Filter element cap for water purifier, filter bottle for water purifier and water purifier

Abstract

The present invention discloses a filter cartridge cover for a water purifier, a filter bottle for a water purifier, and a water purifier, comprising: a filter cartridge body; a filter cartridge cover, the filter cartridge cover is arranged on the filter cartridge body and has a first through port, a second through port, a first connecting port, and a second connecting port; a first filter assembly, the first filter assembly is arranged in the filter cartridge body and has a first filter cavity, the first filter cavity is connected to the first through port and the second through port respectively; a second filter assembly, the second filter assembly is arranged in the filter cartridge body and installed between the first filter assembly and the filter cartridge cover, the second filter assembly has a second filter cavity, the second filter cavity is connected to the first connecting port and the second connecting port respectively, and the first filter cavity and the second filter cavity are not connected to each other. According to the filter bottle for a water purifier of the present invention, the volume of the water purifier can be reduced by arranging the first filter assembly and the second filter assembly as a composite structure stacked up and down, and making the first filter cavity and the second filter cavity not connected to each other.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification, and in particular to a filter element cover for a water purifier, a filter bottle for a water purifier, and a water purifier having the filter bottle for a water purifier. Background Art

[0002] The integration and compounding of water purification filter elements is the development trend of water purifiers in the future, in order to reduce the size of the whole machine, improve the experience and cost of changing the filter element. The composite filter elements in the related technology mostly adopt the form of primary filter element and secondary filter element arranged in series in the same filter bottle, resulting in a large number of filter bottles and a large volume of water purifiers. 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 provides a filter bottle for a water purifier, which can reduce the volume of the water purifier.

[0004] The present invention also provides a water purifier having the filter bottle for the water purifier.

[0005] The invention also provides a filter element cover for a water purifier.

[0006] According to the first aspect of the present invention, a filter bottle for a water purifier includes: a filter cartridge body; a filter cartridge cover, wherein the filter cartridge cover is disposed on the filter cartridge body and has a first through port, a second through port, a first connecting port, and a second connecting port; a first filter assembly, wherein the first filter assembly is disposed in the filter cartridge body and has a first filter cavity, and the first filter cavity is connected to the first through port and the second through port, respectively; a second filter assembly, wherein the second filter assembly is disposed in the filter cartridge body and installed between the first filter assembly and the filter cartridge cover, the second filter assembly has a second filter cavity, and the second filter cavity is connected to the first connecting port and the second connecting port, respectively, and the first filter cavity and the second filter cavity are not connected to each other.

[0007] According to the filter bottle for a water purifier according to an embodiment of the present invention, the volume of the water purifier can be reduced by arranging the first filter component and the second filter component into a composite structure stacked up and down, and making the first filter cavity and the second filter cavity unconnected.

[0008] In addition, the filter bottle for a water purifier according to an embodiment of the present invention also has the following additional technical features:

[0009] According to some embodiments of the present invention, the filter element cover has a first sealing ring and a second sealing ring which are spaced apart from each other, the second sealing ring is located on the inner side of the first sealing ring, the first filter assembly is sealed in cooperation with the first sealing ring, the second filter assembly is sealed in cooperation with the second sealing ring, the space between the first sealing ring and the filter element cover is respectively connected to the first filter cavity and the first through port, and the space between the first sealing ring and the second sealing ring is respectively connected to the first filter cavity and the second through port.

[0010] In some embodiments of the present invention, the first filter assembly includes: a support sleeve, which is disposed in the filter element body; a first upper end cover, which covers the upper end of the support sleeve and defines the first filter cavity together with the support sleeve, and the first upper end cover is sealed with the first sealing ring.

[0011] In some specific embodiments of the present invention, the outer peripheral wall of the first upper end cover is provided with a first sealing boss, the lower end surface of the first sealing ring abuts against the upper surface of the first sealing boss, and the upper end surface of the supporting sleeve abuts against the lower surface of the first sealing boss.

[0012] In some embodiments of the present invention, the first filter assembly is spaced apart from the inner circumferential wall of the filter element body to form a first through flow channel, and the first through flow channel is respectively connected to the space between the first sealing ring and the filter element cover and the first filter cavity.

[0013] In some embodiments of the present invention, an upwardly open mounting groove is provided at the upper end of the first filter assembly, and the second filter assembly is mounted in the mounting groove.

[0014] In some specific embodiments of the present invention, the bottom wall of the mounting groove is provided with a first water hole connected to the first filter chamber, and the second filter assembly is spaced apart from the inner wall of the mounting groove to form a second flow channel, and the second flow channel is respectively connected to the space between the first sealing ring and the second sealing ring and the first water hole.

[0015] In some embodiments of the present invention, a third sealing ring is provided in the filter element cover, the third sealing ring is spaced apart from the second sealing ring and is located on the inner side of the second sealing ring, the third sealing ring is sealed with the second filter assembly, the space between the second sealing ring and the third sealing ring is respectively connected to the second filter cavity and the first connecting port, and the internal space of the third sealing ring is respectively connected to the second filter cavity and the second connecting port.

[0016] In some specific embodiments of the present invention, the second filter assembly includes: a filter body, which is sealed with the second sealing ring; a second upper end cover, which is arranged above the filter body and defines the second filter cavity together with the filter body, and the second upper end cover is sealed with the third sealing ring.

[0017] Furthermore, a second sealing boss is provided on the outer peripheral wall of the filter cartridge body, and the lower end surface of the second sealing ring abuts against the upper surface of the second sealing boss.

[0018] In some specific embodiments of the present invention, the second upper end cover and the filter cartridge body are spaced apart in the up and down directions to connect the space between the second sealing ring and the third sealing ring with the second filter cavity.

[0019] A water purifier according to an embodiment of the second aspect of the present invention comprises the filter bottle for a water purifier according to an embodiment of the first aspect of the present invention.

