Filter cover assembly, filter element assembly and equipment with water purification function

Abstract

The utility model discloses a filter cover assembly, a filter element assembly and equipment with a water purification function, and the filter cover assembly comprises a filter bottle cover, a filter element cover and a filter element handle, an avoiding opening is formed in the filter bottle cap, a limiting table is arranged on the periphery of the avoiding opening, and an inserting groove is formed in the limiting table; the filter element cover is detachably mounted at the avoiding opening; the filter element lifting handle is movably connected with the filter element cover, the filter element lifting handle can lift the filter element cover out of the receding opening, one side, facing the filter element cover, of the filter element lifting handle is provided with a crimping part, and the crimping part penetrates through the inserting groove and is used for limiting the filter element cover. The filter cover assembly disclosed by the utility model can solve the technical problem that the butt joint part of the filter bottle cover and the filter element cover is easy to leak water.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a filter cover assembly, a filter element assembly and equipment with a water purification function. Background Art

[0002] At present, the commonly used filter element assembly is a composite filter element including at least a pre-filter element and a reverse osmosis filter element. In order to facilitate the replacement of the pre-filter element, the existing products design the pre-filter element as a detachable filter element.

[0003] For a detachable filter element assembly, the filter cover portion thereof is also provided as a filter element cover and a filter bottle cover corresponding to the pre-filter element and the reverse osmosis filter element, wherein the filter element cover is detachable compared to the filter bottle cover. However, since the pre-filter element has a large upward buoyancy during use of the filter element assembly, the filter element cover will be lifted upward, thereby causing water leakage at the joint between the filter bottle cover and the filter element cover. Therefore, an effective limiting structure needs to be provided to solve the above problem. Utility Model Content

[0004] The main purpose of the utility model is to provide a filter cover assembly, aiming to solve the technical problem that the joint between the filter bottle cover and the filter element cover is prone to water leakage.

[0005] In order to achieve the above-mentioned purpose, the filter cover assembly proposed by the utility model is used for the filter element assembly, and the filter cover assembly comprises:

[0006] A filter bottle cover, a filter element cover and a filter element handle; the filter bottle cover is provided with an avoidance opening, a limiting platform is provided on the periphery of the avoidance opening, and the limiting platform is provided with a slot; the filter element cover is detachably mounted at the avoidance opening; the filter element handle is movably connected to the filter element cover, and the filter element handle can lift the filter element cover out of the avoidance opening, and a crimping portion is provided on the side of the filter element handle facing the filter element cover, and the crimping portion passes through the slot to limit the filter element cover.

[0007] In one embodiment, a pressing groove is provided on the filter element cover, the pressing portion passes through the slot and is at least partially located in the pressing groove, and the pressing portion is used to abut against a groove wall of the pressing groove to limit the filter element cover.

[0008] In one embodiment, the number of the crimping parts is set to at least one, and the number of the crimping grooves is consistent with the number of the crimping parts.

[0009] In one embodiment, the avoidance opening is arranged in a circular shape, the limit platform has a relative inner side and outer side, the inner side contour of the limit platform matches the contour of the avoidance opening, and the outer side contour of the limit platform matches the inner side contour of the filter element handle.

[0010] In one embodiment, the slot is formed by penetrating from the outer side of the limiting platform to the inner side of the limiting platform.

[0011] In one embodiment, the height of the slot is no greater than half the height of the limiting platform.

[0012] In one embodiment, the filter element handle includes a pull rod and two sliding rods connected to both ends of the pull rod, the sliding rod is connected to the filter element cover, and the crimping portion is arranged on the pull rod and located between the two sliding rods.

[0013] In one embodiment, the filter element handle is U-shaped.

[0014] In one embodiment, filter element handle sliding grooves are provided on opposite sides of the filter element cover, and filter element handle sliding shafts are provided on the two sliding rods. The filter element handle sliding shafts are rotatably provided in the filter element handle sliding grooves.

[0015] In one embodiment, the filter cartridge handle slide groove extends along the length direction of the filter cartridge cover, track grooves are formed on opposite sides of the filter bottle cover, sliding parts are formed on opposite sides of the filter cartridge handle, and the filter cartridge handle has a first position in which the sliding part slides into the track groove, and a second position in which the sliding part slides out of the track groove. When the filter cartridge handle is in the first position, the track groove limits the sliding part in a sliding direction perpendicular to the sliding part.

