A combined filter bag
Patent Information
- Application Number
- CN202522642026.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-12
AI Technical Summary
Traditional keel frames are one-piece structures that cannot be adjusted, which makes it easy for longer filter bags to wrinkle during use, and the fixing method is not firm and is prone to loosening.
The filter bag adopts a combined structure, including a support rod, annular ring, telescopic groove, telescopic rod and adjusting nut. The distance between the annular ring and the retaining ring is changed by sliding the threaded column of the adjusting nut. Combined with the retaining ring, collar, arc-shaped top block and fastening nut, the filter bag can be adjusted and firmly fixed. It is also equipped with an external plate, guide rod and reciprocating electric push rod for dust cleaning.
It enables flexible installation of filter bags to accommodate different lengths, prevents loosening, improves installation stability, and removes dust through vibration of the electric push rod, reducing cleaning frequency.
Smart Images

Figure CN224925798U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter bag technology, and more specifically, to a combined filter bag. Background Technology
[0002] Filter bags are a crucial component in the operation of baghouse dust collectors. They are also known as dust collection bags, dust bags, dust filter bags, dust collection bags, dust collector bags, and dust collection bags. As a professional manufacturing base for dust collector accessories, we are highlighting the importance of filter bags. Cylindrical filter bags are typically suspended vertically within the dust collector. The fabric and design of the filter bags should prioritize high-efficiency filtration, easy dust removal, and durability.
[0003] When using filter bags, they are usually fitted onto the outside of the frame. However, most traditional frames are one-piece structures and cannot be adjusted according to the size of the filter bags. This can cause wrinkles to appear when using longer filter bags, thus affecting the purification area.
[0004] Furthermore, during installation, most filter bags are fixed to the frame using elastic clips. This fixing method is not secure, and with prolonged use, the filter bags may loosen due to gas impact, affecting normal use. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the problems existing in the prior art, this utility model provides a modular filter bag to solve the technical problem mentioned in the background art, which is that most traditional keel frames are one-piece structures and cannot be adjusted according to the specifications of the filter bag, resulting in wrinkles when using longer filter bags.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a combined filter bag, including an mounting plate, a support rod fixedly mounted on the bottom of the mounting plate, multiple support rods arranged in a circular pattern, an annular ring fixedly mounted on the bottom of each support rod, a telescopic groove formed on the lower end face of the annular ring, multiple telescopic grooves communicating with the interior of each support rod, a telescopic rod slidably mounted inside each telescopic groove, a retaining ring fixedly mounted on the bottom of each telescopic rod, a threaded post fixedly mounted on the upper end face of each retaining ring, multiple threaded posts movably mounted with the annular ring, an adjusting nut mounted on each threaded post, two sets of adjusting nuts respectively contacting the upper and lower ends of the annular ring, a filter bag body sleeved on the outer side of the support rods and telescopic rods, and a retaining ring fixedly mounted on the upper end of the filter bag body.
[0009] The present invention is further configured such that a collar is fixedly provided on the lower end face of the mounting plate, the outer wall of the retaining ring contacts the inner wall of the collar, a groove is provided on the outer wall of the collar, multiple grooves are provided and each groove has a pin slidably provided inside, a slot is correspondingly provided on the outer wall of the retaining ring, and one end of each pin passes through the groove and is located inside the slot, which facilitates the fixed installation of the filter bag body.
[0010] The present invention is further configured such that an arc-shaped top block is fixedly provided at the other end of each pin, a connecting spring is fixedly provided between the arc-shaped top block and the groove, a fastening nut is provided on the outer wall of the collar, the fastening nut is threadedly connected to the outer wall of the collar, and the outer wall of each arc-shaped top block contacts the inner wall of the fastening nut, which facilitates limiting the pin and preventing it from coming out.
[0011] The present invention is further configured such that guide rods are fixedly provided on the upper end face of the mounting plate at each of the four corners, and an outer plate is slidably provided on the guide rods. A return spring is fixedly provided on the lower end face of the outer plate at each of the four corners, and the other end of the return spring is fixedly connected to the upper end face of the mounting plate, which facilitates the cleaning of dust on the filter bag body.
