Anti-drop suspension type air filter cartridge

The design of the guiding and anti-detachment mechanism solves the problem of sealing failure at the connection between the filter cartridge and the outer cylinder, achieving a tight connection under high-frequency disassembly and assembly and negative pressure conditions, thus ensuring the air filtration effect.

CN224474812UActive Publication Date: 2026-07-10ZHANGJIAGANG FUTAI PURIFYING EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGJIAGANG FUTAI PURIFYING EQUIP CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In existing technologies, when the filter cartridge and outer cylinder are subjected to frequent disassembly and assembly operations or when severe negative pressure is generated inside the system, the connection between them is prone to sealing failure, resulting in dusty air being discharged directly without filtration, which affects the filtration effect.

Method used

The air filter cartridge adopts an anti-detachment suspension design. Through the cooperation of the guide mechanism and the anti-detachment mechanism, the inner core and the outer cylinder are tightly connected. The sealing ring and the pressing component are used to improve the sealing performance and prevent detachment and gaps.

Benefits of technology

It effectively prevents the inner core from shifting during installation, improving installation accuracy, and maintains a tight connection through the sealing ring and the pressure of the pressing component, ensuring that the filtration effect is not affected.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224474812U_ABST
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Abstract

The utility model discloses a kind of anti-drop suspension type air filter cartridge, it is related to air filter cartridge technical field, including inner cylinder core, the one end of inner cylinder core is equipped with guide mechanism, the outside of inner cylinder core is equipped with outer cylinder body, the outside of outer cylinder body is equipped with anti-drop mechanism, anti-drop mechanism includes moving disc, in the utility model, by rotating rotary disc, rotary disc moves in the outside of outer cylinder body, moving disc and moving rod are driven to move, moving block and push rod move in turn, drive pressure member to rotate on fixed block, the other end of pressure member moves to press down fixed cover, so that inner cylinder core is positioned and installed in the inside of outer cylinder body, first sealing ring sleeve is connected outside outer cylinder body at this time, second sealing ring sleeve is connected in the inside of sealing groove, pressure member exerts pressure, so that fixed cover keeps close connection with outer cylinder body, prevent falling while improving sealing property, prevent the gap at connecting portion to affect filtration effect.
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Description

Technical Field

[0001] This utility model relates to the field of air filter cartridge technology, and in particular to an anti-detachment suspended air filter cartridge. Background Technology

[0002] An air filter cartridge is a device used to filter impurities and pollutants from the air. The working principle of an air filter cartridge is to trap particulate matter and pollutants in the air through a filter screen, making the filtered air cleaner and healthier.

[0003] For example, CN221015078U discloses an anti-detachment suspended air filter cartridge, including an outer cylinder and a filter cartridge. A fixing frame is fixedly installed on the surface of the outer cylinder, a fixing plate is fixedly installed on the surface of the filter cartridge, a hanging ring is fixedly installed on the surface of the fixing plate, a support plate is fixedly installed on the surface of the fixing plate, and a control component is provided inside the fixing frame. The control component includes a cylinder, which is rotatably connected to the inner wall of the fixing frame.

[0004] In existing technologies, when the filter cartridge and outer cylinder undergo frequent disassembly and assembly operations or when severe negative pressure is generated inside the system, the connection between the two is prone to sealing failure. The fit tolerance at the interface will gradually increase due to mechanical wear, causing gaps to appear on the originally precisely fitted contact surface. Dust-laden air may be discharged directly without being filtered, affecting the filtration effect. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that when the filter cartridge and outer cylinder undergo frequent disassembly and assembly operations or when a severe negative pressure is generated inside the system, the connection is prone to sealing failure, which may cause dusty air to be discharged directly without filtration, affecting the filtration effect. Therefore, this invention proposes an anti-detachment suspended air filter cartridge.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an anti-detachment suspended air filter cartridge, comprising an inner core, a guide mechanism installed at one end of the inner core, an outer cylinder body installed outside the inner core, an anti-detachment mechanism installed on the outer side of the outer cylinder body, the anti-detachment mechanism comprising a movable disc, a movable rod fixedly connected to one end of the movable disc, a fixed disc slidably connected to the outside of the movable rod, the inner ring surface of the fixed disc being fixedly connected to the outer surface of the outer cylinder body, a movable block fixedly connected to one end of the movable rod, a push rod rotatably connected to one end of the movable block, a pressing member provided between the movable block and the push rod, a fixed block rotatably connected to the middle of the pressing member, a sealing groove opened at the top of the outer cylinder body, and a second sealing ring installed inside the sealing groove.

[0007] Preferably, the inner ring surface of the moving rod is rotatably connected to a rotating disk, and the inner ring surface of the rotating disk is threadedly connected to the threaded portion on the outer surface of the outer cylinder.

[0008] Preferably, the guiding mechanism includes a fixed cover, the middle part of which is fixedly connected to one end of the inner cylinder core, and a first sealing ring is fixedly connected to the inner side of the fixed cover, with the inner ring surface of the first sealing ring sleeved on the outside of the outer cylinder.

