Glass fiber fabric filter bag

By using a limiting ring and a retaining ring to engage and connect, combined with a support and adjustment components, the problems of unstable fiberglass filter bag keel and easy deformation of the bag opening are solved, achieving stable support and flexible adaptation to the needs of filter bags of different lengths.

CN224167136UActive Publication Date: 2026-04-28JIANGSU XINHONGYUN FILTER MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU XINHONGYUN FILTER MATERIAL CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The connection between the frame and the filter bag in existing glass fiber filter bags is unstable, making them prone to loosening and falling off, and the bag opening is also prone to deformation.

Method used

The system uses a locking ring and a retaining ring for connection. The frame is supported by a support and a sleeve. The combination of adjustment and locking components ensures the firmness and stability between the frame and the retaining ring. The system can also be adjusted by threads to accommodate bags of different lengths.

Benefits of technology

It improves the stability of the keel and filter bag, prevents bag mouth deformation, and is easy to install and disassemble, adapting to filter bags of different lengths.

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Abstract

The utility model relates to the technical field of industrial filtration, and discloses a glass fiber fabric filter bag which is characterized in that a limiting ring is clamped with a clamping ring, the clamping ring is fixed, the clamping ring can limit the limiting ring, namely, a bag opening of a bag body can be supported, and a second framework can be supported through a support and a sleeve; the second framework and the first framework can support the interior of the bag body, the limiting assembly can provide supporting and limiting between the clamping ring and the support, and firmness and stability between the second framework and the clamping ring can be kept. The limiting ring and the clamping ring are clamped, the clamping ring is fixed, the clamping ring can limit the limiting ring, namely, the bag opening of the bag body can be supported, the second framework can be supported through the support and the sleeve, the second framework and the first framework can support the interior of the bag body, and the limiting assembly can provide supporting and limiting between the clamping ring and the support. The firmness and the stability between the second framework and the clamping ring can be kept, and the second framework is not prone to loosening and falling off under the action of external force.
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Description

Technical Field

[0001] This utility model relates to the field of industrial filtration technology, specifically a glass fiber fabric filter bag. Background Technology

[0002] Glass fiber filter bags are filter elements made of glass fiber material, mainly used in industrial dust removal and air purification. Their main features include high temperature resistance, corrosion resistance, high filtration accuracy, and long service life.

[0003] The patent application "202122810159.8" discloses a "high-temperature resistant, corrosion-resistant, alkali-free glass fiber filter bag," which "includes a glass fiber filter bag body, and an adhesive mechanism is fixedly connected to the outer surface of the glass fiber filter bag body. The adhesive mechanism includes multiple first adhesive bodies and multiple second adhesive bodies, and the positions of the multiple first adhesive bodies and multiple second adhesive bodies are symmetrically distributed about the middle position of the glass fiber filter bag body. In this utility model, when the filter bag is in working condition, due to the engagement of the keel locking groove on the fixing bracket with the keel, and the magnetism of the fixing bracket itself, the filter bag itself can be stably supported, and it will not detach even when subjected to pulling force."

[0004] However, the above method still has the following drawbacks: the filter bag can be supported by the fixed bracket, but the fixed bracket needs to be connected to the keel clamping groove by magnetism in order to support the glass fiber filter bag body. The fixed bracket is prone to loosening and falling off under external force, which will reduce the stability of the keel and the filter bag. After the keel is fixed by the fixed bracket, gaps are easily generated between the keel and the bag opening of the filter bag, and the bag opening of the filter bag is prone to deformation. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a glass fiber fabric filter bag, which has the advantages of ensuring the stability of the frame and the filter bag, and the filter bag opening is not easily deformed, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a glass fiber fabric filter bag, including a bag body, a limiting ring fixedly provided at the top of the bag body, a retaining ring engaged with the surface of the limiting ring, a first skeleton installed inside the limiting ring, a second skeleton slidably connected to the first skeleton, an adjustment component for adjusting the first skeleton provided at the middle of the top of the first skeleton, a sleeve fixedly provided at the middle of the top of the second skeleton, a support fixedly provided at the top of the sleeve, a limiting component for limiting the retaining ring connected to the support, a cover plate fixedly connected to the top of the support by screws, and a support frame fixedly provided at the middle of the top of the cover plate.

[0007] As a preferred technical solution of this utility model, the adjustment component includes a screw, the bottom of which is rotatably connected to a support plate via a smooth rod, the support plate being fixedly connected to the middle of the top end of a frame, a knob being fixedly provided at the bottom end of the smooth rod, and a threaded sleeve being threadedly connected to the surface of the screw, the threaded sleeve being fixedly connected to the inner wall of the bottom end of the sleeve.

