A dust-removing bag with pleats

By embedding V-shaped steel wires and a skeleton structure into the pleated bag, the problem of irregular shape of the pleated bag is solved, achieving a more efficient dust removal effect and a longer service life.

CN224585543UActive Publication Date: 2026-08-04NEIMENGGU SANWEI COAL CHEM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NEIMENGGU SANWEI COAL CHEM TECH CO LTD
Filing Date
2025-08-25
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The irregular shape of the existing pleats in the pleated bags leads to dust accumulation, reduced dust removal efficiency, and shortened service life.

Method used

It adopts an embedded V-shaped steel wire and skeleton structure, and fixes the shape of the pleats with fabric loops and hooks, eliminating the binding of straps and using the skeleton support to maintain the regularity of the pleats.

Benefits of technology

It effectively avoids wrinkling and deformation and dust accumulation, reduces dust removal resistance, extends the service life of the filter bag, and reduces the frequency of replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a pleated dust collector bag, including a bag and a frame. The bag is fitted onto the outside of the frame, forming multiple pleats with the frame. The pleats include outer pleat protrusions and inner pleat protrusions. Multiple V-shaped steel wires are evenly embedded in the inner pleat protrusions along the length of the bag. The V-shaped steel wires are sewn inside the bag. A cloth ring is sewn onto the inner surface of the bag located on the inner surface of the inner pleat protrusion. The frame includes an inner frame and an outer frame. Multiple outer frames are fixed to the peripheral surfaces of multiple inner frames. The outer frames abut against the inner surfaces of the outer pleat protrusions. Multiple hooks are provided on the inner frames, and the hooks are inserted into the cloth rings. The advantages of this utility model are: eliminating the strap binding method, reducing the resistance of the dust collector without straps, and having a simple structure and low cost; through the design of the frame and bag structure, using V-shaped steel wires, vertical rods, and hooks, severe deformation of the pleats is effectively avoided, making the bag pleats more regular and smooth, preventing dust accumulation, increasing service life, and reducing replacement frequency.
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Description

Technical fields: This utility model relates to the field of dust removal equipment technology, specifically a pleated dust removal bag. Background technology: Pleated dust collector bags are a type of dust collector bag with a pleated structure. They are typically made of special fiber materials that are resistant to high temperatures, corrosion, and wear, offering excellent filtration performance and a long service life. The design of pleated dust collector bags increases the filtration area within a limited space, improving dust collection efficiency while reducing the footprint of the equipment. In industrial production and environmental protection, pleated dust collector bags are widely used as a highly efficient and reliable dust collection device in various dust treatment applications.

[0001] The existing pleats of pleated bags are mainly maintained by sewing drawstrings on the outside. The drawstrings are used to maintain the shape of the pleats. Because the drawstrings are relatively wide and are located on the outside of the pleated bag, the shape of the pleats becomes irregular after repeated use. This makes it easy for dust to accumulate around the drawstrings or other places in the pleats. When blowing back, the dust is not easily blown away from around the drawstrings. Utility Model Content: The purpose of this invention is to provide a pleated dust collector bag to solve the problems mentioned in the background art.

[0002] This utility model is implemented by the following technical solution: A pleated dust collector bag includes a bag and a frame. The bag is fitted onto the outside of the frame, and the bag forms multiple pleats with the frame. Each pleat includes an outer pleat protrusion and an inner pleat protrusion. Multiple V-shaped steel wires are evenly embedded in the inner pleat protrusion along the length of the bag. The V-shaped steel wires are sewn inside the bag. A cloth ring is sewn onto the inner surface of the bag located on the inner pleat protrusion. The frame includes an inner frame and an outer frame. Multiple outer frames are fixed to the peripheral surfaces of multiple inner frames. The outer frames abut against the inner surfaces of the outer pleat protrusions. Multiple hooks are provided on the inner frames, and the hooks are inserted into the cloth rings.

[0003] Preferably, the inner frame includes an iron ring, hooks, and connecting rods; a plurality of hooks and connecting rods are evenly fixed on the outer peripheral surface of the iron ring, and the plurality of hooks and connecting rods are spaced apart.

[0004] Preferably, the outer frame includes vertical rods and V-shaped connecting rods; two adjacent V-shaped connecting rods are connected by vertical rods, and both ends and the middle of the V-shaped connecting rods are connected to the vertical rods, and the connecting rod is connected to the middle of the corresponding V-shaped connecting rod.

[0005] The advantages of this utility model are: it eliminates the existing strap binding method, and reduces the resistance of the dust collector without straps; it has a simple structure and low cost; through the structural design of the frame and filter bag, the V-shaped steel wire, vertical rod and hook can effectively prevent the shape of the pleats from being severely deformed, making the pleats of the filter bag more regular and smooth, thereby avoiding the generation of dust, improving service life and reducing the number of replacements. Attached image description: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 The main view; Figure 3 for Figure 2 Sectional view at point A in the middle; Figure 4 for Figure 3 Enlarged view at point A1; Figure 5 for Figure 1 Exploded view; Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0006] In the picture: 1. Cloth bag; 1.1. Pleats; 1.11. Outer pleats protruding; 1.12. Inner pleats protruding; 1.2. V-shaped steel wire; 1.3. Cloth loops; 2. Frame, 2.1. Inner frame, 2.11. Iron ring, 2.12. Hook, 2.13. Connecting rod, 2.2. Outer frame, 2.21. Vertical rod, 2.22. V-shaped connecting rod. Detailed implementation method: 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.