[0020] The water purifier according to the embodiment of the present invention uses the filter bottle for the water purifier as described above and has a small volume.

[0021] According to a filter cartridge cover for a water purifier according to an embodiment of the third aspect of the present invention, the filter cartridge cover has a first through port, a second through port, a first connecting port and a second connecting port, and a first sealing ring, a second sealing ring and a third sealing ring arranged at intervals from each other are arranged in the filter cartridge cover, the second sealing ring is located on the inner side of the first sealing ring, and the third sealing ring is located on the inner side of the second sealing ring, the first through port connects the space between the first sealing ring and the filter cartridge cover, the second through port connects the space between the first sealing ring and the second sealing ring, the first connecting port connects the space between the second sealing ring and the third sealing ring, and the second connecting port connects the internal space of the third sealing ring.

[0022] The filter element cover for a water purifier according to the embodiment of the present invention can seal the water path to form a first water path and a second water path that are not connected to each other, thereby realizing the compounding of the filter element.

[0023] 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

[0024] Figure 1 is an exploded view of a filter bottle for a water purifier according to an embodiment of the present invention;

[0025] Figure 2 is an exploded view of a filter bottle for a water purifier according to an embodiment of the present invention;

[0026] Figure 3 is a perspective view of a filter bottle for a water purifier according to an embodiment of the present invention;

[0027] Figure 4 is a schematic structural diagram of a filter bottle for a water purifier according to an embodiment of the present invention;

[0028] Figure 5 is a schematic structural diagram of a filter bottle for a water purifier according to an embodiment of the present invention;

[0029] Figure 6 is a cross-sectional view of a filter bottle for a water purifier according to an embodiment of the present invention;

[0030] Figure 7 is a cross-sectional view of a filter bottle for a water purifier according to an embodiment of the present invention;

[0031] Figure 8 is a cross-sectional view of a filter bottle for a water purifier according to an embodiment of the present invention;

[0032] Fig. 9 is a cross-sectional view of a filter bottle for a water purifier according to an embodiment of the present invention;

[0033] Fig.10 is a cross-sectional view of a filter bottle for a water purifier according to an embodiment of the present invention;

[0034] Fig.11 is a cross-sectional view of a filter bottle for a water purifier according to an embodiment of the present invention;

[0035] Fig.12 is a cross-sectional view of a filter bottle for a water purifier according to an embodiment of the present invention;

[0036] Fig.13 2 is a schematic structural diagram of a first filter assembly and a second filter assembly of a filter bottle for a water purifier according to an embodiment of the present invention;

[0037] Fig.14 2 is a schematic structural diagram of a first filter assembly and a second filter assembly of a filter bottle for a water purifier according to an embodiment of the present invention;

[0038] Fig.15 is a three-dimensional diagram of a filter element cover for a filter bottle of a water purifier according to an embodiment of the present invention;

[0039] Fig.16 2 is a schematic structural diagram of a filter element cover for a filter bottle of a water purifier according to an embodiment of the present invention;

[0040] Fig.17 2 is a schematic structural diagram of a filter element cover for a filter bottle of a water purifier according to an embodiment of the present invention;

[0041] Fig.182 is a schematic structural diagram of a filter element cover for a filter bottle of a water purifier according to an embodiment of the present invention;

[0042] Fig.19 is along Fig.18 The cross-sectional view of line AA in the figure;

[0043] Fig. 20 is along Fig.18 The cross-sectional view of line BB in FIG.

[0044] Fig.21 is along Fig.18 Cross-sectional view of line CC in;

[0045] Fig. 22 is along Fig.18 A cross-sectional view of the DD line in FIG.

[0046] Fig.23 is along Fig.18 A cross-sectional view of line EE in FIG.

[0047] Fig.24 2 is a schematic structural diagram of a filter cartridge body of a filter bottle for a water purifier according to an embodiment of the present invention;

[0048] Fig.25 2 is a schematic structural diagram of a filter cartridge body of a filter bottle for a water purifier according to an embodiment of the present invention;

[0049] Fig.26 is along Fig.25 A cross-sectional view of line FF in FIG.

[0050] Fig. 27 is along Fig.25 A cross-sectional view of the GG line in FIG.

[0051] Fig.28 is a three-dimensional diagram of a support sleeve for a filter bottle of a water purifier according to an embodiment of the present invention;

[0052] Fig.29 2 is a schematic structural diagram of a support sleeve for a filter bottle of a water purifier according to an embodiment of the present invention;

[0053] Fig.30 2 is a schematic structural diagram of a support sleeve for a filter bottle of a water purifier according to an embodiment of the present invention;

[0054] Fig.31 is a cross-sectional view of a support sleeve for a filter bottle of a water purifier according to an embodiment of the present invention;

[0055] Fig.32 is a perspective view of a first upper end cover of a filter bottle for a water purifier according to an embodiment of the present invention;

[0056] Fig.332 is a schematic structural diagram of a first upper end cover of a filter bottle for a water purifier according to an embodiment of the present invention;

[0057] Fig.34 2 is a schematic structural diagram of a first upper end cover of a filter bottle for a water purifier according to an embodiment of the present invention;

[0058] Fig.35 is a cross-sectional view of a first upper end cover of a filter bottle for a water purifier according to an embodiment of the present invention;

[0059] Fig.36 is a perspective view of a first lower end cover of a filter bottle for a water purifier according to an embodiment of the present invention;

[0060] Fig.37 2 is a schematic structural diagram of a first lower end cover of a filter bottle for a water purifier according to an embodiment of the present invention;

[0061] Fig.38 2 is a schematic structural diagram of a first lower end cover of a filter bottle for a water purifier according to an embodiment of the present invention;

[0062] Fig.39 is a cross-sectional view of a first lower end cover of a filter bottle for a water purifier according to an embodiment of the present invention;

[0063] Fig.40 is a three-dimensional diagram of a filter body of a filter bottle for a water purifier according to an embodiment of the present invention;

[0064] Fig.41 2 is a schematic structural diagram of a filter body of a filter bottle for a water purifier according to an embodiment of the present invention;

[0065] Fig.42 2 is a schematic structural diagram of a filter body of a filter bottle for a water purifier according to an embodiment of the present invention;

[0066] Fig.43 It is a cross-sectional view of a filter body of a filter bottle for a water purifier according to an embodiment of the present invention.

