Quick-release filter bag structure

CN224598948UActive Publication Date: 2026-08-07ANHUI WEINENG ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI WEINENG ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-24
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0003]目前滤袋主要由袋身、袋口和袋底三部分组成,而滤袋运行时,受积灰重力长期压迫,其底部的袋底易因疲劳出现破损的情况,由于袋底和袋身是缝合固定在一起的,因而在进行更换时,工作人员只能将滤袋的整体进行更换,从而会造成材料浪费,为此,我们提出一种快拆式滤袋结构来解决上述问题

Benefits of technology

[0013]1、该装置通过设置有移动板和第一螺杆,在使用时,工作人员可通过转动转动块,从而即可实现对损坏袋底的快速拆卸并更换,无需将完好的袋身的一同的丢弃掉,因而可有效减少资源的浪费,且可有效降低维护成本。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a quick detachable filter bag structure relates to filter bag technical field, including the bag body, the top fixed suture of bag body has the bag mouth, the bottom of bag body is equipped with the bag bottom, the top of bag bottom is equipped with the first connecting ring, the bottom of bag body is equipped with the second connecting ring, and the inside symmetry of second connecting ring is equipped with the accommodation slot hole, the inner wall of accommodation slot hole is connected with first screw rod through bearing. The utility model discloses be provided with moving plate and first screw rod, and the staff can rotate the rotating block, thereby can realize the quick dismounting of damaged bag bottom and replacement, need not discard the bag body of the together of intact, can effectively reduce the waste of resources, and can effectively reduce maintenance cost, is equipped with sealing ring and blocking ring, when using, through the mutual cooperation of sealing ring and blocking ring, can effectively guarantee the sealing property in the abutment process of first connecting ring and second connecting ring, thereby can effectively prevent the overflow condition of dust appearing.
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Description

Technical Field

[0001] This utility model relates to the field of filter bag technology, and in particular to a quick-release filter bag structure. Background Technology

[0002] A filter bag is a bag-shaped filter element made of filter material. When dust-laden gas or liquid passes through the filter bag, dust or impurity particles are blocked by the filter material, while the gas or liquid is discharged through the filter material, thereby achieving the purpose of solid-gas or solid-liquid separation. Filter bags are the core component of dust collectors and other filtration equipment, playing a key role in industrial production, environmental protection and other fields.

[0003] Currently, filter bags mainly consist of three parts: the bag body, the bag opening, and the bag bottom. However, during operation, the filter bag is subjected to long-term pressure from the weight of accumulated dust, and the bottom of the bag is prone to damage due to fatigue. Since the bag bottom and the bag body are sewn together, when replacing the filter bag, the staff can only replace the entire filter bag, which will result in material waste. To address this issue, we propose a quick-release filter bag structure. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick-release filter bag structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick-release filter bag structure includes a bag body, a bag opening fixedly sewn to the top of the bag body, a bag bottom at the bottom of the bag body, a first connecting ring at the top of the bag bottom, a second connecting ring at the bottom of the bag body, and symmetrically arranged receiving slots inside the second connecting ring. The inner wall of the receiving slot is connected to a first screw via a bearing, and the other end of the first screw extends to the outside of the second connecting ring and is connected to a rotating block. A movable plate is sleeved on the outside of the first screw, and a limit block is fixedly connected to the bottom of the movable plate. An L-shaped groove is formed at the top of the first connecting ring.

[0007] Preferably, a guide plate is fixedly connected to the inner wall of the receiving slot, and a rectangular slot adapted to the guide plate is opened inside the movable plate.

[0008] Preferably, a sealing ring is fixedly connected to the bottom end of the second connecting ring, and a sealing groove adapted to the sealing ring is provided on the top of the first connecting ring.

[0009] Preferably, a barrier ring is fixedly connected to the outer side of the sealing ring, and the cross-section of the barrier ring is set as a semi-circular structure.

[0010] Preferably, the first connecting ring and the second connecting ring are respectively fixedly connected to the opposite sides of each other, and the cross-section of the abutment ring is set as a trapezoidal structure.

