CN109731388B

CN109731388B - Filter element assembly and water purification equipment

Info

Publication number: CN109731388B
Application number: CN201910125794.7A
Authority: CN
Inventors: 刘社军; 刘正
Original assignee: Foshan Xinyao Environmental Protection Technology Co Ltd
Current assignee: Foshan Xinyao Environmental Protection Technology Co Ltd
Priority date: 2019-02-20
Filing date: 2019-02-20
Publication date: 2024-01-30
Anticipated expiration: 2039-02-20
Also published as: CN109731388A

Abstract

The invention provides a novel filter element assembly, which comprises a filter element, a filter element shell, a filter seat and a limiting water stop mechanism, wherein the bottom end of the filter seat is provided with a first raw water inlet joint and a plurality of first water outlet joints; the periphery of filter core casing lower extreme is provided with a plurality of positions, and the circumference of the upper end of filter seat is provided with a plurality of hole sites that correspond with a plurality of positions, and a plurality of hole sites are all demountable installation have the knot position piece that is used for with the position lock, and the periphery of the upper end of filter seat is provided with the first elastic component that is used for fastening a plurality of knot position pieces. The invention also provides water purifying equipment, which comprises the novel filter element component. The invention has the advantages of good water stopping effect of the filter element and the filter seat and convenient installation and disassembly of the filter element and the filter seat.

Description

Filter element assembly and water purification equipment

Technical Field

The invention relates to water treatment equipment, in particular to a filter element assembly and water purification equipment.

Background

The water purifying device can filter raw water, and can remove solid particles, bacteria and harmful chemical components in the water. The current connection mode between the filter element and the filter seat in the clamping filter element is that the limiting and the restraint in the vertical direction of the filter element are realized by the cooperation of the clamping characteristic of the filter element and the clamping characteristic on the base during the installation through the rotation of the filter element; while requiring a large degree of rotation to ensure that the snap-fit is in place. At present, the existing filter element and filter seat can leak water or seep water under the condition that the rotation is not in place or in the rotation process, so that certain influence is caused on the experience of consumers;

at present, when the filter element and the filter seat are installed and disassembled, a user needs to rotate the filter element and the filter seat by a large angle to ensure clamping and positioning, so that the operation difficulty of the consumer is increased.

Disclosure of Invention

Based on the above, the invention aims to provide a filter element assembly and a water purifying device, which are used for solving the problems that water leakage or water seepage can occur under the condition that the filter element and the filter seat are not rotated in place or in the rotating process in the prior art, and the filter element and the filter seat are inconvenient to install and detach.

The technical scheme of the invention is as follows: the filter element assembly comprises a filter element, a filter element shell, a filter seat and a limiting water stop mechanism, wherein the filter element is arranged in the filter element shell, a rotating device is rotationally connected in the filter seat, a raw water inlet and a plurality of water outlets are arranged at the bottom end of the filter seat, a first raw water inlet connector and a plurality of first water outlet connectors are arranged at the bottom end of the filter seat, a second raw water inlet connector and a plurality of second water outlet connectors are arranged at the filter element shell, two ends of the first raw water inlet connector are respectively communicated with the raw water inlet and the second raw water inlet connector, two ends of each first water outlet connector are respectively communicated with the corresponding water outlet and the corresponding second water outlet connector, and the limiting water stop mechanism can move relative to the first raw water inlet connector or the second raw water inlet connector or the first water outlet connector or the second water outlet connector so that the limiting water stop mechanism is in a conducting state relative to the first raw water inlet connector or the second raw water inlet connector or the first water outlet connector or the second water outlet connector is in a conducting state or a blocking state;

The periphery of filter core casing lower extreme portion is provided with a plurality of trench, the circumference of the upper end of filter base is provided with a plurality of hole sites that correspond with a plurality of the trench, a plurality of the hole sites all demountable installation have be used for with the knot position piece of trench lock, the periphery of the upper end of filter base is provided with and is used for fastening a plurality of the first elastic component of knot position piece.

Optionally, the limiting water stop mechanism comprises a connecting shaft, a water blocking piece and a limiting protrusion, wherein the water blocking piece is arranged at the end part of the connecting shaft, and the limiting protrusion is arranged on the connecting shaft;

each connecting shaft is respectively and slidably connected with the first raw water inlet joint and the first water outlet joint, each water retaining piece is respectively positioned at the bottom end of the first raw water inlet joint and the bottom end of the first water outlet joint, and each limiting protrusion is respectively positioned below the first raw water inlet joint and below the first water outlet joint;

each connecting shaft is respectively connected with the second raw water inlet connector and the second water outlet connector in a sliding mode, each water retaining piece is respectively located at the top end of the second raw water inlet connector and the top end of the second water outlet connector, and each limiting protrusion is respectively located above the second raw water inlet connector and the second water outlet connector.

Optionally, the filter seat is provided with a raw water inlet, a pure water outlet and a concentrated water outlet, the rotating device is provided with a first pure water outlet connector and a first concentrated water outlet connector, the filter element shell is provided with a second pure water outlet connector and a second concentrated water outlet connector, the first pure water outlet connector is positioned between the first raw water inlet connector and the first concentrated water outlet connector, and the second pure water outlet connector is positioned between the second raw water inlet connector and the second concentrated water outlet connector;

the raw water inlet, the first raw water inlet connector and the second raw water inlet connector are communicated, the pure water outlet, the first pure water outlet connector and the second pure water outlet connector are communicated, and the concentrated water outlet, the first concentrated water outlet connector and the second concentrated water outlet connector are communicated.

Optionally, the filter base includes the base and with the base can dismantle the fender that encloses that is connected, the base is located enclose the top that keeps off, the filter core casing with enclose and keep off and can dismantle the connection, the hole site set up in enclose the week side that keeps off, raw water inlet, pure water delivery port and concentrated water delivery port are located the base.

Optionally, the rotating device is coaxially and rotatably connected with the base.

Optionally, the inner wall of enclosing the fender is provided with the spacing groove along vertical direction, the bottom of filter core casing be provided with along vertical direction with the spacing muscle of spacing groove joint.