[0067] Reference numerals:

[0068] A filter bottle 10 for a water purifier, a first through flow channel 11, a second through flow channel 12, a first connecting flow channel 13, a second connecting flow channel 14, a positioning ring rib 15, a positioning convex rib 16, a buckle point 17, a sealing ring 18, a reinforcing rib 19,

[0069] Bottle body 100, first through port 101, second through port 102, first communication port 103, second communication port 104, positioning hole 105, filter cartridge body 110, filter cartridge cover 120, first sealing ring 121, second sealing ring 122, third sealing ring 123,

[0070] The first filter assembly 200, the first filter cavity 201, the first filter element 210, the support sleeve 220, the first upper end cover 230, the first water hole 231, the first upper positioning groove 232, the mounting groove 233, the first sealing boss 234, the first lower end cover 240, the first lower positioning groove 241, the positioning column 242,

[0071] The second filter assembly 300 , the second filter cavity 301 , the second filter element 310 , the filter body 320 , the second sealing boss 321 , the second upper end cover 330 , the second water hole 331 , the second upper positioning groove 332 , the second lower end cover 340 , and the second lower positioning groove 341 . DETAILED DESCRIPTION

[0072] 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.

[0073] The filter bottle 10 for a water purifier according to an embodiment of the first aspect of the present invention will be described below with reference to the accompanying drawings.

[0074] like Figure 1-Figure 43 As shown, the filter bottle 10 for a water purifier according to an embodiment of the present invention includes: a filter cartridge body 110, a filter cartridge cover 120, a first filter assembly 200 and a second filter assembly 300, the filter cartridge cover 120 is covered on the filter cartridge body 110, and the filter cartridge cover 120 has a first through port 101, a second through port 102, a first connecting port 103 and a second connecting port 104. Here, only the first through port 101 and the first connecting port 103 are used as water inlets, and the second through port 102 and the second connecting port 104 are used as water outlets as an example for relevant description, but it is not a limitation of the present invention. That is to say, in actual applications, the second through port 102 or the second connecting port 104 can also be used as a water inlet, and correspondingly, the first through port 101 or the first connecting port 103 can be used as a water outlet, that is, Fig.12 The water path shown in can flow in reverse direction.

[0075] The first filter assembly 200 is disposed in the filter cartridge body 110, and has a first filter cavity 201, which is respectively connected to the first through port 101 and the second through port 102. The second filter assembly 300 is disposed in the filter cartridge body 110, and is installed between the first filter assembly 200 and the filter cartridge cover 120, and has a second filter cavity 301, which is respectively connected to the first communication port 103 and the second communication port 104, and the first filter cavity 201 and the second filter cavity 301 are not connected to each other.

[0076] For example, the water path of the water purifier has at least three levels of filter elements, the first filter component 200 is the first-stage filter element, the second filter component 300 is the last-stage filter element, the raw water (such as tap water) enters the first filter cavity 201 from the first through port 101, flows out from the second through port 102 after being filtered by the first filter component 200, and enters the intermediate-stage filter element, enters the second filter cavity 301 from the first connecting port 103 after being filtered by the intermediate-stage filter element, and flows out from the second connecting port 104 after being filtered by the second filter component 300, thereby realizing the combination of the first-stage filter element and the last-stage filter element and reducing the number of filter bottles.

[0077] Therefore, according to the filter bottle 10 for a water purifier according to an embodiment of the present invention, by arranging the first filter component 200 and the second filter component 300 as a composite structure stacked up and down, and making the first filter cavity 201 and the second filter cavity 301 not connected to each other, the volume of the water purifier can be reduced, and the cost and manufacturability can be optimized.

[0078] According to some embodiments of the present invention, Fig.12 , Fig. 20 and Fig.21 As shown, the filter element cover 120 has a first sealing ring 121 and a second sealing ring 122 arranged at intervals, the second sealing ring 122 is located on the inner side of the first sealing ring 121, the first filter element 210 assembly is sealed with the first sealing ring 121, the second filter element 310 assembly is sealed with the second sealing ring 122, the space between the first sealing ring 121 and the filter element cover 120 is respectively connected to the first filter cavity 201 and the first through port 101, and the space between the first sealing ring 121 and the second sealing ring 122 is respectively connected to the first filter cavity 201 and the second through port 102. In this way, a waterway is formed and the sealing of the waterway is achieved.

[0079] In some embodiments of the present invention, Fig.12 As shown, the first filter assembly 200 includes: a cylindrical support sleeve 220 and a first upper end cap 230. The support sleeve 220 is arranged in the filter element body 110. The first upper end cap 230 covers the upper end of the support sleeve 220, and the first upper end cap 230 and the support sleeve 220 jointly define the first filter chamber 201, and the first upper end cap 230 is sealed with the first sealing ring 121. In this way, the support sleeve 220 is used to realize the support and positioning of the first filter assembly 200, so that the internal filter material (i.e., the first filter element 210) is strongly supported, and the internal filter material is prevented from shaking, loosening, and other poor positioning caused by the impact of the water flow, thereby enhancing reliability. For example, the upper and lower ends of the support sleeve 220 are open, and the upper end of the support sleeve 220 is sleeved on the outer peripheral wall of the first upper end cap 230.

