Water purifying kettle filter element

Abstract

The utility model discloses a water purifying kettle filter element which comprises a first filter element and a second filter element, an exhaust channel is arranged in a shell of the first filter element, the inner end of the exhaust channel extends into a filter cavity, and the outer end of the exhaust channel penetrates through the outer side wall of the shell; the second filter element is hermetically connected in the filter cavity of the first filter element, and the filter precision of the second filter element is greater than that of the first filter element; a water passing hole communicated with the filter cavity is formed in the second filter element and used for enabling water in the filter cavity to flow into the second filter element, and the water outlet end of the second filter element is communicated with the water outlet hole; an exhaust port is formed in the second filter element, and the exhaust port is communicated with the inner end of the exhaust channel. The water purifying kettle filter element is good in filtering effect, capable of effectively avoiding the air trapping phenomenon, small in size, high in assembly efficiency and convenient to replace.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water purification equipment accessories, in particular to a water purification kettle filter element. BACKGROUND

[0002] The water purification kettle is a household drinking water filtration equipment, which filters particulate impurities, plankton, peculiar smell and the like in water through the built-in filter element to improve water quality and taste. The water purification kettle of the related art, such as the prior application of the present applicant with the publication number CN205275242U, has a structure comprising an outer cup body and an inner cup body fixedly arranged on the upper portion of the inner side of the outer cup body, wherein the lower portion of the inner cup body is provided with a filter element, and the bottom of the filter element is provided with a water outlet hole which is in communication with the water storage cavity of the outer cup body. After the water purification kettle of the prior art is connected to drinking water, the drinking water is filtered by the filter element and then stored in the water storage cavity of the outer cup body.

[0003] With the improvement of the quality of life, people have higher and higher requirements for water quality, and some higher-precision filtration materials such as ultrafiltration and ceramic filter elements are gradually configured on the water purification kettle. For example, the prior application of the present applicant with the publication number CN219314603U and the name of a water purification kettle, wherein the inner cup body of the water purification kettle is connected with a first filter element and a second filter element arranged side by side, wherein the filtration precision of the second filter element is greater than that of the first filter element, i.e. the second filter element is an ultrafiltration filter element, the first filter element can filter or remove harmful substances with larger particles in water, and the second filter element removes harmful substances such as bacteria and green algae with smaller volumes in water, so that the water is filtered by the first filter element and then flows through the second filter element for fine filtration to improve the quality of water. In addition, the ultrafiltration filter element usually adopts a filter material with micropores, and the corresponding water resistance is also relatively large. In order to avoid the formation of air trapping in the filter element, an air vent is generally provided.

[0004] The filter element of the water purification kettle of the above related art has the following defects in actual use: since the first filter element and the second filter element are arranged side by side in the inner cup body, two installation spaces need to be provided in the inner cup body, which leads to a relatively large volume of the inner cup body, thereby resulting in a relatively large size of the water purification kettle and inconvenience in carrying. In addition, during the assembly of the water purification kettle, the first filter element and the second filter element need to be assembled in sequence, which leads to a relatively low assembly efficiency. When the filter elements are replaced, they need to be replaced one by one, which is relatively inconvenient to operate. CONTENT OF THE UTILITY MODEL

[0005] The technical problem to be solved by the present application is to overcome the defects of the above prior art, and to provide a water purification kettle filter element which not only has good filtration effect, can effectively avoid air trapping, and has a small volume, high assembly efficiency and convenience in replacement.

[0006] The technical solution of the present application is to provide a water purification kettle filter element with the following structure: comprising

[0007] A first filter element includes a housing, a filter cavity is arranged in the housing, a water inlet hole and a water outlet hole are arranged on the housing, and the water inlet hole is communicated with the filter cavity; an air exhaust passage is arranged in the housing, an inner end of the air exhaust passage extends into the filter cavity, and an outer end of the air exhaust passage penetrates through an outer side wall of the housing;

[0008] A second filter element is sealingly connected in the filter cavity, and a filtering precision of the second filter element is greater than that of the first filter element; a water passing hole is arranged on the second filter element and communicated with the filter cavity, so as to make water in the filter cavity flow into the second filter element, and a water outlet end of the second filter element is communicated with the water outlet hole; an air exhaust port is arranged on the second filter element, and the air exhaust port is communicated with the inner end of the air exhaust passage.