[0007] Please see Figure 1-6 This utility model provides a pleated dust collector bag technical solution: A pleated dust collector bag includes a bag 1 and a frame 2; the bag 1 is fitted onto the outside of the frame 2. The bag 1, in conjunction with the frame 2, forms sixteen pleats 1.1. Each pleat 1.1 includes eight outer pleat protrusions 1.11 and eight inner pleat protrusions 1.12. At least four V-shaped steel wires 1.2 are evenly embedded along the length of the bag 1 within each inner pleat protrusion 1.12. These V-shaped steel wires 1.2 are sewn inside the bag 1 to prevent deformation of the inner pleat protrusions 1.12 during backflushing, thus maintaining the shape of the pleats. A cloth ring 1.3 is sewn onto the inner surface of the inner pleat protrusions 1.12 of the bag 1.1 to engage with hooks 2.12 of the inner frame 2.1, fixing the position of the inner pleat protrusions 1.12 and preventing dust accumulation on the outer surface of the bag 2. The cloth ring 1.3 can be made of an elastic material, allowing the bag 1 some room to move without affecting the dust blowing effect.

[0008] The skeleton 2 includes at least three inner frames 2.1 and eight outer frames 2.2. The eight outer frames 2.2 are fixed to the peripheral surface of each inner frame 2.1. The outer frames 2.2 abut against the inner surface of the outer pleated protrusions 1.11. The inner frames 2.1 are provided with eight hooks 2.12, which are inserted into the fabric rings 1.3.

[0009] The inner frame 2.1 includes an iron ring 2.11, eight hooks 2.12 and eight connecting rods 2.13; the hooks 2.12 and connecting rods 2.13 are evenly fixed on the outer peripheral surface of the iron ring 2.11, the hooks 2.12 and connecting rods 2.13 are spaced apart, and the connecting rods 2.13 are connected to the middle of the corresponding V-shaped connecting rods 2.22.

[0010] The outer frame 2.2 includes several vertical rods 2.21 and eight V-shaped connecting rods 2.22. Adjacent V-shaped connecting rods 2.22 are connected by vertical rods 2.21. Both ends and the middle of the V-shaped connecting rods 2.22 are connected to the vertical rods 2.21, forming a truss structure between the vertical rods 2.21 and the V-shaped connecting rods 2.22. This structure supports the cloth bag 1 and forms the outer pleated protrusions 1.11. Under the action of the V-shaped steel wires 1.2, vertical rods 2.21 and hooks 2.12, the shape of the pleats can be effectively prevented from being severely deformed. In the absence of straps, the pleats of the cloth bag 1 are smoother, thus preventing dust accumulation, increasing service life and reducing the frequency of replacement.

[0011] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pleated dust collector bag, characterized in that: Includes a cloth bag (1) and a frame (2); the cloth bag (1) is fitted onto the outside of the frame (2), and the cloth bag (1) forms multiple pleats (1.1) with the frame (2). The pleats (1.1) include outer pleat protrusions (1.11) and inner pleat protrusions (1.12). Multiple V-shaped steel wires (1.2) are evenly embedded in the inner pleat protrusions (1.12) along the length of the cloth bag (1). The V-shaped steel wires (1.2) are sewn inside the cloth bag (1). A fabric ring (1.3) is sewn on the inner surface of the inner pleated protrusion (1.12); the skeleton (2) includes an inner frame (2.1) and an outer frame (2.2), a plurality of outer frames (2.2) are fixed on the peripheral surfaces of a plurality of inner frames (2.1), the inner surfaces of the outer frames (2.2) and the outer pleated protrusion (1.11) abut against each other, and a plurality of hooks (2.12) are provided on the inner frame (2.1), and the hooks (2.12) are inserted into the fabric ring (1.3).

2. The pleated dust collector bag according to claim 1, characterized in that: The inner frame (2.1) includes an iron ring (2.11), hooks (2.12) and connecting rods (2.13); a plurality of hooks (2.12) and connecting rods (2.13) are evenly fixed on the outer peripheral surface of the iron ring (2.11), and the plurality of hooks (2.12) and connecting rods (2.13) are spaced apart.

3. A pleated dust collector bag according to claim 2, characterized in that: The outer frame (2.2) includes a vertical rod (2.21) and a V-shaped connecting rod (2.22); two adjacent V-shaped connecting rods (2.22) are connected by the vertical rod (2.21), and both ends and the middle of the V-shaped connecting rod (2.22) are connected to the vertical rod (2.21). The connecting rod (2.13) is connected to the middle of the corresponding V-shaped connecting rod (2.22).