Optionally, the filter base is provided with an elastic reset member for rotationally resetting the rotating device, and the elastic reset member comprises a plurality of positioning parts extending from the periphery of the rotating device, a plurality of fixing parts corresponding to the positioning parts in a dislocation manner and extending from the periphery of the base, and a second elastic piece connecting a plurality of adjacent positioning parts and the fixing parts;

the base is provided with a slot hole for the rotation of the positioning part.

Optionally, the rotating device is provided with a first mounting hole allowing the second raw water inlet connector to be inserted and a second mounting hole located below the first mounting hole, the first raw water inlet connector is inserted in the second mounting hole, the first raw water inlet connector comprises a first mounting frame and a first top piece, the connecting shaft is inserted in the middle of the first mounting frame and the middle of the first top piece, the first mounting frame is provided with a plurality of water channels, the lower part of the first top piece is inserted in the water channels of the first mounting frame, the water retaining piece is located below the first mounting frame, and the limiting protrusion is located above the first mounting frame;

The rotating device is provided with a third mounting hole allowing a second pure water outlet connector to be inserted and a fourth mounting hole positioned below the third mounting hole, the first pure water outlet connector is inserted into the fourth mounting hole, the first pure water outlet connector comprises a second mounting frame and a first mounting cylinder, the connecting shaft is inserted into the middle of the second mounting frame and the middle of the first mounting cylinder, the second mounting frame is provided with a plurality of water channels, the water retaining sheet is positioned below the second mounting frame, and the limiting protrusion is positioned above the second mounting frame;

the rotating device is provided with a fifth mounting hole allowing the second concentrated water outlet connector to be inserted and a sixth mounting hole located below the fifth mounting hole, the first concentrated water outlet connector is inserted in the fifth mounting hole, the first concentrated water outlet connector comprises a third mounting frame and a second mounting cylinder, the connecting shaft is inserted in the middle of the third mounting frame and the middle of the second mounting cylinder, the third mounting frame is provided with a plurality of water channels, the water retaining sheet is located below the third mounting frame, and the limiting protrusion is located above the third mounting frame.

Optionally, the filter element housing is provided with a seventh mounting hole, the second raw water inlet connector is inserted into the seventh mounting hole, the second raw water inlet connector comprises a first water sealing piece and a fourth mounting frame, the fourth mounting frame is arranged on the upper portion of the first water sealing piece, the connecting shaft is inserted into the first water sealing piece and the fourth mounting frame, the fourth mounting frame is provided with a plurality of water channels, the water retaining sheet is positioned above the fourth mounting frame, and the limiting protrusion is positioned below the fourth mounting frame;

the filter element shell is provided with an eighth mounting hole, the second pure water outlet connector is inserted into the eighth mounting hole, the second pure water outlet connector comprises a second water sealing piece, a fifth mounting frame and a second top piece, the fifth mounting frame is arranged on the upper portion of the second water sealing piece, the connecting shaft is inserted into the second water sealing piece and the fifth mounting frame, the fifth mounting frame is provided with a plurality of water channels, the water retaining sheet is positioned above the fifth mounting frame, the limiting protrusion is positioned below the fifth mounting frame, the second top piece is slidably connected in the fifth mounting frame, and the bottom of the second water sealing piece is provided with a first limiting device for preventing the second top piece from being separated;

The filter element shell is provided with a ninth mounting hole, the second concentrated water outlet connector is inserted into the ninth mounting hole, the second concentrated water outlet connector comprises a third water sealing piece, a sixth mounting frame and a current limiting assembly, the current limiting assembly is slidably connected into the sixth mounting frame, the sixth mounting frame is arranged on the upper portion of the third water sealing piece, the connecting shaft is inserted into the third water sealing piece and the sixth mounting frame, the sixth mounting frame is provided with a plurality of water channels, the water blocking piece is positioned above the sixth mounting frame, and the limiting protrusion is positioned below the sixth mounting frame;

the flow limiting assembly comprises a fourth connecting cylinder and a fifth connecting cylinder, wherein the fourth connecting cylinder and the fifth connecting cylinder are of an integrated structure, two ends of the fifth connecting cylinder are open ends, one end, far away from the fifth connecting cylinder, of the fourth connecting cylinder is an open end, the other end of the fourth connecting cylinder is a closed end, a through hole is formed in the middle of the closed end of the fourth connecting cylinder, and the diameter of the through hole is smaller than that of the fourth connecting cylinder;

a third elastic piece is connected between the inner cavity of the flow limiting assembly and the bottom of the sixth installation frame, and a second limiting device for preventing the flow limiting assembly from being separated is arranged at the bottom of the third water sealing piece.

In order to achieve the same purpose, the invention also provides water purifying equipment, which comprises the filter element assembly.

The embodiment of the invention has the following beneficial effects:

according to the filter element assembly, after the filter element shell is separated from the filter seat, the limiting water stop mechanism moves towards the inner wall of the rotating device under the pushing of tap water, and when the limiting water stop mechanism is in a contact state with the inner wall of the rotating device, the first raw water inlet joint is in a cut-off state; likewise, the concentrated water and the pure water filtered by the filter element flow downwards, the concentrated water and the pure water drive the limiting water stop mechanism to move towards the inner wall of the filter element shell, and when the limiting water stop mechanism is in a contact state with the inner wall of the filter element shell, the first water outlet connector or the second water outlet connector is in a cut-off state;

when the running water is required to circulate between the filter element and the filter seat, the filter element shell and the filter element are contacted with the filter seat, the filter element shell applies downward acting force to the limiting water stop mechanism inserted into the first raw water inlet joint, and the limiting water stop mechanism is in a water passing state; when pure water or concentrated water is required to circulate between the filter element and the filter seat, the first water outlet joint applies upward acting force to the limiting water stop mechanism inserted in the second water outlet joint, and the limiting water stop mechanism inserted in the second water outlet joint moves upward, so that a gap is formed between the limiting water stop mechanism inserted in the second water outlet joint and the top end of the second water outlet joint, the concentrated water or the pure water sequentially enters the corresponding second water outlet joint and the first water outlet joint from the gap, and the concentrated water or the pure water applies downward action to the limiting water stop mechanism positioned in the first water outlet joint, so that the concentrated water or the pure water flows out from the corresponding water outlet;