[0012] The present invention is further configured such that a reciprocating electric push rod is fixedly provided on the upper end surface of the outer plate and on one side, and the output end of the reciprocating electric push rod is fixedly connected to the mounting plate, so as to facilitate the up and down vibration of the filter bag body.
[0013] The present invention is further provided with ear plates fixed on both sides of the outer plate, which facilitates the installation of the outer plate with the dust collector.
[0014] The present invention is further configured such that an exhaust pipe is fixedly provided on the upper end face of the mounting plate, and the exhaust pipe is slidably installed with the outer plate to facilitate the discharge of purified flue gas.
[0015] The present invention is further provided with a limiting block at the upper end of each guide rod, which facilitates limiting the movement distance of the mounting plate.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, the present invention provides a combined filter bag, which has the following beneficial effects:
[0018] 1. By setting up a support rod, annular ring, telescopic groove, telescopic rod and adjusting nut, the user can rotate the adjusting nut to make the threaded column slide on the annular ring. At this time, the telescopic rod will slide inside the telescopic groove to change the distance between the annular ring and the retaining ring, thereby facilitating the installation of filter bag bodies of different lengths, making it convenient to use, and further increasing the flexibility of the device in use.
[0019] 2. By setting up a retaining ring, a collar, an arc-shaped top block, and a fastening nut, the filter bag body can be first fitted onto the outside of the support rod and the telescopic rod during installation, with the retaining ring at the top entering the collar. Then, the fastening nut is rotated to make its inner wall contact the outer wall of the arc-shaped top block, thereby applying force to make the pin enter the slot, achieving the effect of installing the filter bag body. This design structure, through the limiting of the fastening nut, can make the installation of the filter bag body more secure and prevent loosening.
[0020] 3. By setting an external plate, guide rod, reciprocating electric push rod and air outlet pipe, the flue gas filtered by the filter bag body will continue to flow upward and be discharged from the air outlet pipe, while the dust will remain on the outer wall of the filter bag body. During cleaning, the reciprocating electric push rod can be controlled to drive the mounting plate and filter bag body to vibrate up and down, so as to achieve the effect of cleaning the dust and facilitate subsequent use. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a combined filter bag in its unused state.
[0022] Figure 2 A schematic diagram showing the installation of the support rod, telescopic rod, retaining ring, threaded post, and adjusting nut on the mounting plate;
[0023] Figure 3 for Figure 2 A partial schematic diagram of region A in the middle;
[0024] Figure 4 Exploded view of the mounting plate for the collar, pin, and curved top block;
[0025] Figure 5 This is a schematic diagram showing the positions of the retaining rings and slots on the filter bag body.
[0026] In the diagram: 1. Mounting plate; 2. Support rod; 3. Annular ring; 4. Telescopic groove; 5. Telescopic rod; 6. Retaining ring; 7. Threaded post; 8. Adjusting nut; 9. Filter bag body; 10. Snap ring; 11. Collar; 12. Groove; 13. Pin; 14. Slot; 15. Arc-shaped top block; 16. Connecting spring; 17. Fastening nut; 18. Guide rod; 19. External plate; 20. Return spring; 21. Reciprocating electric push rod; 22. Ear plate; 23. Air outlet pipe; 24. Limiting block. Detailed Implementation
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0030] Please see Figure 1-5 A modular filter bag includes an mounting plate 1. A support rod 2 is fixedly mounted on the bottom of the mounting plate 1. Multiple support rods 2 are arranged in a circular pattern. An annular ring 3 is fixedly mounted on the bottom of the support rod 2. A telescopic groove 4 is formed on the lower end face of the annular ring 3. Multiple telescopic grooves 4 are provided, all communicating with the interior of the support rod 2. A telescopic rod 5 is slidably mounted inside each telescopic groove 4. A retaining ring 6 is fixedly mounted on the bottom of the telescopic rod 5. A threaded post 7 is fixedly mounted on the upper end face of the retaining ring 6. Multiple threaded posts 7 are provided, all movably installed with the annular ring 3. Each threaded post 7 is provided with an adjusting nut 8. Two sets of adjusting nuts 8 are provided, contacting the upper and lower ends of the annular ring 3 respectively. A filter bag body 9 is sleeved on the outer side of the support rod 2 and the telescopic rod 5. A retaining ring 10 is fixedly mounted on the upper end of the filter bag body 9.