[0016] The utility model also proposes a filter element assembly, which includes a filter bottle, a reverse osmosis component, a filter assembly and the above-mentioned filter cover assembly, wherein the filter bottle has a accommodating chamber; the reverse osmosis component is arranged in the accommodating chamber, the reverse osmosis component includes a reverse osmosis filter element and a central tube, the central tube is arranged in the accommodating chamber, and divides the accommodating chamber into a first chamber and a second chamber, the second chamber is located at the periphery of the first chamber, and the reverse osmosis filter element is arranged in the second chamber; the filter assembly is detachably arranged in the first chamber; the filter element cover of the filter cover assembly is arranged corresponding to the filter assembly, and the filter bottle cover is arranged corresponding to the reverse osmosis assembly.

[0017] The utility model also provides a device with a water purification function, wherein the device with a water purification function comprises the above-mentioned filter element assembly, and the filter element assembly comprises the above-mentioned filter cover assembly.

[0018] The technical solution of the utility model is to set a limit platform on the filter bottle cover, the limit platform is provided with a slot, and a crimping part is set on the side of the filter element handle facing the filter element cover, the crimping part passes through the slot, and the filter element cover is limited in the up and down directions by the crimping part. In this way, the filter element cover can be prevented from moving upward, and the flow channel joint of the filter element cover and the filter bottle cover can be prevented from being misaligned, and the connection between the filter element cover and the filter bottle cover can be prevented from leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 This is a schematic structural diagram of an embodiment of a filter element assembly of the utility model;

[0021] Figure 2 for Figure 1 Exploded view of the middle filter element assembly;

[0022] Figure 3 for Figure 1 A cross-sectional view of the middle filter element assembly;

[0023] Figure 4 for Figure 3 Schematic diagram of the structure of the middle filter element assembly with the filter element removed;

[0024] Figure 5 for Figure 1 Exploded view of the reverse osmosis assembly;

[0025] Figure 6 It is an exploded view of the filter assembly and filter element cover of the utility model;

[0026] Figure 7 It is a cross-sectional view of the filter assembly and filter element cover of the utility model;

[0027] Figure 8 This is a structural schematic diagram of an embodiment of the filter cover assembly of the utility model;

[0028] Fig. 9 for Figure 8 Exploded view of the middle filter cover assembly;

[0029] Fig.10 for Figure 8 A cross-sectional view of the middle filter cover assembly;

[0030] Fig.11 for Figure 8 Schematic diagram of the structure of the middle filter cover assembly with the outer cover plate removed;

[0031] Fig.12 for Fig.11 Exploded view of the middle filter cover assembly structure.

[0032] Description of Figure Numbers:

[0033]

[0034]

[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0039] The utility model proposes an embodiment of a filter cover assembly, which is mainly used for a filter element assembly. The filter element assembly is used to be installed in a device with a water purification function to filter raw water (i.e., tap water) passing through it so that the water quality meets the needs of users before being used by users.

[0040] See also Figure 8 and Fig. 9In one embodiment of the present invention, the filter cover assembly 400 includes a filter bottle cover 410, a filter element cover 430 and a filter element handle 440; the filter bottle cover 410 is provided with an escape port 416, a limiting platform 418 is provided on the periphery of the escape port 416, and the limiting platform 418 is provided with a slot 418a; the filter element cover 430 is detachably mounted at the escape port 416; the filter element handle 440 is movably connected to the filter element cover 430, and the filter element handle 440 can lift the filter element cover 430 out of the escape port 416, and a crimping portion 441a is provided on the side of the filter element handle 440 facing the filter element cover 430, and the crimping portion 441a passes through the slot 418a to limit the filter element cover 430.

[0041] For more information, see Fig.12 A limiting platform 418 is further provided on the outer periphery of the avoidance opening 416, and a slot 418a is opened on the limiting platform 418. When the filter element handle 440 slides from the second position to the first position, the crimping portion 441a passes through the slot 418a, and the crimping portion 441a is at least partially located above the filter element cover 430, so as to limit the filter element cover 430 in the up and down directions through the crimping portion 441a, prevent the flow channel opening where the filter element cover 430 and the filter bottle cover 410 are docked from being misaligned, and ensure that the docking point between the filter bottle cover 410 and the filter element cover 430 will not cause water leakage.

[0042] It should be noted that the number of the crimping parts 441a can be one or more, the number of the slots 418a and the pressing grooves 432 can be set to only one, or can be set to multiple corresponding to the number of crimping parts 441a. Preferably, the number of the crimping parts 441a, the slots 418a and the pressing grooves 432 are kept consistent to improve the limiting effect of the crimping part 441a.

[0043] See also Fig.12 Furthermore, a pressing groove 432 is provided on the filter element cover 430, the crimping portion 441a passes through the slot 418a and is at least partially located in the pressing groove 432, and the crimping portion 441a is used to abut against the groove wall of the pressing groove 432 to limit the filter element cover 430.

