Filter element of multi-stage filter

Abstract

The utility model discloses a multi-level filter element which comprises a mounting frame, three filter element inserting opening supports are arranged on one side of the mounting frame, and a composite filter element, an RO (reverse osmosis) membrane filter element and a rear filter element are respectively arranged in the three filter element inserting opening supports in a clamping manner. Through the arrangement of the three filter element inserting opening supports, the three filter elements can be preliminarily limited, then the three filter element fixing covers are turned over clockwise, limiting grooves and elastic clamping pieces on the surfaces of the three filter elements are clamped with the three filter element fixing covers correspondingly, the three filter element fixing covers are firmly fixed to the tops of the three filter elements, and the filter element fixing covers are firmly fixed to the tops of the three filter elements; the three filter elements are further limited and fixed, the structural strength of the filter element insertion openings can be improved through the arrangement of the seven reinforcing pieces and the seven reinforcing blocks, vibration generated when a machine works can be effectively relieved, and then water seepage caused by breakage of the filter element insertion openings can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of filter elements, specifically a multi-stage filter element. Background Technology

[0002] Filter cartridges are an important component of filters, their main function being to filter out impurities from fluids, protecting the normal operation of equipment or providing clean fluid. Filter cartridges use their tiny pores to block impurities while allowing clean fluid to pass through. Filter cartridges are widely used in oil filtration, water filtration, and air filtration. However, existing filter cartridges are prone to leakage due to vibrations generated during machine operation, which can cause the cartridge inlet to break.

[0003] To address the aforementioned issues, a multi-stage filter element is proposed here. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage filter element to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage filter element, including a mounting frame. Three filter element insertion brackets are provided on one side of the mounting frame. A composite filter element, an RO membrane filter element, and a post-filter element are respectively fitted inside the three filter element insertion brackets. Rotating shafts are fixedly provided on both sides of the inner wall of each of the three filter element insertion brackets. Filter element fixing covers are rotatably disposed between two rotating shafts on the same side. The three filter element fixing covers are respectively corresponding to the composite filter element, the RO membrane filter element, and the post-filter element. Two first insertion holes, three second insertion holes, and two third insertion holes are respectively provided on the inner side of each of the three filter element insertion brackets. The arrangement of the three filter element insertion brackets... This design facilitates initial positioning of the three filter elements. Then, by rotating the three filter element fixing covers clockwise, the limiting grooves and elastic clips on the surfaces of the three filter elements engage with the fixing covers, firmly securing them to the top of the three filter elements. This further limits and fixes the three filter elements. The inclusion of seven reinforcing members and blocks enhances the structural strength of the filter element insertion points, effectively reducing vibrations during machine operation and preventing filter element breakage and leakage. The insertion pipe limiting steps prevent the water inlet pipe from being inserted too deeply into the water circuit board, which could obstruct water flow, cause pump overheating, and shorten the pump's lifespan.

[0006] Preferably, limiting grooves are provided on the top of the outer side of the composite filter element, the top of the outer side of the RO membrane filter element, and the top of the outer side of the post-filter element. The three limiting grooves are respectively provided with corresponding filter element fixing covers. The setting of the three limiting grooves makes it easy to lock the three filter element fixing covers on the top of the three filter elements.

[0007] Preferably, elastic clips are fixedly provided on the top of both sides of the composite filter element, the top of both sides of the RO membrane filter element, and the top of both sides of the post-filter element. The six elastic clips are respectively provided with three filter element fixing covers. The provision of six elastic clips makes it easy to lock the three filter element fixing covers on the top of the three filter elements.

[0008] Preferably, the top of the inner side of the post-filter element is fixedly provided with two third insertion ports, the top of the inner side of the RO membrane filter element is fixedly provided with three second insertion ports, and the top of the inner side of the composite filter element is fixedly provided with two first insertion ports. The two first insertion ports are respectively configured to correspond to the two first insertion holes, the three second insertion ports are respectively configured to correspond to the three second insertion holes, and the two third insertion ports are respectively configured to correspond to the two third insertion holes. The matching configuration of the two first insertion ports with the two first insertion holes, the matching configuration of the three second insertion ports with the three second insertion holes, and the matching configuration of the two third insertion ports with the two third insertion holes facilitates the installation of the three filter elements.

[0009] Preferably, reinforcing members are fixedly provided at the connection points of the composite filter element and the two first inlets, the connection points of the RO membrane filter element and the three second inlets, and the connection points of the post-filter element and the two third inlets. A reinforcing block is fixedly provided in the middle of each of the seven reinforcing members. The arrangement of the seven reinforcing members and the seven reinforcing blocks can improve the structural strength of the filter element inlets and prevent them from breaking.