[0009] In some embodiments, the air exhaust passage is vertically arranged along a height direction of the housing, and the inner end of the air exhaust passage forms a plug-in end which is plugged into the air exhaust port of the second filter element.

[0010] In some embodiments, the outer end of the air exhaust passage forms an air exhaust hole at a top of the housing, and a hole diameter of the air exhaust hole is smaller than an inner diameter of the air exhaust passage.

[0011] In some embodiments, an inner bottom wall of the filter cavity is concave downward to form a mounting cavity, the second filter element is sealingly connected in the mounting cavity, and the bottom of the mounting cavity is provided with the water outlet hole.

[0012] In some embodiments, the second filter element includes a shell and a filter body arranged in the shell, a lower end of the second filter element forms the water outlet end, an upper end of the shell is provided with the air exhaust port in an axial direction, and an outer circumferential wall of the shell is provided with the water passing hole.

[0013] In some embodiments, a second filter screen is arranged in the shell and covers the water passing hole.

[0014] In some embodiments, the second filter screen and the shell are formed by two-shot injection molding.

[0015] In some embodiments, a sealing ring is connected to the shell and sealingly connected to an inner wall of the mounting cavity.

[0016] In some embodiments, the housing includes an upper shell and a lower shell which are sealingly connected, and a first filter screen is connected between the upper shell and the lower shell; the water inlet hole is arranged on the upper shell, and the water outlet hole is arranged at a bottom of the lower shell; an annular sealing body which cooperates with a water purifying kettle is connected to an outer circumferential wall of the lower shell.

[0017] In some embodiments, the lower shell is provided with an annular clamping groove with an opening downward on the outer peripheral wall, and the annular sealing body is provided with an inserting part inserted in the annular clamping groove.

[0018] Compared with the related art, the water purifying kettle filter core has the following advantages: the second filter core with high filtering precision is integrated in the filtering cavity of the first filter core, so that the overall volume of the water purifying kettle filter core is reduced, the design size of the water purifying kettle is reduced, and the water purifying kettle is more convenient to carry; in addition, the water purifying kettle filter core is composed of the first filter core with low filtering precision and the second filter core with high filtering precision, so that the water purifying effect is good, and the quality of the purified water flowing out of the water outlet is high; furthermore, the exhaust passage arranged in the first filter core can facilitate the exhaust of the gas generated in the second filter core, and effectively avoids the gas trapping phenomenon in the second filter core; when the water purifying kettle filter core is assembled or replaced, only the filter core is taken out and replaced or assembled, so that the first filter core and the second filter core are not taken out or assembled one by one, and the operation is simple and the installation is convenient; the water purifying kettle filter core not only has good filtering effect and can effectively avoid the gas trapping phenomenon, but also has small volume, high assembly efficiency and convenient replacement. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structure schematic view of a water purifying kettle filter core of the utility model.

[0020] Figure 2 is another angle structure schematic view of a water purifying kettle filter core of the utility model.

[0021] Figure 3 is a sectional structure schematic view of a water purifying kettle filter core of the utility model.

[0022] Figure 4 is a structure schematic view of a second filter core of a water purifying kettle filter core of the utility model.

[0023] Figure 5 is an assembly structure schematic view of a water purifying kettle filter core of the utility model.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1, first filter core, 100, filtering cavity, 101, upper shell, 102, lower shell, 103, water inlet hole, 104, water outlet hole, 105, exhaust passage, 106, exhaust hole, 107, annular sealing body, 108, inserting part, 109, annular clamping groove, 110, mounting cavity, 111, inserting end, 2, second filter core, 200, shell, 201, filter body, 202, water passing hole, 203, water outlet end, 204, second filter screen, 205, exhaust port, 206, sealing ring, 3, first filter screen. DETAILED DESCRIPTION

[0026] First, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed to adapt to specific application occasions.