[0009] Preferably, a guide rod is fixedly connected to the outside of the fixed cover, and a positioning sleeve is inserted into one end of the guide rod.

[0010] Preferably, a fixing ring is fixedly connected to the top end of the positioning sleeve, the inner ring surface of the fixing ring is fixedly connected to the outer surface of the outer cylinder, and the outer surface of the fixing ring is fixedly connected to one end of the fixing block.

[0011] Preferably, a guide groove is provided on one side of the fixing collar, and one end of the guide groove is connected to the top of the positioning sleeve.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by rotating the rotating disk, the rotating disk moves outside the outer cylinder, driving the moving disk and moving rod to move. The moving block and pushing rod move accordingly, driving the pressing member to rotate on the fixed block. The other end of the pressing member moves to press down the fixed cover, thereby positioning and installing the inner cylinder core inside the outer cylinder. At this time, the first sealing ring is sleeved on the outside of the outer cylinder, and the second sealing ring is sleeved on the inside of the sealing groove. The pressing member applies pressure, so that the fixed cover is kept tightly connected to the outer cylinder, preventing it from falling off while improving the sealing performance and preventing gaps at the connection from affecting the filtration effect.

[0014] 2. In this utility model, when the inner core is inserted into the inner cylinder for installation, the guide rod will be inserted into any position of the guide groove. During the movement of the inner core, the guide groove can guide the guide rod, so that one end of the guide rod is guided into the interior of the positioning sleeve, thereby guiding and positioning the inner core and the outer cylinder, preventing the inner core from shifting position during installation, and improving the accuracy of installation. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of an anti-detachment suspended air filter cartridge is provided for this utility model;

[0016] Figure 2 This utility model provides a schematic diagram of the overall disassembled structure of an anti-detachment suspended air filter cartridge;

[0017] Figure 3 This utility model provides a disassembly diagram of the anti-detachment mechanism of an anti-detachment suspended air filter cartridge;

[0018] Figure 4 This utility model presents a disassembly diagram of the guide mechanism for an anti-detachment suspended air filter cartridge.

[0019] Legend: 1. Inner cylinder core; 2. Anti-detachment mechanism; 21. Moving disc; 22. Moving rod; 23. First sealing ring; 24. Second sealing ring; 25. Pressing component; 26. Fixed disc; 27. Fixed block; 28. Rotating disc; 29. ​​Moving block; 210. Push rod; 211. Sealing groove; 3. Outer cylinder; 4. Guide mechanism; 41. Fixed cover; 42. Guide rod; 43. Fixed collar; 44. Positioning sleeve; 45. Guide groove. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figures 1-4 As shown, this utility model provides an anti-detachment suspended air filter cartridge, including an inner core 1, a guide mechanism 4 installed at one end of the inner core 1, an outer cylinder 3 installed outside the inner core 1, and an anti-detachment mechanism 2 installed on the outer side of the outer cylinder 3. The anti-detachment mechanism 2 includes a movable disc 21, a movable rod 22 fixedly connected to one end of the movable disc 21, a fixed disc 26 slidably connected to the outside of the movable rod 22, the inner ring surface of the fixed disc 26 being fixedly connected to the outer surface of the outer cylinder 3, a movable block 29 fixedly connected to one end of the movable rod 22, and a push rod 210 rotatably connected to one end of the movable block 29. The movable block 29 and... A pressing member 25 is provided between the push rods 210. A fixing block 27 is rotatably connected to the middle of the pressing member 25. A sealing groove 211 is opened at the top of the outer cylinder 3. A second sealing ring 24 is installed inside the sealing groove 211. A rotating disk 28 is rotatably connected to the inner ring surface of the moving rod 22. The inner ring surface of the rotating disk 28 is threadedly connected to the threaded part on the outer surface of the outer cylinder 3. The guide mechanism 4 includes a fixing cover 41. The middle part of the fixing cover 41 is fixedly connected to one end of the inner cylinder core 1. A first sealing ring 23 is fixedly connected to the inner side of the fixing cover 41. The inner ring surface of the first sealing ring 23 is sleeved on the outside of the outer cylinder 3.

[0023] A threaded portion is provided on the outside of the outer cylinder 3, which is threadedly connected to the inner annular surface of the rotating disk 28. By rotating the rotating disk 28, the rotating disk 28 moves outside the outer cylinder 3, which can drive the moving disk 21 and the moving rod 22 to move. At the same time, the moving rod 22 slides on the fixed disk 26, which facilitates the linear movement of the fixed moving disk 21 and the moving rod 22. The movement of the moving block 29 and the pushing rod 210 can drive one end of the pressing member 25 to move. The middle part of the pressing member 25 rotates on the fixed block 27, so that the other end of the pressing member 25 moves to the lower fixed cover 4. 1. This positions the inner core 1 inside the outer cylinder 3. At this time, the first sealing ring 23 is sleeved on the outside of the outer cylinder 3, and the second sealing ring 24 is sleeved on the inside of the sealing groove 211. The pressing member 25 applies pressure to keep the fixing cover 41 tightly connected to the outer cylinder 3, preventing it from falling off and improving the sealing performance. This prevents gaps at the connection from affecting the filtration effect. During disassembly, the rotating disk 28 is rotated in the opposite direction to drive the moving disk 21 to move downward. Multiple pressing members 25 are flipped outward and separated from the fixing cover 41, and the inner core 1 is disassembled and removed upward.