[0011] Preferably, the second connecting ring has a circular groove on its side, and the cross-sectional area of ​​the circular groove is larger than that of the rotating block.

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

[0013] 1. This device, equipped with a movable plate and a first screw, allows workers to quickly disassemble and replace damaged bag bottoms by rotating the rotating block, eliminating the need to discard intact bag bodies. This effectively reduces resource waste and lowers maintenance costs.

[0014] 2. By incorporating a sealing ring and a blocking ring, the device effectively ensures a tight seal during the contact process between the first and second connecting rings, thereby preventing dust from escaping and ensuring the reliability of the filtration process. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a quick-release filter bag structure proposed in this utility model.

[0016] Figure 2 for Figure 1 A three-dimensional cross-sectional diagram of the bag body and abutment ring structure;

[0017] Figure 3 for Figure 1 A three-dimensional cross-sectional view of the bag bottom and the second connecting ring structure in the middle;

[0018] Figure 4 for Figure 1 A three-dimensional cross-sectional schematic diagram of the sealing ring and limiting block structure in the middle;

[0019] Figure 5 for Figure 1 A three-dimensional cross-sectional diagram of the accommodating slots and movable plate structure.

[0020] In the diagram: 1. Bag body; 2. Bag opening; 3. Bag bottom; 4. First connecting ring; 5. Second connecting ring; 6. Receiving slot; 7. First screw; 8. Moving plate; 9. Rotating block; 10. Limiting block; 11. L-shaped groove; 12. Guide plate; 13. Sealing ring; 14. Abutment ring; 15. Barrier ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-5 A quick-release filter bag structure includes a bag body 1, a bag opening 2 fixedly sewn to the top of the bag body 1, a bag bottom 3 at the bottom of the bag body 1, and a first connecting ring 4 at the top of the bag bottom 3. The bag body 1, bag opening 2, and bag bottom 3 together form a filter bag in the prior art, which is usually inserted into a filter basket for filtration. A second connecting ring 5 is provided at the bottom end of the bag body 1, and the interior of the second connecting ring 5 has symmetrically opened receiving slots 6. The inner wall of the receiving slots 6 is connected to a first screw 7 via a bearing, and the other end of the first screw 7 extends to the outside of the second connecting ring 5 and is connected to a... The rotating block 9 has a movable plate 8 sleeved on the outside of the first screw 7, and the bottom end of the movable plate 8 is fixedly connected to the limit block 10. The first connecting ring 4 and the second connecting ring 5 can be made of hard materials such as metal, so as to accommodate the first screw 7 and the movable plate 8. The top of the first connecting ring 4 is provided with an L-shaped groove 11, and the inside of the movable plate 8 is provided with a threaded groove that matches the first screw 7. Through the threaded engagement of the first screw 7 and the movable plate 8, the movable plate 8 can move laterally inside the receiving slot 6, thus satisfying the quick-release function of the bag bottom 3.

[0023] Furthermore, refer to Figure 4 It can be seen that the inner wall of the receiving slot 6 is fixedly connected to the guide plate 12, and the inside of the moving plate 8 is provided with a rectangular slot that matches the guide plate 12. The length of the guide plate 12 and the rectangular slot is less than that of the moving plate 8. Through the cooperation of the moving plate 8 and the rectangular slot, the moving plate 8 can be limited and guided during the lateral movement to ensure the accuracy of the cooperation.

[0024] Furthermore, refer to Figure 4 It can be seen that the bottom end of the second connecting ring 5 is fixedly connected to the sealing ring 13, and the top of the first connecting ring 4 is provided with a sealing groove that matches the sealing ring 13. The sealing ring 13 has good elasticity and deformation ability. When it is fastened into the inside of the sealing groove, it can fill the tiny gaps in the connection surface, forming a tight sealing barrier, effectively preventing unfiltered dust-laden gas from leaking from the connection and ensuring filtration efficiency.

[0025] Furthermore, refer to Figure 4 and Figure 5 It can be seen that a barrier ring 15 is fixedly connected to the outside of the sealing ring 13, and the cross-section of the barrier ring 15 is set as a semi-circular structure. Through the semi-circular barrier ring 15, a physical barrier can be formed on the outside of the sealing ring 13 to intercept unfiltered gas and liquid again.