When the filter element shell and the filter seat are required to be installed, a groove arranged at the lower end part of the filter element shell is aligned with a hole site at the upper end part of the filter seat, the filter element shell moves towards the inside of the filter seat, after the filter element shell enters the filter seat, the filter element shell contacts with the buckling block, the buckling block is pushed to move outwards by the filter element shell, and a first elastic piece arranged at the periphery of the upper end part of the filter seat moves outwards under the pushing action of the buckling block; when the filter element shell is contacted with the inner wall of the rotating device, the groove position arranged at the upper end part of the filter seat is opposite to the corresponding buckling block, and simultaneously, under the elastic action of the first elastic piece, each buckling block moves into the groove position, so that the buckling block is clamped in the groove position, and the filter element shell and the filter seat are installed;

when the filter element shell and the filter seat are required to be disassembled, the filter element shell is rotated, the buckling block rotates relative to the groove position, the buckling block contacts with the outer wall of the filter element shell, the filter element shell applies an outward movement acting force to the buckling block, and when the filter element shell is completely separated from the filter seat, the buckling block moves towards the inside of the filter seat under the elastic action of the first elastic piece until the buckling block is completely embedded in the groove position, so that the filter element shell and the filter seat are disassembled;

The water purifying equipment provided by the invention comprises the filter element assembly, so that the water purifying equipment provided by the invention can realize a good water stopping function of the filter element and the filter seat in the rotating process, is convenient to mount and dismount the filter element and the filter seat, and further has certain popularization.

Drawings

FIG. 1 is a schematic illustration of one of the construction of the cartridge assembly of the present invention.

FIG. 2 is a second schematic illustration of the filter element assembly of the present invention.

Fig. 3 is a schematic structural view of the button block of the present invention.

Fig. 4 is a top view of the filter base and turning device of the present invention.

Fig. 5 is a cross-sectional view of fig. 4 in the direction A-A of the present invention.

Fig. 6 is a schematic structural view of the first raw water inlet joint at a of fig. 5 according to the present invention.

FIG. 7 is a schematic view showing the structure of the first purified water outlet joint at B of FIG. 5 according to the present invention.

Fig. 8 is a schematic structural view of the first concentrate water outlet fitting of fig. 5 at C according to the present invention.

Fig. 9 is a cross-sectional view of the cartridge housing and cartridge of the present invention.

Fig. 10 is a schematic view showing the structure of the second raw water inlet joint of fig. 9 at D according to the present invention.

FIG. 11 is a schematic view showing the construction of the second pure water outlet fitting of FIG. 9 at E according to the present invention.

Fig. 12 is a schematic view of the structure of the second concentrate water outlet fitting of fig. 9 at F of the present invention.

Reference numerals illustrate:

1. a filter element; 2. a cartridge housing; 3. a filter base; 31. a base; 32. a surrounding baffle; 4. a limiting water stop mechanism; 41. a connecting shaft; 42. a water blocking piece; 43. a limit protrusion; 5. a raw water inlet; 6. a pure water outlet; 7. a concentrated water outlet; 8. a first raw water inlet joint; 81. a first mounting frame; 82. a first top piece; 821. a first connecting cylinder; 822. a first connection post; 9. a second raw water inlet joint; 91. a first water seal; 92. a fourth mounting bracket; 10. a first purified water outlet fitting; 101. a second mounting frame; 102. a first mounting cylinder; 11. a second purified water outlet fitting; 111. a second water seal; 112. a fifth mounting bracket; 113. a second top piece; 1131. a second connecting cylinder; 1132. a third connecting cylinder; 1133. a second connection post; 12. a first concentrate water outlet fitting; 121. a third mounting frame; 122. a second mounting cylinder; 13. a second concentrate water outlet fitting; 131. a third water seal; 132. a sixth mounting bracket; 133. a flow restricting assembly; 1331. a fourth connecting cylinder; 1332. a fifth connecting cylinder; 1333. a through-flow hole; 14. a first mounting hole; 15. a second mounting hole; 16. a third mounting hole; 17. a fourth mounting hole; 18. a fifth mounting hole; 19. a sixth mounting hole; 20. a seventh mounting hole; 21. an eighth mounting hole; 22. a ninth mounting hole; 23. a tenth mounting hole; 24. an eleventh mounting hole; 25. a twelfth mounting hole; 26. a rotating device; 27. a first limiting device; 28. a second limiting device; 29. a first ceramic sheet; 210. a second ceramic sheet; 211. a third ceramic sheet; 212. a fourth ceramic sheet; 213. a slot; 214. hole sites; 215. a buckling block; 2151. an assembling portion; 2152. a fitting portion; 216. a first elastic member; 217. a limit groove; 218. a limit rib; 219. an elastic return member; 2191. a positioning part; 2192. a fixing part; 2193. a second elastic member; 220. and a third elastic member.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

As shown in fig. 1 to 12, the filter element assembly provided by the embodiment of the invention comprises a filter element 1, a filter element housing 2, a filter seat 3 and a limiting water stop mechanism 4, wherein the filter element 1 is arranged in the filter element housing 2, a rotating device 26 is rotationally connected in the filter seat 3, a raw water inlet 5 and a plurality of water outlets are arranged at the bottom end of the filter seat 3, a first raw water inlet joint 8 and a plurality of first water outlet joints are arranged at the bottom end of the filter seat 3, a second raw water inlet joint 9 and a plurality of second water outlet joints are arranged in the filter element housing 2, two ends of the first raw water inlet joint 8 are respectively communicated with the raw water inlet 5 and the second raw water inlet joint 9, two ends of each first water outlet joint are respectively communicated with a corresponding water outlet and a second water outlet joint, and the limiting water stop mechanism 4 can move relative to the first raw water inlet joint 8 or the second raw water inlet joint 9 or the first water outlet joint or the second water outlet joint so that the limiting water stop mechanism 4 is in a conducting state or a blocking state relative to the first raw water inlet joint 8 or the second raw water outlet joint 9 or the first water outlet joint or the second water outlet joint;

The periphery of the lower end part of the filter element shell 2 is provided with a plurality of groove positions 213, the periphery of the upper end part of the filter seat 3 is provided with a plurality of hole positions 214 corresponding to the plurality of groove positions 213, and the plurality of hole positions 214 are detachably provided with buckling blocks 215 which are used for buckling with the groove positions 213; the outer circumference of the upper end portion of the filter base 3 is provided with a first elastic member 216 for fastening a plurality of fastening blocks 215.

