51 can be more balanced. Optionally, the push rod 40 can be connected to the water stop 51; optionally, the push rod 40 and the water stop 51 can be designed separately.

[0081] According to some embodiments of the present invention, referring to Figure 13-Figure 18 The push rod 40 includes a rod body 41 and a positioning boss 42. The rod body 41 can be connected to the positioning boss 42. The positioning boss 42 is arranged at one end of the rod body 41 facing the water stop 51. The housing 30 is provided with a positioning groove 314, which cooperates with the positioning boss 42. When the filter element 20 is removed from the filter element mounting seat 10, the elastic member 52 can be elastically reset to push the water stop 51 to move. When the water stop 51 moves, it can push the push rod 40 to move, so that the positioning boss 42 can be accommodated in the positioning groove 314. The positioning groove 314 can prevent the positioning boss 42 from continuing to move in a direction away from the water stop 51. The positioning groove 314 can limit the position of the positioning boss 42, and then limit the position of the push rod 40, and prevent the push rod 40 from falling off from the water inlet hole 311.

[0082] According to some embodiments of the present invention, referring to Figure 1-Figure 24 , the filter element mounting seat 10 also has a water outlet channel 12, and the housing 30 also has a water outlet hole 312, and the water outlet hole 312 is connected to the water outlet channel 12. The water in the water inlet channel 11 can flow into the filter element 20 through the water inlet hole 311, and the water filtered by the filter element 20 can flow to the water outlet channel 12 through the water outlet hole 312, so that the filter element 20 completes the filtration of water. The filter element 20 also includes a water outlet valve 54, which is arranged at the position of the water outlet hole 312 to open or close the water outlet hole 312. When the water outlet valve 54 opens the water outlet hole 312, the water outlet hole 312 can connect the filter element 20 with the water outlet channel 12, and the water in the filter element 20 can flow into the water outlet channel 12 through the water outlet hole 312; when the water outlet valve 54 closes the water outlet hole 312, the water outlet valve 54 can prevent the water in the filter element 20 from flowing into the water outlet channel 12 through the water outlet hole 312.

[0083] According to some embodiments of the present invention, referring to Figure 1-Figure 24The water outlet valve 54 is a one-way valve 541. The one-way valve 541 is configured to open the water outlet hole 312 when the pressure in the housing 30 reaches a preset pressure. The one-way valve 541 can control the water in the filter element 20 to flow in only one direction, that is, the water in the filter element 20 can only flow into the water outlet channel 12 through the water outlet hole 312; the one-way valve 541 can prevent the water in the water outlet channel 12 from flowing into the filter element 20 through the water outlet hole 312. After the filter element 20 is removed from the filter element mounting seat 10, the pressure in the housing 30 is lower than the preset pressure, and the one-way valve 541 can close the water outlet hole 312 to prevent the water in the filter element 20 from flowing out through the water outlet hole 312, so that the water in the filter element 20 can be sealed in the filter element 20. For example, the preset pressure can be 0.05Mpa. When the pressure inside the shell 30 is greater than 0.05Mpa, the one-way valve 541 can open the water outlet hole 312, and the water in the filter element 20 can flow into the water outlet channel 12 through the water outlet hole 312; when the pressure inside the shell 30 is less than or equal to 0.05Mpa, the one-way valve 541 can close the water outlet hole 312 to prevent the water in the filter element 20 from flowing into the water outlet channel 12 through the water outlet hole 312.

[0084] According to some embodiments of the present invention, referring to Figure 1-Figure 2 , Figure 7-Figure 8 , Figure 13-14 , Fig.19 , Fig. 22 The filter element 20 further includes a central tube 61 and a filter material cover 64. The central tube 61 is disposed in the housing 30, and one end of the central tube 61 can abut against the bottom wall of the housing 30. For example, a limiting structure 321 is disposed on the bottom wall of the lower housing 32. The limiting structure 321 is used to limit the relative position of the central tube 61, which can improve the stability of the structure of the central tube 61. A water hole 611 is formed on the peripheral wall of the central tube 61. For example, the number of the water holes 611 can be set to one or more, and the multiple water holes 611 can be arranged around the central tube 61 at intervals.

