Device for replacing and lifting dust collecting bag

By designing a lifting device that includes a sealing column, a slide groove, a trapezoidal slider, and a servo motor, the problems of unstable connection and large space occupation of traditional devices are solved, enabling rapid fixing and angle adjustment, thus improving production efficiency and safety.

CN223774530UActive Publication Date: 2026-01-09HENAN DICHENG ENVIRONMENTAL PROTECTION TECH CO LTD +1
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Patent Information

Application Number
CN202423181943.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2026-01-09
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

Traditional dust collector bag replacement lifting devices are unstable, inconvenient to operate, and take up a lot of space, affecting production efficiency and safety.

Method used

A lifting device comprising a sealing column, a sliding groove, a trapezoidal slider, a disc-shaped slider, and a servo motor was designed. It achieves rapid fixing and angle adjustment through elastic potential energy and an electric telescopic rod, reducing space occupation.

Benefits of technology

It improves the connection efficiency of dust collector bags, reduces equipment downtime, saves space, reduces maintenance costs and safety risks, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dust collecting bag replacing and lifting device, which relates to the field of lifting devices and comprises a sealing column, a groove is arranged inside the sealing column, a sliding groove is arranged on the outer surface of the sealing column, one end of the sliding groove is fixedly connected with a sealing baffle plate, and one side of the outer surface of the sealing baffle plate is fixedly connected with a compression spring. The end, away from the sealing baffle, of the compression spring is fixedly connected with a trapezoidal sliding block. The dust collecting bag has the advantages that when the dust collecting bag is replaced, the dust collecting bag is mounted, the sealing column is moved downwards, so that a groove in the sealing column is in contact with the fixing block and continues to move downwards, the fixing block is in contact with the trapezoidal sliding block, the compression spring performs compression, and elastic potential energy is stored; the trapezoidal sliding block moves towards the interior of the sealing column under the influence of elastic potential energy of the compression spring, so that the trapezoidal sliding block is in contact with the bottom of the fixed block, the fixed block is fixed, and at the moment, the dust collection bag can be fixed.
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Description

Technical Field

[0001] This utility model relates to the field of lifting devices, and in particular to a dust collector bag replacement lifting device. Background Technology

[0002] In the operation and maintenance of baghouse dust collectors, the replacement of filter bags is crucial and frequent. Traditional filter bag lifting devices often use simple hooks or clamps to connect to the filter bags, resulting in unstable connections, inconvenient operation, and low connection efficiency. In complex industrial environments, due to limited space and diverse bag installation locations, the connecting parts of traditional lifting devices cannot be quickly and accurately adapted to the bag connection points, requiring operators to make repeated adjustments, consuming a lot of time and effort. This not only prolongs the bag replacement cycle but also increases equipment downtime, reduces production efficiency, and causes significant economic losses to enterprises. Therefore, it is necessary to design a new type of lifting device to improve the connection efficiency with the dust collector bags. In industrial waste gas treatment, baghouse dust collectors are widely used, and their dust collector bags need to be replaced regularly. Corresponding lifting devices for replacement are indispensable. However, existing dust collector bag replacement lifting devices often do not fully consider the space occupation problem when idle. In actual industrial production scenarios, workshop space is usually limited and compact. Large lifting devices still occupy a lot of space when not performing bag replacement operations. This not only affects the layout adjustment of other equipment in the workshop and the passage of personnel, but may also make the lifting device itself susceptible to collision damage due to the cramped space, increasing equipment maintenance costs and safety risks, and reducing the space utilization and work efficiency of the entire production environment. Therefore, it is necessary to improve it to achieve space saving when idle.

[0003] Therefore, in order to address the above problems, a utility model of a dust collector bag replacement and lifting device is proposed to solve the aforementioned issues. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a dust collector bag replacement and lifting device.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is a dust collector bag replacement and lifting device, including a sealing column, a groove inside the sealing column, a sliding groove on the outer surface of the sealing column, a sealing baffle fixedly connected to one end of the sliding groove, a compression spring fixedly connected to one side of the outer surface of the sealing baffle, a trapezoidal slider fixedly connected to the end of the compression spring away from the sealing baffle, a support column fixedly connected to the side of the trapezoidal slider near the sealing baffle, a limit block fixedly connected to the end of the support column away from the trapezoidal slider, a fixing block provided directly below the groove inside the sealing column, a fixing column fixedly connected to the bottom of the fixing block, a disc-shaped slider slidably connected to the outer surface of the fixing column, and a second connecting block fixedly connected to the end of the fixing column away from the fixing block.