According to the filter element assembly, after the filter element shell 2 is separated from the filter seat 3, the limiting water stop mechanism 4 moves towards the inner wall of the rotating device 26 under the pushing of tap water, and when the limiting water stop mechanism 4 is in a contact state with the inner wall of the rotating device 26, the first raw water inlet joint 8 is in a cut-off state; likewise, the concentrated water and the pure water filtered by the filter element 1 flow downwards, the concentrated water and the pure water drive the limiting water stop mechanism 4 to move towards the inner wall of the filter element shell 2, and when the limiting water stop mechanism 4 is in a contact state with the inner wall of the filter element shell 2, the first water outlet connector or the second water outlet connector is in a cut-off state;

when the running water needs to circulate between the filter element 1 and the filter seat 3, the filter element shell 2 and the filter element 1 are in contact with the filter seat 3, the filter element shell 2 applies downward acting force to the limiting water stop mechanism 4 inserted into the first raw water inlet joint 8, and the limiting water stop mechanism 4 is in a water-through state; when pure water or concentrated water needs to circulate between the filter element 1 and the filter seat 3, the first water outlet joint applies upward acting force to the limiting water stop mechanism 4 inserted in the second water outlet joint, and the limiting water stop mechanism 4 inserted in the second water outlet joint moves upward, so that a gap is formed between the limiting water stop mechanism 4 inserted in the second water outlet joint and the top end of the second water outlet joint, the concentrated water or the pure water sequentially enters the corresponding second water outlet joint and the first water outlet joint from the gap, and the concentrated water or the pure water applies downward action to the limiting water stop mechanism 4 positioned in the first water outlet joint, so that the concentrated water or the pure water flows out from the corresponding water outlet;

When the filter element shell 2 and the filter seat 3 are required to be installed, a groove 213 arranged at the lower end part of the filter element shell 2 is aligned with a hole 214 at the upper end part of the filter seat 3, the filter element shell 2 moves towards the inside of the filter seat 3, after the filter element shell 2 enters the filter seat 3, the filter element shell 2 contacts with a buckling block 215, the buckling block 215 is pushed to move outwards by the filter element shell 2, and a first elastic piece 216 arranged at the periphery of the upper end part of the filter seat 3 moves outwards under the pushing action of the buckling block 215; when the filter element shell 2 is contacted with the inner wall of the rotating device 26, the groove 213 arranged at the upper end part of the filter seat 3 is opposite to the corresponding buckling blocks 215, and simultaneously, under the elastic action of the first elastic piece 216, each buckling block 215 moves into the groove 213, so that the buckling blocks 215 are clamped in the groove 213, and the filter element shell 2 and the filter seat 3 are mounted;

when the filter element housing 2 and the filter seat 3 need to be disassembled, the filter element housing 2 is rotated, the buckling block 215 rotates relative to the groove 213, the buckling block 215 contacts with the outer wall of the filter element housing 2, the filter element housing 2 applies an outward movement acting force to the buckling block 215, and when the filter element housing 2 is completely separated from the filter seat 3, the buckling block 215 moves towards the inside of the filter seat 3 under the elastic action of the first elastic piece 216 until the buckling block 215 is completely embedded in the groove 213, so that the filter element housing 2 and the filter seat 3 are disassembled;

Therefore, the filter element assembly has the characteristics of good water stopping function and convenience in installation and disassembly, thereby being convenient for popularization.

In this embodiment, as shown in fig. 1 to 12, in order to improve the water stopping effect of the limiting water stopping mechanism 4 on each water inlet joint and the water stopping effect of each water outlet joint, the limiting water stopping mechanism 4 includes a connecting shaft 41, a water stopping sheet 42 and a limiting protrusion 43, the water stopping sheet 42 is disposed at the end of the connecting shaft 41, and the limiting protrusion 43 is disposed at the connecting shaft 41;

each connecting shaft 41 is respectively and slidably connected to the first raw water inlet joint 8 and the first water outlet joint, each water retaining piece 42 is respectively positioned at the bottom end of the first raw water inlet joint 8 and the bottom end of the first water outlet joint, and each limiting protrusion 43 is respectively positioned below the first raw water inlet joint 8 and below the first water outlet joint;

each connecting shaft 41 is respectively connected to the second raw water inlet joint 9 and the second water outlet joint in a sliding manner, each water retaining piece 42 is respectively positioned at the top end of the second raw water inlet joint 9 and the top end of the second water outlet joint, and each limiting protrusion 43 is respectively positioned above the second raw water inlet joint 9 and the second water outlet joint. Specifically, after the filter element housing 2 and the filter element 1 are separated from the filter seat 3, the filter element housing 2 does not apply downward force to the limiting water stop mechanism 4 inserted into the first raw water inlet joint 8, tap water enters the rotating device 26 from the first raw water inlet 5, and the tap water pushes the water blocking piece 42 to move upwards until the water blocking piece 42 moves to be connected with the inner wall of the rotating device 26, so that the tap water cannot enter the water channel of the first raw water inlet joint 8, and water stop of the first raw water inlet joint 8 is realized;

