Filtering assembly and water purifying equipment

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By designing a filter assembly including filter bottle, filter element, partition element and airbag element in the water purification equipment, and using the airbag element to flush the reverse osmosis filter element, the problem of excessive TDS value of the first cup of water after the water purification equipment is stopped, and the low TDS value of the first cup of water is achieved.

CN223150339UActive Publication Date: 2025-07-25FOSHAN SHUNDE MIDEA WATER DISPENSER MFG +1

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Patent Information

Application Number: CN202422003004.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-08-16
Publication Date: 2025-07-25
Estimated Expiration: 2034-08-16

AI Technical Summary

Technical Problem

After the existing water purification equipment is stopped, the ion concentration in the reverse osmosis filter element will tend to balance, resulting in the TDS value of the first cup of water being too high.

Method used

A filter assembly is designed, including a filter bottle, a filter element, a partition and an airbag member. The airbag member is used to flush the inside of the reverse osmosis filter element from the inlet or outlet of the filter element, and dilute or discharge the unfiltered water to reduce the ion concentration of the retained water.

Benefits of technology

It effectively reduces the TDS value of the first cup of water after the water purification equipment is restarted, ensuring that the water quality of the first cup of water meets the usage requirements.

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Abstract

The utility model discloses a filter assembly and water purification equipment, and relates to the technical field of water purification equipment, the filter assembly comprises a filter bottle; a filter element; the partition piece is hollow to form an air bag cavity; the air bag part is arranged in the air bag cavity in a sealing manner, and the air bag cavity is communicated with the filter element; wherein the partition piece comprises a barrel body and a cover plate, the barrel body and the cover plate define the air bag cavity, the air bag piece is provided with an opening, a sealing part is arranged on the periphery of the opening, and the sealing part is connected between the cover plate and the barrel body in a pressed mode; according to the technical scheme provided by the utility model, the inside of the reverse osmosis filter element is scoured from the water inlet end or the water outlet end of the filter element by adopting the air bag piece, so that the first cup of water has a lower TDS value when the whole filter assembly is used for producing water again.

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Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to a filtering component and water purification equipment. Background Art

[0002] In existing water purification equipment, filter elements are often used to filter water, and in order to reduce the overall volume of the water purification equipment, filter elements with different functions are integrated into one, and the composite filter element used is generally a 3-stage or 4-stage filter element; the composite filter element generally includes a pre-filter element for filtering large particles such as flocs, a reverse osmosis filter element for reducing the salt ion concentration in the water and filtering microorganisms, and a post-filter element for improving the taste of purified water.

[0003] However, when the water purification equipment stops operating, the water that has entered the water purification equipment will remain in the flow path of the water purification equipment; and when the reverse osmosis filter element is in a static state, the ion concentration on both sides of the reverse osmosis filter element will tend to balance, that is, the ion concentration of the pure water remaining in the reverse osmosis filter element and filtered by the reverse osmosis filter element will increase (this is called TDS is too high in the field of water purification equipment), so when the user takes water again, the TDS value of the first glass of water is too high. Utility Model Content

[0004] The main purpose of the utility model is to provide a filter assembly, which is intended to reduce the TDS value of the first cup of water when the water purification device is restarted.

[0005] To achieve the above-mentioned purpose, the filter assembly proposed by the utility model comprises:

[0006] Filter bottle;

[0007] A filter element, wherein the filter element is disposed in the filter bottle;

[0008] A separator, the separator is arranged in the filter bottle and located at the bottom of the filter element, and the separator is hollow to form an air bag cavity;

[0009] An airbag component, wherein the airbag component is sealed and disposed in the airbag cavity, and the partition is hollow to form the airbag cavity;

[0010] Among them, the partition includes a barrel body and a cover plate, the barrel body and the cover plate together form the airbag cavity, the cover plate is connected to the bottom of the barrel body, the airbag component has an opening, and a sealing part is provided on the outer periphery of the opening, and the sealing part is crimped between the cover plate and the barrel body.