[0085] The filter material cover 64 is arranged in the housing 30, and the filter material cover 64 is located on the side of the central tube 61 facing the water inlet hole 311. The filter material cover 64, the outer wall surface of the central tube 61 and the inner wall surface of the housing 30 cooperate to define a filter material space 63, and the filter material space 63 is filled with filter material. For example, the filter material can be an adsorbent filter material such as PP cotton, activated carbon, magnet, etc., or it can be a filter material such as resin, TAC, ASP, MSAP, etc. that absorbs and replaces the anions and cations in the water or prevents the anions and cations in the water from forming scale after combining. The inner side of the central tube 61 defines a central channel 62, and the filter material space 63 is connected to the water inlet channel 11 through the water inlet hole 311, and the central channel 62 is connected to the water outlet channel 12 through the water outlet hole 312, and the filter material space 63 and the central channel 62 are connected through the water hole 611. For example, the size of the water hole 611 is smaller than the size of the filter material, which can prevent the filter material in the filter material space 63 from flowing into the central channel 62 through the water hole 611. Water in the water inlet channel 11 can flow into the filter material space 63 through the water inlet hole 311 , water filtered by the filter material in the filter material space 63 can flow into the central channel through the water hole 611 , and water in the central channel can flow into the water outlet channel 12 through the water outlet hole 312 .

[0086] According to some embodiments of the present invention, referring to Figure 1-Figure 2 , Figure 7-Figure 8 , Figure 13-14 , Fig.19 , Fig. 22 The filter cover 64 is formed with a through hole, which penetrates the filter cover 64. The filter element 20 further includes a filter screen 65, which is arranged on the filter cover 64 and covers the through hole. The filter screen 65 can prevent the filter material from spilling out of the filter space 63, and the filter screen 65 can filter most of the silt and suspended matter in the water to improve the filtering effect of the filter element 20. For example, the filter screen 65 can be a stainless steel filter screen with a mesh size of 20-100.

[0087] Specific reference Figure 1 , Figure 7 , Fig.13 As shown, the arrow direction in the figure is the water flow direction. When the filter element 20 is in use, the water in the water inlet channel 11 can flow to the filter screen 65 through the water inlet hole 311, and the filter screen 65 can filter most of the sediment and suspended matter in the water. The water filtered by the filter screen 65 can flow into the filter material space 63. The filter material in the filter material space 63 can filter the water to filter out impurities in the water. The filtered water can flow into the central channel 62 through the water hole 611, and the water in the central channel 62 can flow into the water outlet channel 12 through the water outlet hole 312. In this way, the filter element 20 completes the filtration of water and improves the quality of water.

[0088] Refer to the following Figure 1-Figure 2 , Figure 7-Figure 8 , Figure 13-14 , Fig.19 , Fig. 22 A filter element 20 and a filter element assembly 100 having the same according to an embodiment of the present invention are described.

[0089] The filter element assembly 100 includes a filter element mounting seat 10 and a filter element 20 . The filter element mounting seat 10 has a water inlet channel 11 and a water outlet channel 12 . The filter element 20 is detachably connected to the filter element mounting seat 10 .

[0090] The filter element 20 includes an upper shell 31, a lower shell 32, a water stopper 51, an elastic member 52, a positioning member 53, a central tube 61, a filter material cover 64 and a filter screen 65. The upper shell 31 and the lower shell 32 can be threadedly connected to form the shell 30. The water stopper 51, the elastic member 52, the positioning member 53, the central tube 61, the filter material cover 64 and the filter screen 65 are all arranged in the shell 30, and the filter screen 65 is installed in the through hole of the filter material cover 64. The bottom wall of the lower shell 32 is provided with a plurality of limiting structures 321, one end of the central tube 61 is arranged in the limiting structure 321, and the limiting structure 321 is used to make the central tube 61 coaxial with the upper shell 31 and the lower shell 32. The filter material cover 64 is located at one end of the central tube 61 away from the bottom wall of the shell 30. A fifth sealing ring 66 is provided between the outer peripheral wall of the filter material cover 64 and the inner wall of the lower shell 32, which is used to seal the gap between the outer peripheral wall of the filter material cover 64 and the inner wall of the lower shell 32 to prevent part of the water from flowing directly into the filter material space 63 from the gap between the outer peripheral wall of the filter material cover 64 and the inner wall of the lower shell 32 without passing through the filter screen 65, so that a small amount of impurities such as mud and suspended matter in the water cannot be filtered, thereby weakening the filtering effect of the filter element 20.