[0080] In some specific embodiments of the present invention, Fig.12As shown, the outer peripheral wall of the first upper end cover 230 is provided with a first sealing boss 234, the lower end surface of the first sealing ring 121 abuts against the upper surface of the first sealing boss 234, and the upper end surface of the support sleeve 220 abuts against the lower surface of the first sealing boss 234. In this way, after the filter element cover 120 and the filter element body 110 are installed in place by spin welding, the support sleeve 220 is supported between the first sealing boss 234 and the inner bottom wall of the filter element body 110, and the first sealing boss 234 is firmly pressed against the lower end surface of the first sealing ring 121 upward.

[0081] In some embodiments of the present invention, Fig.12 As shown, the first filter assembly 200 is spaced apart from the inner circumferential wall of the filter element body 110 to form a first through flow channel 11, and the first through flow channel 11 is respectively connected to the space between the first sealing ring 121 and the filter element cover 120 and the first filter chamber 201, so that water entering from the first through port 101 flows into the first through flow channel 11 through the space between the first sealing ring 121 and the filter element cover 120, and then flows from top to bottom along the first through flow channel 11, and at the same time, the water in the first through flow channel 11 enters the first filter chamber 201.

[0082] In some embodiments of the present invention, Fig.12 As shown, the upper end of the first filter element 210 assembly is provided with an upwardly open mounting groove 233, and the second filter assembly 300 is installed in the mounting groove 233, so that the second filter assembly 300 can be supported upward, and the structure is relatively compact, which is conducive to further reducing the volume.

[0083] In some specific embodiments of the present invention, Fig.12 As shown, the bottom wall of the installation groove 233 is provided with a first water hole 231 connected to the first filter cavity 201, and the second filter assembly 300 is spaced apart from the inner wall of the installation groove 233 to form a second flow channel 12, and the second flow channel 12 is respectively connected to the space between the first sealing ring 121 and the second sealing ring 122 and the first water hole 231. In this way, the water in the first filter cavity 201 can enter the second flow channel 12 from the first water hole 231, then enter the space between the first sealing ring 121 and the second sealing ring 122, and then flow out from the second through port 102. For example, the inner bottom wall and the inner peripheral wall of the installation groove 233 are spaced apart from the second filter assembly 300.

[0084] In some embodiments of the present invention, Fig.12 , Fig. 22 and Fig.23As shown, a third sealing ring 123 is provided in the filter element cover 120, and the third sealing ring 123 is spaced apart from the second sealing ring 122, and the third sealing ring 123 is located inside the second sealing ring 122, and the third sealing ring 123 is sealed with the second filter element 310 assembly, and the space between the second sealing ring 122 and the third sealing ring 123 is respectively connected to the second filter cavity 301 and the first communication port 103, and the inner space of the third sealing ring 123 is respectively connected to the second filter cavity 301 and the second communication port 104. In this way, a waterway is formed and the sealing of the waterway is achieved.

[0085] In some specific embodiments of the present invention, Fig.12 As shown, the second filter assembly 300 includes: a filter body 320 and a second upper end cap 330. The filter body 320 is sealed with the second sealing ring 122. The second upper end cap 330 is arranged above the filter body 320, and the second upper end cap 330 and the filter body 320 jointly define a second filter cavity 301, and the second upper end cap 330 is sealed with the third sealing ring 123.

[0086] Among them, a sealing ring 18 can be provided between the first upper end cover 230 and the first sealing ring 121 to achieve sealing cooperation, a sealing ring 18 can be provided between the filter body 320 and the second sealing ring 122 to achieve sealing cooperation, and a sealing ring 18 can be provided between the second upper end cover 330 and the third sealing ring 123 to achieve sealing cooperation.

[0087] Furthermore, if Fig.12 As shown, the second sealing boss 321 of the outer peripheral wall of the filter body 320, the lower end face of the second sealing ring 122 abuts against the upper surface of the second sealing boss 321, so as to facilitate assembly, the structure is relatively reliable, and the sealing performance is good. After the filter element cover 120 and the filter element body 110 are installed in place by spin welding, the support sleeve 220 is supported at the first sealing boss 234 and the first sealing boss 234 is firmly pressed against the lower end face of the first sealing ring 121 upwards, and at the same time, the first upper end cover 230 supports the filter body 320 placed inside it upwards, and the second sealing boss 321 is firmly pressed against the lower end face of the second sealing ring 122, and the filter body 320 supports the second filter element 310 placed inside it upwards, so that the gap between the second upper end cover 330 and the third sealing ring 123 is 1mm-2mm.

[0088] In some specific embodiments of the present invention, Fig.12 As shown, the second upper end cover 330 and the filter body 320 are spaced apart in the up and down directions to connect the space between the second sealing ring 122 and the third sealing ring 123 with the second filter chamber 301, so that water in the space between the second sealing ring 122 and the third sealing ring 123 can enter the second filter chamber 301 through the gap between the second upper end cover 330 and the filter body 320.

[0089] In some specific embodiments of the present invention, Fig.18 As shown, reinforcing ribs 19 are respectively provided between the first sealing ring 121 and the inner wall of the filter element cover 120, between the first sealing ring 121 and the second sealing ring 122, and between the second sealing ring 122 and the third sealing ring 123 to strengthen the strength of the first sealing ring 121, the second sealing ring 122, the third sealing ring 123 and the overall strength of the filter element cover 120.

[0090] The filter bottle 10 for a water purifier according to some specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0091] like Figure 1-Figure 43 As shown, a filter bottle 10 for a water purifier according to an embodiment of the present invention includes: a bottle body 100 , a first filter assembly 200 and a second filter assembly 300 .