When the filter element 1 is taken out, the first water outlet connector does not apply upward acting force to the limiting water stop mechanism 4 inserted in the second water outlet connector, the limiting water stop mechanism 4 inserted in one water outlet connector moves downwards to the inner wall of the filter element shell 2 under the action of internal pressure, and the limiting water stop mechanism 4 is connected with the upper part of the first water outlet connector, so that water flowing out of the filter element 1 cannot enter a water channel of the first water outlet connector, and water stop of the first water outlet connector is realized;

when the filter element 1 is taken out, the first water outlet connector does not apply upward acting force to the limiting water stop mechanism 4 inserted in the second water outlet connector, the limiting water stop mechanism 4 inserted in the second water outlet connector moves downwards to the inner wall of the filter element shell 2 under the action of internal pressure, and the limiting water stop mechanism 4 inserted in the second water outlet connector is connected with the upper part of the second water outlet connector, so that water flowing out of the filter element 1 cannot enter a water channel of the first water outlet connector, and water stop of the first water outlet connector is realized;

by providing the limiting projections 43, when water can flow through each water inlet joint or water outlet joint, each limiting projection 43 is separated from the lower part of the first raw water inlet joint 8 or the lower part of the first water outlet joint or the upper part of the second raw water inlet joint 9 or the upper part of the second water outlet joint; when water cannot flow through the respective water inlet joint or water outlet joint, each of the limit projections 43 is in contact with the lower side of the first raw water inlet joint 8 or the lower side of the first water outlet joint or the upper side of the second raw water inlet joint 9 or the upper side of the second water outlet joint.

In this embodiment, as shown in fig. 1 to 12, in order to facilitate the inflow of tap water to the filter element 1 and the discharge of concentrated water and pure water from the filter element 1 and the filter base 3, the filter base 3 is provided with a raw water inlet 5, a pure water outlet 6 and a concentrated water outlet 7, the rotating device 26 is provided with a first pure water outlet joint 10 and a first concentrated water outlet joint 12, the filter element housing 2 is provided with a second pure water outlet joint 11 and a second concentrated water outlet joint 13, the first pure water outlet joint 10 is located between the first raw water inlet joint 8 and the first concentrated water outlet joint 12, and the second pure water outlet joint 11 is located between the second raw water inlet joint 9 and the second concentrated water outlet joint 13;

the raw water inlet 5, the first raw water inlet joint 8 and the second raw water inlet joint 9 are communicated, the pure water outlet 6, the first pure water outlet joint 10 and the second pure water outlet joint 11 are communicated, and the concentrated water outlet 7, the first concentrated water outlet joint 12 and the second concentrated water outlet joint 13 are communicated. Specifically, tap water sequentially enters the filter element 1 through the raw water inlet 5, the first raw water inlet joint 8 and the second raw water inlet joint 9, pure water filtered by the filter element 1 sequentially flows to the pure water outlet 6 through the second pure water outlet joint 11 and the first pure water outlet joint 10, and concentrated water filtered by the filter element 1 sequentially flows to the concentrated water outlet 7 through the second concentrated water outlet joint 13 and the first concentrated water outlet joint 12, so that circulating circulation of tap water, pure water and concentrated water is realized;

The outlet of the central tube of the filter element 1 is connected with the water inlet of the second pure water outlet joint 11, thereby facilitating the discharge of pure water.

In this embodiment, as shown in fig. 1 to 12, in order to make the water stopping effect of the first raw water inlet joint 8 better, the rotating device 26 is provided with a first mounting hole 14 allowing the second raw water inlet joint 9 to be inserted and a second mounting hole 15 located below the first mounting hole 14, the first raw water inlet joint 8 is inserted in the second mounting hole 15, the first raw water inlet joint 8 includes a first mounting frame 81 and a first top member 82, the connecting shaft 41 is inserted in the middle of the first mounting frame 81 and the middle of the first top member 82, the first mounting frame 81 is provided with a plurality of water channels, the lower part of the first top member 82 is inserted in the water channels of the first mounting frame 81, the water blocking piece 42 is located below the first mounting frame 81, and the limiting boss 43 is located above the first mounting frame 81. Specifically, the rotation device 26 is provided with a tenth mounting hole 23, the tenth mounting hole 23 is located right below the second mounting hole 15, the water blocking plate 42 is arranged in the tenth mounting hole 23, the first mounting frame 81 is provided with four water channels, and the diameter of the water blocking plate 42 is larger than that of the second mounting hole 15;

the first top piece 82 comprises a first connecting cylinder 821 and four first connecting columns 822, the bottom of the first connecting cylinder 821 is located above the first installation frame 81, each first connecting column 822 is inserted into a water channel corresponding to the first installation frame 81, when the filter element 1 is taken out in a rotating mode, the water retaining plate 42 is tightly attached to the top end of the tenth installation hole 23 under the action of water pressure, the bottom end of the second installation hole 15 is tightly attached to the water retaining plate 42, and therefore tap water cannot enter the second installation hole 15 and the first installation hole 14, and water stop of the filter base 3 is achieved;

The tenth mounting hole 23 is embedded with a first connecting ring, the first connecting ring is fixedly connected with a first ceramic plate 29, the base 31 is embedded with a second connecting ring, the second connecting ring is fixedly connected with a second ceramic plate 210, when the rotating device 26 rotates, the first ceramic plate 29 rotates along with the rotating device 26, and the second ceramic plate 210 and the enclosure 32 keep motionless, so that the first ceramic plate 29 and the second ceramic plate 210 are contacted with each other, and friction between the rotating device 26 and the base 31 is smaller when the rotating device 26 rotates.

In this embodiment, as shown in fig. 1 to 12, in order to make the water stopping effect of the first purified water outlet connector 10 better, the rotating device 26 is provided with a third mounting hole 16 allowing the second purified water outlet connector 11 to be inserted and a fourth mounting hole 17 located below the third mounting hole 16, the first purified water outlet connector 10 is inserted into the fourth mounting hole 17, the first purified water outlet connector 10 includes a second mounting frame 101 and a first mounting cylinder 102, the connecting shaft 41 is inserted into the middle part of the second mounting frame 101 and the middle part of the first mounting cylinder 102, the second mounting frame 101 is provided with a plurality of water channels, the water blocking piece 42 is located below the second mounting frame 101, and the limiting protrusion 43 is located above the second mounting frame 101. Specifically, the rotation device 26 is provided with an eleventh mounting hole 24, the eleventh mounting hole 24 is located right below the fourth mounting hole 17, the water blocking plate 42 is arranged in the eleventh mounting hole 24, the second mounting frame 101 is provided with four water channels, and the diameter of the water blocking plate 42 is larger than that of the fourth mounting hole 17;

The middle part of the rotating device 26 is inserted into the base 31, so that the rotating device 26 can rotate relative to the base 31.