[0027] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0028] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0029] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0030] Referring to Figures 1-5 The embodiments of the present application disclose a water purifying kettle filter element, which is installed on a water purifying device such as a water purifying kettle and used for purifying water. The structure comprises a first filter element 1, which has an outer shell, a filter cavity 100 is arranged in the outer shell, a water inlet hole 103 and a water outlet hole 104 are arranged on the outer shell, and the water inlet hole 103 is in communication with the filter cavity 100; the water outlet hole 104 is arranged at the bottom of the outer shell, the filter cavity 100 of the outer shell is filled with activated carbon and resin filter material, and the filtering precision is generally low, so that small dust particles, impurities and suspended solids in water can be filtered.

[0031] Further in the embodiments, referring to Figure 1 , Figure 3 and Figure 5 , the outer shell of the first filter element 1 comprises a sealingly connected upper shell 101 and lower shell 102, the upper shell 101 is also called an upper cover, a plurality of through holes are arranged on the upper shell 101, the through holes form the water inlet hole 103, raw water can flow into the filter cavity 100 of the outer shell through the water inlet hole 103 and fully contact and filter with the filter material in the filter cavity 100. The bottom of the lower shell 102 is provided with the water outlet hole 104, and the water outlet hole 104 is in communication with the water storage cavity of the water purifying kettle.

[0032] In this embodiment, see Figure 3 and Figure 5 As shown, a first filter screen 3 is connected between the upper shell 101 and the lower shell 102. The first filter screen 3 is ultrasonically welded between the upper shell 101 and the lower shell 102. It is used for the preliminary filtration of water and can effectively intercept or block larger particles of mud and sand, as well as large suspended solids and impurities. This effectively prevents large particles of mud, sand, suspended solids and impurities from entering the filter chamber 100 and weakening the filtration effect of the filter media in the filter chamber 100, thereby improving the service life of the filter media.

[0033] Further in this embodiment, see Figure 3 , Figure 4 and Figure 5 As shown, the water purifier filter cartridge also includes a second filter cartridge 2 sealed and connected within the filter chamber 100 of the first filter cartridge 1. The filtration accuracy of the second filter cartridge 2 is greater than that of the first filter cartridge 1. In this embodiment, the second filter cartridge 2 includes a housing 200 and a filter body 201 disposed within the housing 200. The lower end of the second filter cartridge 2 forms a water outlet 203. The second filter cartridge 2 is an ultrafiltration filter cartridge, that is, the filter body 201 within the housing 200 of the second filter cartridge 2 is a filter body 201 made of ultrafiltration hollow fiber membrane, which can effectively remove small-volume harmful substances such as bacteria and green algae in the water. Its filtration accuracy is greater than that of activated carbon and resin filter media. The second filter element 2 is provided with water passage holes 202 that communicate with the filter chamber 100. Specifically, the outer circumferential wall of the housing 200 is provided with multiple water passage holes 202 for allowing water in the filter chamber 100 to flow into the second filter element 2. The water outlet end 203 of the second filter element 2 is connected to the water outlet hole 104. That is, the raw water enters the filter chamber 100 through the water inlet hole 103 on the outer shell of the first filter element 1 and is fully filtered by the activated carbon and resin filter material in the filter chamber 100. The filtered water enters the second filter element 2 through the water passage holes 202 on the second filter element 2 and is fully filtered again by the filter body 201 made of ultrafiltration hollow fiber membrane in the second filter element 2. The filtered clean water flows out through the water outlet end 203 of the second filter element 2 and the water outlet hole 104 at the bottom of the outer shell.