[0006] As a further embodiment of this utility model: a first connecting block is fixedly connected to the top of the sealing column, a first pull rope is fixedly connected to the end of the first connecting block away from the sealing column, a rotating disk is fixedly connected to the end of the first pull rope away from the first connecting block, and a limit sleeve is fixedly connected to the outer surface of the rotating disk.

[0007] As a further embodiment of this utility model: a rotating column is fixedly connected to the outer surface of the rotating disk, the output end of a servo motor is fixedly connected to the rotating column, an electric telescopic rod is fixedly connected to the side of the servo motor away from the rotating column, a support rod is fixedly connected to the end of the electric telescopic rod away from the servo motor, and a base is fixedly connected to the end of the support rod away from the base.

[0008] As a further embodiment of this utility model: a connecting plate is fixedly connected to the bottom of the second connecting block, and a plurality of second pull ropes are fixedly connected to the bottom of the connecting plate. A dust removal bag is fixedly connected to the end of the second pull rope away from the connecting plate.

[0009] As a further embodiment of this utility model: one side of the outer surface of the trapezoidal slider is tapered from top to bottom, the outer surface of the fixing block is tapered from bottom to top, and the outer surface of the disc-shaped slider is tapered from the middle to both ends.

[0010] As a further embodiment of this utility model: the outer surface of the sealing column is fixedly connected to the outer surface of two sealing baffles, the second connecting block is similar in size to the groove inside the sealing column, and the maximum radius of the disc-shaped slider is the same as the maximum radius of the fixed block.

[0011] As a further embodiment of this utility model: the outer surface of the limiting sleeve is provided with a rope outlet hole, and the first pull rope is sleeved inside the rotating disk.

[0012] The above technical solution is as follows: When replacing the dust collector bag, the dust collector bag is installed by moving the sealing column downwards until the inner groove of the sealing column contacts the fixing block. Moving downwards further, the fixing block contacts the trapezoidal slider. The compression spring compresses, storing elastic potential energy. When the trapezoidal slider no longer contacts the fixing block, it moves inwards under the influence of the elastic potential energy of the compression spring, contacting the bottom of the fixing block and thus securing the dust collector bag. When disassembling the dust collector bag, the sealing column continues to move downwards until it contacts the bottom of the disc-shaped slider. Moving upwards again, the sealing column, due to the elastic potential energy, causes the trapezoidal slider to engage with the disc-shaped slider. The trapezoidal slider then moves the disc-shaped slider upwards. When the disc-shaped slider aligns with the fixing block, the special appearance of the fixing block and the disc-shaped slider allows the trapezoidal slider to slide out along the outer surface of the fixing block, thus completing the disassembly of the dust collector bag.

[0013] The first pull rope makes it easier to adjust the angle of the dust collector bag, and when retracted, it increases the usable space in the factory. The servo motor enables the device to be raised and lowered freely, and the electric telescopic rod enables the device to adjust the angle and move the position of the dust collector bag. When the dust collector bag is not needed, the electric telescopic rod retracts, and the servo motor drives the first pull rope to retract, saving usable space in the factory. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall appearance of a dust collector bag replacement and lifting device;

[0015] Figure 2 A schematic diagram of the lifting structure of a dust collector bag replacement lifting device;

[0016] Figure 3 A detailed schematic diagram of the lifting structure of a dust collector bag replacement lifting device;

[0017] Figure 4 A cross-sectional schematic diagram of the lifting connection structure of a dust collector bag replacement lifting device.