[0091] The upper shell 31 has a water inlet 311 and a water outlet 312. The filter material cover 64, the outer wall of the central tube 61 and the inner wall of the shell 30 cooperate to define a filter material space 63. The filter material space 63 is filled with filter material. The inner side of the central tube 61 defines a central channel 62. A water hole 611 is formed on the peripheral wall of the central tube 61. The water hole 611 can connect the filter material space 63 with the central channel 62. The water inlet 311 can connect the water inlet channel 11 with the filter material space 63. The water outlet 312 can connect the water outlet channel 12 with the central channel 62. The water stop 51 can open or close the water inlet 311. A one-way valve 541 is arranged between the central channel 62 and the water outlet 312. When the water pressure in the central channel 62 is greater than the pressure of the one-way valve 541, the one-way valve 541 opens the water outlet 312.

[0092] In a specific example, referring to Figure 1-Figure 2 When the filter element 20 is in use, the water in the water inlet channel 11 can push the water stop member 51 to move, and the thrust exerted on the water stop member 51 can overcome the elastic force of the elastic member 52, so that the water stop member 51 remains in the open position, and the water stop member 51 can open the water inlet hole 311.

[0093] In another specific example, referring to Figure 7-Figure 8 The filter element mounting seat 10 also includes a mounting seat body 13 and a push rod 14. The mounting seat body 13 is formed with a water inlet channel 11. The mounting seat body 13 is detachably connected to the filter element 20. When the filter element 20 is installed on the mounting seat body 13, the push rod 14 can push the water stop member 51 to move. When the water stop member 51 moves, it can overcome the elastic force of the elastic member 52 so that the water stop member 51 remains in the open position. The water stop member 51 can open the water inlet hole 311.

[0094] In yet another specific example, referring to Figure 13-14 The filter element 20 also includes a push rod 40, which is inserted into the water inlet hole 311 and abuts against the water stop member 51. When the filter element 20 is installed on the filter element mounting seat 10, the filter element mounting seat 10 abuts against the push rod 40. The filter element mounting seat 10 can push the push rod 14 to move. When the push rod 40 moves, it can push the water stop member 51 to move, so that the water stop member 51 remains in the open position, and the water stop member 51 can open the water inlet hole 311.

[0095] In the above three examples, the water stop 51 can open the water inlet hole 311. After the water stop 51 opens the water inlet hole 311, the water in the water inlet channel 11 can flow to the filter screen 65 through the water inlet hole 311. The filter screen 65 can filter most of the silt and suspended matter in the water. The water filtered by the filter screen 65 can flow into the filter material space 63. The filter material in the filter material space 63 can filter the water to filter out impurities in the water. The filtered water can flow into the central channel 62 through the water hole 611. When the water pressure in the central channel 62 is greater than the pressure of the one-way valve 541, the one-way valve 541 opens the water outlet hole 312, and the water in the central channel 62 can flow into the water outlet channel 12 through the water outlet hole 312. In this way, the filter element 20 completes the filtration of water and improves the quality of water.

[0096] When the filter element 20 is removed from the filter element mounting seat 10, the rebound force of the elastic member 52 pushes the water stop member 51 to move so that the water stop member 51 remains in the closed position, and the water stop member 51 can close the water inlet hole 311; the water pressure in the central channel 62 is less than or equal to the pressure of the one-way valve 541, and the one-way valve 541 can close the water outlet hole 312 to seal the water in the filter element 20 in the filter element 20, preventing the water in the filter element 20 from flowing out from the water inlet hole 311 and the water outlet hole 312, thereby improving the user experience.

[0097] According to some embodiments of the present invention, referring to Figure 3-Figure 4 , Figure 9-10 , Figure 15-16 , Fig. 20 , Fig.23, the filter element 20 also includes a first filter material box 70, one end of which can be in contact with the bottom wall of the housing 30. For example, a limiting structure 321 is provided on the bottom wall of the lower housing 32, and the limiting structure 321 is used to limit the relative position of the first filter material box 70, which can improve the stability of the structure of the first filter material box 70. The first filter material box 70 has a filter material cavity 75, and the filter material cavity 75 is filled with filter material, for example, the filter material can be an adsorbent filter material such as PP cotton, activated carbon, magnet, etc., or it can be a resin, TAC, ASP, MSAP, etc. that absorbs and replaces anions and cations in water or prevents anions and cations in water from combining to form scale. The peripheral wall of the first filter material box 70 has a water mesh 72, and the outer wall surface of the first filter material box 70 cooperates with the inner wall surface of the housing 30 to define a water guide channel 76, the water guide channel 76 is connected to the water inlet channel 11 through the water inlet hole 311, the filter material cavity 75 is connected to the water outlet channel 12 through the water outlet hole 312, and the filter material cavity 75 and the water guide channel 76 are connected through the water mesh 72. Water in the water inlet channel 11 can flow into the water guide channel 76 through the water inlet hole 311, and water in the water guide channel 76 can flow into the filter material cavity 75 through the water mesh 72, and water filtered by the filter material in the filter material cavity 75 can flow into the water outlet channel 12 through the water outlet hole 312.

