Bag-type dust collector convenient for replacing cloth bag

By introducing a limiting mechanism and a sealing groove structure into the bag filter, the disassembly and replacement process of the filter bag is simplified, solving the problem of cumbersome operation in the existing technology, improving maintenance efficiency and ensuring sealing performance.

CN224141771UActive Publication Date: 2026-04-21YANCHENG QIANGWEI ENVIRONMENTAL PROTECTION TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANCHENG QIANGWEI ENVIRONMENTAL PROTECTION TECH
Filing Date
2025-05-21
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing bag filter dust collectors have a cumbersome operation when replacing the filter bags, which affects maintenance efficiency.

Method used

A bag filter dust collector including a limiting mechanism, a sealing groove and a sealing ring was designed. The cover plate can be easily flipped through the handle and the rotating shaft structure. Combined with the assembly mechanism and the internal support frame, the disassembly and replacement process of the filter bag is simplified.

Benefits of technology

It enables convenient disassembly and replacement of the filter bag, improving maintenance efficiency, and enhances sealing performance through sealing grooves and sealing rings to prevent gas leakage.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224141771U_ABST
    Figure CN224141771U_ABST
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Abstract

The utility model relates to the technical field of bag-type dust collectors, and provides a bag-type dust collector convenient for replacing a bag, which comprises a bag-type dust collector main body, one side of the bag-type dust collector main body is fixedly connected with an air inlet pipe, and the other side of the bag-type dust collector main body is fixedly connected with an air outlet pipe. A limiting mechanism is installed on the outer wall of the bag-type dust collector body and comprises a fixing base fixedly installed on the outer wall of the bag-type dust collector body, a rotating shaft is movably connected into the fixing base, a handle is installed on the outer wall of the rotating shaft, and a retaining ring is movably connected into the handle. The limiting mechanism further comprises a rotating rod movably installed on the outer wall of the bag-type dust collector body, and a cover plate is installed on the outer wall of the rotating rod. According to the utility model, the handle can be turned over along the fixed seat by pulling the handle, and the retaining ring is driven to release the downward buckling limiting of the limiting block, so that the cover plate is turned over and opened along the bag-type dust collector main body, and the effect of conveniently disassembling and replacing the dust collecting bag is achieved.
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Description

Technical Field

[0001] This utility model relates to the technical field of baghouse dust collectors, and in particular to a baghouse dust collector that facilitates bag replacement. Background Technology

[0002] Baghouse dust collectors are highly efficient dry dust collection devices widely used in industrial fields and environmental protection. Their operating principle involves dust-laden gas entering the dust collector through the inlet and then passing through the filter bags. The filter bags are the core component of the baghouse dust collector; they have a porous structure. When dust-laden gas passes through the filter bags, dust particles are trapped on the surface of the bags, while the gas is discharged through the pores, thus achieving gas-solid separation.

[0003] To this end, patent CN219848617U discloses a bag filter dust collector, which includes a dust collector chamber and a filtration system. The filtration system can be cleaned by opening the chamber door and using a water gun. Then, by rotating the regulating valve, the connection relationship between the three-way ball and the three-way port of the dust collection port is adjusted. Finally, the upper and lower ports are selected for dust collection, and the upper port is used for drainage, ensuring that the dust in the filtration system can be cleaned while preventing water from entering the conveying system below the dust collection port.

[0004] The existing technical solutions mentioned above have the following drawbacks: Although dust can be cleaned, the cover plate on the top of the bag filter is not easy to open, which means that when the filter bag is replaced, the bolts connecting the cover plate and the bag filter must be removed first. The operation is cumbersome and it is inconvenient to quickly disassemble and replace the filter bag, which affects the efficiency of actual replacement and maintenance. Utility Model Content

[0005] The purpose of this invention is to provide a baghouse dust collector that facilitates bag replacement, thereby solving the problem that existing baghouse dust collectors do not allow for convenient and quick bag disassembly and replacement.