[0044] See also Fig. 9 Furthermore, the avoidance opening 416 is arranged in a circular shape, and the limiting platform 418 has a relative inner side and outer side. The inner contour of the limiting platform 418 matches the contour of the avoidance opening 416, and the outer contour of the limiting platform 418 matches the inner contour of the filter element handle 440.

[0045] See also Fig.12In one embodiment, the slot 418a is formed by passing through the outer side of the limiting platform 418 to the inner side of the limiting platform 418. Furthermore, the height of the slot 418a is not greater than half of the height of the limiting platform 418. Specifically, since the crimping portion 441a passes through the slot 418a to limit the filter element cover 430, when the filter element cover 430 is subjected to an upward force, the force will be transmitted to the limiting platform 418. In order to ensure the structural strength of the limiting platform 418, the height of the slot 418a is set to be not greater than half of the height of the limiting platform 418, that is, the height of the slot 418a is equal to or less than half of the height of the limiting platform 418. Of course, in order to avoid the crimping portion 441a from being easily broken due to insufficient strength, the thickness of the crimping portion 441a is set to be not less than one-third of the height of the limiting platform 418. And the thickness of the crimping portion 441a is consistent with the height of the slot 418a, that is, the height of the slot 418a is not less than one-third of the height of the limiting platform 418.

[0046] See also Figures 1 to 4 The filter cover assembly 400 proposed in the utility model is a part of the filter element assembly 10, and the filter element assembly 10 includes a filter bottle 100, a filter assembly 200, a reverse osmosis assembly 300, and a filter cover assembly 400; a receiving chamber 110 is formed inside the filter bottle 100, and the filter assembly 200 and the reverse osmosis assembly 300 are arranged in the receiving chamber 110, and the filter assembly 200 is located inside the reverse osmosis assembly 300, or the reverse osmosis assembly 300 is located inside the filter assembly 200, or the filter assembly 200 is located on one side of the reverse osmosis assembly 300. It should be noted that the filter assembly 200 and the reverse osmosis assembly 300 are respectively arranged in two independent chambers in the filter bottle 100, that is, a first chamber 111 and a second chamber 112 are formed in the receiving chamber 110, the filter assembly 200 is arranged in the first chamber 111, and the reverse osmosis assembly 300 is arranged in the second chamber 112. The filter bottle 100 is barrel-shaped, with an open top 120, and the filter cover assembly 400 covers the open top 120. The filter cover assembly 400 is provided with at least one water inlet and at least one water outlet, and both the at least one water inlet and the at least one water outlet are connected to the accommodating chamber 110.

[0047] See also Figures 2 to 4Specifically, the filter assembly 200 and the reverse osmosis assembly 300 are both arranged in the accommodating chamber 110 of the filter bottle 100; the filter assembly 200 may include a pre-filter element 210, and may also include a post-filter element 220, and may also include a pre-filter element 210 and a post-filter element 220 at the same time. The filter assembly 200 will filter out impurities contained in the water and / or improve the taste of the water. The reverse osmosis assembly 300 may include a reverse osmosis filter element 310. The reverse osmosis assembly 300 will filter out various salt ions and other solutes in the water, thereby reducing the concentration of various salt ions and other solutes in the water and reducing the TDS value of the raw water.

[0048] See also Figure 3 and Figure 6 In one embodiment, the filter cover assembly 400 includes a filter bottle cover 410, a filter bottle handle 420, a filter element cover 430, a filter element handle 440 and an outer cover plate 450. The filter bottle handle 420 is rotatably connected to the filter bottle cover 410 to facilitate the user to directly lift the entire filter element assembly 10 through the filter bottle handle 420. The filter bottle cover 410 is provided with a first water inlet 411, a first water outlet 412, a second water inlet 413, a second water outlet 414 and a wastewater outlet 415 (i.e., one end of the plurality of first water flow channels 410a away from the second water flow channel 430a). Correspondingly, the first water inlet 411 is the raw water inlet, that is, the water inlet connected to the water inlet side of the pre-filter element 210, for raw water to flow in; the first water outlet 412 is the water outlet connected to the water outlet side of the pre-filter element 210, for water filtered by the pre-filter element 210 to flow out; the second water inlet 413 is the water inlet connected to the water inlet side of the reverse osmosis filter element 310, and its water flow flows into the first chamber 111 from the second water inlet 413 after the pressure is increased by the pump and is filtered by the reverse osmosis filter element 310; the wastewater outlet 415 is the outlet of the wastewater filtered by the reverse osmosis filter element 310, and is mainly used to allow the wastewater after passing through the reverse osmosis filter element 310 to flow out.