[0098] According to some embodiments of the present invention, referring to Figure 3-Figure 4 , Figure 9-10 , Figure 15-16 , Fig. 20 , Fig.23 The first filter material box 70 includes a first material barrel 71 and a filter screen 74. The peripheral wall of the first material barrel 71 has a filter screen mounting frame 73, and the filter screen 74 is detachably mounted on the filter screen mounting frame 73. The water-passing mesh 72 is arranged on the first material barrel 71. The filter screen 74 can prevent the filter material from spilling out of the filter material cavity 75, and the filter screen 74 can filter most of the silt and suspended matter in the water to improve the filtering effect of the filter element 20. For example, the filter screen 74 can be a stainless steel filter screen with a mesh size between 20 and 100.

[0099] Specific reference Figure 3 , Fig. 9 , Fig.15 As shown, the arrow direction in the figure is the water flow direction. When the filter element 20 is in use, the water in the water inlet channel 11 can flow into the water guide channel 76 through the water inlet hole 311, and the water in the water guide channel 76 can flow to the filter screen 74. The filter screen 74 can filter most of the sediment and suspended matter in the water. The water filtered by the filter screen 74 can flow into the filter material cavity 75 through the water mesh 72. The filter material in the filter material cavity 75 can filter the water to filter out impurities in the water. The filtered water can flow into the water outlet channel 12 through the water outlet hole 312. In this way, the filter element 20 completes the filtration of water and improves the quality of water.

[0100] Refer to the following Figure 3-Figure 4 , Figure 9-10 , Figure 15-16 , Fig. 20 , Fig.23 A filter element 20 and a filter element assembly 100 having the same according to an embodiment of the present invention are described.

[0101] The filter element assembly 100 includes a filter element mounting seat 10 and a filter element 20 . The filter element mounting seat 10 has a water inlet channel 11 and a water outlet channel 12 . The filter element 20 is detachably connected to the filter element mounting seat 10 .

[0102] The filter element 20 includes an upper shell 31, a lower shell 32, a water stop 51, an elastic member 52, and a first filter material box 70. The upper shell 31 and the lower shell 32 can be threadedly connected to form the shell 30. The water stop 51, the elastic member 52, and the first filter material box 70 are all arranged in the shell 30. The bottom wall of the lower shell 32 is provided with a plurality of limiting structures 321, and one end of the first filter material box 70 is arranged in the limiting structure 321. The limiting structure 321 is used to make the first filter material box 70 coaxial with the upper shell 31 and the lower shell 32.

[0103] The first filter material box 70 includes a first material barrel 71 and a filter screen 74. The peripheral wall of the first material barrel 71 has a filter screen mounting frame 73. The filter screen 74 is detachably mounted on the filter screen mounting frame 73. The first material barrel 71 is provided with a water-passing mesh hole 72. An end of the water stop 51 close to the elastic member 52 is provided with a mounting groove 511. One end of the first filter material box 70 is provided with a second flange 731. One end of the elastic member 52 is placed in the mounting groove 511, and the other end of the elastic member 52 is placed in the second flange 731 to ensure the radial stability of the water stop 51 and the elastic member 52.

[0104] The upper shell 31 has a water inlet 311 and a water outlet 312. The first filter material box 70 has a filter material cavity 75 filled with filter material. The outer wall surface of the first filter material box 70 and the inner wall surface of the shell 30 cooperate to define a water channel 76. The water inlet 311 can connect the water inlet channel 11 with the water channel 76, the water mesh 72 can connect the water channel 76 with the filter material cavity 75, and the water outlet 312 can connect the filter material cavity 75 with the water outlet channel 12. The water stop 51 can open or close the water inlet 311. A one-way valve 541 is set between the central channel 62 and the water outlet 312. When the water pressure in the water channel 76 is greater than the pressure of the one-way valve 541, the one-way valve 541 opens the water outlet 312.

[0105] In a specific example, referring to Figure 3-Figure 4 When the filter element 20 is in use, the water in the water inlet channel 11 can push the water stop member 51 to move, and the thrust exerted on the water stop member 51 can overcome the elastic force of the elastic member 52, so that the water stop member 51 remains in the open position, and the water stop member 51 can open the water inlet hole 311.