[0011] In one embodiment, the cover plate is provided with a connecting portion protruding toward the barrel body, an abutting portion is protrudingly provided at the end of the barrel body, and the connecting portion is connected to the abutting portion.

[0012] In one embodiment, the connecting portion and the abutting portion are both annular, and the abutting portion is press-fitted with the sealing portion.

[0013] In one embodiment, the connecting portion is threadedly connected to the abutting portion, and a plurality of first teeth are provided at the end of the abutting portion, and the first teeth are used to limit the displacement of the sealing portion.

[0014] In one embodiment, the cover plate is provided with a plurality of second teeth, the first teeth and the second teeth are arranged in a staggered manner, and the second teeth are press-fitted with the sealing portion.

[0015] In one embodiment, the cover plate is further provided with an annular plate, and an installation gap is formed between the annular plate and the abutting portion, and the bottom of the airbag member is embedded in the installation gap.

[0016] In one embodiment, an arc section that fits the airbag member is provided on the inner surface of the barrel.

[0017] In one embodiment, the abutting portion is arranged at the end of the arc section.

[0018] In one embodiment, a plurality of water passing holes are formed at the top of the barrel, and the water passing holes are used to introduce or discharge water into or from the airbag cavity.

[0019] In one embodiment, a abutting protrusion is provided at the top end of the airbag member, and the abutting protrusion is press-fitted with the top of the airbag cavity.

[0020] In one embodiment, the bottom of the filter bottle has an open end for installing the airbag member, and an end cap is further provided at the bottom of the filter bottle for sealing the open end.

[0021] The present invention also provides a water purification device including the above-mentioned filtration assembly.

[0022] The technical solution of the present invention flushes the inside of the reverse osmosis filter element from the water inlet end or the water outlet end of the filter element by using the airbag member, so that the water that has been filtered by the reverse osmosis filter element can be used to dilute or even discharge the water that has not been filtered by the reverse osmosis filter element, thereby reducing the ion concentration of the water that has not been filtered by the reverse osmosis filter element, that is, reducing the TDS value of the water remaining in the filtration assembly, so that the first glass of water produced by the filtration assembly as a whole has a lower TDS value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the filter assembly provided by the present invention;

[0025] Figure 2 It is a cross-sectional view of the filter assembly of the present invention;

[0026] Figure 3 It is a cross-sectional view of the partition member and the airbag member in the present invention;

[0027] Figure 4 It is an exploded view of the partition member and the airbag member of the present invention;

[0028] Figure 5 It is an exploded view of the partition member and the airbag member of the present invention from another perspective;

[0029] Figure 6 It is an exploded view of the partition member and the airbag member of the present invention from yet another perspective.

[0030] Explanation of the reference numerals in the drawings:

[0031] 1. Filter bottle; 11. Filter element; 12. Open end; 13. End cap; 2. Partition member; 21. Barrel body; 211. Contact portion; 212. First tooth; 213. Arc segment; 214. Water passing hole; 22. Cover plate; 221. Connection portion; 222. Second tooth; 223. Annular plate; 224. Installation gap; 23. Airbag cavity; 24. Airbag member; 241. Sealing portion; 242. Contact protrusion.

[0032] The realization of the purpose, functional features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the drawings. Detailed implementation manners

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0034] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture. If this specific posture changes, then the directional indications will also change accordingly.

[0035] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0036] Total dissolved solids (English: Total dissolved solids, abbreviation TDS), also known as total dissolved solids, is measured in milligrams per liter (mg / L), which indicates how many milligrams of dissolved solids are dissolved in 1 liter of water. The higher the TDS value, the more dissolved substances are contained in the water.