[0092] Specifically, the bottle body 100 has a first through port 101, a second through port 102, a first communication port 103, and a second communication port 104. In the description of the present invention, only the first through port 101 and the first communication port 103 are used as water inlets, and the second through port 102 and the second communication port 104 are used as water outlets. This is not a limitation of the present invention. That is to say, in practical applications, the second through port 102 or the second communication port 104 can also be used as a water inlet, and correspondingly, the first through port 101 or the first communication port 103 can be used as a water outlet. That is, Fig.12 The water path shown in can flow in reverse direction.

[0093] The first filter assembly 200 is disposed in the bottle body 100, and the first filter assembly 200 is respectively connected with the first through port 101 and the second through port 102 to form a first flow path. The second filter assembly 300 is disposed in the bottle body 100, and the second filter assembly 300 is respectively connected with the first communication port 103 and the second communication port 104 to form a second flow path. The second filter assembly 300 is located above the first filter assembly 200, and the first flow path and the second flow path are not connected to each other.

[0094] For example, the water path of the water purifier has at least three levels of filter elements, the first filter component 200 is the first-stage filter element, the second filter component 300 is the last-stage filter element, the raw water (such as tap water) enters the first filter component 200 from the first through port 101, flows out from the second through port 102 after being filtered by the first filter component 200, and enters the intermediate-stage filter element, enters the second filter component 300 from the first connecting port 103 after being filtered by the intermediate-stage filter element, and flows out from the second connecting port 104 after being filtered by the second filter component 300, thereby realizing the combination of the first-stage filter element and the last-stage filter element and reducing the number of filter bottles.

[0095] It can be understood that the first filter assembly 200 and the second filter assembly 300 can also be interchanged, that is, the first filter assembly 200 is the last-stage filter element, and the second filter assembly 300 is the first-stage filter element.

[0096] Therefore, according to the filter bottle 10 for a water purifier according to an embodiment of the present invention, by arranging the first filter component 200 and the second filter component 300 as a composite structure stacked up and down, and making the first flow path and the second flow path unconnected and independent of each other, the volume of the water purifier can be reduced and the cost and manufacturability can be optimized.

[0097] According to some embodiments of the present invention, Figure 1 As shown, the first filter assembly 200 includes: a cylindrical first filter element 210, the interior of the first filter element 210 is connected to the first through port 101, and the upper end opening of the first filter element 210 is connected to the second through port 102. Here, "cylindrical" refers to a structure that can enclose a cavity with at least one end open. For example, the first filter element 210 is a cylindrical shape with both ends open. In this way, water can enter the first filter element 210 from the peripheral wall of the first filter element 210, and then flow out from the hollow area at the center of the first filter element 210.

[0098] The first filter element 210 may be a composite of a PP filter element and an activated carbon filter element, or the first filter element 210 may be a PAC filter element to simplify the structure and improve the filtering effect.

[0099] In some embodiments of the present invention, Figure 7 As shown, the first filter assembly 200 includes: a cylindrical support sleeve 220, the first filter element 210 is supported in the support sleeve 220, and the second filter assembly 300 is installed at the upper end of the support sleeve 220. In this way, the support sleeve 220 is used to support and position the first filter assembly 200 and the second filter assembly 300, so that the internal filter material (i.e., the first filter element 210) is strongly supported, and the internal filter material is prevented from shaking, loosening, and other poor positioning caused by the impact of water flow, thereby enhancing reliability. For example, the upper and lower ends of the support sleeve 220 are open, and the upper end of the support sleeve 220 is sleeved on the outside of the second filter assembly 300.

[0100] In some specific embodiments of the present invention, Figure 8 As shown, the support sleeve 220 is spaced apart from the inner wall of the bottle body 100 to form a first through flow channel 11, and the first through flow channel 11 communicates the first through port 101 and the inner space of the support sleeve 220. For example, the outer peripheral wall of the support sleeve 220 is spaced apart from the inner peripheral wall of the bottle body 100, and the water coming in from the first through port 101 flows from top to bottom along the first through flow channel 11, and the water in the first through flow channel 11 enters the first filter element 210.

[0101] Furthermore, the support sleeve 220 may be provided with a water-permeable hole connecting the first flow channel 11 and the inner space of the support sleeve 220, or, as Figure 8 As shown, the lower end surface of the support sleeve 220 is spaced apart from the inner bottom wall of the bottle body 100, so that the water in the first flow channel 11 can flow into the inner space of the support sleeve 220 from the gap and flow through the first filter element 210 from bottom to top, thereby enhancing the filtering effect.

[0102] In some embodiments of the present invention, Fig.12 As shown, the first filter assembly 200 includes: a first upper end cover 230, the first upper end cover 230 is arranged in the bottle body 100, the first upper end cover 230 has a first water hole 231, the upper end of the first filter element 210 is installed on the first upper end cover 230, and the upper end opening of the first filter element 210 is connected to the second through port 102 through the first water hole 231. For example, the support sleeve 220 is sleeved on the outer peripheral wall of the first upper end cover 230.

[0103] In some specific embodiments of the present invention, Fig.12 As shown, the lower surface of the first upper end cover 230 is provided with an annular first upper positioning groove 232 arranged around the first water hole 231, and the upper end of the first filter element 210 is fitted in the first upper positioning groove 232, so that the structure is relatively reliable and easy to install and position. For example, a plurality of positioning ring ribs 15 are arranged in the first upper positioning groove 232, and the plurality of positioning ring ribs 15 are distributed at intervals, and each positioning ring rib 15 is arranged around the first water hole 231, and the upper end of the first filter element 210 is supported on the plurality of positioning ring ribs 15, so that the reliability and stability of the structure can be enhanced.

[0104] In some specific embodiments of the present invention, Fig.12 As shown, the first upper end cover 230 has an upwardly open mounting groove 233, and the second filter assembly 300 is installed in the mounting groove 233, so that the second filter assembly 300 can be supported upward, and the structure is relatively compact, which is conducive to further reducing the volume.