In this embodiment, as shown in fig. 1 to 12, in order to make the water stopping effect of the first concentrated water outlet connector 12 better, the rotating device 26 is provided with a fifth mounting hole 18 allowing the second concentrated water outlet connector to be inserted and a sixth mounting hole 19 located below the fifth mounting hole 18, the first concentrated water outlet connector is inserted into the fifth mounting hole 18, the first concentrated water outlet connector includes a third mounting frame 121 and a second mounting barrel 122, the connecting shaft 41 is inserted into the middle of the third mounting frame 121 and the middle of the second mounting barrel 122, the third mounting frame 121 is provided with a plurality of water channels, the water blocking piece 42 is located below the third mounting frame 121, and the limiting protrusion 43 is located above the third mounting frame 121. Specifically, the rotating device 26 is provided with a twelfth mounting hole 25, the twelfth mounting hole 25 is located right below the sixth mounting hole 19, the water blocking plate 42 is arranged in the twelfth mounting hole 25, the third mounting frame 121 is provided with four water channels, and the diameter of the water blocking plate 42 is larger than that of the sixth mounting hole 19;

the twelfth mounting hole 25 is embedded with a third connecting ring, the third connecting ring is fixedly connected with a third ceramic plate 211, the base 31 is embedded with a fourth connecting ring, the fourth connecting ring is located under the third connecting ring, the fourth connecting ring is fixedly connected with a fourth ceramic plate 212, when the rotating device 26 rotates, the third ceramic plate 211 rotates along with the rotating device 26, the fourth ceramic plate 212 and the enclosure 32 keep motionless, and therefore the third ceramic plate 211 and the fourth ceramic plate 212 are in contact with each other, so that friction between the rotating device 26 and the base 31 is smaller when the rotating device 26 rotates.

In this embodiment, as shown in fig. 1 to 12, in order to make the water stopping effect of the second raw water inlet connector 9 better, the filter core housing 2 is provided with a seventh mounting hole 20, the second raw water inlet connector 9 is inserted into the seventh mounting hole 20, the second raw water inlet connector 9 includes a third mounting cylinder 91 and a fourth mounting frame 92, the fourth mounting frame 92 is provided on the upper portion of the third mounting cylinder 91, the connecting shaft 41 is inserted into the third mounting cylinder 91 and the fourth mounting frame 92, the fourth mounting frame 92 is provided with a plurality of water channels, the water blocking piece 42 is located above the fourth mounting frame 92, and the limiting protrusion 43 is located below the fourth mounting frame 92. Specifically, the fourth mounting frame 92 is provided with four water channels, and in the process of extracting the filter element housing 2, as the flow of tap water to the filter element 1 is smaller and smaller, the connecting shaft 41 gradually moves downwards until the water blocking piece 42 is located right above the third mounting cylinder 91, and as the diameter of the water blocking piece 42 is larger than that of the third mounting cylinder 91, water stop of the second raw water inlet joint 9 is realized.

In this embodiment, as shown in fig. 1 to 12, in order to make the water stopping effect of the second pure water outlet connector 11 better, the filter core housing 2 is provided with an eighth mounting hole 21, the second pure water outlet connector 11 is inserted into the eighth mounting hole 21, the second pure water outlet connector 11 includes a fourth mounting cylinder 111, a fifth mounting frame 112 and a second top member 113, the fifth mounting frame 112 is disposed at the upper portion of the fourth mounting cylinder 111, the connecting shaft 41 is inserted into the fourth mounting cylinder 111 and the fifth mounting frame 112, the fifth mounting frame 112 is provided with a plurality of water channels, the water blocking sheet 42 is disposed above the fifth mounting frame 112, and the limiting protrusion 43 is disposed below the fifth mounting frame 112;

The second top member 113 is slidably connected to the fifth mounting frame 112, and a first limiting device 27 for preventing the second top member 113 from being separated is disposed at the bottom of the fourth mounting cylinder 111. Specifically, the second top member 113 includes a second connection cylinder 1131, a third connection cylinder 1132, and four second connection columns 1133, wherein the top end of the second connection cylinder 1131 is connected with the bottom end of the third connection cylinder 1132, the four second connection columns 1133 are fixed in the third connection cylinder 1132, and the second connection cylinder 1131 and the third connection cylinder 1132 are provided with through holes allowing the connection shaft 41 to pass through, so that the movement of the connection shaft 41 in the eighth mounting hole 21 is facilitated;

the first limiting device 27 is a first limiting ring, the first limiting ring is provided with a first limiting hole, the diameter of the first limiting hole is equal to that of the second connecting cylinder 1131, the diameter of the third connecting cylinder 1132 is larger than that of the second connecting cylinder 1131, when the bottom end of the filter base 3 is inserted into the third mounting hole 16, the first mounting cylinder 102 is inserted into the first limiting ring, the second top piece 113 moves upwards, so that the water retaining sheet 42 can move upwards, and a gap is formed between the water retaining sheet 42 and the top end of the fourth mounting cylinder 111, and pure water can flow to the first pure water outlet connector 10 conveniently;

when the filter cartridge housing 2 is separated from the filter seat 3, the second top member 113 moves downward, and the water blocking piece 42 also moves downward until the water blocking piece 42 is connected with the top end of the fourth installation cylinder 111, so that pure water cannot enter the fourth installation cylinder 111, and water stop of the second pure water outlet joint 11 is further realized.