[0037] In existing water purification devices, generally filters are used to filter water; currently, the miniaturized design of water purification devices can save more indoor space, so the miniaturized design of water purification devices has become a trend; and in order to reduce the overall volume of the water purification device, filters with different functions are integrated and combined into one, and the composite filter used is generally a 3 - stage or 4 - stage filter; the composite filter generally includes a pre - filter for filtering large particles such as flocs, a reverse osmosis filter for reducing the salt ion concentration in water and filtering microorganisms, and a post - filter for improving the taste of the purified water.

[0038] When the water purification device stops operating, the water that has entered the water purification device will remain in the flow path of the water purification device; when the reverse osmosis filter is in a static state, the ion concentrations on both sides of the reverse osmosis filter will tend to be balanced, that is, the ion concentration of the pure water remaining in the reverse osmosis filter and that has been filtered by the reverse osmosis filter will increase (referred to as too high TDS in the field of water purification devices), so when the user takes water again, the TDS value of the first glass of water is too high.

[0039] Refer to Figures 1 to 3, to solve the above problems, that is, to reduce the TDS value of the first glass of water when the water purification device restarts working, the present utility model proposes a filtering component, which includes a filter bottle 1, a filter element 11 and a partition member 2; wherein, the filter element 11 is arranged in the filter bottle 1, and the partition member 2 is also arranged in the filter bottle 1 and located at the bottom of the filter element 11, and the partition member 2 is hollow to form an airbag cavity 23, and an airbag member 24 is hermetically arranged in the airbag cavity 23; specifically, the partition member 2 includes a barrel body 21 and a cover plate 22, the cover plate 22 is arranged at the bottom of the barrel body 21, and the barrel body 21 and the cover plate 22 enclose to form the airbag cavity 23; the airbag member 24 has an opening, and a sealing portion 241 is arranged on the outer periphery of the opening, and the sealing portion 241 is press-fitted between the cover plate 22 and the barrel body 21; in the present utility model, the airbag cavity 23 communicates with the filter element 11, and during the filtering process of the filter element 11, since the water entering the filter element 11 has a certain water pressure, and the opening of the airbag member 24 is hermetically arranged between the barrel body 21 and the cover plate 22, so water will enter the airbag cavity 23 during the water filtering process and cause the airbag member 24 to be compressed or expanded; when the filtering process stops, the airbag member 24 has the ability to restore its original shape, that is, the airbag member 24 will press the water back into the filter element 11 again, that is, the water that has been filtered by the filter element 11 is forced back into the filter element 11 again, thereby reducing the ion concentration in the filter element 11, and further reducing the overall ion concentration level in the filter element 11 after the filter element 11 stops working, so as to reduce the TDS value of the first glass of water.

[0040] Refer to Figures 2 to 4, It should be noted that the airbag member 24 is made of a material with good elastic deformation ability, such as rubber. Thus, the airbag member 24 has a tendency to return to its original state after expansion or compression, so as to squeeze the water back into the filter element 11 from the airbag cavity 23; in the water purification device, the water always passes through the reverse osmosis filter element 11 first and then through the post-filter element 11 for filtration. The filter element 11 described in the present utility model is a general term, that is, the filter element 11 in the present utility model can be either the reverse osmosis filter element 11 or the post-filter element 11; it should be noted that whether the filter element 11 in the present utility model is the reverse osmosis filter element 11 or the post-filter element 11, during the actual use process, the airbag member 24 always forces the water that has been filtered by the reverse osmosis filter element 11 back to the water inlet end of the reverse osmosis filter element 11, so as to achieve the effect of reducing the TDS value of the first glass of water; specifically, if the airbag member 24 is arranged at the bottom of the reverse osmosis filter element 11, the airbag cavity 23 is actually communicated with the water outlet end of the reverse osmosis filter element 11. When the water purification device stops working, the airbag member 24 returns to its original state by relying on its own elasticity, so as to squeeze the water in the airbag cavity 23 back into the reverse osmosis filter element 11 again, that is, the water with extremely low ion concentration that has passed through the reverse osmosis filter element 11 will pass through the water outlet end of the reverse osmosis filter element 11 and then pass through the reverse osmosis filter element 11 again and return to the water inlet end of the reverse osmosis filter element 11, thereby reducing the ion concentration at the water inlet end of the reverse osmosis filter element 11 and reducing the TDS value of the first glass of water after the water purification device is restarted; similarly, if the airbag member 24 is arranged at the bottom of the post-filter element 11, the airbag cavity 23 can be communicated with the water inlet end of the post-filter element 11 or the water outlet end of the post-filter element 11. In fact, both are communicated with the water outlet end of the reverse osmosis filter element 11. When the water purification device stops working, the airbag member 24 returns to its original state and squeezes the water in the airbag cavity 23 back to the water inlet end of the reverse osmosis filter element 11, thereby reducing the ion concentration at the water inlet end of the reverse osmosis filter element 11 and reducing the TDS value of the first glass of water after the water purification device is restarted.