[0018] In the diagram: 1. Base; 2. Support rod; 3. Electric telescopic rod; 4. Servo motor; 5. Rotating column; 6. Rotating disk; 7. First pull rope; 8. Limiting sleeve; 9. First connecting block; 10. Sealing column; 11. Limiting block; 12. Support column; 13. Sealing baffle; 14. Trapezoidal slider; 15. Compression spring; 16. Slide groove; 17. Fixing block; 18. Fixing column; 19. Disc slider; 20. Second connecting block; 21. Connecting disk; 22. Second pull rope; 23. Dust collector bag. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] Example 1

[0021] Please see Figures 2-4 This utility model provides a technical solution: it includes a sealing column 10, a groove is provided inside the sealing column 10, a sliding groove 16 is provided on the outer surface of the sealing column 10, a sealing baffle 13 is fixedly connected to one end of the sliding groove 16, a compression spring 15 is fixedly connected to one side of the outer surface of the sealing baffle 13, a trapezoidal slider 14 is fixedly connected to the end of the compression spring 15 away from the sealing baffle 13, a support column 12 is fixedly connected to the side of the trapezoidal slider 14 close to the sealing baffle 13, a limit block 11 is fixedly connected to the end of the support column 12 away from the trapezoidal slider 14, a fixing block 17 is provided directly below the groove inside the sealing column 10, a fixing column 18 is fixedly connected to the bottom of the fixing block 17, a disc-shaped slider 19 is slidably connected to the outer surface of the fixing column 18, and a second connecting block 20 is fixedly connected to the end of the fixing column 18 away from the fixing block 17.

[0022] When replacing the dust collector bag 23, the dust collector bag 23 is installed by moving the sealing column 10 downwards until the inner groove of the sealing column 10 contacts the fixing block 17. Continuing to move downwards, the fixing block 17 contacts the trapezoidal slider 14. At this point, the trapezoidal slider 14 is forced to move into the groove 16, pushing the compression spring 15 to compress. The compression spring 15, constrained by the sealing baffle 13, stores elastic potential energy. The trapezoidal slider 14 pushes the support column 12 to move, and the support column 12 pushes the limiting block 11 to move. When the trapezoidal slider 14 is no longer in contact with the fixing block 17, the trapezoidal slider 14, influenced by the elastic potential energy of the compression spring 15, moves into the sealing column 10, causing the trapezoidal slider 14 to contact the bottom of the fixing block 17, thus completing the sealing process. With block 17 fixed, the dust collector bag 23 can be fixed and moved. When the dust collector bag 23 is replaced, the sealing post 10 continues to move downward, so that the trapezoidal slider 14 contacts the disc slider 19. It continues to move downward until it contacts the bottom of the disc slider 19. At this time, the sealing post 10 is moved upward. Due to the influence of elastic potential energy, the trapezoidal slider 14 jams the disc slider 19. Since the disc slider 19 is slidably connected to the fixing post 18, the trapezoidal slider 14 drives the disc slider 19 to move upward. When the disc slider 19 coincides with the fixing block 17, due to the special appearance of the fixing block 17 and the disc slider 19, the trapezoidal slider 14 slides out along the outer surface of the fixing block 17 through the disc slider 19, so that the dust collector bag 23 is disassembled.

[0023] Example 2

[0024] Please see Figures 1-4 The present invention provides a technical solution: a first connecting block 9 is fixedly connected to the top of the sealing column 10, a first pull rope 7 is fixedly connected to the end of the first connecting block 9 away from the sealing column 10, a rotating disk 6 is fixedly connected to the end of the first pull rope 7 away from the first connecting block 9, and a limit sleeve 8 is fixedly connected to the outer surface of the rotating disk 6.

[0025] The angle of the dust collector bag 23 can be adjusted more easily by using the first pull rope 7, and it can increase the usable space in the factory when it is retracted.

[0026] Please see Figures 1-3 A rotating column 5 is fixedly connected to the outer surface of the rotating disk 6. The output end of the servo motor 4 is fixedly connected to the rotating column 5. An electric telescopic rod 3 is fixedly connected to the side of the servo motor 4 away from the rotating column 5. A support rod 2 is fixedly connected to the end of the electric telescopic rod 3 away from the servo motor 4. The base 1 is fixedly connected to the end of the support rod 2 away from the base 1.

[0027] The device can be freely raised and lowered by the operation of the servo motor 4. The angle and position of the dust collector bag 23 can be adjusted by the electric telescopic rod 3. When the dust collector bag 23 is not needed, the electric telescopic rod 3 retracts and the servo motor 4 drives the first pull rope 7 to retract, saving the factory's usable space.

