Quick connection type filter element device of filter

By introducing a quick-connect structure into the filter and utilizing a combination of guide drive rods and springs, the problem of inconvenient disassembly and assembly between the housing end cap and the housing is solved, enabling quick replacement of the filter element.

CN224113594UActive Publication Date: 2026-04-14ANHUI ZHIZE WATER PURIFICATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing filter housing end cap is fixed to the housing with multiple bolts, which makes disassembly and assembly inconvenient. The bolts are prone to rust and difficult to remove, affecting filter element replacement.

Method used

It adopts a quick-connect structure, including components such as guide drive rod, support plate and spring, to achieve quick assembly and disassembly of the housing and housing end cover, and to maintain a stable connection by utilizing the elastic force of the spring.

Benefits of technology

It enables quick assembly and disassembly of the housing and housing end caps, avoiding the problem of bolts rusting and improving the convenience of filter element replacement.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224113594U_ABST
Patent Text Reader

Abstract

The utility model discloses a quick connection type filter element device which comprises a shell, a filter element is arranged in the shell, a shell end cover covers the top end of the shell, and a quick connection structure is installed between the shell and the shell end cover. The shell and the shell end cover can be quickly disassembled and assembled through a quick connecting structure, and an upper end cover and a lower end cover are arranged at the upper end and the lower end of the filter element respectively. The clamping block can be clamped into the rectangular groove of the supporting block; the guide driving rod is pressed downwards until the clamping block is moved out of the rectangular groove, the guide driving rod is rotated until the clamping block is aligned with the rectangular through hole, and the guide driving rod 3 is pulled upwards, so that the shell end cover can be disassembled, the shell and the shell end cover are convenient to disassemble and assemble, and the filter element is more convenient to disassemble and assemble.
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Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a quick-connect filter cartridge device. Background Technology

[0002] The filter consists of a housing and a housing end cap. The filter element is installed in the inner cavity of the housing, and the housing end cap is installed at the opening of the housing. However, in current filters, the housing end cap is fixed to the housing by multiple bolts, making it inconvenient to disassemble and assemble the housing end cap. Furthermore, the bolts are prone to rusting, and the walls of the internal threaded holes on the housing end cap and the housing are also prone to rusting, which can cause the bolts to rust and become difficult to disassemble, making it inconvenient to replace the filter element. Utility Model Content

[0003] In view of the problems existing in the current quick-connect filter cartridge device, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide a quick-connect filter element device, which solves the problem that in current filters, the end cap of the housing is fixed to the housing with multiple bolts, making it inconvenient to disassemble and assemble the end cap; and the bolts are prone to rust, as are the inner threaded hole walls on the end cap and the housing, which can lead to the bolts seizing up and becoming difficult to disassemble, thus making it inconvenient to replace the filter element.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] A quick-connect filter cartridge device includes a housing, a filter cartridge inside the housing, a housing end cap at the top of the housing, and a quick-connect structure installed between the housing and the housing end cap; the quick-connect structure enables quick assembly and disassembly between the housing and the housing end cap.

[0007] As a preferred embodiment of the quick-connect filter cartridge device of this utility model, the filter cartridge is provided with an upper end cap and a lower end cap at its upper and lower ends, respectively.

[0008] As a preferred embodiment of the quick-connect filter cartridge device of this utility model, the bottom of the housing has a first insertion support seat, and the top of the first insertion support seat is inserted into the lower end cover.

[0009] The bottom of the housing end cap has a second insertion support, the bottom of which is inserted into the upper end cap.

[0010] As a preferred embodiment of the quick-connect filter cartridge device of this utility model, the end cap of the housing has an air inlet, the end of the housing away from the end cap of the housing has an air outlet hood, the end of the air outlet hood has an air outlet, and the bottom end of the housing has an air outlet hole, through which the communication between the inner cavity of the air outlet hood and the inner cavity of the housing is realized.

[0011] As a preferred embodiment of the quick-connect filter cartridge device of this utility model, the quick-connect structure includes a support block welded to the inner wall of the housing and a guide drive rod passing through the end cover of the housing. A support plate is installed at the end of the guide drive rod, and a spring is sleeved on the guide drive rod. The two ends of the spring are respectively fixedly connected to the end cover of the housing and the support plate. A vertical rod is installed at the bottom of the support plate, and a locking block is welded to the end of the vertical rod.

[0012] The support block has a through hole, a rectangular through hole, and a rectangular groove. There are two rectangular through holes, and the two rectangular through holes are symmetrical about the through hole. There are two rectangular grooves, and the two rectangular grooves are symmetrical about the through hole.

[0013] In a preferred embodiment of the quick-connect filter cartridge device of this utility model, the top of the spring is welded with a mounting plate, the mounting plate is fixed to the bottom of the housing end cover by bolts, and the bottom of the spring is welded to the support plate.