[0105] Furthermore, if Fig.12 As shown, the second filter assembly 300 is spaced apart from the inner wall of the mounting groove 233 to form a second through flow channel 12 connecting the second through port 102 and the first water through hole 231, whereby the water filtered by the first filter element 210 can enter the second through flow channel 12 from the first water through hole 231 and then flow out from the second through port 102, that is, the water filtered by the first filter element 210 can flow out from the gap between the second filter assembly 300 and the first upper end cover 230. For example, the first water through hole 231 is provided on the bottom wall of the mounting groove 233, and the inner bottom wall and the inner peripheral wall of the mounting groove 233 are spaced apart from the second filter assembly 300, respectively.

[0106] In some specific embodiments of the present invention, Fig.12 and Fig.40 As shown, at least one of the inner walls of the second filter assembly 300 and the mounting groove 233 is provided with a positioning rib 16, and the positioning rib 16 is located in the second through flow channel 12 to prevent the second filter assembly 300 from shaking relative to the first upper end cover 230, to prevent shaking caused by water flow impact, to achieve the positioning of the second filter assembly 300 in the first upper end cover 230, and to isolate the second through flow channel 12. The positioning rib 16 can be provided on the inner wall of the second filter assembly 300 or the mounting groove 233, or the second filter assembly 300 and the inner wall of the mounting groove 233 are respectively provided with a positioning rib 16, and the present invention does not make any special limitation on this.

[0107] It can be understood that the inner wall of the mounting groove 233 includes the inner bottom wall of the first upper end cover 230 and the inner peripheral wall of the first upper end cover 230. For example, the inner bottom wall of the first upper end cover 230 can be provided with a plurality of positioning ribs 16 to separate the bottom of the second filter assembly 300 from the inner bottom wall of the first upper end cover 230 by a gap of 2mm-3mm, so that water can flow out of the gap. For another example, the outer peripheral wall of the second filter assembly 300 is provided with a plurality of positioning ribs 16, and the plurality of positioning ribs 16 are distributed along the circumference of the second filter assembly 300 at intervals, and each positioning rib 16 extends along the axial direction of the second filter assembly 300. Among them, the positioning rib 16 can be provided with a buckle point 17 protruding outward, and when the second filter assembly 300 is installed in the first upper end cover 230, the buckle point 17 contacts the inner peripheral wall of the first upper end cover 230, so that the structural reliability is higher and the structure is more stable.

[0108] In some embodiments of the present invention, Fig.12 As shown, the first filter assembly 200 includes: a first lower end cap 240, the first lower end cap 240 is arranged in the bottle body 100, the upper surface of the first lower end cap 240 is provided with a first lower positioning groove 241, and the lower end of the first filter element 210 is fitted in the first lower positioning groove 241, so that the structure is relatively reliable and easy to install and position. For example, the first lower positioning groove 241 is an annular groove, and a plurality of positioning ring ribs 15 are arranged in the first lower positioning groove 241, and the plurality of positioning ring ribs 15 are distributed at intervals, and each positioning ring rib 15 is arranged around the center of the first lower positioning groove 241, and the lower end of the first filter element 210 is supported on the plurality of positioning ring ribs 15, so that the reliability and stability of the structure can be enhanced.

[0109] In some specific embodiments of the present invention, Fig.12As shown, one of the inner bottom wall of the bottle body 100 and the lower surface of the first lower end cover 240 is provided with a positioning column 242 and the other is provided with a positioning hole 105. The positioning column 242 fits in the positioning hole 105, so that it can play a guiding role during the installation of the internal filter material, and at the same time support and position the internal filter element to avoid shaking and loosening of the internal filter material caused by water impact.

[0110] For example, the inner bottom wall of the bottle body 100 is provided with a positioning hole 105, and the lower surface of the first lower end cover 240 is provided with a positioning column 242. The positioning hole 105 is configured as a blind hole opening upward, and the positioning column 242 is configured as a hollow part opening downward. The outer peripheral wall of the positioning column 242 is in contact with the inner peripheral wall of the positioning hole 105. A plurality of positioning ring ribs 15 may be provided between the lower surface of the first lower end cover 240 and the inner bottom wall of the bottle body 100. The plurality of positioning ring ribs 15 are distributed at intervals, and each positioning ring rib 15 is arranged around the positioning column 242, so that the structural reliability and stability can be enhanced, and a sealing effect can also be provided. Among them, the lower end of the positioning column 242 may be provided with a chamfer to play a guiding role.

[0111] In some embodiments of the present invention, the first filter element 210 is bonded to the first upper end cover 230 and the first lower end cover 240 by glue, so that the structure is more stable and easy to install and replace.

[0112] According to some embodiments of the present invention, Fig.12 As shown, the second filter assembly 300 includes: a cylindrical second filter element 310, the interior of the second filter element 310 is connected to the first connecting port 103, and the upper end opening of the second filter element 310 is connected to the second connecting port 104. Here, "cylindrical" refers to a structure that can enclose a cavity with at least one end open. For example, the second filter element 310 is a cylindrical shape with both ends open. In this way, water can enter the second filter element 310 from the peripheral wall of the second filter element 310, and then flow out from the hollow area at the center of the second filter element 310. Among them, the second filter element 310 can be an activated carbon filter element (such as a carbon rod) to improve the filtering effect.

[0113] In some embodiments of the present invention, Fig.12 As shown, the second filter assembly 300 includes: a filter body 320, the filter body 320 is installed at the upper end of the first filter assembly 200, and the second filter element 310 is arranged in the filter body 320, so that reliable support for the second filter element 310 can be achieved. For example, the filter body 320 is installed in the first upper end cover 230, so that the structure is relatively compact and relatively stable. The filter body 320 also plays a role in isolating the waterway between the first through port 101 and the second through port 102 from the waterway between the first communication port 103 and the second communication port 104, so that the two waterways are independent of each other and not connected to each other.