[0049] It should be noted that the second water outlet 414 can be a water outlet connected to the water outlet side of the reverse osmosis filter element 310, or a water outlet connected to the water outlet side of the post filter element 220. When the filter assembly 200 only includes the pre-filter element 210, the second water outlet 414 is used as the water outlet of the pure water after being filtered by the reverse osmosis filter element 310, and can be directly connected to the pure water outlet side of the reverse osmosis filter element 310 for pure water to flow out; when the filter assembly 200 only includes the post filter element 220, or includes both the pre-filter element 210 and the post filter element 220, the second water outlet 414 is used as the water outlet of the pure water after being filtered by the post filter element 220, and the pure water after being filtered by the reverse osmosis filter element 310 should also flow into the post filter element 220 for re-filtration, and at this time, the second water outlet 414 is connected to the water outlet side of the post filter element 220.

[0050] Furthermore, filter bottle handle mounting grooves (not shown in the figure) are provided on opposite sides of the filter bottle cover 410, and the filter bottle handle 420 is roughly U-shaped, and filter bottle handle rotating shafts (not shown in the figure) are provided at both ends. The filter bottle handle rotating shaft is set in the filter bottle handle mounting groove and can be rotated relative to the filter bottle handle mounting groove, so that the filter bottle handle 420 can be rotated relative to the filter bottle cover 410, so that the user can directly carry the filter element assembly 10 by the filter bottle handle 420. The outer cover plate 450 covers the entire filter bottle cover 410 and the filter element cover 430. On the one hand, it can prevent dust and the like from entering the gap between the filter element cover 430 and the filter bottle cover 410, while also ensuring the consistency of the appearance of the filter element assembly 10. On the other hand, the outer cover plate 450 covers the entire filter element cover 430, and can also press the filter element cover 430, and limit the filter element cover 430 in the up and down directions to avoid misalignment of the flow channel joint between the filter element cover 430 and the filter bottle cover 410 when the filter element cover 430 is subjected to a large upward force, thereby causing water leakage at the connection between the filter element cover 430 and the filter bottle cover 410.

[0051] See also Fig.12 Furthermore, the filter cover assembly 400 also includes a filter element handle 440, and filter element handle slide grooves 431 are arranged on opposite sides of the filter element cover 430. The filter element handle 440 is roughly U-shaped, and filter element handle sliding shafts 442a are arranged at both ends. The filter element handle sliding shaft 442a is arranged in the filter element handle slide groove 431, and can rotate and slide relative to the filter element handle slide groove 431, so that the filter element handle 440 is movable relative to the filter element cover 430. Considering that the filter element, that is, the pre-filter element 210 and / or the post-filter element 220 has a shorter service life than the reverse osmosis filter element 310, when the service life of the filter element expires, the entire filter assembly 200 can be disassembled from the filter element assembly 10 by lifting the filter element handle 440, which is convenient for users to use.

[0052] See also Fig. 9 and Fig.12Furthermore, the filter bottle cover 410 may be provided with an escape port 416, and the filter element cover 430 is provided at the escape port 416 for installation of the filter assembly 200. The filter element cover 430 is provided corresponding to the first chamber 111, and the filter element cover 430 is provided at the escape port 416 as an independent component, and is detachably connected to the filter bottle cover 410. When replacing the filter assembly 200, it is only necessary to remove the filter element cover 430, and then replace the filter assembly 200; or, the filter element cover 430 is connected to the filter element, and by removing the filter element cover 430, the entire filter element can be directly taken out to achieve the replacement of the filter assembly 200. It should be emphasized that the connection method between the filter element cover 430 and the filter element can be a direct connection method or an indirect connection method, such as connecting the filter element cover 430 and the filter element through the upper end cover 250, which is not specifically limited.

[0053] Please continue reading Fig. 9 and Fig.12 In one embodiment, the filter element handle slide groove 431 extends along the length direction of the filter element cover 430, and the filter element handle slide shaft 442a can slide in the filter element handle slide groove 431. Further, track grooves 417a are formed on opposite sides of the filter bottle cover 410, and sliding parts 442b are formed on opposite sides of the filter element handle 440. The filter element handle 440 has a first position in which the sliding part 442b slides into the track groove 417a, and a second position in which the sliding part 442b slides out of the track groove 417a. When the filter element handle 440 is in the first position, the track groove 417a limits the sliding part 442b in a sliding direction perpendicular to the sliding part 442b. Specifically, the filter element handle sliding shaft 442a can slide in the filter element handle sliding groove 431. When the user needs to remove and replace the pre-filter element 210, the filter element handle 440 needs to be slid from the first position to the second position first, and then the filter element handle 440 is rotated before it can be lifted out. Track portions 417 are provided on both sides of the avoidance opening 416, and the track groove 417a is formed on the inner side of the track portion 417. When it slides to the first position, the sliding portion 442b and the track portion 417 are limited in the up and down directions, and the track portion 417 limits the filter element handle 440, so that the filter element handle 440 cannot be directly rotated in the up and down directions, and the filter element handle 440 is restricted from rotating. At the same time, the filter element handle 440 can also be used to press the filter element cover 430, so as to prevent the filter element cover 430 from moving upward, which causes the flow channel joint between the filter element cover 430 and the filter bottle cover 410 to be misaligned, thereby causing water leakage at the connection between the filter element cover 430 and the filter bottle cover 410.