[0034] In the above embodiment, the water purifying kettle filter element integrates the second filter element 2 with high filtering precision in the filtering cavity 100 of the first filter element 1, so that the overall volume of the water purifying kettle filter element is reduced, and thus the design size of the water purifying kettle is reduced, and the water purifying kettle is more convenient to carry. In addition, the water purifying kettle filter element is composed of the first filter element 1 with low filtering precision and the second filter element 2 with high filtering precision, so that the water purifying effect is good, and the quality of the purified water flowing out of the water outlet hole 104 is high. When the water purifying kettle filter element is assembled or replaced, only the filter element as a whole needs to be taken out and replaced or assembled, so that the first filter element 1 and the second filter element 2 do not need to be taken out or assembled one by one, and thus the operation is simple and the installation is convenient. The water purifying kettle filter element not only has good filtering effect, but also has small volume, high assembly efficiency and convenient replacement.

[0035] In the embodiment, as shown in Figure 3 , the inner bottom wall of the filtering cavity 100 of the first filter element 1 is concave downward to form a mounting cavity 110, and the lower part of the second filter element 2 is sealingly connected in the mounting cavity 110. The bottom of the mounting cavity 110 is provided with a water outlet hole 104. Specifically, the sealing ring 206 sealingly connected with the inner wall of the mounting cavity 110 is connected to the shell 200 of the first filter element 1. The sealing ring 206 can block the water in the filtering cavity 100 from flowing out of the water outlet hole 104 directly without passing through the second filter element 2, so as to further improve the filtering effect of the water purifying kettle filter element.

[0036] It is not difficult to understand that the ultrafiltration filter element usually adopts a filter material with micropores, and the corresponding water resistance is also large. When the water passes through the inside of the filter element, the air will be trapped due to the action of gravity or impact force. If the air cannot be discharged, the speed of the water flow will be affected, and even the water outlet end 203 of the second filter element 2 will be difficult to discharge water. Therefore, the corresponding ultrafiltration filter element is provided with an air vent. In the embodiment, the second filter element 2 with high filtering precision is arranged inside the first filter element 1. Therefore, in order to facilitate the smooth discharge of the gas in the second filter element 2, as shown in Figure 3 , Figure 4 and Figure 5 , an air discharge channel 105 is arranged in the shell, the inner end of the air discharge channel 105 extends into the filtering cavity 100, and the outer end of the air discharge channel 105 penetrates the outer side wall of the shell. The second filter element 2 is provided with an air vent 205, that is, the air vent 205 is arranged on the upper end of the shell 200 in the axial direction, and the air vent 205 is in communication with the inner end of the air discharge channel 105. That is, the gas generated in the second filter element 2 is discharged through the air vent 205 and the air discharge channel 105. Therefore, the air discharge channel 105 arranged in the first filter element 1 can facilitate the discharge of the gas generated in the second filter element 2, and effectively avoid the air trapping phenomenon in the second filter element 2.

[0037] Further in the embodiment, as shown in Figure 3As shown in the drawings, the second filter element 2 is provided with a hollow exhaust port 205 in the top of the shell 200 of the second filter element 2 and in communication with the inside of the shell 200; the exhaust passage 105 is vertically arranged along the height direction of the shell, and the inner end of the exhaust passage 105 forms a plug-in end 111 which is plugged into the exhaust port 205 of the second filter element 2. When the upper shell 101 of the shell is installed, the plug-in end 111 of the inner end of the exhaust passage 105 is plugged into the exhaust port 205 of the second filter element 2 to realize the butt joint of the exhaust passage 105 of the second filter element 2, facilitating the assembly of the filter element and improving the assembly efficiency of the filter element.

[0038] In the foregoing embodiments, referring to Figure 3 As shown in the drawings, the outer end of the exhaust passage 105 is formed with an exhaust hole 106 in the top of the shell, and the hole diameter of the exhaust hole 106 is smaller than the inner diameter of the exhaust passage 105. In this way, water is difficult to enter the exhaust passage 105 from the exhaust hole 106, and the gas in the exhaust passage 105 is conveniently discharged from the exhaust hole 106 at the upper end of the exhaust passage 105.