[0041] Refer to Figures 2 to 4 , according to the above description, the airbag member 24 actually deforms according to the change of water pressure during the working process of the water purification device, that is, the airbag member 24 stores pressure during the working process of the water purification device and releases the pressure when the water purification device stops working, so as to force the water that has passed through the reverse osmosis filter element 11 back to the water inlet end of the reverse osmosis filter element 11. The airbag member 24 actually divides the airbag cavity 23 into two parts. Part of the airbag cavity 23 is used for storing water, and the air pressure in the remaining part of the airbag cavity 23 will change due to the deformation of the airbag member 24, so as to give the airbag member 24 a greater tendency to return to its original state in addition to its own elasticity when the water purification device stops working; therefore, in order to generate a change in air pressure in the airbag cavity 23 along with the change of the airbag member 24, the airbag member 24 needs to have good airtightness.

[0042] Refer to Figures 2 to 4To this end, the sealing portion 241 provided on the outer periphery of the opening of the airbag component 24 can utilize the connection between the cover plate 22 and the barrel body 21 to provide a good sealing effect for the airbag component 24; the sealing portion 241 can be made of the same deformable material as the airbag component 24. When the cover plate 22 and the barrel body 21 are connected, the sealing portion 241 is actually sandwiched between the cover plate 22 and the barrel body 21, that is, the sealing portion 241 will deform when the cover plate 22 and the barrel body 21 are connected to fill the gap between the cover plate 22 and the barrel body 21, thereby providing a seal between the cover plate 22 and the barrel body 21, that is, providing a seal for the airbag cavity 23; in addition, since the sealing portion 241 is actually sandwiched between the cover plate 22 and the barrel body 21, when the airbag component 24 is squeezed or expanded due to changes in water pressure, the sealing portion 241 is not easy to fall out from between the cover plate 22 and the barrel body 21, and thus the sealing portion 241 can maintain a good sealing effect.

[0043] Reference Figures 3 to 6 In the present invention, in order to complete the connection between the cover plate 22 and the barrel body 21, the cover plate 22 protrudes toward the barrel body 21 to form a connecting portion 221, and the end of the barrel body 21 is protrudingly provided with a resisting portion 211, and the connecting portion 221 is connected to the resisting portion 211; specifically, the resisting portion 211 is in conflict with the sealing portion 241, that is, the sealing portion 241 is provided between the resisting portion 211 and the cover plate 22; as the connecting portion 221 and the resisting portion 211 are connected, the resisting portion 211 will push the sealing portion 241 against the cover plate 22, thereby completing the sealing between the cover plate 22 and the barrel body 21. In order to complete the communication between the airbag cavity 23 and the filter element 11, a plurality of water holes 214 are provided on the top of the barrel body 21, so that the water at the filter element 11 can directly enter the airbag cavity 23 through the water holes 214.