[0114] In some specific embodiments of the present invention, Fig.12 As shown, the second filter element 310 is spaced apart from the inner wall of the filter body 320 to form a first communication channel 13, and the interior of the second filter element 310 is connected to the first communication port 103 through the first communication channel 13. For example, the inner peripheral wall of the filter body 320 is spaced apart from the outer peripheral wall of the second filter element 310, and the water coming in from the first communication port 103 flows from top to bottom along the first communication channel 13, and the water in the first communication channel 13 enters the first filter element 210.

[0115] In some specific embodiments of the present invention, Fig.12 As shown, the upper end of the filter body 320 is open, and the second filter assembly 300 includes: a second upper end cover 330, which is arranged above the filter body 320, and the second upper end cover 330 has a second water hole 331. The upper end of the second filter element 310 is installed on the second upper end cover 330, and the upper end opening of the second filter element 310 is connected to the second connecting port 104 through the second water hole 331.

[0116] Furthermore, if Fig.12 As shown, the second upper end cover 330 and the filter body 320 are spaced apart in the up and down directions to connect the first connecting port 103 and the first connecting channel 13, so that water entering from the first connecting port 103 can enter the first connecting channel 13 through the gap between the second upper end cover 330 and the filter body 320.

[0117] In some specific embodiments of the present invention, Fig.12 As shown, the lower surface of the second upper end cover 330 is provided with a second upper positioning groove 332 arranged around the second water hole 331, and the upper end of the second filter element 310 fits in the second upper positioning groove 332, so that the structure is relatively reliable and easy to install and position. For example, a positioning ring rib 15 is provided in the second upper positioning groove 332, and the positioning ring rib 15 is arranged around the second water hole 331. The upper end of the second filter element 310 is supported on the positioning ring rib 15, so that the reliability and stability of the structure can be enhanced.

[0118] In some embodiments of the present invention, Fig.12 As shown, the second upper end cover 330 is provided with a second communication channel 14 communicating with the second water hole 331 and the second communication port 104 , so that the water filtered by the second filter element 310 can be stably guided to the second communication port 104 .

[0119] In some embodiments of the present invention, Fig.12As shown, the second filter assembly 300 includes: a second lower end cap 340, the second lower end cap 340 is arranged on the bottom wall of the filter body 320, the upper surface of the second lower end cap 340 is provided with a second lower positioning groove 341, and the lower end of the second filter element 310 is fitted in the second lower positioning groove 341, so that the structure is relatively reliable and easy to install and position. For example, the second lower positioning groove 341 is an annular groove, and the second lower positioning groove 341 is provided with a positioning ring rib 15 arranged around the center of the first lower positioning groove 241, and the lower end of the second filter element 310 is supported on the positioning ring rib 15, so that the structural reliability and stability can be enhanced.

[0120] In some embodiments of the present invention, the second filter element 310 is bonded to the second upper end cover 330 and the second lower end cover 340 respectively by glue, so that the structure is more stable and easy to install and replace.

[0121] It is understood that the bottle body 100 may include a filter cartridge body 110 and a filter cartridge cover 120. The filter cartridge cover 120 is disposed on the filter cartridge body 110 and has a first through port 101, a second through port 102, a first communication port 103, and a second communication port 104. The filter cartridge cover 120 and the filter cartridge body 110 are spin-welded together.

[0122] The following describes a water path forming method of a filter bottle 10 for a water purifier according to a specific embodiment of the present invention with reference to the accompanying drawings.

[0123] The first communication port 103 and the second communication port 104 are located between the first through port 101 and the second through port 102 in the horizontal direction. The first upper end cap 230 is sealed with the first sealing ring 121 through the sealing ring 18, so that the first through flow channel 11 is isolated from other waterways to form a PAC water inlet space; the first upper end cap 230 is sealed with the first sealing ring 121 through the sealing ring 18 and the filter body 320 is sealed with the second sealing ring 122 through the sealing ring 18, so that the second through flow channel 12 is isolated from other waterways to form a PAC water outlet space; the filter body 320 is sealed with the second sealing ring 122 through the sealing ring 18 and the second upper end cap 330 is sealed with the third sealing ring 123 through the sealing ring 18, so that the first communication flow channel 13 is isolated from other waterways to form a carbon rod water inlet space; the second upper end cap 330 is sealed with the third sealing ring 123 through the sealing ring 18, so that the second communication flow channel 14 is isolated from other waterways to form a carbon rod water outlet space. The filter cartridge body 320 is sealed with the second sealing ring 122 through the sealing ring 18, so as to isolate the PAC inlet and outlet water path from the carbon rod inlet and outlet water path, making the two water paths independent of each other.

[0124] After the tap water flows in from the first through port 101, it enters the flow channel between the inner wall of the filter cartridge body 110 and the support sleeve 220, and then enters the PAC filter material from the bottom of the filter cartridge body 110. After being filtered by the PAC filter material, it flows to the second through port 102 from the gap between the inner bottom wall of the first upper end cover 230 and the outer bottom wall of the filter cartridge body 320. After the RO pure water flows in from the first connecting port 103, it enters the gap between the filter cartridge body 320 and the carbon rod. After being filtered by the carbon rod, it directly flows out of the second connecting port 104 from the inner hole of the carbon rod.

[0125] The water purifier according to the second embodiment of the present invention comprises the filter bottle 10 for the water purifier according to the first embodiment of the present invention.

[0126] The water purifier according to the embodiment of the present invention uses the filter bottle 10 for the water purifier as described above, and has a small volume. .

