Multi-stage laminated filtering device and water purifier

Abstract

The utility model discloses a multistage laminated filter device and water purifier, including filter flask subassembly and multistage laminated filter element structure, the filter flask subassembly has the inner chamber that is used for holding multistage laminated filter element structure, the one end of said inner chamber is open, the opening is detachably connected with the end cover; the multi-stage laminated filter element structure comprises filter shells and filter elements, each stage of filter element is arranged in each stage of filter shell, and the adjacent filter shells are detachably connected. According to the multi-stage filter element disclosed by the utility model, the structure is convenient to disassemble, a certain filter element can be disassembled and replaced after the service life of the filter element is due, other filter element structures can be continuously used, the cost is reduced, and meanwhile, if the filter element in the arranged filter element structure can be cleaned, the filter element structure can be disassembled and cleaned after the filter element is blocked so as to recover the performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of water purification, and in particular relates to a multi-stage stacked filtering device and a water purifier. Background Art

[0002] At present, the filter element structure used in the water purification industry is a spin-melt disposable structure or a single-stage structure. Among them, the spin-melt disposable structure filter element has a low utilization rate and can only be discarded after the service life is reached. It is inconvenient for users to disassemble and clean it, which is not environmentally friendly and wastes materials. When the user needs multi-stage filtration, the single-stage structure needs to be configured separately in multiple stages. The structure is loose and occupies a large volume, which is not environmentally friendly and uses a large amount of materials. Utility Model Content

[0003] In view of the above-mentioned defects, the utility model provides a multi-stage stacked filtering device and a water purifier, which can realize multi-stage stacking and splicing of multiple filter elements, occupy a small volume and are easy to disassemble and assemble, making it convenient for users to remove, clean or replace the filter material.

[0004] A multi-stage stacked filtration device comprises a filter bottle assembly and a multi-stage stacked filter core structure, wherein the filter bottle assembly has an inner cavity for accommodating the multi-stage stacked filter core structure, one end of the inner cavity is open, and the opening is detachably connected to the end cover; the multi-stage stacked filter core structure comprises a filter housing and a filter core, each stage of the filter core is placed in each stage of the filter housing, and adjacent filter housings are detachably connected.

[0005] Preferably, the detachable connection between the inner cavity and the end cover is a threaded connection; and the detachable connection between adjacent filter housings is a snap connection between a screw-in protrusion and a screw-in groove.

[0006] Preferably, the screw-in protrusion is arranged at one end of the filter housing, and the screw-in groove is arranged at the other end of the filter housing; the screw-in protrusion has a clamping portion, and the screw-in groove has a space for the screw-in protrusion to be rotatably clamped, and the screw-in groove is provided with an abutment portion cooperating with the clamping portion, the screw-in protrusion and the screw-in groove are rotationally clamped, and when the screw-in protrusion is rotated to a preset position, the clamping portion can be tightly abutted against the abutment portion to fix the relative position of the screw-in protrusion and the screw-in groove.

[0007] Preferably, an annular groove is provided at the connection of the filter housing, and a sealing ring is provided in the groove.

[0008] Preferably, a protrusion is provided on the outer wall surface of the filter housing.

[0009] Preferably, the filter bottle assembly further comprises a decorative cover, and the decorative cover is snap-connected with the end cover.

[0010] Preferably, a first water inlet and a first water outlet are provided on the same side of the filter bottle assembly, and a first gap for water to pass is provided between the inner wall surface of the filter bottle assembly and the outer wall surface of the multi-stage stacked filter element structure.

[0011] Preferably, the multi-stage stacked filter element structure includes a first-stage filter element structure and a final-stage filter element structure arranged along the axial direction of the filter bottle assembly, the first-stage filter element structure includes a first filter housing and a first filter element, the first filter element and the first filter housing have a second gap, the first water inlet enters the first filter element through the first gap and the second gap, the final-stage filter element structure is provided with a second water outlet, and the first water outlet is connected to the second water outlet.