[0044] It should be noted that, taking into account a series of factors such as the cost, difficulty and ease of installation of production, the filter bottle 1 is generally cylindrical, and the filter bottle 1 in the present invention is roughly cylindrical; therefore, the filter element 11 and the separator 2 are also roughly cylindrical, but the filter bottle 1, the filter element 11 and the separator 2 can also be designed into other shapes according to actual needs, such as roughly rectangular, which can be changed according to actual design and usage requirements.

[0045] Reference Figures 3 to 6, considering the general shape of the filter bottle 1, that is, considering that the filter bottle 1 is generally cylindrical, in order to pursue the maximum volume of the airbag cavity 23, the separator 2 as a whole is also generally cylindrical to fit the overall shape of the filter bottle 1; thus, the contact part 211 of the barrel 21 and the connecting part 221 of the cover plate 22 are also annular to match the overall shape of the separator 2; considering the shapes of the connecting part 221 and the contact part 211, the connecting part 221 and the contact part 211 can be screwed together, which makes the installation connection process of the connecting part 221 and the contact part 211 more convenient; it should be emphasized that the specific connection method between the contact part 211 and the connecting part 221 can be replaced, for example, they can be interference-fitted, such as the outer ring of the contact part 211 and the inner ring of the connecting part 221 being interference-fitted.

[0046] Referring to Figures 3 to 6 , considering the existence of the sealing part 241, the threaded connection between the contact part 211 and the connecting part 221 can gradually press the sealing part 241 against the cover plate 22 during the installation process of the cover plate 22 and the barrel 21, thereby reducing the possibility of the sealing part 241 being structurally damaged due to stress or shear force during the installation process; in addition, the threaded connection between the contact part 211 and the connecting part 221 also makes them have better structural stability when the air pressure in the airbag cavity 23 changes due to the extrusion or expansion of the airbag part 24, that is, the contact part 211 and the connecting part 221 need to rely on a rotational movement to release the cooperation relationship between them, and when their structures remain intact, the change in air pressure cannot drive relative rotation between the contact part 211 and the connecting part 221, that is, the contact part 211 and the connecting part 221 have better stability after being connected by the threaded connection method, thereby ensuring the sealing performance in the airbag cavity 23 and ensuring the normal operation of the airbag part 24.

[0047] Referring to Figures 3 to 6 , it should be noted that considering that the volume in the airbag cavity 23 is certain, and also considering the shapes of the airbag part 24 and the separator 2, that is, the expansion process of the airbag part 24 in the airbag cavity 23 will be restricted by the inner wall of the airbag cavity 23, in the present invention, water enters the airbag cavity 23 and squeezes the airbag part 24; specifically, when the water pressure is relatively high, if the airbag part 24 has expanded to contact the inner side wall of the barrel 21, and the airbag part 24 still needs to continue to expand to achieve pressure balance on both sides, irregular deformation will occur on the airbag part 24, which will increase the possibility of damage to the airbag part 24 in the long run. Therefore, in the present invention, the airbag part 24 is selected to be squeezed to balance the water pressure and air pressure in the airbag cavity 23.

[0048] Referring to Figures 3 to 6, considering the above and taking into account the displacement trend brought about by the deformation process of the airbag member 24 within the airbag cavity 23, as well as the relative displacement that may occur between the airbag member 24 and the cover plate 22 during the installation process, in order to ensure the accuracy of the position of the airbag member 24, that is, to ensure the sealing effect of the sealing portion 241, a plurality of first teeth 212 are provided at the end of the abutting portion 211, and the first teeth 212 are press-connected to the sealing portion 241; correspondingly, a plurality of second teeth 222 are also provided on the cover plate 22, the second teeth 222 are arranged in a staggered manner with the first teeth 212, and the second teeth 222 are also press-connected to the sealing portion 241; the settings of the first teeth 212 and the second teeth 222 are both used to fix the sealing portion 241, reducing the possibility that the sealing portion 241 undergoes relative displacement during the deformation process and installation process of the airbag member 24, thereby weakening the sealing effect. It should be noted that in the present utility model, the number of both the first teeth 212 and the second teeth 222 is two, but the number of the first teeth 212 and the second teeth 222 is not necessarily the same, and the number of the first teeth 212 and the second teeth 222 is not limited to two either. It can be reasonably changed according to the actual design dimensions and design requirements as long as the sealing portion 241 can be press-connected and fixed.