[0014] In a preferred embodiment of the quick-connect filter cartridge device of this utility model, the top of the support plate is welded with a first support connecting seat, the bottom end of the guide drive rod is inserted into the first support connecting seat, and the first support connecting seat and the guide drive rod are fixed together by bolts.

[0015] The bottom end of the support plate is welded with a second support connecting seat, the top end of the upright is inserted into the second support connecting seat, and the second support connecting seat and the upright are fixed together by bolts.

[0016] Compared with existing technologies:

[0017] By setting a quick-connect structure between the housing and the housing end cap, the locking block can be inserted into the rectangular groove of the support block by pressing down and rotating the guide drive rod; pressing down the guide drive rod until the locking block moves out of the rectangular groove, rotating the guide drive rod until the locking block is aligned with the rectangular through hole, and pulling up the guide drive rod 3, the housing end cap can be removed. Therefore, the disassembly and assembly between the housing and the housing end cap is convenient, which also makes the disassembly and assembly of the filter element more convenient. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the present invention;

[0019] Figure 2 Provided by this utility model Figure 1 A sectional view;

[0020] Figure 3 A top view of the support block provided by this utility model;

[0021] Figure 4 A bottom view of the support block provided by this utility model;

[0022] Figure 5 Enlarged view of the pole and locking block provided by this utility model;

[0023] Figure 6 Provided by this utility model Figure 2 A magnified view of a portion of the image;

[0024] Figure 7 Provided by this utility model Figure 6 Enlarged view of point A in the middle;

[0025] Figure 8 A schematic diagram of the housing provided by this utility model.

[0026] In the diagram: 1. Housing; 2. Housing end cap; 3. Guide drive rod; 4. Air inlet; 5. Air outlet hood; 6. Air outlet; 7. Filter element; 71. Upper end cap; 72. Lower end cap; 8. Second insertion support; 9. Support block; 91. Through hole; 92. Rectangular through hole; 93. Rectangular groove; 10. Spring; 11. First insertion support; 12. Air outlet through hole; 13. Mounting plate; 14. Support plate; 15. First support connecting seat; 16. Second support connecting seat; 17. Upright rod; 18. Snap-in block; 19. Guide pin. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] This utility model provides a quick-connect filter cartridge device. Please refer to [link / reference]. Figure 1-8 The system includes a housing 1, which contains a filter element 7. The filter element 7 has an upper end cap 71 and a lower end cap 72 at its upper and lower ends, respectively. The top of the housing 1 is covered with a housing end cap 2. A quick-connect structure is installed between the housing 1 and the housing end cap 2. The quick-connect structure enables quick assembly and disassembly between the housing 1 and the housing end cap 2.

[0029] The bottom of the housing 1 has a first insertion support 11, the top of which is inserted into the lower end cover 72; the bottom of the housing end cover 2 has a second insertion support 8, the bottom of which is inserted into the upper end cover 71; the first insertion support 11 and the second insertion support 8 ensure the stability of the filter element 7.

[0030] The end cap 2 of the housing has an air inlet 4, and the end of the housing 1 away from the end cap 2 has an air outlet 5. The end of the air outlet 5 has an air outlet 6, and the bottom of the housing 1 has an air outlet hole 12. The air outlet hole 12 enables communication between the inner cavity of the air outlet 5 and the inner cavity of the housing 1.

[0031] The quick-connect structure includes a support block 9 welded to the inner wall of the housing 1 and a guide drive rod 3 passing through the housing end cover 2. The housing end cover 2 has a through hole for the guide drive rod 3 to pass through, and a guide sleeve is provided in the through hole. The guide drive rod 3 is slidably connected to the inner wall of the guide sleeve. A support plate 14 is installed at the end of the guide drive rod 3, and a spring 10 is sleeved on the guide drive rod 3. The two ends of the spring 10 are respectively fixedly connected to the housing end cover 2 and the support plate 14. Specifically, a mounting plate 13 is welded to the top of the spring 10, and the mounting plate 13 is fixed to the bottom of the housing end cover 2 by bolts. The bottom of the spring 10 is welded to the support plate 14. Figure 2 As shown, at this time, the spring 10 is in a stretched state, and the spring force drives the housing end cover 2 to be tightly closed on the housing 1; and the spring force of the spring 10 must be large enough to ensure the stability of the housing end cover 2 on the housing 1.