[0012] Preferably, several levels of intermediate filter core structures are provided between the first-stage filter core structure and the final-stage filter core structure.

[0013] The utility model also discloses a water purifier, comprising the above-mentioned multi-stage stacked filtering device and a shell, wherein the multi-stage stacked filtering device is installed in the shell.

[0014] The beneficial effects of the utility model are:

[0015] (1) The filter element of the multi-stage stacked filter device disclosed in the utility model is directly arranged in a stacked manner, which has a compact structure and a small volume;

[0016] (2) The multi-stage stacked filter device disclosed in the utility model is easy to disassemble. If the filter element in the filter element structure is washable, the filter element structure can be disassembled and cleaned to restore performance after the filter element is clogged;

[0017] (3) When the service life of a filter element in the multi-stage stacked filtering device disclosed in the utility model expires, it can be disassembled and replaced, and other filter element structures can continue to be used, thereby reducing costs;

[0018] (4) The multi-stage stacked filter device disclosed in the utility model can freely configure the filter element structure through the connection structure of the same specification.

[0019] The number and types of structures, such as filter element structures that can be increased, decreased, or replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0021] Figure 1 It is a cross-sectional view of a laminated filter element structure of an embodiment of the utility model;

[0022] Figure 2 It is a partial enlarged view of an embodiment of the utility model;

[0023] Figure 3 It is an exploded schematic diagram of a laminated filter element structure of an embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of a filter housing structure in a stacked filter element structure of an embodiment of the utility model.

[0025] Reference numerals:

[0026] 1-Filter bottle assembly;

[0027] 2-multi-stage stacked filter element structure, 2.1-first stage filter element structure, 2.2-second stage filter element structure, 2.3-third stage filter element structure, 2.4-final stage filter element structure, 2.5-filter housing, 2.51-screw-in protrusion, 2.52-screw-in groove, 2.53-sealing ring, 2.54-protruding piece, 2.6-filter element,

[0028] 3-end cover, 3.1-end cover seal, 3.2-thread, 3.3-snap connection, 4-first water inlet, 5-first water outlet, 6-decorative cover. DETAILED DESCRIPTION

[0029] 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 in 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.

[0030] like Figure 1 As shown, an embodiment of the utility model provides a multi-stage stacked filtering device, including a filter bottle assembly 1 and a multi-stage stacked filter element structure 2.

[0031] The filter bottle assembly 1 has an inner cavity for accommodating a multi-stage stacked filter element structure 2, one end of the inner cavity is open, and the opening is detachably connected to the end cap 3, and a space for water filtration is formed between the inner cavity of the filter bottle assembly 1 and the end cap 3. An end cap seal 3.1 is provided at the connection between the end cap 3 and the inner cavity, such as Figure 2 As shown, in this embodiment, the end cap seal 3.1 is a sealing ring, and the detachable connection between the end cap 3 and the inner cavity is a threaded connection 3.2. During installation, the end cap 3 is screwed into the inner cavity of the filter bottle assembly 1, and the sealing ring plays a sealing role. The filter bottle assembly 1 also includes a decorative cover 6, and the rear end of the end cap 3 is detachably connected to the decorative cover 6. In this embodiment, the end cap 3 and the decorative cover 6 are connected by a buckle 3.3.