[0006] In order to solve the above-mentioned technical problems, the present invention provides the following technical solution: a bag dust collector that is easy to replace the filter bag, including a bag dust collector body;

[0007] An air inlet pipe is fixedly connected to one side of the main body of the bag filter, and an air outlet pipe is fixedly connected to the other side of the main body of the bag filter.

[0008] A limit mechanism is installed on the outer wall of the main body of the bag filter.

[0009] The limiting mechanism includes a fixed base fixedly installed on the outer wall of the main body of the bag filter. A rotating shaft is movably connected inside the fixed base. A handle is installed on the outer wall of the rotating shaft. A buckle is movably connected inside the handle. The limiting mechanism also includes a rotating rod movably installed on the outer wall of the main body of the bag filter. A cover plate is installed on the outer wall of the rotating rod. A limiting block is fixedly connected to the outer wall of the cover plate.

[0010] Preferably, the main body of the bag filter has a sealing groove inside, and a sealing ring is fixedly connected to the outer wall of the cover plate. The sealing ring is engaged with the main body of the bag filter through the sealing groove, so that the sealing ring can be inserted into the sealing groove for sealing.

[0011] Preferably, the fixed base forms a rotating structure with the handle via a rotating shaft, and the handle forms a rotating structure with the buckle, which allows the handle to rotate along the fixed base.

[0012] Preferably, the main body of the bag filter dust collector forms a rotating structure with the cover plate via a rotating rod, and the limiting block is engaged with the buckle ring, which allows the cover plate to rotate along the main body of the bag filter dust collector.

[0013] Preferably, the inner wall of the bag filter body is equipped with an assembly mechanism, the assembly mechanism including a U-shaped fixing block fixedly installed on the inner wall of the bag filter body, the U-shaped fixing block having a movable groove inside, a locking block being movably connected inside the movable groove, a return spring being fixedly connected to the top of the locking block, a limit plate being installed on the inner wall of the U-shaped fixing block, and a locking groove being opened inside the limit plate.

[0014] Preferably, the U-shaped fixing block forms a sliding structure with the locking block through the movable groove, and the locking block is engaged with the limiting plate through the locking groove, so that the locking block can slide along the movable groove and be retracted into the U-shaped fixing block.

[0015] Preferably, an installation plate is fixedly connected to the inner wall of the main body of the bag filter. The installation plate has a through groove inside, and a dust collector bag is installed inside the through groove. An inner support frame is installed on the inner wall of the dust collector bag. The installation plate is engaged with the dust collector bag through the through groove, which facilitates the disassembly and replacement of the dust collector bag.

[0016] The present invention provides a bag filter dust collector that facilitates bag replacement, and its advantages are as follows:

[0017] The bag filter body, limiting mechanism, sealing groove and sealing ring are designed so that by pulling the handle, the handle can be rotated along the fixed seat, which will drive the buckle to release the lower limit of the limiting block, and the cover plate can be rotated and opened along the bag filter body, which can facilitate the disassembly and replacement of the dust collector bag.

[0018] Furthermore, the combined effect of the sealing groove and the sealing ring can improve the sealing performance when the cover is closed, preventing gas leakage.

[0019] With the assembly mechanism, dust collector bag and internal support frame set up, by pulling the limiting plate, the locking block can be squeezed and slid in along the movable groove, so that the locking block releases the locking plate from the limiting plate, so that the limiting plate moves out of the U-shaped fixing block, so that the limiting plate releases the obstruction of the dust collector bag, and further improves the convenience of disassembling the dust collector bag.

[0020] Furthermore, under the action of the return spring, the locking block can be reset, which facilitates the installation and limiting of the limit plate after the dust collector bag is replaced;

[0021] Furthermore, by pulling the inner support upwards, the inner support can slide out along the inner wall of the dust collector bag. At this time, pulling the dust collector bag upwards facilitates the replacement of the dust collector bag. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 For the present utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0024] Figure 3 This is a perspective view of the main body of the bag filter of this utility model;

[0025] Figure 4 This is a schematic diagram showing the disassembled structure of the dust collector bag of this utility model;

[0026] Figure 5 This is a perspective view of the limiting plate of this utility model;

[0027] Figure 6 This is a schematic diagram showing the disassembled structure of the U-shaped fixing block of this utility model.