[0028] Example 3

[0029] Please see Figures 1-4 This utility model provides a technical solution: a connecting plate 21 is fixedly connected to the bottom of the second connecting block 20, and a plurality of second pull ropes 22 are fixedly connected to the bottom of the connecting plate 21. A dust removal bag 23 is fixedly connected to the end of the second pull rope 22 away from the connecting plate 21. The outer surface of the trapezoidal slider 14 is tapered from top to bottom on one side. The outer surface of the fixing block 17 is tapered from bottom to top as a whole. The outer surface of the disc slider 19 is tapered from the middle to both ends as a whole. The outer surface of the sealing column 10 is fixedly connected to the outer surface of two sealing baffles 13. The grooves in the second connecting block 20 and the sealing column 10 are similar in size. The maximum radius of the disc slider 19 is the same as the maximum radius of the fixing block 17. The outer surface of the limiting sleeve 8 is provided with a rope outlet hole. The rotating disk 6 is sleeved inside the first pull rope 7.

[0030] The special shape inside the device structure allows for quick installation, disassembly, and fixation of the dust collector bag 23 during operation. The rope outlet hole on the outer surface of the limiting sleeve 8 ensures that the first pull rope 7 always descends or rises in one direction, making the device more stable during operation.

[0031] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A dust collector bag replacement and lifting device, comprising a sealing column (10), wherein a groove is provided inside the sealing column (10), and a sliding groove (16) is provided on the outer surface of the sealing column (10). A sealing baffle (13) is fixedly connected to one end of the sliding groove (16), and a compression spring (15) is fixedly connected to one side of the outer surface of the sealing baffle (13). A trapezoidal slider (14) is fixedly connected to the end of the compression spring (15) away from the sealing baffle (13). The trapezoidal slider (14) is close to the sealing baffle. A support column (12) is fixedly connected to one side of the plate (13). A limit block (11) is fixedly connected to one end of the support column (12) away from the trapezoidal slider (14). A fixing block (17) is provided directly below the groove inside the sealing column (10). A fixing column (18) is fixedly connected to the bottom of the fixing block (17). A disc-shaped slider (19) is slidably connected to the outer surface of the fixing column (18). A second connecting block (20) is fixedly connected to one end of the fixing column (18) away from the fixing block (17).

2. The dust collector bag replacement and lifting device according to claim 1, characterized in that: The top of the sealing column (10) is fixedly connected to a first connecting block (9), and the end of the first connecting block (9) away from the sealing column (10) is fixedly connected to a first pull rope (7). The end of the first pull rope (7) away from the first connecting block (9) is fixedly connected to a rotating disk (6), and the outer surface of the rotating disk (6) is fixedly connected to a limit sleeve (8).

3. The dust collector bag replacement and lifting device according to claim 2, characterized in that: A rotating column (5) is fixedly connected to the outer surface of the rotating disk (6). The output end of a servo motor (4) is fixedly connected to the rotating column (5). An electric telescopic rod (3) is fixedly connected to the side of the servo motor (4) away from the rotating column (5). A support rod (2) is fixedly connected to the end of the electric telescopic rod (3) away from the servo motor (4). The base (1) is fixedly connected to the end of the support rod (2) away from the base (1).

4. The dust collector bag replacement and lifting device according to claim 1, characterized in that: The bottom of the second connecting block (20) is fixedly connected to a connecting plate (21), and the bottom of the connecting plate (21) is fixedly connected to a plurality of second pull ropes (22), and the end of the second pull rope (22) away from the connecting plate (21) is fixedly connected to a dust removal bag (23).

5. The dust collector bag replacement and lifting device according to claim 1, characterized in that: The outer surface of the trapezoidal slider (14) is tapered from top to bottom on one side, the outer surface of the fixed block (17) is tapered from bottom to top as a whole, and the outer surface of the disc-shaped slider (19) is tapered from the middle to both ends as a whole.

6. The dust collector bag replacement and lifting device according to claim 1, characterized in that: The outer surface of the sealing column (10) is fixedly connected to the outer surface of two sealing baffles (13). The second connecting block (20) is similar in size to the groove inside the sealing column (10). The maximum radius of the disc slider (19) is the same as the maximum radius of the fixed block (17).

7. The dust collector bag replacement and lifting device according to claim 2, characterized in that: The outer surface of the limiting sleeve (8) is provided with a rope outlet hole, and the rotating disk (6) is sleeved with the first pull rope (7).