[0049] Correspondingly, although the settings of the first teeth 212 and the second teeth 222 can fix the sealing portion 241, they also increase the possibility of damage to the sealing portion 241 during the overall deformation process of the airbag member 24; therefore, a circular plate 223 is further provided on the cover plate 22, an installation gap 224 is formed between the circular plate 223 and the abutting portion 211, and the bottom of the airbag member 24 is embedded in the installation gap 224. Thus, the circular plate 223 and the abutting portion 211 can jointly provide support for the airbag member 24, and the installation gap 224 can be used to further fix the airbag member 24 to offset the pulling force that the airbag member 24 may exert on the sealing portion 241 during the deformation process, thereby reducing the possibility of damage to the sealing portion 241. In order to fully exert the deformation ability of the airbag member 24 and reduce the possible obstruction caused by the circular plate 223 to the deformation process of the airbag member 24, an arc section 213 is provided on the inner surface of the barrel body 21, the abutting portion 211 is provided at the end of the arc section 213, and the airbag member 24 is attached to the arc section 213. That is, it can be simply understood that the inner diameter of the lower half of the airbag member 24 is continuously decreasing. Thus, the setting of the circular plate 223 is not likely to obstruct the deformation of the airbag member 24, and the cooperation of the arc section 213, the abutting portion 211, and the circular plate 223 can control the deformation direction of the airbag during the compression process, reducing the possibility that the airbag member 24 is damaged due to irregular deformation under the water flow pressure.

[0050] Refer to Figures 3 to 6It should be noted that, considering that the airbag component 24 actually balances the water pressure and air pressure in the airbag cavity 23; that is, when the water pressure in the airbag cavity 23 is greater than the air pressure, the airbag component 24 is compressed; when the water pressure in the airbag cavity 23 is less than the air pressure, the airbag component 24 rebounds; the compression and rebound of the airbag component 24 correspond to the opening and closing of the water purification equipment respectively; further, in order to make the airbag component 24 have a better rebound effect, the airbag component 24 can be compressed during the installation process, that is, the top of the airbag component 24 is pressed against the top of the airbag cavity 23 during the installation process, so that the airbag component 24 has a certain elasticity after the installation is completed, reducing the compression of the airbag component 24 after water passes through the airbag cavity 23, thereby reducing the possibility of the airbag component 24 being damaged due to excessive deformation, thereby ensuring the structural integrity of the airbag component 24. Accordingly, in order to make the deformation of the airbag component 24 during the installation process more uniform, that is, to ensure that the airbag component 24 can be evenly stressed at various locations during the installation process, a resistance protrusion is provided at the top of the airbag component 24. The resistance protrusion will resist the top of the airbag cavity 23 during the installation of the airbag component 24. While resisting, the resistance protrusion will evenly transfer force to the airbag component 24, thereby causing the airbag component 24 to deform more evenly, reducing the possibility of uneven deformation of the airbag component 24 during the installation process or the rebound process, and further ensuring the structural integrity and stability of the airbag component 24.