[0054] See also Figure 7Furthermore, the upper surface of the filter element handle 440 is flush with the upper surface of the filter element cover 430. Specifically, the upper surface of the filter element handle 440 is flush with the upper surface of the filter element cover 430, ensuring the consistency of the upper surface of the filter assembly 200. It should be noted that the upper surface of the filter element handle 440 is flush with the upper surface of the filter element cover 430, which refers to the state when the filter element handle 440 is in the first position.

[0055] See also Fig.12 In one embodiment, the filter element handle 440 includes a pull rod 441 and two slide rods 442 connected to both ends of the pull rod 441, the slide rod 442 is connected to the filter element cover 430, and the crimping portion 441a is provided on the pull rod 441 and located between the two slide rods 442. Specifically, the filter element handle 440 includes a pull rod 441, and the two ends of the pull rod 441 are respectively connected to the slide rods 442, the slide rod 442 is slidably connected to the filter element cover 430, and can slide and rotate relative to the filter element cover 430. The crimping portion 441a is specifically provided on the pull rod 441, and is provided on a side of the pull rod 441 close to the filter element cover 430.

[0056] See also Fig.12 Furthermore, the filter element handle 440 is arranged in a U shape, and the inner wall surface of the filter element handle 440 at least abuts against a part of the outer wall surface of the filter element cover 430. The inner wall surface of the filter element handle 440 abuts against a part of the outer wall surface of the filter element cover 430, with a compact layout, a reasonable structure, and reasonable use of space, so that the filter cover can be miniaturized.

[0057] See also Fig.12 Furthermore, filter element handle slide grooves 431 are provided on opposite sides of the filter element cover 430, and filter element handle sliding shafts 442a are provided on the two sliding rods 442, and the filter element handle sliding shafts 442a are rotatably provided on the filter element handle slide grooves 431.

[0058] Specifically, the filter element handle 440 is rotatable relative to the filter element cover 430. Considering that the service life of the filter element, that is, the pre-filter element 210 and / or the post-filter element 220 is shorter than that of the reverse osmosis filter element 310, when the service life of the pre-filter element 210 and / or the post-filter element 220 expires, the entire filter assembly 200 can be removed from the filter element assembly 10 by lifting the filter element handle 440, which is convenient for users to use.

[0059] See also Figure 3 , Figure 6 and Figure 7In one embodiment, the filter assembly 200 includes a filter element, a water outlet pipe 230, a welding sheet 240, an upper end cover 250, a lower end cover 260, and a separator 270. It should be noted that the filter element can be a pre-filter element 210, or a post-filter element 220, or can include both the pre-filter element 210 and the post-filter element 220. When the filter element includes both the pre-filter element 210 and the post-filter element 220, the pre-filter element 210 and the post-filter element 220 can be arranged up and down, or left and right, or inside and outside, and their specific positions are not limited. The pre-filter element 210 and the post-filter element 220 are separated by the partition 270, so that when the filter assembly 200 is installed in a device with a water purification function for use, the partition 270 and other structures in the filter element assembly 10 are enclosed to form a first filter chamber 610 and a second filter chamber 620 that are independent of each other. The pre-filter element 210 and the post-filter element 220 are respectively arranged in the first filter chamber 610 and the second filter chamber 620, so that the water flow path through the pre-filter element 210 and the water flow path through the post-filter element 220 do not affect each other.

[0060] When the filter element includes both the pre-filter element 210 and the post-filter element 220, since the pre-filter element 210 is used to filter out most of the impurities in the raw water, the overall volume of the pre-filter element 210 needs to be set larger, and the water passing through the post-filter element 220 has been filtered twice by the pre-filter element 210 and the reverse osmosis filter element 310, and the solute content in the water is already very small, so the overall volume of the post-filter element 220 can be set relatively small. Arranging the pre-filter element 210 and the post-filter element 220 in the up-down direction is conducive to the reasonable arrangement of the volume of the pre-filter element 210 and the post-filter element 220, and can ensure the filtering effect of the pre-filter element 210 and the post-filter element 220. Specifically, the pre-filter element 210 is located above the post-filter element 220, that is, the pre-filter element 210 is arranged close to the filter element cover 430, and the post-filter element 220 is arranged on the side of the pre-filter element 210 away from the filter element cover 430.