In this embodiment, as shown in fig. 1 to 12, in order to make the water stopping effect of the second concentrated water outlet 7 better, the filter core housing 2 is provided with a ninth mounting hole 22, the second concentrated water outlet connector 13 is inserted into the ninth mounting hole 22, the second concentrated water outlet connector 13 includes a fifth mounting cylinder 131, a sixth mounting frame 132 and a flow limiting assembly 133, the flow limiting assembly 133 is slidably connected in the sixth mounting frame 132, the sixth mounting frame 132 is disposed at the upper portion of the fifth mounting cylinder 131, the connecting shaft 41 is inserted into the fifth mounting cylinder 131 and the sixth mounting frame 132, the sixth mounting frame 132 is provided with a plurality of water channels, the water blocking piece 42 is disposed above the sixth mounting frame 132, and the limiting protrusion 43 is disposed below the sixth mounting frame 132;

a third elastic member 220 is connected between the inner cavity of the flow limiting assembly 133 and the bottom of the sixth mounting frame 132, and a second limiting device 28 for preventing the flow limiting assembly 133 from being separated is arranged at the bottom of the fifth mounting barrel 131. Specifically, the flow limiting assembly 133 includes a fourth connecting cylinder 1331 and a fifth connecting cylinder 1332, the fourth connecting cylinder 1331 and the fifth connecting cylinder 1332 are of an integrated structure, two ends of the fifth connecting cylinder 1332 are open ends, one end of the fourth connecting cylinder 1331 far away from the fifth connecting cylinder 1332 is an open end, the other end of the fourth connecting cylinder 1331 is a closed end, a through hole 1333 is formed in the middle position of the closed end of the fourth connecting cylinder 1331, and the diameter of the through hole 1333 is smaller than that of the fourth connecting cylinder 1331, so that filtered concentrated water can only flow out from the through hole 1333, further the flow limiting effect is achieved, and certain pressure can be kept inside the filter element 1;

The second limiting device 28 is a second limiting ring, the second limiting ring is provided with a second limiting hole, the diameter of the fourth connecting cylinder 1331 is smaller than that of the second limiting hole, the diameter of the fifth connecting cylinder 1332 is larger than that of the second limiting hole, when the filter element shell 2 is separated from the filter seat 3, under the elastic action of the third elastic piece 220 and the gravity action of the flow limiting assembly 133, the water retaining piece 42 moves downwards along with the flow limiting assembly 133 until the water retaining piece 42 is connected with the top end of the fifth mounting cylinder 131, so that pure water cannot enter the fifth mounting cylinder 131, and water stop of the second raw water outlet connector is realized;

for the circulation of raw water, pure water and concentrated water at filter seat 3 and filter core 1 and the removal of knot position piece 215 for filter seat 3, filter seat 3 includes base 31 and encloses fender 32 with base 31 detachable connection, and base 31 locates the top of enclosing fender 32, and filter core casing 2 is detachable with enclose fender 32 and is connected, and hole site 214 sets up in the week side of enclosing fender 32, and base 31 is located to raw water inlet 5, pure water delivery port 6 and concentrated water delivery port 7. Specifically, the filter element housing 2 is detachably connected with the enclosing shield 32, so that the filter element housing 2 and the filter seat 3 are convenient to assemble and disassemble;

the rotating device 26 is arranged in the inner cavity of the base 31 and the inner cavity of the enclosing block 32, and the rotating device 26 can drive the filter element shell 2 to rotate better relative to the enclosing block 32;

The buckling block 215 is arranged at the hole site 214, so that the buckling block 215 can be better connected with the fence 32.

In this embodiment, as shown in fig. 1 to 12, the rotating device 26 is coaxially and rotatably connected with the base 31, so that the rotating device 26 and the enclosure 32 can rotate relatively.

In this embodiment, as shown in fig. 1 to 12, in order to facilitate the filter element housing 2 to be inserted into the filter seat 3, a limiting groove 217 is provided on the inner wall of the enclosure 32 along the vertical direction, and a limiting rib 218 clamped with the limiting groove 217 is provided on the bottom of the filter element housing 2 along the vertical direction. Specifically, when the filter seat 3 and the filter element housing 2 are required to be mounted, the limiting groove 217 and the limiting rib 218 are aligned, so that a guiding effect is provided for mounting the filter seat 3 and the filter element housing 2, and the mounting efficiency of the filter seat 3 and the filter element housing 2 is improved.

In this embodiment, as shown in fig. 1 to 12, in order to facilitate the installation of the filter element 1, the filter base 3 is provided with an elastic restoring member 219 for rotationally restoring the rotation device 26, and the elastic restoring member 219 includes a plurality of positioning portions 2191 extending from the outer periphery of the rotation device 26, a plurality of fixing portions 2192 extending from the outer periphery of the base 31 and corresponding to the positioning portions 2191 in a staggered manner, and a second elastic member 2193 connecting the plurality of adjacent positioning portions 2191 and the fixing portions 2192;

The base 31 is provided with a slot 213 for rotation of the positioning portion 2191. Specifically, the positioning portion 2191 and the fixing portion 2192 are fixed blocks, and the second elastic member 2193 is a spring, so that when the cartridge housing 2 is taken out, the spring can reset the rotating device 26 and the base 31, thereby facilitating the reinstallation of the cartridge 1.

In this embodiment, as shown in fig. 1 to 12, in order to facilitate the first elastic member 216 being disposed on the outer periphery of the surrounding block 32 and the outer periphery of the buckling block, the surrounding block 32 and the outer periphery of the buckling block are provided with annular grooves which are connected with each other, and the first elastic member 216 is clamped in the grooves. Specifically, when the filter element housing 2 and the filter seat 3 are in a separated state, the first elastic piece 216 is embedded in the groove of the enclosure 32 and the groove of the buckling block, so that one end of the buckling block away from the center of the enclosure 32 is arranged in the hole site 214;

when the filter element housing 2 and the filter seat 3 are in a connection state, the first elastic piece 216 is embedded in the groove of the buckling block, and one side of the buckling block away from the center of the enclosure 32 is separated from the hole site 214.

In this embodiment, as shown in fig. 1 to 12, in order to facilitate the installation and the disassembly of the filter element housing 2 and the filter seat 3, the slot 213 is waist-like, the periphery of the slot 213 is provided with a rounded corner or chamfer, and the rounded corner or chamfer on one side of the slot 213 is greater than that on the other side, the fastening block 215 includes an assembling portion 2151 assembled with the enclosure 32 and an engaging portion 2152 engaged with the slot 213, the engaging portion 2152 is provided with an inclined plane for guiding the filter element 1 during the insertion and removal, and the inclined plane is inclined from the side with the greater rounded corner of the slot 213. Specifically, since the groove 213 is provided with a fillet, the embedded part 2152 forms an inclined plane relative to the filter element 1, and the fitting of the fillet and the inclined plane can facilitate the installation and the disassembly of the filter element housing 2 and the filter seat 3, wherein, when the filter element housing 2 and the filter seat 3 are installed, the fitting of the fillet and the inclined plane can enable the embedded part 2152 to be better embedded in the groove 213;

When the cartridge housing 2 and the filter base 3 are detached, the engagement of the rounded corners and the inclined surfaces enables the fitting portion 2152 to be disengaged from the groove 213 more quickly.