[0032] like Figure 3As shown, the multi-stage stacked filter core structure includes a multi-stage filter core structure, and each stage of the filter core structure is stacked and detachably connected. The multi-stage stacked filter core structure includes a first-stage filter core structure 2.1 and a final-stage filter core structure 2.4 arranged along the axial direction, and a second water outlet is arranged on the final-stage filter core structure 2.4. A plurality of intermediate filter core structures can also be arranged between the first-stage filter core structure 2.1 and the final-stage filter core structure 2.4. Of course, the intermediate filter core structure can also be omitted. In this embodiment, the intermediate filter core structure is provided with two stages, namely the second-stage filter core structure 2.2 and the third-stage filter core structure 2.3, and the filter core structures are detachably connected. During filtration, the first-stage filter core structure 2.1, the second-stage filter core structure 2.2, the third-stage filter core structure 2.3 and the final-stage filter core structure 2.4 are sequentially passed through. There is a first gap between the outer wall of the filter housing 2.5 of the multi-stage stacked filter core structure 1 and the inner cavity of the filter bottle assembly 1, and the first gap allows water to pass through. The multi-stage stacked filter element structure includes a filter housing 2.5 and a filter element. The filter element is placed in the filter housing 2.5, and adjacent filter housings 2.5 are detachably connected. The first-stage filter element structure 2.1 includes a first filter housing and a first filter element. The first filter element and the first filter housing have a second gap. The first water inlet 4 enters the first filter element through the first gap and the second gap for inputting water. The second water outlet of the final filter element structure 2.4 is connected to the first water outlet 5 of the filter bottle assembly 1 for outputting water filtered by the multi-stage stacked filter device 2.

[0033] like Figure 4 As shown, in order to ensure the sealing between the filter core structures of each stage, an annular groove is provided at the connection of the filter housings 2.5 of each stage, and a sealing ring 2.53 is embedded in the annular groove, so that the adjacent filter housings 2.5 are detachably sealed and connected.

[0034] According to the installation sequence of the first filter element structure 2.1, the second filter element structure 2.2, ... the final filter element structure 2.4, the adjacent filter element structures are divided into upper and lower filter element structures, such as Figure 4As shown, in this embodiment, the detachable connection between adjacent filter housings 2.5 is a snap-on connection, and the connection between the filter housings 2.5 of the upper and lower filter element structures is respectively provided with a screw-in protrusion 2.51 and a screw-in groove 2.52, and the screw-in protrusion 2.51 and the screw-in groove 2.52 are matched to achieve snap connection to achieve detachable connection. Specifically, the screw-in protrusion 2.51 is provided at one end of the filter housing 2.5, and the screw-in groove 2.52 is provided at the other end of the filter housing 2.5; the screw-in protrusion 2.51 has a snap-on portion, and the screw-in groove 2.52 has a space for the screw-in protrusion 2.51 to be rotated and snapped in, and the screw-in groove 2.52 is provided with an abutment portion that cooperates with the snap-on portion, and the screw-in protrusion 2.51 is rotatably snap-on with the screw-in groove 2.52. When rotated to a preset position, the snap-on portion can be tightly abutted with the abutment portion to fix the relative position of the screw-in protrusion 2.51 and the screw-in groove 2.52. When in use, the screw-in protrusion 2.51 of the upper filter element is inserted into the screw-in groove 2.52 of the lower filter element, and when it is rotated to a suitable position, the engaging portion and the abutting portion are in contact and pressed tightly, and the adjacent filter elements are installed. As an alternative embodiment, the detachable sealing connection can also be a threaded connection, and the connection of the filter housing 2.5 of the upper and lower filter element structures is respectively provided with an internal thread and an external thread, and the detachable connection is achieved through the threaded connection of the internal and external threads.

[0035] The outer wall of the filter housing 2.5 is also provided with a protruding piece 2.54, which is in contact with or has a clearance fit with the inner wall of the filter bottle assembly 1 to prevent the filter element structure from shaking during installation and play a guiding and stabilizing role.

[0036] like Figures 1 to 4 As shown, the multi-stage stacked filter device 2 disclosed in the utility model is cylindrical as a whole, and the types and sizes of the filter element structures at each level can be determined according to needs and can be freely configured. In this embodiment, the first filter element of the first-stage filter element structure 2.1 is a coarse filter element, and a PP cotton filter element and a carbon block filter element, or others, can be selected. The first filter element end caps are provided at both ends of the first filter element, and the first filter element end cap close to the end cap 3 and the first filter shell have a second gap to allow water to pass through. The second filter element of the second-stage filter element structure 2.2 is a fine filter element, and an ultrafiltration filter element is selected, which can be welded and fixed in the second filter shell of the second-stage filter element structure 2.2; the second filter element of the second-stage core structure can also use a ceramic filter element, which can be bonded and fixed in the second filter shell of the second-stage filter element structure 2.2; or others. The third filter element of the third-stage filter element structure 2.3 can use a filter element to improve taste, such as a resin filter element; or the third filter element of the third-stage filter element structure 2.3 can also use a mineral filter element; or others. The final filter element of the final filter element structure 2.4 can be a filter element for improving taste, such as a granular carbon filter element, or others.