[0061] See also Figure 3 , Figure 5 and Figure 6In one embodiment, the pre-filter element 210 and the post-filter element 220 are both hollow cylindrical, wherein one end of the pre-filter element 210 is connected to the upper end cover 250, and the other end is connected to the upper surface of the partition 270. The pre-filter element 210 is connected to the upper end cover 250 and the partition 270 by gluing to prevent the water from flowing out directly through the connection between the pre-filter element 210, the upper end cover 250 and the partition 270 without filtering through the pre-filter element 210. Of course, the pre-filter element 210, the upper end cover 250 and the partition 270 can also be connected in other ways, and there is no specific limitation on this. The partition 270 can be cylindrical, and the post-filter element 220 is arranged in the cylindrical partition 270, and the pre-filter element 210 and the post-filter element 220 are separated by the partition 270. The bottom of the cylindrical partition 270 is an opening, and the opening is used for the post-filter element 220 to be placed in the partition 270, and the opening is sealed by the lower end cover 260. The post-filter element 220 disposed inside the cylindrical partition 270 is respectively glued to the top inside the partition 270 and the lower end cover 260 to prevent the water from flowing out directly through the connection between the post-filter element 220 and the top inside the partition 270 and the lower end cover 260 without being filtered by the post-filter element 220. Of course, the post-filter element 220 and the top inside the partition 270 and the lower end cover 260 can also be connected in other ways, and there is no specific limitation on this.

[0062] See also Figure 3 In one embodiment, the length of the pre-filter element 210 is greater than the length of the post-filter element 220 to ensure the filtering effect of the pre-filter element 210 and the post-filter element 220. Furthermore, the length of the pre-filter element 210 is 2-3 times the length of the post-filter element 220.

[0063] It should be noted that in order to ensure the compactness and miniaturization of the structure of the filter assembly 200, since the pre-filter element 210 is arranged in a hollow cylindrical shape and the post-filter element 220 is arranged below the pre-filter element 210, an outlet pipe 230 can be arranged inside the pre-filter element 210. One end of the outlet pipe 230 is connected to the water outlet side of the post-filter element 220, and the other end is connected to the water outlet channel on the filter element cover 430, so that the water inlet channel and the water outlet channel of the filter assembly 200 can be integrated on the filter element cover 430, thereby ensuring the compactness of the structure of the filter assembly 200 and realizing the miniaturization of the filter assembly 200 and the filter element assembly 10 installed with the filter assembly 200. In order to ensure the independence of the water outlet flow path of the post-filter element 220 and the water outlet flow path of the pre-filter element 210, the sealing of the two ends of the water outlet pipe 230 can also be ensured by setting a corresponding sealing structure, for example, through two welding plates 240, which are respectively connected to the filter element cover 430 and the partition 270 to form a sealing groove for installing the seal, and the seal is installed in the sealing groove to limit the position of the seal. At the same time, the two ends of the water outlet pipe 230 are sealed by the sealing effect of the seal.

[0064] See also Figure 6 and Figure 7 Furthermore, the entire filter assembly 200 is integrated, the filter element cover 430 is located at the top of the entire filter assembly 200, and the filter element cover 430 is connected to the upper end cover 250. The matching method between the filter element cover 430 and the upper end cover 250 can be a sealed connection, a glue connection, or other connection methods.

[0065] See also Fig.10 and Fig.12 Furthermore, a sealing ring 500 can be provided at the joint between the flow opening of the filter bottle cover 410 and the flow opening of the filter element cover 430 to ensure the sealing of the flow path. When the filter element cover 430 is installed at the avoidance opening 416 of the filter bottle cover 410, the sealing ring 500 can be elastically deformed to seal the joint between the flow opening of the filter bottle cover 410 and the flow opening of the filter element cover 430, and at the same time, it can also ensure that the filter element cover 430 will not easily shake in the up and down directions relative to the filter bottle cover 410. The material of the sealing ring 500 can be set to rubber or silicone material, of course, it can also be set to other materials, and there is no specific limitation on this.

[0066] See also Figures 2 to 5In one embodiment, the reverse osmosis component 300 includes a reverse osmosis filter element 310, a central tube 340, a reverse osmosis top cover 320 and a reverse osmosis bottom cover 330, wherein the reverse osmosis filter element 310 is sleeved on the outer wall surface of the central tube 340, and the reverse osmosis filter element 310 is arranged between the reverse osmosis top cover 320 and the reverse osmosis bottom cover 330, and the upper and lower ends of the reverse osmosis filter element 310 are fixed by the reverse osmosis top cover 320 and the reverse osmosis bottom cover 330, and further, the reverse osmosis top cover 320 and the reverse osmosis bottom cover 330 are also provided with a reverse osmosis filter element 310 groove for embedding the end of the reverse osmosis filter element 310; thus, the reverse osmosis top cover 320 and the reverse osmosis bottom cover 330 jointly fix the reverse osmosis filter element 310 in the filter bottle 100.