[0008] As a preferred technical solution of this utility model, a first upright is fixedly provided on the surface of the first frame, a second upright is fixedly provided on the surface of the second frame, and a through hole is provided at the top of the first frame for sliding connection with the second upright.

[0009] As a preferred embodiment of this utility model, the bottom end of the retaining ring is provided with a groove, the limiting ring is engaged with the inside of the groove, and the surface of the retaining ring is provided with a plurality of mounting holes.

[0010] As a preferred technical solution of this utility model, the limiting component includes a limiting rod, a rod sleeve that is slidably connected to the limiting rod is fixedly provided on the surface of the support, a locking block is fixedly provided at one end of the limiting rod, a locking groove that engages with the locking block is opened on the inner wall of the locking ring, a baffle is fixedly provided at the other end of the limiting rod, and a spring is engagedly connected to one side of the baffle.

[0011] As a preferred embodiment of this utility model, a support block is fixedly provided inside the support, and one end of the spring is engaged with the support block.

[0012] As a preferred embodiment of this utility model, a push plate is fixedly provided at the top of the baffle, a groove is provided on the surface of the cover plate to be slidably connected to the push plate, a rotating shaft is rotatably connected to the surface of the push plate, and a turntable is fixedly provided at one end of the rotating shaft.

[0013] As a preferred technical solution of this utility model, a pull plate is fixedly provided at the other end of the rotating shaft, and channels corresponding to the pull plate are opened at the bottom of the four sides of the support frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By engaging the limiting ring and the retaining ring and fixing the retaining ring, the retaining ring can limit the limiting ring, thus supporting the bag opening. The support and sleeve can support the second frame, and the second frame and the first frame can support the inside of the bag. The limiting component can provide support and limit between the retaining ring and the support, which can maintain the firmness and stability between the second frame and the retaining ring. It is not easy to loosen or fall off under external force, the bag opening is not easy to deform, and it is easy to install and disassemble.

[0016] 2. By sliding the first frame and the second frame together, the first frame can be extended and retracted. The distance between the first frame and the retaining ring can be easily adjusted by adjusting the component. It can be used for bags of different lengths, has good flexibility, and can make the first frame fit the bottom of the bag, improving the internal support effect of the bag. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the bag body of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the first skeleton of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0021] Figure 5 This is a schematic diagram of the retaining ring of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the support of this utility model;

[0023] Figure 7 This is a schematic diagram of the limiting component of this utility model.

[0024] In the diagram: 1. Bag body; 2. Limiting ring; 3. Snap ring; 4. Frame 1; 5. Frame 2; 6. Adjustment component; 601. Screw; 602. Support plate; 603. Knob; 604. Threaded sleeve; 7. Sleeve; 8. Support; 9. Limiting component; 901. Limiting rod; 902. Snap block; 903. Baffle; 904. Spring; 905. Push plate; 906. Rotating shaft; 907. Turntable; 908. Pull plate; 10. Support block; 11. Rod sleeve; 12. Cover plate; 13. Plate groove; 14. Support frame; 15. Channel; 16. Groove; 17. Upright rod 1; 18. Through hole; 19. Upright rod 2; 20. Snap groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-7A fiberglass fabric filter bag includes a bag body 1. A limiting ring 2 is fixedly provided at the top of the bag body 1. A retaining ring 3 is engaged with the surface of the limiting ring 2. By engaging the limiting ring 2 with the retaining ring 3 and fixing the retaining ring 3, the retaining ring 3 can limit the limiting ring 2, thus supporting the bag opening of the bag body 1. A first frame 4 is installed inside the limiting ring 2. A second frame 5 is slidably connected to the first frame 4. An adjustment component 6 is provided at the middle of the top of the first frame 4 for adjustment. A sleeve 7 is fixedly provided at the middle of the top of the second frame 5. A support 8 is fixedly provided at the top of the sleeve 7. The support 8 is connected to a limiting component 9 that limits the snap ring 3. The support 8 and the sleeve 7 can support the second frame 5. The second frame 5 and the first frame 4 can support the inside of the bag body 1. The limiting component 9 can provide support and limit between the snap ring 3 and the support 8, which can maintain the firmness and stability between the second frame 5 and the snap ring 3, and facilitate installation and disassembly. A cover plate 12 is fixedly connected to the top of the support 8 by screws. A support frame 14 is fixedly provided in the middle of the top of the cover plate 12.