[0106] In another specific example, referring to Figure 9-10 The filter element mounting seat 10 further comprises a mounting seat body 13 and a push rod 14. The mounting seat body 13 is formed with a water inlet channel 11. The mounting seat body 13 is detachably connected to the filter element 20. When the filter element 20 is mounted on the mounting seat body 13, the push rod 14 can push the water stop member 51 to move. When the water stop member 51 moves, it can overcome the elastic force of the elastic member 52, so that the water stop member 51 remains in the open position, and the water stop member 51 can open the water inlet hole 311.

[0107] In yet another specific example, referring to Figure 15-16 The filter element 20 also includes a push rod 40, which is inserted into the water inlet hole 311 and abuts against the water stop member 51. When the filter element 20 is installed on the filter element mounting seat 10, the filter element mounting seat 10 abuts against the push rod 40. The filter element mounting seat 10 can push the push rod 14 to move. When the push rod 40 moves, it can push the water stop member 51 to move, so that the water stop member 51 remains in the open position, and the water stop member 51 can open the water inlet hole 311.

[0108] In the above three examples, the water stopper 51 can open the water inlet hole 311. After the water stopper 51 opens the water inlet hole 311, the water in the water inlet channel 11 can flow into the water guide channel 76 through the water inlet hole 311, and the water in the water guide channel 76 can flow to the filter screen 74. The filter screen 74 can filter most of the sediment and suspended matter in the water. The water filtered by the filter screen 74 can flow into the filter material cavity 75 through the water mesh 72. The filter material in the filter material cavity 75 can filter the water to filter out impurities in the water. The water pressure in the filter material cavity 75 is greater than the pressure of the one-way valve 541. The one-way valve 541 opens the water outlet hole 312, and the water in the central flow channel can flow into the water outlet channel 12 through the water outlet hole 312. In this way, the filter element 20 completes the filtration of water and improves the quality of water.

[0109] When the filter element 20 is removed from the filter element mounting seat 10, the rebound force of the elastic member 52 pushes the water stop member 51 to move so that the water stop member 51 remains in the closed position, and the water stop member 51 can close the water inlet hole 311; the water pressure in the filter material chamber 75 is less than or equal to the pressure of the one-way valve 541, and the one-way valve 541 can close the water outlet hole 312 to seal the water in the filter element 20 in the filter element 20, thereby preventing the water in the filter element 20 from flowing out from the water inlet hole 311 and the water outlet hole 312, thereby improving the user experience.

[0110] According to some embodiments of the present invention, referring to Figure 5-Figure 6 , Figure 11-Figure 12 , Figure 17-Figure 18 , Fig.21 , Fig.24The filter element 20 further includes a second filter material box 80. For example, a limiting structure 321 is provided on the bottom wall of the lower housing 32. The limiting structure 321 is used to limit the relative position of the second filter material box 80, which can improve the structural stability of the second filter material box 80. The second filter material box 80 has a filter material accommodating chamber 83 filled with filter material. The second filter material box 80 has a filter material exchange hole 821. A water flow channel 84 is defined between the second filter material box 80 and the housing 30. One end of the water flow channel 84 is connected to the water inlet channel 11 through the water inlet hole 311, and the other end of the water flow channel 84 is connected to the water outlet channel 12 through the water outlet hole 312. The water flow channel 84 and the filter material accommodating chamber 83 are connected through the filter material exchange hole 821.

[0111] For example, the filter material can be based on sugar, wax, etc., and added with solutes with special odors, such as lavender, lemon, etc., to improve the user's bathing comfort, or added with hyaluronic acid and other substances that can replenish water, or added with ascorbic acid and other substances that can remove residual chlorine in the water.

[0112] Specific reference Figure 5 , Fig.11 , Fig.17 As shown, the arrow direction in the figure is the water flow direction. When the filter element 20 is in use, the water in the water inlet channel 11 can flow into the water flow channel 84 through the water inlet hole 311, and part of the water in the water flow channel 84 can flow into the filter material receiving chamber 83 through the filter material exchange hole 821, so that the filter material in the filter material receiving chamber 83 is slowly released and dissolved, and the water in the filter material receiving chamber 83 can bring the slowly released filter material out of the filter material receiving chamber 83, and this part of the water can flow into the water outlet channel 12 through the water outlet hole 312; another part of the water in the water flow channel 84 can directly flow into the water outlet channel 12 through the water outlet hole 312. In this way, the filter material in the filter element 20 can be slowly released in the water to meet the user's usage needs.

[0113] Refer to the following Figure 5-Figure 6 , Figure 11-Figure 12 , Figure 17-Figure 18 , Fig.21 , Fig.24 A filter element 20 and a filter element assembly 100 having the same according to an embodiment of the present invention are described.