[0037] The assembly method of each level of filter element structure is as follows Figure 3 , Figure 4As shown, the exposed wall surfaces of the filter housing 2.5 of the upper filter core structure and the filter housing 2.5 of the lower filter core structure are roughly flush, and one of the adjacent filter core structures is recessed at the connection between the two. In the utility model, filter core structures of each level except the final filter core structure 2.4 use filter housings 2.5 of the same size. In actual production, only one set of molds is needed, which saves production costs, improves production efficiency and solves the problem of numerous materials. It should be noted that in this embodiment, except for the final filter core structure 2.4, the first-level filter core structure 2.1, the second-level filter core structure 2.2, and the third-level filter core structure 2.3 all use filter housings 2.5 of the same specifications. The final filter core structure 2.4 is not completely the same because it needs to be adapted to the filter bottle assembly 1. The filter housing 2.5 of the same size can realize free configuration at each level. The user can freely configure the number and type of filter core structures, and can also control the number of filter core structures for coarse filtration and fine filtration, so as to realize double coarse filtration in areas with poor water quality or double fine filtration in areas with good water quality.

[0038] The disassembly and replacement method of the multi-stage stacked filter device 2 disclosed in the utility model is as follows: Figure 2 and Figure 4 As shown, first remove the decorative cover 6 fixed by the movable bayonet, use a wrench to remove the end cover 3 connected with the seal and thread (it can also be sealed by means of snaps, etc.), take out the filter element structure, and the filter element structures of each level can be easily separated by simply rotating a certain angle through the snap connection (it can also be threaded), and the seals are used to double seal between the levels to ensure that there is no leakage or infiltration of raw water between the levels.

[0039] The working process of the multi-stage stacked filtering device 2 disclosed in the utility model is as follows: the direction of water flow is as follows: Figure 1As shown by the arrow, water enters the filter bottle assembly 1 through the first water inlet 4 of the filter bottle assembly 1, reaches the other end of the filter bottle through the first gap between the filter bottle and the outer wall of the filter element structure, enters the first-stage filter element structure 2.1 through the second gap for coarse filtration, then enters the second-stage filter element structure 2.2 for fine filtration, and then passes through the third-stage filter element structure 2.3 for filtration (the third filter element structure 2.3 can be freely configured, replaced according to user needs or according to water quality. One more level of coarse filtration or fine filtration structure is added), and finally the taste is improved through the final filter element structure 2.4, and flows out through the first water outlet 5 set on the same side of the filter bottle assembly 1. It should be noted that the first-stage filter element structure and the final filter element structure are necessary, and other filter element structures can be configured according to specific needs. The number of intermediate filter element structures and the type of filter material can be configured according to needs. Except for the final filter element structure, other filter element structures can be freely replaced through the filter shell 2.5 of the same specification, and multiple components can be added, and molds can also be shared. When the filter element expires, the corresponding filter element structure can be disassembled for replacement, and other structures can continue to be used to reduce the cost of the filter element. When the fine filter element uses a removable and cleanable filter material and the filter element is clogged, the corresponding filter element can be disassembled for cleaning, and the filtration performance can be restored by installing it after cleaning.