[0027] In this embodiment, preferably, the adjusting component 6 includes a screw 601. The bottom of the screw 601 is rotatably connected to a support plate 602 via a smooth rod. The support plate 602 is fixedly connected to the middle of the top of the first frame 4. A knob 603 is fixedly provided at the bottom of the smooth rod. A threaded sleeve 604 is threadedly connected to the surface of the screw 601. The threaded sleeve 604 is fixedly connected to the inner wall of the bottom of the sleeve 7. The screw 601 and the threaded sleeve 604 can provide support between the second frame 5 and the first frame 4. By rotating the screw 601 by the knob 603, it can rotate inside the threaded sleeve 604, thereby adjusting the height of the first frame 4. The first frame 4 can be extended and retracted, making it suitable for use with bags 1 of different lengths, and providing good flexibility.

[0028] In this embodiment, preferably, the limiting component 9 includes a limiting rod 901. A rod sleeve 11 that is slidably connected to the limiting rod 901 is fixedly provided on the surface of the support 8. A locking block 902 is fixedly provided at one end of the limiting rod 901. A locking groove 20 that engages with the locking block 902 is opened on the inner wall of the locking ring 3. A baffle 903 is fixedly provided at the other end of the limiting rod 901. A spring 904 is engaged and connected to one side of the baffle 903. A support block 10 is fixedly provided inside the support 8. One end of the spring 904 is engaged and connected to the support block 10. A push plate 905 is fixedly provided at the top of the baffle 903. A plate groove 13 that is slidably connected to the push plate 905 is opened on the surface of the cover plate 12. A rotating shaft 906 is rotatably connected to the surface of the push plate 905. A turntable 907 is fixedly provided at one end of the rotating shaft 906. The other end of 06 is fixedly provided with a pull plate 908. The bottom of the four sides of the support frame 14 are provided with channels 15 corresponding to the pull plate 908. By pushing the limiting rod 901 with the push plate 905, the spring 904 can be compressed. The limiting rod 901 can retract, allowing the pull plate 908 to pass through the channel 15. By rotating the rotating shaft 906 with the turntable 907, the pull plate 908 is positioned at the top of the rotating shaft 906. Then, the push plate 905 is released, and the support frame 14 can limit the pull plate 908, keeping the limiting rod 901 in a retracted state. This makes it easy to put the support 8 into the retaining ring 3, so that the limiting rod 901 and the retaining groove 20 are on the same horizontal plane. By rotating the rotating shaft 906, the pull plate 908 is reset, and the spring 904 can push the retaining block 902 into the retaining groove 20 through the limiting rod 901.

[0029] In this embodiment, preferably, the surface of the first frame 4 is fixedly provided with a first upright 17, the surface of the second frame 5 is fixedly provided with a second upright 19, and the top of the first frame 4 is provided with a through hole 18 that is slidably connected to the second upright 19. The second upright 19 can guide the first frame 4 through the through hole 18, which can prevent the first frame 4 from tilting.

[0030] In this embodiment, preferably, the bottom end of the retaining ring 3 is provided with a groove 16, and the limiting ring 2 is engaged with the inside of the groove 16. The surface of the retaining ring 3 is provided with a plurality of mounting holes. The groove 16 can limit the retaining ring 3, and the mounting holes can fix the retaining ring 3 in place.

[0031] When in use, first place the bag body 1 into the installation port of the filter equipment and make the limiting ring 2 of the bag body 1 fit into the installation port. The limiting ring 2 can prevent the bag body 1 from falling off. Then, the retaining ring 3 is engaged with the limiting ring 2 through the groove 16. Then, the retaining ring 3 is fixed to the installation port of the filter equipment with bolts. The retaining ring 3 can press the limiting ring 2 and support the bag opening of the bag body 1, which can prevent the bag opening from deforming.

[0032] After the retaining ring 3 is fixed, the second skeleton 5 and the first skeleton 4 are placed inside the bag body 1. The adjusting component 6 can provide support between the second skeleton 5 and the first skeleton 4 through the screw 601 and the threaded sleeve 604. The second skeleton 5 and the first skeleton 4 can support the inside of the bag body 1. Since the second skeleton 5 and the first skeleton 4 are slidably connected, before inserting the first skeleton 4, the arm is passed through the gap between the uprights 17. The screw 601 is rotated by the knob 603 so that it rotates inside the threaded sleeve 604, which can adjust the height of the first skeleton 4. The first skeleton 4 can be extended and retracted, which is suitable for use with bag bodies 1 of different lengths. It has good flexibility and can make the bottom end of the first skeleton 4 fit the bottom end of the bag body 1, which improves the support effect inside the bag body 1.