[0024] Example 2: Figures 1-4 As shown, a guide rod 42 is fixedly connected to the outside of the fixed cover 41, and a positioning sleeve 44 is inserted into one end of the guide rod 42; a fixing ring 43 is fixedly connected to the top end of the positioning sleeve 44, the inner ring surface of the fixing ring 43 is fixedly connected to the outer surface of the outer cylinder 3, and the outer surface of the fixing ring 43 is fixedly connected to one end of the fixing block 27; a guide groove 45 is provided on one side of the fixing ring 43, and one end of the guide groove 45 communicates with the top end of the positioning sleeve 44.

[0025] A guide groove 45 is provided on the fixing collar 43. The bottom side of the guide groove 45 is designed to be inclined, and the rotation path of the guide groove 45 is consistent with that of the guide rod 42. When the inner cylinder core 1 is inserted into the inner cylinder body 3 for installation, the guide rod 42 will be inserted into any position of the guide groove 45. When the inner cylinder core 1 moves, the guide groove 45 can guide the guide rod 42, so that one end of the guide rod 42 is guided to be inserted into the inner cylinder core 1 and the outer cylinder body 3, thereby guiding and positioning the inner cylinder core 1 and the outer cylinder body 3, preventing the inner cylinder core 1 from shifting position during installation, and improving the accuracy of installation.

[0026] The usage and working principle of this device are as follows: First, the inner core 1 is inserted into the outer cylinder 3 for installation. The guide rod 42 can be inserted into any position of the guide groove 45. When the inner core 1 moves, the guide groove 45 can guide the guide rod 42, so that one end of the guide rod 42 is guided into the positioning sleeve 44, which guides and positions the installation of the inner core 1 and the outer cylinder 3. By rotating the rotating disk 28, the rotating disk 28 moves outside the outer cylinder 3, which can drive the moving disk 21 and the moving rod 22 to move. The moving block 29 and the pushing rod 210 move, which drives the pressing member 25 to rotate on the fixed block 27, so that the other end of the pressing member 25 moves to press down the fixed cover 41, thereby positioning and installing the inner core 1 inside the outer cylinder 3. At this time, the first sealing ring 23 is sleeved on the outside of the outer cylinder 3, and the second sealing ring 24 is sleeved inside the sealing groove 211. The pressing member 25 applies pressure, so that the fixed cover 41 is kept tightly connected to the outer cylinder 3, improving the sealing performance.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A type of anti-detachment suspended air filter cartridge, comprising an inner core (1), characterized in that: A guide mechanism (4) is installed at one end of the inner core (1). An outer cylinder (3) is installed on the outside of the inner core (1). An anti-detachment mechanism (2) is installed on the outside of the outer cylinder (3). The anti-detachment mechanism (2) includes a moving disc (21). A moving rod (22) is fixedly connected to one end of the moving disc (21). A fixed disc (26) is slidably connected to the outside of the moving rod (22). The inner ring surface of the fixed disc (26) is fixedly connected to the outer surface of the outer cylinder (3). A moving block (29) is fixedly connected to one end of the moving rod (22). A push rod (210) is rotatably connected to one end of the moving block (29). A pressing member (25) is provided between the moving block (29) and the push rod (210). A fixed block (27) is rotatably connected to the middle of the pressing member (25). A sealing groove (211) is opened at the top of the outer cylinder (3). A second sealing ring (24) is installed inside the sealing groove (211).

2. The anti-detachment suspended air filter cartridge according to claim 1, characterized in that: The inner ring surface of the moving rod (22) is rotatably connected to the rotating disk (28), and the inner ring surface of the rotating disk (28) is threadedly connected to the threaded part on the outer surface of the outer cylinder (3).

3. The anti-detachment suspended air filter cartridge according to claim 1, characterized in that: The guide mechanism (4) includes a fixed cover (41), the middle part of which is fixedly connected to one end of the inner cylinder core (1), and a first sealing ring (23) is fixedly connected to the inner side of the fixed cover (41), and the inner ring surface of the first sealing ring (23) is sleeved on the outside of the outer cylinder (3).

4. The anti-detachment suspended air filter cartridge according to claim 3, characterized in that: The fixed cover (41) is externally fixedly connected to a guide rod (42), and a positioning sleeve (44) is inserted into one end of the guide rod (42).

5. The anti-detachment suspended air filter cartridge according to claim 4, characterized in that: The top end of the positioning sleeve (44) is fixedly connected to a fixing ring (43), the inner ring surface of the fixing ring (43) is fixedly connected to the outer surface of the outer cylinder (3), and the outer surface of the fixing ring (43) is fixedly connected to one end of the fixing block (27).

6. The anti-detachment suspended air filter cartridge according to claim 5, characterized in that: A guide groove (45) is provided on one side of the fixing collar (43), and one end of the guide groove (45) is connected to the top of the positioning sleeve (44).