[0040] The multi-stage filter element structure of the utility model is arranged in a stacked manner, with a compact structure and a small size. If the filter element in the filter element structure is washable, the filter element structure can be disassembled and cleaned to restore performance after the filter element is blocked. The filter element structures at each level are easy to disassemble. After the life of the filter element expires, the corresponding filter element can be disassembled and replaced, and other filter element structures can continue to be used, thereby reducing costs. At the same time, some filter element structures can freely configure the number and type of filter element structures through the filter housing of the same specification, such as increasing, reducing, and replacing the filter element structure.

[0041] The utility model also discloses a water purifier, comprising the above-mentioned multi-stage filter element structure and a shell, wherein a multi-stage stacked filtering device is installed in the shell.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-stage stacked filtering device, characterized in that: The invention comprises a filter bottle assembly (1) and a multi-stage stacked filter core structure (2), wherein the filter bottle assembly (1) has an inner cavity for accommodating the multi-stage stacked filter core structure (2), one end of the inner cavity is open, and the opening is detachably connected to the end cover (3); the multi-stage stacked filter core structure (2) comprises a filter housing (2.5) and a filter core (2.6), each stage of the filter core (2.6) is placed in each stage of the filter housing (2.5), and adjacent filter housings (2.5) are detachably connected.

2. The multi-stage stacked filtration device according to claim 1, characterized in that: The detachable connection between the inner cavity and the end cover (3) is a threaded (3.2) connection; the detachable connection between adjacent filter housings (2.5) is a snap connection in which a screw-in protrusion (2.51) cooperates with a screw-in groove (2.52).

3. The multi-stage stacked filtration device according to claim 2, characterized in that: The screw-in protrusion (2.51) is arranged at one end of the filter housing (2.5), and the screw-in groove (2.52) is arranged at the other end of the filter housing (2.5); the screw-in protrusion (2.51) has a clamping portion, the screw-in groove (2.52) has a space for the screw-in protrusion (2.51) to be rotated and clamped, and the screw-in groove (2.52) is provided with an abutment portion that cooperates with the clamping portion, the screw-in protrusion (2.51) and the screw-in groove (2.52) are rotationally clamped, and when the screw-in protrusion (2.51) is rotated to a preset position, the clamping portion can be tightly pressed against the abutment portion to fix the relative position of the screw-in protrusion (2.51) and the screw-in groove (2.52).

4. The multi-stage stacked filtration device according to claim 1, characterized in that: An annular groove is provided at the connection of the filter housing (2.5), and a sealing ring (2.53) is provided in the groove.

5. The multi-stage stacked filtration device according to claim 1, characterized in that: The outer wall surface of the filter housing (2.5) is provided with a protruding piece (2.54).

6. The multi-stage stacked filtration device according to claim 1, characterized in that: The filter bottle assembly (1) further comprises a decorative cover (6), wherein the decorative cover is snap-connected with the end cover (3).

7. The multi-stage stacked filtration device according to any one of claims 1 to 6, characterized in that: The filter bottle assembly (1) is provided with a first water inlet (4) and a first water outlet (5) on the same side, and a first gap for water to pass is provided between the inner wall surface of the filter bottle assembly (1) and the outer wall surface of the multi-stage stacked filter element structure (2).

8. The multi-stage stacked filtration device according to claim 7, characterized in that: The multi-stage stacked filter element structure (2) comprises a first-stage filter element structure (2.1) and a final-stage filter element structure (2.4) arranged along the axial direction of the filter bottle assembly (1); the first-stage filter element structure (2.1) comprises a first filter housing and a first filter element; the first filter element and the first filter housing have a second gap; the first water inlet enters the first filter element through the first gap and the second gap; the final-stage filter element structure (2.4) is provided with a second water outlet; the first water outlet (5) is connected to the second water outlet.

9. The multi-stage stacked filtration device according to claim 8, characterized in that: A plurality of intermediate filter core structures are provided between the first-stage filter core structure (2.1) and the final-stage filter core structure (2.4).

10. A water purifier, characterized in that: It comprises the multi-stage stacked filtering device according to any one of claims 1 to 9, and further comprises a housing in which the multi-stage stacked filtering device is installed.

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