[0067] See also Figures 3 to 5 The reverse osmosis assembly 300 is arranged in the accommodating chamber 110, and the accommodating chamber 110 is divided into a first chamber 111 and a second chamber 112 by the central tube 340, and the second chamber 112 is located at the periphery of the first chamber 111. Specifically, the central tube 340 is arranged in a hollow cylindrical shape, and the interior of the central tube 340 forms the first chamber 111, and the exterior of the hollow tube forms the second chamber 112. The filter assembly 200 is arranged in the first chamber 111, and a first water gap 710 is formed between the pre-filter element 210 and the inner wall surface of the central tube 340, and the first water gap 710 is communicated with the first water inlet 411. The reverse osmosis assembly 300 is arranged in the second chamber 112, and a second water gap 720 is formed between the reverse osmosis filter element 310 and the inner wall surface of the filter bottle 100, and the second water gap 720 is communicated with the second water inlet 413.

[0068] When the filter element of the filter assembly 200 includes a pre-filter element 210 and a post-filter element 220, the partition 270 divides the first chamber 111 into a first filter chamber 610 and a second filter chamber 620 that are independent of each other. The pre-filter element 210 is placed in the first filter chamber 610, and the post-filter element 220 is placed in the second filter chamber 620 to ensure that the water flow path through the pre-filter element 210 and the water flow path through the post-filter element 220 do not interfere with each other. Furthermore, a first water passage hole 341 is opened at a position of the central tube 340 corresponding to the second filter chamber 620, so that the pure water filtered by the reverse osmosis filter element 310 can directly flow into the second filter chamber 620 through the first water passage hole 341, and be filtered again through the post-filter element 220, without having to set a separate pipeline between the pure water outlet side of the reverse osmosis filter element 310 and the water inlet side of the post-filter element 220, thereby realizing the compactness of the structure of the filter element assembly 10. The first chamber 111 and the second filter chamber 620 are connected by the first water passage hole 341, which further shortens the flow path between the pure water outlet side of the reverse osmosis filter element 310 and the water inlet side of the post-filter element 220, thereby improving the water outlet efficiency of the filter element assembly 10.

[0069] See also Figure 4 and Figure 6 Further, the partition 270 is provided in a barrel shape, the post filter element 220 is provided in the partition 270, the peripheral wall of the partition 270 and the inner wall of the first central tube 340 form the third water-passing gap 730; the peripheral wall of the partition 270 is provided with a second water-passing hole 271, the second water-passing hole 271 is connected with the first water-passing hole 341, and the first chamber 111 is connected with the second filter chamber 620 through the first water-passing hole 341 and the second water-passing hole 271. By providing the partition 270 in a barrel shape, it can be ensured that the post filter element 220 provided in the barrel-shaped partition 270 is not easily torn when floating up and down under the action of water pressure, thereby affecting the service life of the post filter element 220.

[0070] The filter element assembly 10 proposed in the present invention has a flow path as follows:

[0071] See also Figure 1 and Figure 3 , the raw water flows into the first water gap 710 through the first water inlet 411, and after being filtered by the pre-filter element 210, flows out from the water outlet channel 211 between the inner wall of the pre-filter element 210 and the outer wall of the outlet pipe 230, and flows out from the first water outlet 412. After being pressurized by the booster pump, the water flowing out of the first water outlet 412 flows into the second water gap 720 through the second water inlet 413, and enters from the side of the reverse osmosis filter element 310 (here, it means that the reverse osmosis filter element 310 adopts a 3D water-saving membrane. If the reverse osmosis filter element 310 adopts an ordinary filter membrane, the water enters from the bottom of the reverse osmosis filter element 310). After being filtered by the reverse osmosis filter element 310, the water flow is divided into two paths: a pure water path and a waste water path. The pure water flows to the post-filter element 220 for re-filtration, and the waste water flows out of the filter element assembly 10 through the waste water outlet 415. Among them, the pure water first flows through the first water hole 341 on the central tube 340 to the third water gap 730, and then flows through the second water hole 271 on the partition 270 to the post filter element 220 for filtration. The pure water filtered by the post filter element 220 flows from the inside of the post filter element 220 to the water outlet pipe 230, and finally flows out from the second water outlet 414 for user use.