[0010] Preferably, each of the three filter element fixing covers has a through hole in the middle of its top end, and each of the three filter element fixing covers has an auxiliary protrusion fixedly provided on its outer side. The auxiliary protrusions facilitate the opening and closing of the filter element fixing covers.

[0011] Preferably, the top of the mounting bracket is provided with a pipe insertion limiting step. The pipe insertion limiting step can prevent the water inlet pipe from being inserted too deeply into the water circuit board, which would cause the water circuit board to have poor water intake, resulting in the water pump overheating and shortening the service life of the water pump.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The three filter cartridge holders facilitate initial positioning of the three filter cartridges. By rotating the three filter cartridge fixing covers clockwise, the limiting grooves and elastic clips on the surfaces of the three filter cartridges engage with the fixing covers, firmly securing them to the top of the three filter cartridges. This further limits and secures the filter cartridges. The seven reinforcing members and blocks enhance the structural strength of the filter cartridge inlets, effectively reducing vibrations during machine operation and preventing filter cartridge breakage and leakage. The stepped insertion design prevents the water inlet pipe from being inserted too deeply into the water circuit board, which could obstruct water flow, cause pump overheating, and shorten the pump's lifespan. Attached Figure Description

[0014] Figure 1 This is the first perspective view of the present invention;

[0015] Figure 2 This is a second perspective view of the present invention;

[0016] Figure 3 This is a structural diagram of the filter element of this utility model;

[0017] Figure 4 This is a structural diagram of the mounting bracket of this utility model.

[0018] In the diagram: 1. Mounting bracket; 2. Filter cartridge inlet bracket; 3. Filter cartridge fixing cover; 4. Rotary shaft; 5. Auxiliary protrusion; 6. Composite filter cartridge; 7. RO membrane filter cartridge; 8. Post-filter cartridge; 9. First inlet; 10. Reinforcing member; 11. Reinforcing block; 12. Second inlet; 13. Third inlet; 14. Elastic clip; 15. Third insertion hole; 16. Second insertion hole; 17. First insertion hole; 18. Through hole; 19. Insertion tube limiting step; 20. Limiting groove. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figure 1-4 This utility model provides a multi-stage filter element, including a mounting bracket 1. Three filter element insertion brackets 2 are provided on one side of the mounting bracket 1. A composite filter element 6, an RO membrane filter element 7, and a post-filter element 8 are respectively fitted inside the three filter element insertion brackets 2. Rotating shafts 4 are fixedly provided on both sides of the inner wall of the three filter element insertion brackets 2. Filter element fixing covers 3 are rotatably provided between the two rotating shafts 4 on the same side. The three filter element fixing covers 3 are respectively provided with the composite filter element 6, the RO membrane filter element 7, and the post-filter element 8. Two first insertion holes 17, three second insertion holes 16, and two third insertion holes 15 are respectively provided on the inner side of the three filter element insertion brackets 2.

[0021] Limiting grooves 20 are provided on the top of the outer side of the composite filter element 6, the top of the outer side of the RO membrane filter element 7, and the top of the outer side of the post-filter element 8. The three limiting grooves 20 are respectively set to correspond to the three filter element fixing covers 3. Elastic clips 14 are fixedly provided on the top of both sides of the composite filter element 6, the top of both sides of the RO membrane filter element 7, and the top of both sides of the post-filter element 8. The six elastic clips 14 are respectively set to correspond to the three filter element fixing covers 3. Two third insertion ports 13 are fixedly provided on the top of the inner side of the post-filter element 8. Three second insertion ports 12 are fixedly provided on the top of the inner side of the RO membrane filter element 7. Two first insertion ports 9 are fixedly provided on the top of the inner side of the composite filter element 6. The two first insertion ports 9 are respectively set to correspond to the two first insertion holes 17. The three second insertion ports 12 are respectively set to correspond to the three second insertion holes 16. The two third insertion ports 13 are respectively set to correspond to the two third insertion holes 15.

[0022] In use, the three limiting grooves 20 facilitate the locking of the three filter element fixing covers 3 onto the top of the three filter elements, the six elastic clips 14 facilitate the locking of the three filter element fixing covers 3 onto the top of the three filter elements, and the two first insertion ports 9 respectively cooperate with the two first insertion holes 17, the three second insertion ports 12 respectively cooperate with the three second insertion holes 16, and the two third insertion ports 13 respectively cooperate with the two third insertion holes 15 to facilitate the installation of the three filter elements;

[0023] Reinforcing members 10 are fixedly installed at the connection points of the composite filter element 6 and the two first inlets 9, the connection points of the RO membrane filter element 7 and the three second inlets 12, and the connection points of the post-filter element 8 and the two third inlets 13. Reinforcing blocks 11 are fixedly installed in the middle of the seven reinforcing members 10. Through holes 18 are opened in the middle of the top of the three filter element fixing covers 3. Auxiliary protrusions 5 are fixedly installed on the outer side of the three filter element fixing covers 3. Insertion tube limiting steps 19 are provided at the top of the mounting bracket 1.