[0114] The filter element assembly 100 includes a filter element mounting seat 10 and a filter element 20 . The filter element mounting seat 10 has a water inlet channel 11 and a water outlet channel 12 . The filter element 20 is detachably connected to the filter element mounting seat 10 .

[0115] The filter element assembly 100 includes a filter element mounting seat 10 and a filter element 20. The filter element mounting seat 10 has an inlet flow channel 11 and an outlet flow channel 12. The filter element 20 is detachably connected to the filter element mounting seat 10. The filter element 20 includes an upper shell 31, a lower shell 32, a water stop 51, an elastic member 52, a positioning member 53, and a second filter material box 80. The upper shell 31 and the lower shell 32 can be threadedly connected to form a shell 30. The water stop 51, the elastic member 52, the positioning member 53, and the second filter material box 80 are all arranged in the shell 30. The bottom wall of the lower shell 32 is provided with a plurality of limiting structures 321. One end of the second filter material box 80 is arranged in the limiting structure 321. The limiting structure 321 is used to make the second filter material box 80 coaxial with the upper shell 31 and the lower shell 32. The second filter material box 80 includes a second material barrel 81 and a material cover 82 . The end of the second material barrel 81 has an opening 811 . The material cover 82 is disposed on the opening 811 . The material cover 82 is provided with a filter material exchange hole 821 .

[0116] The inner peripheral wall of the upper shell 31 is provided with a positioning protrusion 313, and the positioning member 53 is located on the positioning protrusion 313, which can fix the position of the positioning member 53. The end of the water stop member 51 close to the elastic member 52 is provided with a mounting groove 511, and the end of the positioning member 53 close to the elastic member 52 is provided with a first flange 531. One end of the elastic member 52 is placed in the mounting groove 511, and the other end of the elastic member 52 is placed in the first flange 531, so as to ensure the radial stability of the water stop member 51 and the elastic member 52.

[0117] The upper shell 31 has a water inlet hole 311 and a water outlet hole 312, the second filter material box 80 has a filter material accommodating chamber 83, and a water flow channel 84 is defined between the second filter material box 80 and the shell 30. One end of the water flow channel 84 is connected to the water inlet channel 11 through the water inlet hole 311, and the other end of the water flow channel 84 is connected to the water outlet channel 12 through the water outlet hole 312. The water flow channel 84 and the filter material accommodating chamber 83 are connected through the filter material exchange hole 821. The water stop 51 can open or close the water inlet hole 311, and a one-way valve 541 is set between the water flow channel 84 and the water outlet hole 312. When the water pressure in the water flow channel 84 is greater than the pressure of the one-way valve 541, the one-way valve 541 opens the water outlet hole 312.

[0118] In a specific example, referring to Figure 5-Figure 6 When the filter element 20 is in use, the water in the water inlet channel 11 can push the water stop member 51 to move, and the thrust exerted on the water stop member 51 can overcome the elastic force of the elastic member 52, so that the water stop member 51 remains in the open position, and the water stop member 51 can open the water inlet hole 311.

[0119] In another specific example, referring to Figure 11-Figure 12The filter element mounting seat 10 also includes a mounting seat body 13 and a push rod 14. The mounting seat body 13 is formed with a water inlet channel 11. The mounting seat body 13 is detachably connected to the filter element 20. When the filter element 20 is installed on the mounting seat body 13, the push rod 14 can push the water stop member 51 to move. When the water stop member 51 moves, it can overcome the elastic force of the elastic member 52 so that the water stop member 51 remains in the open position. The water stop member 51 can open the water inlet hole 311.

[0120] In yet another specific example, referring to Figure 17-Figure 18 The filter element 20 also includes a push rod 40, which is inserted into the water inlet hole 311 and abuts against the water stop member 51. When the filter element 20 is installed on the filter element mounting seat 10, the filter element mounting seat 10 abuts against the push rod 40. The filter element mounting seat 10 can push the push rod 14 to move. When the push rod 40 moves, it can push the water stop member 51 to move, so that the water stop member 51 remains in the open position, and the water stop member 51 can open the water inlet hole 311.