[0028] The following are the annotations in the attached figures: 1. Main body of the bag filter; 2. Inlet pipe; 3. Outlet pipe; 4. Limiting mechanism; 41. Fixed base; 42. Rotating shaft; 43. Handle; 44. Buckle ring; 45. Rotating rod; 46. Cover plate; 47. Limiting block; 5. Sealing groove; 6. Sealing ring; 7. Assembly mechanism; 71. U-shaped fixing block; 72. Movable groove; 73. Locking block; 74. Return spring; 75. Limiting plate; 76. Locking groove; 8. Mounting plate; 9. Through groove; 10. Dust collector bag; 11. Internal support frame. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-6 The present invention provides a bag dust collector that facilitates bag replacement, comprising a bag dust collector body 1.

[0031] Reference Figure 1 , Figure 2 and Figure 3 As shown, an inlet pipe 2 is fixedly connected to one side of the bag filter body 1, and an outlet pipe 3 is fixedly connected to the other side of the bag filter body 1. A limiting mechanism 4 is installed on the outer wall of the bag filter body 1. The limiting mechanism 4 includes a fixed base 41 fixedly installed on the outer wall of the bag filter body 1, a rotating shaft 42 movably connected inside the fixed base 41, a handle 43 installed on the outer wall of the rotating shaft 42, and a buckle 44 movably connected inside the handle 43. The limiting mechanism 4 also includes a rotating rod 45 movably installed on the outer wall of the bag filter body 1. A cover plate 46 is installed on the outer wall of the rotating rod 45. A limit block 47 is fixedly connected to the outer wall of the cover plate 46. A sealing groove 5 is opened inside the main body 1 of the bag dust collector. A sealing ring 6 is fixedly connected to the outer wall of the cover plate 46. The sealing ring 6 is engaged with the main body 1 of the bag dust collector through the sealing groove 5. The fixed seat 41 forms a rotating structure with the handle 43 through the rotating shaft 42. The handle 43 forms a rotating structure with the buckle 44. The main body 1 of the bag dust collector forms a rotating structure with the cover plate 46 through the rotating rod 45. The limit block 47 is engaged with the buckle 44.

[0032] By pulling the handle 43, under the action of the rotating shaft 42, the handle 43 can be rotated along the fixed seat 41. Since the handle 43 and the buckle 44 form a rotating structure, the handle 43 can rotate and drive the buckle 44 to release the lower limit of the limiting block 47, and move the buckle 44 away from the limiting block 47. Pulling the cover plate 46, under the action of the rotating rod 45, the cover plate 46 can be rotated and opened along the main body 1 of the bag dust collector, and the sealing ring 6 can be moved out from the sealing groove 5. The dust-laden gas enters the interior of the main body 1 of the bag dust collector through the air inlet pipe 2, and is filtered by the dust collector bag 10, so that the filtered gas is discharged through the air outlet pipe 3.

[0033] Reference Figure 3 , Figure 5 and Figure 6As shown, an assembly mechanism 7 is installed on the inner wall of the bag filter body 1. The assembly mechanism 7 includes a U-shaped fixing block 71 fixedly installed on the inner wall of the bag filter body 1. The U-shaped fixing block 71 has a movable groove 72 inside. A locking block 73 is movably connected inside the movable groove 72. A return spring 74 is fixedly connected to the top of the locking block 73. A limit plate 75 is installed on the inner wall of the U-shaped fixing block 71. A locking groove 76 is opened inside the limit plate 75. The U-shaped fixing block 71 and the locking block 73 form a sliding structure through the movable groove 72. The locking block 73 is engaged with the limit plate 75 through the locking groove 76.