The water purifying equipment provided by the invention comprises the filter element assembly, so that the water purifying equipment provided by the invention can realize a good water stopping function of the filter element 1 and the filter seat 3 in the rotating process, is convenient for mounting and dismounting the filter element 1 and the filter seat 3, and further has certain popularization.

It should be understood that the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the invention.

While the foregoing is directed to the preferred embodiments of the present invention, it should be noted that modifications and variations could be made by those skilled in the art without departing from the principles of the present invention, and such modifications and variations are to be regarded as being within the scope of the invention.

Claims

1. The filter element assembly is characterized by comprising a filter element, a filter element shell, a filter seat and a limiting water stop mechanism, wherein the filter element is arranged in the filter element shell, a rotating device is rotationally connected in the filter seat, a raw water inlet and a plurality of water outlets are arranged at the bottom end of the filter seat, a first raw water inlet connector and a plurality of first water outlet connectors are arranged at the bottom end of the filter seat, a second raw water inlet connector and a plurality of second water outlet connectors are arranged at the filter element shell, two ends of the first raw water inlet connector are respectively communicated with the raw water inlet and the second raw water inlet connector, two ends of each first water outlet connector are respectively communicated with the corresponding water outlet and the corresponding second water outlet connector, and the limiting water stop mechanism can move relative to the first raw water inlet connector or the second water inlet connector or the first water outlet connector or the second water outlet connector so that the limiting water stop mechanism is in a cut-off state relative to the first raw water inlet connector or the second raw water inlet connector or the first water outlet connector or the second water outlet connector or the first water outlet connector is in a cut-off state;

The periphery of the lower end part of the filter element shell is provided with a plurality of slots, the periphery of the upper end part of the filter seat is provided with a plurality of hole sites corresponding to the slots, the holes are detachably provided with buckling blocks for buckling the slots, and the periphery of the upper end part of the filter seat is provided with a first elastic piece for fastening the buckling blocks;

the filter seat comprises a base and a surrounding baffle detachably connected with the base, and the hole site is arranged on the periphery of the surrounding baffle;

the periphery of the surrounding baffle and the buckling block is provided with annular grooves which are connected with each other, and the first elastic piece is clamped in the grooves;

the groove is waist-like, round corners or chamfer angles are arranged on the periphery of the groove, and the round corners or chamfer angles on one side of the groove are larger than those on the other side;

the buckling block comprises an assembling part assembled with the surrounding block and an embedding part embedded with the groove, wherein an inclined plane used for guiding the filter element during embedding and taking out is arranged on the surface of the embedding part relative to the filter element, and the inclined plane is inclined from one side with a large groove fillet;

the limiting water stop mechanism comprises a connecting shaft, a water blocking piece and a limiting protrusion, wherein the water blocking piece is arranged at the end part of the connecting shaft, and the limiting protrusion is arranged on the connecting shaft;

2. The filter cartridge assembly of claim 1, wherein the filter cartridge is provided with a raw water inlet, a pure water outlet and a concentrate water outlet, the rotating means is provided with a first pure water outlet fitting and a first concentrate water outlet fitting, the filter cartridge housing is provided with a second pure water outlet fitting and a second concentrate water outlet fitting, the first pure water outlet fitting is located between the first raw water inlet fitting and the first concentrate water outlet fitting, and the second pure water outlet fitting is located between the second raw water inlet fitting and the second concentrate water outlet fitting;

3. The filter element assembly of claim 2, wherein the base is disposed above the enclosure, the filter element housing is detachably connected to the enclosure, and the raw water inlet, the purified water outlet, and the concentrate water outlet are disposed in the base.

4. A filter cartridge assembly as recited in claim 3, wherein said rotating means is rotatably connected coaxially with said base.

5. The filter element assembly according to claim 3, wherein the inner wall of the enclosure is provided with a limit groove along a vertical direction, and the bottom of the filter element housing is provided with a limit rib clamped with the limit groove along the vertical direction.

6. A filter cartridge assembly as recited in claim 3, wherein the filter base is provided with an elastic return member for rotationally returning the rotating means, the elastic return member including a plurality of positioning portions extending from an outer periphery of the rotating means, a plurality of fixing portions extending from an outer periphery of the base in offset correspondence with the positioning portions, and a second elastic member connecting a plurality of adjacent positioning portions and the fixing portions;

The base is provided with a slot hole for the rotation of the positioning part.

7. The filter element assembly according to claim 2, wherein the rotating device is provided with a first mounting hole allowing the insertion of the second raw water inlet connector and a second mounting hole positioned below the first mounting hole, the first raw water inlet connector is inserted into the second mounting hole, the first raw water inlet connector comprises a first mounting frame and a first top piece, the connecting shaft is inserted into the middle of the first mounting frame and the middle of the first top piece, the first mounting frame is provided with a plurality of water channels, the lower part of the first top piece is inserted into the water channels of the first mounting frame, the water blocking piece is positioned below the first mounting frame, and the limiting protrusion is positioned above the first mounting frame;

8. The filter element assembly according to claim 2, wherein the filter element housing is provided with a seventh mounting hole, the second raw water inlet connector is inserted into the seventh mounting hole, the second raw water inlet connector comprises a first water sealing member and a fourth mounting frame, the fourth mounting frame is arranged on the upper portion of the first water sealing member, the connecting shaft is inserted into the first water sealing member and the fourth mounting frame, the fourth mounting frame is provided with a plurality of water channels, the water blocking piece is arranged above the fourth mounting frame, and the limiting protrusion is arranged below the fourth mounting frame;

9. A water purification apparatus comprising a cartridge assembly according to any one of claims 1 to 8.