[0121] In the above three examples, the water stop 51 can open the water inlet hole 311. After the water stop 51 opens the water inlet hole 311, the water in the water inlet channel 11 can flow into the water flow channel 84 through the water inlet hole 311, and part of the water in the water flow channel 84 can flow into the filter material holding chamber 83 through the filter material exchange hole 821, so that the filter material in the filter material holding chamber 83 is slowly released and dissolved, and the water in the filter material holding chamber 83 can bring the slowly released filter material out of the filter material holding chamber 83. When the water pressure in the water flow channel 84 is greater than the pressure of the one-way valve 541, the one-way valve 541 opens the water outlet hole 312, and this part of the water can flow into the water outlet channel 12 through the water outlet hole 312; another part of the water in the water flow channel 84 can directly flow into the water outlet channel 12 through the water outlet hole 312. In this way, the filter material in the filter element 20 can be slowly released in the water to meet the user's usage needs.

[0122] When the filter element 20 is removed from the filter element mounting seat 10, the rebound force of the elastic member 52 pushes the water stop member 51 to move so that the water stop member 51 remains in the closed position, and the water stop member 51 can close the water inlet hole 311; the water pressure in the water flow channel 84 is less than or equal to the pressure of the one-way valve 541, and the one-way valve 541 can close the water outlet hole 312 to seal the water in the filter element 20 in the filter element 20, preventing the water in the filter element 20 from flowing out from the water inlet hole 311 and the water outlet hole 312, thereby improving the user experience.

[0123] The water purification device according to the second embodiment of the present invention comprises the filter element assembly 100 according to the first embodiment of the present invention.

[0124] According to the water purification device of the embodiment of the present invention, by setting the above-mentioned filter element assembly 100, the water in the filter element 20 can be sealed in the filter element 20 when the filter element 20 is replaced, preventing the water in the filter element 20 from spilling out from the water inlet hole 311, thereby improving the user's usage experience and reducing the user's workload.

[0125] The water heater 90 according to the third embodiment of the present invention comprises the water purification device according to the second embodiment of the present invention.

[0126] According to the water heater 90 of the embodiment of the present invention, by providing the above-mentioned water purification device, the water in the filter element 20 can be sealed in the filter element 20 when the filter element 20 is replaced, preventing the water in the filter element 20 from spilling out from the water inlet hole 311, thereby improving the user's usage experience and reducing the user's workload.

[0127] In some specific examples, refer to Figure 28-Figure 29 , the arrow direction in the figure is the water flow direction, the water heater 90 includes a shell 91 and an inner tank 92, the inner tank 92 is arranged in the shell 91, and the filter element assembly 100 is arranged in the shell 91 and / or outside the shell 91. That is, the filter element assembly 100 can be arranged in the shell 91, or the filter element assembly 100 can be arranged in the shell 91, or the filter element assembly 100 can be arranged in the shell 91 and outside the shell 91.

[0128] When the filter element assembly 100 is disposed in the outer shell 91, the filter element assembly 100 does not need to occupy the external layout space, and the outer shell 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 outer shell 91, the filter element 20 can be easily replaced or repaired.

[0129] The water heater 90 further includes a water inlet pipe 93 and a water outlet pipe 94, and the filter element assembly 100 is connected in series to the water inlet pipe 93 and / or the water outlet pipe 94. That is, the filter element assembly 100 may be connected in series to the water inlet pipe 93, or the filter element assembly 100 may be connected in series to the water outlet pipe 94, or the filter element assembly 100 may be connected in series to the water inlet pipe 93 and the water outlet pipe 94. The filter element assembly 100 may include a pre-filter element 95 and a post-filter element 96, the pre-filter element 95 is connected in series to the water inlet pipe 93, and the post-filter element 96 is connected in series to the water outlet pipe 94. The filter element 20 according to the first embodiment of the present invention and the filter element 20 according to the second embodiment of the present invention may be the pre-filter element 95, and the filter element 20 according to the third embodiment of the present invention may be the post-filter element 96.

[0130] When the filter element assembly 100 is connected in series to the water inlet pipe 93, one end of the upstream water flow of the water inlet pipe 93 is connected to the water inlet channel 11 of the filter element mounting seat 10, and the water outlet channel 12 of the filter element mounting seat 10 is connected to one end of the downstream water flow of the water inlet pipe 93. In this way, the water flow of the water inlet pipe 93 flows from the water inlet channel 11 into the filter element 20, and after being filtered by the filter element 20, the water flows from the water outlet channel 12 into the downstream of the water inlet pipe 93.

[0131] When the filter element assembly 100 is connected in series to the water outlet pipe 94, the upstream end of the water flow of the water outlet pipe 94 is connected to the water inlet channel 11 of the filter element mounting seat 10, and the water outlet channel 12 of the filter element mounting seat 10 is connected to the downstream end of the water flow of the water outlet pipe 94. In this way, the water flow of the water outlet pipe 94 flows from the water inlet channel 11 into the filter element 20, and after being filtered by the filter element 20, the water flows from the water outlet channel 12 into the downstream of the water outlet pipe 94.