[0033] After the first frame 4 and the second frame 5 are installed, the push plate 905 of the limiting component 9 pushes the limiting rod 901, which compresses the spring 904. The limiting rod 901 can retract, and then the pull plate 908 passes through the channel 15 of the support frame 14. The rotating shaft 906 is rotated by the turntable 907, so that the pull plate 908 is located at the top of the rotating shaft 906. Then the push plate 905 is released, and the support frame 14 can limit the pull plate 908, keeping the limiting rod 901 in a retracted state. Then the support 8 is placed into the retaining ring 3, so that the limiting rod 901 and the retaining groove 20 are on the same horizontal plane. Finally, the rotating shaft 906 is rotated to reset the pull plate 908. The spring 904 can push the retaining block 902 into the retaining groove 20 through the limiting rod 901, thus locking the support 8. This can provide support and limit between the retaining ring 3 and the support 8, and can maintain the firmness and stability between the second frame 5 and the retaining ring 3, making it difficult to loosen or fall off under external force.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glass fiber fabric filter bag, comprising a bag body (1), characterized in that: The top of the bag body (1) is fixedly provided with a limiting ring (2), and a retaining ring (3) is engaged with the surface of the limiting ring (2). A first frame (4) is installed inside the limiting ring (2), and a second frame (5) is slidably connected to the first frame (4). An adjustment component (6) for adjusting the first frame (4) is provided at the middle of the top of the first frame (4). A sleeve (7) is fixedly provided at the middle of the top of the second frame (5). A support (8) is fixedly provided at the top of the sleeve (7). A limiting component (9) for limiting the retaining ring (3) is connected to the support (8). A cover plate (12) is fixedly connected to the top of the support (8) by screws. A support frame (14) is fixedly provided at the middle of the top of the cover plate (12).

2. The glass fiber fabric filter bag according to claim 1, characterized in that: The adjustment component (6) includes a screw (601), the bottom of which is rotatably connected to a support plate (602) via a smooth rod. The support plate (602) is fixedly connected to the middle of the top of the frame (4). A knob (603) is fixedly provided at the bottom of the smooth rod. A threaded sleeve (604) is threadedly connected to the surface of the screw (601), and the threaded sleeve (604) is fixedly connected to the inner wall of the bottom of the sleeve (7).

3. The glass fiber fabric filter bag according to claim 1, characterized in that: The surface of the first frame (4) is fixedly provided with a first upright (17), the surface of the second frame (5) is fixedly provided with a second upright (19), and the top of the first frame (4) is provided with a through hole (18) that is slidably connected to the second upright (19).

4. The glass fiber fabric filter bag according to claim 1, characterized in that: The bottom end of the retaining ring (3) is provided with a groove (16), and the limiting ring (2) is engaged with the inside of the groove (16). The surface of the retaining ring (3) is provided with several mounting holes.

5. The glass fiber fabric filter bag according to claim 1, characterized in that: The limiting component (9) includes a limiting rod (901). The surface of the support (8) is fixedly provided with a rod sleeve (11) that is slidably connected to the limiting rod (901). One end of the limiting rod (901) is fixedly provided with a locking block (902). The inner wall of the retaining ring (3) is provided with a locking groove (20) that engages with the locking block (902). The other end of the limiting rod (901) is fixedly provided with a baffle (903). One side of the baffle (903) is engaged with a spring (904).

6. The glass fiber fabric filter bag according to claim 5, characterized in that: The support (8) is fixedly provided with a support block (10) inside, and one end of the spring (904) is engaged with the support block (10).

7. The glass fiber fabric filter bag according to claim 5, characterized in that: A push plate (905) is fixedly provided at the top of the baffle (903), and a plate groove (13) is opened on the surface of the cover plate (12) to slide and connect with the push plate (905). A rotating shaft (906) is rotatably connected to the surface of the push plate (905), and a turntable (907) is fixedly provided at one end of the rotating shaft (906).

8. The glass fiber fabric filter bag according to claim 7, characterized in that: The other end of the rotating shaft (906) is fixedly provided with a pull plate (908), and the bottom of the four sides of the support frame (14) are provided with channels (15) corresponding to the pull plate (908).

Citation Information

Patent Citations

  • High-temperature-resistant corrosion-resistant alkali-free glass fiber filter bag

    CN216825280U