[0051] From the overall structure, the filter element 11, the separator 2 and the airbag 24 need to be installed in the filter bottle 1, so the bottom of the filter bottle 1 has an opening 12, and the opening 12 is used to install the filter element 11, the airbag 24 and the separator 2; the specific installation process is as follows:

[0052] Reference Figures 3 to 6 First, place the airbag component 24 in the barrel body 21, and then confirm that the position of the sealing portion 241 is aligned with the position of the interference portion 211, and then align the annular plate 223 on the cover plate 22 with the inside of the airbag component 24, and then evenly tighten the cover plate 22 on the barrel body 21. At this point, the partition 2 and the airbag component 24 are installed; further, install the filter element 11 on the top of the partition 2. After the installation is completed, the filter element 11 and the partition 2 are inserted into the filter bottle 1 as a whole. An end cover 13 is also provided at the bottom of the filter bottle 1, and the end cover 13 is used to seal the opening 12; when the filter element 11 and the partition 2 are inserted into the filter bottle 1 as a whole, the end cover 13 is installed to the bottom of the filter bottle 1 to complete the overall installation of the filter assembly.

[0053] Reference Figure 1 and Figure 2, It should be noted that components such as the filter bottle 1, the separator 2, and the end cap 13 are generally made of plastic. Thus, after the separator 2 and the filter element 11 are installed, the end cap 13 can be fixed to the bottom of the filter bottle 1 by rotational welding, thereby ensuring the sealing performance between the end cap 13 and the filter bottle 1. In addition, relevant structures for fixing the filter element 11 and isolating the water channel can be provided at the top of the barrel body 21 to ensure that the filter element 11 is not easily damaged or cross-contaminated during the installation process and the filtration process.

[0054] The present utility model further provides a water purification device, which includes the above-mentioned filtration assembly. The specific structure of the filtration assembly refers to the above-mentioned embodiments. Since this water purification device adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated here one by one.

[0055] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A filtering component, characterized in that, include Filter bottle; A filter element, wherein the filter element is disposed in the filter bottle; A separator, the separator is arranged in the filter bottle and located at the bottom of the filter element, and the separator is hollow to form an air bag cavity; An airbag component, wherein the airbag component is sealed and disposed in the airbag cavity, and the airbag cavity is communicated with the filter element; Among them, the partition includes a barrel body and a cover plate, the barrel body and the cover plate together form the airbag cavity, the cover plate is connected to the bottom of the barrel body, the airbag component has an opening, and a sealing part is provided on the outer periphery of the opening, and the sealing part is crimped between the cover plate and the barrel body.

2. The filter component according to claim 1, wherein The cover plate is protruded toward the barrel body to form a connecting portion, and an abutting portion is protruded at the end of the barrel body, and the connecting portion is connected to the abutting portion.

3. The filtering component according to claim 2, wherein The connecting portion and the abutting portion are both annular, and the abutting portion is crimped with the sealing portion.

4. The filter assembly according to claim 3, wherein The connecting portion is threadedly connected to the abutting portion, and a plurality of first latching teeth are arranged at the end of the abutting portion. The first latching teeth are used to limit the displacement of the sealing portion.

5. The filter component according to claim 4, wherein, The cover plate is provided with a plurality of first and second latch teeth, the first and second latch teeth are staggered, and the second latch teeth are crimped with the sealing portion.

6. The filter assembly according to any one of claims 3 to 5, characterized in that The cover plate is further provided with an annular plate, an installation gap is formed between the annular plate and the abutment portion, and the bottom of the airbag component is embedded in the installation gap.

7. The filtering component according to claim 6, wherein The inner surface of the barrel body is provided with an arc segment which fits with the airbag component.

8. The filter component according to claim 7, characterized in that, The abutment portion is arranged at the end of the arc segment.

9. The filter assembly according to claim 6, wherein, A plurality of water holes are provided on the top of the barrel body, and the water holes are used to introduce or discharge water into the airbag cavity.

10. The filtering component according to claim 6, characterized in that, The top of the airbag component is provided with an abutment protrusion, and the abutment protrusion is pressed against the top of the airbag cavity.

11. The filtering component according to claim 6, wherein, The bottom of the filter bottle has an opening, and the opening is used to install the airbag component. The bottom of the filter bottle is also provided with an end cover, and the end cover is used to seal the opening.

12. A water purification device, characterized in that, Comprising a filter assembly as claimed in any one of claims 1 to 11.