[0132] When the filter element assembly 100 is connected in series to the water inlet pipe 93, the water quality of the water flowing into the water heater 90 can be improved, thereby improving the water quality of the water flowing out of the water heater 90 and increasing the service life of the water heater 90; when the filter element assembly 100 is connected in series to the water outlet pipe 94, a sustained-release substance beneficial to the skin can be added to the filter element 20 to meet the user's usage needs.

[0133] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, 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 "multiple" is two or more, unless otherwise clearly and specifically defined.

[0134] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; 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.

[0135] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" 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 representation of the above terms does 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.

[0136] 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 flow channel; A filter element, wherein the filter element is detachably connected to the filter element mounting seat, and the filter element comprises: A shell, wherein the shell has a water inlet hole, and the water inlet hole is connected to the water inlet channel; A water stop member, the water stop member is arranged in the housing and located at the water inlet hole, the water stop member has an open position for opening the water inlet hole and a closed position for closing the water inlet hole; A positioning member and an elastic member, wherein the positioning member is arranged in the shell and fixed to the shell, the elastic member is connected between the positioning member and the water stop member, and the elastic member is used to keep the water stop member in the closed position.

2. The filter element assembly according to claim 1, characterized in that: The filter element mounting seat includes a mounting seat body and a push rod, the mounting seat body forms the water inlet channel, 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.

3. The filter element assembly according to claim 2, characterized in that: The mounting seat body and the ejector rod are integrally formed.

4. The filter element assembly according to claim 1, characterized in that: The filter element includes: a push rod, which is inserted into the water inlet hole and cooperates with the clearance of the peripheral wall of the water inlet hole, one end of the push rod abuts against the water stop member and the other end 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.

5. The filter element assembly according to claim 4, characterized in that: The push rod includes a rod body and a positioning boss. The positioning boss is arranged at one end of the rod body facing the water stop member. The housing is provided with a positioning groove matched with the positioning boss.

6. The filter element assembly according to claim 1, characterized in that: The filter element mounting seat also has a water outlet channel, the shell also has a water outlet hole, the water inlet hole is connected to the water inlet channel, and the filter element also includes: a water outlet valve, the water outlet valve is arranged at the water outlet hole position for opening or closing the water outlet hole.

7. The filter element assembly according to claim 6, characterized in that: The water outlet valve is a one-way valve, and the one-way valve is configured to open the water outlet hole when the pressure in the housing reaches a preset pressure.

8. The filter element assembly according to any one of claims 1 to 7, characterized in that: The filter element also includes: 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 hole. 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 space. The filter material space is filled with filter material. The inner side of the central tube defines a central channel. The filter material space is connected to the water inlet channel through the water inlet hole, the central channel is connected to the water outlet channel through the water outlet hole, and the filter material space and the central channel are connected through the water hole.

9. The filter element assembly according to claim 8, 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.

10. The filter element assembly according to any one of claims 1 to 7, characterized in that: The filter element also includes: A first filter material box, wherein the first filter material box has a filter material cavity therein, the filter material cavity is filled with filter material, the peripheral wall of the first filter material box has a water-passing mesh, the outer wall surface of the first filter material box and the inner wall surface of the shell cooperate to define a water guide channel, the water guide channel is connected to the water inlet channel through the water inlet hole, the filter material cavity is connected to the water outlet channel through the water outlet hole, and the filter material cavity and the water guide channel are connected through the water-passing mesh.

11. The filter element assembly according to claim 10, characterized in that: The first filter material box comprises: A first barrel, wherein the peripheral wall of the first barrel has a filter screen mounting frame; A filter screen is detachably mounted on the filter screen mounting frame.

12. The filter element assembly according to any one of claims 1 to 7, characterized in that: The filter element also includes: A second filter material box, wherein the second filter material box has a filter material accommodating cavity, the filter material accommodating cavity is filled with filter material, the second filter material box has a filter material exchange hole, a water flow channel is defined between the second filter material box and the shell, one end of the water flow channel is connected to the water inlet channel through the water inlet hole, the other end of the water flow channel is connected to the water outlet channel through the water outlet hole, and the water flow channel and the filter material accommodating cavity are connected through the filter material exchange hole.

13. A water purification device, characterized in that: A filter element assembly comprising any one of claims 1-12.

14. A water heater, characterized in that: Including the water purification equipment described in claim 13.

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