[0127] According to the filter cartridge cover 120 for a water purifier according to the third aspect of the embodiment of the present invention, the filter cartridge cover 120 has a first through port 101, a second through port 102, a first connecting port 103 and a second connecting port 104, and a first sealing ring 121, a second sealing ring 122 and a third sealing ring 123 are arranged in the filter cartridge cover 120, the second sealing ring 122 is located on the inner side of the first sealing ring 121, and the third sealing ring 123 is located on the inner side of the second sealing ring 122. The first through port 101 connects the space between the first sealing ring 121 and the filter cartridge cover 120, the second through port 102 connects the space between the first sealing ring 121 and the second sealing ring 122, the first connecting port 103 connects the space between the second sealing ring 122 and the third sealing ring 123, and the second connecting port 104 connects the inner space of the third sealing ring 123.

[0128] The filter element cover 120 for a water purifier according to the embodiment of the present invention can seal the water path to form a first flow path and a second flow path that are not connected to each other, thereby realizing the compounding of the filter element.

[0129] Other structures and operations of the water purifier according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0130] 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.

[0131] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0132] In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features. A first feature "above" or "below" a second feature may include direct contact between the first and second features, or may include contact between the first and second features through another feature between them instead of direct contact. A first feature "above", "above" or "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.

[0133] It should be noted that in the description of the present invention, 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0134] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "specific embodiments", "examples" or "some examples" 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.

[0135] 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 bottle for a water purifier, characterized in that: include: Filter cartridge body; A filter element cover, the filter element cover is disposed on the filter element body and has a first through port, a second through port, a first communication port, and a second communication port; A first filter assembly, the first filter assembly is disposed in the filter element body and has a first filter cavity, the first filter cavity is communicated with the first through port and the second through port respectively; A second filter assembly, the second filter assembly is arranged in the filter cartridge body and installed between the first filter assembly and the filter cartridge cover, the second filter assembly has a second filter cavity, the second filter cavity is respectively connected to the first communication port and the second communication port, and the first filter cavity and the second filter cavity are not connected to each other; The filter element cover is provided with a first sealing ring and a second sealing ring arranged at intervals; The first filter assembly comprises: A supporting sleeve, the supporting sleeve being arranged in the filter element body; A first upper end cover, wherein the first upper end cover covers the upper end of the support sleeve and defines the first filter cavity together with the support sleeve, and the first upper end cover is in sealing cooperation with the first sealing ring; The outer peripheral wall of the first upper end cover is provided with a first sealing boss, the lower end surface of the first sealing ring abuts against the upper surface of the first sealing boss, and the upper end surface of the supporting sleeve abuts against the lower surface of the first sealing boss; The second filter assembly includes: a filter body and a second upper end cover; The outer peripheral wall of the filter body is provided with a second sealing boss, the lower end surface of the second sealing ring is in contact with the upper surface of the second sealing boss, and the first upper end cover supports the filter body placed therein upward.

2. The filter bottle for a water purifier according to claim 1, characterized in that: The second sealing ring is located on the inner side of the first sealing ring, the first filter assembly is sealed with the first sealing ring, the second filter assembly is sealed with the second sealing ring, the space between the first sealing ring and the filter element cover is respectively connected to the first filter cavity and the first through port, and the space between the first sealing ring and the second sealing ring is respectively connected to the first filter cavity and the second through port.

3. The filter bottle for a water purifier according to claim 2, characterized in that: The first filter assembly is spaced apart from the inner peripheral wall of the filter element body to form a first through flow channel, and the first through flow channel is respectively connected to the space between the first sealing ring and the filter element cover and the first filter cavity.

4. The filter bottle for a water purifier according to claim 2, characterized in that: An upwardly open mounting groove is provided at the upper end of the first filter assembly, and the second filter assembly is mounted in the mounting groove.

5. The filter bottle for a water purifier according to claim 4, characterized in that: The bottom wall of the mounting groove is provided with a first water hole connected to the first filter cavity, and the second filter assembly is spaced apart from the inner wall of the mounting groove to form a second flow channel, and the second flow channel is respectively connected to the space between the first sealing ring and the second sealing ring and the first water hole.

6. The filter bottle for a water purifier according to claim 2, characterized in that: A third sealing ring is provided in the filter element cover, the third sealing ring is spaced apart from the second sealing ring and is located on the inner side of the second sealing ring, the third sealing ring is sealed with the second filter assembly, the space between the second sealing ring and the third sealing ring is respectively connected to the second filter cavity and the first connecting port, and the internal space of the third sealing ring is respectively connected to the second filter cavity and the second connecting port.

7. The filter bottle for a water purifier according to claim 6, characterized in that: The second filter assembly comprises: A filter body, wherein the filter body is in sealing cooperation with the second sealing ring; The second upper end cover is arranged above the filter cylinder body and defines the second filter cavity together with the filter cylinder body, and the second upper end cover is sealed with the third sealing ring.

8. The filter bottle for a water purifier according to claim 7, characterized in that: The second upper end cover and the filter cartridge body are spaced apart in the up-down direction to connect the space between the second sealing ring and the third sealing ring with the second filter cavity.

9. The filter bottle for a water purifier according to claim 1, characterized in that: The invention comprises a filter cartridge cover for a water purifier, wherein the filter cartridge cover has a first through port, a second through port, a first connecting port and a second connecting port, wherein a first sealing ring, a second sealing ring and a third sealing ring which are spaced apart from each other are arranged inside the filter cartridge cover, wherein the second sealing ring is located on the inner side of the first sealing ring, and the third sealing ring is located on the inner side of the second sealing ring, wherein the first through port connects the space between the first sealing ring and the filter cartridge cover, wherein the second through port connects the space between the first sealing ring and the second sealing ring, wherein the first connecting port connects the space between the second sealing ring and the third sealing ring, and wherein the second connecting port connects the inner space of the third sealing ring.

10. A water purifier, characterized in that: It comprises a filter bottle for a water purifier according to any one of claims 1-9.

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