Elastic closing dustproof dust-removing bag
By using a flexible metal sheet and nut structure, combined with Velcro connectors, the problem of time-consuming fixing and dust leakage of dust collector bags is solved, achieving rapid installation and efficient sealing, and improving the stability and service life of dust collector bags.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANCHENG DONGSHUN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-05
AI Technical Summary
Existing methods for securing dust collector bags are time-consuming and difficult, and the openings are not easy to shrink, which can easily lead to dust leakage and affect filtration quality.
It adopts a flexible metal sheet and nut structure, combined with Velcro connectors. The rotation of the nut causes the flexible metal sheet to deform, which moves the arc-shaped clamp closer to the center of the bag. With the help of the flexible sealing ring and sealing ring, it can achieve quick fixation and sealing.
It improves the installation efficiency and stability of dust collector bags, reduces wear, enhances sealing, prevents dust leakage, and extends service life.
Smart Images

Figure CN224321157U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust collector bags, and in particular to a flexible, leak-proof dust collector bag with a snap-fit opening. Background Technology
[0002] Dust collector bags are considered the heart of baghouse dust collectors. They are generally called dust collector bags or dust filter bags and are a key component in the operation of baghouse dust collectors. Typically, cylindrical filter bags are suspended vertically inside the dust collector. The fabric and design of dust collector bags should strive for high-efficiency filtration, easy dust removal, and durability. The selection of dust collector bags is crucial, as it directly affects the dust collection efficiency of the dust collector.
[0003] When using dust collector bags, they need to be placed over the cage frame and then secured at both ends with fasteners such as clamps or straps to ensure a tight fit with the cage frame and prevent gaps or wrinkles that could affect filtration quality.
[0004] However, using clamps or straps to fix dust collector bags is time-consuming and difficult. The clamps need to be precisely aligned with the positioning pins and the bolts need to be tightened evenly. The installation of a single bag takes a long time. The straps need to be wrapped three to five times and kept under tension, making the operation complex. On the other hand, the opening of the dust collector bag is not easy to shrink, which makes it easy for dust to seep into its interior, thus affecting the filtration quality. Utility Model Content
[0005] The purpose of this utility model is to solve the problem that the existing technology of using clamps or straps to fix dust collector bags is time-consuming and difficult. At the same time, the opening of the dust collector bag is not easy to shrink, which easily leads to dust leakage. Therefore, this utility model proposes an elastic-closing dust collector bag to prevent dust leakage.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A flexible, leak-proof dust collector bag includes a filter bag and further comprises: at least two flexible metal sheets mounted on the filter bag, each flexible metal sheet having a threaded groove; one end of each flexible metal sheet being fixedly connected to an arc-shaped clamp; the filter bag having a connector for positioning the flexible metal sheets; a nut threaded onto the flexible metal sheets, wherein when the nut is rotated, the arc-shaped clamp tends to move towards the center of the filter bag; and at least one flexible sealing ring fitted inside the filter bag, wherein at least one flexible sealing ring is installed inside the filter bag.
[0008] In order to install the elastic metal sheet on the filter bag, preferably, the connector includes a hook and loop fastener that is fixedly connected to the filter bag, and the hook and loop fastener has a loop fastener that is fixedly connected to the elastic metal sheet.
[0009] To further increase the installation range of the elastic metal sheet, the hook and loop fastener surface is further designed as a ring structure.
[0010] To improve the anti-slip effect of the nut, preferably, the nut is provided with anti-slip texture, and the nut and the anti-slip texture are integrally formed.
[0011] To reduce wear between the arc-shaped clamp and the filter bag, preferably, a protective pad made of rubber is fixedly connected to the inner arc surface of the arc-shaped clamp.
[0012] To improve the anti-slip effect of the elastic sealing ring, preferably, a protrusion is fixedly connected to the inner arc surface of the elastic sealing ring, and the elastic sealing ring and the protrusion are integrally formed.
[0013] Compared with the prior art, this utility model provides a flexible, leak-proof dust collection bag with the following advantages:
[0014] 1. This elastic-closing, leak-proof dust collector bag, with its connecting parts, facilitates the installation of the elastic metal sheet by the staff, thereby improving the installation efficiency of the filter bag.
[0015] 2. This elastic-sealed dust collector bag, with its protective pad, improves the sealing between the arc-shaped clamp and the filter bag, reduces wear, and extends the service life of the filter bag.
[0016] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model uses an elastic sealing ring and an elastic sealing ring to elastically limit the filter bag while also closing the filter bag to prevent external dust leakage. Furthermore, rotating the nut on the elastic metal sheet can close the elastic metal sheet, causing it to deform and move the arc-shaped clamping plate, thus stably fixing the filter bag to the cage, thereby improving the installation efficiency and stability of the filter bag. Attached Figure Description
[0017] Figure 1 This is an isometric view of the structure of an elastic-closing, leak-proof dust collector bag proposed in this utility model;
[0018] Figure 2 This is a partial cross-sectional view of the elastic-closing dust-proof and leak-proof dust collector bag proposed in this utility model;
[0019] Figure 3 This is a cross-sectional schematic diagram of the filter bag structure of an elastic-closing, leak-proof dust collector bag proposed in this utility model.
[0020] Figure 4This is a schematic diagram of the elastic sealing ring structure of an elastic-sealed dust collector bag that prevents dust leakage and has an elastic opening, as proposed in this utility model.
[0021] Figure 5 This is a partial exploded view of the structure of a dust collector bag with elastic opening and leak-proof design proposed in this utility model.
[0022] Figure 6 This is an isometric schematic diagram of the arc-shaped clamping plate structure of an elastically sealed dust-proof and leak-proof dust collector bag proposed in this utility model.