[0032] A first support connecting seat 15 is welded to the top of the support plate 14. The bottom end of the guide drive rod 3 is inserted into the first support connecting seat 15, and the first support connecting seat 15 and the guide drive rod 3 are fixed together by bolts. A vertical rod 17 is installed at the bottom of the support plate 14. Specifically, a second support connecting seat 16 is welded to the bottom of the support plate 14. The top end of the vertical rod 17 is inserted into the second support connecting seat 16, and the second support connecting seat 16 and the vertical rod 17 are fixed together by bolts. A locking block 18 is welded to the end of the vertical rod 17. The support block 9 has a through hole 91, a rectangular through hole 92, and a rectangular groove 93. There are two rectangular through holes 92, and the two rectangular through holes 92 are symmetrical about the through hole 91. There are two rectangular grooves 93, and the two rectangular grooves 93 are symmetrical about the through hole 91. The locking block 18 is locked into the rectangular groove 93. The vertical rod 17 and the locking block 18 can pass through the through hole 91 and the rectangular through hole 92 together.

[0033] A guide pin 19 is welded to the top of the housing 1. A guide through hole with the same diameter as the guide pin 19 is opened on the housing end cover 2. When the housing end cover 2 is placed on the housing 1 and the guide pin 19 is inserted into the guide through hole, the upright 17 is located directly above the through hole 91.

[0034] In practical use, the filter element 7 is placed inside the housing 1, and the top of the first insertion support 11 is inserted into the lower end cover 72; the housing end cover 2 is placed on the top of the housing 1, and the guide pin 19 is inserted into the guide through hole on the housing end cover 2.

[0035] Press down the guide drive rod 3, and the upright rod 17 and the locking block 18 pass through the through hole 91 and the rectangular through hole 92. At this time, the spring 10 is stretched. Rotate the guide drive rod 3 until the locking block 18 is aligned with the rectangular groove 93. Release the guide drive rod 3. Under the elastic force of the spring 10, the locking block 18 is locked into the rectangular groove 93. The elastic force of the spring drives the housing end cover 2 to be tightly closed on the housing 1.

[0036] During disassembly, press the guide drive rod 3 down until the snap block 18 moves out of the rectangular groove 93, rotate the guide drive rod 3 until the snap block 18 is aligned with the rectangular through hole 92, pull the guide drive rod 3 up, and remove the housing end cover 2.

[0037] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A quick-connect filter cartridge device, comprising a housing (1), wherein a filter cartridge (7) is disposed within the housing (1), and a housing end cap (2) is provided at the top of the housing (1), characterized in that: A quick-connect structure is installed between the housing (1) and the housing end cap (2); the quick-connect structure enables quick assembly and disassembly between the housing (1) and the housing end cap (2); The quick-connect structure includes a support block (9) welded to the inner wall of the housing (1) and a guide drive rod (3) passing through the housing end cover (2). A support plate (14) is installed at the end of the guide drive rod (3). A spring (10) is sleeved on the guide drive rod (3). The two ends of the spring (10) are respectively fixedly connected to the housing end cover (2) and the support plate (14). A vertical rod (17) is installed at the bottom of the support plate (14). A locking block (18) is welded to the end of the vertical rod (17). The support block (9) is provided with a through hole (91), a rectangular through hole (92) and a rectangular groove (93). There are two rectangular through holes (92), and the two rectangular through holes (92) are symmetrical about the through hole (91). There are two rectangular grooves (93), and the two rectangular grooves (93) are symmetrical about the through hole (91).

2. The quick-connect filter cartridge device according to claim 1, characterized in that, The filter element (7) is provided with an upper end cap (71) and a lower end cap (72) at its upper and lower ends, respectively.

3. The quick-connect filter cartridge device according to claim 1, characterized in that, The bottom of the housing (1) has a first insertion support (11), and the top of the first insertion support (11) is inserted into the lower end cover (72). The bottom of the housing end cap (2) has a second insertion support (8), the bottom of which is inserted into the upper end cap (71).

4. A quick-connect filter cartridge device according to claim 2 or 3, characterized in that, The end cap (2) of the housing has an air inlet (4), and the end of the housing (1) away from the end cap (2) has an air outlet (5). The end of the air outlet (5) has an air outlet (6), and the bottom of the housing (1) has an air outlet hole (12). The air outlet hole (12) enables communication between the inner cavity of the air outlet hole (5) and the inner cavity of the housing (1).

5. A quick-connect filter cartridge device according to claim 4, characterized in that, The top of the spring (10) is welded with a mounting plate (13), which is fixed to the bottom of the housing end cover (2) by bolts. The bottom of the spring (10) is welded to the support plate (14).

6. A quick-connect filter cartridge device according to claim 4 or 5, characterized in that, The top of the support plate (14) is welded with a first support connecting seat (15), the bottom end of the guide drive rod (3) is inserted into the first support connecting seat (15), and the first support connecting seat (15) and the guide drive rod (3) are fixed together by bolts; The bottom end of the support plate (14) is welded with a second support connecting seat (16), the top end of the upright (17) is inserted into the second support connecting seat (16), and the second support connecting seat (16) and the upright (17) are fixed together by bolts.