[0026] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the first connecting ring 4 and the second connecting ring 5 are respectively fixedly connected to the side away from each other, and the cross section of the abutment ring 14 is set as a trapezoidal structure. Through the abutment ring 14 set by the trapezoidal structure, the gas and liquid can be guided to effectively prevent them from accumulating above the second connecting ring 5.

[0027] Furthermore, refer to Figure 4 and Figure 5 It can be seen that the second connecting ring 5 has a circular groove on its side, and the cross-sectional area of ​​the circular groove is larger than that of the rotating block 9. The rotating block 9 can be accommodated through the circular groove with a larger cross-sectional area, thereby effectively preventing the rotating block 9 from protruding, so as to ensure that the bag body 1 and the bag bottom 3 are properly inserted into the filter basket.

[0028] Working Principle: When using this utility model, the operator can first place the bag body 1 into the filter basket inside the dust collector. Through the cooperation of the bag body 1, bag opening 2, and bag bottom 3, dust or impurity particles can be intercepted. After long-term use, the operator will pull the device out of the filter basket. In addition, when the bag bottom 3 is damaged, the operator can rotate the rotating block 9 in sequence, which will drive the first screw 7 to rotate simultaneously, so that it engages with the moving plate 8. This will drive the limiting block 10 to move laterally inside the L-shaped groove 11 opened at the top of the first connecting ring 4. When the outer wall of the moving plate 8 away from the rotating block 9 abuts against the inner wall of the L-shaped groove 11, the positioning of the first connecting ring 4 can be released. After the rotation of the two sets of rotating blocks 9 is completed, the operator can pull the first connecting ring 4, which can separate it from the second connecting ring 5, so as to quickly disassemble the damaged bag bottom 3 and reuse the intact bag body 1 and bag opening 2. The above is the complete working principle of this utility model.

[0029] In this utility model, the installation, connection or setting methods of all the above components are common mechanical methods, and the specific structure, model and coefficient index of all its components are its own technology. As long as it can achieve its beneficial effect, it can be implemented, so it will not be described in detail.

[0030] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0031] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A quick-release filter bag structure, comprising a bag body (1), characterized in that, The top of the bag body (1) is fixedly sewn with a bag opening (2), the bottom of the bag body (1) is provided with a bag bottom (3), the top of the bag bottom (3) is provided with a first connecting ring (4), the bottom of the bag body (1) is provided with a second connecting ring (5), and the interior of the second connecting ring (5) is symmetrically provided with receiving slots (6). The inner wall of the receiving slot (6) is connected to a first screw (7) through a bearing, and the other end of the first screw (7) extends to the outside of the second connecting ring (5) and is connected to a rotating block (9). The outer side of the first screw (7) is fitted with a moving plate (8), and the bottom end of the moving plate (8) is fixedly connected to a limit block (10). The top of the first connecting ring (4) is provided with an L-shaped groove (11).

2. The quick-release filter bag structure according to claim 1, characterized in that, The inner wall of the receiving slot (6) is fixedly connected to a guide plate (12), and the inside of the movable plate (8) is provided with a rectangular slot that matches the guide plate (12).

3. The quick-release filter bag structure according to claim 1, characterized in that, The bottom end of the second connecting ring (5) is fixedly connected to a sealing ring (13), and the top of the first connecting ring (4) is provided with a sealing groove that matches the sealing ring (13).

4. The quick-release filter bag structure according to claim 3, characterized in that, A barrier ring (15) is fixedly connected to the outside of the sealing ring (13), and the cross section of the barrier ring (15) is set as a semi-circular structure.

5. The quick-release filter bag structure according to claim 1, characterized in that, The first connecting ring (4) and the second connecting ring (5) are respectively fixedly connected to the side away from each other by an abutment ring (14), and the cross section of the abutment ring (14) is set as a trapezoidal structure.

6. The quick-release filter bag structure according to claim 1, characterized in that, The second connecting ring (5) has a circular groove on its side, and the cross-sectional area of ​​the circular groove is larger than that of the rotating block (9).