[0031] In this embodiment, a collar 11 is fixedly provided on the lower end face of the mounting plate 1. The outer wall of the retaining ring 10 contacts the inner wall of the collar 11. A groove 12 is provided on the outer wall of the collar 11. Multiple grooves 12 are provided, and each groove 12 has a sliding pin 13. A slot 14 is correspondingly provided on the outer wall of the retaining ring 10. One end of each pin 13 passes through the groove 12 and is located inside the slot 14. An arc-shaped top block 15 is fixedly provided on the other end of each pin 13. A connecting spring 16 is fixedly provided between the arc-shaped top block 15 and the groove 12. A fastening nut 17 is provided on the outer wall of the collar 11. The fastening nut 17 is threadedly connected to the outer wall of the collar 11. The outer wall of the arc-shaped top block 15 contacts the inner wall of the fastening nut 17.
[0032] More specifically, the user can rotate the adjusting nut 8 to make the threaded post 7 slide on the annular ring 3. At this time, the telescopic rod 5 will slide inside the telescopic groove 4 to change the distance between the annular ring 3 and the retaining ring 6, thereby facilitating the installation of filter bag bodies 9 of different lengths. When installing the filter bag body 9, it can first be fitted onto the outside of the support rod 2 and the telescopic rod 5, and the retaining ring 10 at its upper end can be inserted into the collar 11. Then, the fastening nut 17 can be rotated to make its inner wall contact the outer wall of the arc-shaped top block 15, thereby applying force to make the pin 13 enter the slot 14, thus achieving the effect of installing the filter bag body 9 and preventing loosening.
[0033] Please see Figure 1 and Figure 4 As an implementation method for oscillating and dust removal of the filter bag body 9: guide rods 18 are fixedly provided on the upper end face of the mounting plate 1 at each of the four corners. An outer plate 19 is slidably provided on the guide rods 18. A return spring 20 is fixedly provided on the lower end face of the outer plate 19 at each of the four corners. The other end of the return spring 20 is fixedly connected to the upper end face of the mounting plate 1. A reciprocating electric push rod 21 is fixedly provided on the upper end face of the outer plate 19 at one side. The output end of the reciprocating electric push rod 21 is fixedly connected to the mounting plate 1. Ear plates 22 are fixedly provided on both sides of the outer plate 19. A limiting block 24 is provided on the upper end of each guide rod 18.
[0034] Specifically, the flue gas filtered by the filter bag body 9 will continue to flow upward and be discharged from the exhaust pipe 23. The dust will remain on the outer wall of the filter bag body 9. When cleaning, the reciprocating electric push rod 21 can be controlled to drive the mounting plate 1 and the filter bag body 9 to vibrate up and down, so as to achieve the effect of cleaning the dust and facilitate subsequent use.
[0035] Please refer to Figure 1 As a further embodiment for venting the gas inside the filter bag body 9: an air outlet pipe 23 is fixedly provided on the upper end face of the mounting plate 1, and the air outlet pipe 23 is slidably installed with the outer plate 19.
[0036] Specifically, the purified gas will be discharged from the exhaust pipe 23 for easy use.
[0037] In summary, when using the overall equipment: the user can rotate the adjusting nut 8 to allow the threaded column 7 to slide on the annular ring 3. At this time, the telescopic rod 5 will slide inside the telescopic groove 4 to change the distance between the annular ring 3 and the retaining ring 6, thereby facilitating the installation of filter bag bodies 9 of different lengths. During installation, it can first be fitted onto the outside of the support rod 2 and the telescopic rod 5, and its upper end retaining ring 10 should be inserted into the collar 11. Then, the fastening nut 17 should be rotated to make its inner wall contact the outer wall of the arc-shaped top block 15, thereby providing internal... The force is applied to make the pin 13 enter the slot 14, thereby installing the filter bag body 9 and preventing loosening. When using this device, the flue gas will continue to float upward after being filtered by the filter bag body 9 and will be discharged from the exhaust pipe 23. At the same time, dust will remain on the outer wall of the filter bag body 9. During cleaning, the reciprocating electric push rod 21 can be controlled to make its output end drive the mounting plate 1 and the filter bag body 9 to vibrate up and down, thereby cleaning the dust and facilitating subsequent use and reducing the frequency of cleaning.