[0034] By pulling the limiting plate 75, the slot 76 can press the spherical end of the block 73, causing the block 73 to slide along the movable slot 72 and press the reset spring 74, thus releasing the block 73 from the limiting plate 75 and causing the limiting plate 75 to move out of the U-shaped fixing block 71.

[0035] Reference Figure 3 and Figure 4 As shown, an installation plate 8 is fixedly connected to the inner wall of the main body 1 of the bag dust collector. A through groove 9 is opened inside the installation plate 8. A dust collector bag 10 is installed inside the through groove 9. An inner support frame 11 is installed on the inner wall of the dust collector bag 10. The installation plate 8 is engaged with the dust collector bag 10 through the through groove 9.

[0036] The limiting plate 75 can be removed to release the top limit of the inner support frame 11. Pulling the inner support frame 11 upwards allows it to slide out along the inner wall of the dust collector bag 10. At this time, pulling the dust collector bag 10 upwards allows it to be removed and replaced.

[0037] 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 bag filter dust collector that is easy to replace the filter bag, comprising a bag filter dust collector body (1); Its features are: An air inlet pipe (2) is fixedly connected to one side of the main body (1) of the bag filter, and an air outlet pipe (3) is fixedly connected to the other side of the main body (1) of the bag filter. A limit mechanism (4) is installed on the outer wall of the main body (1) of the bag filter; The limiting mechanism (4) includes a fixed seat (41) fixedly installed on the outer wall of the bag filter body (1). A rotating shaft (42) is movably connected inside the fixed seat (41). A handle (43) is installed on the outer wall of the rotating shaft (42). A buckle (44) is movably connected inside the handle (43). The limiting mechanism (4) also includes a rotating rod (45) movably installed on the outer wall of the bag filter body (1). A cover plate (46) is installed on the outer wall of the rotating rod (45). A limiting block (47) is fixedly connected to the outer wall of the cover plate (46).

2. The cloth bag precipitator according to claim 1, wherein: The main body (1) of the bag filter has a sealing groove (5) inside, and a sealing ring (6) is fixedly connected to the outer wall of the cover plate (46). The sealing ring (6) is engaged with the main body (1) of the bag filter through the sealing groove (5).

3. The cloth bag precipitator according to claim 1, wherein: The fixed base (41) forms a rotating structure with the handle (43) via the rotating shaft (42), and the handle (43) forms a rotating structure with the buckle (44).

4. The cloth bag precipitator according to claim 1, wherein: The main body (1) of the bag filter is connected to the cover plate (46) by a rotating rod (45), and the limiting block (47) is engaged with the buckle (44).

5. The cloth bag precipitator according to claim 1, wherein: An assembly mechanism (7) is installed on the inner wall of the main body (1) of the bag filter. The assembly mechanism (7) includes a U-shaped fixing block (71) fixedly installed on the inner wall of the main body (1). The U-shaped fixing block (71) has a movable groove (72) inside. A locking block (73) is movably connected inside the movable groove (72). A return spring (74) is fixedly connected to the top of the locking block (73). A limiting plate (75) is installed on the inner wall of the U-shaped fixing block (71). A locking groove (76) is opened inside the limiting plate (75).

6. A cloth bag precipitator for facilitating replacement of the cloth bag according to claim 5, characterized in that: The U-shaped fixing block (71) forms a sliding structure with the locking block (73) through the movable groove (72), and the locking block (73) is engaged with the limiting plate (75) through the locking groove (76).

7. A cloth bag precipitator for facilitating replacement of cloth bags as claimed in claim 1 wherein: The inner wall of the main body (1) of the bag filter is fixedly connected to an installation plate (8). The installation plate (8) has a through groove (9) inside. A dust collector bag (10) is installed inside the through groove (9). An inner support frame (11) is installed on the inner wall of the dust collector bag (10). The installation plate (8) is engaged with the dust collector bag (10) through the through groove (9).

Citation Information

Patent Citations

  • Bag-type dust collector

    CN219848617U