[0023] In the picture: 1. Filter bag; 2. Elastic metal sheet; 3. Arc-shaped clamp; 4. Nut; 5. Hook and loop fastener; 6. Elastic sealing ring; 7. Elastic sealing ring; 8. Protective pad. Detailed Implementation
[0024] 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.
[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] Example:
[0027] Reference Figures 1-6A flexible, leak-proof dust collector bag includes a filter bag 1 and at least two elastic metal sheets 2, preferably four, mounted on the filter bag 1. The elastic metal sheets 2 have threaded grooves, and one end of each elastic metal sheet 2 is fixedly connected to an arc-shaped clamping plate 3. The filter bag 1 has connectors for positioning the elastic metal sheets 2. Nuts 4 are threaded onto the elastic metal sheets 2, and the nuts 4 have anti-slip textures. The nuts 4 and the anti-slip textures are integrally formed, allowing for easy handling by workers. Rotate the nut 4. When the nut 4 rotates, the arc-shaped clamp 3 tends to move closer to the center of the filter bag 1. At least one elastic sealing ring 6, the number of elastic sealing rings 6 is 1-2, preferably 2, respectively fitted on both ends of the filter bag 1. At least one elastic sealing ring 7 is installed inside the filter bag 1, the number of elastic sealing rings 7 is 1-2, preferably 2, respectively installed on the side of the filter bag 1 near the elastic sealing ring 6. A protrusion is fixedly connected to the inner arc surface of the elastic sealing ring 7. The elastic sealing ring 7 and the protrusion are integrally formed, which can improve the stability of the filter bag 1 fitting connection.
[0028] Specifically, by using the elastic sealing ring 6 and the elastic sealing ring 7 together, the filter bag 1 is elastically limited while the filter bag 1 is also closed to prevent external dust leakage. Furthermore, by rotating the nut 4 on the elastic metal sheet 2, the elastic metal sheet 2 can be closed, causing it to deform and move the arc-shaped clamp 3, thus stably fixing the filter bag 1 to the cage, thereby improving the installation efficiency and stability of the filter bag 1.
[0029] The connector includes a hook and loop fastener 5 fixedly connected to the filter bag 1. The hook and loop fastener 5 has a ring structure, and a hook and loop fastener loop 51 fixedly connected to the elastic metal sheet 2 is glued to the hook and loop fastener 5.
[0030] Specifically, the connectors facilitate the installation of the elastic metal sheet 2 by the staff, thereby improving the installation efficiency of the filter bag 1.
[0031] A rubber protective pad 8 is fixedly connected to the inner arc surface of the arc-shaped clamp 3.
[0032] Specifically, by setting the protective pad 8, the sealing performance of the connection between the arc-shaped clamp 3 and the filter bag 1 can be improved, and wear can be reduced, thereby extending the service life of the filter bag 1.
[0033] Working principle: When installing filter bag 1, the operator first rotates nut 4 to disengage it from the threaded connection with elastic metal sheet 2. Then, filter bag 1 is placed on the cage and moved to the designated position. The elastic contraction force of elastic sealing ring 7 can pre-position filter bag 1 and cage. Furthermore, the elastic contraction force of elastic sealing ring 6 can seal the opening of filter bag 1, improving the sealing performance of the opening.
[0034] After the filter bag 1 is installed, the worker moves the nut 4 so that its threaded connection is made to the elastic metal sheet 2. The nut 4 rotates on the elastic metal sheet 2, which applies pressure to its inclined surface, causing it to deform and move closer to one side of the filter bag 1. When the elastic metal sheet 2 moves closer to the filter bag 1, it drives the arc-shaped clamp 3 to move to one side of the filter bag 1. When the arc-shaped clamp 3 drives the protective pad 8 to snap into the surface of the filter bag 1, it can be fixed to the cage, thereby improving the stability of the filter bag 1 installation.
[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A flexible, leak-proof dust collector bag, comprising a filter bag (1), characterized in that, Also includes: At least two elastic metal sheets (2) are installed on the filter bag (1), and the elastic metal sheets (2) are provided with threaded grooves. Among them, one end of the elastic metal sheet (2) is fixedly connected to an arc-shaped clamp (3), and the filter bag (1) is provided with a connector for positioning the elastic metal sheet (2); The nut (4) is threaded onto the elastic metal sheet (2). When the nut (4) is rotated, the arc-shaped clamp (3) tends to move toward the center of the filter bag (1). At least one elastic sealing ring (6) is fitted inside the filter bag (1), and at least one elastic sealing ring (7) is installed inside the filter bag (1).
2. The elastic-closing, leak-proof dust collector bag according to claim 1, characterized in that, The connector includes a hook and loop fastener (5) fixedly connected to the filter bag (1), and a hook and loop fastener (51) fixedly connected to the elastic metal sheet (2) is attached to the hook and loop fastener (5).
3. The elastic-closing, leak-proof dust collector bag according to claim 2, characterized in that, The hook and loop fastener (5) has a ring structure.
4. The elastic-closing, leak-proof dust collector bag according to claim 1, characterized in that, The nut (4) is provided with anti-slip texture, and the nut (4) and the anti-slip texture are integrally formed.
5. The elastic-closing, leak-proof dust collector bag according to claim 1, characterized in that, A protective pad (8) is fixedly connected to the inner arc surface of the arc-shaped clamp (3), and the protective pad (8) is made of rubber.
6. The elastic-closing, leak-proof dust collector bag according to claim 1, characterized in that, The inner arc surface of the elastic sealing ring (7) is fixedly connected with a protrusion, and the elastic sealing ring (7) and the protrusion are integrally formed.