[0039] Further in the present embodiment, the shell 200 of the second filter element 2 is provided with a second filter screen 204 which covers the water passing hole 202. The second filter screen 204 plays a role of further filtering to prevent larger impurities in the water in the filter cavity 100 from entering the second filter element 2. In the present embodiment, the second filter screen 204 and the shell 200 are a two-shot injection molding structure. That is, the second filter screen 204 is first manufactured, and then the second filter screen 204 is placed in the injection mold of the shell 200, so that the second filter screen 204 is integrally formed on the shell 200 when the shell 200 is injection molded. In this way, the second filter screen 204 and the shell 200 are formed in one piece, avoiding the defect of low assembly efficiency caused by the assembly of the two.

[0040] In some embodiments, the outer peripheral wall of the lower shell 102 of the shell is connected with an annular sealing body 107 which cooperates with the water purifying kettle. Specifically, referring to Figure 2 、 Figure 3 and Figure 5 As shown in the drawings, the outer peripheral wall of the lower shell 102 is provided with an annular clamping groove 109 which is open downward, and the annular sealing body 107 has a plug-in part 108 which is plugged into the annular clamping groove 109. In this way, the connection of the annular sealing body 107 is more firm and stable, and the annular sealing body 107 can be sealed and cooperated with the water purifying kettle to improve the water purifying effect.

[0041] In the description of the embodiments of the present application, it should be noted that in the description of the present application, the terms indicating the direction or position relationship are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0042] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "in this embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0043] The above description is merely specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A water purifier filter cartridge, characterized in that: Comprising The first filter core comprises a shell, a filtering cavity is arranged in the shell, a water inlet hole and a water outlet hole are arranged on the shell, and the water inlet hole is communicated with the filtering cavity; an exhaust passage is arranged in the shell, an inner end of the exhaust passage extends into the filtering cavity, and an outer end of the exhaust passage penetrates through an outer side wall of the shell; A second filter core is sealingly connected in the filtering cavity, and the filtering precision of the second filter core is greater than that of the first filter core; a water passing hole is arranged on the second filter core and communicated with the filtering cavity, so as to make the water in the filtering cavity flow into the second filter core, and a water outlet end of the second filter core is communicated with the water outlet hole; an exhaust port is arranged on the second filter core, and the exhaust port is communicated with the inner end of the exhaust passage.

2. The water purification pitcher filter cartridge of claim 1, wherein: The exhaust passage is vertically arranged along the height direction of the shell, and the inner end of the exhaust passage forms a plug-in end which is plugged into the exhaust port of the second filter core.

3. The water purification pitcher filter cartridge of claim 2, wherein: An exhaust hole is formed at the top of the shell at the outer end of the exhaust passage, and the hole diameter of the exhaust hole is smaller than the inner diameter of the exhaust passage.

4. The water purification pitcher filter cartridge of claim 1, wherein: The inner bottom wall of the filtering cavity is concave downward to form a mounting cavity, the second filter core is sealingly connected in the mounting cavity, and the bottom of the mounting cavity is provided with the water outlet hole.

5. The water purification pitcher filter cartridge of claim 4, wherein: The second filter core comprises a shell and a filter body arranged in the shell, the lower end of the second filter core forms the water outlet end, the upper end of the shell is provided with the exhaust port in the axial direction, and the outer circumferential wall of the shell is provided with the water passing hole.

6. The water purification pitcher filter cartridge of claim 5, wherein: The shell is provided with a second filter screen covering the water passing hole.

7. The water purification pitcher filter cartridge of claim 6, wherein: The second filter screen and the shell are a two-shot injection molding structure.

8. The water purification pitcher filter cartridge of claim 5, wherein: The shell is connected with a sealing ring which is sealingly connected with the inner wall of the mounting cavity.

9. The water purification pitcher filter cartridge of claim 1, wherein: The shell comprises an upper shell and a lower shell which are sealingly connected, and a first filter screen is connected between the upper shell and the lower shell; the water inlet hole is arranged on the upper shell, and the water outlet hole is arranged on the bottom of the lower shell; an annular sealing body which cooperates with the water purifier is connected to the outer circumferential wall of the lower shell.

10. The water purification pitcher filter cartridge of claim 9, wherein: The outer circumferential wall of the lower shell is provided with an annular clamping groove with an opening downward, and the annular sealing body has a plug-in part which is plugged into the annular clamping groove.

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