[0072] It should be emphasized that if the filter element does not include the post-filter element 220, the pure water filtered by the reverse osmosis filter element 310 directly flows out from the second water outlet 414 for use by the user.

[0073] The technical solution of the utility model is to set a limit platform 418 on the filter bottle cover 410, the limit platform 418 is provided with a slot 418a, and a crimping part 441a is set on the side of the filter element handle 440 facing the filter element cover 430, the crimping part 441a passes through the slot 418a, and the filter element cover 430 is limited in the up and down direction by the crimping part 441a. In this way, the filter element cover 430 can be prevented from moving upward, and the flow channel joint of the filter element cover 430 and the filter bottle cover 410 can be prevented from being misaligned, and the connection between the filter element cover 430 and the filter bottle cover 410 can be prevented from leaking.

[0074] The utility model also provides a filter element assembly, which includes a filter bottle, a filter assembly, a reverse osmosis assembly, and the filter cover assembly. The specific structure of the filter cover assembly refers to the above embodiment. Since the filter element assembly adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0075] The utility model also proposes a device with a water purification function, and the device with a water purification function includes the above-mentioned filter element assembly. The specific structure of the filter element assembly refers to the above-mentioned embodiment. Since the device with a water purification function adopts all the technical solutions of all 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 repeated here. Among them, the device with a water purification function is any one of a water purifier, a water purifier, a water dispenser, a pure water machine, an ice machine, a soft and clean all-in-one machine, or a clean and hot all-in-one machine.

[0076] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A filter cover assembly, used for a filter element assembly, characterized in that: The filter cover assembly comprises: A filter bottle cover, wherein the filter bottle cover is provided with an avoidance opening, a limiting platform is provided on the periphery of the avoidance opening, and the limiting platform is provided with a slot; A filter element cover is detachably mounted at the avoidance opening; and A filter element handle is movably connected to the filter element cover, and the filter element handle can lift the filter element cover out of the avoidance opening. A crimping portion is provided on the side of the filter element handle facing the filter element cover, and the crimping portion passes through the slot to limit the filter element cover.

2. The filter cover assembly according to claim 1, characterized in that: The filter element cover is provided with a pressing groove, the pressing portion passes through the slot and is at least partially located in the pressing groove, and the pressing portion is used to abut against the groove wall of the pressing groove to limit the filter element cover.

3. The filter cover assembly according to claim 2, characterized in that: The number of the crimping parts is set to be at least one, and the number of the crimping grooves is consistent with the number of the crimping parts.

4. The filter cover assembly according to claim 2, characterized in that: The avoidance opening is arranged in a circular shape, the limiting platform has a relative inner side and outer side, the inner side contour of the limiting platform matches the contour of the avoidance opening, and the outer side contour of the limiting platform matches the inner side contour of the filter element handle.

5. The filter cover assembly according to claim 2, characterized in that: The height of the slot is no greater than half the height of the limiting platform.

6. The filter cover assembly according to any one of claims 1 to 5, characterized in that: The filter element handle comprises a pull rod and two sliding rods connected to both ends of the pull rod, the sliding rod is connected to the filter element cover, and the crimping portion is arranged on the pull rod and located between the two sliding rods.

7. The filter cover assembly according to claim 6, characterized in that: The filter element handle is arranged in a U shape.

8. The filter cover assembly according to claim 6, characterized in that: Filter element handle sliding grooves are arranged on opposite sides of the filter element cover, and filter element handle sliding shafts are arranged on the two sliding rods. The filter element handle sliding shafts are rotatably arranged in the filter element handle sliding grooves.

9. The filter cover assembly according to claim 8, characterized in that: The filter element handle slide groove extends along the length direction of the filter element cover, and track grooves are formed on opposite sides of the filter bottle cover. Sliding parts are formed on opposite sides of the filter element handle. The filter element handle has a first position in which the sliding part slides into the track groove, and a second position in which the sliding part slides out of the track groove. When the filter element handle is in the first position, the track groove limits the sliding part in a sliding direction perpendicular to the sliding part.

10. A filter element assembly, characterized in that: include: A filter bottle having a receiving cavity; A reverse osmosis component is arranged in the accommodating chamber, the reverse osmosis component comprises a reverse osmosis filter element and a central tube, the central tube is arranged in the accommodating chamber and divides the accommodating chamber into a first chamber and a second chamber, the second chamber is located at the periphery of the first chamber, and the reverse osmosis filter element is arranged in the second chamber; A filter assembly is detachably disposed in the first chamber; as well as According to any one of claims 1 to 9, the filter element cover is arranged corresponding to the filter assembly, and the filter bottle cover is arranged corresponding to the reverse osmosis assembly.

11. A device with water purification function, characterized in that: Comprising the filter element assembly as claimed in claim 10.

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