[0038] In this utility model, the operation of related electrical components such as motors and electric push rods can be controlled by a PLC control system according to a set program. The specific working process and working principle of this utility model have been described in detail. Based on the above working process and working principle, those skilled in the art should know the specific circuit connection relationship and implement it through existing technology. Furthermore, the circuit connection relationship between related electrical components and the specific driver program are not the subject of protection of this utility model, and this utility model will not elaborate on them.
[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A combined filter bag, comprising an mounting plate (1), characterized in that: The bottom of the mounting plate (1) is fixedly provided with a support rod (2). Multiple support rods (2) are provided and arranged in a circular shape. An annular ring (3) is fixedly provided at the bottom of the support rod (2). A telescopic groove (4) is provided on the lower end face of the annular ring (3). Multiple telescopic grooves (4) are provided and all communicate with the interior of the support rod (2). Telescopic rods (5) are slidably provided inside the telescopic grooves (4). A retaining ring (6) is fixedly provided at the bottom of the telescopic rod (5). A threaded column (7) is fixedly provided on the upper end face of the retaining ring (6). Multiple threaded columns (7) are provided and all are movably installed with the annular ring (3). An adjusting nut (8) is provided on each threaded column (7). Two sets of adjusting nuts (8) are provided and respectively contact the upper and lower ends of the annular ring (3). A filter bag body (9) is sleeved on the outside of the support rod (2) and the telescopic rod (5). A retaining ring (10) is fixedly provided on the upper end of the filter bag body (9).
2. The combined filter bag according to claim 1, characterized in that: The lower end face of the mounting plate (1) is fixedly provided with a collar (11). The outer wall of the retaining ring (10) is in contact with the inner wall of the collar (11). A groove (12) is provided on the outer wall of the collar (11). Multiple grooves (12) are provided, and each groove (13) is slidably provided inside. A slot (14) is correspondingly provided on the outer wall of the retaining ring (10). One end of each pin (13) passes through the groove (12) and is located inside the slot (14).
3. A combined filter bag according to claim 2, characterized in that: The other end of each pin (13) is fixedly provided with an arc-shaped top block (15), and a connecting spring (16) is fixedly provided between the arc-shaped top block (15) and the groove (12). A fastening nut (17) is provided on the outer wall of the collar (11), and the fastening nut (17) is threadedly connected to the outer wall of the collar (11). The outer wall of the arc-shaped top block (15) is in contact with the inner wall of the fastening nut (17).
4. A combined filter bag according to claim 1, characterized in that: The mounting plate (1) has guide rods (18) fixedly installed on its upper end surface and at each of its four corners. An outer plate (19) is slidably installed on the guide rods (18). A reset spring (20) is fixedly installed on the lower end surface of the outer plate (19) and at each of its four corners. The other end of the reset spring (20) is fixedly connected to the upper end surface of the mounting plate (1).
5. A combined filter bag according to claim 4, characterized in that: A reciprocating electric push rod (21) is fixedly provided on the upper surface of the outer plate (19) and on one side, and the output end of the reciprocating electric push rod (21) is fixedly connected to the mounting plate (1).
6. A combined filter bag according to claim 4, characterized in that: Ear plates (22) are fixedly provided on both sides of the outer plate (19).
7. A combined filter bag according to claim 4, characterized in that: The upper end face of the mounting plate (1) is fixedly provided with an air outlet pipe (23), and the air outlet pipe (23) is slidably installed with the outer plate (19).
8. A combined filter bag according to claim 4, characterized in that: Each guide rod (18) is provided with a limiting block (24) at its upper end.