[0024] In use, the seven reinforcing parts 10 and seven reinforcing blocks 11 can improve the structural strength of the filter element inlet and prevent it from breaking. The auxiliary protrusion 5 makes it easy to open and close the filter element fixing cover 3. The insertion tube limiting step 19 can prevent the water inlet pipe from being inserted too deeply into the water circuit board, which would cause the water circuit board to have poor water intake, resulting in the water pump overheating and shortening the water pump's service life.

[0025] In use, the three filter cartridge insertion brackets 2 facilitate the initial positioning of the three filter cartridges. Then, by rotating the three filter cartridge fixing covers 3 clockwise, the limiting grooves 20 and elastic clips 14 on the surfaces of the three filter cartridges engage with the three filter cartridge fixing covers 3, firmly fixing the three filter cartridge fixing covers 3 to the top of the three filter cartridges, thus further positioning and fixing the three filter cartridges. The seven reinforcing members 10 and seven reinforcing blocks 11 improve the structural strength at the filter cartridge insertion points, effectively reducing vibrations during machine operation and preventing filter cartridge insertion point breakage and water leakage. The insertion pipe limiting step 19 prevents the water inlet pipe from being inserted too deeply into the water circuit board, which could lead to poor water flow, pump overheating, and a shortened pump lifespan.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage filter element, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) has three filter cartridge insertion brackets (2) on one side. The three filter cartridge insertion brackets (2) are respectively fitted with a composite filter cartridge (6), an RO membrane filter cartridge (7) and a post-filter cartridge (8). The inner walls of the three filter cartridge insertion brackets (2) are fixedly provided with rotating shafts (4). The two rotating shafts (4) on the same side are rotatably provided with filter cartridge fixing covers (3). The three filter cartridge fixing covers (3) are respectively provided with the composite filter cartridge (6), the RO membrane filter cartridge (7) and the post-filter cartridge (8). The inner sides of the three filter cartridge insertion brackets (2) are respectively provided with two first insertion holes (17), three second insertion holes (16) and two third insertion holes (15).

2. The multi-stage filter element according to claim 1, characterized in that: Limiting grooves (20) are provided on the top of the outer side of the composite filter element (6), the top of the outer side of the RO membrane filter element (7), and the top of the outer side of the post-filter element (8). The three limiting grooves (20) are respectively set to correspond to the three filter element fixing covers (3).

3. The multi-stage filter element according to claim 1, characterized in that: Elastic clips (14) are fixedly provided on the top of both sides of the composite filter element (6), the top of both sides of the RO membrane filter element (7), and the top of both sides of the post-filter element (8). The six elastic clips (14) are respectively provided with the three filter element fixing covers (3).

4. The multi-stage filter element according to claim 1, characterized in that: The top of the inner side of the post-filter (8) is fixedly provided with two third insertion ports (13), the top of the inner side of the RO membrane filter (7) is fixedly provided with three second insertion ports (12), the top of the inner side of the composite filter (6) is fixedly provided with two first insertion ports (9), the two first insertion ports (9) are respectively set to correspond to the two first insertion holes (17), the three second insertion ports (12) are respectively set to correspond to the three second insertion holes (16), and the two third insertion ports (13) are respectively set to correspond to the two third insertion holes (15).

5. A multi-stage filter element according to claim 4, characterized in that: The composite filter element (6) is fixedly provided with a reinforcing member (10) at the connection between the two first inlets (9), the RO membrane filter element (7) is fixedly provided with a connection between the three second inlets (12), and the post-filter element (8) is fixedly provided with a connection between the two third inlets (13). A reinforcing block (11) is fixedly provided in the middle of each of the seven reinforcing members (10).

6. A multi-stage filter element according to claim 1, characterized in that: Each of the three filter element fixing covers (3) has a through hole (18) in the middle of its top end, and an auxiliary protrusion (5) is fixedly provided on the outer side of each of the three filter element fixing covers (3).

7. A multi-stage filter element according to claim 1, characterized in that: The top of the mounting bracket (1) is provided with a tube insertion limiting step (19).

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